--- /dev/null
+((c-mode . ((indent-tabs-mode . nil))))
--- /dev/null
+*~
+*.1
+*.1.t
+*.3
+*.3.t
+*.bak
+*.cmi
+*.cmx
+*.la
+*.lo
+*.log
+*.o
+*.trs
+
+.deps
+.gdb_history
+.libs
+Makefile
+Makefile.in
+
+/local*
+/nbdkit-*.tar.gz
+/nbdkit-*.*/
+
+/aclocal.m4
+/autom4te.cache
+/common/bitmap/test-bitmap
+/common/include/test-byte-swapping
+/common/include/test-current-dir-name
+/common/include/test-isaligned
+/common/include/test-ispowerof2
+/common/include/test-iszero
+/common/include/test-minmax
+/common/include/test-nextnonzero
+/common/include/test-random
+/common/include/test-tvdiff
+/common/protocol/protostrings.c
+/common/utils/test-quotes
+/compile
+/config.guess
+/config.h
+/config.h.in
+/config.log
+/config.status
+/config.sub
+/configure
+/depcomp
+/docs/filter-links.pod
+/docs/lang-plugin-links.pod
+/docs/plugin-links.pod
+/fuzzing/sync_dir/
+/html/*.html
+/INSTALL
+/install-sh
+/libtool
+/ltmain.sh
+/missing
+/nbdkit
+/plugins/example4/nbdkit-example4-plugin
+/plugins/rust/Cargo.lock
+/plugins/rust/Cargo.toml
+/plugins/rust/target
+/plugins/tar/nbdkit-tar-plugin
+/podwrapper.pl
+/server/nbdkit
+/server/nbdkit.pc
+/server/synopsis.c
+/server/test-utils
+/stamp-h1
+/tests/disk
+/tests/disk.gz
+/tests/disk.xz
+/tests/ext2.img
+/tests/file-data
+/tests/functions.sh
+/tests/keys.psk
+/tests/offset-data
+/tests/partition-disk
+/tests/pki
+/tests/split1
+/tests/split2
+/tests/split3
+/tests/ssh/authorized_keys
+/tests/ssh/id_rsa
+/tests/ssh/id_rsa.pub
+/tests/ssh/ssh_host_rsa_key
+/tests/ssh/ssh_host_rsa_key.pub
+/tests/ssh/sshd_config
+/tests/stamp-ssh-host-key
+/tests/stamp-ssh-user-key
+/tests/test-connect
+/tests/test-curl
+/tests/test-data
+/tests/test-delay
+/tests/test-error
+/tests/test-exit-with-parent
+/tests/test-ext2
+/tests/test-file
+/tests/test-file-block
+/tests/test-gzip
+/tests/test-just-filter-header
+/tests/test-just-plugin-header
+/tests/test-layers
+/tests/test-lua
+/tests/test-memory
+/tests/test-newstyle
+/tests/test-nbd
+/tests/test-null
+/tests/test-ocaml
+/tests/test-ocaml-plugin.so
+/tests/test-offset
+/tests/test-oldstyle
+/tests/test-partition
+/tests/test-perl
+/tests/test-python
+/tests/test-random
+/tests/test-readahead
+/tests/test-ruby
+/tests/test-shell
+/tests/test-shell.img
+/tests/test-socket-activation
+/tests/test-split
+/tests/test-streaming
+/tests/test-tcl
+/tests/test-xz
+/tests/test-xz-curl
+/test-driver
+/valgrind/suppressions
--- /dev/null
+A guide to benchmarking nbdkit
+==============================
+
+
+General comments
+----------------
+
+* The plugin matters! Different plugins have completely different
+ uses, implementations and threading models. There is little point
+ in talking about "the performance of nbdkit" without mentioning what
+ plugin you are testing.
+
+* The client matters! Does the client support multi-conn? Does the
+ client use the oldstyle or newstyle protocol? Has the client been
+ written with performance in mind? The currently best clients are
+ (a) the Linux kernel (nbd.ko) (b) qemu. Make sure you are using
+ recent versions and have multi-conn enabled.
+
+* Filters affect performance. When benchmarking you should never use
+ filters unless filters are what you are trying to benchmark.
+
+
+Testing using Linux kernel client and fio
+-----------------------------------------
+
+(1) Install Jens Axboe's fio (Flexible I/O tester)
+
+https://github.com/axboe/fio
+
+(2) Create the fio configuation file:
+
+Create /var/tmp/test.fio containing:
+
+----------------------------------------------------------------------
+[test]
+rw=randrw
+size=64m
+directory=/var/tmp/nbd
+ioengine=libaio
+iodepth=4
+direct=1
+numjobs=8
+group_reporting
+time_based
+runtime=120
+----------------------------------------------------------------------
+
+(3) Run nbdkit.
+
+From the nbdkit source directory:
+
+rm /tmp/sock
+./nbdkit -f -U /tmp/sock memory size=1G
+
+(4) Loop mount the NBD server:
+
+modprobe nbd
+nbd-client -C 8 -b 512 -unix /tmp/sock /dev/nbd0
+mkfs.xfs -f /dev/nbd0
+mkdir /var/tmp/nbd
+mount /dev/nbd0 /var/tmp/nbd
+
+(5) Run the fio test:
+
+fio /var/tmp/test.fio
+
+
+Variations
+----------
+
+* Try turning multi-conn on or off or adjusting the number of
+ connections. See the nbd-client -C option.
+
+* Try adjusting the number of fio threads.
+
+* Run nbdkit under perf:
+
+ perf record -a -g --call-graph=dwarf -- \
+ server/nbdkit -f -U /tmp/sock \
+ ./plugins/memory/.libs/nbdkit-memory-plugin.so size=1G
+
+* Use other plugins. nbdkit-file-plugin is an important one to test.
+ It might also be worth devising a test using a readonly plugin.
+
+
+Future work
+-----------
+
+* Write an NBD I/O engine for fio.
--- /dev/null
+nbdkit
+Copyright (C) 2013-2018 Red Hat Inc.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+* Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+
+* Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+
+* Neither the name of Red Hat nor the names of its contributors may be
+used to endorse or promote products derived from this software without
+specific prior written permission.
+
+THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
--- /dev/null
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+ACLOCAL_AMFLAGS = -I m4
+
+EXTRA_DIST = \
+ BENCHMARKING \
+ .dir-locals.el \
+ .gitignore \
+ html/pod.css \
+ LICENSE \
+ m4/.gitignore \
+ OTHER_PLUGINS \
+ scripts/git.orderfile \
+ SECURITY
+
+CLEANFILES += html/*.html
+
+# NB: This is not the real nbdkit binary. It's a wrapper that allows
+# you to run nbdkit from the build directory before it is installed.
+noinst_PROGRAMS = nbdkit
+nbdkit_SOURCES = wrapper.c server/options.h
+nbdkit_CPPFLAGS = \
+ -I$(top_srcdir)/server \
+ -Dbuilddir=\"$(abs_top_builddir)\" \
+ -Dsrcdir=\"$(abs_top_srcdir)\" \
+ -DVALGRIND=\"$(VALGRIND)\"
+nbdkit_CFLAGS = $(WARNINGS_CFLAGS)
+nbdkit_DEPENDENCIES = config.status
+
+SUBDIRS = \
+ bash \
+ docs \
+ fuzzing \
+ valgrind \
+ include \
+ common/include \
+ common/protocol \
+ common/utils \
+ server
+
+if HAVE_PLUGINS
+SUBDIRS += \
+ common/bitmap \
+ common/gpt \
+ common/regions \
+ common/sparse \
+ plugins \
+ filters
+endif
+
+SUBDIRS += tests
+
+check-valgrind:
+ $(MAKE) -C tests check-valgrind
+
+check-root:
+ $(MAKE) -C tests check-root
+
+check-vddk:
+ $(MAKE) -C tests check-vddk
+
+#----------------------------------------------------------------------
+# Maintainers only!
+
+# Check no files are missing from EXTRA_DIST rules, and that all
+# generated files have been included in the tarball. (Note you must
+# have done 'make dist')
+maintainer-check-extra-dist:
+ @zcat $(PACKAGE_NAME)-$(VERSION).tar.gz | tar tf - | sort | \
+ sed 's,^$(PACKAGE_NAME)-$(VERSION)/,,' > tarfiles
+ @git ls-files | \
+ sort > gitfiles
+ @comm -13 tarfiles gitfiles > comm-out
+ @echo Checking for differences between EXTRA_DIST and git ...
+ @cat comm-out
+ @[ ! -s comm-out ]
+ @rm tarfiles gitfiles comm-out
+ @echo PASS: EXTRA_DIST tests
+
+# Commit everything in the current directory and set the commit
+# message to the current version number.
+maintainer-commit:
+ git commit -a -m "Version $(VERSION)."
+
+# Tag HEAD with the current version.
+maintainer-tag:
+ git tag -a v$(VERSION) -m "Version $(VERSION)." -f
+
+# Run tests and display the time taken to run each test, which is
+# useful for diagnosing slow-running tests.
+#
+# Try also setting LIBGUESTFS_BACKEND_SETTINGS=force_tcg which
+# emulates what happens in Koji.
+maintainer-check-times:
+ make check -j1 | ts -i
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
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+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
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+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+
+
+check-valgrind:
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+
+check-root:
+ $(MAKE) -C tests check-root
+
+check-vddk:
+ $(MAKE) -C tests check-vddk
+
+#----------------------------------------------------------------------
+# Maintainers only!
+
+# Check no files are missing from EXTRA_DIST rules, and that all
+# generated files have been included in the tarball. (Note you must
+# have done 'make dist')
+maintainer-check-extra-dist:
+ @zcat $(PACKAGE_NAME)-$(VERSION).tar.gz | tar tf - | sort | \
+ sed 's,^$(PACKAGE_NAME)-$(VERSION)/,,' > tarfiles
+ @git ls-files | \
+ sort > gitfiles
+ @comm -13 tarfiles gitfiles > comm-out
+ @echo Checking for differences between EXTRA_DIST and git ...
+ @cat comm-out
+ @[ ! -s comm-out ]
+ @rm tarfiles gitfiles comm-out
+ @echo PASS: EXTRA_DIST tests
+
+# Commit everything in the current directory and set the commit
+# message to the current version number.
+maintainer-commit:
+ git commit -a -m "Version $(VERSION)."
+
+# Tag HEAD with the current version.
+maintainer-tag:
+ git tag -a v$(VERSION) -m "Version $(VERSION)." -f
+
+# Run tests and display the time taken to run each test, which is
+# useful for diagnosing slow-running tests.
+#
+# Try also setting LIBGUESTFS_BACKEND_SETTINGS=force_tcg which
+# emulates what happens in Koji.
+maintainer-check-times:
+ make check -j1 | ts -i
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+Have you written an nbdkit plugin that you're willing to share?
+Email <libguestfs@redhat.com> to get it added to this list.
+
+* XVA (XenServer Virtual Appliance)
+
+This simple plugin written in Perl lets you read these files and
+reexport them as NBD. It does not require that the XVA is unpacked:
+https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg02971.html
+https://lists.gnu.org/archive/html/qemu-devel/2017-11/plHKJ062x5Uo.pl
+
+The whole thread is worth reading because several different approaches
+to dealing with XVA files are presented:
+https://lists.gnu.org/archive/html/qemu-devel/2017-11/threads.html#02839
--- /dev/null
+NBD — Network Block Device — is a protocol for accessing Block Devices
+(hard disks and disk-like things) over a Network.
+
+nbdkit is a toolkit for creating NBD servers.
+
+The key features are:
+
+ * Multithreaded NBD server written in C with good performance.
+
+ * Minimal dependencies for the basic server.
+
+ * Liberal license (BSD) allows nbdkit to be linked to proprietary
+ libraries or included in proprietary code.
+
+ * Well-documented, simple plugin API with a stable ABI guarantee.
+ Lets you export “unconventional” block devices easily.
+
+ * You can write plugins in C, Lua, Perl, Python, OCaml, Ruby, Rust,
+ shell script or Tcl.
+
+ * Filters can be stacked in front of plugins to transform the output.
+
+For documentation, see the ‘docs/’ directory.
+
+For plugins, examples and filters, see the ‘plugins/’ and ‘filters/’
+directories.
+
+LICENSE
+=======
+
+This software is copyright (C) Red Hat Inc. and licensed under a BSD
+license. See ‘LICENSE’ for details.
+
+BUILDING FROM SOURCE
+====================
+
+Requirements
+------------
+
+To build the basic server and some plugins nbdkit needs nothing except
+Linux, FreeBSD or OpenBSD, and:
+
+ - GCC or Clang
+
+ - bash
+
+ - GNU make
+
+Although it is possible to build without it, it’s recommended to
+enable TLS (authentication and encryption) support for which you will
+need:
+
+ - gnutls >= 3.3.0
+
+Optional dependencies
+---------------------
+
+To build the man pages, you will optionally need to install:
+
+ - Perl
+
+ - Pod::Man and Pod::Simple (Perl library)
+
+For SELinux socket labelling support:
+
+ - libselinux
+
+For the gzip plugin:
+
+ - zlib
+
+For the xz filter:
+
+ - liblzma
+
+For the curl (HTTP/FTP) plugin:
+
+ - libcurl
+
+For the ssh plugin:
+
+ - libssh >= 0.8.0
+ (this is a different library from libssh2 - that will not work)
+
+For the iso plugin:
+
+ - genisoimage or mkisofs
+
+For the floppy plugin:
+
+ - iconv (on Linux this is built into glibc, on other systems
+ it may be a separate library)
+
+For the libvirt plugin:
+
+ - libvirt
+
+For the libguestfs plugin, and to run parts of the test suite:
+
+ - libguestfs
+
+ - guestfish (from libguestfs)
+
+For the ext2 plugin:
+
+ - ext2fs
+
+ - com_err
+
+For the linuxdisk plugin:
+
+ - mke2fs >= 1.42.10 (from e2fsprogs)
+
+For the Perl, example4 and tar plugins:
+
+ - perl interpreter
+
+ - perl development libraries
+
+ - perl module ExtUtils::Embed
+
+For the Python plugin:
+
+ - python interpreter
+ (either version 2 or 3 may be used)
+
+ - python development libraries
+
+For the OCaml plugin:
+
+ - OCaml >= 4.02.2
+
+For the Tcl plugin:
+
+ - Tcl development library and headers
+
+For the Lua plugin:
+
+ - Lua development library and headers
+
+For the Rust plugin:
+
+ - cargo (other dependencies will be downloaded at build time)
+
+For bash tab completion:
+
+ - bash-completion >= 1.99
+
+To test for memory leaks (‘make check-valgrind’):
+
+ - valgrind program and development headers
+
+For non-essential enhancements to the test suite:
+
+ - ip, ss (from iproute package)
+
+ - jq
+
+ - losetup (from util-linux package)
+
+ - mke2fs (from e2fsprogs)
+
+ - qemu-img, qemu-io, qemu-nbd (usually shipped with qemu)
+
+ - sfdisk (from util-linux)
+
+ - socat
+
+ - ssh-keygen
+
+ - stat (from coreutils)
+
+Building
+--------
+
+ To build from tarball: To build from git:
+ ---------------------- ------------------
+ autoreconf -i
+ ./configure ./configure
+ make make
+ make check make check
+
+To run nbdkit from the source directory, use the top level ./nbdkit
+wrapper. It will run nbdkit and plugins from the locally compiled
+directory:
+
+ $ ./nbdkit example1 -f -v
+ ./server/nbdkit ./plugins/example1/.libs/nbdkit-example1-plugin.so -f -v
+ [etc]
+
+Optionally run this command as root to install everything:
+
+ make install
+
+Python
+------
+
+By default nbdkit uses the Python version of the Python interpreter
+called “python” on the current $PATH. To use another version of
+Python you may need to set the PYTHON variable when configuring. For
+example:
+
+ ./configure PYTHON=/usr/bin/python3
+
+Running the tests
+-----------------
+
+You will need to install libguestfs to run most of the test suite:
+
+ make check
+
+The test suite is fairly comprehensive. It runs the newly built
+nbdkit + plugins as a captive process, and tests them using
+libguestfs. If there is a failure, look at the corresponding
+‘tests/*.log’ file for debug information.
+
+A few tests require root privileges, and are skipped by default. To
+run them you must do:
+
+ sudo make check-root
+
+If you have the proprietary VDDK library, you can test
+nbdkit-vddk-plugin against the library like this:
+
+ make check-vddk vddkdir=vmware-vix-disklib-distrib
+
+DOWNLOAD TARBALLS
+=================
+
+Tarballs are available from:
+http://libguestfs.org/download/nbdkit
+
+DEVELOPERS
+==========
+
+Install the valgrind program and development headers.
+
+Use:
+
+ ./configure --enable-gcc-warnings --enable-valgrind
+
+When testing use:
+
+ make check
+ make check-valgrind
+
+For development ideas, see the TODO file.
+
+The upstream git repository is:
+https://github.com/libguestfs/nbdkit
+
+Please send patches to the libguestfs mailing list:
+https://www.redhat.com/mailman/listinfo/libguestfs
+
+For further information, see:
+http://libguestfs.org/
+https://github.com/NetworkBlockDevice/nbd/blob/master/doc/proto.md
--- /dev/null
+If you think you've found a serious or potential security bug that you
+don't want to report on a public mailing list, then send email to both
+<rjones@redhat.com> and <eblake@redhat.com>.
+
+Make it clear in the email Subject line that it's a serious or
+security-related bug in nbdkit.
+
+You can also sign and/or encrypt messages using our GPG public keys
+available on the usual keyservers.
--- /dev/null
+To-do list for nbdkit
+======================================================================
+
+General ideas for improvements
+------------------------------
+
+* Listen on specific interfaces or protocols (eg. only IPv6).
+
+* Performance - measure and improve it.
+
+* Exit on last connection (the default behaviour of qemu-nbd unless
+ you use -t).
+
+* Limit number of incoming connections (like qemu-nbd -e).
+
+* For parallel plugins, only create threads on demand from parallel
+ client requests, rather than pre-creating all threads at connection
+ time, up to the thread pool size limit. Of course, once created, a
+ thread is reused as possible until the connection closes.
+
+* Async callbacks. The current parallel support requires one thread
+ per pending message; a solution with fewer threads would split
+ low-level code between request and response, where the callback has
+ to inform nbdkit when the response is ready:
+ https://www.redhat.com/archives/libguestfs/2018-January/msg00149.html
+
+* More NBD protocol features. The only currently missing features are
+ structured replies for sparse reads, and online resize.
+
+* Add a callback to let plugins request minimum alignment for the
+ buffer to pread/pwrite; useful for a plugin utilizing O_DIRECT or
+ other situation where pre-aligned buffers are more efficient.
+ Ideally, a blocksize filter would honor strict alignment below and
+ advertise loose alignment above; all other filters (particularly
+ ones like offset) can fail to initialize if they can't guarantee
+ strict alignment and don't want to deal with bounce buffers.
+
+* Add per-connection caching of .can_FOO callbacks (we already have
+ some: .can_write is only called once, but .can_fua is called on
+ every request with the FUA flag set).
+
+* Test that zero-length read/write/extents requests behave sanely
+ (NBD protocol says they are unspecified).
+
+* If a client negotiates structured replies, and issues a read/extents
+ call that exceeds EOF (qemu 3.1 is one such client, when nbdkit
+ serves non-sector-aligned images), return the valid answer for the
+ subset of the request in range and then NBD_REPLY_TYPE_ERROR_OFFSET
+ for the tail, rather than erroring the entire request.
+
+* Test and document how to run nbdkit from inetd and xinetd in
+ nbdkit-service(1).
+
+* Validate that requests which are forwarded by filters are not out of
+ range. This is harder than it looks because filters don't "know"
+ the size of the layer below (unless they call .get_size, but that
+ might be expensive). This gets particularly tricky if you assume
+ that .get_size cannot be cached and/or might change per-connection,
+ although the rest of nbdkit doesn't behave well in that case either.
+
+* Similarly validate the filters don't forward write requests to
+ read-only plugins.
+
+* Audit the code base to get rid of strerror() usage (the function is
+ not thread-safe); however, using geterror_r() can be tricky as it
+ has a different signature in glibc than in POSIX.
+
+* Teach nbdkit_error() to have smart newline appending (for existing
+ inconsistent clients), while fixing internal uses to omit the
+ newline. Commit ef4f72ef has some ideas on smart newlines, but that
+ should probably be factored into a utility function.
+
+* We may need a way to lock nbdkit into memory and adjust the OOM
+ killer score. See this LKML discussion:
+ https://www.mail-archive.com/linux-kernel@vger.kernel.org/msg1933394.html
+ and also look at the implementation of the -swap option in
+ nbd-client.
+
+Suggestions for plugins
+-----------------------
+
+Note: qemu supports other formats such as libnfs, iscsi, gluster and
+ceph/rbd, and while similar plugins could be written for nbdkit there
+is no compelling reason unless the result is better than qemu-nbd.
+For the majority of users it would be better if they were directed to
+qemu-nbd for these use cases.
+
+* XVA files
+
+ https://lists.gnu.org/archive/html/qemu-devel/2017-11/msg02971.html
+ is a partial solution but it needs cleaning up.
+
+nbdkit-nbd-plugin could use enhancements:
+
+* FUA passthrough, rather than extra FLUSH calls. For this, .can_fua
+ must be exposed to plugins (not just filters), and needs to be
+ tri-state rather than just bool.
+
+* Enable client-side TLS (right now, the nbd plugin allows us to
+ support an encrypted client connecting to a plain server; but we
+ would need TLS to support a plain client connecting to an encrypted
+ server).
+
+* Support for connecting to a server over IP rather than just Unix
+ sockets.
+
+nbdkit-floppy-plugin:
+
+* Add boot sector support. In theory this is easy (eg. using
+ SYSLINUX), but the practical reality of making a fully bootable
+ floppy is rather more complex.
+
+* Add multiple dir merging.
+
+nbdkit-linuxdisk-plugin:
+
+* Add multiple dir merging (in e2fsprogs mke2fs).
+
+Suggestions for filters
+-----------------------
+
+* tar plugin should really be a filter
+
+* gzip plugin should really be a filter
+
+* libarchive could be used to implement a general tar/zip filter
+
+* LUKS encrypt/decrypt filter, bonus points if compatible with qemu
+ LUKS-encrypted disk images
+
+* masking plugin features for testing clients (see 'nozero' and 'fua'
+ filters for examples)
+
+* nbdkit-cache-filter should handle ENOSPC errors automatically by
+ reclaiming blocks from the cache
+
+nbdkit-rate-filter:
+
+* allow other kinds of traffic shaping such as VBR
+
+* limit traffic per client (ie. per IP address)
+
+* split large requests to avoid long, lumpy sleeps when request size
+ is much larger than rate limit
+
+Filters for security
+--------------------
+
+Things like blacklisting or whitelisting IP addresses can be done
+using external wrappers (TCP wrappers, systemd).
+
+However it might be nice to have a configurable filter for preventing
+valid but not sensible requests. The server already filters invalid
+requests. This would be like seccomp, and could be implemented using
+an eBPF-based parser. Unfortunately actual eBPF is difficult to use
+for userspace processes. The "standard" isn't solidly defined - the
+Linux kernel implementation is the standard - and Linux has by far the
+best implementation, particularly around bytecode verification and
+JITting. There is a userspace VM (ubpf) but it has very limited
+capabilities compared to Linux.
+
+Composing nbdkit
+----------------
+
+Filters allow certain types of composition, but others would not be
+possible, for example RAIDing over multiple nbd sources. Because the
+plugin API limits us to loading a single plugin to the server, the
+best way to do this (and the most robust) is to compose multiple
+nbdkit processes.
+
+The nbd plugin (plugins/nbd) already contains an NBD client, so we
+could factor this client out and make it available to other plugins to
+use.
+
+Build-related
+-------------
+
+* Figure out how to get 'make distcheck' working. VPATH builds are
+ working, but various pkg-config results that try to stick
+ bash-completion and ocaml add-ons into their system-wide home do
+ not play nicely with --prefix builds for a non-root user.
+
+* Port to Windows.
+
+Rust plugins
+------------
+
+* Consider supporting a more idiomatic style for writing Rust plugins.
+
+* Better documentation.
+
+* Add tests.
+
+* There is no attempt to ‘make install’ or otherwise package the
+ crate. Since it looks as if Rust code is normally distributed as
+ source it's not clear what that would even mean.
+
+V3 plugin protocol
+------------------
+
+From time to time we may update the plugin protocol. This section
+collects ideas for things which might be fixed in the next version of
+the protocol.
+
+Note that we keep the old protocol(s) around so that source
+compatibility is retained. Plugins must opt in to the new protocol
+using ‘#define NBDKIT_API_VERSION <version>’.
+
+* All methods taking a ‘count’ field should be uint64_t (instead of
+ uint32_t). Although the NBD protocol does not support 64 bit
+ lengths, it might do in future.
+
+* pread could be changed to allow it to support Structured Replies
+ (SRs). This could mean allowing it to return partial data, holes,
+ zeroes, etc. For a client that negotiates SR coupled with a plugin
+ that supports .extents, the v2 protocol would allow us to at least
+ synthesize NBD_REPLY_TYPE_OFFSET_HOLE for less network traffic, even
+ though the plugin will still have to fully populate the .pread
+ buffer; the v3 protocol should make sparse reads more direct.
+
+* Parameters should be systematized so that they aren't just (key,
+ value) strings. nbdkit should know the possible keys for the plugin
+ and filters, and the type of the values, and both check and parse
+ them for the plugin.
--- /dev/null
+# generated automatically by aclocal 1.16.1 -*- Autoconf -*-
+
+# Copyright (C) 1996-2018 Free Software Foundation, Inc.
+
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+m4_ifndef([AC_CONFIG_MACRO_DIRS], [m4_defun([_AM_CONFIG_MACRO_DIRS], [])m4_defun([AC_CONFIG_MACRO_DIRS], [_AM_CONFIG_MACRO_DIRS($@)])])
+m4_ifndef([AC_AUTOCONF_VERSION],
+ [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
+m4_if(m4_defn([AC_AUTOCONF_VERSION]), [2.69],,
+[m4_warning([this file was generated for autoconf 2.69.
+You have another version of autoconf. It may work, but is not guaranteed to.
+If you have problems, you may need to regenerate the build system entirely.
+To do so, use the procedure documented by the package, typically 'autoreconf'.])])
+
+# pkg.m4 - Macros to locate and utilise pkg-config. -*- Autoconf -*-
+# serial 11 (pkg-config-0.29.1)
+
+dnl Copyright © 2004 Scott James Remnant <scott@netsplit.com>.
+dnl Copyright © 2012-2015 Dan Nicholson <dbn.lists@gmail.com>
+dnl
+dnl This program is free software; you can redistribute it and/or modify
+dnl it under the terms of the GNU General Public License as published by
+dnl the Free Software Foundation; either version 2 of the License, or
+dnl (at your option) any later version.
+dnl
+dnl This program is distributed in the hope that it will be useful, but
+dnl WITHOUT ANY WARRANTY; without even the implied warranty of
+dnl MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+dnl General Public License for more details.
+dnl
+dnl You should have received a copy of the GNU General Public License
+dnl along with this program; if not, write to the Free Software
+dnl Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
+dnl 02111-1307, USA.
+dnl
+dnl As a special exception to the GNU General Public License, if you
+dnl distribute this file as part of a program that contains a
+dnl configuration script generated by Autoconf, you may include it under
+dnl the same distribution terms that you use for the rest of that
+dnl program.
+
+dnl PKG_PREREQ(MIN-VERSION)
+dnl -----------------------
+dnl Since: 0.29
+dnl
+dnl Verify that the version of the pkg-config macros are at least
+dnl MIN-VERSION. Unlike PKG_PROG_PKG_CONFIG, which checks the user's
+dnl installed version of pkg-config, this checks the developer's version
+dnl of pkg.m4 when generating configure.
+dnl
+dnl To ensure that this macro is defined, also add:
+dnl m4_ifndef([PKG_PREREQ],
+dnl [m4_fatal([must install pkg-config 0.29 or later before running autoconf/autogen])])
+dnl
+dnl See the "Since" comment for each macro you use to see what version
+dnl of the macros you require.
+m4_defun([PKG_PREREQ],
+[m4_define([PKG_MACROS_VERSION], [0.29.1])
+m4_if(m4_version_compare(PKG_MACROS_VERSION, [$1]), -1,
+ [m4_fatal([pkg.m4 version $1 or higher is required but ]PKG_MACROS_VERSION[ found])])
+])dnl PKG_PREREQ
+
+dnl PKG_PROG_PKG_CONFIG([MIN-VERSION])
+dnl ----------------------------------
+dnl Since: 0.16
+dnl
+dnl Search for the pkg-config tool and set the PKG_CONFIG variable to
+dnl first found in the path. Checks that the version of pkg-config found
+dnl is at least MIN-VERSION. If MIN-VERSION is not specified, 0.9.0 is
+dnl used since that's the first version where most current features of
+dnl pkg-config existed.
+AC_DEFUN([PKG_PROG_PKG_CONFIG],
+[m4_pattern_forbid([^_?PKG_[A-Z_]+$])
+m4_pattern_allow([^PKG_CONFIG(_(PATH|LIBDIR|SYSROOT_DIR|ALLOW_SYSTEM_(CFLAGS|LIBS)))?$])
+m4_pattern_allow([^PKG_CONFIG_(DISABLE_UNINSTALLED|TOP_BUILD_DIR|DEBUG_SPEW)$])
+AC_ARG_VAR([PKG_CONFIG], [path to pkg-config utility])
+AC_ARG_VAR([PKG_CONFIG_PATH], [directories to add to pkg-config's search path])
+AC_ARG_VAR([PKG_CONFIG_LIBDIR], [path overriding pkg-config's built-in search path])
+
+if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
+ AC_PATH_TOOL([PKG_CONFIG], [pkg-config])
+fi
+if test -n "$PKG_CONFIG"; then
+ _pkg_min_version=m4_default([$1], [0.9.0])
+ AC_MSG_CHECKING([pkg-config is at least version $_pkg_min_version])
+ if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ PKG_CONFIG=""
+ fi
+fi[]dnl
+])dnl PKG_PROG_PKG_CONFIG
+
+dnl PKG_CHECK_EXISTS(MODULES, [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+dnl -------------------------------------------------------------------
+dnl Since: 0.18
+dnl
+dnl Check to see whether a particular set of modules exists. Similar to
+dnl PKG_CHECK_MODULES(), but does not set variables or print errors.
+dnl
+dnl Please remember that m4 expands AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+dnl only at the first occurence in configure.ac, so if the first place
+dnl it's called might be skipped (such as if it is within an "if", you
+dnl have to call PKG_CHECK_EXISTS manually
+AC_DEFUN([PKG_CHECK_EXISTS],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+if test -n "$PKG_CONFIG" && \
+ AC_RUN_LOG([$PKG_CONFIG --exists --print-errors "$1"]); then
+ m4_default([$2], [:])
+m4_ifvaln([$3], [else
+ $3])dnl
+fi])
+
+dnl _PKG_CONFIG([VARIABLE], [COMMAND], [MODULES])
+dnl ---------------------------------------------
+dnl Internal wrapper calling pkg-config via PKG_CONFIG and setting
+dnl pkg_failed based on the result.
+m4_define([_PKG_CONFIG],
+[if test -n "$$1"; then
+ pkg_cv_[]$1="$$1"
+ elif test -n "$PKG_CONFIG"; then
+ PKG_CHECK_EXISTS([$3],
+ [pkg_cv_[]$1=`$PKG_CONFIG --[]$2 "$3" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes ],
+ [pkg_failed=yes])
+ else
+ pkg_failed=untried
+fi[]dnl
+])dnl _PKG_CONFIG
+
+dnl _PKG_SHORT_ERRORS_SUPPORTED
+dnl ---------------------------
+dnl Internal check to see if pkg-config supports short errors.
+AC_DEFUN([_PKG_SHORT_ERRORS_SUPPORTED],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi[]dnl
+])dnl _PKG_SHORT_ERRORS_SUPPORTED
+
+
+dnl PKG_CHECK_MODULES(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
+dnl [ACTION-IF-NOT-FOUND])
+dnl --------------------------------------------------------------
+dnl Since: 0.4.0
+dnl
+dnl Note that if there is a possibility the first call to
+dnl PKG_CHECK_MODULES might not happen, you should be sure to include an
+dnl explicit call to PKG_PROG_PKG_CONFIG in your configure.ac
+AC_DEFUN([PKG_CHECK_MODULES],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+AC_ARG_VAR([$1][_CFLAGS], [C compiler flags for $1, overriding pkg-config])dnl
+AC_ARG_VAR([$1][_LIBS], [linker flags for $1, overriding pkg-config])dnl
+
+pkg_failed=no
+AC_MSG_CHECKING([for $1])
+
+_PKG_CONFIG([$1][_CFLAGS], [cflags], [$2])
+_PKG_CONFIG([$1][_LIBS], [libs], [$2])
+
+m4_define([_PKG_TEXT], [Alternatively, you may set the environment variables $1[]_CFLAGS
+and $1[]_LIBS to avoid the need to call pkg-config.
+See the pkg-config man page for more details.])
+
+if test $pkg_failed = yes; then
+ AC_MSG_RESULT([no])
+ _PKG_SHORT_ERRORS_SUPPORTED
+ if test $_pkg_short_errors_supported = yes; then
+ $1[]_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "$2" 2>&1`
+ else
+ $1[]_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "$2" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$$1[]_PKG_ERRORS" >&AS_MESSAGE_LOG_FD
+
+ m4_default([$4], [AC_MSG_ERROR(
+[Package requirements ($2) were not met:
+
+$$1_PKG_ERRORS
+
+Consider adjusting the PKG_CONFIG_PATH environment variable if you
+installed software in a non-standard prefix.
+
+_PKG_TEXT])[]dnl
+ ])
+elif test $pkg_failed = untried; then
+ AC_MSG_RESULT([no])
+ m4_default([$4], [AC_MSG_FAILURE(
+[The pkg-config script could not be found or is too old. Make sure it
+is in your PATH or set the PKG_CONFIG environment variable to the full
+path to pkg-config.
+
+_PKG_TEXT
+
+To get pkg-config, see <http://pkg-config.freedesktop.org/>.])[]dnl
+ ])
+else
+ $1[]_CFLAGS=$pkg_cv_[]$1[]_CFLAGS
+ $1[]_LIBS=$pkg_cv_[]$1[]_LIBS
+ AC_MSG_RESULT([yes])
+ $3
+fi[]dnl
+])dnl PKG_CHECK_MODULES
+
+
+dnl PKG_CHECK_MODULES_STATIC(VARIABLE-PREFIX, MODULES, [ACTION-IF-FOUND],
+dnl [ACTION-IF-NOT-FOUND])
+dnl ---------------------------------------------------------------------
+dnl Since: 0.29
+dnl
+dnl Checks for existence of MODULES and gathers its build flags with
+dnl static libraries enabled. Sets VARIABLE-PREFIX_CFLAGS from --cflags
+dnl and VARIABLE-PREFIX_LIBS from --libs.
+dnl
+dnl Note that if there is a possibility the first call to
+dnl PKG_CHECK_MODULES_STATIC might not happen, you should be sure to
+dnl include an explicit call to PKG_PROG_PKG_CONFIG in your
+dnl configure.ac.
+AC_DEFUN([PKG_CHECK_MODULES_STATIC],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+_save_PKG_CONFIG=$PKG_CONFIG
+PKG_CONFIG="$PKG_CONFIG --static"
+PKG_CHECK_MODULES($@)
+PKG_CONFIG=$_save_PKG_CONFIG[]dnl
+])dnl PKG_CHECK_MODULES_STATIC
+
+
+dnl PKG_INSTALLDIR([DIRECTORY])
+dnl -------------------------
+dnl Since: 0.27
+dnl
+dnl Substitutes the variable pkgconfigdir as the location where a module
+dnl should install pkg-config .pc files. By default the directory is
+dnl $libdir/pkgconfig, but the default can be changed by passing
+dnl DIRECTORY. The user can override through the --with-pkgconfigdir
+dnl parameter.
+AC_DEFUN([PKG_INSTALLDIR],
+[m4_pushdef([pkg_default], [m4_default([$1], ['${libdir}/pkgconfig'])])
+m4_pushdef([pkg_description],
+ [pkg-config installation directory @<:@]pkg_default[@:>@])
+AC_ARG_WITH([pkgconfigdir],
+ [AS_HELP_STRING([--with-pkgconfigdir], pkg_description)],,
+ [with_pkgconfigdir=]pkg_default)
+AC_SUBST([pkgconfigdir], [$with_pkgconfigdir])
+m4_popdef([pkg_default])
+m4_popdef([pkg_description])
+])dnl PKG_INSTALLDIR
+
+
+dnl PKG_NOARCH_INSTALLDIR([DIRECTORY])
+dnl --------------------------------
+dnl Since: 0.27
+dnl
+dnl Substitutes the variable noarch_pkgconfigdir as the location where a
+dnl module should install arch-independent pkg-config .pc files. By
+dnl default the directory is $datadir/pkgconfig, but the default can be
+dnl changed by passing DIRECTORY. The user can override through the
+dnl --with-noarch-pkgconfigdir parameter.
+AC_DEFUN([PKG_NOARCH_INSTALLDIR],
+[m4_pushdef([pkg_default], [m4_default([$1], ['${datadir}/pkgconfig'])])
+m4_pushdef([pkg_description],
+ [pkg-config arch-independent installation directory @<:@]pkg_default[@:>@])
+AC_ARG_WITH([noarch-pkgconfigdir],
+ [AS_HELP_STRING([--with-noarch-pkgconfigdir], pkg_description)],,
+ [with_noarch_pkgconfigdir=]pkg_default)
+AC_SUBST([noarch_pkgconfigdir], [$with_noarch_pkgconfigdir])
+m4_popdef([pkg_default])
+m4_popdef([pkg_description])
+])dnl PKG_NOARCH_INSTALLDIR
+
+
+dnl PKG_CHECK_VAR(VARIABLE, MODULE, CONFIG-VARIABLE,
+dnl [ACTION-IF-FOUND], [ACTION-IF-NOT-FOUND])
+dnl -------------------------------------------
+dnl Since: 0.28
+dnl
+dnl Retrieves the value of the pkg-config variable for the given module.
+AC_DEFUN([PKG_CHECK_VAR],
+[AC_REQUIRE([PKG_PROG_PKG_CONFIG])dnl
+AC_ARG_VAR([$1], [value of $3 for $2, overriding pkg-config])dnl
+
+_PKG_CONFIG([$1], [variable="][$3]["], [$2])
+AS_VAR_COPY([$1], [pkg_cv_][$1])
+
+AS_VAR_IF([$1], [""], [$5], [$4])dnl
+])dnl PKG_CHECK_VAR
+
+dnl PKG_WITH_MODULES(VARIABLE-PREFIX, MODULES,
+dnl [ACTION-IF-FOUND],[ACTION-IF-NOT-FOUND],
+dnl [DESCRIPTION], [DEFAULT])
+dnl ------------------------------------------
+dnl
+dnl Prepare a "--with-" configure option using the lowercase
+dnl [VARIABLE-PREFIX] name, merging the behaviour of AC_ARG_WITH and
+dnl PKG_CHECK_MODULES in a single macro.
+AC_DEFUN([PKG_WITH_MODULES],
+[
+m4_pushdef([with_arg], m4_tolower([$1]))
+
+m4_pushdef([description],
+ [m4_default([$5], [build with ]with_arg[ support])])
+
+m4_pushdef([def_arg], [m4_default([$6], [auto])])
+m4_pushdef([def_action_if_found], [AS_TR_SH([with_]with_arg)=yes])
+m4_pushdef([def_action_if_not_found], [AS_TR_SH([with_]with_arg)=no])
+
+m4_case(def_arg,
+ [yes],[m4_pushdef([with_without], [--without-]with_arg)],
+ [m4_pushdef([with_without],[--with-]with_arg)])
+
+AC_ARG_WITH(with_arg,
+ AS_HELP_STRING(with_without, description[ @<:@default=]def_arg[@:>@]),,
+ [AS_TR_SH([with_]with_arg)=def_arg])
+
+AS_CASE([$AS_TR_SH([with_]with_arg)],
+ [yes],[PKG_CHECK_MODULES([$1],[$2],$3,$4)],
+ [auto],[PKG_CHECK_MODULES([$1],[$2],
+ [m4_n([def_action_if_found]) $3],
+ [m4_n([def_action_if_not_found]) $4])])
+
+m4_popdef([with_arg])
+m4_popdef([description])
+m4_popdef([def_arg])
+
+])dnl PKG_WITH_MODULES
+
+dnl PKG_HAVE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
+dnl [DESCRIPTION], [DEFAULT])
+dnl -----------------------------------------------
+dnl
+dnl Convenience macro to trigger AM_CONDITIONAL after PKG_WITH_MODULES
+dnl check._[VARIABLE-PREFIX] is exported as make variable.
+AC_DEFUN([PKG_HAVE_WITH_MODULES],
+[
+PKG_WITH_MODULES([$1],[$2],,,[$3],[$4])
+
+AM_CONDITIONAL([HAVE_][$1],
+ [test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"])
+])dnl PKG_HAVE_WITH_MODULES
+
+dnl PKG_HAVE_DEFINE_WITH_MODULES(VARIABLE-PREFIX, MODULES,
+dnl [DESCRIPTION], [DEFAULT])
+dnl ------------------------------------------------------
+dnl
+dnl Convenience macro to run AM_CONDITIONAL and AC_DEFINE after
+dnl PKG_WITH_MODULES check. HAVE_[VARIABLE-PREFIX] is exported as make
+dnl and preprocessor variable.
+AC_DEFUN([PKG_HAVE_DEFINE_WITH_MODULES],
+[
+PKG_HAVE_WITH_MODULES([$1],[$2],[$3],[$4])
+
+AS_IF([test "$AS_TR_SH([with_]m4_tolower([$1]))" = "yes"],
+ [AC_DEFINE([HAVE_][$1], 1, [Enable ]m4_tolower([$1])[ support])])
+])dnl PKG_HAVE_DEFINE_WITH_MODULES
+
+# Copyright (C) 2002-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_AUTOMAKE_VERSION(VERSION)
+# ----------------------------
+# Automake X.Y traces this macro to ensure aclocal.m4 has been
+# generated from the m4 files accompanying Automake X.Y.
+# (This private macro should not be called outside this file.)
+AC_DEFUN([AM_AUTOMAKE_VERSION],
+[am__api_version='1.16'
+dnl Some users find AM_AUTOMAKE_VERSION and mistake it for a way to
+dnl require some minimum version. Point them to the right macro.
+m4_if([$1], [1.16.1], [],
+ [AC_FATAL([Do not call $0, use AM_INIT_AUTOMAKE([$1]).])])dnl
+])
+
+# _AM_AUTOCONF_VERSION(VERSION)
+# -----------------------------
+# aclocal traces this macro to find the Autoconf version.
+# This is a private macro too. Using m4_define simplifies
+# the logic in aclocal, which can simply ignore this definition.
+m4_define([_AM_AUTOCONF_VERSION], [])
+
+# AM_SET_CURRENT_AUTOMAKE_VERSION
+# -------------------------------
+# Call AM_AUTOMAKE_VERSION and AM_AUTOMAKE_VERSION so they can be traced.
+# This function is AC_REQUIREd by AM_INIT_AUTOMAKE.
+AC_DEFUN([AM_SET_CURRENT_AUTOMAKE_VERSION],
+[AM_AUTOMAKE_VERSION([1.16.1])dnl
+m4_ifndef([AC_AUTOCONF_VERSION],
+ [m4_copy([m4_PACKAGE_VERSION], [AC_AUTOCONF_VERSION])])dnl
+_AM_AUTOCONF_VERSION(m4_defn([AC_AUTOCONF_VERSION]))])
+
+# AM_AUX_DIR_EXPAND -*- Autoconf -*-
+
+# Copyright (C) 2001-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# For projects using AC_CONFIG_AUX_DIR([foo]), Autoconf sets
+# $ac_aux_dir to '$srcdir/foo'. In other projects, it is set to
+# '$srcdir', '$srcdir/..', or '$srcdir/../..'.
+#
+# Of course, Automake must honor this variable whenever it calls a
+# tool from the auxiliary directory. The problem is that $srcdir (and
+# therefore $ac_aux_dir as well) can be either absolute or relative,
+# depending on how configure is run. This is pretty annoying, since
+# it makes $ac_aux_dir quite unusable in subdirectories: in the top
+# source directory, any form will work fine, but in subdirectories a
+# relative path needs to be adjusted first.
+#
+# $ac_aux_dir/missing
+# fails when called from a subdirectory if $ac_aux_dir is relative
+# $top_srcdir/$ac_aux_dir/missing
+# fails if $ac_aux_dir is absolute,
+# fails when called from a subdirectory in a VPATH build with
+# a relative $ac_aux_dir
+#
+# The reason of the latter failure is that $top_srcdir and $ac_aux_dir
+# are both prefixed by $srcdir. In an in-source build this is usually
+# harmless because $srcdir is '.', but things will broke when you
+# start a VPATH build or use an absolute $srcdir.
+#
+# So we could use something similar to $top_srcdir/$ac_aux_dir/missing,
+# iff we strip the leading $srcdir from $ac_aux_dir. That would be:
+# am_aux_dir='\$(top_srcdir)/'`expr "$ac_aux_dir" : "$srcdir//*\(.*\)"`
+# and then we would define $MISSING as
+# MISSING="\${SHELL} $am_aux_dir/missing"
+# This will work as long as MISSING is not called from configure, because
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+END
+am__include="#"
+am__quote=
+# BSD make does it like this.
+echo '.include "confinc.mk" # ignored' > confmf.BSD
+# Other make implementations (GNU, Solaris 10, AIX) do it like this.
+echo 'include confinc.mk # ignored' > confmf.GNU
+_am_result=no
+for s in GNU BSD; do
+ AM_RUN_LOG([${MAKE-make} -f confmf.$s && cat confinc.out])
+ AS_CASE([$?:`cat confinc.out 2>/dev/null`],
+ ['0:this is the am__doit target'],
+ [AS_CASE([$s],
+ [BSD], [am__include='.include' am__quote='"'],
+ [am__include='include' am__quote=''])])
+ if test "$am__include" != "#"; then
+ _am_result="yes ($s style)"
+ break
+ fi
+done
+rm -f confinc.* confmf.*
+AC_MSG_RESULT([${_am_result}])
+AC_SUBST([am__include])])
+AC_SUBST([am__quote])])
+
+# Fake the existence of programs that GNU maintainers use. -*- Autoconf -*-
+
+# Copyright (C) 1997-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_MISSING_PROG(NAME, PROGRAM)
+# ------------------------------
+AC_DEFUN([AM_MISSING_PROG],
+[AC_REQUIRE([AM_MISSING_HAS_RUN])
+$1=${$1-"${am_missing_run}$2"}
+AC_SUBST($1)])
+
+# AM_MISSING_HAS_RUN
+# ------------------
+# Define MISSING if not defined so far and test if it is modern enough.
+# If it is, set am_missing_run to use it, otherwise, to nothing.
+AC_DEFUN([AM_MISSING_HAS_RUN],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+AC_REQUIRE_AUX_FILE([missing])dnl
+if test x"${MISSING+set}" != xset; then
+ case $am_aux_dir in
+ *\ * | *\ *)
+ MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
+ *)
+ MISSING="\${SHELL} $am_aux_dir/missing" ;;
+ esac
+fi
+# Use eval to expand $SHELL
+if eval "$MISSING --is-lightweight"; then
+ am_missing_run="$MISSING "
+else
+ am_missing_run=
+ AC_MSG_WARN(['missing' script is too old or missing])
+fi
+])
+
+# Helper functions for option handling. -*- Autoconf -*-
+
+# Copyright (C) 2001-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_MANGLE_OPTION(NAME)
+# -----------------------
+AC_DEFUN([_AM_MANGLE_OPTION],
+[[_AM_OPTION_]m4_bpatsubst($1, [[^a-zA-Z0-9_]], [_])])
+
+# _AM_SET_OPTION(NAME)
+# --------------------
+# Set option NAME. Presently that only means defining a flag for this option.
+AC_DEFUN([_AM_SET_OPTION],
+[m4_define(_AM_MANGLE_OPTION([$1]), [1])])
+
+# _AM_SET_OPTIONS(OPTIONS)
+# ------------------------
+# OPTIONS is a space-separated list of Automake options.
+AC_DEFUN([_AM_SET_OPTIONS],
+[m4_foreach_w([_AM_Option], [$1], [_AM_SET_OPTION(_AM_Option)])])
+
+# _AM_IF_OPTION(OPTION, IF-SET, [IF-NOT-SET])
+# -------------------------------------------
+# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
+AC_DEFUN([_AM_IF_OPTION],
+[m4_ifset(_AM_MANGLE_OPTION([$1]), [$2], [$3])])
+
+# Copyright (C) 1999-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_PROG_CC_C_O
+# ---------------
+# Like AC_PROG_CC_C_O, but changed for automake. We rewrite AC_PROG_CC
+# to automatically call this.
+AC_DEFUN([_AM_PROG_CC_C_O],
+[AC_REQUIRE([AM_AUX_DIR_EXPAND])dnl
+AC_REQUIRE_AUX_FILE([compile])dnl
+AC_LANG_PUSH([C])dnl
+AC_CACHE_CHECK(
+ [whether $CC understands -c and -o together],
+ [am_cv_prog_cc_c_o],
+ [AC_LANG_CONFTEST([AC_LANG_PROGRAM([])])
+ # Make sure it works both with $CC and with simple cc.
+ # Following AC_PROG_CC_C_O, we do the test twice because some
+ # compilers refuse to overwrite an existing .o file with -o,
+ # though they will create one.
+ am_cv_prog_cc_c_o=yes
+ for am_i in 1 2; do
+ if AM_RUN_LOG([$CC -c conftest.$ac_ext -o conftest2.$ac_objext]) \
+ && test -f conftest2.$ac_objext; then
+ : OK
+ else
+ am_cv_prog_cc_c_o=no
+ break
+ fi
+ done
+ rm -f core conftest*
+ unset am_i])
+if test "$am_cv_prog_cc_c_o" != yes; then
+ # Losing compiler, so override with the script.
+ # FIXME: It is wrong to rewrite CC.
+ # But if we don't then we get into trouble of one sort or another.
+ # A longer-term fix would be to have automake use am__CC in this case,
+ # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
+ CC="$am_aux_dir/compile $CC"
+fi
+AC_LANG_POP([C])])
+
+# For backward compatibility.
+AC_DEFUN_ONCE([AM_PROG_CC_C_O], [AC_REQUIRE([AC_PROG_CC])])
+
+# Copyright (C) 2001-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_RUN_LOG(COMMAND)
+# -------------------
+# Run COMMAND, save the exit status in ac_status, and log it.
+# (This has been adapted from Autoconf's _AC_RUN_LOG macro.)
+AC_DEFUN([AM_RUN_LOG],
+[{ echo "$as_me:$LINENO: $1" >&AS_MESSAGE_LOG_FD
+ ($1) >&AS_MESSAGE_LOG_FD 2>&AS_MESSAGE_LOG_FD
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+ (exit $ac_status); }])
+
+# Check to make sure that the build environment is sane. -*- Autoconf -*-
+
+# Copyright (C) 1996-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_SANITY_CHECK
+# ---------------
+AC_DEFUN([AM_SANITY_CHECK],
+[AC_MSG_CHECKING([whether build environment is sane])
+# Reject unsafe characters in $srcdir or the absolute working directory
+# name. Accept space and tab only in the latter.
+am_lf='
+'
+case `pwd` in
+ *[[\\\"\#\$\&\'\`$am_lf]]*)
+ AC_MSG_ERROR([unsafe absolute working directory name]);;
+esac
+case $srcdir in
+ *[[\\\"\#\$\&\'\`$am_lf\ \ ]]*)
+ AC_MSG_ERROR([unsafe srcdir value: '$srcdir']);;
+esac
+
+# Do 'set' in a subshell so we don't clobber the current shell's
+# arguments. Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+ am_has_slept=no
+ for am_try in 1 2; do
+ echo "timestamp, slept: $am_has_slept" > conftest.file
+ set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
+ if test "$[*]" = "X"; then
+ # -L didn't work.
+ set X `ls -t "$srcdir/configure" conftest.file`
+ fi
+ if test "$[*]" != "X $srcdir/configure conftest.file" \
+ && test "$[*]" != "X conftest.file $srcdir/configure"; then
+
+ # If neither matched, then we have a broken ls. This can happen
+ # if, for instance, CONFIG_SHELL is bash and it inherits a
+ # broken ls alias from the environment. This has actually
+ # happened. Such a system could not be considered "sane".
+ AC_MSG_ERROR([ls -t appears to fail. Make sure there is not a broken
+ alias in your environment])
+ fi
+ if test "$[2]" = conftest.file || test $am_try -eq 2; then
+ break
+ fi
+ # Just in case.
+ sleep 1
+ am_has_slept=yes
+ done
+ test "$[2]" = conftest.file
+ )
+then
+ # Ok.
+ :
+else
+ AC_MSG_ERROR([newly created file is older than distributed files!
+Check your system clock])
+fi
+AC_MSG_RESULT([yes])
+# If we didn't sleep, we still need to ensure time stamps of config.status and
+# generated files are strictly newer.
+am_sleep_pid=
+if grep 'slept: no' conftest.file >/dev/null 2>&1; then
+ ( sleep 1 ) &
+ am_sleep_pid=$!
+fi
+AC_CONFIG_COMMANDS_PRE(
+ [AC_MSG_CHECKING([that generated files are newer than configure])
+ if test -n "$am_sleep_pid"; then
+ # Hide warnings about reused PIDs.
+ wait $am_sleep_pid 2>/dev/null
+ fi
+ AC_MSG_RESULT([done])])
+rm -f conftest.file
+])
+
+# Copyright (C) 2009-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_SILENT_RULES([DEFAULT])
+# --------------------------
+# Enable less verbose build rules; with the default set to DEFAULT
+# ("yes" being less verbose, "no" or empty being verbose).
+AC_DEFUN([AM_SILENT_RULES],
+[AC_ARG_ENABLE([silent-rules], [dnl
+AS_HELP_STRING(
+ [--enable-silent-rules],
+ [less verbose build output (undo: "make V=1")])
+AS_HELP_STRING(
+ [--disable-silent-rules],
+ [verbose build output (undo: "make V=0")])dnl
+])
+case $enable_silent_rules in @%:@ (((
+ yes) AM_DEFAULT_VERBOSITY=0;;
+ no) AM_DEFAULT_VERBOSITY=1;;
+ *) AM_DEFAULT_VERBOSITY=m4_if([$1], [yes], [0], [1]);;
+esac
+dnl
+dnl A few 'make' implementations (e.g., NonStop OS and NextStep)
+dnl do not support nested variable expansions.
+dnl See automake bug#9928 and bug#10237.
+am_make=${MAKE-make}
+AC_CACHE_CHECK([whether $am_make supports nested variables],
+ [am_cv_make_support_nested_variables],
+ [if AS_ECHO([['TRUE=$(BAR$(V))
+BAR0=false
+BAR1=true
+V=1
+am__doit:
+ @$(TRUE)
+.PHONY: am__doit']]) | $am_make -f - >/dev/null 2>&1; then
+ am_cv_make_support_nested_variables=yes
+else
+ am_cv_make_support_nested_variables=no
+fi])
+if test $am_cv_make_support_nested_variables = yes; then
+ dnl Using '$V' instead of '$(V)' breaks IRIX make.
+ AM_V='$(V)'
+ AM_DEFAULT_V='$(AM_DEFAULT_VERBOSITY)'
+else
+ AM_V=$AM_DEFAULT_VERBOSITY
+ AM_DEFAULT_V=$AM_DEFAULT_VERBOSITY
+fi
+AC_SUBST([AM_V])dnl
+AM_SUBST_NOTMAKE([AM_V])dnl
+AC_SUBST([AM_DEFAULT_V])dnl
+AM_SUBST_NOTMAKE([AM_DEFAULT_V])dnl
+AC_SUBST([AM_DEFAULT_VERBOSITY])dnl
+AM_BACKSLASH='\'
+AC_SUBST([AM_BACKSLASH])dnl
+_AM_SUBST_NOTMAKE([AM_BACKSLASH])dnl
+])
+
+# Copyright (C) 2001-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# AM_PROG_INSTALL_STRIP
+# ---------------------
+# One issue with vendor 'install' (even GNU) is that you can't
+# specify the program used to strip binaries. This is especially
+# annoying in cross-compiling environments, where the build's strip
+# is unlikely to handle the host's binaries.
+# Fortunately install-sh will honor a STRIPPROG variable, so we
+# always use install-sh in "make install-strip", and initialize
+# STRIPPROG with the value of the STRIP variable (set by the user).
+AC_DEFUN([AM_PROG_INSTALL_STRIP],
+[AC_REQUIRE([AM_PROG_INSTALL_SH])dnl
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip". However 'strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the 'STRIP' environment variable to overrule this program.
+dnl Don't test for $cross_compiling = yes, because it might be 'maybe'.
+if test "$cross_compiling" != no; then
+ AC_CHECK_TOOL([STRIP], [strip], :)
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+AC_SUBST([INSTALL_STRIP_PROGRAM])])
+
+# Copyright (C) 2006-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_SUBST_NOTMAKE(VARIABLE)
+# ---------------------------
+# Prevent Automake from outputting VARIABLE = @VARIABLE@ in Makefile.in.
+# This macro is traced by Automake.
+AC_DEFUN([_AM_SUBST_NOTMAKE])
+
+# AM_SUBST_NOTMAKE(VARIABLE)
+# --------------------------
+# Public sister of _AM_SUBST_NOTMAKE.
+AC_DEFUN([AM_SUBST_NOTMAKE], [_AM_SUBST_NOTMAKE($@)])
+
+# Check how to create a tarball. -*- Autoconf -*-
+
+# Copyright (C) 2004-2018 Free Software Foundation, Inc.
+#
+# This file is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# _AM_PROG_TAR(FORMAT)
+# --------------------
+# Check how to create a tarball in format FORMAT.
+# FORMAT should be one of 'v7', 'ustar', or 'pax'.
+#
+# Substitute a variable $(am__tar) that is a command
+# writing to stdout a FORMAT-tarball containing the directory
+# $tardir.
+# tardir=directory && $(am__tar) > result.tar
+#
+# Substitute a variable $(am__untar) that extract such
+# a tarball read from stdin.
+# $(am__untar) < result.tar
+#
+AC_DEFUN([_AM_PROG_TAR],
+[# Always define AMTAR for backward compatibility. Yes, it's still used
+# in the wild :-( We should find a proper way to deprecate it ...
+AC_SUBST([AMTAR], ['$${TAR-tar}'])
+
+# We'll loop over all known methods to create a tar archive until one works.
+_am_tools='gnutar m4_if([$1], [ustar], [plaintar]) pax cpio none'
+
+m4_if([$1], [v7],
+ [am__tar='$${TAR-tar} chof - "$$tardir"' am__untar='$${TAR-tar} xf -'],
+
+ [m4_case([$1],
+ [ustar],
+ [# The POSIX 1988 'ustar' format is defined with fixed-size fields.
+ # There is notably a 21 bits limit for the UID and the GID. In fact,
+ # the 'pax' utility can hang on bigger UID/GID (see automake bug#8343
+ # and bug#13588).
+ am_max_uid=2097151 # 2^21 - 1
+ am_max_gid=$am_max_uid
+ # The $UID and $GID variables are not portable, so we need to resort
+ # to the POSIX-mandated id(1) utility. Errors in the 'id' calls
+ # below are definitely unexpected, so allow the users to see them
+ # (that is, avoid stderr redirection).
+ am_uid=`id -u || echo unknown`
+ am_gid=`id -g || echo unknown`
+ AC_MSG_CHECKING([whether UID '$am_uid' is supported by ustar format])
+ if test $am_uid -le $am_max_uid; then
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ _am_tools=none
+ fi
+ AC_MSG_CHECKING([whether GID '$am_gid' is supported by ustar format])
+ if test $am_gid -le $am_max_gid; then
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ _am_tools=none
+ fi],
+
+ [pax],
+ [],
+
+ [m4_fatal([Unknown tar format])])
+
+ AC_MSG_CHECKING([how to create a $1 tar archive])
+
+ # Go ahead even if we have the value already cached. We do so because we
+ # need to set the values for the 'am__tar' and 'am__untar' variables.
+ _am_tools=${am_cv_prog_tar_$1-$_am_tools}
+
+ for _am_tool in $_am_tools; do
+ case $_am_tool in
+ gnutar)
+ for _am_tar in tar gnutar gtar; do
+ AM_RUN_LOG([$_am_tar --version]) && break
+ done
+ am__tar="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$$tardir"'
+ am__tar_="$_am_tar --format=m4_if([$1], [pax], [posix], [$1]) -chf - "'"$tardir"'
+ am__untar="$_am_tar -xf -"
+ ;;
+ plaintar)
+ # Must skip GNU tar: if it does not support --format= it doesn't create
+ # ustar tarball either.
+ (tar --version) >/dev/null 2>&1 && continue
+ am__tar='tar chf - "$$tardir"'
+ am__tar_='tar chf - "$tardir"'
+ am__untar='tar xf -'
+ ;;
+ pax)
+ am__tar='pax -L -x $1 -w "$$tardir"'
+ am__tar_='pax -L -x $1 -w "$tardir"'
+ am__untar='pax -r'
+ ;;
+ cpio)
+ am__tar='find "$$tardir" -print | cpio -o -H $1 -L'
+ am__tar_='find "$tardir" -print | cpio -o -H $1 -L'
+ am__untar='cpio -i -H $1 -d'
+ ;;
+ none)
+ am__tar=false
+ am__tar_=false
+ am__untar=false
+ ;;
+ esac
+
+ # If the value was cached, stop now. We just wanted to have am__tar
+ # and am__untar set.
+ test -n "${am_cv_prog_tar_$1}" && break
+
+ # tar/untar a dummy directory, and stop if the command works.
+ rm -rf conftest.dir
+ mkdir conftest.dir
+ echo GrepMe > conftest.dir/file
+ AM_RUN_LOG([tardir=conftest.dir && eval $am__tar_ >conftest.tar])
+ rm -rf conftest.dir
+ if test -s conftest.tar; then
+ AM_RUN_LOG([$am__untar <conftest.tar])
+ AM_RUN_LOG([cat conftest.dir/file])
+ grep GrepMe conftest.dir/file >/dev/null 2>&1 && break
+ fi
+ done
+ rm -rf conftest.dir
+
+ AC_CACHE_VAL([am_cv_prog_tar_$1], [am_cv_prog_tar_$1=$_am_tool])
+ AC_MSG_RESULT([$am_cv_prog_tar_$1])])
+
+AC_SUBST([am__tar])
+AC_SUBST([am__untar])
+]) # _AM_PROG_TAR
+
+m4_include([m4/ax_pthread.m4])
+m4_include([m4/libtool.m4])
+m4_include([m4/ltoptions.m4])
+m4_include([m4/ltsugar.m4])
+m4_include([m4/ltversion.m4])
+m4_include([m4/lt~obsolete.m4])
+m4_include([m4/ocaml.m4])
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = README
+
+if HAVE_BASH_COMPLETION
+
+dist_bashcomp_DATA = nbdkit
+
+endif
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+ true; \
+ else \
+ false; \
+ fi; \
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
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+.NOEXPORT:
--- /dev/null
+This directory contains the scripts for tab-completing commands in
+bash. Note these new-style demand-loaded scripts require
+bash-completion >= 1.99.
+
+Tip: To test the bash completions without having to install them,
+simply start a new shell and do:
+
+ source ./bash/nbdkit; PATH=$PWD:$PATH
--- /dev/null
+# nbdkit bash completion script -*- shell-script -*-
+# Copyright (C) 2010-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+_nbdkit_list_plugins ()
+{
+ local plugindir
+ plugindir="$(
+ nbdkit --dump-config | grep ^plugindir= | sed 's/^plugindir=//'
+ )"
+ ls -1 "$plugindir" | sed 's/^nbdkit-//' | sed 's/-plugin.*//'
+}
+
+_nbdkit_list_filters ()
+{
+ local filterdir
+ filterdir="$(
+ nbdkit --dump-config | grep ^filterdir= | sed 's/^filterdir=//'
+ )"
+ ls -1 "$filterdir" | sed 's/^nbdkit-//' | sed 's/-filter.*//'
+}
+
+# This handler function is called when the user presses tab.
+_nbdkit ()
+{
+ local cur prev words cword split
+ local shortopts longopts plugin plugins filters args i
+
+ _init_completion -s || return
+
+ # Did we get the plugin name yet?
+ # This is only a heuristic because it can be confused by
+ # long opt parameters with an arguments. XXX
+ plugin=
+ for (( i=1; i < ${#words[@]}; ++i)) ; do
+ if [[ "${words[i]}" =~ ^[a-zA-Z0-9]+$ ]]; then
+ plugin="${words[i]}"
+ break
+ fi
+ done
+
+ # Previous item on the current line is a completable flag or plugin name?
+ case "$prev" in
+ --filter)
+ filters="$(_nbdkit_list_filters)"
+ COMPREPLY=( $(compgen -W "$filters" "$cur") )
+ return ;;
+ --tls)
+ COMPREPLY=( $(compgen -W "off on require" "$cur") )
+ return ;;
+ # Could complete -u and -g options too. XXX
+ esac
+
+ # Current item is an option we can expand?
+ case "$cur" in
+ --*)
+ longopts="$(nbdkit --long-options)"
+ COMPREPLY=( $(compgen -W "$longopts" -- "$cur") )
+ return ;;
+ -*)
+ shortopts="$(nbdkit --short-options)"
+ longopts="$(nbdkit --long-options)"
+ COMPREPLY=( $(compgen -W "$shortopts $longopts" -- "$cur") )
+ return ;;
+ *)
+ if [ "$plugin" = "" ] || [ "$plugin" = "$cur" ]; then
+ # Complete plugin name.
+ plugins="$(_nbdkit_list_plugins)"
+ COMPREPLY=( $(compgen -W "$plugins" "$cur") )
+ return
+ else
+ # Complete plugin args.
+ args="$(
+ nbdkit $plugin --help 2>/dev/null |
+ grep -E '^[-a-z0-9]+=' | sed 's/=.*/=/'
+ )"
+ COMPREPLY=( $(compgen -W "$args" "$cur") )
+ return
+ fi
+ ;;
+ esac
+}
+
+# Install the handler function.
+complete -o default -F _nbdkit nbdkit
--- /dev/null
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+plugindir = $(libdir)/nbdkit/plugins
+filterdir = $(libdir)/nbdkit/filters
+
+CLEANFILES = *~ *.cmi *.cmx *.cmxa *.so
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+noinst_LTLIBRARIES = libbitmap.la
+
+libbitmap_la_SOURCES = \
+ bitmap.c \
+ bitmap.h
+libbitmap_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include
+libbitmap_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+
+# Unit tests.
+
+TESTS = test-bitmap
+check_PROGRAMS = test-bitmap
+
+test_bitmap_SOURCES = test-bitmap.c bitmap.c bitmap.h
+test_bitmap_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include
+test_bitmap_CFLAGS = \
+ $(WARNINGS_CFLAGS)
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
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+ else \
+ false; \
+ fi; \
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+ case $${target_option-} in \
+ ?) ;; \
+ *) echo "am__make_running_with_option: internal error: invalid" \
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+ exit 1;; \
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+ if $(am__is_gnu_make); then \
+ sane_makeflags=$$MFLAGS; \
+ else \
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+
+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+
+#include <nbdkit-plugin.h>
+
+#include "bitmap.h"
+#include "rounding.h"
+#include "nextnonzero.h"
+
+int
+bitmap_resize (struct bitmap *bm, uint64_t new_size)
+{
+ uint8_t *new_bitmap;
+ const size_t old_bm_size = bm->size;
+ uint64_t new_bm_size_u64;
+ size_t new_bm_size;
+
+ new_bm_size_u64 = DIV_ROUND_UP (new_size,
+ bm->blksize * UINT64_C(8) / bm->bpb);
+ if (new_bm_size_u64 > SIZE_MAX) {
+ nbdkit_error ("bitmap too large for this architecture");
+ return -1;
+ }
+ new_bm_size = (size_t) new_bm_size_u64;
+
+ new_bitmap = realloc (bm->bitmap, new_bm_size);
+ if (new_bitmap == NULL) {
+ nbdkit_error ("realloc: %m");
+ return -1;
+ }
+ bm->bitmap = new_bitmap;
+ bm->size = new_bm_size;
+ if (old_bm_size < new_bm_size)
+ memset (&bm->bitmap[old_bm_size], 0, new_bm_size-old_bm_size);
+
+ nbdkit_debug ("bitmap resized to %zu bytes", new_bm_size);
+
+ return 0;
+}
+
+int64_t
+bitmap_next (const struct bitmap *bm, uint64_t blk)
+{
+ uint64_t limit = bm->size * bm->ibpb;
+ const uint8_t *p;
+
+ /* Align to the next byte boundary. */
+ for (; blk < limit && (blk & (bm->ibpb-1)) != 0; ++blk) {
+ if (bitmap_get_blk (bm, blk, 0) != 0)
+ return blk;
+ }
+ if (blk == limit)
+ return -1;
+
+ /* Now we're at a byte boundary we can use a fast string function to
+ * find the next non-zero byte.
+ */
+ p = &bm->bitmap[blk >> (3 - bm->bitshift)];
+ p = (const uint8_t *) next_non_zero ((const char *) p,
+ &bm->bitmap[bm->size] - p);
+ if (p == NULL)
+ return -1;
+
+ /* Now check the non-zero byte to find out which bit (ie. block) is set. */
+ blk = (p - bm->bitmap) << (3 - bm->bitshift);
+ for (; blk < limit; ++blk) {
+ if (bitmap_get_blk (bm, blk, 0) != 0)
+ return blk;
+ }
+
+ /* Should never be reached. */
+ abort ();
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* This is a very simple structure for creating a bitmap associated
+ * with a virtual disk. 1, 2, 4 or 8 bits can be associated with each
+ * block of the disk. You can choose the number of bits and block
+ * size when creating the bitmap. Entries in the bitmap are
+ * initialized to 0.
+ */
+
+#ifndef NBDKIT_BITMAP_H
+#define NBDKIT_BITMAP_H
+
+#include <stdint.h>
+#include <string.h>
+#include <assert.h>
+
+#include <nbdkit-plugin.h>
+
+#include "ispowerof2.h"
+
+/* This is the bitmap structure. */
+struct bitmap {
+ unsigned blksize; /* Block size. */
+ uint8_t bpb; /* Bits per block (1, 2, 4, 8 only). */
+ /* bpb = 1 << bitshift ibpb = 8 / bpb
+ 1 0 8
+ 2 1 4
+ 4 2 2
+ 8 3 1
+ */
+ uint8_t bitshift, ibpb;
+
+ uint8_t *bitmap; /* The bitmap. */
+ size_t size; /* Size of bitmap in bytes. */
+};
+
+static inline void __attribute__((__nonnull__ (1)))
+bitmap_init (struct bitmap *bm, unsigned blksize, unsigned bpb)
+{
+ assert (is_power_of_2 (blksize));
+ bm->blksize = blksize;
+
+ /* bpb can be 1, 2, 4 or 8 only. */
+ bm->bpb = bpb;
+ switch (bpb) {
+ case 1: bm->bitshift = 0; break;
+ case 2: bm->bitshift = 1; break;
+ case 4: bm->bitshift = 2; break;
+ case 8: bm->bitshift = 3; break;
+ default: abort ();
+ }
+ bm->ibpb = 8/bpb;
+
+ bm->bitmap = NULL;
+ bm->size = 0;
+}
+
+/* Only frees the bitmap itself, since it is assumed that the struct
+ * bitmap is statically allocated.
+ */
+static inline void
+bitmap_free (struct bitmap *bm)
+{
+ if (bm)
+ free (bm->bitmap);
+}
+
+/* Resize the bitmap to the virtual disk size in bytes.
+ * Returns -1 on error, setting nbdkit_error.
+ */
+extern int bitmap_resize (struct bitmap *bm, uint64_t new_size)
+ __attribute__((__nonnull__ (1)));
+
+/* Clear the bitmap (set everything to zero). */
+static inline void __attribute__((__nonnull__ (1)))
+bitmap_clear (struct bitmap *bm)
+{
+ memset (bm->bitmap, 0, bm->size);
+}
+
+/* This macro calculates the byte offset in the bitmap and which
+ * bit/mask we are addressing within that byte.
+ *
+ * bpb blk_offset blk_bit mask
+ * 1 blk >> 3 0,1,2,...,7 any single bit
+ * 2 blk >> 2 0, 2, 4 or 6 0x03, 0x0c, 0x30 or 0xc0
+ * 4 blk >> 1 0 or 4 0x0f or 0xf0
+ * 8 blk >> 0 always 0 always 0xff
+ */
+#define BITMAP_OFFSET_BIT_MASK(bm, blk) \
+ uint64_t blk_offset = (blk) >> (3 - (bm)->bitshift); \
+ unsigned blk_bit = (bm)->bpb * ((blk) & ((bm)->ibpb - 1)); \
+ unsigned mask = ((1 << (bm)->bpb) - 1) << blk_bit
+
+/* Return the bit(s) associated with the given block.
+ * If the request is out of range, returns the default value.
+ */
+static inline unsigned __attribute__((__nonnull__ (1)))
+bitmap_get_blk (const struct bitmap *bm, uint64_t blk, unsigned default_)
+{
+ BITMAP_OFFSET_BIT_MASK (bm, blk);
+
+ if (blk_offset >= bm->size) {
+ nbdkit_debug ("bitmap_get: block number is out of range");
+ return default_;
+ }
+
+ return (bm->bitmap[blk_offset] & mask) >> blk_bit;
+}
+
+/* As above but works with virtual disk offset in bytes. */
+static inline unsigned __attribute__((__nonnull__ (1)))
+bitmap_get (const struct bitmap *bm, uint64_t offset, unsigned default_)
+{
+ return bitmap_get_blk (bm, offset / bm->blksize, default_);
+}
+
+/* Set the bit(s) associated with the given block.
+ * If out of range, it is ignored.
+ */
+static inline void __attribute__((__nonnull__ (1)))
+bitmap_set_blk (const struct bitmap *bm, uint64_t blk, unsigned v)
+{
+ BITMAP_OFFSET_BIT_MASK (bm, blk);
+
+ if (blk_offset >= bm->size) {
+ nbdkit_debug ("bitmap_set: block number is out of range");
+ return;
+ }
+
+ bm->bitmap[blk_offset] &= ~mask;
+ bm->bitmap[blk_offset] |= v << blk_bit;
+}
+
+/* As above bit works with virtual disk offset in bytes. */
+static inline void __attribute__((__nonnull__ (1)))
+bitmap_set (const struct bitmap *bm, uint64_t offset, unsigned v)
+{
+ return bitmap_set_blk (bm, offset / bm->blksize, v);
+}
+
+/* Iterate over blocks represented in the bitmap. */
+#define bitmap_for(bm, /* uint64_t */ blknum) \
+ for ((blknum) = 0; (blknum) < (bm)->size * (bm)->ibpb; ++(blknum))
+
+/* Find the next non-zero block in the bitmap, starting at ‘blk’.
+ * Returns -1 if the bitmap is all zeroes from blk to the end of the
+ * bitmap.
+ */
+extern int64_t bitmap_next (const struct bitmap *bm, uint64_t blk)
+ __attribute__((__nonnull__ (1)));
+
+#endif /* NBDKIT_BITMAP_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* Unit tests of the bitmap code. */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdarg.h>
+#include <string.h>
+#include <errno.h>
+#include <assert.h>
+
+#include <nbdkit-plugin.h>
+
+#include "bitmap.h"
+
+static void
+test (int bpb, int blksize)
+{
+ struct bitmap bm;
+ const int nr_blocks = 1000;
+ int blks[] =
+ {
+ 1, 2, 3, 10, 12,
+ 90, 91, 92, 93, 94, 99,
+ 800, 801, 802, 803,
+ 902, 903, 905, 907, 911, 913, 917, 919, 923, 929,
+ 999
+ };
+ unsigned v, vexp;
+ size_t i, j;
+
+ printf ("bpb = %d, blksize = %d\n", bpb, blksize);
+ fflush (stdout);
+
+ bitmap_init (&bm, blksize, bpb);
+ if (bitmap_resize (&bm, nr_blocks * blksize) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Set some bits at known block numbers. */
+ for (j = 0; j < sizeof blks / sizeof blks[0]; ++j) {
+ v = (j & 1) == 0 ? 1 : (1<<bpb) - 1;
+ bitmap_set_blk (&bm, blks[j], v);
+ }
+
+ /* Check the values of all bits. */
+ for (i = j = 0; i < nr_blocks; ++i) {
+ if (i == blks[j]) { /* previously set bit */
+ vexp = (j & 1) == 0 ? 1 : (1<<bpb) - 1;
+ v = bitmap_get_blk (&bm, blks[j], 0);
+ assert (v == vexp);
+ ++j;
+ }
+ else { /* unset bit, except it to be zero */
+ v = bitmap_get_blk (&bm, i, 0);
+ assert (v == 0);
+ }
+ }
+
+ /* Same as above, but using bitmap_for macro. */
+ j = 0;
+ bitmap_for (&bm, i) {
+ if (i == blks[j]) { /* previously set bit */
+ vexp = (j & 1) == 0 ? 1 : (1<<bpb) - 1;
+ v = bitmap_get_blk (&bm, blks[j], 0);
+ assert (v == vexp);
+ ++j;
+ }
+ else { /* unset bit, expect it to be zero */
+ v = bitmap_get_blk (&bm, i, 0);
+ assert (v == 0);
+ }
+ }
+
+ /* Use bitmap_next to iterate over the non-zero entries in the bitmap. */
+ i = bitmap_next (&bm, 0);
+ j = 0;
+ while (i != -1) {
+ assert (i == blks[j]);
+ vexp = (j & 1) == 0 ? 1 : (1<<bpb) - 1;
+ v = bitmap_get_blk (&bm, i, 0);
+ assert (v == vexp);
+ i = bitmap_next (&bm, i+1);
+ ++j;
+ }
+
+ bitmap_free (&bm);
+}
+
+int
+main (void)
+{
+ int bpb;
+ size_t i;
+ int blksizes[] = { 1, 2, 4, 1024, 2048, 4096, 16384 };
+
+ /* Try the tests at each bpb setting and at a range of block sizes. */
+ for (bpb = 1; bpb <= 8; bpb <<= 1)
+ for (i = 0; i < sizeof blksizes / sizeof blksizes[0]; ++i)
+ test (bpb, blksizes[i]);
+
+ exit (EXIT_SUCCESS);
+}
+
+/* The bitmap code uses nbdkit_debug, normally provided by the main
+ * server program. So we have to provide it here.
+ */
+void
+nbdkit_debug (const char *fs, ...)
+{
+ /* do nothing */
+}
+
+/* Same for nbdkit_error. */
+void
+nbdkit_error (const char *fs, ...)
+{
+ int err = errno;
+ va_list args;
+
+ va_start (args, fs);
+ fprintf (stderr, "error: ");
+ errno = err; /* Must restore in case fs contains %m */
+ vfprintf (stderr, fs, args);
+ fprintf (stderr, "\n");
+ va_end (args);
+
+ errno = err;
+}
--- /dev/null
+# nbdkit
+# Copyright (C) 2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+noinst_LTLIBRARIES = libgpt.la
+
+libgpt_la_SOURCES = \
+ efi-crc32.c \
+ efi-crc32.h \
+ gpt.h
+libgpt_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
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+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
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+# This Makefile.in is free software; the Free Software Foundation
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+# with or without modifications, as long as this notice is preserved.
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+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* This code was taken from parted and indirectly from other sources
+ * as you can see from the messages below. The license is compatible
+ * with the permissive license used in nbdkit. - RWMJ 2018-09-16
+ */
+
+/*
+ * Dec 5, 2000 Matt Domsch <Matt_Domsch@dell.com>
+ * - Copied crc32.c from the linux/drivers/net/cipe directory.
+ * - Now pass seed as an arg
+ * - changed unsigned long to uint32_t, added #include<stdint.h>
+ * - changed len to be an unsigned long
+ * - changed crc32val to be a register
+ * - License remains unchanged! It's still GPL-compatable!
+ */
+
+ /* ============================================================= */
+ /* COPYRIGHT (C) 1986 Gary S. Brown. You may use this program, or */
+ /* code or tables extracted from it, as desired without restriction. */
+ /* */
+ /* First, the polynomial itself and its table of feedback terms. The */
+ /* polynomial is */
+ /* X^32+X^26+X^23+X^22+X^16+X^12+X^11+X^10+X^8+X^7+X^5+X^4+X^2+X^1+X^0 */
+ /* */
+ /* Note that we take it "backwards" and put the highest-order term in */
+ /* the lowest-order bit. The X^32 term is "implied"; the LSB is the */
+ /* X^31 term, etc. The X^0 term (usually shown as "+1") results in */
+ /* the MSB being 1. */
+ /* */
+ /* Note that the usual hardware shift register implementation, which */
+ /* is what we're using (we're merely optimizing it by doing eight-bit */
+ /* chunks at a time) shifts bits into the lowest-order term. In our */
+ /* implementation, that means shifting towards the right. Why do we */
+ /* do it this way? Because the calculated CRC must be transmitted in */
+ /* order from highest-order term to lowest-order term. UARTs transmit */
+ /* characters in order from LSB to MSB. By storing the CRC this way, */
+ /* we hand it to the UART in the order low-byte to high-byte; the UART */
+ /* sends each low-bit to hight-bit; and the result is transmission bit */
+ /* by bit from highest- to lowest-order term without requiring any bit */
+ /* shuffling on our part. Reception works similarly. */
+ /* */
+ /* The feedback terms table consists of 256, 32-bit entries. Notes: */
+ /* */
+ /* The table can be generated at runtime if desired; code to do so */
+ /* is shown later. It might not be obvious, but the feedback */
+ /* terms simply represent the results of eight shift/xor opera- */
+ /* tions for all combinations of data and CRC register values. */
+ /* */
+ /* The values must be right-shifted by eight bits by the "updcrc" */
+ /* logic; the shift must be unsigned (bring in zeroes). On some */
+ /* hardware you could probably optimize the shift in assembler by */
+ /* using byte-swap instructions. */
+ /* polynomial $edb88320 */
+ /* */
+ /* -------------------------------------------------------------------- */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdint.h>
+
+#include "efi-crc32.h"
+
+static const uint32_t crc32_tab[] = {
+ 0x00000000L, 0x77073096L, 0xee0e612cL, 0x990951baL, 0x076dc419L,
+ 0x706af48fL, 0xe963a535L, 0x9e6495a3L, 0x0edb8832L, 0x79dcb8a4L,
+ 0xe0d5e91eL, 0x97d2d988L, 0x09b64c2bL, 0x7eb17cbdL, 0xe7b82d07L,
+ 0x90bf1d91L, 0x1db71064L, 0x6ab020f2L, 0xf3b97148L, 0x84be41deL,
+ 0x1adad47dL, 0x6ddde4ebL, 0xf4d4b551L, 0x83d385c7L, 0x136c9856L,
+ 0x646ba8c0L, 0xfd62f97aL, 0x8a65c9ecL, 0x14015c4fL, 0x63066cd9L,
+ 0xfa0f3d63L, 0x8d080df5L, 0x3b6e20c8L, 0x4c69105eL, 0xd56041e4L,
+ 0xa2677172L, 0x3c03e4d1L, 0x4b04d447L, 0xd20d85fdL, 0xa50ab56bL,
+ 0x35b5a8faL, 0x42b2986cL, 0xdbbbc9d6L, 0xacbcf940L, 0x32d86ce3L,
+ 0x45df5c75L, 0xdcd60dcfL, 0xabd13d59L, 0x26d930acL, 0x51de003aL,
+ 0xc8d75180L, 0xbfd06116L, 0x21b4f4b5L, 0x56b3c423L, 0xcfba9599L,
+ 0xb8bda50fL, 0x2802b89eL, 0x5f058808L, 0xc60cd9b2L, 0xb10be924L,
+ 0x2f6f7c87L, 0x58684c11L, 0xc1611dabL, 0xb6662d3dL, 0x76dc4190L,
+ 0x01db7106L, 0x98d220bcL, 0xefd5102aL, 0x71b18589L, 0x06b6b51fL,
+ 0x9fbfe4a5L, 0xe8b8d433L, 0x7807c9a2L, 0x0f00f934L, 0x9609a88eL,
+ 0xe10e9818L, 0x7f6a0dbbL, 0x086d3d2dL, 0x91646c97L, 0xe6635c01L,
+ 0x6b6b51f4L, 0x1c6c6162L, 0x856530d8L, 0xf262004eL, 0x6c0695edL,
+ 0x1b01a57bL, 0x8208f4c1L, 0xf50fc457L, 0x65b0d9c6L, 0x12b7e950L,
+ 0x8bbeb8eaL, 0xfcb9887cL, 0x62dd1ddfL, 0x15da2d49L, 0x8cd37cf3L,
+ 0xfbd44c65L, 0x4db26158L, 0x3ab551ceL, 0xa3bc0074L, 0xd4bb30e2L,
+ 0x4adfa541L, 0x3dd895d7L, 0xa4d1c46dL, 0xd3d6f4fbL, 0x4369e96aL,
+ 0x346ed9fcL, 0xad678846L, 0xda60b8d0L, 0x44042d73L, 0x33031de5L,
+ 0xaa0a4c5fL, 0xdd0d7cc9L, 0x5005713cL, 0x270241aaL, 0xbe0b1010L,
+ 0xc90c2086L, 0x5768b525L, 0x206f85b3L, 0xb966d409L, 0xce61e49fL,
+ 0x5edef90eL, 0x29d9c998L, 0xb0d09822L, 0xc7d7a8b4L, 0x59b33d17L,
+ 0x2eb40d81L, 0xb7bd5c3bL, 0xc0ba6cadL, 0xedb88320L, 0x9abfb3b6L,
+ 0x03b6e20cL, 0x74b1d29aL, 0xead54739L, 0x9dd277afL, 0x04db2615L,
+ 0x73dc1683L, 0xe3630b12L, 0x94643b84L, 0x0d6d6a3eL, 0x7a6a5aa8L,
+ 0xe40ecf0bL, 0x9309ff9dL, 0x0a00ae27L, 0x7d079eb1L, 0xf00f9344L,
+ 0x8708a3d2L, 0x1e01f268L, 0x6906c2feL, 0xf762575dL, 0x806567cbL,
+ 0x196c3671L, 0x6e6b06e7L, 0xfed41b76L, 0x89d32be0L, 0x10da7a5aL,
+ 0x67dd4accL, 0xf9b9df6fL, 0x8ebeeff9L, 0x17b7be43L, 0x60b08ed5L,
+ 0xd6d6a3e8L, 0xa1d1937eL, 0x38d8c2c4L, 0x4fdff252L, 0xd1bb67f1L,
+ 0xa6bc5767L, 0x3fb506ddL, 0x48b2364bL, 0xd80d2bdaL, 0xaf0a1b4cL,
+ 0x36034af6L, 0x41047a60L, 0xdf60efc3L, 0xa867df55L, 0x316e8eefL,
+ 0x4669be79L, 0xcb61b38cL, 0xbc66831aL, 0x256fd2a0L, 0x5268e236L,
+ 0xcc0c7795L, 0xbb0b4703L, 0x220216b9L, 0x5505262fL, 0xc5ba3bbeL,
+ 0xb2bd0b28L, 0x2bb45a92L, 0x5cb36a04L, 0xc2d7ffa7L, 0xb5d0cf31L,
+ 0x2cd99e8bL, 0x5bdeae1dL, 0x9b64c2b0L, 0xec63f226L, 0x756aa39cL,
+ 0x026d930aL, 0x9c0906a9L, 0xeb0e363fL, 0x72076785L, 0x05005713L,
+ 0x95bf4a82L, 0xe2b87a14L, 0x7bb12baeL, 0x0cb61b38L, 0x92d28e9bL,
+ 0xe5d5be0dL, 0x7cdcefb7L, 0x0bdbdf21L, 0x86d3d2d4L, 0xf1d4e242L,
+ 0x68ddb3f8L, 0x1fda836eL, 0x81be16cdL, 0xf6b9265bL, 0x6fb077e1L,
+ 0x18b74777L, 0x88085ae6L, 0xff0f6a70L, 0x66063bcaL, 0x11010b5cL,
+ 0x8f659effL, 0xf862ae69L, 0x616bffd3L, 0x166ccf45L, 0xa00ae278L,
+ 0xd70dd2eeL, 0x4e048354L, 0x3903b3c2L, 0xa7672661L, 0xd06016f7L,
+ 0x4969474dL, 0x3e6e77dbL, 0xaed16a4aL, 0xd9d65adcL, 0x40df0b66L,
+ 0x37d83bf0L, 0xa9bcae53L, 0xdebb9ec5L, 0x47b2cf7fL, 0x30b5ffe9L,
+ 0xbdbdf21cL, 0xcabac28aL, 0x53b39330L, 0x24b4a3a6L, 0xbad03605L,
+ 0xcdd70693L, 0x54de5729L, 0x23d967bfL, 0xb3667a2eL, 0xc4614ab8L,
+ 0x5d681b02L, 0x2a6f2b94L, 0xb40bbe37L, 0xc30c8ea1L, 0x5a05df1bL,
+ 0x2d02ef8dL
+ };
+
+/* Return a 32-bit CRC of the contents of the buffer. */
+
+static uint32_t
+_efi_crc32 (const void *buf, size_t len, uint32_t seed)
+{
+ size_t i;
+ uint32_t crc32val;
+ const unsigned char *s = buf;
+
+ crc32val = seed;
+ for (i = 0; i < len; i++) {
+ crc32val =
+ crc32_tab[(crc32val ^ s[i]) & 0xff] ^
+ (crc32val >> 8);
+ }
+ return crc32val;
+}
+
+uint32_t
+efi_crc32 (const void *buf, size_t len)
+{
+ return _efi_crc32 (buf, len, ~0L) ^ ~0L;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_EFI_CRC32_H
+#define NBDKIT_EFI_CRC32_H
+
+#include <stdint.h>
+
+extern uint32_t efi_crc32 (const void *buf, size_t len)
+ __attribute__((__nonnull__ (1)));
+
+#endif /* NBDKIT_EFI_CRC32_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_GPT_H
+#define NBDKIT_GPT_H
+
+struct gpt_header {
+ char signature[8];
+ char revision[4];
+ uint32_t header_size;
+ uint32_t crc;
+ uint32_t reserved;
+ uint64_t current_lba;
+ uint64_t backup_lba;
+ uint64_t first_usable_lba;
+ uint64_t last_usable_lba;
+ char guid[16];
+ uint64_t partition_entries_lba;
+ uint32_t nr_partition_entries;
+ uint32_t size_partition_entry;
+ uint32_t crc_partitions;
+};
+
+#define GPT_SIGNATURE "EFI PART"
+#define GPT_REVISION "\0\0\1\0" /* revision 1.0 */
+
+struct gpt_entry {
+ char partition_type_guid[16];
+ char unique_guid[16];
+ uint64_t first_lba;
+ uint64_t last_lba;
+ uint64_t attributes;
+ char name[72]; /* UTF-16LE */
+};
+
+/* GPT_MIN_PARTITIONS is the minimum number of partitions and is
+ * defined by the UEFI standard (assuming 512 byte sector size).
+ *
+ * In plugins such as the partitioning plugin, if we are requested to
+ * allocate more than GPT_MIN_PARTITIONS then we increase the
+ * partition table in chunks of this size. Note that clients may not
+ * support > GPT_MIN_PARTITIONS.
+ *
+ * GPT_PT_ENTRY_SIZE is the minimum specified by the UEFI spec, but
+ * increasing it is not useful.
+ */
+#define GPT_MIN_PARTITIONS 128
+#define GPT_PT_ENTRY_SIZE 128
+
+#endif /* NBDKIT_GPT_H */
--- /dev/null
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+# These headers contain only common code shared by the core server,
+# plugins and/or filters. They are not installed.
+EXTRA_DIST = \
+ byte-swapping.h \
+ exit-with-parent.h \
+ get-current-dir-name.h \
+ isaligned.h \
+ ispowerof2.h \
+ iszero.h \
+ minmax.h \
+ nextnonzero.h \
+ random.h \
+ rounding.h \
+ tvdiff.h
+
+# Unit tests.
+
+TESTS = \
+ test-byte-swapping \
+ test-current-dir-name \
+ test-isaligned \
+ test-ispowerof2 \
+ test-iszero \
+ test-minmax \
+ test-nextnonzero \
+ test-random \
+ test-tvdiff
+check_PROGRAMS = $(TESTS)
+
+test_byte_swapping_SOURCES = test-byte-swapping.c byte-swapping.h
+test_byte_swapping_CPPFLAGS = -I$(srcdir)
+test_byte_swapping_CFLAGS = $(WARNINGS_CFLAGS)
+
+test_current_dir_name_SOURCES = test-current-dir-name.c get-current-dir-name.h
+test_current_dir_name_CPPFLAGS = -I$(srcdir)
+test_current_dir_name_CFLAGS = $(WARNINGS_CFLAGS)
+
+test_isaligned_SOURCES = test-isaligned.c isaligned.h
+test_isaligned_CPPFLAGS = -I$(srcdir)
+test_isaligned_CFLAGS = $(WARNINGS_CFLAGS)
+
+test_ispowerof2_SOURCES = test-ispowerof2.c ispowerof2.h
+test_ispowerof2_CPPFLAGS = -I$(srcdir)
+test_ispowerof2_CFLAGS = $(WARNINGS_CFLAGS)
+
+test_iszero_SOURCES = test-iszero.c iszero.h
+test_iszero_CPPFLAGS = -I$(srcdir)
+test_iszero_CFLAGS = $(WARNINGS_CFLAGS)
+
+test_minmax_SOURCES = test-minmax.c minmax.h
+test_minmax_CPPFLAGS = -I$(srcdir)
+test_minmax_CFLAGS = $(WARNINGS_CFLAGS)
+
+test_nextnonzero_SOURCES = test-nextnonzero.c nextnonzero.h
+test_nextnonzero_CPPFLAGS = -I$(srcdir)
+test_nextnonzero_CFLAGS = $(WARNINGS_CFLAGS)
+
+test_random_SOURCES = test-random.c random.h
+test_random_CPPFLAGS = -I$(srcdir)
+test_random_CFLAGS = $(WARNINGS_CFLAGS)
+
+test_tvdiff_SOURCES = test-tvdiff.c tvdiff.h
+test_tvdiff_CPPFLAGS = -I$(srcdir)
+test_tvdiff_CFLAGS = $(WARNINGS_CFLAGS)
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+ true; \
+ else \
+ false; \
+ fi; \
+}
+am__make_running_with_option = \
+ case $${target_option-} in \
+ ?) ;; \
+ *) echo "am__make_running_with_option: internal error: invalid" \
+ "target option '$${target_option-}' specified" >&2; \
+ exit 1;; \
+ esac; \
+ has_opt=no; \
+ sane_makeflags=$$MAKEFLAGS; \
+ if $(am__is_gnu_make); then \
+ sane_makeflags=$$MFLAGS; \
+ else \
+ case $$MAKEFLAGS in \
+ *\\[\ \ ]*) \
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+ sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+ | sed "s/$$bs$$bs[$$bs $$bs ]*//g"`;; \
+ esac; \
+ fi; \
+ skip_next=no; \
+ strip_trailopt () \
+ { \
+ flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+ }; \
+ for flg in $$sane_makeflags; do \
+ test $$skip_next = yes && { skip_next=no; continue; }; \
+ case $$flg in \
+ *=*|--*) continue;; \
+ -*I) strip_trailopt 'I'; skip_next=yes;; \
+ -*I?*) strip_trailopt 'I';; \
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+ -*l) strip_trailopt 'l'; skip_next=yes;; \
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+ -[dEDm]) skip_next=yes;; \
+ -[JT]) skip_next=yes;; \
+ esac; \
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+ *$$target_option*) has_opt=yes; break;; \
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+ test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
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+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
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+build_triplet = @build@
+host_triplet = @host@
+TESTS = test-byte-swapping$(EXEEXT) test-current-dir-name$(EXEEXT) \
+ test-isaligned$(EXEEXT) test-ispowerof2$(EXEEXT) \
+ test-iszero$(EXEEXT) test-minmax$(EXEEXT) \
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+ test-current-dir-name$(EXEEXT) test-isaligned$(EXEEXT) \
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+ test-minmax$(EXEEXT) test-nextnonzero$(EXEEXT) \
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+localedir = @localedir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+non_lang_plugins = @non_lang_plugins@
+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
+plugins = @plugins@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+plugindir = $(libdir)/nbdkit/plugins
+filterdir = $(libdir)/nbdkit/filters
+CLEANFILES = *~ *.cmi *.cmx *.cmxa *.so
+
+# These headers contain only common code shared by the core server,
+# plugins and/or filters. They are not installed.
+EXTRA_DIST = \
+ byte-swapping.h \
+ exit-with-parent.h \
+ get-current-dir-name.h \
+ isaligned.h \
+ ispowerof2.h \
+ iszero.h \
+ minmax.h \
+ nextnonzero.h \
+ random.h \
+ rounding.h \
+ tvdiff.h
+
+test_byte_swapping_SOURCES = test-byte-swapping.c byte-swapping.h
+test_byte_swapping_CPPFLAGS = -I$(srcdir)
+test_byte_swapping_CFLAGS = $(WARNINGS_CFLAGS)
+test_current_dir_name_SOURCES = test-current-dir-name.c get-current-dir-name.h
+test_current_dir_name_CPPFLAGS = -I$(srcdir)
+test_current_dir_name_CFLAGS = $(WARNINGS_CFLAGS)
+test_isaligned_SOURCES = test-isaligned.c isaligned.h
+test_isaligned_CPPFLAGS = -I$(srcdir)
+test_isaligned_CFLAGS = $(WARNINGS_CFLAGS)
+test_ispowerof2_SOURCES = test-ispowerof2.c ispowerof2.h
+test_ispowerof2_CPPFLAGS = -I$(srcdir)
+test_ispowerof2_CFLAGS = $(WARNINGS_CFLAGS)
+test_iszero_SOURCES = test-iszero.c iszero.h
+test_iszero_CPPFLAGS = -I$(srcdir)
+test_iszero_CFLAGS = $(WARNINGS_CFLAGS)
+test_minmax_SOURCES = test-minmax.c minmax.h
+test_minmax_CPPFLAGS = -I$(srcdir)
+test_minmax_CFLAGS = $(WARNINGS_CFLAGS)
+test_nextnonzero_SOURCES = test-nextnonzero.c nextnonzero.h
+test_nextnonzero_CPPFLAGS = -I$(srcdir)
+test_nextnonzero_CFLAGS = $(WARNINGS_CFLAGS)
+test_random_SOURCES = test-random.c random.h
+test_random_CPPFLAGS = -I$(srcdir)
+test_random_CFLAGS = $(WARNINGS_CFLAGS)
+test_tvdiff_SOURCES = test-tvdiff.c tvdiff.h
+test_tvdiff_CPPFLAGS = -I$(srcdir)
+test_tvdiff_CFLAGS = $(WARNINGS_CFLAGS)
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .lo .log .o .obj .test .test$(EXEEXT) .trs
+$(srcdir)/Makefile.in: $(srcdir)/Makefile.am $(top_srcdir)/common-rules.mk $(am__configure_deps)
+ @for dep in $?; do \
+ case '$(am__configure_deps)' in \
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+ && { if test -f $@; then exit 0; else break; fi; }; \
+ exit 1;; \
+ esac; \
+ done; \
+ echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign common/include/Makefile'; \
+ $(am__cd) $(top_srcdir) && \
+ $(AUTOMAKE) --foreign common/include/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+ @case '$?' in \
+ *config.status*) \
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+ *) \
+ echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
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+$(top_srcdir)/common-rules.mk $(am__empty):
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+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+
+clean-checkPROGRAMS:
+ @list='$(check_PROGRAMS)'; test -n "$$list" || exit 0; \
+ echo " rm -f" $$list; \
+ rm -f $$list || exit $$?; \
+ test -n "$(EXEEXT)" || exit 0; \
+ list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+ echo " rm -f" $$list; \
+ rm -f $$list
+
+test-byte-swapping$(EXEEXT): $(test_byte_swapping_OBJECTS) $(test_byte_swapping_DEPENDENCIES) $(EXTRA_test_byte_swapping_DEPENDENCIES)
+ @rm -f test-byte-swapping$(EXEEXT)
+ $(AM_V_CCLD)$(test_byte_swapping_LINK) $(test_byte_swapping_OBJECTS) $(test_byte_swapping_LDADD) $(LIBS)
+
+test-current-dir-name$(EXEEXT): $(test_current_dir_name_OBJECTS) $(test_current_dir_name_DEPENDENCIES) $(EXTRA_test_current_dir_name_DEPENDENCIES)
+ @rm -f test-current-dir-name$(EXEEXT)
+ $(AM_V_CCLD)$(test_current_dir_name_LINK) $(test_current_dir_name_OBJECTS) $(test_current_dir_name_LDADD) $(LIBS)
+
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+ @rm -f test-isaligned$(EXEEXT)
+ $(AM_V_CCLD)$(test_isaligned_LINK) $(test_isaligned_OBJECTS) $(test_isaligned_LDADD) $(LIBS)
+
+test-ispowerof2$(EXEEXT): $(test_ispowerof2_OBJECTS) $(test_ispowerof2_DEPENDENCIES) $(EXTRA_test_ispowerof2_DEPENDENCIES)
+ @rm -f test-ispowerof2$(EXEEXT)
+ $(AM_V_CCLD)$(test_ispowerof2_LINK) $(test_ispowerof2_OBJECTS) $(test_ispowerof2_LDADD) $(LIBS)
+
+test-iszero$(EXEEXT): $(test_iszero_OBJECTS) $(test_iszero_DEPENDENCIES) $(EXTRA_test_iszero_DEPENDENCIES)
+ @rm -f test-iszero$(EXEEXT)
+ $(AM_V_CCLD)$(test_iszero_LINK) $(test_iszero_OBJECTS) $(test_iszero_LDADD) $(LIBS)
+
+test-minmax$(EXEEXT): $(test_minmax_OBJECTS) $(test_minmax_DEPENDENCIES) $(EXTRA_test_minmax_DEPENDENCIES)
+ @rm -f test-minmax$(EXEEXT)
+ $(AM_V_CCLD)$(test_minmax_LINK) $(test_minmax_OBJECTS) $(test_minmax_LDADD) $(LIBS)
+
+test-nextnonzero$(EXEEXT): $(test_nextnonzero_OBJECTS) $(test_nextnonzero_DEPENDENCIES) $(EXTRA_test_nextnonzero_DEPENDENCIES)
+ @rm -f test-nextnonzero$(EXEEXT)
+ $(AM_V_CCLD)$(test_nextnonzero_LINK) $(test_nextnonzero_OBJECTS) $(test_nextnonzero_LDADD) $(LIBS)
+
+test-random$(EXEEXT): $(test_random_OBJECTS) $(test_random_DEPENDENCIES) $(EXTRA_test_random_DEPENDENCIES)
+ @rm -f test-random$(EXEEXT)
+ $(AM_V_CCLD)$(test_random_LINK) $(test_random_OBJECTS) $(test_random_LDADD) $(LIBS)
+
+test-tvdiff$(EXEEXT): $(test_tvdiff_OBJECTS) $(test_tvdiff_DEPENDENCIES) $(EXTRA_test_tvdiff_DEPENDENCIES)
+ @rm -f test-tvdiff$(EXEEXT)
+ $(AM_V_CCLD)$(test_tvdiff_LINK) $(test_tvdiff_OBJECTS) $(test_tvdiff_LDADD) $(LIBS)
+
+mostlyclean-compile:
+ -rm -f *.$(OBJEXT)
+
+distclean-compile:
+ -rm -f *.tab.c
+
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+ $(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+ --log-file $$b.log --trs-file $$b.trs \
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+ $(am__set_b); \
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+@am__EXEEXT_TRUE@ $(am__set_b); \
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+distdir: $(BUILT_SOURCES)
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+
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+ dist_files=`for file in $$list; do echo $$file; done | \
+ sed -e "s|^$$srcdirstrip/||;t" \
+ -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+ case $$dist_files in \
+ */*) $(MKDIR_P) `echo "$$dist_files" | \
+ sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+ sort -u` ;; \
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+ for file in $$dist_files; do \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
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+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
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+ cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+ else \
+ test -f "$(distdir)/$$file" \
+ || cp -p $$d/$$file "$(distdir)/$$file" \
+ || exit 1; \
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+ done
+check-am: all-am
+ $(MAKE) $(AM_MAKEFLAGS) $(check_PROGRAMS)
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+ else \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
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+ fi
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+ -test -z "$(TEST_LOGS:.log=.trs)" || rm -f $(TEST_LOGS:.log=.trs)
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+
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+
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+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
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+
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+
+distclean: distclean-am
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+
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+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* The job of this header is to define macros (or functions) called
+ * things like 'htobe32' and 'le64toh' which byte swap N-bit integers
+ * between host representation, and little and big endian. The core
+ * code and plugins in nbdkit uses these names and relies on this
+ * header to provide the platform-specific implementation. On Linux
+ * these are defined in <endian.h> but other platforms have other
+ * requirements.
+ */
+
+#ifndef NBDKIT_BYTE_SWAPPING_H
+#define NBDKIT_BYTE_SWAPPING_H
+
+#ifdef __HAIKU__
+#define _BSD_SOURCE
+#endif
+
+#ifdef HAVE_BYTESWAP_H
+#include <byteswap.h>
+#endif
+
+#ifdef HAVE_ENDIAN_H
+#include <endian.h>
+#endif
+
+#ifdef HAVE_SYS_ENDIAN_H
+#include <sys/endian.h>
+#endif
+
+#ifndef htobe32
+# if __BYTE_ORDER == __LITTLE_ENDIAN
+# define htobe16(x) __bswap_16 (x)
+# define htole16(x) (x)
+# define be16toh(x) __bswap_16 (x)
+# define le16toh(x) (x)
+
+# define htobe32(x) __bswap_32 (x)
+# define htole32(x) (x)
+# define be32toh(x) __bswap_32 (x)
+# define le32toh(x) (x)
+
+# define htobe64(x) __bswap_64 (x)
+# define htole64(x) (x)
+# define be64toh(x) __bswap_64 (x)
+# define le64toh(x) (x)
+
+# else
+# define htobe16(x) (x)
+# define htole16(x) __bswap_16 (x)
+# define be16toh(x) (x)
+# define le16toh(x) __bswap_16 (x)
+
+# define htobe32(x) (x)
+# define htole32(x) __bswap_32 (x)
+# define be32toh(x) (x)
+# define le32toh(x) __bswap_32 (x)
+
+# define htobe64(x) (x)
+# define htole64(x) __bswap_64 (x)
+# define be64toh(x) (x)
+# define le64toh(x) __bswap_64 (x)
+# endif
+#endif
+
+#endif /* NBDKIT_BYTE_SWAPPING_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* Implement the --exit-with-parent feature on operating systems which
+ * support it.
+ */
+
+#ifndef NBDKIT_EXIT_WITH_PARENT_H
+#define NBDKIT_EXIT_WITH_PARENT_H
+
+#include <config.h>
+
+#include <signal.h>
+
+#ifdef HAVE_SYS_PRCTL_H
+#include <sys/prctl.h>
+#endif
+
+#ifdef HAVE_SYS_PROCCTL_H
+#include <sys/procctl.h>
+#endif
+
+#if defined(HAVE_SYS_PRCTL_H) && defined(PR_SET_PDEATHSIG)
+
+/* For Linux >= 2.1.57. */
+
+static inline int
+set_exit_with_parent (void)
+{
+ return prctl (PR_SET_PDEATHSIG, SIGTERM);
+}
+
+#define HAVE_EXIT_WITH_PARENT 1
+
+#elif defined(HAVE_SYS_PROCCTL_H) && defined(PROC_PDEATHSIG_CTL)
+
+/* For FreeBSD >= 11.2 */
+
+static inline int
+set_exit_with_parent (void)
+{
+ const int sig = SIGTERM;
+ return procctl (P_PID, 0, PROC_PDEATHSIG_CTL, (void*) &sig);
+}
+
+#define HAVE_EXIT_WITH_PARENT 1
+
+#endif
+
+#endif /* NBDKIT_INTERNAL_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* Implement get_current_dir_name(3) on platforms which don't have it. */
+
+#ifndef NBDKIT_GET_CURRENT_DIR_NAME_H
+#define NBDKIT_GET_CURRENT_DIR_NAME_H
+
+#include <config.h>
+
+#ifndef HAVE_GET_CURRENT_DIR_NAME
+
+#include <stdlib.h>
+#include <unistd.h>
+#include <limits.h>
+
+static inline char *
+get_current_dir_name (void)
+{
+ char *ret;
+
+ ret = malloc (PATH_MAX);
+ if (ret == NULL)
+ return NULL;
+ ret = getcwd (ret, PATH_MAX);
+ if (ret == NULL)
+ return NULL;
+ return realloc (ret, strlen (ret) + 1);
+}
+#endif
+
+#endif /* NBDKIT_GET_CURRENT_DIR_NAME_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_ISALIGNED_H
+#define NBDKIT_ISALIGNED_H
+
+#include <assert.h>
+
+#include "ispowerof2.h"
+
+/* Return true if size is a multiple of align. align must be power of 2.
+ */
+#define IS_ALIGNED(size, align) ({ \
+ assert (is_power_of_2 ((align))); \
+ !((size) & ((align) - 1)); \
+})
+
+#endif /* NBDKIT_ISALIGNED_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_ISPOWEROF2_H
+#define NBDKIT_ISPOWEROF2_H
+
+#include <stdbool.h>
+
+/* Returns true if v is a power of 2.
+ *
+ * Uses the algorithm described at
+ * http://graphics.stanford.edu/~seander/bithacks.html#DetermineIfPowerOf2
+ */
+static inline bool
+is_power_of_2 (unsigned long v)
+{
+ return v && ((v & (v - 1)) == 0);
+}
+
+#endif /* NBDKIT_ISPOWEROF2_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_ISZERO_H
+#define NBDKIT_ISZERO_H
+
+#include <string.h>
+#include <stdbool.h>
+
+/* Return true iff the buffer is all zero bytes.
+ *
+ * The clever approach here was suggested by Eric Blake. See:
+ * https://www.redhat.com/archives/libguestfs/2017-April/msg00171.html
+ * https://rusty.ozlabs.org/?p=560
+ *
+ * See also:
+ * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69908
+ */
+static inline bool __attribute__((__nonnull__ (1)))
+is_zero (const char *buffer, size_t size)
+{
+ size_t i;
+ const size_t limit = size < 16 ? size : 16;
+
+ for (i = 0; i < limit; ++i)
+ if (buffer[i])
+ return false;
+ if (size != limit)
+ return ! memcmp (buffer, buffer + 16, size - 16);
+
+ return true;
+}
+
+#endif /* NBDKIT_ISZERO_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_MINMAX_H
+#define NBDKIT_MINMAX_H
+
+#include <config.h>
+
+/* Safe MIN and MAX macros. These evaluate each parameter once. They
+ * work for any comparable type.
+ *
+ * __auto_type is a GCC extension, added in GCC 4.9 in 2014, and to
+ * Clang in 2015. The fallback uses typeof which was added a very
+ * long time ago. Note that OpenBSD lacks __auto_type so the fallback
+ * is required.
+ */
+
+#ifdef HAVE_AUTO_TYPE
+
+#define MIN(x, y) ({ \
+ __auto_type _x = (x); \
+ __auto_type _y = (y); \
+ _x < _y ? _x : _y; \
+ })
+#define MAX(x, y) ({ \
+ __auto_type _x = (x); \
+ __auto_type _y = (y); \
+ _x > _y ? _x : _y; \
+ })
+
+#else
+
+#define MIN(x, y) ({ \
+ typeof (x) _x = (x); \
+ typeof (y) _y = (y); \
+ _x < _y ? _x : _y; \
+ })
+#define MAX(x, y) ({ \
+ typeof (x) _x = (x); \
+ typeof (y) _y = (y); \
+ _x > _y ? _x : _y; \
+ })
+
+#endif
+
+#endif /* NBDKIT_MINMAX_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_NEXTNONZERO_H
+#define NBDKIT_NEXTNONZERO_H
+
+/* Given a byte buffer, return a pointer to the first non-zero byte,
+ * or return NULL if we reach the end of the buffer.
+ *
+ * XXX: Even with -O3 -mavx2, gcc 8.2.1 does a terrible job with this
+ * loop, compiling it completely naively. QEMU has an AVX2
+ * implementation of a similar loop.
+ *
+ * See also:
+ * https://sourceware.org/bugzilla/show_bug.cgi?id=19920
+ * https://gcc.gnu.org/bugzilla/show_bug.cgi?id=69908
+ */
+static inline const char * __attribute__((__nonnull__ (1)))
+next_non_zero (const char *buffer, size_t size)
+{
+ size_t i;
+
+ for (i = 0; i < size; ++i)
+ if (buffer[i] != 0)
+ return &buffer[i];
+ return NULL;
+}
+
+#endif /* NBDKIT_NEXTNONZERO_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_RANDOM_H
+#define NBDKIT_RANDOM_H
+
+#include <stdint.h>
+
+/* Generate pseudo-random numbers, quickly, with explicit state.
+ *
+ * This is based on the xoshiro/xoroshiro generators by David Blackman
+ * and Sebastiano Vigna (http://xoshiro.di.unimi.it/). Specifically
+ * the main PRNG is ‘xoshiro256** 1.0’, and the seed generator is
+ * ‘splitmix64’.
+ *
+ * This does _NOT_ generate cryptographically secure random numbers
+ * (CSPRNG) and so should not be used when cryptography or security is
+ * required - use gcrypt if you need those.
+ */
+
+/* You can seed ‘struct random_state’ by setting the s[] elements
+ * directly - but you must NOT set them all to zero. Alternately if
+ * you have a 64 bit seed, you can call xsrandom to initialize the
+ * state.
+ */
+struct random_state {
+ uint64_t s[4];
+};
+
+static inline uint64_t
+snext (uint64_t *seed)
+{
+ uint64_t z = (*seed += 0x9e3779b97f4a7c15);
+ z = (z ^ (z >> 30)) * 0xbf58476d1ce4e5b9;
+ z = (z ^ (z >> 27)) * 0x94d049bb133111eb;
+ return z ^ (z >> 31);
+}
+
+/* Seed the random state from a 64 bit seed. */
+static inline void __attribute__((__nonnull__ (2)))
+xsrandom (uint64_t seed, struct random_state *state)
+{
+ state->s[0] = snext (&seed);
+ state->s[1] = snext (&seed);
+ state->s[2] = snext (&seed);
+ state->s[3] = snext (&seed);
+}
+
+static inline uint64_t
+rotl (const uint64_t x, int k)
+{
+ return (x << k) | (x >> (64 - k));
+}
+
+/* Returns 64 random bits. Updates the state. */
+static inline uint64_t __attribute__((__nonnull__ (1)))
+xrandom (struct random_state *state)
+{
+ const uint64_t result_starstar = rotl (state->s[1] * 5, 7) * 9;
+ const uint64_t t = state->s[1] << 17;
+
+ state->s[2] ^= state->s[0];
+ state->s[3] ^= state->s[1];
+ state->s[1] ^= state->s[2];
+ state->s[0] ^= state->s[3];
+
+ state->s[2] ^= t;
+
+ state->s[3] = rotl (state->s[3], 45);
+
+ return result_starstar;
+}
+
+#endif /* NBDKIT_RANDOM_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_ROUNDING_H
+#define NBDKIT_ROUNDING_H
+
+#include <assert.h>
+
+#include "ispowerof2.h"
+
+/* Round up i to next multiple of n (n must be a power of 2).
+ */
+#define ROUND_UP(i, n) ({ \
+ assert (is_power_of_2 (n)); \
+ ((i) + (n) - 1) & -((typeof (i))(n)); \
+})
+
+/* Round down i to next multiple of n (n must be a power of 2).
+ */
+#define ROUND_DOWN(i, n) ({ \
+ assert (is_power_of_2 (n)); \
+ (i) & -((typeof (i))(n)); \
+})
+
+/* Return n / d, rounding the result up to the next integer. */
+#define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
+
+#endif /* NBDKIT_ROUNDING_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <assert.h>
+
+#include "byte-swapping.h"
+
+/* Little-endian test strings. */
+static uint8_t le16[] = { 0x34, 0x12 };
+static uint8_t le32[] = { 0x78, 0x56, 0x34, 0x12 };
+static uint8_t le64[] = { 0xf0, 0xde, 0xbc, 0x9a, 0x78, 0x56, 0x34, 0x12 };
+
+/* Big-endian test strings. */
+static uint8_t be16[] = { 0x12, 0x34 };
+static uint8_t be32[] = { 0x12, 0x34, 0x56, 0x78 };
+static uint8_t be64[] = { 0x12, 0x34, 0x56, 0x78, 0x9a, 0xbc, 0xde, 0xf0 };
+
+int
+main (void)
+{
+ uint16_t i16;
+ uint32_t i32;
+ uint64_t i64;
+
+ memcpy (&i16, le16, 2);
+ assert (le16toh (i16) == 0x1234);
+ memcpy (&i32, le32, 4);
+ assert (le32toh (i32) == 0x12345678);
+ memcpy (&i64, le64, 8);
+ assert (le64toh (i64) == 0x123456789abcdef0);
+
+ memcpy (&i16, be16, 2);
+ assert (be16toh (i16) == 0x1234);
+ memcpy (&i32, be32, 4);
+ assert (be32toh (i32) == 0x12345678);
+ memcpy (&i64, be64, 8);
+ assert (be64toh (i64) == 0x123456789abcdef0);
+
+ i16 = htole16 (0x1234);
+ assert (memcmp (&i16, le16, 2) == 0);
+ i32 = htole32 (0x12345678);
+ assert (memcmp (&i32, le32, 4) == 0);
+ i64 = htole64 (0x123456789abcdef0);
+ assert (memcmp (&i64, le64, 8) == 0);
+
+ i16 = htobe16 (0x1234);
+ assert (memcmp (&i16, be16, 2) == 0);
+ i32 = htobe32 (0x12345678);
+ assert (memcmp (&i32, be32, 4) == 0);
+ i64 = htobe64 (0x123456789abcdef0);
+ assert (memcmp (&i64, be64, 8) == 0);
+
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <unistd.h>
+#include <assert.h>
+
+#include "get-current-dir-name.h"
+
+int
+main (void)
+{
+ char *pwd;
+
+ pwd = get_current_dir_name ();
+ printf ("pwd = %s\n", pwd);
+ free (pwd);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <assert.h>
+
+#include "isaligned.h"
+
+int
+main (void)
+{
+ uint64_t i;
+
+ for (i = 1; i <= 0x80000000; i <<= 1) {
+ assert (IS_ALIGNED (0, i));
+ assert (IS_ALIGNED (i, i));
+ assert (IS_ALIGNED (i*2, i));
+ assert (IS_ALIGNED (i*3, i));
+ assert (IS_ALIGNED (i*4, i));
+ if (i > 1) {
+ assert (! IS_ALIGNED (i-1, i));
+ assert (! IS_ALIGNED (i/2, i));
+ }
+ }
+
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <assert.h>
+
+#include "ispowerof2.h"
+
+int
+main (void)
+{
+ uint64_t i;
+
+ assert (! is_power_of_2 (0));
+
+ /* is_power_of_2 is only defined for unsigned long type, which is
+ * 32 bit on 32 bit platforms. We need to store i in a 64 bit type
+ * so the loops don't wrap around.
+ */
+ for (i = 1; i <= 0x80000000; i <<= 1)
+ assert (is_power_of_2 (i));
+
+ for (i = 4; i <= 0x80000000; i <<= 1)
+ assert (! is_power_of_2 (i-1));
+
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <assert.h>
+
+#include "iszero.h"
+
+int
+main (void)
+{
+ char *buf;
+ size_t i, j;
+
+ buf = malloc (256);
+ if (buf == NULL) {
+ perror ("malloc");
+ exit (EXIT_FAILURE);
+ }
+ memset (buf, 0, 256);
+
+ for (j = 0; j <= 16; ++j) {
+ for (i = 0; i <= 16; ++i)
+ assert (is_zero (&buf[j], i));
+ for (i = 0; i <= 16; ++i)
+ assert (is_zero (&buf[j], 256-j-i));
+ }
+
+ free (buf);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <limits.h>
+#include <assert.h>
+#include <float.h>
+
+#include "minmax.h"
+
+#define SIGNED_TEST(var, min, max) \
+ MIN_SIGNED_TEST (var, min, max) \
+ MAX_SIGNED_TEST (var, min, max)
+
+#define MIN_SIGNED_TEST(var, min, max) \
+ var = 0; \
+ assert (MIN (0, var) == 0); \
+ var = 1; \
+ assert (MIN (0, var) == 0); \
+ var = -1; \
+ assert (MIN (0, var) == -1); \
+ var = 1; \
+ assert (MIN (var, 0) == 0); \
+ var = 1; \
+ assert (MIN (var, 1) == 1); \
+ var = -1; \
+ assert (MIN (var, 0) == -1); \
+ var = min; \
+ assert (MIN (var, min) == min); \
+ var = max; \
+ assert (MIN (var, max) == max); \
+ var = min; \
+ assert (MIN (var, max) == min); \
+ assert (MIN (0, min) == min);
+
+#define MAX_SIGNED_TEST(var, min, max) \
+ var = 0; \
+ assert (MAX (0, var) == 0); \
+ var = 1; \
+ assert (MAX (0, var) == 1); \
+ var = -1; \
+ assert (MAX (0, var) == 0); \
+ var = 1; \
+ assert (MAX (var, 0) == 1); \
+ var = 1; \
+ assert (MAX (var, 1) == 1); \
+ var = -1; \
+ assert (MAX (var, 0) == 0); \
+ var = min; \
+ assert (MAX (var, min) == min); \
+ var = max; \
+ assert (MAX (var, max) == max); \
+ var = min; \
+ assert (MAX (var, max) == max); \
+ assert (MAX (0, min) == 0);
+
+#define UNSIGNED_TEST(var, max) \
+ MIN_UNSIGNED_TEST (var, max) \
+ MAX_UNSIGNED_TEST (var, max)
+
+#define MIN_UNSIGNED_TEST(var, max) \
+ var = 0; \
+ assert (MIN (0, var) == 0); \
+ var = 1; \
+ assert (MIN (0, var) == 0); \
+ var = 1; \
+ assert (MIN (var, 0) == 0); \
+ var = 1; \
+ assert (MIN (var, 1) == 1); \
+ var = max; \
+ assert (MIN (var, max) == max);
+
+#define MAX_UNSIGNED_TEST(var, max) \
+ var = 0; \
+ assert (MAX (0, var) == 0); \
+ var = 1; \
+ assert (MAX (0, var) == 1); \
+ var = 1; \
+ assert (MAX (var, 0) == 1); \
+ var = 1; \
+ assert (MAX (var, 1) == 1); \
+ var = max; \
+ assert (MAX (var, max) == max);
+
+int
+main (void)
+{
+ signed char sc;
+ int i;
+ int8_t i8;
+ int16_t i16;
+ int32_t i32;
+ int64_t i64;
+ unsigned char uc;
+ unsigned u;
+ uint8_t u8;
+ uint16_t u16;
+ uint32_t u32;
+ uint64_t u64;
+ float f;
+ double d;
+
+ SIGNED_TEST (sc, SCHAR_MIN, SCHAR_MAX);
+ SIGNED_TEST (i, INT_MIN, INT_MAX);
+ SIGNED_TEST (i8, INT8_MIN, INT8_MAX);
+ SIGNED_TEST (i16, INT16_MIN, INT16_MAX);
+ SIGNED_TEST (i32, INT32_MIN, INT32_MAX);
+ SIGNED_TEST (i64, INT64_MIN, INT64_MAX);
+
+ UNSIGNED_TEST (uc, UCHAR_MAX);
+ UNSIGNED_TEST (u, UINT_MAX);
+ UNSIGNED_TEST (u8, UINT8_MAX);
+ UNSIGNED_TEST (u16, UINT16_MAX);
+ UNSIGNED_TEST (u32, UINT32_MAX);
+ UNSIGNED_TEST (u64, UINT64_MAX);
+
+ /* Note that FLT_MIN and DBL_MIN are the closest positive normalized
+ * numbers to 0.0, not the min.
+ */
+ SIGNED_TEST (f, -FLT_MAX, FLT_MAX);
+ SIGNED_TEST (d, -DBL_MAX, DBL_MAX);
+
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <assert.h>
+
+#include "nextnonzero.h"
+
+char buf[256];
+
+int
+main (void)
+{
+ size_t i, j;
+ char *p;
+
+ for (j = 0; j <= 64; ++j) {
+ for (i = 0; i <= 64; ++i) {
+ memset (buf, 0, sizeof buf);
+
+ p = &buf[sizeof buf - j - 1];
+ *p = i+1;
+ assert (next_non_zero (&buf[i], sizeof buf - i) == p);
+ }
+ }
+
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+
+#include "random.h"
+
+/* This works by comparing the result to some known test vectors. It
+ * should produce the same result on all architectures, platforms and
+ * compilers.
+ */
+
+#define LEN 16
+
+struct {
+ uint64_t seed;
+ uint64_t vector[LEN];
+} tests[] = {
+ { 0, {
+UINT64_C(0x99ec5f36cb75f2b4),
+UINT64_C(0xbf6e1f784956452a),
+UINT64_C(0x1a5f849d4933e6e0),
+UINT64_C(0x6aa594f1262d2d2c),
+UINT64_C(0xbba5ad4a1f842e59),
+UINT64_C(0xffef8375d9ebcaca),
+UINT64_C(0x6c160deed2f54c98),
+UINT64_C(0x8920ad648fc30a3f),
+UINT64_C(0xdb032c0ba7539731),
+UINT64_C(0xeb3a475a3e749a3d),
+UINT64_C(0x1d42993fa43f2a54),
+UINT64_C(0x11361bf526a14bb5),
+UINT64_C(0x1b4f07a5ab3d8e9c),
+UINT64_C(0xa7a3257f6986db7f),
+UINT64_C(0x7efdaa95605dfc9c),
+UINT64_C(0x4bde97c0a78eaab8),
+ } },
+ { 1, {
+UINT64_C(0xb3f2af6d0fc710c5),
+UINT64_C(0x853b559647364cea),
+UINT64_C(0x92f89756082a4514),
+UINT64_C(0x642e1c7bc266a3a7),
+UINT64_C(0xb27a48e29a233673),
+UINT64_C(0x24c123126ffda722),
+UINT64_C(0x123004ef8df510e6),
+UINT64_C(0x61954dcc47b1e89d),
+UINT64_C(0xddfdb48ab9ed4a21),
+UINT64_C(0x8d3cdb8c3aa5b1d0),
+UINT64_C(0xeebd114bd87226d1),
+UINT64_C(0xf50c3ff1e7d7e8a6),
+UINT64_C(0xeeca3115e23bc8f1),
+UINT64_C(0xab49ed3db4c66435),
+UINT64_C(0x99953c6c57808dd7),
+UINT64_C(0xe3fa941b05219325),
+} },
+ { 2, {
+UINT64_C(0x1a28690da8a8d057),
+UINT64_C(0xb9bb8042daedd58a),
+UINT64_C(0x2f1829af001ef205),
+UINT64_C(0xbf733e63d139683d),
+UINT64_C(0xafa78247c6a82034),
+UINT64_C(0x3c69a1b6d15cf0d0),
+UINT64_C(0xa5a9fdd18948c400),
+UINT64_C(0x3813d2654a981e91),
+UINT64_C(0x9be35597c9c97bfa),
+UINT64_C(0xbfc5e80fd0b75f32),
+UINT64_C(0xbee02daaac716557),
+UINT64_C(0x5afed6f12b594dbe),
+UINT64_C(0xae346b9196e12cc7),
+UINT64_C(0xf5f45afc1af068ed),
+UINT64_C(0xff75eccacfb37519),
+UINT64_C(0x1adca5a0b2e766c5),
+} },
+ { 3, {
+UINT64_C(0xb0cdabdae5668cc0),
+UINT64_C(0xa3fd1dea5e1864ee),
+UINT64_C(0x37e00afb3229fd51),
+UINT64_C(0x88b1b58b236f3bea),
+UINT64_C(0x6cb24c8fb224980a),
+UINT64_C(0x6646287ee2a98083),
+UINT64_C(0x35cd8bb5e1fa7256),
+UINT64_C(0xb72fe6e16b6fb4e6),
+UINT64_C(0xf1397a9f1db4f5d9),
+UINT64_C(0x31f25047faa8e5d4),
+UINT64_C(0xec616a6e46e96dec),
+UINT64_C(0xae0c5e0f7b5d1449),
+UINT64_C(0xa517e799c5c6e32f),
+UINT64_C(0xc1276908f843b688),
+UINT64_C(0xaf7e924d738d87ec),
+UINT64_C(0x1c3f3ba863d5c7d1),
+} },
+ { 4, {
+UINT64_C(0x437057a4eb7c3a13),
+UINT64_C(0xe95a0d7fd8c1832c),
+UINT64_C(0x71807ff81a0c627e),
+UINT64_C(0xfa40f34634632cd2),
+UINT64_C(0x39cf61fc694b95b7),
+UINT64_C(0x9ca3d6e037621a02),
+UINT64_C(0x7be965236729c7d3),
+UINT64_C(0xb95fba07afa980ac),
+UINT64_C(0x91424978ab94232),
+UINT64_C(0x565eb8170fdae341),
+UINT64_C(0x0744508beb95a6bb),
+UINT64_C(0xf2426b33aa0a601d),
+UINT64_C(0x7ddc1fcd0bfec893),
+UINT64_C(0x9e09fedd4af1ff3d),
+UINT64_C(0xbe77c1bed02132e7),
+UINT64_C(0x61e4f6e3e88d34d4),
+} },
+ { UINT64_MAX, {
+UINT64_C(0x8f5520d52a7ead08),
+UINT64_C(0xc476a018caa1802d),
+UINT64_C(0x81de31c0d260469e),
+UINT64_C(0xbf658d7e065f3c2f),
+UINT64_C(0x913593fda1bca32a),
+UINT64_C(0xbb535e93941ba525),
+UINT64_C(0x5ecda415c3c6dfde),
+UINT64_C(0xc487398fc9de9ae2),
+UINT64_C(0xa06746dbb57c4d62),
+UINT64_C(0x9d414196fdf05c8a),
+UINT64_C(0x41cf1af9a178c669),
+UINT64_C(0x0b3b3a95e78839f9),
+UINT64_C(0x7aaab30444aefc7e),
+UINT64_C(0x7b251ec961f341b1),
+UINT64_C(0x30ed32acf367205f),
+UINT64_C(0xc6ca62fc772728b0),
+} },
+};
+
+#define nr_tests (sizeof tests / sizeof tests[0])
+
+int
+main (void)
+{
+ size_t i, j;
+ uint64_t r;
+ unsigned errors = 0;
+
+ for (i = 0; i < nr_tests; ++i) {
+ struct random_state state;
+
+ printf ("seed: %" PRIu64 "\n", tests[i].seed);
+ xsrandom (tests[i].seed, &state);
+ for (j = 0; j < LEN; ++j) {
+ r = xrandom (&state);
+ if (tests[i].vector[j] != r) {
+ printf ("\texpected: 0x%" PRIx64 "\tactual: 0x%" PRIx64 "\n",
+ tests[i].vector[j], r);
+ errors++;
+ }
+ }
+ }
+
+ if (errors > 0) {
+ fprintf (stderr, "random vector does not match expected\n");
+ exit (EXIT_FAILURE);
+ }
+
+ printf ("test successful\n");
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <assert.h>
+#include <sys/time.h>
+
+#include "tvdiff.h"
+
+/* This is mainly a test of the compiler and platform rather than our
+ * implementation.
+ */
+
+int
+main (void)
+{
+ struct timeval tv1, tv2;
+
+ tv1.tv_sec = 1000;
+ tv1.tv_usec = 1;
+ assert (tvdiff_usec (&tv1, &tv1) == 0);
+ tv2.tv_sec = 1000;
+ tv2.tv_usec = 2;
+ assert (tvdiff_usec (&tv1, &tv2) == 1);
+ assert (tvdiff_usec (&tv2, &tv1) == -1);
+ tv2.tv_sec = 1000;
+ tv2.tv_usec = 3;
+ assert (tvdiff_usec (&tv1, &tv2) == 2);
+ assert (tvdiff_usec (&tv2, &tv1) == -2);
+ tv2.tv_sec = 1001;
+ tv2.tv_usec = 0;
+ assert (tvdiff_usec (&tv1, &tv2) == 999999);
+ assert (tvdiff_usec (&tv2, &tv1) == -999999);
+
+ tv1.tv_sec = 1000;
+ tv1.tv_usec = 999999;
+ tv2.tv_sec = 1001;
+ tv2.tv_usec = 1;
+ assert (tvdiff_usec (&tv1, &tv2) == 2);
+ assert (tvdiff_usec (&tv2, &tv1) == -2);
+
+ /* Test that an arbitrary tv is equal to itself. */
+ gettimeofday (&tv1, NULL);
+ assert (tvdiff_usec (&tv1, &tv1) == 0);
+
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_TVDIFF_H
+#define NBDKIT_TVDIFF_H
+
+/* Compute struct timeval differences. */
+
+#include <config.h>
+
+#include <sys/time.h>
+
+/* Return the number of µs (microseconds) in y - x. */
+static int64_t
+tvdiff_usec (const struct timeval *x, const struct timeval *y)
+{
+ int64_t usec;
+
+ usec = (y->tv_sec - x->tv_sec) * 1000000;
+ usec += y->tv_usec - x->tv_usec;
+ return usec;
+}
+
+#endif /* NBDKIT_TVDIFF_H */
--- /dev/null
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = \
+ protocol.h \
+ protostrings.c \
+ protostrings.sed
+
+noinst_LTLIBRARIES = libprotocol.la
+
+libprotocol_la_SOURCES = \
+ protostrings.c \
+ protocol.h
+libprotocol_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+
+# protostrings.c is generated from the protocol.h header file where it
+# is used to map NBD protocol flags to strings.
+
+BUILT_SOURCES = protostrings.c
+CLEANFILES += protostrings.c
+protostrings.c: protocol.h protostrings.sed Makefile
+ rm -f $@ $@-t
+ $(SED) -n -f $(srcdir)/protostrings.sed < $< > $@-t
+ mv $@-t $@
+ chmod 0444 $@
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
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+ $$unique
+
+GTAGS:
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+cscopelist: cscopelist-am
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+ list='$(am__tagged_files)'; \
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+ for i in $$list; do \
+ if test -f "$$i"; then \
+ echo "$(subdir)/$$i"; \
+ else \
+ echo "$$sdir/$$i"; \
+ fi; \
+ done >> $(top_builddir)/cscope.files
+
+distclean-tags:
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+distdir: $(BUILT_SOURCES)
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+ list='$(DISTFILES)'; \
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+ sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+ sort -u` ;; \
+ esac; \
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+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+ fi
+mostlyclean-generic:
+
+clean-generic:
+ -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
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+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+ -test -z "$(BUILT_SOURCES)" || rm -f $(BUILT_SOURCES)
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-noinstLTLIBRARIES \
+ mostlyclean-am
+
+distclean: distclean-am
+ -rm -f ./$(DEPDIR)/libprotocol_la-protostrings.Plo
+ -rm -f Makefile
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+ distclean-tags
+
+dvi: dvi-am
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+ -rm -f ./$(DEPDIR)/libprotocol_la-protostrings.Plo
+ -rm -f Makefile
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+
+mostlyclean: mostlyclean-am
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+ mostlyclean-libtool
+
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+
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+ clean-generic clean-libtool clean-noinstLTLIBRARIES \
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+ install-exec install-exec-am install-html install-html-am \
+ install-info install-info-am install-man install-pdf \
+ install-pdf-am install-ps install-ps-am install-strip \
+ installcheck installcheck-am installdirs maintainer-clean \
+ maintainer-clean-generic mostlyclean mostlyclean-compile \
+ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+ tags tags-am uninstall uninstall-am
+
+.PRECIOUS: Makefile
+
+protostrings.c: protocol.h protostrings.sed Makefile
+ rm -f $@ $@-t
+ $(SED) -n -f $(srcdir)/protostrings.sed < $< > $@-t
+ mv $@-t $@
+ chmod 0444 $@
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_PROTOCOL_H
+#define NBDKIT_PROTOCOL_H
+
+#include <stdint.h>
+
+/* Note that all NBD fields are sent on the wire in network byte
+ * order, so we must use beXXtoh or htobeXX when reading or writing
+ * these structures.
+ */
+
+/* Old-style handshake. */
+struct old_handshake {
+ char nbdmagic[8]; /* "NBDMAGIC" */
+ uint64_t version; /* OLD_VERSION */
+ uint64_t exportsize;
+ uint16_t gflags; /* global flags */
+ uint16_t eflags; /* per-export flags */
+ char zeroes[124]; /* must be sent as zero bytes */
+} __attribute__((packed));
+
+#define OLD_VERSION UINT64_C(0x420281861253)
+
+/* New-style handshake. */
+struct new_handshake {
+ char nbdmagic[8]; /* "NBDMAGIC" */
+ uint64_t version; /* NEW_VERSION */
+ uint16_t gflags; /* global flags */
+} __attribute__((packed));
+
+#define NEW_VERSION UINT64_C(0x49484156454F5054)
+
+/* New-style handshake option (sent by the client to us). */
+struct new_option {
+ uint64_t version; /* NEW_VERSION */
+ uint32_t option; /* NBD_OPT_* */
+ uint32_t optlen; /* option data length */
+ /* option data follows */
+} __attribute__((packed));
+
+/* Fixed newstyle handshake reply message. */
+struct fixed_new_option_reply {
+ uint64_t magic; /* NBD_REP_MAGIC */
+ uint32_t option; /* option we are replying to */
+ uint32_t reply; /* NBD_REP_* */
+ uint32_t replylen;
+} __attribute__((packed));
+
+#define NBD_REP_MAGIC UINT64_C(0x3e889045565a9)
+
+/* Global flags. */
+extern const char *name_of_nbd_global_flag (int);
+#define NBD_FLAG_FIXED_NEWSTYLE 1
+#define NBD_FLAG_NO_ZEROES 2
+
+/* Per-export flags. */
+extern const char *name_of_nbd_flag (int);
+#define NBD_FLAG_HAS_FLAGS (1 << 0)
+#define NBD_FLAG_READ_ONLY (1 << 1)
+#define NBD_FLAG_SEND_FLUSH (1 << 2)
+#define NBD_FLAG_SEND_FUA (1 << 3)
+#define NBD_FLAG_ROTATIONAL (1 << 4)
+#define NBD_FLAG_SEND_TRIM (1 << 5)
+#define NBD_FLAG_SEND_WRITE_ZEROES (1 << 6)
+#define NBD_FLAG_SEND_DF (1 << 7)
+#define NBD_FLAG_CAN_MULTI_CONN (1 << 8)
+
+/* NBD options (new style handshake only). */
+extern const char *name_of_nbd_opt (int);
+#define NBD_OPT_EXPORT_NAME 1
+#define NBD_OPT_ABORT 2
+#define NBD_OPT_LIST 3
+#define NBD_OPT_STARTTLS 5
+#define NBD_OPT_INFO 6
+#define NBD_OPT_GO 7
+#define NBD_OPT_STRUCTURED_REPLY 8
+#define NBD_OPT_LIST_META_CONTEXT 9
+#define NBD_OPT_SET_META_CONTEXT 10
+
+#define NBD_REP_ERR(val) (0x80000000 | (val))
+#define NBD_REP_IS_ERR(val) (!!((val) & 0x80000000))
+
+extern const char *name_of_nbd_rep (int);
+#define NBD_REP_ACK 1
+#define NBD_REP_SERVER 2
+#define NBD_REP_INFO 3
+#define NBD_REP_META_CONTEXT 4
+#define NBD_REP_ERR_UNSUP NBD_REP_ERR (1)
+#define NBD_REP_ERR_POLICY NBD_REP_ERR (2)
+#define NBD_REP_ERR_INVALID NBD_REP_ERR (3)
+#define NBD_REP_ERR_PLATFORM NBD_REP_ERR (4)
+#define NBD_REP_ERR_TLS_REQD NBD_REP_ERR (5)
+
+extern const char *name_of_nbd_info (int);
+#define NBD_INFO_EXPORT 0
+
+/* NBD_INFO_EXPORT reply (follows fixed_new_option_reply). */
+struct fixed_new_option_reply_info_export {
+ uint16_t info; /* NBD_INFO_EXPORT */
+ uint64_t exportsize; /* size of export */
+ uint16_t eflags; /* per-export flags */
+} __attribute__((packed));
+
+/* NBD_REP_META_CONTEXT reply (follows fixed_new_option_reply). */
+struct fixed_new_option_reply_meta_context {
+ uint32_t context_id; /* metadata context ID */
+ /* followed by a string */
+} __attribute__((packed));
+
+/* NBD_REPLY_TYPE_BLOCK_STATUS block descriptor. */
+struct block_descriptor {
+ uint32_t length; /* length of block */
+ uint32_t status_flags; /* block type (hole etc) */
+} __attribute__((packed));
+
+/* New-style handshake server reply when using NBD_OPT_EXPORT_NAME.
+ * Modern clients use NBD_OPT_GO instead of this.
+ */
+struct new_handshake_finish {
+ uint64_t exportsize;
+ uint16_t eflags; /* per-export flags */
+ char zeroes[124]; /* must be sent as zero bytes */
+} __attribute__((packed));
+
+/* Request (client -> server). */
+struct request {
+ uint32_t magic; /* NBD_REQUEST_MAGIC. */
+ uint16_t flags; /* Request flags. */
+ uint16_t type; /* Request type. */
+ uint64_t handle; /* Opaque handle. */
+ uint64_t offset; /* Request offset. */
+ uint32_t count; /* Request length. */
+} __attribute__((packed));
+
+/* Simple reply (server -> client). */
+struct simple_reply {
+ uint32_t magic; /* NBD_SIMPLE_REPLY_MAGIC. */
+ uint32_t error; /* NBD_SUCCESS or one of NBD_E*. */
+ uint64_t handle; /* Opaque handle. */
+} __attribute__((packed));
+
+/* Structured reply (server -> client). */
+struct structured_reply {
+ uint32_t magic; /* NBD_STRUCTURED_REPLY_MAGIC. */
+ uint16_t flags; /* NBD_REPLY_FLAG_* */
+ uint16_t type; /* NBD_REPLY_TYPE_* */
+ uint64_t handle; /* Opaque handle. */
+ uint32_t length; /* Length of payload which follows. */
+} __attribute__((packed));
+
+struct structured_reply_offset_data {
+ uint64_t offset; /* offset */
+ /* Followed by data. */
+} __attribute__((packed));
+
+struct structured_reply_error {
+ uint32_t error; /* NBD_E* error number */
+ uint16_t len; /* Length of human readable error. */
+ /* Followed by human readable error string. */
+} __attribute__((packed));
+
+#define NBD_REQUEST_MAGIC 0x25609513
+#define NBD_SIMPLE_REPLY_MAGIC 0x67446698
+#define NBD_STRUCTURED_REPLY_MAGIC 0x668e33ef
+
+/* Structured reply flags. */
+extern const char *name_of_nbd_reply_flag (int);
+#define NBD_REPLY_FLAG_DONE (1<<0)
+
+#define NBD_REPLY_TYPE_ERR(val) ((1<<15) | (val))
+#define NBD_REPLY_TYPE_IS_ERR(val) (!!((val) & (1<<15)))
+
+/* Structured reply types. */
+extern const char *name_of_nbd_reply_type (int);
+#define NBD_REPLY_TYPE_NONE 0
+#define NBD_REPLY_TYPE_OFFSET_DATA 1
+#define NBD_REPLY_TYPE_OFFSET_HOLE 2
+#define NBD_REPLY_TYPE_BLOCK_STATUS 5
+#define NBD_REPLY_TYPE_ERROR NBD_REPLY_TYPE_ERR (1)
+#define NBD_REPLY_TYPE_ERROR_OFFSET NBD_REPLY_TYPE_ERR (2)
+
+/* NBD commands. */
+extern const char *name_of_nbd_cmd (int);
+#define NBD_CMD_READ 0
+#define NBD_CMD_WRITE 1
+#define NBD_CMD_DISC 2 /* Disconnect. */
+#define NBD_CMD_FLUSH 3
+#define NBD_CMD_TRIM 4
+#define NBD_CMD_WRITE_ZEROES 6
+#define NBD_CMD_BLOCK_STATUS 7
+
+extern const char *name_of_nbd_cmd_flag (int);
+#define NBD_CMD_FLAG_FUA (1<<0)
+#define NBD_CMD_FLAG_NO_HOLE (1<<1)
+#define NBD_CMD_FLAG_DF (1<<2)
+#define NBD_CMD_FLAG_REQ_ONE (1<<3)
+
+/* Error codes (previously errno).
+ * See http://git.qemu.org/?p=qemu.git;a=commitdiff;h=ca4414804114fd0095b317785bc0b51862e62ebb
+ */
+extern const char *name_of_nbd_error (int);
+#define NBD_SUCCESS 0
+#define NBD_EPERM 1
+#define NBD_EIO 5
+#define NBD_ENOMEM 12
+#define NBD_EINVAL 22
+#define NBD_ENOSPC 28
+#define NBD_EOVERFLOW 75
+#define NBD_ESHUTDOWN 108
+
+#endif /* NBDKIT_PROTOCOL_H */
--- /dev/null
+/* Generated from protocol.h by protostrings.sed. */
+#include "protocol.h"
+
+const char *name_of_nbd_global_flag (int fl) {
+ switch (fl) {
+ case NBD_FLAG_FIXED_NEWSTYLE: return "NBD_FLAG_FIXED_NEWSTYLE";
+ case NBD_FLAG_NO_ZEROES: return "NBD_FLAG_NO_ZEROES";
+ default: return "unknown";
+ }
+}
+const char *name_of_nbd_flag (int fl) {
+ switch (fl) {
+ case NBD_FLAG_HAS_FLAGS: return "NBD_FLAG_HAS_FLAGS";
+ case NBD_FLAG_READ_ONLY: return "NBD_FLAG_READ_ONLY";
+ case NBD_FLAG_SEND_FLUSH: return "NBD_FLAG_SEND_FLUSH";
+ case NBD_FLAG_SEND_FUA: return "NBD_FLAG_SEND_FUA";
+ case NBD_FLAG_ROTATIONAL: return "NBD_FLAG_ROTATIONAL";
+ case NBD_FLAG_SEND_TRIM: return "NBD_FLAG_SEND_TRIM";
+ case NBD_FLAG_SEND_WRITE_ZEROES: return "NBD_FLAG_SEND_WRITE_ZEROES";
+ case NBD_FLAG_SEND_DF: return "NBD_FLAG_SEND_DF";
+ case NBD_FLAG_CAN_MULTI_CONN: return "NBD_FLAG_CAN_MULTI_CONN";
+ default: return "unknown";
+ }
+}
+const char *name_of_nbd_opt (int fl) {
+ switch (fl) {
+ case NBD_OPT_EXPORT_NAME: return "NBD_OPT_EXPORT_NAME";
+ case NBD_OPT_ABORT: return "NBD_OPT_ABORT";
+ case NBD_OPT_LIST: return "NBD_OPT_LIST";
+ case NBD_OPT_STARTTLS: return "NBD_OPT_STARTTLS";
+ case NBD_OPT_INFO: return "NBD_OPT_INFO";
+ case NBD_OPT_GO: return "NBD_OPT_GO";
+ case NBD_OPT_STRUCTURED_REPLY: return "NBD_OPT_STRUCTURED_REPLY";
+ case NBD_OPT_LIST_META_CONTEXT: return "NBD_OPT_LIST_META_CONTEXT";
+ case NBD_OPT_SET_META_CONTEXT: return "NBD_OPT_SET_META_CONTEXT";
+ default: return "unknown";
+ }
+}
+const char *name_of_nbd_rep (int fl) {
+ switch (fl) {
+ case NBD_REP_ACK: return "NBD_REP_ACK";
+ case NBD_REP_SERVER: return "NBD_REP_SERVER";
+ case NBD_REP_INFO: return "NBD_REP_INFO";
+ case NBD_REP_META_CONTEXT: return "NBD_REP_META_CONTEXT";
+ case NBD_REP_ERR_UNSUP: return "NBD_REP_ERR_UNSUP";
+ case NBD_REP_ERR_POLICY: return "NBD_REP_ERR_POLICY";
+ case NBD_REP_ERR_INVALID: return "NBD_REP_ERR_INVALID";
+ case NBD_REP_ERR_PLATFORM: return "NBD_REP_ERR_PLATFORM";
+ case NBD_REP_ERR_TLS_REQD: return "NBD_REP_ERR_TLS_REQD";
+ default: return "unknown";
+ }
+}
+const char *name_of_nbd_info (int fl) {
+ switch (fl) {
+ case NBD_INFO_EXPORT: return "NBD_INFO_EXPORT";
+ default: return "unknown";
+ }
+}
+const char *name_of_nbd_reply_flag (int fl) {
+ switch (fl) {
+ case NBD_REPLY_FLAG_DONE: return "NBD_REPLY_FLAG_DONE";
+ default: return "unknown";
+ }
+}
+const char *name_of_nbd_reply_type (int fl) {
+ switch (fl) {
+ case NBD_REPLY_TYPE_NONE: return "NBD_REPLY_TYPE_NONE";
+ case NBD_REPLY_TYPE_OFFSET_DATA: return "NBD_REPLY_TYPE_OFFSET_DATA";
+ case NBD_REPLY_TYPE_OFFSET_HOLE: return "NBD_REPLY_TYPE_OFFSET_HOLE";
+ case NBD_REPLY_TYPE_BLOCK_STATUS: return "NBD_REPLY_TYPE_BLOCK_STATUS";
+ case NBD_REPLY_TYPE_ERROR: return "NBD_REPLY_TYPE_ERROR";
+ case NBD_REPLY_TYPE_ERROR_OFFSET: return "NBD_REPLY_TYPE_ERROR_OFFSET";
+ default: return "unknown";
+ }
+}
+const char *name_of_nbd_cmd (int fl) {
+ switch (fl) {
+ case NBD_CMD_READ: return "NBD_CMD_READ";
+ case NBD_CMD_WRITE: return "NBD_CMD_WRITE";
+ case NBD_CMD_DISC: return "NBD_CMD_DISC";
+ case NBD_CMD_FLUSH: return "NBD_CMD_FLUSH";
+ case NBD_CMD_TRIM: return "NBD_CMD_TRIM";
+ case NBD_CMD_WRITE_ZEROES: return "NBD_CMD_WRITE_ZEROES";
+ case NBD_CMD_BLOCK_STATUS: return "NBD_CMD_BLOCK_STATUS";
+ default: return "unknown";
+ }
+}
+const char *name_of_nbd_cmd_flag (int fl) {
+ switch (fl) {
+ case NBD_CMD_FLAG_FUA: return "NBD_CMD_FLAG_FUA";
+ case NBD_CMD_FLAG_NO_HOLE: return "NBD_CMD_FLAG_NO_HOLE";
+ case NBD_CMD_FLAG_DF: return "NBD_CMD_FLAG_DF";
+ case NBD_CMD_FLAG_REQ_ONE: return "NBD_CMD_FLAG_REQ_ONE";
+ default: return "unknown";
+ }
+}
+const char *name_of_nbd_error (int fl) {
+ switch (fl) {
+ case NBD_SUCCESS: return "NBD_SUCCESS";
+ case NBD_EPERM: return "NBD_EPERM";
+ case NBD_EIO: return "NBD_EIO";
+ case NBD_ENOMEM: return "NBD_ENOMEM";
+ case NBD_EINVAL: return "NBD_EINVAL";
+ case NBD_ENOSPC: return "NBD_ENOSPC";
+ case NBD_EOVERFLOW: return "NBD_EOVERFLOW";
+ case NBD_ESHUTDOWN: return "NBD_ESHUTDOWN";
+ default: return "unknown";
+ }
+}
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Generate the protostrings.c file from protocol.h.
+
+# Prologue.
+1i\
+/* Generated from protocol.h by protostrings.sed. */\
+\#include "protocol.h"\
+
+
+# Match the precise sections of the source file.
+/^extern const char \*name_of_/,/^$/ {
+
+ # Convert extern function prototype into a definition.
+ s/extern \(const char \*name_of_.*\) (int);/\1 (int fl) {\
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+
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--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+noinst_LTLIBRARIES = libregions.la
+
+libregions_la_SOURCES = \
+ regions.c \
+ regions.h
+libregions_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include
+libregions_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
--- /dev/null
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+@am__fastdepCC_TRUE@ $(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(libregions_la_CPPFLAGS) $(CPPFLAGS) $(libregions_la_CFLAGS) $(CFLAGS) -MT libregions_la-regions.lo -MD -MP -MF $(DEPDIR)/libregions_la-regions.Tpo -c -o libregions_la-regions.lo `test -f 'regions.c' || echo '$(srcdir)/'`regions.c
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+
+mostlyclean-libtool:
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+
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+ fi
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+
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+
+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <assert.h>
+
+#include <nbdkit-plugin.h>
+
+#include "isaligned.h"
+#include "regions.h"
+
+void
+init_regions (struct regions *regions)
+{
+ regions->regions = NULL;
+ regions->nr_regions = 0;
+}
+
+void
+free_regions (struct regions *regions)
+{
+ /* We don't need to free the data since that is not owned by the
+ * regions structure.
+ */
+ free (regions->regions);
+}
+
+/* Find the region corresponding to the given offset. Use region->end
+ * to find the end of the region.
+ */
+static int
+compare_offset (const void *offsetp, const void *regionp)
+{
+ const uint64_t offset = *(uint64_t *)offsetp;
+ const struct region *region = (struct region *)regionp;
+
+ if (offset < region->start) return -1;
+ if (offset > region->end) return 1;
+ return 0;
+}
+
+const struct region *
+find_region (const struct regions *regions, uint64_t offset)
+{
+ return bsearch (&offset, regions->regions, regions->nr_regions,
+ sizeof (struct region), compare_offset);
+}
+
+/* This is the low level function for constructing the list of
+ * regions. It appends one region to the list, checking that the
+ * invariants described above (about the regions being non-overlapping
+ * and contiguous) is maintained. Note it is not possible to
+ * construct regions out of order using this function.
+ */
+static int __attribute__((__nonnull__ (1)))
+append_one_region (struct regions *regions, struct region region)
+{
+ struct region *p;
+
+ /* The assertions in this function are meant to maintain the
+ * invariant about the array as described at the top of this file.
+ */
+ assert (region.start == virtual_size (regions));
+ assert (region.len > 0);
+ assert (region.end >= region.start);
+ assert (region.len == region.end - region.start + 1);
+
+ p = realloc (regions->regions,
+ (regions->nr_regions+1) * sizeof (struct region));
+ if (p == NULL) {
+ nbdkit_error ("realloc: %m");
+ return -1;
+ }
+ regions->regions = p;
+ regions->regions[regions->nr_regions] = region;
+ regions->nr_regions++;
+
+ return 0;
+}
+
+static int
+append_padding (struct regions *regions, uint64_t alignment)
+{
+ struct region region;
+
+ assert (is_power_of_2 (alignment));
+
+ region.start = virtual_size (regions);
+ if (IS_ALIGNED (region.start, alignment))
+ return 0; /* nothing to do */
+ region.end = (region.start & ~(alignment-1)) + alignment - 1;
+ region.len = region.end - region.start + 1;
+ region.type = region_zero;
+ region.description = "padding";
+ return append_one_region (regions, region);
+}
+
+int
+append_region_len (struct regions *regions,
+ const char *description, uint64_t len,
+ uint64_t pre_aligment, uint64_t post_alignment,
+ enum region_type type, ...)
+{
+ struct region region;
+
+ /* Pre-alignment. */
+ if (pre_aligment != 0) {
+ if (append_padding (regions, pre_aligment) == -1)
+ return -1;
+ assert (IS_ALIGNED (virtual_size (regions), pre_aligment));
+ }
+
+ /* Main region. */
+ region.description = description;
+ region.start = virtual_size (regions);
+ region.len = len;
+ region.end = region.start + region.len - 1;
+ region.type = type;
+ if (type == region_file) {
+ va_list ap;
+ size_t i;
+
+ va_start (ap, type);
+ i = va_arg (ap, size_t);
+ va_end (ap);
+ region.u.i = i;
+ }
+ else if (type == region_data) {
+ va_list ap;
+ const unsigned char *data;
+
+ va_start (ap, type);
+ data = va_arg (ap, const unsigned char *);
+ va_end (ap);
+ region.u.data = data;
+ }
+ if (append_one_region (regions, region) == -1)
+ return -1;
+
+ /* Post-alignment. */
+ if (post_alignment != 0) {
+ if (append_padding (regions, post_alignment) == -1)
+ return -1;
+ assert (IS_ALIGNED (virtual_size (regions), post_alignment));
+ }
+
+ return 0;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_REGIONS_H
+#define NBDKIT_REGIONS_H
+
+#include <stdint.h>
+#include <stdarg.h>
+#include <assert.h>
+
+/* This defines a very simple structure used to define the virtual
+ * disk in the partitioning and floppy plugins.
+ *
+ * We split the virtual disk into non-overlapping, contiguous regions.
+ * These are stored in an array, ordered by address.
+ *
+ * Each region can be one of several types, referring to a backing
+ * file, some data stored in memory, or zero padding.
+ */
+
+/* Region type. */
+enum region_type {
+ region_file, /* contents of the i'th file */
+ region_data, /* pointer to in-memory data */
+ region_zero, /* padding */
+};
+
+/* Region. */
+struct region {
+ uint64_t start, len, end; /* byte offsets; end = start + len - 1 */
+ enum region_type type;
+ union {
+ size_t i; /* region_file: i'th file */
+ const unsigned char *data; /* region_data: data */
+ } u;
+
+ /* Optional name or description of this region. This is not used by
+ * the regions code but can be added to regions to make debugging
+ * easier.
+ */
+ const char *description;
+};
+
+/* Array of regions. */
+struct regions {
+ struct region *regions;
+ size_t nr_regions;
+};
+
+extern void init_regions (struct regions *regions)
+ __attribute__((__nonnull__ (1)));
+extern void free_regions (struct regions *regions)
+ __attribute__((__nonnull__ (1)));
+
+/* Return the number of regions. */
+static inline size_t __attribute__((__nonnull__ (1)))
+nr_regions (struct regions *regions)
+{
+ return regions->nr_regions;
+}
+
+/* Return the virtual size of the disk. */
+static inline int64_t __attribute__((__nonnull__ (1)))
+virtual_size (struct regions *regions)
+{
+ if (regions->nr_regions == 0)
+ return 0;
+ else
+ return regions->regions[regions->nr_regions-1].end + 1;
+}
+
+/* Look up the region corresponding to the given offset. If the
+ * offset is inside the disk image then this cannot return NULL.
+ */
+extern const struct region *find_region (const struct regions *regions,
+ uint64_t offset)
+ __attribute__((__nonnull__ (1)));
+
+/* Append one region of a given length, plus up to two optional
+ * padding regions.
+ *
+ * pre_aligment (if != 0) describes the required alignment of this
+ * region. A padding region of type region_zero is inserted before
+ * the main region if required.
+ *
+ * post_alignment (if != 0) describes the required alignment after
+ * this region. A padding region of type region_zero is inserted
+ * after the main region if required.
+ *
+ * If type == region_file, it must be followed by u.i parameter.
+ * If type == region_data, it must be followed by u.data parameter.
+ */
+extern int append_region_len (struct regions *regions,
+ const char *description, uint64_t len,
+ uint64_t pre_aligment, uint64_t post_alignment,
+ enum region_type type, ...);
+
+#if 0
+/* Same as append_region_len (above) but instead of specifying the
+ * size of the main region, specify the end byte as an offset. Note
+ * the end byte is included in the region, it's is NOT the end+1 byte.
+ */
+extern int append_region_end (struct regions *regions,
+ const char *description, uint64_t end,
+ uint64_t pre_aligment, uint64_t post_alignment,
+ enum region_type type, ...);
+#endif
+
+/* Used when iterating over the list of regions. */
+static inline const struct region * __attribute__((__nonnull__ (1)))
+get_region (const struct regions *regions, size_t i)
+{
+ assert (i < regions->nr_regions);
+ return ®ions->regions[i];
+}
+
+#endif /* NBDKIT_REGIONS_H */
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+noinst_LTLIBRARIES = libsparse.la
+
+libsparse_la_SOURCES = \
+ sparse.c \
+ sparse.h
+libsparse_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include
+libsparse_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
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+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <errno.h>
+#include <assert.h>
+
+#include <nbdkit-plugin.h>
+
+#include "iszero.h"
+#include "sparse.h"
+
+/* Two level directory for the sparse array.
+ *
+ * nbdkit supports disk sizes up to 2⁶³-1. The aim of the sparse
+ * array is to support up to 63 bit images for testing, although it
+ * won't necessarily be efficient for that use. However it should
+ * also be efficient for more reasonable sized disks.
+ *
+ * Although the CPU implements effectively the same kind of data
+ * structure (page tables) there are some advantages of reimplementing
+ * this:
+ *
+ * 1. Support for 32 bit (or even 64 bit since the virtual memory
+ * address space on 64 bit machines is not 63 bits in size).
+ *
+ * 2. In Linux, overcommit defaults prevent use of virtual memory as a
+ * sparse array without intrusive system configuration changes.
+ *
+ * 3. Could choose a page size which is more appropriate for disk
+ * images, plus some architectures have much larger page sizes than
+ * others making behaviour inconsistent across arches.
+ *
+ * To achieve this we use a B-Tree-like structure. The L1 directory
+ * contains an ordered, non-overlapping, non-contiguous list of
+ * (offset, pointer to L2 directory).
+ *
+ * Updating the L1 directory requires a linear scan but that operation
+ * should be very rare. Because the L1 directory is stored in order
+ * of offset, we can use an efficient binary search for lookups.
+ *
+ * Each L1 directory entry can address up to PAGE_SIZE*L2_SIZE bytes
+ * in the virtual disk image. With the current parameters this is
+ * 128MB, which is enough for a 100MB image to fit into a single L1
+ * directory, or a 10GB image to fit into 80 L1 entries. The page
+ * pointers in the L2 directory can be NULL (meaning no page / all
+ * zeroes).
+ *
+ * ┌────────────────────┐
+ * │ L1 directory │ ┌────────────────────┐
+ * │ offset, entry 0 ─────────▶ | L2 directory |
+ * │ offset, entry 1 │ | page 0 ─────────▶ page
+ * │ offset, entry 2 │ │ page 1 ─────────▶ page
+ * │ ... │ │ page 2 ─────────▶ page
+ * └────────────────────┘ │ ... │
+ * │ page L2_SIZE-1 ─────────▶ page
+ * └────────────────────┘
+ */
+#define PAGE_SIZE 32768
+#define L2_SIZE 4096
+
+struct l1_entry {
+ uint64_t offset; /* Virtual offset of this entry. */
+ void **l2_dir; /* Pointer to L2 directory. */
+};
+
+struct sparse_array {
+ struct l1_entry *l1_dir; /* L1 directory. */
+ size_t l1_size; /* Number of entries in L1 directory. */
+ bool debug;
+};
+
+/* Free L1 and/or L2 directories. */
+static void
+free_l2_dir (void **l2_dir)
+{
+ size_t i;
+
+ for (i = 0; i < L2_SIZE; ++i)
+ free (l2_dir[i]);
+ free (l2_dir);
+}
+
+void
+free_sparse_array (struct sparse_array *sa)
+{
+ size_t i;
+
+ if (sa) {
+ for (i = 0; i < sa->l1_size; ++i)
+ free_l2_dir (sa->l1_dir[i].l2_dir);
+ free (sa->l1_dir);
+ free (sa);
+ }
+}
+
+struct sparse_array *
+alloc_sparse_array (bool debug)
+{
+ struct sparse_array *sa;
+
+ sa = malloc (sizeof *sa);
+ if (sa == NULL)
+ return NULL;
+ sa->l1_dir = NULL;
+ sa->l1_size = 0;
+ sa->debug = debug;
+ return sa;
+}
+
+/* Comparison function used when searching through the L1 directory. */
+static int
+compare_l1_offsets (const void *offsetp, const void *entryp)
+{
+ const uint64_t offset = *(uint64_t *)offsetp;
+ const struct l1_entry *e = entryp;
+
+ if (offset < e->offset) return -1;
+ if (offset >= e->offset + PAGE_SIZE*L2_SIZE) return 1;
+ return 0;
+}
+
+/* Insert an entry in the L1 directory, keeping it ordered by offset.
+ * This involves an expensive linear scan but should be very rare.
+ */
+static int
+insert_l1_entry (struct sparse_array *sa, const struct l1_entry *entry)
+{
+ size_t i;
+ struct l1_entry *old_l1_dir = sa->l1_dir;
+
+ /* The l1_dir always ends up one bigger, so reallocate it first. */
+ sa->l1_dir = realloc (sa->l1_dir, (sa->l1_size+1) * sizeof (struct l1_entry));
+ if (sa->l1_dir == NULL) {
+ sa->l1_dir = old_l1_dir;
+ nbdkit_error ("realloc");
+ return -1;
+ }
+
+ for (i = 0; i < sa->l1_size; ++i) {
+ if (entry->offset < sa->l1_dir[i].offset) {
+ /* Insert new entry before i'th directory entry. */
+ memmove (&sa->l1_dir[i+1], &sa->l1_dir[i],
+ (sa->l1_size-i) * sizeof (struct l1_entry));
+ sa->l1_dir[i] = *entry;
+ sa->l1_size++;
+ if (sa->debug)
+ nbdkit_debug ("%s: inserted new L1 entry for %" PRIu64
+ " at l1_dir[%zu]",
+ __func__, entry->offset, i);
+ return 0;
+ }
+
+ /* This should never happens since each entry in the the L1
+ * directory is supposed to be unique.
+ */
+ assert (entry->offset != sa->l1_dir[i].offset);
+ }
+
+ /* Insert new entry at the end. */
+ sa->l1_dir[sa->l1_size] = *entry;
+ sa->l1_size++;
+ if (sa->debug)
+ nbdkit_debug ("%s: inserted new L1 entry for %" PRIu64
+ " at end of l1_dir", __func__, entry->offset);
+ return 0;
+}
+
+/* Look up a virtual offset, returning the address of the offset, the
+ * count of bytes to the end of the page, and a pointer to the L2
+ * directory entry containing the page pointer.
+ *
+ * If the create flag is set then a new page and/or directory will be
+ * allocated if necessary. Use this flag when writing.
+ *
+ * NULL may be returned normally if the page is not mapped (meaning it
+ * reads as zero). However if the create flag is set and NULL is
+ * returned, this indicates an error.
+ */
+static void *
+lookup (struct sparse_array *sa, uint64_t offset, bool create,
+ uint32_t *remaining, void ***l2_page)
+{
+ struct l1_entry *entry;
+ void **l2_dir;
+ uint64_t o;
+ void *page;
+ struct l1_entry new_entry;
+
+ *remaining = PAGE_SIZE - (offset & (PAGE_SIZE-1));
+
+ again:
+ /* Search the L1 directory. */
+ entry = bsearch (&offset, sa->l1_dir, sa->l1_size, sizeof (struct l1_entry),
+ compare_l1_offsets);
+
+ if (sa->debug) {
+ if (entry)
+ nbdkit_debug ("%s: search L1 dir: entry found: offset %" PRIu64,
+ __func__, entry->offset);
+ else
+ nbdkit_debug ("%s: search L1 dir: no entry found", __func__);
+ }
+
+ if (entry) {
+ l2_dir = entry->l2_dir;
+
+ /* Which page in the L2 directory? */
+ o = (offset - entry->offset) / PAGE_SIZE;
+ if (l2_page)
+ *l2_page = &l2_dir[o];
+ page = l2_dir[o];
+ if (!page && create) {
+ /* No page allocated. Allocate one if creating. */
+ page = calloc (PAGE_SIZE, 1);
+ if (page == NULL) {
+ nbdkit_error ("calloc");
+ return NULL;
+ }
+ l2_dir[o] = page;
+ }
+ if (!page)
+ return NULL;
+ else
+ return page + (offset & (PAGE_SIZE-1));
+ }
+
+ /* No L1 directory entry found. */
+ if (!create)
+ return NULL;
+
+ /* No L1 directory entry, and we're creating, so we need to allocate
+ * a new L1 directory entry and insert it in the L1 directory, and
+ * allocate the L2 directory with NULL page pointers. Then we can
+ * repeat the above search to create the page.
+ */
+ new_entry.offset = offset & ~(PAGE_SIZE*L2_SIZE-1);
+ new_entry.l2_dir = calloc (L2_SIZE, sizeof (void *));
+ if (new_entry.l2_dir == NULL) {
+ nbdkit_error ("calloc");
+ return NULL;
+ }
+ if (insert_l1_entry (sa, &new_entry) == -1) {
+ free (new_entry.l2_dir);
+ return NULL;
+ }
+ goto again;
+}
+
+void
+sparse_array_read (struct sparse_array *sa,
+ void *buf, uint32_t count, uint64_t offset)
+{
+ uint32_t n;
+ void *p;
+
+ while (count > 0) {
+ p = lookup (sa, offset, false, &n, NULL);
+ if (n > count)
+ n = count;
+
+ if (p == NULL)
+ memset (buf, 0, n);
+ else
+ memcpy (buf, p, n);
+
+ buf += n;
+ count -= n;
+ offset += n;
+ }
+}
+
+int
+sparse_array_write (struct sparse_array *sa,
+ const void *buf, uint32_t count, uint64_t offset)
+{
+ uint32_t n;
+ void *p;
+
+ while (count > 0) {
+ p = lookup (sa, offset, true, &n, NULL);
+ if (p == NULL)
+ return -1;
+
+ if (n > count)
+ n = count;
+ memcpy (p, buf, n);
+
+ buf += n;
+ count -= n;
+ offset += n;
+ }
+
+ return 0;
+}
+
+void
+sparse_array_zero (struct sparse_array *sa, uint32_t count, uint64_t offset)
+{
+ uint32_t n;
+ void *p;
+ void **l2_page;
+
+ while (count > 0) {
+ p = lookup (sa, offset, false, &n, &l2_page);
+ if (n > count)
+ n = count;
+
+ if (p) {
+ memset (p, 0, n);
+
+ /* If the whole page is now zero, free it. */
+ if (is_zero (*l2_page, PAGE_SIZE)) {
+ if (sa->debug)
+ nbdkit_debug ("%s: freeing zero page at offset %" PRIu64,
+ __func__, offset);
+ free (*l2_page);
+ *l2_page = NULL;
+ }
+ }
+
+ count -= n;
+ offset += n;
+ }
+}
+
+int
+sparse_array_extents (struct sparse_array *sa,
+ uint32_t count, uint64_t offset,
+ struct nbdkit_extents *extents)
+{
+ uint32_t n, type;
+ void *p;
+
+ while (count > 0) {
+ p = lookup (sa, offset, false, &n, NULL);
+
+ /* Work out the type of this extent. */
+ if (p == NULL)
+ /* No backing page, so it's a hole. */
+ type = NBDKIT_EXTENT_HOLE | NBDKIT_EXTENT_ZERO;
+ else {
+ if (is_zero (p, n))
+ /* A backing page and it's all zero, it's a zero extent. */
+ type = NBDKIT_EXTENT_ZERO;
+ else
+ /* Normal allocated data. */
+ type = 0;
+ }
+ if (nbdkit_add_extent (extents, offset, n, type) == -1)
+ return -1;
+
+ if (n > count)
+ n = count;
+
+ count -= n;
+ offset += n;
+ }
+
+ return 0;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_SPARSE_H
+#define NBDKIT_SPARSE_H
+
+#include <config.h>
+
+#include <stdbool.h>
+
+/* This library implements a sparse array of any size up to 2⁶³-1
+ * bytes.
+ *
+ * The array reads as zeroes until something is written.
+ *
+ * The implementation aims to be reasonably efficient for ordinary
+ * sized disks, while permitting huge (but sparse) disks for testing.
+ * Everything allocated has to be stored in memory. There is no
+ * temporary file backing.
+ *
+ * The implementation is not protected by locks and issuing parallel
+ * calls will cause corruption. If your plugin uses this library you
+ * will probably need to use a suitable thread model such as
+ * SERIALIZE_ALL_REQUESTS.
+ */
+struct sparse_array;
+
+/* Allocate the empty sparse array. */
+struct sparse_array *alloc_sparse_array (bool debug);
+
+/* Free sparse array. */
+extern void free_sparse_array (struct sparse_array *sa);
+
+/* Read bytes from the sparse array.
+ * Note this can never return an error and never allocates.
+ */
+extern void sparse_array_read (struct sparse_array *sa, void *buf,
+ uint32_t count, uint64_t offset)
+ __attribute__((__nonnull__ (1, 2)));
+
+/* Write bytes to the sparse array.
+ * This can allocate and can return an error.
+ */
+extern int sparse_array_write (struct sparse_array *sa, const void *buf,
+ uint32_t count, uint64_t offset)
+ __attribute__((__nonnull__ (1, 2)));
+
+/* Zero byte range in the sparse array.
+ *
+ * Zeroing and trimming are the same operation (this implementation
+ * does not preallocate, since it's not worthwhile for an in-memory
+ * data structure).
+ *
+ * This may free memory, but never returns an error.
+ */
+extern void sparse_array_zero (struct sparse_array *sa,
+ uint32_t count, uint64_t offset)
+ __attribute__((__nonnull__ (1)));
+
+/* Return information about allocated pages and holes. */
+extern int sparse_array_extents (struct sparse_array *sa,
+ uint32_t count, uint64_t offset,
+ struct nbdkit_extents *extents);
+
+#endif /* NBDKIT_SPARSE_H */
--- /dev/null
+# nbdkit
+# Copyright (C) 2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+noinst_LTLIBRARIES = libutils.la
+
+libutils_la_SOURCES = \
+ utils.c \
+ utils.h
+libutils_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+libutils_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+
+# Unit tests.
+
+TESTS = test-quotes
+check_PROGRAMS = test-quotes
+
+test_quotes_SOURCES = test-quotes.c utils.c utils.h
+test_quotes_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/utils
+test_quotes_CFLAGS = \
+ $(WARNINGS_CFLAGS)
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
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+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
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+# with or without modifications, as long as this notice is preserved.
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+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
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+#
+# * Redistributions of source code must retain the above copyright
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+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
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+ | $(am__create_global_log); \
+ } >$(TEST_SUITE_LOG).tmp || exit 1; \
+ mv $(TEST_SUITE_LOG).tmp $(TEST_SUITE_LOG); \
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+ col="$$grn"; \
+ else \
+ col="$$red"; \
+ test x"$$VERBOSE" = x || cat $(TEST_SUITE_LOG); \
+ fi; \
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+ fi; \
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+ fi; \
+ $$success || exit 1
+
+check-TESTS: $(check_PROGRAMS)
+ @list='$(RECHECK_LOGS)'; test -z "$$list" || rm -f $$list
+ @list='$(RECHECK_LOGS:.log=.trs)'; test -z "$$list" || rm -f $$list
+ @test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+ @set +e; $(am__set_TESTS_bases); \
+ log_list=`for i in $$bases; do echo $$i.log; done`; \
+ trs_list=`for i in $$bases; do echo $$i.trs; done`; \
+ log_list=`echo $$log_list`; trs_list=`echo $$trs_list`; \
+ $(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) TEST_LOGS="$$log_list"; \
+ exit $$?;
+recheck: all $(check_PROGRAMS)
+ @test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+ @set +e; $(am__set_TESTS_bases); \
+ bases=`for i in $$bases; do echo $$i; done \
+ | $(am__list_recheck_tests)` || exit 1; \
+ log_list=`for i in $$bases; do echo $$i.log; done`; \
+ log_list=`echo $$log_list`; \
+ $(MAKE) $(AM_MAKEFLAGS) $(TEST_SUITE_LOG) \
+ am__force_recheck=am--force-recheck \
+ TEST_LOGS="$$log_list"; \
+ exit $$?
+test-quotes.log: test-quotes$(EXEEXT)
+ @p='test-quotes$(EXEEXT)'; \
+ b='test-quotes'; \
+ $(am__check_pre) $(LOG_DRIVER) --test-name "$$f" \
+ --log-file $$b.log --trs-file $$b.trs \
+ $(am__common_driver_flags) $(AM_LOG_DRIVER_FLAGS) $(LOG_DRIVER_FLAGS) -- $(LOG_COMPILE) \
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+.test.log:
+ @p='$<'; \
+ $(am__set_b); \
+ $(am__check_pre) $(TEST_LOG_DRIVER) --test-name "$$f" \
+ --log-file $$b.log --trs-file $$b.trs \
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+ "$$tst" $(AM_TESTS_FD_REDIRECT)
+@am__EXEEXT_TRUE@.test$(EXEEXT).log:
+@am__EXEEXT_TRUE@ @p='$<'; \
+@am__EXEEXT_TRUE@ $(am__set_b); \
+@am__EXEEXT_TRUE@ $(am__check_pre) $(TEST_LOG_DRIVER) --test-name "$$f" \
+@am__EXEEXT_TRUE@ --log-file $$b.log --trs-file $$b.trs \
+@am__EXEEXT_TRUE@ $(am__common_driver_flags) $(AM_TEST_LOG_DRIVER_FLAGS) $(TEST_LOG_DRIVER_FLAGS) -- $(TEST_LOG_COMPILE) \
+@am__EXEEXT_TRUE@ "$$tst" $(AM_TESTS_FD_REDIRECT)
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+distdir: $(BUILT_SOURCES)
+ $(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+ @srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
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+ list='$(DISTFILES)'; \
+ dist_files=`for file in $$list; do echo $$file; done | \
+ sed -e "s|^$$srcdirstrip/||;t" \
+ -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+ case $$dist_files in \
+ */*) $(MKDIR_P) `echo "$$dist_files" | \
+ sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+ sort -u` ;; \
+ esac; \
+ for file in $$dist_files; do \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ if test -d $$d/$$file; then \
+ dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test -d "$(distdir)/$$file"; then \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+ else \
+ test -f "$(distdir)/$$file" \
+ || cp -p $$d/$$file "$(distdir)/$$file" \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+ $(MAKE) $(AM_MAKEFLAGS) $(check_PROGRAMS)
+ $(MAKE) $(AM_MAKEFLAGS) check-TESTS
+check: check-am
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+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ install; \
+ else \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
+ -test -z "$(TEST_LOGS)" || rm -f $(TEST_LOGS)
+ -test -z "$(TEST_LOGS:.log=.trs)" || rm -f $(TEST_LOGS:.log=.trs)
+ -test -z "$(TEST_SUITE_LOG)" || rm -f $(TEST_SUITE_LOG)
+
+clean-generic:
+ -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-checkPROGRAMS clean-generic clean-libtool \
+ clean-noinstLTLIBRARIES mostlyclean-am
+
+distclean: distclean-am
+ -rm -f ./$(DEPDIR)/libutils_la-utils.Plo
+ -rm -f ./$(DEPDIR)/test_quotes-test-quotes.Po
+ -rm -f ./$(DEPDIR)/test_quotes-utils.Po
+ -rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
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+ -rm -f ./$(DEPDIR)/libutils_la-utils.Plo
+ -rm -f ./$(DEPDIR)/test_quotes-test-quotes.Po
+ -rm -f ./$(DEPDIR)/test_quotes-utils.Po
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
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+ mostlyclean-libtool
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+
+.MAKE: check-am install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-TESTS \
+ check-am clean clean-checkPROGRAMS clean-generic clean-libtool \
+ clean-noinstLTLIBRARIES cscopelist-am ctags ctags-am distclean \
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+ distclean-tags distdir dvi dvi-am html html-am info info-am \
+ install install-am install-data install-data-am install-dvi \
+ install-dvi-am install-exec install-exec-am install-html \
+ install-html-am install-info install-info-am install-man \
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+ maintainer-clean maintainer-clean-generic mostlyclean \
+ mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+ pdf pdf-am ps ps-am recheck tags tags-am uninstall \
+ uninstall-am
+
+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* Unit tests of utils quoting code. */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <assert.h>
+#include <stdbool.h>
+
+#include "utils.h"
+
+static bool
+test (const char *orig, const char *fnname, void (*fn) (const char *, FILE *),
+ const char *exp)
+{
+ char *str = NULL;
+ size_t str_len = 0;
+ FILE *fp;
+
+ fp = open_memstream (&str, &str_len);
+ assert (fp);
+ fn (orig, fp);
+ if (fclose (fp) == EOF)
+ assert (false);
+ if (str_len == 0 && !str)
+ str = strdup ("");
+ assert (str);
+
+ if (strcmp (str, exp)) {
+ fprintf (stderr, "%s failed, got '%s' expected '%s'\n",
+ fnname, str, exp);
+ free (str);
+ return true;
+ }
+ free (str);
+ return false;
+}
+
+int
+main (void)
+{
+ struct {
+ const char *orig;
+ const char *shell;
+ const char *uri;
+ } tests[] = {
+ { "a-b_c.0", "a-b_c.0", "a-b_c.0" },
+ { "/Safe/Path", "/Safe/Path", "/Safe/Path" },
+ { "a~b", "\"a~b\"", "a~b" },
+ { "", "\"\"", "" },
+ { "a=b", "a=b", "a%3Db" }, /* XXX shell wrong if used as argv[0] */
+ { "a;b", "\"a;b\"", "a%3Bb" },
+ { "a b", "\"a b\"", "a%20b" },
+ { "a%b", "\"a%b\"", "a%25b" },
+ { "a'b\"c$d`e\\f", "\"a'b\\\"c\\$d\\`e\\\\f\"", "a%27b%22c%24d%60e%5Cf" },
+ };
+ size_t i;
+ bool fail = false;
+
+ for (i = 0; i < sizeof tests / sizeof tests[0]; i++) {
+ fail |= test (tests[i].orig, "shell_quote", shell_quote, tests[i].shell);
+ fail |= test (tests[i].orig, "uri_quote", uri_quote, tests[i].uri);
+ }
+ return fail ? EXIT_FAILURE : EXIT_SUCCESS;
+}
+
+/* Unrelated utils code uses nbdkit_error, normally provided by the main
+ * server program. So we have to provide it here.
+ */
+void
+nbdkit_error (const char *fs, ...)
+{
+ /* XXX split utils.c to avoid needing this linker stub? */
+ assert (false);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <nbdkit-plugin.h>
+
+/* Print str to fp, shell quoting if necessary. This comes from
+ * libguestfs, but was written by me so I'm relicensing it to a BSD
+ * license for nbdkit.
+ */
+void
+shell_quote (const char *str, FILE *fp)
+{
+ /* Note possible bug in this list (XXX):
+ * https://www.redhat.com/archives/libguestfs/2019-February/msg00036.html
+ */
+ const char *safe_chars =
+ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_=,:/";
+ size_t i, len;
+
+ /* If the string consists only of safe characters, output it as-is. */
+ len = strlen (str);
+ if (len > 0 && len == strspn (str, safe_chars)) {
+ fputs (str, fp);
+ return;
+ }
+
+ /* Double-quote the string. */
+ fputc ('"', fp);
+ for (i = 0; i < len; ++i) {
+ switch (str[i]) {
+ case '$': case '`': case '\\': case '"':
+ fputc ('\\', fp);
+ /*FALLTHROUGH*/
+ default:
+ fputc (str[i], fp);
+ }
+ }
+ fputc ('"', fp);
+}
+
+/* Print str to fp, URI quoting if necessary.
+ * The resulting string is safe for use in a URI path or query component,
+ * and can be passed through the shell without further quoting.
+ */
+void
+uri_quote (const char *str, FILE *fp)
+{
+ /* safe_chars contains the RFC 3986 unreserved characters plus '/'. */
+ const char *safe_chars =
+ "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789.-_~/";
+ size_t i, len;
+
+ /* If the string consists only of safe characters, output it as-is. */
+ len = strlen (str);
+ if (len == strspn (str, safe_chars)) {
+ fputs (str, fp);
+ return;
+ }
+
+ for (i = 0; i < len; ++i) {
+ if (strchr (safe_chars, str[i]))
+ fputc (str[i], fp);
+ else
+ fprintf (fp, "%%%02X", str[i] & 0xff);
+ }
+}
+
+/* Convert exit status to nbd_error. If the exit status was nonzero
+ * or another failure then -1 is returned.
+ */
+int
+exit_status_to_nbd_error (int status, const char *cmd)
+{
+ if (WIFEXITED (status) && WEXITSTATUS (status) != 0) {
+ nbdkit_error ("%s: command failed with exit code %d",
+ cmd, WEXITSTATUS (status));
+ return -1;
+ }
+ else if (WIFSIGNALED (status)) {
+ nbdkit_error ("%s: command was killed by signal %d",
+ cmd, WTERMSIG (status));
+ return -1;
+ }
+ else if (WIFSTOPPED (status)) {
+ nbdkit_error ("%s: command was stopped by signal %d",
+ cmd, WSTOPSIG (status));
+ return -1;
+ }
+
+ return 0;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_UTILS_H
+#define NBDKIT_UTILS_H
+
+extern void shell_quote (const char *str, FILE *fp);
+extern void uri_quote (const char *str, FILE *fp);
+extern int exit_status_to_nbd_error (int status, const char *cmd);
+
+#endif /* NBDKIT_UTILS_H */
--- /dev/null
+#! /bin/sh
+# Wrapper for compilers which do not understand '-c -o'.
+
+scriptversion=2018-03-07.03; # UTC
+
+# Copyright (C) 1999-2018 Free Software Foundation, Inc.
+# Written by Tom Tromey <tromey@cygnus.com>.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+nl='
+'
+
+# We need space, tab and new line, in precisely that order. Quoting is
+# there to prevent tools from complaining about whitespace usage.
+IFS=" "" $nl"
+
+file_conv=
+
+# func_file_conv build_file lazy
+# Convert a $build file to $host form and store it in $file
+# Currently only supports Windows hosts. If the determined conversion
+# type is listed in (the comma separated) LAZY, no conversion will
+# take place.
+func_file_conv ()
+{
+ file=$1
+ case $file in
+ / | /[!/]*) # absolute file, and not a UNC file
+ if test -z "$file_conv"; then
+ # lazily determine how to convert abs files
+ case `uname -s` in
+ MINGW*)
+ file_conv=mingw
+ ;;
+ CYGWIN*)
+ file_conv=cygwin
+ ;;
+ *)
+ file_conv=wine
+ ;;
+ esac
+ fi
+ case $file_conv/,$2, in
+ *,$file_conv,*)
+ ;;
+ mingw/*)
+ file=`cmd //C echo "$file " | sed -e 's/"\(.*\) " *$/\1/'`
+ ;;
+ cygwin/*)
+ file=`cygpath -m "$file" || echo "$file"`
+ ;;
+ wine/*)
+ file=`winepath -w "$file" || echo "$file"`
+ ;;
+ esac
+ ;;
+ esac
+}
+
+# func_cl_dashL linkdir
+# Make cl look for libraries in LINKDIR
+func_cl_dashL ()
+{
+ func_file_conv "$1"
+ if test -z "$lib_path"; then
+ lib_path=$file
+ else
+ lib_path="$lib_path;$file"
+ fi
+ linker_opts="$linker_opts -LIBPATH:$file"
+}
+
+# func_cl_dashl library
+# Do a library search-path lookup for cl
+func_cl_dashl ()
+{
+ lib=$1
+ found=no
+ save_IFS=$IFS
+ IFS=';'
+ for dir in $lib_path $LIB
+ do
+ IFS=$save_IFS
+ if $shared && test -f "$dir/$lib.dll.lib"; then
+ found=yes
+ lib=$dir/$lib.dll.lib
+ break
+ fi
+ if test -f "$dir/$lib.lib"; then
+ found=yes
+ lib=$dir/$lib.lib
+ break
+ fi
+ if test -f "$dir/lib$lib.a"; then
+ found=yes
+ lib=$dir/lib$lib.a
+ break
+ fi
+ done
+ IFS=$save_IFS
+
+ if test "$found" != yes; then
+ lib=$lib.lib
+ fi
+}
+
+# func_cl_wrapper cl arg...
+# Adjust compile command to suit cl
+func_cl_wrapper ()
+{
+ # Assume a capable shell
+ lib_path=
+ shared=:
+ linker_opts=
+ for arg
+ do
+ if test -n "$eat"; then
+ eat=
+ else
+ case $1 in
+ -o)
+ # configure might choose to run compile as 'compile cc -o foo foo.c'.
+ eat=1
+ case $2 in
+ *.o | *.[oO][bB][jJ])
+ func_file_conv "$2"
+ set x "$@" -Fo"$file"
+ shift
+ ;;
+ *)
+ func_file_conv "$2"
+ set x "$@" -Fe"$file"
+ shift
+ ;;
+ esac
+ ;;
+ -I)
+ eat=1
+ func_file_conv "$2" mingw
+ set x "$@" -I"$file"
+ shift
+ ;;
+ -I*)
+ func_file_conv "${1#-I}" mingw
+ set x "$@" -I"$file"
+ shift
+ ;;
+ -l)
+ eat=1
+ func_cl_dashl "$2"
+ set x "$@" "$lib"
+ shift
+ ;;
+ -l*)
+ func_cl_dashl "${1#-l}"
+ set x "$@" "$lib"
+ shift
+ ;;
+ -L)
+ eat=1
+ func_cl_dashL "$2"
+ ;;
+ -L*)
+ func_cl_dashL "${1#-L}"
+ ;;
+ -static)
+ shared=false
+ ;;
+ -Wl,*)
+ arg=${1#-Wl,}
+ save_ifs="$IFS"; IFS=','
+ for flag in $arg; do
+ IFS="$save_ifs"
+ linker_opts="$linker_opts $flag"
+ done
+ IFS="$save_ifs"
+ ;;
+ -Xlinker)
+ eat=1
+ linker_opts="$linker_opts $2"
+ ;;
+ -*)
+ set x "$@" "$1"
+ shift
+ ;;
+ *.cc | *.CC | *.cxx | *.CXX | *.[cC]++)
+ func_file_conv "$1"
+ set x "$@" -Tp"$file"
+ shift
+ ;;
+ *.c | *.cpp | *.CPP | *.lib | *.LIB | *.Lib | *.OBJ | *.obj | *.[oO])
+ func_file_conv "$1" mingw
+ set x "$@" "$file"
+ shift
+ ;;
+ *)
+ set x "$@" "$1"
+ shift
+ ;;
+ esac
+ fi
+ shift
+ done
+ if test -n "$linker_opts"; then
+ linker_opts="-link$linker_opts"
+ fi
+ exec "$@" $linker_opts
+ exit 1
+}
+
+eat=
+
+case $1 in
+ '')
+ echo "$0: No command. Try '$0 --help' for more information." 1>&2
+ exit 1;
+ ;;
+ -h | --h*)
+ cat <<\EOF
+Usage: compile [--help] [--version] PROGRAM [ARGS]
+
+Wrapper for compilers which do not understand '-c -o'.
+Remove '-o dest.o' from ARGS, run PROGRAM with the remaining
+arguments, and rename the output as expected.
+
+If you are trying to build a whole package this is not the
+right script to run: please start by reading the file 'INSTALL'.
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+ exit $?
+ ;;
+ -v | --v*)
+ echo "compile $scriptversion"
+ exit $?
+ ;;
+ cl | *[/\\]cl | cl.exe | *[/\\]cl.exe | \
+ icl | *[/\\]icl | icl.exe | *[/\\]icl.exe )
+ func_cl_wrapper "$@" # Doesn't return...
+ ;;
+esac
+
+ofile=
+cfile=
+
+for arg
+do
+ if test -n "$eat"; then
+ eat=
+ else
+ case $1 in
+ -o)
+ # configure might choose to run compile as 'compile cc -o foo foo.c'.
+ # So we strip '-o arg' only if arg is an object.
+ eat=1
+ case $2 in
+ *.o | *.obj)
+ ofile=$2
+ ;;
+ *)
+ set x "$@" -o "$2"
+ shift
+ ;;
+ esac
+ ;;
+ *.c)
+ cfile=$1
+ set x "$@" "$1"
+ shift
+ ;;
+ *)
+ set x "$@" "$1"
+ shift
+ ;;
+ esac
+ fi
+ shift
+done
+
+if test -z "$ofile" || test -z "$cfile"; then
+ # If no '-o' option was seen then we might have been invoked from a
+ # pattern rule where we don't need one. That is ok -- this is a
+ # normal compilation that the losing compiler can handle. If no
+ # '.c' file was seen then we are probably linking. That is also
+ # ok.
+ exec "$@"
+fi
+
+# Name of file we expect compiler to create.
+cofile=`echo "$cfile" | sed 's|^.*[\\/]||; s|^[a-zA-Z]:||; s/\.c$/.o/'`
+
+# Create the lock directory.
+# Note: use '[/\\:.-]' here to ensure that we don't use the same name
+# that we are using for the .o file. Also, base the name on the expected
+# object file name, since that is what matters with a parallel build.
+lockdir=`echo "$cofile" | sed -e 's|[/\\:.-]|_|g'`.d
+while true; do
+ if mkdir "$lockdir" >/dev/null 2>&1; then
+ break
+ fi
+ sleep 1
+done
+# FIXME: race condition here if user kills between mkdir and trap.
+trap "rmdir '$lockdir'; exit 1" 1 2 15
+
+# Run the compile.
+"$@"
+ret=$?
+
+if test -f "$cofile"; then
+ test "$cofile" = "$ofile" || mv "$cofile" "$ofile"
+elif test -f "${cofile}bj"; then
+ test "${cofile}bj" = "$ofile" || mv "${cofile}bj" "$ofile"
+fi
+
+rmdir "$lockdir"
+exit $ret
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
--- /dev/null
+#! /bin/sh
+# Attempt to guess a canonical system name.
+# Copyright 1992-2018 Free Software Foundation, Inc.
+
+timestamp='2018-03-08'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <https://www.gnu.org/licenses/>.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that
+# program. This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
+#
+# Originally written by Per Bothner; maintained since 2000 by Ben Elliston.
+#
+# You can get the latest version of this script from:
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+#
+# Please send patches to <config-patches@gnu.org>.
+
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION]
+
+Output the configuration name of the system \`$me' is run on.
+
+Options:
+ -h, --help print this help, then exit
+ -t, --time-stamp print date of last modification, then exit
+ -v, --version print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.guess ($timestamp)
+
+Originally written by Per Bothner.
+Copyright 1992-2018 Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions. There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+ case $1 in
+ --time-stamp | --time* | -t )
+ echo "$timestamp" ; exit ;;
+ --version | -v )
+ echo "$version" ; exit ;;
+ --help | --h* | -h )
+ echo "$usage"; exit ;;
+ -- ) # Stop option processing
+ shift; break ;;
+ - ) # Use stdin as input.
+ break ;;
+ -* )
+ echo "$me: invalid option $1$help" >&2
+ exit 1 ;;
+ * )
+ break ;;
+ esac
+done
+
+if test $# != 0; then
+ echo "$me: too many arguments$help" >&2
+ exit 1
+fi
+
+trap 'exit 1' 1 2 15
+
+# CC_FOR_BUILD -- compiler used by this script. Note that the use of a
+# compiler to aid in system detection is discouraged as it requires
+# temporary files to be created and, as you can see below, it is a
+# headache to deal with in a portable fashion.
+
+# Historically, `CC_FOR_BUILD' used to be named `HOST_CC'. We still
+# use `HOST_CC' if defined, but it is deprecated.
+
+# Portable tmp directory creation inspired by the Autoconf team.
+
+set_cc_for_build='
+trap "exitcode=\$?; (rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null) && exit \$exitcode" 0 ;
+trap "rm -f \$tmpfiles 2>/dev/null; rmdir \$tmp 2>/dev/null; exit 1" 1 2 13 15 ;
+: ${TMPDIR=/tmp} ;
+ { tmp=`(umask 077 && mktemp -d "$TMPDIR/cgXXXXXX") 2>/dev/null` && test -n "$tmp" && test -d "$tmp" ; } ||
+ { test -n "$RANDOM" && tmp=$TMPDIR/cg$$-$RANDOM && (umask 077 && mkdir $tmp) ; } ||
+ { tmp=$TMPDIR/cg-$$ && (umask 077 && mkdir $tmp) && echo "Warning: creating insecure temp directory" >&2 ; } ||
+ { echo "$me: cannot create a temporary directory in $TMPDIR" >&2 ; exit 1 ; } ;
+dummy=$tmp/dummy ;
+tmpfiles="$dummy.c $dummy.o $dummy.rel $dummy" ;
+case $CC_FOR_BUILD,$HOST_CC,$CC in
+ ,,) echo "int x;" > "$dummy.c" ;
+ for c in cc gcc c89 c99 ; do
+ if ($c -c -o "$dummy.o" "$dummy.c") >/dev/null 2>&1 ; then
+ CC_FOR_BUILD="$c"; break ;
+ fi ;
+ done ;
+ if test x"$CC_FOR_BUILD" = x ; then
+ CC_FOR_BUILD=no_compiler_found ;
+ fi
+ ;;
+ ,,*) CC_FOR_BUILD=$CC ;;
+ ,*,*) CC_FOR_BUILD=$HOST_CC ;;
+esac ; set_cc_for_build= ;'
+
+# This is needed to find uname on a Pyramid OSx when run in the BSD universe.
+# (ghazi@noc.rutgers.edu 1994-08-24)
+if (test -f /.attbin/uname) >/dev/null 2>&1 ; then
+ PATH=$PATH:/.attbin ; export PATH
+fi
+
+UNAME_MACHINE=`(uname -m) 2>/dev/null` || UNAME_MACHINE=unknown
+UNAME_RELEASE=`(uname -r) 2>/dev/null` || UNAME_RELEASE=unknown
+UNAME_SYSTEM=`(uname -s) 2>/dev/null` || UNAME_SYSTEM=unknown
+UNAME_VERSION=`(uname -v) 2>/dev/null` || UNAME_VERSION=unknown
+
+case "$UNAME_SYSTEM" in
+Linux|GNU|GNU/*)
+ # If the system lacks a compiler, then just pick glibc.
+ # We could probably try harder.
+ LIBC=gnu
+
+ eval "$set_cc_for_build"
+ cat <<-EOF > "$dummy.c"
+ #include <features.h>
+ #if defined(__UCLIBC__)
+ LIBC=uclibc
+ #elif defined(__dietlibc__)
+ LIBC=dietlibc
+ #else
+ LIBC=gnu
+ #endif
+ EOF
+ eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^LIBC' | sed 's, ,,g'`"
+
+ # If ldd exists, use it to detect musl libc.
+ if command -v ldd >/dev/null && \
+ ldd --version 2>&1 | grep -q ^musl
+ then
+ LIBC=musl
+ fi
+ ;;
+esac
+
+# Note: order is significant - the case branches are not exclusive.
+
+case "$UNAME_MACHINE:$UNAME_SYSTEM:$UNAME_RELEASE:$UNAME_VERSION" in
+ *:NetBSD:*:*)
+ # NetBSD (nbsd) targets should (where applicable) match one or
+ # more of the tuples: *-*-netbsdelf*, *-*-netbsdaout*,
+ # *-*-netbsdecoff* and *-*-netbsd*. For targets that recently
+ # switched to ELF, *-*-netbsd* would select the old
+ # object file format. This provides both forward
+ # compatibility and a consistent mechanism for selecting the
+ # object file format.
+ #
+ # Note: NetBSD doesn't particularly care about the vendor
+ # portion of the name. We always set it to "unknown".
+ sysctl="sysctl -n hw.machine_arch"
+ UNAME_MACHINE_ARCH=`(uname -p 2>/dev/null || \
+ "/sbin/$sysctl" 2>/dev/null || \
+ "/usr/sbin/$sysctl" 2>/dev/null || \
+ echo unknown)`
+ case "$UNAME_MACHINE_ARCH" in
+ armeb) machine=armeb-unknown ;;
+ arm*) machine=arm-unknown ;;
+ sh3el) machine=shl-unknown ;;
+ sh3eb) machine=sh-unknown ;;
+ sh5el) machine=sh5le-unknown ;;
+ earmv*)
+ arch=`echo "$UNAME_MACHINE_ARCH" | sed -e 's,^e\(armv[0-9]\).*$,\1,'`
+ endian=`echo "$UNAME_MACHINE_ARCH" | sed -ne 's,^.*\(eb\)$,\1,p'`
+ machine="${arch}${endian}"-unknown
+ ;;
+ *) machine="$UNAME_MACHINE_ARCH"-unknown ;;
+ esac
+ # The Operating System including object format, if it has switched
+ # to ELF recently (or will in the future) and ABI.
+ case "$UNAME_MACHINE_ARCH" in
+ earm*)
+ os=netbsdelf
+ ;;
+ arm*|i386|m68k|ns32k|sh3*|sparc|vax)
+ eval "$set_cc_for_build"
+ if echo __ELF__ | $CC_FOR_BUILD -E - 2>/dev/null \
+ | grep -q __ELF__
+ then
+ # Once all utilities can be ECOFF (netbsdecoff) or a.out (netbsdaout).
+ # Return netbsd for either. FIX?
+ os=netbsd
+ else
+ os=netbsdelf
+ fi
+ ;;
+ *)
+ os=netbsd
+ ;;
+ esac
+ # Determine ABI tags.
+ case "$UNAME_MACHINE_ARCH" in
+ earm*)
+ expr='s/^earmv[0-9]/-eabi/;s/eb$//'
+ abi=`echo "$UNAME_MACHINE_ARCH" | sed -e "$expr"`
+ ;;
+ esac
+ # The OS release
+ # Debian GNU/NetBSD machines have a different userland, and
+ # thus, need a distinct triplet. However, they do not need
+ # kernel version information, so it can be replaced with a
+ # suitable tag, in the style of linux-gnu.
+ case "$UNAME_VERSION" in
+ Debian*)
+ release='-gnu'
+ ;;
+ *)
+ release=`echo "$UNAME_RELEASE" | sed -e 's/[-_].*//' | cut -d. -f1,2`
+ ;;
+ esac
+ # Since CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM:
+ # contains redundant information, the shorter form:
+ # CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM is used.
+ echo "$machine-${os}${release}${abi}"
+ exit ;;
+ *:Bitrig:*:*)
+ UNAME_MACHINE_ARCH=`arch | sed 's/Bitrig.//'`
+ echo "$UNAME_MACHINE_ARCH"-unknown-bitrig"$UNAME_RELEASE"
+ exit ;;
+ *:OpenBSD:*:*)
+ UNAME_MACHINE_ARCH=`arch | sed 's/OpenBSD.//'`
+ echo "$UNAME_MACHINE_ARCH"-unknown-openbsd"$UNAME_RELEASE"
+ exit ;;
+ *:LibertyBSD:*:*)
+ UNAME_MACHINE_ARCH=`arch | sed 's/^.*BSD\.//'`
+ echo "$UNAME_MACHINE_ARCH"-unknown-libertybsd"$UNAME_RELEASE"
+ exit ;;
+ *:MidnightBSD:*:*)
+ echo "$UNAME_MACHINE"-unknown-midnightbsd"$UNAME_RELEASE"
+ exit ;;
+ *:ekkoBSD:*:*)
+ echo "$UNAME_MACHINE"-unknown-ekkobsd"$UNAME_RELEASE"
+ exit ;;
+ *:SolidBSD:*:*)
+ echo "$UNAME_MACHINE"-unknown-solidbsd"$UNAME_RELEASE"
+ exit ;;
+ macppc:MirBSD:*:*)
+ echo powerpc-unknown-mirbsd"$UNAME_RELEASE"
+ exit ;;
+ *:MirBSD:*:*)
+ echo "$UNAME_MACHINE"-unknown-mirbsd"$UNAME_RELEASE"
+ exit ;;
+ *:Sortix:*:*)
+ echo "$UNAME_MACHINE"-unknown-sortix
+ exit ;;
+ *:Redox:*:*)
+ echo "$UNAME_MACHINE"-unknown-redox
+ exit ;;
+ mips:OSF1:*.*)
+ echo mips-dec-osf1
+ exit ;;
+ alpha:OSF1:*:*)
+ case $UNAME_RELEASE in
+ *4.0)
+ UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $3}'`
+ ;;
+ *5.*)
+ UNAME_RELEASE=`/usr/sbin/sizer -v | awk '{print $4}'`
+ ;;
+ esac
+ # According to Compaq, /usr/sbin/psrinfo has been available on
+ # OSF/1 and Tru64 systems produced since 1995. I hope that
+ # covers most systems running today. This code pipes the CPU
+ # types through head -n 1, so we only detect the type of CPU 0.
+ ALPHA_CPU_TYPE=`/usr/sbin/psrinfo -v | sed -n -e 's/^ The alpha \(.*\) processor.*$/\1/p' | head -n 1`
+ case "$ALPHA_CPU_TYPE" in
+ "EV4 (21064)")
+ UNAME_MACHINE=alpha ;;
+ "EV4.5 (21064)")
+ UNAME_MACHINE=alpha ;;
+ "LCA4 (21066/21068)")
+ UNAME_MACHINE=alpha ;;
+ "EV5 (21164)")
+ UNAME_MACHINE=alphaev5 ;;
+ "EV5.6 (21164A)")
+ UNAME_MACHINE=alphaev56 ;;
+ "EV5.6 (21164PC)")
+ UNAME_MACHINE=alphapca56 ;;
+ "EV5.7 (21164PC)")
+ UNAME_MACHINE=alphapca57 ;;
+ "EV6 (21264)")
+ UNAME_MACHINE=alphaev6 ;;
+ "EV6.7 (21264A)")
+ UNAME_MACHINE=alphaev67 ;;
+ "EV6.8CB (21264C)")
+ UNAME_MACHINE=alphaev68 ;;
+ "EV6.8AL (21264B)")
+ UNAME_MACHINE=alphaev68 ;;
+ "EV6.8CX (21264D)")
+ UNAME_MACHINE=alphaev68 ;;
+ "EV6.9A (21264/EV69A)")
+ UNAME_MACHINE=alphaev69 ;;
+ "EV7 (21364)")
+ UNAME_MACHINE=alphaev7 ;;
+ "EV7.9 (21364A)")
+ UNAME_MACHINE=alphaev79 ;;
+ esac
+ # A Pn.n version is a patched version.
+ # A Vn.n version is a released version.
+ # A Tn.n version is a released field test version.
+ # A Xn.n version is an unreleased experimental baselevel.
+ # 1.2 uses "1.2" for uname -r.
+ echo "$UNAME_MACHINE"-dec-osf"`echo "$UNAME_RELEASE" | sed -e 's/^[PVTX]//' | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`"
+ # Reset EXIT trap before exiting to avoid spurious non-zero exit code.
+ exitcode=$?
+ trap '' 0
+ exit $exitcode ;;
+ Amiga*:UNIX_System_V:4.0:*)
+ echo m68k-unknown-sysv4
+ exit ;;
+ *:[Aa]miga[Oo][Ss]:*:*)
+ echo "$UNAME_MACHINE"-unknown-amigaos
+ exit ;;
+ *:[Mm]orph[Oo][Ss]:*:*)
+ echo "$UNAME_MACHINE"-unknown-morphos
+ exit ;;
+ *:OS/390:*:*)
+ echo i370-ibm-openedition
+ exit ;;
+ *:z/VM:*:*)
+ echo s390-ibm-zvmoe
+ exit ;;
+ *:OS400:*:*)
+ echo powerpc-ibm-os400
+ exit ;;
+ arm:RISC*:1.[012]*:*|arm:riscix:1.[012]*:*)
+ echo arm-acorn-riscix"$UNAME_RELEASE"
+ exit ;;
+ arm*:riscos:*:*|arm*:RISCOS:*:*)
+ echo arm-unknown-riscos
+ exit ;;
+ SR2?01:HI-UX/MPP:*:* | SR8000:HI-UX/MPP:*:*)
+ echo hppa1.1-hitachi-hiuxmpp
+ exit ;;
+ Pyramid*:OSx*:*:* | MIS*:OSx*:*:* | MIS*:SMP_DC-OSx*:*:*)
+ # akee@wpdis03.wpafb.af.mil (Earle F. Ake) contributed MIS and NILE.
+ if test "`(/bin/universe) 2>/dev/null`" = att ; then
+ echo pyramid-pyramid-sysv3
+ else
+ echo pyramid-pyramid-bsd
+ fi
+ exit ;;
+ NILE*:*:*:dcosx)
+ echo pyramid-pyramid-svr4
+ exit ;;
+ DRS?6000:unix:4.0:6*)
+ echo sparc-icl-nx6
+ exit ;;
+ DRS?6000:UNIX_SV:4.2*:7* | DRS?6000:isis:4.2*:7*)
+ case `/usr/bin/uname -p` in
+ sparc) echo sparc-icl-nx7; exit ;;
+ esac ;;
+ s390x:SunOS:*:*)
+ echo "$UNAME_MACHINE"-ibm-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`"
+ exit ;;
+ sun4H:SunOS:5.*:*)
+ echo sparc-hal-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
+ exit ;;
+ sun4*:SunOS:5.*:* | tadpole*:SunOS:5.*:*)
+ echo sparc-sun-solaris2"`echo "$UNAME_RELEASE" | sed -e 's/[^.]*//'`"
+ exit ;;
+ i86pc:AuroraUX:5.*:* | i86xen:AuroraUX:5.*:*)
+ echo i386-pc-auroraux"$UNAME_RELEASE"
+ exit ;;
+ i86pc:SunOS:5.*:* | i86xen:SunOS:5.*:*)
+ eval "$set_cc_for_build"
+ SUN_ARCH=i386
+ # If there is a compiler, see if it is configured for 64-bit objects.
+ # Note that the Sun cc does not turn __LP64__ into 1 like gcc does.
+ # This test works for both compilers.
+ if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
+ if (echo '#ifdef __amd64'; echo IS_64BIT_ARCH; echo '#endif') | \
+ (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+ grep IS_64BIT_ARCH >/dev/null
+ then
+ SUN_ARCH=x86_64
+ fi
+ fi
+ echo "$SUN_ARCH"-pc-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
+ exit ;;
+ sun4*:SunOS:6*:*)
+ # According to config.sub, this is the proper way to canonicalize
+ # SunOS6. Hard to guess exactly what SunOS6 will be like, but
+ # it's likely to be more like Solaris than SunOS4.
+ echo sparc-sun-solaris3"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
+ exit ;;
+ sun4*:SunOS:*:*)
+ case "`/usr/bin/arch -k`" in
+ Series*|S4*)
+ UNAME_RELEASE=`uname -v`
+ ;;
+ esac
+ # Japanese Language versions have a version number like `4.1.3-JL'.
+ echo sparc-sun-sunos"`echo "$UNAME_RELEASE"|sed -e 's/-/_/'`"
+ exit ;;
+ sun3*:SunOS:*:*)
+ echo m68k-sun-sunos"$UNAME_RELEASE"
+ exit ;;
+ sun*:*:4.2BSD:*)
+ UNAME_RELEASE=`(sed 1q /etc/motd | awk '{print substr($5,1,3)}') 2>/dev/null`
+ test "x$UNAME_RELEASE" = x && UNAME_RELEASE=3
+ case "`/bin/arch`" in
+ sun3)
+ echo m68k-sun-sunos"$UNAME_RELEASE"
+ ;;
+ sun4)
+ echo sparc-sun-sunos"$UNAME_RELEASE"
+ ;;
+ esac
+ exit ;;
+ aushp:SunOS:*:*)
+ echo sparc-auspex-sunos"$UNAME_RELEASE"
+ exit ;;
+ # The situation for MiNT is a little confusing. The machine name
+ # can be virtually everything (everything which is not
+ # "atarist" or "atariste" at least should have a processor
+ # > m68000). The system name ranges from "MiNT" over "FreeMiNT"
+ # to the lowercase version "mint" (or "freemint"). Finally
+ # the system name "TOS" denotes a system which is actually not
+ # MiNT. But MiNT is downward compatible to TOS, so this should
+ # be no problem.
+ atarist[e]:*MiNT:*:* | atarist[e]:*mint:*:* | atarist[e]:*TOS:*:*)
+ echo m68k-atari-mint"$UNAME_RELEASE"
+ exit ;;
+ atari*:*MiNT:*:* | atari*:*mint:*:* | atarist[e]:*TOS:*:*)
+ echo m68k-atari-mint"$UNAME_RELEASE"
+ exit ;;
+ *falcon*:*MiNT:*:* | *falcon*:*mint:*:* | *falcon*:*TOS:*:*)
+ echo m68k-atari-mint"$UNAME_RELEASE"
+ exit ;;
+ milan*:*MiNT:*:* | milan*:*mint:*:* | *milan*:*TOS:*:*)
+ echo m68k-milan-mint"$UNAME_RELEASE"
+ exit ;;
+ hades*:*MiNT:*:* | hades*:*mint:*:* | *hades*:*TOS:*:*)
+ echo m68k-hades-mint"$UNAME_RELEASE"
+ exit ;;
+ *:*MiNT:*:* | *:*mint:*:* | *:*TOS:*:*)
+ echo m68k-unknown-mint"$UNAME_RELEASE"
+ exit ;;
+ m68k:machten:*:*)
+ echo m68k-apple-machten"$UNAME_RELEASE"
+ exit ;;
+ powerpc:machten:*:*)
+ echo powerpc-apple-machten"$UNAME_RELEASE"
+ exit ;;
+ RISC*:Mach:*:*)
+ echo mips-dec-mach_bsd4.3
+ exit ;;
+ RISC*:ULTRIX:*:*)
+ echo mips-dec-ultrix"$UNAME_RELEASE"
+ exit ;;
+ VAX*:ULTRIX*:*:*)
+ echo vax-dec-ultrix"$UNAME_RELEASE"
+ exit ;;
+ 2020:CLIX:*:* | 2430:CLIX:*:*)
+ echo clipper-intergraph-clix"$UNAME_RELEASE"
+ exit ;;
+ mips:*:*:UMIPS | mips:*:*:RISCos)
+ eval "$set_cc_for_build"
+ sed 's/^ //' << EOF > "$dummy.c"
+#ifdef __cplusplus
+#include <stdio.h> /* for printf() prototype */
+ int main (int argc, char *argv[]) {
+#else
+ int main (argc, argv) int argc; char *argv[]; {
+#endif
+ #if defined (host_mips) && defined (MIPSEB)
+ #if defined (SYSTYPE_SYSV)
+ printf ("mips-mips-riscos%ssysv\\n", argv[1]); exit (0);
+ #endif
+ #if defined (SYSTYPE_SVR4)
+ printf ("mips-mips-riscos%ssvr4\\n", argv[1]); exit (0);
+ #endif
+ #if defined (SYSTYPE_BSD43) || defined(SYSTYPE_BSD)
+ printf ("mips-mips-riscos%sbsd\\n", argv[1]); exit (0);
+ #endif
+ #endif
+ exit (-1);
+ }
+EOF
+ $CC_FOR_BUILD -o "$dummy" "$dummy.c" &&
+ dummyarg=`echo "$UNAME_RELEASE" | sed -n 's/\([0-9]*\).*/\1/p'` &&
+ SYSTEM_NAME=`"$dummy" "$dummyarg"` &&
+ { echo "$SYSTEM_NAME"; exit; }
+ echo mips-mips-riscos"$UNAME_RELEASE"
+ exit ;;
+ Motorola:PowerMAX_OS:*:*)
+ echo powerpc-motorola-powermax
+ exit ;;
+ Motorola:*:4.3:PL8-*)
+ echo powerpc-harris-powermax
+ exit ;;
+ Night_Hawk:*:*:PowerMAX_OS | Synergy:PowerMAX_OS:*:*)
+ echo powerpc-harris-powermax
+ exit ;;
+ Night_Hawk:Power_UNIX:*:*)
+ echo powerpc-harris-powerunix
+ exit ;;
+ m88k:CX/UX:7*:*)
+ echo m88k-harris-cxux7
+ exit ;;
+ m88k:*:4*:R4*)
+ echo m88k-motorola-sysv4
+ exit ;;
+ m88k:*:3*:R3*)
+ echo m88k-motorola-sysv3
+ exit ;;
+ AViiON:dgux:*:*)
+ # DG/UX returns AViiON for all architectures
+ UNAME_PROCESSOR=`/usr/bin/uname -p`
+ if [ "$UNAME_PROCESSOR" = mc88100 ] || [ "$UNAME_PROCESSOR" = mc88110 ]
+ then
+ if [ "$TARGET_BINARY_INTERFACE"x = m88kdguxelfx ] || \
+ [ "$TARGET_BINARY_INTERFACE"x = x ]
+ then
+ echo m88k-dg-dgux"$UNAME_RELEASE"
+ else
+ echo m88k-dg-dguxbcs"$UNAME_RELEASE"
+ fi
+ else
+ echo i586-dg-dgux"$UNAME_RELEASE"
+ fi
+ exit ;;
+ M88*:DolphinOS:*:*) # DolphinOS (SVR3)
+ echo m88k-dolphin-sysv3
+ exit ;;
+ M88*:*:R3*:*)
+ # Delta 88k system running SVR3
+ echo m88k-motorola-sysv3
+ exit ;;
+ XD88*:*:*:*) # Tektronix XD88 system running UTekV (SVR3)
+ echo m88k-tektronix-sysv3
+ exit ;;
+ Tek43[0-9][0-9]:UTek:*:*) # Tektronix 4300 system running UTek (BSD)
+ echo m68k-tektronix-bsd
+ exit ;;
+ *:IRIX*:*:*)
+ echo mips-sgi-irix"`echo "$UNAME_RELEASE"|sed -e 's/-/_/g'`"
+ exit ;;
+ ????????:AIX?:[12].1:2) # AIX 2.2.1 or AIX 2.1.1 is RT/PC AIX.
+ echo romp-ibm-aix # uname -m gives an 8 hex-code CPU id
+ exit ;; # Note that: echo "'`uname -s`'" gives 'AIX '
+ i*86:AIX:*:*)
+ echo i386-ibm-aix
+ exit ;;
+ ia64:AIX:*:*)
+ if [ -x /usr/bin/oslevel ] ; then
+ IBM_REV=`/usr/bin/oslevel`
+ else
+ IBM_REV="$UNAME_VERSION.$UNAME_RELEASE"
+ fi
+ echo "$UNAME_MACHINE"-ibm-aix"$IBM_REV"
+ exit ;;
+ *:AIX:2:3)
+ if grep bos325 /usr/include/stdio.h >/dev/null 2>&1; then
+ eval "$set_cc_for_build"
+ sed 's/^ //' << EOF > "$dummy.c"
+ #include <sys/systemcfg.h>
+
+ main()
+ {
+ if (!__power_pc())
+ exit(1);
+ puts("powerpc-ibm-aix3.2.5");
+ exit(0);
+ }
+EOF
+ if $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"`
+ then
+ echo "$SYSTEM_NAME"
+ else
+ echo rs6000-ibm-aix3.2.5
+ fi
+ elif grep bos324 /usr/include/stdio.h >/dev/null 2>&1; then
+ echo rs6000-ibm-aix3.2.4
+ else
+ echo rs6000-ibm-aix3.2
+ fi
+ exit ;;
+ *:AIX:*:[4567])
+ IBM_CPU_ID=`/usr/sbin/lsdev -C -c processor -S available | sed 1q | awk '{ print $1 }'`
+ if /usr/sbin/lsattr -El "$IBM_CPU_ID" | grep ' POWER' >/dev/null 2>&1; then
+ IBM_ARCH=rs6000
+ else
+ IBM_ARCH=powerpc
+ fi
+ if [ -x /usr/bin/lslpp ] ; then
+ IBM_REV=`/usr/bin/lslpp -Lqc bos.rte.libc |
+ awk -F: '{ print $3 }' | sed s/[0-9]*$/0/`
+ else
+ IBM_REV="$UNAME_VERSION.$UNAME_RELEASE"
+ fi
+ echo "$IBM_ARCH"-ibm-aix"$IBM_REV"
+ exit ;;
+ *:AIX:*:*)
+ echo rs6000-ibm-aix
+ exit ;;
+ ibmrt:4.4BSD:*|romp-ibm:4.4BSD:*)
+ echo romp-ibm-bsd4.4
+ exit ;;
+ ibmrt:*BSD:*|romp-ibm:BSD:*) # covers RT/PC BSD and
+ echo romp-ibm-bsd"$UNAME_RELEASE" # 4.3 with uname added to
+ exit ;; # report: romp-ibm BSD 4.3
+ *:BOSX:*:*)
+ echo rs6000-bull-bosx
+ exit ;;
+ DPX/2?00:B.O.S.:*:*)
+ echo m68k-bull-sysv3
+ exit ;;
+ 9000/[34]??:4.3bsd:1.*:*)
+ echo m68k-hp-bsd
+ exit ;;
+ hp300:4.4BSD:*:* | 9000/[34]??:4.3bsd:2.*:*)
+ echo m68k-hp-bsd4.4
+ exit ;;
+ 9000/[34678]??:HP-UX:*:*)
+ HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'`
+ case "$UNAME_MACHINE" in
+ 9000/31?) HP_ARCH=m68000 ;;
+ 9000/[34]??) HP_ARCH=m68k ;;
+ 9000/[678][0-9][0-9])
+ if [ -x /usr/bin/getconf ]; then
+ sc_cpu_version=`/usr/bin/getconf SC_CPU_VERSION 2>/dev/null`
+ sc_kernel_bits=`/usr/bin/getconf SC_KERNEL_BITS 2>/dev/null`
+ case "$sc_cpu_version" in
+ 523) HP_ARCH=hppa1.0 ;; # CPU_PA_RISC1_0
+ 528) HP_ARCH=hppa1.1 ;; # CPU_PA_RISC1_1
+ 532) # CPU_PA_RISC2_0
+ case "$sc_kernel_bits" in
+ 32) HP_ARCH=hppa2.0n ;;
+ 64) HP_ARCH=hppa2.0w ;;
+ '') HP_ARCH=hppa2.0 ;; # HP-UX 10.20
+ esac ;;
+ esac
+ fi
+ if [ "$HP_ARCH" = "" ]; then
+ eval "$set_cc_for_build"
+ sed 's/^ //' << EOF > "$dummy.c"
+
+ #define _HPUX_SOURCE
+ #include <stdlib.h>
+ #include <unistd.h>
+
+ int main ()
+ {
+ #if defined(_SC_KERNEL_BITS)
+ long bits = sysconf(_SC_KERNEL_BITS);
+ #endif
+ long cpu = sysconf (_SC_CPU_VERSION);
+
+ switch (cpu)
+ {
+ case CPU_PA_RISC1_0: puts ("hppa1.0"); break;
+ case CPU_PA_RISC1_1: puts ("hppa1.1"); break;
+ case CPU_PA_RISC2_0:
+ #if defined(_SC_KERNEL_BITS)
+ switch (bits)
+ {
+ case 64: puts ("hppa2.0w"); break;
+ case 32: puts ("hppa2.0n"); break;
+ default: puts ("hppa2.0"); break;
+ } break;
+ #else /* !defined(_SC_KERNEL_BITS) */
+ puts ("hppa2.0"); break;
+ #endif
+ default: puts ("hppa1.0"); break;
+ }
+ exit (0);
+ }
+EOF
+ (CCOPTS="" $CC_FOR_BUILD -o "$dummy" "$dummy.c" 2>/dev/null) && HP_ARCH=`"$dummy"`
+ test -z "$HP_ARCH" && HP_ARCH=hppa
+ fi ;;
+ esac
+ if [ "$HP_ARCH" = hppa2.0w ]
+ then
+ eval "$set_cc_for_build"
+
+ # hppa2.0w-hp-hpux* has a 64-bit kernel and a compiler generating
+ # 32-bit code. hppa64-hp-hpux* has the same kernel and a compiler
+ # generating 64-bit code. GNU and HP use different nomenclature:
+ #
+ # $ CC_FOR_BUILD=cc ./config.guess
+ # => hppa2.0w-hp-hpux11.23
+ # $ CC_FOR_BUILD="cc +DA2.0w" ./config.guess
+ # => hppa64-hp-hpux11.23
+
+ if echo __LP64__ | (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) |
+ grep -q __LP64__
+ then
+ HP_ARCH=hppa2.0w
+ else
+ HP_ARCH=hppa64
+ fi
+ fi
+ echo "$HP_ARCH"-hp-hpux"$HPUX_REV"
+ exit ;;
+ ia64:HP-UX:*:*)
+ HPUX_REV=`echo "$UNAME_RELEASE"|sed -e 's/[^.]*.[0B]*//'`
+ echo ia64-hp-hpux"$HPUX_REV"
+ exit ;;
+ 3050*:HI-UX:*:*)
+ eval "$set_cc_for_build"
+ sed 's/^ //' << EOF > "$dummy.c"
+ #include <unistd.h>
+ int
+ main ()
+ {
+ long cpu = sysconf (_SC_CPU_VERSION);
+ /* The order matters, because CPU_IS_HP_MC68K erroneously returns
+ true for CPU_PA_RISC1_0. CPU_IS_PA_RISC returns correct
+ results, however. */
+ if (CPU_IS_PA_RISC (cpu))
+ {
+ switch (cpu)
+ {
+ case CPU_PA_RISC1_0: puts ("hppa1.0-hitachi-hiuxwe2"); break;
+ case CPU_PA_RISC1_1: puts ("hppa1.1-hitachi-hiuxwe2"); break;
+ case CPU_PA_RISC2_0: puts ("hppa2.0-hitachi-hiuxwe2"); break;
+ default: puts ("hppa-hitachi-hiuxwe2"); break;
+ }
+ }
+ else if (CPU_IS_HP_MC68K (cpu))
+ puts ("m68k-hitachi-hiuxwe2");
+ else puts ("unknown-hitachi-hiuxwe2");
+ exit (0);
+ }
+EOF
+ $CC_FOR_BUILD -o "$dummy" "$dummy.c" && SYSTEM_NAME=`"$dummy"` &&
+ { echo "$SYSTEM_NAME"; exit; }
+ echo unknown-hitachi-hiuxwe2
+ exit ;;
+ 9000/7??:4.3bsd:*:* | 9000/8?[79]:4.3bsd:*:*)
+ echo hppa1.1-hp-bsd
+ exit ;;
+ 9000/8??:4.3bsd:*:*)
+ echo hppa1.0-hp-bsd
+ exit ;;
+ *9??*:MPE/iX:*:* | *3000*:MPE/iX:*:*)
+ echo hppa1.0-hp-mpeix
+ exit ;;
+ hp7??:OSF1:*:* | hp8?[79]:OSF1:*:*)
+ echo hppa1.1-hp-osf
+ exit ;;
+ hp8??:OSF1:*:*)
+ echo hppa1.0-hp-osf
+ exit ;;
+ i*86:OSF1:*:*)
+ if [ -x /usr/sbin/sysversion ] ; then
+ echo "$UNAME_MACHINE"-unknown-osf1mk
+ else
+ echo "$UNAME_MACHINE"-unknown-osf1
+ fi
+ exit ;;
+ parisc*:Lites*:*:*)
+ echo hppa1.1-hp-lites
+ exit ;;
+ C1*:ConvexOS:*:* | convex:ConvexOS:C1*:*)
+ echo c1-convex-bsd
+ exit ;;
+ C2*:ConvexOS:*:* | convex:ConvexOS:C2*:*)
+ if getsysinfo -f scalar_acc
+ then echo c32-convex-bsd
+ else echo c2-convex-bsd
+ fi
+ exit ;;
+ C34*:ConvexOS:*:* | convex:ConvexOS:C34*:*)
+ echo c34-convex-bsd
+ exit ;;
+ C38*:ConvexOS:*:* | convex:ConvexOS:C38*:*)
+ echo c38-convex-bsd
+ exit ;;
+ C4*:ConvexOS:*:* | convex:ConvexOS:C4*:*)
+ echo c4-convex-bsd
+ exit ;;
+ CRAY*Y-MP:*:*:*)
+ echo ymp-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+ exit ;;
+ CRAY*[A-Z]90:*:*:*)
+ echo "$UNAME_MACHINE"-cray-unicos"$UNAME_RELEASE" \
+ | sed -e 's/CRAY.*\([A-Z]90\)/\1/' \
+ -e y/ABCDEFGHIJKLMNOPQRSTUVWXYZ/abcdefghijklmnopqrstuvwxyz/ \
+ -e 's/\.[^.]*$/.X/'
+ exit ;;
+ CRAY*TS:*:*:*)
+ echo t90-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+ exit ;;
+ CRAY*T3E:*:*:*)
+ echo alphaev5-cray-unicosmk"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+ exit ;;
+ CRAY*SV1:*:*:*)
+ echo sv1-cray-unicos"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+ exit ;;
+ *:UNICOS/mp:*:*)
+ echo craynv-cray-unicosmp"$UNAME_RELEASE" | sed -e 's/\.[^.]*$/.X/'
+ exit ;;
+ F30[01]:UNIX_System_V:*:* | F700:UNIX_System_V:*:*)
+ FUJITSU_PROC=`uname -m | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz`
+ FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
+ FUJITSU_REL=`echo "$UNAME_RELEASE" | sed -e 's/ /_/'`
+ echo "${FUJITSU_PROC}-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+ exit ;;
+ 5000:UNIX_System_V:4.*:*)
+ FUJITSU_SYS=`uname -p | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/\///'`
+ FUJITSU_REL=`echo "$UNAME_RELEASE" | tr ABCDEFGHIJKLMNOPQRSTUVWXYZ abcdefghijklmnopqrstuvwxyz | sed -e 's/ /_/'`
+ echo "sparc-fujitsu-${FUJITSU_SYS}${FUJITSU_REL}"
+ exit ;;
+ i*86:BSD/386:*:* | i*86:BSD/OS:*:* | *:Ascend\ Embedded/OS:*:*)
+ echo "$UNAME_MACHINE"-pc-bsdi"$UNAME_RELEASE"
+ exit ;;
+ sparc*:BSD/OS:*:*)
+ echo sparc-unknown-bsdi"$UNAME_RELEASE"
+ exit ;;
+ *:BSD/OS:*:*)
+ echo "$UNAME_MACHINE"-unknown-bsdi"$UNAME_RELEASE"
+ exit ;;
+ *:FreeBSD:*:*)
+ UNAME_PROCESSOR=`/usr/bin/uname -p`
+ case "$UNAME_PROCESSOR" in
+ amd64)
+ UNAME_PROCESSOR=x86_64 ;;
+ i386)
+ UNAME_PROCESSOR=i586 ;;
+ esac
+ echo "$UNAME_PROCESSOR"-unknown-freebsd"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`"
+ exit ;;
+ i*:CYGWIN*:*)
+ echo "$UNAME_MACHINE"-pc-cygwin
+ exit ;;
+ *:MINGW64*:*)
+ echo "$UNAME_MACHINE"-pc-mingw64
+ exit ;;
+ *:MINGW*:*)
+ echo "$UNAME_MACHINE"-pc-mingw32
+ exit ;;
+ *:MSYS*:*)
+ echo "$UNAME_MACHINE"-pc-msys
+ exit ;;
+ i*:PW*:*)
+ echo "$UNAME_MACHINE"-pc-pw32
+ exit ;;
+ *:Interix*:*)
+ case "$UNAME_MACHINE" in
+ x86)
+ echo i586-pc-interix"$UNAME_RELEASE"
+ exit ;;
+ authenticamd | genuineintel | EM64T)
+ echo x86_64-unknown-interix"$UNAME_RELEASE"
+ exit ;;
+ IA64)
+ echo ia64-unknown-interix"$UNAME_RELEASE"
+ exit ;;
+ esac ;;
+ i*:UWIN*:*)
+ echo "$UNAME_MACHINE"-pc-uwin
+ exit ;;
+ amd64:CYGWIN*:*:* | x86_64:CYGWIN*:*:*)
+ echo x86_64-unknown-cygwin
+ exit ;;
+ prep*:SunOS:5.*:*)
+ echo powerpcle-unknown-solaris2"`echo "$UNAME_RELEASE"|sed -e 's/[^.]*//'`"
+ exit ;;
+ *:GNU:*:*)
+ # the GNU system
+ echo "`echo "$UNAME_MACHINE"|sed -e 's,[-/].*$,,'`-unknown-$LIBC`echo "$UNAME_RELEASE"|sed -e 's,/.*$,,'`"
+ exit ;;
+ *:GNU/*:*:*)
+ # other systems with GNU libc and userland
+ echo "$UNAME_MACHINE-unknown-`echo "$UNAME_SYSTEM" | sed 's,^[^/]*/,,' | tr "[:upper:]" "[:lower:]"``echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`-$LIBC"
+ exit ;;
+ i*86:Minix:*:*)
+ echo "$UNAME_MACHINE"-pc-minix
+ exit ;;
+ aarch64:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ aarch64_be:Linux:*:*)
+ UNAME_MACHINE=aarch64_be
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ alpha:Linux:*:*)
+ case `sed -n '/^cpu model/s/^.*: \(.*\)/\1/p' < /proc/cpuinfo` in
+ EV5) UNAME_MACHINE=alphaev5 ;;
+ EV56) UNAME_MACHINE=alphaev56 ;;
+ PCA56) UNAME_MACHINE=alphapca56 ;;
+ PCA57) UNAME_MACHINE=alphapca56 ;;
+ EV6) UNAME_MACHINE=alphaev6 ;;
+ EV67) UNAME_MACHINE=alphaev67 ;;
+ EV68*) UNAME_MACHINE=alphaev68 ;;
+ esac
+ objdump --private-headers /bin/sh | grep -q ld.so.1
+ if test "$?" = 0 ; then LIBC=gnulibc1 ; fi
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ arc:Linux:*:* | arceb:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ arm*:Linux:*:*)
+ eval "$set_cc_for_build"
+ if echo __ARM_EABI__ | $CC_FOR_BUILD -E - 2>/dev/null \
+ | grep -q __ARM_EABI__
+ then
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ else
+ if echo __ARM_PCS_VFP | $CC_FOR_BUILD -E - 2>/dev/null \
+ | grep -q __ARM_PCS_VFP
+ then
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabi
+ else
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"eabihf
+ fi
+ fi
+ exit ;;
+ avr32*:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ cris:Linux:*:*)
+ echo "$UNAME_MACHINE"-axis-linux-"$LIBC"
+ exit ;;
+ crisv32:Linux:*:*)
+ echo "$UNAME_MACHINE"-axis-linux-"$LIBC"
+ exit ;;
+ e2k:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ frv:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ hexagon:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ i*86:Linux:*:*)
+ echo "$UNAME_MACHINE"-pc-linux-"$LIBC"
+ exit ;;
+ ia64:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ k1om:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ m32r*:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ m68*:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ mips:Linux:*:* | mips64:Linux:*:*)
+ eval "$set_cc_for_build"
+ sed 's/^ //' << EOF > "$dummy.c"
+ #undef CPU
+ #undef ${UNAME_MACHINE}
+ #undef ${UNAME_MACHINE}el
+ #if defined(__MIPSEL__) || defined(__MIPSEL) || defined(_MIPSEL) || defined(MIPSEL)
+ CPU=${UNAME_MACHINE}el
+ #else
+ #if defined(__MIPSEB__) || defined(__MIPSEB) || defined(_MIPSEB) || defined(MIPSEB)
+ CPU=${UNAME_MACHINE}
+ #else
+ CPU=
+ #endif
+ #endif
+EOF
+ eval "`$CC_FOR_BUILD -E "$dummy.c" 2>/dev/null | grep '^CPU'`"
+ test "x$CPU" != x && { echo "$CPU-unknown-linux-$LIBC"; exit; }
+ ;;
+ mips64el:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ openrisc*:Linux:*:*)
+ echo or1k-unknown-linux-"$LIBC"
+ exit ;;
+ or32:Linux:*:* | or1k*:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ padre:Linux:*:*)
+ echo sparc-unknown-linux-"$LIBC"
+ exit ;;
+ parisc64:Linux:*:* | hppa64:Linux:*:*)
+ echo hppa64-unknown-linux-"$LIBC"
+ exit ;;
+ parisc:Linux:*:* | hppa:Linux:*:*)
+ # Look for CPU level
+ case `grep '^cpu[^a-z]*:' /proc/cpuinfo 2>/dev/null | cut -d' ' -f2` in
+ PA7*) echo hppa1.1-unknown-linux-"$LIBC" ;;
+ PA8*) echo hppa2.0-unknown-linux-"$LIBC" ;;
+ *) echo hppa-unknown-linux-"$LIBC" ;;
+ esac
+ exit ;;
+ ppc64:Linux:*:*)
+ echo powerpc64-unknown-linux-"$LIBC"
+ exit ;;
+ ppc:Linux:*:*)
+ echo powerpc-unknown-linux-"$LIBC"
+ exit ;;
+ ppc64le:Linux:*:*)
+ echo powerpc64le-unknown-linux-"$LIBC"
+ exit ;;
+ ppcle:Linux:*:*)
+ echo powerpcle-unknown-linux-"$LIBC"
+ exit ;;
+ riscv32:Linux:*:* | riscv64:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ s390:Linux:*:* | s390x:Linux:*:*)
+ echo "$UNAME_MACHINE"-ibm-linux-"$LIBC"
+ exit ;;
+ sh64*:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ sh*:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ sparc:Linux:*:* | sparc64:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ tile*:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ vax:Linux:*:*)
+ echo "$UNAME_MACHINE"-dec-linux-"$LIBC"
+ exit ;;
+ x86_64:Linux:*:*)
+ echo "$UNAME_MACHINE"-pc-linux-"$LIBC"
+ exit ;;
+ xtensa*:Linux:*:*)
+ echo "$UNAME_MACHINE"-unknown-linux-"$LIBC"
+ exit ;;
+ i*86:DYNIX/ptx:4*:*)
+ # ptx 4.0 does uname -s correctly, with DYNIX/ptx in there.
+ # earlier versions are messed up and put the nodename in both
+ # sysname and nodename.
+ echo i386-sequent-sysv4
+ exit ;;
+ i*86:UNIX_SV:4.2MP:2.*)
+ # Unixware is an offshoot of SVR4, but it has its own version
+ # number series starting with 2...
+ # I am not positive that other SVR4 systems won't match this,
+ # I just have to hope. -- rms.
+ # Use sysv4.2uw... so that sysv4* matches it.
+ echo "$UNAME_MACHINE"-pc-sysv4.2uw"$UNAME_VERSION"
+ exit ;;
+ i*86:OS/2:*:*)
+ # If we were able to find `uname', then EMX Unix compatibility
+ # is probably installed.
+ echo "$UNAME_MACHINE"-pc-os2-emx
+ exit ;;
+ i*86:XTS-300:*:STOP)
+ echo "$UNAME_MACHINE"-unknown-stop
+ exit ;;
+ i*86:atheos:*:*)
+ echo "$UNAME_MACHINE"-unknown-atheos
+ exit ;;
+ i*86:syllable:*:*)
+ echo "$UNAME_MACHINE"-pc-syllable
+ exit ;;
+ i*86:LynxOS:2.*:* | i*86:LynxOS:3.[01]*:* | i*86:LynxOS:4.[02]*:*)
+ echo i386-unknown-lynxos"$UNAME_RELEASE"
+ exit ;;
+ i*86:*DOS:*:*)
+ echo "$UNAME_MACHINE"-pc-msdosdjgpp
+ exit ;;
+ i*86:*:4.*:*)
+ UNAME_REL=`echo "$UNAME_RELEASE" | sed 's/\/MP$//'`
+ if grep Novell /usr/include/link.h >/dev/null 2>/dev/null; then
+ echo "$UNAME_MACHINE"-univel-sysv"$UNAME_REL"
+ else
+ echo "$UNAME_MACHINE"-pc-sysv"$UNAME_REL"
+ fi
+ exit ;;
+ i*86:*:5:[678]*)
+ # UnixWare 7.x, OpenUNIX and OpenServer 6.
+ case `/bin/uname -X | grep "^Machine"` in
+ *486*) UNAME_MACHINE=i486 ;;
+ *Pentium) UNAME_MACHINE=i586 ;;
+ *Pent*|*Celeron) UNAME_MACHINE=i686 ;;
+ esac
+ echo "$UNAME_MACHINE-unknown-sysv${UNAME_RELEASE}${UNAME_SYSTEM}{$UNAME_VERSION}"
+ exit ;;
+ i*86:*:3.2:*)
+ if test -f /usr/options/cb.name; then
+ UNAME_REL=`sed -n 's/.*Version //p' </usr/options/cb.name`
+ echo "$UNAME_MACHINE"-pc-isc"$UNAME_REL"
+ elif /bin/uname -X 2>/dev/null >/dev/null ; then
+ UNAME_REL=`(/bin/uname -X|grep Release|sed -e 's/.*= //')`
+ (/bin/uname -X|grep i80486 >/dev/null) && UNAME_MACHINE=i486
+ (/bin/uname -X|grep '^Machine.*Pentium' >/dev/null) \
+ && UNAME_MACHINE=i586
+ (/bin/uname -X|grep '^Machine.*Pent *II' >/dev/null) \
+ && UNAME_MACHINE=i686
+ (/bin/uname -X|grep '^Machine.*Pentium Pro' >/dev/null) \
+ && UNAME_MACHINE=i686
+ echo "$UNAME_MACHINE"-pc-sco"$UNAME_REL"
+ else
+ echo "$UNAME_MACHINE"-pc-sysv32
+ fi
+ exit ;;
+ pc:*:*:*)
+ # Left here for compatibility:
+ # uname -m prints for DJGPP always 'pc', but it prints nothing about
+ # the processor, so we play safe by assuming i586.
+ # Note: whatever this is, it MUST be the same as what config.sub
+ # prints for the "djgpp" host, or else GDB configure will decide that
+ # this is a cross-build.
+ echo i586-pc-msdosdjgpp
+ exit ;;
+ Intel:Mach:3*:*)
+ echo i386-pc-mach3
+ exit ;;
+ paragon:*:*:*)
+ echo i860-intel-osf1
+ exit ;;
+ i860:*:4.*:*) # i860-SVR4
+ if grep Stardent /usr/include/sys/uadmin.h >/dev/null 2>&1 ; then
+ echo i860-stardent-sysv"$UNAME_RELEASE" # Stardent Vistra i860-SVR4
+ else # Add other i860-SVR4 vendors below as they are discovered.
+ echo i860-unknown-sysv"$UNAME_RELEASE" # Unknown i860-SVR4
+ fi
+ exit ;;
+ mini*:CTIX:SYS*5:*)
+ # "miniframe"
+ echo m68010-convergent-sysv
+ exit ;;
+ mc68k:UNIX:SYSTEM5:3.51m)
+ echo m68k-convergent-sysv
+ exit ;;
+ M680?0:D-NIX:5.3:*)
+ echo m68k-diab-dnix
+ exit ;;
+ M68*:*:R3V[5678]*:*)
+ test -r /sysV68 && { echo 'm68k-motorola-sysv'; exit; } ;;
+ 3[345]??:*:4.0:3.0 | 3[34]??A:*:4.0:3.0 | 3[34]??,*:*:4.0:3.0 | 3[34]??/*:*:4.0:3.0 | 4400:*:4.0:3.0 | 4850:*:4.0:3.0 | SKA40:*:4.0:3.0 | SDS2:*:4.0:3.0 | SHG2:*:4.0:3.0 | S7501*:*:4.0:3.0)
+ OS_REL=''
+ test -r /etc/.relid \
+ && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+ /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+ && { echo i486-ncr-sysv4.3"$OS_REL"; exit; }
+ /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+ && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;;
+ 3[34]??:*:4.0:* | 3[34]??,*:*:4.0:*)
+ /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+ && { echo i486-ncr-sysv4; exit; } ;;
+ NCR*:*:4.2:* | MPRAS*:*:4.2:*)
+ OS_REL='.3'
+ test -r /etc/.relid \
+ && OS_REL=.`sed -n 's/[^ ]* [^ ]* \([0-9][0-9]\).*/\1/p' < /etc/.relid`
+ /bin/uname -p 2>/dev/null | grep 86 >/dev/null \
+ && { echo i486-ncr-sysv4.3"$OS_REL"; exit; }
+ /bin/uname -p 2>/dev/null | /bin/grep entium >/dev/null \
+ && { echo i586-ncr-sysv4.3"$OS_REL"; exit; }
+ /bin/uname -p 2>/dev/null | /bin/grep pteron >/dev/null \
+ && { echo i586-ncr-sysv4.3"$OS_REL"; exit; } ;;
+ m68*:LynxOS:2.*:* | m68*:LynxOS:3.0*:*)
+ echo m68k-unknown-lynxos"$UNAME_RELEASE"
+ exit ;;
+ mc68030:UNIX_System_V:4.*:*)
+ echo m68k-atari-sysv4
+ exit ;;
+ TSUNAMI:LynxOS:2.*:*)
+ echo sparc-unknown-lynxos"$UNAME_RELEASE"
+ exit ;;
+ rs6000:LynxOS:2.*:*)
+ echo rs6000-unknown-lynxos"$UNAME_RELEASE"
+ exit ;;
+ PowerPC:LynxOS:2.*:* | PowerPC:LynxOS:3.[01]*:* | PowerPC:LynxOS:4.[02]*:*)
+ echo powerpc-unknown-lynxos"$UNAME_RELEASE"
+ exit ;;
+ SM[BE]S:UNIX_SV:*:*)
+ echo mips-dde-sysv"$UNAME_RELEASE"
+ exit ;;
+ RM*:ReliantUNIX-*:*:*)
+ echo mips-sni-sysv4
+ exit ;;
+ RM*:SINIX-*:*:*)
+ echo mips-sni-sysv4
+ exit ;;
+ *:SINIX-*:*:*)
+ if uname -p 2>/dev/null >/dev/null ; then
+ UNAME_MACHINE=`(uname -p) 2>/dev/null`
+ echo "$UNAME_MACHINE"-sni-sysv4
+ else
+ echo ns32k-sni-sysv
+ fi
+ exit ;;
+ PENTIUM:*:4.0*:*) # Unisys `ClearPath HMP IX 4000' SVR4/MP effort
+ # says <Richard.M.Bartel@ccMail.Census.GOV>
+ echo i586-unisys-sysv4
+ exit ;;
+ *:UNIX_System_V:4*:FTX*)
+ # From Gerald Hewes <hewes@openmarket.com>.
+ # How about differentiating between stratus architectures? -djm
+ echo hppa1.1-stratus-sysv4
+ exit ;;
+ *:*:*:FTX*)
+ # From seanf@swdc.stratus.com.
+ echo i860-stratus-sysv4
+ exit ;;
+ i*86:VOS:*:*)
+ # From Paul.Green@stratus.com.
+ echo "$UNAME_MACHINE"-stratus-vos
+ exit ;;
+ *:VOS:*:*)
+ # From Paul.Green@stratus.com.
+ echo hppa1.1-stratus-vos
+ exit ;;
+ mc68*:A/UX:*:*)
+ echo m68k-apple-aux"$UNAME_RELEASE"
+ exit ;;
+ news*:NEWS-OS:6*:*)
+ echo mips-sony-newsos6
+ exit ;;
+ R[34]000:*System_V*:*:* | R4000:UNIX_SYSV:*:* | R*000:UNIX_SV:*:*)
+ if [ -d /usr/nec ]; then
+ echo mips-nec-sysv"$UNAME_RELEASE"
+ else
+ echo mips-unknown-sysv"$UNAME_RELEASE"
+ fi
+ exit ;;
+ BeBox:BeOS:*:*) # BeOS running on hardware made by Be, PPC only.
+ echo powerpc-be-beos
+ exit ;;
+ BeMac:BeOS:*:*) # BeOS running on Mac or Mac clone, PPC only.
+ echo powerpc-apple-beos
+ exit ;;
+ BePC:BeOS:*:*) # BeOS running on Intel PC compatible.
+ echo i586-pc-beos
+ exit ;;
+ BePC:Haiku:*:*) # Haiku running on Intel PC compatible.
+ echo i586-pc-haiku
+ exit ;;
+ x86_64:Haiku:*:*)
+ echo x86_64-unknown-haiku
+ exit ;;
+ SX-4:SUPER-UX:*:*)
+ echo sx4-nec-superux"$UNAME_RELEASE"
+ exit ;;
+ SX-5:SUPER-UX:*:*)
+ echo sx5-nec-superux"$UNAME_RELEASE"
+ exit ;;
+ SX-6:SUPER-UX:*:*)
+ echo sx6-nec-superux"$UNAME_RELEASE"
+ exit ;;
+ SX-7:SUPER-UX:*:*)
+ echo sx7-nec-superux"$UNAME_RELEASE"
+ exit ;;
+ SX-8:SUPER-UX:*:*)
+ echo sx8-nec-superux"$UNAME_RELEASE"
+ exit ;;
+ SX-8R:SUPER-UX:*:*)
+ echo sx8r-nec-superux"$UNAME_RELEASE"
+ exit ;;
+ SX-ACE:SUPER-UX:*:*)
+ echo sxace-nec-superux"$UNAME_RELEASE"
+ exit ;;
+ Power*:Rhapsody:*:*)
+ echo powerpc-apple-rhapsody"$UNAME_RELEASE"
+ exit ;;
+ *:Rhapsody:*:*)
+ echo "$UNAME_MACHINE"-apple-rhapsody"$UNAME_RELEASE"
+ exit ;;
+ *:Darwin:*:*)
+ UNAME_PROCESSOR=`uname -p` || UNAME_PROCESSOR=unknown
+ eval "$set_cc_for_build"
+ if test "$UNAME_PROCESSOR" = unknown ; then
+ UNAME_PROCESSOR=powerpc
+ fi
+ if test "`echo "$UNAME_RELEASE" | sed -e 's/\..*//'`" -le 10 ; then
+ if [ "$CC_FOR_BUILD" != no_compiler_found ]; then
+ if (echo '#ifdef __LP64__'; echo IS_64BIT_ARCH; echo '#endif') | \
+ (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+ grep IS_64BIT_ARCH >/dev/null
+ then
+ case $UNAME_PROCESSOR in
+ i386) UNAME_PROCESSOR=x86_64 ;;
+ powerpc) UNAME_PROCESSOR=powerpc64 ;;
+ esac
+ fi
+ # On 10.4-10.6 one might compile for PowerPC via gcc -arch ppc
+ if (echo '#ifdef __POWERPC__'; echo IS_PPC; echo '#endif') | \
+ (CCOPTS="" $CC_FOR_BUILD -E - 2>/dev/null) | \
+ grep IS_PPC >/dev/null
+ then
+ UNAME_PROCESSOR=powerpc
+ fi
+ fi
+ elif test "$UNAME_PROCESSOR" = i386 ; then
+ # Avoid executing cc on OS X 10.9, as it ships with a stub
+ # that puts up a graphical alert prompting to install
+ # developer tools. Any system running Mac OS X 10.7 or
+ # later (Darwin 11 and later) is required to have a 64-bit
+ # processor. This is not true of the ARM version of Darwin
+ # that Apple uses in portable devices.
+ UNAME_PROCESSOR=x86_64
+ fi
+ echo "$UNAME_PROCESSOR"-apple-darwin"$UNAME_RELEASE"
+ exit ;;
+ *:procnto*:*:* | *:QNX:[0123456789]*:*)
+ UNAME_PROCESSOR=`uname -p`
+ if test "$UNAME_PROCESSOR" = x86; then
+ UNAME_PROCESSOR=i386
+ UNAME_MACHINE=pc
+ fi
+ echo "$UNAME_PROCESSOR"-"$UNAME_MACHINE"-nto-qnx"$UNAME_RELEASE"
+ exit ;;
+ *:QNX:*:4*)
+ echo i386-pc-qnx
+ exit ;;
+ NEO-*:NONSTOP_KERNEL:*:*)
+ echo neo-tandem-nsk"$UNAME_RELEASE"
+ exit ;;
+ NSE-*:NONSTOP_KERNEL:*:*)
+ echo nse-tandem-nsk"$UNAME_RELEASE"
+ exit ;;
+ NSR-*:NONSTOP_KERNEL:*:*)
+ echo nsr-tandem-nsk"$UNAME_RELEASE"
+ exit ;;
+ NSV-*:NONSTOP_KERNEL:*:*)
+ echo nsv-tandem-nsk"$UNAME_RELEASE"
+ exit ;;
+ NSX-*:NONSTOP_KERNEL:*:*)
+ echo nsx-tandem-nsk"$UNAME_RELEASE"
+ exit ;;
+ *:NonStop-UX:*:*)
+ echo mips-compaq-nonstopux
+ exit ;;
+ BS2000:POSIX*:*:*)
+ echo bs2000-siemens-sysv
+ exit ;;
+ DS/*:UNIX_System_V:*:*)
+ echo "$UNAME_MACHINE"-"$UNAME_SYSTEM"-"$UNAME_RELEASE"
+ exit ;;
+ *:Plan9:*:*)
+ # "uname -m" is not consistent, so use $cputype instead. 386
+ # is converted to i386 for consistency with other x86
+ # operating systems.
+ if test "$cputype" = 386; then
+ UNAME_MACHINE=i386
+ else
+ UNAME_MACHINE="$cputype"
+ fi
+ echo "$UNAME_MACHINE"-unknown-plan9
+ exit ;;
+ *:TOPS-10:*:*)
+ echo pdp10-unknown-tops10
+ exit ;;
+ *:TENEX:*:*)
+ echo pdp10-unknown-tenex
+ exit ;;
+ KS10:TOPS-20:*:* | KL10:TOPS-20:*:* | TYPE4:TOPS-20:*:*)
+ echo pdp10-dec-tops20
+ exit ;;
+ XKL-1:TOPS-20:*:* | TYPE5:TOPS-20:*:*)
+ echo pdp10-xkl-tops20
+ exit ;;
+ *:TOPS-20:*:*)
+ echo pdp10-unknown-tops20
+ exit ;;
+ *:ITS:*:*)
+ echo pdp10-unknown-its
+ exit ;;
+ SEI:*:*:SEIUX)
+ echo mips-sei-seiux"$UNAME_RELEASE"
+ exit ;;
+ *:DragonFly:*:*)
+ echo "$UNAME_MACHINE"-unknown-dragonfly"`echo "$UNAME_RELEASE"|sed -e 's/[-(].*//'`"
+ exit ;;
+ *:*VMS:*:*)
+ UNAME_MACHINE=`(uname -p) 2>/dev/null`
+ case "$UNAME_MACHINE" in
+ A*) echo alpha-dec-vms ; exit ;;
+ I*) echo ia64-dec-vms ; exit ;;
+ V*) echo vax-dec-vms ; exit ;;
+ esac ;;
+ *:XENIX:*:SysV)
+ echo i386-pc-xenix
+ exit ;;
+ i*86:skyos:*:*)
+ echo "$UNAME_MACHINE"-pc-skyos"`echo "$UNAME_RELEASE" | sed -e 's/ .*$//'`"
+ exit ;;
+ i*86:rdos:*:*)
+ echo "$UNAME_MACHINE"-pc-rdos
+ exit ;;
+ i*86:AROS:*:*)
+ echo "$UNAME_MACHINE"-pc-aros
+ exit ;;
+ x86_64:VMkernel:*:*)
+ echo "$UNAME_MACHINE"-unknown-esx
+ exit ;;
+ amd64:Isilon\ OneFS:*:*)
+ echo x86_64-unknown-onefs
+ exit ;;
+esac
+
+echo "$0: unable to guess system type" >&2
+
+case "$UNAME_MACHINE:$UNAME_SYSTEM" in
+ mips:Linux | mips64:Linux)
+ # If we got here on MIPS GNU/Linux, output extra information.
+ cat >&2 <<EOF
+
+NOTE: MIPS GNU/Linux systems require a C compiler to fully recognize
+the system type. Please install a C compiler and try again.
+EOF
+ ;;
+esac
+
+cat >&2 <<EOF
+
+This script (version $timestamp), has failed to recognize the
+operating system you are using. If your script is old, overwrite *all*
+copies of config.guess and config.sub with the latest versions from:
+
+ https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.guess
+and
+ https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
+
+If $0 has already been updated, send the following data and any
+information you think might be pertinent to config-patches@gnu.org to
+provide the necessary information to handle your system.
+
+config.guess timestamp = $timestamp
+
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null`
+/bin/uname -X = `(/bin/uname -X) 2>/dev/null`
+
+hostinfo = `(hostinfo) 2>/dev/null`
+/bin/universe = `(/bin/universe) 2>/dev/null`
+/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null`
+/bin/arch = `(/bin/arch) 2>/dev/null`
+/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null`
+
+UNAME_MACHINE = "$UNAME_MACHINE"
+UNAME_RELEASE = "$UNAME_RELEASE"
+UNAME_SYSTEM = "$UNAME_SYSTEM"
+UNAME_VERSION = "$UNAME_VERSION"
+EOF
+
+exit 1
+
+# Local variables:
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
--- /dev/null
+/* config.h.in. Generated from configure.ac by autoheader. */
+
+/* Define to 1 if you have the <alloca.h> header file. */
+#undef HAVE_ALLOCA_H
+
+/* __auto_type is available */
+#undef HAVE_AUTO_TYPE
+
+/* Define to 1 if you have the <byteswap.h> header file. */
+#undef HAVE_BYTESWAP_H
+
+/* com_err found at compile time. */
+#undef HAVE_COM_ERR
+
+/* curl found at compile time. */
+#undef HAVE_CURL
+
+/* CURLOPT_UNIX_SOCKET_PATH found at compile time. */
+#undef HAVE_CURLOPT_UNIX_SOCKET_PATH
+
+/* Define to 1 if you have the declaration of `program_invocation_short_name',
+ and to 0 if you don't. */
+#undef HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME
+
+/* Define to 1 if you have the `dladdr' function. */
+#undef HAVE_DLADDR
+
+/* Define to 1 if you have the <dlfcn.h> header file. */
+#undef HAVE_DLFCN_H
+
+/* Define to 1 if you have the <endian.h> header file. */
+#undef HAVE_ENDIAN_H
+
+/* ext2fs found at compile time. */
+#undef HAVE_EXT2FS
+
+/* Define to 1 if you have the `fdatasync' function. */
+#undef HAVE_FDATASYNC
+
+/* Define to 1 if you have the `get_current_dir_name' function. */
+#undef HAVE_GET_CURRENT_DIR_NAME
+
+/* gnutls found at compile time. */
+#undef HAVE_GNUTLS
+
+/* Define to 1 if you have the `gnutls_base64_decode2' function. */
+#undef HAVE_GNUTLS_BASE64_DECODE2
+
+/* Define to 1 if you have the `gnutls_certificate_set_known_dh_params'
+ function. */
+#undef HAVE_GNUTLS_CERTIFICATE_SET_KNOWN_DH_PARAMS
+
+/* Define to 1 if you have the `gnutls_session_set_verify_cert' function. */
+#undef HAVE_GNUTLS_SESSION_SET_VERIFY_CERT
+
+/* Define to 1 if you have the <inttypes.h> header file. */
+#undef HAVE_INTTYPES_H
+
+/* libguestfs found at compile time. */
+#undef HAVE_LIBGUESTFS
+
+/* liblzma found at compile time. */
+#undef HAVE_LIBLZMA
+
+/* libselinux found at compile time. */
+#undef HAVE_LIBSELINUX
+
+/* libvirt found at compile time. */
+#undef HAVE_LIBVIRT
+
+/* Define to 1 if you have the `lua_isinteger' function. */
+#undef HAVE_LUA_ISINTEGER
+
+/* Define to 1 if you have the <memory.h> header file. */
+#undef HAVE_MEMORY_H
+
+/* Define to 1 if you have the `mkostemp' function. */
+#undef HAVE_MKOSTEMP
+
+/* Define if you have POSIX threads libraries and header files. */
+#undef HAVE_PTHREAD
+
+/* Have PTHREAD_PRIO_INHERIT. */
+#undef HAVE_PTHREAD_PRIO_INHERIT
+
+/* Found PyString_AsString in libpython. */
+#undef HAVE_PYSTRING_ASSTRING
+
+/* Found PyString_FromString in libpython. */
+#undef HAVE_PYSTRING_FROMSTRING
+
+/* Python library found at compile time */
+#undef HAVE_PYTHON
+
+/* Found PyUnicode_AsUTF8 in libpython. */
+#undef HAVE_PYUNICODE_ASUTF8
+
+/* Define to 1 if you have the <stdint.h> header file. */
+#undef HAVE_STDINT_H
+
+/* Define to 1 if you have the <stdlib.h> header file. */
+#undef HAVE_STDLIB_H
+
+/* Define to 1 if you have the <strings.h> header file. */
+#undef HAVE_STRINGS_H
+
+/* Define to 1 if you have the <string.h> header file. */
+#undef HAVE_STRING_H
+
+/* Define to 1 if you have the <sys/endian.h> header file. */
+#undef HAVE_SYS_ENDIAN_H
+
+/* Define to 1 if you have the <sys/prctl.h> header file. */
+#undef HAVE_SYS_PRCTL_H
+
+/* Define to 1 if you have the <sys/procctl.h> header file. */
+#undef HAVE_SYS_PROCCTL_H
+
+/* Define to 1 if you have the <sys/stat.h> header file. */
+#undef HAVE_SYS_STAT_H
+
+/* Define to 1 if you have the <sys/types.h> header file. */
+#undef HAVE_SYS_TYPES_H
+
+/* Define to 1 if you have the <unistd.h> header file. */
+#undef HAVE_UNISTD_H
+
+/* Valgrind headers found at compile time */
+#undef HAVE_VALGRIND
+
+/* Define to 1 if vfprintf supports %m. */
+#undef HAVE_VFPRINTF_PERCENT_M
+
+/* zlib found at compile time. */
+#undef HAVE_ZLIB
+
+/* Program used by iso plugin to make ISOs. */
+#undef ISOPROG
+
+/* Temporary directory for large files */
+#undef LARGE_TMPDIR
+
+/* Define to the sub-directory where libtool stores uninstalled libraries. */
+#undef LT_OBJDIR
+
+/* Name of package */
+#undef PACKAGE
+
+/* Define to the address where bug reports for this package should be sent. */
+#undef PACKAGE_BUGREPORT
+
+/* Define to the full name of this package. */
+#undef PACKAGE_NAME
+
+/* Define to the full name and version of this package. */
+#undef PACKAGE_STRING
+
+/* Define to the one symbol short name of this package. */
+#undef PACKAGE_TARNAME
+
+/* Define to the home page for this package. */
+#undef PACKAGE_URL
+
+/* Define to the version of this package. */
+#undef PACKAGE_VERSION
+
+/* Define to 1 if the C compiler supports function prototypes. */
+#undef PROTOTYPES
+
+/* Define to necessary symbol if this constant uses a non-standard name on
+ your system. */
+#undef PTHREAD_CREATE_JOINABLE
+
+/* Define to 1 if you have the ANSI C header files. */
+#undef STDC_HEADERS
+
+/* Default TLS session priority string */
+#undef TLS_PRIORITY
+
+/* Enable extensions on AIX 3, Interix. */
+#ifndef _ALL_SOURCE
+# undef _ALL_SOURCE
+#endif
+/* Enable GNU extensions on systems that have them. */
+#ifndef _GNU_SOURCE
+# undef _GNU_SOURCE
+#endif
+/* Enable threading extensions on Solaris. */
+#ifndef _POSIX_PTHREAD_SEMANTICS
+# undef _POSIX_PTHREAD_SEMANTICS
+#endif
+/* Enable extensions on HP NonStop. */
+#ifndef _TANDEM_SOURCE
+# undef _TANDEM_SOURCE
+#endif
+/* Enable general extensions on Solaris. */
+#ifndef __EXTENSIONS__
+# undef __EXTENSIONS__
+#endif
+
+
+/* Version number of package */
+#undef VERSION
+
+/* Enable large inode numbers on Mac OS X 10.5. */
+#ifndef _DARWIN_USE_64_BIT_INODE
+# define _DARWIN_USE_64_BIT_INODE 1
+#endif
+
+/* Number of bits in a file offset, on hosts where this is settable. */
+#undef _FILE_OFFSET_BITS
+
+/* Define for large files, on AIX-style hosts. */
+#undef _LARGE_FILES
+
+/* Define to 1 if on MINIX. */
+#undef _MINIX
+
+/* Define to 2 if the system does not provide POSIX.1 features except with
+ this defined. */
+#undef _POSIX_1_SOURCE
+
+/* Define to 1 if you need to in order for `stat' and other things to work. */
+#undef _POSIX_SOURCE
+
+/* Define like PROTOTYPES; this can be used by system headers. */
+#undef __PROTOTYPES
--- /dev/null
+#! /bin/sh
+# Configuration validation subroutine script.
+# Copyright 1992-2018 Free Software Foundation, Inc.
+
+timestamp='2018-05-05'
+
+# This file is free software; you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program; if not, see <https://www.gnu.org/licenses/>.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that
+# program. This Exception is an additional permission under section 7
+# of the GNU General Public License, version 3 ("GPLv3").
+
+
+# Please send patches to <config-patches@gnu.org>.
+#
+# Configuration subroutine to validate and canonicalize a configuration type.
+# Supply the specified configuration type as an argument.
+# If it is invalid, we print an error message on stderr and exit with code 1.
+# Otherwise, we print the canonical config type on stdout and succeed.
+
+# You can get the latest version of this script from:
+# https://git.savannah.gnu.org/gitweb/?p=config.git;a=blob_plain;f=config.sub
+
+# This file is supposed to be the same for all GNU packages
+# and recognize all the CPU types, system types and aliases
+# that are meaningful with *any* GNU software.
+# Each package is responsible for reporting which valid configurations
+# it does not support. The user should be able to distinguish
+# a failure to support a valid configuration from a meaningless
+# configuration.
+
+# The goal of this file is to map all the various variations of a given
+# machine specification into a single specification in the form:
+# CPU_TYPE-MANUFACTURER-OPERATING_SYSTEM
+# or in some cases, the newer four-part form:
+# CPU_TYPE-MANUFACTURER-KERNEL-OPERATING_SYSTEM
+# It is wrong to echo any other type of specification.
+
+me=`echo "$0" | sed -e 's,.*/,,'`
+
+usage="\
+Usage: $0 [OPTION] CPU-MFR-OPSYS or ALIAS
+
+Canonicalize a configuration name.
+
+Options:
+ -h, --help print this help, then exit
+ -t, --time-stamp print date of last modification, then exit
+ -v, --version print version number, then exit
+
+Report bugs and patches to <config-patches@gnu.org>."
+
+version="\
+GNU config.sub ($timestamp)
+
+Copyright 1992-2018 Free Software Foundation, Inc.
+
+This is free software; see the source for copying conditions. There is NO
+warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE."
+
+help="
+Try \`$me --help' for more information."
+
+# Parse command line
+while test $# -gt 0 ; do
+ case $1 in
+ --time-stamp | --time* | -t )
+ echo "$timestamp" ; exit ;;
+ --version | -v )
+ echo "$version" ; exit ;;
+ --help | --h* | -h )
+ echo "$usage"; exit ;;
+ -- ) # Stop option processing
+ shift; break ;;
+ - ) # Use stdin as input.
+ break ;;
+ -* )
+ echo "$me: invalid option $1$help"
+ exit 1 ;;
+
+ *local*)
+ # First pass through any local machine types.
+ echo "$1"
+ exit ;;
+
+ * )
+ break ;;
+ esac
+done
+
+case $# in
+ 0) echo "$me: missing argument$help" >&2
+ exit 1;;
+ 1) ;;
+ *) echo "$me: too many arguments$help" >&2
+ exit 1;;
+esac
+
+# Spilt fields of configuration type
+IFS="-" read -r field1 field2 field3 field4 <<EOF
+$1
+EOF
+
+# Separate into logical components for further validation
+case $1 in
+ *-*-*-*)
+ basic_machine=$field1-$field2
+ os=-$field3-$field4
+ ;;
+ *-*-*)
+ # Ambiguous whether COMPANY is present, or skipped and KERNEL-OS is two
+ # parts
+ maybe_os=$field2-$field3
+ case $maybe_os in
+ nto-qnx* | linux-gnu* | linux-android* | linux-dietlibc \
+ | linux-newlib* | linux-musl* | linux-uclibc* | uclinux-uclibc* \
+ | uclinux-gnu* | kfreebsd*-gnu* | knetbsd*-gnu* | netbsd*-gnu* \
+ | netbsd*-eabi* | kopensolaris*-gnu* | cloudabi*-eabi* \
+ | storm-chaos* | os2-emx* | rtmk-nova*)
+ basic_machine=$field1
+ os=-$maybe_os
+ ;;
+ android-linux)
+ basic_machine=$field1-unknown
+ os=-linux-android
+ ;;
+ *)
+ basic_machine=$field1-$field2
+ os=-$field3
+ ;;
+ esac
+ ;;
+ *-*)
+ basic_machine=$field1
+ os=-$field2
+ ;;
+ *)
+ basic_machine=$1
+ os=
+ ;;
+esac
+
+### Let's recognize common machines as not being operating systems so
+### that things like config.sub decstation-3100 work. We also
+### recognize some manufacturers as not being operating systems, so we
+### can provide default operating systems below.
+case $os in
+ -sun*os*)
+ # Prevent following clause from handling this invalid input.
+ ;;
+ -dec* | -mips* | -sequent* | -encore* | -pc532* | -sgi* | -sony* | \
+ -att* | -7300* | -3300* | -delta* | -motorola* | -sun[234]* | \
+ -unicom* | -ibm* | -next | -hp | -isi* | -apollo | -altos* | \
+ -convergent* | -ncr* | -news | -32* | -3600* | -3100* | -hitachi* |\
+ -c[123]* | -convex* | -sun | -crds | -omron* | -dg | -ultra | -tti* | \
+ -harris | -dolphin | -highlevel | -gould | -cbm | -ns | -masscomp | \
+ -apple | -axis | -knuth | -cray | -microblaze*)
+ os=
+ basic_machine=$1
+ ;;
+ -bluegene*)
+ os=-cnk
+ ;;
+ -sim | -cisco | -oki | -wec | -winbond)
+ os=
+ basic_machine=$1
+ ;;
+ -scout)
+ ;;
+ -wrs)
+ os=-vxworks
+ basic_machine=$1
+ ;;
+ -chorusos*)
+ os=-chorusos
+ basic_machine=$1
+ ;;
+ -chorusrdb)
+ os=-chorusrdb
+ basic_machine=$1
+ ;;
+ -hiux*)
+ os=-hiuxwe2
+ ;;
+ -sco6)
+ os=-sco5v6
+ basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -sco5)
+ os=-sco3.2v5
+ basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -sco4)
+ os=-sco3.2v4
+ basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -sco3.2.[4-9]*)
+ os=`echo $os | sed -e 's/sco3.2./sco3.2v/'`
+ basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -sco3.2v[4-9]*)
+ # Don't forget version if it is 3.2v4 or newer.
+ basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -sco5v6*)
+ # Don't forget version if it is 3.2v4 or newer.
+ basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -sco*)
+ os=-sco3.2v2
+ basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -udk*)
+ basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -isc)
+ os=-isc2.2
+ basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -clix*)
+ basic_machine=clipper-intergraph
+ ;;
+ -isc*)
+ basic_machine=`echo "$1" | sed -e 's/86-.*/86-pc/'`
+ ;;
+ -lynx*178)
+ os=-lynxos178
+ ;;
+ -lynx*5)
+ os=-lynxos5
+ ;;
+ -lynx*)
+ os=-lynxos
+ ;;
+ -ptx*)
+ basic_machine=`echo "$1" | sed -e 's/86-.*/86-sequent/'`
+ ;;
+ -psos*)
+ os=-psos
+ ;;
+ -mint | -mint[0-9]*)
+ basic_machine=m68k-atari
+ os=-mint
+ ;;
+esac
+
+# Decode aliases for certain CPU-COMPANY combinations.
+case $basic_machine in
+ # Recognize the basic CPU types without company name.
+ # Some are omitted here because they have special meanings below.
+ 1750a | 580 \
+ | a29k \
+ | aarch64 | aarch64_be \
+ | alpha | alphaev[4-8] | alphaev56 | alphaev6[78] | alphapca5[67] \
+ | alpha64 | alpha64ev[4-8] | alpha64ev56 | alpha64ev6[78] | alpha64pca5[67] \
+ | am33_2.0 \
+ | arc | arceb \
+ | arm | arm[bl]e | arme[lb] | armv[2-8] | armv[3-8][lb] | armv6m | armv[78][arm] \
+ | avr | avr32 \
+ | ba \
+ | be32 | be64 \
+ | bfin \
+ | c4x | c8051 | clipper | csky \
+ | d10v | d30v | dlx | dsp16xx \
+ | e2k | epiphany \
+ | fido | fr30 | frv | ft32 \
+ | h8300 | h8500 | hppa | hppa1.[01] | hppa2.0 | hppa2.0[nw] | hppa64 \
+ | hexagon \
+ | i370 | i860 | i960 | ia16 | ia64 \
+ | ip2k | iq2000 \
+ | k1om \
+ | le32 | le64 \
+ | lm32 \
+ | m32c | m32r | m32rle | m68000 | m68k | m88k \
+ | maxq | mb | microblaze | microblazeel | mcore | mep | metag \
+ | mips | mipsbe | mipseb | mipsel | mipsle \
+ | mips16 \
+ | mips64 | mips64el \
+ | mips64octeon | mips64octeonel \
+ | mips64orion | mips64orionel \
+ | mips64r5900 | mips64r5900el \
+ | mips64vr | mips64vrel \
+ | mips64vr4100 | mips64vr4100el \
+ | mips64vr4300 | mips64vr4300el \
+ | mips64vr5000 | mips64vr5000el \
+ | mips64vr5900 | mips64vr5900el \
+ | mipsisa32 | mipsisa32el \
+ | mipsisa32r2 | mipsisa32r2el \
+ | mipsisa32r6 | mipsisa32r6el \
+ | mipsisa64 | mipsisa64el \
+ | mipsisa64r2 | mipsisa64r2el \
+ | mipsisa64r6 | mipsisa64r6el \
+ | mipsisa64sb1 | mipsisa64sb1el \
+ | mipsisa64sr71k | mipsisa64sr71kel \
+ | mipsr5900 | mipsr5900el \
+ | mipstx39 | mipstx39el \
+ | mn10200 | mn10300 \
+ | moxie \
+ | mt \
+ | msp430 \
+ | nds32 | nds32le | nds32be \
+ | nfp \
+ | nios | nios2 | nios2eb | nios2el \
+ | ns16k | ns32k \
+ | open8 | or1k | or1knd | or32 \
+ | pdp10 | pj | pjl \
+ | powerpc | powerpc64 | powerpc64le | powerpcle \
+ | pru \
+ | pyramid \
+ | riscv32 | riscv64 \
+ | rl78 | rx \
+ | score \
+ | sh | sh[1234] | sh[24]a | sh[24]aeb | sh[23]e | sh[234]eb | sheb | shbe | shle | sh[1234]le | sh3ele \
+ | sh64 | sh64le \
+ | sparc | sparc64 | sparc64b | sparc64v | sparc86x | sparclet | sparclite \
+ | sparcv8 | sparcv9 | sparcv9b | sparcv9v \
+ | spu \
+ | tahoe | tic4x | tic54x | tic55x | tic6x | tic80 | tron \
+ | ubicom32 \
+ | v850 | v850e | v850e1 | v850e2 | v850es | v850e2v3 \
+ | visium \
+ | wasm32 \
+ | x86 | xc16x | xstormy16 | xtensa \
+ | z8k | z80)
+ basic_machine=$basic_machine-unknown
+ ;;
+ c54x)
+ basic_machine=tic54x-unknown
+ ;;
+ c55x)
+ basic_machine=tic55x-unknown
+ ;;
+ c6x)
+ basic_machine=tic6x-unknown
+ ;;
+ leon|leon[3-9])
+ basic_machine=sparc-$basic_machine
+ ;;
+ m6811 | m68hc11 | m6812 | m68hc12 | m68hcs12x | nvptx | picochip)
+ basic_machine=$basic_machine-unknown
+ os=-none
+ ;;
+ m88110 | m680[12346]0 | m683?2 | m68360 | m5200 | v70 | w65)
+ ;;
+ m9s12z | m68hcs12z | hcs12z | s12z)
+ basic_machine=s12z-unknown
+ os=-none
+ ;;
+ ms1)
+ basic_machine=mt-unknown
+ ;;
+
+ strongarm | thumb | xscale)
+ basic_machine=arm-unknown
+ ;;
+ xgate)
+ basic_machine=$basic_machine-unknown
+ os=-none
+ ;;
+ xscaleeb)
+ basic_machine=armeb-unknown
+ ;;
+
+ xscaleel)
+ basic_machine=armel-unknown
+ ;;
+
+ # We use `pc' rather than `unknown'
+ # because (1) that's what they normally are, and
+ # (2) the word "unknown" tends to confuse beginning users.
+ i*86 | x86_64)
+ basic_machine=$basic_machine-pc
+ ;;
+ # Object if more than one company name word.
+ *-*-*)
+ echo Invalid configuration \`"$1"\': machine \`"$basic_machine"\' not recognized 1>&2
+ exit 1
+ ;;
+ # Recognize the basic CPU types with company name.
+ 580-* \
+ | a29k-* \
+ | aarch64-* | aarch64_be-* \
+ | alpha-* | alphaev[4-8]-* | alphaev56-* | alphaev6[78]-* \
+ | alpha64-* | alpha64ev[4-8]-* | alpha64ev56-* | alpha64ev6[78]-* \
+ | alphapca5[67]-* | alpha64pca5[67]-* | arc-* | arceb-* \
+ | arm-* | armbe-* | armle-* | armeb-* | armv*-* \
+ | avr-* | avr32-* \
+ | ba-* \
+ | be32-* | be64-* \
+ | bfin-* | bs2000-* \
+ | c[123]* | c30-* | [cjt]90-* | c4x-* \
+ | c8051-* | clipper-* | craynv-* | csky-* | cydra-* \
+ | d10v-* | d30v-* | dlx-* \
+ | e2k-* | elxsi-* \
+ | f30[01]-* | f700-* | fido-* | fr30-* | frv-* | fx80-* \
+ | h8300-* | h8500-* \
+ | hppa-* | hppa1.[01]-* | hppa2.0-* | hppa2.0[nw]-* | hppa64-* \
+ | hexagon-* \
+ | i*86-* | i860-* | i960-* | ia16-* | ia64-* \
+ | ip2k-* | iq2000-* \
+ | k1om-* \
+ | le32-* | le64-* \
+ | lm32-* \
+ | m32c-* | m32r-* | m32rle-* \
+ | m68000-* | m680[012346]0-* | m68360-* | m683?2-* | m68k-* \
+ | m88110-* | m88k-* | maxq-* | mcore-* | metag-* \
+ | microblaze-* | microblazeel-* \
+ | mips-* | mipsbe-* | mipseb-* | mipsel-* | mipsle-* \
+ | mips16-* \
+ | mips64-* | mips64el-* \
+ | mips64octeon-* | mips64octeonel-* \
+ | mips64orion-* | mips64orionel-* \
+ | mips64r5900-* | mips64r5900el-* \
+ | mips64vr-* | mips64vrel-* \
+ | mips64vr4100-* | mips64vr4100el-* \
+ | mips64vr4300-* | mips64vr4300el-* \
+ | mips64vr5000-* | mips64vr5000el-* \
+ | mips64vr5900-* | mips64vr5900el-* \
+ | mipsisa32-* | mipsisa32el-* \
+ | mipsisa32r2-* | mipsisa32r2el-* \
+ | mipsisa32r6-* | mipsisa32r6el-* \
+ | mipsisa64-* | mipsisa64el-* \
+ | mipsisa64r2-* | mipsisa64r2el-* \
+ | mipsisa64r6-* | mipsisa64r6el-* \
+ | mipsisa64sb1-* | mipsisa64sb1el-* \
+ | mipsisa64sr71k-* | mipsisa64sr71kel-* \
+ | mipsr5900-* | mipsr5900el-* \
+ | mipstx39-* | mipstx39el-* \
+ | mmix-* \
+ | mt-* \
+ | msp430-* \
+ | nds32-* | nds32le-* | nds32be-* \
+ | nfp-* \
+ | nios-* | nios2-* | nios2eb-* | nios2el-* \
+ | none-* | np1-* | ns16k-* | ns32k-* \
+ | open8-* \
+ | or1k*-* \
+ | orion-* \
+ | pdp10-* | pdp11-* | pj-* | pjl-* | pn-* | power-* \
+ | powerpc-* | powerpc64-* | powerpc64le-* | powerpcle-* \
+ | pru-* \
+ | pyramid-* \
+ | riscv32-* | riscv64-* \
+ | rl78-* | romp-* | rs6000-* | rx-* \
+ | sh-* | sh[1234]-* | sh[24]a-* | sh[24]aeb-* | sh[23]e-* | sh[34]eb-* | sheb-* | shbe-* \
+ | shle-* | sh[1234]le-* | sh3ele-* | sh64-* | sh64le-* \
+ | sparc-* | sparc64-* | sparc64b-* | sparc64v-* | sparc86x-* | sparclet-* \
+ | sparclite-* \
+ | sparcv8-* | sparcv9-* | sparcv9b-* | sparcv9v-* | sv1-* | sx*-* \
+ | tahoe-* \
+ | tic30-* | tic4x-* | tic54x-* | tic55x-* | tic6x-* | tic80-* \
+ | tile*-* \
+ | tron-* \
+ | ubicom32-* \
+ | v850-* | v850e-* | v850e1-* | v850es-* | v850e2-* | v850e2v3-* \
+ | vax-* \
+ | visium-* \
+ | wasm32-* \
+ | we32k-* \
+ | x86-* | x86_64-* | xc16x-* | xps100-* \
+ | xstormy16-* | xtensa*-* \
+ | ymp-* \
+ | z8k-* | z80-*)
+ ;;
+ # Recognize the basic CPU types without company name, with glob match.
+ xtensa*)
+ basic_machine=$basic_machine-unknown
+ ;;
+ # Recognize the various machine names and aliases which stand
+ # for a CPU type and a company and sometimes even an OS.
+ 386bsd)
+ basic_machine=i386-pc
+ os=-bsd
+ ;;
+ 3b1 | 7300 | 7300-att | att-7300 | pc7300 | safari | unixpc)
+ basic_machine=m68000-att
+ ;;
+ 3b*)
+ basic_machine=we32k-att
+ ;;
+ a29khif)
+ basic_machine=a29k-amd
+ os=-udi
+ ;;
+ abacus)
+ basic_machine=abacus-unknown
+ ;;
+ adobe68k)
+ basic_machine=m68010-adobe
+ os=-scout
+ ;;
+ alliant | fx80)
+ basic_machine=fx80-alliant
+ ;;
+ altos | altos3068)
+ basic_machine=m68k-altos
+ ;;
+ am29k)
+ basic_machine=a29k-none
+ os=-bsd
+ ;;
+ amd64)
+ basic_machine=x86_64-pc
+ ;;
+ amd64-*)
+ basic_machine=x86_64-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ ;;
+ amdahl)
+ basic_machine=580-amdahl
+ os=-sysv
+ ;;
+ amiga | amiga-*)
+ basic_machine=m68k-unknown
+ ;;
+ amigaos | amigados)
+ basic_machine=m68k-unknown
+ os=-amigaos
+ ;;
+ amigaunix | amix)
+ basic_machine=m68k-unknown
+ os=-sysv4
+ ;;
+ apollo68)
+ basic_machine=m68k-apollo
+ os=-sysv
+ ;;
+ apollo68bsd)
+ basic_machine=m68k-apollo
+ os=-bsd
+ ;;
+ aros)
+ basic_machine=i386-pc
+ os=-aros
+ ;;
+ asmjs)
+ basic_machine=asmjs-unknown
+ ;;
+ aux)
+ basic_machine=m68k-apple
+ os=-aux
+ ;;
+ balance)
+ basic_machine=ns32k-sequent
+ os=-dynix
+ ;;
+ blackfin)
+ basic_machine=bfin-unknown
+ os=-linux
+ ;;
+ blackfin-*)
+ basic_machine=bfin-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ os=-linux
+ ;;
+ bluegene*)
+ basic_machine=powerpc-ibm
+ os=-cnk
+ ;;
+ c54x-*)
+ basic_machine=tic54x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ ;;
+ c55x-*)
+ basic_machine=tic55x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ ;;
+ c6x-*)
+ basic_machine=tic6x-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ ;;
+ c90)
+ basic_machine=c90-cray
+ os=-unicos
+ ;;
+ cegcc)
+ basic_machine=arm-unknown
+ os=-cegcc
+ ;;
+ convex-c1)
+ basic_machine=c1-convex
+ os=-bsd
+ ;;
+ convex-c2)
+ basic_machine=c2-convex
+ os=-bsd
+ ;;
+ convex-c32)
+ basic_machine=c32-convex
+ os=-bsd
+ ;;
+ convex-c34)
+ basic_machine=c34-convex
+ os=-bsd
+ ;;
+ convex-c38)
+ basic_machine=c38-convex
+ os=-bsd
+ ;;
+ cray | j90)
+ basic_machine=j90-cray
+ os=-unicos
+ ;;
+ craynv)
+ basic_machine=craynv-cray
+ os=-unicosmp
+ ;;
+ cr16 | cr16-*)
+ basic_machine=cr16-unknown
+ os=-elf
+ ;;
+ crds | unos)
+ basic_machine=m68k-crds
+ ;;
+ crisv32 | crisv32-* | etraxfs*)
+ basic_machine=crisv32-axis
+ ;;
+ cris | cris-* | etrax*)
+ basic_machine=cris-axis
+ ;;
+ crx)
+ basic_machine=crx-unknown
+ os=-elf
+ ;;
+ da30 | da30-*)
+ basic_machine=m68k-da30
+ ;;
+ decstation | decstation-3100 | pmax | pmax-* | pmin | dec3100 | decstatn)
+ basic_machine=mips-dec
+ ;;
+ decsystem10* | dec10*)
+ basic_machine=pdp10-dec
+ os=-tops10
+ ;;
+ decsystem20* | dec20*)
+ basic_machine=pdp10-dec
+ os=-tops20
+ ;;
+ delta | 3300 | motorola-3300 | motorola-delta \
+ | 3300-motorola | delta-motorola)
+ basic_machine=m68k-motorola
+ ;;
+ delta88)
+ basic_machine=m88k-motorola
+ os=-sysv3
+ ;;
+ dicos)
+ basic_machine=i686-pc
+ os=-dicos
+ ;;
+ djgpp)
+ basic_machine=i586-pc
+ os=-msdosdjgpp
+ ;;
+ dpx20 | dpx20-*)
+ basic_machine=rs6000-bull
+ os=-bosx
+ ;;
+ dpx2*)
+ basic_machine=m68k-bull
+ os=-sysv3
+ ;;
+ e500v[12])
+ basic_machine=powerpc-unknown
+ os=$os"spe"
+ ;;
+ e500v[12]-*)
+ basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ os=$os"spe"
+ ;;
+ ebmon29k)
+ basic_machine=a29k-amd
+ os=-ebmon
+ ;;
+ elxsi)
+ basic_machine=elxsi-elxsi
+ os=-bsd
+ ;;
+ encore | umax | mmax)
+ basic_machine=ns32k-encore
+ ;;
+ es1800 | OSE68k | ose68k | ose | OSE)
+ basic_machine=m68k-ericsson
+ os=-ose
+ ;;
+ fx2800)
+ basic_machine=i860-alliant
+ ;;
+ genix)
+ basic_machine=ns32k-ns
+ ;;
+ gmicro)
+ basic_machine=tron-gmicro
+ os=-sysv
+ ;;
+ go32)
+ basic_machine=i386-pc
+ os=-go32
+ ;;
+ h3050r* | hiux*)
+ basic_machine=hppa1.1-hitachi
+ os=-hiuxwe2
+ ;;
+ h8300hms)
+ basic_machine=h8300-hitachi
+ os=-hms
+ ;;
+ h8300xray)
+ basic_machine=h8300-hitachi
+ os=-xray
+ ;;
+ h8500hms)
+ basic_machine=h8500-hitachi
+ os=-hms
+ ;;
+ harris)
+ basic_machine=m88k-harris
+ os=-sysv3
+ ;;
+ hp300-*)
+ basic_machine=m68k-hp
+ ;;
+ hp300bsd)
+ basic_machine=m68k-hp
+ os=-bsd
+ ;;
+ hp300hpux)
+ basic_machine=m68k-hp
+ os=-hpux
+ ;;
+ hp3k9[0-9][0-9] | hp9[0-9][0-9])
+ basic_machine=hppa1.0-hp
+ ;;
+ hp9k2[0-9][0-9] | hp9k31[0-9])
+ basic_machine=m68000-hp
+ ;;
+ hp9k3[2-9][0-9])
+ basic_machine=m68k-hp
+ ;;
+ hp9k6[0-9][0-9] | hp6[0-9][0-9])
+ basic_machine=hppa1.0-hp
+ ;;
+ hp9k7[0-79][0-9] | hp7[0-79][0-9])
+ basic_machine=hppa1.1-hp
+ ;;
+ hp9k78[0-9] | hp78[0-9])
+ # FIXME: really hppa2.0-hp
+ basic_machine=hppa1.1-hp
+ ;;
+ hp9k8[67]1 | hp8[67]1 | hp9k80[24] | hp80[24] | hp9k8[78]9 | hp8[78]9 | hp9k893 | hp893)
+ # FIXME: really hppa2.0-hp
+ basic_machine=hppa1.1-hp
+ ;;
+ hp9k8[0-9][13679] | hp8[0-9][13679])
+ basic_machine=hppa1.1-hp
+ ;;
+ hp9k8[0-9][0-9] | hp8[0-9][0-9])
+ basic_machine=hppa1.0-hp
+ ;;
+ hppaosf)
+ basic_machine=hppa1.1-hp
+ os=-osf
+ ;;
+ hppro)
+ basic_machine=hppa1.1-hp
+ os=-proelf
+ ;;
+ i370-ibm* | ibm*)
+ basic_machine=i370-ibm
+ ;;
+ i*86v32)
+ basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
+ os=-sysv32
+ ;;
+ i*86v4*)
+ basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
+ os=-sysv4
+ ;;
+ i*86v)
+ basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
+ os=-sysv
+ ;;
+ i*86sol2)
+ basic_machine=`echo "$1" | sed -e 's/86.*/86-pc/'`
+ os=-solaris2
+ ;;
+ i386mach)
+ basic_machine=i386-mach
+ os=-mach
+ ;;
+ vsta)
+ basic_machine=i386-unknown
+ os=-vsta
+ ;;
+ iris | iris4d)
+ basic_machine=mips-sgi
+ case $os in
+ -irix*)
+ ;;
+ *)
+ os=-irix4
+ ;;
+ esac
+ ;;
+ isi68 | isi)
+ basic_machine=m68k-isi
+ os=-sysv
+ ;;
+ leon-*|leon[3-9]-*)
+ basic_machine=sparc-`echo "$basic_machine" | sed 's/-.*//'`
+ ;;
+ m68knommu)
+ basic_machine=m68k-unknown
+ os=-linux
+ ;;
+ m68knommu-*)
+ basic_machine=m68k-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ os=-linux
+ ;;
+ magnum | m3230)
+ basic_machine=mips-mips
+ os=-sysv
+ ;;
+ merlin)
+ basic_machine=ns32k-utek
+ os=-sysv
+ ;;
+ microblaze*)
+ basic_machine=microblaze-xilinx
+ ;;
+ mingw64)
+ basic_machine=x86_64-pc
+ os=-mingw64
+ ;;
+ mingw32)
+ basic_machine=i686-pc
+ os=-mingw32
+ ;;
+ mingw32ce)
+ basic_machine=arm-unknown
+ os=-mingw32ce
+ ;;
+ miniframe)
+ basic_machine=m68000-convergent
+ ;;
+ *mint | -mint[0-9]* | *MiNT | *MiNT[0-9]*)
+ basic_machine=m68k-atari
+ os=-mint
+ ;;
+ mips3*-*)
+ basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'`
+ ;;
+ mips3*)
+ basic_machine=`echo "$basic_machine" | sed -e 's/mips3/mips64/'`-unknown
+ ;;
+ monitor)
+ basic_machine=m68k-rom68k
+ os=-coff
+ ;;
+ morphos)
+ basic_machine=powerpc-unknown
+ os=-morphos
+ ;;
+ moxiebox)
+ basic_machine=moxie-unknown
+ os=-moxiebox
+ ;;
+ msdos)
+ basic_machine=i386-pc
+ os=-msdos
+ ;;
+ ms1-*)
+ basic_machine=`echo "$basic_machine" | sed -e 's/ms1-/mt-/'`
+ ;;
+ msys)
+ basic_machine=i686-pc
+ os=-msys
+ ;;
+ mvs)
+ basic_machine=i370-ibm
+ os=-mvs
+ ;;
+ nacl)
+ basic_machine=le32-unknown
+ os=-nacl
+ ;;
+ ncr3000)
+ basic_machine=i486-ncr
+ os=-sysv4
+ ;;
+ netbsd386)
+ basic_machine=i386-unknown
+ os=-netbsd
+ ;;
+ netwinder)
+ basic_machine=armv4l-rebel
+ os=-linux
+ ;;
+ news | news700 | news800 | news900)
+ basic_machine=m68k-sony
+ os=-newsos
+ ;;
+ news1000)
+ basic_machine=m68030-sony
+ os=-newsos
+ ;;
+ news-3600 | risc-news)
+ basic_machine=mips-sony
+ os=-newsos
+ ;;
+ necv70)
+ basic_machine=v70-nec
+ os=-sysv
+ ;;
+ next | m*-next)
+ basic_machine=m68k-next
+ case $os in
+ -nextstep* )
+ ;;
+ -ns2*)
+ os=-nextstep2
+ ;;
+ *)
+ os=-nextstep3
+ ;;
+ esac
+ ;;
+ nh3000)
+ basic_machine=m68k-harris
+ os=-cxux
+ ;;
+ nh[45]000)
+ basic_machine=m88k-harris
+ os=-cxux
+ ;;
+ nindy960)
+ basic_machine=i960-intel
+ os=-nindy
+ ;;
+ mon960)
+ basic_machine=i960-intel
+ os=-mon960
+ ;;
+ nonstopux)
+ basic_machine=mips-compaq
+ os=-nonstopux
+ ;;
+ np1)
+ basic_machine=np1-gould
+ ;;
+ neo-tandem)
+ basic_machine=neo-tandem
+ ;;
+ nse-tandem)
+ basic_machine=nse-tandem
+ ;;
+ nsr-tandem)
+ basic_machine=nsr-tandem
+ ;;
+ nsv-tandem)
+ basic_machine=nsv-tandem
+ ;;
+ nsx-tandem)
+ basic_machine=nsx-tandem
+ ;;
+ op50n-* | op60c-*)
+ basic_machine=hppa1.1-oki
+ os=-proelf
+ ;;
+ openrisc | openrisc-*)
+ basic_machine=or32-unknown
+ ;;
+ os400)
+ basic_machine=powerpc-ibm
+ os=-os400
+ ;;
+ OSE68000 | ose68000)
+ basic_machine=m68000-ericsson
+ os=-ose
+ ;;
+ os68k)
+ basic_machine=m68k-none
+ os=-os68k
+ ;;
+ pa-hitachi)
+ basic_machine=hppa1.1-hitachi
+ os=-hiuxwe2
+ ;;
+ paragon)
+ basic_machine=i860-intel
+ os=-osf
+ ;;
+ parisc)
+ basic_machine=hppa-unknown
+ os=-linux
+ ;;
+ parisc-*)
+ basic_machine=hppa-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ os=-linux
+ ;;
+ pbd)
+ basic_machine=sparc-tti
+ ;;
+ pbb)
+ basic_machine=m68k-tti
+ ;;
+ pc532 | pc532-*)
+ basic_machine=ns32k-pc532
+ ;;
+ pc98)
+ basic_machine=i386-pc
+ ;;
+ pc98-*)
+ basic_machine=i386-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ ;;
+ pentium | p5 | k5 | k6 | nexgen | viac3)
+ basic_machine=i586-pc
+ ;;
+ pentiumpro | p6 | 6x86 | athlon | athlon_*)
+ basic_machine=i686-pc
+ ;;
+ pentiumii | pentium2 | pentiumiii | pentium3)
+ basic_machine=i686-pc
+ ;;
+ pentium4)
+ basic_machine=i786-pc
+ ;;
+ pentium-* | p5-* | k5-* | k6-* | nexgen-* | viac3-*)
+ basic_machine=i586-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ ;;
+ pentiumpro-* | p6-* | 6x86-* | athlon-*)
+ basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ ;;
+ pentiumii-* | pentium2-* | pentiumiii-* | pentium3-*)
+ basic_machine=i686-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ ;;
+ pentium4-*)
+ basic_machine=i786-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ ;;
+ pn)
+ basic_machine=pn-gould
+ ;;
+ power) basic_machine=power-ibm
+ ;;
+ ppc | ppcbe) basic_machine=powerpc-unknown
+ ;;
+ ppc-* | ppcbe-*)
+ basic_machine=powerpc-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ ;;
+ ppcle | powerpclittle)
+ basic_machine=powerpcle-unknown
+ ;;
+ ppcle-* | powerpclittle-*)
+ basic_machine=powerpcle-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ ;;
+ ppc64) basic_machine=powerpc64-unknown
+ ;;
+ ppc64-*) basic_machine=powerpc64-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ ;;
+ ppc64le | powerpc64little)
+ basic_machine=powerpc64le-unknown
+ ;;
+ ppc64le-* | powerpc64little-*)
+ basic_machine=powerpc64le-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ ;;
+ ps2)
+ basic_machine=i386-ibm
+ ;;
+ pw32)
+ basic_machine=i586-unknown
+ os=-pw32
+ ;;
+ rdos | rdos64)
+ basic_machine=x86_64-pc
+ os=-rdos
+ ;;
+ rdos32)
+ basic_machine=i386-pc
+ os=-rdos
+ ;;
+ rom68k)
+ basic_machine=m68k-rom68k
+ os=-coff
+ ;;
+ rm[46]00)
+ basic_machine=mips-siemens
+ ;;
+ rtpc | rtpc-*)
+ basic_machine=romp-ibm
+ ;;
+ s390 | s390-*)
+ basic_machine=s390-ibm
+ ;;
+ s390x | s390x-*)
+ basic_machine=s390x-ibm
+ ;;
+ sa29200)
+ basic_machine=a29k-amd
+ os=-udi
+ ;;
+ sb1)
+ basic_machine=mipsisa64sb1-unknown
+ ;;
+ sb1el)
+ basic_machine=mipsisa64sb1el-unknown
+ ;;
+ sde)
+ basic_machine=mipsisa32-sde
+ os=-elf
+ ;;
+ sei)
+ basic_machine=mips-sei
+ os=-seiux
+ ;;
+ sequent)
+ basic_machine=i386-sequent
+ ;;
+ sh5el)
+ basic_machine=sh5le-unknown
+ ;;
+ simso-wrs)
+ basic_machine=sparclite-wrs
+ os=-vxworks
+ ;;
+ sps7)
+ basic_machine=m68k-bull
+ os=-sysv2
+ ;;
+ spur)
+ basic_machine=spur-unknown
+ ;;
+ st2000)
+ basic_machine=m68k-tandem
+ ;;
+ stratus)
+ basic_machine=i860-stratus
+ os=-sysv4
+ ;;
+ strongarm-* | thumb-*)
+ basic_machine=arm-`echo "$basic_machine" | sed 's/^[^-]*-//'`
+ ;;
+ sun2)
+ basic_machine=m68000-sun
+ ;;
+ sun2os3)
+ basic_machine=m68000-sun
+ os=-sunos3
+ ;;
+ sun2os4)
+ basic_machine=m68000-sun
+ os=-sunos4
+ ;;
+ sun3os3)
+ basic_machine=m68k-sun
+ os=-sunos3
+ ;;
+ sun3os4)
+ basic_machine=m68k-sun
+ os=-sunos4
+ ;;
+ sun4os3)
+ basic_machine=sparc-sun
+ os=-sunos3
+ ;;
+ sun4os4)
+ basic_machine=sparc-sun
+ os=-sunos4
+ ;;
+ sun4sol2)
+ basic_machine=sparc-sun
+ os=-solaris2
+ ;;
+ sun3 | sun3-*)
+ basic_machine=m68k-sun
+ ;;
+ sun4)
+ basic_machine=sparc-sun
+ ;;
+ sun386 | sun386i | roadrunner)
+ basic_machine=i386-sun
+ ;;
+ sv1)
+ basic_machine=sv1-cray
+ os=-unicos
+ ;;
+ symmetry)
+ basic_machine=i386-sequent
+ os=-dynix
+ ;;
+ t3e)
+ basic_machine=alphaev5-cray
+ os=-unicos
+ ;;
+ t90)
+ basic_machine=t90-cray
+ os=-unicos
+ ;;
+ tile*)
+ basic_machine=$basic_machine-unknown
+ os=-linux-gnu
+ ;;
+ tx39)
+ basic_machine=mipstx39-unknown
+ ;;
+ tx39el)
+ basic_machine=mipstx39el-unknown
+ ;;
+ toad1)
+ basic_machine=pdp10-xkl
+ os=-tops20
+ ;;
+ tower | tower-32)
+ basic_machine=m68k-ncr
+ ;;
+ tpf)
+ basic_machine=s390x-ibm
+ os=-tpf
+ ;;
+ udi29k)
+ basic_machine=a29k-amd
+ os=-udi
+ ;;
+ ultra3)
+ basic_machine=a29k-nyu
+ os=-sym1
+ ;;
+ v810 | necv810)
+ basic_machine=v810-nec
+ os=-none
+ ;;
+ vaxv)
+ basic_machine=vax-dec
+ os=-sysv
+ ;;
+ vms)
+ basic_machine=vax-dec
+ os=-vms
+ ;;
+ vpp*|vx|vx-*)
+ basic_machine=f301-fujitsu
+ ;;
+ vxworks960)
+ basic_machine=i960-wrs
+ os=-vxworks
+ ;;
+ vxworks68)
+ basic_machine=m68k-wrs
+ os=-vxworks
+ ;;
+ vxworks29k)
+ basic_machine=a29k-wrs
+ os=-vxworks
+ ;;
+ w65*)
+ basic_machine=w65-wdc
+ os=-none
+ ;;
+ w89k-*)
+ basic_machine=hppa1.1-winbond
+ os=-proelf
+ ;;
+ x64)
+ basic_machine=x86_64-pc
+ ;;
+ xbox)
+ basic_machine=i686-pc
+ os=-mingw32
+ ;;
+ xps | xps100)
+ basic_machine=xps100-honeywell
+ ;;
+ xscale-* | xscalee[bl]-*)
+ basic_machine=`echo "$basic_machine" | sed 's/^xscale/arm/'`
+ ;;
+ ymp)
+ basic_machine=ymp-cray
+ os=-unicos
+ ;;
+ none)
+ basic_machine=none-none
+ os=-none
+ ;;
+
+# Here we handle the default manufacturer of certain CPU types. It is in
+# some cases the only manufacturer, in others, it is the most popular.
+ w89k)
+ basic_machine=hppa1.1-winbond
+ ;;
+ op50n)
+ basic_machine=hppa1.1-oki
+ ;;
+ op60c)
+ basic_machine=hppa1.1-oki
+ ;;
+ romp)
+ basic_machine=romp-ibm
+ ;;
+ mmix)
+ basic_machine=mmix-knuth
+ ;;
+ rs6000)
+ basic_machine=rs6000-ibm
+ ;;
+ vax)
+ basic_machine=vax-dec
+ ;;
+ pdp11)
+ basic_machine=pdp11-dec
+ ;;
+ we32k)
+ basic_machine=we32k-att
+ ;;
+ sh[1234] | sh[24]a | sh[24]aeb | sh[34]eb | sh[1234]le | sh[23]ele)
+ basic_machine=sh-unknown
+ ;;
+ cydra)
+ basic_machine=cydra-cydrome
+ ;;
+ orion)
+ basic_machine=orion-highlevel
+ ;;
+ orion105)
+ basic_machine=clipper-highlevel
+ ;;
+ mac | mpw | mac-mpw)
+ basic_machine=m68k-apple
+ ;;
+ pmac | pmac-mpw)
+ basic_machine=powerpc-apple
+ ;;
+ *-unknown)
+ # Make sure to match an already-canonicalized machine name.
+ ;;
+ *)
+ echo Invalid configuration \`"$1"\': machine \`"$basic_machine"\' not recognized 1>&2
+ exit 1
+ ;;
+esac
+
+# Here we canonicalize certain aliases for manufacturers.
+case $basic_machine in
+ *-digital*)
+ basic_machine=`echo "$basic_machine" | sed 's/digital.*/dec/'`
+ ;;
+ *-commodore*)
+ basic_machine=`echo "$basic_machine" | sed 's/commodore.*/cbm/'`
+ ;;
+ *)
+ ;;
+esac
+
+# Decode manufacturer-specific aliases for certain operating systems.
+
+if [ x$os != x ]
+then
+case $os in
+ # First match some system type aliases that might get confused
+ # with valid system types.
+ # -solaris* is a basic system type, with this one exception.
+ -auroraux)
+ os=-auroraux
+ ;;
+ -solaris1 | -solaris1.*)
+ os=`echo $os | sed -e 's|solaris1|sunos4|'`
+ ;;
+ -solaris)
+ os=-solaris2
+ ;;
+ -unixware*)
+ os=-sysv4.2uw
+ ;;
+ -gnu/linux*)
+ os=`echo $os | sed -e 's|gnu/linux|linux-gnu|'`
+ ;;
+ # es1800 is here to avoid being matched by es* (a different OS)
+ -es1800*)
+ os=-ose
+ ;;
+ # Now accept the basic system types.
+ # The portable systems comes first.
+ # Each alternative MUST end in a * to match a version number.
+ # -sysv* is not here because it comes later, after sysvr4.
+ -gnu* | -bsd* | -mach* | -minix* | -genix* | -ultrix* | -irix* \
+ | -*vms* | -sco* | -esix* | -isc* | -aix* | -cnk* | -sunos | -sunos[34]*\
+ | -hpux* | -unos* | -osf* | -luna* | -dgux* | -auroraux* | -solaris* \
+ | -sym* | -kopensolaris* | -plan9* \
+ | -amigaos* | -amigados* | -msdos* | -newsos* | -unicos* | -aof* \
+ | -aos* | -aros* | -cloudabi* | -sortix* \
+ | -nindy* | -vxsim* | -vxworks* | -ebmon* | -hms* | -mvs* \
+ | -clix* | -riscos* | -uniplus* | -iris* | -rtu* | -xenix* \
+ | -hiux* | -knetbsd* | -mirbsd* | -netbsd* \
+ | -bitrig* | -openbsd* | -solidbsd* | -libertybsd* \
+ | -ekkobsd* | -kfreebsd* | -freebsd* | -riscix* | -lynxos* \
+ | -bosx* | -nextstep* | -cxux* | -aout* | -elf* | -oabi* \
+ | -ptx* | -coff* | -ecoff* | -winnt* | -domain* | -vsta* \
+ | -udi* | -eabi* | -lites* | -ieee* | -go32* | -aux* | -hcos* \
+ | -chorusos* | -chorusrdb* | -cegcc* | -glidix* \
+ | -cygwin* | -msys* | -pe* | -psos* | -moss* | -proelf* | -rtems* \
+ | -midipix* | -mingw32* | -mingw64* | -linux-gnu* | -linux-android* \
+ | -linux-newlib* | -linux-musl* | -linux-uclibc* \
+ | -uxpv* | -beos* | -mpeix* | -udk* | -moxiebox* \
+ | -interix* | -uwin* | -mks* | -rhapsody* | -darwin* \
+ | -openstep* | -oskit* | -conix* | -pw32* | -nonstopux* \
+ | -storm-chaos* | -tops10* | -tenex* | -tops20* | -its* \
+ | -os2* | -vos* | -palmos* | -uclinux* | -nucleus* \
+ | -morphos* | -superux* | -rtmk* | -windiss* \
+ | -powermax* | -dnix* | -nx6 | -nx7 | -sei* | -dragonfly* \
+ | -skyos* | -haiku* | -rdos* | -toppers* | -drops* | -es* \
+ | -onefs* | -tirtos* | -phoenix* | -fuchsia* | -redox* | -bme* \
+ | -midnightbsd*)
+ # Remember, each alternative MUST END IN *, to match a version number.
+ ;;
+ -qnx*)
+ case $basic_machine in
+ x86-* | i*86-*)
+ ;;
+ *)
+ os=-nto$os
+ ;;
+ esac
+ ;;
+ -nto-qnx*)
+ ;;
+ -nto*)
+ os=`echo $os | sed -e 's|nto|nto-qnx|'`
+ ;;
+ -sim | -xray | -os68k* | -v88r* \
+ | -windows* | -osx | -abug | -netware* | -os9* \
+ | -macos* | -mpw* | -magic* | -mmixware* | -mon960* | -lnews*)
+ ;;
+ -mac*)
+ os=`echo "$os" | sed -e 's|mac|macos|'`
+ ;;
+ -linux-dietlibc)
+ os=-linux-dietlibc
+ ;;
+ -linux*)
+ os=`echo $os | sed -e 's|linux|linux-gnu|'`
+ ;;
+ -sunos5*)
+ os=`echo "$os" | sed -e 's|sunos5|solaris2|'`
+ ;;
+ -sunos6*)
+ os=`echo "$os" | sed -e 's|sunos6|solaris3|'`
+ ;;
+ -opened*)
+ os=-openedition
+ ;;
+ -os400*)
+ os=-os400
+ ;;
+ -wince*)
+ os=-wince
+ ;;
+ -utek*)
+ os=-bsd
+ ;;
+ -dynix*)
+ os=-bsd
+ ;;
+ -acis*)
+ os=-aos
+ ;;
+ -atheos*)
+ os=-atheos
+ ;;
+ -syllable*)
+ os=-syllable
+ ;;
+ -386bsd)
+ os=-bsd
+ ;;
+ -ctix* | -uts*)
+ os=-sysv
+ ;;
+ -nova*)
+ os=-rtmk-nova
+ ;;
+ -ns2)
+ os=-nextstep2
+ ;;
+ -nsk*)
+ os=-nsk
+ ;;
+ # Preserve the version number of sinix5.
+ -sinix5.*)
+ os=`echo $os | sed -e 's|sinix|sysv|'`
+ ;;
+ -sinix*)
+ os=-sysv4
+ ;;
+ -tpf*)
+ os=-tpf
+ ;;
+ -triton*)
+ os=-sysv3
+ ;;
+ -oss*)
+ os=-sysv3
+ ;;
+ -svr4*)
+ os=-sysv4
+ ;;
+ -svr3)
+ os=-sysv3
+ ;;
+ -sysvr4)
+ os=-sysv4
+ ;;
+ # This must come after -sysvr4.
+ -sysv*)
+ ;;
+ -ose*)
+ os=-ose
+ ;;
+ -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+ os=-mint
+ ;;
+ -zvmoe)
+ os=-zvmoe
+ ;;
+ -dicos*)
+ os=-dicos
+ ;;
+ -pikeos*)
+ # Until real need of OS specific support for
+ # particular features comes up, bare metal
+ # configurations are quite functional.
+ case $basic_machine in
+ arm*)
+ os=-eabi
+ ;;
+ *)
+ os=-elf
+ ;;
+ esac
+ ;;
+ -nacl*)
+ ;;
+ -ios)
+ ;;
+ -none)
+ ;;
+ -*-eabi)
+ case $basic_machine in
+ arm*)
+ ;;
+ esac
+ ;;
+ *)
+ # Get rid of the `-' at the beginning of $os.
+ os=`echo $os | sed 's/[^-]*-//'`
+ echo Invalid configuration \`"$1"\': system \`"$os"\' not recognized 1>&2
+ exit 1
+ ;;
+esac
+else
+
+# Here we handle the default operating systems that come with various machines.
+# The value should be what the vendor currently ships out the door with their
+# machine or put another way, the most popular os provided with the machine.
+
+# Note that if you're going to try to match "-MANUFACTURER" here (say,
+# "-sun"), then you have to tell the case statement up towards the top
+# that MANUFACTURER isn't an operating system. Otherwise, code above
+# will signal an error saying that MANUFACTURER isn't an operating
+# system, and we'll never get to this point.
+
+case $basic_machine in
+ score-*)
+ os=-elf
+ ;;
+ spu-*)
+ os=-elf
+ ;;
+ *-acorn)
+ os=-riscix1.2
+ ;;
+ arm*-rebel)
+ os=-linux
+ ;;
+ arm*-semi)
+ os=-aout
+ ;;
+ c4x-* | tic4x-*)
+ os=-coff
+ ;;
+ c8051-*)
+ os=-elf
+ ;;
+ hexagon-*)
+ os=-elf
+ ;;
+ tic54x-*)
+ os=-coff
+ ;;
+ tic55x-*)
+ os=-coff
+ ;;
+ tic6x-*)
+ os=-coff
+ ;;
+ # This must come before the *-dec entry.
+ pdp10-*)
+ os=-tops20
+ ;;
+ pdp11-*)
+ os=-none
+ ;;
+ *-dec | vax-*)
+ os=-ultrix4.2
+ ;;
+ m68*-apollo)
+ os=-domain
+ ;;
+ i386-sun)
+ os=-sunos4.0.2
+ ;;
+ m68000-sun)
+ os=-sunos3
+ ;;
+ m68*-cisco)
+ os=-aout
+ ;;
+ mep-*)
+ os=-elf
+ ;;
+ mips*-cisco)
+ os=-elf
+ ;;
+ mips*-*)
+ os=-elf
+ ;;
+ or32-*)
+ os=-coff
+ ;;
+ *-tti) # must be before sparc entry or we get the wrong os.
+ os=-sysv3
+ ;;
+ sparc-* | *-sun)
+ os=-sunos4.1.1
+ ;;
+ pru-*)
+ os=-elf
+ ;;
+ *-be)
+ os=-beos
+ ;;
+ *-ibm)
+ os=-aix
+ ;;
+ *-knuth)
+ os=-mmixware
+ ;;
+ *-wec)
+ os=-proelf
+ ;;
+ *-winbond)
+ os=-proelf
+ ;;
+ *-oki)
+ os=-proelf
+ ;;
+ *-hp)
+ os=-hpux
+ ;;
+ *-hitachi)
+ os=-hiux
+ ;;
+ i860-* | *-att | *-ncr | *-altos | *-motorola | *-convergent)
+ os=-sysv
+ ;;
+ *-cbm)
+ os=-amigaos
+ ;;
+ *-dg)
+ os=-dgux
+ ;;
+ *-dolphin)
+ os=-sysv3
+ ;;
+ m68k-ccur)
+ os=-rtu
+ ;;
+ m88k-omron*)
+ os=-luna
+ ;;
+ *-next)
+ os=-nextstep
+ ;;
+ *-sequent)
+ os=-ptx
+ ;;
+ *-crds)
+ os=-unos
+ ;;
+ *-ns)
+ os=-genix
+ ;;
+ i370-*)
+ os=-mvs
+ ;;
+ *-gould)
+ os=-sysv
+ ;;
+ *-highlevel)
+ os=-bsd
+ ;;
+ *-encore)
+ os=-bsd
+ ;;
+ *-sgi)
+ os=-irix
+ ;;
+ *-siemens)
+ os=-sysv4
+ ;;
+ *-masscomp)
+ os=-rtu
+ ;;
+ f30[01]-fujitsu | f700-fujitsu)
+ os=-uxpv
+ ;;
+ *-rom68k)
+ os=-coff
+ ;;
+ *-*bug)
+ os=-coff
+ ;;
+ *-apple)
+ os=-macos
+ ;;
+ *-atari*)
+ os=-mint
+ ;;
+ *)
+ os=-none
+ ;;
+esac
+fi
+
+# Here we handle the case where we know the os, and the CPU type, but not the
+# manufacturer. We pick the logical manufacturer.
+vendor=unknown
+case $basic_machine in
+ *-unknown)
+ case $os in
+ -riscix*)
+ vendor=acorn
+ ;;
+ -sunos*)
+ vendor=sun
+ ;;
+ -cnk*|-aix*)
+ vendor=ibm
+ ;;
+ -beos*)
+ vendor=be
+ ;;
+ -hpux*)
+ vendor=hp
+ ;;
+ -mpeix*)
+ vendor=hp
+ ;;
+ -hiux*)
+ vendor=hitachi
+ ;;
+ -unos*)
+ vendor=crds
+ ;;
+ -dgux*)
+ vendor=dg
+ ;;
+ -luna*)
+ vendor=omron
+ ;;
+ -genix*)
+ vendor=ns
+ ;;
+ -mvs* | -opened*)
+ vendor=ibm
+ ;;
+ -os400*)
+ vendor=ibm
+ ;;
+ -ptx*)
+ vendor=sequent
+ ;;
+ -tpf*)
+ vendor=ibm
+ ;;
+ -vxsim* | -vxworks* | -windiss*)
+ vendor=wrs
+ ;;
+ -aux*)
+ vendor=apple
+ ;;
+ -hms*)
+ vendor=hitachi
+ ;;
+ -mpw* | -macos*)
+ vendor=apple
+ ;;
+ -*mint | -mint[0-9]* | -*MiNT | -MiNT[0-9]*)
+ vendor=atari
+ ;;
+ -vos*)
+ vendor=stratus
+ ;;
+ esac
+ basic_machine=`echo "$basic_machine" | sed "s/unknown/$vendor/"`
+ ;;
+esac
+
+echo "$basic_machine$os"
+exit
+
+# Local variables:
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "timestamp='"
+# time-stamp-format: "%:y-%02m-%02d"
+# time-stamp-end: "'"
+# End:
--- /dev/null
+#! /bin/sh
+# Guess values for system-dependent variables and create Makefiles.
+# Generated by GNU Autoconf 2.69 for nbdkit 1.12.4.
+#
+#
+# Copyright (C) 1992-1996, 1998-2012 Free Software Foundation, Inc.
+#
+#
+# This configure script is free software; the Free Software Foundation
+# gives unlimited permission to copy, distribute and modify it.
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+ emulate sh
+ NULLCMD=:
+ # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+ # is contrary to our usage. Disable this feature.
+ alias -g '${1+"$@"}'='"$@"'
+ setopt NO_GLOB_SUBST
+else
+ case `(set -o) 2>/dev/null` in #(
+ *posix*) :
+ set -o posix ;; #(
+ *) :
+ ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+ && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+ as_echo='print -r --'
+ as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+ as_echo='printf %s\n'
+ as_echo_n='printf %s'
+else
+ if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+ as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+ as_echo_n='/usr/ucb/echo -n'
+ else
+ as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+ as_echo_n_body='eval
+ arg=$1;
+ case $arg in #(
+ *"$as_nl"*)
+ expr "X$arg" : "X\\(.*\\)$as_nl";
+ arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+ esac;
+ expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+ '
+ export as_echo_n_body
+ as_echo_n='sh -c $as_echo_n_body as_echo'
+ fi
+ export as_echo_body
+ as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+ PATH_SEPARATOR=:
+ (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+ (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+ PATH_SEPARATOR=';'
+ }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order. Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" "" $as_nl"
+
+# Find who we are. Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+ *[\\/]* ) as_myself=$0 ;;
+ *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+ done
+IFS=$as_save_IFS
+
+ ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+ as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+ $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+ exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there. '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+ && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+# Use a proper internal environment variable to ensure we don't fall
+ # into an infinite loop, continuously re-executing ourselves.
+ if test x"${_as_can_reexec}" != xno && test "x$CONFIG_SHELL" != x; then
+ _as_can_reexec=no; export _as_can_reexec;
+ # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+ *v*x* | *x*v* ) as_opts=-vx ;;
+ *v* ) as_opts=-v ;;
+ *x* ) as_opts=-x ;;
+ * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+as_fn_exit 255
+ fi
+ # We don't want this to propagate to other subprocesses.
+ { _as_can_reexec=; unset _as_can_reexec;}
+if test "x$CONFIG_SHELL" = x; then
+ as_bourne_compatible="if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then :
+ emulate sh
+ NULLCMD=:
+ # Pre-4.2 versions of Zsh do word splitting on \${1+\"\$@\"}, which
+ # is contrary to our usage. Disable this feature.
+ alias -g '\${1+\"\$@\"}'='\"\$@\"'
+ setopt NO_GLOB_SUBST
+else
+ case \`(set -o) 2>/dev/null\` in #(
+ *posix*) :
+ set -o posix ;; #(
+ *) :
+ ;;
+esac
+fi
+"
+ as_required="as_fn_return () { (exit \$1); }
+as_fn_success () { as_fn_return 0; }
+as_fn_failure () { as_fn_return 1; }
+as_fn_ret_success () { return 0; }
+as_fn_ret_failure () { return 1; }
+
+exitcode=0
+as_fn_success || { exitcode=1; echo as_fn_success failed.; }
+as_fn_failure && { exitcode=1; echo as_fn_failure succeeded.; }
+as_fn_ret_success || { exitcode=1; echo as_fn_ret_success failed.; }
+as_fn_ret_failure && { exitcode=1; echo as_fn_ret_failure succeeded.; }
+if ( set x; as_fn_ret_success y && test x = \"\$1\" ); then :
+
+else
+ exitcode=1; echo positional parameters were not saved.
+fi
+test x\$exitcode = x0 || exit 1
+test -x / || exit 1"
+ as_suggested=" as_lineno_1=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_1a=\$LINENO
+ as_lineno_2=";as_suggested=$as_suggested$LINENO;as_suggested=$as_suggested" as_lineno_2a=\$LINENO
+ eval 'test \"x\$as_lineno_1'\$as_run'\" != \"x\$as_lineno_2'\$as_run'\" &&
+ test \"x\`expr \$as_lineno_1'\$as_run' + 1\`\" = \"x\$as_lineno_2'\$as_run'\"' || exit 1
+test \$(( 1 + 1 )) = 2 || exit 1
+
+ test -n \"\${ZSH_VERSION+set}\${BASH_VERSION+set}\" || (
+ ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+ ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
+ ECHO=\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO\$ECHO
+ PATH=/empty FPATH=/empty; export PATH FPATH
+ test \"X\`printf %s \$ECHO\`\" = \"X\$ECHO\" \\
+ || test \"X\`print -r -- \$ECHO\`\" = \"X\$ECHO\" ) || exit 1"
+ if (eval "$as_required") 2>/dev/null; then :
+ as_have_required=yes
+else
+ as_have_required=no
+fi
+ if test x$as_have_required = xyes && (eval "$as_suggested") 2>/dev/null; then :
+
+else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+as_found=false
+for as_dir in /bin$PATH_SEPARATOR/usr/bin$PATH_SEPARATOR$PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ as_found=:
+ case $as_dir in #(
+ /*)
+ for as_base in sh bash ksh sh5; do
+ # Try only shells that exist, to save several forks.
+ as_shell=$as_dir/$as_base
+ if { test -f "$as_shell" || test -f "$as_shell.exe"; } &&
+ { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$as_shell"; } 2>/dev/null; then :
+ CONFIG_SHELL=$as_shell as_have_required=yes
+ if { $as_echo "$as_bourne_compatible""$as_suggested" | as_run=a "$as_shell"; } 2>/dev/null; then :
+ break 2
+fi
+fi
+ done;;
+ esac
+ as_found=false
+done
+$as_found || { if { test -f "$SHELL" || test -f "$SHELL.exe"; } &&
+ { $as_echo "$as_bourne_compatible""$as_required" | as_run=a "$SHELL"; } 2>/dev/null; then :
+ CONFIG_SHELL=$SHELL as_have_required=yes
+fi; }
+IFS=$as_save_IFS
+
+
+ if test "x$CONFIG_SHELL" != x; then :
+ export CONFIG_SHELL
+ # We cannot yet assume a decent shell, so we have to provide a
+# neutralization value for shells without unset; and this also
+# works around shells that cannot unset nonexistent variables.
+# Preserve -v and -x to the replacement shell.
+BASH_ENV=/dev/null
+ENV=/dev/null
+(unset BASH_ENV) >/dev/null 2>&1 && unset BASH_ENV ENV
+case $- in # ((((
+ *v*x* | *x*v* ) as_opts=-vx ;;
+ *v* ) as_opts=-v ;;
+ *x* ) as_opts=-x ;;
+ * ) as_opts= ;;
+esac
+exec $CONFIG_SHELL $as_opts "$as_myself" ${1+"$@"}
+# Admittedly, this is quite paranoid, since all the known shells bail
+# out after a failed `exec'.
+$as_echo "$0: could not re-execute with $CONFIG_SHELL" >&2
+exit 255
+fi
+
+ if test x$as_have_required = xno; then :
+ $as_echo "$0: This script requires a shell more modern than all"
+ $as_echo "$0: the shells that I found on your system."
+ if test x${ZSH_VERSION+set} = xset ; then
+ $as_echo "$0: In particular, zsh $ZSH_VERSION has bugs and should"
+ $as_echo "$0: be upgraded to zsh 4.3.4 or later."
+ else
+ $as_echo "$0: Please tell bug-autoconf@gnu.org about your system,
+$0: including any error possibly output before this
+$0: message. Then install a modern shell, or manually run
+$0: the script under such a shell if you do have one."
+ fi
+ exit 1
+fi
+fi
+fi
+SHELL=${CONFIG_SHELL-/bin/sh}
+export SHELL
+# Unset more variables known to interfere with behavior of common tools.
+CLICOLOR_FORCE= GREP_OPTIONS=
+unset CLICOLOR_FORCE GREP_OPTIONS
+
+## --------------------- ##
+## M4sh Shell Functions. ##
+## --------------------- ##
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+ { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+ return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+ set +e
+ as_fn_set_status $1
+ exit $1
+} # as_fn_exit
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+ case $as_dir in #(
+ -*) as_dir=./$as_dir;;
+ esac
+ test -d "$as_dir" || eval $as_mkdir_p || {
+ as_dirs=
+ while :; do
+ case $as_dir in #(
+ *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+ *) as_qdir=$as_dir;;
+ esac
+ as_dirs="'$as_qdir' $as_dirs"
+ as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$as_dir" : 'X\(//\)[^/]' \| \
+ X"$as_dir" : 'X\(//\)$' \| \
+ X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+ s//\1/
+ q
+ }
+ /^X\(\/\/\)[^/].*/{
+ s//\1/
+ q
+ }
+ /^X\(\/\/\)$/{
+ s//\1/
+ q
+ }
+ /^X\(\/\).*/{
+ s//\1/
+ q
+ }
+ s/.*/./; q'`
+ test -d "$as_dir" && break
+ done
+ test -z "$as_dirs" || eval "mkdir $as_dirs"
+ } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+ test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
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+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+ eval 'as_fn_append ()
+ {
+ eval $1+=\$2
+ }'
+else
+ as_fn_append ()
+ {
+ eval $1=\$$1\$2
+ }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+ eval 'as_fn_arith ()
+ {
+ as_val=$(( $* ))
+ }'
+else
+ as_fn_arith ()
+ {
+ as_val=`expr "$@" || test $? -eq 1`
+ }
+fi # as_fn_arith
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+ as_status=$1; test $as_status -eq 0 && as_status=1
+ if test "$4"; then
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+ $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+ fi
+ $as_echo "$as_me: error: $2" >&2
+ as_fn_exit $as_status
+} # as_fn_error
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+ test "X`expr 00001 : '.*\(...\)'`" = X001; then
+ as_expr=expr
+else
+ as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+ as_basename=basename
+else
+ as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
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+else
+ as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+ X"$0" : 'X\(//\)$' \| \
+ X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+ sed '/^.*\/\([^/][^/]*\)\/*$/{
+ s//\1/
+ q
+ }
+ /^X\/\(\/\/\)$/{
+ s//\1/
+ q
+ }
+ /^X\/\(\/\).*/{
+ s//\1/
+ q
+ }
+ s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+
+ as_lineno_1=$LINENO as_lineno_1a=$LINENO
+ as_lineno_2=$LINENO as_lineno_2a=$LINENO
+ eval 'test "x$as_lineno_1'$as_run'" != "x$as_lineno_2'$as_run'" &&
+ test "x`expr $as_lineno_1'$as_run' + 1`" = "x$as_lineno_2'$as_run'"' || {
+ # Blame Lee E. McMahon (1931-1989) for sed's syntax. :-)
+ sed -n '
+ p
+ /[$]LINENO/=
+ ' <$as_myself |
+ sed '
+ s/[$]LINENO.*/&-/
+ t lineno
+ b
+ :lineno
+ N
+ :loop
+ s/[$]LINENO\([^'$as_cr_alnum'_].*\n\)\(.*\)/\2\1\2/
+ t loop
+ s/-\n.*//
+ ' >$as_me.lineno &&
+ chmod +x "$as_me.lineno" ||
+ { $as_echo "$as_me: error: cannot create $as_me.lineno; rerun with a POSIX shell" >&2; as_fn_exit 1; }
+
+ # If we had to re-execute with $CONFIG_SHELL, we're ensured to have
+ # already done that, so ensure we don't try to do so again and fall
+ # in an infinite loop. This has already happened in practice.
+ _as_can_reexec=no; export _as_can_reexec
+ # Don't try to exec as it changes $[0], causing all sort of problems
+ # (the dirname of $[0] is not the place where we might find the
+ # original and so on. Autoconf is especially sensitive to this).
+ . "./$as_me.lineno"
+ # Exit status is that of the last command.
+ exit
+}
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+ case `echo 'xy\c'` in
+ *c*) ECHO_T=' ';; # ECHO_T is single tab character.
+ xy) ECHO_C='\c';;
+ *) echo `echo ksh88 bug on AIX 6.1` > /dev/null
+ ECHO_T=' ';;
+ esac;;
+*)
+ ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+ rm -f conf$$.dir/conf$$.file
+else
+ rm -f conf$$.dir
+ mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+ if ln -s conf$$.file conf$$ 2>/dev/null; then
+ as_ln_s='ln -s'
+ # ... but there are two gotchas:
+ # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+ # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+ # In both cases, we have to default to `cp -pR'.
+ ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+ as_ln_s='cp -pR'
+ elif ln conf$$.file conf$$ 2>/dev/null; then
+ as_ln_s=ln
+ else
+ as_ln_s='cp -pR'
+ fi
+else
+ as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+if mkdir -p . 2>/dev/null; then
+ as_mkdir_p='mkdir -p "$as_dir"'
+else
+ test -d ./-p && rmdir ./-p
+ as_mkdir_p=false
+fi
+
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
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+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+SHELL=${CONFIG_SHELL-/bin/sh}
+
+
+test -n "$DJDIR" || exec 7<&0 </dev/null
+exec 6>&1
+
+# Name of the host.
+# hostname on some systems (SVR3.2, old GNU/Linux) returns a bogus exit status,
+# so uname gets run too.
+ac_hostname=`(hostname || uname -n) 2>/dev/null | sed 1q`
+
+#
+# Initializations.
+#
+ac_default_prefix=/usr/local
+ac_clean_files=
+ac_config_libobj_dir=.
+LIBOBJS=
+cross_compiling=no
+subdirs=
+MFLAGS=
+MAKEFLAGS=
+
+# Identity of this package.
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+PACKAGE_TARNAME='nbdkit'
+PACKAGE_VERSION='1.12.4'
+PACKAGE_STRING='nbdkit 1.12.4'
+PACKAGE_BUGREPORT=''
+PACKAGE_URL=''
+
+# Factoring default headers for most tests.
+ac_includes_default="\
+#include <stdio.h>
+#ifdef HAVE_SYS_TYPES_H
+# include <sys/types.h>
+#endif
+#ifdef HAVE_SYS_STAT_H
+# include <sys/stat.h>
+#endif
+#ifdef STDC_HEADERS
+# include <stdlib.h>
+# include <stddef.h>
+#else
+# ifdef HAVE_STDLIB_H
+# include <stdlib.h>
+# endif
+#endif
+#ifdef HAVE_STRING_H
+# if !defined STDC_HEADERS && defined HAVE_MEMORY_H
+# include <memory.h>
+# endif
+# include <string.h>
+#endif
+#ifdef HAVE_STRINGS_H
+# include <strings.h>
+#endif
+#ifdef HAVE_INTTYPES_H
+# include <inttypes.h>
+#endif
+#ifdef HAVE_STDINT_H
+# include <stdint.h>
+#endif
+#ifdef HAVE_UNISTD_H
+# include <unistd.h>
+#endif"
+
+ac_subst_vars='am__EXEEXT_FALSE
+am__EXEEXT_TRUE
+LTLIBOBJS
+LIBOBJS
+filters
+non_lang_plugins
+lang_plugins
+plugins
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+HAVE_EXT2_FALSE
+HAVE_EXT2_TRUE
+COM_ERR_LIBS
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+HAVE_GUESTFISH_TRUE
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+HAVE_LIBGUESTFS_TRUE
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+LIBVIRT_CFLAGS
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+HAVE_ISO_TRUE
+ISOPROG
+MKISOFS
+GENISOIMAGE
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+HAVE_OCAML_TRUE
+OCAMLBUILD
+OCAMLDOC
+OCAMLMKLIB
+OCAMLMKTOP
+OCAMLDEP
+OCAML
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+OCAMLCDOTOPT
+OCAMLBEST
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+OCAMLC
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+PODWRAPPER
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+PERL
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+HAVE_BASH_COMPLETION_TRUE
+bashcompdir
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+LIBSELINUX_LIBS
+LIBSELINUX_CFLAGS
+PKG_CONFIG_LIBDIR
+PKG_CONFIG_PATH
+PKG_CONFIG
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+OTOOL64
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+MANIFEST_TOOL
+RANLIB
+ac_ct_AR
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+DLLTOOL
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+LD
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+with_aix_soname
+with_gnu_ld
+with_sysroot
+enable_libtool_lock
+enable_gcc_warnings
+with_iconv
+with_tls_priority
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+enable_perl
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+enable_ruby
+enable_tcl
+enable_lua
+with_curl
+with_ssh
+with_iso
+with_libvirt
+with_zlib
+with_liblzma
+with_libguestfs
+with_ext2
+enable_vddk
+'
+ ac_precious_vars='build_alias
+host_alias
+target_alias
+CC
+CFLAGS
+LDFLAGS
+LIBS
+CPPFLAGS
+CPP
+LT_SYS_LIBRARY_PATH
+CXX
+CXXFLAGS
+CCC
+CXXCPP
+PKG_CONFIG
+PKG_CONFIG_PATH
+PKG_CONFIG_LIBDIR
+LIBSELINUX_CFLAGS
+LIBSELINUX_LIBS
+GNUTLS_CFLAGS
+GNUTLS_LIBS
+VALGRIND_CFLAGS
+VALGRIND_LIBS
+BASH_COMPLETION_CFLAGS
+BASH_COMPLETION_LIBS
+bashcompdir
+PYTHON_CFLAGS
+PYTHON_LIBS
+RUBY_CFLAGS
+RUBY_LIBS
+TCL_CFLAGS
+TCL_LIBS
+LUA_CFLAGS
+LUA_LIBS
+CURL_CFLAGS
+CURL_LIBS
+SSH_CFLAGS
+SSH_LIBS
+LIBVIRT_CFLAGS
+LIBVIRT_LIBS
+ZLIB_CFLAGS
+ZLIB_LIBS
+LIBLZMA_CFLAGS
+LIBLZMA_LIBS
+LIBGUESTFS_CFLAGS
+LIBGUESTFS_LIBS
+EXT2FS_CFLAGS
+EXT2FS_LIBS
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+COM_ERR_LIBS'
+
+
+# Initialize some variables set by options.
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+ac_init_version=false
+ac_unrecognized_opts=
+ac_unrecognized_sep=
+# The variables have the same names as the options, with
+# dashes changed to underlines.
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+exec_prefix=NONE
+no_create=
+no_recursion=
+prefix=NONE
+program_prefix=NONE
+program_suffix=NONE
+program_transform_name=s,x,x,
+silent=
+site=
+srcdir=
+verbose=
+x_includes=NONE
+x_libraries=NONE
+
+# Installation directory options.
+# These are left unexpanded so users can "make install exec_prefix=/foo"
+# and all the variables that are supposed to be based on exec_prefix
+# by default will actually change.
+# Use braces instead of parens because sh, perl, etc. also accept them.
+# (The list follows the same order as the GNU Coding Standards.)
+bindir='${exec_prefix}/bin'
+sbindir='${exec_prefix}/sbin'
+libexecdir='${exec_prefix}/libexec'
+datarootdir='${prefix}/share'
+datadir='${datarootdir}'
+sysconfdir='${prefix}/etc'
+sharedstatedir='${prefix}/com'
+localstatedir='${prefix}/var'
+includedir='${prefix}/include'
+oldincludedir='/usr/include'
+docdir='${datarootdir}/doc/${PACKAGE_TARNAME}'
+infodir='${datarootdir}/info'
+htmldir='${docdir}'
+dvidir='${docdir}'
+pdfdir='${docdir}'
+psdir='${docdir}'
+libdir='${exec_prefix}/lib'
+localedir='${datarootdir}/locale'
+mandir='${datarootdir}/man'
+
+ac_prev=
+ac_dashdash=
+for ac_option
+do
+ # If the previous option needs an argument, assign it.
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+ ac_prev=
+ continue
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+ *=) ac_optarg= ;;
+ *) ac_optarg=yes ;;
+ esac
+
+ # Accept the important Cygnus configure options, so we can diagnose typos.
+
+ case $ac_dashdash$ac_option in
+ --)
+ ac_dashdash=yes ;;
+
+ -bindir | --bindir | --bindi | --bind | --bin | --bi)
+ ac_prev=bindir ;;
+ -bindir=* | --bindir=* | --bindi=* | --bind=* | --bin=* | --bi=*)
+ bindir=$ac_optarg ;;
+
+ -build | --build | --buil | --bui | --bu)
+ ac_prev=build_alias ;;
+ -build=* | --build=* | --buil=* | --bui=* | --bu=*)
+ build_alias=$ac_optarg ;;
+
+ -cache-file | --cache-file | --cache-fil | --cache-fi \
+ | --cache-f | --cache- | --cache | --cach | --cac | --ca | --c)
+ ac_prev=cache_file ;;
+ -cache-file=* | --cache-file=* | --cache-fil=* | --cache-fi=* \
+ | --cache-f=* | --cache-=* | --cache=* | --cach=* | --cac=* | --ca=* | --c=*)
+ cache_file=$ac_optarg ;;
+
+ --config-cache | -C)
+ cache_file=config.cache ;;
+
+ -datadir | --datadir | --datadi | --datad)
+ ac_prev=datadir ;;
+ -datadir=* | --datadir=* | --datadi=* | --datad=*)
+ datadir=$ac_optarg ;;
+
+ -datarootdir | --datarootdir | --datarootdi | --datarootd | --dataroot \
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+ ac_prev=datarootdir ;;
+ -datarootdir=* | --datarootdir=* | --datarootdi=* | --datarootd=* \
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+ datarootdir=$ac_optarg ;;
+
+ -disable-* | --disable-*)
+ ac_useropt=`expr "x$ac_option" : 'x-*disable-\(.*\)'`
+ # Reject names that are not valid shell variable names.
+ expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+ as_fn_error $? "invalid feature name: $ac_useropt"
+ ac_useropt_orig=$ac_useropt
+ ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+ case $ac_user_opts in
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+"*) ;;
+ *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--disable-$ac_useropt_orig"
+ ac_unrecognized_sep=', ';;
+ esac
+ eval enable_$ac_useropt=no ;;
+
+ -docdir | --docdir | --docdi | --doc | --do)
+ ac_prev=docdir ;;
+ -docdir=* | --docdir=* | --docdi=* | --doc=* | --do=*)
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+ -dvidir | --dvidir | --dvidi | --dvid | --dvi | --dv)
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+ -dvidir=* | --dvidir=* | --dvidi=* | --dvid=* | --dvi=* | --dv=*)
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+
+ -enable-* | --enable-*)
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+ # Reject names that are not valid shell variable names.
+ expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+ as_fn_error $? "invalid feature name: $ac_useropt"
+ ac_useropt_orig=$ac_useropt
+ ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+ case $ac_user_opts in
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+"enable_$ac_useropt"
+"*) ;;
+ *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--enable-$ac_useropt_orig"
+ ac_unrecognized_sep=', ';;
+ esac
+ eval enable_$ac_useropt=\$ac_optarg ;;
+
+ -exec-prefix | --exec_prefix | --exec-prefix | --exec-prefi \
+ | --exec-pref | --exec-pre | --exec-pr | --exec-p | --exec- \
+ | --exec | --exe | --ex)
+ ac_prev=exec_prefix ;;
+ -exec-prefix=* | --exec_prefix=* | --exec-prefix=* | --exec-prefi=* \
+ | --exec-pref=* | --exec-pre=* | --exec-pr=* | --exec-p=* | --exec-=* \
+ | --exec=* | --exe=* | --ex=*)
+ exec_prefix=$ac_optarg ;;
+
+ -gas | --gas | --ga | --g)
+ # Obsolete; use --with-gas.
+ with_gas=yes ;;
+
+ -help | --help | --hel | --he | -h)
+ ac_init_help=long ;;
+ -help=r* | --help=r* | --hel=r* | --he=r* | -hr*)
+ ac_init_help=recursive ;;
+ -help=s* | --help=s* | --hel=s* | --he=s* | -hs*)
+ ac_init_help=short ;;
+
+ -host | --host | --hos | --ho)
+ ac_prev=host_alias ;;
+ -host=* | --host=* | --hos=* | --ho=*)
+ host_alias=$ac_optarg ;;
+
+ -htmldir | --htmldir | --htmldi | --htmld | --html | --htm | --ht)
+ ac_prev=htmldir ;;
+ -htmldir=* | --htmldir=* | --htmldi=* | --htmld=* | --html=* | --htm=* \
+ | --ht=*)
+ htmldir=$ac_optarg ;;
+
+ -includedir | --includedir | --includedi | --included | --include \
+ | --includ | --inclu | --incl | --inc)
+ ac_prev=includedir ;;
+ -includedir=* | --includedir=* | --includedi=* | --included=* | --include=* \
+ | --includ=* | --inclu=* | --incl=* | --inc=*)
+ includedir=$ac_optarg ;;
+
+ -infodir | --infodir | --infodi | --infod | --info | --inf)
+ ac_prev=infodir ;;
+ -infodir=* | --infodir=* | --infodi=* | --infod=* | --info=* | --inf=*)
+ infodir=$ac_optarg ;;
+
+ -libdir | --libdir | --libdi | --libd)
+ ac_prev=libdir ;;
+ -libdir=* | --libdir=* | --libdi=* | --libd=*)
+ libdir=$ac_optarg ;;
+
+ -libexecdir | --libexecdir | --libexecdi | --libexecd | --libexec \
+ | --libexe | --libex | --libe)
+ ac_prev=libexecdir ;;
+ -libexecdir=* | --libexecdir=* | --libexecdi=* | --libexecd=* | --libexec=* \
+ | --libexe=* | --libex=* | --libe=*)
+ libexecdir=$ac_optarg ;;
+
+ -localedir | --localedir | --localedi | --localed | --locale)
+ ac_prev=localedir ;;
+ -localedir=* | --localedir=* | --localedi=* | --localed=* | --locale=*)
+ localedir=$ac_optarg ;;
+
+ -localstatedir | --localstatedir | --localstatedi | --localstated \
+ | --localstate | --localstat | --localsta | --localst | --locals)
+ ac_prev=localstatedir ;;
+ -localstatedir=* | --localstatedir=* | --localstatedi=* | --localstated=* \
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+ localstatedir=$ac_optarg ;;
+
+ -mandir | --mandir | --mandi | --mand | --man | --ma | --m)
+ ac_prev=mandir ;;
+ -mandir=* | --mandir=* | --mandi=* | --mand=* | --man=* | --ma=* | --m=*)
+ mandir=$ac_optarg ;;
+
+ -nfp | --nfp | --nf)
+ # Obsolete; use --without-fp.
+ with_fp=no ;;
+
+ -no-create | --no-create | --no-creat | --no-crea | --no-cre \
+ | --no-cr | --no-c | -n)
+ no_create=yes ;;
+
+ -no-recursion | --no-recursion | --no-recursio | --no-recursi \
+ | --no-recurs | --no-recur | --no-recu | --no-rec | --no-re | --no-r)
+ no_recursion=yes ;;
+
+ -oldincludedir | --oldincludedir | --oldincludedi | --oldincluded \
+ | --oldinclude | --oldinclud | --oldinclu | --oldincl | --oldinc \
+ | --oldin | --oldi | --old | --ol | --o)
+ ac_prev=oldincludedir ;;
+ -oldincludedir=* | --oldincludedir=* | --oldincludedi=* | --oldincluded=* \
+ | --oldinclude=* | --oldinclud=* | --oldinclu=* | --oldincl=* | --oldinc=* \
+ | --oldin=* | --oldi=* | --old=* | --ol=* | --o=*)
+ oldincludedir=$ac_optarg ;;
+
+ -prefix | --prefix | --prefi | --pref | --pre | --pr | --p)
+ ac_prev=prefix ;;
+ -prefix=* | --prefix=* | --prefi=* | --pref=* | --pre=* | --pr=* | --p=*)
+ prefix=$ac_optarg ;;
+
+ -program-prefix | --program-prefix | --program-prefi | --program-pref \
+ | --program-pre | --program-pr | --program-p)
+ ac_prev=program_prefix ;;
+ -program-prefix=* | --program-prefix=* | --program-prefi=* \
+ | --program-pref=* | --program-pre=* | --program-pr=* | --program-p=*)
+ program_prefix=$ac_optarg ;;
+
+ -program-suffix | --program-suffix | --program-suffi | --program-suff \
+ | --program-suf | --program-su | --program-s)
+ ac_prev=program_suffix ;;
+ -program-suffix=* | --program-suffix=* | --program-suffi=* \
+ | --program-suff=* | --program-suf=* | --program-su=* | --program-s=*)
+ program_suffix=$ac_optarg ;;
+
+ -program-transform-name | --program-transform-name \
+ | --program-transform-nam | --program-transform-na \
+ | --program-transform-n | --program-transform- \
+ | --program-transform | --program-transfor \
+ | --program-transfo | --program-transf \
+ | --program-trans | --program-tran \
+ | --progr-tra | --program-tr | --program-t)
+ ac_prev=program_transform_name ;;
+ -program-transform-name=* | --program-transform-name=* \
+ | --program-transform-nam=* | --program-transform-na=* \
+ | --program-transform-n=* | --program-transform-=* \
+ | --program-transform=* | --program-transfor=* \
+ | --program-transfo=* | --program-transf=* \
+ | --program-trans=* | --program-tran=* \
+ | --progr-tra=* | --program-tr=* | --program-t=*)
+ program_transform_name=$ac_optarg ;;
+
+ -pdfdir | --pdfdir | --pdfdi | --pdfd | --pdf | --pd)
+ ac_prev=pdfdir ;;
+ -pdfdir=* | --pdfdir=* | --pdfdi=* | --pdfd=* | --pdf=* | --pd=*)
+ pdfdir=$ac_optarg ;;
+
+ -psdir | --psdir | --psdi | --psd | --ps)
+ ac_prev=psdir ;;
+ -psdir=* | --psdir=* | --psdi=* | --psd=* | --ps=*)
+ psdir=$ac_optarg ;;
+
+ -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+ | -silent | --silent | --silen | --sile | --sil)
+ silent=yes ;;
+
+ -sbindir | --sbindir | --sbindi | --sbind | --sbin | --sbi | --sb)
+ ac_prev=sbindir ;;
+ -sbindir=* | --sbindir=* | --sbindi=* | --sbind=* | --sbin=* \
+ | --sbi=* | --sb=*)
+ sbindir=$ac_optarg ;;
+
+ -sharedstatedir | --sharedstatedir | --sharedstatedi \
+ | --sharedstated | --sharedstate | --sharedstat | --sharedsta \
+ | --sharedst | --shareds | --shared | --share | --shar \
+ | --sha | --sh)
+ ac_prev=sharedstatedir ;;
+ -sharedstatedir=* | --sharedstatedir=* | --sharedstatedi=* \
+ | --sharedstated=* | --sharedstate=* | --sharedstat=* | --sharedsta=* \
+ | --sharedst=* | --shareds=* | --shared=* | --share=* | --shar=* \
+ | --sha=* | --sh=*)
+ sharedstatedir=$ac_optarg ;;
+
+ -site | --site | --sit)
+ ac_prev=site ;;
+ -site=* | --site=* | --sit=*)
+ site=$ac_optarg ;;
+
+ -srcdir | --srcdir | --srcdi | --srcd | --src | --sr)
+ ac_prev=srcdir ;;
+ -srcdir=* | --srcdir=* | --srcdi=* | --srcd=* | --src=* | --sr=*)
+ srcdir=$ac_optarg ;;
+
+ -sysconfdir | --sysconfdir | --sysconfdi | --sysconfd | --sysconf \
+ | --syscon | --sysco | --sysc | --sys | --sy)
+ ac_prev=sysconfdir ;;
+ -sysconfdir=* | --sysconfdir=* | --sysconfdi=* | --sysconfd=* | --sysconf=* \
+ | --syscon=* | --sysco=* | --sysc=* | --sys=* | --sy=*)
+ sysconfdir=$ac_optarg ;;
+
+ -target | --target | --targe | --targ | --tar | --ta | --t)
+ ac_prev=target_alias ;;
+ -target=* | --target=* | --targe=* | --targ=* | --tar=* | --ta=* | --t=*)
+ target_alias=$ac_optarg ;;
+
+ -v | -verbose | --verbose | --verbos | --verbo | --verb)
+ verbose=yes ;;
+
+ -version | --version | --versio | --versi | --vers | -V)
+ ac_init_version=: ;;
+
+ -with-* | --with-*)
+ ac_useropt=`expr "x$ac_option" : 'x-*with-\([^=]*\)'`
+ # Reject names that are not valid shell variable names.
+ expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+ as_fn_error $? "invalid package name: $ac_useropt"
+ ac_useropt_orig=$ac_useropt
+ ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+ case $ac_user_opts in
+ *"
+"with_$ac_useropt"
+"*) ;;
+ *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--with-$ac_useropt_orig"
+ ac_unrecognized_sep=', ';;
+ esac
+ eval with_$ac_useropt=\$ac_optarg ;;
+
+ -without-* | --without-*)
+ ac_useropt=`expr "x$ac_option" : 'x-*without-\(.*\)'`
+ # Reject names that are not valid shell variable names.
+ expr "x$ac_useropt" : ".*[^-+._$as_cr_alnum]" >/dev/null &&
+ as_fn_error $? "invalid package name: $ac_useropt"
+ ac_useropt_orig=$ac_useropt
+ ac_useropt=`$as_echo "$ac_useropt" | sed 's/[-+.]/_/g'`
+ case $ac_user_opts in
+ *"
+"with_$ac_useropt"
+"*) ;;
+ *) ac_unrecognized_opts="$ac_unrecognized_opts$ac_unrecognized_sep--without-$ac_useropt_orig"
+ ac_unrecognized_sep=', ';;
+ esac
+ eval with_$ac_useropt=no ;;
+
+ --x)
+ # Obsolete; use --with-x.
+ with_x=yes ;;
+
+ -x-includes | --x-includes | --x-include | --x-includ | --x-inclu \
+ | --x-incl | --x-inc | --x-in | --x-i)
+ ac_prev=x_includes ;;
+ -x-includes=* | --x-includes=* | --x-include=* | --x-includ=* | --x-inclu=* \
+ | --x-incl=* | --x-inc=* | --x-in=* | --x-i=*)
+ x_includes=$ac_optarg ;;
+
+ -x-libraries | --x-libraries | --x-librarie | --x-librari \
+ | --x-librar | --x-libra | --x-libr | --x-lib | --x-li | --x-l)
+ ac_prev=x_libraries ;;
+ -x-libraries=* | --x-libraries=* | --x-librarie=* | --x-librari=* \
+ | --x-librar=* | --x-libra=* | --x-libr=* | --x-lib=* | --x-li=* | --x-l=*)
+ x_libraries=$ac_optarg ;;
+
+ -*) as_fn_error $? "unrecognized option: \`$ac_option'
+Try \`$0 --help' for more information"
+ ;;
+
+ *=*)
+ ac_envvar=`expr "x$ac_option" : 'x\([^=]*\)='`
+ # Reject names that are not valid shell variable names.
+ case $ac_envvar in #(
+ '' | [0-9]* | *[!_$as_cr_alnum]* )
+ as_fn_error $? "invalid variable name: \`$ac_envvar'" ;;
+ esac
+ eval $ac_envvar=\$ac_optarg
+ export $ac_envvar ;;
+
+ *)
+ # FIXME: should be removed in autoconf 3.0.
+ $as_echo "$as_me: WARNING: you should use --build, --host, --target" >&2
+ expr "x$ac_option" : ".*[^-._$as_cr_alnum]" >/dev/null &&
+ $as_echo "$as_me: WARNING: invalid host type: $ac_option" >&2
+ : "${build_alias=$ac_option} ${host_alias=$ac_option} ${target_alias=$ac_option}"
+ ;;
+
+ esac
+done
+
+if test -n "$ac_prev"; then
+ ac_option=--`echo $ac_prev | sed 's/_/-/g'`
+ as_fn_error $? "missing argument to $ac_option"
+fi
+
+if test -n "$ac_unrecognized_opts"; then
+ case $enable_option_checking in
+ no) ;;
+ fatal) as_fn_error $? "unrecognized options: $ac_unrecognized_opts" ;;
+ *) $as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2 ;;
+ esac
+fi
+
+# Check all directory arguments for consistency.
+for ac_var in exec_prefix prefix bindir sbindir libexecdir datarootdir \
+ datadir sysconfdir sharedstatedir localstatedir includedir \
+ oldincludedir docdir infodir htmldir dvidir pdfdir psdir \
+ libdir localedir mandir
+do
+ eval ac_val=\$$ac_var
+ # Remove trailing slashes.
+ case $ac_val in
+ */ )
+ ac_val=`expr "X$ac_val" : 'X\(.*[^/]\)' \| "X$ac_val" : 'X\(.*\)'`
+ eval $ac_var=\$ac_val;;
+ esac
+ # Be sure to have absolute directory names.
+ case $ac_val in
+ [\\/$]* | ?:[\\/]* ) continue;;
+ NONE | '' ) case $ac_var in *prefix ) continue;; esac;;
+ esac
+ as_fn_error $? "expected an absolute directory name for --$ac_var: $ac_val"
+done
+
+# There might be people who depend on the old broken behavior: `$host'
+# used to hold the argument of --host etc.
+# FIXME: To remove some day.
+build=$build_alias
+host=$host_alias
+target=$target_alias
+
+# FIXME: To remove some day.
+if test "x$host_alias" != x; then
+ if test "x$build_alias" = x; then
+ cross_compiling=maybe
+ elif test "x$build_alias" != "x$host_alias"; then
+ cross_compiling=yes
+ fi
+fi
+
+ac_tool_prefix=
+test -n "$host_alias" && ac_tool_prefix=$host_alias-
+
+test "$silent" = yes && exec 6>/dev/null
+
+
+ac_pwd=`pwd` && test -n "$ac_pwd" &&
+ac_ls_di=`ls -di .` &&
+ac_pwd_ls_di=`cd "$ac_pwd" && ls -di .` ||
+ as_fn_error $? "working directory cannot be determined"
+test "X$ac_ls_di" = "X$ac_pwd_ls_di" ||
+ as_fn_error $? "pwd does not report name of working directory"
+
+
+# Find the source files, if location was not specified.
+if test -z "$srcdir"; then
+ ac_srcdir_defaulted=yes
+ # Try the directory containing this script, then the parent directory.
+ ac_confdir=`$as_dirname -- "$as_myself" ||
+$as_expr X"$as_myself" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$as_myself" : 'X\(//\)[^/]' \| \
+ X"$as_myself" : 'X\(//\)$' \| \
+ X"$as_myself" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_myself" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+ s//\1/
+ q
+ }
+ /^X\(\/\/\)[^/].*/{
+ s//\1/
+ q
+ }
+ /^X\(\/\/\)$/{
+ s//\1/
+ q
+ }
+ /^X\(\/\).*/{
+ s//\1/
+ q
+ }
+ s/.*/./; q'`
+ srcdir=$ac_confdir
+ if test ! -r "$srcdir/$ac_unique_file"; then
+ srcdir=..
+ fi
+else
+ ac_srcdir_defaulted=no
+fi
+if test ! -r "$srcdir/$ac_unique_file"; then
+ test "$ac_srcdir_defaulted" = yes && srcdir="$ac_confdir or .."
+ as_fn_error $? "cannot find sources ($ac_unique_file) in $srcdir"
+fi
+ac_msg="sources are in $srcdir, but \`cd $srcdir' does not work"
+ac_abs_confdir=`(
+ cd "$srcdir" && test -r "./$ac_unique_file" || as_fn_error $? "$ac_msg"
+ pwd)`
+# When building in place, set srcdir=.
+if test "$ac_abs_confdir" = "$ac_pwd"; then
+ srcdir=.
+fi
+# Remove unnecessary trailing slashes from srcdir.
+# Double slashes in file names in object file debugging info
+# mess up M-x gdb in Emacs.
+case $srcdir in
+*/) srcdir=`expr "X$srcdir" : 'X\(.*[^/]\)' \| "X$srcdir" : 'X\(.*\)'`;;
+esac
+for ac_var in $ac_precious_vars; do
+ eval ac_env_${ac_var}_set=\${${ac_var}+set}
+ eval ac_env_${ac_var}_value=\$${ac_var}
+ eval ac_cv_env_${ac_var}_set=\${${ac_var}+set}
+ eval ac_cv_env_${ac_var}_value=\$${ac_var}
+done
+
+#
+# Report the --help message.
+#
+if test "$ac_init_help" = "long"; then
+ # Omit some internal or obsolete options to make the list less imposing.
+ # This message is too long to be a string in the A/UX 3.1 sh.
+ cat <<_ACEOF
+\`configure' configures nbdkit 1.12.4 to adapt to many kinds of systems.
+
+Usage: $0 [OPTION]... [VAR=VALUE]...
+
+To assign environment variables (e.g., CC, CFLAGS...), specify them as
+VAR=VALUE. See below for descriptions of some of the useful variables.
+
+Defaults for the options are specified in brackets.
+
+Configuration:
+ -h, --help display this help and exit
+ --help=short display options specific to this package
+ --help=recursive display the short help of all the included packages
+ -V, --version display version information and exit
+ -q, --quiet, --silent do not print \`checking ...' messages
+ --cache-file=FILE cache test results in FILE [disabled]
+ -C, --config-cache alias for \`--cache-file=config.cache'
+ -n, --no-create do not create output files
+ --srcdir=DIR find the sources in DIR [configure dir or \`..']
+
+Installation directories:
+ --prefix=PREFIX install architecture-independent files in PREFIX
+ [$ac_default_prefix]
+ --exec-prefix=EPREFIX install architecture-dependent files in EPREFIX
+ [PREFIX]
+
+By default, \`make install' will install all the files in
+\`$ac_default_prefix/bin', \`$ac_default_prefix/lib' etc. You can specify
+an installation prefix other than \`$ac_default_prefix' using \`--prefix',
+for instance \`--prefix=\$HOME'.
+
+For better control, use the options below.
+
+Fine tuning of the installation directories:
+ --bindir=DIR user executables [EPREFIX/bin]
+ --sbindir=DIR system admin executables [EPREFIX/sbin]
+ --libexecdir=DIR program executables [EPREFIX/libexec]
+ --sysconfdir=DIR read-only single-machine data [PREFIX/etc]
+ --sharedstatedir=DIR modifiable architecture-independent data [PREFIX/com]
+ --localstatedir=DIR modifiable single-machine data [PREFIX/var]
+ --libdir=DIR object code libraries [EPREFIX/lib]
+ --includedir=DIR C header files [PREFIX/include]
+ --oldincludedir=DIR C header files for non-gcc [/usr/include]
+ --datarootdir=DIR read-only arch.-independent data root [PREFIX/share]
+ --datadir=DIR read-only architecture-independent data [DATAROOTDIR]
+ --infodir=DIR info documentation [DATAROOTDIR/info]
+ --localedir=DIR locale-dependent data [DATAROOTDIR/locale]
+ --mandir=DIR man documentation [DATAROOTDIR/man]
+ --docdir=DIR documentation root [DATAROOTDIR/doc/nbdkit]
+ --htmldir=DIR html documentation [DOCDIR]
+ --dvidir=DIR dvi documentation [DOCDIR]
+ --pdfdir=DIR pdf documentation [DOCDIR]
+ --psdir=DIR ps documentation [DOCDIR]
+_ACEOF
+
+ cat <<\_ACEOF
+
+Program names:
+ --program-prefix=PREFIX prepend PREFIX to installed program names
+ --program-suffix=SUFFIX append SUFFIX to installed program names
+ --program-transform-name=PROGRAM run sed PROGRAM on installed program names
+
+System types:
+ --build=BUILD configure for building on BUILD [guessed]
+ --host=HOST cross-compile to build programs to run on HOST [BUILD]
+_ACEOF
+fi
+
+if test -n "$ac_init_help"; then
+ case $ac_init_help in
+ short | recursive ) echo "Configuration of nbdkit 1.12.4:";;
+ esac
+ cat <<\_ACEOF
+
+Optional Features:
+ --disable-option-checking ignore unrecognized --enable/--with options
+ --disable-FEATURE do not include FEATURE (same as --enable-FEATURE=no)
+ --enable-FEATURE[=ARG] include FEATURE [ARG=yes]
+ --disable-largefile omit support for large files
+ --enable-dependency-tracking
+ do not reject slow dependency extractors
+ --disable-dependency-tracking
+ speeds up one-time build
+ --enable-silent-rules less verbose build output (undo: "make V=1")
+ --disable-silent-rules verbose build output (undo: "make V=0")
+ --enable-shared[=PKGS] build shared libraries [default=yes]
+ --enable-static[=PKGS] build static libraries [default=yes]
+ --enable-fast-install[=PKGS]
+ optimize for fast installation [default=yes]
+ --disable-libtool-lock avoid locking (might break parallel builds)
+ --enable-gcc-warnings turn on lots of GCC warnings (for developers)
+ --enable-valgrind enable Valgrind extensions (for developers)
+ --disable-plugins disable all bundled plugins and filters
+ --disable-perl disable Perl embed plugin
+ --disable-python disable Python embed plugin
+ --disable-ocaml disable OCaml embed plugin
+ --disable-rust disable Rust plugin
+ --disable-ruby disable Ruby plugin
+ --disable-tcl disable Tcl plugin
+ --disable-lua disable Lua plugin
+ --disable-vddk disable VMware VDDK plugin
+
+Optional Packages:
+ --with-PACKAGE[=ARG] use PACKAGE [ARG=yes]
+ --without-PACKAGE do not use PACKAGE (same as --with-PACKAGE=no)
+ --with-pic[=PKGS] try to use only PIC/non-PIC objects [default=use
+ both]
+ --with-aix-soname=aix|svr4|both
+ shared library versioning (aka "SONAME") variant to
+ provide on AIX, [default=aix].
+ --with-gnu-ld assume the C compiler uses GNU ld [default=no]
+ --with-sysroot[=DIR] Search for dependent libraries within DIR (or the
+ compiler's sysroot if not specified).
+ --without-iconv don't try to link against iconv [default=check]
+ --with-tls-priority default TLS session priority string [default=NORMAL]
+ --without-curl disable curl plugin [default=check]
+ --without-ssh disable ssh plugin [default=check]
+ --without-iso disable iso plugin [default=check]
+ --without-libvirt disable libvirt plugin [default=check]
+ --without-zlib disable gzip plugin [default=check]
+ --without-liblzma disable xz filter [default=check]
+ --without-libguestfs disable guestfs plugin and tests [default=check]
+ --without-ext2 disable ext2 plugin [default=check]
+
+Some influential environment variables:
+ CC C compiler command
+ CFLAGS C compiler flags
+ LDFLAGS linker flags, e.g. -L<lib dir> if you have libraries in a
+ nonstandard directory <lib dir>
+ LIBS libraries to pass to the linker, e.g. -l<library>
+ CPPFLAGS (Objective) C/C++ preprocessor flags, e.g. -I<include dir> if
+ you have headers in a nonstandard directory <include dir>
+ CPP C preprocessor
+ LT_SYS_LIBRARY_PATH
+ User-defined run-time library search path.
+ CXX C++ compiler command
+ CXXFLAGS C++ compiler flags
+ CXXCPP C++ preprocessor
+ PKG_CONFIG path to pkg-config utility
+ PKG_CONFIG_PATH
+ directories to add to pkg-config's search path
+ PKG_CONFIG_LIBDIR
+ path overriding pkg-config's built-in search path
+ LIBSELINUX_CFLAGS
+ C compiler flags for LIBSELINUX, overriding pkg-config
+ LIBSELINUX_LIBS
+ linker flags for LIBSELINUX, overriding pkg-config
+ GNUTLS_CFLAGS
+ C compiler flags for GNUTLS, overriding pkg-config
+ GNUTLS_LIBS linker flags for GNUTLS, overriding pkg-config
+ VALGRIND_CFLAGS
+ C compiler flags for VALGRIND, overriding pkg-config
+ VALGRIND_LIBS
+ linker flags for VALGRIND, overriding pkg-config
+ BASH_COMPLETION_CFLAGS
+ C compiler flags for BASH_COMPLETION, overriding pkg-config
+ BASH_COMPLETION_LIBS
+ linker flags for BASH_COMPLETION, overriding pkg-config
+ bashcompdir value of completionsdir for bash-completion, overriding
+ pkg-config
+ PYTHON_CFLAGS
+ C compiler flags for PYTHON, overriding pkg-config
+ PYTHON_LIBS linker flags for PYTHON, overriding pkg-config
+ RUBY_CFLAGS C compiler flags for RUBY, overriding pkg-config
+ RUBY_LIBS linker flags for RUBY, overriding pkg-config
+ TCL_CFLAGS C compiler flags for TCL, overriding pkg-config
+ TCL_LIBS linker flags for TCL, overriding pkg-config
+ LUA_CFLAGS C compiler flags for LUA, overriding pkg-config
+ LUA_LIBS linker flags for LUA, overriding pkg-config
+ CURL_CFLAGS C compiler flags for CURL, overriding pkg-config
+ CURL_LIBS linker flags for CURL, overriding pkg-config
+ SSH_CFLAGS C compiler flags for SSH, overriding pkg-config
+ SSH_LIBS linker flags for SSH, overriding pkg-config
+ LIBVIRT_CFLAGS
+ C compiler flags for LIBVIRT, overriding pkg-config
+ LIBVIRT_LIBS
+ linker flags for LIBVIRT, overriding pkg-config
+ ZLIB_CFLAGS C compiler flags for ZLIB, overriding pkg-config
+ ZLIB_LIBS linker flags for ZLIB, overriding pkg-config
+ LIBLZMA_CFLAGS
+ C compiler flags for LIBLZMA, overriding pkg-config
+ LIBLZMA_LIBS
+ linker flags for LIBLZMA, overriding pkg-config
+ LIBGUESTFS_CFLAGS
+ C compiler flags for LIBGUESTFS, overriding pkg-config
+ LIBGUESTFS_LIBS
+ linker flags for LIBGUESTFS, overriding pkg-config
+ EXT2FS_CFLAGS
+ C compiler flags for EXT2FS, overriding pkg-config
+ EXT2FS_LIBS linker flags for EXT2FS, overriding pkg-config
+ COM_ERR_CFLAGS
+ C compiler flags for COM_ERR, overriding pkg-config
+ COM_ERR_LIBS
+ linker flags for COM_ERR, overriding pkg-config
+
+Use these variables to override the choices made by `configure' or to help
+it to find libraries and programs with nonstandard names/locations.
+
+Report bugs to the package provider.
+_ACEOF
+ac_status=$?
+fi
+
+if test "$ac_init_help" = "recursive"; then
+ # If there are subdirs, report their specific --help.
+ for ac_dir in : $ac_subdirs_all; do test "x$ac_dir" = x: && continue
+ test -d "$ac_dir" ||
+ { cd "$srcdir" && ac_pwd=`pwd` && srcdir=. && test -d "$ac_dir"; } ||
+ continue
+ ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+ ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+ # A ".." for each directory in $ac_dir_suffix.
+ ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+ case $ac_top_builddir_sub in
+ "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+ *) ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+ esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+ .) # We are building in place.
+ ac_srcdir=.
+ ac_top_srcdir=$ac_top_builddir_sub
+ ac_abs_top_srcdir=$ac_pwd ;;
+ [\\/]* | ?:[\\/]* ) # Absolute name.
+ ac_srcdir=$srcdir$ac_dir_suffix;
+ ac_top_srcdir=$srcdir
+ ac_abs_top_srcdir=$srcdir ;;
+ *) # Relative name.
+ ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+ ac_top_srcdir=$ac_top_build_prefix$srcdir
+ ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+ cd "$ac_dir" || { ac_status=$?; continue; }
+ # Check for guested configure.
+ if test -f "$ac_srcdir/configure.gnu"; then
+ echo &&
+ $SHELL "$ac_srcdir/configure.gnu" --help=recursive
+ elif test -f "$ac_srcdir/configure"; then
+ echo &&
+ $SHELL "$ac_srcdir/configure" --help=recursive
+ else
+ $as_echo "$as_me: WARNING: no configuration information is in $ac_dir" >&2
+ fi || ac_status=$?
+ cd "$ac_pwd" || { ac_status=$?; break; }
+ done
+fi
+
+test -n "$ac_init_help" && exit $ac_status
+if $ac_init_version; then
+ cat <<\_ACEOF
+nbdkit configure 1.12.4
+generated by GNU Autoconf 2.69
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This configure script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it.
+_ACEOF
+ exit
+fi
+
+## ------------------------ ##
+## Autoconf initialization. ##
+## ------------------------ ##
+
+# ac_fn_c_try_compile LINENO
+# --------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_compile ()
+{
+ as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+ rm -f conftest.$ac_objext
+ if { { ac_try="$ac_compile"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_compile") 2>conftest.err
+ ac_status=$?
+ if test -s conftest.err; then
+ grep -v '^ *+' conftest.err >conftest.er1
+ cat conftest.er1 >&5
+ mv -f conftest.er1 conftest.err
+ fi
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; } && {
+ test -z "$ac_c_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest.$ac_objext; then :
+ ac_retval=0
+else
+ $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_retval=1
+fi
+ eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+ as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_compile
+
+# ac_fn_c_try_cpp LINENO
+# ----------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_cpp ()
+{
+ as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+ if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+ ac_status=$?
+ if test -s conftest.err; then
+ grep -v '^ *+' conftest.err >conftest.er1
+ cat conftest.er1 >&5
+ mv -f conftest.er1 conftest.err
+ fi
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; } > conftest.i && {
+ test -z "$ac_c_preproc_warn_flag$ac_c_werror_flag" ||
+ test ! -s conftest.err
+ }; then :
+ ac_retval=0
+else
+ $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_retval=1
+fi
+ eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+ as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_cpp
+
+# ac_fn_c_check_header_mongrel LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists, giving a warning if it cannot be compiled using
+# the include files in INCLUDES and setting the cache variable VAR
+# accordingly.
+ac_fn_c_check_header_mongrel ()
+{
+ as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+ if eval \${$3+:} false; then :
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+ $as_echo_n "(cached) " >&6
+fi
+eval ac_res=\$$3
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+else
+ # Is the header compilable?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 usability" >&5
+$as_echo_n "checking $2 usability... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ ac_header_compiler=yes
+else
+ ac_header_compiler=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_compiler" >&5
+$as_echo "$ac_header_compiler" >&6; }
+
+# Is the header present?
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking $2 presence" >&5
+$as_echo_n "checking $2 presence... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <$2>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+ ac_header_preproc=yes
+else
+ ac_header_preproc=no
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_header_preproc" >&5
+$as_echo "$ac_header_preproc" >&6; }
+
+# So? What about this header?
+case $ac_header_compiler:$ac_header_preproc:$ac_c_preproc_warn_flag in #((
+ yes:no: )
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&5
+$as_echo "$as_me: WARNING: $2: accepted by the compiler, rejected by the preprocessor!" >&2;}
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+ ;;
+ no:yes:* )
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: present but cannot be compiled" >&5
+$as_echo "$as_me: WARNING: $2: present but cannot be compiled" >&2;}
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: check for missing prerequisite headers?" >&5
+$as_echo "$as_me: WARNING: $2: check for missing prerequisite headers?" >&2;}
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: see the Autoconf documentation" >&5
+$as_echo "$as_me: WARNING: $2: see the Autoconf documentation" >&2;}
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: section \"Present But Cannot Be Compiled\"" >&5
+$as_echo "$as_me: WARNING: $2: section \"Present But Cannot Be Compiled\"" >&2;}
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $2: proceeding with the compiler's result" >&5
+$as_echo "$as_me: WARNING: $2: proceeding with the compiler's result" >&2;}
+ ;;
+esac
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ eval "$3=\$ac_header_compiler"
+fi
+eval ac_res=\$$3
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+fi
+ eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_mongrel
+
+# ac_fn_c_try_run LINENO
+# ----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded. Assumes
+# that executables *can* be run.
+ac_fn_c_try_run ()
+{
+ as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+ if { { ac_try="$ac_link"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_link") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; } && { ac_try='./conftest$ac_exeext'
+ { { case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_try") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }; then :
+ ac_retval=0
+else
+ $as_echo "$as_me: program exited with status $ac_status" >&5
+ $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_retval=$ac_status
+fi
+ rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+ eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+ as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_run
+
+# ac_fn_c_check_header_compile LINENO HEADER VAR INCLUDES
+# -------------------------------------------------------
+# Tests whether HEADER exists and can be compiled using the include files in
+# INCLUDES, setting the cache variable VAR accordingly.
+ac_fn_c_check_header_compile ()
+{
+ as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+$4
+#include <$2>
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ eval "$3=yes"
+else
+ eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+ eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_header_compile
+
+# ac_fn_c_try_link LINENO
+# -----------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_c_try_link ()
+{
+ as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+ rm -f conftest.$ac_objext conftest$ac_exeext
+ if { { ac_try="$ac_link"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_link") 2>conftest.err
+ ac_status=$?
+ if test -s conftest.err; then
+ grep -v '^ *+' conftest.err >conftest.er1
+ cat conftest.er1 >&5
+ mv -f conftest.er1 conftest.err
+ fi
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; } && {
+ test -z "$ac_c_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest$ac_exeext && {
+ test "$cross_compiling" = yes ||
+ test -x conftest$ac_exeext
+ }; then :
+ ac_retval=0
+else
+ $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_retval=1
+fi
+ # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+ # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+ # interfere with the next link command; also delete a directory that is
+ # left behind by Apple's compiler. We do this before executing the actions.
+ rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+ eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+ as_fn_set_status $ac_retval
+
+} # ac_fn_c_try_link
+
+# ac_fn_c_check_func LINENO FUNC VAR
+# ----------------------------------
+# Tests whether FUNC exists, setting the cache variable VAR accordingly
+ac_fn_c_check_func ()
+{
+ as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $2" >&5
+$as_echo_n "checking for $2... " >&6; }
+if eval \${$3+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+/* Define $2 to an innocuous variant, in case <limits.h> declares $2.
+ For example, HP-UX 11i <limits.h> declares gettimeofday. */
+#define $2 innocuous_$2
+
+/* System header to define __stub macros and hopefully few prototypes,
+ which can conflict with char $2 (); below.
+ Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ <limits.h> exists even on freestanding compilers. */
+
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+
+#undef $2
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char $2 ();
+/* The GNU C library defines this for functions which it implements
+ to always fail with ENOSYS. Some functions are actually named
+ something starting with __ and the normal name is an alias. */
+#if defined __stub_$2 || defined __stub___$2
+choke me
+#endif
+
+int
+main ()
+{
+return $2 ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ eval "$3=yes"
+else
+ eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+ eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_func
+
+# ac_fn_cxx_try_compile LINENO
+# ----------------------------
+# Try to compile conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_compile ()
+{
+ as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+ rm -f conftest.$ac_objext
+ if { { ac_try="$ac_compile"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_compile") 2>conftest.err
+ ac_status=$?
+ if test -s conftest.err; then
+ grep -v '^ *+' conftest.err >conftest.er1
+ cat conftest.er1 >&5
+ mv -f conftest.er1 conftest.err
+ fi
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; } && {
+ test -z "$ac_cxx_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest.$ac_objext; then :
+ ac_retval=0
+else
+ $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_retval=1
+fi
+ eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+ as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_compile
+
+# ac_fn_cxx_try_cpp LINENO
+# ------------------------
+# Try to preprocess conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_cpp ()
+{
+ as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+ if { { ac_try="$ac_cpp conftest.$ac_ext"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_cpp conftest.$ac_ext") 2>conftest.err
+ ac_status=$?
+ if test -s conftest.err; then
+ grep -v '^ *+' conftest.err >conftest.er1
+ cat conftest.er1 >&5
+ mv -f conftest.er1 conftest.err
+ fi
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; } > conftest.i && {
+ test -z "$ac_cxx_preproc_warn_flag$ac_cxx_werror_flag" ||
+ test ! -s conftest.err
+ }; then :
+ ac_retval=0
+else
+ $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_retval=1
+fi
+ eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+ as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_cpp
+
+# ac_fn_cxx_try_link LINENO
+# -------------------------
+# Try to link conftest.$ac_ext, and return whether this succeeded.
+ac_fn_cxx_try_link ()
+{
+ as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+ rm -f conftest.$ac_objext conftest$ac_exeext
+ if { { ac_try="$ac_link"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_link") 2>conftest.err
+ ac_status=$?
+ if test -s conftest.err; then
+ grep -v '^ *+' conftest.err >conftest.er1
+ cat conftest.er1 >&5
+ mv -f conftest.er1 conftest.err
+ fi
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; } && {
+ test -z "$ac_cxx_werror_flag" ||
+ test ! -s conftest.err
+ } && test -s conftest$ac_exeext && {
+ test "$cross_compiling" = yes ||
+ test -x conftest$ac_exeext
+ }; then :
+ ac_retval=0
+else
+ $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+ ac_retval=1
+fi
+ # Delete the IPA/IPO (Inter Procedural Analysis/Optimization) information
+ # created by the PGI compiler (conftest_ipa8_conftest.oo), as it would
+ # interfere with the next link command; also delete a directory that is
+ # left behind by Apple's compiler. We do this before executing the actions.
+ rm -rf conftest.dSYM conftest_ipa8_conftest.oo
+ eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+ as_fn_set_status $ac_retval
+
+} # ac_fn_cxx_try_link
+
+# ac_fn_c_check_decl LINENO SYMBOL VAR INCLUDES
+# ---------------------------------------------
+# Tests whether SYMBOL is declared in INCLUDES, setting cache variable VAR
+# accordingly.
+ac_fn_c_check_decl ()
+{
+ as_lineno=${as_lineno-"$1"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+ as_decl_name=`echo $2|sed 's/ *(.*//'`
+ as_decl_use=`echo $2|sed -e 's/(/((/' -e 's/)/) 0&/' -e 's/,/) 0& (/g'`
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $as_decl_name is declared" >&5
+$as_echo_n "checking whether $as_decl_name is declared... " >&6; }
+if eval \${$3+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+$4
+int
+main ()
+{
+#ifndef $as_decl_name
+#ifdef __cplusplus
+ (void) $as_decl_use;
+#else
+ (void) $as_decl_name;
+#endif
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ eval "$3=yes"
+else
+ eval "$3=no"
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+eval ac_res=\$$3
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_res" >&5
+$as_echo "$ac_res" >&6; }
+ eval $as_lineno_stack; ${as_lineno_stack:+:} unset as_lineno
+
+} # ac_fn_c_check_decl
+cat >config.log <<_ACEOF
+This file contains any messages produced by compilers while
+running configure, to aid debugging if configure makes a mistake.
+
+It was created by nbdkit $as_me 1.12.4, which was
+generated by GNU Autoconf 2.69. Invocation command line was
+
+ $ $0 $@
+
+_ACEOF
+exec 5>>config.log
+{
+cat <<_ASUNAME
+## --------- ##
+## Platform. ##
+## --------- ##
+
+hostname = `(hostname || uname -n) 2>/dev/null | sed 1q`
+uname -m = `(uname -m) 2>/dev/null || echo unknown`
+uname -r = `(uname -r) 2>/dev/null || echo unknown`
+uname -s = `(uname -s) 2>/dev/null || echo unknown`
+uname -v = `(uname -v) 2>/dev/null || echo unknown`
+
+/usr/bin/uname -p = `(/usr/bin/uname -p) 2>/dev/null || echo unknown`
+/bin/uname -X = `(/bin/uname -X) 2>/dev/null || echo unknown`
+
+/bin/arch = `(/bin/arch) 2>/dev/null || echo unknown`
+/usr/bin/arch -k = `(/usr/bin/arch -k) 2>/dev/null || echo unknown`
+/usr/convex/getsysinfo = `(/usr/convex/getsysinfo) 2>/dev/null || echo unknown`
+/usr/bin/hostinfo = `(/usr/bin/hostinfo) 2>/dev/null || echo unknown`
+/bin/machine = `(/bin/machine) 2>/dev/null || echo unknown`
+/usr/bin/oslevel = `(/usr/bin/oslevel) 2>/dev/null || echo unknown`
+/bin/universe = `(/bin/universe) 2>/dev/null || echo unknown`
+
+_ASUNAME
+
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ $as_echo "PATH: $as_dir"
+ done
+IFS=$as_save_IFS
+
+} >&5
+
+cat >&5 <<_ACEOF
+
+
+## ----------- ##
+## Core tests. ##
+## ----------- ##
+
+_ACEOF
+
+
+# Keep a trace of the command line.
+# Strip out --no-create and --no-recursion so they do not pile up.
+# Strip out --silent because we don't want to record it for future runs.
+# Also quote any args containing shell meta-characters.
+# Make two passes to allow for proper duplicate-argument suppression.
+ac_configure_args=
+ac_configure_args0=
+ac_configure_args1=
+ac_must_keep_next=false
+for ac_pass in 1 2
+do
+ for ac_arg
+ do
+ case $ac_arg in
+ -no-create | --no-c* | -n | -no-recursion | --no-r*) continue ;;
+ -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+ | -silent | --silent | --silen | --sile | --sil)
+ continue ;;
+ *\'*)
+ ac_arg=`$as_echo "$ac_arg" | sed "s/'/'\\\\\\\\''/g"` ;;
+ esac
+ case $ac_pass in
+ 1) as_fn_append ac_configure_args0 " '$ac_arg'" ;;
+ 2)
+ as_fn_append ac_configure_args1 " '$ac_arg'"
+ if test $ac_must_keep_next = true; then
+ ac_must_keep_next=false # Got value, back to normal.
+ else
+ case $ac_arg in
+ *=* | --config-cache | -C | -disable-* | --disable-* \
+ | -enable-* | --enable-* | -gas | --g* | -nfp | --nf* \
+ | -q | -quiet | --q* | -silent | --sil* | -v | -verb* \
+ | -with-* | --with-* | -without-* | --without-* | --x)
+ case "$ac_configure_args0 " in
+ "$ac_configure_args1"*" '$ac_arg' "* ) continue ;;
+ esac
+ ;;
+ -* ) ac_must_keep_next=true ;;
+ esac
+ fi
+ as_fn_append ac_configure_args " '$ac_arg'"
+ ;;
+ esac
+ done
+done
+{ ac_configure_args0=; unset ac_configure_args0;}
+{ ac_configure_args1=; unset ac_configure_args1;}
+
+# When interrupted or exit'd, cleanup temporary files, and complete
+# config.log. We remove comments because anyway the quotes in there
+# would cause problems or look ugly.
+# WARNING: Use '\'' to represent an apostrophe within the trap.
+# WARNING: Do not start the trap code with a newline, due to a FreeBSD 4.0 bug.
+trap 'exit_status=$?
+ # Save into config.log some information that might help in debugging.
+ {
+ echo
+
+ $as_echo "## ---------------- ##
+## Cache variables. ##
+## ---------------- ##"
+ echo
+ # The following way of writing the cache mishandles newlines in values,
+(
+ for ac_var in `(set) 2>&1 | sed -n '\''s/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'\''`; do
+ eval ac_val=\$$ac_var
+ case $ac_val in #(
+ *${as_nl}*)
+ case $ac_var in #(
+ *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+ esac
+ case $ac_var in #(
+ _ | IFS | as_nl) ;; #(
+ BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+ *) { eval $ac_var=; unset $ac_var;} ;;
+ esac ;;
+ esac
+ done
+ (set) 2>&1 |
+ case $as_nl`(ac_space='\'' '\''; set) 2>&1` in #(
+ *${as_nl}ac_space=\ *)
+ sed -n \
+ "s/'\''/'\''\\\\'\'''\''/g;
+ s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\''\\2'\''/p"
+ ;; #(
+ *)
+ sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+ ;;
+ esac |
+ sort
+)
+ echo
+
+ $as_echo "## ----------------- ##
+## Output variables. ##
+## ----------------- ##"
+ echo
+ for ac_var in $ac_subst_vars
+ do
+ eval ac_val=\$$ac_var
+ case $ac_val in
+ *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+ esac
+ $as_echo "$ac_var='\''$ac_val'\''"
+ done | sort
+ echo
+
+ if test -n "$ac_subst_files"; then
+ $as_echo "## ------------------- ##
+## File substitutions. ##
+## ------------------- ##"
+ echo
+ for ac_var in $ac_subst_files
+ do
+ eval ac_val=\$$ac_var
+ case $ac_val in
+ *\'\''*) ac_val=`$as_echo "$ac_val" | sed "s/'\''/'\''\\\\\\\\'\'''\''/g"`;;
+ esac
+ $as_echo "$ac_var='\''$ac_val'\''"
+ done | sort
+ echo
+ fi
+
+ if test -s confdefs.h; then
+ $as_echo "## ----------- ##
+## confdefs.h. ##
+## ----------- ##"
+ echo
+ cat confdefs.h
+ echo
+ fi
+ test "$ac_signal" != 0 &&
+ $as_echo "$as_me: caught signal $ac_signal"
+ $as_echo "$as_me: exit $exit_status"
+ } >&5
+ rm -f core *.core core.conftest.* &&
+ rm -f -r conftest* confdefs* conf$$* $ac_clean_files &&
+ exit $exit_status
+' 0
+for ac_signal in 1 2 13 15; do
+ trap 'ac_signal='$ac_signal'; as_fn_exit 1' $ac_signal
+done
+ac_signal=0
+
+# confdefs.h avoids OS command line length limits that DEFS can exceed.
+rm -f -r conftest* confdefs.h
+
+$as_echo "/* confdefs.h */" > confdefs.h
+
+# Predefined preprocessor variables.
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_NAME "$PACKAGE_NAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_TARNAME "$PACKAGE_TARNAME"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_VERSION "$PACKAGE_VERSION"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_STRING "$PACKAGE_STRING"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_BUGREPORT "$PACKAGE_BUGREPORT"
+_ACEOF
+
+cat >>confdefs.h <<_ACEOF
+#define PACKAGE_URL "$PACKAGE_URL"
+_ACEOF
+
+
+# Let the site file select an alternate cache file if it wants to.
+# Prefer an explicitly selected file to automatically selected ones.
+ac_site_file1=NONE
+ac_site_file2=NONE
+if test -n "$CONFIG_SITE"; then
+ # We do not want a PATH search for config.site.
+ case $CONFIG_SITE in #((
+ -*) ac_site_file1=./$CONFIG_SITE;;
+ */*) ac_site_file1=$CONFIG_SITE;;
+ *) ac_site_file1=./$CONFIG_SITE;;
+ esac
+elif test "x$prefix" != xNONE; then
+ ac_site_file1=$prefix/share/config.site
+ ac_site_file2=$prefix/etc/config.site
+else
+ ac_site_file1=$ac_default_prefix/share/config.site
+ ac_site_file2=$ac_default_prefix/etc/config.site
+fi
+for ac_site_file in "$ac_site_file1" "$ac_site_file2"
+do
+ test "x$ac_site_file" = xNONE && continue
+ if test /dev/null != "$ac_site_file" && test -r "$ac_site_file"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: loading site script $ac_site_file" >&5
+$as_echo "$as_me: loading site script $ac_site_file" >&6;}
+ sed 's/^/| /' "$ac_site_file" >&5
+ . "$ac_site_file" \
+ || { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "failed to load site script $ac_site_file
+See \`config.log' for more details" "$LINENO" 5; }
+ fi
+done
+
+if test -r "$cache_file"; then
+ # Some versions of bash will fail to source /dev/null (special files
+ # actually), so we avoid doing that. DJGPP emulates it as a regular file.
+ if test /dev/null != "$cache_file" && test -f "$cache_file"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: loading cache $cache_file" >&5
+$as_echo "$as_me: loading cache $cache_file" >&6;}
+ case $cache_file in
+ [\\/]* | ?:[\\/]* ) . "$cache_file";;
+ *) . "./$cache_file";;
+ esac
+ fi
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: creating cache $cache_file" >&5
+$as_echo "$as_me: creating cache $cache_file" >&6;}
+ >$cache_file
+fi
+
+# Check that the precious variables saved in the cache have kept the same
+# value.
+ac_cache_corrupted=false
+for ac_var in $ac_precious_vars; do
+ eval ac_old_set=\$ac_cv_env_${ac_var}_set
+ eval ac_new_set=\$ac_env_${ac_var}_set
+ eval ac_old_val=\$ac_cv_env_${ac_var}_value
+ eval ac_new_val=\$ac_env_${ac_var}_value
+ case $ac_old_set,$ac_new_set in
+ set,)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was set to \`$ac_old_val' in the previous run" >&2;}
+ ac_cache_corrupted=: ;;
+ ,set)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' was not set in the previous run" >&5
+$as_echo "$as_me: error: \`$ac_var' was not set in the previous run" >&2;}
+ ac_cache_corrupted=: ;;
+ ,);;
+ *)
+ if test "x$ac_old_val" != "x$ac_new_val"; then
+ # differences in whitespace do not lead to failure.
+ ac_old_val_w=`echo x $ac_old_val`
+ ac_new_val_w=`echo x $ac_new_val`
+ if test "$ac_old_val_w" != "$ac_new_val_w"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: error: \`$ac_var' has changed since the previous run:" >&5
+$as_echo "$as_me: error: \`$ac_var' has changed since the previous run:" >&2;}
+ ac_cache_corrupted=:
+ else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&5
+$as_echo "$as_me: warning: ignoring whitespace changes in \`$ac_var' since the previous run:" >&2;}
+ eval $ac_var=\$ac_old_val
+ fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: former value: \`$ac_old_val'" >&5
+$as_echo "$as_me: former value: \`$ac_old_val'" >&2;}
+ { $as_echo "$as_me:${as_lineno-$LINENO}: current value: \`$ac_new_val'" >&5
+$as_echo "$as_me: current value: \`$ac_new_val'" >&2;}
+ fi;;
+ esac
+ # Pass precious variables to config.status.
+ if test "$ac_new_set" = set; then
+ case $ac_new_val in
+ *\'*) ac_arg=$ac_var=`$as_echo "$ac_new_val" | sed "s/'/'\\\\\\\\''/g"` ;;
+ *) ac_arg=$ac_var=$ac_new_val ;;
+ esac
+ case " $ac_configure_args " in
+ *" '$ac_arg' "*) ;; # Avoid dups. Use of quotes ensures accuracy.
+ *) as_fn_append ac_configure_args " '$ac_arg'" ;;
+ esac
+ fi
+done
+if $ac_cache_corrupted; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+ { $as_echo "$as_me:${as_lineno-$LINENO}: error: changes in the environment can compromise the build" >&5
+$as_echo "$as_me: error: changes in the environment can compromise the build" >&2;}
+ as_fn_error $? "run \`make distclean' and/or \`rm $cache_file' and start over" "$LINENO" 5
+fi
+## -------------------- ##
+## Main body of script. ##
+## -------------------- ##
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+
+ac_aux_dir=
+for ac_dir in "$srcdir" "$srcdir/.." "$srcdir/../.."; do
+ if test -f "$ac_dir/install-sh"; then
+ ac_aux_dir=$ac_dir
+ ac_install_sh="$ac_aux_dir/install-sh -c"
+ break
+ elif test -f "$ac_dir/install.sh"; then
+ ac_aux_dir=$ac_dir
+ ac_install_sh="$ac_aux_dir/install.sh -c"
+ break
+ elif test -f "$ac_dir/shtool"; then
+ ac_aux_dir=$ac_dir
+ ac_install_sh="$ac_aux_dir/shtool install -c"
+ break
+ fi
+done
+if test -z "$ac_aux_dir"; then
+ as_fn_error $? "cannot find install-sh, install.sh, or shtool in \"$srcdir\" \"$srcdir/..\" \"$srcdir/../..\"" "$LINENO" 5
+fi
+
+# These three variables are undocumented and unsupported,
+# and are intended to be withdrawn in a future Autoconf release.
+# They can cause serious problems if a builder's source tree is in a directory
+# whose full name contains unusual characters.
+ac_config_guess="$SHELL $ac_aux_dir/config.guess" # Please don't use this var.
+ac_config_sub="$SHELL $ac_aux_dir/config.sub" # Please don't use this var.
+ac_configure="$SHELL $ac_aux_dir/configure" # Please don't use this var.
+
+
+# Expand $ac_aux_dir to an absolute path.
+am_aux_dir=`cd "$ac_aux_dir" && pwd`
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}gcc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="${ac_tool_prefix}gcc"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_CC"; then
+ ac_ct_CC=$CC
+ # Extract the first word of "gcc", so it can be a program name with args.
+set dummy gcc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_CC"; then
+ ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CC="gcc"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_CC" = x; then
+ CC=""
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ CC=$ac_ct_CC
+ fi
+else
+ CC="$ac_cv_prog_CC"
+fi
+
+if test -z "$CC"; then
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}cc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="${ac_tool_prefix}cc"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ fi
+fi
+if test -z "$CC"; then
+ # Extract the first word of "cc", so it can be a program name with args.
+set dummy cc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+ ac_prog_rejected=no
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ if test "$as_dir/$ac_word$ac_exec_ext" = "/usr/ucb/cc"; then
+ ac_prog_rejected=yes
+ continue
+ fi
+ ac_cv_prog_CC="cc"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+if test $ac_prog_rejected = yes; then
+ # We found a bogon in the path, so make sure we never use it.
+ set dummy $ac_cv_prog_CC
+ shift
+ if test $# != 0; then
+ # We chose a different compiler from the bogus one.
+ # However, it has the same basename, so the bogon will be chosen
+ # first if we set CC to just the basename; use the full file name.
+ shift
+ ac_cv_prog_CC="$as_dir/$ac_word${1+' '}$@"
+ fi
+fi
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$CC"; then
+ if test -n "$ac_tool_prefix"; then
+ for ac_prog in cl.exe
+ do
+ # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CC+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$CC"; then
+ ac_cv_prog_CC="$CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CC="$ac_tool_prefix$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+CC=$ac_cv_prog_CC
+if test -n "$CC"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CC" >&5
+$as_echo "$CC" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ test -n "$CC" && break
+ done
+fi
+if test -z "$CC"; then
+ ac_ct_CC=$CC
+ for ac_prog in cl.exe
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CC+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_CC"; then
+ ac_cv_prog_ac_ct_CC="$ac_ct_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CC="$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CC=$ac_cv_prog_ac_ct_CC
+if test -n "$ac_ct_CC"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CC" >&5
+$as_echo "$ac_ct_CC" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ test -n "$ac_ct_CC" && break
+done
+
+ if test "x$ac_ct_CC" = x; then
+ CC=""
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ CC=$ac_ct_CC
+ fi
+fi
+
+fi
+
+
+test -z "$CC" && { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "no acceptable C compiler found in \$PATH
+See \`config.log' for more details" "$LINENO" 5; }
+
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+ { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+ ac_status=$?
+ if test -s conftest.err; then
+ sed '10a\
+... rest of stderr output deleted ...
+ 10q' conftest.err >conftest.er1
+ cat conftest.er1 >&5
+ fi
+ rm -f conftest.er1 conftest.err
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }
+done
+
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files a.out a.out.dSYM a.exe b.out"
+# Try to create an executable without -o first, disregard a.out.
+# It will help us diagnose broken compilers, and finding out an intuition
+# of exeext.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler works" >&5
+$as_echo_n "checking whether the C compiler works... " >&6; }
+ac_link_default=`$as_echo "$ac_link" | sed 's/ -o *conftest[^ ]*//'`
+
+# The possible output files:
+ac_files="a.out conftest.exe conftest a.exe a_out.exe b.out conftest.*"
+
+ac_rmfiles=
+for ac_file in $ac_files
+do
+ case $ac_file in
+ *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+ * ) ac_rmfiles="$ac_rmfiles $ac_file";;
+ esac
+done
+rm -f $ac_rmfiles
+
+if { { ac_try="$ac_link_default"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_link_default") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then :
+ # Autoconf-2.13 could set the ac_cv_exeext variable to `no'.
+# So ignore a value of `no', otherwise this would lead to `EXEEXT = no'
+# in a Makefile. We should not override ac_cv_exeext if it was cached,
+# so that the user can short-circuit this test for compilers unknown to
+# Autoconf.
+for ac_file in $ac_files ''
+do
+ test -f "$ac_file" || continue
+ case $ac_file in
+ *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj )
+ ;;
+ [ab].out )
+ # We found the default executable, but exeext='' is most
+ # certainly right.
+ break;;
+ *.* )
+ if test "${ac_cv_exeext+set}" = set && test "$ac_cv_exeext" != no;
+ then :; else
+ ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+ fi
+ # We set ac_cv_exeext here because the later test for it is not
+ # safe: cross compilers may not add the suffix if given an `-o'
+ # argument, so we may need to know it at that point already.
+ # Even if this section looks crufty: it has the advantage of
+ # actually working.
+ break;;
+ * )
+ break;;
+ esac
+done
+test "$ac_cv_exeext" = no && ac_cv_exeext=
+
+else
+ ac_file=''
+fi
+if test -z "$ac_file"; then :
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+$as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error 77 "C compiler cannot create executables
+See \`config.log' for more details" "$LINENO" 5; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for C compiler default output file name" >&5
+$as_echo_n "checking for C compiler default output file name... " >&6; }
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_file" >&5
+$as_echo "$ac_file" >&6; }
+ac_exeext=$ac_cv_exeext
+
+rm -f -r a.out a.out.dSYM a.exe conftest$ac_cv_exeext b.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of executables" >&5
+$as_echo_n "checking for suffix of executables... " >&6; }
+if { { ac_try="$ac_link"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_link") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then :
+ # If both `conftest.exe' and `conftest' are `present' (well, observable)
+# catch `conftest.exe'. For instance with Cygwin, `ls conftest' will
+# work properly (i.e., refer to `conftest.exe'), while it won't with
+# `rm'.
+for ac_file in conftest.exe conftest conftest.*; do
+ test -f "$ac_file" || continue
+ case $ac_file in
+ *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM | *.o | *.obj ) ;;
+ *.* ) ac_cv_exeext=`expr "$ac_file" : '[^.]*\(\..*\)'`
+ break;;
+ * ) break;;
+ esac
+done
+else
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of executables: cannot compile and link
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest conftest$ac_cv_exeext
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_exeext" >&5
+$as_echo "$ac_cv_exeext" >&6; }
+
+rm -f conftest.$ac_ext
+EXEEXT=$ac_cv_exeext
+ac_exeext=$EXEEXT
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <stdio.h>
+int
+main ()
+{
+FILE *f = fopen ("conftest.out", "w");
+ return ferror (f) || fclose (f) != 0;
+
+ ;
+ return 0;
+}
+_ACEOF
+ac_clean_files="$ac_clean_files conftest.out"
+# Check that the compiler produces executables we can run. If not, either
+# the compiler is broken, or we cross compile.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are cross compiling" >&5
+$as_echo_n "checking whether we are cross compiling... " >&6; }
+if test "$cross_compiling" != yes; then
+ { { ac_try="$ac_link"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_link") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }
+ if { ac_try='./conftest$ac_cv_exeext'
+ { { case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_try") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; }; then
+ cross_compiling=no
+ else
+ if test "$cross_compiling" = maybe; then
+ cross_compiling=yes
+ else
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot run C compiled programs.
+If you meant to cross compile, use \`--host'.
+See \`config.log' for more details" "$LINENO" 5; }
+ fi
+ fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $cross_compiling" >&5
+$as_echo "$cross_compiling" >&6; }
+
+rm -f conftest.$ac_ext conftest$ac_cv_exeext conftest.out
+ac_clean_files=$ac_clean_files_save
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for suffix of object files" >&5
+$as_echo_n "checking for suffix of object files... " >&6; }
+if ${ac_cv_objext+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+rm -f conftest.o conftest.obj
+if { { ac_try="$ac_compile"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_compile") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then :
+ for ac_file in conftest.o conftest.obj conftest.*; do
+ test -f "$ac_file" || continue;
+ case $ac_file in
+ *.$ac_ext | *.xcoff | *.tds | *.d | *.pdb | *.xSYM | *.bb | *.bbg | *.map | *.inf | *.dSYM ) ;;
+ *) ac_cv_objext=`expr "$ac_file" : '.*\.\(.*\)'`
+ break;;
+ esac
+done
+else
+ $as_echo "$as_me: failed program was:" >&5
+sed 's/^/| /' conftest.$ac_ext >&5
+
+{ { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "cannot compute suffix of object files: cannot compile
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+rm -f conftest.$ac_cv_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_objext" >&5
+$as_echo "$ac_cv_objext" >&6; }
+OBJEXT=$ac_cv_objext
+ac_objext=$OBJEXT
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C compiler" >&5
+$as_echo_n "checking whether we are using the GNU C compiler... " >&6; }
+if ${ac_cv_c_compiler_gnu+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+#ifndef __GNUC__
+ choke me
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ ac_compiler_gnu=yes
+else
+ ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_c_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_c_compiler_gnu" >&5
+$as_echo "$ac_cv_c_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+ GCC=yes
+else
+ GCC=
+fi
+ac_test_CFLAGS=${CFLAGS+set}
+ac_save_CFLAGS=$CFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC accepts -g" >&5
+$as_echo_n "checking whether $CC accepts -g... " >&6; }
+if ${ac_cv_prog_cc_g+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_save_c_werror_flag=$ac_c_werror_flag
+ ac_c_werror_flag=yes
+ ac_cv_prog_cc_g=no
+ CFLAGS="-g"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ ac_cv_prog_cc_g=yes
+else
+ CFLAGS=""
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+else
+ ac_c_werror_flag=$ac_save_c_werror_flag
+ CFLAGS="-g"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ ac_cv_prog_cc_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ ac_c_werror_flag=$ac_save_c_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_g" >&5
+$as_echo "$ac_cv_prog_cc_g" >&6; }
+if test "$ac_test_CFLAGS" = set; then
+ CFLAGS=$ac_save_CFLAGS
+elif test $ac_cv_prog_cc_g = yes; then
+ if test "$GCC" = yes; then
+ CFLAGS="-g -O2"
+ else
+ CFLAGS="-g"
+ fi
+else
+ if test "$GCC" = yes; then
+ CFLAGS="-O2"
+ else
+ CFLAGS=
+ fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
+$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
+if ${ac_cv_prog_cc_c89+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <stdarg.h>
+#include <stdio.h>
+struct stat;
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+ char **p;
+ int i;
+{
+ return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+ char *s;
+ va_list v;
+ va_start (v,p);
+ s = g (p, va_arg (v,int));
+ va_end (v);
+ return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has
+ function prototypes and stuff, but not '\xHH' hex character constants.
+ These don't provoke an error unfortunately, instead are silently treated
+ as 'x'. The following induces an error, until -std is added to get
+ proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an
+ array size at least. It's necessary to write '\x00'==0 to get something
+ that's true only with -std. */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+ inside strings and character constants. */
+#define FOO(x) 'x'
+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
+ ;
+ return 0;
+}
+_ACEOF
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
+ -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+ CC="$ac_save_CC $ac_arg"
+ if ac_fn_c_try_compile "$LINENO"; then :
+ ac_cv_prog_cc_c89=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext
+ test "x$ac_cv_prog_cc_c89" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c89" in
+ x)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+$as_echo "none needed" >&6; } ;;
+ xno)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;;
+ *)
+ CC="$CC $ac_cv_prog_cc_c89"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
+esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
+
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC understands -c and -o together" >&5
+$as_echo_n "checking whether $CC understands -c and -o together... " >&6; }
+if ${am_cv_prog_cc_c_o+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+ # Make sure it works both with $CC and with simple cc.
+ # Following AC_PROG_CC_C_O, we do the test twice because some
+ # compilers refuse to overwrite an existing .o file with -o,
+ # though they will create one.
+ am_cv_prog_cc_c_o=yes
+ for am_i in 1 2; do
+ if { echo "$as_me:$LINENO: $CC -c conftest.$ac_ext -o conftest2.$ac_objext" >&5
+ ($CC -c conftest.$ac_ext -o conftest2.$ac_objext) >&5 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } \
+ && test -f conftest2.$ac_objext; then
+ : OK
+ else
+ am_cv_prog_cc_c_o=no
+ break
+ fi
+ done
+ rm -f core conftest*
+ unset am_i
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_prog_cc_c_o" >&5
+$as_echo "$am_cv_prog_cc_c_o" >&6; }
+if test "$am_cv_prog_cc_c_o" != yes; then
+ # Losing compiler, so override with the script.
+ # FIXME: It is wrong to rewrite CC.
+ # But if we don't then we get into trouble of one sort or another.
+ # A longer-term fix would be to have automake use am__CC in this case,
+ # and then we could set am__CC="\$(top_srcdir)/compile \$(CC)"
+ CC="$am_aux_dir/compile $CC"
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+$as_echo_n "checking how to run the C preprocessor... " >&6; }
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+ CPP=
+fi
+if test -z "$CPP"; then
+ if ${ac_cv_prog_CPP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ # Double quotes because CPP needs to be expanded
+ for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+ do
+ ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+ # Use a header file that comes with gcc, so configuring glibc
+ # with a fresh cross-compiler works.
+ # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ # <limits.h> exists even on freestanding compilers.
+ # On the NeXT, cc -E runs the code through the compiler's parser,
+ # not just through cpp. "Syntax error" is here to catch this case.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+ Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+ # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+ # OK, works on sane cases. Now check whether nonexistent headers
+ # can be detected and how.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+ # Broken: success on invalid input.
+continue
+else
+ # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+ break
+fi
+
+ done
+ ac_cv_prog_CPP=$CPP
+
+fi
+ CPP=$ac_cv_prog_CPP
+else
+ ac_cv_prog_CPP=$CPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+$as_echo "$CPP" >&6; }
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+ # Use a header file that comes with gcc, so configuring glibc
+ # with a fresh cross-compiler works.
+ # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ # <limits.h> exists even on freestanding compilers.
+ # On the NeXT, cc -E runs the code through the compiler's parser,
+ # not just through cpp. "Syntax error" is here to catch this case.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+ Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+ # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+ # OK, works on sane cases. Now check whether nonexistent headers
+ # can be detected and how.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+ # Broken: success on invalid input.
+continue
+else
+ # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for grep that handles long lines and -e" >&5
+$as_echo_n "checking for grep that handles long lines and -e... " >&6; }
+if ${ac_cv_path_GREP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -z "$GREP"; then
+ ac_path_GREP_found=false
+ # Loop through the user's path and test for each of PROGNAME-LIST
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_prog in grep ggrep; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ ac_path_GREP="$as_dir/$ac_prog$ac_exec_ext"
+ as_fn_executable_p "$ac_path_GREP" || continue
+# Check for GNU ac_path_GREP and select it if it is found.
+ # Check for GNU $ac_path_GREP
+case `"$ac_path_GREP" --version 2>&1` in
+*GNU*)
+ ac_cv_path_GREP="$ac_path_GREP" ac_path_GREP_found=:;;
+*)
+ ac_count=0
+ $as_echo_n 0123456789 >"conftest.in"
+ while :
+ do
+ cat "conftest.in" "conftest.in" >"conftest.tmp"
+ mv "conftest.tmp" "conftest.in"
+ cp "conftest.in" "conftest.nl"
+ $as_echo 'GREP' >> "conftest.nl"
+ "$ac_path_GREP" -e 'GREP$' -e '-(cannot match)-' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+ diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+ as_fn_arith $ac_count + 1 && ac_count=$as_val
+ if test $ac_count -gt ${ac_path_GREP_max-0}; then
+ # Best one so far, save it but keep looking for a better one
+ ac_cv_path_GREP="$ac_path_GREP"
+ ac_path_GREP_max=$ac_count
+ fi
+ # 10*(2^10) chars as input seems more than enough
+ test $ac_count -gt 10 && break
+ done
+ rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+ $ac_path_GREP_found && break 3
+ done
+ done
+ done
+IFS=$as_save_IFS
+ if test -z "$ac_cv_path_GREP"; then
+ as_fn_error $? "no acceptable grep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+ fi
+else
+ ac_cv_path_GREP=$GREP
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_GREP" >&5
+$as_echo "$ac_cv_path_GREP" >&6; }
+ GREP="$ac_cv_path_GREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for egrep" >&5
+$as_echo_n "checking for egrep... " >&6; }
+if ${ac_cv_path_EGREP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if echo a | $GREP -E '(a|b)' >/dev/null 2>&1
+ then ac_cv_path_EGREP="$GREP -E"
+ else
+ if test -z "$EGREP"; then
+ ac_path_EGREP_found=false
+ # Loop through the user's path and test for each of PROGNAME-LIST
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_prog in egrep; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ ac_path_EGREP="$as_dir/$ac_prog$ac_exec_ext"
+ as_fn_executable_p "$ac_path_EGREP" || continue
+# Check for GNU ac_path_EGREP and select it if it is found.
+ # Check for GNU $ac_path_EGREP
+case `"$ac_path_EGREP" --version 2>&1` in
+*GNU*)
+ ac_cv_path_EGREP="$ac_path_EGREP" ac_path_EGREP_found=:;;
+*)
+ ac_count=0
+ $as_echo_n 0123456789 >"conftest.in"
+ while :
+ do
+ cat "conftest.in" "conftest.in" >"conftest.tmp"
+ mv "conftest.tmp" "conftest.in"
+ cp "conftest.in" "conftest.nl"
+ $as_echo 'EGREP' >> "conftest.nl"
+ "$ac_path_EGREP" 'EGREP$' < "conftest.nl" >"conftest.out" 2>/dev/null || break
+ diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+ as_fn_arith $ac_count + 1 && ac_count=$as_val
+ if test $ac_count -gt ${ac_path_EGREP_max-0}; then
+ # Best one so far, save it but keep looking for a better one
+ ac_cv_path_EGREP="$ac_path_EGREP"
+ ac_path_EGREP_max=$ac_count
+ fi
+ # 10*(2^10) chars as input seems more than enough
+ test $ac_count -gt 10 && break
+ done
+ rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+ $ac_path_EGREP_found && break 3
+ done
+ done
+ done
+IFS=$as_save_IFS
+ if test -z "$ac_cv_path_EGREP"; then
+ as_fn_error $? "no acceptable egrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+ fi
+else
+ ac_cv_path_EGREP=$EGREP
+fi
+
+ fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_EGREP" >&5
+$as_echo "$ac_cv_path_EGREP" >&6; }
+ EGREP="$ac_cv_path_EGREP"
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ANSI C header files" >&5
+$as_echo_n "checking for ANSI C header files... " >&6; }
+if ${ac_cv_header_stdc+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <float.h>
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ ac_cv_header_stdc=yes
+else
+ ac_cv_header_stdc=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+if test $ac_cv_header_stdc = yes; then
+ # SunOS 4.x string.h does not declare mem*, contrary to ANSI.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <string.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "memchr" >/dev/null 2>&1; then :
+
+else
+ ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+ # ISC 2.0.2 stdlib.h does not declare free, contrary to ANSI.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <stdlib.h>
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "free" >/dev/null 2>&1; then :
+
+else
+ ac_cv_header_stdc=no
+fi
+rm -f conftest*
+
+fi
+
+if test $ac_cv_header_stdc = yes; then
+ # /bin/cc in Irix-4.0.5 gets non-ANSI ctype macros unless using -ansi.
+ if test "$cross_compiling" = yes; then :
+ :
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <ctype.h>
+#include <stdlib.h>
+#if ((' ' & 0x0FF) == 0x020)
+# define ISLOWER(c) ('a' <= (c) && (c) <= 'z')
+# define TOUPPER(c) (ISLOWER(c) ? 'A' + ((c) - 'a') : (c))
+#else
+# define ISLOWER(c) \
+ (('a' <= (c) && (c) <= 'i') \
+ || ('j' <= (c) && (c) <= 'r') \
+ || ('s' <= (c) && (c) <= 'z'))
+# define TOUPPER(c) (ISLOWER(c) ? ((c) | 0x40) : (c))
+#endif
+
+#define XOR(e, f) (((e) && !(f)) || (!(e) && (f)))
+int
+main ()
+{
+ int i;
+ for (i = 0; i < 256; i++)
+ if (XOR (islower (i), ISLOWER (i))
+ || toupper (i) != TOUPPER (i))
+ return 2;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+
+else
+ ac_cv_header_stdc=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_header_stdc" >&5
+$as_echo "$ac_cv_header_stdc" >&6; }
+if test $ac_cv_header_stdc = yes; then
+
+$as_echo "#define STDC_HEADERS 1" >>confdefs.h
+
+fi
+
+# On IRIX 5.3, sys/types and inttypes.h are conflicting.
+for ac_header in sys/types.h sys/stat.h stdlib.h string.h memory.h strings.h \
+ inttypes.h stdint.h unistd.h
+do :
+ as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_compile "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default
+"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+ cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+
+ ac_fn_c_check_header_mongrel "$LINENO" "minix/config.h" "ac_cv_header_minix_config_h" "$ac_includes_default"
+if test "x$ac_cv_header_minix_config_h" = xyes; then :
+ MINIX=yes
+else
+ MINIX=
+fi
+
+
+ if test "$MINIX" = yes; then
+
+$as_echo "#define _POSIX_SOURCE 1" >>confdefs.h
+
+
+$as_echo "#define _POSIX_1_SOURCE 2" >>confdefs.h
+
+
+$as_echo "#define _MINIX 1" >>confdefs.h
+
+ fi
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether it is safe to define __EXTENSIONS__" >&5
+$as_echo_n "checking whether it is safe to define __EXTENSIONS__... " >&6; }
+if ${ac_cv_safe_to_define___extensions__+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+# define __EXTENSIONS__ 1
+ $ac_includes_default
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ ac_cv_safe_to_define___extensions__=yes
+else
+ ac_cv_safe_to_define___extensions__=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_safe_to_define___extensions__" >&5
+$as_echo "$ac_cv_safe_to_define___extensions__" >&6; }
+ test $ac_cv_safe_to_define___extensions__ = yes &&
+ $as_echo "#define __EXTENSIONS__ 1" >>confdefs.h
+
+ $as_echo "#define _ALL_SOURCE 1" >>confdefs.h
+
+ $as_echo "#define _GNU_SOURCE 1" >>confdefs.h
+
+ $as_echo "#define _POSIX_PTHREAD_SEMANTICS 1" >>confdefs.h
+
+ $as_echo "#define _TANDEM_SOURCE 1" >>confdefs.h
+
+
+# Check whether --enable-largefile was given.
+if test "${enable_largefile+set}" = set; then :
+ enableval=$enable_largefile;
+fi
+
+if test "$enable_largefile" != no; then
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for special C compiler options needed for large files" >&5
+$as_echo_n "checking for special C compiler options needed for large files... " >&6; }
+if ${ac_cv_sys_largefile_CC+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_cv_sys_largefile_CC=no
+ if test "$GCC" != yes; then
+ ac_save_CC=$CC
+ while :; do
+ # IRIX 6.2 and later do not support large files by default,
+ # so use the C compiler's -n32 option if that helps.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+ We can't simply define LARGE_OFF_T to be 9223372036854775807,
+ since some C++ compilers masquerading as C compilers
+ incorrectly reject 9223372036854775807. */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+ int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ && LARGE_OFF_T % 2147483647 == 1)
+ ? 1 : -1];
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+ if ac_fn_c_try_compile "$LINENO"; then :
+ break
+fi
+rm -f core conftest.err conftest.$ac_objext
+ CC="$CC -n32"
+ if ac_fn_c_try_compile "$LINENO"; then :
+ ac_cv_sys_largefile_CC=' -n32'; break
+fi
+rm -f core conftest.err conftest.$ac_objext
+ break
+ done
+ CC=$ac_save_CC
+ rm -f conftest.$ac_ext
+ fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_largefile_CC" >&5
+$as_echo "$ac_cv_sys_largefile_CC" >&6; }
+ if test "$ac_cv_sys_largefile_CC" != no; then
+ CC=$CC$ac_cv_sys_largefile_CC
+ fi
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _FILE_OFFSET_BITS value needed for large files" >&5
+$as_echo_n "checking for _FILE_OFFSET_BITS value needed for large files... " >&6; }
+if ${ac_cv_sys_file_offset_bits+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ while :; do
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+ We can't simply define LARGE_OFF_T to be 9223372036854775807,
+ since some C++ compilers masquerading as C compilers
+ incorrectly reject 9223372036854775807. */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+ int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ && LARGE_OFF_T % 2147483647 == 1)
+ ? 1 : -1];
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ ac_cv_sys_file_offset_bits=no; break
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#define _FILE_OFFSET_BITS 64
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+ We can't simply define LARGE_OFF_T to be 9223372036854775807,
+ since some C++ compilers masquerading as C compilers
+ incorrectly reject 9223372036854775807. */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+ int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ && LARGE_OFF_T % 2147483647 == 1)
+ ? 1 : -1];
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ ac_cv_sys_file_offset_bits=64; break
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ ac_cv_sys_file_offset_bits=unknown
+ break
+done
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_file_offset_bits" >&5
+$as_echo "$ac_cv_sys_file_offset_bits" >&6; }
+case $ac_cv_sys_file_offset_bits in #(
+ no | unknown) ;;
+ *)
+cat >>confdefs.h <<_ACEOF
+#define _FILE_OFFSET_BITS $ac_cv_sys_file_offset_bits
+_ACEOF
+;;
+esac
+rm -rf conftest*
+ if test $ac_cv_sys_file_offset_bits = unknown; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for _LARGE_FILES value needed for large files" >&5
+$as_echo_n "checking for _LARGE_FILES value needed for large files... " >&6; }
+if ${ac_cv_sys_large_files+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ while :; do
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+ We can't simply define LARGE_OFF_T to be 9223372036854775807,
+ since some C++ compilers masquerading as C compilers
+ incorrectly reject 9223372036854775807. */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+ int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ && LARGE_OFF_T % 2147483647 == 1)
+ ? 1 : -1];
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ ac_cv_sys_large_files=no; break
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#define _LARGE_FILES 1
+#include <sys/types.h>
+ /* Check that off_t can represent 2**63 - 1 correctly.
+ We can't simply define LARGE_OFF_T to be 9223372036854775807,
+ since some C++ compilers masquerading as C compilers
+ incorrectly reject 9223372036854775807. */
+#define LARGE_OFF_T (((off_t) 1 << 62) - 1 + ((off_t) 1 << 62))
+ int off_t_is_large[(LARGE_OFF_T % 2147483629 == 721
+ && LARGE_OFF_T % 2147483647 == 1)
+ ? 1 : -1];
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ ac_cv_sys_large_files=1; break
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ ac_cv_sys_large_files=unknown
+ break
+done
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_sys_large_files" >&5
+$as_echo "$ac_cv_sys_large_files" >&6; }
+case $ac_cv_sys_large_files in #(
+ no | unknown) ;;
+ *)
+cat >>confdefs.h <<_ACEOF
+#define _LARGE_FILES $ac_cv_sys_large_files
+_ACEOF
+;;
+esac
+rm -rf conftest*
+ fi
+
+
+fi
+
+
+am__api_version='1.16'
+
+# Find a good install program. We prefer a C program (faster),
+# so one script is as good as another. But avoid the broken or
+# incompatible versions:
+# SysV /etc/install, /usr/sbin/install
+# SunOS /usr/etc/install
+# IRIX /sbin/install
+# AIX /bin/install
+# AmigaOS /C/install, which installs bootblocks on floppy discs
+# AIX 4 /usr/bin/installbsd, which doesn't work without a -g flag
+# AFS /usr/afsws/bin/install, which mishandles nonexistent args
+# SVR4 /usr/ucb/install, which tries to use the nonexistent group "staff"
+# OS/2's system install, which has a completely different semantic
+# ./install, which can be erroneously created by make from ./install.sh.
+# Reject install programs that cannot install multiple files.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a BSD-compatible install" >&5
+$as_echo_n "checking for a BSD-compatible install... " >&6; }
+if test -z "$INSTALL"; then
+if ${ac_cv_path_install+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ # Account for people who put trailing slashes in PATH elements.
+case $as_dir/ in #((
+ ./ | .// | /[cC]/* | \
+ /etc/* | /usr/sbin/* | /usr/etc/* | /sbin/* | /usr/afsws/bin/* | \
+ ?:[\\/]os2[\\/]install[\\/]* | ?:[\\/]OS2[\\/]INSTALL[\\/]* | \
+ /usr/ucb/* ) ;;
+ *)
+ # OSF1 and SCO ODT 3.0 have their own names for install.
+ # Don't use installbsd from OSF since it installs stuff as root
+ # by default.
+ for ac_prog in ginstall scoinst install; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext"; then
+ if test $ac_prog = install &&
+ grep dspmsg "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+ # AIX install. It has an incompatible calling convention.
+ :
+ elif test $ac_prog = install &&
+ grep pwplus "$as_dir/$ac_prog$ac_exec_ext" >/dev/null 2>&1; then
+ # program-specific install script used by HP pwplus--don't use.
+ :
+ else
+ rm -rf conftest.one conftest.two conftest.dir
+ echo one > conftest.one
+ echo two > conftest.two
+ mkdir conftest.dir
+ if "$as_dir/$ac_prog$ac_exec_ext" -c conftest.one conftest.two "`pwd`/conftest.dir" &&
+ test -s conftest.one && test -s conftest.two &&
+ test -s conftest.dir/conftest.one &&
+ test -s conftest.dir/conftest.two
+ then
+ ac_cv_path_install="$as_dir/$ac_prog$ac_exec_ext -c"
+ break 3
+ fi
+ fi
+ fi
+ done
+ done
+ ;;
+esac
+
+ done
+IFS=$as_save_IFS
+
+rm -rf conftest.one conftest.two conftest.dir
+
+fi
+ if test "${ac_cv_path_install+set}" = set; then
+ INSTALL=$ac_cv_path_install
+ else
+ # As a last resort, use the slow shell script. Don't cache a
+ # value for INSTALL within a source directory, because that will
+ # break other packages using the cache if that directory is
+ # removed, or if the value is a relative name.
+ INSTALL=$ac_install_sh
+ fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $INSTALL" >&5
+$as_echo "$INSTALL" >&6; }
+
+# Use test -z because SunOS4 sh mishandles braces in ${var-val}.
+# It thinks the first close brace ends the variable substitution.
+test -z "$INSTALL_PROGRAM" && INSTALL_PROGRAM='${INSTALL}'
+
+test -z "$INSTALL_SCRIPT" && INSTALL_SCRIPT='${INSTALL}'
+
+test -z "$INSTALL_DATA" && INSTALL_DATA='${INSTALL} -m 644'
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether build environment is sane" >&5
+$as_echo_n "checking whether build environment is sane... " >&6; }
+# Reject unsafe characters in $srcdir or the absolute working directory
+# name. Accept space and tab only in the latter.
+am_lf='
+'
+case `pwd` in
+ *[\\\"\#\$\&\'\`$am_lf]*)
+ as_fn_error $? "unsafe absolute working directory name" "$LINENO" 5;;
+esac
+case $srcdir in
+ *[\\\"\#\$\&\'\`$am_lf\ \ ]*)
+ as_fn_error $? "unsafe srcdir value: '$srcdir'" "$LINENO" 5;;
+esac
+
+# Do 'set' in a subshell so we don't clobber the current shell's
+# arguments. Must try -L first in case configure is actually a
+# symlink; some systems play weird games with the mod time of symlinks
+# (eg FreeBSD returns the mod time of the symlink's containing
+# directory).
+if (
+ am_has_slept=no
+ for am_try in 1 2; do
+ echo "timestamp, slept: $am_has_slept" > conftest.file
+ set X `ls -Lt "$srcdir/configure" conftest.file 2> /dev/null`
+ if test "$*" = "X"; then
+ # -L didn't work.
+ set X `ls -t "$srcdir/configure" conftest.file`
+ fi
+ if test "$*" != "X $srcdir/configure conftest.file" \
+ && test "$*" != "X conftest.file $srcdir/configure"; then
+
+ # If neither matched, then we have a broken ls. This can happen
+ # if, for instance, CONFIG_SHELL is bash and it inherits a
+ # broken ls alias from the environment. This has actually
+ # happened. Such a system could not be considered "sane".
+ as_fn_error $? "ls -t appears to fail. Make sure there is not a broken
+ alias in your environment" "$LINENO" 5
+ fi
+ if test "$2" = conftest.file || test $am_try -eq 2; then
+ break
+ fi
+ # Just in case.
+ sleep 1
+ am_has_slept=yes
+ done
+ test "$2" = conftest.file
+ )
+then
+ # Ok.
+ :
+else
+ as_fn_error $? "newly created file is older than distributed files!
+Check your system clock" "$LINENO" 5
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+# If we didn't sleep, we still need to ensure time stamps of config.status and
+# generated files are strictly newer.
+am_sleep_pid=
+if grep 'slept: no' conftest.file >/dev/null 2>&1; then
+ ( sleep 1 ) &
+ am_sleep_pid=$!
+fi
+
+rm -f conftest.file
+
+test "$program_prefix" != NONE &&
+ program_transform_name="s&^&$program_prefix&;$program_transform_name"
+# Use a double $ so make ignores it.
+test "$program_suffix" != NONE &&
+ program_transform_name="s&\$&$program_suffix&;$program_transform_name"
+# Double any \ or $.
+# By default was `s,x,x', remove it if useless.
+ac_script='s/[\\$]/&&/g;s/;s,x,x,$//'
+program_transform_name=`$as_echo "$program_transform_name" | sed "$ac_script"`
+
+if test x"${MISSING+set}" != xset; then
+ case $am_aux_dir in
+ *\ * | *\ *)
+ MISSING="\${SHELL} \"$am_aux_dir/missing\"" ;;
+ *)
+ MISSING="\${SHELL} $am_aux_dir/missing" ;;
+ esac
+fi
+# Use eval to expand $SHELL
+if eval "$MISSING --is-lightweight"; then
+ am_missing_run="$MISSING "
+else
+ am_missing_run=
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: 'missing' script is too old or missing" >&5
+$as_echo "$as_me: WARNING: 'missing' script is too old or missing" >&2;}
+fi
+
+if test x"${install_sh+set}" != xset; then
+ case $am_aux_dir in
+ *\ * | *\ *)
+ install_sh="\${SHELL} '$am_aux_dir/install-sh'" ;;
+ *)
+ install_sh="\${SHELL} $am_aux_dir/install-sh"
+ esac
+fi
+
+# Installed binaries are usually stripped using 'strip' when the user
+# run "make install-strip". However 'strip' might not be the right
+# tool to use in cross-compilation environments, therefore Automake
+# will honor the 'STRIP' environment variable to overrule this program.
+if test "$cross_compiling" != no; then
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_STRIP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$STRIP"; then
+ ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+$as_echo "$STRIP" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+ ac_ct_STRIP=$STRIP
+ # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_STRIP"; then
+ ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_STRIP="strip"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+$as_echo "$ac_ct_STRIP" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_STRIP" = x; then
+ STRIP=":"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ STRIP=$ac_ct_STRIP
+ fi
+else
+ STRIP="$ac_cv_prog_STRIP"
+fi
+
+fi
+INSTALL_STRIP_PROGRAM="\$(install_sh) -c -s"
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a thread-safe mkdir -p" >&5
+$as_echo_n "checking for a thread-safe mkdir -p... " >&6; }
+if test -z "$MKDIR_P"; then
+ if ${ac_cv_path_mkdir+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/opt/sfw/bin
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_prog in mkdir gmkdir; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ as_fn_executable_p "$as_dir/$ac_prog$ac_exec_ext" || continue
+ case `"$as_dir/$ac_prog$ac_exec_ext" --version 2>&1` in #(
+ 'mkdir (GNU coreutils) '* | \
+ 'mkdir (coreutils) '* | \
+ 'mkdir (fileutils) '4.1*)
+ ac_cv_path_mkdir=$as_dir/$ac_prog$ac_exec_ext
+ break 3;;
+ esac
+ done
+ done
+ done
+IFS=$as_save_IFS
+
+fi
+
+ test -d ./--version && rmdir ./--version
+ if test "${ac_cv_path_mkdir+set}" = set; then
+ MKDIR_P="$ac_cv_path_mkdir -p"
+ else
+ # As a last resort, use the slow shell script. Don't cache a
+ # value for MKDIR_P within a source directory, because that will
+ # break other packages using the cache if that directory is
+ # removed, or if the value is a relative name.
+ MKDIR_P="$ac_install_sh -d"
+ fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKDIR_P" >&5
+$as_echo "$MKDIR_P" >&6; }
+
+for ac_prog in gawk mawk nawk awk
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AWK+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$AWK"; then
+ ac_cv_prog_AWK="$AWK" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_AWK="$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+AWK=$ac_cv_prog_AWK
+if test -n "$AWK"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AWK" >&5
+$as_echo "$AWK" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ test -n "$AWK" && break
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ${MAKE-make} sets \$(MAKE)" >&5
+$as_echo_n "checking whether ${MAKE-make} sets \$(MAKE)... " >&6; }
+set x ${MAKE-make}
+ac_make=`$as_echo "$2" | sed 's/+/p/g; s/[^a-zA-Z0-9_]/_/g'`
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+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for fgrep" >&5
+$as_echo_n "checking for fgrep... " >&6; }
+if ${ac_cv_path_FGREP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if echo 'ab*c' | $GREP -F 'ab*c' >/dev/null 2>&1
+ then ac_cv_path_FGREP="$GREP -F"
+ else
+ if test -z "$FGREP"; then
+ ac_path_FGREP_found=false
+ # Loop through the user's path and test for each of PROGNAME-LIST
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH$PATH_SEPARATOR/usr/xpg4/bin
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_prog in fgrep; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ ac_path_FGREP="$as_dir/$ac_prog$ac_exec_ext"
+ as_fn_executable_p "$ac_path_FGREP" || continue
+# Check for GNU ac_path_FGREP and select it if it is found.
+ # Check for GNU $ac_path_FGREP
+case `"$ac_path_FGREP" --version 2>&1` in
+*GNU*)
+ ac_cv_path_FGREP="$ac_path_FGREP" ac_path_FGREP_found=:;;
+*)
+ ac_count=0
+ $as_echo_n 0123456789 >"conftest.in"
+ while :
+ do
+ cat "conftest.in" "conftest.in" >"conftest.tmp"
+ mv "conftest.tmp" "conftest.in"
+ cp "conftest.in" "conftest.nl"
+ $as_echo 'FGREP' >> "conftest.nl"
+ "$ac_path_FGREP" FGREP < "conftest.nl" >"conftest.out" 2>/dev/null || break
+ diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+ as_fn_arith $ac_count + 1 && ac_count=$as_val
+ if test $ac_count -gt ${ac_path_FGREP_max-0}; then
+ # Best one so far, save it but keep looking for a better one
+ ac_cv_path_FGREP="$ac_path_FGREP"
+ ac_path_FGREP_max=$ac_count
+ fi
+ # 10*(2^10) chars as input seems more than enough
+ test $ac_count -gt 10 && break
+ done
+ rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+ $ac_path_FGREP_found && break 3
+ done
+ done
+ done
+IFS=$as_save_IFS
+ if test -z "$ac_cv_path_FGREP"; then
+ as_fn_error $? "no acceptable fgrep could be found in $PATH$PATH_SEPARATOR/usr/xpg4/bin" "$LINENO" 5
+ fi
+else
+ ac_cv_path_FGREP=$FGREP
+fi
+
+ fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_FGREP" >&5
+$as_echo "$ac_cv_path_FGREP" >&6; }
+ FGREP="$ac_cv_path_FGREP"
+
+
+test -z "$GREP" && GREP=grep
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+# Check whether --with-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then :
+ withval=$with_gnu_ld; test no = "$withval" || with_gnu_ld=yes
+else
+ with_gnu_ld=no
+fi
+
+ac_prog=ld
+if test yes = "$GCC"; then
+ # Check if gcc -print-prog-name=ld gives a path.
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
+$as_echo_n "checking for ld used by $CC... " >&6; }
+ case $host in
+ *-*-mingw*)
+ # gcc leaves a trailing carriage return, which upsets mingw
+ ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+ *)
+ ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+ esac
+ case $ac_prog in
+ # Accept absolute paths.
+ [\\/]* | ?:[\\/]*)
+ re_direlt='/[^/][^/]*/\.\./'
+ # Canonicalize the pathname of ld
+ ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+ while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+ ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+ done
+ test -z "$LD" && LD=$ac_prog
+ ;;
+ "")
+ # If it fails, then pretend we aren't using GCC.
+ ac_prog=ld
+ ;;
+ *)
+ # If it is relative, then search for the first ld in PATH.
+ with_gnu_ld=unknown
+ ;;
+ esac
+elif test yes = "$with_gnu_ld"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+$as_echo_n "checking for GNU ld... " >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+$as_echo_n "checking for non-GNU ld... " >&6; }
+fi
+if ${lt_cv_path_LD+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -z "$LD"; then
+ lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+ for ac_dir in $PATH; do
+ IFS=$lt_save_ifs
+ test -z "$ac_dir" && ac_dir=.
+ if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+ lt_cv_path_LD=$ac_dir/$ac_prog
+ # Check to see if the program is GNU ld. I'd rather use --version,
+ # but apparently some variants of GNU ld only accept -v.
+ # Break only if it was the GNU/non-GNU ld that we prefer.
+ case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+ *GNU* | *'with BFD'*)
+ test no != "$with_gnu_ld" && break
+ ;;
+ *)
+ test yes != "$with_gnu_ld" && break
+ ;;
+ esac
+ fi
+ done
+ IFS=$lt_save_ifs
+else
+ lt_cv_path_LD=$LD # Let the user override the test with a path.
+fi
+fi
+
+LD=$lt_cv_path_LD
+if test -n "$LD"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
+if ${lt_cv_prog_gnu_ld+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ # I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+ lt_cv_prog_gnu_ld=yes
+ ;;
+*)
+ lt_cv_prog_gnu_ld=no
+ ;;
+esac
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5
+$as_echo "$lt_cv_prog_gnu_ld" >&6; }
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BSD- or MS-compatible name lister (nm)" >&5
+$as_echo_n "checking for BSD- or MS-compatible name lister (nm)... " >&6; }
+if ${lt_cv_path_NM+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$NM"; then
+ # Let the user override the test.
+ lt_cv_path_NM=$NM
+else
+ lt_nm_to_check=${ac_tool_prefix}nm
+ if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
+ lt_nm_to_check="$lt_nm_to_check nm"
+ fi
+ for lt_tmp_nm in $lt_nm_to_check; do
+ lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+ for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
+ IFS=$lt_save_ifs
+ test -z "$ac_dir" && ac_dir=.
+ tmp_nm=$ac_dir/$lt_tmp_nm
+ if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then
+ # Check to see if the nm accepts a BSD-compat flag.
+ # Adding the 'sed 1q' prevents false positives on HP-UX, which says:
+ # nm: unknown option "B" ignored
+ # Tru64's nm complains that /dev/null is an invalid object file
+ # MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty
+ case $build_os in
+ mingw*) lt_bad_file=conftest.nm/nofile ;;
+ *) lt_bad_file=/dev/null ;;
+ esac
+ case `"$tmp_nm" -B $lt_bad_file 2>&1 | sed '1q'` in
+ *$lt_bad_file* | *'Invalid file or object type'*)
+ lt_cv_path_NM="$tmp_nm -B"
+ break 2
+ ;;
+ *)
+ case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
+ */dev/null*)
+ lt_cv_path_NM="$tmp_nm -p"
+ break 2
+ ;;
+ *)
+ lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
+ continue # so that we can try to find one that supports BSD flags
+ ;;
+ esac
+ ;;
+ esac
+ fi
+ done
+ IFS=$lt_save_ifs
+ done
+ : ${lt_cv_path_NM=no}
+fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_NM" >&5
+$as_echo "$lt_cv_path_NM" >&6; }
+if test no != "$lt_cv_path_NM"; then
+ NM=$lt_cv_path_NM
+else
+ # Didn't find any BSD compatible name lister, look for dumpbin.
+ if test -n "$DUMPBIN"; then :
+ # Let the user override the test.
+ else
+ if test -n "$ac_tool_prefix"; then
+ for ac_prog in dumpbin "link -dump"
+ do
+ # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DUMPBIN+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$DUMPBIN"; then
+ ac_cv_prog_DUMPBIN="$DUMPBIN" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_DUMPBIN="$ac_tool_prefix$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+DUMPBIN=$ac_cv_prog_DUMPBIN
+if test -n "$DUMPBIN"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DUMPBIN" >&5
+$as_echo "$DUMPBIN" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ test -n "$DUMPBIN" && break
+ done
+fi
+if test -z "$DUMPBIN"; then
+ ac_ct_DUMPBIN=$DUMPBIN
+ for ac_prog in dumpbin "link -dump"
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DUMPBIN+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_DUMPBIN"; then
+ ac_cv_prog_ac_ct_DUMPBIN="$ac_ct_DUMPBIN" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_DUMPBIN="$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DUMPBIN=$ac_cv_prog_ac_ct_DUMPBIN
+if test -n "$ac_ct_DUMPBIN"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DUMPBIN" >&5
+$as_echo "$ac_ct_DUMPBIN" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ test -n "$ac_ct_DUMPBIN" && break
+done
+
+ if test "x$ac_ct_DUMPBIN" = x; then
+ DUMPBIN=":"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ DUMPBIN=$ac_ct_DUMPBIN
+ fi
+fi
+
+ case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in
+ *COFF*)
+ DUMPBIN="$DUMPBIN -symbols -headers"
+ ;;
+ *)
+ DUMPBIN=:
+ ;;
+ esac
+ fi
+
+ if test : != "$DUMPBIN"; then
+ NM=$DUMPBIN
+ fi
+fi
+test -z "$NM" && NM=nm
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the name lister ($NM) interface" >&5
+$as_echo_n "checking the name lister ($NM) interface... " >&6; }
+if ${lt_cv_nm_interface+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_nm_interface="BSD nm"
+ echo "int some_variable = 0;" > conftest.$ac_ext
+ (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&5)
+ (eval "$ac_compile" 2>conftest.err)
+ cat conftest.err >&5
+ (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&5)
+ (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
+ cat conftest.err >&5
+ (eval echo "\"\$as_me:$LINENO: output\"" >&5)
+ cat conftest.out >&5
+ if $GREP 'External.*some_variable' conftest.out > /dev/null; then
+ lt_cv_nm_interface="MS dumpbin"
+ fi
+ rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_nm_interface" >&5
+$as_echo "$lt_cv_nm_interface" >&6; }
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether ln -s works" >&5
+$as_echo_n "checking whether ln -s works... " >&6; }
+LN_S=$as_ln_s
+if test "$LN_S" = "ln -s"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no, using $LN_S" >&5
+$as_echo "no, using $LN_S" >&6; }
+fi
+
+# find the maximum length of command line arguments
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking the maximum length of command line arguments" >&5
+$as_echo_n "checking the maximum length of command line arguments... " >&6; }
+if ${lt_cv_sys_max_cmd_len+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ i=0
+ teststring=ABCD
+
+ case $build_os in
+ msdosdjgpp*)
+ # On DJGPP, this test can blow up pretty badly due to problems in libc
+ # (any single argument exceeding 2000 bytes causes a buffer overrun
+ # during glob expansion). Even if it were fixed, the result of this
+ # check would be larger than it should be.
+ lt_cv_sys_max_cmd_len=12288; # 12K is about right
+ ;;
+
+ gnu*)
+ # Under GNU Hurd, this test is not required because there is
+ # no limit to the length of command line arguments.
+ # Libtool will interpret -1 as no limit whatsoever
+ lt_cv_sys_max_cmd_len=-1;
+ ;;
+
+ cygwin* | mingw* | cegcc*)
+ # On Win9x/ME, this test blows up -- it succeeds, but takes
+ # about 5 minutes as the teststring grows exponentially.
+ # Worse, since 9x/ME are not pre-emptively multitasking,
+ # you end up with a "frozen" computer, even though with patience
+ # the test eventually succeeds (with a max line length of 256k).
+ # Instead, let's just punt: use the minimum linelength reported by
+ # all of the supported platforms: 8192 (on NT/2K/XP).
+ lt_cv_sys_max_cmd_len=8192;
+ ;;
+
+ mint*)
+ # On MiNT this can take a long time and run out of memory.
+ lt_cv_sys_max_cmd_len=8192;
+ ;;
+
+ amigaos*)
+ # On AmigaOS with pdksh, this test takes hours, literally.
+ # So we just punt and use a minimum line length of 8192.
+ lt_cv_sys_max_cmd_len=8192;
+ ;;
+
+ bitrig* | darwin* | dragonfly* | freebsd* | netbsd* | openbsd*)
+ # This has been around since 386BSD, at least. Likely further.
+ if test -x /sbin/sysctl; then
+ lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
+ elif test -x /usr/sbin/sysctl; then
+ lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
+ else
+ lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs
+ fi
+ # And add a safety zone
+ lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+ lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+ ;;
+
+ interix*)
+ # We know the value 262144 and hardcode it with a safety zone (like BSD)
+ lt_cv_sys_max_cmd_len=196608
+ ;;
+
+ os2*)
+ # The test takes a long time on OS/2.
+ lt_cv_sys_max_cmd_len=8192
+ ;;
+
+ osf*)
+ # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
+ # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
+ # nice to cause kernel panics so lets avoid the loop below.
+ # First set a reasonable default.
+ lt_cv_sys_max_cmd_len=16384
+ #
+ if test -x /sbin/sysconfig; then
+ case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
+ *1*) lt_cv_sys_max_cmd_len=-1 ;;
+ esac
+ fi
+ ;;
+ sco3.2v5*)
+ lt_cv_sys_max_cmd_len=102400
+ ;;
+ sysv5* | sco5v6* | sysv4.2uw2*)
+ kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
+ if test -n "$kargmax"; then
+ lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[ ]//'`
+ else
+ lt_cv_sys_max_cmd_len=32768
+ fi
+ ;;
+ *)
+ lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
+ if test -n "$lt_cv_sys_max_cmd_len" && \
+ test undefined != "$lt_cv_sys_max_cmd_len"; then
+ lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+ lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+ else
+ # Make teststring a little bigger before we do anything with it.
+ # a 1K string should be a reasonable start.
+ for i in 1 2 3 4 5 6 7 8; do
+ teststring=$teststring$teststring
+ done
+ SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
+ # If test is not a shell built-in, we'll probably end up computing a
+ # maximum length that is only half of the actual maximum length, but
+ # we can't tell.
+ while { test X`env echo "$teststring$teststring" 2>/dev/null` \
+ = "X$teststring$teststring"; } >/dev/null 2>&1 &&
+ test 17 != "$i" # 1/2 MB should be enough
+ do
+ i=`expr $i + 1`
+ teststring=$teststring$teststring
+ done
+ # Only check the string length outside the loop.
+ lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
+ teststring=
+ # Add a significant safety factor because C++ compilers can tack on
+ # massive amounts of additional arguments before passing them to the
+ # linker. It appears as though 1/2 is a usable value.
+ lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
+ fi
+ ;;
+ esac
+
+fi
+
+if test -n "$lt_cv_sys_max_cmd_len"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sys_max_cmd_len" >&5
+$as_echo "$lt_cv_sys_max_cmd_len" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: none" >&5
+$as_echo "none" >&6; }
+fi
+max_cmd_len=$lt_cv_sys_max_cmd_len
+
+
+
+
+
+
+: ${CP="cp -f"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+
+if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+ lt_unset=unset
+else
+ lt_unset=false
+fi
+
+
+
+
+
+# test EBCDIC or ASCII
+case `echo X|tr X '\101'` in
+ A) # ASCII based system
+ # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
+ lt_SP2NL='tr \040 \012'
+ lt_NL2SP='tr \015\012 \040\040'
+ ;;
+ *) # EBCDIC based system
+ lt_SP2NL='tr \100 \n'
+ lt_NL2SP='tr \r\n \100\100'
+ ;;
+esac
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to $host format" >&5
+$as_echo_n "checking how to convert $build file names to $host format... " >&6; }
+if ${lt_cv_to_host_file_cmd+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ case $host in
+ *-*-mingw* )
+ case $build in
+ *-*-mingw* ) # actually msys
+ lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32
+ ;;
+ *-*-cygwin* )
+ lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32
+ ;;
+ * ) # otherwise, assume *nix
+ lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32
+ ;;
+ esac
+ ;;
+ *-*-cygwin* )
+ case $build in
+ *-*-mingw* ) # actually msys
+ lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin
+ ;;
+ *-*-cygwin* )
+ lt_cv_to_host_file_cmd=func_convert_file_noop
+ ;;
+ * ) # otherwise, assume *nix
+ lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin
+ ;;
+ esac
+ ;;
+ * ) # unhandled hosts (and "normal" native builds)
+ lt_cv_to_host_file_cmd=func_convert_file_noop
+ ;;
+esac
+
+fi
+
+to_host_file_cmd=$lt_cv_to_host_file_cmd
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_host_file_cmd" >&5
+$as_echo "$lt_cv_to_host_file_cmd" >&6; }
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to convert $build file names to toolchain format" >&5
+$as_echo_n "checking how to convert $build file names to toolchain format... " >&6; }
+if ${lt_cv_to_tool_file_cmd+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ #assume ordinary cross tools, or native build.
+lt_cv_to_tool_file_cmd=func_convert_file_noop
+case $host in
+ *-*-mingw* )
+ case $build in
+ *-*-mingw* ) # actually msys
+ lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32
+ ;;
+ esac
+ ;;
+esac
+
+fi
+
+to_tool_file_cmd=$lt_cv_to_tool_file_cmd
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_to_tool_file_cmd" >&5
+$as_echo "$lt_cv_to_tool_file_cmd" >&6; }
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $LD option to reload object files" >&5
+$as_echo_n "checking for $LD option to reload object files... " >&6; }
+if ${lt_cv_ld_reload_flag+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_ld_reload_flag='-r'
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_reload_flag" >&5
+$as_echo "$lt_cv_ld_reload_flag" >&6; }
+reload_flag=$lt_cv_ld_reload_flag
+case $reload_flag in
+"" | " "*) ;;
+*) reload_flag=" $reload_flag" ;;
+esac
+reload_cmds='$LD$reload_flag -o $output$reload_objs'
+case $host_os in
+ cygwin* | mingw* | pw32* | cegcc*)
+ if test yes != "$GCC"; then
+ reload_cmds=false
+ fi
+ ;;
+ darwin*)
+ if test yes = "$GCC"; then
+ reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs'
+ else
+ reload_cmds='$LD$reload_flag -o $output$reload_objs'
+ fi
+ ;;
+esac
+
+
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}objdump", so it can be a program name with args.
+set dummy ${ac_tool_prefix}objdump; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OBJDUMP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$OBJDUMP"; then
+ ac_cv_prog_OBJDUMP="$OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_OBJDUMP="${ac_tool_prefix}objdump"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+OBJDUMP=$ac_cv_prog_OBJDUMP
+if test -n "$OBJDUMP"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OBJDUMP" >&5
+$as_echo "$OBJDUMP" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OBJDUMP"; then
+ ac_ct_OBJDUMP=$OBJDUMP
+ # Extract the first word of "objdump", so it can be a program name with args.
+set dummy objdump; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OBJDUMP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_OBJDUMP"; then
+ ac_cv_prog_ac_ct_OBJDUMP="$ac_ct_OBJDUMP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_OBJDUMP="objdump"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OBJDUMP=$ac_cv_prog_ac_ct_OBJDUMP
+if test -n "$ac_ct_OBJDUMP"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OBJDUMP" >&5
+$as_echo "$ac_ct_OBJDUMP" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_OBJDUMP" = x; then
+ OBJDUMP="false"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ OBJDUMP=$ac_ct_OBJDUMP
+ fi
+else
+ OBJDUMP="$ac_cv_prog_OBJDUMP"
+fi
+
+test -z "$OBJDUMP" && OBJDUMP=objdump
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to recognize dependent libraries" >&5
+$as_echo_n "checking how to recognize dependent libraries... " >&6; }
+if ${lt_cv_deplibs_check_method+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_file_magic_cmd='$MAGIC_CMD'
+lt_cv_file_magic_test_file=
+lt_cv_deplibs_check_method='unknown'
+# Need to set the preceding variable on all platforms that support
+# interlibrary dependencies.
+# 'none' -- dependencies not supported.
+# 'unknown' -- same as none, but documents that we really don't know.
+# 'pass_all' -- all dependencies passed with no checks.
+# 'test_compile' -- check by making test program.
+# 'file_magic [[regex]]' -- check by looking for files in library path
+# that responds to the $file_magic_cmd with a given extended regex.
+# If you have 'file' or equivalent on your system and you're not sure
+# whether 'pass_all' will *always* work, you probably want this one.
+
+case $host_os in
+aix[4-9]*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+beos*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+bsdi[45]*)
+ lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib)'
+ lt_cv_file_magic_cmd='/usr/bin/file -L'
+ lt_cv_file_magic_test_file=/shlib/libc.so
+ ;;
+
+cygwin*)
+ # func_win32_libid is a shell function defined in ltmain.sh
+ lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+ lt_cv_file_magic_cmd='func_win32_libid'
+ ;;
+
+mingw* | pw32*)
+ # Base MSYS/MinGW do not provide the 'file' command needed by
+ # func_win32_libid shell function, so use a weaker test based on 'objdump',
+ # unless we find 'file', for example because we are cross-compiling.
+ if ( file / ) >/dev/null 2>&1; then
+ lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+ lt_cv_file_magic_cmd='func_win32_libid'
+ else
+ # Keep this pattern in sync with the one in func_win32_libid.
+ lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)'
+ lt_cv_file_magic_cmd='$OBJDUMP -f'
+ fi
+ ;;
+
+cegcc*)
+ # use the weaker test based on 'objdump'. See mingw*.
+ lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
+ lt_cv_file_magic_cmd='$OBJDUMP -f'
+ ;;
+
+darwin* | rhapsody*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+freebsd* | dragonfly*)
+ if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+ case $host_cpu in
+ i*86 )
+ # Not sure whether the presence of OpenBSD here was a mistake.
+ # Let's accept both of them until this is cleared up.
+ lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[3-9]86 (compact )?demand paged shared library'
+ lt_cv_file_magic_cmd=/usr/bin/file
+ lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
+ ;;
+ esac
+ else
+ lt_cv_deplibs_check_method=pass_all
+ fi
+ ;;
+
+haiku*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+hpux10.20* | hpux11*)
+ lt_cv_file_magic_cmd=/usr/bin/file
+ case $host_cpu in
+ ia64*)
+ lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF-[0-9][0-9]) shared object file - IA64'
+ lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
+ ;;
+ hppa*64*)
+ lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]'
+ lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
+ ;;
+ *)
+ lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|PA-RISC[0-9]\.[0-9]) shared library'
+ lt_cv_file_magic_test_file=/usr/lib/libc.sl
+ ;;
+ esac
+ ;;
+
+interix[3-9]*)
+ # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
+ lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|\.a)$'
+ ;;
+
+irix5* | irix6* | nonstopux*)
+ case $LD in
+ *-32|*"-32 ") libmagic=32-bit;;
+ *-n32|*"-n32 ") libmagic=N32;;
+ *-64|*"-64 ") libmagic=64-bit;;
+ *) libmagic=never-match;;
+ esac
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+netbsd*)
+ if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+ lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
+ else
+ lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so|_pic\.a)$'
+ fi
+ ;;
+
+newos6*)
+ lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (executable|dynamic lib)'
+ lt_cv_file_magic_cmd=/usr/bin/file
+ lt_cv_file_magic_test_file=/usr/lib/libnls.so
+ ;;
+
+*nto* | *qnx*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+openbsd* | bitrig*)
+ if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+ lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|\.so|_pic\.a)$'
+ else
+ lt_cv_deplibs_check_method='match_pattern /lib[^/]+(\.so\.[0-9]+\.[0-9]+|_pic\.a)$'
+ fi
+ ;;
+
+osf3* | osf4* | osf5*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+rdos*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+solaris*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+sysv4 | sysv4.3*)
+ case $host_vendor in
+ motorola)
+ lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [ML]SB (shared object|dynamic lib) M[0-9][0-9]* Version [0-9]'
+ lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
+ ;;
+ ncr)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+ sequent)
+ lt_cv_file_magic_cmd='/bin/file'
+ lt_cv_deplibs_check_method='file_magic ELF [0-9][0-9]*-bit [LM]SB (shared object|dynamic lib )'
+ ;;
+ sni)
+ lt_cv_file_magic_cmd='/bin/file'
+ lt_cv_deplibs_check_method="file_magic ELF [0-9][0-9]*-bit [LM]SB dynamic lib"
+ lt_cv_file_magic_test_file=/lib/libc.so
+ ;;
+ siemens)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+ pc)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+ esac
+ ;;
+
+tpf*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+os2*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+esac
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_deplibs_check_method" >&5
+$as_echo "$lt_cv_deplibs_check_method" >&6; }
+
+file_magic_glob=
+want_nocaseglob=no
+if test "$build" = "$host"; then
+ case $host_os in
+ mingw* | pw32*)
+ if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then
+ want_nocaseglob=yes
+ else
+ file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[\1]\/[\1]\/g;/g"`
+ fi
+ ;;
+ esac
+fi
+
+file_magic_cmd=$lt_cv_file_magic_cmd
+deplibs_check_method=$lt_cv_deplibs_check_method
+test -z "$deplibs_check_method" && deplibs_check_method=unknown
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}dlltool", so it can be a program name with args.
+set dummy ${ac_tool_prefix}dlltool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DLLTOOL+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$DLLTOOL"; then
+ ac_cv_prog_DLLTOOL="$DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_DLLTOOL="${ac_tool_prefix}dlltool"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+DLLTOOL=$ac_cv_prog_DLLTOOL
+if test -n "$DLLTOOL"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DLLTOOL" >&5
+$as_echo "$DLLTOOL" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_DLLTOOL"; then
+ ac_ct_DLLTOOL=$DLLTOOL
+ # Extract the first word of "dlltool", so it can be a program name with args.
+set dummy dlltool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DLLTOOL+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_DLLTOOL"; then
+ ac_cv_prog_ac_ct_DLLTOOL="$ac_ct_DLLTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_DLLTOOL="dlltool"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DLLTOOL=$ac_cv_prog_ac_ct_DLLTOOL
+if test -n "$ac_ct_DLLTOOL"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DLLTOOL" >&5
+$as_echo "$ac_ct_DLLTOOL" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_DLLTOOL" = x; then
+ DLLTOOL="false"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ DLLTOOL=$ac_ct_DLLTOOL
+ fi
+else
+ DLLTOOL="$ac_cv_prog_DLLTOOL"
+fi
+
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to associate runtime and link libraries" >&5
+$as_echo_n "checking how to associate runtime and link libraries... " >&6; }
+if ${lt_cv_sharedlib_from_linklib_cmd+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_sharedlib_from_linklib_cmd='unknown'
+
+case $host_os in
+cygwin* | mingw* | pw32* | cegcc*)
+ # two different shell functions defined in ltmain.sh;
+ # decide which one to use based on capabilities of $DLLTOOL
+ case `$DLLTOOL --help 2>&1` in
+ *--identify-strict*)
+ lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
+ ;;
+ *)
+ lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback
+ ;;
+ esac
+ ;;
+*)
+ # fallback: assume linklib IS sharedlib
+ lt_cv_sharedlib_from_linklib_cmd=$ECHO
+ ;;
+esac
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_sharedlib_from_linklib_cmd" >&5
+$as_echo "$lt_cv_sharedlib_from_linklib_cmd" >&6; }
+sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd
+test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+ for ac_prog in ar
+ do
+ # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_AR+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$AR"; then
+ ac_cv_prog_AR="$AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_AR="$ac_tool_prefix$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+AR=$ac_cv_prog_AR
+if test -n "$AR"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $AR" >&5
+$as_echo "$AR" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ test -n "$AR" && break
+ done
+fi
+if test -z "$AR"; then
+ ac_ct_AR=$AR
+ for ac_prog in ar
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_AR+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_AR"; then
+ ac_cv_prog_ac_ct_AR="$ac_ct_AR" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_AR="$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_AR=$ac_cv_prog_ac_ct_AR
+if test -n "$ac_ct_AR"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_AR" >&5
+$as_echo "$ac_ct_AR" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ test -n "$ac_ct_AR" && break
+done
+
+ if test "x$ac_ct_AR" = x; then
+ AR="false"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ AR=$ac_ct_AR
+ fi
+fi
+
+: ${AR=ar}
+: ${AR_FLAGS=cru}
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for archiver @FILE support" >&5
+$as_echo_n "checking for archiver @FILE support... " >&6; }
+if ${lt_cv_ar_at_file+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_ar_at_file=no
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ echo conftest.$ac_objext > conftest.lst
+ lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&5'
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
+ (eval $lt_ar_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }
+ if test 0 -eq "$ac_status"; then
+ # Ensure the archiver fails upon bogus file names.
+ rm -f conftest.$ac_objext libconftest.a
+ { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$lt_ar_try\""; } >&5
+ (eval $lt_ar_try) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }
+ if test 0 -ne "$ac_status"; then
+ lt_cv_ar_at_file=@
+ fi
+ fi
+ rm -f conftest.* libconftest.a
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ar_at_file" >&5
+$as_echo "$lt_cv_ar_at_file" >&6; }
+
+if test no = "$lt_cv_ar_at_file"; then
+ archiver_list_spec=
+else
+ archiver_list_spec=$lt_cv_ar_at_file
+fi
+
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}strip", so it can be a program name with args.
+set dummy ${ac_tool_prefix}strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_STRIP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$STRIP"; then
+ ac_cv_prog_STRIP="$STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_STRIP="${ac_tool_prefix}strip"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+STRIP=$ac_cv_prog_STRIP
+if test -n "$STRIP"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $STRIP" >&5
+$as_echo "$STRIP" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_STRIP"; then
+ ac_ct_STRIP=$STRIP
+ # Extract the first word of "strip", so it can be a program name with args.
+set dummy strip; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_STRIP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_STRIP"; then
+ ac_cv_prog_ac_ct_STRIP="$ac_ct_STRIP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_STRIP="strip"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_STRIP=$ac_cv_prog_ac_ct_STRIP
+if test -n "$ac_ct_STRIP"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_STRIP" >&5
+$as_echo "$ac_ct_STRIP" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_STRIP" = x; then
+ STRIP=":"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ STRIP=$ac_ct_STRIP
+ fi
+else
+ STRIP="$ac_cv_prog_STRIP"
+fi
+
+test -z "$STRIP" && STRIP=:
+
+
+
+
+
+
+if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}ranlib", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ranlib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_RANLIB+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$RANLIB"; then
+ ac_cv_prog_RANLIB="$RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_RANLIB="${ac_tool_prefix}ranlib"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+RANLIB=$ac_cv_prog_RANLIB
+if test -n "$RANLIB"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RANLIB" >&5
+$as_echo "$RANLIB" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_RANLIB"; then
+ ac_ct_RANLIB=$RANLIB
+ # Extract the first word of "ranlib", so it can be a program name with args.
+set dummy ranlib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_RANLIB+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_RANLIB"; then
+ ac_cv_prog_ac_ct_RANLIB="$ac_ct_RANLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_RANLIB="ranlib"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_RANLIB=$ac_cv_prog_ac_ct_RANLIB
+if test -n "$ac_ct_RANLIB"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_RANLIB" >&5
+$as_echo "$ac_ct_RANLIB" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_RANLIB" = x; then
+ RANLIB=":"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ RANLIB=$ac_ct_RANLIB
+ fi
+else
+ RANLIB="$ac_cv_prog_RANLIB"
+fi
+
+test -z "$RANLIB" && RANLIB=:
+
+
+
+
+
+
+# Determine commands to create old-style static archives.
+old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
+old_postinstall_cmds='chmod 644 $oldlib'
+old_postuninstall_cmds=
+
+if test -n "$RANLIB"; then
+ case $host_os in
+ bitrig* | openbsd*)
+ old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib"
+ ;;
+ *)
+ old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib"
+ ;;
+ esac
+ old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib"
+fi
+
+case $host_os in
+ darwin*)
+ lock_old_archive_extraction=yes ;;
+ *)
+ lock_old_archive_extraction=no ;;
+esac
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking command to parse $NM output from $compiler object" >&5
+$as_echo_n "checking command to parse $NM output from $compiler object... " >&6; }
+if ${lt_cv_sys_global_symbol_pipe+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+
+# These are sane defaults that work on at least a few old systems.
+# [They come from Ultrix. What could be older than Ultrix?!! ;)]
+
+# Character class describing NM global symbol codes.
+symcode='[BCDEGRST]'
+
+# Regexp to match symbols that can be accessed directly from C.
+sympat='\([_A-Za-z][_A-Za-z0-9]*\)'
+
+# Define system-specific variables.
+case $host_os in
+aix*)
+ symcode='[BCDT]'
+ ;;
+cygwin* | mingw* | pw32* | cegcc*)
+ symcode='[ABCDGISTW]'
+ ;;
+hpux*)
+ if test ia64 = "$host_cpu"; then
+ symcode='[ABCDEGRST]'
+ fi
+ ;;
+irix* | nonstopux*)
+ symcode='[BCDEGRST]'
+ ;;
+osf*)
+ symcode='[BCDEGQRST]'
+ ;;
+solaris*)
+ symcode='[BDRT]'
+ ;;
+sco3.2v5*)
+ symcode='[DT]'
+ ;;
+sysv4.2uw2*)
+ symcode='[DT]'
+ ;;
+sysv5* | sco5v6* | unixware* | OpenUNIX*)
+ symcode='[ABDT]'
+ ;;
+sysv4)
+ symcode='[DFNSTU]'
+ ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+case `$NM -V 2>&1` in
+*GNU* | *'with BFD'*)
+ symcode='[ABCDGIRSTW]' ;;
+esac
+
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+ # Gets list of data symbols to import.
+ lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'"
+ # Adjust the below global symbol transforms to fixup imported variables.
+ lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'"
+ lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'"
+ lt_c_name_lib_hook="\
+ -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\
+ -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'"
+else
+ # Disable hooks by default.
+ lt_cv_sys_global_symbol_to_import=
+ lt_cdecl_hook=
+ lt_c_name_hook=
+ lt_c_name_lib_hook=
+fi
+
+# Transform an extracted symbol line into a proper C declaration.
+# Some systems (esp. on ia64) link data and code symbols differently,
+# so use this general approach.
+lt_cv_sys_global_symbol_to_cdecl="sed -n"\
+$lt_cdecl_hook\
+" -e 's/^T .* \(.*\)$/extern int \1();/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'"
+
+# Transform an extracted symbol line into symbol name and symbol address
+lt_cv_sys_global_symbol_to_c_name_address="sed -n"\
+$lt_c_name_hook\
+" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'"
+
+# Transform an extracted symbol line into symbol name with lib prefix and
+# symbol address.
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\
+$lt_c_name_lib_hook\
+" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'"
+
+# Handle CRLF in mingw tool chain
+opt_cr=
+case $build_os in
+mingw*)
+ opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
+ ;;
+esac
+
+# Try without a prefix underscore, then with it.
+for ac_symprfx in "" "_"; do
+
+ # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
+ symxfrm="\\1 $ac_symprfx\\2 \\2"
+
+ # Write the raw and C identifiers.
+ if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+ # Fake it for dumpbin and say T for any non-static function,
+ # D for any global variable and I for any imported variable.
+ # Also find C++ and __fastcall symbols from MSVC++,
+ # which start with @ or ?.
+ lt_cv_sys_global_symbol_pipe="$AWK '"\
+" {last_section=section; section=\$ 3};"\
+" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\
+" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
+" /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\
+" /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\
+" /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\
+" \$ 0!~/External *\|/{next};"\
+" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
+" {if(hide[section]) next};"\
+" {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\
+" {split(\$ 0,a,/\||\r/); split(a[2],s)};"\
+" s[1]~/^[@?]/{print f,s[1],s[1]; next};"\
+" s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\
+" ' prfx=^$ac_symprfx"
+ else
+ lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[ ]\($symcode$symcode*\)[ ][ ]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
+ fi
+ lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'"
+
+ # Check to see that the pipe works correctly.
+ pipe_works=no
+
+ rm -f conftest*
+ cat > conftest.$ac_ext <<_LT_EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(void);
+void nm_test_func(void){}
+#ifdef __cplusplus
+}
+#endif
+int main(){nm_test_var='a';nm_test_func();return(0);}
+_LT_EOF
+
+ if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ # Now try to grab the symbols.
+ nlist=conftest.nm
+ if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist\""; } >&5
+ (eval $NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; } && test -s "$nlist"; then
+ # Try sorting and uniquifying the output.
+ if sort "$nlist" | uniq > "$nlist"T; then
+ mv -f "$nlist"T "$nlist"
+ else
+ rm -f "$nlist"T
+ fi
+
+ # Make sure that we snagged all the symbols we need.
+ if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
+ if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
+ cat <<_LT_EOF > conftest.$ac_ext
+/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */
+#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
+/* DATA imports from DLLs on WIN32 can't be const, because runtime
+ relocations are performed -- see ld's documentation on pseudo-relocs. */
+# define LT_DLSYM_CONST
+#elif defined __osf__
+/* This system does not cope well with relocations in const data. */
+# define LT_DLSYM_CONST
+#else
+# define LT_DLSYM_CONST const
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+_LT_EOF
+ # Now generate the symbol file.
+ eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
+
+ cat <<_LT_EOF >> conftest.$ac_ext
+
+/* The mapping between symbol names and symbols. */
+LT_DLSYM_CONST struct {
+ const char *name;
+ void *address;
+}
+lt__PROGRAM__LTX_preloaded_symbols[] =
+{
+ { "@PROGRAM@", (void *) 0 },
+_LT_EOF
+ $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
+ cat <<\_LT_EOF >> conftest.$ac_ext
+ {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+ return lt__PROGRAM__LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+_LT_EOF
+ # Now try linking the two files.
+ mv conftest.$ac_objext conftstm.$ac_objext
+ lt_globsym_save_LIBS=$LIBS
+ lt_globsym_save_CFLAGS=$CFLAGS
+ LIBS=conftstm.$ac_objext
+ CFLAGS="$CFLAGS$lt_prog_compiler_no_builtin_flag"
+ if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; } && test -s conftest$ac_exeext; then
+ pipe_works=yes
+ fi
+ LIBS=$lt_globsym_save_LIBS
+ CFLAGS=$lt_globsym_save_CFLAGS
+ else
+ echo "cannot find nm_test_func in $nlist" >&5
+ fi
+ else
+ echo "cannot find nm_test_var in $nlist" >&5
+ fi
+ else
+ echo "cannot run $lt_cv_sys_global_symbol_pipe" >&5
+ fi
+ else
+ echo "$progname: failed program was:" >&5
+ cat conftest.$ac_ext >&5
+ fi
+ rm -rf conftest* conftst*
+
+ # Do not use the global_symbol_pipe unless it works.
+ if test yes = "$pipe_works"; then
+ break
+ else
+ lt_cv_sys_global_symbol_pipe=
+ fi
+done
+
+fi
+
+if test -z "$lt_cv_sys_global_symbol_pipe"; then
+ lt_cv_sys_global_symbol_to_cdecl=
+fi
+if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: failed" >&5
+$as_echo "failed" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: ok" >&5
+$as_echo "ok" >&6; }
+fi
+
+# Response file support.
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+ nm_file_list_spec='@'
+elif $NM --help 2>/dev/null | grep '[@]FILE' >/dev/null; then
+ nm_file_list_spec='@'
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for sysroot" >&5
+$as_echo_n "checking for sysroot... " >&6; }
+
+# Check whether --with-sysroot was given.
+if test "${with_sysroot+set}" = set; then :
+ withval=$with_sysroot;
+else
+ with_sysroot=no
+fi
+
+
+lt_sysroot=
+case $with_sysroot in #(
+ yes)
+ if test yes = "$GCC"; then
+ lt_sysroot=`$CC --print-sysroot 2>/dev/null`
+ fi
+ ;; #(
+ /*)
+ lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"`
+ ;; #(
+ no|'')
+ ;; #(
+ *)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_sysroot" >&5
+$as_echo "$with_sysroot" >&6; }
+ as_fn_error $? "The sysroot must be an absolute path." "$LINENO" 5
+ ;;
+esac
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: ${lt_sysroot:-no}" >&5
+$as_echo "${lt_sysroot:-no}" >&6; }
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a working dd" >&5
+$as_echo_n "checking for a working dd... " >&6; }
+if ${ac_cv_path_lt_DD+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ printf 0123456789abcdef0123456789abcdef >conftest.i
+cat conftest.i conftest.i >conftest2.i
+: ${lt_DD:=$DD}
+if test -z "$lt_DD"; then
+ ac_path_lt_DD_found=false
+ # Loop through the user's path and test for each of PROGNAME-LIST
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_prog in dd; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ ac_path_lt_DD="$as_dir/$ac_prog$ac_exec_ext"
+ as_fn_executable_p "$ac_path_lt_DD" || continue
+if "$ac_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then
+ cmp -s conftest.i conftest.out \
+ && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=:
+fi
+ $ac_path_lt_DD_found && break 3
+ done
+ done
+ done
+IFS=$as_save_IFS
+ if test -z "$ac_cv_path_lt_DD"; then
+ :
+ fi
+else
+ ac_cv_path_lt_DD=$lt_DD
+fi
+
+rm -f conftest.i conftest2.i conftest.out
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_lt_DD" >&5
+$as_echo "$ac_cv_path_lt_DD" >&6; }
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to truncate binary pipes" >&5
+$as_echo_n "checking how to truncate binary pipes... " >&6; }
+if ${lt_cv_truncate_bin+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ printf 0123456789abcdef0123456789abcdef >conftest.i
+cat conftest.i conftest.i >conftest2.i
+lt_cv_truncate_bin=
+if "$ac_cv_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then
+ cmp -s conftest.i conftest.out \
+ && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1"
+fi
+rm -f conftest.i conftest2.i conftest.out
+test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q"
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_truncate_bin" >&5
+$as_echo "$lt_cv_truncate_bin" >&6; }
+
+
+
+
+
+
+
+# Calculate cc_basename. Skip known compiler wrappers and cross-prefix.
+func_cc_basename ()
+{
+ for cc_temp in $*""; do
+ case $cc_temp in
+ compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+ distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+ \-*) ;;
+ *) break;;
+ esac
+ done
+ func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+}
+
+# Check whether --enable-libtool-lock was given.
+if test "${enable_libtool_lock+set}" = set; then :
+ enableval=$enable_libtool_lock;
+fi
+
+test no = "$enable_libtool_lock" || enable_libtool_lock=yes
+
+# Some flags need to be propagated to the compiler or linker for good
+# libtool support.
+case $host in
+ia64-*-hpux*)
+ # Find out what ABI is being produced by ac_compile, and set mode
+ # options accordingly.
+ echo 'int i;' > conftest.$ac_ext
+ if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ case `/usr/bin/file conftest.$ac_objext` in
+ *ELF-32*)
+ HPUX_IA64_MODE=32
+ ;;
+ *ELF-64*)
+ HPUX_IA64_MODE=64
+ ;;
+ esac
+ fi
+ rm -rf conftest*
+ ;;
+*-*-irix6*)
+ # Find out what ABI is being produced by ac_compile, and set linker
+ # options accordingly.
+ echo '#line '$LINENO' "configure"' > conftest.$ac_ext
+ if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ if test yes = "$lt_cv_prog_gnu_ld"; then
+ case `/usr/bin/file conftest.$ac_objext` in
+ *32-bit*)
+ LD="${LD-ld} -melf32bsmip"
+ ;;
+ *N32*)
+ LD="${LD-ld} -melf32bmipn32"
+ ;;
+ *64-bit*)
+ LD="${LD-ld} -melf64bmip"
+ ;;
+ esac
+ else
+ case `/usr/bin/file conftest.$ac_objext` in
+ *32-bit*)
+ LD="${LD-ld} -32"
+ ;;
+ *N32*)
+ LD="${LD-ld} -n32"
+ ;;
+ *64-bit*)
+ LD="${LD-ld} -64"
+ ;;
+ esac
+ fi
+ fi
+ rm -rf conftest*
+ ;;
+
+mips64*-*linux*)
+ # Find out what ABI is being produced by ac_compile, and set linker
+ # options accordingly.
+ echo '#line '$LINENO' "configure"' > conftest.$ac_ext
+ if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ emul=elf
+ case `/usr/bin/file conftest.$ac_objext` in
+ *32-bit*)
+ emul="${emul}32"
+ ;;
+ *64-bit*)
+ emul="${emul}64"
+ ;;
+ esac
+ case `/usr/bin/file conftest.$ac_objext` in
+ *MSB*)
+ emul="${emul}btsmip"
+ ;;
+ *LSB*)
+ emul="${emul}ltsmip"
+ ;;
+ esac
+ case `/usr/bin/file conftest.$ac_objext` in
+ *N32*)
+ emul="${emul}n32"
+ ;;
+ esac
+ LD="${LD-ld} -m $emul"
+ fi
+ rm -rf conftest*
+ ;;
+
+x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
+s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
+ # Find out what ABI is being produced by ac_compile, and set linker
+ # options accordingly. Note that the listed cases only cover the
+ # situations where additional linker options are needed (such as when
+ # doing 32-bit compilation for a host where ld defaults to 64-bit, or
+ # vice versa); the common cases where no linker options are needed do
+ # not appear in the list.
+ echo 'int i;' > conftest.$ac_ext
+ if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ case `/usr/bin/file conftest.o` in
+ *32-bit*)
+ case $host in
+ x86_64-*kfreebsd*-gnu)
+ LD="${LD-ld} -m elf_i386_fbsd"
+ ;;
+ x86_64-*linux*)
+ case `/usr/bin/file conftest.o` in
+ *x86-64*)
+ LD="${LD-ld} -m elf32_x86_64"
+ ;;
+ *)
+ LD="${LD-ld} -m elf_i386"
+ ;;
+ esac
+ ;;
+ powerpc64le-*linux*)
+ LD="${LD-ld} -m elf32lppclinux"
+ ;;
+ powerpc64-*linux*)
+ LD="${LD-ld} -m elf32ppclinux"
+ ;;
+ s390x-*linux*)
+ LD="${LD-ld} -m elf_s390"
+ ;;
+ sparc64-*linux*)
+ LD="${LD-ld} -m elf32_sparc"
+ ;;
+ esac
+ ;;
+ *64-bit*)
+ case $host in
+ x86_64-*kfreebsd*-gnu)
+ LD="${LD-ld} -m elf_x86_64_fbsd"
+ ;;
+ x86_64-*linux*)
+ LD="${LD-ld} -m elf_x86_64"
+ ;;
+ powerpcle-*linux*)
+ LD="${LD-ld} -m elf64lppc"
+ ;;
+ powerpc-*linux*)
+ LD="${LD-ld} -m elf64ppc"
+ ;;
+ s390*-*linux*|s390*-*tpf*)
+ LD="${LD-ld} -m elf64_s390"
+ ;;
+ sparc*-*linux*)
+ LD="${LD-ld} -m elf64_sparc"
+ ;;
+ esac
+ ;;
+ esac
+ fi
+ rm -rf conftest*
+ ;;
+
+*-*-sco3.2v5*)
+ # On SCO OpenServer 5, we need -belf to get full-featured binaries.
+ SAVE_CFLAGS=$CFLAGS
+ CFLAGS="$CFLAGS -belf"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the C compiler needs -belf" >&5
+$as_echo_n "checking whether the C compiler needs -belf... " >&6; }
+if ${lt_cv_cc_needs_belf+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ lt_cv_cc_needs_belf=yes
+else
+ lt_cv_cc_needs_belf=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_cc_needs_belf" >&5
+$as_echo "$lt_cv_cc_needs_belf" >&6; }
+ if test yes != "$lt_cv_cc_needs_belf"; then
+ # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
+ CFLAGS=$SAVE_CFLAGS
+ fi
+ ;;
+*-*solaris*)
+ # Find out what ABI is being produced by ac_compile, and set linker
+ # options accordingly.
+ echo 'int i;' > conftest.$ac_ext
+ if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ case `/usr/bin/file conftest.o` in
+ *64-bit*)
+ case $lt_cv_prog_gnu_ld in
+ yes*)
+ case $host in
+ i?86-*-solaris*|x86_64-*-solaris*)
+ LD="${LD-ld} -m elf_x86_64"
+ ;;
+ sparc*-*-solaris*)
+ LD="${LD-ld} -m elf64_sparc"
+ ;;
+ esac
+ # GNU ld 2.21 introduced _sol2 emulations. Use them if available.
+ if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
+ LD=${LD-ld}_sol2
+ fi
+ ;;
+ *)
+ if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
+ LD="${LD-ld} -64"
+ fi
+ ;;
+ esac
+ ;;
+ esac
+ fi
+ rm -rf conftest*
+ ;;
+esac
+
+need_locks=$enable_libtool_lock
+
+if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}mt", so it can be a program name with args.
+set dummy ${ac_tool_prefix}mt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_MANIFEST_TOOL+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$MANIFEST_TOOL"; then
+ ac_cv_prog_MANIFEST_TOOL="$MANIFEST_TOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_MANIFEST_TOOL="${ac_tool_prefix}mt"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+MANIFEST_TOOL=$ac_cv_prog_MANIFEST_TOOL
+if test -n "$MANIFEST_TOOL"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MANIFEST_TOOL" >&5
+$as_echo "$MANIFEST_TOOL" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_MANIFEST_TOOL"; then
+ ac_ct_MANIFEST_TOOL=$MANIFEST_TOOL
+ # Extract the first word of "mt", so it can be a program name with args.
+set dummy mt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_MANIFEST_TOOL+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_MANIFEST_TOOL"; then
+ ac_cv_prog_ac_ct_MANIFEST_TOOL="$ac_ct_MANIFEST_TOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_MANIFEST_TOOL="mt"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_MANIFEST_TOOL=$ac_cv_prog_ac_ct_MANIFEST_TOOL
+if test -n "$ac_ct_MANIFEST_TOOL"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_MANIFEST_TOOL" >&5
+$as_echo "$ac_ct_MANIFEST_TOOL" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_MANIFEST_TOOL" = x; then
+ MANIFEST_TOOL=":"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ MANIFEST_TOOL=$ac_ct_MANIFEST_TOOL
+ fi
+else
+ MANIFEST_TOOL="$ac_cv_prog_MANIFEST_TOOL"
+fi
+
+test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $MANIFEST_TOOL is a manifest tool" >&5
+$as_echo_n "checking if $MANIFEST_TOOL is a manifest tool... " >&6; }
+if ${lt_cv_path_mainfest_tool+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_path_mainfest_tool=no
+ echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&5
+ $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out
+ cat conftest.err >&5
+ if $GREP 'Manifest Tool' conftest.out > /dev/null; then
+ lt_cv_path_mainfest_tool=yes
+ fi
+ rm -f conftest*
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_path_mainfest_tool" >&5
+$as_echo "$lt_cv_path_mainfest_tool" >&6; }
+if test yes != "$lt_cv_path_mainfest_tool"; then
+ MANIFEST_TOOL=:
+fi
+
+
+
+
+
+
+ case $host_os in
+ rhapsody* | darwin*)
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}dsymutil", so it can be a program name with args.
+set dummy ${ac_tool_prefix}dsymutil; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_DSYMUTIL+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$DSYMUTIL"; then
+ ac_cv_prog_DSYMUTIL="$DSYMUTIL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_DSYMUTIL="${ac_tool_prefix}dsymutil"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+DSYMUTIL=$ac_cv_prog_DSYMUTIL
+if test -n "$DSYMUTIL"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $DSYMUTIL" >&5
+$as_echo "$DSYMUTIL" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_DSYMUTIL"; then
+ ac_ct_DSYMUTIL=$DSYMUTIL
+ # Extract the first word of "dsymutil", so it can be a program name with args.
+set dummy dsymutil; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_DSYMUTIL+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_DSYMUTIL"; then
+ ac_cv_prog_ac_ct_DSYMUTIL="$ac_ct_DSYMUTIL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_DSYMUTIL="dsymutil"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_DSYMUTIL=$ac_cv_prog_ac_ct_DSYMUTIL
+if test -n "$ac_ct_DSYMUTIL"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_DSYMUTIL" >&5
+$as_echo "$ac_ct_DSYMUTIL" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_DSYMUTIL" = x; then
+ DSYMUTIL=":"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ DSYMUTIL=$ac_ct_DSYMUTIL
+ fi
+else
+ DSYMUTIL="$ac_cv_prog_DSYMUTIL"
+fi
+
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}nmedit", so it can be a program name with args.
+set dummy ${ac_tool_prefix}nmedit; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_NMEDIT+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$NMEDIT"; then
+ ac_cv_prog_NMEDIT="$NMEDIT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_NMEDIT="${ac_tool_prefix}nmedit"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+NMEDIT=$ac_cv_prog_NMEDIT
+if test -n "$NMEDIT"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $NMEDIT" >&5
+$as_echo "$NMEDIT" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_NMEDIT"; then
+ ac_ct_NMEDIT=$NMEDIT
+ # Extract the first word of "nmedit", so it can be a program name with args.
+set dummy nmedit; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_NMEDIT+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_NMEDIT"; then
+ ac_cv_prog_ac_ct_NMEDIT="$ac_ct_NMEDIT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_NMEDIT="nmedit"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_NMEDIT=$ac_cv_prog_ac_ct_NMEDIT
+if test -n "$ac_ct_NMEDIT"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_NMEDIT" >&5
+$as_echo "$ac_ct_NMEDIT" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_NMEDIT" = x; then
+ NMEDIT=":"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ NMEDIT=$ac_ct_NMEDIT
+ fi
+else
+ NMEDIT="$ac_cv_prog_NMEDIT"
+fi
+
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}lipo", so it can be a program name with args.
+set dummy ${ac_tool_prefix}lipo; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_LIPO+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$LIPO"; then
+ ac_cv_prog_LIPO="$LIPO" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_LIPO="${ac_tool_prefix}lipo"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+LIPO=$ac_cv_prog_LIPO
+if test -n "$LIPO"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LIPO" >&5
+$as_echo "$LIPO" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_LIPO"; then
+ ac_ct_LIPO=$LIPO
+ # Extract the first word of "lipo", so it can be a program name with args.
+set dummy lipo; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_LIPO+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_LIPO"; then
+ ac_cv_prog_ac_ct_LIPO="$ac_ct_LIPO" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_LIPO="lipo"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_LIPO=$ac_cv_prog_ac_ct_LIPO
+if test -n "$ac_ct_LIPO"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_LIPO" >&5
+$as_echo "$ac_ct_LIPO" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_LIPO" = x; then
+ LIPO=":"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ LIPO=$ac_ct_LIPO
+ fi
+else
+ LIPO="$ac_cv_prog_LIPO"
+fi
+
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}otool", so it can be a program name with args.
+set dummy ${ac_tool_prefix}otool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OTOOL+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$OTOOL"; then
+ ac_cv_prog_OTOOL="$OTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_OTOOL="${ac_tool_prefix}otool"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+OTOOL=$ac_cv_prog_OTOOL
+if test -n "$OTOOL"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL" >&5
+$as_echo "$OTOOL" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OTOOL"; then
+ ac_ct_OTOOL=$OTOOL
+ # Extract the first word of "otool", so it can be a program name with args.
+set dummy otool; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OTOOL+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_OTOOL"; then
+ ac_cv_prog_ac_ct_OTOOL="$ac_ct_OTOOL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_OTOOL="otool"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OTOOL=$ac_cv_prog_ac_ct_OTOOL
+if test -n "$ac_ct_OTOOL"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL" >&5
+$as_echo "$ac_ct_OTOOL" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_OTOOL" = x; then
+ OTOOL=":"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ OTOOL=$ac_ct_OTOOL
+ fi
+else
+ OTOOL="$ac_cv_prog_OTOOL"
+fi
+
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}otool64", so it can be a program name with args.
+set dummy ${ac_tool_prefix}otool64; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OTOOL64+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$OTOOL64"; then
+ ac_cv_prog_OTOOL64="$OTOOL64" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_OTOOL64="${ac_tool_prefix}otool64"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+OTOOL64=$ac_cv_prog_OTOOL64
+if test -n "$OTOOL64"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OTOOL64" >&5
+$as_echo "$OTOOL64" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OTOOL64"; then
+ ac_ct_OTOOL64=$OTOOL64
+ # Extract the first word of "otool64", so it can be a program name with args.
+set dummy otool64; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OTOOL64+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_OTOOL64"; then
+ ac_cv_prog_ac_ct_OTOOL64="$ac_ct_OTOOL64" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_OTOOL64="otool64"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OTOOL64=$ac_cv_prog_ac_ct_OTOOL64
+if test -n "$ac_ct_OTOOL64"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OTOOL64" >&5
+$as_echo "$ac_ct_OTOOL64" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_OTOOL64" = x; then
+ OTOOL64=":"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ OTOOL64=$ac_ct_OTOOL64
+ fi
+else
+ OTOOL64="$ac_cv_prog_OTOOL64"
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -single_module linker flag" >&5
+$as_echo_n "checking for -single_module linker flag... " >&6; }
+if ${lt_cv_apple_cc_single_mod+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_apple_cc_single_mod=no
+ if test -z "$LT_MULTI_MODULE"; then
+ # By default we will add the -single_module flag. You can override
+ # by either setting the environment variable LT_MULTI_MODULE
+ # non-empty at configure time, or by adding -multi_module to the
+ # link flags.
+ rm -rf libconftest.dylib*
+ echo "int foo(void){return 1;}" > conftest.c
+ echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+-dynamiclib -Wl,-single_module conftest.c" >&5
+ $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+ -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
+ _lt_result=$?
+ # If there is a non-empty error log, and "single_module"
+ # appears in it, assume the flag caused a linker warning
+ if test -s conftest.err && $GREP single_module conftest.err; then
+ cat conftest.err >&5
+ # Otherwise, if the output was created with a 0 exit code from
+ # the compiler, it worked.
+ elif test -f libconftest.dylib && test 0 = "$_lt_result"; then
+ lt_cv_apple_cc_single_mod=yes
+ else
+ cat conftest.err >&5
+ fi
+ rm -rf libconftest.dylib*
+ rm -f conftest.*
+ fi
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_apple_cc_single_mod" >&5
+$as_echo "$lt_cv_apple_cc_single_mod" >&6; }
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -exported_symbols_list linker flag" >&5
+$as_echo_n "checking for -exported_symbols_list linker flag... " >&6; }
+if ${lt_cv_ld_exported_symbols_list+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_ld_exported_symbols_list=no
+ save_LDFLAGS=$LDFLAGS
+ echo "_main" > conftest.sym
+ LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ lt_cv_ld_exported_symbols_list=yes
+else
+ lt_cv_ld_exported_symbols_list=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ LDFLAGS=$save_LDFLAGS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_exported_symbols_list" >&5
+$as_echo "$lt_cv_ld_exported_symbols_list" >&6; }
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for -force_load linker flag" >&5
+$as_echo_n "checking for -force_load linker flag... " >&6; }
+if ${lt_cv_ld_force_load+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_ld_force_load=no
+ cat > conftest.c << _LT_EOF
+int forced_loaded() { return 2;}
+_LT_EOF
+ echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&5
+ $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&5
+ echo "$AR cru libconftest.a conftest.o" >&5
+ $AR cru libconftest.a conftest.o 2>&5
+ echo "$RANLIB libconftest.a" >&5
+ $RANLIB libconftest.a 2>&5
+ cat > conftest.c << _LT_EOF
+int main() { return 0;}
+_LT_EOF
+ echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&5
+ $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
+ _lt_result=$?
+ if test -s conftest.err && $GREP force_load conftest.err; then
+ cat conftest.err >&5
+ elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then
+ lt_cv_ld_force_load=yes
+ else
+ cat conftest.err >&5
+ fi
+ rm -f conftest.err libconftest.a conftest conftest.c
+ rm -rf conftest.dSYM
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_ld_force_load" >&5
+$as_echo "$lt_cv_ld_force_load" >&6; }
+ case $host_os in
+ rhapsody* | darwin1.[012])
+ _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;;
+ darwin1.*)
+ _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
+ darwin*) # darwin 5.x on
+ # if running on 10.5 or later, the deployment target defaults
+ # to the OS version, if on x86, and 10.4, the deployment
+ # target defaults to 10.4. Don't you love it?
+ case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+ 10.0,*86*-darwin8*|10.0,*-darwin[91]*)
+ _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+ 10.[012][,.]*)
+ _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
+ 10.*)
+ _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+ esac
+ ;;
+ esac
+ if test yes = "$lt_cv_apple_cc_single_mod"; then
+ _lt_dar_single_mod='$single_module'
+ fi
+ if test yes = "$lt_cv_ld_exported_symbols_list"; then
+ _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym'
+ else
+ _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib'
+ fi
+ if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then
+ _lt_dsymutil='~$DSYMUTIL $lib || :'
+ else
+ _lt_dsymutil=
+ fi
+ ;;
+ esac
+
+# func_munge_path_list VARIABLE PATH
+# -----------------------------------
+# VARIABLE is name of variable containing _space_ separated list of
+# directories to be munged by the contents of PATH, which is string
+# having a format:
+# "DIR[:DIR]:"
+# string "DIR[ DIR]" will be prepended to VARIABLE
+# ":DIR[:DIR]"
+# string "DIR[ DIR]" will be appended to VARIABLE
+# "DIRP[:DIRP]::[DIRA:]DIRA"
+# string "DIRP[ DIRP]" will be prepended to VARIABLE and string
+# "DIRA[ DIRA]" will be appended to VARIABLE
+# "DIR[:DIR]"
+# VARIABLE will be replaced by "DIR[ DIR]"
+func_munge_path_list ()
+{
+ case x$2 in
+ x)
+ ;;
+ *:)
+ eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\"
+ ;;
+ x:*)
+ eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\"
+ ;;
+ *::*)
+ eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
+ eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\"
+ ;;
+ *)
+ eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\"
+ ;;
+ esac
+}
+
+for ac_header in dlfcn.h
+do :
+ ac_fn_c_check_header_compile "$LINENO" "dlfcn.h" "ac_cv_header_dlfcn_h" "$ac_includes_default
+"
+if test "x$ac_cv_header_dlfcn_h" = xyes; then :
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DLFCN_H 1
+_ACEOF
+
+fi
+
+done
+
+
+
+
+
+# Set options
+
+
+
+ enable_dlopen=no
+
+
+ enable_win32_dll=no
+
+
+ # Check whether --enable-shared was given.
+if test "${enable_shared+set}" = set; then :
+ enableval=$enable_shared; p=${PACKAGE-default}
+ case $enableval in
+ yes) enable_shared=yes ;;
+ no) enable_shared=no ;;
+ *)
+ enable_shared=no
+ # Look at the argument we got. We use all the common list separators.
+ lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+ for pkg in $enableval; do
+ IFS=$lt_save_ifs
+ if test "X$pkg" = "X$p"; then
+ enable_shared=yes
+ fi
+ done
+ IFS=$lt_save_ifs
+ ;;
+ esac
+else
+ enable_shared=yes
+fi
+
+
+
+
+
+
+
+
+
+ # Check whether --enable-static was given.
+if test "${enable_static+set}" = set; then :
+ enableval=$enable_static; p=${PACKAGE-default}
+ case $enableval in
+ yes) enable_static=yes ;;
+ no) enable_static=no ;;
+ *)
+ enable_static=no
+ # Look at the argument we got. We use all the common list separators.
+ lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+ for pkg in $enableval; do
+ IFS=$lt_save_ifs
+ if test "X$pkg" = "X$p"; then
+ enable_static=yes
+ fi
+ done
+ IFS=$lt_save_ifs
+ ;;
+ esac
+else
+ enable_static=yes
+fi
+
+
+
+
+
+
+
+
+
+
+# Check whether --with-pic was given.
+if test "${with_pic+set}" = set; then :
+ withval=$with_pic; lt_p=${PACKAGE-default}
+ case $withval in
+ yes|no) pic_mode=$withval ;;
+ *)
+ pic_mode=default
+ # Look at the argument we got. We use all the common list separators.
+ lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+ for lt_pkg in $withval; do
+ IFS=$lt_save_ifs
+ if test "X$lt_pkg" = "X$lt_p"; then
+ pic_mode=yes
+ fi
+ done
+ IFS=$lt_save_ifs
+ ;;
+ esac
+else
+ pic_mode=default
+fi
+
+
+
+
+
+
+
+
+ # Check whether --enable-fast-install was given.
+if test "${enable_fast_install+set}" = set; then :
+ enableval=$enable_fast_install; p=${PACKAGE-default}
+ case $enableval in
+ yes) enable_fast_install=yes ;;
+ no) enable_fast_install=no ;;
+ *)
+ enable_fast_install=no
+ # Look at the argument we got. We use all the common list separators.
+ lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+ for pkg in $enableval; do
+ IFS=$lt_save_ifs
+ if test "X$pkg" = "X$p"; then
+ enable_fast_install=yes
+ fi
+ done
+ IFS=$lt_save_ifs
+ ;;
+ esac
+else
+ enable_fast_install=yes
+fi
+
+
+
+
+
+
+
+
+ shared_archive_member_spec=
+case $host,$enable_shared in
+power*-*-aix[5-9]*,yes)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking which variant of shared library versioning to provide" >&5
+$as_echo_n "checking which variant of shared library versioning to provide... " >&6; }
+
+# Check whether --with-aix-soname was given.
+if test "${with_aix_soname+set}" = set; then :
+ withval=$with_aix_soname; case $withval in
+ aix|svr4|both)
+ ;;
+ *)
+ as_fn_error $? "Unknown argument to --with-aix-soname" "$LINENO" 5
+ ;;
+ esac
+ lt_cv_with_aix_soname=$with_aix_soname
+else
+ if ${lt_cv_with_aix_soname+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_with_aix_soname=aix
+fi
+
+ with_aix_soname=$lt_cv_with_aix_soname
+fi
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $with_aix_soname" >&5
+$as_echo "$with_aix_soname" >&6; }
+ if test aix != "$with_aix_soname"; then
+ # For the AIX way of multilib, we name the shared archive member
+ # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o',
+ # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File.
+ # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag,
+ # the AIX toolchain works better with OBJECT_MODE set (default 32).
+ if test 64 = "${OBJECT_MODE-32}"; then
+ shared_archive_member_spec=shr_64
+ else
+ shared_archive_member_spec=shr
+ fi
+ fi
+ ;;
+*)
+ with_aix_soname=aix
+ ;;
+esac
+
+
+
+
+
+
+
+
+
+
+# This can be used to rebuild libtool when needed
+LIBTOOL_DEPS=$ltmain
+
+# Always use our own libtool.
+LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+test -z "$LN_S" && LN_S="ln -s"
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+if test -n "${ZSH_VERSION+set}"; then
+ setopt NO_GLOB_SUBST
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for objdir" >&5
+$as_echo_n "checking for objdir... " >&6; }
+if ${lt_cv_objdir+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ rm -f .libs 2>/dev/null
+mkdir .libs 2>/dev/null
+if test -d .libs; then
+ lt_cv_objdir=.libs
+else
+ # MS-DOS does not allow filenames that begin with a dot.
+ lt_cv_objdir=_libs
+fi
+rmdir .libs 2>/dev/null
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_objdir" >&5
+$as_echo "$lt_cv_objdir" >&6; }
+objdir=$lt_cv_objdir
+
+
+
+
+
+cat >>confdefs.h <<_ACEOF
+#define LT_OBJDIR "$lt_cv_objdir/"
+_ACEOF
+
+
+
+
+case $host_os in
+aix3*)
+ # AIX sometimes has problems with the GCC collect2 program. For some
+ # reason, if we set the COLLECT_NAMES environment variable, the problems
+ # vanish in a puff of smoke.
+ if test set != "${COLLECT_NAMES+set}"; then
+ COLLECT_NAMES=
+ export COLLECT_NAMES
+ fi
+ ;;
+esac
+
+# Global variables:
+ofile=libtool
+can_build_shared=yes
+
+# All known linkers require a '.a' archive for static linking (except MSVC,
+# which needs '.lib').
+libext=a
+
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+old_CC=$CC
+old_CFLAGS=$CFLAGS
+
+# Set sane defaults for various variables
+test -z "$CC" && CC=cc
+test -z "$LTCC" && LTCC=$CC
+test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS
+test -z "$LD" && LD=ld
+test -z "$ac_objext" && ac_objext=o
+
+func_cc_basename $compiler
+cc_basename=$func_cc_basename_result
+
+
+# Only perform the check for file, if the check method requires it
+test -z "$MAGIC_CMD" && MAGIC_CMD=file
+case $deplibs_check_method in
+file_magic*)
+ if test "$file_magic_cmd" = '$MAGIC_CMD'; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ${ac_tool_prefix}file" >&5
+$as_echo_n "checking for ${ac_tool_prefix}file... " >&6; }
+if ${lt_cv_path_MAGIC_CMD+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ case $MAGIC_CMD in
+[\\/*] | ?:[\\/]*)
+ lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
+ ;;
+*)
+ lt_save_MAGIC_CMD=$MAGIC_CMD
+ lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+ ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
+ for ac_dir in $ac_dummy; do
+ IFS=$lt_save_ifs
+ test -z "$ac_dir" && ac_dir=.
+ if test -f "$ac_dir/${ac_tool_prefix}file"; then
+ lt_cv_path_MAGIC_CMD=$ac_dir/"${ac_tool_prefix}file"
+ if test -n "$file_magic_test_file"; then
+ case $deplibs_check_method in
+ "file_magic "*)
+ file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+ MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+ if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+ $EGREP "$file_magic_regex" > /dev/null; then
+ :
+ else
+ cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such. This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem. Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+ fi ;;
+ esac
+ fi
+ break
+ fi
+ done
+ IFS=$lt_save_ifs
+ MAGIC_CMD=$lt_save_MAGIC_CMD
+ ;;
+esac
+fi
+
+MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+if test -n "$MAGIC_CMD"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
+$as_echo "$MAGIC_CMD" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+
+
+
+if test -z "$lt_cv_path_MAGIC_CMD"; then
+ if test -n "$ac_tool_prefix"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for file" >&5
+$as_echo_n "checking for file... " >&6; }
+if ${lt_cv_path_MAGIC_CMD+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ case $MAGIC_CMD in
+[\\/*] | ?:[\\/]*)
+ lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
+ ;;
+*)
+ lt_save_MAGIC_CMD=$MAGIC_CMD
+ lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+ ac_dummy="/usr/bin$PATH_SEPARATOR$PATH"
+ for ac_dir in $ac_dummy; do
+ IFS=$lt_save_ifs
+ test -z "$ac_dir" && ac_dir=.
+ if test -f "$ac_dir/file"; then
+ lt_cv_path_MAGIC_CMD=$ac_dir/"file"
+ if test -n "$file_magic_test_file"; then
+ case $deplibs_check_method in
+ "file_magic "*)
+ file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+ MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+ if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+ $EGREP "$file_magic_regex" > /dev/null; then
+ :
+ else
+ cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such. This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem. Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+ fi ;;
+ esac
+ fi
+ break
+ fi
+ done
+ IFS=$lt_save_ifs
+ MAGIC_CMD=$lt_save_MAGIC_CMD
+ ;;
+esac
+fi
+
+MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+if test -n "$MAGIC_CMD"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MAGIC_CMD" >&5
+$as_echo "$MAGIC_CMD" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ else
+ MAGIC_CMD=:
+ fi
+fi
+
+ fi
+ ;;
+esac
+
+# Use C for the default configuration in the libtool script
+
+lt_save_CC=$CC
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+# Source file extension for C test sources.
+ac_ext=c
+
+# Object file extension for compiled C test sources.
+objext=o
+objext=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="int some_variable = 0;"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='int main(){return(0);}'
+
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+# Save the default compiler, since it gets overwritten when the other
+# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
+compiler_DEFAULT=$CC
+
+# save warnings/boilerplate of simple test code
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+
+lt_prog_compiler_no_builtin_flag=
+
+if test yes = "$GCC"; then
+ case $cc_basename in
+ nvcc*)
+ lt_prog_compiler_no_builtin_flag=' -Xcompiler -fno-builtin' ;;
+ *)
+ lt_prog_compiler_no_builtin_flag=' -fno-builtin' ;;
+ esac
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -fno-rtti -fno-exceptions" >&5
+$as_echo_n "checking if $compiler supports -fno-rtti -fno-exceptions... " >&6; }
+if ${lt_cv_prog_compiler_rtti_exceptions+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_prog_compiler_rtti_exceptions=no
+ ac_outfile=conftest.$ac_objext
+ echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+ lt_compiler_flag="-fno-rtti -fno-exceptions" ## exclude from sc_useless_quotes_in_assignment
+ # Insert the option either (1) after the last *FLAGS variable, or
+ # (2) before a word containing "conftest.", or (3) at the end.
+ # Note that $ac_compile itself does not contain backslashes and begins
+ # with a dollar sign (not a hyphen), so the echo should work correctly.
+ # The option is referenced via a variable to avoid confusing sed.
+ lt_compile=`echo "$ac_compile" | $SED \
+ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+ -e 's:$: $lt_compiler_flag:'`
+ (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+ (eval "$lt_compile" 2>conftest.err)
+ ac_status=$?
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ if (exit $ac_status) && test -s "$ac_outfile"; then
+ # The compiler can only warn and ignore the option if not recognized
+ # So say no if there are warnings other than the usual output.
+ $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+ $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+ if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+ lt_cv_prog_compiler_rtti_exceptions=yes
+ fi
+ fi
+ $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_rtti_exceptions" >&5
+$as_echo "$lt_cv_prog_compiler_rtti_exceptions" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_rtti_exceptions"; then
+ lt_prog_compiler_no_builtin_flag="$lt_prog_compiler_no_builtin_flag -fno-rtti -fno-exceptions"
+else
+ :
+fi
+
+fi
+
+
+
+
+
+
+ lt_prog_compiler_wl=
+lt_prog_compiler_pic=
+lt_prog_compiler_static=
+
+
+ if test yes = "$GCC"; then
+ lt_prog_compiler_wl='-Wl,'
+ lt_prog_compiler_static='-static'
+
+ case $host_os in
+ aix*)
+ # All AIX code is PIC.
+ if test ia64 = "$host_cpu"; then
+ # AIX 5 now supports IA64 processor
+ lt_prog_compiler_static='-Bstatic'
+ fi
+ lt_prog_compiler_pic='-fPIC'
+ ;;
+
+ amigaos*)
+ case $host_cpu in
+ powerpc)
+ # see comment about AmigaOS4 .so support
+ lt_prog_compiler_pic='-fPIC'
+ ;;
+ m68k)
+ # FIXME: we need at least 68020 code to build shared libraries, but
+ # adding the '-m68020' flag to GCC prevents building anything better,
+ # like '-m68040'.
+ lt_prog_compiler_pic='-m68020 -resident32 -malways-restore-a4'
+ ;;
+ esac
+ ;;
+
+ beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+ # PIC is the default for these OSes.
+ ;;
+
+ mingw* | cygwin* | pw32* | os2* | cegcc*)
+ # This hack is so that the source file can tell whether it is being
+ # built for inclusion in a dll (and should export symbols for example).
+ # Although the cygwin gcc ignores -fPIC, still need this for old-style
+ # (--disable-auto-import) libraries
+ lt_prog_compiler_pic='-DDLL_EXPORT'
+ case $host_os in
+ os2*)
+ lt_prog_compiler_static='$wl-static'
+ ;;
+ esac
+ ;;
+
+ darwin* | rhapsody*)
+ # PIC is the default on this platform
+ # Common symbols not allowed in MH_DYLIB files
+ lt_prog_compiler_pic='-fno-common'
+ ;;
+
+ haiku*)
+ # PIC is the default for Haiku.
+ # The "-static" flag exists, but is broken.
+ lt_prog_compiler_static=
+ ;;
+
+ hpux*)
+ # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+ # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag
+ # sets the default TLS model and affects inlining.
+ case $host_cpu in
+ hppa*64*)
+ # +Z the default
+ ;;
+ *)
+ lt_prog_compiler_pic='-fPIC'
+ ;;
+ esac
+ ;;
+
+ interix[3-9]*)
+ # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+ # Instead, we relocate shared libraries at runtime.
+ ;;
+
+ msdosdjgpp*)
+ # Just because we use GCC doesn't mean we suddenly get shared libraries
+ # on systems that don't support them.
+ lt_prog_compiler_can_build_shared=no
+ enable_shared=no
+ ;;
+
+ *nto* | *qnx*)
+ # QNX uses GNU C++, but need to define -shared option too, otherwise
+ # it will coredump.
+ lt_prog_compiler_pic='-fPIC -shared'
+ ;;
+
+ sysv4*MP*)
+ if test -d /usr/nec; then
+ lt_prog_compiler_pic=-Kconform_pic
+ fi
+ ;;
+
+ *)
+ lt_prog_compiler_pic='-fPIC'
+ ;;
+ esac
+
+ case $cc_basename in
+ nvcc*) # Cuda Compiler Driver 2.2
+ lt_prog_compiler_wl='-Xlinker '
+ if test -n "$lt_prog_compiler_pic"; then
+ lt_prog_compiler_pic="-Xcompiler $lt_prog_compiler_pic"
+ fi
+ ;;
+ esac
+ else
+ # PORTME Check for flag to pass linker flags through the system compiler.
+ case $host_os in
+ aix*)
+ lt_prog_compiler_wl='-Wl,'
+ if test ia64 = "$host_cpu"; then
+ # AIX 5 now supports IA64 processor
+ lt_prog_compiler_static='-Bstatic'
+ else
+ lt_prog_compiler_static='-bnso -bI:/lib/syscalls.exp'
+ fi
+ ;;
+
+ darwin* | rhapsody*)
+ # PIC is the default on this platform
+ # Common symbols not allowed in MH_DYLIB files
+ lt_prog_compiler_pic='-fno-common'
+ case $cc_basename in
+ nagfor*)
+ # NAG Fortran compiler
+ lt_prog_compiler_wl='-Wl,-Wl,,'
+ lt_prog_compiler_pic='-PIC'
+ lt_prog_compiler_static='-Bstatic'
+ ;;
+ esac
+ ;;
+
+ mingw* | cygwin* | pw32* | os2* | cegcc*)
+ # This hack is so that the source file can tell whether it is being
+ # built for inclusion in a dll (and should export symbols for example).
+ lt_prog_compiler_pic='-DDLL_EXPORT'
+ case $host_os in
+ os2*)
+ lt_prog_compiler_static='$wl-static'
+ ;;
+ esac
+ ;;
+
+ hpux9* | hpux10* | hpux11*)
+ lt_prog_compiler_wl='-Wl,'
+ # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+ # not for PA HP-UX.
+ case $host_cpu in
+ hppa*64*|ia64*)
+ # +Z the default
+ ;;
+ *)
+ lt_prog_compiler_pic='+Z'
+ ;;
+ esac
+ # Is there a better lt_prog_compiler_static that works with the bundled CC?
+ lt_prog_compiler_static='$wl-a ${wl}archive'
+ ;;
+
+ irix5* | irix6* | nonstopux*)
+ lt_prog_compiler_wl='-Wl,'
+ # PIC (with -KPIC) is the default.
+ lt_prog_compiler_static='-non_shared'
+ ;;
+
+ linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+ case $cc_basename in
+ # old Intel for x86_64, which still supported -KPIC.
+ ecc*)
+ lt_prog_compiler_wl='-Wl,'
+ lt_prog_compiler_pic='-KPIC'
+ lt_prog_compiler_static='-static'
+ ;;
+ # icc used to be incompatible with GCC.
+ # ICC 10 doesn't accept -KPIC any more.
+ icc* | ifort*)
+ lt_prog_compiler_wl='-Wl,'
+ lt_prog_compiler_pic='-fPIC'
+ lt_prog_compiler_static='-static'
+ ;;
+ # Lahey Fortran 8.1.
+ lf95*)
+ lt_prog_compiler_wl='-Wl,'
+ lt_prog_compiler_pic='--shared'
+ lt_prog_compiler_static='--static'
+ ;;
+ nagfor*)
+ # NAG Fortran compiler
+ lt_prog_compiler_wl='-Wl,-Wl,,'
+ lt_prog_compiler_pic='-PIC'
+ lt_prog_compiler_static='-Bstatic'
+ ;;
+ tcc*)
+ # Fabrice Bellard et al's Tiny C Compiler
+ lt_prog_compiler_wl='-Wl,'
+ lt_prog_compiler_pic='-fPIC'
+ lt_prog_compiler_static='-static'
+ ;;
+ pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
+ # Portland Group compilers (*not* the Pentium gcc compiler,
+ # which looks to be a dead project)
+ lt_prog_compiler_wl='-Wl,'
+ lt_prog_compiler_pic='-fpic'
+ lt_prog_compiler_static='-Bstatic'
+ ;;
+ ccc*)
+ lt_prog_compiler_wl='-Wl,'
+ # All Alpha code is PIC.
+ lt_prog_compiler_static='-non_shared'
+ ;;
+ xl* | bgxl* | bgf* | mpixl*)
+ # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene
+ lt_prog_compiler_wl='-Wl,'
+ lt_prog_compiler_pic='-qpic'
+ lt_prog_compiler_static='-qstaticlink'
+ ;;
+ *)
+ case `$CC -V 2>&1 | sed 5q` in
+ *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [1-7].* | *Sun*Fortran*\ 8.[0-3]*)
+ # Sun Fortran 8.3 passes all unrecognized flags to the linker
+ lt_prog_compiler_pic='-KPIC'
+ lt_prog_compiler_static='-Bstatic'
+ lt_prog_compiler_wl=''
+ ;;
+ *Sun\ F* | *Sun*Fortran*)
+ lt_prog_compiler_pic='-KPIC'
+ lt_prog_compiler_static='-Bstatic'
+ lt_prog_compiler_wl='-Qoption ld '
+ ;;
+ *Sun\ C*)
+ # Sun C 5.9
+ lt_prog_compiler_pic='-KPIC'
+ lt_prog_compiler_static='-Bstatic'
+ lt_prog_compiler_wl='-Wl,'
+ ;;
+ *Intel*\ [CF]*Compiler*)
+ lt_prog_compiler_wl='-Wl,'
+ lt_prog_compiler_pic='-fPIC'
+ lt_prog_compiler_static='-static'
+ ;;
+ *Portland\ Group*)
+ lt_prog_compiler_wl='-Wl,'
+ lt_prog_compiler_pic='-fpic'
+ lt_prog_compiler_static='-Bstatic'
+ ;;
+ esac
+ ;;
+ esac
+ ;;
+
+ newsos6)
+ lt_prog_compiler_pic='-KPIC'
+ lt_prog_compiler_static='-Bstatic'
+ ;;
+
+ *nto* | *qnx*)
+ # QNX uses GNU C++, but need to define -shared option too, otherwise
+ # it will coredump.
+ lt_prog_compiler_pic='-fPIC -shared'
+ ;;
+
+ osf3* | osf4* | osf5*)
+ lt_prog_compiler_wl='-Wl,'
+ # All OSF/1 code is PIC.
+ lt_prog_compiler_static='-non_shared'
+ ;;
+
+ rdos*)
+ lt_prog_compiler_static='-non_shared'
+ ;;
+
+ solaris*)
+ lt_prog_compiler_pic='-KPIC'
+ lt_prog_compiler_static='-Bstatic'
+ case $cc_basename in
+ f77* | f90* | f95* | sunf77* | sunf90* | sunf95*)
+ lt_prog_compiler_wl='-Qoption ld ';;
+ *)
+ lt_prog_compiler_wl='-Wl,';;
+ esac
+ ;;
+
+ sunos4*)
+ lt_prog_compiler_wl='-Qoption ld '
+ lt_prog_compiler_pic='-PIC'
+ lt_prog_compiler_static='-Bstatic'
+ ;;
+
+ sysv4 | sysv4.2uw2* | sysv4.3*)
+ lt_prog_compiler_wl='-Wl,'
+ lt_prog_compiler_pic='-KPIC'
+ lt_prog_compiler_static='-Bstatic'
+ ;;
+
+ sysv4*MP*)
+ if test -d /usr/nec; then
+ lt_prog_compiler_pic='-Kconform_pic'
+ lt_prog_compiler_static='-Bstatic'
+ fi
+ ;;
+
+ sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+ lt_prog_compiler_wl='-Wl,'
+ lt_prog_compiler_pic='-KPIC'
+ lt_prog_compiler_static='-Bstatic'
+ ;;
+
+ unicos*)
+ lt_prog_compiler_wl='-Wl,'
+ lt_prog_compiler_can_build_shared=no
+ ;;
+
+ uts4*)
+ lt_prog_compiler_pic='-pic'
+ lt_prog_compiler_static='-Bstatic'
+ ;;
+
+ *)
+ lt_prog_compiler_can_build_shared=no
+ ;;
+ esac
+ fi
+
+case $host_os in
+ # For platforms that do not support PIC, -DPIC is meaningless:
+ *djgpp*)
+ lt_prog_compiler_pic=
+ ;;
+ *)
+ lt_prog_compiler_pic="$lt_prog_compiler_pic -DPIC"
+ ;;
+esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
+$as_echo_n "checking for $compiler option to produce PIC... " >&6; }
+if ${lt_cv_prog_compiler_pic+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_prog_compiler_pic=$lt_prog_compiler_pic
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic" >&5
+$as_echo "$lt_cv_prog_compiler_pic" >&6; }
+lt_prog_compiler_pic=$lt_cv_prog_compiler_pic
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$lt_prog_compiler_pic"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic works" >&5
+$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic works... " >&6; }
+if ${lt_cv_prog_compiler_pic_works+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_prog_compiler_pic_works=no
+ ac_outfile=conftest.$ac_objext
+ echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+ lt_compiler_flag="$lt_prog_compiler_pic -DPIC" ## exclude from sc_useless_quotes_in_assignment
+ # Insert the option either (1) after the last *FLAGS variable, or
+ # (2) before a word containing "conftest.", or (3) at the end.
+ # Note that $ac_compile itself does not contain backslashes and begins
+ # with a dollar sign (not a hyphen), so the echo should work correctly.
+ # The option is referenced via a variable to avoid confusing sed.
+ lt_compile=`echo "$ac_compile" | $SED \
+ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+ -e 's:$: $lt_compiler_flag:'`
+ (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+ (eval "$lt_compile" 2>conftest.err)
+ ac_status=$?
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ if (exit $ac_status) && test -s "$ac_outfile"; then
+ # The compiler can only warn and ignore the option if not recognized
+ # So say no if there are warnings other than the usual output.
+ $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+ $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+ if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+ lt_cv_prog_compiler_pic_works=yes
+ fi
+ fi
+ $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works" >&5
+$as_echo "$lt_cv_prog_compiler_pic_works" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_pic_works"; then
+ case $lt_prog_compiler_pic in
+ "" | " "*) ;;
+ *) lt_prog_compiler_pic=" $lt_prog_compiler_pic" ;;
+ esac
+else
+ lt_prog_compiler_pic=
+ lt_prog_compiler_can_build_shared=no
+fi
+
+fi
+
+
+
+
+
+
+
+
+
+
+
+#
+# Check to make sure the static flag actually works.
+#
+wl=$lt_prog_compiler_wl eval lt_tmp_static_flag=\"$lt_prog_compiler_static\"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
+$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
+if ${lt_cv_prog_compiler_static_works+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_prog_compiler_static_works=no
+ save_LDFLAGS=$LDFLAGS
+ LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
+ echo "$lt_simple_link_test_code" > conftest.$ac_ext
+ if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+ # The linker can only warn and ignore the option if not recognized
+ # So say no if there are warnings
+ if test -s conftest.err; then
+ # Append any errors to the config.log.
+ cat conftest.err 1>&5
+ $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+ $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+ if diff conftest.exp conftest.er2 >/dev/null; then
+ lt_cv_prog_compiler_static_works=yes
+ fi
+ else
+ lt_cv_prog_compiler_static_works=yes
+ fi
+ fi
+ $RM -r conftest*
+ LDFLAGS=$save_LDFLAGS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works" >&5
+$as_echo "$lt_cv_prog_compiler_static_works" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_static_works"; then
+ :
+else
+ lt_prog_compiler_static=
+fi
+
+
+
+
+
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_prog_compiler_c_o=no
+ $RM -r conftest 2>/dev/null
+ mkdir conftest
+ cd conftest
+ mkdir out
+ echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+ lt_compiler_flag="-o out/conftest2.$ac_objext"
+ # Insert the option either (1) after the last *FLAGS variable, or
+ # (2) before a word containing "conftest.", or (3) at the end.
+ # Note that $ac_compile itself does not contain backslashes and begins
+ # with a dollar sign (not a hyphen), so the echo should work correctly.
+ lt_compile=`echo "$ac_compile" | $SED \
+ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+ -e 's:$: $lt_compiler_flag:'`
+ (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+ (eval "$lt_compile" 2>out/conftest.err)
+ ac_status=$?
+ cat out/conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ if (exit $ac_status) && test -s out/conftest2.$ac_objext
+ then
+ # The compiler can only warn and ignore the option if not recognized
+ # So say no if there are warnings
+ $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+ $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+ if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+ lt_cv_prog_compiler_c_o=yes
+ fi
+ fi
+ chmod u+w . 2>&5
+ $RM conftest*
+ # SGI C++ compiler will create directory out/ii_files/ for
+ # template instantiation
+ test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+ $RM out/* && rmdir out
+ cd ..
+ $RM -r conftest
+ $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
+$as_echo "$lt_cv_prog_compiler_c_o" >&6; }
+
+
+
+
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_prog_compiler_c_o=no
+ $RM -r conftest 2>/dev/null
+ mkdir conftest
+ cd conftest
+ mkdir out
+ echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+ lt_compiler_flag="-o out/conftest2.$ac_objext"
+ # Insert the option either (1) after the last *FLAGS variable, or
+ # (2) before a word containing "conftest.", or (3) at the end.
+ # Note that $ac_compile itself does not contain backslashes and begins
+ # with a dollar sign (not a hyphen), so the echo should work correctly.
+ lt_compile=`echo "$ac_compile" | $SED \
+ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+ -e 's:$: $lt_compiler_flag:'`
+ (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+ (eval "$lt_compile" 2>out/conftest.err)
+ ac_status=$?
+ cat out/conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ if (exit $ac_status) && test -s out/conftest2.$ac_objext
+ then
+ # The compiler can only warn and ignore the option if not recognized
+ # So say no if there are warnings
+ $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+ $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+ if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+ lt_cv_prog_compiler_c_o=yes
+ fi
+ fi
+ chmod u+w . 2>&5
+ $RM conftest*
+ # SGI C++ compiler will create directory out/ii_files/ for
+ # template instantiation
+ test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+ $RM out/* && rmdir out
+ cd ..
+ $RM -r conftest
+ $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o" >&5
+$as_echo "$lt_cv_prog_compiler_c_o" >&6; }
+
+
+
+
+hard_links=nottested
+if test no = "$lt_cv_prog_compiler_c_o" && test no != "$need_locks"; then
+ # do not overwrite the value of need_locks provided by the user
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
+$as_echo_n "checking if we can lock with hard links... " >&6; }
+ hard_links=yes
+ $RM conftest*
+ ln conftest.a conftest.b 2>/dev/null && hard_links=no
+ touch conftest.a
+ ln conftest.a conftest.b 2>&5 || hard_links=no
+ ln conftest.a conftest.b 2>/dev/null && hard_links=no
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
+$as_echo "$hard_links" >&6; }
+ if test no = "$hard_links"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&5
+$as_echo "$as_me: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&2;}
+ need_locks=warn
+ fi
+else
+ need_locks=no
+fi
+
+
+
+
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+
+ runpath_var=
+ allow_undefined_flag=
+ always_export_symbols=no
+ archive_cmds=
+ archive_expsym_cmds=
+ compiler_needs_object=no
+ enable_shared_with_static_runtimes=no
+ export_dynamic_flag_spec=
+ export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+ hardcode_automatic=no
+ hardcode_direct=no
+ hardcode_direct_absolute=no
+ hardcode_libdir_flag_spec=
+ hardcode_libdir_separator=
+ hardcode_minus_L=no
+ hardcode_shlibpath_var=unsupported
+ inherit_rpath=no
+ link_all_deplibs=unknown
+ module_cmds=
+ module_expsym_cmds=
+ old_archive_from_new_cmds=
+ old_archive_from_expsyms_cmds=
+ thread_safe_flag_spec=
+ whole_archive_flag_spec=
+ # include_expsyms should be a list of space-separated symbols to be *always*
+ # included in the symbol list
+ include_expsyms=
+ # exclude_expsyms can be an extended regexp of symbols to exclude
+ # it will be wrapped by ' (' and ')$', so one must not match beginning or
+ # end of line. Example: 'a|bc|.*d.*' will exclude the symbols 'a' and 'bc',
+ # as well as any symbol that contains 'd'.
+ exclude_expsyms='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
+ # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+ # platforms (ab)use it in PIC code, but their linkers get confused if
+ # the symbol is explicitly referenced. Since portable code cannot
+ # rely on this symbol name, it's probably fine to never include it in
+ # preloaded symbol tables.
+ # Exclude shared library initialization/finalization symbols.
+ extract_expsyms_cmds=
+
+ case $host_os in
+ cygwin* | mingw* | pw32* | cegcc*)
+ # FIXME: the MSVC++ port hasn't been tested in a loooong time
+ # When not using gcc, we currently assume that we are using
+ # Microsoft Visual C++.
+ if test yes != "$GCC"; then
+ with_gnu_ld=no
+ fi
+ ;;
+ interix*)
+ # we just hope/assume this is gcc and not c89 (= MSVC++)
+ with_gnu_ld=yes
+ ;;
+ openbsd* | bitrig*)
+ with_gnu_ld=no
+ ;;
+ esac
+
+ ld_shlibs=yes
+
+ # On some targets, GNU ld is compatible enough with the native linker
+ # that we're better off using the native interface for both.
+ lt_use_gnu_ld_interface=no
+ if test yes = "$with_gnu_ld"; then
+ case $host_os in
+ aix*)
+ # The AIX port of GNU ld has always aspired to compatibility
+ # with the native linker. However, as the warning in the GNU ld
+ # block says, versions before 2.19.5* couldn't really create working
+ # shared libraries, regardless of the interface used.
+ case `$LD -v 2>&1` in
+ *\ \(GNU\ Binutils\)\ 2.19.5*) ;;
+ *\ \(GNU\ Binutils\)\ 2.[2-9]*) ;;
+ *\ \(GNU\ Binutils\)\ [3-9]*) ;;
+ *)
+ lt_use_gnu_ld_interface=yes
+ ;;
+ esac
+ ;;
+ *)
+ lt_use_gnu_ld_interface=yes
+ ;;
+ esac
+ fi
+
+ if test yes = "$lt_use_gnu_ld_interface"; then
+ # If archive_cmds runs LD, not CC, wlarc should be empty
+ wlarc='$wl'
+
+ # Set some defaults for GNU ld with shared library support. These
+ # are reset later if shared libraries are not supported. Putting them
+ # here allows them to be overridden if necessary.
+ runpath_var=LD_RUN_PATH
+ hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+ export_dynamic_flag_spec='$wl--export-dynamic'
+ # ancient GNU ld didn't support --whole-archive et. al.
+ if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
+ whole_archive_flag_spec=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+ else
+ whole_archive_flag_spec=
+ fi
+ supports_anon_versioning=no
+ case `$LD -v | $SED -e 's/(^)\+)\s\+//' 2>&1` in
+ *GNU\ gold*) supports_anon_versioning=yes ;;
+ *\ [01].* | *\ 2.[0-9].* | *\ 2.10.*) ;; # catch versions < 2.11
+ *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
+ *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
+ *\ 2.11.*) ;; # other 2.11 versions
+ *) supports_anon_versioning=yes ;;
+ esac
+
+ # See if GNU ld supports shared libraries.
+ case $host_os in
+ aix[3-9]*)
+ # On AIX/PPC, the GNU linker is very broken
+ if test ia64 != "$host_cpu"; then
+ ld_shlibs=no
+ cat <<_LT_EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.19, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support. If you
+*** really care for shared libraries, you may want to install binutils
+*** 2.20 or above, or modify your PATH so that a non-GNU linker is found.
+*** You will then need to restart the configuration process.
+
+_LT_EOF
+ fi
+ ;;
+
+ amigaos*)
+ case $host_cpu in
+ powerpc)
+ # see comment about AmigaOS4 .so support
+ archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ archive_expsym_cmds=''
+ ;;
+ m68k)
+ archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+ hardcode_libdir_flag_spec='-L$libdir'
+ hardcode_minus_L=yes
+ ;;
+ esac
+ ;;
+
+ beos*)
+ if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+ allow_undefined_flag=unsupported
+ # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+ # support --undefined. This deserves some investigation. FIXME
+ archive_cmds='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ else
+ ld_shlibs=no
+ fi
+ ;;
+
+ cygwin* | mingw* | pw32* | cegcc*)
+ # _LT_TAGVAR(hardcode_libdir_flag_spec, ) is actually meaningless,
+ # as there is no search path for DLLs.
+ hardcode_libdir_flag_spec='-L$libdir'
+ export_dynamic_flag_spec='$wl--export-all-symbols'
+ allow_undefined_flag=unsupported
+ always_export_symbols=no
+ enable_shared_with_static_runtimes=yes
+ export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols'
+ exclude_expsyms='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'
+
+ if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+ archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+ # If the export-symbols file already is a .def file, use it as
+ # is; otherwise, prepend EXPORTS...
+ archive_expsym_cmds='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then
+ cp $export_symbols $output_objdir/$soname.def;
+ else
+ echo EXPORTS > $output_objdir/$soname.def;
+ cat $export_symbols >> $output_objdir/$soname.def;
+ fi~
+ $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+ else
+ ld_shlibs=no
+ fi
+ ;;
+
+ haiku*)
+ archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ link_all_deplibs=yes
+ ;;
+
+ os2*)
+ hardcode_libdir_flag_spec='-L$libdir'
+ hardcode_minus_L=yes
+ allow_undefined_flag=unsupported
+ shrext_cmds=.dll
+ archive_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ archive_expsym_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ prefix_cmds="$SED"~
+ if test EXPORTS = "`$SED 1q $export_symbols`"; then
+ prefix_cmds="$prefix_cmds -e 1d";
+ fi~
+ prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+ cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+ enable_shared_with_static_runtimes=yes
+ ;;
+
+ interix[3-9]*)
+ hardcode_direct=no
+ hardcode_shlibpath_var=no
+ hardcode_libdir_flag_spec='$wl-rpath,$libdir'
+ export_dynamic_flag_spec='$wl-E'
+ # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+ # Instead, shared libraries are loaded at an image base (0x10000000 by
+ # default) and relocated if they conflict, which is a slow very memory
+ # consuming and fragmenting process. To avoid this, we pick a random,
+ # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+ # time. Moving up from 0x10000000 also allows more sbrk(2) space.
+ archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+ archive_expsym_cmds='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+ ;;
+
+ gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+ tmp_diet=no
+ if test linux-dietlibc = "$host_os"; then
+ case $cc_basename in
+ diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn)
+ esac
+ fi
+ if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
+ && test no = "$tmp_diet"
+ then
+ tmp_addflag=' $pic_flag'
+ tmp_sharedflag='-shared'
+ case $cc_basename,$host_cpu in
+ pgcc*) # Portland Group C compiler
+ whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+ tmp_addflag=' $pic_flag'
+ ;;
+ pgf77* | pgf90* | pgf95* | pgfortran*)
+ # Portland Group f77 and f90 compilers
+ whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+ tmp_addflag=' $pic_flag -Mnomain' ;;
+ ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64
+ tmp_addflag=' -i_dynamic' ;;
+ efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64
+ tmp_addflag=' -i_dynamic -nofor_main' ;;
+ ifc* | ifort*) # Intel Fortran compiler
+ tmp_addflag=' -nofor_main' ;;
+ lf95*) # Lahey Fortran 8.1
+ whole_archive_flag_spec=
+ tmp_sharedflag='--shared' ;;
+ nagfor*) # NAGFOR 5.3
+ tmp_sharedflag='-Wl,-shared' ;;
+ xl[cC]* | bgxl[cC]* | mpixl[cC]*) # IBM XL C 8.0 on PPC (deal with xlf below)
+ tmp_sharedflag='-qmkshrobj'
+ tmp_addflag= ;;
+ nvcc*) # Cuda Compiler Driver 2.2
+ whole_archive_flag_spec='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+ compiler_needs_object=yes
+ ;;
+ esac
+ case `$CC -V 2>&1 | sed 5q` in
+ *Sun\ C*) # Sun C 5.9
+ whole_archive_flag_spec='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+ compiler_needs_object=yes
+ tmp_sharedflag='-G' ;;
+ *Sun\ F*) # Sun Fortran 8.3
+ tmp_sharedflag='-G' ;;
+ esac
+ archive_cmds='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+
+ if test yes = "$supports_anon_versioning"; then
+ archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
+ cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+ echo "local: *; };" >> $output_objdir/$libname.ver~
+ $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
+ fi
+
+ case $cc_basename in
+ tcc*)
+ export_dynamic_flag_spec='-rdynamic'
+ ;;
+ xlf* | bgf* | bgxlf* | mpixlf*)
+ # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
+ whole_archive_flag_spec='--whole-archive$convenience --no-whole-archive'
+ hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+ archive_cmds='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
+ if test yes = "$supports_anon_versioning"; then
+ archive_expsym_cmds='echo "{ global:" > $output_objdir/$libname.ver~
+ cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+ echo "local: *; };" >> $output_objdir/$libname.ver~
+ $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
+ fi
+ ;;
+ esac
+ else
+ ld_shlibs=no
+ fi
+ ;;
+
+ netbsd*)
+ if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+ archive_cmds='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
+ wlarc=
+ else
+ archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+ fi
+ ;;
+
+ solaris*)
+ if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
+ ld_shlibs=no
+ cat <<_LT_EOF 1>&2
+
+*** Warning: The releases 2.8.* of the GNU linker cannot reliably
+*** create shared libraries on Solaris systems. Therefore, libtool
+*** is disabling shared libraries support. We urge you to upgrade GNU
+*** binutils to release 2.9.1 or newer. Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+ elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+ archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+ else
+ ld_shlibs=no
+ fi
+ ;;
+
+ sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
+ case `$LD -v 2>&1` in
+ *\ [01].* | *\ 2.[0-9].* | *\ 2.1[0-5].*)
+ ld_shlibs=no
+ cat <<_LT_EOF 1>&2
+
+*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot
+*** reliably create shared libraries on SCO systems. Therefore, libtool
+*** is disabling shared libraries support. We urge you to upgrade GNU
+*** binutils to release 2.16.91.0.3 or newer. Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+ ;;
+ *)
+ # For security reasons, it is highly recommended that you always
+ # use absolute paths for naming shared libraries, and exclude the
+ # DT_RUNPATH tag from executables and libraries. But doing so
+ # requires that you compile everything twice, which is a pain.
+ if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+ hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+ archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+ else
+ ld_shlibs=no
+ fi
+ ;;
+ esac
+ ;;
+
+ sunos4*)
+ archive_cmds='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+ wlarc=
+ hardcode_direct=yes
+ hardcode_shlibpath_var=no
+ ;;
+
+ *)
+ if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+ archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+ else
+ ld_shlibs=no
+ fi
+ ;;
+ esac
+
+ if test no = "$ld_shlibs"; then
+ runpath_var=
+ hardcode_libdir_flag_spec=
+ export_dynamic_flag_spec=
+ whole_archive_flag_spec=
+ fi
+ else
+ # PORTME fill in a description of your system's linker (not GNU ld)
+ case $host_os in
+ aix3*)
+ allow_undefined_flag=unsupported
+ always_export_symbols=yes
+ archive_expsym_cmds='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
+ # Note: this linker hardcodes the directories in LIBPATH if there
+ # are no directories specified by -L.
+ hardcode_minus_L=yes
+ if test yes = "$GCC" && test -z "$lt_prog_compiler_static"; then
+ # Neither direct hardcoding nor static linking is supported with a
+ # broken collect2.
+ hardcode_direct=unsupported
+ fi
+ ;;
+
+ aix[4-9]*)
+ if test ia64 = "$host_cpu"; then
+ # On IA64, the linker does run time linking by default, so we don't
+ # have to do anything special.
+ aix_use_runtimelinking=no
+ exp_sym_flag='-Bexport'
+ no_entry_flag=
+ else
+ # If we're using GNU nm, then we don't want the "-C" option.
+ # -C means demangle to GNU nm, but means don't demangle to AIX nm.
+ # Without the "-l" option, or with the "-B" option, AIX nm treats
+ # weak defined symbols like other global defined symbols, whereas
+ # GNU nm marks them as "W".
+ # While the 'weak' keyword is ignored in the Export File, we need
+ # it in the Import File for the 'aix-soname' feature, so we have
+ # to replace the "-B" option with "-P" for AIX nm.
+ if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+ export_symbols_cmds='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
+ else
+ export_symbols_cmds='`func_echo_all $NM | $SED -e '\''s/B\([^B]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && (substr(\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
+ fi
+ aix_use_runtimelinking=no
+
+ # Test if we are trying to use run time linking or normal
+ # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+ # have runtime linking enabled, and use it for executables.
+ # For shared libraries, we enable/disable runtime linking
+ # depending on the kind of the shared library created -
+ # when "with_aix_soname,aix_use_runtimelinking" is:
+ # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables
+ # "aix,yes" lib.so shared, rtl:yes, for executables
+ # lib.a static archive
+ # "both,no" lib.so.V(shr.o) shared, rtl:yes
+ # lib.a(lib.so.V) shared, rtl:no, for executables
+ # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
+ # lib.a(lib.so.V) shared, rtl:no
+ # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables
+ # lib.a static archive
+ case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
+ for ld_flag in $LDFLAGS; do
+ if (test x-brtl = "x$ld_flag" || test x-Wl,-brtl = "x$ld_flag"); then
+ aix_use_runtimelinking=yes
+ break
+ fi
+ done
+ if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
+ # With aix-soname=svr4, we create the lib.so.V shared archives only,
+ # so we don't have lib.a shared libs to link our executables.
+ # We have to force runtime linking in this case.
+ aix_use_runtimelinking=yes
+ LDFLAGS="$LDFLAGS -Wl,-brtl"
+ fi
+ ;;
+ esac
+
+ exp_sym_flag='-bexport'
+ no_entry_flag='-bnoentry'
+ fi
+
+ # When large executables or shared objects are built, AIX ld can
+ # have problems creating the table of contents. If linking a library
+ # or program results in "error TOC overflow" add -mminimal-toc to
+ # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not
+ # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+ archive_cmds=''
+ hardcode_direct=yes
+ hardcode_direct_absolute=yes
+ hardcode_libdir_separator=':'
+ link_all_deplibs=yes
+ file_list_spec='$wl-f,'
+ case $with_aix_soname,$aix_use_runtimelinking in
+ aix,*) ;; # traditional, no import file
+ svr4,* | *,yes) # use import file
+ # The Import File defines what to hardcode.
+ hardcode_direct=no
+ hardcode_direct_absolute=no
+ ;;
+ esac
+
+ if test yes = "$GCC"; then
+ case $host_os in aix4.[012]|aix4.[012].*)
+ # We only want to do this on AIX 4.2 and lower, the check
+ # below for broken collect2 doesn't work under 4.3+
+ collect2name=`$CC -print-prog-name=collect2`
+ if test -f "$collect2name" &&
+ strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+ then
+ # We have reworked collect2
+ :
+ else
+ # We have old collect2
+ hardcode_direct=unsupported
+ # It fails to find uninstalled libraries when the uninstalled
+ # path is not listed in the libpath. Setting hardcode_minus_L
+ # to unsupported forces relinking
+ hardcode_minus_L=yes
+ hardcode_libdir_flag_spec='-L$libdir'
+ hardcode_libdir_separator=
+ fi
+ ;;
+ esac
+ shared_flag='-shared'
+ if test yes = "$aix_use_runtimelinking"; then
+ shared_flag="$shared_flag "'$wl-G'
+ fi
+ # Need to ensure runtime linking is disabled for the traditional
+ # shared library, or the linker may eventually find shared libraries
+ # /with/ Import File - we do not want to mix them.
+ shared_flag_aix='-shared'
+ shared_flag_svr4='-shared $wl-G'
+ else
+ # not using gcc
+ if test ia64 = "$host_cpu"; then
+ # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+ # chokes on -Wl,-G. The following line is correct:
+ shared_flag='-G'
+ else
+ if test yes = "$aix_use_runtimelinking"; then
+ shared_flag='$wl-G'
+ else
+ shared_flag='$wl-bM:SRE'
+ fi
+ shared_flag_aix='$wl-bM:SRE'
+ shared_flag_svr4='$wl-G'
+ fi
+ fi
+
+ export_dynamic_flag_spec='$wl-bexpall'
+ # It seems that -bexpall does not export symbols beginning with
+ # underscore (_), so it is better to generate a list of symbols to export.
+ always_export_symbols=yes
+ if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
+ # Warning - without using the other runtime loading flags (-brtl),
+ # -berok will link without error, but may produce a broken library.
+ allow_undefined_flag='-berok'
+ # Determine the default libpath from the value encoded in an
+ # empty executable.
+ if test set = "${lt_cv_aix_libpath+set}"; then
+ aix_libpath=$lt_cv_aix_libpath
+else
+ if ${lt_cv_aix_libpath_+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+ lt_aix_libpath_sed='
+ /Import File Strings/,/^$/ {
+ /^0/ {
+ s/^0 *\([^ ]*\) *$/\1/
+ p
+ }
+ }'
+ lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+ # Check for a 64-bit object if we didn't find anything.
+ if test -z "$lt_cv_aix_libpath_"; then
+ lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+ fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ if test -z "$lt_cv_aix_libpath_"; then
+ lt_cv_aix_libpath_=/usr/lib:/lib
+ fi
+
+fi
+
+ aix_libpath=$lt_cv_aix_libpath_
+fi
+
+ hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath"
+ archive_expsym_cmds='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
+ else
+ if test ia64 = "$host_cpu"; then
+ hardcode_libdir_flag_spec='$wl-R $libdir:/usr/lib:/lib'
+ allow_undefined_flag="-z nodefs"
+ archive_expsym_cmds="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
+ else
+ # Determine the default libpath from the value encoded in an
+ # empty executable.
+ if test set = "${lt_cv_aix_libpath+set}"; then
+ aix_libpath=$lt_cv_aix_libpath
+else
+ if ${lt_cv_aix_libpath_+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+ lt_aix_libpath_sed='
+ /Import File Strings/,/^$/ {
+ /^0/ {
+ s/^0 *\([^ ]*\) *$/\1/
+ p
+ }
+ }'
+ lt_cv_aix_libpath_=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+ # Check for a 64-bit object if we didn't find anything.
+ if test -z "$lt_cv_aix_libpath_"; then
+ lt_cv_aix_libpath_=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+ fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ if test -z "$lt_cv_aix_libpath_"; then
+ lt_cv_aix_libpath_=/usr/lib:/lib
+ fi
+
+fi
+
+ aix_libpath=$lt_cv_aix_libpath_
+fi
+
+ hardcode_libdir_flag_spec='$wl-blibpath:$libdir:'"$aix_libpath"
+ # Warning - without using the other run time loading flags,
+ # -berok will link without error, but may produce a broken library.
+ no_undefined_flag=' $wl-bernotok'
+ allow_undefined_flag=' $wl-berok'
+ if test yes = "$with_gnu_ld"; then
+ # We only use this code for GNU lds that support --whole-archive.
+ whole_archive_flag_spec='$wl--whole-archive$convenience $wl--no-whole-archive'
+ else
+ # Exported symbols can be pulled into shared objects from archives
+ whole_archive_flag_spec='$convenience'
+ fi
+ archive_cmds_need_lc=yes
+ archive_expsym_cmds='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
+ # -brtl affects multiple linker settings, -berok does not and is overridden later
+ compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`'
+ if test svr4 != "$with_aix_soname"; then
+ # This is similar to how AIX traditionally builds its shared libraries.
+ archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
+ fi
+ if test aix != "$with_aix_soname"; then
+ archive_expsym_cmds="$archive_expsym_cmds"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
+ else
+ # used by -dlpreopen to get the symbols
+ archive_expsym_cmds="$archive_expsym_cmds"'~$MV $output_objdir/$realname.d/$soname $output_objdir'
+ fi
+ archive_expsym_cmds="$archive_expsym_cmds"'~$RM -r $output_objdir/$realname.d'
+ fi
+ fi
+ ;;
+
+ amigaos*)
+ case $host_cpu in
+ powerpc)
+ # see comment about AmigaOS4 .so support
+ archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ archive_expsym_cmds=''
+ ;;
+ m68k)
+ archive_cmds='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+ hardcode_libdir_flag_spec='-L$libdir'
+ hardcode_minus_L=yes
+ ;;
+ esac
+ ;;
+
+ bsdi[45]*)
+ export_dynamic_flag_spec=-rdynamic
+ ;;
+
+ cygwin* | mingw* | pw32* | cegcc*)
+ # When not using gcc, we currently assume that we are using
+ # Microsoft Visual C++.
+ # hardcode_libdir_flag_spec is actually meaningless, as there is
+ # no search path for DLLs.
+ case $cc_basename in
+ cl*)
+ # Native MSVC
+ hardcode_libdir_flag_spec=' '
+ allow_undefined_flag=unsupported
+ always_export_symbols=yes
+ file_list_spec='@'
+ # Tell ltmain to make .lib files, not .a files.
+ libext=lib
+ # Tell ltmain to make .dll files, not .so files.
+ shrext_cmds=.dll
+ # FIXME: Setting linknames here is a bad hack.
+ archive_cmds='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
+ archive_expsym_cmds='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then
+ cp "$export_symbols" "$output_objdir/$soname.def";
+ echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
+ else
+ $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
+ fi~
+ $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+ linknames='
+ # The linker will not automatically build a static lib if we build a DLL.
+ # _LT_TAGVAR(old_archive_from_new_cmds, )='true'
+ enable_shared_with_static_runtimes=yes
+ exclude_expsyms='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+ export_symbols_cmds='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1,DATA/'\'' | $SED -e '\''/^[AITW][ ]/s/.*[ ]//'\'' | sort | uniq > $export_symbols'
+ # Don't use ranlib
+ old_postinstall_cmds='chmod 644 $oldlib'
+ postlink_cmds='lt_outputfile="@OUTPUT@"~
+ lt_tool_outputfile="@TOOL_OUTPUT@"~
+ case $lt_outputfile in
+ *.exe|*.EXE) ;;
+ *)
+ lt_outputfile=$lt_outputfile.exe
+ lt_tool_outputfile=$lt_tool_outputfile.exe
+ ;;
+ esac~
+ if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
+ $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+ $RM "$lt_outputfile.manifest";
+ fi'
+ ;;
+ *)
+ # Assume MSVC wrapper
+ hardcode_libdir_flag_spec=' '
+ allow_undefined_flag=unsupported
+ # Tell ltmain to make .lib files, not .a files.
+ libext=lib
+ # Tell ltmain to make .dll files, not .so files.
+ shrext_cmds=.dll
+ # FIXME: Setting linknames here is a bad hack.
+ archive_cmds='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
+ # The linker will automatically build a .lib file if we build a DLL.
+ old_archive_from_new_cmds='true'
+ # FIXME: Should let the user specify the lib program.
+ old_archive_cmds='lib -OUT:$oldlib$oldobjs$old_deplibs'
+ enable_shared_with_static_runtimes=yes
+ ;;
+ esac
+ ;;
+
+ darwin* | rhapsody*)
+
+
+ archive_cmds_need_lc=no
+ hardcode_direct=no
+ hardcode_automatic=yes
+ hardcode_shlibpath_var=unsupported
+ if test yes = "$lt_cv_ld_force_load"; then
+ whole_archive_flag_spec='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+
+ else
+ whole_archive_flag_spec=''
+ fi
+ link_all_deplibs=yes
+ allow_undefined_flag=$_lt_dar_allow_undefined
+ case $cc_basename in
+ ifort*|nagfor*) _lt_dar_can_shared=yes ;;
+ *) _lt_dar_can_shared=$GCC ;;
+ esac
+ if test yes = "$_lt_dar_can_shared"; then
+ output_verbose_link_cmd=func_echo_all
+ archive_cmds="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil"
+ module_cmds="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil"
+ archive_expsym_cmds="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil"
+ module_expsym_cmds="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil"
+
+ else
+ ld_shlibs=no
+ fi
+
+ ;;
+
+ dgux*)
+ archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ hardcode_libdir_flag_spec='-L$libdir'
+ hardcode_shlibpath_var=no
+ ;;
+
+ # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
+ # support. Future versions do this automatically, but an explicit c++rt0.o
+ # does not break anything, and helps significantly (at the cost of a little
+ # extra space).
+ freebsd2.2*)
+ archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
+ hardcode_libdir_flag_spec='-R$libdir'
+ hardcode_direct=yes
+ hardcode_shlibpath_var=no
+ ;;
+
+ # Unfortunately, older versions of FreeBSD 2 do not have this feature.
+ freebsd2.*)
+ archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+ hardcode_direct=yes
+ hardcode_minus_L=yes
+ hardcode_shlibpath_var=no
+ ;;
+
+ # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+ freebsd* | dragonfly*)
+ archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+ hardcode_libdir_flag_spec='-R$libdir'
+ hardcode_direct=yes
+ hardcode_shlibpath_var=no
+ ;;
+
+ hpux9*)
+ if test yes = "$GCC"; then
+ archive_cmds='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+ else
+ archive_cmds='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+ fi
+ hardcode_libdir_flag_spec='$wl+b $wl$libdir'
+ hardcode_libdir_separator=:
+ hardcode_direct=yes
+
+ # hardcode_minus_L: Not really in the search PATH,
+ # but as the default location of the library.
+ hardcode_minus_L=yes
+ export_dynamic_flag_spec='$wl-E'
+ ;;
+
+ hpux10*)
+ if test yes,no = "$GCC,$with_gnu_ld"; then
+ archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+ else
+ archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+ fi
+ if test no = "$with_gnu_ld"; then
+ hardcode_libdir_flag_spec='$wl+b $wl$libdir'
+ hardcode_libdir_separator=:
+ hardcode_direct=yes
+ hardcode_direct_absolute=yes
+ export_dynamic_flag_spec='$wl-E'
+ # hardcode_minus_L: Not really in the search PATH,
+ # but as the default location of the library.
+ hardcode_minus_L=yes
+ fi
+ ;;
+
+ hpux11*)
+ if test yes,no = "$GCC,$with_gnu_ld"; then
+ case $host_cpu in
+ hppa*64*)
+ archive_cmds='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ ia64*)
+ archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ *)
+ archive_cmds='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ esac
+ else
+ case $host_cpu in
+ hppa*64*)
+ archive_cmds='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ ia64*)
+ archive_cmds='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ *)
+
+ # Older versions of the 11.00 compiler do not understand -b yet
+ # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $CC understands -b" >&5
+$as_echo_n "checking if $CC understands -b... " >&6; }
+if ${lt_cv_prog_compiler__b+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_prog_compiler__b=no
+ save_LDFLAGS=$LDFLAGS
+ LDFLAGS="$LDFLAGS -b"
+ echo "$lt_simple_link_test_code" > conftest.$ac_ext
+ if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+ # The linker can only warn and ignore the option if not recognized
+ # So say no if there are warnings
+ if test -s conftest.err; then
+ # Append any errors to the config.log.
+ cat conftest.err 1>&5
+ $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+ $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+ if diff conftest.exp conftest.er2 >/dev/null; then
+ lt_cv_prog_compiler__b=yes
+ fi
+ else
+ lt_cv_prog_compiler__b=yes
+ fi
+ fi
+ $RM -r conftest*
+ LDFLAGS=$save_LDFLAGS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler__b" >&5
+$as_echo "$lt_cv_prog_compiler__b" >&6; }
+
+if test yes = "$lt_cv_prog_compiler__b"; then
+ archive_cmds='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+else
+ archive_cmds='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+fi
+
+ ;;
+ esac
+ fi
+ if test no = "$with_gnu_ld"; then
+ hardcode_libdir_flag_spec='$wl+b $wl$libdir'
+ hardcode_libdir_separator=:
+
+ case $host_cpu in
+ hppa*64*|ia64*)
+ hardcode_direct=no
+ hardcode_shlibpath_var=no
+ ;;
+ *)
+ hardcode_direct=yes
+ hardcode_direct_absolute=yes
+ export_dynamic_flag_spec='$wl-E'
+
+ # hardcode_minus_L: Not really in the search PATH,
+ # but as the default location of the library.
+ hardcode_minus_L=yes
+ ;;
+ esac
+ fi
+ ;;
+
+ irix5* | irix6* | nonstopux*)
+ if test yes = "$GCC"; then
+ archive_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+ # Try to use the -exported_symbol ld option, if it does not
+ # work, assume that -exports_file does not work either and
+ # implicitly export all symbols.
+ # This should be the same for all languages, so no per-tag cache variable.
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $host_os linker accepts -exported_symbol" >&5
+$as_echo_n "checking whether the $host_os linker accepts -exported_symbol... " >&6; }
+if ${lt_cv_irix_exported_symbol+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ save_LDFLAGS=$LDFLAGS
+ LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+int foo (void) { return 0; }
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ lt_cv_irix_exported_symbol=yes
+else
+ lt_cv_irix_exported_symbol=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ LDFLAGS=$save_LDFLAGS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_irix_exported_symbol" >&5
+$as_echo "$lt_cv_irix_exported_symbol" >&6; }
+ if test yes = "$lt_cv_irix_exported_symbol"; then
+ archive_expsym_cmds='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib'
+ fi
+ else
+ archive_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+ archive_expsym_cmds='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib'
+ fi
+ archive_cmds_need_lc='no'
+ hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+ hardcode_libdir_separator=:
+ inherit_rpath=yes
+ link_all_deplibs=yes
+ ;;
+
+ linux*)
+ case $cc_basename in
+ tcc*)
+ # Fabrice Bellard et al's Tiny C Compiler
+ ld_shlibs=yes
+ archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ esac
+ ;;
+
+ netbsd*)
+ if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+ archive_cmds='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out
+ else
+ archive_cmds='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF
+ fi
+ hardcode_libdir_flag_spec='-R$libdir'
+ hardcode_direct=yes
+ hardcode_shlibpath_var=no
+ ;;
+
+ newsos6)
+ archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ hardcode_direct=yes
+ hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+ hardcode_libdir_separator=:
+ hardcode_shlibpath_var=no
+ ;;
+
+ *nto* | *qnx*)
+ ;;
+
+ openbsd* | bitrig*)
+ if test -f /usr/libexec/ld.so; then
+ hardcode_direct=yes
+ hardcode_shlibpath_var=no
+ hardcode_direct_absolute=yes
+ if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+ archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+ archive_expsym_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols'
+ hardcode_libdir_flag_spec='$wl-rpath,$libdir'
+ export_dynamic_flag_spec='$wl-E'
+ else
+ archive_cmds='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+ hardcode_libdir_flag_spec='$wl-rpath,$libdir'
+ fi
+ else
+ ld_shlibs=no
+ fi
+ ;;
+
+ os2*)
+ hardcode_libdir_flag_spec='-L$libdir'
+ hardcode_minus_L=yes
+ allow_undefined_flag=unsupported
+ shrext_cmds=.dll
+ archive_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ archive_expsym_cmds='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ prefix_cmds="$SED"~
+ if test EXPORTS = "`$SED 1q $export_symbols`"; then
+ prefix_cmds="$prefix_cmds -e 1d";
+ fi~
+ prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+ cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ old_archive_From_new_cmds='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+ enable_shared_with_static_runtimes=yes
+ ;;
+
+ osf3*)
+ if test yes = "$GCC"; then
+ allow_undefined_flag=' $wl-expect_unresolved $wl\*'
+ archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+ else
+ allow_undefined_flag=' -expect_unresolved \*'
+ archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+ fi
+ archive_cmds_need_lc='no'
+ hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+ hardcode_libdir_separator=:
+ ;;
+
+ osf4* | osf5*) # as osf3* with the addition of -msym flag
+ if test yes = "$GCC"; then
+ allow_undefined_flag=' $wl-expect_unresolved $wl\*'
+ archive_cmds='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+ hardcode_libdir_flag_spec='$wl-rpath $wl$libdir'
+ else
+ allow_undefined_flag=' -expect_unresolved \*'
+ archive_cmds='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+ archive_expsym_cmds='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
+ $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp'
+
+ # Both c and cxx compiler support -rpath directly
+ hardcode_libdir_flag_spec='-rpath $libdir'
+ fi
+ archive_cmds_need_lc='no'
+ hardcode_libdir_separator=:
+ ;;
+
+ solaris*)
+ no_undefined_flag=' -z defs'
+ if test yes = "$GCC"; then
+ wlarc='$wl'
+ archive_cmds='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+ $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+ else
+ case `$CC -V 2>&1` in
+ *"Compilers 5.0"*)
+ wlarc=''
+ archive_cmds='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+ $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
+ ;;
+ *)
+ wlarc='$wl'
+ archive_cmds='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_expsym_cmds='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+ $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+ ;;
+ esac
+ fi
+ hardcode_libdir_flag_spec='-R$libdir'
+ hardcode_shlibpath_var=no
+ case $host_os in
+ solaris2.[0-5] | solaris2.[0-5].*) ;;
+ *)
+ # The compiler driver will combine and reorder linker options,
+ # but understands '-z linker_flag'. GCC discards it without '$wl',
+ # but is careful enough not to reorder.
+ # Supported since Solaris 2.6 (maybe 2.5.1?)
+ if test yes = "$GCC"; then
+ whole_archive_flag_spec='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
+ else
+ whole_archive_flag_spec='-z allextract$convenience -z defaultextract'
+ fi
+ ;;
+ esac
+ link_all_deplibs=yes
+ ;;
+
+ sunos4*)
+ if test sequent = "$host_vendor"; then
+ # Use $CC to link under sequent, because it throws in some extra .o
+ # files that make .init and .fini sections work.
+ archive_cmds='$CC -G $wl-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+ else
+ archive_cmds='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
+ fi
+ hardcode_libdir_flag_spec='-L$libdir'
+ hardcode_direct=yes
+ hardcode_minus_L=yes
+ hardcode_shlibpath_var=no
+ ;;
+
+ sysv4)
+ case $host_vendor in
+ sni)
+ archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ hardcode_direct=yes # is this really true???
+ ;;
+ siemens)
+ ## LD is ld it makes a PLAMLIB
+ ## CC just makes a GrossModule.
+ archive_cmds='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+ reload_cmds='$CC -r -o $output$reload_objs'
+ hardcode_direct=no
+ ;;
+ motorola)
+ archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ hardcode_direct=no #Motorola manual says yes, but my tests say they lie
+ ;;
+ esac
+ runpath_var='LD_RUN_PATH'
+ hardcode_shlibpath_var=no
+ ;;
+
+ sysv4.3*)
+ archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ hardcode_shlibpath_var=no
+ export_dynamic_flag_spec='-Bexport'
+ ;;
+
+ sysv4*MP*)
+ if test -d /usr/nec; then
+ archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ hardcode_shlibpath_var=no
+ runpath_var=LD_RUN_PATH
+ hardcode_runpath_var=yes
+ ld_shlibs=yes
+ fi
+ ;;
+
+ sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
+ no_undefined_flag='$wl-z,text'
+ archive_cmds_need_lc=no
+ hardcode_shlibpath_var=no
+ runpath_var='LD_RUN_PATH'
+
+ if test yes = "$GCC"; then
+ archive_cmds='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_expsym_cmds='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ else
+ archive_cmds='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_expsym_cmds='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ fi
+ ;;
+
+ sysv5* | sco3.2v5* | sco5v6*)
+ # Note: We CANNOT use -z defs as we might desire, because we do not
+ # link with -lc, and that would cause any symbols used from libc to
+ # always be unresolved, which means just about no library would
+ # ever link correctly. If we're not using GNU ld we use -z text
+ # though, which does catch some bad symbols but isn't as heavy-handed
+ # as -z defs.
+ no_undefined_flag='$wl-z,text'
+ allow_undefined_flag='$wl-z,nodefs'
+ archive_cmds_need_lc=no
+ hardcode_shlibpath_var=no
+ hardcode_libdir_flag_spec='$wl-R,$libdir'
+ hardcode_libdir_separator=':'
+ link_all_deplibs=yes
+ export_dynamic_flag_spec='$wl-Bexport'
+ runpath_var='LD_RUN_PATH'
+
+ if test yes = "$GCC"; then
+ archive_cmds='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_expsym_cmds='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ else
+ archive_cmds='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_expsym_cmds='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ fi
+ ;;
+
+ uts4*)
+ archive_cmds='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ hardcode_libdir_flag_spec='-L$libdir'
+ hardcode_shlibpath_var=no
+ ;;
+
+ *)
+ ld_shlibs=no
+ ;;
+ esac
+
+ if test sni = "$host_vendor"; then
+ case $host in
+ sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+ export_dynamic_flag_spec='$wl-Blargedynsym'
+ ;;
+ esac
+ fi
+ fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs" >&5
+$as_echo "$ld_shlibs" >&6; }
+test no = "$ld_shlibs" && can_build_shared=no
+
+with_gnu_ld=$with_gnu_ld
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$archive_cmds_need_lc" in
+x|xyes)
+ # Assume -lc should be added
+ archive_cmds_need_lc=yes
+
+ if test yes,yes = "$GCC,$enable_shared"; then
+ case $archive_cmds in
+ *'~'*)
+ # FIXME: we may have to deal with multi-command sequences.
+ ;;
+ '$CC '*)
+ # Test whether the compiler implicitly links with -lc since on some
+ # systems, -lgcc has to come before -lc. If gcc already passes -lc
+ # to ld, don't add -lc before -lgcc.
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
+$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; }
+if ${lt_cv_archive_cmds_need_lc+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ $RM conftest*
+ echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+ if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; } 2>conftest.err; then
+ soname=conftest
+ lib=conftest
+ libobjs=conftest.$ac_objext
+ deplibs=
+ wl=$lt_prog_compiler_wl
+ pic_flag=$lt_prog_compiler_pic
+ compiler_flags=-v
+ linker_flags=-v
+ verstring=
+ output_objdir=.
+ libname=conftest
+ lt_save_allow_undefined_flag=$allow_undefined_flag
+ allow_undefined_flag=
+ if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
+ (eval $archive_cmds 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }
+ then
+ lt_cv_archive_cmds_need_lc=no
+ else
+ lt_cv_archive_cmds_need_lc=yes
+ fi
+ allow_undefined_flag=$lt_save_allow_undefined_flag
+ else
+ cat conftest.err 1>&5
+ fi
+ $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc" >&5
+$as_echo "$lt_cv_archive_cmds_need_lc" >&6; }
+ archive_cmds_need_lc=$lt_cv_archive_cmds_need_lc
+ ;;
+ esac
+ fi
+ ;;
+esac
+
+
+
+
+
+
+
+
+
+
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+
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+
+
+
+
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
+$as_echo_n "checking dynamic linker characteristics... " >&6; }
+
+if test yes = "$GCC"; then
+ case $host_os in
+ darwin*) lt_awk_arg='/^libraries:/,/LR/' ;;
+ *) lt_awk_arg='/^libraries:/' ;;
+ esac
+ case $host_os in
+ mingw* | cegcc*) lt_sed_strip_eq='s|=\([A-Za-z]:\)|\1|g' ;;
+ *) lt_sed_strip_eq='s|=/|/|g' ;;
+ esac
+ lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
+ case $lt_search_path_spec in
+ *\;*)
+ # if the path contains ";" then we assume it to be the separator
+ # otherwise default to the standard path separator (i.e. ":") - it is
+ # assumed that no part of a normal pathname contains ";" but that should
+ # okay in the real world where ";" in dirpaths is itself problematic.
+ lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'`
+ ;;
+ *)
+ lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"`
+ ;;
+ esac
+ # Ok, now we have the path, separated by spaces, we can step through it
+ # and add multilib dir if necessary...
+ lt_tmp_lt_search_path_spec=
+ lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+ # ...but if some path component already ends with the multilib dir we assume
+ # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer).
+ case "$lt_multi_os_dir; $lt_search_path_spec " in
+ "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*)
+ lt_multi_os_dir=
+ ;;
+ esac
+ for lt_sys_path in $lt_search_path_spec; do
+ if test -d "$lt_sys_path$lt_multi_os_dir"; then
+ lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir"
+ elif test -n "$lt_multi_os_dir"; then
+ test -d "$lt_sys_path" && \
+ lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
+ fi
+ done
+ lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
+BEGIN {RS = " "; FS = "/|\n";} {
+ lt_foo = "";
+ lt_count = 0;
+ for (lt_i = NF; lt_i > 0; lt_i--) {
+ if ($lt_i != "" && $lt_i != ".") {
+ if ($lt_i == "..") {
+ lt_count++;
+ } else {
+ if (lt_count == 0) {
+ lt_foo = "/" $lt_i lt_foo;
+ } else {
+ lt_count--;
+ }
+ }
+ }
+ }
+ if (lt_foo != "") { lt_freq[lt_foo]++; }
+ if (lt_freq[lt_foo] == 1) { print lt_foo; }
+}'`
+ # AWK program above erroneously prepends '/' to C:/dos/paths
+ # for these hosts.
+ case $host_os in
+ mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
+ $SED 's|/\([A-Za-z]:\)|\1|g'` ;;
+ esac
+ sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
+else
+ sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+fi
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=.so
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+
+
+case $host_os in
+aix3*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ library_names_spec='$libname$release$shared_ext$versuffix $libname.a'
+ shlibpath_var=LIBPATH
+
+ # AIX 3 has no versioning support, so we append a major version to the name.
+ soname_spec='$libname$release$shared_ext$major'
+ ;;
+
+aix[4-9]*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ hardcode_into_libs=yes
+ if test ia64 = "$host_cpu"; then
+ # AIX 5 supports IA64
+ library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext'
+ shlibpath_var=LD_LIBRARY_PATH
+ else
+ # With GCC up to 2.95.x, collect2 would create an import file
+ # for dependence libraries. The import file would start with
+ # the line '#! .'. This would cause the generated library to
+ # depend on '.', always an invalid library. This was fixed in
+ # development snapshots of GCC prior to 3.0.
+ case $host_os in
+ aix4 | aix4.[01] | aix4.[01].*)
+ if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+ echo ' yes '
+ echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then
+ :
+ else
+ can_build_shared=no
+ fi
+ ;;
+ esac
+ # Using Import Files as archive members, it is possible to support
+ # filename-based versioning of shared library archives on AIX. While
+ # this would work for both with and without runtime linking, it will
+ # prevent static linking of such archives. So we do filename-based
+ # shared library versioning with .so extension only, which is used
+ # when both runtime linking and shared linking is enabled.
+ # Unfortunately, runtime linking may impact performance, so we do
+ # not want this to be the default eventually. Also, we use the
+ # versioned .so libs for executables only if there is the -brtl
+ # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only.
+ # To allow for filename-based versioning support, we need to create
+ # libNAME.so.V as an archive file, containing:
+ # *) an Import File, referring to the versioned filename of the
+ # archive as well as the shared archive member, telling the
+ # bitwidth (32 or 64) of that shared object, and providing the
+ # list of exported symbols of that shared object, eventually
+ # decorated with the 'weak' keyword
+ # *) the shared object with the F_LOADONLY flag set, to really avoid
+ # it being seen by the linker.
+ # At run time we better use the real file rather than another symlink,
+ # but for link time we create the symlink libNAME.so -> libNAME.so.V
+
+ case $with_aix_soname,$aix_use_runtimelinking in
+ # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct
+ # soname into executable. Probably we can add versioning support to
+ # collect2, so additional links can be useful in future.
+ aix,yes) # traditional libtool
+ dynamic_linker='AIX unversionable lib.so'
+ # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+ # instead of lib<name>.a to let people know that these are not
+ # typical AIX shared libraries.
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ ;;
+ aix,no) # traditional AIX only
+ dynamic_linker='AIX lib.a(lib.so.V)'
+ # We preserve .a as extension for shared libraries through AIX4.2
+ # and later when we are not doing run time linking.
+ library_names_spec='$libname$release.a $libname.a'
+ soname_spec='$libname$release$shared_ext$major'
+ ;;
+ svr4,*) # full svr4 only
+ dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o)"
+ library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+ # We do not specify a path in Import Files, so LIBPATH fires.
+ shlibpath_overrides_runpath=yes
+ ;;
+ *,yes) # both, prefer svr4
+ dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o), lib.a(lib.so.V)"
+ library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+ # unpreferred sharedlib libNAME.a needs extra handling
+ postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"'
+ postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"'
+ # We do not specify a path in Import Files, so LIBPATH fires.
+ shlibpath_overrides_runpath=yes
+ ;;
+ *,no) # both, prefer aix
+ dynamic_linker="AIX lib.a(lib.so.V), lib.so.V($shared_archive_member_spec.o)"
+ library_names_spec='$libname$release.a $libname.a'
+ soname_spec='$libname$release$shared_ext$major'
+ # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling
+ postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)'
+ postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"'
+ ;;
+ esac
+ shlibpath_var=LIBPATH
+ fi
+ ;;
+
+amigaos*)
+ case $host_cpu in
+ powerpc)
+ # Since July 2007 AmigaOS4 officially supports .so libraries.
+ # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ ;;
+ m68k)
+ library_names_spec='$libname.ixlibrary $libname.a'
+ # Create ${libname}_ixlibrary.a entries in /sys/libs.
+ finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+ ;;
+ esac
+ ;;
+
+beos*)
+ library_names_spec='$libname$shared_ext'
+ dynamic_linker="$host_os ld.so"
+ shlibpath_var=LIBRARY_PATH
+ ;;
+
+bsdi[45]*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+ shlibpath_var=LD_LIBRARY_PATH
+ sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+ sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+ # the default ld.so.conf also contains /usr/contrib/lib and
+ # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+ # libtool to hard-code these into programs
+ ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+ version_type=windows
+ shrext_cmds=.dll
+ need_version=no
+ need_lib_prefix=no
+
+ case $GCC,$cc_basename in
+ yes,*)
+ # gcc
+ library_names_spec='$libname.dll.a'
+ # DLL is installed to $(libdir)/../bin by postinstall_cmds
+ postinstall_cmds='base_file=`basename \$file`~
+ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+ dldir=$destdir/`dirname \$dlpath`~
+ test -d \$dldir || mkdir -p \$dldir~
+ $install_prog $dir/$dlname \$dldir/$dlname~
+ chmod a+x \$dldir/$dlname~
+ if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+ eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+ fi'
+ postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+ dlpath=$dir/\$dldll~
+ $RM \$dlpath'
+ shlibpath_overrides_runpath=yes
+
+ case $host_os in
+ cygwin*)
+ # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+ soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+
+ sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"
+ ;;
+ mingw* | cegcc*)
+ # MinGW DLLs use traditional 'lib' prefix
+ soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+ ;;
+ pw32*)
+ # pw32 DLLs use 'pw' prefix rather than 'lib'
+ library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+ ;;
+ esac
+ dynamic_linker='Win32 ld.exe'
+ ;;
+
+ *,cl*)
+ # Native MSVC
+ libname_spec='$name'
+ soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+ library_names_spec='$libname.dll.lib'
+
+ case $build_os in
+ mingw*)
+ sys_lib_search_path_spec=
+ lt_save_ifs=$IFS
+ IFS=';'
+ for lt_path in $LIB
+ do
+ IFS=$lt_save_ifs
+ # Let DOS variable expansion print the short 8.3 style file name.
+ lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
+ sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
+ done
+ IFS=$lt_save_ifs
+ # Convert to MSYS style.
+ sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'`
+ ;;
+ cygwin*)
+ # Convert to unix form, then to dos form, then back to unix form
+ # but this time dos style (no spaces!) so that the unix form looks
+ # like /cygdrive/c/PROGRA~1:/cygdr...
+ sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
+ sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
+ sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+ ;;
+ *)
+ sys_lib_search_path_spec=$LIB
+ if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then
+ # It is most probably a Windows format PATH.
+ sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+ else
+ sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+ fi
+ # FIXME: find the short name or the path components, as spaces are
+ # common. (e.g. "Program Files" -> "PROGRA~1")
+ ;;
+ esac
+
+ # DLL is installed to $(libdir)/../bin by postinstall_cmds
+ postinstall_cmds='base_file=`basename \$file`~
+ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+ dldir=$destdir/`dirname \$dlpath`~
+ test -d \$dldir || mkdir -p \$dldir~
+ $install_prog $dir/$dlname \$dldir/$dlname'
+ postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+ dlpath=$dir/\$dldll~
+ $RM \$dlpath'
+ shlibpath_overrides_runpath=yes
+ dynamic_linker='Win32 link.exe'
+ ;;
+
+ *)
+ # Assume MSVC wrapper
+ library_names_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext $libname.lib'
+ dynamic_linker='Win32 ld.exe'
+ ;;
+ esac
+ # FIXME: first we should search . and the directory the executable is in
+ shlibpath_var=PATH
+ ;;
+
+darwin* | rhapsody*)
+ dynamic_linker="$host_os dyld"
+ version_type=darwin
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$major$shared_ext $libname$shared_ext'
+ soname_spec='$libname$release$major$shared_ext'
+ shlibpath_overrides_runpath=yes
+ shlibpath_var=DYLD_LIBRARY_PATH
+ shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+
+ sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"
+ sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+ ;;
+
+dgux*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ ;;
+
+freebsd* | dragonfly*)
+ # DragonFly does not have aout. When/if they implement a new
+ # versioning mechanism, adjust this.
+ if test -x /usr/bin/objformat; then
+ objformat=`/usr/bin/objformat`
+ else
+ case $host_os in
+ freebsd[23].*) objformat=aout ;;
+ *) objformat=elf ;;
+ esac
+ fi
+ version_type=freebsd-$objformat
+ case $version_type in
+ freebsd-elf*)
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ need_version=no
+ need_lib_prefix=no
+ ;;
+ freebsd-*)
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+ need_version=yes
+ ;;
+ esac
+ shlibpath_var=LD_LIBRARY_PATH
+ case $host_os in
+ freebsd2.*)
+ shlibpath_overrides_runpath=yes
+ ;;
+ freebsd3.[01]* | freebsdelf3.[01]*)
+ shlibpath_overrides_runpath=yes
+ hardcode_into_libs=yes
+ ;;
+ freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
+ freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
+ shlibpath_overrides_runpath=no
+ hardcode_into_libs=yes
+ ;;
+ *) # from 4.6 on, and DragonFly
+ shlibpath_overrides_runpath=yes
+ hardcode_into_libs=yes
+ ;;
+ esac
+ ;;
+
+haiku*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ dynamic_linker="$host_os runtime_loader"
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LIBRARY_PATH
+ shlibpath_overrides_runpath=no
+ sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
+ hardcode_into_libs=yes
+ ;;
+
+hpux9* | hpux10* | hpux11*)
+ # Give a soname corresponding to the major version so that dld.sl refuses to
+ # link against other versions.
+ version_type=sunos
+ need_lib_prefix=no
+ need_version=no
+ case $host_cpu in
+ ia64*)
+ shrext_cmds='.so'
+ hardcode_into_libs=yes
+ dynamic_linker="$host_os dld.so"
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ if test 32 = "$HPUX_IA64_MODE"; then
+ sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+ sys_lib_dlsearch_path_spec=/usr/lib/hpux32
+ else
+ sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+ sys_lib_dlsearch_path_spec=/usr/lib/hpux64
+ fi
+ ;;
+ hppa*64*)
+ shrext_cmds='.sl'
+ hardcode_into_libs=yes
+ dynamic_linker="$host_os dld.sl"
+ shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+ shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+ sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+ ;;
+ *)
+ shrext_cmds='.sl'
+ dynamic_linker="$host_os dld.sl"
+ shlibpath_var=SHLIB_PATH
+ shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ ;;
+ esac
+ # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+ postinstall_cmds='chmod 555 $lib'
+ # or fails outright, so override atomically:
+ install_override_mode=555
+ ;;
+
+interix[3-9]*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=no
+ hardcode_into_libs=yes
+ ;;
+
+irix5* | irix6* | nonstopux*)
+ case $host_os in
+ nonstopux*) version_type=nonstopux ;;
+ *)
+ if test yes = "$lt_cv_prog_gnu_ld"; then
+ version_type=linux # correct to gnu/linux during the next big refactor
+ else
+ version_type=irix
+ fi ;;
+ esac
+ need_lib_prefix=no
+ need_version=no
+ soname_spec='$libname$release$shared_ext$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext'
+ case $host_os in
+ irix5* | nonstopux*)
+ libsuff= shlibsuff=
+ ;;
+ *)
+ case $LD in # libtool.m4 will add one of these switches to LD
+ *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+ libsuff= shlibsuff= libmagic=32-bit;;
+ *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+ libsuff=32 shlibsuff=N32 libmagic=N32;;
+ *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+ libsuff=64 shlibsuff=64 libmagic=64-bit;;
+ *) libsuff= shlibsuff= libmagic=never-match;;
+ esac
+ ;;
+ esac
+ shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+ shlibpath_overrides_runpath=no
+ sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff"
+ sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff"
+ hardcode_into_libs=yes
+ ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+ dynamic_linker=no
+ ;;
+
+linux*android*)
+ version_type=none # Android doesn't support versioned libraries.
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext'
+ soname_spec='$libname$release$shared_ext'
+ finish_cmds=
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+
+ # This implies no fast_install, which is unacceptable.
+ # Some rework will be needed to allow for fast_install
+ # before this can be enabled.
+ hardcode_into_libs=yes
+
+ dynamic_linker='Android linker'
+ # Don't embed -rpath directories since the linker doesn't support them.
+ hardcode_libdir_flag_spec='-L$libdir'
+ ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=no
+
+ # Some binutils ld are patched to set DT_RUNPATH
+ if ${lt_cv_shlibpath_overrides_runpath+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_shlibpath_overrides_runpath=no
+ save_LDFLAGS=$LDFLAGS
+ save_libdir=$libdir
+ eval "libdir=/foo; wl=\"$lt_prog_compiler_wl\"; \
+ LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec\""
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ if ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then :
+ lt_cv_shlibpath_overrides_runpath=yes
+fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ LDFLAGS=$save_LDFLAGS
+ libdir=$save_libdir
+
+fi
+
+ shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+ # This implies no fast_install, which is unacceptable.
+ # Some rework will be needed to allow for fast_install
+ # before this can be enabled.
+ hardcode_into_libs=yes
+
+ # Add ABI-specific directories to the system library path.
+ sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib"
+
+ # Ideally, we could use ldconfig to report *all* directores which are
+ # searched for libraries, however this is still not possible. Aside from not
+ # being certain /sbin/ldconfig is available, command
+ # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64,
+ # even though it is searched at run-time. Try to do the best guess by
+ # appending ld.so.conf contents (and includes) to the search path.
+ if test -f /etc/ld.so.conf; then
+ lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+ sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra"
+ fi
+
+ # We used to test for /lib/ld.so.1 and disable shared libraries on
+ # powerpc, because MkLinux only supported shared libraries with the
+ # GNU dynamic linker. Since this was broken with cross compilers,
+ # most powerpc-linux boxes support dynamic linking these days and
+ # people can always --disable-shared, the test was removed, and we
+ # assume the GNU/Linux dynamic linker is in use.
+ dynamic_linker='GNU/Linux ld.so'
+ ;;
+
+netbsd*)
+ version_type=sunos
+ need_lib_prefix=no
+ need_version=no
+ if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+ finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+ dynamic_linker='NetBSD (a.out) ld.so'
+ else
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ dynamic_linker='NetBSD ld.elf_so'
+ fi
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ hardcode_into_libs=yes
+ ;;
+
+newsos6)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ ;;
+
+*nto* | *qnx*)
+ version_type=qnx
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=no
+ hardcode_into_libs=yes
+ dynamic_linker='ldqnx.so'
+ ;;
+
+openbsd* | bitrig*)
+ version_type=sunos
+ sys_lib_dlsearch_path_spec=/usr/lib
+ need_lib_prefix=no
+ if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+ need_version=no
+ else
+ need_version=yes
+ fi
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+ finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ ;;
+
+os2*)
+ libname_spec='$name'
+ version_type=windows
+ shrext_cmds=.dll
+ need_version=no
+ need_lib_prefix=no
+ # OS/2 can only load a DLL with a base name of 8 characters or less.
+ soname_spec='`test -n "$os2dllname" && libname="$os2dllname";
+ v=$($ECHO $release$versuffix | tr -d .-);
+ n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _);
+ $ECHO $n$v`$shared_ext'
+ library_names_spec='${libname}_dll.$libext'
+ dynamic_linker='OS/2 ld.exe'
+ shlibpath_var=BEGINLIBPATH
+ sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+ sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+ postinstall_cmds='base_file=`basename \$file`~
+ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~
+ dldir=$destdir/`dirname \$dlpath`~
+ test -d \$dldir || mkdir -p \$dldir~
+ $install_prog $dir/$dlname \$dldir/$dlname~
+ chmod a+x \$dldir/$dlname~
+ if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+ eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+ fi'
+ postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~
+ dlpath=$dir/\$dldll~
+ $RM \$dlpath'
+ ;;
+
+osf3* | osf4* | osf5*)
+ version_type=osf
+ need_lib_prefix=no
+ need_version=no
+ soname_spec='$libname$release$shared_ext$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ shlibpath_var=LD_LIBRARY_PATH
+ sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+ sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+ ;;
+
+rdos*)
+ dynamic_linker=no
+ ;;
+
+solaris*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ hardcode_into_libs=yes
+ # ldd complains unless libraries are executable
+ postinstall_cmds='chmod +x $lib'
+ ;;
+
+sunos4*)
+ version_type=sunos
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+ finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ if test yes = "$with_gnu_ld"; then
+ need_lib_prefix=no
+ fi
+ need_version=yes
+ ;;
+
+sysv4 | sysv4.3*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ case $host_vendor in
+ sni)
+ shlibpath_overrides_runpath=no
+ need_lib_prefix=no
+ runpath_var=LD_RUN_PATH
+ ;;
+ siemens)
+ need_lib_prefix=no
+ ;;
+ motorola)
+ need_lib_prefix=no
+ need_version=no
+ shlibpath_overrides_runpath=no
+ sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+ ;;
+ esac
+ ;;
+
+sysv4*MP*)
+ if test -d /usr/nec; then
+ version_type=linux # correct to gnu/linux during the next big refactor
+ library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext'
+ soname_spec='$libname$shared_ext.$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ fi
+ ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+ version_type=sco
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ hardcode_into_libs=yes
+ if test yes = "$with_gnu_ld"; then
+ sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+ else
+ sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+ case $host_os in
+ sco3.2v5*)
+ sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+ ;;
+ esac
+ fi
+ sys_lib_dlsearch_path_spec='/usr/lib'
+ ;;
+
+tpf*)
+ # TPF is a cross-target only. Preferred cross-host = GNU/Linux.
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=no
+ hardcode_into_libs=yes
+ ;;
+
+uts4*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ ;;
+
+*)
+ dynamic_linker=no
+ ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
+$as_echo "$dynamic_linker" >&6; }
+test no = "$dynamic_linker" && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test yes = "$GCC"; then
+ variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then
+ sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec
+fi
+
+if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then
+ sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec
+fi
+
+# remember unaugmented sys_lib_dlsearch_path content for libtool script decls...
+configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec
+
+# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code
+func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH"
+
+# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool
+configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
+$as_echo_n "checking how to hardcode library paths into programs... " >&6; }
+hardcode_action=
+if test -n "$hardcode_libdir_flag_spec" ||
+ test -n "$runpath_var" ||
+ test yes = "$hardcode_automatic"; then
+
+ # We can hardcode non-existent directories.
+ if test no != "$hardcode_direct" &&
+ # If the only mechanism to avoid hardcoding is shlibpath_var, we
+ # have to relink, otherwise we might link with an installed library
+ # when we should be linking with a yet-to-be-installed one
+ ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, )" &&
+ test no != "$hardcode_minus_L"; then
+ # Linking always hardcodes the temporary library directory.
+ hardcode_action=relink
+ else
+ # We can link without hardcoding, and we can hardcode nonexisting dirs.
+ hardcode_action=immediate
+ fi
+else
+ # We cannot hardcode anything, or else we can only hardcode existing
+ # directories.
+ hardcode_action=unsupported
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action" >&5
+$as_echo "$hardcode_action" >&6; }
+
+if test relink = "$hardcode_action" ||
+ test yes = "$inherit_rpath"; then
+ # Fast installation is not supported
+ enable_fast_install=no
+elif test yes = "$shlibpath_overrides_runpath" ||
+ test no = "$enable_shared"; then
+ # Fast installation is not necessary
+ enable_fast_install=needless
+fi
+
+
+
+
+
+
+ if test yes != "$enable_dlopen"; then
+ enable_dlopen=unknown
+ enable_dlopen_self=unknown
+ enable_dlopen_self_static=unknown
+else
+ lt_cv_dlopen=no
+ lt_cv_dlopen_libs=
+
+ case $host_os in
+ beos*)
+ lt_cv_dlopen=load_add_on
+ lt_cv_dlopen_libs=
+ lt_cv_dlopen_self=yes
+ ;;
+
+ mingw* | pw32* | cegcc*)
+ lt_cv_dlopen=LoadLibrary
+ lt_cv_dlopen_libs=
+ ;;
+
+ cygwin*)
+ lt_cv_dlopen=dlopen
+ lt_cv_dlopen_libs=
+ ;;
+
+ darwin*)
+ # if libdl is installed we need to link against it
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+$as_echo_n "checking for dlopen in -ldl... " >&6; }
+if ${ac_cv_lib_dl_dlopen+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_dl_dlopen=yes
+else
+ ac_cv_lib_dl_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
+if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
+ lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl
+else
+
+ lt_cv_dlopen=dyld
+ lt_cv_dlopen_libs=
+ lt_cv_dlopen_self=yes
+
+fi
+
+ ;;
+
+ tpf*)
+ # Don't try to run any link tests for TPF. We know it's impossible
+ # because TPF is a cross-compiler, and we know how we open DSOs.
+ lt_cv_dlopen=dlopen
+ lt_cv_dlopen_libs=
+ lt_cv_dlopen_self=no
+ ;;
+
+ *)
+ ac_fn_c_check_func "$LINENO" "shl_load" "ac_cv_func_shl_load"
+if test "x$ac_cv_func_shl_load" = xyes; then :
+ lt_cv_dlopen=shl_load
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for shl_load in -ldld" >&5
+$as_echo_n "checking for shl_load in -ldld... " >&6; }
+if ${ac_cv_lib_dld_shl_load+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char shl_load ();
+int
+main ()
+{
+return shl_load ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_dld_shl_load=yes
+else
+ ac_cv_lib_dld_shl_load=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_shl_load" >&5
+$as_echo "$ac_cv_lib_dld_shl_load" >&6; }
+if test "x$ac_cv_lib_dld_shl_load" = xyes; then :
+ lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld
+else
+ ac_fn_c_check_func "$LINENO" "dlopen" "ac_cv_func_dlopen"
+if test "x$ac_cv_func_dlopen" = xyes; then :
+ lt_cv_dlopen=dlopen
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -ldl" >&5
+$as_echo_n "checking for dlopen in -ldl... " >&6; }
+if ${ac_cv_lib_dl_dlopen+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldl $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_dl_dlopen=yes
+else
+ ac_cv_lib_dl_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dl_dlopen" >&5
+$as_echo "$ac_cv_lib_dl_dlopen" >&6; }
+if test "x$ac_cv_lib_dl_dlopen" = xyes; then :
+ lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dlopen in -lsvld" >&5
+$as_echo_n "checking for dlopen in -lsvld... " >&6; }
+if ${ac_cv_lib_svld_dlopen+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lsvld $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlopen ();
+int
+main ()
+{
+return dlopen ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_svld_dlopen=yes
+else
+ ac_cv_lib_svld_dlopen=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_svld_dlopen" >&5
+$as_echo "$ac_cv_lib_svld_dlopen" >&6; }
+if test "x$ac_cv_lib_svld_dlopen" = xyes; then :
+ lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for dld_link in -ldld" >&5
+$as_echo_n "checking for dld_link in -ldld... " >&6; }
+if ${ac_cv_lib_dld_dld_link+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-ldld $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dld_link ();
+int
+main ()
+{
+return dld_link ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_dld_dld_link=yes
+else
+ ac_cv_lib_dld_dld_link=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_dld_dld_link" >&5
+$as_echo "$ac_cv_lib_dld_dld_link" >&6; }
+if test "x$ac_cv_lib_dld_dld_link" = xyes; then :
+ lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+
+fi
+
+ ;;
+ esac
+
+ if test no = "$lt_cv_dlopen"; then
+ enable_dlopen=no
+ else
+ enable_dlopen=yes
+ fi
+
+ case $lt_cv_dlopen in
+ dlopen)
+ save_CPPFLAGS=$CPPFLAGS
+ test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+
+ save_LDFLAGS=$LDFLAGS
+ wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+
+ save_LIBS=$LIBS
+ LIBS="$lt_cv_dlopen_libs $LIBS"
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a program can dlopen itself" >&5
+$as_echo_n "checking whether a program can dlopen itself... " >&6; }
+if ${lt_cv_dlopen_self+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test yes = "$cross_compiling"; then :
+ lt_cv_dlopen_self=cross
+else
+ lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+ lt_status=$lt_dlunknown
+ cat > conftest.$ac_ext <<_LT_EOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+# define LT_DLGLOBAL RTLD_GLOBAL
+#else
+# ifdef DL_GLOBAL
+# define LT_DLGLOBAL DL_GLOBAL
+# else
+# define LT_DLGLOBAL 0
+# endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+ find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+# ifdef RTLD_LAZY
+# define LT_DLLAZY_OR_NOW RTLD_LAZY
+# else
+# ifdef DL_LAZY
+# define LT_DLLAZY_OR_NOW DL_LAZY
+# else
+# ifdef RTLD_NOW
+# define LT_DLLAZY_OR_NOW RTLD_NOW
+# else
+# ifdef DL_NOW
+# define LT_DLLAZY_OR_NOW DL_NOW
+# else
+# define LT_DLLAZY_OR_NOW 0
+# endif
+# endif
+# endif
+# endif
+#endif
+
+/* When -fvisibility=hidden is used, assume the code has been annotated
+ correspondingly for the symbols needed. */
+#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+int fnord () __attribute__((visibility("default")));
+#endif
+
+int fnord () { return 42; }
+int main ()
+{
+ void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+ int status = $lt_dlunknown;
+
+ if (self)
+ {
+ if (dlsym (self,"fnord")) status = $lt_dlno_uscore;
+ else
+ {
+ if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
+ else puts (dlerror ());
+ }
+ /* dlclose (self); */
+ }
+ else
+ puts (dlerror ());
+
+ return status;
+}
+_LT_EOF
+ if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then
+ (./conftest; exit; ) >&5 2>/dev/null
+ lt_status=$?
+ case x$lt_status in
+ x$lt_dlno_uscore) lt_cv_dlopen_self=yes ;;
+ x$lt_dlneed_uscore) lt_cv_dlopen_self=yes ;;
+ x$lt_dlunknown|x*) lt_cv_dlopen_self=no ;;
+ esac
+ else :
+ # compilation failed
+ lt_cv_dlopen_self=no
+ fi
+fi
+rm -fr conftest*
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self" >&5
+$as_echo "$lt_cv_dlopen_self" >&6; }
+
+ if test yes = "$lt_cv_dlopen_self"; then
+ wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether a statically linked program can dlopen itself" >&5
+$as_echo_n "checking whether a statically linked program can dlopen itself... " >&6; }
+if ${lt_cv_dlopen_self_static+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test yes = "$cross_compiling"; then :
+ lt_cv_dlopen_self_static=cross
+else
+ lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+ lt_status=$lt_dlunknown
+ cat > conftest.$ac_ext <<_LT_EOF
+#line $LINENO "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+# define LT_DLGLOBAL RTLD_GLOBAL
+#else
+# ifdef DL_GLOBAL
+# define LT_DLGLOBAL DL_GLOBAL
+# else
+# define LT_DLGLOBAL 0
+# endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+ find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+# ifdef RTLD_LAZY
+# define LT_DLLAZY_OR_NOW RTLD_LAZY
+# else
+# ifdef DL_LAZY
+# define LT_DLLAZY_OR_NOW DL_LAZY
+# else
+# ifdef RTLD_NOW
+# define LT_DLLAZY_OR_NOW RTLD_NOW
+# else
+# ifdef DL_NOW
+# define LT_DLLAZY_OR_NOW DL_NOW
+# else
+# define LT_DLLAZY_OR_NOW 0
+# endif
+# endif
+# endif
+# endif
+#endif
+
+/* When -fvisibility=hidden is used, assume the code has been annotated
+ correspondingly for the symbols needed. */
+#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+int fnord () __attribute__((visibility("default")));
+#endif
+
+int fnord () { return 42; }
+int main ()
+{
+ void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+ int status = $lt_dlunknown;
+
+ if (self)
+ {
+ if (dlsym (self,"fnord")) status = $lt_dlno_uscore;
+ else
+ {
+ if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
+ else puts (dlerror ());
+ }
+ /* dlclose (self); */
+ }
+ else
+ puts (dlerror ());
+
+ return status;
+}
+_LT_EOF
+ if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_link\""; } >&5
+ (eval $ac_link) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; } && test -s "conftest$ac_exeext" 2>/dev/null; then
+ (./conftest; exit; ) >&5 2>/dev/null
+ lt_status=$?
+ case x$lt_status in
+ x$lt_dlno_uscore) lt_cv_dlopen_self_static=yes ;;
+ x$lt_dlneed_uscore) lt_cv_dlopen_self_static=yes ;;
+ x$lt_dlunknown|x*) lt_cv_dlopen_self_static=no ;;
+ esac
+ else :
+ # compilation failed
+ lt_cv_dlopen_self_static=no
+ fi
+fi
+rm -fr conftest*
+
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_dlopen_self_static" >&5
+$as_echo "$lt_cv_dlopen_self_static" >&6; }
+ fi
+
+ CPPFLAGS=$save_CPPFLAGS
+ LDFLAGS=$save_LDFLAGS
+ LIBS=$save_LIBS
+ ;;
+ esac
+
+ case $lt_cv_dlopen_self in
+ yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
+ *) enable_dlopen_self=unknown ;;
+ esac
+
+ case $lt_cv_dlopen_self_static in
+ yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
+ *) enable_dlopen_self_static=unknown ;;
+ esac
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+striplib=
+old_striplib=
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether stripping libraries is possible" >&5
+$as_echo_n "checking whether stripping libraries is possible... " >&6; }
+if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
+ test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
+ test -z "$striplib" && striplib="$STRIP --strip-unneeded"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+else
+# FIXME - insert some real tests, host_os isn't really good enough
+ case $host_os in
+ darwin*)
+ if test -n "$STRIP"; then
+ striplib="$STRIP -x"
+ old_striplib="$STRIP -S"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+ else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ fi
+ ;;
+ *)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ ;;
+ esac
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+ # Report what library types will actually be built
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking if libtool supports shared libraries" >&5
+$as_echo_n "checking if libtool supports shared libraries... " >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $can_build_shared" >&5
+$as_echo "$can_build_shared" >&6; }
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build shared libraries" >&5
+$as_echo_n "checking whether to build shared libraries... " >&6; }
+ test no = "$can_build_shared" && enable_shared=no
+
+ # On AIX, shared libraries and static libraries use the same namespace, and
+ # are all built from PIC.
+ case $host_os in
+ aix3*)
+ test yes = "$enable_shared" && enable_static=no
+ if test -n "$RANLIB"; then
+ archive_cmds="$archive_cmds~\$RANLIB \$lib"
+ postinstall_cmds='$RANLIB $lib'
+ fi
+ ;;
+
+ aix[4-9]*)
+ if test ia64 != "$host_cpu"; then
+ case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
+ yes,aix,yes) ;; # shared object as lib.so file only
+ yes,svr4,*) ;; # shared object as lib.so archive member only
+ yes,*) enable_static=no ;; # shared object in lib.a archive as well
+ esac
+ fi
+ ;;
+ esac
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_shared" >&5
+$as_echo "$enable_shared" >&6; }
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether to build static libraries" >&5
+$as_echo_n "checking whether to build static libraries... " >&6; }
+ # Make sure either enable_shared or enable_static is yes.
+ test yes = "$enable_shared" || enable_static=yes
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_static" >&5
+$as_echo "$enable_static" >&6; }
+
+
+
+
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+CC=$lt_save_CC
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ ac_config_commands="$ac_config_commands libtool"
+
+
+
+
+# Only expand once:
+
+
+
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for a sed that does not truncate output" >&5
+$as_echo_n "checking for a sed that does not truncate output... " >&6; }
+if ${ac_cv_path_SED+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+ for ac_i in 1 2 3 4 5 6 7; do
+ ac_script="$ac_script$as_nl$ac_script"
+ done
+ echo "$ac_script" 2>/dev/null | sed 99q >conftest.sed
+ { ac_script=; unset ac_script;}
+ if test -z "$SED"; then
+ ac_path_SED_found=false
+ # Loop through the user's path and test for each of PROGNAME-LIST
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_prog in sed gsed; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ ac_path_SED="$as_dir/$ac_prog$ac_exec_ext"
+ as_fn_executable_p "$ac_path_SED" || continue
+# Check for GNU ac_path_SED and select it if it is found.
+ # Check for GNU $ac_path_SED
+case `"$ac_path_SED" --version 2>&1` in
+*GNU*)
+ ac_cv_path_SED="$ac_path_SED" ac_path_SED_found=:;;
+*)
+ ac_count=0
+ $as_echo_n 0123456789 >"conftest.in"
+ while :
+ do
+ cat "conftest.in" "conftest.in" >"conftest.tmp"
+ mv "conftest.tmp" "conftest.in"
+ cp "conftest.in" "conftest.nl"
+ $as_echo '' >> "conftest.nl"
+ "$ac_path_SED" -f conftest.sed < "conftest.nl" >"conftest.out" 2>/dev/null || break
+ diff "conftest.out" "conftest.nl" >/dev/null 2>&1 || break
+ as_fn_arith $ac_count + 1 && ac_count=$as_val
+ if test $ac_count -gt ${ac_path_SED_max-0}; then
+ # Best one so far, save it but keep looking for a better one
+ ac_cv_path_SED="$ac_path_SED"
+ ac_path_SED_max=$ac_count
+ fi
+ # 10*(2^10) chars as input seems more than enough
+ test $ac_count -gt 10 && break
+ done
+ rm -f conftest.in conftest.tmp conftest.nl conftest.out;;
+esac
+
+ $ac_path_SED_found && break 3
+ done
+ done
+ done
+IFS=$as_save_IFS
+ if test -z "$ac_cv_path_SED"; then
+ as_fn_error $? "no acceptable sed could be found in \$PATH" "$LINENO" 5
+ fi
+else
+ ac_cv_path_SED=$SED
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_path_SED" >&5
+$as_echo "$ac_cv_path_SED" >&6; }
+ SED="$ac_cv_path_SED"
+ rm -f conftest.sed
+
+
+ case $ac_cv_prog_cc_stdc in #(
+ no) :
+ ac_cv_prog_cc_c99=no; ac_cv_prog_cc_c89=no ;; #(
+ *) :
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C99" >&5
+$as_echo_n "checking for $CC option to accept ISO C99... " >&6; }
+if ${ac_cv_prog_cc_c99+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_cv_prog_cc_c99=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdlib.h>
+#include <wchar.h>
+#include <stdio.h>
+
+// Check varargs macros. These examples are taken from C99 6.10.3.5.
+#define debug(...) fprintf (stderr, __VA_ARGS__)
+#define showlist(...) puts (#__VA_ARGS__)
+#define report(test,...) ((test) ? puts (#test) : printf (__VA_ARGS__))
+static void
+test_varargs_macros (void)
+{
+ int x = 1234;
+ int y = 5678;
+ debug ("Flag");
+ debug ("X = %d\n", x);
+ showlist (The first, second, and third items.);
+ report (x>y, "x is %d but y is %d", x, y);
+}
+
+// Check long long types.
+#define BIG64 18446744073709551615ull
+#define BIG32 4294967295ul
+#define BIG_OK (BIG64 / BIG32 == 4294967297ull && BIG64 % BIG32 == 0)
+#if !BIG_OK
+ your preprocessor is broken;
+#endif
+#if BIG_OK
+#else
+ your preprocessor is broken;
+#endif
+static long long int bignum = -9223372036854775807LL;
+static unsigned long long int ubignum = BIG64;
+
+struct incomplete_array
+{
+ int datasize;
+ double data[];
+};
+
+struct named_init {
+ int number;
+ const wchar_t *name;
+ double average;
+};
+
+typedef const char *ccp;
+
+static inline int
+test_restrict (ccp restrict text)
+{
+ // See if C++-style comments work.
+ // Iterate through items via the restricted pointer.
+ // Also check for declarations in for loops.
+ for (unsigned int i = 0; *(text+i) != '\0'; ++i)
+ continue;
+ return 0;
+}
+
+// Check varargs and va_copy.
+static void
+test_varargs (const char *format, ...)
+{
+ va_list args;
+ va_start (args, format);
+ va_list args_copy;
+ va_copy (args_copy, args);
+
+ const char *str;
+ int number;
+ float fnumber;
+
+ while (*format)
+ {
+ switch (*format++)
+ {
+ case 's': // string
+ str = va_arg (args_copy, const char *);
+ break;
+ case 'd': // int
+ number = va_arg (args_copy, int);
+ break;
+ case 'f': // float
+ fnumber = va_arg (args_copy, double);
+ break;
+ default:
+ break;
+ }
+ }
+ va_end (args_copy);
+ va_end (args);
+}
+
+int
+main ()
+{
+
+ // Check bool.
+ _Bool success = false;
+
+ // Check restrict.
+ if (test_restrict ("String literal") == 0)
+ success = true;
+ char *restrict newvar = "Another string";
+
+ // Check varargs.
+ test_varargs ("s, d' f .", "string", 65, 34.234);
+ test_varargs_macros ();
+
+ // Check flexible array members.
+ struct incomplete_array *ia =
+ malloc (sizeof (struct incomplete_array) + (sizeof (double) * 10));
+ ia->datasize = 10;
+ for (int i = 0; i < ia->datasize; ++i)
+ ia->data[i] = i * 1.234;
+
+ // Check named initializers.
+ struct named_init ni = {
+ .number = 34,
+ .name = L"Test wide string",
+ .average = 543.34343,
+ };
+
+ ni.number = 58;
+
+ int dynamic_array[ni.number];
+ dynamic_array[ni.number - 1] = 543;
+
+ // work around unused variable warnings
+ return (!success || bignum == 0LL || ubignum == 0uLL || newvar[0] == 'x'
+ || dynamic_array[ni.number - 1] != 543);
+
+ ;
+ return 0;
+}
+_ACEOF
+for ac_arg in '' -std=gnu99 -std=c99 -c99 -AC99 -D_STDC_C99= -qlanglvl=extc99
+do
+ CC="$ac_save_CC $ac_arg"
+ if ac_fn_c_try_compile "$LINENO"; then :
+ ac_cv_prog_cc_c99=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext
+ test "x$ac_cv_prog_cc_c99" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c99" in
+ x)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+$as_echo "none needed" >&6; } ;;
+ xno)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;;
+ *)
+ CC="$CC $ac_cv_prog_cc_c99"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c99" >&5
+$as_echo "$ac_cv_prog_cc_c99" >&6; } ;;
+esac
+if test "x$ac_cv_prog_cc_c99" != xno; then :
+ ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c99
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO C89" >&5
+$as_echo_n "checking for $CC option to accept ISO C89... " >&6; }
+if ${ac_cv_prog_cc_c89+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_cv_prog_cc_c89=no
+ac_save_CC=$CC
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <stdarg.h>
+#include <stdio.h>
+struct stat;
+/* Most of the following tests are stolen from RCS 5.7's src/conf.sh. */
+struct buf { int x; };
+FILE * (*rcsopen) (struct buf *, struct stat *, int);
+static char *e (p, i)
+ char **p;
+ int i;
+{
+ return p[i];
+}
+static char *f (char * (*g) (char **, int), char **p, ...)
+{
+ char *s;
+ va_list v;
+ va_start (v,p);
+ s = g (p, va_arg (v,int));
+ va_end (v);
+ return s;
+}
+
+/* OSF 4.0 Compaq cc is some sort of almost-ANSI by default. It has
+ function prototypes and stuff, but not '\xHH' hex character constants.
+ These don't provoke an error unfortunately, instead are silently treated
+ as 'x'. The following induces an error, until -std is added to get
+ proper ANSI mode. Curiously '\x00'!='x' always comes out true, for an
+ array size at least. It's necessary to write '\x00'==0 to get something
+ that's true only with -std. */
+int osf4_cc_array ['\x00' == 0 ? 1 : -1];
+
+/* IBM C 6 for AIX is almost-ANSI by default, but it replaces macro parameters
+ inside strings and character constants. */
+#define FOO(x) 'x'
+int xlc6_cc_array[FOO(a) == 'x' ? 1 : -1];
+
+int test (int i, double x);
+struct s1 {int (*f) (int a);};
+struct s2 {int (*f) (double a);};
+int pairnames (int, char **, FILE *(*)(struct buf *, struct stat *, int), int, int);
+int argc;
+char **argv;
+int
+main ()
+{
+return f (e, argv, 0) != argv[0] || f (e, argv, 1) != argv[1];
+ ;
+ return 0;
+}
+_ACEOF
+for ac_arg in '' -qlanglvl=extc89 -qlanglvl=ansi -std \
+ -Ae "-Aa -D_HPUX_SOURCE" "-Xc -D__EXTENSIONS__"
+do
+ CC="$ac_save_CC $ac_arg"
+ if ac_fn_c_try_compile "$LINENO"; then :
+ ac_cv_prog_cc_c89=$ac_arg
+fi
+rm -f core conftest.err conftest.$ac_objext
+ test "x$ac_cv_prog_cc_c89" != "xno" && break
+done
+rm -f conftest.$ac_ext
+CC=$ac_save_CC
+
+fi
+# AC_CACHE_VAL
+case "x$ac_cv_prog_cc_c89" in
+ x)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+$as_echo "none needed" >&6; } ;;
+ xno)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;;
+ *)
+ CC="$CC $ac_cv_prog_cc_c89"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_c89" >&5
+$as_echo "$ac_cv_prog_cc_c89" >&6; } ;;
+esac
+if test "x$ac_cv_prog_cc_c89" != xno; then :
+ ac_cv_prog_cc_stdc=$ac_cv_prog_cc_c89
+else
+ ac_cv_prog_cc_stdc=no
+fi
+
+fi
+ ;;
+esac
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for $CC option to accept ISO Standard C" >&5
+$as_echo_n "checking for $CC option to accept ISO Standard C... " >&6; }
+ if ${ac_cv_prog_cc_stdc+:} false; then :
+ $as_echo_n "(cached) " >&6
+fi
+
+ case $ac_cv_prog_cc_stdc in #(
+ no) :
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: unsupported" >&5
+$as_echo "unsupported" >&6; } ;; #(
+ '') :
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: none needed" >&5
+$as_echo "none needed" >&6; } ;; #(
+ *) :
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cc_stdc" >&5
+$as_echo "$ac_cv_prog_cc_stdc" >&6; } ;;
+esac
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C preprocessor" >&5
+$as_echo_n "checking how to run the C preprocessor... " >&6; }
+# On Suns, sometimes $CPP names a directory.
+if test -n "$CPP" && test -d "$CPP"; then
+ CPP=
+fi
+if test -z "$CPP"; then
+ if ${ac_cv_prog_CPP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ # Double quotes because CPP needs to be expanded
+ for CPP in "$CC -E" "$CC -E -traditional-cpp" "/lib/cpp"
+ do
+ ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+ # Use a header file that comes with gcc, so configuring glibc
+ # with a fresh cross-compiler works.
+ # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ # <limits.h> exists even on freestanding compilers.
+ # On the NeXT, cc -E runs the code through the compiler's parser,
+ # not just through cpp. "Syntax error" is here to catch this case.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+ Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+ # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+ # OK, works on sane cases. Now check whether nonexistent headers
+ # can be detected and how.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+ # Broken: success on invalid input.
+continue
+else
+ # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+ break
+fi
+
+ done
+ ac_cv_prog_CPP=$CPP
+
+fi
+ CPP=$ac_cv_prog_CPP
+else
+ ac_cv_prog_CPP=$CPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CPP" >&5
+$as_echo "$CPP" >&6; }
+ac_preproc_ok=false
+for ac_c_preproc_warn_flag in '' yes
+do
+ # Use a header file that comes with gcc, so configuring glibc
+ # with a fresh cross-compiler works.
+ # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ # <limits.h> exists even on freestanding compilers.
+ # On the NeXT, cc -E runs the code through the compiler's parser,
+ # not just through cpp. "Syntax error" is here to catch this case.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+ Syntax error
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+
+else
+ # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+ # OK, works on sane cases. Now check whether nonexistent headers
+ # can be detected and how.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_c_try_cpp "$LINENO"; then :
+ # Broken: success on invalid input.
+continue
+else
+ # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C preprocessor \"$CPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for function prototypes" >&5
+$as_echo_n "checking for function prototypes... " >&6; }
+if test "$ac_cv_prog_cc_c89" != no; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+$as_echo "#define PROTOTYPES 1" >>confdefs.h
+
+
+$as_echo "#define __PROTOTYPES 1" >>confdefs.h
+
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+test "x$U" != "x" && as_fn_error $? "Compiler not ANSI compliant" "$LINENO" 5
+
+
+
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+if test -z "$CXX"; then
+ if test -n "$CCC"; then
+ CXX=$CCC
+ else
+ if test -n "$ac_tool_prefix"; then
+ for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+ do
+ # Extract the first word of "$ac_tool_prefix$ac_prog", so it can be a program name with args.
+set dummy $ac_tool_prefix$ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CXX+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$CXX"; then
+ ac_cv_prog_CXX="$CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CXX="$ac_tool_prefix$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+CXX=$ac_cv_prog_CXX
+if test -n "$CXX"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXX" >&5
+$as_echo "$CXX" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ test -n "$CXX" && break
+ done
+fi
+if test -z "$CXX"; then
+ ac_ct_CXX=$CXX
+ for ac_prog in g++ c++ gpp aCC CC cxx cc++ cl.exe FCC KCC RCC xlC_r xlC
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_CXX+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_CXX"; then
+ ac_cv_prog_ac_ct_CXX="$ac_ct_CXX" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_CXX="$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_CXX=$ac_cv_prog_ac_ct_CXX
+if test -n "$ac_ct_CXX"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_CXX" >&5
+$as_echo "$ac_ct_CXX" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ test -n "$ac_ct_CXX" && break
+done
+
+ if test "x$ac_ct_CXX" = x; then
+ CXX="g++"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ CXX=$ac_ct_CXX
+ fi
+fi
+
+ fi
+fi
+# Provide some information about the compiler.
+$as_echo "$as_me:${as_lineno-$LINENO}: checking for C++ compiler version" >&5
+set X $ac_compile
+ac_compiler=$2
+for ac_option in --version -v -V -qversion; do
+ { { ac_try="$ac_compiler $ac_option >&5"
+case "(($ac_try" in
+ *\"* | *\`* | *\\*) ac_try_echo=\$ac_try;;
+ *) ac_try_echo=$ac_try;;
+esac
+eval ac_try_echo="\"\$as_me:${as_lineno-$LINENO}: $ac_try_echo\""
+$as_echo "$ac_try_echo"; } >&5
+ (eval "$ac_compiler $ac_option >&5") 2>conftest.err
+ ac_status=$?
+ if test -s conftest.err; then
+ sed '10a\
+... rest of stderr output deleted ...
+ 10q' conftest.err >conftest.er1
+ cat conftest.er1 >&5
+ fi
+ rm -f conftest.er1 conftest.err
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }
+done
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether we are using the GNU C++ compiler" >&5
+$as_echo_n "checking whether we are using the GNU C++ compiler... " >&6; }
+if ${ac_cv_cxx_compiler_gnu+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+#ifndef __GNUC__
+ choke me
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+ ac_compiler_gnu=yes
+else
+ ac_compiler_gnu=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ac_cv_cxx_compiler_gnu=$ac_compiler_gnu
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_cxx_compiler_gnu" >&5
+$as_echo "$ac_cv_cxx_compiler_gnu" >&6; }
+if test $ac_compiler_gnu = yes; then
+ GXX=yes
+else
+ GXX=
+fi
+ac_test_CXXFLAGS=${CXXFLAGS+set}
+ac_save_CXXFLAGS=$CXXFLAGS
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CXX accepts -g" >&5
+$as_echo_n "checking whether $CXX accepts -g... " >&6; }
+if ${ac_cv_prog_cxx_g+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_save_cxx_werror_flag=$ac_cxx_werror_flag
+ ac_cxx_werror_flag=yes
+ ac_cv_prog_cxx_g=no
+ CXXFLAGS="-g"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+ ac_cv_prog_cxx_g=yes
+else
+ CXXFLAGS=""
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+
+else
+ ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+ CXXFLAGS="-g"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_compile "$LINENO"; then :
+ ac_cv_prog_cxx_g=yes
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+ ac_cxx_werror_flag=$ac_save_cxx_werror_flag
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_prog_cxx_g" >&5
+$as_echo "$ac_cv_prog_cxx_g" >&6; }
+if test "$ac_test_CXXFLAGS" = set; then
+ CXXFLAGS=$ac_save_CXXFLAGS
+elif test $ac_cv_prog_cxx_g = yes; then
+ if test "$GXX" = yes; then
+ CXXFLAGS="-g -O2"
+ else
+ CXXFLAGS="-g"
+ fi
+else
+ if test "$GXX" = yes; then
+ CXXFLAGS="-O2"
+ else
+ CXXFLAGS=
+ fi
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+depcc="$CXX" am_compiler_list=
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking dependency style of $depcc" >&5
+$as_echo_n "checking dependency style of $depcc... " >&6; }
+if ${am_cv_CXX_dependencies_compiler_type+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -z "$AMDEP_TRUE" && test -f "$am_depcomp"; then
+ # We make a subdir and do the tests there. Otherwise we can end up
+ # making bogus files that we don't know about and never remove. For
+ # instance it was reported that on HP-UX the gcc test will end up
+ # making a dummy file named 'D' -- because '-MD' means "put the output
+ # in D".
+ rm -rf conftest.dir
+ mkdir conftest.dir
+ # Copy depcomp to subdir because otherwise we won't find it if we're
+ # using a relative directory.
+ cp "$am_depcomp" conftest.dir
+ cd conftest.dir
+ # We will build objects and dependencies in a subdirectory because
+ # it helps to detect inapplicable dependency modes. For instance
+ # both Tru64's cc and ICC support -MD to output dependencies as a
+ # side effect of compilation, but ICC will put the dependencies in
+ # the current directory while Tru64 will put them in the object
+ # directory.
+ mkdir sub
+
+ am_cv_CXX_dependencies_compiler_type=none
+ if test "$am_compiler_list" = ""; then
+ am_compiler_list=`sed -n 's/^#*\([a-zA-Z0-9]*\))$/\1/p' < ./depcomp`
+ fi
+ am__universal=false
+ case " $depcc " in #(
+ *\ -arch\ *\ -arch\ *) am__universal=true ;;
+ esac
+
+ for depmode in $am_compiler_list; do
+ # Setup a source with many dependencies, because some compilers
+ # like to wrap large dependency lists on column 80 (with \), and
+ # we should not choose a depcomp mode which is confused by this.
+ #
+ # We need to recreate these files for each test, as the compiler may
+ # overwrite some of them when testing with obscure command lines.
+ # This happens at least with the AIX C compiler.
+ : > sub/conftest.c
+ for i in 1 2 3 4 5 6; do
+ echo '#include "conftst'$i'.h"' >> sub/conftest.c
+ # Using ": > sub/conftst$i.h" creates only sub/conftst1.h with
+ # Solaris 10 /bin/sh.
+ echo '/* dummy */' > sub/conftst$i.h
+ done
+ echo "${am__include} ${am__quote}sub/conftest.Po${am__quote}" > confmf
+
+ # We check with '-c' and '-o' for the sake of the "dashmstdout"
+ # mode. It turns out that the SunPro C++ compiler does not properly
+ # handle '-M -o', and we need to detect this. Also, some Intel
+ # versions had trouble with output in subdirs.
+ am__obj=sub/conftest.${OBJEXT-o}
+ am__minus_obj="-o $am__obj"
+ case $depmode in
+ gcc)
+ # This depmode causes a compiler race in universal mode.
+ test "$am__universal" = false || continue
+ ;;
+ nosideeffect)
+ # After this tag, mechanisms are not by side-effect, so they'll
+ # only be used when explicitly requested.
+ if test "x$enable_dependency_tracking" = xyes; then
+ continue
+ else
+ break
+ fi
+ ;;
+ msvc7 | msvc7msys | msvisualcpp | msvcmsys)
+ # This compiler won't grok '-c -o', but also, the minuso test has
+ # not run yet. These depmodes are late enough in the game, and
+ # so weak that their functioning should not be impacted.
+ am__obj=conftest.${OBJEXT-o}
+ am__minus_obj=
+ ;;
+ none) break ;;
+ esac
+ if depmode=$depmode \
+ source=sub/conftest.c object=$am__obj \
+ depfile=sub/conftest.Po tmpdepfile=sub/conftest.TPo \
+ $SHELL ./depcomp $depcc -c $am__minus_obj sub/conftest.c \
+ >/dev/null 2>conftest.err &&
+ grep sub/conftst1.h sub/conftest.Po > /dev/null 2>&1 &&
+ grep sub/conftst6.h sub/conftest.Po > /dev/null 2>&1 &&
+ grep $am__obj sub/conftest.Po > /dev/null 2>&1 &&
+ ${MAKE-make} -s -f confmf > /dev/null 2>&1; then
+ # icc doesn't choke on unknown options, it will just issue warnings
+ # or remarks (even with -Werror). So we grep stderr for any message
+ # that says an option was ignored or not supported.
+ # When given -MP, icc 7.0 and 7.1 complain thusly:
+ # icc: Command line warning: ignoring option '-M'; no argument required
+ # The diagnosis changed in icc 8.0:
+ # icc: Command line remark: option '-MP' not supported
+ if (grep 'ignoring option' conftest.err ||
+ grep 'not supported' conftest.err) >/dev/null 2>&1; then :; else
+ am_cv_CXX_dependencies_compiler_type=$depmode
+ break
+ fi
+ fi
+ done
+
+ cd ..
+ rm -rf conftest.dir
+else
+ am_cv_CXX_dependencies_compiler_type=none
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $am_cv_CXX_dependencies_compiler_type" >&5
+$as_echo "$am_cv_CXX_dependencies_compiler_type" >&6; }
+CXXDEPMODE=depmode=$am_cv_CXX_dependencies_compiler_type
+
+ if
+ test "x$enable_dependency_tracking" != xno \
+ && test "$am_cv_CXX_dependencies_compiler_type" = gcc3; then
+ am__fastdepCXX_TRUE=
+ am__fastdepCXX_FALSE='#'
+else
+ am__fastdepCXX_TRUE='#'
+ am__fastdepCXX_FALSE=
+fi
+
+
+
+
+func_stripname_cnf ()
+{
+ case $2 in
+ .*) func_stripname_result=`$ECHO "$3" | $SED "s%^$1%%; s%\\\\$2\$%%"`;;
+ *) func_stripname_result=`$ECHO "$3" | $SED "s%^$1%%; s%$2\$%%"`;;
+ esac
+} # func_stripname_cnf
+
+ if test -n "$CXX" && ( test no != "$CXX" &&
+ ( (test g++ = "$CXX" && `g++ -v >/dev/null 2>&1` ) ||
+ (test g++ != "$CXX"))); then
+ ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking how to run the C++ preprocessor" >&5
+$as_echo_n "checking how to run the C++ preprocessor... " >&6; }
+if test -z "$CXXCPP"; then
+ if ${ac_cv_prog_CXXCPP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ # Double quotes because CXXCPP needs to be expanded
+ for CXXCPP in "$CXX -E" "/lib/cpp"
+ do
+ ac_preproc_ok=false
+for ac_cxx_preproc_warn_flag in '' yes
+do
+ # Use a header file that comes with gcc, so configuring glibc
+ # with a fresh cross-compiler works.
+ # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ # <limits.h> exists even on freestanding compilers.
+ # On the NeXT, cc -E runs the code through the compiler's parser,
+ # not just through cpp. "Syntax error" is here to catch this case.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+ Syntax error
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+
+else
+ # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+ # OK, works on sane cases. Now check whether nonexistent headers
+ # can be detected and how.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+ # Broken: success on invalid input.
+continue
+else
+ # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+ break
+fi
+
+ done
+ ac_cv_prog_CXXCPP=$CXXCPP
+
+fi
+ CXXCPP=$ac_cv_prog_CXXCPP
+else
+ ac_cv_prog_CXXCPP=$CXXCPP
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $CXXCPP" >&5
+$as_echo "$CXXCPP" >&6; }
+ac_preproc_ok=false
+for ac_cxx_preproc_warn_flag in '' yes
+do
+ # Use a header file that comes with gcc, so configuring glibc
+ # with a fresh cross-compiler works.
+ # Prefer <limits.h> to <assert.h> if __STDC__ is defined, since
+ # <limits.h> exists even on freestanding compilers.
+ # On the NeXT, cc -E runs the code through the compiler's parser,
+ # not just through cpp. "Syntax error" is here to catch this case.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#ifdef __STDC__
+# include <limits.h>
+#else
+# include <assert.h>
+#endif
+ Syntax error
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+
+else
+ # Broken: fails on valid input.
+continue
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+ # OK, works on sane cases. Now check whether nonexistent headers
+ # can be detected and how.
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <ac_nonexistent.h>
+_ACEOF
+if ac_fn_cxx_try_cpp "$LINENO"; then :
+ # Broken: success on invalid input.
+continue
+else
+ # Passes both tests.
+ac_preproc_ok=:
+break
+fi
+rm -f conftest.err conftest.i conftest.$ac_ext
+
+done
+# Because of `break', _AC_PREPROC_IFELSE's cleaning code was skipped.
+rm -f conftest.i conftest.err conftest.$ac_ext
+if $ac_preproc_ok; then :
+
+else
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "C++ preprocessor \"$CXXCPP\" fails sanity check
+See \`config.log' for more details" "$LINENO" 5; }
+fi
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+else
+ _lt_caught_CXX_error=yes
+fi
+
+ac_ext=cpp
+ac_cpp='$CXXCPP $CPPFLAGS'
+ac_compile='$CXX -c $CXXFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CXX -o conftest$ac_exeext $CXXFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_cxx_compiler_gnu
+
+archive_cmds_need_lc_CXX=no
+allow_undefined_flag_CXX=
+always_export_symbols_CXX=no
+archive_expsym_cmds_CXX=
+compiler_needs_object_CXX=no
+export_dynamic_flag_spec_CXX=
+hardcode_direct_CXX=no
+hardcode_direct_absolute_CXX=no
+hardcode_libdir_flag_spec_CXX=
+hardcode_libdir_separator_CXX=
+hardcode_minus_L_CXX=no
+hardcode_shlibpath_var_CXX=unsupported
+hardcode_automatic_CXX=no
+inherit_rpath_CXX=no
+module_cmds_CXX=
+module_expsym_cmds_CXX=
+link_all_deplibs_CXX=unknown
+old_archive_cmds_CXX=$old_archive_cmds
+reload_flag_CXX=$reload_flag
+reload_cmds_CXX=$reload_cmds
+no_undefined_flag_CXX=
+whole_archive_flag_spec_CXX=
+enable_shared_with_static_runtimes_CXX=no
+
+# Source file extension for C++ test sources.
+ac_ext=cpp
+
+# Object file extension for compiled C++ test sources.
+objext=o
+objext_CXX=$objext
+
+# No sense in running all these tests if we already determined that
+# the CXX compiler isn't working. Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test yes != "$_lt_caught_CXX_error"; then
+ # Code to be used in simple compile tests
+ lt_simple_compile_test_code="int some_variable = 0;"
+
+ # Code to be used in simple link tests
+ lt_simple_link_test_code='int main(int, char *[]) { return(0); }'
+
+ # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+
+
+
+
+
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+
+
+ # save warnings/boilerplate of simple test code
+ ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+
+ ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+
+
+ # Allow CC to be a program name with arguments.
+ lt_save_CC=$CC
+ lt_save_CFLAGS=$CFLAGS
+ lt_save_LD=$LD
+ lt_save_GCC=$GCC
+ GCC=$GXX
+ lt_save_with_gnu_ld=$with_gnu_ld
+ lt_save_path_LD=$lt_cv_path_LD
+ if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
+ lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
+ else
+ $as_unset lt_cv_prog_gnu_ld
+ fi
+ if test -n "${lt_cv_path_LDCXX+set}"; then
+ lt_cv_path_LD=$lt_cv_path_LDCXX
+ else
+ $as_unset lt_cv_path_LD
+ fi
+ test -z "${LDCXX+set}" || LD=$LDCXX
+ CC=${CXX-"c++"}
+ CFLAGS=$CXXFLAGS
+ compiler=$CC
+ compiler_CXX=$CC
+ func_cc_basename $compiler
+cc_basename=$func_cc_basename_result
+
+
+ if test -n "$compiler"; then
+ # We don't want -fno-exception when compiling C++ code, so set the
+ # no_builtin_flag separately
+ if test yes = "$GXX"; then
+ lt_prog_compiler_no_builtin_flag_CXX=' -fno-builtin'
+ else
+ lt_prog_compiler_no_builtin_flag_CXX=
+ fi
+
+ if test yes = "$GXX"; then
+ # Set up default GNU C++ configuration
+
+
+
+# Check whether --with-gnu-ld was given.
+if test "${with_gnu_ld+set}" = set; then :
+ withval=$with_gnu_ld; test no = "$withval" || with_gnu_ld=yes
+else
+ with_gnu_ld=no
+fi
+
+ac_prog=ld
+if test yes = "$GCC"; then
+ # Check if gcc -print-prog-name=ld gives a path.
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for ld used by $CC" >&5
+$as_echo_n "checking for ld used by $CC... " >&6; }
+ case $host in
+ *-*-mingw*)
+ # gcc leaves a trailing carriage return, which upsets mingw
+ ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+ *)
+ ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+ esac
+ case $ac_prog in
+ # Accept absolute paths.
+ [\\/]* | ?:[\\/]*)
+ re_direlt='/[^/][^/]*/\.\./'
+ # Canonicalize the pathname of ld
+ ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+ while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+ ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+ done
+ test -z "$LD" && LD=$ac_prog
+ ;;
+ "")
+ # If it fails, then pretend we aren't using GCC.
+ ac_prog=ld
+ ;;
+ *)
+ # If it is relative, then search for the first ld in PATH.
+ with_gnu_ld=unknown
+ ;;
+ esac
+elif test yes = "$with_gnu_ld"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNU ld" >&5
+$as_echo_n "checking for GNU ld... " >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for non-GNU ld" >&5
+$as_echo_n "checking for non-GNU ld... " >&6; }
+fi
+if ${lt_cv_path_LD+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -z "$LD"; then
+ lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+ for ac_dir in $PATH; do
+ IFS=$lt_save_ifs
+ test -z "$ac_dir" && ac_dir=.
+ if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+ lt_cv_path_LD=$ac_dir/$ac_prog
+ # Check to see if the program is GNU ld. I'd rather use --version,
+ # but apparently some variants of GNU ld only accept -v.
+ # Break only if it was the GNU/non-GNU ld that we prefer.
+ case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+ *GNU* | *'with BFD'*)
+ test no != "$with_gnu_ld" && break
+ ;;
+ *)
+ test yes != "$with_gnu_ld" && break
+ ;;
+ esac
+ fi
+ done
+ IFS=$lt_save_ifs
+else
+ lt_cv_path_LD=$LD # Let the user override the test with a path.
+fi
+fi
+
+LD=$lt_cv_path_LD
+if test -n "$LD"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $LD" >&5
+$as_echo "$LD" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+test -z "$LD" && as_fn_error $? "no acceptable ld found in \$PATH" "$LINENO" 5
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the linker ($LD) is GNU ld" >&5
+$as_echo_n "checking if the linker ($LD) is GNU ld... " >&6; }
+if ${lt_cv_prog_gnu_ld+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ # I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+ lt_cv_prog_gnu_ld=yes
+ ;;
+*)
+ lt_cv_prog_gnu_ld=no
+ ;;
+esac
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_gnu_ld" >&5
+$as_echo "$lt_cv_prog_gnu_ld" >&6; }
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+
+
+
+
+
+
+ # Check if GNU C++ uses GNU ld as the underlying linker, since the
+ # archiving commands below assume that GNU ld is being used.
+ if test yes = "$with_gnu_ld"; then
+ archive_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+ archive_expsym_cmds_CXX='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+
+ hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir'
+ export_dynamic_flag_spec_CXX='$wl--export-dynamic'
+
+ # If archive_cmds runs LD, not CC, wlarc should be empty
+ # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
+ # investigate it a little bit more. (MM)
+ wlarc='$wl'
+
+ # ancient GNU ld didn't support --whole-archive et. al.
+ if eval "`$CC -print-prog-name=ld` --help 2>&1" |
+ $GREP 'no-whole-archive' > /dev/null; then
+ whole_archive_flag_spec_CXX=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+ else
+ whole_archive_flag_spec_CXX=
+ fi
+ else
+ with_gnu_ld=no
+ wlarc=
+
+ # A generic and very simple default shared library creation
+ # command for GNU C++ for the case where it uses the native
+ # linker, instead of GNU ld. If possible, this setting should
+ # overridden to take advantage of the native linker features on
+ # the platform it is being used on.
+ archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+ fi
+
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+ else
+ GXX=no
+ with_gnu_ld=no
+ wlarc=
+ fi
+
+ # PORTME: fill in a description of your system's C++ link characteristics
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+ ld_shlibs_CXX=yes
+ case $host_os in
+ aix3*)
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+ aix[4-9]*)
+ if test ia64 = "$host_cpu"; then
+ # On IA64, the linker does run time linking by default, so we don't
+ # have to do anything special.
+ aix_use_runtimelinking=no
+ exp_sym_flag='-Bexport'
+ no_entry_flag=
+ else
+ aix_use_runtimelinking=no
+
+ # Test if we are trying to use run time linking or normal
+ # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+ # have runtime linking enabled, and use it for executables.
+ # For shared libraries, we enable/disable runtime linking
+ # depending on the kind of the shared library created -
+ # when "with_aix_soname,aix_use_runtimelinking" is:
+ # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables
+ # "aix,yes" lib.so shared, rtl:yes, for executables
+ # lib.a static archive
+ # "both,no" lib.so.V(shr.o) shared, rtl:yes
+ # lib.a(lib.so.V) shared, rtl:no, for executables
+ # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
+ # lib.a(lib.so.V) shared, rtl:no
+ # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables
+ # lib.a static archive
+ case $host_os in aix4.[23]|aix4.[23].*|aix[5-9]*)
+ for ld_flag in $LDFLAGS; do
+ case $ld_flag in
+ *-brtl*)
+ aix_use_runtimelinking=yes
+ break
+ ;;
+ esac
+ done
+ if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
+ # With aix-soname=svr4, we create the lib.so.V shared archives only,
+ # so we don't have lib.a shared libs to link our executables.
+ # We have to force runtime linking in this case.
+ aix_use_runtimelinking=yes
+ LDFLAGS="$LDFLAGS -Wl,-brtl"
+ fi
+ ;;
+ esac
+
+ exp_sym_flag='-bexport'
+ no_entry_flag='-bnoentry'
+ fi
+
+ # When large executables or shared objects are built, AIX ld can
+ # have problems creating the table of contents. If linking a library
+ # or program results in "error TOC overflow" add -mminimal-toc to
+ # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not
+ # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+ archive_cmds_CXX=''
+ hardcode_direct_CXX=yes
+ hardcode_direct_absolute_CXX=yes
+ hardcode_libdir_separator_CXX=':'
+ link_all_deplibs_CXX=yes
+ file_list_spec_CXX='$wl-f,'
+ case $with_aix_soname,$aix_use_runtimelinking in
+ aix,*) ;; # no import file
+ svr4,* | *,yes) # use import file
+ # The Import File defines what to hardcode.
+ hardcode_direct_CXX=no
+ hardcode_direct_absolute_CXX=no
+ ;;
+ esac
+
+ if test yes = "$GXX"; then
+ case $host_os in aix4.[012]|aix4.[012].*)
+ # We only want to do this on AIX 4.2 and lower, the check
+ # below for broken collect2 doesn't work under 4.3+
+ collect2name=`$CC -print-prog-name=collect2`
+ if test -f "$collect2name" &&
+ strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+ then
+ # We have reworked collect2
+ :
+ else
+ # We have old collect2
+ hardcode_direct_CXX=unsupported
+ # It fails to find uninstalled libraries when the uninstalled
+ # path is not listed in the libpath. Setting hardcode_minus_L
+ # to unsupported forces relinking
+ hardcode_minus_L_CXX=yes
+ hardcode_libdir_flag_spec_CXX='-L$libdir'
+ hardcode_libdir_separator_CXX=
+ fi
+ esac
+ shared_flag='-shared'
+ if test yes = "$aix_use_runtimelinking"; then
+ shared_flag=$shared_flag' $wl-G'
+ fi
+ # Need to ensure runtime linking is disabled for the traditional
+ # shared library, or the linker may eventually find shared libraries
+ # /with/ Import File - we do not want to mix them.
+ shared_flag_aix='-shared'
+ shared_flag_svr4='-shared $wl-G'
+ else
+ # not using gcc
+ if test ia64 = "$host_cpu"; then
+ # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+ # chokes on -Wl,-G. The following line is correct:
+ shared_flag='-G'
+ else
+ if test yes = "$aix_use_runtimelinking"; then
+ shared_flag='$wl-G'
+ else
+ shared_flag='$wl-bM:SRE'
+ fi
+ shared_flag_aix='$wl-bM:SRE'
+ shared_flag_svr4='$wl-G'
+ fi
+ fi
+
+ export_dynamic_flag_spec_CXX='$wl-bexpall'
+ # It seems that -bexpall does not export symbols beginning with
+ # underscore (_), so it is better to generate a list of symbols to
+ # export.
+ always_export_symbols_CXX=yes
+ if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
+ # Warning - without using the other runtime loading flags (-brtl),
+ # -berok will link without error, but may produce a broken library.
+ # The "-G" linker flag allows undefined symbols.
+ no_undefined_flag_CXX='-bernotok'
+ # Determine the default libpath from the value encoded in an empty
+ # executable.
+ if test set = "${lt_cv_aix_libpath+set}"; then
+ aix_libpath=$lt_cv_aix_libpath
+else
+ if ${lt_cv_aix_libpath__CXX+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+
+ lt_aix_libpath_sed='
+ /Import File Strings/,/^$/ {
+ /^0/ {
+ s/^0 *\([^ ]*\) *$/\1/
+ p
+ }
+ }'
+ lt_cv_aix_libpath__CXX=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+ # Check for a 64-bit object if we didn't find anything.
+ if test -z "$lt_cv_aix_libpath__CXX"; then
+ lt_cv_aix_libpath__CXX=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+ fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ if test -z "$lt_cv_aix_libpath__CXX"; then
+ lt_cv_aix_libpath__CXX=/usr/lib:/lib
+ fi
+
+fi
+
+ aix_libpath=$lt_cv_aix_libpath__CXX
+fi
+
+ hardcode_libdir_flag_spec_CXX='$wl-blibpath:$libdir:'"$aix_libpath"
+
+ archive_expsym_cmds_CXX='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
+ else
+ if test ia64 = "$host_cpu"; then
+ hardcode_libdir_flag_spec_CXX='$wl-R $libdir:/usr/lib:/lib'
+ allow_undefined_flag_CXX="-z nodefs"
+ archive_expsym_cmds_CXX="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
+ else
+ # Determine the default libpath from the value encoded in an
+ # empty executable.
+ if test set = "${lt_cv_aix_libpath+set}"; then
+ aix_libpath=$lt_cv_aix_libpath
+else
+ if ${lt_cv_aix_libpath__CXX+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+
+ lt_aix_libpath_sed='
+ /Import File Strings/,/^$/ {
+ /^0/ {
+ s/^0 *\([^ ]*\) *$/\1/
+ p
+ }
+ }'
+ lt_cv_aix_libpath__CXX=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+ # Check for a 64-bit object if we didn't find anything.
+ if test -z "$lt_cv_aix_libpath__CXX"; then
+ lt_cv_aix_libpath__CXX=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+ fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ if test -z "$lt_cv_aix_libpath__CXX"; then
+ lt_cv_aix_libpath__CXX=/usr/lib:/lib
+ fi
+
+fi
+
+ aix_libpath=$lt_cv_aix_libpath__CXX
+fi
+
+ hardcode_libdir_flag_spec_CXX='$wl-blibpath:$libdir:'"$aix_libpath"
+ # Warning - without using the other run time loading flags,
+ # -berok will link without error, but may produce a broken library.
+ no_undefined_flag_CXX=' $wl-bernotok'
+ allow_undefined_flag_CXX=' $wl-berok'
+ if test yes = "$with_gnu_ld"; then
+ # We only use this code for GNU lds that support --whole-archive.
+ whole_archive_flag_spec_CXX='$wl--whole-archive$convenience $wl--no-whole-archive'
+ else
+ # Exported symbols can be pulled into shared objects from archives
+ whole_archive_flag_spec_CXX='$convenience'
+ fi
+ archive_cmds_need_lc_CXX=yes
+ archive_expsym_cmds_CXX='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
+ # -brtl affects multiple linker settings, -berok does not and is overridden later
+ compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([, ]\\)%-berok\\1%g"`'
+ if test svr4 != "$with_aix_soname"; then
+ # This is similar to how AIX traditionally builds its shared
+ # libraries. Need -bnortl late, we may have -brtl in LDFLAGS.
+ archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
+ fi
+ if test aix != "$with_aix_soname"; then
+ archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
+ else
+ # used by -dlpreopen to get the symbols
+ archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$MV $output_objdir/$realname.d/$soname $output_objdir'
+ fi
+ archive_expsym_cmds_CXX="$archive_expsym_cmds_CXX"'~$RM -r $output_objdir/$realname.d'
+ fi
+ fi
+ ;;
+
+ beos*)
+ if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+ allow_undefined_flag_CXX=unsupported
+ # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+ # support --undefined. This deserves some investigation. FIXME
+ archive_cmds_CXX='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ else
+ ld_shlibs_CXX=no
+ fi
+ ;;
+
+ chorus*)
+ case $cc_basename in
+ *)
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+ esac
+ ;;
+
+ cygwin* | mingw* | pw32* | cegcc*)
+ case $GXX,$cc_basename in
+ ,cl* | no,cl*)
+ # Native MSVC
+ # hardcode_libdir_flag_spec is actually meaningless, as there is
+ # no search path for DLLs.
+ hardcode_libdir_flag_spec_CXX=' '
+ allow_undefined_flag_CXX=unsupported
+ always_export_symbols_CXX=yes
+ file_list_spec_CXX='@'
+ # Tell ltmain to make .lib files, not .a files.
+ libext=lib
+ # Tell ltmain to make .dll files, not .so files.
+ shrext_cmds=.dll
+ # FIXME: Setting linknames here is a bad hack.
+ archive_cmds_CXX='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
+ archive_expsym_cmds_CXX='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then
+ cp "$export_symbols" "$output_objdir/$soname.def";
+ echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
+ else
+ $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
+ fi~
+ $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+ linknames='
+ # The linker will not automatically build a static lib if we build a DLL.
+ # _LT_TAGVAR(old_archive_from_new_cmds, CXX)='true'
+ enable_shared_with_static_runtimes_CXX=yes
+ # Don't use ranlib
+ old_postinstall_cmds_CXX='chmod 644 $oldlib'
+ postlink_cmds_CXX='lt_outputfile="@OUTPUT@"~
+ lt_tool_outputfile="@TOOL_OUTPUT@"~
+ case $lt_outputfile in
+ *.exe|*.EXE) ;;
+ *)
+ lt_outputfile=$lt_outputfile.exe
+ lt_tool_outputfile=$lt_tool_outputfile.exe
+ ;;
+ esac~
+ func_to_tool_file "$lt_outputfile"~
+ if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
+ $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+ $RM "$lt_outputfile.manifest";
+ fi'
+ ;;
+ *)
+ # g++
+ # _LT_TAGVAR(hardcode_libdir_flag_spec, CXX) is actually meaningless,
+ # as there is no search path for DLLs.
+ hardcode_libdir_flag_spec_CXX='-L$libdir'
+ export_dynamic_flag_spec_CXX='$wl--export-all-symbols'
+ allow_undefined_flag_CXX=unsupported
+ always_export_symbols_CXX=no
+ enable_shared_with_static_runtimes_CXX=yes
+
+ if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+ archive_cmds_CXX='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+ # If the export-symbols file already is a .def file, use it as
+ # is; otherwise, prepend EXPORTS...
+ archive_expsym_cmds_CXX='if test DEF = "`$SED -n -e '\''s/^[ ]*//'\'' -e '\''/^\(;.*\)*$/d'\'' -e '\''s/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p'\'' -e q $export_symbols`" ; then
+ cp $export_symbols $output_objdir/$soname.def;
+ else
+ echo EXPORTS > $output_objdir/$soname.def;
+ cat $export_symbols >> $output_objdir/$soname.def;
+ fi~
+ $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+ else
+ ld_shlibs_CXX=no
+ fi
+ ;;
+ esac
+ ;;
+ darwin* | rhapsody*)
+
+
+ archive_cmds_need_lc_CXX=no
+ hardcode_direct_CXX=no
+ hardcode_automatic_CXX=yes
+ hardcode_shlibpath_var_CXX=unsupported
+ if test yes = "$lt_cv_ld_force_load"; then
+ whole_archive_flag_spec_CXX='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+
+ else
+ whole_archive_flag_spec_CXX=''
+ fi
+ link_all_deplibs_CXX=yes
+ allow_undefined_flag_CXX=$_lt_dar_allow_undefined
+ case $cc_basename in
+ ifort*|nagfor*) _lt_dar_can_shared=yes ;;
+ *) _lt_dar_can_shared=$GCC ;;
+ esac
+ if test yes = "$_lt_dar_can_shared"; then
+ output_verbose_link_cmd=func_echo_all
+ archive_cmds_CXX="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil"
+ module_cmds_CXX="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil"
+ archive_expsym_cmds_CXX="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil"
+ module_expsym_cmds_CXX="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil"
+ if test yes != "$lt_cv_apple_cc_single_mod"; then
+ archive_cmds_CXX="\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dsymutil"
+ archive_expsym_cmds_CXX="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dar_export_syms$_lt_dsymutil"
+ fi
+
+ else
+ ld_shlibs_CXX=no
+ fi
+
+ ;;
+
+ os2*)
+ hardcode_libdir_flag_spec_CXX='-L$libdir'
+ hardcode_minus_L_CXX=yes
+ allow_undefined_flag_CXX=unsupported
+ shrext_cmds=.dll
+ archive_cmds_CXX='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ archive_expsym_cmds_CXX='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ prefix_cmds="$SED"~
+ if test EXPORTS = "`$SED 1q $export_symbols`"; then
+ prefix_cmds="$prefix_cmds -e 1d";
+ fi~
+ prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+ cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ old_archive_From_new_cmds_CXX='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+ enable_shared_with_static_runtimes_CXX=yes
+ ;;
+
+ dgux*)
+ case $cc_basename in
+ ec++*)
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+ ghcx*)
+ # Green Hills C++ Compiler
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+ *)
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+ esac
+ ;;
+
+ freebsd2.*)
+ # C++ shared libraries reported to be fairly broken before
+ # switch to ELF
+ ld_shlibs_CXX=no
+ ;;
+
+ freebsd-elf*)
+ archive_cmds_need_lc_CXX=no
+ ;;
+
+ freebsd* | dragonfly*)
+ # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
+ # conventions
+ ld_shlibs_CXX=yes
+ ;;
+
+ haiku*)
+ archive_cmds_CXX='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ link_all_deplibs_CXX=yes
+ ;;
+
+ hpux9*)
+ hardcode_libdir_flag_spec_CXX='$wl+b $wl$libdir'
+ hardcode_libdir_separator_CXX=:
+ export_dynamic_flag_spec_CXX='$wl-E'
+ hardcode_direct_CXX=yes
+ hardcode_minus_L_CXX=yes # Not in the search PATH,
+ # but as the default
+ # location of the library.
+
+ case $cc_basename in
+ CC*)
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+ aCC*)
+ archive_cmds_CXX='$RM $output_objdir/$soname~$CC -b $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ #
+ # There doesn't appear to be a way to prevent this compiler from
+ # explicitly linking system object files so we need to strip them
+ # from the output so that they don't get included in the library
+ # dependencies.
+ output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+ ;;
+ *)
+ if test yes = "$GXX"; then
+ archive_cmds_CXX='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+ else
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ fi
+ ;;
+ esac
+ ;;
+
+ hpux10*|hpux11*)
+ if test no = "$with_gnu_ld"; then
+ hardcode_libdir_flag_spec_CXX='$wl+b $wl$libdir'
+ hardcode_libdir_separator_CXX=:
+
+ case $host_cpu in
+ hppa*64*|ia64*)
+ ;;
+ *)
+ export_dynamic_flag_spec_CXX='$wl-E'
+ ;;
+ esac
+ fi
+ case $host_cpu in
+ hppa*64*|ia64*)
+ hardcode_direct_CXX=no
+ hardcode_shlibpath_var_CXX=no
+ ;;
+ *)
+ hardcode_direct_CXX=yes
+ hardcode_direct_absolute_CXX=yes
+ hardcode_minus_L_CXX=yes # Not in the search PATH,
+ # but as the default
+ # location of the library.
+ ;;
+ esac
+
+ case $cc_basename in
+ CC*)
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+ aCC*)
+ case $host_cpu in
+ hppa*64*)
+ archive_cmds_CXX='$CC -b $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ ;;
+ ia64*)
+ archive_cmds_CXX='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ ;;
+ *)
+ archive_cmds_CXX='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ ;;
+ esac
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ #
+ # There doesn't appear to be a way to prevent this compiler from
+ # explicitly linking system object files so we need to strip them
+ # from the output so that they don't get included in the library
+ # dependencies.
+ output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+ ;;
+ *)
+ if test yes = "$GXX"; then
+ if test no = "$with_gnu_ld"; then
+ case $host_cpu in
+ hppa*64*)
+ archive_cmds_CXX='$CC -shared -nostdlib -fPIC $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ ;;
+ ia64*)
+ archive_cmds_CXX='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ ;;
+ *)
+ archive_cmds_CXX='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ ;;
+ esac
+ fi
+ else
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ fi
+ ;;
+ esac
+ ;;
+
+ interix[3-9]*)
+ hardcode_direct_CXX=no
+ hardcode_shlibpath_var_CXX=no
+ hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir'
+ export_dynamic_flag_spec_CXX='$wl-E'
+ # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+ # Instead, shared libraries are loaded at an image base (0x10000000 by
+ # default) and relocated if they conflict, which is a slow very memory
+ # consuming and fragmenting process. To avoid this, we pick a random,
+ # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+ # time. Moving up from 0x10000000 also allows more sbrk(2) space.
+ archive_cmds_CXX='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+ archive_expsym_cmds_CXX='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+ ;;
+ irix5* | irix6*)
+ case $cc_basename in
+ CC*)
+ # SGI C++
+ archive_cmds_CXX='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+
+ # Archives containing C++ object files must be created using
+ # "CC -ar", where "CC" is the IRIX C++ compiler. This is
+ # necessary to make sure instantiated templates are included
+ # in the archive.
+ old_archive_cmds_CXX='$CC -ar -WR,-u -o $oldlib $oldobjs'
+ ;;
+ *)
+ if test yes = "$GXX"; then
+ if test no = "$with_gnu_ld"; then
+ archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+ else
+ archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` -o $lib'
+ fi
+ fi
+ link_all_deplibs_CXX=yes
+ ;;
+ esac
+ hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir'
+ hardcode_libdir_separator_CXX=:
+ inherit_rpath_CXX=yes
+ ;;
+
+ linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+ case $cc_basename in
+ KCC*)
+ # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+ # KCC will only create a shared library if the output file
+ # ends with ".so" (or ".sl" for HP-UX), so rename the library
+ # to its proper name (with version) after linking.
+ archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+ archive_expsym_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib $wl-retain-symbols-file,$export_symbols; mv \$templib $lib'
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ #
+ # There doesn't appear to be a way to prevent this compiler from
+ # explicitly linking system object files so we need to strip them
+ # from the output so that they don't get included in the library
+ # dependencies.
+ output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+
+ hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir'
+ export_dynamic_flag_spec_CXX='$wl--export-dynamic'
+
+ # Archives containing C++ object files must be created using
+ # "CC -Bstatic", where "CC" is the KAI C++ compiler.
+ old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs'
+ ;;
+ icpc* | ecpc* )
+ # Intel C++
+ with_gnu_ld=yes
+ # version 8.0 and above of icpc choke on multiply defined symbols
+ # if we add $predep_objects and $postdep_objects, however 7.1 and
+ # earlier do not add the objects themselves.
+ case `$CC -V 2>&1` in
+ *"Version 7."*)
+ archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+ archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+ ;;
+ *) # Version 8.0 or newer
+ tmp_idyn=
+ case $host_cpu in
+ ia64*) tmp_idyn=' -i_dynamic';;
+ esac
+ archive_cmds_CXX='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ archive_expsym_cmds_CXX='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+ ;;
+ esac
+ archive_cmds_need_lc_CXX=no
+ hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir'
+ export_dynamic_flag_spec_CXX='$wl--export-dynamic'
+ whole_archive_flag_spec_CXX='$wl--whole-archive$convenience $wl--no-whole-archive'
+ ;;
+ pgCC* | pgcpp*)
+ # Portland Group C++ compiler
+ case `$CC -V` in
+ *pgCC\ [1-5].* | *pgcpp\ [1-5].*)
+ prelink_cmds_CXX='tpldir=Template.dir~
+ rm -rf $tpldir~
+ $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
+ compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
+ old_archive_cmds_CXX='tpldir=Template.dir~
+ rm -rf $tpldir~
+ $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
+ $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
+ $RANLIB $oldlib'
+ archive_cmds_CXX='tpldir=Template.dir~
+ rm -rf $tpldir~
+ $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+ $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+ archive_expsym_cmds_CXX='tpldir=Template.dir~
+ rm -rf $tpldir~
+ $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+ $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+ ;;
+ *) # Version 6 and above use weak symbols
+ archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+ archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+ ;;
+ esac
+
+ hardcode_libdir_flag_spec_CXX='$wl--rpath $wl$libdir'
+ export_dynamic_flag_spec_CXX='$wl--export-dynamic'
+ whole_archive_flag_spec_CXX='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+ ;;
+ cxx*)
+ # Compaq C++
+ archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+ archive_expsym_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib $wl-retain-symbols-file $wl$export_symbols'
+
+ runpath_var=LD_RUN_PATH
+ hardcode_libdir_flag_spec_CXX='-rpath $libdir'
+ hardcode_libdir_separator_CXX=:
+
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ #
+ # There doesn't appear to be a way to prevent this compiler from
+ # explicitly linking system object files so we need to strip them
+ # from the output so that they don't get included in the library
+ # dependencies.
+ output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed'
+ ;;
+ xl* | mpixl* | bgxl*)
+ # IBM XL 8.0 on PPC, with GNU ld
+ hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir'
+ export_dynamic_flag_spec_CXX='$wl--export-dynamic'
+ archive_cmds_CXX='$CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ if test yes = "$supports_anon_versioning"; then
+ archive_expsym_cmds_CXX='echo "{ global:" > $output_objdir/$libname.ver~
+ cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+ echo "local: *; };" >> $output_objdir/$libname.ver~
+ $CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
+ fi
+ ;;
+ *)
+ case `$CC -V 2>&1 | sed 5q` in
+ *Sun\ C*)
+ # Sun C++ 5.9
+ no_undefined_flag_CXX=' -zdefs'
+ archive_cmds_CXX='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ archive_expsym_cmds_CXX='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file $wl$export_symbols'
+ hardcode_libdir_flag_spec_CXX='-R$libdir'
+ whole_archive_flag_spec_CXX='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+ compiler_needs_object_CXX=yes
+
+ # Not sure whether something based on
+ # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1
+ # would be better.
+ output_verbose_link_cmd='func_echo_all'
+
+ # Archives containing C++ object files must be created using
+ # "CC -xar", where "CC" is the Sun C++ compiler. This is
+ # necessary to make sure instantiated templates are included
+ # in the archive.
+ old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs'
+ ;;
+ esac
+ ;;
+ esac
+ ;;
+
+ lynxos*)
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+
+ m88k*)
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+
+ mvs*)
+ case $cc_basename in
+ cxx*)
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+ *)
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+ esac
+ ;;
+
+ netbsd*)
+ if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+ archive_cmds_CXX='$LD -Bshareable -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
+ wlarc=
+ hardcode_libdir_flag_spec_CXX='-R$libdir'
+ hardcode_direct_CXX=yes
+ hardcode_shlibpath_var_CXX=no
+ fi
+ # Workaround some broken pre-1.5 toolchains
+ output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
+ ;;
+
+ *nto* | *qnx*)
+ ld_shlibs_CXX=yes
+ ;;
+
+ openbsd* | bitrig*)
+ if test -f /usr/libexec/ld.so; then
+ hardcode_direct_CXX=yes
+ hardcode_shlibpath_var_CXX=no
+ hardcode_direct_absolute_CXX=yes
+ archive_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+ hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir'
+ if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`"; then
+ archive_expsym_cmds_CXX='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file,$export_symbols -o $lib'
+ export_dynamic_flag_spec_CXX='$wl-E'
+ whole_archive_flag_spec_CXX=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+ fi
+ output_verbose_link_cmd=func_echo_all
+ else
+ ld_shlibs_CXX=no
+ fi
+ ;;
+
+ osf3* | osf4* | osf5*)
+ case $cc_basename in
+ KCC*)
+ # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+ # KCC will only create a shared library if the output file
+ # ends with ".so" (or ".sl" for HP-UX), so rename the library
+ # to its proper name (with version) after linking.
+ archive_cmds_CXX='tempext=`echo $shared_ext | $SED -e '\''s/\([^()0-9A-Za-z{}]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+
+ hardcode_libdir_flag_spec_CXX='$wl-rpath,$libdir'
+ hardcode_libdir_separator_CXX=:
+
+ # Archives containing C++ object files must be created using
+ # the KAI C++ compiler.
+ case $host in
+ osf3*) old_archive_cmds_CXX='$CC -Bstatic -o $oldlib $oldobjs' ;;
+ *) old_archive_cmds_CXX='$CC -o $oldlib $oldobjs' ;;
+ esac
+ ;;
+ RCC*)
+ # Rational C++ 2.4.1
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+ cxx*)
+ case $host in
+ osf3*)
+ allow_undefined_flag_CXX=' $wl-expect_unresolved $wl\*'
+ archive_cmds_CXX='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $soname `test -n "$verstring" && func_echo_all "$wl-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+ hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir'
+ ;;
+ *)
+ allow_undefined_flag_CXX=' -expect_unresolved \*'
+ archive_cmds_CXX='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+ archive_expsym_cmds_CXX='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
+ echo "-hidden">> $lib.exp~
+ $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname $wl-input $wl$lib.exp `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~
+ $RM $lib.exp'
+ hardcode_libdir_flag_spec_CXX='-rpath $libdir'
+ ;;
+ esac
+
+ hardcode_libdir_separator_CXX=:
+
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ #
+ # There doesn't appear to be a way to prevent this compiler from
+ # explicitly linking system object files so we need to strip them
+ # from the output so that they don't get included in the library
+ # dependencies.
+ output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+ ;;
+ *)
+ if test yes,no = "$GXX,$with_gnu_ld"; then
+ allow_undefined_flag_CXX=' $wl-expect_unresolved $wl\*'
+ case $host in
+ osf3*)
+ archive_cmds_CXX='$CC -shared -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+ ;;
+ *)
+ archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+ ;;
+ esac
+
+ hardcode_libdir_flag_spec_CXX='$wl-rpath $wl$libdir'
+ hardcode_libdir_separator_CXX=:
+
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+ else
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ fi
+ ;;
+ esac
+ ;;
+
+ psos*)
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+
+ sunos4*)
+ case $cc_basename in
+ CC*)
+ # Sun C++ 4.x
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+ lcc*)
+ # Lucid
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+ *)
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+ esac
+ ;;
+
+ solaris*)
+ case $cc_basename in
+ CC* | sunCC*)
+ # Sun C++ 4.2, 5.x and Centerline C++
+ archive_cmds_need_lc_CXX=yes
+ no_undefined_flag_CXX=' -zdefs'
+ archive_cmds_CXX='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+ $CC -G$allow_undefined_flag $wl-M $wl$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+ hardcode_libdir_flag_spec_CXX='-R$libdir'
+ hardcode_shlibpath_var_CXX=no
+ case $host_os in
+ solaris2.[0-5] | solaris2.[0-5].*) ;;
+ *)
+ # The compiler driver will combine and reorder linker options,
+ # but understands '-z linker_flag'.
+ # Supported since Solaris 2.6 (maybe 2.5.1?)
+ whole_archive_flag_spec_CXX='-z allextract$convenience -z defaultextract'
+ ;;
+ esac
+ link_all_deplibs_CXX=yes
+
+ output_verbose_link_cmd='func_echo_all'
+
+ # Archives containing C++ object files must be created using
+ # "CC -xar", where "CC" is the Sun C++ compiler. This is
+ # necessary to make sure instantiated templates are included
+ # in the archive.
+ old_archive_cmds_CXX='$CC -xar -o $oldlib $oldobjs'
+ ;;
+ gcx*)
+ # Green Hills C++ Compiler
+ archive_cmds_CXX='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+
+ # The C++ compiler must be used to create the archive.
+ old_archive_cmds_CXX='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
+ ;;
+ *)
+ # GNU C++ compiler with Solaris linker
+ if test yes,no = "$GXX,$with_gnu_ld"; then
+ no_undefined_flag_CXX=' $wl-z ${wl}defs'
+ if $CC --version | $GREP -v '^2\.7' > /dev/null; then
+ archive_cmds_CXX='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+ archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+ $CC -shared $pic_flag -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+ else
+ # g++ 2.7 appears to require '-G' NOT '-shared' on this
+ # platform.
+ archive_cmds_CXX='$CC -G -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+ archive_expsym_cmds_CXX='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+ $CC -G -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+ fi
+
+ hardcode_libdir_flag_spec_CXX='$wl-R $wl$libdir'
+ case $host_os in
+ solaris2.[0-5] | solaris2.[0-5].*) ;;
+ *)
+ whole_archive_flag_spec_CXX='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
+ ;;
+ esac
+ fi
+ ;;
+ esac
+ ;;
+
+ sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[01].[10]* | unixware7* | sco3.2v5.0.[024]*)
+ no_undefined_flag_CXX='$wl-z,text'
+ archive_cmds_need_lc_CXX=no
+ hardcode_shlibpath_var_CXX=no
+ runpath_var='LD_RUN_PATH'
+
+ case $cc_basename in
+ CC*)
+ archive_cmds_CXX='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_expsym_cmds_CXX='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ *)
+ archive_cmds_CXX='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_expsym_cmds_CXX='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ esac
+ ;;
+
+ sysv5* | sco3.2v5* | sco5v6*)
+ # Note: We CANNOT use -z defs as we might desire, because we do not
+ # link with -lc, and that would cause any symbols used from libc to
+ # always be unresolved, which means just about no library would
+ # ever link correctly. If we're not using GNU ld we use -z text
+ # though, which does catch some bad symbols but isn't as heavy-handed
+ # as -z defs.
+ no_undefined_flag_CXX='$wl-z,text'
+ allow_undefined_flag_CXX='$wl-z,nodefs'
+ archive_cmds_need_lc_CXX=no
+ hardcode_shlibpath_var_CXX=no
+ hardcode_libdir_flag_spec_CXX='$wl-R,$libdir'
+ hardcode_libdir_separator_CXX=':'
+ link_all_deplibs_CXX=yes
+ export_dynamic_flag_spec_CXX='$wl-Bexport'
+ runpath_var='LD_RUN_PATH'
+
+ case $cc_basename in
+ CC*)
+ archive_cmds_CXX='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_expsym_cmds_CXX='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ old_archive_cmds_CXX='$CC -Tprelink_objects $oldobjs~
+ '"$old_archive_cmds_CXX"
+ reload_cmds_CXX='$CC -Tprelink_objects $reload_objs~
+ '"$reload_cmds_CXX"
+ ;;
+ *)
+ archive_cmds_CXX='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ archive_expsym_cmds_CXX='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ esac
+ ;;
+
+ tandem*)
+ case $cc_basename in
+ NCC*)
+ # NonStop-UX NCC 3.20
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+ *)
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+ esac
+ ;;
+
+ vxworks*)
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+
+ *)
+ # FIXME: insert proper C++ library support
+ ld_shlibs_CXX=no
+ ;;
+ esac
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
+$as_echo "$ld_shlibs_CXX" >&6; }
+ test no = "$ld_shlibs_CXX" && can_build_shared=no
+
+ GCC_CXX=$GXX
+ LD_CXX=$LD
+
+ ## CAVEAT EMPTOR:
+ ## There is no encapsulation within the following macros, do not change
+ ## the running order or otherwise move them around unless you know exactly
+ ## what you are doing...
+ # Dependencies to place before and after the object being linked:
+predep_objects_CXX=
+postdep_objects_CXX=
+predeps_CXX=
+postdeps_CXX=
+compiler_lib_search_path_CXX=
+
+cat > conftest.$ac_ext <<_LT_EOF
+class Foo
+{
+public:
+ Foo (void) { a = 0; }
+private:
+ int a;
+};
+_LT_EOF
+
+
+_lt_libdeps_save_CFLAGS=$CFLAGS
+case "$CC $CFLAGS " in #(
+*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;;
+*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;;
+*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;;
+esac
+
+if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ # Parse the compiler output and extract the necessary
+ # objects, libraries and library flags.
+
+ # Sentinel used to keep track of whether or not we are before
+ # the conftest object file.
+ pre_test_object_deps_done=no
+
+ for p in `eval "$output_verbose_link_cmd"`; do
+ case $prev$p in
+
+ -L* | -R* | -l*)
+ # Some compilers place space between "-{L,R}" and the path.
+ # Remove the space.
+ if test x-L = "$p" ||
+ test x-R = "$p"; then
+ prev=$p
+ continue
+ fi
+
+ # Expand the sysroot to ease extracting the directories later.
+ if test -z "$prev"; then
+ case $p in
+ -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;;
+ -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;;
+ -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;;
+ esac
+ fi
+ case $p in
+ =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;;
+ esac
+ if test no = "$pre_test_object_deps_done"; then
+ case $prev in
+ -L | -R)
+ # Internal compiler library paths should come after those
+ # provided the user. The postdeps already come after the
+ # user supplied libs so there is no need to process them.
+ if test -z "$compiler_lib_search_path_CXX"; then
+ compiler_lib_search_path_CXX=$prev$p
+ else
+ compiler_lib_search_path_CXX="${compiler_lib_search_path_CXX} $prev$p"
+ fi
+ ;;
+ # The "-l" case would never come before the object being
+ # linked, so don't bother handling this case.
+ esac
+ else
+ if test -z "$postdeps_CXX"; then
+ postdeps_CXX=$prev$p
+ else
+ postdeps_CXX="${postdeps_CXX} $prev$p"
+ fi
+ fi
+ prev=
+ ;;
+
+ *.lto.$objext) ;; # Ignore GCC LTO objects
+ *.$objext)
+ # This assumes that the test object file only shows up
+ # once in the compiler output.
+ if test "$p" = "conftest.$objext"; then
+ pre_test_object_deps_done=yes
+ continue
+ fi
+
+ if test no = "$pre_test_object_deps_done"; then
+ if test -z "$predep_objects_CXX"; then
+ predep_objects_CXX=$p
+ else
+ predep_objects_CXX="$predep_objects_CXX $p"
+ fi
+ else
+ if test -z "$postdep_objects_CXX"; then
+ postdep_objects_CXX=$p
+ else
+ postdep_objects_CXX="$postdep_objects_CXX $p"
+ fi
+ fi
+ ;;
+
+ *) ;; # Ignore the rest.
+
+ esac
+ done
+
+ # Clean up.
+ rm -f a.out a.exe
+else
+ echo "libtool.m4: error: problem compiling CXX test program"
+fi
+
+$RM -f confest.$objext
+CFLAGS=$_lt_libdeps_save_CFLAGS
+
+# PORTME: override above test on systems where it is broken
+case $host_os in
+interix[3-9]*)
+ # Interix 3.5 installs completely hosed .la files for C++, so rather than
+ # hack all around it, let's just trust "g++" to DTRT.
+ predep_objects_CXX=
+ postdep_objects_CXX=
+ postdeps_CXX=
+ ;;
+esac
+
+
+case " $postdeps_CXX " in
+*" -lc "*) archive_cmds_need_lc_CXX=no ;;
+esac
+ compiler_lib_search_dirs_CXX=
+if test -n "${compiler_lib_search_path_CXX}"; then
+ compiler_lib_search_dirs_CXX=`echo " ${compiler_lib_search_path_CXX}" | $SED -e 's! -L! !g' -e 's!^ !!'`
+fi
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ lt_prog_compiler_wl_CXX=
+lt_prog_compiler_pic_CXX=
+lt_prog_compiler_static_CXX=
+
+
+ # C++ specific cases for pic, static, wl, etc.
+ if test yes = "$GXX"; then
+ lt_prog_compiler_wl_CXX='-Wl,'
+ lt_prog_compiler_static_CXX='-static'
+
+ case $host_os in
+ aix*)
+ # All AIX code is PIC.
+ if test ia64 = "$host_cpu"; then
+ # AIX 5 now supports IA64 processor
+ lt_prog_compiler_static_CXX='-Bstatic'
+ fi
+ lt_prog_compiler_pic_CXX='-fPIC'
+ ;;
+
+ amigaos*)
+ case $host_cpu in
+ powerpc)
+ # see comment about AmigaOS4 .so support
+ lt_prog_compiler_pic_CXX='-fPIC'
+ ;;
+ m68k)
+ # FIXME: we need at least 68020 code to build shared libraries, but
+ # adding the '-m68020' flag to GCC prevents building anything better,
+ # like '-m68040'.
+ lt_prog_compiler_pic_CXX='-m68020 -resident32 -malways-restore-a4'
+ ;;
+ esac
+ ;;
+
+ beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+ # PIC is the default for these OSes.
+ ;;
+ mingw* | cygwin* | os2* | pw32* | cegcc*)
+ # This hack is so that the source file can tell whether it is being
+ # built for inclusion in a dll (and should export symbols for example).
+ # Although the cygwin gcc ignores -fPIC, still need this for old-style
+ # (--disable-auto-import) libraries
+ lt_prog_compiler_pic_CXX='-DDLL_EXPORT'
+ case $host_os in
+ os2*)
+ lt_prog_compiler_static_CXX='$wl-static'
+ ;;
+ esac
+ ;;
+ darwin* | rhapsody*)
+ # PIC is the default on this platform
+ # Common symbols not allowed in MH_DYLIB files
+ lt_prog_compiler_pic_CXX='-fno-common'
+ ;;
+ *djgpp*)
+ # DJGPP does not support shared libraries at all
+ lt_prog_compiler_pic_CXX=
+ ;;
+ haiku*)
+ # PIC is the default for Haiku.
+ # The "-static" flag exists, but is broken.
+ lt_prog_compiler_static_CXX=
+ ;;
+ interix[3-9]*)
+ # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+ # Instead, we relocate shared libraries at runtime.
+ ;;
+ sysv4*MP*)
+ if test -d /usr/nec; then
+ lt_prog_compiler_pic_CXX=-Kconform_pic
+ fi
+ ;;
+ hpux*)
+ # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+ # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag
+ # sets the default TLS model and affects inlining.
+ case $host_cpu in
+ hppa*64*)
+ ;;
+ *)
+ lt_prog_compiler_pic_CXX='-fPIC'
+ ;;
+ esac
+ ;;
+ *qnx* | *nto*)
+ # QNX uses GNU C++, but need to define -shared option too, otherwise
+ # it will coredump.
+ lt_prog_compiler_pic_CXX='-fPIC -shared'
+ ;;
+ *)
+ lt_prog_compiler_pic_CXX='-fPIC'
+ ;;
+ esac
+ else
+ case $host_os in
+ aix[4-9]*)
+ # All AIX code is PIC.
+ if test ia64 = "$host_cpu"; then
+ # AIX 5 now supports IA64 processor
+ lt_prog_compiler_static_CXX='-Bstatic'
+ else
+ lt_prog_compiler_static_CXX='-bnso -bI:/lib/syscalls.exp'
+ fi
+ ;;
+ chorus*)
+ case $cc_basename in
+ cxch68*)
+ # Green Hills C++ Compiler
+ # _LT_TAGVAR(lt_prog_compiler_static, CXX)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
+ ;;
+ esac
+ ;;
+ mingw* | cygwin* | os2* | pw32* | cegcc*)
+ # This hack is so that the source file can tell whether it is being
+ # built for inclusion in a dll (and should export symbols for example).
+ lt_prog_compiler_pic_CXX='-DDLL_EXPORT'
+ ;;
+ dgux*)
+ case $cc_basename in
+ ec++*)
+ lt_prog_compiler_pic_CXX='-KPIC'
+ ;;
+ ghcx*)
+ # Green Hills C++ Compiler
+ lt_prog_compiler_pic_CXX='-pic'
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ freebsd* | dragonfly*)
+ # FreeBSD uses GNU C++
+ ;;
+ hpux9* | hpux10* | hpux11*)
+ case $cc_basename in
+ CC*)
+ lt_prog_compiler_wl_CXX='-Wl,'
+ lt_prog_compiler_static_CXX='$wl-a ${wl}archive'
+ if test ia64 != "$host_cpu"; then
+ lt_prog_compiler_pic_CXX='+Z'
+ fi
+ ;;
+ aCC*)
+ lt_prog_compiler_wl_CXX='-Wl,'
+ lt_prog_compiler_static_CXX='$wl-a ${wl}archive'
+ case $host_cpu in
+ hppa*64*|ia64*)
+ # +Z the default
+ ;;
+ *)
+ lt_prog_compiler_pic_CXX='+Z'
+ ;;
+ esac
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ interix*)
+ # This is c89, which is MS Visual C++ (no shared libs)
+ # Anyone wants to do a port?
+ ;;
+ irix5* | irix6* | nonstopux*)
+ case $cc_basename in
+ CC*)
+ lt_prog_compiler_wl_CXX='-Wl,'
+ lt_prog_compiler_static_CXX='-non_shared'
+ # CC pic flag -KPIC is the default.
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+ case $cc_basename in
+ KCC*)
+ # KAI C++ Compiler
+ lt_prog_compiler_wl_CXX='--backend -Wl,'
+ lt_prog_compiler_pic_CXX='-fPIC'
+ ;;
+ ecpc* )
+ # old Intel C++ for x86_64, which still supported -KPIC.
+ lt_prog_compiler_wl_CXX='-Wl,'
+ lt_prog_compiler_pic_CXX='-KPIC'
+ lt_prog_compiler_static_CXX='-static'
+ ;;
+ icpc* )
+ # Intel C++, used to be incompatible with GCC.
+ # ICC 10 doesn't accept -KPIC any more.
+ lt_prog_compiler_wl_CXX='-Wl,'
+ lt_prog_compiler_pic_CXX='-fPIC'
+ lt_prog_compiler_static_CXX='-static'
+ ;;
+ pgCC* | pgcpp*)
+ # Portland Group C++ compiler
+ lt_prog_compiler_wl_CXX='-Wl,'
+ lt_prog_compiler_pic_CXX='-fpic'
+ lt_prog_compiler_static_CXX='-Bstatic'
+ ;;
+ cxx*)
+ # Compaq C++
+ # Make sure the PIC flag is empty. It appears that all Alpha
+ # Linux and Compaq Tru64 Unix objects are PIC.
+ lt_prog_compiler_pic_CXX=
+ lt_prog_compiler_static_CXX='-non_shared'
+ ;;
+ xlc* | xlC* | bgxl[cC]* | mpixl[cC]*)
+ # IBM XL 8.0, 9.0 on PPC and BlueGene
+ lt_prog_compiler_wl_CXX='-Wl,'
+ lt_prog_compiler_pic_CXX='-qpic'
+ lt_prog_compiler_static_CXX='-qstaticlink'
+ ;;
+ *)
+ case `$CC -V 2>&1 | sed 5q` in
+ *Sun\ C*)
+ # Sun C++ 5.9
+ lt_prog_compiler_pic_CXX='-KPIC'
+ lt_prog_compiler_static_CXX='-Bstatic'
+ lt_prog_compiler_wl_CXX='-Qoption ld '
+ ;;
+ esac
+ ;;
+ esac
+ ;;
+ lynxos*)
+ ;;
+ m88k*)
+ ;;
+ mvs*)
+ case $cc_basename in
+ cxx*)
+ lt_prog_compiler_pic_CXX='-W c,exportall'
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ netbsd*)
+ ;;
+ *qnx* | *nto*)
+ # QNX uses GNU C++, but need to define -shared option too, otherwise
+ # it will coredump.
+ lt_prog_compiler_pic_CXX='-fPIC -shared'
+ ;;
+ osf3* | osf4* | osf5*)
+ case $cc_basename in
+ KCC*)
+ lt_prog_compiler_wl_CXX='--backend -Wl,'
+ ;;
+ RCC*)
+ # Rational C++ 2.4.1
+ lt_prog_compiler_pic_CXX='-pic'
+ ;;
+ cxx*)
+ # Digital/Compaq C++
+ lt_prog_compiler_wl_CXX='-Wl,'
+ # Make sure the PIC flag is empty. It appears that all Alpha
+ # Linux and Compaq Tru64 Unix objects are PIC.
+ lt_prog_compiler_pic_CXX=
+ lt_prog_compiler_static_CXX='-non_shared'
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ psos*)
+ ;;
+ solaris*)
+ case $cc_basename in
+ CC* | sunCC*)
+ # Sun C++ 4.2, 5.x and Centerline C++
+ lt_prog_compiler_pic_CXX='-KPIC'
+ lt_prog_compiler_static_CXX='-Bstatic'
+ lt_prog_compiler_wl_CXX='-Qoption ld '
+ ;;
+ gcx*)
+ # Green Hills C++ Compiler
+ lt_prog_compiler_pic_CXX='-PIC'
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ sunos4*)
+ case $cc_basename in
+ CC*)
+ # Sun C++ 4.x
+ lt_prog_compiler_pic_CXX='-pic'
+ lt_prog_compiler_static_CXX='-Bstatic'
+ ;;
+ lcc*)
+ # Lucid
+ lt_prog_compiler_pic_CXX='-pic'
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+ case $cc_basename in
+ CC*)
+ lt_prog_compiler_wl_CXX='-Wl,'
+ lt_prog_compiler_pic_CXX='-KPIC'
+ lt_prog_compiler_static_CXX='-Bstatic'
+ ;;
+ esac
+ ;;
+ tandem*)
+ case $cc_basename in
+ NCC*)
+ # NonStop-UX NCC 3.20
+ lt_prog_compiler_pic_CXX='-KPIC'
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ vxworks*)
+ ;;
+ *)
+ lt_prog_compiler_can_build_shared_CXX=no
+ ;;
+ esac
+ fi
+
+case $host_os in
+ # For platforms that do not support PIC, -DPIC is meaningless:
+ *djgpp*)
+ lt_prog_compiler_pic_CXX=
+ ;;
+ *)
+ lt_prog_compiler_pic_CXX="$lt_prog_compiler_pic_CXX -DPIC"
+ ;;
+esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $compiler option to produce PIC" >&5
+$as_echo_n "checking for $compiler option to produce PIC... " >&6; }
+if ${lt_cv_prog_compiler_pic_CXX+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_prog_compiler_pic_CXX=$lt_prog_compiler_pic_CXX
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_pic_CXX" >&6; }
+lt_prog_compiler_pic_CXX=$lt_cv_prog_compiler_pic_CXX
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$lt_prog_compiler_pic_CXX"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works" >&5
+$as_echo_n "checking if $compiler PIC flag $lt_prog_compiler_pic_CXX works... " >&6; }
+if ${lt_cv_prog_compiler_pic_works_CXX+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_prog_compiler_pic_works_CXX=no
+ ac_outfile=conftest.$ac_objext
+ echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+ lt_compiler_flag="$lt_prog_compiler_pic_CXX -DPIC" ## exclude from sc_useless_quotes_in_assignment
+ # Insert the option either (1) after the last *FLAGS variable, or
+ # (2) before a word containing "conftest.", or (3) at the end.
+ # Note that $ac_compile itself does not contain backslashes and begins
+ # with a dollar sign (not a hyphen), so the echo should work correctly.
+ # The option is referenced via a variable to avoid confusing sed.
+ lt_compile=`echo "$ac_compile" | $SED \
+ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+ -e 's:$: $lt_compiler_flag:'`
+ (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+ (eval "$lt_compile" 2>conftest.err)
+ ac_status=$?
+ cat conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ if (exit $ac_status) && test -s "$ac_outfile"; then
+ # The compiler can only warn and ignore the option if not recognized
+ # So say no if there are warnings other than the usual output.
+ $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+ $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+ if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+ lt_cv_prog_compiler_pic_works_CXX=yes
+ fi
+ fi
+ $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_pic_works_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_pic_works_CXX" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_pic_works_CXX"; then
+ case $lt_prog_compiler_pic_CXX in
+ "" | " "*) ;;
+ *) lt_prog_compiler_pic_CXX=" $lt_prog_compiler_pic_CXX" ;;
+ esac
+else
+ lt_prog_compiler_pic_CXX=
+ lt_prog_compiler_can_build_shared_CXX=no
+fi
+
+fi
+
+
+
+
+
+#
+# Check to make sure the static flag actually works.
+#
+wl=$lt_prog_compiler_wl_CXX eval lt_tmp_static_flag=\"$lt_prog_compiler_static_CXX\"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler static flag $lt_tmp_static_flag works" >&5
+$as_echo_n "checking if $compiler static flag $lt_tmp_static_flag works... " >&6; }
+if ${lt_cv_prog_compiler_static_works_CXX+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_prog_compiler_static_works_CXX=no
+ save_LDFLAGS=$LDFLAGS
+ LDFLAGS="$LDFLAGS $lt_tmp_static_flag"
+ echo "$lt_simple_link_test_code" > conftest.$ac_ext
+ if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+ # The linker can only warn and ignore the option if not recognized
+ # So say no if there are warnings
+ if test -s conftest.err; then
+ # Append any errors to the config.log.
+ cat conftest.err 1>&5
+ $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+ $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+ if diff conftest.exp conftest.er2 >/dev/null; then
+ lt_cv_prog_compiler_static_works_CXX=yes
+ fi
+ else
+ lt_cv_prog_compiler_static_works_CXX=yes
+ fi
+ fi
+ $RM -r conftest*
+ LDFLAGS=$save_LDFLAGS
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_static_works_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_static_works_CXX" >&6; }
+
+if test yes = "$lt_cv_prog_compiler_static_works_CXX"; then
+ :
+else
+ lt_prog_compiler_static_CXX=
+fi
+
+
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o_CXX+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_prog_compiler_c_o_CXX=no
+ $RM -r conftest 2>/dev/null
+ mkdir conftest
+ cd conftest
+ mkdir out
+ echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+ lt_compiler_flag="-o out/conftest2.$ac_objext"
+ # Insert the option either (1) after the last *FLAGS variable, or
+ # (2) before a word containing "conftest.", or (3) at the end.
+ # Note that $ac_compile itself does not contain backslashes and begins
+ # with a dollar sign (not a hyphen), so the echo should work correctly.
+ lt_compile=`echo "$ac_compile" | $SED \
+ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+ -e 's:$: $lt_compiler_flag:'`
+ (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+ (eval "$lt_compile" 2>out/conftest.err)
+ ac_status=$?
+ cat out/conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ if (exit $ac_status) && test -s out/conftest2.$ac_objext
+ then
+ # The compiler can only warn and ignore the option if not recognized
+ # So say no if there are warnings
+ $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+ $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+ if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+ lt_cv_prog_compiler_c_o_CXX=yes
+ fi
+ fi
+ chmod u+w . 2>&5
+ $RM conftest*
+ # SGI C++ compiler will create directory out/ii_files/ for
+ # template instantiation
+ test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+ $RM out/* && rmdir out
+ cd ..
+ $RM -r conftest
+ $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_c_o_CXX" >&6; }
+
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $compiler supports -c -o file.$ac_objext" >&5
+$as_echo_n "checking if $compiler supports -c -o file.$ac_objext... " >&6; }
+if ${lt_cv_prog_compiler_c_o_CXX+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_prog_compiler_c_o_CXX=no
+ $RM -r conftest 2>/dev/null
+ mkdir conftest
+ cd conftest
+ mkdir out
+ echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+ lt_compiler_flag="-o out/conftest2.$ac_objext"
+ # Insert the option either (1) after the last *FLAGS variable, or
+ # (2) before a word containing "conftest.", or (3) at the end.
+ # Note that $ac_compile itself does not contain backslashes and begins
+ # with a dollar sign (not a hyphen), so the echo should work correctly.
+ lt_compile=`echo "$ac_compile" | $SED \
+ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+ -e 's: [^ ]*conftest\.: $lt_compiler_flag&:; t' \
+ -e 's:$: $lt_compiler_flag:'`
+ (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&5)
+ (eval "$lt_compile" 2>out/conftest.err)
+ ac_status=$?
+ cat out/conftest.err >&5
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ if (exit $ac_status) && test -s out/conftest2.$ac_objext
+ then
+ # The compiler can only warn and ignore the option if not recognized
+ # So say no if there are warnings
+ $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+ $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+ if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+ lt_cv_prog_compiler_c_o_CXX=yes
+ fi
+ fi
+ chmod u+w . 2>&5
+ $RM conftest*
+ # SGI C++ compiler will create directory out/ii_files/ for
+ # template instantiation
+ test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+ $RM out/* && rmdir out
+ cd ..
+ $RM -r conftest
+ $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_prog_compiler_c_o_CXX" >&5
+$as_echo "$lt_cv_prog_compiler_c_o_CXX" >&6; }
+
+
+
+
+hard_links=nottested
+if test no = "$lt_cv_prog_compiler_c_o_CXX" && test no != "$need_locks"; then
+ # do not overwrite the value of need_locks provided by the user
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we can lock with hard links" >&5
+$as_echo_n "checking if we can lock with hard links... " >&6; }
+ hard_links=yes
+ $RM conftest*
+ ln conftest.a conftest.b 2>/dev/null && hard_links=no
+ touch conftest.a
+ ln conftest.a conftest.b 2>&5 || hard_links=no
+ ln conftest.a conftest.b 2>/dev/null && hard_links=no
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $hard_links" >&5
+$as_echo "$hard_links" >&6; }
+ if test no = "$hard_links"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&5
+$as_echo "$as_me: WARNING: '$CC' does not support '-c -o', so 'make -j' may be unsafe" >&2;}
+ need_locks=warn
+ fi
+else
+ need_locks=no
+fi
+
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the $compiler linker ($LD) supports shared libraries" >&5
+$as_echo_n "checking whether the $compiler linker ($LD) supports shared libraries... " >&6; }
+
+ export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+ exclude_expsyms_CXX='_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*'
+ case $host_os in
+ aix[4-9]*)
+ # If we're using GNU nm, then we don't want the "-C" option.
+ # -C means demangle to GNU nm, but means don't demangle to AIX nm.
+ # Without the "-l" option, or with the "-B" option, AIX nm treats
+ # weak defined symbols like other global defined symbols, whereas
+ # GNU nm marks them as "W".
+ # While the 'weak' keyword is ignored in the Export File, we need
+ # it in the Import File for the 'aix-soname' feature, so we have
+ # to replace the "-B" option with "-P" for AIX nm.
+ if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+ export_symbols_cmds_CXX='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && (substr(\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
+ else
+ export_symbols_cmds_CXX='`func_echo_all $NM | $SED -e '\''s/B\([^B]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && (substr(\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
+ fi
+ ;;
+ pw32*)
+ export_symbols_cmds_CXX=$ltdll_cmds
+ ;;
+ cygwin* | mingw* | cegcc*)
+ case $cc_basename in
+ cl*)
+ exclude_expsyms_CXX='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+ ;;
+ *)
+ export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[BCDGRS][ ]/s/.*[ ]\([^ ]*\)/\1 DATA/;s/^.*[ ]__nm__\([^ ]*\)[ ][^ ]*/\1 DATA/;/^I[ ]/d;/^[AITW][ ]/s/.* //'\'' | sort | uniq > $export_symbols'
+ exclude_expsyms_CXX='[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname'
+ ;;
+ esac
+ ;;
+ *)
+ export_symbols_cmds_CXX='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+ ;;
+ esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ld_shlibs_CXX" >&5
+$as_echo "$ld_shlibs_CXX" >&6; }
+test no = "$ld_shlibs_CXX" && can_build_shared=no
+
+with_gnu_ld_CXX=$with_gnu_ld
+
+
+
+
+
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$archive_cmds_need_lc_CXX" in
+x|xyes)
+ # Assume -lc should be added
+ archive_cmds_need_lc_CXX=yes
+
+ if test yes,yes = "$GCC,$enable_shared"; then
+ case $archive_cmds_CXX in
+ *'~'*)
+ # FIXME: we may have to deal with multi-command sequences.
+ ;;
+ '$CC '*)
+ # Test whether the compiler implicitly links with -lc since on some
+ # systems, -lgcc has to come before -lc. If gcc already passes -lc
+ # to ld, don't add -lc before -lgcc.
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether -lc should be explicitly linked in" >&5
+$as_echo_n "checking whether -lc should be explicitly linked in... " >&6; }
+if ${lt_cv_archive_cmds_need_lc_CXX+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ $RM conftest*
+ echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+ if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$ac_compile\""; } >&5
+ (eval $ac_compile) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; } 2>conftest.err; then
+ soname=conftest
+ lib=conftest
+ libobjs=conftest.$ac_objext
+ deplibs=
+ wl=$lt_prog_compiler_wl_CXX
+ pic_flag=$lt_prog_compiler_pic_CXX
+ compiler_flags=-v
+ linker_flags=-v
+ verstring=
+ output_objdir=.
+ libname=conftest
+ lt_save_allow_undefined_flag=$allow_undefined_flag_CXX
+ allow_undefined_flag_CXX=
+ if { { eval echo "\"\$as_me\":${as_lineno-$LINENO}: \"$archive_cmds_CXX 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1\""; } >&5
+ (eval $archive_cmds_CXX 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1) 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }
+ then
+ lt_cv_archive_cmds_need_lc_CXX=no
+ else
+ lt_cv_archive_cmds_need_lc_CXX=yes
+ fi
+ allow_undefined_flag_CXX=$lt_save_allow_undefined_flag
+ else
+ cat conftest.err 1>&5
+ fi
+ $RM conftest*
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $lt_cv_archive_cmds_need_lc_CXX" >&5
+$as_echo "$lt_cv_archive_cmds_need_lc_CXX" >&6; }
+ archive_cmds_need_lc_CXX=$lt_cv_archive_cmds_need_lc_CXX
+ ;;
+ esac
+ fi
+ ;;
+esac
+
+
+
+
+
+
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+
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+
+
+
+
+
+
+
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking dynamic linker characteristics" >&5
+$as_echo_n "checking dynamic linker characteristics... " >&6; }
+
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=.so
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+
+
+case $host_os in
+aix3*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ library_names_spec='$libname$release$shared_ext$versuffix $libname.a'
+ shlibpath_var=LIBPATH
+
+ # AIX 3 has no versioning support, so we append a major version to the name.
+ soname_spec='$libname$release$shared_ext$major'
+ ;;
+
+aix[4-9]*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ hardcode_into_libs=yes
+ if test ia64 = "$host_cpu"; then
+ # AIX 5 supports IA64
+ library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext'
+ shlibpath_var=LD_LIBRARY_PATH
+ else
+ # With GCC up to 2.95.x, collect2 would create an import file
+ # for dependence libraries. The import file would start with
+ # the line '#! .'. This would cause the generated library to
+ # depend on '.', always an invalid library. This was fixed in
+ # development snapshots of GCC prior to 3.0.
+ case $host_os in
+ aix4 | aix4.[01] | aix4.[01].*)
+ if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+ echo ' yes '
+ echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then
+ :
+ else
+ can_build_shared=no
+ fi
+ ;;
+ esac
+ # Using Import Files as archive members, it is possible to support
+ # filename-based versioning of shared library archives on AIX. While
+ # this would work for both with and without runtime linking, it will
+ # prevent static linking of such archives. So we do filename-based
+ # shared library versioning with .so extension only, which is used
+ # when both runtime linking and shared linking is enabled.
+ # Unfortunately, runtime linking may impact performance, so we do
+ # not want this to be the default eventually. Also, we use the
+ # versioned .so libs for executables only if there is the -brtl
+ # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only.
+ # To allow for filename-based versioning support, we need to create
+ # libNAME.so.V as an archive file, containing:
+ # *) an Import File, referring to the versioned filename of the
+ # archive as well as the shared archive member, telling the
+ # bitwidth (32 or 64) of that shared object, and providing the
+ # list of exported symbols of that shared object, eventually
+ # decorated with the 'weak' keyword
+ # *) the shared object with the F_LOADONLY flag set, to really avoid
+ # it being seen by the linker.
+ # At run time we better use the real file rather than another symlink,
+ # but for link time we create the symlink libNAME.so -> libNAME.so.V
+
+ case $with_aix_soname,$aix_use_runtimelinking in
+ # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct
+ # soname into executable. Probably we can add versioning support to
+ # collect2, so additional links can be useful in future.
+ aix,yes) # traditional libtool
+ dynamic_linker='AIX unversionable lib.so'
+ # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+ # instead of lib<name>.a to let people know that these are not
+ # typical AIX shared libraries.
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ ;;
+ aix,no) # traditional AIX only
+ dynamic_linker='AIX lib.a(lib.so.V)'
+ # We preserve .a as extension for shared libraries through AIX4.2
+ # and later when we are not doing run time linking.
+ library_names_spec='$libname$release.a $libname.a'
+ soname_spec='$libname$release$shared_ext$major'
+ ;;
+ svr4,*) # full svr4 only
+ dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o)"
+ library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+ # We do not specify a path in Import Files, so LIBPATH fires.
+ shlibpath_overrides_runpath=yes
+ ;;
+ *,yes) # both, prefer svr4
+ dynamic_linker="AIX lib.so.V($shared_archive_member_spec.o), lib.a(lib.so.V)"
+ library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+ # unpreferred sharedlib libNAME.a needs extra handling
+ postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"'
+ postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"'
+ # We do not specify a path in Import Files, so LIBPATH fires.
+ shlibpath_overrides_runpath=yes
+ ;;
+ *,no) # both, prefer aix
+ dynamic_linker="AIX lib.a(lib.so.V), lib.so.V($shared_archive_member_spec.o)"
+ library_names_spec='$libname$release.a $libname.a'
+ soname_spec='$libname$release$shared_ext$major'
+ # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling
+ postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)'
+ postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"'
+ ;;
+ esac
+ shlibpath_var=LIBPATH
+ fi
+ ;;
+
+amigaos*)
+ case $host_cpu in
+ powerpc)
+ # Since July 2007 AmigaOS4 officially supports .so libraries.
+ # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ ;;
+ m68k)
+ library_names_spec='$libname.ixlibrary $libname.a'
+ # Create ${libname}_ixlibrary.a entries in /sys/libs.
+ finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([^/]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+ ;;
+ esac
+ ;;
+
+beos*)
+ library_names_spec='$libname$shared_ext'
+ dynamic_linker="$host_os ld.so"
+ shlibpath_var=LIBRARY_PATH
+ ;;
+
+bsdi[45]*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+ shlibpath_var=LD_LIBRARY_PATH
+ sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+ sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+ # the default ld.so.conf also contains /usr/contrib/lib and
+ # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+ # libtool to hard-code these into programs
+ ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+ version_type=windows
+ shrext_cmds=.dll
+ need_version=no
+ need_lib_prefix=no
+
+ case $GCC,$cc_basename in
+ yes,*)
+ # gcc
+ library_names_spec='$libname.dll.a'
+ # DLL is installed to $(libdir)/../bin by postinstall_cmds
+ postinstall_cmds='base_file=`basename \$file`~
+ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+ dldir=$destdir/`dirname \$dlpath`~
+ test -d \$dldir || mkdir -p \$dldir~
+ $install_prog $dir/$dlname \$dldir/$dlname~
+ chmod a+x \$dldir/$dlname~
+ if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+ eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+ fi'
+ postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+ dlpath=$dir/\$dldll~
+ $RM \$dlpath'
+ shlibpath_overrides_runpath=yes
+
+ case $host_os in
+ cygwin*)
+ # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+ soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+
+ ;;
+ mingw* | cegcc*)
+ # MinGW DLLs use traditional 'lib' prefix
+ soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+ ;;
+ pw32*)
+ # pw32 DLLs use 'pw' prefix rather than 'lib'
+ library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+ ;;
+ esac
+ dynamic_linker='Win32 ld.exe'
+ ;;
+
+ *,cl*)
+ # Native MSVC
+ libname_spec='$name'
+ soname_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext'
+ library_names_spec='$libname.dll.lib'
+
+ case $build_os in
+ mingw*)
+ sys_lib_search_path_spec=
+ lt_save_ifs=$IFS
+ IFS=';'
+ for lt_path in $LIB
+ do
+ IFS=$lt_save_ifs
+ # Let DOS variable expansion print the short 8.3 style file name.
+ lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
+ sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
+ done
+ IFS=$lt_save_ifs
+ # Convert to MSYS style.
+ sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([a-zA-Z]\\):| /\\1|g' -e 's|^ ||'`
+ ;;
+ cygwin*)
+ # Convert to unix form, then to dos form, then back to unix form
+ # but this time dos style (no spaces!) so that the unix form looks
+ # like /cygdrive/c/PROGRA~1:/cygdr...
+ sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
+ sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
+ sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+ ;;
+ *)
+ sys_lib_search_path_spec=$LIB
+ if $ECHO "$sys_lib_search_path_spec" | $GREP ';[c-zC-Z]:/' >/dev/null; then
+ # It is most probably a Windows format PATH.
+ sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+ else
+ sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+ fi
+ # FIXME: find the short name or the path components, as spaces are
+ # common. (e.g. "Program Files" -> "PROGRA~1")
+ ;;
+ esac
+
+ # DLL is installed to $(libdir)/../bin by postinstall_cmds
+ postinstall_cmds='base_file=`basename \$file`~
+ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+ dldir=$destdir/`dirname \$dlpath`~
+ test -d \$dldir || mkdir -p \$dldir~
+ $install_prog $dir/$dlname \$dldir/$dlname'
+ postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+ dlpath=$dir/\$dldll~
+ $RM \$dlpath'
+ shlibpath_overrides_runpath=yes
+ dynamic_linker='Win32 link.exe'
+ ;;
+
+ *)
+ # Assume MSVC wrapper
+ library_names_spec='$libname`echo $release | $SED -e 's/[.]/-/g'`$versuffix$shared_ext $libname.lib'
+ dynamic_linker='Win32 ld.exe'
+ ;;
+ esac
+ # FIXME: first we should search . and the directory the executable is in
+ shlibpath_var=PATH
+ ;;
+
+darwin* | rhapsody*)
+ dynamic_linker="$host_os dyld"
+ version_type=darwin
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$major$shared_ext $libname$shared_ext'
+ soname_spec='$libname$release$major$shared_ext'
+ shlibpath_overrides_runpath=yes
+ shlibpath_var=DYLD_LIBRARY_PATH
+ shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+
+ sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+ ;;
+
+dgux*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ ;;
+
+freebsd* | dragonfly*)
+ # DragonFly does not have aout. When/if they implement a new
+ # versioning mechanism, adjust this.
+ if test -x /usr/bin/objformat; then
+ objformat=`/usr/bin/objformat`
+ else
+ case $host_os in
+ freebsd[23].*) objformat=aout ;;
+ *) objformat=elf ;;
+ esac
+ fi
+ version_type=freebsd-$objformat
+ case $version_type in
+ freebsd-elf*)
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ need_version=no
+ need_lib_prefix=no
+ ;;
+ freebsd-*)
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+ need_version=yes
+ ;;
+ esac
+ shlibpath_var=LD_LIBRARY_PATH
+ case $host_os in
+ freebsd2.*)
+ shlibpath_overrides_runpath=yes
+ ;;
+ freebsd3.[01]* | freebsdelf3.[01]*)
+ shlibpath_overrides_runpath=yes
+ hardcode_into_libs=yes
+ ;;
+ freebsd3.[2-9]* | freebsdelf3.[2-9]* | \
+ freebsd4.[0-5] | freebsdelf4.[0-5] | freebsd4.1.1 | freebsdelf4.1.1)
+ shlibpath_overrides_runpath=no
+ hardcode_into_libs=yes
+ ;;
+ *) # from 4.6 on, and DragonFly
+ shlibpath_overrides_runpath=yes
+ hardcode_into_libs=yes
+ ;;
+ esac
+ ;;
+
+haiku*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ dynamic_linker="$host_os runtime_loader"
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LIBRARY_PATH
+ shlibpath_overrides_runpath=no
+ sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
+ hardcode_into_libs=yes
+ ;;
+
+hpux9* | hpux10* | hpux11*)
+ # Give a soname corresponding to the major version so that dld.sl refuses to
+ # link against other versions.
+ version_type=sunos
+ need_lib_prefix=no
+ need_version=no
+ case $host_cpu in
+ ia64*)
+ shrext_cmds='.so'
+ hardcode_into_libs=yes
+ dynamic_linker="$host_os dld.so"
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ if test 32 = "$HPUX_IA64_MODE"; then
+ sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+ sys_lib_dlsearch_path_spec=/usr/lib/hpux32
+ else
+ sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+ sys_lib_dlsearch_path_spec=/usr/lib/hpux64
+ fi
+ ;;
+ hppa*64*)
+ shrext_cmds='.sl'
+ hardcode_into_libs=yes
+ dynamic_linker="$host_os dld.sl"
+ shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+ shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+ sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+ ;;
+ *)
+ shrext_cmds='.sl'
+ dynamic_linker="$host_os dld.sl"
+ shlibpath_var=SHLIB_PATH
+ shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ ;;
+ esac
+ # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+ postinstall_cmds='chmod 555 $lib'
+ # or fails outright, so override atomically:
+ install_override_mode=555
+ ;;
+
+interix[3-9]*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=no
+ hardcode_into_libs=yes
+ ;;
+
+irix5* | irix6* | nonstopux*)
+ case $host_os in
+ nonstopux*) version_type=nonstopux ;;
+ *)
+ if test yes = "$lt_cv_prog_gnu_ld"; then
+ version_type=linux # correct to gnu/linux during the next big refactor
+ else
+ version_type=irix
+ fi ;;
+ esac
+ need_lib_prefix=no
+ need_version=no
+ soname_spec='$libname$release$shared_ext$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext'
+ case $host_os in
+ irix5* | nonstopux*)
+ libsuff= shlibsuff=
+ ;;
+ *)
+ case $LD in # libtool.m4 will add one of these switches to LD
+ *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+ libsuff= shlibsuff= libmagic=32-bit;;
+ *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+ libsuff=32 shlibsuff=N32 libmagic=N32;;
+ *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+ libsuff=64 shlibsuff=64 libmagic=64-bit;;
+ *) libsuff= shlibsuff= libmagic=never-match;;
+ esac
+ ;;
+ esac
+ shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+ shlibpath_overrides_runpath=no
+ sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff"
+ sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff"
+ hardcode_into_libs=yes
+ ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+ dynamic_linker=no
+ ;;
+
+linux*android*)
+ version_type=none # Android doesn't support versioned libraries.
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext'
+ soname_spec='$libname$release$shared_ext'
+ finish_cmds=
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+
+ # This implies no fast_install, which is unacceptable.
+ # Some rework will be needed to allow for fast_install
+ # before this can be enabled.
+ hardcode_into_libs=yes
+
+ dynamic_linker='Android linker'
+ # Don't embed -rpath directories since the linker doesn't support them.
+ hardcode_libdir_flag_spec_CXX='-L$libdir'
+ ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=no
+
+ # Some binutils ld are patched to set DT_RUNPATH
+ if ${lt_cv_shlibpath_overrides_runpath+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ lt_cv_shlibpath_overrides_runpath=no
+ save_LDFLAGS=$LDFLAGS
+ save_libdir=$libdir
+ eval "libdir=/foo; wl=\"$lt_prog_compiler_wl_CXX\"; \
+ LDFLAGS=\"\$LDFLAGS $hardcode_libdir_flag_spec_CXX\""
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_cxx_try_link "$LINENO"; then :
+ if ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null; then :
+ lt_cv_shlibpath_overrides_runpath=yes
+fi
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ LDFLAGS=$save_LDFLAGS
+ libdir=$save_libdir
+
+fi
+
+ shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+ # This implies no fast_install, which is unacceptable.
+ # Some rework will be needed to allow for fast_install
+ # before this can be enabled.
+ hardcode_into_libs=yes
+
+ # Add ABI-specific directories to the system library path.
+ sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib"
+
+ # Ideally, we could use ldconfig to report *all* directores which are
+ # searched for libraries, however this is still not possible. Aside from not
+ # being certain /sbin/ldconfig is available, command
+ # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64,
+ # even though it is searched at run-time. Try to do the best guess by
+ # appending ld.so.conf contents (and includes) to the search path.
+ if test -f /etc/ld.so.conf; then
+ lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \$2)); skip = 1; } { if (!skip) print \$0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+ sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra"
+ fi
+
+ # We used to test for /lib/ld.so.1 and disable shared libraries on
+ # powerpc, because MkLinux only supported shared libraries with the
+ # GNU dynamic linker. Since this was broken with cross compilers,
+ # most powerpc-linux boxes support dynamic linking these days and
+ # people can always --disable-shared, the test was removed, and we
+ # assume the GNU/Linux dynamic linker is in use.
+ dynamic_linker='GNU/Linux ld.so'
+ ;;
+
+netbsd*)
+ version_type=sunos
+ need_lib_prefix=no
+ need_version=no
+ if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+ finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+ dynamic_linker='NetBSD (a.out) ld.so'
+ else
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ dynamic_linker='NetBSD ld.elf_so'
+ fi
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ hardcode_into_libs=yes
+ ;;
+
+newsos6)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ ;;
+
+*nto* | *qnx*)
+ version_type=qnx
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=no
+ hardcode_into_libs=yes
+ dynamic_linker='ldqnx.so'
+ ;;
+
+openbsd* | bitrig*)
+ version_type=sunos
+ sys_lib_dlsearch_path_spec=/usr/lib
+ need_lib_prefix=no
+ if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+ need_version=no
+ else
+ need_version=yes
+ fi
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+ finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ ;;
+
+os2*)
+ libname_spec='$name'
+ version_type=windows
+ shrext_cmds=.dll
+ need_version=no
+ need_lib_prefix=no
+ # OS/2 can only load a DLL with a base name of 8 characters or less.
+ soname_spec='`test -n "$os2dllname" && libname="$os2dllname";
+ v=$($ECHO $release$versuffix | tr -d .-);
+ n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _);
+ $ECHO $n$v`$shared_ext'
+ library_names_spec='${libname}_dll.$libext'
+ dynamic_linker='OS/2 ld.exe'
+ shlibpath_var=BEGINLIBPATH
+ sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+ sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+ postinstall_cmds='base_file=`basename \$file`~
+ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~
+ dldir=$destdir/`dirname \$dlpath`~
+ test -d \$dldir || mkdir -p \$dldir~
+ $install_prog $dir/$dlname \$dldir/$dlname~
+ chmod a+x \$dldir/$dlname~
+ if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+ eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+ fi'
+ postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~
+ dlpath=$dir/\$dldll~
+ $RM \$dlpath'
+ ;;
+
+osf3* | osf4* | osf5*)
+ version_type=osf
+ need_lib_prefix=no
+ need_version=no
+ soname_spec='$libname$release$shared_ext$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ shlibpath_var=LD_LIBRARY_PATH
+ sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+ sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+ ;;
+
+rdos*)
+ dynamic_linker=no
+ ;;
+
+solaris*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ hardcode_into_libs=yes
+ # ldd complains unless libraries are executable
+ postinstall_cmds='chmod +x $lib'
+ ;;
+
+sunos4*)
+ version_type=sunos
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+ finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ if test yes = "$with_gnu_ld"; then
+ need_lib_prefix=no
+ fi
+ need_version=yes
+ ;;
+
+sysv4 | sysv4.3*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ case $host_vendor in
+ sni)
+ shlibpath_overrides_runpath=no
+ need_lib_prefix=no
+ runpath_var=LD_RUN_PATH
+ ;;
+ siemens)
+ need_lib_prefix=no
+ ;;
+ motorola)
+ need_lib_prefix=no
+ need_version=no
+ shlibpath_overrides_runpath=no
+ sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+ ;;
+ esac
+ ;;
+
+sysv4*MP*)
+ if test -d /usr/nec; then
+ version_type=linux # correct to gnu/linux during the next big refactor
+ library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext'
+ soname_spec='$libname$shared_ext.$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ fi
+ ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+ version_type=sco
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ hardcode_into_libs=yes
+ if test yes = "$with_gnu_ld"; then
+ sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+ else
+ sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+ case $host_os in
+ sco3.2v5*)
+ sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+ ;;
+ esac
+ fi
+ sys_lib_dlsearch_path_spec='/usr/lib'
+ ;;
+
+tpf*)
+ # TPF is a cross-target only. Preferred cross-host = GNU/Linux.
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=no
+ hardcode_into_libs=yes
+ ;;
+
+uts4*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ ;;
+
+*)
+ dynamic_linker=no
+ ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $dynamic_linker" >&5
+$as_echo "$dynamic_linker" >&6; }
+test no = "$dynamic_linker" && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test yes = "$GCC"; then
+ variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then
+ sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec
+fi
+
+if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then
+ sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec
+fi
+
+# remember unaugmented sys_lib_dlsearch_path content for libtool script decls...
+configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec
+
+# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code
+func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH"
+
+# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool
+configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking how to hardcode library paths into programs" >&5
+$as_echo_n "checking how to hardcode library paths into programs... " >&6; }
+hardcode_action_CXX=
+if test -n "$hardcode_libdir_flag_spec_CXX" ||
+ test -n "$runpath_var_CXX" ||
+ test yes = "$hardcode_automatic_CXX"; then
+
+ # We can hardcode non-existent directories.
+ if test no != "$hardcode_direct_CXX" &&
+ # If the only mechanism to avoid hardcoding is shlibpath_var, we
+ # have to relink, otherwise we might link with an installed library
+ # when we should be linking with a yet-to-be-installed one
+ ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, CXX)" &&
+ test no != "$hardcode_minus_L_CXX"; then
+ # Linking always hardcodes the temporary library directory.
+ hardcode_action_CXX=relink
+ else
+ # We can link without hardcoding, and we can hardcode nonexisting dirs.
+ hardcode_action_CXX=immediate
+ fi
+else
+ # We cannot hardcode anything, or else we can only hardcode existing
+ # directories.
+ hardcode_action_CXX=unsupported
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $hardcode_action_CXX" >&5
+$as_echo "$hardcode_action_CXX" >&6; }
+
+if test relink = "$hardcode_action_CXX" ||
+ test yes = "$inherit_rpath_CXX"; then
+ # Fast installation is not supported
+ enable_fast_install=no
+elif test yes = "$shlibpath_overrides_runpath" ||
+ test no = "$enable_shared"; then
+ # Fast installation is not necessary
+ enable_fast_install=needless
+fi
+
+
+
+
+
+
+
+ fi # test -n "$compiler"
+
+ CC=$lt_save_CC
+ CFLAGS=$lt_save_CFLAGS
+ LDCXX=$LD
+ LD=$lt_save_LD
+ GCC=$lt_save_GCC
+ with_gnu_ld=$lt_save_with_gnu_ld
+ lt_cv_path_LDCXX=$lt_cv_path_LD
+ lt_cv_path_LD=$lt_save_path_LD
+ lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
+ lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
+fi # test yes != "$_lt_caught_CXX_error"
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the C++ compiler really really works" >&5
+$as_echo_n "checking if the C++ compiler really really works... " >&6; }
+if $CXX --version >&5 2>&1; then :
+ have_cxx=yes
+else
+ have_cxx=no
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $have_cxx" >&5
+$as_echo "$have_cxx" >&6; }
+ if test "$have_cxx" = "yes"; then
+ HAVE_CXX_TRUE=
+ HAVE_CXX_FALSE='#'
+else
+ HAVE_CXX_TRUE='#'
+ HAVE_CXX_FALSE=
+fi
+
+
+# Check whether --enable-gcc-warnings was given.
+if test "${enable_gcc_warnings+set}" = set; then :
+ enableval=$enable_gcc_warnings; case $enableval in
+ yes|no) ;;
+ *) as_fn_error $? "bad value $enableval for gcc-warnings option" "$LINENO" 5 ;;
+ esac
+ gcc_warnings=$enableval
+else
+ gcc_warnings=no
+
+fi
+
+if test "x$gcc_warnings" = "xyes"; then
+ WARNINGS_CFLAGS="-Wall -Werror"
+
+fi
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if the compiler supports -std=c90 for ANSI C test" >&5
+$as_echo_n "checking if the compiler supports -std=c90 for ANSI C test... " >&6; }
+old_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -std=c90"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+int
+main ()
+{
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+ supports_std_c90=yes
+else
+ supports_std_c90=no
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+CFLAGS="$old_CFLAGS"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $supports_std_c90" >&5
+$as_echo "$supports_std_c90" >&6; }
+ if test "x$supports_std_c90" = "xyes"; then
+ CAN_TEST_ANSI_C_TRUE=
+ CAN_TEST_ANSI_C_FALSE='#'
+else
+ CAN_TEST_ANSI_C_TRUE='#'
+ CAN_TEST_ANSI_C_FALSE=
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether OS-dependent include paths are required" >&5
+$as_echo_n "checking whether OS-dependent include paths are required... " >&6; }
+case $host_os in #(
+ haiku*) :
+ CFLAGS="$CFLAGS -I`findpaths -p /system B_FIND_PATH_HEADERS_DIRECTORY`/bsd"; { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; } ;; #(
+ *) :
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ ;;
+esac
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for temporary directory for large files" >&5
+$as_echo_n "checking for temporary directory for large files... " >&6; }
+case $host_os in #(
+ haiku*) :
+ LARGE_TMPDIR=/tmp ;; #(
+ *) :
+ LARGE_TMPDIR=/var/tmp
+ ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $LARGE_TMPDIR" >&5
+$as_echo "$LARGE_TMPDIR" >&6; }
+
+cat >>confdefs.h <<_ACEOF
+#define LARGE_TMPDIR "$LARGE_TMPDIR"
+_ACEOF
+
+
+ac_fn_c_check_decl "$LINENO" "program_invocation_short_name" "ac_cv_have_decl_program_invocation_short_name" "#include <errno.h>
+"
+if test "x$ac_cv_have_decl_program_invocation_short_name" = xyes; then :
+ ac_have_decl=1
+else
+ ac_have_decl=0
+fi
+
+cat >>confdefs.h <<_ACEOF
+#define HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME $ac_have_decl
+_ACEOF
+
+
+
+
+
+
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+ax_pthread_ok=no
+
+# We used to check for pthread.h first, but this fails if pthread.h
+# requires special compiler flags (e.g. on Tru64 or Sequent).
+# It gets checked for in the link test anyway.
+
+# First of all, check if the user has set any of the PTHREAD_LIBS,
+# etcetera environment variables, and if threads linking works using
+# them:
+if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then
+ ax_pthread_save_CC="$CC"
+ ax_pthread_save_CFLAGS="$CFLAGS"
+ ax_pthread_save_LIBS="$LIBS"
+ if test "x$PTHREAD_CC" != "x"; then :
+ CC="$PTHREAD_CC"
+fi
+ CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+ LIBS="$PTHREAD_LIBS $LIBS"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS" >&5
+$as_echo_n "checking for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS... " >&6; }
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char pthread_join ();
+int
+main ()
+{
+return pthread_join ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ax_pthread_ok=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5
+$as_echo "$ax_pthread_ok" >&6; }
+ if test "x$ax_pthread_ok" = "xno"; then
+ PTHREAD_LIBS=""
+ PTHREAD_CFLAGS=""
+ fi
+ CC="$ax_pthread_save_CC"
+ CFLAGS="$ax_pthread_save_CFLAGS"
+ LIBS="$ax_pthread_save_LIBS"
+fi
+
+# We must check for the threads library under a number of different
+# names; the ordering is very important because some systems
+# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
+# libraries is broken (non-POSIX).
+
+# Create a list of thread flags to try. Items starting with a "-" are
+# C compiler flags, and other items are library names, except for "none"
+# which indicates that we try without any flags at all, and "pthread-config"
+# which is a program returning the flags for the Pth emulation library.
+
+ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
+
+# The ordering *is* (sometimes) important. Some notes on the
+# individual items follow:
+
+# pthreads: AIX (must check this before -lpthread)
+# none: in case threads are in libc; should be tried before -Kthread and
+# other compiler flags to prevent continual compiler warnings
+# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
+# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64
+# (Note: HP C rejects this with "bad form for `-t' option")
+# -pthreads: Solaris/gcc (Note: HP C also rejects)
+# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
+# doesn't hurt to check since this sometimes defines pthreads and
+# -D_REENTRANT too), HP C (must be checked before -lpthread, which
+# is present but should not be used directly; and before -mthreads,
+# because the compiler interprets this as "-mt" + "-hreads")
+# -mthreads: Mingw32/gcc, Lynx/gcc
+# pthread: Linux, etcetera
+# --thread-safe: KAI C++
+# pthread-config: use pthread-config program (for GNU Pth library)
+
+case $host_os in
+
+ freebsd*)
+
+ # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
+ # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
+
+ ax_pthread_flags="-kthread lthread $ax_pthread_flags"
+ ;;
+
+ hpux*)
+
+ # From the cc(1) man page: "[-mt] Sets various -D flags to enable
+ # multi-threading and also sets -lpthread."
+
+ ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags"
+ ;;
+
+ openedition*)
+
+ # IBM z/OS requires a feature-test macro to be defined in order to
+ # enable POSIX threads at all, so give the user a hint if this is
+ # not set. (We don't define these ourselves, as they can affect
+ # other portions of the system API in unpredictable ways.)
+
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+# if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS)
+ AX_PTHREAD_ZOS_MISSING
+# endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "AX_PTHREAD_ZOS_MISSING" >/dev/null 2>&1; then :
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&5
+$as_echo "$as_me: WARNING: IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support." >&2;}
+fi
+rm -f conftest*
+
+ ;;
+
+ solaris*)
+
+ # On Solaris (at least, for some versions), libc contains stubbed
+ # (non-functional) versions of the pthreads routines, so link-based
+ # tests will erroneously succeed. (N.B.: The stubs are missing
+ # pthread_cleanup_push, or rather a function called by this macro,
+ # so we could check for that, but who knows whether they'll stub
+ # that too in a future libc.) So we'll check first for the
+ # standard Solaris way of linking pthreads (-mt -lpthread).
+
+ ax_pthread_flags="-mt,pthread pthread $ax_pthread_flags"
+ ;;
+esac
+
+# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC)
+
+if test "x$GCC" = "xyes"; then :
+ ax_pthread_flags="-pthread -pthreads $ax_pthread_flags"
+fi
+
+# The presence of a feature test macro requesting re-entrant function
+# definitions is, on some systems, a strong hint that pthreads support is
+# correctly enabled
+
+case $host_os in
+ darwin* | hpux* | linux* | osf* | solaris*)
+ ax_pthread_check_macro="_REENTRANT"
+ ;;
+
+ aix*)
+ ax_pthread_check_macro="_THREAD_SAFE"
+ ;;
+
+ *)
+ ax_pthread_check_macro="--"
+ ;;
+esac
+if test "x$ax_pthread_check_macro" = "x--"; then :
+ ax_pthread_check_cond=0
+else
+ ax_pthread_check_cond="!defined($ax_pthread_check_macro)"
+fi
+
+# Are we compiling with Clang?
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether $CC is Clang" >&5
+$as_echo_n "checking whether $CC is Clang... " >&6; }
+if ${ax_cv_PTHREAD_CLANG+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ax_cv_PTHREAD_CLANG=no
+ # Note that Autoconf sets GCC=yes for Clang as well as GCC
+ if test "x$GCC" = "xyes"; then
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+/* Note: Clang 2.7 lacks __clang_[a-z]+__ */
+# if defined(__clang__) && defined(__llvm__)
+ AX_PTHREAD_CC_IS_CLANG
+# endif
+
+_ACEOF
+if (eval "$ac_cpp conftest.$ac_ext") 2>&5 |
+ $EGREP "AX_PTHREAD_CC_IS_CLANG" >/dev/null 2>&1; then :
+ ax_cv_PTHREAD_CLANG=yes
+fi
+rm -f conftest*
+
+ fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_CLANG" >&5
+$as_echo "$ax_cv_PTHREAD_CLANG" >&6; }
+ax_pthread_clang="$ax_cv_PTHREAD_CLANG"
+
+ax_pthread_clang_warning=no
+
+# Clang needs special handling, because older versions handle the -pthread
+# option in a rather... idiosyncratic way
+
+if test "x$ax_pthread_clang" = "xyes"; then
+
+ # Clang takes -pthread; it has never supported any other flag
+
+ # (Note 1: This will need to be revisited if a system that Clang
+ # supports has POSIX threads in a separate library. This tends not
+ # to be the way of modern systems, but it's conceivable.)
+
+ # (Note 2: On some systems, notably Darwin, -pthread is not needed
+ # to get POSIX threads support; the API is always present and
+ # active. We could reasonably leave PTHREAD_CFLAGS empty. But
+ # -pthread does define _REENTRANT, and while the Darwin headers
+ # ignore this macro, third-party headers might not.)
+
+ PTHREAD_CFLAGS="-pthread"
+ PTHREAD_LIBS=
+
+ ax_pthread_ok=yes
+
+ # However, older versions of Clang make a point of warning the user
+ # that, in an invocation where only linking and no compilation is
+ # taking place, the -pthread option has no effect ("argument unused
+ # during compilation"). They expect -pthread to be passed in only
+ # when source code is being compiled.
+ #
+ # Problem is, this is at odds with the way Automake and most other
+ # C build frameworks function, which is that the same flags used in
+ # compilation (CFLAGS) are also used in linking. Many systems
+ # supported by AX_PTHREAD require exactly this for POSIX threads
+ # support, and in fact it is often not straightforward to specify a
+ # flag that is used only in the compilation phase and not in
+ # linking. Such a scenario is extremely rare in practice.
+ #
+ # Even though use of the -pthread flag in linking would only print
+ # a warning, this can be a nuisance for well-run software projects
+ # that build with -Werror. So if the active version of Clang has
+ # this misfeature, we search for an option to squash it.
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread" >&5
+$as_echo_n "checking whether Clang needs flag to prevent \"argument unused\" warning when linking with -pthread... " >&6; }
+if ${ax_cv_PTHREAD_CLANG_NO_WARN_FLAG+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown
+ # Create an alternate version of $ac_link that compiles and
+ # links in two steps (.c -> .o, .o -> exe) instead of one
+ # (.c -> exe), because the warning occurs only in the second
+ # step
+ ax_pthread_save_ac_link="$ac_link"
+ ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g'
+ ax_pthread_link_step=`$as_echo "$ac_link" | sed "$ax_pthread_sed"`
+ ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)"
+ ax_pthread_save_CFLAGS="$CFLAGS"
+ for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do
+ if test "x$ax_pthread_try" = "xunknown"; then :
+ break
+fi
+ CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS"
+ ac_link="$ax_pthread_save_ac_link"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+int main(void){return 0;}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_link="$ax_pthread_2step_ac_link"
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+int main(void){return 0;}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ break
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ done
+ ac_link="$ax_pthread_save_ac_link"
+ CFLAGS="$ax_pthread_save_CFLAGS"
+ if test "x$ax_pthread_try" = "x"; then :
+ ax_pthread_try=no
+fi
+ ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try"
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" >&5
+$as_echo "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" >&6; }
+
+ case "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" in
+ no | unknown) ;;
+ *) PTHREAD_CFLAGS="$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG $PTHREAD_CFLAGS" ;;
+ esac
+
+fi # $ax_pthread_clang = yes
+
+if test "x$ax_pthread_ok" = "xno"; then
+for ax_pthread_try_flag in $ax_pthread_flags; do
+
+ case $ax_pthread_try_flag in
+ none)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work without any flags" >&5
+$as_echo_n "checking whether pthreads work without any flags... " >&6; }
+ ;;
+
+ -mt,pthread)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with -mt -lpthread" >&5
+$as_echo_n "checking whether pthreads work with -mt -lpthread... " >&6; }
+ PTHREAD_CFLAGS="-mt"
+ PTHREAD_LIBS="-lpthread"
+ ;;
+
+ -*)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether pthreads work with $ax_pthread_try_flag" >&5
+$as_echo_n "checking whether pthreads work with $ax_pthread_try_flag... " >&6; }
+ PTHREAD_CFLAGS="$ax_pthread_try_flag"
+ ;;
+
+ pthread-config)
+ # Extract the first word of "pthread-config", so it can be a program name with args.
+set dummy pthread-config; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ax_pthread_config+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ax_pthread_config"; then
+ ac_cv_prog_ax_pthread_config="$ax_pthread_config" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ax_pthread_config="yes"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+ test -z "$ac_cv_prog_ax_pthread_config" && ac_cv_prog_ax_pthread_config="no"
+fi
+fi
+ax_pthread_config=$ac_cv_prog_ax_pthread_config
+if test -n "$ax_pthread_config"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_config" >&5
+$as_echo "$ax_pthread_config" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ if test "x$ax_pthread_config" = "xno"; then :
+ continue
+fi
+ PTHREAD_CFLAGS="`pthread-config --cflags`"
+ PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
+ ;;
+
+ *)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for the pthreads library -l$ax_pthread_try_flag" >&5
+$as_echo_n "checking for the pthreads library -l$ax_pthread_try_flag... " >&6; }
+ PTHREAD_LIBS="-l$ax_pthread_try_flag"
+ ;;
+ esac
+
+ ax_pthread_save_CFLAGS="$CFLAGS"
+ ax_pthread_save_LIBS="$LIBS"
+ CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+ LIBS="$PTHREAD_LIBS $LIBS"
+
+ # Check for various functions. We must include pthread.h,
+ # since some functions may be macros. (On the Sequent, we
+ # need a special flag -Kthread to make this header compile.)
+ # We check for pthread_join because it is in -lpthread on IRIX
+ # while pthread_create is in libc. We check for pthread_attr_init
+ # due to DEC craziness with -lpthreads. We check for
+ # pthread_cleanup_push because it is one of the few pthread
+ # functions on Solaris that doesn't have a non-functional libc stub.
+ # We try pthread_create on general principles.
+
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <pthread.h>
+# if $ax_pthread_check_cond
+# error "$ax_pthread_check_macro must be defined"
+# endif
+ static void routine(void *a) { a = 0; }
+ static void *start_routine(void *a) { return a; }
+int
+main ()
+{
+pthread_t th; pthread_attr_t attr;
+ pthread_create(&th, 0, start_routine, 0);
+ pthread_join(th, 0);
+ pthread_attr_init(&attr);
+ pthread_cleanup_push(routine, 0);
+ pthread_cleanup_pop(0) /* ; */
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ax_pthread_ok=yes
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+
+ CFLAGS="$ax_pthread_save_CFLAGS"
+ LIBS="$ax_pthread_save_LIBS"
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_pthread_ok" >&5
+$as_echo "$ax_pthread_ok" >&6; }
+ if test "x$ax_pthread_ok" = "xyes"; then :
+ break
+fi
+
+ PTHREAD_LIBS=""
+ PTHREAD_CFLAGS=""
+done
+fi
+
+# Various other checks:
+if test "x$ax_pthread_ok" = "xyes"; then
+ ax_pthread_save_CFLAGS="$CFLAGS"
+ ax_pthread_save_LIBS="$LIBS"
+ CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+ LIBS="$PTHREAD_LIBS $LIBS"
+
+ # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for joinable pthread attribute" >&5
+$as_echo_n "checking for joinable pthread attribute... " >&6; }
+if ${ax_cv_PTHREAD_JOINABLE_ATTR+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ax_cv_PTHREAD_JOINABLE_ATTR=unknown
+ for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <pthread.h>
+int
+main ()
+{
+int attr = $ax_pthread_attr; return attr /* ; */
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+ done
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_JOINABLE_ATTR" >&5
+$as_echo "$ax_cv_PTHREAD_JOINABLE_ATTR" >&6; }
+ if test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \
+ test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \
+ test "x$ax_pthread_joinable_attr_defined" != "xyes"; then :
+
+cat >>confdefs.h <<_ACEOF
+#define PTHREAD_CREATE_JOINABLE $ax_cv_PTHREAD_JOINABLE_ATTR
+_ACEOF
+
+ ax_pthread_joinable_attr_defined=yes
+
+fi
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking whether more special flags are required for pthreads" >&5
+$as_echo_n "checking whether more special flags are required for pthreads... " >&6; }
+if ${ax_cv_PTHREAD_SPECIAL_FLAGS+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ax_cv_PTHREAD_SPECIAL_FLAGS=no
+ case $host_os in
+ solaris*)
+ ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS"
+ ;;
+ esac
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_SPECIAL_FLAGS" >&5
+$as_echo "$ax_cv_PTHREAD_SPECIAL_FLAGS" >&6; }
+ if test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \
+ test "x$ax_pthread_special_flags_added" != "xyes"; then :
+ PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS"
+ ax_pthread_special_flags_added=yes
+fi
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PTHREAD_PRIO_INHERIT" >&5
+$as_echo_n "checking for PTHREAD_PRIO_INHERIT... " >&6; }
+if ${ax_cv_PTHREAD_PRIO_INHERIT+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+#include <pthread.h>
+int
+main ()
+{
+int i = PTHREAD_PRIO_INHERIT;
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ax_cv_PTHREAD_PRIO_INHERIT=yes
+else
+ ax_cv_PTHREAD_PRIO_INHERIT=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ax_cv_PTHREAD_PRIO_INHERIT" >&5
+$as_echo "$ax_cv_PTHREAD_PRIO_INHERIT" >&6; }
+ if test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \
+ test "x$ax_pthread_prio_inherit_defined" != "xyes"; then :
+
+$as_echo "#define HAVE_PTHREAD_PRIO_INHERIT 1" >>confdefs.h
+
+ ax_pthread_prio_inherit_defined=yes
+
+fi
+
+ CFLAGS="$ax_pthread_save_CFLAGS"
+ LIBS="$ax_pthread_save_LIBS"
+
+ # More AIX lossage: compile with *_r variant
+ if test "x$GCC" != "xyes"; then
+ case $host_os in
+ aix*)
+ case "x/$CC" in #(
+ x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6) :
+ #handle absolute path differently from PATH based program lookup
+ case "x$CC" in #(
+ x/*) :
+ if as_fn_executable_p ${CC}_r; then :
+ PTHREAD_CC="${CC}_r"
+fi ;; #(
+ *) :
+ for ac_prog in ${CC}_r
+do
+ # Extract the first word of "$ac_prog", so it can be a program name with args.
+set dummy $ac_prog; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_PTHREAD_CC+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$PTHREAD_CC"; then
+ ac_cv_prog_PTHREAD_CC="$PTHREAD_CC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_PTHREAD_CC="$ac_prog"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+PTHREAD_CC=$ac_cv_prog_PTHREAD_CC
+if test -n "$PTHREAD_CC"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PTHREAD_CC" >&5
+$as_echo "$PTHREAD_CC" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ test -n "$PTHREAD_CC" && break
+done
+test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
+ ;;
+esac ;; #(
+ *) :
+ ;;
+esac
+ ;;
+ esac
+ fi
+fi
+
+test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
+
+
+
+
+
+# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
+if test "x$ax_pthread_ok" = "xyes"; then
+
+$as_echo "#define HAVE_PTHREAD 1" >>confdefs.h
+
+ :
+else
+ ax_pthread_ok=no
+
+fi
+ac_ext=c
+ac_cpp='$CPP $CPPFLAGS'
+ac_compile='$CC -c $CFLAGS $CPPFLAGS conftest.$ac_ext >&5'
+ac_link='$CC -o conftest$ac_exeext $CFLAGS $CPPFLAGS $LDFLAGS conftest.$ac_ext $LIBS >&5'
+ac_compiler_gnu=$ac_cv_c_compiler_gnu
+
+
+
+acx_nbdkit_save_CFLAGS="${CFLAGS}"
+CFLAGS="${CFLAGS} -Werror"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if __attribute__((cleanup(...))) works with this compiler" >&5
+$as_echo_n "checking if __attribute__((cleanup(...))) works with this compiler... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+
+void
+freep (void *ptr)
+{
+ exit (EXIT_SUCCESS);
+}
+
+void
+test (void)
+{
+ __attribute__((cleanup(freep))) char *ptr = malloc (100);
+}
+
+int
+main (int argc, char *argv[])
+{
+ test ();
+ exit (EXIT_FAILURE);
+}
+
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+else
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ as_fn_error $? "'__attribute__((cleanup(...)))' does not work.
+
+You may not be using a sufficiently recent version of GCC or CLANG, or
+you may be using a C compiler which does not support this attribute,
+or the configure test may be wrong.
+
+This code requires the attribute to work for proper locking between threads." "$LINENO" 5
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+CFLAGS="${acx_nbdkit_save_CFLAGS}"
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if __auto_type is available in this compiler" >&5
+$as_echo_n "checking if __auto_type is available in this compiler... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+
+static int
+test (int a)
+{
+ __auto_type at = a;
+ return at;
+}
+
+
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+$as_echo "#define HAVE_AUTO_TYPE 1" >>confdefs.h
+
+
+else
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+for ac_header in \
+ alloca.h \
+ byteswap.h \
+ endian.h \
+ sys/endian.h \
+ sys/prctl.h \
+ sys/procctl.h
+do :
+ as_ac_Header=`$as_echo "ac_cv_header_$ac_header" | $as_tr_sh`
+ac_fn_c_check_header_mongrel "$LINENO" "$ac_header" "$as_ac_Header" "$ac_includes_default"
+if eval test \"x\$"$as_ac_Header"\" = x"yes"; then :
+ cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_header" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+
+done
+
+
+for ac_func in \
+ fdatasync \
+ get_current_dir_name \
+ mkostemp
+do :
+ as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+ cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking whether the printf family supports %m" >&5
+$as_echo_n "checking whether the printf family supports %m... " >&6; }
+if ${nbdkit_cv_func_printf_percent_m+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test "$cross_compiling" = yes; then :
+
+ case "$host_os" in
+ *-gnu* | gnu*) nbdkit_cv_func_printf_percent_m=yes;;
+ *) nbdkit_cv_func_printf_percent_m="guessing no";;
+ esac
+
+else
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+
+int
+main ()
+{
+
+ char buf[200] = "";
+ errno = EINVAL;
+ snprintf(buf, sizeof buf, "%m");
+ return !!strcmp (buf, strerror (EINVAL));
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_run "$LINENO"; then :
+ nbdkit_cv_func_printf_percent_m=yes
+else
+ nbdkit_cv_func_printf_percent_m=no
+fi
+rm -f core *.core core.conftest.* gmon.out bb.out conftest$ac_exeext \
+ conftest.$ac_objext conftest.beam conftest.$ac_ext
+fi
+
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $nbdkit_cv_func_printf_percent_m" >&5
+$as_echo "$nbdkit_cv_func_printf_percent_m" >&6; }
+if test "x$nbdkit_cv_func_printf_percent_m" = xyes; then :
+
+$as_echo "#define HAVE_VFPRINTF_PERCENT_M 1" >>confdefs.h
+
+fi
+
+old_LIBS="$LIBS"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing dlsym" >&5
+$as_echo_n "checking for library containing dlsym... " >&6; }
+if ${ac_cv_search_dlsym+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char dlsym ();
+int
+main ()
+{
+return dlsym ();
+ ;
+ return 0;
+}
+_ACEOF
+for ac_lib in '' dl dld; do
+ if test -z "$ac_lib"; then
+ ac_res="none required"
+ else
+ ac_res=-l$ac_lib
+ LIBS="-l$ac_lib $ac_func_search_save_LIBS"
+ fi
+ if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_search_dlsym=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext
+ if ${ac_cv_search_dlsym+:} false; then :
+ break
+fi
+done
+if ${ac_cv_search_dlsym+:} false; then :
+
+else
+ ac_cv_search_dlsym=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_dlsym" >&5
+$as_echo "$ac_cv_search_dlsym" >&6; }
+ac_res=$ac_cv_search_dlsym
+if test "$ac_res" != no; then :
+ test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+ if test "x$ac_cv_search_dlsym" != "xnone required"; then :
+ DL_LIBS="$ac_cv_search_dlsym"
+else
+ DL_LIBS=
+fi
+
+
+else
+ as_fn_error $? "unable to find the dlsym() function" "$LINENO" 5
+
+fi
+
+LIBS="$old_LIBS"
+
+
+# Check whether --with-iconv was given.
+if test "${with_iconv+set}" = set; then :
+ withval=$with_iconv;
+else
+ with_iconv=check
+fi
+
+if test "x$with_iconv" != "xno"; then :
+
+ ac_fn_c_check_header_mongrel "$LINENO" "iconv.h" "ac_cv_header_iconv_h" "$ac_includes_default"
+if test "x$ac_cv_header_iconv_h" = xyes; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking if <iconv.h> can be used to link a program" >&5
+$as_echo_n "checking if <iconv.h> can be used to link a program... " >&6; }
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <iconv.h>
+int
+main (int argc, char *argv[])
+{
+ iconv_t ic = iconv_open ("", "");
+ iconv_close (ic);
+ exit (0);
+}
+
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+ iconv_working=yes
+
+else
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+
+fi
+
+
+
+fi
+ if test "x$iconv_working" = "xyes"; then
+ HAVE_ICONV_TRUE=
+ HAVE_ICONV_FALSE='#'
+else
+ HAVE_ICONV_TRUE='#'
+ HAVE_ICONV_FALSE=
+fi
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if we should use a linker script for the server" >&5
+$as_echo_n "checking if we should use a linker script for the server... " >&6; }
+case $host_os in #(
+ freebsd*) :
+ use_linker_script_for_server=no ;; #(
+ *) :
+ use_linker_script_for_server=yes
+ ;;
+esac
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $use_linker_script_for_server" >&5
+$as_echo "$use_linker_script_for_server" >&6; }
+ if test "x$use_linker_script_for_server" = "xyes"; then
+ USE_LINKER_SCRIPT_FOR_SERVER_TRUE=
+ USE_LINKER_SCRIPT_FOR_SERVER_FALSE='#'
+else
+ USE_LINKER_SCRIPT_FOR_SERVER_TRUE='#'
+ USE_LINKER_SCRIPT_FOR_SERVER_FALSE=
+fi
+
+
+acx_nbdkit_save_LDFLAGS="${LDFLAGS}"
+LDFLAGS="${LDFLAGS} -rdynamic"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking if linker supports -rdynamic" >&5
+$as_echo_n "checking if linker supports -rdynamic... " >&6; }
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+
+#include <stdlib.h>
+int
+main (int argc, char *argv[])
+{
+ exit (EXIT_SUCCESS);
+}
+
+
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+ DL_LDFLAGS=-rdynamic
+
+else
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LDFLAGS="${acx_nbdkit_save_LDFLAGS}"
+
+
+old_LIBS="$LIBS"
+LIBS="$DL_LIBS $LIBS"
+for ac_func in dladdr
+do :
+ ac_fn_c_check_func "$LINENO" "dladdr" "ac_cv_func_dladdr"
+if test "x$ac_cv_func_dladdr" = xyes; then :
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_DLADDR 1
+_ACEOF
+
+fi
+done
+
+LIBS="$old_LIBS"
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for library containing getaddrinfo" >&5
+$as_echo_n "checking for library containing getaddrinfo... " >&6; }
+if ${ac_cv_search_getaddrinfo+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_func_search_save_LIBS=$LIBS
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char getaddrinfo ();
+int
+main ()
+{
+return getaddrinfo ();
+ ;
+ return 0;
+}
+_ACEOF
+for ac_lib in '' network socket; do
+ if test -z "$ac_lib"; then
+ ac_res="none required"
+ else
+ ac_res=-l$ac_lib
+ LIBS="-l$ac_lib $ac_func_search_save_LIBS"
+ fi
+ if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_search_getaddrinfo=$ac_res
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext
+ if ${ac_cv_search_getaddrinfo+:} false; then :
+ break
+fi
+done
+if ${ac_cv_search_getaddrinfo+:} false; then :
+
+else
+ ac_cv_search_getaddrinfo=no
+fi
+rm conftest.$ac_ext
+LIBS=$ac_func_search_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_search_getaddrinfo" >&5
+$as_echo "$ac_cv_search_getaddrinfo" >&6; }
+ac_res=$ac_cv_search_getaddrinfo
+if test "$ac_res" != no; then :
+ test "$ac_res" = "none required" || LIBS="$ac_res $LIBS"
+
+fi
+
+
+
+
+
+
+
+
+
+if test "x$ac_cv_env_PKG_CONFIG_set" != "xset"; then
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}pkg-config", so it can be a program name with args.
+set dummy ${ac_tool_prefix}pkg-config; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_PKG_CONFIG+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ case $PKG_CONFIG in
+ [\\/]* | ?:[\\/]*)
+ ac_cv_path_PKG_CONFIG="$PKG_CONFIG" # Let the user override the test with a path.
+ ;;
+ *)
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_path_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+ ;;
+esac
+fi
+PKG_CONFIG=$ac_cv_path_PKG_CONFIG
+if test -n "$PKG_CONFIG"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PKG_CONFIG" >&5
+$as_echo "$PKG_CONFIG" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_path_PKG_CONFIG"; then
+ ac_pt_PKG_CONFIG=$PKG_CONFIG
+ # Extract the first word of "pkg-config", so it can be a program name with args.
+set dummy pkg-config; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_path_ac_pt_PKG_CONFIG+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ case $ac_pt_PKG_CONFIG in
+ [\\/]* | ?:[\\/]*)
+ ac_cv_path_ac_pt_PKG_CONFIG="$ac_pt_PKG_CONFIG" # Let the user override the test with a path.
+ ;;
+ *)
+ as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_path_ac_pt_PKG_CONFIG="$as_dir/$ac_word$ac_exec_ext"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+ ;;
+esac
+fi
+ac_pt_PKG_CONFIG=$ac_cv_path_ac_pt_PKG_CONFIG
+if test -n "$ac_pt_PKG_CONFIG"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_pt_PKG_CONFIG" >&5
+$as_echo "$ac_pt_PKG_CONFIG" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_pt_PKG_CONFIG" = x; then
+ PKG_CONFIG=""
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ PKG_CONFIG=$ac_pt_PKG_CONFIG
+ fi
+else
+ PKG_CONFIG="$ac_cv_path_PKG_CONFIG"
+fi
+
+fi
+if test -n "$PKG_CONFIG"; then
+ _pkg_min_version=0.9.0
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking pkg-config is at least version $_pkg_min_version" >&5
+$as_echo_n "checking pkg-config is at least version $_pkg_min_version... " >&6; }
+ if $PKG_CONFIG --atleast-pkgconfig-version $_pkg_min_version; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+ else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ PKG_CONFIG=""
+ fi
+fi
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBSELINUX" >&5
+$as_echo_n "checking for LIBSELINUX... " >&6; }
+
+if test -n "$LIBSELINUX_CFLAGS"; then
+ pkg_cv_LIBSELINUX_CFLAGS="$LIBSELINUX_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libselinux\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "libselinux") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_LIBSELINUX_CFLAGS=`$PKG_CONFIG --cflags "libselinux" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$LIBSELINUX_LIBS"; then
+ pkg_cv_LIBSELINUX_LIBS="$LIBSELINUX_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libselinux\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "libselinux") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_LIBSELINUX_LIBS=`$PKG_CONFIG --libs "libselinux" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ LIBSELINUX_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libselinux" 2>&1`
+ else
+ LIBSELINUX_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libselinux" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$LIBSELINUX_PKG_ERRORS" >&5
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libselinux not found, SELinux socket labelling support will be disabled." >&5
+$as_echo "$as_me: WARNING: libselinux not found, SELinux socket labelling support will be disabled." >&2;}
+
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libselinux not found, SELinux socket labelling support will be disabled." >&5
+$as_echo "$as_me: WARNING: libselinux not found, SELinux socket labelling support will be disabled." >&2;}
+
+else
+ LIBSELINUX_CFLAGS=$pkg_cv_LIBSELINUX_CFLAGS
+ LIBSELINUX_LIBS=$pkg_cv_LIBSELINUX_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+$as_echo "#define HAVE_LIBSELINUX 1" >>confdefs.h
+
+
+fi
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for GNUTLS" >&5
+$as_echo_n "checking for GNUTLS... " >&6; }
+
+if test -n "$GNUTLS_CFLAGS"; then
+ pkg_cv_GNUTLS_CFLAGS="$GNUTLS_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"gnutls >= 3.3.0\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "gnutls >= 3.3.0") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_GNUTLS_CFLAGS=`$PKG_CONFIG --cflags "gnutls >= 3.3.0" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$GNUTLS_LIBS"; then
+ pkg_cv_GNUTLS_LIBS="$GNUTLS_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"gnutls >= 3.3.0\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "gnutls >= 3.3.0") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_GNUTLS_LIBS=`$PKG_CONFIG --libs "gnutls >= 3.3.0" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ GNUTLS_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "gnutls >= 3.3.0" 2>&1`
+ else
+ GNUTLS_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "gnutls >= 3.3.0" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$GNUTLS_PKG_ERRORS" >&5
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: gnutls not found or < 3.3.0, TLS support will be disabled." >&5
+$as_echo "$as_me: WARNING: gnutls not found or < 3.3.0, TLS support will be disabled." >&2;}
+
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: gnutls not found or < 3.3.0, TLS support will be disabled." >&5
+$as_echo "$as_me: WARNING: gnutls not found or < 3.3.0, TLS support will be disabled." >&2;}
+
+else
+ GNUTLS_CFLAGS=$pkg_cv_GNUTLS_CFLAGS
+ GNUTLS_LIBS=$pkg_cv_GNUTLS_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+$as_echo "#define HAVE_GNUTLS 1" >>confdefs.h
+
+
+fi
+
+if test "$GNUTLS_LIBS" != ""; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for default TLS session priority string" >&5
+$as_echo_n "checking for default TLS session priority string... " >&6; }
+
+# Check whether --with-tls-priority was given.
+if test "${with_tls_priority+set}" = set; then :
+ withval=$with_tls_priority; tls_priority=$withval
+else
+ tls_priority=NORMAL
+fi
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $tls_priority" >&5
+$as_echo "$tls_priority" >&6; }
+
+cat >>confdefs.h <<_ACEOF
+#define TLS_PRIORITY "$tls_priority"
+_ACEOF
+
+
+ # Check for APIs which may not be present.
+ old_LIBS="$LIBS"
+ LIBS="$GNUTLS_LIBS $LIBS"
+ for ac_func in \
+ gnutls_base64_decode2 \
+ gnutls_certificate_set_known_dh_params \
+ gnutls_session_set_verify_cert
+do :
+ as_ac_var=`$as_echo "ac_cv_func_$ac_func" | $as_tr_sh`
+ac_fn_c_check_func "$LINENO" "$ac_func" "$as_ac_var"
+if eval test \"x\$"$as_ac_var"\" = x"yes"; then :
+ cat >>confdefs.h <<_ACEOF
+#define `$as_echo "HAVE_$ac_func" | $as_tr_cpp` 1
+_ACEOF
+
+fi
+done
+
+ LIBS="$old_LIBS"
+
+fi
+
+# Extract the first word of "valgrind", so it can be a program name with args.
+set dummy valgrind; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_VALGRIND+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$VALGRIND"; then
+ ac_cv_prog_VALGRIND="$VALGRIND" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_VALGRIND="valgrind"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+ test -z "$ac_cv_prog_VALGRIND" && ac_cv_prog_VALGRIND="no"
+fi
+fi
+VALGRIND=$ac_cv_prog_VALGRIND
+if test -n "$VALGRIND"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $VALGRIND" >&5
+$as_echo "$VALGRIND" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+
+# Check whether --enable-valgrind was given.
+if test "${enable_valgrind+set}" = set; then :
+ enableval=$enable_valgrind; enable_valgrind=yes
+else
+ enable_valgrind=no
+fi
+
+if test "x$enable_valgrind" = "xyes"; then :
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for VALGRIND" >&5
+$as_echo_n "checking for VALGRIND... " >&6; }
+
+if test -n "$VALGRIND_CFLAGS"; then
+ pkg_cv_VALGRIND_CFLAGS="$VALGRIND_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"valgrind\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "valgrind") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_VALGRIND_CFLAGS=`$PKG_CONFIG --cflags "valgrind" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$VALGRIND_LIBS"; then
+ pkg_cv_VALGRIND_LIBS="$VALGRIND_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"valgrind\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "valgrind") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_VALGRIND_LIBS=`$PKG_CONFIG --libs "valgrind" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ VALGRIND_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "valgrind" 2>&1`
+ else
+ VALGRIND_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "valgrind" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$VALGRIND_PKG_ERRORS" >&5
+
+
+ as_fn_error $? "--enable-valgrind given, but Valgrind headers are not available" "$LINENO" 5
+
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+ as_fn_error $? "--enable-valgrind given, but Valgrind headers are not available" "$LINENO" 5
+
+else
+ VALGRIND_CFLAGS=$pkg_cv_VALGRIND_CFLAGS
+ VALGRIND_LIBS=$pkg_cv_VALGRIND_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+$as_echo "#define HAVE_VALGRIND 1" >>confdefs.h
+
+
+fi
+
+fi
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for BASH_COMPLETION" >&5
+$as_echo_n "checking for BASH_COMPLETION... " >&6; }
+
+if test -n "$BASH_COMPLETION_CFLAGS"; then
+ pkg_cv_BASH_COMPLETION_CFLAGS="$BASH_COMPLETION_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"bash-completion >= 2.0\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "bash-completion >= 2.0") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_BASH_COMPLETION_CFLAGS=`$PKG_CONFIG --cflags "bash-completion >= 2.0" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$BASH_COMPLETION_LIBS"; then
+ pkg_cv_BASH_COMPLETION_LIBS="$BASH_COMPLETION_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"bash-completion >= 2.0\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "bash-completion >= 2.0") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_BASH_COMPLETION_LIBS=`$PKG_CONFIG --libs "bash-completion >= 2.0" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ BASH_COMPLETION_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "bash-completion >= 2.0" 2>&1`
+ else
+ BASH_COMPLETION_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "bash-completion >= 2.0" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$BASH_COMPLETION_PKG_ERRORS" >&5
+
+
+ bash_completion=no
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: bash-completion not installed" >&5
+$as_echo "$as_me: WARNING: bash-completion not installed" >&2;}
+
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+ bash_completion=no
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: bash-completion not installed" >&5
+$as_echo "$as_me: WARNING: bash-completion not installed" >&2;}
+
+else
+ BASH_COMPLETION_CFLAGS=$pkg_cv_BASH_COMPLETION_CFLAGS
+ BASH_COMPLETION_LIBS=$pkg_cv_BASH_COMPLETION_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+ bash_completion=yes
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for bash-completions directory" >&5
+$as_echo_n "checking for bash-completions directory... " >&6; }
+
+
+if test -n "$bashcompdir"; then
+ pkg_cv_bashcompdir="$bashcompdir"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"bash-completion\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "bash-completion") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_bashcompdir=`$PKG_CONFIG --variable="completionsdir" "bash-completion" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+bashcompdir=$pkg_cv_bashcompdir
+
+if test "x$bashcompdir" = x""; then :
+
+fi
+
+ if test -z "$bashcompdir"; then :
+
+ bashcompdir="${sysconfdir}/bash_completion.d"
+
+fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $bashcompdir" >&5
+$as_echo "$bashcompdir" >&6; }
+
+
+fi
+ if test "x$bash_completion" = "xyes"; then
+ HAVE_BASH_COMPLETION_TRUE=
+ HAVE_BASH_COMPLETION_FALSE='#'
+else
+ HAVE_BASH_COMPLETION_TRUE='#'
+ HAVE_BASH_COMPLETION_FALSE=
+fi
+
+
+# Extract the first word of "perl", so it can be a program name with args.
+set dummy perl; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_PERL+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$PERL"; then
+ ac_cv_prog_PERL="$PERL" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_PERL="perl"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+ test -z "$ac_cv_prog_PERL" && ac_cv_prog_PERL="no"
+fi
+fi
+PERL=$ac_cv_prog_PERL
+if test -n "$PERL"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PERL" >&5
+$as_echo "$PERL" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+if test "x$PERL" != "xno"; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking if we have perl Pod::Man and Pod::Simple" >&5
+$as_echo_n "checking if we have perl Pod::Man and Pod::Simple... " >&6; }
+ if $PERL -MPod::Man -MPod::Simple -e 1 >&5 2>&1; then :
+
+ enable_pod=yes
+
+else
+
+ enable_pod=no
+
+fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $enable_pod" >&5
+$as_echo "$enable_pod" >&6; }
+
+fi
+ if test "x$PERL" != "xno" && test "x$enable_pod" = "xyes"; then
+ HAVE_POD_TRUE=
+ HAVE_POD_FALSE='#'
+else
+ HAVE_POD_TRUE='#'
+ HAVE_POD_FALSE=
+fi
+
+
+PODWRAPPER="$PERL $(pwd)/podwrapper.pl"
+
+
+# Check whether --enable-plugins was given.
+if test "${enable_plugins+set}" = set; then :
+ enableval=$enable_plugins;
+fi
+
+ if test "x$enable_plugins" != "xno"; then
+ HAVE_PLUGINS_TRUE=
+ HAVE_PLUGINS_FALSE='#'
+else
+ HAVE_PLUGINS_TRUE='#'
+ HAVE_PLUGINS_FALSE=
+fi
+
+
+# Check whether --enable-perl was given.
+if test "${enable_perl+set}" = set; then :
+ enableval=$enable_perl;
+else
+ enable_perl=yes
+fi
+
+if test "x$PERL" != "xno" && test "x$enable_perl" != "xno"; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Perl embed archlib" >&5
+$as_echo_n "checking for Perl embed archlib... " >&6; }
+ PERL_ARCHLIB="$($PERL -MConfig -e 'print $Config{archlib}')"
+ if test -n "$PERL_ARCHLIB" ; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PERL_ARCHLIB" >&5
+$as_echo "$PERL_ARCHLIB" >&6; }
+
+else
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: Perl embed module disabled" >&5
+$as_echo "$as_me: Perl embed module disabled" >&6;}
+ enable_perl=no
+
+fi
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Perl embed CFLAGS" >&5
+$as_echo_n "checking for Perl embed CFLAGS... " >&6; }
+ PERL_CFLAGS="$($PERL -MExtUtils::Embed -e 'ccflags')"
+ if test -n "$PERL_CFLAGS" ; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PERL_CFLAGS" >&5
+$as_echo "$PERL_CFLAGS" >&6; }
+
+else
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: Perl embed module disabled" >&5
+$as_echo "$as_me: Perl embed module disabled" >&6;}
+ enable_perl=no
+
+fi
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for Perl embed LDOPTS" >&5
+$as_echo_n "checking for Perl embed LDOPTS... " >&6; }
+ PERL_LDOPTS="$($PERL -MExtUtils::Embed -e 'ldopts')"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PERL_LDOPTS" >&5
+$as_echo "$PERL_LDOPTS" >&6; }
+
+
+fi
+ if test "x$enable_perl" != "xno" && test "x$PERL" != "xno"; then
+ HAVE_PERL_TRUE=
+ HAVE_PERL_FALSE='#'
+else
+ HAVE_PERL_TRUE='#'
+ HAVE_PERL_FALSE=
+fi
+
+
+
+
+
+# Extract the first word of "python", so it can be a program name with args.
+set dummy python; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_PYTHON+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$PYTHON"; then
+ ac_cv_prog_PYTHON="$PYTHON" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_PYTHON="python"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+ test -z "$ac_cv_prog_PYTHON" && ac_cv_prog_PYTHON="no"
+fi
+fi
+PYTHON=$ac_cv_prog_PYTHON
+if test -n "$PYTHON"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PYTHON" >&5
+$as_echo "$PYTHON" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+# Check whether --enable-python was given.
+if test "${enable_python+set}" = set; then :
+ enableval=$enable_python;
+else
+ enable_python=yes
+fi
+
+if test "x$PYTHON" != "xno" && test "x$enable_python" != "xno"; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking version of $PYTHON" >&5
+$as_echo_n "checking version of $PYTHON... " >&6; }
+ PYTHON_VERSION_MAJOR=`$PYTHON -c "import sys; print (sys.version_info[0])"`
+ PYTHON_VERSION_MINOR=`$PYTHON -c "import sys; print (sys.version_info[1])"`
+ PYTHON_VERSION="$PYTHON_VERSION_MAJOR.$PYTHON_VERSION_MINOR"
+ if test -n "$PYTHON_VERSION"; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $PYTHON_VERSION" >&5
+$as_echo "$PYTHON_VERSION" >&6; }
+
+else
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: Python embed module disabled" >&5
+$as_echo "$as_me: Python embed module disabled" >&6;}
+ enable_python=no
+
+fi
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5
+$as_echo_n "checking for PYTHON... " >&6; }
+
+if test -n "$PYTHON_CFLAGS"; then
+ pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python-\"\$PYTHON_VERSION\"-embed\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "python-"$PYTHON_VERSION"-embed") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python-"$PYTHON_VERSION"-embed" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$PYTHON_LIBS"; then
+ pkg_cv_PYTHON_LIBS="$PYTHON_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python-\"\$PYTHON_VERSION\"-embed\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "python-"$PYTHON_VERSION"-embed") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python-"$PYTHON_VERSION"-embed" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python-"$PYTHON_VERSION"-embed" 2>&1`
+ else
+ PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python-"$PYTHON_VERSION"-embed" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$PYTHON_PKG_ERRORS" >&5
+
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5
+$as_echo_n "checking for PYTHON... " >&6; }
+
+if test -n "$PYTHON_CFLAGS"; then
+ pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python-\"\$PYTHON_VERSION\"\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "python-"$PYTHON_VERSION"") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python-"$PYTHON_VERSION"" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$PYTHON_LIBS"; then
+ pkg_cv_PYTHON_LIBS="$PYTHON_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python-\"\$PYTHON_VERSION\"\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "python-"$PYTHON_VERSION"") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python-"$PYTHON_VERSION"" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python-"$PYTHON_VERSION"" 2>&1`
+ else
+ PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python-"$PYTHON_VERSION"" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$PYTHON_PKG_ERRORS" >&5
+
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5
+$as_echo_n "checking for PYTHON... " >&6; }
+
+if test -n "$PYTHON_CFLAGS"; then
+ pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "python") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$PYTHON_LIBS"; then
+ pkg_cv_PYTHON_LIBS="$PYTHON_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "python") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python" 2>&1`
+ else
+ PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$PYTHON_PKG_ERRORS" >&5
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5
+$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;}
+ enable_python=no
+
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5
+$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;}
+ enable_python=no
+
+else
+ PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS
+ PYTHON_LIBS=$pkg_cv_PYTHON_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+
+$as_echo "#define HAVE_PYTHON 1" >>confdefs.h
+
+
+fi
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5
+$as_echo_n "checking for PYTHON... " >&6; }
+
+if test -n "$PYTHON_CFLAGS"; then
+ pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "python") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$PYTHON_LIBS"; then
+ pkg_cv_PYTHON_LIBS="$PYTHON_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "python") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python" 2>&1`
+ else
+ PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$PYTHON_PKG_ERRORS" >&5
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5
+$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;}
+ enable_python=no
+
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5
+$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;}
+ enable_python=no
+
+else
+ PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS
+ PYTHON_LIBS=$pkg_cv_PYTHON_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+
+$as_echo "#define HAVE_PYTHON 1" >>confdefs.h
+
+
+fi
+else
+ PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS
+ PYTHON_LIBS=$pkg_cv_PYTHON_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+
+$as_echo "#define HAVE_PYTHON 1" >>confdefs.h
+
+
+fi
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5
+$as_echo_n "checking for PYTHON... " >&6; }
+
+if test -n "$PYTHON_CFLAGS"; then
+ pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python-\"\$PYTHON_VERSION\"\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "python-"$PYTHON_VERSION"") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python-"$PYTHON_VERSION"" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$PYTHON_LIBS"; then
+ pkg_cv_PYTHON_LIBS="$PYTHON_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python-\"\$PYTHON_VERSION\"\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "python-"$PYTHON_VERSION"") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python-"$PYTHON_VERSION"" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python-"$PYTHON_VERSION"" 2>&1`
+ else
+ PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python-"$PYTHON_VERSION"" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$PYTHON_PKG_ERRORS" >&5
+
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5
+$as_echo_n "checking for PYTHON... " >&6; }
+
+if test -n "$PYTHON_CFLAGS"; then
+ pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "python") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$PYTHON_LIBS"; then
+ pkg_cv_PYTHON_LIBS="$PYTHON_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "python") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python" 2>&1`
+ else
+ PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$PYTHON_PKG_ERRORS" >&5
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5
+$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;}
+ enable_python=no
+
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5
+$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;}
+ enable_python=no
+
+else
+ PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS
+ PYTHON_LIBS=$pkg_cv_PYTHON_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+
+$as_echo "#define HAVE_PYTHON 1" >>confdefs.h
+
+
+fi
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for PYTHON" >&5
+$as_echo_n "checking for PYTHON... " >&6; }
+
+if test -n "$PYTHON_CFLAGS"; then
+ pkg_cv_PYTHON_CFLAGS="$PYTHON_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "python") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_PYTHON_CFLAGS=`$PKG_CONFIG --cflags "python" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$PYTHON_LIBS"; then
+ pkg_cv_PYTHON_LIBS="$PYTHON_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"python\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "python") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_PYTHON_LIBS=`$PKG_CONFIG --libs "python" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ PYTHON_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "python" 2>&1`
+ else
+ PYTHON_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "python" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$PYTHON_PKG_ERRORS" >&5
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5
+$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;}
+ enable_python=no
+
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: python $PYTHON_VERSION not found" >&5
+$as_echo "$as_me: WARNING: python $PYTHON_VERSION not found" >&2;}
+ enable_python=no
+
+else
+ PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS
+ PYTHON_LIBS=$pkg_cv_PYTHON_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+
+$as_echo "#define HAVE_PYTHON 1" >>confdefs.h
+
+
+fi
+else
+ PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS
+ PYTHON_LIBS=$pkg_cv_PYTHON_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+
+$as_echo "#define HAVE_PYTHON 1" >>confdefs.h
+
+
+fi
+else
+ PYTHON_CFLAGS=$pkg_cv_PYTHON_CFLAGS
+ PYTHON_LIBS=$pkg_cv_PYTHON_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+
+$as_echo "#define HAVE_PYTHON 1" >>confdefs.h
+
+
+fi
+
+ old_LIBS="$LIBS"
+
+ PYTHON_BLDLIBRARY=`$PYTHON -c "import distutils.sysconfig; \
+ print (distutils.sysconfig.get_config_var('BLDLIBRARY'))"`
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PyString_FromString in -lc" >&5
+$as_echo_n "checking for PyString_FromString in -lc... " >&6; }
+if ${ac_cv_lib_c_PyString_FromString+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lc $PYTHON_BLDLIBRARY $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char PyString_FromString ();
+int
+main ()
+{
+return PyString_FromString ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_c_PyString_FromString=yes
+else
+ ac_cv_lib_c_PyString_FromString=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_PyString_FromString" >&5
+$as_echo "$ac_cv_lib_c_PyString_FromString" >&6; }
+if test "x$ac_cv_lib_c_PyString_FromString" = xyes; then :
+
+$as_echo "#define HAVE_PYSTRING_FROMSTRING 1" >>confdefs.h
+
+fi
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PyString_AsString in -lc" >&5
+$as_echo_n "checking for PyString_AsString in -lc... " >&6; }
+if ${ac_cv_lib_c_PyString_AsString+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lc $PYTHON_BLDLIBRARY $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char PyString_AsString ();
+int
+main ()
+{
+return PyString_AsString ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_c_PyString_AsString=yes
+else
+ ac_cv_lib_c_PyString_AsString=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_PyString_AsString" >&5
+$as_echo "$ac_cv_lib_c_PyString_AsString" >&6; }
+if test "x$ac_cv_lib_c_PyString_AsString" = xyes; then :
+
+$as_echo "#define HAVE_PYSTRING_ASSTRING 1" >>confdefs.h
+
+fi
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking for PyUnicode_AsUTF8 in -lc" >&5
+$as_echo_n "checking for PyUnicode_AsUTF8 in -lc... " >&6; }
+if ${ac_cv_lib_c_PyUnicode_AsUTF8+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ ac_check_lib_save_LIBS=$LIBS
+LIBS="-lc $PYTHON_BLDLIBRARY $LIBS"
+cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+/* Override any GCC internal prototype to avoid an error.
+ Use char because int might match the return type of a GCC
+ builtin and then its argument prototype would still apply. */
+#ifdef __cplusplus
+extern "C"
+#endif
+char PyUnicode_AsUTF8 ();
+int
+main ()
+{
+return PyUnicode_AsUTF8 ();
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_link "$LINENO"; then :
+ ac_cv_lib_c_PyUnicode_AsUTF8=yes
+else
+ ac_cv_lib_c_PyUnicode_AsUTF8=no
+fi
+rm -f core conftest.err conftest.$ac_objext \
+ conftest$ac_exeext conftest.$ac_ext
+LIBS=$ac_check_lib_save_LIBS
+fi
+{ $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_cv_lib_c_PyUnicode_AsUTF8" >&5
+$as_echo "$ac_cv_lib_c_PyUnicode_AsUTF8" >&6; }
+if test "x$ac_cv_lib_c_PyUnicode_AsUTF8" = xyes; then :
+
+$as_echo "#define HAVE_PYUNICODE_ASUTF8 1" >>confdefs.h
+
+fi
+
+
+ LIBS="$old_LIBS"
+
+
+fi
+ if test "x$enable_python" != "xno" && test "x$PYTHON" != "xno"; then
+ HAVE_PYTHON_TRUE=
+ HAVE_PYTHON_FALSE='#'
+else
+ HAVE_PYTHON_TRUE='#'
+ HAVE_PYTHON_FALSE=
+fi
+
+
+
+
+
+
+
+ # checking for ocamlc
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}ocamlc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamlc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLC+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$OCAMLC"; then
+ ac_cv_prog_OCAMLC="$OCAMLC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_OCAMLC="${ac_tool_prefix}ocamlc"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAMLC=$ac_cv_prog_OCAMLC
+if test -n "$OCAMLC"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLC" >&5
+$as_echo "$OCAMLC" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAMLC"; then
+ ac_ct_OCAMLC=$OCAMLC
+ # Extract the first word of "ocamlc", so it can be a program name with args.
+set dummy ocamlc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAMLC+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_OCAMLC"; then
+ ac_cv_prog_ac_ct_OCAMLC="$ac_ct_OCAMLC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_OCAMLC="ocamlc"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAMLC=$ac_cv_prog_ac_ct_OCAMLC
+if test -n "$ac_ct_OCAMLC"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLC" >&5
+$as_echo "$ac_ct_OCAMLC" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_OCAMLC" = x; then
+ OCAMLC="no"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ OCAMLC=$ac_ct_OCAMLC
+ fi
+else
+ OCAMLC="$ac_cv_prog_OCAMLC"
+fi
+
+
+ if test "$OCAMLC" != "no"; then
+ OCAMLVERSION=`$OCAMLC -v | sed -n -e 's|.*version* *\(.*\)$|\1|p'`
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: OCaml version is $OCAMLVERSION" >&5
+$as_echo "OCaml version is $OCAMLVERSION" >&6; }
+ # If OCAMLLIB is set, use it
+ if test "$OCAMLLIB" = ""; then
+ OCAMLLIB=`$OCAMLC -where 2>/dev/null || $OCAMLC -v|tail -1|cut -d ' ' -f 4`
+ else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: OCAMLLIB previously set; preserving it." >&5
+$as_echo "OCAMLLIB previously set; preserving it." >&6; }
+ fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: OCaml library path is $OCAMLLIB" >&5
+$as_echo "OCaml library path is $OCAMLLIB" >&6; }
+
+
+
+
+ # checking for ocamlopt
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}ocamlopt", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamlopt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLOPT+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$OCAMLOPT"; then
+ ac_cv_prog_OCAMLOPT="$OCAMLOPT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_OCAMLOPT="${ac_tool_prefix}ocamlopt"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAMLOPT=$ac_cv_prog_OCAMLOPT
+if test -n "$OCAMLOPT"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLOPT" >&5
+$as_echo "$OCAMLOPT" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAMLOPT"; then
+ ac_ct_OCAMLOPT=$OCAMLOPT
+ # Extract the first word of "ocamlopt", so it can be a program name with args.
+set dummy ocamlopt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAMLOPT+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_OCAMLOPT"; then
+ ac_cv_prog_ac_ct_OCAMLOPT="$ac_ct_OCAMLOPT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_OCAMLOPT="ocamlopt"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAMLOPT=$ac_cv_prog_ac_ct_OCAMLOPT
+if test -n "$ac_ct_OCAMLOPT"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLOPT" >&5
+$as_echo "$ac_ct_OCAMLOPT" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_OCAMLOPT" = x; then
+ OCAMLOPT="no"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ OCAMLOPT=$ac_ct_OCAMLOPT
+ fi
+else
+ OCAMLOPT="$ac_cv_prog_OCAMLOPT"
+fi
+
+ OCAMLBEST=byte
+ if test "$OCAMLOPT" = "no"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Cannot find ocamlopt; bytecode compilation only." >&5
+$as_echo "$as_me: WARNING: Cannot find ocamlopt; bytecode compilation only." >&2;}
+ else
+ TMPVERSION=`$OCAMLOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
+ if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: versions differs from ocamlc; ocamlopt discarded." >&5
+$as_echo "versions differs from ocamlc; ocamlopt discarded." >&6; }
+ OCAMLOPT=no
+ else
+ OCAMLBEST=opt
+ fi
+ fi
+
+
+
+ # checking for ocamlc.opt
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}ocamlc.opt", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamlc.opt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLCDOTOPT+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$OCAMLCDOTOPT"; then
+ ac_cv_prog_OCAMLCDOTOPT="$OCAMLCDOTOPT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_OCAMLCDOTOPT="${ac_tool_prefix}ocamlc.opt"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAMLCDOTOPT=$ac_cv_prog_OCAMLCDOTOPT
+if test -n "$OCAMLCDOTOPT"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLCDOTOPT" >&5
+$as_echo "$OCAMLCDOTOPT" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAMLCDOTOPT"; then
+ ac_ct_OCAMLCDOTOPT=$OCAMLCDOTOPT
+ # Extract the first word of "ocamlc.opt", so it can be a program name with args.
+set dummy ocamlc.opt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAMLCDOTOPT+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_OCAMLCDOTOPT"; then
+ ac_cv_prog_ac_ct_OCAMLCDOTOPT="$ac_ct_OCAMLCDOTOPT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_OCAMLCDOTOPT="ocamlc.opt"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAMLCDOTOPT=$ac_cv_prog_ac_ct_OCAMLCDOTOPT
+if test -n "$ac_ct_OCAMLCDOTOPT"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLCDOTOPT" >&5
+$as_echo "$ac_ct_OCAMLCDOTOPT" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_OCAMLCDOTOPT" = x; then
+ OCAMLCDOTOPT="no"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ OCAMLCDOTOPT=$ac_ct_OCAMLCDOTOPT
+ fi
+else
+ OCAMLCDOTOPT="$ac_cv_prog_OCAMLCDOTOPT"
+fi
+
+ if test "$OCAMLCDOTOPT" != "no"; then
+ TMPVERSION=`$OCAMLCDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
+ if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: versions differs from ocamlc; ocamlc.opt discarded." >&5
+$as_echo "versions differs from ocamlc; ocamlc.opt discarded." >&6; }
+ else
+ OCAMLC=$OCAMLCDOTOPT
+ fi
+ fi
+
+ # checking for ocamlopt.opt
+ if test "$OCAMLOPT" != "no" ; then
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}ocamlopt.opt", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamlopt.opt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLOPTDOTOPT+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$OCAMLOPTDOTOPT"; then
+ ac_cv_prog_OCAMLOPTDOTOPT="$OCAMLOPTDOTOPT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_OCAMLOPTDOTOPT="${ac_tool_prefix}ocamlopt.opt"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAMLOPTDOTOPT=$ac_cv_prog_OCAMLOPTDOTOPT
+if test -n "$OCAMLOPTDOTOPT"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLOPTDOTOPT" >&5
+$as_echo "$OCAMLOPTDOTOPT" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAMLOPTDOTOPT"; then
+ ac_ct_OCAMLOPTDOTOPT=$OCAMLOPTDOTOPT
+ # Extract the first word of "ocamlopt.opt", so it can be a program name with args.
+set dummy ocamlopt.opt; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAMLOPTDOTOPT+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_OCAMLOPTDOTOPT"; then
+ ac_cv_prog_ac_ct_OCAMLOPTDOTOPT="$ac_ct_OCAMLOPTDOTOPT" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_OCAMLOPTDOTOPT="ocamlopt.opt"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAMLOPTDOTOPT=$ac_cv_prog_ac_ct_OCAMLOPTDOTOPT
+if test -n "$ac_ct_OCAMLOPTDOTOPT"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLOPTDOTOPT" >&5
+$as_echo "$ac_ct_OCAMLOPTDOTOPT" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_OCAMLOPTDOTOPT" = x; then
+ OCAMLOPTDOTOPT="no"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ OCAMLOPTDOTOPT=$ac_ct_OCAMLOPTDOTOPT
+ fi
+else
+ OCAMLOPTDOTOPT="$ac_cv_prog_OCAMLOPTDOTOPT"
+fi
+
+ if test "$OCAMLOPTDOTOPT" != "no"; then
+ TMPVERSION=`$OCAMLOPTDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
+ if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: version differs from ocamlc; ocamlopt.opt discarded." >&5
+$as_echo "version differs from ocamlc; ocamlopt.opt discarded." >&6; }
+ else
+ OCAMLOPT=$OCAMLOPTDOTOPT
+ fi
+ fi
+ fi
+
+
+ fi
+
+
+
+ # checking for ocaml toplevel
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}ocaml", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocaml; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAML+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$OCAML"; then
+ ac_cv_prog_OCAML="$OCAML" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_OCAML="${ac_tool_prefix}ocaml"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAML=$ac_cv_prog_OCAML
+if test -n "$OCAML"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAML" >&5
+$as_echo "$OCAML" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAML"; then
+ ac_ct_OCAML=$OCAML
+ # Extract the first word of "ocaml", so it can be a program name with args.
+set dummy ocaml; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAML+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_OCAML"; then
+ ac_cv_prog_ac_ct_OCAML="$ac_ct_OCAML" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_OCAML="ocaml"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAML=$ac_cv_prog_ac_ct_OCAML
+if test -n "$ac_ct_OCAML"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAML" >&5
+$as_echo "$ac_ct_OCAML" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_OCAML" = x; then
+ OCAML="no"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ OCAML=$ac_ct_OCAML
+ fi
+else
+ OCAML="$ac_cv_prog_OCAML"
+fi
+
+
+ # checking for ocamldep
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}ocamldep", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamldep; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLDEP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$OCAMLDEP"; then
+ ac_cv_prog_OCAMLDEP="$OCAMLDEP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_OCAMLDEP="${ac_tool_prefix}ocamldep"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAMLDEP=$ac_cv_prog_OCAMLDEP
+if test -n "$OCAMLDEP"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLDEP" >&5
+$as_echo "$OCAMLDEP" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAMLDEP"; then
+ ac_ct_OCAMLDEP=$OCAMLDEP
+ # Extract the first word of "ocamldep", so it can be a program name with args.
+set dummy ocamldep; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAMLDEP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_OCAMLDEP"; then
+ ac_cv_prog_ac_ct_OCAMLDEP="$ac_ct_OCAMLDEP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_OCAMLDEP="ocamldep"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAMLDEP=$ac_cv_prog_ac_ct_OCAMLDEP
+if test -n "$ac_ct_OCAMLDEP"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLDEP" >&5
+$as_echo "$ac_ct_OCAMLDEP" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_OCAMLDEP" = x; then
+ OCAMLDEP="no"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ OCAMLDEP=$ac_ct_OCAMLDEP
+ fi
+else
+ OCAMLDEP="$ac_cv_prog_OCAMLDEP"
+fi
+
+
+ # checking for ocamlmktop
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}ocamlmktop", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamlmktop; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLMKTOP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$OCAMLMKTOP"; then
+ ac_cv_prog_OCAMLMKTOP="$OCAMLMKTOP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_OCAMLMKTOP="${ac_tool_prefix}ocamlmktop"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAMLMKTOP=$ac_cv_prog_OCAMLMKTOP
+if test -n "$OCAMLMKTOP"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLMKTOP" >&5
+$as_echo "$OCAMLMKTOP" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAMLMKTOP"; then
+ ac_ct_OCAMLMKTOP=$OCAMLMKTOP
+ # Extract the first word of "ocamlmktop", so it can be a program name with args.
+set dummy ocamlmktop; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAMLMKTOP+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_OCAMLMKTOP"; then
+ ac_cv_prog_ac_ct_OCAMLMKTOP="$ac_ct_OCAMLMKTOP" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_OCAMLMKTOP="ocamlmktop"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAMLMKTOP=$ac_cv_prog_ac_ct_OCAMLMKTOP
+if test -n "$ac_ct_OCAMLMKTOP"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLMKTOP" >&5
+$as_echo "$ac_ct_OCAMLMKTOP" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_OCAMLMKTOP" = x; then
+ OCAMLMKTOP="no"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ OCAMLMKTOP=$ac_ct_OCAMLMKTOP
+ fi
+else
+ OCAMLMKTOP="$ac_cv_prog_OCAMLMKTOP"
+fi
+
+
+ # checking for ocamlmklib
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}ocamlmklib", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamlmklib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLMKLIB+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$OCAMLMKLIB"; then
+ ac_cv_prog_OCAMLMKLIB="$OCAMLMKLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_OCAMLMKLIB="${ac_tool_prefix}ocamlmklib"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAMLMKLIB=$ac_cv_prog_OCAMLMKLIB
+if test -n "$OCAMLMKLIB"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLMKLIB" >&5
+$as_echo "$OCAMLMKLIB" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAMLMKLIB"; then
+ ac_ct_OCAMLMKLIB=$OCAMLMKLIB
+ # Extract the first word of "ocamlmklib", so it can be a program name with args.
+set dummy ocamlmklib; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAMLMKLIB+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_OCAMLMKLIB"; then
+ ac_cv_prog_ac_ct_OCAMLMKLIB="$ac_ct_OCAMLMKLIB" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_OCAMLMKLIB="ocamlmklib"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAMLMKLIB=$ac_cv_prog_ac_ct_OCAMLMKLIB
+if test -n "$ac_ct_OCAMLMKLIB"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLMKLIB" >&5
+$as_echo "$ac_ct_OCAMLMKLIB" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_OCAMLMKLIB" = x; then
+ OCAMLMKLIB="no"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ OCAMLMKLIB=$ac_ct_OCAMLMKLIB
+ fi
+else
+ OCAMLMKLIB="$ac_cv_prog_OCAMLMKLIB"
+fi
+
+
+ # checking for ocamldoc
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}ocamldoc", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamldoc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLDOC+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$OCAMLDOC"; then
+ ac_cv_prog_OCAMLDOC="$OCAMLDOC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_OCAMLDOC="${ac_tool_prefix}ocamldoc"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAMLDOC=$ac_cv_prog_OCAMLDOC
+if test -n "$OCAMLDOC"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLDOC" >&5
+$as_echo "$OCAMLDOC" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAMLDOC"; then
+ ac_ct_OCAMLDOC=$OCAMLDOC
+ # Extract the first word of "ocamldoc", so it can be a program name with args.
+set dummy ocamldoc; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAMLDOC+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_OCAMLDOC"; then
+ ac_cv_prog_ac_ct_OCAMLDOC="$ac_ct_OCAMLDOC" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_OCAMLDOC="ocamldoc"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAMLDOC=$ac_cv_prog_ac_ct_OCAMLDOC
+if test -n "$ac_ct_OCAMLDOC"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLDOC" >&5
+$as_echo "$ac_ct_OCAMLDOC" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_OCAMLDOC" = x; then
+ OCAMLDOC="no"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ OCAMLDOC=$ac_ct_OCAMLDOC
+ fi
+else
+ OCAMLDOC="$ac_cv_prog_OCAMLDOC"
+fi
+
+
+ # checking for ocamlbuild
+ if test -n "$ac_tool_prefix"; then
+ # Extract the first word of "${ac_tool_prefix}ocamlbuild", so it can be a program name with args.
+set dummy ${ac_tool_prefix}ocamlbuild; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_OCAMLBUILD+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$OCAMLBUILD"; then
+ ac_cv_prog_OCAMLBUILD="$OCAMLBUILD" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_OCAMLBUILD="${ac_tool_prefix}ocamlbuild"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+OCAMLBUILD=$ac_cv_prog_OCAMLBUILD
+if test -n "$OCAMLBUILD"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $OCAMLBUILD" >&5
+$as_echo "$OCAMLBUILD" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+fi
+if test -z "$ac_cv_prog_OCAMLBUILD"; then
+ ac_ct_OCAMLBUILD=$OCAMLBUILD
+ # Extract the first word of "ocamlbuild", so it can be a program name with args.
+set dummy ocamlbuild; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_ac_ct_OCAMLBUILD+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$ac_ct_OCAMLBUILD"; then
+ ac_cv_prog_ac_ct_OCAMLBUILD="$ac_ct_OCAMLBUILD" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_ac_ct_OCAMLBUILD="ocamlbuild"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+fi
+fi
+ac_ct_OCAMLBUILD=$ac_cv_prog_ac_ct_OCAMLBUILD
+if test -n "$ac_ct_OCAMLBUILD"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $ac_ct_OCAMLBUILD" >&5
+$as_echo "$ac_ct_OCAMLBUILD" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+ if test "x$ac_ct_OCAMLBUILD" = x; then
+ OCAMLBUILD="no"
+ else
+ case $cross_compiling:$ac_tool_warned in
+yes:)
+{ $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: using cross tools not prefixed with host triplet" >&5
+$as_echo "$as_me: WARNING: using cross tools not prefixed with host triplet" >&2;}
+ac_tool_warned=yes ;;
+esac
+ OCAMLBUILD=$ac_ct_OCAMLBUILD
+ fi
+else
+ OCAMLBUILD="$ac_cv_prog_OCAMLBUILD"
+fi
+
+
+# Check whether --enable-ocaml was given.
+if test "${enable_ocaml+set}" = set; then :
+ enableval=$enable_ocaml;
+else
+ enable_ocaml=yes
+fi
+
+if test "x$OCAMLOPT" != "xno" && test "x$enable_ocaml" != "xno"; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: checking if $OCAMLOPT can create a shared library" >&5
+$as_echo_n "checking if $OCAMLOPT can create a shared library... " >&6; }
+ echo 'print_endline "test"' > conftest.ml
+ if $OCAMLOPT $OCAMLOPTFLAGS -output-obj -runtime-variant _pic -o conftest.so conftest.ml >&5 2>&1; then :
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+ ocaml_link_shared=yes
+
+else
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+fi
+ rm -f conftest.ml conftest.cmi conftest.cmx conftest.so conftest.o
+
+fi
+ if test "x$OCAMLOPT" != "xno" &&
+ test "x$ocaml_link_shared" = "xyes"; then
+ HAVE_OCAML_TRUE=
+ HAVE_OCAML_FALSE='#'
+else
+ HAVE_OCAML_TRUE='#'
+ HAVE_OCAML_FALSE=
+fi
+
+
+# Extract the first word of "cargo", so it can be a program name with args.
+set dummy cargo; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_CARGO+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$CARGO"; then
+ ac_cv_prog_CARGO="$CARGO" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_CARGO="cargo"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+ test -z "$ac_cv_prog_CARGO" && ac_cv_prog_CARGO="no"
+fi
+fi
+CARGO=$ac_cv_prog_CARGO
+if test -n "$CARGO"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $CARGO" >&5
+$as_echo "$CARGO" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+# Check whether --enable-rust was given.
+if test "${enable_rust+set}" = set; then :
+ enableval=$enable_rust;
+else
+ enable_rust=yes
+fi
+
+ if test "x$CARGO" != "xno" && test "x$enable_rust" != "xno"; then
+ HAVE_RUST_TRUE=
+ HAVE_RUST_FALSE='#'
+else
+ HAVE_RUST_TRUE='#'
+ HAVE_RUST_FALSE=
+fi
+
+
+# Extract the first word of "ruby", so it can be a program name with args.
+set dummy ruby; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_RUBY+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$RUBY"; then
+ ac_cv_prog_RUBY="$RUBY" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_RUBY="ruby"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+ test -z "$ac_cv_prog_RUBY" && ac_cv_prog_RUBY="no"
+fi
+fi
+RUBY=$ac_cv_prog_RUBY
+if test -n "$RUBY"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $RUBY" >&5
+$as_echo "$RUBY" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+# Check whether --enable-ruby was given.
+if test "${enable_ruby+set}" = set; then :
+ enableval=$enable_ruby;
+else
+ enable_ruby=yes
+fi
+
+if test "x$RUBY" != "xno" && test "x$enable_ruby" != "xno"; then :
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for RUBY" >&5
+$as_echo_n "checking for RUBY... " >&6; }
+
+if test -n "$RUBY_CFLAGS"; then
+ pkg_cv_RUBY_CFLAGS="$RUBY_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ruby\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "ruby") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_RUBY_CFLAGS=`$PKG_CONFIG --cflags "ruby" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$RUBY_LIBS"; then
+ pkg_cv_RUBY_LIBS="$RUBY_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ruby\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "ruby") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_RUBY_LIBS=`$PKG_CONFIG --libs "ruby" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ RUBY_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "ruby" 2>&1`
+ else
+ RUBY_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "ruby" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$RUBY_PKG_ERRORS" >&5
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: ruby not found" >&5
+$as_echo "$as_me: WARNING: ruby not found" >&2;}
+ enable_ruby=no
+
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: ruby not found" >&5
+$as_echo "$as_me: WARNING: ruby not found" >&2;}
+ enable_ruby=no
+
+else
+ RUBY_CFLAGS=$pkg_cv_RUBY_CFLAGS
+ RUBY_LIBS=$pkg_cv_RUBY_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+fi
+
+fi
+ if test "x$RUBY" != "xno" &&
+ test "x$enable_ruby" = "xyes"; then
+ HAVE_RUBY_TRUE=
+ HAVE_RUBY_FALSE='#'
+else
+ HAVE_RUBY_TRUE='#'
+ HAVE_RUBY_FALSE=
+fi
+
+
+# Check whether --enable-tcl was given.
+if test "${enable_tcl+set}" = set; then :
+ enableval=$enable_tcl;
+else
+ enable_tcl=yes
+fi
+
+if test "x$enable_tcl" != "xno"; then :
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for TCL" >&5
+$as_echo_n "checking for TCL... " >&6; }
+
+if test -n "$TCL_CFLAGS"; then
+ pkg_cv_TCL_CFLAGS="$TCL_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"tcl\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "tcl") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_TCL_CFLAGS=`$PKG_CONFIG --cflags "tcl" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$TCL_LIBS"; then
+ pkg_cv_TCL_LIBS="$TCL_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"tcl\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "tcl") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_TCL_LIBS=`$PKG_CONFIG --libs "tcl" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ TCL_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "tcl" 2>&1`
+ else
+ TCL_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "tcl" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$TCL_PKG_ERRORS" >&5
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Tcl not found" >&5
+$as_echo "$as_me: WARNING: Tcl not found" >&2;}
+ enable_tcl=no
+
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Tcl not found" >&5
+$as_echo "$as_me: WARNING: Tcl not found" >&2;}
+ enable_tcl=no
+
+else
+ TCL_CFLAGS=$pkg_cv_TCL_CFLAGS
+ TCL_LIBS=$pkg_cv_TCL_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+fi
+
+fi
+ if test "x$enable_tcl" = "xyes"; then
+ HAVE_TCL_TRUE=
+ HAVE_TCL_FALSE='#'
+else
+ HAVE_TCL_TRUE='#'
+ HAVE_TCL_FALSE=
+fi
+
+
+# Check whether --enable-lua was given.
+if test "${enable_lua+set}" = set; then :
+ enableval=$enable_lua;
+else
+ enable_lua=yes
+fi
+
+if test "x$enable_lua" != "xno"; then :
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LUA" >&5
+$as_echo_n "checking for LUA... " >&6; }
+
+if test -n "$LUA_CFLAGS"; then
+ pkg_cv_LUA_CFLAGS="$LUA_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"lua\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "lua") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_LUA_CFLAGS=`$PKG_CONFIG --cflags "lua" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$LUA_LIBS"; then
+ pkg_cv_LUA_LIBS="$LUA_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"lua\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "lua") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_LUA_LIBS=`$PKG_CONFIG --libs "lua" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ LUA_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "lua" 2>&1`
+ else
+ LUA_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "lua" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$LUA_PKG_ERRORS" >&5
+
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Lua not found" >&5
+$as_echo "$as_me: WARNING: Lua not found" >&2;}
+ enable_lua=no
+
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: Lua not found" >&5
+$as_echo "$as_me: WARNING: Lua not found" >&2;}
+ enable_lua=no
+
+else
+ LUA_CFLAGS=$pkg_cv_LUA_CFLAGS
+ LUA_LIBS=$pkg_cv_LUA_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+ old_LIBS="$LIBS"
+ LIBS="$LUA_LIBS $LIBS"
+ for ac_func in lua_isinteger
+do :
+ ac_fn_c_check_func "$LINENO" "lua_isinteger" "ac_cv_func_lua_isinteger"
+if test "x$ac_cv_func_lua_isinteger" = xyes; then :
+ cat >>confdefs.h <<_ACEOF
+#define HAVE_LUA_ISINTEGER 1
+_ACEOF
+
+fi
+done
+
+ LIBS="$old_LIBS"
+
+fi
+
+fi
+ if test "x$enable_lua" = "xyes"; then
+ HAVE_LUA_TRUE=
+ HAVE_LUA_FALSE='#'
+else
+ HAVE_LUA_TRUE='#'
+ HAVE_LUA_FALSE=
+fi
+
+
+
+# Check whether --with-curl was given.
+if test "${with_curl+set}" = set; then :
+ withval=$with_curl;
+else
+ with_curl=check
+fi
+
+if test "$with_curl" != "no"; then :
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for CURL" >&5
+$as_echo_n "checking for CURL... " >&6; }
+
+if test -n "$CURL_CFLAGS"; then
+ pkg_cv_CURL_CFLAGS="$CURL_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libcurl\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "libcurl") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_CURL_CFLAGS=`$PKG_CONFIG --cflags "libcurl" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$CURL_LIBS"; then
+ pkg_cv_CURL_LIBS="$CURL_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libcurl\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "libcurl") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_CURL_LIBS=`$PKG_CONFIG --libs "libcurl" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ CURL_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libcurl" 2>&1`
+ else
+ CURL_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libcurl" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$CURL_PKG_ERRORS" >&5
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: curl not found, curl plugin will be disabled" >&5
+$as_echo "$as_me: WARNING: curl not found, curl plugin will be disabled" >&2;}
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: curl not found, curl plugin will be disabled" >&5
+$as_echo "$as_me: WARNING: curl not found, curl plugin will be disabled" >&2;}
+else
+ CURL_CFLAGS=$pkg_cv_CURL_CFLAGS
+ CURL_LIBS=$pkg_cv_CURL_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+$as_echo "#define HAVE_CURL 1" >>confdefs.h
+
+ ac_fn_c_check_decl "$LINENO" "CURLOPT_UNIX_SOCKET_PATH" "ac_cv_have_decl_CURLOPT_UNIX_SOCKET_PATH" "#include <curl/curl.h>
+"
+if test "x$ac_cv_have_decl_CURLOPT_UNIX_SOCKET_PATH" = xyes; then :
+
+
+$as_echo "#define HAVE_CURLOPT_UNIX_SOCKET_PATH 1" >>confdefs.h
+
+
+fi
+
+
+fi
+
+fi
+ if test "x$CURL_LIBS" != "x"; then
+ HAVE_CURL_TRUE=
+ HAVE_CURL_FALSE='#'
+else
+ HAVE_CURL_TRUE='#'
+ HAVE_CURL_FALSE=
+fi
+
+
+
+# Check whether --with-ssh was given.
+if test "${with_ssh+set}" = set; then :
+ withval=$with_ssh;
+else
+ with_ssh=check
+fi
+
+if test "$with_ssh" != "no"; then :
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for SSH" >&5
+$as_echo_n "checking for SSH... " >&6; }
+
+if test -n "$SSH_CFLAGS"; then
+ pkg_cv_SSH_CFLAGS="$SSH_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libssh >= 0.8.0\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "libssh >= 0.8.0") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_SSH_CFLAGS=`$PKG_CONFIG --cflags "libssh >= 0.8.0" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$SSH_LIBS"; then
+ pkg_cv_SSH_LIBS="$SSH_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libssh >= 0.8.0\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "libssh >= 0.8.0") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_SSH_LIBS=`$PKG_CONFIG --libs "libssh >= 0.8.0" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ SSH_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libssh >= 0.8.0" 2>&1`
+ else
+ SSH_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libssh >= 0.8.0" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$SSH_PKG_ERRORS" >&5
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libssh not found, ssh plugin will be disabled" >&5
+$as_echo "$as_me: WARNING: libssh not found, ssh plugin will be disabled" >&2;}
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libssh not found, ssh plugin will be disabled" >&5
+$as_echo "$as_me: WARNING: libssh not found, ssh plugin will be disabled" >&2;}
+else
+ SSH_CFLAGS=$pkg_cv_SSH_CFLAGS
+ SSH_LIBS=$pkg_cv_SSH_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+fi
+
+fi
+ if test "x$SSH_LIBS" != "x"; then
+ HAVE_SSH_TRUE=
+ HAVE_SSH_FALSE='#'
+else
+ HAVE_SSH_TRUE='#'
+ HAVE_SSH_FALSE=
+fi
+
+
+ISOPROG="no"
+
+# Check whether --with-iso was given.
+if test "${with_iso+set}" = set; then :
+ withval=$with_iso;
+else
+ with_iso=check
+fi
+
+if test "$with_iso" != "no"; then :
+
+ # Extract the first word of "genisoimage", so it can be a program name with args.
+set dummy genisoimage; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_GENISOIMAGE+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$GENISOIMAGE"; then
+ ac_cv_prog_GENISOIMAGE="$GENISOIMAGE" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_GENISOIMAGE="genisoimage"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+ test -z "$ac_cv_prog_GENISOIMAGE" && ac_cv_prog_GENISOIMAGE="no"
+fi
+fi
+GENISOIMAGE=$ac_cv_prog_GENISOIMAGE
+if test -n "$GENISOIMAGE"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GENISOIMAGE" >&5
+$as_echo "$GENISOIMAGE" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ # Extract the first word of "mkisofs", so it can be a program name with args.
+set dummy mkisofs; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_MKISOFS+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$MKISOFS"; then
+ ac_cv_prog_MKISOFS="$MKISOFS" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_MKISOFS="mkisofs"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+ test -z "$ac_cv_prog_MKISOFS" && ac_cv_prog_MKISOFS="no"
+fi
+fi
+MKISOFS=$ac_cv_prog_MKISOFS
+if test -n "$MKISOFS"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $MKISOFS" >&5
+$as_echo "$MKISOFS" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ if test "x$GENISOIMAGE" != "xno"; then :
+
+ ISOPROG="$GENISOIMAGE"
+
+else
+
+ if test "x$MKISOFS" != "xno"; then :
+
+ ISOPROG="$MKISOFS"
+
+fi
+
+fi
+ if test "x$ISOPROG" != "xno"; then :
+
+
+cat >>confdefs.h <<_ACEOF
+#define ISOPROG "$ISOPROG"
+_ACEOF
+
+
+fi
+
+fi
+
+ if test "x$ISOPROG" != "xno"; then
+ HAVE_ISO_TRUE=
+ HAVE_ISO_FALSE='#'
+else
+ HAVE_ISO_TRUE='#'
+ HAVE_ISO_FALSE=
+fi
+
+
+
+# Check whether --with-libvirt was given.
+if test "${with_libvirt+set}" = set; then :
+ withval=$with_libvirt;
+else
+ with_libvirt=check
+fi
+
+if test "$with_libvirt" != "no"; then :
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBVIRT" >&5
+$as_echo_n "checking for LIBVIRT... " >&6; }
+
+if test -n "$LIBVIRT_CFLAGS"; then
+ pkg_cv_LIBVIRT_CFLAGS="$LIBVIRT_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libvirt\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "libvirt") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_LIBVIRT_CFLAGS=`$PKG_CONFIG --cflags "libvirt" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$LIBVIRT_LIBS"; then
+ pkg_cv_LIBVIRT_LIBS="$LIBVIRT_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libvirt\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "libvirt") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_LIBVIRT_LIBS=`$PKG_CONFIG --libs "libvirt" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ LIBVIRT_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libvirt" 2>&1`
+ else
+ LIBVIRT_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libvirt" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$LIBVIRT_PKG_ERRORS" >&5
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libvirt not found, libvirt plugin will be disabled" >&5
+$as_echo "$as_me: WARNING: libvirt not found, libvirt plugin will be disabled" >&2;}
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libvirt not found, libvirt plugin will be disabled" >&5
+$as_echo "$as_me: WARNING: libvirt not found, libvirt plugin will be disabled" >&2;}
+else
+ LIBVIRT_CFLAGS=$pkg_cv_LIBVIRT_CFLAGS
+ LIBVIRT_LIBS=$pkg_cv_LIBVIRT_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+$as_echo "#define HAVE_LIBVIRT 1" >>confdefs.h
+
+
+fi
+
+fi
+ if test "x$LIBVIRT_LIBS" != "x"; then
+ HAVE_LIBVIRT_TRUE=
+ HAVE_LIBVIRT_FALSE='#'
+else
+ HAVE_LIBVIRT_TRUE='#'
+ HAVE_LIBVIRT_FALSE=
+fi
+
+
+
+# Check whether --with-zlib was given.
+if test "${with_zlib+set}" = set; then :
+ withval=$with_zlib;
+else
+ with_zlib=check
+fi
+
+if test "$with_zlib" != "no"; then :
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for ZLIB" >&5
+$as_echo_n "checking for ZLIB... " >&6; }
+
+if test -n "$ZLIB_CFLAGS"; then
+ pkg_cv_ZLIB_CFLAGS="$ZLIB_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"zlib >= 1.2.3.5\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "zlib >= 1.2.3.5") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_ZLIB_CFLAGS=`$PKG_CONFIG --cflags "zlib >= 1.2.3.5" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$ZLIB_LIBS"; then
+ pkg_cv_ZLIB_LIBS="$ZLIB_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"zlib >= 1.2.3.5\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "zlib >= 1.2.3.5") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_ZLIB_LIBS=`$PKG_CONFIG --libs "zlib >= 1.2.3.5" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ ZLIB_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "zlib >= 1.2.3.5" 2>&1`
+ else
+ ZLIB_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "zlib >= 1.2.3.5" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$ZLIB_PKG_ERRORS" >&5
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: zlib >= 1.2.3.5 not found, gzip plugin will be disabled" >&5
+$as_echo "$as_me: WARNING: zlib >= 1.2.3.5 not found, gzip plugin will be disabled" >&2;}
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: zlib >= 1.2.3.5 not found, gzip plugin will be disabled" >&5
+$as_echo "$as_me: WARNING: zlib >= 1.2.3.5 not found, gzip plugin will be disabled" >&2;}
+else
+ ZLIB_CFLAGS=$pkg_cv_ZLIB_CFLAGS
+ ZLIB_LIBS=$pkg_cv_ZLIB_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+$as_echo "#define HAVE_ZLIB 1" >>confdefs.h
+
+
+fi
+
+fi
+ if test "x$ZLIB_LIBS" != "x"; then
+ HAVE_ZLIB_TRUE=
+ HAVE_ZLIB_FALSE='#'
+else
+ HAVE_ZLIB_TRUE='#'
+ HAVE_ZLIB_FALSE=
+fi
+
+
+
+# Check whether --with-liblzma was given.
+if test "${with_liblzma+set}" = set; then :
+ withval=$with_liblzma;
+else
+ with_liblzma=check
+fi
+
+if test "$with_liblzma" != "no"; then :
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBLZMA" >&5
+$as_echo_n "checking for LIBLZMA... " >&6; }
+
+if test -n "$LIBLZMA_CFLAGS"; then
+ pkg_cv_LIBLZMA_CFLAGS="$LIBLZMA_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"liblzma\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "liblzma") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_LIBLZMA_CFLAGS=`$PKG_CONFIG --cflags "liblzma" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$LIBLZMA_LIBS"; then
+ pkg_cv_LIBLZMA_LIBS="$LIBLZMA_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"liblzma\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "liblzma") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_LIBLZMA_LIBS=`$PKG_CONFIG --libs "liblzma" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ LIBLZMA_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "liblzma" 2>&1`
+ else
+ LIBLZMA_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "liblzma" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$LIBLZMA_PKG_ERRORS" >&5
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: liblzma not found, xz filter will be disabled" >&5
+$as_echo "$as_me: WARNING: liblzma not found, xz filter will be disabled" >&2;}
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: liblzma not found, xz filter will be disabled" >&5
+$as_echo "$as_me: WARNING: liblzma not found, xz filter will be disabled" >&2;}
+else
+ LIBLZMA_CFLAGS=$pkg_cv_LIBLZMA_CFLAGS
+ LIBLZMA_LIBS=$pkg_cv_LIBLZMA_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+$as_echo "#define HAVE_LIBLZMA 1" >>confdefs.h
+
+
+fi
+
+fi
+ if test "x$LIBLZMA_LIBS" != "x"; then
+ HAVE_LIBLZMA_TRUE=
+ HAVE_LIBLZMA_FALSE='#'
+else
+ HAVE_LIBLZMA_TRUE='#'
+ HAVE_LIBLZMA_FALSE=
+fi
+
+
+
+# Check whether --with-libguestfs was given.
+if test "${with_libguestfs+set}" = set; then :
+ withval=$with_libguestfs;
+else
+ with_libguestfs=check
+fi
+
+if test "$with_libguestfs" != "no"; then :
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for LIBGUESTFS" >&5
+$as_echo_n "checking for LIBGUESTFS... " >&6; }
+
+if test -n "$LIBGUESTFS_CFLAGS"; then
+ pkg_cv_LIBGUESTFS_CFLAGS="$LIBGUESTFS_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libguestfs\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "libguestfs") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_LIBGUESTFS_CFLAGS=`$PKG_CONFIG --cflags "libguestfs" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$LIBGUESTFS_LIBS"; then
+ pkg_cv_LIBGUESTFS_LIBS="$LIBGUESTFS_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"libguestfs\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "libguestfs") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_LIBGUESTFS_LIBS=`$PKG_CONFIG --libs "libguestfs" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ LIBGUESTFS_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "libguestfs" 2>&1`
+ else
+ LIBGUESTFS_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "libguestfs" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$LIBGUESTFS_PKG_ERRORS" >&5
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libguestfs not found, guestfs plugin and tests will be disabled" >&5
+$as_echo "$as_me: WARNING: libguestfs not found, guestfs plugin and tests will be disabled" >&2;}
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libguestfs not found, guestfs plugin and tests will be disabled" >&5
+$as_echo "$as_me: WARNING: libguestfs not found, guestfs plugin and tests will be disabled" >&2;}
+else
+ LIBGUESTFS_CFLAGS=$pkg_cv_LIBGUESTFS_CFLAGS
+ LIBGUESTFS_LIBS=$pkg_cv_LIBGUESTFS_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+ # Although the library was found, we want to make sure it supports nbd
+ cat confdefs.h - <<_ACEOF >conftest.$ac_ext
+/* end confdefs.h. */
+
+#include <guestfs.h>
+
+int
+main ()
+{
+
+#ifndef GUESTFS_ADD_DRIVE_OPTS_PROTOCOL
+#error unsupported
+#endif
+
+ ;
+ return 0;
+}
+_ACEOF
+if ac_fn_c_try_compile "$LINENO"; then :
+
+
+
+
+$as_echo "#define HAVE_LIBGUESTFS 1" >>confdefs.h
+
+
+else
+
+ LIBGUESTFS_LIBS=
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: libguestfs too old, guestfs plugin and tests will be disabled" >&5
+$as_echo "$as_me: WARNING: libguestfs too old, guestfs plugin and tests will be disabled" >&2;}
+fi
+rm -f core conftest.err conftest.$ac_objext conftest.$ac_ext
+
+fi
+
+fi
+ if test "x$LIBGUESTFS_LIBS" != "x"; then
+ HAVE_LIBGUESTFS_TRUE=
+ HAVE_LIBGUESTFS_FALSE='#'
+else
+ HAVE_LIBGUESTFS_TRUE='#'
+ HAVE_LIBGUESTFS_FALSE=
+fi
+
+
+# Extract the first word of "guestfish", so it can be a program name with args.
+set dummy guestfish; ac_word=$2
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for $ac_word" >&5
+$as_echo_n "checking for $ac_word... " >&6; }
+if ${ac_cv_prog_GUESTFISH+:} false; then :
+ $as_echo_n "(cached) " >&6
+else
+ if test -n "$GUESTFISH"; then
+ ac_cv_prog_GUESTFISH="$GUESTFISH" # Let the user override the test.
+else
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if as_fn_executable_p "$as_dir/$ac_word$ac_exec_ext"; then
+ ac_cv_prog_GUESTFISH="guestfish"
+ $as_echo "$as_me:${as_lineno-$LINENO}: found $as_dir/$ac_word$ac_exec_ext" >&5
+ break 2
+ fi
+done
+ done
+IFS=$as_save_IFS
+
+ test -z "$ac_cv_prog_GUESTFISH" && ac_cv_prog_GUESTFISH="no"
+fi
+fi
+GUESTFISH=$ac_cv_prog_GUESTFISH
+if test -n "$GUESTFISH"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: $GUESTFISH" >&5
+$as_echo "$GUESTFISH" >&6; }
+else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+fi
+
+
+ if test "x$GUESTFISH" != "xno"; then
+ HAVE_GUESTFISH_TRUE=
+ HAVE_GUESTFISH_FALSE='#'
+else
+ HAVE_GUESTFISH_TRUE='#'
+ HAVE_GUESTFISH_FALSE=
+fi
+
+
+
+# Check whether --with-ext2 was given.
+if test "${with_ext2+set}" = set; then :
+ withval=$with_ext2;
+else
+ with_ext2=check
+fi
+
+if test "$with_ext2" != "no"; then :
+
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for EXT2FS" >&5
+$as_echo_n "checking for EXT2FS... " >&6; }
+
+if test -n "$EXT2FS_CFLAGS"; then
+ pkg_cv_EXT2FS_CFLAGS="$EXT2FS_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ext2fs\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "ext2fs") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_EXT2FS_CFLAGS=`$PKG_CONFIG --cflags "ext2fs" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$EXT2FS_LIBS"; then
+ pkg_cv_EXT2FS_LIBS="$EXT2FS_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"ext2fs\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "ext2fs") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_EXT2FS_LIBS=`$PKG_CONFIG --libs "ext2fs" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ EXT2FS_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "ext2fs" 2>&1`
+ else
+ EXT2FS_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "ext2fs" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$EXT2FS_PKG_ERRORS" >&5
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: ext2fs not found, ext2 plugin will be disabled" >&5
+$as_echo "$as_me: WARNING: ext2fs not found, ext2 plugin will be disabled" >&2;}
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: ext2fs not found, ext2 plugin will be disabled" >&5
+$as_echo "$as_me: WARNING: ext2fs not found, ext2 plugin will be disabled" >&2;}
+else
+ EXT2FS_CFLAGS=$pkg_cv_EXT2FS_CFLAGS
+ EXT2FS_LIBS=$pkg_cv_EXT2FS_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+$as_echo "#define HAVE_EXT2FS 1" >>confdefs.h
+
+
+fi
+
+pkg_failed=no
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking for COM_ERR" >&5
+$as_echo_n "checking for COM_ERR... " >&6; }
+
+if test -n "$COM_ERR_CFLAGS"; then
+ pkg_cv_COM_ERR_CFLAGS="$COM_ERR_CFLAGS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"com_err\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "com_err") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_COM_ERR_CFLAGS=`$PKG_CONFIG --cflags "com_err" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+if test -n "$COM_ERR_LIBS"; then
+ pkg_cv_COM_ERR_LIBS="$COM_ERR_LIBS"
+ elif test -n "$PKG_CONFIG"; then
+ if test -n "$PKG_CONFIG" && \
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: \$PKG_CONFIG --exists --print-errors \"com_err\""; } >&5
+ ($PKG_CONFIG --exists --print-errors "com_err") 2>&5
+ ac_status=$?
+ $as_echo "$as_me:${as_lineno-$LINENO}: \$? = $ac_status" >&5
+ test $ac_status = 0; }; then
+ pkg_cv_COM_ERR_LIBS=`$PKG_CONFIG --libs "com_err" 2>/dev/null`
+ test "x$?" != "x0" && pkg_failed=yes
+else
+ pkg_failed=yes
+fi
+ else
+ pkg_failed=untried
+fi
+
+
+
+if test $pkg_failed = yes; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+
+if $PKG_CONFIG --atleast-pkgconfig-version 0.20; then
+ _pkg_short_errors_supported=yes
+else
+ _pkg_short_errors_supported=no
+fi
+ if test $_pkg_short_errors_supported = yes; then
+ COM_ERR_PKG_ERRORS=`$PKG_CONFIG --short-errors --print-errors --cflags --libs "com_err" 2>&1`
+ else
+ COM_ERR_PKG_ERRORS=`$PKG_CONFIG --print-errors --cflags --libs "com_err" 2>&1`
+ fi
+ # Put the nasty error message in config.log where it belongs
+ echo "$COM_ERR_PKG_ERRORS" >&5
+
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: com_err not found, ext2 plugin will be disabled" >&5
+$as_echo "$as_me: WARNING: com_err not found, ext2 plugin will be disabled" >&2;}
+elif test $pkg_failed = untried; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: no" >&5
+$as_echo "no" >&6; }
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: com_err not found, ext2 plugin will be disabled" >&5
+$as_echo "$as_me: WARNING: com_err not found, ext2 plugin will be disabled" >&2;}
+else
+ COM_ERR_CFLAGS=$pkg_cv_COM_ERR_CFLAGS
+ COM_ERR_LIBS=$pkg_cv_COM_ERR_LIBS
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: yes" >&5
+$as_echo "yes" >&6; }
+
+
+
+
+$as_echo "#define HAVE_COM_ERR 1" >>confdefs.h
+
+
+fi
+
+fi
+ if test "x$EXT2FS_LIBS" != "x" && test "x$COM_ERR_LIBS" != "x"; then
+ HAVE_EXT2_TRUE=
+ HAVE_EXT2_FALSE='#'
+else
+ HAVE_EXT2_TRUE='#'
+ HAVE_EXT2_FALSE=
+fi
+
+
+# Check whether --enable-vddk was given.
+if test "${enable_vddk+set}" = set; then :
+ enableval=$enable_vddk;
+else
+ enable_vddk=yes
+fi
+
+ if test "x$enable_vddk" = "xyes"; then
+ HAVE_VDDK_TRUE=
+ HAVE_VDDK_FALSE='#'
+else
+ HAVE_VDDK_TRUE='#'
+ HAVE_VDDK_FALSE=
+fi
+
+
+lang_plugins="\
+ lua \
+ ocaml \
+ perl \
+ python \
+ ruby \
+ rust \
+ sh \
+ tcl \
+ "
+non_lang_plugins="\
+ curl \
+ data \
+ example1 \
+ example2 \
+ example3 \
+ example4 \
+ ext2 \
+ file \
+ floppy \
+ full \
+ guestfs \
+ gzip \
+ iso \
+ libvirt \
+ linuxdisk \
+ memory \
+ nbd \
+ null \
+ partitioning \
+ pattern \
+ random \
+ split \
+ ssh \
+ streaming \
+ tar \
+ vddk \
+ zero \
+ "
+plugins="$(echo $(printf %s\\n $lang_plugins $non_lang_plugins | sort -u))"
+filters="\
+ blocksize \
+ cache \
+ cow \
+ delay \
+ error \
+ fua \
+ log \
+ noextents \
+ nozero \
+ offset \
+ partition \
+ rate \
+ readahead \
+ truncate \
+ xz \
+ "
+
+
+
+
+
+ac_config_headers="$ac_config_headers config.h"
+
+ac_config_files="$ac_config_files podwrapper.pl"
+
+ac_config_files="$ac_config_files Makefile bash/Makefile common/bitmap/Makefile common/gpt/Makefile common/include/Makefile common/protocol/Makefile common/regions/Makefile common/sparse/Makefile common/utils/Makefile docs/Makefile include/Makefile plugins/Makefile plugins/curl/Makefile plugins/data/Makefile plugins/example1/Makefile plugins/example2/Makefile plugins/example3/Makefile plugins/example4/Makefile plugins/ext2/Makefile plugins/file/Makefile plugins/floppy/Makefile plugins/full/Makefile plugins/guestfs/Makefile plugins/gzip/Makefile plugins/iso/Makefile plugins/libvirt/Makefile plugins/linuxdisk/Makefile plugins/lua/Makefile plugins/memory/Makefile plugins/nbd/Makefile plugins/null/Makefile plugins/ocaml/Makefile plugins/partitioning/Makefile plugins/pattern/Makefile plugins/perl/Makefile plugins/python/Makefile plugins/random/Makefile plugins/ruby/Makefile plugins/rust/Cargo.toml plugins/rust/Makefile plugins/sh/Makefile plugins/ssh/Makefile plugins/split/Makefile plugins/streaming/Makefile plugins/tar/Makefile plugins/tcl/Makefile plugins/vddk/Makefile plugins/zero/Makefile filters/Makefile filters/blocksize/Makefile filters/cache/Makefile filters/cow/Makefile filters/delay/Makefile filters/error/Makefile filters/fua/Makefile filters/log/Makefile filters/noextents/Makefile filters/nozero/Makefile filters/offset/Makefile filters/partition/Makefile filters/rate/Makefile filters/readahead/Makefile filters/truncate/Makefile filters/xz/Makefile fuzzing/Makefile server/Makefile server/nbdkit.pc tests/functions.sh tests/Makefile valgrind/Makefile"
+
+
+cat >confcache <<\_ACEOF
+# This file is a shell script that caches the results of configure
+# tests run on this system so they can be shared between configure
+# scripts and configure runs, see configure's option --config-cache.
+# It is not useful on other systems. If it contains results you don't
+# want to keep, you may remove or edit it.
+#
+# config.status only pays attention to the cache file if you give it
+# the --recheck option to rerun configure.
+#
+# `ac_cv_env_foo' variables (set or unset) will be overridden when
+# loading this file, other *unset* `ac_cv_foo' will be assigned the
+# following values.
+
+_ACEOF
+
+# The following way of writing the cache mishandles newlines in values,
+# but we know of no workaround that is simple, portable, and efficient.
+# So, we kill variables containing newlines.
+# Ultrix sh set writes to stderr and can't be redirected directly,
+# and sets the high bit in the cache file unless we assign to the vars.
+(
+ for ac_var in `(set) 2>&1 | sed -n 's/^\([a-zA-Z_][a-zA-Z0-9_]*\)=.*/\1/p'`; do
+ eval ac_val=\$$ac_var
+ case $ac_val in #(
+ *${as_nl}*)
+ case $ac_var in #(
+ *_cv_*) { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: cache variable $ac_var contains a newline" >&5
+$as_echo "$as_me: WARNING: cache variable $ac_var contains a newline" >&2;} ;;
+ esac
+ case $ac_var in #(
+ _ | IFS | as_nl) ;; #(
+ BASH_ARGV | BASH_SOURCE) eval $ac_var= ;; #(
+ *) { eval $ac_var=; unset $ac_var;} ;;
+ esac ;;
+ esac
+ done
+
+ (set) 2>&1 |
+ case $as_nl`(ac_space=' '; set) 2>&1` in #(
+ *${as_nl}ac_space=\ *)
+ # `set' does not quote correctly, so add quotes: double-quote
+ # substitution turns \\\\ into \\, and sed turns \\ into \.
+ sed -n \
+ "s/'/'\\\\''/g;
+ s/^\\([_$as_cr_alnum]*_cv_[_$as_cr_alnum]*\\)=\\(.*\\)/\\1='\\2'/p"
+ ;; #(
+ *)
+ # `set' quotes correctly as required by POSIX, so do not add quotes.
+ sed -n "/^[_$as_cr_alnum]*_cv_[_$as_cr_alnum]*=/p"
+ ;;
+ esac |
+ sort
+) |
+ sed '
+ /^ac_cv_env_/b end
+ t clear
+ :clear
+ s/^\([^=]*\)=\(.*[{}].*\)$/test "${\1+set}" = set || &/
+ t end
+ s/^\([^=]*\)=\(.*\)$/\1=${\1=\2}/
+ :end' >>confcache
+if diff "$cache_file" confcache >/dev/null 2>&1; then :; else
+ if test -w "$cache_file"; then
+ if test "x$cache_file" != "x/dev/null"; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: updating cache $cache_file" >&5
+$as_echo "$as_me: updating cache $cache_file" >&6;}
+ if test ! -f "$cache_file" || test -h "$cache_file"; then
+ cat confcache >"$cache_file"
+ else
+ case $cache_file in #(
+ */* | ?:*)
+ mv -f confcache "$cache_file"$$ &&
+ mv -f "$cache_file"$$ "$cache_file" ;; #(
+ *)
+ mv -f confcache "$cache_file" ;;
+ esac
+ fi
+ fi
+ else
+ { $as_echo "$as_me:${as_lineno-$LINENO}: not updating unwritable cache $cache_file" >&5
+$as_echo "$as_me: not updating unwritable cache $cache_file" >&6;}
+ fi
+fi
+rm -f confcache
+
+test "x$prefix" = xNONE && prefix=$ac_default_prefix
+# Let make expand exec_prefix.
+test "x$exec_prefix" = xNONE && exec_prefix='${prefix}'
+
+DEFS=-DHAVE_CONFIG_H
+
+ac_libobjs=
+ac_ltlibobjs=
+U=
+for ac_i in : $LIBOBJS; do test "x$ac_i" = x: && continue
+ # 1. Remove the extension, and $U if already installed.
+ ac_script='s/\$U\././;s/\.o$//;s/\.obj$//'
+ ac_i=`$as_echo "$ac_i" | sed "$ac_script"`
+ # 2. Prepend LIBOBJDIR. When used with automake>=1.10 LIBOBJDIR
+ # will be set to the directory where LIBOBJS objects are built.
+ as_fn_append ac_libobjs " \${LIBOBJDIR}$ac_i\$U.$ac_objext"
+ as_fn_append ac_ltlibobjs " \${LIBOBJDIR}$ac_i"'$U.lo'
+done
+LIBOBJS=$ac_libobjs
+
+LTLIBOBJS=$ac_ltlibobjs
+
+
+{ $as_echo "$as_me:${as_lineno-$LINENO}: checking that generated files are newer than configure" >&5
+$as_echo_n "checking that generated files are newer than configure... " >&6; }
+ if test -n "$am_sleep_pid"; then
+ # Hide warnings about reused PIDs.
+ wait $am_sleep_pid 2>/dev/null
+ fi
+ { $as_echo "$as_me:${as_lineno-$LINENO}: result: done" >&5
+$as_echo "done" >&6; }
+if test -z "${AMDEP_TRUE}" && test -z "${AMDEP_FALSE}"; then
+ as_fn_error $? "conditional \"AMDEP\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${am__fastdepCC_TRUE}" && test -z "${am__fastdepCC_FALSE}"; then
+ as_fn_error $? "conditional \"am__fastdepCC\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+ if test -n "$EXEEXT"; then
+ am__EXEEXT_TRUE=
+ am__EXEEXT_FALSE='#'
+else
+ am__EXEEXT_TRUE='#'
+ am__EXEEXT_FALSE=
+fi
+
+if test -z "${am__fastdepCXX_TRUE}" && test -z "${am__fastdepCXX_FALSE}"; then
+ as_fn_error $? "conditional \"am__fastdepCXX\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_CXX_TRUE}" && test -z "${HAVE_CXX_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_CXX\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${CAN_TEST_ANSI_C_TRUE}" && test -z "${CAN_TEST_ANSI_C_FALSE}"; then
+ as_fn_error $? "conditional \"CAN_TEST_ANSI_C\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_ICONV_TRUE}" && test -z "${HAVE_ICONV_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_ICONV\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${USE_LINKER_SCRIPT_FOR_SERVER_TRUE}" && test -z "${USE_LINKER_SCRIPT_FOR_SERVER_FALSE}"; then
+ as_fn_error $? "conditional \"USE_LINKER_SCRIPT_FOR_SERVER\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_BASH_COMPLETION_TRUE}" && test -z "${HAVE_BASH_COMPLETION_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_BASH_COMPLETION\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_POD_TRUE}" && test -z "${HAVE_POD_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_POD\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_PLUGINS_TRUE}" && test -z "${HAVE_PLUGINS_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_PLUGINS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_PERL_TRUE}" && test -z "${HAVE_PERL_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_PERL\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_PYTHON_TRUE}" && test -z "${HAVE_PYTHON_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_PYTHON\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_OCAML_TRUE}" && test -z "${HAVE_OCAML_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_OCAML\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_RUST_TRUE}" && test -z "${HAVE_RUST_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_RUST\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_RUBY_TRUE}" && test -z "${HAVE_RUBY_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_RUBY\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_TCL_TRUE}" && test -z "${HAVE_TCL_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_TCL\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_LUA_TRUE}" && test -z "${HAVE_LUA_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_LUA\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_CURL_TRUE}" && test -z "${HAVE_CURL_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_CURL\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_SSH_TRUE}" && test -z "${HAVE_SSH_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_SSH\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_ISO_TRUE}" && test -z "${HAVE_ISO_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_ISO\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_LIBVIRT_TRUE}" && test -z "${HAVE_LIBVIRT_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_LIBVIRT\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_ZLIB_TRUE}" && test -z "${HAVE_ZLIB_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_ZLIB\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_LIBLZMA_TRUE}" && test -z "${HAVE_LIBLZMA_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_LIBLZMA\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_LIBGUESTFS_TRUE}" && test -z "${HAVE_LIBGUESTFS_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_LIBGUESTFS\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_GUESTFISH_TRUE}" && test -z "${HAVE_GUESTFISH_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_GUESTFISH\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_EXT2_TRUE}" && test -z "${HAVE_EXT2_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_EXT2\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+if test -z "${HAVE_VDDK_TRUE}" && test -z "${HAVE_VDDK_FALSE}"; then
+ as_fn_error $? "conditional \"HAVE_VDDK\" was never defined.
+Usually this means the macro was only invoked conditionally." "$LINENO" 5
+fi
+
+: "${CONFIG_STATUS=./config.status}"
+ac_write_fail=0
+ac_clean_files_save=$ac_clean_files
+ac_clean_files="$ac_clean_files $CONFIG_STATUS"
+{ $as_echo "$as_me:${as_lineno-$LINENO}: creating $CONFIG_STATUS" >&5
+$as_echo "$as_me: creating $CONFIG_STATUS" >&6;}
+as_write_fail=0
+cat >$CONFIG_STATUS <<_ASEOF || as_write_fail=1
+#! $SHELL
+# Generated by $as_me.
+# Run this file to recreate the current configuration.
+# Compiler output produced by configure, useful for debugging
+# configure, is in config.log if it exists.
+
+debug=false
+ac_cs_recheck=false
+ac_cs_silent=false
+
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$CONFIG_STATUS <<\_ASEOF || as_write_fail=1
+## -------------------- ##
+## M4sh Initialization. ##
+## -------------------- ##
+
+# Be more Bourne compatible
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+ emulate sh
+ NULLCMD=:
+ # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+ # is contrary to our usage. Disable this feature.
+ alias -g '${1+"$@"}'='"$@"'
+ setopt NO_GLOB_SUBST
+else
+ case `(set -o) 2>/dev/null` in #(
+ *posix*) :
+ set -o posix ;; #(
+ *) :
+ ;;
+esac
+fi
+
+
+as_nl='
+'
+export as_nl
+# Printing a long string crashes Solaris 7 /usr/bin/printf.
+as_echo='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo
+as_echo=$as_echo$as_echo$as_echo$as_echo$as_echo$as_echo
+# Prefer a ksh shell builtin over an external printf program on Solaris,
+# but without wasting forks for bash or zsh.
+if test -z "$BASH_VERSION$ZSH_VERSION" \
+ && (test "X`print -r -- $as_echo`" = "X$as_echo") 2>/dev/null; then
+ as_echo='print -r --'
+ as_echo_n='print -rn --'
+elif (test "X`printf %s $as_echo`" = "X$as_echo") 2>/dev/null; then
+ as_echo='printf %s\n'
+ as_echo_n='printf %s'
+else
+ if test "X`(/usr/ucb/echo -n -n $as_echo) 2>/dev/null`" = "X-n $as_echo"; then
+ as_echo_body='eval /usr/ucb/echo -n "$1$as_nl"'
+ as_echo_n='/usr/ucb/echo -n'
+ else
+ as_echo_body='eval expr "X$1" : "X\\(.*\\)"'
+ as_echo_n_body='eval
+ arg=$1;
+ case $arg in #(
+ *"$as_nl"*)
+ expr "X$arg" : "X\\(.*\\)$as_nl";
+ arg=`expr "X$arg" : ".*$as_nl\\(.*\\)"`;;
+ esac;
+ expr "X$arg" : "X\\(.*\\)" | tr -d "$as_nl"
+ '
+ export as_echo_n_body
+ as_echo_n='sh -c $as_echo_n_body as_echo'
+ fi
+ export as_echo_body
+ as_echo='sh -c $as_echo_body as_echo'
+fi
+
+# The user is always right.
+if test "${PATH_SEPARATOR+set}" != set; then
+ PATH_SEPARATOR=:
+ (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+ (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+ PATH_SEPARATOR=';'
+ }
+fi
+
+
+# IFS
+# We need space, tab and new line, in precisely that order. Quoting is
+# there to prevent editors from complaining about space-tab.
+# (If _AS_PATH_WALK were called with IFS unset, it would disable word
+# splitting by setting IFS to empty value.)
+IFS=" "" $as_nl"
+
+# Find who we are. Look in the path if we contain no directory separator.
+as_myself=
+case $0 in #((
+ *[\\/]* ) as_myself=$0 ;;
+ *) as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ test -r "$as_dir/$0" && as_myself=$as_dir/$0 && break
+ done
+IFS=$as_save_IFS
+
+ ;;
+esac
+# We did not find ourselves, most probably we were run as `sh COMMAND'
+# in which case we are not to be found in the path.
+if test "x$as_myself" = x; then
+ as_myself=$0
+fi
+if test ! -f "$as_myself"; then
+ $as_echo "$as_myself: error: cannot find myself; rerun with an absolute file name" >&2
+ exit 1
+fi
+
+# Unset variables that we do not need and which cause bugs (e.g. in
+# pre-3.0 UWIN ksh). But do not cause bugs in bash 2.01; the "|| exit 1"
+# suppresses any "Segmentation fault" message there. '((' could
+# trigger a bug in pdksh 5.2.14.
+for as_var in BASH_ENV ENV MAIL MAILPATH
+do eval test x\${$as_var+set} = xset \
+ && ( (unset $as_var) || exit 1) >/dev/null 2>&1 && unset $as_var || :
+done
+PS1='$ '
+PS2='> '
+PS4='+ '
+
+# NLS nuisances.
+LC_ALL=C
+export LC_ALL
+LANGUAGE=C
+export LANGUAGE
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+
+# as_fn_error STATUS ERROR [LINENO LOG_FD]
+# ----------------------------------------
+# Output "`basename $0`: error: ERROR" to stderr. If LINENO and LOG_FD are
+# provided, also output the error to LOG_FD, referencing LINENO. Then exit the
+# script with STATUS, using 1 if that was 0.
+as_fn_error ()
+{
+ as_status=$1; test $as_status -eq 0 && as_status=1
+ if test "$4"; then
+ as_lineno=${as_lineno-"$3"} as_lineno_stack=as_lineno_stack=$as_lineno_stack
+ $as_echo "$as_me:${as_lineno-$LINENO}: error: $2" >&$4
+ fi
+ $as_echo "$as_me: error: $2" >&2
+ as_fn_exit $as_status
+} # as_fn_error
+
+
+# as_fn_set_status STATUS
+# -----------------------
+# Set $? to STATUS, without forking.
+as_fn_set_status ()
+{
+ return $1
+} # as_fn_set_status
+
+# as_fn_exit STATUS
+# -----------------
+# Exit the shell with STATUS, even in a "trap 0" or "set -e" context.
+as_fn_exit ()
+{
+ set +e
+ as_fn_set_status $1
+ exit $1
+} # as_fn_exit
+
+# as_fn_unset VAR
+# ---------------
+# Portably unset VAR.
+as_fn_unset ()
+{
+ { eval $1=; unset $1;}
+}
+as_unset=as_fn_unset
+# as_fn_append VAR VALUE
+# ----------------------
+# Append the text in VALUE to the end of the definition contained in VAR. Take
+# advantage of any shell optimizations that allow amortized linear growth over
+# repeated appends, instead of the typical quadratic growth present in naive
+# implementations.
+if (eval "as_var=1; as_var+=2; test x\$as_var = x12") 2>/dev/null; then :
+ eval 'as_fn_append ()
+ {
+ eval $1+=\$2
+ }'
+else
+ as_fn_append ()
+ {
+ eval $1=\$$1\$2
+ }
+fi # as_fn_append
+
+# as_fn_arith ARG...
+# ------------------
+# Perform arithmetic evaluation on the ARGs, and store the result in the
+# global $as_val. Take advantage of shells that can avoid forks. The arguments
+# must be portable across $(()) and expr.
+if (eval "test \$(( 1 + 1 )) = 2") 2>/dev/null; then :
+ eval 'as_fn_arith ()
+ {
+ as_val=$(( $* ))
+ }'
+else
+ as_fn_arith ()
+ {
+ as_val=`expr "$@" || test $? -eq 1`
+ }
+fi # as_fn_arith
+
+
+if expr a : '\(a\)' >/dev/null 2>&1 &&
+ test "X`expr 00001 : '.*\(...\)'`" = X001; then
+ as_expr=expr
+else
+ as_expr=false
+fi
+
+if (basename -- /) >/dev/null 2>&1 && test "X`basename -- / 2>&1`" = "X/"; then
+ as_basename=basename
+else
+ as_basename=false
+fi
+
+if (as_dir=`dirname -- /` && test "X$as_dir" = X/) >/dev/null 2>&1; then
+ as_dirname=dirname
+else
+ as_dirname=false
+fi
+
+as_me=`$as_basename -- "$0" ||
+$as_expr X/"$0" : '.*/\([^/][^/]*\)/*$' \| \
+ X"$0" : 'X\(//\)$' \| \
+ X"$0" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$0" |
+ sed '/^.*\/\([^/][^/]*\)\/*$/{
+ s//\1/
+ q
+ }
+ /^X\/\(\/\/\)$/{
+ s//\1/
+ q
+ }
+ /^X\/\(\/\).*/{
+ s//\1/
+ q
+ }
+ s/.*/./; q'`
+
+# Avoid depending upon Character Ranges.
+as_cr_letters='abcdefghijklmnopqrstuvwxyz'
+as_cr_LETTERS='ABCDEFGHIJKLMNOPQRSTUVWXYZ'
+as_cr_Letters=$as_cr_letters$as_cr_LETTERS
+as_cr_digits='0123456789'
+as_cr_alnum=$as_cr_Letters$as_cr_digits
+
+ECHO_C= ECHO_N= ECHO_T=
+case `echo -n x` in #(((((
+-n*)
+ case `echo 'xy\c'` in
+ *c*) ECHO_T=' ';; # ECHO_T is single tab character.
+ xy) ECHO_C='\c';;
+ *) echo `echo ksh88 bug on AIX 6.1` > /dev/null
+ ECHO_T=' ';;
+ esac;;
+*)
+ ECHO_N='-n';;
+esac
+
+rm -f conf$$ conf$$.exe conf$$.file
+if test -d conf$$.dir; then
+ rm -f conf$$.dir/conf$$.file
+else
+ rm -f conf$$.dir
+ mkdir conf$$.dir 2>/dev/null
+fi
+if (echo >conf$$.file) 2>/dev/null; then
+ if ln -s conf$$.file conf$$ 2>/dev/null; then
+ as_ln_s='ln -s'
+ # ... but there are two gotchas:
+ # 1) On MSYS, both `ln -s file dir' and `ln file dir' fail.
+ # 2) DJGPP < 2.04 has no symlinks; `ln -s' creates a wrapper executable.
+ # In both cases, we have to default to `cp -pR'.
+ ln -s conf$$.file conf$$.dir 2>/dev/null && test ! -f conf$$.exe ||
+ as_ln_s='cp -pR'
+ elif ln conf$$.file conf$$ 2>/dev/null; then
+ as_ln_s=ln
+ else
+ as_ln_s='cp -pR'
+ fi
+else
+ as_ln_s='cp -pR'
+fi
+rm -f conf$$ conf$$.exe conf$$.dir/conf$$.file conf$$.file
+rmdir conf$$.dir 2>/dev/null
+
+
+# as_fn_mkdir_p
+# -------------
+# Create "$as_dir" as a directory, including parents if necessary.
+as_fn_mkdir_p ()
+{
+
+ case $as_dir in #(
+ -*) as_dir=./$as_dir;;
+ esac
+ test -d "$as_dir" || eval $as_mkdir_p || {
+ as_dirs=
+ while :; do
+ case $as_dir in #(
+ *\'*) as_qdir=`$as_echo "$as_dir" | sed "s/'/'\\\\\\\\''/g"`;; #'(
+ *) as_qdir=$as_dir;;
+ esac
+ as_dirs="'$as_qdir' $as_dirs"
+ as_dir=`$as_dirname -- "$as_dir" ||
+$as_expr X"$as_dir" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$as_dir" : 'X\(//\)[^/]' \| \
+ X"$as_dir" : 'X\(//\)$' \| \
+ X"$as_dir" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$as_dir" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+ s//\1/
+ q
+ }
+ /^X\(\/\/\)[^/].*/{
+ s//\1/
+ q
+ }
+ /^X\(\/\/\)$/{
+ s//\1/
+ q
+ }
+ /^X\(\/\).*/{
+ s//\1/
+ q
+ }
+ s/.*/./; q'`
+ test -d "$as_dir" && break
+ done
+ test -z "$as_dirs" || eval "mkdir $as_dirs"
+ } || test -d "$as_dir" || as_fn_error $? "cannot create directory $as_dir"
+
+
+} # as_fn_mkdir_p
+if mkdir -p . 2>/dev/null; then
+ as_mkdir_p='mkdir -p "$as_dir"'
+else
+ test -d ./-p && rmdir ./-p
+ as_mkdir_p=false
+fi
+
+
+# as_fn_executable_p FILE
+# -----------------------
+# Test if FILE is an executable regular file.
+as_fn_executable_p ()
+{
+ test -f "$1" && test -x "$1"
+} # as_fn_executable_p
+as_test_x='test -x'
+as_executable_p=as_fn_executable_p
+
+# Sed expression to map a string onto a valid CPP name.
+as_tr_cpp="eval sed 'y%*$as_cr_letters%P$as_cr_LETTERS%;s%[^_$as_cr_alnum]%_%g'"
+
+# Sed expression to map a string onto a valid variable name.
+as_tr_sh="eval sed 'y%*+%pp%;s%[^_$as_cr_alnum]%_%g'"
+
+
+exec 6>&1
+## ----------------------------------- ##
+## Main body of $CONFIG_STATUS script. ##
+## ----------------------------------- ##
+_ASEOF
+test $as_write_fail = 0 && chmod +x $CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# Save the log message, to keep $0 and so on meaningful, and to
+# report actual input values of CONFIG_FILES etc. instead of their
+# values after options handling.
+ac_log="
+This file was extended by nbdkit $as_me 1.12.4, which was
+generated by GNU Autoconf 2.69. Invocation command line was
+
+ CONFIG_FILES = $CONFIG_FILES
+ CONFIG_HEADERS = $CONFIG_HEADERS
+ CONFIG_LINKS = $CONFIG_LINKS
+ CONFIG_COMMANDS = $CONFIG_COMMANDS
+ $ $0 $@
+
+on `(hostname || uname -n) 2>/dev/null | sed 1q`
+"
+
+_ACEOF
+
+case $ac_config_files in *"
+"*) set x $ac_config_files; shift; ac_config_files=$*;;
+esac
+
+case $ac_config_headers in *"
+"*) set x $ac_config_headers; shift; ac_config_headers=$*;;
+esac
+
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+# Files that config.status was made for.
+config_files="$ac_config_files"
+config_headers="$ac_config_headers"
+config_commands="$ac_config_commands"
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+ac_cs_usage="\
+\`$as_me' instantiates files and other configuration actions
+from templates according to the current configuration. Unless the files
+and actions are specified as TAGs, all are instantiated by default.
+
+Usage: $0 [OPTION]... [TAG]...
+
+ -h, --help print this help, then exit
+ -V, --version print version number and configuration settings, then exit
+ --config print configuration, then exit
+ -q, --quiet, --silent
+ do not print progress messages
+ -d, --debug don't remove temporary files
+ --recheck update $as_me by reconfiguring in the same conditions
+ --file=FILE[:TEMPLATE]
+ instantiate the configuration file FILE
+ --header=FILE[:TEMPLATE]
+ instantiate the configuration header FILE
+
+Configuration files:
+$config_files
+
+Configuration headers:
+$config_headers
+
+Configuration commands:
+$config_commands
+
+Report bugs to the package provider."
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_cs_config="`$as_echo "$ac_configure_args" | sed 's/^ //; s/[\\""\`\$]/\\\\&/g'`"
+ac_cs_version="\\
+nbdkit config.status 1.12.4
+configured by $0, generated by GNU Autoconf 2.69,
+ with options \\"\$ac_cs_config\\"
+
+Copyright (C) 2012 Free Software Foundation, Inc.
+This config.status script is free software; the Free Software Foundation
+gives unlimited permission to copy, distribute and modify it."
+
+ac_pwd='$ac_pwd'
+srcdir='$srcdir'
+INSTALL='$INSTALL'
+MKDIR_P='$MKDIR_P'
+AWK='$AWK'
+test -n "\$AWK" || AWK=awk
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# The default lists apply if the user does not specify any file.
+ac_need_defaults=:
+while test $# != 0
+do
+ case $1 in
+ --*=?*)
+ ac_option=`expr "X$1" : 'X\([^=]*\)='`
+ ac_optarg=`expr "X$1" : 'X[^=]*=\(.*\)'`
+ ac_shift=:
+ ;;
+ --*=)
+ ac_option=`expr "X$1" : 'X\([^=]*\)='`
+ ac_optarg=
+ ac_shift=:
+ ;;
+ *)
+ ac_option=$1
+ ac_optarg=$2
+ ac_shift=shift
+ ;;
+ esac
+
+ case $ac_option in
+ # Handling of the options.
+ -recheck | --recheck | --rechec | --reche | --rech | --rec | --re | --r)
+ ac_cs_recheck=: ;;
+ --version | --versio | --versi | --vers | --ver | --ve | --v | -V )
+ $as_echo "$ac_cs_version"; exit ;;
+ --config | --confi | --conf | --con | --co | --c )
+ $as_echo "$ac_cs_config"; exit ;;
+ --debug | --debu | --deb | --de | --d | -d )
+ debug=: ;;
+ --file | --fil | --fi | --f )
+ $ac_shift
+ case $ac_optarg in
+ *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+ '') as_fn_error $? "missing file argument" ;;
+ esac
+ as_fn_append CONFIG_FILES " '$ac_optarg'"
+ ac_need_defaults=false;;
+ --header | --heade | --head | --hea )
+ $ac_shift
+ case $ac_optarg in
+ *\'*) ac_optarg=`$as_echo "$ac_optarg" | sed "s/'/'\\\\\\\\''/g"` ;;
+ esac
+ as_fn_append CONFIG_HEADERS " '$ac_optarg'"
+ ac_need_defaults=false;;
+ --he | --h)
+ # Conflict between --help and --header
+ as_fn_error $? "ambiguous option: \`$1'
+Try \`$0 --help' for more information.";;
+ --help | --hel | -h )
+ $as_echo "$ac_cs_usage"; exit ;;
+ -q | -quiet | --quiet | --quie | --qui | --qu | --q \
+ | -silent | --silent | --silen | --sile | --sil | --si | --s)
+ ac_cs_silent=: ;;
+
+ # This is an error.
+ -*) as_fn_error $? "unrecognized option: \`$1'
+Try \`$0 --help' for more information." ;;
+
+ *) as_fn_append ac_config_targets " $1"
+ ac_need_defaults=false ;;
+
+ esac
+ shift
+done
+
+ac_configure_extra_args=
+
+if $ac_cs_silent; then
+ exec 6>/dev/null
+ ac_configure_extra_args="$ac_configure_extra_args --silent"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+if \$ac_cs_recheck; then
+ set X $SHELL '$0' $ac_configure_args \$ac_configure_extra_args --no-create --no-recursion
+ shift
+ \$as_echo "running CONFIG_SHELL=$SHELL \$*" >&6
+ CONFIG_SHELL='$SHELL'
+ export CONFIG_SHELL
+ exec "\$@"
+fi
+
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+exec 5>>config.log
+{
+ echo
+ sed 'h;s/./-/g;s/^.../## /;s/...$/ ##/;p;x;p;x' <<_ASBOX
+## Running $as_me. ##
+_ASBOX
+ $as_echo "$ac_log"
+} >&5
+
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+#
+# INIT-COMMANDS
+#
+AMDEP_TRUE="$AMDEP_TRUE" MAKE="${MAKE-make}"
+
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+sed_quote_subst='$sed_quote_subst'
+double_quote_subst='$double_quote_subst'
+delay_variable_subst='$delay_variable_subst'
+macro_version='`$ECHO "$macro_version" | $SED "$delay_single_quote_subst"`'
+macro_revision='`$ECHO "$macro_revision" | $SED "$delay_single_quote_subst"`'
+enable_shared='`$ECHO "$enable_shared" | $SED "$delay_single_quote_subst"`'
+enable_static='`$ECHO "$enable_static" | $SED "$delay_single_quote_subst"`'
+pic_mode='`$ECHO "$pic_mode" | $SED "$delay_single_quote_subst"`'
+enable_fast_install='`$ECHO "$enable_fast_install" | $SED "$delay_single_quote_subst"`'
+shared_archive_member_spec='`$ECHO "$shared_archive_member_spec" | $SED "$delay_single_quote_subst"`'
+SHELL='`$ECHO "$SHELL" | $SED "$delay_single_quote_subst"`'
+ECHO='`$ECHO "$ECHO" | $SED "$delay_single_quote_subst"`'
+PATH_SEPARATOR='`$ECHO "$PATH_SEPARATOR" | $SED "$delay_single_quote_subst"`'
+host_alias='`$ECHO "$host_alias" | $SED "$delay_single_quote_subst"`'
+host='`$ECHO "$host" | $SED "$delay_single_quote_subst"`'
+host_os='`$ECHO "$host_os" | $SED "$delay_single_quote_subst"`'
+build_alias='`$ECHO "$build_alias" | $SED "$delay_single_quote_subst"`'
+build='`$ECHO "$build" | $SED "$delay_single_quote_subst"`'
+build_os='`$ECHO "$build_os" | $SED "$delay_single_quote_subst"`'
+SED='`$ECHO "$SED" | $SED "$delay_single_quote_subst"`'
+Xsed='`$ECHO "$Xsed" | $SED "$delay_single_quote_subst"`'
+GREP='`$ECHO "$GREP" | $SED "$delay_single_quote_subst"`'
+EGREP='`$ECHO "$EGREP" | $SED "$delay_single_quote_subst"`'
+FGREP='`$ECHO "$FGREP" | $SED "$delay_single_quote_subst"`'
+LD='`$ECHO "$LD" | $SED "$delay_single_quote_subst"`'
+NM='`$ECHO "$NM" | $SED "$delay_single_quote_subst"`'
+LN_S='`$ECHO "$LN_S" | $SED "$delay_single_quote_subst"`'
+max_cmd_len='`$ECHO "$max_cmd_len" | $SED "$delay_single_quote_subst"`'
+ac_objext='`$ECHO "$ac_objext" | $SED "$delay_single_quote_subst"`'
+exeext='`$ECHO "$exeext" | $SED "$delay_single_quote_subst"`'
+lt_unset='`$ECHO "$lt_unset" | $SED "$delay_single_quote_subst"`'
+lt_SP2NL='`$ECHO "$lt_SP2NL" | $SED "$delay_single_quote_subst"`'
+lt_NL2SP='`$ECHO "$lt_NL2SP" | $SED "$delay_single_quote_subst"`'
+lt_cv_to_host_file_cmd='`$ECHO "$lt_cv_to_host_file_cmd" | $SED "$delay_single_quote_subst"`'
+lt_cv_to_tool_file_cmd='`$ECHO "$lt_cv_to_tool_file_cmd" | $SED "$delay_single_quote_subst"`'
+reload_flag='`$ECHO "$reload_flag" | $SED "$delay_single_quote_subst"`'
+reload_cmds='`$ECHO "$reload_cmds" | $SED "$delay_single_quote_subst"`'
+OBJDUMP='`$ECHO "$OBJDUMP" | $SED "$delay_single_quote_subst"`'
+deplibs_check_method='`$ECHO "$deplibs_check_method" | $SED "$delay_single_quote_subst"`'
+file_magic_cmd='`$ECHO "$file_magic_cmd" | $SED "$delay_single_quote_subst"`'
+file_magic_glob='`$ECHO "$file_magic_glob" | $SED "$delay_single_quote_subst"`'
+want_nocaseglob='`$ECHO "$want_nocaseglob" | $SED "$delay_single_quote_subst"`'
+DLLTOOL='`$ECHO "$DLLTOOL" | $SED "$delay_single_quote_subst"`'
+sharedlib_from_linklib_cmd='`$ECHO "$sharedlib_from_linklib_cmd" | $SED "$delay_single_quote_subst"`'
+AR='`$ECHO "$AR" | $SED "$delay_single_quote_subst"`'
+AR_FLAGS='`$ECHO "$AR_FLAGS" | $SED "$delay_single_quote_subst"`'
+archiver_list_spec='`$ECHO "$archiver_list_spec" | $SED "$delay_single_quote_subst"`'
+STRIP='`$ECHO "$STRIP" | $SED "$delay_single_quote_subst"`'
+RANLIB='`$ECHO "$RANLIB" | $SED "$delay_single_quote_subst"`'
+old_postinstall_cmds='`$ECHO "$old_postinstall_cmds" | $SED "$delay_single_quote_subst"`'
+old_postuninstall_cmds='`$ECHO "$old_postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
+old_archive_cmds='`$ECHO "$old_archive_cmds" | $SED "$delay_single_quote_subst"`'
+lock_old_archive_extraction='`$ECHO "$lock_old_archive_extraction" | $SED "$delay_single_quote_subst"`'
+CC='`$ECHO "$CC" | $SED "$delay_single_quote_subst"`'
+CFLAGS='`$ECHO "$CFLAGS" | $SED "$delay_single_quote_subst"`'
+compiler='`$ECHO "$compiler" | $SED "$delay_single_quote_subst"`'
+GCC='`$ECHO "$GCC" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_pipe='`$ECHO "$lt_cv_sys_global_symbol_pipe" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_cdecl='`$ECHO "$lt_cv_sys_global_symbol_to_cdecl" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_import='`$ECHO "$lt_cv_sys_global_symbol_to_import" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_c_name_address='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address" | $SED "$delay_single_quote_subst"`'
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix='`$ECHO "$lt_cv_sys_global_symbol_to_c_name_address_lib_prefix" | $SED "$delay_single_quote_subst"`'
+lt_cv_nm_interface='`$ECHO "$lt_cv_nm_interface" | $SED "$delay_single_quote_subst"`'
+nm_file_list_spec='`$ECHO "$nm_file_list_spec" | $SED "$delay_single_quote_subst"`'
+lt_sysroot='`$ECHO "$lt_sysroot" | $SED "$delay_single_quote_subst"`'
+lt_cv_truncate_bin='`$ECHO "$lt_cv_truncate_bin" | $SED "$delay_single_quote_subst"`'
+objdir='`$ECHO "$objdir" | $SED "$delay_single_quote_subst"`'
+MAGIC_CMD='`$ECHO "$MAGIC_CMD" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_no_builtin_flag='`$ECHO "$lt_prog_compiler_no_builtin_flag" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_pic='`$ECHO "$lt_prog_compiler_pic" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_wl='`$ECHO "$lt_prog_compiler_wl" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_static='`$ECHO "$lt_prog_compiler_static" | $SED "$delay_single_quote_subst"`'
+lt_cv_prog_compiler_c_o='`$ECHO "$lt_cv_prog_compiler_c_o" | $SED "$delay_single_quote_subst"`'
+need_locks='`$ECHO "$need_locks" | $SED "$delay_single_quote_subst"`'
+MANIFEST_TOOL='`$ECHO "$MANIFEST_TOOL" | $SED "$delay_single_quote_subst"`'
+DSYMUTIL='`$ECHO "$DSYMUTIL" | $SED "$delay_single_quote_subst"`'
+NMEDIT='`$ECHO "$NMEDIT" | $SED "$delay_single_quote_subst"`'
+LIPO='`$ECHO "$LIPO" | $SED "$delay_single_quote_subst"`'
+OTOOL='`$ECHO "$OTOOL" | $SED "$delay_single_quote_subst"`'
+OTOOL64='`$ECHO "$OTOOL64" | $SED "$delay_single_quote_subst"`'
+libext='`$ECHO "$libext" | $SED "$delay_single_quote_subst"`'
+shrext_cmds='`$ECHO "$shrext_cmds" | $SED "$delay_single_quote_subst"`'
+extract_expsyms_cmds='`$ECHO "$extract_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
+archive_cmds_need_lc='`$ECHO "$archive_cmds_need_lc" | $SED "$delay_single_quote_subst"`'
+enable_shared_with_static_runtimes='`$ECHO "$enable_shared_with_static_runtimes" | $SED "$delay_single_quote_subst"`'
+export_dynamic_flag_spec='`$ECHO "$export_dynamic_flag_spec" | $SED "$delay_single_quote_subst"`'
+whole_archive_flag_spec='`$ECHO "$whole_archive_flag_spec" | $SED "$delay_single_quote_subst"`'
+compiler_needs_object='`$ECHO "$compiler_needs_object" | $SED "$delay_single_quote_subst"`'
+old_archive_from_new_cmds='`$ECHO "$old_archive_from_new_cmds" | $SED "$delay_single_quote_subst"`'
+old_archive_from_expsyms_cmds='`$ECHO "$old_archive_from_expsyms_cmds" | $SED "$delay_single_quote_subst"`'
+archive_cmds='`$ECHO "$archive_cmds" | $SED "$delay_single_quote_subst"`'
+archive_expsym_cmds='`$ECHO "$archive_expsym_cmds" | $SED "$delay_single_quote_subst"`'
+module_cmds='`$ECHO "$module_cmds" | $SED "$delay_single_quote_subst"`'
+module_expsym_cmds='`$ECHO "$module_expsym_cmds" | $SED "$delay_single_quote_subst"`'
+with_gnu_ld='`$ECHO "$with_gnu_ld" | $SED "$delay_single_quote_subst"`'
+allow_undefined_flag='`$ECHO "$allow_undefined_flag" | $SED "$delay_single_quote_subst"`'
+no_undefined_flag='`$ECHO "$no_undefined_flag" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec='`$ECHO "$hardcode_libdir_flag_spec" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_separator='`$ECHO "$hardcode_libdir_separator" | $SED "$delay_single_quote_subst"`'
+hardcode_direct='`$ECHO "$hardcode_direct" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_absolute='`$ECHO "$hardcode_direct_absolute" | $SED "$delay_single_quote_subst"`'
+hardcode_minus_L='`$ECHO "$hardcode_minus_L" | $SED "$delay_single_quote_subst"`'
+hardcode_shlibpath_var='`$ECHO "$hardcode_shlibpath_var" | $SED "$delay_single_quote_subst"`'
+hardcode_automatic='`$ECHO "$hardcode_automatic" | $SED "$delay_single_quote_subst"`'
+inherit_rpath='`$ECHO "$inherit_rpath" | $SED "$delay_single_quote_subst"`'
+link_all_deplibs='`$ECHO "$link_all_deplibs" | $SED "$delay_single_quote_subst"`'
+always_export_symbols='`$ECHO "$always_export_symbols" | $SED "$delay_single_quote_subst"`'
+export_symbols_cmds='`$ECHO "$export_symbols_cmds" | $SED "$delay_single_quote_subst"`'
+exclude_expsyms='`$ECHO "$exclude_expsyms" | $SED "$delay_single_quote_subst"`'
+include_expsyms='`$ECHO "$include_expsyms" | $SED "$delay_single_quote_subst"`'
+prelink_cmds='`$ECHO "$prelink_cmds" | $SED "$delay_single_quote_subst"`'
+postlink_cmds='`$ECHO "$postlink_cmds" | $SED "$delay_single_quote_subst"`'
+file_list_spec='`$ECHO "$file_list_spec" | $SED "$delay_single_quote_subst"`'
+variables_saved_for_relink='`$ECHO "$variables_saved_for_relink" | $SED "$delay_single_quote_subst"`'
+need_lib_prefix='`$ECHO "$need_lib_prefix" | $SED "$delay_single_quote_subst"`'
+need_version='`$ECHO "$need_version" | $SED "$delay_single_quote_subst"`'
+version_type='`$ECHO "$version_type" | $SED "$delay_single_quote_subst"`'
+runpath_var='`$ECHO "$runpath_var" | $SED "$delay_single_quote_subst"`'
+shlibpath_var='`$ECHO "$shlibpath_var" | $SED "$delay_single_quote_subst"`'
+shlibpath_overrides_runpath='`$ECHO "$shlibpath_overrides_runpath" | $SED "$delay_single_quote_subst"`'
+libname_spec='`$ECHO "$libname_spec" | $SED "$delay_single_quote_subst"`'
+library_names_spec='`$ECHO "$library_names_spec" | $SED "$delay_single_quote_subst"`'
+soname_spec='`$ECHO "$soname_spec" | $SED "$delay_single_quote_subst"`'
+install_override_mode='`$ECHO "$install_override_mode" | $SED "$delay_single_quote_subst"`'
+postinstall_cmds='`$ECHO "$postinstall_cmds" | $SED "$delay_single_quote_subst"`'
+postuninstall_cmds='`$ECHO "$postuninstall_cmds" | $SED "$delay_single_quote_subst"`'
+finish_cmds='`$ECHO "$finish_cmds" | $SED "$delay_single_quote_subst"`'
+finish_eval='`$ECHO "$finish_eval" | $SED "$delay_single_quote_subst"`'
+hardcode_into_libs='`$ECHO "$hardcode_into_libs" | $SED "$delay_single_quote_subst"`'
+sys_lib_search_path_spec='`$ECHO "$sys_lib_search_path_spec" | $SED "$delay_single_quote_subst"`'
+configure_time_dlsearch_path='`$ECHO "$configure_time_dlsearch_path" | $SED "$delay_single_quote_subst"`'
+configure_time_lt_sys_library_path='`$ECHO "$configure_time_lt_sys_library_path" | $SED "$delay_single_quote_subst"`'
+hardcode_action='`$ECHO "$hardcode_action" | $SED "$delay_single_quote_subst"`'
+enable_dlopen='`$ECHO "$enable_dlopen" | $SED "$delay_single_quote_subst"`'
+enable_dlopen_self='`$ECHO "$enable_dlopen_self" | $SED "$delay_single_quote_subst"`'
+enable_dlopen_self_static='`$ECHO "$enable_dlopen_self_static" | $SED "$delay_single_quote_subst"`'
+old_striplib='`$ECHO "$old_striplib" | $SED "$delay_single_quote_subst"`'
+striplib='`$ECHO "$striplib" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_dirs='`$ECHO "$compiler_lib_search_dirs" | $SED "$delay_single_quote_subst"`'
+predep_objects='`$ECHO "$predep_objects" | $SED "$delay_single_quote_subst"`'
+postdep_objects='`$ECHO "$postdep_objects" | $SED "$delay_single_quote_subst"`'
+predeps='`$ECHO "$predeps" | $SED "$delay_single_quote_subst"`'
+postdeps='`$ECHO "$postdeps" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_path='`$ECHO "$compiler_lib_search_path" | $SED "$delay_single_quote_subst"`'
+LD_CXX='`$ECHO "$LD_CXX" | $SED "$delay_single_quote_subst"`'
+reload_flag_CXX='`$ECHO "$reload_flag_CXX" | $SED "$delay_single_quote_subst"`'
+reload_cmds_CXX='`$ECHO "$reload_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_cmds_CXX='`$ECHO "$old_archive_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_CXX='`$ECHO "$compiler_CXX" | $SED "$delay_single_quote_subst"`'
+GCC_CXX='`$ECHO "$GCC_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_no_builtin_flag_CXX='`$ECHO "$lt_prog_compiler_no_builtin_flag_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_pic_CXX='`$ECHO "$lt_prog_compiler_pic_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_wl_CXX='`$ECHO "$lt_prog_compiler_wl_CXX" | $SED "$delay_single_quote_subst"`'
+lt_prog_compiler_static_CXX='`$ECHO "$lt_prog_compiler_static_CXX" | $SED "$delay_single_quote_subst"`'
+lt_cv_prog_compiler_c_o_CXX='`$ECHO "$lt_cv_prog_compiler_c_o_CXX" | $SED "$delay_single_quote_subst"`'
+archive_cmds_need_lc_CXX='`$ECHO "$archive_cmds_need_lc_CXX" | $SED "$delay_single_quote_subst"`'
+enable_shared_with_static_runtimes_CXX='`$ECHO "$enable_shared_with_static_runtimes_CXX" | $SED "$delay_single_quote_subst"`'
+export_dynamic_flag_spec_CXX='`$ECHO "$export_dynamic_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+whole_archive_flag_spec_CXX='`$ECHO "$whole_archive_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_needs_object_CXX='`$ECHO "$compiler_needs_object_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_from_new_cmds_CXX='`$ECHO "$old_archive_from_new_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+old_archive_from_expsyms_cmds_CXX='`$ECHO "$old_archive_from_expsyms_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+archive_cmds_CXX='`$ECHO "$archive_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+archive_expsym_cmds_CXX='`$ECHO "$archive_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+module_cmds_CXX='`$ECHO "$module_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+module_expsym_cmds_CXX='`$ECHO "$module_expsym_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+with_gnu_ld_CXX='`$ECHO "$with_gnu_ld_CXX" | $SED "$delay_single_quote_subst"`'
+allow_undefined_flag_CXX='`$ECHO "$allow_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`'
+no_undefined_flag_CXX='`$ECHO "$no_undefined_flag_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_flag_spec_CXX='`$ECHO "$hardcode_libdir_flag_spec_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_libdir_separator_CXX='`$ECHO "$hardcode_libdir_separator_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_CXX='`$ECHO "$hardcode_direct_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_direct_absolute_CXX='`$ECHO "$hardcode_direct_absolute_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_minus_L_CXX='`$ECHO "$hardcode_minus_L_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_shlibpath_var_CXX='`$ECHO "$hardcode_shlibpath_var_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_automatic_CXX='`$ECHO "$hardcode_automatic_CXX" | $SED "$delay_single_quote_subst"`'
+inherit_rpath_CXX='`$ECHO "$inherit_rpath_CXX" | $SED "$delay_single_quote_subst"`'
+link_all_deplibs_CXX='`$ECHO "$link_all_deplibs_CXX" | $SED "$delay_single_quote_subst"`'
+always_export_symbols_CXX='`$ECHO "$always_export_symbols_CXX" | $SED "$delay_single_quote_subst"`'
+export_symbols_cmds_CXX='`$ECHO "$export_symbols_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+exclude_expsyms_CXX='`$ECHO "$exclude_expsyms_CXX" | $SED "$delay_single_quote_subst"`'
+include_expsyms_CXX='`$ECHO "$include_expsyms_CXX" | $SED "$delay_single_quote_subst"`'
+prelink_cmds_CXX='`$ECHO "$prelink_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+postlink_cmds_CXX='`$ECHO "$postlink_cmds_CXX" | $SED "$delay_single_quote_subst"`'
+file_list_spec_CXX='`$ECHO "$file_list_spec_CXX" | $SED "$delay_single_quote_subst"`'
+hardcode_action_CXX='`$ECHO "$hardcode_action_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_dirs_CXX='`$ECHO "$compiler_lib_search_dirs_CXX" | $SED "$delay_single_quote_subst"`'
+predep_objects_CXX='`$ECHO "$predep_objects_CXX" | $SED "$delay_single_quote_subst"`'
+postdep_objects_CXX='`$ECHO "$postdep_objects_CXX" | $SED "$delay_single_quote_subst"`'
+predeps_CXX='`$ECHO "$predeps_CXX" | $SED "$delay_single_quote_subst"`'
+postdeps_CXX='`$ECHO "$postdeps_CXX" | $SED "$delay_single_quote_subst"`'
+compiler_lib_search_path_CXX='`$ECHO "$compiler_lib_search_path_CXX" | $SED "$delay_single_quote_subst"`'
+
+LTCC='$LTCC'
+LTCFLAGS='$LTCFLAGS'
+compiler='$compiler_DEFAULT'
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+ eval 'cat <<_LTECHO_EOF
+\$1
+_LTECHO_EOF'
+}
+
+# Quote evaled strings.
+for var in SHELL \
+ECHO \
+PATH_SEPARATOR \
+SED \
+GREP \
+EGREP \
+FGREP \
+LD \
+NM \
+LN_S \
+lt_SP2NL \
+lt_NL2SP \
+reload_flag \
+OBJDUMP \
+deplibs_check_method \
+file_magic_cmd \
+file_magic_glob \
+want_nocaseglob \
+DLLTOOL \
+sharedlib_from_linklib_cmd \
+AR \
+AR_FLAGS \
+archiver_list_spec \
+STRIP \
+RANLIB \
+CC \
+CFLAGS \
+compiler \
+lt_cv_sys_global_symbol_pipe \
+lt_cv_sys_global_symbol_to_cdecl \
+lt_cv_sys_global_symbol_to_import \
+lt_cv_sys_global_symbol_to_c_name_address \
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix \
+lt_cv_nm_interface \
+nm_file_list_spec \
+lt_cv_truncate_bin \
+lt_prog_compiler_no_builtin_flag \
+lt_prog_compiler_pic \
+lt_prog_compiler_wl \
+lt_prog_compiler_static \
+lt_cv_prog_compiler_c_o \
+need_locks \
+MANIFEST_TOOL \
+DSYMUTIL \
+NMEDIT \
+LIPO \
+OTOOL \
+OTOOL64 \
+shrext_cmds \
+export_dynamic_flag_spec \
+whole_archive_flag_spec \
+compiler_needs_object \
+with_gnu_ld \
+allow_undefined_flag \
+no_undefined_flag \
+hardcode_libdir_flag_spec \
+hardcode_libdir_separator \
+exclude_expsyms \
+include_expsyms \
+file_list_spec \
+variables_saved_for_relink \
+libname_spec \
+library_names_spec \
+soname_spec \
+install_override_mode \
+finish_eval \
+old_striplib \
+striplib \
+compiler_lib_search_dirs \
+predep_objects \
+postdep_objects \
+predeps \
+postdeps \
+compiler_lib_search_path \
+LD_CXX \
+reload_flag_CXX \
+compiler_CXX \
+lt_prog_compiler_no_builtin_flag_CXX \
+lt_prog_compiler_pic_CXX \
+lt_prog_compiler_wl_CXX \
+lt_prog_compiler_static_CXX \
+lt_cv_prog_compiler_c_o_CXX \
+export_dynamic_flag_spec_CXX \
+whole_archive_flag_spec_CXX \
+compiler_needs_object_CXX \
+with_gnu_ld_CXX \
+allow_undefined_flag_CXX \
+no_undefined_flag_CXX \
+hardcode_libdir_flag_spec_CXX \
+hardcode_libdir_separator_CXX \
+exclude_expsyms_CXX \
+include_expsyms_CXX \
+file_list_spec_CXX \
+compiler_lib_search_dirs_CXX \
+predep_objects_CXX \
+postdep_objects_CXX \
+predeps_CXX \
+postdeps_CXX \
+compiler_lib_search_path_CXX; do
+ case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+ *[\\\\\\\`\\"\\\$]*)
+ eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
+ ;;
+ *)
+ eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+ ;;
+ esac
+done
+
+# Double-quote double-evaled strings.
+for var in reload_cmds \
+old_postinstall_cmds \
+old_postuninstall_cmds \
+old_archive_cmds \
+extract_expsyms_cmds \
+old_archive_from_new_cmds \
+old_archive_from_expsyms_cmds \
+archive_cmds \
+archive_expsym_cmds \
+module_cmds \
+module_expsym_cmds \
+export_symbols_cmds \
+prelink_cmds \
+postlink_cmds \
+postinstall_cmds \
+postuninstall_cmds \
+finish_cmds \
+sys_lib_search_path_spec \
+configure_time_dlsearch_path \
+configure_time_lt_sys_library_path \
+reload_cmds_CXX \
+old_archive_cmds_CXX \
+old_archive_from_new_cmds_CXX \
+old_archive_from_expsyms_cmds_CXX \
+archive_cmds_CXX \
+archive_expsym_cmds_CXX \
+module_cmds_CXX \
+module_expsym_cmds_CXX \
+export_symbols_cmds_CXX \
+prelink_cmds_CXX \
+postlink_cmds_CXX; do
+ case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+ *[\\\\\\\`\\"\\\$]*)
+ eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
+ ;;
+ *)
+ eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+ ;;
+ esac
+done
+
+ac_aux_dir='$ac_aux_dir'
+
+# See if we are running on zsh, and set the options that allow our
+# commands through without removal of \ escapes INIT.
+if test -n "\${ZSH_VERSION+set}"; then
+ setopt NO_GLOB_SUBST
+fi
+
+
+ PACKAGE='$PACKAGE'
+ VERSION='$VERSION'
+ RM='$RM'
+ ofile='$ofile'
+
+
+
+
+
+
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+
+# Handling of arguments.
+for ac_config_target in $ac_config_targets
+do
+ case $ac_config_target in
+ "depfiles") CONFIG_COMMANDS="$CONFIG_COMMANDS depfiles" ;;
+ "libtool") CONFIG_COMMANDS="$CONFIG_COMMANDS libtool" ;;
+ "config.h") CONFIG_HEADERS="$CONFIG_HEADERS config.h" ;;
+ "podwrapper.pl") CONFIG_FILES="$CONFIG_FILES podwrapper.pl" ;;
+ "Makefile") CONFIG_FILES="$CONFIG_FILES Makefile" ;;
+ "bash/Makefile") CONFIG_FILES="$CONFIG_FILES bash/Makefile" ;;
+ "common/bitmap/Makefile") CONFIG_FILES="$CONFIG_FILES common/bitmap/Makefile" ;;
+ "common/gpt/Makefile") CONFIG_FILES="$CONFIG_FILES common/gpt/Makefile" ;;
+ "common/include/Makefile") CONFIG_FILES="$CONFIG_FILES common/include/Makefile" ;;
+ "common/protocol/Makefile") CONFIG_FILES="$CONFIG_FILES common/protocol/Makefile" ;;
+ "common/regions/Makefile") CONFIG_FILES="$CONFIG_FILES common/regions/Makefile" ;;
+ "common/sparse/Makefile") CONFIG_FILES="$CONFIG_FILES common/sparse/Makefile" ;;
+ "common/utils/Makefile") CONFIG_FILES="$CONFIG_FILES common/utils/Makefile" ;;
+ "docs/Makefile") CONFIG_FILES="$CONFIG_FILES docs/Makefile" ;;
+ "include/Makefile") CONFIG_FILES="$CONFIG_FILES include/Makefile" ;;
+ "plugins/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/Makefile" ;;
+ "plugins/curl/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/curl/Makefile" ;;
+ "plugins/data/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/data/Makefile" ;;
+ "plugins/example1/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/example1/Makefile" ;;
+ "plugins/example2/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/example2/Makefile" ;;
+ "plugins/example3/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/example3/Makefile" ;;
+ "plugins/example4/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/example4/Makefile" ;;
+ "plugins/ext2/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/ext2/Makefile" ;;
+ "plugins/file/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/file/Makefile" ;;
+ "plugins/floppy/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/floppy/Makefile" ;;
+ "plugins/full/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/full/Makefile" ;;
+ "plugins/guestfs/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/guestfs/Makefile" ;;
+ "plugins/gzip/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/gzip/Makefile" ;;
+ "plugins/iso/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/iso/Makefile" ;;
+ "plugins/libvirt/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/libvirt/Makefile" ;;
+ "plugins/linuxdisk/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/linuxdisk/Makefile" ;;
+ "plugins/lua/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/lua/Makefile" ;;
+ "plugins/memory/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/memory/Makefile" ;;
+ "plugins/nbd/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/nbd/Makefile" ;;
+ "plugins/null/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/null/Makefile" ;;
+ "plugins/ocaml/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/ocaml/Makefile" ;;
+ "plugins/partitioning/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/partitioning/Makefile" ;;
+ "plugins/pattern/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/pattern/Makefile" ;;
+ "plugins/perl/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/perl/Makefile" ;;
+ "plugins/python/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/python/Makefile" ;;
+ "plugins/random/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/random/Makefile" ;;
+ "plugins/ruby/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/ruby/Makefile" ;;
+ "plugins/rust/Cargo.toml") CONFIG_FILES="$CONFIG_FILES plugins/rust/Cargo.toml" ;;
+ "plugins/rust/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/rust/Makefile" ;;
+ "plugins/sh/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/sh/Makefile" ;;
+ "plugins/ssh/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/ssh/Makefile" ;;
+ "plugins/split/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/split/Makefile" ;;
+ "plugins/streaming/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/streaming/Makefile" ;;
+ "plugins/tar/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/tar/Makefile" ;;
+ "plugins/tcl/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/tcl/Makefile" ;;
+ "plugins/vddk/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/vddk/Makefile" ;;
+ "plugins/zero/Makefile") CONFIG_FILES="$CONFIG_FILES plugins/zero/Makefile" ;;
+ "filters/Makefile") CONFIG_FILES="$CONFIG_FILES filters/Makefile" ;;
+ "filters/blocksize/Makefile") CONFIG_FILES="$CONFIG_FILES filters/blocksize/Makefile" ;;
+ "filters/cache/Makefile") CONFIG_FILES="$CONFIG_FILES filters/cache/Makefile" ;;
+ "filters/cow/Makefile") CONFIG_FILES="$CONFIG_FILES filters/cow/Makefile" ;;
+ "filters/delay/Makefile") CONFIG_FILES="$CONFIG_FILES filters/delay/Makefile" ;;
+ "filters/error/Makefile") CONFIG_FILES="$CONFIG_FILES filters/error/Makefile" ;;
+ "filters/fua/Makefile") CONFIG_FILES="$CONFIG_FILES filters/fua/Makefile" ;;
+ "filters/log/Makefile") CONFIG_FILES="$CONFIG_FILES filters/log/Makefile" ;;
+ "filters/noextents/Makefile") CONFIG_FILES="$CONFIG_FILES filters/noextents/Makefile" ;;
+ "filters/nozero/Makefile") CONFIG_FILES="$CONFIG_FILES filters/nozero/Makefile" ;;
+ "filters/offset/Makefile") CONFIG_FILES="$CONFIG_FILES filters/offset/Makefile" ;;
+ "filters/partition/Makefile") CONFIG_FILES="$CONFIG_FILES filters/partition/Makefile" ;;
+ "filters/rate/Makefile") CONFIG_FILES="$CONFIG_FILES filters/rate/Makefile" ;;
+ "filters/readahead/Makefile") CONFIG_FILES="$CONFIG_FILES filters/readahead/Makefile" ;;
+ "filters/truncate/Makefile") CONFIG_FILES="$CONFIG_FILES filters/truncate/Makefile" ;;
+ "filters/xz/Makefile") CONFIG_FILES="$CONFIG_FILES filters/xz/Makefile" ;;
+ "fuzzing/Makefile") CONFIG_FILES="$CONFIG_FILES fuzzing/Makefile" ;;
+ "server/Makefile") CONFIG_FILES="$CONFIG_FILES server/Makefile" ;;
+ "server/nbdkit.pc") CONFIG_FILES="$CONFIG_FILES server/nbdkit.pc" ;;
+ "tests/functions.sh") CONFIG_FILES="$CONFIG_FILES tests/functions.sh" ;;
+ "tests/Makefile") CONFIG_FILES="$CONFIG_FILES tests/Makefile" ;;
+ "valgrind/Makefile") CONFIG_FILES="$CONFIG_FILES valgrind/Makefile" ;;
+
+ *) as_fn_error $? "invalid argument: \`$ac_config_target'" "$LINENO" 5;;
+ esac
+done
+
+
+# If the user did not use the arguments to specify the items to instantiate,
+# then the envvar interface is used. Set only those that are not.
+# We use the long form for the default assignment because of an extremely
+# bizarre bug on SunOS 4.1.3.
+if $ac_need_defaults; then
+ test "${CONFIG_FILES+set}" = set || CONFIG_FILES=$config_files
+ test "${CONFIG_HEADERS+set}" = set || CONFIG_HEADERS=$config_headers
+ test "${CONFIG_COMMANDS+set}" = set || CONFIG_COMMANDS=$config_commands
+fi
+
+# Have a temporary directory for convenience. Make it in the build tree
+# simply because there is no reason against having it here, and in addition,
+# creating and moving files from /tmp can sometimes cause problems.
+# Hook for its removal unless debugging.
+# Note that there is a small window in which the directory will not be cleaned:
+# after its creation but before its name has been assigned to `$tmp'.
+$debug ||
+{
+ tmp= ac_tmp=
+ trap 'exit_status=$?
+ : "${ac_tmp:=$tmp}"
+ { test ! -d "$ac_tmp" || rm -fr "$ac_tmp"; } && exit $exit_status
+' 0
+ trap 'as_fn_exit 1' 1 2 13 15
+}
+# Create a (secure) tmp directory for tmp files.
+
+{
+ tmp=`(umask 077 && mktemp -d "./confXXXXXX") 2>/dev/null` &&
+ test -d "$tmp"
+} ||
+{
+ tmp=./conf$$-$RANDOM
+ (umask 077 && mkdir "$tmp")
+} || as_fn_error $? "cannot create a temporary directory in ." "$LINENO" 5
+ac_tmp=$tmp
+
+# Set up the scripts for CONFIG_FILES section.
+# No need to generate them if there are no CONFIG_FILES.
+# This happens for instance with `./config.status config.h'.
+if test -n "$CONFIG_FILES"; then
+
+
+ac_cr=`echo X | tr X '\015'`
+# On cygwin, bash can eat \r inside `` if the user requested igncr.
+# But we know of no other shell where ac_cr would be empty at this
+# point, so we can use a bashism as a fallback.
+if test "x$ac_cr" = x; then
+ eval ac_cr=\$\'\\r\'
+fi
+ac_cs_awk_cr=`$AWK 'BEGIN { print "a\rb" }' </dev/null 2>/dev/null`
+if test "$ac_cs_awk_cr" = "a${ac_cr}b"; then
+ ac_cs_awk_cr='\\r'
+else
+ ac_cs_awk_cr=$ac_cr
+fi
+
+echo 'BEGIN {' >"$ac_tmp/subs1.awk" &&
+_ACEOF
+
+
+{
+ echo "cat >conf$$subs.awk <<_ACEOF" &&
+ echo "$ac_subst_vars" | sed 's/.*/&!$&$ac_delim/' &&
+ echo "_ACEOF"
+} >conf$$subs.sh ||
+ as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+ac_delim_num=`echo "$ac_subst_vars" | grep -c '^'`
+ac_delim='%!_!# '
+for ac_last_try in false false false false false :; do
+ . ./conf$$subs.sh ||
+ as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+
+ ac_delim_n=`sed -n "s/.*$ac_delim\$/X/p" conf$$subs.awk | grep -c X`
+ if test $ac_delim_n = $ac_delim_num; then
+ break
+ elif $ac_last_try; then
+ as_fn_error $? "could not make $CONFIG_STATUS" "$LINENO" 5
+ else
+ ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+ fi
+done
+rm -f conf$$subs.sh
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+cat >>"\$ac_tmp/subs1.awk" <<\\_ACAWK &&
+_ACEOF
+sed -n '
+h
+s/^/S["/; s/!.*/"]=/
+p
+g
+s/^[^!]*!//
+:repl
+t repl
+s/'"$ac_delim"'$//
+t delim
+:nl
+h
+s/\(.\{148\}\)..*/\1/
+t more1
+s/["\\]/\\&/g; s/^/"/; s/$/\\n"\\/
+p
+n
+b repl
+:more1
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t nl
+:delim
+h
+s/\(.\{148\}\)..*/\1/
+t more2
+s/["\\]/\\&/g; s/^/"/; s/$/"/
+p
+b
+:more2
+s/["\\]/\\&/g; s/^/"/; s/$/"\\/
+p
+g
+s/.\{148\}//
+t delim
+' <conf$$subs.awk | sed '
+/^[^""]/{
+ N
+ s/\n//
+}
+' >>$CONFIG_STATUS || ac_write_fail=1
+rm -f conf$$subs.awk
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+_ACAWK
+cat >>"\$ac_tmp/subs1.awk" <<_ACAWK &&
+ for (key in S) S_is_set[key] = 1
+ FS = "\a"
+
+}
+{
+ line = $ 0
+ nfields = split(line, field, "@")
+ substed = 0
+ len = length(field[1])
+ for (i = 2; i < nfields; i++) {
+ key = field[i]
+ keylen = length(key)
+ if (S_is_set[key]) {
+ value = S[key]
+ line = substr(line, 1, len) "" value "" substr(line, len + keylen + 3)
+ len += length(value) + length(field[++i])
+ substed = 1
+ } else
+ len += 1 + keylen
+ }
+
+ print line
+}
+
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+if sed "s/$ac_cr//" < /dev/null > /dev/null 2>&1; then
+ sed "s/$ac_cr\$//; s/$ac_cr/$ac_cs_awk_cr/g"
+else
+ cat
+fi < "$ac_tmp/subs1.awk" > "$ac_tmp/subs.awk" \
+ || as_fn_error $? "could not setup config files machinery" "$LINENO" 5
+_ACEOF
+
+# VPATH may cause trouble with some makes, so we remove sole $(srcdir),
+# ${srcdir} and @srcdir@ entries from VPATH if srcdir is ".", strip leading and
+# trailing colons and then remove the whole line if VPATH becomes empty
+# (actually we leave an empty line to preserve line numbers).
+if test "x$srcdir" = x.; then
+ ac_vpsub='/^[ ]*VPATH[ ]*=[ ]*/{
+h
+s///
+s/^/:/
+s/[ ]*$/:/
+s/:\$(srcdir):/:/g
+s/:\${srcdir}:/:/g
+s/:@srcdir@:/:/g
+s/^:*//
+s/:*$//
+x
+s/\(=[ ]*\).*/\1/
+G
+s/\n//
+s/^[^=]*=[ ]*$//
+}'
+fi
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+fi # test -n "$CONFIG_FILES"
+
+# Set up the scripts for CONFIG_HEADERS section.
+# No need to generate them if there are no CONFIG_HEADERS.
+# This happens for instance with `./config.status Makefile'.
+if test -n "$CONFIG_HEADERS"; then
+cat >"$ac_tmp/defines.awk" <<\_ACAWK ||
+BEGIN {
+_ACEOF
+
+# Transform confdefs.h into an awk script `defines.awk', embedded as
+# here-document in config.status, that substitutes the proper values into
+# config.h.in to produce config.h.
+
+# Create a delimiter string that does not exist in confdefs.h, to ease
+# handling of long lines.
+ac_delim='%!_!# '
+for ac_last_try in false false :; do
+ ac_tt=`sed -n "/$ac_delim/p" confdefs.h`
+ if test -z "$ac_tt"; then
+ break
+ elif $ac_last_try; then
+ as_fn_error $? "could not make $CONFIG_HEADERS" "$LINENO" 5
+ else
+ ac_delim="$ac_delim!$ac_delim _$ac_delim!! "
+ fi
+done
+
+# For the awk script, D is an array of macro values keyed by name,
+# likewise P contains macro parameters if any. Preserve backslash
+# newline sequences.
+
+ac_word_re=[_$as_cr_Letters][_$as_cr_alnum]*
+sed -n '
+s/.\{148\}/&'"$ac_delim"'/g
+t rset
+:rset
+s/^[ ]*#[ ]*define[ ][ ]*/ /
+t def
+d
+:def
+s/\\$//
+t bsnl
+s/["\\]/\\&/g
+s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\
+D["\1"]=" \3"/p
+s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2"/p
+d
+:bsnl
+s/["\\]/\\&/g
+s/^ \('"$ac_word_re"'\)\(([^()]*)\)[ ]*\(.*\)/P["\1"]="\2"\
+D["\1"]=" \3\\\\\\n"\\/p
+t cont
+s/^ \('"$ac_word_re"'\)[ ]*\(.*\)/D["\1"]=" \2\\\\\\n"\\/p
+t cont
+d
+:cont
+n
+s/.\{148\}/&'"$ac_delim"'/g
+t clear
+:clear
+s/\\$//
+t bsnlc
+s/["\\]/\\&/g; s/^/"/; s/$/"/p
+d
+:bsnlc
+s/["\\]/\\&/g; s/^/"/; s/$/\\\\\\n"\\/p
+b cont
+' <confdefs.h | sed '
+s/'"$ac_delim"'/"\\\
+"/g' >>$CONFIG_STATUS || ac_write_fail=1
+
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ for (key in D) D_is_set[key] = 1
+ FS = "\a"
+}
+/^[\t ]*#[\t ]*(define|undef)[\t ]+$ac_word_re([\t (]|\$)/ {
+ line = \$ 0
+ split(line, arg, " ")
+ if (arg[1] == "#") {
+ defundef = arg[2]
+ mac1 = arg[3]
+ } else {
+ defundef = substr(arg[1], 2)
+ mac1 = arg[2]
+ }
+ split(mac1, mac2, "(") #)
+ macro = mac2[1]
+ prefix = substr(line, 1, index(line, defundef) - 1)
+ if (D_is_set[macro]) {
+ # Preserve the white space surrounding the "#".
+ print prefix "define", macro P[macro] D[macro]
+ next
+ } else {
+ # Replace #undef with comments. This is necessary, for example,
+ # in the case of _POSIX_SOURCE, which is predefined and required
+ # on some systems where configure will not decide to define it.
+ if (defundef == "undef") {
+ print "/*", prefix defundef, macro, "*/"
+ next
+ }
+ }
+}
+{ print }
+_ACAWK
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+ as_fn_error $? "could not setup config headers machinery" "$LINENO" 5
+fi # test -n "$CONFIG_HEADERS"
+
+
+eval set X " :F $CONFIG_FILES :H $CONFIG_HEADERS :C $CONFIG_COMMANDS"
+shift
+for ac_tag
+do
+ case $ac_tag in
+ :[FHLC]) ac_mode=$ac_tag; continue;;
+ esac
+ case $ac_mode$ac_tag in
+ :[FHL]*:*);;
+ :L* | :C*:*) as_fn_error $? "invalid tag \`$ac_tag'" "$LINENO" 5;;
+ :[FH]-) ac_tag=-:-;;
+ :[FH]*) ac_tag=$ac_tag:$ac_tag.in;;
+ esac
+ ac_save_IFS=$IFS
+ IFS=:
+ set x $ac_tag
+ IFS=$ac_save_IFS
+ shift
+ ac_file=$1
+ shift
+
+ case $ac_mode in
+ :L) ac_source=$1;;
+ :[FH])
+ ac_file_inputs=
+ for ac_f
+ do
+ case $ac_f in
+ -) ac_f="$ac_tmp/stdin";;
+ *) # Look for the file first in the build tree, then in the source tree
+ # (if the path is not absolute). The absolute path cannot be DOS-style,
+ # because $ac_f cannot contain `:'.
+ test -f "$ac_f" ||
+ case $ac_f in
+ [\\/$]*) false;;
+ *) test -f "$srcdir/$ac_f" && ac_f="$srcdir/$ac_f";;
+ esac ||
+ as_fn_error 1 "cannot find input file: \`$ac_f'" "$LINENO" 5;;
+ esac
+ case $ac_f in *\'*) ac_f=`$as_echo "$ac_f" | sed "s/'/'\\\\\\\\''/g"`;; esac
+ as_fn_append ac_file_inputs " '$ac_f'"
+ done
+
+ # Let's still pretend it is `configure' which instantiates (i.e., don't
+ # use $as_me), people would be surprised to read:
+ # /* config.h. Generated by config.status. */
+ configure_input='Generated from '`
+ $as_echo "$*" | sed 's|^[^:]*/||;s|:[^:]*/|, |g'
+ `' by configure.'
+ if test x"$ac_file" != x-; then
+ configure_input="$ac_file. $configure_input"
+ { $as_echo "$as_me:${as_lineno-$LINENO}: creating $ac_file" >&5
+$as_echo "$as_me: creating $ac_file" >&6;}
+ fi
+ # Neutralize special characters interpreted by sed in replacement strings.
+ case $configure_input in #(
+ *\&* | *\|* | *\\* )
+ ac_sed_conf_input=`$as_echo "$configure_input" |
+ sed 's/[\\\\&|]/\\\\&/g'`;; #(
+ *) ac_sed_conf_input=$configure_input;;
+ esac
+
+ case $ac_tag in
+ *:-:* | *:-) cat >"$ac_tmp/stdin" \
+ || as_fn_error $? "could not create $ac_file" "$LINENO" 5 ;;
+ esac
+ ;;
+ esac
+
+ ac_dir=`$as_dirname -- "$ac_file" ||
+$as_expr X"$ac_file" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$ac_file" : 'X\(//\)[^/]' \| \
+ X"$ac_file" : 'X\(//\)$' \| \
+ X"$ac_file" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$ac_file" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+ s//\1/
+ q
+ }
+ /^X\(\/\/\)[^/].*/{
+ s//\1/
+ q
+ }
+ /^X\(\/\/\)$/{
+ s//\1/
+ q
+ }
+ /^X\(\/\).*/{
+ s//\1/
+ q
+ }
+ s/.*/./; q'`
+ as_dir="$ac_dir"; as_fn_mkdir_p
+ ac_builddir=.
+
+case "$ac_dir" in
+.) ac_dir_suffix= ac_top_builddir_sub=. ac_top_build_prefix= ;;
+*)
+ ac_dir_suffix=/`$as_echo "$ac_dir" | sed 's|^\.[\\/]||'`
+ # A ".." for each directory in $ac_dir_suffix.
+ ac_top_builddir_sub=`$as_echo "$ac_dir_suffix" | sed 's|/[^\\/]*|/..|g;s|/||'`
+ case $ac_top_builddir_sub in
+ "") ac_top_builddir_sub=. ac_top_build_prefix= ;;
+ *) ac_top_build_prefix=$ac_top_builddir_sub/ ;;
+ esac ;;
+esac
+ac_abs_top_builddir=$ac_pwd
+ac_abs_builddir=$ac_pwd$ac_dir_suffix
+# for backward compatibility:
+ac_top_builddir=$ac_top_build_prefix
+
+case $srcdir in
+ .) # We are building in place.
+ ac_srcdir=.
+ ac_top_srcdir=$ac_top_builddir_sub
+ ac_abs_top_srcdir=$ac_pwd ;;
+ [\\/]* | ?:[\\/]* ) # Absolute name.
+ ac_srcdir=$srcdir$ac_dir_suffix;
+ ac_top_srcdir=$srcdir
+ ac_abs_top_srcdir=$srcdir ;;
+ *) # Relative name.
+ ac_srcdir=$ac_top_build_prefix$srcdir$ac_dir_suffix
+ ac_top_srcdir=$ac_top_build_prefix$srcdir
+ ac_abs_top_srcdir=$ac_pwd/$srcdir ;;
+esac
+ac_abs_srcdir=$ac_abs_top_srcdir$ac_dir_suffix
+
+
+ case $ac_mode in
+ :F)
+ #
+ # CONFIG_FILE
+ #
+
+ case $INSTALL in
+ [\\/$]* | ?:[\\/]* ) ac_INSTALL=$INSTALL ;;
+ *) ac_INSTALL=$ac_top_build_prefix$INSTALL ;;
+ esac
+ ac_MKDIR_P=$MKDIR_P
+ case $MKDIR_P in
+ [\\/$]* | ?:[\\/]* ) ;;
+ */*) ac_MKDIR_P=$ac_top_build_prefix$MKDIR_P ;;
+ esac
+_ACEOF
+
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+# If the template does not know about datarootdir, expand it.
+# FIXME: This hack should be removed a few years after 2.60.
+ac_datarootdir_hack=; ac_datarootdir_seen=
+ac_sed_dataroot='
+/datarootdir/ {
+ p
+ q
+}
+/@datadir@/p
+/@docdir@/p
+/@infodir@/p
+/@localedir@/p
+/@mandir@/p'
+case `eval "sed -n \"\$ac_sed_dataroot\" $ac_file_inputs"` in
+*datarootdir*) ac_datarootdir_seen=yes;;
+*@datadir@*|*@docdir@*|*@infodir@*|*@localedir@*|*@mandir@*)
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&5
+$as_echo "$as_me: WARNING: $ac_file_inputs seems to ignore the --datarootdir setting" >&2;}
+_ACEOF
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ ac_datarootdir_hack='
+ s&@datadir@&$datadir&g
+ s&@docdir@&$docdir&g
+ s&@infodir@&$infodir&g
+ s&@localedir@&$localedir&g
+ s&@mandir@&$mandir&g
+ s&\\\${datarootdir}&$datarootdir&g' ;;
+esac
+_ACEOF
+
+# Neutralize VPATH when `$srcdir' = `.'.
+# Shell code in configure.ac might set extrasub.
+# FIXME: do we really want to maintain this feature?
+cat >>$CONFIG_STATUS <<_ACEOF || ac_write_fail=1
+ac_sed_extra="$ac_vpsub
+$extrasub
+_ACEOF
+cat >>$CONFIG_STATUS <<\_ACEOF || ac_write_fail=1
+:t
+/@[a-zA-Z_][a-zA-Z_0-9]*@/!b
+s|@configure_input@|$ac_sed_conf_input|;t t
+s&@top_builddir@&$ac_top_builddir_sub&;t t
+s&@top_build_prefix@&$ac_top_build_prefix&;t t
+s&@srcdir@&$ac_srcdir&;t t
+s&@abs_srcdir@&$ac_abs_srcdir&;t t
+s&@top_srcdir@&$ac_top_srcdir&;t t
+s&@abs_top_srcdir@&$ac_abs_top_srcdir&;t t
+s&@builddir@&$ac_builddir&;t t
+s&@abs_builddir@&$ac_abs_builddir&;t t
+s&@abs_top_builddir@&$ac_abs_top_builddir&;t t
+s&@INSTALL@&$ac_INSTALL&;t t
+s&@MKDIR_P@&$ac_MKDIR_P&;t t
+$ac_datarootdir_hack
+"
+eval sed \"\$ac_sed_extra\" "$ac_file_inputs" | $AWK -f "$ac_tmp/subs.awk" \
+ >$ac_tmp/out || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+
+test -z "$ac_datarootdir_hack$ac_datarootdir_seen" &&
+ { ac_out=`sed -n '/\${datarootdir}/p' "$ac_tmp/out"`; test -n "$ac_out"; } &&
+ { ac_out=`sed -n '/^[ ]*datarootdir[ ]*:*=/p' \
+ "$ac_tmp/out"`; test -z "$ac_out"; } &&
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined. Please make sure it is defined" >&5
+$as_echo "$as_me: WARNING: $ac_file contains a reference to the variable \`datarootdir'
+which seems to be undefined. Please make sure it is defined" >&2;}
+
+ rm -f "$ac_tmp/stdin"
+ case $ac_file in
+ -) cat "$ac_tmp/out" && rm -f "$ac_tmp/out";;
+ *) rm -f "$ac_file" && mv "$ac_tmp/out" "$ac_file";;
+ esac \
+ || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+ ;;
+ :H)
+ #
+ # CONFIG_HEADER
+ #
+ if test x"$ac_file" != x-; then
+ {
+ $as_echo "/* $configure_input */" \
+ && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs"
+ } >"$ac_tmp/config.h" \
+ || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+ if diff "$ac_file" "$ac_tmp/config.h" >/dev/null 2>&1; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: $ac_file is unchanged" >&5
+$as_echo "$as_me: $ac_file is unchanged" >&6;}
+ else
+ rm -f "$ac_file"
+ mv "$ac_tmp/config.h" "$ac_file" \
+ || as_fn_error $? "could not create $ac_file" "$LINENO" 5
+ fi
+ else
+ $as_echo "/* $configure_input */" \
+ && eval '$AWK -f "$ac_tmp/defines.awk"' "$ac_file_inputs" \
+ || as_fn_error $? "could not create -" "$LINENO" 5
+ fi
+# Compute "$ac_file"'s index in $config_headers.
+_am_arg="$ac_file"
+_am_stamp_count=1
+for _am_header in $config_headers :; do
+ case $_am_header in
+ $_am_arg | $_am_arg:* )
+ break ;;
+ * )
+ _am_stamp_count=`expr $_am_stamp_count + 1` ;;
+ esac
+done
+echo "timestamp for $_am_arg" >`$as_dirname -- "$_am_arg" ||
+$as_expr X"$_am_arg" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$_am_arg" : 'X\(//\)[^/]' \| \
+ X"$_am_arg" : 'X\(//\)$' \| \
+ X"$_am_arg" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$_am_arg" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+ s//\1/
+ q
+ }
+ /^X\(\/\/\)[^/].*/{
+ s//\1/
+ q
+ }
+ /^X\(\/\/\)$/{
+ s//\1/
+ q
+ }
+ /^X\(\/\).*/{
+ s//\1/
+ q
+ }
+ s/.*/./; q'`/stamp-h$_am_stamp_count
+ ;;
+
+ :C) { $as_echo "$as_me:${as_lineno-$LINENO}: executing $ac_file commands" >&5
+$as_echo "$as_me: executing $ac_file commands" >&6;}
+ ;;
+ esac
+
+
+ case $ac_file$ac_mode in
+ "depfiles":C) test x"$AMDEP_TRUE" != x"" || {
+ # Older Autoconf quotes --file arguments for eval, but not when files
+ # are listed without --file. Let's play safe and only enable the eval
+ # if we detect the quoting.
+ # TODO: see whether this extra hack can be removed once we start
+ # requiring Autoconf 2.70 or later.
+ case $CONFIG_FILES in #(
+ *\'*) :
+ eval set x "$CONFIG_FILES" ;; #(
+ *) :
+ set x $CONFIG_FILES ;; #(
+ *) :
+ ;;
+esac
+ shift
+ # Used to flag and report bootstrapping failures.
+ am_rc=0
+ for am_mf
+ do
+ # Strip MF so we end up with the name of the file.
+ am_mf=`$as_echo "$am_mf" | sed -e 's/:.*$//'`
+ # Check whether this is an Automake generated Makefile which includes
+ # dependency-tracking related rules and includes.
+ # Grep'ing the whole file directly is not great: AIX grep has a line
+ # limit of 2048, but all sed's we know have understand at least 4000.
+ sed -n 's,^am--depfiles:.*,X,p' "$am_mf" | grep X >/dev/null 2>&1 \
+ || continue
+ am_dirpart=`$as_dirname -- "$am_mf" ||
+$as_expr X"$am_mf" : 'X\(.*[^/]\)//*[^/][^/]*/*$' \| \
+ X"$am_mf" : 'X\(//\)[^/]' \| \
+ X"$am_mf" : 'X\(//\)$' \| \
+ X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X"$am_mf" |
+ sed '/^X\(.*[^/]\)\/\/*[^/][^/]*\/*$/{
+ s//\1/
+ q
+ }
+ /^X\(\/\/\)[^/].*/{
+ s//\1/
+ q
+ }
+ /^X\(\/\/\)$/{
+ s//\1/
+ q
+ }
+ /^X\(\/\).*/{
+ s//\1/
+ q
+ }
+ s/.*/./; q'`
+ am_filepart=`$as_basename -- "$am_mf" ||
+$as_expr X/"$am_mf" : '.*/\([^/][^/]*\)/*$' \| \
+ X"$am_mf" : 'X\(//\)$' \| \
+ X"$am_mf" : 'X\(/\)' \| . 2>/dev/null ||
+$as_echo X/"$am_mf" |
+ sed '/^.*\/\([^/][^/]*\)\/*$/{
+ s//\1/
+ q
+ }
+ /^X\/\(\/\/\)$/{
+ s//\1/
+ q
+ }
+ /^X\/\(\/\).*/{
+ s//\1/
+ q
+ }
+ s/.*/./; q'`
+ { echo "$as_me:$LINENO: cd "$am_dirpart" \
+ && sed -e '/# am--include-marker/d' "$am_filepart" \
+ | $MAKE -f - am--depfiles" >&5
+ (cd "$am_dirpart" \
+ && sed -e '/# am--include-marker/d' "$am_filepart" \
+ | $MAKE -f - am--depfiles) >&5 2>&5
+ ac_status=$?
+ echo "$as_me:$LINENO: \$? = $ac_status" >&5
+ (exit $ac_status); } || am_rc=$?
+ done
+ if test $am_rc -ne 0; then
+ { { $as_echo "$as_me:${as_lineno-$LINENO}: error: in \`$ac_pwd':" >&5
+$as_echo "$as_me: error: in \`$ac_pwd':" >&2;}
+as_fn_error $? "Something went wrong bootstrapping makefile fragments
+ for automatic dependency tracking. Try re-running configure with the
+ '--disable-dependency-tracking' option to at least be able to build
+ the package (albeit without support for automatic dependency tracking).
+See \`config.log' for more details" "$LINENO" 5; }
+ fi
+ { am_dirpart=; unset am_dirpart;}
+ { am_filepart=; unset am_filepart;}
+ { am_mf=; unset am_mf;}
+ { am_rc=; unset am_rc;}
+ rm -f conftest-deps.mk
+}
+ ;;
+ "libtool":C)
+
+ # See if we are running on zsh, and set the options that allow our
+ # commands through without removal of \ escapes.
+ if test -n "${ZSH_VERSION+set}"; then
+ setopt NO_GLOB_SUBST
+ fi
+
+ cfgfile=${ofile}T
+ trap "$RM \"$cfgfile\"; exit 1" 1 2 15
+ $RM "$cfgfile"
+
+ cat <<_LT_EOF >> "$cfgfile"
+#! $SHELL
+# Generated automatically by $as_me ($PACKAGE) $VERSION
+# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+# NOTE: Changes made to this file will be lost: look at ltmain.sh.
+
+# Provide generalized library-building support services.
+# Written by Gordon Matzigkeit, 1996
+
+# Copyright (C) 2014 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions. There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# GNU Libtool is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of of the License, or
+# (at your option) any later version.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program or library that is built
+# using GNU Libtool, you may include this file under the same
+# distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+# The names of the tagged configurations supported by this script.
+available_tags='CXX '
+
+# Configured defaults for sys_lib_dlsearch_path munging.
+: \${LT_SYS_LIBRARY_PATH="$configure_time_lt_sys_library_path"}
+
+# ### BEGIN LIBTOOL CONFIG
+
+# Which release of libtool.m4 was used?
+macro_version=$macro_version
+macro_revision=$macro_revision
+
+# Whether or not to build shared libraries.
+build_libtool_libs=$enable_shared
+
+# Whether or not to build static libraries.
+build_old_libs=$enable_static
+
+# What type of objects to build.
+pic_mode=$pic_mode
+
+# Whether or not to optimize for fast installation.
+fast_install=$enable_fast_install
+
+# Shared archive member basename,for filename based shared library versioning on AIX.
+shared_archive_member_spec=$shared_archive_member_spec
+
+# Shell to use when invoking shell scripts.
+SHELL=$lt_SHELL
+
+# An echo program that protects backslashes.
+ECHO=$lt_ECHO
+
+# The PATH separator for the build system.
+PATH_SEPARATOR=$lt_PATH_SEPARATOR
+
+# The host system.
+host_alias=$host_alias
+host=$host
+host_os=$host_os
+
+# The build system.
+build_alias=$build_alias
+build=$build
+build_os=$build_os
+
+# A sed program that does not truncate output.
+SED=$lt_SED
+
+# Sed that helps us avoid accidentally triggering echo(1) options like -n.
+Xsed="\$SED -e 1s/^X//"
+
+# A grep program that handles long lines.
+GREP=$lt_GREP
+
+# An ERE matcher.
+EGREP=$lt_EGREP
+
+# A literal string matcher.
+FGREP=$lt_FGREP
+
+# A BSD- or MS-compatible name lister.
+NM=$lt_NM
+
+# Whether we need soft or hard links.
+LN_S=$lt_LN_S
+
+# What is the maximum length of a command?
+max_cmd_len=$max_cmd_len
+
+# Object file suffix (normally "o").
+objext=$ac_objext
+
+# Executable file suffix (normally "").
+exeext=$exeext
+
+# whether the shell understands "unset".
+lt_unset=$lt_unset
+
+# turn spaces into newlines.
+SP2NL=$lt_lt_SP2NL
+
+# turn newlines into spaces.
+NL2SP=$lt_lt_NL2SP
+
+# convert \$build file names to \$host format.
+to_host_file_cmd=$lt_cv_to_host_file_cmd
+
+# convert \$build files to toolchain format.
+to_tool_file_cmd=$lt_cv_to_tool_file_cmd
+
+# An object symbol dumper.
+OBJDUMP=$lt_OBJDUMP
+
+# Method to check whether dependent libraries are shared objects.
+deplibs_check_method=$lt_deplibs_check_method
+
+# Command to use when deplibs_check_method = "file_magic".
+file_magic_cmd=$lt_file_magic_cmd
+
+# How to find potential files when deplibs_check_method = "file_magic".
+file_magic_glob=$lt_file_magic_glob
+
+# Find potential files using nocaseglob when deplibs_check_method = "file_magic".
+want_nocaseglob=$lt_want_nocaseglob
+
+# DLL creation program.
+DLLTOOL=$lt_DLLTOOL
+
+# Command to associate shared and link libraries.
+sharedlib_from_linklib_cmd=$lt_sharedlib_from_linklib_cmd
+
+# The archiver.
+AR=$lt_AR
+
+# Flags to create an archive.
+AR_FLAGS=$lt_AR_FLAGS
+
+# How to feed a file listing to the archiver.
+archiver_list_spec=$lt_archiver_list_spec
+
+# A symbol stripping program.
+STRIP=$lt_STRIP
+
+# Commands used to install an old-style archive.
+RANLIB=$lt_RANLIB
+old_postinstall_cmds=$lt_old_postinstall_cmds
+old_postuninstall_cmds=$lt_old_postuninstall_cmds
+
+# Whether to use a lock for old archive extraction.
+lock_old_archive_extraction=$lock_old_archive_extraction
+
+# A C compiler.
+LTCC=$lt_CC
+
+# LTCC compiler flags.
+LTCFLAGS=$lt_CFLAGS
+
+# Take the output of nm and produce a listing of raw symbols and C names.
+global_symbol_pipe=$lt_lt_cv_sys_global_symbol_pipe
+
+# Transform the output of nm in a proper C declaration.
+global_symbol_to_cdecl=$lt_lt_cv_sys_global_symbol_to_cdecl
+
+# Transform the output of nm into a list of symbols to manually relocate.
+global_symbol_to_import=$lt_lt_cv_sys_global_symbol_to_import
+
+# Transform the output of nm in a C name address pair.
+global_symbol_to_c_name_address=$lt_lt_cv_sys_global_symbol_to_c_name_address
+
+# Transform the output of nm in a C name address pair when lib prefix is needed.
+global_symbol_to_c_name_address_lib_prefix=$lt_lt_cv_sys_global_symbol_to_c_name_address_lib_prefix
+
+# The name lister interface.
+nm_interface=$lt_lt_cv_nm_interface
+
+# Specify filename containing input files for \$NM.
+nm_file_list_spec=$lt_nm_file_list_spec
+
+# The root where to search for dependent libraries,and where our libraries should be installed.
+lt_sysroot=$lt_sysroot
+
+# Command to truncate a binary pipe.
+lt_truncate_bin=$lt_lt_cv_truncate_bin
+
+# The name of the directory that contains temporary libtool files.
+objdir=$objdir
+
+# Used to examine libraries when file_magic_cmd begins with "file".
+MAGIC_CMD=$MAGIC_CMD
+
+# Must we lock files when doing compilation?
+need_locks=$lt_need_locks
+
+# Manifest tool.
+MANIFEST_TOOL=$lt_MANIFEST_TOOL
+
+# Tool to manipulate archived DWARF debug symbol files on Mac OS X.
+DSYMUTIL=$lt_DSYMUTIL
+
+# Tool to change global to local symbols on Mac OS X.
+NMEDIT=$lt_NMEDIT
+
+# Tool to manipulate fat objects and archives on Mac OS X.
+LIPO=$lt_LIPO
+
+# ldd/readelf like tool for Mach-O binaries on Mac OS X.
+OTOOL=$lt_OTOOL
+
+# ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4.
+OTOOL64=$lt_OTOOL64
+
+# Old archive suffix (normally "a").
+libext=$libext
+
+# Shared library suffix (normally ".so").
+shrext_cmds=$lt_shrext_cmds
+
+# The commands to extract the exported symbol list from a shared archive.
+extract_expsyms_cmds=$lt_extract_expsyms_cmds
+
+# Variables whose values should be saved in libtool wrapper scripts and
+# restored at link time.
+variables_saved_for_relink=$lt_variables_saved_for_relink
+
+# Do we need the "lib" prefix for modules?
+need_lib_prefix=$need_lib_prefix
+
+# Do we need a version for libraries?
+need_version=$need_version
+
+# Library versioning type.
+version_type=$version_type
+
+# Shared library runtime path variable.
+runpath_var=$runpath_var
+
+# Shared library path variable.
+shlibpath_var=$shlibpath_var
+
+# Is shlibpath searched before the hard-coded library search path?
+shlibpath_overrides_runpath=$shlibpath_overrides_runpath
+
+# Format of library name prefix.
+libname_spec=$lt_libname_spec
+
+# List of archive names. First name is the real one, the rest are links.
+# The last name is the one that the linker finds with -lNAME
+library_names_spec=$lt_library_names_spec
+
+# The coded name of the library, if different from the real name.
+soname_spec=$lt_soname_spec
+
+# Permission mode override for installation of shared libraries.
+install_override_mode=$lt_install_override_mode
+
+# Command to use after installation of a shared archive.
+postinstall_cmds=$lt_postinstall_cmds
+
+# Command to use after uninstallation of a shared archive.
+postuninstall_cmds=$lt_postuninstall_cmds
+
+# Commands used to finish a libtool library installation in a directory.
+finish_cmds=$lt_finish_cmds
+
+# As "finish_cmds", except a single script fragment to be evaled but
+# not shown.
+finish_eval=$lt_finish_eval
+
+# Whether we should hardcode library paths into libraries.
+hardcode_into_libs=$hardcode_into_libs
+
+# Compile-time system search path for libraries.
+sys_lib_search_path_spec=$lt_sys_lib_search_path_spec
+
+# Detected run-time system search path for libraries.
+sys_lib_dlsearch_path_spec=$lt_configure_time_dlsearch_path
+
+# Explicit LT_SYS_LIBRARY_PATH set during ./configure time.
+configure_time_lt_sys_library_path=$lt_configure_time_lt_sys_library_path
+
+# Whether dlopen is supported.
+dlopen_support=$enable_dlopen
+
+# Whether dlopen of programs is supported.
+dlopen_self=$enable_dlopen_self
+
+# Whether dlopen of statically linked programs is supported.
+dlopen_self_static=$enable_dlopen_self_static
+
+# Commands to strip libraries.
+old_striplib=$lt_old_striplib
+striplib=$lt_striplib
+
+
+# The linker used to build libraries.
+LD=$lt_LD
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag
+reload_cmds=$lt_reload_cmds
+
+# Commands used to build an old-style archive.
+old_archive_cmds=$lt_old_archive_cmds
+
+# A language specific compiler.
+CC=$lt_compiler
+
+# Is the compiler the GNU compiler?
+with_gcc=$GCC
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc
+
+# Whether or not to disallow shared libs when runtime libs are static.
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec
+
+# Whether the compiler copes with passing no objects directly.
+compiler_needs_object=$lt_compiler_needs_object
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds
+
+# Commands used to build a shared archive.
+archive_cmds=$lt_archive_cmds
+archive_expsym_cmds=$lt_archive_expsym_cmds
+
+# Commands used to build a loadable module if different from building
+# a shared archive.
+module_cmds=$lt_module_cmds
+module_expsym_cmds=$lt_module_expsym_cmds
+
+# Whether we are building with GNU ld or not.
+with_gnu_ld=$lt_with_gnu_ld
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag
+
+# Flag that enforces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec
+
+# Whether we need a single "-rpath" flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator
+
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
+# DIR into the resulting binary.
+hardcode_direct=$hardcode_direct
+
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
+# DIR into the resulting binary and the resulting library dependency is
+# "absolute",i.e impossible to change by setting \$shlibpath_var if the
+# library is relocated.
+hardcode_direct_absolute=$hardcode_direct_absolute
+
+# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+# into the resulting binary.
+hardcode_minus_L=$hardcode_minus_L
+
+# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+# into the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var
+
+# Set to "yes" if building a shared library automatically hardcodes DIR
+# into the library and all subsequent libraries and executables linked
+# against it.
+hardcode_automatic=$hardcode_automatic
+
+# Set to yes if linker adds runtime paths of dependent libraries
+# to runtime path list.
+inherit_rpath=$inherit_rpath
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs
+
+# Set to "yes" if exported symbols are required.
+always_export_symbols=$always_export_symbols
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms
+
+# Commands necessary for linking programs (against libraries) with templates.
+prelink_cmds=$lt_prelink_cmds
+
+# Commands necessary for finishing linking programs.
+postlink_cmds=$lt_postlink_cmds
+
+# Specify filename containing input files.
+file_list_spec=$lt_file_list_spec
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action
+
+# The directories searched by this compiler when creating a shared library.
+compiler_lib_search_dirs=$lt_compiler_lib_search_dirs
+
+# Dependencies to place before and after the objects being linked to
+# create a shared library.
+predep_objects=$lt_predep_objects
+postdep_objects=$lt_postdep_objects
+predeps=$lt_predeps
+postdeps=$lt_postdeps
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_compiler_lib_search_path
+
+# ### END LIBTOOL CONFIG
+
+_LT_EOF
+
+ cat <<'_LT_EOF' >> "$cfgfile"
+
+# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE
+
+# func_munge_path_list VARIABLE PATH
+# -----------------------------------
+# VARIABLE is name of variable containing _space_ separated list of
+# directories to be munged by the contents of PATH, which is string
+# having a format:
+# "DIR[:DIR]:"
+# string "DIR[ DIR]" will be prepended to VARIABLE
+# ":DIR[:DIR]"
+# string "DIR[ DIR]" will be appended to VARIABLE
+# "DIRP[:DIRP]::[DIRA:]DIRA"
+# string "DIRP[ DIRP]" will be prepended to VARIABLE and string
+# "DIRA[ DIRA]" will be appended to VARIABLE
+# "DIR[:DIR]"
+# VARIABLE will be replaced by "DIR[ DIR]"
+func_munge_path_list ()
+{
+ case x$2 in
+ x)
+ ;;
+ *:)
+ eval $1=\"`$ECHO $2 | $SED 's/:/ /g'` \$$1\"
+ ;;
+ x:*)
+ eval $1=\"\$$1 `$ECHO $2 | $SED 's/:/ /g'`\"
+ ;;
+ *::*)
+ eval $1=\"\$$1\ `$ECHO $2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
+ eval $1=\"`$ECHO $2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \$$1\"
+ ;;
+ *)
+ eval $1=\"`$ECHO $2 | $SED 's/:/ /g'`\"
+ ;;
+ esac
+}
+
+
+# Calculate cc_basename. Skip known compiler wrappers and cross-prefix.
+func_cc_basename ()
+{
+ for cc_temp in $*""; do
+ case $cc_temp in
+ compile | *[\\/]compile | ccache | *[\\/]ccache ) ;;
+ distcc | *[\\/]distcc | purify | *[\\/]purify ) ;;
+ \-*) ;;
+ *) break;;
+ esac
+ done
+ func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+}
+
+
+# ### END FUNCTIONS SHARED WITH CONFIGURE
+
+_LT_EOF
+
+ case $host_os in
+ aix3*)
+ cat <<\_LT_EOF >> "$cfgfile"
+# AIX sometimes has problems with the GCC collect2 program. For some
+# reason, if we set the COLLECT_NAMES environment variable, the problems
+# vanish in a puff of smoke.
+if test set != "${COLLECT_NAMES+set}"; then
+ COLLECT_NAMES=
+ export COLLECT_NAMES
+fi
+_LT_EOF
+ ;;
+ esac
+
+
+ltmain=$ac_aux_dir/ltmain.sh
+
+
+ # We use sed instead of cat because bash on DJGPP gets confused if
+ # if finds mixed CR/LF and LF-only lines. Since sed operates in
+ # text mode, it properly converts lines to CR/LF. This bash problem
+ # is reportedly fixed, but why not run on old versions too?
+ sed '$q' "$ltmain" >> "$cfgfile" \
+ || (rm -f "$cfgfile"; exit 1)
+
+ mv -f "$cfgfile" "$ofile" ||
+ (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
+ chmod +x "$ofile"
+
+
+ cat <<_LT_EOF >> "$ofile"
+
+# ### BEGIN LIBTOOL TAG CONFIG: CXX
+
+# The linker used to build libraries.
+LD=$lt_LD_CXX
+
+# How to create reloadable object files.
+reload_flag=$lt_reload_flag_CXX
+reload_cmds=$lt_reload_cmds_CXX
+
+# Commands used to build an old-style archive.
+old_archive_cmds=$lt_old_archive_cmds_CXX
+
+# A language specific compiler.
+CC=$lt_compiler_CXX
+
+# Is the compiler the GNU compiler?
+with_gcc=$GCC_CXX
+
+# Compiler flag to turn off builtin functions.
+no_builtin_flag=$lt_lt_prog_compiler_no_builtin_flag_CXX
+
+# Additional compiler flags for building library objects.
+pic_flag=$lt_lt_prog_compiler_pic_CXX
+
+# How to pass a linker flag through the compiler.
+wl=$lt_lt_prog_compiler_wl_CXX
+
+# Compiler flag to prevent dynamic linking.
+link_static_flag=$lt_lt_prog_compiler_static_CXX
+
+# Does compiler simultaneously support -c and -o options?
+compiler_c_o=$lt_lt_cv_prog_compiler_c_o_CXX
+
+# Whether or not to add -lc for building shared libraries.
+build_libtool_need_lc=$archive_cmds_need_lc_CXX
+
+# Whether or not to disallow shared libs when runtime libs are static.
+allow_libtool_libs_with_static_runtimes=$enable_shared_with_static_runtimes_CXX
+
+# Compiler flag to allow reflexive dlopens.
+export_dynamic_flag_spec=$lt_export_dynamic_flag_spec_CXX
+
+# Compiler flag to generate shared objects directly from archives.
+whole_archive_flag_spec=$lt_whole_archive_flag_spec_CXX
+
+# Whether the compiler copes with passing no objects directly.
+compiler_needs_object=$lt_compiler_needs_object_CXX
+
+# Create an old-style archive from a shared archive.
+old_archive_from_new_cmds=$lt_old_archive_from_new_cmds_CXX
+
+# Create a temporary old-style archive to link instead of a shared archive.
+old_archive_from_expsyms_cmds=$lt_old_archive_from_expsyms_cmds_CXX
+
+# Commands used to build a shared archive.
+archive_cmds=$lt_archive_cmds_CXX
+archive_expsym_cmds=$lt_archive_expsym_cmds_CXX
+
+# Commands used to build a loadable module if different from building
+# a shared archive.
+module_cmds=$lt_module_cmds_CXX
+module_expsym_cmds=$lt_module_expsym_cmds_CXX
+
+# Whether we are building with GNU ld or not.
+with_gnu_ld=$lt_with_gnu_ld_CXX
+
+# Flag that allows shared libraries with undefined symbols to be built.
+allow_undefined_flag=$lt_allow_undefined_flag_CXX
+
+# Flag that enforces no undefined symbols.
+no_undefined_flag=$lt_no_undefined_flag_CXX
+
+# Flag to hardcode \$libdir into a binary during linking.
+# This must work even if \$libdir does not exist
+hardcode_libdir_flag_spec=$lt_hardcode_libdir_flag_spec_CXX
+
+# Whether we need a single "-rpath" flag with a separated argument.
+hardcode_libdir_separator=$lt_hardcode_libdir_separator_CXX
+
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
+# DIR into the resulting binary.
+hardcode_direct=$hardcode_direct_CXX
+
+# Set to "yes" if using DIR/libNAME\$shared_ext during linking hardcodes
+# DIR into the resulting binary and the resulting library dependency is
+# "absolute",i.e impossible to change by setting \$shlibpath_var if the
+# library is relocated.
+hardcode_direct_absolute=$hardcode_direct_absolute_CXX
+
+# Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+# into the resulting binary.
+hardcode_minus_L=$hardcode_minus_L_CXX
+
+# Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+# into the resulting binary.
+hardcode_shlibpath_var=$hardcode_shlibpath_var_CXX
+
+# Set to "yes" if building a shared library automatically hardcodes DIR
+# into the library and all subsequent libraries and executables linked
+# against it.
+hardcode_automatic=$hardcode_automatic_CXX
+
+# Set to yes if linker adds runtime paths of dependent libraries
+# to runtime path list.
+inherit_rpath=$inherit_rpath_CXX
+
+# Whether libtool must link a program against all its dependency libraries.
+link_all_deplibs=$link_all_deplibs_CXX
+
+# Set to "yes" if exported symbols are required.
+always_export_symbols=$always_export_symbols_CXX
+
+# The commands to list exported symbols.
+export_symbols_cmds=$lt_export_symbols_cmds_CXX
+
+# Symbols that should not be listed in the preloaded symbols.
+exclude_expsyms=$lt_exclude_expsyms_CXX
+
+# Symbols that must always be exported.
+include_expsyms=$lt_include_expsyms_CXX
+
+# Commands necessary for linking programs (against libraries) with templates.
+prelink_cmds=$lt_prelink_cmds_CXX
+
+# Commands necessary for finishing linking programs.
+postlink_cmds=$lt_postlink_cmds_CXX
+
+# Specify filename containing input files.
+file_list_spec=$lt_file_list_spec_CXX
+
+# How to hardcode a shared library path into an executable.
+hardcode_action=$hardcode_action_CXX
+
+# The directories searched by this compiler when creating a shared library.
+compiler_lib_search_dirs=$lt_compiler_lib_search_dirs_CXX
+
+# Dependencies to place before and after the objects being linked to
+# create a shared library.
+predep_objects=$lt_predep_objects_CXX
+postdep_objects=$lt_postdep_objects_CXX
+predeps=$lt_predeps_CXX
+postdeps=$lt_postdeps_CXX
+
+# The library search path used internally by the compiler when linking
+# a shared library.
+compiler_lib_search_path=$lt_compiler_lib_search_path_CXX
+
+# ### END LIBTOOL TAG CONFIG: CXX
+_LT_EOF
+
+ ;;
+ "podwrapper.pl":F) chmod +x,-w podwrapper.pl ;;
+
+ esac
+done # for ac_tag
+
+
+as_fn_exit 0
+_ACEOF
+ac_clean_files=$ac_clean_files_save
+
+test $ac_write_fail = 0 ||
+ as_fn_error $? "write failure creating $CONFIG_STATUS" "$LINENO" 5
+
+
+# configure is writing to config.log, and then calls config.status.
+# config.status does its own redirection, appending to config.log.
+# Unfortunately, on DOS this fails, as config.log is still kept open
+# by configure, so config.status won't be able to write to it; its
+# output is simply discarded. So we exec the FD to /dev/null,
+# effectively closing config.log, so it can be properly (re)opened and
+# appended to by config.status. When coming back to configure, we
+# need to make the FD available again.
+if test "$no_create" != yes; then
+ ac_cs_success=:
+ ac_config_status_args=
+ test "$silent" = yes &&
+ ac_config_status_args="$ac_config_status_args --quiet"
+ exec 5>/dev/null
+ $SHELL $CONFIG_STATUS $ac_config_status_args || ac_cs_success=false
+ exec 5>>config.log
+ # Use ||, not &&, to avoid exiting from the if with $? = 1, which
+ # would make configure fail if this is the last instruction.
+ $ac_cs_success || as_fn_exit 1
+fi
+if test -n "$ac_unrecognized_opts" && test "$enable_option_checking" != no; then
+ { $as_echo "$as_me:${as_lineno-$LINENO}: WARNING: unrecognized options: $ac_unrecognized_opts" >&5
+$as_echo "$as_me: WARNING: unrecognized options: $ac_unrecognized_opts" >&2;}
+fi
+
+
+echo
+echo
+echo "----------------------------------------------------------------------"
+echo "Thank you for downloading $PACKAGE_STRING"
+echo
+echo "This is how we have configured the optional components for you today:"
+echo
+
+feature ()
+{
+ echo -n " $1"
+ shift
+ if $@; then echo "yes"; else echo "no"; fi
+}
+
+echo "Optional server features:"
+echo
+feature "bash-completion ........................ " \
+ test "x$HAVE_BASH_COMPLETION_TRUE" = "x"
+feature "manual pages ........................... " \
+ test "x$HAVE_POD_TRUE" = "x"
+feature "SELinux ................................ " \
+ test "x$LIBSELINUX_LIBS" != "x"
+feature "TLS .................................... " \
+ test "x$GNUTLS_LIBS" != "x"
+
+echo
+echo "Optional plugins:"
+echo
+feature "curl ................................... " \
+ test "x$HAVE_CURL_TRUE" = "x"
+feature "example4 ............................... " \
+ test "x$HAVE_PERL_TRUE" = "x"
+feature "ext2 ................................... " \
+ test "x$HAVE_EXT2_TRUE" = "x"
+feature "floppy ................................. " \
+ test "x$HAVE_ICONV_TRUE" = "x"
+feature "guestfs ................................ " \
+ test "x$HAVE_LIBGUESTFS_TRUE" = "x"
+feature "gzip ................................... " \
+ test "x$HAVE_ZLIB_TRUE" = "x"
+feature "iso .................................... " \
+ test "x$HAVE_ISO_TRUE" = "x"
+feature "libvirt ................................ " \
+ test "x$HAVE_LIBVIRT_TRUE" = "x"
+feature "ssh .................................... " \
+ test "x$HAVE_SSH_TRUE" = "x"
+feature "tar .................................... " \
+ test "x$HAVE_PERL_TRUE" = "x"
+feature "vddk ................................... " \
+ test "x$HAVE_VDDK_TRUE" = "x"
+
+
+echo
+echo "Languages:"
+echo
+feature "lua .................................... " \
+ test "x$HAVE_LUA_TRUE" = "x"
+feature "ocaml .................................. " \
+ test "x$HAVE_OCAML_TRUE" = "x"
+feature "perl ................................... " \
+ test "x$HAVE_PERL_TRUE" = "x"
+feature "python ................................. " \
+ test "x$HAVE_PYTHON_TRUE" = "x"
+feature "ruby ................................... " \
+ test "x$HAVE_RUBY_TRUE" = "x"
+feature "rust ................................... " \
+ test "x$HAVE_RUST_TRUE" = "x"
+feature "tcl .................................... " \
+ test "x$HAVE_TCL_TRUE" = "x"
+
+
+echo
+echo "Optional filters:"
+echo
+feature "xz ..................................... " \
+ test "x$HAVE_LIBLZMA_TRUE" = "x"
+
+echo
+echo "If any optional component is configured ‘no’ when you expected ‘yes’"
+echo "then you should check the preceding messages and README."
+echo
+echo "Please report bugs back to the mailing list:"
+echo "http://www.redhat.com/mailman/listinfo/libguestfs"
+echo
+echo "Next you should type 'make' to build the package,"
+echo "then 'make check' to run the tests."
--- /dev/null
+# nbdkit
+# Copyright (C) 2013-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+AC_INIT([nbdkit], [1.12.4])
+AC_CONFIG_MACRO_DIR([m4])
+m4_ifdef([AC_USE_SYSTEM_EXTENSIONS],[],
+ [m4_define([AC_USE_SYSTEM_EXTENSIONS],[])])
+AC_USE_SYSTEM_EXTENSIONS
+AC_SYS_LARGEFILE
+
+dnl NB: Do not [quote] this parameter.
+AM_INIT_AUTOMAKE(foreign)
+AC_PROG_LIBTOOL
+LT_INIT
+
+AC_CANONICAL_HOST
+
+AC_PROG_SED
+
+dnl Check for basic C environment.
+AC_PROG_CC_STDC
+AC_PROG_INSTALL
+AC_PROG_CPP
+AC_CANONICAL_HOST
+
+AC_C_PROTOTYPES
+test "x$U" != "x" && AC_MSG_ERROR([Compiler not ANSI compliant])
+
+AM_PROG_CC_C_O
+
+dnl Check for C++ (optional, we just use this to test the header
+dnl can be included from C++ code).
+AC_PROG_CXX
+
+dnl The C++ compiler test is pretty useless because even if it fails
+dnl it sets CXX=g++. So test the compiler actually works.
+AC_MSG_CHECKING([if the C++ compiler really really works])
+AS_IF([$CXX --version >&AS_MESSAGE_LOG_FD 2>&1],[have_cxx=yes],[have_cxx=no])
+AC_MSG_RESULT([$have_cxx])
+AM_CONDITIONAL([HAVE_CXX], [test "$have_cxx" = "yes"])
+
+AC_ARG_ENABLE([gcc-warnings],
+ [AS_HELP_STRING([--enable-gcc-warnings],
+ [turn on lots of GCC warnings (for developers)])],
+ [case $enableval in
+ yes|no) ;;
+ *) AC_MSG_ERROR([bad value $enableval for gcc-warnings option]) ;;
+ esac
+ gcc_warnings=$enableval],
+ [gcc_warnings=no]
+)
+if test "x$gcc_warnings" = "xyes"; then
+ WARNINGS_CFLAGS="-Wall -Werror"
+ AC_SUBST([WARNINGS_CFLAGS])
+fi
+
+dnl Check if the compiler supports -std=c90 flag. This is only used
+dnl during a test. OpenBSD GCC does not support this flag so we skip
+dnl that test.
+AC_MSG_CHECKING([if the compiler supports -std=c90 for ANSI C test])
+old_CFLAGS="$CFLAGS"
+CFLAGS="$CFLAGS -std=c90"
+AC_COMPILE_IFELSE([AC_LANG_PROGRAM([])],
+ [supports_std_c90=yes],
+ [supports_std_c90=no])
+CFLAGS="$old_CFLAGS"
+AC_MSG_RESULT([$supports_std_c90])
+AM_CONDITIONAL([CAN_TEST_ANSI_C], [test "x$supports_std_c90" = "xyes"])
+
+dnl On Haiku we must use BSD-compatibility headers to get the endian
+dnl macros we use.
+AC_MSG_CHECKING(whether OS-dependent include paths are required)
+AS_CASE([$host_os],
+ [haiku*], [CFLAGS="$CFLAGS -I`findpaths -p /system B_FIND_PATH_HEADERS_DIRECTORY`/bsd"; AC_MSG_RESULT(yes)],
+ [AC_MSG_RESULT(no)]
+)
+
+dnl On Linux /tmp is often tmpfs which is not large enough, so use /var/tmp.
+dnl But Haiku only has /tmp.
+AC_MSG_CHECKING([for temporary directory for large files])
+AS_CASE([$host_os],
+ [haiku*], [LARGE_TMPDIR=/tmp],
+ [LARGE_TMPDIR=/var/tmp]
+)
+AC_MSG_RESULT([$LARGE_TMPDIR])
+AC_DEFINE_UNQUOTED([LARGE_TMPDIR],["$LARGE_TMPDIR"],
+ [Temporary directory for large files])
+
+dnl Check if libc has program_invocation_short_name.
+AC_CHECK_DECLS([program_invocation_short_name], [], [], [#include <errno.h>])
+
+AX_PTHREAD
+
+dnl Check if __attribute__((cleanup(...))) works.
+dnl Set -Werror, otherwise gcc will only emit a warning for attributes
+dnl that it doesn't understand.
+acx_nbdkit_save_CFLAGS="${CFLAGS}"
+CFLAGS="${CFLAGS} -Werror"
+AC_MSG_CHECKING([if __attribute__((cleanup(...))) works with this compiler])
+AC_COMPILE_IFELSE([
+AC_LANG_SOURCE([[
+#include <stdio.h>
+#include <stdlib.h>
+
+void
+freep (void *ptr)
+{
+ exit (EXIT_SUCCESS);
+}
+
+void
+test (void)
+{
+ __attribute__((cleanup(freep))) char *ptr = malloc (100);
+}
+
+int
+main (int argc, char *argv[])
+{
+ test ();
+ exit (EXIT_FAILURE);
+}
+]])
+ ],[
+ AC_MSG_RESULT([yes])
+ ],[
+ AC_MSG_RESULT([no])
+ AC_MSG_ERROR(
+['__attribute__((cleanup(...)))' does not work.
+
+You may not be using a sufficiently recent version of GCC or CLANG, or
+you may be using a C compiler which does not support this attribute,
+or the configure test may be wrong.
+
+This code requires the attribute to work for proper locking between threads.])])
+CFLAGS="${acx_nbdkit_save_CFLAGS}"
+
+dnl Check for __auto_type (GCC extension).
+AC_MSG_CHECKING([if __auto_type is available in this compiler])
+AC_COMPILE_IFELSE([
+AC_LANG_SOURCE([[
+static int
+test (int a)
+{
+ __auto_type at = a;
+ return at;
+}
+]])
+ ],[
+ AC_MSG_RESULT([yes])
+ AC_DEFINE([HAVE_AUTO_TYPE],[1],[__auto_type is available])
+ ],[
+ AC_MSG_RESULT([no])
+ ]
+)
+
+dnl Check for other headers, all optional.
+AC_CHECK_HEADERS([\
+ alloca.h \
+ byteswap.h \
+ endian.h \
+ sys/endian.h \
+ sys/prctl.h \
+ sys/procctl.h])
+
+dnl Check for functions in libc, all optional.
+AC_CHECK_FUNCS([\
+ fdatasync \
+ get_current_dir_name \
+ mkostemp])
+
+dnl Check whether printf("%m") works
+AC_CACHE_CHECK([whether the printf family supports %m],
+ [nbdkit_cv_func_printf_percent_m],
+ [AC_RUN_IFELSE(
+ [AC_LANG_PROGRAM([[
+#include <stdio.h>
+#include <string.h>
+#include <errno.h>
+ ]], [[
+ char buf[200] = "";
+ errno = EINVAL;
+ snprintf(buf, sizeof buf, "%m");
+ return !!strcmp (buf, strerror (EINVAL));
+ ]])],
+ [nbdkit_cv_func_printf_percent_m=yes],
+ [nbdkit_cv_func_printf_percent_m=no],
+ [[
+ case "$host_os" in
+ *-gnu* | gnu*) nbdkit_cv_func_printf_percent_m=yes;;
+ *) nbdkit_cv_func_printf_percent_m="guessing no";;
+ esac
+ ]])])
+AS_IF([test "x$nbdkit_cv_func_printf_percent_m" = xyes],
+ [AC_DEFINE([HAVE_VFPRINTF_PERCENT_M],[1],
+ [Define to 1 if vfprintf supports %m.])])
+
+old_LIBS="$LIBS"
+AC_SEARCH_LIBS([dlsym], [dl dld], [
+ AS_IF([test "x$ac_cv_search_dlsym" != "xnone required"],
+ [DL_LIBS="$ac_cv_search_dlsym"], [DL_LIBS=])
+ AC_SUBST([DL_LIBS])
+ ], [AC_MSG_ERROR([unable to find the dlsym() function])
+])
+LIBS="$old_LIBS"
+
+dnl Test if <iconv.h> header can build working binaries.
+dnl
+dnl On FreeBSD: iconv and libiconv both exist, both can be installed
+dnl simultaneously, <iconv.h> can exist in two separate places, and
+dnl if you get the wrong header/library mix everything breaks.
+dnl
+dnl On Haiku: libiconv is required to link to iconv_* functions.
+AC_ARG_WITH([iconv],
+ [AS_HELP_STRING([--without-iconv],
+ [don't try to link against iconv @<:@default=check@:>@])],
+ [],
+ [with_iconv=check])
+AS_IF([test "x$with_iconv" != "xno"],[
+ AC_CHECK_HEADER([iconv.h],[
+ AC_MSG_CHECKING([if <iconv.h> can be used to link a program])
+ AC_LINK_IFELSE([
+AC_LANG_SOURCE([[
+#include <stdio.h>
+#include <stdlib.h>
+#include <iconv.h>
+int
+main (int argc, char *argv[])
+{
+ iconv_t ic = iconv_open ("", "");
+ iconv_close (ic);
+ exit (0);
+}
+]])
+ ],[
+ AC_MSG_RESULT([yes])
+ iconv_working=yes
+ ],[
+ AC_MSG_RESULT([no])
+ ])
+ ])
+ ])
+AM_CONDITIONAL([HAVE_ICONV], [test "x$iconv_working" = "xyes"])
+
+dnl Don't use linker script for the server on FreeBSD because
+dnl FreeBSD's linker is broken. See eg:
+dnl https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=190851
+AC_MSG_CHECKING([if we should use a linker script for the server])
+AS_CASE([$host_os],
+ [freebsd*], [use_linker_script_for_server=no],
+ [use_linker_script_for_server=yes]
+)
+AC_MSG_RESULT([$use_linker_script_for_server])
+AM_CONDITIONAL([USE_LINKER_SCRIPT_FOR_SERVER],
+ [test "x$use_linker_script_for_server" = "xyes"])
+
+dnl Check if -rdynamic linker flag works.
+acx_nbdkit_save_LDFLAGS="${LDFLAGS}"
+LDFLAGS="${LDFLAGS} -rdynamic"
+AC_MSG_CHECKING([if linker supports -rdynamic])
+AC_LINK_IFELSE([
+AC_LANG_SOURCE([[
+#include <stdlib.h>
+int
+main (int argc, char *argv[])
+{
+ exit (EXIT_SUCCESS);
+}
+]])
+ ],[
+ AC_MSG_RESULT([yes])
+ DL_LDFLAGS=-rdynamic
+ ],[
+ AC_MSG_RESULT([no])
+])
+dnl restore CFLAGS
+LDFLAGS="${acx_nbdkit_save_LDFLAGS}"
+AC_SUBST([DL_LDFLAGS])
+
+dnl Check for dladdr in -ldl, optional. This is a glibc extension.
+old_LIBS="$LIBS"
+LIBS="$DL_LIBS $LIBS"
+AC_CHECK_FUNCS([dladdr])
+LIBS="$old_LIBS"
+
+AC_SEARCH_LIBS([getaddrinfo], [network socket])
+
+dnl Check for SELinux socket labelling (optional).
+PKG_CHECK_MODULES([LIBSELINUX], [libselinux], [
+ AC_SUBST([LIBSELINUX_CFLAGS])
+ AC_SUBST([LIBSELINUX_LIBS])
+ AC_DEFINE([HAVE_LIBSELINUX],[1],[libselinux found at compile time.])
+], [
+ AC_MSG_WARN([libselinux not found, SELinux socket labelling support will be disabled.])
+])
+
+dnl Check for GnuTLS (optional, for TLS support).
+PKG_CHECK_MODULES([GNUTLS], [gnutls >= 3.3.0], [
+ AC_SUBST([GNUTLS_CFLAGS])
+ AC_SUBST([GNUTLS_LIBS])
+ AC_DEFINE([HAVE_GNUTLS],[1],[gnutls found at compile time.])
+], [
+ AC_MSG_WARN([gnutls not found or < 3.3.0, TLS support will be disabled.])
+])
+
+AS_IF([test "$GNUTLS_LIBS" != ""],[
+ AC_MSG_CHECKING([for default TLS session priority string])
+ AC_ARG_WITH([tls-priority],
+ [AS_HELP_STRING([--with-tls-priority],
+ [default TLS session priority string @<:@default=NORMAL@:>@])],
+ [tls_priority=$withval],
+ [tls_priority=NORMAL])
+ AC_MSG_RESULT([$tls_priority])
+ AC_DEFINE_UNQUOTED([TLS_PRIORITY],["$tls_priority"],
+ [Default TLS session priority string])
+
+ # Check for APIs which may not be present.
+ old_LIBS="$LIBS"
+ LIBS="$GNUTLS_LIBS $LIBS"
+ AC_CHECK_FUNCS([\
+ gnutls_base64_decode2 \
+ gnutls_certificate_set_known_dh_params \
+ gnutls_session_set_verify_cert])
+ LIBS="$old_LIBS"
+])
+
+dnl Check for valgrind.
+AC_CHECK_PROG([VALGRIND],[valgrind],[valgrind],[no])
+
+dnl If valgrind headers are available (optional).
+dnl Since this is only useful for developers, you have to enable
+dnl it explicitly using --enable-valgrind.
+AC_ARG_ENABLE([valgrind],
+ [AS_HELP_STRING([--enable-valgrind],
+ [enable Valgrind extensions (for developers)])],
+ [enable_valgrind=yes],
+ [enable_valgrind=no])
+AS_IF([test "x$enable_valgrind" = "xyes"],[
+ PKG_CHECK_MODULES([VALGRIND], [valgrind], [
+ AC_SUBST([VALGRIND_CFLAGS])
+ AC_SUBST([VALGRIND_LIBS])
+ AC_DEFINE([HAVE_VALGRIND],[1],[Valgrind headers found at compile time])
+ ],[
+ AC_MSG_ERROR([--enable-valgrind given, but Valgrind headers are not available])
+ ])
+])
+
+dnl Bash completion.
+PKG_CHECK_MODULES([BASH_COMPLETION], [bash-completion >= 2.0], [
+ bash_completion=yes
+ AC_MSG_CHECKING([for bash-completions directory])
+ m4_ifdef([PKG_CHECK_VAR],[
+ PKG_CHECK_VAR(bashcompdir, [bash-completion], [completionsdir])
+ ])
+ AS_IF([test -z "$bashcompdir"], [
+ bashcompdir="${sysconfdir}/bash_completion.d"
+ ])
+ AC_MSG_RESULT([$bashcompdir])
+ AC_SUBST([bashcompdir])
+],[
+ bash_completion=no
+ AC_MSG_WARN([bash-completion not installed])
+])
+AM_CONDITIONAL([HAVE_BASH_COMPLETION],[test "x$bash_completion" = "xyes"])
+
+dnl Check we have enough to run podwrapper.
+AC_CHECK_PROG([PERL],[perl],[perl],[no])
+AS_IF([test "x$PERL" != "xno"],[
+ AC_MSG_CHECKING([if we have perl Pod::Man and Pod::Simple])
+ AS_IF([$PERL -MPod::Man -MPod::Simple -e 1 >&AS_MESSAGE_LOG_FD 2>&1],[
+ enable_pod=yes
+ ],[
+ enable_pod=no
+ ])
+ AC_MSG_RESULT([$enable_pod])
+])
+AM_CONDITIONAL([HAVE_POD],
+ [test "x$PERL" != "xno" && test "x$enable_pod" = "xyes"])
+
+dnl Define the path to the podwrapper program.
+PODWRAPPER="$PERL $(pwd)/podwrapper.pl"
+AC_SUBST([PODWRAPPER])
+
+dnl Allow all plugins and filters to be disabled.
+AC_ARG_ENABLE([plugins],
+ [AS_HELP_STRING([--disable-plugins],
+ [disable all bundled plugins and filters])])
+AM_CONDITIONAL([HAVE_PLUGINS], [test "x$enable_plugins" != "xno"])
+
+dnl Check for Perl, for embedding in the perl plugin.
+dnl Note that the perl binary is checked above.
+AC_ARG_ENABLE([perl],
+ [AS_HELP_STRING([--disable-perl], [disable Perl embed plugin])],
+ [],
+ [enable_perl=yes])
+AS_IF([test "x$PERL" != "xno" && test "x$enable_perl" != "xno"],[
+ dnl Check for Perl archlib.
+ AC_MSG_CHECKING([for Perl embed archlib])
+ PERL_ARCHLIB="$($PERL -MConfig -e 'print $Config{archlib}')"
+ AS_IF([ test -n "$PERL_ARCHLIB" ],[
+ AC_MSG_RESULT([$PERL_ARCHLIB])
+ ],[
+ AC_MSG_NOTICE([Perl embed module disabled])
+ enable_perl=no
+ ])
+
+ dnl Check for Perl CFLAGS.
+ AC_MSG_CHECKING([for Perl embed CFLAGS])
+ PERL_CFLAGS="$($PERL -MExtUtils::Embed -e 'ccflags')"
+ AS_IF([ test -n "$PERL_CFLAGS" ],[
+ AC_MSG_RESULT([$PERL_CFLAGS])
+ ],[
+ AC_MSG_NOTICE([Perl embed module disabled])
+ enable_perl=no
+ ])
+
+ dnl Check for Perl LDOPTS.
+ AC_MSG_CHECKING([for Perl embed LDOPTS])
+ PERL_LDOPTS="$($PERL -MExtUtils::Embed -e 'ldopts')"
+ AC_MSG_RESULT([$PERL_LDOPTS])
+
+ dnl XXX Could check these actually work.
+])
+AM_CONDITIONAL([HAVE_PERL],[test "x$enable_perl" != "xno" && test "x$PERL" != "xno"])
+AC_SUBST([PERL_ARCHLIB])
+AC_SUBST([PERL_CFLAGS])
+AC_SUBST([PERL_LDOPTS])
+
+dnl Check for Python, for embedding in the python plugin.
+AC_CHECK_PROG([PYTHON],[python],[python],[no])
+AC_ARG_ENABLE([python],
+ [AS_HELP_STRING([--disable-python], [disable Python embed plugin])],
+ [],
+ [enable_python=yes])
+AS_IF([test "x$PYTHON" != "xno" && test "x$enable_python" != "xno"],[
+ AC_MSG_CHECKING([version of $PYTHON])
+ PYTHON_VERSION_MAJOR=`$PYTHON -c "import sys; print (sys.version_info@<:@0@:>@)"`
+ PYTHON_VERSION_MINOR=`$PYTHON -c "import sys; print (sys.version_info@<:@1@:>@)"`
+ PYTHON_VERSION="$PYTHON_VERSION_MAJOR.$PYTHON_VERSION_MINOR"
+ AS_IF([test -n "$PYTHON_VERSION"],[
+ AC_MSG_RESULT([$PYTHON_VERSION])
+ ],[
+ AC_MSG_NOTICE([Python embed module disabled])
+ enable_python=no
+ ])
+
+ dnl Check for Python CFLAGS, libraries.
+ dnl For Python >= 3.8 we have to use python-<VERSION>-embed.pc, see:
+ dnl https://docs.python.org/3.8/whatsnew/3.8.html#debug-build-uses-the-same-abi-as-release-build
+ dnl The python.pc is called python-<VERSION>.pc on Debian and
+ dnl later versions of Fedora, and python.pc on older versions
+ dnl of Fedora.
+ PKG_CHECK_MODULES([PYTHON], [python-"$PYTHON_VERSION"-embed], [
+ AC_SUBST([PYTHON_CFLAGS])
+ AC_SUBST([PYTHON_LIBS])
+ AC_SUBST([PYTHON_VERSION])
+ AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time])
+ ],[
+ PKG_CHECK_MODULES([PYTHON], [python-"$PYTHON_VERSION"], [
+ AC_SUBST([PYTHON_CFLAGS])
+ AC_SUBST([PYTHON_LIBS])
+ AC_SUBST([PYTHON_VERSION])
+ AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time])
+ ],[
+ PKG_CHECK_MODULES([PYTHON], [python], [
+ AC_SUBST([PYTHON_CFLAGS])
+ AC_SUBST([PYTHON_LIBS])
+ AC_SUBST([PYTHON_VERSION])
+ AC_DEFINE([HAVE_PYTHON],[1],[Python library found at compile time])
+ ],[
+ AC_MSG_WARN([python $PYTHON_VERSION not found])
+ enable_python=no
+ ])])])
+
+ dnl Check for various functions needed by the bindings.
+ old_LIBS="$LIBS"
+
+ PYTHON_BLDLIBRARY=`$PYTHON -c "import distutils.sysconfig; \
+ print (distutils.sysconfig.get_config_var('BLDLIBRARY'))"`
+ AC_CHECK_LIB([c],[PyString_FromString],
+ [AC_DEFINE([HAVE_PYSTRING_FROMSTRING],1,
+ [Found PyString_FromString in libpython.])],
+ [],[$PYTHON_BLDLIBRARY])
+ AC_CHECK_LIB([c],[PyString_AsString],
+ [AC_DEFINE([HAVE_PYSTRING_ASSTRING],1,
+ [Found PyString_AsString in libpython.])],
+ [],[$PYTHON_BLDLIBRARY])
+ AC_CHECK_LIB([c],[PyUnicode_AsUTF8],
+ [AC_DEFINE([HAVE_PYUNICODE_ASUTF8],1,
+ [Found PyUnicode_AsUTF8 in libpython.])],
+ [],[$PYTHON_BLDLIBRARY])
+
+ LIBS="$old_LIBS"
+
+])
+AM_CONDITIONAL([HAVE_PYTHON],[test "x$enable_python" != "xno" && test "x$PYTHON" != "xno"])
+AC_SUBST([PYTHON_CFLAGS])
+AC_SUBST([PYTHON_LIBS])
+AC_SUBST([PYTHON_LDFLAGS])
+
+dnl For the OCaml plugin, you can set OCAMLOPTFLAGS before running
+dnl ./configure to specify any extra flags you want to pass to
+dnl ocamlopt.
+AC_SUBST([OCAMLOPTFLAGS])
+
+dnl Check for OCaml, for embedding in the ocaml plugin.
+AC_PROG_OCAML
+AC_ARG_ENABLE([ocaml],
+ [AS_HELP_STRING([--disable-ocaml], [disable OCaml embed plugin])],
+ [],
+ [enable_ocaml=yes])
+AS_IF([test "x$OCAMLOPT" != "xno" && test "x$enable_ocaml" != "xno"],[
+ dnl Check OCaml can create a shared library (see README for details).
+ AC_MSG_CHECKING([if $OCAMLOPT can create a shared library])
+ echo 'print_endline "test"' > conftest.ml
+ AS_IF([$OCAMLOPT $OCAMLOPTFLAGS -output-obj -runtime-variant _pic -o conftest.so conftest.ml >&AS_MESSAGE_LOG_FD 2>&1],[
+ AC_MSG_RESULT([yes])
+ ocaml_link_shared=yes
+ ],[
+ AC_MSG_RESULT([no])
+ ])
+ rm -f conftest.ml conftest.cmi conftest.cmx conftest.so conftest.o
+])
+AM_CONDITIONAL([HAVE_OCAML],[test "x$OCAMLOPT" != "xno" &&
+ test "x$ocaml_link_shared" = "xyes"])
+
+dnl For developing plugins in Rust, optional.
+AC_CHECK_PROG([CARGO],[cargo],[cargo],[no])
+AC_ARG_ENABLE([rust],
+ [AS_HELP_STRING([--disable-rust], [disable Rust plugin])],
+ [],
+ [enable_rust=yes])
+AM_CONDITIONAL([HAVE_RUST],
+ [test "x$CARGO" != "xno" && test "x$enable_rust" != "xno"])
+
+dnl Check for Ruby, for embedding in the Ruby plugin.
+AC_CHECK_PROG([RUBY],[ruby],[ruby],[no])
+AC_ARG_ENABLE([ruby],
+ [AS_HELP_STRING([--disable-ruby], [disable Ruby plugin])],
+ [],
+ [enable_ruby=yes])
+AS_IF([test "x$RUBY" != "xno" && test "x$enable_ruby" != "xno"],[
+ PKG_CHECK_MODULES([RUBY], [ruby], [
+ AC_SUBST([RUBY_CFLAGS])
+ AC_SUBST([RUBY_LIBS])
+ ],[
+ AC_MSG_WARN([ruby not found])
+ enable_ruby=no
+ ])
+])
+AM_CONDITIONAL([HAVE_RUBY],[test "x$RUBY" != "xno" &&
+ test "x$enable_ruby" = "xyes"])
+
+dnl Check for Tcl, for embedding in the Tcl plugin.
+AC_ARG_ENABLE([tcl],
+ [AS_HELP_STRING([--disable-tcl], [disable Tcl plugin])],
+ [],
+ [enable_tcl=yes])
+AS_IF([test "x$enable_tcl" != "xno"],[
+ PKG_CHECK_MODULES([TCL], [tcl], [
+ AC_SUBST([TCL_CFLAGS])
+ AC_SUBST([TCL_LIBS])
+ ],[
+ AC_MSG_WARN([Tcl not found])
+ enable_tcl=no
+ ])
+])
+AM_CONDITIONAL([HAVE_TCL],[test "x$enable_tcl" = "xyes"])
+
+dnl Check for Lua, for embedding in the Lua plugin.
+AC_ARG_ENABLE([lua],
+ [AS_HELP_STRING([--disable-lua], [disable Lua plugin])],
+ [],
+ [enable_lua=yes])
+AS_IF([test "x$enable_lua" != "xno"],[
+ PKG_CHECK_MODULES([LUA], [lua], [
+ AC_SUBST([LUA_CFLAGS])
+ AC_SUBST([LUA_LIBS])
+
+ dnl Lua 5.1 used by RHEL 7 does not have lua_isinteger.
+ old_LIBS="$LIBS"
+ LIBS="$LUA_LIBS $LIBS"
+ AC_CHECK_FUNCS([lua_isinteger])
+ LIBS="$old_LIBS"
+ ],[
+ AC_MSG_WARN([Lua not found])
+ enable_lua=no
+ ])
+])
+AM_CONDITIONAL([HAVE_LUA],[test "x$enable_lua" = "xyes"])
+
+dnl Check for curl (only if you want to compile the curl plugin).
+AC_ARG_WITH([curl],
+ [AS_HELP_STRING([--without-curl],
+ [disable curl plugin @<:@default=check@:>@])],
+ [],
+ [with_curl=check])
+AS_IF([test "$with_curl" != "no"],[
+ PKG_CHECK_MODULES([CURL], [libcurl],[
+ AC_SUBST([CURL_CFLAGS])
+ AC_SUBST([CURL_LIBS])
+ AC_DEFINE([HAVE_CURL],[1],[curl found at compile time.])
+ AC_CHECK_DECL([CURLOPT_UNIX_SOCKET_PATH], [
+ AC_DEFINE([HAVE_CURLOPT_UNIX_SOCKET_PATH],[1],
+ [CURLOPT_UNIX_SOCKET_PATH found at compile time.])
+ ], [], [#include <curl/curl.h>])
+ ],
+ [AC_MSG_WARN([curl not found, curl plugin will be disabled])])
+])
+AM_CONDITIONAL([HAVE_CURL],[test "x$CURL_LIBS" != "x"])
+
+dnl Check for libssh (only if you want to compile the ssh plugin).
+AC_ARG_WITH([ssh],
+ [AS_HELP_STRING([--without-ssh],
+ [disable ssh plugin @<:@default=check@:>@])],
+ [],
+ [with_ssh=check])
+AS_IF([test "$with_ssh" != "no"],[
+ PKG_CHECK_MODULES([SSH], [libssh >= 0.8.0],[
+ AC_SUBST([SSH_CFLAGS])
+ AC_SUBST([SSH_LIBS])
+ ],
+ [AC_MSG_WARN([libssh not found, ssh plugin will be disabled])])
+])
+AM_CONDITIONAL([HAVE_SSH],[test "x$SSH_LIBS" != "x"])
+
+dnl Check for genisoimage or mkisofs
+dnl (only if you want to compile the iso plugin).
+ISOPROG="no"
+AC_ARG_WITH([iso],
+ [AS_HELP_STRING([--without-iso],
+ [disable iso plugin @<:@default=check@:>@])],
+ [],
+ [with_iso=check])
+AS_IF([test "$with_iso" != "no"],[
+ AC_CHECK_PROG([GENISOIMAGE],[genisoimage],[genisoimage],[no])
+ AC_CHECK_PROG([MKISOFS],[mkisofs],[mkisofs],[no])
+ AS_IF([test "x$GENISOIMAGE" != "xno"],[
+ ISOPROG="$GENISOIMAGE"
+ ],[
+ AS_IF([test "x$MKISOFS" != "xno"],[
+ ISOPROG="$MKISOFS"
+ ])
+ ])
+ AS_IF([test "x$ISOPROG" != "xno"],[
+ AC_DEFINE_UNQUOTED([ISOPROG],["$ISOPROG"],
+ [Program used by iso plugin to make ISOs.])
+ ])
+])
+AC_SUBST([ISOPROG])
+AM_CONDITIONAL([HAVE_ISO],[test "x$ISOPROG" != "xno"])
+
+dnl Check for libvirt (only if you want to compile the libvirt plugin).
+AC_ARG_WITH([libvirt],
+ [AS_HELP_STRING([--without-libvirt],
+ [disable libvirt plugin @<:@default=check@:>@])],
+ [],
+ [with_libvirt=check])
+AS_IF([test "$with_libvirt" != "no"],[
+ PKG_CHECK_MODULES([LIBVIRT], [libvirt],[
+ AC_SUBST([LIBVIRT_CFLAGS])
+ AC_SUBST([LIBVIRT_LIBS])
+ AC_DEFINE([HAVE_LIBVIRT],[1],[libvirt found at compile time.])
+ ],
+ [AC_MSG_WARN([libvirt not found, libvirt plugin will be disabled])])
+])
+AM_CONDITIONAL([HAVE_LIBVIRT],[test "x$LIBVIRT_LIBS" != "x"])
+
+dnl Check for zlib (only if you want to compile the gzip plugin).
+AC_ARG_WITH([zlib],
+ [AS_HELP_STRING([--without-zlib],
+ [disable gzip plugin @<:@default=check@:>@])],
+ [],
+ [with_zlib=check])
+AS_IF([test "$with_zlib" != "no"],[
+ PKG_CHECK_MODULES([ZLIB], [zlib >= 1.2.3.5],[
+ AC_SUBST([ZLIB_CFLAGS])
+ AC_SUBST([ZLIB_LIBS])
+ AC_DEFINE([HAVE_ZLIB],[1],[zlib found at compile time.])
+ ],
+ [AC_MSG_WARN([zlib >= 1.2.3.5 not found, gzip plugin will be disabled])])
+])
+AM_CONDITIONAL([HAVE_ZLIB],[test "x$ZLIB_LIBS" != "x"])
+
+dnl Check for liblzma (only if you want to compile the xz filter).
+AC_ARG_WITH([liblzma],
+ [AS_HELP_STRING([--without-liblzma],
+ [disable xz filter @<:@default=check@:>@])],
+ [],
+ [with_liblzma=check])
+AS_IF([test "$with_liblzma" != "no"],[
+ PKG_CHECK_MODULES([LIBLZMA], [liblzma],[
+ AC_SUBST([LIBLZMA_CFLAGS])
+ AC_SUBST([LIBLZMA_LIBS])
+ AC_DEFINE([HAVE_LIBLZMA],[1],[liblzma found at compile time.])
+ ],
+ [AC_MSG_WARN([liblzma not found, xz filter will be disabled])])
+])
+AM_CONDITIONAL([HAVE_LIBLZMA],[test "x$LIBLZMA_LIBS" != "x"])
+
+dnl Check for libguestfs (only for the guestfs plugin and the test suite).
+AC_ARG_WITH([libguestfs],
+ [AS_HELP_STRING([--without-libguestfs],
+ [disable guestfs plugin and tests @<:@default=check@:>@])],
+ [],
+ [with_libguestfs=check])
+AS_IF([test "$with_libguestfs" != "no"],[
+ PKG_CHECK_MODULES([LIBGUESTFS], [libguestfs],[
+ # Although the library was found, we want to make sure it supports nbd
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM([[
+#include <guestfs.h>
+ ]], [[
+#ifndef GUESTFS_ADD_DRIVE_OPTS_PROTOCOL
+#error unsupported
+#endif
+ ]])], [
+ AC_SUBST([LIBGUESTFS_CFLAGS])
+ AC_SUBST([LIBGUESTFS_LIBS])
+ AC_DEFINE([HAVE_LIBGUESTFS],[1],[libguestfs found at compile time.])
+ ],[
+ LIBGUESTFS_LIBS=
+ AC_MSG_WARN([libguestfs too old, guestfs plugin and tests will be disabled])])
+ ],
+ [AC_MSG_WARN([libguestfs not found, guestfs plugin and tests will be disabled])])
+])
+AM_CONDITIONAL([HAVE_LIBGUESTFS],[test "x$LIBGUESTFS_LIBS" != "x"])
+
+dnl Check for guestfish (only needed for some of the tests).
+AC_CHECK_PROG([GUESTFISH], [guestfish], [guestfish], [no])
+AM_CONDITIONAL([HAVE_GUESTFISH], [test "x$GUESTFISH" != "xno"])
+
+dnl Check for ext2fs and com_err, for the ext2 plugin.
+AC_ARG_WITH([ext2],
+ [AS_HELP_STRING([--without-ext2],
+ [disable ext2 plugin @<:@default=check@:>@])],
+ [],
+ [with_ext2=check])
+AS_IF([test "$with_ext2" != "no"], [
+ PKG_CHECK_MODULES([EXT2FS], [ext2fs], [
+ AC_SUBST([EXT2FS_CFLAGS])
+ AC_SUBST([EXT2FS_LIBS])
+ AC_DEFINE([HAVE_EXT2FS],[1],[ext2fs found at compile time.])
+ ],
+ [AC_MSG_WARN([ext2fs not found, ext2 plugin will be disabled])])
+ PKG_CHECK_MODULES([COM_ERR], [com_err], [
+ AC_SUBST([COM_ERR_CFLAGS])
+ AC_SUBST([COM_ERR_LIBS])
+ AC_DEFINE([HAVE_COM_ERR],[1],[com_err found at compile time.])
+ ],
+ [AC_MSG_WARN([com_err not found, ext2 plugin will be disabled])])
+])
+AM_CONDITIONAL([HAVE_EXT2],
+ [test "x$EXT2FS_LIBS" != "x" && test "x$COM_ERR_LIBS" != "x"])
+
+dnl Check if the user wants to disable VDDK support.
+dnl See plugins/vddk/README.VDDK.
+AC_ARG_ENABLE([vddk],
+ [AS_HELP_STRING([--disable-vddk],
+ [disable VMware VDDK plugin])],
+ [],
+ [enable_vddk=yes])
+AM_CONDITIONAL([HAVE_VDDK], [test "x$enable_vddk" = "xyes"])
+
+dnl List of plugins and filters.
+lang_plugins="\
+ lua \
+ ocaml \
+ perl \
+ python \
+ ruby \
+ rust \
+ sh \
+ tcl \
+ "
+non_lang_plugins="\
+ curl \
+ data \
+ example1 \
+ example2 \
+ example3 \
+ example4 \
+ ext2 \
+ file \
+ floppy \
+ full \
+ guestfs \
+ gzip \
+ iso \
+ libvirt \
+ linuxdisk \
+ memory \
+ nbd \
+ null \
+ partitioning \
+ pattern \
+ random \
+ split \
+ ssh \
+ streaming \
+ tar \
+ vddk \
+ zero \
+ "
+plugins="$(echo $(printf %s\\n $lang_plugins $non_lang_plugins | sort -u))"
+filters="\
+ blocksize \
+ cache \
+ cow \
+ delay \
+ error \
+ fua \
+ log \
+ noextents \
+ nozero \
+ offset \
+ partition \
+ rate \
+ readahead \
+ truncate \
+ xz \
+ "
+AC_SUBST([plugins])
+AC_SUBST([lang_plugins])
+AC_SUBST([non_lang_plugins])
+AC_SUBST([filters])
+
+dnl Produce output files.
+AC_CONFIG_HEADERS([config.h])
+AC_CONFIG_FILES([podwrapper.pl],
+ [chmod +x,-w podwrapper.pl])
+AC_CONFIG_FILES([Makefile
+ bash/Makefile
+ common/bitmap/Makefile
+ common/gpt/Makefile
+ common/include/Makefile
+ common/protocol/Makefile
+ common/regions/Makefile
+ common/sparse/Makefile
+ common/utils/Makefile
+ docs/Makefile
+ include/Makefile
+ plugins/Makefile
+ plugins/curl/Makefile
+ plugins/data/Makefile
+ plugins/example1/Makefile
+ plugins/example2/Makefile
+ plugins/example3/Makefile
+ plugins/example4/Makefile
+ plugins/ext2/Makefile
+ plugins/file/Makefile
+ plugins/floppy/Makefile
+ plugins/full/Makefile
+ plugins/guestfs/Makefile
+ plugins/gzip/Makefile
+ plugins/iso/Makefile
+ plugins/libvirt/Makefile
+ plugins/linuxdisk/Makefile
+ plugins/lua/Makefile
+ plugins/memory/Makefile
+ plugins/nbd/Makefile
+ plugins/null/Makefile
+ plugins/ocaml/Makefile
+ plugins/partitioning/Makefile
+ plugins/pattern/Makefile
+ plugins/perl/Makefile
+ plugins/python/Makefile
+ plugins/random/Makefile
+ plugins/ruby/Makefile
+ plugins/rust/Cargo.toml
+ plugins/rust/Makefile
+ plugins/sh/Makefile
+ plugins/ssh/Makefile
+ plugins/split/Makefile
+ plugins/streaming/Makefile
+ plugins/tar/Makefile
+ plugins/tcl/Makefile
+ plugins/vddk/Makefile
+ plugins/zero/Makefile
+ filters/Makefile
+ filters/blocksize/Makefile
+ filters/cache/Makefile
+ filters/cow/Makefile
+ filters/delay/Makefile
+ filters/error/Makefile
+ filters/fua/Makefile
+ filters/log/Makefile
+ filters/noextents/Makefile
+ filters/nozero/Makefile
+ filters/offset/Makefile
+ filters/partition/Makefile
+ filters/rate/Makefile
+ filters/readahead/Makefile
+ filters/truncate/Makefile
+ filters/xz/Makefile
+ fuzzing/Makefile
+ server/Makefile
+ server/nbdkit.pc
+ tests/functions.sh
+ tests/Makefile
+ valgrind/Makefile])
+
+AC_OUTPUT
+
+dnl Summary.
+echo
+echo
+echo "----------------------------------------------------------------------"
+echo "Thank you for downloading $PACKAGE_STRING"
+echo
+echo "This is how we have configured the optional components for you today:"
+echo
+
+feature ()
+{
+ echo -n " $1"
+ shift
+ if $@; then echo "yes"; else echo "no"; fi
+}
+
+echo "Optional server features:"
+echo
+feature "bash-completion ........................ " \
+ test "x$HAVE_BASH_COMPLETION_TRUE" = "x"
+feature "manual pages ........................... " \
+ test "x$HAVE_POD_TRUE" = "x"
+feature "SELinux ................................ " \
+ test "x$LIBSELINUX_LIBS" != "x"
+feature "TLS .................................... " \
+ test "x$GNUTLS_LIBS" != "x"
+
+echo
+echo "Optional plugins:"
+echo
+feature "curl ................................... " \
+ test "x$HAVE_CURL_TRUE" = "x"
+feature "example4 ............................... " \
+ test "x$HAVE_PERL_TRUE" = "x"
+feature "ext2 ................................... " \
+ test "x$HAVE_EXT2_TRUE" = "x"
+feature "floppy ................................. " \
+ test "x$HAVE_ICONV_TRUE" = "x"
+feature "guestfs ................................ " \
+ test "x$HAVE_LIBGUESTFS_TRUE" = "x"
+feature "gzip ................................... " \
+ test "x$HAVE_ZLIB_TRUE" = "x"
+feature "iso .................................... " \
+ test "x$HAVE_ISO_TRUE" = "x"
+feature "libvirt ................................ " \
+ test "x$HAVE_LIBVIRT_TRUE" = "x"
+feature "ssh .................................... " \
+ test "x$HAVE_SSH_TRUE" = "x"
+feature "tar .................................... " \
+ test "x$HAVE_PERL_TRUE" = "x"
+feature "vddk ................................... " \
+ test "x$HAVE_VDDK_TRUE" = "x"
+
+
+echo
+echo "Languages:"
+echo
+feature "lua .................................... " \
+ test "x$HAVE_LUA_TRUE" = "x"
+feature "ocaml .................................. " \
+ test "x$HAVE_OCAML_TRUE" = "x"
+feature "perl ................................... " \
+ test "x$HAVE_PERL_TRUE" = "x"
+feature "python ................................. " \
+ test "x$HAVE_PYTHON_TRUE" = "x"
+feature "ruby ................................... " \
+ test "x$HAVE_RUBY_TRUE" = "x"
+feature "rust ................................... " \
+ test "x$HAVE_RUST_TRUE" = "x"
+feature "tcl .................................... " \
+ test "x$HAVE_TCL_TRUE" = "x"
+
+
+echo
+echo "Optional filters:"
+echo
+feature "xz ..................................... " \
+ test "x$HAVE_LIBLZMA_TRUE" = "x"
+
+echo
+echo "If any optional component is configured ‘no’ when you expected ‘yes’"
+echo "then you should check the preceding messages and README."
+echo
+echo "Please report bugs back to the mailing list:"
+echo "http://www.redhat.com/mailman/listinfo/libguestfs"
+echo
+echo "Next you should type 'make' to build the package,"
+echo "then 'make check' to run the tests."
--- /dev/null
+#! /bin/sh
+# depcomp - compile a program generating dependencies as side-effects
+
+scriptversion=2018-03-07.03; # UTC
+
+# Copyright (C) 1999-2018 Free Software Foundation, Inc.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# Originally written by Alexandre Oliva <oliva@dcc.unicamp.br>.
+
+case $1 in
+ '')
+ echo "$0: No command. Try '$0 --help' for more information." 1>&2
+ exit 1;
+ ;;
+ -h | --h*)
+ cat <<\EOF
+Usage: depcomp [--help] [--version] PROGRAM [ARGS]
+
+Run PROGRAMS ARGS to compile a file, generating dependencies
+as side-effects.
+
+Environment variables:
+ depmode Dependency tracking mode.
+ source Source file read by 'PROGRAMS ARGS'.
+ object Object file output by 'PROGRAMS ARGS'.
+ DEPDIR directory where to store dependencies.
+ depfile Dependency file to output.
+ tmpdepfile Temporary file to use when outputting dependencies.
+ libtool Whether libtool is used (yes/no).
+
+Report bugs to <bug-automake@gnu.org>.
+EOF
+ exit $?
+ ;;
+ -v | --v*)
+ echo "depcomp $scriptversion"
+ exit $?
+ ;;
+esac
+
+# Get the directory component of the given path, and save it in the
+# global variables '$dir'. Note that this directory component will
+# be either empty or ending with a '/' character. This is deliberate.
+set_dir_from ()
+{
+ case $1 in
+ */*) dir=`echo "$1" | sed -e 's|/[^/]*$|/|'`;;
+ *) dir=;;
+ esac
+}
+
+# Get the suffix-stripped basename of the given path, and save it the
+# global variable '$base'.
+set_base_from ()
+{
+ base=`echo "$1" | sed -e 's|^.*/||' -e 's/\.[^.]*$//'`
+}
+
+# If no dependency file was actually created by the compiler invocation,
+# we still have to create a dummy depfile, to avoid errors with the
+# Makefile "include basename.Plo" scheme.
+make_dummy_depfile ()
+{
+ echo "#dummy" > "$depfile"
+}
+
+# Factor out some common post-processing of the generated depfile.
+# Requires the auxiliary global variable '$tmpdepfile' to be set.
+aix_post_process_depfile ()
+{
+ # If the compiler actually managed to produce a dependency file,
+ # post-process it.
+ if test -f "$tmpdepfile"; then
+ # Each line is of the form 'foo.o: dependency.h'.
+ # Do two passes, one to just change these to
+ # $object: dependency.h
+ # and one to simply output
+ # dependency.h:
+ # which is needed to avoid the deleted-header problem.
+ { sed -e "s,^.*\.[$lower]*:,$object:," < "$tmpdepfile"
+ sed -e "s,^.*\.[$lower]*:[$tab ]*,," -e 's,$,:,' < "$tmpdepfile"
+ } > "$depfile"
+ rm -f "$tmpdepfile"
+ else
+ make_dummy_depfile
+ fi
+}
+
+# A tabulation character.
+tab=' '
+# A newline character.
+nl='
+'
+# Character ranges might be problematic outside the C locale.
+# These definitions help.
+upper=ABCDEFGHIJKLMNOPQRSTUVWXYZ
+lower=abcdefghijklmnopqrstuvwxyz
+digits=0123456789
+alpha=${upper}${lower}
+
+if test -z "$depmode" || test -z "$source" || test -z "$object"; then
+ echo "depcomp: Variables source, object and depmode must be set" 1>&2
+ exit 1
+fi
+
+# Dependencies for sub/bar.o or sub/bar.obj go into sub/.deps/bar.Po.
+depfile=${depfile-`echo "$object" |
+ sed 's|[^\\/]*$|'${DEPDIR-.deps}'/&|;s|\.\([^.]*\)$|.P\1|;s|Pobj$|Po|'`}
+tmpdepfile=${tmpdepfile-`echo "$depfile" | sed 's/\.\([^.]*\)$/.T\1/'`}
+
+rm -f "$tmpdepfile"
+
+# Avoid interferences from the environment.
+gccflag= dashmflag=
+
+# Some modes work just like other modes, but use different flags. We
+# parameterize here, but still list the modes in the big case below,
+# to make depend.m4 easier to write. Note that we *cannot* use a case
+# here, because this file can only contain one case statement.
+if test "$depmode" = hp; then
+ # HP compiler uses -M and no extra arg.
+ gccflag=-M
+ depmode=gcc
+fi
+
+if test "$depmode" = dashXmstdout; then
+ # This is just like dashmstdout with a different argument.
+ dashmflag=-xM
+ depmode=dashmstdout
+fi
+
+cygpath_u="cygpath -u -f -"
+if test "$depmode" = msvcmsys; then
+ # This is just like msvisualcpp but w/o cygpath translation.
+ # Just convert the backslash-escaped backslashes to single forward
+ # slashes to satisfy depend.m4
+ cygpath_u='sed s,\\\\,/,g'
+ depmode=msvisualcpp
+fi
+
+if test "$depmode" = msvc7msys; then
+ # This is just like msvc7 but w/o cygpath translation.
+ # Just convert the backslash-escaped backslashes to single forward
+ # slashes to satisfy depend.m4
+ cygpath_u='sed s,\\\\,/,g'
+ depmode=msvc7
+fi
+
+if test "$depmode" = xlc; then
+ # IBM C/C++ Compilers xlc/xlC can output gcc-like dependency information.
+ gccflag=-qmakedep=gcc,-MF
+ depmode=gcc
+fi
+
+case "$depmode" in
+gcc3)
+## gcc 3 implements dependency tracking that does exactly what
+## we want. Yay! Note: for some reason libtool 1.4 doesn't like
+## it if -MD -MP comes after the -MF stuff. Hmm.
+## Unfortunately, FreeBSD c89 acceptance of flags depends upon
+## the command line argument order; so add the flags where they
+## appear in depend2.am. Note that the slowdown incurred here
+## affects only configure: in makefiles, %FASTDEP% shortcuts this.
+ for arg
+ do
+ case $arg in
+ -c) set fnord "$@" -MT "$object" -MD -MP -MF "$tmpdepfile" "$arg" ;;
+ *) set fnord "$@" "$arg" ;;
+ esac
+ shift # fnord
+ shift # $arg
+ done
+ "$@"
+ stat=$?
+ if test $stat -ne 0; then
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+ mv "$tmpdepfile" "$depfile"
+ ;;
+
+gcc)
+## Note that this doesn't just cater to obsosete pre-3.x GCC compilers.
+## but also to in-use compilers like IMB xlc/xlC and the HP C compiler.
+## (see the conditional assignment to $gccflag above).
+## There are various ways to get dependency output from gcc. Here's
+## why we pick this rather obscure method:
+## - Don't want to use -MD because we'd like the dependencies to end
+## up in a subdir. Having to rename by hand is ugly.
+## (We might end up doing this anyway to support other compilers.)
+## - The DEPENDENCIES_OUTPUT environment variable makes gcc act like
+## -MM, not -M (despite what the docs say). Also, it might not be
+## supported by the other compilers which use the 'gcc' depmode.
+## - Using -M directly means running the compiler twice (even worse
+## than renaming).
+ if test -z "$gccflag"; then
+ gccflag=-MD,
+ fi
+ "$@" -Wp,"$gccflag$tmpdepfile"
+ stat=$?
+ if test $stat -ne 0; then
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+ rm -f "$depfile"
+ echo "$object : \\" > "$depfile"
+ # The second -e expression handles DOS-style file names with drive
+ # letters.
+ sed -e 's/^[^:]*: / /' \
+ -e 's/^['$alpha']:\/[^:]*: / /' < "$tmpdepfile" >> "$depfile"
+## This next piece of magic avoids the "deleted header file" problem.
+## The problem is that when a header file which appears in a .P file
+## is deleted, the dependency causes make to die (because there is
+## typically no way to rebuild the header). We avoid this by adding
+## dummy dependencies for each header file. Too bad gcc doesn't do
+## this for us directly.
+## Some versions of gcc put a space before the ':'. On the theory
+## that the space means something, we add a space to the output as
+## well. hp depmode also adds that space, but also prefixes the VPATH
+## to the object. Take care to not repeat it in the output.
+## Some versions of the HPUX 10.20 sed can't process this invocation
+## correctly. Breaking it into two sed invocations is a workaround.
+ tr ' ' "$nl" < "$tmpdepfile" \
+ | sed -e 's/^\\$//' -e '/^$/d' -e "s|.*$object$||" -e '/:$/d' \
+ | sed -e 's/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+hp)
+ # This case exists only to let depend.m4 do its work. It works by
+ # looking at the text of this script. This case will never be run,
+ # since it is checked for above.
+ exit 1
+ ;;
+
+sgi)
+ if test "$libtool" = yes; then
+ "$@" "-Wp,-MDupdate,$tmpdepfile"
+ else
+ "$@" -MDupdate "$tmpdepfile"
+ fi
+ stat=$?
+ if test $stat -ne 0; then
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+ rm -f "$depfile"
+
+ if test -f "$tmpdepfile"; then # yes, the sourcefile depend on other files
+ echo "$object : \\" > "$depfile"
+ # Clip off the initial element (the dependent). Don't try to be
+ # clever and replace this with sed code, as IRIX sed won't handle
+ # lines with more than a fixed number of characters (4096 in
+ # IRIX 6.2 sed, 8192 in IRIX 6.5). We also remove comment lines;
+ # the IRIX cc adds comments like '#:fec' to the end of the
+ # dependency line.
+ tr ' ' "$nl" < "$tmpdepfile" \
+ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' \
+ | tr "$nl" ' ' >> "$depfile"
+ echo >> "$depfile"
+ # The second pass generates a dummy entry for each header file.
+ tr ' ' "$nl" < "$tmpdepfile" \
+ | sed -e 's/^.*\.o://' -e 's/#.*$//' -e '/^$/ d' -e 's/$/:/' \
+ >> "$depfile"
+ else
+ make_dummy_depfile
+ fi
+ rm -f "$tmpdepfile"
+ ;;
+
+xlc)
+ # This case exists only to let depend.m4 do its work. It works by
+ # looking at the text of this script. This case will never be run,
+ # since it is checked for above.
+ exit 1
+ ;;
+
+aix)
+ # The C for AIX Compiler uses -M and outputs the dependencies
+ # in a .u file. In older versions, this file always lives in the
+ # current directory. Also, the AIX compiler puts '$object:' at the
+ # start of each line; $object doesn't have directory information.
+ # Version 6 uses the directory in both cases.
+ set_dir_from "$object"
+ set_base_from "$object"
+ if test "$libtool" = yes; then
+ tmpdepfile1=$dir$base.u
+ tmpdepfile2=$base.u
+ tmpdepfile3=$dir.libs/$base.u
+ "$@" -Wc,-M
+ else
+ tmpdepfile1=$dir$base.u
+ tmpdepfile2=$dir$base.u
+ tmpdepfile3=$dir$base.u
+ "$@" -M
+ fi
+ stat=$?
+ if test $stat -ne 0; then
+ rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+ exit $stat
+ fi
+
+ for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+ do
+ test -f "$tmpdepfile" && break
+ done
+ aix_post_process_depfile
+ ;;
+
+tcc)
+ # tcc (Tiny C Compiler) understand '-MD -MF file' since version 0.9.26
+ # FIXME: That version still under development at the moment of writing.
+ # Make that this statement remains true also for stable, released
+ # versions.
+ # It will wrap lines (doesn't matter whether long or short) with a
+ # trailing '\', as in:
+ #
+ # foo.o : \
+ # foo.c \
+ # foo.h \
+ #
+ # It will put a trailing '\' even on the last line, and will use leading
+ # spaces rather than leading tabs (at least since its commit 0394caf7
+ # "Emit spaces for -MD").
+ "$@" -MD -MF "$tmpdepfile"
+ stat=$?
+ if test $stat -ne 0; then
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+ rm -f "$depfile"
+ # Each non-empty line is of the form 'foo.o : \' or ' dep.h \'.
+ # We have to change lines of the first kind to '$object: \'.
+ sed -e "s|.*:|$object :|" < "$tmpdepfile" > "$depfile"
+ # And for each line of the second kind, we have to emit a 'dep.h:'
+ # dummy dependency, to avoid the deleted-header problem.
+ sed -n -e 's|^ *\(.*\) *\\$|\1:|p' < "$tmpdepfile" >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+## The order of this option in the case statement is important, since the
+## shell code in configure will try each of these formats in the order
+## listed in this file. A plain '-MD' option would be understood by many
+## compilers, so we must ensure this comes after the gcc and icc options.
+pgcc)
+ # Portland's C compiler understands '-MD'.
+ # Will always output deps to 'file.d' where file is the root name of the
+ # source file under compilation, even if file resides in a subdirectory.
+ # The object file name does not affect the name of the '.d' file.
+ # pgcc 10.2 will output
+ # foo.o: sub/foo.c sub/foo.h
+ # and will wrap long lines using '\' :
+ # foo.o: sub/foo.c ... \
+ # sub/foo.h ... \
+ # ...
+ set_dir_from "$object"
+ # Use the source, not the object, to determine the base name, since
+ # that's sadly what pgcc will do too.
+ set_base_from "$source"
+ tmpdepfile=$base.d
+
+ # For projects that build the same source file twice into different object
+ # files, the pgcc approach of using the *source* file root name can cause
+ # problems in parallel builds. Use a locking strategy to avoid stomping on
+ # the same $tmpdepfile.
+ lockdir=$base.d-lock
+ trap "
+ echo '$0: caught signal, cleaning up...' >&2
+ rmdir '$lockdir'
+ exit 1
+ " 1 2 13 15
+ numtries=100
+ i=$numtries
+ while test $i -gt 0; do
+ # mkdir is a portable test-and-set.
+ if mkdir "$lockdir" 2>/dev/null; then
+ # This process acquired the lock.
+ "$@" -MD
+ stat=$?
+ # Release the lock.
+ rmdir "$lockdir"
+ break
+ else
+ # If the lock is being held by a different process, wait
+ # until the winning process is done or we timeout.
+ while test -d "$lockdir" && test $i -gt 0; do
+ sleep 1
+ i=`expr $i - 1`
+ done
+ fi
+ i=`expr $i - 1`
+ done
+ trap - 1 2 13 15
+ if test $i -le 0; then
+ echo "$0: failed to acquire lock after $numtries attempts" >&2
+ echo "$0: check lockdir '$lockdir'" >&2
+ exit 1
+ fi
+
+ if test $stat -ne 0; then
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+ rm -f "$depfile"
+ # Each line is of the form `foo.o: dependent.h',
+ # or `foo.o: dep1.h dep2.h \', or ` dep3.h dep4.h \'.
+ # Do two passes, one to just change these to
+ # `$object: dependent.h' and one to simply `dependent.h:'.
+ sed "s,^[^:]*:,$object :," < "$tmpdepfile" > "$depfile"
+ # Some versions of the HPUX 10.20 sed can't process this invocation
+ # correctly. Breaking it into two sed invocations is a workaround.
+ sed 's,^[^:]*: \(.*\)$,\1,;s/^\\$//;/^$/d;/:$/d' < "$tmpdepfile" \
+ | sed -e 's/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+hp2)
+ # The "hp" stanza above does not work with aCC (C++) and HP's ia64
+ # compilers, which have integrated preprocessors. The correct option
+ # to use with these is +Maked; it writes dependencies to a file named
+ # 'foo.d', which lands next to the object file, wherever that
+ # happens to be.
+ # Much of this is similar to the tru64 case; see comments there.
+ set_dir_from "$object"
+ set_base_from "$object"
+ if test "$libtool" = yes; then
+ tmpdepfile1=$dir$base.d
+ tmpdepfile2=$dir.libs/$base.d
+ "$@" -Wc,+Maked
+ else
+ tmpdepfile1=$dir$base.d
+ tmpdepfile2=$dir$base.d
+ "$@" +Maked
+ fi
+ stat=$?
+ if test $stat -ne 0; then
+ rm -f "$tmpdepfile1" "$tmpdepfile2"
+ exit $stat
+ fi
+
+ for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2"
+ do
+ test -f "$tmpdepfile" && break
+ done
+ if test -f "$tmpdepfile"; then
+ sed -e "s,^.*\.[$lower]*:,$object:," "$tmpdepfile" > "$depfile"
+ # Add 'dependent.h:' lines.
+ sed -ne '2,${
+ s/^ *//
+ s/ \\*$//
+ s/$/:/
+ p
+ }' "$tmpdepfile" >> "$depfile"
+ else
+ make_dummy_depfile
+ fi
+ rm -f "$tmpdepfile" "$tmpdepfile2"
+ ;;
+
+tru64)
+ # The Tru64 compiler uses -MD to generate dependencies as a side
+ # effect. 'cc -MD -o foo.o ...' puts the dependencies into 'foo.o.d'.
+ # At least on Alpha/Redhat 6.1, Compaq CCC V6.2-504 seems to put
+ # dependencies in 'foo.d' instead, so we check for that too.
+ # Subdirectories are respected.
+ set_dir_from "$object"
+ set_base_from "$object"
+
+ if test "$libtool" = yes; then
+ # Libtool generates 2 separate objects for the 2 libraries. These
+ # two compilations output dependencies in $dir.libs/$base.o.d and
+ # in $dir$base.o.d. We have to check for both files, because
+ # one of the two compilations can be disabled. We should prefer
+ # $dir$base.o.d over $dir.libs/$base.o.d because the latter is
+ # automatically cleaned when .libs/ is deleted, while ignoring
+ # the former would cause a distcleancheck panic.
+ tmpdepfile1=$dir$base.o.d # libtool 1.5
+ tmpdepfile2=$dir.libs/$base.o.d # Likewise.
+ tmpdepfile3=$dir.libs/$base.d # Compaq CCC V6.2-504
+ "$@" -Wc,-MD
+ else
+ tmpdepfile1=$dir$base.d
+ tmpdepfile2=$dir$base.d
+ tmpdepfile3=$dir$base.d
+ "$@" -MD
+ fi
+
+ stat=$?
+ if test $stat -ne 0; then
+ rm -f "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+ exit $stat
+ fi
+
+ for tmpdepfile in "$tmpdepfile1" "$tmpdepfile2" "$tmpdepfile3"
+ do
+ test -f "$tmpdepfile" && break
+ done
+ # Same post-processing that is required for AIX mode.
+ aix_post_process_depfile
+ ;;
+
+msvc7)
+ if test "$libtool" = yes; then
+ showIncludes=-Wc,-showIncludes
+ else
+ showIncludes=-showIncludes
+ fi
+ "$@" $showIncludes > "$tmpdepfile"
+ stat=$?
+ grep -v '^Note: including file: ' "$tmpdepfile"
+ if test $stat -ne 0; then
+ rm -f "$tmpdepfile"
+ exit $stat
+ fi
+ rm -f "$depfile"
+ echo "$object : \\" > "$depfile"
+ # The first sed program below extracts the file names and escapes
+ # backslashes for cygpath. The second sed program outputs the file
+ # name when reading, but also accumulates all include files in the
+ # hold buffer in order to output them again at the end. This only
+ # works with sed implementations that can handle large buffers.
+ sed < "$tmpdepfile" -n '
+/^Note: including file: *\(.*\)/ {
+ s//\1/
+ s/\\/\\\\/g
+ p
+}' | $cygpath_u | sort -u | sed -n '
+s/ /\\ /g
+s/\(.*\)/'"$tab"'\1 \\/p
+s/.\(.*\) \\/\1:/
+H
+$ {
+ s/.*/'"$tab"'/
+ G
+ p
+}' >> "$depfile"
+ echo >> "$depfile" # make sure the fragment doesn't end with a backslash
+ rm -f "$tmpdepfile"
+ ;;
+
+msvc7msys)
+ # This case exists only to let depend.m4 do its work. It works by
+ # looking at the text of this script. This case will never be run,
+ # since it is checked for above.
+ exit 1
+ ;;
+
+#nosideeffect)
+ # This comment above is used by automake to tell side-effect
+ # dependency tracking mechanisms from slower ones.
+
+dashmstdout)
+ # Important note: in order to support this mode, a compiler *must*
+ # always write the preprocessed file to stdout, regardless of -o.
+ "$@" || exit $?
+
+ # Remove the call to Libtool.
+ if test "$libtool" = yes; then
+ while test "X$1" != 'X--mode=compile'; do
+ shift
+ done
+ shift
+ fi
+
+ # Remove '-o $object'.
+ IFS=" "
+ for arg
+ do
+ case $arg in
+ -o)
+ shift
+ ;;
+ $object)
+ shift
+ ;;
+ *)
+ set fnord "$@" "$arg"
+ shift # fnord
+ shift # $arg
+ ;;
+ esac
+ done
+
+ test -z "$dashmflag" && dashmflag=-M
+ # Require at least two characters before searching for ':'
+ # in the target name. This is to cope with DOS-style filenames:
+ # a dependency such as 'c:/foo/bar' could be seen as target 'c' otherwise.
+ "$@" $dashmflag |
+ sed "s|^[$tab ]*[^:$tab ][^:][^:]*:[$tab ]*|$object: |" > "$tmpdepfile"
+ rm -f "$depfile"
+ cat < "$tmpdepfile" > "$depfile"
+ # Some versions of the HPUX 10.20 sed can't process this sed invocation
+ # correctly. Breaking it into two sed invocations is a workaround.
+ tr ' ' "$nl" < "$tmpdepfile" \
+ | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
+ | sed -e 's/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+dashXmstdout)
+ # This case only exists to satisfy depend.m4. It is never actually
+ # run, as this mode is specially recognized in the preamble.
+ exit 1
+ ;;
+
+makedepend)
+ "$@" || exit $?
+ # Remove any Libtool call
+ if test "$libtool" = yes; then
+ while test "X$1" != 'X--mode=compile'; do
+ shift
+ done
+ shift
+ fi
+ # X makedepend
+ shift
+ cleared=no eat=no
+ for arg
+ do
+ case $cleared in
+ no)
+ set ""; shift
+ cleared=yes ;;
+ esac
+ if test $eat = yes; then
+ eat=no
+ continue
+ fi
+ case "$arg" in
+ -D*|-I*)
+ set fnord "$@" "$arg"; shift ;;
+ # Strip any option that makedepend may not understand. Remove
+ # the object too, otherwise makedepend will parse it as a source file.
+ -arch)
+ eat=yes ;;
+ -*|$object)
+ ;;
+ *)
+ set fnord "$@" "$arg"; shift ;;
+ esac
+ done
+ obj_suffix=`echo "$object" | sed 's/^.*\././'`
+ touch "$tmpdepfile"
+ ${MAKEDEPEND-makedepend} -o"$obj_suffix" -f"$tmpdepfile" "$@"
+ rm -f "$depfile"
+ # makedepend may prepend the VPATH from the source file name to the object.
+ # No need to regex-escape $object, excess matching of '.' is harmless.
+ sed "s|^.*\($object *:\)|\1|" "$tmpdepfile" > "$depfile"
+ # Some versions of the HPUX 10.20 sed can't process the last invocation
+ # correctly. Breaking it into two sed invocations is a workaround.
+ sed '1,2d' "$tmpdepfile" \
+ | tr ' ' "$nl" \
+ | sed -e 's/^\\$//' -e '/^$/d' -e '/:$/d' \
+ | sed -e 's/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile" "$tmpdepfile".bak
+ ;;
+
+cpp)
+ # Important note: in order to support this mode, a compiler *must*
+ # always write the preprocessed file to stdout.
+ "$@" || exit $?
+
+ # Remove the call to Libtool.
+ if test "$libtool" = yes; then
+ while test "X$1" != 'X--mode=compile'; do
+ shift
+ done
+ shift
+ fi
+
+ # Remove '-o $object'.
+ IFS=" "
+ for arg
+ do
+ case $arg in
+ -o)
+ shift
+ ;;
+ $object)
+ shift
+ ;;
+ *)
+ set fnord "$@" "$arg"
+ shift # fnord
+ shift # $arg
+ ;;
+ esac
+ done
+
+ "$@" -E \
+ | sed -n -e '/^# [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+ -e '/^#line [0-9][0-9]* "\([^"]*\)".*/ s:: \1 \\:p' \
+ | sed '$ s: \\$::' > "$tmpdepfile"
+ rm -f "$depfile"
+ echo "$object : \\" > "$depfile"
+ cat < "$tmpdepfile" >> "$depfile"
+ sed < "$tmpdepfile" '/^$/d;s/^ //;s/ \\$//;s/$/ :/' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+msvisualcpp)
+ # Important note: in order to support this mode, a compiler *must*
+ # always write the preprocessed file to stdout.
+ "$@" || exit $?
+
+ # Remove the call to Libtool.
+ if test "$libtool" = yes; then
+ while test "X$1" != 'X--mode=compile'; do
+ shift
+ done
+ shift
+ fi
+
+ IFS=" "
+ for arg
+ do
+ case "$arg" in
+ -o)
+ shift
+ ;;
+ $object)
+ shift
+ ;;
+ "-Gm"|"/Gm"|"-Gi"|"/Gi"|"-ZI"|"/ZI")
+ set fnord "$@"
+ shift
+ shift
+ ;;
+ *)
+ set fnord "$@" "$arg"
+ shift
+ shift
+ ;;
+ esac
+ done
+ "$@" -E 2>/dev/null |
+ sed -n '/^#line [0-9][0-9]* "\([^"]*\)"/ s::\1:p' | $cygpath_u | sort -u > "$tmpdepfile"
+ rm -f "$depfile"
+ echo "$object : \\" > "$depfile"
+ sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::'"$tab"'\1 \\:p' >> "$depfile"
+ echo "$tab" >> "$depfile"
+ sed < "$tmpdepfile" -n -e 's% %\\ %g' -e '/^\(.*\)$/ s::\1\::p' >> "$depfile"
+ rm -f "$tmpdepfile"
+ ;;
+
+msvcmsys)
+ # This case exists only to let depend.m4 do its work. It works by
+ # looking at the text of this script. This case will never be run,
+ # since it is checked for above.
+ exit 1
+ ;;
+
+none)
+ exec "$@"
+ ;;
+
+*)
+ echo "Unknown depmode $depmode" 1>&2
+ exit 1
+ ;;
+esac
+
+exit 0
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
--- /dev/null
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = \
+ make-links.sh \
+ nbdkit.pod \
+ nbdkit-captive.pod \
+ nbdkit-loop.pod \
+ nbdkit-probing.pod \
+ nbdkit-protocol.pod \
+ nbdkit-service.pod \
+ nbdkit-tls.pod \
+ nbdkit-plugin.pod \
+ nbdkit-filter.pod \
+ synopsis.txt
+
+if HAVE_POD
+
+man_MANS = \
+ nbdkit.1 \
+ nbdkit-captive.1 \
+ nbdkit-loop.1 \
+ nbdkit-probing.1 \
+ nbdkit-protocol.1 \
+ nbdkit-service.1 \
+ nbdkit-tls.1 \
+ nbdkit-plugin.3 \
+ nbdkit-filter.3
+CLEANFILES += $(man_MANS)
+
+nbdkit.1: nbdkit.pod plugin-links.pod lang-plugin-links.pod filter-links.pod \
+ synopsis.txt
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ --insert plugin-links.pod:__PLUGIN_LINKS__ \
+ --insert lang-plugin-links.pod:__LANG_PLUGIN_LINKS__ \
+ --insert filter-links.pod:__FILTER_LINKS__ \
+ --verbatim $(srcdir)/synopsis.txt:__SYNOPSIS__ \
+ $<
+
+nbdkit-captive.1: nbdkit-captive.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+nbdkit-loop.1: nbdkit-loop.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+nbdkit-probing.1: nbdkit-probing.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+nbdkit-protocol.1: nbdkit-protocol.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+nbdkit-service.1: nbdkit-service.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+nbdkit-tls.1: nbdkit-tls.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+nbdkit-plugin.3: nbdkit-plugin.pod plugin-links.pod lang-plugin-links.pod
+ $(PODWRAPPER) --section=3 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ --insert plugin-links.pod:__PLUGIN_LINKS__ \
+ --insert lang-plugin-links.pod:__LANG_PLUGIN_LINKS__ \
+ $<
+
+nbdkit-filter.3: nbdkit-filter.pod filter-links.pod
+ $(PODWRAPPER) --section=3 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ --insert filter-links.pod:__FILTER_LINKS__ \
+ $<
+
+endif HAVE_POD
+
+# All plugins.
+plugin-links.pod: $(top_srcdir)/configure.ac
+ rm -f $@ $@-t
+ $(srcdir)/make-links.sh plugin 1 $(non_lang_plugins) > $@-t
+ echo \; >> $@-t
+ $(srcdir)/make-links.sh plugin 3 $(lang_plugins) >> $@-t
+ mv $@-t $@
+
+# Only language plugins (in section 3).
+lang-plugin-links.pod: $(top_srcdir)/configure.ac
+ rm -f $@ $@-t
+ $(srcdir)/make-links.sh plugin 3 $(lang_plugins) >> $@-t
+ mv $@-t $@
+
+# All filters.
+filter-links.pod: $(top_srcdir)/configure.ac
+ rm -f $@ $@-t
+ $(srcdir)/make-links.sh filter 1 $(filters) > $@-t
+ mv $@-t $@
+
+DISTCLEANFILES = plugin-links.pod lang-plugin-links.pod filter-links.pod
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
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+ mostlyclean-libtool pdf pdf-am ps ps-am tags-am uninstall \
+ uninstall-am uninstall-man uninstall-man1 uninstall-man3
+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit.1: nbdkit.pod plugin-links.pod lang-plugin-links.pod filter-links.pod \
+@HAVE_POD_TRUE@ synopsis.txt
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ --insert plugin-links.pod:__PLUGIN_LINKS__ \
+@HAVE_POD_TRUE@ --insert lang-plugin-links.pod:__LANG_PLUGIN_LINKS__ \
+@HAVE_POD_TRUE@ --insert filter-links.pod:__FILTER_LINKS__ \
+@HAVE_POD_TRUE@ --verbatim $(srcdir)/synopsis.txt:__SYNOPSIS__ \
+@HAVE_POD_TRUE@ $<
+
+@HAVE_POD_TRUE@nbdkit-captive.1: nbdkit-captive.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+@HAVE_POD_TRUE@nbdkit-loop.1: nbdkit-loop.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+@HAVE_POD_TRUE@nbdkit-probing.1: nbdkit-probing.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+@HAVE_POD_TRUE@nbdkit-protocol.1: nbdkit-protocol.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+@HAVE_POD_TRUE@nbdkit-service.1: nbdkit-service.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+@HAVE_POD_TRUE@nbdkit-tls.1: nbdkit-tls.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+@HAVE_POD_TRUE@nbdkit-plugin.3: nbdkit-plugin.pod plugin-links.pod lang-plugin-links.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=3 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ --insert plugin-links.pod:__PLUGIN_LINKS__ \
+@HAVE_POD_TRUE@ --insert lang-plugin-links.pod:__LANG_PLUGIN_LINKS__ \
+@HAVE_POD_TRUE@ $<
+
+@HAVE_POD_TRUE@nbdkit-filter.3: nbdkit-filter.pod filter-links.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=3 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ --insert filter-links.pod:__FILTER_LINKS__ \
+@HAVE_POD_TRUE@ $<
+
+# All plugins.
+plugin-links.pod: $(top_srcdir)/configure.ac
+ rm -f $@ $@-t
+ $(srcdir)/make-links.sh plugin 1 $(non_lang_plugins) > $@-t
+ echo \; >> $@-t
+ $(srcdir)/make-links.sh plugin 3 $(lang_plugins) >> $@-t
+ mv $@-t $@
+
+# Only language plugins (in section 3).
+lang-plugin-links.pod: $(top_srcdir)/configure.ac
+ rm -f $@ $@-t
+ $(srcdir)/make-links.sh plugin 3 $(lang_plugins) >> $@-t
+ mv $@-t $@
+
+# All filters.
+filter-links.pod: $(top_srcdir)/configure.ac
+ rm -f $@ $@-t
+ $(srcdir)/make-links.sh filter 1 $(filters) > $@-t
+ mv $@-t $@
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Turn a list of plugins or filters into a comma-separated
+# list of POD links.
+# eg:
+# ./make-links.sh plugin 1 foo bar
+# --> L<nbdkit-foo-plugin(1)>, L<nbdkit-bar-plugin(1)>
+
+type="$1"
+section="$2"
+shift 2
+for (( i = 1; i <= $#; ++i )); do
+ echo -n "L<nbdkit-${!i}-$type($section)>"
+ if [ "$i" -lt "$#" ]; then echo -n , ; fi
+ echo
+done
--- /dev/null
+=head1 NAME
+
+nbdkit-captive - run nbdkit under another process and have it
+reliably cleaned up
+
+=head1 SYNOPSIS
+
+ nbdkit PLUGIN [...] --run "CMD ARGS ..."
+
+ nbdkit --exit-with-parent PLUGIN [...]
+
+=head1 DESCRIPTION
+
+You can run nbdkit under another process and have nbdkit reliably
+clean up. There are two techniques depending on whether you want
+nbdkit to start the other process (L</CAPTIVE NBDKIT>), or if you want
+the other process to start nbdkit (L</EXIT WITH PARENT>).
+
+=head1 CAPTIVE NBDKIT
+
+You can run nbdkit as a "captive process", using the I<--run> option.
+This means that nbdkit runs as long as (for example) L<qemu(1)> or
+L<guestfish(1)> is running. When those exit, nbdkit is killed.
+
+Some examples should make this clear.
+
+To run nbdkit captive under qemu:
+
+ nbdkit file disk.img --run 'qemu -drive file=$nbd,if=virtio'
+
+On the qemu command line, C<$nbd> is substituted automatically with
+the right NBD path so it can connect to nbdkit. When qemu exits,
+nbdkit is killed and cleaned up automatically.
+
+Running nbdkit captive under guestfish:
+
+ nbdkit file disk.img --run 'guestfish --format=raw -a $nbd -i'
+
+When guestfish exits, nbdkit is killed.
+
+The following shell variables are available in the I<--run> argument:
+
+=over 4
+
+=item C<$nbd>
+
+A URL that refers to the nbdkit port or socket.
+
+Note there is some magic here, since qemu and guestfish URLs have a
+different format, so nbdkit tries to guess which you are running. If
+the magic doesn't work, try using the variables below instead.
+
+=item C<$port>
+
+If E<ne> "", the port number that nbdkit is listening on.
+
+=item C<$unixsocket>
+
+If E<ne> "", the Unix domain socket that nbdkit is listening on.
+
+=back
+
+I<--run> implies I<--foreground>. It is not possible, and probably
+not desirable, to have nbdkit fork into the background when using
+I<--run>.
+
+Even when running captive, nbdkit still listens on the regular TCP/IP
+port, unless you specify the I<-p>/I<-U> options. If you want a truly
+private captive nbdkit, then you should create a private random
+Unix socket, like this:
+
+ nbdkit -U - plugin [args] --run '...'
+
+=head2 Copying data in and out of plugins with captive nbdkit
+
+Captive nbdkit + L<qemu-img(1)> can be used to copy data into and out
+of nbdkit plugins. For example L<nbdkit-example1-plugin(1)> contains
+an embedded disk image. To copy it out:
+
+ nbdkit -U - example1 --run 'qemu-img convert $nbd disk.img'
+
+If plugin requests have a high overhead (for example making HTTP
+requests to a remote server), adding L<nbdkit-readahead-filter(1)> may
+help performance:
+
+ nbdkit -U - --filter=readahead curl https://example.com/disk.img \
+ --run 'qemu-img convert $nbd disk.img'
+
+To overwrite a file inside an uncompressed tar file (the file being
+overwritten must be the same size), use L<nbdkit-tar-plugin(1)> like
+this:
+
+ nbdkit -U - tar tar=data.tar file=disk.img \
+ --run 'qemu-img convert -n disk.img $nbd'
+
+=head1 EXIT WITH PARENT
+
+The I<--exit-with-parent> option is almost the opposite of
+L</CAPTIVE NBDKIT> described in the previous section.
+
+Running nbdkit with this option, for example from a script:
+
+ nbdkit --exit-with-parent plugin ... &
+
+means that nbdkit will exit automatically if the parent program exits
+for any reason. This can be used to avoid complicated cleanups or
+orphaned nbdkit processes.
+
+I<--exit-with-parent> is incompatible with forking into the background
+(because when we fork into the background we lose track of the parent
+process). Therefore I<-f> / I<--foreground> is implied.
+
+This is currently implemented using a non-POSIX feature available in
+S<Linux ≥ 2.1.57> and S<FreeBSD ≥ 11.2>, so it won't work on other
+operating systems (patches welcome to make it work).
+
+If the parent application is multithreaded, then (in the Linux
+implementation) if the parent I<thread> exits, that will cause nbdkit
+to exit. Thus in multithreaded applications you usually want to run
+C<nbdkit --exit-with-parent> only from the main thread (unless you
+actually want nbdkit to exit with the thread, but that may not work
+reliably on all operating systems).
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<prctl(2)> (on Linux),
+L<procctl(2)> (on FreeBSD).
+
+=head1 AUTHORS
+
+Eric Blake
+
+Richard W.M. Jones
+
+Pino Toscano
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013-2018 Red Hat Inc.
--- /dev/null
+=head1 NAME
+
+nbdkit-filter - how to write nbdkit filters
+
+=head1 SYNOPSIS
+
+ #include <nbdkit-filter.h>
+
+ #define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+ static int
+ myfilter_config (nbdkit_next_config *next, void *nxdata,
+ const char *key, const char *value)
+ {
+ if (strcmp (key, "myparameter") == 0) {
+ // ...
+ return 0;
+ }
+ else {
+ // pass through to next filter or plugin
+ return next (nxdata, key, value);
+ }
+ }
+
+ static struct nbdkit_filter filter = {
+ .name = "filter",
+ .config = myfilter_config,
+ /* etc */
+ };
+
+ NBDKIT_REGISTER_FILTER(filter)
+
+When this has been compiled to a shared library, do:
+
+ nbdkit [--args ...] --filter=./myfilter.so plugin [key=value ...]
+
+When debugging, use the I<-fv> options:
+
+ nbdkit -fv --filter=./myfilter.so plugin [key=value ...]
+
+=head1 DESCRIPTION
+
+One or more nbdkit filters can be placed in front of an nbdkit plugin
+to modify the behaviour of the plugin. This manual page describes how
+to create an nbdkit filter.
+
+Filters can be used for example to limit requests to an offset/limit,
+add copy-on-write support, or inject delays or errors (for testing).
+
+Different filters can be stacked:
+
+ NBD ┌─────────┐ ┌─────────┐ ┌────────┐
+ client ───▶│ filter1 │───▶│ filter2 │── ─ ─ ──▶│ plugin │
+ request └─────────┘ └─────────┘ └────────┘
+
+Each filter intercepts plugin functions (see L<nbdkit-plugin(3)>) and
+can call the next filter or plugin in the chain, modifying parameters,
+calling before the filter function, in the middle or after. Filters
+may even short-cut the chain. As an example, to process its own
+parameters the filter can intercept the C<.config> method:
+
+ static int
+ myfilter_config (nbdkit_next_config *next, void *nxdata,
+ const char *key, const char *value)
+ {
+ if (strcmp (key, "myparameter") == 0) {
+ // ...
+ // here you would handle this key, value
+ // ...
+ return 0;
+ }
+ else {
+ // pass through to next filter or plugin
+ return next (nxdata, key, value);
+ }
+ }
+
+ static struct nbdkit_filter filter = {
+ // ...
+ .config = myfilter_config,
+ // ...
+ };
+
+The call to C<next (nxdata, ...)> calls the C<.config> method of the
+next filter or plugin in the chain. In the example above any
+instances of C<myparameter=...> on the command line would not be seen
+by the plugin.
+
+To see example filters:
+L<https://github.com/libguestfs/nbdkit/tree/master/filters>
+
+Filters must be written in C.
+
+Unlike plugins, where we provide a stable ABI guarantee that permits
+operation across version differences, filters can only be run with the
+same version of nbdkit that they were compiled with. The reason for
+this is two-fold: the filter API includes access to struct
+nbdkit_next_ops that is likely to change if new callbacks are added
+(old nbdkit cannot safely run new filters that access new methods);
+and if we added new methods then an old filter would not see them and
+so they would be passed unmodified through the filter, and in some
+cases that leads to data corruption (new nbdkit cannot safely run old
+filters unaware of new methods). Therefore, unlike plugins, you
+should not expect to distribute filters separately from nbdkit.
+
+=head1 C<#include E<lt>nbdkit-filter.hE<gt>>
+
+All filters should start by including this header file.
+
+=head1 C<#define THREAD_MODEL>
+
+All filters must define a thread model. See
+L<nbdkit-plugin(3)/THREADS> for a discussion of thread models.
+
+The final thread model is the smallest (ie. most serialized) out of
+all the filters and the plugin. Filters cannot alter the thread model
+to make it larger (more parallel).
+
+If possible filters should be be written to handle fully parallel
+requests (C<NBDKIT_THREAD_MODEL_PARALLEL>, even multiple requests
+issued in parallel on the same connection). This ensures that they
+don't slow down other filters or plugins.
+
+=head1 C<struct nbdkit_filter>
+
+All filters must define and register one C<struct nbdkit_filter>,
+which contains the name of the filter and pointers to plugin methods
+that the filter wants to intercept.
+
+ static struct nbdkit_filter filter = {
+ .name = "filter",
+ .longname = "My Filter",
+ .description = "This is my great filter for nbdkit",
+ .config = myfilter_config,
+ /* etc */
+ };
+
+ NBDKIT_REGISTER_FILTER(filter)
+
+The C<.name> field is the name of the filter. This is the only field
+which is required.
+
+=head1 NEXT PLUGIN
+
+F<nbdkit-filter.h> defines three function types
+(C<nbdkit_next_config>, C<nbdkit_next_config_complete>,
+C<nbdkit_next_open>) and a structure called C<struct nbdkit_next_ops>.
+These abstract the next plugin or filter in the chain. There is also
+an opaque pointer C<nxdata> which must be passed along when calling
+these functions.
+
+The filter’s C<.config>, C<.config_complete> and C<.open> methods may
+only call the next C<.config>, C<.config_complete> and C<.open> method
+in the chain (optionally for C<.config>).
+
+The filter’s C<.close> method is called when an old connection closed,
+and this has no C<next> parameter because it cannot be
+short-circuited.
+
+The filter’s other methods like C<.prepare>, C<.get_size>, C<.pread>
+etc ― always called in the context of a connection ― are passed a
+pointer to C<struct nbdkit_next_ops> which contains a comparable set
+of accessors to plugin methods that can be called during a connection.
+It is possible for a filter to issue (for example) extra read calls in
+response to a single C<.pwrite> call. Note that the semantics of the
+functions in C<struct nbdkit_next_ops> are slightly different from
+what a plugin implements: for example, when a plugin's C<.pread>
+returns -1 on error, the error value to advertise to the client is
+implicit (via the plugin calling C<nbdkit_set_error> or setting
+C<errno>), whereas C<next_ops-E<gt>pread> exposes this via an explicit
+parameter, allowing a filter to learn or modify this error if desired.
+
+You can modify parameters when you call the C<next> function. However
+be careful when modifying strings because for some methods
+(eg. C<.config>) the plugin may save the string pointer that you pass
+along. So you may have to ensure that the string is not freed for the
+lifetime of the server.
+
+Note that if your filter registers a callback but in that callback it
+doesn't call the C<next> function then the corresponding method in the
+plugin will never be called. In particular, your C<.open> method, if
+you have one, B<must> call the C<.next> method.
+
+=head1 CALLBACKS
+
+C<struct nbdkit_filter> has some static fields describing the filter
+and optional callback functions which can be used to intercept plugin
+methods.
+
+=head2 C<.name>
+
+ const char *name;
+
+This field (a string) is required, and B<must> contain only ASCII
+alphanumeric characters and be unique amongst all filters.
+
+=head2 C<.version>
+
+ const char *version;
+
+Filters may optionally set a version string which is displayed in help
+and debugging output.
+
+=head2 C<.longname>
+
+ const char *longname;
+
+An optional free text name of the filter. This field is used in error
+messages.
+
+=head2 C<.description>
+
+ const char *description;
+
+An optional multi-line description of the filter.
+
+=head2 C<.load>
+
+ void load (void);
+
+This is called once just after the filter is loaded into memory. You
+can use this to perform any global initialization needed by the
+filter.
+
+=head2 C<.unload>
+
+ void unload (void);
+
+This may be called once just before the filter is unloaded from
+memory. Note that it's not guaranteed that C<.unload> will always be
+called (eg. the server might be killed or segfault), so you should try
+to make the filter as robust as possible by not requiring cleanup.
+See also L<nbdkit-plugin(3)/SHUTDOWN>.
+
+=head2 C<.config>
+
+ int (*config) (nbdkit_next_config *next, void *nxdata,
+ const char *key, const char *value);
+
+This intercepts the plugin C<.config> method and can be used by the
+filter to parse its own command line parameters. You should try to
+make sure that command line parameter keys that the filter uses do not
+conflict with ones that could be used by a plugin.
+
+If there is an error, C<.config> should call C<nbdkit_error> with an
+error message and return C<-1>.
+
+=head2 C<.config_complete>
+
+ int (*config_complete) (nbdkit_next_config_complete *next, void *nxdata);
+
+This intercepts the plugin C<.config_complete> method and can be used
+to ensure that all parameters needed by the filter were supplied on
+the command line.
+
+If there is an error, C<.config_complete> should call C<nbdkit_error>
+with an error message and return C<-1>.
+
+=head2 C<.config_help>
+
+ const char *config_help;
+
+This optional multi-line help message should summarize any
+C<key=value> parameters that it takes. It does I<not> need to repeat
+what already appears in C<.description>.
+
+If the filter doesn't take any config parameters you should probably
+omit this.
+
+=head2 C<.open>
+
+ void * (*open) (nbdkit_next_open *next, void *nxdata,
+ int readonly);
+
+This is called when a new client connection is opened and can be used
+to allocate any per-connection data structures needed by the filter.
+The handle (which is not the same as the plugin handle) is passed back
+to other filter callbacks and could be freed in the C<.close>
+callback.
+
+Note that the handle is completely opaque to nbdkit, but it must not
+be NULL. If you don't need to use a handle, return
+C<NBDKIT_HANDLE_NOT_NEEDED> which is a static non-NULL pointer.
+
+If there is an error, C<.open> should call C<nbdkit_error> with an
+error message and return C<NULL>.
+
+=head2 C<.close>
+
+ void (*close) (void *handle);
+
+This is called when the client closes the connection. It should clean
+up any per-connection resources used by the filter.
+
+=head2 C<.prepare>
+
+=head2 C<.finalize>
+
+ int (*prepare) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+ int (*finalize) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+
+These two methods can be used to perform any necessary operations just
+after opening the connection (C<.prepare>) or just before closing the
+connection (C<.finalize>).
+
+For example if you need to scan the underlying disk to check for a
+partition table, you could do it in your C<.prepare> method (calling
+the plugin's C<.pread> method via C<next_ops>). Or if you need to
+cleanly update superblock data in the image on close you can do it in
+your C<.finalize> method (calling the plugin's C<.pwrite> method).
+Doing these things in the filter's C<.open> or C<.close> method is not
+possible.
+
+There is no C<next_ops-E<gt>prepare> or C<next_ops-E<gt>finalize>.
+Unlike other filter methods, prepare and finalize are not chained
+through the C<next_ops> structure. Instead the core nbdkit server
+calls the prepare and finalize methods of all filters. Prepare
+methods are called starting with the filter closest to the plugin and
+proceeding outwards. Finalize methods are called in the reverse order
+of prepare methods.
+
+If there is an error, both callbacks should call C<nbdkit_error> with
+an error message and return C<-1>.
+
+=head2 C<.get_size>
+
+ int64_t (*get_size) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+
+This intercepts the plugin C<.get_size> method and can be used to read
+or modify the apparent size of the block device that the NBD client
+will see.
+
+The returned size must be E<ge> 0. If there is an error, C<.get_size>
+should call C<nbdkit_error> with an error message and return C<-1>.
+If this function is called more than once for the same connection, it
+should return the same value; similarly, the filter may cache
+C<next_ops-E<gt>get_size> for a given connection rather than repeating
+calls.
+
+=head2 C<.can_write>
+
+=head2 C<.can_flush>
+
+=head2 C<.is_rotational>
+
+=head2 C<.can_trim>
+
+=head2 C<.can_zero>
+
+=head2 C<.can_extents>
+
+=head2 C<.can_fua>
+
+=head2 C<.can_multi_conn>
+
+ int (*can_write) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+ int (*can_flush) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+ int (*is_rotational) (struct nbdkit_next_ops *next_ops,
+ void *nxdata,
+ void *handle);
+ int (*can_trim) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+ int (*can_zero) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+ int (*can_extents) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+ int (*can_fua) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+ int (*can_multi_conn) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+
+These intercept the corresponding plugin methods, and control feature
+bits advertised to the client.
+
+Of note, the C<.can_zero> callback in the filter controls whether the
+server advertises zero support to the client, which is slightly
+different semantics than the plugin; that is,
+C<next_ops-E<gt>can_zero> always returns true for a plugin, even when
+the plugin's own C<.can_zero> callback returned false, because nbdkit
+implements a fallback to C<.pwrite> at the plugin layer.
+
+Remember that most of the feature check functions return merely a
+boolean success value, while C<.can_fua> has three success values.
+The difference between values may affect choices made in the filter:
+when splitting a write request that requested FUA from the client, if
+C<next_ops-E<gt>can_fua> returns C<NBDKIT_FUA_NATIVE>, then the filter
+should pass the FUA flag on to each sub-request; while if it is known
+that FUA is emulated by a flush because of a return of
+C<NBDKIT_FUA_EMULATE>, it is more efficient to only flush once after
+all sub-requests have completed (often by passing C<NBDKIT_FLAG_FUA>
+on to only the final sub-request, or by dropping the flag and ending
+with a direct call to C<next_ops-E<gt>flush>).
+
+If there is an error, the callback should call C<nbdkit_error> with an
+error message and return C<-1>. If these functions are called more
+than once for the same connection, they should return the same value;
+similarly, the filter may cache the results of each counterpart in
+C<next_ops> for a given connection rather than repeating calls.
+
+=head2 C<.pread>
+
+ int (*pread) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err);
+
+This intercepts the plugin C<.pread> method and can be used to read or
+modify data read by the plugin.
+
+The parameter C<flags> exists in case of future NBD protocol
+extensions; at this time, it will be 0 on input, and the filter should
+not pass any flags to C<next_ops-E<gt>pread>.
+
+If there is an error (including a short read which couldn't be
+recovered from), C<.pread> should call C<nbdkit_error> with an error
+message B<and> return -1 with C<err> set to the positive errno value
+to return to the client.
+
+=head2 C<.pwrite>
+
+ int (*pwrite) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle,
+ const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err);
+
+This intercepts the plugin C<.pwrite> method and can be used to modify
+data written by the plugin.
+
+This function will not be called if C<.can_write> returned false; in
+turn, the filter should not call C<next_ops-E<gt>pwrite> if
+C<next_ops-E<gt>can_write> did not return true.
+
+The parameter C<flags> may include C<NBDKIT_FLAG_FUA> on input based
+on the result of C<.can_fua>. In turn, the filter should only pass
+C<NBDKIT_FLAG_FUA> on to C<next_ops-E<gt>pwrite> if
+C<next_ops-E<gt>can_fua> returned a positive value.
+
+If there is an error (including a short write which couldn't be
+recovered from), C<.pwrite> should call C<nbdkit_error> with an error
+message B<and> return -1 with C<err> set to the positive errno value
+to return to the client.
+
+=head2 C<.flush>
+
+ int (*flush) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t flags, int *err);
+
+This intercepts the plugin C<.flush> method and can be used to modify
+flush requests.
+
+This function will not be called if C<.can_flush> returned false; in
+turn, the filter should not call C<next_ops-E<gt>flush> if
+C<next_ops-E<gt>can_flush> did not return true.
+
+The parameter C<flags> exists in case of future NBD protocol
+extensions; at this time, it will be 0 on input, and the filter should
+not pass any flags to C<next_ops-E<gt>flush>.
+
+If there is an error, C<.flush> should call C<nbdkit_error> with an
+error message B<and> return -1 with C<err> set to the positive errno
+value to return to the client.
+
+=head2 C<.trim>
+
+ int (*trim) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err);
+
+This intercepts the plugin C<.trim> method and can be used to modify
+trim requests.
+
+This function will not be called if C<.can_trim> returned false; in
+turn, the filter should not call C<next_ops-E<gt>trim> if
+C<next_ops-E<gt>can_trim> did not return true.
+
+The parameter C<flags> may include C<NBDKIT_FLAG_FUA> on input based
+on the result of C<.can_fua>. In turn, the filter should only pass
+C<NBDKIT_FLAG_FUA> on to C<next_ops-E<gt>trim> if
+C<next_ops-E<gt>can_fua> returned a positive value.
+
+If there is an error, C<.trim> should call C<nbdkit_error> with an
+error message B<and> return -1 with C<err> set to the positive errno
+value to return to the client.
+
+=head2 C<.zero>
+
+ int (*zero) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset, uint32_t flags,
+ int *err);
+
+This intercepts the plugin C<.zero> method and can be used to modify
+zero requests.
+
+This function will not be called if C<.can_zero> returned false; in
+turn, the filter should not call C<next_ops-E<gt>zero> if
+C<next_ops-E<gt>can_zero> did not return true.
+
+On input, the parameter C<flags> may include C<NBDKIT_FLAG_MAY_TRIM>
+unconditionally, and C<NBDKIT_FLAG_FUA> based on the result of
+C<.can_fua>. In turn, the filter may pass C<NBDKIT_FLAG_MAY_TRIM>
+unconditionally, but should only pass C<NBDKIT_FLAG_FUA> on to
+C<next_ops-E<gt>zero> if C<next_ops-E<gt>can_fua> returned a positive
+value.
+
+Note that unlike the plugin C<.zero> which is permitted to fail with
+C<EOPNOTSUPP> to force a fallback to C<.pwrite>, the function
+C<next_ops-E<gt>zero> will never fail with C<err> set to C<EOPNOTSUPP>
+because the fallback has already taken place.
+
+If there is an error, C<.zero> should call C<nbdkit_error> with an
+error message B<and> return -1 with C<err> set to the positive errno
+value to return to the client. The filter should never fail with
+C<EOPNOTSUPP> (while plugins have automatic fallback to C<.pwrite>,
+filters do not).
+
+=head2 C<.extents>
+
+ int (*extents) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset, uint32_t flags,
+ struct nbdkit_extents *extents,
+ int *err);
+
+This intercepts the plugin C<.extents> method and can be used to
+modify extent requests.
+
+This function will not be called if C<.can_extents> returned false; in
+turn, the filter should not call C<next_ops-E<gt>extents> if
+C<next_ops-E<gt>can_extents> did not return true.
+
+It is possible for filters to transform the extents list received back
+from the layer below. Without error checking it would look like this:
+
+ myfilter_extents (..., uint32_t count, uint64_t offset, ...)
+ {
+ size_t i;
+ struct nbdkit_extents *extents2;
+ struct nbdkit_extent e;
+ int64_t size;
+
+ size = next_ops->get_size (nxdata);
+ extents2 = nbdkit_extents_new (offset + shift, size - shift);
+ next_ops->extents (nxdata, count, offset + shift, flags, extents2, err);
+ for (i = 0; i < nbdkit_extents_count (extents2); ++i) {
+ e = nbdkit_get_extent (extents2, i);
+ e.offset -= shift;
+ nbdkit_add_extent (extents, e.offset, e.length, e.type);
+ }
+ nbdkit_extents_free (extents2);
+ }
+
+If there is an error, C<.extents> should call C<nbdkit_error> with an
+error message B<and> return -1 with C<err> set to the positive errno
+value to return to the client.
+
+=head3 Allocating and freeing nbdkit_extents list
+
+Two functions are provided to filters only for allocating and freeing
+the map:
+
+ struct nbdkit_extents *nbdkit_extents_new (uint64_t start, uint64_t end);
+
+Allocates and returns a new, empty extents list. The C<start>
+parameter is the start of the range described in the list, and the
+C<end> parameter is the offset of the byte beyond the end. Normally
+you would pass in C<offset> as the start and the size of the plugin as
+the end, but for filters which adjust offsets, they should pass in the
+adjusted offset.
+
+On error this function can return C<NULL>. In this case it calls
+C<nbdkit_error> and/or C<nbdkit_set_error> as required. C<errno> will
+be set to a suitable value.
+
+ void nbdkit_extents_free (struct nbdkit_extents *);
+
+Frees an existing extents list.
+
+=head3 Iterating over nbdkit_extents list
+
+Two functions are provided to filters only to iterate over the extents
+in order:
+
+ size_t nbdkit_extents_count (const struct nbdkit_extents *);
+
+Returns the number of extents in the list.
+
+ struct nbdkit_extent {
+ uint64_t offset;
+ uint64_t length;
+ uint32_t type;
+ };
+ struct nbdkit_extent nbdkit_get_extent (const struct nbdkit_extents *,
+ size_t i);
+
+Returns a copy of the C<i>'th extent.
+
+=head1 ERROR HANDLING
+
+If there is an error in the filter itself, the filter should call
+C<nbdkit_error> to report an error message. If the callback is
+involved in serving data, the explicit C<err> parameter determines the
+error code that will be sent to the client; other callbacks should
+return the appropriate error indication, eg. C<NULL> or C<-1>.
+
+C<nbdkit_error> has the following prototype and works like
+L<printf(3)>:
+
+ void nbdkit_error (const char *fs, ...);
+ void nbdkit_verror (const char *fs, va_list args);
+
+For convenience, C<nbdkit_error> preserves the value of C<errno>, and
+also supports the glibc extension of a single C<%m> in a format string
+expanding to C<strerror(errno)>, even on platforms that don't support
+that natively.
+
+=head1 DEBUGGING
+
+Run the server with I<-f> and I<-v> options so it doesn't fork and you
+can see debugging information:
+
+ nbdkit -fv --filter=./myfilter.so plugin [key=value [key=value [...]]]
+
+To print debugging information from within the filter, call
+C<nbdkit_debug>, which has the following prototype and works like
+L<printf(3)>:
+
+ void nbdkit_debug (const char *fs, ...);
+ void nbdkit_vdebug (const char *fs, va_list args);
+
+For convenience, C<nbdkit_debug> preserves the value of C<errno>, and
+also supports the glibc extension of a single C<%m> in a format string
+expanding to C<strerror(errno)>, even on platforms that don't support
+that natively. Note that C<nbdkit_debug> only prints things when the
+server is in verbose mode (I<-v> option).
+
+=head2 Debug Flags
+
+Debug Flags in filters work exactly the same way as plugins. See
+L<nbdkit-plugin(3)/Debug Flags>.
+
+=head1 INSTALLING THE FILTER
+
+The filter is a C<*.so> file and possibly a manual page. You can of
+course install the filter C<*.so> file wherever you want, and users
+will be able to use it by running:
+
+ nbdkit --filter=/path/to/filter.so plugin [args]
+
+However B<if> the shared library has a name of the form
+C<nbdkit-I<name>-filter.so> B<and if> the library is installed in the
+C<$filterdir> directory, then users can be run it by only typing:
+
+ nbdkit --filter=name plugin [args]
+
+The location of the C<$filterdir> directory is set when nbdkit is
+compiled and can be found by doing:
+
+ nbdkit --dump-config
+
+If using the pkg-config/pkgconf system then you can also find the
+filter directory at compile time by doing:
+
+ pkgconf nbdkit --variable=filterdir
+
+=head1 PKG-CONFIG/PKGCONF
+
+nbdkit provides a pkg-config/pkgconf file called C<nbdkit.pc> which
+should be installed on the correct path when the nbdkit development
+environment is installed. You can use this in autoconf
+F<configure.ac> scripts to test for the development environment:
+
+ PKG_CHECK_MODULES([NBDKIT], [nbdkit >= 1.2.3])
+
+The above will fail unless nbdkit E<ge> 1.2.3 and the header file is
+installed, and will set C<NBDKIT_CFLAGS> and C<NBDKIT_LIBS>
+appropriately for compiling filters.
+
+You can also run pkg-config/pkgconf directly, for example:
+
+ if ! pkgconf nbdkit --exists; then
+ echo "you must install the nbdkit development environment"
+ exit 1
+ fi
+
+You can also substitute the filterdir variable by doing:
+
+ PKG_CHECK_VAR([NBDKIT_FILTERDIR], [nbdkit], [filterdir])
+
+which defines C<$(NBDKIT_FILTERDIR)> in automake-generated Makefiles.
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>.
+
+Standard filters provided by nbdkit:
+
+__FILTER_LINKS__.
+
+=head1 AUTHORS
+
+Eric Blake
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013-2018 Red Hat Inc.
--- /dev/null
+=head1 NAME
+
+nbdkit-loop - use nbdkit with the Linux kernel client to create loop
+devices and loop mounts
+
+=head1 DESCRIPTION
+
+nbdkit (server) can be used with the Linux kernel nbd (client) in a
+loop mode allowing any of the plugins supported by nbdkit to be turned
+into Linux block devices.
+
+In addition to L<nbdkit(1)> itself, the main commands you will use
+are:
+
+=over 4
+
+=item nbd-client -b 512 localhost /dev/nbd0
+
+which attaches a locally running nbdkit instance to the kernel device
+F</dev/nbd0>. I<-b 512> can be omitted when using
+S<L<nbd-client(8)> E<ge> 3.19>.
+
+=item nbd-client -d /dev/nbd0
+
+which detaches F</dev/nbd0>, and:
+
+=item nbd-client -c /dev/nbd0
+
+which queries whether F</dev/nbd0> is attached or not.
+
+=item modprobe nbd
+
+which may be needed to load the nbd client kernel module.
+
+=back
+
+The L<nbd-client(8)> and L<modprobe(8)> commands must be run as root.
+
+=head2 Warning: Do not loop mount untrusted filesystems
+
+Untrusted filesystems and untrusted disk images should not be loop
+mounted because they could contain exploits that attack your host
+kernel. Use the tools from L<libguestfs(3)> instead since it safely
+isolates untrusted filesystems from the host.
+
+=head2 Loop mount a filesystem from a compressed file
+
+If you have a filesystem or disk image in xz-compressed format then
+you can use L<nbdkit-xz-filter(1)> and L<nbdkit-file-plugin(1)> to
+loop mount it as follows:
+
+ nbdkit --filter=xz file disk.xz
+ nbd-client -b 512 localhost /dev/nbd0
+ mount /dev/nbd0p1 /mnt
+
+=head2 Loop mount a filesystem from a web server
+
+You can use L<nbdkit-curl-plugin(1)> to loop mount a filesystem from a
+disk image on a web server:
+
+ nbdkit [--filter=xz] curl https://example.com/disk.img
+ nbd-client -b 512 localhost /dev/nbd0
+ mount /dev/nbd0p1 /mnt
+
+Use I<--filter=xz> if the remote image is XZ-compressed.
+
+=head2 Create a giant btrfs filesystem
+
+nbdkit is useful for testing the limits of Linux filesystems. Using
+L<nbdkit-memory-plugin(1)> you can create virtual disks stored in RAM
+with a virtual size up to S<2⁶³-1 bytes>, and then create filesystems
+on these:
+
+ nbdkit memory $(( 2**63 - 1 ))
+ nbd-client -b 512 localhost /dev/nbd0
+
+Partition the device using GPT, creating a single partition with all
+default settings:
+
+ gdisk /dev/nbd0
+
+Make a btrfs filesystem on the disk and mount it:
+
+ mkfs.btrfs -K /dev/nbd0p1
+ mount /dev/nbd0p1 /mnt
+
+=head2 Inject errors into Linux devices
+
+Using L<nbdkit-error-filter(1)> you can see how Linux devices react to
+errors:
+
+ nbdkit --filter=error \
+ memory size=64M \
+ error-rate=100% error-file=/tmp/inject
+ nbd-client -b 512 localhost /dev/nbd0
+ mkfs -t ext4 /dev/nbd0
+ mount /dev/nbd0 /mnt
+
+Inject errors by touching F</tmp/inject>, and stop injecting errors by
+removing this file.
+
+=head2 Write Linux block devices in shell script
+
+Using L<nbdkit-sh-plugin(3)> you can write custom Linux block devices
+in shell script for testing. For example the following shell script
+creates a disk which contains a bad sector:
+
+ #!/bin/bash -
+ case "$1" in
+ get_size) echo 64M ;;
+ pread)
+ if [ $4 -le 100000 ] && [ $(( $4+$3 )) -gt 100000 ]; then
+ echo EIO Bad block >&2
+ exit 1
+ else
+ dd if=/dev/zero count=$3 iflag=count_bytes
+ fi ;;
+ *) exit 2 ;;
+ esac
+
+Create a loop from this shell script using:
+
+ nbdkit sh ./bad-sector.sh
+ nbd-client -b 512 localhost /dev/nbd0
+
+You can then try running tests such as:
+
+ badblocks /dev/nbd0
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<loop(4)>,
+L<losetup(8)>,
+L<mount(8)>,
+L<nbd-client(8)>,
+L<modprobe(8)>,
+L<libguestfs(3)>, L<http://libguestfs.org>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013-2018 Red Hat Inc.
--- /dev/null
+=head1 NAME
+
+nbdkit-plugin - how to write nbdkit plugins
+
+=head1 SYNOPSIS
+
+ #define NBDKIT_API_VERSION 2
+
+ #include <nbdkit-plugin.h>
+
+ #define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+
+ static void *
+ myplugin_open (void)
+ {
+ /* create a handle ... */
+ return handle;
+ }
+
+ static struct nbdkit_plugin plugin = {
+ .name = "myplugin",
+ .open = myplugin_open,
+ .get_size = myplugin_get_size,
+ .pread = myplugin_pread,
+ .pwrite = myplugin_pwrite,
+ /* etc */
+ };
+
+ NBDKIT_REGISTER_PLUGIN(plugin)
+
+When this has been compiled to a shared library, do:
+
+ nbdkit [--args ...] ./myplugin.so [key=value ...]
+
+When debugging, use the I<-fv> options:
+
+ nbdkit -fv ./myplugin.so [key=value ...]
+
+=head1 DESCRIPTION
+
+An nbdkit plugin is a new source device which can be served using the
+Network Block Device (NBD) protocol. This manual page describes how
+to create an nbdkit plugin in C.
+
+To see example plugins:
+L<https://github.com/libguestfs/nbdkit/tree/master/plugins>
+
+Plugins written in C have an ABI guarantee: a plugin compiled against
+an older version of nbdkit will still work correctly when loaded with
+a newer nbdkit. We also try (but cannot guarantee) to support plugins
+compiled against a newer version of nbdkit when loaded with an older
+nbdkit, although the plugin may have reduced functionality if it
+depends on features only provided by newer nbdkit.
+
+For plugins written in C, we also provide an API guarantee: a plugin
+written against an older header will still compile unmodified with a
+newer nbdkit.
+
+The API guarantee does not always apply to plugins written in other
+(non-C) languages which may have to adapt to changes when recompiled
+against a newer nbdkit.
+
+To write plugins in other languages, see:
+__LANG_PLUGIN_LINKS__.
+
+=head1 C<#define NBDKIT_API_VERSION 2>
+
+Plugins must choose which API version they want to use, by defining
+NBDKIT_API_VERSION to a positive integer prior to including
+C<nbdkit-plugin.h> (or any other nbdkit header). The default version
+is 1 for backwards-compatibility with nbdkit v1.1.26 and earlier;
+however, it is recommended that new plugins be written to the maximum
+version (currently 2) as it enables more features and better
+interaction with nbdkit filters. Therefore, the rest of this document
+only covers the version 2 interface. A newer nbdkit will always
+support plugins written in C which were compiled against any prior API
+version.
+
+=head1 C<#include E<lt>nbdkit-plugin.hE<gt>>
+
+All plugins should start by including this header file, after
+optionally choosing an API version.
+
+=head1 C<#define THREAD_MODEL>
+
+All plugins must define a thread model. See L</THREADS> below for
+details. It is generally safe to use:
+
+ #define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+
+=head1 C<struct nbdkit_plugin>
+
+All plugins must define and register one C<struct nbdkit_plugin>,
+which contains the name of the plugin and pointers to callback
+functions.
+
+ static struct nbdkit_plugin plugin = {
+ .name = "myplugin",
+ .longname = "My Plugin",
+ .description = "This is my great plugin for nbdkit",
+ .open = myplugin_open,
+ .get_size = myplugin_get_size,
+ .pread = myplugin_pread,
+ .pwrite = myplugin_pwrite,
+ /* etc */
+ };
+
+ NBDKIT_REGISTER_PLUGIN(plugin)
+
+The C<.name> field is the name of the plugin.
+
+The callbacks are described below (see L</CALLBACKS>). Only C<.name>,
+C<.open>, C<.get_size> and C<.pread> are required. All other
+callbacks can be omitted. However almost all plugins should have a
+C<.close> callback. Most real-world plugins will also want to declare
+some of the other callbacks.
+
+The nbdkit server calls the callbacks in the following order over the
+lifetime of the plugin:
+
+=over 4
+
+=item C<.load>
+
+is called once just after the plugin is loaded into memory.
+
+=item C<.config> and C<.config_complete>
+
+C<.config> is called zero or more times during command line parsing.
+C<.config_complete> is called once after all configuration information
+has been passed to the plugin.
+
+Both are called after loading the plugin but before any connections
+are accepted.
+
+=item C<.open>
+
+A new client has connected.
+
+=item C<.can_write>, C<.get_size> and other option negotiation callbacks
+
+These are called during option negotiation with the client, but before
+any data is served. These callbacks may return different values
+across different C<.open> calls, but within a single connection, must
+always return the same value; other code in nbdkit may cache the
+per-connection value returned rather than using the callback a second
+time.
+
+=item C<.pread>, C<.pwrite> and other data serving callbacks
+
+After option negotiation has finished, these may be called to serve
+data. Depending on the thread model chosen, they might be called in
+parallel from multiple threads. The data serving callbacks include a
+flags argument; the results of the negotiation callbacks influence
+whether particular flags will ever be passed to a data callback.
+
+=item C<.close>
+
+The client has disconnected.
+
+=item C<.open> ... C<.close>
+
+The sequence C<.open> ... C<.close> can be called repeatedly over the
+lifetime of the plugin, and can be called in parallel (depending on
+the thread model).
+
+=item C<.unload>
+
+is called once just before the plugin is unloaded from memory.
+
+=back
+
+=head1 FLAGS
+
+The following flags are defined by nbdkit, and used in various data
+serving callbacks as follows:
+
+=over 4
+
+=item C<NBDKIT_FLAG_MAY_TRIM>
+
+This flag is used by the C<.zero> callback; there is no way to disable
+this flag, although a plugin that does not support trims as a way to
+write zeroes may ignore the flag without violating expected semantics.
+
+=item C<NBDKIT_FLAG_FUA>
+
+This flag represents Forced Unit Access semantics. It is used by the
+C<.pwrite>, C<.zero>, and C<.trim> callbacks to indicate that the
+plugin must not return a result until the action has landed in
+persistent storage. This flag will not be sent to the plugin unless
+C<.can_fua> is provided and returns C<NBDKIT_FUA_NATIVE>.
+
+=back
+
+The following defines are valid as successful return values for
+C<.can_fua>:
+
+=over 4
+
+=item C<NBDKIT_FUA_NONE>
+
+Forced Unit Access is not supported; the client must manually request
+a flush after writes have completed. The C<NBDKIT_FLAG_FUA> flag will
+not be passed to the plugin's write callbacks.
+
+=item C<NBDKIT_FUA_EMULATE>
+
+The client may request Forced Unit Access, but it is implemented by
+emulation, where nbdkit calls C<.flush> after a write operation; this
+is semantically correct, but may hurt performance as it tends to flush
+more data than just what the client requested. The C<NBDKIT_FLAG_FUA>
+flag will not be passed to the plugin's write callbacks.
+
+=item C<NBDKIT_FUA_NATIVE>
+
+The client may request Forced Unit Access, which results in the
+C<NBDKIT_FLAG_FUA> flag being passed to the plugin's write callbacks
+(C<.pwrite>, C<.trim>, and C<.zero>). When the flag is set, these
+callbacks must not return success until the client's request has
+landed in persistent storage.
+
+=back
+
+=head1 ERROR HANDLING
+
+If there is an error in the plugin, the plugin should call
+C<nbdkit_error> to report an error message; additionally, if the
+callback is involved in serving data, the plugin should call
+C<nbdkit_set_error> to influence the error code that will be sent to
+the client. These two functions can be called in either order. Then,
+the callback should return the appropriate error indication,
+eg. C<NULL> or C<-1>.
+
+If the call to C<nbdkit_set_error> is omitted while serving data, then
+the global variable C<errno> may be used. For plugins which have
+C<.errno_is_preserved == 1> the core code will use C<errno>. In
+plugins written in non-C languages, we usually cannot trust that
+C<errno> will not be overwritten when returning from that language to
+C. In that case, either the plugin must call C<nbdkit_set_error> or
+hard-coded C<EIO> is used.
+
+C<nbdkit_error> has the following prototype and works like
+L<printf(3)>:
+
+ void nbdkit_error (const char *fs, ...);
+ void nbdkit_verror (const char *fs, va_list args);
+
+For convenience, C<nbdkit_error> preserves the value of C<errno>, and
+also supports the glibc extension of a single C<%m> in a format string
+expanding to C<strerror(errno)>, even on platforms that don't support
+that natively.
+
+C<nbdkit_set_error> can be called at any time, but only has an impact
+during callbacks for serving data, and only when the callback returns
+an indication of failure. It has the following prototype:
+
+ void nbdkit_set_error (int err);
+
+=head1 FILENAMES AND PATHS
+
+The server usually (not always) changes directory to C</> before it
+starts serving connections. This means that any relative paths passed
+during configuration will not work when the server is running
+(example: S<C<nbdkit plugin.so disk.img>>).
+
+To avoid problems, prepend relative paths with the current directory
+before storing them in the handle. Or open files and store the file
+descriptor.
+
+=head2 C<nbdkit_absolute_path>
+
+ char *nbdkit_absolute_path (const char *filename);
+
+The utility function C<nbdkit_absolute_path> converts any path to an
+absolute path: if it is relative, then all this function does is
+prepend the current working directory to the path, with no extra
+checks.
+
+Note that this function works I<only> when used in the C<.config>, and
+C<.config_complete> callbacks.
+
+If conversion was not possible, this calls C<nbdkit_error> and returns
+C<NULL>. Note that this function does not check that the file exists.
+
+The returned string must be freed by the caller.
+
+=head2 C<nbdkit_realpath>
+
+ char *nbdkit_realpath (const char *filename);
+
+The utility function C<nbdkit_realpath> converts any path to an
+absolute path, resolving symlinks. Under the hood it uses the
+C<realpath> function, and thus it fails if the path does not exist,
+or it is not possible to access to any of the components of the path.
+
+Note that this function works I<only> when used in the C<.config>, and
+C<.config_complete> callbacks.
+
+If the path resolution was not possible, this calls C<nbdkit_error>
+and returns C<NULL>.
+
+The returned string must be freed by the caller.
+
+=head2 umask
+
+All plugins will see a L<umask(2)> of C<0022>.
+
+=head1 CALLBACKS
+
+=head2 C<.name>
+
+ const char *name;
+
+This field (a string) is required, and B<must> contain only ASCII
+alphanumeric characters and be unique amongst all plugins.
+
+=head2 C<.version>
+
+ const char *version;
+
+Plugins may optionally set a version string which is displayed in help
+and debugging output.
+
+=head2 C<.longname>
+
+ const char *longname;
+
+An optional free text name of the plugin. This field is used in error
+messages.
+
+=head2 C<.description>
+
+ const char *description;
+
+An optional multi-line description of the plugin.
+
+=head2 C<.load>
+
+ void load (void);
+
+This is called once just after the plugin is loaded into memory. You
+can use this to perform any global initialization needed by the
+plugin.
+
+=head2 C<.unload>
+
+ void unload (void);
+
+This may be called once just before the plugin is unloaded from
+memory. Note that it's not guaranteed that C<.unload> will always be
+called (eg. the server might be killed or segfault), so you should try
+to make the plugin as robust as possible by not requiring cleanup.
+See also L</SHUTDOWN> below.
+
+=head2 C<.dump_plugin>
+
+ void dump_plugin (void);
+
+This optional callback is called when the
+S<C<nbdkit plugin --dump-plugin>> command is used. It should print
+any additional informative C<key=value> fields to stdout as needed.
+Prefixing the keys with the name of the plugin will avoid conflicts.
+
+=head2 C<.config>
+
+ int config (const char *key, const char *value);
+
+On the nbdkit command line, after the plugin filename, come an
+optional list of C<key=value> arguments. These are passed to the
+plugin through this callback when the plugin is first loaded and
+before any connections are accepted.
+
+This callback may be called zero or more times.
+
+Both C<key> and C<value> parameters will be non-NULL. The strings are
+owned by nbdkit but will remain valid for the lifetime of the plugin,
+so the plugin does not need to copy them.
+
+The key will be a non-empty string beginning with an ASCII alphabetic
+character (C<A-Z> C<a-z>). The rest of the key must contain only
+ASCII alphanumeric plus period, underscore or dash characters (C<A-Z>
+C<a-z> C<0-9> C<.> C<_> C<->). The value may be an arbitrary string,
+including an empty string.
+
+The names of C<key>s accepted by plugins is up to the plugin, but you
+should probably look at other plugins and follow the same conventions.
+
+If the value is a relative path, then note that the server changes
+directory when it starts up. See L</FILENAMES AND PATHS> above.
+
+If the C<.config> callback is not provided by the plugin, and the user
+tries to specify any C<key=value> arguments, then nbdkit will exit
+with an error.
+
+If there is an error, C<.config> should call C<nbdkit_error> with an
+error message and return C<-1>.
+
+=head2 C<.magic_config_key>
+
+ const char *magic_config_key;
+
+This optional string can be used to set a "magic" key used when
+parsing plugin parameters. It affects how "bare parameters" (those
+which do not contain an C<=> character) are parsed on the command
+line.
+
+If C<magic_config_key != NULL> then any bare parameters are passed to
+the C<.config> method as: S<C<config (magic_config_key, argv[i]);>>.
+
+If C<magic_config_key> is not set then we behave as in nbdkit E<lt>
+1.7: If the first parameter on the command line is bare then it is
+passed to the C<.config> method as: S<C<config ("script", value);>>.
+Any other bare parameters give errors.
+
+=head2 C<.config_complete>
+
+ int config_complete (void);
+
+This optional callback is called after all the configuration has been
+passed to the plugin. It is a good place to do checks, for example
+that the user has passed the required parameters to the plugin.
+
+If there is an error, C<.config_complete> should call C<nbdkit_error>
+with an error message and return C<-1>.
+
+=head2 C<.config_help>
+
+ const char *config_help;
+
+This optional multi-line help message should summarize any
+C<key=value> parameters that it takes. It does I<not> need to repeat
+what already appears in C<.description>.
+
+If the plugin doesn't take any config parameters you should probably
+omit this.
+
+=head2 C<.open>
+
+ void *open (int readonly);
+
+This is called when a new client connects to the nbdkit server. The
+callback should allocate a handle and return it. This handle
+is passed back to other callbacks and could be freed in the C<.close>
+callback.
+
+Note that the handle is completely opaque to nbdkit, but it must not
+be NULL. If you don't need to use a handle, return
+C<NBDKIT_HANDLE_NOT_NEEDED> which is a static non-NULL pointer.
+
+The C<readonly> flag informs the plugin that the user requested a
+read-only connection using the I<-r> flag on the command line. Note
+that the plugin may I<additionally> force the connection to be
+readonly (even if this flag is false) by returning false from the
+C<.can_write> callback. So if your plugin can only serve read-only,
+you can ignore this parameter.
+
+If there is an error, C<.open> should call C<nbdkit_error> with an
+error message and return C<NULL>.
+
+=head2 C<.close>
+
+ void close (void *handle);
+
+This is called when the client closes the connection. It should clean
+up any per-connection resources.
+
+Note there is no way in the NBD protocol to communicate close errors
+back to the client, for example if your plugin calls L<close(2)> and
+you are checking for errors (as you should do). Therefore the best
+you can do is to log the error on the server. Well-behaved NBD
+clients I<should> try to flush the connection before it is closed and
+check for errors, but obviously this is outside the scope of nbdkit.
+
+=head2 C<.get_size>
+
+ int64_t get_size (void *handle);
+
+This is called during the option negotiation phase of the protocol
+to get the size (in bytes) of the block device being exported.
+
+The returned size must be E<ge> 0. If there is an error, C<.get_size>
+should call C<nbdkit_error> with an error message and return C<-1>.
+
+=head2 C<.can_write>
+
+ int can_write (void *handle);
+
+This is called during the option negotiation phase to find out if the
+handle supports writes.
+
+If there is an error, C<.can_write> should call C<nbdkit_error> with
+an error message and return C<-1>.
+
+This callback is not required. If omitted, then we return true iff a
+C<.pwrite> callback has been defined.
+
+=head2 C<.can_flush>
+
+ int can_flush (void *handle);
+
+This is called during the option negotiation phase to find out if the
+handle supports the flush-to-disk operation.
+
+If there is an error, C<.can_flush> should call C<nbdkit_error> with
+an error message and return C<-1>.
+
+This callback is not required. If omitted, then we return true iff a
+C<.flush> callback has been defined.
+
+=head2 C<.is_rotational>
+
+ int is_rotational (void *handle);
+
+This is called during the option negotiation phase to find out if the
+backing disk is a rotational medium (like a traditional hard disk) or
+not (like an SSD). If true, this may cause the client to reorder
+requests to make them more efficient for a slow rotating disk.
+
+If there is an error, C<.is_rotational> should call C<nbdkit_error>
+with an error message and return C<-1>.
+
+This callback is not required. If omitted, then we return false.
+
+=head2 C<.can_trim>
+
+ int can_trim (void *handle);
+
+This is called during the option negotiation phase to find out if the
+plugin supports the trim/discard operation for punching holes in the
+backing storage.
+
+If there is an error, C<.can_trim> should call C<nbdkit_error> with an
+error message and return C<-1>.
+
+This callback is not required. If omitted, then we return true iff a
+C<.trim> callback has been defined.
+
+=head2 C<.can_zero>
+
+ int can_zero (void *handle);
+
+This is called during the option negotiation phase to find out if the
+plugin wants the C<.zero> callback to be utilized. Support for
+writing zeroes is still advertised to the client (unless the nbdkit
+filter nozero is also used), so returning false merely serves as a way
+to avoid complicating the C<.zero> callback to have to fail with
+C<EOPNOTSUPP> on the connections where it will never be more efficient
+than using C<.pwrite> up front.
+
+If there is an error, C<.can_zero> should call C<nbdkit_error> with an
+error message and return C<-1>.
+
+This callback is not required. If omitted, then nbdkit always tries
+C<.zero> first if it is present, and gracefully falls back to
+C<.pwrite> if C<.zero> was absent or failed with C<EOPNOTSUPP>.
+
+=head2 C<.can_extents>
+
+ int can_extents (void *handle);
+
+This is called during the option negotiation phase to find out if the
+plugin supports detecting allocated (non-sparse) regions of the disk
+with the C<.extents> callback.
+
+If there is an error, C<.can_extents> should call C<nbdkit_error> with
+an error message and return C<-1>.
+
+This callback is not required. If omitted, then we return true iff a
+C<.extents> callback has been defined.
+
+=head2 C<.can_fua>
+
+ int can_fua (void *handle);
+
+This is called during the option negotiation phase to find out if the
+plugin supports the Forced Unit Access (FUA) flag on write, zero, and
+trim requests. If this returns C<NBDKIT_FUA_NONE>, FUA support is not
+advertised to the client; if this returns C<NBDKIT_FUA_EMULATE>, the
+C<.flush> callback must work (even if C<.can_flush> returns false),
+and FUA support is emulated by calling C<.flush> after any write
+operation; if this returns C<NBDKIT_FUA_NATIVE>, then the C<.pwrite>,
+C<.zero>, and C<.trim> callbacks (if implemented) must handle the flag
+C<NBDKIT_FLAG_FUA>, by not returning until that action has landed in
+persistent storage.
+
+If there is an error, C<.can_fua> should call C<nbdkit_error> with an
+error message and return C<-1>.
+
+This callback is not required unless a plugin wants to specifically
+handle FUA requests. If omitted, nbdkit checks whether C<.flush>
+exists, and behaves as if this function returns C<NBDKIT_FUA_NONE> or
+C<NBDKIT_FUA_EMULATE> as appropriate.
+
+=head2 C<.can_multi_conn>
+
+ int can_multi_conn (void *handle);
+
+This is called during the option negotiation phase to find out if the
+plugin is prepared to handle multiple connections from a single
+client. If the plugin sets this to true then a client may try to open
+multiple connections to the nbdkit server and spread requests across
+all connections to maximize parallelism. If the plugin sets it to
+false (which is the default) then well-behaved clients should only
+open a single connection, although we cannot control what clients do
+in practice.
+
+Specifically it means that either the plugin does not cache requests
+at all. Or if it does cache them then the effects of a C<.flush>
+request or setting C<NBDKIT_FLAG_FUA> on a request must be visible
+across all connections to the plugin before the plugin replies to that
+request.
+
+If you use Linux L<nbd-client(8)> option S<I<-C num>> with
+S<num E<gt> 1> then Linux checks this flag and will refuse to connect
+if C<.can_multi_conn> is false.
+
+If there is an error, C<.can_multi_conn> should call C<nbdkit_error>
+with an error message and return C<-1>.
+
+This callback is not required. If omitted, then we return false.
+
+=head2 C<.pread>
+
+ int pread (void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags);
+
+During the data serving phase, nbdkit calls this callback to read data
+from the backing store. C<count> bytes starting at C<offset> in the
+backing store should be read and copied into C<buf>. nbdkit takes
+care of all bounds- and sanity-checking, so the plugin does not need
+to worry about that.
+
+The parameter C<flags> exists in case of future NBD protocol
+extensions; at this time, it will be 0 on input.
+
+The callback must read the whole C<count> bytes if it can. The NBD
+protocol doesn't allow partial reads (instead, these would be errors).
+If the whole C<count> bytes was read, the callback should return C<0>
+to indicate there was I<no> error.
+
+If there is an error (including a short read which couldn't be
+recovered from), C<.pread> should call C<nbdkit_error> with an error
+message, and C<nbdkit_set_error> to record an appropriate error
+(unless C<errno> is sufficient), then return C<-1>.
+
+=head2 C<.pwrite>
+
+ int pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags);
+
+During the data serving phase, nbdkit calls this callback to write
+data to the backing store. C<count> bytes starting at C<offset> in
+the backing store should be written using the data in C<buf>. nbdkit
+takes care of all bounds- and sanity-checking, so the plugin does not
+need to worry about that.
+
+This function will not be called if C<.can_write> returned false. The
+parameter C<flags> may include C<NBDKIT_FLAG_FUA> on input based on
+the result of C<.can_fua>.
+
+The callback must write the whole C<count> bytes if it can. The NBD
+protocol doesn't allow partial writes (instead, these would be
+errors). If the whole C<count> bytes was written successfully, the
+callback should return C<0> to indicate there was I<no> error.
+
+If there is an error (including a short write which couldn't be
+recovered from), C<.pwrite> should call C<nbdkit_error> with an error
+message, and C<nbdkit_set_error> to record an appropriate error
+(unless C<errno> is sufficient), then return C<-1>.
+
+=head2 C<.flush>
+
+ int flush (void *handle, uint32_t flags);
+
+During the data serving phase, this callback is used to
+L<fdatasync(2)> the backing store, ie. to ensure it has been
+completely written to a permanent medium. If that is not possible
+then you can omit this callback.
+
+This function will not be called directly by the client if
+C<.can_flush> returned false; however, it may still be called by
+nbdkit if C<.can_fua> returned C<NBDKIT_FUA_EMULATE>. The parameter
+C<flags> exists in case of future NBD protocol extensions; at this
+time, it will be 0 on input.
+
+If there is an error, C<.flush> should call C<nbdkit_error> with an
+error message, and C<nbdkit_set_error> to record an appropriate error
+(unless C<errno> is sufficient), then return C<-1>.
+
+=head2 C<.trim>
+
+ int trim (void *handle, uint32_t count, uint64_t offset, uint32_t flags);
+
+During the data serving phase, this callback is used to "punch holes"
+in the backing store. If that is not possible then you can omit this
+callback.
+
+This function will not be called if C<.can_trim> returned false. The
+parameter C<flags> may include C<NBDKIT_FLAG_FUA> on input based on
+the result of C<.can_fua>.
+
+If there is an error, C<.trim> should call C<nbdkit_error> with an
+error message, and C<nbdkit_set_error> to record an appropriate error
+(unless C<errno> is sufficient), then return C<-1>.
+
+=head2 C<.zero>
+
+ int zero (void *handle, uint32_t count, uint64_t offset, uint32_t flags);
+
+During the data serving phase, this callback is used to write C<count>
+bytes of zeroes at C<offset> in the backing store.
+
+This function will not be called if C<.can_zero> returned false. On
+input, the parameter C<flags> may include C<NBDKIT_FLAG_MAY_TRIM>
+unconditionally, and C<NBDKIT_FLAG_FUA> based on the result of
+C<.can_fua>.
+
+If C<NBDKIT_FLAG_MAY_TRIM> is requested, the operation can punch a
+hole instead of writing actual zero bytes, but only if subsequent
+reads from the hole read as zeroes. If this callback is omitted, or
+if it fails with C<EOPNOTSUPP> (whether by C<nbdkit_set_error> or
+C<errno>), then C<.pwrite> will be used instead.
+
+The callback must write the whole C<count> bytes if it can. The NBD
+protocol doesn't allow partial writes (instead, these would be
+errors). If the whole C<count> bytes was written successfully, the
+callback should return C<0> to indicate there was I<no> error.
+
+If there is an error, C<.zero> should call C<nbdkit_error> with an
+error message, and C<nbdkit_set_error> to record an appropriate error
+(unless C<errno> is sufficient), then return C<-1>.
+
+=head2 C<.extents>
+
+ int extents (void *handle, uint32_t count, uint64_t offset,
+ uint32_t flags, struct nbdkit_extents *extents);
+
+During the data serving phase, this callback is used to detect
+allocated, sparse and zeroed regions of the disk.
+
+This function will not be called if C<.can_extents> returned false.
+nbdkit's default behaviour in this case is to treat the whole virtual
+disk as if it was allocated.
+
+The callback should detect and return the list of extents overlapping
+the range C<[offset...offset+count-1]>. The C<extents> parameter
+points to an opaque object which the callback should fill in by
+calling C<nbdkit_add_extent>. See L</Extents list> below.
+
+If there is an error, C<.extents> should call C<nbdkit_error> with an
+error message, and C<nbdkit_set_error> to record an appropriate error
+(unless C<errno> is sufficient), then return C<-1>.
+
+=head3 Extents list
+
+The plugin C<extents> callback is passed an opaque pointer C<struct
+nbdkit_extents *extents>. This structure represents a list of
+L<filesystem extents|https://en.wikipedia.org/wiki/Extent_(file_systems)>
+describing which areas of the disk are allocated, which are sparse
+(“holes”), and, if supported, which are zeroes.
+
+The C<extents> callback should scan the disk starting at C<offset> and
+call C<nbdkit_add_extent> for each extent found.
+
+Extents overlapping the range C<[offset...offset+count-1]> should be
+returned if possible. However nbdkit ignores extents E<lt> offset so
+the plugin may, if it is easier to implement, return all extent
+information for the whole disk. The plugin may return extents beyond
+the end of the range. It may also return extent information for less
+than the whole range, but it must return at least one extent
+overlapping C<offset>.
+
+The extents B<must> be added in ascending order, and B<must> be
+contiguous.
+
+The C<flags> parameter of the C<.extents> callback may contain the
+flag C<NBDKIT_FLAG_REQ_ONE>. This means that the client is only
+requesting information about the extent overlapping C<offset>. The
+plugin may ignore this flag, or as an optimization it may return just
+a single extent for C<offset>.
+
+ int nbdkit_add_extent (struct nbdkit_extents *extents,
+ uint64_t offset, uint64_t length, uint32_t type);
+
+Add an extent covering C<[offset...offset+length-1]> of one of
+the following four types:
+
+=over 4
+
+=item C<type = 0>
+
+A normal, allocated data extent.
+
+=item C<type = NBDKIT_EXTENT_HOLE|NBDKIT_EXTENT_ZERO>
+
+An unallocated extent, a.k.a. a “hole”, which reads back as zeroes.
+This is the normal type of hole applicable to most disks.
+
+=item C<type = NBDKIT_EXTENT_ZERO>
+
+An allocated extent which is known to contain only zeroes.
+
+=item C<type = NBDKIT_EXTENT_HOLE>
+
+An unallocated extent (hole) which does not read back as zeroes. Note
+this should only be used in specialized circumstances such as when
+writing a plugin for (or to emulate) certain SCSI drives which do not
+guarantee that trimmed blocks read back as zeroes.
+
+=back
+
+C<nbdkit_extent_add> returns C<0> on success or C<-1> on failure. On
+failure C<nbdkit_error> and/or C<nbdkit_set_error> has already been
+called. C<errno> will be set to a suitable value.
+
+=head1 THREADS
+
+Each nbdkit plugin must declare its thread safety model by defining
+the C<THREAD_MODEL> macro. (This macro is used by
+C<NBDKIT_REGISTER_PLUGIN>).
+
+The possible settings for C<THREAD_MODEL> are defined below.
+
+=over 4
+
+=item C<#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS>
+
+Only a single handle can be open at any time, and all requests happen
+from one thread.
+
+Note this means only one client can connect to the server at any time.
+If a second client tries to connect it will block waiting for the
+first client to close the connection.
+
+=item C<#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS>
+
+I<This is a safe default for most plugins>.
+
+Multiple handles can be open at the same time, but requests are
+serialized so that for the plugin as a whole only one
+open/read/write/close (etc) request will be in progress at any time.
+
+This is a useful setting if the library you are using is not
+thread-safe. However performance may not be good.
+
+=item C<#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS>
+
+Multiple handles can be open and multiple data requests can happen in
+parallel. However only one request will happen per handle at a time
+(but requests on different handles might happen concurrently).
+
+=item C<#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL>
+
+Multiple handles can be open and multiple data requests can happen in
+parallel (even on the same handle).
+
+All the libraries you use must be thread-safe and reentrant. You may
+also need to provide mutexes for fields in your connection handle.
+
+=back
+
+If none of the above thread models are suitable, then use
+C<NBDKIT_THREAD_MODEL_PARALLEL> and implement your own locking using
+C<pthread_mutex_t> etc.
+
+=head1 SHUTDOWN
+
+When nbdkit receives certain signals it will shut down (see
+L<nbdkit(1)/SIGNALS>). The server will wait for any currently running
+plugin callbacks to finish and also call the C<.unload> callback
+before unloading the plugin.
+
+Note that it's not guaranteed this can always happen (eg. the server
+might be killed by C<SIGKILL> or segfault).
+
+=head1 PARSING SIZE PARAMETERS
+
+Use the C<nbdkit_parse_size> utility function to parse human-readable
+size strings such as "100M" into the size in bytes.
+
+ int64_t nbdkit_parse_size (const char *str);
+
+C<str> can be a string in a number of common formats. The function
+returns the size in bytes. If there was an error, it returns C<-1>.
+
+=head1 PARSING BOOLEAN PARAMETERS
+
+Use the C<nbdkit_parse_bool> utility function to parse human-readable
+strings such as "on" into a boolean value.
+
+ int nbdkit_parse_bool (const char *str);
+
+C<str> can be a string containing a case-insensitive form of various
+common toggle values. The function returns 0 or 1 if the parse was
+successful. If there was an error, it returns C<-1>.
+
+=head1 READING PASSWORDS
+
+The C<nbdkit_read_password> utility function can be used to read
+passwords from config parameters:
+
+ int nbdkit_read_password (const char *value, char **password);
+
+For example:
+
+ char *password = NULL;
+
+ static int
+ myplugin_config (const char *key, const char *value)
+ {
+ ..
+ if (strcmp (key, "password") == 0) {
+ free (password);
+ if (nbdkit_read_password (value, &password) == -1)
+ return -1;
+ }
+ ..
+ }
+
+The C<password> result string is allocated by malloc, and so you may
+need to free it.
+
+This function recognizes several password formats. A password may be
+used directly on the command line, eg:
+
+ nbdkit myplugin password=mostsecret
+
+But more securely this function can also read a password
+interactively:
+
+ nbdkit myplugin password=-
+
+or from a file:
+
+ nbdkit myplugin password=+/tmp/secret
+
+(If the password begins with a C<-> or C<+> character then it must be
+passed in a file).
+
+=head1 DEBUGGING
+
+Run the server with I<-f> and I<-v> options so it doesn't fork and you
+can see debugging information:
+
+ nbdkit -fv ./myplugin.so [key=value [key=value [...]]]
+
+To print debugging information from within the plugin, call
+C<nbdkit_debug>, which has the following prototype and works like
+L<printf(3)>:
+
+ void nbdkit_debug (const char *fs, ...);
+ void nbdkit_vdebug (const char *fs, va_list args);
+
+For convenience, C<nbdkit_debug> preserves the value of C<errno>, and
+also supports the glibc extension of a single C<%m> in a format string
+expanding to C<strerror(errno)>, even on platforms that don't support
+that natively. Note that C<nbdkit_debug> only prints things when the
+server is in verbose mode (I<-v> option).
+
+=head2 Debug Flags
+
+The I<-v> option switches general debugging on or off, and this
+debugging should be used for messages which are useful for all users
+of your plugin.
+
+In cases where you want to enable specific extra debugging to track
+down bugs in plugins or filters — mainly for use by the plugin/filter
+developers themselves — you can define Debug Flags. These are global
+ints called C<myplugin_debug_*>:
+
+ int myplugin_debug_foo;
+ int myplugin_debug_bar;
+ ...
+ if (myplugin_debug_foo) {
+ nbdkit_debug ("lots of extra debugging about foo: ...");
+ }
+
+Debug Flags can be controlled on the command line using the I<-D> (or
+I<--debug>) option:
+
+ nbdkit -f -v -D myplugin.foo=1 -D myplugin.bar=2 myplugin [...]
+
+Note C<myplugin> is the name passed to C<.name> in the C<struct
+nbdkit_plugin>.
+
+You should only use this feature for debug settings. For general
+settings use ordinary plugin parameters. Debug Flags can only be C
+ints. They are not supported by non-C language plugins.
+
+=head1 INSTALLING THE PLUGIN
+
+The plugin is a C<*.so> file and possibly a manual page. You can of
+course install the plugin C<*.so> file wherever you want, and users
+will be able to use it by running:
+
+ nbdkit /path/to/plugin.so [args]
+
+However B<if> the shared library has a name of the form
+C<nbdkit-I<name>-plugin.so> B<and if> the library is installed in the
+C<$plugindir> directory, then users can be run it by only typing:
+
+ nbdkit name [args]
+
+The location of the C<$plugindir> directory is set when nbdkit is
+compiled and can be found by doing:
+
+ nbdkit --dump-config
+
+If using the pkg-config/pkgconf system then you can also find the
+plugin directory at compile time by doing:
+
+ pkgconf nbdkit --variable=plugindir
+
+=head1 PKG-CONFIG/PKGCONF
+
+nbdkit provides a pkg-config/pkgconf file called C<nbdkit.pc> which
+should be installed on the correct path when the nbdkit plugin
+development environment is installed. You can use this in autoconf
+F<configure.ac> scripts to test for the development environment:
+
+ PKG_CHECK_MODULES([NBDKIT], [nbdkit >= 1.2.3])
+
+The above will fail unless nbdkit E<ge> 1.2.3 and the header file is
+installed, and will set C<NBDKIT_CFLAGS> and C<NBDKIT_LIBS>
+appropriately for compiling plugins.
+
+You can also run pkg-config/pkgconf directly, for example:
+
+ if ! pkgconf nbdkit --exists; then
+ echo "you must install the nbdkit plugin development environment"
+ exit 1
+ fi
+
+You can also substitute the plugindir variable by doing:
+
+ PKG_CHECK_VAR([NBDKIT_PLUGINDIR], [nbdkit], [plugindir])
+
+which defines C<$(NBDKIT_PLUGINDIR)> in automake-generated Makefiles.
+
+=head1 WRITING PLUGINS IN OTHER PROGRAMMING LANGUAGES
+
+You can also write nbdkit plugins in Lua, OCaml, Perl, Python, Ruby,
+Rust, shell script or Tcl. Other programming languages may be offered
+in future.
+
+For more information see:
+__LANG_PLUGIN_LINKS__.
+
+Plugins written in scripting languages may also be installed in
+C<$plugindir>. These must be called C<nbdkit-I<name>-plugin> without
+any extension. They must be executable, and they must use the shebang
+header (see L<nbdkit(1)/Shebang scripts>). For example a plugin
+written in Perl called C<foo.pl> might be installed like this:
+
+ $ head -1 foo.pl
+ #!/usr/sbin/nbdkit perl
+
+ $ sudo install -m 0755 foo.pl $plugindir/nbdkit-foo-plugin
+
+and then users will be able to run it like this:
+
+ $ nbdkit foo [args ...]
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-filter(3)>.
+
+Standard plugins provided by nbdkit:
+
+__PLUGIN_LINKS__.
+
+=head1 AUTHORS
+
+Eric Blake
+
+Richard W.M. Jones
+
+Pino Toscano
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013-2018 Red Hat Inc.
--- /dev/null
+=head1 NAME
+
+nbdkit-probing - how to probe for nbdkit configuration and plugins
+
+=head1 SYNOPSIS
+
+ nbdkit --dump-config
+
+ nbdkit PLUGIN --dump-plugin
+
+=head1 DESCRIPTION
+
+You can query information about nbdkit and available plugins from the
+nbdkit binary.
+
+=head2 Query basic configuration
+
+ nbdkit --dump-config
+
+lists information about how nbdkit was configured. The most important
+fields in the output are the name of the directory where nbdkit looks
+for plugins and the version of nbdkit, eg:
+
+ plugindir=/usr/lib64/nbdkit/plugins
+ version=1.2.3
+
+=head2 Query information about a particular plugin
+
+ nbdkit pluginname --dump-plugin
+
+(where I<pluginname> is the name or full path of a plugin) will dump
+information about that plugin, eg:
+
+ $ nbdkit file --dump-plugin
+ path=/usr/lib64/nbdkit/plugins/nbdkit-file-plugin.so
+ name=file
+ version=1.2.3
+ api_version=1
+ struct_size=176
+ thread_model=serialize_requests
+ [etc]
+
+Plugins which ship with nbdkit usually have the same version as the
+corresponding nbdkit binary. The nbdkit binary will always be able to
+utilize plugins compiled against an older version of the header;
+however, newer plugins may not be fully supported by an older nbdkit
+binary (for example, a plugin compiled with C<NBDKIT_API_VERSION> of 2
+fails to load with an older nbdkit that only knows
+C<NBDKIT_API_VERSION> 1).
+
+=head2 Detect if a plugin is installed
+
+To find out if a plugin is installed (and working) in the plugin
+directory, use I<--dump-plugin> as above:
+
+ $ nbdkit foo --dump-plugin
+ nbdkit: error: cannot open plugin 'foo': /usr/lib64/nbdkit/plugins/nbdkit-foo-plugin.so: cannot open shared object file: No such file or directory
+ Use 'nbdkit --help' or read the nbdkit(1) manual page for documentation.
+
+Note it is better to test for the existence of plugins this way rather
+than just seeing if the F<.so> file exists, because nbdkit will load
+the plugin and check that all its dependencies can be satisfied, and
+also that plugin registration works.
+
+=head2 List all plugins in the plugin directory
+
+You could simply get the plugin directory (from I<--dump-config>) and
+list all files in this directory called F<nbdkit-*-plugin.so>.
+
+However a better test is to run I<--dump-plugin> (see above) on each
+one to check that it is working and all of its dependencies are
+installed. A complete shell script which does this is:
+
+ #!/bin/sh -
+ plugindir=`nbdkit --dump-config | grep ^plugindir= | sed 's/[^=]*=//'`
+ for f in $plugindir/nbdkit-*-plugin.so; do
+ if nbdkit "$f" --dump-plugin >/dev/null 2>&1; then
+ b=`echo "$f" | sed 's,.*/nbdkit-\(.*\)-plugin.so$,\1,'`
+ echo "$b ($f)"
+ fi
+ done
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+Richard W.M. Jones
+
+Pino Toscano
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013-2018 Red Hat Inc.
--- /dev/null
+=head1 NAME
+
+nbdkit - which parts of the NBD protocol nbdkit supports
+
+=head1 SYNOPSIS
+
+ nbdkit [-n|--newstyle] [-o|--oldstyle] [-e|--exportname EXPORTNAME]
+ [...]
+
+=head1 DESCRIPTION
+
+This page documents the level of support in nbdkit for various parts
+of the NBD protocol.
+
+=head1 NEW STYLE VS OLD STYLE PROTOCOL
+
+The NBD protocol comes in two incompatible forms that we call
+"oldstyle" and "newstyle". Unfortunately which protocol you should
+use depends on the client and cannot be known in advance, nor can it
+be negotiated from the server side.
+
+nbdkit defaults to the newstyle protocol since nbdkit E<ge> 1.3. The
+newstyle protocol is better in every respect than the oldstyle
+protocol and you should prefer it if possible.
+
+Use the I<-e> or I<--exportname> flag to set the optional exportname
+for the newstyle protocol.
+
+Use the I<-o> or I<--oldstyle> flag to force the oldstyle protocol.
+
+=head2 Common clients and the protocol they require
+
+ Client Protocol
+ ------------------------------------------------------------
+ qemu <= 2.5 without exportname oldstyle
+ qemu <= 2.5 with exportname newstyle
+ qemu >= 2.6 client can talk either protocol
+ nbd-client < 3.10 client can talk either protocol
+ nbd-client >= 3.10 newstyle
+ any TLS (encrypted) client newstyle
+ nbdkit nbd plugin client can talk either protocol
+
+=head2 Errors seen if using the wrong protocol
+
+If you use qemu E<le> 2.5 without the exportname field against a
+newstyle server, it will give the error:
+
+ Server requires an export name
+
+If you use qemu E<le> 2.5 with the exportname field against an
+oldstyle server, it will give the error:
+
+ Server does not support export names
+
+If you use the oldstyle protocol with nbd-client E<ge> 3.10, it will
+give the error:
+
+ Error: It looks like you're trying to connect to an oldstyle server.
+
+=head2 NBD protocol and port number
+
+Port 10809/tcp is reserved by IANA for the NBD protocol, but you can
+use nbdkit on any port or on Unix domain sockets.
+
+The NBD protocol specification claims that you should always use
+newstyle when using port 10809, and use oldstyle on all other ports,
+but this claim is not based on the reality of what NBD servers do, and
+nbdkit does not require or encourage this.
+
+=head1 NBD PROTOCOL FEATURES SUPPORTED BY NBDKIT
+
+=over 4
+
+=item newstyle protocol
+
+Supported in nbdkit E<ge> 1.1.12, and the default in nbdkit E<ge> 1.3.
+
+=item export names
+
+Supported in nbdkit E<ge> 1.1.12.
+
+nbdkit can advertise an export name, but ignores any export name sent
+by the client. nbdkit does I<not> support serving different data on
+different export names.
+
+=item C<NBD_FLAG_NO_ZEROES>
+
+Supported in nbdkit E<ge> 1.1.13.
+
+This protocol optimization avoids sending a useless block of zero
+bytes during protocol negotiation.
+
+=item C<NBD_CMD_WRITE_ZEROES>
+
+Supported in nbdkit E<ge> 1.1.13.
+
+=item TLS with X.509 certificates
+
+Supported in nbdkit E<ge> 1.1.15.
+
+=item TLS with Pre-Shared Keys (PSK)
+
+Supported in nbdkit E<ge> 1.4.0.
+
+=item C<NBD_OPT_GO>
+
+Supported in nbdkit E<ge> 1.5.3.
+
+This protocol enhancement allows the server to return errors when
+negotiating the export name.
+
+=item C<NBD_OPT_INFO>
+
+Supported in nbdkit E<ge> 1.9.3.
+
+This protocol enhancement allows a client to inspect details about
+the export without actually connecting.
+
+=item C<NBD_FLAG_CAN_MULTI_CONN>
+
+Supported in nbdkit E<ge> 1.9.9.
+
+=item Structured Replies
+
+Supported in nbdkit E<ge> 1.11.8.
+
+However we don’t expose the capability to send structured replies to
+plugins yet, nor do we send human-readable error messages using this
+facility.
+
+=item Metadata Querying
+
+Supported in nbdkit E<ge> 1.11.8.
+
+=item Block Status
+
+Supported in nbdkit E<ge> 1.11.10.
+
+Only C<base:allocation> (ie. querying which parts of an image are
+sparse) is supported.
+
+Sparse reads (using C<NBD_REPLY_TYPE_OFFSET_HOLE> are not directly
+supported, but a client can use block status to infer which portions
+of the export do not need to be read.
+
+=item C<NBD_FLAG_DF>
+
+Supported in nbdkit E<ge> 1.11.11.
+
+This protocol extension allows a client to force an all-or-none read
+when structured replies are in effect. However, the flag is a no-op
+until we extend the plugin API to allow a fragmented read in the first
+place.
+
+=item Resize Extension
+
+I<Not supported>.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<https://github.com/NetworkBlockDevice/nbd/blob/master/doc/proto.md>,
+L<https://nbd.sourceforge.io/>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+Richard W.M. Jones
+
+Pino Toscano
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013-2018 Red Hat Inc.
--- /dev/null
+=head1 NAME
+
+nbdkit-service - running nbdkit as a service, and systemd socket activation
+
+=head1 DESCRIPTION
+
+Most people start nbdkit from the command line or run it from another
+program (see L<nbdkit-captive(1)>. It is also possible to run nbdkit
+as a standalone service, which is what this page describes.
+
+=head1 SOCKET ACTIVATION
+
+nbdkit supports socket activation (sometimes called systemd socket
+activation). This is a simple protocol where instead of nbdkit itself
+opening the listening socket(s), the parent process (typically
+systemd) passes in pre-opened file descriptors. Socket activation
+lets you serve infrequent NBD requests using a superserver without
+needing nbdkit to be running the whole time.
+
+Socket activation is triggered when both the C<LISTEN_FDS> and
+C<LISTEN_PID> environment variables are set. In this mode using
+I<-i>, I<-p>, I<--run>, I<-s> or I<-U> flags on the command line is
+illegal and will cause an error. Also in this mode nbdkit does not
+fork into the background (ie. I<-f> is implied).
+
+=head2 Using socket activation with systemd
+
+To use nbdkit with socket activation from systemd, create a unit file
+ending in C<.socket> (eg. F</etc/systemd/system/nbdkit.socket>)
+containing:
+
+ [Unit]
+ Description=NBDKit Network Block Device server
+
+ [Socket]
+ ListenStream=10809
+
+ [Install]
+ WantedBy=sockets.target
+
+There are various formats for the C<ListenStream> key. See
+L<systemd.socket(5)> for more information.
+
+Also create a service unit (eg. F</etc/systemd/system/nbdkit.service>)
+containing:
+
+ [Service]
+ ExecStart=/usr/sbin/nbdkit file /path/to/serve
+
+For more information on systemd and socket activation, see
+L<http://0pointer.de/blog/projects/socket-activation.html>
+
+=head1 LOGGING
+
+Error messages from nbdkit can be sent to either standard error
+(I<--log=stderr>) or to the system log (I<--log=syslog>).
+
+The default, if I<--log> is not specified on the command line, is to
+send error messages to stderr, unless nbdkit forks into the background
+in which case they are sent to syslog.
+
+In detail:
+
+=over 4
+
+=item Messages go to standard error (stderr):
+
+When running from the command line in the foreground.
+
+When using systemd socket activation.
+
+Using I<--log=stderr> forces all messages to go to standard error.
+
+=item Messages go to the system log (syslog):
+
+When running from the command line, forked into the background.
+
+Using I<--log=syslog> forces all messages to go to the system log.
+
+=back
+
+Debug messages (I<-v>/I<--verbose>) always go to standard error and
+are never sent to the system log.
+
+=head1 ENVIRONMENT VARIABLES
+
+=over 4
+
+=item C<LISTEN_FDS>
+
+=item C<LISTEN_PID>
+
+If present in the environment when nbdkit starts up, these trigger
+L</SOCKET ACTIVATION>.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<systemd(1)>,
+L<systemd.socket(5)>,
+L<syslog(3)>,
+L<rsyslogd(8)>,
+L<journalctl(1)>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+Richard W.M. Jones
+
+Pino Toscano
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013-2018 Red Hat Inc.
--- /dev/null
+=head1 NAME
+
+nbdkit-tls - authentication and encryption of NBD connections
+(sometimes incorrectly called "SSL")
+
+=head1 SYNOPSIS
+
+ nbdkit [--tls=off|on|require] [--tls-certificates /path/to/certificates]
+ [--tls-psk /path/to/pskfile] [--tls-verify-peer]
+ PLUGIN [...]
+
+=head1 DESCRIPTION
+
+TLS (authentication and encryption, sometimes incorrectly called
+"SSL") is supported if nbdkit was compiled with GnuTLS. This allows
+the server to verify that the client is allowed access, and to encrypt
+the contents of the protocol in transit over the network.
+
+TLS can be disabled or enabled by specifying either I<--tls=off> or
+I<--tls=on>. With I<--tls=off>, if a client tries to use TLS to
+connect, it will be rejected by the server (in other words, as if the
+server doesn't support TLS).
+
+I<--tls=on> means that the client may choose to connect either with or
+without TLS.
+
+Because I<--tls=on> is subject to downgrade attacks where a malicious
+proxy pretends not to support TLS in order to force either the client
+or server to communicate in plaintext, you can also specify
+I<--tls=require>, where the server enables TLS B<and> rejects all
+non-TLS connection attempts.
+
+=head2 TLS with X.509 certificates
+
+When nbdkit starts up, it loads TLS certificates from some built-in
+paths, or from the directory specified by the I<--tls-certificates>
+option.
+
+Without I<--tls-certificates>, if nbdkit is started as a non-root user
+(note this does not include use of the I<-u> or I<-g> options), nbdkit
+looks in each of these paths in turn:
+
+ $HOME/.pki/nbdkit/
+ $HOME/.config/pki/nbdkit/
+
+Without I<--tls-certificates>, if nbdkit is started as root, nbkit
+looks in:
+
+ $sysconfdir/pki/nbdkit/
+
+(Use C<nbdkit --dump-config> and look at the
+C<root_tls_certificates_dir> setting to get the actual directory built
+into the binary.)
+
+You can override both directories above by using
+I<--tls-certificates /path/to/certificates>.
+
+In this directory, nbdkit expects to find several files:
+
+=over 4
+
+=item F<ca-cert.pem>
+
+The Certificate Authority certificate.
+
+=item F<server-cert.pem>
+
+The server certificate.
+
+=item F<server-key.pem>
+
+The server private key.
+
+=item F<ca-crl.pem>
+
+(Optional) The certificate revocation list.
+
+=back
+
+=head3 Setting up the Certificate Authority
+
+This step only needs to be done once per organization. It may be that
+your organization already has a CA.
+
+ $ certtool --generate-privkey > ca-key.pem
+ $ chmod 0600 ca-key.pem
+
+The F<ca-key.pem> file is the CA private key and is I<extremely>
+sensitive data. With possession of this key, anyone can create
+certificates pretending to be your organization!
+
+To create the CA certificate file:
+
+ $ cat > ca.info <<EOF
+ cn = Name of your organization
+ ca
+ cert_signing_key
+ EOF
+ $ certtool --generate-self-signed \
+ --load-privkey ca-key.pem \
+ --template ca.info \
+ --outfile ca-cert.pem
+
+=head3 Issuing a server certificate for the nbdkit server
+
+Each nbdkit server (or host) needs a secret key and certificate.
+
+ $ certtool --generate-privkey > server-key.pem
+ $ chmod 0600 server-key.pem
+
+The server key file is sensitive. Setting the mode to C<0600> helps
+to prevent other users on the same machine from reading it.
+
+The server DNS name (C<cn> below) must be the fully qualified hostname
+— and the only hostname — that the client connects to.
+
+ $ cat > server.info <<EOF
+ organization = Name of your organization
+ cn = nbd-server.example.com
+ tls_www_server
+ encryption_key
+ signing_key
+ EOF
+ $ certtool --generate-certificate \
+ --load-ca-certificate ca-cert.pem \
+ --load-ca-privkey ca-key.pem \
+ --load-privkey server-key.pem \
+ --template server.info \
+ --outfile server-cert.pem
+
+=head3 Issuing and checking client certificates
+
+B<Note:>
+You don't need to create client certificates unless you want to check
+and limit which clients can connect to nbdkit. nbdkit B<does not>
+check client certificates unless you specify the I<--tls-verify-peer>
+option on the command line.
+
+For each client you should generate a private key and a client
+certificate:
+
+ $ certtool --generate-privkey > client-key.pem
+ $ chmod 0600 client-key.pem
+
+The client key file is sensitive.
+
+The client DNS name (C<cn> below) is the client's name that nbdkit
+sees and checks.
+
+ $ cat > client.info <<EOF
+ country = US
+ state = New York
+ locality = New York
+ organization = Name of your organization
+ cn = client.example.com
+ tls_www_client
+ encryption_key
+ signing_key
+ EOF
+ $ certtool --generate-certificate \
+ --load-ca-certificate ca-cert.pem \
+ --load-ca-privkey ca-key.pem \
+ --load-privkey client-key.pem \
+ --template client.info \
+ --outfile client-cert.pem
+
+Client certificates do I<not> need to be present anywhere on the
+nbdkit host. You don't need to copy them into nbdkit's TLS
+certificates directory. The security comes from the fact that the
+client must present a client certificate signed by the Certificate
+Authority, and nbdkit can check this because it has the F<ca-cert.pem>
+file.
+
+To enable checking of client certificates, specify the
+I<--tls-verify-peer> option on the command line. Clients which don't
+present a valid certificate (eg. not signed, incorrect signature) are
+denied. Also denied are clients which present a valid certificate
+signed by another CA. Also denied are clients with certificates added
+to the certificate revocation list (F<ca-crl.pem>).
+
+=head2 TLS with Pre-Shared Keys (PSK)
+
+As a simpler alternative to TLS certificates, you may used pre-shared
+keys to authenticate clients.
+
+Create a PSK file containing one or more C<username:key> pairs. It is
+easiest to use L<psktool(1)> for this:
+
+ mkdir -m 0700 /tmp/keys
+ psktool -u rich -p /tmp/keys/keys.psk
+
+The PSK file contains the hex-encoded random keys in plaintext. Any
+client which can read this file will be able to connect to the server.
+
+Use the nbdkit I<--tls-psk> option to start the server:
+
+ nbdkit --tls=require --tls-psk=/tmp/keys/keys.psk -e / file disk.img
+
+This option overrides X.509 certificate authentication.
+
+Clients must supply one of the usernames in the PSK file and the
+corresponding key in order to connect. An example of connecting using
+L<qemu-img(1)> is:
+
+ qemu-img info \
+ --object tls-creds-psk,id=tls0,dir=/tmp/keys,username=rich,endpoint=client \
+ --image-opts \
+ file.driver=nbd,file.host=localhost,file.port=10809,file.tls-creds=tls0,file.export=/
+
+=head2 Default TLS behaviour
+
+If nbdkit was compiled without GnuTLS support, then TLS is disabled
+and TLS connections will be rejected (as if I<--tls=off> was specified
+on the command line). Also it is impossible to turn on TLS in this
+scenario. You can tell if nbdkit was compiled without GnuTLS support
+because C<nbdkit --dump-config> will contain C<tls=no>.
+
+If TLS certificates cannot be loaded either from the built-in path or
+from the directory specified by I<--tls-certificates>, then TLS
+defaults to disabled. Turning TLS on will give a warning
+(I<--tls=on>) or error (I<--tls=require>) about the missing
+certificates.
+
+If TLS certificates can be loaded from the built-in path or from the
+I<--tls-certificates> directory, then TLS will by default be enabled
+(like I<--tls=on>), but it is not required. Clients can choose
+whether or not to use TLS and whether or not to present certificates.
+
+TLS client certificates are I<not> checked by default unless you
+specify I<--tls-verify-peer>.
+
+If the I<--tls-psk> option is used then TLS is enabled (but I<not>
+required). To ensure that all clients are authorized you must use
+I<--tls=require>.
+
+Each of these defaults is insecure to some extent (including
+I<--tls=on> which could be subject to a downgrade attack), so if you
+expect TLS then it is best to specify the I<--tls> option that you
+require, and if you want to check client certificates, specify the
+I<--tls-verify-peer> option.
+
+=head2 Choice of TLS algorithms
+
+TLS has a bewildering choice of algorithms that can be used. To
+enable you to choose a default set of algorithms, there is a configure
+setting C<--with-tls-priority>. This defaults to C<NORMAL> which, to
+quote the GnuTLS documentation:
+
+=over 4
+
+"C<NORMAL> means all C<secure> ciphersuites. The 256-bit ciphers are
+included as a fallback only. The ciphers are sorted by security
+margin."
+
+=back
+
+You could also set the TLS priority so that it can be configured from
+a file at runtime:
+
+ ./configure --with-tls-priority=@SYSTEM
+
+means use the policy from F</etc/crypto-policies/config>.
+
+ ./configure --with-tls-priority=@NBDKIT,SYSTEM
+
+means use the policy from
+F</etc/crypto-policies/local.d/nbdkit.config> and fall back to
+F</etc/crypto-policies/config> if the first file does not exist.
+
+More information can be found in L<gnutls_priority_init(3)>.
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<gnutls_priority_init(3)>,
+L<psktool(1)>,
+L<https://github.com/NetworkBlockDevice/nbd/blob/master/doc/proto.md>,
+L<https://nbd.sourceforge.io/>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+Richard W.M. Jones
+
+Pino Toscano
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013-2018 Red Hat Inc.
--- /dev/null
+=head1 NAME
+
+nbdkit - toolkit for creating NBD servers
+
+=head1 SYNOPSIS
+
+__SYNOPSIS__
+
+=head1 DESCRIPTION
+
+Network Block Device (NBD) is a network protocol for accessing block
+devices over the network. Block devices are hard disks and things
+that behave like hard disks such as disk images and virtual machines.
+
+nbdkit is both a toolkit for creating NBD servers from
+“unconventional” sources, and the name of an NBD server. nbdkit ships
+with many plugins for performing common tasks like serving local
+files.
+
+=head2 Plugins and filters
+
+nbdkit is different from other NBD servers because you can easily
+create new Network Block Device sources by writing a few glue
+functions, possibly in C, or perhaps in a high level language like
+Perl or Python. The liberal licensing of nbdkit is meant to allow you
+to link nbdkit with proprietary libraries or to include nbdkit in
+proprietary code.
+
+If you want to write your own nbdkit plugin you should read
+L<nbdkit-plugin(3)>.
+
+nbdkit also has a concept of filters which can be layered on top of
+plugins. Several filters are provided with nbdkit and if you want to
+write your own you should read L<nbdkit-filter(3)>.
+
+=head1 EXAMPLES
+
+=head2 Basic file serving
+
+=over 4
+
+=item *
+
+Serve file F<disk.img> on port 10809 using L<nbdkit-file-plugin(1)>,
+and connect to it using L<guestfish(1)>:
+
+ nbdkit file disk.img
+ guestfish --rw --format=raw -a nbd://localhost
+
+=item *
+
+Serve file F<disk.img> on port 10809, requiring clients to use
+encrypted (TLS) connections:
+
+ nbdkit --tls=require file disk.img
+
+=back
+
+=head2 Other nbdkit plugins
+
+=over 4
+
+=item *
+
+Create a 1MB disk with one empty partition entirely on the command
+line using L<nbdkit-data-plugin(1)>:
+
+ nbdkit data size=1M \
+ data="@0x1b8 0xf8 0x21 0xdc 0xeb 0 0 0 0
+ 2 0 0x83 0x20 0x20 0 1 0 0 0 0xff 0x7
+ @0x1fe 0x55 0xaa"
+
+=item *
+
+Forward an NBD connection to a remote server over HTTPS or SSH using
+L<nbdkit-curl-plugin(1)> or L<nbdkit-ssh-plugin(1)>:
+
+ nbdkit -r curl https://example.com/disk.img
+
+ nbdkit ssh host=example.com /var/tmp/disk.img
+
+=item *
+
+Create a RAM disk using L<nbdkit-memory-plugin(1)>:
+
+ nbdkit memory size=64M
+
+=item *
+
+Create a floppy disk image containing files from a local directory
+using L<nbdkit-floppy-plugin(1)>:
+
+ nbdkit floppy dir/
+
+=back
+
+=head2 Combining plugins and filters
+
+=over 4
+
+=item *
+
+Serve only the first partition from compressed disk image
+F<disk.img.xz>, combining L<nbdkit-partition-filter(1)>,
+L<nbdkit-xz-filter(1)> and L<nbdkit-file-plugin(1)>.
+
+ nbdkit --filter=partition --filter=xz file disk.img.xz partition=1
+
+To understand this command line:
+
+ plugin name and plugin parameter
+ │
+ ┌───────┴──────┐
+ │ │
+ nbdkit --filter=partition --filter=xz file disk.img.xz partition=1
+ │ │ │
+ └──────────────┴────┬─────────────────────┘
+ │
+ filters and filter parameter
+
+=item *
+
+Create a scratch, empty nbdkit device and inject errors and delays,
+for testing clients, using L<nbdkit-memory-plugin(1)>,
+L<nbdkit-error-filter(1)> and L<nbdkit-delay-filter(1)>:
+
+ nbdkit --filter=error --filter=delay memory size=100M \
+ error-rate=10% rdelay=1 wdelay=1
+
+=back
+
+=head2 Writing plugins in scripting languages
+
+=over 4
+
+=item *
+
+Write a simple, custom plugin entirely on the command line in shell
+script using L<nbdkit-sh-plugin(3)>:
+
+ nbdkit sh - <<'EOF'
+ case "$1" in
+ get_size) echo 1M ;;
+ pread) dd if=/dev/zero count=$3 iflag=count_bytes ;;
+ *) exit 2 ;;
+ esac
+ EOF
+
+=back
+
+=head2 Display information
+
+Display information about nbdkit or a specific plugin:
+
+ nbdkit --help
+ nbdkit --version
+ nbdkit --dump-config
+ nbdkit example1 --help
+ nbdkit example1 --dump-plugin
+
+=head1 GLOBAL OPTIONS
+
+=over 4
+
+=item B<--help>
+
+Display brief command line usage information and exit.
+
+=item B<-D> PLUGIN.FLAG=N
+
+=item B<-D> FILTER.FLAG=N
+
+=item B<--debug> PLUGIN.FLAG=N
+
+=item B<--debug> FILTER.FLAG=N
+
+Set the plugin or filter Debug Flag called C<FLAG> to the integer
+value C<N>. See L<nbdkit-plugin(3)/Debug Flags>.
+
+=item B<--dump-config>
+
+Dump out the compile-time configuration values and exit.
+See L<nbdkit-probing(1)>.
+
+=item B<--dump-plugin>
+
+Dump out information about the plugin and exit.
+See L<nbdkit-probing(1)>.
+
+=item B<--exit-with-parent>
+
+If the parent process exits, we exit. This can be used to avoid
+complicated cleanup or orphaned nbdkit processes. There are some
+important caveats with this, see L<nbdkit-captive(1)/EXIT WITH PARENT>.
+
+An alternative to this is L<nbdkit-captive(1)/CAPTIVE NBDKIT>.
+
+This option implies I<--foreground>.
+
+=item B<-e> EXPORTNAME
+
+=item B<--export> EXPORTNAME
+
+=item B<--export-name> EXPORTNAME
+
+=item B<--exportname> EXPORTNAME
+
+Set the exportname.
+
+If not set, exportname C<""> (empty string) is used. Exportnames are
+not allowed with the oldstyle protocol.
+
+=item B<-f>
+
+=item B<--foreground>
+
+=item B<--no-fork>
+
+I<Don't> fork into the background.
+
+=item B<--filter> FILTER
+
+Add a filter before the plugin. This option may be given one or more
+times to stack filters in front of the plugin. They are processed in
+the order they appear on the command line. See L</FILTERS> and
+L<nbdkit-filter(3)>.
+
+=item B<-g> GROUP
+
+=item B<--group> GROUP
+
+Change group to C<GROUP> after starting up. A group name or numeric
+group ID can be used.
+
+The server needs sufficient permissions to be able to do this.
+Normally this would mean starting the server up as root.
+
+See also I<-u>.
+
+=item B<-i> IPADDR
+
+=item B<--ip-addr> IPADDR
+
+=item B<--ipaddr> IPADDR
+
+Listen on the specified interface. The default is to listen on all
+interfaces. See also I<-p>.
+
+=item B<--log=stderr>
+
+=item B<--log=syslog>
+
+Send error messages to either standard error (I<--log=stderr>) or to
+the system log (I<--log=syslog>).
+
+The default is to send error messages to stderr, unless nbdkit
+forks into the background in which case they are sent to syslog.
+
+For more details see L<nbdkit-service(1)/LOGGING>.
+
+=item B<-n>
+
+=item B<--new-style>
+
+=item B<--newstyle>
+
+Use the newstyle NBD protocol protocol. This is the default in nbdkit
+E<ge> 1.3. In earlier versions the default was oldstyle.
+See L<nbdkit-protocol(1)>.
+
+=item B<-o>
+
+=item B<--old-style>
+
+=item B<--oldstyle>
+
+Use the oldstyle NBD protocol. This I<was> the default in nbdkit
+E<le> 1.2, but now the default is newstyle. Note this is incompatible
+with newer features such as export names and TLS.
+See L<nbdkit-protocol(1)>.
+
+=item B<-P> PIDFILE
+
+=item B<--pid-file> PIDFILE
+
+=item B<--pidfile> PIDFILE
+
+Write C<PIDFILE> (containing the process ID of the server) after
+nbdkit becomes ready to accept connections.
+
+If the file already exists, it is overwritten. nbdkit I<does not>
+delete the file when it exits.
+
+=item B<-p> PORT
+
+=item B<--port> PORT
+
+Change the TCP/IP port number on which nbdkit serves requests.
+The default is C<10809>. See also I<-i>.
+
+=item B<-r>
+
+=item B<--read-only>
+
+=item B<--readonly>
+
+The export will be read-only. If a client writes, then it will get an
+error.
+
+Note that some plugins inherently don't support writes. With those
+plugins the I<-r> option is added implicitly.
+
+L<nbdkit-cow-filter(1)> can be placed over read-only plugins to
+provide copy-on-write (or "snapshot") functionality. If you are using
+qemu as a client then it also supports snapshots.
+
+=item B<--run> CMD
+
+Run nbdkit as a captive subprocess of C<CMD>. When C<CMD> exits,
+nbdkit is killed. See L<nbdkit-captive(1)/CAPTIVE NBDKIT>.
+
+This option implies I<--foreground>.
+
+=item B<-s>
+
+=item B<--single>
+
+=item B<--stdin>
+
+Don't fork. Handle a single NBD connection on stdin/stdout. After
+stdin closes, the server exits.
+
+You can use this option to run nbdkit from inetd or similar
+superservers; or just for testing; or if you want to run nbdkit in a
+non-conventional way. Note that if you want to run nbdkit from
+systemd, then it may be better to use
+L<nbdkit-service(1)/SOCKET ACTIVATION> instead of this option.
+
+This option implies I<--foreground>.
+
+=item B<--selinux-label> SOCKET-LABEL
+
+Apply the SELinux label C<SOCKET-LABEL> to the nbdkit listening
+socket.
+
+The common — perhaps only — use of this option is to allow libvirt
+guests which are using SELinux and sVirt confinement to access nbdkit
+Unix domain sockets:
+
+ nbdkit --selinux-label system_u:object_r:svirt_t:s0 ...
+
+=item B<-t> THREADS
+
+=item B<--threads> THREADS
+
+Set the number of threads to be used per connection, which in turn
+controls the number of outstanding requests that can be processed at
+once. Only matters for plugins with thread_model=parallel (where it
+defaults to 16). To force serialized behavior (useful if the client
+is not prepared for out-of-order responses), set this to 1.
+
+=item B<--tls=off>
+
+=item B<--tls=on>
+
+=item B<--tls=require>
+
+Disable, enable or require TLS (authentication and encryption
+support). See L<nbdkit-tls(1)>.
+
+=item B<--tls-certificates> /path/to/certificates
+
+Set the path to the TLS certificates directory. If not specified,
+some built-in paths are checked. See L<nbdkit-tls(1)> for more
+details.
+
+=item B<--tls-psk> /path/to/pskfile
+
+Set the path to the pre-shared keys (PSK) file. If used, this
+overrides certificate authentication. There is no built-in path. See
+L<nbdkit-tls(1)> for more details.
+
+=item B<--tls-verify-peer>
+
+Enables TLS client certificate verification. The default is I<not> to
+check the client's certificate.
+
+=item B<-U> SOCKET
+
+=item B<--unix> SOCKET
+
+=item B<-U ->
+
+=item B<--unix ->
+
+Accept connections on the Unix domain socket C<SOCKET> (which is a
+path).
+
+nbdkit creates this socket, but it will probably have incorrect
+permissions (too permissive). If it is a problem that some
+unauthorized user could connect to this socket between the time that
+nbdkit starts up and the authorized user connects, then put the socket
+into a directory that has restrictive permissions.
+
+nbdkit does B<not> delete the socket file when it exits. The caller
+should delete the socket file after use (else if you try to start
+nbdkit up again you will get an C<Address already in use> error).
+
+If the socket name is I<-> then nbdkit generates a randomly named
+private socket. This is useful with L<nbdkit-captive(1)/CAPTIVE NBDKIT>.
+
+=item B<-u> USER
+
+=item B<--user> USER
+
+Change user to C<USER> after starting up. A user name or numeric user
+ID can be used.
+
+The server needs sufficient permissions to be able to do this.
+Normally this would mean starting the server up as root.
+
+See also I<-g>.
+
+=item B<-v>
+
+=item B<--verbose>
+
+Enable verbose messages.
+
+It's a good idea to use I<-f> as well so the process does not fork
+into the background (but not required).
+
+=item B<-V>
+
+=item B<--version>
+
+Print the version number of nbdkit and exit.
+
+=back
+
+=head1 PLUGIN NAME
+
+You can give the full path to the plugin, like this:
+
+ nbdkit $libdir/nbdkit/plugins/nbdkit-file-plugin.so [...]
+
+but it is usually more convenient to use this equivalent syntax:
+
+ nbdkit file [...]
+
+C<$libdir> is set at compile time. To print it out, do:
+
+ nbdkit --dump-config
+
+=head1 PLUGIN CONFIGURATION
+
+After specifying the plugin name you can (optionally, it depends
+on the plugin) give plugin configuration on the command line in
+the form of C<key=value>. For example:
+
+ nbdkit file file=disk.img
+
+To list all the options supported by a plugin, do:
+
+ nbdkit --help file
+
+To dump information about a plugin, do:
+
+ nbdkit file --dump-plugin
+
+=head2 Magic parameters
+
+Some plugins declare a special "magic config key". This is a key
+which is assumed if no C<key=> part is present. For example:
+
+ nbdkit file disk.img
+
+is assumed to be C<file=disk.img> because the file plugin declares
+C<file> as its magic config key. There can be ambiguity in the
+parsing of magic config keys if the value might look like a
+C<key=value>. If there could be ambiguity then modify the value,
+eg. by prefixing it with C<./>
+
+There is also a special exception for plugins which do not declare a
+magic config key, but where the first plugin argument does not contain
+an C<'='> character: it is assumed to be C<script=value>. This is
+used by scripting language plugins:
+
+ nbdkit perl foo.pl [args...]
+
+has the same meaning as:
+
+ nbdkit perl script=foo.pl [args...]
+
+=head2 Shebang scripts
+
+You can use C<#!> to run nbdkit plugins written in most scripting
+languages. The file should be executable. For example:
+
+ #!/usr/sbin/nbdkit perl
+ sub open {
+ # etc
+ }
+
+(see L<nbdkit-perl-plugin(3)> for a full example).
+
+=head1 SIGNALS
+
+nbdkit responds to the following signals:
+
+=over 4
+
+=item C<SIGINT>
+
+=item C<SIGQUIT>
+
+=item C<SIGTERM>
+
+The server exits cleanly.
+
+=item C<SIGPIPE>
+
+This signal is ignored.
+
+=back
+
+=head1 ENVIRONMENT VARIABLES
+
+=over 4
+
+=item C<LISTEN_FDS>
+
+=item C<LISTEN_PID>
+
+If present in the environment when nbdkit starts up, these trigger
+L<nbdkit-service(1)/SOCKET ACTIVATION>.
+
+=back
+
+=head1 SEE ALSO
+
+=head2 Other topics
+
+L<nbdkit-captive(1)> — Run nbdkit under another process and have it
+reliably cleaned up.
+
+L<nbdkit-loop(1)> — Use nbdkit with the Linux kernel client to create
+loop devices and loop mounts.
+
+L<nbdkit-probing(1)> — How to probe for nbdkit configuration and plugins.
+
+L<nbdkit-protocol(1)> — Which parts of the NBD protocol nbdkit supports.
+
+L<nbdkit-service(1)> — Running nbdkit as a service, and systemd socket
+activation.
+
+L<nbdkit-tls(1)> — Authentication and encryption of NBD connections
+(sometimes incorrectly called "SSL").
+
+=head2 Plugins
+
+__PLUGIN_LINKS__.
+
+=head2 Filters
+
+__FILTER_LINKS__.
+
+=head2 For developers
+
+L<nbdkit-plugin(3)>,
+L<nbdkit-filter(3)>.
+
+=head2 Writing plugins in other programming languages
+
+__LANG_PLUGIN_LINKS__.
+
+=head2 NBD clients
+
+L<qemu(1)>,
+L<nbd-client(1)>,
+L<guestfish(1)>.
+
+=head2 nbdkit links
+
+L<http://github.com/libguestfs/nbdkit> — Source code.
+
+=head2 Other NBD servers
+
+L<qemu-nbd(1)>,
+L<nbd-server(1)>,
+L<https://bitbucket.org/hirofuchi/xnbd>.
+
+=head2 Documentation for the NBD protocol
+
+L<https://github.com/NetworkBlockDevice/nbd/blob/master/doc/proto.md>,
+L<https://nbd.sourceforge.io/>.
+
+=head2 Similar protocols
+
+L<https://en.wikipedia.org/wiki/iSCSI>,
+L<https://en.wikipedia.org/wiki/ATA_over_Ethernet>,
+L<https://en.wikipedia.org/wiki/Fibre_Channel_over_Ethernet>.
+
+=head2 Other manual pages of interest
+
+L<gnutls_priority_init(3)>,
+L<qemu-img(1)>,
+L<psktool(1)>,
+L<systemd.socket(5)>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+Richard W.M. Jones
+
+Yann E. MORIN
+
+Nir Soffer
+
+Pino Toscano
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013-2018 Red Hat Inc.
--- /dev/null
+nbdkit [-D|--debug PLUGIN|FILTER.FLAG=N]
+ [-e|--exportname EXPORTNAME] [--exit-with-parent]
+ [--filter FILTER ...] [-f|--foreground]
+ [-g|--group GROUP] [-i|--ipaddr IPADDR]
+ [--log stderr|syslog]
+ [-n|--newstyle] [-o|--oldstyle]
+ [-P|--pidfile PIDFILE]
+ [-p|--port PORT] [-r|--readonly]
+ [--run CMD] [-s|--single] [--selinux-label LABEL]
+ [-t|--threads THREADS]
+ [--tls off|on|require]
+ [--tls-certificates /path/to/certificates]
+ [--tls-psk /path/to/pskfile] [--tls-verify-peer]
+ [-U|--unix SOCKET] [-u|--user USER]
+ [-v|--verbose] [-V|--version]
+ PLUGIN [[KEY=]VALUE [KEY=VALUE [...]]]
+
+nbdkit --dump-config
+
+nbdkit PLUGIN --dump-plugin
+
+nbdkit --help
--- /dev/null
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = filters.syms
+
+SUBDIRS = $(filters)
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-blocksize-filter.pod
+
+filter_LTLIBRARIES = nbdkit-blocksize-filter.la
+
+nbdkit_blocksize_filter_la_SOURCES = \
+ blocksize.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+
+nbdkit_blocksize_filter_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include
+nbdkit_blocksize_filter_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_blocksize_filter_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/filters/filters.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-blocksize-filter.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-blocksize-filter.1: nbdkit-blocksize-filter.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
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+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
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+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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+
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+maintainer-clean-generic:
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+ uninstall-man1
+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-blocksize-filter.1: nbdkit-blocksize-filter.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdbool.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <errno.h>
+
+#include <nbdkit-filter.h>
+
+#include "minmax.h"
+#include "rounding.h"
+
+/* XXX See design comment in filters/cow/cow.c. */
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+
+#define BLOCKSIZE_MIN_LIMIT (64U * 1024)
+
+/* As long as we don't have parallel requests, we can reuse a common
+ * buffer for alignment purposes; size it to the maximum we allow for
+ * minblock. */
+static char bounce[BLOCKSIZE_MIN_LIMIT];
+static unsigned int minblock;
+static unsigned int maxdata;
+static unsigned int maxlen;
+
+static int
+blocksize_parse (const char *name, const char *s, unsigned int *v)
+{
+ int64_t size = nbdkit_parse_size (s);
+
+ if (size < 0)
+ return -1;
+ if (!size) {
+ nbdkit_error ("parameter '%s' must be non-zero if specified", name);
+ return -1;
+ }
+ if (UINT_MAX < size) {
+ nbdkit_error ("parameter '%s' too large", name);
+ return -1;
+ }
+ *v = size;
+ return 0;
+}
+
+/* Called for each key=value passed on the command line. */
+static int
+blocksize_config (nbdkit_next_config *next, void *nxdata,
+ const char *key, const char *value)
+{
+
+ if (strcmp (key, "minblock") == 0)
+ return blocksize_parse (key, value, &minblock);
+ if (strcmp (key, "maxdata") == 0)
+ return blocksize_parse (key, value, &maxdata);
+ if (strcmp (key, "maxlen") == 0)
+ return blocksize_parse (key, value, &maxlen);
+ return next (nxdata, key, value);
+}
+
+/* Check that limits are sane. */
+static int
+blocksize_config_complete (nbdkit_next_config_complete *next, void *nxdata)
+{
+ if (minblock) {
+ if (minblock & (minblock - 1)) {
+ nbdkit_error ("minblock must be a power of 2");
+ return -1;
+ }
+ if (minblock > BLOCKSIZE_MIN_LIMIT) {
+ nbdkit_error ("minblock must not exceed %u", BLOCKSIZE_MIN_LIMIT);
+ return -1;
+ }
+ }
+ else
+ minblock = 1;
+
+ if (maxdata) {
+ if (maxdata & (minblock - 1)) {
+ nbdkit_error ("maxdata must be a multiple of %u", minblock);
+ return -1;
+ }
+ }
+ else if (maxlen)
+ maxdata = MIN (maxlen, 64 * 1024 * 1024);
+ else
+ maxdata = 64 * 1024 * 1024;
+
+ if (maxlen) {
+ if (maxlen & (minblock - 1)) {
+ nbdkit_error ("maxlen must be a multiple of %u", minblock);
+ return -1;
+ }
+ }
+ else
+ maxlen = -minblock;
+
+ return next (nxdata);
+}
+
+#define blocksize_config_help \
+ "minblock=<SIZE> Minimum block size, power of 2 <= 64k (default 1).\n" \
+ "maxdata=<SIZE> Maximum size for read/write (default 64M).\n" \
+ "maxlen=<SIZE> Maximum size for trim/zero (default 4G-minblock)."
+
+static int
+blocksize_prepare (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ /* Early call to get_size to ensure it doesn't truncate to 0. */
+ int64_t size = next_ops->get_size (nxdata);
+
+ if (size == -1)
+ return -1;
+ if (size < minblock) {
+ nbdkit_error ("disk is too small for minblock size %u", minblock);
+ return -1;
+ }
+ /* TODO: cache per-connection FUA mode? */
+ return 0;
+}
+
+static int64_t
+blocksize_get_size (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ int64_t size = next_ops->get_size (nxdata);
+
+ return size == -1 ? size : size & ~(minblock - 1);
+}
+
+static int
+blocksize_can_multi_conn (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ /* Although we are serializing all requests anyway so this likely
+ * doesn't make a difference, return false because the bounce buffer
+ * is not consistent for flush.
+ */
+ return 0;
+}
+
+static int
+blocksize_pread (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, void *b, uint32_t count, uint64_t offs,
+ uint32_t flags, int *err)
+{
+ char *buf = b;
+ uint32_t keep;
+ uint32_t drop;
+
+ /* Unaligned head */
+ if (offs & (minblock - 1)) {
+ drop = offs & (minblock - 1);
+ keep = MIN (minblock - drop, count);
+ if (next_ops->pread (nxdata, bounce, minblock, offs - drop, flags,
+ err) == -1)
+ return -1;
+ memcpy (buf, bounce + drop, keep);
+ buf += keep;
+ offs += keep;
+ count -= keep;
+ }
+
+ /* Unaligned tail */
+ if (count & (minblock - 1)) {
+ keep = count & (minblock - 1);
+ count -= keep;
+ if (next_ops->pread (nxdata, bounce, minblock, offs + count, flags,
+ err) == -1)
+ return -1;
+ memcpy (buf + count, bounce, keep);
+ }
+
+ /* Aligned body */
+ while (count) {
+ keep = MIN (maxdata, count);
+ if (next_ops->pread (nxdata, buf, keep, offs, flags, err) == -1)
+ return -1;
+ buf += keep;
+ offs += keep;
+ count -= keep;
+ }
+
+ return 0;
+}
+
+static int
+blocksize_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, const void *b, uint32_t count, uint64_t offs,
+ uint32_t flags, int *err)
+{
+ const char *buf = b;
+ uint32_t keep;
+ uint32_t drop;
+ bool need_flush = false;
+
+ if ((flags & NBDKIT_FLAG_FUA) &&
+ next_ops->can_fua (nxdata) == NBDKIT_FUA_EMULATE) {
+ flags &= ~NBDKIT_FLAG_FUA;
+ need_flush = true;
+ }
+
+ /* Unaligned head */
+ if (offs & (minblock - 1)) {
+ drop = offs & (minblock - 1);
+ keep = MIN (minblock - drop, count);
+ if (next_ops->pread (nxdata, bounce, minblock, offs - drop, 0, err) == -1)
+ return -1;
+ memcpy (bounce + drop, buf, keep);
+ if (next_ops->pwrite (nxdata, bounce, minblock, offs - drop, flags,
+ err) == -1)
+ return -1;
+ buf += keep;
+ offs += keep;
+ count -= keep;
+ }
+
+ /* Unaligned tail */
+ if (count & (minblock - 1)) {
+ keep = count & (minblock - 1);
+ count -= keep;
+ if (next_ops->pread (nxdata, bounce, minblock, offs + count, 0, err) == -1)
+ return -1;
+ memcpy (bounce, buf + count, keep);
+ if (next_ops->pwrite (nxdata, bounce, minblock, offs + count, flags,
+ err) == -1)
+ return -1;
+ }
+
+ /* Aligned body */
+ while (count) {
+ keep = MIN (maxdata, count);
+ if (next_ops->pwrite (nxdata, buf, keep, offs, flags, err) == -1)
+ return -1;
+ buf += keep;
+ offs += keep;
+ count -= keep;
+ }
+
+ if (need_flush)
+ return next_ops->flush (nxdata, 0, err);
+ return 0;
+}
+
+static int
+blocksize_trim (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offs, uint32_t flags,
+ int *err)
+{
+ uint32_t keep;
+ bool need_flush = false;
+
+ if ((flags & NBDKIT_FLAG_FUA) &&
+ next_ops->can_fua (nxdata) == NBDKIT_FUA_EMULATE) {
+ flags &= ~NBDKIT_FLAG_FUA;
+ need_flush = true;
+ }
+
+ /* Unaligned head */
+ if (offs & (minblock - 1)) {
+ keep = MIN (minblock - (offs & (minblock - 1)), count);
+ offs += keep;
+ count -= keep;
+ }
+
+ /* Unaligned tail */
+ if (count & (minblock - 1))
+ count -= count & (minblock - 1);
+
+ /* Aligned body */
+ while (count) {
+ keep = MIN (maxlen, count);
+ if (next_ops->trim (nxdata, keep, offs, flags, err) == -1)
+ return -1;
+ offs += keep;
+ count -= keep;
+ }
+
+ if (need_flush)
+ return next_ops->flush (nxdata, 0, err);
+ return 0;
+}
+
+static int
+blocksize_zero (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offs, uint32_t flags,
+ int *err)
+{
+ uint32_t keep;
+ uint32_t drop;
+ bool need_flush = false;
+
+ if ((flags & NBDKIT_FLAG_FUA) &&
+ next_ops->can_fua (nxdata) == NBDKIT_FUA_EMULATE) {
+ flags &= ~NBDKIT_FLAG_FUA;
+ need_flush = true;
+ }
+
+ /* Unaligned head */
+ if (offs & (minblock - 1)) {
+ drop = offs & (minblock - 1);
+ keep = MIN (minblock - drop, count);
+ if (next_ops->pread (nxdata, bounce, minblock, offs - drop, 0, err) == -1)
+ return -1;
+ memset (bounce + drop, 0, keep);
+ if (next_ops->pwrite (nxdata, bounce, minblock, offs - drop,
+ flags & ~NBDKIT_FLAG_MAY_TRIM, err) == -1)
+ return -1;
+ offs += keep;
+ count -= keep;
+ }
+
+ /* Unaligned tail */
+ if (count & (minblock - 1)) {
+ keep = count & (minblock - 1);
+ count -= keep;
+ if (next_ops->pread (nxdata, bounce, minblock, offs + count, 0, err) == -1)
+ return -1;
+ memset (bounce, 0, keep);
+ if (next_ops->pwrite (nxdata, bounce, minblock, offs + count,
+ flags & ~NBDKIT_FLAG_MAY_TRIM, err) == -1)
+ return -1;
+ }
+
+ /* Aligned body */
+ while (count) {
+ keep = MIN (maxlen, count);
+ if (next_ops->zero (nxdata, keep, offs, flags, err) == -1)
+ return -1;
+ offs += keep;
+ count -= keep;
+ }
+
+ if (need_flush)
+ return next_ops->flush (nxdata, 0, err);
+ return 0;
+}
+
+static int
+blocksize_extents (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset,
+ uint32_t flags, struct nbdkit_extents *extents, int *err)
+{
+ /* Ask the plugin for blocksize-aligned data. Since the extents
+ * list start is set to the real offset, everything before the
+ * offset is ignored automatically. Also we only need to ask for
+ * maxlen of data, because it's fine to return less than the full
+ * count as long as we're making progress.
+ */
+ return next_ops->extents (nxdata,
+ MIN (count, maxlen),
+ ROUND_DOWN (offset, minblock),
+ flags, extents, err);
+}
+
+static struct nbdkit_filter filter = {
+ .name = "blocksize",
+ .longname = "nbdkit blocksize filter",
+ .version = PACKAGE_VERSION,
+ .config = blocksize_config,
+ .config_complete = blocksize_config_complete,
+ .config_help = blocksize_config_help,
+ .prepare = blocksize_prepare,
+ .get_size = blocksize_get_size,
+ .can_multi_conn = blocksize_can_multi_conn,
+ .pread = blocksize_pread,
+ .pwrite = blocksize_pwrite,
+ .trim = blocksize_trim,
+ .zero = blocksize_zero,
+ .extents = blocksize_extents,
+};
+
+NBDKIT_REGISTER_FILTER(filter)
--- /dev/null
+=head1 NAME
+
+nbdkit-blocksize-filter - nbdkit blocksize filter
+
+=head1 SYNOPSIS
+
+ nbdkit --filter=blocksize plugin [minblock=SIZE] [maxdata=SIZE] \
+ [maxlen=SIZE] [plugin-args...]
+
+=head1 DESCRIPTION
+
+C<nbdkit-blocksize-filter> is a filter that ensures various block size
+limits are met on transactions presented to the plugin. The NBD
+protocol permits clients to send requests with a granularity as small
+as 1 byte or as large as nearly 4 gigabytes, although it suggests that
+portable clients should align requests to 512 bytes and not exceed 32
+megabytes without prior coordination with the server.
+
+Meanwhile, some plugins require requests to be aligned to 512-byte
+multiples, or may enforce a maximum transaction size to bound the time
+or memory resources spent by any one command (note that nbdkit itself
+refuses a read or write larger than 64 megabytes, while many other NBD
+servers limit things to 32 megabytes). The blocksize filter can be
+used to modify the client requests to meet the plugin restrictions.
+
+=head1 PARAMETERS
+
+The nbdkit-blocksize-filter accepts the following parameters.
+
+=over 4
+
+=item B<minblock=>SIZE
+
+The minimum block size and alignment to pass to the plugin. This must
+be a power of two, and no larger than 64k. If omitted, this defaults
+to 1 (that is, no minimum size restrictions). The filter rounds up
+read requests to alignment boundaries, performs read-modify-write
+cycles for any unaligned head or tail of a write or zero request, and
+silently ignores any unaligned head or tail of a trim request. The
+filter also truncates the plugin size down to an aligned value (as it
+cannot safely operate on the unaligned tail); it is an error if this
+would result in a size of 0.
+
+This parameter understands the suffix 'k' for 1024.
+
+=item B<maxdata=>SIZE
+
+The maximum block size for any single transaction with data (read and
+write). If omitted, this defaults to 64 megabytes (that is, the
+nbdkit maximum). This need not be a power of two, but must be an
+integer multiple of C<minblock>. The filter fragments any larger
+client request into multiple plugin requests.
+
+This parameter understands the suffixes 'k', 'M', and 'G' for powers
+of 1024.
+
+=item B<maxlen=>SIZE
+
+The maximum length for any single transaction without data (trim, zero
+or extents). If omitted, this defaults to 0xffffffff rounded down to
+C<minsize> alignment (that is, the inherent 32-bit limit of the NBD
+protocol). This need not be a power of two, but must be an integer
+multiple of C<minblock>, and should be at least as large as
+C<maxdata>. The filter fragments any larger client request into
+multiple plugin requests.
+
+This parameter understands the suffixes 'k', 'M', and 'G' for powers
+of 1024.
+
+=back
+
+=head1 EXAMPLES
+
+Allow an arbitrary client to use the VDDK plugin (which is limited to
+512-byte blocks), without having to fix the client to avoid sending
+unaligned requests:
+
+ nbdkit --filter=blocksize vddk minblock=512 file=/absolute/path/to/file.vmdk
+
+Allow an arbitrary client tuned to nbdkit's 64 megabyte sizing to
+connect to a remote server that insists on 32 megabyte sizing, via the
+nbd plugin:
+
+ nbdkit --filter=blocksize nbd maxdata=32M socket=/path/to/socket
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-nbd-plugin(1)>,
+L<nbdkit-vddk-plugin(1)>,
+L<nbdkit-filter(3)>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-cache-filter.pod
+
+filter_LTLIBRARIES = nbdkit-cache-filter.la
+
+nbdkit_cache_filter_la_SOURCES = \
+ blk.c \
+ blk.h \
+ cache.c \
+ cache.h \
+ lru.c \
+ lru.h \
+ reclaim.c \
+ reclaim.h \
+ $(top_srcdir)/include/nbdkit-filter.h
+
+nbdkit_cache_filter_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/bitmap \
+ -I$(top_srcdir)/common/include
+nbdkit_cache_filter_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_cache_filter_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/filters/filters.syms
+nbdkit_cache_filter_la_LIBADD = \
+ $(top_builddir)/common/bitmap/libbitmap.la
+
+if HAVE_POD
+
+man_MANS = nbdkit-cache-filter.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-cache-filter.1: nbdkit-cache-filter.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+ if test -f "$$i"; then \
+ echo "$(subdir)/$$i"; \
+ else \
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+
+distclean-tags:
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+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
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+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+ clean-filterLTLIBRARIES clean-generic clean-libtool \
+ cscopelist-am ctags ctags-am distclean distclean-compile \
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+ uninstall-am uninstall-filterLTLIBRARIES uninstall-man \
+ uninstall-man1
+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-cache-filter.1: nbdkit-cache-filter.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* These are the block operations. They always read or write a single
+ * whole block of size ‘blksize’.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/statvfs.h>
+
+#include <nbdkit-filter.h>
+
+#include "bitmap.h"
+#include "minmax.h"
+
+#include "cache.h"
+#include "blk.h"
+#include "lru.h"
+#include "reclaim.h"
+
+/* The cache. */
+static int fd = -1;
+
+/* Bitmap. There are two bits per block which are updated as we read,
+ * write back or write through blocks.
+ *
+ * 00 = not in cache
+ * 01 = block cached and clean
+ * 10 = <unused>
+ * 11 = block cached and dirty
+ *
+ * Future enhancement:
+ *
+ * We need to cache information about holes, ie. blocks which read as
+ * zeroes but are not explicitly stored in the cache. This
+ * information could be set when clients call cache_zero (and defer
+ * calling plugin->zero until flush). The information could also
+ * interact with extents, so when plugin->extents returns information
+ * that a hole exists we can record this information in the cache and
+ * not have to query the plugin a second time (especially useful for
+ * VDDK where querying extents is slow, and for qemu which [in 2019]
+ * repeatedly requests the same information with REQ_ONE set).
+ */
+static struct bitmap bm;
+
+enum bm_entry {
+ BLOCK_NOT_CACHED = 0, /* assumed to be zero by reclaim code */
+ BLOCK_CLEAN = 1,
+ BLOCK_DIRTY = 3,
+};
+
+int
+blk_init (void)
+{
+ const char *tmpdir;
+ size_t len;
+ char *template;
+ struct statvfs statvfs;
+
+ tmpdir = getenv ("TMPDIR");
+ if (!tmpdir)
+ tmpdir = LARGE_TMPDIR;
+
+ nbdkit_debug ("cache: temporary directory for cache: %s", tmpdir);
+
+ len = strlen (tmpdir) + 8;
+ template = alloca (len);
+ snprintf (template, len, "%s/XXXXXX", tmpdir);
+
+#ifdef HAVE_MKOSTEMP
+ fd = mkostemp (template, O_CLOEXEC);
+#else
+ fd = mkstemp (template);
+ fcntl (fd, F_SETFD, FD_CLOEXEC);
+#endif
+ if (fd == -1) {
+ nbdkit_error ("mkostemp: %s: %m", tmpdir);
+ return -1;
+ }
+
+ unlink (template);
+
+ /* Choose the block size.
+ *
+ * A 4K block size means that we need 64 MB of memory to store the
+ * bitmaps for a 1 TB underlying image. However to support
+ * hole-punching (for reclaiming) we need the block size to be at
+ * least as large as the filesystem block size.
+ */
+ if (fstatvfs (fd, &statvfs) == -1) {
+ nbdkit_error ("fstatvfs: %s: %m", tmpdir);
+ return -1;
+ }
+ blksize = MAX (4096, statvfs.f_bsize);
+ nbdkit_debug ("cache: block size: %u", blksize);
+
+ bitmap_init (&bm, blksize, 2 /* bits per block */);
+
+ lru_init ();
+
+ return 0;
+}
+
+void
+blk_free (void)
+{
+ if (fd >= 0)
+ close (fd);
+
+ bitmap_free (&bm);
+
+ lru_free ();
+}
+
+int
+blk_set_size (uint64_t new_size)
+{
+ if (bitmap_resize (&bm, new_size) == -1)
+ return -1;
+
+ if (ftruncate (fd, new_size) == -1) {
+ nbdkit_error ("ftruncate: %m");
+ return -1;
+ }
+
+ if (lru_set_size (new_size) == -1)
+ return -1;
+
+ return 0;
+}
+
+int
+blk_read (struct nbdkit_next_ops *next_ops, void *nxdata,
+ uint64_t blknum, uint8_t *block, int *err)
+{
+ off_t offset = blknum * blksize;
+ enum bm_entry state = bitmap_get_blk (&bm, blknum, BLOCK_NOT_CACHED);
+
+ reclaim (fd, &bm);
+
+ nbdkit_debug ("cache: blk_read block %" PRIu64 " (offset %" PRIu64 ") is %s",
+ blknum, (uint64_t) offset,
+ state == BLOCK_NOT_CACHED ? "not cached" :
+ state == BLOCK_CLEAN ? "clean" :
+ state == BLOCK_DIRTY ? "dirty" :
+ "unknown");
+
+ if (state == BLOCK_NOT_CACHED) { /* Read underlying plugin. */
+ if (next_ops->pread (nxdata, block, blksize, offset, 0, err) == -1)
+ return -1;
+
+ /* If cache-on-read, copy the block to the cache. */
+ if (cache_on_read) {
+ off_t offset = blknum * blksize;
+
+ nbdkit_debug ("cache: cache-on-read block %" PRIu64
+ " (offset %" PRIu64 ")",
+ blknum, (uint64_t) offset);
+
+ if (pwrite (fd, block, blksize, offset) == -1) {
+ *err = errno;
+ nbdkit_error ("pwrite: %m");
+ return -1;
+ }
+ bitmap_set_blk (&bm, blknum, BLOCK_CLEAN);
+ lru_set_recently_accessed (blknum);
+ }
+ return 0;
+ }
+ else { /* Read cache. */
+ if (pread (fd, block, blksize, offset) == -1) {
+ *err = errno;
+ nbdkit_error ("pread: %m");
+ return -1;
+ }
+ lru_set_recently_accessed (blknum);
+ return 0;
+ }
+}
+
+int
+blk_writethrough (struct nbdkit_next_ops *next_ops, void *nxdata,
+ uint64_t blknum, const uint8_t *block, uint32_t flags,
+ int *err)
+{
+ off_t offset = blknum * blksize;
+
+ reclaim (fd, &bm);
+
+ nbdkit_debug ("cache: writethrough block %" PRIu64 " (offset %" PRIu64 ")",
+ blknum, (uint64_t) offset);
+
+ if (pwrite (fd, block, blksize, offset) == -1) {
+ *err = errno;
+ nbdkit_error ("pwrite: %m");
+ return -1;
+ }
+
+ if (next_ops->pwrite (nxdata, block, blksize, offset, flags, err) == -1)
+ return -1;
+
+ bitmap_set_blk (&bm, blknum, BLOCK_CLEAN);
+ lru_set_recently_accessed (blknum);
+
+ return 0;
+}
+
+int
+blk_write (struct nbdkit_next_ops *next_ops, void *nxdata,
+ uint64_t blknum, const uint8_t *block, uint32_t flags,
+ int *err)
+{
+ off_t offset;
+
+ if (cache_mode == CACHE_MODE_WRITETHROUGH ||
+ (cache_mode == CACHE_MODE_WRITEBACK && (flags & NBDKIT_FLAG_FUA)))
+ return blk_writethrough (next_ops, nxdata, blknum, block, flags, err);
+
+ offset = blknum * blksize;
+
+ reclaim (fd, &bm);
+
+ nbdkit_debug ("cache: writeback block %" PRIu64 " (offset %" PRIu64 ")",
+ blknum, (uint64_t) offset);
+
+ if (pwrite (fd, block, blksize, offset) == -1) {
+ *err = errno;
+ nbdkit_error ("pwrite: %m");
+ return -1;
+ }
+ bitmap_set_blk (&bm, blknum, BLOCK_DIRTY);
+ lru_set_recently_accessed (blknum);
+
+ return 0;
+}
+
+int
+for_each_dirty_block (block_callback f, void *vp)
+{
+ uint64_t blknum;
+ enum bm_entry state;
+
+ bitmap_for (&bm, blknum) {
+ state = bitmap_get_blk (&bm, blknum, BLOCK_NOT_CACHED);
+ if (state == BLOCK_DIRTY) {
+ if (f (blknum, vp) == -1)
+ return -1;
+ }
+ }
+
+ return 0;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_BLK_H
+#define NBDKIT_BLK_H
+
+/* Initialize the cache and bitmap. */
+extern int blk_init (void);
+
+/* Close the cache, free the bitmap. */
+extern void blk_free (void);
+
+/*----------------------------------------------------------------------
+ * ** NOTE **
+ *
+ * An exclusive lock must be held when you call any function below
+ * this line.
+ */
+
+/* Allocate or resize the cache file and bitmap. */
+extern int blk_set_size (uint64_t new_size);
+
+/* Read a single block from the cache or plugin. */
+extern int blk_read (struct nbdkit_next_ops *next_ops, void *nxdata,
+ uint64_t blknum, uint8_t *block, int *err)
+ __attribute__((__nonnull__ (1, 4, 5)));
+
+/* Write to the cache and the plugin. */
+extern int blk_writethrough (struct nbdkit_next_ops *next_ops, void *nxdata,
+ uint64_t blknum, const uint8_t *block,
+ uint32_t flags, int *err)
+ __attribute__((__nonnull__ (1, 4, 6)));
+
+/* Write a whole block.
+ *
+ * If the cache is in writethrough mode, or the FUA flag is set, then
+ * this calls blk_writethrough above which will write both to the
+ * cache and through to the underlying device.
+ *
+ * Otherwise it will only write to the cache.
+ */
+extern int blk_write (struct nbdkit_next_ops *next_ops, void *nxdata,
+ uint64_t blknum, const uint8_t *block,
+ uint32_t flags, int *err)
+ __attribute__((__nonnull__ (1, 4, 6)));
+
+/* Iterates over each dirty block in the cache. */
+typedef int (*block_callback) (uint64_t blknum, void *vp);
+extern int for_each_dirty_block (block_callback f, void *vp)
+ __attribute__((__nonnull__ (1)));
+
+#endif /* NBDKIT_BLK_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+#include <assert.h>
+
+#include <pthread.h>
+
+#ifdef HAVE_ALLOCA_H
+#include <alloca.h>
+#endif
+
+#include <nbdkit-filter.h>
+
+#include "cache.h"
+#include "blk.h"
+#include "reclaim.h"
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* In order to handle parallel requests safely, this lock must be held
+ * when calling any blk_* functions.
+ */
+static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+
+unsigned blksize;
+enum cache_mode cache_mode = CACHE_MODE_WRITEBACK;
+int64_t max_size = -1;
+int hi_thresh = 95, lo_thresh = 80;
+bool cache_on_read = false;
+
+static int cache_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, uint32_t flags, int *err);
+
+static void
+cache_load (void)
+{
+ if (blk_init () == -1)
+ exit (EXIT_FAILURE);
+}
+
+static void
+cache_unload (void)
+{
+ blk_free ();
+}
+
+static int
+cache_config (nbdkit_next_config *next, void *nxdata,
+ const char *key, const char *value)
+{
+ if (strcmp (key, "cache") == 0) {
+ if (strcmp (value, "writeback") == 0) {
+ cache_mode = CACHE_MODE_WRITEBACK;
+ return 0;
+ }
+ else if (strcmp (value, "writethrough") == 0) {
+ cache_mode = CACHE_MODE_WRITETHROUGH;
+ return 0;
+ }
+ else if (strcmp (value, "unsafe") == 0) {
+ cache_mode = CACHE_MODE_UNSAFE;
+ return 0;
+ }
+ else {
+ nbdkit_error ("invalid cache parameter, should be "
+ "writeback|writethrough|unsafe");
+ return -1;
+ }
+ }
+#ifdef HAVE_CACHE_RECLAIM
+ else if (strcmp (key, "cache-max-size") == 0) {
+ int64_t r;
+
+ r = nbdkit_parse_size (value);
+ if (r == -1)
+ return -1;
+ /* We set a lower limit for the cache size just to keep out of
+ * trouble.
+ */
+ if (r < 1024*1024) {
+ nbdkit_error ("cache-max-size is too small");
+ return -1;
+ }
+ max_size = r;
+ return 0;
+ }
+ else if (strcmp (key, "cache-high-threshold") == 0) {
+ if (sscanf (value, "%d", &hi_thresh) != 1) {
+ nbdkit_error ("invalid cache-high-threshold parameter: %s", value);
+ return -1;
+ }
+ if (hi_thresh <= 0) {
+ nbdkit_error ("cache-high-threshold must be greater than zero");
+ return -1;
+ }
+ return 0;
+ }
+ else if (strcmp (key, "cache-low-threshold") == 0) {
+ if (sscanf (value, "%d", &lo_thresh) != 1) {
+ nbdkit_error ("invalid cache-low-threshold parameter: %s", value);
+ return -1;
+ }
+ if (lo_thresh <= 0) {
+ nbdkit_error ("cache-low-threshold must be greater than zero");
+ return -1;
+ }
+ return 0;
+ }
+#else /* !HAVE_CACHE_RECLAIM */
+ else if (strcmp (key, "cache-max-size") == 0 ||
+ strcmp (key, "cache-high-threshold") == 0 ||
+ strcmp (key, "cache-low-threshold") == 0) {
+ nbdkit_error ("this platform does not support cache reclaim");
+ return -1;
+ }
+#endif /* !HAVE_CACHE_RECLAIM */
+ else if (strcmp (key, "cache-on-read") == 0) {
+ int r;
+
+ r = nbdkit_parse_bool (value);
+ if (r == -1)
+ return -1;
+ cache_on_read = r;
+ return 0;
+ }
+ else {
+ return next (nxdata, key, value);
+ }
+}
+
+static int
+cache_config_complete (nbdkit_next_config_complete *next, void *nxdata)
+{
+ /* If cache-max-size was set then check the thresholds. */
+ if (max_size != -1) {
+ if (lo_thresh >= hi_thresh) {
+ nbdkit_error ("cache-low-threshold must be "
+ "less than cache-high-threshold");
+ return -1;
+ }
+ }
+
+ return next (nxdata);
+}
+
+/* Get the file size and ensure the cache is the correct size. */
+static int64_t
+cache_get_size (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ int64_t size;
+ int r;
+
+ size = next_ops->get_size (nxdata);
+ if (size == -1)
+ return -1;
+
+ nbdkit_debug ("cache: underlying file size: %" PRIi64, size);
+
+ pthread_mutex_lock (&lock);
+ r = blk_set_size (size);
+ pthread_mutex_unlock (&lock);
+ if (r == -1)
+ return -1;
+
+ return size;
+}
+
+/* Force an early call to cache_get_size, consequently truncating the
+ * cache to the correct size.
+ */
+static int
+cache_prepare (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ int64_t r;
+
+ r = cache_get_size (next_ops, nxdata, handle);
+ if (r < 0)
+ return -1;
+ /* TODO: cache per-connection FUA mode? */
+ return 0;
+}
+
+/* Read data. */
+static int
+cache_pread (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ uint8_t *block;
+
+ assert (!flags);
+ block = malloc (blksize);
+ if (block == NULL) {
+ *err = errno;
+ nbdkit_error ("malloc: %m");
+ return -1;
+ }
+
+ /* XXX This breaks up large read requests into smaller ones, which
+ * is a problem for plugins which have a large, fixed per-request
+ * overhead (hello, curl). We should try to keep large requests
+ * together as much as possible, but that requires us to be much
+ * smarter here.
+ */
+ while (count > 0) {
+ uint64_t blknum, blkoffs, n;
+ int r;
+
+ blknum = offset / blksize; /* block number */
+ blkoffs = offset % blksize; /* offset within the block */
+ n = blksize - blkoffs; /* max bytes we can read from this block */
+ if (n > count)
+ n = count;
+
+ pthread_mutex_lock (&lock);
+ r = blk_read (next_ops, nxdata, blknum, block, err);
+ pthread_mutex_unlock (&lock);
+ if (r == -1) {
+ free (block);
+ return -1;
+ }
+
+ memcpy (buf, &block[blkoffs], n);
+
+ buf += n;
+ count -= n;
+ offset += n;
+ }
+
+ free (block);
+ return 0;
+}
+
+/* Write data. */
+static int
+cache_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ uint8_t *block;
+ bool need_flush = false;
+
+ block = malloc (blksize);
+ if (block == NULL) {
+ *err = errno;
+ nbdkit_error ("malloc: %m");
+ return -1;
+ }
+
+ if ((flags & NBDKIT_FLAG_FUA) &&
+ next_ops->can_fua (nxdata) == NBDKIT_FUA_EMULATE) {
+ flags &= ~NBDKIT_FLAG_FUA;
+ need_flush = true;
+ }
+ while (count > 0) {
+ uint64_t blknum, blkoffs, n;
+ int r;
+
+ blknum = offset / blksize; /* block number */
+ blkoffs = offset % blksize; /* offset within the block */
+ n = blksize - blkoffs; /* max bytes we can read from this block */
+ if (n > count)
+ n = count;
+
+ /* Do a read-modify-write operation on the current block.
+ * Hold the lock over the whole operation.
+ */
+ pthread_mutex_lock (&lock);
+ r = blk_read (next_ops, nxdata, blknum, block, err);
+ if (r != -1) {
+ memcpy (&block[blkoffs], buf, n);
+ r = blk_write (next_ops, nxdata, blknum, block, flags, err);
+ }
+ pthread_mutex_unlock (&lock);
+ if (r == -1) {
+ free (block);
+ return -1;
+ }
+
+ buf += n;
+ count -= n;
+ offset += n;
+ }
+
+ free (block);
+ if (need_flush)
+ return cache_flush (next_ops, nxdata, handle, 0, err);
+ return 0;
+}
+
+/* Zero data. */
+static int
+cache_zero (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset, uint32_t flags,
+ int *err)
+{
+ uint8_t *block;
+ bool need_flush = false;
+
+ block = malloc (blksize);
+ if (block == NULL) {
+ *err = errno;
+ nbdkit_error ("malloc: %m");
+ return -1;
+ }
+
+ flags &= ~NBDKIT_FLAG_MAY_TRIM;
+ if ((flags & NBDKIT_FLAG_FUA) &&
+ next_ops->can_fua (nxdata) == NBDKIT_FUA_EMULATE) {
+ flags &= ~NBDKIT_FLAG_FUA;
+ need_flush = true;
+ }
+ while (count > 0) {
+ uint64_t blknum, blkoffs, n;
+ int r;
+
+ blknum = offset / blksize; /* block number */
+ blkoffs = offset % blksize; /* offset within the block */
+ n = blksize - blkoffs; /* max bytes we can read from this block */
+ if (n > count)
+ n = count;
+
+ /* Do a read-modify-write operation on the current block.
+ * Hold the lock over the whole operation.
+ */
+ pthread_mutex_lock (&lock);
+ r = blk_read (next_ops, nxdata, blknum, block, err);
+ if (r != -1) {
+ memset (&block[blkoffs], 0, n);
+ r = blk_write (next_ops, nxdata, blknum, block, flags, err);
+ }
+ pthread_mutex_unlock (&lock);
+ if (r == -1) {
+ free (block);
+ return -1;
+ }
+
+ count -= n;
+ offset += n;
+ }
+
+ free (block);
+ if (need_flush)
+ return cache_flush (next_ops, nxdata, handle, 0, err);
+ return 0;
+}
+
+/* Flush: Go through all the dirty blocks, flushing them to disk. */
+struct flush_data {
+ uint8_t *block; /* bounce buffer */
+ unsigned errors; /* count of errors seen */
+ int first_errno; /* first errno seen */
+ struct nbdkit_next_ops *next_ops;
+ void *nxdata;
+};
+
+static int flush_dirty_block (uint64_t blknum, void *);
+
+static int
+cache_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle,
+ uint32_t flags, int *err)
+{
+ struct flush_data data =
+ { .errors = 0, .first_errno = 0, .next_ops = next_ops, .nxdata = nxdata };
+ int tmp;
+
+ if (cache_mode == CACHE_MODE_UNSAFE)
+ return 0;
+
+ assert (!flags);
+
+ /* Allocate the bounce buffer. */
+ data.block = malloc (blksize);
+ if (data.block == NULL) {
+ *err = errno;
+ nbdkit_error ("malloc: %m");
+ return -1;
+ }
+
+ /* In theory if cache_mode == CACHE_MODE_WRITETHROUGH then there
+ * should be no dirty blocks. However we go through the cache here
+ * to be sure. Also we still need to issue the flush to the
+ * underlying storage.
+ */
+ pthread_mutex_lock (&lock);
+ for_each_dirty_block (flush_dirty_block, &data);
+ pthread_mutex_unlock (&lock);
+ free (data.block);
+
+ /* Now issue a flush request to the underlying storage. */
+ if (next_ops->flush (nxdata, 0,
+ data.errors ? &tmp : &data.first_errno) == -1)
+ data.errors++;
+
+ if (data.errors > 0) {
+ *err = data.first_errno;
+ return -1;
+ }
+ return 0;
+}
+
+static int
+flush_dirty_block (uint64_t blknum, void *datav)
+{
+ struct flush_data *data = datav;
+ int tmp;
+
+ /* Perform a read + writethrough which will read from the
+ * cache and write it through to the underlying storage.
+ */
+ if (blk_read (data->next_ops, data->nxdata, blknum, data->block,
+ data->errors ? &tmp : &data->first_errno) == -1)
+ goto err;
+ if (blk_writethrough (data->next_ops, data->nxdata, blknum, data->block, 0,
+ data->errors ? &tmp : &data->first_errno) == -1)
+ goto err;
+
+ return 0;
+
+ err:
+ nbdkit_error ("cache: flush of block %" PRIu64 " failed", blknum);
+ data->errors++;
+ return 0; /* continue scanning and flushing. */
+}
+
+static struct nbdkit_filter filter = {
+ .name = "cache",
+ .longname = "nbdkit caching filter",
+ .version = PACKAGE_VERSION,
+ .load = cache_load,
+ .unload = cache_unload,
+ .config = cache_config,
+ .config_complete = cache_config_complete,
+ .prepare = cache_prepare,
+ .get_size = cache_get_size,
+ .pread = cache_pread,
+ .pwrite = cache_pwrite,
+ .zero = cache_zero,
+ .flush = cache_flush,
+};
+
+NBDKIT_REGISTER_FILTER(filter)
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_CACHE_H
+#define NBDKIT_CACHE_H
+
+#include <fcntl.h>
+
+/* Caching mode. */
+extern enum cache_mode {
+ CACHE_MODE_WRITEBACK,
+ CACHE_MODE_WRITETHROUGH,
+ CACHE_MODE_UNSAFE,
+} cache_mode;
+
+/* Size of a block in the cache. */
+extern unsigned blksize;
+
+/* Maximum size of the cache and high/low thresholds. */
+extern int64_t max_size;
+extern int hi_thresh, lo_thresh;
+
+/* Cache read requests. */
+extern bool cache_on_read;
+
+#endif /* NBDKIT_CACHE_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* These are the block operations. They always read or write a single
+ * whole block of size ‘blksize’.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <inttypes.h>
+
+#include <nbdkit-filter.h>
+
+#include "bitmap.h"
+#include "minmax.h"
+
+#include "cache.h"
+#include "blk.h"
+#include "lru.h"
+
+/* LRU bitmaps. These bitmaps implement a simple, fast LRU structure.
+ *
+ * bm[0] bm[1] blocks not in either bitmap
+ * ┌─────────┬──────────────────┬─────────────────────────────┐
+ * │ │ │ │
+ * └─────────┴──────────────────┴─────────────────────────────┘
+ * ↑ c1 bits set
+ * c0 bits set
+ *
+ * The LRU structure keeps track of the [approx] last N distinct
+ * blocks which have been most recently accessed. It can answer in
+ * O(1) time the question: “Is a particular block in or not in the N
+ * distinct blocks most recently accessed?”
+ *
+ * To do this we keep two bitmaps.
+ *
+ * When a new block is accessed, we set the corresponding bit in bm[0]
+ * and increment c0 (c0 counts the number of bits set in bm[0]). If
+ * c0 == N/2 then we swap the two bitmaps, clear bm[0], and reset c0
+ * to 0.
+ *
+ * To check if a block has been accessed within the previous N
+ * distinct accesses, we simply have to check both bitmaps. If it is
+ * not in either bitmap, then it's old and a candidate to be
+ * reclaimed.
+ *
+ * You'll note that in fact we only keep track of between N/2 and N
+ * recently accessed blocks. We could make the estimate more accurate
+ * by having more bitmaps, but as this is only a heuristic we choose
+ * to keep the implementation simple and memory usage low instead.
+ */
+static struct bitmap bm[2];
+static unsigned c0 = 0, c1 = 0;
+static unsigned N = 100;
+
+void
+lru_init (void)
+{
+ bitmap_init (&bm[0], blksize, 1 /* bits per block */);
+ bitmap_init (&bm[1], blksize, 1 /* bits per block */);
+}
+
+void
+lru_free (void)
+{
+ bitmap_free (&bm[0]);
+ bitmap_free (&bm[1]);
+}
+
+int
+lru_set_size (uint64_t new_size)
+{
+ if (bitmap_resize (&bm[0], new_size) == -1)
+ return -1;
+ if (bitmap_resize (&bm[1], new_size) == -1)
+ return -1;
+
+ if (max_size != -1)
+ /* Make the threshold about 1/4 the maximum size of the cache. */
+ N = MAX (max_size / blksize / 4, 100);
+ else
+ N = MAX (new_size / blksize / 4, 100);
+
+ return 0;
+}
+
+void
+lru_set_recently_accessed (uint64_t blknum)
+{
+ /* If the block is already set in the first bitmap, don't need to do
+ * anything.
+ */
+ if (bitmap_get_blk (&bm[0], blknum, false))
+ return;
+
+ bitmap_set_blk (&bm[0], blknum, true);
+ c0++;
+
+ /* If we've reached N/2 then we need to swap over the bitmaps. */
+ if (c0 >= N/2) {
+ struct bitmap tmp;
+
+ tmp = bm[0];
+ bm[0] = bm[1];
+ bm[1] = tmp;
+ c1 = c0;
+
+ bitmap_clear (&bm[0]);
+ c0 = 0;
+ }
+}
+
+bool
+lru_has_been_recently_accessed (uint64_t blknum)
+{
+ return
+ bitmap_get_blk (&bm[0], blknum, false) ||
+ bitmap_get_blk (&bm[1], blknum, false);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_LRU_H
+#define NBDKIT_LRU_H
+
+#include <stdbool.h>
+
+/* Initialize LRU. */
+extern void lru_init (void);
+
+/* Free the LRU. */
+extern void lru_free (void);
+
+/* Notify LRU that the virtual size has changed. */
+extern int lru_set_size (uint64_t new_size);
+
+/* Mark a block as recently accessed in the LRU structure. */
+extern void lru_set_recently_accessed (uint64_t blknum);
+
+/* Check if a block has been recently accessed. */
+extern bool lru_has_been_recently_accessed (uint64_t blknum);
+
+#endif /* NBDKIT_LRU_H */
--- /dev/null
+=head1 NAME
+
+nbdkit-cache-filter - nbdkit caching filter
+
+=head1 SYNOPSIS
+
+ nbdkit --filter=cache plugin [cache=writeback|writethrough|unsafe]
+ [cache-max-size=SIZE]
+ [cache-high-threshold=N]
+ [cache-low-threshold=N]
+ [cache-on-read=true|false]
+ [plugin-args...]
+
+=head1 DESCRIPTION
+
+C<nbdkit-cache-filter> is a filter that adds caching on top of a
+plugin. This is useful if a plugin is slow or expensive to use,
+because nbdkit will try to minimize requests to the plugin by caching
+previous requests.
+
+Note that many NBD I<clients> are able to do caching, and because the
+caching happens on the client side it will usually be more effective
+than caching inside the server. This filter can be used if the client
+does not have effective caching, or (with C<cache=unsafe>) to defeat
+flush requests from the client (which is unsafe and can cause data
+loss, as the name suggests).
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<cache=writeback>
+
+Store writes in the cache. They are not written to the plugin unless
+an explicit flush is done by the client.
+
+This is the default caching mode, and is safe if your client issues
+flush requests correctly (which is true for modern Linux and other
+well-written NBD clients).
+
+=item B<cache=writethrough>
+
+Always force writes through to the plugin.
+
+This makes the cache less effective, but is necessary if your client
+does not issue correct flush requests.
+
+=item B<cache=unsafe>
+
+Ignore flush requests. Never write to the plugin unless the cache
+grows too large.
+
+This is dangerous and can cause data loss, but this may be acceptable
+if you only use it for testing or with data that you don't care about
+or can cheaply reconstruct.
+
+=item B<cache-max-size=SIZE>
+
+=item B<cache-high-threshold=N>
+
+=item B<cache-low-threshold=N>
+
+Limit the size of the cache to C<SIZE>. See L</CACHE MAXIMUM SIZE> below.
+
+=item B<cache-on-read=true>
+
+Cache read requests as well as write requests. Any time a block is
+read from the plugin, it is saved in the cache (if there is sufficient
+space) so the same data can be served more quickly later.
+
+Note that if the underlying data served by the plugin can be modified
+by some other means (eg. something else can write to a file which is
+being served by L<nbdkit-file-plugin(1)>), this option will cause
+nbdkit to serve stale data because reads won't always go through to
+the plugin.
+
+=item B<cache-on-read=false>
+
+Do not cache read requests (this is the default).
+
+=back
+
+=head1 CACHE MAXIMUM SIZE
+
+By default the cache can grow to any size (although not larger than
+the virtual size of the underlying plugin) and you have to ensure
+there is sufficient space in C<$TMPDIR> for it.
+
+Using the parameters C<cache-max-size>, C<cache-high-threshold> and
+C<cache-low-threshold> you can limit the maximum size of the cache.
+
+This requires kernel and filesystem support (for L<fallocate(2)>
+C<FALLOC_FL_PUNCH_HOLE>), so it may not work on all platforms.
+
+Some examples:
+
+=over 4
+
+=item C<cache-max-size=1G>
+
+The cache is limited to around 1 gigabyte.
+
+=item C<cache-max-size=1G cache-high-threshold=95 cache-low-threshold=80>
+
+Once the cache size reaches 972M (95% of 1G), blocks are reclaimed
+from the cache until the size is reduced to 819M (80% of 1G).
+
+=back
+
+The way this works is once the size of the cache exceeds
+S<C<SIZE> ✕ the high threshold>, the filter works to reduce the size
+of the cache until it is less than S<C<SIZE> ✕ the low threshold>.
+Once the size is below the low threshold, no more reclaim work is done
+until the size exceeds the high threshold again.
+
+The default thresholds are high 95% and low 80%. You must set
+S<0 E<lt> low E<lt> high>. The thresholds are expressed as integer
+percentages of C<cache-max-size>.
+
+Least recently used blocks are discarded first.
+
+=head1 ENVIRONMENT VARIABLES
+
+=over 4
+
+=item C<TMPDIR>
+
+The cache is stored in a temporary file located in F</var/tmp> by
+default. You can override this location by setting the C<TMPDIR>
+environment variable before starting nbdkit.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-file-plugin(1)>,
+L<nbdkit-readahead-filter(1)>,
+L<nbdkit-filter(3)>,
+L<qemu-img(1)>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <nbdkit-filter.h>
+
+#include "bitmap.h"
+
+#include "cache.h"
+#include "reclaim.h"
+#include "lru.h"
+
+#ifndef HAVE_CACHE_RECLAIM
+
+void
+reclaim (int fd, struct bitmap *bm)
+{
+ /* nothing */
+}
+
+#else /* HAVE_CACHE_RECLAIM */
+
+/* If we are currently reclaiming blocks from the cache.
+ *
+ * The state machine starts in the NOT_RECLAIMING state. When the
+ * size of the cache exceeds the high threshold, we move to
+ * RECLAIMING_LRU. Once we have exhausted all LRU blocks, we move to
+ * RECLAIMING_ANY (reclaiming any blocks).
+ *
+ * If at any time the size of the cache goes below the low threshold
+ * we move back to the NOT_RECLAIMING state.
+ *
+ * A possible future enhancement is to add an extra state between LRU
+ * and ANY which reclaims blocks from lru.c:bm[1].
+ *
+ * reclaim_blk is the last block that we looked at.
+ */
+enum reclaim_state {
+ NOT_RECLAIMING = 0,
+ RECLAIMING_LRU = 1,
+ RECLAIMING_ANY = 2,
+};
+
+static enum reclaim_state reclaiming = NOT_RECLAIMING;
+static uint64_t reclaim_blk;
+
+static void reclaim_one (int fd, struct bitmap *bm);
+static void reclaim_lru (int fd, struct bitmap *bm);
+static void reclaim_any (int fd, struct bitmap *bm);
+static void reclaim_block (int fd, struct bitmap *bm);
+
+void
+reclaim (int fd, struct bitmap *bm)
+{
+ struct stat statbuf;
+ uint64_t cache_allocated;
+
+ /* If the user didn't set cache-max-size, do nothing. */
+ if (max_size == -1) return;
+
+ /* Check the allocated size of the cache. */
+ if (fstat (fd, &statbuf) == -1) {
+ nbdkit_debug ("cache: fstat: %m");
+ return;
+ }
+ cache_allocated = statbuf.st_blocks * UINT64_C(512);
+
+ if (reclaiming) {
+ /* Keep reclaiming until the cache size drops below the low threshold. */
+ if (cache_allocated < max_size * lo_thresh / 100) {
+ nbdkit_debug ("cache: stop reclaiming");
+ reclaiming = NOT_RECLAIMING;
+ return;
+ }
+ }
+ else {
+ if (cache_allocated < max_size * hi_thresh / 100)
+ return;
+
+ /* Start reclaiming if the cache size goes over the high threshold. */
+ nbdkit_debug ("cache: start reclaiming");
+ reclaiming = RECLAIMING_LRU;
+ }
+
+ /* Reclaim up to 2 cache blocks. */
+ reclaim_one (fd, bm);
+ reclaim_one (fd, bm);
+}
+
+/* Reclaim a single cache block. */
+static void
+reclaim_one (int fd, struct bitmap *bm)
+{
+ assert (reclaiming);
+
+ if (reclaiming == RECLAIMING_LRU)
+ reclaim_lru (fd, bm);
+ else
+ reclaim_any (fd, bm);
+}
+
+static void
+reclaim_lru (int fd, struct bitmap *bm)
+{
+ uint64_t old_reclaim_blk;
+
+ /* Find the next block in the cache. */
+ reclaim_blk = bitmap_next (bm, reclaim_blk+1);
+ old_reclaim_blk = reclaim_blk;
+
+ /* Search for an LRU block after this one. */
+ do {
+ if (! lru_has_been_recently_accessed (reclaim_blk)) {
+ reclaim_block (fd, bm);
+ return;
+ }
+
+ reclaim_blk = bitmap_next (bm, reclaim_blk+1);
+ if (reclaim_blk == -1) /* wrap around */
+ reclaim_blk = bitmap_next (bm, 0);
+ } while (reclaim_blk >= 0 && old_reclaim_blk != reclaim_blk);
+
+ if (old_reclaim_blk == reclaim_blk) {
+ /* Run out of LRU blocks, so start reclaiming any block in the cache. */
+ nbdkit_debug ("cache: reclaiming any blocks");
+ reclaiming = RECLAIMING_ANY;
+ reclaim_any (fd, bm);
+ }
+}
+
+static void
+reclaim_any (int fd, struct bitmap *bm)
+{
+ /* Find the next block in the cache. */
+ reclaim_blk = bitmap_next (bm, reclaim_blk+1);
+ if (reclaim_blk == -1) /* wrap around */
+ reclaim_blk = bitmap_next (bm, 0);
+
+ reclaim_block (fd, bm);
+}
+
+static void
+reclaim_block (int fd, struct bitmap *bm)
+{
+ if (reclaim_blk == -1) {
+ nbdkit_debug ("cache: run out of blocks to reclaim!");
+ return;
+ }
+
+ nbdkit_debug ("cache: reclaiming block %" PRIu64, reclaim_blk);
+#ifdef FALLOC_FL_PUNCH_HOLE
+ if (fallocate (fd, FALLOC_FL_PUNCH_HOLE|FALLOC_FL_KEEP_SIZE,
+ reclaim_blk * blksize, blksize) == -1) {
+ nbdkit_error ("cache: reclaiming cache blocks: "
+ "fallocate: FALLOC_FL_PUNCH_HOLE: %m");
+ return;
+ }
+#else
+#error "no implementation for punching holes"
+#endif
+
+ bitmap_set_blk (bm, reclaim_blk, 0);
+}
+
+#endif /* HAVE_CACHE_RECLAIM */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_RECLAIM_H
+#define NBDKIT_RECLAIM_H
+
+#include "bitmap.h"
+
+/* Do we support reclaiming cache blocks? */
+#ifdef FALLOC_FL_PUNCH_HOLE
+#define HAVE_CACHE_RECLAIM 1
+#else
+#undef HAVE_CACHE_RECLAIM
+#endif
+
+/* Check if we need to reclaim blocks, and if so reclaim up to two
+ * blocks.
+ *
+ * Note this must be called with the blk lock held.
+ */
+extern void reclaim (int fd, struct bitmap *bm);
+
+#endif /* NBDKIT_RECLAIM_H */
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-cow-filter.pod
+
+filter_LTLIBRARIES = nbdkit-cow-filter.la
+
+nbdkit_cow_filter_la_SOURCES = \
+ blk.c \
+ blk.h \
+ cow.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+
+nbdkit_cow_filter_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/bitmap \
+ -I$(top_srcdir)/common/include
+nbdkit_cow_filter_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_cow_filter_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/filters/filters.syms
+nbdkit_cow_filter_la_LIBADD = \
+ $(top_builddir)/common/bitmap/libbitmap.la
+
+if HAVE_POD
+
+man_MANS = nbdkit-cow-filter.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-cow-filter.1: nbdkit-cow-filter.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
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+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
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+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+ @srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+ topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+ list='$(DISTFILES)'; \
+ dist_files=`for file in $$list; do echo $$file; done | \
+ sed -e "s|^$$srcdirstrip/||;t" \
+ -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+ case $$dist_files in \
+ */*) $(MKDIR_P) `echo "$$dist_files" | \
+ sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+ sort -u` ;; \
+ esac; \
+ for file in $$dist_files; do \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ if test -d $$d/$$file; then \
+ dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test -d "$(distdir)/$$file"; then \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+ else \
+ test -f "$(distdir)/$$file" \
+ || cp -p $$d/$$file "$(distdir)/$$file" \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES) $(MANS)
+installdirs:
+ for dir in "$(DESTDIR)$(filterdir)" "$(DESTDIR)$(man1dir)"; do \
+ test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+ done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+ if test -z '$(STRIP)'; then \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ install; \
+ else \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
+
+clean-generic:
+ -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-filterLTLIBRARIES clean-generic clean-libtool \
+ mostlyclean-am
+
+distclean: distclean-am
+ -rm -f ./$(DEPDIR)/nbdkit_cow_filter_la-blk.Plo
+ -rm -f ./$(DEPDIR)/nbdkit_cow_filter_la-cow.Plo
+ -rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-filterLTLIBRARIES install-man
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man: install-man1
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f ./$(DEPDIR)/nbdkit_cow_filter_la-blk.Plo
+ -rm -f ./$(DEPDIR)/nbdkit_cow_filter_la-cow.Plo
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-filterLTLIBRARIES uninstall-man
+
+uninstall-man: uninstall-man1
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+ clean-filterLTLIBRARIES clean-generic clean-libtool \
+ cscopelist-am ctags ctags-am distclean distclean-compile \
+ distclean-generic distclean-libtool distclean-tags distdir dvi \
+ dvi-am html html-am info info-am install install-am \
+ install-data install-data-am install-dvi install-dvi-am \
+ install-exec install-exec-am install-filterLTLIBRARIES \
+ install-html install-html-am install-info install-info-am \
+ install-man install-man1 install-pdf install-pdf-am install-ps \
+ install-ps-am install-strip installcheck installcheck-am \
+ installdirs maintainer-clean maintainer-clean-generic \
+ mostlyclean mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
+ uninstall-am uninstall-filterLTLIBRARIES uninstall-man \
+ uninstall-man1
+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-cow-filter.1: nbdkit-cow-filter.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* Notes on the design and implementation of this filter:
+ *
+ * The filter works by creating a large, sparse temporary file, the
+ * same size as the underlying device. Being sparse, initially this
+ * takes up no space.
+ *
+ * We confine all pread/pwrite operations to the filesystem block
+ * size. The blk_* functions below only work on whole filesystem
+ * block boundaries. A smaller-than-block-size pwrite will turn into
+ * a read-modify-write of a whole block. We also assume that the
+ * plugin returns the same immutable data for each pread call we make,
+ * and optimize on this basis.
+ *
+ * A block bitmap is maintained in memory recording if each block in
+ * the temporary file is "allocated" (1) or "hole" (0).
+ *
+ * When reading a block we first check the bitmap to see if that file
+ * block is allocated or a hole. If allocated, we return it from the
+ * temporary file. If a hole, we issue a pread to the underlying
+ * plugin.
+ *
+ * When writing a block we unconditionally write the data to the
+ * temporary file, setting the bit in the bitmap.
+ *
+ * We allow the client to request FUA, and emulate it with a flush
+ * (arguably, since the write overlay is temporary, we could ignore
+ * FUA altogether).
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/ioctl.h>
+
+#ifdef HAVE_ALLOCA_H
+#include <alloca.h>
+#endif
+
+#include <nbdkit-filter.h>
+
+#include "bitmap.h"
+#include "blk.h"
+
+#ifndef HAVE_FDATASYNC
+#define fdatasync fsync
+#endif
+
+/* The temporary overlay. */
+static int fd = -1;
+
+/* Bitmap. Bit = 1 => allocated, 0 => hole. */
+static struct bitmap bm;
+
+int
+blk_init (void)
+{
+ const char *tmpdir;
+ size_t len;
+ char *template;
+
+ bitmap_init (&bm, BLKSIZE, 1 /* bits per block */);
+
+ tmpdir = getenv ("TMPDIR");
+ if (!tmpdir)
+ tmpdir = LARGE_TMPDIR;
+
+ nbdkit_debug ("cow: temporary directory for overlay: %s", tmpdir);
+
+ len = strlen (tmpdir) + 8;
+ template = alloca (len);
+ snprintf (template, len, "%s/XXXXXX", tmpdir);
+
+#ifdef HAVE_MKOSTEMP
+ fd = mkostemp (template, O_CLOEXEC);
+#else
+ fd = mkstemp (template);
+ fcntl (fd, F_SETFD, FD_CLOEXEC);
+#endif
+ if (fd == -1) {
+ nbdkit_error ("mkostemp: %s: %m", tmpdir);
+ return -1;
+ }
+
+ unlink (template);
+ return 0;
+}
+
+void
+blk_free (void)
+{
+ if (fd >= 0)
+ close (fd);
+
+ bitmap_free (&bm);
+}
+
+/* Allocate or resize the overlay file and bitmap. */
+int
+blk_set_size (uint64_t new_size)
+{
+ if (bitmap_resize (&bm, new_size) == -1)
+ return -1;
+
+ if (ftruncate (fd, new_size) == -1) {
+ nbdkit_error ("ftruncate: %m");
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Return true if the block is allocated. Consults the bitmap. */
+static bool
+blk_is_allocated (uint64_t blknum)
+{
+ return bitmap_get_blk (&bm, blknum, false);
+}
+
+/* Mark a block as allocated. */
+static void
+blk_set_allocated (uint64_t blknum)
+{
+ bitmap_set_blk (&bm, blknum, true);
+}
+
+/* These are the block operations. They always read or write a single
+ * whole block of size ‘blksize’.
+ */
+int
+blk_read (struct nbdkit_next_ops *next_ops, void *nxdata,
+ uint64_t blknum, uint8_t *block, int *err)
+{
+ off_t offset = blknum * BLKSIZE;
+ bool allocated = blk_is_allocated (blknum);
+
+ nbdkit_debug ("cow: blk_read block %" PRIu64 " (offset %" PRIu64 ") is %s",
+ blknum, (uint64_t) offset,
+ !allocated ? "a hole" : "allocated");
+
+ if (!allocated) /* Read underlying plugin. */
+ return next_ops->pread (nxdata, block, BLKSIZE, offset, 0, err);
+ else { /* Read overlay. */
+ if (pread (fd, block, BLKSIZE, offset) == -1) {
+ *err = errno;
+ nbdkit_error ("pread: %m");
+ return -1;
+ }
+ return 0;
+ }
+}
+
+int
+blk_write (uint64_t blknum, const uint8_t *block, int *err)
+{
+ off_t offset = blknum * BLKSIZE;
+
+ nbdkit_debug ("cow: blk_write block %" PRIu64 " (offset %" PRIu64 ")",
+ blknum, (uint64_t) offset);
+
+ if (pwrite (fd, block, BLKSIZE, offset) == -1) {
+ *err = errno;
+ nbdkit_error ("pwrite: %m");
+ return -1;
+ }
+ blk_set_allocated (blknum);
+
+ return 0;
+}
+
+int
+blk_flush (void)
+{
+ /* I think we don't care about file metadata for this temporary
+ * file, so only flush the data.
+ */
+ if (fdatasync (fd) == -1) {
+ nbdkit_error ("fdatasync: %m");
+ return -1;
+ }
+
+ return 0;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_BLK_H
+#define NBDKIT_BLK_H
+
+/* Size of a block in the overlay. A 4K block size means that we need
+ * 32 MB of memory to store the bitmap for a 1 TB underlying image.
+ */
+#define BLKSIZE 4096
+
+/* Initialize the overlay and bitmap. */
+extern int blk_init (void);
+
+/* Close the overlay, free the bitmap. */
+extern void blk_free (void);
+
+/*----------------------------------------------------------------------
+ * ** NOTE **
+ *
+ * An exclusive lock must be held when you call any function below
+ * this line.
+ */
+
+/* Allocate or resize the overlay and bitmap. */
+extern int blk_set_size (uint64_t new_size);
+
+/* Read a single block from the overlay or plugin. */
+extern int blk_read (struct nbdkit_next_ops *next_ops, void *nxdata,
+ uint64_t blknum, uint8_t *block, int *err)
+ __attribute__((__nonnull__ (1, 4, 5)));
+
+/* Write a single block. */
+extern int blk_write (uint64_t blknum, const uint8_t *block, int *err)
+ __attribute__((__nonnull__ (2, 3)));
+
+/* Flush the overlay to disk. */
+extern int blk_flush (void);
+
+#endif /* NBDKIT_BLK_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <inttypes.h>
+#include <string.h>
+#include <errno.h>
+
+#include <pthread.h>
+
+#include <nbdkit-filter.h>
+
+#include "blk.h"
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* In order to handle parallel requests safely, this lock must be held
+ * when calling any blk_* functions.
+ */
+static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+
+static void
+cow_load (void)
+{
+ if (blk_init () == -1)
+ exit (EXIT_FAILURE);
+}
+
+static void
+cow_unload (void)
+{
+ blk_free ();
+}
+
+static void *
+cow_open (nbdkit_next_open *next, void *nxdata, int readonly)
+{
+ /* Always pass readonly=1 to the underlying plugin. */
+ if (next (nxdata, 1) == -1)
+ return NULL;
+
+ return NBDKIT_HANDLE_NOT_NEEDED;
+}
+
+/* Get the file size and ensure the overlay is the correct size. */
+static int64_t
+cow_get_size (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ int64_t size;
+ int r;
+
+ size = next_ops->get_size (nxdata);
+ if (size == -1)
+ return -1;
+
+ nbdkit_debug ("cow: underlying file size: %" PRIi64, size);
+
+ pthread_mutex_lock (&lock);
+ r = blk_set_size (size);
+ pthread_mutex_unlock (&lock);
+ if (r == -1)
+ return -1;
+
+ return size;
+}
+
+/* Force an early call to cow_get_size, consequently truncating the
+ * overlay to the correct size.
+ */
+static int
+cow_prepare (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ int64_t r;
+
+ r = cow_get_size (next_ops, nxdata, handle);
+ return r >= 0 ? 0 : -1;
+}
+
+/* Whatever the underlying plugin can or can't do, we can write, we
+ * cannot trim or detect extents, and we can flush.
+ */
+static int
+cow_can_write (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle)
+{
+ return 1;
+}
+
+static int
+cow_can_trim (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle)
+{
+ return 0;
+}
+
+static int
+cow_can_extents (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle)
+{
+ return 0;
+}
+
+static int
+cow_can_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle)
+{
+ return 1;
+}
+
+static int
+cow_can_fua (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle)
+{
+ return NBDKIT_FUA_EMULATE;
+}
+
+static int cow_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle, uint32_t flags, int *err);
+
+/* Read data. */
+static int
+cow_pread (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ uint8_t *block;
+
+ block = malloc (BLKSIZE);
+ if (block == NULL) {
+ *err = errno;
+ nbdkit_error ("malloc: %m");
+ return -1;
+ }
+
+ while (count > 0) {
+ uint64_t blknum, blkoffs, n;
+ int r;
+
+ blknum = offset / BLKSIZE; /* block number */
+ blkoffs = offset % BLKSIZE; /* offset within the block */
+ n = BLKSIZE - blkoffs; /* max bytes we can read from this block */
+ if (n > count)
+ n = count;
+
+ pthread_mutex_lock (&lock);
+ r = blk_read (next_ops, nxdata, blknum, block, err);
+ pthread_mutex_unlock (&lock);
+ if (r == -1) {
+ free (block);
+ return -1;
+ }
+
+ memcpy (buf, &block[blkoffs], n);
+
+ buf += n;
+ count -= n;
+ offset += n;
+ }
+
+ free (block);
+ return 0;
+}
+
+/* Write data. */
+static int
+cow_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ uint8_t *block;
+
+ block = malloc (BLKSIZE);
+ if (block == NULL) {
+ *err = errno;
+ nbdkit_error ("malloc: %m");
+ return -1;
+ }
+
+ while (count > 0) {
+ uint64_t blknum, blkoffs, n;
+ int r;
+
+ blknum = offset / BLKSIZE; /* block number */
+ blkoffs = offset % BLKSIZE; /* offset within the block */
+ n = BLKSIZE - blkoffs; /* max bytes we can read from this block */
+ if (n > count)
+ n = count;
+
+ /* Do a read-modify-write operation on the current block.
+ * Hold the lock over the whole operation.
+ */
+ pthread_mutex_lock (&lock);
+ r = blk_read (next_ops, nxdata, blknum, block, err);
+ if (r != -1) {
+ memcpy (&block[blkoffs], buf, n);
+ r = blk_write (blknum, block, err);
+ }
+ pthread_mutex_unlock (&lock);
+ if (r == -1) {
+ free (block);
+ return -1;
+ }
+
+ buf += n;
+ count -= n;
+ offset += n;
+ }
+
+ free (block);
+ if (flags & NBDKIT_FLAG_FUA)
+ return cow_flush (next_ops, nxdata, handle, 0, err);
+ return 0;
+}
+
+/* Zero data. */
+static int
+cow_zero (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset, uint32_t flags,
+ int *err)
+{
+ uint8_t *block;
+
+ block = malloc (BLKSIZE);
+ if (block == NULL) {
+ *err = errno;
+ nbdkit_error ("malloc: %m");
+ return -1;
+ }
+
+ while (count > 0) {
+ uint64_t blknum, blkoffs, n;
+ int r;
+
+ blknum = offset / BLKSIZE; /* block number */
+ blkoffs = offset % BLKSIZE; /* offset within the block */
+ n = BLKSIZE - blkoffs; /* max bytes we can read from this block */
+ if (n > count)
+ n = count;
+
+ /* Do a read-modify-write operation on the current block.
+ * Hold the lock over the whole operation.
+ *
+ * XXX There is the possibility of optimizing this: ONLY if we are
+ * writing a whole, aligned block, then use FALLOC_FL_ZERO_RANGE.
+ */
+ pthread_mutex_lock (&lock);
+ r = blk_read (next_ops, nxdata, blknum, block, err);
+ if (r != -1) {
+ memset (&block[blkoffs], 0, n);
+ r = blk_write (blknum, block, err);
+ }
+ pthread_mutex_unlock (&lock);
+ if (r == -1) {
+ free (block);
+ return -1;
+ }
+
+ count -= n;
+ offset += n;
+ }
+
+ free (block);
+ if (flags & NBDKIT_FLAG_FUA)
+ return cow_flush (next_ops, nxdata, handle, 0, err);
+ return 0;
+}
+
+static int
+cow_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle,
+ uint32_t flags, int *err)
+{
+ int r;
+
+ pthread_mutex_lock (&lock);
+ r = blk_flush ();
+ if (r == -1)
+ *err = errno;
+ pthread_mutex_unlock (&lock);
+ return r;
+}
+
+static struct nbdkit_filter filter = {
+ .name = "cow",
+ .longname = "nbdkit copy-on-write (COW) filter",
+ .version = PACKAGE_VERSION,
+ .load = cow_load,
+ .unload = cow_unload,
+ .open = cow_open,
+ .prepare = cow_prepare,
+ .get_size = cow_get_size,
+ .can_write = cow_can_write,
+ .can_flush = cow_can_flush,
+ .can_trim = cow_can_trim,
+ .can_extents = cow_can_extents,
+ .can_fua = cow_can_fua,
+ .pread = cow_pread,
+ .pwrite = cow_pwrite,
+ .zero = cow_zero,
+ .flush = cow_flush,
+};
+
+NBDKIT_REGISTER_FILTER(filter)
--- /dev/null
+=head1 NAME
+
+nbdkit-cow-filter - nbdkit copy-on-write (COW) filter
+
+=head1 SYNOPSIS
+
+ nbdkit --filter=cow plugin [plugin-args...]
+
+=head1 DESCRIPTION
+
+C<nbdkit-cow-filter> is a filter that makes a temporary writable copy
+on top of a read-only plugin. It can be used to enable writes for
+plugins which only implement read-only access. Note that:
+
+=over 4
+
+=item *
+
+B<Anything written is thrown away as soon as nbdkit exits.>
+
+=item *
+
+All connections to the nbdkit instance see the same view of the disk.
+
+This is different from L<nbd-server(1)> where each connection sees its
+own copy-on-write overlay and simply disconnecting the client throws
+that away. It also allows us to create diffs, see below.
+
+=item *
+
+The plugin is opened read-only (as if the I<-r> flag was passed), but
+you should B<not> pass the I<-r> flag to nbdkit.
+
+=back
+
+Limitations of the filter include:
+
+=over 4
+
+=item *
+
+The underlying file/device must not be resized.
+
+=item *
+
+The underlying plugin must behave “normally”, meaning that it must
+serve the same data to each client.
+
+=back
+
+=head1 PARAMETERS
+
+There are no parameters specific to nbdkit-cow-filter. Any parameters
+are passed through to and processed by the underlying plugin in the
+normal way.
+
+=head1 EXAMPLES
+
+Serve the file F<disk.img>, allowing writes, but do not save any
+changes into the file:
+
+ nbdkit --filter=cow file disk.img
+
+L<nbdkit-xz-plugin(1)> only supports read access, but you can provide
+temporary write access by doing (although this does B<not> save
+changes to the file):
+
+ nbdkit --filter=cow xz disk.xz
+
+=head1 CREATING A DIFF WITH QEMU-IMG
+
+Although nbdkit-cow-filter itself cannot save the differences, it is
+possible to do this using an obscure feature of L<qemu-img(1)>.
+B<nbdkit must remain continuously running during the whole operation,
+otherwise all changes will be lost>.
+
+Run nbdkit:
+
+ nbdkit --filter=cow file disk.img
+
+and then connect with a client and make whatever changes you need.
+At the end, disconnect the client.
+
+Run these C<qemu-img> commands to construct a qcow2 file containing
+the differences:
+
+ qemu-img create -f qcow2 -b nbd:localhost diff.qcow2
+ qemu-img rebase -b disk.img diff.qcow2
+
+F<diff.qcow2> now contains the differences between the base
+(F<disk.img>) and the changes stored in nbdkit-cow-filter. C<nbdkit>
+can now be killed.
+
+=head1 ENVIRONMENT VARIABLES
+
+=over 4
+
+=item C<TMPDIR>
+
+The copy-on-write changes are stored in a temporary file located in
+F</var/tmp> by default. You can override this location by setting the
+C<TMPDIR> environment variable before starting nbdkit.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-file-plugin(1)>,
+L<nbdkit-xz-plugin(1)>,
+L<nbdkit-filter(3)>,
+L<qemu-img(1)>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-delay-filter.pod
+
+filter_LTLIBRARIES = nbdkit-delay-filter.la
+
+nbdkit_delay_filter_la_SOURCES = \
+ delay.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+
+nbdkit_delay_filter_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_delay_filter_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_delay_filter_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/filters/filters.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-delay-filter.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-delay-filter.1: nbdkit-delay-filter.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
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+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
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+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
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+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
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+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
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+#
+# * Neither the name of Red Hat nor the names of its contributors may be
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <limits.h>
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <time.h>
+
+#include <nbdkit-filter.h>
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+static int delay_read_ms = 0; /* read delay (milliseconds) */
+static int delay_write_ms = 0; /* write delay (milliseconds) */
+static int delay_zero_ms = 0; /* zero delay (milliseconds) */
+static int delay_trim_ms = 0; /* trim delay (milliseconds) */
+static int delay_extents_ms = 0;/* extents delay (milliseconds) */
+
+static int
+parse_delay (const char *key, const char *value)
+{
+ size_t len = strlen (value);
+ int r;
+
+ if (len > 2 && strcmp (&value[len-2], "ms") == 0) {
+ if (sscanf (value, "%d", &r) == 1 && r >= 0)
+ return r;
+ else {
+ nbdkit_error ("cannot parse %s in milliseconds parameter: %s",
+ key, value);
+ return -1;
+ }
+ }
+ else {
+ if (sscanf (value, "%d", &r) == 1 && r >= 0) {
+ if (r * 1000LL > INT_MAX) {
+ nbdkit_error ("seconds parameter %s is too large: %s",
+ key, value);
+ return -1;
+ }
+ return r * 1000;
+ }
+ else {
+ nbdkit_error ("cannot parse %s in seconds parameter: %s",
+ key, value);
+ return -1;
+ }
+ }
+}
+
+static int
+delay (int ms, int *err)
+{
+ if (ms > 0) {
+ const struct timespec ts = {
+ .tv_sec = ms / 1000,
+ .tv_nsec = (ms % 1000) * 1000000,
+ };
+ if (nanosleep (&ts, NULL) == -1) {
+ nbdkit_error ("nanosleep: %m");
+ *err = errno;
+ return -1;
+ }
+ }
+ return 0;
+}
+
+static int
+read_delay (int *err)
+{
+ return delay (delay_read_ms, err);
+}
+
+static int
+write_delay (int *err)
+{
+ return delay (delay_write_ms, err);
+}
+
+static int
+zero_delay (int *err)
+{
+ return delay (delay_zero_ms, err);
+}
+
+static int
+trim_delay (int *err)
+{
+ return delay (delay_trim_ms, err);
+}
+
+static int
+extents_delay (int *err)
+{
+ return delay (delay_extents_ms, err);
+}
+
+/* Called for each key=value passed on the command line. */
+static int
+delay_config (nbdkit_next_config *next, void *nxdata,
+ const char *key, const char *value)
+{
+ if (strcmp (key, "rdelay") == 0 ||
+ strcmp (key, "delay-read") == 0 ||
+ strcmp (key, "delay-reads") == 0) {
+ delay_read_ms = parse_delay (key, value);
+ if (delay_read_ms == -1)
+ return -1;
+ return 0;
+ }
+ else if (strcmp (key, "wdelay") == 0) {
+ delay_write_ms = parse_delay (key, value);
+ if (delay_write_ms == -1)
+ return -1;
+ /* Historically wdelay set all write-related delays. */
+ delay_zero_ms = delay_trim_ms = delay_write_ms;
+ return 0;
+ }
+ else if (strcmp (key, "delay-write") == 0 ||
+ strcmp (key, "delay-writes") == 0) {
+ delay_write_ms = parse_delay (key, value);
+ if (delay_write_ms == -1)
+ return -1;
+ return 0;
+ }
+ else if (strcmp (key, "delay-zero") == 0 ||
+ strcmp (key, "delay-zeroes") == 0) {
+ delay_zero_ms = parse_delay (key, value);
+ if (delay_zero_ms == -1)
+ return -1;
+ return 0;
+ }
+ else if (strcmp (key, "delay-trim") == 0 ||
+ strcmp (key, "delay-trims") == 0 ||
+ strcmp (key, "delay-discard") == 0 ||
+ strcmp (key, "delay-discards") == 0) {
+ delay_trim_ms = parse_delay (key, value);
+ if (delay_trim_ms == -1)
+ return -1;
+ return 0;
+ }
+ else if (strcmp (key, "delay-extent") == 0 ||
+ strcmp (key, "delay-extents") == 0) {
+ delay_extents_ms = parse_delay (key, value);
+ if (delay_extents_ms == -1)
+ return -1;
+ return 0;
+ }
+ else
+ return next (nxdata, key, value);
+}
+
+#define delay_config_help \
+ "rdelay=<NN>[ms] Read delay in seconds/milliseconds.\n" \
+ "delay-read=<NN>[ms] Read delay in seconds/milliseconds.\n" \
+ "delay-write=<NN>[ms] Write delay in seconds/milliseconds.\n" \
+ "delay-zero=<NN>[ms] Zero delay in seconds/milliseconds.\n" \
+ "delay-trim=<NN>[ms] Trim delay in seconds/milliseconds.\n" \
+ "delay-extents=<NN>[ms] Extents delay in seconds/milliseconds.\n" \
+ "wdelay=<NN>[ms] Write, zero and trim delay in secs/msecs."
+
+/* Read data. */
+static int
+delay_pread (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ if (read_delay (err) == -1)
+ return -1;
+ return next_ops->pread (nxdata, buf, count, offset, flags, err);
+}
+
+/* Write data. */
+static int
+delay_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle,
+ const void *buf, uint32_t count, uint64_t offset, uint32_t flags,
+ int *err)
+{
+ if (write_delay (err) == -1)
+ return -1;
+ return next_ops->pwrite (nxdata, buf, count, offset, flags, err);
+}
+
+/* Zero data. */
+static int
+delay_zero (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset, uint32_t flags,
+ int *err)
+{
+ if (zero_delay (err) == -1)
+ return -1;
+ return next_ops->zero (nxdata, count, offset, flags, err);
+}
+
+/* Trim data. */
+static int
+delay_trim (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ if (trim_delay (err) == -1)
+ return -1;
+ return next_ops->trim (nxdata, count, offset, flags, err);
+}
+
+/* Extents. */
+static int
+delay_extents (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset, uint32_t flags,
+ struct nbdkit_extents *extents, int *err)
+{
+ if (extents_delay (err) == -1)
+ return -1;
+ return next_ops->extents (nxdata, count, offset, flags, extents, err);
+}
+
+static struct nbdkit_filter filter = {
+ .name = "delay",
+ .longname = "nbdkit delay filter",
+ .version = PACKAGE_VERSION,
+ .config = delay_config,
+ .config_help = delay_config_help,
+ .pread = delay_pread,
+ .pwrite = delay_pwrite,
+ .zero = delay_zero,
+ .trim = delay_trim,
+ .extents = delay_extents,
+};
+
+NBDKIT_REGISTER_FILTER(filter)
--- /dev/null
+=head1 NAME
+
+nbdkit-delay-filter - nbdkit delay filter
+
+=head1 SYNOPSIS
+
+ nbdkit --filter=delay plugin rdelay=SECS wdelay=SECS [plugin-args...]
+
+ nbdkit --filter=delay plugin rdelay=NNms wdelay=NNms [plugin-args...]
+
+ nbdkit --filter=delay plugin [plugin-args ...]
+ delay-read=(SECS|NNms) delay-write=(SECS|NNms)
+ delay-zero=(SECS|NNms) delay-trim=(SECS|NNms)
+ delay-extents=(SECS|NNms)
+
+=head1 DESCRIPTION
+
+C<nbdkit-delay-filter> is a filter that delays read and write requests
+by some seconds or milliseconds. This is used to simulate a slow or
+remote server, or to test certain kinds of race conditions in Linux.
+To limit server bandwidth use L<nbdkit-rate-filter(1)> instead.
+
+=head1 EXAMPLES
+
+Delays reads and writes by 100ms:
+
+ nbdkit --filter=delay file disk.img rdelay=100ms wdelay=100ms
+
+Delay only zero operations by 1 second, nothing else is affected:
+
+ nbdkit --filter=delay file disk.img delay-zero=1
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<rdelay=>SECS
+
+=item B<rdelay=>NNB<ms>
+
+=item B<delay-read=>SECS
+
+=item B<delay-read=>NNB<ms>
+
+Delay read operations by C<SECS> seconds or C<NN> milliseconds.
+
+The two forms C<rdelay> and C<delay-read> work identically.
+
+=item B<delay-write=>SECS
+
+=item B<delay-write=>NNB<ms>
+
+Delay write operations by C<SECS> seconds or C<NN> milliseconds.
+
+=item B<delay-zero=>SECS
+
+=item B<delay-zero=>NNB<ms>
+
+Delay zero operations by C<SECS> seconds or C<NN> milliseconds.
+
+=item B<delay-trim=>SECS
+
+=item B<delay-trim=>NNB<ms>
+
+Delay trim/discard operations by C<SECS> seconds or C<NN> milliseconds.
+
+=item B<delay-extents=>SECS
+
+=item B<delay-extents=>NNB<ms>
+
+Delay block status (extents) operations by C<SECS> seconds or C<NN>
+milliseconds.
+
+=item B<wdelay=>SECS
+
+=item B<wdelay=>NNB<ms>
+
+Delay write, zero and trim operations by C<SECS> seconds or C<NN>
+milliseconds.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-filter(3)>,
+L<nbdkit-rate-filter(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-error-filter.pod
+
+filter_LTLIBRARIES = nbdkit-error-filter.la
+
+nbdkit_error_filter_la_SOURCES = \
+ error.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+
+nbdkit_error_filter_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include
+nbdkit_error_filter_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_error_filter_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/filters/filters.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-error-filter.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-error-filter.1: nbdkit-error-filter.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+ for file in $$dist_files; do \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ if test -d $$d/$$file; then \
+ dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test -d "$(distdir)/$$file"; then \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+ else \
+ test -f "$(distdir)/$$file" \
+ || cp -p $$d/$$file "$(distdir)/$$file" \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES) $(MANS)
+installdirs:
+ for dir in "$(DESTDIR)$(filterdir)" "$(DESTDIR)$(man1dir)"; do \
+ test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+ done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+ if test -z '$(STRIP)'; then \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ install; \
+ else \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
+
+clean-generic:
+ -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-filterLTLIBRARIES clean-generic clean-libtool \
+ mostlyclean-am
+
+distclean: distclean-am
+ -rm -f ./$(DEPDIR)/nbdkit_error_filter_la-error.Plo
+ -rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-filterLTLIBRARIES install-man
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man: install-man1
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f ./$(DEPDIR)/nbdkit_error_filter_la-error.Plo
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-filterLTLIBRARIES uninstall-man
+
+uninstall-man: uninstall-man1
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+ clean-filterLTLIBRARIES clean-generic clean-libtool \
+ cscopelist-am ctags ctags-am distclean distclean-compile \
+ distclean-generic distclean-libtool distclean-tags distdir dvi \
+ dvi-am html html-am info info-am install install-am \
+ install-data install-data-am install-dvi install-dvi-am \
+ install-exec install-exec-am install-filterLTLIBRARIES \
+ install-html install-html-am install-info install-info-am \
+ install-man install-man1 install-pdf install-pdf-am install-ps \
+ install-ps-am install-strip installcheck installcheck-am \
+ installdirs maintainer-clean maintainer-clean-generic \
+ mostlyclean mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
+ uninstall-am uninstall-filterLTLIBRARIES uninstall-man \
+ uninstall-man1
+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-error-filter.1: nbdkit-error-filter.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+#include <unistd.h>
+#include <time.h>
+#include <errno.h>
+
+#include <pthread.h>
+
+#include <nbdkit-filter.h>
+
+#include "random.h"
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+struct error_settings {
+ int error; /* errno, eg. EIO */
+ double rate; /* rate, 0.0 = never, 1.0 = always */
+ char *file; /* error file, NULL = no file */
+};
+
+#define ERROR_DEFAULT { .error = EIO, .rate = 0, .file = NULL }
+
+/* Settings for each type of request, read from the command line. */
+static struct error_settings pread_settings = ERROR_DEFAULT;
+static struct error_settings pwrite_settings = ERROR_DEFAULT;
+static struct error_settings trim_settings = ERROR_DEFAULT;
+static struct error_settings zero_settings = ERROR_DEFAULT;
+static struct error_settings extents_settings = ERROR_DEFAULT;
+
+/* Random state.
+ * This must only be accessed when holding the lock (except for load).
+ */
+static struct random_state random_state;
+static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+
+static void
+error_load (void)
+{
+ xsrandom (time (NULL), &random_state);
+}
+
+static void
+error_unload (void)
+{
+ free (pread_settings.file);
+ free (pwrite_settings.file);
+ free (trim_settings.file);
+ free (zero_settings.file);
+ free (extents_settings.file);
+}
+
+static const struct { const char *name; int error; } errors[] = {
+ { "EPERM", EPERM },
+ { "EIO", EIO },
+ { "ENOMEM", ENOMEM },
+ { "EINVAL", EINVAL },
+ { "ENOSPC", ENOSPC },
+ { "ESHUTDOWN", ESHUTDOWN },
+ { NULL }
+};
+
+static const char *
+error_as_string (int error)
+{
+ size_t i;
+
+ for (i = 0; errors[i].name != NULL; ++i) {
+ if (errors[i].error == error)
+ return errors[i].name;
+ }
+ abort ();
+}
+
+static int
+parse_error (const char *key, const char *value, int *retp)
+{
+ size_t i;
+
+ for (i = 0; errors[i].name != NULL; ++i) {
+ if (strcmp (value, errors[i].name) == 0) {
+ *retp = errors[i].error;
+ return 0;
+ }
+ }
+
+ nbdkit_error ("%s: unknown error name '%s'", key, value);
+ return -1;
+}
+
+static int
+parse_error_rate (const char *key, const char *value, double *retp)
+{
+ double d;
+ int n;
+
+ if (sscanf (value, "%lg%n", &d, &n) == 1) {
+ if (strcmp (&value[n], "%") == 0) /* percentage */
+ d /= 100.0;
+ else if (strcmp (&value[n], "") == 0) /* probability */
+ ;
+ else
+ goto bad_parse;
+ }
+ else {
+ bad_parse:
+ nbdkit_error ("%s: could not parse rate '%s'", key, value);
+ return -1;
+ }
+ if (d < 0 || d > 1) {
+ nbdkit_error ("%s: rate out of range: '%s' parsed as %g", key, value, d);
+ return -1;
+ }
+ *retp = d;
+ return 0;
+}
+
+/* Called for each key=value passed on the command line. */
+static int
+error_config (nbdkit_next_config *next, void *nxdata,
+ const char *key, const char *value)
+{
+ int i;
+ double d;
+
+ if (strcmp (key, "error") == 0) {
+ if (parse_error (key, value, &i) == -1)
+ return -1;
+ pread_settings.error = pwrite_settings.error =
+ trim_settings.error = zero_settings.error =
+ extents_settings.error = i;
+ return 0;
+ }
+ else if (strcmp (key, "error-pread") == 0)
+ return parse_error (key, value, &pread_settings.error);
+ else if (strcmp (key, "error-pwrite") == 0)
+ return parse_error (key, value, &pwrite_settings.error);
+ else if (strcmp (key, "error-trim") == 0)
+ return parse_error (key, value, &trim_settings.error);
+ else if (strcmp (key, "error-zero") == 0)
+ return parse_error (key, value, &zero_settings.error);
+ else if (strcmp (key, "error-extents") == 0)
+ return parse_error (key, value, &extents_settings.error);
+
+ else if (strcmp (key, "error-rate") == 0) {
+ if (parse_error_rate (key, value, &d) == -1)
+ return -1;
+ pread_settings.rate = pwrite_settings.rate =
+ trim_settings.rate = zero_settings.rate =
+ extents_settings.rate = d;
+ return 0;
+ }
+ else if (strcmp (key, "error-pread-rate") == 0)
+ return parse_error_rate (key, value, &pread_settings.rate);
+ else if (strcmp (key, "error-pwrite-rate") == 0)
+ return parse_error_rate (key, value, &pwrite_settings.rate);
+ else if (strcmp (key, "error-trim-rate") == 0)
+ return parse_error_rate (key, value, &trim_settings.rate);
+ else if (strcmp (key, "error-zero-rate") == 0)
+ return parse_error_rate (key, value, &zero_settings.rate);
+ else if (strcmp (key, "error-extents-rate") == 0)
+ return parse_error_rate (key, value, &extents_settings.rate);
+
+ /* NB: We are using nbdkit_absolute_path here because the trigger
+ * file probably doesn't exist yet.
+ */
+ else if (strcmp (key, "error-file") == 0) {
+ free (pread_settings.file);
+ pread_settings.file = nbdkit_absolute_path (value);
+ free (pwrite_settings.file);
+ pwrite_settings.file = nbdkit_absolute_path (value);
+ free (trim_settings.file);
+ trim_settings.file = nbdkit_absolute_path (value);
+ free (zero_settings.file);
+ zero_settings.file = nbdkit_absolute_path (value);
+ free (extents_settings.file);
+ extents_settings.file = nbdkit_absolute_path (value);
+ return 0;
+ }
+ else if (strcmp (key, "error-pread-file") == 0) {
+ free (pread_settings.file);
+ pread_settings.file = nbdkit_absolute_path (value);
+ return 0;
+ }
+ else if (strcmp (key, "error-pwrite-file") == 0) {
+ free (pwrite_settings.file);
+ pwrite_settings.file = nbdkit_absolute_path (value);
+ return 0;
+ }
+ else if (strcmp (key, "error-trim-file") == 0) {
+ free (trim_settings.file);
+ trim_settings.file = nbdkit_absolute_path (value);
+ return 0;
+ }
+ else if (strcmp (key, "error-zero-file") == 0) {
+ free (zero_settings.file);
+ zero_settings.file = nbdkit_absolute_path (value);
+ return 0;
+ }
+ else if (strcmp (key, "error-extents-file") == 0) {
+ free (extents_settings.file);
+ extents_settings.file = nbdkit_absolute_path (value);
+ return 0;
+ }
+
+ else
+ return next (nxdata, key, value);
+}
+
+#define error_config_help \
+ "error=EPERM|EIO|ENOMEM|EINVAL|ENOSPC|ESHUTDOWN\n" \
+ " The error indication to return.\n" \
+ "error-rate=0%..100%|0..1 Rate of errors to generate.\n" \
+ "error-file=TRIGGER Set trigger filename.\n" \
+ "error-pread*, error-pwrite*, error-trim*, error-zero*, error-extents*\n" \
+ " Apply settings only to read/write/etc"
+
+/* This function injects a random error. */
+static bool
+random_error (const struct error_settings *error_settings,
+ const char *fn, int *err)
+{
+ uint64_t rand;
+
+ if (error_settings->rate <= 0) /* 0% = never inject */
+ return false;
+
+ /* Does the trigger file exist? */
+ if (error_settings->file != NULL) {
+ if (access (error_settings->file, F_OK) == -1)
+ return false;
+ }
+
+ if (error_settings->rate >= 1) /* 100% = always inject */
+ goto inject;
+
+ /* To avoid the question if (double)1.0 * UINT64_MAX is
+ * representable in a 64 bit integer, and because we don't need all
+ * this precision anyway, let's work in 32 bits.
+ */
+ pthread_mutex_lock (&lock);
+ rand = xrandom (&random_state) & UINT32_MAX;
+ pthread_mutex_unlock (&lock);
+ if (rand >= error_settings->rate * UINT32_MAX)
+ return false;
+
+ inject:
+ *err = error_settings->error;
+ nbdkit_error ("injecting %s error into %s", error_as_string (*err), fn);
+ return true;
+}
+
+/* Read data. */
+static int
+error_pread (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ if (random_error (&pread_settings, "pread", err))
+ return -1;
+
+ return next_ops->pread (nxdata, buf, count, offset, flags, err);
+}
+
+/* Write data. */
+static int
+error_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle,
+ const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ if (random_error (&pwrite_settings, "pwrite", err))
+ return -1;
+
+ return next_ops->pwrite (nxdata, buf, count, offset, flags, err);
+}
+
+/* Trim data. */
+static int
+error_trim (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ if (random_error (&trim_settings, "trim", err))
+ return -1;
+
+ return next_ops->trim (nxdata, count, offset, flags, err);
+}
+
+/* Zero data. */
+static int
+error_zero (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ if (random_error (&zero_settings, "zero", err))
+ return -1;
+
+ return next_ops->zero (nxdata, count, offset, flags, err);
+}
+
+/* Extents. */
+static int
+error_extents (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset,
+ uint32_t flags, struct nbdkit_extents *extents, int *err)
+{
+ if (random_error (&extents_settings, "extents", err))
+ return -1;
+
+ return next_ops->extents (nxdata, count, offset, flags, extents, err);
+}
+
+static struct nbdkit_filter filter = {
+ .name = "error",
+ .longname = "nbdkit error filter",
+ .version = PACKAGE_VERSION,
+ .load = error_load,
+ .unload = error_unload,
+ .config = error_config,
+ .config_help = error_config_help,
+ .pread = error_pread,
+ .pwrite = error_pwrite,
+ .trim = error_trim,
+ .zero = error_zero,
+ .extents = error_extents,
+};
+
+NBDKIT_REGISTER_FILTER(filter)
--- /dev/null
+=head1 NAME
+
+nbdkit-error-filter - inject errors for testing clients
+
+=head1 SYNOPSIS
+
+ nbdkit --filter=error PLUGIN
+ [error=EPERM|EIO|ENOMEM|EINVAL|ENOSPC|ESHUTDOWN]
+ [error-rate=10%|0.1]
+ [error-file=/tmp/inject]
+ [error-pread=...] [error-pread-rate=...] [error-pread-file=...]
+ [error-pwrite=...] [error-pwrite-rate=...] [error-pwrite-file=...]
+ [error-trim=...] [error-trim-rate=...] [error-trim-file=...]
+ [error-zero=...] [error-zero-rate=...] [error-zero-file=...]
+ [error-extents=...] [error-extents-rate=...] [error-extents-file=...]
+
+=head1 DESCRIPTION
+
+C<nbdkit-error-filter> is an nbdkit filter that injects random errors
+into replies from the server. This is used for testing that NBD
+clients can handle errors.
+
+All parameters are optional, but you should usually specify one of the
+C<error-rate> or C<error-*-rate> parameters,
+B<otherwise this filter will do nothing>.
+
+=head1 EXAMPLES
+
+Inject a low rate of errors randomly into the connection:
+
+ nbdkit --filter=error file disk.img error-rate=1%
+
+Reading, trimming and extents (block status) requests will be
+successful, but all writes and zeroing will return "No space left on
+device":
+
+ nbdkit --filter=error file disk.img \
+ error=ENOSPC \
+ error-pwrite-rate=100% \
+ error-zero-rate=100%
+
+To make all connections fail hard 60 seconds after the server is
+started, use:
+
+ rm -f /tmp/inject
+ nbdkit --filter=error file disk.img \
+ error-rate=100% \
+ error-file=/tmp/inject
+ sleep 60; touch /tmp/inject
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<error=EPERM|EIO|ENOMEM|EINVAL|ENOSPC|ESHUTDOWN>
+
+When a random error is injected, you can select which one from the
+range of possible NBD errors (the NBD protocol only supports a limited
+range of error codes).
+
+This parameter is optional and the default is C<EIO>
+("Input/output error").
+
+=item B<error-rate=>NB<%>
+
+=item B<error-rate=>0..1
+
+The rate of injected errors per NBD request. This can be expressed as
+either a percentage between C<0%> and C<100%> or as a probability
+between C<0> and C<1>. If C<0%> or C<0> is used then no errors are
+ever injected, and if C<100%> or C<1> is used then all requests return
+errors.
+
+This parameter is optional and the default is C<0%>.
+B<Unless you set this, the filter will do nothing.>
+
+=item B<error-file=>FILENAME
+
+Errors will only be injected when F<FILENAME> exists. (Note you must
+also specify the C<error-rate>).
+
+You can use this for fine-grained control over when to inject errors,
+for example if you want to trigger an error at an exact moment during
+a test, arrange for this file to be created at the appropriate time.
+Or conversely to test error recovery in a client, create the file
+initially, and then delete it to check the client can recover.
+
+This parameter is optional.
+
+=item B<error-pread>, B<error-pread-rate>, B<error-pread-file>.
+
+Same as C<error>, C<error-rate> and C<error-file> but only apply the
+settings to NBD pread requests.
+
+=item B<error-pwrite>, B<error-pwrite-rate>, B<error-pwrite-file>.
+
+Same as C<error>, C<error-rate> and C<error-file> but only apply the
+settings to NBD pwrite requests.
+
+=item B<error-trim>, B<error-trim-rate>, B<error-trim-file>.
+
+Same as C<error>, C<error-rate> and C<error-file> but only apply the
+settings to NBD trim requests.
+
+=item B<error-zero>, B<error-zero-rate>, B<error-zero-file>.
+
+Same as C<error>, C<error-rate> and C<error-file> but only apply the
+settings to NBD zero requests.
+
+=item B<error-extents>, B<error-extents-rate>, B<error-extents-file>.
+
+Same as C<error>, C<error-rate> and C<error-file> but only apply the
+settings to NBD block status requests to read extents.
+
+=back
+
+=head1 NOTES
+
+=head2 Peculiar debug output
+
+If you are looking at the debugging output (using C<nbdkit -f -v>)
+then you may see peculiar "errors" appearing when using this filter,
+for example:
+
+ nbdkit: file.9: debug: error: pread count=1024 offset=0 flags=0x0
+
+In fact these are not errors, nbdkit core is simply printing the name
+of the filter which happens to be C<"error">. When this filter
+injects an error you will see something like:
+
+ nbdkit: file.4: error: injecting ENOSPC error into pwrite
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-file-plugin(1)>,
+L<nbdkit-full-plugin(1)>,
+L<nbdkit-filter(3)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# This linker script controls the visibility of symbols in filters.
+# Filters only need to export the "filter_init" function and debug
+# flags.
+#
+# Use of this linker script is entirely optional. It's just for
+# hygiene.
+
+{
+ global:
+ filter_init;
+ *_debug_*;
+
+ # Everything else is hidden.
+ local: *;
+};
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-fua-filter.pod
+
+filter_LTLIBRARIES = nbdkit-fua-filter.la
+
+nbdkit_fua_filter_la_SOURCES = \
+ fua.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+
+nbdkit_fua_filter_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_fua_filter_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_fua_filter_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/filters/filters.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-fua-filter.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-fua-filter.1: nbdkit-fua-filter.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
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+
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+ @list='$(filter_LTLIBRARIES)'; \
+ locs=`for p in $$list; do echo $$p; done | \
+ sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+ sort -u`; \
+ test -z "$$locs" || { \
+ echo rm -f $${locs}; \
+ rm -f $${locs}; \
+ }
+
+nbdkit-fua-filter.la: $(nbdkit_fua_filter_la_OBJECTS) $(nbdkit_fua_filter_la_DEPENDENCIES) $(EXTRA_nbdkit_fua_filter_la_DEPENDENCIES)
+ $(AM_V_CCLD)$(nbdkit_fua_filter_la_LINK) -rpath $(filterdir) $(nbdkit_fua_filter_la_OBJECTS) $(nbdkit_fua_filter_la_LIBADD) $(LIBS)
+
+mostlyclean-compile:
+ -rm -f *.$(OBJEXT)
+
+distclean-compile:
+ -rm -f *.tab.c
+
+@AMDEP_TRUE@@am__include@ @am__quote@./$(DEPDIR)/nbdkit_fua_filter_la-fua.Plo@am__quote@ # am--include-marker
+
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+ @echo '# dummy' >$@-t && $(am__mv) $@-t $@
+
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+
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+
+mostlyclean-libtool:
+ -rm -f *.lo
+
+clean-libtool:
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+ uninstall-man1
+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-fua-filter.1: nbdkit-fua-filter.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdbool.h>
+#include <assert.h>
+
+#include <nbdkit-filter.h>
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+static enum FuaMode {
+ NONE,
+ EMULATE,
+ NATIVE,
+ FORCE,
+} fuamode;
+
+static int
+fua_config (nbdkit_next_config *next, void *nxdata,
+ const char *key, const char *value)
+{
+ if (strcmp (key, "fuamode") == 0) {
+ if (strcmp (value, "none") == 0)
+ fuamode = NONE;
+ if (strcmp (value, "emulate") == 0)
+ fuamode = EMULATE;
+ else if (strcmp (value, "native") == 0)
+ fuamode = NATIVE;
+ else if (strcmp (value, "force") == 0)
+ fuamode = FORCE;
+ else {
+ nbdkit_error ("unknown fuamode '%s'", value);
+ return -1;
+ }
+ return 0;
+ }
+ return next (nxdata, key, value);
+}
+
+#define fua_config_help \
+ "fuamode=<MODE> One of 'none' (default), 'emulate', 'native', 'force'.\n" \
+
+/* Check that desired mode is supported by plugin. */
+static int
+fua_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle)
+{
+ int r;
+
+ switch (fuamode) {
+ case NONE:
+ break;
+ case EMULATE:
+ r = next_ops->can_flush (nxdata);
+ if (r == -1)
+ return -1;
+ if (r == 0) {
+ nbdkit_error ("fuamode 'emulate' requires plugin flush support");
+ return -1;
+ }
+ break;
+ case NATIVE:
+ case FORCE:
+ r = next_ops->can_fua (nxdata);
+ if (r == -1)
+ return -1;
+ if (r == NBDKIT_FUA_NONE) {
+ nbdkit_error ("fuamode '%s' requires plugin fua support",
+ fuamode == EMULATE ? "emulate" : "force");
+ return -1;
+ }
+ break;
+ }
+ return 0;
+}
+
+/* Advertise proper flush support. */
+static int
+fua_can_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle)
+{
+ if (fuamode == FORCE)
+ return 1; /* Advertise our no-op flush, even if plugin lacks it */
+ return next_ops->can_flush (nxdata);
+}
+
+/* Advertise desired fua mode. */
+static int
+fua_can_fua (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle)
+{
+ switch (fuamode) {
+ case NONE:
+ return NBDKIT_FUA_NONE;
+ case EMULATE:
+ return NBDKIT_FUA_EMULATE;
+ case NATIVE:
+ case FORCE:
+ return NBDKIT_FUA_NATIVE;
+ }
+ abort ();
+}
+
+static int
+fua_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, const void *buf, uint32_t count, uint64_t offs,
+ uint32_t flags, int *err)
+{
+ int r;
+ bool need_flush = false;
+
+ switch (fuamode) {
+ case NONE:
+ assert (!(flags & NBDKIT_FLAG_FUA));
+ break;
+ case EMULATE:
+ if (flags & NBDKIT_FLAG_FUA) {
+ need_flush = true;
+ flags &= ~NBDKIT_FLAG_FUA;
+ }
+ break;
+ case NATIVE:
+ break;
+ case FORCE:
+ flags |= NBDKIT_FLAG_FUA;
+ break;
+ }
+ r = next_ops->pwrite (nxdata, buf, count, offs, flags, err);
+ if (r != -1 && need_flush)
+ r = next_ops->flush (nxdata, 0, err);
+ return r;
+}
+
+static int
+fua_flush (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t flags, int *err)
+{
+ if (fuamode == FORCE)
+ return 0; /* Nothing to flush, since all writes already used FUA */
+ return next_ops->flush (nxdata, flags, err);
+}
+
+static int
+fua_trim (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offs, uint32_t flags,
+ int *err)
+{
+ int r;
+ bool need_flush = false;
+
+ switch (fuamode) {
+ case NONE:
+ assert (!(flags & NBDKIT_FLAG_FUA));
+ break;
+ case EMULATE:
+ if (flags & NBDKIT_FLAG_FUA) {
+ need_flush = true;
+ flags &= ~NBDKIT_FLAG_FUA;
+ }
+ break;
+ case NATIVE:
+ break;
+ case FORCE:
+ flags |= NBDKIT_FLAG_FUA;
+ break;
+ }
+ r = next_ops->trim (nxdata, count, offs, flags, err);
+ if (r != -1 && need_flush)
+ r = next_ops->flush (nxdata, 0, err);
+ return r;
+}
+
+static int
+fua_zero (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offs, uint32_t flags,
+ int *err)
+{
+ int r;
+ bool need_flush = false;
+
+ switch (fuamode) {
+ case NONE:
+ assert (!(flags & NBDKIT_FLAG_FUA));
+ break;
+ case EMULATE:
+ if (flags & NBDKIT_FLAG_FUA) {
+ need_flush = true;
+ flags &= ~NBDKIT_FLAG_FUA;
+ }
+ break;
+ case NATIVE:
+ break;
+ case FORCE:
+ flags |= NBDKIT_FLAG_FUA;
+ break;
+ }
+ r = next_ops->zero (nxdata, count, offs, flags, err);
+ if (r != -1 && need_flush)
+ r = next_ops->flush (nxdata, 0, err);
+ return r;
+}
+
+static struct nbdkit_filter filter = {
+ .name = "fua",
+ .longname = "nbdkit fua filter",
+ .version = PACKAGE_VERSION,
+ .config = fua_config,
+ .config_help = fua_config_help,
+ .prepare = fua_prepare,
+ .can_flush = fua_can_flush,
+ .can_fua = fua_can_fua,
+ .pwrite = fua_pwrite,
+ .flush = fua_flush,
+ .trim = fua_trim,
+ .zero = fua_zero,
+};
+
+NBDKIT_REGISTER_FILTER(filter)
--- /dev/null
+=head1 NAME
+
+nbdkit-fua-filter - nbdkit FUA filter
+
+=head1 SYNOPSIS
+
+ nbdkit --filter=fua plugin [fuamode=MODE] [plugin-args...]
+
+=head1 DESCRIPTION
+
+C<nbdkit-fua-filter> is a filter that intentionally modifies handling
+of the 'Forced Unit Access' (FUA) flag across the NBD protocol. It is
+mainly useful for testing client or server fallbacks, and for
+evaluating timing differences between proper use of FUA compared to a
+full flush.
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<fuamode=none|emulate|native|force>
+
+Optional, controls which mode the filter will use. Mode B<none>
+(default) means that FUA support is not advertised to the client.
+Mode B<emulate> causes the filter to emulate FUA support using the
+plugin's C<flush> callback, regardless of whether the plugin itself
+supports more efficient FUA (or refuses to load if the plugin's
+C<can_flush> callback returns false). Mode B<native> causes the
+filter to advertise native FUA support to earlier filters, useful for
+comparing optimizations of FUA handling when splitting large requests
+into sub-requests (or refuses to load if the plugin's C<can_fua>
+callback returns C<NBDKIT_FUA_NONE>). Mode B<force> causes the filter
+to request FUA on all write transactions, even when the client did not
+request it, and in turn treats client flush requests as a no-op (or
+refuses to load if the plugin's C<can_fua> callback returns
+C<NBDKIT_FUA_NONE>).
+
+=back
+
+=head1 EXAMPLES
+
+Serve the file F<disk.img>, but force the client to submit explicit
+flush requests instead of using C<NBD_CMD_FLAG_FUA>:
+
+ nbdkit --filter=fua file disk.img
+
+Observe that the blocksize filter optimizes its handling of the FUA
+flag based on whether it knows nbdkit will be emulating FUA with a
+flush, by comparing the log filter output on top of different fua
+filter modes:
+
+ nbdkit --filter=blocksize --filter=log --filter=fua file disk.img \
+ maxlen=4k logfile=fua_emulated fuamode=emulate
+ nbdkit --filter=blocksize --filter=log --filter=fua file disk.img \
+ maxlen=4k logfile=fua_native fuamode=native
+
+Serve the file F<disk.img> in write-through mode, where all writes
+from the client are immediately flushed to disk as if the client had
+always requested FUA:
+
+ nbdkit --filter=fua file fuamode=force disk.img
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-file-plugin(1)>,
+L<nbdkit-filter(3)>,
+L<nbdkit-blocksize-filter(1)>,
+L<nbdkit-log-filter(1)>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-log-filter.pod
+
+filter_LTLIBRARIES = nbdkit-log-filter.la
+
+nbdkit_log_filter_la_SOURCES = \
+ log.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+
+nbdkit_log_filter_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_log_filter_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_log_filter_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/filters/filters.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-log-filter.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-log-filter.1: nbdkit-log-filter.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
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+# with or without modifications, as long as this notice is preserved.
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+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
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+#
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+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
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+# * Neither the name of Red Hat nor the names of its contributors may be
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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+
+
+@HAVE_POD_TRUE@nbdkit-log-filter.1: nbdkit-log-filter.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdarg.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <pthread.h>
+#include <sys/time.h>
+#include <assert.h>
+
+#include <nbdkit-filter.h>
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+static uint64_t connections;
+static char *logfilename;
+static FILE *logfile;
+static int append;
+static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+
+static void
+log_unload (void)
+{
+ if (logfilename)
+ fclose (logfile);
+ free (logfilename);
+}
+
+/* Called for each key=value passed on the command line. */
+static int
+log_config (nbdkit_next_config *next, void *nxdata,
+ const char *key, const char *value)
+{
+ if (strcmp (key, "logfile") == 0) {
+ free (logfilename);
+ logfilename = strdup (value);
+ if (!logfilename) {
+ nbdkit_error ("strdup: %m");
+ return -1;
+ }
+ return 0;
+ }
+ if (strcmp (key, "logappend") == 0) {
+ append = nbdkit_parse_bool (value);
+ if (append < 0)
+ return -1;
+ return 0;
+ }
+ return next (nxdata, key, value);
+}
+
+/* Open the logfile. */
+static int
+log_config_complete (nbdkit_next_config_complete *next, void *nxdata)
+{
+ if (!logfilename) {
+ nbdkit_error ("missing logfile= parameter for the log filter");
+ return -1;
+ }
+ logfile = fopen (logfilename, append ? "a" : "w");
+ if (!logfile) {
+ nbdkit_error ("fopen: %m");
+ return -1;
+ }
+
+ return next (nxdata);
+}
+
+#define log_config_help \
+ "logfile=<FILE> (required) The file to place the log in.\n" \
+ "logappend=<BOOL> True to append to the log (default false).\n"
+
+struct handle {
+ uint64_t connection;
+ uint64_t id;
+};
+
+/* Compute the next id number on the current connection. */
+static uint64_t
+get_id (struct handle *h)
+{
+ uint64_t r;
+
+ pthread_mutex_lock (&lock);
+ r = ++h->id;
+ pthread_mutex_unlock (&lock);
+ return r;
+}
+
+/* Output a timestamp and the log message. */
+static void __attribute__ ((format (printf, 4, 5)))
+output (struct handle *h, const char *act, uint64_t id, const char *fmt, ...)
+{
+ va_list args;
+ struct timeval tv;
+ struct tm tm;
+ char timestamp[27] = "Time unknown";
+
+ /* Logging is best effort, so ignore failure to get timestamp */
+ if (!gettimeofday (&tv, NULL))
+ {
+ size_t s;
+
+ gmtime_r (&tv.tv_sec, &tm);
+ s = strftime (timestamp, sizeof timestamp - sizeof ".000000" + 1,
+ "%F %T", &tm);
+ assert (s);
+ snprintf (timestamp + s, sizeof timestamp - s, ".%06ld",
+ 0L + tv.tv_usec);
+ }
+ flockfile (logfile);
+ fprintf (logfile, "%s connection=%" PRIu64 " %s ", timestamp, h->connection,
+ act);
+ if (id)
+ fprintf (logfile, "id=%" PRIu64 " ", id);
+ va_start (args, fmt);
+ vfprintf (logfile, fmt, args);
+ va_end (args);
+ fputc ('\n', logfile);
+ fflush (logfile);
+ funlockfile (logfile);
+}
+
+/* Shared code for a nicer log of return value */
+static void
+output_return (struct handle *h, const char *act, uint64_t id, int r, int *err)
+{
+ const char *s = "Other=>EINVAL";
+
+ /* Only decode what connections.c:nbd_errno() recognizes */
+ if (r == -1) {
+ switch (*err) {
+ case EROFS:
+ s = "EROFS=>EPERM";
+ break;
+ case EPERM:
+ s = "EPERM";
+ break;
+ case EIO:
+ s = "EIO";
+ break;
+ case ENOMEM:
+ s = "ENOMEM";
+ break;
+#ifdef EDQUOT
+ case EDQUOT:
+ s = "EDQUOT=>ENOSPC";
+ break;
+#endif
+ case EFBIG:
+ s = "EFBIG=>ENOSPC";
+ break;
+ case ENOSPC:
+ s = "ENOSPC";
+ break;
+#ifdef ESHUTDOWN
+ case ESHUTDOWN:
+ s = "ESHUTDOWN";
+ break;
+#endif
+ case EINVAL:
+ s = "EINVAL";
+ break;
+ }
+ }
+ else {
+ s = "Success";
+ }
+ output (h, act, id, "return=%d (%s)", r, s);
+}
+
+/* Open a connection. */
+static void *
+log_open (nbdkit_next_open *next, void *nxdata, int readonly)
+{
+ struct handle *h;
+
+ if (next (nxdata, readonly) == -1)
+ return NULL;
+
+ h = malloc (sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+
+ pthread_mutex_lock (&lock);
+ h->connection = ++connections;
+ pthread_mutex_unlock (&lock);
+ h->id = 0;
+ return h;
+}
+
+static void
+log_close (void *handle)
+{
+ struct handle *h = handle;
+
+ free (h);
+}
+
+static int
+log_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle)
+{
+ struct handle *h = handle;
+ int64_t size = next_ops->get_size (nxdata);
+ int w = next_ops->can_write (nxdata);
+ int f = next_ops->can_flush (nxdata);
+ int r = next_ops->is_rotational (nxdata);
+ int t = next_ops->can_trim (nxdata);
+ int z = next_ops->can_zero (nxdata);
+ int F = next_ops->can_fua (nxdata);
+
+ if (size < 0 || w < 0 || f < 0 || r < 0 || t < 0 || z < 0 || F < 0)
+ return -1;
+
+ output (h, "Connect", 0, "size=0x%" PRIx64 " write=%d flush=%d "
+ "rotational=%d trim=%d zero=%d fua=%d", size, w, f, r, t, z, F);
+ return 0;
+}
+
+static int
+log_finalize (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle)
+{
+ struct handle *h = handle;
+
+ output (h, "Disconnect", 0, "transactions=%" PRId64, h->id);
+ return 0;
+}
+
+/* Read data. */
+static int
+log_pread (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, void *buf, uint32_t count, uint64_t offs,
+ uint32_t flags, int *err)
+{
+ struct handle *h = handle;
+ uint64_t id = get_id (h);
+ int r;
+
+ assert (!flags);
+ output (h, "Read", id, "offset=0x%" PRIx64 " count=0x%x ...",
+ offs, count);
+ r = next_ops->pread (nxdata, buf, count, offs, flags, err);
+ output_return (h, "...Read", id, r, err);
+ return r;
+}
+
+/* Write data. */
+static int
+log_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, const void *buf, uint32_t count, uint64_t offs,
+ uint32_t flags, int *err)
+{
+ struct handle *h = handle;
+ uint64_t id = get_id (h);
+ int r;
+
+ assert (!(flags & ~NBDKIT_FLAG_FUA));
+ output (h, "Write", id, "offset=0x%" PRIx64 " count=0x%x fua=%d ...",
+ offs, count, !!(flags & NBDKIT_FLAG_FUA));
+ r = next_ops->pwrite (nxdata, buf, count, offs, flags, err);
+ output_return (h, "...Write", id, r, err);
+ return r;
+}
+
+/* Flush. */
+static int
+log_flush (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle,
+ uint32_t flags, int *err)
+{
+ struct handle *h = handle;
+ uint64_t id = get_id (h);
+ int r;
+
+ assert (!flags);
+ output (h, "Flush", id, "...");
+ r = next_ops->flush (nxdata, flags, err);
+ output_return (h, "...Flush", id, r, err);
+ return r;
+}
+
+/* Trim data. */
+static int
+log_trim (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offs, uint32_t flags,
+ int *err)
+{
+ struct handle *h = handle;
+ uint64_t id = get_id (h);
+ int r;
+
+ assert (!(flags & ~NBDKIT_FLAG_FUA));
+ output (h, "Trim", id, "offset=0x%" PRIx64 " count=0x%x fua=%d ...",
+ offs, count, !!(flags & NBDKIT_FLAG_FUA));
+ r = next_ops->trim (nxdata, count, offs, flags, err);
+ output_return (h, "...Trim", id, r, err);
+ return r;
+}
+
+/* Zero data. */
+static int
+log_zero (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offs, uint32_t flags,
+ int *err)
+{
+ struct handle *h = handle;
+ uint64_t id = get_id (h);
+ int r;
+
+ assert (!(flags & ~(NBDKIT_FLAG_FUA | NBDKIT_FLAG_MAY_TRIM)));
+ output (h, "Zero", id, "offset=0x%" PRIx64 " count=0x%x trim=%d fua=%d ...",
+ offs, count, !!(flags & NBDKIT_FLAG_MAY_TRIM),
+ !!(flags & NBDKIT_FLAG_FUA));
+ r = next_ops->zero (nxdata, count, offs, flags, err);
+ output_return (h, "...Zero", id, r, err);
+ return r;
+}
+
+/* Extents. */
+static int
+log_extents (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offs, uint32_t flags,
+ struct nbdkit_extents *extents, int *err)
+{
+ struct handle *h = handle;
+ uint64_t id = get_id (h);
+ int r;
+
+ assert (!(flags & ~(NBDKIT_FLAG_REQ_ONE)));
+ output (h, "Extents", id,
+ "offset=0x%" PRIx64 " count=0x%x req_one=%d ...",
+ offs, count, !!(flags & NBDKIT_FLAG_REQ_ONE));
+ r = next_ops->extents (nxdata, count, offs, flags, extents, err);
+ if (r == -1)
+ output_return (h, "...Extents", id, r, err);
+ else {
+ FILE *fp;
+ char *extents_str = NULL;
+ size_t i, n, len = 0;
+
+ fp = open_memstream (&extents_str, &len);
+ if (fp != NULL) {
+ n = nbdkit_extents_count (extents);
+ for (i = 0; i < n; ++i) {
+ struct nbdkit_extent e = nbdkit_get_extent (extents, i);
+ if (i > 0)
+ fprintf (fp, ", ");
+ fprintf (fp, "{ offset=0x%" PRIx64 ", length=0x%" PRIx64 ", "
+ "hole=%d, zero=%d }",
+ e.offset, e.length,
+ !!(e.type & NBDKIT_EXTENT_HOLE),
+ !!(e.type & NBDKIT_EXTENT_ZERO));
+ }
+
+ fclose (fp);
+ }
+
+ output (h, "...Extents", id, "extents=[%s] return=0",
+ extents_str ? extents_str : "(null)");
+ free (extents_str);
+ }
+ return r;
+}
+
+static struct nbdkit_filter filter = {
+ .name = "log",
+ .longname = "nbdkit log filter",
+ .version = PACKAGE_VERSION,
+ .config = log_config,
+ .config_complete = log_config_complete,
+ .config_help = log_config_help,
+ .unload = log_unload,
+ .open = log_open,
+ .close = log_close,
+ .prepare = log_prepare,
+ .finalize = log_finalize,
+ .pread = log_pread,
+ .pwrite = log_pwrite,
+ .flush = log_flush,
+ .trim = log_trim,
+ .zero = log_zero,
+ .extents = log_extents,
+};
+
+NBDKIT_REGISTER_FILTER(filter)
--- /dev/null
+=head1 NAME
+
+nbdkit-log-filter - nbdkit log filter
+
+=head1 SYNOPSIS
+
+ nbdkit --filter=log plugin logfile=FILE [logappend=BOOL] [plugin-args...]
+
+=head1 DESCRIPTION
+
+C<nbdkit-log-filter> is a filter that logs all transactions. When
+used as the first filter, it can show the original client requests; as
+a later filter, it can show how earlier filters have modified the
+original request. The log results are placed in a user-specified
+file; for more details on the log format, see L<FILES>. Note that
+using C<nbdkit -v -f> produces much more verbose logging details to
+stderr about every aspect of nbdkit operation, although this requires
+running nbdkit in the foreground; while the log filter is designed to
+work even when nbdkit is run as a daemon.
+
+=head1 PARAMETERS
+
+The nbdkit-log-filter requires a single parameter C<logfile> which
+specifies the path of the file to use for logging. If the file
+already exists, it will be truncated unless the C<logappend> parameter
+was specified with a value that can be parsed as a boolean true.
+
+=head1 EXAMPLES
+
+Serve the file F<disk.img>, and log each client transaction in the
+file F<disk.log>:
+
+ nbdkit --filter=log file disk.img logfile=disk.log
+
+Repeat the task, but with the cow (copy-on-write) filter to perform
+local caching of data served from the original plugin:
+
+ nbdkit --filter=cow --filter=log file disk.img logfile=disk.log2
+
+After running a client that performs the same operations under each of
+the two servers, you can compare F<disk.log> and F<disk.log2> to see
+the impact of the caching.
+
+=head1 FILES
+
+This filter writes to the file specified by the C<logfile=FILE>
+parameter. All lines include a timestamp, a connection counter, then
+details about the command. The following actions are logged: Connect,
+Read, Write, Zero, Trim, Extents, Flush, and Disconnect. Except for
+Connect and Disconnect, an event is logged across two lines for call
+and return value, to allow tracking duration and tracing any parallel
+execution, using id for correlation (incremented per action on the
+connection).
+
+An example logging session of a client that performs a single
+successful read is:
+
+ 2018-01-27 20:38:22.959984 connection=1 Connect size=0x400 write=1 flush=1 rotational=0 trim=0 zero=1 fua=1
+ 2018-01-27 20:38:23.001720 connection=1 Read id=1 offset=0x0 count=0x100 ...
+ 2018-01-27 20:38:23.001995 connection=1 ...Read id=1 return=0 (Success)
+ 2018-01-27 20:38:23.044259 connection=1 Disconnect transactions=1
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-file-plugin(1)>,
+L<nbdkit-cow-filter(1)>,
+L<nbdkit-filter(3)>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-noextents-filter.pod
+
+filter_LTLIBRARIES = nbdkit-noextents-filter.la
+
+nbdkit_noextents_filter_la_SOURCES = \
+ noextents.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+
+nbdkit_noextents_filter_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_noextents_filter_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_noextents_filter_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/filters/filters.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-noextents-filter.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-noextents-filter.1: nbdkit-noextents-filter.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+ true; \
+ else \
+ false; \
+ fi; \
+}
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+ -*O?*) strip_trailopt 'O';; \
+ -*l) strip_trailopt 'l'; skip_next=yes;; \
+ -*l?*) strip_trailopt 'l';; \
+ -[dEDm]) skip_next=yes;; \
+ -[JT]) skip_next=yes;; \
+ esac; \
+ case $$flg in \
+ *$$target_option*) has_opt=yes; break;; \
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+ test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
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+@HAVE_POD_TRUE@nbdkit-noextents-filter.1: nbdkit-noextents-filter.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+=head1 NAME
+
+nbdkit-noextents-filter - disable extents in the underlying plugin
+
+=head1 SYNOPSIS
+
+ nbdkit --filter=noextents plugin
+
+=head1 DESCRIPTION
+
+“Extents” are a feature of the NBD protocol / nbdkit which allow the
+client to detect sparse regions of the underlying disk.
+C<nbdkit-noextents-filter> disables this so that the plugin appears to
+be fully allocated.
+
+This filter can be useful when combined with L<nbdkit-file-plugin(1)>
+serving a file from a file system known to have poor C<lseek(2)>
+performance (C<tmpfs> is known to be one such system).
+
+=head1 PARAMETERS
+
+There are no parameters specific to nbdkit-noextents-filter. Any
+parameters are passed through to and processed by the underlying
+plugin in the normal way.
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-filter(3)>,
+L<nbdkit-nozero-filter(1)>,
+L<nbdkit-file-plugin(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2019 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <nbdkit-filter.h>
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+static int
+noextents_can_extents (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ return 0;
+}
+
+static struct nbdkit_filter filter = {
+ .name = "noextents",
+ .longname = "nbdkit noextents filter",
+ .version = PACKAGE_VERSION,
+ .can_extents = noextents_can_extents,
+};
+
+NBDKIT_REGISTER_FILTER(filter)
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-nozero-filter.pod
+
+filter_LTLIBRARIES = nbdkit-nozero-filter.la
+
+nbdkit_nozero_filter_la_SOURCES = \
+ nozero.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+
+nbdkit_nozero_filter_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include
+nbdkit_nozero_filter_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_nozero_filter_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/filters/filters.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-nozero-filter.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-nozero-filter.1: nbdkit-nozero-filter.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
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+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
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+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
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+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
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+#
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+#
+# * Neither the name of Red Hat nor the names of its contributors may be
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+ uninstall-man1
+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-nozero-filter.1: nbdkit-nozero-filter.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+=head1 NAME
+
+nbdkit-nozero-filter - nbdkit nozero filter
+
+=head1 SYNOPSIS
+
+ nbdkit --filter=nozero plugin [zeromode=MODE] [plugin-args...]
+
+=head1 DESCRIPTION
+
+C<nbdkit-nozero-filter> is a filter that intentionally disables
+efficient handling of sparse file holes (ranges of all-zero bytes)
+across the NBD protocol. It is mainly useful for evaluating timing
+differences between naive vs. sparse-aware connections, and for
+testing client or server fallbacks.
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<zeromode=none|emulate>
+
+Optional, controls which mode the filter will use. Mode B<none>
+(default) means that zero support is not advertised to the client;
+mode B<emulate> means that zero support is emulated by the filter
+using the plugin's C<pwrite> callback, regardless of whether the
+plugin itself implemented the C<zero> callback with a more efficient
+way to write zeroes.
+
+=back
+
+=head1 EXAMPLES
+
+Serve the file F<disk.img>, but force the client to write zeroes
+explicitly rather than with C<NBD_CMD_WRITE_ZEROES>:
+
+ nbdkit --filter=nozero file disk.img
+
+Serve the file F<disk.img>, allowing the client to take advantage of
+less network traffic via C<NBD_CMD_WRITE_ZEROES>, but still forcing
+the data to be written explicitly rather than punching any holes:
+
+ nbdkit --filter=nozero file zeromode=emulate disk.img
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-file-plugin(1)>,
+L<nbdkit-filter(3)>,
+L<nbdkit-noextents-filter(1)>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <stdbool.h>
+#include <assert.h>
+
+#include <nbdkit-filter.h>
+
+#include "minmax.h"
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+#define MAX_WRITE (64 * 1024 * 1024)
+
+static bool emulate;
+
+static int
+nozero_config (nbdkit_next_config *next, void *nxdata,
+ const char *key, const char *value)
+{
+ if (strcmp (key, "zeromode") == 0) {
+ if (strcmp (value, "emulate") == 0)
+ emulate = true;
+ else if (strcmp (value, "none") != 0) {
+ nbdkit_error ("unknown zeromode '%s'", value);
+ return -1;
+ }
+ return 0;
+ }
+ return next (nxdata, key, value);
+}
+
+#define nozero_config_help \
+ "zeromode=<MODE> Either 'none' (default) or 'emulate'.\n" \
+
+/* Advertise desired WRITE_ZEROES mode. */
+static int
+nozero_can_zero (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle)
+{
+ return emulate;
+}
+
+static int
+nozero_zero (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offs, uint32_t flags,
+ int *err)
+{
+ assert (emulate);
+ while (count) {
+ /* Always contains zeroes, but we can't use const or else gcc 9
+ * will use .rodata instead of .bss and inflate the binary size.
+ */
+ static /* const */ char buffer[MAX_WRITE];
+ uint32_t size = MIN (count, MAX_WRITE);
+ if (next_ops->pwrite (nxdata, buffer, size, offs,
+ flags & ~NBDKIT_FLAG_MAY_TRIM, err) == -1)
+ return -1;
+ offs += size;
+ count -= size;
+ }
+ return 0;
+}
+
+static struct nbdkit_filter filter = {
+ .name = "nozero",
+ .longname = "nbdkit nozero filter",
+ .version = PACKAGE_VERSION,
+ .config = nozero_config,
+ .config_help = nozero_config_help,
+ .can_zero = nozero_can_zero,
+ .zero = nozero_zero,
+};
+
+NBDKIT_REGISTER_FILTER(filter)
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-offset-filter.pod
+
+filter_LTLIBRARIES = nbdkit-offset-filter.la
+
+nbdkit_offset_filter_la_SOURCES = \
+ offset.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+
+nbdkit_offset_filter_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_offset_filter_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_offset_filter_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/filters/filters.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-offset-filter.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-offset-filter.1: nbdkit-offset-filter.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
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+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+ -rm -f ./$(DEPDIR)/nbdkit_offset_filter_la-offset.Plo
+ -rm -f Makefile
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+
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+ cscopelist-am ctags ctags-am distclean distclean-compile \
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+ install-man install-man1 install-pdf install-pdf-am install-ps \
+ install-ps-am install-strip installcheck installcheck-am \
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+ mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
+ uninstall-am uninstall-filterLTLIBRARIES uninstall-man \
+ uninstall-man1
+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-offset-filter.1: nbdkit-offset-filter.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+=head1 NAME
+
+nbdkit-offset-filter - nbdkit offset filter
+
+=head1 SYNOPSIS
+
+ nbdkit --filter=offset plugin offset=OFFSET range=LENGTH [plugin-args...]
+
+=head1 DESCRIPTION
+
+C<nbdkit-offset-filter> is a filter that limits requests to the byte
+range C<[offset .. offset+range-1]> within another plugin.
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<offset=>OFFSET
+
+The start offset. The offset must be E<ge> 0.
+
+This parameter is optional. If not given then C<offset=0> is assumed.
+
+=item B<range=>LENGTH
+
+The length of data to serve.
+
+This parameter is optional. If not given then the range is served
+starting from the offset through to the end of the underlying
+file/device.
+
+=back
+
+Note it is an error if the offset and/or range specify data which lies
+beyond the end of the underlying device. Use
+L<nbdkit-truncate-filter(1)> to truncate or extend the size of
+plugins.
+
+=head1 EXAMPLES
+
+=head2 Serve part of a file
+
+Using L<nbdkit-file-plugin(1)>, serve the file C<disk.img> starting at
+offset C<1M>. The total length served is C<100M> (the underlying file
+must therefore be at least C<101M> in length):
+
+ nbdkit --filter=offset file disk.img offset=1M range=100M
+
+=head2 Serve a single partition
+
+I<An easier way to do this is with L<nbdkit-partition-filter(1)>.>
+
+One way to serve a single partition from a disk is to find the start
+and length of the partition, eg using:
+
+ $ parted disk.img -- unit b print
+ ...
+ Number Start End Size Type File system Flags
+ 1 65536B 104792575B 104727040B primary ext2
+
+You can then serve the partition only using:
+
+ nbdkit --filter=offset file disk.img offset=65536 range=104727040
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-file-plugin(1)>,
+L<nbdkit-filter(3)>,
+L<nbdkit-partition-filter(1)>,
+L<nbdkit-truncate-filter(1)>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+#include <nbdkit-filter.h>
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+static int64_t offset = 0, range = -1;
+
+/* Called for each key=value passed on the command line. */
+static int
+offset_config (nbdkit_next_config *next, void *nxdata,
+ const char *key, const char *value)
+{
+ if (strcmp (key, "offset") == 0) {
+ offset = nbdkit_parse_size (value);
+ if (offset == -1)
+ return -1;
+ return 0;
+ }
+ else if (strcmp (key, "range") == 0) {
+ range = nbdkit_parse_size (value);
+ if (range == -1)
+ return -1;
+ return 0;
+ }
+ else
+ return next (nxdata, key, value);
+}
+
+/* Check the user did pass both parameters. */
+static int
+offset_config_complete (nbdkit_next_config_complete *next, void *nxdata)
+{
+ return next (nxdata);
+}
+
+#define offset_config_help \
+ "offset=<OFFSET> (required) The start offset to serve.\n" \
+ "range=<LENGTH> The total size to serve."
+
+/* Get the file size. */
+static int64_t
+offset_get_size (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ int64_t real_size = next_ops->get_size (nxdata);
+
+ if (range >= 0) {
+ if (offset + range > real_size) {
+ nbdkit_error ("offset+range is larger than the real size "
+ "of the underlying file or device");
+ return -1;
+ }
+ return range;
+ }
+ else
+ return real_size - offset;
+}
+
+/* Read data. */
+static int
+offset_pread (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, void *buf, uint32_t count, uint64_t offs,
+ uint32_t flags, int *err)
+{
+ return next_ops->pread (nxdata, buf, count, offs + offset, flags, err);
+}
+
+/* Write data. */
+static int
+offset_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle,
+ const void *buf, uint32_t count, uint64_t offs, uint32_t flags,
+ int *err)
+{
+ return next_ops->pwrite (nxdata, buf, count, offs + offset, flags, err);
+}
+
+/* Trim data. */
+static int
+offset_trim (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offs, uint32_t flags,
+ int *err)
+{
+ return next_ops->trim (nxdata, count, offs + offset, flags, err);
+}
+
+/* Zero data. */
+static int
+offset_zero (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offs, uint32_t flags,
+ int *err)
+{
+ return next_ops->zero (nxdata, count, offs + offset, flags, err);
+}
+
+/* Extents. */
+static int
+offset_extents (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offs, uint32_t flags,
+ struct nbdkit_extents *extents, int *err)
+{
+ size_t i;
+ struct nbdkit_extents *extents2;
+ struct nbdkit_extent e;
+ int64_t real_size = next_ops->get_size (nxdata);
+
+ extents2 = nbdkit_extents_new (offs + offset, real_size - offset);
+ if (extents2 == NULL) {
+ *err = errno;
+ return -1;
+ }
+ if (next_ops->extents (nxdata, count, offs + offset,
+ flags, extents2, err) == -1)
+ goto error;
+
+ for (i = 0; i < nbdkit_extents_count (extents2); ++i) {
+ e = nbdkit_get_extent (extents2, i);
+ e.offset -= offset;
+ if (nbdkit_add_extent (extents, e.offset, e.length, e.type) == -1)
+ goto error;
+ }
+ nbdkit_extents_free (extents2);
+ return 0;
+
+ error:
+ nbdkit_extents_free (extents2);
+ return -1;
+}
+
+static struct nbdkit_filter filter = {
+ .name = "offset",
+ .longname = "nbdkit offset filter",
+ .version = PACKAGE_VERSION,
+ .config = offset_config,
+ .config_complete = offset_config_complete,
+ .config_help = offset_config_help,
+ .get_size = offset_get_size,
+ .pread = offset_pread,
+ .pwrite = offset_pwrite,
+ .trim = offset_trim,
+ .zero = offset_zero,
+ .extents = offset_extents,
+};
+
+NBDKIT_REGISTER_FILTER(filter)
--- /dev/null
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-partition-filter.pod
+
+filter_LTLIBRARIES = nbdkit-partition-filter.la
+
+nbdkit_partition_filter_la_SOURCES = \
+ partition.c \
+ partition.h \
+ partition-gpt.c \
+ partition-mbr.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+
+nbdkit_partition_filter_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/gpt \
+ -I$(top_srcdir)/common/include
+nbdkit_partition_filter_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_partition_filter_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/filters/filters.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-partition-filter.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-partition-filter.1: nbdkit-partition-filter.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-partition-filter.1: nbdkit-partition-filter.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+=head1 NAME
+
+nbdkit-partition-filter - nbdkit partition filter
+
+=head1 SYNOPSIS
+
+ nbdkit --filter=partition plugin partition=PART [plugin-args...]
+
+=head1 DESCRIPTION
+
+C<nbdkit-partition-filter> is a filter that limits requests to a
+single partition within a disk image that is served by another plugin.
+
+Partition numbers are specified by the required C<partition>
+parameter, and count from 1.
+
+This works like the C<qemu-nbd -P> option.
+
+The opposite of this filter is L<nbdkit-partitioning-plugin(1)> which
+adds a virtual partition table to a file or files.
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<partition=>PART
+
+The partition number to serve, counting from 1.
+
+This parameter is required.
+
+=back
+
+=head1 EXAMPLE
+
+F<disk.img> is a partitioned disk image (eg. a virtual machine disk
+image). To serve the first partition only use:
+
+ nbdkit --filter=partition file disk.img partition=1
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-file-plugin(1)>,
+L<nbdkit-filter(3)>,
+L<nbdkit-offset-filter(1)>,
+L<nbdkit-partitioning-plugin(1)>,
+L<nbdkit-truncate-filter(1)>,
+L<parted(8)>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+#include <nbdkit-filter.h>
+
+#include "byte-swapping.h"
+#include "gpt.h"
+
+#include "partition.h"
+
+static void
+get_gpt_header (uint8_t *sector,
+ uint32_t *nr_partition_entries,
+ uint32_t *size_partition_entry)
+{
+ struct gpt_header *header = (struct gpt_header *) sector;
+ *nr_partition_entries = le32toh (header->nr_partition_entries);
+ *size_partition_entry = le32toh (header->size_partition_entry);
+}
+
+static void
+get_gpt_partition (uint8_t *bytes,
+ uint8_t *partition_type_guid,
+ uint64_t *first_lba, uint64_t *last_lba)
+{
+ struct gpt_entry *entry = (struct gpt_entry *) bytes;
+ memcpy (partition_type_guid, entry->partition_type_guid, 16);
+ *first_lba = le64toh (entry->first_lba);
+ *last_lba = le64toh (entry->last_lba);
+}
+
+int
+find_gpt_partition (struct nbdkit_next_ops *next_ops, void *nxdata,
+ int64_t size, uint8_t *header_bytes,
+ int64_t *offset_r, int64_t *range_r)
+{
+ uint8_t partition_bytes[128];
+ uint32_t nr_partition_entries, size_partition_entry;
+ uint8_t partition_type_guid[16];
+ uint64_t first_lba, last_lba;
+ int i;
+ int err;
+
+ get_gpt_header (header_bytes, &nr_partition_entries, &size_partition_entry);
+ if (partnum > nr_partition_entries) {
+ nbdkit_error ("GPT partition number out of range");
+ return -1;
+ }
+
+ if (size_partition_entry < 128) {
+ nbdkit_error ("GPT partition entry size is < 128 bytes");
+ return -1;
+ }
+
+ /* Check the disk is large enough to contain the partition table
+ * array (twice) plus other GPT overheads. Otherwise it is likely
+ * that the GPT header is bogus.
+ */
+ if (size < INT64_C(3)*SECTOR_SIZE +
+ INT64_C(2) * nr_partition_entries * size_partition_entry) {
+ nbdkit_error ("GPT partition table is too large for this disk");
+ return -1;
+ }
+
+ for (i = 0; i < nr_partition_entries; ++i) {
+ /* We already checked these are within bounds above. */
+ if (next_ops->pread (nxdata, partition_bytes, sizeof partition_bytes,
+ 2*SECTOR_SIZE + i*size_partition_entry, 0,
+ &err) == -1)
+ return -1;
+ get_gpt_partition (partition_bytes,
+ partition_type_guid, &first_lba, &last_lba);
+ if (memcmp (partition_type_guid,
+ "\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0\0", 16) != 0 &&
+ partnum == i+1) {
+ *offset_r = first_lba * SECTOR_SIZE;
+ *range_r = (1 + last_lba - first_lba) * SECTOR_SIZE;
+ return 0;
+ }
+ }
+
+ nbdkit_error ("GPT partition %d not found", partnum);
+ return -1;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <errno.h>
+
+#include <nbdkit-filter.h>
+
+#include "byte-swapping.h"
+#include "isaligned.h"
+
+#include "partition.h"
+
+/* See also linux.git/block/partitions/msdos.c:is_extended_partition */
+#define is_extended(byte) ((byte) == 0x5 || (byte) == 0xf || (byte) == 0x85)
+
+struct mbr_partition {
+ uint8_t part_type_byte;
+ uint32_t start_sector;
+ uint32_t nr_sectors;
+};
+
+static void
+get_mbr_partition (uint8_t *sector, int i, struct mbr_partition *part)
+{
+ int offset = 0x1BE + i*0x10;
+
+ part->part_type_byte = sector[offset+4];
+ memcpy (&part->start_sector, §or[offset+8], 4);
+ part->start_sector = le32toh (part->start_sector);
+ memcpy (&part->nr_sectors, §or[offset+0xC], 4);
+ part->nr_sectors = le32toh (part->nr_sectors);
+}
+
+int
+find_mbr_partition (struct nbdkit_next_ops *next_ops, void *nxdata,
+ int64_t size, uint8_t *mbr,
+ int64_t *offset_r, int64_t *range_r)
+{
+ int i;
+ struct mbr_partition partition;
+ uint32_t ep_start_sector, ep_nr_sectors;
+ uint64_t ebr, next_ebr;
+ uint8_t sector[SECTOR_SIZE];
+
+ /* Primary partition. */
+ if (partnum <= 4) {
+ for (i = 0; i < 4; ++i) {
+ get_mbr_partition (mbr, i, &partition);
+ if (partition.nr_sectors > 0 &&
+ partition.part_type_byte != 0 &&
+ !is_extended (partition.part_type_byte) &&
+ partnum == i+1) {
+ *offset_r = partition.start_sector * SECTOR_SIZE;
+ *range_r = partition.nr_sectors * SECTOR_SIZE;
+ return 0;
+ }
+ }
+
+ /* Not found falls through to error case at the end of the function. */
+ }
+
+ /* Logical partition. */
+ else {
+ /* Find the extended partition in the primary partition table. */
+ for (i = 0; i < 4; ++i) {
+ get_mbr_partition (mbr, i, &partition);
+ if (partition.nr_sectors > 0 &&
+ is_extended (partition.part_type_byte)) {
+ goto found_extended;
+ }
+ }
+ nbdkit_error ("MBR logical partition selected, "
+ "but there is no extended partition in the partition table");
+ return -1;
+
+ found_extended:
+ ep_start_sector = partition.start_sector;
+ ep_nr_sectors = partition.nr_sectors;
+ ebr = ep_start_sector * (uint64_t)SECTOR_SIZE;
+
+ /* This loop will terminate eventually because we only accept
+ * links which strictly increase the EBR pointer. There are valid
+ * partition tables which do odd things like arranging the
+ * partitions in reverse order, but we will not accept them here.
+ */
+ for (i = 5; ; ++i) {
+ /* Check that the ebr is aligned and pointing inside the disk
+ * and doesn't point to the MBR.
+ */
+ if (!IS_ALIGNED (ebr, SECTOR_SIZE) ||
+ ebr < SECTOR_SIZE || ebr >= size-SECTOR_SIZE) {
+ nbdkit_error ("invalid EBR chain: "
+ "next EBR boot sector is located outside disk boundary");
+ return -1;
+ }
+
+ /* Read the EBR sector. */
+ nbdkit_debug ("partition: reading EBR at %" PRIi64, ebr);
+ if (next_ops->pread (nxdata, sector, sizeof sector, ebr, 0,
+ &errno) == -1)
+ return -1;
+
+ if (partnum == i) {
+ uint64_t offset, range;
+
+ /* First entry in EBR points to the logical partition. */
+ get_mbr_partition (sector, 0, &partition);
+
+ /* The first entry start sector is relative to the EBR. */
+ offset = ebr + partition.start_sector * (uint64_t)SECTOR_SIZE;
+ range = partition.nr_sectors * (uint64_t)SECTOR_SIZE;
+
+ /* Logical partition cannot be before the corresponding EBR,
+ * and it cannot extend beyond the enclosing extended
+ * partition.
+ */
+ if (offset <= ebr ||
+ offset + range >
+ ((uint64_t)ep_start_sector + ep_nr_sectors) * SECTOR_SIZE) {
+ nbdkit_error ("logical partition start or size out of range "
+ "(offset=%" PRIu64 ", range=%" PRIu64 ", "
+ "ep:startsect=%" PRIu32 ", ep:nrsects=%" PRIu32 ")",
+ offset, range, ep_start_sector, ep_nr_sectors);
+ return -1;
+ }
+ *offset_r = offset;
+ *range_r = range;
+ return 0;
+ }
+
+ /* Second entry in EBR links to the next EBR. */
+ get_mbr_partition (sector, 1, &partition);
+
+ /* All zeroes means the end of the chain. */
+ if (partition.start_sector == 0 && partition.nr_sectors == 0)
+ break;
+
+ /* The second entry start sector is relative to the start to the
+ * extended partition.
+ */
+ next_ebr =
+ ((uint64_t)ep_start_sector + partition.start_sector) * SECTOR_SIZE;
+
+ /* Make sure the next EBR > current EBR. */
+ if (next_ebr <= ebr) {
+ nbdkit_error ("invalid EBR chain: "
+ "next EBR %" PRIu64 " <= current EBR %" PRIu64,
+ next_ebr, ebr);
+ return -1;
+ }
+ ebr = next_ebr;
+ }
+ }
+
+ nbdkit_error ("MBR partition %d not found", partnum);
+ return -1;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <inttypes.h>
+
+#include <nbdkit-filter.h>
+
+#include "byte-swapping.h"
+
+#include "partition.h"
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+int partnum = -1;
+
+/* Called for each key=value passed on the command line. */
+static int
+partition_config (nbdkit_next_config *next, void *nxdata,
+ const char *key, const char *value)
+{
+ if (strcmp (key, "partition") == 0) {
+ if (sscanf (value, "%d", &partnum) != 1 || partnum <= 0) {
+ nbdkit_error ("invalid partition number");
+ return -1;
+ }
+ return 0;
+ }
+ else
+ return next (nxdata, key, value);
+}
+
+/* Check the user did pass partition number. */
+static int
+partition_config_complete (nbdkit_next_config_complete *next, void *nxdata)
+{
+ if (partnum == -1) {
+ nbdkit_error ("you must supply the partition parameter on the command line");
+ return -1;
+ }
+
+ return next (nxdata);
+}
+
+#define partition_config_help \
+ "partition=<PART> (required) The partition number (counting from 1)."
+
+struct handle {
+ int64_t offset;
+ int64_t range;
+};
+
+/* Open a connection. */
+static void *
+partition_open (nbdkit_next_open *next, void *nxdata, int readonly)
+{
+ struct handle *h;
+
+ if (next (nxdata, readonly) == -1)
+ return NULL;
+
+ h = malloc (sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+
+ /* These are set in the prepare method. */
+ h->offset = h->range = -1;
+ return h;
+}
+
+static void
+partition_close (void *handle)
+{
+ struct handle *h = handle;
+
+ free (h);
+}
+
+static int
+partition_prepare (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ struct handle *h = handle;
+ int64_t size;
+ uint8_t lba01[2*SECTOR_SIZE]; /* LBA 0 and 1 */
+ int r;
+ int err;
+
+ size = next_ops->get_size (nxdata);
+ if (size == -1)
+ return -1;
+ if (size < 2 * SECTOR_SIZE) {
+ nbdkit_error ("disk is too small to be a partitioned disk");
+ return -1;
+ }
+
+ nbdkit_debug ("disk size=%" PRIi64, size);
+
+ if (next_ops->pread (nxdata, lba01, sizeof lba01, 0, 0, &err) == -1)
+ return -1;
+
+ /* Is it GPT? */
+ if (size >= 2 * 34 * SECTOR_SIZE &&
+ memcmp (&lba01[SECTOR_SIZE], "EFI PART", 8) == 0)
+ r = find_gpt_partition (next_ops, nxdata, size, &lba01[SECTOR_SIZE],
+ &h->offset, &h->range);
+ /* Is it MBR? */
+ else if (lba01[0x1fe] == 0x55 && lba01[0x1ff] == 0xAA)
+ r = find_mbr_partition (next_ops, nxdata, size, lba01,
+ &h->offset, &h->range);
+ else {
+ nbdkit_error ("disk does not contain MBR or GPT partition table signature");
+ r = -1;
+ }
+ if (r == -1)
+ return -1;
+
+ /* The find_*_partition functions set h->offset & h->range to the
+ * partition boundaries. We additionally check that they are inside
+ * the underlying disk.
+ */
+ if (h->offset < 0 || h->range < 0 || h->offset + h->range > size) {
+ nbdkit_error ("partition is outside the disk");
+ return -1;
+ }
+
+ nbdkit_debug ("partition offset=%" PRIi64 " range=%" PRIi64,
+ h->offset, h->range);
+
+ return 0;
+}
+
+/* Get the file size. */
+static int64_t
+partition_get_size (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ struct handle *h = handle;
+
+ return h->range;
+}
+
+/* Read data. */
+static int
+partition_pread (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, void *buf, uint32_t count, uint64_t offs,
+ uint32_t flags, int *err)
+{
+ struct handle *h = handle;
+
+ return next_ops->pread (nxdata, buf, count, offs + h->offset, flags, err);
+}
+
+/* Write data. */
+static int
+partition_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle,
+ const void *buf, uint32_t count, uint64_t offs,
+ uint32_t flags, int *err)
+{
+ struct handle *h = handle;
+
+ return next_ops->pwrite (nxdata, buf, count, offs + h->offset, flags, err);
+}
+
+/* Trim data. */
+static int
+partition_trim (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offs, uint32_t flags,
+ int *err)
+{
+ struct handle *h = handle;
+
+ return next_ops->trim (nxdata, count, offs + h->offset, flags, err);
+}
+
+/* Zero data. */
+static int
+partition_zero (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offs, uint32_t flags,
+ int *err)
+{
+ struct handle *h = handle;
+
+ return next_ops->zero (nxdata, count, offs + h->offset, flags, err);
+}
+
+/* Extents. */
+static int
+partition_extents (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offs, uint32_t flags,
+ struct nbdkit_extents *extents, int *err)
+{
+ struct handle *h = handle;
+ size_t i;
+ struct nbdkit_extents *extents2;
+ struct nbdkit_extent e;
+ int64_t real_size = next_ops->get_size (nxdata);
+
+ extents2 = nbdkit_extents_new (offs + h->offset, real_size - h->offset);
+ if (extents2 == NULL) {
+ *err = errno;
+ return -1;
+ }
+ if (next_ops->extents (nxdata, count, offs + h->offset,
+ flags, extents2, err) == -1)
+ goto error;
+
+ for (i = 0; i < nbdkit_extents_count (extents2); ++i) {
+ e = nbdkit_get_extent (extents2, i);
+ e.offset -= h->offset;
+ if (nbdkit_add_extent (extents, e.offset, e.length, e.type) == -1)
+ goto error;
+ }
+ nbdkit_extents_free (extents2);
+ return 0;
+
+ error:
+ nbdkit_extents_free (extents2);
+ return -1;
+}
+
+static struct nbdkit_filter filter = {
+ .name = "partition",
+ .longname = "nbdkit partition filter",
+ .version = PACKAGE_VERSION,
+ .config = partition_config,
+ .config_complete = partition_config_complete,
+ .config_help = partition_config_help,
+ .open = partition_open,
+ .prepare = partition_prepare,
+ .close = partition_close,
+ .get_size = partition_get_size,
+ .pread = partition_pread,
+ .pwrite = partition_pwrite,
+ .trim = partition_trim,
+ .zero = partition_zero,
+ .extents = partition_extents,
+};
+
+NBDKIT_REGISTER_FILTER(filter)
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_PARTITION_H
+#define NBDKIT_PARTITION_H
+
+#include <nbdkit-filter.h>
+
+#define SECTOR_SIZE 512
+
+extern int partnum;
+
+extern int find_mbr_partition (struct nbdkit_next_ops *next_ops, void *nxdata,
+ int64_t size, uint8_t *mbr,
+ int64_t *offset_r, int64_t *range_r);
+extern int find_gpt_partition (struct nbdkit_next_ops *next_ops, void *nxdata,
+ int64_t size, uint8_t *header_bytes,
+ int64_t *offset_r, int64_t *range_r);
+
+#endif /* NBDKIT_PARTITION_H */
--- /dev/null
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-rate-filter.pod
+
+filter_LTLIBRARIES = nbdkit-rate-filter.la
+
+nbdkit_rate_filter_la_SOURCES = \
+ bucket.c \
+ bucket.h \
+ rate.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+
+nbdkit_rate_filter_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include
+nbdkit_rate_filter_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_rate_filter_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/filters/filters.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-rate-filter.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-rate-filter.1: nbdkit-rate-filter.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+ true; \
+ else \
+ false; \
+ fi; \
+}
+am__make_running_with_option = \
+ case $${target_option-} in \
+ ?) ;; \
+ *) echo "am__make_running_with_option: internal error: invalid" \
+ "target option '$${target_option-}' specified" >&2; \
+ exit 1;; \
+ esac; \
+ has_opt=no; \
+ sane_makeflags=$$MAKEFLAGS; \
+ if $(am__is_gnu_make); then \
+ sane_makeflags=$$MFLAGS; \
+ else \
+ case $$MAKEFLAGS in \
+ *\\[\ \ ]*) \
+ bs=\\; \
+ sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+ | sed "s/$$bs$$bs[$$bs $$bs ]*//g"`;; \
+ esac; \
+ fi; \
+ skip_next=no; \
+ strip_trailopt () \
+ { \
+ flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+ }; \
+ for flg in $$sane_makeflags; do \
+ test $$skip_next = yes && { skip_next=no; continue; }; \
+ case $$flg in \
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+
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+
+
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+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* This filter is implemented using a Token Bucket
+ * (https://en.wikipedia.org/wiki/Token_bucket). There are two
+ * buckets per connection (one each for reading and writing) and two
+ * global buckets (also for reading and writing).
+ *
+ * We add tokens at the desired rate (the per-connection rate for the
+ * connection buckets, and the global rate for the global buckets).
+ * Note that we don't actually keep the buckets updated in real time
+ * because as a filter we are called asynchronously. Instead for each
+ * bucket we store the last time we were called and add the
+ * appropriate number of tokens when we are called next.
+ *
+ * The bucket capacity controls the burstiness allowed. This is
+ * hard-coded at the moment but could be configurable. All buckets
+ * start off full.
+ *
+ * When a packet is to be read or written, if there are sufficient
+ * tokens in the bucket then the packet may be immediately passed
+ * through to the underlying plugin. The number of bits used is
+ * deducted from the appropriate per-connection and global bucket.
+ *
+ * If there are insufficient tokens then the packet must be delayed.
+ * This is done by inserting a sleep which has an estimated length
+ * that is long enough based on the rate at which enough tokens will
+ * replenish the bucket to allow the packet to be sent next time.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <time.h>
+#include <sys/time.h>
+
+#include <nbdkit-filter.h>
+
+#include "minmax.h"
+#include "tvdiff.h"
+
+#include "bucket.h"
+
+int rate_debug_bucket; /* -D rate.bucket=1 */
+
+void
+bucket_init (struct bucket *bucket, uint64_t rate, double capacity_secs)
+{
+ bucket->rate = rate;
+
+ /* Store the capacity passed to this function. We will need this if
+ * we adjust the rate dynamically.
+ */
+ bucket->capacity_secs = capacity_secs;
+
+ /* Capacity is expressed in seconds, but we want to know the
+ * capacity in tokens, so multiply by the rate to get this.
+ */
+ bucket->capacity = rate * capacity_secs;
+
+ /* Buckets start off full. */
+ bucket->level = bucket->capacity;
+
+ gettimeofday (&bucket->tv, NULL);
+}
+
+uint64_t
+bucket_adjust_rate (struct bucket *bucket, uint64_t rate)
+{
+ uint64_t old_rate = bucket->rate;
+
+ bucket->rate = rate;
+ bucket->capacity = rate * bucket->capacity_secs;
+ if (bucket->level > bucket->capacity)
+ bucket->level = bucket->capacity;
+ return old_rate;
+}
+
+uint64_t
+bucket_run (struct bucket *bucket, uint64_t n, struct timespec *ts)
+{
+ struct timeval now;
+ int64_t usec;
+ uint64_t add, nsec;
+
+ /* rate == 0 is a special case meaning that there is no limit being
+ * enforced.
+ */
+ if (bucket->rate == 0)
+ return 0;
+
+ gettimeofday (&now, NULL);
+
+ /* Work out how much time has elapsed since we last added tokens to
+ * the bucket, and add the correct number of tokens.
+ */
+ usec = tvdiff_usec (&bucket->tv, &now);
+ if (usec < 0) /* Maybe happens if system time not monotonic? */
+ usec = 0;
+
+ add = bucket->rate * usec / 1000000;
+ add = MIN (add, bucket->capacity - bucket->level);
+ if (rate_debug_bucket)
+ nbdkit_debug ("bucket %p: adding %" PRIu64 " tokens, new level %" PRIu64,
+ bucket, add, bucket->level + add);
+ bucket->level += add;
+ bucket->tv = now;
+
+ /* Can we deduct N tokens from the bucket? If yes then we're good,
+ * and we can return 0 which means the caller won't sleep.
+ */
+ if (bucket->level >= n) {
+ if (rate_debug_bucket)
+ nbdkit_debug ("bucket %p: deducting %" PRIu64 " tokens", bucket, n);
+ bucket->level -= n;
+ return 0;
+ }
+
+ if (rate_debug_bucket)
+ nbdkit_debug ("bucket %p: deducting %" PRIu64 " tokens, bucket empty, "
+ "need another %" PRIu64 " tokens",
+ bucket, bucket->level, n - bucket->level);
+
+ n -= bucket->level;
+ bucket->level = 0;
+
+ /* Now we need to estimate how long it will take to add N tokens to
+ * the bucket, which is how long the caller must sleep for.
+ */
+ nsec = 1000000000 * n / bucket->rate;
+ ts->tv_sec = nsec / 1000000000;
+ ts->tv_nsec = nsec % 1000000000;
+
+ if (rate_debug_bucket)
+ nbdkit_debug ("bucket %p: sleeping for %.1f seconds", bucket,
+ nsec / 1000000000.);
+
+ return n;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_BUCKET_H
+#define NBDKIT_BUCKET_H
+
+#include <stdint.h>
+#include <time.h>
+#include <sys/time.h>
+
+/* A token bucket. */
+struct bucket {
+ uint64_t rate; /* Fill rate. 0 = no limit set. */
+ double capacity_secs; /* Capacity as supplied to bucket_init. */
+ uint64_t capacity; /* Maximum capacity of the bucket in tokens. */
+ uint64_t level; /* How full is the bucket now? */
+ struct timeval tv; /* Last time we updated the level. */
+};
+
+/* Initialize the bucket structure. Capacity is expressed in
+ * rate-equivalent seconds.
+ */
+extern void bucket_init (struct bucket *bucket,
+ uint64_t rate, double capacity_secs);
+
+/* Dynamically adjust the rate. The old rate is returned. */
+extern uint64_t bucket_adjust_rate (struct bucket *bucket, uint64_t rate);
+
+/* Take up to N tokens from the bucket. Returns the number
+ * of tokens remaining (that could not be taken from the bucket),
+ * or 0 if we were able to take all N tokens from the bucket.
+ *
+ * In the case that the return value > 0, *TS is initialized with the
+ * estimated length of time you should sleep. Note that *TS is _NOT_
+ * initialized if the return value == 0, because the caller should not
+ * sleep in that case.
+ *
+ * In the case where the caller needs to sleep, it must make a further
+ * call to bucket_run before proceeding, since another thread may have
+ * "stolen" the tokens while you were sleeping.
+ */
+extern uint64_t bucket_run (struct bucket *bucket, uint64_t n,
+ struct timespec *ts);
+
+#endif /* NBDKIT_BUCKET_H */
--- /dev/null
+=head1 NAME
+
+nbdkit-rate-filter - limit bandwidth by connection or server
+
+=head1 SYNOPSIS
+
+ nbdkit --filter=rate PLUGIN [PLUGIN-ARGS...]
+ [rate=BITSPERSEC]
+ [connection-rate=BITSPERSEC]
+ [rate-file=FILENAME] [connection-rate-file=FILENAME]
+
+=head1 DESCRIPTION
+
+C<nbdkit-rate-filter> is a filter that limits the bandwidth that can
+be used by the server. Limits can be applied per connection and/or
+for the server as a whole.
+
+=head1 EXAMPLES
+
+=over 4
+
+=item nbdkit --filter=rate memory size=64M rate=1M
+
+Create a 64M RAM disk and limit server bandwidth as a whole to a
+maximum of S<1 Mbps> (megabit per second).
+
+=item nbdkit --filter=rate memory size=64M connection-rate=50K
+
+Limit each connection to S<50 Kbps> (kilobits per second). However as
+there is no limit to the number of simultaneous connections this does
+not limit overall server bandwidth.
+
+=item nbdkit --filter=rate memory size=64M connection-rate=50K rate=1M
+
+Limit each connection to S<50 Kbps>. Additionally the total bandwidth
+across all connections to the server is limited to S<1 Mbps>.
+
+=item nbdkit --filter=rate memory size=64M rate=1M rate-file=/tmp/rate
+
+Initially limit bandwidth to S<1 Mbps>. While the server is running
+the rate can be adjusted dynamically by writing a different rate into
+F</tmp/rate>.
+
+=back
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<connection-rate=>BITSPERSEC
+
+Limit each connection to C<BITSPERSEC>.
+
+=item B<rate=>BITSPERSEC
+
+Limit total bandwidth across all connections to C<BITSPERSEC>.
+
+=item B<connection-rate-file=>FILENAME
+
+=item B<rate-file=>FILENAME
+
+Adjust the per-connection or total bandwidth dynamically by writing
+C<BITSPERSEC> into C<FILENAME>. See L</DYNAMIC ADJUSTMENT> below.
+
+=back
+
+C<BITSPERSEC> can be specified as a simple number, or you can use a
+number followed by C<K>, C<M> etc to mean kilobits, megabits and so
+on.
+
+=head1 DYNAMIC ADJUSTMENT
+
+Using the C<connection-rate-file> or C<rate-file> parameters you can
+dynamically adjust the bandwidth while the server is running.
+
+If the file is not present when the server starts up then the initial
+rate is taken from the associated C<connection-rate> or C<rate>
+parameter (or if that is not present, then it is unlimited). If the
+file is deleted while the server is running then the last rate read
+from the file continues to be used.
+
+The file should be updated atomically (eg. create a new file, then
+rename or L<mv(1)> the new file over the old file).
+
+There will be a short delay between the file being updated and the new
+rate coming into effect.
+
+=head1 NOTES
+
+You can specify C<rate> and C<connection-rate> on their own or
+together. If you specify neither, the filter is turned off.
+
+The rate filter approximates the bandwidth used by the NBD protocol on
+the wire. Some operations such as zeroing and trimming are
+effectively free (because only a tiny NBD message is sent over the
+network) and so do not count against the bandwidth limit. NBD and TCP
+protocol overhead is not included, so you may find that other tools
+such as L<tc(8)> and L<iptables(8)> give more accurate results.
+
+There are separate bandwidth limits for read and write (ie. download
+and upload to the server).
+
+If the size of requests made by your client is much larger than the
+rate limit then you can see long, lumpy sleeps in this filter. In the
+future we may modify the filter to break up large requests
+automatically in order to limit the length of sleeps. Placing the
+L<nbdkit-blocksize-filter(1)> in front of this filter may help in the
+meantime.
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-blocksize-filter(1)>,
+L<nbdkit-delay-filter(1)>,
+L<nbdkit-filter(3)>,
+L<iptables(8)>,
+L<tc(8)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2019 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* For a note on the implementation of this filter, see bucket.c. */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <time.h>
+#include <sys/time.h>
+
+#include <pthread.h>
+
+#include <nbdkit-filter.h>
+
+#include "bucket.h"
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* Per-connection and global limit, both in bits per second, with zero
+ * meaning not set / not enforced. These are only used when reading
+ * the command line and initializing the buckets for the first time.
+ * They are not involved in dynamic rate adjustment.
+ */
+static uint64_t connection_rate = 0;
+static uint64_t rate = 0;
+
+/* Files for dynamic rate adjustment. */
+static char *connection_rate_file = NULL;
+static char *rate_file = NULL;
+
+/* Bucket capacity controls the burst rate. It is expressed as the
+ * length of time in "rate-equivalent seconds" that the client can
+ * burst for after a period of inactivity. This could be adjustable
+ * in future.
+ */
+#define BUCKET_CAPACITY 2.0
+
+/* Global read and write buckets. */
+static struct bucket read_bucket;
+static pthread_mutex_t read_bucket_lock = PTHREAD_MUTEX_INITIALIZER;
+static struct bucket write_bucket;
+static pthread_mutex_t write_bucket_lock = PTHREAD_MUTEX_INITIALIZER;
+
+/* Per-connection handle. */
+struct rate_handle {
+ /* Per-connection read and write buckets. */
+ struct bucket read_bucket;
+ pthread_mutex_t read_bucket_lock;
+ struct bucket write_bucket;
+ pthread_mutex_t write_bucket_lock;
+};
+
+static void
+rate_unload (void)
+{
+ free (connection_rate_file);
+ free (rate_file);
+}
+
+/* Called for each key=value passed on the command line. */
+static int
+rate_config (nbdkit_next_config *next, void *nxdata,
+ const char *key, const char *value)
+{
+ if (strcmp (key, "rate") == 0) {
+ if (rate > 0) {
+ nbdkit_error ("rate set twice on the command line");
+ return -1;
+ }
+ rate = nbdkit_parse_size (value);
+ if (rate == -1)
+ return -1;
+ if (rate == 0) {
+ nbdkit_error ("rate cannot be set to 0");
+ return -1;
+ }
+ return 0;
+ }
+ else if (strcmp (key, "connection-rate") == 0) {
+ if (connection_rate > 0) {
+ nbdkit_error ("connection-rate set twice on the command line");
+ return -1;
+ }
+ connection_rate = nbdkit_parse_size (value);
+ if (connection_rate == -1)
+ return -1;
+ if (connection_rate == 0) {
+ nbdkit_error ("connection-rate cannot be set to 0");
+ return -1;
+ }
+ return 0;
+ }
+ else if (strcmp (key, "rate-file") == 0) {
+ free (rate_file);
+ rate_file = nbdkit_absolute_path (value);
+ if (rate_file == NULL)
+ return -1;
+ return 0;
+ }
+ else if (strcmp (key, "connection-rate-file") == 0) {
+ free (connection_rate_file);
+ connection_rate_file = nbdkit_absolute_path (value);
+ if (connection_rate_file == NULL)
+ return -1;
+ return 0;
+ }
+ else
+ return next (nxdata, key, value);
+}
+
+static int
+rate_config_complete (nbdkit_next_config_complete *next, void *nxdata)
+{
+ /* Initialize the global buckets. */
+ bucket_init (&read_bucket, rate, BUCKET_CAPACITY);
+ bucket_init (&write_bucket, rate, BUCKET_CAPACITY);
+
+ return next (nxdata);
+}
+
+#define rate_config_help \
+ "rate=BITSPERSEC Limit total bandwidth.\n" \
+ "connection-rate=BITSPERSEC Limit per-connection bandwidth.\n" \
+ "rate-file=FILENAME Dynamically adjust total bandwidth.\n" \
+ "connection-rate-file=FILENAME Dynamically adjust per-connection bandwidth."
+
+/* Create the per-connection handle. */
+static void *
+rate_open (nbdkit_next_open *next, void *nxdata, int readonly)
+{
+ struct rate_handle *h;
+
+ if (next (nxdata, readonly) == -1)
+ return NULL;
+
+ h = malloc (sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+
+ bucket_init (&h->read_bucket, connection_rate, BUCKET_CAPACITY);
+ bucket_init (&h->write_bucket, connection_rate, BUCKET_CAPACITY);
+ pthread_mutex_init (&h->read_bucket_lock, NULL);
+ pthread_mutex_init (&h->write_bucket_lock, NULL);
+
+ return h;
+}
+
+/* Free up the per-connection handle. */
+static void
+rate_close (void *handle)
+{
+ struct rate_handle *h = handle;
+
+ pthread_mutex_destroy (&h->read_bucket_lock);
+ pthread_mutex_destroy (&h->write_bucket_lock);
+ free (h);
+}
+
+static void
+maybe_adjust (const char *file, struct bucket *bucket, pthread_mutex_t *lock)
+{
+ FILE *fp;
+ ssize_t r;
+ size_t len = 0;
+ char *line = NULL;
+ int64_t new_rate;
+ uint64_t old_rate;
+
+ if (!file) return;
+
+ fp = fopen (file, "r");
+ if (fp == NULL)
+ return; /* this is not an error */
+
+ r = getline (&line, &len, fp);
+ fclose (fp);
+ if (r == -1) {
+ nbdkit_debug ("could not read rate file: %s: %m", file);
+ goto err;
+ }
+
+ if (r > 0 && line[r-1] == '\n') line[r-1] = '\0';
+ new_rate = nbdkit_parse_size (line);
+ if (new_rate == -1)
+ goto err;
+
+ pthread_mutex_lock (lock);
+ old_rate = bucket_adjust_rate (bucket, new_rate);
+ pthread_mutex_unlock (lock);
+
+ if (old_rate != new_rate)
+ nbdkit_debug ("rate adjusted from %" PRIu64 " to %" PRIi64,
+ old_rate, new_rate);
+
+ err:
+ free (line);
+}
+
+static inline void
+maybe_sleep (struct bucket *bucket, pthread_mutex_t *lock, uint32_t count)
+{
+ struct timespec ts;
+ uint64_t bits;
+
+ /* Count is in bytes, but we rate limit using bits. We could
+ * multiply this by 10 to include start/stop but let's not
+ * second-guess the transport layers underneath.
+ */
+ bits = count * UINT64_C(8);
+
+ while (bits > 0) {
+ /* Run the token bucket algorithm. */
+ pthread_mutex_lock (lock);
+ bits = bucket_run (bucket, bits, &ts);
+ pthread_mutex_unlock (lock);
+
+ if (bits > 0)
+ nanosleep (&ts, NULL);
+ }
+}
+
+/* Read data. */
+static int
+rate_pread (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ struct rate_handle *h = handle;
+
+ maybe_adjust (rate_file, &read_bucket, &read_bucket_lock);
+ maybe_sleep (&read_bucket, &read_bucket_lock, count);
+ maybe_adjust (connection_rate_file, &h->read_bucket, &h->read_bucket_lock);
+ maybe_sleep (&h->read_bucket, &h->read_bucket_lock, count);
+
+ return next_ops->pread (nxdata, buf, count, offset, flags, err);
+}
+
+/* Write data. */
+static int
+rate_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle,
+ const void *buf, uint32_t count, uint64_t offset, uint32_t flags,
+ int *err)
+{
+ struct rate_handle *h = handle;
+
+ maybe_adjust (rate_file, &write_bucket, &write_bucket_lock);
+ maybe_sleep (&write_bucket, &write_bucket_lock, count);
+ maybe_adjust (connection_rate_file, &h->write_bucket, &h->write_bucket_lock);
+ maybe_sleep (&h->write_bucket, &h->write_bucket_lock, count);
+
+ return next_ops->pwrite (nxdata, buf, count, offset, flags, err);
+}
+
+static struct nbdkit_filter filter = {
+ .name = "rate",
+ .longname = "nbdkit rate filter",
+ .version = PACKAGE_VERSION,
+ .unload = rate_unload,
+ .config = rate_config,
+ .config_complete = rate_config_complete,
+ .config_help = rate_config_help,
+ .open = rate_open,
+ .close = rate_close,
+ .pread = rate_pread,
+ .pwrite = rate_pwrite,
+};
+
+NBDKIT_REGISTER_FILTER(filter)
--- /dev/null
+# nbdkit
+# Copyright (C) 2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-readahead-filter.pod
+
+filter_LTLIBRARIES = nbdkit-readahead-filter.la
+
+nbdkit_readahead_filter_la_SOURCES = \
+ readahead.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+
+nbdkit_readahead_filter_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include
+nbdkit_readahead_filter_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_readahead_filter_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/filters/filters.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-readahead-filter.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-readahead-filter.1: nbdkit-readahead-filter.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
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+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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+ uninstall-man1
+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-readahead-filter.1: nbdkit-readahead-filter.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+=head1 NAME
+
+nbdkit-readahead-filter - prefetch data when reading sequentially
+
+=head1 SYNOPSIS
+
+ nbdkit --filter=readahead plugin
+
+=head1 DESCRIPTION
+
+C<nbdkit-readahead-filter> is a filter that prefetches data when the
+client is reading sequentially.
+
+A common use for this filter is to accelerate sequential copy
+operations (like S<C<qemu-img convert>>) when plugin requests have a
+high overhead (like L<nbdkit-curl-plugin(1)>). For example:
+
+ nbdkit -U - --filter=readahead curl https://example.com/disk.img \
+ --run 'qemu-img convert $nbd disk.img'
+
+If you use this filter with clients that have a random access pattern
+it will slow everything down.
+
+=head1 PARAMETERS
+
+There are no parameters specific to nbdkit-readahead-filter. Any
+parameters are passed through to and processed by the underlying
+plugin in the normal way.
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-cache-filter(1)>,
+L<nbdkit-curl-plugin(1)>,
+L<nbdkit-ssh-plugin(1)>,
+L<nbdkit-vddk-plugin(1)>,
+L<nbdkit-filter(3)>,
+L<qemu-img(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2019 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <errno.h>
+
+#include <pthread.h>
+
+#include <nbdkit-filter.h>
+
+#include "minmax.h"
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* Copied from server/plugins.c. */
+#define MAX_REQUEST_SIZE (64 * 1024 * 1024)
+
+/* These could be made configurable in future. */
+#define READAHEAD_MIN 65536
+#define READAHEAD_MAX MAX_REQUEST_SIZE
+
+/* This lock protects the global state. */
+static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+
+/* The real size of the underlying plugin. */
+static uint64_t size;
+
+/* Size of the readahead window. */
+static uint64_t window = READAHEAD_MIN;
+
+/* The single prefetch buffer shared by all threads, and its virtual
+ * location in the virtual disk. The prefetch buffer grows
+ * dynamically as required, but never shrinks.
+ */
+static char *buffer = NULL;
+static size_t bufsize = 0;
+static uint64_t position;
+static uint32_t length = 0;
+
+static void
+readahead_unload (void)
+{
+ free (buffer);
+}
+
+static int64_t readahead_get_size (struct nbdkit_next_ops *next_ops,
+ void *nxdata, void *handle);
+
+/* In prepare, force a call to get_size which sets the size global. */
+static int
+readahead_prepare (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ int64_t r;
+
+ r = readahead_get_size (next_ops, nxdata, handle);
+ return r >= 0 ? 0 : -1;
+}
+
+/* Get the size. */
+static int64_t
+readahead_get_size (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ int64_t r;
+
+ r = next_ops->get_size (nxdata);
+ if (r == -1)
+ return -1;
+
+ pthread_mutex_lock (&lock);
+ size = r;
+ pthread_mutex_unlock (&lock);
+
+ return r;
+}
+
+/* Read data. */
+
+static int
+fill_readahead (struct nbdkit_next_ops *next_ops, void *nxdata,
+ uint32_t count, uint64_t offset, uint32_t flags, int *err)
+{
+ position = offset;
+
+ /* Read at least window bytes, but if count is larger read that.
+ * Note that the count cannot be bigger than the buffer size.
+ */
+ length = MAX (count, window);
+
+ /* Don't go beyond the end of the underlying file. */
+ length = MIN (length, size - position);
+
+ /* Grow the buffer if necessary. */
+ if (bufsize < length) {
+ char *new_buffer = realloc (buffer, length);
+ if (new_buffer == NULL) {
+ *err = errno;
+ nbdkit_error ("realloc: %m");
+ return -1;
+ }
+ buffer = new_buffer;
+ bufsize = length;
+ }
+
+ if (next_ops->pread (nxdata, buffer, length, offset, flags, err) == -1) {
+ length = 0; /* failed to fill the prefetch buffer */
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+readahead_pread (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ pthread_mutex_lock (&lock);
+
+ while (count > 0) {
+ if (length == 0) {
+ /* We don't have a prefetch buffer at all. This could be the
+ * first request or reset after a miss.
+ */
+ window = READAHEAD_MIN;
+ if (fill_readahead (next_ops, nxdata, count, offset, flags, err) == -1)
+ goto err;
+ }
+
+ /* Can we satisfy this request partly or entirely from the prefetch
+ * buffer?
+ */
+ else if (position <= offset && offset < position + length) {
+ uint32_t n = MIN (position - offset + length, count);
+ memcpy (buf, &buffer[offset-position], n);
+ buf += n;
+ offset += n;
+ count -= n;
+ }
+
+ /* Does the request start immediately after the prefetch buffer?
+ * This is a “hit” allowing us to double the window size.
+ */
+ else if (offset == position + length) {
+ window = MIN (window * 2, READAHEAD_MAX);
+ if (fill_readahead (next_ops, nxdata, count, offset, flags, err) == -1)
+ goto err;
+ }
+
+ /* Else it's a “miss”. Reset everything and start again. */
+ else
+ length = 0;
+ }
+
+ pthread_mutex_unlock (&lock);
+ return 0;
+
+ err:
+ pthread_mutex_unlock (&lock);
+ return -1;
+}
+
+/* Any writes or write-like operations kill the prefetch buffer.
+ *
+ * We could do better here, but for the current use case of this
+ * filter it doesn't matter. XXX
+ */
+
+static void
+kill_readahead (void)
+{
+ pthread_mutex_lock (&lock);
+ window = READAHEAD_MIN;
+ length = 0;
+ pthread_mutex_unlock (&lock);
+}
+
+static int
+readahead_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle,
+ const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ kill_readahead ();
+ return next_ops->pwrite (nxdata, buf, count, offset, flags, err);
+}
+
+static int
+readahead_trim (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle,
+ uint32_t count, uint64_t offset, uint32_t flags,
+ int *err)
+{
+ kill_readahead ();
+ return next_ops->trim (nxdata, count, offset, flags, err);
+}
+
+static int
+readahead_zero (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle,
+ uint32_t count, uint64_t offset, uint32_t flags,
+ int *err)
+{
+ kill_readahead ();
+ return next_ops->zero (nxdata, count, offset, flags, err);
+}
+
+static struct nbdkit_filter filter = {
+ .name = "readahead",
+ .longname = "nbdkit readahead filter",
+ .version = PACKAGE_VERSION,
+ .unload = readahead_unload,
+ .prepare = readahead_prepare,
+ .get_size = readahead_get_size,
+ .pread = readahead_pread,
+ .pwrite = readahead_pwrite,
+ .trim = readahead_trim,
+ .zero = readahead_zero,
+};
+
+NBDKIT_REGISTER_FILTER(filter)
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-truncate-filter.pod
+
+filter_LTLIBRARIES = nbdkit-truncate-filter.la
+
+nbdkit_truncate_filter_la_SOURCES = \
+ truncate.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+
+nbdkit_truncate_filter_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include
+nbdkit_truncate_filter_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_truncate_filter_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/filters/filters.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-truncate-filter.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-truncate-filter.1: nbdkit-truncate-filter.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
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+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-truncate-filter.1: nbdkit-truncate-filter.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+=head1 NAME
+
+nbdkit-truncate-filter - change the size of plugins
+
+=head1 SYNOPSIS
+
+ nbdkit --filter=truncate plugin [truncate=SIZE]
+ [round-up=N] [round-down=N]
+
+=head1 DESCRIPTION
+
+C<nbdkit-truncate-filter> is a filter that changes the size of
+the underlying plugin. It can:
+
+=over 4
+
+=item *
+
+Make the plugin smaller (truncate it). Use the C<truncate=SIZE>
+parameter to set the smaller size.
+
+=item *
+
+Make the plugin larger (the additional bytes read back as zeroes).
+Use C<truncate=SIZE> to set the larger size.
+
+=item *
+
+Round the size of the plugin up or down to the next multiple of C<N>.
+Use either C<round-up=N> or C<round-down=N>.
+
+=back
+
+A common use for this filter is to handle NBD clients which have a
+problem dealing with device sizes which are not a multiple of 512
+bytes. Use C<round-up=512> to round the size up to the next multiple
+of 512 bytes. If the size is already a multiple of 512 bytes then
+this has no effect.
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<truncate=>SIZE
+
+Set the absolute size in bytes of the apparent device. This may be
+smaller or larger or the same as the underlying plugin.
+
+If the size is larger than the underlying plugin, reading the extra
+space returns zeroes. Writes are also permitted to the extra space,
+but you must only write zeroes (any attempts to write non-zero bytes
+will return an error back to the client).
+
+This parameter is optional.
+
+=item B<round-up=>N
+
+Round the size up to the next multiple of C<N> bytes. If the size of
+the underlying plugin is already a multiple of C<N> bytes, this has no
+effect.
+
+This parameter is optional.
+
+=item B<round-down=>N
+
+Round the size down to a multiple of C<N> bytes. If the size of the
+underlying plugin is already a multiple of C<N> bytes, this has no
+effect.
+
+This parameter is optional.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-file-plugin(1)>,
+L<nbdkit-filter(3)>,
+L<nbdkit-offset-filter(1)>,
+L<nbdkit-partition-filter(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <limits.h>
+#include <errno.h>
+
+#include <pthread.h>
+
+#include <nbdkit-filter.h>
+
+#include "ispowerof2.h"
+#include "iszero.h"
+#include "rounding.h"
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* These are the parameters. */
+static int64_t truncate_size = -1;
+static unsigned round_up = 0, round_down = 0;
+
+/* The real size of the underlying plugin. */
+static uint64_t real_size;
+
+/* The calculated size after applying the parameters. */
+static uint64_t size;
+
+/* This lock protects the real_size and size fields. */
+static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+
+static int
+parse_round_param (const char *key, const char *value, unsigned *ret)
+{
+ int64_t r;
+ unsigned u;
+
+ /* Parse it as a "size" quantity so we allow round-up=1M and similar. */
+ r = nbdkit_parse_size (value);
+ if (r == -1)
+ return -1;
+
+ /* Must not be zero or larger than an unsigned int. */
+ if (r == 0) {
+ nbdkit_error ("if set, the %s parameter must be > 0", key);
+ return -1;
+ }
+ if (r > UINT_MAX) {
+ nbdkit_error ("the %s parameter is too large", key);
+ return -1;
+ }
+ u = r;
+
+ /* Must be a power of 2. We could relax this in future. */
+ if (!is_power_of_2 (u)) {
+ nbdkit_error ("the %s parameter must be a power of 2", key);
+ return -1;
+ }
+
+ *ret = u;
+ return 0;
+}
+
+/* Called for each key=value passed on the command line. */
+static int
+truncate_config (nbdkit_next_config *next, void *nxdata,
+ const char *key, const char *value)
+{
+ if (strcmp (key, "truncate") == 0) {
+ truncate_size = nbdkit_parse_size (value);
+ if (truncate_size == -1)
+ return -1;
+ return 0;
+ }
+ else if (strcmp (key, "round-up") == 0) {
+ return parse_round_param (key, value, &round_up);
+ }
+ else if (strcmp (key, "round-down") == 0) {
+ return parse_round_param (key, value, &round_down);
+ }
+ else
+ return next (nxdata, key, value);
+}
+
+#define truncate_config_help \
+ "truncate=<SIZE> The new size.\n" \
+ "round-up=<N> Round up to next multiple of N.\n" \
+ "round-down=<N> Round down to multiple of N."
+
+static int64_t truncate_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle);
+
+/* In prepare, force a call to get_size which sets the real_size & size
+ * globals.
+ */
+static int
+truncate_prepare (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ int64_t r;
+
+ r = truncate_get_size (next_ops, nxdata, handle);
+ return r >= 0 ? 0 : -1;
+}
+
+/* Get the size. As a side effect, calculate the size to serve. */
+static int64_t
+truncate_get_size (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ int64_t r, ret;
+
+ r = next_ops->get_size (nxdata);
+ if (r == -1)
+ return -1;
+
+ pthread_mutex_lock (&lock);
+
+ real_size = size = r;
+
+ /* The truncate, round-up and round-down parameters are treated as
+ * separate operations. It's possible to specify more than one,
+ * although perhaps not very useful.
+ */
+ if (truncate_size >= 0)
+ size = truncate_size;
+ if (round_up > 0)
+ size = ROUND_UP (size, round_up);
+ if (round_down > 0)
+ size = ROUND_DOWN (size, round_down);
+ ret = size;
+
+ pthread_mutex_unlock (&lock);
+
+ return ret;
+}
+
+/* Read data. */
+static int
+truncate_pread (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ int r;
+ uint32_t n;
+ uint64_t real_size_copy;
+
+ pthread_mutex_lock (&lock);
+ real_size_copy = real_size;
+ pthread_mutex_unlock (&lock);
+
+ if (offset < real_size_copy) {
+ if (offset + count <= real_size_copy)
+ n = count;
+ else
+ n = real_size_copy - offset;
+ r = next_ops->pread (nxdata, buf, n, offset, flags, err);
+ if (r == -1)
+ return -1;
+ count -= n;
+ buf += n;
+ }
+
+ if (count > 0)
+ memset (buf, 0, count);
+
+ return 0;
+}
+
+/* Write data. */
+static int
+truncate_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle,
+ const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ int r;
+ uint32_t n;
+ uint64_t real_size_copy;
+
+ pthread_mutex_lock (&lock);
+ real_size_copy = real_size;
+ pthread_mutex_unlock (&lock);
+
+ if (offset < real_size_copy) {
+ if (offset + count <= real_size_copy)
+ n = count;
+ else
+ n = real_size_copy - offset;
+ r = next_ops->pwrite (nxdata, buf, n, offset, flags, err);
+ if (r == -1)
+ return -1;
+ count -= n;
+ buf += n;
+ }
+
+ if (count > 0) {
+ /* The caller must be writing zeroes, else it's an error. */
+ if (!is_zero (buf, count)) {
+ nbdkit_error ("truncate: write beyond end of underlying device");
+ *err = ENOSPC;
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+/* Trim data. */
+static int
+truncate_trim (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ uint32_t n;
+ uint64_t real_size_copy;
+
+ pthread_mutex_lock (&lock);
+ real_size_copy = real_size;
+ pthread_mutex_unlock (&lock);
+
+ if (offset < real_size_copy) {
+ if (offset + count <= real_size_copy)
+ n = count;
+ else
+ n = real_size_copy - offset;
+ return next_ops->trim (nxdata, n, offset, flags, err);
+ }
+ return 0;
+}
+
+/* Zero data. */
+static int
+truncate_zero (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ uint32_t n;
+ uint64_t real_size_copy;
+
+ pthread_mutex_lock (&lock);
+ real_size_copy = real_size;
+ pthread_mutex_unlock (&lock);
+
+ if (offset < real_size_copy) {
+ if (offset + count <= real_size_copy)
+ n = count;
+ else
+ n = real_size_copy - offset;
+ return next_ops->zero (nxdata, n, offset, flags, err);
+ }
+ return 0;
+}
+
+/* Extents. */
+static int
+truncate_extents (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset,
+ uint32_t flags, struct nbdkit_extents *extents, int *err)
+{
+ uint32_t n;
+ uint64_t real_size_copy;
+ struct nbdkit_extents *extents2;
+ size_t i;
+
+ pthread_mutex_lock (&lock);
+ real_size_copy = real_size;
+ pthread_mutex_unlock (&lock);
+
+ /* If the entire request is beyond the end of the underlying plugin
+ * then this is the easy case: return a hole up to the end of the
+ * file.
+ */
+ if (offset >= real_size_copy) {
+ int r = nbdkit_add_extent (extents,
+ real_size_copy, truncate_size - real_size_copy,
+ NBDKIT_EXTENT_ZERO|NBDKIT_EXTENT_HOLE);
+ if (r == -1)
+ *err = errno;
+ return r;
+ }
+
+ /* We're asked first for extents information about the plugin, then
+ * possibly (if truncating larger) for the hole after the plugin.
+ * Since we're not required to provide all of this information, the
+ * easiest thing is to only return data from the plugin. We will be
+ * called later about the hole. However we do need to make sure
+ * that the extents array is truncated to the real size, hence we
+ * have to create a new extents array, ask the plugin, then copy the
+ * returned data to the original array.
+ */
+ extents2 = nbdkit_extents_new (offset, real_size_copy);
+ if (offset + count <= real_size_copy)
+ n = count;
+ else
+ n = real_size_copy - offset;
+ if (next_ops->extents (nxdata, n, offset, flags, extents2, err) == -1) {
+ nbdkit_extents_free (extents2);
+ return -1;
+ }
+
+ for (i = 0; i < nbdkit_extents_count (extents2); ++i) {
+ struct nbdkit_extent e = nbdkit_get_extent (extents2, i);
+
+ if (nbdkit_add_extent (extents, e.offset, e.length, e.type) == -1) {
+ nbdkit_extents_free (extents2);
+ return -1;
+ }
+ }
+ nbdkit_extents_free (extents2);
+
+ return 0;
+}
+
+static struct nbdkit_filter filter = {
+ .name = "truncate",
+ .longname = "nbdkit truncate filter",
+ .version = PACKAGE_VERSION,
+ .config = truncate_config,
+ .config_help = truncate_config_help,
+ .prepare = truncate_prepare,
+ .get_size = truncate_get_size,
+ .pread = truncate_pread,
+ .pwrite = truncate_pwrite,
+ .trim = truncate_trim,
+ .zero = truncate_zero,
+ .extents = truncate_extents,
+};
+
+NBDKIT_REGISTER_FILTER(filter)
--- /dev/null
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-xz-filter.pod
+
+if HAVE_LIBLZMA
+
+filter_LTLIBRARIES = nbdkit-xz-filter.la
+
+nbdkit_xz_filter_la_SOURCES = \
+ blkcache.c \
+ blkcache.h \
+ xz.c \
+ xzfile.c \
+ xzfile.h \
+ $(top_srcdir)/include/nbdkit-filter.h
+
+nbdkit_xz_filter_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_xz_filter_la_CFLAGS = \
+ $(WARNINGS_CFLAGS) \
+ $(LIBLZMA_CFLAGS)
+nbdkit_xz_filter_la_LIBADD = \
+ $(LIBLZMA_LIBS)
+nbdkit_xz_filter_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/filters/filters.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-xz-filter.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-xz-filter.1: nbdkit-xz-filter.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+
+endif
--- /dev/null
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+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
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+
+@SET_MAKE@
+
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+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
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+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
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+#
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+# * Neither the name of Red Hat nor the names of its contributors may be
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man: install-man1
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f ./$(DEPDIR)/nbdkit_xz_filter_la-blkcache.Plo
+ -rm -f ./$(DEPDIR)/nbdkit_xz_filter_la-xz.Plo
+ -rm -f ./$(DEPDIR)/nbdkit_xz_filter_la-xzfile.Plo
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-filterLTLIBRARIES uninstall-man
+
+uninstall-man: uninstall-man1
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+ clean-filterLTLIBRARIES clean-generic clean-libtool \
+ cscopelist-am ctags ctags-am distclean distclean-compile \
+ distclean-generic distclean-libtool distclean-tags distdir dvi \
+ dvi-am html html-am info info-am install install-am \
+ install-data install-data-am install-dvi install-dvi-am \
+ install-exec install-exec-am install-filterLTLIBRARIES \
+ install-html install-html-am install-info install-info-am \
+ install-man install-man1 install-pdf install-pdf-am install-ps \
+ install-ps-am install-strip installcheck installcheck-am \
+ installdirs maintainer-clean maintainer-clean-generic \
+ mostlyclean mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool pdf pdf-am ps ps-am tags tags-am uninstall \
+ uninstall-am uninstall-filterLTLIBRARIES uninstall-man \
+ uninstall-man1
+
+.PRECIOUS: Makefile
+
+
+@HAVE_LIBLZMA_TRUE@@HAVE_POD_TRUE@nbdkit-xz-filter.1: nbdkit-xz-filter.pod
+@HAVE_LIBLZMA_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_LIBLZMA_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_LIBLZMA_TRUE@@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <stdint.h>
+#include <inttypes.h>
+
+#include <nbdkit-plugin.h>
+
+#include "blkcache.h"
+
+/* Implemented as a very simple LRU list with a fixed depth. */
+struct blkcache {
+ size_t maxdepth;
+ struct block *blocks;
+ blkcache_stats stats;
+};
+
+struct block {
+ uint64_t start;
+ uint64_t size;
+ char *data;
+};
+
+blkcache *
+new_blkcache (size_t maxdepth)
+{
+ blkcache *c;
+
+ c = malloc (sizeof *c);
+ if (!c) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+
+ c->blocks = calloc (maxdepth, sizeof (struct block));
+ if (!c->blocks) {
+ nbdkit_error ("calloc: %m");
+ free (c);
+ return NULL;
+ }
+ c->maxdepth = maxdepth;
+ c->stats.hits = c->stats.misses = 0;
+
+ return c;
+}
+
+void
+free_blkcache (blkcache *c)
+{
+ size_t i;
+
+ for (i = 0; i < c->maxdepth; ++i)
+ free (c->blocks[i].data);
+ free (c->blocks);
+ free (c);
+}
+
+char *
+get_block (blkcache *c, uint64_t offset, uint64_t *start, uint64_t *size)
+{
+ size_t i;
+ struct block tmp;
+
+ for (i = 0; i < c->maxdepth; ++i) {
+ if (c->blocks[i].data != NULL &&
+ c->blocks[i].start <= offset &&
+ offset < c->blocks[i].start + c->blocks[i].size) {
+ /* This block is now most recently used, so put it at the start. */
+ if (i > 0) {
+ tmp = c->blocks[0];
+ c->blocks[0] = c->blocks[i];
+ c->blocks[i] = tmp;
+ }
+
+ c->stats.hits++;
+ *start = c->blocks[0].start;
+ *size = c->blocks[0].size;
+ return c->blocks[0].data;
+ }
+ }
+
+ c->stats.misses++;
+ return NULL;
+}
+
+int
+put_block (blkcache *c, uint64_t start, uint64_t size, char *data)
+{
+ size_t i;
+
+ /* Eject the least recently used block. */
+ i = c->maxdepth-1;
+ if (c->blocks[i].data != NULL)
+ free (c->blocks[i].data);
+
+ for (; i >= 1; --i)
+ c->blocks[i] = c->blocks[i-1];
+
+ /* The new block is most recently used, so it goes at the start. */
+ c->blocks[0].start = start;
+ c->blocks[0].size = size;
+ c->blocks[0].data = data;
+
+ return 0;
+}
+
+void
+blkcache_get_stats (blkcache *c, blkcache_stats *ret)
+{
+ memcpy (ret, &c->stats, sizeof (c->stats));
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_BLKCACHE_H
+#define NBDKIT_BLKCACHE_H
+
+typedef struct blkcache blkcache;
+
+typedef struct blkcache_stats {
+ size_t hits;
+ size_t misses;
+} blkcache_stats;
+
+extern blkcache *new_blkcache (size_t maxdepth);
+extern void free_blkcache (blkcache *) __attribute__((__nonnull__ (1)));
+extern char *get_block (blkcache *, uint64_t offset,
+ uint64_t *start, uint64_t *size)
+ __attribute__((__nonnull__ (1, 3, 4)));
+extern int put_block (blkcache *, uint64_t start, uint64_t size, char *data)
+ __attribute__((__nonnull__ (1, 4)));
+extern void blkcache_get_stats (blkcache *, blkcache_stats *ret)
+ __attribute__((__nonnull__ (1, 2)));
+
+#endif /* NBDKIT_XZFILE_H */
--- /dev/null
+=head1 NAME
+
+nbdkit-xz-filter - nbdkit xz filter
+
+=head1 SYNOPSIS
+
+ nbdkit --filter=xz file FILENAME.xz
+
+ nbdkit --filter=xz curl https://example.com/FILENAME.xz
+
+=head1 DESCRIPTION
+
+C<nbdkit-xz-filter> is a filter for L<nbdkit(1)> which uncompresses
+the underlying plugin on the fly. The filter only supports read-only
+connections.
+
+=head2 Getting best random access performance from xz
+
+L<xz(1)> files are split into streams and blocks. Most xz files
+contain only one stream which contains one or more blocks. You can
+find out how many streams and blocks are in an xz file by doing:
+
+ $ xz --list winxp.img.xz
+ Strms Blocks Compressed Uncompressed Ratio Check Filename
+ 1 1 2,100.0 MiB 6,144.0 MiB 0.342 CRC64 winxp.img.xz
+ ↑↑↑ ↑↑↑
+ streams blocks
+
+xz files are seekable on block boundaries only. Seeking is done by
+seeking directly to the lower block boundary, then uncompressing data
+until the precise byte is reached. As uncompressing xz data is slow,
+B<to get best random access performance, you must prepare your xz
+files with many small blocks.>
+
+Use the I<--block-size> option with a small-ish block size. For
+example this is the same image compressed with a 16 MB block size:
+
+ $ xz --best --block-size=16777216 winxp.img
+ ─────────────────────
+ $ xz --list winxp.img.xz
+ Strms Blocks Compressed Uncompressed Ratio Check Filename
+ 1 384 2,120.1 MiB 6,144.0 MiB 0.345 CRC64 winxp.img.xz
+ ↑↑↑
+ blocks
+
+This file can be accessed randomly. At most 16 MB will have to be
+uncompressed to seek to any byte.
+
+As you would expect, xz cannot compress as efficiently when using a
+smaller block size. The space penalty in the above example is
+S<E<lt> 1%> of the compressed file size.
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<xz-max-block=>SIZE
+
+The maximum block size that the filter will read. The filter will
+refuse to read xz files that contain any block larger than this size.
+
+See the discussion above about creating xz files with small block
+sizes in order to reduce memory usage and increase performance.
+
+This parameter is optional. If not specified it defaults to 512M.
+
+=item B<xz-max-depth=>N
+
+Maximum number of blocks stored in the LRU block cache.
+
+This parameter is optional. If not specified it defaults to 8.
+
+The filter may allocate up to
+S<maximum block size in file * maxdepth>
+bytes of memory I<per connection>.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-filter(3)>,
+L<nbdkit-curl-plugin(1)>,
+L<nbdkit-file-plugin(1)>,
+L<xz(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013-2018 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include <lzma.h>
+
+#include <nbdkit-filter.h>
+
+#include "xzfile.h"
+#include "blkcache.h"
+
+static uint64_t maxblock = 512 * 1024 * 1024;
+static size_t maxdepth = 8;
+
+static int
+xz_config (nbdkit_next_config *next, void *nxdata,
+ const char *key, const char *value)
+{
+ if (strcmp (key, "xz-max-block") == 0) {
+ int64_t r = nbdkit_parse_size (value);
+ if (r == -1)
+ return -1;
+ maxblock = (uint64_t) r;
+ return 0;
+ }
+ else if (strcmp (key, "xz-max-depth") == 0) {
+ size_t r;
+
+ if (sscanf (value, "%zu", &r) != 1) {
+ nbdkit_error ("could not parse 'xz-max-depth' parameter");
+ return -1;
+ }
+ if (r == 0) {
+ nbdkit_error ("'xz-max-depth' parameter must be >= 1");
+ return -1;
+ }
+
+ maxdepth = r;
+ return 0;
+ }
+ else
+ return next (nxdata, key, value);
+}
+
+#define xz_config_help \
+ "xz-max-block=<SIZE> (optional) Maximum block size allowed (default: 512M)\n"\
+ "xz-max-depth=<N> (optional) Maximum blocks in cache (default: 4)\n"
+
+/* The per-connection handle. */
+struct xz_handle {
+ xzfile *xz;
+
+ /* Block cache. */
+ blkcache *c;
+};
+
+/* Create the per-connection handle. */
+static void *
+xz_open (nbdkit_next_open *next, void *nxdata, int readonly)
+{
+ struct xz_handle *h;
+
+ /* Always pass readonly=1 to the underlying plugin. */
+ if (next (nxdata, 1) == -1)
+ return NULL;
+
+ h = malloc (sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+
+ h->c = new_blkcache (maxdepth);
+ if (!h->c) {
+ free (h);
+ return NULL;
+ }
+
+ /* Initialized in xz_prepare. */
+ h->xz = NULL;
+
+ return h;
+}
+
+/* Free up the per-connection handle. */
+static void
+xz_close (void *handle)
+{
+ struct xz_handle *h = handle;
+ blkcache_stats stats;
+
+ if (h->c) {
+ blkcache_get_stats (h->c, &stats);
+
+ nbdkit_debug ("cache: hits = %zu, misses = %zu", stats.hits, stats.misses);
+ }
+
+ xzfile_close (h->xz);
+ free_blkcache (h->c);
+ free (h);
+}
+
+static int
+xz_prepare (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle)
+{
+ struct xz_handle *h = handle;
+
+ h->xz = xzfile_open (next_ops, nxdata);
+ if (!h->xz)
+ return -1;
+
+ if (maxblock < xzfile_max_uncompressed_block_size (h->xz)) {
+ nbdkit_error ("xz file largest block is bigger than maxblock\n"
+ "Either recompress the xz file with smaller blocks "
+ "(see nbdkit-xz-plugin(1))\n"
+ "or make maxblock parameter bigger.\n"
+ "maxblock = %" PRIu64 " (bytes)\n"
+ "largest block in xz file = %" PRIu64 " (bytes)",
+ maxblock,
+ xzfile_max_uncompressed_block_size (h->xz));
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Get the file size. */
+static int64_t
+xz_get_size (struct nbdkit_next_ops *next_ops, void *nxdata, void *handle)
+{
+ struct xz_handle *h = handle;
+
+ return xzfile_get_size (h->xz);
+}
+
+/* We need this because otherwise the layer below can_write is called
+ * and that might return true (eg. if the plugin has a pwrite method
+ * at all), resulting in writes being passed through to the layer
+ * below. This is possibly a bug in nbdkit.
+ */
+static int
+xz_can_write (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ return 0;
+}
+
+/* Similar to above. However xz files themselves do support
+ * sparseness so in future we should generate extents information. XXX
+ */
+static int
+xz_can_extents (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ return 0;
+}
+
+/* Read data from the file. */
+static int
+xz_pread (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ struct xz_handle *h = handle;
+ char *data;
+ uint64_t start, size;
+ uint32_t n;
+
+ /* Find the block in the cache. */
+ data = get_block (h->c, offset, &start, &size);
+ if (!data) {
+ /* Not in the cache. We need to read the block from the xz file. */
+ data = xzfile_read_block (h->xz, next_ops, nxdata, flags, err,
+ offset, &start, &size);
+ if (data == NULL)
+ return -1;
+ put_block (h->c, start, size, data);
+ }
+
+ /* It's possible if the blocks are really small or oddly aligned or
+ * if the requests are large that we need to read the following
+ * block to satisfy the request.
+ */
+ n = count;
+ if (start + size - offset < n)
+ n = start + size - offset;
+
+ memcpy (buf, &data[offset-start], n);
+ buf += n;
+ count -= n;
+ offset += n;
+ if (count > 0)
+ return xz_pread (next_ops, nxdata, h, buf, count, offset, flags, err);
+
+ return 0;
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS
+
+static struct nbdkit_filter filter = {
+ .name = "xz",
+ .longname = "nbdkit XZ filter",
+ .version = PACKAGE_VERSION,
+ .config = xz_config,
+ .config_help = xz_config_help,
+ .open = xz_open,
+ .close = xz_close,
+ .prepare = xz_prepare,
+ .get_size = xz_get_size,
+ .can_write = xz_can_write,
+ .can_extents = xz_can_extents,
+ .pread = xz_pread,
+};
+
+NBDKIT_REGISTER_FILTER(filter)
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* liblzma is a complex interface, so abstract it here. */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <sys/types.h>
+
+#include <nbdkit-filter.h>
+
+#include <lzma.h>
+
+#include "xzfile.h"
+
+#ifndef O_CLOEXEC
+#define O_CLOEXEC 0
+#endif
+
+#define XZ_HEADER_MAGIC "\xfd" "7zXZ\0"
+#define XZ_HEADER_MAGIC_LEN 6
+#define XZ_FOOTER_MAGIC "YZ"
+#define XZ_FOOTER_MAGIC_LEN 2
+
+struct xzfile {
+ lzma_index *idx;
+ size_t nr_streams;
+ size_t nr_blocks;
+ uint64_t max_uncompressed_block_size;
+};
+
+static bool check_header_magic (struct nbdkit_next_ops *next_ops, void *nxdata);
+static lzma_index *parse_indexes (struct nbdkit_next_ops *next_ops, void *nxdata, size_t *);
+static int iter_indexes (lzma_index *idx, size_t *, uint64_t *);
+
+xzfile *
+xzfile_open (struct nbdkit_next_ops *next_ops, void *nxdata)
+{
+ xzfile *xz;
+ uint64_t size;
+
+ xz = malloc (sizeof *xz);
+ if (xz == NULL) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+
+ /* Check file magic. */
+ if (!check_header_magic (next_ops, nxdata)) {
+ nbdkit_error ("xz: not an xz file");
+ goto err1;
+ }
+
+ /* Read and parse the indexes. */
+ xz->idx = parse_indexes (next_ops, nxdata, &xz->nr_streams);
+ if (xz->idx == NULL)
+ goto err1;
+
+ /* Iterate over indexes to find the number of and largest block. */
+ if (iter_indexes (xz->idx,
+ &xz->nr_blocks, &xz->max_uncompressed_block_size) == -1)
+ goto err1;
+
+ size = lzma_index_uncompressed_size (xz->idx);
+ nbdkit_debug ("xz: size %" PRIu64 " bytes (%.1fM)",
+ size, size / 1024.0 / 1024.0);
+ nbdkit_debug ("xz: %zu streams, %zu blocks", xz->nr_streams, xz->nr_blocks);
+ nbdkit_debug ("xz: maximum uncompressed block size %" PRIu64 " bytes (%.1fM)",
+ xz->max_uncompressed_block_size,
+ xz->max_uncompressed_block_size / 1024.0 / 1024.0);
+
+ return xz;
+
+ err1:
+ free (xz);
+ return NULL;
+}
+
+static bool
+check_header_magic (struct nbdkit_next_ops *next_ops, void *nxdata)
+{
+ char buf[XZ_HEADER_MAGIC_LEN];
+ int err;
+
+ if (next_ops->pread (nxdata, buf, XZ_HEADER_MAGIC_LEN, 0, 0, &err) == -1) {
+ nbdkit_error ("xz: could not read header magic: error %d", err);
+ return false;
+ }
+ if (memcmp (buf, XZ_HEADER_MAGIC, XZ_HEADER_MAGIC_LEN) != 0)
+ return false;
+ return true;
+}
+
+/* For explanation of this function, see src/xz/list.c:parse_indexes
+ * in the xz sources.
+ */
+static lzma_index *
+parse_indexes (struct nbdkit_next_ops *next_ops, void *nxdata,
+ size_t *nr_streams)
+{
+ lzma_ret r;
+ int64_t size, pos, index_size, offs;
+ int err;
+ uint8_t footer[LZMA_STREAM_HEADER_SIZE];
+ uint8_t header[LZMA_STREAM_HEADER_SIZE];
+ lzma_stream_flags footer_flags;
+ lzma_stream_flags header_flags;
+ lzma_stream strm = LZMA_STREAM_INIT;
+ lzma_index *combined_index = NULL;
+ lzma_index *this_index = NULL;
+ lzma_vli stream_padding = 0;
+
+ *nr_streams = 0;
+
+ /* Check file size is a multiple of 4 bytes. */
+ pos = size = next_ops->get_size (nxdata);
+ if (pos == -1) {
+ nbdkit_error ("xz: get_size: %m");
+ goto err;
+ }
+ if ((pos & 3) != 0) {
+ nbdkit_error ("xz: not an xz file: size is not a multiple of 4 bytes");
+ goto err;
+ }
+
+ /* Jump backwards through the file identifying each stream. */
+ while (pos > 0) {
+ nbdkit_debug ("looping through streams: pos = %" PRIi64, pos);
+
+ if (pos < LZMA_STREAM_HEADER_SIZE) {
+ nbdkit_error ("xz: corrupted file at %" PRIi64, pos);
+ goto err;
+ }
+
+ if (next_ops->pread (nxdata, footer, LZMA_STREAM_HEADER_SIZE,
+ pos - LZMA_STREAM_HEADER_SIZE,
+ 0, &err) == -1) {
+ nbdkit_error ("xz: read stream footer: error %d", err);
+ goto err;
+ }
+ /* Skip stream padding. */
+ if (footer[8] == 0 && footer[9] == 0 &&
+ footer[10] == 0 && footer[11] == 0) {
+ stream_padding += 4;
+ pos -= 4;
+ continue;
+ }
+
+ pos -= LZMA_STREAM_HEADER_SIZE;
+ (*nr_streams)++;
+
+ nbdkit_debug ("decode stream footer at pos = %" PRIi64, pos);
+
+ /* Does the stream footer look reasonable? */
+ r = lzma_stream_footer_decode (&footer_flags, footer);
+ if (r != LZMA_OK) {
+ nbdkit_error ("xz: invalid stream footer (error %d)", r);
+ goto err;
+ }
+ nbdkit_debug ("backward_size = %" PRIu64,
+ (uint64_t) footer_flags.backward_size);
+ index_size = footer_flags.backward_size;
+ if (pos < index_size + LZMA_STREAM_HEADER_SIZE) {
+ nbdkit_error ("xz: invalid stream footer");
+ goto err;
+ }
+
+ pos -= index_size;
+ nbdkit_debug ("decode index at pos = %" PRIi64, pos);
+
+ /* Decode the index. */
+ r = lzma_index_decoder (&strm, &this_index, UINT64_MAX);
+ if (r != LZMA_OK) {
+ nbdkit_error ("xz: invalid stream index (error %d)", r);
+ goto err;
+ }
+
+ offs = pos;
+ do {
+ uint8_t buf[BUFSIZ];
+
+ strm.avail_in = index_size;
+ if (strm.avail_in > BUFSIZ)
+ strm.avail_in = BUFSIZ;
+ if (pos + strm.avail_in > size)
+ strm.avail_in = size - pos;
+
+ if (next_ops->pread (nxdata, buf, strm.avail_in, offs, 0, &err) == -1) {
+ nbdkit_error ("xz: read index: error %d", err);
+ goto err;
+ }
+ offs += strm.avail_in;
+ index_size -= strm.avail_in;
+
+ strm.next_in = buf;
+ r = lzma_code (&strm, LZMA_RUN);
+ } while (r == LZMA_OK);
+
+ if (r != LZMA_STREAM_END) {
+ nbdkit_error ("xz: could not parse index (error %d)", r);
+ goto err;
+ }
+
+ pos -= lzma_index_total_size (this_index) + LZMA_STREAM_HEADER_SIZE;
+
+ nbdkit_debug ("decode stream header at pos = %" PRIi64, pos);
+
+ /* Read and decode the stream header. */
+ if (next_ops->pread (nxdata, header, LZMA_STREAM_HEADER_SIZE, pos, 0,
+ &err) == -1) {
+ nbdkit_error ("xz: read stream header: error %d", err);
+ goto err;
+ }
+
+ r = lzma_stream_header_decode (&header_flags, header);
+ if (r != LZMA_OK) {
+ nbdkit_error ("xz: invalid stream header (error %d)", r);
+ goto err;
+ }
+
+ /* Header and footer of the stream should be equal. */
+ r = lzma_stream_flags_compare (&header_flags, &footer_flags);
+ if (r != LZMA_OK) {
+ nbdkit_error ("xz: header and footer of stream are not equal (error %d)",
+ r);
+ goto err;
+ }
+
+ /* Store the decoded stream flags in this_index. */
+ r = lzma_index_stream_flags (this_index, &footer_flags);
+ if (r != LZMA_OK) {
+ nbdkit_error ("xz: cannot read stream_flags from index (error %d)", r);
+ goto err;
+ }
+
+ /* Store the amount of stream padding so far. Needed to calculate
+ * compressed offsets correctly in multi-stream files.
+ */
+ r = lzma_index_stream_padding (this_index, stream_padding);
+ if (r != LZMA_OK) {
+ nbdkit_error ("xz: cannot set stream_padding in index (error %d)", r);
+ goto err;
+ }
+
+ if (combined_index != NULL) {
+ r = lzma_index_cat (this_index, combined_index, NULL);
+ if (r != LZMA_OK) {
+ nbdkit_error ("xz: cannot combine indexes");
+ goto err;
+ }
+ }
+
+ combined_index = this_index;
+ this_index = NULL;
+ }
+
+ lzma_end (&strm);
+
+ return combined_index;
+
+ err:
+ lzma_end (&strm);
+ lzma_index_end (this_index, NULL);
+ lzma_index_end (combined_index, NULL);
+ return NULL;
+}
+
+/* Iterate over the indexes to find the number of blocks and
+ * the largest block.
+ */
+static int
+iter_indexes (lzma_index *idx,
+ size_t *nr_blocks, uint64_t *max_uncompressed_block_size)
+{
+ lzma_index_iter iter;
+
+ *nr_blocks = 0;
+ *max_uncompressed_block_size = 0;
+
+ lzma_index_iter_init (&iter, idx);
+ while (!lzma_index_iter_next (&iter, LZMA_INDEX_ITER_NONEMPTY_BLOCK)) {
+ if (iter.block.uncompressed_size > *max_uncompressed_block_size)
+ *max_uncompressed_block_size = iter.block.uncompressed_size;
+ (*nr_blocks)++;
+ }
+
+ return 0;
+}
+
+void
+xzfile_close (xzfile *xz)
+{
+ if (xz) {
+ lzma_index_end (xz->idx, NULL);
+ free (xz);
+ }
+}
+
+uint64_t
+xzfile_max_uncompressed_block_size (xzfile *xz)
+{
+ return xz->max_uncompressed_block_size;
+}
+
+uint64_t
+xzfile_get_size (xzfile *xz)
+{
+ return lzma_index_uncompressed_size (xz->idx);
+}
+
+char *
+xzfile_read_block (xzfile *xz,
+ struct nbdkit_next_ops *next_ops,
+ void *nxdata, uint32_t flags, int *err,
+ uint64_t offset,
+ uint64_t *start_rtn, uint64_t *size_rtn)
+{
+ int64_t offs, size;
+ lzma_index_iter iter;
+ uint8_t header[LZMA_BLOCK_HEADER_SIZE_MAX];
+ lzma_block block;
+ lzma_filter filters[LZMA_FILTERS_MAX + 1];
+ lzma_ret r;
+ lzma_stream strm = LZMA_STREAM_INIT;
+ const size_t bufsize = 1024 * 1024;
+ unsigned char *buf = NULL;
+ char *data = NULL;
+ size_t i;
+
+ /* Read the total size of the underlying disk, so we don't
+ * read over the end.
+ */
+ size = next_ops->get_size (nxdata);
+ if (size == -1) {
+ nbdkit_error ("xz: get_size: %m");
+ return NULL;
+ }
+
+ /* Locate the block containing the uncompressed offset. */
+ lzma_index_iter_init (&iter, xz->idx);
+ if (lzma_index_iter_locate (&iter, offset)) {
+ nbdkit_error ("cannot find offset %" PRIu64 " in the xz file", offset);
+ return NULL;
+ }
+
+ *start_rtn = iter.block.uncompressed_file_offset;
+ *size_rtn = iter.block.uncompressed_size;
+
+ nbdkit_debug ("seek: block number %d at file offset %" PRIu64,
+ (int) iter.block.number_in_file,
+ (uint64_t) iter.block.compressed_file_offset);
+
+ /* Read the block header. Start by reading a single byte which
+ * tell us how big the block header is.
+ */
+ offs = iter.block.compressed_file_offset;
+ if (next_ops->pread (nxdata, header, 1, offs, 0, err) == -1) {
+ nbdkit_error ("xz: read: could not read block header byte: error %d", *err);
+ return NULL;
+ }
+ offs++;
+
+ if (header[0] == '\0') {
+ nbdkit_error ("xz: read: unexpected invalid block in file, header[0] = 0");
+ return NULL;
+ }
+
+ block.version = 0;
+ block.check = iter.stream.flags->check;
+ block.filters = filters;
+ block.header_size = lzma_block_header_size_decode (header[0]);
+
+ /* Now read and decode the block header. */
+ if (next_ops->pread (nxdata, &header[1], block.header_size-1, offs,
+ 0, err) == -1) {
+ nbdkit_error ("xz: read: could not read block of compressed data: "
+ "error %d", *err);
+ return NULL;
+ }
+ offs += block.header_size - 1;
+
+ r = lzma_block_header_decode (&block, NULL, header);
+ if (r != LZMA_OK) {
+ nbdkit_error ("invalid block header (error %d)", r);
+ return NULL;
+ }
+
+ /* What this actually does is it checks that the block header
+ * matches the index.
+ */
+ r = lzma_block_compressed_size (&block, iter.block.unpadded_size);
+ if (r != LZMA_OK) {
+ nbdkit_error ("cannot calculate compressed size (error %d)", r);
+ goto err1;
+ }
+
+ /* Read the block data. */
+ r = lzma_block_decoder (&strm, &block);
+ if (r != LZMA_OK) {
+ nbdkit_error ("invalid block (error %d)", r);
+ goto err1;
+ }
+
+ data = malloc (*size_rtn);
+ if (data == NULL) {
+ nbdkit_error ("malloc (%" PRIu64 " bytes): %m\n"
+ "NOTE: If this error occurs, you need to recompress your "
+ "xz files with a smaller block size. "
+ "Use: 'xz --block-size=16777216 ...'.",
+ *size_rtn);
+ goto err2;
+ }
+
+ buf = malloc (bufsize);
+ if (buf == NULL) {
+ nbdkit_error ("malloc: %m");
+ goto err2;
+ }
+
+ strm.next_in = NULL;
+ strm.avail_in = 0;
+ strm.next_out = (uint8_t *) data;
+ strm.avail_out = block.uncompressed_size;
+ do {
+ if (strm.avail_in == 0) {
+ strm.avail_in = bufsize;
+ if (offs + strm.avail_in > size)
+ strm.avail_in = size - offs;
+ if (strm.avail_in > 0) {
+ strm.next_in = buf;
+ if (next_ops->pread (nxdata, buf, strm.avail_in, offs, 0, err) == -1) {
+ nbdkit_error ("xz: read: error %d", *err);
+ goto err2;
+ }
+ offs += strm.avail_in;
+ }
+ }
+
+ r = lzma_code (&strm, LZMA_RUN);
+ } while (r == LZMA_OK);
+
+ if (r != LZMA_OK && r != LZMA_STREAM_END) {
+ nbdkit_error ("could not parse block data (error %d)", r);
+ goto err2;
+ }
+
+ lzma_end (&strm);
+
+ for (i = 0; filters[i].id != LZMA_VLI_UNKNOWN; ++i)
+ free (filters[i].options);
+
+ free (buf);
+
+ return data;
+
+ err2:
+ lzma_end (&strm);
+ err1:
+ for (i = 0; filters[i].id != LZMA_VLI_UNKNOWN; ++i)
+ free (filters[i].options);
+
+ free (data);
+ free (buf);
+
+ return NULL;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* liblzma is a complex interface, so abstract it here. */
+
+#ifndef NBDKIT_XZFILE_H
+#define NBDKIT_XZFILE_H
+
+#include <nbdkit-filter.h>
+
+typedef struct xzfile xzfile;
+
+/* Open (and verify) the named xz file. */
+extern xzfile *xzfile_open (struct nbdkit_next_ops *next_ops, void *nxdata);
+
+/* Close the file and free up all resources. */
+extern void xzfile_close (xzfile *);
+
+/* Get (uncompressed) size of the largest block in the file. */
+extern uint64_t xzfile_max_uncompressed_block_size (xzfile *);
+
+/* Get the total uncompressed size of the file. */
+extern uint64_t xzfile_get_size (xzfile *);
+
+/* Read the xz file block that contains the byte at 'offset' in the
+ * uncompressed file.
+ *
+ * The uncompressed block of data, which probably begins before the
+ * requested byte and ends after it, is returned. The caller must
+ * free it. NULL is returned if there was an error.
+ *
+ * The start offset & size of the block relative to the uncompressed
+ * file are returned in *start and *size.
+ */
+extern char *xzfile_read_block (xzfile *xz,
+ struct nbdkit_next_ops *next_ops,
+ void *nxdata, uint32_t flags, int *err,
+ uint64_t offset,
+ uint64_t *start, uint64_t *size);
+
+#endif /* NBDKIT_XZFILE_H */
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = \
+ README \
+ testcase_dir/newstyle-cflags \
+ testcase_dir/newstyle-cflags-exportname \
+ testcase_dir/newstyle-cflags-exportname-read4 \
+ testcase_dir/newstyle-cflags-go \
+ testcase_dir/newstyle-cflags-go-read \
+ testcase_dir/newstyle-cflags-go-read4 \
+ testcase_dir/newstyle-cflags-go-write
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
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+ elif test -n '$(MAKE_HOST)'; then \
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+ else \
+ false; \
+ fi; \
+}
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+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
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+ testcase_dir/newstyle-cflags-exportname \
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+
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+
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+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+Fuzzing nbdkit using the American Fuzzy Lop (afl) fuzzer
+--------------------------------------------------------
+
+We can fuzz nbdkit using the -s (read from stdin) option, and feeding
+in a file of "network" input. The stdout from nbdkit (ie. data that
+would normally be sent back to the client) is ignored.
+
+You will need to recompile nbdkit with afl instrumentation:
+
+ ./configure CC=/usr/bin/afl-gcc CXX=/usr/bin/afl-g++
+ make clean
+ make
+
+The fuzzing/testcase_dir directory contains some initial testcases
+that afl can use.
+
+Run multiple copies of afl-fuzz. Usually you should run 1 master (-M)
+and as many slaves (-S) as you can.
+
+Master:
+
+ mkdir -p fuzzing/sync_dir
+ afl-fuzz -i fuzzing/testcase_dir -o fuzzing/sync_dir -M fuzz01 \
+ ./server/nbdkit -s ./plugins/memory/.libs/nbdkit-memory-plugin.so size=1M
+
+Slaves:
+
+ # replace fuzzNN with fuzz02, fuzz03, etc.
+ afl-fuzz -i fuzzing/testcase_dir -o fuzzing/sync_dir -S fuzzNN \
+ ./server/nbdkit -s ./plugins/memory/.libs/nbdkit-memory-plugin.so size=1M
+
+Test Coverage
+-------------
+
+To find out if the fuzzing is covering all of the code, I used afl-cov
+(https://github.com/mrash/afl-cov). Usage is rather complex, so
+consult the README of that project, but in brief:
+
+(1) Create a second copy of the nbdkit source, and compile it with
+profiling:
+
+ ./configure CFLAGS="-O2 -g -pg -fprofile-arcs -ftest-coverage"
+ make clean
+ make
+
+(2) Assuming ../nbdkit-afl is the nbdkit source compiled with afl, and
+the current directory is nbdkit compiled with profiling, then run the
+command below. You can run this even while afl-fuzz is running.
+
+ afl-cov -d ../nbdkit-afl/fuzzing/sync_dir \
+ --code-dir . \
+ --coverage-cmd "cat AFL_FILE | ./server/nbdkit -s ./plugins/memory/.libs/nbdkit-memory-plugin.so size=1M"
+
+This will create an HTML test coverage report in
+../nbdkit-afl/fuzzing/sync_dir/cov/web/
+
+Notes
+-----
+
+To report security bugs, see ‘SECURITY’ in the top source directory.
+
+We only have testcases for the newstyle fixed protocol so far, but if
+people report that they are exposing the oldstyle protocol to the
+internet / untrusted clients then we could extend the testing for
+that.
+
+We have only fuzzed the memory plugin, which is convenient because it
+stores everything in memory and throws it away when nbdkit exits.
+Since plugins can have bugs as well as the core server, it may be
+productive to test other plugins and filters.
--- /dev/null
+/* CSS to make pod2html files look a little bit better. */
+
+body {
+ margin-left: 4em;
+}
+
+body p, body ul, ol, body dl {
+ margin-left: 2em;
+ width: 31em;
+}
+
+pre {
+ width: 31em;
+}
+
+li {
+ padding-bottom: 0.5em;
+}
+
+/* Code sections. */
+
+pre {
+ background-color: #f8f8f8;
+ color: rgb(204,0,0);
+ font-weight: 550;
+ border-left: 6px solid rgb(204,64,64);
+ padding: 6px;
+ margin-left: 1em;
+ font-size: 120%;
+}
+
+/* Bold, italic in man pages. */
+b, strong {
+ color: rgb(204,0,0);
+}
+
+i, em {
+ color: rgb(204,0,0);
+}
+
+/* Name heading. */
+
+body > h1:first-of-type {
+ display: none;
+}
+
+body > h1:first-of-type + p {
+ font-size: 125%;
+ font-weight: bold;
+ color: rgb(204,0,0);
+ margin-left: -32px;
+}
+
+/* Warning heading in man pages. */
+a[name="warning"] {
+ -moz-border-radius-topleft: 5px;
+ -moz-border-radius-topright: 5px;
+ border-radius-topleft: 5px;
+ border-radius-topright: 5px;
+
+ color: white;
+ background-color: rgb(204,0,0);
+}
+a[name="warning"]:before {
+ content: "\00a0\00a0\00a0";
+}
+a[name="warning"]:after {
+ content: "\00a0\00a0\00a0";
+}
+
+/* Put the index on the right hand side in a floating box. */
+ul[id="index"] {
+ float: right;
+ width: 18em;
+ border-left: 3em solid white;
+ background-color: #fcfcfc;
+ margin-top: 32px;
+ padding-top: 0px;
+ margin-left: 1em;
+ padding-left: 1em;
+ padding-right: 1em;
+ font-size: 90%;
+}
+
+ul[id="index"] a[href] {
+ text-decoration: none;
+}
+
+ul[id="index"] a[href]:hover {
+ text-decoration: underline;
+}
+
+ul[id="index"] a[href]:before {
+ content: '#\00a0';
+ color: rgb(204,0,0);
+ font-size: x-small;
+}
+
+ul[id="index"] {
+ width: 17em;
+ list-style: none;
+ margin-left: 0px;
+ margin-right: 0px;
+ padding-left: 0px;
+ padding-right: 0px;
+}
+
+ul[id="index"] > li {
+ margin-bottom: 0.5em;
+}
+
+ul[id="index"] > li ul {
+ width: 16em;
+ list-style: none;
+ margin-left: 0px;
+ margin-right: 0px;
+ padding-left: 0px;
+ padding-right: 0px;
+ margin-bottom: 0.5em;
+}
+
+ul[id="index"] > li ul li {
+ display: inline;
+ margin-right: 1em;
+}
+
+/*
+ul[id="index"] > li ul li:after {
+ color: #ccc;
+ content: '\2014';
+}
+*/
+
+/* Get rid of those horrible <hr>'s :-( */
+hr { display: none; }
+
+/* Demote <h1>'s and set rest of headers relative. */
+h1 {
+ font-size: 100%;
+ color: black;
+ border-bottom: solid 1px rgb(204,0,0);
+}
+
+h2 {
+ font-size: 95%;
+ border-bottom: none;
+}
+
+h3 {
+ font-size: 90%;
+}
+
+h4 {
+ font-size: 85%;
+}
--- /dev/null
+# nbdkit
+# Copyright (C) 2013 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+include_HEADERS = \
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+ case $$dist_files in \
+ */*) $(MKDIR_P) `echo "$$dist_files" | \
+ sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+ sort -u` ;; \
+ esac; \
+ for file in $$dist_files; do \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ if test -d $$d/$$file; then \
+ dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test -d "$(distdir)/$$file"; then \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+ else \
+ test -f "$(distdir)/$$file" \
+ || cp -p $$d/$$file "$(distdir)/$$file" \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+check: check-am
+all-am: Makefile $(HEADERS)
+installdirs:
+ for dir in "$(DESTDIR)$(includedir)"; do \
+ test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+ done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+ if test -z '$(STRIP)'; then \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ install; \
+ else \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
+
+clean-generic:
+ -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool mostlyclean-am
+
+distclean: distclean-am
+ -rm -f Makefile
+distclean-am: clean-am distclean-generic distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-includeHEADERS
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-generic mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-includeHEADERS
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am check check-am clean clean-generic \
+ clean-libtool cscopelist-am ctags ctags-am distclean \
+ distclean-generic distclean-libtool distclean-tags distdir dvi \
+ dvi-am html html-am info info-am install install-am \
+ install-data install-data-am install-dvi install-dvi-am \
+ install-exec install-exec-am install-html install-html-am \
+ install-includeHEADERS install-info install-info-am \
+ install-man install-pdf install-pdf-am install-ps \
+ install-ps-am install-strip installcheck installcheck-am \
+ installdirs maintainer-clean maintainer-clean-generic \
+ mostlyclean mostlyclean-generic mostlyclean-libtool pdf pdf-am \
+ ps ps-am tags tags-am uninstall uninstall-am \
+ uninstall-includeHEADERS
+
+.PRECIOUS: Makefile
+
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_COMMON_H
+#define NBDKIT_COMMON_H
+
+#if !defined (NBDKIT_PLUGIN_H) && !defined (NBDKIT_FILTER_H)
+#error this header file should not be directly included
+#endif
+
+#include <stdarg.h>
+#include <stdint.h>
+#include <errno.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#if defined(__GNUC__) || defined(__clang__)
+#define ATTRIBUTE_FORMAT_PRINTF(fmtpos, argpos) \
+ __attribute__((__format__ (__printf__, fmtpos, argpos)))
+#else
+#define ATTRIBUTE_FORMAT_PRINTF(fmtpos, argpos)
+#endif
+
+#define NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS 0
+#define NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS 1
+#define NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS 2
+#define NBDKIT_THREAD_MODEL_PARALLEL 3
+
+#define NBDKIT_FLAG_MAY_TRIM (1<<0) /* Maps to !NBD_CMD_FLAG_NO_HOLE */
+#define NBDKIT_FLAG_FUA (1<<1) /* Maps to NBD_CMD_FLAG_FUA */
+#define NBDKIT_FLAG_REQ_ONE (1<<2) /* Maps to NBD_CMD_FLAG_REQ_ONE */
+
+#define NBDKIT_FUA_NONE 0
+#define NBDKIT_FUA_EMULATE 1
+#define NBDKIT_FUA_NATIVE 2
+
+#define NBDKIT_EXTENT_HOLE (1<<0) /* Same as NBD_STATE_HOLE */
+#define NBDKIT_EXTENT_ZERO (1<<1) /* Same as NBD_STATE_ZERO */
+
+extern void nbdkit_error (const char *msg, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2);
+extern void nbdkit_verror (const char *msg, va_list args);
+extern void nbdkit_debug (const char *msg, ...) ATTRIBUTE_FORMAT_PRINTF (1, 2);
+extern void nbdkit_vdebug (const char *msg, va_list args);
+
+extern char *nbdkit_absolute_path (const char *path);
+extern int64_t nbdkit_parse_size (const char *str);
+extern int nbdkit_parse_bool (const char *str);
+extern int nbdkit_read_password (const char *value, char **password);
+extern char *nbdkit_realpath (const char *path);
+
+struct nbdkit_extents;
+extern int nbdkit_add_extent (struct nbdkit_extents *,
+ uint64_t offset, uint64_t length, uint32_t type);
+
+/* A static non-NULL pointer which can be used when you don't need a
+ * per-connection handle.
+ */
+#define NBDKIT_HANDLE_NOT_NEEDED (&errno)
+
+#ifdef __cplusplus
+}
+#endif
+
+#ifdef __cplusplus
+#define NBDKIT_CXX_LANG_C extern "C"
+#else
+#define NBDKIT_CXX_LANG_C /* nothing */
+#endif
+
+#endif /* NBDKIT_COMMON_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* See nbdkit-filter(3) for documentation and how to write a filter. */
+
+#ifndef NBDKIT_FILTER_H
+#define NBDKIT_FILTER_H
+
+#include <stdlib.h>
+
+#include <nbdkit-common.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+#define NBDKIT_FILTER_API_VERSION 2
+
+struct nbdkit_extent {
+ uint64_t offset;
+ uint64_t length;
+ uint32_t type;
+};
+
+extern struct nbdkit_extents *nbdkit_extents_new (uint64_t start, uint64_t end);
+extern void nbdkit_extents_free (struct nbdkit_extents *);
+extern size_t nbdkit_extents_count (const struct nbdkit_extents *);
+extern struct nbdkit_extent nbdkit_get_extent (const struct nbdkit_extents *,
+ size_t);
+
+typedef int nbdkit_next_config (void *nxdata,
+ const char *key, const char *value);
+typedef int nbdkit_next_config_complete (void *nxdata);
+typedef int nbdkit_next_open (void *nxdata,
+ int readonly);
+
+struct nbdkit_next_ops {
+ int64_t (*get_size) (void *nxdata);
+
+ int (*can_write) (void *nxdata);
+ int (*can_flush) (void *nxdata);
+ int (*is_rotational) (void *nxdata);
+ int (*can_trim) (void *nxdata);
+ int (*can_zero) (void *nxdata);
+ int (*can_extents) (void *nxdata);
+ int (*can_fua) (void *nxdata);
+ int (*can_multi_conn) (void *nxdata);
+
+ int (*pread) (void *nxdata, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err);
+ int (*pwrite) (void *nxdata,
+ const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err);
+ int (*flush) (void *nxdata, uint32_t flags, int *err);
+ int (*trim) (void *nxdata, uint32_t count, uint64_t offset, uint32_t flags,
+ int *err);
+ int (*zero) (void *nxdata, uint32_t count, uint64_t offset, uint32_t flags,
+ int *err);
+ int (*extents) (void *nxdata, uint32_t count, uint64_t offset, uint32_t flags,
+ struct nbdkit_extents *extents, int *err);
+};
+
+struct nbdkit_filter {
+ /* Do not set these fields directly; use NBDKIT_REGISTER_FILTER.
+ * They exist so that we can diagnose filters compiled against
+ * one version of the header with a runtime compiled against a
+ * different version.
+ */
+ int _api_version;
+ int _thread_model;
+
+ /* Because there is no ABI guarantee, new fields may be added
+ * where logically appropriate. */
+ const char *name;
+ const char *longname;
+ const char *version;
+ const char *description;
+
+ void (*load) (void);
+ void (*unload) (void);
+
+ int (*config) (nbdkit_next_config *next, void *nxdata,
+ const char *key, const char *value);
+ int (*config_complete) (nbdkit_next_config_complete *next, void *nxdata);
+ const char *config_help;
+
+ void * (*open) (nbdkit_next_open *next, void *nxdata,
+ int readonly);
+ void (*close) (void *handle);
+
+ int (*prepare) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+ int (*finalize) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+
+ int64_t (*get_size) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+
+ int (*can_write) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+ int (*can_flush) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+ int (*is_rotational) (struct nbdkit_next_ops *next_ops,
+ void *nxdata,
+ void *handle);
+ int (*can_trim) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+ int (*can_zero) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+ int (*can_extents) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+ int (*can_fua) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+ int (*can_multi_conn) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle);
+
+ int (*pread) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err);
+ int (*pwrite) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle,
+ const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err);
+ int (*flush) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t flags, int *err);
+ int (*trim) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset, uint32_t flags,
+ int *err);
+ int (*zero) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset, uint32_t flags,
+ int *err);
+ int (*extents) (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset, uint32_t flags,
+ struct nbdkit_extents *extents, int *err);
+};
+
+#define NBDKIT_REGISTER_FILTER(filter) \
+ NBDKIT_CXX_LANG_C \
+ struct nbdkit_filter * \
+ filter_init (void) \
+ { \
+ (filter)._api_version = NBDKIT_FILTER_API_VERSION; \
+ (filter)._thread_model = THREAD_MODEL; \
+ return &(filter); \
+ }
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* NBDKIT_FILTER_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* See nbdkit-plugin(3) for documentation and how to write a plugin. */
+
+#ifndef NBDKIT_PLUGIN_H
+#define NBDKIT_PLUGIN_H
+
+#include <nbdkit-common.h>
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+/* By default, a plugin gets API version 1; but you may request
+ * version 2 prior to including this header */
+#ifndef NBDKIT_API_VERSION
+#define NBDKIT_API_VERSION 1
+#elif (NBDKIT_API_VERSION - 0) < 1 || NBDKIT_API_VERSION > 2
+#error Unsupported API version
+#endif
+
+struct nbdkit_plugin {
+ /* Do not set these fields directly; use NBDKIT_REGISTER_PLUGIN.
+ * They exist so that we can support plugins compiled against
+ * one version of the header with a runtime compiled against a
+ * different version with more (or fewer) fields.
+ */
+ uint64_t _struct_size;
+ int _api_version;
+ int _thread_model;
+
+ /* Plugins are responsible for these fields; see the documentation
+ * for semantics, and which fields are optional. New fields will
+ * only be added at the end of the struct.
+ */
+ const char *name;
+ const char *longname;
+ const char *version;
+ const char *description;
+
+ void (*load) (void);
+ void (*unload) (void);
+
+ int (*config) (const char *key, const char *value);
+ int (*config_complete) (void);
+ const char *config_help;
+
+ void * (*open) (int readonly);
+ void (*close) (void *handle);
+
+ int64_t (*get_size) (void *handle);
+
+ int (*can_write) (void *handle);
+ int (*can_flush) (void *handle);
+ int (*is_rotational) (void *handle);
+ int (*can_trim) (void *handle);
+
+#if NBDKIT_API_VERSION == 1
+ int (*pread) (void *handle, void *buf, uint32_t count, uint64_t offset);
+ int (*pwrite) (void *handle, const void *buf, uint32_t count, uint64_t offset);
+ int (*flush) (void *handle);
+ int (*trim) (void *handle, uint32_t count, uint64_t offset);
+ int (*zero) (void *handle, uint32_t count, uint64_t offset, int may_trim);
+#else
+ int (*_pread_old) (void *, void *, uint32_t, uint64_t);
+ int (*_pwrite_old) (void *, const void *, uint32_t, uint64_t);
+ int (*_flush_old) (void *);
+ int (*_trim_old) (void *, uint32_t, uint64_t);
+ int (*_zero_old) (void *, uint32_t, uint64_t, int);
+#endif
+
+ int errno_is_preserved;
+
+ void (*dump_plugin) (void);
+
+ int (*can_zero) (void *handle);
+ int (*can_fua) (void *handle);
+#if NBDKIT_API_VERSION == 1
+ int (*_unused1) (void *, void *, uint32_t, uint64_t);
+ int (*_unused2) (void *, const void *, uint32_t, uint64_t, uint32_t);
+ int (*_unused3) (void *, uint32_t);
+ int (*_unused4) (void *, uint32_t, uint64_t, uint32_t);
+ int (*_unused5) (void *, uint32_t, uint64_t, uint32_t);
+#else
+ int (*pread) (void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags);
+ int (*pwrite) (void *handle, const void *buf, uint32_t count,
+ uint64_t offset, uint32_t flags);
+ int (*flush) (void *handle, uint32_t flags);
+ int (*trim) (void *handle, uint32_t count, uint64_t offset, uint32_t flags);
+ int (*zero) (void *handle, uint32_t count, uint64_t offset, uint32_t flags);
+#endif
+
+ const char *magic_config_key;
+
+ int (*can_multi_conn) (void *handle);
+
+ int (*can_extents) (void *handle);
+ int (*extents) (void *handle, uint32_t count, uint64_t offset, uint32_t flags,
+ struct nbdkit_extents *extents);
+};
+
+extern void nbdkit_set_error (int err);
+
+#define NBDKIT_REGISTER_PLUGIN(plugin) \
+ NBDKIT_CXX_LANG_C \
+ struct nbdkit_plugin * \
+ plugin_init (void) \
+ { \
+ (plugin)._struct_size = sizeof (plugin); \
+ (plugin)._api_version = NBDKIT_API_VERSION; \
+ (plugin)._thread_model = THREAD_MODEL; \
+ return &(plugin); \
+ }
+
+#ifdef __cplusplus
+}
+#endif
+
+#endif /* NBDKIT_PLUGIN_H */
--- /dev/null
+#!/bin/sh
+# install - install a program, script, or datafile
+
+scriptversion=2018-03-11.20; # UTC
+
+# This originates from X11R5 (mit/util/scripts/install.sh), which was
+# later released in X11R6 (xc/config/util/install.sh) with the
+# following copyright and license.
+#
+# Copyright (C) 1994 X Consortium
+#
+# Permission is hereby granted, free of charge, to any person obtaining a copy
+# of this software and associated documentation files (the "Software"), to
+# deal in the Software without restriction, including without limitation the
+# rights to use, copy, modify, merge, publish, distribute, sublicense, and/or
+# sell copies of the Software, and to permit persons to whom the Software is
+# furnished to do so, subject to the following conditions:
+#
+# The above copyright notice and this permission notice shall be included in
+# all copies or substantial portions of the Software.
+#
+# THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
+# IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
+# FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
+# X CONSORTIUM BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN
+# AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNEC-
+# TION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
+#
+# Except as contained in this notice, the name of the X Consortium shall not
+# be used in advertising or otherwise to promote the sale, use or other deal-
+# ings in this Software without prior written authorization from the X Consor-
+# tium.
+#
+#
+# FSF changes to this file are in the public domain.
+#
+# Calling this script install-sh is preferred over install.sh, to prevent
+# 'make' implicit rules from creating a file called install from it
+# when there is no Makefile.
+#
+# This script is compatible with the BSD install script, but was written
+# from scratch.
+
+tab=' '
+nl='
+'
+IFS=" $tab$nl"
+
+# Set DOITPROG to "echo" to test this script.
+
+doit=${DOITPROG-}
+doit_exec=${doit:-exec}
+
+# Put in absolute file names if you don't have them in your path;
+# or use environment vars.
+
+chgrpprog=${CHGRPPROG-chgrp}
+chmodprog=${CHMODPROG-chmod}
+chownprog=${CHOWNPROG-chown}
+cmpprog=${CMPPROG-cmp}
+cpprog=${CPPROG-cp}
+mkdirprog=${MKDIRPROG-mkdir}
+mvprog=${MVPROG-mv}
+rmprog=${RMPROG-rm}
+stripprog=${STRIPPROG-strip}
+
+posix_mkdir=
+
+# Desired mode of installed file.
+mode=0755
+
+chgrpcmd=
+chmodcmd=$chmodprog
+chowncmd=
+mvcmd=$mvprog
+rmcmd="$rmprog -f"
+stripcmd=
+
+src=
+dst=
+dir_arg=
+dst_arg=
+
+copy_on_change=false
+is_target_a_directory=possibly
+
+usage="\
+Usage: $0 [OPTION]... [-T] SRCFILE DSTFILE
+ or: $0 [OPTION]... SRCFILES... DIRECTORY
+ or: $0 [OPTION]... -t DIRECTORY SRCFILES...
+ or: $0 [OPTION]... -d DIRECTORIES...
+
+In the 1st form, copy SRCFILE to DSTFILE.
+In the 2nd and 3rd, copy all SRCFILES to DIRECTORY.
+In the 4th, create DIRECTORIES.
+
+Options:
+ --help display this help and exit.
+ --version display version info and exit.
+
+ -c (ignored)
+ -C install only if different (preserve the last data modification time)
+ -d create directories instead of installing files.
+ -g GROUP $chgrpprog installed files to GROUP.
+ -m MODE $chmodprog installed files to MODE.
+ -o USER $chownprog installed files to USER.
+ -s $stripprog installed files.
+ -t DIRECTORY install into DIRECTORY.
+ -T report an error if DSTFILE is a directory.
+
+Environment variables override the default commands:
+ CHGRPPROG CHMODPROG CHOWNPROG CMPPROG CPPROG MKDIRPROG MVPROG
+ RMPROG STRIPPROG
+"
+
+while test $# -ne 0; do
+ case $1 in
+ -c) ;;
+
+ -C) copy_on_change=true;;
+
+ -d) dir_arg=true;;
+
+ -g) chgrpcmd="$chgrpprog $2"
+ shift;;
+
+ --help) echo "$usage"; exit $?;;
+
+ -m) mode=$2
+ case $mode in
+ *' '* | *"$tab"* | *"$nl"* | *'*'* | *'?'* | *'['*)
+ echo "$0: invalid mode: $mode" >&2
+ exit 1;;
+ esac
+ shift;;
+
+ -o) chowncmd="$chownprog $2"
+ shift;;
+
+ -s) stripcmd=$stripprog;;
+
+ -t)
+ is_target_a_directory=always
+ dst_arg=$2
+ # Protect names problematic for 'test' and other utilities.
+ case $dst_arg in
+ -* | [=\(\)!]) dst_arg=./$dst_arg;;
+ esac
+ shift;;
+
+ -T) is_target_a_directory=never;;
+
+ --version) echo "$0 $scriptversion"; exit $?;;
+
+ --) shift
+ break;;
+
+ -*) echo "$0: invalid option: $1" >&2
+ exit 1;;
+
+ *) break;;
+ esac
+ shift
+done
+
+# We allow the use of options -d and -T together, by making -d
+# take the precedence; this is for compatibility with GNU install.
+
+if test -n "$dir_arg"; then
+ if test -n "$dst_arg"; then
+ echo "$0: target directory not allowed when installing a directory." >&2
+ exit 1
+ fi
+fi
+
+if test $# -ne 0 && test -z "$dir_arg$dst_arg"; then
+ # When -d is used, all remaining arguments are directories to create.
+ # When -t is used, the destination is already specified.
+ # Otherwise, the last argument is the destination. Remove it from $@.
+ for arg
+ do
+ if test -n "$dst_arg"; then
+ # $@ is not empty: it contains at least $arg.
+ set fnord "$@" "$dst_arg"
+ shift # fnord
+ fi
+ shift # arg
+ dst_arg=$arg
+ # Protect names problematic for 'test' and other utilities.
+ case $dst_arg in
+ -* | [=\(\)!]) dst_arg=./$dst_arg;;
+ esac
+ done
+fi
+
+if test $# -eq 0; then
+ if test -z "$dir_arg"; then
+ echo "$0: no input file specified." >&2
+ exit 1
+ fi
+ # It's OK to call 'install-sh -d' without argument.
+ # This can happen when creating conditional directories.
+ exit 0
+fi
+
+if test -z "$dir_arg"; then
+ if test $# -gt 1 || test "$is_target_a_directory" = always; then
+ if test ! -d "$dst_arg"; then
+ echo "$0: $dst_arg: Is not a directory." >&2
+ exit 1
+ fi
+ fi
+fi
+
+if test -z "$dir_arg"; then
+ do_exit='(exit $ret); exit $ret'
+ trap "ret=129; $do_exit" 1
+ trap "ret=130; $do_exit" 2
+ trap "ret=141; $do_exit" 13
+ trap "ret=143; $do_exit" 15
+
+ # Set umask so as not to create temps with too-generous modes.
+ # However, 'strip' requires both read and write access to temps.
+ case $mode in
+ # Optimize common cases.
+ *644) cp_umask=133;;
+ *755) cp_umask=22;;
+
+ *[0-7])
+ if test -z "$stripcmd"; then
+ u_plus_rw=
+ else
+ u_plus_rw='% 200'
+ fi
+ cp_umask=`expr '(' 777 - $mode % 1000 ')' $u_plus_rw`;;
+ *)
+ if test -z "$stripcmd"; then
+ u_plus_rw=
+ else
+ u_plus_rw=,u+rw
+ fi
+ cp_umask=$mode$u_plus_rw;;
+ esac
+fi
+
+for src
+do
+ # Protect names problematic for 'test' and other utilities.
+ case $src in
+ -* | [=\(\)!]) src=./$src;;
+ esac
+
+ if test -n "$dir_arg"; then
+ dst=$src
+ dstdir=$dst
+ test -d "$dstdir"
+ dstdir_status=$?
+ else
+
+ # Waiting for this to be detected by the "$cpprog $src $dsttmp" command
+ # might cause directories to be created, which would be especially bad
+ # if $src (and thus $dsttmp) contains '*'.
+ if test ! -f "$src" && test ! -d "$src"; then
+ echo "$0: $src does not exist." >&2
+ exit 1
+ fi
+
+ if test -z "$dst_arg"; then
+ echo "$0: no destination specified." >&2
+ exit 1
+ fi
+ dst=$dst_arg
+
+ # If destination is a directory, append the input filename.
+ if test -d "$dst"; then
+ if test "$is_target_a_directory" = never; then
+ echo "$0: $dst_arg: Is a directory" >&2
+ exit 1
+ fi
+ dstdir=$dst
+ dstbase=`basename "$src"`
+ case $dst in
+ */) dst=$dst$dstbase;;
+ *) dst=$dst/$dstbase;;
+ esac
+ dstdir_status=0
+ else
+ dstdir=`dirname "$dst"`
+ test -d "$dstdir"
+ dstdir_status=$?
+ fi
+ fi
+
+ case $dstdir in
+ */) dstdirslash=$dstdir;;
+ *) dstdirslash=$dstdir/;;
+ esac
+
+ obsolete_mkdir_used=false
+
+ if test $dstdir_status != 0; then
+ case $posix_mkdir in
+ '')
+ # Create intermediate dirs using mode 755 as modified by the umask.
+ # This is like FreeBSD 'install' as of 1997-10-28.
+ umask=`umask`
+ case $stripcmd.$umask in
+ # Optimize common cases.
+ *[2367][2367]) mkdir_umask=$umask;;
+ .*0[02][02] | .[02][02] | .[02]) mkdir_umask=22;;
+
+ *[0-7])
+ mkdir_umask=`expr $umask + 22 \
+ - $umask % 100 % 40 + $umask % 20 \
+ - $umask % 10 % 4 + $umask % 2
+ `;;
+ *) mkdir_umask=$umask,go-w;;
+ esac
+
+ # With -d, create the new directory with the user-specified mode.
+ # Otherwise, rely on $mkdir_umask.
+ if test -n "$dir_arg"; then
+ mkdir_mode=-m$mode
+ else
+ mkdir_mode=
+ fi
+
+ posix_mkdir=false
+ case $umask in
+ *[123567][0-7][0-7])
+ # POSIX mkdir -p sets u+wx bits regardless of umask, which
+ # is incompatible with FreeBSD 'install' when (umask & 300) != 0.
+ ;;
+ *)
+ # Note that $RANDOM variable is not portable (e.g. dash); Use it
+ # here however when possible just to lower collision chance.
+ tmpdir=${TMPDIR-/tmp}/ins$RANDOM-$$
+
+ trap 'ret=$?; rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir" 2>/dev/null; exit $ret' 0
+
+ # Because "mkdir -p" follows existing symlinks and we likely work
+ # directly in world-writeable /tmp, make sure that the '$tmpdir'
+ # directory is successfully created first before we actually test
+ # 'mkdir -p' feature.
+ if (umask $mkdir_umask &&
+ $mkdirprog $mkdir_mode "$tmpdir" &&
+ exec $mkdirprog $mkdir_mode -p -- "$tmpdir/a/b") >/dev/null 2>&1
+ then
+ if test -z "$dir_arg" || {
+ # Check for POSIX incompatibilities with -m.
+ # HP-UX 11.23 and IRIX 6.5 mkdir -m -p sets group- or
+ # other-writable bit of parent directory when it shouldn't.
+ # FreeBSD 6.1 mkdir -m -p sets mode of existing directory.
+ test_tmpdir="$tmpdir/a"
+ ls_ld_tmpdir=`ls -ld "$test_tmpdir"`
+ case $ls_ld_tmpdir in
+ d????-?r-*) different_mode=700;;
+ d????-?--*) different_mode=755;;
+ *) false;;
+ esac &&
+ $mkdirprog -m$different_mode -p -- "$test_tmpdir" && {
+ ls_ld_tmpdir_1=`ls -ld "$test_tmpdir"`
+ test "$ls_ld_tmpdir" = "$ls_ld_tmpdir_1"
+ }
+ }
+ then posix_mkdir=:
+ fi
+ rmdir "$tmpdir/a/b" "$tmpdir/a" "$tmpdir"
+ else
+ # Remove any dirs left behind by ancient mkdir implementations.
+ rmdir ./$mkdir_mode ./-p ./-- "$tmpdir" 2>/dev/null
+ fi
+ trap '' 0;;
+ esac;;
+ esac
+
+ if
+ $posix_mkdir && (
+ umask $mkdir_umask &&
+ $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir"
+ )
+ then :
+ else
+
+ # The umask is ridiculous, or mkdir does not conform to POSIX,
+ # or it failed possibly due to a race condition. Create the
+ # directory the slow way, step by step, checking for races as we go.
+
+ case $dstdir in
+ /*) prefix='/';;
+ [-=\(\)!]*) prefix='./';;
+ *) prefix='';;
+ esac
+
+ oIFS=$IFS
+ IFS=/
+ set -f
+ set fnord $dstdir
+ shift
+ set +f
+ IFS=$oIFS
+
+ prefixes=
+
+ for d
+ do
+ test X"$d" = X && continue
+
+ prefix=$prefix$d
+ if test -d "$prefix"; then
+ prefixes=
+ else
+ if $posix_mkdir; then
+ (umask=$mkdir_umask &&
+ $doit_exec $mkdirprog $mkdir_mode -p -- "$dstdir") && break
+ # Don't fail if two instances are running concurrently.
+ test -d "$prefix" || exit 1
+ else
+ case $prefix in
+ *\'*) qprefix=`echo "$prefix" | sed "s/'/'\\\\\\\\''/g"`;;
+ *) qprefix=$prefix;;
+ esac
+ prefixes="$prefixes '$qprefix'"
+ fi
+ fi
+ prefix=$prefix/
+ done
+
+ if test -n "$prefixes"; then
+ # Don't fail if two instances are running concurrently.
+ (umask $mkdir_umask &&
+ eval "\$doit_exec \$mkdirprog $prefixes") ||
+ test -d "$dstdir" || exit 1
+ obsolete_mkdir_used=true
+ fi
+ fi
+ fi
+
+ if test -n "$dir_arg"; then
+ { test -z "$chowncmd" || $doit $chowncmd "$dst"; } &&
+ { test -z "$chgrpcmd" || $doit $chgrpcmd "$dst"; } &&
+ { test "$obsolete_mkdir_used$chowncmd$chgrpcmd" = false ||
+ test -z "$chmodcmd" || $doit $chmodcmd $mode "$dst"; } || exit 1
+ else
+
+ # Make a couple of temp file names in the proper directory.
+ dsttmp=${dstdirslash}_inst.$$_
+ rmtmp=${dstdirslash}_rm.$$_
+
+ # Trap to clean up those temp files at exit.
+ trap 'ret=$?; rm -f "$dsttmp" "$rmtmp" && exit $ret' 0
+
+ # Copy the file name to the temp name.
+ (umask $cp_umask && $doit_exec $cpprog "$src" "$dsttmp") &&
+
+ # and set any options; do chmod last to preserve setuid bits.
+ #
+ # If any of these fail, we abort the whole thing. If we want to
+ # ignore errors from any of these, just make sure not to ignore
+ # errors from the above "$doit $cpprog $src $dsttmp" command.
+ #
+ { test -z "$chowncmd" || $doit $chowncmd "$dsttmp"; } &&
+ { test -z "$chgrpcmd" || $doit $chgrpcmd "$dsttmp"; } &&
+ { test -z "$stripcmd" || $doit $stripcmd "$dsttmp"; } &&
+ { test -z "$chmodcmd" || $doit $chmodcmd $mode "$dsttmp"; } &&
+
+ # If -C, don't bother to copy if it wouldn't change the file.
+ if $copy_on_change &&
+ old=`LC_ALL=C ls -dlL "$dst" 2>/dev/null` &&
+ new=`LC_ALL=C ls -dlL "$dsttmp" 2>/dev/null` &&
+ set -f &&
+ set X $old && old=:$2:$4:$5:$6 &&
+ set X $new && new=:$2:$4:$5:$6 &&
+ set +f &&
+ test "$old" = "$new" &&
+ $cmpprog "$dst" "$dsttmp" >/dev/null 2>&1
+ then
+ rm -f "$dsttmp"
+ else
+ # Rename the file to the real destination.
+ $doit $mvcmd -f "$dsttmp" "$dst" 2>/dev/null ||
+
+ # The rename failed, perhaps because mv can't rename something else
+ # to itself, or perhaps because mv is so ancient that it does not
+ # support -f.
+ {
+ # Now remove or move aside any old file at destination location.
+ # We try this two ways since rm can't unlink itself on some
+ # systems and the destination file might be busy for other
+ # reasons. In this case, the final cleanup might fail but the new
+ # file should still install successfully.
+ {
+ test ! -f "$dst" ||
+ $doit $rmcmd -f "$dst" 2>/dev/null ||
+ { $doit $mvcmd -f "$dst" "$rmtmp" 2>/dev/null &&
+ { $doit $rmcmd -f "$rmtmp" 2>/dev/null; :; }
+ } ||
+ { echo "$0: cannot unlink or rename $dst" >&2
+ (exit 1); exit 1
+ }
+ } &&
+
+ # Now rename the file to the real destination.
+ $doit $mvcmd "$dsttmp" "$dst"
+ }
+ fi || exit 1
+
+ trap '' 0
+ fi
+done
+
+# Local variables:
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
--- /dev/null
+#! /bin/sh
+## DO NOT EDIT - This file generated from ./build-aux/ltmain.in
+## by inline-source v2014-01-03.01
+
+# libtool (GNU libtool) 2.4.6
+# Provide generalized library-building support services.
+# Written by Gordon Matzigkeit <gord@gnu.ai.mit.edu>, 1996
+
+# Copyright (C) 1996-2015 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions. There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# GNU Libtool is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of the License, or
+# (at your option) any later version.
+#
+# As a special exception to the GNU General Public License,
+# if you distribute this file as part of a program or library that
+# is built using GNU Libtool, you may include this file under the
+# same distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+
+PROGRAM=libtool
+PACKAGE=libtool
+VERSION=2.4.6
+package_revision=2.4.6
+
+
+## ------ ##
+## Usage. ##
+## ------ ##
+
+# Run './libtool --help' for help with using this script from the
+# command line.
+
+
+## ------------------------------- ##
+## User overridable command paths. ##
+## ------------------------------- ##
+
+# After configure completes, it has a better idea of some of the
+# shell tools we need than the defaults used by the functions shared
+# with bootstrap, so set those here where they can still be over-
+# ridden by the user, but otherwise take precedence.
+
+: ${AUTOCONF="autoconf"}
+: ${AUTOMAKE="automake"}
+
+
+## -------------------------- ##
+## Source external libraries. ##
+## -------------------------- ##
+
+# Much of our low-level functionality needs to be sourced from external
+# libraries, which are installed to $pkgauxdir.
+
+# Set a version string for this script.
+scriptversion=2015-01-20.17; # UTC
+
+# General shell script boiler plate, and helper functions.
+# Written by Gary V. Vaughan, 2004
+
+# Copyright (C) 2004-2015 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions. There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 3 of the License, or
+# (at your option) any later version.
+
+# As a special exception to the GNU General Public License, if you distribute
+# this file as part of a program or library that is built using GNU Libtool,
+# you may include this file under the same distribution terms that you use
+# for the rest of that program.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNES FOR A PARTICULAR PURPOSE. See the GNU
+# General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# Please report bugs or propose patches to gary@gnu.org.
+
+
+## ------ ##
+## Usage. ##
+## ------ ##
+
+# Evaluate this file near the top of your script to gain access to
+# the functions and variables defined here:
+#
+# . `echo "$0" | ${SED-sed} 's|[^/]*$||'`/build-aux/funclib.sh
+#
+# If you need to override any of the default environment variable
+# settings, do that before evaluating this file.
+
+
+## -------------------- ##
+## Shell normalisation. ##
+## -------------------- ##
+
+# Some shells need a little help to be as Bourne compatible as possible.
+# Before doing anything else, make sure all that help has been provided!
+
+DUALCASE=1; export DUALCASE # for MKS sh
+if test -n "${ZSH_VERSION+set}" && (emulate sh) >/dev/null 2>&1; then :
+ emulate sh
+ NULLCMD=:
+ # Pre-4.2 versions of Zsh do word splitting on ${1+"$@"}, which
+ # is contrary to our usage. Disable this feature.
+ alias -g '${1+"$@"}'='"$@"'
+ setopt NO_GLOB_SUBST
+else
+ case `(set -o) 2>/dev/null` in *posix*) set -o posix ;; esac
+fi
+
+# NLS nuisances: We save the old values in case they are required later.
+_G_user_locale=
+_G_safe_locale=
+for _G_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
+do
+ eval "if test set = \"\${$_G_var+set}\"; then
+ save_$_G_var=\$$_G_var
+ $_G_var=C
+ export $_G_var
+ _G_user_locale=\"$_G_var=\\\$save_\$_G_var; \$_G_user_locale\"
+ _G_safe_locale=\"$_G_var=C; \$_G_safe_locale\"
+ fi"
+done
+
+# CDPATH.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+# Make sure IFS has a sensible default
+sp=' '
+nl='
+'
+IFS="$sp $nl"
+
+# There are apparently some retarded systems that use ';' as a PATH separator!
+if test "${PATH_SEPARATOR+set}" != set; then
+ PATH_SEPARATOR=:
+ (PATH='/bin;/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 && {
+ (PATH='/bin:/bin'; FPATH=$PATH; sh -c :) >/dev/null 2>&1 ||
+ PATH_SEPARATOR=';'
+ }
+fi
+
+
+
+## ------------------------- ##
+## Locate command utilities. ##
+## ------------------------- ##
+
+
+# func_executable_p FILE
+# ----------------------
+# Check that FILE is an executable regular file.
+func_executable_p ()
+{
+ test -f "$1" && test -x "$1"
+}
+
+
+# func_path_progs PROGS_LIST CHECK_FUNC [PATH]
+# --------------------------------------------
+# Search for either a program that responds to --version with output
+# containing "GNU", or else returned by CHECK_FUNC otherwise, by
+# trying all the directories in PATH with each of the elements of
+# PROGS_LIST.
+#
+# CHECK_FUNC should accept the path to a candidate program, and
+# set $func_check_prog_result if it truncates its output less than
+# $_G_path_prog_max characters.
+func_path_progs ()
+{
+ _G_progs_list=$1
+ _G_check_func=$2
+ _G_PATH=${3-"$PATH"}
+
+ _G_path_prog_max=0
+ _G_path_prog_found=false
+ _G_save_IFS=$IFS; IFS=${PATH_SEPARATOR-:}
+ for _G_dir in $_G_PATH; do
+ IFS=$_G_save_IFS
+ test -z "$_G_dir" && _G_dir=.
+ for _G_prog_name in $_G_progs_list; do
+ for _exeext in '' .EXE; do
+ _G_path_prog=$_G_dir/$_G_prog_name$_exeext
+ func_executable_p "$_G_path_prog" || continue
+ case `"$_G_path_prog" --version 2>&1` in
+ *GNU*) func_path_progs_result=$_G_path_prog _G_path_prog_found=: ;;
+ *) $_G_check_func $_G_path_prog
+ func_path_progs_result=$func_check_prog_result
+ ;;
+ esac
+ $_G_path_prog_found && break 3
+ done
+ done
+ done
+ IFS=$_G_save_IFS
+ test -z "$func_path_progs_result" && {
+ echo "no acceptable sed could be found in \$PATH" >&2
+ exit 1
+ }
+}
+
+
+# We want to be able to use the functions in this file before configure
+# has figured out where the best binaries are kept, which means we have
+# to search for them ourselves - except when the results are already set
+# where we skip the searches.
+
+# Unless the user overrides by setting SED, search the path for either GNU
+# sed, or the sed that truncates its output the least.
+test -z "$SED" && {
+ _G_sed_script=s/aaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaaa/bbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbbb/
+ for _G_i in 1 2 3 4 5 6 7; do
+ _G_sed_script=$_G_sed_script$nl$_G_sed_script
+ done
+ echo "$_G_sed_script" 2>/dev/null | sed 99q >conftest.sed
+ _G_sed_script=
+
+ func_check_prog_sed ()
+ {
+ _G_path_prog=$1
+
+ _G_count=0
+ printf 0123456789 >conftest.in
+ while :
+ do
+ cat conftest.in conftest.in >conftest.tmp
+ mv conftest.tmp conftest.in
+ cp conftest.in conftest.nl
+ echo '' >> conftest.nl
+ "$_G_path_prog" -f conftest.sed <conftest.nl >conftest.out 2>/dev/null || break
+ diff conftest.out conftest.nl >/dev/null 2>&1 || break
+ _G_count=`expr $_G_count + 1`
+ if test "$_G_count" -gt "$_G_path_prog_max"; then
+ # Best one so far, save it but keep looking for a better one
+ func_check_prog_result=$_G_path_prog
+ _G_path_prog_max=$_G_count
+ fi
+ # 10*(2^10) chars as input seems more than enough
+ test 10 -lt "$_G_count" && break
+ done
+ rm -f conftest.in conftest.tmp conftest.nl conftest.out
+ }
+
+ func_path_progs "sed gsed" func_check_prog_sed $PATH:/usr/xpg4/bin
+ rm -f conftest.sed
+ SED=$func_path_progs_result
+}
+
+
+# Unless the user overrides by setting GREP, search the path for either GNU
+# grep, or the grep that truncates its output the least.
+test -z "$GREP" && {
+ func_check_prog_grep ()
+ {
+ _G_path_prog=$1
+
+ _G_count=0
+ _G_path_prog_max=0
+ printf 0123456789 >conftest.in
+ while :
+ do
+ cat conftest.in conftest.in >conftest.tmp
+ mv conftest.tmp conftest.in
+ cp conftest.in conftest.nl
+ echo 'GREP' >> conftest.nl
+ "$_G_path_prog" -e 'GREP$' -e '-(cannot match)-' <conftest.nl >conftest.out 2>/dev/null || break
+ diff conftest.out conftest.nl >/dev/null 2>&1 || break
+ _G_count=`expr $_G_count + 1`
+ if test "$_G_count" -gt "$_G_path_prog_max"; then
+ # Best one so far, save it but keep looking for a better one
+ func_check_prog_result=$_G_path_prog
+ _G_path_prog_max=$_G_count
+ fi
+ # 10*(2^10) chars as input seems more than enough
+ test 10 -lt "$_G_count" && break
+ done
+ rm -f conftest.in conftest.tmp conftest.nl conftest.out
+ }
+
+ func_path_progs "grep ggrep" func_check_prog_grep $PATH:/usr/xpg4/bin
+ GREP=$func_path_progs_result
+}
+
+
+## ------------------------------- ##
+## User overridable command paths. ##
+## ------------------------------- ##
+
+# All uppercase variable names are used for environment variables. These
+# variables can be overridden by the user before calling a script that
+# uses them if a suitable command of that name is not already available
+# in the command search PATH.
+
+: ${CP="cp -f"}
+: ${ECHO="printf %s\n"}
+: ${EGREP="$GREP -E"}
+: ${FGREP="$GREP -F"}
+: ${LN_S="ln -s"}
+: ${MAKE="make"}
+: ${MKDIR="mkdir"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+: ${SHELL="${CONFIG_SHELL-/bin/sh}"}
+
+
+## -------------------- ##
+## Useful sed snippets. ##
+## -------------------- ##
+
+sed_dirname='s|/[^/]*$||'
+sed_basename='s|^.*/||'
+
+# Sed substitution that helps us do robust quoting. It backslashifies
+# metacharacters that are still active within double-quoted strings.
+sed_quote_subst='s|\([`"$\\]\)|\\\1|g'
+
+# Same as above, but do not quote variable references.
+sed_double_quote_subst='s/\(["`\\]\)/\\\1/g'
+
+# Sed substitution that turns a string into a regex matching for the
+# string literally.
+sed_make_literal_regex='s|[].[^$\\*\/]|\\&|g'
+
+# Sed substitution that converts a w32 file name or path
+# that contains forward slashes, into one that contains
+# (escaped) backslashes. A very naive implementation.
+sed_naive_backslashify='s|\\\\*|\\|g;s|/|\\|g;s|\\|\\\\|g'
+
+# Re-'\' parameter expansions in output of sed_double_quote_subst that
+# were '\'-ed in input to the same. If an odd number of '\' preceded a
+# '$' in input to sed_double_quote_subst, that '$' was protected from
+# expansion. Since each input '\' is now two '\'s, look for any number
+# of runs of four '\'s followed by two '\'s and then a '$'. '\' that '$'.
+_G_bs='\\'
+_G_bs2='\\\\'
+_G_bs4='\\\\\\\\'
+_G_dollar='\$'
+sed_double_backslash="\
+ s/$_G_bs4/&\\
+/g
+ s/^$_G_bs2$_G_dollar/$_G_bs&/
+ s/\\([^$_G_bs]\\)$_G_bs2$_G_dollar/\\1$_G_bs2$_G_bs$_G_dollar/g
+ s/\n//g"
+
+
+## ----------------- ##
+## Global variables. ##
+## ----------------- ##
+
+# Except for the global variables explicitly listed below, the following
+# functions in the '^func_' namespace, and the '^require_' namespace
+# variables initialised in the 'Resource management' section, sourcing
+# this file will not pollute your global namespace with anything
+# else. There's no portable way to scope variables in Bourne shell
+# though, so actually running these functions will sometimes place
+# results into a variable named after the function, and often use
+# temporary variables in the '^_G_' namespace. If you are careful to
+# avoid using those namespaces casually in your sourcing script, things
+# should continue to work as you expect. And, of course, you can freely
+# overwrite any of the functions or variables defined here before
+# calling anything to customize them.
+
+EXIT_SUCCESS=0
+EXIT_FAILURE=1
+EXIT_MISMATCH=63 # $? = 63 is used to indicate version mismatch to missing.
+EXIT_SKIP=77 # $? = 77 is used to indicate a skipped test to automake.
+
+# Allow overriding, eg assuming that you follow the convention of
+# putting '$debug_cmd' at the start of all your functions, you can get
+# bash to show function call trace with:
+#
+# debug_cmd='eval echo "${FUNCNAME[0]} $*" >&2' bash your-script-name
+debug_cmd=${debug_cmd-":"}
+exit_cmd=:
+
+# By convention, finish your script with:
+#
+# exit $exit_status
+#
+# so that you can set exit_status to non-zero if you want to indicate
+# something went wrong during execution without actually bailing out at
+# the point of failure.
+exit_status=$EXIT_SUCCESS
+
+# Work around backward compatibility issue on IRIX 6.5. On IRIX 6.4+, sh
+# is ksh but when the shell is invoked as "sh" and the current value of
+# the _XPG environment variable is not equal to 1 (one), the special
+# positional parameter $0, within a function call, is the name of the
+# function.
+progpath=$0
+
+# The name of this program.
+progname=`$ECHO "$progpath" |$SED "$sed_basename"`
+
+# Make sure we have an absolute progpath for reexecution:
+case $progpath in
+ [\\/]*|[A-Za-z]:\\*) ;;
+ *[\\/]*)
+ progdir=`$ECHO "$progpath" |$SED "$sed_dirname"`
+ progdir=`cd "$progdir" && pwd`
+ progpath=$progdir/$progname
+ ;;
+ *)
+ _G_IFS=$IFS
+ IFS=${PATH_SEPARATOR-:}
+ for progdir in $PATH; do
+ IFS=$_G_IFS
+ test -x "$progdir/$progname" && break
+ done
+ IFS=$_G_IFS
+ test -n "$progdir" || progdir=`pwd`
+ progpath=$progdir/$progname
+ ;;
+esac
+
+
+## ----------------- ##
+## Standard options. ##
+## ----------------- ##
+
+# The following options affect the operation of the functions defined
+# below, and should be set appropriately depending on run-time para-
+# meters passed on the command line.
+
+opt_dry_run=false
+opt_quiet=false
+opt_verbose=false
+
+# Categories 'all' and 'none' are always available. Append any others
+# you will pass as the first argument to func_warning from your own
+# code.
+warning_categories=
+
+# By default, display warnings according to 'opt_warning_types'. Set
+# 'warning_func' to ':' to elide all warnings, or func_fatal_error to
+# treat the next displayed warning as a fatal error.
+warning_func=func_warn_and_continue
+
+# Set to 'all' to display all warnings, 'none' to suppress all
+# warnings, or a space delimited list of some subset of
+# 'warning_categories' to display only the listed warnings.
+opt_warning_types=all
+
+
+## -------------------- ##
+## Resource management. ##
+## -------------------- ##
+
+# This section contains definitions for functions that each ensure a
+# particular resource (a file, or a non-empty configuration variable for
+# example) is available, and if appropriate to extract default values
+# from pertinent package files. Call them using their associated
+# 'require_*' variable to ensure that they are executed, at most, once.
+#
+# It's entirely deliberate that calling these functions can set
+# variables that don't obey the namespace limitations obeyed by the rest
+# of this file, in order that that they be as useful as possible to
+# callers.
+
+
+# require_term_colors
+# -------------------
+# Allow display of bold text on terminals that support it.
+require_term_colors=func_require_term_colors
+func_require_term_colors ()
+{
+ $debug_cmd
+
+ test -t 1 && {
+ # COLORTERM and USE_ANSI_COLORS environment variables take
+ # precedence, because most terminfo databases neglect to describe
+ # whether color sequences are supported.
+ test -n "${COLORTERM+set}" && : ${USE_ANSI_COLORS="1"}
+
+ if test 1 = "$USE_ANSI_COLORS"; then
+ # Standard ANSI escape sequences
+ tc_reset='\e[0m'
+ tc_bold='\e[1m'; tc_standout='\e[7m'
+ tc_red='\e[31m'; tc_green='\e[32m'
+ tc_blue='\e[34m'; tc_cyan='\e[36m'
+ else
+ # Otherwise trust the terminfo database after all.
+ test -n "`tput sgr0 2>/dev/null`" && {
+ tc_reset=`tput sgr0`
+ test -n "`tput bold 2>/dev/null`" && tc_bold=`tput bold`
+ tc_standout=$tc_bold
+ test -n "`tput smso 2>/dev/null`" && tc_standout=`tput smso`
+ test -n "`tput setaf 1 2>/dev/null`" && tc_red=`tput setaf 1`
+ test -n "`tput setaf 2 2>/dev/null`" && tc_green=`tput setaf 2`
+ test -n "`tput setaf 4 2>/dev/null`" && tc_blue=`tput setaf 4`
+ test -n "`tput setaf 5 2>/dev/null`" && tc_cyan=`tput setaf 5`
+ }
+ fi
+ }
+
+ require_term_colors=:
+}
+
+
+## ----------------- ##
+## Function library. ##
+## ----------------- ##
+
+# This section contains a variety of useful functions to call in your
+# scripts. Take note of the portable wrappers for features provided by
+# some modern shells, which will fall back to slower equivalents on
+# less featureful shells.
+
+
+# func_append VAR VALUE
+# ---------------------
+# Append VALUE onto the existing contents of VAR.
+
+ # We should try to minimise forks, especially on Windows where they are
+ # unreasonably slow, so skip the feature probes when bash or zsh are
+ # being used:
+ if test set = "${BASH_VERSION+set}${ZSH_VERSION+set}"; then
+ : ${_G_HAVE_ARITH_OP="yes"}
+ : ${_G_HAVE_XSI_OPS="yes"}
+ # The += operator was introduced in bash 3.1
+ case $BASH_VERSION in
+ [12].* | 3.0 | 3.0*) ;;
+ *)
+ : ${_G_HAVE_PLUSEQ_OP="yes"}
+ ;;
+ esac
+ fi
+
+ # _G_HAVE_PLUSEQ_OP
+ # Can be empty, in which case the shell is probed, "yes" if += is
+ # useable or anything else if it does not work.
+ test -z "$_G_HAVE_PLUSEQ_OP" \
+ && (eval 'x=a; x+=" b"; test "a b" = "$x"') 2>/dev/null \
+ && _G_HAVE_PLUSEQ_OP=yes
+
+if test yes = "$_G_HAVE_PLUSEQ_OP"
+then
+ # This is an XSI compatible shell, allowing a faster implementation...
+ eval 'func_append ()
+ {
+ $debug_cmd
+
+ eval "$1+=\$2"
+ }'
+else
+ # ...otherwise fall back to using expr, which is often a shell builtin.
+ func_append ()
+ {
+ $debug_cmd
+
+ eval "$1=\$$1\$2"
+ }
+fi
+
+
+# func_append_quoted VAR VALUE
+# ----------------------------
+# Quote VALUE and append to the end of shell variable VAR, separated
+# by a space.
+if test yes = "$_G_HAVE_PLUSEQ_OP"; then
+ eval 'func_append_quoted ()
+ {
+ $debug_cmd
+
+ func_quote_for_eval "$2"
+ eval "$1+=\\ \$func_quote_for_eval_result"
+ }'
+else
+ func_append_quoted ()
+ {
+ $debug_cmd
+
+ func_quote_for_eval "$2"
+ eval "$1=\$$1\\ \$func_quote_for_eval_result"
+ }
+fi
+
+
+# func_append_uniq VAR VALUE
+# --------------------------
+# Append unique VALUE onto the existing contents of VAR, assuming
+# entries are delimited by the first character of VALUE. For example:
+#
+# func_append_uniq options " --another-option option-argument"
+#
+# will only append to $options if " --another-option option-argument "
+# is not already present somewhere in $options already (note spaces at
+# each end implied by leading space in second argument).
+func_append_uniq ()
+{
+ $debug_cmd
+
+ eval _G_current_value='`$ECHO $'$1'`'
+ _G_delim=`expr "$2" : '\(.\)'`
+
+ case $_G_delim$_G_current_value$_G_delim in
+ *"$2$_G_delim"*) ;;
+ *) func_append "$@" ;;
+ esac
+}
+
+
+# func_arith TERM...
+# ------------------
+# Set func_arith_result to the result of evaluating TERMs.
+ test -z "$_G_HAVE_ARITH_OP" \
+ && (eval 'test 2 = $(( 1 + 1 ))') 2>/dev/null \
+ && _G_HAVE_ARITH_OP=yes
+
+if test yes = "$_G_HAVE_ARITH_OP"; then
+ eval 'func_arith ()
+ {
+ $debug_cmd
+
+ func_arith_result=$(( $* ))
+ }'
+else
+ func_arith ()
+ {
+ $debug_cmd
+
+ func_arith_result=`expr "$@"`
+ }
+fi
+
+
+# func_basename FILE
+# ------------------
+# Set func_basename_result to FILE with everything up to and including
+# the last / stripped.
+if test yes = "$_G_HAVE_XSI_OPS"; then
+ # If this shell supports suffix pattern removal, then use it to avoid
+ # forking. Hide the definitions single quotes in case the shell chokes
+ # on unsupported syntax...
+ _b='func_basename_result=${1##*/}'
+ _d='case $1 in
+ */*) func_dirname_result=${1%/*}$2 ;;
+ * ) func_dirname_result=$3 ;;
+ esac'
+
+else
+ # ...otherwise fall back to using sed.
+ _b='func_basename_result=`$ECHO "$1" |$SED "$sed_basename"`'
+ _d='func_dirname_result=`$ECHO "$1" |$SED "$sed_dirname"`
+ if test "X$func_dirname_result" = "X$1"; then
+ func_dirname_result=$3
+ else
+ func_append func_dirname_result "$2"
+ fi'
+fi
+
+eval 'func_basename ()
+{
+ $debug_cmd
+
+ '"$_b"'
+}'
+
+
+# func_dirname FILE APPEND NONDIR_REPLACEMENT
+# -------------------------------------------
+# Compute the dirname of FILE. If nonempty, add APPEND to the result,
+# otherwise set result to NONDIR_REPLACEMENT.
+eval 'func_dirname ()
+{
+ $debug_cmd
+
+ '"$_d"'
+}'
+
+
+# func_dirname_and_basename FILE APPEND NONDIR_REPLACEMENT
+# --------------------------------------------------------
+# Perform func_basename and func_dirname in a single function
+# call:
+# dirname: Compute the dirname of FILE. If nonempty,
+# add APPEND to the result, otherwise set result
+# to NONDIR_REPLACEMENT.
+# value returned in "$func_dirname_result"
+# basename: Compute filename of FILE.
+# value retuned in "$func_basename_result"
+# For efficiency, we do not delegate to the functions above but instead
+# duplicate the functionality here.
+eval 'func_dirname_and_basename ()
+{
+ $debug_cmd
+
+ '"$_b"'
+ '"$_d"'
+}'
+
+
+# func_echo ARG...
+# ----------------
+# Echo program name prefixed message.
+func_echo ()
+{
+ $debug_cmd
+
+ _G_message=$*
+
+ func_echo_IFS=$IFS
+ IFS=$nl
+ for _G_line in $_G_message; do
+ IFS=$func_echo_IFS
+ $ECHO "$progname: $_G_line"
+ done
+ IFS=$func_echo_IFS
+}
+
+
+# func_echo_all ARG...
+# --------------------
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+ $ECHO "$*"
+}
+
+
+# func_echo_infix_1 INFIX ARG...
+# ------------------------------
+# Echo program name, followed by INFIX on the first line, with any
+# additional lines not showing INFIX.
+func_echo_infix_1 ()
+{
+ $debug_cmd
+
+ $require_term_colors
+
+ _G_infix=$1; shift
+ _G_indent=$_G_infix
+ _G_prefix="$progname: $_G_infix: "
+ _G_message=$*
+
+ # Strip color escape sequences before counting printable length
+ for _G_tc in "$tc_reset" "$tc_bold" "$tc_standout" "$tc_red" "$tc_green" "$tc_blue" "$tc_cyan"
+ do
+ test -n "$_G_tc" && {
+ _G_esc_tc=`$ECHO "$_G_tc" | $SED "$sed_make_literal_regex"`
+ _G_indent=`$ECHO "$_G_indent" | $SED "s|$_G_esc_tc||g"`
+ }
+ done
+ _G_indent="$progname: "`echo "$_G_indent" | $SED 's|.| |g'`" " ## exclude from sc_prohibit_nested_quotes
+
+ func_echo_infix_1_IFS=$IFS
+ IFS=$nl
+ for _G_line in $_G_message; do
+ IFS=$func_echo_infix_1_IFS
+ $ECHO "$_G_prefix$tc_bold$_G_line$tc_reset" >&2
+ _G_prefix=$_G_indent
+ done
+ IFS=$func_echo_infix_1_IFS
+}
+
+
+# func_error ARG...
+# -----------------
+# Echo program name prefixed message to standard error.
+func_error ()
+{
+ $debug_cmd
+
+ $require_term_colors
+
+ func_echo_infix_1 " $tc_standout${tc_red}error$tc_reset" "$*" >&2
+}
+
+
+# func_fatal_error ARG...
+# -----------------------
+# Echo program name prefixed message to standard error, and exit.
+func_fatal_error ()
+{
+ $debug_cmd
+
+ func_error "$*"
+ exit $EXIT_FAILURE
+}
+
+
+# func_grep EXPRESSION FILENAME
+# -----------------------------
+# Check whether EXPRESSION matches any line of FILENAME, without output.
+func_grep ()
+{
+ $debug_cmd
+
+ $GREP "$1" "$2" >/dev/null 2>&1
+}
+
+
+# func_len STRING
+# ---------------
+# Set func_len_result to the length of STRING. STRING may not
+# start with a hyphen.
+ test -z "$_G_HAVE_XSI_OPS" \
+ && (eval 'x=a/b/c;
+ test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
+ && _G_HAVE_XSI_OPS=yes
+
+if test yes = "$_G_HAVE_XSI_OPS"; then
+ eval 'func_len ()
+ {
+ $debug_cmd
+
+ func_len_result=${#1}
+ }'
+else
+ func_len ()
+ {
+ $debug_cmd
+
+ func_len_result=`expr "$1" : ".*" 2>/dev/null || echo $max_cmd_len`
+ }
+fi
+
+
+# func_mkdir_p DIRECTORY-PATH
+# ---------------------------
+# Make sure the entire path to DIRECTORY-PATH is available.
+func_mkdir_p ()
+{
+ $debug_cmd
+
+ _G_directory_path=$1
+ _G_dir_list=
+
+ if test -n "$_G_directory_path" && test : != "$opt_dry_run"; then
+
+ # Protect directory names starting with '-'
+ case $_G_directory_path in
+ -*) _G_directory_path=./$_G_directory_path ;;
+ esac
+
+ # While some portion of DIR does not yet exist...
+ while test ! -d "$_G_directory_path"; do
+ # ...make a list in topmost first order. Use a colon delimited
+ # list incase some portion of path contains whitespace.
+ _G_dir_list=$_G_directory_path:$_G_dir_list
+
+ # If the last portion added has no slash in it, the list is done
+ case $_G_directory_path in */*) ;; *) break ;; esac
+
+ # ...otherwise throw away the child directory and loop
+ _G_directory_path=`$ECHO "$_G_directory_path" | $SED -e "$sed_dirname"`
+ done
+ _G_dir_list=`$ECHO "$_G_dir_list" | $SED 's|:*$||'`
+
+ func_mkdir_p_IFS=$IFS; IFS=:
+ for _G_dir in $_G_dir_list; do
+ IFS=$func_mkdir_p_IFS
+ # mkdir can fail with a 'File exist' error if two processes
+ # try to create one of the directories concurrently. Don't
+ # stop in that case!
+ $MKDIR "$_G_dir" 2>/dev/null || :
+ done
+ IFS=$func_mkdir_p_IFS
+
+ # Bail out if we (or some other process) failed to create a directory.
+ test -d "$_G_directory_path" || \
+ func_fatal_error "Failed to create '$1'"
+ fi
+}
+
+
+# func_mktempdir [BASENAME]
+# -------------------------
+# Make a temporary directory that won't clash with other running
+# libtool processes, and avoids race conditions if possible. If
+# given, BASENAME is the basename for that directory.
+func_mktempdir ()
+{
+ $debug_cmd
+
+ _G_template=${TMPDIR-/tmp}/${1-$progname}
+
+ if test : = "$opt_dry_run"; then
+ # Return a directory name, but don't create it in dry-run mode
+ _G_tmpdir=$_G_template-$$
+ else
+
+ # If mktemp works, use that first and foremost
+ _G_tmpdir=`mktemp -d "$_G_template-XXXXXXXX" 2>/dev/null`
+
+ if test ! -d "$_G_tmpdir"; then
+ # Failing that, at least try and use $RANDOM to avoid a race
+ _G_tmpdir=$_G_template-${RANDOM-0}$$
+
+ func_mktempdir_umask=`umask`
+ umask 0077
+ $MKDIR "$_G_tmpdir"
+ umask $func_mktempdir_umask
+ fi
+
+ # If we're not in dry-run mode, bomb out on failure
+ test -d "$_G_tmpdir" || \
+ func_fatal_error "cannot create temporary directory '$_G_tmpdir'"
+ fi
+
+ $ECHO "$_G_tmpdir"
+}
+
+
+# func_normal_abspath PATH
+# ------------------------
+# Remove doubled-up and trailing slashes, "." path components,
+# and cancel out any ".." path components in PATH after making
+# it an absolute path.
+func_normal_abspath ()
+{
+ $debug_cmd
+
+ # These SED scripts presuppose an absolute path with a trailing slash.
+ _G_pathcar='s|^/\([^/]*\).*$|\1|'
+ _G_pathcdr='s|^/[^/]*||'
+ _G_removedotparts=':dotsl
+ s|/\./|/|g
+ t dotsl
+ s|/\.$|/|'
+ _G_collapseslashes='s|/\{1,\}|/|g'
+ _G_finalslash='s|/*$|/|'
+
+ # Start from root dir and reassemble the path.
+ func_normal_abspath_result=
+ func_normal_abspath_tpath=$1
+ func_normal_abspath_altnamespace=
+ case $func_normal_abspath_tpath in
+ "")
+ # Empty path, that just means $cwd.
+ func_stripname '' '/' "`pwd`"
+ func_normal_abspath_result=$func_stripname_result
+ return
+ ;;
+ # The next three entries are used to spot a run of precisely
+ # two leading slashes without using negated character classes;
+ # we take advantage of case's first-match behaviour.
+ ///*)
+ # Unusual form of absolute path, do nothing.
+ ;;
+ //*)
+ # Not necessarily an ordinary path; POSIX reserves leading '//'
+ # and for example Cygwin uses it to access remote file shares
+ # over CIFS/SMB, so we conserve a leading double slash if found.
+ func_normal_abspath_altnamespace=/
+ ;;
+ /*)
+ # Absolute path, do nothing.
+ ;;
+ *)
+ # Relative path, prepend $cwd.
+ func_normal_abspath_tpath=`pwd`/$func_normal_abspath_tpath
+ ;;
+ esac
+
+ # Cancel out all the simple stuff to save iterations. We also want
+ # the path to end with a slash for ease of parsing, so make sure
+ # there is one (and only one) here.
+ func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+ -e "$_G_removedotparts" -e "$_G_collapseslashes" -e "$_G_finalslash"`
+ while :; do
+ # Processed it all yet?
+ if test / = "$func_normal_abspath_tpath"; then
+ # If we ascended to the root using ".." the result may be empty now.
+ if test -z "$func_normal_abspath_result"; then
+ func_normal_abspath_result=/
+ fi
+ break
+ fi
+ func_normal_abspath_tcomponent=`$ECHO "$func_normal_abspath_tpath" | $SED \
+ -e "$_G_pathcar"`
+ func_normal_abspath_tpath=`$ECHO "$func_normal_abspath_tpath" | $SED \
+ -e "$_G_pathcdr"`
+ # Figure out what to do with it
+ case $func_normal_abspath_tcomponent in
+ "")
+ # Trailing empty path component, ignore it.
+ ;;
+ ..)
+ # Parent dir; strip last assembled component from result.
+ func_dirname "$func_normal_abspath_result"
+ func_normal_abspath_result=$func_dirname_result
+ ;;
+ *)
+ # Actual path component, append it.
+ func_append func_normal_abspath_result "/$func_normal_abspath_tcomponent"
+ ;;
+ esac
+ done
+ # Restore leading double-slash if one was found on entry.
+ func_normal_abspath_result=$func_normal_abspath_altnamespace$func_normal_abspath_result
+}
+
+
+# func_notquiet ARG...
+# --------------------
+# Echo program name prefixed message only when not in quiet mode.
+func_notquiet ()
+{
+ $debug_cmd
+
+ $opt_quiet || func_echo ${1+"$@"}
+
+ # A bug in bash halts the script if the last line of a function
+ # fails when set -e is in force, so we need another command to
+ # work around that:
+ :
+}
+
+
+# func_relative_path SRCDIR DSTDIR
+# --------------------------------
+# Set func_relative_path_result to the relative path from SRCDIR to DSTDIR.
+func_relative_path ()
+{
+ $debug_cmd
+
+ func_relative_path_result=
+ func_normal_abspath "$1"
+ func_relative_path_tlibdir=$func_normal_abspath_result
+ func_normal_abspath "$2"
+ func_relative_path_tbindir=$func_normal_abspath_result
+
+ # Ascend the tree starting from libdir
+ while :; do
+ # check if we have found a prefix of bindir
+ case $func_relative_path_tbindir in
+ $func_relative_path_tlibdir)
+ # found an exact match
+ func_relative_path_tcancelled=
+ break
+ ;;
+ $func_relative_path_tlibdir*)
+ # found a matching prefix
+ func_stripname "$func_relative_path_tlibdir" '' "$func_relative_path_tbindir"
+ func_relative_path_tcancelled=$func_stripname_result
+ if test -z "$func_relative_path_result"; then
+ func_relative_path_result=.
+ fi
+ break
+ ;;
+ *)
+ func_dirname $func_relative_path_tlibdir
+ func_relative_path_tlibdir=$func_dirname_result
+ if test -z "$func_relative_path_tlibdir"; then
+ # Have to descend all the way to the root!
+ func_relative_path_result=../$func_relative_path_result
+ func_relative_path_tcancelled=$func_relative_path_tbindir
+ break
+ fi
+ func_relative_path_result=../$func_relative_path_result
+ ;;
+ esac
+ done
+
+ # Now calculate path; take care to avoid doubling-up slashes.
+ func_stripname '' '/' "$func_relative_path_result"
+ func_relative_path_result=$func_stripname_result
+ func_stripname '/' '/' "$func_relative_path_tcancelled"
+ if test -n "$func_stripname_result"; then
+ func_append func_relative_path_result "/$func_stripname_result"
+ fi
+
+ # Normalisation. If bindir is libdir, return '.' else relative path.
+ if test -n "$func_relative_path_result"; then
+ func_stripname './' '' "$func_relative_path_result"
+ func_relative_path_result=$func_stripname_result
+ fi
+
+ test -n "$func_relative_path_result" || func_relative_path_result=.
+
+ :
+}
+
+
+# func_quote_for_eval ARG...
+# --------------------------
+# Aesthetically quote ARGs to be evaled later.
+# This function returns two values:
+# i) func_quote_for_eval_result
+# double-quoted, suitable for a subsequent eval
+# ii) func_quote_for_eval_unquoted_result
+# has all characters that are still active within double
+# quotes backslashified.
+func_quote_for_eval ()
+{
+ $debug_cmd
+
+ func_quote_for_eval_unquoted_result=
+ func_quote_for_eval_result=
+ while test 0 -lt $#; do
+ case $1 in
+ *[\\\`\"\$]*)
+ _G_unquoted_arg=`printf '%s\n' "$1" |$SED "$sed_quote_subst"` ;;
+ *)
+ _G_unquoted_arg=$1 ;;
+ esac
+ if test -n "$func_quote_for_eval_unquoted_result"; then
+ func_append func_quote_for_eval_unquoted_result " $_G_unquoted_arg"
+ else
+ func_append func_quote_for_eval_unquoted_result "$_G_unquoted_arg"
+ fi
+
+ case $_G_unquoted_arg in
+ # Double-quote args containing shell metacharacters to delay
+ # word splitting, command substitution and variable expansion
+ # for a subsequent eval.
+ # Many Bourne shells cannot handle close brackets correctly
+ # in scan sets, so we specify it separately.
+ *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
+ _G_quoted_arg=\"$_G_unquoted_arg\"
+ ;;
+ *)
+ _G_quoted_arg=$_G_unquoted_arg
+ ;;
+ esac
+
+ if test -n "$func_quote_for_eval_result"; then
+ func_append func_quote_for_eval_result " $_G_quoted_arg"
+ else
+ func_append func_quote_for_eval_result "$_G_quoted_arg"
+ fi
+ shift
+ done
+}
+
+
+# func_quote_for_expand ARG
+# -------------------------
+# Aesthetically quote ARG to be evaled later; same as above,
+# but do not quote variable references.
+func_quote_for_expand ()
+{
+ $debug_cmd
+
+ case $1 in
+ *[\\\`\"]*)
+ _G_arg=`$ECHO "$1" | $SED \
+ -e "$sed_double_quote_subst" -e "$sed_double_backslash"` ;;
+ *)
+ _G_arg=$1 ;;
+ esac
+
+ case $_G_arg in
+ # Double-quote args containing shell metacharacters to delay
+ # word splitting and command substitution for a subsequent eval.
+ # Many Bourne shells cannot handle close brackets correctly
+ # in scan sets, so we specify it separately.
+ *[\[\~\#\^\&\*\(\)\{\}\|\;\<\>\?\'\ \ ]*|*]*|"")
+ _G_arg=\"$_G_arg\"
+ ;;
+ esac
+
+ func_quote_for_expand_result=$_G_arg
+}
+
+
+# func_stripname PREFIX SUFFIX NAME
+# ---------------------------------
+# strip PREFIX and SUFFIX from NAME, and store in func_stripname_result.
+# PREFIX and SUFFIX must not contain globbing or regex special
+# characters, hashes, percent signs, but SUFFIX may contain a leading
+# dot (in which case that matches only a dot).
+if test yes = "$_G_HAVE_XSI_OPS"; then
+ eval 'func_stripname ()
+ {
+ $debug_cmd
+
+ # pdksh 5.2.14 does not do ${X%$Y} correctly if both X and Y are
+ # positional parameters, so assign one to ordinary variable first.
+ func_stripname_result=$3
+ func_stripname_result=${func_stripname_result#"$1"}
+ func_stripname_result=${func_stripname_result%"$2"}
+ }'
+else
+ func_stripname ()
+ {
+ $debug_cmd
+
+ case $2 in
+ .*) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%\\\\$2\$%%"`;;
+ *) func_stripname_result=`$ECHO "$3" | $SED -e "s%^$1%%" -e "s%$2\$%%"`;;
+ esac
+ }
+fi
+
+
+# func_show_eval CMD [FAIL_EXP]
+# -----------------------------
+# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is
+# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it.
+func_show_eval ()
+{
+ $debug_cmd
+
+ _G_cmd=$1
+ _G_fail_exp=${2-':'}
+
+ func_quote_for_expand "$_G_cmd"
+ eval "func_notquiet $func_quote_for_expand_result"
+
+ $opt_dry_run || {
+ eval "$_G_cmd"
+ _G_status=$?
+ if test 0 -ne "$_G_status"; then
+ eval "(exit $_G_status); $_G_fail_exp"
+ fi
+ }
+}
+
+
+# func_show_eval_locale CMD [FAIL_EXP]
+# ------------------------------------
+# Unless opt_quiet is true, then output CMD. Then, if opt_dryrun is
+# not true, evaluate CMD. If the evaluation of CMD fails, and FAIL_EXP
+# is given, then evaluate it. Use the saved locale for evaluation.
+func_show_eval_locale ()
+{
+ $debug_cmd
+
+ _G_cmd=$1
+ _G_fail_exp=${2-':'}
+
+ $opt_quiet || {
+ func_quote_for_expand "$_G_cmd"
+ eval "func_echo $func_quote_for_expand_result"
+ }
+
+ $opt_dry_run || {
+ eval "$_G_user_locale
+ $_G_cmd"
+ _G_status=$?
+ eval "$_G_safe_locale"
+ if test 0 -ne "$_G_status"; then
+ eval "(exit $_G_status); $_G_fail_exp"
+ fi
+ }
+}
+
+
+# func_tr_sh
+# ----------
+# Turn $1 into a string suitable for a shell variable name.
+# Result is stored in $func_tr_sh_result. All characters
+# not in the set a-zA-Z0-9_ are replaced with '_'. Further,
+# if $1 begins with a digit, a '_' is prepended as well.
+func_tr_sh ()
+{
+ $debug_cmd
+
+ case $1 in
+ [0-9]* | *[!a-zA-Z0-9_]*)
+ func_tr_sh_result=`$ECHO "$1" | $SED -e 's/^\([0-9]\)/_\1/' -e 's/[^a-zA-Z0-9_]/_/g'`
+ ;;
+ * )
+ func_tr_sh_result=$1
+ ;;
+ esac
+}
+
+
+# func_verbose ARG...
+# -------------------
+# Echo program name prefixed message in verbose mode only.
+func_verbose ()
+{
+ $debug_cmd
+
+ $opt_verbose && func_echo "$*"
+
+ :
+}
+
+
+# func_warn_and_continue ARG...
+# -----------------------------
+# Echo program name prefixed warning message to standard error.
+func_warn_and_continue ()
+{
+ $debug_cmd
+
+ $require_term_colors
+
+ func_echo_infix_1 "${tc_red}warning$tc_reset" "$*" >&2
+}
+
+
+# func_warning CATEGORY ARG...
+# ----------------------------
+# Echo program name prefixed warning message to standard error. Warning
+# messages can be filtered according to CATEGORY, where this function
+# elides messages where CATEGORY is not listed in the global variable
+# 'opt_warning_types'.
+func_warning ()
+{
+ $debug_cmd
+
+ # CATEGORY must be in the warning_categories list!
+ case " $warning_categories " in
+ *" $1 "*) ;;
+ *) func_internal_error "invalid warning category '$1'" ;;
+ esac
+
+ _G_category=$1
+ shift
+
+ case " $opt_warning_types " in
+ *" $_G_category "*) $warning_func ${1+"$@"} ;;
+ esac
+}
+
+
+# func_sort_ver VER1 VER2
+# -----------------------
+# 'sort -V' is not generally available.
+# Note this deviates from the version comparison in automake
+# in that it treats 1.5 < 1.5.0, and treats 1.4.4a < 1.4-p3a
+# but this should suffice as we won't be specifying old
+# version formats or redundant trailing .0 in bootstrap.conf.
+# If we did want full compatibility then we should probably
+# use m4_version_compare from autoconf.
+func_sort_ver ()
+{
+ $debug_cmd
+
+ printf '%s\n%s\n' "$1" "$2" \
+ | sort -t. -k 1,1n -k 2,2n -k 3,3n -k 4,4n -k 5,5n -k 6,6n -k 7,7n -k 8,8n -k 9,9n
+}
+
+# func_lt_ver PREV CURR
+# ---------------------
+# Return true if PREV and CURR are in the correct order according to
+# func_sort_ver, otherwise false. Use it like this:
+#
+# func_lt_ver "$prev_ver" "$proposed_ver" || func_fatal_error "..."
+func_lt_ver ()
+{
+ $debug_cmd
+
+ test "x$1" = x`func_sort_ver "$1" "$2" | $SED 1q`
+}
+
+
+# Local variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
+# time-stamp-time-zone: "UTC"
+# End:
+#! /bin/sh
+
+# Set a version string for this script.
+scriptversion=2014-01-07.03; # UTC
+
+# A portable, pluggable option parser for Bourne shell.
+# Written by Gary V. Vaughan, 2010
+
+# Copyright (C) 2010-2015 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions. There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# This program is free software: you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation, either version 3 of the License, or
+# (at your option) any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+
+# Please report bugs or propose patches to gary@gnu.org.
+
+
+## ------ ##
+## Usage. ##
+## ------ ##
+
+# This file is a library for parsing options in your shell scripts along
+# with assorted other useful supporting features that you can make use
+# of too.
+#
+# For the simplest scripts you might need only:
+#
+# #!/bin/sh
+# . relative/path/to/funclib.sh
+# . relative/path/to/options-parser
+# scriptversion=1.0
+# func_options ${1+"$@"}
+# eval set dummy "$func_options_result"; shift
+# ...rest of your script...
+#
+# In order for the '--version' option to work, you will need to have a
+# suitably formatted comment like the one at the top of this file
+# starting with '# Written by ' and ending with '# warranty; '.
+#
+# For '-h' and '--help' to work, you will also need a one line
+# description of your script's purpose in a comment directly above the
+# '# Written by ' line, like the one at the top of this file.
+#
+# The default options also support '--debug', which will turn on shell
+# execution tracing (see the comment above debug_cmd below for another
+# use), and '--verbose' and the func_verbose function to allow your script
+# to display verbose messages only when your user has specified
+# '--verbose'.
+#
+# After sourcing this file, you can plug processing for additional
+# options by amending the variables from the 'Configuration' section
+# below, and following the instructions in the 'Option parsing'
+# section further down.
+
+## -------------- ##
+## Configuration. ##
+## -------------- ##
+
+# You should override these variables in your script after sourcing this
+# file so that they reflect the customisations you have added to the
+# option parser.
+
+# The usage line for option parsing errors and the start of '-h' and
+# '--help' output messages. You can embed shell variables for delayed
+# expansion at the time the message is displayed, but you will need to
+# quote other shell meta-characters carefully to prevent them being
+# expanded when the contents are evaled.
+usage='$progpath [OPTION]...'
+
+# Short help message in response to '-h' and '--help'. Add to this or
+# override it after sourcing this library to reflect the full set of
+# options your script accepts.
+usage_message="\
+ --debug enable verbose shell tracing
+ -W, --warnings=CATEGORY
+ report the warnings falling in CATEGORY [all]
+ -v, --verbose verbosely report processing
+ --version print version information and exit
+ -h, --help print short or long help message and exit
+"
+
+# Additional text appended to 'usage_message' in response to '--help'.
+long_help_message="
+Warning categories include:
+ 'all' show all warnings
+ 'none' turn off all the warnings
+ 'error' warnings are treated as fatal errors"
+
+# Help message printed before fatal option parsing errors.
+fatal_help="Try '\$progname --help' for more information."
+
+
+
+## ------------------------- ##
+## Hook function management. ##
+## ------------------------- ##
+
+# This section contains functions for adding, removing, and running hooks
+# to the main code. A hook is just a named list of of function, that can
+# be run in order later on.
+
+# func_hookable FUNC_NAME
+# -----------------------
+# Declare that FUNC_NAME will run hooks added with
+# 'func_add_hook FUNC_NAME ...'.
+func_hookable ()
+{
+ $debug_cmd
+
+ func_append hookable_fns " $1"
+}
+
+
+# func_add_hook FUNC_NAME HOOK_FUNC
+# ---------------------------------
+# Request that FUNC_NAME call HOOK_FUNC before it returns. FUNC_NAME must
+# first have been declared "hookable" by a call to 'func_hookable'.
+func_add_hook ()
+{
+ $debug_cmd
+
+ case " $hookable_fns " in
+ *" $1 "*) ;;
+ *) func_fatal_error "'$1' does not accept hook functions." ;;
+ esac
+
+ eval func_append ${1}_hooks '" $2"'
+}
+
+
+# func_remove_hook FUNC_NAME HOOK_FUNC
+# ------------------------------------
+# Remove HOOK_FUNC from the list of functions called by FUNC_NAME.
+func_remove_hook ()
+{
+ $debug_cmd
+
+ eval ${1}_hooks='`$ECHO "\$'$1'_hooks" |$SED "s| '$2'||"`'
+}
+
+
+# func_run_hooks FUNC_NAME [ARG]...
+# ---------------------------------
+# Run all hook functions registered to FUNC_NAME.
+# It is assumed that the list of hook functions contains nothing more
+# than a whitespace-delimited list of legal shell function names, and
+# no effort is wasted trying to catch shell meta-characters or preserve
+# whitespace.
+func_run_hooks ()
+{
+ $debug_cmd
+
+ case " $hookable_fns " in
+ *" $1 "*) ;;
+ *) func_fatal_error "'$1' does not support hook funcions.n" ;;
+ esac
+
+ eval _G_hook_fns=\$$1_hooks; shift
+
+ for _G_hook in $_G_hook_fns; do
+ eval $_G_hook '"$@"'
+
+ # store returned options list back into positional
+ # parameters for next 'cmd' execution.
+ eval _G_hook_result=\$${_G_hook}_result
+ eval set dummy "$_G_hook_result"; shift
+ done
+
+ func_quote_for_eval ${1+"$@"}
+ func_run_hooks_result=$func_quote_for_eval_result
+}
+
+
+
+## --------------- ##
+## Option parsing. ##
+## --------------- ##
+
+# In order to add your own option parsing hooks, you must accept the
+# full positional parameter list in your hook function, remove any
+# options that you action, and then pass back the remaining unprocessed
+# options in '<hooked_function_name>_result', escaped suitably for
+# 'eval'. Like this:
+#
+# my_options_prep ()
+# {
+# $debug_cmd
+#
+# # Extend the existing usage message.
+# usage_message=$usage_message'
+# -s, --silent don'\''t print informational messages
+# '
+#
+# func_quote_for_eval ${1+"$@"}
+# my_options_prep_result=$func_quote_for_eval_result
+# }
+# func_add_hook func_options_prep my_options_prep
+#
+#
+# my_silent_option ()
+# {
+# $debug_cmd
+#
+# # Note that for efficiency, we parse as many options as we can
+# # recognise in a loop before passing the remainder back to the
+# # caller on the first unrecognised argument we encounter.
+# while test $# -gt 0; do
+# opt=$1; shift
+# case $opt in
+# --silent|-s) opt_silent=: ;;
+# # Separate non-argument short options:
+# -s*) func_split_short_opt "$_G_opt"
+# set dummy "$func_split_short_opt_name" \
+# "-$func_split_short_opt_arg" ${1+"$@"}
+# shift
+# ;;
+# *) set dummy "$_G_opt" "$*"; shift; break ;;
+# esac
+# done
+#
+# func_quote_for_eval ${1+"$@"}
+# my_silent_option_result=$func_quote_for_eval_result
+# }
+# func_add_hook func_parse_options my_silent_option
+#
+#
+# my_option_validation ()
+# {
+# $debug_cmd
+#
+# $opt_silent && $opt_verbose && func_fatal_help "\
+# '--silent' and '--verbose' options are mutually exclusive."
+#
+# func_quote_for_eval ${1+"$@"}
+# my_option_validation_result=$func_quote_for_eval_result
+# }
+# func_add_hook func_validate_options my_option_validation
+#
+# You'll alse need to manually amend $usage_message to reflect the extra
+# options you parse. It's preferable to append if you can, so that
+# multiple option parsing hooks can be added safely.
+
+
+# func_options [ARG]...
+# ---------------------
+# All the functions called inside func_options are hookable. See the
+# individual implementations for details.
+func_hookable func_options
+func_options ()
+{
+ $debug_cmd
+
+ func_options_prep ${1+"$@"}
+ eval func_parse_options \
+ ${func_options_prep_result+"$func_options_prep_result"}
+ eval func_validate_options \
+ ${func_parse_options_result+"$func_parse_options_result"}
+
+ eval func_run_hooks func_options \
+ ${func_validate_options_result+"$func_validate_options_result"}
+
+ # save modified positional parameters for caller
+ func_options_result=$func_run_hooks_result
+}
+
+
+# func_options_prep [ARG]...
+# --------------------------
+# All initialisations required before starting the option parse loop.
+# Note that when calling hook functions, we pass through the list of
+# positional parameters. If a hook function modifies that list, and
+# needs to propogate that back to rest of this script, then the complete
+# modified list must be put in 'func_run_hooks_result' before
+# returning.
+func_hookable func_options_prep
+func_options_prep ()
+{
+ $debug_cmd
+
+ # Option defaults:
+ opt_verbose=false
+ opt_warning_types=
+
+ func_run_hooks func_options_prep ${1+"$@"}
+
+ # save modified positional parameters for caller
+ func_options_prep_result=$func_run_hooks_result
+}
+
+
+# func_parse_options [ARG]...
+# ---------------------------
+# The main option parsing loop.
+func_hookable func_parse_options
+func_parse_options ()
+{
+ $debug_cmd
+
+ func_parse_options_result=
+
+ # this just eases exit handling
+ while test $# -gt 0; do
+ # Defer to hook functions for initial option parsing, so they
+ # get priority in the event of reusing an option name.
+ func_run_hooks func_parse_options ${1+"$@"}
+
+ # Adjust func_parse_options positional parameters to match
+ eval set dummy "$func_run_hooks_result"; shift
+
+ # Break out of the loop if we already parsed every option.
+ test $# -gt 0 || break
+
+ _G_opt=$1
+ shift
+ case $_G_opt in
+ --debug|-x) debug_cmd='set -x'
+ func_echo "enabling shell trace mode"
+ $debug_cmd
+ ;;
+
+ --no-warnings|--no-warning|--no-warn)
+ set dummy --warnings none ${1+"$@"}
+ shift
+ ;;
+
+ --warnings|--warning|-W)
+ test $# = 0 && func_missing_arg $_G_opt && break
+ case " $warning_categories $1" in
+ *" $1 "*)
+ # trailing space prevents matching last $1 above
+ func_append_uniq opt_warning_types " $1"
+ ;;
+ *all)
+ opt_warning_types=$warning_categories
+ ;;
+ *none)
+ opt_warning_types=none
+ warning_func=:
+ ;;
+ *error)
+ opt_warning_types=$warning_categories
+ warning_func=func_fatal_error
+ ;;
+ *)
+ func_fatal_error \
+ "unsupported warning category: '$1'"
+ ;;
+ esac
+ shift
+ ;;
+
+ --verbose|-v) opt_verbose=: ;;
+ --version) func_version ;;
+ -\?|-h) func_usage ;;
+ --help) func_help ;;
+
+ # Separate optargs to long options (plugins may need this):
+ --*=*) func_split_equals "$_G_opt"
+ set dummy "$func_split_equals_lhs" \
+ "$func_split_equals_rhs" ${1+"$@"}
+ shift
+ ;;
+
+ # Separate optargs to short options:
+ -W*)
+ func_split_short_opt "$_G_opt"
+ set dummy "$func_split_short_opt_name" \
+ "$func_split_short_opt_arg" ${1+"$@"}
+ shift
+ ;;
+
+ # Separate non-argument short options:
+ -\?*|-h*|-v*|-x*)
+ func_split_short_opt "$_G_opt"
+ set dummy "$func_split_short_opt_name" \
+ "-$func_split_short_opt_arg" ${1+"$@"}
+ shift
+ ;;
+
+ --) break ;;
+ -*) func_fatal_help "unrecognised option: '$_G_opt'" ;;
+ *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;;
+ esac
+ done
+
+ # save modified positional parameters for caller
+ func_quote_for_eval ${1+"$@"}
+ func_parse_options_result=$func_quote_for_eval_result
+}
+
+
+# func_validate_options [ARG]...
+# ------------------------------
+# Perform any sanity checks on option settings and/or unconsumed
+# arguments.
+func_hookable func_validate_options
+func_validate_options ()
+{
+ $debug_cmd
+
+ # Display all warnings if -W was not given.
+ test -n "$opt_warning_types" || opt_warning_types=" $warning_categories"
+
+ func_run_hooks func_validate_options ${1+"$@"}
+
+ # Bail if the options were screwed!
+ $exit_cmd $EXIT_FAILURE
+
+ # save modified positional parameters for caller
+ func_validate_options_result=$func_run_hooks_result
+}
+
+
+
+## ----------------- ##
+## Helper functions. ##
+## ----------------- ##
+
+# This section contains the helper functions used by the rest of the
+# hookable option parser framework in ascii-betical order.
+
+
+# func_fatal_help ARG...
+# ----------------------
+# Echo program name prefixed message to standard error, followed by
+# a help hint, and exit.
+func_fatal_help ()
+{
+ $debug_cmd
+
+ eval \$ECHO \""Usage: $usage"\"
+ eval \$ECHO \""$fatal_help"\"
+ func_error ${1+"$@"}
+ exit $EXIT_FAILURE
+}
+
+
+# func_help
+# ---------
+# Echo long help message to standard output and exit.
+func_help ()
+{
+ $debug_cmd
+
+ func_usage_message
+ $ECHO "$long_help_message"
+ exit 0
+}
+
+
+# func_missing_arg ARGNAME
+# ------------------------
+# Echo program name prefixed message to standard error and set global
+# exit_cmd.
+func_missing_arg ()
+{
+ $debug_cmd
+
+ func_error "Missing argument for '$1'."
+ exit_cmd=exit
+}
+
+
+# func_split_equals STRING
+# ------------------------
+# Set func_split_equals_lhs and func_split_equals_rhs shell variables after
+# splitting STRING at the '=' sign.
+test -z "$_G_HAVE_XSI_OPS" \
+ && (eval 'x=a/b/c;
+ test 5aa/bb/cc = "${#x}${x%%/*}${x%/*}${x#*/}${x##*/}"') 2>/dev/null \
+ && _G_HAVE_XSI_OPS=yes
+
+if test yes = "$_G_HAVE_XSI_OPS"
+then
+ # This is an XSI compatible shell, allowing a faster implementation...
+ eval 'func_split_equals ()
+ {
+ $debug_cmd
+
+ func_split_equals_lhs=${1%%=*}
+ func_split_equals_rhs=${1#*=}
+ test "x$func_split_equals_lhs" = "x$1" \
+ && func_split_equals_rhs=
+ }'
+else
+ # ...otherwise fall back to using expr, which is often a shell builtin.
+ func_split_equals ()
+ {
+ $debug_cmd
+
+ func_split_equals_lhs=`expr "x$1" : 'x\([^=]*\)'`
+ func_split_equals_rhs=
+ test "x$func_split_equals_lhs" = "x$1" \
+ || func_split_equals_rhs=`expr "x$1" : 'x[^=]*=\(.*\)$'`
+ }
+fi #func_split_equals
+
+
+# func_split_short_opt SHORTOPT
+# -----------------------------
+# Set func_split_short_opt_name and func_split_short_opt_arg shell
+# variables after splitting SHORTOPT after the 2nd character.
+if test yes = "$_G_HAVE_XSI_OPS"
+then
+ # This is an XSI compatible shell, allowing a faster implementation...
+ eval 'func_split_short_opt ()
+ {
+ $debug_cmd
+
+ func_split_short_opt_arg=${1#??}
+ func_split_short_opt_name=${1%"$func_split_short_opt_arg"}
+ }'
+else
+ # ...otherwise fall back to using expr, which is often a shell builtin.
+ func_split_short_opt ()
+ {
+ $debug_cmd
+
+ func_split_short_opt_name=`expr "x$1" : 'x-\(.\)'`
+ func_split_short_opt_arg=`expr "x$1" : 'x-.\(.*\)$'`
+ }
+fi #func_split_short_opt
+
+
+# func_usage
+# ----------
+# Echo short help message to standard output and exit.
+func_usage ()
+{
+ $debug_cmd
+
+ func_usage_message
+ $ECHO "Run '$progname --help |${PAGER-more}' for full usage"
+ exit 0
+}
+
+
+# func_usage_message
+# ------------------
+# Echo short help message to standard output.
+func_usage_message ()
+{
+ $debug_cmd
+
+ eval \$ECHO \""Usage: $usage"\"
+ echo
+ $SED -n 's|^# ||
+ /^Written by/{
+ x;p;x
+ }
+ h
+ /^Written by/q' < "$progpath"
+ echo
+ eval \$ECHO \""$usage_message"\"
+}
+
+
+# func_version
+# ------------
+# Echo version message to standard output and exit.
+func_version ()
+{
+ $debug_cmd
+
+ printf '%s\n' "$progname $scriptversion"
+ $SED -n '
+ /(C)/!b go
+ :more
+ /\./!{
+ N
+ s|\n# | |
+ b more
+ }
+ :go
+ /^# Written by /,/# warranty; / {
+ s|^# ||
+ s|^# *$||
+ s|\((C)\)[ 0-9,-]*[ ,-]\([1-9][0-9]* \)|\1 \2|
+ p
+ }
+ /^# Written by / {
+ s|^# ||
+ p
+ }
+ /^warranty; /q' < "$progpath"
+
+ exit $?
+}
+
+
+# Local variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-pattern: "10/scriptversion=%:y-%02m-%02d.%02H; # UTC"
+# time-stamp-time-zone: "UTC"
+# End:
+
+# Set a version string.
+scriptversion='(GNU libtool) 2.4.6'
+
+
+# func_echo ARG...
+# ----------------
+# Libtool also displays the current mode in messages, so override
+# funclib.sh func_echo with this custom definition.
+func_echo ()
+{
+ $debug_cmd
+
+ _G_message=$*
+
+ func_echo_IFS=$IFS
+ IFS=$nl
+ for _G_line in $_G_message; do
+ IFS=$func_echo_IFS
+ $ECHO "$progname${opt_mode+: $opt_mode}: $_G_line"
+ done
+ IFS=$func_echo_IFS
+}
+
+
+# func_warning ARG...
+# -------------------
+# Libtool warnings are not categorized, so override funclib.sh
+# func_warning with this simpler definition.
+func_warning ()
+{
+ $debug_cmd
+
+ $warning_func ${1+"$@"}
+}
+
+
+## ---------------- ##
+## Options parsing. ##
+## ---------------- ##
+
+# Hook in the functions to make sure our own options are parsed during
+# the option parsing loop.
+
+usage='$progpath [OPTION]... [MODE-ARG]...'
+
+# Short help message in response to '-h'.
+usage_message="Options:
+ --config show all configuration variables
+ --debug enable verbose shell tracing
+ -n, --dry-run display commands without modifying any files
+ --features display basic configuration information and exit
+ --mode=MODE use operation mode MODE
+ --no-warnings equivalent to '-Wnone'
+ --preserve-dup-deps don't remove duplicate dependency libraries
+ --quiet, --silent don't print informational messages
+ --tag=TAG use configuration variables from tag TAG
+ -v, --verbose print more informational messages than default
+ --version print version information
+ -W, --warnings=CATEGORY report the warnings falling in CATEGORY [all]
+ -h, --help, --help-all print short, long, or detailed help message
+"
+
+# Additional text appended to 'usage_message' in response to '--help'.
+func_help ()
+{
+ $debug_cmd
+
+ func_usage_message
+ $ECHO "$long_help_message
+
+MODE must be one of the following:
+
+ clean remove files from the build directory
+ compile compile a source file into a libtool object
+ execute automatically set library path, then run a program
+ finish complete the installation of libtool libraries
+ install install libraries or executables
+ link create a library or an executable
+ uninstall remove libraries from an installed directory
+
+MODE-ARGS vary depending on the MODE. When passed as first option,
+'--mode=MODE' may be abbreviated as 'MODE' or a unique abbreviation of that.
+Try '$progname --help --mode=MODE' for a more detailed description of MODE.
+
+When reporting a bug, please describe a test case to reproduce it and
+include the following information:
+
+ host-triplet: $host
+ shell: $SHELL
+ compiler: $LTCC
+ compiler flags: $LTCFLAGS
+ linker: $LD (gnu? $with_gnu_ld)
+ version: $progname (GNU libtool) 2.4.6
+ automake: `($AUTOMAKE --version) 2>/dev/null |$SED 1q`
+ autoconf: `($AUTOCONF --version) 2>/dev/null |$SED 1q`
+
+Report bugs to <bug-libtool@gnu.org>.
+GNU libtool home page: <http://www.gnu.org/software/libtool/>.
+General help using GNU software: <http://www.gnu.org/gethelp/>."
+ exit 0
+}
+
+
+# func_lo2o OBJECT-NAME
+# ---------------------
+# Transform OBJECT-NAME from a '.lo' suffix to the platform specific
+# object suffix.
+
+lo2o=s/\\.lo\$/.$objext/
+o2lo=s/\\.$objext\$/.lo/
+
+if test yes = "$_G_HAVE_XSI_OPS"; then
+ eval 'func_lo2o ()
+ {
+ case $1 in
+ *.lo) func_lo2o_result=${1%.lo}.$objext ;;
+ * ) func_lo2o_result=$1 ;;
+ esac
+ }'
+
+ # func_xform LIBOBJ-OR-SOURCE
+ # ---------------------------
+ # Transform LIBOBJ-OR-SOURCE from a '.o' or '.c' (or otherwise)
+ # suffix to a '.lo' libtool-object suffix.
+ eval 'func_xform ()
+ {
+ func_xform_result=${1%.*}.lo
+ }'
+else
+ # ...otherwise fall back to using sed.
+ func_lo2o ()
+ {
+ func_lo2o_result=`$ECHO "$1" | $SED "$lo2o"`
+ }
+
+ func_xform ()
+ {
+ func_xform_result=`$ECHO "$1" | $SED 's|\.[^.]*$|.lo|'`
+ }
+fi
+
+
+# func_fatal_configuration ARG...
+# -------------------------------
+# Echo program name prefixed message to standard error, followed by
+# a configuration failure hint, and exit.
+func_fatal_configuration ()
+{
+ func_fatal_error ${1+"$@"} \
+ "See the $PACKAGE documentation for more information." \
+ "Fatal configuration error."
+}
+
+
+# func_config
+# -----------
+# Display the configuration for all the tags in this script.
+func_config ()
+{
+ re_begincf='^# ### BEGIN LIBTOOL'
+ re_endcf='^# ### END LIBTOOL'
+
+ # Default configuration.
+ $SED "1,/$re_begincf CONFIG/d;/$re_endcf CONFIG/,\$d" < "$progpath"
+
+ # Now print the configurations for the tags.
+ for tagname in $taglist; do
+ $SED -n "/$re_begincf TAG CONFIG: $tagname\$/,/$re_endcf TAG CONFIG: $tagname\$/p" < "$progpath"
+ done
+
+ exit $?
+}
+
+
+# func_features
+# -------------
+# Display the features supported by this script.
+func_features ()
+{
+ echo "host: $host"
+ if test yes = "$build_libtool_libs"; then
+ echo "enable shared libraries"
+ else
+ echo "disable shared libraries"
+ fi
+ if test yes = "$build_old_libs"; then
+ echo "enable static libraries"
+ else
+ echo "disable static libraries"
+ fi
+
+ exit $?
+}
+
+
+# func_enable_tag TAGNAME
+# -----------------------
+# Verify that TAGNAME is valid, and either flag an error and exit, or
+# enable the TAGNAME tag. We also add TAGNAME to the global $taglist
+# variable here.
+func_enable_tag ()
+{
+ # Global variable:
+ tagname=$1
+
+ re_begincf="^# ### BEGIN LIBTOOL TAG CONFIG: $tagname\$"
+ re_endcf="^# ### END LIBTOOL TAG CONFIG: $tagname\$"
+ sed_extractcf=/$re_begincf/,/$re_endcf/p
+
+ # Validate tagname.
+ case $tagname in
+ *[!-_A-Za-z0-9,/]*)
+ func_fatal_error "invalid tag name: $tagname"
+ ;;
+ esac
+
+ # Don't test for the "default" C tag, as we know it's
+ # there but not specially marked.
+ case $tagname in
+ CC) ;;
+ *)
+ if $GREP "$re_begincf" "$progpath" >/dev/null 2>&1; then
+ taglist="$taglist $tagname"
+
+ # Evaluate the configuration. Be careful to quote the path
+ # and the sed script, to avoid splitting on whitespace, but
+ # also don't use non-portable quotes within backquotes within
+ # quotes we have to do it in 2 steps:
+ extractedcf=`$SED -n -e "$sed_extractcf" < "$progpath"`
+ eval "$extractedcf"
+ else
+ func_error "ignoring unknown tag $tagname"
+ fi
+ ;;
+ esac
+}
+
+
+# func_check_version_match
+# ------------------------
+# Ensure that we are using m4 macros, and libtool script from the same
+# release of libtool.
+func_check_version_match ()
+{
+ if test "$package_revision" != "$macro_revision"; then
+ if test "$VERSION" != "$macro_version"; then
+ if test -z "$macro_version"; then
+ cat >&2 <<_LT_EOF
+$progname: Version mismatch error. This is $PACKAGE $VERSION, but the
+$progname: definition of this LT_INIT comes from an older release.
+$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
+$progname: and run autoconf again.
+_LT_EOF
+ else
+ cat >&2 <<_LT_EOF
+$progname: Version mismatch error. This is $PACKAGE $VERSION, but the
+$progname: definition of this LT_INIT comes from $PACKAGE $macro_version.
+$progname: You should recreate aclocal.m4 with macros from $PACKAGE $VERSION
+$progname: and run autoconf again.
+_LT_EOF
+ fi
+ else
+ cat >&2 <<_LT_EOF
+$progname: Version mismatch error. This is $PACKAGE $VERSION, revision $package_revision,
+$progname: but the definition of this LT_INIT comes from revision $macro_revision.
+$progname: You should recreate aclocal.m4 with macros from revision $package_revision
+$progname: of $PACKAGE $VERSION and run autoconf again.
+_LT_EOF
+ fi
+
+ exit $EXIT_MISMATCH
+ fi
+}
+
+
+# libtool_options_prep [ARG]...
+# -----------------------------
+# Preparation for options parsed by libtool.
+libtool_options_prep ()
+{
+ $debug_mode
+
+ # Option defaults:
+ opt_config=false
+ opt_dlopen=
+ opt_dry_run=false
+ opt_help=false
+ opt_mode=
+ opt_preserve_dup_deps=false
+ opt_quiet=false
+
+ nonopt=
+ preserve_args=
+
+ # Shorthand for --mode=foo, only valid as the first argument
+ case $1 in
+ clean|clea|cle|cl)
+ shift; set dummy --mode clean ${1+"$@"}; shift
+ ;;
+ compile|compil|compi|comp|com|co|c)
+ shift; set dummy --mode compile ${1+"$@"}; shift
+ ;;
+ execute|execut|execu|exec|exe|ex|e)
+ shift; set dummy --mode execute ${1+"$@"}; shift
+ ;;
+ finish|finis|fini|fin|fi|f)
+ shift; set dummy --mode finish ${1+"$@"}; shift
+ ;;
+ install|instal|insta|inst|ins|in|i)
+ shift; set dummy --mode install ${1+"$@"}; shift
+ ;;
+ link|lin|li|l)
+ shift; set dummy --mode link ${1+"$@"}; shift
+ ;;
+ uninstall|uninstal|uninsta|uninst|unins|unin|uni|un|u)
+ shift; set dummy --mode uninstall ${1+"$@"}; shift
+ ;;
+ esac
+
+ # Pass back the list of options.
+ func_quote_for_eval ${1+"$@"}
+ libtool_options_prep_result=$func_quote_for_eval_result
+}
+func_add_hook func_options_prep libtool_options_prep
+
+
+# libtool_parse_options [ARG]...
+# ---------------------------------
+# Provide handling for libtool specific options.
+libtool_parse_options ()
+{
+ $debug_cmd
+
+ # Perform our own loop to consume as many options as possible in
+ # each iteration.
+ while test $# -gt 0; do
+ _G_opt=$1
+ shift
+ case $_G_opt in
+ --dry-run|--dryrun|-n)
+ opt_dry_run=:
+ ;;
+
+ --config) func_config ;;
+
+ --dlopen|-dlopen)
+ opt_dlopen="${opt_dlopen+$opt_dlopen
+}$1"
+ shift
+ ;;
+
+ --preserve-dup-deps)
+ opt_preserve_dup_deps=: ;;
+
+ --features) func_features ;;
+
+ --finish) set dummy --mode finish ${1+"$@"}; shift ;;
+
+ --help) opt_help=: ;;
+
+ --help-all) opt_help=': help-all' ;;
+
+ --mode) test $# = 0 && func_missing_arg $_G_opt && break
+ opt_mode=$1
+ case $1 in
+ # Valid mode arguments:
+ clean|compile|execute|finish|install|link|relink|uninstall) ;;
+
+ # Catch anything else as an error
+ *) func_error "invalid argument for $_G_opt"
+ exit_cmd=exit
+ break
+ ;;
+ esac
+ shift
+ ;;
+
+ --no-silent|--no-quiet)
+ opt_quiet=false
+ func_append preserve_args " $_G_opt"
+ ;;
+
+ --no-warnings|--no-warning|--no-warn)
+ opt_warning=false
+ func_append preserve_args " $_G_opt"
+ ;;
+
+ --no-verbose)
+ opt_verbose=false
+ func_append preserve_args " $_G_opt"
+ ;;
+
+ --silent|--quiet)
+ opt_quiet=:
+ opt_verbose=false
+ func_append preserve_args " $_G_opt"
+ ;;
+
+ --tag) test $# = 0 && func_missing_arg $_G_opt && break
+ opt_tag=$1
+ func_append preserve_args " $_G_opt $1"
+ func_enable_tag "$1"
+ shift
+ ;;
+
+ --verbose|-v) opt_quiet=false
+ opt_verbose=:
+ func_append preserve_args " $_G_opt"
+ ;;
+
+ # An option not handled by this hook function:
+ *) set dummy "$_G_opt" ${1+"$@"}; shift; break ;;
+ esac
+ done
+
+
+ # save modified positional parameters for caller
+ func_quote_for_eval ${1+"$@"}
+ libtool_parse_options_result=$func_quote_for_eval_result
+}
+func_add_hook func_parse_options libtool_parse_options
+
+
+
+# libtool_validate_options [ARG]...
+# ---------------------------------
+# Perform any sanity checks on option settings and/or unconsumed
+# arguments.
+libtool_validate_options ()
+{
+ # save first non-option argument
+ if test 0 -lt $#; then
+ nonopt=$1
+ shift
+ fi
+
+ # preserve --debug
+ test : = "$debug_cmd" || func_append preserve_args " --debug"
+
+ case $host in
+ # Solaris2 added to fix http://debbugs.gnu.org/cgi/bugreport.cgi?bug=16452
+ # see also: http://gcc.gnu.org/bugzilla/show_bug.cgi?id=59788
+ *cygwin* | *mingw* | *pw32* | *cegcc* | *solaris2* | *os2*)
+ # don't eliminate duplications in $postdeps and $predeps
+ opt_duplicate_compiler_generated_deps=:
+ ;;
+ *)
+ opt_duplicate_compiler_generated_deps=$opt_preserve_dup_deps
+ ;;
+ esac
+
+ $opt_help || {
+ # Sanity checks first:
+ func_check_version_match
+
+ test yes != "$build_libtool_libs" \
+ && test yes != "$build_old_libs" \
+ && func_fatal_configuration "not configured to build any kind of library"
+
+ # Darwin sucks
+ eval std_shrext=\"$shrext_cmds\"
+
+ # Only execute mode is allowed to have -dlopen flags.
+ if test -n "$opt_dlopen" && test execute != "$opt_mode"; then
+ func_error "unrecognized option '-dlopen'"
+ $ECHO "$help" 1>&2
+ exit $EXIT_FAILURE
+ fi
+
+ # Change the help message to a mode-specific one.
+ generic_help=$help
+ help="Try '$progname --help --mode=$opt_mode' for more information."
+ }
+
+ # Pass back the unparsed argument list
+ func_quote_for_eval ${1+"$@"}
+ libtool_validate_options_result=$func_quote_for_eval_result
+}
+func_add_hook func_validate_options libtool_validate_options
+
+
+# Process options as early as possible so that --help and --version
+# can return quickly.
+func_options ${1+"$@"}
+eval set dummy "$func_options_result"; shift
+
+
+
+## ----------- ##
+## Main. ##
+## ----------- ##
+
+magic='%%%MAGIC variable%%%'
+magic_exe='%%%MAGIC EXE variable%%%'
+
+# Global variables.
+extracted_archives=
+extracted_serial=0
+
+# If this variable is set in any of the actions, the command in it
+# will be execed at the end. This prevents here-documents from being
+# left over by shells.
+exec_cmd=
+
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+ eval 'cat <<_LTECHO_EOF
+$1
+_LTECHO_EOF'
+}
+
+# func_generated_by_libtool
+# True iff stdin has been generated by Libtool. This function is only
+# a basic sanity check; it will hardly flush out determined imposters.
+func_generated_by_libtool_p ()
+{
+ $GREP "^# Generated by .*$PACKAGE" > /dev/null 2>&1
+}
+
+# func_lalib_p file
+# True iff FILE is a libtool '.la' library or '.lo' object file.
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_lalib_p ()
+{
+ test -f "$1" &&
+ $SED -e 4q "$1" 2>/dev/null | func_generated_by_libtool_p
+}
+
+# func_lalib_unsafe_p file
+# True iff FILE is a libtool '.la' library or '.lo' object file.
+# This function implements the same check as func_lalib_p without
+# resorting to external programs. To this end, it redirects stdin and
+# closes it afterwards, without saving the original file descriptor.
+# As a safety measure, use it only where a negative result would be
+# fatal anyway. Works if 'file' does not exist.
+func_lalib_unsafe_p ()
+{
+ lalib_p=no
+ if test -f "$1" && test -r "$1" && exec 5<&0 <"$1"; then
+ for lalib_p_l in 1 2 3 4
+ do
+ read lalib_p_line
+ case $lalib_p_line in
+ \#\ Generated\ by\ *$PACKAGE* ) lalib_p=yes; break;;
+ esac
+ done
+ exec 0<&5 5<&-
+ fi
+ test yes = "$lalib_p"
+}
+
+# func_ltwrapper_script_p file
+# True iff FILE is a libtool wrapper script
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_script_p ()
+{
+ test -f "$1" &&
+ $lt_truncate_bin < "$1" 2>/dev/null | func_generated_by_libtool_p
+}
+
+# func_ltwrapper_executable_p file
+# True iff FILE is a libtool wrapper executable
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_executable_p ()
+{
+ func_ltwrapper_exec_suffix=
+ case $1 in
+ *.exe) ;;
+ *) func_ltwrapper_exec_suffix=.exe ;;
+ esac
+ $GREP "$magic_exe" "$1$func_ltwrapper_exec_suffix" >/dev/null 2>&1
+}
+
+# func_ltwrapper_scriptname file
+# Assumes file is an ltwrapper_executable
+# uses $file to determine the appropriate filename for a
+# temporary ltwrapper_script.
+func_ltwrapper_scriptname ()
+{
+ func_dirname_and_basename "$1" "" "."
+ func_stripname '' '.exe' "$func_basename_result"
+ func_ltwrapper_scriptname_result=$func_dirname_result/$objdir/${func_stripname_result}_ltshwrapper
+}
+
+# func_ltwrapper_p file
+# True iff FILE is a libtool wrapper script or wrapper executable
+# This function is only a basic sanity check; it will hardly flush out
+# determined imposters.
+func_ltwrapper_p ()
+{
+ func_ltwrapper_script_p "$1" || func_ltwrapper_executable_p "$1"
+}
+
+
+# func_execute_cmds commands fail_cmd
+# Execute tilde-delimited COMMANDS.
+# If FAIL_CMD is given, eval that upon failure.
+# FAIL_CMD may read-access the current command in variable CMD!
+func_execute_cmds ()
+{
+ $debug_cmd
+
+ save_ifs=$IFS; IFS='~'
+ for cmd in $1; do
+ IFS=$sp$nl
+ eval cmd=\"$cmd\"
+ IFS=$save_ifs
+ func_show_eval "$cmd" "${2-:}"
+ done
+ IFS=$save_ifs
+}
+
+
+# func_source file
+# Source FILE, adding directory component if necessary.
+# Note that it is not necessary on cygwin/mingw to append a dot to
+# FILE even if both FILE and FILE.exe exist: automatic-append-.exe
+# behavior happens only for exec(3), not for open(2)! Also, sourcing
+# 'FILE.' does not work on cygwin managed mounts.
+func_source ()
+{
+ $debug_cmd
+
+ case $1 in
+ */* | *\\*) . "$1" ;;
+ *) . "./$1" ;;
+ esac
+}
+
+
+# func_resolve_sysroot PATH
+# Replace a leading = in PATH with a sysroot. Store the result into
+# func_resolve_sysroot_result
+func_resolve_sysroot ()
+{
+ func_resolve_sysroot_result=$1
+ case $func_resolve_sysroot_result in
+ =*)
+ func_stripname '=' '' "$func_resolve_sysroot_result"
+ func_resolve_sysroot_result=$lt_sysroot$func_stripname_result
+ ;;
+ esac
+}
+
+# func_replace_sysroot PATH
+# If PATH begins with the sysroot, replace it with = and
+# store the result into func_replace_sysroot_result.
+func_replace_sysroot ()
+{
+ case $lt_sysroot:$1 in
+ ?*:"$lt_sysroot"*)
+ func_stripname "$lt_sysroot" '' "$1"
+ func_replace_sysroot_result='='$func_stripname_result
+ ;;
+ *)
+ # Including no sysroot.
+ func_replace_sysroot_result=$1
+ ;;
+ esac
+}
+
+# func_infer_tag arg
+# Infer tagged configuration to use if any are available and
+# if one wasn't chosen via the "--tag" command line option.
+# Only attempt this if the compiler in the base compile
+# command doesn't match the default compiler.
+# arg is usually of the form 'gcc ...'
+func_infer_tag ()
+{
+ $debug_cmd
+
+ if test -n "$available_tags" && test -z "$tagname"; then
+ CC_quoted=
+ for arg in $CC; do
+ func_append_quoted CC_quoted "$arg"
+ done
+ CC_expanded=`func_echo_all $CC`
+ CC_quoted_expanded=`func_echo_all $CC_quoted`
+ case $@ in
+ # Blanks in the command may have been stripped by the calling shell,
+ # but not from the CC environment variable when configure was run.
+ " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
+ " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*) ;;
+ # Blanks at the start of $base_compile will cause this to fail
+ # if we don't check for them as well.
+ *)
+ for z in $available_tags; do
+ if $GREP "^# ### BEGIN LIBTOOL TAG CONFIG: $z$" < "$progpath" > /dev/null; then
+ # Evaluate the configuration.
+ eval "`$SED -n -e '/^# ### BEGIN LIBTOOL TAG CONFIG: '$z'$/,/^# ### END LIBTOOL TAG CONFIG: '$z'$/p' < $progpath`"
+ CC_quoted=
+ for arg in $CC; do
+ # Double-quote args containing other shell metacharacters.
+ func_append_quoted CC_quoted "$arg"
+ done
+ CC_expanded=`func_echo_all $CC`
+ CC_quoted_expanded=`func_echo_all $CC_quoted`
+ case "$@ " in
+ " $CC "* | "$CC "* | " $CC_expanded "* | "$CC_expanded "* | \
+ " $CC_quoted"* | "$CC_quoted "* | " $CC_quoted_expanded "* | "$CC_quoted_expanded "*)
+ # The compiler in the base compile command matches
+ # the one in the tagged configuration.
+ # Assume this is the tagged configuration we want.
+ tagname=$z
+ break
+ ;;
+ esac
+ fi
+ done
+ # If $tagname still isn't set, then no tagged configuration
+ # was found and let the user know that the "--tag" command
+ # line option must be used.
+ if test -z "$tagname"; then
+ func_echo "unable to infer tagged configuration"
+ func_fatal_error "specify a tag with '--tag'"
+# else
+# func_verbose "using $tagname tagged configuration"
+ fi
+ ;;
+ esac
+ fi
+}
+
+
+
+# func_write_libtool_object output_name pic_name nonpic_name
+# Create a libtool object file (analogous to a ".la" file),
+# but don't create it if we're doing a dry run.
+func_write_libtool_object ()
+{
+ write_libobj=$1
+ if test yes = "$build_libtool_libs"; then
+ write_lobj=\'$2\'
+ else
+ write_lobj=none
+ fi
+
+ if test yes = "$build_old_libs"; then
+ write_oldobj=\'$3\'
+ else
+ write_oldobj=none
+ fi
+
+ $opt_dry_run || {
+ cat >${write_libobj}T <<EOF
+# $write_libobj - a libtool object file
+# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
+#
+# Please DO NOT delete this file!
+# It is necessary for linking the library.
+
+# Name of the PIC object.
+pic_object=$write_lobj
+
+# Name of the non-PIC object
+non_pic_object=$write_oldobj
+
+EOF
+ $MV "${write_libobj}T" "$write_libobj"
+ }
+}
+
+
+##################################################
+# FILE NAME AND PATH CONVERSION HELPER FUNCTIONS #
+##################################################
+
+# func_convert_core_file_wine_to_w32 ARG
+# Helper function used by file name conversion functions when $build is *nix,
+# and $host is mingw, cygwin, or some other w32 environment. Relies on a
+# correctly configured wine environment available, with the winepath program
+# in $build's $PATH.
+#
+# ARG is the $build file name to be converted to w32 format.
+# Result is available in $func_convert_core_file_wine_to_w32_result, and will
+# be empty on error (or when ARG is empty)
+func_convert_core_file_wine_to_w32 ()
+{
+ $debug_cmd
+
+ func_convert_core_file_wine_to_w32_result=$1
+ if test -n "$1"; then
+ # Unfortunately, winepath does not exit with a non-zero error code, so we
+ # are forced to check the contents of stdout. On the other hand, if the
+ # command is not found, the shell will set an exit code of 127 and print
+ # *an error message* to stdout. So we must check for both error code of
+ # zero AND non-empty stdout, which explains the odd construction:
+ func_convert_core_file_wine_to_w32_tmp=`winepath -w "$1" 2>/dev/null`
+ if test "$?" -eq 0 && test -n "$func_convert_core_file_wine_to_w32_tmp"; then
+ func_convert_core_file_wine_to_w32_result=`$ECHO "$func_convert_core_file_wine_to_w32_tmp" |
+ $SED -e "$sed_naive_backslashify"`
+ else
+ func_convert_core_file_wine_to_w32_result=
+ fi
+ fi
+}
+# end: func_convert_core_file_wine_to_w32
+
+
+# func_convert_core_path_wine_to_w32 ARG
+# Helper function used by path conversion functions when $build is *nix, and
+# $host is mingw, cygwin, or some other w32 environment. Relies on a correctly
+# configured wine environment available, with the winepath program in $build's
+# $PATH. Assumes ARG has no leading or trailing path separator characters.
+#
+# ARG is path to be converted from $build format to win32.
+# Result is available in $func_convert_core_path_wine_to_w32_result.
+# Unconvertible file (directory) names in ARG are skipped; if no directory names
+# are convertible, then the result may be empty.
+func_convert_core_path_wine_to_w32 ()
+{
+ $debug_cmd
+
+ # unfortunately, winepath doesn't convert paths, only file names
+ func_convert_core_path_wine_to_w32_result=
+ if test -n "$1"; then
+ oldIFS=$IFS
+ IFS=:
+ for func_convert_core_path_wine_to_w32_f in $1; do
+ IFS=$oldIFS
+ func_convert_core_file_wine_to_w32 "$func_convert_core_path_wine_to_w32_f"
+ if test -n "$func_convert_core_file_wine_to_w32_result"; then
+ if test -z "$func_convert_core_path_wine_to_w32_result"; then
+ func_convert_core_path_wine_to_w32_result=$func_convert_core_file_wine_to_w32_result
+ else
+ func_append func_convert_core_path_wine_to_w32_result ";$func_convert_core_file_wine_to_w32_result"
+ fi
+ fi
+ done
+ IFS=$oldIFS
+ fi
+}
+# end: func_convert_core_path_wine_to_w32
+
+
+# func_cygpath ARGS...
+# Wrapper around calling the cygpath program via LT_CYGPATH. This is used when
+# when (1) $build is *nix and Cygwin is hosted via a wine environment; or (2)
+# $build is MSYS and $host is Cygwin, or (3) $build is Cygwin. In case (1) or
+# (2), returns the Cygwin file name or path in func_cygpath_result (input
+# file name or path is assumed to be in w32 format, as previously converted
+# from $build's *nix or MSYS format). In case (3), returns the w32 file name
+# or path in func_cygpath_result (input file name or path is assumed to be in
+# Cygwin format). Returns an empty string on error.
+#
+# ARGS are passed to cygpath, with the last one being the file name or path to
+# be converted.
+#
+# Specify the absolute *nix (or w32) name to cygpath in the LT_CYGPATH
+# environment variable; do not put it in $PATH.
+func_cygpath ()
+{
+ $debug_cmd
+
+ if test -n "$LT_CYGPATH" && test -f "$LT_CYGPATH"; then
+ func_cygpath_result=`$LT_CYGPATH "$@" 2>/dev/null`
+ if test "$?" -ne 0; then
+ # on failure, ensure result is empty
+ func_cygpath_result=
+ fi
+ else
+ func_cygpath_result=
+ func_error "LT_CYGPATH is empty or specifies non-existent file: '$LT_CYGPATH'"
+ fi
+}
+#end: func_cygpath
+
+
+# func_convert_core_msys_to_w32 ARG
+# Convert file name or path ARG from MSYS format to w32 format. Return
+# result in func_convert_core_msys_to_w32_result.
+func_convert_core_msys_to_w32 ()
+{
+ $debug_cmd
+
+ # awkward: cmd appends spaces to result
+ func_convert_core_msys_to_w32_result=`( cmd //c echo "$1" ) 2>/dev/null |
+ $SED -e 's/[ ]*$//' -e "$sed_naive_backslashify"`
+}
+#end: func_convert_core_msys_to_w32
+
+
+# func_convert_file_check ARG1 ARG2
+# Verify that ARG1 (a file name in $build format) was converted to $host
+# format in ARG2. Otherwise, emit an error message, but continue (resetting
+# func_to_host_file_result to ARG1).
+func_convert_file_check ()
+{
+ $debug_cmd
+
+ if test -z "$2" && test -n "$1"; then
+ func_error "Could not determine host file name corresponding to"
+ func_error " '$1'"
+ func_error "Continuing, but uninstalled executables may not work."
+ # Fallback:
+ func_to_host_file_result=$1
+ fi
+}
+# end func_convert_file_check
+
+
+# func_convert_path_check FROM_PATHSEP TO_PATHSEP FROM_PATH TO_PATH
+# Verify that FROM_PATH (a path in $build format) was converted to $host
+# format in TO_PATH. Otherwise, emit an error message, but continue, resetting
+# func_to_host_file_result to a simplistic fallback value (see below).
+func_convert_path_check ()
+{
+ $debug_cmd
+
+ if test -z "$4" && test -n "$3"; then
+ func_error "Could not determine the host path corresponding to"
+ func_error " '$3'"
+ func_error "Continuing, but uninstalled executables may not work."
+ # Fallback. This is a deliberately simplistic "conversion" and
+ # should not be "improved". See libtool.info.
+ if test "x$1" != "x$2"; then
+ lt_replace_pathsep_chars="s|$1|$2|g"
+ func_to_host_path_result=`echo "$3" |
+ $SED -e "$lt_replace_pathsep_chars"`
+ else
+ func_to_host_path_result=$3
+ fi
+ fi
+}
+# end func_convert_path_check
+
+
+# func_convert_path_front_back_pathsep FRONTPAT BACKPAT REPL ORIG
+# Modifies func_to_host_path_result by prepending REPL if ORIG matches FRONTPAT
+# and appending REPL if ORIG matches BACKPAT.
+func_convert_path_front_back_pathsep ()
+{
+ $debug_cmd
+
+ case $4 in
+ $1 ) func_to_host_path_result=$3$func_to_host_path_result
+ ;;
+ esac
+ case $4 in
+ $2 ) func_append func_to_host_path_result "$3"
+ ;;
+ esac
+}
+# end func_convert_path_front_back_pathsep
+
+
+##################################################
+# $build to $host FILE NAME CONVERSION FUNCTIONS #
+##################################################
+# invoked via '$to_host_file_cmd ARG'
+#
+# In each case, ARG is the path to be converted from $build to $host format.
+# Result will be available in $func_to_host_file_result.
+
+
+# func_to_host_file ARG
+# Converts the file name ARG from $build format to $host format. Return result
+# in func_to_host_file_result.
+func_to_host_file ()
+{
+ $debug_cmd
+
+ $to_host_file_cmd "$1"
+}
+# end func_to_host_file
+
+
+# func_to_tool_file ARG LAZY
+# converts the file name ARG from $build format to toolchain format. Return
+# result in func_to_tool_file_result. If the conversion in use is listed
+# in (the comma separated) LAZY, no conversion takes place.
+func_to_tool_file ()
+{
+ $debug_cmd
+
+ case ,$2, in
+ *,"$to_tool_file_cmd",*)
+ func_to_tool_file_result=$1
+ ;;
+ *)
+ $to_tool_file_cmd "$1"
+ func_to_tool_file_result=$func_to_host_file_result
+ ;;
+ esac
+}
+# end func_to_tool_file
+
+
+# func_convert_file_noop ARG
+# Copy ARG to func_to_host_file_result.
+func_convert_file_noop ()
+{
+ func_to_host_file_result=$1
+}
+# end func_convert_file_noop
+
+
+# func_convert_file_msys_to_w32 ARG
+# Convert file name ARG from (mingw) MSYS to (mingw) w32 format; automatic
+# conversion to w32 is not available inside the cwrapper. Returns result in
+# func_to_host_file_result.
+func_convert_file_msys_to_w32 ()
+{
+ $debug_cmd
+
+ func_to_host_file_result=$1
+ if test -n "$1"; then
+ func_convert_core_msys_to_w32 "$1"
+ func_to_host_file_result=$func_convert_core_msys_to_w32_result
+ fi
+ func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_msys_to_w32
+
+
+# func_convert_file_cygwin_to_w32 ARG
+# Convert file name ARG from Cygwin to w32 format. Returns result in
+# func_to_host_file_result.
+func_convert_file_cygwin_to_w32 ()
+{
+ $debug_cmd
+
+ func_to_host_file_result=$1
+ if test -n "$1"; then
+ # because $build is cygwin, we call "the" cygpath in $PATH; no need to use
+ # LT_CYGPATH in this case.
+ func_to_host_file_result=`cygpath -m "$1"`
+ fi
+ func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_cygwin_to_w32
+
+
+# func_convert_file_nix_to_w32 ARG
+# Convert file name ARG from *nix to w32 format. Requires a wine environment
+# and a working winepath. Returns result in func_to_host_file_result.
+func_convert_file_nix_to_w32 ()
+{
+ $debug_cmd
+
+ func_to_host_file_result=$1
+ if test -n "$1"; then
+ func_convert_core_file_wine_to_w32 "$1"
+ func_to_host_file_result=$func_convert_core_file_wine_to_w32_result
+ fi
+ func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_nix_to_w32
+
+
+# func_convert_file_msys_to_cygwin ARG
+# Convert file name ARG from MSYS to Cygwin format. Requires LT_CYGPATH set.
+# Returns result in func_to_host_file_result.
+func_convert_file_msys_to_cygwin ()
+{
+ $debug_cmd
+
+ func_to_host_file_result=$1
+ if test -n "$1"; then
+ func_convert_core_msys_to_w32 "$1"
+ func_cygpath -u "$func_convert_core_msys_to_w32_result"
+ func_to_host_file_result=$func_cygpath_result
+ fi
+ func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_msys_to_cygwin
+
+
+# func_convert_file_nix_to_cygwin ARG
+# Convert file name ARG from *nix to Cygwin format. Requires Cygwin installed
+# in a wine environment, working winepath, and LT_CYGPATH set. Returns result
+# in func_to_host_file_result.
+func_convert_file_nix_to_cygwin ()
+{
+ $debug_cmd
+
+ func_to_host_file_result=$1
+ if test -n "$1"; then
+ # convert from *nix to w32, then use cygpath to convert from w32 to cygwin.
+ func_convert_core_file_wine_to_w32 "$1"
+ func_cygpath -u "$func_convert_core_file_wine_to_w32_result"
+ func_to_host_file_result=$func_cygpath_result
+ fi
+ func_convert_file_check "$1" "$func_to_host_file_result"
+}
+# end func_convert_file_nix_to_cygwin
+
+
+#############################################
+# $build to $host PATH CONVERSION FUNCTIONS #
+#############################################
+# invoked via '$to_host_path_cmd ARG'
+#
+# In each case, ARG is the path to be converted from $build to $host format.
+# The result will be available in $func_to_host_path_result.
+#
+# Path separators are also converted from $build format to $host format. If
+# ARG begins or ends with a path separator character, it is preserved (but
+# converted to $host format) on output.
+#
+# All path conversion functions are named using the following convention:
+# file name conversion function : func_convert_file_X_to_Y ()
+# path conversion function : func_convert_path_X_to_Y ()
+# where, for any given $build/$host combination the 'X_to_Y' value is the
+# same. If conversion functions are added for new $build/$host combinations,
+# the two new functions must follow this pattern, or func_init_to_host_path_cmd
+# will break.
+
+
+# func_init_to_host_path_cmd
+# Ensures that function "pointer" variable $to_host_path_cmd is set to the
+# appropriate value, based on the value of $to_host_file_cmd.
+to_host_path_cmd=
+func_init_to_host_path_cmd ()
+{
+ $debug_cmd
+
+ if test -z "$to_host_path_cmd"; then
+ func_stripname 'func_convert_file_' '' "$to_host_file_cmd"
+ to_host_path_cmd=func_convert_path_$func_stripname_result
+ fi
+}
+
+
+# func_to_host_path ARG
+# Converts the path ARG from $build format to $host format. Return result
+# in func_to_host_path_result.
+func_to_host_path ()
+{
+ $debug_cmd
+
+ func_init_to_host_path_cmd
+ $to_host_path_cmd "$1"
+}
+# end func_to_host_path
+
+
+# func_convert_path_noop ARG
+# Copy ARG to func_to_host_path_result.
+func_convert_path_noop ()
+{
+ func_to_host_path_result=$1
+}
+# end func_convert_path_noop
+
+
+# func_convert_path_msys_to_w32 ARG
+# Convert path ARG from (mingw) MSYS to (mingw) w32 format; automatic
+# conversion to w32 is not available inside the cwrapper. Returns result in
+# func_to_host_path_result.
+func_convert_path_msys_to_w32 ()
+{
+ $debug_cmd
+
+ func_to_host_path_result=$1
+ if test -n "$1"; then
+ # Remove leading and trailing path separator characters from ARG. MSYS
+ # behavior is inconsistent here; cygpath turns them into '.;' and ';.';
+ # and winepath ignores them completely.
+ func_stripname : : "$1"
+ func_to_host_path_tmp1=$func_stripname_result
+ func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
+ func_to_host_path_result=$func_convert_core_msys_to_w32_result
+ func_convert_path_check : ";" \
+ "$func_to_host_path_tmp1" "$func_to_host_path_result"
+ func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+ fi
+}
+# end func_convert_path_msys_to_w32
+
+
+# func_convert_path_cygwin_to_w32 ARG
+# Convert path ARG from Cygwin to w32 format. Returns result in
+# func_to_host_file_result.
+func_convert_path_cygwin_to_w32 ()
+{
+ $debug_cmd
+
+ func_to_host_path_result=$1
+ if test -n "$1"; then
+ # See func_convert_path_msys_to_w32:
+ func_stripname : : "$1"
+ func_to_host_path_tmp1=$func_stripname_result
+ func_to_host_path_result=`cygpath -m -p "$func_to_host_path_tmp1"`
+ func_convert_path_check : ";" \
+ "$func_to_host_path_tmp1" "$func_to_host_path_result"
+ func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+ fi
+}
+# end func_convert_path_cygwin_to_w32
+
+
+# func_convert_path_nix_to_w32 ARG
+# Convert path ARG from *nix to w32 format. Requires a wine environment and
+# a working winepath. Returns result in func_to_host_file_result.
+func_convert_path_nix_to_w32 ()
+{
+ $debug_cmd
+
+ func_to_host_path_result=$1
+ if test -n "$1"; then
+ # See func_convert_path_msys_to_w32:
+ func_stripname : : "$1"
+ func_to_host_path_tmp1=$func_stripname_result
+ func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
+ func_to_host_path_result=$func_convert_core_path_wine_to_w32_result
+ func_convert_path_check : ";" \
+ "$func_to_host_path_tmp1" "$func_to_host_path_result"
+ func_convert_path_front_back_pathsep ":*" "*:" ";" "$1"
+ fi
+}
+# end func_convert_path_nix_to_w32
+
+
+# func_convert_path_msys_to_cygwin ARG
+# Convert path ARG from MSYS to Cygwin format. Requires LT_CYGPATH set.
+# Returns result in func_to_host_file_result.
+func_convert_path_msys_to_cygwin ()
+{
+ $debug_cmd
+
+ func_to_host_path_result=$1
+ if test -n "$1"; then
+ # See func_convert_path_msys_to_w32:
+ func_stripname : : "$1"
+ func_to_host_path_tmp1=$func_stripname_result
+ func_convert_core_msys_to_w32 "$func_to_host_path_tmp1"
+ func_cygpath -u -p "$func_convert_core_msys_to_w32_result"
+ func_to_host_path_result=$func_cygpath_result
+ func_convert_path_check : : \
+ "$func_to_host_path_tmp1" "$func_to_host_path_result"
+ func_convert_path_front_back_pathsep ":*" "*:" : "$1"
+ fi
+}
+# end func_convert_path_msys_to_cygwin
+
+
+# func_convert_path_nix_to_cygwin ARG
+# Convert path ARG from *nix to Cygwin format. Requires Cygwin installed in a
+# a wine environment, working winepath, and LT_CYGPATH set. Returns result in
+# func_to_host_file_result.
+func_convert_path_nix_to_cygwin ()
+{
+ $debug_cmd
+
+ func_to_host_path_result=$1
+ if test -n "$1"; then
+ # Remove leading and trailing path separator characters from
+ # ARG. msys behavior is inconsistent here, cygpath turns them
+ # into '.;' and ';.', and winepath ignores them completely.
+ func_stripname : : "$1"
+ func_to_host_path_tmp1=$func_stripname_result
+ func_convert_core_path_wine_to_w32 "$func_to_host_path_tmp1"
+ func_cygpath -u -p "$func_convert_core_path_wine_to_w32_result"
+ func_to_host_path_result=$func_cygpath_result
+ func_convert_path_check : : \
+ "$func_to_host_path_tmp1" "$func_to_host_path_result"
+ func_convert_path_front_back_pathsep ":*" "*:" : "$1"
+ fi
+}
+# end func_convert_path_nix_to_cygwin
+
+
+# func_dll_def_p FILE
+# True iff FILE is a Windows DLL '.def' file.
+# Keep in sync with _LT_DLL_DEF_P in libtool.m4
+func_dll_def_p ()
+{
+ $debug_cmd
+
+ func_dll_def_p_tmp=`$SED -n \
+ -e 's/^[ ]*//' \
+ -e '/^\(;.*\)*$/d' \
+ -e 's/^\(EXPORTS\|LIBRARY\)\([ ].*\)*$/DEF/p' \
+ -e q \
+ "$1"`
+ test DEF = "$func_dll_def_p_tmp"
+}
+
+
+# func_mode_compile arg...
+func_mode_compile ()
+{
+ $debug_cmd
+
+ # Get the compilation command and the source file.
+ base_compile=
+ srcfile=$nonopt # always keep a non-empty value in "srcfile"
+ suppress_opt=yes
+ suppress_output=
+ arg_mode=normal
+ libobj=
+ later=
+ pie_flag=
+
+ for arg
+ do
+ case $arg_mode in
+ arg )
+ # do not "continue". Instead, add this to base_compile
+ lastarg=$arg
+ arg_mode=normal
+ ;;
+
+ target )
+ libobj=$arg
+ arg_mode=normal
+ continue
+ ;;
+
+ normal )
+ # Accept any command-line options.
+ case $arg in
+ -o)
+ test -n "$libobj" && \
+ func_fatal_error "you cannot specify '-o' more than once"
+ arg_mode=target
+ continue
+ ;;
+
+ -pie | -fpie | -fPIE)
+ func_append pie_flag " $arg"
+ continue
+ ;;
+
+ -shared | -static | -prefer-pic | -prefer-non-pic)
+ func_append later " $arg"
+ continue
+ ;;
+
+ -no-suppress)
+ suppress_opt=no
+ continue
+ ;;
+
+ -Xcompiler)
+ arg_mode=arg # the next one goes into the "base_compile" arg list
+ continue # The current "srcfile" will either be retained or
+ ;; # replaced later. I would guess that would be a bug.
+
+ -Wc,*)
+ func_stripname '-Wc,' '' "$arg"
+ args=$func_stripname_result
+ lastarg=
+ save_ifs=$IFS; IFS=,
+ for arg in $args; do
+ IFS=$save_ifs
+ func_append_quoted lastarg "$arg"
+ done
+ IFS=$save_ifs
+ func_stripname ' ' '' "$lastarg"
+ lastarg=$func_stripname_result
+
+ # Add the arguments to base_compile.
+ func_append base_compile " $lastarg"
+ continue
+ ;;
+
+ *)
+ # Accept the current argument as the source file.
+ # The previous "srcfile" becomes the current argument.
+ #
+ lastarg=$srcfile
+ srcfile=$arg
+ ;;
+ esac # case $arg
+ ;;
+ esac # case $arg_mode
+
+ # Aesthetically quote the previous argument.
+ func_append_quoted base_compile "$lastarg"
+ done # for arg
+
+ case $arg_mode in
+ arg)
+ func_fatal_error "you must specify an argument for -Xcompile"
+ ;;
+ target)
+ func_fatal_error "you must specify a target with '-o'"
+ ;;
+ *)
+ # Get the name of the library object.
+ test -z "$libobj" && {
+ func_basename "$srcfile"
+ libobj=$func_basename_result
+ }
+ ;;
+ esac
+
+ # Recognize several different file suffixes.
+ # If the user specifies -o file.o, it is replaced with file.lo
+ case $libobj in
+ *.[cCFSifmso] | \
+ *.ada | *.adb | *.ads | *.asm | \
+ *.c++ | *.cc | *.ii | *.class | *.cpp | *.cxx | \
+ *.[fF][09]? | *.for | *.java | *.go | *.obj | *.sx | *.cu | *.cup)
+ func_xform "$libobj"
+ libobj=$func_xform_result
+ ;;
+ esac
+
+ case $libobj in
+ *.lo) func_lo2o "$libobj"; obj=$func_lo2o_result ;;
+ *)
+ func_fatal_error "cannot determine name of library object from '$libobj'"
+ ;;
+ esac
+
+ func_infer_tag $base_compile
+
+ for arg in $later; do
+ case $arg in
+ -shared)
+ test yes = "$build_libtool_libs" \
+ || func_fatal_configuration "cannot build a shared library"
+ build_old_libs=no
+ continue
+ ;;
+
+ -static)
+ build_libtool_libs=no
+ build_old_libs=yes
+ continue
+ ;;
+
+ -prefer-pic)
+ pic_mode=yes
+ continue
+ ;;
+
+ -prefer-non-pic)
+ pic_mode=no
+ continue
+ ;;
+ esac
+ done
+
+ func_quote_for_eval "$libobj"
+ test "X$libobj" != "X$func_quote_for_eval_result" \
+ && $ECHO "X$libobj" | $GREP '[]~#^*{};<>?"'"'"' &()|`$[]' \
+ && func_warning "libobj name '$libobj' may not contain shell special characters."
+ func_dirname_and_basename "$obj" "/" ""
+ objname=$func_basename_result
+ xdir=$func_dirname_result
+ lobj=$xdir$objdir/$objname
+
+ test -z "$base_compile" && \
+ func_fatal_help "you must specify a compilation command"
+
+ # Delete any leftover library objects.
+ if test yes = "$build_old_libs"; then
+ removelist="$obj $lobj $libobj ${libobj}T"
+ else
+ removelist="$lobj $libobj ${libobj}T"
+ fi
+
+ # On Cygwin there's no "real" PIC flag so we must build both object types
+ case $host_os in
+ cygwin* | mingw* | pw32* | os2* | cegcc*)
+ pic_mode=default
+ ;;
+ esac
+ if test no = "$pic_mode" && test pass_all != "$deplibs_check_method"; then
+ # non-PIC code in shared libraries is not supported
+ pic_mode=default
+ fi
+
+ # Calculate the filename of the output object if compiler does
+ # not support -o with -c
+ if test no = "$compiler_c_o"; then
+ output_obj=`$ECHO "$srcfile" | $SED 's%^.*/%%; s%\.[^.]*$%%'`.$objext
+ lockfile=$output_obj.lock
+ else
+ output_obj=
+ need_locks=no
+ lockfile=
+ fi
+
+ # Lock this critical section if it is needed
+ # We use this script file to make the link, it avoids creating a new file
+ if test yes = "$need_locks"; then
+ until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
+ func_echo "Waiting for $lockfile to be removed"
+ sleep 2
+ done
+ elif test warn = "$need_locks"; then
+ if test -f "$lockfile"; then
+ $ECHO "\
+*** ERROR, $lockfile exists and contains:
+`cat $lockfile 2>/dev/null`
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support '-c' and '-o' together. If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+ $opt_dry_run || $RM $removelist
+ exit $EXIT_FAILURE
+ fi
+ func_append removelist " $output_obj"
+ $ECHO "$srcfile" > "$lockfile"
+ fi
+
+ $opt_dry_run || $RM $removelist
+ func_append removelist " $lockfile"
+ trap '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE' 1 2 15
+
+ func_to_tool_file "$srcfile" func_convert_file_msys_to_w32
+ srcfile=$func_to_tool_file_result
+ func_quote_for_eval "$srcfile"
+ qsrcfile=$func_quote_for_eval_result
+
+ # Only build a PIC object if we are building libtool libraries.
+ if test yes = "$build_libtool_libs"; then
+ # Without this assignment, base_compile gets emptied.
+ fbsd_hideous_sh_bug=$base_compile
+
+ if test no != "$pic_mode"; then
+ command="$base_compile $qsrcfile $pic_flag"
+ else
+ # Don't build PIC code
+ command="$base_compile $qsrcfile"
+ fi
+
+ func_mkdir_p "$xdir$objdir"
+
+ if test -z "$output_obj"; then
+ # Place PIC objects in $objdir
+ func_append command " -o $lobj"
+ fi
+
+ func_show_eval_locale "$command" \
+ 'test -n "$output_obj" && $RM $removelist; exit $EXIT_FAILURE'
+
+ if test warn = "$need_locks" &&
+ test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
+ $ECHO "\
+*** ERROR, $lockfile contains:
+`cat $lockfile 2>/dev/null`
+
+but it should contain:
+$srcfile
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support '-c' and '-o' together. If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+ $opt_dry_run || $RM $removelist
+ exit $EXIT_FAILURE
+ fi
+
+ # Just move the object if needed, then go on to compile the next one
+ if test -n "$output_obj" && test "X$output_obj" != "X$lobj"; then
+ func_show_eval '$MV "$output_obj" "$lobj"' \
+ 'error=$?; $opt_dry_run || $RM $removelist; exit $error'
+ fi
+
+ # Allow error messages only from the first compilation.
+ if test yes = "$suppress_opt"; then
+ suppress_output=' >/dev/null 2>&1'
+ fi
+ fi
+
+ # Only build a position-dependent object if we build old libraries.
+ if test yes = "$build_old_libs"; then
+ if test yes != "$pic_mode"; then
+ # Don't build PIC code
+ command="$base_compile $qsrcfile$pie_flag"
+ else
+ command="$base_compile $qsrcfile $pic_flag"
+ fi
+ if test yes = "$compiler_c_o"; then
+ func_append command " -o $obj"
+ fi
+
+ # Suppress compiler output if we already did a PIC compilation.
+ func_append command "$suppress_output"
+ func_show_eval_locale "$command" \
+ '$opt_dry_run || $RM $removelist; exit $EXIT_FAILURE'
+
+ if test warn = "$need_locks" &&
+ test "X`cat $lockfile 2>/dev/null`" != "X$srcfile"; then
+ $ECHO "\
+*** ERROR, $lockfile contains:
+`cat $lockfile 2>/dev/null`
+
+but it should contain:
+$srcfile
+
+This indicates that another process is trying to use the same
+temporary object file, and libtool could not work around it because
+your compiler does not support '-c' and '-o' together. If you
+repeat this compilation, it may succeed, by chance, but you had better
+avoid parallel builds (make -j) in this platform, or get a better
+compiler."
+
+ $opt_dry_run || $RM $removelist
+ exit $EXIT_FAILURE
+ fi
+
+ # Just move the object if needed
+ if test -n "$output_obj" && test "X$output_obj" != "X$obj"; then
+ func_show_eval '$MV "$output_obj" "$obj"' \
+ 'error=$?; $opt_dry_run || $RM $removelist; exit $error'
+ fi
+ fi
+
+ $opt_dry_run || {
+ func_write_libtool_object "$libobj" "$objdir/$objname" "$objname"
+
+ # Unlock the critical section if it was locked
+ if test no != "$need_locks"; then
+ removelist=$lockfile
+ $RM "$lockfile"
+ fi
+ }
+
+ exit $EXIT_SUCCESS
+}
+
+$opt_help || {
+ test compile = "$opt_mode" && func_mode_compile ${1+"$@"}
+}
+
+func_mode_help ()
+{
+ # We need to display help for each of the modes.
+ case $opt_mode in
+ "")
+ # Generic help is extracted from the usage comments
+ # at the start of this file.
+ func_help
+ ;;
+
+ clean)
+ $ECHO \
+"Usage: $progname [OPTION]... --mode=clean RM [RM-OPTION]... FILE...
+
+Remove files from the build directory.
+
+RM is the name of the program to use to delete files associated with each FILE
+(typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed
+to RM.
+
+If FILE is a libtool library, object or program, all the files associated
+with it are deleted. Otherwise, only FILE itself is deleted using RM."
+ ;;
+
+ compile)
+ $ECHO \
+"Usage: $progname [OPTION]... --mode=compile COMPILE-COMMAND... SOURCEFILE
+
+Compile a source file into a libtool library object.
+
+This mode accepts the following additional options:
+
+ -o OUTPUT-FILE set the output file name to OUTPUT-FILE
+ -no-suppress do not suppress compiler output for multiple passes
+ -prefer-pic try to build PIC objects only
+ -prefer-non-pic try to build non-PIC objects only
+ -shared do not build a '.o' file suitable for static linking
+ -static only build a '.o' file suitable for static linking
+ -Wc,FLAG pass FLAG directly to the compiler
+
+COMPILE-COMMAND is a command to be used in creating a 'standard' object file
+from the given SOURCEFILE.
+
+The output file name is determined by removing the directory component from
+SOURCEFILE, then substituting the C source code suffix '.c' with the
+library object suffix, '.lo'."
+ ;;
+
+ execute)
+ $ECHO \
+"Usage: $progname [OPTION]... --mode=execute COMMAND [ARGS]...
+
+Automatically set library path, then run a program.
+
+This mode accepts the following additional options:
+
+ -dlopen FILE add the directory containing FILE to the library path
+
+This mode sets the library path environment variable according to '-dlopen'
+flags.
+
+If any of the ARGS are libtool executable wrappers, then they are translated
+into their corresponding uninstalled binary, and any of their required library
+directories are added to the library path.
+
+Then, COMMAND is executed, with ARGS as arguments."
+ ;;
+
+ finish)
+ $ECHO \
+"Usage: $progname [OPTION]... --mode=finish [LIBDIR]...
+
+Complete the installation of libtool libraries.
+
+Each LIBDIR is a directory that contains libtool libraries.
+
+The commands that this mode executes may require superuser privileges. Use
+the '--dry-run' option if you just want to see what would be executed."
+ ;;
+
+ install)
+ $ECHO \
+"Usage: $progname [OPTION]... --mode=install INSTALL-COMMAND...
+
+Install executables or libraries.
+
+INSTALL-COMMAND is the installation command. The first component should be
+either the 'install' or 'cp' program.
+
+The following components of INSTALL-COMMAND are treated specially:
+
+ -inst-prefix-dir PREFIX-DIR Use PREFIX-DIR as a staging area for installation
+
+The rest of the components are interpreted as arguments to that command (only
+BSD-compatible install options are recognized)."
+ ;;
+
+ link)
+ $ECHO \
+"Usage: $progname [OPTION]... --mode=link LINK-COMMAND...
+
+Link object files or libraries together to form another library, or to
+create an executable program.
+
+LINK-COMMAND is a command using the C compiler that you would use to create
+a program from several object files.
+
+The following components of LINK-COMMAND are treated specially:
+
+ -all-static do not do any dynamic linking at all
+ -avoid-version do not add a version suffix if possible
+ -bindir BINDIR specify path to binaries directory (for systems where
+ libraries must be found in the PATH setting at runtime)
+ -dlopen FILE '-dlpreopen' FILE if it cannot be dlopened at runtime
+ -dlpreopen FILE link in FILE and add its symbols to lt_preloaded_symbols
+ -export-dynamic allow symbols from OUTPUT-FILE to be resolved with dlsym(3)
+ -export-symbols SYMFILE
+ try to export only the symbols listed in SYMFILE
+ -export-symbols-regex REGEX
+ try to export only the symbols matching REGEX
+ -LLIBDIR search LIBDIR for required installed libraries
+ -lNAME OUTPUT-FILE requires the installed library libNAME
+ -module build a library that can dlopened
+ -no-fast-install disable the fast-install mode
+ -no-install link a not-installable executable
+ -no-undefined declare that a library does not refer to external symbols
+ -o OUTPUT-FILE create OUTPUT-FILE from the specified objects
+ -objectlist FILE use a list of object files found in FILE to specify objects
+ -os2dllname NAME force a short DLL name on OS/2 (no effect on other OSes)
+ -precious-files-regex REGEX
+ don't remove output files matching REGEX
+ -release RELEASE specify package release information
+ -rpath LIBDIR the created library will eventually be installed in LIBDIR
+ -R[ ]LIBDIR add LIBDIR to the runtime path of programs and libraries
+ -shared only do dynamic linking of libtool libraries
+ -shrext SUFFIX override the standard shared library file extension
+ -static do not do any dynamic linking of uninstalled libtool libraries
+ -static-libtool-libs
+ do not do any dynamic linking of libtool libraries
+ -version-info CURRENT[:REVISION[:AGE]]
+ specify library version info [each variable defaults to 0]
+ -weak LIBNAME declare that the target provides the LIBNAME interface
+ -Wc,FLAG
+ -Xcompiler FLAG pass linker-specific FLAG directly to the compiler
+ -Wl,FLAG
+ -Xlinker FLAG pass linker-specific FLAG directly to the linker
+ -XCClinker FLAG pass link-specific FLAG to the compiler driver (CC)
+
+All other options (arguments beginning with '-') are ignored.
+
+Every other argument is treated as a filename. Files ending in '.la' are
+treated as uninstalled libtool libraries, other files are standard or library
+object files.
+
+If the OUTPUT-FILE ends in '.la', then a libtool library is created,
+only library objects ('.lo' files) may be specified, and '-rpath' is
+required, except when creating a convenience library.
+
+If OUTPUT-FILE ends in '.a' or '.lib', then a standard library is created
+using 'ar' and 'ranlib', or on Windows using 'lib'.
+
+If OUTPUT-FILE ends in '.lo' or '.$objext', then a reloadable object file
+is created, otherwise an executable program is created."
+ ;;
+
+ uninstall)
+ $ECHO \
+"Usage: $progname [OPTION]... --mode=uninstall RM [RM-OPTION]... FILE...
+
+Remove libraries from an installation directory.
+
+RM is the name of the program to use to delete files associated with each FILE
+(typically '/bin/rm'). RM-OPTIONS are options (such as '-f') to be passed
+to RM.
+
+If FILE is a libtool library, all the files associated with it are deleted.
+Otherwise, only FILE itself is deleted using RM."
+ ;;
+
+ *)
+ func_fatal_help "invalid operation mode '$opt_mode'"
+ ;;
+ esac
+
+ echo
+ $ECHO "Try '$progname --help' for more information about other modes."
+}
+
+# Now that we've collected a possible --mode arg, show help if necessary
+if $opt_help; then
+ if test : = "$opt_help"; then
+ func_mode_help
+ else
+ {
+ func_help noexit
+ for opt_mode in compile link execute install finish uninstall clean; do
+ func_mode_help
+ done
+ } | $SED -n '1p; 2,$s/^Usage:/ or: /p'
+ {
+ func_help noexit
+ for opt_mode in compile link execute install finish uninstall clean; do
+ echo
+ func_mode_help
+ done
+ } |
+ $SED '1d
+ /^When reporting/,/^Report/{
+ H
+ d
+ }
+ $x
+ /information about other modes/d
+ /more detailed .*MODE/d
+ s/^Usage:.*--mode=\([^ ]*\) .*/Description of \1 mode:/'
+ fi
+ exit $?
+fi
+
+
+# func_mode_execute arg...
+func_mode_execute ()
+{
+ $debug_cmd
+
+ # The first argument is the command name.
+ cmd=$nonopt
+ test -z "$cmd" && \
+ func_fatal_help "you must specify a COMMAND"
+
+ # Handle -dlopen flags immediately.
+ for file in $opt_dlopen; do
+ test -f "$file" \
+ || func_fatal_help "'$file' is not a file"
+
+ dir=
+ case $file in
+ *.la)
+ func_resolve_sysroot "$file"
+ file=$func_resolve_sysroot_result
+
+ # Check to see that this really is a libtool archive.
+ func_lalib_unsafe_p "$file" \
+ || func_fatal_help "'$lib' is not a valid libtool archive"
+
+ # Read the libtool library.
+ dlname=
+ library_names=
+ func_source "$file"
+
+ # Skip this library if it cannot be dlopened.
+ if test -z "$dlname"; then
+ # Warn if it was a shared library.
+ test -n "$library_names" && \
+ func_warning "'$file' was not linked with '-export-dynamic'"
+ continue
+ fi
+
+ func_dirname "$file" "" "."
+ dir=$func_dirname_result
+
+ if test -f "$dir/$objdir/$dlname"; then
+ func_append dir "/$objdir"
+ else
+ if test ! -f "$dir/$dlname"; then
+ func_fatal_error "cannot find '$dlname' in '$dir' or '$dir/$objdir'"
+ fi
+ fi
+ ;;
+
+ *.lo)
+ # Just add the directory containing the .lo file.
+ func_dirname "$file" "" "."
+ dir=$func_dirname_result
+ ;;
+
+ *)
+ func_warning "'-dlopen' is ignored for non-libtool libraries and objects"
+ continue
+ ;;
+ esac
+
+ # Get the absolute pathname.
+ absdir=`cd "$dir" && pwd`
+ test -n "$absdir" && dir=$absdir
+
+ # Now add the directory to shlibpath_var.
+ if eval "test -z \"\$$shlibpath_var\""; then
+ eval "$shlibpath_var=\"\$dir\""
+ else
+ eval "$shlibpath_var=\"\$dir:\$$shlibpath_var\""
+ fi
+ done
+
+ # This variable tells wrapper scripts just to set shlibpath_var
+ # rather than running their programs.
+ libtool_execute_magic=$magic
+
+ # Check if any of the arguments is a wrapper script.
+ args=
+ for file
+ do
+ case $file in
+ -* | *.la | *.lo ) ;;
+ *)
+ # Do a test to see if this is really a libtool program.
+ if func_ltwrapper_script_p "$file"; then
+ func_source "$file"
+ # Transform arg to wrapped name.
+ file=$progdir/$program
+ elif func_ltwrapper_executable_p "$file"; then
+ func_ltwrapper_scriptname "$file"
+ func_source "$func_ltwrapper_scriptname_result"
+ # Transform arg to wrapped name.
+ file=$progdir/$program
+ fi
+ ;;
+ esac
+ # Quote arguments (to preserve shell metacharacters).
+ func_append_quoted args "$file"
+ done
+
+ if $opt_dry_run; then
+ # Display what would be done.
+ if test -n "$shlibpath_var"; then
+ eval "\$ECHO \"\$shlibpath_var=\$$shlibpath_var\""
+ echo "export $shlibpath_var"
+ fi
+ $ECHO "$cmd$args"
+ exit $EXIT_SUCCESS
+ else
+ if test -n "$shlibpath_var"; then
+ # Export the shlibpath_var.
+ eval "export $shlibpath_var"
+ fi
+
+ # Restore saved environment variables
+ for lt_var in LANG LANGUAGE LC_ALL LC_CTYPE LC_COLLATE LC_MESSAGES
+ do
+ eval "if test \"\${save_$lt_var+set}\" = set; then
+ $lt_var=\$save_$lt_var; export $lt_var
+ else
+ $lt_unset $lt_var
+ fi"
+ done
+
+ # Now prepare to actually exec the command.
+ exec_cmd=\$cmd$args
+ fi
+}
+
+test execute = "$opt_mode" && func_mode_execute ${1+"$@"}
+
+
+# func_mode_finish arg...
+func_mode_finish ()
+{
+ $debug_cmd
+
+ libs=
+ libdirs=
+ admincmds=
+
+ for opt in "$nonopt" ${1+"$@"}
+ do
+ if test -d "$opt"; then
+ func_append libdirs " $opt"
+
+ elif test -f "$opt"; then
+ if func_lalib_unsafe_p "$opt"; then
+ func_append libs " $opt"
+ else
+ func_warning "'$opt' is not a valid libtool archive"
+ fi
+
+ else
+ func_fatal_error "invalid argument '$opt'"
+ fi
+ done
+
+ if test -n "$libs"; then
+ if test -n "$lt_sysroot"; then
+ sysroot_regex=`$ECHO "$lt_sysroot" | $SED "$sed_make_literal_regex"`
+ sysroot_cmd="s/\([ ']\)$sysroot_regex/\1/g;"
+ else
+ sysroot_cmd=
+ fi
+
+ # Remove sysroot references
+ if $opt_dry_run; then
+ for lib in $libs; do
+ echo "removing references to $lt_sysroot and '=' prefixes from $lib"
+ done
+ else
+ tmpdir=`func_mktempdir`
+ for lib in $libs; do
+ $SED -e "$sysroot_cmd s/\([ ']-[LR]\)=/\1/g; s/\([ ']\)=/\1/g" $lib \
+ > $tmpdir/tmp-la
+ mv -f $tmpdir/tmp-la $lib
+ done
+ ${RM}r "$tmpdir"
+ fi
+ fi
+
+ if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
+ for libdir in $libdirs; do
+ if test -n "$finish_cmds"; then
+ # Do each command in the finish commands.
+ func_execute_cmds "$finish_cmds" 'admincmds="$admincmds
+'"$cmd"'"'
+ fi
+ if test -n "$finish_eval"; then
+ # Do the single finish_eval.
+ eval cmds=\"$finish_eval\"
+ $opt_dry_run || eval "$cmds" || func_append admincmds "
+ $cmds"
+ fi
+ done
+ fi
+
+ # Exit here if they wanted silent mode.
+ $opt_quiet && exit $EXIT_SUCCESS
+
+ if test -n "$finish_cmds$finish_eval" && test -n "$libdirs"; then
+ echo "----------------------------------------------------------------------"
+ echo "Libraries have been installed in:"
+ for libdir in $libdirs; do
+ $ECHO " $libdir"
+ done
+ echo
+ echo "If you ever happen to want to link against installed libraries"
+ echo "in a given directory, LIBDIR, you must either use libtool, and"
+ echo "specify the full pathname of the library, or use the '-LLIBDIR'"
+ echo "flag during linking and do at least one of the following:"
+ if test -n "$shlibpath_var"; then
+ echo " - add LIBDIR to the '$shlibpath_var' environment variable"
+ echo " during execution"
+ fi
+ if test -n "$runpath_var"; then
+ echo " - add LIBDIR to the '$runpath_var' environment variable"
+ echo " during linking"
+ fi
+ if test -n "$hardcode_libdir_flag_spec"; then
+ libdir=LIBDIR
+ eval flag=\"$hardcode_libdir_flag_spec\"
+
+ $ECHO " - use the '$flag' linker flag"
+ fi
+ if test -n "$admincmds"; then
+ $ECHO " - have your system administrator run these commands:$admincmds"
+ fi
+ if test -f /etc/ld.so.conf; then
+ echo " - have your system administrator add LIBDIR to '/etc/ld.so.conf'"
+ fi
+ echo
+
+ echo "See any operating system documentation about shared libraries for"
+ case $host in
+ solaris2.[6789]|solaris2.1[0-9])
+ echo "more information, such as the ld(1), crle(1) and ld.so(8) manual"
+ echo "pages."
+ ;;
+ *)
+ echo "more information, such as the ld(1) and ld.so(8) manual pages."
+ ;;
+ esac
+ echo "----------------------------------------------------------------------"
+ fi
+ exit $EXIT_SUCCESS
+}
+
+test finish = "$opt_mode" && func_mode_finish ${1+"$@"}
+
+
+# func_mode_install arg...
+func_mode_install ()
+{
+ $debug_cmd
+
+ # There may be an optional sh(1) argument at the beginning of
+ # install_prog (especially on Windows NT).
+ if test "$SHELL" = "$nonopt" || test /bin/sh = "$nonopt" ||
+ # Allow the use of GNU shtool's install command.
+ case $nonopt in *shtool*) :;; *) false;; esac
+ then
+ # Aesthetically quote it.
+ func_quote_for_eval "$nonopt"
+ install_prog="$func_quote_for_eval_result "
+ arg=$1
+ shift
+ else
+ install_prog=
+ arg=$nonopt
+ fi
+
+ # The real first argument should be the name of the installation program.
+ # Aesthetically quote it.
+ func_quote_for_eval "$arg"
+ func_append install_prog "$func_quote_for_eval_result"
+ install_shared_prog=$install_prog
+ case " $install_prog " in
+ *[\\\ /]cp\ *) install_cp=: ;;
+ *) install_cp=false ;;
+ esac
+
+ # We need to accept at least all the BSD install flags.
+ dest=
+ files=
+ opts=
+ prev=
+ install_type=
+ isdir=false
+ stripme=
+ no_mode=:
+ for arg
+ do
+ arg2=
+ if test -n "$dest"; then
+ func_append files " $dest"
+ dest=$arg
+ continue
+ fi
+
+ case $arg in
+ -d) isdir=: ;;
+ -f)
+ if $install_cp; then :; else
+ prev=$arg
+ fi
+ ;;
+ -g | -m | -o)
+ prev=$arg
+ ;;
+ -s)
+ stripme=" -s"
+ continue
+ ;;
+ -*)
+ ;;
+ *)
+ # If the previous option needed an argument, then skip it.
+ if test -n "$prev"; then
+ if test X-m = "X$prev" && test -n "$install_override_mode"; then
+ arg2=$install_override_mode
+ no_mode=false
+ fi
+ prev=
+ else
+ dest=$arg
+ continue
+ fi
+ ;;
+ esac
+
+ # Aesthetically quote the argument.
+ func_quote_for_eval "$arg"
+ func_append install_prog " $func_quote_for_eval_result"
+ if test -n "$arg2"; then
+ func_quote_for_eval "$arg2"
+ fi
+ func_append install_shared_prog " $func_quote_for_eval_result"
+ done
+
+ test -z "$install_prog" && \
+ func_fatal_help "you must specify an install program"
+
+ test -n "$prev" && \
+ func_fatal_help "the '$prev' option requires an argument"
+
+ if test -n "$install_override_mode" && $no_mode; then
+ if $install_cp; then :; else
+ func_quote_for_eval "$install_override_mode"
+ func_append install_shared_prog " -m $func_quote_for_eval_result"
+ fi
+ fi
+
+ if test -z "$files"; then
+ if test -z "$dest"; then
+ func_fatal_help "no file or destination specified"
+ else
+ func_fatal_help "you must specify a destination"
+ fi
+ fi
+
+ # Strip any trailing slash from the destination.
+ func_stripname '' '/' "$dest"
+ dest=$func_stripname_result
+
+ # Check to see that the destination is a directory.
+ test -d "$dest" && isdir=:
+ if $isdir; then
+ destdir=$dest
+ destname=
+ else
+ func_dirname_and_basename "$dest" "" "."
+ destdir=$func_dirname_result
+ destname=$func_basename_result
+
+ # Not a directory, so check to see that there is only one file specified.
+ set dummy $files; shift
+ test "$#" -gt 1 && \
+ func_fatal_help "'$dest' is not a directory"
+ fi
+ case $destdir in
+ [\\/]* | [A-Za-z]:[\\/]*) ;;
+ *)
+ for file in $files; do
+ case $file in
+ *.lo) ;;
+ *)
+ func_fatal_help "'$destdir' must be an absolute directory name"
+ ;;
+ esac
+ done
+ ;;
+ esac
+
+ # This variable tells wrapper scripts just to set variables rather
+ # than running their programs.
+ libtool_install_magic=$magic
+
+ staticlibs=
+ future_libdirs=
+ current_libdirs=
+ for file in $files; do
+
+ # Do each installation.
+ case $file in
+ *.$libext)
+ # Do the static libraries later.
+ func_append staticlibs " $file"
+ ;;
+
+ *.la)
+ func_resolve_sysroot "$file"
+ file=$func_resolve_sysroot_result
+
+ # Check to see that this really is a libtool archive.
+ func_lalib_unsafe_p "$file" \
+ || func_fatal_help "'$file' is not a valid libtool archive"
+
+ library_names=
+ old_library=
+ relink_command=
+ func_source "$file"
+
+ # Add the libdir to current_libdirs if it is the destination.
+ if test "X$destdir" = "X$libdir"; then
+ case "$current_libdirs " in
+ *" $libdir "*) ;;
+ *) func_append current_libdirs " $libdir" ;;
+ esac
+ else
+ # Note the libdir as a future libdir.
+ case "$future_libdirs " in
+ *" $libdir "*) ;;
+ *) func_append future_libdirs " $libdir" ;;
+ esac
+ fi
+
+ func_dirname "$file" "/" ""
+ dir=$func_dirname_result
+ func_append dir "$objdir"
+
+ if test -n "$relink_command"; then
+ # Determine the prefix the user has applied to our future dir.
+ inst_prefix_dir=`$ECHO "$destdir" | $SED -e "s%$libdir\$%%"`
+
+ # Don't allow the user to place us outside of our expected
+ # location b/c this prevents finding dependent libraries that
+ # are installed to the same prefix.
+ # At present, this check doesn't affect windows .dll's that
+ # are installed into $libdir/../bin (currently, that works fine)
+ # but it's something to keep an eye on.
+ test "$inst_prefix_dir" = "$destdir" && \
+ func_fatal_error "error: cannot install '$file' to a directory not ending in $libdir"
+
+ if test -n "$inst_prefix_dir"; then
+ # Stick the inst_prefix_dir data into the link command.
+ relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%-inst-prefix-dir $inst_prefix_dir%"`
+ else
+ relink_command=`$ECHO "$relink_command" | $SED "s%@inst_prefix_dir@%%"`
+ fi
+
+ func_warning "relinking '$file'"
+ func_show_eval "$relink_command" \
+ 'func_fatal_error "error: relink '\''$file'\'' with the above command before installing it"'
+ fi
+
+ # See the names of the shared library.
+ set dummy $library_names; shift
+ if test -n "$1"; then
+ realname=$1
+ shift
+
+ srcname=$realname
+ test -n "$relink_command" && srcname=${realname}T
+
+ # Install the shared library and build the symlinks.
+ func_show_eval "$install_shared_prog $dir/$srcname $destdir/$realname" \
+ 'exit $?'
+ tstripme=$stripme
+ case $host_os in
+ cygwin* | mingw* | pw32* | cegcc*)
+ case $realname in
+ *.dll.a)
+ tstripme=
+ ;;
+ esac
+ ;;
+ os2*)
+ case $realname in
+ *_dll.a)
+ tstripme=
+ ;;
+ esac
+ ;;
+ esac
+ if test -n "$tstripme" && test -n "$striplib"; then
+ func_show_eval "$striplib $destdir/$realname" 'exit $?'
+ fi
+
+ if test "$#" -gt 0; then
+ # Delete the old symlinks, and create new ones.
+ # Try 'ln -sf' first, because the 'ln' binary might depend on
+ # the symlink we replace! Solaris /bin/ln does not understand -f,
+ # so we also need to try rm && ln -s.
+ for linkname
+ do
+ test "$linkname" != "$realname" \
+ && func_show_eval "(cd $destdir && { $LN_S -f $realname $linkname || { $RM $linkname && $LN_S $realname $linkname; }; })"
+ done
+ fi
+
+ # Do each command in the postinstall commands.
+ lib=$destdir/$realname
+ func_execute_cmds "$postinstall_cmds" 'exit $?'
+ fi
+
+ # Install the pseudo-library for information purposes.
+ func_basename "$file"
+ name=$func_basename_result
+ instname=$dir/${name}i
+ func_show_eval "$install_prog $instname $destdir/$name" 'exit $?'
+
+ # Maybe install the static library, too.
+ test -n "$old_library" && func_append staticlibs " $dir/$old_library"
+ ;;
+
+ *.lo)
+ # Install (i.e. copy) a libtool object.
+
+ # Figure out destination file name, if it wasn't already specified.
+ if test -n "$destname"; then
+ destfile=$destdir/$destname
+ else
+ func_basename "$file"
+ destfile=$func_basename_result
+ destfile=$destdir/$destfile
+ fi
+
+ # Deduce the name of the destination old-style object file.
+ case $destfile in
+ *.lo)
+ func_lo2o "$destfile"
+ staticdest=$func_lo2o_result
+ ;;
+ *.$objext)
+ staticdest=$destfile
+ destfile=
+ ;;
+ *)
+ func_fatal_help "cannot copy a libtool object to '$destfile'"
+ ;;
+ esac
+
+ # Install the libtool object if requested.
+ test -n "$destfile" && \
+ func_show_eval "$install_prog $file $destfile" 'exit $?'
+
+ # Install the old object if enabled.
+ if test yes = "$build_old_libs"; then
+ # Deduce the name of the old-style object file.
+ func_lo2o "$file"
+ staticobj=$func_lo2o_result
+ func_show_eval "$install_prog \$staticobj \$staticdest" 'exit $?'
+ fi
+ exit $EXIT_SUCCESS
+ ;;
+
+ *)
+ # Figure out destination file name, if it wasn't already specified.
+ if test -n "$destname"; then
+ destfile=$destdir/$destname
+ else
+ func_basename "$file"
+ destfile=$func_basename_result
+ destfile=$destdir/$destfile
+ fi
+
+ # If the file is missing, and there is a .exe on the end, strip it
+ # because it is most likely a libtool script we actually want to
+ # install
+ stripped_ext=
+ case $file in
+ *.exe)
+ if test ! -f "$file"; then
+ func_stripname '' '.exe' "$file"
+ file=$func_stripname_result
+ stripped_ext=.exe
+ fi
+ ;;
+ esac
+
+ # Do a test to see if this is really a libtool program.
+ case $host in
+ *cygwin* | *mingw*)
+ if func_ltwrapper_executable_p "$file"; then
+ func_ltwrapper_scriptname "$file"
+ wrapper=$func_ltwrapper_scriptname_result
+ else
+ func_stripname '' '.exe' "$file"
+ wrapper=$func_stripname_result
+ fi
+ ;;
+ *)
+ wrapper=$file
+ ;;
+ esac
+ if func_ltwrapper_script_p "$wrapper"; then
+ notinst_deplibs=
+ relink_command=
+
+ func_source "$wrapper"
+
+ # Check the variables that should have been set.
+ test -z "$generated_by_libtool_version" && \
+ func_fatal_error "invalid libtool wrapper script '$wrapper'"
+
+ finalize=:
+ for lib in $notinst_deplibs; do
+ # Check to see that each library is installed.
+ libdir=
+ if test -f "$lib"; then
+ func_source "$lib"
+ fi
+ libfile=$libdir/`$ECHO "$lib" | $SED 's%^.*/%%g'`
+ if test -n "$libdir" && test ! -f "$libfile"; then
+ func_warning "'$lib' has not been installed in '$libdir'"
+ finalize=false
+ fi
+ done
+
+ relink_command=
+ func_source "$wrapper"
+
+ outputname=
+ if test no = "$fast_install" && test -n "$relink_command"; then
+ $opt_dry_run || {
+ if $finalize; then
+ tmpdir=`func_mktempdir`
+ func_basename "$file$stripped_ext"
+ file=$func_basename_result
+ outputname=$tmpdir/$file
+ # Replace the output file specification.
+ relink_command=`$ECHO "$relink_command" | $SED 's%@OUTPUT@%'"$outputname"'%g'`
+
+ $opt_quiet || {
+ func_quote_for_expand "$relink_command"
+ eval "func_echo $func_quote_for_expand_result"
+ }
+ if eval "$relink_command"; then :
+ else
+ func_error "error: relink '$file' with the above command before installing it"
+ $opt_dry_run || ${RM}r "$tmpdir"
+ continue
+ fi
+ file=$outputname
+ else
+ func_warning "cannot relink '$file'"
+ fi
+ }
+ else
+ # Install the binary that we compiled earlier.
+ file=`$ECHO "$file$stripped_ext" | $SED "s%\([^/]*\)$%$objdir/\1%"`
+ fi
+ fi
+
+ # remove .exe since cygwin /usr/bin/install will append another
+ # one anyway
+ case $install_prog,$host in
+ */usr/bin/install*,*cygwin*)
+ case $file:$destfile in
+ *.exe:*.exe)
+ # this is ok
+ ;;
+ *.exe:*)
+ destfile=$destfile.exe
+ ;;
+ *:*.exe)
+ func_stripname '' '.exe' "$destfile"
+ destfile=$func_stripname_result
+ ;;
+ esac
+ ;;
+ esac
+ func_show_eval "$install_prog\$stripme \$file \$destfile" 'exit $?'
+ $opt_dry_run || if test -n "$outputname"; then
+ ${RM}r "$tmpdir"
+ fi
+ ;;
+ esac
+ done
+
+ for file in $staticlibs; do
+ func_basename "$file"
+ name=$func_basename_result
+
+ # Set up the ranlib parameters.
+ oldlib=$destdir/$name
+ func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
+ tool_oldlib=$func_to_tool_file_result
+
+ func_show_eval "$install_prog \$file \$oldlib" 'exit $?'
+
+ if test -n "$stripme" && test -n "$old_striplib"; then
+ func_show_eval "$old_striplib $tool_oldlib" 'exit $?'
+ fi
+
+ # Do each command in the postinstall commands.
+ func_execute_cmds "$old_postinstall_cmds" 'exit $?'
+ done
+
+ test -n "$future_libdirs" && \
+ func_warning "remember to run '$progname --finish$future_libdirs'"
+
+ if test -n "$current_libdirs"; then
+ # Maybe just do a dry run.
+ $opt_dry_run && current_libdirs=" -n$current_libdirs"
+ exec_cmd='$SHELL "$progpath" $preserve_args --finish$current_libdirs'
+ else
+ exit $EXIT_SUCCESS
+ fi
+}
+
+test install = "$opt_mode" && func_mode_install ${1+"$@"}
+
+
+# func_generate_dlsyms outputname originator pic_p
+# Extract symbols from dlprefiles and create ${outputname}S.o with
+# a dlpreopen symbol table.
+func_generate_dlsyms ()
+{
+ $debug_cmd
+
+ my_outputname=$1
+ my_originator=$2
+ my_pic_p=${3-false}
+ my_prefix=`$ECHO "$my_originator" | $SED 's%[^a-zA-Z0-9]%_%g'`
+ my_dlsyms=
+
+ if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
+ if test -n "$NM" && test -n "$global_symbol_pipe"; then
+ my_dlsyms=${my_outputname}S.c
+ else
+ func_error "not configured to extract global symbols from dlpreopened files"
+ fi
+ fi
+
+ if test -n "$my_dlsyms"; then
+ case $my_dlsyms in
+ "") ;;
+ *.c)
+ # Discover the nlist of each of the dlfiles.
+ nlist=$output_objdir/$my_outputname.nm
+
+ func_show_eval "$RM $nlist ${nlist}S ${nlist}T"
+
+ # Parse the name list into a source file.
+ func_verbose "creating $output_objdir/$my_dlsyms"
+
+ $opt_dry_run || $ECHO > "$output_objdir/$my_dlsyms" "\
+/* $my_dlsyms - symbol resolution table for '$my_outputname' dlsym emulation. */
+/* Generated by $PROGRAM (GNU $PACKAGE) $VERSION */
+
+#ifdef __cplusplus
+extern \"C\" {
+#endif
+
+#if defined __GNUC__ && (((__GNUC__ == 4) && (__GNUC_MINOR__ >= 4)) || (__GNUC__ > 4))
+#pragma GCC diagnostic ignored \"-Wstrict-prototypes\"
+#endif
+
+/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */
+#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
+/* DATA imports from DLLs on WIN32 can't be const, because runtime
+ relocations are performed -- see ld's documentation on pseudo-relocs. */
+# define LT_DLSYM_CONST
+#elif defined __osf__
+/* This system does not cope well with relocations in const data. */
+# define LT_DLSYM_CONST
+#else
+# define LT_DLSYM_CONST const
+#endif
+
+#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0)
+
+/* External symbol declarations for the compiler. */\
+"
+
+ if test yes = "$dlself"; then
+ func_verbose "generating symbol list for '$output'"
+
+ $opt_dry_run || echo ': @PROGRAM@ ' > "$nlist"
+
+ # Add our own program objects to the symbol list.
+ progfiles=`$ECHO "$objs$old_deplibs" | $SP2NL | $SED "$lo2o" | $NL2SP`
+ for progfile in $progfiles; do
+ func_to_tool_file "$progfile" func_convert_file_msys_to_w32
+ func_verbose "extracting global C symbols from '$func_to_tool_file_result'"
+ $opt_dry_run || eval "$NM $func_to_tool_file_result | $global_symbol_pipe >> '$nlist'"
+ done
+
+ if test -n "$exclude_expsyms"; then
+ $opt_dry_run || {
+ eval '$EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T'
+ eval '$MV "$nlist"T "$nlist"'
+ }
+ fi
+
+ if test -n "$export_symbols_regex"; then
+ $opt_dry_run || {
+ eval '$EGREP -e "$export_symbols_regex" "$nlist" > "$nlist"T'
+ eval '$MV "$nlist"T "$nlist"'
+ }
+ fi
+
+ # Prepare the list of exported symbols
+ if test -z "$export_symbols"; then
+ export_symbols=$output_objdir/$outputname.exp
+ $opt_dry_run || {
+ $RM $export_symbols
+ eval "$SED -n -e '/^: @PROGRAM@ $/d' -e 's/^.* \(.*\)$/\1/p' "'< "$nlist" > "$export_symbols"'
+ case $host in
+ *cygwin* | *mingw* | *cegcc* )
+ eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
+ eval 'cat "$export_symbols" >> "$output_objdir/$outputname.def"'
+ ;;
+ esac
+ }
+ else
+ $opt_dry_run || {
+ eval "$SED -e 's/\([].[*^$]\)/\\\\\1/g' -e 's/^/ /' -e 's/$/$/'"' < "$export_symbols" > "$output_objdir/$outputname.exp"'
+ eval '$GREP -f "$output_objdir/$outputname.exp" < "$nlist" > "$nlist"T'
+ eval '$MV "$nlist"T "$nlist"'
+ case $host in
+ *cygwin* | *mingw* | *cegcc* )
+ eval "echo EXPORTS "'> "$output_objdir/$outputname.def"'
+ eval 'cat "$nlist" >> "$output_objdir/$outputname.def"'
+ ;;
+ esac
+ }
+ fi
+ fi
+
+ for dlprefile in $dlprefiles; do
+ func_verbose "extracting global C symbols from '$dlprefile'"
+ func_basename "$dlprefile"
+ name=$func_basename_result
+ case $host in
+ *cygwin* | *mingw* | *cegcc* )
+ # if an import library, we need to obtain dlname
+ if func_win32_import_lib_p "$dlprefile"; then
+ func_tr_sh "$dlprefile"
+ eval "curr_lafile=\$libfile_$func_tr_sh_result"
+ dlprefile_dlbasename=
+ if test -n "$curr_lafile" && func_lalib_p "$curr_lafile"; then
+ # Use subshell, to avoid clobbering current variable values
+ dlprefile_dlname=`source "$curr_lafile" && echo "$dlname"`
+ if test -n "$dlprefile_dlname"; then
+ func_basename "$dlprefile_dlname"
+ dlprefile_dlbasename=$func_basename_result
+ else
+ # no lafile. user explicitly requested -dlpreopen <import library>.
+ $sharedlib_from_linklib_cmd "$dlprefile"
+ dlprefile_dlbasename=$sharedlib_from_linklib_result
+ fi
+ fi
+ $opt_dry_run || {
+ if test -n "$dlprefile_dlbasename"; then
+ eval '$ECHO ": $dlprefile_dlbasename" >> "$nlist"'
+ else
+ func_warning "Could not compute DLL name from $name"
+ eval '$ECHO ": $name " >> "$nlist"'
+ fi
+ func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+ eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe |
+ $SED -e '/I __imp/d' -e 's/I __nm_/D /;s/_nm__//' >> '$nlist'"
+ }
+ else # not an import lib
+ $opt_dry_run || {
+ eval '$ECHO ": $name " >> "$nlist"'
+ func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+ eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
+ }
+ fi
+ ;;
+ *)
+ $opt_dry_run || {
+ eval '$ECHO ": $name " >> "$nlist"'
+ func_to_tool_file "$dlprefile" func_convert_file_msys_to_w32
+ eval "$NM \"$func_to_tool_file_result\" 2>/dev/null | $global_symbol_pipe >> '$nlist'"
+ }
+ ;;
+ esac
+ done
+
+ $opt_dry_run || {
+ # Make sure we have at least an empty file.
+ test -f "$nlist" || : > "$nlist"
+
+ if test -n "$exclude_expsyms"; then
+ $EGREP -v " ($exclude_expsyms)$" "$nlist" > "$nlist"T
+ $MV "$nlist"T "$nlist"
+ fi
+
+ # Try sorting and uniquifying the output.
+ if $GREP -v "^: " < "$nlist" |
+ if sort -k 3 </dev/null >/dev/null 2>&1; then
+ sort -k 3
+ else
+ sort +2
+ fi |
+ uniq > "$nlist"S; then
+ :
+ else
+ $GREP -v "^: " < "$nlist" > "$nlist"S
+ fi
+
+ if test -f "$nlist"S; then
+ eval "$global_symbol_to_cdecl"' < "$nlist"S >> "$output_objdir/$my_dlsyms"'
+ else
+ echo '/* NONE */' >> "$output_objdir/$my_dlsyms"
+ fi
+
+ func_show_eval '$RM "${nlist}I"'
+ if test -n "$global_symbol_to_import"; then
+ eval "$global_symbol_to_import"' < "$nlist"S > "$nlist"I'
+ fi
+
+ echo >> "$output_objdir/$my_dlsyms" "\
+
+/* The mapping between symbol names and symbols. */
+typedef struct {
+ const char *name;
+ void *address;
+} lt_dlsymlist;
+extern LT_DLSYM_CONST lt_dlsymlist
+lt_${my_prefix}_LTX_preloaded_symbols[];\
+"
+
+ if test -s "$nlist"I; then
+ echo >> "$output_objdir/$my_dlsyms" "\
+static void lt_syminit(void)
+{
+ LT_DLSYM_CONST lt_dlsymlist *symbol = lt_${my_prefix}_LTX_preloaded_symbols;
+ for (; symbol->name; ++symbol)
+ {"
+ $SED 's/.*/ if (STREQ (symbol->name, \"&\")) symbol->address = (void *) \&&;/' < "$nlist"I >> "$output_objdir/$my_dlsyms"
+ echo >> "$output_objdir/$my_dlsyms" "\
+ }
+}"
+ fi
+ echo >> "$output_objdir/$my_dlsyms" "\
+LT_DLSYM_CONST lt_dlsymlist
+lt_${my_prefix}_LTX_preloaded_symbols[] =
+{ {\"$my_originator\", (void *) 0},"
+
+ if test -s "$nlist"I; then
+ echo >> "$output_objdir/$my_dlsyms" "\
+ {\"@INIT@\", (void *) <_syminit},"
+ fi
+
+ case $need_lib_prefix in
+ no)
+ eval "$global_symbol_to_c_name_address" < "$nlist" >> "$output_objdir/$my_dlsyms"
+ ;;
+ *)
+ eval "$global_symbol_to_c_name_address_lib_prefix" < "$nlist" >> "$output_objdir/$my_dlsyms"
+ ;;
+ esac
+ echo >> "$output_objdir/$my_dlsyms" "\
+ {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+ return lt_${my_prefix}_LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif\
+"
+ } # !$opt_dry_run
+
+ pic_flag_for_symtable=
+ case "$compile_command " in
+ *" -static "*) ;;
+ *)
+ case $host in
+ # compiling the symbol table file with pic_flag works around
+ # a FreeBSD bug that causes programs to crash when -lm is
+ # linked before any other PIC object. But we must not use
+ # pic_flag when linking with -static. The problem exists in
+ # FreeBSD 2.2.6 and is fixed in FreeBSD 3.1.
+ *-*-freebsd2.*|*-*-freebsd3.0*|*-*-freebsdelf3.0*)
+ pic_flag_for_symtable=" $pic_flag -DFREEBSD_WORKAROUND" ;;
+ *-*-hpux*)
+ pic_flag_for_symtable=" $pic_flag" ;;
+ *)
+ $my_pic_p && pic_flag_for_symtable=" $pic_flag"
+ ;;
+ esac
+ ;;
+ esac
+ symtab_cflags=
+ for arg in $LTCFLAGS; do
+ case $arg in
+ -pie | -fpie | -fPIE) ;;
+ *) func_append symtab_cflags " $arg" ;;
+ esac
+ done
+
+ # Now compile the dynamic symbol file.
+ func_show_eval '(cd $output_objdir && $LTCC$symtab_cflags -c$no_builtin_flag$pic_flag_for_symtable "$my_dlsyms")' 'exit $?'
+
+ # Clean up the generated files.
+ func_show_eval '$RM "$output_objdir/$my_dlsyms" "$nlist" "${nlist}S" "${nlist}T" "${nlist}I"'
+
+ # Transform the symbol file into the correct name.
+ symfileobj=$output_objdir/${my_outputname}S.$objext
+ case $host in
+ *cygwin* | *mingw* | *cegcc* )
+ if test -f "$output_objdir/$my_outputname.def"; then
+ compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
+ finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$output_objdir/$my_outputname.def $symfileobj%"`
+ else
+ compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+ finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+ fi
+ ;;
+ *)
+ compile_command=`$ECHO "$compile_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+ finalize_command=`$ECHO "$finalize_command" | $SED "s%@SYMFILE@%$symfileobj%"`
+ ;;
+ esac
+ ;;
+ *)
+ func_fatal_error "unknown suffix for '$my_dlsyms'"
+ ;;
+ esac
+ else
+ # We keep going just in case the user didn't refer to
+ # lt_preloaded_symbols. The linker will fail if global_symbol_pipe
+ # really was required.
+
+ # Nullify the symbol file.
+ compile_command=`$ECHO "$compile_command" | $SED "s% @SYMFILE@%%"`
+ finalize_command=`$ECHO "$finalize_command" | $SED "s% @SYMFILE@%%"`
+ fi
+}
+
+# func_cygming_gnu_implib_p ARG
+# This predicate returns with zero status (TRUE) if
+# ARG is a GNU/binutils-style import library. Returns
+# with nonzero status (FALSE) otherwise.
+func_cygming_gnu_implib_p ()
+{
+ $debug_cmd
+
+ func_to_tool_file "$1" func_convert_file_msys_to_w32
+ func_cygming_gnu_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $EGREP ' (_head_[A-Za-z0-9_]+_[ad]l*|[A-Za-z0-9_]+_[ad]l*_iname)$'`
+ test -n "$func_cygming_gnu_implib_tmp"
+}
+
+# func_cygming_ms_implib_p ARG
+# This predicate returns with zero status (TRUE) if
+# ARG is an MS-style import library. Returns
+# with nonzero status (FALSE) otherwise.
+func_cygming_ms_implib_p ()
+{
+ $debug_cmd
+
+ func_to_tool_file "$1" func_convert_file_msys_to_w32
+ func_cygming_ms_implib_tmp=`$NM "$func_to_tool_file_result" | eval "$global_symbol_pipe" | $GREP '_NULL_IMPORT_DESCRIPTOR'`
+ test -n "$func_cygming_ms_implib_tmp"
+}
+
+# func_win32_libid arg
+# return the library type of file 'arg'
+#
+# Need a lot of goo to handle *both* DLLs and import libs
+# Has to be a shell function in order to 'eat' the argument
+# that is supplied when $file_magic_command is called.
+# Despite the name, also deal with 64 bit binaries.
+func_win32_libid ()
+{
+ $debug_cmd
+
+ win32_libid_type=unknown
+ win32_fileres=`file -L $1 2>/dev/null`
+ case $win32_fileres in
+ *ar\ archive\ import\ library*) # definitely import
+ win32_libid_type="x86 archive import"
+ ;;
+ *ar\ archive*) # could be an import, or static
+ # Keep the egrep pattern in sync with the one in _LT_CHECK_MAGIC_METHOD.
+ if eval $OBJDUMP -f $1 | $SED -e '10q' 2>/dev/null |
+ $EGREP 'file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)' >/dev/null; then
+ case $nm_interface in
+ "MS dumpbin")
+ if func_cygming_ms_implib_p "$1" ||
+ func_cygming_gnu_implib_p "$1"
+ then
+ win32_nmres=import
+ else
+ win32_nmres=
+ fi
+ ;;
+ *)
+ func_to_tool_file "$1" func_convert_file_msys_to_w32
+ win32_nmres=`eval $NM -f posix -A \"$func_to_tool_file_result\" |
+ $SED -n -e '
+ 1,100{
+ / I /{
+ s|.*|import|
+ p
+ q
+ }
+ }'`
+ ;;
+ esac
+ case $win32_nmres in
+ import*) win32_libid_type="x86 archive import";;
+ *) win32_libid_type="x86 archive static";;
+ esac
+ fi
+ ;;
+ *DLL*)
+ win32_libid_type="x86 DLL"
+ ;;
+ *executable*) # but shell scripts are "executable" too...
+ case $win32_fileres in
+ *MS\ Windows\ PE\ Intel*)
+ win32_libid_type="x86 DLL"
+ ;;
+ esac
+ ;;
+ esac
+ $ECHO "$win32_libid_type"
+}
+
+# func_cygming_dll_for_implib ARG
+#
+# Platform-specific function to extract the
+# name of the DLL associated with the specified
+# import library ARG.
+# Invoked by eval'ing the libtool variable
+# $sharedlib_from_linklib_cmd
+# Result is available in the variable
+# $sharedlib_from_linklib_result
+func_cygming_dll_for_implib ()
+{
+ $debug_cmd
+
+ sharedlib_from_linklib_result=`$DLLTOOL --identify-strict --identify "$1"`
+}
+
+# func_cygming_dll_for_implib_fallback_core SECTION_NAME LIBNAMEs
+#
+# The is the core of a fallback implementation of a
+# platform-specific function to extract the name of the
+# DLL associated with the specified import library LIBNAME.
+#
+# SECTION_NAME is either .idata$6 or .idata$7, depending
+# on the platform and compiler that created the implib.
+#
+# Echos the name of the DLL associated with the
+# specified import library.
+func_cygming_dll_for_implib_fallback_core ()
+{
+ $debug_cmd
+
+ match_literal=`$ECHO "$1" | $SED "$sed_make_literal_regex"`
+ $OBJDUMP -s --section "$1" "$2" 2>/dev/null |
+ $SED '/^Contents of section '"$match_literal"':/{
+ # Place marker at beginning of archive member dllname section
+ s/.*/====MARK====/
+ p
+ d
+ }
+ # These lines can sometimes be longer than 43 characters, but
+ # are always uninteresting
+ /:[ ]*file format pe[i]\{,1\}-/d
+ /^In archive [^:]*:/d
+ # Ensure marker is printed
+ /^====MARK====/p
+ # Remove all lines with less than 43 characters
+ /^.\{43\}/!d
+ # From remaining lines, remove first 43 characters
+ s/^.\{43\}//' |
+ $SED -n '
+ # Join marker and all lines until next marker into a single line
+ /^====MARK====/ b para
+ H
+ $ b para
+ b
+ :para
+ x
+ s/\n//g
+ # Remove the marker
+ s/^====MARK====//
+ # Remove trailing dots and whitespace
+ s/[\. \t]*$//
+ # Print
+ /./p' |
+ # we now have a list, one entry per line, of the stringified
+ # contents of the appropriate section of all members of the
+ # archive that possess that section. Heuristic: eliminate
+ # all those that have a first or second character that is
+ # a '.' (that is, objdump's representation of an unprintable
+ # character.) This should work for all archives with less than
+ # 0x302f exports -- but will fail for DLLs whose name actually
+ # begins with a literal '.' or a single character followed by
+ # a '.'.
+ #
+ # Of those that remain, print the first one.
+ $SED -e '/^\./d;/^.\./d;q'
+}
+
+# func_cygming_dll_for_implib_fallback ARG
+# Platform-specific function to extract the
+# name of the DLL associated with the specified
+# import library ARG.
+#
+# This fallback implementation is for use when $DLLTOOL
+# does not support the --identify-strict option.
+# Invoked by eval'ing the libtool variable
+# $sharedlib_from_linklib_cmd
+# Result is available in the variable
+# $sharedlib_from_linklib_result
+func_cygming_dll_for_implib_fallback ()
+{
+ $debug_cmd
+
+ if func_cygming_gnu_implib_p "$1"; then
+ # binutils import library
+ sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$7' "$1"`
+ elif func_cygming_ms_implib_p "$1"; then
+ # ms-generated import library
+ sharedlib_from_linklib_result=`func_cygming_dll_for_implib_fallback_core '.idata$6' "$1"`
+ else
+ # unknown
+ sharedlib_from_linklib_result=
+ fi
+}
+
+
+# func_extract_an_archive dir oldlib
+func_extract_an_archive ()
+{
+ $debug_cmd
+
+ f_ex_an_ar_dir=$1; shift
+ f_ex_an_ar_oldlib=$1
+ if test yes = "$lock_old_archive_extraction"; then
+ lockfile=$f_ex_an_ar_oldlib.lock
+ until $opt_dry_run || ln "$progpath" "$lockfile" 2>/dev/null; do
+ func_echo "Waiting for $lockfile to be removed"
+ sleep 2
+ done
+ fi
+ func_show_eval "(cd \$f_ex_an_ar_dir && $AR x \"\$f_ex_an_ar_oldlib\")" \
+ 'stat=$?; rm -f "$lockfile"; exit $stat'
+ if test yes = "$lock_old_archive_extraction"; then
+ $opt_dry_run || rm -f "$lockfile"
+ fi
+ if ($AR t "$f_ex_an_ar_oldlib" | sort | sort -uc >/dev/null 2>&1); then
+ :
+ else
+ func_fatal_error "object name conflicts in archive: $f_ex_an_ar_dir/$f_ex_an_ar_oldlib"
+ fi
+}
+
+
+# func_extract_archives gentop oldlib ...
+func_extract_archives ()
+{
+ $debug_cmd
+
+ my_gentop=$1; shift
+ my_oldlibs=${1+"$@"}
+ my_oldobjs=
+ my_xlib=
+ my_xabs=
+ my_xdir=
+
+ for my_xlib in $my_oldlibs; do
+ # Extract the objects.
+ case $my_xlib in
+ [\\/]* | [A-Za-z]:[\\/]*) my_xabs=$my_xlib ;;
+ *) my_xabs=`pwd`"/$my_xlib" ;;
+ esac
+ func_basename "$my_xlib"
+ my_xlib=$func_basename_result
+ my_xlib_u=$my_xlib
+ while :; do
+ case " $extracted_archives " in
+ *" $my_xlib_u "*)
+ func_arith $extracted_serial + 1
+ extracted_serial=$func_arith_result
+ my_xlib_u=lt$extracted_serial-$my_xlib ;;
+ *) break ;;
+ esac
+ done
+ extracted_archives="$extracted_archives $my_xlib_u"
+ my_xdir=$my_gentop/$my_xlib_u
+
+ func_mkdir_p "$my_xdir"
+
+ case $host in
+ *-darwin*)
+ func_verbose "Extracting $my_xabs"
+ # Do not bother doing anything if just a dry run
+ $opt_dry_run || {
+ darwin_orig_dir=`pwd`
+ cd $my_xdir || exit $?
+ darwin_archive=$my_xabs
+ darwin_curdir=`pwd`
+ func_basename "$darwin_archive"
+ darwin_base_archive=$func_basename_result
+ darwin_arches=`$LIPO -info "$darwin_archive" 2>/dev/null | $GREP Architectures 2>/dev/null || true`
+ if test -n "$darwin_arches"; then
+ darwin_arches=`$ECHO "$darwin_arches" | $SED -e 's/.*are://'`
+ darwin_arch=
+ func_verbose "$darwin_base_archive has multiple architectures $darwin_arches"
+ for darwin_arch in $darwin_arches; do
+ func_mkdir_p "unfat-$$/$darwin_base_archive-$darwin_arch"
+ $LIPO -thin $darwin_arch -output "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive" "$darwin_archive"
+ cd "unfat-$$/$darwin_base_archive-$darwin_arch"
+ func_extract_an_archive "`pwd`" "$darwin_base_archive"
+ cd "$darwin_curdir"
+ $RM "unfat-$$/$darwin_base_archive-$darwin_arch/$darwin_base_archive"
+ done # $darwin_arches
+ ## Okay now we've a bunch of thin objects, gotta fatten them up :)
+ darwin_filelist=`find unfat-$$ -type f -name \*.o -print -o -name \*.lo -print | $SED -e "$sed_basename" | sort -u`
+ darwin_file=
+ darwin_files=
+ for darwin_file in $darwin_filelist; do
+ darwin_files=`find unfat-$$ -name $darwin_file -print | sort | $NL2SP`
+ $LIPO -create -output "$darwin_file" $darwin_files
+ done # $darwin_filelist
+ $RM -rf unfat-$$
+ cd "$darwin_orig_dir"
+ else
+ cd $darwin_orig_dir
+ func_extract_an_archive "$my_xdir" "$my_xabs"
+ fi # $darwin_arches
+ } # !$opt_dry_run
+ ;;
+ *)
+ func_extract_an_archive "$my_xdir" "$my_xabs"
+ ;;
+ esac
+ my_oldobjs="$my_oldobjs "`find $my_xdir -name \*.$objext -print -o -name \*.lo -print | sort | $NL2SP`
+ done
+
+ func_extract_archives_result=$my_oldobjs
+}
+
+
+# func_emit_wrapper [arg=no]
+#
+# Emit a libtool wrapper script on stdout.
+# Don't directly open a file because we may want to
+# incorporate the script contents within a cygwin/mingw
+# wrapper executable. Must ONLY be called from within
+# func_mode_link because it depends on a number of variables
+# set therein.
+#
+# ARG is the value that the WRAPPER_SCRIPT_BELONGS_IN_OBJDIR
+# variable will take. If 'yes', then the emitted script
+# will assume that the directory where it is stored is
+# the $objdir directory. This is a cygwin/mingw-specific
+# behavior.
+func_emit_wrapper ()
+{
+ func_emit_wrapper_arg1=${1-no}
+
+ $ECHO "\
+#! $SHELL
+
+# $output - temporary wrapper script for $objdir/$outputname
+# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
+#
+# The $output program cannot be directly executed until all the libtool
+# libraries that it depends on are installed.
+#
+# This wrapper script should never be moved out of the build directory.
+# If it is, it will not operate correctly.
+
+# Sed substitution that helps us do robust quoting. It backslashifies
+# metacharacters that are still active within double-quoted strings.
+sed_quote_subst='$sed_quote_subst'
+
+# Be Bourne compatible
+if test -n \"\${ZSH_VERSION+set}\" && (emulate sh) >/dev/null 2>&1; then
+ emulate sh
+ NULLCMD=:
+ # Zsh 3.x and 4.x performs word splitting on \${1+\"\$@\"}, which
+ # is contrary to our usage. Disable this feature.
+ alias -g '\${1+\"\$@\"}'='\"\$@\"'
+ setopt NO_GLOB_SUBST
+else
+ case \`(set -o) 2>/dev/null\` in *posix*) set -o posix;; esac
+fi
+BIN_SH=xpg4; export BIN_SH # for Tru64
+DUALCASE=1; export DUALCASE # for MKS sh
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+relink_command=\"$relink_command\"
+
+# This environment variable determines our operation mode.
+if test \"\$libtool_install_magic\" = \"$magic\"; then
+ # install mode needs the following variables:
+ generated_by_libtool_version='$macro_version'
+ notinst_deplibs='$notinst_deplibs'
+else
+ # When we are sourced in execute mode, \$file and \$ECHO are already set.
+ if test \"\$libtool_execute_magic\" != \"$magic\"; then
+ file=\"\$0\""
+
+ qECHO=`$ECHO "$ECHO" | $SED "$sed_quote_subst"`
+ $ECHO "\
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+ eval 'cat <<_LTECHO_EOF
+\$1
+_LTECHO_EOF'
+}
+ ECHO=\"$qECHO\"
+ fi
+
+# Very basic option parsing. These options are (a) specific to
+# the libtool wrapper, (b) are identical between the wrapper
+# /script/ and the wrapper /executable/ that is used only on
+# windows platforms, and (c) all begin with the string "--lt-"
+# (application programs are unlikely to have options that match
+# this pattern).
+#
+# There are only two supported options: --lt-debug and
+# --lt-dump-script. There is, deliberately, no --lt-help.
+#
+# The first argument to this parsing function should be the
+# script's $0 value, followed by "$@".
+lt_option_debug=
+func_parse_lt_options ()
+{
+ lt_script_arg0=\$0
+ shift
+ for lt_opt
+ do
+ case \"\$lt_opt\" in
+ --lt-debug) lt_option_debug=1 ;;
+ --lt-dump-script)
+ lt_dump_D=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%/[^/]*$%%'\`
+ test \"X\$lt_dump_D\" = \"X\$lt_script_arg0\" && lt_dump_D=.
+ lt_dump_F=\`\$ECHO \"X\$lt_script_arg0\" | $SED -e 's/^X//' -e 's%^.*/%%'\`
+ cat \"\$lt_dump_D/\$lt_dump_F\"
+ exit 0
+ ;;
+ --lt-*)
+ \$ECHO \"Unrecognized --lt- option: '\$lt_opt'\" 1>&2
+ exit 1
+ ;;
+ esac
+ done
+
+ # Print the debug banner immediately:
+ if test -n \"\$lt_option_debug\"; then
+ echo \"$outputname:$output:\$LINENO: libtool wrapper (GNU $PACKAGE) $VERSION\" 1>&2
+ fi
+}
+
+# Used when --lt-debug. Prints its arguments to stdout
+# (redirection is the responsibility of the caller)
+func_lt_dump_args ()
+{
+ lt_dump_args_N=1;
+ for lt_arg
+ do
+ \$ECHO \"$outputname:$output:\$LINENO: newargv[\$lt_dump_args_N]: \$lt_arg\"
+ lt_dump_args_N=\`expr \$lt_dump_args_N + 1\`
+ done
+}
+
+# Core function for launching the target application
+func_exec_program_core ()
+{
+"
+ case $host in
+ # Backslashes separate directories on plain windows
+ *-*-mingw | *-*-os2* | *-cegcc*)
+ $ECHO "\
+ if test -n \"\$lt_option_debug\"; then
+ \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir\\\\\$program\" 1>&2
+ func_lt_dump_args \${1+\"\$@\"} 1>&2
+ fi
+ exec \"\$progdir\\\\\$program\" \${1+\"\$@\"}
+"
+ ;;
+
+ *)
+ $ECHO "\
+ if test -n \"\$lt_option_debug\"; then
+ \$ECHO \"$outputname:$output:\$LINENO: newargv[0]: \$progdir/\$program\" 1>&2
+ func_lt_dump_args \${1+\"\$@\"} 1>&2
+ fi
+ exec \"\$progdir/\$program\" \${1+\"\$@\"}
+"
+ ;;
+ esac
+ $ECHO "\
+ \$ECHO \"\$0: cannot exec \$program \$*\" 1>&2
+ exit 1
+}
+
+# A function to encapsulate launching the target application
+# Strips options in the --lt-* namespace from \$@ and
+# launches target application with the remaining arguments.
+func_exec_program ()
+{
+ case \" \$* \" in
+ *\\ --lt-*)
+ for lt_wr_arg
+ do
+ case \$lt_wr_arg in
+ --lt-*) ;;
+ *) set x \"\$@\" \"\$lt_wr_arg\"; shift;;
+ esac
+ shift
+ done ;;
+ esac
+ func_exec_program_core \${1+\"\$@\"}
+}
+
+ # Parse options
+ func_parse_lt_options \"\$0\" \${1+\"\$@\"}
+
+ # Find the directory that this script lives in.
+ thisdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*$%%'\`
+ test \"x\$thisdir\" = \"x\$file\" && thisdir=.
+
+ # Follow symbolic links until we get to the real thisdir.
+ file=\`ls -ld \"\$file\" | $SED -n 's/.*-> //p'\`
+ while test -n \"\$file\"; do
+ destdir=\`\$ECHO \"\$file\" | $SED 's%/[^/]*\$%%'\`
+
+ # If there was a directory component, then change thisdir.
+ if test \"x\$destdir\" != \"x\$file\"; then
+ case \"\$destdir\" in
+ [\\\\/]* | [A-Za-z]:[\\\\/]*) thisdir=\"\$destdir\" ;;
+ *) thisdir=\"\$thisdir/\$destdir\" ;;
+ esac
+ fi
+
+ file=\`\$ECHO \"\$file\" | $SED 's%^.*/%%'\`
+ file=\`ls -ld \"\$thisdir/\$file\" | $SED -n 's/.*-> //p'\`
+ done
+
+ # Usually 'no', except on cygwin/mingw when embedded into
+ # the cwrapper.
+ WRAPPER_SCRIPT_BELONGS_IN_OBJDIR=$func_emit_wrapper_arg1
+ if test \"\$WRAPPER_SCRIPT_BELONGS_IN_OBJDIR\" = \"yes\"; then
+ # special case for '.'
+ if test \"\$thisdir\" = \".\"; then
+ thisdir=\`pwd\`
+ fi
+ # remove .libs from thisdir
+ case \"\$thisdir\" in
+ *[\\\\/]$objdir ) thisdir=\`\$ECHO \"\$thisdir\" | $SED 's%[\\\\/][^\\\\/]*$%%'\` ;;
+ $objdir ) thisdir=. ;;
+ esac
+ fi
+
+ # Try to get the absolute directory name.
+ absdir=\`cd \"\$thisdir\" && pwd\`
+ test -n \"\$absdir\" && thisdir=\"\$absdir\"
+"
+
+ if test yes = "$fast_install"; then
+ $ECHO "\
+ program=lt-'$outputname'$exeext
+ progdir=\"\$thisdir/$objdir\"
+
+ if test ! -f \"\$progdir/\$program\" ||
+ { file=\`ls -1dt \"\$progdir/\$program\" \"\$progdir/../\$program\" 2>/dev/null | $SED 1q\`; \\
+ test \"X\$file\" != \"X\$progdir/\$program\"; }; then
+
+ file=\"\$\$-\$program\"
+
+ if test ! -d \"\$progdir\"; then
+ $MKDIR \"\$progdir\"
+ else
+ $RM \"\$progdir/\$file\"
+ fi"
+
+ $ECHO "\
+
+ # relink executable if necessary
+ if test -n \"\$relink_command\"; then
+ if relink_command_output=\`eval \$relink_command 2>&1\`; then :
+ else
+ \$ECHO \"\$relink_command_output\" >&2
+ $RM \"\$progdir/\$file\"
+ exit 1
+ fi
+ fi
+
+ $MV \"\$progdir/\$file\" \"\$progdir/\$program\" 2>/dev/null ||
+ { $RM \"\$progdir/\$program\";
+ $MV \"\$progdir/\$file\" \"\$progdir/\$program\"; }
+ $RM \"\$progdir/\$file\"
+ fi"
+ else
+ $ECHO "\
+ program='$outputname'
+ progdir=\"\$thisdir/$objdir\"
+"
+ fi
+
+ $ECHO "\
+
+ if test -f \"\$progdir/\$program\"; then"
+
+ # fixup the dll searchpath if we need to.
+ #
+ # Fix the DLL searchpath if we need to. Do this before prepending
+ # to shlibpath, because on Windows, both are PATH and uninstalled
+ # libraries must come first.
+ if test -n "$dllsearchpath"; then
+ $ECHO "\
+ # Add the dll search path components to the executable PATH
+ PATH=$dllsearchpath:\$PATH
+"
+ fi
+
+ # Export our shlibpath_var if we have one.
+ if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
+ $ECHO "\
+ # Add our own library path to $shlibpath_var
+ $shlibpath_var=\"$temp_rpath\$$shlibpath_var\"
+
+ # Some systems cannot cope with colon-terminated $shlibpath_var
+ # The second colon is a workaround for a bug in BeOS R4 sed
+ $shlibpath_var=\`\$ECHO \"\$$shlibpath_var\" | $SED 's/::*\$//'\`
+
+ export $shlibpath_var
+"
+ fi
+
+ $ECHO "\
+ if test \"\$libtool_execute_magic\" != \"$magic\"; then
+ # Run the actual program with our arguments.
+ func_exec_program \${1+\"\$@\"}
+ fi
+ else
+ # The program doesn't exist.
+ \$ECHO \"\$0: error: '\$progdir/\$program' does not exist\" 1>&2
+ \$ECHO \"This script is just a wrapper for \$program.\" 1>&2
+ \$ECHO \"See the $PACKAGE documentation for more information.\" 1>&2
+ exit 1
+ fi
+fi\
+"
+}
+
+
+# func_emit_cwrapperexe_src
+# emit the source code for a wrapper executable on stdout
+# Must ONLY be called from within func_mode_link because
+# it depends on a number of variable set therein.
+func_emit_cwrapperexe_src ()
+{
+ cat <<EOF
+
+/* $cwrappersource - temporary wrapper executable for $objdir/$outputname
+ Generated by $PROGRAM (GNU $PACKAGE) $VERSION
+
+ The $output program cannot be directly executed until all the libtool
+ libraries that it depends on are installed.
+
+ This wrapper executable should never be moved out of the build directory.
+ If it is, it will not operate correctly.
+*/
+EOF
+ cat <<"EOF"
+#ifdef _MSC_VER
+# define _CRT_SECURE_NO_DEPRECATE 1
+#endif
+#include <stdio.h>
+#include <stdlib.h>
+#ifdef _MSC_VER
+# include <direct.h>
+# include <process.h>
+# include <io.h>
+#else
+# include <unistd.h>
+# include <stdint.h>
+# ifdef __CYGWIN__
+# include <io.h>
+# endif
+#endif
+#include <malloc.h>
+#include <stdarg.h>
+#include <assert.h>
+#include <string.h>
+#include <ctype.h>
+#include <errno.h>
+#include <fcntl.h>
+#include <sys/stat.h>
+
+#define STREQ(s1, s2) (strcmp ((s1), (s2)) == 0)
+
+/* declarations of non-ANSI functions */
+#if defined __MINGW32__
+# ifdef __STRICT_ANSI__
+int _putenv (const char *);
+# endif
+#elif defined __CYGWIN__
+# ifdef __STRICT_ANSI__
+char *realpath (const char *, char *);
+int putenv (char *);
+int setenv (const char *, const char *, int);
+# endif
+/* #elif defined other_platform || defined ... */
+#endif
+
+/* portability defines, excluding path handling macros */
+#if defined _MSC_VER
+# define setmode _setmode
+# define stat _stat
+# define chmod _chmod
+# define getcwd _getcwd
+# define putenv _putenv
+# define S_IXUSR _S_IEXEC
+#elif defined __MINGW32__
+# define setmode _setmode
+# define stat _stat
+# define chmod _chmod
+# define getcwd _getcwd
+# define putenv _putenv
+#elif defined __CYGWIN__
+# define HAVE_SETENV
+# define FOPEN_WB "wb"
+/* #elif defined other platforms ... */
+#endif
+
+#if defined PATH_MAX
+# define LT_PATHMAX PATH_MAX
+#elif defined MAXPATHLEN
+# define LT_PATHMAX MAXPATHLEN
+#else
+# define LT_PATHMAX 1024
+#endif
+
+#ifndef S_IXOTH
+# define S_IXOTH 0
+#endif
+#ifndef S_IXGRP
+# define S_IXGRP 0
+#endif
+
+/* path handling portability macros */
+#ifndef DIR_SEPARATOR
+# define DIR_SEPARATOR '/'
+# define PATH_SEPARATOR ':'
+#endif
+
+#if defined _WIN32 || defined __MSDOS__ || defined __DJGPP__ || \
+ defined __OS2__
+# define HAVE_DOS_BASED_FILE_SYSTEM
+# define FOPEN_WB "wb"
+# ifndef DIR_SEPARATOR_2
+# define DIR_SEPARATOR_2 '\\'
+# endif
+# ifndef PATH_SEPARATOR_2
+# define PATH_SEPARATOR_2 ';'
+# endif
+#endif
+
+#ifndef DIR_SEPARATOR_2
+# define IS_DIR_SEPARATOR(ch) ((ch) == DIR_SEPARATOR)
+#else /* DIR_SEPARATOR_2 */
+# define IS_DIR_SEPARATOR(ch) \
+ (((ch) == DIR_SEPARATOR) || ((ch) == DIR_SEPARATOR_2))
+#endif /* DIR_SEPARATOR_2 */
+
+#ifndef PATH_SEPARATOR_2
+# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR)
+#else /* PATH_SEPARATOR_2 */
+# define IS_PATH_SEPARATOR(ch) ((ch) == PATH_SEPARATOR_2)
+#endif /* PATH_SEPARATOR_2 */
+
+#ifndef FOPEN_WB
+# define FOPEN_WB "w"
+#endif
+#ifndef _O_BINARY
+# define _O_BINARY 0
+#endif
+
+#define XMALLOC(type, num) ((type *) xmalloc ((num) * sizeof(type)))
+#define XFREE(stale) do { \
+ if (stale) { free (stale); stale = 0; } \
+} while (0)
+
+#if defined LT_DEBUGWRAPPER
+static int lt_debug = 1;
+#else
+static int lt_debug = 0;
+#endif
+
+const char *program_name = "libtool-wrapper"; /* in case xstrdup fails */
+
+void *xmalloc (size_t num);
+char *xstrdup (const char *string);
+const char *base_name (const char *name);
+char *find_executable (const char *wrapper);
+char *chase_symlinks (const char *pathspec);
+int make_executable (const char *path);
+int check_executable (const char *path);
+char *strendzap (char *str, const char *pat);
+void lt_debugprintf (const char *file, int line, const char *fmt, ...);
+void lt_fatal (const char *file, int line, const char *message, ...);
+static const char *nonnull (const char *s);
+static const char *nonempty (const char *s);
+void lt_setenv (const char *name, const char *value);
+char *lt_extend_str (const char *orig_value, const char *add, int to_end);
+void lt_update_exe_path (const char *name, const char *value);
+void lt_update_lib_path (const char *name, const char *value);
+char **prepare_spawn (char **argv);
+void lt_dump_script (FILE *f);
+EOF
+
+ cat <<EOF
+#if __GNUC__ < 4 || (__GNUC__ == 4 && __GNUC_MINOR__ < 5)
+# define externally_visible volatile
+#else
+# define externally_visible __attribute__((externally_visible)) volatile
+#endif
+externally_visible const char * MAGIC_EXE = "$magic_exe";
+const char * LIB_PATH_VARNAME = "$shlibpath_var";
+EOF
+
+ if test yes = "$shlibpath_overrides_runpath" && test -n "$shlibpath_var" && test -n "$temp_rpath"; then
+ func_to_host_path "$temp_rpath"
+ cat <<EOF
+const char * LIB_PATH_VALUE = "$func_to_host_path_result";
+EOF
+ else
+ cat <<"EOF"
+const char * LIB_PATH_VALUE = "";
+EOF
+ fi
+
+ if test -n "$dllsearchpath"; then
+ func_to_host_path "$dllsearchpath:"
+ cat <<EOF
+const char * EXE_PATH_VARNAME = "PATH";
+const char * EXE_PATH_VALUE = "$func_to_host_path_result";
+EOF
+ else
+ cat <<"EOF"
+const char * EXE_PATH_VARNAME = "";
+const char * EXE_PATH_VALUE = "";
+EOF
+ fi
+
+ if test yes = "$fast_install"; then
+ cat <<EOF
+const char * TARGET_PROGRAM_NAME = "lt-$outputname"; /* hopefully, no .exe */
+EOF
+ else
+ cat <<EOF
+const char * TARGET_PROGRAM_NAME = "$outputname"; /* hopefully, no .exe */
+EOF
+ fi
+
+
+ cat <<"EOF"
+
+#define LTWRAPPER_OPTION_PREFIX "--lt-"
+
+static const char *ltwrapper_option_prefix = LTWRAPPER_OPTION_PREFIX;
+static const char *dumpscript_opt = LTWRAPPER_OPTION_PREFIX "dump-script";
+static const char *debug_opt = LTWRAPPER_OPTION_PREFIX "debug";
+
+int
+main (int argc, char *argv[])
+{
+ char **newargz;
+ int newargc;
+ char *tmp_pathspec;
+ char *actual_cwrapper_path;
+ char *actual_cwrapper_name;
+ char *target_name;
+ char *lt_argv_zero;
+ int rval = 127;
+
+ int i;
+
+ program_name = (char *) xstrdup (base_name (argv[0]));
+ newargz = XMALLOC (char *, (size_t) argc + 1);
+
+ /* very simple arg parsing; don't want to rely on getopt
+ * also, copy all non cwrapper options to newargz, except
+ * argz[0], which is handled differently
+ */
+ newargc=0;
+ for (i = 1; i < argc; i++)
+ {
+ if (STREQ (argv[i], dumpscript_opt))
+ {
+EOF
+ case $host in
+ *mingw* | *cygwin* )
+ # make stdout use "unix" line endings
+ echo " setmode(1,_O_BINARY);"
+ ;;
+ esac
+
+ cat <<"EOF"
+ lt_dump_script (stdout);
+ return 0;
+ }
+ if (STREQ (argv[i], debug_opt))
+ {
+ lt_debug = 1;
+ continue;
+ }
+ if (STREQ (argv[i], ltwrapper_option_prefix))
+ {
+ /* however, if there is an option in the LTWRAPPER_OPTION_PREFIX
+ namespace, but it is not one of the ones we know about and
+ have already dealt with, above (inluding dump-script), then
+ report an error. Otherwise, targets might begin to believe
+ they are allowed to use options in the LTWRAPPER_OPTION_PREFIX
+ namespace. The first time any user complains about this, we'll
+ need to make LTWRAPPER_OPTION_PREFIX a configure-time option
+ or a configure.ac-settable value.
+ */
+ lt_fatal (__FILE__, __LINE__,
+ "unrecognized %s option: '%s'",
+ ltwrapper_option_prefix, argv[i]);
+ }
+ /* otherwise ... */
+ newargz[++newargc] = xstrdup (argv[i]);
+ }
+ newargz[++newargc] = NULL;
+
+EOF
+ cat <<EOF
+ /* The GNU banner must be the first non-error debug message */
+ lt_debugprintf (__FILE__, __LINE__, "libtool wrapper (GNU $PACKAGE) $VERSION\n");
+EOF
+ cat <<"EOF"
+ lt_debugprintf (__FILE__, __LINE__, "(main) argv[0]: %s\n", argv[0]);
+ lt_debugprintf (__FILE__, __LINE__, "(main) program_name: %s\n", program_name);
+
+ tmp_pathspec = find_executable (argv[0]);
+ if (tmp_pathspec == NULL)
+ lt_fatal (__FILE__, __LINE__, "couldn't find %s", argv[0]);
+ lt_debugprintf (__FILE__, __LINE__,
+ "(main) found exe (before symlink chase) at: %s\n",
+ tmp_pathspec);
+
+ actual_cwrapper_path = chase_symlinks (tmp_pathspec);
+ lt_debugprintf (__FILE__, __LINE__,
+ "(main) found exe (after symlink chase) at: %s\n",
+ actual_cwrapper_path);
+ XFREE (tmp_pathspec);
+
+ actual_cwrapper_name = xstrdup (base_name (actual_cwrapper_path));
+ strendzap (actual_cwrapper_path, actual_cwrapper_name);
+
+ /* wrapper name transforms */
+ strendzap (actual_cwrapper_name, ".exe");
+ tmp_pathspec = lt_extend_str (actual_cwrapper_name, ".exe", 1);
+ XFREE (actual_cwrapper_name);
+ actual_cwrapper_name = tmp_pathspec;
+ tmp_pathspec = 0;
+
+ /* target_name transforms -- use actual target program name; might have lt- prefix */
+ target_name = xstrdup (base_name (TARGET_PROGRAM_NAME));
+ strendzap (target_name, ".exe");
+ tmp_pathspec = lt_extend_str (target_name, ".exe", 1);
+ XFREE (target_name);
+ target_name = tmp_pathspec;
+ tmp_pathspec = 0;
+
+ lt_debugprintf (__FILE__, __LINE__,
+ "(main) libtool target name: %s\n",
+ target_name);
+EOF
+
+ cat <<EOF
+ newargz[0] =
+ XMALLOC (char, (strlen (actual_cwrapper_path) +
+ strlen ("$objdir") + 1 + strlen (actual_cwrapper_name) + 1));
+ strcpy (newargz[0], actual_cwrapper_path);
+ strcat (newargz[0], "$objdir");
+ strcat (newargz[0], "/");
+EOF
+
+ cat <<"EOF"
+ /* stop here, and copy so we don't have to do this twice */
+ tmp_pathspec = xstrdup (newargz[0]);
+
+ /* do NOT want the lt- prefix here, so use actual_cwrapper_name */
+ strcat (newargz[0], actual_cwrapper_name);
+
+ /* DO want the lt- prefix here if it exists, so use target_name */
+ lt_argv_zero = lt_extend_str (tmp_pathspec, target_name, 1);
+ XFREE (tmp_pathspec);
+ tmp_pathspec = NULL;
+EOF
+
+ case $host_os in
+ mingw*)
+ cat <<"EOF"
+ {
+ char* p;
+ while ((p = strchr (newargz[0], '\\')) != NULL)
+ {
+ *p = '/';
+ }
+ while ((p = strchr (lt_argv_zero, '\\')) != NULL)
+ {
+ *p = '/';
+ }
+ }
+EOF
+ ;;
+ esac
+
+ cat <<"EOF"
+ XFREE (target_name);
+ XFREE (actual_cwrapper_path);
+ XFREE (actual_cwrapper_name);
+
+ lt_setenv ("BIN_SH", "xpg4"); /* for Tru64 */
+ lt_setenv ("DUALCASE", "1"); /* for MSK sh */
+ /* Update the DLL searchpath. EXE_PATH_VALUE ($dllsearchpath) must
+ be prepended before (that is, appear after) LIB_PATH_VALUE ($temp_rpath)
+ because on Windows, both *_VARNAMEs are PATH but uninstalled
+ libraries must come first. */
+ lt_update_exe_path (EXE_PATH_VARNAME, EXE_PATH_VALUE);
+ lt_update_lib_path (LIB_PATH_VARNAME, LIB_PATH_VALUE);
+
+ lt_debugprintf (__FILE__, __LINE__, "(main) lt_argv_zero: %s\n",
+ nonnull (lt_argv_zero));
+ for (i = 0; i < newargc; i++)
+ {
+ lt_debugprintf (__FILE__, __LINE__, "(main) newargz[%d]: %s\n",
+ i, nonnull (newargz[i]));
+ }
+
+EOF
+
+ case $host_os in
+ mingw*)
+ cat <<"EOF"
+ /* execv doesn't actually work on mingw as expected on unix */
+ newargz = prepare_spawn (newargz);
+ rval = (int) _spawnv (_P_WAIT, lt_argv_zero, (const char * const *) newargz);
+ if (rval == -1)
+ {
+ /* failed to start process */
+ lt_debugprintf (__FILE__, __LINE__,
+ "(main) failed to launch target \"%s\": %s\n",
+ lt_argv_zero, nonnull (strerror (errno)));
+ return 127;
+ }
+ return rval;
+EOF
+ ;;
+ *)
+ cat <<"EOF"
+ execv (lt_argv_zero, newargz);
+ return rval; /* =127, but avoids unused variable warning */
+EOF
+ ;;
+ esac
+
+ cat <<"EOF"
+}
+
+void *
+xmalloc (size_t num)
+{
+ void *p = (void *) malloc (num);
+ if (!p)
+ lt_fatal (__FILE__, __LINE__, "memory exhausted");
+
+ return p;
+}
+
+char *
+xstrdup (const char *string)
+{
+ return string ? strcpy ((char *) xmalloc (strlen (string) + 1),
+ string) : NULL;
+}
+
+const char *
+base_name (const char *name)
+{
+ const char *base;
+
+#if defined HAVE_DOS_BASED_FILE_SYSTEM
+ /* Skip over the disk name in MSDOS pathnames. */
+ if (isalpha ((unsigned char) name[0]) && name[1] == ':')
+ name += 2;
+#endif
+
+ for (base = name; *name; name++)
+ if (IS_DIR_SEPARATOR (*name))
+ base = name + 1;
+ return base;
+}
+
+int
+check_executable (const char *path)
+{
+ struct stat st;
+
+ lt_debugprintf (__FILE__, __LINE__, "(check_executable): %s\n",
+ nonempty (path));
+ if ((!path) || (!*path))
+ return 0;
+
+ if ((stat (path, &st) >= 0)
+ && (st.st_mode & (S_IXUSR | S_IXGRP | S_IXOTH)))
+ return 1;
+ else
+ return 0;
+}
+
+int
+make_executable (const char *path)
+{
+ int rval = 0;
+ struct stat st;
+
+ lt_debugprintf (__FILE__, __LINE__, "(make_executable): %s\n",
+ nonempty (path));
+ if ((!path) || (!*path))
+ return 0;
+
+ if (stat (path, &st) >= 0)
+ {
+ rval = chmod (path, st.st_mode | S_IXOTH | S_IXGRP | S_IXUSR);
+ }
+ return rval;
+}
+
+/* Searches for the full path of the wrapper. Returns
+ newly allocated full path name if found, NULL otherwise
+ Does not chase symlinks, even on platforms that support them.
+*/
+char *
+find_executable (const char *wrapper)
+{
+ int has_slash = 0;
+ const char *p;
+ const char *p_next;
+ /* static buffer for getcwd */
+ char tmp[LT_PATHMAX + 1];
+ size_t tmp_len;
+ char *concat_name;
+
+ lt_debugprintf (__FILE__, __LINE__, "(find_executable): %s\n",
+ nonempty (wrapper));
+
+ if ((wrapper == NULL) || (*wrapper == '\0'))
+ return NULL;
+
+ /* Absolute path? */
+#if defined HAVE_DOS_BASED_FILE_SYSTEM
+ if (isalpha ((unsigned char) wrapper[0]) && wrapper[1] == ':')
+ {
+ concat_name = xstrdup (wrapper);
+ if (check_executable (concat_name))
+ return concat_name;
+ XFREE (concat_name);
+ }
+ else
+ {
+#endif
+ if (IS_DIR_SEPARATOR (wrapper[0]))
+ {
+ concat_name = xstrdup (wrapper);
+ if (check_executable (concat_name))
+ return concat_name;
+ XFREE (concat_name);
+ }
+#if defined HAVE_DOS_BASED_FILE_SYSTEM
+ }
+#endif
+
+ for (p = wrapper; *p; p++)
+ if (*p == '/')
+ {
+ has_slash = 1;
+ break;
+ }
+ if (!has_slash)
+ {
+ /* no slashes; search PATH */
+ const char *path = getenv ("PATH");
+ if (path != NULL)
+ {
+ for (p = path; *p; p = p_next)
+ {
+ const char *q;
+ size_t p_len;
+ for (q = p; *q; q++)
+ if (IS_PATH_SEPARATOR (*q))
+ break;
+ p_len = (size_t) (q - p);
+ p_next = (*q == '\0' ? q : q + 1);
+ if (p_len == 0)
+ {
+ /* empty path: current directory */
+ if (getcwd (tmp, LT_PATHMAX) == NULL)
+ lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
+ nonnull (strerror (errno)));
+ tmp_len = strlen (tmp);
+ concat_name =
+ XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
+ memcpy (concat_name, tmp, tmp_len);
+ concat_name[tmp_len] = '/';
+ strcpy (concat_name + tmp_len + 1, wrapper);
+ }
+ else
+ {
+ concat_name =
+ XMALLOC (char, p_len + 1 + strlen (wrapper) + 1);
+ memcpy (concat_name, p, p_len);
+ concat_name[p_len] = '/';
+ strcpy (concat_name + p_len + 1, wrapper);
+ }
+ if (check_executable (concat_name))
+ return concat_name;
+ XFREE (concat_name);
+ }
+ }
+ /* not found in PATH; assume curdir */
+ }
+ /* Relative path | not found in path: prepend cwd */
+ if (getcwd (tmp, LT_PATHMAX) == NULL)
+ lt_fatal (__FILE__, __LINE__, "getcwd failed: %s",
+ nonnull (strerror (errno)));
+ tmp_len = strlen (tmp);
+ concat_name = XMALLOC (char, tmp_len + 1 + strlen (wrapper) + 1);
+ memcpy (concat_name, tmp, tmp_len);
+ concat_name[tmp_len] = '/';
+ strcpy (concat_name + tmp_len + 1, wrapper);
+
+ if (check_executable (concat_name))
+ return concat_name;
+ XFREE (concat_name);
+ return NULL;
+}
+
+char *
+chase_symlinks (const char *pathspec)
+{
+#ifndef S_ISLNK
+ return xstrdup (pathspec);
+#else
+ char buf[LT_PATHMAX];
+ struct stat s;
+ char *tmp_pathspec = xstrdup (pathspec);
+ char *p;
+ int has_symlinks = 0;
+ while (strlen (tmp_pathspec) && !has_symlinks)
+ {
+ lt_debugprintf (__FILE__, __LINE__,
+ "checking path component for symlinks: %s\n",
+ tmp_pathspec);
+ if (lstat (tmp_pathspec, &s) == 0)
+ {
+ if (S_ISLNK (s.st_mode) != 0)
+ {
+ has_symlinks = 1;
+ break;
+ }
+
+ /* search backwards for last DIR_SEPARATOR */
+ p = tmp_pathspec + strlen (tmp_pathspec) - 1;
+ while ((p > tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
+ p--;
+ if ((p == tmp_pathspec) && (!IS_DIR_SEPARATOR (*p)))
+ {
+ /* no more DIR_SEPARATORS left */
+ break;
+ }
+ *p = '\0';
+ }
+ else
+ {
+ lt_fatal (__FILE__, __LINE__,
+ "error accessing file \"%s\": %s",
+ tmp_pathspec, nonnull (strerror (errno)));
+ }
+ }
+ XFREE (tmp_pathspec);
+
+ if (!has_symlinks)
+ {
+ return xstrdup (pathspec);
+ }
+
+ tmp_pathspec = realpath (pathspec, buf);
+ if (tmp_pathspec == 0)
+ {
+ lt_fatal (__FILE__, __LINE__,
+ "could not follow symlinks for %s", pathspec);
+ }
+ return xstrdup (tmp_pathspec);
+#endif
+}
+
+char *
+strendzap (char *str, const char *pat)
+{
+ size_t len, patlen;
+
+ assert (str != NULL);
+ assert (pat != NULL);
+
+ len = strlen (str);
+ patlen = strlen (pat);
+
+ if (patlen <= len)
+ {
+ str += len - patlen;
+ if (STREQ (str, pat))
+ *str = '\0';
+ }
+ return str;
+}
+
+void
+lt_debugprintf (const char *file, int line, const char *fmt, ...)
+{
+ va_list args;
+ if (lt_debug)
+ {
+ (void) fprintf (stderr, "%s:%s:%d: ", program_name, file, line);
+ va_start (args, fmt);
+ (void) vfprintf (stderr, fmt, args);
+ va_end (args);
+ }
+}
+
+static void
+lt_error_core (int exit_status, const char *file,
+ int line, const char *mode,
+ const char *message, va_list ap)
+{
+ fprintf (stderr, "%s:%s:%d: %s: ", program_name, file, line, mode);
+ vfprintf (stderr, message, ap);
+ fprintf (stderr, ".\n");
+
+ if (exit_status >= 0)
+ exit (exit_status);
+}
+
+void
+lt_fatal (const char *file, int line, const char *message, ...)
+{
+ va_list ap;
+ va_start (ap, message);
+ lt_error_core (EXIT_FAILURE, file, line, "FATAL", message, ap);
+ va_end (ap);
+}
+
+static const char *
+nonnull (const char *s)
+{
+ return s ? s : "(null)";
+}
+
+static const char *
+nonempty (const char *s)
+{
+ return (s && !*s) ? "(empty)" : nonnull (s);
+}
+
+void
+lt_setenv (const char *name, const char *value)
+{
+ lt_debugprintf (__FILE__, __LINE__,
+ "(lt_setenv) setting '%s' to '%s'\n",
+ nonnull (name), nonnull (value));
+ {
+#ifdef HAVE_SETENV
+ /* always make a copy, for consistency with !HAVE_SETENV */
+ char *str = xstrdup (value);
+ setenv (name, str, 1);
+#else
+ size_t len = strlen (name) + 1 + strlen (value) + 1;
+ char *str = XMALLOC (char, len);
+ sprintf (str, "%s=%s", name, value);
+ if (putenv (str) != EXIT_SUCCESS)
+ {
+ XFREE (str);
+ }
+#endif
+ }
+}
+
+char *
+lt_extend_str (const char *orig_value, const char *add, int to_end)
+{
+ char *new_value;
+ if (orig_value && *orig_value)
+ {
+ size_t orig_value_len = strlen (orig_value);
+ size_t add_len = strlen (add);
+ new_value = XMALLOC (char, add_len + orig_value_len + 1);
+ if (to_end)
+ {
+ strcpy (new_value, orig_value);
+ strcpy (new_value + orig_value_len, add);
+ }
+ else
+ {
+ strcpy (new_value, add);
+ strcpy (new_value + add_len, orig_value);
+ }
+ }
+ else
+ {
+ new_value = xstrdup (add);
+ }
+ return new_value;
+}
+
+void
+lt_update_exe_path (const char *name, const char *value)
+{
+ lt_debugprintf (__FILE__, __LINE__,
+ "(lt_update_exe_path) modifying '%s' by prepending '%s'\n",
+ nonnull (name), nonnull (value));
+
+ if (name && *name && value && *value)
+ {
+ char *new_value = lt_extend_str (getenv (name), value, 0);
+ /* some systems can't cope with a ':'-terminated path #' */
+ size_t len = strlen (new_value);
+ while ((len > 0) && IS_PATH_SEPARATOR (new_value[len-1]))
+ {
+ new_value[--len] = '\0';
+ }
+ lt_setenv (name, new_value);
+ XFREE (new_value);
+ }
+}
+
+void
+lt_update_lib_path (const char *name, const char *value)
+{
+ lt_debugprintf (__FILE__, __LINE__,
+ "(lt_update_lib_path) modifying '%s' by prepending '%s'\n",
+ nonnull (name), nonnull (value));
+
+ if (name && *name && value && *value)
+ {
+ char *new_value = lt_extend_str (getenv (name), value, 0);
+ lt_setenv (name, new_value);
+ XFREE (new_value);
+ }
+}
+
+EOF
+ case $host_os in
+ mingw*)
+ cat <<"EOF"
+
+/* Prepares an argument vector before calling spawn().
+ Note that spawn() does not by itself call the command interpreter
+ (getenv ("COMSPEC") != NULL ? getenv ("COMSPEC") :
+ ({ OSVERSIONINFO v; v.dwOSVersionInfoSize = sizeof(OSVERSIONINFO);
+ GetVersionEx(&v);
+ v.dwPlatformId == VER_PLATFORM_WIN32_NT;
+ }) ? "cmd.exe" : "command.com").
+ Instead it simply concatenates the arguments, separated by ' ', and calls
+ CreateProcess(). We must quote the arguments since Win32 CreateProcess()
+ interprets characters like ' ', '\t', '\\', '"' (but not '<' and '>') in a
+ special way:
+ - Space and tab are interpreted as delimiters. They are not treated as
+ delimiters if they are surrounded by double quotes: "...".
+ - Unescaped double quotes are removed from the input. Their only effect is
+ that within double quotes, space and tab are treated like normal
+ characters.
+ - Backslashes not followed by double quotes are not special.
+ - But 2*n+1 backslashes followed by a double quote become
+ n backslashes followed by a double quote (n >= 0):
+ \" -> "
+ \\\" -> \"
+ \\\\\" -> \\"
+ */
+#define SHELL_SPECIAL_CHARS "\"\\ \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
+#define SHELL_SPACE_CHARS " \001\002\003\004\005\006\007\010\011\012\013\014\015\016\017\020\021\022\023\024\025\026\027\030\031\032\033\034\035\036\037"
+char **
+prepare_spawn (char **argv)
+{
+ size_t argc;
+ char **new_argv;
+ size_t i;
+
+ /* Count number of arguments. */
+ for (argc = 0; argv[argc] != NULL; argc++)
+ ;
+
+ /* Allocate new argument vector. */
+ new_argv = XMALLOC (char *, argc + 1);
+
+ /* Put quoted arguments into the new argument vector. */
+ for (i = 0; i < argc; i++)
+ {
+ const char *string = argv[i];
+
+ if (string[0] == '\0')
+ new_argv[i] = xstrdup ("\"\"");
+ else if (strpbrk (string, SHELL_SPECIAL_CHARS) != NULL)
+ {
+ int quote_around = (strpbrk (string, SHELL_SPACE_CHARS) != NULL);
+ size_t length;
+ unsigned int backslashes;
+ const char *s;
+ char *quoted_string;
+ char *p;
+
+ length = 0;
+ backslashes = 0;
+ if (quote_around)
+ length++;
+ for (s = string; *s != '\0'; s++)
+ {
+ char c = *s;
+ if (c == '"')
+ length += backslashes + 1;
+ length++;
+ if (c == '\\')
+ backslashes++;
+ else
+ backslashes = 0;
+ }
+ if (quote_around)
+ length += backslashes + 1;
+
+ quoted_string = XMALLOC (char, length + 1);
+
+ p = quoted_string;
+ backslashes = 0;
+ if (quote_around)
+ *p++ = '"';
+ for (s = string; *s != '\0'; s++)
+ {
+ char c = *s;
+ if (c == '"')
+ {
+ unsigned int j;
+ for (j = backslashes + 1; j > 0; j--)
+ *p++ = '\\';
+ }
+ *p++ = c;
+ if (c == '\\')
+ backslashes++;
+ else
+ backslashes = 0;
+ }
+ if (quote_around)
+ {
+ unsigned int j;
+ for (j = backslashes; j > 0; j--)
+ *p++ = '\\';
+ *p++ = '"';
+ }
+ *p = '\0';
+
+ new_argv[i] = quoted_string;
+ }
+ else
+ new_argv[i] = (char *) string;
+ }
+ new_argv[argc] = NULL;
+
+ return new_argv;
+}
+EOF
+ ;;
+ esac
+
+ cat <<"EOF"
+void lt_dump_script (FILE* f)
+{
+EOF
+ func_emit_wrapper yes |
+ $SED -n -e '
+s/^\(.\{79\}\)\(..*\)/\1\
+\2/
+h
+s/\([\\"]\)/\\\1/g
+s/$/\\n/
+s/\([^\n]*\).*/ fputs ("\1", f);/p
+g
+D'
+ cat <<"EOF"
+}
+EOF
+}
+# end: func_emit_cwrapperexe_src
+
+# func_win32_import_lib_p ARG
+# True if ARG is an import lib, as indicated by $file_magic_cmd
+func_win32_import_lib_p ()
+{
+ $debug_cmd
+
+ case `eval $file_magic_cmd \"\$1\" 2>/dev/null | $SED -e 10q` in
+ *import*) : ;;
+ *) false ;;
+ esac
+}
+
+# func_suncc_cstd_abi
+# !!ONLY CALL THIS FOR SUN CC AFTER $compile_command IS FULLY EXPANDED!!
+# Several compiler flags select an ABI that is incompatible with the
+# Cstd library. Avoid specifying it if any are in CXXFLAGS.
+func_suncc_cstd_abi ()
+{
+ $debug_cmd
+
+ case " $compile_command " in
+ *" -compat=g "*|*\ -std=c++[0-9][0-9]\ *|*" -library=stdcxx4 "*|*" -library=stlport4 "*)
+ suncc_use_cstd_abi=no
+ ;;
+ *)
+ suncc_use_cstd_abi=yes
+ ;;
+ esac
+}
+
+# func_mode_link arg...
+func_mode_link ()
+{
+ $debug_cmd
+
+ case $host in
+ *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+ # It is impossible to link a dll without this setting, and
+ # we shouldn't force the makefile maintainer to figure out
+ # what system we are compiling for in order to pass an extra
+ # flag for every libtool invocation.
+ # allow_undefined=no
+
+ # FIXME: Unfortunately, there are problems with the above when trying
+ # to make a dll that has undefined symbols, in which case not
+ # even a static library is built. For now, we need to specify
+ # -no-undefined on the libtool link line when we can be certain
+ # that all symbols are satisfied, otherwise we get a static library.
+ allow_undefined=yes
+ ;;
+ *)
+ allow_undefined=yes
+ ;;
+ esac
+ libtool_args=$nonopt
+ base_compile="$nonopt $@"
+ compile_command=$nonopt
+ finalize_command=$nonopt
+
+ compile_rpath=
+ finalize_rpath=
+ compile_shlibpath=
+ finalize_shlibpath=
+ convenience=
+ old_convenience=
+ deplibs=
+ old_deplibs=
+ compiler_flags=
+ linker_flags=
+ dllsearchpath=
+ lib_search_path=`pwd`
+ inst_prefix_dir=
+ new_inherited_linker_flags=
+
+ avoid_version=no
+ bindir=
+ dlfiles=
+ dlprefiles=
+ dlself=no
+ export_dynamic=no
+ export_symbols=
+ export_symbols_regex=
+ generated=
+ libobjs=
+ ltlibs=
+ module=no
+ no_install=no
+ objs=
+ os2dllname=
+ non_pic_objects=
+ precious_files_regex=
+ prefer_static_libs=no
+ preload=false
+ prev=
+ prevarg=
+ release=
+ rpath=
+ xrpath=
+ perm_rpath=
+ temp_rpath=
+ thread_safe=no
+ vinfo=
+ vinfo_number=no
+ weak_libs=
+ single_module=$wl-single_module
+ func_infer_tag $base_compile
+
+ # We need to know -static, to get the right output filenames.
+ for arg
+ do
+ case $arg in
+ -shared)
+ test yes != "$build_libtool_libs" \
+ && func_fatal_configuration "cannot build a shared library"
+ build_old_libs=no
+ break
+ ;;
+ -all-static | -static | -static-libtool-libs)
+ case $arg in
+ -all-static)
+ if test yes = "$build_libtool_libs" && test -z "$link_static_flag"; then
+ func_warning "complete static linking is impossible in this configuration"
+ fi
+ if test -n "$link_static_flag"; then
+ dlopen_self=$dlopen_self_static
+ fi
+ prefer_static_libs=yes
+ ;;
+ -static)
+ if test -z "$pic_flag" && test -n "$link_static_flag"; then
+ dlopen_self=$dlopen_self_static
+ fi
+ prefer_static_libs=built
+ ;;
+ -static-libtool-libs)
+ if test -z "$pic_flag" && test -n "$link_static_flag"; then
+ dlopen_self=$dlopen_self_static
+ fi
+ prefer_static_libs=yes
+ ;;
+ esac
+ build_libtool_libs=no
+ build_old_libs=yes
+ break
+ ;;
+ esac
+ done
+
+ # See if our shared archives depend on static archives.
+ test -n "$old_archive_from_new_cmds" && build_old_libs=yes
+
+ # Go through the arguments, transforming them on the way.
+ while test "$#" -gt 0; do
+ arg=$1
+ shift
+ func_quote_for_eval "$arg"
+ qarg=$func_quote_for_eval_unquoted_result
+ func_append libtool_args " $func_quote_for_eval_result"
+
+ # If the previous option needs an argument, assign it.
+ if test -n "$prev"; then
+ case $prev in
+ output)
+ func_append compile_command " @OUTPUT@"
+ func_append finalize_command " @OUTPUT@"
+ ;;
+ esac
+
+ case $prev in
+ bindir)
+ bindir=$arg
+ prev=
+ continue
+ ;;
+ dlfiles|dlprefiles)
+ $preload || {
+ # Add the symbol object into the linking commands.
+ func_append compile_command " @SYMFILE@"
+ func_append finalize_command " @SYMFILE@"
+ preload=:
+ }
+ case $arg in
+ *.la | *.lo) ;; # We handle these cases below.
+ force)
+ if test no = "$dlself"; then
+ dlself=needless
+ export_dynamic=yes
+ fi
+ prev=
+ continue
+ ;;
+ self)
+ if test dlprefiles = "$prev"; then
+ dlself=yes
+ elif test dlfiles = "$prev" && test yes != "$dlopen_self"; then
+ dlself=yes
+ else
+ dlself=needless
+ export_dynamic=yes
+ fi
+ prev=
+ continue
+ ;;
+ *)
+ if test dlfiles = "$prev"; then
+ func_append dlfiles " $arg"
+ else
+ func_append dlprefiles " $arg"
+ fi
+ prev=
+ continue
+ ;;
+ esac
+ ;;
+ expsyms)
+ export_symbols=$arg
+ test -f "$arg" \
+ || func_fatal_error "symbol file '$arg' does not exist"
+ prev=
+ continue
+ ;;
+ expsyms_regex)
+ export_symbols_regex=$arg
+ prev=
+ continue
+ ;;
+ framework)
+ case $host in
+ *-*-darwin*)
+ case "$deplibs " in
+ *" $qarg.ltframework "*) ;;
+ *) func_append deplibs " $qarg.ltframework" # this is fixed later
+ ;;
+ esac
+ ;;
+ esac
+ prev=
+ continue
+ ;;
+ inst_prefix)
+ inst_prefix_dir=$arg
+ prev=
+ continue
+ ;;
+ mllvm)
+ # Clang does not use LLVM to link, so we can simply discard any
+ # '-mllvm $arg' options when doing the link step.
+ prev=
+ continue
+ ;;
+ objectlist)
+ if test -f "$arg"; then
+ save_arg=$arg
+ moreargs=
+ for fil in `cat "$save_arg"`
+ do
+# func_append moreargs " $fil"
+ arg=$fil
+ # A libtool-controlled object.
+
+ # Check to see that this really is a libtool object.
+ if func_lalib_unsafe_p "$arg"; then
+ pic_object=
+ non_pic_object=
+
+ # Read the .lo file
+ func_source "$arg"
+
+ if test -z "$pic_object" ||
+ test -z "$non_pic_object" ||
+ test none = "$pic_object" &&
+ test none = "$non_pic_object"; then
+ func_fatal_error "cannot find name of object for '$arg'"
+ fi
+
+ # Extract subdirectory from the argument.
+ func_dirname "$arg" "/" ""
+ xdir=$func_dirname_result
+
+ if test none != "$pic_object"; then
+ # Prepend the subdirectory the object is found in.
+ pic_object=$xdir$pic_object
+
+ if test dlfiles = "$prev"; then
+ if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then
+ func_append dlfiles " $pic_object"
+ prev=
+ continue
+ else
+ # If libtool objects are unsupported, then we need to preload.
+ prev=dlprefiles
+ fi
+ fi
+
+ # CHECK ME: I think I busted this. -Ossama
+ if test dlprefiles = "$prev"; then
+ # Preload the old-style object.
+ func_append dlprefiles " $pic_object"
+ prev=
+ fi
+
+ # A PIC object.
+ func_append libobjs " $pic_object"
+ arg=$pic_object
+ fi
+
+ # Non-PIC object.
+ if test none != "$non_pic_object"; then
+ # Prepend the subdirectory the object is found in.
+ non_pic_object=$xdir$non_pic_object
+
+ # A standard non-PIC object
+ func_append non_pic_objects " $non_pic_object"
+ if test -z "$pic_object" || test none = "$pic_object"; then
+ arg=$non_pic_object
+ fi
+ else
+ # If the PIC object exists, use it instead.
+ # $xdir was prepended to $pic_object above.
+ non_pic_object=$pic_object
+ func_append non_pic_objects " $non_pic_object"
+ fi
+ else
+ # Only an error if not doing a dry-run.
+ if $opt_dry_run; then
+ # Extract subdirectory from the argument.
+ func_dirname "$arg" "/" ""
+ xdir=$func_dirname_result
+
+ func_lo2o "$arg"
+ pic_object=$xdir$objdir/$func_lo2o_result
+ non_pic_object=$xdir$func_lo2o_result
+ func_append libobjs " $pic_object"
+ func_append non_pic_objects " $non_pic_object"
+ else
+ func_fatal_error "'$arg' is not a valid libtool object"
+ fi
+ fi
+ done
+ else
+ func_fatal_error "link input file '$arg' does not exist"
+ fi
+ arg=$save_arg
+ prev=
+ continue
+ ;;
+ os2dllname)
+ os2dllname=$arg
+ prev=
+ continue
+ ;;
+ precious_regex)
+ precious_files_regex=$arg
+ prev=
+ continue
+ ;;
+ release)
+ release=-$arg
+ prev=
+ continue
+ ;;
+ rpath | xrpath)
+ # We need an absolute path.
+ case $arg in
+ [\\/]* | [A-Za-z]:[\\/]*) ;;
+ *)
+ func_fatal_error "only absolute run-paths are allowed"
+ ;;
+ esac
+ if test rpath = "$prev"; then
+ case "$rpath " in
+ *" $arg "*) ;;
+ *) func_append rpath " $arg" ;;
+ esac
+ else
+ case "$xrpath " in
+ *" $arg "*) ;;
+ *) func_append xrpath " $arg" ;;
+ esac
+ fi
+ prev=
+ continue
+ ;;
+ shrext)
+ shrext_cmds=$arg
+ prev=
+ continue
+ ;;
+ weak)
+ func_append weak_libs " $arg"
+ prev=
+ continue
+ ;;
+ xcclinker)
+ func_append linker_flags " $qarg"
+ func_append compiler_flags " $qarg"
+ prev=
+ func_append compile_command " $qarg"
+ func_append finalize_command " $qarg"
+ continue
+ ;;
+ xcompiler)
+ func_append compiler_flags " $qarg"
+ prev=
+ func_append compile_command " $qarg"
+ func_append finalize_command " $qarg"
+ continue
+ ;;
+ xlinker)
+ func_append linker_flags " $qarg"
+ func_append compiler_flags " $wl$qarg"
+ prev=
+ func_append compile_command " $wl$qarg"
+ func_append finalize_command " $wl$qarg"
+ continue
+ ;;
+ *)
+ eval "$prev=\"\$arg\""
+ prev=
+ continue
+ ;;
+ esac
+ fi # test -n "$prev"
+
+ prevarg=$arg
+
+ case $arg in
+ -all-static)
+ if test -n "$link_static_flag"; then
+ # See comment for -static flag below, for more details.
+ func_append compile_command " $link_static_flag"
+ func_append finalize_command " $link_static_flag"
+ fi
+ continue
+ ;;
+
+ -allow-undefined)
+ # FIXME: remove this flag sometime in the future.
+ func_fatal_error "'-allow-undefined' must not be used because it is the default"
+ ;;
+
+ -avoid-version)
+ avoid_version=yes
+ continue
+ ;;
+
+ -bindir)
+ prev=bindir
+ continue
+ ;;
+
+ -dlopen)
+ prev=dlfiles
+ continue
+ ;;
+
+ -dlpreopen)
+ prev=dlprefiles
+ continue
+ ;;
+
+ -export-dynamic)
+ export_dynamic=yes
+ continue
+ ;;
+
+ -export-symbols | -export-symbols-regex)
+ if test -n "$export_symbols" || test -n "$export_symbols_regex"; then
+ func_fatal_error "more than one -exported-symbols argument is not allowed"
+ fi
+ if test X-export-symbols = "X$arg"; then
+ prev=expsyms
+ else
+ prev=expsyms_regex
+ fi
+ continue
+ ;;
+
+ -framework)
+ prev=framework
+ continue
+ ;;
+
+ -inst-prefix-dir)
+ prev=inst_prefix
+ continue
+ ;;
+
+ # The native IRIX linker understands -LANG:*, -LIST:* and -LNO:*
+ # so, if we see these flags be careful not to treat them like -L
+ -L[A-Z][A-Z]*:*)
+ case $with_gcc/$host in
+ no/*-*-irix* | /*-*-irix*)
+ func_append compile_command " $arg"
+ func_append finalize_command " $arg"
+ ;;
+ esac
+ continue
+ ;;
+
+ -L*)
+ func_stripname "-L" '' "$arg"
+ if test -z "$func_stripname_result"; then
+ if test "$#" -gt 0; then
+ func_fatal_error "require no space between '-L' and '$1'"
+ else
+ func_fatal_error "need path for '-L' option"
+ fi
+ fi
+ func_resolve_sysroot "$func_stripname_result"
+ dir=$func_resolve_sysroot_result
+ # We need an absolute path.
+ case $dir in
+ [\\/]* | [A-Za-z]:[\\/]*) ;;
+ *)
+ absdir=`cd "$dir" && pwd`
+ test -z "$absdir" && \
+ func_fatal_error "cannot determine absolute directory name of '$dir'"
+ dir=$absdir
+ ;;
+ esac
+ case "$deplibs " in
+ *" -L$dir "* | *" $arg "*)
+ # Will only happen for absolute or sysroot arguments
+ ;;
+ *)
+ # Preserve sysroot, but never include relative directories
+ case $dir in
+ [\\/]* | [A-Za-z]:[\\/]* | =*) func_append deplibs " $arg" ;;
+ *) func_append deplibs " -L$dir" ;;
+ esac
+ func_append lib_search_path " $dir"
+ ;;
+ esac
+ case $host in
+ *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+ testbindir=`$ECHO "$dir" | $SED 's*/lib$*/bin*'`
+ case :$dllsearchpath: in
+ *":$dir:"*) ;;
+ ::) dllsearchpath=$dir;;
+ *) func_append dllsearchpath ":$dir";;
+ esac
+ case :$dllsearchpath: in
+ *":$testbindir:"*) ;;
+ ::) dllsearchpath=$testbindir;;
+ *) func_append dllsearchpath ":$testbindir";;
+ esac
+ ;;
+ esac
+ continue
+ ;;
+
+ -l*)
+ if test X-lc = "X$arg" || test X-lm = "X$arg"; then
+ case $host in
+ *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-beos* | *-cegcc* | *-*-haiku*)
+ # These systems don't actually have a C or math library (as such)
+ continue
+ ;;
+ *-*-os2*)
+ # These systems don't actually have a C library (as such)
+ test X-lc = "X$arg" && continue
+ ;;
+ *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*)
+ # Do not include libc due to us having libc/libc_r.
+ test X-lc = "X$arg" && continue
+ ;;
+ *-*-rhapsody* | *-*-darwin1.[012])
+ # Rhapsody C and math libraries are in the System framework
+ func_append deplibs " System.ltframework"
+ continue
+ ;;
+ *-*-sco3.2v5* | *-*-sco5v6*)
+ # Causes problems with __ctype
+ test X-lc = "X$arg" && continue
+ ;;
+ *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
+ # Compiler inserts libc in the correct place for threads to work
+ test X-lc = "X$arg" && continue
+ ;;
+ esac
+ elif test X-lc_r = "X$arg"; then
+ case $host in
+ *-*-openbsd* | *-*-freebsd* | *-*-dragonfly* | *-*-bitrig*)
+ # Do not include libc_r directly, use -pthread flag.
+ continue
+ ;;
+ esac
+ fi
+ func_append deplibs " $arg"
+ continue
+ ;;
+
+ -mllvm)
+ prev=mllvm
+ continue
+ ;;
+
+ -module)
+ module=yes
+ continue
+ ;;
+
+ # Tru64 UNIX uses -model [arg] to determine the layout of C++
+ # classes, name mangling, and exception handling.
+ # Darwin uses the -arch flag to determine output architecture.
+ -model|-arch|-isysroot|--sysroot)
+ func_append compiler_flags " $arg"
+ func_append compile_command " $arg"
+ func_append finalize_command " $arg"
+ prev=xcompiler
+ continue
+ ;;
+
+ -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
+ |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
+ func_append compiler_flags " $arg"
+ func_append compile_command " $arg"
+ func_append finalize_command " $arg"
+ case "$new_inherited_linker_flags " in
+ *" $arg "*) ;;
+ * ) func_append new_inherited_linker_flags " $arg" ;;
+ esac
+ continue
+ ;;
+
+ -multi_module)
+ single_module=$wl-multi_module
+ continue
+ ;;
+
+ -no-fast-install)
+ fast_install=no
+ continue
+ ;;
+
+ -no-install)
+ case $host in
+ *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-darwin* | *-cegcc*)
+ # The PATH hackery in wrapper scripts is required on Windows
+ # and Darwin in order for the loader to find any dlls it needs.
+ func_warning "'-no-install' is ignored for $host"
+ func_warning "assuming '-no-fast-install' instead"
+ fast_install=no
+ ;;
+ *) no_install=yes ;;
+ esac
+ continue
+ ;;
+
+ -no-undefined)
+ allow_undefined=no
+ continue
+ ;;
+
+ -objectlist)
+ prev=objectlist
+ continue
+ ;;
+
+ -os2dllname)
+ prev=os2dllname
+ continue
+ ;;
+
+ -o) prev=output ;;
+
+ -precious-files-regex)
+ prev=precious_regex
+ continue
+ ;;
+
+ -release)
+ prev=release
+ continue
+ ;;
+
+ -rpath)
+ prev=rpath
+ continue
+ ;;
+
+ -R)
+ prev=xrpath
+ continue
+ ;;
+
+ -R*)
+ func_stripname '-R' '' "$arg"
+ dir=$func_stripname_result
+ # We need an absolute path.
+ case $dir in
+ [\\/]* | [A-Za-z]:[\\/]*) ;;
+ =*)
+ func_stripname '=' '' "$dir"
+ dir=$lt_sysroot$func_stripname_result
+ ;;
+ *)
+ func_fatal_error "only absolute run-paths are allowed"
+ ;;
+ esac
+ case "$xrpath " in
+ *" $dir "*) ;;
+ *) func_append xrpath " $dir" ;;
+ esac
+ continue
+ ;;
+
+ -shared)
+ # The effects of -shared are defined in a previous loop.
+ continue
+ ;;
+
+ -shrext)
+ prev=shrext
+ continue
+ ;;
+
+ -static | -static-libtool-libs)
+ # The effects of -static are defined in a previous loop.
+ # We used to do the same as -all-static on platforms that
+ # didn't have a PIC flag, but the assumption that the effects
+ # would be equivalent was wrong. It would break on at least
+ # Digital Unix and AIX.
+ continue
+ ;;
+
+ -thread-safe)
+ thread_safe=yes
+ continue
+ ;;
+
+ -version-info)
+ prev=vinfo
+ continue
+ ;;
+
+ -version-number)
+ prev=vinfo
+ vinfo_number=yes
+ continue
+ ;;
+
+ -weak)
+ prev=weak
+ continue
+ ;;
+
+ -Wc,*)
+ func_stripname '-Wc,' '' "$arg"
+ args=$func_stripname_result
+ arg=
+ save_ifs=$IFS; IFS=,
+ for flag in $args; do
+ IFS=$save_ifs
+ func_quote_for_eval "$flag"
+ func_append arg " $func_quote_for_eval_result"
+ func_append compiler_flags " $func_quote_for_eval_result"
+ done
+ IFS=$save_ifs
+ func_stripname ' ' '' "$arg"
+ arg=$func_stripname_result
+ ;;
+
+ -Wl,*)
+ func_stripname '-Wl,' '' "$arg"
+ args=$func_stripname_result
+ arg=
+ save_ifs=$IFS; IFS=,
+ for flag in $args; do
+ IFS=$save_ifs
+ func_quote_for_eval "$flag"
+ func_append arg " $wl$func_quote_for_eval_result"
+ func_append compiler_flags " $wl$func_quote_for_eval_result"
+ func_append linker_flags " $func_quote_for_eval_result"
+ done
+ IFS=$save_ifs
+ func_stripname ' ' '' "$arg"
+ arg=$func_stripname_result
+ ;;
+
+ -Xcompiler)
+ prev=xcompiler
+ continue
+ ;;
+
+ -Xlinker)
+ prev=xlinker
+ continue
+ ;;
+
+ -XCClinker)
+ prev=xcclinker
+ continue
+ ;;
+
+ # -msg_* for osf cc
+ -msg_*)
+ func_quote_for_eval "$arg"
+ arg=$func_quote_for_eval_result
+ ;;
+
+ # Flags to be passed through unchanged, with rationale:
+ # -64, -mips[0-9] enable 64-bit mode for the SGI compiler
+ # -r[0-9][0-9]* specify processor for the SGI compiler
+ # -xarch=*, -xtarget=* enable 64-bit mode for the Sun compiler
+ # +DA*, +DD* enable 64-bit mode for the HP compiler
+ # -q* compiler args for the IBM compiler
+ # -m*, -t[45]*, -txscale* architecture-specific flags for GCC
+ # -F/path path to uninstalled frameworks, gcc on darwin
+ # -p, -pg, --coverage, -fprofile-* profiling flags for GCC
+ # -fstack-protector* stack protector flags for GCC
+ # @file GCC response files
+ # -tp=* Portland pgcc target processor selection
+ # --sysroot=* for sysroot support
+ # -O*, -g*, -flto*, -fwhopr*, -fuse-linker-plugin GCC link-time optimization
+ # -specs=* GCC specs files
+ # -stdlib=* select c++ std lib with clang
+ -64|-mips[0-9]|-r[0-9][0-9]*|-xarch=*|-xtarget=*|+DA*|+DD*|-q*|-m*| \
+ -t[45]*|-txscale*|-p|-pg|--coverage|-fprofile-*|-F*|@*|-tp=*|--sysroot=*| \
+ -O*|-g*|-flto*|-fwhopr*|-fuse-linker-plugin|-fstack-protector*|-stdlib=*| \
+ -specs=*)
+ func_quote_for_eval "$arg"
+ arg=$func_quote_for_eval_result
+ func_append compile_command " $arg"
+ func_append finalize_command " $arg"
+ func_append compiler_flags " $arg"
+ continue
+ ;;
+
+ -Z*)
+ if test os2 = "`expr $host : '.*\(os2\)'`"; then
+ # OS/2 uses -Zxxx to specify OS/2-specific options
+ compiler_flags="$compiler_flags $arg"
+ func_append compile_command " $arg"
+ func_append finalize_command " $arg"
+ case $arg in
+ -Zlinker | -Zstack)
+ prev=xcompiler
+ ;;
+ esac
+ continue
+ else
+ # Otherwise treat like 'Some other compiler flag' below
+ func_quote_for_eval "$arg"
+ arg=$func_quote_for_eval_result
+ fi
+ ;;
+
+ # Some other compiler flag.
+ -* | +*)
+ func_quote_for_eval "$arg"
+ arg=$func_quote_for_eval_result
+ ;;
+
+ *.$objext)
+ # A standard object.
+ func_append objs " $arg"
+ ;;
+
+ *.lo)
+ # A libtool-controlled object.
+
+ # Check to see that this really is a libtool object.
+ if func_lalib_unsafe_p "$arg"; then
+ pic_object=
+ non_pic_object=
+
+ # Read the .lo file
+ func_source "$arg"
+
+ if test -z "$pic_object" ||
+ test -z "$non_pic_object" ||
+ test none = "$pic_object" &&
+ test none = "$non_pic_object"; then
+ func_fatal_error "cannot find name of object for '$arg'"
+ fi
+
+ # Extract subdirectory from the argument.
+ func_dirname "$arg" "/" ""
+ xdir=$func_dirname_result
+
+ test none = "$pic_object" || {
+ # Prepend the subdirectory the object is found in.
+ pic_object=$xdir$pic_object
+
+ if test dlfiles = "$prev"; then
+ if test yes = "$build_libtool_libs" && test yes = "$dlopen_support"; then
+ func_append dlfiles " $pic_object"
+ prev=
+ continue
+ else
+ # If libtool objects are unsupported, then we need to preload.
+ prev=dlprefiles
+ fi
+ fi
+
+ # CHECK ME: I think I busted this. -Ossama
+ if test dlprefiles = "$prev"; then
+ # Preload the old-style object.
+ func_append dlprefiles " $pic_object"
+ prev=
+ fi
+
+ # A PIC object.
+ func_append libobjs " $pic_object"
+ arg=$pic_object
+ }
+
+ # Non-PIC object.
+ if test none != "$non_pic_object"; then
+ # Prepend the subdirectory the object is found in.
+ non_pic_object=$xdir$non_pic_object
+
+ # A standard non-PIC object
+ func_append non_pic_objects " $non_pic_object"
+ if test -z "$pic_object" || test none = "$pic_object"; then
+ arg=$non_pic_object
+ fi
+ else
+ # If the PIC object exists, use it instead.
+ # $xdir was prepended to $pic_object above.
+ non_pic_object=$pic_object
+ func_append non_pic_objects " $non_pic_object"
+ fi
+ else
+ # Only an error if not doing a dry-run.
+ if $opt_dry_run; then
+ # Extract subdirectory from the argument.
+ func_dirname "$arg" "/" ""
+ xdir=$func_dirname_result
+
+ func_lo2o "$arg"
+ pic_object=$xdir$objdir/$func_lo2o_result
+ non_pic_object=$xdir$func_lo2o_result
+ func_append libobjs " $pic_object"
+ func_append non_pic_objects " $non_pic_object"
+ else
+ func_fatal_error "'$arg' is not a valid libtool object"
+ fi
+ fi
+ ;;
+
+ *.$libext)
+ # An archive.
+ func_append deplibs " $arg"
+ func_append old_deplibs " $arg"
+ continue
+ ;;
+
+ *.la)
+ # A libtool-controlled library.
+
+ func_resolve_sysroot "$arg"
+ if test dlfiles = "$prev"; then
+ # This library was specified with -dlopen.
+ func_append dlfiles " $func_resolve_sysroot_result"
+ prev=
+ elif test dlprefiles = "$prev"; then
+ # The library was specified with -dlpreopen.
+ func_append dlprefiles " $func_resolve_sysroot_result"
+ prev=
+ else
+ func_append deplibs " $func_resolve_sysroot_result"
+ fi
+ continue
+ ;;
+
+ # Some other compiler argument.
+ *)
+ # Unknown arguments in both finalize_command and compile_command need
+ # to be aesthetically quoted because they are evaled later.
+ func_quote_for_eval "$arg"
+ arg=$func_quote_for_eval_result
+ ;;
+ esac # arg
+
+ # Now actually substitute the argument into the commands.
+ if test -n "$arg"; then
+ func_append compile_command " $arg"
+ func_append finalize_command " $arg"
+ fi
+ done # argument parsing loop
+
+ test -n "$prev" && \
+ func_fatal_help "the '$prevarg' option requires an argument"
+
+ if test yes = "$export_dynamic" && test -n "$export_dynamic_flag_spec"; then
+ eval arg=\"$export_dynamic_flag_spec\"
+ func_append compile_command " $arg"
+ func_append finalize_command " $arg"
+ fi
+
+ oldlibs=
+ # calculate the name of the file, without its directory
+ func_basename "$output"
+ outputname=$func_basename_result
+ libobjs_save=$libobjs
+
+ if test -n "$shlibpath_var"; then
+ # get the directories listed in $shlibpath_var
+ eval shlib_search_path=\`\$ECHO \"\$$shlibpath_var\" \| \$SED \'s/:/ /g\'\`
+ else
+ shlib_search_path=
+ fi
+ eval sys_lib_search_path=\"$sys_lib_search_path_spec\"
+ eval sys_lib_dlsearch_path=\"$sys_lib_dlsearch_path_spec\"
+
+ # Definition is injected by LT_CONFIG during libtool generation.
+ func_munge_path_list sys_lib_dlsearch_path "$LT_SYS_LIBRARY_PATH"
+
+ func_dirname "$output" "/" ""
+ output_objdir=$func_dirname_result$objdir
+ func_to_tool_file "$output_objdir/"
+ tool_output_objdir=$func_to_tool_file_result
+ # Create the object directory.
+ func_mkdir_p "$output_objdir"
+
+ # Determine the type of output
+ case $output in
+ "")
+ func_fatal_help "you must specify an output file"
+ ;;
+ *.$libext) linkmode=oldlib ;;
+ *.lo | *.$objext) linkmode=obj ;;
+ *.la) linkmode=lib ;;
+ *) linkmode=prog ;; # Anything else should be a program.
+ esac
+
+ specialdeplibs=
+
+ libs=
+ # Find all interdependent deplibs by searching for libraries
+ # that are linked more than once (e.g. -la -lb -la)
+ for deplib in $deplibs; do
+ if $opt_preserve_dup_deps; then
+ case "$libs " in
+ *" $deplib "*) func_append specialdeplibs " $deplib" ;;
+ esac
+ fi
+ func_append libs " $deplib"
+ done
+
+ if test lib = "$linkmode"; then
+ libs="$predeps $libs $compiler_lib_search_path $postdeps"
+
+ # Compute libraries that are listed more than once in $predeps
+ # $postdeps and mark them as special (i.e., whose duplicates are
+ # not to be eliminated).
+ pre_post_deps=
+ if $opt_duplicate_compiler_generated_deps; then
+ for pre_post_dep in $predeps $postdeps; do
+ case "$pre_post_deps " in
+ *" $pre_post_dep "*) func_append specialdeplibs " $pre_post_deps" ;;
+ esac
+ func_append pre_post_deps " $pre_post_dep"
+ done
+ fi
+ pre_post_deps=
+ fi
+
+ deplibs=
+ newdependency_libs=
+ newlib_search_path=
+ need_relink=no # whether we're linking any uninstalled libtool libraries
+ notinst_deplibs= # not-installed libtool libraries
+ notinst_path= # paths that contain not-installed libtool libraries
+
+ case $linkmode in
+ lib)
+ passes="conv dlpreopen link"
+ for file in $dlfiles $dlprefiles; do
+ case $file in
+ *.la) ;;
+ *)
+ func_fatal_help "libraries can '-dlopen' only libtool libraries: $file"
+ ;;
+ esac
+ done
+ ;;
+ prog)
+ compile_deplibs=
+ finalize_deplibs=
+ alldeplibs=false
+ newdlfiles=
+ newdlprefiles=
+ passes="conv scan dlopen dlpreopen link"
+ ;;
+ *) passes="conv"
+ ;;
+ esac
+
+ for pass in $passes; do
+ # The preopen pass in lib mode reverses $deplibs; put it back here
+ # so that -L comes before libs that need it for instance...
+ if test lib,link = "$linkmode,$pass"; then
+ ## FIXME: Find the place where the list is rebuilt in the wrong
+ ## order, and fix it there properly
+ tmp_deplibs=
+ for deplib in $deplibs; do
+ tmp_deplibs="$deplib $tmp_deplibs"
+ done
+ deplibs=$tmp_deplibs
+ fi
+
+ if test lib,link = "$linkmode,$pass" ||
+ test prog,scan = "$linkmode,$pass"; then
+ libs=$deplibs
+ deplibs=
+ fi
+ if test prog = "$linkmode"; then
+ case $pass in
+ dlopen) libs=$dlfiles ;;
+ dlpreopen) libs=$dlprefiles ;;
+ link) libs="$deplibs %DEPLIBS% $dependency_libs" ;;
+ esac
+ fi
+ if test lib,dlpreopen = "$linkmode,$pass"; then
+ # Collect and forward deplibs of preopened libtool libs
+ for lib in $dlprefiles; do
+ # Ignore non-libtool-libs
+ dependency_libs=
+ func_resolve_sysroot "$lib"
+ case $lib in
+ *.la) func_source "$func_resolve_sysroot_result" ;;
+ esac
+
+ # Collect preopened libtool deplibs, except any this library
+ # has declared as weak libs
+ for deplib in $dependency_libs; do
+ func_basename "$deplib"
+ deplib_base=$func_basename_result
+ case " $weak_libs " in
+ *" $deplib_base "*) ;;
+ *) func_append deplibs " $deplib" ;;
+ esac
+ done
+ done
+ libs=$dlprefiles
+ fi
+ if test dlopen = "$pass"; then
+ # Collect dlpreopened libraries
+ save_deplibs=$deplibs
+ deplibs=
+ fi
+
+ for deplib in $libs; do
+ lib=
+ found=false
+ case $deplib in
+ -mt|-mthreads|-kthread|-Kthread|-pthread|-pthreads|--thread-safe \
+ |-threads|-fopenmp|-openmp|-mp|-xopenmp|-omp|-qsmp=*)
+ if test prog,link = "$linkmode,$pass"; then
+ compile_deplibs="$deplib $compile_deplibs"
+ finalize_deplibs="$deplib $finalize_deplibs"
+ else
+ func_append compiler_flags " $deplib"
+ if test lib = "$linkmode"; then
+ case "$new_inherited_linker_flags " in
+ *" $deplib "*) ;;
+ * ) func_append new_inherited_linker_flags " $deplib" ;;
+ esac
+ fi
+ fi
+ continue
+ ;;
+ -l*)
+ if test lib != "$linkmode" && test prog != "$linkmode"; then
+ func_warning "'-l' is ignored for archives/objects"
+ continue
+ fi
+ func_stripname '-l' '' "$deplib"
+ name=$func_stripname_result
+ if test lib = "$linkmode"; then
+ searchdirs="$newlib_search_path $lib_search_path $compiler_lib_search_dirs $sys_lib_search_path $shlib_search_path"
+ else
+ searchdirs="$newlib_search_path $lib_search_path $sys_lib_search_path $shlib_search_path"
+ fi
+ for searchdir in $searchdirs; do
+ for search_ext in .la $std_shrext .so .a; do
+ # Search the libtool library
+ lib=$searchdir/lib$name$search_ext
+ if test -f "$lib"; then
+ if test .la = "$search_ext"; then
+ found=:
+ else
+ found=false
+ fi
+ break 2
+ fi
+ done
+ done
+ if $found; then
+ # deplib is a libtool library
+ # If $allow_libtool_libs_with_static_runtimes && $deplib is a stdlib,
+ # We need to do some special things here, and not later.
+ if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+ case " $predeps $postdeps " in
+ *" $deplib "*)
+ if func_lalib_p "$lib"; then
+ library_names=
+ old_library=
+ func_source "$lib"
+ for l in $old_library $library_names; do
+ ll=$l
+ done
+ if test "X$ll" = "X$old_library"; then # only static version available
+ found=false
+ func_dirname "$lib" "" "."
+ ladir=$func_dirname_result
+ lib=$ladir/$old_library
+ if test prog,link = "$linkmode,$pass"; then
+ compile_deplibs="$deplib $compile_deplibs"
+ finalize_deplibs="$deplib $finalize_deplibs"
+ else
+ deplibs="$deplib $deplibs"
+ test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs"
+ fi
+ continue
+ fi
+ fi
+ ;;
+ *) ;;
+ esac
+ fi
+ else
+ # deplib doesn't seem to be a libtool library
+ if test prog,link = "$linkmode,$pass"; then
+ compile_deplibs="$deplib $compile_deplibs"
+ finalize_deplibs="$deplib $finalize_deplibs"
+ else
+ deplibs="$deplib $deplibs"
+ test lib = "$linkmode" && newdependency_libs="$deplib $newdependency_libs"
+ fi
+ continue
+ fi
+ ;; # -l
+ *.ltframework)
+ if test prog,link = "$linkmode,$pass"; then
+ compile_deplibs="$deplib $compile_deplibs"
+ finalize_deplibs="$deplib $finalize_deplibs"
+ else
+ deplibs="$deplib $deplibs"
+ if test lib = "$linkmode"; then
+ case "$new_inherited_linker_flags " in
+ *" $deplib "*) ;;
+ * ) func_append new_inherited_linker_flags " $deplib" ;;
+ esac
+ fi
+ fi
+ continue
+ ;;
+ -L*)
+ case $linkmode in
+ lib)
+ deplibs="$deplib $deplibs"
+ test conv = "$pass" && continue
+ newdependency_libs="$deplib $newdependency_libs"
+ func_stripname '-L' '' "$deplib"
+ func_resolve_sysroot "$func_stripname_result"
+ func_append newlib_search_path " $func_resolve_sysroot_result"
+ ;;
+ prog)
+ if test conv = "$pass"; then
+ deplibs="$deplib $deplibs"
+ continue
+ fi
+ if test scan = "$pass"; then
+ deplibs="$deplib $deplibs"
+ else
+ compile_deplibs="$deplib $compile_deplibs"
+ finalize_deplibs="$deplib $finalize_deplibs"
+ fi
+ func_stripname '-L' '' "$deplib"
+ func_resolve_sysroot "$func_stripname_result"
+ func_append newlib_search_path " $func_resolve_sysroot_result"
+ ;;
+ *)
+ func_warning "'-L' is ignored for archives/objects"
+ ;;
+ esac # linkmode
+ continue
+ ;; # -L
+ -R*)
+ if test link = "$pass"; then
+ func_stripname '-R' '' "$deplib"
+ func_resolve_sysroot "$func_stripname_result"
+ dir=$func_resolve_sysroot_result
+ # Make sure the xrpath contains only unique directories.
+ case "$xrpath " in
+ *" $dir "*) ;;
+ *) func_append xrpath " $dir" ;;
+ esac
+ fi
+ deplibs="$deplib $deplibs"
+ continue
+ ;;
+ *.la)
+ func_resolve_sysroot "$deplib"
+ lib=$func_resolve_sysroot_result
+ ;;
+ *.$libext)
+ if test conv = "$pass"; then
+ deplibs="$deplib $deplibs"
+ continue
+ fi
+ case $linkmode in
+ lib)
+ # Linking convenience modules into shared libraries is allowed,
+ # but linking other static libraries is non-portable.
+ case " $dlpreconveniencelibs " in
+ *" $deplib "*) ;;
+ *)
+ valid_a_lib=false
+ case $deplibs_check_method in
+ match_pattern*)
+ set dummy $deplibs_check_method; shift
+ match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
+ if eval "\$ECHO \"$deplib\"" 2>/dev/null | $SED 10q \
+ | $EGREP "$match_pattern_regex" > /dev/null; then
+ valid_a_lib=:
+ fi
+ ;;
+ pass_all)
+ valid_a_lib=:
+ ;;
+ esac
+ if $valid_a_lib; then
+ echo
+ $ECHO "*** Warning: Linking the shared library $output against the"
+ $ECHO "*** static library $deplib is not portable!"
+ deplibs="$deplib $deplibs"
+ else
+ echo
+ $ECHO "*** Warning: Trying to link with static lib archive $deplib."
+ echo "*** I have the capability to make that library automatically link in when"
+ echo "*** you link to this library. But I can only do this if you have a"
+ echo "*** shared version of the library, which you do not appear to have"
+ echo "*** because the file extensions .$libext of this argument makes me believe"
+ echo "*** that it is just a static archive that I should not use here."
+ fi
+ ;;
+ esac
+ continue
+ ;;
+ prog)
+ if test link != "$pass"; then
+ deplibs="$deplib $deplibs"
+ else
+ compile_deplibs="$deplib $compile_deplibs"
+ finalize_deplibs="$deplib $finalize_deplibs"
+ fi
+ continue
+ ;;
+ esac # linkmode
+ ;; # *.$libext
+ *.lo | *.$objext)
+ if test conv = "$pass"; then
+ deplibs="$deplib $deplibs"
+ elif test prog = "$linkmode"; then
+ if test dlpreopen = "$pass" || test yes != "$dlopen_support" || test no = "$build_libtool_libs"; then
+ # If there is no dlopen support or we're linking statically,
+ # we need to preload.
+ func_append newdlprefiles " $deplib"
+ compile_deplibs="$deplib $compile_deplibs"
+ finalize_deplibs="$deplib $finalize_deplibs"
+ else
+ func_append newdlfiles " $deplib"
+ fi
+ fi
+ continue
+ ;;
+ %DEPLIBS%)
+ alldeplibs=:
+ continue
+ ;;
+ esac # case $deplib
+
+ $found || test -f "$lib" \
+ || func_fatal_error "cannot find the library '$lib' or unhandled argument '$deplib'"
+
+ # Check to see that this really is a libtool archive.
+ func_lalib_unsafe_p "$lib" \
+ || func_fatal_error "'$lib' is not a valid libtool archive"
+
+ func_dirname "$lib" "" "."
+ ladir=$func_dirname_result
+
+ dlname=
+ dlopen=
+ dlpreopen=
+ libdir=
+ library_names=
+ old_library=
+ inherited_linker_flags=
+ # If the library was installed with an old release of libtool,
+ # it will not redefine variables installed, or shouldnotlink
+ installed=yes
+ shouldnotlink=no
+ avoidtemprpath=
+
+
+ # Read the .la file
+ func_source "$lib"
+
+ # Convert "-framework foo" to "foo.ltframework"
+ if test -n "$inherited_linker_flags"; then
+ tmp_inherited_linker_flags=`$ECHO "$inherited_linker_flags" | $SED 's/-framework \([^ $]*\)/\1.ltframework/g'`
+ for tmp_inherited_linker_flag in $tmp_inherited_linker_flags; do
+ case " $new_inherited_linker_flags " in
+ *" $tmp_inherited_linker_flag "*) ;;
+ *) func_append new_inherited_linker_flags " $tmp_inherited_linker_flag";;
+ esac
+ done
+ fi
+ dependency_libs=`$ECHO " $dependency_libs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+ if test lib,link = "$linkmode,$pass" ||
+ test prog,scan = "$linkmode,$pass" ||
+ { test prog != "$linkmode" && test lib != "$linkmode"; }; then
+ test -n "$dlopen" && func_append dlfiles " $dlopen"
+ test -n "$dlpreopen" && func_append dlprefiles " $dlpreopen"
+ fi
+
+ if test conv = "$pass"; then
+ # Only check for convenience libraries
+ deplibs="$lib $deplibs"
+ if test -z "$libdir"; then
+ if test -z "$old_library"; then
+ func_fatal_error "cannot find name of link library for '$lib'"
+ fi
+ # It is a libtool convenience library, so add in its objects.
+ func_append convenience " $ladir/$objdir/$old_library"
+ func_append old_convenience " $ladir/$objdir/$old_library"
+ elif test prog != "$linkmode" && test lib != "$linkmode"; then
+ func_fatal_error "'$lib' is not a convenience library"
+ fi
+ tmp_libs=
+ for deplib in $dependency_libs; do
+ deplibs="$deplib $deplibs"
+ if $opt_preserve_dup_deps; then
+ case "$tmp_libs " in
+ *" $deplib "*) func_append specialdeplibs " $deplib" ;;
+ esac
+ fi
+ func_append tmp_libs " $deplib"
+ done
+ continue
+ fi # $pass = conv
+
+
+ # Get the name of the library we link against.
+ linklib=
+ if test -n "$old_library" &&
+ { test yes = "$prefer_static_libs" ||
+ test built,no = "$prefer_static_libs,$installed"; }; then
+ linklib=$old_library
+ else
+ for l in $old_library $library_names; do
+ linklib=$l
+ done
+ fi
+ if test -z "$linklib"; then
+ func_fatal_error "cannot find name of link library for '$lib'"
+ fi
+
+ # This library was specified with -dlopen.
+ if test dlopen = "$pass"; then
+ test -z "$libdir" \
+ && func_fatal_error "cannot -dlopen a convenience library: '$lib'"
+ if test -z "$dlname" ||
+ test yes != "$dlopen_support" ||
+ test no = "$build_libtool_libs"
+ then
+ # If there is no dlname, no dlopen support or we're linking
+ # statically, we need to preload. We also need to preload any
+ # dependent libraries so libltdl's deplib preloader doesn't
+ # bomb out in the load deplibs phase.
+ func_append dlprefiles " $lib $dependency_libs"
+ else
+ func_append newdlfiles " $lib"
+ fi
+ continue
+ fi # $pass = dlopen
+
+ # We need an absolute path.
+ case $ladir in
+ [\\/]* | [A-Za-z]:[\\/]*) abs_ladir=$ladir ;;
+ *)
+ abs_ladir=`cd "$ladir" && pwd`
+ if test -z "$abs_ladir"; then
+ func_warning "cannot determine absolute directory name of '$ladir'"
+ func_warning "passing it literally to the linker, although it might fail"
+ abs_ladir=$ladir
+ fi
+ ;;
+ esac
+ func_basename "$lib"
+ laname=$func_basename_result
+
+ # Find the relevant object directory and library name.
+ if test yes = "$installed"; then
+ if test ! -f "$lt_sysroot$libdir/$linklib" && test -f "$abs_ladir/$linklib"; then
+ func_warning "library '$lib' was moved."
+ dir=$ladir
+ absdir=$abs_ladir
+ libdir=$abs_ladir
+ else
+ dir=$lt_sysroot$libdir
+ absdir=$lt_sysroot$libdir
+ fi
+ test yes = "$hardcode_automatic" && avoidtemprpath=yes
+ else
+ if test ! -f "$ladir/$objdir/$linklib" && test -f "$abs_ladir/$linklib"; then
+ dir=$ladir
+ absdir=$abs_ladir
+ # Remove this search path later
+ func_append notinst_path " $abs_ladir"
+ else
+ dir=$ladir/$objdir
+ absdir=$abs_ladir/$objdir
+ # Remove this search path later
+ func_append notinst_path " $abs_ladir"
+ fi
+ fi # $installed = yes
+ func_stripname 'lib' '.la' "$laname"
+ name=$func_stripname_result
+
+ # This library was specified with -dlpreopen.
+ if test dlpreopen = "$pass"; then
+ if test -z "$libdir" && test prog = "$linkmode"; then
+ func_fatal_error "only libraries may -dlpreopen a convenience library: '$lib'"
+ fi
+ case $host in
+ # special handling for platforms with PE-DLLs.
+ *cygwin* | *mingw* | *cegcc* )
+ # Linker will automatically link against shared library if both
+ # static and shared are present. Therefore, ensure we extract
+ # symbols from the import library if a shared library is present
+ # (otherwise, the dlopen module name will be incorrect). We do
+ # this by putting the import library name into $newdlprefiles.
+ # We recover the dlopen module name by 'saving' the la file
+ # name in a special purpose variable, and (later) extracting the
+ # dlname from the la file.
+ if test -n "$dlname"; then
+ func_tr_sh "$dir/$linklib"
+ eval "libfile_$func_tr_sh_result=\$abs_ladir/\$laname"
+ func_append newdlprefiles " $dir/$linklib"
+ else
+ func_append newdlprefiles " $dir/$old_library"
+ # Keep a list of preopened convenience libraries to check
+ # that they are being used correctly in the link pass.
+ test -z "$libdir" && \
+ func_append dlpreconveniencelibs " $dir/$old_library"
+ fi
+ ;;
+ * )
+ # Prefer using a static library (so that no silly _DYNAMIC symbols
+ # are required to link).
+ if test -n "$old_library"; then
+ func_append newdlprefiles " $dir/$old_library"
+ # Keep a list of preopened convenience libraries to check
+ # that they are being used correctly in the link pass.
+ test -z "$libdir" && \
+ func_append dlpreconveniencelibs " $dir/$old_library"
+ # Otherwise, use the dlname, so that lt_dlopen finds it.
+ elif test -n "$dlname"; then
+ func_append newdlprefiles " $dir/$dlname"
+ else
+ func_append newdlprefiles " $dir/$linklib"
+ fi
+ ;;
+ esac
+ fi # $pass = dlpreopen
+
+ if test -z "$libdir"; then
+ # Link the convenience library
+ if test lib = "$linkmode"; then
+ deplibs="$dir/$old_library $deplibs"
+ elif test prog,link = "$linkmode,$pass"; then
+ compile_deplibs="$dir/$old_library $compile_deplibs"
+ finalize_deplibs="$dir/$old_library $finalize_deplibs"
+ else
+ deplibs="$lib $deplibs" # used for prog,scan pass
+ fi
+ continue
+ fi
+
+
+ if test prog = "$linkmode" && test link != "$pass"; then
+ func_append newlib_search_path " $ladir"
+ deplibs="$lib $deplibs"
+
+ linkalldeplibs=false
+ if test no != "$link_all_deplibs" || test -z "$library_names" ||
+ test no = "$build_libtool_libs"; then
+ linkalldeplibs=:
+ fi
+
+ tmp_libs=
+ for deplib in $dependency_libs; do
+ case $deplib in
+ -L*) func_stripname '-L' '' "$deplib"
+ func_resolve_sysroot "$func_stripname_result"
+ func_append newlib_search_path " $func_resolve_sysroot_result"
+ ;;
+ esac
+ # Need to link against all dependency_libs?
+ if $linkalldeplibs; then
+ deplibs="$deplib $deplibs"
+ else
+ # Need to hardcode shared library paths
+ # or/and link against static libraries
+ newdependency_libs="$deplib $newdependency_libs"
+ fi
+ if $opt_preserve_dup_deps; then
+ case "$tmp_libs " in
+ *" $deplib "*) func_append specialdeplibs " $deplib" ;;
+ esac
+ fi
+ func_append tmp_libs " $deplib"
+ done # for deplib
+ continue
+ fi # $linkmode = prog...
+
+ if test prog,link = "$linkmode,$pass"; then
+ if test -n "$library_names" &&
+ { { test no = "$prefer_static_libs" ||
+ test built,yes = "$prefer_static_libs,$installed"; } ||
+ test -z "$old_library"; }; then
+ # We need to hardcode the library path
+ if test -n "$shlibpath_var" && test -z "$avoidtemprpath"; then
+ # Make sure the rpath contains only unique directories.
+ case $temp_rpath: in
+ *"$absdir:"*) ;;
+ *) func_append temp_rpath "$absdir:" ;;
+ esac
+ fi
+
+ # Hardcode the library path.
+ # Skip directories that are in the system default run-time
+ # search path.
+ case " $sys_lib_dlsearch_path " in
+ *" $absdir "*) ;;
+ *)
+ case "$compile_rpath " in
+ *" $absdir "*) ;;
+ *) func_append compile_rpath " $absdir" ;;
+ esac
+ ;;
+ esac
+ case " $sys_lib_dlsearch_path " in
+ *" $libdir "*) ;;
+ *)
+ case "$finalize_rpath " in
+ *" $libdir "*) ;;
+ *) func_append finalize_rpath " $libdir" ;;
+ esac
+ ;;
+ esac
+ fi # $linkmode,$pass = prog,link...
+
+ if $alldeplibs &&
+ { test pass_all = "$deplibs_check_method" ||
+ { test yes = "$build_libtool_libs" &&
+ test -n "$library_names"; }; }; then
+ # We only need to search for static libraries
+ continue
+ fi
+ fi
+
+ link_static=no # Whether the deplib will be linked statically
+ use_static_libs=$prefer_static_libs
+ if test built = "$use_static_libs" && test yes = "$installed"; then
+ use_static_libs=no
+ fi
+ if test -n "$library_names" &&
+ { test no = "$use_static_libs" || test -z "$old_library"; }; then
+ case $host in
+ *cygwin* | *mingw* | *cegcc* | *os2*)
+ # No point in relinking DLLs because paths are not encoded
+ func_append notinst_deplibs " $lib"
+ need_relink=no
+ ;;
+ *)
+ if test no = "$installed"; then
+ func_append notinst_deplibs " $lib"
+ need_relink=yes
+ fi
+ ;;
+ esac
+ # This is a shared library
+
+ # Warn about portability, can't link against -module's on some
+ # systems (darwin). Don't bleat about dlopened modules though!
+ dlopenmodule=
+ for dlpremoduletest in $dlprefiles; do
+ if test "X$dlpremoduletest" = "X$lib"; then
+ dlopenmodule=$dlpremoduletest
+ break
+ fi
+ done
+ if test -z "$dlopenmodule" && test yes = "$shouldnotlink" && test link = "$pass"; then
+ echo
+ if test prog = "$linkmode"; then
+ $ECHO "*** Warning: Linking the executable $output against the loadable module"
+ else
+ $ECHO "*** Warning: Linking the shared library $output against the loadable module"
+ fi
+ $ECHO "*** $linklib is not portable!"
+ fi
+ if test lib = "$linkmode" &&
+ test yes = "$hardcode_into_libs"; then
+ # Hardcode the library path.
+ # Skip directories that are in the system default run-time
+ # search path.
+ case " $sys_lib_dlsearch_path " in
+ *" $absdir "*) ;;
+ *)
+ case "$compile_rpath " in
+ *" $absdir "*) ;;
+ *) func_append compile_rpath " $absdir" ;;
+ esac
+ ;;
+ esac
+ case " $sys_lib_dlsearch_path " in
+ *" $libdir "*) ;;
+ *)
+ case "$finalize_rpath " in
+ *" $libdir "*) ;;
+ *) func_append finalize_rpath " $libdir" ;;
+ esac
+ ;;
+ esac
+ fi
+
+ if test -n "$old_archive_from_expsyms_cmds"; then
+ # figure out the soname
+ set dummy $library_names
+ shift
+ realname=$1
+ shift
+ libname=`eval "\\$ECHO \"$libname_spec\""`
+ # use dlname if we got it. it's perfectly good, no?
+ if test -n "$dlname"; then
+ soname=$dlname
+ elif test -n "$soname_spec"; then
+ # bleh windows
+ case $host in
+ *cygwin* | mingw* | *cegcc* | *os2*)
+ func_arith $current - $age
+ major=$func_arith_result
+ versuffix=-$major
+ ;;
+ esac
+ eval soname=\"$soname_spec\"
+ else
+ soname=$realname
+ fi
+
+ # Make a new name for the extract_expsyms_cmds to use
+ soroot=$soname
+ func_basename "$soroot"
+ soname=$func_basename_result
+ func_stripname 'lib' '.dll' "$soname"
+ newlib=libimp-$func_stripname_result.a
+
+ # If the library has no export list, then create one now
+ if test -f "$output_objdir/$soname-def"; then :
+ else
+ func_verbose "extracting exported symbol list from '$soname'"
+ func_execute_cmds "$extract_expsyms_cmds" 'exit $?'
+ fi
+
+ # Create $newlib
+ if test -f "$output_objdir/$newlib"; then :; else
+ func_verbose "generating import library for '$soname'"
+ func_execute_cmds "$old_archive_from_expsyms_cmds" 'exit $?'
+ fi
+ # make sure the library variables are pointing to the new library
+ dir=$output_objdir
+ linklib=$newlib
+ fi # test -n "$old_archive_from_expsyms_cmds"
+
+ if test prog = "$linkmode" || test relink != "$opt_mode"; then
+ add_shlibpath=
+ add_dir=
+ add=
+ lib_linked=yes
+ case $hardcode_action in
+ immediate | unsupported)
+ if test no = "$hardcode_direct"; then
+ add=$dir/$linklib
+ case $host in
+ *-*-sco3.2v5.0.[024]*) add_dir=-L$dir ;;
+ *-*-sysv4*uw2*) add_dir=-L$dir ;;
+ *-*-sysv5OpenUNIX* | *-*-sysv5UnixWare7.[01].[10]* | \
+ *-*-unixware7*) add_dir=-L$dir ;;
+ *-*-darwin* )
+ # if the lib is a (non-dlopened) module then we cannot
+ # link against it, someone is ignoring the earlier warnings
+ if /usr/bin/file -L $add 2> /dev/null |
+ $GREP ": [^:]* bundle" >/dev/null; then
+ if test "X$dlopenmodule" != "X$lib"; then
+ $ECHO "*** Warning: lib $linklib is a module, not a shared library"
+ if test -z "$old_library"; then
+ echo
+ echo "*** And there doesn't seem to be a static archive available"
+ echo "*** The link will probably fail, sorry"
+ else
+ add=$dir/$old_library
+ fi
+ elif test -n "$old_library"; then
+ add=$dir/$old_library
+ fi
+ fi
+ esac
+ elif test no = "$hardcode_minus_L"; then
+ case $host in
+ *-*-sunos*) add_shlibpath=$dir ;;
+ esac
+ add_dir=-L$dir
+ add=-l$name
+ elif test no = "$hardcode_shlibpath_var"; then
+ add_shlibpath=$dir
+ add=-l$name
+ else
+ lib_linked=no
+ fi
+ ;;
+ relink)
+ if test yes = "$hardcode_direct" &&
+ test no = "$hardcode_direct_absolute"; then
+ add=$dir/$linklib
+ elif test yes = "$hardcode_minus_L"; then
+ add_dir=-L$absdir
+ # Try looking first in the location we're being installed to.
+ if test -n "$inst_prefix_dir"; then
+ case $libdir in
+ [\\/]*)
+ func_append add_dir " -L$inst_prefix_dir$libdir"
+ ;;
+ esac
+ fi
+ add=-l$name
+ elif test yes = "$hardcode_shlibpath_var"; then
+ add_shlibpath=$dir
+ add=-l$name
+ else
+ lib_linked=no
+ fi
+ ;;
+ *) lib_linked=no ;;
+ esac
+
+ if test yes != "$lib_linked"; then
+ func_fatal_configuration "unsupported hardcode properties"
+ fi
+
+ if test -n "$add_shlibpath"; then
+ case :$compile_shlibpath: in
+ *":$add_shlibpath:"*) ;;
+ *) func_append compile_shlibpath "$add_shlibpath:" ;;
+ esac
+ fi
+ if test prog = "$linkmode"; then
+ test -n "$add_dir" && compile_deplibs="$add_dir $compile_deplibs"
+ test -n "$add" && compile_deplibs="$add $compile_deplibs"
+ else
+ test -n "$add_dir" && deplibs="$add_dir $deplibs"
+ test -n "$add" && deplibs="$add $deplibs"
+ if test yes != "$hardcode_direct" &&
+ test yes != "$hardcode_minus_L" &&
+ test yes = "$hardcode_shlibpath_var"; then
+ case :$finalize_shlibpath: in
+ *":$libdir:"*) ;;
+ *) func_append finalize_shlibpath "$libdir:" ;;
+ esac
+ fi
+ fi
+ fi
+
+ if test prog = "$linkmode" || test relink = "$opt_mode"; then
+ add_shlibpath=
+ add_dir=
+ add=
+ # Finalize command for both is simple: just hardcode it.
+ if test yes = "$hardcode_direct" &&
+ test no = "$hardcode_direct_absolute"; then
+ add=$libdir/$linklib
+ elif test yes = "$hardcode_minus_L"; then
+ add_dir=-L$libdir
+ add=-l$name
+ elif test yes = "$hardcode_shlibpath_var"; then
+ case :$finalize_shlibpath: in
+ *":$libdir:"*) ;;
+ *) func_append finalize_shlibpath "$libdir:" ;;
+ esac
+ add=-l$name
+ elif test yes = "$hardcode_automatic"; then
+ if test -n "$inst_prefix_dir" &&
+ test -f "$inst_prefix_dir$libdir/$linklib"; then
+ add=$inst_prefix_dir$libdir/$linklib
+ else
+ add=$libdir/$linklib
+ fi
+ else
+ # We cannot seem to hardcode it, guess we'll fake it.
+ add_dir=-L$libdir
+ # Try looking first in the location we're being installed to.
+ if test -n "$inst_prefix_dir"; then
+ case $libdir in
+ [\\/]*)
+ func_append add_dir " -L$inst_prefix_dir$libdir"
+ ;;
+ esac
+ fi
+ add=-l$name
+ fi
+
+ if test prog = "$linkmode"; then
+ test -n "$add_dir" && finalize_deplibs="$add_dir $finalize_deplibs"
+ test -n "$add" && finalize_deplibs="$add $finalize_deplibs"
+ else
+ test -n "$add_dir" && deplibs="$add_dir $deplibs"
+ test -n "$add" && deplibs="$add $deplibs"
+ fi
+ fi
+ elif test prog = "$linkmode"; then
+ # Here we assume that one of hardcode_direct or hardcode_minus_L
+ # is not unsupported. This is valid on all known static and
+ # shared platforms.
+ if test unsupported != "$hardcode_direct"; then
+ test -n "$old_library" && linklib=$old_library
+ compile_deplibs="$dir/$linklib $compile_deplibs"
+ finalize_deplibs="$dir/$linklib $finalize_deplibs"
+ else
+ compile_deplibs="-l$name -L$dir $compile_deplibs"
+ finalize_deplibs="-l$name -L$dir $finalize_deplibs"
+ fi
+ elif test yes = "$build_libtool_libs"; then
+ # Not a shared library
+ if test pass_all != "$deplibs_check_method"; then
+ # We're trying link a shared library against a static one
+ # but the system doesn't support it.
+
+ # Just print a warning and add the library to dependency_libs so
+ # that the program can be linked against the static library.
+ echo
+ $ECHO "*** Warning: This system cannot link to static lib archive $lib."
+ echo "*** I have the capability to make that library automatically link in when"
+ echo "*** you link to this library. But I can only do this if you have a"
+ echo "*** shared version of the library, which you do not appear to have."
+ if test yes = "$module"; then
+ echo "*** But as you try to build a module library, libtool will still create "
+ echo "*** a static module, that should work as long as the dlopening application"
+ echo "*** is linked with the -dlopen flag to resolve symbols at runtime."
+ if test -z "$global_symbol_pipe"; then
+ echo
+ echo "*** However, this would only work if libtool was able to extract symbol"
+ echo "*** lists from a program, using 'nm' or equivalent, but libtool could"
+ echo "*** not find such a program. So, this module is probably useless."
+ echo "*** 'nm' from GNU binutils and a full rebuild may help."
+ fi
+ if test no = "$build_old_libs"; then
+ build_libtool_libs=module
+ build_old_libs=yes
+ else
+ build_libtool_libs=no
+ fi
+ fi
+ else
+ deplibs="$dir/$old_library $deplibs"
+ link_static=yes
+ fi
+ fi # link shared/static library?
+
+ if test lib = "$linkmode"; then
+ if test -n "$dependency_libs" &&
+ { test yes != "$hardcode_into_libs" ||
+ test yes = "$build_old_libs" ||
+ test yes = "$link_static"; }; then
+ # Extract -R from dependency_libs
+ temp_deplibs=
+ for libdir in $dependency_libs; do
+ case $libdir in
+ -R*) func_stripname '-R' '' "$libdir"
+ temp_xrpath=$func_stripname_result
+ case " $xrpath " in
+ *" $temp_xrpath "*) ;;
+ *) func_append xrpath " $temp_xrpath";;
+ esac;;
+ *) func_append temp_deplibs " $libdir";;
+ esac
+ done
+ dependency_libs=$temp_deplibs
+ fi
+
+ func_append newlib_search_path " $absdir"
+ # Link against this library
+ test no = "$link_static" && newdependency_libs="$abs_ladir/$laname $newdependency_libs"
+ # ... and its dependency_libs
+ tmp_libs=
+ for deplib in $dependency_libs; do
+ newdependency_libs="$deplib $newdependency_libs"
+ case $deplib in
+ -L*) func_stripname '-L' '' "$deplib"
+ func_resolve_sysroot "$func_stripname_result";;
+ *) func_resolve_sysroot "$deplib" ;;
+ esac
+ if $opt_preserve_dup_deps; then
+ case "$tmp_libs " in
+ *" $func_resolve_sysroot_result "*)
+ func_append specialdeplibs " $func_resolve_sysroot_result" ;;
+ esac
+ fi
+ func_append tmp_libs " $func_resolve_sysroot_result"
+ done
+
+ if test no != "$link_all_deplibs"; then
+ # Add the search paths of all dependency libraries
+ for deplib in $dependency_libs; do
+ path=
+ case $deplib in
+ -L*) path=$deplib ;;
+ *.la)
+ func_resolve_sysroot "$deplib"
+ deplib=$func_resolve_sysroot_result
+ func_dirname "$deplib" "" "."
+ dir=$func_dirname_result
+ # We need an absolute path.
+ case $dir in
+ [\\/]* | [A-Za-z]:[\\/]*) absdir=$dir ;;
+ *)
+ absdir=`cd "$dir" && pwd`
+ if test -z "$absdir"; then
+ func_warning "cannot determine absolute directory name of '$dir'"
+ absdir=$dir
+ fi
+ ;;
+ esac
+ if $GREP "^installed=no" $deplib > /dev/null; then
+ case $host in
+ *-*-darwin*)
+ depdepl=
+ eval deplibrary_names=`$SED -n -e 's/^library_names=\(.*\)$/\1/p' $deplib`
+ if test -n "$deplibrary_names"; then
+ for tmp in $deplibrary_names; do
+ depdepl=$tmp
+ done
+ if test -f "$absdir/$objdir/$depdepl"; then
+ depdepl=$absdir/$objdir/$depdepl
+ darwin_install_name=`$OTOOL -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
+ if test -z "$darwin_install_name"; then
+ darwin_install_name=`$OTOOL64 -L $depdepl | awk '{if (NR == 2) {print $1;exit}}'`
+ fi
+ func_append compiler_flags " $wl-dylib_file $wl$darwin_install_name:$depdepl"
+ func_append linker_flags " -dylib_file $darwin_install_name:$depdepl"
+ path=
+ fi
+ fi
+ ;;
+ *)
+ path=-L$absdir/$objdir
+ ;;
+ esac
+ else
+ eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $deplib`
+ test -z "$libdir" && \
+ func_fatal_error "'$deplib' is not a valid libtool archive"
+ test "$absdir" != "$libdir" && \
+ func_warning "'$deplib' seems to be moved"
+
+ path=-L$absdir
+ fi
+ ;;
+ esac
+ case " $deplibs " in
+ *" $path "*) ;;
+ *) deplibs="$path $deplibs" ;;
+ esac
+ done
+ fi # link_all_deplibs != no
+ fi # linkmode = lib
+ done # for deplib in $libs
+ if test link = "$pass"; then
+ if test prog = "$linkmode"; then
+ compile_deplibs="$new_inherited_linker_flags $compile_deplibs"
+ finalize_deplibs="$new_inherited_linker_flags $finalize_deplibs"
+ else
+ compiler_flags="$compiler_flags "`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+ fi
+ fi
+ dependency_libs=$newdependency_libs
+ if test dlpreopen = "$pass"; then
+ # Link the dlpreopened libraries before other libraries
+ for deplib in $save_deplibs; do
+ deplibs="$deplib $deplibs"
+ done
+ fi
+ if test dlopen != "$pass"; then
+ test conv = "$pass" || {
+ # Make sure lib_search_path contains only unique directories.
+ lib_search_path=
+ for dir in $newlib_search_path; do
+ case "$lib_search_path " in
+ *" $dir "*) ;;
+ *) func_append lib_search_path " $dir" ;;
+ esac
+ done
+ newlib_search_path=
+ }
+
+ if test prog,link = "$linkmode,$pass"; then
+ vars="compile_deplibs finalize_deplibs"
+ else
+ vars=deplibs
+ fi
+ for var in $vars dependency_libs; do
+ # Add libraries to $var in reverse order
+ eval tmp_libs=\"\$$var\"
+ new_libs=
+ for deplib in $tmp_libs; do
+ # FIXME: Pedantically, this is the right thing to do, so
+ # that some nasty dependency loop isn't accidentally
+ # broken:
+ #new_libs="$deplib $new_libs"
+ # Pragmatically, this seems to cause very few problems in
+ # practice:
+ case $deplib in
+ -L*) new_libs="$deplib $new_libs" ;;
+ -R*) ;;
+ *)
+ # And here is the reason: when a library appears more
+ # than once as an explicit dependence of a library, or
+ # is implicitly linked in more than once by the
+ # compiler, it is considered special, and multiple
+ # occurrences thereof are not removed. Compare this
+ # with having the same library being listed as a
+ # dependency of multiple other libraries: in this case,
+ # we know (pedantically, we assume) the library does not
+ # need to be listed more than once, so we keep only the
+ # last copy. This is not always right, but it is rare
+ # enough that we require users that really mean to play
+ # such unportable linking tricks to link the library
+ # using -Wl,-lname, so that libtool does not consider it
+ # for duplicate removal.
+ case " $specialdeplibs " in
+ *" $deplib "*) new_libs="$deplib $new_libs" ;;
+ *)
+ case " $new_libs " in
+ *" $deplib "*) ;;
+ *) new_libs="$deplib $new_libs" ;;
+ esac
+ ;;
+ esac
+ ;;
+ esac
+ done
+ tmp_libs=
+ for deplib in $new_libs; do
+ case $deplib in
+ -L*)
+ case " $tmp_libs " in
+ *" $deplib "*) ;;
+ *) func_append tmp_libs " $deplib" ;;
+ esac
+ ;;
+ *) func_append tmp_libs " $deplib" ;;
+ esac
+ done
+ eval $var=\"$tmp_libs\"
+ done # for var
+ fi
+
+ # Add Sun CC postdeps if required:
+ test CXX = "$tagname" && {
+ case $host_os in
+ linux*)
+ case `$CC -V 2>&1 | sed 5q` in
+ *Sun\ C*) # Sun C++ 5.9
+ func_suncc_cstd_abi
+
+ if test no != "$suncc_use_cstd_abi"; then
+ func_append postdeps ' -library=Cstd -library=Crun'
+ fi
+ ;;
+ esac
+ ;;
+
+ solaris*)
+ func_cc_basename "$CC"
+ case $func_cc_basename_result in
+ CC* | sunCC*)
+ func_suncc_cstd_abi
+
+ if test no != "$suncc_use_cstd_abi"; then
+ func_append postdeps ' -library=Cstd -library=Crun'
+ fi
+ ;;
+ esac
+ ;;
+ esac
+ }
+
+ # Last step: remove runtime libs from dependency_libs
+ # (they stay in deplibs)
+ tmp_libs=
+ for i in $dependency_libs; do
+ case " $predeps $postdeps $compiler_lib_search_path " in
+ *" $i "*)
+ i=
+ ;;
+ esac
+ if test -n "$i"; then
+ func_append tmp_libs " $i"
+ fi
+ done
+ dependency_libs=$tmp_libs
+ done # for pass
+ if test prog = "$linkmode"; then
+ dlfiles=$newdlfiles
+ fi
+ if test prog = "$linkmode" || test lib = "$linkmode"; then
+ dlprefiles=$newdlprefiles
+ fi
+
+ case $linkmode in
+ oldlib)
+ if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
+ func_warning "'-dlopen' is ignored for archives"
+ fi
+
+ case " $deplibs" in
+ *\ -l* | *\ -L*)
+ func_warning "'-l' and '-L' are ignored for archives" ;;
+ esac
+
+ test -n "$rpath" && \
+ func_warning "'-rpath' is ignored for archives"
+
+ test -n "$xrpath" && \
+ func_warning "'-R' is ignored for archives"
+
+ test -n "$vinfo" && \
+ func_warning "'-version-info/-version-number' is ignored for archives"
+
+ test -n "$release" && \
+ func_warning "'-release' is ignored for archives"
+
+ test -n "$export_symbols$export_symbols_regex" && \
+ func_warning "'-export-symbols' is ignored for archives"
+
+ # Now set the variables for building old libraries.
+ build_libtool_libs=no
+ oldlibs=$output
+ func_append objs "$old_deplibs"
+ ;;
+
+ lib)
+ # Make sure we only generate libraries of the form 'libNAME.la'.
+ case $outputname in
+ lib*)
+ func_stripname 'lib' '.la' "$outputname"
+ name=$func_stripname_result
+ eval shared_ext=\"$shrext_cmds\"
+ eval libname=\"$libname_spec\"
+ ;;
+ *)
+ test no = "$module" \
+ && func_fatal_help "libtool library '$output' must begin with 'lib'"
+
+ if test no != "$need_lib_prefix"; then
+ # Add the "lib" prefix for modules if required
+ func_stripname '' '.la' "$outputname"
+ name=$func_stripname_result
+ eval shared_ext=\"$shrext_cmds\"
+ eval libname=\"$libname_spec\"
+ else
+ func_stripname '' '.la' "$outputname"
+ libname=$func_stripname_result
+ fi
+ ;;
+ esac
+
+ if test -n "$objs"; then
+ if test pass_all != "$deplibs_check_method"; then
+ func_fatal_error "cannot build libtool library '$output' from non-libtool objects on this host:$objs"
+ else
+ echo
+ $ECHO "*** Warning: Linking the shared library $output against the non-libtool"
+ $ECHO "*** objects $objs is not portable!"
+ func_append libobjs " $objs"
+ fi
+ fi
+
+ test no = "$dlself" \
+ || func_warning "'-dlopen self' is ignored for libtool libraries"
+
+ set dummy $rpath
+ shift
+ test 1 -lt "$#" \
+ && func_warning "ignoring multiple '-rpath's for a libtool library"
+
+ install_libdir=$1
+
+ oldlibs=
+ if test -z "$rpath"; then
+ if test yes = "$build_libtool_libs"; then
+ # Building a libtool convenience library.
+ # Some compilers have problems with a '.al' extension so
+ # convenience libraries should have the same extension an
+ # archive normally would.
+ oldlibs="$output_objdir/$libname.$libext $oldlibs"
+ build_libtool_libs=convenience
+ build_old_libs=yes
+ fi
+
+ test -n "$vinfo" && \
+ func_warning "'-version-info/-version-number' is ignored for convenience libraries"
+
+ test -n "$release" && \
+ func_warning "'-release' is ignored for convenience libraries"
+ else
+
+ # Parse the version information argument.
+ save_ifs=$IFS; IFS=:
+ set dummy $vinfo 0 0 0
+ shift
+ IFS=$save_ifs
+
+ test -n "$7" && \
+ func_fatal_help "too many parameters to '-version-info'"
+
+ # convert absolute version numbers to libtool ages
+ # this retains compatibility with .la files and attempts
+ # to make the code below a bit more comprehensible
+
+ case $vinfo_number in
+ yes)
+ number_major=$1
+ number_minor=$2
+ number_revision=$3
+ #
+ # There are really only two kinds -- those that
+ # use the current revision as the major version
+ # and those that subtract age and use age as
+ # a minor version. But, then there is irix
+ # that has an extra 1 added just for fun
+ #
+ case $version_type in
+ # correct linux to gnu/linux during the next big refactor
+ darwin|freebsd-elf|linux|osf|windows|none)
+ func_arith $number_major + $number_minor
+ current=$func_arith_result
+ age=$number_minor
+ revision=$number_revision
+ ;;
+ freebsd-aout|qnx|sunos)
+ current=$number_major
+ revision=$number_minor
+ age=0
+ ;;
+ irix|nonstopux)
+ func_arith $number_major + $number_minor
+ current=$func_arith_result
+ age=$number_minor
+ revision=$number_minor
+ lt_irix_increment=no
+ ;;
+ esac
+ ;;
+ no)
+ current=$1
+ revision=$2
+ age=$3
+ ;;
+ esac
+
+ # Check that each of the things are valid numbers.
+ case $current in
+ 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+ *)
+ func_error "CURRENT '$current' must be a nonnegative integer"
+ func_fatal_error "'$vinfo' is not valid version information"
+ ;;
+ esac
+
+ case $revision in
+ 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+ *)
+ func_error "REVISION '$revision' must be a nonnegative integer"
+ func_fatal_error "'$vinfo' is not valid version information"
+ ;;
+ esac
+
+ case $age in
+ 0|[1-9]|[1-9][0-9]|[1-9][0-9][0-9]|[1-9][0-9][0-9][0-9]|[1-9][0-9][0-9][0-9][0-9]) ;;
+ *)
+ func_error "AGE '$age' must be a nonnegative integer"
+ func_fatal_error "'$vinfo' is not valid version information"
+ ;;
+ esac
+
+ if test "$age" -gt "$current"; then
+ func_error "AGE '$age' is greater than the current interface number '$current'"
+ func_fatal_error "'$vinfo' is not valid version information"
+ fi
+
+ # Calculate the version variables.
+ major=
+ versuffix=
+ verstring=
+ case $version_type in
+ none) ;;
+
+ darwin)
+ # Like Linux, but with the current version available in
+ # verstring for coding it into the library header
+ func_arith $current - $age
+ major=.$func_arith_result
+ versuffix=$major.$age.$revision
+ # Darwin ld doesn't like 0 for these options...
+ func_arith $current + 1
+ minor_current=$func_arith_result
+ xlcverstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision"
+ verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
+ # On Darwin other compilers
+ case $CC in
+ nagfor*)
+ verstring="$wl-compatibility_version $wl$minor_current $wl-current_version $wl$minor_current.$revision"
+ ;;
+ *)
+ verstring="-compatibility_version $minor_current -current_version $minor_current.$revision"
+ ;;
+ esac
+ ;;
+
+ freebsd-aout)
+ major=.$current
+ versuffix=.$current.$revision
+ ;;
+
+ freebsd-elf)
+ func_arith $current - $age
+ major=.$func_arith_result
+ versuffix=$major.$age.$revision
+ ;;
+
+ irix | nonstopux)
+ if test no = "$lt_irix_increment"; then
+ func_arith $current - $age
+ else
+ func_arith $current - $age + 1
+ fi
+ major=$func_arith_result
+
+ case $version_type in
+ nonstopux) verstring_prefix=nonstopux ;;
+ *) verstring_prefix=sgi ;;
+ esac
+ verstring=$verstring_prefix$major.$revision
+
+ # Add in all the interfaces that we are compatible with.
+ loop=$revision
+ while test 0 -ne "$loop"; do
+ func_arith $revision - $loop
+ iface=$func_arith_result
+ func_arith $loop - 1
+ loop=$func_arith_result
+ verstring=$verstring_prefix$major.$iface:$verstring
+ done
+
+ # Before this point, $major must not contain '.'.
+ major=.$major
+ versuffix=$major.$revision
+ ;;
+
+ linux) # correct to gnu/linux during the next big refactor
+ func_arith $current - $age
+ major=.$func_arith_result
+ versuffix=$major.$age.$revision
+ ;;
+
+ osf)
+ func_arith $current - $age
+ major=.$func_arith_result
+ versuffix=.$current.$age.$revision
+ verstring=$current.$age.$revision
+
+ # Add in all the interfaces that we are compatible with.
+ loop=$age
+ while test 0 -ne "$loop"; do
+ func_arith $current - $loop
+ iface=$func_arith_result
+ func_arith $loop - 1
+ loop=$func_arith_result
+ verstring=$verstring:$iface.0
+ done
+
+ # Make executables depend on our current version.
+ func_append verstring ":$current.0"
+ ;;
+
+ qnx)
+ major=.$current
+ versuffix=.$current
+ ;;
+
+ sco)
+ major=.$current
+ versuffix=.$current
+ ;;
+
+ sunos)
+ major=.$current
+ versuffix=.$current.$revision
+ ;;
+
+ windows)
+ # Use '-' rather than '.', since we only want one
+ # extension on DOS 8.3 file systems.
+ func_arith $current - $age
+ major=$func_arith_result
+ versuffix=-$major
+ ;;
+
+ *)
+ func_fatal_configuration "unknown library version type '$version_type'"
+ ;;
+ esac
+
+ # Clear the version info if we defaulted, and they specified a release.
+ if test -z "$vinfo" && test -n "$release"; then
+ major=
+ case $version_type in
+ darwin)
+ # we can't check for "0.0" in archive_cmds due to quoting
+ # problems, so we reset it completely
+ verstring=
+ ;;
+ *)
+ verstring=0.0
+ ;;
+ esac
+ if test no = "$need_version"; then
+ versuffix=
+ else
+ versuffix=.0.0
+ fi
+ fi
+
+ # Remove version info from name if versioning should be avoided
+ if test yes,no = "$avoid_version,$need_version"; then
+ major=
+ versuffix=
+ verstring=
+ fi
+
+ # Check to see if the archive will have undefined symbols.
+ if test yes = "$allow_undefined"; then
+ if test unsupported = "$allow_undefined_flag"; then
+ if test yes = "$build_old_libs"; then
+ func_warning "undefined symbols not allowed in $host shared libraries; building static only"
+ build_libtool_libs=no
+ else
+ func_fatal_error "can't build $host shared library unless -no-undefined is specified"
+ fi
+ fi
+ else
+ # Don't allow undefined symbols.
+ allow_undefined_flag=$no_undefined_flag
+ fi
+
+ fi
+
+ func_generate_dlsyms "$libname" "$libname" :
+ func_append libobjs " $symfileobj"
+ test " " = "$libobjs" && libobjs=
+
+ if test relink != "$opt_mode"; then
+ # Remove our outputs, but don't remove object files since they
+ # may have been created when compiling PIC objects.
+ removelist=
+ tempremovelist=`$ECHO "$output_objdir/*"`
+ for p in $tempremovelist; do
+ case $p in
+ *.$objext | *.gcno)
+ ;;
+ $output_objdir/$outputname | $output_objdir/$libname.* | $output_objdir/$libname$release.*)
+ if test -n "$precious_files_regex"; then
+ if $ECHO "$p" | $EGREP -e "$precious_files_regex" >/dev/null 2>&1
+ then
+ continue
+ fi
+ fi
+ func_append removelist " $p"
+ ;;
+ *) ;;
+ esac
+ done
+ test -n "$removelist" && \
+ func_show_eval "${RM}r \$removelist"
+ fi
+
+ # Now set the variables for building old libraries.
+ if test yes = "$build_old_libs" && test convenience != "$build_libtool_libs"; then
+ func_append oldlibs " $output_objdir/$libname.$libext"
+
+ # Transform .lo files to .o files.
+ oldobjs="$objs "`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; $lo2o" | $NL2SP`
+ fi
+
+ # Eliminate all temporary directories.
+ #for path in $notinst_path; do
+ # lib_search_path=`$ECHO "$lib_search_path " | $SED "s% $path % %g"`
+ # deplibs=`$ECHO "$deplibs " | $SED "s% -L$path % %g"`
+ # dependency_libs=`$ECHO "$dependency_libs " | $SED "s% -L$path % %g"`
+ #done
+
+ if test -n "$xrpath"; then
+ # If the user specified any rpath flags, then add them.
+ temp_xrpath=
+ for libdir in $xrpath; do
+ func_replace_sysroot "$libdir"
+ func_append temp_xrpath " -R$func_replace_sysroot_result"
+ case "$finalize_rpath " in
+ *" $libdir "*) ;;
+ *) func_append finalize_rpath " $libdir" ;;
+ esac
+ done
+ if test yes != "$hardcode_into_libs" || test yes = "$build_old_libs"; then
+ dependency_libs="$temp_xrpath $dependency_libs"
+ fi
+ fi
+
+ # Make sure dlfiles contains only unique files that won't be dlpreopened
+ old_dlfiles=$dlfiles
+ dlfiles=
+ for lib in $old_dlfiles; do
+ case " $dlprefiles $dlfiles " in
+ *" $lib "*) ;;
+ *) func_append dlfiles " $lib" ;;
+ esac
+ done
+
+ # Make sure dlprefiles contains only unique files
+ old_dlprefiles=$dlprefiles
+ dlprefiles=
+ for lib in $old_dlprefiles; do
+ case "$dlprefiles " in
+ *" $lib "*) ;;
+ *) func_append dlprefiles " $lib" ;;
+ esac
+ done
+
+ if test yes = "$build_libtool_libs"; then
+ if test -n "$rpath"; then
+ case $host in
+ *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-*-beos* | *-cegcc* | *-*-haiku*)
+ # these systems don't actually have a c library (as such)!
+ ;;
+ *-*-rhapsody* | *-*-darwin1.[012])
+ # Rhapsody C library is in the System framework
+ func_append deplibs " System.ltframework"
+ ;;
+ *-*-netbsd*)
+ # Don't link with libc until the a.out ld.so is fixed.
+ ;;
+ *-*-openbsd* | *-*-freebsd* | *-*-dragonfly*)
+ # Do not include libc due to us having libc/libc_r.
+ ;;
+ *-*-sco3.2v5* | *-*-sco5v6*)
+ # Causes problems with __ctype
+ ;;
+ *-*-sysv4.2uw2* | *-*-sysv5* | *-*-unixware* | *-*-OpenUNIX*)
+ # Compiler inserts libc in the correct place for threads to work
+ ;;
+ *)
+ # Add libc to deplibs on all other systems if necessary.
+ if test yes = "$build_libtool_need_lc"; then
+ func_append deplibs " -lc"
+ fi
+ ;;
+ esac
+ fi
+
+ # Transform deplibs into only deplibs that can be linked in shared.
+ name_save=$name
+ libname_save=$libname
+ release_save=$release
+ versuffix_save=$versuffix
+ major_save=$major
+ # I'm not sure if I'm treating the release correctly. I think
+ # release should show up in the -l (ie -lgmp5) so we don't want to
+ # add it in twice. Is that correct?
+ release=
+ versuffix=
+ major=
+ newdeplibs=
+ droppeddeps=no
+ case $deplibs_check_method in
+ pass_all)
+ # Don't check for shared/static. Everything works.
+ # This might be a little naive. We might want to check
+ # whether the library exists or not. But this is on
+ # osf3 & osf4 and I'm not really sure... Just
+ # implementing what was already the behavior.
+ newdeplibs=$deplibs
+ ;;
+ test_compile)
+ # This code stresses the "libraries are programs" paradigm to its
+ # limits. Maybe even breaks it. We compile a program, linking it
+ # against the deplibs as a proxy for the library. Then we can check
+ # whether they linked in statically or dynamically with ldd.
+ $opt_dry_run || $RM conftest.c
+ cat > conftest.c <<EOF
+ int main() { return 0; }
+EOF
+ $opt_dry_run || $RM conftest
+ if $LTCC $LTCFLAGS -o conftest conftest.c $deplibs; then
+ ldd_output=`ldd conftest`
+ for i in $deplibs; do
+ case $i in
+ -l*)
+ func_stripname -l '' "$i"
+ name=$func_stripname_result
+ if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+ case " $predeps $postdeps " in
+ *" $i "*)
+ func_append newdeplibs " $i"
+ i=
+ ;;
+ esac
+ fi
+ if test -n "$i"; then
+ libname=`eval "\\$ECHO \"$libname_spec\""`
+ deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
+ set dummy $deplib_matches; shift
+ deplib_match=$1
+ if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0; then
+ func_append newdeplibs " $i"
+ else
+ droppeddeps=yes
+ echo
+ $ECHO "*** Warning: dynamic linker does not accept needed library $i."
+ echo "*** I have the capability to make that library automatically link in when"
+ echo "*** you link to this library. But I can only do this if you have a"
+ echo "*** shared version of the library, which I believe you do not have"
+ echo "*** because a test_compile did reveal that the linker did not use it for"
+ echo "*** its dynamic dependency list that programs get resolved with at runtime."
+ fi
+ fi
+ ;;
+ *)
+ func_append newdeplibs " $i"
+ ;;
+ esac
+ done
+ else
+ # Error occurred in the first compile. Let's try to salvage
+ # the situation: Compile a separate program for each library.
+ for i in $deplibs; do
+ case $i in
+ -l*)
+ func_stripname -l '' "$i"
+ name=$func_stripname_result
+ $opt_dry_run || $RM conftest
+ if $LTCC $LTCFLAGS -o conftest conftest.c $i; then
+ ldd_output=`ldd conftest`
+ if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+ case " $predeps $postdeps " in
+ *" $i "*)
+ func_append newdeplibs " $i"
+ i=
+ ;;
+ esac
+ fi
+ if test -n "$i"; then
+ libname=`eval "\\$ECHO \"$libname_spec\""`
+ deplib_matches=`eval "\\$ECHO \"$library_names_spec\""`
+ set dummy $deplib_matches; shift
+ deplib_match=$1
+ if test `expr "$ldd_output" : ".*$deplib_match"` -ne 0; then
+ func_append newdeplibs " $i"
+ else
+ droppeddeps=yes
+ echo
+ $ECHO "*** Warning: dynamic linker does not accept needed library $i."
+ echo "*** I have the capability to make that library automatically link in when"
+ echo "*** you link to this library. But I can only do this if you have a"
+ echo "*** shared version of the library, which you do not appear to have"
+ echo "*** because a test_compile did reveal that the linker did not use this one"
+ echo "*** as a dynamic dependency that programs can get resolved with at runtime."
+ fi
+ fi
+ else
+ droppeddeps=yes
+ echo
+ $ECHO "*** Warning! Library $i is needed by this library but I was not able to"
+ echo "*** make it link in! You will probably need to install it or some"
+ echo "*** library that it depends on before this library will be fully"
+ echo "*** functional. Installing it before continuing would be even better."
+ fi
+ ;;
+ *)
+ func_append newdeplibs " $i"
+ ;;
+ esac
+ done
+ fi
+ ;;
+ file_magic*)
+ set dummy $deplibs_check_method; shift
+ file_magic_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
+ for a_deplib in $deplibs; do
+ case $a_deplib in
+ -l*)
+ func_stripname -l '' "$a_deplib"
+ name=$func_stripname_result
+ if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+ case " $predeps $postdeps " in
+ *" $a_deplib "*)
+ func_append newdeplibs " $a_deplib"
+ a_deplib=
+ ;;
+ esac
+ fi
+ if test -n "$a_deplib"; then
+ libname=`eval "\\$ECHO \"$libname_spec\""`
+ if test -n "$file_magic_glob"; then
+ libnameglob=`func_echo_all "$libname" | $SED -e $file_magic_glob`
+ else
+ libnameglob=$libname
+ fi
+ test yes = "$want_nocaseglob" && nocaseglob=`shopt -p nocaseglob`
+ for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
+ if test yes = "$want_nocaseglob"; then
+ shopt -s nocaseglob
+ potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
+ $nocaseglob
+ else
+ potential_libs=`ls $i/$libnameglob[.-]* 2>/dev/null`
+ fi
+ for potent_lib in $potential_libs; do
+ # Follow soft links.
+ if ls -lLd "$potent_lib" 2>/dev/null |
+ $GREP " -> " >/dev/null; then
+ continue
+ fi
+ # The statement above tries to avoid entering an
+ # endless loop below, in case of cyclic links.
+ # We might still enter an endless loop, since a link
+ # loop can be closed while we follow links,
+ # but so what?
+ potlib=$potent_lib
+ while test -h "$potlib" 2>/dev/null; do
+ potliblink=`ls -ld $potlib | $SED 's/.* -> //'`
+ case $potliblink in
+ [\\/]* | [A-Za-z]:[\\/]*) potlib=$potliblink;;
+ *) potlib=`$ECHO "$potlib" | $SED 's|[^/]*$||'`"$potliblink";;
+ esac
+ done
+ if eval $file_magic_cmd \"\$potlib\" 2>/dev/null |
+ $SED -e 10q |
+ $EGREP "$file_magic_regex" > /dev/null; then
+ func_append newdeplibs " $a_deplib"
+ a_deplib=
+ break 2
+ fi
+ done
+ done
+ fi
+ if test -n "$a_deplib"; then
+ droppeddeps=yes
+ echo
+ $ECHO "*** Warning: linker path does not have real file for library $a_deplib."
+ echo "*** I have the capability to make that library automatically link in when"
+ echo "*** you link to this library. But I can only do this if you have a"
+ echo "*** shared version of the library, which you do not appear to have"
+ echo "*** because I did check the linker path looking for a file starting"
+ if test -z "$potlib"; then
+ $ECHO "*** with $libname but no candidates were found. (...for file magic test)"
+ else
+ $ECHO "*** with $libname and none of the candidates passed a file format test"
+ $ECHO "*** using a file magic. Last file checked: $potlib"
+ fi
+ fi
+ ;;
+ *)
+ # Add a -L argument.
+ func_append newdeplibs " $a_deplib"
+ ;;
+ esac
+ done # Gone through all deplibs.
+ ;;
+ match_pattern*)
+ set dummy $deplibs_check_method; shift
+ match_pattern_regex=`expr "$deplibs_check_method" : "$1 \(.*\)"`
+ for a_deplib in $deplibs; do
+ case $a_deplib in
+ -l*)
+ func_stripname -l '' "$a_deplib"
+ name=$func_stripname_result
+ if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+ case " $predeps $postdeps " in
+ *" $a_deplib "*)
+ func_append newdeplibs " $a_deplib"
+ a_deplib=
+ ;;
+ esac
+ fi
+ if test -n "$a_deplib"; then
+ libname=`eval "\\$ECHO \"$libname_spec\""`
+ for i in $lib_search_path $sys_lib_search_path $shlib_search_path; do
+ potential_libs=`ls $i/$libname[.-]* 2>/dev/null`
+ for potent_lib in $potential_libs; do
+ potlib=$potent_lib # see symlink-check above in file_magic test
+ if eval "\$ECHO \"$potent_lib\"" 2>/dev/null | $SED 10q | \
+ $EGREP "$match_pattern_regex" > /dev/null; then
+ func_append newdeplibs " $a_deplib"
+ a_deplib=
+ break 2
+ fi
+ done
+ done
+ fi
+ if test -n "$a_deplib"; then
+ droppeddeps=yes
+ echo
+ $ECHO "*** Warning: linker path does not have real file for library $a_deplib."
+ echo "*** I have the capability to make that library automatically link in when"
+ echo "*** you link to this library. But I can only do this if you have a"
+ echo "*** shared version of the library, which you do not appear to have"
+ echo "*** because I did check the linker path looking for a file starting"
+ if test -z "$potlib"; then
+ $ECHO "*** with $libname but no candidates were found. (...for regex pattern test)"
+ else
+ $ECHO "*** with $libname and none of the candidates passed a file format test"
+ $ECHO "*** using a regex pattern. Last file checked: $potlib"
+ fi
+ fi
+ ;;
+ *)
+ # Add a -L argument.
+ func_append newdeplibs " $a_deplib"
+ ;;
+ esac
+ done # Gone through all deplibs.
+ ;;
+ none | unknown | *)
+ newdeplibs=
+ tmp_deplibs=`$ECHO " $deplibs" | $SED 's/ -lc$//; s/ -[LR][^ ]*//g'`
+ if test yes = "$allow_libtool_libs_with_static_runtimes"; then
+ for i in $predeps $postdeps; do
+ # can't use Xsed below, because $i might contain '/'
+ tmp_deplibs=`$ECHO " $tmp_deplibs" | $SED "s|$i||"`
+ done
+ fi
+ case $tmp_deplibs in
+ *[!\ \ ]*)
+ echo
+ if test none = "$deplibs_check_method"; then
+ echo "*** Warning: inter-library dependencies are not supported in this platform."
+ else
+ echo "*** Warning: inter-library dependencies are not known to be supported."
+ fi
+ echo "*** All declared inter-library dependencies are being dropped."
+ droppeddeps=yes
+ ;;
+ esac
+ ;;
+ esac
+ versuffix=$versuffix_save
+ major=$major_save
+ release=$release_save
+ libname=$libname_save
+ name=$name_save
+
+ case $host in
+ *-*-rhapsody* | *-*-darwin1.[012])
+ # On Rhapsody replace the C library with the System framework
+ newdeplibs=`$ECHO " $newdeplibs" | $SED 's/ -lc / System.ltframework /'`
+ ;;
+ esac
+
+ if test yes = "$droppeddeps"; then
+ if test yes = "$module"; then
+ echo
+ echo "*** Warning: libtool could not satisfy all declared inter-library"
+ $ECHO "*** dependencies of module $libname. Therefore, libtool will create"
+ echo "*** a static module, that should work as long as the dlopening"
+ echo "*** application is linked with the -dlopen flag."
+ if test -z "$global_symbol_pipe"; then
+ echo
+ echo "*** However, this would only work if libtool was able to extract symbol"
+ echo "*** lists from a program, using 'nm' or equivalent, but libtool could"
+ echo "*** not find such a program. So, this module is probably useless."
+ echo "*** 'nm' from GNU binutils and a full rebuild may help."
+ fi
+ if test no = "$build_old_libs"; then
+ oldlibs=$output_objdir/$libname.$libext
+ build_libtool_libs=module
+ build_old_libs=yes
+ else
+ build_libtool_libs=no
+ fi
+ else
+ echo "*** The inter-library dependencies that have been dropped here will be"
+ echo "*** automatically added whenever a program is linked with this library"
+ echo "*** or is declared to -dlopen it."
+
+ if test no = "$allow_undefined"; then
+ echo
+ echo "*** Since this library must not contain undefined symbols,"
+ echo "*** because either the platform does not support them or"
+ echo "*** it was explicitly requested with -no-undefined,"
+ echo "*** libtool will only create a static version of it."
+ if test no = "$build_old_libs"; then
+ oldlibs=$output_objdir/$libname.$libext
+ build_libtool_libs=module
+ build_old_libs=yes
+ else
+ build_libtool_libs=no
+ fi
+ fi
+ fi
+ fi
+ # Done checking deplibs!
+ deplibs=$newdeplibs
+ fi
+ # Time to change all our "foo.ltframework" stuff back to "-framework foo"
+ case $host in
+ *-*-darwin*)
+ newdeplibs=`$ECHO " $newdeplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+ new_inherited_linker_flags=`$ECHO " $new_inherited_linker_flags" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+ deplibs=`$ECHO " $deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+ ;;
+ esac
+
+ # move library search paths that coincide with paths to not yet
+ # installed libraries to the beginning of the library search list
+ new_libs=
+ for path in $notinst_path; do
+ case " $new_libs " in
+ *" -L$path/$objdir "*) ;;
+ *)
+ case " $deplibs " in
+ *" -L$path/$objdir "*)
+ func_append new_libs " -L$path/$objdir" ;;
+ esac
+ ;;
+ esac
+ done
+ for deplib in $deplibs; do
+ case $deplib in
+ -L*)
+ case " $new_libs " in
+ *" $deplib "*) ;;
+ *) func_append new_libs " $deplib" ;;
+ esac
+ ;;
+ *) func_append new_libs " $deplib" ;;
+ esac
+ done
+ deplibs=$new_libs
+
+ # All the library-specific variables (install_libdir is set above).
+ library_names=
+ old_library=
+ dlname=
+
+ # Test again, we may have decided not to build it any more
+ if test yes = "$build_libtool_libs"; then
+ # Remove $wl instances when linking with ld.
+ # FIXME: should test the right _cmds variable.
+ case $archive_cmds in
+ *\$LD\ *) wl= ;;
+ esac
+ if test yes = "$hardcode_into_libs"; then
+ # Hardcode the library paths
+ hardcode_libdirs=
+ dep_rpath=
+ rpath=$finalize_rpath
+ test relink = "$opt_mode" || rpath=$compile_rpath$rpath
+ for libdir in $rpath; do
+ if test -n "$hardcode_libdir_flag_spec"; then
+ if test -n "$hardcode_libdir_separator"; then
+ func_replace_sysroot "$libdir"
+ libdir=$func_replace_sysroot_result
+ if test -z "$hardcode_libdirs"; then
+ hardcode_libdirs=$libdir
+ else
+ # Just accumulate the unique libdirs.
+ case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+ *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+ ;;
+ *)
+ func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+ ;;
+ esac
+ fi
+ else
+ eval flag=\"$hardcode_libdir_flag_spec\"
+ func_append dep_rpath " $flag"
+ fi
+ elif test -n "$runpath_var"; then
+ case "$perm_rpath " in
+ *" $libdir "*) ;;
+ *) func_append perm_rpath " $libdir" ;;
+ esac
+ fi
+ done
+ # Substitute the hardcoded libdirs into the rpath.
+ if test -n "$hardcode_libdir_separator" &&
+ test -n "$hardcode_libdirs"; then
+ libdir=$hardcode_libdirs
+ eval "dep_rpath=\"$hardcode_libdir_flag_spec\""
+ fi
+ if test -n "$runpath_var" && test -n "$perm_rpath"; then
+ # We should set the runpath_var.
+ rpath=
+ for dir in $perm_rpath; do
+ func_append rpath "$dir:"
+ done
+ eval "$runpath_var='$rpath\$$runpath_var'; export $runpath_var"
+ fi
+ test -n "$dep_rpath" && deplibs="$dep_rpath $deplibs"
+ fi
+
+ shlibpath=$finalize_shlibpath
+ test relink = "$opt_mode" || shlibpath=$compile_shlibpath$shlibpath
+ if test -n "$shlibpath"; then
+ eval "$shlibpath_var='$shlibpath\$$shlibpath_var'; export $shlibpath_var"
+ fi
+
+ # Get the real and link names of the library.
+ eval shared_ext=\"$shrext_cmds\"
+ eval library_names=\"$library_names_spec\"
+ set dummy $library_names
+ shift
+ realname=$1
+ shift
+
+ if test -n "$soname_spec"; then
+ eval soname=\"$soname_spec\"
+ else
+ soname=$realname
+ fi
+ if test -z "$dlname"; then
+ dlname=$soname
+ fi
+
+ lib=$output_objdir/$realname
+ linknames=
+ for link
+ do
+ func_append linknames " $link"
+ done
+
+ # Use standard objects if they are pic
+ test -z "$pic_flag" && libobjs=`$ECHO "$libobjs" | $SP2NL | $SED "$lo2o" | $NL2SP`
+ test "X$libobjs" = "X " && libobjs=
+
+ delfiles=
+ if test -n "$export_symbols" && test -n "$include_expsyms"; then
+ $opt_dry_run || cp "$export_symbols" "$output_objdir/$libname.uexp"
+ export_symbols=$output_objdir/$libname.uexp
+ func_append delfiles " $export_symbols"
+ fi
+
+ orig_export_symbols=
+ case $host_os in
+ cygwin* | mingw* | cegcc*)
+ if test -n "$export_symbols" && test -z "$export_symbols_regex"; then
+ # exporting using user supplied symfile
+ func_dll_def_p "$export_symbols" || {
+ # and it's NOT already a .def file. Must figure out
+ # which of the given symbols are data symbols and tag
+ # them as such. So, trigger use of export_symbols_cmds.
+ # export_symbols gets reassigned inside the "prepare
+ # the list of exported symbols" if statement, so the
+ # include_expsyms logic still works.
+ orig_export_symbols=$export_symbols
+ export_symbols=
+ always_export_symbols=yes
+ }
+ fi
+ ;;
+ esac
+
+ # Prepare the list of exported symbols
+ if test -z "$export_symbols"; then
+ if test yes = "$always_export_symbols" || test -n "$export_symbols_regex"; then
+ func_verbose "generating symbol list for '$libname.la'"
+ export_symbols=$output_objdir/$libname.exp
+ $opt_dry_run || $RM $export_symbols
+ cmds=$export_symbols_cmds
+ save_ifs=$IFS; IFS='~'
+ for cmd1 in $cmds; do
+ IFS=$save_ifs
+ # Take the normal branch if the nm_file_list_spec branch
+ # doesn't work or if tool conversion is not needed.
+ case $nm_file_list_spec~$to_tool_file_cmd in
+ *~func_convert_file_noop | *~func_convert_file_msys_to_w32 | ~*)
+ try_normal_branch=yes
+ eval cmd=\"$cmd1\"
+ func_len " $cmd"
+ len=$func_len_result
+ ;;
+ *)
+ try_normal_branch=no
+ ;;
+ esac
+ if test yes = "$try_normal_branch" \
+ && { test "$len" -lt "$max_cmd_len" \
+ || test "$max_cmd_len" -le -1; }
+ then
+ func_show_eval "$cmd" 'exit $?'
+ skipped_export=false
+ elif test -n "$nm_file_list_spec"; then
+ func_basename "$output"
+ output_la=$func_basename_result
+ save_libobjs=$libobjs
+ save_output=$output
+ output=$output_objdir/$output_la.nm
+ func_to_tool_file "$output"
+ libobjs=$nm_file_list_spec$func_to_tool_file_result
+ func_append delfiles " $output"
+ func_verbose "creating $NM input file list: $output"
+ for obj in $save_libobjs; do
+ func_to_tool_file "$obj"
+ $ECHO "$func_to_tool_file_result"
+ done > "$output"
+ eval cmd=\"$cmd1\"
+ func_show_eval "$cmd" 'exit $?'
+ output=$save_output
+ libobjs=$save_libobjs
+ skipped_export=false
+ else
+ # The command line is too long to execute in one step.
+ func_verbose "using reloadable object file for export list..."
+ skipped_export=:
+ # Break out early, otherwise skipped_export may be
+ # set to false by a later but shorter cmd.
+ break
+ fi
+ done
+ IFS=$save_ifs
+ if test -n "$export_symbols_regex" && test : != "$skipped_export"; then
+ func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
+ func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
+ fi
+ fi
+ fi
+
+ if test -n "$export_symbols" && test -n "$include_expsyms"; then
+ tmp_export_symbols=$export_symbols
+ test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols
+ $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
+ fi
+
+ if test : != "$skipped_export" && test -n "$orig_export_symbols"; then
+ # The given exports_symbols file has to be filtered, so filter it.
+ func_verbose "filter symbol list for '$libname.la' to tag DATA exports"
+ # FIXME: $output_objdir/$libname.filter potentially contains lots of
+ # 's' commands, which not all seds can handle. GNU sed should be fine
+ # though. Also, the filter scales superlinearly with the number of
+ # global variables. join(1) would be nice here, but unfortunately
+ # isn't a blessed tool.
+ $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
+ func_append delfiles " $export_symbols $output_objdir/$libname.filter"
+ export_symbols=$output_objdir/$libname.def
+ $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
+ fi
+
+ tmp_deplibs=
+ for test_deplib in $deplibs; do
+ case " $convenience " in
+ *" $test_deplib "*) ;;
+ *)
+ func_append tmp_deplibs " $test_deplib"
+ ;;
+ esac
+ done
+ deplibs=$tmp_deplibs
+
+ if test -n "$convenience"; then
+ if test -n "$whole_archive_flag_spec" &&
+ test yes = "$compiler_needs_object" &&
+ test -z "$libobjs"; then
+ # extract the archives, so we have objects to list.
+ # TODO: could optimize this to just extract one archive.
+ whole_archive_flag_spec=
+ fi
+ if test -n "$whole_archive_flag_spec"; then
+ save_libobjs=$libobjs
+ eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
+ test "X$libobjs" = "X " && libobjs=
+ else
+ gentop=$output_objdir/${outputname}x
+ func_append generated " $gentop"
+
+ func_extract_archives $gentop $convenience
+ func_append libobjs " $func_extract_archives_result"
+ test "X$libobjs" = "X " && libobjs=
+ fi
+ fi
+
+ if test yes = "$thread_safe" && test -n "$thread_safe_flag_spec"; then
+ eval flag=\"$thread_safe_flag_spec\"
+ func_append linker_flags " $flag"
+ fi
+
+ # Make a backup of the uninstalled library when relinking
+ if test relink = "$opt_mode"; then
+ $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}U && $MV $realname ${realname}U)' || exit $?
+ fi
+
+ # Do each of the archive commands.
+ if test yes = "$module" && test -n "$module_cmds"; then
+ if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
+ eval test_cmds=\"$module_expsym_cmds\"
+ cmds=$module_expsym_cmds
+ else
+ eval test_cmds=\"$module_cmds\"
+ cmds=$module_cmds
+ fi
+ else
+ if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
+ eval test_cmds=\"$archive_expsym_cmds\"
+ cmds=$archive_expsym_cmds
+ else
+ eval test_cmds=\"$archive_cmds\"
+ cmds=$archive_cmds
+ fi
+ fi
+
+ if test : != "$skipped_export" &&
+ func_len " $test_cmds" &&
+ len=$func_len_result &&
+ test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
+ :
+ else
+ # The command line is too long to link in one step, link piecewise
+ # or, if using GNU ld and skipped_export is not :, use a linker
+ # script.
+
+ # Save the value of $output and $libobjs because we want to
+ # use them later. If we have whole_archive_flag_spec, we
+ # want to use save_libobjs as it was before
+ # whole_archive_flag_spec was expanded, because we can't
+ # assume the linker understands whole_archive_flag_spec.
+ # This may have to be revisited, in case too many
+ # convenience libraries get linked in and end up exceeding
+ # the spec.
+ if test -z "$convenience" || test -z "$whole_archive_flag_spec"; then
+ save_libobjs=$libobjs
+ fi
+ save_output=$output
+ func_basename "$output"
+ output_la=$func_basename_result
+
+ # Clear the reloadable object creation command queue and
+ # initialize k to one.
+ test_cmds=
+ concat_cmds=
+ objlist=
+ last_robj=
+ k=1
+
+ if test -n "$save_libobjs" && test : != "$skipped_export" && test yes = "$with_gnu_ld"; then
+ output=$output_objdir/$output_la.lnkscript
+ func_verbose "creating GNU ld script: $output"
+ echo 'INPUT (' > $output
+ for obj in $save_libobjs
+ do
+ func_to_tool_file "$obj"
+ $ECHO "$func_to_tool_file_result" >> $output
+ done
+ echo ')' >> $output
+ func_append delfiles " $output"
+ func_to_tool_file "$output"
+ output=$func_to_tool_file_result
+ elif test -n "$save_libobjs" && test : != "$skipped_export" && test -n "$file_list_spec"; then
+ output=$output_objdir/$output_la.lnk
+ func_verbose "creating linker input file list: $output"
+ : > $output
+ set x $save_libobjs
+ shift
+ firstobj=
+ if test yes = "$compiler_needs_object"; then
+ firstobj="$1 "
+ shift
+ fi
+ for obj
+ do
+ func_to_tool_file "$obj"
+ $ECHO "$func_to_tool_file_result" >> $output
+ done
+ func_append delfiles " $output"
+ func_to_tool_file "$output"
+ output=$firstobj\"$file_list_spec$func_to_tool_file_result\"
+ else
+ if test -n "$save_libobjs"; then
+ func_verbose "creating reloadable object files..."
+ output=$output_objdir/$output_la-$k.$objext
+ eval test_cmds=\"$reload_cmds\"
+ func_len " $test_cmds"
+ len0=$func_len_result
+ len=$len0
+
+ # Loop over the list of objects to be linked.
+ for obj in $save_libobjs
+ do
+ func_len " $obj"
+ func_arith $len + $func_len_result
+ len=$func_arith_result
+ if test -z "$objlist" ||
+ test "$len" -lt "$max_cmd_len"; then
+ func_append objlist " $obj"
+ else
+ # The command $test_cmds is almost too long, add a
+ # command to the queue.
+ if test 1 -eq "$k"; then
+ # The first file doesn't have a previous command to add.
+ reload_objs=$objlist
+ eval concat_cmds=\"$reload_cmds\"
+ else
+ # All subsequent reloadable object files will link in
+ # the last one created.
+ reload_objs="$objlist $last_robj"
+ eval concat_cmds=\"\$concat_cmds~$reload_cmds~\$RM $last_robj\"
+ fi
+ last_robj=$output_objdir/$output_la-$k.$objext
+ func_arith $k + 1
+ k=$func_arith_result
+ output=$output_objdir/$output_la-$k.$objext
+ objlist=" $obj"
+ func_len " $last_robj"
+ func_arith $len0 + $func_len_result
+ len=$func_arith_result
+ fi
+ done
+ # Handle the remaining objects by creating one last
+ # reloadable object file. All subsequent reloadable object
+ # files will link in the last one created.
+ test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+ reload_objs="$objlist $last_robj"
+ eval concat_cmds=\"\$concat_cmds$reload_cmds\"
+ if test -n "$last_robj"; then
+ eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
+ fi
+ func_append delfiles " $output"
+
+ else
+ output=
+ fi
+
+ ${skipped_export-false} && {
+ func_verbose "generating symbol list for '$libname.la'"
+ export_symbols=$output_objdir/$libname.exp
+ $opt_dry_run || $RM $export_symbols
+ libobjs=$output
+ # Append the command to create the export file.
+ test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+ eval concat_cmds=\"\$concat_cmds$export_symbols_cmds\"
+ if test -n "$last_robj"; then
+ eval concat_cmds=\"\$concat_cmds~\$RM $last_robj\"
+ fi
+ }
+
+ test -n "$save_libobjs" &&
+ func_verbose "creating a temporary reloadable object file: $output"
+
+ # Loop through the commands generated above and execute them.
+ save_ifs=$IFS; IFS='~'
+ for cmd in $concat_cmds; do
+ IFS=$save_ifs
+ $opt_quiet || {
+ func_quote_for_expand "$cmd"
+ eval "func_echo $func_quote_for_expand_result"
+ }
+ $opt_dry_run || eval "$cmd" || {
+ lt_exit=$?
+
+ # Restore the uninstalled library and exit
+ if test relink = "$opt_mode"; then
+ ( cd "$output_objdir" && \
+ $RM "${realname}T" && \
+ $MV "${realname}U" "$realname" )
+ fi
+
+ exit $lt_exit
+ }
+ done
+ IFS=$save_ifs
+
+ if test -n "$export_symbols_regex" && ${skipped_export-false}; then
+ func_show_eval '$EGREP -e "$export_symbols_regex" "$export_symbols" > "${export_symbols}T"'
+ func_show_eval '$MV "${export_symbols}T" "$export_symbols"'
+ fi
+ fi
+
+ ${skipped_export-false} && {
+ if test -n "$export_symbols" && test -n "$include_expsyms"; then
+ tmp_export_symbols=$export_symbols
+ test -n "$orig_export_symbols" && tmp_export_symbols=$orig_export_symbols
+ $opt_dry_run || eval '$ECHO "$include_expsyms" | $SP2NL >> "$tmp_export_symbols"'
+ fi
+
+ if test -n "$orig_export_symbols"; then
+ # The given exports_symbols file has to be filtered, so filter it.
+ func_verbose "filter symbol list for '$libname.la' to tag DATA exports"
+ # FIXME: $output_objdir/$libname.filter potentially contains lots of
+ # 's' commands, which not all seds can handle. GNU sed should be fine
+ # though. Also, the filter scales superlinearly with the number of
+ # global variables. join(1) would be nice here, but unfortunately
+ # isn't a blessed tool.
+ $opt_dry_run || $SED -e '/[ ,]DATA/!d;s,\(.*\)\([ \,].*\),s|^\1$|\1\2|,' < $export_symbols > $output_objdir/$libname.filter
+ func_append delfiles " $export_symbols $output_objdir/$libname.filter"
+ export_symbols=$output_objdir/$libname.def
+ $opt_dry_run || $SED -f $output_objdir/$libname.filter < $orig_export_symbols > $export_symbols
+ fi
+ }
+
+ libobjs=$output
+ # Restore the value of output.
+ output=$save_output
+
+ if test -n "$convenience" && test -n "$whole_archive_flag_spec"; then
+ eval libobjs=\"\$libobjs $whole_archive_flag_spec\"
+ test "X$libobjs" = "X " && libobjs=
+ fi
+ # Expand the library linking commands again to reset the
+ # value of $libobjs for piecewise linking.
+
+ # Do each of the archive commands.
+ if test yes = "$module" && test -n "$module_cmds"; then
+ if test -n "$export_symbols" && test -n "$module_expsym_cmds"; then
+ cmds=$module_expsym_cmds
+ else
+ cmds=$module_cmds
+ fi
+ else
+ if test -n "$export_symbols" && test -n "$archive_expsym_cmds"; then
+ cmds=$archive_expsym_cmds
+ else
+ cmds=$archive_cmds
+ fi
+ fi
+ fi
+
+ if test -n "$delfiles"; then
+ # Append the command to remove temporary files to $cmds.
+ eval cmds=\"\$cmds~\$RM $delfiles\"
+ fi
+
+ # Add any objects from preloaded convenience libraries
+ if test -n "$dlprefiles"; then
+ gentop=$output_objdir/${outputname}x
+ func_append generated " $gentop"
+
+ func_extract_archives $gentop $dlprefiles
+ func_append libobjs " $func_extract_archives_result"
+ test "X$libobjs" = "X " && libobjs=
+ fi
+
+ save_ifs=$IFS; IFS='~'
+ for cmd in $cmds; do
+ IFS=$sp$nl
+ eval cmd=\"$cmd\"
+ IFS=$save_ifs
+ $opt_quiet || {
+ func_quote_for_expand "$cmd"
+ eval "func_echo $func_quote_for_expand_result"
+ }
+ $opt_dry_run || eval "$cmd" || {
+ lt_exit=$?
+
+ # Restore the uninstalled library and exit
+ if test relink = "$opt_mode"; then
+ ( cd "$output_objdir" && \
+ $RM "${realname}T" && \
+ $MV "${realname}U" "$realname" )
+ fi
+
+ exit $lt_exit
+ }
+ done
+ IFS=$save_ifs
+
+ # Restore the uninstalled library and exit
+ if test relink = "$opt_mode"; then
+ $opt_dry_run || eval '(cd $output_objdir && $RM ${realname}T && $MV $realname ${realname}T && $MV ${realname}U $realname)' || exit $?
+
+ if test -n "$convenience"; then
+ if test -z "$whole_archive_flag_spec"; then
+ func_show_eval '${RM}r "$gentop"'
+ fi
+ fi
+
+ exit $EXIT_SUCCESS
+ fi
+
+ # Create links to the real library.
+ for linkname in $linknames; do
+ if test "$realname" != "$linkname"; then
+ func_show_eval '(cd "$output_objdir" && $RM "$linkname" && $LN_S "$realname" "$linkname")' 'exit $?'
+ fi
+ done
+
+ # If -module or -export-dynamic was specified, set the dlname.
+ if test yes = "$module" || test yes = "$export_dynamic"; then
+ # On all known operating systems, these are identical.
+ dlname=$soname
+ fi
+ fi
+ ;;
+
+ obj)
+ if test -n "$dlfiles$dlprefiles" || test no != "$dlself"; then
+ func_warning "'-dlopen' is ignored for objects"
+ fi
+
+ case " $deplibs" in
+ *\ -l* | *\ -L*)
+ func_warning "'-l' and '-L' are ignored for objects" ;;
+ esac
+
+ test -n "$rpath" && \
+ func_warning "'-rpath' is ignored for objects"
+
+ test -n "$xrpath" && \
+ func_warning "'-R' is ignored for objects"
+
+ test -n "$vinfo" && \
+ func_warning "'-version-info' is ignored for objects"
+
+ test -n "$release" && \
+ func_warning "'-release' is ignored for objects"
+
+ case $output in
+ *.lo)
+ test -n "$objs$old_deplibs" && \
+ func_fatal_error "cannot build library object '$output' from non-libtool objects"
+
+ libobj=$output
+ func_lo2o "$libobj"
+ obj=$func_lo2o_result
+ ;;
+ *)
+ libobj=
+ obj=$output
+ ;;
+ esac
+
+ # Delete the old objects.
+ $opt_dry_run || $RM $obj $libobj
+
+ # Objects from convenience libraries. This assumes
+ # single-version convenience libraries. Whenever we create
+ # different ones for PIC/non-PIC, this we'll have to duplicate
+ # the extraction.
+ reload_conv_objs=
+ gentop=
+ # if reload_cmds runs $LD directly, get rid of -Wl from
+ # whole_archive_flag_spec and hope we can get by with turning comma
+ # into space.
+ case $reload_cmds in
+ *\$LD[\ \$]*) wl= ;;
+ esac
+ if test -n "$convenience"; then
+ if test -n "$whole_archive_flag_spec"; then
+ eval tmp_whole_archive_flags=\"$whole_archive_flag_spec\"
+ test -n "$wl" || tmp_whole_archive_flags=`$ECHO "$tmp_whole_archive_flags" | $SED 's|,| |g'`
+ reload_conv_objs=$reload_objs\ $tmp_whole_archive_flags
+ else
+ gentop=$output_objdir/${obj}x
+ func_append generated " $gentop"
+
+ func_extract_archives $gentop $convenience
+ reload_conv_objs="$reload_objs $func_extract_archives_result"
+ fi
+ fi
+
+ # If we're not building shared, we need to use non_pic_objs
+ test yes = "$build_libtool_libs" || libobjs=$non_pic_objects
+
+ # Create the old-style object.
+ reload_objs=$objs$old_deplibs' '`$ECHO "$libobjs" | $SP2NL | $SED "/\.$libext$/d; /\.lib$/d; $lo2o" | $NL2SP`' '$reload_conv_objs
+
+ output=$obj
+ func_execute_cmds "$reload_cmds" 'exit $?'
+
+ # Exit if we aren't doing a library object file.
+ if test -z "$libobj"; then
+ if test -n "$gentop"; then
+ func_show_eval '${RM}r "$gentop"'
+ fi
+
+ exit $EXIT_SUCCESS
+ fi
+
+ test yes = "$build_libtool_libs" || {
+ if test -n "$gentop"; then
+ func_show_eval '${RM}r "$gentop"'
+ fi
+
+ # Create an invalid libtool object if no PIC, so that we don't
+ # accidentally link it into a program.
+ # $show "echo timestamp > $libobj"
+ # $opt_dry_run || eval "echo timestamp > $libobj" || exit $?
+ exit $EXIT_SUCCESS
+ }
+
+ if test -n "$pic_flag" || test default != "$pic_mode"; then
+ # Only do commands if we really have different PIC objects.
+ reload_objs="$libobjs $reload_conv_objs"
+ output=$libobj
+ func_execute_cmds "$reload_cmds" 'exit $?'
+ fi
+
+ if test -n "$gentop"; then
+ func_show_eval '${RM}r "$gentop"'
+ fi
+
+ exit $EXIT_SUCCESS
+ ;;
+
+ prog)
+ case $host in
+ *cygwin*) func_stripname '' '.exe' "$output"
+ output=$func_stripname_result.exe;;
+ esac
+ test -n "$vinfo" && \
+ func_warning "'-version-info' is ignored for programs"
+
+ test -n "$release" && \
+ func_warning "'-release' is ignored for programs"
+
+ $preload \
+ && test unknown,unknown,unknown = "$dlopen_support,$dlopen_self,$dlopen_self_static" \
+ && func_warning "'LT_INIT([dlopen])' not used. Assuming no dlopen support."
+
+ case $host in
+ *-*-rhapsody* | *-*-darwin1.[012])
+ # On Rhapsody replace the C library is the System framework
+ compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's/ -lc / System.ltframework /'`
+ finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's/ -lc / System.ltframework /'`
+ ;;
+ esac
+
+ case $host in
+ *-*-darwin*)
+ # Don't allow lazy linking, it breaks C++ global constructors
+ # But is supposedly fixed on 10.4 or later (yay!).
+ if test CXX = "$tagname"; then
+ case ${MACOSX_DEPLOYMENT_TARGET-10.0} in
+ 10.[0123])
+ func_append compile_command " $wl-bind_at_load"
+ func_append finalize_command " $wl-bind_at_load"
+ ;;
+ esac
+ fi
+ # Time to change all our "foo.ltframework" stuff back to "-framework foo"
+ compile_deplibs=`$ECHO " $compile_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+ finalize_deplibs=`$ECHO " $finalize_deplibs" | $SED 's% \([^ $]*\).ltframework% -framework \1%g'`
+ ;;
+ esac
+
+
+ # move library search paths that coincide with paths to not yet
+ # installed libraries to the beginning of the library search list
+ new_libs=
+ for path in $notinst_path; do
+ case " $new_libs " in
+ *" -L$path/$objdir "*) ;;
+ *)
+ case " $compile_deplibs " in
+ *" -L$path/$objdir "*)
+ func_append new_libs " -L$path/$objdir" ;;
+ esac
+ ;;
+ esac
+ done
+ for deplib in $compile_deplibs; do
+ case $deplib in
+ -L*)
+ case " $new_libs " in
+ *" $deplib "*) ;;
+ *) func_append new_libs " $deplib" ;;
+ esac
+ ;;
+ *) func_append new_libs " $deplib" ;;
+ esac
+ done
+ compile_deplibs=$new_libs
+
+
+ func_append compile_command " $compile_deplibs"
+ func_append finalize_command " $finalize_deplibs"
+
+ if test -n "$rpath$xrpath"; then
+ # If the user specified any rpath flags, then add them.
+ for libdir in $rpath $xrpath; do
+ # This is the magic to use -rpath.
+ case "$finalize_rpath " in
+ *" $libdir "*) ;;
+ *) func_append finalize_rpath " $libdir" ;;
+ esac
+ done
+ fi
+
+ # Now hardcode the library paths
+ rpath=
+ hardcode_libdirs=
+ for libdir in $compile_rpath $finalize_rpath; do
+ if test -n "$hardcode_libdir_flag_spec"; then
+ if test -n "$hardcode_libdir_separator"; then
+ if test -z "$hardcode_libdirs"; then
+ hardcode_libdirs=$libdir
+ else
+ # Just accumulate the unique libdirs.
+ case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+ *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+ ;;
+ *)
+ func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+ ;;
+ esac
+ fi
+ else
+ eval flag=\"$hardcode_libdir_flag_spec\"
+ func_append rpath " $flag"
+ fi
+ elif test -n "$runpath_var"; then
+ case "$perm_rpath " in
+ *" $libdir "*) ;;
+ *) func_append perm_rpath " $libdir" ;;
+ esac
+ fi
+ case $host in
+ *-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-os2* | *-cegcc*)
+ testbindir=`$ECHO "$libdir" | $SED -e 's*/lib$*/bin*'`
+ case :$dllsearchpath: in
+ *":$libdir:"*) ;;
+ ::) dllsearchpath=$libdir;;
+ *) func_append dllsearchpath ":$libdir";;
+ esac
+ case :$dllsearchpath: in
+ *":$testbindir:"*) ;;
+ ::) dllsearchpath=$testbindir;;
+ *) func_append dllsearchpath ":$testbindir";;
+ esac
+ ;;
+ esac
+ done
+ # Substitute the hardcoded libdirs into the rpath.
+ if test -n "$hardcode_libdir_separator" &&
+ test -n "$hardcode_libdirs"; then
+ libdir=$hardcode_libdirs
+ eval rpath=\" $hardcode_libdir_flag_spec\"
+ fi
+ compile_rpath=$rpath
+
+ rpath=
+ hardcode_libdirs=
+ for libdir in $finalize_rpath; do
+ if test -n "$hardcode_libdir_flag_spec"; then
+ if test -n "$hardcode_libdir_separator"; then
+ if test -z "$hardcode_libdirs"; then
+ hardcode_libdirs=$libdir
+ else
+ # Just accumulate the unique libdirs.
+ case $hardcode_libdir_separator$hardcode_libdirs$hardcode_libdir_separator in
+ *"$hardcode_libdir_separator$libdir$hardcode_libdir_separator"*)
+ ;;
+ *)
+ func_append hardcode_libdirs "$hardcode_libdir_separator$libdir"
+ ;;
+ esac
+ fi
+ else
+ eval flag=\"$hardcode_libdir_flag_spec\"
+ func_append rpath " $flag"
+ fi
+ elif test -n "$runpath_var"; then
+ case "$finalize_perm_rpath " in
+ *" $libdir "*) ;;
+ *) func_append finalize_perm_rpath " $libdir" ;;
+ esac
+ fi
+ done
+ # Substitute the hardcoded libdirs into the rpath.
+ if test -n "$hardcode_libdir_separator" &&
+ test -n "$hardcode_libdirs"; then
+ libdir=$hardcode_libdirs
+ eval rpath=\" $hardcode_libdir_flag_spec\"
+ fi
+ finalize_rpath=$rpath
+
+ if test -n "$libobjs" && test yes = "$build_old_libs"; then
+ # Transform all the library objects into standard objects.
+ compile_command=`$ECHO "$compile_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
+ finalize_command=`$ECHO "$finalize_command" | $SP2NL | $SED "$lo2o" | $NL2SP`
+ fi
+
+ func_generate_dlsyms "$outputname" "@PROGRAM@" false
+
+ # template prelinking step
+ if test -n "$prelink_cmds"; then
+ func_execute_cmds "$prelink_cmds" 'exit $?'
+ fi
+
+ wrappers_required=:
+ case $host in
+ *cegcc* | *mingw32ce*)
+ # Disable wrappers for cegcc and mingw32ce hosts, we are cross compiling anyway.
+ wrappers_required=false
+ ;;
+ *cygwin* | *mingw* )
+ test yes = "$build_libtool_libs" || wrappers_required=false
+ ;;
+ *)
+ if test no = "$need_relink" || test yes != "$build_libtool_libs"; then
+ wrappers_required=false
+ fi
+ ;;
+ esac
+ $wrappers_required || {
+ # Replace the output file specification.
+ compile_command=`$ECHO "$compile_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
+ link_command=$compile_command$compile_rpath
+
+ # We have no uninstalled library dependencies, so finalize right now.
+ exit_status=0
+ func_show_eval "$link_command" 'exit_status=$?'
+
+ if test -n "$postlink_cmds"; then
+ func_to_tool_file "$output"
+ postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+ func_execute_cmds "$postlink_cmds" 'exit $?'
+ fi
+
+ # Delete the generated files.
+ if test -f "$output_objdir/${outputname}S.$objext"; then
+ func_show_eval '$RM "$output_objdir/${outputname}S.$objext"'
+ fi
+
+ exit $exit_status
+ }
+
+ if test -n "$compile_shlibpath$finalize_shlibpath"; then
+ compile_command="$shlibpath_var=\"$compile_shlibpath$finalize_shlibpath\$$shlibpath_var\" $compile_command"
+ fi
+ if test -n "$finalize_shlibpath"; then
+ finalize_command="$shlibpath_var=\"$finalize_shlibpath\$$shlibpath_var\" $finalize_command"
+ fi
+
+ compile_var=
+ finalize_var=
+ if test -n "$runpath_var"; then
+ if test -n "$perm_rpath"; then
+ # We should set the runpath_var.
+ rpath=
+ for dir in $perm_rpath; do
+ func_append rpath "$dir:"
+ done
+ compile_var="$runpath_var=\"$rpath\$$runpath_var\" "
+ fi
+ if test -n "$finalize_perm_rpath"; then
+ # We should set the runpath_var.
+ rpath=
+ for dir in $finalize_perm_rpath; do
+ func_append rpath "$dir:"
+ done
+ finalize_var="$runpath_var=\"$rpath\$$runpath_var\" "
+ fi
+ fi
+
+ if test yes = "$no_install"; then
+ # We don't need to create a wrapper script.
+ link_command=$compile_var$compile_command$compile_rpath
+ # Replace the output file specification.
+ link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output"'%g'`
+ # Delete the old output file.
+ $opt_dry_run || $RM $output
+ # Link the executable and exit
+ func_show_eval "$link_command" 'exit $?'
+
+ if test -n "$postlink_cmds"; then
+ func_to_tool_file "$output"
+ postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+ func_execute_cmds "$postlink_cmds" 'exit $?'
+ fi
+
+ exit $EXIT_SUCCESS
+ fi
+
+ case $hardcode_action,$fast_install in
+ relink,*)
+ # Fast installation is not supported
+ link_command=$compile_var$compile_command$compile_rpath
+ relink_command=$finalize_var$finalize_command$finalize_rpath
+
+ func_warning "this platform does not like uninstalled shared libraries"
+ func_warning "'$output' will be relinked during installation"
+ ;;
+ *,yes)
+ link_command=$finalize_var$compile_command$finalize_rpath
+ relink_command=`$ECHO "$compile_var$compile_command$compile_rpath" | $SED 's%@OUTPUT@%\$progdir/\$file%g'`
+ ;;
+ *,no)
+ link_command=$compile_var$compile_command$compile_rpath
+ relink_command=$finalize_var$finalize_command$finalize_rpath
+ ;;
+ *,needless)
+ link_command=$finalize_var$compile_command$finalize_rpath
+ relink_command=
+ ;;
+ esac
+
+ # Replace the output file specification.
+ link_command=`$ECHO "$link_command" | $SED 's%@OUTPUT@%'"$output_objdir/$outputname"'%g'`
+
+ # Delete the old output files.
+ $opt_dry_run || $RM $output $output_objdir/$outputname $output_objdir/lt-$outputname
+
+ func_show_eval "$link_command" 'exit $?'
+
+ if test -n "$postlink_cmds"; then
+ func_to_tool_file "$output_objdir/$outputname"
+ postlink_cmds=`func_echo_all "$postlink_cmds" | $SED -e 's%@OUTPUT@%'"$output_objdir/$outputname"'%g' -e 's%@TOOL_OUTPUT@%'"$func_to_tool_file_result"'%g'`
+ func_execute_cmds "$postlink_cmds" 'exit $?'
+ fi
+
+ # Now create the wrapper script.
+ func_verbose "creating $output"
+
+ # Quote the relink command for shipping.
+ if test -n "$relink_command"; then
+ # Preserve any variables that may affect compiler behavior
+ for var in $variables_saved_for_relink; do
+ if eval test -z \"\${$var+set}\"; then
+ relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
+ elif eval var_value=\$$var; test -z "$var_value"; then
+ relink_command="$var=; export $var; $relink_command"
+ else
+ func_quote_for_eval "$var_value"
+ relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
+ fi
+ done
+ relink_command="(cd `pwd`; $relink_command)"
+ relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
+ fi
+
+ # Only actually do things if not in dry run mode.
+ $opt_dry_run || {
+ # win32 will think the script is a binary if it has
+ # a .exe suffix, so we strip it off here.
+ case $output in
+ *.exe) func_stripname '' '.exe' "$output"
+ output=$func_stripname_result ;;
+ esac
+ # test for cygwin because mv fails w/o .exe extensions
+ case $host in
+ *cygwin*)
+ exeext=.exe
+ func_stripname '' '.exe' "$outputname"
+ outputname=$func_stripname_result ;;
+ *) exeext= ;;
+ esac
+ case $host in
+ *cygwin* | *mingw* )
+ func_dirname_and_basename "$output" "" "."
+ output_name=$func_basename_result
+ output_path=$func_dirname_result
+ cwrappersource=$output_path/$objdir/lt-$output_name.c
+ cwrapper=$output_path/$output_name.exe
+ $RM $cwrappersource $cwrapper
+ trap "$RM $cwrappersource $cwrapper; exit $EXIT_FAILURE" 1 2 15
+
+ func_emit_cwrapperexe_src > $cwrappersource
+
+ # The wrapper executable is built using the $host compiler,
+ # because it contains $host paths and files. If cross-
+ # compiling, it, like the target executable, must be
+ # executed on the $host or under an emulation environment.
+ $opt_dry_run || {
+ $LTCC $LTCFLAGS -o $cwrapper $cwrappersource
+ $STRIP $cwrapper
+ }
+
+ # Now, create the wrapper script for func_source use:
+ func_ltwrapper_scriptname $cwrapper
+ $RM $func_ltwrapper_scriptname_result
+ trap "$RM $func_ltwrapper_scriptname_result; exit $EXIT_FAILURE" 1 2 15
+ $opt_dry_run || {
+ # note: this script will not be executed, so do not chmod.
+ if test "x$build" = "x$host"; then
+ $cwrapper --lt-dump-script > $func_ltwrapper_scriptname_result
+ else
+ func_emit_wrapper no > $func_ltwrapper_scriptname_result
+ fi
+ }
+ ;;
+ * )
+ $RM $output
+ trap "$RM $output; exit $EXIT_FAILURE" 1 2 15
+
+ func_emit_wrapper no > $output
+ chmod +x $output
+ ;;
+ esac
+ }
+ exit $EXIT_SUCCESS
+ ;;
+ esac
+
+ # See if we need to build an old-fashioned archive.
+ for oldlib in $oldlibs; do
+
+ case $build_libtool_libs in
+ convenience)
+ oldobjs="$libobjs_save $symfileobj"
+ addlibs=$convenience
+ build_libtool_libs=no
+ ;;
+ module)
+ oldobjs=$libobjs_save
+ addlibs=$old_convenience
+ build_libtool_libs=no
+ ;;
+ *)
+ oldobjs="$old_deplibs $non_pic_objects"
+ $preload && test -f "$symfileobj" \
+ && func_append oldobjs " $symfileobj"
+ addlibs=$old_convenience
+ ;;
+ esac
+
+ if test -n "$addlibs"; then
+ gentop=$output_objdir/${outputname}x
+ func_append generated " $gentop"
+
+ func_extract_archives $gentop $addlibs
+ func_append oldobjs " $func_extract_archives_result"
+ fi
+
+ # Do each command in the archive commands.
+ if test -n "$old_archive_from_new_cmds" && test yes = "$build_libtool_libs"; then
+ cmds=$old_archive_from_new_cmds
+ else
+
+ # Add any objects from preloaded convenience libraries
+ if test -n "$dlprefiles"; then
+ gentop=$output_objdir/${outputname}x
+ func_append generated " $gentop"
+
+ func_extract_archives $gentop $dlprefiles
+ func_append oldobjs " $func_extract_archives_result"
+ fi
+
+ # POSIX demands no paths to be encoded in archives. We have
+ # to avoid creating archives with duplicate basenames if we
+ # might have to extract them afterwards, e.g., when creating a
+ # static archive out of a convenience library, or when linking
+ # the entirety of a libtool archive into another (currently
+ # not supported by libtool).
+ if (for obj in $oldobjs
+ do
+ func_basename "$obj"
+ $ECHO "$func_basename_result"
+ done | sort | sort -uc >/dev/null 2>&1); then
+ :
+ else
+ echo "copying selected object files to avoid basename conflicts..."
+ gentop=$output_objdir/${outputname}x
+ func_append generated " $gentop"
+ func_mkdir_p "$gentop"
+ save_oldobjs=$oldobjs
+ oldobjs=
+ counter=1
+ for obj in $save_oldobjs
+ do
+ func_basename "$obj"
+ objbase=$func_basename_result
+ case " $oldobjs " in
+ " ") oldobjs=$obj ;;
+ *[\ /]"$objbase "*)
+ while :; do
+ # Make sure we don't pick an alternate name that also
+ # overlaps.
+ newobj=lt$counter-$objbase
+ func_arith $counter + 1
+ counter=$func_arith_result
+ case " $oldobjs " in
+ *[\ /]"$newobj "*) ;;
+ *) if test ! -f "$gentop/$newobj"; then break; fi ;;
+ esac
+ done
+ func_show_eval "ln $obj $gentop/$newobj || cp $obj $gentop/$newobj"
+ func_append oldobjs " $gentop/$newobj"
+ ;;
+ *) func_append oldobjs " $obj" ;;
+ esac
+ done
+ fi
+ func_to_tool_file "$oldlib" func_convert_file_msys_to_w32
+ tool_oldlib=$func_to_tool_file_result
+ eval cmds=\"$old_archive_cmds\"
+
+ func_len " $cmds"
+ len=$func_len_result
+ if test "$len" -lt "$max_cmd_len" || test "$max_cmd_len" -le -1; then
+ cmds=$old_archive_cmds
+ elif test -n "$archiver_list_spec"; then
+ func_verbose "using command file archive linking..."
+ for obj in $oldobjs
+ do
+ func_to_tool_file "$obj"
+ $ECHO "$func_to_tool_file_result"
+ done > $output_objdir/$libname.libcmd
+ func_to_tool_file "$output_objdir/$libname.libcmd"
+ oldobjs=" $archiver_list_spec$func_to_tool_file_result"
+ cmds=$old_archive_cmds
+ else
+ # the command line is too long to link in one step, link in parts
+ func_verbose "using piecewise archive linking..."
+ save_RANLIB=$RANLIB
+ RANLIB=:
+ objlist=
+ concat_cmds=
+ save_oldobjs=$oldobjs
+ oldobjs=
+ # Is there a better way of finding the last object in the list?
+ for obj in $save_oldobjs
+ do
+ last_oldobj=$obj
+ done
+ eval test_cmds=\"$old_archive_cmds\"
+ func_len " $test_cmds"
+ len0=$func_len_result
+ len=$len0
+ for obj in $save_oldobjs
+ do
+ func_len " $obj"
+ func_arith $len + $func_len_result
+ len=$func_arith_result
+ func_append objlist " $obj"
+ if test "$len" -lt "$max_cmd_len"; then
+ :
+ else
+ # the above command should be used before it gets too long
+ oldobjs=$objlist
+ if test "$obj" = "$last_oldobj"; then
+ RANLIB=$save_RANLIB
+ fi
+ test -z "$concat_cmds" || concat_cmds=$concat_cmds~
+ eval concat_cmds=\"\$concat_cmds$old_archive_cmds\"
+ objlist=
+ len=$len0
+ fi
+ done
+ RANLIB=$save_RANLIB
+ oldobjs=$objlist
+ if test -z "$oldobjs"; then
+ eval cmds=\"\$concat_cmds\"
+ else
+ eval cmds=\"\$concat_cmds~\$old_archive_cmds\"
+ fi
+ fi
+ fi
+ func_execute_cmds "$cmds" 'exit $?'
+ done
+
+ test -n "$generated" && \
+ func_show_eval "${RM}r$generated"
+
+ # Now create the libtool archive.
+ case $output in
+ *.la)
+ old_library=
+ test yes = "$build_old_libs" && old_library=$libname.$libext
+ func_verbose "creating $output"
+
+ # Preserve any variables that may affect compiler behavior
+ for var in $variables_saved_for_relink; do
+ if eval test -z \"\${$var+set}\"; then
+ relink_command="{ test -z \"\${$var+set}\" || $lt_unset $var || { $var=; export $var; }; }; $relink_command"
+ elif eval var_value=\$$var; test -z "$var_value"; then
+ relink_command="$var=; export $var; $relink_command"
+ else
+ func_quote_for_eval "$var_value"
+ relink_command="$var=$func_quote_for_eval_result; export $var; $relink_command"
+ fi
+ done
+ # Quote the link command for shipping.
+ relink_command="(cd `pwd`; $SHELL \"$progpath\" $preserve_args --mode=relink $libtool_args @inst_prefix_dir@)"
+ relink_command=`$ECHO "$relink_command" | $SED "$sed_quote_subst"`
+ if test yes = "$hardcode_automatic"; then
+ relink_command=
+ fi
+
+ # Only create the output if not a dry run.
+ $opt_dry_run || {
+ for installed in no yes; do
+ if test yes = "$installed"; then
+ if test -z "$install_libdir"; then
+ break
+ fi
+ output=$output_objdir/${outputname}i
+ # Replace all uninstalled libtool libraries with the installed ones
+ newdependency_libs=
+ for deplib in $dependency_libs; do
+ case $deplib in
+ *.la)
+ func_basename "$deplib"
+ name=$func_basename_result
+ func_resolve_sysroot "$deplib"
+ eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $func_resolve_sysroot_result`
+ test -z "$libdir" && \
+ func_fatal_error "'$deplib' is not a valid libtool archive"
+ func_append newdependency_libs " ${lt_sysroot:+=}$libdir/$name"
+ ;;
+ -L*)
+ func_stripname -L '' "$deplib"
+ func_replace_sysroot "$func_stripname_result"
+ func_append newdependency_libs " -L$func_replace_sysroot_result"
+ ;;
+ -R*)
+ func_stripname -R '' "$deplib"
+ func_replace_sysroot "$func_stripname_result"
+ func_append newdependency_libs " -R$func_replace_sysroot_result"
+ ;;
+ *) func_append newdependency_libs " $deplib" ;;
+ esac
+ done
+ dependency_libs=$newdependency_libs
+ newdlfiles=
+
+ for lib in $dlfiles; do
+ case $lib in
+ *.la)
+ func_basename "$lib"
+ name=$func_basename_result
+ eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
+ test -z "$libdir" && \
+ func_fatal_error "'$lib' is not a valid libtool archive"
+ func_append newdlfiles " ${lt_sysroot:+=}$libdir/$name"
+ ;;
+ *) func_append newdlfiles " $lib" ;;
+ esac
+ done
+ dlfiles=$newdlfiles
+ newdlprefiles=
+ for lib in $dlprefiles; do
+ case $lib in
+ *.la)
+ # Only pass preopened files to the pseudo-archive (for
+ # eventual linking with the app. that links it) if we
+ # didn't already link the preopened objects directly into
+ # the library:
+ func_basename "$lib"
+ name=$func_basename_result
+ eval libdir=`$SED -n -e 's/^libdir=\(.*\)$/\1/p' $lib`
+ test -z "$libdir" && \
+ func_fatal_error "'$lib' is not a valid libtool archive"
+ func_append newdlprefiles " ${lt_sysroot:+=}$libdir/$name"
+ ;;
+ esac
+ done
+ dlprefiles=$newdlprefiles
+ else
+ newdlfiles=
+ for lib in $dlfiles; do
+ case $lib in
+ [\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;;
+ *) abs=`pwd`"/$lib" ;;
+ esac
+ func_append newdlfiles " $abs"
+ done
+ dlfiles=$newdlfiles
+ newdlprefiles=
+ for lib in $dlprefiles; do
+ case $lib in
+ [\\/]* | [A-Za-z]:[\\/]*) abs=$lib ;;
+ *) abs=`pwd`"/$lib" ;;
+ esac
+ func_append newdlprefiles " $abs"
+ done
+ dlprefiles=$newdlprefiles
+ fi
+ $RM $output
+ # place dlname in correct position for cygwin
+ # In fact, it would be nice if we could use this code for all target
+ # systems that can't hard-code library paths into their executables
+ # and that have no shared library path variable independent of PATH,
+ # but it turns out we can't easily determine that from inspecting
+ # libtool variables, so we have to hard-code the OSs to which it
+ # applies here; at the moment, that means platforms that use the PE
+ # object format with DLL files. See the long comment at the top of
+ # tests/bindir.at for full details.
+ tdlname=$dlname
+ case $host,$output,$installed,$module,$dlname in
+ *cygwin*,*lai,yes,no,*.dll | *mingw*,*lai,yes,no,*.dll | *cegcc*,*lai,yes,no,*.dll)
+ # If a -bindir argument was supplied, place the dll there.
+ if test -n "$bindir"; then
+ func_relative_path "$install_libdir" "$bindir"
+ tdlname=$func_relative_path_result/$dlname
+ else
+ # Otherwise fall back on heuristic.
+ tdlname=../bin/$dlname
+ fi
+ ;;
+ esac
+ $ECHO > $output "\
+# $outputname - a libtool library file
+# Generated by $PROGRAM (GNU $PACKAGE) $VERSION
+#
+# Please DO NOT delete this file!
+# It is necessary for linking the library.
+
+# The name that we can dlopen(3).
+dlname='$tdlname'
+
+# Names of this library.
+library_names='$library_names'
+
+# The name of the static archive.
+old_library='$old_library'
+
+# Linker flags that cannot go in dependency_libs.
+inherited_linker_flags='$new_inherited_linker_flags'
+
+# Libraries that this one depends upon.
+dependency_libs='$dependency_libs'
+
+# Names of additional weak libraries provided by this library
+weak_library_names='$weak_libs'
+
+# Version information for $libname.
+current=$current
+age=$age
+revision=$revision
+
+# Is this an already installed library?
+installed=$installed
+
+# Should we warn about portability when linking against -modules?
+shouldnotlink=$module
+
+# Files to dlopen/dlpreopen
+dlopen='$dlfiles'
+dlpreopen='$dlprefiles'
+
+# Directory that this library needs to be installed in:
+libdir='$install_libdir'"
+ if test no,yes = "$installed,$need_relink"; then
+ $ECHO >> $output "\
+relink_command=\"$relink_command\""
+ fi
+ done
+ }
+
+ # Do a symbolic link so that the libtool archive can be found in
+ # LD_LIBRARY_PATH before the program is installed.
+ func_show_eval '( cd "$output_objdir" && $RM "$outputname" && $LN_S "../$outputname" "$outputname" )' 'exit $?'
+ ;;
+ esac
+ exit $EXIT_SUCCESS
+}
+
+if test link = "$opt_mode" || test relink = "$opt_mode"; then
+ func_mode_link ${1+"$@"}
+fi
+
+
+# func_mode_uninstall arg...
+func_mode_uninstall ()
+{
+ $debug_cmd
+
+ RM=$nonopt
+ files=
+ rmforce=false
+ exit_status=0
+
+ # This variable tells wrapper scripts just to set variables rather
+ # than running their programs.
+ libtool_install_magic=$magic
+
+ for arg
+ do
+ case $arg in
+ -f) func_append RM " $arg"; rmforce=: ;;
+ -*) func_append RM " $arg" ;;
+ *) func_append files " $arg" ;;
+ esac
+ done
+
+ test -z "$RM" && \
+ func_fatal_help "you must specify an RM program"
+
+ rmdirs=
+
+ for file in $files; do
+ func_dirname "$file" "" "."
+ dir=$func_dirname_result
+ if test . = "$dir"; then
+ odir=$objdir
+ else
+ odir=$dir/$objdir
+ fi
+ func_basename "$file"
+ name=$func_basename_result
+ test uninstall = "$opt_mode" && odir=$dir
+
+ # Remember odir for removal later, being careful to avoid duplicates
+ if test clean = "$opt_mode"; then
+ case " $rmdirs " in
+ *" $odir "*) ;;
+ *) func_append rmdirs " $odir" ;;
+ esac
+ fi
+
+ # Don't error if the file doesn't exist and rm -f was used.
+ if { test -L "$file"; } >/dev/null 2>&1 ||
+ { test -h "$file"; } >/dev/null 2>&1 ||
+ test -f "$file"; then
+ :
+ elif test -d "$file"; then
+ exit_status=1
+ continue
+ elif $rmforce; then
+ continue
+ fi
+
+ rmfiles=$file
+
+ case $name in
+ *.la)
+ # Possibly a libtool archive, so verify it.
+ if func_lalib_p "$file"; then
+ func_source $dir/$name
+
+ # Delete the libtool libraries and symlinks.
+ for n in $library_names; do
+ func_append rmfiles " $odir/$n"
+ done
+ test -n "$old_library" && func_append rmfiles " $odir/$old_library"
+
+ case $opt_mode in
+ clean)
+ case " $library_names " in
+ *" $dlname "*) ;;
+ *) test -n "$dlname" && func_append rmfiles " $odir/$dlname" ;;
+ esac
+ test -n "$libdir" && func_append rmfiles " $odir/$name $odir/${name}i"
+ ;;
+ uninstall)
+ if test -n "$library_names"; then
+ # Do each command in the postuninstall commands.
+ func_execute_cmds "$postuninstall_cmds" '$rmforce || exit_status=1'
+ fi
+
+ if test -n "$old_library"; then
+ # Do each command in the old_postuninstall commands.
+ func_execute_cmds "$old_postuninstall_cmds" '$rmforce || exit_status=1'
+ fi
+ # FIXME: should reinstall the best remaining shared library.
+ ;;
+ esac
+ fi
+ ;;
+
+ *.lo)
+ # Possibly a libtool object, so verify it.
+ if func_lalib_p "$file"; then
+
+ # Read the .lo file
+ func_source $dir/$name
+
+ # Add PIC object to the list of files to remove.
+ if test -n "$pic_object" && test none != "$pic_object"; then
+ func_append rmfiles " $dir/$pic_object"
+ fi
+
+ # Add non-PIC object to the list of files to remove.
+ if test -n "$non_pic_object" && test none != "$non_pic_object"; then
+ func_append rmfiles " $dir/$non_pic_object"
+ fi
+ fi
+ ;;
+
+ *)
+ if test clean = "$opt_mode"; then
+ noexename=$name
+ case $file in
+ *.exe)
+ func_stripname '' '.exe' "$file"
+ file=$func_stripname_result
+ func_stripname '' '.exe' "$name"
+ noexename=$func_stripname_result
+ # $file with .exe has already been added to rmfiles,
+ # add $file without .exe
+ func_append rmfiles " $file"
+ ;;
+ esac
+ # Do a test to see if this is a libtool program.
+ if func_ltwrapper_p "$file"; then
+ if func_ltwrapper_executable_p "$file"; then
+ func_ltwrapper_scriptname "$file"
+ relink_command=
+ func_source $func_ltwrapper_scriptname_result
+ func_append rmfiles " $func_ltwrapper_scriptname_result"
+ else
+ relink_command=
+ func_source $dir/$noexename
+ fi
+
+ # note $name still contains .exe if it was in $file originally
+ # as does the version of $file that was added into $rmfiles
+ func_append rmfiles " $odir/$name $odir/${name}S.$objext"
+ if test yes = "$fast_install" && test -n "$relink_command"; then
+ func_append rmfiles " $odir/lt-$name"
+ fi
+ if test "X$noexename" != "X$name"; then
+ func_append rmfiles " $odir/lt-$noexename.c"
+ fi
+ fi
+ fi
+ ;;
+ esac
+ func_show_eval "$RM $rmfiles" 'exit_status=1'
+ done
+
+ # Try to remove the $objdir's in the directories where we deleted files
+ for dir in $rmdirs; do
+ if test -d "$dir"; then
+ func_show_eval "rmdir $dir >/dev/null 2>&1"
+ fi
+ done
+
+ exit $exit_status
+}
+
+if test uninstall = "$opt_mode" || test clean = "$opt_mode"; then
+ func_mode_uninstall ${1+"$@"}
+fi
+
+test -z "$opt_mode" && {
+ help=$generic_help
+ func_fatal_help "you must specify a MODE"
+}
+
+test -z "$exec_cmd" && \
+ func_fatal_help "invalid operation mode '$opt_mode'"
+
+if test -n "$exec_cmd"; then
+ eval exec "$exec_cmd"
+ exit $EXIT_FAILURE
+fi
+
+exit $exit_status
+
+
+# The TAGs below are defined such that we never get into a situation
+# where we disable both kinds of libraries. Given conflicting
+# choices, we go for a static library, that is the most portable,
+# since we can't tell whether shared libraries were disabled because
+# the user asked for that or because the platform doesn't support
+# them. This is particularly important on AIX, because we don't
+# support having both static and shared libraries enabled at the same
+# time on that platform, so we default to a shared-only configuration.
+# If a disable-shared tag is given, we'll fallback to a static-only
+# configuration. But we'll never go from static-only to shared-only.
+
+# ### BEGIN LIBTOOL TAG CONFIG: disable-shared
+build_libtool_libs=no
+build_old_libs=yes
+# ### END LIBTOOL TAG CONFIG: disable-shared
+
+# ### BEGIN LIBTOOL TAG CONFIG: disable-static
+build_old_libs=`case $build_libtool_libs in yes) echo no;; *) echo yes;; esac`
+# ### END LIBTOOL TAG CONFIG: disable-static
+
+# Local Variables:
+# mode:shell-script
+# sh-indentation:2
+# End:
--- /dev/null
+libtool.m4
+lt~obsolete.m4
+ltoptions.m4
+ltsugar.m4
+ltversion.m4
--- /dev/null
+# ===========================================================================
+# https://www.gnu.org/software/autoconf-archive/ax_pthread.html
+# ===========================================================================
+#
+# SYNOPSIS
+#
+# AX_PTHREAD([ACTION-IF-FOUND[, ACTION-IF-NOT-FOUND]])
+#
+# DESCRIPTION
+#
+# This macro figures out how to build C programs using POSIX threads. It
+# sets the PTHREAD_LIBS output variable to the threads library and linker
+# flags, and the PTHREAD_CFLAGS output variable to any special C compiler
+# flags that are needed. (The user can also force certain compiler
+# flags/libs to be tested by setting these environment variables.)
+#
+# Also sets PTHREAD_CC to any special C compiler that is needed for
+# multi-threaded programs (defaults to the value of CC otherwise). (This
+# is necessary on AIX to use the special cc_r compiler alias.)
+#
+# NOTE: You are assumed to not only compile your program with these flags,
+# but also to link with them as well. For example, you might link with
+# $PTHREAD_CC $CFLAGS $PTHREAD_CFLAGS $LDFLAGS ... $PTHREAD_LIBS $LIBS
+#
+# If you are only building threaded programs, you may wish to use these
+# variables in your default LIBS, CFLAGS, and CC:
+#
+# LIBS="$PTHREAD_LIBS $LIBS"
+# CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+# CC="$PTHREAD_CC"
+#
+# In addition, if the PTHREAD_CREATE_JOINABLE thread-attribute constant
+# has a nonstandard name, this macro defines PTHREAD_CREATE_JOINABLE to
+# that name (e.g. PTHREAD_CREATE_UNDETACHED on AIX).
+#
+# Also HAVE_PTHREAD_PRIO_INHERIT is defined if pthread is found and the
+# PTHREAD_PRIO_INHERIT symbol is defined when compiling with
+# PTHREAD_CFLAGS.
+#
+# ACTION-IF-FOUND is a list of shell commands to run if a threads library
+# is found, and ACTION-IF-NOT-FOUND is a list of commands to run it if it
+# is not found. If ACTION-IF-FOUND is not specified, the default action
+# will define HAVE_PTHREAD.
+#
+# Please let the authors know if this macro fails on any platform, or if
+# you have any other suggestions or comments. This macro was based on work
+# by SGJ on autoconf scripts for FFTW (http://www.fftw.org/) (with help
+# from M. Frigo), as well as ac_pthread and hb_pthread macros posted by
+# Alejandro Forero Cuervo to the autoconf macro repository. We are also
+# grateful for the helpful feedback of numerous users.
+#
+# Updated for Autoconf 2.68 by Daniel Richard G.
+#
+# LICENSE
+#
+# Copyright (c) 2008 Steven G. Johnson <stevenj@alum.mit.edu>
+# Copyright (c) 2011 Daniel Richard G. <skunk@iSKUNK.ORG>
+#
+# This program is free software: you can redistribute it and/or modify it
+# under the terms of the GNU General Public License as published by the
+# Free Software Foundation, either version 3 of the License, or (at your
+# option) any later version.
+#
+# This program is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General
+# Public License for more details.
+#
+# You should have received a copy of the GNU General Public License along
+# with this program. If not, see <https://www.gnu.org/licenses/>.
+#
+# As a special exception, the respective Autoconf Macro's copyright owner
+# gives unlimited permission to copy, distribute and modify the configure
+# scripts that are the output of Autoconf when processing the Macro. You
+# need not follow the terms of the GNU General Public License when using
+# or distributing such scripts, even though portions of the text of the
+# Macro appear in them. The GNU General Public License (GPL) does govern
+# all other use of the material that constitutes the Autoconf Macro.
+#
+# This special exception to the GPL applies to versions of the Autoconf
+# Macro released by the Autoconf Archive. When you make and distribute a
+# modified version of the Autoconf Macro, you may extend this special
+# exception to the GPL to apply to your modified version as well.
+
+#serial 24
+
+AU_ALIAS([ACX_PTHREAD], [AX_PTHREAD])
+AC_DEFUN([AX_PTHREAD], [
+AC_REQUIRE([AC_CANONICAL_HOST])
+AC_REQUIRE([AC_PROG_CC])
+AC_REQUIRE([AC_PROG_SED])
+AC_LANG_PUSH([C])
+ax_pthread_ok=no
+
+# We used to check for pthread.h first, but this fails if pthread.h
+# requires special compiler flags (e.g. on Tru64 or Sequent).
+# It gets checked for in the link test anyway.
+
+# First of all, check if the user has set any of the PTHREAD_LIBS,
+# etcetera environment variables, and if threads linking works using
+# them:
+if test "x$PTHREAD_CFLAGS$PTHREAD_LIBS" != "x"; then
+ ax_pthread_save_CC="$CC"
+ ax_pthread_save_CFLAGS="$CFLAGS"
+ ax_pthread_save_LIBS="$LIBS"
+ AS_IF([test "x$PTHREAD_CC" != "x"], [CC="$PTHREAD_CC"])
+ CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+ LIBS="$PTHREAD_LIBS $LIBS"
+ AC_MSG_CHECKING([for pthread_join using $CC $PTHREAD_CFLAGS $PTHREAD_LIBS])
+ AC_LINK_IFELSE([AC_LANG_CALL([], [pthread_join])], [ax_pthread_ok=yes])
+ AC_MSG_RESULT([$ax_pthread_ok])
+ if test "x$ax_pthread_ok" = "xno"; then
+ PTHREAD_LIBS=""
+ PTHREAD_CFLAGS=""
+ fi
+ CC="$ax_pthread_save_CC"
+ CFLAGS="$ax_pthread_save_CFLAGS"
+ LIBS="$ax_pthread_save_LIBS"
+fi
+
+# We must check for the threads library under a number of different
+# names; the ordering is very important because some systems
+# (e.g. DEC) have both -lpthread and -lpthreads, where one of the
+# libraries is broken (non-POSIX).
+
+# Create a list of thread flags to try. Items starting with a "-" are
+# C compiler flags, and other items are library names, except for "none"
+# which indicates that we try without any flags at all, and "pthread-config"
+# which is a program returning the flags for the Pth emulation library.
+
+ax_pthread_flags="pthreads none -Kthread -pthread -pthreads -mthreads pthread --thread-safe -mt pthread-config"
+
+# The ordering *is* (sometimes) important. Some notes on the
+# individual items follow:
+
+# pthreads: AIX (must check this before -lpthread)
+# none: in case threads are in libc; should be tried before -Kthread and
+# other compiler flags to prevent continual compiler warnings
+# -Kthread: Sequent (threads in libc, but -Kthread needed for pthread.h)
+# -pthread: Linux/gcc (kernel threads), BSD/gcc (userland threads), Tru64
+# (Note: HP C rejects this with "bad form for `-t' option")
+# -pthreads: Solaris/gcc (Note: HP C also rejects)
+# -mt: Sun Workshop C (may only link SunOS threads [-lthread], but it
+# doesn't hurt to check since this sometimes defines pthreads and
+# -D_REENTRANT too), HP C (must be checked before -lpthread, which
+# is present but should not be used directly; and before -mthreads,
+# because the compiler interprets this as "-mt" + "-hreads")
+# -mthreads: Mingw32/gcc, Lynx/gcc
+# pthread: Linux, etcetera
+# --thread-safe: KAI C++
+# pthread-config: use pthread-config program (for GNU Pth library)
+
+case $host_os in
+
+ freebsd*)
+
+ # -kthread: FreeBSD kernel threads (preferred to -pthread since SMP-able)
+ # lthread: LinuxThreads port on FreeBSD (also preferred to -pthread)
+
+ ax_pthread_flags="-kthread lthread $ax_pthread_flags"
+ ;;
+
+ hpux*)
+
+ # From the cc(1) man page: "[-mt] Sets various -D flags to enable
+ # multi-threading and also sets -lpthread."
+
+ ax_pthread_flags="-mt -pthread pthread $ax_pthread_flags"
+ ;;
+
+ openedition*)
+
+ # IBM z/OS requires a feature-test macro to be defined in order to
+ # enable POSIX threads at all, so give the user a hint if this is
+ # not set. (We don't define these ourselves, as they can affect
+ # other portions of the system API in unpredictable ways.)
+
+ AC_EGREP_CPP([AX_PTHREAD_ZOS_MISSING],
+ [
+# if !defined(_OPEN_THREADS) && !defined(_UNIX03_THREADS)
+ AX_PTHREAD_ZOS_MISSING
+# endif
+ ],
+ [AC_MSG_WARN([IBM z/OS requires -D_OPEN_THREADS or -D_UNIX03_THREADS to enable pthreads support.])])
+ ;;
+
+ solaris*)
+
+ # On Solaris (at least, for some versions), libc contains stubbed
+ # (non-functional) versions of the pthreads routines, so link-based
+ # tests will erroneously succeed. (N.B.: The stubs are missing
+ # pthread_cleanup_push, or rather a function called by this macro,
+ # so we could check for that, but who knows whether they'll stub
+ # that too in a future libc.) So we'll check first for the
+ # standard Solaris way of linking pthreads (-mt -lpthread).
+
+ ax_pthread_flags="-mt,pthread pthread $ax_pthread_flags"
+ ;;
+esac
+
+# GCC generally uses -pthread, or -pthreads on some platforms (e.g. SPARC)
+
+AS_IF([test "x$GCC" = "xyes"],
+ [ax_pthread_flags="-pthread -pthreads $ax_pthread_flags"])
+
+# The presence of a feature test macro requesting re-entrant function
+# definitions is, on some systems, a strong hint that pthreads support is
+# correctly enabled
+
+case $host_os in
+ darwin* | hpux* | linux* | osf* | solaris*)
+ ax_pthread_check_macro="_REENTRANT"
+ ;;
+
+ aix*)
+ ax_pthread_check_macro="_THREAD_SAFE"
+ ;;
+
+ *)
+ ax_pthread_check_macro="--"
+ ;;
+esac
+AS_IF([test "x$ax_pthread_check_macro" = "x--"],
+ [ax_pthread_check_cond=0],
+ [ax_pthread_check_cond="!defined($ax_pthread_check_macro)"])
+
+# Are we compiling with Clang?
+
+AC_CACHE_CHECK([whether $CC is Clang],
+ [ax_cv_PTHREAD_CLANG],
+ [ax_cv_PTHREAD_CLANG=no
+ # Note that Autoconf sets GCC=yes for Clang as well as GCC
+ if test "x$GCC" = "xyes"; then
+ AC_EGREP_CPP([AX_PTHREAD_CC_IS_CLANG],
+ [/* Note: Clang 2.7 lacks __clang_[a-z]+__ */
+# if defined(__clang__) && defined(__llvm__)
+ AX_PTHREAD_CC_IS_CLANG
+# endif
+ ],
+ [ax_cv_PTHREAD_CLANG=yes])
+ fi
+ ])
+ax_pthread_clang="$ax_cv_PTHREAD_CLANG"
+
+ax_pthread_clang_warning=no
+
+# Clang needs special handling, because older versions handle the -pthread
+# option in a rather... idiosyncratic way
+
+if test "x$ax_pthread_clang" = "xyes"; then
+
+ # Clang takes -pthread; it has never supported any other flag
+
+ # (Note 1: This will need to be revisited if a system that Clang
+ # supports has POSIX threads in a separate library. This tends not
+ # to be the way of modern systems, but it's conceivable.)
+
+ # (Note 2: On some systems, notably Darwin, -pthread is not needed
+ # to get POSIX threads support; the API is always present and
+ # active. We could reasonably leave PTHREAD_CFLAGS empty. But
+ # -pthread does define _REENTRANT, and while the Darwin headers
+ # ignore this macro, third-party headers might not.)
+
+ PTHREAD_CFLAGS="-pthread"
+ PTHREAD_LIBS=
+
+ ax_pthread_ok=yes
+
+ # However, older versions of Clang make a point of warning the user
+ # that, in an invocation where only linking and no compilation is
+ # taking place, the -pthread option has no effect ("argument unused
+ # during compilation"). They expect -pthread to be passed in only
+ # when source code is being compiled.
+ #
+ # Problem is, this is at odds with the way Automake and most other
+ # C build frameworks function, which is that the same flags used in
+ # compilation (CFLAGS) are also used in linking. Many systems
+ # supported by AX_PTHREAD require exactly this for POSIX threads
+ # support, and in fact it is often not straightforward to specify a
+ # flag that is used only in the compilation phase and not in
+ # linking. Such a scenario is extremely rare in practice.
+ #
+ # Even though use of the -pthread flag in linking would only print
+ # a warning, this can be a nuisance for well-run software projects
+ # that build with -Werror. So if the active version of Clang has
+ # this misfeature, we search for an option to squash it.
+
+ AC_CACHE_CHECK([whether Clang needs flag to prevent "argument unused" warning when linking with -pthread],
+ [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG],
+ [ax_cv_PTHREAD_CLANG_NO_WARN_FLAG=unknown
+ # Create an alternate version of $ac_link that compiles and
+ # links in two steps (.c -> .o, .o -> exe) instead of one
+ # (.c -> exe), because the warning occurs only in the second
+ # step
+ ax_pthread_save_ac_link="$ac_link"
+ ax_pthread_sed='s/conftest\.\$ac_ext/conftest.$ac_objext/g'
+ ax_pthread_link_step=`$as_echo "$ac_link" | sed "$ax_pthread_sed"`
+ ax_pthread_2step_ac_link="($ac_compile) && (echo ==== >&5) && ($ax_pthread_link_step)"
+ ax_pthread_save_CFLAGS="$CFLAGS"
+ for ax_pthread_try in '' -Qunused-arguments -Wno-unused-command-line-argument unknown; do
+ AS_IF([test "x$ax_pthread_try" = "xunknown"], [break])
+ CFLAGS="-Werror -Wunknown-warning-option $ax_pthread_try -pthread $ax_pthread_save_CFLAGS"
+ ac_link="$ax_pthread_save_ac_link"
+ AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])],
+ [ac_link="$ax_pthread_2step_ac_link"
+ AC_LINK_IFELSE([AC_LANG_SOURCE([[int main(void){return 0;}]])],
+ [break])
+ ])
+ done
+ ac_link="$ax_pthread_save_ac_link"
+ CFLAGS="$ax_pthread_save_CFLAGS"
+ AS_IF([test "x$ax_pthread_try" = "x"], [ax_pthread_try=no])
+ ax_cv_PTHREAD_CLANG_NO_WARN_FLAG="$ax_pthread_try"
+ ])
+
+ case "$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG" in
+ no | unknown) ;;
+ *) PTHREAD_CFLAGS="$ax_cv_PTHREAD_CLANG_NO_WARN_FLAG $PTHREAD_CFLAGS" ;;
+ esac
+
+fi # $ax_pthread_clang = yes
+
+if test "x$ax_pthread_ok" = "xno"; then
+for ax_pthread_try_flag in $ax_pthread_flags; do
+
+ case $ax_pthread_try_flag in
+ none)
+ AC_MSG_CHECKING([whether pthreads work without any flags])
+ ;;
+
+ -mt,pthread)
+ AC_MSG_CHECKING([whether pthreads work with -mt -lpthread])
+ PTHREAD_CFLAGS="-mt"
+ PTHREAD_LIBS="-lpthread"
+ ;;
+
+ -*)
+ AC_MSG_CHECKING([whether pthreads work with $ax_pthread_try_flag])
+ PTHREAD_CFLAGS="$ax_pthread_try_flag"
+ ;;
+
+ pthread-config)
+ AC_CHECK_PROG([ax_pthread_config], [pthread-config], [yes], [no])
+ AS_IF([test "x$ax_pthread_config" = "xno"], [continue])
+ PTHREAD_CFLAGS="`pthread-config --cflags`"
+ PTHREAD_LIBS="`pthread-config --ldflags` `pthread-config --libs`"
+ ;;
+
+ *)
+ AC_MSG_CHECKING([for the pthreads library -l$ax_pthread_try_flag])
+ PTHREAD_LIBS="-l$ax_pthread_try_flag"
+ ;;
+ esac
+
+ ax_pthread_save_CFLAGS="$CFLAGS"
+ ax_pthread_save_LIBS="$LIBS"
+ CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+ LIBS="$PTHREAD_LIBS $LIBS"
+
+ # Check for various functions. We must include pthread.h,
+ # since some functions may be macros. (On the Sequent, we
+ # need a special flag -Kthread to make this header compile.)
+ # We check for pthread_join because it is in -lpthread on IRIX
+ # while pthread_create is in libc. We check for pthread_attr_init
+ # due to DEC craziness with -lpthreads. We check for
+ # pthread_cleanup_push because it is one of the few pthread
+ # functions on Solaris that doesn't have a non-functional libc stub.
+ # We try pthread_create on general principles.
+
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>
+# if $ax_pthread_check_cond
+# error "$ax_pthread_check_macro must be defined"
+# endif
+ static void routine(void *a) { a = 0; }
+ static void *start_routine(void *a) { return a; }],
+ [pthread_t th; pthread_attr_t attr;
+ pthread_create(&th, 0, start_routine, 0);
+ pthread_join(th, 0);
+ pthread_attr_init(&attr);
+ pthread_cleanup_push(routine, 0);
+ pthread_cleanup_pop(0) /* ; */])],
+ [ax_pthread_ok=yes],
+ [])
+
+ CFLAGS="$ax_pthread_save_CFLAGS"
+ LIBS="$ax_pthread_save_LIBS"
+
+ AC_MSG_RESULT([$ax_pthread_ok])
+ AS_IF([test "x$ax_pthread_ok" = "xyes"], [break])
+
+ PTHREAD_LIBS=""
+ PTHREAD_CFLAGS=""
+done
+fi
+
+# Various other checks:
+if test "x$ax_pthread_ok" = "xyes"; then
+ ax_pthread_save_CFLAGS="$CFLAGS"
+ ax_pthread_save_LIBS="$LIBS"
+ CFLAGS="$CFLAGS $PTHREAD_CFLAGS"
+ LIBS="$PTHREAD_LIBS $LIBS"
+
+ # Detect AIX lossage: JOINABLE attribute is called UNDETACHED.
+ AC_CACHE_CHECK([for joinable pthread attribute],
+ [ax_cv_PTHREAD_JOINABLE_ATTR],
+ [ax_cv_PTHREAD_JOINABLE_ATTR=unknown
+ for ax_pthread_attr in PTHREAD_CREATE_JOINABLE PTHREAD_CREATE_UNDETACHED; do
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([#include <pthread.h>],
+ [int attr = $ax_pthread_attr; return attr /* ; */])],
+ [ax_cv_PTHREAD_JOINABLE_ATTR=$ax_pthread_attr; break],
+ [])
+ done
+ ])
+ AS_IF([test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xunknown" && \
+ test "x$ax_cv_PTHREAD_JOINABLE_ATTR" != "xPTHREAD_CREATE_JOINABLE" && \
+ test "x$ax_pthread_joinable_attr_defined" != "xyes"],
+ [AC_DEFINE_UNQUOTED([PTHREAD_CREATE_JOINABLE],
+ [$ax_cv_PTHREAD_JOINABLE_ATTR],
+ [Define to necessary symbol if this constant
+ uses a non-standard name on your system.])
+ ax_pthread_joinable_attr_defined=yes
+ ])
+
+ AC_CACHE_CHECK([whether more special flags are required for pthreads],
+ [ax_cv_PTHREAD_SPECIAL_FLAGS],
+ [ax_cv_PTHREAD_SPECIAL_FLAGS=no
+ case $host_os in
+ solaris*)
+ ax_cv_PTHREAD_SPECIAL_FLAGS="-D_POSIX_PTHREAD_SEMANTICS"
+ ;;
+ esac
+ ])
+ AS_IF([test "x$ax_cv_PTHREAD_SPECIAL_FLAGS" != "xno" && \
+ test "x$ax_pthread_special_flags_added" != "xyes"],
+ [PTHREAD_CFLAGS="$ax_cv_PTHREAD_SPECIAL_FLAGS $PTHREAD_CFLAGS"
+ ax_pthread_special_flags_added=yes])
+
+ AC_CACHE_CHECK([for PTHREAD_PRIO_INHERIT],
+ [ax_cv_PTHREAD_PRIO_INHERIT],
+ [AC_LINK_IFELSE([AC_LANG_PROGRAM([[#include <pthread.h>]],
+ [[int i = PTHREAD_PRIO_INHERIT;]])],
+ [ax_cv_PTHREAD_PRIO_INHERIT=yes],
+ [ax_cv_PTHREAD_PRIO_INHERIT=no])
+ ])
+ AS_IF([test "x$ax_cv_PTHREAD_PRIO_INHERIT" = "xyes" && \
+ test "x$ax_pthread_prio_inherit_defined" != "xyes"],
+ [AC_DEFINE([HAVE_PTHREAD_PRIO_INHERIT], [1], [Have PTHREAD_PRIO_INHERIT.])
+ ax_pthread_prio_inherit_defined=yes
+ ])
+
+ CFLAGS="$ax_pthread_save_CFLAGS"
+ LIBS="$ax_pthread_save_LIBS"
+
+ # More AIX lossage: compile with *_r variant
+ if test "x$GCC" != "xyes"; then
+ case $host_os in
+ aix*)
+ AS_CASE(["x/$CC"],
+ [x*/c89|x*/c89_128|x*/c99|x*/c99_128|x*/cc|x*/cc128|x*/xlc|x*/xlc_v6|x*/xlc128|x*/xlc128_v6],
+ [#handle absolute path differently from PATH based program lookup
+ AS_CASE(["x$CC"],
+ [x/*],
+ [AS_IF([AS_EXECUTABLE_P([${CC}_r])],[PTHREAD_CC="${CC}_r"])],
+ [AC_CHECK_PROGS([PTHREAD_CC],[${CC}_r],[$CC])])])
+ ;;
+ esac
+ fi
+fi
+
+test -n "$PTHREAD_CC" || PTHREAD_CC="$CC"
+
+AC_SUBST([PTHREAD_LIBS])
+AC_SUBST([PTHREAD_CFLAGS])
+AC_SUBST([PTHREAD_CC])
+
+# Finally, execute ACTION-IF-FOUND/ACTION-IF-NOT-FOUND:
+if test "x$ax_pthread_ok" = "xyes"; then
+ ifelse([$1],,[AC_DEFINE([HAVE_PTHREAD],[1],[Define if you have POSIX threads libraries and header files.])],[$1])
+ :
+else
+ ax_pthread_ok=no
+ $2
+fi
+AC_LANG_POP
+])dnl AX_PTHREAD
--- /dev/null
+# libtool.m4 - Configure libtool for the host system. -*-Autoconf-*-
+#
+# Copyright (C) 1996-2001, 2003-2015 Free Software Foundation, Inc.
+# Written by Gordon Matzigkeit, 1996
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+m4_define([_LT_COPYING], [dnl
+# Copyright (C) 2014 Free Software Foundation, Inc.
+# This is free software; see the source for copying conditions. There is NO
+# warranty; not even for MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+
+# GNU Libtool is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2 of of the License, or
+# (at your option) any later version.
+#
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program or library that is built
+# using GNU Libtool, you may include this file under the same
+# distribution terms that you use for the rest of that program.
+#
+# GNU Libtool is distributed in the hope that it will be useful, but
+# WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <http://www.gnu.org/licenses/>.
+])
+
+# serial 58 LT_INIT
+
+
+# LT_PREREQ(VERSION)
+# ------------------
+# Complain and exit if this libtool version is less that VERSION.
+m4_defun([LT_PREREQ],
+[m4_if(m4_version_compare(m4_defn([LT_PACKAGE_VERSION]), [$1]), -1,
+ [m4_default([$3],
+ [m4_fatal([Libtool version $1 or higher is required],
+ 63)])],
+ [$2])])
+
+
+# _LT_CHECK_BUILDDIR
+# ------------------
+# Complain if the absolute build directory name contains unusual characters
+m4_defun([_LT_CHECK_BUILDDIR],
+[case `pwd` in
+ *\ * | *\ *)
+ AC_MSG_WARN([Libtool does not cope well with whitespace in `pwd`]) ;;
+esac
+])
+
+
+# LT_INIT([OPTIONS])
+# ------------------
+AC_DEFUN([LT_INIT],
+[AC_PREREQ([2.62])dnl We use AC_PATH_PROGS_FEATURE_CHECK
+AC_REQUIRE([AC_CONFIG_AUX_DIR_DEFAULT])dnl
+AC_BEFORE([$0], [LT_LANG])dnl
+AC_BEFORE([$0], [LT_OUTPUT])dnl
+AC_BEFORE([$0], [LTDL_INIT])dnl
+m4_require([_LT_CHECK_BUILDDIR])dnl
+
+dnl Autoconf doesn't catch unexpanded LT_ macros by default:
+m4_pattern_forbid([^_?LT_[A-Z_]+$])dnl
+m4_pattern_allow([^(_LT_EOF|LT_DLGLOBAL|LT_DLLAZY_OR_NOW|LT_MULTI_MODULE)$])dnl
+dnl aclocal doesn't pull ltoptions.m4, ltsugar.m4, or ltversion.m4
+dnl unless we require an AC_DEFUNed macro:
+AC_REQUIRE([LTOPTIONS_VERSION])dnl
+AC_REQUIRE([LTSUGAR_VERSION])dnl
+AC_REQUIRE([LTVERSION_VERSION])dnl
+AC_REQUIRE([LTOBSOLETE_VERSION])dnl
+m4_require([_LT_PROG_LTMAIN])dnl
+
+_LT_SHELL_INIT([SHELL=${CONFIG_SHELL-/bin/sh}])
+
+dnl Parse OPTIONS
+_LT_SET_OPTIONS([$0], [$1])
+
+# This can be used to rebuild libtool when needed
+LIBTOOL_DEPS=$ltmain
+
+# Always use our own libtool.
+LIBTOOL='$(SHELL) $(top_builddir)/libtool'
+AC_SUBST(LIBTOOL)dnl
+
+_LT_SETUP
+
+# Only expand once:
+m4_define([LT_INIT])
+])# LT_INIT
+
+# Old names:
+AU_ALIAS([AC_PROG_LIBTOOL], [LT_INIT])
+AU_ALIAS([AM_PROG_LIBTOOL], [LT_INIT])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_PROG_LIBTOOL], [])
+dnl AC_DEFUN([AM_PROG_LIBTOOL], [])
+
+
+# _LT_PREPARE_CC_BASENAME
+# -----------------------
+m4_defun([_LT_PREPARE_CC_BASENAME], [
+# Calculate cc_basename. Skip known compiler wrappers and cross-prefix.
+func_cc_basename ()
+{
+ for cc_temp in @S|@*""; do
+ case $cc_temp in
+ compile | *[[\\/]]compile | ccache | *[[\\/]]ccache ) ;;
+ distcc | *[[\\/]]distcc | purify | *[[\\/]]purify ) ;;
+ \-*) ;;
+ *) break;;
+ esac
+ done
+ func_cc_basename_result=`$ECHO "$cc_temp" | $SED "s%.*/%%; s%^$host_alias-%%"`
+}
+])# _LT_PREPARE_CC_BASENAME
+
+
+# _LT_CC_BASENAME(CC)
+# -------------------
+# It would be clearer to call AC_REQUIREs from _LT_PREPARE_CC_BASENAME,
+# but that macro is also expanded into generated libtool script, which
+# arranges for $SED and $ECHO to be set by different means.
+m4_defun([_LT_CC_BASENAME],
+[m4_require([_LT_PREPARE_CC_BASENAME])dnl
+AC_REQUIRE([_LT_DECL_SED])dnl
+AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl
+func_cc_basename $1
+cc_basename=$func_cc_basename_result
+])
+
+
+# _LT_FILEUTILS_DEFAULTS
+# ----------------------
+# It is okay to use these file commands and assume they have been set
+# sensibly after 'm4_require([_LT_FILEUTILS_DEFAULTS])'.
+m4_defun([_LT_FILEUTILS_DEFAULTS],
+[: ${CP="cp -f"}
+: ${MV="mv -f"}
+: ${RM="rm -f"}
+])# _LT_FILEUTILS_DEFAULTS
+
+
+# _LT_SETUP
+# ---------
+m4_defun([_LT_SETUP],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
+AC_REQUIRE([_LT_PREPARE_SED_QUOTE_VARS])dnl
+AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])dnl
+
+_LT_DECL([], [PATH_SEPARATOR], [1], [The PATH separator for the build system])dnl
+dnl
+_LT_DECL([], [host_alias], [0], [The host system])dnl
+_LT_DECL([], [host], [0])dnl
+_LT_DECL([], [host_os], [0])dnl
+dnl
+_LT_DECL([], [build_alias], [0], [The build system])dnl
+_LT_DECL([], [build], [0])dnl
+_LT_DECL([], [build_os], [0])dnl
+dnl
+AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([LT_PATH_LD])dnl
+AC_REQUIRE([LT_PATH_NM])dnl
+dnl
+AC_REQUIRE([AC_PROG_LN_S])dnl
+test -z "$LN_S" && LN_S="ln -s"
+_LT_DECL([], [LN_S], [1], [Whether we need soft or hard links])dnl
+dnl
+AC_REQUIRE([LT_CMD_MAX_LEN])dnl
+_LT_DECL([objext], [ac_objext], [0], [Object file suffix (normally "o")])dnl
+_LT_DECL([], [exeext], [0], [Executable file suffix (normally "")])dnl
+dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_CHECK_SHELL_FEATURES])dnl
+m4_require([_LT_PATH_CONVERSION_FUNCTIONS])dnl
+m4_require([_LT_CMD_RELOAD])dnl
+m4_require([_LT_CHECK_MAGIC_METHOD])dnl
+m4_require([_LT_CHECK_SHAREDLIB_FROM_LINKLIB])dnl
+m4_require([_LT_CMD_OLD_ARCHIVE])dnl
+m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
+m4_require([_LT_WITH_SYSROOT])dnl
+m4_require([_LT_CMD_TRUNCATE])dnl
+
+_LT_CONFIG_LIBTOOL_INIT([
+# See if we are running on zsh, and set the options that allow our
+# commands through without removal of \ escapes INIT.
+if test -n "\${ZSH_VERSION+set}"; then
+ setopt NO_GLOB_SUBST
+fi
+])
+if test -n "${ZSH_VERSION+set}"; then
+ setopt NO_GLOB_SUBST
+fi
+
+_LT_CHECK_OBJDIR
+
+m4_require([_LT_TAG_COMPILER])dnl
+
+case $host_os in
+aix3*)
+ # AIX sometimes has problems with the GCC collect2 program. For some
+ # reason, if we set the COLLECT_NAMES environment variable, the problems
+ # vanish in a puff of smoke.
+ if test set != "${COLLECT_NAMES+set}"; then
+ COLLECT_NAMES=
+ export COLLECT_NAMES
+ fi
+ ;;
+esac
+
+# Global variables:
+ofile=libtool
+can_build_shared=yes
+
+# All known linkers require a '.a' archive for static linking (except MSVC,
+# which needs '.lib').
+libext=a
+
+with_gnu_ld=$lt_cv_prog_gnu_ld
+
+old_CC=$CC
+old_CFLAGS=$CFLAGS
+
+# Set sane defaults for various variables
+test -z "$CC" && CC=cc
+test -z "$LTCC" && LTCC=$CC
+test -z "$LTCFLAGS" && LTCFLAGS=$CFLAGS
+test -z "$LD" && LD=ld
+test -z "$ac_objext" && ac_objext=o
+
+_LT_CC_BASENAME([$compiler])
+
+# Only perform the check for file, if the check method requires it
+test -z "$MAGIC_CMD" && MAGIC_CMD=file
+case $deplibs_check_method in
+file_magic*)
+ if test "$file_magic_cmd" = '$MAGIC_CMD'; then
+ _LT_PATH_MAGIC
+ fi
+ ;;
+esac
+
+# Use C for the default configuration in the libtool script
+LT_SUPPORTED_TAG([CC])
+_LT_LANG_C_CONFIG
+_LT_LANG_DEFAULT_CONFIG
+_LT_CONFIG_COMMANDS
+])# _LT_SETUP
+
+
+# _LT_PREPARE_SED_QUOTE_VARS
+# --------------------------
+# Define a few sed substitution that help us do robust quoting.
+m4_defun([_LT_PREPARE_SED_QUOTE_VARS],
+[# Backslashify metacharacters that are still active within
+# double-quoted strings.
+sed_quote_subst='s/\([["`$\\]]\)/\\\1/g'
+
+# Same as above, but do not quote variable references.
+double_quote_subst='s/\([["`\\]]\)/\\\1/g'
+
+# Sed substitution to delay expansion of an escaped shell variable in a
+# double_quote_subst'ed string.
+delay_variable_subst='s/\\\\\\\\\\\$/\\\\\\$/g'
+
+# Sed substitution to delay expansion of an escaped single quote.
+delay_single_quote_subst='s/'\''/'\'\\\\\\\'\''/g'
+
+# Sed substitution to avoid accidental globbing in evaled expressions
+no_glob_subst='s/\*/\\\*/g'
+])
+
+# _LT_PROG_LTMAIN
+# ---------------
+# Note that this code is called both from 'configure', and 'config.status'
+# now that we use AC_CONFIG_COMMANDS to generate libtool. Notably,
+# 'config.status' has no value for ac_aux_dir unless we are using Automake,
+# so we pass a copy along to make sure it has a sensible value anyway.
+m4_defun([_LT_PROG_LTMAIN],
+[m4_ifdef([AC_REQUIRE_AUX_FILE], [AC_REQUIRE_AUX_FILE([ltmain.sh])])dnl
+_LT_CONFIG_LIBTOOL_INIT([ac_aux_dir='$ac_aux_dir'])
+ltmain=$ac_aux_dir/ltmain.sh
+])# _LT_PROG_LTMAIN
+
+
+## ------------------------------------- ##
+## Accumulate code for creating libtool. ##
+## ------------------------------------- ##
+
+# So that we can recreate a full libtool script including additional
+# tags, we accumulate the chunks of code to send to AC_CONFIG_COMMANDS
+# in macros and then make a single call at the end using the 'libtool'
+# label.
+
+
+# _LT_CONFIG_LIBTOOL_INIT([INIT-COMMANDS])
+# ----------------------------------------
+# Register INIT-COMMANDS to be passed to AC_CONFIG_COMMANDS later.
+m4_define([_LT_CONFIG_LIBTOOL_INIT],
+[m4_ifval([$1],
+ [m4_append([_LT_OUTPUT_LIBTOOL_INIT],
+ [$1
+])])])
+
+# Initialize.
+m4_define([_LT_OUTPUT_LIBTOOL_INIT])
+
+
+# _LT_CONFIG_LIBTOOL([COMMANDS])
+# ------------------------------
+# Register COMMANDS to be passed to AC_CONFIG_COMMANDS later.
+m4_define([_LT_CONFIG_LIBTOOL],
+[m4_ifval([$1],
+ [m4_append([_LT_OUTPUT_LIBTOOL_COMMANDS],
+ [$1
+])])])
+
+# Initialize.
+m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS])
+
+
+# _LT_CONFIG_SAVE_COMMANDS([COMMANDS], [INIT_COMMANDS])
+# -----------------------------------------------------
+m4_defun([_LT_CONFIG_SAVE_COMMANDS],
+[_LT_CONFIG_LIBTOOL([$1])
+_LT_CONFIG_LIBTOOL_INIT([$2])
+])
+
+
+# _LT_FORMAT_COMMENT([COMMENT])
+# -----------------------------
+# Add leading comment marks to the start of each line, and a trailing
+# full-stop to the whole comment if one is not present already.
+m4_define([_LT_FORMAT_COMMENT],
+[m4_ifval([$1], [
+m4_bpatsubst([m4_bpatsubst([$1], [^ *], [# ])],
+ [['`$\]], [\\\&])]m4_bmatch([$1], [[!?.]$], [], [.])
+)])
+
+
+
+## ------------------------ ##
+## FIXME: Eliminate VARNAME ##
+## ------------------------ ##
+
+
+# _LT_DECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION], [IS-TAGGED?])
+# -------------------------------------------------------------------
+# CONFIGNAME is the name given to the value in the libtool script.
+# VARNAME is the (base) name used in the configure script.
+# VALUE may be 0, 1 or 2 for a computed quote escaped value based on
+# VARNAME. Any other value will be used directly.
+m4_define([_LT_DECL],
+[lt_if_append_uniq([lt_decl_varnames], [$2], [, ],
+ [lt_dict_add_subkey([lt_decl_dict], [$2], [libtool_name],
+ [m4_ifval([$1], [$1], [$2])])
+ lt_dict_add_subkey([lt_decl_dict], [$2], [value], [$3])
+ m4_ifval([$4],
+ [lt_dict_add_subkey([lt_decl_dict], [$2], [description], [$4])])
+ lt_dict_add_subkey([lt_decl_dict], [$2],
+ [tagged?], [m4_ifval([$5], [yes], [no])])])
+])
+
+
+# _LT_TAGDECL([CONFIGNAME], VARNAME, VALUE, [DESCRIPTION])
+# --------------------------------------------------------
+m4_define([_LT_TAGDECL], [_LT_DECL([$1], [$2], [$3], [$4], [yes])])
+
+
+# lt_decl_tag_varnames([SEPARATOR], [VARNAME1...])
+# ------------------------------------------------
+m4_define([lt_decl_tag_varnames],
+[_lt_decl_filter([tagged?], [yes], $@)])
+
+
+# _lt_decl_filter(SUBKEY, VALUE, [SEPARATOR], [VARNAME1..])
+# ---------------------------------------------------------
+m4_define([_lt_decl_filter],
+[m4_case([$#],
+ [0], [m4_fatal([$0: too few arguments: $#])],
+ [1], [m4_fatal([$0: too few arguments: $#: $1])],
+ [2], [lt_dict_filter([lt_decl_dict], [$1], [$2], [], lt_decl_varnames)],
+ [3], [lt_dict_filter([lt_decl_dict], [$1], [$2], [$3], lt_decl_varnames)],
+ [lt_dict_filter([lt_decl_dict], $@)])[]dnl
+])
+
+
+# lt_decl_quote_varnames([SEPARATOR], [VARNAME1...])
+# --------------------------------------------------
+m4_define([lt_decl_quote_varnames],
+[_lt_decl_filter([value], [1], $@)])
+
+
+# lt_decl_dquote_varnames([SEPARATOR], [VARNAME1...])
+# ---------------------------------------------------
+m4_define([lt_decl_dquote_varnames],
+[_lt_decl_filter([value], [2], $@)])
+
+
+# lt_decl_varnames_tagged([SEPARATOR], [VARNAME1...])
+# ---------------------------------------------------
+m4_define([lt_decl_varnames_tagged],
+[m4_assert([$# <= 2])dnl
+_$0(m4_quote(m4_default([$1], [[, ]])),
+ m4_ifval([$2], [[$2]], [m4_dquote(lt_decl_tag_varnames)]),
+ m4_split(m4_normalize(m4_quote(_LT_TAGS)), [ ]))])
+m4_define([_lt_decl_varnames_tagged],
+[m4_ifval([$3], [lt_combine([$1], [$2], [_], $3)])])
+
+
+# lt_decl_all_varnames([SEPARATOR], [VARNAME1...])
+# ------------------------------------------------
+m4_define([lt_decl_all_varnames],
+[_$0(m4_quote(m4_default([$1], [[, ]])),
+ m4_if([$2], [],
+ m4_quote(lt_decl_varnames),
+ m4_quote(m4_shift($@))))[]dnl
+])
+m4_define([_lt_decl_all_varnames],
+[lt_join($@, lt_decl_varnames_tagged([$1],
+ lt_decl_tag_varnames([[, ]], m4_shift($@))))dnl
+])
+
+
+# _LT_CONFIG_STATUS_DECLARE([VARNAME])
+# ------------------------------------
+# Quote a variable value, and forward it to 'config.status' so that its
+# declaration there will have the same value as in 'configure'. VARNAME
+# must have a single quote delimited value for this to work.
+m4_define([_LT_CONFIG_STATUS_DECLARE],
+[$1='`$ECHO "$][$1" | $SED "$delay_single_quote_subst"`'])
+
+
+# _LT_CONFIG_STATUS_DECLARATIONS
+# ------------------------------
+# We delimit libtool config variables with single quotes, so when
+# we write them to config.status, we have to be sure to quote all
+# embedded single quotes properly. In configure, this macro expands
+# each variable declared with _LT_DECL (and _LT_TAGDECL) into:
+#
+# <var>='`$ECHO "$<var>" | $SED "$delay_single_quote_subst"`'
+m4_defun([_LT_CONFIG_STATUS_DECLARATIONS],
+[m4_foreach([_lt_var], m4_quote(lt_decl_all_varnames),
+ [m4_n([_LT_CONFIG_STATUS_DECLARE(_lt_var)])])])
+
+
+# _LT_LIBTOOL_TAGS
+# ----------------
+# Output comment and list of tags supported by the script
+m4_defun([_LT_LIBTOOL_TAGS],
+[_LT_FORMAT_COMMENT([The names of the tagged configurations supported by this script])dnl
+available_tags='_LT_TAGS'dnl
+])
+
+
+# _LT_LIBTOOL_DECLARE(VARNAME, [TAG])
+# -----------------------------------
+# Extract the dictionary values for VARNAME (optionally with TAG) and
+# expand to a commented shell variable setting:
+#
+# # Some comment about what VAR is for.
+# visible_name=$lt_internal_name
+m4_define([_LT_LIBTOOL_DECLARE],
+[_LT_FORMAT_COMMENT(m4_quote(lt_dict_fetch([lt_decl_dict], [$1],
+ [description])))[]dnl
+m4_pushdef([_libtool_name],
+ m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [libtool_name])))[]dnl
+m4_case(m4_quote(lt_dict_fetch([lt_decl_dict], [$1], [value])),
+ [0], [_libtool_name=[$]$1],
+ [1], [_libtool_name=$lt_[]$1],
+ [2], [_libtool_name=$lt_[]$1],
+ [_libtool_name=lt_dict_fetch([lt_decl_dict], [$1], [value])])[]dnl
+m4_ifval([$2], [_$2])[]m4_popdef([_libtool_name])[]dnl
+])
+
+
+# _LT_LIBTOOL_CONFIG_VARS
+# -----------------------
+# Produce commented declarations of non-tagged libtool config variables
+# suitable for insertion in the LIBTOOL CONFIG section of the 'libtool'
+# script. Tagged libtool config variables (even for the LIBTOOL CONFIG
+# section) are produced by _LT_LIBTOOL_TAG_VARS.
+m4_defun([_LT_LIBTOOL_CONFIG_VARS],
+[m4_foreach([_lt_var],
+ m4_quote(_lt_decl_filter([tagged?], [no], [], lt_decl_varnames)),
+ [m4_n([_LT_LIBTOOL_DECLARE(_lt_var)])])])
+
+
+# _LT_LIBTOOL_TAG_VARS(TAG)
+# -------------------------
+m4_define([_LT_LIBTOOL_TAG_VARS],
+[m4_foreach([_lt_var], m4_quote(lt_decl_tag_varnames),
+ [m4_n([_LT_LIBTOOL_DECLARE(_lt_var, [$1])])])])
+
+
+# _LT_TAGVAR(VARNAME, [TAGNAME])
+# ------------------------------
+m4_define([_LT_TAGVAR], [m4_ifval([$2], [$1_$2], [$1])])
+
+
+# _LT_CONFIG_COMMANDS
+# -------------------
+# Send accumulated output to $CONFIG_STATUS. Thanks to the lists of
+# variables for single and double quote escaping we saved from calls
+# to _LT_DECL, we can put quote escaped variables declarations
+# into 'config.status', and then the shell code to quote escape them in
+# for loops in 'config.status'. Finally, any additional code accumulated
+# from calls to _LT_CONFIG_LIBTOOL_INIT is expanded.
+m4_defun([_LT_CONFIG_COMMANDS],
+[AC_PROVIDE_IFELSE([LT_OUTPUT],
+ dnl If the libtool generation code has been placed in $CONFIG_LT,
+ dnl instead of duplicating it all over again into config.status,
+ dnl then we will have config.status run $CONFIG_LT later, so it
+ dnl needs to know what name is stored there:
+ [AC_CONFIG_COMMANDS([libtool],
+ [$SHELL $CONFIG_LT || AS_EXIT(1)], [CONFIG_LT='$CONFIG_LT'])],
+ dnl If the libtool generation code is destined for config.status,
+ dnl expand the accumulated commands and init code now:
+ [AC_CONFIG_COMMANDS([libtool],
+ [_LT_OUTPUT_LIBTOOL_COMMANDS], [_LT_OUTPUT_LIBTOOL_COMMANDS_INIT])])
+])#_LT_CONFIG_COMMANDS
+
+
+# Initialize.
+m4_define([_LT_OUTPUT_LIBTOOL_COMMANDS_INIT],
+[
+
+# The HP-UX ksh and POSIX shell print the target directory to stdout
+# if CDPATH is set.
+(unset CDPATH) >/dev/null 2>&1 && unset CDPATH
+
+sed_quote_subst='$sed_quote_subst'
+double_quote_subst='$double_quote_subst'
+delay_variable_subst='$delay_variable_subst'
+_LT_CONFIG_STATUS_DECLARATIONS
+LTCC='$LTCC'
+LTCFLAGS='$LTCFLAGS'
+compiler='$compiler_DEFAULT'
+
+# A function that is used when there is no print builtin or printf.
+func_fallback_echo ()
+{
+ eval 'cat <<_LTECHO_EOF
+\$[]1
+_LTECHO_EOF'
+}
+
+# Quote evaled strings.
+for var in lt_decl_all_varnames([[ \
+]], lt_decl_quote_varnames); do
+ case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+ *[[\\\\\\\`\\"\\\$]]*)
+ eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED \\"\\\$sed_quote_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
+ ;;
+ *)
+ eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+ ;;
+ esac
+done
+
+# Double-quote double-evaled strings.
+for var in lt_decl_all_varnames([[ \
+]], lt_decl_dquote_varnames); do
+ case \`eval \\\\\$ECHO \\\\""\\\\\$\$var"\\\\"\` in
+ *[[\\\\\\\`\\"\\\$]]*)
+ eval "lt_\$var=\\\\\\"\\\`\\\$ECHO \\"\\\$\$var\\" | \\\$SED -e \\"\\\$double_quote_subst\\" -e \\"\\\$sed_quote_subst\\" -e \\"\\\$delay_variable_subst\\"\\\`\\\\\\"" ## exclude from sc_prohibit_nested_quotes
+ ;;
+ *)
+ eval "lt_\$var=\\\\\\"\\\$\$var\\\\\\""
+ ;;
+ esac
+done
+
+_LT_OUTPUT_LIBTOOL_INIT
+])
+
+# _LT_GENERATED_FILE_INIT(FILE, [COMMENT])
+# ------------------------------------
+# Generate a child script FILE with all initialization necessary to
+# reuse the environment learned by the parent script, and make the
+# file executable. If COMMENT is supplied, it is inserted after the
+# '#!' sequence but before initialization text begins. After this
+# macro, additional text can be appended to FILE to form the body of
+# the child script. The macro ends with non-zero status if the
+# file could not be fully written (such as if the disk is full).
+m4_ifdef([AS_INIT_GENERATED],
+[m4_defun([_LT_GENERATED_FILE_INIT],[AS_INIT_GENERATED($@)])],
+[m4_defun([_LT_GENERATED_FILE_INIT],
+[m4_require([AS_PREPARE])]dnl
+[m4_pushdef([AS_MESSAGE_LOG_FD])]dnl
+[lt_write_fail=0
+cat >$1 <<_ASEOF || lt_write_fail=1
+#! $SHELL
+# Generated by $as_me.
+$2
+SHELL=\${CONFIG_SHELL-$SHELL}
+export SHELL
+_ASEOF
+cat >>$1 <<\_ASEOF || lt_write_fail=1
+AS_SHELL_SANITIZE
+_AS_PREPARE
+exec AS_MESSAGE_FD>&1
+_ASEOF
+test 0 = "$lt_write_fail" && chmod +x $1[]dnl
+m4_popdef([AS_MESSAGE_LOG_FD])])])# _LT_GENERATED_FILE_INIT
+
+# LT_OUTPUT
+# ---------
+# This macro allows early generation of the libtool script (before
+# AC_OUTPUT is called), incase it is used in configure for compilation
+# tests.
+AC_DEFUN([LT_OUTPUT],
+[: ${CONFIG_LT=./config.lt}
+AC_MSG_NOTICE([creating $CONFIG_LT])
+_LT_GENERATED_FILE_INIT(["$CONFIG_LT"],
+[# Run this file to recreate a libtool stub with the current configuration.])
+
+cat >>"$CONFIG_LT" <<\_LTEOF
+lt_cl_silent=false
+exec AS_MESSAGE_LOG_FD>>config.log
+{
+ echo
+ AS_BOX([Running $as_me.])
+} >&AS_MESSAGE_LOG_FD
+
+lt_cl_help="\
+'$as_me' creates a local libtool stub from the current configuration,
+for use in further configure time tests before the real libtool is
+generated.
+
+Usage: $[0] [[OPTIONS]]
+
+ -h, --help print this help, then exit
+ -V, --version print version number, then exit
+ -q, --quiet do not print progress messages
+ -d, --debug don't remove temporary files
+
+Report bugs to <bug-libtool@gnu.org>."
+
+lt_cl_version="\
+m4_ifset([AC_PACKAGE_NAME], [AC_PACKAGE_NAME ])config.lt[]dnl
+m4_ifset([AC_PACKAGE_VERSION], [ AC_PACKAGE_VERSION])
+configured by $[0], generated by m4_PACKAGE_STRING.
+
+Copyright (C) 2011 Free Software Foundation, Inc.
+This config.lt script is free software; the Free Software Foundation
+gives unlimited permision to copy, distribute and modify it."
+
+while test 0 != $[#]
+do
+ case $[1] in
+ --version | --v* | -V )
+ echo "$lt_cl_version"; exit 0 ;;
+ --help | --h* | -h )
+ echo "$lt_cl_help"; exit 0 ;;
+ --debug | --d* | -d )
+ debug=: ;;
+ --quiet | --q* | --silent | --s* | -q )
+ lt_cl_silent=: ;;
+
+ -*) AC_MSG_ERROR([unrecognized option: $[1]
+Try '$[0] --help' for more information.]) ;;
+
+ *) AC_MSG_ERROR([unrecognized argument: $[1]
+Try '$[0] --help' for more information.]) ;;
+ esac
+ shift
+done
+
+if $lt_cl_silent; then
+ exec AS_MESSAGE_FD>/dev/null
+fi
+_LTEOF
+
+cat >>"$CONFIG_LT" <<_LTEOF
+_LT_OUTPUT_LIBTOOL_COMMANDS_INIT
+_LTEOF
+
+cat >>"$CONFIG_LT" <<\_LTEOF
+AC_MSG_NOTICE([creating $ofile])
+_LT_OUTPUT_LIBTOOL_COMMANDS
+AS_EXIT(0)
+_LTEOF
+chmod +x "$CONFIG_LT"
+
+# configure is writing to config.log, but config.lt does its own redirection,
+# appending to config.log, which fails on DOS, as config.log is still kept
+# open by configure. Here we exec the FD to /dev/null, effectively closing
+# config.log, so it can be properly (re)opened and appended to by config.lt.
+lt_cl_success=:
+test yes = "$silent" &&
+ lt_config_lt_args="$lt_config_lt_args --quiet"
+exec AS_MESSAGE_LOG_FD>/dev/null
+$SHELL "$CONFIG_LT" $lt_config_lt_args || lt_cl_success=false
+exec AS_MESSAGE_LOG_FD>>config.log
+$lt_cl_success || AS_EXIT(1)
+])# LT_OUTPUT
+
+
+# _LT_CONFIG(TAG)
+# ---------------
+# If TAG is the built-in tag, create an initial libtool script with a
+# default configuration from the untagged config vars. Otherwise add code
+# to config.status for appending the configuration named by TAG from the
+# matching tagged config vars.
+m4_defun([_LT_CONFIG],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+_LT_CONFIG_SAVE_COMMANDS([
+ m4_define([_LT_TAG], m4_if([$1], [], [C], [$1]))dnl
+ m4_if(_LT_TAG, [C], [
+ # See if we are running on zsh, and set the options that allow our
+ # commands through without removal of \ escapes.
+ if test -n "${ZSH_VERSION+set}"; then
+ setopt NO_GLOB_SUBST
+ fi
+
+ cfgfile=${ofile}T
+ trap "$RM \"$cfgfile\"; exit 1" 1 2 15
+ $RM "$cfgfile"
+
+ cat <<_LT_EOF >> "$cfgfile"
+#! $SHELL
+# Generated automatically by $as_me ($PACKAGE) $VERSION
+# Libtool was configured on host `(hostname || uname -n) 2>/dev/null | sed 1q`:
+# NOTE: Changes made to this file will be lost: look at ltmain.sh.
+
+# Provide generalized library-building support services.
+# Written by Gordon Matzigkeit, 1996
+
+_LT_COPYING
+_LT_LIBTOOL_TAGS
+
+# Configured defaults for sys_lib_dlsearch_path munging.
+: \${LT_SYS_LIBRARY_PATH="$configure_time_lt_sys_library_path"}
+
+# ### BEGIN LIBTOOL CONFIG
+_LT_LIBTOOL_CONFIG_VARS
+_LT_LIBTOOL_TAG_VARS
+# ### END LIBTOOL CONFIG
+
+_LT_EOF
+
+ cat <<'_LT_EOF' >> "$cfgfile"
+
+# ### BEGIN FUNCTIONS SHARED WITH CONFIGURE
+
+_LT_PREPARE_MUNGE_PATH_LIST
+_LT_PREPARE_CC_BASENAME
+
+# ### END FUNCTIONS SHARED WITH CONFIGURE
+
+_LT_EOF
+
+ case $host_os in
+ aix3*)
+ cat <<\_LT_EOF >> "$cfgfile"
+# AIX sometimes has problems with the GCC collect2 program. For some
+# reason, if we set the COLLECT_NAMES environment variable, the problems
+# vanish in a puff of smoke.
+if test set != "${COLLECT_NAMES+set}"; then
+ COLLECT_NAMES=
+ export COLLECT_NAMES
+fi
+_LT_EOF
+ ;;
+ esac
+
+ _LT_PROG_LTMAIN
+
+ # We use sed instead of cat because bash on DJGPP gets confused if
+ # if finds mixed CR/LF and LF-only lines. Since sed operates in
+ # text mode, it properly converts lines to CR/LF. This bash problem
+ # is reportedly fixed, but why not run on old versions too?
+ sed '$q' "$ltmain" >> "$cfgfile" \
+ || (rm -f "$cfgfile"; exit 1)
+
+ mv -f "$cfgfile" "$ofile" ||
+ (rm -f "$ofile" && cp "$cfgfile" "$ofile" && rm -f "$cfgfile")
+ chmod +x "$ofile"
+],
+[cat <<_LT_EOF >> "$ofile"
+
+dnl Unfortunately we have to use $1 here, since _LT_TAG is not expanded
+dnl in a comment (ie after a #).
+# ### BEGIN LIBTOOL TAG CONFIG: $1
+_LT_LIBTOOL_TAG_VARS(_LT_TAG)
+# ### END LIBTOOL TAG CONFIG: $1
+_LT_EOF
+])dnl /m4_if
+],
+[m4_if([$1], [], [
+ PACKAGE='$PACKAGE'
+ VERSION='$VERSION'
+ RM='$RM'
+ ofile='$ofile'], [])
+])dnl /_LT_CONFIG_SAVE_COMMANDS
+])# _LT_CONFIG
+
+
+# LT_SUPPORTED_TAG(TAG)
+# ---------------------
+# Trace this macro to discover what tags are supported by the libtool
+# --tag option, using:
+# autoconf --trace 'LT_SUPPORTED_TAG:$1'
+AC_DEFUN([LT_SUPPORTED_TAG], [])
+
+
+# C support is built-in for now
+m4_define([_LT_LANG_C_enabled], [])
+m4_define([_LT_TAGS], [])
+
+
+# LT_LANG(LANG)
+# -------------
+# Enable libtool support for the given language if not already enabled.
+AC_DEFUN([LT_LANG],
+[AC_BEFORE([$0], [LT_OUTPUT])dnl
+m4_case([$1],
+ [C], [_LT_LANG(C)],
+ [C++], [_LT_LANG(CXX)],
+ [Go], [_LT_LANG(GO)],
+ [Java], [_LT_LANG(GCJ)],
+ [Fortran 77], [_LT_LANG(F77)],
+ [Fortran], [_LT_LANG(FC)],
+ [Windows Resource], [_LT_LANG(RC)],
+ [m4_ifdef([_LT_LANG_]$1[_CONFIG],
+ [_LT_LANG($1)],
+ [m4_fatal([$0: unsupported language: "$1"])])])dnl
+])# LT_LANG
+
+
+# _LT_LANG(LANGNAME)
+# ------------------
+m4_defun([_LT_LANG],
+[m4_ifdef([_LT_LANG_]$1[_enabled], [],
+ [LT_SUPPORTED_TAG([$1])dnl
+ m4_append([_LT_TAGS], [$1 ])dnl
+ m4_define([_LT_LANG_]$1[_enabled], [])dnl
+ _LT_LANG_$1_CONFIG($1)])dnl
+])# _LT_LANG
+
+
+m4_ifndef([AC_PROG_GO], [
+############################################################
+# NOTE: This macro has been submitted for inclusion into #
+# GNU Autoconf as AC_PROG_GO. When it is available in #
+# a released version of Autoconf we should remove this #
+# macro and use it instead. #
+############################################################
+m4_defun([AC_PROG_GO],
+[AC_LANG_PUSH(Go)dnl
+AC_ARG_VAR([GOC], [Go compiler command])dnl
+AC_ARG_VAR([GOFLAGS], [Go compiler flags])dnl
+_AC_ARG_VAR_LDFLAGS()dnl
+AC_CHECK_TOOL(GOC, gccgo)
+if test -z "$GOC"; then
+ if test -n "$ac_tool_prefix"; then
+ AC_CHECK_PROG(GOC, [${ac_tool_prefix}gccgo], [${ac_tool_prefix}gccgo])
+ fi
+fi
+if test -z "$GOC"; then
+ AC_CHECK_PROG(GOC, gccgo, gccgo, false)
+fi
+])#m4_defun
+])#m4_ifndef
+
+
+# _LT_LANG_DEFAULT_CONFIG
+# -----------------------
+m4_defun([_LT_LANG_DEFAULT_CONFIG],
+[AC_PROVIDE_IFELSE([AC_PROG_CXX],
+ [LT_LANG(CXX)],
+ [m4_define([AC_PROG_CXX], defn([AC_PROG_CXX])[LT_LANG(CXX)])])
+
+AC_PROVIDE_IFELSE([AC_PROG_F77],
+ [LT_LANG(F77)],
+ [m4_define([AC_PROG_F77], defn([AC_PROG_F77])[LT_LANG(F77)])])
+
+AC_PROVIDE_IFELSE([AC_PROG_FC],
+ [LT_LANG(FC)],
+ [m4_define([AC_PROG_FC], defn([AC_PROG_FC])[LT_LANG(FC)])])
+
+dnl The call to [A][M_PROG_GCJ] is quoted like that to stop aclocal
+dnl pulling things in needlessly.
+AC_PROVIDE_IFELSE([AC_PROG_GCJ],
+ [LT_LANG(GCJ)],
+ [AC_PROVIDE_IFELSE([A][M_PROG_GCJ],
+ [LT_LANG(GCJ)],
+ [AC_PROVIDE_IFELSE([LT_PROG_GCJ],
+ [LT_LANG(GCJ)],
+ [m4_ifdef([AC_PROG_GCJ],
+ [m4_define([AC_PROG_GCJ], defn([AC_PROG_GCJ])[LT_LANG(GCJ)])])
+ m4_ifdef([A][M_PROG_GCJ],
+ [m4_define([A][M_PROG_GCJ], defn([A][M_PROG_GCJ])[LT_LANG(GCJ)])])
+ m4_ifdef([LT_PROG_GCJ],
+ [m4_define([LT_PROG_GCJ], defn([LT_PROG_GCJ])[LT_LANG(GCJ)])])])])])
+
+AC_PROVIDE_IFELSE([AC_PROG_GO],
+ [LT_LANG(GO)],
+ [m4_define([AC_PROG_GO], defn([AC_PROG_GO])[LT_LANG(GO)])])
+
+AC_PROVIDE_IFELSE([LT_PROG_RC],
+ [LT_LANG(RC)],
+ [m4_define([LT_PROG_RC], defn([LT_PROG_RC])[LT_LANG(RC)])])
+])# _LT_LANG_DEFAULT_CONFIG
+
+# Obsolete macros:
+AU_DEFUN([AC_LIBTOOL_CXX], [LT_LANG(C++)])
+AU_DEFUN([AC_LIBTOOL_F77], [LT_LANG(Fortran 77)])
+AU_DEFUN([AC_LIBTOOL_FC], [LT_LANG(Fortran)])
+AU_DEFUN([AC_LIBTOOL_GCJ], [LT_LANG(Java)])
+AU_DEFUN([AC_LIBTOOL_RC], [LT_LANG(Windows Resource)])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_CXX], [])
+dnl AC_DEFUN([AC_LIBTOOL_F77], [])
+dnl AC_DEFUN([AC_LIBTOOL_FC], [])
+dnl AC_DEFUN([AC_LIBTOOL_GCJ], [])
+dnl AC_DEFUN([AC_LIBTOOL_RC], [])
+
+
+# _LT_TAG_COMPILER
+# ----------------
+m4_defun([_LT_TAG_COMPILER],
+[AC_REQUIRE([AC_PROG_CC])dnl
+
+_LT_DECL([LTCC], [CC], [1], [A C compiler])dnl
+_LT_DECL([LTCFLAGS], [CFLAGS], [1], [LTCC compiler flags])dnl
+_LT_TAGDECL([CC], [compiler], [1], [A language specific compiler])dnl
+_LT_TAGDECL([with_gcc], [GCC], [0], [Is the compiler the GNU compiler?])dnl
+
+# If no C compiler was specified, use CC.
+LTCC=${LTCC-"$CC"}
+
+# If no C compiler flags were specified, use CFLAGS.
+LTCFLAGS=${LTCFLAGS-"$CFLAGS"}
+
+# Allow CC to be a program name with arguments.
+compiler=$CC
+])# _LT_TAG_COMPILER
+
+
+# _LT_COMPILER_BOILERPLATE
+# ------------------------
+# Check for compiler boilerplate output or warnings with
+# the simple compiler test code.
+m4_defun([_LT_COMPILER_BOILERPLATE],
+[m4_require([_LT_DECL_SED])dnl
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_compile_test_code" >conftest.$ac_ext
+eval "$ac_compile" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_compiler_boilerplate=`cat conftest.err`
+$RM conftest*
+])# _LT_COMPILER_BOILERPLATE
+
+
+# _LT_LINKER_BOILERPLATE
+# ----------------------
+# Check for linker boilerplate output or warnings with
+# the simple link test code.
+m4_defun([_LT_LINKER_BOILERPLATE],
+[m4_require([_LT_DECL_SED])dnl
+ac_outfile=conftest.$ac_objext
+echo "$lt_simple_link_test_code" >conftest.$ac_ext
+eval "$ac_link" 2>&1 >/dev/null | $SED '/^$/d; /^ *+/d' >conftest.err
+_lt_linker_boilerplate=`cat conftest.err`
+$RM -r conftest*
+])# _LT_LINKER_BOILERPLATE
+
+# _LT_REQUIRED_DARWIN_CHECKS
+# -------------------------
+m4_defun_once([_LT_REQUIRED_DARWIN_CHECKS],[
+ case $host_os in
+ rhapsody* | darwin*)
+ AC_CHECK_TOOL([DSYMUTIL], [dsymutil], [:])
+ AC_CHECK_TOOL([NMEDIT], [nmedit], [:])
+ AC_CHECK_TOOL([LIPO], [lipo], [:])
+ AC_CHECK_TOOL([OTOOL], [otool], [:])
+ AC_CHECK_TOOL([OTOOL64], [otool64], [:])
+ _LT_DECL([], [DSYMUTIL], [1],
+ [Tool to manipulate archived DWARF debug symbol files on Mac OS X])
+ _LT_DECL([], [NMEDIT], [1],
+ [Tool to change global to local symbols on Mac OS X])
+ _LT_DECL([], [LIPO], [1],
+ [Tool to manipulate fat objects and archives on Mac OS X])
+ _LT_DECL([], [OTOOL], [1],
+ [ldd/readelf like tool for Mach-O binaries on Mac OS X])
+ _LT_DECL([], [OTOOL64], [1],
+ [ldd/readelf like tool for 64 bit Mach-O binaries on Mac OS X 10.4])
+
+ AC_CACHE_CHECK([for -single_module linker flag],[lt_cv_apple_cc_single_mod],
+ [lt_cv_apple_cc_single_mod=no
+ if test -z "$LT_MULTI_MODULE"; then
+ # By default we will add the -single_module flag. You can override
+ # by either setting the environment variable LT_MULTI_MODULE
+ # non-empty at configure time, or by adding -multi_module to the
+ # link flags.
+ rm -rf libconftest.dylib*
+ echo "int foo(void){return 1;}" > conftest.c
+ echo "$LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+-dynamiclib -Wl,-single_module conftest.c" >&AS_MESSAGE_LOG_FD
+ $LTCC $LTCFLAGS $LDFLAGS -o libconftest.dylib \
+ -dynamiclib -Wl,-single_module conftest.c 2>conftest.err
+ _lt_result=$?
+ # If there is a non-empty error log, and "single_module"
+ # appears in it, assume the flag caused a linker warning
+ if test -s conftest.err && $GREP single_module conftest.err; then
+ cat conftest.err >&AS_MESSAGE_LOG_FD
+ # Otherwise, if the output was created with a 0 exit code from
+ # the compiler, it worked.
+ elif test -f libconftest.dylib && test 0 = "$_lt_result"; then
+ lt_cv_apple_cc_single_mod=yes
+ else
+ cat conftest.err >&AS_MESSAGE_LOG_FD
+ fi
+ rm -rf libconftest.dylib*
+ rm -f conftest.*
+ fi])
+
+ AC_CACHE_CHECK([for -exported_symbols_list linker flag],
+ [lt_cv_ld_exported_symbols_list],
+ [lt_cv_ld_exported_symbols_list=no
+ save_LDFLAGS=$LDFLAGS
+ echo "_main" > conftest.sym
+ LDFLAGS="$LDFLAGS -Wl,-exported_symbols_list,conftest.sym"
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
+ [lt_cv_ld_exported_symbols_list=yes],
+ [lt_cv_ld_exported_symbols_list=no])
+ LDFLAGS=$save_LDFLAGS
+ ])
+
+ AC_CACHE_CHECK([for -force_load linker flag],[lt_cv_ld_force_load],
+ [lt_cv_ld_force_load=no
+ cat > conftest.c << _LT_EOF
+int forced_loaded() { return 2;}
+_LT_EOF
+ echo "$LTCC $LTCFLAGS -c -o conftest.o conftest.c" >&AS_MESSAGE_LOG_FD
+ $LTCC $LTCFLAGS -c -o conftest.o conftest.c 2>&AS_MESSAGE_LOG_FD
+ echo "$AR cru libconftest.a conftest.o" >&AS_MESSAGE_LOG_FD
+ $AR cru libconftest.a conftest.o 2>&AS_MESSAGE_LOG_FD
+ echo "$RANLIB libconftest.a" >&AS_MESSAGE_LOG_FD
+ $RANLIB libconftest.a 2>&AS_MESSAGE_LOG_FD
+ cat > conftest.c << _LT_EOF
+int main() { return 0;}
+_LT_EOF
+ echo "$LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a" >&AS_MESSAGE_LOG_FD
+ $LTCC $LTCFLAGS $LDFLAGS -o conftest conftest.c -Wl,-force_load,./libconftest.a 2>conftest.err
+ _lt_result=$?
+ if test -s conftest.err && $GREP force_load conftest.err; then
+ cat conftest.err >&AS_MESSAGE_LOG_FD
+ elif test -f conftest && test 0 = "$_lt_result" && $GREP forced_load conftest >/dev/null 2>&1; then
+ lt_cv_ld_force_load=yes
+ else
+ cat conftest.err >&AS_MESSAGE_LOG_FD
+ fi
+ rm -f conftest.err libconftest.a conftest conftest.c
+ rm -rf conftest.dSYM
+ ])
+ case $host_os in
+ rhapsody* | darwin1.[[012]])
+ _lt_dar_allow_undefined='$wl-undefined ${wl}suppress' ;;
+ darwin1.*)
+ _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
+ darwin*) # darwin 5.x on
+ # if running on 10.5 or later, the deployment target defaults
+ # to the OS version, if on x86, and 10.4, the deployment
+ # target defaults to 10.4. Don't you love it?
+ case ${MACOSX_DEPLOYMENT_TARGET-10.0},$host in
+ 10.0,*86*-darwin8*|10.0,*-darwin[[91]]*)
+ _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+ 10.[[012]][[,.]]*)
+ _lt_dar_allow_undefined='$wl-flat_namespace $wl-undefined ${wl}suppress' ;;
+ 10.*)
+ _lt_dar_allow_undefined='$wl-undefined ${wl}dynamic_lookup' ;;
+ esac
+ ;;
+ esac
+ if test yes = "$lt_cv_apple_cc_single_mod"; then
+ _lt_dar_single_mod='$single_module'
+ fi
+ if test yes = "$lt_cv_ld_exported_symbols_list"; then
+ _lt_dar_export_syms=' $wl-exported_symbols_list,$output_objdir/$libname-symbols.expsym'
+ else
+ _lt_dar_export_syms='~$NMEDIT -s $output_objdir/$libname-symbols.expsym $lib'
+ fi
+ if test : != "$DSYMUTIL" && test no = "$lt_cv_ld_force_load"; then
+ _lt_dsymutil='~$DSYMUTIL $lib || :'
+ else
+ _lt_dsymutil=
+ fi
+ ;;
+ esac
+])
+
+
+# _LT_DARWIN_LINKER_FEATURES([TAG])
+# ---------------------------------
+# Checks for linker and compiler features on darwin
+m4_defun([_LT_DARWIN_LINKER_FEATURES],
+[
+ m4_require([_LT_REQUIRED_DARWIN_CHECKS])
+ _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+ _LT_TAGVAR(hardcode_direct, $1)=no
+ _LT_TAGVAR(hardcode_automatic, $1)=yes
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+ if test yes = "$lt_cv_ld_force_load"; then
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience $wl-force_load,$conv\"; done; func_echo_all \"$new_convenience\"`'
+ m4_case([$1], [F77], [_LT_TAGVAR(compiler_needs_object, $1)=yes],
+ [FC], [_LT_TAGVAR(compiler_needs_object, $1)=yes])
+ else
+ _LT_TAGVAR(whole_archive_flag_spec, $1)=''
+ fi
+ _LT_TAGVAR(link_all_deplibs, $1)=yes
+ _LT_TAGVAR(allow_undefined_flag, $1)=$_lt_dar_allow_undefined
+ case $cc_basename in
+ ifort*|nagfor*) _lt_dar_can_shared=yes ;;
+ *) _lt_dar_can_shared=$GCC ;;
+ esac
+ if test yes = "$_lt_dar_can_shared"; then
+ output_verbose_link_cmd=func_echo_all
+ _LT_TAGVAR(archive_cmds, $1)="\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dsymutil"
+ _LT_TAGVAR(module_cmds, $1)="\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dsymutil"
+ _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$libobjs \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring $_lt_dar_single_mod$_lt_dar_export_syms$_lt_dsymutil"
+ _LT_TAGVAR(module_expsym_cmds, $1)="sed -e 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC \$allow_undefined_flag -o \$lib -bundle \$libobjs \$deplibs \$compiler_flags$_lt_dar_export_syms$_lt_dsymutil"
+ m4_if([$1], [CXX],
+[ if test yes != "$lt_cv_apple_cc_single_mod"; then
+ _LT_TAGVAR(archive_cmds, $1)="\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dsymutil"
+ _LT_TAGVAR(archive_expsym_cmds, $1)="sed 's|^|_|' < \$export_symbols > \$output_objdir/\$libname-symbols.expsym~\$CC -r -keep_private_externs -nostdlib -o \$lib-master.o \$libobjs~\$CC -dynamiclib \$allow_undefined_flag -o \$lib \$lib-master.o \$deplibs \$compiler_flags -install_name \$rpath/\$soname \$verstring$_lt_dar_export_syms$_lt_dsymutil"
+ fi
+],[])
+ else
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ fi
+])
+
+# _LT_SYS_MODULE_PATH_AIX([TAGNAME])
+# ----------------------------------
+# Links a minimal program and checks the executable
+# for the system default hardcoded library path. In most cases,
+# this is /usr/lib:/lib, but when the MPI compilers are used
+# the location of the communication and MPI libs are included too.
+# If we don't find anything, use the default library path according
+# to the aix ld manual.
+# Store the results from the different compilers for each TAGNAME.
+# Allow to override them for all tags through lt_cv_aix_libpath.
+m4_defun([_LT_SYS_MODULE_PATH_AIX],
+[m4_require([_LT_DECL_SED])dnl
+if test set = "${lt_cv_aix_libpath+set}"; then
+ aix_libpath=$lt_cv_aix_libpath
+else
+ AC_CACHE_VAL([_LT_TAGVAR([lt_cv_aix_libpath_], [$1])],
+ [AC_LINK_IFELSE([AC_LANG_PROGRAM],[
+ lt_aix_libpath_sed='[
+ /Import File Strings/,/^$/ {
+ /^0/ {
+ s/^0 *\([^ ]*\) *$/\1/
+ p
+ }
+ }]'
+ _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -H conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+ # Check for a 64-bit object if we didn't find anything.
+ if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then
+ _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=`dump -HX64 conftest$ac_exeext 2>/dev/null | $SED -n -e "$lt_aix_libpath_sed"`
+ fi],[])
+ if test -z "$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])"; then
+ _LT_TAGVAR([lt_cv_aix_libpath_], [$1])=/usr/lib:/lib
+ fi
+ ])
+ aix_libpath=$_LT_TAGVAR([lt_cv_aix_libpath_], [$1])
+fi
+])# _LT_SYS_MODULE_PATH_AIX
+
+
+# _LT_SHELL_INIT(ARG)
+# -------------------
+m4_define([_LT_SHELL_INIT],
+[m4_divert_text([M4SH-INIT], [$1
+])])# _LT_SHELL_INIT
+
+
+
+# _LT_PROG_ECHO_BACKSLASH
+# -----------------------
+# Find how we can fake an echo command that does not interpret backslash.
+# In particular, with Autoconf 2.60 or later we add some code to the start
+# of the generated configure script that will find a shell with a builtin
+# printf (that we can use as an echo command).
+m4_defun([_LT_PROG_ECHO_BACKSLASH],
+[ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
+ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
+
+AC_MSG_CHECKING([how to print strings])
+# Test print first, because it will be a builtin if present.
+if test "X`( print -r -- -n ) 2>/dev/null`" = X-n && \
+ test "X`print -r -- $ECHO 2>/dev/null`" = "X$ECHO"; then
+ ECHO='print -r --'
+elif test "X`printf %s $ECHO 2>/dev/null`" = "X$ECHO"; then
+ ECHO='printf %s\n'
+else
+ # Use this function as a fallback that always works.
+ func_fallback_echo ()
+ {
+ eval 'cat <<_LTECHO_EOF
+$[]1
+_LTECHO_EOF'
+ }
+ ECHO='func_fallback_echo'
+fi
+
+# func_echo_all arg...
+# Invoke $ECHO with all args, space-separated.
+func_echo_all ()
+{
+ $ECHO "$*"
+}
+
+case $ECHO in
+ printf*) AC_MSG_RESULT([printf]) ;;
+ print*) AC_MSG_RESULT([print -r]) ;;
+ *) AC_MSG_RESULT([cat]) ;;
+esac
+
+m4_ifdef([_AS_DETECT_SUGGESTED],
+[_AS_DETECT_SUGGESTED([
+ test -n "${ZSH_VERSION+set}${BASH_VERSION+set}" || (
+ ECHO='\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\\'
+ ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO
+ ECHO=$ECHO$ECHO$ECHO$ECHO$ECHO$ECHO
+ PATH=/empty FPATH=/empty; export PATH FPATH
+ test "X`printf %s $ECHO`" = "X$ECHO" \
+ || test "X`print -r -- $ECHO`" = "X$ECHO" )])])
+
+_LT_DECL([], [SHELL], [1], [Shell to use when invoking shell scripts])
+_LT_DECL([], [ECHO], [1], [An echo program that protects backslashes])
+])# _LT_PROG_ECHO_BACKSLASH
+
+
+# _LT_WITH_SYSROOT
+# ----------------
+AC_DEFUN([_LT_WITH_SYSROOT],
+[AC_MSG_CHECKING([for sysroot])
+AC_ARG_WITH([sysroot],
+[AS_HELP_STRING([--with-sysroot@<:@=DIR@:>@],
+ [Search for dependent libraries within DIR (or the compiler's sysroot
+ if not specified).])],
+[], [with_sysroot=no])
+
+dnl lt_sysroot will always be passed unquoted. We quote it here
+dnl in case the user passed a directory name.
+lt_sysroot=
+case $with_sysroot in #(
+ yes)
+ if test yes = "$GCC"; then
+ lt_sysroot=`$CC --print-sysroot 2>/dev/null`
+ fi
+ ;; #(
+ /*)
+ lt_sysroot=`echo "$with_sysroot" | sed -e "$sed_quote_subst"`
+ ;; #(
+ no|'')
+ ;; #(
+ *)
+ AC_MSG_RESULT([$with_sysroot])
+ AC_MSG_ERROR([The sysroot must be an absolute path.])
+ ;;
+esac
+
+ AC_MSG_RESULT([${lt_sysroot:-no}])
+_LT_DECL([], [lt_sysroot], [0], [The root where to search for ]dnl
+[dependent libraries, and where our libraries should be installed.])])
+
+# _LT_ENABLE_LOCK
+# ---------------
+m4_defun([_LT_ENABLE_LOCK],
+[AC_ARG_ENABLE([libtool-lock],
+ [AS_HELP_STRING([--disable-libtool-lock],
+ [avoid locking (might break parallel builds)])])
+test no = "$enable_libtool_lock" || enable_libtool_lock=yes
+
+# Some flags need to be propagated to the compiler or linker for good
+# libtool support.
+case $host in
+ia64-*-hpux*)
+ # Find out what ABI is being produced by ac_compile, and set mode
+ # options accordingly.
+ echo 'int i;' > conftest.$ac_ext
+ if AC_TRY_EVAL(ac_compile); then
+ case `/usr/bin/file conftest.$ac_objext` in
+ *ELF-32*)
+ HPUX_IA64_MODE=32
+ ;;
+ *ELF-64*)
+ HPUX_IA64_MODE=64
+ ;;
+ esac
+ fi
+ rm -rf conftest*
+ ;;
+*-*-irix6*)
+ # Find out what ABI is being produced by ac_compile, and set linker
+ # options accordingly.
+ echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext
+ if AC_TRY_EVAL(ac_compile); then
+ if test yes = "$lt_cv_prog_gnu_ld"; then
+ case `/usr/bin/file conftest.$ac_objext` in
+ *32-bit*)
+ LD="${LD-ld} -melf32bsmip"
+ ;;
+ *N32*)
+ LD="${LD-ld} -melf32bmipn32"
+ ;;
+ *64-bit*)
+ LD="${LD-ld} -melf64bmip"
+ ;;
+ esac
+ else
+ case `/usr/bin/file conftest.$ac_objext` in
+ *32-bit*)
+ LD="${LD-ld} -32"
+ ;;
+ *N32*)
+ LD="${LD-ld} -n32"
+ ;;
+ *64-bit*)
+ LD="${LD-ld} -64"
+ ;;
+ esac
+ fi
+ fi
+ rm -rf conftest*
+ ;;
+
+mips64*-*linux*)
+ # Find out what ABI is being produced by ac_compile, and set linker
+ # options accordingly.
+ echo '[#]line '$LINENO' "configure"' > conftest.$ac_ext
+ if AC_TRY_EVAL(ac_compile); then
+ emul=elf
+ case `/usr/bin/file conftest.$ac_objext` in
+ *32-bit*)
+ emul="${emul}32"
+ ;;
+ *64-bit*)
+ emul="${emul}64"
+ ;;
+ esac
+ case `/usr/bin/file conftest.$ac_objext` in
+ *MSB*)
+ emul="${emul}btsmip"
+ ;;
+ *LSB*)
+ emul="${emul}ltsmip"
+ ;;
+ esac
+ case `/usr/bin/file conftest.$ac_objext` in
+ *N32*)
+ emul="${emul}n32"
+ ;;
+ esac
+ LD="${LD-ld} -m $emul"
+ fi
+ rm -rf conftest*
+ ;;
+
+x86_64-*kfreebsd*-gnu|x86_64-*linux*|powerpc*-*linux*| \
+s390*-*linux*|s390*-*tpf*|sparc*-*linux*)
+ # Find out what ABI is being produced by ac_compile, and set linker
+ # options accordingly. Note that the listed cases only cover the
+ # situations where additional linker options are needed (such as when
+ # doing 32-bit compilation for a host where ld defaults to 64-bit, or
+ # vice versa); the common cases where no linker options are needed do
+ # not appear in the list.
+ echo 'int i;' > conftest.$ac_ext
+ if AC_TRY_EVAL(ac_compile); then
+ case `/usr/bin/file conftest.o` in
+ *32-bit*)
+ case $host in
+ x86_64-*kfreebsd*-gnu)
+ LD="${LD-ld} -m elf_i386_fbsd"
+ ;;
+ x86_64-*linux*)
+ case `/usr/bin/file conftest.o` in
+ *x86-64*)
+ LD="${LD-ld} -m elf32_x86_64"
+ ;;
+ *)
+ LD="${LD-ld} -m elf_i386"
+ ;;
+ esac
+ ;;
+ powerpc64le-*linux*)
+ LD="${LD-ld} -m elf32lppclinux"
+ ;;
+ powerpc64-*linux*)
+ LD="${LD-ld} -m elf32ppclinux"
+ ;;
+ s390x-*linux*)
+ LD="${LD-ld} -m elf_s390"
+ ;;
+ sparc64-*linux*)
+ LD="${LD-ld} -m elf32_sparc"
+ ;;
+ esac
+ ;;
+ *64-bit*)
+ case $host in
+ x86_64-*kfreebsd*-gnu)
+ LD="${LD-ld} -m elf_x86_64_fbsd"
+ ;;
+ x86_64-*linux*)
+ LD="${LD-ld} -m elf_x86_64"
+ ;;
+ powerpcle-*linux*)
+ LD="${LD-ld} -m elf64lppc"
+ ;;
+ powerpc-*linux*)
+ LD="${LD-ld} -m elf64ppc"
+ ;;
+ s390*-*linux*|s390*-*tpf*)
+ LD="${LD-ld} -m elf64_s390"
+ ;;
+ sparc*-*linux*)
+ LD="${LD-ld} -m elf64_sparc"
+ ;;
+ esac
+ ;;
+ esac
+ fi
+ rm -rf conftest*
+ ;;
+
+*-*-sco3.2v5*)
+ # On SCO OpenServer 5, we need -belf to get full-featured binaries.
+ SAVE_CFLAGS=$CFLAGS
+ CFLAGS="$CFLAGS -belf"
+ AC_CACHE_CHECK([whether the C compiler needs -belf], lt_cv_cc_needs_belf,
+ [AC_LANG_PUSH(C)
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([[]],[[]])],[lt_cv_cc_needs_belf=yes],[lt_cv_cc_needs_belf=no])
+ AC_LANG_POP])
+ if test yes != "$lt_cv_cc_needs_belf"; then
+ # this is probably gcc 2.8.0, egcs 1.0 or newer; no need for -belf
+ CFLAGS=$SAVE_CFLAGS
+ fi
+ ;;
+*-*solaris*)
+ # Find out what ABI is being produced by ac_compile, and set linker
+ # options accordingly.
+ echo 'int i;' > conftest.$ac_ext
+ if AC_TRY_EVAL(ac_compile); then
+ case `/usr/bin/file conftest.o` in
+ *64-bit*)
+ case $lt_cv_prog_gnu_ld in
+ yes*)
+ case $host in
+ i?86-*-solaris*|x86_64-*-solaris*)
+ LD="${LD-ld} -m elf_x86_64"
+ ;;
+ sparc*-*-solaris*)
+ LD="${LD-ld} -m elf64_sparc"
+ ;;
+ esac
+ # GNU ld 2.21 introduced _sol2 emulations. Use them if available.
+ if ${LD-ld} -V | grep _sol2 >/dev/null 2>&1; then
+ LD=${LD-ld}_sol2
+ fi
+ ;;
+ *)
+ if ${LD-ld} -64 -r -o conftest2.o conftest.o >/dev/null 2>&1; then
+ LD="${LD-ld} -64"
+ fi
+ ;;
+ esac
+ ;;
+ esac
+ fi
+ rm -rf conftest*
+ ;;
+esac
+
+need_locks=$enable_libtool_lock
+])# _LT_ENABLE_LOCK
+
+
+# _LT_PROG_AR
+# -----------
+m4_defun([_LT_PROG_AR],
+[AC_CHECK_TOOLS(AR, [ar], false)
+: ${AR=ar}
+: ${AR_FLAGS=cru}
+_LT_DECL([], [AR], [1], [The archiver])
+_LT_DECL([], [AR_FLAGS], [1], [Flags to create an archive])
+
+AC_CACHE_CHECK([for archiver @FILE support], [lt_cv_ar_at_file],
+ [lt_cv_ar_at_file=no
+ AC_COMPILE_IFELSE([AC_LANG_PROGRAM],
+ [echo conftest.$ac_objext > conftest.lst
+ lt_ar_try='$AR $AR_FLAGS libconftest.a @conftest.lst >&AS_MESSAGE_LOG_FD'
+ AC_TRY_EVAL([lt_ar_try])
+ if test 0 -eq "$ac_status"; then
+ # Ensure the archiver fails upon bogus file names.
+ rm -f conftest.$ac_objext libconftest.a
+ AC_TRY_EVAL([lt_ar_try])
+ if test 0 -ne "$ac_status"; then
+ lt_cv_ar_at_file=@
+ fi
+ fi
+ rm -f conftest.* libconftest.a
+ ])
+ ])
+
+if test no = "$lt_cv_ar_at_file"; then
+ archiver_list_spec=
+else
+ archiver_list_spec=$lt_cv_ar_at_file
+fi
+_LT_DECL([], [archiver_list_spec], [1],
+ [How to feed a file listing to the archiver])
+])# _LT_PROG_AR
+
+
+# _LT_CMD_OLD_ARCHIVE
+# -------------------
+m4_defun([_LT_CMD_OLD_ARCHIVE],
+[_LT_PROG_AR
+
+AC_CHECK_TOOL(STRIP, strip, :)
+test -z "$STRIP" && STRIP=:
+_LT_DECL([], [STRIP], [1], [A symbol stripping program])
+
+AC_CHECK_TOOL(RANLIB, ranlib, :)
+test -z "$RANLIB" && RANLIB=:
+_LT_DECL([], [RANLIB], [1],
+ [Commands used to install an old-style archive])
+
+# Determine commands to create old-style static archives.
+old_archive_cmds='$AR $AR_FLAGS $oldlib$oldobjs'
+old_postinstall_cmds='chmod 644 $oldlib'
+old_postuninstall_cmds=
+
+if test -n "$RANLIB"; then
+ case $host_os in
+ bitrig* | openbsd*)
+ old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB -t \$tool_oldlib"
+ ;;
+ *)
+ old_postinstall_cmds="$old_postinstall_cmds~\$RANLIB \$tool_oldlib"
+ ;;
+ esac
+ old_archive_cmds="$old_archive_cmds~\$RANLIB \$tool_oldlib"
+fi
+
+case $host_os in
+ darwin*)
+ lock_old_archive_extraction=yes ;;
+ *)
+ lock_old_archive_extraction=no ;;
+esac
+_LT_DECL([], [old_postinstall_cmds], [2])
+_LT_DECL([], [old_postuninstall_cmds], [2])
+_LT_TAGDECL([], [old_archive_cmds], [2],
+ [Commands used to build an old-style archive])
+_LT_DECL([], [lock_old_archive_extraction], [0],
+ [Whether to use a lock for old archive extraction])
+])# _LT_CMD_OLD_ARCHIVE
+
+
+# _LT_COMPILER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
+# [OUTPUT-FILE], [ACTION-SUCCESS], [ACTION-FAILURE])
+# ----------------------------------------------------------------
+# Check whether the given compiler option works
+AC_DEFUN([_LT_COMPILER_OPTION],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_SED])dnl
+AC_CACHE_CHECK([$1], [$2],
+ [$2=no
+ m4_if([$4], , [ac_outfile=conftest.$ac_objext], [ac_outfile=$4])
+ echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+ lt_compiler_flag="$3" ## exclude from sc_useless_quotes_in_assignment
+ # Insert the option either (1) after the last *FLAGS variable, or
+ # (2) before a word containing "conftest.", or (3) at the end.
+ # Note that $ac_compile itself does not contain backslashes and begins
+ # with a dollar sign (not a hyphen), so the echo should work correctly.
+ # The option is referenced via a variable to avoid confusing sed.
+ lt_compile=`echo "$ac_compile" | $SED \
+ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+ -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
+ -e 's:$: $lt_compiler_flag:'`
+ (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
+ (eval "$lt_compile" 2>conftest.err)
+ ac_status=$?
+ cat conftest.err >&AS_MESSAGE_LOG_FD
+ echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+ if (exit $ac_status) && test -s "$ac_outfile"; then
+ # The compiler can only warn and ignore the option if not recognized
+ # So say no if there are warnings other than the usual output.
+ $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' >conftest.exp
+ $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+ if test ! -s conftest.er2 || diff conftest.exp conftest.er2 >/dev/null; then
+ $2=yes
+ fi
+ fi
+ $RM conftest*
+])
+
+if test yes = "[$]$2"; then
+ m4_if([$5], , :, [$5])
+else
+ m4_if([$6], , :, [$6])
+fi
+])# _LT_COMPILER_OPTION
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_COMPILER_OPTION], [_LT_COMPILER_OPTION])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_COMPILER_OPTION], [])
+
+
+# _LT_LINKER_OPTION(MESSAGE, VARIABLE-NAME, FLAGS,
+# [ACTION-SUCCESS], [ACTION-FAILURE])
+# ----------------------------------------------------
+# Check whether the given linker option works
+AC_DEFUN([_LT_LINKER_OPTION],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_SED])dnl
+AC_CACHE_CHECK([$1], [$2],
+ [$2=no
+ save_LDFLAGS=$LDFLAGS
+ LDFLAGS="$LDFLAGS $3"
+ echo "$lt_simple_link_test_code" > conftest.$ac_ext
+ if (eval $ac_link 2>conftest.err) && test -s conftest$ac_exeext; then
+ # The linker can only warn and ignore the option if not recognized
+ # So say no if there are warnings
+ if test -s conftest.err; then
+ # Append any errors to the config.log.
+ cat conftest.err 1>&AS_MESSAGE_LOG_FD
+ $ECHO "$_lt_linker_boilerplate" | $SED '/^$/d' > conftest.exp
+ $SED '/^$/d; /^ *+/d' conftest.err >conftest.er2
+ if diff conftest.exp conftest.er2 >/dev/null; then
+ $2=yes
+ fi
+ else
+ $2=yes
+ fi
+ fi
+ $RM -r conftest*
+ LDFLAGS=$save_LDFLAGS
+])
+
+if test yes = "[$]$2"; then
+ m4_if([$4], , :, [$4])
+else
+ m4_if([$5], , :, [$5])
+fi
+])# _LT_LINKER_OPTION
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_LINKER_OPTION], [_LT_LINKER_OPTION])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_LINKER_OPTION], [])
+
+
+# LT_CMD_MAX_LEN
+#---------------
+AC_DEFUN([LT_CMD_MAX_LEN],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+# find the maximum length of command line arguments
+AC_MSG_CHECKING([the maximum length of command line arguments])
+AC_CACHE_VAL([lt_cv_sys_max_cmd_len], [dnl
+ i=0
+ teststring=ABCD
+
+ case $build_os in
+ msdosdjgpp*)
+ # On DJGPP, this test can blow up pretty badly due to problems in libc
+ # (any single argument exceeding 2000 bytes causes a buffer overrun
+ # during glob expansion). Even if it were fixed, the result of this
+ # check would be larger than it should be.
+ lt_cv_sys_max_cmd_len=12288; # 12K is about right
+ ;;
+
+ gnu*)
+ # Under GNU Hurd, this test is not required because there is
+ # no limit to the length of command line arguments.
+ # Libtool will interpret -1 as no limit whatsoever
+ lt_cv_sys_max_cmd_len=-1;
+ ;;
+
+ cygwin* | mingw* | cegcc*)
+ # On Win9x/ME, this test blows up -- it succeeds, but takes
+ # about 5 minutes as the teststring grows exponentially.
+ # Worse, since 9x/ME are not pre-emptively multitasking,
+ # you end up with a "frozen" computer, even though with patience
+ # the test eventually succeeds (with a max line length of 256k).
+ # Instead, let's just punt: use the minimum linelength reported by
+ # all of the supported platforms: 8192 (on NT/2K/XP).
+ lt_cv_sys_max_cmd_len=8192;
+ ;;
+
+ mint*)
+ # On MiNT this can take a long time and run out of memory.
+ lt_cv_sys_max_cmd_len=8192;
+ ;;
+
+ amigaos*)
+ # On AmigaOS with pdksh, this test takes hours, literally.
+ # So we just punt and use a minimum line length of 8192.
+ lt_cv_sys_max_cmd_len=8192;
+ ;;
+
+ bitrig* | darwin* | dragonfly* | freebsd* | netbsd* | openbsd*)
+ # This has been around since 386BSD, at least. Likely further.
+ if test -x /sbin/sysctl; then
+ lt_cv_sys_max_cmd_len=`/sbin/sysctl -n kern.argmax`
+ elif test -x /usr/sbin/sysctl; then
+ lt_cv_sys_max_cmd_len=`/usr/sbin/sysctl -n kern.argmax`
+ else
+ lt_cv_sys_max_cmd_len=65536 # usable default for all BSDs
+ fi
+ # And add a safety zone
+ lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+ lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+ ;;
+
+ interix*)
+ # We know the value 262144 and hardcode it with a safety zone (like BSD)
+ lt_cv_sys_max_cmd_len=196608
+ ;;
+
+ os2*)
+ # The test takes a long time on OS/2.
+ lt_cv_sys_max_cmd_len=8192
+ ;;
+
+ osf*)
+ # Dr. Hans Ekkehard Plesser reports seeing a kernel panic running configure
+ # due to this test when exec_disable_arg_limit is 1 on Tru64. It is not
+ # nice to cause kernel panics so lets avoid the loop below.
+ # First set a reasonable default.
+ lt_cv_sys_max_cmd_len=16384
+ #
+ if test -x /sbin/sysconfig; then
+ case `/sbin/sysconfig -q proc exec_disable_arg_limit` in
+ *1*) lt_cv_sys_max_cmd_len=-1 ;;
+ esac
+ fi
+ ;;
+ sco3.2v5*)
+ lt_cv_sys_max_cmd_len=102400
+ ;;
+ sysv5* | sco5v6* | sysv4.2uw2*)
+ kargmax=`grep ARG_MAX /etc/conf/cf.d/stune 2>/dev/null`
+ if test -n "$kargmax"; then
+ lt_cv_sys_max_cmd_len=`echo $kargmax | sed 's/.*[[ ]]//'`
+ else
+ lt_cv_sys_max_cmd_len=32768
+ fi
+ ;;
+ *)
+ lt_cv_sys_max_cmd_len=`(getconf ARG_MAX) 2> /dev/null`
+ if test -n "$lt_cv_sys_max_cmd_len" && \
+ test undefined != "$lt_cv_sys_max_cmd_len"; then
+ lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 4`
+ lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \* 3`
+ else
+ # Make teststring a little bigger before we do anything with it.
+ # a 1K string should be a reasonable start.
+ for i in 1 2 3 4 5 6 7 8; do
+ teststring=$teststring$teststring
+ done
+ SHELL=${SHELL-${CONFIG_SHELL-/bin/sh}}
+ # If test is not a shell built-in, we'll probably end up computing a
+ # maximum length that is only half of the actual maximum length, but
+ # we can't tell.
+ while { test X`env echo "$teststring$teststring" 2>/dev/null` \
+ = "X$teststring$teststring"; } >/dev/null 2>&1 &&
+ test 17 != "$i" # 1/2 MB should be enough
+ do
+ i=`expr $i + 1`
+ teststring=$teststring$teststring
+ done
+ # Only check the string length outside the loop.
+ lt_cv_sys_max_cmd_len=`expr "X$teststring" : ".*" 2>&1`
+ teststring=
+ # Add a significant safety factor because C++ compilers can tack on
+ # massive amounts of additional arguments before passing them to the
+ # linker. It appears as though 1/2 is a usable value.
+ lt_cv_sys_max_cmd_len=`expr $lt_cv_sys_max_cmd_len \/ 2`
+ fi
+ ;;
+ esac
+])
+if test -n "$lt_cv_sys_max_cmd_len"; then
+ AC_MSG_RESULT($lt_cv_sys_max_cmd_len)
+else
+ AC_MSG_RESULT(none)
+fi
+max_cmd_len=$lt_cv_sys_max_cmd_len
+_LT_DECL([], [max_cmd_len], [0],
+ [What is the maximum length of a command?])
+])# LT_CMD_MAX_LEN
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_SYS_MAX_CMD_LEN], [LT_CMD_MAX_LEN])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_SYS_MAX_CMD_LEN], [])
+
+
+# _LT_HEADER_DLFCN
+# ----------------
+m4_defun([_LT_HEADER_DLFCN],
+[AC_CHECK_HEADERS([dlfcn.h], [], [], [AC_INCLUDES_DEFAULT])dnl
+])# _LT_HEADER_DLFCN
+
+
+# _LT_TRY_DLOPEN_SELF (ACTION-IF-TRUE, ACTION-IF-TRUE-W-USCORE,
+# ACTION-IF-FALSE, ACTION-IF-CROSS-COMPILING)
+# ----------------------------------------------------------------
+m4_defun([_LT_TRY_DLOPEN_SELF],
+[m4_require([_LT_HEADER_DLFCN])dnl
+if test yes = "$cross_compiling"; then :
+ [$4]
+else
+ lt_dlunknown=0; lt_dlno_uscore=1; lt_dlneed_uscore=2
+ lt_status=$lt_dlunknown
+ cat > conftest.$ac_ext <<_LT_EOF
+[#line $LINENO "configure"
+#include "confdefs.h"
+
+#if HAVE_DLFCN_H
+#include <dlfcn.h>
+#endif
+
+#include <stdio.h>
+
+#ifdef RTLD_GLOBAL
+# define LT_DLGLOBAL RTLD_GLOBAL
+#else
+# ifdef DL_GLOBAL
+# define LT_DLGLOBAL DL_GLOBAL
+# else
+# define LT_DLGLOBAL 0
+# endif
+#endif
+
+/* We may have to define LT_DLLAZY_OR_NOW in the command line if we
+ find out it does not work in some platform. */
+#ifndef LT_DLLAZY_OR_NOW
+# ifdef RTLD_LAZY
+# define LT_DLLAZY_OR_NOW RTLD_LAZY
+# else
+# ifdef DL_LAZY
+# define LT_DLLAZY_OR_NOW DL_LAZY
+# else
+# ifdef RTLD_NOW
+# define LT_DLLAZY_OR_NOW RTLD_NOW
+# else
+# ifdef DL_NOW
+# define LT_DLLAZY_OR_NOW DL_NOW
+# else
+# define LT_DLLAZY_OR_NOW 0
+# endif
+# endif
+# endif
+# endif
+#endif
+
+/* When -fvisibility=hidden is used, assume the code has been annotated
+ correspondingly for the symbols needed. */
+#if defined __GNUC__ && (((__GNUC__ == 3) && (__GNUC_MINOR__ >= 3)) || (__GNUC__ > 3))
+int fnord () __attribute__((visibility("default")));
+#endif
+
+int fnord () { return 42; }
+int main ()
+{
+ void *self = dlopen (0, LT_DLGLOBAL|LT_DLLAZY_OR_NOW);
+ int status = $lt_dlunknown;
+
+ if (self)
+ {
+ if (dlsym (self,"fnord")) status = $lt_dlno_uscore;
+ else
+ {
+ if (dlsym( self,"_fnord")) status = $lt_dlneed_uscore;
+ else puts (dlerror ());
+ }
+ /* dlclose (self); */
+ }
+ else
+ puts (dlerror ());
+
+ return status;
+}]
+_LT_EOF
+ if AC_TRY_EVAL(ac_link) && test -s "conftest$ac_exeext" 2>/dev/null; then
+ (./conftest; exit; ) >&AS_MESSAGE_LOG_FD 2>/dev/null
+ lt_status=$?
+ case x$lt_status in
+ x$lt_dlno_uscore) $1 ;;
+ x$lt_dlneed_uscore) $2 ;;
+ x$lt_dlunknown|x*) $3 ;;
+ esac
+ else :
+ # compilation failed
+ $3
+ fi
+fi
+rm -fr conftest*
+])# _LT_TRY_DLOPEN_SELF
+
+
+# LT_SYS_DLOPEN_SELF
+# ------------------
+AC_DEFUN([LT_SYS_DLOPEN_SELF],
+[m4_require([_LT_HEADER_DLFCN])dnl
+if test yes != "$enable_dlopen"; then
+ enable_dlopen=unknown
+ enable_dlopen_self=unknown
+ enable_dlopen_self_static=unknown
+else
+ lt_cv_dlopen=no
+ lt_cv_dlopen_libs=
+
+ case $host_os in
+ beos*)
+ lt_cv_dlopen=load_add_on
+ lt_cv_dlopen_libs=
+ lt_cv_dlopen_self=yes
+ ;;
+
+ mingw* | pw32* | cegcc*)
+ lt_cv_dlopen=LoadLibrary
+ lt_cv_dlopen_libs=
+ ;;
+
+ cygwin*)
+ lt_cv_dlopen=dlopen
+ lt_cv_dlopen_libs=
+ ;;
+
+ darwin*)
+ # if libdl is installed we need to link against it
+ AC_CHECK_LIB([dl], [dlopen],
+ [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl],[
+ lt_cv_dlopen=dyld
+ lt_cv_dlopen_libs=
+ lt_cv_dlopen_self=yes
+ ])
+ ;;
+
+ tpf*)
+ # Don't try to run any link tests for TPF. We know it's impossible
+ # because TPF is a cross-compiler, and we know how we open DSOs.
+ lt_cv_dlopen=dlopen
+ lt_cv_dlopen_libs=
+ lt_cv_dlopen_self=no
+ ;;
+
+ *)
+ AC_CHECK_FUNC([shl_load],
+ [lt_cv_dlopen=shl_load],
+ [AC_CHECK_LIB([dld], [shl_load],
+ [lt_cv_dlopen=shl_load lt_cv_dlopen_libs=-ldld],
+ [AC_CHECK_FUNC([dlopen],
+ [lt_cv_dlopen=dlopen],
+ [AC_CHECK_LIB([dl], [dlopen],
+ [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-ldl],
+ [AC_CHECK_LIB([svld], [dlopen],
+ [lt_cv_dlopen=dlopen lt_cv_dlopen_libs=-lsvld],
+ [AC_CHECK_LIB([dld], [dld_link],
+ [lt_cv_dlopen=dld_link lt_cv_dlopen_libs=-ldld])
+ ])
+ ])
+ ])
+ ])
+ ])
+ ;;
+ esac
+
+ if test no = "$lt_cv_dlopen"; then
+ enable_dlopen=no
+ else
+ enable_dlopen=yes
+ fi
+
+ case $lt_cv_dlopen in
+ dlopen)
+ save_CPPFLAGS=$CPPFLAGS
+ test yes = "$ac_cv_header_dlfcn_h" && CPPFLAGS="$CPPFLAGS -DHAVE_DLFCN_H"
+
+ save_LDFLAGS=$LDFLAGS
+ wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $export_dynamic_flag_spec\"
+
+ save_LIBS=$LIBS
+ LIBS="$lt_cv_dlopen_libs $LIBS"
+
+ AC_CACHE_CHECK([whether a program can dlopen itself],
+ lt_cv_dlopen_self, [dnl
+ _LT_TRY_DLOPEN_SELF(
+ lt_cv_dlopen_self=yes, lt_cv_dlopen_self=yes,
+ lt_cv_dlopen_self=no, lt_cv_dlopen_self=cross)
+ ])
+
+ if test yes = "$lt_cv_dlopen_self"; then
+ wl=$lt_prog_compiler_wl eval LDFLAGS=\"\$LDFLAGS $lt_prog_compiler_static\"
+ AC_CACHE_CHECK([whether a statically linked program can dlopen itself],
+ lt_cv_dlopen_self_static, [dnl
+ _LT_TRY_DLOPEN_SELF(
+ lt_cv_dlopen_self_static=yes, lt_cv_dlopen_self_static=yes,
+ lt_cv_dlopen_self_static=no, lt_cv_dlopen_self_static=cross)
+ ])
+ fi
+
+ CPPFLAGS=$save_CPPFLAGS
+ LDFLAGS=$save_LDFLAGS
+ LIBS=$save_LIBS
+ ;;
+ esac
+
+ case $lt_cv_dlopen_self in
+ yes|no) enable_dlopen_self=$lt_cv_dlopen_self ;;
+ *) enable_dlopen_self=unknown ;;
+ esac
+
+ case $lt_cv_dlopen_self_static in
+ yes|no) enable_dlopen_self_static=$lt_cv_dlopen_self_static ;;
+ *) enable_dlopen_self_static=unknown ;;
+ esac
+fi
+_LT_DECL([dlopen_support], [enable_dlopen], [0],
+ [Whether dlopen is supported])
+_LT_DECL([dlopen_self], [enable_dlopen_self], [0],
+ [Whether dlopen of programs is supported])
+_LT_DECL([dlopen_self_static], [enable_dlopen_self_static], [0],
+ [Whether dlopen of statically linked programs is supported])
+])# LT_SYS_DLOPEN_SELF
+
+# Old name:
+AU_ALIAS([AC_LIBTOOL_DLOPEN_SELF], [LT_SYS_DLOPEN_SELF])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_DLOPEN_SELF], [])
+
+
+# _LT_COMPILER_C_O([TAGNAME])
+# ---------------------------
+# Check to see if options -c and -o are simultaneously supported by compiler.
+# This macro does not hard code the compiler like AC_PROG_CC_C_O.
+m4_defun([_LT_COMPILER_C_O],
+[m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_TAG_COMPILER])dnl
+AC_CACHE_CHECK([if $compiler supports -c -o file.$ac_objext],
+ [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)],
+ [_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=no
+ $RM -r conftest 2>/dev/null
+ mkdir conftest
+ cd conftest
+ mkdir out
+ echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+ lt_compiler_flag="-o out/conftest2.$ac_objext"
+ # Insert the option either (1) after the last *FLAGS variable, or
+ # (2) before a word containing "conftest.", or (3) at the end.
+ # Note that $ac_compile itself does not contain backslashes and begins
+ # with a dollar sign (not a hyphen), so the echo should work correctly.
+ lt_compile=`echo "$ac_compile" | $SED \
+ -e 's:.*FLAGS}\{0,1\} :&$lt_compiler_flag :; t' \
+ -e 's: [[^ ]]*conftest\.: $lt_compiler_flag&:; t' \
+ -e 's:$: $lt_compiler_flag:'`
+ (eval echo "\"\$as_me:$LINENO: $lt_compile\"" >&AS_MESSAGE_LOG_FD)
+ (eval "$lt_compile" 2>out/conftest.err)
+ ac_status=$?
+ cat out/conftest.err >&AS_MESSAGE_LOG_FD
+ echo "$as_me:$LINENO: \$? = $ac_status" >&AS_MESSAGE_LOG_FD
+ if (exit $ac_status) && test -s out/conftest2.$ac_objext
+ then
+ # The compiler can only warn and ignore the option if not recognized
+ # So say no if there are warnings
+ $ECHO "$_lt_compiler_boilerplate" | $SED '/^$/d' > out/conftest.exp
+ $SED '/^$/d; /^ *+/d' out/conftest.err >out/conftest.er2
+ if test ! -s out/conftest.er2 || diff out/conftest.exp out/conftest.er2 >/dev/null; then
+ _LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
+ fi
+ fi
+ chmod u+w . 2>&AS_MESSAGE_LOG_FD
+ $RM conftest*
+ # SGI C++ compiler will create directory out/ii_files/ for
+ # template instantiation
+ test -d out/ii_files && $RM out/ii_files/* && rmdir out/ii_files
+ $RM out/* && rmdir out
+ cd ..
+ $RM -r conftest
+ $RM conftest*
+])
+_LT_TAGDECL([compiler_c_o], [lt_cv_prog_compiler_c_o], [1],
+ [Does compiler simultaneously support -c and -o options?])
+])# _LT_COMPILER_C_O
+
+
+# _LT_COMPILER_FILE_LOCKS([TAGNAME])
+# ----------------------------------
+# Check to see if we can do hard links to lock some files if needed
+m4_defun([_LT_COMPILER_FILE_LOCKS],
+[m4_require([_LT_ENABLE_LOCK])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+_LT_COMPILER_C_O([$1])
+
+hard_links=nottested
+if test no = "$_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)" && test no != "$need_locks"; then
+ # do not overwrite the value of need_locks provided by the user
+ AC_MSG_CHECKING([if we can lock with hard links])
+ hard_links=yes
+ $RM conftest*
+ ln conftest.a conftest.b 2>/dev/null && hard_links=no
+ touch conftest.a
+ ln conftest.a conftest.b 2>&5 || hard_links=no
+ ln conftest.a conftest.b 2>/dev/null && hard_links=no
+ AC_MSG_RESULT([$hard_links])
+ if test no = "$hard_links"; then
+ AC_MSG_WARN(['$CC' does not support '-c -o', so 'make -j' may be unsafe])
+ need_locks=warn
+ fi
+else
+ need_locks=no
+fi
+_LT_DECL([], [need_locks], [1], [Must we lock files when doing compilation?])
+])# _LT_COMPILER_FILE_LOCKS
+
+
+# _LT_CHECK_OBJDIR
+# ----------------
+m4_defun([_LT_CHECK_OBJDIR],
+[AC_CACHE_CHECK([for objdir], [lt_cv_objdir],
+[rm -f .libs 2>/dev/null
+mkdir .libs 2>/dev/null
+if test -d .libs; then
+ lt_cv_objdir=.libs
+else
+ # MS-DOS does not allow filenames that begin with a dot.
+ lt_cv_objdir=_libs
+fi
+rmdir .libs 2>/dev/null])
+objdir=$lt_cv_objdir
+_LT_DECL([], [objdir], [0],
+ [The name of the directory that contains temporary libtool files])dnl
+m4_pattern_allow([LT_OBJDIR])dnl
+AC_DEFINE_UNQUOTED([LT_OBJDIR], "$lt_cv_objdir/",
+ [Define to the sub-directory where libtool stores uninstalled libraries.])
+])# _LT_CHECK_OBJDIR
+
+
+# _LT_LINKER_HARDCODE_LIBPATH([TAGNAME])
+# --------------------------------------
+# Check hardcoding attributes.
+m4_defun([_LT_LINKER_HARDCODE_LIBPATH],
+[AC_MSG_CHECKING([how to hardcode library paths into programs])
+_LT_TAGVAR(hardcode_action, $1)=
+if test -n "$_LT_TAGVAR(hardcode_libdir_flag_spec, $1)" ||
+ test -n "$_LT_TAGVAR(runpath_var, $1)" ||
+ test yes = "$_LT_TAGVAR(hardcode_automatic, $1)"; then
+
+ # We can hardcode non-existent directories.
+ if test no != "$_LT_TAGVAR(hardcode_direct, $1)" &&
+ # If the only mechanism to avoid hardcoding is shlibpath_var, we
+ # have to relink, otherwise we might link with an installed library
+ # when we should be linking with a yet-to-be-installed one
+ ## test no != "$_LT_TAGVAR(hardcode_shlibpath_var, $1)" &&
+ test no != "$_LT_TAGVAR(hardcode_minus_L, $1)"; then
+ # Linking always hardcodes the temporary library directory.
+ _LT_TAGVAR(hardcode_action, $1)=relink
+ else
+ # We can link without hardcoding, and we can hardcode nonexisting dirs.
+ _LT_TAGVAR(hardcode_action, $1)=immediate
+ fi
+else
+ # We cannot hardcode anything, or else we can only hardcode existing
+ # directories.
+ _LT_TAGVAR(hardcode_action, $1)=unsupported
+fi
+AC_MSG_RESULT([$_LT_TAGVAR(hardcode_action, $1)])
+
+if test relink = "$_LT_TAGVAR(hardcode_action, $1)" ||
+ test yes = "$_LT_TAGVAR(inherit_rpath, $1)"; then
+ # Fast installation is not supported
+ enable_fast_install=no
+elif test yes = "$shlibpath_overrides_runpath" ||
+ test no = "$enable_shared"; then
+ # Fast installation is not necessary
+ enable_fast_install=needless
+fi
+_LT_TAGDECL([], [hardcode_action], [0],
+ [How to hardcode a shared library path into an executable])
+])# _LT_LINKER_HARDCODE_LIBPATH
+
+
+# _LT_CMD_STRIPLIB
+# ----------------
+m4_defun([_LT_CMD_STRIPLIB],
+[m4_require([_LT_DECL_EGREP])
+striplib=
+old_striplib=
+AC_MSG_CHECKING([whether stripping libraries is possible])
+if test -n "$STRIP" && $STRIP -V 2>&1 | $GREP "GNU strip" >/dev/null; then
+ test -z "$old_striplib" && old_striplib="$STRIP --strip-debug"
+ test -z "$striplib" && striplib="$STRIP --strip-unneeded"
+ AC_MSG_RESULT([yes])
+else
+# FIXME - insert some real tests, host_os isn't really good enough
+ case $host_os in
+ darwin*)
+ if test -n "$STRIP"; then
+ striplib="$STRIP -x"
+ old_striplib="$STRIP -S"
+ AC_MSG_RESULT([yes])
+ else
+ AC_MSG_RESULT([no])
+ fi
+ ;;
+ *)
+ AC_MSG_RESULT([no])
+ ;;
+ esac
+fi
+_LT_DECL([], [old_striplib], [1], [Commands to strip libraries])
+_LT_DECL([], [striplib], [1])
+])# _LT_CMD_STRIPLIB
+
+
+# _LT_PREPARE_MUNGE_PATH_LIST
+# ---------------------------
+# Make sure func_munge_path_list() is defined correctly.
+m4_defun([_LT_PREPARE_MUNGE_PATH_LIST],
+[[# func_munge_path_list VARIABLE PATH
+# -----------------------------------
+# VARIABLE is name of variable containing _space_ separated list of
+# directories to be munged by the contents of PATH, which is string
+# having a format:
+# "DIR[:DIR]:"
+# string "DIR[ DIR]" will be prepended to VARIABLE
+# ":DIR[:DIR]"
+# string "DIR[ DIR]" will be appended to VARIABLE
+# "DIRP[:DIRP]::[DIRA:]DIRA"
+# string "DIRP[ DIRP]" will be prepended to VARIABLE and string
+# "DIRA[ DIRA]" will be appended to VARIABLE
+# "DIR[:DIR]"
+# VARIABLE will be replaced by "DIR[ DIR]"
+func_munge_path_list ()
+{
+ case x@S|@2 in
+ x)
+ ;;
+ *:)
+ eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'` \@S|@@S|@1\"
+ ;;
+ x:*)
+ eval @S|@1=\"\@S|@@S|@1 `$ECHO @S|@2 | $SED 's/:/ /g'`\"
+ ;;
+ *::*)
+ eval @S|@1=\"\@S|@@S|@1\ `$ECHO @S|@2 | $SED -e 's/.*:://' -e 's/:/ /g'`\"
+ eval @S|@1=\"`$ECHO @S|@2 | $SED -e 's/::.*//' -e 's/:/ /g'`\ \@S|@@S|@1\"
+ ;;
+ *)
+ eval @S|@1=\"`$ECHO @S|@2 | $SED 's/:/ /g'`\"
+ ;;
+ esac
+}
+]])# _LT_PREPARE_PATH_LIST
+
+
+# _LT_SYS_DYNAMIC_LINKER([TAG])
+# -----------------------------
+# PORTME Fill in your ld.so characteristics
+m4_defun([_LT_SYS_DYNAMIC_LINKER],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_OBJDUMP])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_CHECK_SHELL_FEATURES])dnl
+m4_require([_LT_PREPARE_MUNGE_PATH_LIST])dnl
+AC_MSG_CHECKING([dynamic linker characteristics])
+m4_if([$1],
+ [], [
+if test yes = "$GCC"; then
+ case $host_os in
+ darwin*) lt_awk_arg='/^libraries:/,/LR/' ;;
+ *) lt_awk_arg='/^libraries:/' ;;
+ esac
+ case $host_os in
+ mingw* | cegcc*) lt_sed_strip_eq='s|=\([[A-Za-z]]:\)|\1|g' ;;
+ *) lt_sed_strip_eq='s|=/|/|g' ;;
+ esac
+ lt_search_path_spec=`$CC -print-search-dirs | awk $lt_awk_arg | $SED -e "s/^libraries://" -e $lt_sed_strip_eq`
+ case $lt_search_path_spec in
+ *\;*)
+ # if the path contains ";" then we assume it to be the separator
+ # otherwise default to the standard path separator (i.e. ":") - it is
+ # assumed that no part of a normal pathname contains ";" but that should
+ # okay in the real world where ";" in dirpaths is itself problematic.
+ lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED 's/;/ /g'`
+ ;;
+ *)
+ lt_search_path_spec=`$ECHO "$lt_search_path_spec" | $SED "s/$PATH_SEPARATOR/ /g"`
+ ;;
+ esac
+ # Ok, now we have the path, separated by spaces, we can step through it
+ # and add multilib dir if necessary...
+ lt_tmp_lt_search_path_spec=
+ lt_multi_os_dir=/`$CC $CPPFLAGS $CFLAGS $LDFLAGS -print-multi-os-directory 2>/dev/null`
+ # ...but if some path component already ends with the multilib dir we assume
+ # that all is fine and trust -print-search-dirs as is (GCC 4.2? or newer).
+ case "$lt_multi_os_dir; $lt_search_path_spec " in
+ "/; "* | "/.; "* | "/./; "* | *"$lt_multi_os_dir "* | *"$lt_multi_os_dir/ "*)
+ lt_multi_os_dir=
+ ;;
+ esac
+ for lt_sys_path in $lt_search_path_spec; do
+ if test -d "$lt_sys_path$lt_multi_os_dir"; then
+ lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path$lt_multi_os_dir"
+ elif test -n "$lt_multi_os_dir"; then
+ test -d "$lt_sys_path" && \
+ lt_tmp_lt_search_path_spec="$lt_tmp_lt_search_path_spec $lt_sys_path"
+ fi
+ done
+ lt_search_path_spec=`$ECHO "$lt_tmp_lt_search_path_spec" | awk '
+BEGIN {RS = " "; FS = "/|\n";} {
+ lt_foo = "";
+ lt_count = 0;
+ for (lt_i = NF; lt_i > 0; lt_i--) {
+ if ($lt_i != "" && $lt_i != ".") {
+ if ($lt_i == "..") {
+ lt_count++;
+ } else {
+ if (lt_count == 0) {
+ lt_foo = "/" $lt_i lt_foo;
+ } else {
+ lt_count--;
+ }
+ }
+ }
+ }
+ if (lt_foo != "") { lt_freq[[lt_foo]]++; }
+ if (lt_freq[[lt_foo]] == 1) { print lt_foo; }
+}'`
+ # AWK program above erroneously prepends '/' to C:/dos/paths
+ # for these hosts.
+ case $host_os in
+ mingw* | cegcc*) lt_search_path_spec=`$ECHO "$lt_search_path_spec" |\
+ $SED 's|/\([[A-Za-z]]:\)|\1|g'` ;;
+ esac
+ sys_lib_search_path_spec=`$ECHO "$lt_search_path_spec" | $lt_NL2SP`
+else
+ sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+fi])
+library_names_spec=
+libname_spec='lib$name'
+soname_spec=
+shrext_cmds=.so
+postinstall_cmds=
+postuninstall_cmds=
+finish_cmds=
+finish_eval=
+shlibpath_var=
+shlibpath_overrides_runpath=unknown
+version_type=none
+dynamic_linker="$host_os ld.so"
+sys_lib_dlsearch_path_spec="/lib /usr/lib"
+need_lib_prefix=unknown
+hardcode_into_libs=no
+
+# when you set need_version to no, make sure it does not cause -set_version
+# flags to be left without arguments
+need_version=unknown
+
+AC_ARG_VAR([LT_SYS_LIBRARY_PATH],
+[User-defined run-time library search path.])
+
+case $host_os in
+aix3*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ library_names_spec='$libname$release$shared_ext$versuffix $libname.a'
+ shlibpath_var=LIBPATH
+
+ # AIX 3 has no versioning support, so we append a major version to the name.
+ soname_spec='$libname$release$shared_ext$major'
+ ;;
+
+aix[[4-9]]*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ hardcode_into_libs=yes
+ if test ia64 = "$host_cpu"; then
+ # AIX 5 supports IA64
+ library_names_spec='$libname$release$shared_ext$major $libname$release$shared_ext$versuffix $libname$shared_ext'
+ shlibpath_var=LD_LIBRARY_PATH
+ else
+ # With GCC up to 2.95.x, collect2 would create an import file
+ # for dependence libraries. The import file would start with
+ # the line '#! .'. This would cause the generated library to
+ # depend on '.', always an invalid library. This was fixed in
+ # development snapshots of GCC prior to 3.0.
+ case $host_os in
+ aix4 | aix4.[[01]] | aix4.[[01]].*)
+ if { echo '#if __GNUC__ > 2 || (__GNUC__ == 2 && __GNUC_MINOR__ >= 97)'
+ echo ' yes '
+ echo '#endif'; } | $CC -E - | $GREP yes > /dev/null; then
+ :
+ else
+ can_build_shared=no
+ fi
+ ;;
+ esac
+ # Using Import Files as archive members, it is possible to support
+ # filename-based versioning of shared library archives on AIX. While
+ # this would work for both with and without runtime linking, it will
+ # prevent static linking of such archives. So we do filename-based
+ # shared library versioning with .so extension only, which is used
+ # when both runtime linking and shared linking is enabled.
+ # Unfortunately, runtime linking may impact performance, so we do
+ # not want this to be the default eventually. Also, we use the
+ # versioned .so libs for executables only if there is the -brtl
+ # linker flag in LDFLAGS as well, or --with-aix-soname=svr4 only.
+ # To allow for filename-based versioning support, we need to create
+ # libNAME.so.V as an archive file, containing:
+ # *) an Import File, referring to the versioned filename of the
+ # archive as well as the shared archive member, telling the
+ # bitwidth (32 or 64) of that shared object, and providing the
+ # list of exported symbols of that shared object, eventually
+ # decorated with the 'weak' keyword
+ # *) the shared object with the F_LOADONLY flag set, to really avoid
+ # it being seen by the linker.
+ # At run time we better use the real file rather than another symlink,
+ # but for link time we create the symlink libNAME.so -> libNAME.so.V
+
+ case $with_aix_soname,$aix_use_runtimelinking in
+ # AIX (on Power*) has no versioning support, so currently we cannot hardcode correct
+ # soname into executable. Probably we can add versioning support to
+ # collect2, so additional links can be useful in future.
+ aix,yes) # traditional libtool
+ dynamic_linker='AIX unversionable lib.so'
+ # If using run time linking (on AIX 4.2 or later) use lib<name>.so
+ # instead of lib<name>.a to let people know that these are not
+ # typical AIX shared libraries.
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ ;;
+ aix,no) # traditional AIX only
+ dynamic_linker='AIX lib.a[(]lib.so.V[)]'
+ # We preserve .a as extension for shared libraries through AIX4.2
+ # and later when we are not doing run time linking.
+ library_names_spec='$libname$release.a $libname.a'
+ soname_spec='$libname$release$shared_ext$major'
+ ;;
+ svr4,*) # full svr4 only
+ dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)]"
+ library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+ # We do not specify a path in Import Files, so LIBPATH fires.
+ shlibpath_overrides_runpath=yes
+ ;;
+ *,yes) # both, prefer svr4
+ dynamic_linker="AIX lib.so.V[(]$shared_archive_member_spec.o[)], lib.a[(]lib.so.V[)]"
+ library_names_spec='$libname$release$shared_ext$major $libname$shared_ext'
+ # unpreferred sharedlib libNAME.a needs extra handling
+ postinstall_cmds='test -n "$linkname" || linkname="$realname"~func_stripname "" ".so" "$linkname"~$install_shared_prog "$dir/$func_stripname_result.$libext" "$destdir/$func_stripname_result.$libext"~test -z "$tstripme" || test -z "$striplib" || $striplib "$destdir/$func_stripname_result.$libext"'
+ postuninstall_cmds='for n in $library_names $old_library; do :; done~func_stripname "" ".so" "$n"~test "$func_stripname_result" = "$n" || func_append rmfiles " $odir/$func_stripname_result.$libext"'
+ # We do not specify a path in Import Files, so LIBPATH fires.
+ shlibpath_overrides_runpath=yes
+ ;;
+ *,no) # both, prefer aix
+ dynamic_linker="AIX lib.a[(]lib.so.V[)], lib.so.V[(]$shared_archive_member_spec.o[)]"
+ library_names_spec='$libname$release.a $libname.a'
+ soname_spec='$libname$release$shared_ext$major'
+ # unpreferred sharedlib libNAME.so.V and symlink libNAME.so need extra handling
+ postinstall_cmds='test -z "$dlname" || $install_shared_prog $dir/$dlname $destdir/$dlname~test -z "$tstripme" || test -z "$striplib" || $striplib $destdir/$dlname~test -n "$linkname" || linkname=$realname~func_stripname "" ".a" "$linkname"~(cd "$destdir" && $LN_S -f $dlname $func_stripname_result.so)'
+ postuninstall_cmds='test -z "$dlname" || func_append rmfiles " $odir/$dlname"~for n in $old_library $library_names; do :; done~func_stripname "" ".a" "$n"~func_append rmfiles " $odir/$func_stripname_result.so"'
+ ;;
+ esac
+ shlibpath_var=LIBPATH
+ fi
+ ;;
+
+amigaos*)
+ case $host_cpu in
+ powerpc)
+ # Since July 2007 AmigaOS4 officially supports .so libraries.
+ # When compiling the executable, add -use-dynld -Lsobjs: to the compileline.
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ ;;
+ m68k)
+ library_names_spec='$libname.ixlibrary $libname.a'
+ # Create ${libname}_ixlibrary.a entries in /sys/libs.
+ finish_eval='for lib in `ls $libdir/*.ixlibrary 2>/dev/null`; do libname=`func_echo_all "$lib" | $SED '\''s%^.*/\([[^/]]*\)\.ixlibrary$%\1%'\''`; $RM /sys/libs/${libname}_ixlibrary.a; $show "cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a"; cd /sys/libs && $LN_S $lib ${libname}_ixlibrary.a || exit 1; done'
+ ;;
+ esac
+ ;;
+
+beos*)
+ library_names_spec='$libname$shared_ext'
+ dynamic_linker="$host_os ld.so"
+ shlibpath_var=LIBRARY_PATH
+ ;;
+
+bsdi[[45]]*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ finish_cmds='PATH="\$PATH:/sbin" ldconfig $libdir'
+ shlibpath_var=LD_LIBRARY_PATH
+ sys_lib_search_path_spec="/shlib /usr/lib /usr/X11/lib /usr/contrib/lib /lib /usr/local/lib"
+ sys_lib_dlsearch_path_spec="/shlib /usr/lib /usr/local/lib"
+ # the default ld.so.conf also contains /usr/contrib/lib and
+ # /usr/X11R6/lib (/usr/X11 is a link to /usr/X11R6), but let us allow
+ # libtool to hard-code these into programs
+ ;;
+
+cygwin* | mingw* | pw32* | cegcc*)
+ version_type=windows
+ shrext_cmds=.dll
+ need_version=no
+ need_lib_prefix=no
+
+ case $GCC,$cc_basename in
+ yes,*)
+ # gcc
+ library_names_spec='$libname.dll.a'
+ # DLL is installed to $(libdir)/../bin by postinstall_cmds
+ postinstall_cmds='base_file=`basename \$file`~
+ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+ dldir=$destdir/`dirname \$dlpath`~
+ test -d \$dldir || mkdir -p \$dldir~
+ $install_prog $dir/$dlname \$dldir/$dlname~
+ chmod a+x \$dldir/$dlname~
+ if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+ eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+ fi'
+ postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+ dlpath=$dir/\$dldll~
+ $RM \$dlpath'
+ shlibpath_overrides_runpath=yes
+
+ case $host_os in
+ cygwin*)
+ # Cygwin DLLs use 'cyg' prefix rather than 'lib'
+ soname_spec='`echo $libname | sed -e 's/^lib/cyg/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
+m4_if([$1], [],[
+ sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/lib/w32api"])
+ ;;
+ mingw* | cegcc*)
+ # MinGW DLLs use traditional 'lib' prefix
+ soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
+ ;;
+ pw32*)
+ # pw32 DLLs use 'pw' prefix rather than 'lib'
+ library_names_spec='`echo $libname | sed -e 's/^lib/pw/'``echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
+ ;;
+ esac
+ dynamic_linker='Win32 ld.exe'
+ ;;
+
+ *,cl*)
+ # Native MSVC
+ libname_spec='$name'
+ soname_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext'
+ library_names_spec='$libname.dll.lib'
+
+ case $build_os in
+ mingw*)
+ sys_lib_search_path_spec=
+ lt_save_ifs=$IFS
+ IFS=';'
+ for lt_path in $LIB
+ do
+ IFS=$lt_save_ifs
+ # Let DOS variable expansion print the short 8.3 style file name.
+ lt_path=`cd "$lt_path" 2>/dev/null && cmd //C "for %i in (".") do @echo %~si"`
+ sys_lib_search_path_spec="$sys_lib_search_path_spec $lt_path"
+ done
+ IFS=$lt_save_ifs
+ # Convert to MSYS style.
+ sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | sed -e 's|\\\\|/|g' -e 's| \\([[a-zA-Z]]\\):| /\\1|g' -e 's|^ ||'`
+ ;;
+ cygwin*)
+ # Convert to unix form, then to dos form, then back to unix form
+ # but this time dos style (no spaces!) so that the unix form looks
+ # like /cygdrive/c/PROGRA~1:/cygdr...
+ sys_lib_search_path_spec=`cygpath --path --unix "$LIB"`
+ sys_lib_search_path_spec=`cygpath --path --dos "$sys_lib_search_path_spec" 2>/dev/null`
+ sys_lib_search_path_spec=`cygpath --path --unix "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+ ;;
+ *)
+ sys_lib_search_path_spec=$LIB
+ if $ECHO "$sys_lib_search_path_spec" | [$GREP ';[c-zC-Z]:/' >/dev/null]; then
+ # It is most probably a Windows format PATH.
+ sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e 's/;/ /g'`
+ else
+ sys_lib_search_path_spec=`$ECHO "$sys_lib_search_path_spec" | $SED -e "s/$PATH_SEPARATOR/ /g"`
+ fi
+ # FIXME: find the short name or the path components, as spaces are
+ # common. (e.g. "Program Files" -> "PROGRA~1")
+ ;;
+ esac
+
+ # DLL is installed to $(libdir)/../bin by postinstall_cmds
+ postinstall_cmds='base_file=`basename \$file`~
+ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; echo \$dlname'\''`~
+ dldir=$destdir/`dirname \$dlpath`~
+ test -d \$dldir || mkdir -p \$dldir~
+ $install_prog $dir/$dlname \$dldir/$dlname'
+ postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; echo \$dlname'\''`~
+ dlpath=$dir/\$dldll~
+ $RM \$dlpath'
+ shlibpath_overrides_runpath=yes
+ dynamic_linker='Win32 link.exe'
+ ;;
+
+ *)
+ # Assume MSVC wrapper
+ library_names_spec='$libname`echo $release | $SED -e 's/[[.]]/-/g'`$versuffix$shared_ext $libname.lib'
+ dynamic_linker='Win32 ld.exe'
+ ;;
+ esac
+ # FIXME: first we should search . and the directory the executable is in
+ shlibpath_var=PATH
+ ;;
+
+darwin* | rhapsody*)
+ dynamic_linker="$host_os dyld"
+ version_type=darwin
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$major$shared_ext $libname$shared_ext'
+ soname_spec='$libname$release$major$shared_ext'
+ shlibpath_overrides_runpath=yes
+ shlibpath_var=DYLD_LIBRARY_PATH
+ shrext_cmds='`test .$module = .yes && echo .so || echo .dylib`'
+m4_if([$1], [],[
+ sys_lib_search_path_spec="$sys_lib_search_path_spec /usr/local/lib"])
+ sys_lib_dlsearch_path_spec='/usr/local/lib /lib /usr/lib'
+ ;;
+
+dgux*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ ;;
+
+freebsd* | dragonfly*)
+ # DragonFly does not have aout. When/if they implement a new
+ # versioning mechanism, adjust this.
+ if test -x /usr/bin/objformat; then
+ objformat=`/usr/bin/objformat`
+ else
+ case $host_os in
+ freebsd[[23]].*) objformat=aout ;;
+ *) objformat=elf ;;
+ esac
+ fi
+ version_type=freebsd-$objformat
+ case $version_type in
+ freebsd-elf*)
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ need_version=no
+ need_lib_prefix=no
+ ;;
+ freebsd-*)
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+ need_version=yes
+ ;;
+ esac
+ shlibpath_var=LD_LIBRARY_PATH
+ case $host_os in
+ freebsd2.*)
+ shlibpath_overrides_runpath=yes
+ ;;
+ freebsd3.[[01]]* | freebsdelf3.[[01]]*)
+ shlibpath_overrides_runpath=yes
+ hardcode_into_libs=yes
+ ;;
+ freebsd3.[[2-9]]* | freebsdelf3.[[2-9]]* | \
+ freebsd4.[[0-5]] | freebsdelf4.[[0-5]] | freebsd4.1.1 | freebsdelf4.1.1)
+ shlibpath_overrides_runpath=no
+ hardcode_into_libs=yes
+ ;;
+ *) # from 4.6 on, and DragonFly
+ shlibpath_overrides_runpath=yes
+ hardcode_into_libs=yes
+ ;;
+ esac
+ ;;
+
+haiku*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ dynamic_linker="$host_os runtime_loader"
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LIBRARY_PATH
+ shlibpath_overrides_runpath=no
+ sys_lib_dlsearch_path_spec='/boot/home/config/lib /boot/common/lib /boot/system/lib'
+ hardcode_into_libs=yes
+ ;;
+
+hpux9* | hpux10* | hpux11*)
+ # Give a soname corresponding to the major version so that dld.sl refuses to
+ # link against other versions.
+ version_type=sunos
+ need_lib_prefix=no
+ need_version=no
+ case $host_cpu in
+ ia64*)
+ shrext_cmds='.so'
+ hardcode_into_libs=yes
+ dynamic_linker="$host_os dld.so"
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ if test 32 = "$HPUX_IA64_MODE"; then
+ sys_lib_search_path_spec="/usr/lib/hpux32 /usr/local/lib/hpux32 /usr/local/lib"
+ sys_lib_dlsearch_path_spec=/usr/lib/hpux32
+ else
+ sys_lib_search_path_spec="/usr/lib/hpux64 /usr/local/lib/hpux64"
+ sys_lib_dlsearch_path_spec=/usr/lib/hpux64
+ fi
+ ;;
+ hppa*64*)
+ shrext_cmds='.sl'
+ hardcode_into_libs=yes
+ dynamic_linker="$host_os dld.sl"
+ shlibpath_var=LD_LIBRARY_PATH # How should we handle SHLIB_PATH
+ shlibpath_overrides_runpath=yes # Unless +noenvvar is specified.
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ sys_lib_search_path_spec="/usr/lib/pa20_64 /usr/ccs/lib/pa20_64"
+ sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+ ;;
+ *)
+ shrext_cmds='.sl'
+ dynamic_linker="$host_os dld.sl"
+ shlibpath_var=SHLIB_PATH
+ shlibpath_overrides_runpath=no # +s is required to enable SHLIB_PATH
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ ;;
+ esac
+ # HP-UX runs *really* slowly unless shared libraries are mode 555, ...
+ postinstall_cmds='chmod 555 $lib'
+ # or fails outright, so override atomically:
+ install_override_mode=555
+ ;;
+
+interix[[3-9]]*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ dynamic_linker='Interix 3.x ld.so.1 (PE, like ELF)'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=no
+ hardcode_into_libs=yes
+ ;;
+
+irix5* | irix6* | nonstopux*)
+ case $host_os in
+ nonstopux*) version_type=nonstopux ;;
+ *)
+ if test yes = "$lt_cv_prog_gnu_ld"; then
+ version_type=linux # correct to gnu/linux during the next big refactor
+ else
+ version_type=irix
+ fi ;;
+ esac
+ need_lib_prefix=no
+ need_version=no
+ soname_spec='$libname$release$shared_ext$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$release$shared_ext $libname$shared_ext'
+ case $host_os in
+ irix5* | nonstopux*)
+ libsuff= shlibsuff=
+ ;;
+ *)
+ case $LD in # libtool.m4 will add one of these switches to LD
+ *-32|*"-32 "|*-melf32bsmip|*"-melf32bsmip ")
+ libsuff= shlibsuff= libmagic=32-bit;;
+ *-n32|*"-n32 "|*-melf32bmipn32|*"-melf32bmipn32 ")
+ libsuff=32 shlibsuff=N32 libmagic=N32;;
+ *-64|*"-64 "|*-melf64bmip|*"-melf64bmip ")
+ libsuff=64 shlibsuff=64 libmagic=64-bit;;
+ *) libsuff= shlibsuff= libmagic=never-match;;
+ esac
+ ;;
+ esac
+ shlibpath_var=LD_LIBRARY${shlibsuff}_PATH
+ shlibpath_overrides_runpath=no
+ sys_lib_search_path_spec="/usr/lib$libsuff /lib$libsuff /usr/local/lib$libsuff"
+ sys_lib_dlsearch_path_spec="/usr/lib$libsuff /lib$libsuff"
+ hardcode_into_libs=yes
+ ;;
+
+# No shared lib support for Linux oldld, aout, or coff.
+linux*oldld* | linux*aout* | linux*coff*)
+ dynamic_linker=no
+ ;;
+
+linux*android*)
+ version_type=none # Android doesn't support versioned libraries.
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext'
+ soname_spec='$libname$release$shared_ext'
+ finish_cmds=
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+
+ # This implies no fast_install, which is unacceptable.
+ # Some rework will be needed to allow for fast_install
+ # before this can be enabled.
+ hardcode_into_libs=yes
+
+ dynamic_linker='Android linker'
+ # Don't embed -rpath directories since the linker doesn't support them.
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+ ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ finish_cmds='PATH="\$PATH:/sbin" ldconfig -n $libdir'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=no
+
+ # Some binutils ld are patched to set DT_RUNPATH
+ AC_CACHE_VAL([lt_cv_shlibpath_overrides_runpath],
+ [lt_cv_shlibpath_overrides_runpath=no
+ save_LDFLAGS=$LDFLAGS
+ save_libdir=$libdir
+ eval "libdir=/foo; wl=\"$_LT_TAGVAR(lt_prog_compiler_wl, $1)\"; \
+ LDFLAGS=\"\$LDFLAGS $_LT_TAGVAR(hardcode_libdir_flag_spec, $1)\""
+ AC_LINK_IFELSE([AC_LANG_PROGRAM([],[])],
+ [AS_IF([ ($OBJDUMP -p conftest$ac_exeext) 2>/dev/null | grep "RUNPATH.*$libdir" >/dev/null],
+ [lt_cv_shlibpath_overrides_runpath=yes])])
+ LDFLAGS=$save_LDFLAGS
+ libdir=$save_libdir
+ ])
+ shlibpath_overrides_runpath=$lt_cv_shlibpath_overrides_runpath
+
+ # This implies no fast_install, which is unacceptable.
+ # Some rework will be needed to allow for fast_install
+ # before this can be enabled.
+ hardcode_into_libs=yes
+
+ # Add ABI-specific directories to the system library path.
+ sys_lib_dlsearch_path_spec="/lib64 /usr/lib64 /lib /usr/lib"
+
+ # Ideally, we could use ldconfig to report *all* directores which are
+ # searched for libraries, however this is still not possible. Aside from not
+ # being certain /sbin/ldconfig is available, command
+ # 'ldconfig -N -X -v | grep ^/' on 64bit Fedora does not report /usr/lib64,
+ # even though it is searched at run-time. Try to do the best guess by
+ # appending ld.so.conf contents (and includes) to the search path.
+ if test -f /etc/ld.so.conf; then
+ lt_ld_extra=`awk '/^include / { system(sprintf("cd /etc; cat %s 2>/dev/null", \[$]2)); skip = 1; } { if (!skip) print \[$]0; skip = 0; }' < /etc/ld.so.conf | $SED -e 's/#.*//;/^[ ]*hwcap[ ]/d;s/[:, ]/ /g;s/=[^=]*$//;s/=[^= ]* / /g;s/"//g;/^$/d' | tr '\n' ' '`
+ sys_lib_dlsearch_path_spec="$sys_lib_dlsearch_path_spec $lt_ld_extra"
+ fi
+
+ # We used to test for /lib/ld.so.1 and disable shared libraries on
+ # powerpc, because MkLinux only supported shared libraries with the
+ # GNU dynamic linker. Since this was broken with cross compilers,
+ # most powerpc-linux boxes support dynamic linking these days and
+ # people can always --disable-shared, the test was removed, and we
+ # assume the GNU/Linux dynamic linker is in use.
+ dynamic_linker='GNU/Linux ld.so'
+ ;;
+
+netbsd*)
+ version_type=sunos
+ need_lib_prefix=no
+ need_version=no
+ if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+ finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+ dynamic_linker='NetBSD (a.out) ld.so'
+ else
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ dynamic_linker='NetBSD ld.elf_so'
+ fi
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ hardcode_into_libs=yes
+ ;;
+
+newsos6)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ ;;
+
+*nto* | *qnx*)
+ version_type=qnx
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=no
+ hardcode_into_libs=yes
+ dynamic_linker='ldqnx.so'
+ ;;
+
+openbsd* | bitrig*)
+ version_type=sunos
+ sys_lib_dlsearch_path_spec=/usr/lib
+ need_lib_prefix=no
+ if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+ need_version=no
+ else
+ need_version=yes
+ fi
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+ finish_cmds='PATH="\$PATH:/sbin" ldconfig -m $libdir'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ ;;
+
+os2*)
+ libname_spec='$name'
+ version_type=windows
+ shrext_cmds=.dll
+ need_version=no
+ need_lib_prefix=no
+ # OS/2 can only load a DLL with a base name of 8 characters or less.
+ soname_spec='`test -n "$os2dllname" && libname="$os2dllname";
+ v=$($ECHO $release$versuffix | tr -d .-);
+ n=$($ECHO $libname | cut -b -$((8 - ${#v})) | tr . _);
+ $ECHO $n$v`$shared_ext'
+ library_names_spec='${libname}_dll.$libext'
+ dynamic_linker='OS/2 ld.exe'
+ shlibpath_var=BEGINLIBPATH
+ sys_lib_search_path_spec="/lib /usr/lib /usr/local/lib"
+ sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+ postinstall_cmds='base_file=`basename \$file`~
+ dlpath=`$SHELL 2>&1 -c '\''. $dir/'\''\$base_file'\''i; $ECHO \$dlname'\''`~
+ dldir=$destdir/`dirname \$dlpath`~
+ test -d \$dldir || mkdir -p \$dldir~
+ $install_prog $dir/$dlname \$dldir/$dlname~
+ chmod a+x \$dldir/$dlname~
+ if test -n '\''$stripme'\'' && test -n '\''$striplib'\''; then
+ eval '\''$striplib \$dldir/$dlname'\'' || exit \$?;
+ fi'
+ postuninstall_cmds='dldll=`$SHELL 2>&1 -c '\''. $file; $ECHO \$dlname'\''`~
+ dlpath=$dir/\$dldll~
+ $RM \$dlpath'
+ ;;
+
+osf3* | osf4* | osf5*)
+ version_type=osf
+ need_lib_prefix=no
+ need_version=no
+ soname_spec='$libname$release$shared_ext$major'
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ shlibpath_var=LD_LIBRARY_PATH
+ sys_lib_search_path_spec="/usr/shlib /usr/ccs/lib /usr/lib/cmplrs/cc /usr/lib /usr/local/lib /var/shlib"
+ sys_lib_dlsearch_path_spec=$sys_lib_search_path_spec
+ ;;
+
+rdos*)
+ dynamic_linker=no
+ ;;
+
+solaris*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ hardcode_into_libs=yes
+ # ldd complains unless libraries are executable
+ postinstall_cmds='chmod +x $lib'
+ ;;
+
+sunos4*)
+ version_type=sunos
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$shared_ext$versuffix'
+ finish_cmds='PATH="\$PATH:/usr/etc" ldconfig $libdir'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ if test yes = "$with_gnu_ld"; then
+ need_lib_prefix=no
+ fi
+ need_version=yes
+ ;;
+
+sysv4 | sysv4.3*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ case $host_vendor in
+ sni)
+ shlibpath_overrides_runpath=no
+ need_lib_prefix=no
+ runpath_var=LD_RUN_PATH
+ ;;
+ siemens)
+ need_lib_prefix=no
+ ;;
+ motorola)
+ need_lib_prefix=no
+ need_version=no
+ shlibpath_overrides_runpath=no
+ sys_lib_search_path_spec='/lib /usr/lib /usr/ccs/lib'
+ ;;
+ esac
+ ;;
+
+sysv4*MP*)
+ if test -d /usr/nec; then
+ version_type=linux # correct to gnu/linux during the next big refactor
+ library_names_spec='$libname$shared_ext.$versuffix $libname$shared_ext.$major $libname$shared_ext'
+ soname_spec='$libname$shared_ext.$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ fi
+ ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+ version_type=sco
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=yes
+ hardcode_into_libs=yes
+ if test yes = "$with_gnu_ld"; then
+ sys_lib_search_path_spec='/usr/local/lib /usr/gnu/lib /usr/ccs/lib /usr/lib /lib'
+ else
+ sys_lib_search_path_spec='/usr/ccs/lib /usr/lib'
+ case $host_os in
+ sco3.2v5*)
+ sys_lib_search_path_spec="$sys_lib_search_path_spec /lib"
+ ;;
+ esac
+ fi
+ sys_lib_dlsearch_path_spec='/usr/lib'
+ ;;
+
+tpf*)
+ # TPF is a cross-target only. Preferred cross-host = GNU/Linux.
+ version_type=linux # correct to gnu/linux during the next big refactor
+ need_lib_prefix=no
+ need_version=no
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ shlibpath_var=LD_LIBRARY_PATH
+ shlibpath_overrides_runpath=no
+ hardcode_into_libs=yes
+ ;;
+
+uts4*)
+ version_type=linux # correct to gnu/linux during the next big refactor
+ library_names_spec='$libname$release$shared_ext$versuffix $libname$release$shared_ext$major $libname$shared_ext'
+ soname_spec='$libname$release$shared_ext$major'
+ shlibpath_var=LD_LIBRARY_PATH
+ ;;
+
+*)
+ dynamic_linker=no
+ ;;
+esac
+AC_MSG_RESULT([$dynamic_linker])
+test no = "$dynamic_linker" && can_build_shared=no
+
+variables_saved_for_relink="PATH $shlibpath_var $runpath_var"
+if test yes = "$GCC"; then
+ variables_saved_for_relink="$variables_saved_for_relink GCC_EXEC_PREFIX COMPILER_PATH LIBRARY_PATH"
+fi
+
+if test set = "${lt_cv_sys_lib_search_path_spec+set}"; then
+ sys_lib_search_path_spec=$lt_cv_sys_lib_search_path_spec
+fi
+
+if test set = "${lt_cv_sys_lib_dlsearch_path_spec+set}"; then
+ sys_lib_dlsearch_path_spec=$lt_cv_sys_lib_dlsearch_path_spec
+fi
+
+# remember unaugmented sys_lib_dlsearch_path content for libtool script decls...
+configure_time_dlsearch_path=$sys_lib_dlsearch_path_spec
+
+# ... but it needs LT_SYS_LIBRARY_PATH munging for other configure-time code
+func_munge_path_list sys_lib_dlsearch_path_spec "$LT_SYS_LIBRARY_PATH"
+
+# to be used as default LT_SYS_LIBRARY_PATH value in generated libtool
+configure_time_lt_sys_library_path=$LT_SYS_LIBRARY_PATH
+
+_LT_DECL([], [variables_saved_for_relink], [1],
+ [Variables whose values should be saved in libtool wrapper scripts and
+ restored at link time])
+_LT_DECL([], [need_lib_prefix], [0],
+ [Do we need the "lib" prefix for modules?])
+_LT_DECL([], [need_version], [0], [Do we need a version for libraries?])
+_LT_DECL([], [version_type], [0], [Library versioning type])
+_LT_DECL([], [runpath_var], [0], [Shared library runtime path variable])
+_LT_DECL([], [shlibpath_var], [0],[Shared library path variable])
+_LT_DECL([], [shlibpath_overrides_runpath], [0],
+ [Is shlibpath searched before the hard-coded library search path?])
+_LT_DECL([], [libname_spec], [1], [Format of library name prefix])
+_LT_DECL([], [library_names_spec], [1],
+ [[List of archive names. First name is the real one, the rest are links.
+ The last name is the one that the linker finds with -lNAME]])
+_LT_DECL([], [soname_spec], [1],
+ [[The coded name of the library, if different from the real name]])
+_LT_DECL([], [install_override_mode], [1],
+ [Permission mode override for installation of shared libraries])
+_LT_DECL([], [postinstall_cmds], [2],
+ [Command to use after installation of a shared archive])
+_LT_DECL([], [postuninstall_cmds], [2],
+ [Command to use after uninstallation of a shared archive])
+_LT_DECL([], [finish_cmds], [2],
+ [Commands used to finish a libtool library installation in a directory])
+_LT_DECL([], [finish_eval], [1],
+ [[As "finish_cmds", except a single script fragment to be evaled but
+ not shown]])
+_LT_DECL([], [hardcode_into_libs], [0],
+ [Whether we should hardcode library paths into libraries])
+_LT_DECL([], [sys_lib_search_path_spec], [2],
+ [Compile-time system search path for libraries])
+_LT_DECL([sys_lib_dlsearch_path_spec], [configure_time_dlsearch_path], [2],
+ [Detected run-time system search path for libraries])
+_LT_DECL([], [configure_time_lt_sys_library_path], [2],
+ [Explicit LT_SYS_LIBRARY_PATH set during ./configure time])
+])# _LT_SYS_DYNAMIC_LINKER
+
+
+# _LT_PATH_TOOL_PREFIX(TOOL)
+# --------------------------
+# find a file program that can recognize shared library
+AC_DEFUN([_LT_PATH_TOOL_PREFIX],
+[m4_require([_LT_DECL_EGREP])dnl
+AC_MSG_CHECKING([for $1])
+AC_CACHE_VAL(lt_cv_path_MAGIC_CMD,
+[case $MAGIC_CMD in
+[[\\/*] | ?:[\\/]*])
+ lt_cv_path_MAGIC_CMD=$MAGIC_CMD # Let the user override the test with a path.
+ ;;
+*)
+ lt_save_MAGIC_CMD=$MAGIC_CMD
+ lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+dnl $ac_dummy forces splitting on constant user-supplied paths.
+dnl POSIX.2 word splitting is done only on the output of word expansions,
+dnl not every word. This closes a longstanding sh security hole.
+ ac_dummy="m4_if([$2], , $PATH, [$2])"
+ for ac_dir in $ac_dummy; do
+ IFS=$lt_save_ifs
+ test -z "$ac_dir" && ac_dir=.
+ if test -f "$ac_dir/$1"; then
+ lt_cv_path_MAGIC_CMD=$ac_dir/"$1"
+ if test -n "$file_magic_test_file"; then
+ case $deplibs_check_method in
+ "file_magic "*)
+ file_magic_regex=`expr "$deplibs_check_method" : "file_magic \(.*\)"`
+ MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+ if eval $file_magic_cmd \$file_magic_test_file 2> /dev/null |
+ $EGREP "$file_magic_regex" > /dev/null; then
+ :
+ else
+ cat <<_LT_EOF 1>&2
+
+*** Warning: the command libtool uses to detect shared libraries,
+*** $file_magic_cmd, produces output that libtool cannot recognize.
+*** The result is that libtool may fail to recognize shared libraries
+*** as such. This will affect the creation of libtool libraries that
+*** depend on shared libraries, but programs linked with such libtool
+*** libraries will work regardless of this problem. Nevertheless, you
+*** may want to report the problem to your system manager and/or to
+*** bug-libtool@gnu.org
+
+_LT_EOF
+ fi ;;
+ esac
+ fi
+ break
+ fi
+ done
+ IFS=$lt_save_ifs
+ MAGIC_CMD=$lt_save_MAGIC_CMD
+ ;;
+esac])
+MAGIC_CMD=$lt_cv_path_MAGIC_CMD
+if test -n "$MAGIC_CMD"; then
+ AC_MSG_RESULT($MAGIC_CMD)
+else
+ AC_MSG_RESULT(no)
+fi
+_LT_DECL([], [MAGIC_CMD], [0],
+ [Used to examine libraries when file_magic_cmd begins with "file"])dnl
+])# _LT_PATH_TOOL_PREFIX
+
+# Old name:
+AU_ALIAS([AC_PATH_TOOL_PREFIX], [_LT_PATH_TOOL_PREFIX])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_PATH_TOOL_PREFIX], [])
+
+
+# _LT_PATH_MAGIC
+# --------------
+# find a file program that can recognize a shared library
+m4_defun([_LT_PATH_MAGIC],
+[_LT_PATH_TOOL_PREFIX(${ac_tool_prefix}file, /usr/bin$PATH_SEPARATOR$PATH)
+if test -z "$lt_cv_path_MAGIC_CMD"; then
+ if test -n "$ac_tool_prefix"; then
+ _LT_PATH_TOOL_PREFIX(file, /usr/bin$PATH_SEPARATOR$PATH)
+ else
+ MAGIC_CMD=:
+ fi
+fi
+])# _LT_PATH_MAGIC
+
+
+# LT_PATH_LD
+# ----------
+# find the pathname to the GNU or non-GNU linker
+AC_DEFUN([LT_PATH_LD],
+[AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_PROG_ECHO_BACKSLASH])dnl
+
+AC_ARG_WITH([gnu-ld],
+ [AS_HELP_STRING([--with-gnu-ld],
+ [assume the C compiler uses GNU ld @<:@default=no@:>@])],
+ [test no = "$withval" || with_gnu_ld=yes],
+ [with_gnu_ld=no])dnl
+
+ac_prog=ld
+if test yes = "$GCC"; then
+ # Check if gcc -print-prog-name=ld gives a path.
+ AC_MSG_CHECKING([for ld used by $CC])
+ case $host in
+ *-*-mingw*)
+ # gcc leaves a trailing carriage return, which upsets mingw
+ ac_prog=`($CC -print-prog-name=ld) 2>&5 | tr -d '\015'` ;;
+ *)
+ ac_prog=`($CC -print-prog-name=ld) 2>&5` ;;
+ esac
+ case $ac_prog in
+ # Accept absolute paths.
+ [[\\/]]* | ?:[[\\/]]*)
+ re_direlt='/[[^/]][[^/]]*/\.\./'
+ # Canonicalize the pathname of ld
+ ac_prog=`$ECHO "$ac_prog"| $SED 's%\\\\%/%g'`
+ while $ECHO "$ac_prog" | $GREP "$re_direlt" > /dev/null 2>&1; do
+ ac_prog=`$ECHO $ac_prog| $SED "s%$re_direlt%/%"`
+ done
+ test -z "$LD" && LD=$ac_prog
+ ;;
+ "")
+ # If it fails, then pretend we aren't using GCC.
+ ac_prog=ld
+ ;;
+ *)
+ # If it is relative, then search for the first ld in PATH.
+ with_gnu_ld=unknown
+ ;;
+ esac
+elif test yes = "$with_gnu_ld"; then
+ AC_MSG_CHECKING([for GNU ld])
+else
+ AC_MSG_CHECKING([for non-GNU ld])
+fi
+AC_CACHE_VAL(lt_cv_path_LD,
+[if test -z "$LD"; then
+ lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+ for ac_dir in $PATH; do
+ IFS=$lt_save_ifs
+ test -z "$ac_dir" && ac_dir=.
+ if test -f "$ac_dir/$ac_prog" || test -f "$ac_dir/$ac_prog$ac_exeext"; then
+ lt_cv_path_LD=$ac_dir/$ac_prog
+ # Check to see if the program is GNU ld. I'd rather use --version,
+ # but apparently some variants of GNU ld only accept -v.
+ # Break only if it was the GNU/non-GNU ld that we prefer.
+ case `"$lt_cv_path_LD" -v 2>&1 </dev/null` in
+ *GNU* | *'with BFD'*)
+ test no != "$with_gnu_ld" && break
+ ;;
+ *)
+ test yes != "$with_gnu_ld" && break
+ ;;
+ esac
+ fi
+ done
+ IFS=$lt_save_ifs
+else
+ lt_cv_path_LD=$LD # Let the user override the test with a path.
+fi])
+LD=$lt_cv_path_LD
+if test -n "$LD"; then
+ AC_MSG_RESULT($LD)
+else
+ AC_MSG_RESULT(no)
+fi
+test -z "$LD" && AC_MSG_ERROR([no acceptable ld found in \$PATH])
+_LT_PATH_LD_GNU
+AC_SUBST([LD])
+
+_LT_TAGDECL([], [LD], [1], [The linker used to build libraries])
+])# LT_PATH_LD
+
+# Old names:
+AU_ALIAS([AM_PROG_LD], [LT_PATH_LD])
+AU_ALIAS([AC_PROG_LD], [LT_PATH_LD])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_PROG_LD], [])
+dnl AC_DEFUN([AC_PROG_LD], [])
+
+
+# _LT_PATH_LD_GNU
+#- --------------
+m4_defun([_LT_PATH_LD_GNU],
+[AC_CACHE_CHECK([if the linker ($LD) is GNU ld], lt_cv_prog_gnu_ld,
+[# I'd rather use --version here, but apparently some GNU lds only accept -v.
+case `$LD -v 2>&1 </dev/null` in
+*GNU* | *'with BFD'*)
+ lt_cv_prog_gnu_ld=yes
+ ;;
+*)
+ lt_cv_prog_gnu_ld=no
+ ;;
+esac])
+with_gnu_ld=$lt_cv_prog_gnu_ld
+])# _LT_PATH_LD_GNU
+
+
+# _LT_CMD_RELOAD
+# --------------
+# find reload flag for linker
+# -- PORTME Some linkers may need a different reload flag.
+m4_defun([_LT_CMD_RELOAD],
+[AC_CACHE_CHECK([for $LD option to reload object files],
+ lt_cv_ld_reload_flag,
+ [lt_cv_ld_reload_flag='-r'])
+reload_flag=$lt_cv_ld_reload_flag
+case $reload_flag in
+"" | " "*) ;;
+*) reload_flag=" $reload_flag" ;;
+esac
+reload_cmds='$LD$reload_flag -o $output$reload_objs'
+case $host_os in
+ cygwin* | mingw* | pw32* | cegcc*)
+ if test yes != "$GCC"; then
+ reload_cmds=false
+ fi
+ ;;
+ darwin*)
+ if test yes = "$GCC"; then
+ reload_cmds='$LTCC $LTCFLAGS -nostdlib $wl-r -o $output$reload_objs'
+ else
+ reload_cmds='$LD$reload_flag -o $output$reload_objs'
+ fi
+ ;;
+esac
+_LT_TAGDECL([], [reload_flag], [1], [How to create reloadable object files])dnl
+_LT_TAGDECL([], [reload_cmds], [2])dnl
+])# _LT_CMD_RELOAD
+
+
+# _LT_PATH_DD
+# -----------
+# find a working dd
+m4_defun([_LT_PATH_DD],
+[AC_CACHE_CHECK([for a working dd], [ac_cv_path_lt_DD],
+[printf 0123456789abcdef0123456789abcdef >conftest.i
+cat conftest.i conftest.i >conftest2.i
+: ${lt_DD:=$DD}
+AC_PATH_PROGS_FEATURE_CHECK([lt_DD], [dd],
+[if "$ac_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then
+ cmp -s conftest.i conftest.out \
+ && ac_cv_path_lt_DD="$ac_path_lt_DD" ac_path_lt_DD_found=:
+fi])
+rm -f conftest.i conftest2.i conftest.out])
+])# _LT_PATH_DD
+
+
+# _LT_CMD_TRUNCATE
+# ----------------
+# find command to truncate a binary pipe
+m4_defun([_LT_CMD_TRUNCATE],
+[m4_require([_LT_PATH_DD])
+AC_CACHE_CHECK([how to truncate binary pipes], [lt_cv_truncate_bin],
+[printf 0123456789abcdef0123456789abcdef >conftest.i
+cat conftest.i conftest.i >conftest2.i
+lt_cv_truncate_bin=
+if "$ac_cv_path_lt_DD" bs=32 count=1 <conftest2.i >conftest.out 2>/dev/null; then
+ cmp -s conftest.i conftest.out \
+ && lt_cv_truncate_bin="$ac_cv_path_lt_DD bs=4096 count=1"
+fi
+rm -f conftest.i conftest2.i conftest.out
+test -z "$lt_cv_truncate_bin" && lt_cv_truncate_bin="$SED -e 4q"])
+_LT_DECL([lt_truncate_bin], [lt_cv_truncate_bin], [1],
+ [Command to truncate a binary pipe])
+])# _LT_CMD_TRUNCATE
+
+
+# _LT_CHECK_MAGIC_METHOD
+# ----------------------
+# how to check for library dependencies
+# -- PORTME fill in with the dynamic library characteristics
+m4_defun([_LT_CHECK_MAGIC_METHOD],
+[m4_require([_LT_DECL_EGREP])
+m4_require([_LT_DECL_OBJDUMP])
+AC_CACHE_CHECK([how to recognize dependent libraries],
+lt_cv_deplibs_check_method,
+[lt_cv_file_magic_cmd='$MAGIC_CMD'
+lt_cv_file_magic_test_file=
+lt_cv_deplibs_check_method='unknown'
+# Need to set the preceding variable on all platforms that support
+# interlibrary dependencies.
+# 'none' -- dependencies not supported.
+# 'unknown' -- same as none, but documents that we really don't know.
+# 'pass_all' -- all dependencies passed with no checks.
+# 'test_compile' -- check by making test program.
+# 'file_magic [[regex]]' -- check by looking for files in library path
+# that responds to the $file_magic_cmd with a given extended regex.
+# If you have 'file' or equivalent on your system and you're not sure
+# whether 'pass_all' will *always* work, you probably want this one.
+
+case $host_os in
+aix[[4-9]]*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+beos*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+bsdi[[45]]*)
+ lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib)'
+ lt_cv_file_magic_cmd='/usr/bin/file -L'
+ lt_cv_file_magic_test_file=/shlib/libc.so
+ ;;
+
+cygwin*)
+ # func_win32_libid is a shell function defined in ltmain.sh
+ lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+ lt_cv_file_magic_cmd='func_win32_libid'
+ ;;
+
+mingw* | pw32*)
+ # Base MSYS/MinGW do not provide the 'file' command needed by
+ # func_win32_libid shell function, so use a weaker test based on 'objdump',
+ # unless we find 'file', for example because we are cross-compiling.
+ if ( file / ) >/dev/null 2>&1; then
+ lt_cv_deplibs_check_method='file_magic ^x86 archive import|^x86 DLL'
+ lt_cv_file_magic_cmd='func_win32_libid'
+ else
+ # Keep this pattern in sync with the one in func_win32_libid.
+ lt_cv_deplibs_check_method='file_magic file format (pei*-i386(.*architecture: i386)?|pe-arm-wince|pe-x86-64)'
+ lt_cv_file_magic_cmd='$OBJDUMP -f'
+ fi
+ ;;
+
+cegcc*)
+ # use the weaker test based on 'objdump'. See mingw*.
+ lt_cv_deplibs_check_method='file_magic file format pe-arm-.*little(.*architecture: arm)?'
+ lt_cv_file_magic_cmd='$OBJDUMP -f'
+ ;;
+
+darwin* | rhapsody*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+freebsd* | dragonfly*)
+ if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+ case $host_cpu in
+ i*86 )
+ # Not sure whether the presence of OpenBSD here was a mistake.
+ # Let's accept both of them until this is cleared up.
+ lt_cv_deplibs_check_method='file_magic (FreeBSD|OpenBSD|DragonFly)/i[[3-9]]86 (compact )?demand paged shared library'
+ lt_cv_file_magic_cmd=/usr/bin/file
+ lt_cv_file_magic_test_file=`echo /usr/lib/libc.so.*`
+ ;;
+ esac
+ else
+ lt_cv_deplibs_check_method=pass_all
+ fi
+ ;;
+
+haiku*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+hpux10.20* | hpux11*)
+ lt_cv_file_magic_cmd=/usr/bin/file
+ case $host_cpu in
+ ia64*)
+ lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|ELF-[[0-9]][[0-9]]) shared object file - IA64'
+ lt_cv_file_magic_test_file=/usr/lib/hpux32/libc.so
+ ;;
+ hppa*64*)
+ [lt_cv_deplibs_check_method='file_magic (s[0-9][0-9][0-9]|ELF[ -][0-9][0-9])(-bit)?( [LM]SB)? shared object( file)?[, -]* PA-RISC [0-9]\.[0-9]']
+ lt_cv_file_magic_test_file=/usr/lib/pa20_64/libc.sl
+ ;;
+ *)
+ lt_cv_deplibs_check_method='file_magic (s[[0-9]][[0-9]][[0-9]]|PA-RISC[[0-9]]\.[[0-9]]) shared library'
+ lt_cv_file_magic_test_file=/usr/lib/libc.sl
+ ;;
+ esac
+ ;;
+
+interix[[3-9]]*)
+ # PIC code is broken on Interix 3.x, that's why |\.a not |_pic\.a here
+ lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|\.a)$'
+ ;;
+
+irix5* | irix6* | nonstopux*)
+ case $LD in
+ *-32|*"-32 ") libmagic=32-bit;;
+ *-n32|*"-n32 ") libmagic=N32;;
+ *-64|*"-64 ") libmagic=64-bit;;
+ *) libmagic=never-match;;
+ esac
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+# This must be glibc/ELF.
+linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+netbsd*)
+ if echo __ELF__ | $CC -E - | $GREP __ELF__ > /dev/null; then
+ lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
+ else
+ lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so|_pic\.a)$'
+ fi
+ ;;
+
+newos6*)
+ lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (executable|dynamic lib)'
+ lt_cv_file_magic_cmd=/usr/bin/file
+ lt_cv_file_magic_test_file=/usr/lib/libnls.so
+ ;;
+
+*nto* | *qnx*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+openbsd* | bitrig*)
+ if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+ lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|\.so|_pic\.a)$'
+ else
+ lt_cv_deplibs_check_method='match_pattern /lib[[^/]]+(\.so\.[[0-9]]+\.[[0-9]]+|_pic\.a)$'
+ fi
+ ;;
+
+osf3* | osf4* | osf5*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+rdos*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+solaris*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX* | sysv4*uw2*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+
+sysv4 | sysv4.3*)
+ case $host_vendor in
+ motorola)
+ lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[ML]]SB (shared object|dynamic lib) M[[0-9]][[0-9]]* Version [[0-9]]'
+ lt_cv_file_magic_test_file=`echo /usr/lib/libc.so*`
+ ;;
+ ncr)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+ sequent)
+ lt_cv_file_magic_cmd='/bin/file'
+ lt_cv_deplibs_check_method='file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB (shared object|dynamic lib )'
+ ;;
+ sni)
+ lt_cv_file_magic_cmd='/bin/file'
+ lt_cv_deplibs_check_method="file_magic ELF [[0-9]][[0-9]]*-bit [[LM]]SB dynamic lib"
+ lt_cv_file_magic_test_file=/lib/libc.so
+ ;;
+ siemens)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+ pc)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+ esac
+ ;;
+
+tpf*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+os2*)
+ lt_cv_deplibs_check_method=pass_all
+ ;;
+esac
+])
+
+file_magic_glob=
+want_nocaseglob=no
+if test "$build" = "$host"; then
+ case $host_os in
+ mingw* | pw32*)
+ if ( shopt | grep nocaseglob ) >/dev/null 2>&1; then
+ want_nocaseglob=yes
+ else
+ file_magic_glob=`echo aAbBcCdDeEfFgGhHiIjJkKlLmMnNoOpPqQrRsStTuUvVwWxXyYzZ | $SED -e "s/\(..\)/s\/[[\1]]\/[[\1]]\/g;/g"`
+ fi
+ ;;
+ esac
+fi
+
+file_magic_cmd=$lt_cv_file_magic_cmd
+deplibs_check_method=$lt_cv_deplibs_check_method
+test -z "$deplibs_check_method" && deplibs_check_method=unknown
+
+_LT_DECL([], [deplibs_check_method], [1],
+ [Method to check whether dependent libraries are shared objects])
+_LT_DECL([], [file_magic_cmd], [1],
+ [Command to use when deplibs_check_method = "file_magic"])
+_LT_DECL([], [file_magic_glob], [1],
+ [How to find potential files when deplibs_check_method = "file_magic"])
+_LT_DECL([], [want_nocaseglob], [1],
+ [Find potential files using nocaseglob when deplibs_check_method = "file_magic"])
+])# _LT_CHECK_MAGIC_METHOD
+
+
+# LT_PATH_NM
+# ----------
+# find the pathname to a BSD- or MS-compatible name lister
+AC_DEFUN([LT_PATH_NM],
+[AC_REQUIRE([AC_PROG_CC])dnl
+AC_CACHE_CHECK([for BSD- or MS-compatible name lister (nm)], lt_cv_path_NM,
+[if test -n "$NM"; then
+ # Let the user override the test.
+ lt_cv_path_NM=$NM
+else
+ lt_nm_to_check=${ac_tool_prefix}nm
+ if test -n "$ac_tool_prefix" && test "$build" = "$host"; then
+ lt_nm_to_check="$lt_nm_to_check nm"
+ fi
+ for lt_tmp_nm in $lt_nm_to_check; do
+ lt_save_ifs=$IFS; IFS=$PATH_SEPARATOR
+ for ac_dir in $PATH /usr/ccs/bin/elf /usr/ccs/bin /usr/ucb /bin; do
+ IFS=$lt_save_ifs
+ test -z "$ac_dir" && ac_dir=.
+ tmp_nm=$ac_dir/$lt_tmp_nm
+ if test -f "$tmp_nm" || test -f "$tmp_nm$ac_exeext"; then
+ # Check to see if the nm accepts a BSD-compat flag.
+ # Adding the 'sed 1q' prevents false positives on HP-UX, which says:
+ # nm: unknown option "B" ignored
+ # Tru64's nm complains that /dev/null is an invalid object file
+ # MSYS converts /dev/null to NUL, MinGW nm treats NUL as empty
+ case $build_os in
+ mingw*) lt_bad_file=conftest.nm/nofile ;;
+ *) lt_bad_file=/dev/null ;;
+ esac
+ case `"$tmp_nm" -B $lt_bad_file 2>&1 | sed '1q'` in
+ *$lt_bad_file* | *'Invalid file or object type'*)
+ lt_cv_path_NM="$tmp_nm -B"
+ break 2
+ ;;
+ *)
+ case `"$tmp_nm" -p /dev/null 2>&1 | sed '1q'` in
+ */dev/null*)
+ lt_cv_path_NM="$tmp_nm -p"
+ break 2
+ ;;
+ *)
+ lt_cv_path_NM=${lt_cv_path_NM="$tmp_nm"} # keep the first match, but
+ continue # so that we can try to find one that supports BSD flags
+ ;;
+ esac
+ ;;
+ esac
+ fi
+ done
+ IFS=$lt_save_ifs
+ done
+ : ${lt_cv_path_NM=no}
+fi])
+if test no != "$lt_cv_path_NM"; then
+ NM=$lt_cv_path_NM
+else
+ # Didn't find any BSD compatible name lister, look for dumpbin.
+ if test -n "$DUMPBIN"; then :
+ # Let the user override the test.
+ else
+ AC_CHECK_TOOLS(DUMPBIN, [dumpbin "link -dump"], :)
+ case `$DUMPBIN -symbols -headers /dev/null 2>&1 | sed '1q'` in
+ *COFF*)
+ DUMPBIN="$DUMPBIN -symbols -headers"
+ ;;
+ *)
+ DUMPBIN=:
+ ;;
+ esac
+ fi
+ AC_SUBST([DUMPBIN])
+ if test : != "$DUMPBIN"; then
+ NM=$DUMPBIN
+ fi
+fi
+test -z "$NM" && NM=nm
+AC_SUBST([NM])
+_LT_DECL([], [NM], [1], [A BSD- or MS-compatible name lister])dnl
+
+AC_CACHE_CHECK([the name lister ($NM) interface], [lt_cv_nm_interface],
+ [lt_cv_nm_interface="BSD nm"
+ echo "int some_variable = 0;" > conftest.$ac_ext
+ (eval echo "\"\$as_me:$LINENO: $ac_compile\"" >&AS_MESSAGE_LOG_FD)
+ (eval "$ac_compile" 2>conftest.err)
+ cat conftest.err >&AS_MESSAGE_LOG_FD
+ (eval echo "\"\$as_me:$LINENO: $NM \\\"conftest.$ac_objext\\\"\"" >&AS_MESSAGE_LOG_FD)
+ (eval "$NM \"conftest.$ac_objext\"" 2>conftest.err > conftest.out)
+ cat conftest.err >&AS_MESSAGE_LOG_FD
+ (eval echo "\"\$as_me:$LINENO: output\"" >&AS_MESSAGE_LOG_FD)
+ cat conftest.out >&AS_MESSAGE_LOG_FD
+ if $GREP 'External.*some_variable' conftest.out > /dev/null; then
+ lt_cv_nm_interface="MS dumpbin"
+ fi
+ rm -f conftest*])
+])# LT_PATH_NM
+
+# Old names:
+AU_ALIAS([AM_PROG_NM], [LT_PATH_NM])
+AU_ALIAS([AC_PROG_NM], [LT_PATH_NM])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_PROG_NM], [])
+dnl AC_DEFUN([AC_PROG_NM], [])
+
+# _LT_CHECK_SHAREDLIB_FROM_LINKLIB
+# --------------------------------
+# how to determine the name of the shared library
+# associated with a specific link library.
+# -- PORTME fill in with the dynamic library characteristics
+m4_defun([_LT_CHECK_SHAREDLIB_FROM_LINKLIB],
+[m4_require([_LT_DECL_EGREP])
+m4_require([_LT_DECL_OBJDUMP])
+m4_require([_LT_DECL_DLLTOOL])
+AC_CACHE_CHECK([how to associate runtime and link libraries],
+lt_cv_sharedlib_from_linklib_cmd,
+[lt_cv_sharedlib_from_linklib_cmd='unknown'
+
+case $host_os in
+cygwin* | mingw* | pw32* | cegcc*)
+ # two different shell functions defined in ltmain.sh;
+ # decide which one to use based on capabilities of $DLLTOOL
+ case `$DLLTOOL --help 2>&1` in
+ *--identify-strict*)
+ lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib
+ ;;
+ *)
+ lt_cv_sharedlib_from_linklib_cmd=func_cygming_dll_for_implib_fallback
+ ;;
+ esac
+ ;;
+*)
+ # fallback: assume linklib IS sharedlib
+ lt_cv_sharedlib_from_linklib_cmd=$ECHO
+ ;;
+esac
+])
+sharedlib_from_linklib_cmd=$lt_cv_sharedlib_from_linklib_cmd
+test -z "$sharedlib_from_linklib_cmd" && sharedlib_from_linklib_cmd=$ECHO
+
+_LT_DECL([], [sharedlib_from_linklib_cmd], [1],
+ [Command to associate shared and link libraries])
+])# _LT_CHECK_SHAREDLIB_FROM_LINKLIB
+
+
+# _LT_PATH_MANIFEST_TOOL
+# ----------------------
+# locate the manifest tool
+m4_defun([_LT_PATH_MANIFEST_TOOL],
+[AC_CHECK_TOOL(MANIFEST_TOOL, mt, :)
+test -z "$MANIFEST_TOOL" && MANIFEST_TOOL=mt
+AC_CACHE_CHECK([if $MANIFEST_TOOL is a manifest tool], [lt_cv_path_mainfest_tool],
+ [lt_cv_path_mainfest_tool=no
+ echo "$as_me:$LINENO: $MANIFEST_TOOL '-?'" >&AS_MESSAGE_LOG_FD
+ $MANIFEST_TOOL '-?' 2>conftest.err > conftest.out
+ cat conftest.err >&AS_MESSAGE_LOG_FD
+ if $GREP 'Manifest Tool' conftest.out > /dev/null; then
+ lt_cv_path_mainfest_tool=yes
+ fi
+ rm -f conftest*])
+if test yes != "$lt_cv_path_mainfest_tool"; then
+ MANIFEST_TOOL=:
+fi
+_LT_DECL([], [MANIFEST_TOOL], [1], [Manifest tool])dnl
+])# _LT_PATH_MANIFEST_TOOL
+
+
+# _LT_DLL_DEF_P([FILE])
+# ---------------------
+# True iff FILE is a Windows DLL '.def' file.
+# Keep in sync with func_dll_def_p in the libtool script
+AC_DEFUN([_LT_DLL_DEF_P],
+[dnl
+ test DEF = "`$SED -n dnl
+ -e '\''s/^[[ ]]*//'\'' dnl Strip leading whitespace
+ -e '\''/^\(;.*\)*$/d'\'' dnl Delete empty lines and comments
+ -e '\''s/^\(EXPORTS\|LIBRARY\)\([[ ]].*\)*$/DEF/p'\'' dnl
+ -e q dnl Only consider the first "real" line
+ $1`" dnl
+])# _LT_DLL_DEF_P
+
+
+# LT_LIB_M
+# --------
+# check for math library
+AC_DEFUN([LT_LIB_M],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+LIBM=
+case $host in
+*-*-beos* | *-*-cegcc* | *-*-cygwin* | *-*-haiku* | *-*-pw32* | *-*-darwin*)
+ # These system don't have libm, or don't need it
+ ;;
+*-ncr-sysv4.3*)
+ AC_CHECK_LIB(mw, _mwvalidcheckl, LIBM=-lmw)
+ AC_CHECK_LIB(m, cos, LIBM="$LIBM -lm")
+ ;;
+*)
+ AC_CHECK_LIB(m, cos, LIBM=-lm)
+ ;;
+esac
+AC_SUBST([LIBM])
+])# LT_LIB_M
+
+# Old name:
+AU_ALIAS([AC_CHECK_LIBM], [LT_LIB_M])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_CHECK_LIBM], [])
+
+
+# _LT_COMPILER_NO_RTTI([TAGNAME])
+# -------------------------------
+m4_defun([_LT_COMPILER_NO_RTTI],
+[m4_require([_LT_TAG_COMPILER])dnl
+
+_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
+
+if test yes = "$GCC"; then
+ case $cc_basename in
+ nvcc*)
+ _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -Xcompiler -fno-builtin' ;;
+ *)
+ _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin' ;;
+ esac
+
+ _LT_COMPILER_OPTION([if $compiler supports -fno-rtti -fno-exceptions],
+ lt_cv_prog_compiler_rtti_exceptions,
+ [-fno-rtti -fno-exceptions], [],
+ [_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)="$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1) -fno-rtti -fno-exceptions"])
+fi
+_LT_TAGDECL([no_builtin_flag], [lt_prog_compiler_no_builtin_flag], [1],
+ [Compiler flag to turn off builtin functions])
+])# _LT_COMPILER_NO_RTTI
+
+
+# _LT_CMD_GLOBAL_SYMBOLS
+# ----------------------
+m4_defun([_LT_CMD_GLOBAL_SYMBOLS],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_PROG_CC])dnl
+AC_REQUIRE([AC_PROG_AWK])dnl
+AC_REQUIRE([LT_PATH_NM])dnl
+AC_REQUIRE([LT_PATH_LD])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_TAG_COMPILER])dnl
+
+# Check for command to grab the raw symbol name followed by C symbol from nm.
+AC_MSG_CHECKING([command to parse $NM output from $compiler object])
+AC_CACHE_VAL([lt_cv_sys_global_symbol_pipe],
+[
+# These are sane defaults that work on at least a few old systems.
+# [They come from Ultrix. What could be older than Ultrix?!! ;)]
+
+# Character class describing NM global symbol codes.
+symcode='[[BCDEGRST]]'
+
+# Regexp to match symbols that can be accessed directly from C.
+sympat='\([[_A-Za-z]][[_A-Za-z0-9]]*\)'
+
+# Define system-specific variables.
+case $host_os in
+aix*)
+ symcode='[[BCDT]]'
+ ;;
+cygwin* | mingw* | pw32* | cegcc*)
+ symcode='[[ABCDGISTW]]'
+ ;;
+hpux*)
+ if test ia64 = "$host_cpu"; then
+ symcode='[[ABCDEGRST]]'
+ fi
+ ;;
+irix* | nonstopux*)
+ symcode='[[BCDEGRST]]'
+ ;;
+osf*)
+ symcode='[[BCDEGQRST]]'
+ ;;
+solaris*)
+ symcode='[[BDRT]]'
+ ;;
+sco3.2v5*)
+ symcode='[[DT]]'
+ ;;
+sysv4.2uw2*)
+ symcode='[[DT]]'
+ ;;
+sysv5* | sco5v6* | unixware* | OpenUNIX*)
+ symcode='[[ABDT]]'
+ ;;
+sysv4)
+ symcode='[[DFNSTU]]'
+ ;;
+esac
+
+# If we're using GNU nm, then use its standard symbol codes.
+case `$NM -V 2>&1` in
+*GNU* | *'with BFD'*)
+ symcode='[[ABCDGIRSTW]]' ;;
+esac
+
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+ # Gets list of data symbols to import.
+ lt_cv_sys_global_symbol_to_import="sed -n -e 's/^I .* \(.*\)$/\1/p'"
+ # Adjust the below global symbol transforms to fixup imported variables.
+ lt_cdecl_hook=" -e 's/^I .* \(.*\)$/extern __declspec(dllimport) char \1;/p'"
+ lt_c_name_hook=" -e 's/^I .* \(.*\)$/ {\"\1\", (void *) 0},/p'"
+ lt_c_name_lib_hook="\
+ -e 's/^I .* \(lib.*\)$/ {\"\1\", (void *) 0},/p'\
+ -e 's/^I .* \(.*\)$/ {\"lib\1\", (void *) 0},/p'"
+else
+ # Disable hooks by default.
+ lt_cv_sys_global_symbol_to_import=
+ lt_cdecl_hook=
+ lt_c_name_hook=
+ lt_c_name_lib_hook=
+fi
+
+# Transform an extracted symbol line into a proper C declaration.
+# Some systems (esp. on ia64) link data and code symbols differently,
+# so use this general approach.
+lt_cv_sys_global_symbol_to_cdecl="sed -n"\
+$lt_cdecl_hook\
+" -e 's/^T .* \(.*\)$/extern int \1();/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/extern char \1;/p'"
+
+# Transform an extracted symbol line into symbol name and symbol address
+lt_cv_sys_global_symbol_to_c_name_address="sed -n"\
+$lt_c_name_hook\
+" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/p'"
+
+# Transform an extracted symbol line into symbol name with lib prefix and
+# symbol address.
+lt_cv_sys_global_symbol_to_c_name_address_lib_prefix="sed -n"\
+$lt_c_name_lib_hook\
+" -e 's/^: \(.*\) .*$/ {\"\1\", (void *) 0},/p'"\
+" -e 's/^$symcode$symcode* .* \(lib.*\)$/ {\"\1\", (void *) \&\1},/p'"\
+" -e 's/^$symcode$symcode* .* \(.*\)$/ {\"lib\1\", (void *) \&\1},/p'"
+
+# Handle CRLF in mingw tool chain
+opt_cr=
+case $build_os in
+mingw*)
+ opt_cr=`$ECHO 'x\{0,1\}' | tr x '\015'` # option cr in regexp
+ ;;
+esac
+
+# Try without a prefix underscore, then with it.
+for ac_symprfx in "" "_"; do
+
+ # Transform symcode, sympat, and symprfx into a raw symbol and a C symbol.
+ symxfrm="\\1 $ac_symprfx\\2 \\2"
+
+ # Write the raw and C identifiers.
+ if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+ # Fake it for dumpbin and say T for any non-static function,
+ # D for any global variable and I for any imported variable.
+ # Also find C++ and __fastcall symbols from MSVC++,
+ # which start with @ or ?.
+ lt_cv_sys_global_symbol_pipe="$AWK ['"\
+" {last_section=section; section=\$ 3};"\
+" /^COFF SYMBOL TABLE/{for(i in hide) delete hide[i]};"\
+" /Section length .*#relocs.*(pick any)/{hide[last_section]=1};"\
+" /^ *Symbol name *: /{split(\$ 0,sn,\":\"); si=substr(sn[2],2)};"\
+" /^ *Type *: code/{print \"T\",si,substr(si,length(prfx))};"\
+" /^ *Type *: data/{print \"I\",si,substr(si,length(prfx))};"\
+" \$ 0!~/External *\|/{next};"\
+" / 0+ UNDEF /{next}; / UNDEF \([^|]\)*()/{next};"\
+" {if(hide[section]) next};"\
+" {f=\"D\"}; \$ 0~/\(\).*\|/{f=\"T\"};"\
+" {split(\$ 0,a,/\||\r/); split(a[2],s)};"\
+" s[1]~/^[@?]/{print f,s[1],s[1]; next};"\
+" s[1]~prfx {split(s[1],t,\"@\"); print f,t[1],substr(t[1],length(prfx))}"\
+" ' prfx=^$ac_symprfx]"
+ else
+ lt_cv_sys_global_symbol_pipe="sed -n -e 's/^.*[[ ]]\($symcode$symcode*\)[[ ]][[ ]]*$ac_symprfx$sympat$opt_cr$/$symxfrm/p'"
+ fi
+ lt_cv_sys_global_symbol_pipe="$lt_cv_sys_global_symbol_pipe | sed '/ __gnu_lto/d'"
+
+ # Check to see that the pipe works correctly.
+ pipe_works=no
+
+ rm -f conftest*
+ cat > conftest.$ac_ext <<_LT_EOF
+#ifdef __cplusplus
+extern "C" {
+#endif
+char nm_test_var;
+void nm_test_func(void);
+void nm_test_func(void){}
+#ifdef __cplusplus
+}
+#endif
+int main(){nm_test_var='a';nm_test_func();return(0);}
+_LT_EOF
+
+ if AC_TRY_EVAL(ac_compile); then
+ # Now try to grab the symbols.
+ nlist=conftest.nm
+ if AC_TRY_EVAL(NM conftest.$ac_objext \| "$lt_cv_sys_global_symbol_pipe" \> $nlist) && test -s "$nlist"; then
+ # Try sorting and uniquifying the output.
+ if sort "$nlist" | uniq > "$nlist"T; then
+ mv -f "$nlist"T "$nlist"
+ else
+ rm -f "$nlist"T
+ fi
+
+ # Make sure that we snagged all the symbols we need.
+ if $GREP ' nm_test_var$' "$nlist" >/dev/null; then
+ if $GREP ' nm_test_func$' "$nlist" >/dev/null; then
+ cat <<_LT_EOF > conftest.$ac_ext
+/* Keep this code in sync between libtool.m4, ltmain, lt_system.h, and tests. */
+#if defined _WIN32 || defined __CYGWIN__ || defined _WIN32_WCE
+/* DATA imports from DLLs on WIN32 can't be const, because runtime
+ relocations are performed -- see ld's documentation on pseudo-relocs. */
+# define LT@&t@_DLSYM_CONST
+#elif defined __osf__
+/* This system does not cope well with relocations in const data. */
+# define LT@&t@_DLSYM_CONST
+#else
+# define LT@&t@_DLSYM_CONST const
+#endif
+
+#ifdef __cplusplus
+extern "C" {
+#endif
+
+_LT_EOF
+ # Now generate the symbol file.
+ eval "$lt_cv_sys_global_symbol_to_cdecl"' < "$nlist" | $GREP -v main >> conftest.$ac_ext'
+
+ cat <<_LT_EOF >> conftest.$ac_ext
+
+/* The mapping between symbol names and symbols. */
+LT@&t@_DLSYM_CONST struct {
+ const char *name;
+ void *address;
+}
+lt__PROGRAM__LTX_preloaded_symbols[[]] =
+{
+ { "@PROGRAM@", (void *) 0 },
+_LT_EOF
+ $SED "s/^$symcode$symcode* .* \(.*\)$/ {\"\1\", (void *) \&\1},/" < "$nlist" | $GREP -v main >> conftest.$ac_ext
+ cat <<\_LT_EOF >> conftest.$ac_ext
+ {0, (void *) 0}
+};
+
+/* This works around a problem in FreeBSD linker */
+#ifdef FREEBSD_WORKAROUND
+static const void *lt_preloaded_setup() {
+ return lt__PROGRAM__LTX_preloaded_symbols;
+}
+#endif
+
+#ifdef __cplusplus
+}
+#endif
+_LT_EOF
+ # Now try linking the two files.
+ mv conftest.$ac_objext conftstm.$ac_objext
+ lt_globsym_save_LIBS=$LIBS
+ lt_globsym_save_CFLAGS=$CFLAGS
+ LIBS=conftstm.$ac_objext
+ CFLAGS="$CFLAGS$_LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)"
+ if AC_TRY_EVAL(ac_link) && test -s conftest$ac_exeext; then
+ pipe_works=yes
+ fi
+ LIBS=$lt_globsym_save_LIBS
+ CFLAGS=$lt_globsym_save_CFLAGS
+ else
+ echo "cannot find nm_test_func in $nlist" >&AS_MESSAGE_LOG_FD
+ fi
+ else
+ echo "cannot find nm_test_var in $nlist" >&AS_MESSAGE_LOG_FD
+ fi
+ else
+ echo "cannot run $lt_cv_sys_global_symbol_pipe" >&AS_MESSAGE_LOG_FD
+ fi
+ else
+ echo "$progname: failed program was:" >&AS_MESSAGE_LOG_FD
+ cat conftest.$ac_ext >&5
+ fi
+ rm -rf conftest* conftst*
+
+ # Do not use the global_symbol_pipe unless it works.
+ if test yes = "$pipe_works"; then
+ break
+ else
+ lt_cv_sys_global_symbol_pipe=
+ fi
+done
+])
+if test -z "$lt_cv_sys_global_symbol_pipe"; then
+ lt_cv_sys_global_symbol_to_cdecl=
+fi
+if test -z "$lt_cv_sys_global_symbol_pipe$lt_cv_sys_global_symbol_to_cdecl"; then
+ AC_MSG_RESULT(failed)
+else
+ AC_MSG_RESULT(ok)
+fi
+
+# Response file support.
+if test "$lt_cv_nm_interface" = "MS dumpbin"; then
+ nm_file_list_spec='@'
+elif $NM --help 2>/dev/null | grep '[[@]]FILE' >/dev/null; then
+ nm_file_list_spec='@'
+fi
+
+_LT_DECL([global_symbol_pipe], [lt_cv_sys_global_symbol_pipe], [1],
+ [Take the output of nm and produce a listing of raw symbols and C names])
+_LT_DECL([global_symbol_to_cdecl], [lt_cv_sys_global_symbol_to_cdecl], [1],
+ [Transform the output of nm in a proper C declaration])
+_LT_DECL([global_symbol_to_import], [lt_cv_sys_global_symbol_to_import], [1],
+ [Transform the output of nm into a list of symbols to manually relocate])
+_LT_DECL([global_symbol_to_c_name_address],
+ [lt_cv_sys_global_symbol_to_c_name_address], [1],
+ [Transform the output of nm in a C name address pair])
+_LT_DECL([global_symbol_to_c_name_address_lib_prefix],
+ [lt_cv_sys_global_symbol_to_c_name_address_lib_prefix], [1],
+ [Transform the output of nm in a C name address pair when lib prefix is needed])
+_LT_DECL([nm_interface], [lt_cv_nm_interface], [1],
+ [The name lister interface])
+_LT_DECL([], [nm_file_list_spec], [1],
+ [Specify filename containing input files for $NM])
+]) # _LT_CMD_GLOBAL_SYMBOLS
+
+
+# _LT_COMPILER_PIC([TAGNAME])
+# ---------------------------
+m4_defun([_LT_COMPILER_PIC],
+[m4_require([_LT_TAG_COMPILER])dnl
+_LT_TAGVAR(lt_prog_compiler_wl, $1)=
+_LT_TAGVAR(lt_prog_compiler_pic, $1)=
+_LT_TAGVAR(lt_prog_compiler_static, $1)=
+
+m4_if([$1], [CXX], [
+ # C++ specific cases for pic, static, wl, etc.
+ if test yes = "$GXX"; then
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+
+ case $host_os in
+ aix*)
+ # All AIX code is PIC.
+ if test ia64 = "$host_cpu"; then
+ # AIX 5 now supports IA64 processor
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ fi
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+ ;;
+
+ amigaos*)
+ case $host_cpu in
+ powerpc)
+ # see comment about AmigaOS4 .so support
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+ ;;
+ m68k)
+ # FIXME: we need at least 68020 code to build shared libraries, but
+ # adding the '-m68020' flag to GCC prevents building anything better,
+ # like '-m68040'.
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
+ ;;
+ esac
+ ;;
+
+ beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+ # PIC is the default for these OSes.
+ ;;
+ mingw* | cygwin* | os2* | pw32* | cegcc*)
+ # This hack is so that the source file can tell whether it is being
+ # built for inclusion in a dll (and should export symbols for example).
+ # Although the cygwin gcc ignores -fPIC, still need this for old-style
+ # (--disable-auto-import) libraries
+ m4_if([$1], [GCJ], [],
+ [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+ case $host_os in
+ os2*)
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
+ ;;
+ esac
+ ;;
+ darwin* | rhapsody*)
+ # PIC is the default on this platform
+ # Common symbols not allowed in MH_DYLIB files
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
+ ;;
+ *djgpp*)
+ # DJGPP does not support shared libraries at all
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+ ;;
+ haiku*)
+ # PIC is the default for Haiku.
+ # The "-static" flag exists, but is broken.
+ _LT_TAGVAR(lt_prog_compiler_static, $1)=
+ ;;
+ interix[[3-9]]*)
+ # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+ # Instead, we relocate shared libraries at runtime.
+ ;;
+ sysv4*MP*)
+ if test -d /usr/nec; then
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
+ fi
+ ;;
+ hpux*)
+ # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+ # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag
+ # sets the default TLS model and affects inlining.
+ case $host_cpu in
+ hppa*64*)
+ ;;
+ *)
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+ ;;
+ esac
+ ;;
+ *qnx* | *nto*)
+ # QNX uses GNU C++, but need to define -shared option too, otherwise
+ # it will coredump.
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+ ;;
+ *)
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+ ;;
+ esac
+ else
+ case $host_os in
+ aix[[4-9]]*)
+ # All AIX code is PIC.
+ if test ia64 = "$host_cpu"; then
+ # AIX 5 now supports IA64 processor
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ else
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
+ fi
+ ;;
+ chorus*)
+ case $cc_basename in
+ cxch68*)
+ # Green Hills C++ Compiler
+ # _LT_TAGVAR(lt_prog_compiler_static, $1)="--no_auto_instantiation -u __main -u __premain -u _abort -r $COOL_DIR/lib/libOrb.a $MVME_DIR/lib/CC/libC.a $MVME_DIR/lib/classix/libcx.s.a"
+ ;;
+ esac
+ ;;
+ mingw* | cygwin* | os2* | pw32* | cegcc*)
+ # This hack is so that the source file can tell whether it is being
+ # built for inclusion in a dll (and should export symbols for example).
+ m4_if([$1], [GCJ], [],
+ [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+ ;;
+ dgux*)
+ case $cc_basename in
+ ec++*)
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+ ;;
+ ghcx*)
+ # Green Hills C++ Compiler
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ freebsd* | dragonfly*)
+ # FreeBSD uses GNU C++
+ ;;
+ hpux9* | hpux10* | hpux11*)
+ case $cc_basename in
+ CC*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
+ if test ia64 != "$host_cpu"; then
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+ fi
+ ;;
+ aCC*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
+ case $host_cpu in
+ hppa*64*|ia64*)
+ # +Z the default
+ ;;
+ *)
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+ ;;
+ esac
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ interix*)
+ # This is c89, which is MS Visual C++ (no shared libs)
+ # Anyone wants to do a port?
+ ;;
+ irix5* | irix6* | nonstopux*)
+ case $cc_basename in
+ CC*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+ # CC pic flag -KPIC is the default.
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+ case $cc_basename in
+ KCC*)
+ # KAI C++ Compiler
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+ ;;
+ ecpc* )
+ # old Intel C++ for x86_64, which still supported -KPIC.
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+ ;;
+ icpc* )
+ # Intel C++, used to be incompatible with GCC.
+ # ICC 10 doesn't accept -KPIC any more.
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+ ;;
+ pgCC* | pgcpp*)
+ # Portland Group C++ compiler
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ ;;
+ cxx*)
+ # Compaq C++
+ # Make sure the PIC flag is empty. It appears that all Alpha
+ # Linux and Compaq Tru64 Unix objects are PIC.
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+ ;;
+ xlc* | xlC* | bgxl[[cC]]* | mpixl[[cC]]*)
+ # IBM XL 8.0, 9.0 on PPC and BlueGene
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
+ ;;
+ *)
+ case `$CC -V 2>&1 | sed 5q` in
+ *Sun\ C*)
+ # Sun C++ 5.9
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+ ;;
+ esac
+ ;;
+ esac
+ ;;
+ lynxos*)
+ ;;
+ m88k*)
+ ;;
+ mvs*)
+ case $cc_basename in
+ cxx*)
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-W c,exportall'
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ netbsd*)
+ ;;
+ *qnx* | *nto*)
+ # QNX uses GNU C++, but need to define -shared option too, otherwise
+ # it will coredump.
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+ ;;
+ osf3* | osf4* | osf5*)
+ case $cc_basename in
+ KCC*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='--backend -Wl,'
+ ;;
+ RCC*)
+ # Rational C++ 2.4.1
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+ ;;
+ cxx*)
+ # Digital/Compaq C++
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ # Make sure the PIC flag is empty. It appears that all Alpha
+ # Linux and Compaq Tru64 Unix objects are PIC.
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ psos*)
+ ;;
+ solaris*)
+ case $cc_basename in
+ CC* | sunCC*)
+ # Sun C++ 4.2, 5.x and Centerline C++
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+ ;;
+ gcx*)
+ # Green Hills C++ Compiler
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ sunos4*)
+ case $cc_basename in
+ CC*)
+ # Sun C++ 4.x
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ ;;
+ lcc*)
+ # Lucid
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+ case $cc_basename in
+ CC*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ ;;
+ esac
+ ;;
+ tandem*)
+ case $cc_basename in
+ NCC*)
+ # NonStop-UX NCC 3.20
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+ ;;
+ *)
+ ;;
+ esac
+ ;;
+ vxworks*)
+ ;;
+ *)
+ _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+ ;;
+ esac
+ fi
+],
+[
+ if test yes = "$GCC"; then
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+
+ case $host_os in
+ aix*)
+ # All AIX code is PIC.
+ if test ia64 = "$host_cpu"; then
+ # AIX 5 now supports IA64 processor
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ fi
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+ ;;
+
+ amigaos*)
+ case $host_cpu in
+ powerpc)
+ # see comment about AmigaOS4 .so support
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+ ;;
+ m68k)
+ # FIXME: we need at least 68020 code to build shared libraries, but
+ # adding the '-m68020' flag to GCC prevents building anything better,
+ # like '-m68040'.
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-m68020 -resident32 -malways-restore-a4'
+ ;;
+ esac
+ ;;
+
+ beos* | irix5* | irix6* | nonstopux* | osf3* | osf4* | osf5*)
+ # PIC is the default for these OSes.
+ ;;
+
+ mingw* | cygwin* | pw32* | os2* | cegcc*)
+ # This hack is so that the source file can tell whether it is being
+ # built for inclusion in a dll (and should export symbols for example).
+ # Although the cygwin gcc ignores -fPIC, still need this for old-style
+ # (--disable-auto-import) libraries
+ m4_if([$1], [GCJ], [],
+ [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+ case $host_os in
+ os2*)
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
+ ;;
+ esac
+ ;;
+
+ darwin* | rhapsody*)
+ # PIC is the default on this platform
+ # Common symbols not allowed in MH_DYLIB files
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
+ ;;
+
+ haiku*)
+ # PIC is the default for Haiku.
+ # The "-static" flag exists, but is broken.
+ _LT_TAGVAR(lt_prog_compiler_static, $1)=
+ ;;
+
+ hpux*)
+ # PIC is the default for 64-bit PA HP-UX, but not for 32-bit
+ # PA HP-UX. On IA64 HP-UX, PIC is the default but the pic flag
+ # sets the default TLS model and affects inlining.
+ case $host_cpu in
+ hppa*64*)
+ # +Z the default
+ ;;
+ *)
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+ ;;
+ esac
+ ;;
+
+ interix[[3-9]]*)
+ # Interix 3.x gcc -fpic/-fPIC options generate broken code.
+ # Instead, we relocate shared libraries at runtime.
+ ;;
+
+ msdosdjgpp*)
+ # Just because we use GCC doesn't mean we suddenly get shared libraries
+ # on systems that don't support them.
+ _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+ enable_shared=no
+ ;;
+
+ *nto* | *qnx*)
+ # QNX uses GNU C++, but need to define -shared option too, otherwise
+ # it will coredump.
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+ ;;
+
+ sysv4*MP*)
+ if test -d /usr/nec; then
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)=-Kconform_pic
+ fi
+ ;;
+
+ *)
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+ ;;
+ esac
+
+ case $cc_basename in
+ nvcc*) # Cuda Compiler Driver 2.2
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Xlinker '
+ if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)="-Xcompiler $_LT_TAGVAR(lt_prog_compiler_pic, $1)"
+ fi
+ ;;
+ esac
+ else
+ # PORTME Check for flag to pass linker flags through the system compiler.
+ case $host_os in
+ aix*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ if test ia64 = "$host_cpu"; then
+ # AIX 5 now supports IA64 processor
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ else
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-bnso -bI:/lib/syscalls.exp'
+ fi
+ ;;
+
+ darwin* | rhapsody*)
+ # PIC is the default on this platform
+ # Common symbols not allowed in MH_DYLIB files
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fno-common'
+ case $cc_basename in
+ nagfor*)
+ # NAG Fortran compiler
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ ;;
+ esac
+ ;;
+
+ mingw* | cygwin* | pw32* | os2* | cegcc*)
+ # This hack is so that the source file can tell whether it is being
+ # built for inclusion in a dll (and should export symbols for example).
+ m4_if([$1], [GCJ], [],
+ [_LT_TAGVAR(lt_prog_compiler_pic, $1)='-DDLL_EXPORT'])
+ case $host_os in
+ os2*)
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-static'
+ ;;
+ esac
+ ;;
+
+ hpux9* | hpux10* | hpux11*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ # PIC is the default for IA64 HP-UX and 64-bit HP-UX, but
+ # not for PA HP-UX.
+ case $host_cpu in
+ hppa*64*|ia64*)
+ # +Z the default
+ ;;
+ *)
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='+Z'
+ ;;
+ esac
+ # Is there a better lt_prog_compiler_static that works with the bundled CC?
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='$wl-a ${wl}archive'
+ ;;
+
+ irix5* | irix6* | nonstopux*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ # PIC (with -KPIC) is the default.
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+ ;;
+
+ linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+ case $cc_basename in
+ # old Intel for x86_64, which still supported -KPIC.
+ ecc*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+ ;;
+ # icc used to be incompatible with GCC.
+ # ICC 10 doesn't accept -KPIC any more.
+ icc* | ifort*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+ ;;
+ # Lahey Fortran 8.1.
+ lf95*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='--shared'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='--static'
+ ;;
+ nagfor*)
+ # NAG Fortran compiler
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,-Wl,,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ ;;
+ tcc*)
+ # Fabrice Bellard et al's Tiny C Compiler
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+ ;;
+ pgcc* | pgf77* | pgf90* | pgf95* | pgfortran*)
+ # Portland Group compilers (*not* the Pentium gcc compiler,
+ # which looks to be a dead project)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ ;;
+ ccc*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ # All Alpha code is PIC.
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+ ;;
+ xl* | bgxl* | bgf* | mpixl*)
+ # IBM XL C 8.0/Fortran 10.1, 11.1 on PPC and BlueGene
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-qpic'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-qstaticlink'
+ ;;
+ *)
+ case `$CC -V 2>&1 | sed 5q` in
+ *Sun\ Ceres\ Fortran* | *Sun*Fortran*\ [[1-7]].* | *Sun*Fortran*\ 8.[[0-3]]*)
+ # Sun Fortran 8.3 passes all unrecognized flags to the linker
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)=''
+ ;;
+ *Sun\ F* | *Sun*Fortran*)
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+ ;;
+ *Sun\ C*)
+ # Sun C 5.9
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ ;;
+ *Intel*\ [[CF]]*Compiler*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-static'
+ ;;
+ *Portland\ Group*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fpic'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ ;;
+ esac
+ ;;
+ esac
+ ;;
+
+ newsos6)
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ ;;
+
+ *nto* | *qnx*)
+ # QNX uses GNU C++, but need to define -shared option too, otherwise
+ # it will coredump.
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-fPIC -shared'
+ ;;
+
+ osf3* | osf4* | osf5*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ # All OSF/1 code is PIC.
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+ ;;
+
+ rdos*)
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-non_shared'
+ ;;
+
+ solaris*)
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ case $cc_basename in
+ f77* | f90* | f95* | sunf77* | sunf90* | sunf95*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld ';;
+ *)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,';;
+ esac
+ ;;
+
+ sunos4*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Qoption ld '
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-PIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ ;;
+
+ sysv4 | sysv4.2uw2* | sysv4.3*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ ;;
+
+ sysv4*MP*)
+ if test -d /usr/nec; then
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-Kconform_pic'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ fi
+ ;;
+
+ sysv5* | unixware* | sco3.2v5* | sco5v6* | OpenUNIX*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-KPIC'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ ;;
+
+ unicos*)
+ _LT_TAGVAR(lt_prog_compiler_wl, $1)='-Wl,'
+ _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+ ;;
+
+ uts4*)
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)='-pic'
+ _LT_TAGVAR(lt_prog_compiler_static, $1)='-Bstatic'
+ ;;
+
+ *)
+ _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no
+ ;;
+ esac
+ fi
+])
+case $host_os in
+ # For platforms that do not support PIC, -DPIC is meaningless:
+ *djgpp*)
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)=
+ ;;
+ *)
+ _LT_TAGVAR(lt_prog_compiler_pic, $1)="$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])"
+ ;;
+esac
+
+AC_CACHE_CHECK([for $compiler option to produce PIC],
+ [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)],
+ [_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_prog_compiler_pic, $1)])
+_LT_TAGVAR(lt_prog_compiler_pic, $1)=$_LT_TAGVAR(lt_cv_prog_compiler_pic, $1)
+
+#
+# Check to make sure the PIC flag actually works.
+#
+if test -n "$_LT_TAGVAR(lt_prog_compiler_pic, $1)"; then
+ _LT_COMPILER_OPTION([if $compiler PIC flag $_LT_TAGVAR(lt_prog_compiler_pic, $1) works],
+ [_LT_TAGVAR(lt_cv_prog_compiler_pic_works, $1)],
+ [$_LT_TAGVAR(lt_prog_compiler_pic, $1)@&t@m4_if([$1],[],[ -DPIC],[m4_if([$1],[CXX],[ -DPIC],[])])], [],
+ [case $_LT_TAGVAR(lt_prog_compiler_pic, $1) in
+ "" | " "*) ;;
+ *) _LT_TAGVAR(lt_prog_compiler_pic, $1)=" $_LT_TAGVAR(lt_prog_compiler_pic, $1)" ;;
+ esac],
+ [_LT_TAGVAR(lt_prog_compiler_pic, $1)=
+ _LT_TAGVAR(lt_prog_compiler_can_build_shared, $1)=no])
+fi
+_LT_TAGDECL([pic_flag], [lt_prog_compiler_pic], [1],
+ [Additional compiler flags for building library objects])
+
+_LT_TAGDECL([wl], [lt_prog_compiler_wl], [1],
+ [How to pass a linker flag through the compiler])
+#
+# Check to make sure the static flag actually works.
+#
+wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1) eval lt_tmp_static_flag=\"$_LT_TAGVAR(lt_prog_compiler_static, $1)\"
+_LT_LINKER_OPTION([if $compiler static flag $lt_tmp_static_flag works],
+ _LT_TAGVAR(lt_cv_prog_compiler_static_works, $1),
+ $lt_tmp_static_flag,
+ [],
+ [_LT_TAGVAR(lt_prog_compiler_static, $1)=])
+_LT_TAGDECL([link_static_flag], [lt_prog_compiler_static], [1],
+ [Compiler flag to prevent dynamic linking])
+])# _LT_COMPILER_PIC
+
+
+# _LT_LINKER_SHLIBS([TAGNAME])
+# ----------------------------
+# See if the linker supports building shared libraries.
+m4_defun([_LT_LINKER_SHLIBS],
+[AC_REQUIRE([LT_PATH_LD])dnl
+AC_REQUIRE([LT_PATH_NM])dnl
+m4_require([_LT_PATH_MANIFEST_TOOL])dnl
+m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_DECL_SED])dnl
+m4_require([_LT_CMD_GLOBAL_SYMBOLS])dnl
+m4_require([_LT_TAG_COMPILER])dnl
+AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
+m4_if([$1], [CXX], [
+ _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+ _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
+ case $host_os in
+ aix[[4-9]]*)
+ # If we're using GNU nm, then we don't want the "-C" option.
+ # -C means demangle to GNU nm, but means don't demangle to AIX nm.
+ # Without the "-l" option, or with the "-B" option, AIX nm treats
+ # weak defined symbols like other global defined symbols, whereas
+ # GNU nm marks them as "W".
+ # While the 'weak' keyword is ignored in the Export File, we need
+ # it in the Import File for the 'aix-soname' feature, so we have
+ # to replace the "-B" option with "-P" for AIX nm.
+ if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+ _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
+ else
+ _LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
+ fi
+ ;;
+ pw32*)
+ _LT_TAGVAR(export_symbols_cmds, $1)=$ltdll_cmds
+ ;;
+ cygwin* | mingw* | cegcc*)
+ case $cc_basename in
+ cl*)
+ _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+ ;;
+ *)
+ _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
+ _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
+ ;;
+ esac
+ ;;
+ *)
+ _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+ ;;
+ esac
+], [
+ runpath_var=
+ _LT_TAGVAR(allow_undefined_flag, $1)=
+ _LT_TAGVAR(always_export_symbols, $1)=no
+ _LT_TAGVAR(archive_cmds, $1)=
+ _LT_TAGVAR(archive_expsym_cmds, $1)=
+ _LT_TAGVAR(compiler_needs_object, $1)=no
+ _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)=
+ _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED '\''s/.* //'\'' | sort | uniq > $export_symbols'
+ _LT_TAGVAR(hardcode_automatic, $1)=no
+ _LT_TAGVAR(hardcode_direct, $1)=no
+ _LT_TAGVAR(hardcode_direct_absolute, $1)=no
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=
+ _LT_TAGVAR(hardcode_minus_L, $1)=no
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+ _LT_TAGVAR(inherit_rpath, $1)=no
+ _LT_TAGVAR(link_all_deplibs, $1)=unknown
+ _LT_TAGVAR(module_cmds, $1)=
+ _LT_TAGVAR(module_expsym_cmds, $1)=
+ _LT_TAGVAR(old_archive_from_new_cmds, $1)=
+ _LT_TAGVAR(old_archive_from_expsyms_cmds, $1)=
+ _LT_TAGVAR(thread_safe_flag_spec, $1)=
+ _LT_TAGVAR(whole_archive_flag_spec, $1)=
+ # include_expsyms should be a list of space-separated symbols to be *always*
+ # included in the symbol list
+ _LT_TAGVAR(include_expsyms, $1)=
+ # exclude_expsyms can be an extended regexp of symbols to exclude
+ # it will be wrapped by ' (' and ')$', so one must not match beginning or
+ # end of line. Example: 'a|bc|.*d.*' will exclude the symbols 'a' and 'bc',
+ # as well as any symbol that contains 'd'.
+ _LT_TAGVAR(exclude_expsyms, $1)=['_GLOBAL_OFFSET_TABLE_|_GLOBAL__F[ID]_.*']
+ # Although _GLOBAL_OFFSET_TABLE_ is a valid symbol C name, most a.out
+ # platforms (ab)use it in PIC code, but their linkers get confused if
+ # the symbol is explicitly referenced. Since portable code cannot
+ # rely on this symbol name, it's probably fine to never include it in
+ # preloaded symbol tables.
+ # Exclude shared library initialization/finalization symbols.
+dnl Note also adjust exclude_expsyms for C++ above.
+ extract_expsyms_cmds=
+
+ case $host_os in
+ cygwin* | mingw* | pw32* | cegcc*)
+ # FIXME: the MSVC++ port hasn't been tested in a loooong time
+ # When not using gcc, we currently assume that we are using
+ # Microsoft Visual C++.
+ if test yes != "$GCC"; then
+ with_gnu_ld=no
+ fi
+ ;;
+ interix*)
+ # we just hope/assume this is gcc and not c89 (= MSVC++)
+ with_gnu_ld=yes
+ ;;
+ openbsd* | bitrig*)
+ with_gnu_ld=no
+ ;;
+ esac
+
+ _LT_TAGVAR(ld_shlibs, $1)=yes
+
+ # On some targets, GNU ld is compatible enough with the native linker
+ # that we're better off using the native interface for both.
+ lt_use_gnu_ld_interface=no
+ if test yes = "$with_gnu_ld"; then
+ case $host_os in
+ aix*)
+ # The AIX port of GNU ld has always aspired to compatibility
+ # with the native linker. However, as the warning in the GNU ld
+ # block says, versions before 2.19.5* couldn't really create working
+ # shared libraries, regardless of the interface used.
+ case `$LD -v 2>&1` in
+ *\ \(GNU\ Binutils\)\ 2.19.5*) ;;
+ *\ \(GNU\ Binutils\)\ 2.[[2-9]]*) ;;
+ *\ \(GNU\ Binutils\)\ [[3-9]]*) ;;
+ *)
+ lt_use_gnu_ld_interface=yes
+ ;;
+ esac
+ ;;
+ *)
+ lt_use_gnu_ld_interface=yes
+ ;;
+ esac
+ fi
+
+ if test yes = "$lt_use_gnu_ld_interface"; then
+ # If archive_cmds runs LD, not CC, wlarc should be empty
+ wlarc='$wl'
+
+ # Set some defaults for GNU ld with shared library support. These
+ # are reset later if shared libraries are not supported. Putting them
+ # here allows them to be overridden if necessary.
+ runpath_var=LD_RUN_PATH
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+ # ancient GNU ld didn't support --whole-archive et. al.
+ if $LD --help 2>&1 | $GREP 'no-whole-archive' > /dev/null; then
+ _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+ else
+ _LT_TAGVAR(whole_archive_flag_spec, $1)=
+ fi
+ supports_anon_versioning=no
+ case `$LD -v | $SED -e 's/([^)]\+)\s\+//' 2>&1` in
+ *GNU\ gold*) supports_anon_versioning=yes ;;
+ *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.10.*) ;; # catch versions < 2.11
+ *\ 2.11.93.0.2\ *) supports_anon_versioning=yes ;; # RH7.3 ...
+ *\ 2.11.92.0.12\ *) supports_anon_versioning=yes ;; # Mandrake 8.2 ...
+ *\ 2.11.*) ;; # other 2.11 versions
+ *) supports_anon_versioning=yes ;;
+ esac
+
+ # See if GNU ld supports shared libraries.
+ case $host_os in
+ aix[[3-9]]*)
+ # On AIX/PPC, the GNU linker is very broken
+ if test ia64 != "$host_cpu"; then
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ cat <<_LT_EOF 1>&2
+
+*** Warning: the GNU linker, at least up to release 2.19, is reported
+*** to be unable to reliably create shared libraries on AIX.
+*** Therefore, libtool is disabling shared libraries support. If you
+*** really care for shared libraries, you may want to install binutils
+*** 2.20 or above, or modify your PATH so that a non-GNU linker is found.
+*** You will then need to restart the configuration process.
+
+_LT_EOF
+ fi
+ ;;
+
+ amigaos*)
+ case $host_cpu in
+ powerpc)
+ # see comment about AmigaOS4 .so support
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)=''
+ ;;
+ m68k)
+ _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+ _LT_TAGVAR(hardcode_minus_L, $1)=yes
+ ;;
+ esac
+ ;;
+
+ beos*)
+ if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+ _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+ # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+ # support --undefined. This deserves some investigation. FIXME
+ _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ else
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ fi
+ ;;
+
+ cygwin* | mingw* | pw32* | cegcc*)
+ # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
+ # as there is no search path for DLLs.
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols'
+ _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+ _LT_TAGVAR(always_export_symbols, $1)=no
+ _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+ _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1 DATA/;s/^.*[[ ]]__nm__\([[^ ]]*\)[[ ]][[^ ]]*/\1 DATA/;/^I[[ ]]/d;/^[[AITW]][[ ]]/s/.* //'\'' | sort | uniq > $export_symbols'
+ _LT_TAGVAR(exclude_expsyms, $1)=['[_]+GLOBAL_OFFSET_TABLE_|[_]+GLOBAL__[FID]_.*|[_]+head_[A-Za-z0-9_]+_dll|[A-Za-z0-9_]+_dll_iname']
+
+ if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+ # If the export-symbols file already is a .def file, use it as
+ # is; otherwise, prepend EXPORTS...
+ _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
+ cp $export_symbols $output_objdir/$soname.def;
+ else
+ echo EXPORTS > $output_objdir/$soname.def;
+ cat $export_symbols >> $output_objdir/$soname.def;
+ fi~
+ $CC -shared $output_objdir/$soname.def $libobjs $deplibs $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+ else
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ fi
+ ;;
+
+ haiku*)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(link_all_deplibs, $1)=yes
+ ;;
+
+ os2*)
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+ _LT_TAGVAR(hardcode_minus_L, $1)=yes
+ _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+ shrext_cmds=.dll
+ _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ prefix_cmds="$SED"~
+ if test EXPORTS = "`$SED 1q $export_symbols`"; then
+ prefix_cmds="$prefix_cmds -e 1d";
+ fi~
+ prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+ cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+ _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+ ;;
+
+ interix[[3-9]]*)
+ _LT_TAGVAR(hardcode_direct, $1)=no
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+ # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+ # Instead, shared libraries are loaded at an image base (0x10000000 by
+ # default) and relocated if they conflict, which is a slow very memory
+ # consuming and fragmenting process. To avoid this, we pick a random,
+ # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+ # time. Moving up from 0x10000000 also allows more sbrk(2) space.
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+ ;;
+
+ gnu* | linux* | tpf* | k*bsd*-gnu | kopensolaris*-gnu)
+ tmp_diet=no
+ if test linux-dietlibc = "$host_os"; then
+ case $cc_basename in
+ diet\ *) tmp_diet=yes;; # linux-dietlibc with static linking (!diet-dyn)
+ esac
+ fi
+ if $LD --help 2>&1 | $EGREP ': supported targets:.* elf' > /dev/null \
+ && test no = "$tmp_diet"
+ then
+ tmp_addflag=' $pic_flag'
+ tmp_sharedflag='-shared'
+ case $cc_basename,$host_cpu in
+ pgcc*) # Portland Group C compiler
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+ tmp_addflag=' $pic_flag'
+ ;;
+ pgf77* | pgf90* | pgf95* | pgfortran*)
+ # Portland Group f77 and f90 compilers
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+ tmp_addflag=' $pic_flag -Mnomain' ;;
+ ecc*,ia64* | icc*,ia64*) # Intel C compiler on ia64
+ tmp_addflag=' -i_dynamic' ;;
+ efc*,ia64* | ifort*,ia64*) # Intel Fortran compiler on ia64
+ tmp_addflag=' -i_dynamic -nofor_main' ;;
+ ifc* | ifort*) # Intel Fortran compiler
+ tmp_addflag=' -nofor_main' ;;
+ lf95*) # Lahey Fortran 8.1
+ _LT_TAGVAR(whole_archive_flag_spec, $1)=
+ tmp_sharedflag='--shared' ;;
+ nagfor*) # NAGFOR 5.3
+ tmp_sharedflag='-Wl,-shared' ;;
+ xl[[cC]]* | bgxl[[cC]]* | mpixl[[cC]]*) # IBM XL C 8.0 on PPC (deal with xlf below)
+ tmp_sharedflag='-qmkshrobj'
+ tmp_addflag= ;;
+ nvcc*) # Cuda Compiler Driver 2.2
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+ _LT_TAGVAR(compiler_needs_object, $1)=yes
+ ;;
+ esac
+ case `$CC -V 2>&1 | sed 5q` in
+ *Sun\ C*) # Sun C 5.9
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+ _LT_TAGVAR(compiler_needs_object, $1)=yes
+ tmp_sharedflag='-G' ;;
+ *Sun\ F*) # Sun Fortran 8.3
+ tmp_sharedflag='-G' ;;
+ esac
+ _LT_TAGVAR(archive_cmds, $1)='$CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+
+ if test yes = "$supports_anon_versioning"; then
+ _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
+ cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+ echo "local: *; };" >> $output_objdir/$libname.ver~
+ $CC '"$tmp_sharedflag""$tmp_addflag"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
+ fi
+
+ case $cc_basename in
+ tcc*)
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='-rdynamic'
+ ;;
+ xlf* | bgf* | bgxlf* | mpixlf*)
+ # IBM XL Fortran 10.1 on PPC cannot create shared libs itself
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='--whole-archive$convenience --no-whole-archive'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+ _LT_TAGVAR(archive_cmds, $1)='$LD -shared $libobjs $deplibs $linker_flags -soname $soname -o $lib'
+ if test yes = "$supports_anon_versioning"; then
+ _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
+ cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+ echo "local: *; };" >> $output_objdir/$libname.ver~
+ $LD -shared $libobjs $deplibs $linker_flags -soname $soname -version-script $output_objdir/$libname.ver -o $lib'
+ fi
+ ;;
+ esac
+ else
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ fi
+ ;;
+
+ netbsd*)
+ if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+ _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable $libobjs $deplibs $linker_flags -o $lib'
+ wlarc=
+ else
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+ fi
+ ;;
+
+ solaris*)
+ if $LD -v 2>&1 | $GREP 'BFD 2\.8' > /dev/null; then
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ cat <<_LT_EOF 1>&2
+
+*** Warning: The releases 2.8.* of the GNU linker cannot reliably
+*** create shared libraries on Solaris systems. Therefore, libtool
+*** is disabling shared libraries support. We urge you to upgrade GNU
+*** binutils to release 2.9.1 or newer. Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+ elif $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+ else
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ fi
+ ;;
+
+ sysv5* | sco3.2v5* | sco5v6* | unixware* | OpenUNIX*)
+ case `$LD -v 2>&1` in
+ *\ [[01]].* | *\ 2.[[0-9]].* | *\ 2.1[[0-5]].*)
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ cat <<_LT_EOF 1>&2
+
+*** Warning: Releases of the GNU linker prior to 2.16.91.0.3 cannot
+*** reliably create shared libraries on SCO systems. Therefore, libtool
+*** is disabling shared libraries support. We urge you to upgrade GNU
+*** binutils to release 2.16.91.0.3 or newer. Another option is to modify
+*** your PATH or compiler configuration so that the native linker is
+*** used, and then restart.
+
+_LT_EOF
+ ;;
+ *)
+ # For security reasons, it is highly recommended that you always
+ # use absolute paths for naming shared libraries, and exclude the
+ # DT_RUNPATH tag from executables and libraries. But doing so
+ # requires that you compile everything twice, which is a pain.
+ if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+ else
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ fi
+ ;;
+ esac
+ ;;
+
+ sunos4*)
+ _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+ wlarc=
+ _LT_TAGVAR(hardcode_direct, $1)=yes
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ ;;
+
+ *)
+ if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+ else
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ fi
+ ;;
+ esac
+
+ if test no = "$_LT_TAGVAR(ld_shlibs, $1)"; then
+ runpath_var=
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)=
+ _LT_TAGVAR(whole_archive_flag_spec, $1)=
+ fi
+ else
+ # PORTME fill in a description of your system's linker (not GNU ld)
+ case $host_os in
+ aix3*)
+ _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+ _LT_TAGVAR(always_export_symbols, $1)=yes
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$LD -o $output_objdir/$soname $libobjs $deplibs $linker_flags -bE:$export_symbols -T512 -H512 -bM:SRE~$AR $AR_FLAGS $lib $output_objdir/$soname'
+ # Note: this linker hardcodes the directories in LIBPATH if there
+ # are no directories specified by -L.
+ _LT_TAGVAR(hardcode_minus_L, $1)=yes
+ if test yes = "$GCC" && test -z "$lt_prog_compiler_static"; then
+ # Neither direct hardcoding nor static linking is supported with a
+ # broken collect2.
+ _LT_TAGVAR(hardcode_direct, $1)=unsupported
+ fi
+ ;;
+
+ aix[[4-9]]*)
+ if test ia64 = "$host_cpu"; then
+ # On IA64, the linker does run time linking by default, so we don't
+ # have to do anything special.
+ aix_use_runtimelinking=no
+ exp_sym_flag='-Bexport'
+ no_entry_flag=
+ else
+ # If we're using GNU nm, then we don't want the "-C" option.
+ # -C means demangle to GNU nm, but means don't demangle to AIX nm.
+ # Without the "-l" option, or with the "-B" option, AIX nm treats
+ # weak defined symbols like other global defined symbols, whereas
+ # GNU nm marks them as "W".
+ # While the 'weak' keyword is ignored in the Export File, we need
+ # it in the Import File for the 'aix-soname' feature, so we have
+ # to replace the "-B" option with "-P" for AIX nm.
+ if $NM -V 2>&1 | $GREP 'GNU' > /dev/null; then
+ _LT_TAGVAR(export_symbols_cmds, $1)='$NM -Bpg $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W")) && ([substr](\$ 3,1,1) != ".")) { if (\$ 2 == "W") { print \$ 3 " weak" } else { print \$ 3 } } }'\'' | sort -u > $export_symbols'
+ else
+ _LT_TAGVAR(export_symbols_cmds, $1)='`func_echo_all $NM | $SED -e '\''s/B\([[^B]]*\)$/P\1/'\''` -PCpgl $libobjs $convenience | awk '\''{ if (((\$ 2 == "T") || (\$ 2 == "D") || (\$ 2 == "B") || (\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) && ([substr](\$ 1,1,1) != ".")) { if ((\$ 2 == "W") || (\$ 2 == "V") || (\$ 2 == "Z")) { print \$ 1 " weak" } else { print \$ 1 } } }'\'' | sort -u > $export_symbols'
+ fi
+ aix_use_runtimelinking=no
+
+ # Test if we are trying to use run time linking or normal
+ # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+ # have runtime linking enabled, and use it for executables.
+ # For shared libraries, we enable/disable runtime linking
+ # depending on the kind of the shared library created -
+ # when "with_aix_soname,aix_use_runtimelinking" is:
+ # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables
+ # "aix,yes" lib.so shared, rtl:yes, for executables
+ # lib.a static archive
+ # "both,no" lib.so.V(shr.o) shared, rtl:yes
+ # lib.a(lib.so.V) shared, rtl:no, for executables
+ # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
+ # lib.a(lib.so.V) shared, rtl:no
+ # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables
+ # lib.a static archive
+ case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
+ for ld_flag in $LDFLAGS; do
+ if (test x-brtl = "x$ld_flag" || test x-Wl,-brtl = "x$ld_flag"); then
+ aix_use_runtimelinking=yes
+ break
+ fi
+ done
+ if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
+ # With aix-soname=svr4, we create the lib.so.V shared archives only,
+ # so we don't have lib.a shared libs to link our executables.
+ # We have to force runtime linking in this case.
+ aix_use_runtimelinking=yes
+ LDFLAGS="$LDFLAGS -Wl,-brtl"
+ fi
+ ;;
+ esac
+
+ exp_sym_flag='-bexport'
+ no_entry_flag='-bnoentry'
+ fi
+
+ # When large executables or shared objects are built, AIX ld can
+ # have problems creating the table of contents. If linking a library
+ # or program results in "error TOC overflow" add -mminimal-toc to
+ # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not
+ # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+ _LT_TAGVAR(archive_cmds, $1)=''
+ _LT_TAGVAR(hardcode_direct, $1)=yes
+ _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+ _LT_TAGVAR(link_all_deplibs, $1)=yes
+ _LT_TAGVAR(file_list_spec, $1)='$wl-f,'
+ case $with_aix_soname,$aix_use_runtimelinking in
+ aix,*) ;; # traditional, no import file
+ svr4,* | *,yes) # use import file
+ # The Import File defines what to hardcode.
+ _LT_TAGVAR(hardcode_direct, $1)=no
+ _LT_TAGVAR(hardcode_direct_absolute, $1)=no
+ ;;
+ esac
+
+ if test yes = "$GCC"; then
+ case $host_os in aix4.[[012]]|aix4.[[012]].*)
+ # We only want to do this on AIX 4.2 and lower, the check
+ # below for broken collect2 doesn't work under 4.3+
+ collect2name=`$CC -print-prog-name=collect2`
+ if test -f "$collect2name" &&
+ strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+ then
+ # We have reworked collect2
+ :
+ else
+ # We have old collect2
+ _LT_TAGVAR(hardcode_direct, $1)=unsupported
+ # It fails to find uninstalled libraries when the uninstalled
+ # path is not listed in the libpath. Setting hardcode_minus_L
+ # to unsupported forces relinking
+ _LT_TAGVAR(hardcode_minus_L, $1)=yes
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=
+ fi
+ ;;
+ esac
+ shared_flag='-shared'
+ if test yes = "$aix_use_runtimelinking"; then
+ shared_flag="$shared_flag "'$wl-G'
+ fi
+ # Need to ensure runtime linking is disabled for the traditional
+ # shared library, or the linker may eventually find shared libraries
+ # /with/ Import File - we do not want to mix them.
+ shared_flag_aix='-shared'
+ shared_flag_svr4='-shared $wl-G'
+ else
+ # not using gcc
+ if test ia64 = "$host_cpu"; then
+ # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+ # chokes on -Wl,-G. The following line is correct:
+ shared_flag='-G'
+ else
+ if test yes = "$aix_use_runtimelinking"; then
+ shared_flag='$wl-G'
+ else
+ shared_flag='$wl-bM:SRE'
+ fi
+ shared_flag_aix='$wl-bM:SRE'
+ shared_flag_svr4='$wl-G'
+ fi
+ fi
+
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall'
+ # It seems that -bexpall does not export symbols beginning with
+ # underscore (_), so it is better to generate a list of symbols to export.
+ _LT_TAGVAR(always_export_symbols, $1)=yes
+ if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
+ # Warning - without using the other runtime loading flags (-brtl),
+ # -berok will link without error, but may produce a broken library.
+ _LT_TAGVAR(allow_undefined_flag, $1)='-berok'
+ # Determine the default libpath from the value encoded in an
+ # empty executable.
+ _LT_SYS_MODULE_PATH_AIX([$1])
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
+ else
+ if test ia64 = "$host_cpu"; then
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib'
+ _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
+ _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
+ else
+ # Determine the default libpath from the value encoded in an
+ # empty executable.
+ _LT_SYS_MODULE_PATH_AIX([$1])
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
+ # Warning - without using the other run time loading flags,
+ # -berok will link without error, but may produce a broken library.
+ _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok'
+ _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok'
+ if test yes = "$with_gnu_ld"; then
+ # We only use this code for GNU lds that support --whole-archive.
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
+ else
+ # Exported symbols can be pulled into shared objects from archives
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
+ fi
+ _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
+ # -brtl affects multiple linker settings, -berok does not and is overridden later
+ compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`'
+ if test svr4 != "$with_aix_soname"; then
+ # This is similar to how AIX traditionally builds its shared libraries.
+ _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
+ fi
+ if test aix != "$with_aix_soname"; then
+ _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
+ else
+ # used by -dlpreopen to get the symbols
+ _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV $output_objdir/$realname.d/$soname $output_objdir'
+ fi
+ _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d'
+ fi
+ fi
+ ;;
+
+ amigaos*)
+ case $host_cpu in
+ powerpc)
+ # see comment about AmigaOS4 .so support
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)=''
+ ;;
+ m68k)
+ _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/a2ixlibrary.data~$ECHO "#define NAME $libname" > $output_objdir/a2ixlibrary.data~$ECHO "#define LIBRARY_ID 1" >> $output_objdir/a2ixlibrary.data~$ECHO "#define VERSION $major" >> $output_objdir/a2ixlibrary.data~$ECHO "#define REVISION $revision" >> $output_objdir/a2ixlibrary.data~$AR $AR_FLAGS $lib $libobjs~$RANLIB $lib~(cd $output_objdir && a2ixlibrary -32)'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+ _LT_TAGVAR(hardcode_minus_L, $1)=yes
+ ;;
+ esac
+ ;;
+
+ bsdi[[45]]*)
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)=-rdynamic
+ ;;
+
+ cygwin* | mingw* | pw32* | cegcc*)
+ # When not using gcc, we currently assume that we are using
+ # Microsoft Visual C++.
+ # hardcode_libdir_flag_spec is actually meaningless, as there is
+ # no search path for DLLs.
+ case $cc_basename in
+ cl*)
+ # Native MSVC
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
+ _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+ _LT_TAGVAR(always_export_symbols, $1)=yes
+ _LT_TAGVAR(file_list_spec, $1)='@'
+ # Tell ltmain to make .lib files, not .a files.
+ libext=lib
+ # Tell ltmain to make .dll files, not .so files.
+ shrext_cmds=.dll
+ # FIXME: Setting linknames here is a bad hack.
+ _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
+ _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
+ cp "$export_symbols" "$output_objdir/$soname.def";
+ echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
+ else
+ $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
+ fi~
+ $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+ linknames='
+ # The linker will not automatically build a static lib if we build a DLL.
+ # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
+ _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+ _LT_TAGVAR(exclude_expsyms, $1)='_NULL_IMPORT_DESCRIPTOR|_IMPORT_DESCRIPTOR_.*'
+ _LT_TAGVAR(export_symbols_cmds, $1)='$NM $libobjs $convenience | $global_symbol_pipe | $SED -e '\''/^[[BCDGRS]][[ ]]/s/.*[[ ]]\([[^ ]]*\)/\1,DATA/'\'' | $SED -e '\''/^[[AITW]][[ ]]/s/.*[[ ]]//'\'' | sort | uniq > $export_symbols'
+ # Don't use ranlib
+ _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib'
+ _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~
+ lt_tool_outputfile="@TOOL_OUTPUT@"~
+ case $lt_outputfile in
+ *.exe|*.EXE) ;;
+ *)
+ lt_outputfile=$lt_outputfile.exe
+ lt_tool_outputfile=$lt_tool_outputfile.exe
+ ;;
+ esac~
+ if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
+ $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+ $RM "$lt_outputfile.manifest";
+ fi'
+ ;;
+ *)
+ # Assume MSVC wrapper
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
+ _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+ # Tell ltmain to make .lib files, not .a files.
+ libext=lib
+ # Tell ltmain to make .dll files, not .so files.
+ shrext_cmds=.dll
+ # FIXME: Setting linknames here is a bad hack.
+ _LT_TAGVAR(archive_cmds, $1)='$CC -o $lib $libobjs $compiler_flags `func_echo_all "$deplibs" | $SED '\''s/ -lc$//'\''` -link -dll~linknames='
+ # The linker will automatically build a .lib file if we build a DLL.
+ _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
+ # FIXME: Should let the user specify the lib program.
+ _LT_TAGVAR(old_archive_cmds, $1)='lib -OUT:$oldlib$oldobjs$old_deplibs'
+ _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+ ;;
+ esac
+ ;;
+
+ darwin* | rhapsody*)
+ _LT_DARWIN_LINKER_FEATURES($1)
+ ;;
+
+ dgux*)
+ _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ ;;
+
+ # FreeBSD 2.2.[012] allows us to include c++rt0.o to get C++ constructor
+ # support. Future versions do this automatically, but an explicit c++rt0.o
+ # does not break anything, and helps significantly (at the cost of a little
+ # extra space).
+ freebsd2.2*)
+ _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags /usr/lib/c++rt0.o'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+ _LT_TAGVAR(hardcode_direct, $1)=yes
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ ;;
+
+ # Unfortunately, older versions of FreeBSD 2 do not have this feature.
+ freebsd2.*)
+ _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags'
+ _LT_TAGVAR(hardcode_direct, $1)=yes
+ _LT_TAGVAR(hardcode_minus_L, $1)=yes
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ ;;
+
+ # FreeBSD 3 and greater uses gcc -shared to do shared libraries.
+ freebsd* | dragonfly*)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+ _LT_TAGVAR(hardcode_direct, $1)=yes
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ ;;
+
+ hpux9*)
+ if test yes = "$GCC"; then
+ _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $libobjs $deplibs $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+ else
+ _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$LD -b +b $install_libdir -o $output_objdir/$soname $libobjs $deplibs $linker_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+ fi
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+ _LT_TAGVAR(hardcode_direct, $1)=yes
+
+ # hardcode_minus_L: Not really in the search PATH,
+ # but as the default location of the library.
+ _LT_TAGVAR(hardcode_minus_L, $1)=yes
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+ ;;
+
+ hpux10*)
+ if test yes,no = "$GCC,$with_gnu_ld"; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+ else
+ _LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'
+ fi
+ if test no = "$with_gnu_ld"; then
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+ _LT_TAGVAR(hardcode_direct, $1)=yes
+ _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+ # hardcode_minus_L: Not really in the search PATH,
+ # but as the default location of the library.
+ _LT_TAGVAR(hardcode_minus_L, $1)=yes
+ fi
+ ;;
+
+ hpux11*)
+ if test yes,no = "$GCC,$with_gnu_ld"; then
+ case $host_cpu in
+ hppa*64*)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ ia64*)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ *)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ esac
+ else
+ case $host_cpu in
+ hppa*64*)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ ia64*)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ *)
+ m4_if($1, [], [
+ # Older versions of the 11.00 compiler do not understand -b yet
+ # (HP92453-01 A.11.01.20 doesn't, HP92453-01 B.11.X.35175-35176.GP does)
+ _LT_LINKER_OPTION([if $CC understands -b],
+ _LT_TAGVAR(lt_cv_prog_compiler__b, $1), [-b],
+ [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'],
+ [_LT_TAGVAR(archive_cmds, $1)='$LD -b +h $soname +b $install_libdir -o $lib $libobjs $deplibs $linker_flags'])],
+ [_LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $libobjs $deplibs $compiler_flags'])
+ ;;
+ esac
+ fi
+ if test no = "$with_gnu_ld"; then
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+ case $host_cpu in
+ hppa*64*|ia64*)
+ _LT_TAGVAR(hardcode_direct, $1)=no
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ ;;
+ *)
+ _LT_TAGVAR(hardcode_direct, $1)=yes
+ _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+
+ # hardcode_minus_L: Not really in the search PATH,
+ # but as the default location of the library.
+ _LT_TAGVAR(hardcode_minus_L, $1)=yes
+ ;;
+ esac
+ fi
+ ;;
+
+ irix5* | irix6* | nonstopux*)
+ if test yes = "$GCC"; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+ # Try to use the -exported_symbol ld option, if it does not
+ # work, assume that -exports_file does not work either and
+ # implicitly export all symbols.
+ # This should be the same for all languages, so no per-tag cache variable.
+ AC_CACHE_CHECK([whether the $host_os linker accepts -exported_symbol],
+ [lt_cv_irix_exported_symbol],
+ [save_LDFLAGS=$LDFLAGS
+ LDFLAGS="$LDFLAGS -shared $wl-exported_symbol ${wl}foo $wl-update_registry $wl/dev/null"
+ AC_LINK_IFELSE(
+ [AC_LANG_SOURCE(
+ [AC_LANG_CASE([C], [[int foo (void) { return 0; }]],
+ [C++], [[int foo (void) { return 0; }]],
+ [Fortran 77], [[
+ subroutine foo
+ end]],
+ [Fortran], [[
+ subroutine foo
+ end]])])],
+ [lt_cv_irix_exported_symbol=yes],
+ [lt_cv_irix_exported_symbol=no])
+ LDFLAGS=$save_LDFLAGS])
+ if test yes = "$lt_cv_irix_exported_symbol"; then
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations $wl-exports_file $wl$export_symbols -o $lib'
+ fi
+ else
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -exports_file $export_symbols -o $lib'
+ fi
+ _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+ _LT_TAGVAR(inherit_rpath, $1)=yes
+ _LT_TAGVAR(link_all_deplibs, $1)=yes
+ ;;
+
+ linux*)
+ case $cc_basename in
+ tcc*)
+ # Fabrice Bellard et al's Tiny C Compiler
+ _LT_TAGVAR(ld_shlibs, $1)=yes
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ esac
+ ;;
+
+ netbsd*)
+ if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+ _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $libobjs $deplibs $linker_flags' # a.out
+ else
+ _LT_TAGVAR(archive_cmds, $1)='$LD -shared -o $lib $libobjs $deplibs $linker_flags' # ELF
+ fi
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+ _LT_TAGVAR(hardcode_direct, $1)=yes
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ ;;
+
+ newsos6)
+ _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ _LT_TAGVAR(hardcode_direct, $1)=yes
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ ;;
+
+ *nto* | *qnx*)
+ ;;
+
+ openbsd* | bitrig*)
+ if test -f /usr/libexec/ld.so; then
+ _LT_TAGVAR(hardcode_direct, $1)=yes
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+ if test -z "`echo __ELF__ | $CC -E - | $GREP __ELF__`"; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags $wl-retain-symbols-file,$export_symbols'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+ else
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+ fi
+ else
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ fi
+ ;;
+
+ os2*)
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+ _LT_TAGVAR(hardcode_minus_L, $1)=yes
+ _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+ shrext_cmds=.dll
+ _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ prefix_cmds="$SED"~
+ if test EXPORTS = "`$SED 1q $export_symbols`"; then
+ prefix_cmds="$prefix_cmds -e 1d";
+ fi~
+ prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+ cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+ _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+ ;;
+
+ osf3*)
+ if test yes = "$GCC"; then
+ _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+ else
+ _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+ fi
+ _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+ ;;
+
+ osf4* | osf5*) # as osf3* with the addition of -msym flag
+ if test yes = "$GCC"; then
+ _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $pic_flag $libobjs $deplibs $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+ else
+ _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $libobjs $deplibs $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done; printf "%s\\n" "-hidden">> $lib.exp~
+ $CC -shared$allow_undefined_flag $wl-input $wl$lib.exp $compiler_flags $libobjs $deplibs -soname $soname `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~$RM $lib.exp'
+
+ # Both c and cxx compiler support -rpath directly
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+ fi
+ _LT_TAGVAR(archive_cmds_need_lc, $1)='no'
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+ ;;
+
+ solaris*)
+ _LT_TAGVAR(no_undefined_flag, $1)=' -z defs'
+ if test yes = "$GCC"; then
+ wlarc='$wl'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $wl-z ${wl}text $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+ $CC -shared $pic_flag $wl-z ${wl}text $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+ else
+ case `$CC -V 2>&1` in
+ *"Compilers 5.0"*)
+ wlarc=''
+ _LT_TAGVAR(archive_cmds, $1)='$LD -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+ $LD -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $linker_flags~$RM $lib.exp'
+ ;;
+ *)
+ wlarc='$wl'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h $soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+ $CC -G$allow_undefined_flag -M $lib.exp -h $soname -o $lib $libobjs $deplibs $compiler_flags~$RM $lib.exp'
+ ;;
+ esac
+ fi
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ case $host_os in
+ solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
+ *)
+ # The compiler driver will combine and reorder linker options,
+ # but understands '-z linker_flag'. GCC discards it without '$wl',
+ # but is careful enough not to reorder.
+ # Supported since Solaris 2.6 (maybe 2.5.1?)
+ if test yes = "$GCC"; then
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
+ else
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
+ fi
+ ;;
+ esac
+ _LT_TAGVAR(link_all_deplibs, $1)=yes
+ ;;
+
+ sunos4*)
+ if test sequent = "$host_vendor"; then
+ # Use $CC to link under sequent, because it throws in some extra .o
+ # files that make .init and .fini sections work.
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h $soname -o $lib $libobjs $deplibs $compiler_flags'
+ else
+ _LT_TAGVAR(archive_cmds, $1)='$LD -assert pure-text -Bstatic -o $lib $libobjs $deplibs $linker_flags'
+ fi
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+ _LT_TAGVAR(hardcode_direct, $1)=yes
+ _LT_TAGVAR(hardcode_minus_L, $1)=yes
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ ;;
+
+ sysv4)
+ case $host_vendor in
+ sni)
+ _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ _LT_TAGVAR(hardcode_direct, $1)=yes # is this really true???
+ ;;
+ siemens)
+ ## LD is ld it makes a PLAMLIB
+ ## CC just makes a GrossModule.
+ _LT_TAGVAR(archive_cmds, $1)='$LD -G -o $lib $libobjs $deplibs $linker_flags'
+ _LT_TAGVAR(reload_cmds, $1)='$CC -r -o $output$reload_objs'
+ _LT_TAGVAR(hardcode_direct, $1)=no
+ ;;
+ motorola)
+ _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ _LT_TAGVAR(hardcode_direct, $1)=no #Motorola manual says yes, but my tests say they lie
+ ;;
+ esac
+ runpath_var='LD_RUN_PATH'
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ ;;
+
+ sysv4.3*)
+ _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='-Bexport'
+ ;;
+
+ sysv4*MP*)
+ if test -d /usr/nec; then
+ _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ runpath_var=LD_RUN_PATH
+ hardcode_runpath_var=yes
+ _LT_TAGVAR(ld_shlibs, $1)=yes
+ fi
+ ;;
+
+ sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
+ _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
+ _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ runpath_var='LD_RUN_PATH'
+
+ if test yes = "$GCC"; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ else
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ fi
+ ;;
+
+ sysv5* | sco3.2v5* | sco5v6*)
+ # Note: We CANNOT use -z defs as we might desire, because we do not
+ # link with -lc, and that would cause any symbols used from libc to
+ # always be unresolved, which means just about no library would
+ # ever link correctly. If we're not using GNU ld we use -z text
+ # though, which does catch some bad symbols but isn't as heavy-handed
+ # as -z defs.
+ _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
+ _LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs'
+ _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir'
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+ _LT_TAGVAR(link_all_deplibs, $1)=yes
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport'
+ runpath_var='LD_RUN_PATH'
+
+ if test yes = "$GCC"; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ else
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ fi
+ ;;
+
+ uts4*)
+ _LT_TAGVAR(archive_cmds, $1)='$LD -G -h $soname -o $lib $libobjs $deplibs $linker_flags'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ ;;
+
+ *)
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+ esac
+
+ if test sni = "$host_vendor"; then
+ case $host in
+ sysv4 | sysv4.2uw2* | sysv4.3* | sysv5*)
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Blargedynsym'
+ ;;
+ esac
+ fi
+ fi
+])
+AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
+test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no
+
+_LT_TAGVAR(with_gnu_ld, $1)=$with_gnu_ld
+
+_LT_DECL([], [libext], [0], [Old archive suffix (normally "a")])dnl
+_LT_DECL([], [shrext_cmds], [1], [Shared library suffix (normally ".so")])dnl
+_LT_DECL([], [extract_expsyms_cmds], [2],
+ [The commands to extract the exported symbol list from a shared archive])
+
+#
+# Do we need to explicitly link libc?
+#
+case "x$_LT_TAGVAR(archive_cmds_need_lc, $1)" in
+x|xyes)
+ # Assume -lc should be added
+ _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+
+ if test yes,yes = "$GCC,$enable_shared"; then
+ case $_LT_TAGVAR(archive_cmds, $1) in
+ *'~'*)
+ # FIXME: we may have to deal with multi-command sequences.
+ ;;
+ '$CC '*)
+ # Test whether the compiler implicitly links with -lc since on some
+ # systems, -lgcc has to come before -lc. If gcc already passes -lc
+ # to ld, don't add -lc before -lgcc.
+ AC_CACHE_CHECK([whether -lc should be explicitly linked in],
+ [lt_cv_]_LT_TAGVAR(archive_cmds_need_lc, $1),
+ [$RM conftest*
+ echo "$lt_simple_compile_test_code" > conftest.$ac_ext
+
+ if AC_TRY_EVAL(ac_compile) 2>conftest.err; then
+ soname=conftest
+ lib=conftest
+ libobjs=conftest.$ac_objext
+ deplibs=
+ wl=$_LT_TAGVAR(lt_prog_compiler_wl, $1)
+ pic_flag=$_LT_TAGVAR(lt_prog_compiler_pic, $1)
+ compiler_flags=-v
+ linker_flags=-v
+ verstring=
+ output_objdir=.
+ libname=conftest
+ lt_save_allow_undefined_flag=$_LT_TAGVAR(allow_undefined_flag, $1)
+ _LT_TAGVAR(allow_undefined_flag, $1)=
+ if AC_TRY_EVAL(_LT_TAGVAR(archive_cmds, $1) 2\>\&1 \| $GREP \" -lc \" \>/dev/null 2\>\&1)
+ then
+ lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+ else
+ lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+ fi
+ _LT_TAGVAR(allow_undefined_flag, $1)=$lt_save_allow_undefined_flag
+ else
+ cat conftest.err 1>&5
+ fi
+ $RM conftest*
+ ])
+ _LT_TAGVAR(archive_cmds_need_lc, $1)=$lt_cv_[]_LT_TAGVAR(archive_cmds_need_lc, $1)
+ ;;
+ esac
+ fi
+ ;;
+esac
+
+_LT_TAGDECL([build_libtool_need_lc], [archive_cmds_need_lc], [0],
+ [Whether or not to add -lc for building shared libraries])
+_LT_TAGDECL([allow_libtool_libs_with_static_runtimes],
+ [enable_shared_with_static_runtimes], [0],
+ [Whether or not to disallow shared libs when runtime libs are static])
+_LT_TAGDECL([], [export_dynamic_flag_spec], [1],
+ [Compiler flag to allow reflexive dlopens])
+_LT_TAGDECL([], [whole_archive_flag_spec], [1],
+ [Compiler flag to generate shared objects directly from archives])
+_LT_TAGDECL([], [compiler_needs_object], [1],
+ [Whether the compiler copes with passing no objects directly])
+_LT_TAGDECL([], [old_archive_from_new_cmds], [2],
+ [Create an old-style archive from a shared archive])
+_LT_TAGDECL([], [old_archive_from_expsyms_cmds], [2],
+ [Create a temporary old-style archive to link instead of a shared archive])
+_LT_TAGDECL([], [archive_cmds], [2], [Commands used to build a shared archive])
+_LT_TAGDECL([], [archive_expsym_cmds], [2])
+_LT_TAGDECL([], [module_cmds], [2],
+ [Commands used to build a loadable module if different from building
+ a shared archive.])
+_LT_TAGDECL([], [module_expsym_cmds], [2])
+_LT_TAGDECL([], [with_gnu_ld], [1],
+ [Whether we are building with GNU ld or not])
+_LT_TAGDECL([], [allow_undefined_flag], [1],
+ [Flag that allows shared libraries with undefined symbols to be built])
+_LT_TAGDECL([], [no_undefined_flag], [1],
+ [Flag that enforces no undefined symbols])
+_LT_TAGDECL([], [hardcode_libdir_flag_spec], [1],
+ [Flag to hardcode $libdir into a binary during linking.
+ This must work even if $libdir does not exist])
+_LT_TAGDECL([], [hardcode_libdir_separator], [1],
+ [Whether we need a single "-rpath" flag with a separated argument])
+_LT_TAGDECL([], [hardcode_direct], [0],
+ [Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
+ DIR into the resulting binary])
+_LT_TAGDECL([], [hardcode_direct_absolute], [0],
+ [Set to "yes" if using DIR/libNAME$shared_ext during linking hardcodes
+ DIR into the resulting binary and the resulting library dependency is
+ "absolute", i.e impossible to change by setting $shlibpath_var if the
+ library is relocated])
+_LT_TAGDECL([], [hardcode_minus_L], [0],
+ [Set to "yes" if using the -LDIR flag during linking hardcodes DIR
+ into the resulting binary])
+_LT_TAGDECL([], [hardcode_shlibpath_var], [0],
+ [Set to "yes" if using SHLIBPATH_VAR=DIR during linking hardcodes DIR
+ into the resulting binary])
+_LT_TAGDECL([], [hardcode_automatic], [0],
+ [Set to "yes" if building a shared library automatically hardcodes DIR
+ into the library and all subsequent libraries and executables linked
+ against it])
+_LT_TAGDECL([], [inherit_rpath], [0],
+ [Set to yes if linker adds runtime paths of dependent libraries
+ to runtime path list])
+_LT_TAGDECL([], [link_all_deplibs], [0],
+ [Whether libtool must link a program against all its dependency libraries])
+_LT_TAGDECL([], [always_export_symbols], [0],
+ [Set to "yes" if exported symbols are required])
+_LT_TAGDECL([], [export_symbols_cmds], [2],
+ [The commands to list exported symbols])
+_LT_TAGDECL([], [exclude_expsyms], [1],
+ [Symbols that should not be listed in the preloaded symbols])
+_LT_TAGDECL([], [include_expsyms], [1],
+ [Symbols that must always be exported])
+_LT_TAGDECL([], [prelink_cmds], [2],
+ [Commands necessary for linking programs (against libraries) with templates])
+_LT_TAGDECL([], [postlink_cmds], [2],
+ [Commands necessary for finishing linking programs])
+_LT_TAGDECL([], [file_list_spec], [1],
+ [Specify filename containing input files])
+dnl FIXME: Not yet implemented
+dnl _LT_TAGDECL([], [thread_safe_flag_spec], [1],
+dnl [Compiler flag to generate thread safe objects])
+])# _LT_LINKER_SHLIBS
+
+
+# _LT_LANG_C_CONFIG([TAG])
+# ------------------------
+# Ensure that the configuration variables for a C compiler are suitably
+# defined. These variables are subsequently used by _LT_CONFIG to write
+# the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_C_CONFIG],
+[m4_require([_LT_DECL_EGREP])dnl
+lt_save_CC=$CC
+AC_LANG_PUSH(C)
+
+# Source file extension for C test sources.
+ac_ext=c
+
+# Object file extension for compiled C test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="int some_variable = 0;"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='int main(){return(0);}'
+
+_LT_TAG_COMPILER
+# Save the default compiler, since it gets overwritten when the other
+# tags are being tested, and _LT_TAGVAR(compiler, []) is a NOP.
+compiler_DEFAULT=$CC
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+ _LT_COMPILER_NO_RTTI($1)
+ _LT_COMPILER_PIC($1)
+ _LT_COMPILER_C_O($1)
+ _LT_COMPILER_FILE_LOCKS($1)
+ _LT_LINKER_SHLIBS($1)
+ _LT_SYS_DYNAMIC_LINKER($1)
+ _LT_LINKER_HARDCODE_LIBPATH($1)
+ LT_SYS_DLOPEN_SELF
+ _LT_CMD_STRIPLIB
+
+ # Report what library types will actually be built
+ AC_MSG_CHECKING([if libtool supports shared libraries])
+ AC_MSG_RESULT([$can_build_shared])
+
+ AC_MSG_CHECKING([whether to build shared libraries])
+ test no = "$can_build_shared" && enable_shared=no
+
+ # On AIX, shared libraries and static libraries use the same namespace, and
+ # are all built from PIC.
+ case $host_os in
+ aix3*)
+ test yes = "$enable_shared" && enable_static=no
+ if test -n "$RANLIB"; then
+ archive_cmds="$archive_cmds~\$RANLIB \$lib"
+ postinstall_cmds='$RANLIB $lib'
+ fi
+ ;;
+
+ aix[[4-9]]*)
+ if test ia64 != "$host_cpu"; then
+ case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
+ yes,aix,yes) ;; # shared object as lib.so file only
+ yes,svr4,*) ;; # shared object as lib.so archive member only
+ yes,*) enable_static=no ;; # shared object in lib.a archive as well
+ esac
+ fi
+ ;;
+ esac
+ AC_MSG_RESULT([$enable_shared])
+
+ AC_MSG_CHECKING([whether to build static libraries])
+ # Make sure either enable_shared or enable_static is yes.
+ test yes = "$enable_shared" || enable_static=yes
+ AC_MSG_RESULT([$enable_static])
+
+ _LT_CONFIG($1)
+fi
+AC_LANG_POP
+CC=$lt_save_CC
+])# _LT_LANG_C_CONFIG
+
+
+# _LT_LANG_CXX_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for a C++ compiler are suitably
+# defined. These variables are subsequently used by _LT_CONFIG to write
+# the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_CXX_CONFIG],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+m4_require([_LT_DECL_EGREP])dnl
+m4_require([_LT_PATH_MANIFEST_TOOL])dnl
+if test -n "$CXX" && ( test no != "$CXX" &&
+ ( (test g++ = "$CXX" && `g++ -v >/dev/null 2>&1` ) ||
+ (test g++ != "$CXX"))); then
+ AC_PROG_CXXCPP
+else
+ _lt_caught_CXX_error=yes
+fi
+
+AC_LANG_PUSH(C++)
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+_LT_TAGVAR(allow_undefined_flag, $1)=
+_LT_TAGVAR(always_export_symbols, $1)=no
+_LT_TAGVAR(archive_expsym_cmds, $1)=
+_LT_TAGVAR(compiler_needs_object, $1)=no
+_LT_TAGVAR(export_dynamic_flag_spec, $1)=
+_LT_TAGVAR(hardcode_direct, $1)=no
+_LT_TAGVAR(hardcode_direct_absolute, $1)=no
+_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+_LT_TAGVAR(hardcode_libdir_separator, $1)=
+_LT_TAGVAR(hardcode_minus_L, $1)=no
+_LT_TAGVAR(hardcode_shlibpath_var, $1)=unsupported
+_LT_TAGVAR(hardcode_automatic, $1)=no
+_LT_TAGVAR(inherit_rpath, $1)=no
+_LT_TAGVAR(module_cmds, $1)=
+_LT_TAGVAR(module_expsym_cmds, $1)=
+_LT_TAGVAR(link_all_deplibs, $1)=unknown
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+_LT_TAGVAR(no_undefined_flag, $1)=
+_LT_TAGVAR(whole_archive_flag_spec, $1)=
+_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+
+# Source file extension for C++ test sources.
+ac_ext=cpp
+
+# Object file extension for compiled C++ test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# No sense in running all these tests if we already determined that
+# the CXX compiler isn't working. Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test yes != "$_lt_caught_CXX_error"; then
+ # Code to be used in simple compile tests
+ lt_simple_compile_test_code="int some_variable = 0;"
+
+ # Code to be used in simple link tests
+ lt_simple_link_test_code='int main(int, char *[[]]) { return(0); }'
+
+ # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+ _LT_TAG_COMPILER
+
+ # save warnings/boilerplate of simple test code
+ _LT_COMPILER_BOILERPLATE
+ _LT_LINKER_BOILERPLATE
+
+ # Allow CC to be a program name with arguments.
+ lt_save_CC=$CC
+ lt_save_CFLAGS=$CFLAGS
+ lt_save_LD=$LD
+ lt_save_GCC=$GCC
+ GCC=$GXX
+ lt_save_with_gnu_ld=$with_gnu_ld
+ lt_save_path_LD=$lt_cv_path_LD
+ if test -n "${lt_cv_prog_gnu_ldcxx+set}"; then
+ lt_cv_prog_gnu_ld=$lt_cv_prog_gnu_ldcxx
+ else
+ $as_unset lt_cv_prog_gnu_ld
+ fi
+ if test -n "${lt_cv_path_LDCXX+set}"; then
+ lt_cv_path_LD=$lt_cv_path_LDCXX
+ else
+ $as_unset lt_cv_path_LD
+ fi
+ test -z "${LDCXX+set}" || LD=$LDCXX
+ CC=${CXX-"c++"}
+ CFLAGS=$CXXFLAGS
+ compiler=$CC
+ _LT_TAGVAR(compiler, $1)=$CC
+ _LT_CC_BASENAME([$compiler])
+
+ if test -n "$compiler"; then
+ # We don't want -fno-exception when compiling C++ code, so set the
+ # no_builtin_flag separately
+ if test yes = "$GXX"; then
+ _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=' -fno-builtin'
+ else
+ _LT_TAGVAR(lt_prog_compiler_no_builtin_flag, $1)=
+ fi
+
+ if test yes = "$GXX"; then
+ # Set up default GNU C++ configuration
+
+ LT_PATH_LD
+
+ # Check if GNU C++ uses GNU ld as the underlying linker, since the
+ # archiving commands below assume that GNU ld is being used.
+ if test yes = "$with_gnu_ld"; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC $pic_flag -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+
+ # If archive_cmds runs LD, not CC, wlarc should be empty
+ # XXX I think wlarc can be eliminated in ltcf-cxx, but I need to
+ # investigate it a little bit more. (MM)
+ wlarc='$wl'
+
+ # ancient GNU ld didn't support --whole-archive et. al.
+ if eval "`$CC -print-prog-name=ld` --help 2>&1" |
+ $GREP 'no-whole-archive' > /dev/null; then
+ _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+ else
+ _LT_TAGVAR(whole_archive_flag_spec, $1)=
+ fi
+ else
+ with_gnu_ld=no
+ wlarc=
+
+ # A generic and very simple default shared library creation
+ # command for GNU C++ for the case where it uses the native
+ # linker, instead of GNU ld. If possible, this setting should
+ # overridden to take advantage of the native linker features on
+ # the platform it is being used on.
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+ fi
+
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+ else
+ GXX=no
+ with_gnu_ld=no
+ wlarc=
+ fi
+
+ # PORTME: fill in a description of your system's C++ link characteristics
+ AC_MSG_CHECKING([whether the $compiler linker ($LD) supports shared libraries])
+ _LT_TAGVAR(ld_shlibs, $1)=yes
+ case $host_os in
+ aix3*)
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+ aix[[4-9]]*)
+ if test ia64 = "$host_cpu"; then
+ # On IA64, the linker does run time linking by default, so we don't
+ # have to do anything special.
+ aix_use_runtimelinking=no
+ exp_sym_flag='-Bexport'
+ no_entry_flag=
+ else
+ aix_use_runtimelinking=no
+
+ # Test if we are trying to use run time linking or normal
+ # AIX style linking. If -brtl is somewhere in LDFLAGS, we
+ # have runtime linking enabled, and use it for executables.
+ # For shared libraries, we enable/disable runtime linking
+ # depending on the kind of the shared library created -
+ # when "with_aix_soname,aix_use_runtimelinking" is:
+ # "aix,no" lib.a(lib.so.V) shared, rtl:no, for executables
+ # "aix,yes" lib.so shared, rtl:yes, for executables
+ # lib.a static archive
+ # "both,no" lib.so.V(shr.o) shared, rtl:yes
+ # lib.a(lib.so.V) shared, rtl:no, for executables
+ # "both,yes" lib.so.V(shr.o) shared, rtl:yes, for executables
+ # lib.a(lib.so.V) shared, rtl:no
+ # "svr4,*" lib.so.V(shr.o) shared, rtl:yes, for executables
+ # lib.a static archive
+ case $host_os in aix4.[[23]]|aix4.[[23]].*|aix[[5-9]]*)
+ for ld_flag in $LDFLAGS; do
+ case $ld_flag in
+ *-brtl*)
+ aix_use_runtimelinking=yes
+ break
+ ;;
+ esac
+ done
+ if test svr4,no = "$with_aix_soname,$aix_use_runtimelinking"; then
+ # With aix-soname=svr4, we create the lib.so.V shared archives only,
+ # so we don't have lib.a shared libs to link our executables.
+ # We have to force runtime linking in this case.
+ aix_use_runtimelinking=yes
+ LDFLAGS="$LDFLAGS -Wl,-brtl"
+ fi
+ ;;
+ esac
+
+ exp_sym_flag='-bexport'
+ no_entry_flag='-bnoentry'
+ fi
+
+ # When large executables or shared objects are built, AIX ld can
+ # have problems creating the table of contents. If linking a library
+ # or program results in "error TOC overflow" add -mminimal-toc to
+ # CXXFLAGS/CFLAGS for g++/gcc. In the cases where that is not
+ # enough to fix the problem, add -Wl,-bbigtoc to LDFLAGS.
+
+ _LT_TAGVAR(archive_cmds, $1)=''
+ _LT_TAGVAR(hardcode_direct, $1)=yes
+ _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+ _LT_TAGVAR(link_all_deplibs, $1)=yes
+ _LT_TAGVAR(file_list_spec, $1)='$wl-f,'
+ case $with_aix_soname,$aix_use_runtimelinking in
+ aix,*) ;; # no import file
+ svr4,* | *,yes) # use import file
+ # The Import File defines what to hardcode.
+ _LT_TAGVAR(hardcode_direct, $1)=no
+ _LT_TAGVAR(hardcode_direct_absolute, $1)=no
+ ;;
+ esac
+
+ if test yes = "$GXX"; then
+ case $host_os in aix4.[[012]]|aix4.[[012]].*)
+ # We only want to do this on AIX 4.2 and lower, the check
+ # below for broken collect2 doesn't work under 4.3+
+ collect2name=`$CC -print-prog-name=collect2`
+ if test -f "$collect2name" &&
+ strings "$collect2name" | $GREP resolve_lib_name >/dev/null
+ then
+ # We have reworked collect2
+ :
+ else
+ # We have old collect2
+ _LT_TAGVAR(hardcode_direct, $1)=unsupported
+ # It fails to find uninstalled libraries when the uninstalled
+ # path is not listed in the libpath. Setting hardcode_minus_L
+ # to unsupported forces relinking
+ _LT_TAGVAR(hardcode_minus_L, $1)=yes
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=
+ fi
+ esac
+ shared_flag='-shared'
+ if test yes = "$aix_use_runtimelinking"; then
+ shared_flag=$shared_flag' $wl-G'
+ fi
+ # Need to ensure runtime linking is disabled for the traditional
+ # shared library, or the linker may eventually find shared libraries
+ # /with/ Import File - we do not want to mix them.
+ shared_flag_aix='-shared'
+ shared_flag_svr4='-shared $wl-G'
+ else
+ # not using gcc
+ if test ia64 = "$host_cpu"; then
+ # VisualAge C++, Version 5.5 for AIX 5L for IA-64, Beta 3 Release
+ # chokes on -Wl,-G. The following line is correct:
+ shared_flag='-G'
+ else
+ if test yes = "$aix_use_runtimelinking"; then
+ shared_flag='$wl-G'
+ else
+ shared_flag='$wl-bM:SRE'
+ fi
+ shared_flag_aix='$wl-bM:SRE'
+ shared_flag_svr4='$wl-G'
+ fi
+ fi
+
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-bexpall'
+ # It seems that -bexpall does not export symbols beginning with
+ # underscore (_), so it is better to generate a list of symbols to
+ # export.
+ _LT_TAGVAR(always_export_symbols, $1)=yes
+ if test aix,yes = "$with_aix_soname,$aix_use_runtimelinking"; then
+ # Warning - without using the other runtime loading flags (-brtl),
+ # -berok will link without error, but may produce a broken library.
+ # The "-G" linker flag allows undefined symbols.
+ _LT_TAGVAR(no_undefined_flag, $1)='-bernotok'
+ # Determine the default libpath from the value encoded in an empty
+ # executable.
+ _LT_SYS_MODULE_PATH_AIX([$1])
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
+
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $deplibs $wl'$no_entry_flag' $compiler_flags `if test -n "$allow_undefined_flag"; then func_echo_all "$wl$allow_undefined_flag"; else :; fi` $wl'$exp_sym_flag:\$export_symbols' '$shared_flag
+ else
+ if test ia64 = "$host_cpu"; then
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $libdir:/usr/lib:/lib'
+ _LT_TAGVAR(allow_undefined_flag, $1)="-z nodefs"
+ _LT_TAGVAR(archive_expsym_cmds, $1)="\$CC $shared_flag"' -o $output_objdir/$soname $libobjs $deplibs '"\$wl$no_entry_flag"' $compiler_flags $wl$allow_undefined_flag '"\$wl$exp_sym_flag:\$export_symbols"
+ else
+ # Determine the default libpath from the value encoded in an
+ # empty executable.
+ _LT_SYS_MODULE_PATH_AIX([$1])
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-blibpath:$libdir:'"$aix_libpath"
+ # Warning - without using the other run time loading flags,
+ # -berok will link without error, but may produce a broken library.
+ _LT_TAGVAR(no_undefined_flag, $1)=' $wl-bernotok'
+ _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-berok'
+ if test yes = "$with_gnu_ld"; then
+ # We only use this code for GNU lds that support --whole-archive.
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
+ else
+ # Exported symbols can be pulled into shared objects from archives
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$convenience'
+ fi
+ _LT_TAGVAR(archive_cmds_need_lc, $1)=yes
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$RM -r $output_objdir/$realname.d~$MKDIR $output_objdir/$realname.d'
+ # -brtl affects multiple linker settings, -berok does not and is overridden later
+ compiler_flags_filtered='`func_echo_all "$compiler_flags " | $SED -e "s%-brtl\\([[, ]]\\)%-berok\\1%g"`'
+ if test svr4 != "$with_aix_soname"; then
+ # This is similar to how AIX traditionally builds its shared
+ # libraries. Need -bnortl late, we may have -brtl in LDFLAGS.
+ _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_aix' -o $output_objdir/$realname.d/$soname $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$AR $AR_FLAGS $output_objdir/$libname$release.a $output_objdir/$realname.d/$soname'
+ fi
+ if test aix != "$with_aix_soname"; then
+ _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$CC '$shared_flag_svr4' -o $output_objdir/$realname.d/$shared_archive_member_spec.o $libobjs $deplibs $wl-bnoentry '$compiler_flags_filtered'$wl-bE:$export_symbols$allow_undefined_flag~$STRIP -e $output_objdir/$realname.d/$shared_archive_member_spec.o~( func_echo_all "#! $soname($shared_archive_member_spec.o)"; if test shr_64 = "$shared_archive_member_spec"; then func_echo_all "# 64"; else func_echo_all "# 32"; fi; cat $export_symbols ) > $output_objdir/$realname.d/$shared_archive_member_spec.imp~$AR $AR_FLAGS $output_objdir/$soname $output_objdir/$realname.d/$shared_archive_member_spec.o $output_objdir/$realname.d/$shared_archive_member_spec.imp'
+ else
+ # used by -dlpreopen to get the symbols
+ _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$MV $output_objdir/$realname.d/$soname $output_objdir'
+ fi
+ _LT_TAGVAR(archive_expsym_cmds, $1)="$_LT_TAGVAR(archive_expsym_cmds, $1)"'~$RM -r $output_objdir/$realname.d'
+ fi
+ fi
+ ;;
+
+ beos*)
+ if $LD --help 2>&1 | $GREP ': supported targets:.* elf' > /dev/null; then
+ _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+ # Joseph Beckenbach <jrb3@best.com> says some releases of gcc
+ # support --undefined. This deserves some investigation. FIXME
+ _LT_TAGVAR(archive_cmds, $1)='$CC -nostart $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ else
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ fi
+ ;;
+
+ chorus*)
+ case $cc_basename in
+ *)
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+ esac
+ ;;
+
+ cygwin* | mingw* | pw32* | cegcc*)
+ case $GXX,$cc_basename in
+ ,cl* | no,cl*)
+ # Native MSVC
+ # hardcode_libdir_flag_spec is actually meaningless, as there is
+ # no search path for DLLs.
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)=' '
+ _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+ _LT_TAGVAR(always_export_symbols, $1)=yes
+ _LT_TAGVAR(file_list_spec, $1)='@'
+ # Tell ltmain to make .lib files, not .a files.
+ libext=lib
+ # Tell ltmain to make .dll files, not .so files.
+ shrext_cmds=.dll
+ # FIXME: Setting linknames here is a bad hack.
+ _LT_TAGVAR(archive_cmds, $1)='$CC -o $output_objdir/$soname $libobjs $compiler_flags $deplibs -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~linknames='
+ _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
+ cp "$export_symbols" "$output_objdir/$soname.def";
+ echo "$tool_output_objdir$soname.def" > "$output_objdir/$soname.exp";
+ else
+ $SED -e '\''s/^/-link -EXPORT:/'\'' < $export_symbols > $output_objdir/$soname.exp;
+ fi~
+ $CC -o $tool_output_objdir$soname $libobjs $compiler_flags $deplibs "@$tool_output_objdir$soname.exp" -Wl,-DLL,-IMPLIB:"$tool_output_objdir$libname.dll.lib"~
+ linknames='
+ # The linker will not automatically build a static lib if we build a DLL.
+ # _LT_TAGVAR(old_archive_from_new_cmds, $1)='true'
+ _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+ # Don't use ranlib
+ _LT_TAGVAR(old_postinstall_cmds, $1)='chmod 644 $oldlib'
+ _LT_TAGVAR(postlink_cmds, $1)='lt_outputfile="@OUTPUT@"~
+ lt_tool_outputfile="@TOOL_OUTPUT@"~
+ case $lt_outputfile in
+ *.exe|*.EXE) ;;
+ *)
+ lt_outputfile=$lt_outputfile.exe
+ lt_tool_outputfile=$lt_tool_outputfile.exe
+ ;;
+ esac~
+ func_to_tool_file "$lt_outputfile"~
+ if test : != "$MANIFEST_TOOL" && test -f "$lt_outputfile.manifest"; then
+ $MANIFEST_TOOL -manifest "$lt_tool_outputfile.manifest" -outputresource:"$lt_tool_outputfile" || exit 1;
+ $RM "$lt_outputfile.manifest";
+ fi'
+ ;;
+ *)
+ # g++
+ # _LT_TAGVAR(hardcode_libdir_flag_spec, $1) is actually meaningless,
+ # as there is no search path for DLLs.
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-all-symbols'
+ _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+ _LT_TAGVAR(always_export_symbols, $1)=no
+ _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+
+ if $LD --help 2>&1 | $GREP 'auto-import' > /dev/null; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+ # If the export-symbols file already is a .def file, use it as
+ # is; otherwise, prepend EXPORTS...
+ _LT_TAGVAR(archive_expsym_cmds, $1)='if _LT_DLL_DEF_P([$export_symbols]); then
+ cp $export_symbols $output_objdir/$soname.def;
+ else
+ echo EXPORTS > $output_objdir/$soname.def;
+ cat $export_symbols >> $output_objdir/$soname.def;
+ fi~
+ $CC -shared -nostdlib $output_objdir/$soname.def $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $output_objdir/$soname $wl--enable-auto-image-base -Xlinker --out-implib -Xlinker $lib'
+ else
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ fi
+ ;;
+ esac
+ ;;
+ darwin* | rhapsody*)
+ _LT_DARWIN_LINKER_FEATURES($1)
+ ;;
+
+ os2*)
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-L$libdir'
+ _LT_TAGVAR(hardcode_minus_L, $1)=yes
+ _LT_TAGVAR(allow_undefined_flag, $1)=unsupported
+ shrext_cmds=.dll
+ _LT_TAGVAR(archive_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ emxexp $libobjs | $SED /"_DLL_InitTerm"/d >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$ECHO "LIBRARY ${soname%$shared_ext} INITINSTANCE TERMINSTANCE" > $output_objdir/$libname.def~
+ $ECHO "DESCRIPTION \"$libname\"" >> $output_objdir/$libname.def~
+ $ECHO "DATA MULTIPLE NONSHARED" >> $output_objdir/$libname.def~
+ $ECHO EXPORTS >> $output_objdir/$libname.def~
+ prefix_cmds="$SED"~
+ if test EXPORTS = "`$SED 1q $export_symbols`"; then
+ prefix_cmds="$prefix_cmds -e 1d";
+ fi~
+ prefix_cmds="$prefix_cmds -e \"s/^\(.*\)$/_\1/g\""~
+ cat $export_symbols | $prefix_cmds >> $output_objdir/$libname.def~
+ $CC -Zdll -Zcrtdll -o $output_objdir/$soname $libobjs $deplibs $compiler_flags $output_objdir/$libname.def~
+ emximp -o $lib $output_objdir/$libname.def'
+ _LT_TAGVAR(old_archive_From_new_cmds, $1)='emximp -o $output_objdir/${libname}_dll.a $output_objdir/$libname.def'
+ _LT_TAGVAR(enable_shared_with_static_runtimes, $1)=yes
+ ;;
+
+ dgux*)
+ case $cc_basename in
+ ec++*)
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+ ghcx*)
+ # Green Hills C++ Compiler
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+ *)
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+ esac
+ ;;
+
+ freebsd2.*)
+ # C++ shared libraries reported to be fairly broken before
+ # switch to ELF
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+
+ freebsd-elf*)
+ _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+ ;;
+
+ freebsd* | dragonfly*)
+ # FreeBSD 3 and later use GNU C++ and GNU ld with standard ELF
+ # conventions
+ _LT_TAGVAR(ld_shlibs, $1)=yes
+ ;;
+
+ haiku*)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(link_all_deplibs, $1)=yes
+ ;;
+
+ hpux9*)
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+ _LT_TAGVAR(hardcode_direct, $1)=yes
+ _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
+ # but as the default
+ # location of the library.
+
+ case $cc_basename in
+ CC*)
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+ aCC*)
+ _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -b $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ #
+ # There doesn't appear to be a way to prevent this compiler from
+ # explicitly linking system object files so we need to strip them
+ # from the output so that they don't get included in the library
+ # dependencies.
+ output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $EGREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+ ;;
+ *)
+ if test yes = "$GXX"; then
+ _LT_TAGVAR(archive_cmds, $1)='$RM $output_objdir/$soname~$CC -shared -nostdlib $pic_flag $wl+b $wl$install_libdir -o $output_objdir/$soname $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~test "x$output_objdir/$soname" = "x$lib" || mv $output_objdir/$soname $lib'
+ else
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ fi
+ ;;
+ esac
+ ;;
+
+ hpux10*|hpux11*)
+ if test no = "$with_gnu_ld"; then
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl+b $wl$libdir'
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+ case $host_cpu in
+ hppa*64*|ia64*)
+ ;;
+ *)
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+ ;;
+ esac
+ fi
+ case $host_cpu in
+ hppa*64*|ia64*)
+ _LT_TAGVAR(hardcode_direct, $1)=no
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ ;;
+ *)
+ _LT_TAGVAR(hardcode_direct, $1)=yes
+ _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+ _LT_TAGVAR(hardcode_minus_L, $1)=yes # Not in the search PATH,
+ # but as the default
+ # location of the library.
+ ;;
+ esac
+
+ case $cc_basename in
+ CC*)
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+ aCC*)
+ case $host_cpu in
+ hppa*64*)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ ;;
+ ia64*)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ ;;
+ *)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -b $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ ;;
+ esac
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ #
+ # There doesn't appear to be a way to prevent this compiler from
+ # explicitly linking system object files so we need to strip them
+ # from the output so that they don't get included in the library
+ # dependencies.
+ output_verbose_link_cmd='templist=`($CC -b $CFLAGS -v conftest.$objext 2>&1) | $GREP "\-L"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+ ;;
+ *)
+ if test yes = "$GXX"; then
+ if test no = "$with_gnu_ld"; then
+ case $host_cpu in
+ hppa*64*)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib -fPIC $wl+h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ ;;
+ ia64*)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+nodefaultrpath -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ ;;
+ *)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $pic_flag $wl+h $wl$soname $wl+b $wl$install_libdir -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ ;;
+ esac
+ fi
+ else
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ fi
+ ;;
+ esac
+ ;;
+
+ interix[[3-9]]*)
+ _LT_TAGVAR(hardcode_direct, $1)=no
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+ # Hack: On Interix 3.x, we cannot compile PIC because of a broken gcc.
+ # Instead, shared libraries are loaded at an image base (0x10000000 by
+ # default) and relocated if they conflict, which is a slow very memory
+ # consuming and fragmenting process. To avoid this, we pick a random,
+ # 256 KiB-aligned image base between 0x50000000 and 0x6FFC0000 at link
+ # time. Moving up from 0x10000000 also allows more sbrk(2) space.
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='sed "s|^|_|" $export_symbols >$output_objdir/$soname.expsym~$CC -shared $pic_flag $libobjs $deplibs $compiler_flags $wl-h,$soname $wl--retain-symbols-file,$output_objdir/$soname.expsym $wl--image-base,`expr ${RANDOM-$$} % 4096 / 2 \* 262144 + 1342177280` -o $lib'
+ ;;
+ irix5* | irix6*)
+ case $cc_basename in
+ CC*)
+ # SGI C++
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared -all -multigot $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+
+ # Archives containing C++ object files must be created using
+ # "CC -ar", where "CC" is the IRIX C++ compiler. This is
+ # necessary to make sure instantiated templates are included
+ # in the archive.
+ _LT_TAGVAR(old_archive_cmds, $1)='$CC -ar -WR,-u -o $oldlib $oldobjs'
+ ;;
+ *)
+ if test yes = "$GXX"; then
+ if test no = "$with_gnu_ld"; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+ else
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` -o $lib'
+ fi
+ fi
+ _LT_TAGVAR(link_all_deplibs, $1)=yes
+ ;;
+ esac
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+ _LT_TAGVAR(inherit_rpath, $1)=yes
+ ;;
+
+ linux* | k*bsd*-gnu | kopensolaris*-gnu | gnu*)
+ case $cc_basename in
+ KCC*)
+ # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+ # KCC will only create a shared library if the output file
+ # ends with ".so" (or ".sl" for HP-UX), so rename the library
+ # to its proper name (with version) after linking.
+ _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo $lib | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib $wl-retain-symbols-file,$export_symbols; mv \$templib $lib'
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ #
+ # There doesn't appear to be a way to prevent this compiler from
+ # explicitly linking system object files so we need to strip them
+ # from the output so that they don't get included in the library
+ # dependencies.
+ output_verbose_link_cmd='templist=`$CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1 | $GREP "ld"`; rm -f libconftest$shared_ext; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+
+ # Archives containing C++ object files must be created using
+ # "CC -Bstatic", where "CC" is the KAI C++ compiler.
+ _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs'
+ ;;
+ icpc* | ecpc* )
+ # Intel C++
+ with_gnu_ld=yes
+ # version 8.0 and above of icpc choke on multiply defined symbols
+ # if we add $predep_objects and $postdep_objects, however 7.1 and
+ # earlier do not add the objects themselves.
+ case `$CC -V 2>&1` in
+ *"Version 7."*)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+ ;;
+ *) # Version 8.0 or newer
+ tmp_idyn=
+ case $host_cpu in
+ ia64*) tmp_idyn=' -i_dynamic';;
+ esac
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared'"$tmp_idyn"' $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+ ;;
+ esac
+ _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive$convenience $wl--no-whole-archive'
+ ;;
+ pgCC* | pgcpp*)
+ # Portland Group C++ compiler
+ case `$CC -V` in
+ *pgCC\ [[1-5]].* | *pgcpp\ [[1-5]].*)
+ _LT_TAGVAR(prelink_cmds, $1)='tpldir=Template.dir~
+ rm -rf $tpldir~
+ $CC --prelink_objects --instantiation_dir $tpldir $objs $libobjs $compile_deplibs~
+ compile_command="$compile_command `find $tpldir -name \*.o | sort | $NL2SP`"'
+ _LT_TAGVAR(old_archive_cmds, $1)='tpldir=Template.dir~
+ rm -rf $tpldir~
+ $CC --prelink_objects --instantiation_dir $tpldir $oldobjs$old_deplibs~
+ $AR $AR_FLAGS $oldlib$oldobjs$old_deplibs `find $tpldir -name \*.o | sort | $NL2SP`~
+ $RANLIB $oldlib'
+ _LT_TAGVAR(archive_cmds, $1)='tpldir=Template.dir~
+ rm -rf $tpldir~
+ $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+ $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='tpldir=Template.dir~
+ rm -rf $tpldir~
+ $CC --prelink_objects --instantiation_dir $tpldir $predep_objects $libobjs $deplibs $convenience $postdep_objects~
+ $CC -shared $pic_flag $predep_objects $libobjs $deplibs `find $tpldir -name \*.o | sort | $NL2SP` $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+ ;;
+ *) # Version 6 and above use weak symbols
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname $wl-retain-symbols-file $wl$export_symbols -o $lib'
+ ;;
+ esac
+
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl--rpath $wl$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`for conv in $convenience\"\"; do test -n \"$conv\" && new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+ ;;
+ cxx*)
+ # Compaq C++
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname -o $lib $wl-retain-symbols-file $wl$export_symbols'
+
+ runpath_var=LD_RUN_PATH
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ #
+ # There doesn't appear to be a way to prevent this compiler from
+ # explicitly linking system object files so we need to strip them
+ # from the output so that they don't get included in the library
+ # dependencies.
+ output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld .*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "X$list" | $Xsed'
+ ;;
+ xl* | mpixl* | bgxl*)
+ # IBM XL 8.0 on PPC, with GNU ld
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl--export-dynamic'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname -o $lib'
+ if test yes = "$supports_anon_versioning"; then
+ _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $output_objdir/$libname.ver~
+ cat $export_symbols | sed -e "s/\(.*\)/\1;/" >> $output_objdir/$libname.ver~
+ echo "local: *; };" >> $output_objdir/$libname.ver~
+ $CC -qmkshrobj $libobjs $deplibs $compiler_flags $wl-soname $wl$soname $wl-version-script $wl$output_objdir/$libname.ver -o $lib'
+ fi
+ ;;
+ *)
+ case `$CC -V 2>&1 | sed 5q` in
+ *Sun\ C*)
+ # Sun C++ 5.9
+ _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file $wl$export_symbols'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl--whole-archive`new_convenience=; for conv in $convenience\"\"; do test -z \"$conv\" || new_convenience=\"$new_convenience,$conv\"; done; func_echo_all \"$new_convenience\"` $wl--no-whole-archive'
+ _LT_TAGVAR(compiler_needs_object, $1)=yes
+
+ # Not sure whether something based on
+ # $CC $CFLAGS -v conftest.$objext -o libconftest$shared_ext 2>&1
+ # would be better.
+ output_verbose_link_cmd='func_echo_all'
+
+ # Archives containing C++ object files must be created using
+ # "CC -xar", where "CC" is the Sun C++ compiler. This is
+ # necessary to make sure instantiated templates are included
+ # in the archive.
+ _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
+ ;;
+ esac
+ ;;
+ esac
+ ;;
+
+ lynxos*)
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+
+ m88k*)
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+
+ mvs*)
+ case $cc_basename in
+ cxx*)
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+ *)
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+ esac
+ ;;
+
+ netbsd*)
+ if echo __ELF__ | $CC -E - | $GREP __ELF__ >/dev/null; then
+ _LT_TAGVAR(archive_cmds, $1)='$LD -Bshareable -o $lib $predep_objects $libobjs $deplibs $postdep_objects $linker_flags'
+ wlarc=
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+ _LT_TAGVAR(hardcode_direct, $1)=yes
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ fi
+ # Workaround some broken pre-1.5 toolchains
+ output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP conftest.$objext | $SED -e "s:-lgcc -lc -lgcc::"'
+ ;;
+
+ *nto* | *qnx*)
+ _LT_TAGVAR(ld_shlibs, $1)=yes
+ ;;
+
+ openbsd* | bitrig*)
+ if test -f /usr/libexec/ld.so; then
+ _LT_TAGVAR(hardcode_direct, $1)=yes
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ _LT_TAGVAR(hardcode_direct_absolute, $1)=yes
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -o $lib'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+ if test -z "`echo __ELF__ | $CC -E - | grep __ELF__`"; then
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $pic_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-retain-symbols-file,$export_symbols -o $lib'
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-E'
+ _LT_TAGVAR(whole_archive_flag_spec, $1)=$wlarc'--whole-archive$convenience '$wlarc'--no-whole-archive'
+ fi
+ output_verbose_link_cmd=func_echo_all
+ else
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ fi
+ ;;
+
+ osf3* | osf4* | osf5*)
+ case $cc_basename in
+ KCC*)
+ # Kuck and Associates, Inc. (KAI) C++ Compiler
+
+ # KCC will only create a shared library if the output file
+ # ends with ".so" (or ".sl" for HP-UX), so rename the library
+ # to its proper name (with version) after linking.
+ _LT_TAGVAR(archive_cmds, $1)='tempext=`echo $shared_ext | $SED -e '\''s/\([[^()0-9A-Za-z{}]]\)/\\\\\1/g'\''`; templib=`echo "$lib" | $SED -e "s/\$tempext\..*/.so/"`; $CC $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags --soname $soname -o \$templib; mv \$templib $lib'
+
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath,$libdir'
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+ # Archives containing C++ object files must be created using
+ # the KAI C++ compiler.
+ case $host in
+ osf3*) _LT_TAGVAR(old_archive_cmds, $1)='$CC -Bstatic -o $oldlib $oldobjs' ;;
+ *) _LT_TAGVAR(old_archive_cmds, $1)='$CC -o $oldlib $oldobjs' ;;
+ esac
+ ;;
+ RCC*)
+ # Rational C++ 2.4.1
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+ cxx*)
+ case $host in
+ osf3*)
+ _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $soname `test -n "$verstring" && func_echo_all "$wl-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+ ;;
+ *)
+ _LT_TAGVAR(allow_undefined_flag, $1)=' -expect_unresolved \*'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname `test -n "$verstring" && func_echo_all "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='for i in `cat $export_symbols`; do printf "%s %s\\n" -exported_symbol "\$i" >> $lib.exp; done~
+ echo "-hidden">> $lib.exp~
+ $CC -shared$allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags -msym -soname $soname $wl-input $wl$lib.exp `test -n "$verstring" && $ECHO "-set_version $verstring"` -update_registry $output_objdir/so_locations -o $lib~
+ $RM $lib.exp'
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-rpath $libdir'
+ ;;
+ esac
+
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ #
+ # There doesn't appear to be a way to prevent this compiler from
+ # explicitly linking system object files so we need to strip them
+ # from the output so that they don't get included in the library
+ # dependencies.
+ output_verbose_link_cmd='templist=`$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP "ld" | $GREP -v "ld:"`; templist=`func_echo_all "$templist" | $SED "s/\(^.*ld.*\)\( .*ld.*$\)/\1/"`; list= ; for z in $templist; do case $z in conftest.$objext) list="$list $z";; *.$objext);; *) list="$list $z";;esac; done; func_echo_all "$list"'
+ ;;
+ *)
+ if test yes,no = "$GXX,$with_gnu_ld"; then
+ _LT_TAGVAR(allow_undefined_flag, $1)=' $wl-expect_unresolved $wl\*'
+ case $host in
+ osf3*)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+ ;;
+ *)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $allow_undefined_flag $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-msym $wl-soname $wl$soname `test -n "$verstring" && func_echo_all "$wl-set_version $wl$verstring"` $wl-update_registry $wl$output_objdir/so_locations -o $lib'
+ ;;
+ esac
+
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-rpath $wl$libdir'
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=:
+
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+
+ else
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ fi
+ ;;
+ esac
+ ;;
+
+ psos*)
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+
+ sunos4*)
+ case $cc_basename in
+ CC*)
+ # Sun C++ 4.x
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+ lcc*)
+ # Lucid
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+ *)
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+ esac
+ ;;
+
+ solaris*)
+ case $cc_basename in
+ CC* | sunCC*)
+ # Sun C++ 4.2, 5.x and Centerline C++
+ _LT_TAGVAR(archive_cmds_need_lc,$1)=yes
+ _LT_TAGVAR(no_undefined_flag, $1)=' -zdefs'
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G$allow_undefined_flag -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+ $CC -G$allow_undefined_flag $wl-M $wl$lib.exp -h$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='-R$libdir'
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ case $host_os in
+ solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
+ *)
+ # The compiler driver will combine and reorder linker options,
+ # but understands '-z linker_flag'.
+ # Supported since Solaris 2.6 (maybe 2.5.1?)
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='-z allextract$convenience -z defaultextract'
+ ;;
+ esac
+ _LT_TAGVAR(link_all_deplibs, $1)=yes
+
+ output_verbose_link_cmd='func_echo_all'
+
+ # Archives containing C++ object files must be created using
+ # "CC -xar", where "CC" is the Sun C++ compiler. This is
+ # necessary to make sure instantiated templates are included
+ # in the archive.
+ _LT_TAGVAR(old_archive_cmds, $1)='$CC -xar -o $oldlib $oldobjs'
+ ;;
+ gcx*)
+ # Green Hills C++ Compiler
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+
+ # The C++ compiler must be used to create the archive.
+ _LT_TAGVAR(old_archive_cmds, $1)='$CC $LDFLAGS -archive -o $oldlib $oldobjs'
+ ;;
+ *)
+ # GNU C++ compiler with Solaris linker
+ if test yes,no = "$GXX,$with_gnu_ld"; then
+ _LT_TAGVAR(no_undefined_flag, $1)=' $wl-z ${wl}defs'
+ if $CC --version | $GREP -v '^2\.7' > /dev/null; then
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $pic_flag -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+ $CC -shared $pic_flag -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ output_verbose_link_cmd='$CC -shared $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+ else
+ # g++ 2.7 appears to require '-G' NOT '-shared' on this
+ # platform.
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G -nostdlib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags $wl-h $wl$soname -o $lib'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='echo "{ global:" > $lib.exp~cat $export_symbols | $SED -e "s/\(.*\)/\1;/" >> $lib.exp~echo "local: *; };" >> $lib.exp~
+ $CC -G -nostdlib $wl-M $wl$lib.exp $wl-h $wl$soname -o $lib $predep_objects $libobjs $deplibs $postdep_objects $compiler_flags~$RM $lib.exp'
+
+ # Commands to make compiler produce verbose output that lists
+ # what "hidden" libraries, object files and flags are used when
+ # linking a shared library.
+ output_verbose_link_cmd='$CC -G $CFLAGS -v conftest.$objext 2>&1 | $GREP -v "^Configured with:" | $GREP "\-L"'
+ fi
+
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R $wl$libdir'
+ case $host_os in
+ solaris2.[[0-5]] | solaris2.[[0-5]].*) ;;
+ *)
+ _LT_TAGVAR(whole_archive_flag_spec, $1)='$wl-z ${wl}allextract$convenience $wl-z ${wl}defaultextract'
+ ;;
+ esac
+ fi
+ ;;
+ esac
+ ;;
+
+ sysv4*uw2* | sysv5OpenUNIX* | sysv5UnixWare7.[[01]].[[10]]* | unixware7* | sco3.2v5.0.[[024]]*)
+ _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
+ _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ runpath_var='LD_RUN_PATH'
+
+ case $cc_basename in
+ CC*)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ *)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ esac
+ ;;
+
+ sysv5* | sco3.2v5* | sco5v6*)
+ # Note: We CANNOT use -z defs as we might desire, because we do not
+ # link with -lc, and that would cause any symbols used from libc to
+ # always be unresolved, which means just about no library would
+ # ever link correctly. If we're not using GNU ld we use -z text
+ # though, which does catch some bad symbols but isn't as heavy-handed
+ # as -z defs.
+ _LT_TAGVAR(no_undefined_flag, $1)='$wl-z,text'
+ _LT_TAGVAR(allow_undefined_flag, $1)='$wl-z,nodefs'
+ _LT_TAGVAR(archive_cmds_need_lc, $1)=no
+ _LT_TAGVAR(hardcode_shlibpath_var, $1)=no
+ _LT_TAGVAR(hardcode_libdir_flag_spec, $1)='$wl-R,$libdir'
+ _LT_TAGVAR(hardcode_libdir_separator, $1)=':'
+ _LT_TAGVAR(link_all_deplibs, $1)=yes
+ _LT_TAGVAR(export_dynamic_flag_spec, $1)='$wl-Bexport'
+ runpath_var='LD_RUN_PATH'
+
+ case $cc_basename in
+ CC*)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -G $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -G $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(old_archive_cmds, $1)='$CC -Tprelink_objects $oldobjs~
+ '"$_LT_TAGVAR(old_archive_cmds, $1)"
+ _LT_TAGVAR(reload_cmds, $1)='$CC -Tprelink_objects $reload_objs~
+ '"$_LT_TAGVAR(reload_cmds, $1)"
+ ;;
+ *)
+ _LT_TAGVAR(archive_cmds, $1)='$CC -shared $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ _LT_TAGVAR(archive_expsym_cmds, $1)='$CC -shared $wl-Bexport:$export_symbols $wl-h,$soname -o $lib $libobjs $deplibs $compiler_flags'
+ ;;
+ esac
+ ;;
+
+ tandem*)
+ case $cc_basename in
+ NCC*)
+ # NonStop-UX NCC 3.20
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+ *)
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+ esac
+ ;;
+
+ vxworks*)
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+
+ *)
+ # FIXME: insert proper C++ library support
+ _LT_TAGVAR(ld_shlibs, $1)=no
+ ;;
+ esac
+
+ AC_MSG_RESULT([$_LT_TAGVAR(ld_shlibs, $1)])
+ test no = "$_LT_TAGVAR(ld_shlibs, $1)" && can_build_shared=no
+
+ _LT_TAGVAR(GCC, $1)=$GXX
+ _LT_TAGVAR(LD, $1)=$LD
+
+ ## CAVEAT EMPTOR:
+ ## There is no encapsulation within the following macros, do not change
+ ## the running order or otherwise move them around unless you know exactly
+ ## what you are doing...
+ _LT_SYS_HIDDEN_LIBDEPS($1)
+ _LT_COMPILER_PIC($1)
+ _LT_COMPILER_C_O($1)
+ _LT_COMPILER_FILE_LOCKS($1)
+ _LT_LINKER_SHLIBS($1)
+ _LT_SYS_DYNAMIC_LINKER($1)
+ _LT_LINKER_HARDCODE_LIBPATH($1)
+
+ _LT_CONFIG($1)
+ fi # test -n "$compiler"
+
+ CC=$lt_save_CC
+ CFLAGS=$lt_save_CFLAGS
+ LDCXX=$LD
+ LD=$lt_save_LD
+ GCC=$lt_save_GCC
+ with_gnu_ld=$lt_save_with_gnu_ld
+ lt_cv_path_LDCXX=$lt_cv_path_LD
+ lt_cv_path_LD=$lt_save_path_LD
+ lt_cv_prog_gnu_ldcxx=$lt_cv_prog_gnu_ld
+ lt_cv_prog_gnu_ld=$lt_save_with_gnu_ld
+fi # test yes != "$_lt_caught_CXX_error"
+
+AC_LANG_POP
+])# _LT_LANG_CXX_CONFIG
+
+
+# _LT_FUNC_STRIPNAME_CNF
+# ----------------------
+# func_stripname_cnf prefix suffix name
+# strip PREFIX and SUFFIX off of NAME.
+# PREFIX and SUFFIX must not contain globbing or regex special
+# characters, hashes, percent signs, but SUFFIX may contain a leading
+# dot (in which case that matches only a dot).
+#
+# This function is identical to the (non-XSI) version of func_stripname,
+# except this one can be used by m4 code that may be executed by configure,
+# rather than the libtool script.
+m4_defun([_LT_FUNC_STRIPNAME_CNF],[dnl
+AC_REQUIRE([_LT_DECL_SED])
+AC_REQUIRE([_LT_PROG_ECHO_BACKSLASH])
+func_stripname_cnf ()
+{
+ case @S|@2 in
+ .*) func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%\\\\@S|@2\$%%"`;;
+ *) func_stripname_result=`$ECHO "@S|@3" | $SED "s%^@S|@1%%; s%@S|@2\$%%"`;;
+ esac
+} # func_stripname_cnf
+])# _LT_FUNC_STRIPNAME_CNF
+
+
+# _LT_SYS_HIDDEN_LIBDEPS([TAGNAME])
+# ---------------------------------
+# Figure out "hidden" library dependencies from verbose
+# compiler output when linking a shared library.
+# Parse the compiler output and extract the necessary
+# objects, libraries and library flags.
+m4_defun([_LT_SYS_HIDDEN_LIBDEPS],
+[m4_require([_LT_FILEUTILS_DEFAULTS])dnl
+AC_REQUIRE([_LT_FUNC_STRIPNAME_CNF])dnl
+# Dependencies to place before and after the object being linked:
+_LT_TAGVAR(predep_objects, $1)=
+_LT_TAGVAR(postdep_objects, $1)=
+_LT_TAGVAR(predeps, $1)=
+_LT_TAGVAR(postdeps, $1)=
+_LT_TAGVAR(compiler_lib_search_path, $1)=
+
+dnl we can't use the lt_simple_compile_test_code here,
+dnl because it contains code intended for an executable,
+dnl not a library. It's possible we should let each
+dnl tag define a new lt_????_link_test_code variable,
+dnl but it's only used here...
+m4_if([$1], [], [cat > conftest.$ac_ext <<_LT_EOF
+int a;
+void foo (void) { a = 0; }
+_LT_EOF
+], [$1], [CXX], [cat > conftest.$ac_ext <<_LT_EOF
+class Foo
+{
+public:
+ Foo (void) { a = 0; }
+private:
+ int a;
+};
+_LT_EOF
+], [$1], [F77], [cat > conftest.$ac_ext <<_LT_EOF
+ subroutine foo
+ implicit none
+ integer*4 a
+ a=0
+ return
+ end
+_LT_EOF
+], [$1], [FC], [cat > conftest.$ac_ext <<_LT_EOF
+ subroutine foo
+ implicit none
+ integer a
+ a=0
+ return
+ end
+_LT_EOF
+], [$1], [GCJ], [cat > conftest.$ac_ext <<_LT_EOF
+public class foo {
+ private int a;
+ public void bar (void) {
+ a = 0;
+ }
+};
+_LT_EOF
+], [$1], [GO], [cat > conftest.$ac_ext <<_LT_EOF
+package foo
+func foo() {
+}
+_LT_EOF
+])
+
+_lt_libdeps_save_CFLAGS=$CFLAGS
+case "$CC $CFLAGS " in #(
+*\ -flto*\ *) CFLAGS="$CFLAGS -fno-lto" ;;
+*\ -fwhopr*\ *) CFLAGS="$CFLAGS -fno-whopr" ;;
+*\ -fuse-linker-plugin*\ *) CFLAGS="$CFLAGS -fno-use-linker-plugin" ;;
+esac
+
+dnl Parse the compiler output and extract the necessary
+dnl objects, libraries and library flags.
+if AC_TRY_EVAL(ac_compile); then
+ # Parse the compiler output and extract the necessary
+ # objects, libraries and library flags.
+
+ # Sentinel used to keep track of whether or not we are before
+ # the conftest object file.
+ pre_test_object_deps_done=no
+
+ for p in `eval "$output_verbose_link_cmd"`; do
+ case $prev$p in
+
+ -L* | -R* | -l*)
+ # Some compilers place space between "-{L,R}" and the path.
+ # Remove the space.
+ if test x-L = "$p" ||
+ test x-R = "$p"; then
+ prev=$p
+ continue
+ fi
+
+ # Expand the sysroot to ease extracting the directories later.
+ if test -z "$prev"; then
+ case $p in
+ -L*) func_stripname_cnf '-L' '' "$p"; prev=-L; p=$func_stripname_result ;;
+ -R*) func_stripname_cnf '-R' '' "$p"; prev=-R; p=$func_stripname_result ;;
+ -l*) func_stripname_cnf '-l' '' "$p"; prev=-l; p=$func_stripname_result ;;
+ esac
+ fi
+ case $p in
+ =*) func_stripname_cnf '=' '' "$p"; p=$lt_sysroot$func_stripname_result ;;
+ esac
+ if test no = "$pre_test_object_deps_done"; then
+ case $prev in
+ -L | -R)
+ # Internal compiler library paths should come after those
+ # provided the user. The postdeps already come after the
+ # user supplied libs so there is no need to process them.
+ if test -z "$_LT_TAGVAR(compiler_lib_search_path, $1)"; then
+ _LT_TAGVAR(compiler_lib_search_path, $1)=$prev$p
+ else
+ _LT_TAGVAR(compiler_lib_search_path, $1)="${_LT_TAGVAR(compiler_lib_search_path, $1)} $prev$p"
+ fi
+ ;;
+ # The "-l" case would never come before the object being
+ # linked, so don't bother handling this case.
+ esac
+ else
+ if test -z "$_LT_TAGVAR(postdeps, $1)"; then
+ _LT_TAGVAR(postdeps, $1)=$prev$p
+ else
+ _LT_TAGVAR(postdeps, $1)="${_LT_TAGVAR(postdeps, $1)} $prev$p"
+ fi
+ fi
+ prev=
+ ;;
+
+ *.lto.$objext) ;; # Ignore GCC LTO objects
+ *.$objext)
+ # This assumes that the test object file only shows up
+ # once in the compiler output.
+ if test "$p" = "conftest.$objext"; then
+ pre_test_object_deps_done=yes
+ continue
+ fi
+
+ if test no = "$pre_test_object_deps_done"; then
+ if test -z "$_LT_TAGVAR(predep_objects, $1)"; then
+ _LT_TAGVAR(predep_objects, $1)=$p
+ else
+ _LT_TAGVAR(predep_objects, $1)="$_LT_TAGVAR(predep_objects, $1) $p"
+ fi
+ else
+ if test -z "$_LT_TAGVAR(postdep_objects, $1)"; then
+ _LT_TAGVAR(postdep_objects, $1)=$p
+ else
+ _LT_TAGVAR(postdep_objects, $1)="$_LT_TAGVAR(postdep_objects, $1) $p"
+ fi
+ fi
+ ;;
+
+ *) ;; # Ignore the rest.
+
+ esac
+ done
+
+ # Clean up.
+ rm -f a.out a.exe
+else
+ echo "libtool.m4: error: problem compiling $1 test program"
+fi
+
+$RM -f confest.$objext
+CFLAGS=$_lt_libdeps_save_CFLAGS
+
+# PORTME: override above test on systems where it is broken
+m4_if([$1], [CXX],
+[case $host_os in
+interix[[3-9]]*)
+ # Interix 3.5 installs completely hosed .la files for C++, so rather than
+ # hack all around it, let's just trust "g++" to DTRT.
+ _LT_TAGVAR(predep_objects,$1)=
+ _LT_TAGVAR(postdep_objects,$1)=
+ _LT_TAGVAR(postdeps,$1)=
+ ;;
+esac
+])
+
+case " $_LT_TAGVAR(postdeps, $1) " in
+*" -lc "*) _LT_TAGVAR(archive_cmds_need_lc, $1)=no ;;
+esac
+ _LT_TAGVAR(compiler_lib_search_dirs, $1)=
+if test -n "${_LT_TAGVAR(compiler_lib_search_path, $1)}"; then
+ _LT_TAGVAR(compiler_lib_search_dirs, $1)=`echo " ${_LT_TAGVAR(compiler_lib_search_path, $1)}" | $SED -e 's! -L! !g' -e 's!^ !!'`
+fi
+_LT_TAGDECL([], [compiler_lib_search_dirs], [1],
+ [The directories searched by this compiler when creating a shared library])
+_LT_TAGDECL([], [predep_objects], [1],
+ [Dependencies to place before and after the objects being linked to
+ create a shared library])
+_LT_TAGDECL([], [postdep_objects], [1])
+_LT_TAGDECL([], [predeps], [1])
+_LT_TAGDECL([], [postdeps], [1])
+_LT_TAGDECL([], [compiler_lib_search_path], [1],
+ [The library search path used internally by the compiler when linking
+ a shared library])
+])# _LT_SYS_HIDDEN_LIBDEPS
+
+
+# _LT_LANG_F77_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for a Fortran 77 compiler are
+# suitably defined. These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_F77_CONFIG],
+[AC_LANG_PUSH(Fortran 77)
+if test -z "$F77" || test no = "$F77"; then
+ _lt_disable_F77=yes
+fi
+
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+_LT_TAGVAR(allow_undefined_flag, $1)=
+_LT_TAGVAR(always_export_symbols, $1)=no
+_LT_TAGVAR(archive_expsym_cmds, $1)=
+_LT_TAGVAR(export_dynamic_flag_spec, $1)=
+_LT_TAGVAR(hardcode_direct, $1)=no
+_LT_TAGVAR(hardcode_direct_absolute, $1)=no
+_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+_LT_TAGVAR(hardcode_libdir_separator, $1)=
+_LT_TAGVAR(hardcode_minus_L, $1)=no
+_LT_TAGVAR(hardcode_automatic, $1)=no
+_LT_TAGVAR(inherit_rpath, $1)=no
+_LT_TAGVAR(module_cmds, $1)=
+_LT_TAGVAR(module_expsym_cmds, $1)=
+_LT_TAGVAR(link_all_deplibs, $1)=unknown
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+_LT_TAGVAR(no_undefined_flag, $1)=
+_LT_TAGVAR(whole_archive_flag_spec, $1)=
+_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+
+# Source file extension for f77 test sources.
+ac_ext=f
+
+# Object file extension for compiled f77 test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# No sense in running all these tests if we already determined that
+# the F77 compiler isn't working. Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test yes != "$_lt_disable_F77"; then
+ # Code to be used in simple compile tests
+ lt_simple_compile_test_code="\
+ subroutine t
+ return
+ end
+"
+
+ # Code to be used in simple link tests
+ lt_simple_link_test_code="\
+ program t
+ end
+"
+
+ # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+ _LT_TAG_COMPILER
+
+ # save warnings/boilerplate of simple test code
+ _LT_COMPILER_BOILERPLATE
+ _LT_LINKER_BOILERPLATE
+
+ # Allow CC to be a program name with arguments.
+ lt_save_CC=$CC
+ lt_save_GCC=$GCC
+ lt_save_CFLAGS=$CFLAGS
+ CC=${F77-"f77"}
+ CFLAGS=$FFLAGS
+ compiler=$CC
+ _LT_TAGVAR(compiler, $1)=$CC
+ _LT_CC_BASENAME([$compiler])
+ GCC=$G77
+ if test -n "$compiler"; then
+ AC_MSG_CHECKING([if libtool supports shared libraries])
+ AC_MSG_RESULT([$can_build_shared])
+
+ AC_MSG_CHECKING([whether to build shared libraries])
+ test no = "$can_build_shared" && enable_shared=no
+
+ # On AIX, shared libraries and static libraries use the same namespace, and
+ # are all built from PIC.
+ case $host_os in
+ aix3*)
+ test yes = "$enable_shared" && enable_static=no
+ if test -n "$RANLIB"; then
+ archive_cmds="$archive_cmds~\$RANLIB \$lib"
+ postinstall_cmds='$RANLIB $lib'
+ fi
+ ;;
+ aix[[4-9]]*)
+ if test ia64 != "$host_cpu"; then
+ case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
+ yes,aix,yes) ;; # shared object as lib.so file only
+ yes,svr4,*) ;; # shared object as lib.so archive member only
+ yes,*) enable_static=no ;; # shared object in lib.a archive as well
+ esac
+ fi
+ ;;
+ esac
+ AC_MSG_RESULT([$enable_shared])
+
+ AC_MSG_CHECKING([whether to build static libraries])
+ # Make sure either enable_shared or enable_static is yes.
+ test yes = "$enable_shared" || enable_static=yes
+ AC_MSG_RESULT([$enable_static])
+
+ _LT_TAGVAR(GCC, $1)=$G77
+ _LT_TAGVAR(LD, $1)=$LD
+
+ ## CAVEAT EMPTOR:
+ ## There is no encapsulation within the following macros, do not change
+ ## the running order or otherwise move them around unless you know exactly
+ ## what you are doing...
+ _LT_COMPILER_PIC($1)
+ _LT_COMPILER_C_O($1)
+ _LT_COMPILER_FILE_LOCKS($1)
+ _LT_LINKER_SHLIBS($1)
+ _LT_SYS_DYNAMIC_LINKER($1)
+ _LT_LINKER_HARDCODE_LIBPATH($1)
+
+ _LT_CONFIG($1)
+ fi # test -n "$compiler"
+
+ GCC=$lt_save_GCC
+ CC=$lt_save_CC
+ CFLAGS=$lt_save_CFLAGS
+fi # test yes != "$_lt_disable_F77"
+
+AC_LANG_POP
+])# _LT_LANG_F77_CONFIG
+
+
+# _LT_LANG_FC_CONFIG([TAG])
+# -------------------------
+# Ensure that the configuration variables for a Fortran compiler are
+# suitably defined. These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_FC_CONFIG],
+[AC_LANG_PUSH(Fortran)
+
+if test -z "$FC" || test no = "$FC"; then
+ _lt_disable_FC=yes
+fi
+
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+_LT_TAGVAR(allow_undefined_flag, $1)=
+_LT_TAGVAR(always_export_symbols, $1)=no
+_LT_TAGVAR(archive_expsym_cmds, $1)=
+_LT_TAGVAR(export_dynamic_flag_spec, $1)=
+_LT_TAGVAR(hardcode_direct, $1)=no
+_LT_TAGVAR(hardcode_direct_absolute, $1)=no
+_LT_TAGVAR(hardcode_libdir_flag_spec, $1)=
+_LT_TAGVAR(hardcode_libdir_separator, $1)=
+_LT_TAGVAR(hardcode_minus_L, $1)=no
+_LT_TAGVAR(hardcode_automatic, $1)=no
+_LT_TAGVAR(inherit_rpath, $1)=no
+_LT_TAGVAR(module_cmds, $1)=
+_LT_TAGVAR(module_expsym_cmds, $1)=
+_LT_TAGVAR(link_all_deplibs, $1)=unknown
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+_LT_TAGVAR(no_undefined_flag, $1)=
+_LT_TAGVAR(whole_archive_flag_spec, $1)=
+_LT_TAGVAR(enable_shared_with_static_runtimes, $1)=no
+
+# Source file extension for fc test sources.
+ac_ext=${ac_fc_srcext-f}
+
+# Object file extension for compiled fc test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# No sense in running all these tests if we already determined that
+# the FC compiler isn't working. Some variables (like enable_shared)
+# are currently assumed to apply to all compilers on this platform,
+# and will be corrupted by setting them based on a non-working compiler.
+if test yes != "$_lt_disable_FC"; then
+ # Code to be used in simple compile tests
+ lt_simple_compile_test_code="\
+ subroutine t
+ return
+ end
+"
+
+ # Code to be used in simple link tests
+ lt_simple_link_test_code="\
+ program t
+ end
+"
+
+ # ltmain only uses $CC for tagged configurations so make sure $CC is set.
+ _LT_TAG_COMPILER
+
+ # save warnings/boilerplate of simple test code
+ _LT_COMPILER_BOILERPLATE
+ _LT_LINKER_BOILERPLATE
+
+ # Allow CC to be a program name with arguments.
+ lt_save_CC=$CC
+ lt_save_GCC=$GCC
+ lt_save_CFLAGS=$CFLAGS
+ CC=${FC-"f95"}
+ CFLAGS=$FCFLAGS
+ compiler=$CC
+ GCC=$ac_cv_fc_compiler_gnu
+
+ _LT_TAGVAR(compiler, $1)=$CC
+ _LT_CC_BASENAME([$compiler])
+
+ if test -n "$compiler"; then
+ AC_MSG_CHECKING([if libtool supports shared libraries])
+ AC_MSG_RESULT([$can_build_shared])
+
+ AC_MSG_CHECKING([whether to build shared libraries])
+ test no = "$can_build_shared" && enable_shared=no
+
+ # On AIX, shared libraries and static libraries use the same namespace, and
+ # are all built from PIC.
+ case $host_os in
+ aix3*)
+ test yes = "$enable_shared" && enable_static=no
+ if test -n "$RANLIB"; then
+ archive_cmds="$archive_cmds~\$RANLIB \$lib"
+ postinstall_cmds='$RANLIB $lib'
+ fi
+ ;;
+ aix[[4-9]]*)
+ if test ia64 != "$host_cpu"; then
+ case $enable_shared,$with_aix_soname,$aix_use_runtimelinking in
+ yes,aix,yes) ;; # shared object as lib.so file only
+ yes,svr4,*) ;; # shared object as lib.so archive member only
+ yes,*) enable_static=no ;; # shared object in lib.a archive as well
+ esac
+ fi
+ ;;
+ esac
+ AC_MSG_RESULT([$enable_shared])
+
+ AC_MSG_CHECKING([whether to build static libraries])
+ # Make sure either enable_shared or enable_static is yes.
+ test yes = "$enable_shared" || enable_static=yes
+ AC_MSG_RESULT([$enable_static])
+
+ _LT_TAGVAR(GCC, $1)=$ac_cv_fc_compiler_gnu
+ _LT_TAGVAR(LD, $1)=$LD
+
+ ## CAVEAT EMPTOR:
+ ## There is no encapsulation within the following macros, do not change
+ ## the running order or otherwise move them around unless you know exactly
+ ## what you are doing...
+ _LT_SYS_HIDDEN_LIBDEPS($1)
+ _LT_COMPILER_PIC($1)
+ _LT_COMPILER_C_O($1)
+ _LT_COMPILER_FILE_LOCKS($1)
+ _LT_LINKER_SHLIBS($1)
+ _LT_SYS_DYNAMIC_LINKER($1)
+ _LT_LINKER_HARDCODE_LIBPATH($1)
+
+ _LT_CONFIG($1)
+ fi # test -n "$compiler"
+
+ GCC=$lt_save_GCC
+ CC=$lt_save_CC
+ CFLAGS=$lt_save_CFLAGS
+fi # test yes != "$_lt_disable_FC"
+
+AC_LANG_POP
+])# _LT_LANG_FC_CONFIG
+
+
+# _LT_LANG_GCJ_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for the GNU Java Compiler compiler
+# are suitably defined. These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_GCJ_CONFIG],
+[AC_REQUIRE([LT_PROG_GCJ])dnl
+AC_LANG_SAVE
+
+# Source file extension for Java test sources.
+ac_ext=java
+
+# Object file extension for compiled Java test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="class foo {}"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='public class conftest { public static void main(String[[]] argv) {}; }'
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_TAG_COMPILER
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+# Allow CC to be a program name with arguments.
+lt_save_CC=$CC
+lt_save_CFLAGS=$CFLAGS
+lt_save_GCC=$GCC
+GCC=yes
+CC=${GCJ-"gcj"}
+CFLAGS=$GCJFLAGS
+compiler=$CC
+_LT_TAGVAR(compiler, $1)=$CC
+_LT_TAGVAR(LD, $1)=$LD
+_LT_CC_BASENAME([$compiler])
+
+# GCJ did not exist at the time GCC didn't implicitly link libc in.
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+ _LT_COMPILER_NO_RTTI($1)
+ _LT_COMPILER_PIC($1)
+ _LT_COMPILER_C_O($1)
+ _LT_COMPILER_FILE_LOCKS($1)
+ _LT_LINKER_SHLIBS($1)
+ _LT_LINKER_HARDCODE_LIBPATH($1)
+
+ _LT_CONFIG($1)
+fi
+
+AC_LANG_RESTORE
+
+GCC=$lt_save_GCC
+CC=$lt_save_CC
+CFLAGS=$lt_save_CFLAGS
+])# _LT_LANG_GCJ_CONFIG
+
+
+# _LT_LANG_GO_CONFIG([TAG])
+# --------------------------
+# Ensure that the configuration variables for the GNU Go compiler
+# are suitably defined. These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_GO_CONFIG],
+[AC_REQUIRE([LT_PROG_GO])dnl
+AC_LANG_SAVE
+
+# Source file extension for Go test sources.
+ac_ext=go
+
+# Object file extension for compiled Go test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code="package main; func main() { }"
+
+# Code to be used in simple link tests
+lt_simple_link_test_code='package main; func main() { }'
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_TAG_COMPILER
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+# Allow CC to be a program name with arguments.
+lt_save_CC=$CC
+lt_save_CFLAGS=$CFLAGS
+lt_save_GCC=$GCC
+GCC=yes
+CC=${GOC-"gccgo"}
+CFLAGS=$GOFLAGS
+compiler=$CC
+_LT_TAGVAR(compiler, $1)=$CC
+_LT_TAGVAR(LD, $1)=$LD
+_LT_CC_BASENAME([$compiler])
+
+# Go did not exist at the time GCC didn't implicitly link libc in.
+_LT_TAGVAR(archive_cmds_need_lc, $1)=no
+
+_LT_TAGVAR(old_archive_cmds, $1)=$old_archive_cmds
+_LT_TAGVAR(reload_flag, $1)=$reload_flag
+_LT_TAGVAR(reload_cmds, $1)=$reload_cmds
+
+## CAVEAT EMPTOR:
+## There is no encapsulation within the following macros, do not change
+## the running order or otherwise move them around unless you know exactly
+## what you are doing...
+if test -n "$compiler"; then
+ _LT_COMPILER_NO_RTTI($1)
+ _LT_COMPILER_PIC($1)
+ _LT_COMPILER_C_O($1)
+ _LT_COMPILER_FILE_LOCKS($1)
+ _LT_LINKER_SHLIBS($1)
+ _LT_LINKER_HARDCODE_LIBPATH($1)
+
+ _LT_CONFIG($1)
+fi
+
+AC_LANG_RESTORE
+
+GCC=$lt_save_GCC
+CC=$lt_save_CC
+CFLAGS=$lt_save_CFLAGS
+])# _LT_LANG_GO_CONFIG
+
+
+# _LT_LANG_RC_CONFIG([TAG])
+# -------------------------
+# Ensure that the configuration variables for the Windows resource compiler
+# are suitably defined. These variables are subsequently used by _LT_CONFIG
+# to write the compiler configuration to 'libtool'.
+m4_defun([_LT_LANG_RC_CONFIG],
+[AC_REQUIRE([LT_PROG_RC])dnl
+AC_LANG_SAVE
+
+# Source file extension for RC test sources.
+ac_ext=rc
+
+# Object file extension for compiled RC test sources.
+objext=o
+_LT_TAGVAR(objext, $1)=$objext
+
+# Code to be used in simple compile tests
+lt_simple_compile_test_code='sample MENU { MENUITEM "&Soup", 100, CHECKED }'
+
+# Code to be used in simple link tests
+lt_simple_link_test_code=$lt_simple_compile_test_code
+
+# ltmain only uses $CC for tagged configurations so make sure $CC is set.
+_LT_TAG_COMPILER
+
+# save warnings/boilerplate of simple test code
+_LT_COMPILER_BOILERPLATE
+_LT_LINKER_BOILERPLATE
+
+# Allow CC to be a program name with arguments.
+lt_save_CC=$CC
+lt_save_CFLAGS=$CFLAGS
+lt_save_GCC=$GCC
+GCC=
+CC=${RC-"windres"}
+CFLAGS=
+compiler=$CC
+_LT_TAGVAR(compiler, $1)=$CC
+_LT_CC_BASENAME([$compiler])
+_LT_TAGVAR(lt_cv_prog_compiler_c_o, $1)=yes
+
+if test -n "$compiler"; then
+ :
+ _LT_CONFIG($1)
+fi
+
+GCC=$lt_save_GCC
+AC_LANG_RESTORE
+CC=$lt_save_CC
+CFLAGS=$lt_save_CFLAGS
+])# _LT_LANG_RC_CONFIG
+
+
+# LT_PROG_GCJ
+# -----------
+AC_DEFUN([LT_PROG_GCJ],
+[m4_ifdef([AC_PROG_GCJ], [AC_PROG_GCJ],
+ [m4_ifdef([A][M_PROG_GCJ], [A][M_PROG_GCJ],
+ [AC_CHECK_TOOL(GCJ, gcj,)
+ test set = "${GCJFLAGS+set}" || GCJFLAGS="-g -O2"
+ AC_SUBST(GCJFLAGS)])])[]dnl
+])
+
+# Old name:
+AU_ALIAS([LT_AC_PROG_GCJ], [LT_PROG_GCJ])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([LT_AC_PROG_GCJ], [])
+
+
+# LT_PROG_GO
+# ----------
+AC_DEFUN([LT_PROG_GO],
+[AC_CHECK_TOOL(GOC, gccgo,)
+])
+
+
+# LT_PROG_RC
+# ----------
+AC_DEFUN([LT_PROG_RC],
+[AC_CHECK_TOOL(RC, windres,)
+])
+
+# Old name:
+AU_ALIAS([LT_AC_PROG_RC], [LT_PROG_RC])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([LT_AC_PROG_RC], [])
+
+
+# _LT_DECL_EGREP
+# --------------
+# If we don't have a new enough Autoconf to choose the best grep
+# available, choose the one first in the user's PATH.
+m4_defun([_LT_DECL_EGREP],
+[AC_REQUIRE([AC_PROG_EGREP])dnl
+AC_REQUIRE([AC_PROG_FGREP])dnl
+test -z "$GREP" && GREP=grep
+_LT_DECL([], [GREP], [1], [A grep program that handles long lines])
+_LT_DECL([], [EGREP], [1], [An ERE matcher])
+_LT_DECL([], [FGREP], [1], [A literal string matcher])
+dnl Non-bleeding-edge autoconf doesn't subst GREP, so do it here too
+AC_SUBST([GREP])
+])
+
+
+# _LT_DECL_OBJDUMP
+# --------------
+# If we don't have a new enough Autoconf to choose the best objdump
+# available, choose the one first in the user's PATH.
+m4_defun([_LT_DECL_OBJDUMP],
+[AC_CHECK_TOOL(OBJDUMP, objdump, false)
+test -z "$OBJDUMP" && OBJDUMP=objdump
+_LT_DECL([], [OBJDUMP], [1], [An object symbol dumper])
+AC_SUBST([OBJDUMP])
+])
+
+# _LT_DECL_DLLTOOL
+# ----------------
+# Ensure DLLTOOL variable is set.
+m4_defun([_LT_DECL_DLLTOOL],
+[AC_CHECK_TOOL(DLLTOOL, dlltool, false)
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+_LT_DECL([], [DLLTOOL], [1], [DLL creation program])
+AC_SUBST([DLLTOOL])
+])
+
+# _LT_DECL_SED
+# ------------
+# Check for a fully-functional sed program, that truncates
+# as few characters as possible. Prefer GNU sed if found.
+m4_defun([_LT_DECL_SED],
+[AC_PROG_SED
+test -z "$SED" && SED=sed
+Xsed="$SED -e 1s/^X//"
+_LT_DECL([], [SED], [1], [A sed program that does not truncate output])
+_LT_DECL([], [Xsed], ["\$SED -e 1s/^X//"],
+ [Sed that helps us avoid accidentally triggering echo(1) options like -n])
+])# _LT_DECL_SED
+
+m4_ifndef([AC_PROG_SED], [
+############################################################
+# NOTE: This macro has been submitted for inclusion into #
+# GNU Autoconf as AC_PROG_SED. When it is available in #
+# a released version of Autoconf we should remove this #
+# macro and use it instead. #
+############################################################
+
+m4_defun([AC_PROG_SED],
+[AC_MSG_CHECKING([for a sed that does not truncate output])
+AC_CACHE_VAL(lt_cv_path_SED,
+[# Loop through the user's path and test for sed and gsed.
+# Then use that list of sed's as ones to test for truncation.
+as_save_IFS=$IFS; IFS=$PATH_SEPARATOR
+for as_dir in $PATH
+do
+ IFS=$as_save_IFS
+ test -z "$as_dir" && as_dir=.
+ for lt_ac_prog in sed gsed; do
+ for ac_exec_ext in '' $ac_executable_extensions; do
+ if $as_executable_p "$as_dir/$lt_ac_prog$ac_exec_ext"; then
+ lt_ac_sed_list="$lt_ac_sed_list $as_dir/$lt_ac_prog$ac_exec_ext"
+ fi
+ done
+ done
+done
+IFS=$as_save_IFS
+lt_ac_max=0
+lt_ac_count=0
+# Add /usr/xpg4/bin/sed as it is typically found on Solaris
+# along with /bin/sed that truncates output.
+for lt_ac_sed in $lt_ac_sed_list /usr/xpg4/bin/sed; do
+ test ! -f "$lt_ac_sed" && continue
+ cat /dev/null > conftest.in
+ lt_ac_count=0
+ echo $ECHO_N "0123456789$ECHO_C" >conftest.in
+ # Check for GNU sed and select it if it is found.
+ if "$lt_ac_sed" --version 2>&1 < /dev/null | grep 'GNU' > /dev/null; then
+ lt_cv_path_SED=$lt_ac_sed
+ break
+ fi
+ while true; do
+ cat conftest.in conftest.in >conftest.tmp
+ mv conftest.tmp conftest.in
+ cp conftest.in conftest.nl
+ echo >>conftest.nl
+ $lt_ac_sed -e 's/a$//' < conftest.nl >conftest.out || break
+ cmp -s conftest.out conftest.nl || break
+ # 10000 chars as input seems more than enough
+ test 10 -lt "$lt_ac_count" && break
+ lt_ac_count=`expr $lt_ac_count + 1`
+ if test "$lt_ac_count" -gt "$lt_ac_max"; then
+ lt_ac_max=$lt_ac_count
+ lt_cv_path_SED=$lt_ac_sed
+ fi
+ done
+done
+])
+SED=$lt_cv_path_SED
+AC_SUBST([SED])
+AC_MSG_RESULT([$SED])
+])#AC_PROG_SED
+])#m4_ifndef
+
+# Old name:
+AU_ALIAS([LT_AC_PROG_SED], [AC_PROG_SED])
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([LT_AC_PROG_SED], [])
+
+
+# _LT_CHECK_SHELL_FEATURES
+# ------------------------
+# Find out whether the shell is Bourne or XSI compatible,
+# or has some other useful features.
+m4_defun([_LT_CHECK_SHELL_FEATURES],
+[if ( (MAIL=60; unset MAIL) || exit) >/dev/null 2>&1; then
+ lt_unset=unset
+else
+ lt_unset=false
+fi
+_LT_DECL([], [lt_unset], [0], [whether the shell understands "unset"])dnl
+
+# test EBCDIC or ASCII
+case `echo X|tr X '\101'` in
+ A) # ASCII based system
+ # \n is not interpreted correctly by Solaris 8 /usr/ucb/tr
+ lt_SP2NL='tr \040 \012'
+ lt_NL2SP='tr \015\012 \040\040'
+ ;;
+ *) # EBCDIC based system
+ lt_SP2NL='tr \100 \n'
+ lt_NL2SP='tr \r\n \100\100'
+ ;;
+esac
+_LT_DECL([SP2NL], [lt_SP2NL], [1], [turn spaces into newlines])dnl
+_LT_DECL([NL2SP], [lt_NL2SP], [1], [turn newlines into spaces])dnl
+])# _LT_CHECK_SHELL_FEATURES
+
+
+# _LT_PATH_CONVERSION_FUNCTIONS
+# -----------------------------
+# Determine what file name conversion functions should be used by
+# func_to_host_file (and, implicitly, by func_to_host_path). These are needed
+# for certain cross-compile configurations and native mingw.
+m4_defun([_LT_PATH_CONVERSION_FUNCTIONS],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+AC_REQUIRE([AC_CANONICAL_BUILD])dnl
+AC_MSG_CHECKING([how to convert $build file names to $host format])
+AC_CACHE_VAL(lt_cv_to_host_file_cmd,
+[case $host in
+ *-*-mingw* )
+ case $build in
+ *-*-mingw* ) # actually msys
+ lt_cv_to_host_file_cmd=func_convert_file_msys_to_w32
+ ;;
+ *-*-cygwin* )
+ lt_cv_to_host_file_cmd=func_convert_file_cygwin_to_w32
+ ;;
+ * ) # otherwise, assume *nix
+ lt_cv_to_host_file_cmd=func_convert_file_nix_to_w32
+ ;;
+ esac
+ ;;
+ *-*-cygwin* )
+ case $build in
+ *-*-mingw* ) # actually msys
+ lt_cv_to_host_file_cmd=func_convert_file_msys_to_cygwin
+ ;;
+ *-*-cygwin* )
+ lt_cv_to_host_file_cmd=func_convert_file_noop
+ ;;
+ * ) # otherwise, assume *nix
+ lt_cv_to_host_file_cmd=func_convert_file_nix_to_cygwin
+ ;;
+ esac
+ ;;
+ * ) # unhandled hosts (and "normal" native builds)
+ lt_cv_to_host_file_cmd=func_convert_file_noop
+ ;;
+esac
+])
+to_host_file_cmd=$lt_cv_to_host_file_cmd
+AC_MSG_RESULT([$lt_cv_to_host_file_cmd])
+_LT_DECL([to_host_file_cmd], [lt_cv_to_host_file_cmd],
+ [0], [convert $build file names to $host format])dnl
+
+AC_MSG_CHECKING([how to convert $build file names to toolchain format])
+AC_CACHE_VAL(lt_cv_to_tool_file_cmd,
+[#assume ordinary cross tools, or native build.
+lt_cv_to_tool_file_cmd=func_convert_file_noop
+case $host in
+ *-*-mingw* )
+ case $build in
+ *-*-mingw* ) # actually msys
+ lt_cv_to_tool_file_cmd=func_convert_file_msys_to_w32
+ ;;
+ esac
+ ;;
+esac
+])
+to_tool_file_cmd=$lt_cv_to_tool_file_cmd
+AC_MSG_RESULT([$lt_cv_to_tool_file_cmd])
+_LT_DECL([to_tool_file_cmd], [lt_cv_to_tool_file_cmd],
+ [0], [convert $build files to toolchain format])dnl
+])# _LT_PATH_CONVERSION_FUNCTIONS
--- /dev/null
+# Helper functions for option handling. -*- Autoconf -*-
+#
+# Copyright (C) 2004-2005, 2007-2009, 2011-2015 Free Software
+# Foundation, Inc.
+# Written by Gary V. Vaughan, 2004
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 8 ltoptions.m4
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTOPTIONS_VERSION], [m4_if([1])])
+
+
+# _LT_MANGLE_OPTION(MACRO-NAME, OPTION-NAME)
+# ------------------------------------------
+m4_define([_LT_MANGLE_OPTION],
+[[_LT_OPTION_]m4_bpatsubst($1__$2, [[^a-zA-Z0-9_]], [_])])
+
+
+# _LT_SET_OPTION(MACRO-NAME, OPTION-NAME)
+# ---------------------------------------
+# Set option OPTION-NAME for macro MACRO-NAME, and if there is a
+# matching handler defined, dispatch to it. Other OPTION-NAMEs are
+# saved as a flag.
+m4_define([_LT_SET_OPTION],
+[m4_define(_LT_MANGLE_OPTION([$1], [$2]))dnl
+m4_ifdef(_LT_MANGLE_DEFUN([$1], [$2]),
+ _LT_MANGLE_DEFUN([$1], [$2]),
+ [m4_warning([Unknown $1 option '$2'])])[]dnl
+])
+
+
+# _LT_IF_OPTION(MACRO-NAME, OPTION-NAME, IF-SET, [IF-NOT-SET])
+# ------------------------------------------------------------
+# Execute IF-SET if OPTION is set, IF-NOT-SET otherwise.
+m4_define([_LT_IF_OPTION],
+[m4_ifdef(_LT_MANGLE_OPTION([$1], [$2]), [$3], [$4])])
+
+
+# _LT_UNLESS_OPTIONS(MACRO-NAME, OPTION-LIST, IF-NOT-SET)
+# -------------------------------------------------------
+# Execute IF-NOT-SET unless all options in OPTION-LIST for MACRO-NAME
+# are set.
+m4_define([_LT_UNLESS_OPTIONS],
+[m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
+ [m4_ifdef(_LT_MANGLE_OPTION([$1], _LT_Option),
+ [m4_define([$0_found])])])[]dnl
+m4_ifdef([$0_found], [m4_undefine([$0_found])], [$3
+])[]dnl
+])
+
+
+# _LT_SET_OPTIONS(MACRO-NAME, OPTION-LIST)
+# ----------------------------------------
+# OPTION-LIST is a space-separated list of Libtool options associated
+# with MACRO-NAME. If any OPTION has a matching handler declared with
+# LT_OPTION_DEFINE, dispatch to that macro; otherwise complain about
+# the unknown option and exit.
+m4_defun([_LT_SET_OPTIONS],
+[# Set options
+m4_foreach([_LT_Option], m4_split(m4_normalize([$2])),
+ [_LT_SET_OPTION([$1], _LT_Option)])
+
+m4_if([$1],[LT_INIT],[
+ dnl
+ dnl Simply set some default values (i.e off) if boolean options were not
+ dnl specified:
+ _LT_UNLESS_OPTIONS([LT_INIT], [dlopen], [enable_dlopen=no
+ ])
+ _LT_UNLESS_OPTIONS([LT_INIT], [win32-dll], [enable_win32_dll=no
+ ])
+ dnl
+ dnl If no reference was made to various pairs of opposing options, then
+ dnl we run the default mode handler for the pair. For example, if neither
+ dnl 'shared' nor 'disable-shared' was passed, we enable building of shared
+ dnl archives by default:
+ _LT_UNLESS_OPTIONS([LT_INIT], [shared disable-shared], [_LT_ENABLE_SHARED])
+ _LT_UNLESS_OPTIONS([LT_INIT], [static disable-static], [_LT_ENABLE_STATIC])
+ _LT_UNLESS_OPTIONS([LT_INIT], [pic-only no-pic], [_LT_WITH_PIC])
+ _LT_UNLESS_OPTIONS([LT_INIT], [fast-install disable-fast-install],
+ [_LT_ENABLE_FAST_INSTALL])
+ _LT_UNLESS_OPTIONS([LT_INIT], [aix-soname=aix aix-soname=both aix-soname=svr4],
+ [_LT_WITH_AIX_SONAME([aix])])
+ ])
+])# _LT_SET_OPTIONS
+
+
+## --------------------------------- ##
+## Macros to handle LT_INIT options. ##
+## --------------------------------- ##
+
+# _LT_MANGLE_DEFUN(MACRO-NAME, OPTION-NAME)
+# -----------------------------------------
+m4_define([_LT_MANGLE_DEFUN],
+[[_LT_OPTION_DEFUN_]m4_bpatsubst(m4_toupper([$1__$2]), [[^A-Z0-9_]], [_])])
+
+
+# LT_OPTION_DEFINE(MACRO-NAME, OPTION-NAME, CODE)
+# -----------------------------------------------
+m4_define([LT_OPTION_DEFINE],
+[m4_define(_LT_MANGLE_DEFUN([$1], [$2]), [$3])[]dnl
+])# LT_OPTION_DEFINE
+
+
+# dlopen
+# ------
+LT_OPTION_DEFINE([LT_INIT], [dlopen], [enable_dlopen=yes
+])
+
+AU_DEFUN([AC_LIBTOOL_DLOPEN],
+[_LT_SET_OPTION([LT_INIT], [dlopen])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the 'dlopen' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_DLOPEN], [])
+
+
+# win32-dll
+# ---------
+# Declare package support for building win32 dll's.
+LT_OPTION_DEFINE([LT_INIT], [win32-dll],
+[enable_win32_dll=yes
+
+case $host in
+*-*-cygwin* | *-*-mingw* | *-*-pw32* | *-*-cegcc*)
+ AC_CHECK_TOOL(AS, as, false)
+ AC_CHECK_TOOL(DLLTOOL, dlltool, false)
+ AC_CHECK_TOOL(OBJDUMP, objdump, false)
+ ;;
+esac
+
+test -z "$AS" && AS=as
+_LT_DECL([], [AS], [1], [Assembler program])dnl
+
+test -z "$DLLTOOL" && DLLTOOL=dlltool
+_LT_DECL([], [DLLTOOL], [1], [DLL creation program])dnl
+
+test -z "$OBJDUMP" && OBJDUMP=objdump
+_LT_DECL([], [OBJDUMP], [1], [Object dumper program])dnl
+])# win32-dll
+
+AU_DEFUN([AC_LIBTOOL_WIN32_DLL],
+[AC_REQUIRE([AC_CANONICAL_HOST])dnl
+_LT_SET_OPTION([LT_INIT], [win32-dll])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the 'win32-dll' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_WIN32_DLL], [])
+
+
+# _LT_ENABLE_SHARED([DEFAULT])
+# ----------------------------
+# implement the --enable-shared flag, and supports the 'shared' and
+# 'disable-shared' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'.
+m4_define([_LT_ENABLE_SHARED],
+[m4_define([_LT_ENABLE_SHARED_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([shared],
+ [AS_HELP_STRING([--enable-shared@<:@=PKGS@:>@],
+ [build shared libraries @<:@default=]_LT_ENABLE_SHARED_DEFAULT[@:>@])],
+ [p=${PACKAGE-default}
+ case $enableval in
+ yes) enable_shared=yes ;;
+ no) enable_shared=no ;;
+ *)
+ enable_shared=no
+ # Look at the argument we got. We use all the common list separators.
+ lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+ for pkg in $enableval; do
+ IFS=$lt_save_ifs
+ if test "X$pkg" = "X$p"; then
+ enable_shared=yes
+ fi
+ done
+ IFS=$lt_save_ifs
+ ;;
+ esac],
+ [enable_shared=]_LT_ENABLE_SHARED_DEFAULT)
+
+ _LT_DECL([build_libtool_libs], [enable_shared], [0],
+ [Whether or not to build shared libraries])
+])# _LT_ENABLE_SHARED
+
+LT_OPTION_DEFINE([LT_INIT], [shared], [_LT_ENABLE_SHARED([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-shared], [_LT_ENABLE_SHARED([no])])
+
+# Old names:
+AC_DEFUN([AC_ENABLE_SHARED],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[shared])
+])
+
+AC_DEFUN([AC_DISABLE_SHARED],
+[_LT_SET_OPTION([LT_INIT], [disable-shared])
+])
+
+AU_DEFUN([AM_ENABLE_SHARED], [AC_ENABLE_SHARED($@)])
+AU_DEFUN([AM_DISABLE_SHARED], [AC_DISABLE_SHARED($@)])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_ENABLE_SHARED], [])
+dnl AC_DEFUN([AM_DISABLE_SHARED], [])
+
+
+
+# _LT_ENABLE_STATIC([DEFAULT])
+# ----------------------------
+# implement the --enable-static flag, and support the 'static' and
+# 'disable-static' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'.
+m4_define([_LT_ENABLE_STATIC],
+[m4_define([_LT_ENABLE_STATIC_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([static],
+ [AS_HELP_STRING([--enable-static@<:@=PKGS@:>@],
+ [build static libraries @<:@default=]_LT_ENABLE_STATIC_DEFAULT[@:>@])],
+ [p=${PACKAGE-default}
+ case $enableval in
+ yes) enable_static=yes ;;
+ no) enable_static=no ;;
+ *)
+ enable_static=no
+ # Look at the argument we got. We use all the common list separators.
+ lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+ for pkg in $enableval; do
+ IFS=$lt_save_ifs
+ if test "X$pkg" = "X$p"; then
+ enable_static=yes
+ fi
+ done
+ IFS=$lt_save_ifs
+ ;;
+ esac],
+ [enable_static=]_LT_ENABLE_STATIC_DEFAULT)
+
+ _LT_DECL([build_old_libs], [enable_static], [0],
+ [Whether or not to build static libraries])
+])# _LT_ENABLE_STATIC
+
+LT_OPTION_DEFINE([LT_INIT], [static], [_LT_ENABLE_STATIC([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-static], [_LT_ENABLE_STATIC([no])])
+
+# Old names:
+AC_DEFUN([AC_ENABLE_STATIC],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[static])
+])
+
+AC_DEFUN([AC_DISABLE_STATIC],
+[_LT_SET_OPTION([LT_INIT], [disable-static])
+])
+
+AU_DEFUN([AM_ENABLE_STATIC], [AC_ENABLE_STATIC($@)])
+AU_DEFUN([AM_DISABLE_STATIC], [AC_DISABLE_STATIC($@)])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AM_ENABLE_STATIC], [])
+dnl AC_DEFUN([AM_DISABLE_STATIC], [])
+
+
+
+# _LT_ENABLE_FAST_INSTALL([DEFAULT])
+# ----------------------------------
+# implement the --enable-fast-install flag, and support the 'fast-install'
+# and 'disable-fast-install' LT_INIT options.
+# DEFAULT is either 'yes' or 'no'. If omitted, it defaults to 'yes'.
+m4_define([_LT_ENABLE_FAST_INSTALL],
+[m4_define([_LT_ENABLE_FAST_INSTALL_DEFAULT], [m4_if($1, no, no, yes)])dnl
+AC_ARG_ENABLE([fast-install],
+ [AS_HELP_STRING([--enable-fast-install@<:@=PKGS@:>@],
+ [optimize for fast installation @<:@default=]_LT_ENABLE_FAST_INSTALL_DEFAULT[@:>@])],
+ [p=${PACKAGE-default}
+ case $enableval in
+ yes) enable_fast_install=yes ;;
+ no) enable_fast_install=no ;;
+ *)
+ enable_fast_install=no
+ # Look at the argument we got. We use all the common list separators.
+ lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+ for pkg in $enableval; do
+ IFS=$lt_save_ifs
+ if test "X$pkg" = "X$p"; then
+ enable_fast_install=yes
+ fi
+ done
+ IFS=$lt_save_ifs
+ ;;
+ esac],
+ [enable_fast_install=]_LT_ENABLE_FAST_INSTALL_DEFAULT)
+
+_LT_DECL([fast_install], [enable_fast_install], [0],
+ [Whether or not to optimize for fast installation])dnl
+])# _LT_ENABLE_FAST_INSTALL
+
+LT_OPTION_DEFINE([LT_INIT], [fast-install], [_LT_ENABLE_FAST_INSTALL([yes])])
+LT_OPTION_DEFINE([LT_INIT], [disable-fast-install], [_LT_ENABLE_FAST_INSTALL([no])])
+
+# Old names:
+AU_DEFUN([AC_ENABLE_FAST_INSTALL],
+[_LT_SET_OPTION([LT_INIT], m4_if([$1], [no], [disable-])[fast-install])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you put
+the 'fast-install' option into LT_INIT's first parameter.])
+])
+
+AU_DEFUN([AC_DISABLE_FAST_INSTALL],
+[_LT_SET_OPTION([LT_INIT], [disable-fast-install])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you put
+the 'disable-fast-install' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_ENABLE_FAST_INSTALL], [])
+dnl AC_DEFUN([AM_DISABLE_FAST_INSTALL], [])
+
+
+# _LT_WITH_AIX_SONAME([DEFAULT])
+# ----------------------------------
+# implement the --with-aix-soname flag, and support the `aix-soname=aix'
+# and `aix-soname=both' and `aix-soname=svr4' LT_INIT options. DEFAULT
+# is either `aix', `both' or `svr4'. If omitted, it defaults to `aix'.
+m4_define([_LT_WITH_AIX_SONAME],
+[m4_define([_LT_WITH_AIX_SONAME_DEFAULT], [m4_if($1, svr4, svr4, m4_if($1, both, both, aix))])dnl
+shared_archive_member_spec=
+case $host,$enable_shared in
+power*-*-aix[[5-9]]*,yes)
+ AC_MSG_CHECKING([which variant of shared library versioning to provide])
+ AC_ARG_WITH([aix-soname],
+ [AS_HELP_STRING([--with-aix-soname=aix|svr4|both],
+ [shared library versioning (aka "SONAME") variant to provide on AIX, @<:@default=]_LT_WITH_AIX_SONAME_DEFAULT[@:>@.])],
+ [case $withval in
+ aix|svr4|both)
+ ;;
+ *)
+ AC_MSG_ERROR([Unknown argument to --with-aix-soname])
+ ;;
+ esac
+ lt_cv_with_aix_soname=$with_aix_soname],
+ [AC_CACHE_VAL([lt_cv_with_aix_soname],
+ [lt_cv_with_aix_soname=]_LT_WITH_AIX_SONAME_DEFAULT)
+ with_aix_soname=$lt_cv_with_aix_soname])
+ AC_MSG_RESULT([$with_aix_soname])
+ if test aix != "$with_aix_soname"; then
+ # For the AIX way of multilib, we name the shared archive member
+ # based on the bitwidth used, traditionally 'shr.o' or 'shr_64.o',
+ # and 'shr.imp' or 'shr_64.imp', respectively, for the Import File.
+ # Even when GNU compilers ignore OBJECT_MODE but need '-maix64' flag,
+ # the AIX toolchain works better with OBJECT_MODE set (default 32).
+ if test 64 = "${OBJECT_MODE-32}"; then
+ shared_archive_member_spec=shr_64
+ else
+ shared_archive_member_spec=shr
+ fi
+ fi
+ ;;
+*)
+ with_aix_soname=aix
+ ;;
+esac
+
+_LT_DECL([], [shared_archive_member_spec], [0],
+ [Shared archive member basename, for filename based shared library versioning on AIX])dnl
+])# _LT_WITH_AIX_SONAME
+
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=aix], [_LT_WITH_AIX_SONAME([aix])])
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=both], [_LT_WITH_AIX_SONAME([both])])
+LT_OPTION_DEFINE([LT_INIT], [aix-soname=svr4], [_LT_WITH_AIX_SONAME([svr4])])
+
+
+# _LT_WITH_PIC([MODE])
+# --------------------
+# implement the --with-pic flag, and support the 'pic-only' and 'no-pic'
+# LT_INIT options.
+# MODE is either 'yes' or 'no'. If omitted, it defaults to 'both'.
+m4_define([_LT_WITH_PIC],
+[AC_ARG_WITH([pic],
+ [AS_HELP_STRING([--with-pic@<:@=PKGS@:>@],
+ [try to use only PIC/non-PIC objects @<:@default=use both@:>@])],
+ [lt_p=${PACKAGE-default}
+ case $withval in
+ yes|no) pic_mode=$withval ;;
+ *)
+ pic_mode=default
+ # Look at the argument we got. We use all the common list separators.
+ lt_save_ifs=$IFS; IFS=$IFS$PATH_SEPARATOR,
+ for lt_pkg in $withval; do
+ IFS=$lt_save_ifs
+ if test "X$lt_pkg" = "X$lt_p"; then
+ pic_mode=yes
+ fi
+ done
+ IFS=$lt_save_ifs
+ ;;
+ esac],
+ [pic_mode=m4_default([$1], [default])])
+
+_LT_DECL([], [pic_mode], [0], [What type of objects to build])dnl
+])# _LT_WITH_PIC
+
+LT_OPTION_DEFINE([LT_INIT], [pic-only], [_LT_WITH_PIC([yes])])
+LT_OPTION_DEFINE([LT_INIT], [no-pic], [_LT_WITH_PIC([no])])
+
+# Old name:
+AU_DEFUN([AC_LIBTOOL_PICMODE],
+[_LT_SET_OPTION([LT_INIT], [pic-only])
+AC_DIAGNOSE([obsolete],
+[$0: Remove this warning and the call to _LT_SET_OPTION when you
+put the 'pic-only' option into LT_INIT's first parameter.])
+])
+
+dnl aclocal-1.4 backwards compatibility:
+dnl AC_DEFUN([AC_LIBTOOL_PICMODE], [])
+
+## ----------------- ##
+## LTDL_INIT Options ##
+## ----------------- ##
+
+m4_define([_LTDL_MODE], [])
+LT_OPTION_DEFINE([LTDL_INIT], [nonrecursive],
+ [m4_define([_LTDL_MODE], [nonrecursive])])
+LT_OPTION_DEFINE([LTDL_INIT], [recursive],
+ [m4_define([_LTDL_MODE], [recursive])])
+LT_OPTION_DEFINE([LTDL_INIT], [subproject],
+ [m4_define([_LTDL_MODE], [subproject])])
+
+m4_define([_LTDL_TYPE], [])
+LT_OPTION_DEFINE([LTDL_INIT], [installable],
+ [m4_define([_LTDL_TYPE], [installable])])
+LT_OPTION_DEFINE([LTDL_INIT], [convenience],
+ [m4_define([_LTDL_TYPE], [convenience])])
--- /dev/null
+# ltsugar.m4 -- libtool m4 base layer. -*-Autoconf-*-
+#
+# Copyright (C) 2004-2005, 2007-2008, 2011-2015 Free Software
+# Foundation, Inc.
+# Written by Gary V. Vaughan, 2004
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 6 ltsugar.m4
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTSUGAR_VERSION], [m4_if([0.1])])
+
+
+# lt_join(SEP, ARG1, [ARG2...])
+# -----------------------------
+# Produce ARG1SEPARG2...SEPARGn, omitting [] arguments and their
+# associated separator.
+# Needed until we can rely on m4_join from Autoconf 2.62, since all earlier
+# versions in m4sugar had bugs.
+m4_define([lt_join],
+[m4_if([$#], [1], [],
+ [$#], [2], [[$2]],
+ [m4_if([$2], [], [], [[$2]_])$0([$1], m4_shift(m4_shift($@)))])])
+m4_define([_lt_join],
+[m4_if([$#$2], [2], [],
+ [m4_if([$2], [], [], [[$1$2]])$0([$1], m4_shift(m4_shift($@)))])])
+
+
+# lt_car(LIST)
+# lt_cdr(LIST)
+# ------------
+# Manipulate m4 lists.
+# These macros are necessary as long as will still need to support
+# Autoconf-2.59, which quotes differently.
+m4_define([lt_car], [[$1]])
+m4_define([lt_cdr],
+[m4_if([$#], 0, [m4_fatal([$0: cannot be called without arguments])],
+ [$#], 1, [],
+ [m4_dquote(m4_shift($@))])])
+m4_define([lt_unquote], $1)
+
+
+# lt_append(MACRO-NAME, STRING, [SEPARATOR])
+# ------------------------------------------
+# Redefine MACRO-NAME to hold its former content plus 'SEPARATOR''STRING'.
+# Note that neither SEPARATOR nor STRING are expanded; they are appended
+# to MACRO-NAME as is (leaving the expansion for when MACRO-NAME is invoked).
+# No SEPARATOR is output if MACRO-NAME was previously undefined (different
+# than defined and empty).
+#
+# This macro is needed until we can rely on Autoconf 2.62, since earlier
+# versions of m4sugar mistakenly expanded SEPARATOR but not STRING.
+m4_define([lt_append],
+[m4_define([$1],
+ m4_ifdef([$1], [m4_defn([$1])[$3]])[$2])])
+
+
+
+# lt_combine(SEP, PREFIX-LIST, INFIX, SUFFIX1, [SUFFIX2...])
+# ----------------------------------------------------------
+# Produce a SEP delimited list of all paired combinations of elements of
+# PREFIX-LIST with SUFFIX1 through SUFFIXn. Each element of the list
+# has the form PREFIXmINFIXSUFFIXn.
+# Needed until we can rely on m4_combine added in Autoconf 2.62.
+m4_define([lt_combine],
+[m4_if(m4_eval([$# > 3]), [1],
+ [m4_pushdef([_Lt_sep], [m4_define([_Lt_sep], m4_defn([lt_car]))])]]dnl
+[[m4_foreach([_Lt_prefix], [$2],
+ [m4_foreach([_Lt_suffix],
+ ]m4_dquote(m4_dquote(m4_shift(m4_shift(m4_shift($@)))))[,
+ [_Lt_sep([$1])[]m4_defn([_Lt_prefix])[$3]m4_defn([_Lt_suffix])])])])])
+
+
+# lt_if_append_uniq(MACRO-NAME, VARNAME, [SEPARATOR], [UNIQ], [NOT-UNIQ])
+# -----------------------------------------------------------------------
+# Iff MACRO-NAME does not yet contain VARNAME, then append it (delimited
+# by SEPARATOR if supplied) and expand UNIQ, else NOT-UNIQ.
+m4_define([lt_if_append_uniq],
+[m4_ifdef([$1],
+ [m4_if(m4_index([$3]m4_defn([$1])[$3], [$3$2$3]), [-1],
+ [lt_append([$1], [$2], [$3])$4],
+ [$5])],
+ [lt_append([$1], [$2], [$3])$4])])
+
+
+# lt_dict_add(DICT, KEY, VALUE)
+# -----------------------------
+m4_define([lt_dict_add],
+[m4_define([$1($2)], [$3])])
+
+
+# lt_dict_add_subkey(DICT, KEY, SUBKEY, VALUE)
+# --------------------------------------------
+m4_define([lt_dict_add_subkey],
+[m4_define([$1($2:$3)], [$4])])
+
+
+# lt_dict_fetch(DICT, KEY, [SUBKEY])
+# ----------------------------------
+m4_define([lt_dict_fetch],
+[m4_ifval([$3],
+ m4_ifdef([$1($2:$3)], [m4_defn([$1($2:$3)])]),
+ m4_ifdef([$1($2)], [m4_defn([$1($2)])]))])
+
+
+# lt_if_dict_fetch(DICT, KEY, [SUBKEY], VALUE, IF-TRUE, [IF-FALSE])
+# -----------------------------------------------------------------
+m4_define([lt_if_dict_fetch],
+[m4_if(lt_dict_fetch([$1], [$2], [$3]), [$4],
+ [$5],
+ [$6])])
+
+
+# lt_dict_filter(DICT, [SUBKEY], VALUE, [SEPARATOR], KEY, [...])
+# --------------------------------------------------------------
+m4_define([lt_dict_filter],
+[m4_if([$5], [], [],
+ [lt_join(m4_quote(m4_default([$4], [[, ]])),
+ lt_unquote(m4_split(m4_normalize(m4_foreach(_Lt_key, lt_car([m4_shiftn(4, $@)]),
+ [lt_if_dict_fetch([$1], _Lt_key, [$2], [$3], [_Lt_key ])])))))])[]dnl
+])
--- /dev/null
+# ltversion.m4 -- version numbers -*- Autoconf -*-
+#
+# Copyright (C) 2004, 2011-2015 Free Software Foundation, Inc.
+# Written by Scott James Remnant, 2004
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# @configure_input@
+
+# serial 4179 ltversion.m4
+# This file is part of GNU Libtool
+
+m4_define([LT_PACKAGE_VERSION], [2.4.6])
+m4_define([LT_PACKAGE_REVISION], [2.4.6])
+
+AC_DEFUN([LTVERSION_VERSION],
+[macro_version='2.4.6'
+macro_revision='2.4.6'
+_LT_DECL(, macro_version, 0, [Which release of libtool.m4 was used?])
+_LT_DECL(, macro_revision, 0)
+])
--- /dev/null
+# lt~obsolete.m4 -- aclocal satisfying obsolete definitions. -*-Autoconf-*-
+#
+# Copyright (C) 2004-2005, 2007, 2009, 2011-2015 Free Software
+# Foundation, Inc.
+# Written by Scott James Remnant, 2004.
+#
+# This file is free software; the Free Software Foundation gives
+# unlimited permission to copy and/or distribute it, with or without
+# modifications, as long as this notice is preserved.
+
+# serial 5 lt~obsolete.m4
+
+# These exist entirely to fool aclocal when bootstrapping libtool.
+#
+# In the past libtool.m4 has provided macros via AC_DEFUN (or AU_DEFUN),
+# which have later been changed to m4_define as they aren't part of the
+# exported API, or moved to Autoconf or Automake where they belong.
+#
+# The trouble is, aclocal is a bit thick. It'll see the old AC_DEFUN
+# in /usr/share/aclocal/libtool.m4 and remember it, then when it sees us
+# using a macro with the same name in our local m4/libtool.m4 it'll
+# pull the old libtool.m4 in (it doesn't see our shiny new m4_define
+# and doesn't know about Autoconf macros at all.)
+#
+# So we provide this file, which has a silly filename so it's always
+# included after everything else. This provides aclocal with the
+# AC_DEFUNs it wants, but when m4 processes it, it doesn't do anything
+# because those macros already exist, or will be overwritten later.
+# We use AC_DEFUN over AU_DEFUN for compatibility with aclocal-1.6.
+#
+# Anytime we withdraw an AC_DEFUN or AU_DEFUN, remember to add it here.
+# Yes, that means every name once taken will need to remain here until
+# we give up compatibility with versions before 1.7, at which point
+# we need to keep only those names which we still refer to.
+
+# This is to help aclocal find these macros, as it can't see m4_define.
+AC_DEFUN([LTOBSOLETE_VERSION], [m4_if([1])])
+
+m4_ifndef([AC_LIBTOOL_LINKER_OPTION], [AC_DEFUN([AC_LIBTOOL_LINKER_OPTION])])
+m4_ifndef([AC_PROG_EGREP], [AC_DEFUN([AC_PROG_EGREP])])
+m4_ifndef([_LT_AC_PROG_ECHO_BACKSLASH], [AC_DEFUN([_LT_AC_PROG_ECHO_BACKSLASH])])
+m4_ifndef([_LT_AC_SHELL_INIT], [AC_DEFUN([_LT_AC_SHELL_INIT])])
+m4_ifndef([_LT_AC_SYS_LIBPATH_AIX], [AC_DEFUN([_LT_AC_SYS_LIBPATH_AIX])])
+m4_ifndef([_LT_PROG_LTMAIN], [AC_DEFUN([_LT_PROG_LTMAIN])])
+m4_ifndef([_LT_AC_TAGVAR], [AC_DEFUN([_LT_AC_TAGVAR])])
+m4_ifndef([AC_LTDL_ENABLE_INSTALL], [AC_DEFUN([AC_LTDL_ENABLE_INSTALL])])
+m4_ifndef([AC_LTDL_PREOPEN], [AC_DEFUN([AC_LTDL_PREOPEN])])
+m4_ifndef([_LT_AC_SYS_COMPILER], [AC_DEFUN([_LT_AC_SYS_COMPILER])])
+m4_ifndef([_LT_AC_LOCK], [AC_DEFUN([_LT_AC_LOCK])])
+m4_ifndef([AC_LIBTOOL_SYS_OLD_ARCHIVE], [AC_DEFUN([AC_LIBTOOL_SYS_OLD_ARCHIVE])])
+m4_ifndef([_LT_AC_TRY_DLOPEN_SELF], [AC_DEFUN([_LT_AC_TRY_DLOPEN_SELF])])
+m4_ifndef([AC_LIBTOOL_PROG_CC_C_O], [AC_DEFUN([AC_LIBTOOL_PROG_CC_C_O])])
+m4_ifndef([AC_LIBTOOL_SYS_HARD_LINK_LOCKS], [AC_DEFUN([AC_LIBTOOL_SYS_HARD_LINK_LOCKS])])
+m4_ifndef([AC_LIBTOOL_OBJDIR], [AC_DEFUN([AC_LIBTOOL_OBJDIR])])
+m4_ifndef([AC_LTDL_OBJDIR], [AC_DEFUN([AC_LTDL_OBJDIR])])
+m4_ifndef([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH], [AC_DEFUN([AC_LIBTOOL_PROG_LD_HARDCODE_LIBPATH])])
+m4_ifndef([AC_LIBTOOL_SYS_LIB_STRIP], [AC_DEFUN([AC_LIBTOOL_SYS_LIB_STRIP])])
+m4_ifndef([AC_PATH_MAGIC], [AC_DEFUN([AC_PATH_MAGIC])])
+m4_ifndef([AC_PROG_LD_GNU], [AC_DEFUN([AC_PROG_LD_GNU])])
+m4_ifndef([AC_PROG_LD_RELOAD_FLAG], [AC_DEFUN([AC_PROG_LD_RELOAD_FLAG])])
+m4_ifndef([AC_DEPLIBS_CHECK_METHOD], [AC_DEFUN([AC_DEPLIBS_CHECK_METHOD])])
+m4_ifndef([AC_LIBTOOL_PROG_COMPILER_NO_RTTI], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_NO_RTTI])])
+m4_ifndef([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE], [AC_DEFUN([AC_LIBTOOL_SYS_GLOBAL_SYMBOL_PIPE])])
+m4_ifndef([AC_LIBTOOL_PROG_COMPILER_PIC], [AC_DEFUN([AC_LIBTOOL_PROG_COMPILER_PIC])])
+m4_ifndef([AC_LIBTOOL_PROG_LD_SHLIBS], [AC_DEFUN([AC_LIBTOOL_PROG_LD_SHLIBS])])
+m4_ifndef([AC_LIBTOOL_POSTDEP_PREDEP], [AC_DEFUN([AC_LIBTOOL_POSTDEP_PREDEP])])
+m4_ifndef([LT_AC_PROG_EGREP], [AC_DEFUN([LT_AC_PROG_EGREP])])
+m4_ifndef([LT_AC_PROG_SED], [AC_DEFUN([LT_AC_PROG_SED])])
+m4_ifndef([_LT_CC_BASENAME], [AC_DEFUN([_LT_CC_BASENAME])])
+m4_ifndef([_LT_COMPILER_BOILERPLATE], [AC_DEFUN([_LT_COMPILER_BOILERPLATE])])
+m4_ifndef([_LT_LINKER_BOILERPLATE], [AC_DEFUN([_LT_LINKER_BOILERPLATE])])
+m4_ifndef([_AC_PROG_LIBTOOL], [AC_DEFUN([_AC_PROG_LIBTOOL])])
+m4_ifndef([AC_LIBTOOL_SETUP], [AC_DEFUN([AC_LIBTOOL_SETUP])])
+m4_ifndef([_LT_AC_CHECK_DLFCN], [AC_DEFUN([_LT_AC_CHECK_DLFCN])])
+m4_ifndef([AC_LIBTOOL_SYS_DYNAMIC_LINKER], [AC_DEFUN([AC_LIBTOOL_SYS_DYNAMIC_LINKER])])
+m4_ifndef([_LT_AC_TAGCONFIG], [AC_DEFUN([_LT_AC_TAGCONFIG])])
+m4_ifndef([AC_DISABLE_FAST_INSTALL], [AC_DEFUN([AC_DISABLE_FAST_INSTALL])])
+m4_ifndef([_LT_AC_LANG_CXX], [AC_DEFUN([_LT_AC_LANG_CXX])])
+m4_ifndef([_LT_AC_LANG_F77], [AC_DEFUN([_LT_AC_LANG_F77])])
+m4_ifndef([_LT_AC_LANG_GCJ], [AC_DEFUN([_LT_AC_LANG_GCJ])])
+m4_ifndef([AC_LIBTOOL_LANG_C_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_C_CONFIG])])
+m4_ifndef([_LT_AC_LANG_C_CONFIG], [AC_DEFUN([_LT_AC_LANG_C_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_CXX_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_CXX_CONFIG])])
+m4_ifndef([_LT_AC_LANG_CXX_CONFIG], [AC_DEFUN([_LT_AC_LANG_CXX_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_F77_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_F77_CONFIG])])
+m4_ifndef([_LT_AC_LANG_F77_CONFIG], [AC_DEFUN([_LT_AC_LANG_F77_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_GCJ_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_GCJ_CONFIG])])
+m4_ifndef([_LT_AC_LANG_GCJ_CONFIG], [AC_DEFUN([_LT_AC_LANG_GCJ_CONFIG])])
+m4_ifndef([AC_LIBTOOL_LANG_RC_CONFIG], [AC_DEFUN([AC_LIBTOOL_LANG_RC_CONFIG])])
+m4_ifndef([_LT_AC_LANG_RC_CONFIG], [AC_DEFUN([_LT_AC_LANG_RC_CONFIG])])
+m4_ifndef([AC_LIBTOOL_CONFIG], [AC_DEFUN([AC_LIBTOOL_CONFIG])])
+m4_ifndef([_LT_AC_FILE_LTDLL_C], [AC_DEFUN([_LT_AC_FILE_LTDLL_C])])
+m4_ifndef([_LT_REQUIRED_DARWIN_CHECKS], [AC_DEFUN([_LT_REQUIRED_DARWIN_CHECKS])])
+m4_ifndef([_LT_AC_PROG_CXXCPP], [AC_DEFUN([_LT_AC_PROG_CXXCPP])])
+m4_ifndef([_LT_PREPARE_SED_QUOTE_VARS], [AC_DEFUN([_LT_PREPARE_SED_QUOTE_VARS])])
+m4_ifndef([_LT_PROG_ECHO_BACKSLASH], [AC_DEFUN([_LT_PROG_ECHO_BACKSLASH])])
+m4_ifndef([_LT_PROG_F77], [AC_DEFUN([_LT_PROG_F77])])
+m4_ifndef([_LT_PROG_FC], [AC_DEFUN([_LT_PROG_FC])])
+m4_ifndef([_LT_PROG_CXX], [AC_DEFUN([_LT_PROG_CXX])])
--- /dev/null
+dnl autoconf macros for OCaml
+dnl
+dnl Copyright © 2009 Richard W.M. Jones
+dnl Copyright © 2009 Stefano Zacchiroli
+dnl Copyright © 2000-2005 Olivier Andrieu
+dnl Copyright © 2000-2005 Jean-Christophe Filliâtre
+dnl Copyright © 2000-2005 Georges Mariano
+dnl
+dnl For documentation, please read the ocaml.m4 man page.
+
+AC_DEFUN([AC_PROG_OCAML],
+[dnl
+ # checking for ocamlc
+ AC_CHECK_TOOL([OCAMLC],[ocamlc],[no])
+
+ if test "$OCAMLC" != "no"; then
+ OCAMLVERSION=`$OCAMLC -v | sed -n -e 's|.*version* *\(.*\)$|\1|p'`
+ AC_MSG_RESULT([OCaml version is $OCAMLVERSION])
+ # If OCAMLLIB is set, use it
+ if test "$OCAMLLIB" = ""; then
+ OCAMLLIB=`$OCAMLC -where 2>/dev/null || $OCAMLC -v|tail -1|cut -d ' ' -f 4`
+ else
+ AC_MSG_RESULT([OCAMLLIB previously set; preserving it.])
+ fi
+ AC_MSG_RESULT([OCaml library path is $OCAMLLIB])
+
+ AC_SUBST([OCAMLVERSION])
+ AC_SUBST([OCAMLLIB])
+
+ # checking for ocamlopt
+ AC_CHECK_TOOL([OCAMLOPT],[ocamlopt],[no])
+ OCAMLBEST=byte
+ if test "$OCAMLOPT" = "no"; then
+ AC_MSG_WARN([Cannot find ocamlopt; bytecode compilation only.])
+ else
+ TMPVERSION=`$OCAMLOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
+ if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+ AC_MSG_RESULT([versions differs from ocamlc; ocamlopt discarded.])
+ OCAMLOPT=no
+ else
+ OCAMLBEST=opt
+ fi
+ fi
+
+ AC_SUBST([OCAMLBEST])
+
+ # checking for ocamlc.opt
+ AC_CHECK_TOOL([OCAMLCDOTOPT],[ocamlc.opt],[no])
+ if test "$OCAMLCDOTOPT" != "no"; then
+ TMPVERSION=`$OCAMLCDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
+ if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+ AC_MSG_RESULT([versions differs from ocamlc; ocamlc.opt discarded.])
+ else
+ OCAMLC=$OCAMLCDOTOPT
+ fi
+ fi
+
+ # checking for ocamlopt.opt
+ if test "$OCAMLOPT" != "no" ; then
+ AC_CHECK_TOOL([OCAMLOPTDOTOPT],[ocamlopt.opt],[no])
+ if test "$OCAMLOPTDOTOPT" != "no"; then
+ TMPVERSION=`$OCAMLOPTDOTOPT -v | sed -n -e 's|.*version* *\(.*\)$|\1|p' `
+ if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+ AC_MSG_RESULT([version differs from ocamlc; ocamlopt.opt discarded.])
+ else
+ OCAMLOPT=$OCAMLOPTDOTOPT
+ fi
+ fi
+ fi
+
+ AC_SUBST([OCAMLOPT])
+ fi
+
+ AC_SUBST([OCAMLC])
+
+ # checking for ocaml toplevel
+ AC_CHECK_TOOL([OCAML],[ocaml],[no])
+
+ # checking for ocamldep
+ AC_CHECK_TOOL([OCAMLDEP],[ocamldep],[no])
+
+ # checking for ocamlmktop
+ AC_CHECK_TOOL([OCAMLMKTOP],[ocamlmktop],[no])
+
+ # checking for ocamlmklib
+ AC_CHECK_TOOL([OCAMLMKLIB],[ocamlmklib],[no])
+
+ # checking for ocamldoc
+ AC_CHECK_TOOL([OCAMLDOC],[ocamldoc],[no])
+
+ # checking for ocamlbuild
+ AC_CHECK_TOOL([OCAMLBUILD],[ocamlbuild],[no])
+])
+
+
+AC_DEFUN([AC_PROG_OCAMLLEX],
+[dnl
+ # checking for ocamllex
+ AC_CHECK_TOOL([OCAMLLEX],[ocamllex],[no])
+ if test "$OCAMLLEX" != "no"; then
+ AC_CHECK_TOOL([OCAMLLEXDOTOPT],[ocamllex.opt],[no])
+ if test "$OCAMLLEXDOTOPT" != "no"; then
+ OCAMLLEX=$OCAMLLEXDOTOPT
+ fi
+ fi
+ AC_SUBST([OCAMLLEX])
+])
+
+AC_DEFUN([AC_PROG_OCAMLYACC],
+[dnl
+ AC_CHECK_TOOL([OCAMLYACC],[ocamlyacc],[no])
+ AC_SUBST([OCAMLYACC])
+])
+
+
+AC_DEFUN([AC_PROG_CAMLP4],
+[dnl
+ AC_REQUIRE([AC_PROG_OCAML])dnl
+
+ # checking for camlp4
+ AC_CHECK_TOOL([CAMLP4],[camlp4],[no])
+ if test "$CAMLP4" != "no"; then
+ TMPVERSION=`$CAMLP4 -v 2>&1| sed -n -e 's|.*version *\(.*\)$|\1|p'`
+ if test "$TMPVERSION" != "$OCAMLVERSION" ; then
+ AC_MSG_RESULT([versions differs from ocamlc])
+ CAMLP4=no
+ fi
+ fi
+ AC_SUBST([CAMLP4])
+
+ # checking for companion tools
+ AC_CHECK_TOOL([CAMLP4BOOT],[camlp4boot],[no])
+ AC_CHECK_TOOL([CAMLP4O],[camlp4o],[no])
+ AC_CHECK_TOOL([CAMLP4OF],[camlp4of],[no])
+ AC_CHECK_TOOL([CAMLP4OOF],[camlp4oof],[no])
+ AC_CHECK_TOOL([CAMLP4ORF],[camlp4orf],[no])
+ AC_CHECK_TOOL([CAMLP4PROF],[camlp4prof],[no])
+ AC_CHECK_TOOL([CAMLP4R],[camlp4r],[no])
+ AC_CHECK_TOOL([CAMLP4RF],[camlp4rf],[no])
+ AC_SUBST([CAMLP4BOOT])
+ AC_SUBST([CAMLP4O])
+ AC_SUBST([CAMLP4OF])
+ AC_SUBST([CAMLP4OOF])
+ AC_SUBST([CAMLP4ORF])
+ AC_SUBST([CAMLP4PROF])
+ AC_SUBST([CAMLP4R])
+ AC_SUBST([CAMLP4RF])
+])
+
+
+AC_DEFUN([AC_PROG_FINDLIB],
+[dnl
+ AC_REQUIRE([AC_PROG_OCAML])dnl
+
+ # checking for ocamlfind
+ AC_CHECK_TOOL([OCAMLFIND],[ocamlfind],[no])
+ AC_SUBST([OCAMLFIND])
+])
+
+
+dnl Thanks to Jim Meyering for working this next bit out for us.
+dnl XXX We should define AS_TR_SH if it's not defined already
+dnl (eg. for old autoconf).
+AC_DEFUN([AC_CHECK_OCAML_PKG],
+[dnl
+ AC_REQUIRE([AC_PROG_FINDLIB])dnl
+
+ AC_MSG_CHECKING([for OCaml findlib package $1])
+
+ unset found
+ unset pkg
+ found=no
+ for pkg in $1 $2 ; do
+ if $OCAMLFIND query $pkg >/dev/null 2>/dev/null; then
+ AC_MSG_RESULT([found])
+ AS_TR_SH([OCAML_PKG_$1])=$pkg
+ found=yes
+ break
+ fi
+ done
+ if test "$found" = "no" ; then
+ AC_MSG_RESULT([not found])
+ AS_TR_SH([OCAML_PKG_$1])=no
+ fi
+
+ AC_SUBST(AS_TR_SH([OCAML_PKG_$1]))
+])
+
+
+AC_DEFUN([AC_CHECK_OCAML_MODULE],
+[dnl
+ AC_MSG_CHECKING([for OCaml module $2])
+
+ cat > conftest.ml <<EOF
+open $3
+EOF
+ unset found
+ for $1 in $$1 $4 ; do
+ if $OCAMLC -c -I "$$1" conftest.ml >&5 2>&5 ; then
+ found=yes
+ break
+ fi
+ done
+
+ if test "$found" ; then
+ AC_MSG_RESULT([$$1])
+ else
+ AC_MSG_RESULT([not found])
+ $1=no
+ fi
+ AC_SUBST([$1])
+])
+
+
+dnl XXX Cross-compiling
+AC_DEFUN([AC_CHECK_OCAML_WORD_SIZE],
+[dnl
+ AC_REQUIRE([AC_PROG_OCAML])dnl
+ AC_MSG_CHECKING([for OCaml compiler word size])
+ cat > conftest.ml <<EOF
+ print_endline (string_of_int Sys.word_size)
+ EOF
+ OCAML_WORD_SIZE=`$OCAML conftest.ml`
+ AC_MSG_RESULT([$OCAML_WORD_SIZE])
+ AC_SUBST([OCAML_WORD_SIZE])
+])
+
+AC_DEFUN([AC_CHECK_OCAML_OS_TYPE],
+[dnl
+ AC_REQUIRE([AC_PROG_OCAML])dnl
+ AC_MSG_CHECKING([OCaml Sys.os_type])
+
+ cat > conftest.ml <<EOF
+ print_string(Sys.os_type);;
+EOF
+
+ OCAML_OS_TYPE=`$OCAML conftest.ml`
+ AC_MSG_RESULT([$OCAML_OS_TYPE])
+ AC_SUBST([OCAML_OS_TYPE])
+])
--- /dev/null
+#! /bin/sh
+# Common wrapper for a few potentially missing GNU programs.
+
+scriptversion=2018-03-07.03; # UTC
+
+# Copyright (C) 1996-2018 Free Software Foundation, Inc.
+# Originally written by Fran,cois Pinard <pinard@iro.umontreal.ca>, 1996.
+
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+if test $# -eq 0; then
+ echo 1>&2 "Try '$0 --help' for more information"
+ exit 1
+fi
+
+case $1 in
+
+ --is-lightweight)
+ # Used by our autoconf macros to check whether the available missing
+ # script is modern enough.
+ exit 0
+ ;;
+
+ --run)
+ # Back-compat with the calling convention used by older automake.
+ shift
+ ;;
+
+ -h|--h|--he|--hel|--help)
+ echo "\
+$0 [OPTION]... PROGRAM [ARGUMENT]...
+
+Run 'PROGRAM [ARGUMENT]...', returning a proper advice when this fails due
+to PROGRAM being missing or too old.
+
+Options:
+ -h, --help display this help and exit
+ -v, --version output version information and exit
+
+Supported PROGRAM values:
+ aclocal autoconf autoheader autom4te automake makeinfo
+ bison yacc flex lex help2man
+
+Version suffixes to PROGRAM as well as the prefixes 'gnu-', 'gnu', and
+'g' are ignored when checking the name.
+
+Send bug reports to <bug-automake@gnu.org>."
+ exit $?
+ ;;
+
+ -v|--v|--ve|--ver|--vers|--versi|--versio|--version)
+ echo "missing $scriptversion (GNU Automake)"
+ exit $?
+ ;;
+
+ -*)
+ echo 1>&2 "$0: unknown '$1' option"
+ echo 1>&2 "Try '$0 --help' for more information"
+ exit 1
+ ;;
+
+esac
+
+# Run the given program, remember its exit status.
+"$@"; st=$?
+
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+# passed; such an option is passed most likely to detect whether the
+# program is present and works.
+case $2 in --version|--help) exit $st;; esac
+
+# Exit code 63 means version mismatch. This often happens when the user
+# tries to use an ancient version of a tool on a file that requires a
+# minimum version.
+if test $st -eq 63; then
+ msg="probably too old"
+elif test $st -eq 127; then
+ # Program was missing.
+ msg="missing on your system"
+else
+ # Program was found and executed, but failed. Give up.
+ exit $st
+fi
+
+perl_URL=https://www.perl.org/
+flex_URL=https://github.com/westes/flex
+gnu_software_URL=https://www.gnu.org/software
+
+program_details ()
+{
+ case $1 in
+ aclocal|automake)
+ echo "The '$1' program is part of the GNU Automake package:"
+ echo "<$gnu_software_URL/automake>"
+ echo "It also requires GNU Autoconf, GNU m4 and Perl in order to run:"
+ echo "<$gnu_software_URL/autoconf>"
+ echo "<$gnu_software_URL/m4/>"
+ echo "<$perl_URL>"
+ ;;
+ autoconf|autom4te|autoheader)
+ echo "The '$1' program is part of the GNU Autoconf package:"
+ echo "<$gnu_software_URL/autoconf/>"
+ echo "It also requires GNU m4 and Perl in order to run:"
+ echo "<$gnu_software_URL/m4/>"
+ echo "<$perl_URL>"
+ ;;
+ esac
+}
+
+give_advice ()
+{
+ # Normalize program name to check for.
+ normalized_program=`echo "$1" | sed '
+ s/^gnu-//; t
+ s/^gnu//; t
+ s/^g//; t'`
+
+ printf '%s\n' "'$1' is $msg."
+
+ configure_deps="'configure.ac' or m4 files included by 'configure.ac'"
+ case $normalized_program in
+ autoconf*)
+ echo "You should only need it if you modified 'configure.ac',"
+ echo "or m4 files included by it."
+ program_details 'autoconf'
+ ;;
+ autoheader*)
+ echo "You should only need it if you modified 'acconfig.h' or"
+ echo "$configure_deps."
+ program_details 'autoheader'
+ ;;
+ automake*)
+ echo "You should only need it if you modified 'Makefile.am' or"
+ echo "$configure_deps."
+ program_details 'automake'
+ ;;
+ aclocal*)
+ echo "You should only need it if you modified 'acinclude.m4' or"
+ echo "$configure_deps."
+ program_details 'aclocal'
+ ;;
+ autom4te*)
+ echo "You might have modified some maintainer files that require"
+ echo "the 'autom4te' program to be rebuilt."
+ program_details 'autom4te'
+ ;;
+ bison*|yacc*)
+ echo "You should only need it if you modified a '.y' file."
+ echo "You may want to install the GNU Bison package:"
+ echo "<$gnu_software_URL/bison/>"
+ ;;
+ lex*|flex*)
+ echo "You should only need it if you modified a '.l' file."
+ echo "You may want to install the Fast Lexical Analyzer package:"
+ echo "<$flex_URL>"
+ ;;
+ help2man*)
+ echo "You should only need it if you modified a dependency" \
+ "of a man page."
+ echo "You may want to install the GNU Help2man package:"
+ echo "<$gnu_software_URL/help2man/>"
+ ;;
+ makeinfo*)
+ echo "You should only need it if you modified a '.texi' file, or"
+ echo "any other file indirectly affecting the aspect of the manual."
+ echo "You might want to install the Texinfo package:"
+ echo "<$gnu_software_URL/texinfo/>"
+ echo "The spurious makeinfo call might also be the consequence of"
+ echo "using a buggy 'make' (AIX, DU, IRIX), in which case you might"
+ echo "want to install GNU make:"
+ echo "<$gnu_software_URL/make/>"
+ ;;
+ *)
+ echo "You might have modified some files without having the proper"
+ echo "tools for further handling them. Check the 'README' file, it"
+ echo "often tells you about the needed prerequisites for installing"
+ echo "this package. You may also peek at any GNU archive site, in"
+ echo "case some other package contains this missing '$1' program."
+ ;;
+ esac
+}
+
+give_advice "$1" | sed -e '1s/^/WARNING: /' \
+ -e '2,$s/^/ /' >&2
+
+# Propagate the correct exit status (expected to be 127 for a program
+# not found, 63 for a program that failed due to version mismatch).
+exit $st
+
+# Local variables:
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
--- /dev/null
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = plugins.syms
+
+SUBDIRS = $(plugins)
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
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+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
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+# This Makefile.in is free software; the Free Software Foundation
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+# with or without modifications, as long as this notice is preserved.
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+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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+@SET_MAKE@
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+# nbdkit
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+#
+# * Redistributions of source code must retain the above copyright
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+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
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+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+# nbdkit
+# Copyright (C) 2014 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-curl-plugin.pod
+
+if HAVE_CURL
+
+plugin_LTLIBRARIES = nbdkit-curl-plugin.la
+
+nbdkit_curl_plugin_la_SOURCES = \
+ curl.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_curl_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_curl_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS) \
+ $(CURL_CFLAGS)
+nbdkit_curl_plugin_la_LIBADD = \
+ $(CURL_LIBS)
+nbdkit_curl_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-curl-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-curl-plugin.1: nbdkit-curl-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+
+endif
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+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
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+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
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+
+# nbdkit
+# Copyright (C) 2014 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+
+distclean-compile:
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+
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+mostlyclean-libtool:
+ -rm -f *.lo
+
+clean-libtool:
+ -rm -rf .libs _libs
+install-man1: $(man_MANS)
+ @$(NORMAL_INSTALL)
+ @list1=''; \
+ list2='$(man_MANS)'; \
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+.PRECIOUS: Makefile
+
+
+@HAVE_CURL_TRUE@@HAVE_POD_TRUE@nbdkit-curl-plugin.1: nbdkit-curl-plugin.pod
+@HAVE_CURL_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_CURL_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_CURL_TRUE@@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2014 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* NB: The terminology used by libcurl is confusing!
+ *
+ * WRITEFUNCTION / write_cb is used when reading from the remote server
+ * READFUNCTION / read_cb is used when writing to the remote server.
+ *
+ * We use the same terminology as libcurl here.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <assert.h>
+
+#include <curl/curl.h>
+
+#include <nbdkit-plugin.h>
+
+static const char *url = NULL;
+static const char *user = NULL;
+static char *password = NULL;
+static const char *proxy_user = NULL;
+static char *proxy_password = NULL;
+static char *cookie = NULL;
+static bool sslverify = true;
+static long timeout = 0;
+static const char *unix_socket_path = NULL;
+static long protocols = CURLPROTO_ALL;
+
+/* Use '-D curl.verbose=1' to set. */
+int curl_debug_verbose = 0;
+
+static void
+curl_load (void)
+{
+ CURLcode r;
+
+ r = curl_global_init (CURL_GLOBAL_DEFAULT);
+ if (r != CURLE_OK) {
+ nbdkit_error ("libcurl initialization failed: %d", (int) r);
+ exit (EXIT_FAILURE);
+ }
+}
+
+static void
+curl_unload (void)
+{
+ free (password);
+ free (proxy_password);
+ free (cookie);
+ curl_global_cleanup ();
+}
+
+/* See <curl/curl.h> */
+static struct { const char *name; long bitmask; } curl_protocols[] = {
+ { "http", CURLPROTO_HTTP },
+ { "https", CURLPROTO_HTTPS },
+ { "ftp", CURLPROTO_FTP },
+ { "ftps", CURLPROTO_FTPS },
+ { "scp", CURLPROTO_SCP },
+ { "sftp", CURLPROTO_SFTP },
+ { "telnet", CURLPROTO_TELNET },
+ { "ldap", CURLPROTO_LDAP },
+ { "ldaps", CURLPROTO_LDAPS },
+ { "dict", CURLPROTO_DICT },
+ { "file", CURLPROTO_FILE },
+ { "tftp", CURLPROTO_TFTP },
+ { "imap", CURLPROTO_IMAP },
+ { "imaps", CURLPROTO_IMAPS },
+ { "pop3", CURLPROTO_POP3 },
+ { "pop3s", CURLPROTO_POP3S },
+ { "smtp", CURLPROTO_SMTP },
+ { "smtps", CURLPROTO_SMTPS },
+ { "rtsp", CURLPROTO_RTSP },
+ { "rtmp", CURLPROTO_RTMP },
+ { "rtmpt", CURLPROTO_RTMPT },
+ { "rtmpe", CURLPROTO_RTMPE },
+ { "rtmpte", CURLPROTO_RTMPTE },
+ { "rtmps", CURLPROTO_RTMPS },
+ { "rtmpts", CURLPROTO_RTMPTS },
+ { "gopher", CURLPROTO_GOPHER },
+ { "smb", CURLPROTO_SMB },
+ { "smbs", CURLPROTO_SMBS },
+ { NULL }
+};
+
+/* Parse the protocols parameter. */
+static int
+parse_protocols (const char *value)
+{
+ size_t n, i;
+
+ protocols = 0;
+
+ while (*value) {
+ n = strcspn (value, ",");
+ for (i = 0; curl_protocols[i].name != NULL; ++i) {
+ if (strlen (curl_protocols[i].name) == n &&
+ strncmp (value, curl_protocols[i].name, n) == 0) {
+ protocols |= curl_protocols[i].bitmask;
+ goto found;
+ }
+ }
+ nbdkit_error ("protocols: protocol name not found: %.*s", (int) n, value);
+ return -1;
+
+ found:
+ value += n;
+ if (*value == ',')
+ value++;
+ }
+
+ if (protocols == 0) {
+ nbdkit_error ("protocols: empty list of protocols is not allowed");
+ return -1;
+ }
+
+ nbdkit_debug ("curl: protocols: %ld", protocols);
+
+ return 0;
+}
+
+/* Called for each key=value passed on the command line. */
+static int
+curl_config (const char *key, const char *value)
+{
+ int r;
+
+ if (strcmp (key, "url") == 0)
+ url = value;
+
+ else if (strcmp (key, "user") == 0)
+ user = value;
+
+ else if (strcmp (key, "password") == 0) {
+ free (password);
+ if (nbdkit_read_password (value, &password) == -1)
+ return -1;
+ }
+
+ else if (strcmp (key, "proxy-user") == 0)
+ proxy_user = value;
+
+ else if (strcmp (key, "proxy-password") == 0) {
+ free (proxy_password);
+ if (nbdkit_read_password (value, &proxy_password) == -1)
+ return -1;
+ }
+
+ else if (strcmp (key, "cookie") == 0) {
+ free (cookie);
+ if (nbdkit_read_password (value, &cookie) == -1)
+ return -1;
+ }
+
+ else if (strcmp (key, "sslverify") == 0) {
+ r = nbdkit_parse_bool (value);
+ if (r == -1)
+ return -1;
+ sslverify = r;
+ }
+
+ else if (strcmp (key, "timeout") == 0) {
+ if (sscanf (value, "%ld", &timeout) != 1 || timeout < 0) {
+ nbdkit_error ("'timeout' must be 0 or a positive timeout in seconds");
+ return -1;
+ }
+ }
+
+ else if (strcmp (key, "unix-socket-path") == 0 ||
+ strcmp (key, "unix_socket_path") == 0)
+ unix_socket_path = value;
+
+ else if (strcmp (key, "protocols") == 0) {
+ if (parse_protocols (value) == -1)
+ return -1;
+ }
+
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Check the user did pass a url parameter. */
+static int
+curl_config_complete (void)
+{
+ if (url == NULL) {
+ nbdkit_error ("you must supply the url=<URL> parameter "
+ "after the plugin name on the command line");
+ return -1;
+ }
+
+ return 0;
+}
+
+#define curl_config_help \
+ "cookie=<COOKIE> Set HTTP/HTTPS cookies.\n" \
+ "password=<PASSWORD> The password for the user account.\n" \
+ "protocols=PROTO,PROTO,.. Limit protocols allowed.\n" \
+ "proxy-password=<PASSWORD> The proxy password.\n" \
+ "proxy-user=<USER> The proxy user.\n" \
+ "timeout=<TIMEOUT> Set the timeout for requests (seconds).\n" \
+ "sslverify=false Do not verify SSL certificate of remote host.\n" \
+ "unix-socket-path=<PATH> Open Unix domain socket instead of TCP/IP.\n" \
+ "url=<URL> (required) The disk image URL to serve.\n" \
+ "user=<USER> The user to log in as."
+
+/* The per-connection handle. */
+struct curl_handle {
+ CURL *c;
+ bool accept_range;
+ int64_t exportsize;
+ char errbuf[CURL_ERROR_SIZE];
+ char *write_buf;
+ uint32_t write_count;
+ const char *read_buf;
+ uint32_t read_count;
+};
+
+/* Translate CURLcode to nbdkit_error. */
+#define display_curl_error(h, r, fs, ...) \
+ do { \
+ nbdkit_error ((fs ": %s: %s"), ## __VA_ARGS__, \
+ curl_easy_strerror ((r)), (h)->errbuf); \
+ } while (0)
+
+static size_t header_cb (void *ptr, size_t size, size_t nmemb, void *opaque);
+static size_t write_cb (char *ptr, size_t size, size_t nmemb, void *opaque);
+static size_t read_cb (void *ptr, size_t size, size_t nmemb, void *opaque);
+
+/* Create the per-connection handle. */
+static void *
+curl_open (int readonly)
+{
+ struct curl_handle *h;
+ CURLcode r;
+ double d;
+
+ h = calloc (1, sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("calloc: %m");
+ return NULL;
+ }
+
+ h->c = curl_easy_init ();
+ if (h->c == NULL) {
+ nbdkit_error ("curl_easy_init: failed: %m");
+ goto err;
+ }
+
+ nbdkit_debug ("opened libcurl easy handle");
+
+ /* Note this writes the output to stderr directly. We should
+ * consider using CURLOPT_DEBUGFUNCTION so we can handle it with
+ * nbdkit_debug.
+ */
+ curl_easy_setopt (h->c, CURLOPT_VERBOSE, curl_debug_verbose);
+
+ curl_easy_setopt (h->c, CURLOPT_ERRORBUFFER, h->errbuf);
+
+ r = CURLE_OK;
+ if (unix_socket_path) {
+#if HAVE_CURLOPT_UNIX_SOCKET_PATH
+ r = curl_easy_setopt (h->c, CURLOPT_UNIX_SOCKET_PATH, unix_socket_path);
+#else
+ r = CURLE_UNKNOWN_OPTION;
+#endif
+ }
+ if (r != CURLE_OK) {
+ display_curl_error (h, r, "curl_easy_setopt: CURLOPT_UNIX_SOCKET_PATH");
+ goto err;
+ }
+
+ r = curl_easy_setopt (h->c, CURLOPT_URL, url);
+ if (r != CURLE_OK) {
+ display_curl_error (h, r, "curl_easy_setopt: CURLOPT_URL [%s]", url);
+ goto err;
+ }
+
+ nbdkit_debug ("set libcurl URL: %s", url);
+
+ curl_easy_setopt (h->c, CURLOPT_AUTOREFERER, 1);
+ curl_easy_setopt (h->c, CURLOPT_FOLLOWLOCATION, 1);
+ curl_easy_setopt (h->c, CURLOPT_FAILONERROR, 1);
+ if (protocols != CURLPROTO_ALL) {
+ curl_easy_setopt (h->c, CURLOPT_PROTOCOLS, protocols);
+ curl_easy_setopt (h->c, CURLOPT_REDIR_PROTOCOLS, protocols);
+ }
+ if (timeout > 0)
+ curl_easy_setopt (h->c, CURLOPT_TIMEOUT, timeout);
+ if (!sslverify) {
+ curl_easy_setopt (h->c, CURLOPT_SSL_VERIFYPEER, 0L);
+ curl_easy_setopt (h->c, CURLOPT_SSL_VERIFYHOST, 0L);
+ }
+ if (user)
+ curl_easy_setopt (h->c, CURLOPT_USERNAME, user);
+ if (password)
+ curl_easy_setopt (h->c, CURLOPT_PASSWORD, password);
+ if (proxy_user)
+ curl_easy_setopt (h->c, CURLOPT_PROXYUSERNAME, proxy_user);
+ if (proxy_password)
+ curl_easy_setopt (h->c, CURLOPT_PROXYPASSWORD, proxy_password);
+ if (cookie)
+ curl_easy_setopt (h->c, CURLOPT_COOKIE, cookie);
+
+ /* Get the file size and also whether the remote HTTP server
+ * supports byte ranges.
+ */
+ h->accept_range = false;
+ curl_easy_setopt (h->c, CURLOPT_NOBODY, 1); /* No Body, not nobody! */
+ curl_easy_setopt (h->c, CURLOPT_HEADERFUNCTION, header_cb);
+ curl_easy_setopt (h->c, CURLOPT_HEADERDATA, h);
+ r = curl_easy_perform (h->c);
+ if (r != CURLE_OK) {
+ display_curl_error (h, r,
+ "problem doing HEAD request to fetch size of URL [%s]",
+ url);
+ goto err;
+ }
+
+ r = curl_easy_getinfo (h->c, CURLINFO_CONTENT_LENGTH_DOWNLOAD, &d);
+ if (r != CURLE_OK) {
+ display_curl_error (h, r, "could not get length of remote file [%s]", url);
+ goto err;
+ }
+
+ if (d == -1) {
+ nbdkit_error ("could not get length of remote file [%s], "
+ "is the URL correct?", url);
+ goto err;
+ }
+
+ h->exportsize = (size_t) d;
+ nbdkit_debug ("content length: %" PRIi64, h->exportsize);
+
+ if (strncasecmp (url, "http://", strlen ("http://")) == 0 ||
+ strncasecmp (url, "https://", strlen ("https://")) == 0) {
+ if (!h->accept_range) {
+ nbdkit_error ("server does not support 'range' (byte range) requests");
+ goto err;
+ }
+
+ nbdkit_debug ("accept range supported (for HTTP/HTTPS)");
+ }
+
+ /* Get set up for reading and writing. */
+ curl_easy_setopt (h->c, CURLOPT_HEADERFUNCTION, NULL);
+ curl_easy_setopt (h->c, CURLOPT_HEADERDATA, NULL);
+ curl_easy_setopt (h->c, CURLOPT_WRITEFUNCTION, write_cb);
+ curl_easy_setopt (h->c, CURLOPT_WRITEDATA, h);
+ if (!readonly) {
+ curl_easy_setopt (h->c, CURLOPT_READFUNCTION, read_cb);
+ curl_easy_setopt (h->c, CURLOPT_READDATA, h);
+ }
+
+ nbdkit_debug ("returning new handle %p", h);
+
+ return h;
+
+ err:
+ if (h->c)
+ curl_easy_cleanup (h->c);
+ free (h);
+ return NULL;
+}
+
+static size_t
+header_cb (void *ptr, size_t size, size_t nmemb, void *opaque)
+{
+ struct curl_handle *h = opaque;
+ size_t realsize = size * nmemb;
+ size_t len;
+ const char *accept_line = "Accept-Ranges: bytes";
+ const char *line = ptr;
+
+ if (realsize >= strlen (accept_line) &&
+ strncmp (line, accept_line, strlen (accept_line)) == 0)
+ h->accept_range = true;
+
+ /* Useful to print the server headers when debugging. However we
+ * must strip off trailing \r?\n from each line.
+ */
+ len = realsize;
+ if (len > 0 && line[len-1] == '\n')
+ len--;
+ if (len > 0 && line[len-1] == '\r')
+ len--;
+ if (len > 0)
+ nbdkit_debug ("S: %.*s", (int) len, line);
+
+ return realsize;
+}
+
+/* Free up the per-connection handle. */
+static void
+curl_close (void *handle)
+{
+ struct curl_handle *h = handle;
+
+ curl_easy_cleanup (h->c);
+ free (h);
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS
+
+/* Get the file size. */
+static int64_t
+curl_get_size (void *handle)
+{
+ struct curl_handle *h = handle;
+
+ return h->exportsize;
+}
+
+/* Read data from the remote server. */
+static int
+curl_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ struct curl_handle *h = handle;
+ CURLcode r;
+ char range[128];
+
+ /* Tell the write_cb where we want the data to be written. write_cb
+ * will update this if the data comes in multiple sections.
+ */
+ h->write_buf = buf;
+ h->write_count = count;
+
+ curl_easy_setopt (h->c, CURLOPT_HTTPGET, 1);
+
+ /* Make an HTTP range request. */
+ snprintf (range, sizeof range, "%" PRIu64 "-%" PRIu64,
+ offset, offset + count);
+ curl_easy_setopt (h->c, CURLOPT_RANGE, range);
+
+ /* The assumption here is that curl will look after timeouts. */
+ r = curl_easy_perform (h->c);
+ if (r != CURLE_OK) {
+ display_curl_error (h, r, "pread: curl_easy_perform");
+ return -1;
+ }
+
+ /* Could use curl_easy_getinfo here to obtain further information
+ * about the connection.
+ */
+
+ /* As far as I understand the cURL API, this should never happen. */
+ assert (h->write_count == 0);
+
+ return 0;
+}
+
+static size_t
+write_cb (char *ptr, size_t size, size_t nmemb, void *opaque)
+{
+ struct curl_handle *h = opaque;
+ size_t orig_realsize = size * nmemb;
+ size_t realsize = orig_realsize;
+
+ assert (h->write_buf);
+
+ /* Don't read more than the requested amount of data, even if the
+ * server or libcurl sends more.
+ */
+ if (realsize > h->write_count)
+ realsize = h->write_count;
+
+ memcpy (h->write_buf, ptr, realsize);
+
+ h->write_count -= realsize;
+ h->write_buf += realsize;
+
+ return orig_realsize;
+}
+
+/* Write data to the remote server. */
+static int
+curl_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset)
+{
+ struct curl_handle *h = handle;
+ CURLcode r;
+ char range[128];
+
+ /* Tell the read_cb where we want the data to be read from. read_cb
+ * will update this if the data comes in multiple sections.
+ */
+ h->read_buf = buf;
+ h->read_count = count;
+
+ curl_easy_setopt (h->c, CURLOPT_UPLOAD, 1);
+
+ /* Make an HTTP range request. */
+ snprintf (range, sizeof range, "%" PRIu64 "-%" PRIu64,
+ offset, offset + count);
+ curl_easy_setopt (h->c, CURLOPT_RANGE, range);
+
+ /* The assumption here is that curl will look after timeouts. */
+ r = curl_easy_perform (h->c);
+ if (r != CURLE_OK) {
+ display_curl_error (h, r, "pwrite: curl_easy_perform");
+ return -1;
+ }
+
+ /* Could use curl_easy_getinfo here to obtain further information
+ * about the connection.
+ */
+
+ /* As far as I understand the cURL API, this should never happen. */
+ assert (h->read_count == 0);
+
+ return 0;
+}
+
+static size_t
+read_cb (void *ptr, size_t size, size_t nmemb, void *opaque)
+{
+ struct curl_handle *h = opaque;
+ size_t realsize = size * nmemb;
+
+ assert (h->read_buf);
+ if (realsize > h->read_count)
+ realsize = h->read_count;
+
+ memcpy (ptr, h->read_buf, realsize);
+
+ h->read_count -= realsize;
+ h->read_buf += realsize;
+
+ return realsize;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "curl",
+ .version = PACKAGE_VERSION,
+ .load = curl_load,
+ .unload = curl_unload,
+ .config = curl_config,
+ .config_complete = curl_config_complete,
+ .config_help = curl_config_help,
+ .magic_config_key = "url",
+ .open = curl_open,
+ .close = curl_close,
+ .get_size = curl_get_size,
+ .pread = curl_pread,
+ .pwrite = curl_pwrite,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+=head1 NAME
+
+nbdkit-curl-plugin - nbdkit curl plugin (HTTP, FTP and other protocols)
+
+=head1 SYNOPSIS
+
+ nbdkit -r curl [url=]http://example.com/disk.img
+
+=head1 DESCRIPTION
+
+C<nbdkit-curl-plugin> is a plugin for L<nbdkit(1)> which turns content
+served over HTTP, FTP, and more, into a Network Block Device. It uses
+a library called libcurl (also known as cURL) to read data from URLs.
+The exact list of protocols that libcurl can handle depends on how it
+was compiled, but most versions will handle HTTP, HTTPS, FTP, FTPS and
+more (see: S<C<curl -V>>).
+
+B<Note:> This plugin supports writes. However for HTTP, you may not
+want nbdkit to issue PUT requests to the remote server (which probably
+doesn't understand them). To force nbdkit to use a readonly
+connection, pass the I<-r> flag.
+
+Although this plugin can access SFTP (ie. SSH) servers, it is much
+better to use L<nbdkit-ssh-plugin(1)>.
+
+=head1 EXAMPLE
+
+ nbdkit -r curl http://example.com/disk.img
+
+serves the remote disk image as NBD on TCP port 10809 (to control
+ports and protocols used to serve NBD see L<nbdkit(1)>).
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<cookie=>COOKIE
+
+=item B<cookie=+>FILENAME
+
+Set a cookie in the request header when connecting to the remote
+server.
+
+A typical example is:
+
+ cookie='vmware_soap_session="52a01262-bf93-ccce-d379-8dabb3e55560"'
+
+This option can be used at most once. It only works for HTTP and
+HTTPS transports. To set multiple cookies you must concatenate them
+yourself, eg:
+
+ cookie='name1=content1; name2=content2;'
+
+See L<CURLOPT_COOKIE(3)> for more information about this.
+
+If the cookie is used for authentication then passing it on the
+command line is not secure on shared machines. Use the alternate
+C<+FILENAME> syntax to pass it in a file.
+
+=item B<password=>PASSWORD
+
+Set the password to use when connecting to the remote server.
+
+Note that passing this on the command line is not secure on shared
+machines.
+
+=item B<password=->
+
+Ask for the password (interactively) when nbdkit starts up.
+
+=item B<password=+>FILENAME
+
+Read the password from the named file. This is the most secure method
+to supply a password, as long as you set the permissions on the file
+appropriately.
+
+=item B<protocols=>PROTO,PROTO,...
+
+Limit the protocols that are allowed in the URL. Use this option for
+extra security if the URL comes from an untrusted source and you want
+to avoid security isues in the more obscure protocols that curl
+supports. (See qemu CVE-2013-0249 for an example of a security bug
+introduced by allowing unrestricted protocols).
+
+For example if you only intend HTTP and HTTPS URLs to be used, then
+add this parameter: C<protocols=http,https>
+
+The value of this parameter is a comma-separated list of protocols.
+The following protocols are known: B<dict>, B<file>, B<ftp>, B<ftps>,
+B<gopher>, B<http>, B<https>, B<imap>, B<imaps>, B<ldap>, B<ldaps>,
+B<pop3>, B<pop3s>, B<rtmp>, B<rtmpe>, B<rtmps>, B<rtmpt>, B<rtmpte>,
+B<rtmpts>, B<rtsp>, B<scp>, B<sftp>, B<smb>, B<smbs>, B<smtp>,
+B<smtps>, B<telnet>, B<tftp>.
+
+The default is to allow any protocol.
+
+=item B<proxy-password=>PASSWORD
+
+=item B<proxy-password=->
+
+=item B<proxy-password=+>FILENAME
+
+=item B<proxy-user=>USERNAME
+
+Set the proxy username and password.
+
+=item B<sslverify=false>
+
+Don't verify the SSL certificate of the remote host.
+
+=item B<timeout=>SECS
+
+Set the timeout for requests.
+
+=item B<timeout=0>
+
+Use the default libcurl timeout for requests.
+
+=item B<unix-socket-path=>PATH
+
+Instead of using a TCP connection, connect to the server over the
+named Unix domain socket. See
+L<curl_easy_setopt(3)/CURLOPT_UNIX_SOCKET_PATH>.
+
+=item [B<url=>]URL
+
+The URL of the remote disk image. This is passed to libcurl directly
+via L<curl_easy_setopt(3)/CURLOPT_URL>.
+
+This parameter is required.
+
+C<url=> is a magic config key and may be omitted in most cases.
+See L<nbdkit(1)/Magic parameters>.
+
+=item B<user=>USERNAME
+
+Set the username to use when connecting to the remote server. This
+may also be set in the URL (eg. C<http://foo@example.com/disk.img>)
+
+=back
+
+=head1 DEBUG FLAG
+
+=over 4
+
+=item B<-D curl.verbose=1>
+
+This enables very verbose curl debugging. See L<CURLOPT_VERBOSE(3)>.
+This is mainly useful if you suspect there is a bug inside libcurl
+itself.
+
+=back
+
+=head1 SEE ALSO
+
+L<curl(1)>,
+L<libcurl(3)>,
+L<CURLOPT_COOKIE(3)>
+L<CURLOPT_VERBOSE(3)>,
+L<nbdkit(1)>,
+L<nbdkit-readahead-filter(1)>,
+L<nbdkit-ssh-plugin(1)>,
+L<nbdkit-plugin(3)>,
+L<http://curl.haxx.se>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+Parts derived from Alexander Graf's "QEMU Block driver for CURL images".
+
+=head1 COPYRIGHT
+
+Copyright (C) 2014 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = \
+ disk2data.pl \
+ nbdkit-data-plugin.pod
+
+plugin_LTLIBRARIES = nbdkit-data-plugin.la
+
+nbdkit_data_plugin_la_SOURCES = \
+ data.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_data_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include \
+ -I$(top_srcdir)/common/sparse
+nbdkit_data_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS) \
+ $(GNUTLS_CFLAGS)
+nbdkit_data_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+nbdkit_data_plugin_la_LIBADD = \
+ $(top_builddir)/common/sparse/libsparse.la \
+ $(GNUTLS_LIBS)
+
+if HAVE_POD
+
+man_MANS = nbdkit-data-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-data-plugin.1: nbdkit-data-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+ true; \
+ else \
+ false; \
+ fi; \
+}
+am__make_running_with_option = \
+ case $${target_option-} in \
+ ?) ;; \
+ *) echo "am__make_running_with_option: internal error: invalid" \
+ "target option '$${target_option-}' specified" >&2; \
+ exit 1;; \
+ esac; \
+ has_opt=no; \
+ sane_makeflags=$$MAKEFLAGS; \
+ if $(am__is_gnu_make); then \
+ sane_makeflags=$$MFLAGS; \
+ else \
+ case $$MAKEFLAGS in \
+ *\\[\ \ ]*) \
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+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-data-plugin.1: nbdkit-data-plugin.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+
+#include <pthread.h>
+
+#if defined(HAVE_GNUTLS) && defined(HAVE_GNUTLS_BASE64_DECODE2)
+#include <gnutls/gnutls.h>
+#endif
+
+#include <nbdkit-plugin.h>
+
+#include "sparse.h"
+
+/* If raw|base64|data parameter seen. */
+static int data_seen = 0;
+
+/* size= parameter on the command line, -1 if not set. */
+static int64_t size = -1;
+
+/* Size of data specified on the command line. */
+static int64_t data_size = -1;
+
+/* Sparse array - the lock must be held when accessing this from
+ * connected callbacks.
+ */
+static struct sparse_array *sa;
+static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+
+/* Debug directory operations (-D data.dir=1). */
+int data_debug_dir;
+
+static void
+data_load (void)
+{
+ sa = alloc_sparse_array (data_debug_dir);
+ if (sa == NULL) {
+ perror ("malloc");
+ exit (EXIT_FAILURE);
+ }
+}
+
+/* On unload, free the sparse array. */
+static void
+data_unload (void)
+{
+ free_sparse_array (sa);
+}
+
+/* Parse the base64 parameter. */
+static int
+read_base64 (const char *value)
+{
+#if defined(HAVE_GNUTLS) && defined(HAVE_GNUTLS_BASE64_DECODE2)
+ gnutls_datum_t in, out;
+ int err;
+
+ in.data = (unsigned char *) value;
+ in.size = strlen (value);
+ err = gnutls_base64_decode2 (&in, &out);
+ if (err != GNUTLS_E_SUCCESS) {
+ nbdkit_error ("base64: %s", gnutls_strerror (err));
+ return -1;
+ }
+
+ if (sparse_array_write (sa, out.data, out.size, 0) == -1)
+ return -1;
+ free (out.data);
+ return 0;
+#else
+ nbdkit_error ("base64 is not supported in this build of the plugin");
+ return -1;
+#endif
+}
+
+/* Store file at current offset in the sparse array, updating
+ * the offset.
+ */
+static int
+store_file (const char *filename, int64_t *offset)
+{
+ FILE *fp;
+ char buf[BUFSIZ];
+ size_t n;
+
+ fp = fopen (filename, "r");
+ if (fp == NULL) {
+ nbdkit_error ("%s: %m", filename);
+ return -1;
+ }
+
+ while (!feof (fp)) {
+ n = fread (buf, 1, BUFSIZ, fp);
+ if (n > 0) {
+ if (sparse_array_write (sa, buf, n, *offset) == -1) {
+ fclose (fp);
+ return -1;
+ }
+ }
+ if (ferror (fp)) {
+ nbdkit_error ("fread: %s: %m", filename);
+ fclose (fp);
+ return -1;
+ }
+ (*offset) += n;
+ }
+
+ if (fclose (fp) == EOF) {
+ nbdkit_error ("fclose: %s: %m", filename);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Parse the data parameter. */
+static int
+read_data (const char *value)
+{
+ int64_t offset = 0;
+ size_t i, len = strlen (value);
+
+ for (i = 0; i < len; ++i) {
+ int64_t j;
+ int n;
+ char c, cc[2];
+
+ if (sscanf (&value[i], " @%" SCNi64 "%n", &j, &n) == 1) {
+ if (j < 0) {
+ nbdkit_error ("data parameter @OFFSET must not be negative");
+ return -1;
+ }
+ i += n;
+ offset = j;
+ }
+ /* We need %1s for obscure reasons. sscanf " <%n" can return 0
+ * if nothing is matched, not only if the '<' is matched.
+ */
+ else if (sscanf (&value[i], " <%1s%n", cc, &n) == 1) {
+ char *filename;
+ size_t flen;
+
+ i += n-1;
+
+ /* The filename follows next in the string. */
+ flen = strcspn (&value[i], " \t\n");
+ if (flen == 0) {
+ nbdkit_error ("data parameter <FILE not a filename");
+ return -1;
+ }
+ filename = strndup (&value[i], flen);
+ if (filename == NULL) {
+ nbdkit_error ("strndup: %m");
+ return -1;
+ }
+ i += len;
+
+ if (store_file (filename, &offset) == -1) {
+ free (filename);
+ return -1;
+ }
+ free (filename);
+
+ if (data_size < offset)
+ data_size = offset;
+ }
+ else if (sscanf (&value[i], " %" SCNi64 "%n", &j, &n) == 1) {
+ if (j < 0 || j > 255) {
+ nbdkit_error ("data parameter BYTE must be in the range 0..255");
+ return -1;
+ }
+ i += n;
+
+ if (data_size < offset+1)
+ data_size = offset+1;
+
+ /* Store the byte. */
+ c = j;
+ if (sparse_array_write (sa, &c, 1, offset) == -1)
+ return -1;
+ offset++;
+ }
+ /* We have to have a rule to skip just whitespace so that
+ * whitespace is permitted at the end of the string.
+ */
+ else if (sscanf (&value[i], " %n", &n) == 0) {
+ i += n;
+ }
+ else {
+ nbdkit_error ("data parameter: parsing error at offset %zu", i);
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static int
+data_config (const char *key, const char *value)
+{
+ int64_t r;
+
+ if (strcmp (key, "size") == 0) {
+ r = nbdkit_parse_size (value);
+ if (r == -1)
+ return -1;
+ size = r;
+ }
+ else if (strcmp (key, "raw") == 0 ||
+ strcmp (key, "base64") == 0 ||
+ strcmp (key, "data") == 0) {
+ if (data_seen) {
+ nbdkit_error ("raw|base64|data parameter must be specified exactly once");
+ return -1;
+ }
+ data_seen = 1;
+
+ if (strcmp (key, "raw") == 0) {
+ data_size = strlen (value);
+ if (sparse_array_write (sa, value, data_size, 0) == -1)
+ return -1;
+ }
+ else if (strcmp (key, "base64") == 0) {
+ if (read_base64 (value) == -1)
+ return -1;
+ }
+ else if (strcmp (key, "data") == 0) {
+ if (read_data (value) == -1)
+ return -1;
+ }
+ else
+ abort (); /* cannot happen */
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Check the raw|base64|data was specified, and set the final size. */
+static int
+data_config_complete (void)
+{
+ if (!data_seen) {
+ nbdkit_error ("raw|base64|data parameter was not specified");
+ return -1;
+ }
+
+ nbdkit_debug ("implicit data size: %" PRIi64, data_size);
+
+ /* If size == -1 it means the size= parameter was not given so we
+ * must use the data size.
+ */
+ if (size == -1)
+ size = data_size;
+ nbdkit_debug ("final size: %" PRIi64, size);
+
+ return 0;
+}
+
+#define data_config_help \
+ "data|raw|base64=... Specify disk data on the command line\n" \
+ "size=<SIZE> (required) Size of the backing disk"
+
+/* Provide a way to detect if the base64 feature is supported. */
+static void
+data_dump_plugin (void)
+{
+#if defined(HAVE_GNUTLS) && defined(HAVE_GNUTLS_BASE64_DECODE2)
+ printf ("data_base64=yes\n");
+#endif
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* No meaning, just used as the address for the handle. */
+static int dh;
+
+/* Create the per-connection handle. */
+static void *
+data_open (int readonly)
+{
+ return &dh;
+}
+
+/* Get the disk size. */
+static int64_t
+data_get_size (void *handle)
+{
+ return size;
+}
+
+/* Serves the same data over multiple connections. */
+static int
+data_can_multi_conn (void *handle)
+{
+ return 1;
+}
+
+/* Read data. */
+static int
+data_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ pthread_mutex_lock (&lock);
+ sparse_array_read (sa, buf, count, offset);
+ pthread_mutex_unlock (&lock);
+ return 0;
+}
+
+/* Write data. */
+static int
+data_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset)
+{
+ int r;
+
+ pthread_mutex_lock (&lock);
+ r = sparse_array_write (sa, buf, count, offset);
+ pthread_mutex_unlock (&lock);
+ return r;
+}
+
+/* Zero. */
+static int
+data_zero (void *handle, uint32_t count, uint64_t offset, int may_trim)
+{
+ pthread_mutex_lock (&lock);
+ sparse_array_zero (sa, count, offset);
+ pthread_mutex_unlock (&lock);
+ return 0;
+}
+
+/* Trim (same as zero). */
+static int
+data_trim (void *handle, uint32_t count, uint64_t offset)
+{
+ pthread_mutex_lock (&lock);
+ sparse_array_zero (sa, count, offset);
+ pthread_mutex_unlock (&lock);
+ return 0;
+}
+
+/* Extents. */
+static int
+data_extents (void *handle, uint32_t count, uint64_t offset,
+ uint32_t flags, struct nbdkit_extents *extents)
+{
+ int r;
+
+ pthread_mutex_lock (&lock);
+ r = sparse_array_extents (sa, count, offset, extents);
+ pthread_mutex_unlock (&lock);
+ return r;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "data",
+ .version = PACKAGE_VERSION,
+ .load = data_load,
+ .unload = data_unload,
+ .config = data_config,
+ .config_complete = data_config_complete,
+ .config_help = data_config_help,
+ .dump_plugin = data_dump_plugin,
+ .open = data_open,
+ .get_size = data_get_size,
+ .can_multi_conn = data_can_multi_conn,
+ .pread = data_pread,
+ .pwrite = data_pwrite,
+ .zero = data_zero,
+ .trim = data_trim,
+ .extents = data_extents,
+ /* In this plugin, errno is preserved properly along error return
+ * paths from failed system calls.
+ */
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+#!/usr/bin/env perl
+# -*- perl -*-
+# Convert disk image or file to nbdkit-data-plugin command line.
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+=pod
+
+=head1 NAME
+
+disk2data.pl - convert disk image or file to nbdkit-data-plugin command line
+
+=head1 SYNOPSIS
+
+ ./disk2data.pl DISK
+
+=head1 EXAMPLE
+
+=head2 Create a 1 MB MBR-partitioned disk command line
+
+ $ rm -f disk
+ $ truncate -s 1M disk
+ $ echo start=1 | sfdisk disk
+ $ ./disk2data.pl disk
+
+The above command will print out the full nbdkit command to use,
+similar to:
+
+ $ nbdkit data data="
+ @0x1b8 202 127 39 107 0 0 0 0 2 0 131 32 32 0 1 0 0 0 255 7
+ @0x1fe 85 170
+ " size=1048576
+
+=head2 Create a 1 GB GPT-partitioned disk command line
+
+ $ rm -f disk
+ $ truncate -s 1G disk
+ $ sgdisk -n 1 disk
+ $ ./disk2data.pl disk
+
+A command similar to this is printed:
+
+ $ nbdkit data data="
+ @0x1c0 2 0 238 138 8 130 1 0 0 0 255 255 31
+ @0x1fe 85 170 69 70 73 32 80 65 82 84 0 0 1 0 92 0 0 0 110 92 89 223
+ 0 0 0 0 1 @0x220 255 255 31 @0x228 34
+ @0x230 222 255 31 @0x238 159 149 54 193 83 188 210 70 172 3 15 147
+ 241 183 1 61 2 @0x250 128 0 0 0 128 0 0 0 193 75 104 199
+ @0x400 175 61 198 15 131 132 114 71 142 121 61 105 216 71 125 228 237
+ 59 243 84 97 170 76 75 179 212 47 233 110 221 119 58 0 8
+ @0x428 222 255 31 @0x3fffbe00 175 61 198 15 131 132 114 71 142 121 61
+ 105 216 71 125 228 237 59 243 84 97 170 76 75 179 212 47 233 110 221
+ 119 58 0 8 @0x3fffbe28 222 255 31
+ @0x3ffffe00 69 70 73 32 80 65 82 84 0 0 1 0 92 0 0 0 178 45 163 71 0
+ 0 0 0 255 255 31 @0x3ffffe20 1
+ @0x3ffffe28 34 @0x3ffffe30 222 255 31
+ @0x3ffffe38 159 149 54 193 83 188 210 70 172 3 15 147 241 183 1 61
+ 223 255 31 @0x3ffffe50 128 0 0 0 128 0 0 0 193 75 104 199
+ " size=1073741824
+
+=head1 DESCRIPTION
+
+C<disk2data.pl> is a simple script which converts a disk image or file
+to the C<data="..."> format used by L<nbdkit-data-plugin(1)>.
+
+Most operating systems have command line size limits which are quite a
+lot smaller than any desirable disk image, so specifying a large,
+fully populated disk image on the command line is not be possible.
+You can only use this with small or very sparse disk images.
+
+=head1 SEE ALSO
+
+L<nbdkit-data-plugin(1)>,
+L<nbdkit(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
+
+=cut
+
+use strict;
+
+die "$0: expecting a single disk image parameter\n" unless @ARGV == 1;
+
+my $disk = $ARGV[0];
+my $size = (stat ($disk))[7];
+
+open FH, $disk or die "$0: $disk: $!\n";
+
+print "nbdkit data data=\"\n ";
+my $col = 2;
+
+my $offset = 0;
+my $c;
+
+while ($offset < $size) {
+ my $old_offset = $offset;
+ my $r;
+
+ # Find the next non-zero data.
+ while ($r = read FH, $c, 1) {
+ $offset++;
+ last unless $c eq "\0";
+ }
+ die "$0: $disk: read: $!" unless defined $r;
+
+ # End of the file?
+ last if $r == 0;
+
+ # Go back one character to unconsume the !\0.
+ seek FH, -1, 1;
+ $offset--;
+
+ # Did we move forwards in that loop? If so we must emit a new
+ # offset. But if we only moved forward a few bytes then emitting
+ # zeroes is more efficient.
+ my $d = $offset - $old_offset;
+ if ($d <= 4) {
+ for (my $i = 0; $i < $d; ++$i) {
+ emit ("0");
+ }
+ }
+ else {
+ emit (sprintf ('@0x%x', $offset));
+ }
+
+ # Emit non-zero data.
+ while ($r = read FH, $c, 1) {
+ $offset++;
+ last if $c eq "\0";
+ emit (sprintf ("%d", ord ($c)));
+ }
+ die "$0: $disk: read: $!" unless defined $r;
+
+ # End of the file?
+ last if $r == 0;
+
+ # Go back one character to unconsume the \0.
+ seek FH, -1, 1;
+ $offset--;
+}
+
+if ($col > 2) {
+ print "\n ";
+}
+# It would be possible to be smarter about when to print the size, but
+# it's safest and simplest to always print it.
+print "\" size=$size\n";
+
+sub emit
+{
+ my $s = shift;
+ my $is_offset = substr ($s, 0, 1) eq "@";
+ my $n = length $s;
+
+ # This means we prefer to start an offset on a new line if the
+ # line is already over half way across.
+ my $limit;
+ if ($is_offset) { $limit = 40 } else { $limit = 72 }
+
+ if ($col + $n + 1 > $limit) {
+ print "\n ";
+ $col = 2;
+ }
+
+ print $s, " ";
+ $col += $n + 1;
+}
--- /dev/null
+=head1 NAME
+
+nbdkit-data-plugin - nbdkit plugin for serving data from the command line
+
+=head1 SYNOPSIS
+
+ nbdkit data data="0 1 2 3 @0x1fe 0x55 0xaa" [size=size]
+
+ nbdkit data base64="aGVsbG8gbmJka2l0IHVzZXI=" [size=size]
+
+ nbdkit data raw="binary_data" [size=size]
+
+=head1 DESCRIPTION
+
+C<nbdkit-data-plugin> is a plugin for L<nbdkit(1)> which serves a
+small amount of data specified directly on the command line. The
+plugin gets its name from the C<data:> URI scheme used by web
+browsers. This is mainly useful for testing NBD clients.
+
+You can serve data read-only using the I<-r> flag, or read-write. Any
+writes are thrown away when nbdkit exits.
+
+Most operating systems have command line size limits which are quite a
+lot smaller than any desirable disk image, so specifying a large,
+fully populated disk image on the command line would not be possible.
+However you can specify a small amount of data at the beginning of the
+image, possibly followed by zeroes (using the C<size> parameter to pad
+the image to the full size), or use the C<data> parameter creatively
+to make mostly sparse disk images.
+
+The C<size> parameter can specify any virtual size up to the maximum
+supported by nbdkit (S<2⁶³-1 bytes>).
+
+=head1 EXAMPLES
+
+=over 4
+
+=item Create a 1 MB empty disk:
+
+ nbdkit data raw= size=1M
+
+(This is a contrived example, it is better to use
+L<nbdkit-memory-plugin(1)> for real applications.)
+
+=item Create a 1 MB disk with some nonsense data at the beginning:
+
+ nbdkit data base64=MTIz size=1M
+
+The above command serves the bytes C<0x31 0x32 0x33> (which is the
+base64 decoding of C<MTIz>), followed by S<1M - 3 bytes> of zeroes.
+
+=item Create a 1 MB disk with one empty MBR-formatted partition:
+
+ nbdkit data data="
+ @0x1b8 178 190 207 221 0 0 0 0 2 0 131 32 32 0 1 0 0 0 255 7
+ @0x1fe 85 170
+ " size=1048576
+
+This example was created by running:
+
+ $ rm -f disk
+ $ truncate -s 1M disk
+ $ echo start=1 | sfdisk disk
+ Device Boot Start End Sectors Size Id Type
+ disk1 1 2047 2047 1023.5K 83 Linux
+ $ ./disk2data.pl disk
+
+The C<disk2data.pl> script is provided in the nbdkit sources
+(L<https://github.com/libguestfs/nbdkit/blob/master/plugins/data/disk2data.pl>).
+
+=item Create a disk with a partition from another file:
+
+ nbdkit data data="
+ @0x1b8 178 190 207 221 0 0 0 0 2 0 131 32 32 0 1 0 0 0 255 7
+ @0x1fe 85 170
+ @0x200 <partition-data
+ " size=1048576
+
+The C<E<lt>FILE> syntax is used to include a file of binary data.
+Note that L<nbdkit-partitioning-plugin(1)> is easier to use and more
+flexible.
+
+=item Create a 7 EB (exabyte) disk with one empty GPT-formatted partition:
+
+The data plugin supports huge sparse virtual disks, up to the maximum
+size supported by nbdkit itself (S<2⁶³-1 bytes> =
+S<8 exabytes - 1 byte>). These cause all sorts of problems for
+software and so make excellent test cases. To partition such a huge
+disk requires the GPT (GUID Partition Table) format since MBR is
+limited to just 2 TB.
+
+ nbdkit data data="
+ @0x1c0 2 0 0xee 0xfe 0xff 0xff 0x01 0 0 0 0xff 0xff 0xff 0xff
+ @0x1fe 0x55 0xaa
+ @0x200 0x45 0x46 0x49 0x20 0x50 0x41 0x52 0x54
+ 0 0 1 0 0x5c 0 0 0
+ 0x9b 0xe5 0x6a 0xc5 0 0 0 0 1 0 0 0 0 0 0 0
+ 0xff 0xff 0xff 0xff 0xff 0xff 0x37 0 0x22 0 0 0 0 0 0 0
+ 0xde 0xff 0xff 0xff 0xff 0xff 0x37 0
+ 0x72 0xb6 0x9e 0x0c 0x6b 0x76 0xb0 0x4f
+ 0xb3 0x94 0xb2 0xf1 0x61 0xec 0xdd 0x3c 2 0 0 0 0 0 0 0
+ 0x80 0 0 0 0x80 0 0 0 0x79 0x8a 0xd0 0x7e 0 0 0 0
+ @0x400 0xaf 0x3d 0xc6 0x0f 0x83 0x84 0x72 0x47
+ 0x8e 0x79 0x3d 0x69 0xd8 0x47 0x7d 0xe4
+ 0xd5 0x19 0x46 0x95 0xe3 0x82 0xa8 0x4c
+ 0x95 0x82 0x7a 0xbe 0x1c 0xfc 0x62 0x90
+ 0x80 0 0 0 0 0 0 0 0x80 0xff 0xff 0xff 0xff 0xff 0x37 0
+ 0 0 0 0 0 0 0 0 0x70 0 0x31 0 0 0 0 0
+ @0x6fffffffffffbe00
+ 0xaf 0x3d 0xc6 0x0f 0x83 0x84 0x72 0x47
+ 0x8e 0x79 0x3d 0x69 0xd8 0x47 0x7d 0xe4
+ 0xd5 0x19 0x46 0x95 0xe3 0x82 0xa8 0x4c
+ 0x95 0x82 0x7a 0xbe 0x1c 0xfc 0x62 0x90
+ 0x80 0 0 0 0 0 0 0 0x80 0xff 0xff 0xff 0xff 0xff 0x37 0
+ 0 0 0 0 0 0 0 0 0x70 0 0x31 0 0 0 0 0
+ @0x6ffffffffffffe00
+ 0x45 0x46 0x49 0x20 0x50 0x41 0x52 0x54
+ 0 0 1 0 0x5c 0 0 0
+ 0x6c 0x76 0xa1 0xa0 0 0 0 0
+ 0xff 0xff 0xff 0xff 0xff 0xff 0x37 0
+ 1 0 0 0 0 0 0 0 0x22 0 0 0 0 0 0 0
+ 0xde 0xff 0xff 0xff 0xff 0xff 0x37 0
+ 0x72 0xb6 0x9e 0x0c 0x6b 0x76 0xb0 0x4f
+ 0xb3 0x94 0xb2 0xf1 0x61 0xec 0xdd 0x3c
+ 0xdf 0xff 0xff 0xff 0xff 0xff 0x37 0
+ 0x80 0 0 0 0x80 0 0 0 0x79 0x8a 0xd0 0x7e 0 0 0 0
+ " size=7E
+
+=back
+
+=head1 PARAMETERS
+
+Exactly one of the C<data>, C<base64> or C<raw> parameters must be
+supplied.
+
+=over 4
+
+=item B<data=>DATA
+
+Specify the disk data using a simple compact format. See
+L</DATA FORMAT> below.
+
+=item B<base64=>BASE64
+
+The C<base64> parameter can be used to supply binary data encoded in
+base64 on the command line.
+
+This is only supported if nbdkit was compiled with GnuTLS E<ge> 3.6.0.
+You can find out by checking if:
+
+ $ nbdkit data --dump-plugin
+
+contains:
+
+ data_base64=yes
+
+=item B<raw=>BINARY
+
+The C<raw> parameter can be used to supply raw binary data directly on
+the command line.
+
+It is usually quite difficult to do this unless you are running nbdkit
+from another program (see L<nbdkit-captive(1)>). One particular
+problem is that the data must not contain zero bytes (ie. C<\0>) since
+those will be processed in C to mean the end of the string. In almost
+all cases it is better to use base64 encoding or the custom C<data>
+format.
+
+=item B<size=>SIZE
+
+The data is truncated or extended to the size specified.
+
+This parameter is optional: If omitted the size is defined by the size
+of the C<data>, C<raw> or C<base64> parameter.
+
+=back
+
+=head1 DATA FORMAT
+
+The C<data> parameter lets you specify small disk images in a simple,
+compact format. It is a string containing a list of bytes which are
+written into the disk image sequentially. You can move the virtual
+offset where bytes are written using C<@offset>.
+
+For example:
+
+ nbdkit data data="0 1 2 3 @0x1fe 0x55 0xaa"
+
+creates a 0x200 = 512 byte (1 sector) image containing the four bytes
+C<0 1 2 3> at the start, and the two bytes C<0x55 0xaa> at the end of
+the sector, with the remaining 506 bytes in the middle being all
+zeroes.
+
+Fields in the string can be:
+
+=over 4
+
+=item B<@>OFFSET
+
+Moves the current offset to C<OFFSET>. The offset may be specified as
+either decimal, octal (prefixed by C<0>) or hexadecimal (prefixed by
+C<0x>).
+
+=item B<E<lt>>FILE
+
+Read the contents of F<FILE> into the disk image at the current
+offset. The offset is incremented by the size of the file. The
+filename can be a relative or absolute path, but cannot contain
+whitespace in the name.
+
+=item BYTE
+
+Write C<BYTE> at the current offset and advance the offset by 1 byte.
+The byte may be specified as either decimal, octal (prefixed by C<0>)
+or hexadecimal (prefixed by C<0x>).
+
+=back
+
+Whitespace between fields in the string is ignored.
+
+In the example above the size (512 bytes) is implied by the data. But
+you could additionally use the C<size> parameter to either truncate or
+extend (with zeroes) the disk image.
+
+=head2 disk2data.pl script
+
+This script can convert from small disk images into the data format
+described above.
+
+It is provided in the nbdkit sources. See
+L<https://github.com/libguestfs/nbdkit/blob/master/plugins/data/disk2data.pl>
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-captive(1)>,
+L<nbdkit-plugin(3)>,
+L<nbdkit-memory-plugin(1)>,
+L<nbdkit-null-plugin(1)>,
+L<nbdkit-partitioning-plugin(1)>,
+L<nbdkit-pattern-plugin(1)>,
+L<nbdkit-random-plugin(1)>,
+L<nbdkit-zero-plugin(1)>,
+L<https://github.com/libguestfs/nbdkit/blob/master/plugins/data/disk2data.pl>,
+L<https://en.wikipedia.org/wiki/Base64>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2013 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-example1-plugin.pod
+
+plugin_LTLIBRARIES = nbdkit-example1-plugin.la
+
+nbdkit_example1_plugin_la_SOURCES = \
+ example1.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_example1_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_example1_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_example1_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-example1-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-example1-plugin.1: nbdkit-example1-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2013 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+ true; \
+ else \
+ false; \
+ fi; \
+}
+am__make_running_with_option = \
+ case $${target_option-} in \
+ ?) ;; \
+ *) echo "am__make_running_with_option: internal error: invalid" \
+ "target option '$${target_option-}' specified" >&2; \
+ exit 1;; \
+ esac; \
+ has_opt=no; \
+ sane_makeflags=$$MAKEFLAGS; \
+ if $(am__is_gnu_make); then \
+ sane_makeflags=$$MFLAGS; \
+ else \
+ case $$MAKEFLAGS in \
+ *\\[\ \ ]*) \
+ bs=\\; \
+ sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+ | sed "s/$$bs$$bs[$$bs $$bs ]*//g"`;; \
+ esac; \
+ fi; \
+ skip_next=no; \
+ strip_trailopt () \
+ { \
+ flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
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+@HAVE_POD_TRUE@nbdkit-example1-plugin.1: nbdkit-example1-plugin.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* example1:
+ *
+ * This is (almost) the most minimal nbdkit plugin possible. It
+ * serves, readonly, from memory, a static blob of data.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <nbdkit-plugin.h>
+
+/* This looks like a 100MB disk with one empty partition. */
+static unsigned char bootsector[512] = {
+ 0xfa, 0xb8, 0x00, 0x10, 0x8e, 0xd0, 0xbc, 0x00,
+ 0xb0, 0xb8, 0x00, 0x00, 0x8e, 0xd8, 0x8e, 0xc0,
+ 0xfb, 0xbe, 0x00, 0x7c, 0xbf, 0x00, 0x06, 0xb9,
+ 0x00, 0x02, 0xf3, 0xa4, 0xea, 0x21, 0x06, 0x00,
+ 0x00, 0xbe, 0xbe, 0x07, 0x38, 0x04, 0x75, 0x0b,
+ 0x83, 0xc6, 0x10, 0x81, 0xfe, 0xfe, 0x07, 0x75,
+ 0xf3, 0xeb, 0x16, 0xb4, 0x02, 0xb0, 0x01, 0xbb,
+ 0x00, 0x7c, 0xb2, 0x80, 0x8a, 0x74, 0x01, 0x8b,
+ 0x4c, 0x02, 0xcd, 0x13, 0xea, 0x00, 0x7c, 0x00,
+ 0x00, 0xeb, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0xe1, 0x5b, 0x02, 0x00, 0x00, 0x00, 0x00, 0x02,
+ 0x03, 0x00, 0x83, 0xbc, 0x31, 0x0c, 0x80, 0x00,
+ 0x00, 0x00, 0x01, 0x1f, 0x03, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xaa
+};
+static unsigned char data[104857600];
+
+/* A '.load' callback is not generally required, but in this case we
+ * need to initialize the 'data' array once when the plugin is loaded
+ * into nbdkit.
+ */
+static void
+example1_load (void)
+{
+ memcpy (data, bootsector, sizeof bootsector);
+}
+
+/* Because this plugin can only serve readonly, we can ignore the
+ * 'readonly' parameter.
+ */
+static void *
+example1_open (int readonly)
+{
+ /* In this trivial example we don't care about per-connection
+ * handles because every connection serves up the same content and
+ * there is no connection state.
+ */
+ return NBDKIT_HANDLE_NOT_NEEDED;
+}
+
+/* Size of the data we are going to serve. */
+static int64_t
+example1_get_size (void *handle)
+{
+ return (int64_t) sizeof (data);
+}
+
+/* In fact NBDKIT_THREAD_MODEL_PARALLEL would work here. However for
+ * the benefit of people who blindly cut and paste code without
+ * bothering to read any documentation, leave this at a safe default.
+ */
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+
+/* Copy the static data at offset to the buffer. Note that nbdkit
+ * takes care of bounds- and sanity-checking the request.
+ */
+static int
+example1_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ memcpy (buf, data+offset, count);
+ return 0; /* 0 = success, -1 = error */
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "example1",
+ .version = PACKAGE_VERSION,
+ .load = example1_load,
+ .open = example1_open,
+ .get_size = example1_get_size,
+ .pread = example1_pread,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+=head1 NAME
+
+nbdkit-example1-plugin - minimal nbdkit plugin
+
+=head1 SYNOPSIS
+
+ nbdkit example1
+
+=head1 DESCRIPTION
+
+C<nbdkit-example1-plugin> is a minimal L<nbdkit(1)> plugin.
+
+It serves, readonly, from memory, a static blob of data which looks a
+little bit like a 100 MB disk image that contains a single empty
+partition.
+
+Mainly this is useful for testing nbdkit and as an example for writing
+nbdkit plugins (L<nbdkit-plugin(3)>).
+
+=head1 SEE ALSO
+
+L<https://github.com/libguestfs/nbdkit/blob/master/plugins/example1/example1.c>,
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2013 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-example2-plugin.pod
+
+plugin_LTLIBRARIES = nbdkit-example2-plugin.la
+
+nbdkit_example2_plugin_la_SOURCES = \
+ example2.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_example2_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_example2_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_example2_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-example2-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-example2-plugin.1: nbdkit-example2-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
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+# Copyright (C) 2013 Red Hat Inc.
+#
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+# met:
+#
+# * Redistributions of source code must retain the above copyright
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+#
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+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
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+# * Neither the name of Red Hat nor the names of its contributors may be
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+#
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+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
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+# * Redistributions in binary form must reproduce the above copyright
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+# * Neither the name of Red Hat nor the names of its contributors may be
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+ $(top_srcdir)/include/nbdkit-plugin.h
+
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+ -I$(top_srcdir)/include
+
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+ $(WARNINGS_CFLAGS)
+
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+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+@HAVE_POD_TRUE@man_MANS = nbdkit-example2-plugin.1
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+
+@HAVE_POD_TRUE@nbdkit-example2-plugin.1: nbdkit-example2-plugin.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* example2:
+ *
+ * A simple but more realistic read-only file server.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <nbdkit-plugin.h>
+
+#ifndef O_CLOEXEC
+#define O_CLOEXEC 0
+#endif
+
+static char *filename = NULL;
+
+/* A debug flag which can be set on the command line using
+ * '-D example2.extra=1' to enable very verbose debugging to help
+ * developers. Use the debug flags for extra debugging which would
+ * only be useful for the original developers of the plugin. For
+ * ordinary debugging, just use nbdkit_debug and enable messages with
+ * the -v flag on the command line.
+ */
+int example2_debug_extra = 0;
+
+static void
+example2_unload (void)
+{
+ free (filename);
+}
+
+/* If you want to display extra information about the plugin when
+ * the user does ‘nbdkit example2 --dump-plugin’ then you can print
+ * ‘key=value’ lines here.
+ */
+static void
+example2_dump_plugin (void)
+{
+ printf ("example2_extra=hello\n");
+}
+
+/* Called for each key=value passed on the command line. This plugin
+ * only accepts file=<filename>, which is required.
+ */
+static int
+example2_config (const char *key, const char *value)
+{
+ if (strcmp (key, "file") == 0) {
+ /* See FILENAMES AND PATHS in nbdkit-plugin(3). */
+ filename = nbdkit_realpath (value);
+ if (!filename)
+ return -1;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Check the user did pass a file=<FILENAME> parameter. */
+static int
+example2_config_complete (void)
+{
+ if (filename == NULL) {
+ nbdkit_error ("you must supply the file=<FILENAME> parameter "
+ "after the plugin name on the command line");
+ return -1;
+ }
+
+ return 0;
+}
+
+#define example2_config_help \
+ "file=<FILENAME> (required) The filename to serve."
+
+/* The per-connection handle. */
+struct example2_handle {
+ int fd;
+};
+
+/* Create the per-connection handle.
+ *
+ * Because this plugin can only serve readonly, we can ignore the
+ * 'readonly' parameter.
+ */
+static void *
+example2_open (int readonly)
+{
+ struct example2_handle *h;
+
+ h = malloc (sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+
+ h->fd = open (filename, O_RDONLY|O_CLOEXEC);
+ if (h->fd == -1) {
+ nbdkit_error ("open: %s: %m", filename);
+ free (h);
+ return NULL;
+ }
+
+ return h;
+}
+
+/* Free up the per-connection handle. */
+static void
+example2_close (void *handle)
+{
+ struct example2_handle *h = handle;
+
+ close (h->fd);
+ free (h);
+}
+
+/* In fact NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS would work here.
+ * However for the benefit of people who blindly cut and paste code
+ * without bothering to read any documentation, leave this at a safe
+ * default.
+ */
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+
+/* Get the file size. */
+static int64_t
+example2_get_size (void *handle)
+{
+ struct example2_handle *h = handle;
+ struct stat statbuf;
+
+ if (fstat (h->fd, &statbuf) == -1) {
+ nbdkit_error ("stat: %m");
+ return -1;
+ }
+
+ /* Use the debug flags for extra debugging which would only be
+ * useful for the original developers of the plugin. For ordinary
+ * debugging, just use nbdkit_debug and enable messages with the -v
+ * flag on the command line. This is a contrived example of how to
+ * use debug flags.
+ */
+ if (example2_debug_extra)
+ nbdkit_debug ("extra debugging: statbuf.st_size = %jd\n",
+ (intmax_t)statbuf.st_size);
+
+ return statbuf.st_size;
+}
+
+/* Read data from the file. */
+static int
+example2_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ struct example2_handle *h = handle;
+
+ while (count > 0) {
+ ssize_t r = pread (h->fd, buf, count, offset);
+ if (r == -1) {
+ nbdkit_error ("pread: %m");
+ return -1;
+ }
+ if (r == 0) {
+ nbdkit_error ("pread: unexpected end of file");
+ return -1;
+ }
+ buf += r;
+ count -= r;
+ offset += r;
+ }
+
+ return 0;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "example2",
+ .version = PACKAGE_VERSION,
+ .unload = example2_unload,
+ .dump_plugin = example2_dump_plugin,
+ .config = example2_config,
+ .config_complete = example2_config_complete,
+ .config_help = example2_config_help,
+ .open = example2_open,
+ .close = example2_close,
+ .get_size = example2_get_size,
+ .pread = example2_pread,
+ /* In this plugin, errno is preserved properly along error return
+ * paths from failed system calls.
+ */
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+=head1 NAME
+
+nbdkit-example2-plugin - example nbdkit plugin
+
+=head1 SYNOPSIS
+
+ nbdkit example2 file=FILENAME
+
+=head1 DESCRIPTION
+
+C<nbdkit-example2-plugin> is an example L<nbdkit(1)> plugin.
+
+It serves the named C<FILENAME> over NBD, readonly.
+
+Mainly this is useful for testing nbdkit and as an example for writing
+nbdkit plugins (L<nbdkit-plugin(3)>).
+
+=head1 DEBUG FLAGS
+
+For extra debugging (only useful for developers) use
+I<-D example2.extra=1>
+
+=head1 SEE ALSO
+
+L<https://github.com/libguestfs/nbdkit/blob/master/plugins/example2/example2.c>,
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2013 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-example3-plugin.pod
+
+plugin_LTLIBRARIES = nbdkit-example3-plugin.la
+
+nbdkit_example3_plugin_la_SOURCES = \
+ example3.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_example3_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_example3_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_example3_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-example3-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-example3-plugin.1: nbdkit-example3-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
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+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
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+# This Makefile.in is free software; the Free Software Foundation
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+# with or without modifications, as long as this notice is preserved.
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+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
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+@SET_MAKE@
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+# nbdkit
+# Copyright (C) 2013 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
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+# notice, this list of conditions and the following disclaimer in the
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+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
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+# * Redistributions in binary form must reproduce the above copyright
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+# * Neither the name of Red Hat nor the names of its contributors may be
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
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+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+@HAVE_POD_TRUE@nbdkit-example3-plugin.1: nbdkit-example3-plugin.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* example3:
+ *
+ * A simple read-write filesystem which stores all changes in
+ * a temporary file that is thrown away after each connection.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+
+#include <nbdkit-plugin.h>
+
+#ifndef HAVE_FDATASYNC
+#define fdatasync fsync
+#endif
+
+/* The size of disk in bytes (initialized by size=<SIZE> parameter).
+ * If size parameter is not specified, it defaults to 100M.
+ */
+static uint64_t size = 100 * 1024 * 1024;
+
+/* If you want to display extra information about the plugin when
+ * the user does ‘nbdkit example3 --dump-plugin’ then you can print
+ * ‘key=value’ lines here.
+ */
+static void
+example3_dump_plugin (void)
+{
+ printf ("example3_extra=hello\n");
+}
+
+/* Called for each key=value passed on the command line. This plugin
+ * only accepts optional size=<SIZE> parameter.
+ */
+static int
+example3_config (const char *key, const char *value)
+{
+ int64_t r;
+
+ if (strcmp (key, "size") == 0) {
+ r = nbdkit_parse_size (value);
+ if (r == -1)
+ return -1;
+ size = (uint64_t) r;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+#define example3_config_help \
+ "size=<SIZE> (optional) Size of the backing disk (default: 100M)"
+
+/* The per-connection handle. */
+struct example3_handle {
+ int fd;
+};
+
+/* Create the per-connection handle.
+ *
+ * Note we ignore the 'readonly' parameter. In effect this means that
+ * we ignore the -r option on the nbdkit command line, which sort of
+ * makes sense for this particular plugin.
+ */
+static void *
+example3_open (int readonly)
+{
+ struct example3_handle *h;
+ char template[] = LARGE_TMPDIR "/diskXXXXXX";
+
+ h = malloc (sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+
+ h->fd = mkstemp (template);
+ if (h->fd == -1) {
+ nbdkit_error ("mkstemp: %s: %m", template);
+ free (h);
+ return NULL;
+ }
+
+ unlink (template);
+
+ /* This creates a raw-format sparse file of the required size. */
+ if (ftruncate (h->fd, size) == -1) {
+ nbdkit_error ("ftruncate: %m");
+ close (h->fd);
+ free (h);
+ return NULL;
+ }
+
+ return h;
+}
+
+/* Free up the per-connection handle. */
+static void
+example3_close (void *handle)
+{
+ struct example3_handle *h = handle;
+
+ close (h->fd);
+ free (h);
+}
+
+/* In fact NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS would work here.
+ * However for the benefit of people who blindly cut and paste code
+ * without bothering to read any documentation, leave this at a safe
+ * default.
+ */
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+
+/* Get the file size. */
+static int64_t
+example3_get_size (void *handle)
+{
+ return (int64_t) size;
+}
+
+/* Read data from the file. */
+static int
+example3_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ struct example3_handle *h = handle;
+
+ while (count > 0) {
+ ssize_t r = pread (h->fd, buf, count, offset);
+ if (r == -1) {
+ nbdkit_error ("pead: %m");
+ return -1;
+ }
+ if (r == 0) {
+ nbdkit_error ("pread: unexpected end of file");
+ return -1;
+ }
+ buf += r;
+ count -= r;
+ offset += r;
+ }
+
+ return 0;
+}
+
+/* Write data to the file. */
+static int
+example3_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset)
+{
+ struct example3_handle *h = handle;
+
+ while (count > 0) {
+ ssize_t r = pwrite (h->fd, buf, count, offset);
+ if (r == -1) {
+ nbdkit_error ("pwrite: %m");
+ return -1;
+ }
+ buf += r;
+ count -= r;
+ offset += r;
+ }
+
+ return 0;
+}
+
+/* Flush the file to disk. */
+static int
+example3_flush (void *handle)
+{
+ struct example3_handle *h = handle;
+
+ if (fdatasync (h->fd) == -1) {
+ nbdkit_error ("fdatasync: %m");
+ return -1;
+ }
+
+ return 0;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "example3",
+ .version = PACKAGE_VERSION,
+ .dump_plugin = example3_dump_plugin,
+ .config = example3_config,
+ .config_help = example3_config_help,
+ .open = example3_open,
+ .close = example3_close,
+ .get_size = example3_get_size,
+ .pread = example3_pread,
+ .pwrite = example3_pwrite,
+ .flush = example3_flush,
+ /* In this plugin, errno is preserved properly along error return
+ * paths from failed system calls.
+ */
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+=head1 NAME
+
+nbdkit-example3-plugin - example nbdkit plugin
+
+=head1 SYNOPSIS
+
+ nbdkit example3 [size=SIZE]
+
+=head1 EXAMPLE
+
+ nbdkit example3 size=1G
+ guestfish --ro --format=raw -a nbd://localhost
+
+=head1 DESCRIPTION
+
+C<nbdkit-example3-plugin> is an example L<nbdkit(1)> plugin.
+
+On each connection, it generates a temporary writable block device of
+size C<SIZE>. The disk is thrown away when the client disconnects.
+
+The C<size=SIZE> parameter can use a number of common formats to
+specify the size, eg. C<100M>, C<2G>. If the parameter is omitted, it
+defaults to 100M.
+
+Mainly this is useful for testing nbdkit and as an example for writing
+nbdkit plugins (L<nbdkit-plugin(3)>).
+
+=head1 SEE ALSO
+
+L<https://github.com/libguestfs/nbdkit/blob/master/plugins/example3/example3.c>,
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+source = example4.pl
+
+EXTRA_DIST = \
+ $(source)
+
+if HAVE_PERL
+
+plugin_SCRIPTS = nbdkit-example4-plugin
+CLEANFILES += nbdkit-example4-plugin
+
+# We have to do the rewriting here to avoid stupid exec_prefix.
+nbdkit-example4-plugin: $(source)
+ rm -f $@ $@-t
+ sed 's,\@sbindir\@,${sbindir},g' < $< > $@-t
+ mv $@-t $@
+ chmod 0555 $@
+
+if HAVE_POD
+
+man_MANS = nbdkit-example4-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-example4-plugin.1: $(source)
+ $(PODWRAPPER) --section=1 --name nbdkit-example4-plugin --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+
+endif
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
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+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
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+# * Neither the name of Red Hat nor the names of its contributors may be
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+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
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+#
+# * Redistributions in binary form must reproduce the above copyright
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+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+filterdir = $(libdir)/nbdkit/filters
+CLEANFILES = *~ *.cmi *.cmx *.cmxa *.so $(am__append_1) \
+ $(am__append_2)
+source = example4.pl
+EXTRA_DIST = \
+ $(source)
+
+@HAVE_PERL_TRUE@plugin_SCRIPTS = nbdkit-example4-plugin
+@HAVE_PERL_TRUE@@HAVE_POD_TRUE@man_MANS = nbdkit-example4-plugin.1
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+
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+ exit 1;; \
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+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
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+ fi
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+ uninstall-pluginSCRIPTS
+
+.PRECIOUS: Makefile
+
+
+# We have to do the rewriting here to avoid stupid exec_prefix.
+@HAVE_PERL_TRUE@nbdkit-example4-plugin: $(source)
+@HAVE_PERL_TRUE@ rm -f $@ $@-t
+@HAVE_PERL_TRUE@ sed 's,\@sbindir\@,${sbindir},g' < $< > $@-t
+@HAVE_PERL_TRUE@ mv $@-t $@
+@HAVE_PERL_TRUE@ chmod 0555 $@
+
+@HAVE_PERL_TRUE@@HAVE_POD_TRUE@nbdkit-example4-plugin.1: $(source)
+@HAVE_PERL_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --name nbdkit-example4-plugin --man $@ \
+@HAVE_PERL_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_PERL_TRUE@@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+#!@sbindir@/nbdkit perl
+# -*- perl -*-
+
+=pod
+
+=head1 NAME
+
+nbdkit-example4-plugin - example nbdkit plugin written in Perl
+
+=head1 SYNOPSIS
+
+ nbdkit example4 size=<N>
+
+=head1 EXAMPLE
+
+ nbdkit example4 size=1048576
+ guestfish -a nbd://localhost
+
+=head1 DESCRIPTION
+
+C<nbdkit-example4-plugin> is an example L<nbdkit(1)> plugin
+written in Perl.
+
+The C<size=N> parameter is required. It specifies the disk size in
+bytes. A single disk image, initially all zeroes, is created and can
+be read and written by all clients. When nbdkit shuts down the disk
+image is thrown away.
+
+Mainly this is useful for testing and as an example of nbdkit plugins
+written in Perl. You should also read L<nbdkit-plugin(3)> and
+L<nbdkit-perl-plugin(3)>. Note that nbdkit plugins may be written in
+C or other scripting languages.
+
+=head1 SEE ALSO
+
+L<https://github.com/libguestfs/nbdkit/blob/master/plugins/example4/example4.pl>,
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<nbdkit-perl-plugin(3)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2017 Red Hat Inc.
+
+=cut
+
+use strict;
+
+my $disk;
+my $size;
+
+# size=<N> (in bytes) is required on the command line.
+# This example could be improved by parsing strings such as "1M".
+sub config
+{
+ my $k = shift;
+ my $v = shift;
+
+ if ($k eq "size") {
+ $size = int ($v);
+ }
+ else {
+ die "unknown parameter $k";
+ }
+}
+
+# When all config parameters have been seen, allocate the disk.
+sub config_complete
+{
+ die "size was not set" unless defined $size;
+ $disk = "\0" x $size;
+}
+
+# Accept a connection from a client, create and return the handle
+# which is passed back to other calls.
+sub open
+{
+ my $readonly = shift;
+ my $h = { readonly => $readonly };
+ return $h;
+}
+
+# Close the connection.
+sub close
+{
+ my $h = shift;
+}
+
+# Return the size.
+sub get_size
+{
+ my $h = shift;
+ return length ($disk);
+}
+
+# Read.
+sub pread
+{
+ my $h = shift;
+ my $count = shift;
+ my $offset = shift;
+ return substr ($disk, $offset, $count);
+}
+
+# Write.
+sub pwrite
+{
+ my $h = shift;
+ my $buf = shift;
+ my $count = length ($buf);
+ my $offset = shift;
+ substr ($disk, $offset, $count) = $buf;
+}
+
+# If you want to display extra information about the plugin when
+# the user does ‘nbdkit example4 --dump-plugin’ then you can print
+# ‘key=value’ lines here.
+sub dump_plugin
+{
+ print "example4_extra=hello\n";
+ flush STDOUT;
+}
--- /dev/null
+# nbdkit
+# Copyright (C) 2017-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-ext2-plugin.pod
+
+if HAVE_EXT2
+
+plugin_LTLIBRARIES = nbdkit-ext2-plugin.la
+
+nbdkit_ext2_plugin_la_SOURCES = \
+ ext2.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_ext2_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_ext2_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS) \
+ $(EXT2FS_CFLAGS) $(COM_ERR_CFLAGS)
+nbdkit_ext2_plugin_la_LIBADD = \
+ $(EXT2FS_LIBS) $(COM_ERR_LIBS)
+nbdkit_ext2_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-ext2-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-ext2-plugin.1: nbdkit-ext2-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+endif
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2017-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+ true; \
+ else \
+ false; \
+ fi; \
+}
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+
+
+@HAVE_EXT2_TRUE@@HAVE_POD_TRUE@nbdkit-ext2-plugin.1: nbdkit-ext2-plugin.pod
+@HAVE_EXT2_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_EXT2_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_EXT2_TRUE@@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+
+/* Inlining is broken in the ext2fs header file. Disable it by
+ * defining the following:
+ */
+#define NO_INLINE_FUNCS
+#include <ext2fs.h>
+
+#define NBDKIT_API_VERSION 2
+
+#include <nbdkit-plugin.h>
+
+/* Disk image and filename parameters. */
+static char *disk;
+static char *file;
+
+static void
+ext2_load (void)
+{
+ initialize_ext2_error_table ();
+}
+
+static void
+ext2_unload (void)
+{
+ free (disk);
+ free (file);
+}
+
+static int
+ext2_config (const char *key, const char *value)
+{
+ if (strcmp (key, "disk") == 0) {
+ if (disk != NULL) {
+ nbdkit_error ("disk parameter specified more than once");
+ return -1;
+ }
+ disk = nbdkit_absolute_path (value);
+ if (disk == NULL)
+ return -1;
+ }
+ else if (strcmp (key, "file") == 0) {
+ if (file != NULL) {
+ nbdkit_error ("file parameter specified more than once");
+ return -1;
+ }
+ file = strdup (value);
+ if (file == NULL) {
+ nbdkit_error ("strdup: %m");
+ return -1;
+ }
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+ext2_config_complete (void)
+{
+ if (disk == NULL || file == NULL) {
+ nbdkit_error ("you must supply disk=<DISK> and file=<FILE> parameters "
+ "after the plugin name on the command line");
+ return -1;
+ }
+
+ if (file[0] != '/') {
+ nbdkit_error ("the file parameter must refer to an absolute path");
+ return -1;
+ }
+
+ return 0;
+}
+
+#define ext2_config_help \
+ "disk=<FILENAME> (required) Raw ext2, ext3 or ext4 filesystem.\n" \
+ "file=<FILENAME> (required) File to serve inside the disk image."
+
+/* The per-connection handle. */
+struct handle {
+ ext2_filsys fs; /* Filesystem handle. */
+ ext2_ino_t ino; /* Inode of open file. */
+ ext2_file_t file; /* File handle. */
+};
+
+/* Create the per-connection handle. */
+static void *
+ext2_open (int readonly)
+{
+ struct handle *h;
+ errcode_t err;
+ int fs_flags;
+ int file_flags;
+ struct ext2_inode inode;
+
+ h = malloc (sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+
+ fs_flags = 0;
+#ifdef EXT2_FLAG_64BITS
+ fs_flags |= EXT2_FLAG_64BITS;
+#endif
+ if (!readonly)
+ fs_flags |= EXT2_FLAG_RW;
+
+ err = ext2fs_open (disk, fs_flags, 0, 0, unix_io_manager, &h->fs);
+ if (err != 0) {
+ nbdkit_error ("%s: open: %s", disk, error_message (err));
+ goto err0;
+ }
+
+ if (strcmp (file, "/") == 0)
+ /* probably gonna fail, but we'll catch it later */
+ h->ino = EXT2_ROOT_INO;
+ else {
+ err = ext2fs_namei (h->fs, EXT2_ROOT_INO, EXT2_ROOT_INO,
+ &file[1], &h->ino);
+ if (err != 0) {
+ nbdkit_error ("%s: %s: namei: %s", disk, file, error_message (err));
+ goto err1;
+ }
+ }
+
+ /* Check the file is a regular file.
+ * XXX This won't follow symlinks, we'd have to do that manually.
+ */
+ err = ext2fs_read_inode (h->fs, h->ino, &inode);
+ if (err != 0) {
+ nbdkit_error ("%s: %s: inode: %s", disk, file, error_message (err));
+ goto err1;
+ }
+ if (!LINUX_S_ISREG (inode.i_mode)) {
+ nbdkit_error ("%s: %s: must be a regular file in the disk image",
+ disk, file);
+ goto err1;
+ }
+
+ file_flags = 0;
+ if (!readonly)
+ file_flags |= EXT2_FILE_WRITE;
+ err = ext2fs_file_open2 (h->fs, h->ino, NULL, file_flags, &h->file);
+ if (err != 0) {
+ nbdkit_error ("%s: %s: open: %s", disk, file, error_message (err));
+ goto err1;
+ }
+
+ return h;
+
+ err1:
+ ext2fs_close (h->fs);
+ err0:
+ free (h);
+ return NULL;
+}
+
+/* Free up the per-connection handle. */
+static void
+ext2_close (void *handle)
+{
+ struct handle *h = handle;
+
+ ext2fs_file_close (h->file);
+ ext2fs_close (h->fs);
+ free (h);
+}
+
+static int
+ext2_can_fua (void *handle)
+{
+ return NBDKIT_FUA_NATIVE;
+}
+
+/* It might be possible to relax this, but it's complicated.
+ *
+ * It's desirable for ‘nbdkit -r’ to behave the same way as
+ * ‘mount -o ro’. But we don't know the state of the readonly flag
+ * until ext2_open is called (because the NBD client can also request
+ * a readonly connection). So we could not set the "ro" flag if we
+ * opened the filesystem any earlier (eg in ext2_config).
+ *
+ * So out of necessity we have one ext2_filsys handle per connection,
+ * but if we allowed parallel work on those handles then we would get
+ * data corruption, so we need to serialize connections.
+ */
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS
+
+/* Get the disk size. */
+static int64_t
+ext2_get_size (void *handle)
+{
+ struct handle *h = handle;
+ errcode_t err;
+ uint64_t size;
+
+ err = ext2fs_file_get_lsize (h->file, (__u64 *) &size);
+ if (err != 0) {
+ nbdkit_error ("%s: %s: lsize: %s", disk, file, error_message (err));
+ return -1;
+ }
+ return (int64_t) size;
+}
+
+/* Read data. */
+static int
+ext2_pread (void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ struct handle *h = handle;
+ errcode_t err;
+ unsigned int got;
+
+ while (count > 0) {
+ /* Although this function weirdly can return the new offset,
+ * examination of the code shows that it never returns anything
+ * different from what we set, so NULL out that parameter.
+ */
+ err = ext2fs_file_llseek (h->file, offset, EXT2_SEEK_SET, NULL);
+ if (err != 0) {
+ nbdkit_error ("%s: %s: llseek: %s", disk, file, error_message (err));
+ return -1;
+ }
+
+ err = ext2fs_file_read (h->file, buf, (unsigned int) count, &got);
+ if (err != 0) {
+ nbdkit_error ("%s: %s: read: %s", disk, file, error_message (err));
+ return -1;
+ }
+
+ buf += got;
+ count -= got;
+ offset += got;
+ }
+
+ return 0;
+}
+
+/* Write data to the file. */
+static int
+ext2_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ struct handle *h = handle;
+ errcode_t err;
+ unsigned int written;
+
+ while (count > 0) {
+ err = ext2fs_file_llseek (h->file, offset, EXT2_SEEK_SET, NULL);
+ if (err != 0) {
+ nbdkit_error ("%s: %s: llseek: %s", disk, file, error_message (err));
+ return -1;
+ }
+
+ err = ext2fs_file_write (h->file, buf, (unsigned int) count, &written);
+ if (err != 0) {
+ nbdkit_error ("%s: %s: write: %s", disk, file, error_message (err));
+ return -1;
+ }
+
+ buf += written;
+ count -= written;
+ offset += written;
+ }
+
+ if ((flags & NBDKIT_FLAG_FUA) != 0) {
+ err = ext2fs_file_flush (h->file);
+ if (err != 0) {
+ nbdkit_error ("%s: %s: flush: %s", disk, file, error_message (err));
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static int
+ext2_flush (void *handle, uint32_t flags)
+{
+ struct handle *h = handle;
+ errcode_t err;
+
+ err = ext2fs_file_flush (h->file);
+ if (err != 0) {
+ nbdkit_error ("%s: %s: flush: %s", disk, file, error_message (err));
+ return -1;
+ }
+
+ return 0;
+}
+
+/* XXX It seems as if we should be able to support trim and zero, if
+ * we could work out how those are implemented in the ext2fs API which
+ * is very obscure.
+ */
+
+static struct nbdkit_plugin plugin = {
+ .name = "ext2",
+ .version = PACKAGE_VERSION,
+ .load = ext2_load,
+ .unload = ext2_unload,
+ .config = ext2_config,
+ .config_complete = ext2_config_complete,
+ .config_help = ext2_config_help,
+ .open = ext2_open,
+ .close = ext2_close,
+ .can_fua = ext2_can_fua,
+ .get_size = ext2_get_size,
+ .pread = ext2_pread,
+ .pwrite = ext2_pwrite,
+ .flush = ext2_flush,
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+=head1 NAME
+
+nbdkit-ext2-plugin - read and write files inside ext2, ext3 or
+ext4 filesystems
+
+=head1 SYNOPSIS
+
+ nbdkit ext2 disk=fs.img file=/disks/disk.raw
+
+ nbdkit --filter=partition ext2 \
+ disk=disk.img file=/disks/disk.raw \
+ partition=1
+
+=head1 DESCRIPTION
+
+C<nbdkit-ext2-plugin> is an nbdkit plugin which can read and
+write files inside ext2, ext3 or ext4 filesystem images.
+
+Suppose you have an ext2/3/4 filesystem image called F<fs.img>
+which contains inside itself a file called F<disk.raw>
+inside a directory on the filesystem called F</disks>, then
+you could serve that file over NBD using:
+
+ nbdkit ext2 disk=fs.img file=/disks/disk.raw
+
+Commonly disk images are partitioned. In that case you must
+use L<nbdkit-partition-filter(1)> to select the partition:
+
+ nbdkit --filter=partition ext2 disk=.. file=.. partition=1
+
+This plugin can both read and write to the file inside the filesystem.
+Use the I<-r> flag to force a readonly connection, but note this does
+I<not> guarantee that no writes are made to the filesystem. In
+particular we may have to replay the ext3 journal in order to open a
+filesystem even read-only.
+
+The plugin does I<not> support multiple parallel connections, because
+there is a risk of corrupting the filesystem (as if the filesystem was
+mounted by multiple machines). If a second connection is made to
+nbdkit, it will block until the first connection closes.
+
+The plugin is implemented using the ext2fs library which is provided
+in most Linux distros, and also available as part of the e2fsprogs
+project.
+
+L<nbdkit-guestfs-plugin(1)> is a more generic plugin which can read
+files from all kinds of different filesystem types, even if they are
+partitioned or use logical volumes. It uses libguestfs instead of
+e2fsprogs.
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<disk=>FILENAME
+
+The ext2, ext3 or ext4 filesystem, a file on the host.
+
+You could also use a device name here if the filesystem is located on
+a device. Be careful that the filesystem is not being accessed in
+parallel by another program and is not mounted, as that will almost
+certainly result in disk corruption in the filesystem.
+
+The plugin expects a raw filesystem. If the file/device is
+partitioned, use L<nbdkit-partition-filter(1)>.
+
+=item B<file=>PATH
+
+The full path of the file within the filesystem that will be exposed
+over NBD. The path must be absolute (starts with C</>).
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<nbdkit-partition-filter(1)>,
+L<nbdkit-guestfs-plugin(1)>,
+L<http://e2fsprogs.sourceforge.net/>,
+L<fuse2fs(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2013 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-file-plugin.pod
+
+plugin_LTLIBRARIES = nbdkit-file-plugin.la
+
+nbdkit_file_plugin_la_SOURCES = \
+ file.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_file_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include
+nbdkit_file_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_file_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-file-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-file-plugin.1: nbdkit-file-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
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+# Copyright (C) 2013 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
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+#
+# * Redistributions of source code must retain the above copyright
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+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
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+#
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
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+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
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+
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+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-file-plugin.1: nbdkit-file-plugin.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include <inttypes.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/ioctl.h>
+#include <errno.h>
+
+#include <pthread.h>
+
+#if defined (__linux__) && !defined (FALLOC_FL_PUNCH_HOLE)
+#include <linux/falloc.h> /* For FALLOC_FL_*, glibc < 2.18 */
+#endif
+
+#if defined (__linux__)
+#include <linux/fs.h> /* For BLKZEROOUT */
+#endif
+
+#define NBDKIT_API_VERSION 2
+
+#include <nbdkit-plugin.h>
+
+#include "isaligned.h"
+
+#ifndef O_CLOEXEC
+#define O_CLOEXEC 0
+#endif
+
+#ifndef HAVE_FDATASYNC
+#define fdatasync fsync
+#endif
+
+static char *filename = NULL;
+
+/* Any callbacks using lseek must be protected by this lock. */
+static pthread_mutex_t lseek_lock = PTHREAD_MUTEX_INITIALIZER;
+
+/* to enable: -D file.zero=1 */
+int file_debug_zero;
+
+static void
+file_unload (void)
+{
+ free (filename);
+}
+
+/* Called for each key=value passed on the command line. This plugin
+ * only accepts file=<filename>, which is required.
+ */
+static int
+file_config (const char *key, const char *value)
+{
+ if (strcmp (key, "file") == 0) {
+ /* See FILENAMES AND PATHS in nbdkit-plugin(3). */
+ free (filename);
+ filename = nbdkit_realpath (value);
+ if (!filename)
+ return -1;
+ }
+ else if (strcmp (key, "rdelay") == 0 ||
+ strcmp (key, "wdelay") == 0) {
+ nbdkit_error ("add --filter=delay on the command line");
+ return -1;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Check the user did pass a file=<FILENAME> parameter. */
+static int
+file_config_complete (void)
+{
+ if (filename == NULL) {
+ nbdkit_error ("you must supply the file=<FILENAME> parameter "
+ "after the plugin name on the command line");
+ return -1;
+ }
+
+ return 0;
+}
+
+#define file_config_help \
+ "file=<FILENAME> (required) The filename to serve." \
+
+/* Print some extra information about how the plugin was compiled. */
+static void
+file_dump_plugin (void)
+{
+#ifdef BLKSSZGET
+ printf ("file_blksszget=yes\n");
+#endif
+#ifdef BLKZEROOUT
+ printf ("file_blkzeroout=yes\n");
+#endif
+#ifdef FALLOC_FL_PUNCH_HOLE
+ printf ("file_falloc_fl_punch_hole=yes\n");
+#endif
+#ifdef FALLOC_FL_ZERO_RANGE
+ printf ("file_falloc_fl_zero_range=yes\n");
+#endif
+}
+
+/* The per-connection handle. */
+struct handle {
+ int fd;
+ bool is_block_device;
+ int sector_size;
+ bool can_punch_hole;
+ bool can_zero_range;
+ bool can_fallocate;
+ bool can_zeroout;
+};
+
+/* Create the per-connection handle. */
+static void *
+file_open (int readonly)
+{
+ struct handle *h;
+ struct stat statbuf;
+ int flags;
+
+ h = malloc (sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+
+ flags = O_CLOEXEC|O_NOCTTY;
+ if (readonly)
+ flags |= O_RDONLY;
+ else
+ flags |= O_RDWR;
+
+ h->fd = open (filename, flags);
+ if (h->fd == -1) {
+ nbdkit_error ("open: %s: %m", filename);
+ free (h);
+ return NULL;
+ }
+
+ if (fstat (h->fd, &statbuf) == -1) {
+ nbdkit_error ("fstat: %s: %m", filename);
+ free (h);
+ return NULL;
+ }
+
+ h->is_block_device = S_ISBLK (statbuf.st_mode);
+ h->sector_size = 4096; /* Start with safe guess */
+
+#ifdef BLKSSZGET
+ if (h->is_block_device) {
+ if (ioctl (h->fd, BLKSSZGET, &h->sector_size))
+ nbdkit_debug ("cannot get sector size: %s: %m", filename);
+ }
+#endif
+
+#ifdef FALLOC_FL_PUNCH_HOLE
+ h->can_punch_hole = true;
+#else
+ h->can_punch_hole = false;
+#endif
+
+#ifdef FALLOC_FL_ZERO_RANGE
+ h->can_zero_range = true;
+#else
+ h->can_zero_range = false;
+#endif
+
+ h->can_fallocate = true;
+ h->can_zeroout = h->is_block_device;
+
+ return h;
+}
+
+/* Free up the per-connection handle. */
+static void
+file_close (void *handle)
+{
+ struct handle *h = handle;
+
+ close (h->fd);
+ free (h);
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* For block devices, stat->st_size is not the true size. The caller
+ * grabs the lseek_lock.
+ */
+static int64_t
+block_device_size (int fd)
+{
+ off_t size;
+
+ size = lseek (fd, 0, SEEK_END);
+ if (size == -1) {
+ nbdkit_error ("lseek (to find device size): %m");
+ return -1;
+ }
+
+ return size;
+}
+
+/* Get the file size. */
+static int64_t
+file_get_size (void *handle)
+{
+ struct handle *h = handle;
+
+ if (h->is_block_device) {
+ int64_t size;
+
+ pthread_mutex_lock (&lseek_lock);
+ size = block_device_size (h->fd);
+ pthread_mutex_unlock (&lseek_lock);
+ return size;
+ } else {
+ /* Regular file. */
+ struct stat statbuf;
+
+ if (fstat (h->fd, &statbuf) == -1) {
+ nbdkit_error ("fstat: %m");
+ return -1;
+ }
+
+ return statbuf.st_size;
+ }
+}
+
+/* Allow multiple parallel connections from a single client. */
+static int
+file_can_multi_conn (void *handle)
+{
+ return 1;
+}
+
+static int
+file_can_trim (void *handle)
+{
+ /* Trim is advisory, but we prefer to advertise it only when we can
+ * actually (attempt to) punch holes. Since not all filesystems
+ * support all fallocate modes, it would be nice if we had a way
+ * from fpathconf() to definitively learn what will work on a given
+ * fd for a more precise answer; oh well. */
+#ifdef FALLOC_FL_PUNCH_HOLE
+ return 1;
+#else
+ return 0;
+#endif
+}
+
+static int
+file_can_fua (void *handle)
+{
+ return NBDKIT_FUA_NATIVE;
+}
+
+/* Flush the file to disk. */
+static int
+file_flush (void *handle, uint32_t flags)
+{
+ struct handle *h = handle;
+
+ if (fdatasync (h->fd) == -1) {
+ nbdkit_error ("fdatasync: %m");
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Read data from the file. */
+static int
+file_pread (void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ struct handle *h = handle;
+
+ while (count > 0) {
+ ssize_t r = pread (h->fd, buf, count, offset);
+ if (r == -1) {
+ nbdkit_error ("pread: %m");
+ return -1;
+ }
+ if (r == 0) {
+ nbdkit_error ("pread: unexpected end of file");
+ return -1;
+ }
+ buf += r;
+ count -= r;
+ offset += r;
+ }
+
+ return 0;
+}
+
+/* Write data to the file. */
+static int
+file_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ struct handle *h = handle;
+
+ while (count > 0) {
+ ssize_t r = pwrite (h->fd, buf, count, offset);
+ if (r == -1) {
+ nbdkit_error ("pwrite: %m");
+ return -1;
+ }
+ buf += r;
+ count -= r;
+ offset += r;
+ }
+
+ if ((flags & NBDKIT_FLAG_FUA) && file_flush (handle, 0) == -1)
+ return -1;
+
+ return 0;
+}
+
+#if defined (FALLOC_FL_PUNCH_HOLE) || defined (FALLOC_FL_ZERO_RANGE)
+static int
+do_fallocate (int fd, int mode, off_t offset, off_t len)
+{
+ int r = fallocate (fd, mode, offset, len);
+ if (r == -1 && errno == ENODEV) {
+ /* kernel 3.10 fails with ENODEV for block device. Kernel >= 4.9 fails
+ with EOPNOTSUPP in this case. Normalize errno to simplify callers. */
+ errno = EOPNOTSUPP;
+ }
+ return r;
+}
+#endif
+
+/* Write zeroes to the file. */
+static int
+file_zero (void *handle, uint32_t count, uint64_t offset, uint32_t flags)
+{
+ struct handle *h = handle;
+ int r;
+
+#ifdef FALLOC_FL_PUNCH_HOLE
+ if (h->can_punch_hole && (flags & NBDKIT_FLAG_MAY_TRIM)) {
+ r = do_fallocate (h->fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
+ offset, count);
+ if (r == 0) {
+ if (file_debug_zero)
+ nbdkit_debug ("h->can_punch_hole && may_trim: "
+ "zero succeeded using fallocate");
+ goto out;
+ }
+
+ if (errno != EOPNOTSUPP) {
+ nbdkit_error ("zero: %m");
+ return -1;
+ }
+
+ h->can_punch_hole = false;
+ }
+#endif
+
+#ifdef FALLOC_FL_ZERO_RANGE
+ if (h->can_zero_range) {
+ r = do_fallocate (h->fd, FALLOC_FL_ZERO_RANGE, offset, count);
+ if (r == 0) {
+ if (file_debug_zero)
+ nbdkit_debug ("h->can_zero-range: "
+ "zero succeeded using fallocate");
+ goto out;
+ }
+
+ if (errno != EOPNOTSUPP) {
+ nbdkit_error ("zero: %m");
+ return -1;
+ }
+
+ h->can_zero_range = false;
+ }
+#endif
+
+#ifdef FALLOC_FL_PUNCH_HOLE
+ /* If we can punch hole but may not trim, we can combine punching hole and
+ * fallocate to zero a range. This is expected to be more efficient than
+ * writing zeroes manually. */
+ if (h->can_punch_hole && h->can_fallocate) {
+ r = do_fallocate (h->fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
+ offset, count);
+ if (r == 0) {
+ r = do_fallocate (h->fd, 0, offset, count);
+ if (r == 0) {
+ if (file_debug_zero)
+ nbdkit_debug ("h->can_punch_hole && h->can_fallocate: "
+ "zero succeeded using fallocate");
+ goto out;
+ }
+
+ if (errno != EOPNOTSUPP) {
+ nbdkit_error ("zero: %m");
+ return -1;
+ }
+
+ h->can_fallocate = false;
+ } else {
+ if (errno != EOPNOTSUPP) {
+ nbdkit_error ("zero: %m");
+ return -1;
+ }
+
+ h->can_punch_hole = false;
+ }
+ }
+#endif
+
+#ifdef BLKZEROOUT
+ /* For aligned range and block device, we can use BLKZEROOUT. */
+ if (h->can_zeroout && IS_ALIGNED (offset | count, h->sector_size)) {
+ uint64_t range[2] = {offset, count};
+
+ r = ioctl (h->fd, BLKZEROOUT, &range);
+ if (r == 0) {
+ if (file_debug_zero)
+ nbdkit_debug ("h->can_zeroout && IS_ALIGNED: "
+ "zero succeeded using BLKZEROOUT");
+ goto out;
+ }
+
+ if (errno != ENOTTY) {
+ nbdkit_error ("zero: %m");
+ return -1;
+ }
+
+ h->can_zeroout = false;
+ }
+#endif
+
+ /* Trigger a fall back to writing */
+ if (file_debug_zero)
+ nbdkit_debug ("zero falling back to writing");
+ errno = EOPNOTSUPP;
+ return -1;
+
+ out:
+ if ((flags & NBDKIT_FLAG_FUA) && file_flush (handle, 0) == -1)
+ return -1;
+ return 0;
+}
+
+/* Punch a hole in the file. */
+static int
+file_trim (void *handle, uint32_t count, uint64_t offset, uint32_t flags)
+{
+#ifdef FALLOC_FL_PUNCH_HOLE
+ struct handle *h = handle;
+ int r;
+
+ if (h->can_punch_hole) {
+ r = do_fallocate (h->fd, FALLOC_FL_PUNCH_HOLE | FALLOC_FL_KEEP_SIZE,
+ offset, count);
+ if (r == -1) {
+ /* Trim is advisory; we don't care if it fails for anything other
+ * than EIO or EPERM. */
+ if (errno == EPERM || errno == EIO) {
+ nbdkit_error ("fallocate: %m");
+ return -1;
+ }
+
+ if (errno == EOPNOTSUPP)
+ h->can_punch_hole = false;
+
+ nbdkit_debug ("ignoring failed fallocate during trim: %m");
+ }
+ }
+#endif
+
+ if ((flags & NBDKIT_FLAG_FUA) && file_flush (handle, 0) == -1)
+ return -1;
+
+ return 0;
+}
+
+#ifdef SEEK_HOLE
+/* Extents. */
+
+static int
+file_can_extents (void *handle)
+{
+ struct handle *h = handle;
+ off_t r;
+
+ /* A simple test to see whether SEEK_HOLE etc is likely to work on
+ * the current filesystem.
+ */
+ pthread_mutex_lock (&lseek_lock);
+ r = lseek (h->fd, 0, SEEK_HOLE);
+ pthread_mutex_unlock (&lseek_lock);
+ if (r == -1) {
+ nbdkit_debug ("extents disabled: lseek: SEEK_HOLE: %m");
+ return 0;
+ }
+ return 1;
+}
+
+static int
+do_extents (void *handle, uint32_t count, uint64_t offset,
+ uint32_t flags, struct nbdkit_extents *extents)
+{
+ struct handle *h = handle;
+ const bool req_one = flags & NBDKIT_FLAG_REQ_ONE;
+ uint64_t end = offset + count;
+
+ do {
+ off_t pos;
+
+ pos = lseek (h->fd, offset, SEEK_DATA);
+ if (pos == -1) {
+ if (errno == ENXIO) {
+ /* The current man page does not describe this situation well,
+ * but a proposed change to POSIX adds these words for ENXIO:
+ * "or the whence argument is SEEK_DATA and the offset falls
+ * within the final hole of the file."
+ */
+ pos = end;
+ }
+ else {
+ nbdkit_error ("lseek: SEEK_DATA: %" PRIu64 ": %m", offset);
+ return -1;
+ }
+ }
+
+ /* We know there is a hole from offset to pos-1. */
+ if (pos > offset) {
+ if (nbdkit_add_extent (extents, offset, pos - offset,
+ NBDKIT_EXTENT_HOLE | NBDKIT_EXTENT_ZERO) == -1)
+ return -1;
+ if (req_one)
+ break;
+ }
+
+ offset = pos;
+ if (offset >= end)
+ break;
+
+ pos = lseek (h->fd, offset, SEEK_HOLE);
+ if (pos == -1) {
+ nbdkit_error ("lseek: SEEK_HOLE: %" PRIu64 ": %m", offset);
+ return -1;
+ }
+
+ /* We know there is data from offset to pos-1. */
+ if (pos > offset) {
+ if (nbdkit_add_extent (extents, offset, pos - offset,
+ 0 /* allocated data */) == -1)
+ return -1;
+ if (req_one)
+ break;
+ }
+
+ offset = pos;
+ } while (offset < end);
+
+ return 0;
+}
+
+static int
+file_extents (void *handle, uint32_t count, uint64_t offset,
+ uint32_t flags, struct nbdkit_extents *extents)
+{
+ int r;
+
+ pthread_mutex_lock (&lseek_lock);
+ r = do_extents (handle, count, offset, flags, extents);
+ pthread_mutex_unlock (&lseek_lock);
+
+ return r;
+}
+#endif /* SEEK_HOLE */
+
+static struct nbdkit_plugin plugin = {
+ .name = "file",
+ .longname = "nbdkit file plugin",
+ .version = PACKAGE_VERSION,
+ .unload = file_unload,
+ .config = file_config,
+ .config_complete = file_config_complete,
+ .config_help = file_config_help,
+ .magic_config_key = "file",
+ .dump_plugin = file_dump_plugin,
+ .open = file_open,
+ .close = file_close,
+ .get_size = file_get_size,
+ .can_multi_conn = file_can_multi_conn,
+ .can_trim = file_can_trim,
+ .can_fua = file_can_fua,
+ .pread = file_pread,
+ .pwrite = file_pwrite,
+ .flush = file_flush,
+ .trim = file_trim,
+ .zero = file_zero,
+#ifdef SEEK_HOLE
+ .can_extents = file_can_extents,
+ .extents = file_extents,
+#endif
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+=head1 NAME
+
+nbdkit-file-plugin - nbdkit file plugin
+
+=head1 SYNOPSIS
+
+ nbdkit file [file=]FILENAME
+
+=head1 DESCRIPTION
+
+C<nbdkit-file-plugin> is a file serving plugin for L<nbdkit(1)>.
+
+It serves the named C<FILENAME> over NBD. Local block devices
+(eg. F</dev/sda>) may also be served.
+
+To concatenate multiple files, use L<nbdkit-split-plugin(1)>.
+
+If you want to expose a file that resides on a file system known to
+have poor C<lseek(2)> performance when searching for holes (C<tmpfs>
+is known to be one such file system), you can use
+L<nbdkit-noextents-filter(1)> to avoid the penalty of probing for
+holes.
+
+=head1 PARAMETERS
+
+=over 4
+
+=item [B<file=>]FILENAME
+
+Serve the file named C<FILENAME>. A local block device name can also
+be used here.
+
+This parameter is required.
+
+C<file=> is a magic config key and may be omitted in most cases.
+See L<nbdkit(1)/Magic parameters>.
+
+=item B<rdelay>
+
+=item B<wdelay>
+
+These plugin parameters have been moved to the
+L<nbdkit-delay-filter(1)> filter. Modify the command line to add
+I<--filter=delay> in order to use these parameters.
+
+=back
+
+=head1 DUMP-PLUGIN OUTPUT
+
+You can obtain extra information about how the file plugin was
+compiled by doing:
+
+ nbdkit file --dump-plugin
+
+Some of the fields which may appear are listed below. Note these are
+for information only and may be changed or removed at any time in the
+future.
+
+=over 4
+
+=item C<file_blksszget=yes>
+
+=item C<file_blkzeroout=yes>
+
+If both set, the plugin may be able to efficiently zero ranges of
+block devices, where the driver and block device itself supports this.
+
+=item C<file_falloc_fl_punch_hole=yes>
+
+If set, the plugin may be able to punch holes (make sparse) files and
+block devices.
+
+=item C<file_falloc_fl_zero_range=yes>
+
+If set, the plugin may be able to efficiently zero ranges of files and
+block devices.
+
+=back
+
+=head1 DEBUG FLAG
+
+=over 4
+
+=item B<-D file.zero=1>
+
+This enables very verbose debugging of the NBD zero request. This can
+be used to tell if the file plugin is able to zero ranges in the file
+or block device efficiently or not.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<nbdkit-split-plugin(1)>,
+L<nbdkit-partitioning-plugin(1)>,
+L<nbdkit-noextents-filter(1)>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+Nir Soffer
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013-2018 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-floppy-plugin.pod
+
+if HAVE_ICONV
+
+plugin_LTLIBRARIES = nbdkit-floppy-plugin.la
+
+nbdkit_floppy_plugin_la_SOURCES = \
+ directory-lfn.c \
+ floppy.c \
+ virtual-floppy.c \
+ virtual-floppy.h \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_floppy_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include \
+ -I$(top_srcdir)/common/regions \
+ -I.
+nbdkit_floppy_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_floppy_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+nbdkit_floppy_plugin_la_LIBADD = \
+ $(top_builddir)/common/regions/libregions.la
+
+if HAVE_POD
+
+man_MANS = nbdkit-floppy-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-floppy-plugin.1: nbdkit-floppy-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+
+endif
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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+
+
+@HAVE_ICONV_TRUE@@HAVE_POD_TRUE@nbdkit-floppy-plugin.1: nbdkit-floppy-plugin.pod
+@HAVE_ICONV_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_ICONV_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_ICONV_TRUE@@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* This file deals only with directories and long file names (LFNs).
+ * Turns out to be the most complicated part of the FAT format.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <errno.h>
+#include <assert.h>
+#include <iconv.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <nbdkit-plugin.h>
+
+#include "byte-swapping.h"
+
+#include "virtual-floppy.h"
+
+/* Used for dealing with VFAT LFNs when creating a directory. */
+struct lfn {
+ const char *name; /* Original Unix filename. */
+ char short_base[8]; /* Short basename. */
+ char short_ext[3]; /* Short file extension. */
+ char *lfn; /* Long filename for MS-DOS as UTF16-LE. */
+ size_t lfn_size; /* Size *in bytes* of lfn. */
+};
+
+static int add_volume_label (const char *label, size_t di, struct virtual_floppy *floppy);
+static int add_dot_entries (size_t di, struct virtual_floppy *floppy);
+static int add_directory_entry (const struct lfn *lfn, uint8_t attributes, uint32_t file_size, struct stat *statbuf, size_t di, struct virtual_floppy *floppy);
+static uint8_t lfn_checksum (const struct lfn *lfn);
+static void set_times (const struct stat *statbuf, struct dir_entry *entry);
+static int convert_long_file_names (struct lfn *lfns, size_t n);
+static int convert_to_utf16le (const char *name, char **out, size_t *output_len);
+static void free_lfns (struct lfn *lfns, size_t n);
+static ssize_t extend_dir_table (size_t di, struct virtual_floppy *floppy);
+
+/* Create the on disk directory table for dirs[di]. */
+int
+create_directory (size_t di, const char *label,
+ struct virtual_floppy *floppy)
+{
+ size_t i;
+ const size_t nr_subdirs = floppy->dirs[di].nr_subdirs;
+ const size_t nr_files = floppy->dirs[di].nr_files;
+ struct lfn *lfns, *lfn;
+ const char *name;
+ uint8_t attributes;
+ uint32_t file_size;
+ struct stat *statbuf;
+
+ if (di == 0) {
+ /* For root directory, add the volume label entry first. */
+ if (add_volume_label (label, di, floppy) == -1)
+ return -1;
+ }
+ else {
+ /* For subdirectories, add "." and ".." entries. */
+ if (add_dot_entries (di, floppy) == -1)
+ return -1;
+ }
+
+ /* Convert all the filenames in the directory into short and long
+ * names. This has to be done for the whole directory because
+ * conflicting short names must be renamed.
+ */
+ lfns = calloc (nr_subdirs + nr_files, sizeof (struct lfn));
+ if (lfns == NULL) {
+ nbdkit_error ("calloc: %m");
+ return -1;
+ }
+ for (i = 0; i < nr_subdirs; ++i) {
+ const size_t sdi = floppy->dirs[di].subdirs[i];
+ assert (sdi < floppy->nr_dirs);
+
+ name = floppy->dirs[sdi].name;
+ lfns[i].name = name;
+ }
+ for (i = 0; i < nr_files; ++i) {
+ const size_t fi = floppy->dirs[di].files[i];
+ assert (fi < floppy->nr_files);
+
+ name = floppy->files[fi].name;
+ lfns[nr_subdirs+i].name = name;
+ }
+
+ if (convert_long_file_names (lfns, nr_subdirs + nr_files) == -1) {
+ free_lfns (lfns, nr_subdirs + nr_files);
+ return -1;
+ }
+
+ /* Add subdirectories. */
+ attributes = DIR_ENTRY_SUBDIRECTORY; /* Same as set by Linux kernel. */
+ file_size = 0;
+ for (i = 0; i < nr_subdirs; ++i) {
+ const size_t sdi = floppy->dirs[di].subdirs[i];
+ assert (sdi < floppy->nr_dirs);
+
+ lfn = &lfns[i];
+ statbuf = &floppy->dirs[sdi].statbuf;
+
+ if (add_directory_entry (lfn, attributes, file_size,
+ statbuf, di, floppy) == -1) {
+ free_lfns (lfns, nr_subdirs + nr_files);
+ return -1;
+ }
+ }
+
+ /* Add files. */
+ attributes = DIR_ENTRY_ARCHIVE; /* Same as set by Linux kernel. */
+ for (i = 0; i < nr_files; ++i) {
+ const size_t fi = floppy->dirs[di].files[i];
+ assert (fi < floppy->nr_files);
+
+ lfn = &lfns[nr_subdirs+i];
+ statbuf = &floppy->files[fi].statbuf;
+ file_size = statbuf->st_size;
+
+ if (add_directory_entry (lfn, attributes, file_size,
+ statbuf, di, floppy) == -1) {
+ free_lfns (lfns, nr_subdirs + nr_files);
+ return -1;
+ }
+ }
+
+ free_lfns (lfns, nr_subdirs + nr_files);
+ return 0;
+}
+
+/* Add the volume label to dirs[0].table. */
+static int
+add_volume_label (const char *label, size_t di, struct virtual_floppy *floppy)
+{
+ ssize_t i;
+ struct dir_entry entry;
+
+ assert (di == 0);
+
+ memset (&entry, 0, sizeof entry);
+ pad_string (label, 11, entry.name);
+ entry.attributes = DIR_ENTRY_VOLUME_LABEL; /* Same as dosfstools. */
+
+ i = extend_dir_table (di, floppy);
+ if (i == -1)
+ return -1;
+ floppy->dirs[di].table[i] = entry;
+ return 0;
+}
+
+/* Add "." and ".." entries for subdirectories. */
+static int
+add_dot_entries (size_t di, struct virtual_floppy *floppy)
+{
+ ssize_t i, pdi;
+ struct dir_entry entry;
+
+ assert (di != 0);
+
+ memset (&entry, 0, sizeof entry);
+ pad_string (".", 11, entry.name);
+ entry.attributes = DIR_ENTRY_SUBDIRECTORY;
+ set_times (&floppy->dirs[di].statbuf, &entry);
+
+ i = extend_dir_table (di, floppy);
+ if (i == -1)
+ return -1;
+ floppy->dirs[di].table[i] = entry;
+
+ memset (&entry, 0, sizeof entry);
+ pad_string ("..", 11, entry.name);
+ entry.attributes = DIR_ENTRY_SUBDIRECTORY;
+ pdi = floppy->dirs[di].pdi;
+ set_times (&floppy->dirs[pdi].statbuf, &entry);
+
+ i = extend_dir_table (di, floppy);
+ if (i == -1)
+ return -1;
+ floppy->dirs[di].table[i] = entry;
+
+ return 0;
+}
+
+/* Either truncate or pad a string (with spaces). */
+void
+pad_string (const char *label, size_t n, uint8_t *out)
+{
+ const size_t len = strlen (label);
+
+ memcpy (out, label, len <= n ? len : n);
+ if (len < n)
+ memset (out+len, ' ', n-len);
+}
+
+/* Add a directory entry to dirs[di].table. */
+static int
+add_directory_entry (const struct lfn *lfn,
+ uint8_t attributes, uint32_t file_size,
+ struct stat *statbuf,
+ size_t di, struct virtual_floppy *floppy)
+{
+ uint8_t seq, checksum;
+ ssize_t i;
+ size_t j;
+ struct lfn_entry lfn_entry;
+ struct dir_entry entry;
+ int last_seq = 1;
+
+ /* LFN support.
+ *
+ * Iterate in reverse over the sequence numbers. If the filename is:
+ *
+ * "ABCDEFGHIJKLMNO"
+ *
+ * assuming those are UCS-2 codepoints, so lfn_size = 15*2 = 30,
+ * then we generate these LFN sequences:
+ *
+ * seq byte_offset s[13]
+ * 0x42 26 "NO<--zeroes->"
+ * 0x01 0 "ABCDEFGHIJKLM"
+ */
+ checksum = lfn_checksum (lfn);
+ for (seq = 1 + lfn->lfn_size/2/13; seq >= 1; --seq) {
+ size_t byte_offset = (seq-1)*2*13, r;
+ uint16_t s[13];
+
+ /* Copy the portion of the LFN into s.
+ * r = Number of bytes from the original string to copy.
+ */
+ r = lfn->lfn_size - byte_offset;
+ if (r > 26)
+ memcpy (s, &lfn->lfn[byte_offset], 26);
+ else {
+ memcpy (s, &lfn->lfn[byte_offset], r);
+ /* Pad remaining filename with 0. */
+ for (j = r/2; j < 13; ++j)
+ s[j] = htole16 (0);
+ }
+
+ memset (&lfn_entry, 0, sizeof lfn_entry);
+ lfn_entry.seq = seq;
+ if (last_seq) {
+ lfn_entry.seq |= 0x40;
+ last_seq = 0;
+ }
+ lfn_entry.attributes = 0xf;
+ lfn_entry.checksum = checksum;
+
+ /* Copy the name portion to the fields in the LFN entry. */
+ memcpy (lfn_entry.name1, &s[0], 5*2);
+ memcpy (lfn_entry.name2, &s[5], 6*2);
+ memcpy (lfn_entry.name3, &s[11], 2*2);
+
+ i = extend_dir_table (di, floppy);
+ if (i == -1)
+ return -1;
+ memcpy (&floppy->dirs[di].table[i], &lfn_entry, sizeof (struct dir_entry));
+ }
+
+ /* Create the 8.3 (short name / DOS-compatible) entry. */
+ memset (&entry, 0, sizeof entry);
+ memcpy (entry.name, lfn->short_base, 8);
+ memcpy (entry.name+8, lfn->short_ext, 3);
+ entry.attributes = attributes;
+ set_times (statbuf, &entry);
+ entry.size = htole32 (file_size);
+ /* Note that entry.cluster_hi and .cluster_lo are set later on in
+ * update_directory_first_cluster.
+ */
+
+ i = extend_dir_table (di, floppy);
+ if (i == -1)
+ return -1;
+ floppy->dirs[di].table[i] = entry;
+
+ return 0;
+}
+
+/* Compute a checksum for the shortname. In writable LFN filesystems
+ * this is used to check whether a non-LFN-aware operating system
+ * (ie. MS-DOS) has edited the directory. It would ignore the hidden
+ * LFN entries and so the checksum would be wrong.
+ */
+static uint8_t
+lfn_checksum (const struct lfn *lfn)
+{
+ uint8_t checksum;
+ size_t i;
+
+ checksum = 0;
+ for (i = 0; i < 8; ++i)
+ checksum = ((checksum & 1) << 7) + (checksum >> 1) + lfn->short_base[i];
+ for (i = 0; i < 3; ++i)
+ checksum = ((checksum & 1) << 7) + (checksum >> 1) + lfn->short_ext[i];
+
+ return checksum;
+}
+
+/* Set the {c,m,a}date and {c,m}time fields in the entry structure
+ * based on metadata found in the statbuf.
+ */
+#define MAKE_ENTRY_TIME(tm) \
+ ((tm).tm_hour << 11 | (tm).tm_min << 5 | ((tm).tm_sec / 2))
+#define MAKE_ENTRY_DATE(tm) \
+ (((tm).tm_year - 80) << 9 | ((tm).tm_mon + 1) << 5 | (tm).tm_mday)
+
+static void
+set_times (const struct stat *statbuf, struct dir_entry *entry)
+{
+ struct tm ctime_tm, mtime_tm, atime_tm;
+
+ localtime_r (&statbuf->st_ctime, &ctime_tm);
+ entry->ctime = MAKE_ENTRY_TIME (ctime_tm);
+ entry->ctime_10ms = 100 * (ctime_tm.tm_sec % 2);
+ entry->cdate = MAKE_ENTRY_DATE (ctime_tm);
+
+ localtime_r (&statbuf->st_mtime, &mtime_tm);
+ entry->mtime = MAKE_ENTRY_TIME (mtime_tm);
+ entry->mdate = MAKE_ENTRY_DATE (mtime_tm);
+
+ localtime_r (&statbuf->st_atime, &atime_tm);
+ entry->adate = MAKE_ENTRY_DATE (atime_tm);
+}
+
+#define UPPER_ASCII "ABCDEFGHIJKLMNOPQRSTUVWXYZ"
+#define LOWER_ASCII "abcdefghijklmnopqrstuvwxyz"
+#define NUMBERS_ASCII "0123456789"
+
+/* Characters which are valid in short names.
+ *
+ * Lowercase is not actually valid, but it makes the
+ * implementation below simpler and we toupper the final string.
+ *
+ * ~ is also valid but don't include it here because we want to
+ * keep it as a special character for renaming duplicates below.
+ */
+static const char short_name_ok[] =
+ UPPER_ASCII LOWER_ASCII NUMBERS_ASCII "!#$%&'()-@^_`{}";
+
+static int
+convert_long_file_names (struct lfn *lfns, size_t n)
+{
+ size_t i, j, len;
+ struct lfn *lfn;
+
+ /* Split the filenames to generate a list of short basenames + extensions. */
+ for (i = 0; i < n; ++i) {
+ const char *p;
+
+ lfn = &lfns[i];
+
+ len = strspn (lfn->name, short_name_ok);
+ memcpy (lfns[i].short_base, lfn->name, len <= 8 ? len : 8);
+ if (len < 8)
+ memset (lfn->short_base+len, ' ', 8-len);
+ /* Look for the extension. */
+ p = strrchr (lfn->name, '.');
+ if (p) {
+ p++;
+ len = strspn (p, short_name_ok);
+ memcpy (lfn->short_ext, p, len <= 3 ? len : 3);
+ if (len < 3)
+ memset (lfn->short_ext+len, ' ', 3-len);
+ }
+ else
+ memset (lfn->short_ext, ' ', sizeof lfn->short_ext);
+
+ /* Convert short name to upper case (ASCII only). */
+ for (j = 0; j < 8; ++j) {
+ if (strchr (LOWER_ASCII, lfn->short_base[j]))
+ lfn->short_base[j] -= 32;
+ }
+ for (j = 0; j < 3; ++j) {
+ if (strchr (LOWER_ASCII, lfn->short_ext[j]))
+ lfn->short_ext[j] -= 32;
+ }
+
+ /* Convert the original filename to UTF16-LE. Maximum LFN length
+ * is 0x3f * 13 = 819 UCS-2 characters.
+ */
+ if (convert_to_utf16le (lfn->name, &lfn->lfn, &lfn->lfn_size) == -1)
+ return -1;
+ if (lfn->lfn_size > 2*819) {
+ nbdkit_error ("%s: filename is too long", lfn->name);
+ return -1;
+ }
+ }
+
+ /* Now we must see if some short filenames are duplicates and
+ * rename them. XXX Unfortunately O(n^2).
+ */
+ for (i = 1; i < n; ++i) {
+ for (j = 0; j < i; ++j) {
+ if (memcmp (lfns[i].short_base, lfns[j].short_base, 8) == 0 &&
+ memcmp (lfns[i].short_ext, lfns[j].short_ext, 3) == 0) {
+ char s[9];
+ ssize_t k;
+
+ /* Entry i is a duplicate of j (j < i). So we will rename i. */
+ lfn = &lfns[i];
+
+ len = snprintf (s, sizeof s, "~%zu", i);
+ assert (len >= 2 && len <= 8);
+
+ k = 8-len;
+ while (k > 0 && lfn->short_base[k] == ' ')
+ k--;
+ memcpy (&lfn->short_base[k], s, len);
+ }
+ }
+ }
+
+ return 0;
+}
+
+static const char lfn_encoding[] =
+ "UTF-16LE"
+#ifdef __GNU_LIBRARY__
+ "//TRANSLIT"
+#endif
+ ;
+
+static int
+convert_to_utf16le (const char *name, char **out, size_t *output_len)
+{
+ iconv_t ic;
+ const size_t input_len = strlen (name);
+ size_t outalloc, inlen, outlen, prev, r;
+ const char *inp;
+ char *outp;
+
+ /* XXX Assumes current locale is UTF-8. */
+ ic = iconv_open (lfn_encoding, "UTF-8");
+ if (ic == (iconv_t)-1) {
+ nbdkit_error ("iconv: %m");
+ return -1;
+ }
+ outalloc = input_len;
+
+ again:
+ inlen = input_len;
+ outlen = outalloc;
+ *out = malloc (outlen + 1);
+ if (*out == NULL) {
+ nbdkit_error ("malloc: %m");
+ iconv_close (ic);
+ return -1;
+ }
+ inp = name;
+ outp = *out;
+
+ r = iconv (ic, (char **) &inp, &inlen, &outp, &outlen);
+ if (r == (size_t)-1) {
+ if (errno == E2BIG) {
+ prev = outalloc;
+ /* Try again with a larger buffer. */
+ free (*out);
+ *out = NULL;
+ outalloc *= 2;
+ if (outalloc < prev) {
+ nbdkit_error ("iconv: %m");
+ iconv_close (ic);
+ return -1;
+ }
+ /* Erase errno so we don't return it to the caller by accident. */
+ errno = 0;
+ goto again;
+ }
+ else {
+ /* EILSEQ etc. */
+ nbdkit_error ("iconv: %s: %m", name);
+ free (*out);
+ *out = NULL;
+ iconv_close (ic);
+ return -1;
+ }
+ }
+ *outp = '\0';
+ iconv_close (ic);
+ if (output_len != NULL)
+ *output_len = outp - *out;
+
+ return 0;
+}
+
+static void
+free_lfns (struct lfn *lfns, size_t n)
+{
+ size_t i;
+
+ for (i = 0; i < n; ++i)
+ free (lfns[i].lfn);
+ free (lfns);
+}
+
+/* Extend dirs[di].table by 1 directory entry. */
+static ssize_t
+extend_dir_table (size_t di, struct virtual_floppy *floppy)
+{
+ struct dir_entry *p;
+ size_t i;
+
+ i = floppy->dirs[di].table_entries;
+ p = realloc (floppy->dirs[di].table, sizeof (struct dir_entry) * (i+1));
+ if (p == NULL) {
+ nbdkit_error ("realloc: %m");
+ return -1;
+ }
+ floppy->dirs[di].table = p;
+ floppy->dirs[di].table_entries++;
+ memset (&floppy->dirs[di].table[i], 0, sizeof (struct dir_entry));
+ return i;
+}
+
+/* In create_directory / add_directory_entry above we run before we
+ * have finalised the .first_cluster fields (because that cannot be
+ * done until we have sized all the directories). Here we fix the
+ * directory entries with the final cluster number. Note we must only
+ * touch plain directory entries (not the volume label or LFN).
+ */
+int
+update_directory_first_cluster (size_t di, struct virtual_floppy *floppy)
+{
+ size_t i, j, pdi;
+ const size_t nr_subdirs = floppy->dirs[di].nr_subdirs;
+ const size_t nr_files = floppy->dirs[di].nr_files;
+ uint32_t first_cluster;
+ struct dir_entry *entry;
+
+ /* NB: This function makes assumptions about the order in which
+ * subdirectories and files are added to the table so that we can
+ * avoid having to maintain another mapping from subdirs/files to
+ * table entries.
+ */
+ i = 0;
+ for (j = 0; j < floppy->dirs[di].table_entries; ++j) {
+ entry = &floppy->dirs[di].table[j];
+
+ /* Skip LFN entries. */
+ if (entry->attributes == 0xf)
+ continue; /* don't increment i */
+
+ /* Skip the volume label in the root directory. */
+ if (entry->attributes == DIR_ENTRY_VOLUME_LABEL)
+ continue; /* don't increment i */
+
+ /* Set the first cluster of the "." entry to point to self. */
+ if (entry->attributes == DIR_ENTRY_SUBDIRECTORY &&
+ memcmp (entry->name, ". ", 11) == 0) {
+ first_cluster = floppy->dirs[di].first_cluster;
+ entry->cluster_hi = htole16 (first_cluster >> 16);
+ entry->cluster_lo = htole16 (first_cluster & 0xffff);
+ continue; /* don't increment i */
+ }
+
+ /* Set the first cluster of the ".." entry to point to parent. */
+ if (entry->attributes == DIR_ENTRY_SUBDIRECTORY &&
+ memcmp (entry->name, ".. ", 11) == 0) {
+ pdi = floppy->dirs[di].pdi;
+ first_cluster = floppy->dirs[pdi].first_cluster;
+ entry->cluster_hi = htole16 (first_cluster >> 16);
+ entry->cluster_lo = htole16 (first_cluster & 0xffff);
+ continue; /* don't increment i */
+ }
+
+ /* Otherwise it's a short name entry so we must now update the
+ * first cluster.
+ */
+ if (i < nr_subdirs) {
+ const size_t sdi = floppy->dirs[di].subdirs[i];
+ assert (sdi < floppy->nr_dirs);
+ first_cluster = floppy->dirs[sdi].first_cluster;
+ }
+ else if (i < nr_subdirs + nr_files) {
+ const size_t fi = floppy->dirs[di].files[i-nr_subdirs];
+ assert (fi < floppy->nr_files);
+ first_cluster = floppy->files[fi].first_cluster;
+ }
+ else
+ abort ();
+
+ entry->cluster_hi = htole16 (first_cluster >> 16);
+ entry->cluster_lo = htole16 (first_cluster & 0xffff);
+ ++i;
+ }
+
+ return 0;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include <nbdkit-plugin.h>
+
+#include "regions.h"
+
+#include "virtual-floppy.h"
+
+/* Directory. */
+static char *dir = NULL;
+
+/* Volume label. */
+static const char *label = "NBDKITFLOPY";
+
+/* Virtual floppy. */
+static struct virtual_floppy floppy;
+
+static void
+floppy_load (void)
+{
+ init_virtual_floppy (&floppy);
+}
+
+static void
+floppy_unload (void)
+{
+ free (dir);
+ free_virtual_floppy (&floppy);
+}
+
+static int
+floppy_config (const char *key, const char *value)
+{
+ if (strcmp (key, "dir") == 0) {
+ if (dir != NULL) {
+ /* TODO: Support merging of multiple directories, like iso plugin. */
+ nbdkit_error ("dir=<DIRECTORY> must only be set once");
+ return -1;
+ }
+ dir = nbdkit_realpath (value);
+ if (dir == NULL)
+ return -1;
+ }
+ else if (strcmp (key, "label") == 0) {
+ label = value;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+floppy_config_complete (void)
+{
+ if (dir == NULL) {
+ nbdkit_error ("you must supply the dir=<DIRECTORY> parameter "
+ "after the plugin name on the command line");
+ return -1;
+ }
+
+ return create_virtual_floppy (dir, label, &floppy);
+}
+
+#define floppy_config_help \
+ "dir=<DIRECTORY> (required) The directory to serve.\n" \
+ "label=<LABEL> The volume label." \
+
+static void *
+floppy_open (int readonly)
+{
+ return NBDKIT_HANDLE_NOT_NEEDED;
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* Get the file size. */
+static int64_t
+floppy_get_size (void *handle)
+{
+ return virtual_size (&floppy.regions);
+}
+
+/* Serves the same data over multiple connections. */
+static int
+floppy_can_multi_conn (void *handle)
+{
+ return 1;
+}
+
+/* Read data from the file. */
+static int
+floppy_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ while (count > 0) {
+ const struct region *region = find_region (&floppy.regions, offset);
+ size_t i, len;
+ const char *host_path;
+ int fd;
+ ssize_t r;
+
+ /* Length to end of region. */
+ len = region->end - offset + 1;
+ if (len > count)
+ len = count;
+
+ switch (region->type) {
+ case region_file:
+ i = region->u.i;
+ assert (i < floppy.nr_files);
+ host_path = floppy.files[i].host_path;
+ fd = open (host_path, O_RDONLY|O_CLOEXEC);
+ if (fd == -1) {
+ nbdkit_error ("open: %s: %m", host_path);
+ return -1;
+ }
+ r = pread (fd, buf, len, offset - region->start);
+ if (r == -1) {
+ nbdkit_error ("pread: %s: %m", host_path);
+ close (fd);
+ return -1;
+ }
+ if (r == 0) {
+ nbdkit_error ("pread: %s: unexpected end of file", host_path);
+ close (fd);
+ return -1;
+ }
+ close (fd);
+ len = r;
+ break;
+
+ case region_data:
+ memcpy (buf, ®ion->u.data[offset - region->start], len);
+ break;
+
+ case region_zero:
+ memset (buf, 0, len);
+ break;
+ }
+
+ count -= len;
+ buf += len;
+ offset += len;
+ }
+
+ return 0;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "floppy",
+ .longname = "nbdkit floppy plugin",
+ .version = PACKAGE_VERSION,
+ .load = floppy_load,
+ .unload = floppy_unload,
+ .config = floppy_config,
+ .config_complete = floppy_config_complete,
+ .config_help = floppy_config_help,
+ .magic_config_key = "dir",
+ .open = floppy_open,
+ .get_size = floppy_get_size,
+ .can_multi_conn = floppy_can_multi_conn,
+ .pread = floppy_pread,
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+=head1 NAME
+
+nbdkit-floppy-plugin - create virtual floppy disk from directory
+
+=head1 SYNOPSIS
+
+ nbdkit floppy [dir=]DIRECTORY
+ [label=LABEL]
+
+=head1 DESCRIPTION
+
+C<nbdkit-floppy-plugin> is a plugin for L<nbdkit(1)> which creates a
+virtual FAT-formatted floppy disk image from a directory on the fly.
+The files in the specified directory (and subdirectories) appear in
+the virtual floppy, which is served read-only over the NBD protocol.
+
+The virtual floppy disk will have a single partition (using an MBR
+partition table). In that partition will be a virtual FAT32
+filesystem containing the files. Long filenames are supported.
+
+To create a CD/ISO, see L<nbdkit-iso-plugin(1)>. To create a Linux
+compatible virtual disk, see L<nbdkit-linuxdisk-plugin(1)>.
+
+B<Note:> The plugin does not save a temporary copy of the files, so
+you must leave the directory alone while nbdkit is running, else you
+may get an error (for example if the plugin tries to open one of the
+files which you have moved or deleted). This is different from how
+L<nbdkit-iso-plugin(1)> and L<nbdkit-linuxdisk-plugin(1)> work, as
+both of those plugins keep a temporary copy of the files and
+directories.
+
+=head1 EXAMPLE
+
+Create a virtual floppy disk:
+
+ nbdkit floppy /path/to/directory
+
+=head1 PARAMETERS
+
+=over 4
+
+=item [B<dir=>]DIRECTORY
+
+Specify the directory containing files and subdirectories which will
+be added to the virtual floppy disk. Files inside this directory will
+appear in the root directory of the virtual floppy.
+
+This parameter is required.
+
+C<dir=> is a magic config key and may be omitted in most cases.
+See L<nbdkit(1)/Magic parameters>.
+
+=item B<label=>LABEL
+
+The optional volume label for the filesystem. This may be up to 11
+ASCII characters. If omitted, C<NBDKITFLOPY> is used.
+
+=back
+
+=head1 LIMITATIONS
+
+The maximum size of the disk is around 2TB. The maximum size of a
+single file is 4GB. Non-regular files (such as block special,
+symbolic links, sockets) are not supported and will be ignored.
+
+The plugin does not support writes.
+
+The virtual floppy will not be bootable. This could be added in
+future (using SYSLINUX) but requires considerable work. As a
+workaround use L<nbdkit-iso-plugin(1)> instead.
+
+FAT32 is always used, even for small disks (where dosfstools, for
+example, would choose FAT12 or FAT16). This results in extra wasted
+space, but since it is only I<virtual> wasted space it isn't really
+important, and it simplifies the implementation greatly.
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<nbdkit-file-plugin(1)>,
+L<nbdkit-linuxdisk-plugin(1)>,
+L<nbdkit-iso-plugin(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <dirent.h>
+#include <assert.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <nbdkit-plugin.h>
+
+#include "get-current-dir-name.h"
+
+#include "byte-swapping.h"
+#include "regions.h"
+#include "rounding.h"
+
+#include "virtual-floppy.h"
+
+/* This is the Windows 98 OEM name, and some sites recommend using it
+ * for greatest compatibility.
+ */
+#define OEM_NAME "MSWIN4.1"
+
+static ssize_t visit (const char *dir, struct virtual_floppy *floppy);
+static int visit_subdirectory (const char *dir, const char *name, const struct stat *statbuf, size_t di, struct virtual_floppy *floppy);
+static int visit_file (const char *dir, const char *name, const struct stat *statbuf, size_t di, struct virtual_floppy *floppy);
+static int create_mbr (struct virtual_floppy *floppy);
+static void chs_too_large (uint8_t *out);
+static int create_partition_boot_sector (const char *label, struct virtual_floppy *floppy);
+static int create_fsinfo (struct virtual_floppy *floppy);
+static int create_fat (struct virtual_floppy *floppy);
+static void write_fat_file (uint32_t first_cluster, uint32_t nr_clusters, struct virtual_floppy *floppy);
+static int create_regions (struct virtual_floppy *floppy);
+
+void
+init_virtual_floppy (struct virtual_floppy *floppy)
+{
+ memset (floppy, 0, sizeof *floppy);
+ init_regions (&floppy->regions);
+
+ /* Assert that the on disk struct sizes are correct. */
+ assert (sizeof (struct dir_entry) == 32);
+ assert (sizeof (struct lfn_entry) == 32);
+ assert (sizeof (struct bootsector) == 512);
+ assert (sizeof (struct fsinfo) == 512);
+}
+
+int
+create_virtual_floppy (const char *dir, const char *label,
+ struct virtual_floppy *floppy)
+{
+ size_t i;
+ uint64_t nr_bytes, nr_clusters;
+ uint32_t cluster;
+
+ if (visit (dir, floppy) == -1)
+ return -1;
+
+ nbdkit_debug ("floppy: %zu directories and %zu files",
+ floppy->nr_dirs, floppy->nr_files);
+
+ /* Create the on disk directory tables. */
+ for (i = 0; i < floppy->nr_dirs; ++i) {
+ if (create_directory (i, label, floppy) == -1)
+ return -1;
+ }
+
+ /* We now have a complete list of directories and files, and
+ * directories have been converted to on disk directory tables. So
+ * we can assign them to clusters and also precisely calculate the
+ * size of the data region and hence the size of the FAT.
+ *
+ * The first cluster number is always 2 (0 and 1 are reserved), and
+ * (in this implementation) always contains the root directory.
+ */
+ floppy->data_size = 0;
+ cluster = 2;
+ for (i = 0; i < floppy->nr_dirs; ++i) {
+ floppy->dirs[i].first_cluster = cluster;
+ nr_bytes =
+ ROUND_UP (floppy->dirs[i].table_entries * sizeof (struct dir_entry),
+ CLUSTER_SIZE);
+ floppy->data_size += nr_bytes;
+ nr_clusters = nr_bytes / CLUSTER_SIZE;
+ if (cluster + nr_clusters > UINT32_MAX)
+ goto too_big;
+ floppy->dirs[i].nr_clusters = nr_clusters;
+ cluster += nr_clusters;
+ }
+ for (i = 0; i < floppy->nr_files; ++i) {
+ floppy->files[i].first_cluster = cluster;
+ nr_bytes = ROUND_UP (floppy->files[i].statbuf.st_size, CLUSTER_SIZE);
+ floppy->data_size += nr_bytes;
+ nr_clusters = nr_bytes / CLUSTER_SIZE;
+ if (cluster + nr_clusters > UINT32_MAX)
+ goto too_big;
+ floppy->files[i].nr_clusters = nr_clusters;
+ cluster += nr_clusters;
+ }
+
+ floppy->data_clusters = floppy->data_size / CLUSTER_SIZE;
+
+ /* Despite its name, FAT32 only allows 28 bit cluster numbers, so
+ * give an error if we go beyond this.
+ */
+ if (floppy->data_clusters >= 0x10000000) {
+ too_big:
+ nbdkit_error ("disk image is too large for the FAT32 disk format");
+ return -1;
+ }
+
+ nbdkit_debug ("floppy: %" PRIu64 " data clusters, "
+ "largest cluster number %" PRIu32 ", "
+ "%" PRIu64 " bytes",
+ floppy->data_clusters,
+ cluster-1,
+ floppy->data_size);
+
+ floppy->fat_entries = floppy->data_clusters + 2;
+ floppy->fat_clusters = DIV_ROUND_UP (floppy->fat_entries * 4, CLUSTER_SIZE);
+
+ nbdkit_debug ("floppy: %" PRIu64 " FAT entries", floppy->fat_entries);
+
+ /* We can now decide where we will place the FATs and data region on disk. */
+ floppy->fat2_start_sector =
+ 2080 + floppy->fat_clusters * SECTORS_PER_CLUSTER;
+ floppy->data_start_sector =
+ floppy->fat2_start_sector + floppy->fat_clusters * SECTORS_PER_CLUSTER;
+ floppy->data_last_sector =
+ floppy->data_start_sector + floppy->data_clusters * SECTORS_PER_CLUSTER - 1;
+
+ /* We now have to go back and update the cluster numbers in the
+ * directory entries (which we didn't have available during
+ * create_directory above).
+ */
+ for (i = 0; i < floppy->nr_dirs; ++i) {
+ if (update_directory_first_cluster (i, floppy) == -1)
+ return -1;
+ }
+
+ /* Create MBR. */
+ if (create_mbr (floppy) == -1)
+ return -1;
+
+ /* Create partition first sector. */
+ if (create_partition_boot_sector (label, floppy) == -1)
+ return -1;
+
+ /* Create filesystem information sector. */
+ if (create_fsinfo (floppy) == -1)
+ return -1;
+
+ /* Allocate and populate FAT. */
+ if (create_fat (floppy) == -1)
+ return -1;
+
+ /* Now we know how large everything is we can create the virtual
+ * disk regions.
+ */
+ if (create_regions (floppy) == -1)
+ return -1;
+
+ return 0;
+}
+
+void
+free_virtual_floppy (struct virtual_floppy *floppy)
+{
+ size_t i;
+
+ free_regions (&floppy->regions);
+
+ free (floppy->fat);
+
+ for (i = 0; i < floppy->nr_files; ++i) {
+ free (floppy->files[i].name);
+ free (floppy->files[i].host_path);
+ }
+ free (floppy->files);
+
+ for (i = 0; i < floppy->nr_dirs; ++i) {
+ free (floppy->dirs[i].name);
+ free (floppy->dirs[i].subdirs);
+ free (floppy->dirs[i].files);
+ free (floppy->dirs[i].table);
+ }
+ free (floppy->dirs);
+}
+
+/* Visit files and directories.
+ *
+ * This constructs the floppy->dirs and floppy->files lists.
+ *
+ * Returns the directory index, or -1 on error.
+ */
+static ssize_t
+visit (const char *dir, struct virtual_floppy *floppy)
+{
+ void *np;
+ size_t di;
+ char *origdir;
+ DIR *DIR;
+ struct dirent *d;
+ int err;
+ struct stat statbuf;
+
+ /* Allocate a new index in the directory array. Note that the root
+ * directory will always be at dirs[0].
+ */
+ di = floppy->nr_dirs;
+ np = realloc (floppy->dirs, sizeof (struct dir) * (di+1));
+ if (np == NULL) {
+ nbdkit_error ("realloc: %m");
+ goto error0;
+ }
+ floppy->dirs = np;
+ floppy->nr_dirs++;
+ memset (&floppy->dirs[di], 0, sizeof (struct dir));
+
+ /* Because this is called from config_complete, before nbdkit
+ * daemonizes or starts any threads, it's safe to use chdir here and
+ * greatly simplifies the code. However we must chdir back to the
+ * original directory at the end.
+ */
+ origdir = get_current_dir_name ();
+ if (origdir == NULL) {
+ nbdkit_error ("get_current_dir_name: %m");
+ goto error0;
+ }
+ if (chdir (dir) == -1) {
+ nbdkit_error ("chdir: %s: %m", dir);
+ goto error1;
+ }
+
+ DIR = opendir (".");
+ if (DIR == NULL) {
+ nbdkit_error ("opendir: %s: %m", dir);
+ goto error1;
+ }
+
+ while (errno = 0, (d = readdir (DIR)) != NULL) {
+ if (strcmp (d->d_name, ".") == 0 ||
+ strcmp (d->d_name, "..") == 0)
+ continue;
+
+ if (lstat (d->d_name, &statbuf) == -1) {
+ nbdkit_error ("stat: %s/%s: %m", dir, d->d_name);
+ goto error2;
+ }
+
+ /* Directory. */
+ if (S_ISDIR (statbuf.st_mode)) {
+ if (visit_subdirectory (dir, d->d_name, &statbuf, di, floppy) == -1)
+ goto error2;
+ }
+ /* Regular file. */
+ else if (S_ISREG (statbuf.st_mode)) {
+ if (visit_file (dir, d->d_name, &statbuf, di, floppy) == -1)
+ goto error2;
+ }
+ /* else ALL other file types are ignored - see documentation. */
+ }
+
+ /* Did readdir fail? */
+ if (errno != 0) {
+ nbdkit_error ("readdir: %s: %m", dir);
+ goto error2;
+ }
+
+ if (closedir (DIR) == -1) {
+ nbdkit_error ("closedir: %s: %m", dir);
+ goto error1;
+ }
+
+ if (chdir (origdir) == -1) {
+ nbdkit_error ("chdir: %s: %m", origdir);
+ goto error1;
+ }
+ free (origdir);
+ return di;
+
+ error2:
+ closedir (DIR);
+ error1:
+ err = errno;
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-result"
+ chdir (origdir);
+#pragma GCC diagnostic pop
+ errno = err;
+ free (origdir);
+ error0:
+ return -1;
+}
+
+/* This is called to visit a subdirectory in a directory. It
+ * recursively calls the visit() function, and then adds the
+ * subdirectory to the list of subdirectories in the parent.
+ */
+static int
+visit_subdirectory (const char *dir, const char *name,
+ const struct stat *statbuf, size_t di,
+ struct virtual_floppy *floppy)
+{
+ void *np;
+ char *subdir;
+ ssize_t sdi; /* subdirectory index */
+ size_t i;
+
+ if (asprintf (&subdir, "%s/%s", dir, name) == -1) {
+ nbdkit_error ("asprintf: %m");
+ return -1;
+ }
+ /* Recursively visit this directory. As a side effect this adds the
+ * new subdirectory to the global list of directories, and returns
+ * the index in that list (sdi).
+ */
+ sdi = visit (subdir, floppy);
+ if (sdi == -1) {
+ free (subdir);
+ return -1;
+ }
+ free (subdir);
+
+ /* We must set sdi->name because visit() cannot set it. */
+ floppy->dirs[sdi].name = strdup (name);
+ if (floppy->dirs[sdi].name == NULL) {
+ nbdkit_error ("strdup: %m");
+ return -1;
+ }
+ floppy->dirs[sdi].statbuf = *statbuf;
+ floppy->dirs[sdi].pdi = di;
+
+ /* Add to the list of subdirs in the parent directory (di). */
+ i = floppy->dirs[di].nr_subdirs;
+ np = realloc (floppy->dirs[di].subdirs, sizeof (size_t) * (i+1));
+ if (np == NULL) {
+ nbdkit_error ("realloc: %m");
+ return -1;
+ }
+ floppy->dirs[di].subdirs = np;
+ floppy->dirs[di].nr_subdirs++;
+ floppy->dirs[di].subdirs[i] = sdi;
+
+ return 0;
+}
+
+/* This is called to visit a file in a directory. It performs some
+ * checks and then adds the file to the global list of files, and also
+ * adds the file to the list of files in the parent directory.
+ */
+static int
+visit_file (const char *dir, const char *name,
+ const struct stat *statbuf, size_t di,
+ struct virtual_floppy *floppy)
+{
+ void *np;
+ char *host_path;
+ size_t fi, i;
+
+ if (asprintf (&host_path, "%s/%s", dir, name) == -1) {
+ nbdkit_error ("asprintf: %m");
+ return -1;
+ }
+
+ if (statbuf->st_size >= UINT32_MAX) {
+ nbdkit_error ("%s: file is larger than maximum supported by VFAT",
+ host_path);
+ free (host_path);
+ return -1;
+ }
+
+ /* Add to global list of files. */
+ fi = floppy->nr_files;
+ np = realloc (floppy->files, sizeof (struct file) * (fi+1));
+ if (np == NULL) {
+ nbdkit_error ("realloc: %m");
+ free (host_path);
+ return -1;
+ }
+ floppy->files = np;
+ floppy->nr_files++;
+ floppy->files[fi].name = strdup (name);
+ if (floppy->files[fi].name == NULL) {
+ nbdkit_error ("strdup: %m");
+ free (host_path);
+ return -1;
+ }
+ floppy->files[fi].host_path = host_path;
+ floppy->files[fi].statbuf = *statbuf;
+
+ /* Add to the list of files in the parent directory (di). */
+ i = floppy->dirs[di].nr_files;
+ np = realloc (floppy->dirs[di].files, sizeof (size_t) * (i+1));
+ if (np == NULL) {
+ nbdkit_error ("realloc: %m");
+ return -1;
+ }
+ floppy->dirs[di].files = np;
+ floppy->dirs[di].nr_files++;
+ floppy->dirs[di].files[i] = fi;
+
+ return 0;
+}
+
+/* Create the Master Boot Record sector of the disk. */
+static int
+create_mbr (struct virtual_floppy *floppy)
+{
+ uint32_t num_sectors;
+ uint64_t last_sector;
+
+ /* The last sector number in the partition. */
+ last_sector =
+ floppy->data_start_sector
+ + floppy->data_clusters * SECTORS_PER_CLUSTER
+ - 1;
+
+ nbdkit_debug ("floppy: last sector %" PRIu64, last_sector);
+
+ if (last_sector >= UINT32_MAX) {
+ nbdkit_error ("disk image is too large for the MBR disk format");
+ return -1;
+ }
+ num_sectors = last_sector - 2048 + 1;
+
+ memcpy (floppy->mbr.oem_name, OEM_NAME, sizeof floppy->mbr.oem_name);
+
+ /* We could choose a random disk signature, but it seems safer to
+ * leave the field zero.
+ */
+ floppy->mbr.disk_signature = htole32 (0);
+ floppy->mbr.boot_signature[0] = 0x55;
+ floppy->mbr.boot_signature[1] = 0xAA;
+
+ /* Only one partition. */
+ floppy->mbr.partition[0].bootable = 0;
+ chs_too_large (floppy->mbr.partition[0].chs);
+ floppy->mbr.partition[0].part_type = 0x0c;
+ chs_too_large (floppy->mbr.partition[0].chs2);
+ floppy->mbr.partition[0].start_sector = htole32 (2048);
+ floppy->mbr.partition[0].num_sectors = htole32 (num_sectors);
+
+ return 0;
+}
+
+static void
+chs_too_large (uint8_t *out)
+{
+ const int c = 1023, h = 254, s = 63;
+
+ out[0] = h;
+ out[1] = (c & 0x300) >> 2 | s;
+ out[2] = c & 0xff;
+}
+
+static int
+create_partition_boot_sector (const char *label, struct virtual_floppy *floppy)
+{
+ memcpy (floppy->bootsect.oem_name, OEM_NAME,
+ sizeof floppy->bootsect.oem_name);
+
+ floppy->bootsect.bytes_per_sector = htole16 (SECTOR_SIZE);
+ floppy->bootsect.sectors_per_cluster = SECTORS_PER_CLUSTER;
+ floppy->bootsect.reserved_sectors = htole16 (32);
+ floppy->bootsect.nr_fats = 2;
+ floppy->bootsect.nr_root_dir_entries = htole16 (0);
+ floppy->bootsect.old_nr_sectors = htole16 (0);
+ floppy->bootsect.media_descriptor = 0xf8;
+ floppy->bootsect.old_sectors_per_fat = htole16 (0);
+ floppy->bootsect.sectors_per_track = htole16 (0);
+ floppy->bootsect.nr_heads = htole16 (0);
+ floppy->bootsect.nr_hidden_sectors = htole32 (0);
+ floppy->bootsect.nr_sectors = htole32 (floppy->data_last_sector + 1);
+
+ floppy->bootsect.sectors_per_fat =
+ htole32 (floppy->fat_clusters * SECTORS_PER_CLUSTER);
+ floppy->bootsect.mirroring = htole16 (0);
+ floppy->bootsect.fat_version = htole16 (0);
+ floppy->bootsect.root_directory_cluster = htole32 (2);
+ floppy->bootsect.fsinfo_sector = htole16 (1);
+ floppy->bootsect.backup_bootsect = htole16 (6);
+ floppy->bootsect.physical_drive_number = 0;
+ floppy->bootsect.extended_boot_signature = 0x29;
+ /* The volume ID should be generated based on the filesystem
+ * creation date and time, but the old qemu VVFAT driver just used a
+ * fixed number here.
+ */
+ floppy->bootsect.volume_id = htole32 (0x01020304);
+ pad_string (label, 11, floppy->bootsect.volume_label);
+ memcpy (floppy->bootsect.fstype, "FAT32 ", 8);
+
+ floppy->bootsect.boot_signature[0] = 0x55;
+ floppy->bootsect.boot_signature[1] = 0xAA;
+
+ return 0;
+}
+
+static int
+create_fsinfo (struct virtual_floppy *floppy)
+{
+ floppy->fsinfo.signature[0] = 0x52; /* "RRaA" */
+ floppy->fsinfo.signature[1] = 0x52;
+ floppy->fsinfo.signature[2] = 0x61;
+ floppy->fsinfo.signature[3] = 0x41;
+ floppy->fsinfo.signature2[0] = 0x72; /* "rrAa" */
+ floppy->fsinfo.signature2[1] = 0x72;
+ floppy->fsinfo.signature2[2] = 0x41;
+ floppy->fsinfo.signature2[3] = 0x61;
+ floppy->fsinfo.free_data_clusters = htole32 (0);
+ floppy->fsinfo.last_free_cluster = htole32 (2 + floppy->data_clusters);
+ floppy->fsinfo.signature3[0] = 0x00;
+ floppy->fsinfo.signature3[1] = 0x00;
+ floppy->fsinfo.signature3[2] = 0x55;
+ floppy->fsinfo.signature3[3] = 0xAA;
+ return 0;
+}
+
+/* Allocate and populate the File Allocation Table. */
+static int
+create_fat (struct virtual_floppy *floppy)
+{
+ size_t i;
+
+ /* Note there is only one copy held in memory. The two FAT
+ * regions in the virtual disk point to the same copy.
+ */
+ floppy->fat = calloc (floppy->fat_entries, 4);
+ if (floppy->fat == NULL) {
+ nbdkit_error ("calloc: %m");
+ return -1;
+ }
+
+ /* Populate the FAT. First two entries are reserved and
+ * contain standard data.
+ */
+ floppy->fat[0] = htole32 (0x0ffffff8);
+ floppy->fat[1] = htole32 (0x0fffffff);
+
+ for (i = 0; i < floppy->nr_dirs; ++i) {
+ write_fat_file (floppy->dirs[i].first_cluster,
+ floppy->dirs[i].nr_clusters, floppy);
+ }
+ for (i = 0; i < floppy->nr_files; ++i) {
+ write_fat_file (floppy->files[i].first_cluster,
+ floppy->files[i].nr_clusters, floppy);
+ }
+
+ return 0;
+}
+
+static void
+write_fat_file (uint32_t first_cluster, uint32_t nr_clusters,
+ struct virtual_floppy *floppy)
+{
+ uint32_t cl;
+
+ /* It's possible for files to have zero size. These don't occupy
+ * any space in the disk or FAT so we just skip them here.
+ */
+ if (nr_clusters == 0)
+ return;
+
+ for (cl = 0; cl < nr_clusters - 1; ++cl) {
+ assert (first_cluster + cl < floppy->fat_entries);
+ /* Directories and files are stored contiguously so the entry in
+ * the FAT always points to the next cluster (except for the
+ * last one, handled below).
+ */
+ floppy->fat[first_cluster + cl] = htole32 (first_cluster + cl + 1);
+ }
+
+ /* Last cluster / end of file marker. */
+ floppy->fat[first_cluster + cl] = htole32 (0x0fffffff);
+}
+
+/* Lay out the final virtual disk. */
+static int
+create_regions (struct virtual_floppy *floppy)
+{
+ size_t i;
+
+ /* MBR + free space to pad the partition to sector 2048. */
+ if (append_region_len (&floppy->regions, "MBR",
+ SECTOR_SIZE, 0, 2048*SECTOR_SIZE,
+ region_data, (void *) &floppy->mbr) == -1)
+ return -1;
+
+ /* Partition boot sector. */
+ if (append_region_len (&floppy->regions, "partition boot sector",
+ SECTOR_SIZE, 0, 0,
+ region_data, (void *) &floppy->bootsect) == -1)
+ return -1;
+
+ /* Filesystem information sector. */
+ if (append_region_len (&floppy->regions, "filesystem information sector",
+ SECTOR_SIZE, 0, 0,
+ region_data, (void *) &floppy->fsinfo) == -1)
+ return -1;
+
+ /* Free space (reserved sectors 2-5). */
+ if (append_region_len (&floppy->regions, "reserved sectors 2-5",
+ 4*SECTOR_SIZE, 0, 0,
+ region_zero) == -1)
+ return -1;
+
+ /* Backup boot sector. */
+ if (append_region_len (&floppy->regions, "backup boot sector",
+ SECTOR_SIZE, 0, 0,
+ region_data, (void *) &floppy->bootsect) == -1)
+ return -1;
+
+ /* Free space (reserved sectors 7-31). */
+ if (append_region_len (&floppy->regions, "reserved sectors 7-31",
+ 25*SECTOR_SIZE, 0, 0,
+ region_zero) == -1)
+ return -1;
+
+ /* First copy of FAT. */
+ if (append_region_len (&floppy->regions, "FAT #1",
+ floppy->fat_entries*4, 0, CLUSTER_SIZE,
+ region_data, (void *) floppy->fat) == -1)
+ return -1;
+
+ /* Check that fat2_start_sector and region calculation match. */
+ assert (virtual_size (&floppy->regions) ==
+ floppy->fat2_start_sector * SECTOR_SIZE);
+
+ /* Second copy of FAT. */
+ if (append_region_len (&floppy->regions, "FAT #2",
+ floppy->fat_entries*4, 0, CLUSTER_SIZE,
+ region_data, (void *) floppy->fat) == -1)
+ return -1;
+
+ /* Check that data_start_sector and region calculation match. */
+ assert (virtual_size (&floppy->regions) ==
+ floppy->data_start_sector * SECTOR_SIZE);
+
+ /* Now we're into the data region. We add all directory tables
+ * first.
+ */
+ for (i = 0; i < floppy->nr_dirs; ++i) {
+ /* Directories can never be completely empty because of the volume
+ * label (root) or "." and ".." entries (non-root).
+ */
+ assert (floppy->dirs[i].table_entries > 0);
+
+ if (append_region_len (&floppy->regions,
+ i == 0 ? "root directory" : floppy->dirs[i].name,
+ floppy->dirs[i].table_entries *
+ sizeof (struct dir_entry),
+ 0, CLUSTER_SIZE,
+ region_data, (void *) floppy->dirs[i].table) == -1)
+ return -1;
+ }
+
+ /* Add all files. */
+ for (i = 0; i < floppy->nr_files; ++i) {
+ /* It's possible for a file to have zero size, in which case it
+ * doesn't occupy a region or cluster.
+ */
+ if (floppy->files[i].statbuf.st_size == 0)
+ continue;
+
+ if (append_region_len (&floppy->regions, floppy->files[i].name,
+ floppy->files[i].statbuf.st_size,
+ 0, CLUSTER_SIZE,
+ region_file, i) == -1)
+ return -1;
+ }
+
+ nbdkit_debug ("floppy: %zu regions, "
+ "total disk size %" PRIi64,
+ nr_regions (&floppy->regions),
+ virtual_size (&floppy->regions));
+
+ return 0;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_VIRTUAL_FLOPPY_H
+#define NBDKIT_VIRTUAL_FLOPPY_H
+
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include "regions.h"
+
+struct partition_entry {
+ uint8_t bootable; /* 0x00 or 0x80 if bootable */
+ uint8_t chs[3]; /* always set to chs_too_large */
+ uint8_t part_type; /* partition type byte - 0x0C = FAT32 with LBA*/
+ uint8_t chs2[3]; /* always set to chs_too_large */
+ uint32_t start_sector; /* 2048 */
+ uint32_t num_sectors;
+} __attribute__((packed));
+
+struct bootsector {
+ uint8_t jmp_insn[3];
+ uint8_t oem_name[8]; /* 0x0003 */
+
+ /* BIOS Parameter Block, only required for first sector of FAT. */
+ uint16_t bytes_per_sector; /* 0x000B */
+ uint8_t sectors_per_cluster; /* 0x000D */
+ uint16_t reserved_sectors; /* 0x000E */
+ uint8_t nr_fats; /* 0x0010 */
+ uint16_t nr_root_dir_entries; /* 0x0011 - always 0 for FAT32 */
+ uint16_t old_nr_sectors; /* 0x0013 - always 0 */
+ uint8_t media_descriptor; /* 0x0015 - always 0xF8 */
+ uint16_t old_sectors_per_fat; /* 0x0016 */
+ uint16_t sectors_per_track; /* 0x0018 - always 0 for LBA */
+ uint16_t nr_heads; /* 0x001A - always 0 for LBA */
+ uint32_t nr_hidden_sectors; /* 0x001C */
+ uint32_t nr_sectors; /* 0x0020 */
+
+ /* FAT32 Extended BIOS Parameter Block. */
+ uint32_t sectors_per_fat; /* 0x0024 */
+ uint16_t mirroring; /* 0x0028 */
+ uint16_t fat_version; /* 0x002A */
+ uint32_t root_directory_cluster; /* 0x002C */
+ uint16_t fsinfo_sector; /* 0x0030 */
+ uint16_t backup_bootsect; /* 0x0032 */
+ uint8_t reserved[12]; /* 0x0034 */
+ uint8_t physical_drive_number; /* 0x0040 */
+ uint8_t unused; /* 0x0041 */
+ uint8_t extended_boot_signature; /* 0x0042 */
+ uint32_t volume_id; /* 0x0043 */
+ uint8_t volume_label[11]; /* 0x0047 */
+ uint8_t fstype[8]; /* 0x0052 - "FAT32 " */
+
+ uint8_t unused2[350];
+
+ /* Partition table. Not present in first sector of filesystem. */
+ uint32_t disk_signature; /* 0x01B8 */
+ uint16_t zero; /* 0x01BC - 0x00 0x00 */
+ struct partition_entry partition[4]; /* 0x01BE - partition table */
+
+ uint8_t boot_signature[2]; /* 0x01FE - 0x55 0xAA */
+} __attribute__((packed));
+
+struct fsinfo {
+ uint8_t signature[4]; /* 0x52 0x52 0x61 0x41 "RRaA" */
+ uint8_t reserved[480];
+ uint8_t signature2[4]; /* 0x72 0x72 0x41 0x61 "rrAa" */
+ uint32_t free_data_clusters;
+ uint32_t last_free_cluster;
+ uint8_t reserved2[12];
+ uint8_t signature3[4]; /* 0x00 0x00 0x55 0xAA */
+} __attribute__((packed));
+
+struct file {
+ char *name; /* Filename. */
+ char *host_path; /* Path of file on the host. */
+ struct stat statbuf; /* stat(2) information, including size. */
+ uint32_t first_cluster; /* First cluster containing this file. */
+ uint32_t nr_clusters; /* Number of clusters. */
+};
+
+/* On disk directory entry (non-LFN). */
+struct dir_entry {
+ uint8_t name[8 + 3];
+ uint8_t attributes; /* 0x0B */
+#define DIR_ENTRY_READONLY 0x01
+#define DIR_ENTRY_HIDDEN 0x02
+#define DIR_ENTRY_SYSTEM 0x04
+#define DIR_ENTRY_VOLUME_LABEL 0x08
+#define DIR_ENTRY_SUBDIRECTORY 0x10
+#define DIR_ENTRY_ARCHIVE 0x20
+ uint8_t unused; /* 0x0C */
+ uint8_t ctime_10ms; /* 0x0D - ctime seconds in 10ms units */
+ uint16_t ctime; /* 0x0E */
+ uint16_t cdate; /* 0x10 */
+ uint16_t adate; /* 0x12 */
+ uint16_t cluster_hi; /* 0x14 - first cluster (high word) */
+ uint16_t mtime; /* 0x16 */
+ uint16_t mdate; /* 0x18 */
+ uint16_t cluster_lo; /* 0x1A - first cluster (low word) */
+ uint32_t size; /* 0x1C - file size */
+} __attribute__((packed));
+
+/* On disk directory entry (LFN). */
+struct lfn_entry {
+ uint8_t seq; /* sequence number */
+ uint16_t name1[5]; /* first five UTF-16LE characters */
+ uint8_t attributes; /* 0x0B - always 0x0F */
+ uint8_t type; /* 0x0C - always 0x00 */
+ uint8_t checksum; /* 0x0D - DOS file name checksum */
+ uint16_t name2[6]; /* next six UTF-16LE characters */
+ uint16_t cluster_lo; /* 0x1A - always 0x0000 */
+ uint16_t name3[2]; /* last two UTF-16LE characters */
+} __attribute__((packed));
+
+struct dir {
+ size_t pdi; /* Link to parent directory (for root, 0). */
+ char *name; /* Directory name (for root, NULL). */
+ struct stat statbuf; /* stat(2) information (for root, zeroes). */
+ uint32_t first_cluster; /* First cluster containing this dir. */
+ uint32_t nr_clusters; /* Number of clusters. */
+
+ /* List of subdirectories. This is actually a list of indexes
+ * into the floppy->dirs array.
+ */
+ size_t *subdirs;
+ size_t nr_subdirs;
+
+ /* List of files in this directory. This is actually a list of
+ * indexes into the floppy->files array.
+ */
+ size_t *files;
+ size_t nr_files;
+
+ /* On disk directory table. */
+ struct dir_entry *table;
+ size_t table_entries;
+};
+
+struct virtual_floppy {
+ /* Virtual disk layout. */
+ struct regions regions;
+
+ /* Disk MBR. */
+ struct bootsector mbr;
+
+ /* Partition boot/first sector (also used for backup copy). */
+ struct bootsector bootsect;
+
+ /* Filesystem information sector. */
+ struct fsinfo fsinfo;
+
+ /* File Allocation Table (also used for second copy). */
+ uint32_t *fat;
+
+ /* All regular files found. */
+ struct file *files;
+ size_t nr_files;
+
+ /* Directories. dirs[0] == root directory. */
+ struct dir *dirs;
+ size_t nr_dirs;
+
+ uint64_t fat_entries; /* Size of FAT (number of 32 bit entries). */
+ uint64_t fat_clusters; /* Size of FAT (clusters on disk). */
+ uint64_t data_size; /* Size of data region (bytes). */
+ uint64_t data_clusters; /* Size of data region (clusters). */
+
+ /* The disk layout:
+ * sector 0: MBR
+ * sector 2048: partition first sector
+ * sector 2049: filesystem information sector
+ * sector 2050-2053: unused (reserved sectors 2-5)
+ * sector 2054: backup first sector
+ * sector 2055-2079: unused (reserved sectors 7-31)
+ * sector 2080: FAT
+ * fat2_start_sector FAT (second copy)
+ * data_start_sector data region (first cluster is always 2)
+ * data_last_sector last sector of data region
+ */
+ uint32_t fat2_start_sector;
+ uint32_t data_start_sector;
+ uint32_t data_last_sector;
+};
+
+#define SECTOR_SIZE 512
+
+/* Don't change SECTORS_PER_CLUSTER without also considering the disk
+ * layout. It shouldn't be necessary to change this since this
+ * supports the maximum possible disk size, and only wastes virtual
+ * space.
+ */
+#define SECTORS_PER_CLUSTER 32
+#define CLUSTER_SIZE (SECTOR_SIZE * SECTORS_PER_CLUSTER)
+
+extern void init_virtual_floppy (struct virtual_floppy *floppy)
+ __attribute__((__nonnull__ (1)));
+extern int create_virtual_floppy (const char *dir, const char *label,
+ struct virtual_floppy *floppy)
+ __attribute__((__nonnull__ (1, 2, 3)));
+extern void free_virtual_floppy (struct virtual_floppy *floppy)
+ __attribute__((__nonnull__ (1)));
+extern int create_directory (size_t di, const char *label,
+ struct virtual_floppy *floppy)
+ __attribute__((__nonnull__ (2, 3)));
+extern int update_directory_first_cluster (size_t di,
+ struct virtual_floppy *floppy)
+ __attribute__((__nonnull__ (2)));
+extern void pad_string (const char *label, size_t n, uint8_t *out)
+ __attribute__((__nonnull__ (1, 3)));
+
+#endif /* NBDKIT_VIRTUAL_FLOPPY_H */
--- /dev/null
+# nbdkit
+# Copyright (C) 2017-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-full-plugin.pod
+
+plugin_LTLIBRARIES = nbdkit-full-plugin.la
+
+nbdkit_full_plugin_la_SOURCES = \
+ full.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_full_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_full_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_full_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-full-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-full-plugin.1: nbdkit-full-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2017-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+ true; \
+ else \
+ false; \
+ fi; \
+}
+am__make_running_with_option = \
+ case $${target_option-} in \
+ ?) ;; \
+ *) echo "am__make_running_with_option: internal error: invalid" \
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+ exit 1;; \
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+ if $(am__is_gnu_make); then \
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+ else \
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+ case $$flg in \
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+ -*I?*) strip_trailopt 'I';; \
+ -*O) strip_trailopt 'O'; skip_next=yes;; \
+ -*O?*) strip_trailopt 'O';; \
+ -*l) strip_trailopt 'l'; skip_next=yes;; \
+ -*l?*) strip_trailopt 'l';; \
+ -[dEDm]) skip_next=yes;; \
+ -[JT]) skip_next=yes;; \
+ esac; \
+ case $$flg in \
+ *$$target_option*) has_opt=yes; break;; \
+ esac; \
+ done; \
+ test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+@HAVE_POD_TRUE@am__append_1 = $(man_MANS)
+subdir = plugins/full
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+
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+
+
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+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <errno.h>
+
+#define NBDKIT_API_VERSION 2
+
+#include <nbdkit-plugin.h>
+
+/* The size of disk in bytes (initialized by size=<SIZE> parameter). */
+static int64_t size = -1;
+
+static int
+full_config (const char *key, const char *value)
+{
+ int64_t r;
+
+ if (strcmp (key, "size") == 0) {
+ r = nbdkit_parse_size (value);
+ if (r == -1)
+ return -1;
+ size = r;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+full_config_complete (void)
+{
+ if (size == -1) {
+ nbdkit_error ("size parameter is required");
+ return -1;
+ }
+
+ return 0;
+}
+
+#define full_config_help \
+ "size=<SIZE> (required) Size of the backing disk"
+
+/* Create the per-connection handle. */
+static void *
+full_open (int readonly)
+{
+ return NBDKIT_HANDLE_NOT_NEEDED;
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* Get the disk size. */
+static int64_t
+full_get_size (void *handle)
+{
+ return size;
+}
+
+/* Read data. */
+static int
+full_pread (void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ memset (buf, 0, count);
+ return 0;
+}
+
+/* Write data. */
+static int
+full_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ errno = ENOSPC;
+ return -1;
+}
+
+/* Write zeroes. */
+static int
+full_zero (void *handle, uint32_t count, uint64_t offset, uint32_t flags)
+{
+ errno = ENOSPC;
+ return -1;
+}
+
+/* Trim. */
+static int
+full_trim (void *handle, uint32_t count, uint64_t offset, uint32_t flags)
+{
+ errno = ENOSPC;
+ return -1;
+}
+
+/* Extents. */
+static int
+full_extents (void *handle, uint32_t count, uint64_t offset, uint32_t flags,
+ struct nbdkit_extents *extents)
+{
+ return nbdkit_add_extent (extents, 0, size,
+ NBDKIT_EXTENT_HOLE | NBDKIT_EXTENT_ZERO);
+}
+
+/* Note that we don't need to handle flush: If there has been previous
+ * write then we have already returned an error. If there have been
+ * no previous writes then flush can be ignored.
+ */
+
+static struct nbdkit_plugin plugin = {
+ .name = "full",
+ .version = PACKAGE_VERSION,
+ .config = full_config,
+ .config_complete = full_config_complete,
+ .config_help = full_config_help,
+ .open = full_open,
+ .get_size = full_get_size,
+ .pread = full_pread,
+ .pwrite = full_pwrite,
+ .zero = full_zero,
+ .trim = full_trim,
+ .extents = full_extents,
+ /* In this plugin, errno is preserved properly along error return
+ * paths from failed system calls.
+ */
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+=head1 NAME
+
+nbdkit-full-plugin - nbdkit plugin which is always full
+
+=head1 SYNOPSIS
+
+ nbdkit full size=SIZE
+
+=head1 DESCRIPTION
+
+C<nbdkit-full-plugin> is a plugin for L<nbdkit(1)>. Reads from this
+virtual disk return zeroes. All writes and similar operations like
+zero and trim fail with C<ENOSPC> S<(No space left on device)> error.
+
+In other words this behaves like a sparse (thin-provisioned) virtual
+disk which has run out of space on the host.
+
+=head2 Equivalent nbdkit-error-filter command
+
+Although this is a standalone plugin, it is equivalent to using
+L<nbdkit-error-filter(1)>:
+
+ nbdkit --filter=error null size=SIZE \
+ error-pwrite=ENOSPC error-pwrite-rate=100% \
+ error-trim=ENOSPC error-trim-rate=100% \
+ error-zero=ENOSPC error-zero-rate=100%
+
+nbdkit-error-filter can be more flexible because you can place it on
+top of other plugins and you can control when to inject errors.
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<size=>SIZE
+
+Specify the virtual size of the disk image.
+
+This parameter is required.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<nbdkit-error-filter(1)>,
+L<nbdkit-null-plugin(1)>,
+L<nbdkit-pattern-plugin(1)>,
+L<nbdkit-random-plugin(1)>.
+L<nbdkit-zero-plugin(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2017-2018 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2013 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-guestfs-plugin.pod
+
+if HAVE_LIBGUESTFS
+
+plugin_LTLIBRARIES = nbdkit-guestfs-plugin.la
+
+nbdkit_guestfs_plugin_la_SOURCES = \
+ guestfs-plugin.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_guestfs_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_guestfs_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS) \
+ $(LIBGUESTFS_CFLAGS)
+nbdkit_guestfs_plugin_la_LIBADD = \
+ $(LIBGUESTFS_LIBS)
+nbdkit_guestfs_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-guestfs-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-guestfs-plugin.1: nbdkit-guestfs-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+
+endif
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2013 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+ true; \
+ else \
+ false; \
+ fi; \
+}
+am__make_running_with_option = \
+ case $${target_option-} in \
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+
+@HAVE_LIBGUESTFS_TRUE@@HAVE_POD_TRUE@nbdkit-guestfs-plugin.1: nbdkit-guestfs-plugin.pod
+@HAVE_LIBGUESTFS_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_LIBGUESTFS_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_LIBGUESTFS_TRUE@@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <stdarg.h>
+#include <string.h>
+#include <errno.h>
+
+#include <guestfs.h>
+
+#include <nbdkit-plugin.h>
+
+/* Configuration. */
+static const char *connect = NULL; /* libvirt URI */
+static const char *export = NULL; /* export device or file */
+static const char *format = NULL; /* format parameter */
+static int trace = 0, debug = 0;
+
+/* disk and domain options. (NB: list stored in reverse order) */
+struct drive {
+ struct drive *next;
+ enum { drv_disk, drv_domain } type;
+ const char *value;
+ const char *format;
+};
+struct drive *drives = NULL;
+
+/* mount options. (NB: list stored in reverse order) */
+struct mount {
+ struct mount *next;
+ enum { mount_inspect, mount_fs } type;
+ const char *dev;
+ const char *mp;
+};
+struct mount *mounts = NULL;
+
+static int
+plugin_guestfs_config (const char *key, const char *value)
+{
+ if (strcmp (key, "debug") == 0) {
+ if (sscanf (value, "%d", &debug) != 1) {
+ nbdkit_error ("could not parse 'debug' option, expecting an integer");
+ return -1;
+ }
+ }
+ else if (strcmp (key, "trace") == 0) {
+ if (sscanf (value, "%d", &trace) != 1) {
+ nbdkit_error ("could not parse 'trace' option, expecting an integer");
+ return -1;
+ }
+ }
+ else if (strcmp (key, "connect") == 0) {
+ connect = value;
+ }
+ else if (strcmp (key, "export") == 0) {
+ export = value;
+ }
+ else if (strcmp (key, "format") == 0) {
+ if (strcmp (value, "") != 0)
+ format = value;
+ else
+ format = NULL;
+ }
+ else if (strcmp (key, "disk") == 0) {
+ struct drive *d;
+
+ d = malloc (sizeof *d);
+ if (!d) {
+ nbdkit_error ("malloc: %m");
+ return -1;
+ }
+ d->type = drv_disk;
+ d->value = value;
+ d->format = format;
+ d->next = drives;
+ drives = d;
+ }
+ else if (strcmp (key, "domain") == 0) {
+ struct drive *d;
+
+ d = malloc (sizeof *d);
+ if (!d) {
+ nbdkit_error ("malloc: %m");
+ return -1;
+ }
+ d->type = drv_domain;
+ d->value = value;
+ d->next = drives;
+ drives = d;
+ }
+ else if (strcmp (key, "mount") == 0) {
+ struct mount *m;
+ char *p;
+
+ m = malloc (sizeof *m);
+ if (!m) {
+ nbdkit_error ("malloc: %m");
+ return -1;
+ }
+
+ if (strcmp (value, "inspect") == 0) {
+ m->type = mount_inspect;
+ m->dev = m->mp = NULL;
+ }
+ else if ((p = strchr (value, ':')) != NULL) {
+ *p = '\0';
+ m->type = mount_fs;
+ m->dev = value;
+ m->mp = p+1;
+ }
+ else {
+ m->type = mount_fs;
+ m->dev = value;
+ m->mp = "/";
+ }
+ m->next = mounts;
+ mounts = m;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+plugin_guestfs_config_complete (void)
+{
+ if (export == NULL) {
+ nbdkit_error ("the 'export' parameter is required");
+ return -1;
+ }
+
+ if (drives == NULL) {
+ nbdkit_error ("at least one 'disk' or 'domain' parameter is required");
+ return -1;
+ }
+
+ return 0;
+}
+
+#define plugin_guestfs_config_help \
+ "connect=<URI> (optional) libvirt connection URI\n" \
+ "domain=<DOMAIN> libvirt domain name\n" \
+ "disk=<DISK> disk name\n" \
+ "mount=inspect|MOUNT mount filesystems\n" \
+ "export=DEVICE|FILE (required) export device or file"
+
+/* Free up the structures used to store the command line arguments.
+ * Note the static strings don't need to be freed.
+ */
+static void
+plugin_guestfs_unload (void)
+{
+ struct drive *d, *d_next;
+ struct mount *m, *m_next;
+
+ for (d = drives; d != NULL; d = d_next) {
+ d_next = d->next;
+ free (d);
+ }
+
+ for (m = mounts; m != NULL; m = m_next) {
+ m_next = m->next;
+ free (m);
+ }
+}
+
+/* For libguestfs errors. */
+#define GERROR(g,fs,...) \
+ do { \
+ nbdkit_error (fs ": %s", ##__VA_ARGS__, \
+ guestfs_last_error ((g))); \
+ } while (0)
+
+/* The per-connection handle. */
+struct handle {
+ guestfs_h *g;
+ bool is_device;
+ uint64_t exportsize;
+};
+
+static int set_up_logging (guestfs_h *g);
+static int add_disks (guestfs_h *g, int readonly, struct drive *);
+static int mount_filesystems (guestfs_h *g, int readonly, struct mount *);
+
+/* Create the per-connection handle. */
+static void *
+plugin_guestfs_open (int readonly)
+{
+ struct handle *h;
+ int64_t r;
+
+ h = malloc (sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+
+ h->g = guestfs_create_flags (GUESTFS_CREATE_NO_ENVIRONMENT);
+ if (!h->g) {
+ nbdkit_error ("creating libguestfs handle: %m");
+ goto err1;
+ }
+
+ guestfs_set_error_handler (h->g, NULL, NULL);
+
+ if (trace)
+ guestfs_set_trace (h->g, 1);
+
+ if (debug)
+ guestfs_set_verbose (h->g, 1);
+
+ if (guestfs_parse_environment (h->g) == -1) {
+ GERROR (h->g, "guestfs_parse_environment");
+ goto err2;
+ }
+
+ if (set_up_logging (h->g) == -1)
+ goto err2;
+
+ if (add_disks (h->g, readonly, drives) == -1)
+ goto err2;
+
+ if (guestfs_launch (h->g) == -1) {
+ GERROR (h->g, "guestfs_launch");
+ goto err2;
+ }
+
+ if (mount_filesystems (h->g, readonly, mounts) == -1)
+ goto err2;
+
+ /* Exported thing. */
+ if (strncmp (export, "/dev/", 5) == 0) {
+ h->is_device = true;
+ r = guestfs_blockdev_getsize64 (h->g, export);
+ if (r == -1) {
+ GERROR (h->g, "%s: guestfs_blockdev_getsize64", export);
+ goto err2;
+ }
+ h->exportsize = (uint64_t) r;
+ }
+ else {
+ h->is_device = false;
+ r = guestfs_filesize (h->g, export);
+ if (r == -1) {
+ GERROR (h->g, "%s: guestfs_filesize", export);
+ goto err2;
+ }
+ h->exportsize = (uint64_t) r;
+ }
+
+ nbdkit_debug ("guestfs: export %s, size = %" PRIu64 " bytes",
+ export, h->exportsize);
+
+ return h;
+
+ err2:
+ guestfs_close (h->g);
+ err1:
+ free (h);
+ return NULL;
+}
+
+static void
+log_to_nbdkit (guestfs_h *g,
+ void *opaque,
+ uint64_t event,
+ int eh,
+ int flags,
+ const char *buf, size_t buf_len,
+ const uint64_t *array, size_t array_len)
+{
+ char *sbuf;
+
+ /* Note the buffer may not be \0 terminated. Hence this. */
+ sbuf = strndup (buf, buf_len);
+ if (sbuf) {
+ nbdkit_debug ("%s", sbuf);
+ free (sbuf);
+ }
+}
+
+static int
+set_up_logging (guestfs_h *g)
+{
+ int eh;
+ const uint64_t EVENTS =
+ GUESTFS_EVENT_APPLIANCE | GUESTFS_EVENT_LIBRARY | GUESTFS_EVENT_TRACE;
+
+ eh = guestfs_set_event_callback (g, log_to_nbdkit, EVENTS, 0, NULL);
+ if (eh == -1) {
+ GERROR (g, "guestfs_set_event_callback");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+add_disks (guestfs_h *g, int readonly, struct drive *drives)
+{
+ struct guestfs_add_domain_argv domain_optargs;
+ struct guestfs_add_drive_opts_argv drive_optargs;
+
+ if (drives == NULL)
+ return 0;
+
+ /* Because the 'drives' list is stored in reverse order, use some
+ * creative recursion to add the drives in the intended order.
+ */
+ if (add_disks (g, readonly, drives->next) == -1)
+ return -1;
+
+ switch (drives->type) {
+ case drv_domain:
+ domain_optargs.bitmask =
+ GUESTFS_ADD_DOMAIN_READONLY_BITMASK |
+ GUESTFS_ADD_DOMAIN_ALLOWUUID_BITMASK;
+ domain_optargs.readonly = readonly;
+ domain_optargs.allowuuid = 1;
+ if (connect) {
+ domain_optargs.bitmask |= GUESTFS_ADD_DOMAIN_LIBVIRTURI_BITMASK;
+ domain_optargs.libvirturi = connect;
+ }
+ if (guestfs_add_domain_argv (g, drives->value, &domain_optargs) == -1) {
+ GERROR (g, "domain %s", drives->value);
+ return -1;
+ }
+ break;
+
+ case drv_disk:
+ drive_optargs.bitmask = GUESTFS_ADD_DRIVE_OPTS_READONLY_BITMASK;
+ drive_optargs.readonly = readonly;
+ if (drives->format) {
+ drive_optargs.bitmask |= GUESTFS_ADD_DRIVE_OPTS_FORMAT_BITMASK;
+ drive_optargs.format = drives->format;
+ }
+ if (guestfs_add_drive_opts_argv (g, drives->value, &drive_optargs) == -1) {
+ GERROR (g, "disk %s", drives->value);
+ return -1;
+ }
+ break;
+
+ default:
+ abort ();
+ }
+
+ return 0;
+}
+
+static int
+inspect_and_mount (guestfs_h *g, const char *options)
+{
+ char **roots = NULL;
+ const char *root;
+ char **mountpoints = NULL;
+ size_t i, mounted;
+ int ret = -1;
+
+ roots = guestfs_inspect_os (g);
+ if (roots == NULL) {
+ GERROR (g, "mount=inspect: guestfs_inspect_os");
+ goto out;
+ }
+
+ if (roots[0] == NULL) {
+ nbdkit_error ("no operating system was found inside this disk image");
+ goto out;
+ }
+
+ if (roots[1] != NULL) {
+ nbdkit_error ("multiple operating system were found. "
+ "The plugin doesn't support that.");
+ goto out;
+ }
+ root = roots[0];
+
+ mountpoints = guestfs_inspect_get_mountpoints (g, root);
+ if (mountpoints == NULL) {
+ GERROR (g, "mount=inspect: guestfs_inspect_get_mountpoints");
+ goto out;
+ }
+
+ /* Ignore errors as long as at least one filesystem is mountable. */
+ mounted = 0;
+ for (i = 0; mountpoints[i] != NULL; i += 2) {
+ if (guestfs_mount_options (g, options,
+ mountpoints[i+1], mountpoints[i]) == 0)
+ mounted++;
+ }
+ if (mounted == 0) {
+ nbdkit_error ("mount=inspect: could not mount any filesystems");
+ goto out;
+ }
+
+ ret = 0;
+ out:
+ if (roots) {
+ for (i = 0; roots[i] != NULL; ++i)
+ free (roots[i]);
+ free (roots);
+ }
+ if (mountpoints) {
+ for (i = 0; mountpoints[i] != NULL; ++i)
+ free (mountpoints[i]);
+ free (mountpoints);
+ }
+
+ return ret;
+}
+
+static int
+mount_filesystems (guestfs_h *g, int readonly, struct mount *mounts)
+{
+ const char *options = readonly ? "ro" : "";
+
+ if (mounts == NULL)
+ return 0;
+
+ /* Because the 'mounts' list is stored in reverse order, use some
+ * creative recursion to add the drives in the intended order.
+ */
+ if (mount_filesystems (g, readonly, mounts->next) == -1)
+ return -1;
+
+ switch (mounts->type) {
+ case mount_fs:
+ if (guestfs_mount_options (g, options, mounts->dev, mounts->mp) == -1) {
+ GERROR (g, "mount [%s] %s:%s", options, mounts->dev, mounts->mp);
+ return -1;
+ }
+ break;
+
+ case mount_inspect:
+ /* Ask libguestfs to inspect for operating systems. */
+ if (inspect_and_mount (g, options) == -1)
+ return -1;
+ break;
+ }
+
+ return 0;
+}
+
+/* Free up the per-connection handle. */
+static void
+plugin_guestfs_close (void *handle)
+{
+ struct handle *h = handle;
+
+ if (guestfs_shutdown (h->g) == -1) {
+ GERROR (h->g, "shutdown failure: there may be unwritten data");
+ /* ... but we can't do anything about it, see note in nbdkit-plugin(3) */
+ }
+ guestfs_close (h->g);
+ free (h);
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS
+
+/* Get the file size. */
+static int64_t
+plugin_guestfs_get_size (void *handle)
+{
+ struct handle *h = handle;
+
+ return h->exportsize;
+}
+
+/* Read data. */
+static int
+plugin_guestfs_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ struct handle *h = handle;
+ char *(*pr) (guestfs_h *, const char *, int, int64_t, size_t *);
+ char *data;
+ size_t size;
+
+ if (h->is_device)
+ pr = guestfs_pread_device;
+ else
+ pr = guestfs_pread;
+
+ while (count > 0) {
+ data = pr (h->g, export, count, offset, &size);
+ if (!data) {
+ GERROR (h->g, "%s: pread", export);
+ errno = guestfs_last_errno (h->g) ? : EIO;
+ return -1;
+ }
+
+ memcpy (buf, data, size);
+ free (data);
+
+ buf += size;
+ offset += size;
+ count -= size;
+ }
+
+ return 0;
+}
+
+/* Write data. */
+static int
+plugin_guestfs_pwrite (void *handle, const void *buf,
+ uint32_t count, uint64_t offset)
+{
+ struct handle *h = handle;
+ int (*pw) (guestfs_h *, const char *, const char *, size_t, int64_t);
+ int r;
+
+ if (h->is_device)
+ pw = guestfs_pwrite_device;
+ else
+ pw = guestfs_pwrite;
+
+ while (count > 0) {
+ r = pw (h->g, export, buf, count, offset);
+ if (r == -1) {
+ GERROR (h->g, "%s: pwrite", export);
+ errno = guestfs_last_errno (h->g) ? : EIO;
+ return -1;
+ }
+
+ buf += r;
+ offset += r;
+ count -= r;
+ }
+
+ return 0;
+}
+
+/* Sync. */
+static int
+plugin_guestfs_flush (void *handle)
+{
+ struct handle *h = handle;
+
+ if (guestfs_sync (h->g) == -1) {
+ GERROR (h->g, "guestfs_sync");
+ errno = guestfs_last_errno (h->g) ? : EIO;
+ return -1;
+ }
+
+ return 0;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "guestfs",
+ .longname = "nbdkit guestfs plugin",
+ .version = PACKAGE_VERSION,
+ .config = plugin_guestfs_config,
+ .config_complete = plugin_guestfs_config_complete,
+ .config_help = plugin_guestfs_config_help,
+ .unload = plugin_guestfs_unload,
+ .open = plugin_guestfs_open,
+ .close = plugin_guestfs_close,
+ .get_size = plugin_guestfs_get_size,
+ .pread = plugin_guestfs_pread,
+ .pwrite = plugin_guestfs_pwrite,
+ .flush = plugin_guestfs_flush,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+=head1 NAME
+
+nbdkit-guestfs-plugin - nbdkit libguestfs plugin
+
+=head1 SYNOPSIS
+
+ nbdkit [-r] guestfs
+ [disk=DISK] [domain=DOMAIN] [format=FORMAT] [connect=URI]
+ [mount=inspect|MOUNT] [trace=1] [debug=1] export=DEVICE|FILE
+
+=head1 WARNING
+
+Using nbdkit-guestfs-plugin in read-write mode on live virtual
+machines can be dangerous, potentially causing disk corruption. Use
+the I<-r> (read-only) option to use this plugin safely if the disk
+image or virtual machine might be live.
+
+=head1 EXAMPLES
+
+Export the first partition I<inside> a disk image called C<disk.img>,
+and allow writes:
+
+ nbdkit guestfs disk=disk.img export=/dev/sda1
+
+Export a disk image which is located I<inside> a libvirt guest called
+C<Guest>, read-only (I<-r> option):
+
+ nbdkit -r guestfs domain=Guest mount=inspect export=/images/disk.img
+
+=head1 DESCRIPTION
+
+C<nbdkit-guestfs-plugin> is an L<nbdkit(1)> plugin that lets you
+access the contents of disk images over NBD. There are many weird and
+wonderful uses for this, and this man page only covers the simpler
+ones.
+
+The parameters control:
+
+=over 4
+
+=item *
+
+Which disk(s) are added to libguestfs. Specifically C<disk=DISK> and
+C<domain=DOMAIN> add a single disk or all the disks from a particular
+libvirt guest.
+
+=item *
+
+What, if any, filesystems inside the disk image / guest have to be
+mounted. Use C<mount=inspect> to do this automatically (like
+L<guestfish(1)> I<-i> option), else mount individual filesystems.
+
+=item *
+
+What device or file I<from inside the disk image or guest> you want to
+export over NBD. Use C<export=DEVICE|FILE> to specify the thing that
+you want to export.
+
+=item *
+
+Use the I<-r> option to export read-only. The default is read-write.
+
+=back
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<connect=>URI
+
+This optional parameter specifies the libvirt connection URI. This is
+only used with the C<domain> parameter.
+
+=item B<debug=1>
+
+Enable full debugging of libguestfs. Note you'll probably also have
+to use the L<nbdkit(1)> option I<-v> in order to see the messages.
+
+=item B<disk=>DISK
+
+Add the named disk image. You may specify this option multiple times.
+
+=item B<domain=>DOMAIN
+
+Add the disk(s) from the libvirt guest called C<DOMAIN>.
+
+=item B<export=>DEVICE|FILE
+
+Export C<DEVICE> or C<FILE> (from inside the disk image or guest) over
+NBD.
+
+Device names are the usual libguestfs names like F</dev/sda1> (meaning
+the first partition of the first disk), or F</dev/VG/LV> (a logical
+volume), or RAID arrays etc. The device name should not be confused
+with host devices.
+
+Filenames are similarly those located inside the guest or disk image,
+and always start with a C</> character (even for Windows guests).
+
+B<Exports are writable by default>. Use the I<-r> option to make them
+read-only. B<Exporting read-write a live disk image or virtual
+machine will probably cause disk corruption>.
+
+=item B<format=>FORMAT
+
+This can be used to specify the format of the disk. Use it B<before>
+the C<disk=DISK> argument. It works like the I<--format> option of
+L<guestfish(1)>.
+
+=item B<mount=inspect>
+
+Use guest inspection to mount disks. This is like C<guestfish -i>.
+
+=item B<mount=>DEV
+
+=item B<mount=>DEVB<:>MOUNTPOINT
+
+Mount C<DEV> from inside the guest on C<MOUNTPOINT> (defaults to
+F</>). This is like C<guestfish -m>.
+
+=item B<trace=1>
+
+Enable tracing of libguestfs calls. Note you'll probably also have to
+use the L<nbdkit(1)> option I<-v> in order to see the messages.
+
+=back
+
+=head1 WORKED EXAMPLES
+
+=head2 Exporting a partition or logical volume inside a disk image
+
+L<disk.img> is a host file that contains partitions or LVM logical
+volumes. Use the C<disk=disk.img> option to add the disk. Because
+you don't want to access filesystem contents, C<mount=...> is not
+needed.
+
+ nbdkit guestfs disk=disk.img export=/dev/sda1
+
+ nbdkit guestfs disk=disk.img export=/dev/VG/LV
+
+Use L<virt-filesystems(1)> to find out what devices, partitions, LVs,
+filesystems etc a disk image contains.
+
+=head2 Exporting a partition or logical volume inside guest
+
+L<Guest> is the name (in libvirt) of a guest. Since the guest might
+be live, we use the I<-r> option to open the guest read-only. Because
+you don't want to access filesystem contents, C<mount=...> is not
+needed.
+
+ nbdkit -r guestfs domain=Guest export=/dev/sda1
+
+ nbdkit -r guestfs domain=Guest export=/dev/VG/LV
+
+=head2 Exporting a file inside a disk image
+
+L<disk.img> is a partitioned disk image with one filesystem that
+contains a file that we want to export. Use the C<disk=disk.img>
+option to add the disk, and C<mount=/dev/sda1> to specify the
+filesystem in the disk image. Use C<export=/image> to specify the
+name of the file in that filesystem that we want to export.
+
+ nbdkit guestfs disk=disk.img mount=/dev/sda1 export=/image
+
+=head2 Exporting a file inside a virtual machine disk image
+
+L<windows.img> is the disk from a Windows virtual machine. Use the
+C<disk=windows.img> option to add the disk, and C<mount=inspect> to
+auto-mount the filesystem(s) in the disk image. Use
+C<export=/Users/rich/AppData/image> to specify the name of the file
+from the guest that we want to export.
+
+ nbdkit guestfs disk=windows.img mount=inspect \
+ export=/Users/rich/AppData/image
+
+=head1 DEBUGGING
+
+To debug this plugin, use the following options:
+
+ nbdkit -f -v guestfs debug=1 trace=1 [...]
+
+This enables libguestfs debugging and tracing (see L<guestfs-faq(1)>).
+It also ensures that the messages are displayed by nbdkit (because of
+I<-f> and I<-v>).
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<guestfish(1)>,
+L<guestfs(3)>,
+L<virt-filesystems(1)>,
+L<http://libguestfs.org>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2013 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-gzip-plugin.pod
+
+if HAVE_ZLIB
+
+plugin_LTLIBRARIES = nbdkit-gzip-plugin.la
+
+nbdkit_gzip_plugin_la_SOURCES = \
+ gzip.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_gzip_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_gzip_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS) \
+ $(ZLIB_CFLAGS)
+nbdkit_gzip_plugin_la_LIBADD = \
+ $(ZLIB_LIBS)
+nbdkit_gzip_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-gzip-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-gzip-plugin.1: nbdkit-gzip-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+
+endif
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2013 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@@HAVE_ZLIB_TRUE@nbdkit-gzip-plugin.1: nbdkit-gzip-plugin.pod
+@HAVE_POD_TRUE@@HAVE_ZLIB_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@@HAVE_ZLIB_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@@HAVE_ZLIB_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include <zlib.h>
+
+#include <nbdkit-plugin.h>
+
+static char *filename = NULL;
+
+static void
+gzip_unload (void)
+{
+ free (filename);
+}
+
+/* Called for each key=value passed on the command line. This plugin
+ * only accepts file=<filename>, which is required.
+ */
+static int
+gzip_config (const char *key, const char *value)
+{
+ if (strcmp (key, "file") == 0) {
+ /* See FILENAMES AND PATHS in nbdkit-plugin(3). */
+ filename = nbdkit_realpath (value);
+ if (!filename)
+ return -1;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Check the user did pass a file=<FILENAME> parameter. */
+static int
+gzip_config_complete (void)
+{
+ if (filename == NULL) {
+ nbdkit_error ("you must supply the file=<FILENAME> parameter "
+ "after the plugin name on the command line");
+ return -1;
+ }
+
+ return 0;
+}
+
+#define gzip_config_help \
+ "file=<FILENAME> (required) The filename to serve."
+
+/* Translate a gzerror to nbdkit_error. */
+#define nbdkit_gzerror(gz, fs, ...) \
+ do { \
+ int gzerrnum; \
+ const char *gzerr = gzerror ((gz), &gzerrnum); \
+ if (gzerrnum == Z_ERRNO) { \
+ nbdkit_error ((fs ": %m"), ## __VA_ARGS__); \
+ } else { \
+ nbdkit_error ((fs ": %s"), ## __VA_ARGS__, gzerr); \
+ } \
+ } while (0)
+
+/* The per-connection handle. */
+struct gzip_handle {
+ gzFile gz;
+ uint64_t exportsize;
+};
+
+/* Create the per-connection handle. */
+static void *
+gzip_open (int readonly)
+{
+ struct gzip_handle *h;
+ char buf[BUFSIZ];
+ int r;
+
+ h = malloc (sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+
+ h->gz = gzopen (filename, "r");
+ if (h->gz == NULL) {
+ nbdkit_error ("gzopen: %s: %m", filename);
+ goto err1;
+ }
+
+ gzbuffer (h->gz, 128 * 1024);
+
+ /* Work out the size of the uncompressed file - expensive! Note
+ * that seeking to the end of the file is not supported, so instead
+ * we have to read the file and discard it.
+ */
+ h->exportsize = 0;
+ do {
+ r = gzread (h->gz, buf, BUFSIZ);
+ h->exportsize += r;
+ } while (r > 0);
+ if (r == -1) {
+ nbdkit_gzerror (h->gz, "gzread: %s", filename);
+ goto err2;
+ }
+
+ nbdkit_debug ("gzip: %s: uncompressed size = %" PRIu64,
+ filename, h->exportsize);
+
+ if (gzrewind (h->gz) == -1) {
+ nbdkit_gzerror (h->gz, "gzrewind: unable to rewind file");
+ goto err2;
+ }
+
+ return h;
+
+ err2:
+ gzclose (h->gz);
+ err1:
+ free (h);
+ return NULL;
+}
+
+/* Free up the per-connection handle. */
+static void
+gzip_close (void *handle)
+{
+ struct gzip_handle *h = handle;
+
+ gzclose (h->gz);
+ free (h);
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS
+
+/* Get the file size. */
+static int64_t
+gzip_get_size (void *handle)
+{
+ struct gzip_handle *h = handle;
+
+ return h->exportsize;
+}
+
+/* Read data from the file. */
+static int
+gzip_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ struct gzip_handle *h = handle;
+
+ if (gzseek (h->gz, offset, SEEK_SET) == -1) {
+ nbdkit_gzerror (h->gz, "gzseek");
+ return -1;
+ }
+
+ while (count > 0) {
+ int r = gzread (h->gz, buf, count);
+ if (r == -1) {
+ nbdkit_gzerror (h->gz, "gzread");
+ return -1;
+ }
+ if (r == 0) {
+ nbdkit_error ("gzread: unexpected end of file (count=%" PRIu32 ")",
+ count);
+ return -1;
+ }
+ buf += r;
+ count -= r;
+ }
+
+ return 0;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "gzip",
+ .version = PACKAGE_VERSION,
+ .unload = gzip_unload,
+ .config = gzip_config,
+ .config_complete = gzip_config_complete,
+ .config_help = gzip_config_help,
+ .magic_config_key = "file",
+ .open = gzip_open,
+ .close = gzip_close,
+ .get_size = gzip_get_size,
+ .pread = gzip_pread,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+=head1 NAME
+
+nbdkit-gzip-plugin - nbdkit gzip plugin
+
+=head1 SYNOPSIS
+
+ nbdkit gzip [file=]FILENAME.gz
+
+=head1 DESCRIPTION
+
+C<nbdkit-gzip-plugin> is a file serving plugin for L<nbdkit(1)>.
+
+It serves the named C<FILENAME.gz> over NBD, uncompressing it on the
+fly. The plugin only supports read-only connections.
+
+B<Note> that gzip files are not very good for random access in large
+files because seeking to a position in the gzip file involves
+uncompressing lots of data. A more practical method to compress large
+disk images is to use the L<xz(1)> format and L<nbdkit-xz-plugin(1)>.
+
+=head1 PARAMETERS
+
+=over 4
+
+=item [B<file=>]FILENAME.gz
+
+Serve the compressed file named C<FILENAME.gz>.
+
+This parameter is required.
+
+C<file=> is a magic config key and may be omitted in most cases.
+See L<nbdkit(1)/Magic parameters>.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit-xz-plugin(1)>,
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-iso-plugin.pod
+
+if HAVE_ISO
+
+plugin_LTLIBRARIES = nbdkit-iso-plugin.la
+
+nbdkit_iso_plugin_la_SOURCES = \
+ iso.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_iso_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/common/utils \
+ -I$(top_srcdir)/include \
+ -I.
+nbdkit_iso_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_iso_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+nbdkit_iso_plugin_la_LIBADD = \
+ $(top_builddir)/common/utils/libutils.la
+
+if HAVE_POD
+
+man_MANS = nbdkit-iso-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-iso-plugin.1: nbdkit-iso-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+
+endif
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+ true; \
+ else \
+ false; \
+ fi; \
+}
+am__make_running_with_option = \
+ case $${target_option-} in \
+ ?) ;; \
+ *) echo "am__make_running_with_option: internal error: invalid" \
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+
+@HAVE_ISO_TRUE@@HAVE_POD_TRUE@nbdkit-iso-plugin.1: nbdkit-iso-plugin.pod
+@HAVE_ISO_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_ISO_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_ISO_TRUE@@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <nbdkit-plugin.h>
+
+#include "utils.h"
+
+/* List of directories parsed from the command line. */
+static char **dirs = NULL;
+static size_t nr_dirs = 0;
+
+/* genisoimage or mkisofs program, picked at compile time, but can be
+ * overridden at run time.
+ */
+static const char *isoprog = ISOPROG;
+
+/* Extra parameters for isoprog. */
+static const char *params = NULL;
+
+/* The temporary ISO. */
+static int fd = -1;
+
+/* Construct the temporary ISO. */
+static int
+make_iso (void)
+{
+ const char *tmpdir;
+ char *template;
+ char *command = NULL;
+ size_t command_len = 0;
+ FILE *fp;
+ size_t i;
+ int r;
+
+ /* Path for temporary file. */
+ tmpdir = getenv ("TMPDIR");
+ if (tmpdir == NULL)
+ tmpdir = LARGE_TMPDIR;
+ if (asprintf (&template, "%s/isoXXXXXX", tmpdir) == -1) {
+ nbdkit_error ("asprintf: %m");
+ return -1;
+ }
+
+ fd = mkstemp (template);
+ if (fd == -1) {
+ nbdkit_error ("mkstemp: %s: %m", template);
+ free (template);
+ return -1;
+ }
+ unlink (template);
+ free (template);
+
+ /* Construct the isoprog command. */
+ fp = open_memstream (&command, &command_len);
+ if (fp == NULL) {
+ nbdkit_error ("open_memstream: %m");
+ return -1;
+ }
+
+ shell_quote (isoprog, fp);
+ fprintf (fp, " -quiet");
+ if (params)
+ fprintf (fp, " %s", params);
+ for (i = 0; i < nr_dirs; ++i) {
+ fputc (' ', fp);
+ shell_quote (dirs[i], fp);
+ }
+ /* Redirect output to the temporary file. */
+ fprintf (fp, " >&%d", fd);
+
+ if (fclose (fp) == EOF) {
+ nbdkit_error ("memstream failed: %m");
+ return -1;
+ }
+
+ /* Run the command. */
+ nbdkit_debug ("%s", command);
+ r = system (command);
+ free (command);
+ if (exit_status_to_nbd_error (r, isoprog) == -1)
+ return -1;
+
+ return 0;
+}
+
+static void
+iso_unload (void)
+{
+ size_t i;
+
+ for (i = 0; i < nr_dirs; ++i)
+ free (dirs[i]);
+ free (dirs);
+
+ if (fd >= 0)
+ close (fd);
+}
+
+static int
+iso_config (const char *key, const char *value)
+{
+ char **new_dirs;
+ char *dir;
+
+ if (strcmp (key, "dir") == 0) {
+ dir = nbdkit_realpath (value);
+ if (dir == NULL)
+ return -1;
+
+ new_dirs = realloc (dirs, sizeof (char *) * (nr_dirs + 1));
+ if (new_dirs == NULL) {
+ nbdkit_error ("realloc: %m");
+ free (dir);
+ return -1;
+ }
+ dirs = new_dirs;
+ dirs[nr_dirs] = dir;
+ nr_dirs++;
+ }
+ else if (strcmp (key, "params") == 0) {
+ params = value;
+ }
+ else if (strcmp (key, "prog") == 0) {
+ isoprog = value;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+iso_config_complete (void)
+{
+ if (nr_dirs == 0) {
+ nbdkit_error ("you must supply the dir=<DIRECTORY> parameter "
+ "after the plugin name on the command line");
+ return -1;
+ }
+
+ if (make_iso () == -1)
+ return -1;
+
+ return 0;
+}
+
+#define iso_config_help \
+ "dir=<DIRECTORY> (required) The directory to serve.\n" \
+ "params='<PARAMS>' Extra parameters to pass.\n" \
+ "prog=<ISOPROG> The program used to make ISOs." \
+
+static void *
+iso_open (int readonly)
+{
+ return NBDKIT_HANDLE_NOT_NEEDED;
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* Get the file size. */
+static int64_t
+iso_get_size (void *handle)
+{
+ struct stat statbuf;
+
+ if (fstat (fd, &statbuf) == -1) {
+ nbdkit_error ("fstat: %m");
+ return -1;
+ }
+
+ return statbuf.st_size;
+}
+
+/* Serves the same data over multiple connections. */
+static int
+iso_can_multi_conn (void *handle)
+{
+ return 1;
+}
+
+/* Read data from the file. */
+static int
+iso_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ while (count > 0) {
+ ssize_t r = pread (fd, buf, count, offset);
+ if (r == -1) {
+ nbdkit_error ("pread: %m");
+ return -1;
+ }
+ if (r == 0) {
+ nbdkit_error ("pread: unexpected end of file");
+ return -1;
+ }
+ buf += r;
+ count -= r;
+ offset += r;
+ }
+
+ return 0;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "iso",
+ .longname = "nbdkit iso plugin",
+ .version = PACKAGE_VERSION,
+ .unload = iso_unload,
+ .config = iso_config,
+ .config_complete = iso_config_complete,
+ .config_help = iso_config_help,
+ .magic_config_key = "dir",
+ .open = iso_open,
+ .get_size = iso_get_size,
+ .can_multi_conn = iso_can_multi_conn,
+ .pread = iso_pread,
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+=head1 NAME
+
+nbdkit-iso-plugin - create virtual ISO (CD-ROM) from directory
+
+=head1 SYNOPSIS
+
+ nbdkit iso [dir=]DIRECTORY [[dir=]DIRECTORY ...]
+ [prog=mkisofs] [params='-JrT']
+
+=head1 DESCRIPTION
+
+C<nbdkit-iso-plugin> is a plugin for L<nbdkit(1)> which creates a
+virtual ISO (CD-ROM) image from a directory on the fly. The files
+from F<DIRECTORY> are added to a virtual ISO image which is served
+read-only over the NBD protocol.
+
+This plugin uses L<genisoimage(1)> or L<mkisofs(1)> to create the ISO
+content.
+
+To create a FAT-formatted virtual floppy disk instead of a CD, see
+L<nbdkit-floppy-plugin(1)>. To create a Linux compatible virtual
+disk, see L<nbdkit-linuxdisk-plugin(1)>.
+
+=head1 EXAMPLE
+
+Create a virtual ISO which supports Joliet, Rock Ridge and TRANS.TBL
+extensions, from files in a directory:
+
+ nbdkit iso /path/to/directory params='-JrT'
+
+C<params> adds I<-JrT> to the L<genisoimage(1)> or L<mkisofs(1)>
+command line, specifying the required extensions. Note that unless
+you use at least one of these extensions, filenames inside the ISO
+will be truncated because of limitations of the basic S<ISO 9660>
+format.
+
+=head1 PARAMETERS
+
+=over 4
+
+=item [B<dir=>]DIRECTORY
+
+Specify the directory containing files and subdirectories which will
+be added to the virtual ISO. Files inside this directory will appear
+in the root directory of the ISO.
+
+This parameter is required and may be specified one or more times. If
+multiple directories are specified, they are merged together.
+
+C<dir=> is a magic config key and may be omitted in most cases.
+See L<nbdkit(1)/Magic parameters>.
+
+=item B<params=>'parameters ...'
+
+Any other parameters may be passed through to L<genisoimage(1)> or
+L<mkisofs(1)> by specifying this option.
+
+For example:
+
+ params='-JrT -V "My Disk Image"'
+
+would specify Joliet (I<-J>), Rock Ridge (I<-r>) and TRANS.TBL (I<-T>)
+extensions, and specify the volume ID (I<-V>) as C<My Disk Image>.
+
+Take care when quoting this parameter; nbdkit passes the resulting
+string through another layer of shell interpretation without any
+sanity checks for unquoted shell metacharacters.
+
+=item B<prog=>mkisofs
+
+Choose which program to use to create the ISO content. The default is
+either L<genisoimage(1)> or L<mkisofs(1)> and is picked when nbdkit is
+compiled. You only need to use this parameter if you want to override
+it at run time.
+
+=back
+
+=head1 ENVIRONMENT VARIABLES
+
+=over 4
+
+=item C<PATH>
+
+L<genisoimage(1)>, L<mkisofs(1)> or whatever you supply to the
+optional C<prog> parameter must be available on the C<$PATH>.
+
+=item C<TMPDIR>
+
+A temporary copy of the ISO is created in C<TMPDIR>. If this
+environment variable is not set then F</var/tmp> is used instead.
+There must be enough free space here to store the ISO, which might be
+quite large.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<nbdkit-file-plugin(1)>,
+L<nbdkit-floppy-plugin(1)>,
+L<nbdkit-linuxdisk-plugin(1)>,
+L<genisoimage(1)>,
+L<mkisofs(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2013 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-libvirt-plugin.pod
+
+if HAVE_LIBVIRT
+
+plugin_LTLIBRARIES = nbdkit-libvirt-plugin.la
+
+nbdkit_libvirt_plugin_la_SOURCES = \
+ libvirt-plugin.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_libvirt_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_libvirt_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS) \
+ $(LIBVIRT_CFLAGS)
+nbdkit_libvirt_plugin_la_LIBADD = \
+ $(LIBVIRT_LIBS)
+nbdkit_libvirt_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-libvirt-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-libvirt-plugin.1: nbdkit-libvirt-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+
+endif
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+@HAVE_LIBVIRT_TRUE@@HAVE_POD_TRUE@nbdkit-libvirt-plugin.1: nbdkit-libvirt-plugin.pod
+@HAVE_LIBVIRT_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_LIBVIRT_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_LIBVIRT_TRUE@@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* libvirt-plugin:
+ *
+ * This uses the libvirt virDomainBlockPeek API to access the disks of
+ * libvirt guests, even remotely. This only works read-only (since
+ * libvirt does not have an equivalent write API).
+ *
+ * http://libvirt.org/html/libvirt-libvirt.html#virDomainBlockPeek
+ *
+ * Note to compile this, ./configure must be able to find libvirt.
+ * To unconditionally disable this plugin, use ./configure --without-libvirt
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <errno.h>
+
+#include <libvirt/libvirt.h>
+
+#include <nbdkit-plugin.h>
+
+/* Configuration. */
+static const char *connect = NULL;
+static const char *domain = NULL;
+static const char *disk = NULL;
+
+static int
+virt_config (const char *key, const char *value)
+{
+ if (strcmp (key, "connect") == 0) {
+ connect = value;
+ }
+ else if (strcmp (key, "domain") == 0) {
+ domain = value;
+ }
+ else if (strcmp (key, "disk") == 0) {
+ disk = value;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+virt_config_complete (void)
+{
+ if (domain == NULL) {
+ nbdkit_error ("the 'domain' parameter is required");
+ return -1;
+ }
+ if (disk == NULL) {
+ nbdkit_error ("the 'disk' parameter is required");
+ return -1;
+ }
+ return 0;
+}
+
+#define virt_config_help \
+ "connect=<URI> (optional) libvirt connection URI\n" \
+ "domain=<DOMAIN> (required) libvirt domain name\n" \
+ "disk=<DISK> (required) guest disk name"
+
+/* The per-connection handle. */
+struct virt_handle {
+ virConnectPtr conn;
+ virDomainPtr dom;
+ uint64_t exportsize;
+};
+
+/* Create the per-connection handle. */
+static void *
+virt_open (int readonly)
+{
+ struct virt_handle *h;
+ virDomainBlockInfo info;
+
+ h = malloc (sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+
+ /* Connect to libvirt. */
+ h->conn = virConnectOpen (connect);
+ if (!h->conn) {
+ nbdkit_error ("virConnectOpen failed, see earlier error messages");
+ goto err1;
+ }
+
+ /* Open the domain. */
+ h->dom = virDomainLookupByName (h->conn, domain);
+ if (!h->dom) {
+ nbdkit_error ("virDomainLookupByName: "
+ "cannot open domain '%s'", domain);
+ goto err2;
+ }
+
+ if (virDomainGetBlockInfo (h->dom, disk, &info, 0) == -1) {
+ nbdkit_error ("virDomainGetBlockInfo: "
+ "cannot read information about disk '%s' from domain '%s'",
+ disk, domain);
+ goto err3;
+ }
+ h->exportsize = info.physical;
+
+ return h;
+
+err3:
+ virDomainFree (h->dom);
+err2:
+ virConnectClose (h->conn);
+err1:
+ free (h);
+ return NULL;
+}
+
+/* Free up the per-connection handle. */
+static void
+virt_close (void *handle)
+{
+ struct virt_handle *h = handle;
+
+ virDomainFree (h->dom);
+ virConnectClose (h->conn);
+ free (h);
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS
+
+/* Get the file size. */
+static int64_t
+virt_get_size (void *handle)
+{
+ struct virt_handle *h = handle;
+
+ return h->exportsize;
+}
+
+/* Read data from the file. */
+static int
+virt_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ struct virt_handle *h = handle;
+ uint32_t c;
+
+ while (count > 0) {
+ /* Limit requests to 1MB, which was the limit in 0.9.13 (it has since
+ * been raised).
+ */
+ c = count;
+ if (c > 1024*1024)
+ c = 1024*1024;
+
+ if (virDomainBlockPeek (h->dom, disk, offset, c, buf, 0) == -1) {
+ nbdkit_error ("virDomainBlockPeek: cannot read block from disk '%s'",
+ disk);
+ errno = EIO;
+ return -1;
+ }
+
+ buf += c;
+ count -= c;
+ offset += c;
+ }
+
+ return 0;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "libvirt",
+ .longname = "nbdkit libvirt plugin",
+ .version = PACKAGE_VERSION,
+ .config = virt_config,
+ .config_complete = virt_config_complete,
+ .config_help = virt_config_help,
+ .open = virt_open,
+ .close = virt_close,
+ .get_size = virt_get_size,
+ .pread = virt_pread,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+=head1 NAME
+
+nbdkit-libvirt-plugin - nbdkit libvirt plugin using virDomainBlockPeek
+
+=head1 SYNOPSIS
+
+ nbdkit libvirt [connect=URI] domain=DOMAIN disk=DISK
+
+=head1 EXAMPLE
+
+ nbdkit libvirt domain=MyGuest disk=sda
+ guestfish --ro --format=raw -a nbd://localhost
+
+=head1 DESCRIPTION
+
+C<nbdkit-libvirt-plugin> is an L<nbdkit(1)> plugin that lets you
+access libvirt guest disks. Only read-only access is possible. It is
+implemented using the libvirt C<virDomainBlockPeek> API. It can also
+be used over remote libvirt connections.
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<connect=>URI
+
+This optional parameter specifies the libvirt connection URI.
+
+=item B<domain=>DOMAIN
+
+This required parameter specifies the libvirt domain name
+(guest name).
+
+=item B<disk=>DISK
+
+This required parameter specifies the guest's disk that we want to
+read.
+
+You can either give the path to the backing device (F</path/to/disk>)
+or the target name (eg. C<sda>).
+
+In either case use C<virsh dumpxml DOMAIN> to list possible disks.
+Look for S<C<E<lt>source dev=...E<gt>>> or
+S<C<E<lt>source file=...E<gt>>> or
+S<C<E<lt>target dev=...E<gt>>> in the XML.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<http://libvirt.org>,
+L<https://libvirt.org/html/libvirt-libvirt-domain.html#virDomainBlockPeek>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013-2018 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-linuxdisk-plugin.pod
+
+plugin_LTLIBRARIES = nbdkit-linuxdisk-plugin.la
+
+nbdkit_linuxdisk_plugin_la_SOURCES = \
+ filesystem.c \
+ linuxdisk.c \
+ partition-gpt.c \
+ virtual-disk.c \
+ virtual-disk.h \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_linuxdisk_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/common/gpt \
+ -I$(top_srcdir)/common/include \
+ -I$(top_srcdir)/common/regions \
+ -I$(top_srcdir)/common/utils \
+ -I$(top_srcdir)/include
+nbdkit_linuxdisk_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_linuxdisk_plugin_la_LIBADD = \
+ $(top_builddir)/common/gpt/libgpt.la \
+ $(top_builddir)/common/regions/libregions.la \
+ $(top_builddir)/common/utils/libutils.la
+nbdkit_linuxdisk_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-linuxdisk-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-linuxdisk-plugin.1: nbdkit-linuxdisk-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
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+# This Makefile.in is free software; the Free Software Foundation
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+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+
+GTAGS:
+ here=`$(am__cd) $(top_builddir) && pwd` \
+ && $(am__cd) $(top_srcdir) \
+ && gtags -i $(GTAGS_ARGS) "$$here"
+cscopelist: cscopelist-am
+
+cscopelist-am: $(am__tagged_files)
+ list='$(am__tagged_files)'; \
+ case "$(srcdir)" in \
+ [\\/]* | ?:[\\/]*) sdir="$(srcdir)" ;; \
+ *) sdir=$(subdir)/$(srcdir) ;; \
+ esac; \
+ for i in $$list; do \
+ if test -f "$$i"; then \
+ echo "$(subdir)/$$i"; \
+ else \
+ echo "$$sdir/$$i"; \
+ fi; \
+ done >> $(top_builddir)/cscope.files
+
+distclean-tags:
+ -rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(BUILT_SOURCES)
+ $(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
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+ list='$(DISTFILES)'; \
+ dist_files=`for file in $$list; do echo $$file; done | \
+ sed -e "s|^$$srcdirstrip/||;t" \
+ -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+ case $$dist_files in \
+ */*) $(MKDIR_P) `echo "$$dist_files" | \
+ sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+ sort -u` ;; \
+ esac; \
+ for file in $$dist_files; do \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ if test -d $$d/$$file; then \
+ dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test -d "$(distdir)/$$file"; then \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
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+ fi; \
+ cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+ else \
+ test -f "$(distdir)/$$file" \
+ || cp -p $$d/$$file "$(distdir)/$$file" \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
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+installdirs:
+ for dir in "$(DESTDIR)$(plugindir)" "$(DESTDIR)$(man1dir)"; do \
+ test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+ done
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+installcheck: installcheck-am
+install-strip:
+ if test -z '$(STRIP)'; then \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ install; \
+ else \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
+
+clean-generic:
+ -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pluginLTLIBRARIES \
+ mostlyclean-am
+
+distclean: distclean-am
+ -rm -f ./$(DEPDIR)/nbdkit_linuxdisk_plugin_la-filesystem.Plo
+ -rm -f ./$(DEPDIR)/nbdkit_linuxdisk_plugin_la-linuxdisk.Plo
+ -rm -f ./$(DEPDIR)/nbdkit_linuxdisk_plugin_la-partition-gpt.Plo
+ -rm -f ./$(DEPDIR)/nbdkit_linuxdisk_plugin_la-virtual-disk.Plo
+ -rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
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+
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+install-dvi-am:
+
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+
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+
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+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f ./$(DEPDIR)/nbdkit_linuxdisk_plugin_la-filesystem.Plo
+ -rm -f ./$(DEPDIR)/nbdkit_linuxdisk_plugin_la-linuxdisk.Plo
+ -rm -f ./$(DEPDIR)/nbdkit_linuxdisk_plugin_la-partition-gpt.Plo
+ -rm -f ./$(DEPDIR)/nbdkit_linuxdisk_plugin_la-virtual-disk.Plo
+ -rm -f Makefile
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+
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+
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+ cscopelist-am ctags ctags-am distclean distclean-compile \
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+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-linuxdisk-plugin.1: nbdkit-linuxdisk-plugin.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include <nbdkit-plugin.h>
+
+#include "minmax.h"
+#include "rounding.h"
+#include "utils.h"
+
+#include "virtual-disk.h"
+
+static int64_t estimate_size (void);
+static int mke2fs (const char *filename);
+
+int
+create_filesystem (struct virtual_disk *disk)
+{
+ const char *tmpdir;
+ char *filename = NULL;
+ int fd = -1;
+
+ /* Estimate the filesystem size and compute the final virtual size
+ * of the disk. We only need to do this if the user didn't specify
+ * the exact size on the command line.
+ */
+ if (size == 0 || size_add_estimate) {
+ int64_t estimate;
+
+ estimate = estimate_size ();
+ if (estimate == -1)
+ goto error;
+
+ nbdkit_debug ("filesystem size estimate: %" PRIi64, estimate);
+
+ /* Add 20% to the estimate to account for the overhead of
+ * filesystem metadata. Also set a minimum size. Note we are
+ * only wasting virtual space (since this will be stored sparsely
+ * under $TMPDIR) so we can be generous here.
+ */
+ estimate = estimate * 6 / 5;
+ estimate = MAX (estimate, 1024*1024);
+
+ /* For ext3 and ext4, add something for the journal. */
+ if (strncmp (type, "ext", 3) == 0 && type[3] > '2')
+ estimate += 32*1024*1024;
+
+ if (size_add_estimate)
+ size += estimate;
+ else
+ size = estimate;
+ }
+
+ /* Round the final size up to a whole number of sectors. */
+ size = ROUND_UP (size, SECTOR_SIZE);
+
+ nbdkit_debug ("filesystem virtual size: %" PRIi64, size);
+
+ /* Create the filesystem file. */
+ tmpdir = getenv ("TMPDIR");
+ if (tmpdir == NULL)
+ tmpdir = LARGE_TMPDIR;
+ if (asprintf (&filename, "%s/linuxdiskXXXXXX", tmpdir) == -1) {
+ nbdkit_error ("asprintf: %m");
+ goto error;
+ }
+
+ fd = mkstemp (filename);
+ if (fd == -1) {
+ nbdkit_error ("mkstemp: %s: %m", filename);
+ goto error;
+ }
+ if (ftruncate (fd, size) == -1) {
+ nbdkit_error ("ftruncate: %s: %m", filename);
+ goto error;
+ }
+
+ /* Create the filesystem. */
+ if (mke2fs (filename) == -1)
+ goto error;
+
+ unlink (filename);
+ free (filename);
+ disk->filesystem_size = size;
+ disk->fd = fd;
+ return 0;
+
+ error:
+ if (fd >= 0)
+ close (fd);
+ if (filename) {
+ unlink (filename);
+ free (filename);
+ }
+ return -1;
+}
+
+/* Use ‘du’ to estimate the size of the filesystem quickly. We use
+ * the -c option to allow the possibility of supporting multiple
+ * directories in future.
+ *
+ * Typical output from ‘du -cs dir1 dir2’ is:
+ *
+ * 12345 dir1
+ * 34567 dir2
+ * 46912 total
+ *
+ * We ignore everything except the first number on the last line.
+ */
+static int64_t
+estimate_size (void)
+{
+ char *command = NULL, *line = NULL;
+ size_t len = 0;
+ FILE *fp;
+ int64_t ret;
+ int r;
+
+ /* Create the du command. */
+ fp = open_memstream (&command, &len);
+ if (fp == NULL) {
+ nbdkit_error ("open_memstream: %m");
+ return -1;
+ }
+ fprintf (fp, "du -c -k -s ");
+ shell_quote (dir, fp);
+ if (fclose (fp) == EOF) {
+ nbdkit_error ("memstream failed: %m");
+ return -1;
+ }
+
+ /* Run the command. */
+ nbdkit_debug ("%s", command);
+ fp = popen (command, "r");
+ free (command);
+ if (fp == NULL) {
+ nbdkit_error ("du command failed: %m");
+ return -1;
+ }
+
+ /* Ignore everything up to the last line. */
+ len = 0;
+ while (getline (&line, &len, fp) != -1)
+ /* empty */;
+ if (ferror (fp)) {
+ nbdkit_error ("getline failed: %m");
+ free (line);
+ pclose (fp);
+ return -1;
+ }
+
+ r = pclose (fp);
+ if (r == -1) {
+ nbdkit_error ("pclose: %m");
+ free (line);
+ return -1;
+ }
+ if (exit_status_to_nbd_error (r, "pclose: du") == -1)
+ return -1;
+
+ /* Parse the last line. */
+ if (sscanf (line, "%" SCNi64, &ret) != 1 || ret < 0) {
+ nbdkit_error ("could not parse last line of output: %s", line);
+ free (line);
+ return -1;
+ }
+ free (line);
+
+ /* Result is in 1K blocks, convert it to bytes. */
+ ret *= 1024;
+ return ret;
+}
+
+static int
+mke2fs (const char *filename)
+{
+ char *command = NULL;
+ size_t len = 0;
+ FILE *fp;
+ int r;
+
+ /* Create the mke2fs command. */
+ fp = open_memstream (&command, &len);
+ if (fp == NULL) {
+ nbdkit_error ("open_memstream: %m");
+ return -1;
+ }
+
+ fprintf (fp, "mke2fs -q -F -t %s ", type);
+ if (label) {
+ fprintf (fp, "-L ");
+ shell_quote (label, fp);
+ fprintf (fp, " ");
+ }
+ fprintf (fp, "-d ");
+ shell_quote (dir, fp);
+ fprintf (fp, " ");
+ shell_quote (filename, fp);
+
+ if (fclose (fp) == EOF) {
+ nbdkit_error ("memstream failed: %m");
+ return -1;
+ }
+
+ /* Run the command. */
+ nbdkit_debug ("%s", command);
+ r = system (command);
+ free (command);
+ if (exit_status_to_nbd_error (r, "mke2fs") == -1)
+ return -1;
+
+ return 0;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <time.h>
+
+#define NBDKIT_API_VERSION 2
+
+#include <nbdkit-plugin.h>
+
+#include "random.h"
+#include "regions.h"
+
+#include "virtual-disk.h"
+
+/* Directory, label, type, size parameters. */
+char *dir;
+const char *label;
+const char *type = "ext2";
+int64_t size;
+bool size_add_estimate; /* if size=+SIZE was used */
+
+/* Virtual disk. */
+static struct virtual_disk disk;
+
+/* Used to create a random GUID for the partition. */
+struct random_state random_state;
+
+static void
+linuxdisk_load (void)
+{
+ init_virtual_disk (&disk);
+ xsrandom (time (NULL), &random_state);
+}
+
+static void
+linuxdisk_unload (void)
+{
+ free_virtual_disk (&disk);
+ free (dir);
+}
+
+static int
+linuxdisk_config (const char *key, const char *value)
+{
+ if (strcmp (key, "dir") == 0) {
+ if (dir != NULL) {
+ /* TODO: Support merging of multiple directories, like iso plugin. */
+ nbdkit_error ("dir=<DIRECTORY> must only be set once");
+ return -1;
+ }
+ dir = nbdkit_realpath (value);
+ if (dir == NULL)
+ return -1;
+ }
+ else if (strcmp (key, "label") == 0) {
+ label = value;
+ }
+ else if (strcmp (key, "type") == 0) {
+ if (strncmp (value, "ext", 3) != 0) {
+ nbdkit_error ("type=<TYPE> must be an filesystem type "
+ "supported by e2fsprogs");
+ return -1;
+ }
+ type = value;
+ }
+ else if (strcmp (key, "size") == 0) {
+ if (value[0] == '+') {
+ size_add_estimate = true;
+ value++;
+ }
+ else
+ size_add_estimate = false;
+ size = nbdkit_parse_size (value);
+ if (size == -1)
+ return -1;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+linuxdisk_config_complete (void)
+{
+ if (dir == NULL) {
+ nbdkit_error ("you must supply the dir=<DIRECTORY> parameter "
+ "after the plugin name on the command line");
+ return -1;
+ }
+
+ return create_virtual_disk (&disk);
+}
+
+#define linuxdisk_config_help \
+ "dir=<DIRECTORY> (required) The directory to serve.\n" \
+ "label=<LABEL> The filesystem label.\n" \
+ "type=ext2|ext3|ext4 The filesystem type.\n" \
+ "size=[+]<SIZE> The virtual filesystem size."
+
+static void *
+linuxdisk_open (int readonly)
+{
+ return NBDKIT_HANDLE_NOT_NEEDED;
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* Get the file size. */
+static int64_t
+linuxdisk_get_size (void *handle)
+{
+ return virtual_size (&disk.regions);
+}
+
+/* Serves the same data over multiple connections. */
+static int
+linuxdisk_can_multi_conn (void *handle)
+{
+ return 1;
+}
+
+/* Read data from the virtual disk. */
+static int
+linuxdisk_pread (void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ while (count > 0) {
+ const struct region *region = find_region (&disk.regions, offset);
+ size_t len;
+ ssize_t r;
+
+ /* Length to end of region. */
+ len = region->end - offset + 1;
+ if (len > count)
+ len = count;
+
+ switch (region->type) {
+ case region_file:
+ /* We don't use region->u.i since there is only one backing
+ * file, and we have that open already (in ‘disk.fd’).
+ */
+ r = pread (disk.fd, buf, len, offset - region->start);
+ if (r == -1) {
+ nbdkit_error ("pread: %m");
+ return -1;
+ }
+ if (r == 0) {
+ nbdkit_error ("pread: unexpected end of file");
+ return -1;
+ }
+ len = r;
+ break;
+
+ case region_data:
+ memcpy (buf, ®ion->u.data[offset - region->start], len);
+ break;
+
+ case region_zero:
+ memset (buf, 0, len);
+ break;
+ }
+
+ count -= len;
+ buf += len;
+ offset += len;
+ }
+
+ return 0;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "linuxdisk",
+ .longname = "nbdkit Linux virtual disk plugin",
+ .version = PACKAGE_VERSION,
+ .load = linuxdisk_load,
+ .unload = linuxdisk_unload,
+ .config = linuxdisk_config,
+ .config_complete = linuxdisk_config_complete,
+ .config_help = linuxdisk_config_help,
+ .magic_config_key = "dir",
+ .open = linuxdisk_open,
+ .get_size = linuxdisk_get_size,
+ .can_multi_conn = linuxdisk_can_multi_conn,
+ .pread = linuxdisk_pread,
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+=head1 NAME
+
+nbdkit-linuxdisk-plugin - create virtual Linux disk from directory
+
+=head1 SYNOPSIS
+
+ nbdkit linuxdisk [dir=]DIRECTORY
+ [label=LABEL] [type=ext2|ext3|ext4]
+ [size=[+]SIZE]
+
+=head1 DESCRIPTION
+
+C<nbdkit-linuxdisk-plugin> is a plugin for L<nbdkit(1)> which creates
+an ext2-, ext3- or ext4-formatted disk image from a directory on the
+fly. The files in the specified directory (and subdirectories) appear
+in the virtual disk, which is served read-only over the NBD protocol.
+
+The virtual disk is partitioned with a single GPT partition containing
+the filesystem.
+
+The virtual disk can be used as a Linux root (or other) filesystem.
+Most features of Linux filesystems are supported, such as hard links,
+symbolic links, block special devices etc.
+
+To create a FAT-formatted virtual floppy disk, see
+L<nbdkit-floppy-plugin(1)>. To create a CD/ISO, see
+L<nbdkit-iso-plugin(1)>.
+
+=head1 EXAMPLES
+
+=over 4
+
+=item nbdkit linuxdisk /path/to/directory label=ROOTFS
+
+Create a virtual disk, giving it a filesystem label. Note that
+clients will not be able to modify the filesystem, so it is safe to
+share it with multiple clients.
+
+=item nbdkit --filter=cow linuxdisk /path/to/directory
+
+Add a writable overlay (see L<nbdkit-cow-filter(1)>, allowing the disk
+to be written by the client. B<Multiple clients must not be allowed
+to connect at the same time> (even if they all mount it read-only) as
+this will cause disk corruption.
+
+=item nbdkit --filter=cow linuxdisk /path/to/directory size=+1G
+
+The same but specifying that at least 1G of free space should be
+available in the filesystem (not including the space taken by the
+initial filesystem).
+
+=item nbdkit --filter=partition linuxdisk /path/to/directory partition=1
+
+Instead of serving a partitioned disk image, serve just the "naked"
+filesystem (ie. the first partition, see
+L<nbdkit-partition-filter(1)>).
+
+=item nbdkit -U - linuxdisk /path/to/directory
+--run 'qemu-img convert $nbd ext2fs.img'
+
+This serves nothing. Instead it turns a directory into a disk image,
+writing it to F<ext2fs.img> (see L<nbdkit-captive(1)>). The resulting
+image is a partitioned disk.
+
+=item Create a minimal virtual appliance
+
+This creates and boots a minimal L<busybox(1)>-based virtual
+appliance. This assumes that your kernel (F</boot/vmlinuz>) contains
+the ext2 or ext4 driver compiled in, but most Linux distro kernels
+have that.
+
+ mkdir -p root/{bin,dev,proc,sbin,sys,usr/bin,usr/sbin}
+ sudo mknod root/dev/console c 5 1
+ cp /sbin/busybox root/sbin/
+ ln root/sbin/busybox root/sbin/init
+ ln root/sbin/busybox root/bin/ls
+ ln root/sbin/busybox root/bin/sh
+ nbdkit -U - linuxdisk root --run '
+ qemu-kvm -display none -kernel /boot/vmlinuz -drive file=nbd:unix:$unixsocket,snapshot=on -append "console=ttyS0 root=/dev/sda1 rw" -serial stdio
+ '
+
+You can drop any extra files you need into the F<root/> directory and
+they will be copied into the appliance before boot. After booting
+type these commands to complete the environmental setup:
+
+ /sbin/busybox --install
+ mount -t proc proc /proc
+ mount -t sysfs sys /sys
+
+=back
+
+=head1 PARAMETERS
+
+=over 4
+
+=item [B<dir=>]DIRECTORY
+
+Specify the directory containing files and subdirectories which will
+be added to the virtual disk. Files inside this directory will appear
+in the root directory of the virtual disk.
+
+This parameter is required.
+
+C<dir=> is a magic config key and may be omitted in most cases.
+See L<nbdkit(1)/Magic parameters>.
+
+=item B<label=>LABEL
+
+The optional label for the filesystem.
+
+=item B<size=>SIZE
+
+=item B<size=+>SIZE
+
+The total (virtual) size of the filesystem.
+
+If the C<size> parameter is omitted the plugin will try to size the
+filesystem with just enough space to contain the files and directories
+that are initially loaded, and there will not be much extra space.
+
+Using C<size=SIZE> specifies the required virtual size of the whole
+filesystem (including initial files and extra space). If this is set
+too small for the initial filesystem then the plugin will fail to
+start.
+
+Using C<size=+SIZE> specifies the minimum free space required after
+the initial filesystem has been loaded. (The actual free space might
+be slightly larger).
+
+=item B<type=ext2>
+
+=item B<type=ext3>
+
+=item B<type=ext4>
+
+Select the filesystem type. The default is C<ext2>.
+
+=back
+
+=head1 NOTES
+
+=head2 Users and groups
+
+The original file UIDs and GIDs are recreated as far as possible.
+Note that UIDs/GIDs will likely map to different users and groups when
+read by a virtual machine or other NBD client machine.
+
+=head1 ENVIRONMENT VARIABLES
+
+=over 4
+
+=item C<TMPDIR>
+
+The filesystem image is stored in a temporary file located in
+F</var/tmp> by default. You can override this location by setting the
+C<TMPDIR> environment variable before starting nbdkit.
+
+=back
+
+=head1 SEE ALSO
+
+L<mke2fs(8)>,
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<nbdkit-captive(1)>,
+L<nbdkit-cow-filter(1)>,
+L<nbdkit-file-plugin(1)>,
+L<nbdkit-floppy-plugin(1)>,
+L<nbdkit-iso-plugin(1)>,
+L<nbdkit-partition-filter(1)>,
+L<nbdkit-partitioning-plugin(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2019 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <nbdkit-plugin.h>
+
+#include "byte-swapping.h"
+#include "efi-crc32.h"
+#include "gpt.h"
+#include "isaligned.h"
+#include "rounding.h"
+#include "regions.h"
+
+#include "virtual-disk.h"
+
+#define PARTITION_TYPE_GUID "0FC63DAF-8483-4772-8E79-3D69D8477DE4"
+
+static void create_gpt_protective_mbr (struct virtual_disk *disk,
+ unsigned char *out);
+static void create_gpt_partition_header (struct virtual_disk *disk,
+ const void *pt, bool is_primary,
+ unsigned char *out);
+static void create_gpt_partition_table (struct virtual_disk *disk,
+ unsigned char *out);
+
+/* Initialize the partition table structures. */
+int
+create_partition_table (struct virtual_disk *disk)
+{
+ create_gpt_protective_mbr (disk, disk->protective_mbr);
+
+ create_gpt_partition_table (disk, disk->pt);
+
+ create_gpt_partition_header (disk, disk->pt, true, disk->primary_header);
+ create_gpt_partition_header (disk, disk->pt, false, disk->secondary_header);
+
+ return 0;
+}
+
+static void
+chs_too_large (unsigned char *out)
+{
+ const int c = 1023, h = 254, s = 63;
+
+ out[0] = h;
+ out[1] = (c & 0x300) >> 2 | s;
+ out[2] = c & 0xff;
+}
+
+static void
+create_mbr_partition_table_entry (const struct region *region,
+ bool bootable, int partition_id,
+ unsigned char *out)
+{
+ uint64_t start_sector, nr_sectors;
+ uint32_t u32;
+
+ assert (IS_ALIGNED (region->start, SECTOR_SIZE));
+
+ start_sector = region->start / SECTOR_SIZE;
+ nr_sectors = DIV_ROUND_UP (region->len, SECTOR_SIZE);
+
+ assert (start_sector <= UINT32_MAX);
+ assert (nr_sectors <= UINT32_MAX);
+
+ out[0] = bootable ? 0x80 : 0;
+ chs_too_large (&out[1]);
+ out[4] = partition_id;
+ chs_too_large (&out[5]);
+ u32 = htole32 (start_sector);
+ memcpy (&out[8], &u32, 4);
+ u32 = htole32 (nr_sectors);
+ memcpy (&out[12], &u32, 4);
+}
+
+static void
+create_gpt_protective_mbr (struct virtual_disk *disk, unsigned char *out)
+{
+ struct region region;
+ uint64_t end;
+
+ /* Protective MBR creates an MBR partition with partition ID 0xee
+ * which covers the whole of the disk, or as much of the disk as
+ * expressible with MBR.
+ */
+ region.start = 512;
+ end = virtual_size (&disk->regions) - 1;
+ if (end > UINT32_MAX * SECTOR_SIZE)
+ end = UINT32_MAX * SECTOR_SIZE;
+ region.end = end;
+ region.len = region.end - region.start + 1;
+
+ create_mbr_partition_table_entry (®ion, false, 0xee, &out[0x1be]);
+
+ /* Boot sector signature. */
+ out[0x1fe] = 0x55;
+ out[0x1ff] = 0xaa;
+}
+
+static void
+create_gpt_partition_header (struct virtual_disk *disk,
+ const void *pt, bool is_primary,
+ unsigned char *out)
+{
+ uint64_t nr_lbas;
+ struct gpt_header *header = (struct gpt_header *) out;
+
+ nr_lbas = virtual_size (&disk->regions) / SECTOR_SIZE;
+
+ memset (header, 0, sizeof *header);
+ memcpy (header->signature, GPT_SIGNATURE, sizeof (header->signature));
+ memcpy (header->revision, GPT_REVISION, sizeof (header->revision));
+ header->header_size = htole32 (sizeof *header);
+ if (is_primary) {
+ header->current_lba = htole64 (1);
+ header->backup_lba = htole64 (nr_lbas - 1);
+ }
+ else {
+ header->current_lba = htole64 (nr_lbas - 1);
+ header->backup_lba = htole64 (1);
+ }
+ header->first_usable_lba = htole64 (34);
+ header->last_usable_lba = htole64 (nr_lbas - 34);
+ if (is_primary)
+ header->partition_entries_lba = htole64 (2);
+ else
+ header->partition_entries_lba = htole64 (nr_lbas - 33);
+ header->nr_partition_entries = htole32 (GPT_MIN_PARTITIONS);
+ header->size_partition_entry = htole32 (GPT_PT_ENTRY_SIZE);
+ header->crc_partitions =
+ htole32 (efi_crc32 (pt, GPT_PT_ENTRY_SIZE * GPT_MIN_PARTITIONS));
+
+ /* Must be computed last. */
+ header->crc = htole32 (efi_crc32 (header, sizeof *header));
+}
+
+static void
+create_gpt_partition_table_entry (const struct region *region,
+ bool bootable,
+ char partition_type_guid[16],
+ char guid[16],
+ unsigned char *out)
+{
+ struct gpt_entry *entry = (struct gpt_entry *) out;
+
+ assert (sizeof (struct gpt_entry) == GPT_PT_ENTRY_SIZE);
+
+ memcpy (entry->partition_type_guid, partition_type_guid, 16);
+ memcpy (entry->unique_guid, guid, 16);
+
+ entry->first_lba = htole64 (region->start / SECTOR_SIZE);
+ entry->last_lba = htole64 (region->end / SECTOR_SIZE);
+ entry->attributes = htole64 (bootable ? 4 : 0);
+}
+
+static void
+create_gpt_partition_table (struct virtual_disk *disk, unsigned char *out)
+{
+ size_t j;
+
+ for (j = 0; j < nr_regions (&disk->regions); ++j) {
+ const struct region *region = get_region (&disk->regions, j);
+
+ /* Find the (only) partition region, which has type region_file. */
+ if (region->type == region_file) {
+ create_gpt_partition_table_entry (region, true,
+ PARTITION_TYPE_GUID,
+ disk->guid,
+ out);
+ out += GPT_PT_ENTRY_SIZE;
+ }
+ }
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <nbdkit-plugin.h>
+
+#include "random.h"
+#include "regions.h"
+
+#include "virtual-disk.h"
+
+static int create_regions (struct virtual_disk *disk);
+
+void
+init_virtual_disk (struct virtual_disk *disk)
+{
+ memset (disk, 0, sizeof *disk);
+ disk->fd = -1;
+
+ init_regions (&disk->regions);
+}
+
+int
+create_virtual_disk (struct virtual_disk *disk)
+{
+ size_t i;
+
+ /* Allocate the partition table structures. We can't fill them in
+ * until we have created the disk layout.
+ */
+ disk->protective_mbr = calloc (1, SECTOR_SIZE);
+ disk->primary_header = calloc (1, SECTOR_SIZE);
+ disk->pt = calloc (1, 32*SECTOR_SIZE);
+ disk->secondary_header = calloc (1, SECTOR_SIZE);
+ if (disk->protective_mbr == NULL ||
+ disk->primary_header == NULL ||
+ disk->pt == NULL ||
+ disk->secondary_header == NULL) {
+ nbdkit_error ("calloc: %m");
+ return -1;
+ }
+
+ /* Create the filesystem. This fills in disk->filesystem_size and
+ * disk->id.
+ */
+ if (create_filesystem (disk) == -1)
+ return -1;
+
+ /* Create a random GUID used as "Unique partition GUID". However
+ * this doesn't follow GUID conventions so in theory could make an
+ * invalid value.
+ */
+ for (i = 0; i < 16; ++i)
+ disk->guid[i] = xrandom (&random_state) & 0xff;
+
+ /* Create the virtual disk regions. */
+ if (create_regions (disk) == -1)
+ return -1;
+
+ /* Initialize partition table structures. This depends on
+ * disk->regions so must be done last.
+ */
+ if (create_partition_table (disk) == -1)
+ return -1;
+
+ return 0;
+}
+
+void
+free_virtual_disk (struct virtual_disk *disk)
+{
+ free_regions (&disk->regions);
+ free (disk->protective_mbr);
+ free (disk->primary_header);
+ free (disk->pt);
+ free (disk->secondary_header);
+ if (disk->fd >= 0)
+ close (disk->fd);
+}
+
+/* Lay out the final disk. */
+static int
+create_regions (struct virtual_disk *disk)
+{
+ /* Protective MBR. */
+ if (append_region_len (&disk->regions, "Protective MBR",
+ SECTOR_SIZE, 0, 0,
+ region_data, (void *) disk->protective_mbr) == -1)
+ return -1;
+
+ /* GPT primary partition table header (LBA 1). */
+ if (append_region_len (&disk->regions, "GPT primary header",
+ SECTOR_SIZE, 0, 0,
+ region_data, (void *) disk->primary_header) == -1)
+ return -1;
+
+ /* GPT primary PT (LBA 2..33). */
+ if (append_region_len (&disk->regions, "GPT primary PT",
+ 32*SECTOR_SIZE, 0, 0,
+ region_data, (void *) disk->pt) == -1)
+ return -1;
+
+ /* Partition containing the filesystem. Align it to 2048 sectors. */
+ if (append_region_len (&disk->regions, "Filesystem",
+ disk->filesystem_size, 2048*SECTOR_SIZE, 0,
+ region_file, 0 /* unused */) == -1)
+ return -1;
+
+ /* GPT secondary PT (LBA -33..-2). */
+ if (append_region_len (&disk->regions, "GPT secondary PT",
+ 32*SECTOR_SIZE, SECTOR_SIZE, 0,
+ region_data, (void *) disk->pt) == -1)
+ return -1;
+
+ /* GPT secondary PT header (LBA -1). */
+ if (append_region_len (&disk->regions, "GPT secondary header",
+ SECTOR_SIZE, 0, 0,
+ region_data, (void *) disk->secondary_header) == -1)
+ return -1;
+
+ return 0;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_VIRTUAL_DISK_H
+#define NBDKIT_VIRTUAL_DISK_H
+
+#include <stdbool.h>
+#include <stdint.h>
+
+#include "regions.h"
+
+extern char *dir;
+extern const char *label;
+extern const char *type;
+extern int64_t size;
+extern bool size_add_estimate;
+
+extern struct random_state random_state;
+
+#define SECTOR_SIZE 512
+
+struct virtual_disk {
+ /* Virtual disk layout. */
+ struct regions regions;
+
+ /* Disk protective MBR. */
+ uint8_t *protective_mbr;
+
+ /* GPT primary partition table header. */
+ uint8_t *primary_header;
+
+ /* GPT primary and secondary (backup) PTs. These are the same. */
+ uint8_t *pt;
+
+ /* GPT secondary (backup) PT header. */
+ uint8_t *secondary_header;
+
+ /* Size of the filesystem in bytes. */
+ uint64_t filesystem_size;
+
+ /* Unique partition GUID. */
+ char guid[16];
+
+ /* File descriptor of the temporary file containing the filesystem. */
+ int fd;
+};
+
+/* virtual-disk.c */
+extern void init_virtual_disk (struct virtual_disk *disk)
+ __attribute__((__nonnull__ (1)));
+extern int create_virtual_disk (struct virtual_disk *disk)
+ __attribute__((__nonnull__ (1)));
+extern void free_virtual_disk (struct virtual_disk *disk)
+ __attribute__((__nonnull__ (1)));
+
+/* partition-gpt.c */
+extern int create_partition_table (struct virtual_disk *disk);
+
+/* filesystem.c */
+extern int create_filesystem (struct virtual_disk *disk);
+
+#endif /* NBDKIT_VIRTUAL_DISK_H */
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = \
+ nbdkit-lua-plugin.pod \
+ example.lua
+
+if HAVE_LUA
+
+plugin_LTLIBRARIES = nbdkit-lua-plugin.la
+
+nbdkit_lua_plugin_la_SOURCES = \
+ lua.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_lua_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_lua_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS) \
+ $(LUA_CFLAGS)
+nbdkit_lua_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms \
+ $(LUA_LIBS)
+
+if HAVE_POD
+
+man_MANS = nbdkit-lua-plugin.3
+CLEANFILES += $(man_MANS)
+
+nbdkit-lua-plugin.3: nbdkit-lua-plugin.pod
+ $(PODWRAPPER) --section=3 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+
+endif
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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+
+
+@HAVE_LUA_TRUE@@HAVE_POD_TRUE@nbdkit-lua-plugin.3: nbdkit-lua-plugin.pod
+@HAVE_LUA_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=3 --man $@ \
+@HAVE_LUA_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_LUA_TRUE@@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+-- Example Lua plugin.
+--
+-- This example can be freely used for any purpose.
+
+-- Run it from the build directory like this:
+--
+-- ./nbdkit -f -v lua ./plugins/lua/example.lua file=disk.img
+--
+-- Or run it after installing nbdkit like this:
+--
+-- nbdkit -f -v lua ./plugins/lua/example.lua file=disk.img
+--
+-- The -f -v arguments are optional. They cause the server to stay in
+-- the foreground and print debugging, which is useful when testing.
+--
+-- You can connect to the server using guestfish or qemu, eg:
+--
+-- guestfish --format=raw -a nbd://localhost
+-- ><fs> run
+-- ><fs> part-disk /dev/sda mbr
+-- ><fs> mkfs ext2 /dev/sda1
+-- ><fs> list-filesystems
+-- ><fs> mount /dev/sda1 /
+-- ><fs> [etc]
+
+-- This is called from: nbdkit lua example.lua --dump-plugin
+function dump_plugin ()
+ print ("example_lua=1")
+end
+
+-- We expect a file=... parameter pointing to the file to serve.
+function config (key, value)
+ if key == "file" then
+ file = value
+ else
+ error ("unknown parameter " .. key .. "=" .. value)
+ end
+end
+
+-- Check the file parameter was passed.
+function config_complete ()
+ if not file then
+ error ("file parameter missing")
+ end
+end
+
+-- Open a new client connection.
+function open (readonly)
+ -- Open the file.
+ local flags
+ if readonly then
+ flags="rb"
+ else
+ flags="r+b"
+ end
+ local fh = assert (io.open (file, flags))
+
+ -- We can return any Lua object as the handle. In this
+ -- plugin it's convenient to return the file handle.
+ return fh
+end
+
+-- Close a client connection.
+function close (fh)
+ assert (fh:close())
+end
+
+function get_size (fh)
+ local size = assert (fh:seek ("end"))
+ return size
+end
+
+function pread (fh, count, offset)
+ assert (fh:seek ("set", offset))
+ local data = assert (fh:read (count))
+ return data
+end
+
+function pwrite (fh, buf, offset)
+ assert (fh:seek ("set", offset))
+ assert (fh:write (buf))
+end
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <assert.h>
+
+#include <lua.h>
+#include <lauxlib.h>
+#include <lualib.h>
+
+#include <nbdkit-plugin.h>
+
+/* Backwards compatibility function for Lua 5.1.
+ *
+ * This is taken from https://github.com/keplerproject/lua-compat-5.3
+ * where it is distributed under a compatible license to nbdkit.
+ */
+#ifndef HAVE_LUA_ISINTEGER
+static int
+lua_isinteger (lua_State *L, int index)
+{
+ if (lua_type (L, index) == LUA_TNUMBER) {
+ lua_Number n = lua_tonumber (L, index);
+ lua_Integer i = lua_tointeger (L, index);
+
+ if (i == n)
+ return 1;
+ }
+ return 0;
+}
+#endif /* HAVE_LUA_ISINTEGER */
+
+static lua_State *L;
+static const char *script;
+
+static void
+lua_plugin_load (void)
+{
+ L = luaL_newstate ();
+ if (L == NULL) {
+ nbdkit_error ("could not create Lua interpreter: %m");
+ exit (EXIT_FAILURE);
+ }
+ luaL_openlibs (L);
+}
+
+static void
+lua_plugin_unload (void)
+{
+ if (L)
+ lua_close (L);
+}
+
+/* Test if a function was defined by the Lua code. */
+static int
+function_defined (const char *name)
+{
+ int r;
+
+ lua_getglobal (L, name);
+ r = lua_isfunction (L, -1) == 1;
+ lua_pop (L, 1);
+ return r;
+}
+
+static void
+lua_plugin_dump_plugin (void)
+{
+#ifdef LUA_VERSION_MAJOR
+ printf ("lua_version=%s", LUA_VERSION_MAJOR);
+#ifdef LUA_VERSION_MINOR
+ printf (".%s", LUA_VERSION_MINOR);
+#ifdef LUA_VERSION_RELEASE
+ printf (".%s", LUA_VERSION_RELEASE);
+#endif
+#endif
+ printf ("\n");
+#endif
+
+ if (script && function_defined ("dump_plugin")) {
+ lua_getglobal (L, "dump_plugin");
+ if (lua_pcall (L, 0, 0, 0) != 0) {
+ nbdkit_error ("dump_plugin: %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ }
+ }
+}
+
+static int
+lua_plugin_config (const char *key, const char *value)
+{
+ if (!script) {
+ /* The first parameter MUST be "script". */
+ if (strcmp (key, "script") != 0) {
+ nbdkit_error ("the first parameter must be script=/path/to/script.lua");
+ return -1;
+ }
+ script = value;
+
+ assert (L);
+
+ /* Load the Lua file. */
+ if (luaL_loadfile (L, script) != 0) {
+ /* We don't need to print the script name because it's
+ * contained in the error message (as well as the line number).
+ */
+ nbdkit_error ("could not parse Lua script %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ return -1;
+ }
+ if (lua_pcall (L, 0, 0, 0) != 0) {
+ nbdkit_error ("could not run Lua script: %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ return -1;
+ }
+
+ /* Minimal set of callbacks which are required (by nbdkit itself). */
+ if (!function_defined ("open") ||
+ !function_defined ("get_size") ||
+ !function_defined ("pread")) {
+ nbdkit_error ("%s: one of the required callbacks "
+ "'open', 'get_size' or 'pread' "
+ "is not defined by this Lua script. "
+ "nbdkit requires these callbacks.", script);
+ return -1;
+ }
+ }
+ else if (function_defined ("config")) {
+ lua_getglobal (L, "config");
+ lua_pushstring (L, key);
+ lua_pushstring (L, value);
+ if (lua_pcall (L, 2, 0, 0) != 0) {
+ nbdkit_error ("config: %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ return -1;
+ }
+ return 0;
+ }
+ else {
+ /* Emulate what core nbdkit does if a config callback is NULL. */
+ nbdkit_error ("%s: this plugin does not need command line configuration",
+ script);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+lua_plugin_config_complete (void)
+{
+ if (function_defined ("config_complete")) {
+ lua_getglobal (L, "config_complete");
+ if (lua_pcall (L, 0, 0, 0) != 0) {
+ nbdkit_error ("config_complete: %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ return -1;
+ }
+ return 0;
+ }
+
+ return 0;
+}
+
+static void *
+lua_plugin_open (int readonly)
+{
+ int *h;
+
+ /* We store a Lua reference (an integer) in the handle. */
+ h = malloc (sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+
+ lua_getglobal (L, "open");
+ lua_pushboolean (L, readonly);
+ if (lua_pcall (L, 1, 1, 0) != 0) {
+ nbdkit_error ("open: %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ free (h);
+ return NULL;
+ }
+
+ /* Create a reference to the Lua handle returned by open(). */
+ *h = luaL_ref (L, LUA_REGISTRYINDEX);
+
+ return h;
+}
+
+static void
+lua_plugin_close (void *handle)
+{
+ int *h = handle;
+
+ if (function_defined ("close")) {
+ lua_getglobal (L, "close");
+ lua_rawgeti (L, LUA_REGISTRYINDEX, *h);
+ if (lua_pcall (L, 1, 0, 0) != 0) {
+ nbdkit_error ("close: %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ }
+ }
+
+ /* Ensure that the Lua handle is freed. */
+ luaL_unref (L, LUA_REGISTRYINDEX, *h);
+ /* Free C handle. */
+ free (handle);
+}
+
+static int64_t
+lua_plugin_get_size (void *handle)
+{
+ int *h = handle;
+ int64_t r;
+
+ lua_getglobal (L, "get_size");
+ lua_rawgeti (L, LUA_REGISTRYINDEX, *h);
+ if (lua_pcall (L, 1, 1, 0) != 0) {
+ nbdkit_error ("get_size: %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ return -1;
+ }
+ if (lua_isinteger (L, -1))
+ r = lua_tointeger (L, -1);
+ else if (lua_isnumber (L, -1))
+ r = (int64_t) lua_tonumber (L, -1);
+ else {
+ nbdkit_error ("get_size: cannot convert returned value to an integer");
+ r = -1;
+ }
+ lua_pop (L, 1);
+ return r;
+}
+
+static int
+lua_plugin_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ int *h = handle;
+ size_t len;
+ const char *str;
+
+ lua_getglobal (L, "pread");
+ lua_rawgeti (L, LUA_REGISTRYINDEX, *h);
+ lua_pushinteger (L, count);
+ lua_pushinteger (L, offset);
+ if (lua_pcall (L, 3, 1, 0) != 0) {
+ nbdkit_error ("pread: %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ return -1;
+ }
+ str = lua_tolstring (L, -1, &len);
+ if (str == NULL) {
+ nbdkit_error ("pread: return value is not a string");
+ lua_pop (L, 1);
+ return -1;
+ }
+ if (len < count) {
+ nbdkit_error ("pread: returned string length < count bytes");
+ lua_pop (L, 1);
+ return -1;
+ }
+ memcpy (buf, str, count);
+ lua_pop (L, 1);
+ return 0;
+}
+
+static int
+lua_plugin_pwrite (void *handle, const void *buf,
+ uint32_t count, uint64_t offset)
+{
+ int *h = handle;
+
+ if (function_defined ("pwrite")) {
+ lua_getglobal (L, "pwrite");
+ lua_rawgeti (L, LUA_REGISTRYINDEX, *h);
+ lua_pushlstring (L, buf, count);
+ lua_pushinteger (L, offset);
+ if (lua_pcall (L, 3, 0, 0) != 0) {
+ nbdkit_error ("pwrite: %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ return -1;
+ }
+ return 0;
+ }
+
+ nbdkit_error ("pwrite not implemented");
+ return -1;
+}
+
+static int
+lua_plugin_can_write (void *handle)
+{
+ int *h = handle;
+ int r;
+
+ if (function_defined ("can_write")) {
+ lua_getglobal (L, "can_write");
+ lua_rawgeti (L, LUA_REGISTRYINDEX, *h);
+ if (lua_pcall (L, 1, 1, 0) != 0) {
+ nbdkit_error ("can_write: %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ return -1;
+ }
+ if (!lua_isboolean (L, -1)) {
+ nbdkit_error ("can_write: return value is not a boolean");
+ lua_pop (L, 1);
+ return -1;
+ }
+ r = lua_toboolean (L, -1);
+ lua_pop (L, 1);
+ return r;
+ }
+ /* No can_write callback, but there's a pwrite callback defined, so
+ * return 1. (In C modules, nbdkit would do this).
+ */
+ else if (function_defined ("pwrite"))
+ return 1;
+ else
+ return 0;
+}
+
+static int
+lua_plugin_can_flush (void *handle)
+{
+ int *h = handle;
+ int r;
+
+ if (function_defined ("can_flush")) {
+ lua_getglobal (L, "can_flush");
+ lua_rawgeti (L, LUA_REGISTRYINDEX, *h);
+ if (lua_pcall (L, 1, 1, 0) != 0) {
+ nbdkit_error ("can_flush: %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ return -1;
+ }
+ if (!lua_isboolean (L, -1)) {
+ nbdkit_error ("can_flush: return value is not a boolean");
+ lua_pop (L, 1);
+ return -1;
+ }
+ r = lua_toboolean (L, -1);
+ lua_pop (L, 1);
+ return r;
+ }
+ /* No can_flush callback, but there's a plugin_flush callback
+ * defined, so return 1. (In C modules, nbdkit would do this).
+ */
+ else if (function_defined ("plugin_flush"))
+ return 1;
+ else
+ return 0;
+}
+
+static int
+lua_plugin_can_trim (void *handle)
+{
+ int *h = handle;
+ int r;
+
+ if (function_defined ("can_trim")) {
+ lua_getglobal (L, "can_trim");
+ lua_rawgeti (L, LUA_REGISTRYINDEX, *h);
+ if (lua_pcall (L, 1, 1, 0) != 0) {
+ nbdkit_error ("can_trim: %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ return -1;
+ }
+ if (!lua_isboolean (L, -1)) {
+ nbdkit_error ("can_trim: return value is not a boolean");
+ lua_pop (L, 1);
+ return -1;
+ }
+ r = lua_toboolean (L, -1);
+ lua_pop (L, 1);
+ return r;
+ }
+ /* No can_trim callback, but there's a trim callback defined, so
+ * return 1. (In C modules, nbdkit would do this).
+ */
+ else if (function_defined ("trim"))
+ return 1;
+ else
+ return 0;
+}
+
+static int
+lua_plugin_is_rotational (void *handle)
+{
+ int *h = handle;
+ int r;
+
+ if (function_defined ("is_rotational")) {
+ lua_getglobal (L, "is_rotational");
+ lua_rawgeti (L, LUA_REGISTRYINDEX, *h);
+ if (lua_pcall (L, 1, 1, 0) != 0) {
+ nbdkit_error ("is_rotational: %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ return -1;
+ }
+ if (!lua_isboolean (L, -1)) {
+ nbdkit_error ("is_rotational: return value is not a boolean");
+ lua_pop (L, 1);
+ return -1;
+ }
+ r = lua_toboolean (L, -1);
+ lua_pop (L, 1);
+ return r;
+ }
+ else
+ return 0;
+}
+
+static int
+lua_plugin_flush (void *handle)
+{
+ int *h = handle;
+
+ if (function_defined ("flush")) {
+ lua_getglobal (L, "flush");
+ lua_rawgeti (L, LUA_REGISTRYINDEX, *h);
+ if (lua_pcall (L, 1, 0, 0) != 0) {
+ nbdkit_error ("flush: %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ return -1;
+ }
+ return 0;
+ }
+
+ /* Ignore lack of flush callback, although probably nbdkit will
+ * never call this since .can_flush returns false.
+ */
+ return 0;
+}
+
+static int
+lua_plugin_trim (void *handle, uint32_t count, uint64_t offset)
+{
+ int *h = handle;
+
+ if (function_defined ("trim")) {
+ lua_getglobal (L, "trim");
+ lua_rawgeti (L, LUA_REGISTRYINDEX, *h);
+ lua_pushinteger (L, count);
+ lua_pushinteger (L, offset);
+ if (lua_pcall (L, 3, 0, 0) != 0) {
+ nbdkit_error ("trim: %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ return -1;
+ }
+ return 0;
+ }
+
+ /* Ignore lack of trim callback, although probably nbdkit will never
+ * call this since .can_trim returns false.
+ */
+ return 0;
+}
+
+static int
+lua_plugin_zero (void *handle, uint32_t count, uint64_t offset, int may_trim)
+{
+ int *h = handle;
+
+ if (function_defined ("zero")) {
+ lua_getglobal (L, "zero");
+ lua_rawgeti (L, LUA_REGISTRYINDEX, *h);
+ lua_pushinteger (L, count);
+ lua_pushinteger (L, offset);
+ lua_pushboolean (L, may_trim);
+ if (lua_pcall (L, 4, 0, 0) != 0) {
+ nbdkit_error ("zero: %s", lua_tostring (L, -1));
+ lua_pop (L, 1);
+ return -1;
+ }
+ return 0;
+ }
+
+ nbdkit_debug ("zero falling back to pwrite");
+ nbdkit_set_error (EOPNOTSUPP);
+ return -1;
+}
+
+#define lua_plugin_config_help \
+ "script=<FILENAME> (required) The Lua script to run.\n" \
+ "[other arguments may be used by the plugin that you load]"
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+
+static struct nbdkit_plugin plugin = {
+ .name = "lua",
+ .version = PACKAGE_VERSION,
+
+ .load = lua_plugin_load,
+ .unload = lua_plugin_unload,
+ .dump_plugin = lua_plugin_dump_plugin,
+
+ .config = lua_plugin_config,
+ .config_complete = lua_plugin_config_complete,
+ .config_help = lua_plugin_config_help,
+
+ .open = lua_plugin_open,
+ .close = lua_plugin_close,
+
+ .get_size = lua_plugin_get_size,
+ .can_write = lua_plugin_can_write,
+ .can_flush = lua_plugin_can_flush,
+ .is_rotational = lua_plugin_is_rotational,
+ .can_trim = lua_plugin_can_trim,
+
+ .pread = lua_plugin_pread,
+ .pwrite = lua_plugin_pwrite,
+ .flush = lua_plugin_flush,
+ .trim = lua_plugin_trim,
+ .zero = lua_plugin_zero,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+=head1 NAME
+
+nbdkit-lua-plugin - nbdkit Lua plugin
+
+=head1 SYNOPSIS
+
+ nbdkit lua /path/to/plugin.lua [arguments...]
+
+=head1 DESCRIPTION
+
+C<nbdkit-lua-plugin> is an embedded Lua interpreter for
+L<nbdkit(1)>, allowing you to write nbdkit plugins in Lua.
+
+=head2 If you have been given an nbdkit Lua plugin
+
+Assuming you have a Lua script which is an nbdkit plugin, you run it
+like this:
+
+ nbdkit lua /path/to/plugin.lua
+
+You may have to add further C<key=value> arguments to the command
+line. Read the Lua script to see if it requires any.
+
+=head1 WRITING A LUA NBDKIT PLUGIN
+
+For an example plugin written in Lua, see:
+L<https://github.com/libguestfs/nbdkit/blob/master/plugins/lua/example.lua>
+
+Broadly speaking, Lua nbdkit plugins work like C ones, so you should
+read L<nbdkit-plugin(3)> first.
+
+To write a Lua nbdkit plugin, you create a Lua file which contains
+at least the following required functions:
+
+ function open (readonly)
+ -- see below
+ return h
+ end
+ function get_size (h)
+ -- see below
+ return size
+ end
+ function pread (h, count, offset)
+ -- see below
+ return buf
+ end
+
+Note that the subroutines must have those literal names (like
+C<open>), because the C part looks up and calls those functions
+directly. You may want to include documentation and globals (eg. for
+storing global state). Also any top-level statements are run when
+nbdkit starts up.
+
+=head2 Executable script
+
+If you want you can make the script executable and include a "shebang"
+at the top:
+
+ #!/usr/sbin/nbdkit lua
+
+See also L<nbdkit(1)/Shebang scripts>.
+
+These scripts can also be installed in the C<$plugindir>. See
+L<nbdkit-plugin(3)/WRITING PLUGINS IN OTHER PROGRAMMING LANGUAGES>.
+
+=head2 Errors
+
+Lua plugin methods can indicate an error by calling C<error> or
+C<assert>. The error message will contain the method name, filename
+and line number where the error occurred, eg:
+
+ error ("could not open " .. filename)
+ --> nbdkit: error: open: myplugin.lua:123: could not open disk.img
+
+=head2 Lua callbacks
+
+This just documents the arguments to the callbacks in Lua, and any
+way that they differ from the C callbacks. In all other respects they
+work the same way as the C callbacks, so you should go and read
+L<nbdkit-plugin(3)>.
+
+=over 4
+
+=item C<dump_plugin>
+
+(Optional)
+
+There are no arguments or return value.
+
+=item C<config>
+
+(Optional)
+
+ function config (key, value)
+ -- No return value.
+ end
+
+=item C<config_complete>
+
+(Optional)
+
+There are no arguments or return value.
+
+=item C<open>
+
+(Required)
+
+ function open (readonly)
+ local handle
+ handle=...
+ return handle
+ end
+
+The C<readonly> flag is a boolean.
+
+You can return any Lua string or object as the handle. It is passed
+back to subsequent calls.
+
+=item C<close>
+
+(Optional)
+
+ function close (h)
+ -- No return value
+ end
+
+After C<close> returns, the reference count of the handle is
+decremented in the C part, which usually means that the handle and its
+contents will be garbage collected.
+
+=item C<get_size>
+
+(Required)
+
+ function get_size (h)
+ local size
+ size= .. the size of the disk ..
+ return size
+ end
+
+This returns the size of the disk.
+
+=item C<can_write>
+
+(Optional)
+
+ function can_write (h)
+ return bool
+ end
+
+Return a boolean indicating whether the disk is writable.
+
+=item C<can_flush>
+
+(Optional)
+
+ function can_flush (h)
+ return bool
+ end
+
+Return a boolean indicating whether flush can be performed.
+
+=item C<is_rotational>
+
+(Optional)
+
+ function is_rotational (h)
+ return bool
+ end
+
+Return a boolean indicating whether the disk is rotational.
+
+=item C<can_trim>
+
+(Optional)
+
+ function can_trim (h)
+ return bool
+ end
+
+Return a boolean indicating whether trim/discard can be performed.
+
+=item C<pread>
+
+(Required)
+
+ function pread (h, count, offset)
+ -- Construct a buffer of length count bytes and return it.
+ return buf
+ end
+
+The body of your C<pread> function should construct a buffer of length
+(at least) C<count> bytes. You should read C<count> bytes from the
+disk starting at C<offset>.
+
+NBD only supports whole reads, so your function should try to read the
+whole region (perhaps requiring a loop). If the read fails or is
+partial, your function should call C<error>.
+
+=item C<pwrite>
+
+(Optional)
+
+ function pwrite (h, buf, offset)
+ -- No return value
+ end
+
+The body of your C<pwrite> function should write the C<buf> string to
+the disk. You should write C<count> bytes to the disk starting at
+C<offset>.
+
+NBD only supports whole writes, so your function should try to write
+the whole region (perhaps requiring a loop). If the write fails or is
+partial, your function should call C<error>.
+
+=item C<flush>
+
+(Optional)
+
+ function flush (h)
+ -- No return value
+ end
+
+The body of your C<flush> function should do a L<sync(2)> or
+L<fdatasync(2)> or equivalent on the backing store.
+
+=item C<trim>
+
+(Optional)
+
+ function trim (h, count, offset)
+ -- No return value
+ end
+
+The body of your C<trim> function should "punch a hole" in the backing
+store.
+
+=item C<zero>
+
+(Optional)
+
+ function zero (h, count, offset, may_trim)
+ -- No return value
+ end
+
+The body of your C<zero> function should ensure that C<count> bytes
+of the disk, starting at C<offset>, will read back as zero. If
+C<may_trim> is true, the operation may be optimized as a trim as long
+as subsequent reads see zeroes.
+
+NBD only supports whole writes, so your function should try to write
+the whole region (perhaps requiring a loop). If the write fails or is
+partial, your function should call C<error>.
+
+=back
+
+=head2 Missing callbacks
+
+=over 4
+
+=item Missing: C<load>, C<unload>, C<name>, C<version>, C<longname>,
+C<description>, C<config_help>, C<can_zero>, C<can_fua>
+
+These are not yet supported.
+
+=back
+
+=head2 Threads
+
+The thread model for Lua callbacks currently cannot be set from Lua.
+It is hard-coded in the C part to
+C<NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS>. This may change or be
+settable in future.
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2017 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-memory-plugin.pod
+
+plugin_LTLIBRARIES = nbdkit-memory-plugin.la
+
+nbdkit_memory_plugin_la_SOURCES = \
+ memory.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_memory_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/sparse
+nbdkit_memory_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_memory_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+nbdkit_memory_plugin_la_LIBADD = \
+ $(top_builddir)/common/sparse/libsparse.la
+
+if HAVE_POD
+
+man_MANS = nbdkit-memory-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-memory-plugin.1: nbdkit-memory-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2017 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+ true; \
+ else \
+ false; \
+ fi; \
+}
+am__make_running_with_option = \
+ case $${target_option-} in \
+ ?) ;; \
+ *) echo "am__make_running_with_option: internal error: invalid" \
+ "target option '$${target_option-}' specified" >&2; \
+ exit 1;; \
+ esac; \
+ has_opt=no; \
+ sane_makeflags=$$MAKEFLAGS; \
+ if $(am__is_gnu_make); then \
+ sane_makeflags=$$MFLAGS; \
+ else \
+ case $$MAKEFLAGS in \
+ *\\[\ \ ]*) \
+ bs=\\; \
+ sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+ | sed "s/$$bs$$bs[$$bs $$bs ]*//g"`;; \
+ esac; \
+ fi; \
+ skip_next=no; \
+ strip_trailopt () \
+ { \
+ flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+ }; \
+ for flg in $$sane_makeflags; do \
+ test $$skip_next = yes && { skip_next=no; continue; }; \
+ case $$flg in \
+ *=*|--*) continue;; \
+ -*I) strip_trailopt 'I'; skip_next=yes;; \
+ -*I?*) strip_trailopt 'I';; \
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+ uninstall-man1 uninstall-pluginLTLIBRARIES
+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-memory-plugin.1: nbdkit-memory-plugin.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <errno.h>
+#include <assert.h>
+
+#include <pthread.h>
+
+#include <nbdkit-plugin.h>
+
+#include "sparse.h"
+
+/* The size of disk in bytes (initialized by size=<SIZE> parameter). */
+static int64_t size = 0;
+
+/* Debug directory operations (-D memory.dir=1). */
+int memory_debug_dir;
+
+/* Sparse array - the lock must be held when accessing this from
+ * connected callbacks.
+ */
+static struct sparse_array *sa;
+static pthread_mutex_t lock = PTHREAD_MUTEX_INITIALIZER;
+
+static void
+memory_load (void)
+{
+ sa = alloc_sparse_array (memory_debug_dir);
+ if (sa == NULL) {
+ perror ("malloc");
+ exit (EXIT_FAILURE);
+ }
+}
+
+static void
+memory_unload (void)
+{
+ free_sparse_array (sa);
+}
+
+static int
+memory_config (const char *key, const char *value)
+{
+ if (strcmp (key, "size") == 0) {
+ size = nbdkit_parse_size (value);
+ if (size == -1)
+ return -1;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+memory_config_complete (void)
+{
+ if (size == 0) {
+ nbdkit_error ("you must specify size=<SIZE> on the command line");
+ return -1;
+ }
+ return 0;
+}
+
+#define memory_config_help \
+ "size=<SIZE> (required) Size of the backing disk"
+
+/* Create the per-connection handle. */
+static void *
+memory_open (int readonly)
+{
+ return NBDKIT_HANDLE_NOT_NEEDED;
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* Get the disk size. */
+static int64_t
+memory_get_size (void *handle)
+{
+ return (int64_t) size;
+}
+
+/* Serves the same data over multiple connections. */
+static int
+memory_can_multi_conn (void *handle)
+{
+ return 1;
+}
+
+/* Read data. */
+static int
+memory_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ pthread_mutex_lock (&lock);
+ sparse_array_read (sa, buf, count, offset);
+ pthread_mutex_unlock (&lock);
+ return 0;
+}
+
+/* Write data. */
+static int
+memory_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset)
+{
+ int r;
+
+ pthread_mutex_lock (&lock);
+ r = sparse_array_write (sa, buf, count, offset);
+ pthread_mutex_unlock (&lock);
+ return r;
+}
+
+/* Zero. */
+static int
+memory_zero (void *handle, uint32_t count, uint64_t offset, int may_trim)
+{
+ pthread_mutex_lock (&lock);
+ sparse_array_zero (sa, count, offset);
+ pthread_mutex_unlock (&lock);
+ return 0;
+}
+
+/* Trim (same as zero). */
+static int
+memory_trim (void *handle, uint32_t count, uint64_t offset)
+{
+ pthread_mutex_lock (&lock);
+ sparse_array_zero (sa, count, offset);
+ pthread_mutex_unlock (&lock);
+ return 0;
+}
+
+/* Extents. */
+static int
+memory_extents (void *handle, uint32_t count, uint64_t offset,
+ uint32_t flags, struct nbdkit_extents *extents)
+{
+ int r;
+
+ pthread_mutex_lock (&lock);
+ r = sparse_array_extents (sa, count, offset, extents);
+ pthread_mutex_unlock (&lock);
+ return r;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "memory",
+ .version = PACKAGE_VERSION,
+ .load = memory_load,
+ .unload = memory_unload,
+ .config = memory_config,
+ .config_complete = memory_config_complete,
+ .config_help = memory_config_help,
+ .open = memory_open,
+ .get_size = memory_get_size,
+ .can_multi_conn = memory_can_multi_conn,
+ .pread = memory_pread,
+ .pwrite = memory_pwrite,
+ .zero = memory_zero,
+ .trim = memory_trim,
+ .extents = memory_extents,
+ /* In this plugin, errno is preserved properly along error return
+ * paths from failed system calls.
+ */
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+=head1 NAME
+
+nbdkit-memory-plugin - nbdkit virtual memory (RAM disk) plugin
+
+=head1 SYNOPSIS
+
+ nbdkit memory size=SIZE
+
+=head1 DESCRIPTION
+
+C<nbdkit-memory-plugin> is a plugin for L<nbdkit(1)> which stores a
+single disk image in virtual memory, and discards it when nbdkit
+exits. This plugin can be used for testing or where you don't care
+about the final content of the disk image.
+
+All nbdkit clients will see the same disk content, initially all
+zeroes.
+
+The disk image is stored in memory using a sparse array. The
+allocated parts of the disk image cannot be larger than physical RAM
+plus swap, less whatever is being used by the rest of the system. If
+you want to allocate more space than this use L<nbdkit-file-plugin(1)>
+backed by a temporary file instead.
+
+However the virtual size can be as large as you like, up to the
+maximum supported by nbdkit (S<2⁶³-1 bytes>). This limit is tested
+when nbdkit is compiled, and it should work on all platforms and
+architectures supported by nbdkit.
+
+=head2 Preloading small amounts of data
+
+If you want an in-memory disk image preinitialized with a small amount
+of data specified on the command line, look at
+L<nbdkit-data-plugin(1)> instead. Note by "small" this does not mean
+that the virtual disk image must be small, but that the amount of data
+initially stored sparsely is small enough to specify on the command
+line.
+
+=head2 Preloading large amounts of data
+
+If you want to preload a large amount of data (eg. a disk image) into
+the memory plugin, use L<qemu-img(1)>:
+
+ $ rm -f pid
+ $ nbdkit -P pid memory size=10G
+
+ # wait for nbdkit to become ready to accept connections:
+ $ while [ ! -f pid ]; do sleep 1; done
+
+ # preload Fedora disk image:
+ $ virt-builder fedora-28 --size=10G
+ $ qemu-img convert -p -n fedora-28.img nbd:localhost:10809
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<size=>SIZE
+
+Specify the virtual size of the disk image.
+
+This parameter is required.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<nbdkit-data-plugin(1)>,
+L<nbdkit-file-plugin(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2017-2018 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2017 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-nbd-plugin.pod
+
+plugin_LTLIBRARIES = nbdkit-nbd-plugin.la
+
+nbdkit_nbd_plugin_la_SOURCES = \
+ nbd.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_nbd_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include \
+ -I$(top_srcdir)/common/protocol \
+ -I$(top_srcdir)/server
+nbdkit_nbd_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_nbd_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+nbdkit_nbd_plugin_la_LIBADD = \
+ $(top_builddir)/common/protocol/libprotocol.la
+
+if HAVE_POD
+
+man_MANS = nbdkit-nbd-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-nbd-plugin.1: nbdkit-nbd-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2017 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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+.PRECIOUS: Makefile
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+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdlib.h>
+#include <stddef.h>
+#include <stdbool.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <inttypes.h>
+#include <limits.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <assert.h>
+#include <pthread.h>
+
+#define NBDKIT_API_VERSION 2
+
+#include <nbdkit-plugin.h>
+#include "protocol.h"
+#include "byte-swapping.h"
+
+static char *sockname = NULL;
+static char *export = NULL;
+
+static void
+nbd_unload (void)
+{
+ free (sockname);
+ free (export);
+}
+
+/* Called for each key=value passed on the command line. This plugin
+ * accepts socket=<sockname> (required for now) and export=<name> (optional).
+ */
+static int
+nbd_config (const char *key, const char *value)
+{
+ if (strcmp (key, "socket") == 0) {
+ /* See FILENAMES AND PATHS in nbdkit-plugin(3) */
+ free (sockname);
+ sockname = nbdkit_absolute_path (value);
+ if (!sockname)
+ return -1;
+ }
+ else if (strcmp (key, "export") == 0) {
+ free (export);
+ export = strdup (value);
+ if (!export) {
+ nbdkit_error ("memory failure: %m");
+ return -1;
+ }
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Check the user did pass a socket=<SOCKNAME> parameter. */
+static int
+nbd_config_complete (void)
+{
+ struct sockaddr_un sock;
+
+ if (sockname == NULL) {
+ nbdkit_error ("you must supply the socket=<SOCKNAME> parameter "
+ "after the plugin name on the command line");
+ return -1;
+ }
+ if (strlen (sockname) > sizeof sock.sun_path) {
+ nbdkit_error ("socket file name too large");
+ return -1;
+ }
+ if (!export)
+ export = strdup ("");
+ if (!export) {
+ nbdkit_error ("memory failure: %m");
+ return -1;
+ }
+ return 0;
+}
+
+#define nbd_config_help \
+ "socket=<SOCKNAME> (required) The Unix socket to connect to.\n" \
+ "export=<NAME> Export name to connect to (default \"\").\n" \
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* The per-transaction details */
+struct transaction {
+ union {
+ uint64_t cookie;
+ int fds[2];
+ } u;
+ void *buf;
+ uint32_t count;
+ struct transaction *next;
+};
+
+/* The per-connection handle */
+struct handle {
+ /* These fields are read-only once initialized */
+ int fd;
+ int flags;
+ int64_t size;
+ pthread_t reader;
+
+ /* Prevents concurrent threads from interleaving writes to server */
+ pthread_mutex_t write_lock;
+
+ pthread_mutex_t trans_lock; /* Covers access to all fields below */
+ struct transaction *trans;
+ bool dead;
+};
+
+/* Read an entire buffer, returning 0 on success or -1 with errno set. */
+static int
+read_full (int fd, void *buf, size_t len)
+{
+ ssize_t r;
+
+ while (len) {
+ r = read (fd, buf, len);
+ if (r < 0) {
+ if (errno == EINTR || errno == EAGAIN)
+ continue;
+ return -1;
+ }
+ if (!r) {
+ /* Unexpected EOF */
+ errno = EBADMSG;
+ return -1;
+ }
+ buf += r;
+ len -= r;
+ }
+ return 0;
+}
+
+/* Write an entire buffer, returning 0 on success or -1 with errno set. */
+static int
+write_full (int fd, const void *buf, size_t len)
+{
+ ssize_t r;
+
+ while (len) {
+ r = write (fd, buf, len);
+ if (r < 0) {
+ if (errno == EINTR || errno == EAGAIN)
+ continue;
+ return -1;
+ }
+ buf += r;
+ len -= r;
+ }
+ return 0;
+}
+
+static void
+nbd_lock (struct handle *h)
+{
+ int r = pthread_mutex_lock (&h->trans_lock);
+ assert (!r);
+}
+
+static void
+nbd_unlock (struct handle *h)
+{
+ int r = pthread_mutex_unlock (&h->trans_lock);
+ assert (!r);
+}
+
+/* Called during transmission phases when there is no hope of
+ * resynchronizing with the server, and all further requests from the
+ * client will fail. Returns -1 for convenience. */
+static int
+nbd_mark_dead (struct handle *h)
+{
+ int err = errno;
+
+ nbd_lock (h);
+ if (!h->dead) {
+ nbdkit_debug ("permanent failure while talking to server %s: %m",
+ sockname);
+ h->dead = true;
+ }
+ else if (!err)
+ errno = ESHUTDOWN;
+ nbd_unlock (h);
+ /* NBD only accepts a limited set of errno values over the wire, and
+ nbdkit converts all other values to EINVAL. If we died due to an
+ errno value that cannot transmit over the wire, translate it to
+ ESHUTDOWN instead. */
+ if (err == EPIPE || err == EBADMSG)
+ nbdkit_set_error (ESHUTDOWN);
+ return -1;
+}
+
+/* Find and remove the transaction corresponding to cookie from the list. */
+static struct transaction *
+find_trans_by_cookie (struct handle *h, uint64_t cookie)
+{
+ struct transaction **ptr;
+ struct transaction *trans;
+
+ nbd_lock (h);
+ ptr = &h->trans;
+ while ((trans = *ptr) != NULL) {
+ if (cookie == trans->u.cookie)
+ break;
+ ptr = &trans->next;
+ }
+ if (trans)
+ *ptr = trans->next;
+ nbd_unlock (h);
+ return trans;
+}
+
+/* Send a request, return 0 on success or -1 on write failure. */
+static int
+nbd_request_raw (struct handle *h, uint16_t flags, uint16_t type,
+ uint64_t offset, uint32_t count, uint64_t cookie,
+ const void *buf)
+{
+ struct request req = {
+ .magic = htobe32 (NBD_REQUEST_MAGIC),
+ .flags = htobe16 (flags),
+ .type = htobe16 (type),
+ .handle = cookie, /* Opaque to server, so endianness doesn't matter */
+ .offset = htobe64 (offset),
+ .count = htobe32 (count),
+ };
+ int r;
+
+ pthread_mutex_lock (&h->write_lock);
+ nbdkit_debug ("sending request type %d (%s), flags %#x, offset %#" PRIx64
+ ", count %#x, cookie %#" PRIx64, type, name_of_nbd_cmd (type),
+ flags, offset, count, cookie);
+ r = write_full (h->fd, &req, sizeof req);
+ if (buf && !r)
+ r = write_full (h->fd, buf, count);
+ pthread_mutex_unlock (&h->write_lock);
+ return r;
+}
+
+/* Perform the request half of a transaction. On success, return the
+ non-negative fd for reading the reply; on error return -1. */
+static int
+nbd_request_full (struct handle *h, uint16_t flags, uint16_t type,
+ uint64_t offset, uint32_t count, const void *req_buf,
+ void *rep_buf)
+{
+ int err;
+ struct transaction *trans;
+ int fd;
+ uint64_t cookie;
+
+ trans = calloc (1, sizeof *trans);
+ if (!trans) {
+ nbdkit_error ("unable to track transaction: %m");
+ /* Still in sync with server, so don't mark connection dead */
+ return -1;
+ }
+ if (pipe (trans->u.fds)) {
+ nbdkit_error ("unable to create pipe: %m");
+ /* Still in sync with server, so don't mark connection dead */
+ free (trans);
+ return -1;
+ }
+ trans->buf = rep_buf;
+ trans->count = rep_buf ? count : 0;
+ nbd_lock (h);
+ if (h->dead) {
+ nbd_unlock (h);
+ goto err;
+ }
+ trans->next = h->trans;
+ h->trans = trans;
+ fd = trans->u.fds[0];
+ cookie = trans->u.cookie;
+ nbd_unlock (h);
+ if (nbd_request_raw (h, flags, type, offset, count, cookie, req_buf) == 0)
+ return fd;
+ trans = find_trans_by_cookie (h, cookie);
+
+ err:
+ err = errno;
+ if (trans) {
+ close (trans->u.fds[0]);
+ close (trans->u.fds[1]);
+ free (trans);
+ }
+ else
+ close (fd);
+ errno = err;
+ return nbd_mark_dead (h);
+}
+
+/* Shorthand for nbd_request_full when no extra buffers are involved. */
+static int
+nbd_request (struct handle *h, uint16_t flags, uint16_t type, uint64_t offset,
+ uint32_t count)
+{
+ return nbd_request_full (h, flags, type, offset, count, NULL, NULL);
+}
+
+/* Read a reply, and look up the fd corresponding to the transaction.
+ Return the server's non-negative answer (converted to local errno
+ value) on success, or -1 on read failure. */
+static int
+nbd_reply_raw (struct handle *h, int *fd)
+{
+ struct simple_reply rep;
+ struct transaction *trans;
+ void *buf;
+ uint32_t count;
+
+ *fd = -1;
+ if (read_full (h->fd, &rep, sizeof rep) < 0)
+ return nbd_mark_dead (h);
+ if (be32toh (rep.magic) != NBD_SIMPLE_REPLY_MAGIC)
+ return nbd_mark_dead (h);
+ nbdkit_debug ("received reply for cookie %#" PRIx64 ", status %s",
+ rep.handle, name_of_nbd_error(be32toh (rep.error)));
+ trans = find_trans_by_cookie (h, rep.handle);
+ if (!trans) {
+ nbdkit_error ("reply with unexpected cookie %#" PRIx64, rep.handle);
+ return nbd_mark_dead (h);
+ }
+
+ *fd = trans->u.fds[1];
+ buf = trans->buf;
+ count = trans->count;
+ free (trans);
+ switch (be32toh (rep.error)) {
+ case NBD_SUCCESS:
+ if (buf && read_full (h->fd, buf, count) < 0)
+ return nbd_mark_dead (h);
+ return 0;
+ case NBD_EPERM:
+ return EPERM;
+ case NBD_EIO:
+ return EIO;
+ case NBD_ENOMEM:
+ return ENOMEM;
+ default:
+ nbdkit_debug ("unexpected error %d, squashing to EINVAL",
+ be32toh (rep.error));
+ /* fallthrough */
+ case NBD_EINVAL:
+ return EINVAL;
+ case NBD_ENOSPC:
+ return ENOSPC;
+ case NBD_EOVERFLOW:
+ return EOVERFLOW;
+ case NBD_ESHUTDOWN:
+ return ESHUTDOWN;
+ }
+}
+
+/* Reader loop. */
+void *
+nbd_reader (void *handle)
+{
+ struct handle *h = handle;
+ bool done = false;
+ int r;
+
+ while (!done) {
+ int fd;
+
+ r = nbd_reply_raw (h, &fd);
+ if (r >= 0) {
+ if (write (fd, &r, sizeof r) != sizeof r) {
+ nbdkit_error ("failed to write pipe: %m");
+ abort ();
+ }
+ }
+ if (fd >= 0)
+ close (fd);
+ nbd_lock (h);
+ done = h->dead;
+ nbd_unlock (h);
+ }
+
+ /* Clean up any stranded in-flight requests */
+ r = ESHUTDOWN;
+ while (1) {
+ struct transaction *trans;
+
+ nbd_lock (h);
+ trans = h->trans;
+ h->trans = trans ? trans->next : NULL;
+ nbd_unlock (h);
+ if (!trans)
+ break;
+ if (write (trans->u.fds[1], &r, sizeof r) != sizeof r) {
+ nbdkit_error ("failed to write pipe: %m");
+ abort ();
+ }
+ close (trans->u.fds[1]);
+ free (trans);
+ }
+ return NULL;
+}
+
+/* Perform the reply half of a transaction. */
+static int
+nbd_reply (struct handle *h, int fd)
+{
+ int err;
+
+ if (read (fd, &err, sizeof err) != sizeof err) {
+ nbdkit_debug ("failed to read pipe: %m");
+ err = EIO;
+ }
+ close (fd);
+ errno = err;
+ return err ? -1 : 0;
+}
+
+/* Create the per-connection handle. */
+static void *
+nbd_open (int readonly)
+{
+ struct handle *h;
+ struct sockaddr_un sock = { .sun_family = AF_UNIX };
+ struct old_handshake old;
+ uint64_t version;
+
+ h = calloc (1, sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+ h->fd = socket (AF_UNIX, SOCK_STREAM, 0);
+ if (h->fd < 0) {
+ nbdkit_error ("socket: %m");
+ free (h);
+ return NULL;
+ }
+ /* We already validated length during nbd_config_complete */
+ assert (strlen (sockname) <= sizeof sock.sun_path);
+ memcpy (sock.sun_path, sockname, strlen (sockname));
+ if (connect (h->fd, (const struct sockaddr *) &sock, sizeof sock) < 0) {
+ nbdkit_error ("connect: %m");
+ goto err;
+ }
+
+ /* old and new handshake share same meaning of first 16 bytes */
+ if (read_full (h->fd, &old, offsetof (struct old_handshake, exportsize))) {
+ nbdkit_error ("unable to read magic: %m");
+ goto err;
+ }
+ if (strncmp (old.nbdmagic, "NBDMAGIC", sizeof old.nbdmagic)) {
+ nbdkit_error ("wrong magic, %s is not an NBD server", sockname);
+ goto err;
+ }
+ version = be64toh (old.version);
+ if (version == OLD_VERSION) {
+ if (read_full (h->fd,
+ (char *) &old + offsetof (struct old_handshake, exportsize),
+ sizeof old - offsetof (struct old_handshake, exportsize))) {
+ nbdkit_error ("unable to read old handshake: %m");
+ goto err;
+ }
+ h->size = be64toh (old.exportsize);
+ h->flags = be16toh (old.eflags);
+ }
+ else if (version == NEW_VERSION) {
+ uint16_t gflags;
+ uint32_t cflags;
+ struct new_option opt;
+ struct new_handshake_finish finish;
+ size_t expect;
+
+ if (read_full (h->fd, &gflags, sizeof gflags)) {
+ nbdkit_error ("unable to read global flags: %m");
+ goto err;
+ }
+ gflags = be16toh (gflags);
+ cflags = htobe32 (gflags & (NBD_FLAG_FIXED_NEWSTYLE | NBD_FLAG_NO_ZEROES));
+ if (write_full (h->fd, &cflags, sizeof cflags)) {
+ nbdkit_error ("unable to return global flags: %m");
+ goto err;
+ }
+
+ /* For now, we don't do any option haggling, but go straight into
+ transmission phase */
+ opt.version = htobe64 (NEW_VERSION);
+ opt.option = htobe32 (NBD_OPT_EXPORT_NAME);
+ opt.optlen = htobe32 (strlen (export));
+ if (write_full (h->fd, &opt, sizeof opt) ||
+ write_full (h->fd, export, strlen (export))) {
+ nbdkit_error ("unable to request export '%s': %m", export);
+ goto err;
+ }
+ expect = sizeof finish;
+ if (gflags & NBD_FLAG_NO_ZEROES)
+ expect -= sizeof finish.zeroes;
+ if (read_full (h->fd, &finish, expect)) {
+ nbdkit_error ("unable to read new handshake: %m");
+ goto err;
+ }
+ h->size = be64toh (finish.exportsize);
+ h->flags = be16toh (finish.eflags);
+ }
+ else {
+ nbdkit_error ("unexpected version %#" PRIx64, version);
+ goto err;
+ }
+ if (readonly)
+ h->flags |= NBD_FLAG_READ_ONLY;
+
+ /* Spawn a dedicated reader thread */
+ if ((errno = pthread_mutex_init (&h->write_lock, NULL))) {
+ nbdkit_error ("failed to initialize write mutex: %m");
+ goto err;
+ }
+ if ((errno = pthread_mutex_init (&h->trans_lock, NULL))) {
+ nbdkit_error ("failed to initialize transaction mutex: %m");
+ pthread_mutex_destroy (&h->write_lock);
+ goto err;
+ }
+ if ((errno = pthread_create (&h->reader, NULL, nbd_reader, h))) {
+ nbdkit_error ("failed to initialize reader thread: %m");
+ pthread_mutex_destroy (&h->write_lock);
+ pthread_mutex_destroy (&h->trans_lock);
+ goto err;
+ }
+
+ return h;
+
+ err:
+ close (h->fd);
+ free (h);
+ return NULL;
+}
+
+/* Free up the per-connection handle. */
+static void
+nbd_close (void *handle)
+{
+ struct handle *h = handle;
+
+ if (!h->dead) {
+ nbd_request_raw (h, 0, NBD_CMD_DISC, 0, 0, 0, NULL);
+ shutdown (h->fd, SHUT_WR);
+ }
+ if ((errno = pthread_join (h->reader, NULL)))
+ nbdkit_debug ("failed to join reader thread: %m");
+ close (h->fd);
+ pthread_mutex_destroy (&h->write_lock);
+ pthread_mutex_destroy (&h->trans_lock);
+ free (h);
+}
+
+/* Get the file size. */
+static int64_t
+nbd_get_size (void *handle)
+{
+ struct handle *h = handle;
+
+ return h->size;
+}
+
+static int
+nbd_can_write (void *handle)
+{
+ struct handle *h = handle;
+
+ return !(h->flags & NBD_FLAG_READ_ONLY);
+}
+
+static int
+nbd_can_flush (void *handle)
+{
+ struct handle *h = handle;
+
+ return h->flags & NBD_FLAG_SEND_FLUSH;
+}
+
+static int
+nbd_is_rotational (void *handle)
+{
+ struct handle *h = handle;
+
+ return h->flags & NBD_FLAG_ROTATIONAL;
+}
+
+static int
+nbd_can_trim (void *handle)
+{
+ struct handle *h = handle;
+
+ return h->flags & NBD_FLAG_SEND_TRIM;
+}
+
+static int
+nbd_can_zero (void *handle)
+{
+ struct handle *h = handle;
+
+ return h->flags & NBD_FLAG_SEND_WRITE_ZEROES;
+}
+
+static int
+nbd_can_fua (void *handle)
+{
+ struct handle *h = handle;
+
+ return h->flags & NBD_FLAG_SEND_FUA ? NBDKIT_FUA_NATIVE : NBDKIT_FUA_NONE;
+}
+
+static int
+nbd_can_multi_conn (void *handle)
+{
+ struct handle *h = handle;
+
+ return h->flags & NBD_FLAG_CAN_MULTI_CONN;
+}
+
+/* Read data from the file. */
+static int
+nbd_pread (void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ struct handle *h = handle;
+ int c;
+
+ assert (!flags);
+ c = nbd_request_full (h, 0, NBD_CMD_READ, offset, count, NULL, buf);
+ return c < 0 ? c : nbd_reply (h, c);
+}
+
+/* Write data to the file. */
+static int
+nbd_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ struct handle *h = handle;
+ int c;
+
+ assert (!(flags & ~NBDKIT_FLAG_FUA));
+ c = nbd_request_full (h, flags & NBDKIT_FLAG_FUA ? NBD_CMD_FLAG_FUA : 0,
+ NBD_CMD_WRITE, offset, count, buf, NULL);
+ return c < 0 ? c : nbd_reply (h, c);
+}
+
+/* Write zeroes to the file. */
+static int
+nbd_zero (void *handle, uint32_t count, uint64_t offset, uint32_t flags)
+{
+ struct handle *h = handle;
+ int c;
+ int f = 0;
+
+ assert (!(flags & ~(NBDKIT_FLAG_FUA | NBDKIT_FLAG_MAY_TRIM)));
+ assert (h->flags & NBD_FLAG_SEND_WRITE_ZEROES);
+
+ if (!(flags & NBDKIT_FLAG_MAY_TRIM))
+ f |= NBD_CMD_FLAG_NO_HOLE;
+ if (flags & NBDKIT_FLAG_FUA)
+ f |= NBD_CMD_FLAG_FUA;
+ c = nbd_request (h, f, NBD_CMD_WRITE_ZEROES, offset, count);
+ return c < 0 ? c : nbd_reply (h, c);
+}
+
+/* Trim a portion of the file. */
+static int
+nbd_trim (void *handle, uint32_t count, uint64_t offset, uint32_t flags)
+{
+ struct handle *h = handle;
+ int c;
+
+ assert (!(flags & ~NBDKIT_FLAG_FUA));
+ c = nbd_request (h, flags & NBDKIT_FLAG_FUA ? NBD_CMD_FLAG_FUA : 0,
+ NBD_CMD_TRIM, offset, count);
+ return c < 0 ? c : nbd_reply (h, c);
+}
+
+/* Flush the file to disk. */
+static int
+nbd_flush (void *handle, uint32_t flags)
+{
+ struct handle *h = handle;
+ int c;
+
+ assert (!flags);
+ c = nbd_request (h, 0, NBD_CMD_FLUSH, 0, 0);
+ return c < 0 ? c : nbd_reply (h, c);
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "nbd",
+ .longname = "nbdkit nbd plugin",
+ .version = PACKAGE_VERSION,
+ .unload = nbd_unload,
+ .config = nbd_config,
+ .config_complete = nbd_config_complete,
+ .config_help = nbd_config_help,
+ .open = nbd_open,
+ .close = nbd_close,
+ .get_size = nbd_get_size,
+ .can_write = nbd_can_write,
+ .can_flush = nbd_can_flush,
+ .is_rotational = nbd_is_rotational,
+ .can_trim = nbd_can_trim,
+ .can_zero = nbd_can_zero,
+ .can_fua = nbd_can_fua,
+ .can_multi_conn = nbd_can_multi_conn,
+ .pread = nbd_pread,
+ .pwrite = nbd_pwrite,
+ .zero = nbd_zero,
+ .flush = nbd_flush,
+ .trim = nbd_trim,
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN (plugin)
--- /dev/null
+=head1 NAME
+
+nbdkit-nbd-plugin - nbdkit nbd plugin
+
+=head1 SYNOPSIS
+
+ nbdkit nbd socket=SOCKNAME [export=NAME]
+
+=head1 DESCRIPTION
+
+C<nbdkit-nbd-plugin> is an NBD forwarding plugin for L<nbdkit(1)>.
+
+It provides an NBD server that forwards all traffic as a client to
+another existing NBD server. A primary usage of this setup is to
+alter the set of features available to the ultimate end client,
+without having to change the original server (for example, to convert
+between oldstyle and newstyle, or to add TLS support where the original
+server lacks it).
+
+For now, this is limited to connecting to another NBD server over a
+named Unix socket without TLS, although it is feasible that future
+additions will support network sockets and encryption.
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<socket=>SOCKNAME
+
+Connect to the NBD server located at the Unix socket C<SOCKNAME>. The
+server can speak either new or old style protocol.
+
+This parameter is required.
+
+=item B<export=>NAME
+
+If this parameter is given, and the server speaks new style protocol,
+then connect to the named export instead of the default export (the
+empty string).
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+=head1 COPYRIGHT
+
+Copyright (C) 2017 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2017 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-null-plugin.pod
+
+plugin_LTLIBRARIES = nbdkit-null-plugin.la
+
+nbdkit_null_plugin_la_SOURCES = \
+ null.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_null_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_null_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_null_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-null-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-null-plugin.1: nbdkit-null-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2017 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+ true; \
+ else \
+ false; \
+ fi; \
+}
+am__make_running_with_option = \
+ case $${target_option-} in \
+ ?) ;; \
+ *) echo "am__make_running_with_option: internal error: invalid" \
+ "target option '$${target_option-}' specified" >&2; \
+ exit 1;; \
+ esac; \
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+ sane_makeflags=$$MAKEFLAGS; \
+ if $(am__is_gnu_make); then \
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+ else \
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+ | sed "s/$$bs$$bs[$$bs $$bs ]*//g"`;; \
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+ fi; \
+ skip_next=no; \
+ strip_trailopt () \
+ { \
+ flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+ }; \
+ for flg in $$sane_makeflags; do \
+ test $$skip_next = yes && { skip_next=no; continue; }; \
+ case $$flg in \
+ *=*|--*) continue;; \
+ -*I) strip_trailopt 'I'; skip_next=yes;; \
+ -*I?*) strip_trailopt 'I';; \
+ -*O) strip_trailopt 'O'; skip_next=yes;; \
+ -*O?*) strip_trailopt 'O';; \
+ -*l) strip_trailopt 'l'; skip_next=yes;; \
+ -*l?*) strip_trailopt 'l';; \
+ -[dEDm]) skip_next=yes;; \
+ -[JT]) skip_next=yes;; \
+ esac; \
+ case $$flg in \
+ *$$target_option*) has_opt=yes; break;; \
+ esac; \
+ done; \
+ test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
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+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-null-plugin.1: nbdkit-null-plugin.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+=head1 NAME
+
+nbdkit-null-plugin - nbdkit bitbucket plugin
+
+=head1 SYNOPSIS
+
+ nbdkit null [size=SIZE]
+
+=head1 DESCRIPTION
+
+C<nbdkit-null-plugin> is a null plugin for L<nbdkit(1)>. Everything
+written to the virtual device is discarded, and reads back as zeroes.
+
+Most NBD consumers will be very confused by this device. Trying to
+create filesystems etc on it will likely fail badly. If the client is
+caching writes locally then you will get inconsistent read behaviour.
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<size=>SIZE
+
+Specify the virtual size of the disk image.
+
+This parameter is optional. If omitted then a zero-sized device is
+created.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<nbdkit-full-plugin(1)>,
+L<nbdkit-pattern-plugin(1)>,
+L<nbdkit-random-plugin(1)>.
+L<nbdkit-zero-plugin(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2017 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <errno.h>
+
+#define NBDKIT_API_VERSION 2
+
+#include <nbdkit-plugin.h>
+
+/* The size of disk in bytes (initialized by size=<SIZE> parameter). */
+static int64_t size = 0;
+
+static int
+null_config (const char *key, const char *value)
+{
+ int64_t r;
+
+ if (strcmp (key, "size") == 0) {
+ r = nbdkit_parse_size (value);
+ if (r == -1)
+ return -1;
+ size = r;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+#define null_config_help \
+ "size=<SIZE> Size of the backing disk"
+
+/* Create the per-connection handle. */
+static void *
+null_open (int readonly)
+{
+ return NBDKIT_HANDLE_NOT_NEEDED;
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* Get the disk size. */
+static int64_t
+null_get_size (void *handle)
+{
+ return size;
+}
+
+/* Read data. */
+static int
+null_pread (void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ memset (buf, 0, count);
+ return 0;
+}
+
+/* Write data. */
+static int
+null_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ /* nothing */
+ return 0;
+}
+
+/* Write zeroes. */
+static int
+null_zero (void *handle, uint32_t count, uint64_t offset, uint32_t flags)
+{
+ /* nothing */
+ return 0;
+}
+
+/* Flush is a no-op, so advertise native FUA support */
+static int
+null_can_fua (void *handle)
+{
+ return NBDKIT_FUA_NATIVE;
+}
+
+/* Trim. */
+static int
+null_trim (void *handle, uint32_t count, uint64_t offset, uint32_t flags)
+{
+ /* nothing */
+ return 0;
+}
+
+/* Nothing is persistent, so flush is trivially supported */
+static int
+null_flush (void *handle, uint32_t flags)
+{
+ return 0;
+}
+
+/* Extents. */
+static int
+null_extents (void *handle, uint32_t count, uint64_t offset, uint32_t flags,
+ struct nbdkit_extents *extents)
+{
+ return nbdkit_add_extent (extents, 0, size,
+ NBDKIT_EXTENT_HOLE | NBDKIT_EXTENT_ZERO);
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "null",
+ .version = PACKAGE_VERSION,
+ .config = null_config,
+ .config_help = null_config_help,
+ .open = null_open,
+ .get_size = null_get_size,
+ .pread = null_pread,
+ .pwrite = null_pwrite,
+ .zero = null_zero,
+ .trim = null_trim,
+ .can_fua = null_can_fua,
+ .flush = null_flush,
+ .extents = null_extents,
+ /* In this plugin, errno is preserved properly along error return
+ * paths from failed system calls.
+ */
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+# nbdkit
+# Copyright (C) 2014 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = \
+ NBDKit.mli \
+ NBDKit.ml \
+ nbdkit-ocaml-plugin.pod
+
+if HAVE_OCAML
+
+ocamllibdir = $(OCAMLLIB)
+ocamllib_DATA = NBDKit.mli NBDKit.cmi NBDKit.cmx NBDKit.o
+
+NBDKit.cmi: NBDKit.mli
+ $(OCAMLC) -c $< -o $@
+
+NBDKit.cmx: NBDKit.ml NBDKit.cmi
+ $(OCAMLOPT) $(OCAMLOPTFLAGS) -c $< -o $@
+NBDKit.o: NBDKit.cmx
+
+# NB: libnbdkitocaml is not plugin. It's a library that you have to
+# link in to the OCaml plugins that you write. nbdkit-ocaml-plugin(3)
+# for more details.
+
+lib_LTLIBRARIES = libnbdkitocaml.la
+
+libnbdkitocaml_la_SOURCES = \
+ ocaml.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+libnbdkitocaml_la_CPPFLAGS = \
+ -I$(OCAMLLIB) \
+ -I$(top_srcdir)/include
+
+libnbdkitocaml_la_CFLAGS = \
+ $(WARNINGS_CFLAGS) \
+ -fPIC
+
+if HAVE_POD
+
+man_MANS = nbdkit-ocaml-plugin.3
+CLEANFILES += $(man_MANS)
+
+nbdkit-ocaml-plugin.3: nbdkit-ocaml-plugin.pod
+ $(PODWRAPPER) --section=3 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+
+endif
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2014 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+ true; \
+ else \
+ false; \
+ fi; \
+}
+am__make_running_with_option = \
+ case $${target_option-} in \
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+.PRECIOUS: Makefile
+
+
+@HAVE_OCAML_TRUE@NBDKit.cmi: NBDKit.mli
+@HAVE_OCAML_TRUE@ $(OCAMLC) -c $< -o $@
+
+@HAVE_OCAML_TRUE@NBDKit.cmx: NBDKit.ml NBDKit.cmi
+@HAVE_OCAML_TRUE@ $(OCAMLOPT) $(OCAMLOPTFLAGS) -c $< -o $@
+@HAVE_OCAML_TRUE@NBDKit.o: NBDKit.cmx
+
+@HAVE_OCAML_TRUE@@HAVE_POD_TRUE@nbdkit-ocaml-plugin.3: nbdkit-ocaml-plugin.pod
+@HAVE_OCAML_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=3 --man $@ \
+@HAVE_OCAML_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_OCAML_TRUE@@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+(* nbdkit OCaml interface
+ * Copyright (C) 2014-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *)
+
+open Printf
+
+type flags = flag list
+and flag = May_trim | FUA
+
+type fua_flag = FuaNone | FuaEmulate | FuaNative
+
+type 'a plugin = {
+ name : string;
+ longname : string;
+ version : string;
+ description : string;
+
+ load : (unit -> unit) option;
+ unload : (unit -> unit) option;
+
+ config : (string -> string -> unit) option;
+ config_complete : (unit -> unit) option;
+ config_help : string;
+
+ open_connection : (bool -> 'a) option;
+ close : ('a -> unit) option;
+
+ get_size : ('a -> int64) option;
+
+ can_write : ('a -> bool) option;
+ can_flush : ('a -> bool) option;
+ is_rotational : ('a -> bool) option;
+ can_trim : ('a -> bool) option;
+
+ dump_plugin : (unit -> unit) option;
+
+ can_zero : ('a -> bool) option;
+ can_fua : ('a -> fua_flag) option;
+
+ pread : ('a -> bytes -> int64 -> flags -> unit) option;
+ pwrite : ('a -> string -> int64 -> flags -> unit) option;
+ flush : ('a -> flags -> unit) option;
+ trim : ('a -> int32 -> int64 -> flags -> unit) option;
+ zero : ('a -> int32 -> int64 -> flags -> unit) option;
+
+ can_multi_conn : ('a -> bool) option;
+}
+
+let default_callbacks = {
+ name = "";
+ longname = "";
+ version = "";
+ description = "";
+
+ load = None;
+ unload = None;
+
+ config = None;
+ config_complete = None;
+ config_help = "";
+
+ open_connection = None;
+ close = None;
+
+ get_size = None;
+
+ can_write = None;
+ can_flush = None;
+ is_rotational = None;
+ can_trim = None;
+
+ dump_plugin = None;
+
+ can_zero = None;
+ can_fua = None;
+
+ pread = None;
+ pwrite = None;
+ flush = None;
+ trim = None;
+ zero = None;
+
+ can_multi_conn = None;
+}
+
+type thread_model =
+| THREAD_MODEL_SERIALIZE_CONNECTIONS
+| THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+| THREAD_MODEL_SERIALIZE_REQUESTS
+| THREAD_MODEL_PARALLEL
+
+external set_thread_model : int -> unit = "ocaml_nbdkit_set_thread_model" "noalloc"
+
+external set_name : string -> unit = "ocaml_nbdkit_set_name" "noalloc"
+external set_longname : string -> unit = "ocaml_nbdkit_set_longname" "noalloc"
+external set_version : string -> unit = "ocaml_nbdkit_set_version" "noalloc"
+external set_description : string -> unit = "ocaml_nbdkit_set_description" "noalloc"
+
+external set_load : (unit -> unit) -> unit = "ocaml_nbdkit_set_load"
+external set_unload : (unit -> unit) -> unit = "ocaml_nbdkit_set_unload"
+
+external set_config : (string -> string -> unit) -> unit = "ocaml_nbdkit_set_config"
+external set_config_complete : (unit -> unit) -> unit = "ocaml_nbdkit_set_config_complete"
+external set_config_help : string -> unit = "ocaml_nbdkit_set_config_help" "noalloc"
+
+external set_open : (bool -> 'a) -> unit = "ocaml_nbdkit_set_open"
+external set_close : ('a -> unit) -> unit = "ocaml_nbdkit_set_close"
+
+external set_get_size : ('a -> int64) -> unit = "ocaml_nbdkit_set_get_size"
+
+external set_can_write : ('a -> bool) -> unit = "ocaml_nbdkit_set_can_write"
+external set_can_flush : ('a -> bool) -> unit = "ocaml_nbdkit_set_can_flush"
+external set_is_rotational : ('a -> bool) -> unit = "ocaml_nbdkit_set_is_rotational"
+external set_can_trim : ('a -> bool) -> unit = "ocaml_nbdkit_set_can_trim"
+
+external set_dump_plugin : (unit -> unit) -> unit = "ocaml_nbdkit_set_dump_plugin" "noalloc"
+
+external set_can_zero : ('a -> bool) -> unit = "ocaml_nbdkit_set_can_zero"
+external set_can_fua : ('a -> fua_flag) -> unit = "ocaml_nbdkit_set_can_fua"
+
+external set_pread : ('a -> bytes -> int64 -> flags -> unit) -> unit = "ocaml_nbdkit_set_pread"
+external set_pwrite : ('a -> string -> int64 -> flags -> unit) -> unit = "ocaml_nbdkit_set_pwrite"
+external set_flush : ('a -> flags -> unit) -> unit = "ocaml_nbdkit_set_flush"
+external set_trim : ('a -> int32 -> int64 -> flags -> unit) -> unit = "ocaml_nbdkit_set_trim"
+external set_zero : ('a -> int32 -> int64 -> flags -> unit) -> unit = "ocaml_nbdkit_set_zero"
+
+external set_can_multi_conn : ('a -> bool) -> unit = "ocaml_nbdkit_set_can_multi_conn"
+
+let may f = function None -> () | Some a -> f a
+
+let register_plugin thread_model plugin =
+ (* Check the required fields have been set by the caller. *)
+ if plugin.name = "" then
+ failwith "'.name' field in NBDKit.plugin structure must be set";
+ if plugin.open_connection = None then
+ failwith (sprintf "%s: '.open_connection' field in NBDKit.plugin structure must be set"
+ plugin.name);
+ if plugin.get_size = None then
+ failwith (sprintf "%s: '.get_size' field in NBDKit.plugin structure must be set"
+ plugin.name);
+ if plugin.pread = None then
+ failwith (sprintf "%s: '.pread' field in NBDKit.plugin structure must be set"
+ plugin.name);
+
+ (* Set the fields in the C code. *)
+ set_thread_model (Obj.magic thread_model);
+
+ set_name plugin.name;
+ if plugin.longname <> "" then
+ set_longname plugin.longname;
+ if plugin.version <> "" then
+ set_version plugin.version;
+ if plugin.description <> "" then
+ set_description plugin.description;
+
+ may set_load plugin.load;
+ may set_unload plugin.unload;
+
+ may set_config plugin.config;
+ may set_config_complete plugin.config_complete;
+ if plugin.config_help <> "" then
+ set_config_help plugin.config_help;
+
+ may set_open plugin.open_connection;
+ may set_close plugin.close;
+
+ may set_get_size plugin.get_size;
+
+ may set_can_write plugin.can_write;
+ may set_can_flush plugin.can_flush;
+ may set_is_rotational plugin.is_rotational;
+ may set_can_trim plugin.can_trim;
+
+ may set_dump_plugin plugin.dump_plugin;
+
+ may set_can_zero plugin.can_zero;
+ may set_can_fua plugin.can_fua;
+
+ may set_pread plugin.pread;
+ may set_pwrite plugin.pwrite;
+ may set_flush plugin.flush;
+ may set_trim plugin.trim;
+ may set_zero plugin.zero;
+
+ may set_can_multi_conn plugin.can_multi_conn
+
+external _set_error : int -> unit = "ocaml_nbdkit_set_error" "noalloc"
+
+let set_error unix_error =
+ (* There's an awkward triple translation going on here, because
+ * OCaml Unix.error codes, errno on the host system, and NBD_*
+ * errnos are not all the same integer value. Plus we cannot
+ * read the host system errno values from OCaml.
+ *)
+ let nbd_error =
+ match unix_error with
+ | Unix.EPERM -> 1
+ | Unix.EIO -> 2
+ | Unix.ENOMEM -> 3
+ | Unix.EINVAL -> 4
+ | Unix.ENOSPC -> 5
+ | Unix.ESHUTDOWN -> 6
+ | _ -> 4 (* EINVAL *) in
+
+ _set_error nbd_error
+
+external _debug : string -> unit = "ocaml_nbdkit_debug" "noalloc"
+
+let debug fs =
+ ksprintf _debug fs
--- /dev/null
+(* nbdkit OCaml interface
+ * Copyright (C) 2014-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ *)
+
+(** The interface between nbdkit plugins written in OCaml and nbdkit.
+
+ Reading [nbdkit-ocaml-plugin(3)] is advised. *)
+
+type flags = flag list
+and flag = May_trim | FUA
+
+type fua_flag = FuaNone | FuaEmulate | FuaNative
+
+type 'a plugin = {
+ name : string; (* required *)
+ longname : string;
+ version : string;
+ description : string;
+
+ load : (unit -> unit) option;
+ unload : (unit -> unit) option;
+
+ config : (string -> string -> unit) option;
+ config_complete : (unit -> unit) option;
+ config_help : string;
+
+ open_connection : (bool -> 'a) option; (* required *)
+ close : ('a -> unit) option;
+
+ get_size : ('a -> int64) option; (* required *)
+
+ can_write : ('a -> bool) option;
+ can_flush : ('a -> bool) option;
+ is_rotational : ('a -> bool) option;
+ can_trim : ('a -> bool) option;
+
+ dump_plugin : (unit -> unit) option;
+
+ can_zero : ('a -> bool) option;
+ can_fua : ('a -> fua_flag) option;
+
+ pread : ('a -> bytes -> int64 -> flags -> unit) option; (* required *)
+ pwrite : ('a -> string -> int64 -> flags -> unit) option;
+ flush : ('a -> flags -> unit) option;
+ trim : ('a -> int32 -> int64 -> flags -> unit) option;
+ zero : ('a -> int32 -> int64 -> flags -> unit) option;
+
+ can_multi_conn : ('a -> bool) option;
+}
+(** The plugin fields and callbacks. ['a] is the handle type. *)
+
+val default_callbacks : 'a plugin
+
+type thread_model =
+| THREAD_MODEL_SERIALIZE_CONNECTIONS
+| THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+| THREAD_MODEL_SERIALIZE_REQUESTS
+| THREAD_MODEL_PARALLEL
+
+val register_plugin : thread_model -> 'a plugin -> unit
+
+val set_error : Unix.error -> unit
+(** Set the errno returned over the NBD protocol to the client.
+
+ Notice however that the NBD protocol only supports a small
+ handful of errno values. Any other errno will be translated
+ into [EINVAL]. *)
+
+val debug : ('a, unit, string, unit) format4 -> 'a
+(** Print a debug message when nbdkit is in verbose mode. *)
--- /dev/null
+=head1 NAME
+
+nbdkit-ocaml-plugin - writing nbdkit plugins in OCaml
+
+=head1 SYNOPSIS
+
+ nbdkit /path/to/plugin.so [arguments...]
+
+ nbdkit plugin [arguments...]
+
+=head1 DESCRIPTION
+
+This manual page describes how to write nbdkit plugins in natively
+compiled OCaml code.
+
+Note this requires OCaml E<ge> 4.02.2, which has support for shared
+libraries. See L<http://caml.inria.fr/mantis/view.php?id=6693>
+
+=head1 WRITING AN OCAML NBDKIT PLUGIN
+
+Broadly speaking, OCaml nbdkit plugins work like C ones, so you should
+read L<nbdkit-plugin(3)> first.
+
+You should also look at C<NBDKit.mli> which describes the plugin
+interface for OCaml plugins.
+
+Your OCaml code should call C<NBDKit.register_plugin> like this:
+
+ let plugin = {
+ NBDKit.default_callbacks with
+ NBDKit.name = "myplugin";
+ version = "1.0";
+ open_connection = Some myplugin_open;
+ get_size = Some myplugin_get_size;
+ pread = Some myplugin_pread;
+ (* etc *)
+ }
+
+ let thread_model = NBDKit.THREAD_MODEL_SERIALIZE_CONNECTIONS
+
+ let () = NBDKit.register_plugin thread_model plugin
+
+Your plugin can only call C<register_plugin> once.
+
+=head2 Compiling an OCaml nbdkit plugin
+
+OCaml nbdkit plugins are natively compiled into shared object
+(C<*.so>) files which nbdkit loads like regular C plugins.
+
+After writing your OCaml plugin (C<myplugin.ml>), compile and link it
+using this command:
+
+ ocamlopt.opt -output-obj -runtime-variant _pic \
+ -o nbdkit-myplugin-plugin.so \
+ NBDKit.cmx myplugin.ml \
+ -cclib -lnbdkitocaml
+
+You can then use C<nbdkit-myplugin-plugin.so> as an nbdkit plugin (see
+L<nbdkit(1)>, L<nbdkit-plugin(3)>):
+
+ nbdkit ./nbdkit-myplugin-plugin.so [args ...]
+
+or if the C<.so> file is installed in the C<$plugindir> directory:
+
+ nbdkit myplugin [args ...]
+
+=head2 Handle
+
+Your C<open_connection> callback can return an OCaml value of any
+type. The same value is passed back to the per-connection callbacks
+like C<get_size> and C<pread>.
+
+Typically (although this is not a requirement) you define your own
+handle struct in your plugin:
+
+ type handle = {
+ (* any per-connection data you want to store goes here *)
+ h_id : int; (* this is just an example field *)
+ h_readonly : bool;
+ }
+
+ let id = ref 0
+ let myplugin_open readonly =
+ (* return a newly allocated handle *)
+ incr id;
+ { h_id = !id; h_readonly = readonly }
+
+ let myplugin_get_size handle =
+ printf "handle ID = %d\n" handle.h_id;
+ (* ... *)
+
+=head2 Errors
+
+Plugins can return errors from methods by raising an exception.
+
+If you need to control which errno is sent back to the client you have
+to call C<NBDKit.set_error> before raising the exception.
+
+Note if you call some function in the OCaml C<Unix> module or another
+library which fails, then the errno of the failing system call will
+not be returned to the client. You have to catch the exception and
+call C<NBDKit.set_error> before re-raising the exception if you need
+to control this.
+
+=head2 Threads
+
+The first parameter of C<NBDKit.register_plugin> is the thread model,
+which can be one of the values in the table below. For more
+information on thread models, see L<nbdkit-plugin(3)/THREADS>. Note
+that because of the garbage collector lock in OCaml, callbacks are
+never truly concurrent.
+
+=over 4
+
+=item C<NBDKit.THREAD_MODEL_SERIALIZE_CONNECTIONS>
+
+=item C<NBDKit.THREAD_MODEL_SERIALIZE_ALL_REQUESTS>
+
+=item C<NBDKit.THREAD_MODEL_SERIALIZE_REQUESTS>
+
+=item C<NBDKit.THREAD_MODEL_PARALLEL>
+
+=back
+
+=head2 Debugging
+
+You can add debugging messages which are printed only when nbdkit is
+in verbose mode by calling:
+
+ NBDKit.debug fs [...]
+
+This function works like C<Printf.printf>.
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<ocamlopt(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2014 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2014-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <errno.h>
+
+#include <caml/alloc.h>
+#include <caml/callback.h>
+#include <caml/memory.h>
+#include <caml/mlvalues.h>
+#include <caml/printexc.h>
+#include <caml/threads.h>
+
+#define NBDKIT_API_VERSION 2
+
+#include <nbdkit-plugin.h>
+
+/* This constructor runs when the plugin loads, and initializes the
+ * OCaml runtime, and lets the plugin set up its callbacks.
+ */
+static void constructor (void) __attribute__((constructor));
+static void
+constructor (void)
+{
+ char *argv[2] = { "nbdkit", NULL };
+
+ /* Initialize OCaml runtime. */
+ caml_startup (argv);
+}
+
+/* Instead of using the NBDKIT_REGISTER_PLUGIN macro, we construct the
+ * nbdkit_plugin struct and return it.
+ */
+static void unload_wrapper (void);
+
+static struct nbdkit_plugin plugin = {
+ ._struct_size = sizeof (plugin),
+ ._api_version = NBDKIT_API_VERSION,
+
+ /* The following field is used as a canary to detect whether the
+ * OCaml code started up and called us back successfully. If it's
+ * still set to NULL when plugin_init is called, then we can print a
+ * suitable error message.
+ */
+ .name = NULL,
+
+ .unload = unload_wrapper,
+};
+
+/* These globals store the OCaml functions that we actually call.
+ * Also the assigned ones are roots to ensure the GC doesn't free them.
+ */
+static value load_fn;
+static value unload_fn;
+
+static value config_fn;
+static value config_complete_fn;
+
+static value open_fn;
+static value close_fn;
+
+static value get_size_fn;
+
+static value can_write_fn;
+static value can_flush_fn;
+static value is_rotational_fn;
+static value can_trim_fn;
+
+static value dump_plugin_fn;
+
+static value can_zero_fn;
+static value can_fua_fn;
+
+static value pread_fn;
+static value pwrite_fn;
+static value flush_fn;
+static value trim_fn;
+static value zero_fn;
+
+static value can_multi_conn_fn;
+
+/* Wrapper functions that translate calls from C (ie. nbdkit) to OCaml. */
+
+static void
+load_wrapper (void)
+{
+ caml_leave_blocking_section ();
+ caml_callback (load_fn, Val_unit);
+ caml_enter_blocking_section ();
+}
+
+/* We always have an unload function, since it also has to free the
+ * globals we allocated.
+ */
+static void
+unload_wrapper (void)
+{
+ if (unload_fn) {
+ caml_leave_blocking_section ();
+ caml_callback (unload_fn, Val_unit);
+ caml_enter_blocking_section ();
+ }
+
+ free ((char *) plugin.name);
+ free ((char *) plugin.longname);
+ free ((char *) plugin.version);
+ free ((char *) plugin.description);
+ free ((char *) plugin.config_help);
+
+#define REMOVE(fn) \
+ if (fn##_fn) caml_remove_generational_global_root (&fn##_fn)
+ REMOVE (load);
+ REMOVE (unload);
+
+ REMOVE (config);
+ REMOVE (config_complete);
+
+ REMOVE (open);
+ REMOVE (close);
+
+ REMOVE (get_size);
+
+ REMOVE (can_write);
+ REMOVE (can_flush);
+ REMOVE (is_rotational);
+ REMOVE (can_trim);
+
+ REMOVE (dump_plugin);
+
+ REMOVE (can_zero);
+ REMOVE (can_fua);
+
+ REMOVE (pread);
+ REMOVE (pwrite);
+ REMOVE (flush);
+ REMOVE (trim);
+ REMOVE (zero);
+
+ REMOVE (can_multi_conn);
+}
+
+static int
+config_wrapper (const char *key, const char *val)
+{
+ CAMLparam0 ();
+ CAMLlocal3 (keyv, valv, rv);
+
+ caml_leave_blocking_section ();
+
+ keyv = caml_copy_string (key);
+ valv = caml_copy_string (val);
+
+ rv = caml_callback2_exn (config_fn, keyv, valv);
+ if (Is_exception_result (rv)) {
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, -1);
+ }
+
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, 0);
+}
+
+static int
+config_complete_wrapper (void)
+{
+ CAMLparam0 ();
+ CAMLlocal1 (rv);
+
+ caml_leave_blocking_section ();
+
+ rv = caml_callback_exn (config_complete_fn, Val_unit);
+ if (Is_exception_result (rv)) {
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, -1);
+ }
+
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, 0);
+}
+
+static void *
+open_wrapper (int readonly)
+{
+ CAMLparam0 ();
+ CAMLlocal1 (rv);
+ value *ret;
+
+ caml_leave_blocking_section ();
+
+ rv = caml_callback_exn (open_fn, Val_bool (readonly));
+ if (Is_exception_result (rv)) {
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ caml_enter_blocking_section ();
+ CAMLreturnT (void *, NULL);
+ }
+
+ /* Allocate a root on the C heap that points to the OCaml handle. */
+ ret = malloc (sizeof *ret);
+ if (ret == NULL) abort ();
+ *ret = rv;
+ caml_register_generational_global_root (ret);
+
+ caml_enter_blocking_section ();
+ CAMLreturnT (void *, ret);
+}
+
+static void
+close_wrapper (void *h)
+{
+ CAMLparam0 ();
+ CAMLlocal1 (rv);
+
+ caml_leave_blocking_section ();
+
+ rv = caml_callback_exn (close_fn, *(value *) h);
+ if (Is_exception_result (rv)) {
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ /*FALLTHROUGH*/
+ }
+
+ caml_remove_generational_global_root (h);
+ free (h);
+
+ caml_enter_blocking_section ();
+ CAMLreturn0;
+}
+
+static int64_t
+get_size_wrapper (void *h)
+{
+ CAMLparam0 ();
+ CAMLlocal1 (rv);
+ int64_t r;
+
+ caml_leave_blocking_section ();
+
+ rv = caml_callback_exn (get_size_fn, *(value *) h);
+ if (Is_exception_result (rv)) {
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ caml_enter_blocking_section ();
+ CAMLreturnT (int64_t, -1);
+ }
+
+ r = Int64_val (rv);
+
+ caml_enter_blocking_section ();
+ CAMLreturnT (int64_t, r);
+}
+
+static int
+can_write_wrapper (void *h)
+{
+ CAMLparam0 ();
+ CAMLlocal1 (rv);
+
+ caml_leave_blocking_section ();
+
+ rv = caml_callback_exn (can_write_fn, *(value *) h);
+ if (Is_exception_result (rv)) {
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, -1);
+ }
+
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, Bool_val (rv));
+}
+
+static int
+can_flush_wrapper (void *h)
+{
+ CAMLparam0 ();
+ CAMLlocal1 (rv);
+
+ caml_leave_blocking_section ();
+
+ rv = caml_callback_exn (can_flush_fn, *(value *) h);
+ if (Is_exception_result (rv)) {
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, -1);
+ }
+
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, Bool_val (rv));
+}
+
+static int
+is_rotational_wrapper (void *h)
+{
+ CAMLparam0 ();
+ CAMLlocal1 (rv);
+
+ caml_leave_blocking_section ();
+
+ rv = caml_callback_exn (is_rotational_fn, *(value *) h);
+ if (Is_exception_result (rv)) {
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, -1);
+ }
+
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, Bool_val (rv));
+}
+
+static int
+can_trim_wrapper (void *h)
+{
+ CAMLparam0 ();
+ CAMLlocal1 (rv);
+
+ caml_leave_blocking_section ();
+
+ rv = caml_callback_exn (can_trim_fn, *(value *) h);
+ if (Is_exception_result (rv)) {
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, -1);
+ }
+
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, Bool_val (rv));
+}
+
+static void
+dump_plugin_wrapper (void)
+{
+ CAMLparam0 ();
+ CAMLlocal1 (rv);
+
+ caml_leave_blocking_section ();
+
+ rv = caml_callback_exn (dump_plugin_fn, Val_unit);
+ if (Is_exception_result (rv))
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ caml_enter_blocking_section ();
+ CAMLreturn0;
+}
+
+static int
+can_zero_wrapper (void *h)
+{
+ CAMLparam0 ();
+ CAMLlocal1 (rv);
+
+ caml_leave_blocking_section ();
+
+ rv = caml_callback_exn (can_zero_fn, *(value *) h);
+ if (Is_exception_result (rv)) {
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, -1);
+ }
+
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, Bool_val (rv));
+}
+
+static int
+can_fua_wrapper (void *h)
+{
+ CAMLparam0 ();
+ CAMLlocal1 (rv);
+
+ caml_leave_blocking_section ();
+
+ rv = caml_callback_exn (can_fua_fn, *(value *) h);
+ if (Is_exception_result (rv)) {
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, -1);
+ }
+
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, Int_val (rv));
+}
+
+static value
+Val_flags (uint32_t flags)
+{
+ CAMLparam0 ();
+ CAMLlocal2 (consv, rv);
+
+ rv = Val_unit;
+ if (flags & NBDKIT_FLAG_MAY_TRIM) {
+ consv = caml_alloc (2, 0);
+ Store_field (consv, 0, 0); /* 0 = May_trim */
+ Store_field (consv, 1, rv);
+ rv = consv;
+ }
+ if (flags & NBDKIT_FLAG_FUA) {
+ consv = caml_alloc (2, 0);
+ Store_field (consv, 0, 1); /* 1 = FUA */
+ Store_field (consv, 1, rv);
+ rv = consv;
+ }
+
+ CAMLreturn (rv);
+}
+
+static int
+pread_wrapper (void *h, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ CAMLparam0 ();
+ CAMLlocal4 (rv, strv, offsetv, flagsv);
+
+ caml_leave_blocking_section ();
+
+ strv = caml_alloc_string (count);
+ /* Initialize the buffer with zeroes in case the plugin does not
+ * fill it completely.
+ */
+ memset (String_val (strv), 0, count);
+ offsetv = caml_copy_int64 (offset);
+ flagsv = Val_flags (flags);
+
+ value args[] = { *(value *) h, strv, offsetv, flagsv };
+ rv = caml_callbackN_exn (pread_fn, sizeof args / sizeof args[0], args);
+ if (Is_exception_result (rv)) {
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, -1);
+ }
+
+ memcpy (buf, String_val (strv), count);
+
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, 0);
+}
+
+static int
+pwrite_wrapper (void *h, const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ CAMLparam0 ();
+ CAMLlocal4 (rv, strv, offsetv, flagsv);
+
+ caml_leave_blocking_section ();
+
+ strv = caml_alloc_string (count);
+ memcpy (String_val (strv), buf, count);
+ offsetv = caml_copy_int64 (offset);
+ flagsv = Val_flags (flags);
+
+ value args[] = { *(value *) h, strv, offsetv, flagsv };
+ rv = caml_callbackN_exn (pwrite_fn, sizeof args / sizeof args[0], args);
+ if (Is_exception_result (rv)) {
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, -1);
+ }
+
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, 0);
+}
+
+static int
+flush_wrapper (void *h, uint32_t flags)
+{
+ CAMLparam0 ();
+ CAMLlocal2 (rv, flagsv);
+
+ caml_leave_blocking_section ();
+
+ flagsv = Val_flags (flags);
+
+ rv = caml_callback2_exn (flush_fn, *(value *) h, flagsv);
+ if (Is_exception_result (rv)) {
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ CAMLreturnT (int, -1);
+ }
+
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, 0);
+}
+
+static int
+trim_wrapper (void *h, uint32_t count, uint64_t offset, uint32_t flags)
+{
+ CAMLparam0 ();
+ CAMLlocal4 (rv, countv, offsetv, flagsv);
+
+ caml_leave_blocking_section ();
+
+ countv = caml_copy_int32 (count);
+ offsetv = caml_copy_int32 (offset);
+ flagsv = Val_flags (flags);
+
+ value args[] = { *(value *) h, countv, offsetv, flagsv };
+ rv = caml_callbackN_exn (trim_fn, sizeof args / sizeof args[0], args);
+ if (Is_exception_result (rv)) {
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ CAMLreturnT (int, -1);
+ }
+
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, 0);
+}
+
+static int
+zero_wrapper (void *h, uint32_t count, uint64_t offset, uint32_t flags)
+{
+ CAMLparam0 ();
+ CAMLlocal4 (rv, countv, offsetv, flagsv);
+
+ caml_leave_blocking_section ();
+
+ countv = caml_copy_int32 (count);
+ offsetv = caml_copy_int32 (offset);
+ flagsv = Val_flags (flags);
+
+ value args[] = { *(value *) h, countv, offsetv, flagsv };
+ rv = caml_callbackN_exn (zero_fn, sizeof args / sizeof args[0], args);
+ if (Is_exception_result (rv)) {
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ CAMLreturnT (int, -1);
+ }
+
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, 0);
+}
+
+static int
+can_multi_conn_wrapper (void *h)
+{
+ CAMLparam0 ();
+ CAMLlocal1 (rv);
+
+ caml_leave_blocking_section ();
+
+ rv = caml_callback_exn (can_multi_conn_fn, *(value *) h);
+ if (Is_exception_result (rv)) {
+ nbdkit_error ("%s", caml_format_exception (Extract_exception (rv)));
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, -1);
+ }
+
+ caml_enter_blocking_section ();
+ CAMLreturnT (int, Bool_val (rv));
+}
+
+value
+ocaml_nbdkit_set_thread_model (value modelv)
+{
+ plugin._thread_model = Int_val (modelv);
+ return Val_unit;
+}
+
+value
+ocaml_nbdkit_set_name (value namev)
+{
+ plugin.name = strdup (String_val (namev));
+ return Val_unit;
+}
+
+value
+ocaml_nbdkit_set_longname (value longnamev)
+{
+ plugin.longname = strdup (String_val (longnamev));
+ return Val_unit;
+}
+
+value
+ocaml_nbdkit_set_version (value versionv)
+{
+ plugin.version = strdup (String_val (versionv));
+ return Val_unit;
+}
+
+value
+ocaml_nbdkit_set_description (value descriptionv)
+{
+ plugin.description = strdup (String_val (descriptionv));
+ return Val_unit;
+}
+
+value
+ocaml_nbdkit_set_config_help (value helpv)
+{
+ plugin.config_help = strdup (String_val (helpv));
+ return Val_unit;
+}
+
+#define SET(fn) \
+ value \
+ ocaml_nbdkit_set_##fn (value fv) \
+ { \
+ plugin.fn = fn##_wrapper; \
+ fn##_fn = fv; \
+ caml_register_generational_global_root (&fn##_fn); \
+ return Val_unit; \
+ }
+
+SET(load)
+SET(unload)
+
+SET(config)
+SET(config_complete)
+
+SET(open)
+SET(close)
+
+SET(get_size)
+
+SET(can_write)
+SET(can_flush)
+SET(is_rotational)
+SET(can_trim)
+
+SET(dump_plugin)
+
+SET(can_zero)
+SET(can_fua)
+
+SET(pread)
+SET(pwrite)
+SET(flush)
+SET(trim)
+SET(zero)
+
+SET(can_multi_conn)
+
+/* NB: noalloc function. */
+value
+ocaml_nbdkit_set_error (value nv)
+{
+ int err;
+
+ switch (Int_val (nv)) {
+ case 1: err = EPERM; break;
+ case 2: err = EIO; break;
+ case 3: err = ENOMEM; break;
+ case 4: err = EINVAL; break;
+ case 5: err = ENOSPC; break;
+ case 6: err = ESHUTDOWN; break;
+ default: abort ();
+ }
+
+ nbdkit_set_error (err);
+
+ return Val_unit;
+}
+
+/* NB: noalloc function. */
+value
+ocaml_nbdkit_debug (value strv)
+{
+ nbdkit_debug ("%s", String_val (strv));
+
+ return Val_unit;
+}
+
+/* We can't directly use NBDKIT_REGISTER_PLUGIN(). */
+struct nbdkit_plugin *
+plugin_init (void)
+{
+ if (plugin.name == NULL) {
+ fprintf (stderr, "error: OCaml code did not call NBDKit.register_plugin\n");
+ exit (EXIT_FAILURE);
+ }
+ return &plugin;
+}
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-partitioning-plugin.pod
+
+plugin_LTLIBRARIES = nbdkit-partitioning-plugin.la
+
+nbdkit_partitioning_plugin_la_SOURCES = \
+ partitioning.c \
+ partition-gpt.c \
+ partition-mbr.c \
+ virtual-disk.c \
+ virtual-disk.h \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_partitioning_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/gpt \
+ -I$(top_srcdir)/common/include \
+ -I$(top_srcdir)/common/regions \
+ -I.
+nbdkit_partitioning_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_partitioning_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+nbdkit_partitioning_plugin_la_LIBADD = \
+ $(top_builddir)/common/gpt/libgpt.la \
+ $(top_builddir)/common/regions/libregions.la
+
+if HAVE_POD
+
+man_MANS = nbdkit-partitioning-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-partitioning-plugin.1: nbdkit-partitioning-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
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+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
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+#
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+#
+# * Redistributions of source code must retain the above copyright
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+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
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+# * Neither the name of Red Hat nor the names of its contributors may be
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
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+#
+# * Redistributions of source code must retain the above copyright
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+# * Neither the name of Red Hat nor the names of its contributors may be
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
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+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
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+
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+
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+ -rm -f ./$(DEPDIR)/nbdkit_partitioning_plugin_la-partitioning.Plo
+ -rm -f ./$(DEPDIR)/nbdkit_partitioning_plugin_la-virtual-disk.Plo
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+ -rm -f ./$(DEPDIR)/nbdkit_partitioning_plugin_la-partition-mbr.Plo
+ -rm -f ./$(DEPDIR)/nbdkit_partitioning_plugin_la-partitioning.Plo
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+ uninstall-man1 uninstall-pluginLTLIBRARIES
+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-partitioning-plugin.1: nbdkit-partitioning-plugin.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+=head1 NAME
+
+nbdkit-partitioning-plugin - create virtual disk from partitions
+
+=head1 SYNOPSIS
+
+ nbdkit partitioning [file=]part1 [[file=]part2 [file=]part3 ...]
+ [partition-type=mbr|gpt]
+
+=head1 DESCRIPTION
+
+C<nbdkit-partitioning-plugin> is a plugin for L<nbdkit(1)> which
+creates a partitioned virtual drive from a list of one or more files
+each containing single partitions. The plugin concatenates the files
+together and generates a virtual partition table so that NBD clients
+see a single partitioned disk.
+
+If you just want to concatenate files together (without adding a
+partition table) use L<nbdkit-split-plugin(1)>. If you want to select
+a single partition from an existing disk, use
+L<nbdkit-partition-filter(1)>. If you want to create a complete disk
+with a filesystem, look at L<nbdkit-floppy-plugin(1)>,
+L<nbdkit-iso-plugin(1)> or L<nbdkit-linuxdisk-plugin(1)>.
+
+The plugin supports read/write access. To limit clients to read-only
+access use the I<-r> flag.
+
+=head2 Partition table type
+
+Using the C<partition-type> parameter you can choose either an MBR or
+a GPT partition table. If this parameter is I<not> present then:
+
+=over 4
+
+=item number of files E<gt> 4
+
+⇒ GPT
+
+=item else, total file size is larger than supported by MBR
+(approx. 2 TB)
+
+⇒ GPT
+
+=item otherwise
+
+⇒ MBR (for maximum compatibility with clients)
+
+=back
+
+=head2 Type of each partition
+
+The type of each partition is controlled by a partition type byte (for
+MBR) or a partition type GUID (for GPT). This can be set using the
+C<mbr-id> or C<type-guid> parameters respectively and affects the type
+of all following files.
+
+=head2 Padding and alignment
+
+Partition sizes are automatically rounded up to a multiple of the 512
+byte sector size.
+
+Padding may be added between partitions to provide the best alignment.
+This is controlled by the C<alignment> parameter, which affects the
+alignment of all following files.
+
+=head2 Writing to the virtual disk
+
+NBD clients may read and write freely to partitions. Writes are
+propagated through to the underlying files.
+
+NBD clients may read from the virtual partition table, and padding
+areas of the virtual disk. When reading from padding areas, clients
+will see zeroes.
+
+NBD clients will get an I/O error if they try to change the virtual
+partition table or padding areas.
+
+=head1 EXAMPLES
+
+From a bare filesystem stored in a file, create a virtual disk with a
+single partition containing the filesystem:
+
+ nbdkit partitioning ext4fs.img
+
+Create a virtual disk containing boot, swap and root partitions:
+
+ nbdkit partitioning \
+ boot.img \
+ mbr-id=0x82 swap.img mbr-id=0x83 \
+ root.img
+
+This will not be bootable since the virtual partition table does not
+contain a boot sector or boot loader.
+
+Notice that the swap partition is bracketed by C<mbr-id=0x82> to set
+the MBR partition type byte to C<0x82> (Linux swap) for the swap
+partition, followed by C<mbr-id=0x83> to set the MBR partition type
+byte back to C<0x83> (Linux filesystem) for the remaining partition.
+
+If F<file.raw> has a size which is a multiple of 512 bytes then this
+is a no-op because the partitioning plugin adds a partition table
+which is then removed by L<nbdkit-partition-filter(1)>:
+
+ nbdkit --filter=partition partitioning file.raw partition=1
+
+=head1 PARAMETERS
+
+=over 4
+
+=item [B<file=>]FILENAME
+
+One or more files containing partition data.
+
+This parameter is required.
+
+C<file=> is a magic config key and may be omitted in most cases.
+See L<nbdkit(1)/Magic parameters>.
+
+=item B<partition-type=mbr>
+
+Add an MBR (DOS-style) partition table. The MBR format is maximally
+compatible with all clients.
+
+If there are E<gt> 4 partitions then the first three files are mapped
+to primary partitions, an extended partition
+(L<https://en.wikipedia.org/wiki/Extended_boot_record>) is created as
+partition 4, and the files starting from the 4th will appear as
+partition 5 and upwards.
+
+=item B<partition-type=gpt>
+
+Add a GPT partition table. Note that as well as the virtual primary
+partition table added at the beginning of the disk, a virtual
+secondary partition table is added at the end, as required by GPT.
+Also this adds a "protective MBR" as defined by the UEFI spec so that
+old clients which don't understand GPT will ignore the partitions.
+
+=item B<alignment=>N
+
+Set the alignment of all following files to C<N> bytes. The default
+alignment is 1M (2048 sectors).
+
+=item B<mbr-id=>0xN
+
+Set the MBR type byte of all following files to C<0xN>. Type bytes
+are normally specified in hexadecimal, and you must use the C<0x>
+prefix to indicate this. The default is C<0x83> which indicates a
+Linux filesystem.
+
+=item B<type-guid=>GUID
+
+Set the GPT partition type GUID of all following files to C<GUID>.
+The default is C<0FC63DAF-8483-4772-8E79-3D69D8477DE4> which indicates
+a Linux filesystem.
+
+=back
+
+=head1 LIMITS
+
+Although this plugin can create GPT partition tables containing more
+than 128 GPT partitions (in fact, unlimited numbers of partitions),
+some clients will not be able to handle this.
+
+Zero length partitions are not allowed and will cause nbdkit to exit
+with an error when it starts up.
+
+The sector size is fixed at 512 bytes.
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-file-plugin(1)>,
+L<nbdkit-floppy-plugin(1)>,
+L<nbdkit-iso-plugin(1)>,
+L<nbdkit-linuxdisk-plugin(1)>,
+L<nbdkit-partition-filter(1)>,
+L<nbdkit-split-plugin(1)>,
+L<nbdkit-plugin(3)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include <ctype.h>
+#include <inttypes.h>
+#include <assert.h>
+
+#include <nbdkit-plugin.h>
+
+#include "byte-swapping.h"
+
+#include "efi-crc32.h"
+#include "gpt.h"
+#include "regions.h"
+#include "virtual-disk.h"
+
+static void create_gpt_partition_header (const void *pt, bool is_primary,
+ unsigned char *out);
+static void create_gpt_partition_table (unsigned char *out);
+static void create_gpt_partition_table_entry (const struct region *region,
+ bool bootable,
+ char partition_type_guid[16],
+ unsigned char *out);
+static void create_gpt_protective_mbr (unsigned char *out);
+
+void
+create_gpt_layout (void)
+{
+ void *pt;
+
+ /* Protective MBR. LBA 0 */
+ create_gpt_protective_mbr (primary);
+
+ /* Primary partition table. LBA 2-(LBAs+1) */
+ pt = &primary[2*SECTOR_SIZE];
+ create_gpt_partition_table (pt);
+
+ /* Partition table header. LBA 1 */
+ create_gpt_partition_header (pt, true, &primary[SECTOR_SIZE]);
+
+ /* Backup partition table. LBA -(LBAs+2) */
+ pt = secondary;
+ create_gpt_partition_table (pt);
+
+ /* Backup partition table header. LBA -1 */
+ create_gpt_partition_header (pt, false, &secondary[GPT_PTA_LBAs*SECTOR_SIZE]);
+}
+
+static void
+create_gpt_partition_header (const void *pt, bool is_primary,
+ unsigned char *out)
+{
+ uint64_t nr_lbas;
+ struct gpt_header *header = (struct gpt_header *) out;
+
+ nr_lbas = virtual_size (®ions) / SECTOR_SIZE;
+
+ memset (header, 0, sizeof *header);
+ memcpy (header->signature, GPT_SIGNATURE, sizeof (header->signature));
+ memcpy (header->revision, GPT_REVISION, sizeof (header->revision));
+ header->header_size = htole32 (sizeof *header);
+ if (is_primary) {
+ header->current_lba = htole64 (1);
+ header->backup_lba = htole64 (nr_lbas - 1);
+ }
+ else {
+ header->current_lba = htole64 (nr_lbas - 1);
+ header->backup_lba = htole64 (1);
+ }
+ header->first_usable_lba = htole64 (2 + GPT_PTA_LBAs);
+ header->last_usable_lba = htole64 (nr_lbas - GPT_PTA_LBAs - 2);
+ if (is_primary)
+ header->partition_entries_lba = htole64 (2);
+ else
+ header->partition_entries_lba = htole64 (nr_lbas - GPT_PTA_LBAs - 1);
+ header->nr_partition_entries = htole32 (GPT_PTA_SIZE);
+ header->size_partition_entry = htole32 (GPT_PT_ENTRY_SIZE);
+ header->crc_partitions =
+ htole32 (efi_crc32 (pt, GPT_PT_ENTRY_SIZE * GPT_PTA_SIZE));
+
+ /* Must be computed last. */
+ header->crc = htole32 (efi_crc32 (header, sizeof *header));
+}
+
+static void
+create_gpt_partition_table (unsigned char *out)
+{
+ size_t i, j;
+
+ for (j = 0; j < nr_regions (®ions); ++j) {
+ const struct region *region = get_region (®ions, j);
+
+ if (region->type == region_file) {
+ i = region->u.i;
+ assert (i < GPT_PTA_SIZE);
+ create_gpt_partition_table_entry (region, i == 0,
+ files[i].type_guid,
+ out);
+ out += GPT_PT_ENTRY_SIZE;
+ }
+ }
+}
+
+static void
+create_gpt_partition_table_entry (const struct region *region,
+ bool bootable,
+ char partition_type_guid[16],
+ unsigned char *out)
+{
+ size_t i, len;
+ const char *filename;
+ struct gpt_entry *entry = (struct gpt_entry *) out;
+
+ assert (sizeof (struct gpt_entry) == GPT_PT_ENTRY_SIZE);
+
+ memcpy (entry->partition_type_guid, partition_type_guid, 16);
+
+ memcpy (entry->unique_guid, files[region->u.i].guid, 16);
+
+ entry->first_lba = htole64 (region->start / SECTOR_SIZE);
+ entry->last_lba = htole64 (region->end / SECTOR_SIZE);
+ entry->attributes = htole64 (bootable ? 4 : 0);
+
+ /* If the filename is 7 bit ASCII then this will reproduce it as a
+ * UTF-16LE string.
+ *
+ * Is this a security risk? It reveals something about paths on the
+ * server to clients. XXX
+ */
+ filename = files[region->u.i].filename;
+ len = strlen (filename);
+ if (len < 36) {
+ for (i = 0; i < len; ++i)
+ if (filename[i] > 127)
+ goto out;
+
+ for (i = 0; i < len; ++i) {
+ entry->name[2*i] = filename[i];
+ entry->name[2*i+1] = 0;
+ }
+ }
+ out: ;
+}
+
+static void
+create_gpt_protective_mbr (unsigned char *out)
+{
+ struct region region;
+ uint64_t end;
+
+ /* Protective MBR creates a partition with partition ID 0xee which
+ * covers the whole of the disk, or as much of the disk as
+ * expressible with MBR.
+ */
+ region.start = 512;
+ end = virtual_size (®ions) - 1;
+ if (end > UINT32_MAX * SECTOR_SIZE)
+ end = UINT32_MAX * SECTOR_SIZE;
+ region.end = end;
+ region.len = region.end - region.start + 1;
+
+ create_mbr_partition_table_entry (®ion, false, 0xee, &out[0x1be]);
+
+ /* Boot signature. */
+ out[0x1fe] = 0x55;
+ out[0x1ff] = 0xaa;
+}
+
+/* Try to parse a GPT GUID. */
+static unsigned char
+hexdigit (const char c)
+{
+ if (c >= '0' && c <= '9')
+ return c - '0';
+ else if (c >= 'a' && c <= 'f')
+ return c - 'a' + 10;
+ else /* if (c >= 'A' && c <= 'F') */
+ return c - 'A' + 10;
+}
+
+static unsigned char
+hexbyte (const char *p)
+{
+ unsigned char c0, c1;
+
+ c0 = hexdigit (p[0]);
+ c1 = hexdigit (p[1]);
+ return c0 << 4 | c1;
+}
+
+int
+parse_guid (const char *str, char *out)
+{
+ size_t i;
+ size_t len = strlen (str);
+
+ if (len == 36)
+ /* nothing */;
+ else if (len == 38 && str[0] == '{' && str[37] == '}') {
+ str++;
+ len -= 2;
+ }
+ else
+ return -1;
+
+ assert (len == 36);
+
+ if (str[8] != '-' || str[13] != '-' || str[18] != '-' || str[23] != '-')
+ return -1;
+
+ for (i = 0; i < 8; ++i)
+ if (!isxdigit (str[i]))
+ return -1;
+ for (i = 9; i < 13; ++i)
+ if (!isxdigit (str[i]))
+ return -1;
+ for (i = 14; i < 18; ++i)
+ if (!isxdigit (str[i]))
+ return -1;
+ for (i = 19; i < 23; ++i)
+ if (!isxdigit (str[i]))
+ return -1;
+ for (i = 24; i < 36; ++i)
+ if (!isxdigit (str[i]))
+ return -1;
+
+ /* The first, second and third blocks are parsed as little endian,
+ * while the fourth and fifth blocks are big endian.
+ */
+ *out++ = hexbyte (&str[6]); /* first block */
+ *out++ = hexbyte (&str[4]);
+ *out++ = hexbyte (&str[2]);
+ *out++ = hexbyte (&str[0]);
+
+ *out++ = hexbyte (&str[11]); /* second block */
+ *out++ = hexbyte (&str[9]);
+
+ *out++ = hexbyte (&str[16]); /* third block */
+ *out++ = hexbyte (&str[14]);
+
+ *out++ = hexbyte (&str[19]); /* fourth block */
+ *out++ = hexbyte (&str[21]);
+
+ *out++ = hexbyte (&str[24]); /* fifth block */
+ *out++ = hexbyte (&str[26]);
+ *out++ = hexbyte (&str[28]);
+ *out++ = hexbyte (&str[30]);
+ *out++ = hexbyte (&str[32]);
+ *out++ = hexbyte (&str[34]);
+
+ return 0;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include <inttypes.h>
+#include <assert.h>
+
+#include <nbdkit-plugin.h>
+
+#include "byte-swapping.h"
+
+#include "isaligned.h"
+#include "rounding.h"
+
+#include "regions.h"
+#include "virtual-disk.h"
+
+static const struct region *find_file_region (size_t i, size_t *j);
+static const struct region *find_ebr_region (size_t i, size_t *j);
+
+/* Create the MBR and optionally EBRs. */
+void
+create_mbr_layout (void)
+{
+ size_t i, j = 0;
+
+ /* Boot signature. */
+ primary[0x1fe] = 0x55;
+ primary[0x1ff] = 0xaa;
+
+ if (nr_files <= 4) {
+ /* Basic MBR with no extended partition. */
+ for (i = 0; i < nr_files; ++i) {
+ const struct region *region = find_file_region (i, &j);
+
+ create_mbr_partition_table_entry (region, i == 0, files[i].mbr_id,
+ &primary[0x1be + 16*i]);
+ }
+ }
+ else {
+ struct region region;
+ const struct region *rptr, *eptr0, *eptr;
+
+ /* The first three primary partitions correspond to the first
+ * three files.
+ */
+ for (i = 0; i < 3; ++i) {
+ rptr = find_file_region (i, &j);
+ create_mbr_partition_table_entry (rptr, i == 0, files[i].mbr_id,
+ &primary[0x1be + 16*i]);
+ }
+
+ /* The fourth partition is an extended PTE and does not correspond
+ * to any file. This partition starts with the first EBR, so find
+ * it. The partition extends to the end of the disk.
+ */
+ eptr0 = find_ebr_region (3, &j);
+ region.start = eptr0->start;
+ region.end = virtual_size (®ions) - 1; /* to end of disk */
+ region.len = region.end - region.start + 1;
+ create_mbr_partition_table_entry (®ion, false, 0xf, &primary[0x1ee]);
+
+ /* The remaining files are mapped to logical partitions living in
+ * the fourth extended partition.
+ */
+ for (i = 3; i < nr_files; ++i) {
+ if (i == 3)
+ eptr = eptr0;
+ else
+ eptr = find_ebr_region (i, &j);
+ rptr = find_file_region (i, &j);
+
+ /* Signature. */
+ ebr[i-3][0x1fe] = 0x55;
+ ebr[i-3][0x1ff] = 0xaa;
+
+ /* First entry in EBR contains:
+ * offset from EBR sector to the first sector of the logical partition
+ * total count of sectors in the logical partition
+ */
+ region.start = rptr->start - eptr->start;
+ region.len = rptr->len;
+ create_mbr_partition_table_entry (®ion, false, files[i].mbr_id,
+ &ebr[i-3][0x1be]);
+
+ if (i < nr_files-1) {
+ size_t j2 = j;
+ const struct region *enext = find_ebr_region (i+1, &j2);
+ const struct region *rnext = find_file_region (i+1, &j2);
+
+ /* Second entry in the EBR contains:
+ * address of next EBR relative to extended partition
+ * total count of sectors in the next logical partition including
+ * next EBR
+ */
+ region.start = enext->start - eptr0->start;
+ region.len = rnext->end - enext->start + 1;
+ create_mbr_partition_table_entry (®ion, false, 0xf,
+ &ebr[i-3][0x1ce]);
+ }
+ }
+ }
+}
+
+/* Find the region corresponding to file[i].
+ * j is a scratch register ensuring we only do a linear scan.
+ */
+static const struct region *
+find_file_region (size_t i, size_t *j)
+{
+ const struct region *region;
+
+ for (; *j < nr_regions (®ions); ++(*j)) {
+ region = get_region (®ions, *j);
+ if (region->type == region_file && region->u.i == i)
+ return region;
+ }
+ abort ();
+}
+
+/* Find the region corresponding to EBR of file[i] (i >= 3).
+ * j is a scratch register ensuring we only do a linear scan.
+ */
+static const struct region *
+find_ebr_region (size_t i, size_t *j)
+{
+ const struct region *region;
+
+ assert (i >= 3);
+
+ for (; *j < nr_regions (®ions); ++(*j)) {
+ region = get_region (®ions, *j);
+ if (region->type == region_data && region->u.data == ebr[i-3])
+ return region;
+ }
+ abort ();
+}
+
+static void
+chs_too_large (unsigned char *out)
+{
+ const int c = 1023, h = 254, s = 63;
+
+ out[0] = h;
+ out[1] = (c & 0x300) >> 2 | s;
+ out[2] = c & 0xff;
+}
+
+void
+create_mbr_partition_table_entry (const struct region *region,
+ bool bootable, int partition_id,
+ unsigned char *out)
+{
+ uint64_t start_sector, nr_sectors;
+ uint32_t u32;
+
+ assert (IS_ALIGNED (region->start, SECTOR_SIZE));
+
+ start_sector = region->start / SECTOR_SIZE;
+ nr_sectors = DIV_ROUND_UP (region->len, SECTOR_SIZE);
+
+ /* The total_size test in partitioning_config_complete should catch
+ * this earlier.
+ */
+ assert (start_sector <= UINT32_MAX);
+ assert (nr_sectors <= UINT32_MAX);
+
+ out[0] = bootable ? 0x80 : 0;
+ chs_too_large (&out[1]);
+ out[4] = partition_id;
+ chs_too_large (&out[5]);
+ u32 = htole32 (start_sector);
+ memcpy (&out[8], &u32, 4);
+ u32 = htole32 (nr_sectors);
+ memcpy (&out[12], &u32, 4);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <assert.h>
+#include <errno.h>
+#include <time.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <nbdkit-plugin.h>
+
+#include "byte-swapping.h"
+#include "isaligned.h"
+#include "iszero.h"
+#include "rounding.h"
+
+#include "random.h"
+#include "regions.h"
+#include "virtual-disk.h"
+
+#ifndef HAVE_FDATASYNC
+#define fdatasync fsync
+#endif
+
+/* Debug flag: -D partitioning.regions=1: Print the regions table. */
+int partitioning_debug_regions;
+
+/* alignment, mbr_id, type_guid set on the command line for
+ * following partitions.
+ */
+unsigned long alignment = DEFAULT_ALIGNMENT;
+int mbr_id = DEFAULT_MBR_ID;
+char type_guid[16]; /* initialized by partitioning_load function below */
+
+/* partition-type parameter. */
+int parttype = PARTTYPE_UNSET;
+
+/* Files supplied on the command line. */
+struct file *files = NULL;
+size_t nr_files = 0;
+
+/* Virtual disk layout. */
+struct regions regions;
+
+/* Primary and secondary partition tables and extended boot records.
+ * Secondary PT is only used for GPT. EBR array of sectors is only
+ * used for MBR with > 4 partitions and has length equal to nr_files-3.
+ */
+unsigned char *primary = NULL, *secondary = NULL, **ebr = NULL;
+
+/* Used to generate random unique partition GUIDs for GPT. */
+static struct random_state random_state;
+
+static void
+partitioning_load (void)
+{
+ init_regions (®ions);
+ parse_guid (DEFAULT_TYPE_GUID, type_guid);
+ xsrandom (time (NULL), &random_state);
+}
+
+static void
+partitioning_unload (void)
+{
+ size_t i;
+
+ for (i = 0; i < nr_files; ++i)
+ close (files[i].fd);
+ free (files);
+
+ /* We don't need to free regions.regions[].u.data because it points
+ * to primary, secondary or ebr which we free here.
+ */
+ free_regions (®ions);
+
+ free (primary);
+ free (secondary);
+ if (ebr) {
+ for (i = 0; i < nr_files-3; ++i)
+ free (ebr[i]);
+ free (ebr);
+ }
+}
+
+static int
+partitioning_config (const char *key, const char *value)
+{
+ struct file *p;
+ struct file file;
+ size_t i;
+ int err;
+
+ if (strcmp (key, "file") == 0) {
+ file.filename = value;
+ file.alignment = alignment;
+ file.mbr_id = mbr_id;
+ memcpy (file.type_guid, type_guid, sizeof type_guid);
+
+ file.fd = open (file.filename, O_RDWR);
+ if (file.fd == -1) {
+ nbdkit_error ("%s: %m", file.filename);
+ return -1;
+ }
+ if (fstat (file.fd, &file.statbuf) == -1) {
+ err = errno;
+ close (file.fd);
+ errno = err;
+ nbdkit_error ("%s: stat: %m", file.filename);
+ return -1;
+ }
+
+ if (file.statbuf.st_size == 0) {
+ nbdkit_error ("%s: zero length partitions are not allowed",
+ file.filename);
+ return -1;
+ }
+
+ /* Create a random GUID used as "Unique partition GUID". However
+ * this doesn't follow GUID conventions so in theory could make an
+ * invalid value. This is only used by GPT, and we store it in
+ * the file structure because it must be the same across primary
+ * and secondary PT entries.
+ */
+ for (i = 0; i < 16; ++i)
+ file.guid[i] = xrandom (&random_state) & 0xff;
+
+ p = realloc (files, (nr_files+1) * sizeof (struct file));
+ if (p == NULL) {
+ err = errno;
+ close (file.fd);
+ errno = err;
+ nbdkit_error ("realloc: %m");
+ return -1;
+ }
+ files = p;
+ files[nr_files] = file;
+ nr_files++;
+ }
+ else if (strcmp (key, "partition-type") == 0) {
+ if (strcasecmp (value, "mbr") == 0 || strcasecmp (value, "dos") == 0)
+ parttype = PARTTYPE_MBR;
+ else if (strcasecmp (value, "gpt") == 0)
+ parttype = PARTTYPE_GPT;
+ else {
+ nbdkit_error ("unknown partition-type: %s", value);
+ return -1;
+ }
+ }
+ else if (strcmp (key, "alignment") == 0) {
+ int64_t r;
+
+ r = nbdkit_parse_size (value);
+ if (r == -1)
+ return -1;
+
+ if (!(r >= SECTOR_SIZE && r <= MAX_ALIGNMENT)) {
+ nbdkit_error ("partition alignment %" PRIi64 " should be "
+ ">= sector size %" PRIu64 " and "
+ "<= maximum alignment %" PRIu64,
+ r, SECTOR_SIZE, MAX_ALIGNMENT);
+ return -1;
+ }
+ if (!IS_ALIGNED (r, SECTOR_SIZE)) {
+ nbdkit_error ("partition alignment %" PRIi64 " should be "
+ "a multiple of sector size %" PRIu64,
+ r, SECTOR_SIZE);
+ return -1;
+ }
+
+ alignment = r;
+ }
+ else if (strcmp (key, "mbr-id") == 0) {
+ if (sscanf (value, "%i", &mbr_id) != 1) {
+ nbdkit_error ("could not parse mbr-id: %s", value);
+ return -1;
+ }
+ }
+ else if (strcmp (key, "type-guid") == 0) {
+ if (parse_guid (value, type_guid) == -1) {
+ nbdkit_error ("could not validate GUID: %s", value);
+ return -1;
+ }
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+partitioning_config_complete (void)
+{
+ size_t i;
+ uint64_t total_size;
+ bool needs_gpt;
+
+ /* Not enough / too many files? */
+ if (nr_files == 0) {
+ nbdkit_error ("at least one file= parameter must be supplied");
+ return -1;
+ }
+
+ total_size = 0;
+ for (i = 0; i < nr_files; ++i)
+ total_size += files[i].statbuf.st_size;
+ needs_gpt = total_size > MAX_MBR_DISK_SIZE;
+
+ /* Choose default parttype if not set. */
+ if (parttype == PARTTYPE_UNSET) {
+ if (needs_gpt || nr_files > 4) {
+ parttype = PARTTYPE_GPT;
+ nbdkit_debug ("picking partition type GPT");
+ }
+ else {
+ parttype = PARTTYPE_MBR;
+ nbdkit_debug ("picking partition type MBR");
+ }
+ }
+ else if (parttype == PARTTYPE_MBR && needs_gpt) {
+ nbdkit_error ("MBR partition table type supports "
+ "a maximum virtual disk size of about 2 TB, "
+ "but you requested %zu partition(s) "
+ "and a total size of %" PRIu64 " bytes (> %" PRIu64 "). "
+ "Try using: partition-type=gpt",
+ nr_files, total_size, (uint64_t) MAX_MBR_DISK_SIZE);
+ return -1;
+ }
+
+ return create_virtual_disk_layout ();
+}
+
+#define partitioning_config_help \
+ "file=<FILENAME> (required) File(s) containing partitions\n" \
+ "partition-type=mbr|gpt Partition type"
+
+/* Create the per-connection handle. */
+static void *
+partitioning_open (int readonly)
+{
+ return NBDKIT_HANDLE_NOT_NEEDED;
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* Get the disk size. */
+static int64_t
+partitioning_get_size (void *handle)
+{
+ return virtual_size (®ions);
+}
+
+/* Serves the same data over multiple connections. */
+static int
+partitioning_can_multi_conn (void *handle)
+{
+ return 1;
+}
+
+/* Read data. */
+static int
+partitioning_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ while (count > 0) {
+ const struct region *region = find_region (®ions, offset);
+ size_t i, len;
+ ssize_t r;
+
+ /* Length to end of region. */
+ len = region->end - offset + 1;
+ if (len > count)
+ len = count;
+
+ switch (region->type) {
+ case region_file:
+ i = region->u.i;
+ assert (i < nr_files);
+ r = pread (files[i].fd, buf, len, offset - region->start);
+ if (r == -1) {
+ nbdkit_error ("pread: %s: %m", files[i].filename);
+ return -1;
+ }
+ if (r == 0) {
+ nbdkit_error ("pread: %s: unexpected end of file", files[i].filename);
+ return -1;
+ }
+ len = r;
+ break;
+
+ case region_data:
+ memcpy (buf, ®ion->u.data[offset - region->start], len);
+ break;
+
+ case region_zero:
+ memset (buf, 0, len);
+ break;
+ }
+
+ count -= len;
+ buf += len;
+ offset += len;
+ }
+
+ return 0;
+}
+
+/* Write data. */
+static int
+partitioning_pwrite (void *handle,
+ const void *buf, uint32_t count, uint64_t offset)
+{
+ while (count > 0) {
+ const struct region *region = find_region (®ions, offset);
+ size_t i, len;
+ ssize_t r;
+
+ /* Length to end of region. */
+ len = region->end - offset + 1;
+ if (len > count)
+ len = count;
+
+ switch (region->type) {
+ case region_file:
+ i = region->u.i;
+ assert (i < nr_files);
+ r = pwrite (files[i].fd, buf, len, offset - region->start);
+ if (r == -1) {
+ nbdkit_error ("pwrite: %s: %m", files[i].filename);
+ return -1;
+ }
+ len = r;
+ break;
+
+ case region_data:
+ /* You can only write same data as already present. */
+ if (memcmp (®ion->u.data[offset - region->start], buf, len) != 0) {
+ nbdkit_error ("attempt to change partition table of virtual disk");
+ errno = EIO;
+ return -1;
+ }
+ break;
+
+ case region_zero:
+ /* You can only write zeroes. */
+ if (!is_zero (buf, len)) {
+ nbdkit_error ("write non-zeroes to padding region");
+ errno = EIO;
+ return -1;
+ }
+ break;
+ }
+
+ count -= len;
+ buf += len;
+ offset += len;
+ }
+
+ return 0;
+}
+
+/* Flush. */
+static int
+partitioning_flush (void *handle)
+{
+ size_t i;
+
+ for (i = 0; i < nr_files; ++i) {
+ if (fdatasync (files[i].fd) == -1) {
+ nbdkit_error ("fdatasync: %m");
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "partitioning",
+ .version = PACKAGE_VERSION,
+ .load = partitioning_load,
+ .unload = partitioning_unload,
+ .config = partitioning_config,
+ .config_complete = partitioning_config_complete,
+ .config_help = partitioning_config_help,
+ .magic_config_key = "file",
+ .open = partitioning_open,
+ .get_size = partitioning_get_size,
+ .can_multi_conn = partitioning_can_multi_conn,
+ .pread = partitioning_pread,
+ .pwrite = partitioning_pwrite,
+ .flush = partitioning_flush,
+ /* In this plugin, errno is preserved properly along error return
+ * paths from failed system calls.
+ */
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <assert.h>
+
+#include <nbdkit-plugin.h>
+
+#include "isaligned.h"
+
+#include "regions.h"
+#include "virtual-disk.h"
+
+static int create_partition_table (void);
+
+/* Called once we have the list of filenames and have selected a
+ * partition type. This creates the virtual disk layout as a list of
+ * regions.
+ */
+int
+create_virtual_disk_layout (void)
+{
+ size_t i;
+
+ assert (nr_regions (®ions) == 0);
+ assert (nr_files > 0);
+ assert (primary == NULL);
+ assert (secondary == NULL);
+
+ /* Allocate the virtual partition table. */
+ if (parttype == PARTTYPE_MBR) {
+ primary = calloc (1, SECTOR_SIZE);
+ if (primary == NULL) {
+ nbdkit_error ("malloc: %m");
+ return -1;
+ }
+
+ if (nr_files > 4) {
+ /* The first 3 primary partitions will be real partitions, the
+ * 4th will be an extended partition, and so we need to store
+ * EBRs for nr_files-3 logical partitions.
+ */
+ ebr = malloc (sizeof (unsigned char *) * (nr_files-3));
+ if (ebr == NULL) {
+ nbdkit_error ("malloc: %m");
+ return -1;
+ }
+ for (i = 0; i < nr_files-3; ++i) {
+ ebr[i] = calloc (1, SECTOR_SIZE);
+ if (ebr[i] == NULL) {
+ nbdkit_error ("malloc: %m");
+ return -1;
+ }
+ }
+ }
+ }
+ else /* PARTTYPE_GPT */ {
+ /* Protective MBR + PT header + PTA = 2 + GPT_PTA_LBAs */
+ primary = calloc (2+GPT_PTA_LBAs, SECTOR_SIZE);
+ if (primary == NULL) {
+ nbdkit_error ("malloc: %m");
+ return -1;
+ }
+ /* Secondary PTA + PT secondary header = GPT_PTA_LBAs + 1 */
+ secondary = calloc (GPT_PTA_LBAs+1, SECTOR_SIZE);
+ if (secondary == NULL) {
+ nbdkit_error ("malloc: %m");
+ return -1;
+ }
+ }
+
+ /* Virtual primary partition table region at the start of the disk. */
+ if (parttype == PARTTYPE_MBR) {
+ if (append_region_len (®ions, "MBR",
+ SECTOR_SIZE, 0, 0,
+ region_data, primary) == -1)
+ return -1;
+ }
+ else /* PARTTYPE_GPT */ {
+ if (append_region_len (®ions, "GPT primary",
+ (2+GPT_PTA_LBAs) * SECTOR_SIZE, 0, 0,
+ region_data, primary) == -1)
+ return -1;
+ }
+
+ /* The partitions. */
+ for (i = 0; i < nr_files; ++i) {
+ uint64_t offset;
+
+ offset = virtual_size (®ions);
+ /* Because we add padding after each partition, this invariant
+ * must always be true.
+ */
+ assert (IS_ALIGNED (offset, SECTOR_SIZE));
+
+ /* Logical partitions are preceeded by an EBR. */
+ if (parttype == PARTTYPE_MBR && nr_files > 4 && i >= 3) {
+ if (append_region_len (®ions, "EBR",
+ SECTOR_SIZE, 0, 0,
+ region_data, ebr[i-3]) == -1)
+ return -1;
+ }
+
+ /* Create the partition region for this file.
+ * Make sure each partition is aligned for best performance.
+ * If the file size is not a multiple of SECTOR_SIZE then
+ * add a padding region at the end to round it up.
+ */
+ if (append_region_len (®ions, files[i].filename,
+ files[i].statbuf.st_size,
+ files[i].alignment, SECTOR_SIZE,
+ region_file, i) == -1)
+ return -1;
+ }
+
+ /* For GPT add the virtual secondary/backup partition table. */
+ if (parttype == PARTTYPE_GPT) {
+ if (append_region_len (®ions, "GPT secondary",
+ (GPT_PTA_LBAs+1) * SECTOR_SIZE, 0, 0,
+ region_data, secondary) == -1)
+ return -1;
+ }
+
+ if (partitioning_debug_regions) {
+ for (i = 0; i < nr_regions (®ions); ++i) {
+ const struct region *region = get_region (®ions, i);
+
+ nbdkit_debug ("region[%zu]: %" PRIx64 "-%" PRIx64 " type=%s",
+ i, region->start, region->end,
+ region->type == region_file ?
+ files[region->u.i].filename :
+ region->type == region_data ?
+ "data" : "zero");
+ }
+ }
+
+ /* We must have created some regions. */
+ assert (nr_regions (®ions) > 0);
+
+ /* Check the final alignment of all the partitions is the same as
+ * what was requested.
+ */
+ for (i = 0; i < nr_regions (®ions); ++i) {
+ const struct region *region = get_region (®ions, i);
+
+ if (region->type == region_file)
+ assert (IS_ALIGNED (region->start, files[region->u.i].alignment));
+ }
+
+ return create_partition_table ();
+}
+
+static int
+create_partition_table (void)
+{
+ /* The caller has already created the disk layout and allocated
+ * space in memory for the partition table.
+ */
+ assert (nr_regions (®ions) > 0);
+ assert (primary != NULL);
+ if (parttype == PARTTYPE_GPT)
+ assert (secondary != NULL);
+
+ if (parttype == PARTTYPE_MBR)
+ create_mbr_layout ();
+ else /* parttype == PARTTYPE_GPT */
+ create_gpt_layout ();
+
+ return 0;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_VIRTUAL_DISK_H
+#define NBDKIT_VIRTUAL_DISK_H
+
+#include <stdbool.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include "rounding.h"
+
+#include "gpt.h"
+#include "regions.h"
+
+#define SECTOR_SIZE UINT64_C(512)
+
+/* Maximum size of MBR disks. This is an approximation based on the
+ * known limit (2^32 sectors) and an estimate based on the amount of
+ * padding between partitions.
+ */
+#define MAX_MBR_DISK_SIZE (UINT32_MAX * SECTOR_SIZE - 5 * MAX_ALIGNMENT)
+
+/* For GPT, the number of entries in the partition table array (PTA),
+ * and the number of LBAs which the PTA occupies. The latter will be
+ * 32 if the number of files is <= GPT_MIN_PARTITIONS, which is the
+ * normal case.
+ */
+#define GPT_PTA_SIZE ROUND_UP (nr_files, GPT_MIN_PARTITIONS)
+#define GPT_PTA_LBAs (GPT_PTA_SIZE * GPT_PT_ENTRY_SIZE / SECTOR_SIZE)
+
+/* Maximum possible and default alignment between partitions. */
+#define MAX_ALIGNMENT (2048 * SECTOR_SIZE)
+#define DEFAULT_ALIGNMENT MAX_ALIGNMENT
+
+/* Default MBR partition ID and GPT partition type GUID. */
+#define DEFAULT_MBR_ID 0x83
+#define DEFAULT_TYPE_GUID "0FC63DAF-8483-4772-8E79-3D69D8477DE4"
+
+extern int partitioning_debug_regions;
+
+extern unsigned long alignment;
+extern int mbr_id;
+extern char type_guid[16];
+
+#define PARTTYPE_UNSET 0
+#define PARTTYPE_MBR 1
+#define PARTTYPE_GPT 2
+extern int parttype;
+
+/* A file supplied on the command line. */
+struct file {
+ const char *filename; /* file= supplied on the command line */
+ int fd;
+ struct stat statbuf;
+ char guid[16]; /* random GUID used for GPT */
+ unsigned long alignment; /* alignment of this partition */
+ int mbr_id; /* MBR ID of this partition */
+ char type_guid[16]; /* partition type GUID of this partition */
+};
+
+extern struct file *files;
+extern size_t nr_files;
+
+extern struct regions regions;
+extern unsigned char *primary, *secondary, **ebr;
+
+/* Main entry point called after files array has been populated. */
+extern int create_virtual_disk_layout (void);
+
+/* Parse a GPT GUID. Note that GPT GUIDs have peculiar
+ * characteristics which make them unlike general GUIDs.
+ */
+extern int parse_guid (const char *str, char *out)
+ __attribute__((__nonnull__ (1, 2)));
+
+/* Internal function for creating a single MBR PTE. The GPT code
+ * calls this for creating the protective MBR.
+ */
+extern void create_mbr_partition_table_entry (const struct region *,
+ bool bootable, int partition_id,
+ unsigned char *)
+ __attribute__((__nonnull__ (1, 4)));
+
+/* Create MBR or GPT layout. */
+extern void create_mbr_layout (void);
+extern void create_gpt_layout (void);
+
+#endif /* NBDKIT_VIRTUAL_DISK_H */
--- /dev/null
+# nbdkit
+# Copyright (C) 2017-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-pattern-plugin.pod
+
+plugin_LTLIBRARIES = nbdkit-pattern-plugin.la
+
+nbdkit_pattern_plugin_la_SOURCES = \
+ pattern.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_pattern_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include
+nbdkit_pattern_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_pattern_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-pattern-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-pattern-plugin.1: nbdkit-pattern-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2017-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+
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+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+=head1 NAME
+
+nbdkit-pattern-plugin - plugin to serve a fixed pattern of data for testing
+
+=head1 SYNOPSIS
+
+ nbdkit pattern size=SIZE
+
+=head1 DESCRIPTION
+
+C<nbdkit-pattern-plugin> is a plugin for L<nbdkit(1)> which serves a
+fixed pattern of data, read only. This is used for testing nbdkit
+filters and NBD clients.
+
+The fixed pattern is the offset, as a 64 bit big endian integer, every
+8 bytes. In hexadecimal this looks like:
+
+ offset data
+ 0000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08
+ 0010: 00 00 00 00 00 00 00 10 00 00 00 00 00 00 00 18
+ 0020: 00 00 00 00 00 00 00 20 00 00 00 00 00 00 00 28
+ ↗ └──────────┬──────────┘
+ byte at offset 0x28 │
+ │
+ 64 bit big endian int
+ encoding offset 0x28
+
+The size of the virtual disk must be specified using the C<size>
+parameter. If the size is not a multiple of 8 then the last 8 byte
+offset in the pattern is truncated.
+
+=head2 Largest possible size
+
+nbdkit itself limits plugins to S<2⁶³-1> bytes
+(S<decimal: 9223372036854775807>,
+S<hexadecimal: 0x7fff_ffff_ffff_ffff>).
+
+To test if NBD clients are free of bugs (not to mention nbdkit itself)
+you can use:
+
+ nbdkit pattern size=9223372036854775807
+
+Note this is too large for qemu to open.
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<size=>SIZE
+
+Specify the virtual size of the disk image.
+
+This parameter is required.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<nbdkit-data-plugin(1)>,
+L<nbdkit-full-plugin(1)>,
+L<nbdkit-null-plugin(1)>,
+L<nbdkit-offset-filter(1)>,
+L<nbdkit-random-plugin(1)>,
+L<nbdkit-zero-plugin(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <errno.h>
+#include <time.h>
+
+#define NBDKIT_API_VERSION 2
+#include <nbdkit-plugin.h>
+
+#include "byte-swapping.h"
+#include "minmax.h"
+
+/* The size of disk in bytes (initialized by size=<SIZE> parameter). */
+static int64_t size = 0;
+
+static int
+pattern_config (const char *key, const char *value)
+{
+ int64_t r;
+
+ if (strcmp (key, "size") == 0) {
+ r = nbdkit_parse_size (value);
+ if (r == -1)
+ return -1;
+ size = r;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+#define pattern_config_help \
+ "size=<SIZE> (required) Size of the backing disk"
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* Create the per-connection handle. */
+static void *
+pattern_open (int readonly)
+{
+ return NBDKIT_HANDLE_NOT_NEEDED;
+}
+
+/* Get the disk size. */
+static int64_t
+pattern_get_size (void *handle)
+{
+ return size;
+}
+
+/* Serves the same data over multiple connections. */
+static int
+pattern_can_multi_conn (void *handle)
+{
+ return 1;
+}
+
+/* Read data. */
+static int
+pattern_pread (void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ char *b = buf;
+ uint64_t d;
+ uint64_t o;
+ uint32_t n;
+
+ while (count > 0) {
+ d = htobe64 (offset & ~7);
+ o = offset & 7;
+ n = MIN (count, 8-o);
+ memcpy (b, (char *)&d + o, n);
+ b += 8-o;
+ offset += 8-o;
+ count -= n;
+ }
+
+ return 0;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "pattern",
+ .version = PACKAGE_VERSION,
+ .config = pattern_config,
+ .config_help = pattern_config_help,
+ .open = pattern_open,
+ .get_size = pattern_get_size,
+ .can_multi_conn = pattern_can_multi_conn,
+ .pread = pattern_pread,
+ /* In this plugin, errno is preserved properly along error return
+ * paths from failed system calls.
+ */
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = \
+ nbdkit-perl-plugin.pod \
+ example.pl
+
+if HAVE_PERL
+
+plugin_LTLIBRARIES = nbdkit-perl-plugin.la
+
+nbdkit_perl_plugin_la_SOURCES = \
+ perl.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_perl_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_perl_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS) \
+ $(PERL_CFLAGS) \
+ -I$(PERL_ARCHLIB)/CORE
+nbdkit_perl_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms \
+ $(PERL_LDOPTS)
+
+if HAVE_POD
+
+man_MANS = nbdkit-perl-plugin.3
+CLEANFILES += $(man_MANS)
+
+nbdkit-perl-plugin.3: nbdkit-perl-plugin.pod
+ $(PODWRAPPER) --section=3 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+
+endif
--- /dev/null
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+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
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+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
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+# * Redistributions in binary form must reproduce the above copyright
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+# * Neither the name of Red Hat nor the names of its contributors may be
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
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+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+
+maintainer-clean: maintainer-clean-am
+ -rm -f ./$(DEPDIR)/nbdkit_perl_plugin_la-perl.Plo
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-man uninstall-pluginLTLIBRARIES
+
+uninstall-man: uninstall-man3
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+ clean-generic clean-libtool clean-pluginLTLIBRARIES \
+ cscopelist-am ctags ctags-am distclean distclean-compile \
+ distclean-generic distclean-libtool distclean-tags distdir dvi \
+ dvi-am html html-am info info-am install install-am \
+ install-data install-data-am install-dvi install-dvi-am \
+ install-exec install-exec-am install-html install-html-am \
+ install-info install-info-am install-man install-man3 \
+ install-pdf install-pdf-am install-pluginLTLIBRARIES \
+ install-ps install-ps-am install-strip installcheck \
+ installcheck-am installdirs maintainer-clean \
+ maintainer-clean-generic mostlyclean mostlyclean-compile \
+ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+ tags tags-am uninstall uninstall-am uninstall-man \
+ uninstall-man3 uninstall-pluginLTLIBRARIES
+
+.PRECIOUS: Makefile
+
+
+@HAVE_PERL_TRUE@@HAVE_POD_TRUE@nbdkit-perl-plugin.3: nbdkit-perl-plugin.pod
+@HAVE_PERL_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=3 --man $@ \
+@HAVE_PERL_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_PERL_TRUE@@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+use strict;
+use POSIX ();
+
+# Example Perl plugin.
+#
+# This example can be freely used for any purpose.
+
+# Run it from the build directory like this:
+#
+# ./nbdkit -f -v perl ./plugins/perl/example.pl test1=foo test2=bar
+#
+# Or run it after installing nbdkit like this:
+#
+# nbdkit -f -v perl ./plugins/perl/example.pl test1=foo test2=bar
+#
+# The -f -v arguments are optional. They cause the server to stay in
+# the foreground and print debugging, which is useful when testing.
+#
+# You can connect to the server using guestfish or qemu, eg:
+#
+# guestfish --format=raw -a nbd://localhost
+# ><fs> run
+# ><fs> part-disk /dev/sda mbr
+# ><fs> mkfs ext2 /dev/sda1
+# ><fs> list-filesystems
+# ><fs> mount /dev/sda1 /
+# ><fs> [etc]
+
+# This is the string used to store the emulated disk (initially all
+# zero bytes). There is one disk per nbdkit instance, so if you
+# reconnect to the same server you should see the same disk. You
+# could also put this into the handle, so there would be a fresh disk
+# per handle.
+my $disk = "\0" x (1024*1024);
+
+# This just prints the extra command line parameters, but real plugins
+# should parse them and reject any unknown parameters.
+sub config
+{
+ my $key = shift;
+ my $value = shift;
+
+ print "$0: ignored parameter $key=$value\n";
+}
+
+sub open
+{
+ my $readonly = shift;
+
+ printf ("$0: open: readonly=%d\n", $readonly);
+
+ # You can return any Perl value from open, and the same Perl value
+ # will be passed as the first arg to the other callbacks [in the
+ # client connected phase]. In most cases it's convenient to use a
+ # hashref.
+ my $h = { readonly => $readonly };
+
+ return $h;
+}
+
+sub get_size
+{
+ my $h = shift;
+
+ return length ($disk);
+}
+
+sub pread
+{
+ my $h = shift;
+ my $count = shift;
+ my $offset = shift;
+
+ return substr ($disk, $offset, $count);
+}
+
+sub pwrite
+{
+ my $h = shift;
+ my $buf = shift;
+ my $count = length ($buf);
+ my $offset = shift;
+
+ substr ($disk, $offset, $count) = $buf;
+}
+
+sub zero
+{
+ my $h = shift;
+ my $count = shift;
+ my $offset = shift;
+ my $may_trim = shift;
+
+ if ($may_trim) {
+ substr ($disk, $offset, $count) = "\0" x $count;
+ } else {
+ Nbdkit::set_error(POSIX::EOPNOTSUPP);
+ die "fall back to pwrite";
+ }
+}
--- /dev/null
+=head1 NAME
+
+nbdkit-perl-plugin - nbdkit perl plugin
+
+=head1 SYNOPSIS
+
+ nbdkit perl /path/to/plugin.pl [arguments...]
+
+=head1 DESCRIPTION
+
+C<nbdkit-perl-plugin> is an embedded Perl interpreter for
+L<nbdkit(1)>, allowing you to write nbdkit plugins in Perl.
+
+=head2 If you have been given an nbdkit Perl plugin
+
+Assuming you have a Perl script which is an nbdkit plugin, you run it
+like this:
+
+ nbdkit perl /path/to/plugin.pl
+
+You may have to add further C<key=value> arguments to the command
+line. Read the Perl script to see if it requires any.
+
+=head1 WRITING A PERL NBDKIT PLUGIN
+
+For an example plugin written in Perl, see:
+L<https://github.com/libguestfs/nbdkit/blob/master/plugins/perl/example.pl>
+
+Broadly speaking, Perl nbdkit plugins work like C ones, so you should
+read L<nbdkit-plugin(3)> first.
+
+To write a Perl nbdkit plugin, you create a Perl file which contains
+at least the following required subroutines:
+
+ sub open
+ {
+ # see below
+ }
+ sub get_size
+ {
+ # see below
+ }
+ sub pread
+ {
+ # see below
+ }
+
+Note that the subroutines must have those literal names (like
+C<open>), because the C part looks up and calls those functions
+directly. You may want to include documentation and globals (eg. for
+storing global state). Also any top-level statements, C<BEGIN>
+statements, C<END> statements and so on are run when nbdkit starts up
+and shuts down, just like ordinary Perl.
+
+=head2 Executable script
+
+If you want you can make the script executable and include a "shebang"
+at the top:
+
+ #!/usr/sbin/nbdkit perl
+
+See also L<nbdkit(1)/Shebang scripts>.
+
+These scripts can also be installed in the C<$plugindir>. See
+L<nbdkit-plugin(3)/WRITING PLUGINS IN OTHER PROGRAMMING LANGUAGES>.
+
+=head2 Methods
+
+Your script has access to the following methods in the C<Nbdkit>
+package (in fact, attempting to C<use Nbdkit> will fail, the methods
+are already available):
+
+ Nbdkit::set_error($err);
+
+Record C<$err> as the reason you are about to throw an exception. C<$err>
+should correspond to usual errno values, where it may help to
+C<use POSIX()>.
+
+=head2 Exceptions
+
+Instead of returning error codes as in C, Perl callbacks should
+indicate problems by throwing Perl exceptions (ie. C<die>, C<croak>
+etc). The Perl error message is captured and printed by nbdkit.
+Remember to use C<Nbdkit::set_error> if you need to control which
+error is sent back to the client; if omitted, the client will see an
+error of C<EIO>.
+
+=head2 32 vs 64 bit
+
+It is likely that Perl plugins won't work well, or maybe won't work at
+all, on 32 bit platforms. This is simply because Perl doesn't have an
+easy way to use 64 bit integers on 32 bit platforms, and 64 bit
+integers (eg. file offsets, disk sizes) are required for many nbdkit
+operations.
+
+=head2 Perl callbacks
+
+This just documents the arguments to the callbacks in Perl, and any
+way that they differ from the C callbacks. In all other respects they
+work the same way as the C callbacks, so you should go and read
+L<nbdkit-plugin(3)>.
+
+=over 4
+
+=item C<dump_plugin>
+
+(Optional)
+
+There are no arguments or return value.
+
+=item C<config>
+
+(Optional)
+
+ sub config
+ {
+ my $key = shift;
+ my $value = shift;
+ # No return value.
+ }
+
+=item C<config_complete>
+
+(Optional)
+
+There are no arguments or return value.
+
+=item C<open>
+
+(Required)
+
+ sub open
+ {
+ my $readonly = shift;
+ my $handle = {};
+ return $handle;
+ }
+
+The C<readonly> flag is a boolean.
+
+You can return any Perl value as the handle. It is passed back to
+subsequent calls. It's usually convenient to use a hashref, since
+that lets you store arbitrary fields.
+
+=item C<close>
+
+(Optional)
+
+ sub close
+ {
+ my $handle = shift;
+ # No return value
+ }
+
+After C<close> returns, the reference count of the handle is
+decremented in the C part, which usually means that the handle and its
+contents will be garbage collected.
+
+=item C<get_size>
+
+(Required)
+
+ sub get_size
+ {
+ my $handle = shift;
+ my $i64 = .. the size of the disk ..;
+ return $i64;
+ }
+
+This returns the size of the disk. You can return any Perl object
+that evaluates to an integer.
+
+=item C<can_write>
+
+(Optional)
+
+ sub can_write
+ {
+ my $handle = shift;
+ my $bool = ...;
+ return $bool;
+ }
+
+Return a boolean indicating whether the disk is writable.
+
+=item C<can_flush>
+
+(Optional)
+
+ sub can_flush
+ {
+ my $handle = shift;
+ my $bool = ...;
+ return $bool;
+ }
+
+Return a boolean indicating whether flush can be performed.
+
+=item C<is_rotational>
+
+(Optional)
+
+ sub is_rotational
+ {
+ my $handle = shift;
+ my $bool = ...;
+ return $bool;
+ }
+
+Return a boolean indicating whether the disk is rotational.
+
+=item C<can_trim>
+
+(Optional)
+
+ sub can_trim
+ {
+ my $handle = shift;
+ my $bool = ...;
+ return $bool;
+ }
+
+Return a boolean indicating whether trim/discard can be performed.
+
+=item C<pread>
+
+(Required)
+
+ sub pread
+ {
+ my $handle = shift;
+ my $count = shift;
+ my $offset = shift;
+ # Construct a buffer of length $count bytes and return it.
+ return $buf;
+ }
+
+The body of your C<pread> function should construct a buffer of length
+(at least) C<$count> bytes. You should read C<$count> bytes from the
+disk starting at C<$offset>.
+
+NBD only supports whole reads, so your function should try to read the
+whole region (perhaps requiring a loop). If the read fails or is
+partial, your function should C<die>, optionally using
+C<Nbdkit::set_error> first.
+
+=item C<pwrite>
+
+(Optional)
+
+ sub pwrite
+ {
+ my $handle = shift;
+ my $buf = shift;
+ my $count = length ($buf);
+ my $offset = shift;
+ # No return value
+ }
+
+The body of your C<pwrite> function should write the C<$buf> string to
+the disk. You should write C<$count> bytes to the disk starting at
+C<$offset>.
+
+NBD only supports whole writes, so your function should try to write
+the whole region (perhaps requiring a loop). If the write fails or is
+partial, your function should C<die>, optionally using
+C<Nbdkit::set_error> first.
+
+=item C<flush>
+
+(Optional)
+
+ sub flush
+ {
+ my $handle = shift;
+ # No return value
+ }
+
+The body of your C<flush> function should do a L<sync(2)> or
+L<fdatasync(2)> or equivalent on the backing store.
+
+If there is an error, the function should call C<die>, optionally using
+C<Nbdkit::set_error> first.
+
+=item C<trim>
+
+(Optional)
+
+ sub trim
+ {
+ my $handle = shift;
+ my $count = shift;
+ my $offset = shift;
+ # No return value
+ }
+
+The body of your C<trim> function should "punch a hole" in the backing
+store.
+
+If there is an error, the function should call C<die>, optionally using
+C<Nbdkit::set_error> first.
+
+=item C<zero>
+
+(Optional)
+
+ sub zero
+ {
+ my $handle = shift;
+ my $count = shift;
+ my $offset = shift;
+ my $may_trim = shift;
+ # No return value
+ }
+
+The body of your C<zero> function should ensure that C<$count> bytes
+of the disk, starting at C<$offset>, will read back as zero. If
+C<$may_trim> is true, the operation may be optimized as a trim as long
+as subsequent reads see zeroes.
+
+NBD only supports whole writes, so your function should try to write
+the whole region (perhaps requiring a loop). If the write fails or is
+partial, your function should C<die>, optionally using
+C<Nbdkit::set_error> first. In particular, if you would like to
+automatically fall back to C<pwrite> (perhaps because there is nothing
+to optimize if C<$may_trim> is false), use
+C<Nbdkit::set_error(POSIX::EOPNOTSUPP)>.
+
+=back
+
+=head2 Missing callbacks
+
+=over 4
+
+=item Missing: C<load> and C<unload>
+
+These are not needed because you can just use regular Perl C<BEGIN>
+and C<END> constructs.
+
+=item Missing: C<name>, C<version>, C<longname>, C<description>,
+C<config_help>
+
+These are not yet supported.
+
+=back
+
+=head2 Threads
+
+The thread model for Perl callbacks currently cannot be set from Perl.
+It is hard-coded in the C part to
+C<NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS>. This may change or be
+settable in future.
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<perl(1)>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013-2018 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <XSUB.h>
+#include <EXTERN.h>
+#include <perl.h>
+
+#include <nbdkit-plugin.h>
+
+static PerlInterpreter *my_perl;
+static const char *script;
+
+static void
+perl_load (void)
+{
+ int argc = 1;
+ const char *argv[2] = { "nbdkit", NULL };
+
+ /* Full Perl interpreter initialization is deferred until we read
+ * the first config parameter (which MUST be "script").
+ */
+ PERL_SYS_INIT3 (&argc, (char ***) &argv, &environ);
+ my_perl = perl_alloc ();
+ if (!my_perl) {
+ nbdkit_error ("out of memory allocating Perl interpreter");
+ exit (EXIT_FAILURE);
+ }
+ perl_construct (my_perl);
+}
+
+static void
+perl_unload (void)
+{
+ if (my_perl != NULL) {
+ perl_destruct (my_perl);
+ perl_free (my_perl);
+ PERL_SYS_TERM ();
+ }
+}
+
+/* We use this function to test if the named callback is defined
+ * in the loaded Perl code.
+ */
+static int
+callback_defined (const char *perl_func_name)
+{
+ SV *ret;
+ char *cmd;
+
+ if (asprintf (&cmd, "defined &%s", perl_func_name) == -1) {
+ perror ("asprintf");
+ exit (EXIT_FAILURE);
+ }
+
+ ret = eval_pv (cmd, FALSE);
+ free (cmd);
+
+ return SvTRUE (ret);
+}
+
+/* Check for a Perl exception, and convert it to an nbdkit error. */
+static int
+check_perl_failure (void)
+{
+ SV *errsv = get_sv ("@", TRUE);
+
+ if (SvTRUE (errsv)) {
+ const char *err;
+ STRLEN n;
+ char *err_copy;
+
+ err = SvPV (errsv, n);
+
+ /* Need to chop off the final \n if there is one. The only way to
+ * do this is to copy the string.
+ */
+ err_copy = strndup (err, n);
+ if (err_copy == NULL) {
+ nbdkit_error ("malloc failure: original error: %s", err);
+ return -1;
+ }
+ if (n > 0 && err_copy[n-1] == '\n')
+ err_copy[n-1] = '\0';
+
+ nbdkit_error ("%s", err_copy);
+ free (err_copy);
+
+ return -1;
+ }
+
+ return 0;
+}
+
+static int last_error;
+
+XS(set_error)
+{
+ dXSARGS;
+ /* Is it worth adding error checking for bad arguments? */
+ if (items >= 1) {
+ last_error = SvIV (ST (0));
+ nbdkit_set_error (last_error);
+ }
+ XSRETURN_EMPTY;
+}
+
+EXTERN_C void boot_DynaLoader (pTHX_ CV *cv);
+
+static void
+xs_init (pTHX)
+{
+ char *file = __FILE__;
+ newXS ("DynaLoader::boot_DynaLoader", boot_DynaLoader, file);
+ newXS ("Nbdkit::set_error", set_error, file);
+}
+
+static void
+perl_dump_plugin (void)
+{
+ dSP;
+
+#ifdef PERL_VERSION_STRING
+ printf ("perl_version=%s\n", PERL_VERSION_STRING);
+#endif
+
+ if (script && callback_defined ("dump_plugin")) {
+ ENTER;
+ SAVETMPS;
+ PUSHMARK (SP);
+ PUTBACK;
+ call_pv ("dump_plugin", G_EVAL|G_VOID|G_DISCARD);
+ SPAGAIN;
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+ }
+}
+
+static int
+perl_config (const char *key, const char *value)
+{
+ if (!script) {
+ int argc = 2;
+ char *argv[3] = { "nbdkit", NULL, NULL };
+
+ /* The first parameter MUST be "script". */
+ if (strcmp (key, "script") != 0) {
+ nbdkit_error ("the first parameter must be "
+ "script=/path/to/perl/script.pl");
+ return -1;
+ }
+ script = value;
+
+ assert (my_perl);
+
+ /* Load the Perl script. */
+ argv[1] = (char *) script;
+ if (perl_parse (my_perl, xs_init, argc, argv, NULL) == -1) {
+ nbdkit_error ("%s: error parsing this script", script);
+ return -1;
+ }
+
+ /* Run the Perl script. Note that top-level definitions such as
+ * global variables don't work at all unless you do this.
+ */
+ if (perl_run (my_perl) == -1) {
+ nbdkit_error ("%s: error running this script", script);
+ return -1;
+ }
+
+ /* Minimal set of callbacks which are required (by nbdkit itself). */
+ if (!callback_defined ("open") ||
+ !callback_defined ("get_size") ||
+ !callback_defined ("pread")) {
+ nbdkit_error ("%s: one of the required callbacks "
+ "'open', 'get_size' or 'pread' "
+ "is not defined by this Perl script. "
+ "nbdkit requires these callbacks.", script);
+ return -1;
+ }
+ }
+ else if (callback_defined ("config")) {
+ dSP;
+
+ /* Other parameters are passed to the Perl .config callback. */
+ ENTER;
+ SAVETMPS;
+ PUSHMARK (SP);
+ XPUSHs (sv_2mortal (newSVpv (key, strlen (key))));
+ XPUSHs (sv_2mortal (newSVpv (value, strlen (value))));
+ PUTBACK;
+ call_pv ("config", G_EVAL|G_VOID|G_DISCARD);
+ SPAGAIN;
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ if (check_perl_failure () == -1)
+ return -1;
+ }
+ else {
+ /* Emulate what core nbdkit does if a config callback is NULL. */
+ nbdkit_error ("%s: this plugin does not need command line configuration",
+ script);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+perl_config_complete (void)
+{
+ dSP;
+
+ if (callback_defined ("config_complete")) {
+ ENTER;
+ SAVETMPS;
+ PUSHMARK (SP);
+ PUTBACK;
+ call_pv ("config_complete", G_EVAL|G_VOID|G_DISCARD);
+ SPAGAIN;
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+ if (check_perl_failure () == -1)
+ return -1;
+ }
+
+ return 0;
+}
+
+static void *
+perl_open (int readonly)
+{
+ SV *sv;
+ dSP;
+
+ /* We check in perl_config that this callback is defined. */
+ ENTER;
+ SAVETMPS;
+ PUSHMARK (SP);
+ XPUSHs (readonly ? &PL_sv_yes : &PL_sv_no);
+ PUTBACK;
+ call_pv ("open", G_EVAL|G_SCALAR);
+ SPAGAIN;
+ sv = newSVsv (POPs);
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ if (check_perl_failure () == -1)
+ return NULL;
+
+ nbdkit_debug ("open returns handle (SV *) = %p (type %d)",
+ sv, SvTYPE (sv));
+
+ return sv;
+}
+
+static void
+perl_close (void *handle)
+{
+ dSP;
+
+ nbdkit_debug ("close called with handle (SV *) = %p (type %d)",
+ handle, SvTYPE ((SV *) handle));
+
+ if (callback_defined ("close")) {
+ ENTER;
+ SAVETMPS;
+ PUSHMARK (SP);
+ XPUSHs (handle);
+ PUTBACK;
+ call_pv ("close", G_EVAL|G_VOID|G_DISCARD);
+ SPAGAIN;
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ check_perl_failure (); /* ignore return value */
+ }
+
+ /* Since nbdkit has closed (and forgotten) the handle, we can now
+ * drop its refcount.
+ */
+ SvREFCNT_dec ((SV *) handle);
+}
+
+static int64_t
+perl_get_size (void *handle)
+{
+ dSP;
+ SV *sv;
+ int64_t size;
+
+ /* We check in perl_config that this callback is defined. */
+ ENTER;
+ SAVETMPS;
+ PUSHMARK (SP);
+ XPUSHs (handle);
+ PUTBACK;
+ call_pv ("get_size", G_EVAL|G_SCALAR);
+ SPAGAIN;
+ /* For some reason, this only works if split into two separate statements: */
+ sv = POPs;
+ size = SvIV (sv);
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ if (check_perl_failure () == -1)
+ return -1;
+
+ nbdkit_debug ("get_size returned %" PRIi64, size);
+
+ return size;
+}
+
+static int
+perl_boolean (void *handle, const char *callback_name, const char *fn_name)
+{
+ dSP;
+ SV *sv;
+ int r;
+
+ if (callback_defined (callback_name)) {
+ /* If there's a Perl callback, call it. */
+ ENTER;
+ SAVETMPS;
+ PUSHMARK (SP);
+ XPUSHs (handle);
+ PUTBACK;
+ call_pv (callback_name, G_EVAL|G_SCALAR);
+ SPAGAIN;
+ sv = POPs;
+ r = SvIV (sv);
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ if (check_perl_failure () == -1)
+ return -1;
+
+ return r;
+ }
+ /* No Perl callback. If the function is defined, return 1. */
+ else if (fn_name && callback_defined (fn_name))
+ return 1;
+ else
+ return 0;
+}
+
+static int
+perl_can_write (void *handle)
+{
+ return perl_boolean (handle, "can_write", "write");
+}
+
+static int
+perl_can_flush (void *handle)
+{
+ return perl_boolean (handle, "can_flush", "flush");
+}
+
+static int
+perl_can_trim (void *handle)
+{
+ return perl_boolean (handle, "can_trim", "trim");
+}
+
+static int
+perl_is_rotational (void *handle)
+{
+ return perl_boolean (handle, "is_rotational", NULL);
+}
+
+static int
+perl_pread (void *handle, void *buf,
+ uint32_t count, uint64_t offset)
+{
+ dSP;
+ SV *sv;
+ const char *pbuf;
+ STRLEN len;
+ int ret = 0;
+
+ /* We check in perl_config that this callback is defined. */
+ ENTER;
+ SAVETMPS;
+ PUSHMARK (SP);
+ XPUSHs (handle);
+ XPUSHs (sv_2mortal (newSViv (count)));
+ XPUSHs (sv_2mortal (newSViv (offset)));
+ PUTBACK;
+ call_pv ("pread", G_EVAL|G_SCALAR);
+ SPAGAIN;
+ sv = POPs;
+ pbuf = SvPV (sv, len);
+ if (len < count) {
+ nbdkit_error ("buffer returned from pread is too small");
+ ret = -1;
+ }
+ else
+ memcpy (buf, pbuf, count);
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ if (check_perl_failure () == -1)
+ ret = -1;
+
+ return ret;
+}
+
+static int
+perl_pwrite (void *handle, const void *buf,
+ uint32_t count, uint64_t offset)
+{
+ dSP;
+
+ if (callback_defined ("pwrite")) {
+ ENTER;
+ SAVETMPS;
+ PUSHMARK (SP);
+ XPUSHs (handle);
+ XPUSHs (sv_2mortal (newSVpv (buf, count)));
+ XPUSHs (sv_2mortal (newSViv (offset)));
+ PUTBACK;
+ call_pv ("pwrite", G_EVAL|G_VOID|G_DISCARD);
+ SPAGAIN;
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ if (check_perl_failure () == -1)
+ return -1;
+
+ return 0;
+ }
+
+ nbdkit_error ("write not implemented");
+ return -1;
+}
+
+static int
+perl_zero (void *handle, uint32_t count, uint64_t offset, int may_trim)
+{
+ dSP;
+
+ if (callback_defined ("zero")) {
+ last_error = 0;
+ ENTER;
+ SAVETMPS;
+ PUSHMARK (SP);
+ XPUSHs (handle);
+ XPUSHs (sv_2mortal (newSViv (count)));
+ XPUSHs (sv_2mortal (newSViv (offset)));
+ XPUSHs (sv_2mortal (newSViv (may_trim)));
+ PUTBACK;
+ call_pv ("zero", G_EVAL|G_SCALAR);
+ SPAGAIN;
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ if (last_error == EOPNOTSUPP) {
+ /* When user requests this particular error, we want to
+ gracefully fall back, and to accomodate both a normal return
+ and an exception. */
+ nbdkit_debug ("zero requested falling back to pwrite");
+ return -1;
+ }
+ if (check_perl_failure () == -1)
+ return -1;
+
+ return 0;
+ }
+
+ nbdkit_debug ("zero falling back to pwrite");
+ nbdkit_set_error (EOPNOTSUPP);
+ return -1;
+}
+
+static int
+perl_flush (void *handle)
+{
+ dSP;
+
+ if (callback_defined ("flush")) {
+ ENTER;
+ SAVETMPS;
+ PUSHMARK (SP);
+ XPUSHs (handle);
+ PUTBACK;
+ call_pv ("flush", G_EVAL|G_VOID|G_DISCARD);
+ SPAGAIN;
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ if (check_perl_failure () == -1)
+ return -1;
+
+ return 0;
+ }
+
+ /* Ignore lack of flush callback in Perl, although probably nbdkit
+ * will never call this since .can_flush returns false.
+ */
+ return 0;
+}
+
+static int
+perl_trim (void *handle, uint32_t count, uint64_t offset)
+{
+ dSP;
+
+ if (callback_defined ("trim")) {
+ ENTER;
+ SAVETMPS;
+ PUSHMARK (SP);
+ XPUSHs (handle);
+ XPUSHs (sv_2mortal (newSViv (count)));
+ XPUSHs (sv_2mortal (newSViv (offset)));
+ PUTBACK;
+ call_pv ("trim", G_EVAL|G_VOID|G_DISCARD);
+ SPAGAIN;
+ PUTBACK;
+ FREETMPS;
+ LEAVE;
+
+ if (check_perl_failure () == -1)
+ return -1;
+
+ return 0;
+ }
+
+ /* Ignore lack of trim callback in Perl, although probably nbdkit
+ * will never call this since .can_trim returns false.
+ */
+ return 0;
+}
+
+#define perl_config_help \
+ "script=<FILENAME> (required) The Perl plugin to run.\n" \
+ "[other arguments may be used by the plugin that you load]"
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+
+static struct nbdkit_plugin plugin = {
+ .name = "perl",
+ .version = PACKAGE_VERSION,
+
+ .load = perl_load,
+ .unload = perl_unload,
+ .dump_plugin = perl_dump_plugin,
+
+ .config = perl_config,
+ .config_complete = perl_config_complete,
+ .config_help = perl_config_help,
+
+ .open = perl_open,
+ .close = perl_close,
+
+ .get_size = perl_get_size,
+ .can_write = perl_can_write,
+ .can_flush = perl_can_flush,
+ .is_rotational = perl_is_rotational,
+ .can_trim = perl_can_trim,
+
+ .pread = perl_pread,
+ .pwrite = perl_pwrite,
+ .flush = perl_flush,
+ .trim = perl_trim,
+ .zero = perl_zero,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# This linker script controls the visibility of symbols in plugins.
+# Plugins only need to export the "plugin_init" function and debug
+# flags.
+#
+# Use of this linker script is entirely optional. It's just for
+# hygiene.
+
+{
+ global:
+ plugin_init;
+ *_debug_*;
+
+ # Everything else is hidden.
+ local: *;
+};
--- /dev/null
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = \
+ nbdkit-python-plugin.pod \
+ example.py
+
+if HAVE_PYTHON
+
+plugin_LTLIBRARIES = nbdkit-python-plugin.la
+
+nbdkit_python_plugin_la_SOURCES = \
+ python.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_python_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_python_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS) \
+ $(PYTHON_CFLAGS)
+nbdkit_python_plugin_la_LIBADD = \
+ $(PYTHON_LIBS)
+nbdkit_python_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms \
+ $(PYTHON_LDFLAGS)
+
+if HAVE_POD
+
+man_MANS = nbdkit-python-plugin.3
+CLEANFILES += $(man_MANS)
+
+nbdkit-python-plugin.3: nbdkit-python-plugin.pod
+ $(PODWRAPPER) --section=3 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+
+endif
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+ fi; \
+ done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES) $(MANS)
+installdirs:
+ for dir in "$(DESTDIR)$(plugindir)" "$(DESTDIR)$(man3dir)"; do \
+ test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+ done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+ if test -z '$(STRIP)'; then \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ install; \
+ else \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
+
+clean-generic:
+ -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pluginLTLIBRARIES \
+ mostlyclean-am
+
+distclean: distclean-am
+ -rm -f ./$(DEPDIR)/nbdkit_python_plugin_la-python.Plo
+ -rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-man install-pluginLTLIBRARIES
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man: install-man3
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f ./$(DEPDIR)/nbdkit_python_plugin_la-python.Plo
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-man uninstall-pluginLTLIBRARIES
+
+uninstall-man: uninstall-man3
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+ clean-generic clean-libtool clean-pluginLTLIBRARIES \
+ cscopelist-am ctags ctags-am distclean distclean-compile \
+ distclean-generic distclean-libtool distclean-tags distdir dvi \
+ dvi-am html html-am info info-am install install-am \
+ install-data install-data-am install-dvi install-dvi-am \
+ install-exec install-exec-am install-html install-html-am \
+ install-info install-info-am install-man install-man3 \
+ install-pdf install-pdf-am install-pluginLTLIBRARIES \
+ install-ps install-ps-am install-strip installcheck \
+ installcheck-am installdirs maintainer-clean \
+ maintainer-clean-generic mostlyclean mostlyclean-compile \
+ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+ tags tags-am uninstall uninstall-am uninstall-man \
+ uninstall-man3 uninstall-pluginLTLIBRARIES
+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@@HAVE_PYTHON_TRUE@nbdkit-python-plugin.3: nbdkit-python-plugin.pod
+@HAVE_POD_TRUE@@HAVE_PYTHON_TRUE@ $(PODWRAPPER) --section=3 --man $@ \
+@HAVE_POD_TRUE@@HAVE_PYTHON_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@@HAVE_PYTHON_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+# Example Python plugin.
+#
+# This example can be freely used for any purpose.
+
+# Run it from the build directory like this:
+#
+# ./nbdkit -f -v python ./plugins/python/example.py test1=foo test2=bar
+#
+# Or run it after installing nbdkit like this:
+#
+# nbdkit -f -v python ./plugins/python/example.py test1=foo test2=bar
+#
+# The -f -v arguments are optional. They cause the server to stay in
+# the foreground and print debugging, which is useful when testing.
+#
+# You can connect to the server using guestfish or qemu, eg:
+#
+# guestfish --format=raw -a nbd://localhost
+# ><fs> run
+# ><fs> part-disk /dev/sda mbr
+# ><fs> mkfs ext2 /dev/sda1
+# ><fs> list-filesystems
+# ><fs> mount /dev/sda1 /
+# ><fs> [etc]
+
+import nbdkit
+import errno
+
+# This is the string used to store the emulated disk (initially all
+# zero bytes). There is one disk per nbdkit instance, so if you
+# reconnect to the same server you should see the same disk. You
+# could also put this into the handle, so there would be a fresh disk
+# per handle.
+disk = bytearray(1024 * 1024)
+
+
+# This just prints the extra command line parameters, but real plugins
+# should parse them and reject any unknown parameters.
+def config(key, value):
+ print("ignored parameter %s=%s" % (key, value))
+
+
+def open(readonly):
+ print("open: readonly=%d" % readonly)
+
+ # You can return any non-NULL Python object from open, and the
+ # same object will be passed as the first arg to the other
+ # callbacks [in the client connected phase].
+ return 1
+
+
+def get_size(h):
+ global disk
+ return len(disk)
+
+
+def pread(h, count, offset):
+ global disk
+ return disk[offset:offset+count]
+
+
+def pwrite(h, buf, offset):
+ global disk
+ end = offset + len(buf)
+ disk[offset:end] = buf
+
+
+def zero(h, count, offset, may_trim):
+ global disk
+ if may_trim:
+ disk[offset:offset+count] = bytearray(count)
+ else:
+ nbdkit.set_error(errno.EOPNOTSUPP)
+ raise Exception
--- /dev/null
+=head1 NAME
+
+nbdkit-python-plugin - nbdkit python plugin
+
+=head1 SYNOPSIS
+
+ nbdkit python /path/to/plugin.py [arguments...]
+
+=head1 DESCRIPTION
+
+C<nbdkit-python-plugin> is an embedded Python interpreter for
+L<nbdkit(1)>, allowing you to write nbdkit plugins in Python.
+
+=head2 If you have been given an nbdkit Python plugin
+
+Assuming you have a Python script which is an nbdkit plugin, you run it
+like this:
+
+ nbdkit python /path/to/plugin.py
+
+You may have to add further C<key=value> arguments to the command
+line. Read the Python script to see if it requires any.
+
+=head1 WRITING A PYTHON NBDKIT PLUGIN
+
+For an example plugin written in Python, see:
+L<https://github.com/libguestfs/nbdkit/blob/master/plugins/python/example.py>
+
+Broadly speaking, Python nbdkit plugins work like C ones, so you should
+read L<nbdkit-plugin(3)> first.
+
+To write a Python nbdkit plugin, you create a Python file which
+contains at least the following required functions (in the top level
+C<__main__> module):
+
+ def open(readonly):
+ # see below
+ def get_size(h):
+ # see below
+ def pread(h, count, offset):
+ # see below
+
+Note that the subroutines must have those literal names (like C<open>),
+because the C part looks up and calls those functions directly. You
+may want to include documentation and globals (eg. for storing global
+state). Any other top level statements are run when the script is
+loaded, just like ordinary Python.
+
+=head2 Python 2 and Python 3
+
+The Python plugin has to be compiled for either Python 2 or Python 3
+when building nbdkit. You can set the C<PYTHON> environment variable
+to the desired interpreter, otherwise nbdkit will use the interpreter
+called C<python> on the current C<$PATH>. For example:
+
+ PYTHON=/usr/bin/python3 ./configure
+
+To find out which version the Python plugin was compiled for, use the
+I<--dump-plugin> option, eg:
+
+ $ nbdkit python --dump-plugin
+ ...
+ python_version=3.7.0
+ python_pep_384_abi_version=3
+
+=head2 Executable script
+
+If you want you can make the script executable and include a "shebang"
+at the top:
+
+ #!/usr/sbin/nbdkit python
+
+See also L<nbdkit(1)/Shebang scripts>.
+
+These scripts can also be installed in the C<$plugindir>. See
+L<nbdkit-plugin(3)/WRITING PLUGINS IN OTHER PROGRAMMING LANGUAGES>.
+
+=head2 Methods
+
+Your script may use C<import nbdkit> to have access to the following
+methods in the C<nbdkit> module:
+
+ nbdkit.set_error(err)
+
+Record C<err> as the reason you are about to throw an exception. C<err>
+should correspond to usual errno values, where it may help to
+C<import errno>.
+
+=head2 Exceptions
+
+Python callbacks should throw exceptions to indicate errors. Remember
+to use C<nbdkit.set_error> if you need to control which error is sent
+back to the client; if omitted, the client will see an error of C<EIO>.
+
+=head2 Python callbacks
+
+This just documents the arguments to the callbacks in Python, and any
+way that they differ from the C callbacks. In all other respects they
+work the same way as the C callbacks, so you should go and read
+nbdkit-plugin(3).
+
+=over 4
+
+=item C<dump_plugin>
+
+(Optional)
+
+There are no arguments or return value.
+
+=item C<config>
+
+(Optional)
+
+ def config(key, value):
+ # no return value
+
+=item C<config_complete>
+
+(Optional)
+
+There are no arguments or return value.
+
+=item C<open>
+
+(Required)
+
+ def open(readonly):
+ # return handle
+
+You can return any non-NULL Python value as the handle. It is passed
+back in subsequent calls.
+
+=item C<close>
+
+(Optional)
+
+ def close(h):
+ # no return value
+
+After C<close> returns, the reference count of the handle is
+decremented in the C part, which usually means that the handle and its
+contents will be garbage collected.
+
+=item C<get_size>
+
+(Required)
+
+ def get_size(h):
+ # return the size of the disk
+
+=item C<can_write>
+
+(Optional)
+
+ def can_write(h):
+ # return a boolean
+
+=item C<can_flush>
+
+(Optional)
+
+ def can_flush(h):
+ # return a boolean
+
+=item C<is_rotational>
+
+(Optional)
+
+ def is_rotational(h):
+ # return a boolean
+
+=item C<can_trim>
+
+(Optional)
+
+ def can_trim(h):
+ # return a boolean
+
+=item C<pread>
+
+(Required)
+
+ def pread(h, count, offset):
+ # construct a bytearray of length count bytes and return it
+
+The body of your C<pread> function should construct a buffer of length
+(at least) C<count> bytes. You should read C<count> bytes from the
+disk starting at C<offset>.
+
+NBD only supports whole reads, so your function should try to read
+the whole region (perhaps requiring a loop). If the read fails or
+is partial, your function should throw an exception, optionally using
+C<nbdkit.set_error> first.
+
+=item C<pwrite>
+
+(Optional)
+
+ def pwrite(h, buf, offset):
+ length = len (buf)
+ # no return value
+
+The body of your C<pwrite> function should write the C<buf> string to
+the disk. You should write C<count> bytes to the disk starting at
+C<offset>.
+
+NBD only supports whole writes, so your function should try to
+write the whole region (perhaps requiring a loop). If the write
+fails or is partial, your function should throw an exception,
+ optionally using C<nbdkit.set_error> first.
+
+=item C<flush>
+
+(Optional)
+
+ def flush(h):
+ # no return value
+
+The body of your C<flush> function should do a L<sync(2)> or
+L<fdatasync(2)> or equivalent on the backing store.
+
+If the flush fails, your function should throw an exception, optionally
+using C<nbdkit.set_error> first.
+
+=item C<trim>
+
+(Optional)
+
+ def trim(h, count, offset):
+ # no return value
+
+The body of your C<trim> function should "punch a hole" in the
+backing store. If the trim fails, your function should throw an
+exception, optionally using C<nbdkit.set_error> first.
+
+=item C<zero>
+
+(Optional)
+
+ def zero(h, count, offset, may_trim):
+ # no return value
+
+The body of your C<zero> function should ensure that C<count> bytes
+of the disk, starting at C<offset>, will read back as zero. If
+C<may_trim> is true, the operation may be optimized as a trim as long
+as subsequent reads see zeroes.
+
+NBD only supports whole writes, so your function should try to
+write the whole region (perhaps requiring a loop). If the write
+fails or is partial, your function should throw an exception,
+optionally using C<nbdkit.set_error> first. In particular, if
+you would like to automatically fall back to C<pwrite> (perhaps
+because there is nothing to optimize if C<may_trim> is false),
+use C<nbdkit.set_error(errno.EOPNOTSUPP)>.
+
+=back
+
+=head2 Missing callbacks
+
+=over 4
+
+=item Missing: C<load> and C<unload>
+
+These are not needed because you can just use ordinary Python
+constructs.
+
+=item Missing: C<name>, C<version>, C<longname>, C<description>,
+C<config_help>
+
+These are not yet supported.
+
+=back
+
+=head2 Threads
+
+The thread model for Python callbacks currently cannot be set from
+Python. It is hard-coded in the C part to
+C<NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS>. This may change or be
+settable in future.
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<python(1)>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013-2018 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* This has to be included first, else definitions conflict with
+ * glibc header files. Python is broken.
+ */
+#define PY_SSIZE_T_CLEAN 1
+#include <Python.h>
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <nbdkit-plugin.h>
+
+/* XXX Apparently global state is technically wrong in Python 3, see:
+ *
+ * https://www.python.org/dev/peps/pep-3121/
+ *
+ * However it probably doesn't matter for nbdkit since we don't ever
+ * have multiple Python interpreters or multiple instances of the
+ * plugin in a single process.
+ */
+static const char *script;
+static PyObject *module;
+
+static int last_error;
+
+static PyObject *
+set_error (PyObject *self, PyObject *args)
+{
+ int err;
+
+ if (!PyArg_ParseTuple (args, "i", &err))
+ return NULL;
+ nbdkit_set_error (err);
+ last_error = err;
+ Py_RETURN_NONE;
+}
+
+static PyMethodDef NbdkitMethods[] = {
+ { "set_error", set_error, METH_VARARGS,
+ "Store an errno value prior to throwing an exception" },
+ { NULL }
+};
+
+/* Is a callback defined? */
+static int
+callback_defined (const char *name, PyObject **obj_rtn)
+{
+ PyObject *obj;
+
+ assert (script != NULL);
+ assert (module != NULL);
+
+ obj = PyObject_GetAttrString (module, name);
+ if (!obj) {
+ PyErr_Clear (); /* Clear the AttributeError from testing attr. */
+ return 0;
+ }
+ if (!PyCallable_Check (obj)) {
+ nbdkit_debug ("object %s isn't callable", name);
+ Py_DECREF (obj);
+ return 0;
+ }
+
+ if (obj_rtn != NULL)
+ *obj_rtn = obj;
+ else
+ Py_DECREF (obj);
+
+ return 1;
+}
+
+/* Convert bytes/str/unicode into a string. Caller must free. */
+static char *
+python_to_string (PyObject *str)
+{
+ if (str) {
+#ifdef HAVE_PYUNICODE_ASUTF8
+ if (PyUnicode_Check (str))
+ return strdup (PyUnicode_AsUTF8 (str));
+ else
+#endif
+#ifdef HAVE_PYSTRING_ASSTRING
+ if (PyString_Check (str))
+ return strdup (PyString_AsString (str));
+ else
+#endif
+ if (PyBytes_Check (str))
+ return strdup (PyBytes_AS_STRING (str));
+ }
+ return NULL;
+}
+
+/* This is the fallback in case we cannot get the full traceback. */
+static void
+print_python_error (const char *callback, PyObject *error)
+{
+ PyObject *error_str;
+ char *error_cstr = NULL;
+
+ error_str = PyObject_Str (error);
+ error_cstr = python_to_string (error_str);
+ nbdkit_error ("%s: %s: error: %s",
+ script, callback,
+ error_cstr ? error_cstr : "<unknown>");
+ Py_DECREF (error_str);
+ free (error_cstr);
+}
+
+/* Convert the Python traceback to a string and call nbdkit_error.
+ * https://stackoverflow.com/a/15907460/7126113
+ */
+static int
+print_python_traceback (const char *callback,
+ PyObject *type, PyObject *error, PyObject *traceback)
+{
+ PyObject *module_name, *traceback_module, *format_exception_fn, *rv,
+ *traceback_str;
+ char *traceback_cstr;
+
+#ifdef HAVE_PYSTRING_FROMSTRING
+ module_name = PyString_FromString ("traceback");
+#else
+ module_name = PyUnicode_FromString ("traceback");
+#endif
+ traceback_module = PyImport_Import (module_name);
+ Py_DECREF (module_name);
+
+ /* couldn't 'import traceback' */
+ if (traceback_module == NULL)
+ return -1;
+
+ format_exception_fn = PyObject_GetAttrString (traceback_module,
+ "format_exception");
+ if (format_exception_fn == NULL)
+ return -1;
+ if (!PyCallable_Check (format_exception_fn))
+ return -1;
+
+ rv = PyObject_CallFunctionObjArgs (format_exception_fn,
+ type, error, traceback, NULL);
+ traceback_str = PyObject_Str (rv);
+ Py_DECREF (rv);
+ traceback_cstr = python_to_string (traceback_str);
+ if (traceback_cstr == NULL) {
+ Py_DECREF (traceback_str);
+ return -1;
+ }
+
+ nbdkit_error ("%s: %s: error: %s",
+ script, callback,
+ traceback_cstr);
+ Py_DECREF (traceback_str);
+ free (traceback_cstr);
+
+ /* This means we succeeded in calling nbdkit_error. */
+ return 0;
+}
+
+static int
+check_python_failure (const char *callback)
+{
+ if (PyErr_Occurred ()) {
+ PyObject *type, *error, *traceback;
+
+ PyErr_Fetch (&type, &error, &traceback);
+ PyErr_NormalizeException (&type, &error, &traceback);
+
+ /* Try to print the full traceback. */
+ if (print_python_traceback (callback, type, error, traceback) == -1) {
+ /* Couldn't do that, so fall back to converting the Python error
+ * to a string.
+ */
+ print_python_error (callback, error);
+ }
+
+ /* In all cases this returns -1 to indicate that a Python error
+ * occurred.
+ */
+ return -1;
+ }
+ return 0;
+}
+
+#if PY_MAJOR_VERSION >= 3
+static struct PyModuleDef moduledef = {
+ PyModuleDef_HEAD_INIT,
+ "nbdkit",
+ "Module used to access nbdkit server API",
+ -1,
+ NbdkitMethods,
+ NULL,
+ NULL,
+ NULL,
+ NULL
+};
+#endif
+
+static PyMODINIT_FUNC
+create_nbdkit_module (void)
+{
+ PyObject *m;
+
+#if PY_MAJOR_VERSION >= 3
+ m = PyModule_Create (&moduledef);
+#else
+ m = Py_InitModule ("nbdkit", NbdkitMethods);
+#endif
+ if (m == NULL) {
+ nbdkit_error ("could not create the nbdkit API module");
+ exit (EXIT_FAILURE);
+ }
+#if PY_MAJOR_VERSION >= 3
+ return m;
+#endif
+}
+
+static void
+py_load (void)
+{
+ PyImport_AppendInittab ("nbdkit", create_nbdkit_module);
+ Py_Initialize ();
+}
+
+static void
+py_unload (void)
+{
+ Py_XDECREF (module);
+
+ Py_Finalize ();
+}
+
+static void
+py_dump_plugin (void)
+{
+ PyObject *fn;
+ PyObject *r;
+
+#ifdef PY_VERSION
+ printf ("python_version=%s\n", PY_VERSION);
+#endif
+
+#ifdef PYTHON_ABI_VERSION
+ printf ("python_pep_384_abi_version=%d\n", PYTHON_ABI_VERSION);
+#endif
+
+ if (script && callback_defined ("dump_plugin", &fn)) {
+ PyErr_Clear ();
+
+ r = PyObject_CallObject (fn, NULL);
+ Py_DECREF (fn);
+ Py_DECREF (r);
+ }
+}
+
+static int
+py_config (const char *key, const char *value)
+{
+ FILE *fp;
+ PyObject *modname;
+ PyObject *fn;
+ PyObject *r;
+
+ if (!script) {
+ /* The first parameter MUST be "script". */
+ if (strcmp (key, "script") != 0) {
+ nbdkit_error ("the first parameter must be "
+ "script=/path/to/python/script.py");
+ return -1;
+ }
+ script = value;
+
+ /* Load the Python script. */
+ fp = fopen (script, "r");
+ if (!fp) {
+ nbdkit_error ("%s: cannot open file: %m", script);
+ return -1;
+ }
+
+ if (PyRun_SimpleFileEx (fp, script, 1) == -1) {
+ nbdkit_error ("%s: error running this script", script);
+ return -1;
+ }
+ /* Note that because closeit flag == 1, fp is now closed. */
+
+ /* The script should define a module called __main__. */
+#ifdef HAVE_PYSTRING_FROMSTRING
+ modname = PyString_FromString ("__main__");
+#else
+ modname = PyUnicode_FromString ("__main__");
+#endif
+ module = PyImport_Import (modname);
+ Py_DECREF (modname);
+ if (!module) {
+ nbdkit_error ("%s: cannot find __main__ module", script);
+ return -1;
+ }
+
+ /* Minimal set of callbacks which are required (by nbdkit itself). */
+ if (!callback_defined ("open", NULL) ||
+ !callback_defined ("get_size", NULL) ||
+ !callback_defined ("pread", NULL)) {
+ nbdkit_error ("%s: one of the required callbacks "
+ "'open', 'get_size' or 'pread' "
+ "is not defined by this Python script. "
+ "nbdkit requires these callbacks.", script);
+ return -1;
+ }
+ }
+ else if (callback_defined ("config", &fn)) {
+ /* Other parameters are passed to the Python .config callback. */
+ PyErr_Clear ();
+
+ r = PyObject_CallFunction (fn, "ss", key, value);
+ Py_DECREF (fn);
+ if (check_python_failure ("config") == -1)
+ return -1;
+ Py_DECREF (r);
+ }
+ else {
+ /* Emulate what core nbdkit does if a config callback is NULL. */
+ nbdkit_error ("%s: this plugin does not need command line configuration",
+ script);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+py_config_complete (void)
+{
+ PyObject *fn;
+ PyObject *r;
+
+ if (callback_defined ("config_complete", &fn)) {
+ PyErr_Clear ();
+
+ r = PyObject_CallObject (fn, NULL);
+ Py_DECREF (fn);
+ if (check_python_failure ("config_complete") == -1)
+ return -1;
+ Py_DECREF (r);
+ }
+
+ return 0;
+}
+
+static void *
+py_open (int readonly)
+{
+ PyObject *fn;
+ PyObject *handle;
+
+ if (!callback_defined ("open", &fn)) {
+ nbdkit_error ("%s: missing callback: %s", script, "open");
+ return NULL;
+ }
+
+ PyErr_Clear ();
+
+ handle = PyObject_CallFunctionObjArgs (fn, readonly ? Py_True : Py_False,
+ NULL);
+ Py_DECREF (fn);
+ if (check_python_failure ("open") == -1)
+ return NULL;
+
+ return handle;
+}
+
+static void
+py_close (void *handle)
+{
+ PyObject *obj = handle;
+ PyObject *fn;
+ PyObject *r;
+
+ if (callback_defined ("close", &fn)) {
+ PyErr_Clear ();
+
+ r = PyObject_CallFunctionObjArgs (fn, obj, NULL);
+ Py_DECREF (fn);
+ check_python_failure ("close");
+ Py_XDECREF (r);
+ }
+
+ Py_DECREF (obj);
+}
+
+static int64_t
+py_get_size (void *handle)
+{
+ PyObject *obj = handle;
+ PyObject *fn;
+ PyObject *r;
+ int64_t ret;
+
+ if (!callback_defined ("get_size", &fn)) {
+ nbdkit_error ("%s: missing callback: %s", script, "get_size");
+ return -1;
+ }
+
+ PyErr_Clear ();
+
+ r = PyObject_CallFunctionObjArgs (fn, obj, NULL);
+ Py_DECREF (fn);
+ if (check_python_failure ("get_size") == -1)
+ return -1;
+
+ ret = PyLong_AsLongLong (r);
+ Py_DECREF (r);
+ if (check_python_failure ("PyLong_AsLongLong") == -1)
+ return -1;
+
+ return ret;
+}
+
+static int
+py_pread (void *handle, void *buf,
+ uint32_t count, uint64_t offset)
+{
+ PyObject *obj = handle;
+ PyObject *fn;
+ PyObject *r;
+
+ if (!callback_defined ("pread", &fn)) {
+ nbdkit_error ("%s: missing callback: %s", script, "pread");
+ return -1;
+ }
+
+ PyErr_Clear ();
+
+ r = PyObject_CallFunction (fn, "OiL", obj, count, offset, NULL);
+ Py_DECREF (fn);
+ if (check_python_failure ("pread") == -1)
+ return -1;
+
+ if (!PyByteArray_Check (r)) {
+ nbdkit_error ("%s: value returned from pread method is not a byte array",
+ script);
+ Py_DECREF (r);
+ return -1;
+ }
+
+ if (PyByteArray_Size (r) < count) {
+ nbdkit_error ("%s: byte array returned from pread is too small", script);
+ Py_DECREF (r);
+ return -1;
+ }
+
+ memcpy (buf, PyByteArray_AsString (r), count);
+ Py_DECREF (r);
+
+ return 0;
+}
+
+static int
+py_pwrite (void *handle, const void *buf,
+ uint32_t count, uint64_t offset)
+{
+ PyObject *obj = handle;
+ PyObject *fn;
+ PyObject *r;
+
+ if (callback_defined ("pwrite", &fn)) {
+ PyErr_Clear ();
+
+ r = PyObject_CallFunction (fn, "ONL", obj,
+ PyByteArray_FromStringAndSize (buf, count),
+ offset, NULL);
+ Py_DECREF (fn);
+ if (check_python_failure ("pwrite") == -1)
+ return -1;
+ Py_DECREF (r);
+ }
+ else {
+ nbdkit_error ("%s not implemented", "pwrite");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+py_flush (void *handle)
+{
+ PyObject *obj = handle;
+ PyObject *fn;
+ PyObject *r;
+
+ if (callback_defined ("flush", &fn)) {
+ PyErr_Clear ();
+
+ r = PyObject_CallFunctionObjArgs (fn, obj, NULL);
+ Py_DECREF (fn);
+ if (check_python_failure ("flush") == -1)
+ return -1;
+ Py_DECREF (r);
+ }
+ else {
+ nbdkit_error ("%s not implemented", "flush");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+py_trim (void *handle, uint32_t count, uint64_t offset)
+{
+ PyObject *obj = handle;
+ PyObject *fn;
+ PyObject *r;
+
+ if (callback_defined ("trim", &fn)) {
+ PyErr_Clear ();
+
+ r = PyObject_CallFunction (fn, "OiL", obj, count, offset, NULL);
+ Py_DECREF (fn);
+ if (check_python_failure ("trim") == -1)
+ return -1;
+ Py_DECREF (r);
+ }
+ else {
+ nbdkit_error ("%s not implemented", "trim");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+py_zero (void *handle, uint32_t count, uint64_t offset, int may_trim)
+{
+ PyObject *obj = handle;
+ PyObject *fn;
+ PyObject *args;
+ PyObject *r;
+
+ if (callback_defined ("zero", &fn)) {
+ PyErr_Clear ();
+
+ last_error = 0;
+ args = PyTuple_New (4);
+ Py_INCREF (obj); /* decremented by Py_DECREF (args) */
+ PyTuple_SetItem (args, 0, obj);
+ PyTuple_SetItem (args, 1, PyLong_FromUnsignedLongLong (count));
+ PyTuple_SetItem (args, 2, PyLong_FromUnsignedLongLong (offset));
+ PyTuple_SetItem (args, 3, PyBool_FromLong (may_trim));
+ r = PyObject_CallObject (fn, args);
+ Py_DECREF (fn);
+ Py_DECREF (args);
+ if (last_error == EOPNOTSUPP) {
+ /* When user requests this particular error, we want to
+ gracefully fall back, and to accomodate both a normal return
+ and an exception. */
+ nbdkit_debug ("zero requested falling back to pwrite");
+ Py_XDECREF (r);
+ PyErr_Clear ();
+ return -1;
+ }
+ if (check_python_failure ("zero") == -1)
+ return -1;
+ Py_DECREF (r);
+ return 0;
+ }
+
+ nbdkit_debug ("zero missing, falling back to pwrite");
+ nbdkit_set_error (EOPNOTSUPP);
+ return -1;
+}
+
+static int
+py_can_write (void *handle)
+{
+ PyObject *obj = handle;
+ PyObject *fn;
+ PyObject *r;
+ int ret;
+
+ if (callback_defined ("can_write", &fn)) {
+ PyErr_Clear ();
+
+ r = PyObject_CallFunctionObjArgs (fn, obj, NULL);
+ Py_DECREF (fn);
+ if (check_python_failure ("can_write") == -1)
+ return -1;
+ ret = r == Py_True;
+ Py_DECREF (r);
+ return ret;
+ }
+ /* No Python can_write callback, but there's a Python pwrite callback
+ * defined, so return 1. (In C modules, nbdkit would do this).
+ */
+ else if (callback_defined ("pwrite", NULL))
+ return 1;
+ else
+ return 0;
+}
+
+static int
+py_can_flush (void *handle)
+{
+ PyObject *obj = handle;
+ PyObject *fn;
+ PyObject *r;
+ int ret;
+
+ if (callback_defined ("can_flush", &fn)) {
+ PyErr_Clear ();
+
+ r = PyObject_CallFunctionObjArgs (fn, obj, NULL);
+ Py_DECREF (fn);
+ if (check_python_failure ("can_flush") == -1)
+ return -1;
+ ret = r == Py_True;
+ Py_DECREF (r);
+ return ret;
+ }
+ /* No Python can_flush callback, but there's a Python flush callback
+ * defined, so return 1. (In C modules, nbdkit would do this).
+ */
+ else if (callback_defined ("flush", NULL))
+ return 1;
+ else
+ return 0;
+}
+
+static int
+py_is_rotational (void *handle)
+{
+ PyObject *obj = handle;
+ PyObject *fn;
+ PyObject *r;
+ int ret;
+
+ if (callback_defined ("is_rotational", &fn)) {
+ PyErr_Clear ();
+
+ r = PyObject_CallFunctionObjArgs (fn, obj, NULL);
+ Py_DECREF (fn);
+ if (check_python_failure ("is_rotational") == -1)
+ return -1;
+ ret = r == Py_True;
+ Py_DECREF (r);
+ return ret;
+ }
+ else
+ return 0;
+}
+
+static int
+py_can_trim (void *handle)
+{
+ PyObject *obj = handle;
+ PyObject *fn;
+ PyObject *r;
+ int ret;
+
+ if (callback_defined ("can_trim", &fn)) {
+ PyErr_Clear ();
+
+ r = PyObject_CallFunctionObjArgs (fn, obj, NULL);
+ Py_DECREF (fn);
+ if (check_python_failure ("can_trim") == -1)
+ return -1;
+ ret = r == Py_True;
+ Py_DECREF (r);
+ return ret;
+ }
+ /* No Python can_trim callback, but there's a Python trim callback
+ * defined, so return 1. (In C modules, nbdkit would do this).
+ */
+ else if (callback_defined ("trim", NULL))
+ return 1;
+ else
+ return 0;
+}
+
+#define py_config_help \
+ "script=<FILENAME> (required) The Python plugin to run.\n" \
+ "[other arguments may be used by the plugin that you load]"
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+
+static struct nbdkit_plugin plugin = {
+ .name = "python",
+ .version = PACKAGE_VERSION,
+
+ .load = py_load,
+ .unload = py_unload,
+ .dump_plugin = py_dump_plugin,
+
+ .config = py_config,
+ .config_complete = py_config_complete,
+ .config_help = py_config_help,
+
+ .open = py_open,
+ .close = py_close,
+
+ .get_size = py_get_size,
+ .can_write = py_can_write,
+ .can_flush = py_can_flush,
+ .is_rotational = py_is_rotational,
+ .can_trim = py_can_trim,
+
+ .pread = py_pread,
+ .pwrite = py_pwrite,
+ .flush = py_flush,
+ .trim = py_trim,
+ .zero = py_zero,
+};
+
+NBDKIT_REGISTER_PLUGIN (plugin)
--- /dev/null
+# nbdkit
+# Copyright (C) 2017-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-random-plugin.pod
+
+plugin_LTLIBRARIES = nbdkit-random-plugin.la
+
+nbdkit_random_plugin_la_SOURCES = \
+ random.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_random_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/common/include \
+ -I$(top_srcdir)/include
+nbdkit_random_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_random_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-random-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-random-plugin.1: nbdkit-random-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2017-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
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+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
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+ else \
+ false; \
+ fi; \
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+am__installdirs = "$(DESTDIR)$(plugindir)" "$(DESTDIR)$(man1dir)"
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+@HAVE_POD_TRUE@nbdkit-random-plugin.1: nbdkit-random-plugin.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+=head1 NAME
+
+nbdkit-random-plugin - plugin to serve random data
+
+=head1 SYNOPSIS
+
+ nbdkit random size=SIZE [seed=SEED]
+
+=head1 DESCRIPTION
+
+C<nbdkit-random-plugin> is a plugin for L<nbdkit(1)> which serves
+random data, read only.
+
+The size of the virtual disk must be specified using the C<size>
+parameter. If you specify the C<seed> parameter then you will get the
+same random data over multiple runs with the same seed.
+
+The random data is generated using an I<insecure> method. This plugin
+is mainly good for testing NBD clients.
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<size=>SIZE
+
+Specify the virtual size of the disk image.
+
+This parameter is required.
+
+=item B<seed=>SEED
+
+Specify the random seed to get repeatable data over multiple runs.
+
+If not specified then a random seed is chosen.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<nbdkit-data-plugin(1)>,
+L<nbdkit-full-plugin(1)>,
+L<nbdkit-null-plugin(1)>,
+L<nbdkit-pattern-plugin(1)>,
+L<nbdkit-zero-plugin(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <errno.h>
+#include <time.h>
+
+#define NBDKIT_API_VERSION 2
+#include <nbdkit-plugin.h>
+
+#include "random.h"
+
+/* The size of disk in bytes (initialized by size=<SIZE> parameter). */
+static int64_t size = 0;
+
+/* Seed. */
+static uint32_t seed;
+
+static void
+random_load (void)
+{
+ /* Set the seed to a random-ish value. This is not meant to be
+ * cryptographically useful. It can be overridden using the seed
+ * parameter.
+ */
+ seed = time (NULL);
+}
+
+static int
+random_config (const char *key, const char *value)
+{
+ int64_t r;
+
+ if (strcmp (key, "seed") == 0) {
+ if (sscanf (value, "%" SCNu32, &seed) != 1) {
+ nbdkit_error ("could not parse seed parameter");
+ return -1;
+ }
+ }
+ else if (strcmp (key, "size") == 0) {
+ r = nbdkit_parse_size (value);
+ if (r == -1)
+ return -1;
+ size = r;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+#define random_config_help \
+ "size=<SIZE> (required) Size of the backing disk\n" \
+ "seed=<SEED> Random number generator seed"
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* Create the per-connection handle. */
+static void *
+random_open (int readonly)
+{
+ return NBDKIT_HANDLE_NOT_NEEDED;
+}
+
+/* Get the disk size. */
+static int64_t
+random_get_size (void *handle)
+{
+ return size;
+}
+
+/* Serves the same data over multiple connections. */
+static int
+random_can_multi_conn (void *handle)
+{
+ return 1;
+}
+
+/* Read data. */
+static int
+random_pread (void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ uint32_t i;
+ unsigned char *b = buf;
+ uint64_t s;
+
+ for (i = 0; i < count; ++i) {
+ /* We use nbdkit common/include/random.h to make random numbers.
+ *
+ * However we're not quite using it in the ordinary way. In order
+ * to be able to read any byte of data without needing to run the
+ * PRNG from the start, the random data is computed from the index
+ * and seed through three rounds of PRNG:
+ *
+ * index i PRNG(seed+i) -> PRNG -> PRNG -> mod 256 -> b[i]
+ * index i+1 PRNG(seed+i+1) -> PRNG -> PRNG -> mod 256 -> b[i+1]
+ * etc
+ */
+ struct random_state state;
+
+ xsrandom (seed + offset + i, &state);
+ xrandom (&state);
+ xrandom (&state);
+ s = xrandom (&state);
+ s &= 255;
+ b[i] = s;
+ }
+ return 0;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "random",
+ .version = PACKAGE_VERSION,
+ .load = random_load,
+ .config = random_config,
+ .config_help = random_config_help,
+ .open = random_open,
+ .get_size = random_get_size,
+ .can_multi_conn = random_can_multi_conn,
+ .pread = random_pread,
+ /* In this plugin, errno is preserved properly along error return
+ * paths from failed system calls.
+ */
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = \
+ nbdkit-ruby-plugin.pod \
+ example.rb
+
+if HAVE_RUBY
+
+plugin_LTLIBRARIES = nbdkit-ruby-plugin.la
+
+nbdkit_ruby_plugin_la_SOURCES = \
+ ruby.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_ruby_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_ruby_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS) \
+ $(RUBY_CFLAGS)
+nbdkit_ruby_plugin_la_LIBADD = \
+ $(RUBY_LIBS)
+nbdkit_ruby_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms \
+ $(RUBY_LDFLAGS)
+
+if HAVE_POD
+
+man_MANS = nbdkit-ruby-plugin.3
+CLEANFILES += $(man_MANS)
+
+nbdkit-ruby-plugin.3: nbdkit-ruby-plugin.pod
+ $(PODWRAPPER) --section=3 --man $@ \
+ --html $(top_builddir)/html/$@.html \
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+
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+
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+# Copyright (C) 2013-2018 Red Hat Inc.
+#
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+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
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+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
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+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
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+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
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+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@@HAVE_RUBY_TRUE@nbdkit-ruby-plugin.3: nbdkit-ruby-plugin.pod
+@HAVE_POD_TRUE@@HAVE_RUBY_TRUE@ $(PODWRAPPER) --section=3 --man $@ \
+@HAVE_POD_TRUE@@HAVE_RUBY_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@@HAVE_RUBY_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+# Example Ruby plugin.
+#
+# This example can be freely used for any purpose.
+
+# Run it from the build directory like this:
+#
+# ./nbdkit -f -v ruby ./plugins/ruby/example.rb test1=foo test2=bar
+#
+# Or run it after installing nbdkit like this:
+#
+# nbdkit -f -v ruby ./plugins/ruby/example.rb test1=foo test2=bar
+#
+# The -f -v arguments are optional. They cause the server to stay in
+# the foreground and print debugging, which is useful when testing.
+#
+# You can connect to the server using guestfish or qemu, eg:
+#
+# guestfish --format=raw -a nbd://localhost
+# ><fs> run
+# ><fs> part-disk /dev/sda mbr
+# ><fs> mkfs ext2 /dev/sda1
+# ><fs> list-filesystems
+# ><fs> mount /dev/sda1 /
+# ><fs> [etc]
+
+include Nbdkit
+
+$disk = "\0" * (1024 * 1024)
+
+def config(key, value)
+ printf("%s = %s\n", key, value)
+end
+
+def open(readonly)
+ # You can return any non-nil Ruby object as a handle. The
+ # same object is passed as the first argument to the other
+ # callbacks.
+ h = {}
+ return h
+end
+
+def get_size(h)
+ return $disk.bytesize
+end
+
+def pread(h, count, offset)
+ return $disk.byteslice(offset, count)
+end
+
+def pwrite(h, buf, offset)
+ # Hmm, is this using bytes or chars? XXX
+ $disk[offset, buf.length] = buf
+end
+
+def zero(h, count, offset, may_trim)
+ if may_trim
+ $disk[offset, count] = "\0" * count
+ else
+ set_error(Errno::EOPNOTSUPP)
+ raise "falling back to pwrite"
+ end
+end
--- /dev/null
+=head1 NAME
+
+nbdkit-ruby-plugin - nbdkit ruby plugin
+
+=head1 SYNOPSIS
+
+ nbdkit ruby /path/to/plugin.rb [arguments...]
+
+=head1 WARNING
+
+The Ruby language is fundamentally broken when it comes to embedding
+in a program which uses pthreads. This means you may see random
+"stack overflows" when using this plugin on some versions of Ruby but
+not others.
+
+For the whole sorry saga, see:
+L<https://redmine.ruby-lang.org/issues/2294>
+
+=head1 DESCRIPTION
+
+C<nbdkit-ruby-plugin> is an embedded Ruby interpreter for
+L<nbdkit(1)>, allowing you to write nbdkit plugins in Ruby.
+
+=head2 If you have been given an nbdkit Ruby plugin
+
+Assuming you have a Ruby script which is an nbdkit plugin, you run it
+like this:
+
+ nbdkit ruby /path/to/ruby.rb
+
+You may have to add further C<key=value> arguments to the command
+line. Read the Ruby script to see if it requires any.
+
+=head1 WRITING A RUBY NBDKIT PLUGIN
+
+For an example plugin written in Ruby, see:
+L<https://github.com/libguestfs/nbdkit/blob/master/plugins/ruby/example.rb>
+
+Broadly speaking, Ruby nbdkit plugins work like C ones, so you should
+read L<nbdkit-plugin(3)> first.
+
+To write a Ruby nbdkit plugin, you create a Ruby file which
+contains at least the following required functions:
+
+ def open(readonly)
+ # see below
+ end
+ def get_size(h)
+ # see below
+ end
+ def pread(h, count, offset)
+ # see below
+ end
+
+Note that the subroutines must have those literal names (like C<open>),
+because the C part looks up and calls those functions directly. You
+may want to include documentation and globals (eg. for storing global
+state). Any other top level statements are run when the script is
+loaded, just like ordinary Ruby.
+
+=head2 Executable script
+
+If you want you can make the script executable and include a "shebang"
+at the top:
+
+ #!/usr/sbin/nbdkit ruby
+
+See also L<nbdkit(1)/Shebang scripts>.
+
+These scripts can also be installed in the C<$plugindir>. See
+L<nbdkit-plugin(3)/WRITING PLUGINS IN OTHER PROGRAMMING LANGUAGES>.
+
+=head2 Methods
+
+Your script has access to the C<Nbdkit> module, with the following
+singleton methods:
+
+ Nbdkit.set_error(err)
+
+Record C<err> as the reason you are about to raise an
+exception. C<err> should either be a class that defines an C<Errno>
+constant (all of the subclasses of C<SystemCallError> in module
+C<Errno> have this property), an object that defines an C<errno>
+method with no arguments (all instances of C<SystemCallError> have
+this property), or an integer value corresponding to the usual errno
+values.
+
+=head2 Exceptions
+
+Ruby callbacks should throw exceptions to indicate errors. Remember
+to use C<Nbdkit.set_error> if you need to control which error is sent
+back to the client; if omitted, the client will see an error of C<EIO>.
+
+=head2 Ruby callbacks
+
+This just documents the arguments to the callbacks in Ruby, and any
+way that they differ from the C callbacks. In all other respects they
+work the same way as the C callbacks, so you should go and read
+L<nbdkit-plugin(3)>.
+
+=over 4
+
+=item C<dump_plugin>
+
+(Optional)
+
+There are no arguments or return value.
+
+=item C<config>
+
+(Optional)
+
+ def config(key, value)
+ # no return value
+ end
+
+=item C<config_complete>
+
+(Optional)
+
+There are no arguments or return value.
+
+=item C<open>
+
+(Required)
+
+ def open(readonly)
+ # return handle
+ end
+
+You can return any non-nil Ruby value as the handle. It is passed
+back in subsequent calls.
+
+=item C<close>
+
+(Optional)
+
+ def close(h)
+ # no return value
+ end
+
+=item C<get_size>
+
+(Required)
+
+ def get_size(h)
+ # return the size of the disk
+ end
+
+=item C<can_write>
+
+(Optional)
+
+ def can_write(h)
+ # return a boolean
+ end
+
+=item C<can_flush>
+
+(Optional)
+
+ def can_flush(h)
+ # return a boolean
+ end
+
+=item C<is_rotational>
+
+(Optional)
+
+ def is_rotational(h)
+ # return a boolean
+ end
+
+=item C<can_trim>
+
+(Optional)
+
+ def can_trim(h)
+ # return a boolean
+ end
+
+=item C<pread>
+
+(Required)
+
+ def pread(h, count, offset)
+ # construct a string of length count bytes and return it
+ end
+
+The body of your C<pread> function should construct a string of length
+(at least) C<count> bytes. You should read C<count> bytes from the
+disk starting at C<offset>.
+
+NBD only supports whole reads, so your function should try to read
+the whole region (perhaps requiring a loop). If the read fails or
+is partial, your function should throw an exception, optionally using
+C<Nbdkit.set_error> first.
+
+=item C<pwrite>
+
+(Optional)
+
+ def pwrite(h, buf, offset)
+ length = buf.length
+ # no return value
+ end
+
+The body of your C<pwrite> function should write the C<buf> string to
+the disk. You should write C<count> bytes to the disk starting at
+C<offset>.
+
+NBD only supports whole writes, so your function should try to
+write the whole region (perhaps requiring a loop). If the write
+fails or is partial, your function should throw an exception, optionally
+using C<Nbdkit.set_error> first.
+
+=item C<flush>
+
+(Optional)
+
+ def flush(h)
+ # no return value
+ end
+
+The body of your C<flush> function should do a L<sync(2)> or
+L<fdatasync(2)> or equivalent on the backing store.
+
+If the flush fails, your function should throw an exception, optionally
+using C<Nbdkit.set_error> first.
+
+=item C<trim>
+
+(Optional)
+
+ def trim(h, count, offset)
+ # no return value
+ end
+
+The body of your C<trim> function should "punch a hole" in the
+backing store. If the trim fails, your function should throw an
+exception, optionally using C<Nbdkit.set_error> first.
+
+=item C<zero>
+
+(Optional)
+
+ def zero(h, count, offset, may_trim)
+ # no return value
+
+The body of your C<zero> function should ensure that C<count> bytes
+of the disk, starting at C<offset>, will read back as zero. If
+C<may_trim> is true, the operation may be optimized as a trim as long
+as subsequent reads see zeroes.
+
+NBD only supports whole writes, so your function should try to
+write the whole region (perhaps requiring a loop). If the write
+fails or is partial, your function should throw an exception,
+optionally using C<Nbdkit.set_error> first. In particular, if
+you would like to automatically fall back to C<pwrite> (perhaps
+because there is nothing to optimize if C<may_trim> is false),
+use C<Nbdkit.set_error(Errno::EOPNOTSUPP)>.
+
+=back
+
+=head2 Missing callbacks
+
+=over 4
+
+=item Missing: C<load> and C<unload>
+
+These are not needed because you can just use ordinary Ruby
+constructs.
+
+=item Missing: C<name>, C<version>, C<longname>, C<description>,
+C<config_help>
+
+These are not yet supported.
+
+=back
+
+=head2 Threads
+
+The thread model for Ruby callbacks currently cannot be set from Ruby.
+It is hard-coded in the C part to
+C<NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS>. This may change or be
+settable in future.
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<ruby(1)>.
+
+=head1 AUTHORS
+
+Eric Blake
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013-2018 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <nbdkit-plugin.h>
+
+#include <ruby.h>
+#ifdef HAVE_RUBY_VERSION_H
+#include <ruby/version.h>
+#endif
+
+static VALUE nbdkit_module = Qnil;
+static int last_error;
+
+static VALUE
+set_error (VALUE self, VALUE arg)
+{
+ int err;
+ VALUE v;
+
+ if (TYPE(arg) == T_CLASS) {
+ v = rb_const_get (arg, rb_intern ("Errno"));
+ err = NUM2INT (v);
+ } else if (TYPE (arg) == T_OBJECT) {
+ v = rb_funcall (arg, rb_intern ("errno"), 0);
+ err = NUM2INT (v);
+ } else {
+ err = NUM2INT (arg);
+ }
+ last_error = err;
+ nbdkit_set_error (err);
+ return Qnil;
+}
+
+static void
+plugin_rb_load (void)
+{
+ RUBY_INIT_STACK;
+ ruby_init ();
+ ruby_init_loadpath ();
+
+ nbdkit_module = rb_define_module ("Nbdkit");
+ rb_define_module_function (nbdkit_module, "set_error", set_error, 1);
+}
+
+/* https://stackoverflow.com/questions/11086549/how-to-rb-protect-everything-in-ruby */
+#define MAX_ARGS 16
+struct callback_data {
+ VALUE receiver; /* object being called */
+ ID method_id; /* method on object being called */
+ int argc; /* number of args */
+ VALUE argv[MAX_ARGS]; /* list of args */
+};
+
+static VALUE
+callback_dispatch (VALUE datav)
+{
+ struct callback_data *data = (struct callback_data *) datav;
+ return rb_funcall2 (data->receiver, data->method_id, data->argc, data->argv);
+}
+
+enum exception_class {
+ NO_EXCEPTION = 0,
+ EXCEPTION_NO_METHOD_ERROR,
+ EXCEPTION_OTHER,
+};
+
+static VALUE
+funcall2 (VALUE receiver, ID method_id, int argc, volatile VALUE *argv,
+ enum exception_class *exception_happened)
+{
+ struct callback_data data;
+ size_t i, len;
+ int state = 0;
+ volatile VALUE ret, exn, message, backtrace, b;
+
+ assert (argc <= MAX_ARGS);
+
+ data.receiver = receiver;
+ data.method_id = method_id;
+ data.argc = argc;
+ for (i = 0; i < argc; ++i)
+ data.argv[i] = argv[i];
+
+ ret = rb_protect (callback_dispatch, (VALUE) &data, &state);
+ if (state) {
+ /* An exception was thrown. Get the per-thread exception. */
+ exn = rb_errinfo ();
+
+ /* We treat NoMethodError specially. */
+ if (rb_obj_is_kind_of (exn, rb_eNoMethodError)) {
+ if (exception_happened)
+ *exception_happened = EXCEPTION_NO_METHOD_ERROR;
+ }
+ else {
+ if (exception_happened)
+ *exception_happened = EXCEPTION_OTHER;
+
+ /* Print the exception. */
+ message = rb_funcall (exn, rb_intern ("to_s"), 0);
+ nbdkit_error ("ruby: %s", StringValueCStr (message));
+
+ /* Try to print the backtrace (a list of strings) if it exists. */
+ backtrace = rb_funcall (exn, rb_intern ("backtrace"), 0);
+ if (! NIL_P (backtrace)) {
+ len = RARRAY_LEN (backtrace);
+ for (i = 0; i < len; ++i) {
+ b = rb_ary_entry (backtrace, i);
+ nbdkit_error ("ruby: frame #%zu %s", i, StringValueCStr (b));
+ }
+ }
+ }
+
+ /* Reset the current thread exception. */
+ rb_set_errinfo (Qnil);
+ return Qnil;
+ }
+ else {
+ if (exception_happened)
+ *exception_happened = NO_EXCEPTION;
+ return ret;
+ }
+}
+
+static const char *script = NULL;
+static void *code = NULL;
+
+static void
+plugin_rb_unload (void)
+{
+ if (ruby_cleanup (0) != 0)
+ nbdkit_error ("ruby_cleanup failed");
+}
+
+static void
+plugin_rb_dump_plugin (void)
+{
+#ifdef RUBY_API_VERSION_MAJOR
+ printf ("ruby_api_version=%d", RUBY_API_VERSION_MAJOR);
+#ifdef RUBY_API_VERSION_MINOR
+ printf (".%d", RUBY_API_VERSION_MINOR);
+#ifdef RUBY_API_VERSION_TEENY
+ printf (".%d", RUBY_API_VERSION_TEENY);
+#endif
+#endif
+ printf ("\n");
+#endif
+
+ if (!script)
+ return;
+
+ assert (code != NULL);
+
+ (void) funcall2 (Qnil, rb_intern ("dump_plugin"), 0, NULL, NULL);
+}
+
+static int
+plugin_rb_config (const char *key, const char *value)
+{
+ /* The first parameter must be "script". */
+ if (!script) {
+ int state;
+
+ if (strcmp (key, "script") != 0) {
+ nbdkit_error ("the first parameter must be script=/path/to/ruby/script.rb");
+ return -1;
+ }
+ script = value;
+
+ nbdkit_debug ("ruby: loading script %s", script);
+
+ /* Load the Ruby script into the interpreter. */
+ const char *options[] = { "--", script };
+ code = ruby_options (sizeof options / sizeof options[0],
+ (char **) options);
+
+ /* Check if we managed to compile the Ruby script to code. */
+ if (!ruby_executable_node (code, &state)) {
+ nbdkit_error ("could not compile ruby script (%s, state=%d)",
+ script, state);
+ return -1;
+ }
+
+ /* Execute the Ruby script. */
+ state = ruby_exec_node (code);
+ if (state) {
+ nbdkit_error ("could not execute ruby script (%s, state=%d)",
+ script, state);
+ return -1;
+ }
+
+ return 0;
+ }
+ else {
+ volatile VALUE argv[2];
+ enum exception_class exception_happened;
+
+ argv[0] = rb_str_new2 (key);
+ argv[1] = rb_str_new2 (value);
+ (void) funcall2 (Qnil, rb_intern ("config"), 2, argv, &exception_happened);
+ if (exception_happened == EXCEPTION_NO_METHOD_ERROR) {
+ /* No config method, emulate what core nbdkit does if the
+ * config callback is NULL.
+ */
+ nbdkit_error ("%s: this plugin does not need command line configuration",
+ script);
+ return -1;
+ }
+ else if (exception_happened == EXCEPTION_OTHER)
+ return -1;
+
+ return 0;
+ }
+}
+
+static int
+plugin_rb_config_complete (void)
+{
+ enum exception_class exception_happened;
+
+ if (!script) {
+ nbdkit_error ("the first parameter must be script=/path/to/ruby/script.rb");
+ return -1;
+ }
+
+ assert (code != NULL);
+
+ (void) funcall2 (Qnil, rb_intern ("config_complete"), 0, NULL,
+ &exception_happened);
+ if (exception_happened == EXCEPTION_NO_METHOD_ERROR)
+ return 0; /* no config_complete method defined, ignore */
+ else if (exception_happened == EXCEPTION_OTHER)
+ return -1;
+
+ return 0;
+}
+
+static void *
+plugin_rb_open (int readonly)
+{
+ volatile VALUE argv[1];
+ volatile VALUE rv;
+ enum exception_class exception_happened;
+
+ argv[0] = readonly ? Qtrue : Qfalse;
+ rv = funcall2 (Qnil, rb_intern ("open"), 1, argv, &exception_happened);
+ if (exception_happened == EXCEPTION_NO_METHOD_ERROR) {
+ nbdkit_error ("%s: missing callback: %s", script, "open");
+ return NULL;
+ }
+ else if (exception_happened == EXCEPTION_OTHER)
+ return NULL;
+
+ return (void *) rv;
+}
+
+static void
+plugin_rb_close (void *handle)
+{
+ volatile VALUE argv[1];
+
+ argv[0] = (VALUE) handle;
+ (void) funcall2 (Qnil, rb_intern ("close"), 1, argv, NULL);
+ /* OK to ignore exceptions here, if they are important then an error
+ * was printed already.
+ */
+}
+
+static int64_t
+plugin_rb_get_size (void *handle)
+{
+ volatile VALUE argv[1];
+ volatile VALUE rv;
+ enum exception_class exception_happened;
+
+ argv[0] = (VALUE) handle;
+ rv = funcall2 (Qnil, rb_intern ("get_size"), 1, argv, &exception_happened);
+ if (exception_happened == EXCEPTION_NO_METHOD_ERROR) {
+ nbdkit_error ("%s: missing callback: %s", script, "get_size");
+ return -1;
+ }
+ else if (exception_happened == EXCEPTION_OTHER)
+ return -1;
+
+ return NUM2ULL (rv);
+}
+
+static int
+plugin_rb_pread (void *handle, void *buf,
+ uint32_t count, uint64_t offset)
+{
+ volatile VALUE argv[3];
+ volatile VALUE rv;
+ enum exception_class exception_happened;
+
+ argv[0] = (VALUE) handle;
+ argv[1] = ULL2NUM (count);
+ argv[2] = ULL2NUM (offset);
+ rv = funcall2 (Qnil, rb_intern ("pread"), 3, argv, &exception_happened);
+ if (exception_happened == EXCEPTION_NO_METHOD_ERROR) {
+ nbdkit_error ("%s: missing callback: %s", script, "pread");
+ return -1;
+ }
+ else if (exception_happened == EXCEPTION_OTHER)
+ return -1;
+
+ if (RSTRING_LEN (rv) < count) {
+ nbdkit_error ("%s: byte array returned from pread is too small",
+ script);
+ return -1;
+ }
+
+ memcpy (buf, RSTRING_PTR (rv), count);
+ return 0;
+}
+
+static int
+plugin_rb_pwrite (void *handle, const void *buf,
+ uint32_t count, uint64_t offset)
+{
+ volatile VALUE argv[3];
+ enum exception_class exception_happened;
+
+ argv[0] = (VALUE) handle;
+ argv[1] = rb_str_new (buf, count);
+ argv[2] = ULL2NUM (offset);
+ (void) funcall2 (Qnil, rb_intern ("pwrite"), 3, argv, &exception_happened);
+ if (exception_happened == EXCEPTION_NO_METHOD_ERROR) {
+ nbdkit_error ("%s: missing callback: %s", script, "pwrite");
+ return -1;
+ }
+ else if (exception_happened == EXCEPTION_OTHER)
+ return -1;
+
+ return 0;
+}
+
+static int
+plugin_rb_flush (void *handle)
+{
+ volatile VALUE argv[1];
+ enum exception_class exception_happened;
+
+ argv[0] = (VALUE) handle;
+ (void) funcall2 (Qnil, rb_intern ("flush"), 1, argv, &exception_happened);
+ if (exception_happened == EXCEPTION_NO_METHOD_ERROR) {
+ nbdkit_error ("%s: not implemented: %s", script, "flush");
+ return -1;
+ }
+ else if (exception_happened == EXCEPTION_OTHER)
+ return -1;
+
+ return 0;
+}
+
+static int
+plugin_rb_trim (void *handle, uint32_t count, uint64_t offset)
+{
+ volatile VALUE argv[3];
+ enum exception_class exception_happened;
+
+ argv[0] = (VALUE) handle;
+ argv[1] = ULL2NUM (count);
+ argv[2] = ULL2NUM (offset);
+ (void) funcall2 (Qnil, rb_intern ("trim"), 3, argv, &exception_happened);
+ if (exception_happened == EXCEPTION_NO_METHOD_ERROR) {
+ nbdkit_error ("%s: not implemented: %s", script, "trim");
+ return -1;
+ }
+ else if (exception_happened == EXCEPTION_OTHER)
+ return -1;
+
+ return 0;
+}
+
+static int
+plugin_rb_zero (void *handle, uint32_t count, uint64_t offset, int may_trim)
+{
+ volatile VALUE argv[4];
+ enum exception_class exception_happened;
+
+ argv[0] = (VALUE) handle;
+ argv[1] = ULL2NUM (count);
+ argv[2] = ULL2NUM (offset);
+ argv[3] = may_trim ? Qtrue : Qfalse;
+ last_error = 0;
+ (void) funcall2 (Qnil, rb_intern ("zero"), 4, argv, &exception_happened);
+ if (last_error == EOPNOTSUPP ||
+ exception_happened == EXCEPTION_NO_METHOD_ERROR) {
+ nbdkit_debug ("zero falling back to pwrite");
+ nbdkit_set_error (EOPNOTSUPP);
+ return -1;
+ }
+ else if (exception_happened == EXCEPTION_OTHER)
+ return -1;
+
+ return 0;
+}
+
+static int
+plugin_rb_can_write (void *handle)
+{
+ volatile VALUE argv[1];
+ volatile VALUE rv;
+ enum exception_class exception_happened;
+
+ argv[0] = (VALUE) handle;
+ rv = funcall2 (Qnil, rb_intern ("can_write"), 1, argv, &exception_happened);
+ if (exception_happened == EXCEPTION_NO_METHOD_ERROR)
+ /* Fall back to checking if the pwrite method exists. */
+ rv = rb_funcall (Qnil, rb_intern ("respond_to?"),
+ 2, ID2SYM (rb_intern ("pwrite")), Qtrue);
+ else if (exception_happened == EXCEPTION_OTHER)
+ return -1;
+
+ return RTEST (rv);
+}
+
+static int
+plugin_rb_can_flush (void *handle)
+{
+ volatile VALUE argv[1];
+ volatile VALUE rv;
+ enum exception_class exception_happened;
+
+ argv[0] = (VALUE) handle;
+ rv = funcall2 (Qnil, rb_intern ("can_flush"), 1, argv, &exception_happened);
+ if (exception_happened == EXCEPTION_NO_METHOD_ERROR)
+ /* Fall back to checking if the flush method exists. */
+ rv = rb_funcall (Qnil, rb_intern ("respond_to?"),
+ 2, ID2SYM (rb_intern ("flush")), Qtrue);
+ else if (exception_happened == EXCEPTION_OTHER)
+ return -1;
+
+ return RTEST (rv);
+}
+
+static int
+plugin_rb_is_rotational (void *handle)
+{
+ volatile VALUE argv[1];
+ volatile VALUE rv;
+ enum exception_class exception_happened;
+
+ argv[0] = (VALUE) handle;
+ rv = funcall2 (Qnil, rb_intern ("is_rotational"), 1, argv,
+ &exception_happened);
+ if (exception_happened == EXCEPTION_NO_METHOD_ERROR)
+ return 0;
+ else if (exception_happened == EXCEPTION_OTHER)
+ return -1;
+
+ return RTEST (rv);
+}
+
+static int
+plugin_rb_can_trim (void *handle)
+{
+ volatile VALUE argv[1];
+ volatile VALUE rv;
+ enum exception_class exception_happened;
+
+ argv[0] = (VALUE) handle;
+ rv = funcall2 (Qnil, rb_intern ("can_trim"), 1, argv, &exception_happened);
+ if (exception_happened == EXCEPTION_NO_METHOD_ERROR)
+ /* Fall back to checking if the trim method exists. */
+ rv = rb_funcall (Qnil, rb_intern ("respond_to?"),
+ 2, ID2SYM (rb_intern ("trim")), Qtrue);
+ else if (exception_happened == EXCEPTION_OTHER)
+ return -1;
+
+ return RTEST (rv);
+}
+
+#define plugin_rb_config_help \
+ "script=<FILENAME> (required) The Ruby plugin to run.\n" \
+ "[other arguments may be used by the plugin that you load]"
+
+/* Ruby is inherently unsafe to call in parallel from multiple
+ * threads.
+ */
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+
+static struct nbdkit_plugin plugin = {
+ .name = "ruby",
+ .version = PACKAGE_VERSION,
+
+ .load = plugin_rb_load,
+ .unload = plugin_rb_unload,
+ .dump_plugin = plugin_rb_dump_plugin,
+
+ .config = plugin_rb_config,
+ .config_complete = plugin_rb_config_complete,
+ .config_help = plugin_rb_config_help,
+
+ .open = plugin_rb_open,
+ .close = plugin_rb_close,
+
+ .get_size = plugin_rb_get_size,
+ .can_write = plugin_rb_can_write,
+ .can_flush = plugin_rb_can_flush,
+ .is_rotational = plugin_rb_is_rotational,
+ .can_trim = plugin_rb_can_trim,
+
+ .pread = plugin_rb_pread,
+ .pwrite = plugin_rb_pwrite,
+ .flush = plugin_rb_flush,
+ .trim = plugin_rb_trim,
+ .zero = plugin_rb_zero,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+[package]
+name = "nbdkit"
+version = "@VERSION@"
+authors = ["Richard W.M. Jones <rjones@redhat.com>"]
+edition = "2018"
+
+[dependencies]
+# lazy_static is used by the example.
+lazy_static = "1.2.0"
+
+[[example]]
+name = "ramdisk"
+crate-type = ["cdylib"]
--- /dev/null
+# nbdkit
+# Copyright (C) 2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = \
+ Cargo.toml.in \
+ examples/ramdisk.rs \
+ nbdkit-rust-plugin.pod \
+ src/lib.rs
+
+if HAVE_RUST
+
+noinst_SCRIPTS = \
+ target/release/libnbdkit.rlib \
+ target/release/examples/libramdisk.so
+
+target/release/libnbdkit.rlib: Cargo.toml src/lib.rs
+ cargo build --release
+
+target/release/examples/libramdisk.so: Cargo.toml examples/ramdisk.rs
+ cargo build --release --example ramdisk
+
+if HAVE_POD
+
+man_MANS = nbdkit-rust-plugin.3
+CLEANFILES += $(man_MANS)
+
+nbdkit-rust-plugin.3: nbdkit-rust-plugin.pod
+ $(PODWRAPPER) --section=3 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+
+endif
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
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+# with or without modifications, as long as this notice is preserved.
+
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+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
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+
+# nbdkit
+# Copyright (C) 2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+// nbdkit
+// Copyright (C) 2019 Red Hat Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//
+// * Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+//
+// * Neither the name of Red Hat nor the names of its contributors may be
+// used to endorse or promote products derived from this software without
+// specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+// PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+// USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+
+extern crate nbdkit;
+
+#[macro_use]
+extern crate lazy_static;
+
+use std::ptr;
+use std::os::raw::{c_char, c_int, c_void};
+use std::sync::Mutex;
+
+use nbdkit::*;
+use nbdkit::ThreadModel::*;
+
+// The RAM disk.
+lazy_static! {
+ static ref DISK: Mutex<Vec<u8>> = Mutex::new (vec![0; 100 * 1024 * 1024]);
+}
+
+struct Handle {
+ // Box::new doesn't allocate anything unless we put some dummy
+ // fields here. In a real implementation you would put per-handle
+ // data here as required.
+ _not_used: i32,
+}
+
+extern fn ramdisk_open (_readonly: c_int) -> *mut c_void {
+ let h = Handle {_not_used: 0};
+ let h = Box::new(h);
+ return Box::into_raw(h) as *mut c_void;
+}
+
+extern fn ramdisk_close (h: *mut c_void) {
+ let h = unsafe { Box::from_raw(h as *mut Handle) };
+ drop (h);
+}
+
+extern fn ramdisk_get_size (_h: *mut c_void) -> i64 {
+ return DISK.lock().unwrap().capacity() as i64;
+}
+
+extern fn ramdisk_pread (_h: *mut c_void, buf: *mut c_char, count: u32,
+ offset: u64, _flags: u32) -> c_int {
+ let offset = offset as usize;
+ let count = count as usize;
+ let disk = DISK.lock().unwrap();
+ unsafe {
+ ptr::copy_nonoverlapping (&disk[offset], buf as *mut u8, count);
+ }
+ return 0;
+}
+
+extern fn ramdisk_pwrite (_h: *mut c_void, buf: *const c_char, count: u32,
+ offset: u64, _flags: u32) -> c_int {
+ let offset = offset as usize;
+ let count = count as usize;
+ let mut disk = DISK.lock().unwrap();
+ unsafe {
+ ptr::copy_nonoverlapping (buf as *const u8, &mut disk[offset], count);
+ }
+ return 0;
+}
+
+// Every plugin must define a public, C-compatible plugin_init
+// function which returns a pointer to a Plugin struct.
+#[no_mangle]
+pub extern fn plugin_init () -> *const Plugin {
+ // Plugin name.
+ // https://github.com/rust-lang/rfcs/issues/400
+ let name = "ramdisk\0" as *const str as *const [c_char] as *const c_char;
+
+ // Create a mutable plugin, setting the 5 required fields.
+ let mut plugin = Plugin::new (
+ Parallel,
+ name,
+ ramdisk_open,
+ ramdisk_get_size,
+ ramdisk_pread
+ );
+ // Update any other fields as required.
+ plugin.close = Some (ramdisk_close);
+ plugin.pwrite = Some (ramdisk_pwrite);
+
+ // Return the pointer.
+ let plugin = Box::new(plugin);
+ // XXX Memory leak.
+ return Box::into_raw(plugin);
+}
--- /dev/null
+=head1 NAME
+
+nbdkit-rust-plugin - writing nbdkit plugins in Rust
+
+=head1 SYNOPSIS
+
+ nbdkit /path/to/libplugin.so [arguments...]
+
+=head1 DESCRIPTION
+
+This manual page describes how to write nbdkit plugins in compiled
+Rust code. Rust plugins are compiled to F<*.so> files (the same as
+plugins written in C) and are used in the same way.
+
+=head1 WRITING A RUST NBDKIT PLUGIN
+
+Broadly speaking, Rust nbdkit plugins work like C ones, so you should
+read L<nbdkit-plugin(3)> first.
+
+You should also look at
+L<https://github.com/libguestfs/nbdkit/blob/master/plugins/rust/src/lib.rs>
+and
+L<https://github.com/libguestfs/nbdkit/blob/master/plugins/rust/examples/ramdisk.rs>
+in the nbdkit source tree. The first describes the plugin interface
+for Rust plugins and the second provides a simple example.
+
+We may change how Rust plugins are written in future to make them more
+idiomatic. At the moment each callback corresponds directly to a C
+callback - in fact each is called directly from the server.
+
+Your Rust code should define a public C<plugin_init> function which
+returns a pointer to a C<Plugin> struct. This struct is exactly
+compatible with the C struct used by C plugins.
+
+ extern crate nbdkit;
+ use nbdkit::*;
+ use nbdkit::ThreadModel::*;
+
+ #[no_mangle]
+ pub extern fn plugin_init () -> *const Plugin {
+ // Plugin name.
+ let name = "myplugin\0"
+ as *const str as *const [c_char] as *const c_char;
+
+ // Create a mutable plugin, setting the 5 required fields.
+ let mut plugin = Plugin::new (
+ Serialize_All_Requests,
+ name,
+ myplugin_open,
+ myplugin_get_size,
+ myplugin_pread
+ );
+ // Update any other fields as required.
+ plugin.close = Some (myplugin_close);
+ plugin.pwrite = Some (myplugin_pwrite);
+
+ // Return the pointer.
+ let plugin = Box::new(plugin);
+ return Box::into_raw(plugin);
+}
+
+=head2 Compiling a Rust nbdkit plugin
+
+Because you are building a C-compatible shared library, the crate type
+must be set to:
+
+ crate-type = ["cdylib"]
+
+After compiling using C<cargo build> you can then use
+C<libmyplugin.so> as an nbdkit plugin (see L<nbdkit(1)>,
+L<nbdkit-plugin(3)>):
+
+ nbdkit ./libmyplugin.so [args ...]
+
+=head2 Threads
+
+The first parameter of C<Plugin::new> is the thread model, which can
+be one of the values in the table below. For more information on
+thread models, see L<nbdkit-plugin(3)/THREADS>.
+
+=over 4
+
+=item C<nbdkit::ThreadModel::Serialize_Connections>
+
+=item C<nbdkit::ThreadModel::Serialize_All_Requests>
+
+=item C<nbdkit::ThreadModel::Serialize_Requests>
+
+=item C<nbdkit::ThreadModel::Parallel>
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<cargo(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2019 Red Hat Inc.
--- /dev/null
+// nbdkit
+// Copyright (C) 2019 Red Hat Inc.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions are
+// met:
+//
+// * Redistributions of source code must retain the above copyright
+// notice, this list of conditions and the following disclaimer.
+//
+// * Redistributions in binary form must reproduce the above copyright
+// notice, this list of conditions and the following disclaimer in the
+// documentation and/or other materials provided with the distribution.
+//
+// * Neither the name of Red Hat nor the names of its contributors may be
+// used to endorse or promote products derived from this software without
+// specific prior written permission.
+//
+// THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+// THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+// PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+// CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+// SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+// LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+// USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+// ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+// OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+// OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+
+use std::mem;
+use std::os::raw::{c_char, c_int, c_void};
+
+// This struct describes the plugin ABI which your plugin_init()
+// function must return.
+#[repr(C)]
+pub struct Plugin {
+ _struct_size: u64,
+ _api_version: c_int,
+ _thread_model: c_int,
+
+ pub name: *const c_char,
+ pub longname: *const c_char,
+ pub version: *const c_char,
+ pub description: *const c_char,
+
+ pub load: Option<extern fn ()>,
+ pub unload: Option<extern fn ()>,
+
+ pub config: Option<extern fn (*const c_char, *const c_char)>,
+ pub config_complete: Option<extern fn () -> c_int>,
+ pub config_help: *const c_char,
+
+ pub open: extern fn (c_int) -> *mut c_void,
+ pub close: Option<extern fn (*mut c_void)>,
+
+ pub get_size: extern fn (*mut c_void) -> i64,
+
+ pub can_write: Option<extern fn (*mut c_void) -> c_int>,
+ pub can_flush: Option<extern fn (*mut c_void) -> c_int>,
+ pub is_rotational: Option<extern fn (*mut c_void) -> c_int>,
+ pub can_trim: Option<extern fn (*mut c_void) -> c_int>,
+
+ // Slots for old v1 API functions.
+ _pread_old: Option<extern fn ()>,
+ _pwrite_old: Option<extern fn ()>,
+ _flush_old: Option<extern fn ()>,
+ _trim_old: Option<extern fn ()>,
+ _zero_old: Option<extern fn ()>,
+
+ errno_is_preserved: c_int,
+
+ pub dump_plugin: Option<extern fn ()>,
+
+ pub can_zero: Option<extern fn (*mut c_void) -> c_int>,
+ pub can_fua: Option<extern fn (*mut c_void) -> c_int>,
+
+ pub pread: extern fn (h: *mut c_void, buf: *mut c_char, count: u32,
+ offset: u64,
+ flags: u32) -> c_int,
+ pub pwrite: Option<extern fn (h: *mut c_void, buf: *const c_char,
+ count: u32, offset: u64,
+ flags: u32) -> c_int>,
+ pub flush: Option<extern fn (h: *mut c_void, flags: u32) -> c_int>,
+ pub trim: Option<extern fn (h: *mut c_void,
+ count: u32, offset: u64,
+ flags: u32) -> c_int>,
+ pub zero: Option<extern fn (h: *mut c_void,
+ count: u32, offset: u64,
+ flags: u32) -> c_int>,
+
+ pub magic_config_key: *const c_char,
+
+ pub can_multi_conn: Option<extern fn (h: *mut c_void) -> c_int>,
+}
+
+pub enum ThreadModel {
+ SerializeConnections = 0,
+ SerializeAllRequests = 1,
+ SerializeRequests = 2,
+ Parallel = 3,
+}
+
+impl Plugin {
+ pub fn new (thread_model: ThreadModel,
+ name: *const c_char,
+ open: extern fn (c_int) -> *mut c_void,
+ get_size: extern fn (*mut c_void) -> i64,
+ pread: extern fn (h: *mut c_void, buf: *mut c_char,
+ count: u32, offset: u64,
+ flags: u32) -> c_int) -> Plugin {
+ Plugin {
+ _struct_size: mem::size_of::<Plugin>() as u64,
+ _api_version: 2,
+ _thread_model: thread_model as c_int,
+ name: name,
+ longname: std::ptr::null(),
+ version: std::ptr::null(),
+ description: std::ptr::null(),
+ load: None,
+ unload: None,
+ config: None,
+ config_complete: None,
+ config_help: std::ptr::null(),
+ open: open,
+ close: None,
+ get_size: get_size,
+ can_write: None,
+ can_flush: None,
+ is_rotational: None,
+ can_trim: None,
+ _pread_old: None,
+ _pwrite_old: None,
+ _flush_old: None,
+ _trim_old: None,
+ _zero_old: None,
+ errno_is_preserved: 0,
+ dump_plugin: None,
+ can_zero: None,
+ can_fua: None,
+ pread: pread,
+ pwrite: None,
+ flush: None,
+ trim: None,
+ zero: None,
+ magic_config_key: std::ptr::null(),
+ can_multi_conn: None,
+ }
+ }
+}
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = \
+ nbdkit-sh-plugin.pod \
+ example.sh
+
+plugin_LTLIBRARIES = nbdkit-sh-plugin.la
+
+nbdkit_sh_plugin_la_SOURCES = \
+ call.c \
+ call.h \
+ sh.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_sh_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_sh_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_sh_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-sh-plugin.3
+CLEANFILES += $(man_MANS)
+
+nbdkit-sh-plugin.3: nbdkit-sh-plugin.pod
+ $(PODWRAPPER) --section=3 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
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+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
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+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
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+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
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+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+ fi; \
+ done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES) $(MANS)
+installdirs:
+ for dir in "$(DESTDIR)$(plugindir)" "$(DESTDIR)$(man3dir)"; do \
+ test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+ done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+ if test -z '$(STRIP)'; then \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ install; \
+ else \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
+
+clean-generic:
+ -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pluginLTLIBRARIES \
+ mostlyclean-am
+
+distclean: distclean-am
+ -rm -f ./$(DEPDIR)/nbdkit_sh_plugin_la-call.Plo
+ -rm -f ./$(DEPDIR)/nbdkit_sh_plugin_la-sh.Plo
+ -rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-man install-pluginLTLIBRARIES
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man: install-man3
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f ./$(DEPDIR)/nbdkit_sh_plugin_la-call.Plo
+ -rm -f ./$(DEPDIR)/nbdkit_sh_plugin_la-sh.Plo
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-man uninstall-pluginLTLIBRARIES
+
+uninstall-man: uninstall-man3
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+ clean-generic clean-libtool clean-pluginLTLIBRARIES \
+ cscopelist-am ctags ctags-am distclean distclean-compile \
+ distclean-generic distclean-libtool distclean-tags distdir dvi \
+ dvi-am html html-am info info-am install install-am \
+ install-data install-data-am install-dvi install-dvi-am \
+ install-exec install-exec-am install-html install-html-am \
+ install-info install-info-am install-man install-man3 \
+ install-pdf install-pdf-am install-pluginLTLIBRARIES \
+ install-ps install-ps-am install-strip installcheck \
+ installcheck-am installdirs maintainer-clean \
+ maintainer-clean-generic mostlyclean mostlyclean-compile \
+ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+ tags tags-am uninstall uninstall-am uninstall-man \
+ uninstall-man3 uninstall-pluginLTLIBRARIES
+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-sh-plugin.3: nbdkit-sh-plugin.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=3 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <signal.h>
+#include <poll.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+
+#include <nbdkit-plugin.h>
+
+#include "call.h"
+
+/* Ensure there is at least 1 byte of space in the buffer. */
+static int
+expand_buf (char **buf, size_t *buflen, size_t *bufalloc)
+{
+ char *nb;
+
+ if (*bufalloc > *buflen)
+ return 0;
+
+ *bufalloc = *bufalloc == 0 ? 64 : *bufalloc * 2;
+ nb = realloc (*buf, *bufalloc);
+ if (nb == NULL) {
+ nbdkit_error ("%s: malloc: %m", script);
+ return -1;
+ }
+ *buf = nb;
+ return 0;
+}
+
+/* This is the generic function that calls the script. It can
+ * optionally write to the script's stdin and read from the script's
+ * stdout and stderr. It returns the raw error code and does no error
+ * processing.
+ */
+static int
+call3 (const char *wbuf, size_t wbuflen, /* sent to stdin */
+ char **rbuf, size_t *rbuflen, /* read from stdout */
+ char **ebuf, size_t *ebuflen, /* read from stderr */
+ const char **argv) /* script + parameters */
+{
+ pid_t pid = -1;
+ int status;
+ int ret = ERROR;
+ int in_fd[2] = { -1, -1 };
+ int out_fd[2] = { -1, -1 };
+ int err_fd[2] = { -1, -1 };
+ size_t rbufalloc, ebufalloc;
+ struct pollfd pfds[3];
+ ssize_t r;
+
+ *rbuf = *ebuf = NULL;
+ *rbuflen = *ebuflen = 0;
+ rbufalloc = ebufalloc = 0;
+
+ if (pipe (in_fd) == -1) {
+ nbdkit_error ("%s: pipe: %m", script);
+ goto error;
+ }
+ if (pipe (out_fd) == -1) {
+ nbdkit_error ("%s: pipe: %m", script);
+ goto error;
+ }
+ if (pipe (err_fd) == -1) {
+ nbdkit_error ("%s: pipe: %m", script);
+ goto error;
+ }
+
+ pid = fork ();
+ if (pid == -1) {
+ nbdkit_error ("%s: fork: %m", script);
+ goto error;
+ }
+
+ if (pid == 0) { /* Child. */
+ close (in_fd[1]);
+ close (out_fd[0]);
+ close (err_fd[0]);
+ dup2 (in_fd[0], 0);
+ dup2 (out_fd[1], 1);
+ dup2 (err_fd[1], 2);
+ close (in_fd[0]);
+ close (out_fd[1]);
+ close (err_fd[1]);
+
+ /* Restore SIGPIPE back to SIG_DFL, since shell can't undo SIG_IGN */
+ signal (SIGPIPE, SIG_DFL);
+
+ /* Set $tmpdir for the script. */
+ setenv ("tmpdir", tmpdir, 1);
+
+ execvp (argv[0], (char **) argv);
+ perror (argv[0]);
+ _exit (EXIT_FAILURE);
+ }
+
+ /* Parent. */
+ close (in_fd[0]); in_fd[0] = -1;
+ close (out_fd[1]); out_fd[1] = -1;
+ close (err_fd[1]); err_fd[1] = -1;
+
+ while (out_fd[0] >= 0 || err_fd[0] >= 0) {
+ pfds[0].fd = in_fd[1]; /* Connected to child stdin. */
+ pfds[0].events = wbuflen ? POLLOUT : 0;
+ pfds[1].fd = out_fd[0]; /* Connected to child stdout. */
+ pfds[1].events = POLLIN;
+ pfds[2].fd = err_fd[0]; /* Connected to child stderr. */
+ pfds[2].events = POLLIN;
+
+ if (poll (pfds, 3, -1) == -1) {
+ if (errno == EINTR || errno == EAGAIN)
+ continue;
+ nbdkit_error ("%s: poll: %m", script);
+ goto error;
+ }
+
+ /* Write more data to stdin. */
+ if (pfds[0].revents & POLLOUT) {
+ r = write (pfds[0].fd, wbuf, wbuflen);
+ if (r == -1) {
+ nbdkit_error ("%s: write: %m", script);
+ goto error;
+ }
+ wbuf += r;
+ wbuflen -= r;
+ /* After writing all the data we close the pipe so that
+ * the reader on the other end doesn't wait for more.
+ */
+ if (wbuflen == 0) {
+ close (in_fd[1]);
+ in_fd[1] = -1; /* poll will ignore this fd */
+ }
+ }
+
+ /* Check stdout. */
+ if (pfds[1].revents & POLLIN) {
+ if (expand_buf (rbuf, rbuflen, &rbufalloc) == -1)
+ goto error;
+ r = read (pfds[1].fd, *rbuf + *rbuflen, rbufalloc - *rbuflen);
+ if (r == -1) {
+ nbdkit_error ("%s: read: %m", script);
+ goto error;
+ }
+ else if (r == 0) {
+ close_out:
+ close (out_fd[0]);
+ out_fd[0] = -1; /* poll will ignore this fd */
+ }
+ else if (r > 0)
+ *rbuflen += r;
+ }
+ else if (pfds[1].revents & POLLHUP) {
+ goto close_out;
+ }
+
+ /* Check stderr. */
+ if (pfds[2].revents & POLLIN) {
+ if (expand_buf (ebuf, ebuflen, &ebufalloc) == -1)
+ goto error;
+ r = read (pfds[2].fd, *ebuf + *ebuflen, ebufalloc - *ebuflen);
+ if (r == -1) {
+ nbdkit_error ("%s: read: %m", script);
+ goto error;
+ }
+ else if (r == 0) {
+ close_err:
+ close (err_fd[0]);
+ err_fd[0] = -1; /* poll will ignore this fd */
+ }
+ else if (r > 0)
+ *ebuflen += r;
+ }
+ else if (pfds[2].revents & POLLHUP) {
+ goto close_err;
+ }
+ }
+
+ if (waitpid (pid, &status, 0) == -1) {
+ nbdkit_error ("%s: waitpid: %m", script);
+ pid = -1;
+ goto error;
+ }
+ pid = -1;
+
+ if (WIFSIGNALED (status)) {
+ nbdkit_error ("%s: script terminated by signal %d",
+ script, WTERMSIG (status));
+ goto error;
+ }
+
+ if (WIFSTOPPED (status)) {
+ nbdkit_error ("%s: script stopped by signal %d",
+ script, WTERMSIG (status));
+ goto error;
+ }
+
+ /* \0-terminate both read buffers (for convenience). */
+ if (expand_buf (rbuf, rbuflen, &rbufalloc) == -1)
+ goto error;
+ if (expand_buf (ebuf, ebuflen, &ebufalloc) == -1)
+ goto error;
+ (*rbuf)[*rbuflen] = '\0';
+ (*ebuf)[*ebuflen] = '\0';
+
+ ret = WEXITSTATUS (status);
+
+ error:
+ if (in_fd[0] >= 0)
+ close (in_fd[0]);
+ if (in_fd[1] >= 0)
+ close (in_fd[1]);
+ if (out_fd[0] >= 0)
+ close (out_fd[0]);
+ if (out_fd[1] >= 0)
+ close (out_fd[1]);
+ if (err_fd[0] >= 0)
+ close (err_fd[0]);
+ if (err_fd[1] >= 0)
+ close (err_fd[1]);
+ if (pid >= 0)
+ waitpid (pid, NULL, 0);
+
+ return ret;
+}
+
+static void
+handle_script_error (char *ebuf, size_t len)
+{
+ int err;
+ size_t skip;
+ char *p;
+
+ if (strcmp (ebuf, "EPERM ") == 0) {
+ err = EPERM;
+ skip = 6;
+ }
+ else if (strcmp (ebuf, "EIO ") == 0) {
+ err = EIO;
+ skip = 4;
+ }
+ else if (strcmp (ebuf, "ENOMEM ") == 0) {
+ err = ENOMEM;
+ skip = 7;
+ }
+ else if (strcmp (ebuf, "EINVAL ") == 0) {
+ err = EINVAL;
+ skip = 7;
+ }
+ else if (strcmp (ebuf, "ENOSPC ") == 0) {
+ err = ENOSPC;
+ skip = 7;
+ }
+ else if (strcmp (ebuf, "ESHUTDOWN ") == 0) {
+ err = ESHUTDOWN;
+ skip = 10;
+ }
+ else {
+ /* Default to EIO. */
+ err = EIO;
+ skip = 0;
+ }
+
+ while (len > 0 && ebuf[len-1] == '\n')
+ ebuf[--len] = '\0';
+
+ if (len > 0) {
+ p = strchr (ebuf, '\n');
+ if (p) {
+ /* More than one line, so write the whole message to debug ... */
+ nbdkit_debug ("%s: %s", script, ebuf);
+ /* ... but truncate it for the error message below. */
+ *p = '\0';
+ }
+ if (strlen (ebuf) >= skip)
+ ebuf += skip;
+ nbdkit_error ("%s: %s", script, ebuf);
+ }
+ else
+ nbdkit_error ("%s: script exited with error, "
+ "but did not print an error message on stderr", script);
+
+ /* Set errno. */
+ errno = err;
+}
+
+/* Call the script with parameters. Don't write to stdin or read from
+ * stdout, but handle stderr if an error occurs. Returns the exit
+ * code from the script.
+ */
+exit_code
+call (const char **argv)
+{
+ int r;
+ char *rbuf;
+ size_t rbuflen;
+ char *ebuf;
+ size_t ebuflen;
+
+ r = call3 (NULL, 0, &rbuf, &rbuflen, &ebuf, &ebuflen, argv);
+ switch (r) {
+ case OK:
+ case MISSING:
+ case RET_FALSE:
+ /* Script successful. */
+ free (rbuf);
+ free (ebuf);
+ return r;
+
+ case ERROR:
+ default:
+ /* Error case. */
+ free (rbuf);
+ handle_script_error (ebuf, ebuflen);
+ free (ebuf);
+ return ERROR;
+ }
+}
+
+/* Call the script with parameters. Read from stdout and return the
+ * buffer. Returns the exit code from the script.
+ */
+exit_code
+call_read (char **rbuf, size_t *rbuflen, const char **argv)
+{
+ int r;
+ char *ebuf;
+ size_t ebuflen;
+
+ r = call3 (NULL, 0, rbuf, rbuflen, &ebuf, &ebuflen, argv);
+ switch (r) {
+ case OK:
+ case MISSING:
+ case RET_FALSE:
+ /* Script successful. */
+ free (ebuf);
+ return r;
+
+ case ERROR:
+ default:
+ /* Error case. */
+ free (*rbuf);
+ *rbuf = NULL;
+ handle_script_error (ebuf, ebuflen);
+ free (ebuf);
+ return ERROR;
+ }
+}
+
+/* Call the script with parameters. Write to stdin of the script.
+ * Returns the exit code from the script.
+ */
+exit_code
+call_write (const char *wbuf, size_t wbuflen, const char **argv)
+{
+ int r;
+ char *rbuf;
+ size_t rbuflen;
+ char *ebuf;
+ size_t ebuflen;
+
+ r = call3 (wbuf, wbuflen, &rbuf, &rbuflen, &ebuf, &ebuflen, argv);
+ switch (r) {
+ case OK:
+ case MISSING:
+ case RET_FALSE:
+ /* Script successful. */
+ free (rbuf);
+ free (ebuf);
+ return r;
+
+ case ERROR:
+ default:
+ /* Error case. */
+ free (rbuf);
+ handle_script_error (ebuf, ebuflen);
+ free (ebuf);
+ return ERROR;
+ }
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_CALL_H
+#define NBDKIT_CALL_H
+
+/* Exit codes. */
+typedef enum exit_code {
+ OK = 0,
+ ERROR = 1, /* all script error codes are mapped to this */
+ MISSING = 2, /* method missing */
+ RET_FALSE = 3 /* script exited with code 3 meaning false */
+} exit_code;
+
+extern exit_code call (const char **argv)
+ __attribute__((__nonnull__ (1)));
+extern exit_code call_read (char **rbuf, size_t *rbuflen, const char **argv)
+ __attribute__((__nonnull__ (1, 2, 3)));
+extern exit_code call_write (const char *wbuf, size_t wbuflen,
+ const char **argv)
+ __attribute__((__nonnull__ (1, 3)));
+
+extern char tmpdir[];
+extern char *script;
+
+#endif /* NBDKIT_CALL_H */
--- /dev/null
+#!/usr/bin/env bash
+#
+# Example Bash plugin.
+#
+# This example can be freely used for any purpose.
+#
+# Run it from the build directory like this:
+#
+# ./nbdkit -f -v sh ./plugins/sh/example.sh file=disk.img
+#
+# Or run it after installing nbdkit like this:
+#
+# nbdkit -f -v sh ./plugins/sh/example.sh file=disk.img
+#
+# The -f -v arguments are optional. They cause the server to stay in
+# the foreground and print debugging, which is useful when testing.
+#
+# You can connect to the server using guestfish or qemu, eg:
+#
+# guestfish --format=raw -a nbd://localhost
+# ><fs> run
+# ><fs> list-filesystems
+# ><fs> mount /dev/sda1 /
+
+# Note that the exit code of the script matters:
+# 0 => OK
+# 1 => Error
+# 2 => Method is missing
+# 3 => False
+# For other values, see the nbdkit-sh-plugin(3) manual page.
+
+# Check we're being run from nbdkit.
+#
+# Because the script has to be executable (for nbdkit to run it) there
+# is a danger that someone could run the script standalone which won't
+# work. Use two tests to try to make sure we are run from nbdkit:
+#
+# - $tmpdir is set to a random, empty directory by nbdkit. Note the
+# contents are deleted when nbdkit exits.
+#
+# - $1 is set (to a method name).
+if [ ! -d $tmpdir ] || [ "x$1" = "x" ]; then
+ echo "$0: this script must be run from nbdkit" >&2
+ echo "Use ‘nbdkit sh $0’" >&2
+ exit 1
+fi
+
+# We make a symlink to the file in the tmpdir directory.
+f=$tmpdir/file
+
+case "$1" in
+ dump_plugin)
+ # This is called from: nbdkit sh example.sh --dump-plugin
+ echo "example_sh=1"
+ ;;
+
+ config)
+ # We expect a file=... parameter pointing to the file to serve.
+ if [ "$2" = "file" ]; then
+ if [ ! -r "$3" ]; then
+ echo "file $3 does not exist or is not readable" >&2
+ exit 1
+ fi
+ ln -sf "$(realpath "$3")" $f
+ else
+ echo "unknown parameter $2=$3" >&2
+ exit 1
+ fi
+ ;;
+
+ config_complete)
+ # Check the file parameter was passed.
+ if [ ! -L $f ]; then
+ echo "file parameter missing" >&2
+ exit 1
+ fi
+ ;;
+
+ open)
+ # Open a new client connection.
+
+ # Create a directory to store per-connection state. The
+ # directory name is printed out by the mktemp command, that
+ # output is captured by nbdkit, and it is passed back as the
+ # handle parameter ($2) in subsequent calls below.
+ #
+ # You can use this directory to store per-connection state,
+ # and it along with everything in $tmpdir is cleaned up by
+ # nbdkit on exit.
+ #
+ # (This plugin does not actually use per-connection state,
+ # it's just an example.)
+ mktemp -d $tmpdir/handle-XXXXXX
+ ;;
+
+ get_size)
+ # Print the disk size on stdout.
+ stat -L -c '%s' $f || exit 1
+ ;;
+
+ pread)
+ # Read the requested part of the disk and write to stdout.
+ dd iflag=skip_bytes,count_bytes skip=$4 count=$3 if=$f || exit 1
+ ;;
+
+ pwrite)
+ # Copy data from stdin and write it to the disk.
+ dd oflag=seek_bytes conv=notrunc seek=$4 of=$f || exit 1
+ ;;
+
+ can_write)
+ # If we provide a pwrite method, we must provide this method
+ # (and similarly for flush and trim). See nbdkit-sh-plugin(3)
+ # for details. This will exit 0 (below) which means true.
+ # Use ‘exit 3’ if false.
+ ;;
+
+ trim)
+ # Punch a hole in the backing file, if supported.
+ fallocate -p -o $4 -l $3 -n $f || exit 1
+ ;;
+ can_trim)
+ # We can trim if the fallocate command exists.
+ fallocate --help >/dev/null 2>&1 || exit 3
+ ;;
+
+ zero)
+ # Efficiently zero the backing file, if supported.
+ fallocate -z -o $4 -l $3 -n $f || exit 1
+ ;;
+ can_zero)
+ # We can efficiently zero if the fallocate command exists.
+ fallocate --help >/dev/null 2>&1 || exit 3
+ ;;
+
+ *)
+ # Unknown methods must exit with code 2.
+ exit 2
+esac
+
+exit 0
--- /dev/null
+=head1 NAME
+
+nbdkit-sh-plugin - nbdkit shell, script or executable plugin
+
+=head1 SYNOPSIS
+
+ nbdkit sh /path/to/script [arguments...]
+
+ nbdkit sh - <<'EOF'
+ ... shell script ...
+ EOF
+
+=head1 DESCRIPTION
+
+C<nbdkit-sh-plugin> allows you to write plugins for L<nbdkit(1)> using
+arbitrary scripting languages, including shells like L<bash(1)>,
+L<dash(1)>, L<csh(1)>, L<zsh(1)> etc., other scripting environments,
+or any executable. Note if you want to use an established scripting
+language like Perl or Python, then nbdkit has specific plugins to
+handle those languages and those will be more efficient (see
+L<nbdkit(1)> for a complete list).
+
+=head2 If you have been given an nbdkit sh plugin
+
+Assuming you have a shell script which is an nbdkit plugin, you run it
+like this:
+
+ nbdkit sh /path/to/script
+
+You may have to add further C<key=value> arguments to the command
+line. The script must be executable (C<chmod +x>).
+
+=head2 Inline shell scripts
+
+It is also possible to write a shell script plugin "inline" using C<->
+as the name of the script, like this:
+
+ nbdkit sh - <<'EOF'
+ case "$1" in
+ get_size) echo 1M ;;
+ pread) dd if=/dev/zero count=$3 iflag=count_bytes ;;
+ *) exit 2 ;;
+ esac
+ EOF
+
+By default the inline script runs under F</bin/sh>. You can add a
+shebang (C<#!>) to use other scripting languages.
+
+=head1 WRITING AN NBDKIT SH PLUGIN
+
+For an example plugin written in Bash, see:
+L<https://github.com/libguestfs/nbdkit/blob/master/plugins/sh/example.sh>
+
+Broadly speaking, nbdkit shell plugins work like C ones, so you should
+read L<nbdkit-plugin(3)> first.
+
+=head2 Programming model
+
+This plugin has a simple programming model: For every plugin method
+that needs to be called, the external script is invoked with
+parameters describing the method and its arguments. The first
+parameter is always the method name. For example:
+
+ /path/to/script config file disk.img
+ │ │ │
+ │ │ └─ value ($3)
+ │ └── key ($2)
+ method ($1)
+
+ /path/to/script pread <handle> <count> <offset>
+ │ │ │ │
+ │ │ │ └─ offset in bytes ($4)
+ │ │ └── request size in bytes ($3)
+ method ($1) └── handle ($2) ─ see "Handles" below
+
+=head2 Exit codes
+
+The script should exit with specific exit codes:
+
+=over 4
+
+=item S<0>
+
+The method was executed successfully.
+
+=item 1 and 8-127
+
+There was an error. The script may print on stderr an errno and a
+message, for example:
+
+ ENOSPC Out of space
+
+If the script doesn't print anything or the output cannot be parsed
+then nbdkit assumes error C<EIO>.
+
+=item S<2>
+
+The requested method is not supported by the script.
+
+=item S<3>
+
+For methods which return booleans, this code indicates false.
+
+=item 4, 5, 6, 7
+
+These exit codes are reserved for future use.
+
+=back
+
+=head2 Temporary directory
+
+A fresh script is invoked for each method call (ie. scripts are
+stateless), so if the script needs to store state it has to store it
+somewhere in the filesystem in a format and location which is left up
+to the author of the script.
+
+However nbdkit helps by creating a randomly named, empty directory for
+the script. This directory persists for the lifetime of nbdkit and is
+deleted when nbdkit exits. The name of the directory is passed to
+each script invocation in the C<$tmpdir> environment variable.
+
+=head2 Handles
+
+Handles are arbitrary strings, but it is best to limit them to short
+alphanumeric strings.
+
+=head3 Per-connection state
+
+The temporary directory described above can be used for state for the
+lifetime of the nbdkit instance (across multiple connections). If you
+want to store state per connection then one way to do it is to create
+a randomly named subdirectory under the temporary directory:
+
+ case "$1" in
+ ...
+ open)
+ mktemp -d $tmpdir/handle-XXXXXX ;;
+
+The handle will be the subdirectory name, returned to the script as
+C<$2> in all connected calls (eg. C<pread>, C<get_size>). You can
+delete the subdirectory explicitly in C<close>:
+
+ case "$1" in
+ ...
+ close)
+ rm -rf "$2" ;;
+
+or rely on nbdkit deleting the whole temporary directory including all
+per-handle subdirectories when it exits.
+
+=head2 Methods
+
+This just documents the arguments to the script corresponding to each
+plugin method, and any way that they differ from the C callbacks. In
+all other respects they work the same way as the C callbacks, so you
+should go and read L<nbdkit-plugin(3)>.
+
+=over 4
+
+=item C<load>
+
+ /path/to/script load
+
+=item C<unload>
+
+ /path/to/script unload
+
+This is called just before nbdkit exits. Errors from this method are
+ignored.
+
+=item C<dump_plugin>
+
+ /path/to/script dump_plugin
+
+=item C<config>
+
+ /path/to/script config <key> <value>
+
+=item C<config_complete>
+
+ /path/to/script config_complete
+
+=item C<open>
+
+ /path/to/script open <readonly>
+
+The C<readonly> parameter will be C<true> or C<false>.
+
+On success this should print the handle (any string) on stdout and
+exit with code C<0>. If the handle ends with a newline character then
+the newline is removed.
+
+Unlike C plugins, this method is I<not> required. If omitted then the
+handle will be C<""> (empty string).
+
+=item C<close>
+
+ /path/to/script close <handle>
+
+=item C<get_size>
+
+ /path/to/script get_size <handle>
+
+The script should print the size of the disk image on stdout. You can
+print the size in bytes, or use any format understood by
+C<nbdkit_parse_size> such as C<1M> (see
+L<nbdkit-plugin(3)/PARSING SIZE PARAMETERS>).
+
+This method is required.
+
+=item C<can_write>
+
+=item C<can_flush>
+
+=item C<can_trim>
+
+=item C<can_zero>
+
+=item C<can_extents>
+
+Unlike in other languages, you B<must> provide the C<can_*> methods
+otherwise they are assumed to all return false and your C<pwrite>,
+C<flush>, C<trim>, C<zero> and C<extents> methods will never be
+called. The reason for this is obscure: In other languages we can
+detect if (eg) a C<pwrite> method is defined and synthesize an
+appropriate response if no actual C<can_write> method is defined.
+However detecting if methods are present without running them is not
+possible with this plugin.
+
+ /path/to/script can_write <handle>
+ /path/to/script can_flush <handle>
+ /path/to/script can_trim <handle>
+ /path/to/script can_zero <handle>
+ /path/to/script can_extents <handle>
+
+The script should exit with code C<0> for true or code C<3> for false.
+
+=item C<is_rotational>
+
+ /path/to/script is_rotational <handle>
+
+The script should exit with code C<0> for true or code C<3> for false.
+
+=item C<can_fua>
+
+ /path/to/script can_fua <handle>
+
+This controls Forced Unit Access (FUA) behaviour of the core server.
+
+Unlike the other C<can_*> callbacks, this one is I<not> a boolean. It
+must print either "none", "emulate" or "native" to stdout. The
+meaning of these is described in L<nbdkit-plugin(3)>.
+
+=item C<can_multi_conn>
+
+ /path/to/script can_multi_conn <handle>
+
+The script should exit with code C<0> for true or code C<3> for false.
+
+=item C<pread>
+
+ /path/to/script pread <handle> <count> <offset>
+
+The script should print the requested binary data on stdout. Exactly
+C<count> bytes must be printed.
+
+This method is required.
+
+=item C<pwrite>
+
+ /path/to/script pwrite <handle> <count> <offset> <flags>
+
+The script should read the binary data to be written from stdin.
+
+The C<flags> parameter can be an empty string or C<"fua">. In the
+future, a comma-separated list of flags may be present.
+
+Unlike in other languages, if you provide a C<pwrite> method you
+B<must> also provide a C<can_write> method which exits with code C<0>
+(true).
+
+=item C<flush>
+
+ /path/to/script flush <handle>
+
+Unlike in other languages, if you provide a C<flush> method you
+B<must> also provide a C<can_flush> method which exits with code C<0>
+(true).
+
+=item C<trim>
+
+ /path/to/script trim <handle> <count> <offset> <flags>
+
+The C<flags> parameter can be an empty string or C<"fua">. In the
+future, a comma-separated list of flags may be present.
+
+Unlike in other languages, if you provide a C<trim> method you B<must>
+also provide a C<can_trim> method which exits with code C<0> (true).
+
+=item C<zero>
+
+ /path/to/script zero <handle> <count> <offset> <flags>
+
+The C<flags> parameter can be an empty string or a comma-separated
+list of the flags: C<"fua"> and C<"may_trim"> (eg. C<"">, C<"fua">,
+C<"fua,may_trim"> are all possible values).
+
+Unlike in other languages, if you provide a C<zero> method you B<must>
+also provide a C<can_zero> method which exits with code C<0> (true).
+
+=item C<extents>
+
+ /path/to/script extents <handle> <count> <offset> <flags>
+
+The C<flags> parameter can be an empty string or C<"req_one">.
+
+This must print, one per line on stdout, a list of one or more extents
+in the format:
+
+ offset length type
+
+which correspond to the inputs of the C C<nbdkit_add_extent> function
+(see L<nbdkit-plugin(3)>). The C<offset> and C<length> fields may use
+any format understood by C<nbdkit_parse_size>. The optional C<type>
+field may be an integer, missing (same as 0), or a comma-separated
+list of the words C<hole> and C<zero>. An example of a valid set of
+extents covering a C<10M> disk where the first megabyte only is
+allocated data:
+
+ 0 1M
+ 1M 9M hole,zero
+
+Unlike in other languages, if you provide an C<extents> method you
+B<must> also provide a C<can_extents> method which exits with code
+C<0> (true).
+
+=back
+
+=head2 Missing callbacks
+
+=over 4
+
+=item Missing: C<name>, C<version>, C<longname>,
+C<description>, C<config_help>
+
+These are not yet supported.
+
+=back
+
+=head2 Threads
+
+The thread model for scripts currently cannot be set from this plugin.
+It is hard-coded in the C part to
+C<NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS>. This may change or be
+settable in future.
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/stat.h>
+
+#define NBDKIT_API_VERSION 2
+
+#include <nbdkit-plugin.h>
+
+#include "call.h"
+
+char tmpdir[] = "/tmp/nbdkitshXXXXXX";
+char *script;
+
+static void
+sh_load (void)
+{
+ /* Create the temporary directory for the shell script to use. */
+ if (mkdtemp (tmpdir) == NULL) {
+ nbdkit_error ("mkdtemp: /tmp: %m");
+ exit (EXIT_FAILURE);
+ }
+ nbdkit_debug ("sh: load: tmpdir: %s", tmpdir);
+}
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-result"
+static void
+sh_unload (void)
+{
+ const size_t tmpdir_len = strlen (tmpdir);
+ char cmd[7 + tmpdir_len + 1]; /* "rm -rf " + tmpdir + \0 */
+
+ /* Run the unload method. Ignore all errors. */
+ if (script) {
+ const char *args[] = { script, "unload", NULL };
+
+ call (args);
+ }
+
+ /* Delete the temporary directory. Ignore all errors. */
+ snprintf (cmd, sizeof cmd, "rm -rf %s", tmpdir);
+ system (cmd);
+
+ free (script);
+}
+#pragma GCC diagnostic pop
+
+static void
+sh_dump_plugin (void)
+{
+ const char *args[] = { script, "dump_plugin", NULL };
+ char *o;
+ size_t olen;
+
+ if (script) {
+ /* Call dump_plugin method. */
+ switch (call_read (&o, &olen, args)) {
+ case OK:
+ printf ("%s", o);
+ free (o);
+ break;
+
+ case MISSING:
+ /* Ignore if the method was missing. */
+ break;
+
+ case ERROR:
+ free (o);
+ break;
+
+ case RET_FALSE:
+ nbdkit_error ("%s: %s method returned unexpected code (3/false)",
+ script, "dump_plugin");
+ errno = EIO;
+ return;
+
+ default: abort ();
+ }
+ }
+}
+
+/* This implements the "inline script" feature. Read stdin into a
+ * temporary file and return the name of the file which the caller
+ * must free. For convenience we put the temporary file into tmpdir
+ * but that's an implementation detail.
+ */
+static char *
+inline_script (void)
+{
+ const char scriptname[] = "inline-script.sh";
+ char *filename = NULL;
+ char *cmd = NULL;
+
+ if (asprintf (&filename, "%s/%s", tmpdir, scriptname) == -1) {
+ nbdkit_error ("asprintf: %m");
+ goto err;
+ }
+
+ /* Safe because both the tmpdir and script name are controlled by us
+ * and don't contain characters that need quoting.
+ */
+ if (asprintf (&cmd, "cat > %s", filename) == -1) {
+ nbdkit_error ("asprintf: %m");
+ goto err;
+ }
+
+ if (system (cmd) != 0) {
+ nbdkit_error ("sh: failed to copy inline script to temporary file");
+ goto err;
+ }
+
+ if (chmod (filename, 0500) == -1) {
+ nbdkit_error ("chmod: %s: %m", filename);
+ goto err;
+ }
+
+ free (cmd);
+ return filename;
+
+ err:
+ free (filename);
+ free (cmd);
+ return NULL;
+}
+
+static int
+sh_config (const char *key, const char *value)
+{
+ if (!script) {
+ /* The first parameter MUST be "script". */
+ if (strcmp (key, "script") != 0) {
+ nbdkit_error ("the first parameter must be script=/path/to/script");
+ return -1;
+ }
+
+ /* If the script name is not "-" then it's expected to be a
+ * filename, otherwise it's an inline script which must be read
+ * into a temporary file. Either way we want an absolute path.
+ */
+ if (strcmp (value, "-") != 0)
+ script = nbdkit_realpath (value);
+ else
+ script = inline_script ();
+ if (script == NULL)
+ return -1;
+
+ /* Call the load method. */
+ const char *args[] = { script, "load", NULL };
+ switch (call (args)) {
+ case OK:
+ case MISSING:
+ break;
+
+ case ERROR:
+ return -1;
+
+ case RET_FALSE:
+ nbdkit_error ("%s: %s method returned unexpected code (3/false)",
+ script, "load");
+ errno = EIO;
+ return -1;
+
+ default: abort ();
+ }
+ }
+ else {
+ const char *args[] = { script, "config", key, value, NULL };
+
+ switch (call (args)) {
+ case OK:
+ return 0;
+
+ case MISSING:
+ /* Emulate what core nbdkit does if a config callback is NULL. */
+ nbdkit_error ("%s: this plugin does not need command line configuration",
+ script);
+ return -1;
+
+ case ERROR:
+ return -1;
+
+ case RET_FALSE:
+ nbdkit_error ("%s: %s method returned unexpected code (3/false)",
+ script, "config");
+ errno = EIO;
+ return -1;
+
+ default: abort ();
+ }
+ }
+
+ return 0;
+}
+
+static int
+sh_config_complete (void)
+{
+ const char *args[] = { script, "config_complete", NULL };
+
+ if (!script) {
+ nbdkit_error ("missing script parameter");
+ return -1;
+ }
+
+ switch (call (args)) {
+ case OK:
+ case MISSING:
+ return 0;
+
+ case ERROR:
+ return -1;
+
+ case RET_FALSE:
+ nbdkit_error ("%s: %s method returned unexpected code (3/false)",
+ script, "config_complete");
+ errno = EIO;
+ return -1;
+
+ default: abort ();
+ }
+}
+
+static void *
+sh_open (int readonly)
+{
+ char *h = NULL;
+ size_t hlen;
+ const char *args[] = { script, "open", readonly ? "true" : "false", NULL };
+
+ /* We store the string returned by open in the handle. */
+ switch (call_read (&h, &hlen, args)) {
+ case OK:
+ /* Remove final newline if present. */
+ if (hlen > 0 && h[hlen-1] == '\n') {
+ h[hlen-1] = '\0';
+ hlen--;
+ }
+ if (hlen > 0)
+ nbdkit_debug ("sh: handle: %s", h);
+ return h;
+
+ case MISSING:
+ /* Unlike regular C plugins, open is not required. If it is
+ * missing then we return "" as the handle. Allocate a new string
+ * for it because we don't know what call_read returned here.
+ */
+ free (h);
+ h = strdup ("");
+ if (h == NULL)
+ nbdkit_error ("strdup: %m");
+ return h;
+
+ case ERROR:
+ free (h);
+ return NULL;
+
+ case RET_FALSE:
+ free (h);
+ nbdkit_error ("%s: %s method returned unexpected code (3/false)",
+ script, "open");
+ errno = EIO;
+ return NULL;
+
+ default: abort ();
+ }
+}
+
+static void
+sh_close (void *handle)
+{
+ char *h = handle;
+ const char *args[] = { script, "close", h, NULL };
+
+ switch (call (args)) {
+ case OK:
+ case MISSING:
+ case ERROR:
+ case RET_FALSE:
+ free (h);
+ return;
+ default: abort ();
+ }
+}
+
+static int64_t
+sh_get_size (void *handle)
+{
+ char *h = handle;
+ const char *args[] = { script, "get_size", h, NULL };
+ char *s = NULL;
+ size_t slen;
+ int64_t r;
+
+ switch (call_read (&s, &slen, args)) {
+ case OK:
+ if (slen > 0 && s[slen-1] == '\n')
+ s[slen-1] = '\0';
+ r = nbdkit_parse_size (s);
+ if (r == -1)
+ nbdkit_error ("%s: could not parse output from get_size method: %s",
+ script, s);
+ free (s);
+ return r;
+
+ case MISSING:
+ free (s);
+ nbdkit_error ("%s: the get_size method is required", script);
+ return -1;
+
+ case ERROR:
+ free (s);
+ return -1;
+
+ case RET_FALSE:
+ free (s);
+ nbdkit_error ("%s: %s method returned unexpected code (3/false)",
+ script, "get_size");
+ errno = EIO;
+ return -1;
+
+ default: abort ();
+ }
+}
+
+static int
+sh_pread (void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ char *h = handle;
+ char cbuf[32], obuf[32];
+ const char *args[] = { script, "pread", h, cbuf, obuf, NULL };
+ char *data = NULL;
+ size_t len;
+
+ snprintf (cbuf, sizeof cbuf, "%" PRIu32, count);
+ snprintf (obuf, sizeof obuf, "%" PRIu64, offset);
+
+ switch (call_read (&data, &len, args)) {
+ case OK:
+ if (count != len) {
+ nbdkit_error ("%s: incorrect amount of data read: "
+ "expecting %" PRIu32 " bytes but "
+ "received %zu bytes from the script",
+ script, count, len);
+ free (data);
+ return -1;
+ }
+ memcpy (buf, data, count);
+ free (data);
+ return 0;
+
+ case MISSING:
+ free (data);
+ nbdkit_error ("%s: the pread method is required", script);
+ return -1;
+
+ case ERROR:
+ free (data);
+ return -1;
+
+ case RET_FALSE:
+ free (data);
+ nbdkit_error ("%s: %s method returned unexpected code (3/false)",
+ script, "pread");
+ errno = EIO;
+ return -1;
+
+ default: abort ();
+ }
+}
+
+/* Convert NBDKIT_FLAG_* to flags string. */
+static void flag_append (const char *str, bool *comma, char **buf, size_t *len);
+
+static void
+flags_string (uint32_t flags, char *buf, size_t len)
+{
+ bool comma = false;
+
+ if (flags & NBDKIT_FLAG_FUA)
+ flag_append ("fua", &comma, &buf, &len);
+
+ if (flags & NBDKIT_FLAG_MAY_TRIM)
+ flag_append ("may_trim", &comma, &buf, &len);
+
+ if (flags & NBDKIT_FLAG_REQ_ONE)
+ flag_append ("req_one", &comma, &buf, &len);
+}
+
+static void
+flag_append (const char *str, bool *comma, char **buf, size_t *len)
+{
+ size_t slen = strlen (str);
+
+ if (*comma) {
+ /* Too short flags buffer is an internal error so abort. */
+ if (*len <= 1) abort ();
+ strcpy (*buf, ",");
+ (*buf)++;
+ (*len)--;
+ }
+
+ if (*len <= slen) abort ();
+ strcpy (*buf, str);
+ (*buf) += slen;
+ (*len) -= slen;
+
+ *comma = true;
+}
+
+static int
+sh_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ char *h = handle;
+ char cbuf[32], obuf[32], fbuf[32];
+ const char *args[] = { script, "pwrite", h, cbuf, obuf, fbuf, NULL };
+
+ snprintf (cbuf, sizeof cbuf, "%" PRIu32, count);
+ snprintf (obuf, sizeof obuf, "%" PRIu64, offset);
+ flags_string (flags, fbuf, sizeof fbuf);
+
+ switch (call_write (buf, count, args)) {
+ case OK:
+ return 0;
+
+ case MISSING:
+ nbdkit_error ("pwrite not implemented");
+ return -1;
+
+ case ERROR:
+ return -1;
+
+ case RET_FALSE:
+ nbdkit_error ("%s: %s method returned unexpected code (3/false)",
+ script, "pwrite");
+ errno = EIO;
+ return -1;
+
+ default: abort ();
+ }
+}
+
+/* Common code for handling all boolean methods like can_write etc. */
+static int
+boolean_method (void *handle, const char *method_name)
+{
+ char *h = handle;
+ const char *args[] = { script, method_name, h, NULL };
+
+ switch (call (args)) {
+ case OK: /* true */
+ return 1;
+ case RET_FALSE: /* false */
+ return 0;
+ case MISSING: /* missing => assume false */
+ return 0;
+ case ERROR: /* error cases */
+ return -1;
+ default: abort ();
+ }
+}
+
+static int
+sh_can_write (void *handle)
+{
+ return boolean_method (handle, "can_write");
+}
+
+static int
+sh_can_flush (void *handle)
+{
+ return boolean_method (handle, "can_flush");
+}
+
+static int
+sh_is_rotational (void *handle)
+{
+ return boolean_method (handle, "is_rotational");
+}
+
+static int
+sh_can_trim (void *handle)
+{
+ return boolean_method (handle, "can_trim");
+}
+
+static int
+sh_can_zero (void *handle)
+{
+ return boolean_method (handle, "can_zero");
+}
+
+static int
+sh_can_extents (void *handle)
+{
+ return boolean_method (handle, "can_extents");
+}
+
+/* Not a boolean method, the method prints "none", "emulate" or "native". */
+static int
+sh_can_fua (void *handle)
+{
+ char *h = handle;
+ const char *args[] = { script, "can_fua", h, NULL };
+ char *s = NULL;
+ size_t slen;
+ int r;
+
+ switch (call_read (&s, &slen, args)) {
+ case OK:
+ if (slen > 0 && s[slen-1] == '\n')
+ s[slen-1] = '\0';
+ if (strcasecmp (s, "none") == 0)
+ r = NBDKIT_FUA_NONE;
+ else if (strcasecmp (s, "emulate") == 0)
+ r = NBDKIT_FUA_EMULATE;
+ else if (strcasecmp (s, "native") == 0)
+ r = NBDKIT_FUA_NATIVE;
+ else {
+ nbdkit_error ("%s: could not parse output from can_fua method: %s",
+ script, s);
+ r = -1;
+ }
+ free (s);
+ return r;
+
+ case MISSING:
+ free (s);
+ /* NBDKIT_FUA_EMULATE means that nbdkit will call .flush. However
+ * we cannot know if that callback exists, so the safest default
+ * is to return NBDKIT_FUA_NONE.
+ */
+ return NBDKIT_FUA_NONE;
+
+ case ERROR:
+ free (s);
+ return -1;
+
+ case RET_FALSE:
+ free (s);
+ nbdkit_error ("%s: %s method returned unexpected code (3/false)",
+ script, "can_fua");
+ errno = EIO;
+ return -1;
+
+ default: abort ();
+ }
+}
+
+static int
+sh_can_multi_conn (void *handle)
+{
+ return boolean_method (handle, "can_multi_conn");
+}
+
+static int
+sh_flush (void *handle, uint32_t flags)
+{
+ char *h = handle;
+ const char *args[] = { script, "flush", h, NULL };
+
+ switch (call (args)) {
+ case OK:
+ return 0;
+
+ case MISSING:
+ /* Ignore lack of flush callback. */
+ return 0;
+
+ case ERROR: /* error cases */
+ return -1;
+
+ case RET_FALSE:
+ nbdkit_error ("%s: %s method returned unexpected code (3/false)",
+ script, "flush");
+ errno = EIO;
+ return -1;
+
+ default: abort ();
+ }
+}
+
+static int
+sh_trim (void *handle, uint32_t count, uint64_t offset, uint32_t flags)
+{
+ char *h = handle;
+ char cbuf[32], obuf[32], fbuf[32];
+ const char *args[] = { script, "trim", h, cbuf, obuf, fbuf, NULL };
+
+ snprintf (cbuf, sizeof cbuf, "%" PRIu32, count);
+ snprintf (obuf, sizeof obuf, "%" PRIu64, offset);
+ flags_string (flags, fbuf, sizeof fbuf);
+
+ switch (call (args)) {
+ case OK:
+ return 0;
+
+ case MISSING:
+ /* Ignore lack of trim callback. */
+ return 0;
+
+ case ERROR:
+ return -1;
+
+ case RET_FALSE:
+ nbdkit_error ("%s: %s method returned unexpected code (3/false)",
+ script, "trim");
+ errno = EIO;
+ return -1;
+
+ default: abort ();
+ }
+}
+
+static int
+sh_zero (void *handle, uint32_t count, uint64_t offset, uint32_t flags)
+{
+ char *h = handle;
+ char cbuf[32], obuf[32], fbuf[32];
+ const char *args[] = { script, "zero", h, cbuf, obuf, fbuf, NULL };
+
+ snprintf (cbuf, sizeof cbuf, "%" PRIu32, count);
+ snprintf (obuf, sizeof obuf, "%" PRIu64, offset);
+ flags_string (flags, fbuf, sizeof fbuf);
+
+ switch (call (args)) {
+ case OK:
+ return 0;
+
+ case MISSING:
+ nbdkit_debug ("zero falling back to pwrite");
+ errno = EOPNOTSUPP;
+ return -1;
+
+ case ERROR:
+ return -1;
+
+ case RET_FALSE:
+ nbdkit_error ("%s: %s method returned unexpected code (3/false)",
+ script, "zero");
+ errno = EIO;
+ return -1;
+
+ default: abort ();
+ }
+}
+
+static int
+parse_extents (const char *s, size_t slen, struct nbdkit_extents *extents)
+{
+ FILE *fp = NULL;
+ char *line = NULL;
+ size_t linelen = 0;
+ ssize_t len;
+ int ret = -1;
+
+ fp = fmemopen ((void *) s, slen, "r");
+ if (!fp) {
+ nbdkit_error ("%s: extents: fmemopen: %m", script);
+ goto out;
+ }
+
+ while ((len = getline (&line, &linelen, fp)) != -1) {
+ const char *delim = " \t";
+ char *sp, *p;
+ int64_t offset, length;
+ uint32_t type;
+
+ if (len > 0 && line[len-1] == '\n') {
+ line[len-1] = '\0';
+ len--;
+ }
+
+ if ((p = strtok_r (line, delim, &sp)) == NULL) {
+ parse_error:
+ nbdkit_error ("%s: extents: cannot parse %s", script, line);
+ goto out;
+ }
+ offset = nbdkit_parse_size (p);
+ if (offset == -1)
+ goto out;
+
+ if ((p = strtok_r (NULL, delim, &sp)) == NULL)
+ goto parse_error;
+ length = nbdkit_parse_size (p);
+ if (length == -1)
+ goto out;
+
+ if ((p = strtok_r (NULL, delim, &sp)) == NULL)
+ /* empty type field means allocated data (0) */
+ type = 0;
+ else if (sscanf (p, "%" SCNu32, &type) == 1)
+ ;
+ else {
+ type = 0;
+ if (strstr (p, "hole") != NULL)
+ type |= NBDKIT_EXTENT_HOLE;
+ if (strstr (p, "zero") != NULL)
+ type |= NBDKIT_EXTENT_ZERO;
+ }
+
+ nbdkit_debug ("%s: adding extent %" PRIi64 " %" PRIi64 " %" PRIu32,
+ script, offset, length, type);
+ if (nbdkit_add_extent (extents, offset, length, type) == -1)
+ goto out;
+ }
+
+ ret = 0;
+
+ out:
+ free (line);
+ if (fp)
+ fclose (fp);
+ return ret;
+}
+
+static int
+sh_extents (void *handle, uint32_t count, uint64_t offset, uint32_t flags,
+ struct nbdkit_extents *extents)
+{
+ char *h = handle;
+ char cbuf[32], obuf[32], fbuf[32];
+ const char *args[] = { script, "extents", h, cbuf, obuf, fbuf, NULL };
+ char *s = NULL;
+ size_t slen;
+ int r;
+
+ snprintf (cbuf, sizeof cbuf, "%" PRIu32, count);
+ snprintf (obuf, sizeof obuf, "%" PRIu64, offset);
+ flags_string (flags, fbuf, sizeof fbuf);
+
+ switch (call_read (&s, &slen, args)) {
+ case OK:
+ r = parse_extents (s, slen, extents);
+ free (s);
+ return r;
+
+ case MISSING:
+ /* extents method should not have been called unless the script
+ * defined a can_extents method which returns true, so if this
+ * happens it's a script error.
+ */
+ free (s);
+ nbdkit_error ("%s: can_extents returned true, "
+ "but extents method is not defined",
+ script);
+ errno = EIO;
+ return -1;
+
+ case ERROR:
+ free (s);
+ return -1;
+
+ case RET_FALSE:
+ free (s);
+ nbdkit_error ("%s: %s method returned unexpected code (3/false)",
+ script, "can_fua");
+ errno = EIO;
+ return -1;
+
+ default: abort ();
+ }
+}
+
+#define sh_config_help \
+ "script=<FILENAME> (required) The shell script to run.\n" \
+ "[other arguments may be used by the plugin that you load]"
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+
+static struct nbdkit_plugin plugin = {
+ .name = "sh",
+ .version = PACKAGE_VERSION,
+ .load = sh_load,
+ .unload = sh_unload,
+
+ .dump_plugin = sh_dump_plugin,
+
+ .config = sh_config,
+ .config_complete = sh_config_complete,
+ .config_help = sh_config_help,
+
+ .open = sh_open,
+ .close = sh_close,
+
+ .get_size = sh_get_size,
+ .can_write = sh_can_write,
+ .can_flush = sh_can_flush,
+ .is_rotational = sh_is_rotational,
+ .can_trim = sh_can_trim,
+ .can_zero = sh_can_zero,
+ .can_extents = sh_can_extents,
+ .can_fua = sh_can_fua,
+ .can_multi_conn = sh_can_multi_conn,
+
+ .pread = sh_pread,
+ .pwrite = sh_pwrite,
+ .flush = sh_flush,
+ .trim = sh_trim,
+ .zero = sh_zero,
+ .extents = sh_extents,
+
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+# nbdkit
+# Copyright (C) 2017 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-split-plugin.pod
+
+plugin_LTLIBRARIES = nbdkit-split-plugin.la
+
+nbdkit_split_plugin_la_SOURCES = \
+ split.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_split_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_split_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_split_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-split-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-split-plugin.1: nbdkit-split-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2017 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
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+ elif test -n '$(MAKE_HOST)'; then \
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+ else \
+ false; \
+ fi; \
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+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+ else \
+ test -f "$(distdir)/$$file" \
+ || cp -p $$d/$$file "$(distdir)/$$file" \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES) $(MANS)
+installdirs:
+ for dir in "$(DESTDIR)$(plugindir)" "$(DESTDIR)$(man1dir)"; do \
+ test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+ done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+ if test -z '$(STRIP)'; then \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ install; \
+ else \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
+
+clean-generic:
+ -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pluginLTLIBRARIES \
+ mostlyclean-am
+
+distclean: distclean-am
+ -rm -f ./$(DEPDIR)/nbdkit_split_plugin_la-split.Plo
+ -rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-man install-pluginLTLIBRARIES
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man: install-man1
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f ./$(DEPDIR)/nbdkit_split_plugin_la-split.Plo
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-man uninstall-pluginLTLIBRARIES
+
+uninstall-man: uninstall-man1
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+ clean-generic clean-libtool clean-pluginLTLIBRARIES \
+ cscopelist-am ctags ctags-am distclean distclean-compile \
+ distclean-generic distclean-libtool distclean-tags distdir dvi \
+ dvi-am html html-am info info-am install install-am \
+ install-data install-data-am install-dvi install-dvi-am \
+ install-exec install-exec-am install-html install-html-am \
+ install-info install-info-am install-man install-man1 \
+ install-pdf install-pdf-am install-pluginLTLIBRARIES \
+ install-ps install-ps-am install-strip installcheck \
+ installcheck-am installdirs maintainer-clean \
+ maintainer-clean-generic mostlyclean mostlyclean-compile \
+ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+ tags tags-am uninstall uninstall-am uninstall-man \
+ uninstall-man1 uninstall-pluginLTLIBRARIES
+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-split-plugin.1: nbdkit-split-plugin.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+=head1 NAME
+
+nbdkit-split-plugin - nbdkit plugin to concatenate split files into one disk
+
+=head1 SYNOPSIS
+
+ nbdkit split [file=]file1 [[file=]file2 [file=]file3 ...]
+
+=head1 DESCRIPTION
+
+C<nbdkit-split-plugin> is a file plugin for L<nbdkit(1)>. One or more
+filenames may be given using the C<FILENAME> parameter. These
+files are logically concatenated into a single disk image.
+
+If you want to add a virtual partition table, see
+L<nbdkit-partitioning-plugin(1)>.
+
+=head2 Differences from nbdkit-file-plugin
+
+Normally to serve a single file you should use
+L<nbdkit-file-plugin(1)>. This plugin differs from nbdkit-file-plugin
+as follows:
+
+=over 4
+
+=item *
+
+nbdkit-file-plugin is faster and more efficient. It has a fully
+parallel implementation, and does not have to deal with the complexity
+of locating the correct file to serve or splitting requests across
+files.
+
+=item *
+
+nbdkit-file-plugin allows you to resize the underlying file
+dynamically. The underlying files must B<not> be resized when using
+the split plugin.
+
+=item *
+
+nbdkit-file-plugin can handle block devices, but the split plugin can
+only handle plain files.
+
+=item *
+
+nbdkit-file-plugin handles writes of blocks of zeroes efficiently, but
+the split plugin cannot.
+
+=item *
+
+nbdkit-file-plugin can "punch holes" in the backing file in response
+to a trim request from the client, but the split plugin does not
+support this.
+
+=back
+
+=head1 PARAMETERS
+
+=over 4
+
+=item [B<file=>]FILENAME
+
+One or more files to open. They are logically concatenated in
+the order they appear on the command line.
+
+This parameter must appear at least once.
+
+C<file=> is a magic config key and may be omitted in most cases.
+See L<nbdkit(1)/Magic parameters>.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<nbdkit-file-plugin(1)>,
+L<nbdkit-partitioning-plugin(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2017 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <nbdkit-plugin.h>
+
+#ifndef O_CLOEXEC
+#define O_CLOEXEC 0
+#endif
+
+/* The files. */
+static char **filenames = NULL;
+static size_t nr_files = 0;
+
+static void
+split_unload (void)
+{
+ size_t i;
+
+ for (i = 0; i < nr_files; ++i)
+ free (filenames[i]);
+ free (filenames);
+}
+
+static int
+split_config (const char *key, const char *value)
+{
+ char **new_filenames;
+
+ if (strcmp (key, "file") == 0) {
+ new_filenames = realloc (filenames, (nr_files+1) * sizeof (char *));
+ if (new_filenames == NULL) {
+ nbdkit_error ("malloc: %m");
+ return -1;
+ }
+ filenames = new_filenames;
+ filenames[nr_files] = nbdkit_realpath (value);
+ if (filenames[nr_files] == NULL)
+ return -1;
+ nr_files++;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+#define split_config_help \
+ "file=<FILENAME> (required) File(s) to serve."
+
+/* The per-connection handle. */
+struct handle {
+ struct file *files;
+ uint64_t size; /* Total concatenated size. */
+};
+
+struct file {
+ uint64_t offset, size;
+ int fd;
+};
+
+/* Create the per-connection handle. */
+static void *
+split_open (int readonly)
+{
+ struct handle *h;
+ int flags;
+ size_t i;
+ uint64_t offset;
+ struct stat statbuf;
+
+ h = malloc (sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+
+ h->files = malloc (nr_files * sizeof (struct file));
+ if (h->files == NULL) {
+ nbdkit_error ("malloc: %m");
+ free (h);
+ return NULL;
+ }
+ for (i = 0; i < nr_files; ++i)
+ h->files[i].fd = -1;
+
+ /* Open the files. */
+ flags = O_CLOEXEC|O_NOCTTY;
+ if (readonly)
+ flags |= O_RDONLY;
+ else
+ flags |= O_RDWR;
+
+ for (i = 0; i < nr_files; ++i) {
+ h->files[i].fd = open (filenames[i], flags);
+ if (h->files[i].fd == -1) {
+ nbdkit_error ("open: %s: %m", filenames[i]);
+ goto err;
+ }
+ }
+
+ offset = 0;
+ for (i = 0; i < nr_files; ++i) {
+ h->files[i].offset = offset;
+
+ if (fstat (h->files[i].fd, &statbuf) == -1) {
+ nbdkit_error ("stat: %s: %m", filenames[i]);
+ goto err;
+ }
+ h->files[i].size = statbuf.st_size;
+ offset += statbuf.st_size;
+
+ nbdkit_debug ("file[%zu]=%s: offset=%" PRIu64 ", size=%" PRIu64,
+ i, filenames[i], h->files[i].offset, h->files[i].size);
+ }
+ h->size = offset;
+ nbdkit_debug ("total size=%" PRIu64, h->size);
+
+ return h;
+
+ err:
+ for (i = 0; i < nr_files; ++i) {
+ if (h->files[i].fd >= 0)
+ close (h->files[i].fd);
+ }
+ free (h->files);
+ free (h);
+ return NULL;
+}
+
+/* Free up the per-connection handle. */
+static void
+split_close (void *handle)
+{
+ struct handle *h = handle;
+ size_t i;
+
+ for (i = 0; i < nr_files; ++i)
+ close (h->files[i].fd);
+ free (h->files);
+ free (h);
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS
+
+/* Get the disk size. */
+static int64_t
+split_get_size (void *handle)
+{
+ struct handle *h = handle;
+
+ return (int64_t) h->size;
+}
+
+/* Helper function to map the offset to the correct file. */
+static int
+compare_offset (const void *offsetp, const void *filep)
+{
+ const uint64_t offset = *(uint64_t *)offsetp;
+ const struct file *file = (struct file *)filep;
+
+ if (offset < file->offset) return -1;
+ if (offset >= file->offset + file->size) return 1;
+ return 0;
+}
+
+static struct file *
+get_file (struct handle *h, uint64_t offset)
+{
+ return bsearch (&offset, h->files,
+ nr_files, sizeof (struct file),
+ compare_offset);
+}
+
+/* Read data. */
+static int
+split_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ struct handle *h = handle;
+
+ while (count > 0) {
+ struct file *file = get_file (h, offset);
+ uint64_t foffs = offset - file->offset;
+ uint64_t max;
+ ssize_t r;
+
+ max = file->size - foffs;
+ if (max > count)
+ max = count;
+
+ r = pread (file->fd, buf, max, foffs);
+ if (r == -1) {
+ nbdkit_error ("pread: %m");
+ return -1;
+ }
+ if (r == 0) {
+ nbdkit_error ("pread: unexpected end of file");
+ return -1;
+ }
+ buf += r;
+ count -= r;
+ offset += r;
+ }
+
+ return 0;
+}
+
+/* Write data to the file. */
+static int
+split_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset)
+{
+ struct handle *h = handle;
+
+ while (count > 0) {
+ struct file *file = get_file (h, offset);
+ uint64_t foffs = offset - file->offset;
+ uint64_t max;
+ ssize_t r;
+
+ max = file->size - foffs;
+ if (max > count)
+ max = count;
+
+ r = pwrite (file->fd, buf, max, offset);
+ if (r == -1) {
+ nbdkit_error ("pwrite: %m");
+ return -1;
+ }
+ buf += r;
+ count -= r;
+ offset += r;
+ }
+
+ return 0;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "split",
+ .version = PACKAGE_VERSION,
+ .unload = split_unload,
+ .config = split_config,
+ .config_help = split_config_help,
+ .magic_config_key = "file",
+ .open = split_open,
+ .close = split_close,
+ .get_size = split_get_size,
+ .pread = split_pread,
+ .pwrite = split_pwrite,
+ /* In this plugin, errno is preserved properly along error return
+ * paths from failed system calls.
+ */
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+# nbdkit
+# Copyright (C) 2014-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-ssh-plugin.pod
+
+if HAVE_SSH
+
+plugin_LTLIBRARIES = nbdkit-ssh-plugin.la
+
+nbdkit_ssh_plugin_la_SOURCES = \
+ ssh.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_ssh_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include
+nbdkit_ssh_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS) \
+ $(SSH_CFLAGS)
+nbdkit_ssh_plugin_la_LIBADD = \
+ $(SSH_LIBS)
+nbdkit_ssh_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-ssh-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-ssh-plugin.1: nbdkit-ssh-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+
+endif
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2014-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
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+ else \
+ false; \
+ fi; \
+}
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+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
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+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
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+@am__fastdepCC_TRUE@ $(AM_V_CC)$(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=compile $(CC) $(DEFS) $(DEFAULT_INCLUDES) $(INCLUDES) $(nbdkit_ssh_plugin_la_CPPFLAGS) $(CPPFLAGS) $(nbdkit_ssh_plugin_la_CFLAGS) $(CFLAGS) -MT nbdkit_ssh_plugin_la-ssh.lo -MD -MP -MF $(DEPDIR)/nbdkit_ssh_plugin_la-ssh.Tpo -c -o nbdkit_ssh_plugin_la-ssh.lo `test -f 'ssh.c' || echo '$(srcdir)/'`ssh.c
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+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@@HAVE_SSH_TRUE@nbdkit-ssh-plugin.1: nbdkit-ssh-plugin.pod
+@HAVE_POD_TRUE@@HAVE_SSH_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@@HAVE_SSH_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@@HAVE_SSH_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+=head1 NAME
+
+nbdkit-ssh-plugin - access disk images over the SSH protocol
+
+=head1 SYNOPSIS
+
+ nbdkit ssh host=HOST [path=]PATH
+ [config=CONFIG_FILE] [identity=FILENAME]
+ [known-hosts=FILENAME] [password=PASSWORD|-|+FILENAME]
+ [port=PORT] [timeout=SECS] [user=USER]
+ [verify-remote-host=false]
+
+=head1 DESCRIPTION
+
+This is an L<nbdkit(1)> plugin which lets you access remote disk
+images over Secure Shell (SSH). Any server which hosts disk images
+and runs an SSH server can be turned into an NBD source using this
+plugin.
+
+=head1 EXAMPLES
+
+=over 4
+
+=item nbdkit ssh host=ssh.example.com disk.img
+
+Open a file called F<disk.img> on remote host C<ssh.example.com>.
+Because the pathname is relative, it is opened relative to the user’s
+home directory on the remote server.
+
+The remote file can be read or written. To force read-only access add
+the I<-r> flag.
+
+=item nbdkit ssh host=ssh.example.com disk.img user=bob
+
+As above but log in using username C<bob> (instead of trying the local
+username).
+
+=back
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<config=>CONFIG_FILE
+
+Read local SSH configuration from an alternate configuration file.
+Libssh expands some C<%>-sequences in C<CONFIG_FILE>, see
+L</Path expansion> below. C<CONFIG_FILE> must expand to an absolute
+path.
+
+=item B<config=>
+
+Do not read any local SSH configuration.
+
+The C<config> parameter is optional. If it is I<not> specified at all
+then F<~/.ssh/config> and F</etc/ssh/ssh_config> are both read.
+Missing or unreadable files are ignored.
+
+=item B<host=>HOST
+
+Specify the name or IP address of the remote host.
+
+This parameter is required.
+
+=item B<identity=>FILENAME
+
+Prepend the private key (identity) C<FILENAME> to the list of identity
+files used. Libssh examines several identity files by default such as
+F<~/.ssh/id_ed25519>, F<~/.ssh/id_ecdsa>, F<~/.ssh/id_rsa> and
+F<~/.ssh/id_dsa>. Libssh expands some C<%>-sequences in C<FILENAME>,
+see L</Path expansion> below. C<FILENAME> must expand to an absolute
+path.
+
+You can give this parameter multiple times.
+
+=item B<known-hosts=>FILENAME
+
+Set name of the file which records the identity of previously seen
+hosts. Libssh expands some C<%>-sequences in C<FILENAME>, see
+L</Path expansion> below. C<FILENAME> must expand to an absolute
+path.
+
+The default is to check F<~/.ssh/known_hosts> followed by
+F</etc/ssh/ssh_known_hosts>.
+
+=item B<password=>PASSWORD
+
+Set the password to use when connecting to the remote server.
+
+Note that passing this on the command line is not secure on shared
+machines.
+
+=item B<password=->
+
+Ask for the password (interactively) when nbdkit starts up.
+
+=item B<password=+>FILENAME
+
+Read the password from the named file. This is the most secure method
+to supply a password, as long as you set the permissions on the file
+appropriately.
+
+=item [B<path=>]PATH
+
+Specify the path to the remote file. This can be a relative path in
+which case it is relative to the remote home directory.
+
+This parameter is required.
+
+C<path=> is a magic config key and may be omitted in most cases.
+See L<nbdkit(1)/Magic parameters>.
+
+=item B<port=>PORT
+
+Specify the SSH protocol port name or number.
+
+This parameter is optional. If not given then the default ssh port is
+used.
+
+=item B<timeout=>SECS
+
+Set the SSH connection timeout in seconds.
+
+=item B<user=>USER
+
+Specify the remote username.
+
+This parameter is optional. If not given then the local username is
+used.
+
+=item B<verify-remote-host=true>
+
+=item B<verify-remote-host=false>
+
+Set whether or not we verify the remote host is one we have previously
+seen, using a local file such as F<~/.ssh/known_hosts>. The default
+is C<true>, meaning that we verify the remote host’s identity has not
+changed.
+
+Setting this to C<false> is dangerous because it allows a
+Man-In-The-Middle (MITM) attack to be conducted against you.
+
+=back
+
+=head1 NOTES
+
+=head2 Known hosts
+
+The SSH server’s host key is checked at connection time, and must be
+present and correct in the local "known hosts" file.
+
+If you have never connected to the SSH server before then the
+connection will usually fail. You can:
+
+=over 4
+
+=item *
+
+connect to the server first using L<ssh(1)> so you can manually accept
+the host key, or
+
+=item *
+
+provide the host key in an alternate file which you specify using the
+C<known-hosts> option, or
+
+=item *
+
+set I<verify-remote-host=false> on the command line. This latter
+option is dangerous because it allows a MITM attack to be conducted
+against you.
+
+=back
+
+=head2 Supported authentication methods
+
+This plugin supports only the following authentication methods:
+C<none>, C<publickey> or C<password>. In particular note that
+C<keyboard-interactive> is I<not> supported.
+
+=head2 SSH agent
+
+There is no means for nbdkit to ask for the public key passphrase when
+it is running as a server. Therefore C<publickey> authentication must
+be done in conjunction with L<ssh-agent(1)>.
+
+=head2 Path expansion
+
+In the C<config>, C<identity> and C<known-hosts> options, libssh
+expands some C<%>-sequences. Unfortunately there is no escape
+character for C<%> itself, so there is no way to specify that
+character in the path.
+
+=over 4
+
+=item C<%d>
+
+The user’s SSH directory, usually F<~/.ssh>
+
+=item C<%u>
+
+The local username.
+
+=item C<%l>
+
+The local hostname.
+
+=item C<%h>
+
+The remote hostname.
+
+=item C<%r>
+
+The remote username.
+
+=item C<%p>
+
+The SSH port number.
+
+=back
+
+=head1 FILES
+
+=over 4
+
+=item F<~/.ssh/config>
+
+=item F</etc/ssh/ssh_config>
+
+These are the default SSH config files which are read to get other
+options. You can change this using the C<config> option.
+
+=item F<~/.ssh/id_dsa>
+
+=item F<~/.ssh/id_ecdsa>
+
+=item F<~/.ssh/id_ed25519>
+
+=item F<~/.ssh/id_rsa>
+
+These are some of the default private key (identify) files used by
+libssh. You can prepend more to the list using the C<identity>
+option.
+
+=item F<~/.ssh/known_hosts>
+
+=item F</etc/ssh/ssh_known_hosts>
+
+These are the default SSH files recording the identity of previously
+seen hosts. You can change this using the C<known-hosts> option.
+
+=back
+
+=head1 DEBUG FLAGS
+
+=head2 -D ssh.log=[1..4]
+
+Set the libssh log level to increasing levels of verbosity. Each
+level includes messages from the previous levels. Currently
+the levels are:
+
+=over 4
+
+=item B<1>
+
+informational and warning messages
+
+=item B<2>
+
+SSH and SFTP protocol steps
+
+=item B<3>
+
+SSH and SFTP packets
+
+=item B<4>
+
+libssh functions
+
+=back
+
+Use level 2 to diagnose SSH protocol or server problems. Levels 3 and
+4 are extremely verbose and probably only useful if you are debugging
+libssh itself.
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-curl-plugin(1)>,
+L<nbdkit-readahead-filter(1)>,
+L<nbdkit-plugin(3)>,
+L<ssh(1)>,
+L<ssh-agent(1)>,
+L<https://libssh.org>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+Parts derived from Pino Toscano’s qemu libssh driver.
+
+=head1 COPYRIGHT
+
+Copyright (C) 2014-2019 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2014-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include <libssh/libssh.h>
+#include <libssh/sftp.h>
+#include <libssh/callbacks.h>
+
+#include <nbdkit-plugin.h>
+
+#include "minmax.h"
+
+static const char *host = NULL;
+static const char *path = NULL;
+static const char *port = NULL;
+static const char *user = NULL;
+static char *password = NULL;
+static bool verify_remote_host = true;
+static const char *known_hosts = NULL;
+static const char **identity = NULL;
+static size_t nr_identities = 0;
+static long timeout = 0;
+
+/* config can be:
+ * NULL => parse options from default file
+ * "" => do NOT parse options
+ * some filename => parse options from filename
+ */
+static const char *config = NULL;
+
+/* Use '-D ssh.log=N' to set. */
+int ssh_debug_log = 0;
+
+/* If ssh_debug_log > 0 then the library will call this function with
+ * log messages.
+ */
+static void
+log_callback (int priority, const char *function, const char *message, void *vp)
+{
+ const char *levels[] =
+ { "none", "warning", "protocol", "packet", "function" };
+ const size_t nr_levels = sizeof levels / sizeof levels[0];
+ const char *level;
+
+ if (priority >= 0 && priority < nr_levels)
+ level = levels[priority];
+ else
+ level = "unknown";
+
+ /* NB We don't need to print the function parameter because it is
+ * always prefixed to the message.
+ */
+ nbdkit_debug ("libssh: %s: %s", level, message);
+}
+
+static void
+ssh_unload (void)
+{
+ free (identity);
+ free (password);
+}
+
+/* Called for each key=value passed on the command line. */
+static int
+ssh_config (const char *key, const char *value)
+{
+ int r;
+
+ if (strcmp (key, "host") == 0)
+ host = value;
+
+ else if (strcmp (key, "path") == 0)
+ path = value;
+
+ else if (strcmp (key, "port") == 0)
+ port = value;
+
+ else if (strcmp (key, "user") == 0)
+ user = value;
+
+ else if (strcmp (key, "password") == 0) {
+ free (password);
+ if (nbdkit_read_password (value, &password) == -1)
+ return -1;
+ }
+
+ else if (strcmp (key, "config") == 0)
+ config = value; /* %-expanded, cannot use nbdkit_absolute_path */
+
+ else if (strcmp (key, "known-hosts") == 0)
+ known_hosts = value; /* %-expanded, cannot use nbdkit_absolute_path */
+
+ else if (strcmp (key, "identity") == 0) {
+ const char **new_identity =
+ realloc (identity, (nr_identities+1) * sizeof (const char *));
+ if (new_identity == NULL) {
+ nbdkit_error ("realloc: %m");
+ return -1;
+ }
+ identity = new_identity;
+ /* %-expanded, cannot use nbdkit_absolute_path */
+ identity[nr_identities] = value;
+ nr_identities++;
+ }
+
+ else if (strcmp (key, "verify-remote-host") == 0) {
+ r = nbdkit_parse_bool (value);
+ if (r == -1)
+ return -1;
+ verify_remote_host = r;
+ }
+
+ else if (strcmp (key, "timeout") == 0) {
+ if (sscanf (value, "%ld", &timeout) != 1) {
+ nbdkit_error ("cannot parse timeout: %s", value);
+ return -1;
+ }
+ }
+
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* The host and path parameters are mandatory. */
+static int
+ssh_config_complete (void)
+{
+ if (host == NULL || path == NULL) {
+ nbdkit_error ("you must supply the host and path parameters "
+ "after the plugin name on the command line");
+ return -1;
+ }
+
+ return 0;
+}
+
+#define ssh_config_help \
+ "host=<HOST> (required) SSH server hostname.\n" \
+ "[path=]<PATH> (required) SSH remote path.\n" \
+ "port=<PORT> SSH protocol port number.\n" \
+ "user=<USER> SSH user name.\n" \
+ "password=<PASSWORD> SSH password.\n" \
+ "config=<CONFIG> Alternate local SSH configuration file.\n" \
+ "known-hosts=<FILENAME> Set location of known_hosts file.\n" \
+ "identity=<FILENAME> Prepend private key (identity) file.\n" \
+ "timeout=SECS Set SSH connection timeout.\n" \
+ "verify-remote-host=false Ignore known_hosts."
+
+/* The per-connection handle. */
+struct ssh_handle {
+ ssh_session session;
+ sftp_session sftp;
+ sftp_file file;
+};
+
+/* Verify the remote host.
+ * See: http://api.libssh.org/master/libssh_tutor_guided_tour.html
+ */
+static int
+do_verify_remote_host (struct ssh_handle *h)
+{
+ enum ssh_known_hosts_e state;
+ unsigned char *hash = NULL;
+ ssh_key srv_pubkey = NULL;
+ size_t hlen;
+ int rc;
+
+ rc = ssh_get_server_publickey (h->session, &srv_pubkey);
+ if (rc < 0) {
+ nbdkit_error ("could not get server public key");
+ return -1;
+ }
+ rc = ssh_get_publickey_hash (srv_pubkey,
+ SSH_PUBLICKEY_HASH_SHA1,
+ &hash, &hlen);
+ ssh_key_free (srv_pubkey);
+ if (rc < 0) {
+ nbdkit_error ("could not get server public key SHA1 hash");
+ return -1;
+ }
+
+ state = ssh_session_is_known_server (h->session);
+ switch (state) {
+ case SSH_KNOWN_HOSTS_OK:
+ /* OK */
+ break;
+
+ case SSH_KNOWN_HOSTS_CHANGED:
+ nbdkit_error ("host key for server changed");
+ ssh_clean_pubkey_hash (&hash);
+ return -1;
+
+ case SSH_KNOWN_HOSTS_OTHER:
+ nbdkit_error ("host key for server was not found "
+ "but another type of key exists");
+ ssh_clean_pubkey_hash (&hash);
+ return -1;
+
+ case SSH_KNOWN_HOSTS_NOT_FOUND:
+ /* This is not actually an error, but the user must ensure the
+ * host key is set up before using nbdkit so we error out here.
+ */
+ nbdkit_error ("could not find known_hosts file");
+ ssh_clean_pubkey_hash (&hash);
+ return -1;
+
+ case SSH_KNOWN_HOSTS_UNKNOWN:
+ nbdkit_error ("host key is unknown, you must use ssh first "
+ "and accept the host key");
+ ssh_clean_pubkey_hash (&hash);
+ return -1;
+
+ case SSH_KNOWN_HOSTS_ERROR:
+ nbdkit_error ("known hosts error: %s", ssh_get_error (h->session));
+ ssh_clean_pubkey_hash (&hash);
+ return -1;
+ }
+
+ ssh_clean_pubkey_hash (&hash);
+ return 0;
+}
+
+/* Authenticate.
+ * See: http://api.libssh.org/master/libssh_tutor_authentication.html
+ */
+static int
+authenticate_pubkey (ssh_session session)
+{
+ int rc;
+
+ rc = ssh_userauth_publickey_auto (session, NULL, NULL);
+ if (rc == SSH_AUTH_ERROR)
+ nbdkit_debug ("public key authentication failed: %s",
+ ssh_get_error (session));
+
+ return rc;
+}
+
+static int
+authenticate_password (ssh_session session, const char *password)
+{
+ int rc;
+
+ rc = ssh_userauth_password (session, NULL, password);
+ if (rc == SSH_AUTH_ERROR)
+ nbdkit_debug ("password authentication failed: %s",
+ ssh_get_error (session));
+ return rc;
+}
+
+static int
+authenticate (struct ssh_handle *h)
+{
+ int method, rc;
+
+ rc = ssh_userauth_none (h->session, NULL);
+ if (rc == SSH_AUTH_SUCCESS)
+ return 0;
+ if (rc == SSH_AUTH_ERROR)
+ return -1;
+
+ method = ssh_userauth_list (h->session, NULL);
+
+ if (method & SSH_AUTH_METHOD_PUBLICKEY) {
+ rc = authenticate_pubkey (h->session);
+ if (rc == SSH_AUTH_SUCCESS) return 0;
+ }
+
+ /* Example code tries keyboard-interactive here, but we cannot use
+ * that method from a server.
+ */
+
+ if (password != NULL && (method & SSH_AUTH_METHOD_PASSWORD)) {
+ rc = authenticate_password (h->session, password);
+ if (rc == SSH_AUTH_SUCCESS) return 0;
+ }
+
+ nbdkit_error ("all possible authentication methods failed");
+ return -1;
+}
+
+/* Create the per-connection handle. */
+static void *
+ssh_open (int readonly)
+{
+ struct ssh_handle *h;
+ const int set = 1;
+ size_t i;
+ int r;
+ int access_type;
+
+ h = calloc (1, sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("calloc: %m");
+ return NULL;
+ }
+
+ /* Set up the SSH session. */
+ h->session = ssh_new ();
+ if (!h->session) {
+ nbdkit_error ("failed to initialize libssh session");
+ goto err;
+ }
+
+ if (ssh_debug_log > 0) {
+ ssh_options_set (h->session, SSH_OPTIONS_LOG_VERBOSITY, &ssh_debug_log);
+ /* Even though this is setting a "global", we must call it every
+ * time we set the session otherwise messages go to stderr.
+ */
+ ssh_set_log_callback (log_callback);
+ }
+
+ /* Disable Nagle's algorithm which is recommended by the libssh
+ * developers to improve performance of sftp. Ignore any error if
+ * we fail to set this.
+ */
+ ssh_options_set (h->session, SSH_OPTIONS_NODELAY, &set);
+
+ r = ssh_options_set (h->session, SSH_OPTIONS_HOST, host);
+ if (r != SSH_OK) {
+ nbdkit_error ("failed to set host in libssh session: %s: %s",
+ host, ssh_get_error (h->session));
+ goto err;
+ }
+ if (port != NULL) {
+ r = ssh_options_set (h->session, SSH_OPTIONS_PORT_STR, port);
+ if (r != SSH_OK) {
+ nbdkit_error ("failed to set port in libssh session: %s: %s",
+ port, ssh_get_error (h->session));
+ goto err;
+ }
+ }
+ if (user != NULL) {
+ r = ssh_options_set (h->session, SSH_OPTIONS_USER, user);
+ if (r != SSH_OK) {
+ nbdkit_error ("failed to set user in libssh session: %s: %s",
+ user, ssh_get_error (h->session));
+ goto err;
+ }
+ }
+ if (known_hosts != NULL) {
+ r = ssh_options_set (h->session, SSH_OPTIONS_KNOWNHOSTS, known_hosts);
+ if (r != SSH_OK) {
+ nbdkit_error ("failed to set known_hosts in libssh session: %s: %s",
+ known_hosts, ssh_get_error (h->session));
+ goto err;
+ }
+ /* XXX This is still going to read the global file, and there
+ * seems to be no way to disable that. However it doesn't matter
+ * as this file is rarely present.
+ */
+ }
+ for (i = 0; i < nr_identities; ++i) {
+ r = ssh_options_set (h->session, SSH_OPTIONS_ADD_IDENTITY, identity[i]);
+ if (r != SSH_OK) {
+ nbdkit_error ("failed to add identity in libssh session: %s: %s",
+ identity[i], ssh_get_error (h->session));
+ goto err;
+ }
+ }
+ if (timeout > 0) {
+ r = ssh_options_set (h->session, SSH_OPTIONS_TIMEOUT, &timeout);
+ if (r != SSH_OK) {
+ nbdkit_error ("failed to set timeout in libssh session: %ld: %s",
+ timeout, ssh_get_error (h->session));
+ goto err;
+ }
+ }
+
+ /* Read SSH config or alternative file. Must happen last so that
+ * the hostname has been set already.
+ */
+ if (config == NULL) {
+ /* NULL means parse the default files, which are ~/.ssh/config and
+ * /etc/ssh/ssh_config. If either are missing then they are
+ * ignored.
+ */
+ r = ssh_options_parse_config (h->session, NULL);
+ if (r != SSH_OK) {
+ nbdkit_error ("failed to parse local SSH configuration: %s",
+ ssh_get_error (h->session));
+ goto err;
+ }
+ }
+ else if (strcmp (config, "") != 0) {
+ /* User has specified a single file. This function ignores the
+ * case where the file is missing - should we check this? XXX
+ */
+ r = ssh_options_parse_config (h->session, config);
+ if (r != SSH_OK) {
+ nbdkit_error ("failed to parse SSH configuration: %s: %s",
+ config, ssh_get_error (h->session));
+ goto err;
+ }
+ }
+
+ /* Connect. */
+ r = ssh_connect (h->session);
+ if (r != SSH_OK) {
+ nbdkit_error ("failed to connect to remote host: %s: %s",
+ host, ssh_get_error (h->session));
+ goto err;
+ }
+
+ /* Verify the remote host. */
+ if (verify_remote_host && do_verify_remote_host (h) == -1)
+ goto err;
+
+ /* Authenticate. */
+ if (authenticate (h) == -1)
+ goto err;
+
+ /* Open the SFTP connection and file. */
+ h->sftp = sftp_new (h->session);
+ if (!h->sftp) {
+ nbdkit_error ("failed to allocate sftp session: %s",
+ ssh_get_error (h->session));
+ goto err;
+ }
+ r = sftp_init (h->sftp);
+ if (r != SSH_OK) {
+ nbdkit_error ("failed to initialize sftp session: %s",
+ ssh_get_error (h->session));
+ goto err;
+ }
+ access_type = readonly ? O_RDONLY : O_RDWR;
+ h->file = sftp_open (h->sftp, path, access_type, S_IRWXU);
+ if (!h->file) {
+ nbdkit_error ("cannot open file for %s: %s",
+ readonly ? "reading" : "writing",
+ ssh_get_error (h->session));
+ goto err;
+ }
+
+ nbdkit_debug ("opened libssh handle");
+
+ return h;
+
+ err:
+ if (h->file)
+ sftp_close (h->file);
+ if (h->sftp)
+ sftp_free (h->sftp);
+ if (h->session) {
+ ssh_disconnect (h->session);
+ ssh_free (h->session);
+ }
+ free (h);
+ return NULL;
+}
+
+/* Free up the per-connection handle. */
+static void
+ssh_close (void *handle)
+{
+ struct ssh_handle *h = handle;
+ int r;
+
+ r = sftp_close (h->file);
+ if (r != SSH_OK)
+ nbdkit_error ("cannot close file: %s", ssh_get_error (h->session));
+
+ sftp_free (h->sftp);
+ ssh_disconnect (h->session);
+ ssh_free (h->session);
+ free (h);
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS
+
+/* Get the file size. */
+static int64_t
+ssh_get_size (void *handle)
+{
+ struct ssh_handle *h = handle;
+ sftp_attributes attrs;
+ int64_t r;
+
+ attrs = sftp_fstat (h->file);
+ r = attrs->size;
+ sftp_attributes_free (attrs);
+
+ return r;
+}
+
+/* Read data from the remote server. */
+static int
+ssh_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ struct ssh_handle *h = handle;
+ int r;
+ ssize_t rs;
+
+ r = sftp_seek64 (h->file, offset);
+ if (r != SSH_OK) {
+ nbdkit_error ("seek64 failed: %s", ssh_get_error (h->session));
+ return -1;
+ }
+
+ while (count > 0) {
+ rs = sftp_read (h->file, buf, count);
+ if (rs < 0) {
+ nbdkit_error ("read failed: %s (%zd)", ssh_get_error (h->session), rs);
+ return -1;
+ }
+ buf += rs;
+ count -= rs;
+ }
+
+ return 0;
+}
+
+/* Write data to the remote server. */
+static int
+ssh_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset)
+{
+ struct ssh_handle *h = handle;
+ int r;
+ ssize_t rs;
+
+ r = sftp_seek64 (h->file, offset);
+ if (r != SSH_OK) {
+ nbdkit_error ("seek64 failed: %s", ssh_get_error (h->session));
+ return -1;
+ }
+
+ while (count > 0) {
+ /* Openssh has a maximum packet size of 256K, so any write
+ * requests larger than this will fail in a peculiar way. (This
+ * limit doesn't seem to include the SFTP protocol overhead).
+ * Therefore if the count is larger than 128K, reduce the size of
+ * the request. I don't know whether 256K is a limit that applies
+ * to all servers.
+ */
+ rs = sftp_write (h->file, buf, MIN (count, 128*1024));
+ if (rs < 0) {
+ nbdkit_error ("write failed: %s (%zd)", ssh_get_error (h->session), rs);
+ return -1;
+ }
+ buf += rs;
+ count -= rs;
+ }
+
+ return 0;
+}
+
+static int
+ssh_can_flush (void *handle)
+{
+ struct ssh_handle *h = handle;
+
+ /* I added this extension to openssh 6.5 (April 2013). It may not
+ * be available in other SSH servers.
+ */
+ return sftp_extension_supported (h->sftp, "fsync@openssh.com", "1");
+}
+
+static int
+ssh_flush (void *handle)
+{
+ struct ssh_handle *h = handle;
+ int r;
+
+ again:
+ r = sftp_fsync (h->file);
+ if (r == SSH_AGAIN)
+ goto again;
+ else if (r != SSH_OK) {
+ nbdkit_error ("fsync failed: %s", ssh_get_error (h->session));
+ return -1;
+ }
+
+ return 0;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "ssh",
+ .version = PACKAGE_VERSION,
+ .unload = ssh_unload,
+ .config = ssh_config,
+ .config_complete = ssh_config_complete,
+ .config_help = ssh_config_help,
+ .magic_config_key = "path",
+ .open = ssh_open,
+ .close = ssh_close,
+ .get_size = ssh_get_size,
+ .pread = ssh_pread,
+ .pwrite = ssh_pwrite,
+ .can_flush = ssh_can_flush,
+ .flush = ssh_flush,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+# nbdkit
+# Copyright (C) 2014 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-streaming-plugin.pod
+
+plugin_LTLIBRARIES = nbdkit-streaming-plugin.la
+
+nbdkit_streaming_plugin_la_SOURCES = \
+ streaming.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_streaming_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_streaming_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_streaming_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-streaming-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-streaming-plugin.1: nbdkit-streaming-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2014 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+ true; \
+ else \
+ false; \
+ fi; \
+}
+am__make_running_with_option = \
+ case $${target_option-} in \
+ ?) ;; \
+ *) echo "am__make_running_with_option: internal error: invalid" \
+ "target option '$${target_option-}' specified" >&2; \
+ exit 1;; \
+ esac; \
+ has_opt=no; \
+ sane_makeflags=$$MAKEFLAGS; \
+ if $(am__is_gnu_make); then \
+ sane_makeflags=$$MFLAGS; \
+ else \
+ case $$MAKEFLAGS in \
+ *\\[\ \ ]*) \
+ bs=\\; \
+ sane_makeflags=`printf '%s\n' "$$MAKEFLAGS" \
+ | sed "s/$$bs$$bs[$$bs $$bs ]*//g"`;; \
+ esac; \
+ fi; \
+ skip_next=no; \
+ strip_trailopt () \
+ { \
+ flg=`printf '%s\n' "$$flg" | sed "s/$$1.*$$//"`; \
+ }; \
+ for flg in $$sane_makeflags; do \
+ test $$skip_next = yes && { skip_next=no; continue; }; \
+ case $$flg in \
+ *=*|--*) continue;; \
+ -*I) strip_trailopt 'I'; skip_next=yes;; \
+ -*I?*) strip_trailopt 'I';; \
+ -*O) strip_trailopt 'O'; skip_next=yes;; \
+ -*O?*) strip_trailopt 'O';; \
+ -*l) strip_trailopt 'l'; skip_next=yes;; \
+ -*l?*) strip_trailopt 'l';; \
+ -[dEDm]) skip_next=yes;; \
+ -[JT]) skip_next=yes;; \
+ esac; \
+ case $$flg in \
+ *$$target_option*) has_opt=yes; break;; \
+ esac; \
+ done; \
+ test $$has_opt = yes
+am__make_dryrun = (target_option=n; $(am__make_running_with_option))
+am__make_keepgoing = (target_option=k; $(am__make_running_with_option))
+pkgdatadir = $(datadir)/@PACKAGE@
+pkgincludedir = $(includedir)/@PACKAGE@
+pkglibdir = $(libdir)/@PACKAGE@
+pkglibexecdir = $(libexecdir)/@PACKAGE@
+am__cd = CDPATH="$${ZSH_VERSION+.}$(PATH_SEPARATOR)" && cd
+install_sh_DATA = $(install_sh) -c -m 644
+install_sh_PROGRAM = $(install_sh) -c
+install_sh_SCRIPT = $(install_sh) -c
+INSTALL_HEADER = $(INSTALL_DATA)
+transform = $(program_transform_name)
+NORMAL_INSTALL = :
+PRE_INSTALL = :
+POST_INSTALL = :
+NORMAL_UNINSTALL = :
+PRE_UNINSTALL = :
+POST_UNINSTALL = :
+build_triplet = @build@
+host_triplet = @host@
+@HAVE_POD_TRUE@am__append_1 = $(man_MANS)
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+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-streaming-plugin.1: nbdkit-streaming-plugin.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+=head1 NAME
+
+nbdkit-streaming-plugin - nbdkit streaming plugin
+
+=head1 SYNOPSIS
+
+ nbdkit streaming pipe=FILENAME [size=SIZE]
+
+=head1 DESCRIPTION
+
+C<nbdkit-streaming-plugin> is a plugin for L<nbdkit(1)> that can turn
+certain kinds of input into a stream.
+
+If the NBD client opens the NBD port, and writes from the start to the
+end of the disk without seeking backwards, then this plugin will turn
+the resulting disk image into a stream of data which is written to the
+named C<pipe> parameter.
+
+ ┌───────────┐
+ client │ nbdkit │ plugin streams
+ writes ──────▶│ streaming │──────▶ data to pipe
+ │ plugin │
+ └───────────┘
+
+Typical usage is with qemu tools. The following command will I<not>
+work because the output is a pipe or socket:
+
+ qemu-img convert input -O raw pipe
+
+However this will work:
+
+ nbdkit -U - streaming pipe=pipe --run '
+ qemu-img convert -n input -O raw $nbd
+ '
+
+ ┌───────────┐ ┌───────────┐
+ reads │ qemu-img │ │ nbdkit │ plugin streams
+ input ──────▶│ convert │──────▶│ streaming │──────▶ data to pipe
+ file │ command │ │ plugin │
+ └───────────┘ ↑└───────────┘
+ Unix domain socket (-U -)
+
+For use of the I<--run> and I<-U -> options, see
+L<nbdkit-captive(1)>.
+
+=head1 PARAMETERS
+
+=over 4
+
+=item B<pipe=>FILENAME
+
+Write to the named pipe or socket. If the pipe or socket does not
+exist, then it is created (as a named FIFO), otherwise the existing
+pipe or socket is opened and used.
+
+This parameter is required.
+
+=item B<size=>SIZE
+
+Specify the virtual size of the stream.
+
+This parameter is optional. If not specified, then the virtual disk
+appears to the client to be very large (effectively infinite).
+Whether you need to specify this parameter depends on the client.
+Some clients don't check the size and just write/stream, others do
+checks or calculations based on the apparent size.
+
+=back
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2014 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2014 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <errno.h>
+
+#include <nbdkit-plugin.h>
+
+#ifndef O_CLOEXEC
+#define O_CLOEXEC 0
+#endif
+
+static char *filename = NULL;
+static int fd = -1;
+
+/* In theory INT64_MAX, but it breaks qemu's NBD driver. */
+static int64_t size = INT64_MAX/2;
+
+/* Flag if we have entered the unrecoverable error state because of
+ * a seek backwards.
+ */
+static int errorstate = 0;
+
+/* Highest byte (+1) that has been written in the data stream. */
+static uint64_t highestwrite = 0;
+
+/* Called for each key=value passed on the command line. */
+static int
+streaming_config (const char *key, const char *value)
+{
+ if (strcmp (key, "pipe") == 0) {
+ /* See FILENAMES AND PATHS in nbdkit-plugin(3). */
+ filename = nbdkit_absolute_path (value);
+ if (!filename)
+ return -1;
+ }
+ else if (strcmp (key, "size") == 0) {
+ size = nbdkit_parse_size (value);
+ if (size == -1)
+ return -1;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Check the user did pass a pipe=<FILENAME> parameter. */
+static int
+streaming_config_complete (void)
+{
+ if (filename == NULL) {
+ nbdkit_error ("you must supply the pipe=<FILENAME> parameter "
+ "after the plugin name on the command line");
+ return -1;
+ }
+
+ /* Open the file blindly. If this fails with ENOENT then we create a
+ * FIFO and try again.
+ */
+ again:
+ fd = open (filename, O_RDWR|O_CLOEXEC|O_NOCTTY);
+ if (fd == -1) {
+ if (errno != ENOENT) {
+ nbdkit_error ("open: %s: %m", filename);
+ return -1;
+ }
+ if (mknod (filename, S_IFIFO | 0666, 0) == -1) {
+ nbdkit_error ("mknod: %s: %m", filename);
+ return -1;
+ }
+ goto again;
+ }
+
+ return 0;
+}
+
+/* nbdkit is shutting down. */
+static void
+streaming_unload (void)
+{
+ if (fd >= 0)
+ close (fd);
+ free (filename);
+}
+
+#define streaming_config_help \
+ "pipe=<FILENAME> (required) The filename to serve.\n" \
+ "size=<SIZE> (optional) Stream size."
+
+/* Create the per-connection handle. */
+static void *
+streaming_open (int readonly)
+{
+ void *h;
+
+ if (readonly) {
+ nbdkit_error ("you cannot use the -r option with the streaming plugin");
+ return NULL;
+ }
+
+ if (errorstate) {
+ nbdkit_error ("unrecoverable error state, "
+ "no new connections can be opened");
+ return NULL;
+ }
+
+ /* There is no handle, so return an arbitrary non-NULL pointer. */
+ h = &fd;
+
+ return h;
+}
+
+/* Free up the per-connection handle. */
+static void
+streaming_close (void *handle)
+{
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+
+/* Return the size of the stream (infinite). */
+static int64_t
+streaming_get_size (void *handle)
+{
+ return size;
+}
+
+/* Write data to the stream. */
+static int
+streaming_pwrite (void *handle, const void *buf,
+ uint32_t count, uint64_t offset)
+{
+ size_t n;
+ ssize_t r;
+
+ if (errorstate) {
+ nbdkit_error ("unrecoverable error state");
+ errno = EIO;
+ return -1;
+ }
+
+ if (offset < highestwrite) {
+ nbdkit_error ("client tried to seek backwards and write: "
+ "the streaming plugin does not currently support this");
+ errorstate = 1;
+ errno = EIO;
+ return -1;
+ }
+
+ /* Need to write some zeroes. */
+ if (offset > highestwrite) {
+ int64_t size = offset - highestwrite;
+ char buf[4096];
+
+ memset (buf, 0, sizeof buf);
+
+ while (size > 0) {
+ n = size > sizeof buf ? sizeof buf : size;
+ r = write (fd, buf, n);
+ if (r == -1) {
+ nbdkit_error ("write: %m");
+ errorstate = 1;
+ return -1;
+ }
+ highestwrite += r;
+ size -= r;
+ }
+ }
+
+ /* Write the data. */
+ while (count > 0) {
+ r = write (fd, buf, count);
+ if (r == -1) {
+ nbdkit_error ("write: %m");
+ errorstate = 1;
+ return -1;
+ }
+ buf += r;
+ highestwrite += r;
+ count -= r;
+ }
+
+ return 0;
+}
+
+/* Read data back from the stream. */
+static int
+streaming_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ if (errorstate) {
+ nbdkit_error ("unrecoverable error state");
+ errno = EIO;
+ return -1;
+ }
+
+ /* Allow reads which are entirely >= highestwrite. These return zeroes. */
+ if (offset >= highestwrite) {
+ memset (buf, 0, count);
+ return 0;
+ }
+
+ nbdkit_error ("client tried to read: "
+ "the streaming plugin does not currently support this");
+ errorstate = 1;
+ errno = EIO;
+ return -1;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "streaming",
+ .longname = "nbdkit streaming plugin",
+ .version = PACKAGE_VERSION,
+ .unload = streaming_unload,
+ .config = streaming_config,
+ .config_complete = streaming_config_complete,
+ .config_help = streaming_config_help,
+ .open = streaming_open,
+ .close = streaming_close,
+ .get_size = streaming_get_size,
+ .pwrite = streaming_pwrite,
+ .pread = streaming_pread,
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+source = tar.pl
+
+EXTRA_DIST = \
+ $(source)
+
+if HAVE_PERL
+
+plugin_SCRIPTS = nbdkit-tar-plugin
+CLEANFILES += nbdkit-tar-plugin
+
+# We have to do the rewriting here to avoid stupid exec_prefix.
+nbdkit-tar-plugin: $(source)
+ rm -f $@ $@-t
+ sed 's,\@sbindir\@,${sbindir},g' < $< > $@-t
+ mv $@-t $@
+ chmod 0555 $@
+
+if HAVE_POD
+
+man_MANS = nbdkit-tar-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-tar-plugin.1: $(source)
+ $(PODWRAPPER) --section=1 --name nbdkit-tar-plugin --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+
+endif
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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+ for file in $$dist_files; do \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ if test -d $$d/$$file; then \
+ dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
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+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
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+ test -f "$(distdir)/$$file" \
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+check-am: all-am
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+ done
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+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ install; \
+ else \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
+
+clean-generic:
+ -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
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+clean-am: clean-generic clean-libtool mostlyclean-am
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+ -rm -f Makefile
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+dvi: dvi-am
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+dvi-am:
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+html: html-am
+
+html-am:
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+info: info-am
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+info-am:
+
+install-data-am: install-man install-pluginSCRIPTS
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+install-dvi-am:
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+uninstall-am: uninstall-man uninstall-pluginSCRIPTS
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+.MAKE: install-am install-strip
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+ cscopelist-am ctags-am distclean distclean-generic \
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+ install install-am install-data install-data-am install-dvi \
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+ mostlyclean-libtool pdf pdf-am ps ps-am tags-am uninstall \
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+ uninstall-pluginSCRIPTS
+
+.PRECIOUS: Makefile
+
+
+# We have to do the rewriting here to avoid stupid exec_prefix.
+@HAVE_PERL_TRUE@nbdkit-tar-plugin: $(source)
+@HAVE_PERL_TRUE@ rm -f $@ $@-t
+@HAVE_PERL_TRUE@ sed 's,\@sbindir\@,${sbindir},g' < $< > $@-t
+@HAVE_PERL_TRUE@ mv $@-t $@
+@HAVE_PERL_TRUE@ chmod 0555 $@
+
+@HAVE_PERL_TRUE@@HAVE_POD_TRUE@nbdkit-tar-plugin.1: $(source)
+@HAVE_PERL_TRUE@@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --name nbdkit-tar-plugin --man $@ \
+@HAVE_PERL_TRUE@@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_PERL_TRUE@@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+#!@sbindir@/nbdkit perl
+# -*- perl -*-
+
+=pod
+
+=head1 NAME
+
+nbdkit-tar-plugin - read and write files inside tar files without unpacking
+
+=head1 SYNOPSIS
+
+ nbdkit tar tar=FILENAME.tar file=PATH_INSIDE_TAR
+
+=head1 EXAMPLE
+
+=head2 Serve a single file inside a tarball
+
+ nbdkit tar tar=file.tar file=some/disk.img
+ guestfish --format=raw -a nbd://localhost
+
+=head2 Opening a disk image inside an OVA file
+
+The popular "Open Virtual Appliance" (OVA) format is really an
+uncompressed tar file containing (usually) VMDK-format files, so you
+could access one file in an OVA like this:
+
+ $ tar tf rhel.ova
+ rhel.ovf
+ rhel-disk1.vmdk
+ rhel.mf
+ $ nbdkit -r tar tar=rhel.ova file=rhel-disk1.vmdk
+ $ guestfish --ro --format=vmdk -a nbd://localhost
+
+=head1 DESCRIPTION
+
+C<nbdkit-tar-plugin> is a plugin which can read and writes files
+inside an uncompressed tar file without unpacking the tar file.
+
+The C<tar> and C<file> parameters are required, specifying the name of
+the uncompressed tar file and the exact path of the file within the
+tar file to access as a disk image.
+
+This plugin will B<not> work on compressed tar files.
+
+Use the nbdkit I<-r> flag to open the file readonly. This is the
+safest option because it guarantees that the tar file will not be
+modified. Without I<-r> writes will modify the tar file.
+
+Also writing to the tar file does not change data checksums stored in
+other files (the C<rhel.mf> file in the example above), and as these
+will become incorrect you probably won't be able to open the file with
+another tool afterwards.
+
+The disk image cannot be resized.
+
+=head1 SEE ALSO
+
+L<https://github.com/libguestfs/nbdkit/blob/master/plugins/tar/tar.pl>,
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<nbdkit-perl-plugin(3)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones.
+
+Based on the virt-v2v OVA importer written by Tomáš Golembiovský.
+
+=head1 COPYRIGHT
+
+Copyright (C) 2017 Red Hat Inc.
+
+=cut
+
+use strict;
+
+my $tar; # Tar file.
+my $file; # File within the tar file.
+my $offset; # Offset within tar file.
+my $size; # Size of disk image within tar file.
+
+sub config
+{
+ my $k = shift;
+ my $v = shift;
+
+ if ($k eq "tar") {
+ $tar = $v;
+ }
+ elsif ($k eq "file") {
+ $file = $v;
+ }
+ else {
+ die "unknown parameter $k";
+ }
+}
+
+# When all config parameters have been seen, find the extent of the
+# file within the tar file.
+sub config_complete
+{
+ die "tar or file parameter was not set\n"
+ unless defined $tar && defined $file;
+
+ die "$tar: file not found\n"
+ unless -f $tar;
+
+ open (my $pipe, "-|", "tar", "--no-auto-compress", "-tRvf", $tar, $file)
+ or die "$tar: could not open or parse tar file, see errors above";
+ while (<$pipe>) {
+ if (/^block\s(\d+):\s\S+\s\S+\s(\d+)/) {
+ # Add one for the tar header, and multiply by the block size.
+ $offset = ($1 + 1) * 512;
+ $size = $2;
+ #print STDERR "offset = $offset, size = $size\n";
+ }
+ }
+ close ($pipe);
+
+ die "offset or size could not be parsed. Probably the tar file is not a tar file or the file does not exist in the tar file. See any errors above.\n"
+ unless defined $offset && defined $size;
+}
+
+# Accept a connection from a client, create and return the handle
+# which is passed back to other calls.
+sub open
+{
+ my $readonly = shift;
+ my $mode = "<";
+ $mode = "+<" unless $readonly;
+ open (my $fh, $mode, $tar) or die "$tar: open: $!";
+ binmode $fh;
+ my $h = { fh => $fh, readonly => $readonly };
+ return $h;
+}
+
+# Close the connection.
+sub close
+{
+ my $h = shift;
+ close $h->{fh};
+}
+
+# Return the size.
+sub get_size
+{
+ my $h = shift;
+ return $size;
+}
+
+# Read.
+sub pread
+{
+ my $h = shift;
+ my $count = shift;
+ my $offs = shift;
+ seek ($h->{fh}, $offset + $offs, 0) or die "seek: $!";
+ my $r;
+ read ($h->{fh}, $r, $count) or die "read: $!";
+ return $r;
+}
+
+# Write.
+sub pwrite
+{
+ my $h = shift;
+ my $fh = $h->{fh};
+ my $buf = shift;
+ my $count = length ($buf);
+ my $offs = shift;
+ seek ($fh, $offset + $offs, 0) or die "seek: $!";
+ print $fh ($buf);
+}
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = \
+ nbdkit-tcl-plugin.pod \
+ example.tcl
+
+if HAVE_TCL
+
+plugin_LTLIBRARIES = nbdkit-tcl-plugin.la
+
+nbdkit_tcl_plugin_la_SOURCES = \
+ tcl.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_tcl_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_tcl_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS) \
+ $(TCL_CFLAGS)
+nbdkit_tcl_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms \
+ $(TCL_LIBS)
+
+if HAVE_POD
+
+man_MANS = nbdkit-tcl-plugin.3
+CLEANFILES += $(man_MANS)
+
+nbdkit-tcl-plugin.3: nbdkit-tcl-plugin.pod
+ $(PODWRAPPER) --section=3 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+
+endif
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+distclean-tags:
+ -rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(BUILT_SOURCES)
+ $(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+ @srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+ topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+ list='$(DISTFILES)'; \
+ dist_files=`for file in $$list; do echo $$file; done | \
+ sed -e "s|^$$srcdirstrip/||;t" \
+ -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+ case $$dist_files in \
+ */*) $(MKDIR_P) `echo "$$dist_files" | \
+ sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+ sort -u` ;; \
+ esac; \
+ for file in $$dist_files; do \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ if test -d $$d/$$file; then \
+ dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test -d "$(distdir)/$$file"; then \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
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+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
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+ fi; \
+ cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+ else \
+ test -f "$(distdir)/$$file" \
+ || cp -p $$d/$$file "$(distdir)/$$file" \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES) $(MANS)
+installdirs:
+ for dir in "$(DESTDIR)$(plugindir)" "$(DESTDIR)$(man3dir)"; do \
+ test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+ done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+ if test -z '$(STRIP)'; then \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ install; \
+ else \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
+
+clean-generic:
+ -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pluginLTLIBRARIES \
+ mostlyclean-am
+
+distclean: distclean-am
+ -rm -f ./$(DEPDIR)/nbdkit_tcl_plugin_la-tcl.Plo
+ -rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-man install-pluginLTLIBRARIES
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+install-dvi-am:
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+ -rm -f ./$(DEPDIR)/nbdkit_tcl_plugin_la-tcl.Plo
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+
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+ mostlyclean-libtool
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+uninstall-am: uninstall-man uninstall-pluginLTLIBRARIES
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+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+ clean-generic clean-libtool clean-pluginLTLIBRARIES \
+ cscopelist-am ctags ctags-am distclean distclean-compile \
+ distclean-generic distclean-libtool distclean-tags distdir dvi \
+ dvi-am html html-am info info-am install install-am \
+ install-data install-data-am install-dvi install-dvi-am \
+ install-exec install-exec-am install-html install-html-am \
+ install-info install-info-am install-man install-man3 \
+ install-pdf install-pdf-am install-pluginLTLIBRARIES \
+ install-ps install-ps-am install-strip installcheck \
+ installcheck-am installdirs maintainer-clean \
+ maintainer-clean-generic mostlyclean mostlyclean-compile \
+ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+ tags tags-am uninstall uninstall-am uninstall-man \
+ uninstall-man3 uninstall-pluginLTLIBRARIES
+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@@HAVE_TCL_TRUE@nbdkit-tcl-plugin.3: nbdkit-tcl-plugin.pod
+@HAVE_POD_TRUE@@HAVE_TCL_TRUE@ $(PODWRAPPER) --section=3 --man $@ \
+@HAVE_POD_TRUE@@HAVE_TCL_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@@HAVE_TCL_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+# Example Tcl plugin.
+#
+# This example can be freely used for any purpose.
+
+# Run it from the build directory like this:
+#
+# ./nbdkit -f -v tcl ./plugins/tcl/example.tcl file=disk.img
+#
+# Or run it after installing nbdkit like this:
+#
+# nbdkit -f -v tcl ./plugins/tcl/example.tcl file=disk.img
+#
+# The -f -v arguments are optional. They cause the server to stay in
+# the foreground and print debugging, which is useful when testing.
+#
+# You can connect to the server using guestfish or qemu, eg:
+#
+# guestfish --format=raw -a nbd://localhost
+# ><fs> run
+# ><fs> part-disk /dev/sda mbr
+# ><fs> mkfs ext2 /dev/sda1
+# ><fs> list-filesystems
+# ><fs> mount /dev/sda1 /
+# ><fs> [etc]
+
+# This is called from: nbdkit tcl example.tcl --dump-plugin
+proc dump_plugin {} {
+ puts "example_tcl=1"
+}
+
+# We expect a file=... parameter pointing to the file to serve.
+proc config {key value} {
+ global file
+
+ if { $key == "file" } {
+ set file $value
+ } else {
+ error "unknown parameter $key=$value"
+ }
+}
+
+# Check the file parameter was passed.
+proc config_complete {} {
+ global file
+
+ if { ![info exists file] } {
+ error "file parameter missing"
+ }
+}
+
+# Open a new client connection.
+proc plugin_open {readonly} {
+ global file
+
+ # Open the file.
+ if { $readonly } {
+ set flags "r"
+ } else {
+ set flags "r+"
+ }
+ set fh [open $file $flags]
+
+ # Stop Tcl from trying to convert to and from UTF-8.
+ fconfigure $fh -translation binary
+
+ # We can return any Tcl object as the handle. In this
+ # plugin it's convenient to return the file handle.
+ return $fh
+}
+
+# Close a client connection.
+proc plugin_close {fh} {
+ close $fh
+}
+
+proc get_size {fh} {
+ global file
+
+ return [file size $file]
+}
+
+proc pread {fh count offset} {
+ seek $fh $offset
+ return [read $fh $count]
+}
+
+proc pwrite {fh buf offset} {
+ seek $fh $offset
+ puts -nonewline $fh $buf
+}
--- /dev/null
+=head1 NAME
+
+nbdkit-tcl-plugin - nbdkit Tcl plugin
+
+=head1 SYNOPSIS
+
+ nbdkit tcl /path/to/plugin.tcl [arguments...]
+
+=head1 DESCRIPTION
+
+C<nbdkit-tcl-plugin> is an embedded Tcl interpreter for
+L<nbdkit(1)>, allowing you to write nbdkit plugins in Tcl.
+
+=head2 If you have been given an nbdkit Tcl plugin
+
+Assuming you have a Tcl script which is an nbdkit plugin, you run it
+like this:
+
+ nbdkit tcl /path/to/plugin.tcl
+
+You may have to add further C<key=value> arguments to the command
+line. Read the Tcl script to see if it requires any.
+
+=head1 WRITING A TCL NBDKIT PLUGIN
+
+For an example plugin written in Tcl, see:
+L<https://github.com/libguestfs/nbdkit/blob/master/plugins/tcl/example.tcl>
+
+Broadly speaking, Tcl nbdkit plugins work like C ones, so you should
+read L<nbdkit-plugin(3)> first.
+
+To write a Tcl nbdkit plugin, you create a Tcl file which contains
+at least the following required subroutines:
+
+ proc plugin_open {readonly} {
+ # see below
+ return $h
+ }
+ proc get_size {h} {
+ # see below
+ return $size
+ }
+ proc pread {h count offset} {
+ # see below
+ return $buf
+ }
+
+Note that the subroutines must have those literal names (like
+C<plugin_open>), because the C part looks up and calls those functions
+directly. You may want to include documentation and globals (eg. for
+storing global state). Also any top-level statements are run when
+nbdkit starts up.
+
+=head2 Executable script
+
+If you want you can make the script executable and include a "shebang"
+at the top:
+
+ #!/usr/sbin/nbdkit tcl
+
+See also L<nbdkit(1)/Shebang scripts>.
+
+These scripts can also be installed in the C<$plugindir>. See
+L<nbdkit-plugin(3)/WRITING PLUGINS IN OTHER PROGRAMMING LANGUAGES>.
+
+=head2 Exceptions
+
+Tcl plugin methods can indicate an error by calling C<error>.
+
+=head2 Binary data
+
+When writing your Tcl script, be careful to ensure that it is
+processing binary data (not Unicode). If reading and writing from
+local disk files, you should use:
+
+ fconfigure $fp -translation binary
+
+Note also that the value returned from C<pread> should convertible to
+a byte array, and the buffer passed to C<pwrite> is also a byte array.
+
+See also: L<https://wiki.tcl.tk/1180>
+
+=head2 Tcl callbacks
+
+This just documents the arguments to the callbacks in Tcl, and any
+way that they differ from the C callbacks. In all other respects they
+work the same way as the C callbacks, so you should go and read
+L<nbdkit-plugin(3)>.
+
+=over 4
+
+=item C<dump_plugin>
+
+(Optional)
+
+There are no arguments or return value.
+
+=item C<config>
+
+(Optional)
+
+ proc config {key value} {
+ # No return value.
+ }
+
+=item C<config_complete>
+
+(Optional)
+
+There are no arguments or return value.
+
+=item C<plugin_open>
+
+(Required)
+
+ proc plugin_open {readonly} {
+ set handle ...
+ return $handle
+ }
+
+The C<readonly> flag is a boolean.
+
+You can return any Tcl string or object as the handle. It is passed
+back to subsequent calls.
+
+=item C<plugin_close>
+
+(Optional)
+
+ proc plugin_close {h} {
+ # No return value
+ }
+
+After C<plugin_close> returns, the reference count of the handle is
+decremented in the C part, which usually means that the handle and its
+contents will be garbage collected.
+
+=item C<get_size>
+
+(Required)
+
+ proc get_size {h} {
+ set size .. the size of the disk ..
+ return $size
+ }
+
+This returns the size of the disk.
+
+=item C<can_write>
+
+(Optional)
+
+ proc can_write {h} {
+ return $bool
+ }
+
+Return a boolean indicating whether the disk is writable.
+
+=item C<can_flush>
+
+(Optional)
+
+ proc can_flush {h} {
+ return $bool
+ }
+
+Return a boolean indicating whether flush can be performed.
+
+=item C<is_rotational>
+
+(Optional)
+
+ proc is_rotational {h} {
+ return $bool
+ }
+
+Return a boolean indicating whether the disk is rotational.
+
+=item C<can_trim>
+
+(Optional)
+
+ proc can_trim {h} {
+ return $bool
+ }
+
+Return a boolean indicating whether trim/discard can be performed.
+
+=item C<pread>
+
+(Required)
+
+ proc pread {h count offset} {
+ # Construct a buffer of length $count bytes and return it.
+ return $buf
+ }
+
+The body of your C<pread> function should construct a buffer of length
+(at least) C<$count> bytes. You should read C<$count> bytes from the
+disk starting at C<$offset>.
+
+NBD only supports whole reads, so your function should try to read the
+whole region (perhaps requiring a loop). If the read fails or is
+partial, your function should call C<error>.
+
+=item C<pwrite>
+
+(Optional)
+
+ proc pwrite {h buf offset} {
+ # No return value
+ }
+
+The body of your C<pwrite> function should write the C<$buf> string to
+the disk. You should write C<$count> bytes to the disk starting at
+C<$offset>.
+
+NBD only supports whole writes, so your function should try to write
+the whole region (perhaps requiring a loop). If the write fails or is
+partial, your function should call C<error>.
+
+=item C<plugin_flush>
+
+(Optional)
+
+ proc plugin_flush {h} {
+ # No return value
+ }
+
+The body of your C<plugin_flush> function should do a L<sync(2)> or
+L<fdatasync(2)> or equivalent on the backing store.
+
+=item C<trim>
+
+(Optional)
+
+ proc trim {h count offset} {
+ # No return value
+ }
+
+The body of your C<trim> function should "punch a hole" in the backing
+store.
+
+=item C<zero>
+
+(Optional)
+
+ proc zero {h count offset may_trim} {
+ # No return value
+ }
+
+The body of your C<zero> function should ensure that C<$count> bytes
+of the disk, starting at C<$offset>, will read back as zero. If
+C<$may_trim> is true, the operation may be optimized as a trim as long
+as subsequent reads see zeroes.
+
+NBD only supports whole writes, so your function should try to write
+the whole region (perhaps requiring a loop). If the write fails or is
+partial, your function should call C<error>.
+
+=back
+
+=head2 Missing callbacks
+
+=over 4
+
+=item Missing: C<load>, C<unload>, C<name>, C<version>, C<longname>,
+C<description>, C<config_help>, C<can_zero>, C<can_fua>
+
+These are not yet supported.
+
+=back
+
+=head2 Threads
+
+The thread model for Tcl callbacks currently cannot be set from Tcl.
+It is hard-coded in the C part to
+C<NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS>. This may change or be
+settable in future.
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <assert.h>
+
+#include <tcl.h>
+
+#include <nbdkit-plugin.h>
+
+static Tcl_Interp *interp;
+static const char *script;
+
+static void
+tcl_load (void)
+{
+ //Tcl_FindExecutable ("nbdkit");
+ interp = Tcl_CreateInterp ();
+ if (Tcl_Init (interp) != TCL_OK) {
+ nbdkit_error ("cannot initialize Tcl interpreter: %s",
+ Tcl_GetStringResult (interp));
+ exit (EXIT_FAILURE);
+ }
+}
+
+static void
+tcl_unload (void)
+{
+ if (interp)
+ Tcl_DeleteInterp (interp);
+ Tcl_Finalize ();
+}
+
+/* Test if proc was defined by the Tcl code. */
+static int
+proc_defined (const char *name)
+{
+ int r;
+ Tcl_Obj *cmd;
+
+ cmd = Tcl_NewObj ();
+ Tcl_IncrRefCount (cmd);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("info", -1));
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("procs", -1));
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj (name, -1));
+ r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT);
+ Tcl_DecrRefCount (cmd);
+ if (r != TCL_OK) {
+ nbdkit_error ("info procs: %s", Tcl_GetStringResult (interp));
+ return 0; /* We can't return an error here, just return false. */
+ }
+
+ /* 'info procs name' returns the proc name if it exists, else empty
+ * string, so we can just check if the result is not empty.
+ */
+ return strcmp (Tcl_GetStringResult (interp), "") != 0;
+}
+
+static void
+tcl_dump_plugin (void)
+{
+#ifdef TCL_VERSION
+ printf ("tcl_version=%s\n", TCL_VERSION);
+#endif
+
+#ifdef TCL_PATCH_LEVEL
+ printf ("tcl_patch_level=%s\n", TCL_PATCH_LEVEL);
+#endif
+
+ if (script && proc_defined ("dump_plugin")) {
+ int r;
+ Tcl_Obj *cmd;
+
+ cmd = Tcl_NewObj ();
+ Tcl_IncrRefCount (cmd);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("dump_plugin", -1));
+ r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT);
+ Tcl_DecrRefCount (cmd);
+ if (r != TCL_OK)
+ nbdkit_error ("dump_plugin: %s", Tcl_GetStringResult (interp));
+ }
+}
+
+static int
+tcl_config (const char *key, const char *value)
+{
+ int r;
+
+ if (!script) {
+ /* The first parameter MUST be "script". */
+ if (strcmp (key, "script") != 0) {
+ nbdkit_error ("the first parameter must be script=/path/to/script.tcl");
+ return -1;
+ }
+ script = value;
+
+ assert (interp);
+
+ /* Load the Tcl file. */
+ r = Tcl_EvalFile (interp, script);
+ if (r != TCL_OK) {
+ if (r == TCL_ERROR)
+ nbdkit_error ("could not load Tcl script: %s: line %d: %s",
+ script, Tcl_GetErrorLine (interp),
+ Tcl_GetStringResult (interp));
+ else
+ nbdkit_error ("could not load Tcl script: %s: %s",
+ script, Tcl_GetStringResult (interp));
+ return -1;
+ }
+
+ /* Minimal set of callbacks which are required (by nbdkit itself). */
+ if (!proc_defined ("plugin_open") ||
+ !proc_defined ("get_size") ||
+ !proc_defined ("pread")) {
+ nbdkit_error ("%s: one of the required callbacks "
+ "'plugin_open', 'get_size' or 'pread' "
+ "is not defined by this Tcl script. "
+ "nbdkit requires these callbacks.", script);
+ return -1;
+ }
+ }
+ else if (proc_defined ("config")) {
+ int r;
+ Tcl_Obj *cmd;
+
+ cmd = Tcl_NewObj ();
+ Tcl_IncrRefCount (cmd);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("config", -1));
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj (key, -1));
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj (value, -1));
+ r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT);
+ Tcl_DecrRefCount (cmd);
+ if (r != TCL_OK) {
+ nbdkit_error ("config: %s", Tcl_GetStringResult (interp));
+ return -1;
+ }
+ }
+ else {
+ /* Emulate what core nbdkit does if a config callback is NULL. */
+ nbdkit_error ("%s: this plugin does not need command line configuration",
+ script);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+tcl_config_complete (void)
+{
+ int r;
+ Tcl_Obj *cmd;
+
+ if (proc_defined ("config_complete")) {
+ cmd = Tcl_NewObj ();
+ Tcl_IncrRefCount (cmd);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("config_complete", -1));
+ r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT);
+ Tcl_DecrRefCount (cmd);
+ if (r != TCL_OK) {
+ nbdkit_error ("config_complete: %s", Tcl_GetStringResult (interp));
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+static void *
+tcl_open (int readonly)
+{
+ int r;
+ Tcl_Obj *cmd, *res;
+
+ cmd = Tcl_NewObj ();
+ Tcl_IncrRefCount (cmd);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("plugin_open", -1));
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewBooleanObj (readonly));
+ r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT);
+ Tcl_DecrRefCount (cmd);
+ if (r != TCL_OK) {
+ nbdkit_error ("plugin_open: %s", Tcl_GetStringResult (interp));
+ return NULL;
+ }
+
+ res = Tcl_GetObjResult (interp);
+ Tcl_IncrRefCount (res);
+ return res;
+}
+
+static void
+tcl_close (void *handle)
+{
+ int r;
+ Tcl_Obj *h = handle, *cmd;
+
+ if (proc_defined ("plugin_close")) {
+ cmd = Tcl_NewObj ();
+ Tcl_IncrRefCount (cmd);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("plugin_close", -1));
+ Tcl_ListObjAppendElement (0, cmd, h);
+ r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT);
+ Tcl_DecrRefCount (cmd);
+ if (r != TCL_OK)
+ nbdkit_error ("plugin_close: %s", Tcl_GetStringResult (interp));
+ }
+
+ /* Ensure that the handle is freed. */
+ Tcl_DecrRefCount (h);
+}
+
+static int64_t
+tcl_get_size (void *handle)
+{
+ int r;
+ Tcl_Obj *h = handle, *cmd, *res;
+ Tcl_WideInt size;
+
+ cmd = Tcl_NewObj ();
+ Tcl_IncrRefCount (cmd);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("get_size", -1));
+ Tcl_ListObjAppendElement (0, cmd, h);
+ r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT);
+ Tcl_DecrRefCount (cmd);
+ if (r != TCL_OK) {
+ nbdkit_error ("get_size: %s", Tcl_GetStringResult (interp));
+ return -1;
+ }
+
+ res = Tcl_GetObjResult (interp);
+ if (Tcl_GetWideIntFromObj (interp, res, &size) != TCL_OK) {
+ nbdkit_error ("get_size: Tcl_GetWideIntFromObj: %s",
+ Tcl_GetStringResult (interp));
+ return -1;
+ }
+ return size;
+}
+
+static int
+tcl_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ int r;
+ Tcl_Obj *h = handle, *cmd, *res;
+ unsigned char *res_bin;
+ int res_len;
+
+ cmd = Tcl_NewObj ();
+ Tcl_IncrRefCount (cmd);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("pread", -1));
+ Tcl_ListObjAppendElement (0, cmd, h);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewIntObj (count));
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewWideIntObj (offset));
+ r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT);
+ Tcl_DecrRefCount (cmd);
+ if (r != TCL_OK) {
+ nbdkit_error ("pread: %s", Tcl_GetStringResult (interp));
+ return -1;
+ }
+
+ res = Tcl_GetObjResult (interp);
+ res_bin = Tcl_GetByteArrayFromObj (res, &res_len);
+ if (res_len < count) {
+ nbdkit_error ("pread: buffer returned from pread is too small");
+ return -1;
+ }
+
+ memcpy (buf, res_bin, count);
+ return 0;
+}
+
+static int
+tcl_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset)
+{
+ if (proc_defined ("pwrite")) {
+ int r;
+ Tcl_Obj *h = handle, *cmd;
+
+ cmd = Tcl_NewObj ();
+ Tcl_IncrRefCount (cmd);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("pwrite", -1));
+ Tcl_ListObjAppendElement (0, cmd, h);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewByteArrayObj (buf, count));
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewWideIntObj (offset));
+ r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT);
+ Tcl_DecrRefCount (cmd);
+ if (r != TCL_OK) {
+ nbdkit_error ("pwrite: %s", Tcl_GetStringResult (interp));
+ return -1;
+ }
+ return 0;
+ }
+
+ nbdkit_error ("pwrite not implemented");
+ return -1;
+}
+
+static int
+tcl_can_write (void *handle)
+{
+ if (proc_defined ("can_write")) {
+ int r;
+ Tcl_Obj *h = handle, *cmd, *res;
+
+ cmd = Tcl_NewObj ();
+ Tcl_IncrRefCount (cmd);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("can_write", -1));
+ Tcl_ListObjAppendElement (0, cmd, h);
+ r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT);
+ Tcl_DecrRefCount (cmd);
+ if (r != TCL_OK) {
+ nbdkit_error ("can_write: %s", Tcl_GetStringResult (interp));
+ return -1;
+ }
+ res = Tcl_GetObjResult (interp);
+ Tcl_GetBooleanFromObj (interp, res, &r);
+ return r;
+ }
+ /* No can_write callback, but there's a pwrite callback defined, so
+ * return 1. (In C modules, nbdkit would do this).
+ */
+ else if (proc_defined ("pwrite"))
+ return 1;
+ else
+ return 0;
+}
+
+static int
+tcl_can_flush (void *handle)
+{
+ if (proc_defined ("can_flush")) {
+ int r;
+ Tcl_Obj *h = handle, *cmd, *res;
+
+ cmd = Tcl_NewObj ();
+ Tcl_IncrRefCount (cmd);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("can_flush", -1));
+ Tcl_ListObjAppendElement (0, cmd, h);
+ r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT);
+ Tcl_DecrRefCount (cmd);
+ if (r != TCL_OK) {
+ nbdkit_error ("can_flush: %s", Tcl_GetStringResult (interp));
+ return -1;
+ }
+ res = Tcl_GetObjResult (interp);
+ Tcl_GetBooleanFromObj (interp, res, &r);
+ return r;
+ }
+ /* No can_flush callback, but there's a plugin_flush callback
+ * defined, so return 1. (In C modules, nbdkit would do this).
+ */
+ else if (proc_defined ("plugin_flush"))
+ return 1;
+ else
+ return 0;
+}
+
+static int
+tcl_can_trim (void *handle)
+{
+ if (proc_defined ("can_trim")) {
+ int r;
+ Tcl_Obj *h = handle, *cmd, *res;
+
+ cmd = Tcl_NewObj ();
+ Tcl_IncrRefCount (cmd);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("can_trim", -1));
+ Tcl_ListObjAppendElement (0, cmd, h);
+ r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT);
+ Tcl_DecrRefCount (cmd);
+ if (r != TCL_OK) {
+ nbdkit_error ("can_trim: %s", Tcl_GetStringResult (interp));
+ return -1;
+ }
+ res = Tcl_GetObjResult (interp);
+ Tcl_GetBooleanFromObj (interp, res, &r);
+ return r;
+ }
+ /* No can_trim callback, but there's a trim callback defined, so
+ * return 1. (In C modules, nbdkit would do this).
+ */
+ else if (proc_defined ("trim"))
+ return 1;
+ else
+ return 0;
+}
+
+static int
+tcl_zero (void *handle, uint32_t count, uint64_t offset, int may_trim)
+{
+ if (proc_defined ("zero")) {
+ int r;
+ Tcl_Obj *h = handle, *cmd;
+
+ cmd = Tcl_NewObj ();
+ Tcl_IncrRefCount (cmd);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("zero", -1));
+ Tcl_ListObjAppendElement (0, cmd, h);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewIntObj (count));
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewWideIntObj (offset));
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewBooleanObj (may_trim));
+ r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT);
+ Tcl_DecrRefCount (cmd);
+ if (r != TCL_OK) {
+ nbdkit_error ("zero: %s", Tcl_GetStringResult (interp));
+ return -1;
+ }
+ return 0;
+ }
+
+ nbdkit_debug ("zero falling back to pwrite");
+ nbdkit_set_error (EOPNOTSUPP);
+ return -1;
+}
+
+static int
+tcl_is_rotational (void *handle)
+{
+ if (proc_defined ("is_rotational")) {
+ int r;
+ Tcl_Obj *h = handle, *cmd, *res;
+
+ cmd = Tcl_NewObj ();
+ Tcl_IncrRefCount (cmd);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("is_rotational", -1));
+ Tcl_ListObjAppendElement (0, cmd, h);
+ r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT);
+ Tcl_DecrRefCount (cmd);
+ if (r != TCL_OK) {
+ nbdkit_error ("is_rotational: %s", Tcl_GetStringResult (interp));
+ return -1;
+ }
+ res = Tcl_GetObjResult (interp);
+ Tcl_GetBooleanFromObj (interp, res, &r);
+ return r;
+ }
+ else
+ return 0;
+}
+
+static int
+tcl_flush (void *handle)
+{
+ if (proc_defined ("plugin_flush")) {
+ int r;
+ Tcl_Obj *h = handle, *cmd;
+
+ cmd = Tcl_NewObj ();
+ Tcl_IncrRefCount (cmd);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("plugin_flush", -1));
+ Tcl_ListObjAppendElement (0, cmd, h);
+ r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT);
+ Tcl_DecrRefCount (cmd);
+ if (r != TCL_OK) {
+ nbdkit_error ("plugin_flush: %s", Tcl_GetStringResult (interp));
+ return -1;
+ }
+ return 0;
+ }
+
+ /* Ignore lack of flush callback, although probably nbdkit will
+ * never call this since .can_flush returns false.
+ */
+ return 0;
+}
+
+static int
+tcl_trim (void *handle, uint32_t count, uint64_t offset)
+{
+ if (proc_defined ("trim")) {
+ int r;
+ Tcl_Obj *h = handle, *cmd;
+
+ cmd = Tcl_NewObj ();
+ Tcl_IncrRefCount (cmd);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewStringObj ("trim", -1));
+ Tcl_ListObjAppendElement (0, cmd, h);
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewIntObj (count));
+ Tcl_ListObjAppendElement (0, cmd, Tcl_NewWideIntObj (offset));
+ r = Tcl_EvalObjEx (interp, cmd, TCL_EVAL_DIRECT);
+ Tcl_DecrRefCount (cmd);
+ if (r != TCL_OK) {
+ nbdkit_error ("trim: %s", Tcl_GetStringResult (interp));
+ return -1;
+ }
+ return 0;
+ }
+
+ /* Ignore lack of trim callback, although probably nbdkit will never
+ * call this since .can_trim returns false.
+ */
+ return 0;
+}
+
+#define tcl_config_help \
+ "script=<FILENAME> (required) The Tcl script to run.\n" \
+ "[other arguments may be used by the plugin that you load]"
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+
+static struct nbdkit_plugin plugin = {
+ .name = "tcl",
+ .version = PACKAGE_VERSION,
+
+ .load = tcl_load,
+ .unload = tcl_unload,
+ .dump_plugin = tcl_dump_plugin,
+
+ .config = tcl_config,
+ .config_complete = tcl_config_complete,
+ .config_help = tcl_config_help,
+
+ .open = tcl_open,
+ .close = tcl_close,
+
+ .get_size = tcl_get_size,
+ .can_write = tcl_can_write,
+ .can_flush = tcl_can_flush,
+ .is_rotational = tcl_is_rotational,
+ .can_trim = tcl_can_trim,
+
+ .pread = tcl_pread,
+ .pwrite = tcl_pwrite,
+ .flush = tcl_flush,
+ .trim = tcl_trim,
+ .zero = tcl_zero,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = \
+ nbdkit-vddk-plugin.pod \
+ README.VDDK
+
+if HAVE_VDDK
+
+plugin_LTLIBRARIES = nbdkit-vddk-plugin.la
+
+nbdkit_vddk_plugin_la_SOURCES = \
+ vddk.c \
+ vddk-structs.h \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_vddk_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include \
+ -DVDDK_LIBDIR=\"$(libdir)/vmware-vix-disklib\"
+nbdkit_vddk_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_vddk_plugin_la_LIBADD = \
+ $(DL_LIBS)
+nbdkit_vddk_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-vddk-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-vddk-plugin.1: nbdkit-vddk-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
+
+endif HAVE_VDDK
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
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+mostlyclean-generic:
+
+clean-generic:
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+
+distclean-generic:
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+clean-am: clean-generic clean-libtool clean-pluginLTLIBRARIES \
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+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@@HAVE_VDDK_TRUE@nbdkit-vddk-plugin.1: nbdkit-vddk-plugin.pod
+@HAVE_POD_TRUE@@HAVE_VDDK_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@@HAVE_VDDK_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@@HAVE_VDDK_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+VDDK (Virtual Disk Development Kit) is a proprietary VMware library
+for accessing VMDK files and VMware ESX servers. Note that the
+license of the VDDK library is highly restrictive, preventing any
+commercial usage without negotiating a separate license from VMware.
+
+In order to obtain the VDDK library you have to register for an
+account and download it from:
+
+ https://www.vmware.com/support/developer/vddk/
+
+This directory contains an nbdkit plugin which uses this library to
+export VMDK files and VMware disks over NBD.
+
+You do NOT require VDDK to compile the plugin, and the plugin does not
+contain any VMware code. You only need VDDK at runtime. The plugin
+uses dlopen to load the library from LD_LIBRARY_PATH (or else the
+standard shared library paths).
+
+After building nbdkit-vddk-plugin.so, read the man page to find out
+how to use it (nbdkit-vddk-plugin(1)). You'll probably also want to
+read the VDDK developer documentation.
+
+Bugs
+----
+
+Write calls sometimes return VIX_E_DISK_OUTOFRANGE even for write
+requests which are well inside the disk.
\ No newline at end of file
--- /dev/null
+=head1 NAME
+
+nbdkit-vddk-plugin - nbdkit VMware VDDK plugin
+
+=head1 SYNOPSIS
+
+ nbdkit vddk file=FILENAME [config=FILENAME] [libdir=LIBRARY]
+ [vm=moref=ID] [server=HOSTNAME] [user=USERNAME]
+ [password=PASSWORD | password=- | password=+FILENAME]
+ [cookie=COOKIE] [thumbprint=THUMBPRINT]
+ [port=PORT] [nfchostport=PORT] [single-link=true]
+ [snapshot=MOREF] [transports=MODE:MODE:...]
+ [unbuffered=true]
+ nbdkit vddk --dump-plugin
+
+=head1 DESCRIPTION
+
+C<nbdkit-vddk-plugin> is an L<nbdkit(1)> plugin that serves files from
+local VMware VMDK files, VMware ESXi servers, VMware VCenter servers,
+and other sources. It requires VMware's proprietary VDDK library that
+you must download yourself separately.
+
+The plugin can serve read-only (if the I<-r> option is used) or
+read/write.
+
+=head1 LIBRARY AND CONFIG FILE LOCATIONS
+
+If the VDDK library (F<libvixDiskLib.so.I<N>>) is located on a
+non-standard path, you may need to set C<LD_LIBRARY_PATH> or modify
+F</etc/ld.so.conf> before this plugin will work. In addition you may
+want to set the C<libdir> parameter so that the VDDK library can load
+plugins like Advanced Transport.
+
+For 64 bit platforms pass the F<lib64> subdirectory:
+
+ export LD_LIBRARY_PATH=/path/to/vmware-vix-disklib-distrib/lib64
+
+For 32 bit platforms pass the F<lib32> subdirectory:
+
+ export LD_LIBRARY_PATH=/path/to/vmware-vix-disklib-distrib/lib32
+
+Then pass the VDDK distribution directory as C<libdir> along with
+other parameters as required:
+
+ nbdkit vddk \
+ libdir=/path/to/vmware-vix-disklib-distrib \
+ file=file.vmdk
+
+VDDK itself looks in a few default locations for the optional
+configuration file, usually including F</etc/vmware/config> and
+F<$HOME/.vmware/config>, but you can override this using the C<config>
+parameter.
+
+=head1 PARAMETERS
+
+All parameters are optional except:
+
+=over 4
+
+=item C<file>
+
+is required for opening a local VMDK file.
+
+=item C<server>
+
+=item C<thumbprint>
+
+=item C<user>
+
+=item C<password>
+
+=item C<vm>
+
+=item C<file>
+
+When making a remote connection you must supply all 6 of these
+parameters.
+
+=back
+
+See the L</EXAMPLES> section below for local and remote command lines.
+
+=over 4
+
+=item B<config=>FILENAME
+
+The name of the VDDK configuration file.
+
+=item B<cookie=>COOKIE
+
+Cookie from existing authenticated session on the host.
+
+=item B<file=>FILENAME
+
+Set the name of the VMDK file to serve.
+
+For local files you B<must> supply an absolute path.
+
+For remote files this is usually a path on the VMware server with the
+format C<"[datastore] path/to/file.vmdk">. You can find the path
+using L<virsh(1)>. For ESXi:
+
+ virsh -c 'esx://esxi.example.com?no_verify=1' dumpxml guestname
+
+For vCenter:
+
+ virsh -c 'vpx://vcenter.example.com/Datacenter/esxi.example.com?no_verify=1' \
+ dumpxml guestname
+
+If a VM has multiple disks, nbdkit can only serve one at a time. To
+serve more than one you must run multiple copies of nbdkit. (See
+L</NOTES> below).
+
+=item B<libdir=>PATHNAME
+
+This sets the path of the VMware VDDK distribution.
+
+VDDK uses this to load its own plugins, if this path is unspecified or
+wrong then VDDK will work with reduced functionality.
+
+If the parameter is not given, then a hard-coded path determined at
+compile time is used, see L</DUMP-PLUGIN OUTPUT> below.
+
+=item B<nfchostport=>PORT
+
+Port used to establish an NFC connection to ESXi. Defaults to 902.
+
+(Only supported in VDDK ≥ 5.5.5 and ≥ 6.0.1)
+
+=item B<password=>PASSWORD
+
+Set the password to use when connecting to the remote server.
+
+Note that passing this on the command line is not secure on shared
+machines.
+
+=item B<password=->
+
+Ask for the password (interactively) when nbdkit starts up.
+
+=item B<password=+>FILENAME
+
+Read the password from the named file. This is the most secure method
+to supply a password, as long as you set the permissions on the file
+appropriately.
+
+=item B<port=>PORT
+
+The port on the VCenter/ESXi host. Defaults to 443.
+
+=item B<server=>HOSTNAME
+
+The hostname or IP address of VCenter or ESXi host.
+
+=item B<single-link=true>
+
+Open the current link, not the entire chain. This corresponds to the
+C<VIXDISKLIB_FLAG_OPEN_SINGLE_LINK> flag.
+
+=item B<snapshot=>MOREF
+
+The Managed Object Reference of the snapshot.
+
+=item B<thumbprint=>THUMBPRINT
+
+The SSL (SHA1) thumbprint for validating the SSL certificate.
+
+The format is
+C<xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx:xx>
+(20 hex digit pairs).
+
+See L</THUMBPRINTS> below for how to get this.
+
+=item B<transports=>MODEB<:>MODEB<:>...
+
+List of one or more transport modes to use. Possible values include
+‘nbd’, ‘nbdssl’, ‘san’, ‘hotadd’, ‘file’ (there may be others). If
+not given, VDDK will try to choose the best transport mode.
+
+=item B<unbuffered=true>
+
+Disable host caching. This corresponds to the
+C<VIXDISKLIB_FLAG_OPEN_UNBUFFERED> flag.
+
+=item B<user=>USERNAME
+
+The username to connect to the remote server as.
+
+=item B<vm=moref=>ID
+
+The Managed Object Reference ("moref") of the virtual machine.
+
+For VMware ESXi hypervisors, this is a number (eg. C<vm=moref=2>).
+For VMware VCenter, this is a string beginning with C<"vm-">)
+(eg. C<vm=moref=vm-16>). Across ESXi and vCenter the numbers are
+different even for the same virtual machine.
+
+If you have libvirt E<ge> 3.7, the moref is available in the
+L<virsh(1)> C<dumpxml> output:
+
+ $ virsh -c 'esx://esxi.example.com?no_verify=1' dumpxml guestname
+ ...
+ <vmware:moref>2</vmware:moref>
+ ...
+
+or:
+
+ $ virsh -c 'vpx://vcenter.example.com/Datacenter/esxi.example.com?no_verify=1' \
+ dumpxml guestname
+ ...
+ <vmware:moref>vm-16</vmware:moref>
+ ...
+
+An alternative way to find the moref of a VM is using the
+C<moRefFinder.pl> script written by William Lam
+(L<http://www.virtuallyghetto.com/2011/11/vsphere-moref-managed-object-reference.html>
+L<https://blogs.vmware.com/vsphere/2012/02/uniquely-identifying-virtual-machines-in-vsphere-and-vcloud-part-2-technical.html>).
+
+=item B<vimapiver=>APIVER
+
+This parameter is ignored for backwards compatibility.
+
+=back
+
+=head1 EXAMPLES
+
+=head2 Open a local VMDK file
+
+ nbdkit vddk file=/absolute/path/to/file.vmdk
+
+Note that when opening local files the C<file=> parameter B<must> be
+an absolute path.
+
+Because VDDK needs to take a lock on this file, the file must be on a
+writable filesystem (unless you use the I<-r> option).
+
+=head2 Open a file on a remote VMware ESXi hypervisor
+
+Connect directly to a VMware ESXi hypervisor and export a particular
+file:
+
+ nbdkit vddk user=root password=+/tmp/rootpw \
+ server=esxi.example.com thumbprint=xx:xx:xx:... \
+ vm=moref=2 \
+ file="[datastore1] Fedora/Fedora.vmdk"
+
+C<user> and C<password> must be specified. Use C<password=+FILENAME>
+to provide the password securely in a file.
+
+C<server> is the hostname of the ESXi server. C<thumbprint> is the
+thumb print for validating the SSL certificate. How to find the thumb
+print of a server is described in L</THUMBPRINTS> below.
+
+C<vm> is the Managed Object Reference ("moref") of the virtual
+machine. To find this using L<virsh(1)> or the C<moRefFinder.pl>
+script, see L</PARAMETERS> above. Note that it is different from the
+moref used by vCenter, and is just a single number.
+
+C<file> is the actual file you want to open, usually in the form
+C<"[datastore] vmname/vmname.vmdk">. You can find this from
+L<virsh(1)> as described in L</PARAMETERS> above.
+
+=head2 Open a file on a remote VMware vCenter server
+
+Connect via VMware vCenter and export a particular file:
+
+ nbdkit vddk user=root password=vmware \
+ server=vcenter.example.com thumbprint=xx:xx:xx:... \
+ vm=moref=vm-16 \
+ file="[datastore1] Fedora/Fedora.vmdk"
+
+C<user> and C<password> must be specified. Use C<password=+FILENAME>
+to provide the password securely in a file.
+
+C<server> is the hostname of the vCenter server. C<thumbprint> is the
+thumb print for validating the SSL certificate. How to find the thumb
+print of a server is described in L</THUMBPRINTS> below.
+
+C<vm> is the Managed Object Reference ("moref") of the virtual
+machine. To find this using L<virsh(1)> or the C<moRefFinder.pl>
+script, see L</PARAMETERS> above. Note that it is different from the
+moref used by ESXi, and always begins with the prefix C<"vm-">.
+
+C<file> is the actual file you want to open, usually in the form
+C<"[datastore] vmname/vmname.vmdk">. You can find this from
+L<virsh(1)> as described in L</PARAMETERS> above.
+
+=head1 THUMBPRINTS
+
+The thumbprint is a 20 byte string containing the SSL (SHA1)
+fingerprint of the remote VMware server and it is required when making
+a remote connection. There are two ways to obtain this.
+
+=head2 Extracting thumbprint from ESXi or vCenter server
+
+To extract the thumbprint, log in to the ESXi hypervisor shell and run
+this command:
+
+ # openssl x509 -in /etc/vmware/ssl/rui.crt -fingerprint -sha1 -noout
+
+For VMware vCenter servers the thumbprint is printed on the text
+console of the server or is available by logging in to the server and
+using this command:
+
+ # openssl x509 -in /etc/vmware-vpx/ssl/rui.crt -fingerprint -sha1 -noout
+
+=head2 Trick: Get VDDK to tell you the thumbprint
+
+Another (easier) way to get the thumbprint of a server is to connect
+to the server using a bogus thumbprint with debugging enabled:
+
+ nbdkit -f -v vddk server=esxi.example.com [...] thumbprint=12
+ qemu-img info nbd:localhost:10809
+
+The nbdkit process will try to connect (and fail because the
+thumbprint is wrong). However in the debug output will be a message
+such as this:
+
+ nbdkit: debug: VixDiskLibVim: Failed to verify SSL certificate: actual thumbprint=B2:31:BD:DE:9F:DB:9D:E0:78:EF:30:42:8A:41:B0:28:92:93:C8:DD expected=12
+
+This gives you the server’s real thumbprint. Of course this method is
+not secure since it allows a Man-in-the-Middle (MITM) attack.
+
+=head1 DUMP-PLUGIN OUTPUT
+
+To query more information about the plugin (and whether it is
+working), use:
+
+ nbdkit vddk --dump-plugin
+
+If the plugin is not present, not working or the library path is wrong
+you will get an error.
+
+If it works the output will include:
+
+=over 4
+
+=item C<vddk_default_libdir=...>
+
+The compiled-in library path. Use C<libdir=PATHNAME> to override this
+at runtime.
+
+=item C<vddk_has_nfchostport=1>
+
+If this is printed then the C<nfchostport=PORT> parameter is supported
+by this build.
+
+=item C<vddk_dll=...>
+
+Prints the full path to the VDDK shared library. Since this requires
+a glibc extension it may not be available in all builds of the plugin.
+
+=back
+
+=head1 DEBUGGING VDDK
+
+Debugging messages can be very helpful if you have problems connecting
+to VMware servers, or to find the list of available transport modes,
+or to diagnose SAN problems.
+
+Run nbdkit like this to see all debugging messages:
+
+ nbdkit -f -v vddk file=FILENAME [...]
+
+=head1 NOTES
+
+=head2 Sector size limitation
+
+The VDDK plugin can only answer read/write requests on whole 512 byte
+sector boundaries. This is because the VDDK Read and Write APIs only
+take sector numbers.
+
+The plugin could be extended in future to support byte granularity,
+but common NBD clients don't need it so it's not a priority.
+
+=head2 Threads
+
+Handling threads in the VDDK API is complex and does not map well to
+any of the thread models offered by nbdkit (see
+L<nbdkit-plugin(3)/THREADS>). The plugin uses the nbdkit
+C<SERIALIZE_ALL_REQUESTS> model, but technically even this is not
+completely safe. This is a subject of future work.
+
+=head2 Export names
+
+For VMs with multiple disks, it would be nice to map the disk names to
+NBD export names. However nbdkit core will need to be extended to
+support this.
+
+=head2 Out of memory errors
+
+In the verbose log you may see errors like:
+
+ nbdkit: vddk[3]: error: [NFC ERROR] NfcFssrvrProcessErrorMsg:
+ received NFC error 5 from server: Failed to allocate the
+ requested 2097176 bytes
+
+This seems especially common when there are multiple parallel
+connections open to the VMware server.
+
+These can be caused by resource limits set on the VMware server. You
+can increase the limit for the NFC service by editing
+F</etc/vmware/hostd/config.xml> and adjusting the
+C<E<lt>maxMemoryE<gt>> setting:
+
+ <nfcsvc>
+ <path>libnfcsvc.so</path>
+ <enabled>true</enabled>
+ <maxMemory>50331648</maxMemory>
+ <maxStreamMemory>10485760</maxStreamMemory>
+ </nfcsvc>
+
+and restarting the C<hostd> service:
+
+ # /etc/init.d/hostd restart
+
+For more information see L<https://bugzilla.redhat.com/1614276>.
+
+=head1 SUPPORTED VERSIONS OF VDDK
+
+This plugin requires VDDK E<ge> 5.1.1.
+
+It has been tested with all versions up to 6.7 (but should work with
+future versions).
+
+VDDK E<ge> 6.0 should be used if possible. This is the first version
+which added Flush support which is crucial for data integrity when
+writing.
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<virsh(1)>,
+L<https://www.vmware.com/support/developer/vddk/>
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2013-2018 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* Types and structs that we pass to or return from the VDDK API.
+ *
+ * Updated to VDDK 6.7
+ */
+
+#ifndef NBDKIT_VDDK_STRUCTS_H
+#define NBDKIT_VDDK_STRUCTS_H
+
+#include <stdarg.h>
+#include <stdint.h>
+
+typedef uint64_t VixError;
+#define VIX_OK 0
+
+#define VIXDISKLIB_FLAG_OPEN_UNBUFFERED 1
+#define VIXDISKLIB_FLAG_OPEN_SINGLE_LINK 2
+#define VIXDISKLIB_FLAG_OPEN_READ_ONLY 4
+#define VIXDISKLIB_SECTOR_SIZE 512
+
+#define VIXDISKLIB_MIN_CHUNK_SIZE 128
+#define VIXDISKLIB_MAX_CHUNK_NUMBER (512*1024)
+
+typedef void *VixDiskLibConnection;
+typedef void *VixDiskLibHandle;
+
+typedef void VixDiskLibGenericLogFunc (const char *fmt, va_list args);
+
+enum VixDiskLibCredType {
+ VIXDISKLIB_CRED_UID = 1,
+ VIXDISKLIB_CRED_SESSIONID = 2,
+ VIXDISKLIB_CRED_TICKETID = 3,
+ VIXDISKLIB_CRED_SSPI = 4,
+ VIXDISKLIB_CRED_UNKNOWN = 256
+};
+
+enum VixDiskLibSpecType {
+ VIXDISKLIB_SPEC_VMX = 0,
+ VIXDISKLIB_SPEC_VSTORAGE_OBJECT = 1,
+ VIXDISKLIB_SPEC_UNKNOWN = 2
+};
+
+struct VixDiskLibVStorageObjectSpec {
+ char *id;
+ char *datastoreMoRef;
+ char *ssId;
+};
+
+typedef struct VixDiskLibConnectParams {
+ char *vmxSpec;
+ char *serverName;
+ char *thumbPrint;
+ long reserved1;
+ enum VixDiskLibCredType credType;
+ union {
+ struct {
+ char *userName;
+ char *password;
+ } uid;
+ struct {
+ char *cookie;
+ char *userName;
+ char *key;
+ } sessionId;
+ void *reserved2;
+ } creds;
+ uint32_t port;
+ uint32_t nfcHostPort;
+ char *reserved3;
+ char reserved4[8];
+ void *reserved5;
+ union {
+ struct VixDiskLibVStorageObjectSpec vStorageObjSpec;
+ } spec;
+ enum VixDiskLibSpecType specType;
+} VixDiskLibConnectParams;
+
+struct VixDiskLibGeometry {
+ uint32_t cylinders;
+ uint32_t heads;
+ uint32_t sectors;
+};
+
+enum VixDiskLibAdapterType {
+ VIXDISKLIB_ADAPTER_IDE = 1,
+ VIXDISKLIB_ADAPTER_SCSI_BUSLOGIC = 2,
+ VIXDISKLIB_ADAPTER_SCSI_LSILOGIC = 3,
+ VIXDISKLIB_ADAPTER_UNKNOWN = 256
+};
+
+typedef struct VixDiskLibInfo {
+ struct VixDiskLibGeometry biosGeo;
+ struct VixDiskLibGeometry physGeo;
+ uint64_t capacity;
+ enum VixDiskLibAdapterType adapterType;
+ int numLinks;
+ char *parentFileNameHint;
+ char *uuid;
+} VixDiskLibInfo;
+
+typedef struct {
+ uint64_t offset;
+ uint64_t length;
+} VixDiskLibBlock;
+
+typedef struct {
+ uint32_t numBlocks;
+ VixDiskLibBlock blocks[1];
+} VixDiskLibBlockList;
+
+#endif /* NBDKIT_VDDK_STRUCTS_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <dlfcn.h>
+
+#define NBDKIT_API_VERSION 2
+
+#include <nbdkit-plugin.h>
+
+#include "isaligned.h"
+#include "minmax.h"
+#include "rounding.h"
+
+#include "vddk-structs.h"
+
+/* Enable extra disk info debugging with: -D vddk.diskinfo=1 */
+int vddk_debug_diskinfo;
+
+/* Enable debugging of extents code with: -D vddk.extents=1 */
+int vddk_debug_extents;
+
+/* The VDDK APIs that we call. These globals are initialized when the
+ * plugin is loaded (by vddk_load).
+ */
+static char *(*VixDiskLib_GetErrorText) (VixError err, const char *unused);
+static void (*VixDiskLib_FreeErrorText) (char *text);
+static VixError (*VixDiskLib_InitEx) (uint32_t major, uint32_t minor, VixDiskLibGenericLogFunc *log_function, VixDiskLibGenericLogFunc *warn_function, VixDiskLibGenericLogFunc *panic_function, const char *lib_dir, const char *config_file);
+static void (*VixDiskLib_Exit) (void);
+static VixDiskLibConnectParams *(*VixDiskLib_AllocateConnectParams) (void);
+static void (*VixDiskLib_FreeConnectParams) (VixDiskLibConnectParams *params);
+static VixError (*VixDiskLib_ConnectEx) (const VixDiskLibConnectParams *params, char read_only, const char *snapshot_ref, const char *transport_modes, VixDiskLibConnection *connection);
+static VixError (*VixDiskLib_Open) (const VixDiskLibConnection connection, const char *path, uint32_t flags, VixDiskLibHandle *handle);
+static const char *(*VixDiskLib_GetTransportMode) (VixDiskLibHandle handle);
+static VixError (*VixDiskLib_Close) (VixDiskLibHandle handle);
+static VixError (*VixDiskLib_Disconnect) (VixDiskLibConnection connection);
+static VixError (*VixDiskLib_GetInfo) (VixDiskLibHandle handle, VixDiskLibInfo **info);
+static void (*VixDiskLib_FreeInfo) (VixDiskLibInfo *info);
+static VixError (*VixDiskLib_Read) (VixDiskLibHandle handle, uint64_t start_sector, uint64_t nr_sectors, unsigned char *buf);
+static VixError (*VixDiskLib_Write) (VixDiskLibHandle handle, uint64_t start_sector, uint64_t nr_sectors, const unsigned char *buf);
+static VixError (*VixDiskLib_Flush) (VixDiskLibHandle handle);
+static VixError (*VixDiskLib_QueryAllocatedBlocks) (VixDiskLibHandle diskHandle, uint64_t start_sector, uint64_t nr_sectors, uint64_t chunk_size, VixDiskLibBlockList **block_list);
+static VixError (*VixDiskLib_FreeBlockList) (VixDiskLibBlockList *block_list);
+
+/* Parameters passed to InitEx. */
+#define VDDK_MAJOR 5
+#define VDDK_MINOR 1
+
+static void *dl = NULL; /* dlopen handle */
+static int init_called = 0; /* was InitEx called */
+
+static char *config = NULL; /* config */
+static const char *cookie = NULL; /* cookie */
+static const char *filename = NULL; /* file */
+static char *libdir = NULL; /* libdir */
+static int nfc_host_port = 0; /* nfchostport */
+static char *password = NULL; /* password */
+static int port = 0; /* port */
+static const char *server_name = NULL; /* server */
+static bool single_link = false; /* single-link */
+static const char *snapshot_moref = NULL; /* snapshot */
+static const char *thumb_print = NULL; /* thumbprint */
+static const char *transport_modes = NULL; /* transports */
+static bool unbuffered = false; /* unbuffered */
+static const char *username = NULL; /* user */
+static const char *vmx_spec = NULL; /* vm */
+static bool is_remote = false;
+
+#define VDDK_ERROR(err, fs, ...) \
+ do { \
+ char *vddk_err_msg; \
+ vddk_err_msg = VixDiskLib_GetErrorText ((err), NULL); \
+ nbdkit_error (fs ": %s", ##__VA_ARGS__, vddk_err_msg); \
+ VixDiskLib_FreeErrorText (vddk_err_msg); \
+ } while (0)
+
+#define DEBUG_CALL(fn, fs, ...) \
+ nbdkit_debug ("VDDK call: %s (" fs ")", fn, ##__VA_ARGS__)
+
+static void
+trim (char *str)
+{
+ size_t len = strlen (str);
+
+ if (len > 0 && str[len-1] == '\n')
+ str[len-1] = '\0';
+}
+
+/* Turn log messages from the library into nbdkit_debug. */
+static void
+debug_function (const char *fs, va_list args)
+{
+ char *str;
+
+ if (vasprintf (&str, fs, args) == -1) {
+ nbdkit_debug ("lost debug message: %s", fs);
+ return;
+ }
+
+ trim (str);
+
+ nbdkit_debug ("%s", str);
+ free (str);
+}
+
+/* Turn error messages from the library into nbdkit_error. */
+static void
+error_function (const char *fs, va_list args)
+{
+ char *str;
+
+ if (vasprintf (&str, fs, args) == -1) {
+ nbdkit_error ("lost error message: %s", fs);
+ return;
+ }
+
+ trim (str);
+
+ nbdkit_error ("%s", str);
+ free (str);
+}
+
+/* Load and unload the plugin. */
+static void
+vddk_load (void)
+{
+ static const char *sonames[] = {
+ /* Prefer the newest library in case multiple exist. */
+ "libvixDiskLib.so.6",
+ "libvixDiskLib.so.5",
+ };
+ size_t i;
+ char *orig_error = NULL;
+
+ /* Load the library. */
+ for (i = 0; i < sizeof sonames / sizeof sonames[0]; ++i) {
+ dl = dlopen (sonames[i], RTLD_NOW);
+ if (dl != NULL)
+ break;
+ if (i == 0) {
+ orig_error = dlerror ();
+ if (orig_error)
+ orig_error = strdup (orig_error);
+ }
+ }
+ if (dl == NULL) {
+ nbdkit_error ("%s\n\n"
+ "If '%s' is located on a non-standard path you may need to\n"
+ "set $LD_LIBRARY_PATH or edit /etc/ld.so.conf.\n\n"
+ "See the nbdkit-vddk-plugin(1) man page for details.",
+ orig_error ? : "(unknown error)", sonames[0]);
+ free (orig_error);
+ exit (EXIT_FAILURE);
+ }
+ free (orig_error);
+
+ /* Non-optional symbols. I have checked that all these exist in at
+ * least VDDK 5.1.1 (2011) which is the earliest version of VDDK
+ * that we support.
+ */
+#define LOAD(sym) \
+ do { \
+ sym = dlsym (dl, #sym); \
+ if (sym == NULL) { \
+ nbdkit_error ("required VDDK symbol \"%s\" is missing: %s", \
+ #sym, dlerror ()); \
+ exit (EXIT_FAILURE); \
+ } \
+ } while (0)
+ LOAD (VixDiskLib_GetErrorText);
+ LOAD (VixDiskLib_FreeErrorText);
+ LOAD (VixDiskLib_InitEx);
+ LOAD (VixDiskLib_Exit);
+ LOAD (VixDiskLib_ConnectEx);
+ LOAD (VixDiskLib_Open);
+ LOAD (VixDiskLib_GetTransportMode);
+ LOAD (VixDiskLib_Close);
+ LOAD (VixDiskLib_Disconnect);
+ LOAD (VixDiskLib_GetInfo);
+ LOAD (VixDiskLib_FreeInfo);
+ LOAD (VixDiskLib_Read);
+ LOAD (VixDiskLib_Write);
+ LOAD (VixDiskLib_FreeConnectParams);
+#undef LOAD
+
+#define LOAD_OPTIONAL(sym) sym = dlsym (dl, #sym)
+ /* Added in VDDK 6.0, this will be NULL in earlier versions. */
+ LOAD_OPTIONAL (VixDiskLib_Flush);
+
+ /* Added in VDDK 6.7, these will be NULL for earlier versions: */
+ LOAD_OPTIONAL (VixDiskLib_QueryAllocatedBlocks);
+ LOAD_OPTIONAL (VixDiskLib_FreeBlockList);
+ LOAD_OPTIONAL (VixDiskLib_AllocateConnectParams);
+#undef LOAD_OPTIONAL
+}
+
+static void
+vddk_unload (void)
+{
+ if (init_called) {
+ DEBUG_CALL ("VixDiskLib_Exit", "");
+ VixDiskLib_Exit ();
+ }
+ if (dl)
+ dlclose (dl);
+ free (config);
+ free (libdir);
+ free (password);
+}
+
+/* Configuration. */
+static int
+vddk_config (const char *key, const char *value)
+{
+ if (strcmp (key, "config") == 0) {
+ /* See FILENAMES AND PATHS in nbdkit-plugin(3). */
+ free (config);
+ config = nbdkit_realpath (value);
+ if (!config)
+ return -1;
+ }
+ else if (strcmp (key, "cookie") == 0) {
+ cookie = value;
+ }
+ else if (strcmp (key, "file") == 0) {
+ /* NB: Don't convert this to an absolute path, because in the
+ * remote case this can be a path located on the VMware server.
+ * For local paths the user must supply an absolute path.
+ */
+ filename = value;
+ }
+ else if (strcmp (key, "libdir") == 0) {
+ /* See FILENAMES AND PATHS in nbdkit-plugin(3). */
+ free (libdir);
+ libdir = nbdkit_realpath (value);
+ if (!libdir)
+ return -1;
+ }
+ else if (strcmp (key, "nfchostport") == 0) {
+ if (sscanf (value, "%d", &nfc_host_port) != 1) {
+ nbdkit_error ("cannot parse nfchostport: %s", value);
+ return -1;
+ }
+ }
+ else if (strcmp (key, "password") == 0) {
+ free (password);
+ if (nbdkit_read_password (value, &password) == -1)
+ return -1;
+ }
+ else if (strcmp (key, "port") == 0) {
+ if (sscanf (value, "%d", &port) != 1) {
+ nbdkit_error ("cannot parse port: %s", value);
+ return -1;
+ }
+ }
+ else if (strcmp (key, "server") == 0) {
+ server_name = value;
+ }
+ else if (strcmp (key, "single-link") == 0) {
+ int r = nbdkit_parse_bool (value);
+
+ if (r == -1)
+ return -1;
+ single_link = r;
+ }
+ else if (strcmp (key, "snapshot") == 0) {
+ snapshot_moref = value;
+ }
+ else if (strcmp (key, "thumbprint") == 0) {
+ thumb_print = value;
+ }
+ else if (strcmp (key, "transports") == 0) {
+ transport_modes = value;
+ }
+ else if (strcmp (key, "unbuffered") == 0) {
+ int r = nbdkit_parse_bool (value);
+
+ if (r == -1)
+ return -1;
+ unbuffered = r;
+ }
+ else if (strcmp (key, "user") == 0) {
+ username = value;
+ }
+ else if (strcmp (key, "vimapiver") == 0) {
+ /* Ignored for backwards compatibility. */
+ }
+ else if (strcmp (key, "vm") == 0) {
+ vmx_spec = value;
+ }
+ else {
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+vddk_config_complete (void)
+{
+ VixError err;
+
+ if (filename == NULL) {
+ nbdkit_error ("you must supply the file=<FILENAME> parameter "
+ "after the plugin name on the command line");
+ return -1;
+ }
+
+ /* For remote connections, check all the parameters have been
+ * passed. Note that VDDK will segfault if parameters that it
+ * expects are NULL (and there's no real way to tell what parameters
+ * it is expecting). This implements the same test that the VDDK
+ * sample program does.
+ */
+ is_remote =
+ vmx_spec ||
+ server_name ||
+ username ||
+ password ||
+ cookie ||
+ thumb_print ||
+ port ||
+ nfc_host_port;
+
+ if (is_remote) {
+#define missing(test, param) \
+ if (test) { \
+ nbdkit_error ("remote connection requested, missing parameter: %s", \
+ param); \
+ return -1; \
+ }
+ missing (!server_name, "server");
+ missing (!username, "user");
+ missing (!password, "password");
+ missing (!vmx_spec, "vm");
+#undef missing
+ }
+
+ /* Initialize VDDK library. */
+ DEBUG_CALL ("VixDiskLib_InitEx",
+ "%d, %d, &debug_fn, &error_fn, &error_fn, %s, %s",
+ VDDK_MAJOR, VDDK_MINOR,
+ libdir ? : VDDK_LIBDIR, config ? : "NULL");
+ err = VixDiskLib_InitEx (VDDK_MAJOR, VDDK_MINOR,
+ &debug_function, /* log function */
+ &error_function, /* warn function */
+ &error_function, /* panic function */
+ libdir ? : VDDK_LIBDIR, config);
+ if (err != VIX_OK) {
+ VDDK_ERROR (err, "VixDiskLib_InitEx");
+ exit (EXIT_FAILURE);
+ }
+ init_called = 1;
+
+ return 0;
+}
+
+#define vddk_config_help \
+ "file=<FILENAME> (required) The filename (eg. VMDK file) to serve.\n" \
+ "Many optional parameters are supported, see nbdkit-vddk-plugin(3)."
+
+static void
+vddk_dump_plugin (void)
+{
+ printf ("vddk_default_libdir=%s\n", VDDK_LIBDIR);
+ printf ("vddk_has_nfchostport=1\n");
+
+#if defined(HAVE_DLADDR)
+ /* It would be nice to print the version of VDDK from the shared
+ * library, but VDDK does not provide it. Instead we can get the
+ * path to the library using the glibc extension dladdr, and then
+ * resolve symlinks using realpath. The final pathname should
+ * contain the version number.
+ */
+ Dl_info info;
+ char *p;
+ if (dladdr (VixDiskLib_InitEx, &info) != 0 &&
+ info.dli_fname != NULL &&
+ (p = nbdkit_realpath (info.dli_fname)) != NULL) {
+ printf ("vddk_dll=%s\n", p);
+ free (p);
+ }
+#endif
+}
+
+/* XXX To really do threading correctly in accordance with the VDDK
+ * documentation, we must do all open/close calls from a single
+ * thread. This is a huge pain.
+ */
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+
+/* The per-connection handle. */
+struct vddk_handle {
+ VixDiskLibConnectParams *params; /* connection parameters */
+ VixDiskLibConnection connection; /* connection */
+ VixDiskLibHandle handle; /* disk handle */
+};
+
+static inline VixDiskLibConnectParams *
+allocate_connect_params (void)
+{
+ VixDiskLibConnectParams *ret;
+
+ if (VixDiskLib_AllocateConnectParams != NULL) {
+ DEBUG_CALL ("VixDiskLib_AllocateConnectParams", "");
+ ret = VixDiskLib_AllocateConnectParams ();
+ }
+ else
+ ret = calloc (1, sizeof (VixDiskLibConnectParams));
+
+ return ret;
+}
+
+static inline void
+free_connect_params (VixDiskLibConnectParams *params)
+{
+ /* Only use FreeConnectParams if AllocateConnectParams was
+ * originally called. Otherwise use free.
+ */
+ if (VixDiskLib_AllocateConnectParams != NULL) {
+ DEBUG_CALL ("VixDiskLib_FreeConnectParams", "params");
+ VixDiskLib_FreeConnectParams (params);
+ }
+ else
+ free (params);
+}
+
+/* Create the per-connection handle. */
+static void *
+vddk_open (int readonly)
+{
+ struct vddk_handle *h;
+ VixError err;
+ uint32_t flags;
+
+ h = malloc (sizeof *h);
+ if (h == NULL) {
+ nbdkit_error ("malloc: %m");
+ return NULL;
+ }
+
+ h->params = allocate_connect_params ();
+ if (h->params == NULL) {
+ nbdkit_error ("allocate VixDiskLibConnectParams: %m");
+ goto err0;
+ }
+
+ if (is_remote) {
+ h->params->vmxSpec = (char *) vmx_spec;
+ h->params->serverName = (char *) server_name;
+ if (cookie == NULL) {
+ h->params->credType = VIXDISKLIB_CRED_UID;
+ h->params->creds.uid.userName = (char *) username;
+ h->params->creds.uid.password = password;
+ }
+ else {
+ h->params->credType = VIXDISKLIB_CRED_SESSIONID;
+ h->params->creds.sessionId.cookie = (char *) cookie;
+ h->params->creds.sessionId.userName = (char *) username;
+ h->params->creds.sessionId.key = password;
+ }
+ h->params->thumbPrint = (char *) thumb_print;
+ h->params->port = port;
+ h->params->nfcHostPort = nfc_host_port;
+ }
+
+ /* XXX Some documentation suggests we should call
+ * VixDiskLib_PrepareForAccess here. It may be required for
+ * Advanced Transport modes, but I could not make it work with
+ * either ESXi or vCenter servers.
+ */
+
+ DEBUG_CALL ("VixDiskLib_ConnectEx",
+ "h->params, %d, %s, %s, &connection",
+ readonly,
+ snapshot_moref ? : "NULL",
+ transport_modes ? : "NULL");
+ err = VixDiskLib_ConnectEx (h->params,
+ readonly,
+ snapshot_moref,
+ transport_modes,
+ &h->connection);
+ if (err != VIX_OK) {
+ VDDK_ERROR (err, "VixDiskLib_ConnectEx");
+ goto err1;
+ }
+
+ flags = 0;
+ if (readonly)
+ flags |= VIXDISKLIB_FLAG_OPEN_READ_ONLY;
+ if (single_link)
+ flags |= VIXDISKLIB_FLAG_OPEN_SINGLE_LINK;
+ if (unbuffered)
+ flags |= VIXDISKLIB_FLAG_OPEN_UNBUFFERED;
+
+ DEBUG_CALL ("VixDiskLib_Open",
+ "connection, %s, %d, &handle", filename, flags);
+ err = VixDiskLib_Open (h->connection, filename, flags, &h->handle);
+ if (err != VIX_OK) {
+ VDDK_ERROR (err, "VixDiskLib_Open: %s", filename);
+ goto err2;
+ }
+
+ nbdkit_debug ("transport mode: %s",
+ VixDiskLib_GetTransportMode (h->handle));
+
+ return h;
+
+ err2:
+ DEBUG_CALL ("VixDiskLib_Disconnect", "connection");
+ VixDiskLib_Disconnect (h->connection);
+ err1:
+ free_connect_params (h->params);
+ err0:
+ free (h);
+ return NULL;
+}
+
+/* Free up the per-connection handle. */
+static void
+vddk_close (void *handle)
+{
+ struct vddk_handle *h = handle;
+
+ free_connect_params (h->params);
+ DEBUG_CALL ("VixDiskLib_Close", "handle");
+ VixDiskLib_Close (h->handle);
+ DEBUG_CALL ("VixDiskLib_Disconnect", "connection");
+ VixDiskLib_Disconnect (h->connection);
+ free (h);
+}
+
+/* Get the file size. */
+static int64_t
+vddk_get_size (void *handle)
+{
+ struct vddk_handle *h = handle;
+ VixDiskLibInfo *info;
+ VixError err;
+ uint64_t size;
+
+ DEBUG_CALL ("VixDiskLib_GetInfo", "handle, &info");
+ err = VixDiskLib_GetInfo (h->handle, &info);
+ if (err != VIX_OK) {
+ VDDK_ERROR (err, "VixDiskLib_GetInfo");
+ return -1;
+ }
+
+ size = info->capacity * (uint64_t)VIXDISKLIB_SECTOR_SIZE;
+
+ if (vddk_debug_diskinfo) {
+ nbdkit_debug ("disk info: capacity: %" PRIu64 " (size: %" PRIi64 ")",
+ info->capacity, size);
+ nbdkit_debug ("disk info: biosGeo: C:%" PRIu32 " H:%" PRIu32 " S:%" PRIu32,
+ info->biosGeo.cylinders,
+ info->biosGeo.heads,
+ info->biosGeo.sectors);
+ nbdkit_debug ("disk info: physGeo: C:%" PRIu32 " H:%" PRIu32 " S:%" PRIu32,
+ info->physGeo.cylinders,
+ info->physGeo.heads,
+ info->physGeo.sectors);
+ nbdkit_debug ("disk info: adapter type: %d",
+ (int) info->adapterType);
+ nbdkit_debug ("disk info: num links: %d", info->numLinks);
+ nbdkit_debug ("disk info: parent filename hint: %s",
+ info->parentFileNameHint ? : "NULL");
+ nbdkit_debug ("disk info: uuid: %s",
+ info->uuid ? : "NULL");
+ }
+
+ DEBUG_CALL ("VixDiskLib_FreeInfo", "info");
+ VixDiskLib_FreeInfo (info);
+
+ return (int64_t) size;
+}
+
+/* Read data from the file.
+ *
+ * Note that reads have to be aligned to sectors (XXX).
+ */
+static int
+vddk_pread (void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ struct vddk_handle *h = handle;
+ VixError err;
+
+ /* Align to sectors. */
+ if (!IS_ALIGNED (offset, VIXDISKLIB_SECTOR_SIZE)) {
+ nbdkit_error ("read is not aligned to sectors");
+ return -1;
+ }
+ if (!IS_ALIGNED (count, VIXDISKLIB_SECTOR_SIZE)) {
+ nbdkit_error ("read is not aligned to sectors");
+ return -1;
+ }
+ offset /= VIXDISKLIB_SECTOR_SIZE;
+ count /= VIXDISKLIB_SECTOR_SIZE;
+
+ DEBUG_CALL ("VixDiskLib_Read",
+ "handle, %" PRIu64 " sectors, %" PRIu32 " sectors, buffer",
+ offset, count);
+ err = VixDiskLib_Read (h->handle, offset, count, buf);
+ if (err != VIX_OK) {
+ VDDK_ERROR (err, "VixDiskLib_Read");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int vddk_flush (void *handle, uint32_t flags);
+
+/* Write data to the file.
+ *
+ * Note that writes have to be aligned to sectors (XXX).
+ */
+static int
+vddk_pwrite (void *handle, const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ const bool fua = flags & NBDKIT_FLAG_FUA;
+ struct vddk_handle *h = handle;
+ VixError err;
+
+ /* Align to sectors. */
+ if (!IS_ALIGNED (offset, VIXDISKLIB_SECTOR_SIZE)) {
+ nbdkit_error ("read is not aligned to sectors");
+ return -1;
+ }
+ if (!IS_ALIGNED (count, VIXDISKLIB_SECTOR_SIZE)) {
+ nbdkit_error ("read is not aligned to sectors");
+ return -1;
+ }
+ offset /= VIXDISKLIB_SECTOR_SIZE;
+ count /= VIXDISKLIB_SECTOR_SIZE;
+
+ DEBUG_CALL ("VixDiskLib_Write",
+ "handle, %" PRIu64 " sectors, %" PRIu32 " sectors, buffer",
+ offset, count);
+ err = VixDiskLib_Write (h->handle, offset, count, buf);
+ if (err != VIX_OK) {
+ VDDK_ERROR (err, "VixDiskLib_Write");
+ return -1;
+ }
+
+ if (fua && vddk_flush (handle, 0) == -1)
+ return -1;
+
+ return 0;
+}
+
+/* Flush data to the file. */
+static int
+vddk_flush (void *handle, uint32_t flags)
+{
+ struct vddk_handle *h = handle;
+ VixError err;
+
+ /* The Flush call was not available in VDDK < 6.0 so this is simply
+ * ignored on earlier versions.
+ */
+ if (VixDiskLib_Flush == NULL)
+ return 0;
+
+ DEBUG_CALL ("VixDiskLib_Flush", "handle");
+ err = VixDiskLib_Flush (h->handle);
+ if (err != VIX_OK) {
+ VDDK_ERROR (err, "VixDiskLib_Flush");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+vddk_can_extents (void *handle)
+{
+ struct vddk_handle *h = handle;
+ VixError err;
+ VixDiskLibBlockList *block_list;
+
+ /* This call was added in VDDK 6.7. In earlier versions the
+ * function pointer will be NULL and we cannot query extents.
+ */
+ if (VixDiskLib_QueryAllocatedBlocks == NULL) {
+ nbdkit_debug ("can_extents: VixDiskLib_QueryAllocatedBlocks == NULL, "
+ "probably this is VDDK < 6.7");
+ return 0;
+ }
+
+ /* However even when the call is available it rarely works well so
+ * the best thing we can do here is to try the call and if it's
+ * non-functional return false.
+ */
+ DEBUG_CALL ("VixDiskLib_QueryAllocatedBlocks",
+ "handle, 0, %d sectors, %d sectors",
+ VIXDISKLIB_MIN_CHUNK_SIZE, VIXDISKLIB_MIN_CHUNK_SIZE);
+ err = VixDiskLib_QueryAllocatedBlocks (h->handle,
+ 0, VIXDISKLIB_MIN_CHUNK_SIZE,
+ VIXDISKLIB_MIN_CHUNK_SIZE,
+ &block_list);
+ if (err == VIX_OK) {
+ DEBUG_CALL ("VixDiskLib_FreeBlockList", "block_list");
+ VixDiskLib_FreeBlockList (block_list);
+ }
+ if (err != VIX_OK) {
+ char *errmsg = VixDiskLib_GetErrorText (err, NULL);
+ nbdkit_debug ("can_extents: VixDiskLib_QueryAllocatedBlocks test failed, "
+ "extents support will be disabled: "
+ "original error: %s",
+ errmsg);
+ VixDiskLib_FreeErrorText (errmsg);
+ return 0;
+ }
+
+ return 1;
+}
+
+static int
+add_extent (struct nbdkit_extents *extents,
+ uint64_t *position, uint64_t next_position, bool is_hole)
+{
+ uint32_t type = 0;
+ const uint64_t length = next_position - *position;
+
+ if (is_hole) {
+ type = NBDKIT_EXTENT_HOLE;
+ /* Images opened as single link might be backed by another file in the
+ chain, so the holes are not guaranteed to be zeroes. */
+ if (!single_link)
+ type |= NBDKIT_EXTENT_ZERO;
+ }
+
+ assert (*position <= next_position);
+ if (*position == next_position)
+ return 0;
+
+ if (vddk_debug_extents)
+ nbdkit_debug ("adding extent type %s at [%" PRIu64 "...%" PRIu64 "]",
+ is_hole ? "hole" : "allocated data",
+ *position, next_position-1);
+ if (nbdkit_add_extent (extents, *position, length, type) == -1)
+ return -1;
+
+ *position = next_position;
+ return 0;
+}
+
+static int
+vddk_extents (void *handle, uint32_t count, uint64_t offset, uint32_t flags,
+ struct nbdkit_extents *extents)
+{
+ struct vddk_handle *h = handle;
+ bool req_one = flags & NBDKIT_FLAG_REQ_ONE;
+ uint64_t position, end, start_sector;
+
+ position = offset;
+ end = offset + count;
+
+ /* We can only query whole chunks. Therefore start with the first
+ * chunk before offset.
+ */
+ start_sector =
+ ROUND_DOWN (offset, VIXDISKLIB_MIN_CHUNK_SIZE * VIXDISKLIB_SECTOR_SIZE)
+ / VIXDISKLIB_SECTOR_SIZE;
+ while (start_sector * VIXDISKLIB_SECTOR_SIZE < end) {
+ VixError err;
+ uint32_t i;
+ uint64_t nr_chunks, nr_sectors;
+ VixDiskLibBlockList *block_list;
+
+ assert (IS_ALIGNED (start_sector, VIXDISKLIB_MIN_CHUNK_SIZE));
+
+ nr_chunks =
+ ROUND_UP (end - start_sector * VIXDISKLIB_SECTOR_SIZE,
+ VIXDISKLIB_MIN_CHUNK_SIZE * VIXDISKLIB_SECTOR_SIZE)
+ / (VIXDISKLIB_MIN_CHUNK_SIZE * VIXDISKLIB_SECTOR_SIZE);
+ nr_chunks = MIN (nr_chunks, VIXDISKLIB_MAX_CHUNK_NUMBER);
+ nr_sectors = nr_chunks * VIXDISKLIB_MIN_CHUNK_SIZE;
+
+ DEBUG_CALL ("VixDiskLib_QueryAllocatedBlocks",
+ "handle, %" PRIu64 " sectors, %" PRIu64 " sectors, "
+ "%d sectors",
+ start_sector, nr_sectors, VIXDISKLIB_MIN_CHUNK_SIZE);
+ err = VixDiskLib_QueryAllocatedBlocks (h->handle,
+ start_sector, nr_sectors,
+ VIXDISKLIB_MIN_CHUNK_SIZE,
+ &block_list);
+ if (err != VIX_OK) {
+ VDDK_ERROR (err, "VixDiskLib_QueryAllocatedBlocks");
+ return -1;
+ }
+
+ for (i = 0; i < block_list->numBlocks; ++i) {
+ uint64_t blk_offset, blk_length;
+
+ blk_offset = block_list->blocks[i].offset * VIXDISKLIB_SECTOR_SIZE;
+ blk_length = block_list->blocks[i].length * VIXDISKLIB_SECTOR_SIZE;
+
+ /* The query returns allocated blocks. We must insert holes
+ * between the blocks as necessary.
+ */
+ if ((position < blk_offset &&
+ add_extent (extents, &position, blk_offset, true) == -1) ||
+ (add_extent (extents,
+ &position, blk_offset + blk_length, false) == -1)) {
+ DEBUG_CALL ("VixDiskLib_FreeBlockList", "block_list");
+ VixDiskLib_FreeBlockList (block_list);
+ return -1;
+ }
+ }
+ DEBUG_CALL ("VixDiskLib_FreeBlockList", "block_list");
+ VixDiskLib_FreeBlockList (block_list);
+
+ /* There's an implicit hole after the returned list of blocks, up
+ * to the end of the QueryAllocatedBlocks request.
+ */
+ if (add_extent (extents,
+ &position,
+ (start_sector + nr_sectors) * VIXDISKLIB_SECTOR_SIZE,
+ true) == -1)
+ return -1;
+
+ start_sector += nr_sectors;
+
+ /* If one extent was requested, as long as we've added an extent
+ * overlapping the original offset we're done.
+ */
+ if (req_one && position > offset)
+ break;
+ }
+
+ return 0;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "vddk",
+ .longname = "VMware VDDK plugin",
+ .version = PACKAGE_VERSION,
+ .load = vddk_load,
+ .unload = vddk_unload,
+ .config = vddk_config,
+ .config_complete = vddk_config_complete,
+ .config_help = vddk_config_help,
+ .dump_plugin = vddk_dump_plugin,
+ .open = vddk_open,
+ .close = vddk_close,
+ .get_size = vddk_get_size,
+ .pread = vddk_pread,
+ .pwrite = vddk_pwrite,
+ .flush = vddk_flush,
+ .can_extents = vddk_can_extents,
+ .extents = vddk_extents,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+# nbdkit
+# Copyright (C) 2017-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit-zero-plugin.pod
+
+plugin_LTLIBRARIES = nbdkit-zero-plugin.la
+
+nbdkit_zero_plugin_la_SOURCES = \
+ zero.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+
+nbdkit_zero_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+nbdkit_zero_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+nbdkit_zero_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared \
+ -Wl,--version-script=$(top_srcdir)/plugins/plugins.syms
+
+if HAVE_POD
+
+man_MANS = nbdkit-zero-plugin.1
+CLEANFILES += $(man_MANS)
+
+nbdkit-zero-plugin.1: nbdkit-zero-plugin.pod
+ $(PODWRAPPER) --section=1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+endif HAVE_POD
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2017-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
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+
+distclean-tags:
+ -rm -f TAGS ID GTAGS GRTAGS GSYMS GPATH tags
+
+distdir: $(BUILT_SOURCES)
+ $(MAKE) $(AM_MAKEFLAGS) distdir-am
+
+distdir-am: $(DISTFILES)
+ @srcdirstrip=`echo "$(srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+ topsrcdirstrip=`echo "$(top_srcdir)" | sed 's/[].[^$$\\*]/\\\\&/g'`; \
+ list='$(DISTFILES)'; \
+ dist_files=`for file in $$list; do echo $$file; done | \
+ sed -e "s|^$$srcdirstrip/||;t" \
+ -e "s|^$$topsrcdirstrip/|$(top_builddir)/|;t"`; \
+ case $$dist_files in \
+ */*) $(MKDIR_P) `echo "$$dist_files" | \
+ sed '/\//!d;s|^|$(distdir)/|;s,/[^/]*$$,,' | \
+ sort -u` ;; \
+ esac; \
+ for file in $$dist_files; do \
+ if test -f $$file || test -d $$file; then d=.; else d=$(srcdir); fi; \
+ if test -d $$d/$$file; then \
+ dir=`echo "/$$file" | sed -e 's,/[^/]*$$,,'`; \
+ if test -d "$(distdir)/$$file"; then \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ if test -d $(srcdir)/$$file && test $$d != $(srcdir); then \
+ cp -fpR $(srcdir)/$$file "$(distdir)$$dir" || exit 1; \
+ find "$(distdir)/$$file" -type d ! -perm -700 -exec chmod u+rwx {} \;; \
+ fi; \
+ cp -fpR $$d/$$file "$(distdir)$$dir" || exit 1; \
+ else \
+ test -f "$(distdir)/$$file" \
+ || cp -p $$d/$$file "$(distdir)/$$file" \
+ || exit 1; \
+ fi; \
+ done
+check-am: all-am
+check: check-am
+all-am: Makefile $(LTLIBRARIES) $(MANS)
+installdirs:
+ for dir in "$(DESTDIR)$(plugindir)" "$(DESTDIR)$(man1dir)"; do \
+ test -z "$$dir" || $(MKDIR_P) "$$dir"; \
+ done
+install: install-am
+install-exec: install-exec-am
+install-data: install-data-am
+uninstall: uninstall-am
+
+install-am: all-am
+ @$(MAKE) $(AM_MAKEFLAGS) install-exec-am install-data-am
+
+installcheck: installcheck-am
+install-strip:
+ if test -z '$(STRIP)'; then \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ install; \
+ else \
+ $(MAKE) $(AM_MAKEFLAGS) INSTALL_PROGRAM="$(INSTALL_STRIP_PROGRAM)" \
+ install_sh_PROGRAM="$(INSTALL_STRIP_PROGRAM)" INSTALL_STRIP_FLAG=-s \
+ "INSTALL_PROGRAM_ENV=STRIPPROG='$(STRIP)'" install; \
+ fi
+mostlyclean-generic:
+
+clean-generic:
+ -test -z "$(CLEANFILES)" || rm -f $(CLEANFILES)
+
+distclean-generic:
+ -test -z "$(CONFIG_CLEAN_FILES)" || rm -f $(CONFIG_CLEAN_FILES)
+ -test . = "$(srcdir)" || test -z "$(CONFIG_CLEAN_VPATH_FILES)" || rm -f $(CONFIG_CLEAN_VPATH_FILES)
+
+maintainer-clean-generic:
+ @echo "This command is intended for maintainers to use"
+ @echo "it deletes files that may require special tools to rebuild."
+clean: clean-am
+
+clean-am: clean-generic clean-libtool clean-pluginLTLIBRARIES \
+ mostlyclean-am
+
+distclean: distclean-am
+ -rm -f ./$(DEPDIR)/nbdkit_zero_plugin_la-zero.Plo
+ -rm -f Makefile
+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-man install-pluginLTLIBRARIES
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am:
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man: install-man1
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f ./$(DEPDIR)/nbdkit_zero_plugin_la-zero.Plo
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-man uninstall-pluginLTLIBRARIES
+
+uninstall-man: uninstall-man1
+
+.MAKE: install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-am clean \
+ clean-generic clean-libtool clean-pluginLTLIBRARIES \
+ cscopelist-am ctags ctags-am distclean distclean-compile \
+ distclean-generic distclean-libtool distclean-tags distdir dvi \
+ dvi-am html html-am info info-am install install-am \
+ install-data install-data-am install-dvi install-dvi-am \
+ install-exec install-exec-am install-html install-html-am \
+ install-info install-info-am install-man install-man1 \
+ install-pdf install-pdf-am install-pluginLTLIBRARIES \
+ install-ps install-ps-am install-strip installcheck \
+ installcheck-am installdirs maintainer-clean \
+ maintainer-clean-generic mostlyclean mostlyclean-compile \
+ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+ tags tags-am uninstall uninstall-am uninstall-man \
+ uninstall-man1 uninstall-pluginLTLIBRARIES
+
+.PRECIOUS: Makefile
+
+
+@HAVE_POD_TRUE@nbdkit-zero-plugin.1: nbdkit-zero-plugin.pod
+@HAVE_POD_TRUE@ $(PODWRAPPER) --section=1 --man $@ \
+@HAVE_POD_TRUE@ --html $(top_builddir)/html/$@.html \
+@HAVE_POD_TRUE@ $<
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+=head1 NAME
+
+nbdkit-zero-plugin - nbdkit zero length plugin
+
+=head1 SYNOPSIS
+
+ nbdkit zero
+
+=head1 DESCRIPTION
+
+C<nbdkit-zero-plugin> is a zero length plugin for L<nbdkit(1)>. It
+presents a virtual device of length zero bytes.
+
+This plugin is mainly good for testing corner cases in nbdkit, the NBD
+protocol and NBD clients.
+
+=head1 SEE ALSO
+
+L<nbdkit(1)>,
+L<nbdkit-plugin(3)>,
+L<nbdkit-data-plugin(1)>,
+L<nbdkit-full-plugin(1)>,
+L<nbdkit-null-plugin(1)>,
+L<nbdkit-pattern-plugin(1)>,
+L<nbdkit-random-plugin(1)>.
+
+=head1 AUTHORS
+
+Richard W.M. Jones
+
+=head1 COPYRIGHT
+
+Copyright (C) 2018 Red Hat Inc.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <errno.h>
+
+#define NBDKIT_API_VERSION 2
+#include <nbdkit-plugin.h>
+
+static int
+zero_config (const char *key, const char *value)
+{
+ nbdkit_error ("unknown parameter '%s'", key);
+ return -1;
+}
+
+/* No meaning, just used as the address for the handle. */
+static int zero;
+
+/* Create the per-connection handle. */
+static void *
+zero_open (int readonly)
+{
+ return &zero;
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* Get the disk size. */
+static int64_t
+zero_get_size (void *handle)
+{
+ return 0;
+}
+
+/* Ideally the read plugin would be optional. */
+static int
+zero_pread (void *handle, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ nbdkit_error ("unexpected call to pread");
+ return -1;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "zero",
+ .version = PACKAGE_VERSION,
+ .config = zero_config,
+ .open = zero_open,
+ .get_size = zero_get_size,
+ .pread = zero_pread,
+ /* In this plugin, errno is preserved properly along error return
+ * paths from failed system calls.
+ */
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+#!/usr/bin/env perl
+# podwrapper.pl
+# @configure_input@
+# Copyright (C) 2010-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+use warnings;
+use strict;
+
+use Pod::Usage;
+use Getopt::Long;
+use Pod::Man;
+use Pod::Simple;
+use Pod::Simple::Text;
+use Pod::Simple::XHTML;
+use File::Basename;
+
+# https://www.redhat.com/archives/libguestfs/2013-May/thread.html#00088
+eval { $Text::Wrap::huge = "overflow" };
+
+=head1 NAME
+
+podwrapper.pl - generate documentation from POD input files
+
+=head1 SYNOPSIS
+
+ EXTRA_DIST = foo.pod
+
+ if HAVE_POD
+
+ man_MANS = foo.1
+ CLEANFILES += $(man_MANS)
+
+ foo.1: foo.pod
+ $(PODWRAPPER) --section 1 --man $@ \
+ --html $(top_builddir)/html/$@.html \
+ $<
+
+ endif HAVE_POD
+
+=head1 DESCRIPTION
+
+podwrapper.pl is a Perl script that generates various output formats
+from POD input files that nbdkit uses for most documentation.
+
+You must specify one input file, and one or more output formats. The
+output options are I<--man>, I<--html> and I<--text> (see below).
+
+In C<Makefile.am> files, use a variation of the boilerplate shown in
+the L</SYNOPSIS> section above.
+
+For information about the POD format, see L<perlpod(1)>.
+
+=head1 OPTIONS
+
+=over 4
+
+=cut
+
+my $help;
+
+=item B<--help>
+
+Display brief help.
+
+=cut
+
+my $html;
+
+=item B<--html output.html>
+
+Write a web page to C<output.html>. If this option is not
+given, then no web page output is produced.
+
+=cut
+
+my @inserts;
+
+=item B<--insert filename:__PATTERN__>
+
+In the input file, replace the literal text C<__PATTERN__> with the
+replacement file C<filename>. You can give this option multiple
+times.
+
+The contents of C<filename> are treated as POD.
+Compare and contrast with I<--verbatim>.
+
+Although it is conventional to use C<__...__> (double underscores) for
+patterns, in fact you can use any string as the pattern.
+
+=cut
+
+my $man;
+
+=item B<--man output.n>
+
+Write a man page to C<output.n> (C<n> is the manual section number).
+If this option is not given, then no man page output is produced.
+
+=cut
+
+my $name;
+
+=item B<--name name>
+
+Set the name of the man page. If not set, defaults to the basename
+of the input file.
+
+=cut
+
+my $section;
+
+=item B<--section N>
+
+Set the section of the man page (a number such as C<1> for
+command line utilities or C<3> for C API documentation). If
+not set, defaults to C<1>.
+
+=cut
+
+my $text;
+
+=item B<--text output.txt>
+
+Write a text file to C<output.txt>. If this option is not
+given, then no text output is produced.
+
+=cut
+
+my @verbatims;
+
+=item B<--verbatim filename:__PATTERN__>
+
+In the input file, replace the literal text C<__PATTERN__> with the
+replacement file C<filename>. You can give this option multiple
+times.
+
+The contents of C<filename> are inserted as verbatim text, and
+are I<not> interpreted as POD.
+Compare and contrast with I<--insert>.
+
+Although it is conventional to use C<__...__> (double underscores) for
+patterns, in fact you can use any string as the pattern.
+
+=cut
+
+# Clean up the program name.
+my $progname = $0;
+$progname =~ s{.*/}{};
+
+# Parse options.
+GetOptions ("help|?" => \$help,
+ "html=s" => \$html,
+ "insert=s" => \@inserts,
+ "man=s" => \$man,
+ "name=s" => \$name,
+ "section=s" => \$section,
+ "text=s" => \$text,
+ "verbatim=s" => \@verbatims,
+ ) or pod2usage (2);
+pod2usage (1) if $help;
+
+die "$progname: missing argument: podwrapper input.pod\n" unless @ARGV == 1;
+my $input = $ARGV[0];
+
+# There should be at least one output.
+die "$progname: $input: no output format specified. Use --man and/or --html and/or --text.\n"
+ unless defined $man || defined $html || defined $text;
+
+# Default for $name and $section.
+$name = basename ($input, ".pod") unless defined $name;
+$section = 1 unless defined $section;
+
+# Note that these @...@ are substituted by ./configure.
+my $abs_top_srcdir = "@abs_top_srcdir@";
+my $abs_top_builddir = "@abs_top_builddir@";
+my $package_name = "@PACKAGE_NAME@";
+my $package_version = "@PACKAGE_VERSION@";
+
+die "$progname: ./configure substitutions were not performed"
+ unless $abs_top_srcdir && $abs_top_builddir &&
+ $package_name && $package_version;
+
+# Create a stable date (thanks Hilko Bengen).
+my $date;
+my $filename = "$abs_top_srcdir/.git";
+if (!$date && -d $filename) {
+ local $ENV{GIT_DIR} = $filename;
+ $_ = `git show -s --format=%ci`;
+ $date = $1 if /^(\d+-\d+-\d+)\s/;
+}
+if (!$date) {
+ my ($day, $month, $year) = (localtime)[3,4,5];
+ $date = sprintf ("%04d-%02d-%02d", $year+1900, $month+1, $day);
+}
+
+# Create a release string.
+my $release = "$package_name-$package_version";
+
+#print "input=$input\n";
+#print "name=$name\n";
+#print "section=$section\n";
+#print "date=$date\n";
+
+# Read the input.
+my $content = read_whole_file ($input);
+
+# Perform @inserts.
+foreach (@inserts) {
+ my @a = split /:/, $_, 2;
+ die "$progname: $input: no colon in parameter of --insert\n" unless @a >= 2;
+ my $replacement = read_whole_file ($a[0]);
+ my $oldcontent = $content;
+ $content =~ s/$a[1]/$replacement/ge;
+ die "$progname: $input: could not find pattern '$a[1]' in input file\n"
+ if $content eq $oldcontent;
+}
+
+# Turn external links to this man page into simple cross-section links.
+$content =~ s,\QL<$name($section)/\E,L</,g;
+
+# Perform @verbatims.
+foreach (@verbatims) {
+ my @a = split /:/, $_, 2;
+ die "$progname: $input: no colon in parameter of --verbatim\n" unless @a >= 2;
+ my $replacement = read_verbatim_file ($a[0]);
+ my $oldcontent = $content;
+ $content =~ s/$a[1]/$replacement/ge;
+ die "$progname: $input: could not find pattern '$a[1]' in input file\n"
+ if $content eq $oldcontent;
+}
+
+# There should be no =encoding line present in the content (we will add one).
+die "$progname: $input: =encoding must not be present in input\n"
+ if $content =~ /^=encoding/m;
+
+$content =~ s/^=(.*)/\n=encoding utf8\n\n=$1/m;
+
+# Verify sections present / not present.
+die "$progname: $input: missing NAME section\n"
+ if $content !~ /^=head1 NAME/m;
+die "$progname: $input: missing DESCRIPTION section\n"
+ if $content !~ /^=head1 DESCRIPTION/m;
+die "$progname: $input: missing AUTHOR or AUTHORS section\n"
+ unless $content =~ /^=head1 AUTHOR/m;
+die "$progname: $input: missing SEE ALSO section\n"
+ unless $content =~ /^=head1 SEE ALSO/m;
+die "$progname: $input: missing COPYRIGHT section\n"
+ unless $content =~ /^=head1 COPYRIGHT/m;
+die "$progname: $input: BUGS is now added automatically, do not add it to the POD file\n"
+ if $content =~ /^=head1 (REPORTING )?BUGS/m;
+die "$progname: $input: LICENSE is now added automatically, do not add it to the POD file\n"
+ if $content =~ /^=head1 LICENSE/m;
+
+# Check NAME section conformity.
+my @lines = split /\n/, $content;
+my @name;
+foreach (@lines) {
+ push @name, $_ if /^=head1 NAME/../^=head1 (?!NAME)/
+}
+shift @name; # remove =head1 and empty line
+shift @name; # from beginning and end
+pop @name;
+pop @name;
+die "$progname: $input: empty NAME section\n"
+ unless @name >= 1;
+die "$progname: $input: NAME doesn't start with nbdkit\n"
+ unless $name[0] =~ m/^nbdkit/;
+die "$progname: $input: NAME does not conform with Linux man pages standard\n"
+ if $name[0] !~ m/- [a-z]/ || $name[@name-1] =~ m/\.$/;
+
+# Add standard LICENSE section at the end.
+$content .=
+"
+
+=head1 LICENSE
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are
+met:
+
+=over 4
+
+=item *
+
+Redistributions of source code must retain the above copyright
+notice, this list of conditions and the following disclaimer.
+
+=item *
+
+Redistributions in binary form must reproduce the above copyright
+notice, this list of conditions and the following disclaimer in the
+documentation and/or other materials provided with the distribution.
+
+=item *
+
+Neither the name of Red Hat nor the names of its contributors may be
+used to endorse or promote products derived from this software without
+specific prior written permission.
+
+=back
+
+THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+SUCH DAMAGE.
+";
+
+# Check no over-long lines in the input. (As a special exception this
+# is permitted in verbatim sections or if the line contains a URL).
+@lines = split /\n/, $content;
+foreach (@lines) {
+ die "$progname: $input: line too long:\n$_\n"
+ if length $_ > 76 &&
+ substr ($_, 0, 1) ne ' ' &&
+ ! m/https?:/;
+}
+
+# Output man page.
+SUBMAN: {
+ package Podwrapper::Man;
+
+ use vars qw(@ISA $VERSION);
+ @ISA = qw(Pod::Man);
+ $VERSION = $package_version;
+
+ # Override the L<> method.
+ sub cmd_l
+ {
+ my ($self, $attrs, $text) = @_;
+ return $text;
+ }
+}
+
+if ($man) {
+ my $parser = Podwrapper::Man->new (
+ name => $name,
+ release => $release, section => $section,
+ center => "NBDKIT",
+ date => $date,
+ stderr => 1, utf8 => 1
+ );
+ my $output;
+ $parser->no_errata_section (1);
+ $parser->complain_stderr (1);
+ $parser->output_string (\$output);
+ $parser->parse_string_document ($content)
+ or die "$progname: could not parse input document";
+ open OUT, ">$man" or die "$progname: $man: $!";
+ print OUT $output or die "$progname: $man: $!";
+ close OUT or die "$progname: $man: $!";
+ if ($parser->any_errata_seen) {
+ unlink $man;
+ die "$input: errors or warnings in this POD file, see messages above\n"
+ }
+ #print "$progname: wrote $man\n";
+}
+
+# Output HTML.
+SUBHTML: {
+ # Subclass Pod::Simple::XHTML. See the documentation.
+ package Podwrapper::XHTML;
+
+ use vars qw(@ISA $VERSION);
+ @ISA = qw(Pod::Simple::XHTML);
+ $VERSION = $package_version;
+
+ sub is_an_nbdkit_page
+ {
+ local $_ = shift;
+
+ return 1 if /^nbdkit/;
+ return 0;
+ }
+
+ sub resolve_man_page_link
+ {
+ my $self = shift;
+ my $name = $_[0]; # eg. "nbdkit(1)", can be undef
+ my $anchor = $_[1]; # eg. "SYNOPSIS", can be undef
+ my $r = "";
+ if (defined $name) {
+ return $self->SUPER::resolve_man_page_link (@_)
+ unless is_an_nbdkit_page ($name);
+ $name =~ s/\((.*)\)$/.$1/;
+ $r .= "$name.html";
+ }
+ $r .= "#" . $self->idify ($anchor, 1) if defined $anchor;
+ $r;
+ }
+
+ # For some reason Pod::Simple::XHTML usually cannot find a
+ # title for the page. This defaults the HTML <title> field
+ # to the same as the man page name.
+ sub default_title { $name }
+}
+
+if ($html) {
+ mkdir "$abs_top_builddir/html";
+
+ my $parser = Podwrapper::XHTML->new;
+ my $output;
+ $parser->no_errata_section (1);
+ $parser->complain_stderr (1);
+ $parser->output_string (\$output);
+ # Added in Pod::Simple 3.16, 2011-03-14.
+ eval { $parser->html_charset ("UTF-8") };
+ $parser->html_css ("pod.css");
+ $parser->index (1);
+ $parser->parse_string_document ($content);
+
+ # Hack for Perl 5.16.
+ $output =~ s{/>pod.css<}{/>\n<};
+
+ open OUT, ">$html" or die "$progname: $html: $!";
+ print OUT $output or die "$progname: $html: $!";
+ close OUT or die "$progname: $html: $!";
+ if ($parser->any_errata_seen) {
+ unlink $html;
+ die "$input: errors or warnings in this POD file, see messages above\n"
+ }
+ #print "$progname: wrote $html\n";
+}
+
+# Output text.
+if ($text) {
+ my $parser = Pod::Simple::Text->new;
+ my $output;
+ $parser->no_errata_section (1);
+ $parser->complain_stderr (1);
+ $parser->output_string (\$output);
+ $parser->parse_string_document ($content);
+ open OUT, ">$text" or die "$progname: $text: $!";
+ binmode OUT, ":utf8";
+ print OUT $output or die "$progname: $text: $!";
+ close OUT or die "$progname: $text: $!";
+ if ($parser->any_errata_seen) {
+ unlink $text;
+ die "$input: errors or warnings in this POD file, see messages above\n"
+ }
+ #print "$progname: wrote $text\n";
+}
+
+sub read_whole_file
+{
+ my $input = shift;
+ local $/ = undef;
+
+ open FILE, "<:encoding(UTF-8)", $input or die "$progname: $input: $!";
+ $_ = <FILE>;
+ close FILE;
+ $_;
+}
+
+sub read_verbatim_file
+{
+ my $input = shift;
+ my $r = "";
+
+ open FILE, "<:encoding(UTF-8)", $input or die "$progname: $input: $!";
+ while (<FILE>) {
+ $r .= " $_";
+ }
+ close FILE;
+ $r;
+}
+
+=head1 SEE ALSO
+
+L<perlpod(1)>,
+L<Pod::Simple(3pm)>.
+
+=head1 AUTHOR
+
+Richard W.M. Jones.
+
+=head1 COPYRIGHT
+
+Copyright (C) 2012-2018 Red Hat Inc.
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# You can use this to change the ordering of files within patches to
+# make them easier to follow.
+#
+# Use:
+# git diff -O scripts/git.orderfile
+#
+# Or make the change permanently by doing:
+# git config diff.orderFile scripts/git.orderfile
+
+# Documentation.
+docs/*
+*.pod
+
+# Build files.
+configure.ac
+Makefile.am
+
+# Header files.
+*.h
+
+# Source files.
+*.c
--- /dev/null
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = nbdkit.syms
+
+sbin_PROGRAMS = nbdkit
+
+nbdkit_SOURCES = \
+ background.c \
+ captive.c \
+ cleanup.c \
+ connections.c \
+ crypto.c \
+ debug.c \
+ extents.c \
+ filters.c \
+ internal.h \
+ locks.c \
+ log.c \
+ log-stderr.c \
+ log-syslog.c \
+ main.c \
+ options.h \
+ plugins.c \
+ protocol.c \
+ protocol-handshake.c \
+ protocol-handshake-oldstyle.c \
+ protocol-handshake-newstyle.c \
+ quit.c \
+ signals.c \
+ socket-activation.c \
+ sockets.c \
+ threadlocal.c \
+ usergroup.c \
+ utils.c \
+ $(top_srcdir)/include/nbdkit-plugin.h \
+ $(top_srcdir)/include/nbdkit-filter.h
+
+nbdkit_CPPFLAGS = \
+ -Dbindir=\"$(bindir)\" \
+ -Dlibdir=\"$(libdir)\" \
+ -Dmandir=\"$(mandir)\" \
+ -Dplugindir=\"$(plugindir)\" \
+ -Dfilterdir=\"$(filterdir)\" \
+ -Dsbindir=\"$(sbindir)\" \
+ -Dsysconfdir=\"$(sysconfdir)\" \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include \
+ -I$(top_srcdir)/common/protocol \
+ -I$(top_srcdir)/common/utils
+nbdkit_CFLAGS = \
+ $(PTHREAD_CFLAGS) \
+ $(WARNINGS_CFLAGS) \
+ $(GNUTLS_CFLAGS) \
+ $(LIBSELINUX_CFLAGS) \
+ $(VALGRIND_CFLAGS)
+nbdkit_LDADD = \
+ $(GNUTLS_LIBS) \
+ $(LIBSELINUX_LIBS) \
+ $(DL_LIBS) \
+ $(top_builddir)/common/protocol/libprotocol.la \
+ $(top_builddir)/common/utils/libutils.la
+nbdkit_LDFLAGS = \
+ $(PTHREAD_LIBS) \
+ $(DL_LDFLAGS)
+if USE_LINKER_SCRIPT_FOR_SERVER
+nbdkit_LDFLAGS += -Wl,--version-script=$(srcdir)/nbdkit.syms
+endif
+
+# synopsis.c is generated from docs/synopsis.txt where it is also
+# used to generate the man page. It is included in main.c.
+
+BUILT_SOURCES = synopsis.c
+EXTRA_DIST += synopsis.c
+nbdkit_DEPENDENCIES = synopsis.c
+CLEANFILES += synopsis.c
+main.c: synopsis.c
+synopsis.c: $(top_srcdir)/docs/synopsis.txt
+ rm -f $@ $@-t
+ $(SED) -e 's/\(.*\)/"\1\\n"/g' $< > $@-t
+ mv $@-t $@
+
+# pkg-config / pkgconf
+
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = nbdkit.pc
+
+# Unit testing
+
+TESTS = test-utils
+
+check_PROGRAMS = test-utils
+
+test_utils_SOURCES = \
+ test-utils.c \
+ utils.c \
+ cleanup.c \
+ extents.c
+test_utils_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include
+test_utils_CFLAGS = $(WARNINGS_CFLAGS) $(VALGRIND_CFLAGS)
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+
+VPATH = @srcdir@
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+ mgn= red= grn= lgn= blu= brg= std=; \
+ am__color_tests=no
+am__tty_colors = { \
+ $(am__tty_colors_dummy); \
+ if test "X$(AM_COLOR_TESTS)" = Xno; then \
+ am__color_tests=no; \
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+}
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+EXEEXT = @EXEEXT@
+EXT2FS_CFLAGS = @EXT2FS_CFLAGS@
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+GUESTFISH = @GUESTFISH@
+INSTALL = @INSTALL@
+INSTALL_DATA = @INSTALL_DATA@
+INSTALL_PROGRAM = @INSTALL_PROGRAM@
+INSTALL_SCRIPT = @INSTALL_SCRIPT@
+INSTALL_STRIP_PROGRAM = @INSTALL_STRIP_PROGRAM@
+ISOPROG = @ISOPROG@
+LD = @LD@
+LDFLAGS = @LDFLAGS@
+LIBGUESTFS_CFLAGS = @LIBGUESTFS_CFLAGS@
+LIBGUESTFS_LIBS = @LIBGUESTFS_LIBS@
+LIBLZMA_CFLAGS = @LIBLZMA_CFLAGS@
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+LIBSELINUX_LIBS = @LIBSELINUX_LIBS@
+LIBTOOL = @LIBTOOL@
+LIBVIRT_CFLAGS = @LIBVIRT_CFLAGS@
+LIBVIRT_LIBS = @LIBVIRT_LIBS@
+LIPO = @LIPO@
+LN_S = @LN_S@
+LTLIBOBJS = @LTLIBOBJS@
+LT_SYS_LIBRARY_PATH = @LT_SYS_LIBRARY_PATH@
+LUA_CFLAGS = @LUA_CFLAGS@
+LUA_LIBS = @LUA_LIBS@
+MAKEINFO = @MAKEINFO@
+MANIFEST_TOOL = @MANIFEST_TOOL@
+MKDIR_P = @MKDIR_P@
+MKISOFS = @MKISOFS@
+NM = @NM@
+NMEDIT = @NMEDIT@
+OBJDUMP = @OBJDUMP@
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+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
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+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
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+PERL_CFLAGS = @PERL_CFLAGS@
+PERL_LDOPTS = @PERL_LDOPTS@
+PKG_CONFIG = @PKG_CONFIG@
+PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@
+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
+PODWRAPPER = @PODWRAPPER@
+PTHREAD_CC = @PTHREAD_CC@
+PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
+PTHREAD_LIBS = @PTHREAD_LIBS@
+PYTHON = @PYTHON@
+PYTHON_CFLAGS = @PYTHON_CFLAGS@
+PYTHON_LDFLAGS = @PYTHON_LDFLAGS@
+PYTHON_LIBS = @PYTHON_LIBS@
+PYTHON_VERSION = @PYTHON_VERSION@
+RANLIB = @RANLIB@
+RUBY = @RUBY@
+RUBY_CFLAGS = @RUBY_CFLAGS@
+RUBY_LIBS = @RUBY_LIBS@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHELL = @SHELL@
+SSH_CFLAGS = @SSH_CFLAGS@
+SSH_LIBS = @SSH_LIBS@
+STRIP = @STRIP@
+TCL_CFLAGS = @TCL_CFLAGS@
+TCL_LIBS = @TCL_LIBS@
+VALGRIND = @VALGRIND@
+VALGRIND_CFLAGS = @VALGRIND_CFLAGS@
+VALGRIND_LIBS = @VALGRIND_LIBS@
+VERSION = @VERSION@
+WARNINGS_CFLAGS = @WARNINGS_CFLAGS@
+ZLIB_CFLAGS = @ZLIB_CFLAGS@
+ZLIB_LIBS = @ZLIB_LIBS@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
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+abs_top_srcdir = @abs_top_srcdir@
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+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
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+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+builddir = @builddir@
+datadir = @datadir@
+datarootdir = @datarootdir@
+docdir = @docdir@
+dvidir = @dvidir@
+exec_prefix = @exec_prefix@
+filters = @filters@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+lang_plugins = @lang_plugins@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localedir = @localedir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+non_lang_plugins = @non_lang_plugins@
+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
+plugins = @plugins@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+plugindir = $(libdir)/nbdkit/plugins
+filterdir = $(libdir)/nbdkit/filters
+CLEANFILES = *~ *.cmi *.cmx *.cmxa *.so synopsis.c
+EXTRA_DIST = nbdkit.syms synopsis.c
+nbdkit_SOURCES = \
+ background.c \
+ captive.c \
+ cleanup.c \
+ connections.c \
+ crypto.c \
+ debug.c \
+ extents.c \
+ filters.c \
+ internal.h \
+ locks.c \
+ log.c \
+ log-stderr.c \
+ log-syslog.c \
+ main.c \
+ options.h \
+ plugins.c \
+ protocol.c \
+ protocol-handshake.c \
+ protocol-handshake-oldstyle.c \
+ protocol-handshake-newstyle.c \
+ quit.c \
+ signals.c \
+ socket-activation.c \
+ sockets.c \
+ threadlocal.c \
+ usergroup.c \
+ utils.c \
+ $(top_srcdir)/include/nbdkit-plugin.h \
+ $(top_srcdir)/include/nbdkit-filter.h
+
+nbdkit_CPPFLAGS = \
+ -Dbindir=\"$(bindir)\" \
+ -Dlibdir=\"$(libdir)\" \
+ -Dmandir=\"$(mandir)\" \
+ -Dplugindir=\"$(plugindir)\" \
+ -Dfilterdir=\"$(filterdir)\" \
+ -Dsbindir=\"$(sbindir)\" \
+ -Dsysconfdir=\"$(sysconfdir)\" \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include \
+ -I$(top_srcdir)/common/protocol \
+ -I$(top_srcdir)/common/utils
+
+nbdkit_CFLAGS = \
+ $(PTHREAD_CFLAGS) \
+ $(WARNINGS_CFLAGS) \
+ $(GNUTLS_CFLAGS) \
+ $(LIBSELINUX_CFLAGS) \
+ $(VALGRIND_CFLAGS)
+
+nbdkit_LDADD = \
+ $(GNUTLS_LIBS) \
+ $(LIBSELINUX_LIBS) \
+ $(DL_LIBS) \
+ $(top_builddir)/common/protocol/libprotocol.la \
+ $(top_builddir)/common/utils/libutils.la
+
+nbdkit_LDFLAGS = $(PTHREAD_LIBS) $(DL_LDFLAGS) $(am__append_1)
+
+# synopsis.c is generated from docs/synopsis.txt where it is also
+# used to generate the man page. It is included in main.c.
+BUILT_SOURCES = synopsis.c
+nbdkit_DEPENDENCIES = synopsis.c
+
+# pkg-config / pkgconf
+pkgconfigdir = $(libdir)/pkgconfig
+pkgconfig_DATA = nbdkit.pc
+test_utils_SOURCES = \
+ test-utils.c \
+ utils.c \
+ cleanup.c \
+ extents.c
+
+test_utils_CPPFLAGS = \
+ -I$(top_srcdir)/include \
+ -I$(top_srcdir)/common/include
+
+test_utils_CFLAGS = $(WARNINGS_CFLAGS) $(VALGRIND_CFLAGS)
+all: $(BUILT_SOURCES)
+ $(MAKE) $(AM_MAKEFLAGS) all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .lo .log .o .obj .test .test$(EXEEXT) .trs
+$(srcdir)/Makefile.in: $(srcdir)/Makefile.am $(top_srcdir)/common-rules.mk $(am__configure_deps)
+ @for dep in $?; do \
+ case '$(am__configure_deps)' in \
+ *$$dep*) \
+ ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+ && { if test -f $@; then exit 0; else break; fi; }; \
+ exit 1;; \
+ esac; \
+ done; \
+ echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign server/Makefile'; \
+ $(am__cd) $(top_srcdir) && \
+ $(AUTOMAKE) --foreign server/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+ @case '$?' in \
+ *config.status*) \
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+ *) \
+ echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+ cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
+ esac;
+$(top_srcdir)/common-rules.mk $(am__empty):
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure: $(am__configure_deps)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4): $(am__aclocal_m4_deps)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+nbdkit.pc: $(top_builddir)/config.status $(srcdir)/nbdkit.pc.in
+ cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
+
+clean-checkPROGRAMS:
+ @list='$(check_PROGRAMS)'; test -n "$$list" || exit 0; \
+ echo " rm -f" $$list; \
+ rm -f $$list || exit $$?; \
+ test -n "$(EXEEXT)" || exit 0; \
+ list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+ echo " rm -f" $$list; \
+ rm -f $$list
+install-sbinPROGRAMS: $(sbin_PROGRAMS)
+ @$(NORMAL_INSTALL)
+ @list='$(sbin_PROGRAMS)'; test -n "$(sbindir)" || list=; \
+ if test -n "$$list"; then \
+ echo " $(MKDIR_P) '$(DESTDIR)$(sbindir)'"; \
+ $(MKDIR_P) "$(DESTDIR)$(sbindir)" || exit 1; \
+ fi; \
+ for p in $$list; do echo "$$p $$p"; done | \
+ sed 's/$(EXEEXT)$$//' | \
+ while read p p1; do if test -f $$p \
+ || test -f $$p1 \
+ ; then echo "$$p"; echo "$$p"; else :; fi; \
+ done | \
+ sed -e 'p;s,.*/,,;n;h' \
+ -e 's|.*|.|' \
+ -e 'p;x;s,.*/,,;s/$(EXEEXT)$$//;$(transform);s/$$/$(EXEEXT)/' | \
+ sed 'N;N;N;s,\n, ,g' | \
+ $(AWK) 'BEGIN { files["."] = ""; dirs["."] = 1 } \
+ { d=$$3; if (dirs[d] != 1) { print "d", d; dirs[d] = 1 } \
+ if ($$2 == $$4) files[d] = files[d] " " $$1; \
+ else { print "f", $$3 "/" $$4, $$1; } } \
+ END { for (d in files) print "f", d, files[d] }' | \
+ while read type dir files; do \
+ if test "$$dir" = .; then dir=; else dir=/$$dir; fi; \
+ test -z "$$files" || { \
+ echo " $(INSTALL_PROGRAM_ENV) $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL_PROGRAM) $$files '$(DESTDIR)$(sbindir)$$dir'"; \
+ $(INSTALL_PROGRAM_ENV) $(LIBTOOL) $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=install $(INSTALL_PROGRAM) $$files "$(DESTDIR)$(sbindir)$$dir" || exit $$?; \
+ } \
+ ; done
+
+uninstall-sbinPROGRAMS:
+ @$(NORMAL_UNINSTALL)
+ @list='$(sbin_PROGRAMS)'; test -n "$(sbindir)" || list=; \
+ files=`for p in $$list; do echo "$$p"; done | \
+ sed -e 'h;s,^.*/,,;s/$(EXEEXT)$$//;$(transform)' \
+ -e 's/$$/$(EXEEXT)/' \
+ `; \
+ test -n "$$list" || exit 0; \
+ echo " ( cd '$(DESTDIR)$(sbindir)' && rm -f" $$files ")"; \
+ cd "$(DESTDIR)$(sbindir)" && rm -f $$files
+
+clean-sbinPROGRAMS:
+ @list='$(sbin_PROGRAMS)'; test -n "$$list" || exit 0; \
+ echo " rm -f" $$list; \
+ rm -f $$list || exit $$?; \
+ test -n "$(EXEEXT)" || exit 0; \
+ list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+ echo " rm -f" $$list; \
+ rm -f $$list
+
+nbdkit$(EXEEXT): $(nbdkit_OBJECTS) $(nbdkit_DEPENDENCIES) $(EXTRA_nbdkit_DEPENDENCIES)
+ @rm -f nbdkit$(EXEEXT)
+ $(AM_V_CCLD)$(nbdkit_LINK) $(nbdkit_OBJECTS) $(nbdkit_LDADD) $(LIBS)
+
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+distclean-am: clean-am distclean-compile distclean-generic \
+ distclean-tags
+
+dvi: dvi-am
+
+dvi-am:
+
+html: html-am
+
+html-am:
+
+info: info-am
+
+info-am:
+
+install-data-am: install-pkgconfigDATA
+
+install-dvi: install-dvi-am
+
+install-dvi-am:
+
+install-exec-am: install-sbinPROGRAMS
+
+install-html: install-html-am
+
+install-html-am:
+
+install-info: install-info-am
+
+install-info-am:
+
+install-man:
+
+install-pdf: install-pdf-am
+
+install-pdf-am:
+
+install-ps: install-ps-am
+
+install-ps-am:
+
+installcheck-am:
+
+maintainer-clean: maintainer-clean-am
+ -rm -f ./$(DEPDIR)/nbdkit-background.Po
+ -rm -f ./$(DEPDIR)/nbdkit-captive.Po
+ -rm -f ./$(DEPDIR)/nbdkit-cleanup.Po
+ -rm -f ./$(DEPDIR)/nbdkit-connections.Po
+ -rm -f ./$(DEPDIR)/nbdkit-crypto.Po
+ -rm -f ./$(DEPDIR)/nbdkit-debug.Po
+ -rm -f ./$(DEPDIR)/nbdkit-extents.Po
+ -rm -f ./$(DEPDIR)/nbdkit-filters.Po
+ -rm -f ./$(DEPDIR)/nbdkit-locks.Po
+ -rm -f ./$(DEPDIR)/nbdkit-log-stderr.Po
+ -rm -f ./$(DEPDIR)/nbdkit-log-syslog.Po
+ -rm -f ./$(DEPDIR)/nbdkit-log.Po
+ -rm -f ./$(DEPDIR)/nbdkit-main.Po
+ -rm -f ./$(DEPDIR)/nbdkit-plugins.Po
+ -rm -f ./$(DEPDIR)/nbdkit-protocol-handshake-newstyle.Po
+ -rm -f ./$(DEPDIR)/nbdkit-protocol-handshake-oldstyle.Po
+ -rm -f ./$(DEPDIR)/nbdkit-protocol-handshake.Po
+ -rm -f ./$(DEPDIR)/nbdkit-protocol.Po
+ -rm -f ./$(DEPDIR)/nbdkit-quit.Po
+ -rm -f ./$(DEPDIR)/nbdkit-signals.Po
+ -rm -f ./$(DEPDIR)/nbdkit-socket-activation.Po
+ -rm -f ./$(DEPDIR)/nbdkit-sockets.Po
+ -rm -f ./$(DEPDIR)/nbdkit-threadlocal.Po
+ -rm -f ./$(DEPDIR)/nbdkit-usergroup.Po
+ -rm -f ./$(DEPDIR)/nbdkit-utils.Po
+ -rm -f ./$(DEPDIR)/test_utils-cleanup.Po
+ -rm -f ./$(DEPDIR)/test_utils-extents.Po
+ -rm -f ./$(DEPDIR)/test_utils-test-utils.Po
+ -rm -f ./$(DEPDIR)/test_utils-utils.Po
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am: uninstall-pkgconfigDATA uninstall-sbinPROGRAMS
+
+.MAKE: all check check-am install install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-TESTS \
+ check-am clean clean-checkPROGRAMS clean-generic clean-libtool \
+ clean-sbinPROGRAMS cscopelist-am ctags ctags-am distclean \
+ distclean-compile distclean-generic distclean-libtool \
+ distclean-tags distdir dvi dvi-am html html-am info info-am \
+ install install-am install-data install-data-am install-dvi \
+ install-dvi-am install-exec install-exec-am install-html \
+ install-html-am install-info install-info-am install-man \
+ install-pdf install-pdf-am install-pkgconfigDATA install-ps \
+ install-ps-am install-sbinPROGRAMS install-strip installcheck \
+ installcheck-am installdirs maintainer-clean \
+ maintainer-clean-generic mostlyclean mostlyclean-compile \
+ mostlyclean-generic mostlyclean-libtool pdf pdf-am ps ps-am \
+ recheck tags tags-am uninstall uninstall-am \
+ uninstall-pkgconfigDATA uninstall-sbinPROGRAMS
+
+.PRECIOUS: Makefile
+
+main.c: synopsis.c
+synopsis.c: $(top_srcdir)/docs/synopsis.txt
+ rm -f $@ $@-t
+ $(SED) -e 's/\(.*\)/"\1\\n"/g' $< > $@-t
+ mv $@-t $@
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+
+#include "internal.h"
+
+/* True if we forked into the background (used to control log messages). */
+bool forked_into_background;
+
+/* Run as a background process. If foreground is set (ie. -f or
+ * equivalent) then this does nothing. Otherwise it forks into the
+ * background and sets forked_into_background.
+ */
+void
+fork_into_background (void)
+{
+ pid_t pid;
+
+ if (foreground)
+ return;
+
+ pid = fork ();
+ if (pid == -1) {
+ perror ("fork");
+ exit (EXIT_FAILURE);
+ }
+
+ if (pid > 0) /* Parent process exits. */
+ exit (EXIT_SUCCESS);
+
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-result"
+ chdir ("/");
+#pragma GCC diagnostic pop
+
+ /* Close stdin/stdout and redirect to /dev/null. */
+ close (0);
+ close (1);
+ open ("/dev/null", O_RDONLY);
+ open ("/dev/null", O_WRONLY);
+
+ /* If not verbose, set stderr to the same as stdout as well. */
+ if (!verbose)
+ dup2 (1, 2);
+
+ forked_into_background = true;
+ debug ("forked into background (new pid = %d)", getpid ());
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <signal.h>
+
+#include "utils.h"
+
+#include "internal.h"
+
+/* Handle the --run option. If run is NULL, does nothing. If run is
+ * not NULL then run nbdkit as a captive subprocess of the command.
+ */
+void
+run_command (void)
+{
+ FILE *fp;
+ char *cmd = NULL;
+ size_t len = 0;
+ int r;
+ pid_t pid;
+
+ if (!run)
+ return;
+
+ fp = open_memstream (&cmd, &len);
+ if (fp == NULL) {
+ perror ("open_memstream");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Construct $nbd "URL". Unfortunately guestfish and qemu take
+ * different syntax, so try to guess which one we need.
+ */
+ fprintf (fp, "nbd=");
+ if (strstr (run, "guestfish")) {
+ if (port) {
+ fprintf (fp, "nbd://localhost:");
+ shell_quote (port, fp);
+ }
+ else if (unixsocket) {
+ fprintf (fp, "nbd://\\?socket=");
+ shell_quote (unixsocket, fp);
+ }
+ else
+ abort ();
+ }
+ else /* qemu */ {
+ if (port) {
+ fprintf (fp, "nbd:localhost:");
+ shell_quote (port, fp);
+ }
+ else if (unixsocket) {
+ fprintf (fp, "nbd:unix:");
+ shell_quote (unixsocket, fp);
+ }
+ else
+ abort ();
+ }
+ fprintf (fp, "\n");
+
+ /* Construct $port and $unixsocket. */
+ fprintf (fp, "port=");
+ if (port)
+ shell_quote (port, fp);
+ fprintf (fp, "\n");
+ fprintf (fp, "unixsocket=");
+ if (unixsocket)
+ shell_quote (unixsocket, fp);
+ fprintf (fp, "\n");
+
+ /* Add the --run command. Note we don't have to quote this. */
+ fprintf (fp, "%s", run);
+
+ if (fclose (fp) == EOF) {
+ perror ("memstream failed");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Fork. Captive nbdkit runs as the child process. */
+ pid = fork ();
+ if (pid == -1) {
+ perror ("fork");
+ exit (EXIT_FAILURE);
+ }
+
+ if (pid > 0) { /* Parent process is the run command. */
+ r = system (cmd);
+ if (WIFEXITED (r))
+ r = WEXITSTATUS (r);
+ else if (WIFSIGNALED (r)) {
+ fprintf (stderr, "%s: external command was killed by signal %d\n",
+ program_name, WTERMSIG (r));
+ r = 1;
+ }
+ else if (WIFSTOPPED (r)) {
+ fprintf (stderr, "%s: external command was stopped by signal %d\n",
+ program_name, WSTOPSIG (r));
+ r = 1;
+ }
+
+ kill (pid, SIGTERM); /* Kill captive nbdkit. */
+
+ _exit (r);
+ }
+
+ free (cmd);
+
+ debug ("forked into background (new pid = %d)", getpid ());
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+
+#include "internal.h"
+
+void
+cleanup_free (void *ptr)
+{
+ free (* (void **) ptr);
+}
+
+void
+cleanup_extents_free (void *ptr)
+{
+ nbdkit_extents_free (* (void **) ptr);
+}
+
+void
+cleanup_unlock (pthread_mutex_t **ptr)
+{
+ pthread_mutex_unlock (*ptr);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "internal.h"
+
+/* Default number of parallel requests. */
+#define DEFAULT_PARALLEL_REQUESTS 16
+
+static struct connection *new_connection (int sockin, int sockout,
+ int nworkers);
+static void free_connection (struct connection *conn);
+
+/* Don't call these raw socket functions directly. Use conn->recv etc. */
+static int raw_recv (struct connection *, void *buf, size_t len);
+static int raw_send (struct connection *, const void *buf, size_t len);
+static void raw_close (struct connection *);
+
+int
+connection_set_handle (struct connection *conn, size_t i, void *handle)
+{
+ size_t j;
+
+ if (i < conn->nr_handles)
+ conn->handles[i] = handle;
+ else {
+ j = conn->nr_handles;
+ conn->nr_handles = i+1;
+ conn->handles = realloc (conn->handles,
+ conn->nr_handles * sizeof (void *));
+ if (conn->handles == NULL) {
+ perror ("realloc");
+ conn->nr_handles = 0;
+ return -1;
+ }
+ for (; j < i; ++j)
+ conn->handles[j] = NULL;
+ conn->handles[i] = handle;
+ }
+ return 0;
+}
+
+void *
+connection_get_handle (struct connection *conn, size_t i)
+{
+ if (i < conn->nr_handles)
+ return conn->handles[i];
+ else
+ return NULL;
+}
+
+int
+connection_get_status (struct connection *conn)
+{
+ int r;
+
+ if (conn->nworkers)
+ pthread_mutex_lock (&conn->status_lock);
+ r = conn->status;
+ if (conn->nworkers)
+ pthread_mutex_unlock (&conn->status_lock);
+ return r;
+}
+
+/* Update the status if the new value is lower than the existing value.
+ * For convenience, return the incoming value.
+ */
+int
+connection_set_status (struct connection *conn, int value)
+{
+ if (conn->nworkers)
+ pthread_mutex_lock (&conn->status_lock);
+ if (value < conn->status)
+ conn->status = value;
+ if (conn->nworkers)
+ pthread_mutex_unlock (&conn->status_lock);
+ return value;
+}
+
+struct worker_data {
+ struct connection *conn;
+ char *name;
+};
+
+static void *
+connection_worker (void *data)
+{
+ struct worker_data *worker = data;
+ struct connection *conn = worker->conn;
+ char *name = worker->name;
+
+ debug ("starting worker thread %s", name);
+ threadlocal_new_server_thread ();
+ threadlocal_set_name (name);
+ free (worker);
+
+ while (!quit && connection_get_status (conn) > 0)
+ protocol_recv_request_send_reply (conn);
+ debug ("exiting worker thread %s", threadlocal_get_name ());
+ free (name);
+ return NULL;
+}
+
+static int
+_handle_single_connection (int sockin, int sockout)
+{
+ const char *plugin_name;
+ int ret = -1, r;
+ struct connection *conn;
+ int nworkers = threads ? threads : DEFAULT_PARALLEL_REQUESTS;
+ pthread_t *workers = NULL;
+
+ if (backend->thread_model (backend) < NBDKIT_THREAD_MODEL_PARALLEL ||
+ nworkers == 1)
+ nworkers = 0;
+ conn = new_connection (sockin, sockout, nworkers);
+ if (!conn)
+ goto done;
+
+ lock_request (conn);
+ r = backend->open (backend, conn, readonly);
+ unlock_request (conn);
+ if (r == -1)
+ goto done;
+
+ /* NB: because of an asynchronous exit backend can be set to NULL at
+ * just about any time.
+ */
+ if (backend)
+ plugin_name = backend->plugin_name (backend);
+ else
+ plugin_name = "(unknown)";
+ threadlocal_set_name (plugin_name);
+
+ /* Prepare (for filters), called just after open. */
+ lock_request (conn);
+ if (backend)
+ r = backend->prepare (backend, conn);
+ else
+ r = 0;
+ unlock_request (conn);
+ if (r == -1)
+ goto done;
+
+ /* Handshake. */
+ if (protocol_handshake (conn) == -1)
+ goto done;
+
+ if (!nworkers) {
+ /* No need for a separate thread. */
+ debug ("handshake complete, processing requests serially");
+ while (!quit && connection_get_status (conn) > 0)
+ protocol_recv_request_send_reply (conn);
+ }
+ else {
+ /* Create thread pool to process requests. */
+ debug ("handshake complete, processing requests with %d threads",
+ nworkers);
+ workers = calloc (nworkers, sizeof *workers);
+ if (!workers) {
+ perror ("malloc");
+ goto done;
+ }
+
+ for (nworkers = 0; nworkers < conn->nworkers; nworkers++) {
+ struct worker_data *worker = malloc (sizeof *worker);
+ int err;
+
+ if (!worker) {
+ perror ("malloc");
+ connection_set_status (conn, -1);
+ goto wait;
+ }
+ if (asprintf (&worker->name, "%s.%d", plugin_name, nworkers) < 0) {
+ perror ("asprintf");
+ connection_set_status (conn, -1);
+ free (worker);
+ goto wait;
+ }
+ worker->conn = conn;
+ err = pthread_create (&workers[nworkers], NULL, connection_worker,
+ worker);
+ if (err) {
+ errno = err;
+ perror ("pthread_create");
+ connection_set_status (conn, -1);
+ free (worker);
+ goto wait;
+ }
+ }
+
+ wait:
+ while (nworkers)
+ pthread_join (workers[--nworkers], NULL);
+ free (workers);
+ }
+
+ /* Finalize (for filters), called just before close. */
+ lock_request (conn);
+ if (backend)
+ r = backend->finalize (backend, conn);
+ else
+ r = 0;
+ unlock_request (conn);
+ if (r == -1)
+ goto done;
+
+ ret = connection_get_status (conn);
+ done:
+ free_connection (conn);
+ return ret;
+}
+
+int
+handle_single_connection (int sockin, int sockout)
+{
+ int r;
+
+ lock_connection ();
+ r = _handle_single_connection (sockin, sockout);
+ unlock_connection ();
+
+ return r;
+}
+
+static struct connection *
+new_connection (int sockin, int sockout, int nworkers)
+{
+ struct connection *conn;
+
+ conn = calloc (1, sizeof *conn);
+ if (conn == NULL) {
+ perror ("malloc");
+ return NULL;
+ }
+
+ conn->status = 1;
+ conn->nworkers = nworkers;
+ conn->sockin = sockin;
+ conn->sockout = sockout;
+ pthread_mutex_init (&conn->request_lock, NULL);
+ pthread_mutex_init (&conn->read_lock, NULL);
+ pthread_mutex_init (&conn->write_lock, NULL);
+ pthread_mutex_init (&conn->status_lock, NULL);
+
+ conn->recv = raw_recv;
+ conn->send = raw_send;
+ conn->close = raw_close;
+
+ return conn;
+}
+
+static void
+free_connection (struct connection *conn)
+{
+ if (!conn)
+ return;
+
+ conn->close (conn);
+
+ /* Don't call the plugin again if quit has been set because the main
+ * thread will be in the process of unloading it. The plugin.unload
+ * callback should always be called.
+ */
+ if (!quit) {
+ if (conn->nr_handles > 0 && conn->handles[0]) {
+ lock_request (conn);
+ backend->close (backend, conn);
+ unlock_request (conn);
+ }
+ }
+
+ pthread_mutex_destroy (&conn->request_lock);
+ pthread_mutex_destroy (&conn->read_lock);
+ pthread_mutex_destroy (&conn->write_lock);
+ pthread_mutex_destroy (&conn->status_lock);
+
+ free (conn->handles);
+ free (conn);
+}
+
+/* Write buffer to conn->sockout and either succeed completely
+ * (returns 0) or fail (returns -1).
+ */
+static int
+raw_send (struct connection *conn, const void *vbuf, size_t len)
+{
+ int sock = conn->sockout;
+ const char *buf = vbuf;
+ ssize_t r;
+
+ while (len > 0) {
+ r = write (sock, buf, len);
+ if (r == -1) {
+ if (errno == EINTR || errno == EAGAIN)
+ continue;
+ return -1;
+ }
+ buf += r;
+ len -= r;
+ }
+
+ return 0;
+}
+
+/* Read buffer from conn->sockin and either succeed completely
+ * (returns > 0), read an EOF (returns 0), or fail (returns -1).
+ */
+static int
+raw_recv (struct connection *conn, void *vbuf, size_t len)
+{
+ int sock = conn->sockin;
+ char *buf = vbuf;
+ ssize_t r;
+ bool first_read = true;
+
+ while (len > 0) {
+ r = read (sock, buf, len);
+ if (r == -1) {
+ if (errno == EINTR || errno == EAGAIN)
+ continue;
+ return -1;
+ }
+ if (r == 0) {
+ if (first_read)
+ return 0;
+ /* Partial record read. This is an error. */
+ errno = EBADMSG;
+ return -1;
+ }
+ first_read = false;
+ buf += r;
+ len -= r;
+ }
+
+ return 1;
+}
+
+/* There's no place in the NBD protocol to send back errors from
+ * close, so this function ignores errors.
+ */
+static void
+raw_close (struct connection *conn)
+{
+ if (conn->sockin >= 0)
+ close (conn->sockin);
+ if (conn->sockout >= 0 && conn->sockin != conn->sockout)
+ close (conn->sockout);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <limits.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <assert.h>
+
+#include "internal.h"
+
+#ifdef HAVE_GNUTLS
+
+#include <gnutls/gnutls.h>
+
+static int crypto_auth;
+#define CRYPTO_AUTH_CERTIFICATES 1
+#define CRYPTO_AUTH_PSK 2
+
+static gnutls_certificate_credentials_t x509_creds;
+static gnutls_psk_server_credentials_t psk_creds;
+
+static void print_gnutls_error (int err, const char *fs, ...)
+ __attribute__((format (printf, 2, 3)));
+
+static void
+print_gnutls_error (int err, const char *fs, ...)
+{
+ va_list args;
+
+ fprintf (stderr, "%s: GnuTLS error: ", program_name);
+
+ va_start (args, fs);
+ vfprintf (stderr, fs, args);
+ va_end (args);
+
+ fprintf (stderr, ": %s\n", gnutls_strerror (err));
+}
+
+/* Try to load certificates from 'path'. Returns true if successful.
+ * If it's not a certicate directory it returns false. Exits on
+ * other errors.
+ */
+static int
+load_certificates (const char *path)
+{
+ CLEANUP_FREE char *ca_cert_filename = NULL;
+ CLEANUP_FREE char *server_cert_filename = NULL;
+ CLEANUP_FREE char *server_key_filename = NULL;
+ CLEANUP_FREE char *ca_crl_filename = NULL;
+ int err;
+
+ if (asprintf (&ca_cert_filename, "%s/ca-cert.pem", path) == -1) {
+ perror ("asprintf");
+ exit (EXIT_FAILURE);
+ }
+ if (asprintf (&server_cert_filename, "%s/server-cert.pem", path) == -1) {
+ perror ("asprintf");
+ exit (EXIT_FAILURE);
+ }
+ if (asprintf (&server_key_filename, "%s/server-key.pem", path) == -1) {
+ perror ("asprintf");
+ exit (EXIT_FAILURE);
+ }
+ if (asprintf (&ca_crl_filename, "%s/ca-crl.pem", path) == -1) {
+ perror ("asprintf");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Our test for a certificate directory is that ca-cert.pem,
+ * server-cert.pem and server-key.pem must all exist in the path.
+ */
+ if (access (ca_cert_filename, R_OK) == -1)
+ return 0;
+ if (access (server_cert_filename, R_OK) == -1)
+ return 0;
+ if (access (server_key_filename, R_OK) == -1)
+ return 0;
+
+ /* Any problem past here is a hard error. */
+
+ err = gnutls_certificate_allocate_credentials (&x509_creds);
+ if (err < 0) {
+ print_gnutls_error (err, "allocating credentials");
+ exit (EXIT_FAILURE);
+ }
+ err = gnutls_certificate_set_x509_trust_file (x509_creds, ca_cert_filename,
+ GNUTLS_X509_FMT_PEM);
+ if (err < 0) {
+ print_gnutls_error (err, "loading %s", ca_cert_filename);
+ exit (EXIT_FAILURE);
+ }
+
+ if (access (ca_crl_filename, R_OK) == 0) {
+ err = gnutls_certificate_set_x509_crl_file (x509_creds, ca_crl_filename,
+ GNUTLS_X509_FMT_PEM);
+ if (err < 0) {
+ print_gnutls_error (err, "loading %s", ca_crl_filename);
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ err = gnutls_certificate_set_x509_key_file (x509_creds,
+ server_cert_filename,
+ server_key_filename,
+ GNUTLS_X509_FMT_PEM);
+ if (err < 0) {
+ print_gnutls_error (err, "loading server certificate and key (%s, %s)",
+ server_cert_filename, server_key_filename);
+ exit (EXIT_FAILURE);
+ }
+
+ debug ("successfully loaded TLS certificates from %s", path);
+ return 1;
+}
+
+static int
+start_certificates (void)
+{
+ /* Try to locate the certificates directory and load them. */
+ if (tls_certificates_dir == NULL) {
+ const char *home;
+ CLEANUP_FREE char *path = NULL;
+
+ if (geteuid () != 0) {
+ home = getenv ("HOME");
+ if (home) {
+ if (asprintf (&path, "%s/.pki/%s", home, PACKAGE_NAME) == -1) {
+ perror ("asprintf");
+ exit (EXIT_FAILURE);
+ }
+ if (load_certificates (path))
+ goto found_certificates;
+ free (path);
+ if (asprintf (&path, "%s/.config/pki/%s", home, PACKAGE_NAME) == -1) {
+ perror ("asprintf");
+ exit (EXIT_FAILURE);
+ }
+ if (load_certificates (path))
+ goto found_certificates;
+ }
+ }
+ else { /* geteuid () == 0 */
+ if (load_certificates (root_tls_certificates_dir))
+ goto found_certificates;
+ }
+ }
+ else {
+ if (load_certificates (tls_certificates_dir))
+ goto found_certificates;
+ }
+ return -1;
+
+ found_certificates:
+#ifdef HAVE_GNUTLS_CERTIFICATE_SET_KNOWN_DH_PARAMS
+ gnutls_certificate_set_known_dh_params (x509_creds, GNUTLS_SEC_PARAM_MEDIUM);
+#endif
+ return 0;
+}
+
+static int
+start_psk (void)
+{
+ int err;
+ CLEANUP_FREE char *abs_psk_file = NULL;
+
+ /* Make sure the path to the PSK file is absolute. */
+ abs_psk_file = realpath (tls_psk, NULL);
+ if (abs_psk_file == NULL) {
+ perror (tls_psk);
+ exit (EXIT_FAILURE);
+ }
+
+ err = gnutls_psk_allocate_server_credentials (&psk_creds);
+ if (err < 0) {
+ print_gnutls_error (err, "allocating PSK credentials");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Note that this function makes a copy of the string.
+ * CLEANUP_FREE macro above will free abs_psk_file when
+ * we return, but this is safe.
+ */
+ gnutls_psk_set_server_credentials_file (psk_creds, abs_psk_file);
+
+ return 0;
+}
+
+/* Initialize crypto. This also handles the command line parameters
+ * and loading the server certificate.
+ */
+void
+crypto_init (bool tls_set_on_cli)
+{
+ int err, r;
+ const char *what;
+
+ err = gnutls_global_init ();
+ if (err < 0) {
+ print_gnutls_error (err, "initializing GnuTLS");
+ exit (EXIT_FAILURE);
+ }
+
+ if (tls == 0) /* --tls=off */
+ return;
+
+ /* --tls-psk overrides certificates. */
+ if (tls_psk != NULL) {
+ what = "Pre-Shared Keys (PSK)";
+ r = start_psk ();
+ if (r == 0)
+ crypto_auth = CRYPTO_AUTH_PSK;
+ }
+ else {
+ what = "X.509 certificates";
+ r = start_certificates ();
+ if (r == 0)
+ crypto_auth = CRYPTO_AUTH_CERTIFICATES;
+ }
+
+ if (r == 0) {
+ debug ("TLS enabled using: %s", what);
+ return;
+ }
+
+ /* If we get here, we didn't manage to load the PSK file /
+ * certificates. If --tls=require was given on the command line
+ * then that's a problem.
+ */
+ if (tls == 2) { /* --tls=require */
+ fprintf (stderr,
+ "%s: --tls=require but could not load TLS certificates.\n"
+ "Try setting ‘--tls-certificates=/path/to/certificates’ or read\n"
+ "the \"TLS\" section in nbdkit(1).\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ /* If --tls=on was given on the command line, warn before we turn
+ * TLS off.
+ */
+ if (tls == 1 && tls_set_on_cli) { /* explicit --tls=on */
+ fprintf (stderr,
+ "%s: warning: --tls=on but could not load TLS certificates.\n"
+ "TLS will be disabled and TLS connections will be rejected.\n"
+ "Try setting ‘--tls-certificates=/path/to/certificates’ or read\n"
+ "the \"TLS\" section in nbdkit(1).\n",
+ program_name);
+ }
+
+ tls = 0;
+ debug ("TLS disabled: could not load TLS certificates");
+}
+
+void
+crypto_free (void)
+{
+ if (tls > 0) {
+ switch (crypto_auth) {
+ case CRYPTO_AUTH_CERTIFICATES:
+ gnutls_certificate_free_credentials (x509_creds);
+ break;
+ case CRYPTO_AUTH_PSK:
+ gnutls_psk_free_server_credentials (psk_creds);
+ break;
+ }
+ }
+
+ gnutls_global_deinit ();
+}
+
+/* Read buffer from GnuTLS and either succeed completely
+ * (returns > 0), read an EOF (returns 0), or fail (returns -1).
+ */
+static int
+crypto_recv (struct connection *conn, void *vbuf, size_t len)
+{
+ gnutls_session_t session = conn->crypto_session;
+ char *buf = vbuf;
+ ssize_t r;
+ bool first_read = true;
+
+ assert (session != NULL);
+
+ while (len > 0) {
+ r = gnutls_record_recv (session, buf, len);
+ if (r < 0) {
+ if (r == GNUTLS_E_INTERRUPTED || r == GNUTLS_E_AGAIN)
+ continue;
+ nbdkit_error ("gnutls_record_recv: %s", gnutls_strerror (r));
+ errno = EIO;
+ return -1;
+ }
+ if (r == 0) {
+ if (first_read)
+ return 0;
+ /* Partial record read. This is an error. */
+ errno = EBADMSG;
+ return -1;
+ }
+ first_read = false;
+ buf += r;
+ len -= r;
+ }
+
+ return 1;
+}
+
+/* Write buffer to GnuTLS and either succeed completely
+ * (returns 0) or fail (returns -1).
+ */
+static int
+crypto_send (struct connection *conn, const void *vbuf, size_t len)
+{
+ gnutls_session_t session = conn->crypto_session;
+ const char *buf = vbuf;
+ ssize_t r;
+
+ assert (session != NULL);
+
+ while (len > 0) {
+ r = gnutls_record_send (session, buf, len);
+ if (r < 0) {
+ if (r == GNUTLS_E_INTERRUPTED || r == GNUTLS_E_AGAIN)
+ continue;
+ return -1;
+ }
+ buf += r;
+ len -= r;
+ }
+
+ return 0;
+}
+
+/* There's no place in the NBD protocol to send back errors from
+ * close, so this function ignores errors.
+ */
+static void
+crypto_close (struct connection *conn)
+{
+ gnutls_session_t session = conn->crypto_session;
+ int sockin, sockout;
+
+ assert (session != NULL);
+
+ gnutls_transport_get_int2 (session, &sockin, &sockout);
+
+ gnutls_bye (session, GNUTLS_SHUT_RDWR);
+
+ if (sockin >= 0)
+ close (sockin);
+ if (sockout >= 0 && sockin != sockout)
+ close (sockout);
+
+ gnutls_deinit (session);
+ conn->crypto_session = NULL;
+}
+
+/* Upgrade an existing connection to TLS. Also this should do access
+ * control if enabled. The protocol code ensures this function can
+ * only be called once per connection.
+ */
+int
+crypto_negotiate_tls (struct connection *conn, int sockin, int sockout)
+{
+ gnutls_session_t session;
+ CLEANUP_FREE char *priority = NULL;
+ int err;
+
+ /* Create the GnuTLS session. */
+ err = gnutls_init (&session, GNUTLS_SERVER);
+ if (err < 0) {
+ nbdkit_error ("gnutls_init: %s", gnutls_strerror (err));
+ free (session);
+ return -1;
+ }
+
+ switch (crypto_auth) {
+ case CRYPTO_AUTH_CERTIFICATES:
+ /* Associate the session with the server credentials (key, cert). */
+ err = gnutls_credentials_set (session, GNUTLS_CRD_CERTIFICATE,
+ x509_creds);
+ if (err < 0) {
+ nbdkit_error ("gnutls_credentials_set: %s", gnutls_strerror (err));
+ goto error;
+ }
+
+ /* If verify peer is enabled, tell GnuTLS to request the client
+ * certificates. (Note the default is to not request or verify
+ * certificates).
+ */
+ if (tls_verify_peer) {
+#ifdef HAVE_GNUTLS_SESSION_SET_VERIFY_CERT
+ gnutls_certificate_server_set_request (session, GNUTLS_CERT_REQUEST);
+ gnutls_session_set_verify_cert (session, NULL, 0);
+#else
+ nbdkit_error ("--tls-verify-peer: "
+ "GnuTLS >= 3.4.6 is required for this feature");
+ goto error;
+#endif
+ }
+
+ priority = strdup (TLS_PRIORITY);
+ if (priority == NULL) {
+ nbdkit_error ("strdup: %m");
+ goto error;
+ }
+ break;
+
+ case CRYPTO_AUTH_PSK:
+ /* Associate the session with the server PSK credentials. */
+ err = gnutls_credentials_set (session, GNUTLS_CRD_PSK, psk_creds);
+ if (err < 0) {
+ nbdkit_error ("gnutls_credentials_set: %s", gnutls_strerror (err));
+ goto error;
+ }
+
+ if (asprintf (&priority,
+ "%s:+ECDHE-PSK:+DHE-PSK:+PSK", TLS_PRIORITY) == -1) {
+ nbdkit_error ("asprintf: %m");
+ goto error;
+ }
+ break;
+
+ default:
+ abort ();
+ }
+
+ assert (priority != NULL);
+ err = gnutls_priority_set_direct (session, priority, NULL);
+ if (err < 0) {
+ nbdkit_error ("failed to set TLS session priority to %s: %s",
+ priority, gnutls_strerror (err));
+ goto error;
+ }
+
+ /* Set up GnuTLS so it reads and writes on the raw sockets. */
+ gnutls_transport_set_int2 (session, sockin, sockout);
+
+ /* Perform the handshake. */
+ debug ("starting TLS handshake");
+ gnutls_handshake_set_timeout (session,
+ GNUTLS_DEFAULT_HANDSHAKE_TIMEOUT);
+
+ do {
+ err = gnutls_handshake (session);
+ } while (err < 0 && gnutls_error_is_fatal (err) == 0);
+ if (err < 0) {
+ gnutls_handshake_description_t in, out;
+
+ /* Get some additional debug information about where in the
+ * handshake protocol it failed. You have to look up these codes in
+ * <gnutls/gnutls.h>.
+ */
+ in = gnutls_handshake_get_last_in (session);
+ out = gnutls_handshake_get_last_out (session);
+ nbdkit_error ("gnutls_handshake: %s (%d/%d)",
+ gnutls_strerror (err), (int) in, (int) out);
+ goto error;
+ }
+ debug ("TLS handshake completed");
+
+ /* Set up the connection recv/send/close functions so they call
+ * GnuTLS wrappers instead.
+ */
+ conn->crypto_session = session;
+ conn->recv = crypto_recv;
+ conn->send = crypto_send;
+ conn->close = crypto_close;
+ return 0;
+
+ error:
+ gnutls_deinit (session);
+ return -1;
+}
+
+#else /* !HAVE_GNUTLS */
+
+/* GnuTLS was not available at compile time. These are stub versions
+ * of the above functions which either do nothing or report errors as
+ * appropriate.
+ */
+
+void
+crypto_init (bool tls_set_on_cli)
+{
+ if (tls > 0) {
+ fprintf (stderr,
+ "%s: TLS cannot be enabled because "
+ "this binary was compiled without GnuTLS.\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ tls = 0;
+ debug ("TLS disabled: nbdkit was not compiled with GnuTLS support");
+}
+
+void
+crypto_free (void)
+{
+ /* nothing */
+}
+
+int
+crypto_negotiate_tls (struct connection *conn, int sockin, int sockout)
+{
+ /* Should never be called because tls == 0. */
+ abort ();
+}
+
+#endif /* !HAVE_GNUTLS */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <errno.h>
+
+#include "internal.h"
+
+/* Called with flockfile (stderr) taken. */
+static void
+prologue (void)
+{
+ const char *name = threadlocal_get_name ();
+ size_t instance_num = threadlocal_get_instance_num ();
+
+ fprintf (stderr, "%s: ", program_name);
+
+ if (name) {
+ fprintf (stderr, "%s", name);
+ if (instance_num > 0)
+ fprintf (stderr, "[%zu]", instance_num);
+ fprintf (stderr, ": ");
+ }
+
+ fprintf (stderr, "debug: ");
+}
+
+/* Note: preserves the previous value of errno. */
+void
+nbdkit_vdebug (const char *fs, va_list args)
+{
+ int err = errno;
+
+ if (!verbose)
+ return;
+ flockfile (stderr);
+ prologue ();
+
+ vfprintf (stderr, fs, args);
+
+ fprintf (stderr, "\n");
+ funlockfile (stderr);
+
+ errno = err;
+}
+
+/* Note: preserves the previous value of errno. */
+void
+nbdkit_debug (const char *fs, ...)
+{
+ va_list args;
+ int err = errno;
+
+ if (!verbose)
+ return;
+
+ flockfile (stderr);
+ prologue ();
+
+ va_start (args, fs);
+ vfprintf (stderr, fs, args);
+ va_end (args);
+
+ fprintf (stderr, "\n");
+ funlockfile (stderr);
+
+ errno = err;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <string.h>
+#include <inttypes.h>
+#include <errno.h>
+#include <assert.h>
+
+#include "minmax.h"
+
+#include "internal.h"
+
+struct nbdkit_extents {
+ struct nbdkit_extent *extents;
+ size_t nr_extents, allocated;
+
+ uint64_t start, end; /* end is one byte beyond the end of the range */
+
+ /* Where we expect the next extent to be added. If
+ * nbdkit_add_extent has never been called this is -1. Note this
+ * field is updated even if we don't actually add the extent because
+ * it's used to check for API violations.
+ */
+ int64_t next;
+};
+
+struct nbdkit_extents *
+nbdkit_extents_new (uint64_t start, uint64_t end)
+{
+ struct nbdkit_extents *r;
+
+ if (start > INT64_MAX || end > INT64_MAX) {
+ nbdkit_error ("nbdkit_extents_new: "
+ "start (%" PRIu64 ") or end (%" PRIu64 ") > INT64_MAX",
+ start, end);
+ errno = ERANGE;
+ return NULL;
+ }
+
+ /* 0-length ranges are possible, so start == end is not an error. */
+ if (start > end) {
+ nbdkit_error ("nbdkit_extents_new: "
+ "start (%" PRIu64 ") >= end (%" PRIu64 ")",
+ start, end);
+ errno = ERANGE;
+ return NULL;
+ }
+
+ r = malloc (sizeof *r);
+ if (r == NULL) {
+ nbdkit_error ("nbdkit_extents_new: malloc: %m");
+ return NULL;
+ }
+ r->extents = NULL;
+ r->nr_extents = r->allocated = 0;
+ r->start = start;
+ r->end = end;
+ r->next = -1;
+ return r;
+}
+
+void
+nbdkit_extents_free (struct nbdkit_extents *exts)
+{
+ if (exts) {
+ free (exts->extents);
+ free (exts);
+ }
+}
+
+size_t
+nbdkit_extents_count (const struct nbdkit_extents *exts)
+{
+ return exts->nr_extents;
+}
+
+struct nbdkit_extent
+nbdkit_get_extent (const struct nbdkit_extents *exts, size_t i)
+{
+ assert (i < exts->nr_extents);
+ return exts->extents[i];
+}
+
+/* Insert *e in the list at the end. */
+static int
+append_extent (struct nbdkit_extents *exts, const struct nbdkit_extent *e)
+{
+ if (exts->nr_extents >= exts->allocated) {
+ size_t new_allocated;
+ struct nbdkit_extent *new_extents;
+
+ new_allocated = exts->allocated;
+ if (new_allocated == 0)
+ new_allocated = 1;
+ new_allocated *= 2;
+ new_extents =
+ realloc (exts->extents, new_allocated * sizeof (struct nbdkit_extent));
+ if (new_extents == NULL) {
+ nbdkit_error ("nbdkit_add_extent: realloc: %m");
+ return -1;
+ }
+ exts->allocated = new_allocated;
+ exts->extents = new_extents;
+ }
+
+ exts->extents[exts->nr_extents] = *e;
+ exts->nr_extents++;
+ return 0;
+}
+
+int
+nbdkit_add_extent (struct nbdkit_extents *exts,
+ uint64_t offset, uint64_t length, uint32_t type)
+{
+ uint64_t overlap;
+
+ /* Extents must be added in strictly ascending, contiguous order. */
+ if (exts->next >= 0 && exts->next != offset) {
+ nbdkit_error ("nbdkit_add_extent: "
+ "extents must be added in ascending order and "
+ "must be contiguous");
+ errno = ERANGE;
+ return -1;
+ }
+ exts->next = offset + length;
+
+ /* Ignore zero-length extents. */
+ if (length == 0)
+ return 0;
+
+ /* Ignore extents beyond the end of the range. */
+ if (offset >= exts->end)
+ return 0;
+
+ /* Shorten extents that overlap the end of the range. */
+ if (offset + length > exts->end) {
+ overlap = offset + length - exts->end;
+ length -= overlap;
+ }
+
+ if (exts->nr_extents == 0) {
+ /* If there are no existing extents, and the new extent is
+ * entirely before start, ignore it.
+ */
+ if (offset + length <= exts->start)
+ return 0;
+
+ /* If there are no existing extents, and the new extent is after
+ * start, then this is a bug in the plugin.
+ */
+ if (offset > exts->start) {
+ nbdkit_error ("nbdkit_add_extent: "
+ "first extent must not be > start (%" PRIu64 ")",
+ exts->start);
+ errno = ERANGE;
+ return -1;
+ }
+
+ /* If there are no existing extents, and the new extent overlaps
+ * start, truncate it so it starts at start.
+ */
+ overlap = exts->start - offset;
+ length -= overlap;
+ offset += overlap;
+ }
+
+ /* If we get here we are going to either add or extend. */
+ if (exts->nr_extents > 0 &&
+ exts->extents[exts->nr_extents-1].type == type) {
+ /* Coalesce with the last extent. */
+ exts->extents[exts->nr_extents-1].length += length;
+ return 0;
+ }
+ else {
+ /* Add a new extent. */
+ const struct nbdkit_extent e =
+ { .offset = offset, .length = length, .type = type };
+ return append_extent (exts, &e);
+ }
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <inttypes.h>
+#include <assert.h>
+
+#include <dlfcn.h>
+
+#include "internal.h"
+
+/* We extend the generic backend struct with extra fields relating
+ * to this filter.
+ */
+struct backend_filter {
+ struct backend backend;
+ char *name; /* copy of filter.name */
+ char *filename;
+ void *dl;
+ struct nbdkit_filter filter;
+};
+
+/* Literally a backend + a connection pointer. This is the
+ * implementation of ‘void *nxdata’ in the filter API.
+ */
+struct b_conn {
+ struct backend *b;
+ struct connection *conn;
+};
+
+/* Note this frees the whole chain. */
+static void
+filter_free (struct backend *b)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+
+ f->backend.next->free (f->backend.next);
+
+ /* Acquiring this lock prevents any filter callbacks from running
+ * simultaneously.
+ */
+ lock_unload ();
+
+ debug ("%s: unload", f->name);
+ if (f->filter.unload)
+ f->filter.unload ();
+
+ if (DO_DLCLOSE)
+ dlclose (f->dl);
+ free (f->filename);
+
+ unlock_unload ();
+
+ free (f->name);
+ free (f);
+}
+
+static int
+filter_thread_model (struct backend *b)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ int filter_thread_model = f->filter._thread_model;
+ int thread_model = f->backend.next->thread_model (f->backend.next);
+
+ if (filter_thread_model < thread_model) /* more serialized */
+ thread_model = filter_thread_model;
+
+ return thread_model;
+}
+
+/* This is actually passing the request through to the final plugin,
+ * hence the function name.
+ */
+static const char *
+plugin_name (struct backend *b)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+
+ return f->backend.next->plugin_name (f->backend.next);
+}
+
+static const char *
+filter_name (struct backend *b)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+
+ return f->name;
+}
+
+static const char *
+filter_version (struct backend *b)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+
+ return f->filter.version;
+}
+
+static void
+filter_usage (struct backend *b)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ const char *p;
+
+ printf ("filter: %s", f->name);
+ if (f->filter.longname)
+ printf (" (%s)", f->filter.longname);
+ printf ("\n");
+ printf ("(%s)\n", f->filename);
+ if (f->filter.description) {
+ printf ("%s", f->filter.description);
+ if ((p = strrchr (f->filter.description, '\n')) == NULL || p[1])
+ printf ("\n");
+ }
+ if (f->filter.config_help) {
+ printf ("%s", f->filter.config_help);
+ if ((p = strrchr (f->filter.config_help, '\n')) == NULL || p[1])
+ printf ("\n");
+ }
+}
+
+static void
+filter_dump_fields (struct backend *b)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+
+ f->backend.next->dump_fields (f->backend.next);
+}
+
+static int
+next_config (void *nxdata, const char *key, const char *value)
+{
+ struct backend *b = nxdata;
+ b->config (b, key, value);
+ return 0;
+}
+
+static void
+filter_config (struct backend *b, const char *key, const char *value)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+
+ debug ("%s: config key=%s, value=%s",
+ f->name, key, value);
+
+ if (f->filter.config) {
+ if (f->filter.config (next_config, f->backend.next, key, value) == -1)
+ exit (EXIT_FAILURE);
+ }
+ else
+ f->backend.next->config (f->backend.next, key, value);
+}
+
+static int
+next_config_complete (void *nxdata)
+{
+ struct backend *b = nxdata;
+ b->config_complete (b);
+ return 0;
+}
+
+static void
+filter_config_complete (struct backend *b)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+
+ debug ("%s: config_complete", f->name);
+
+ if (f->filter.config_complete) {
+ if (f->filter.config_complete (next_config_complete, f->backend.next) == -1)
+ exit (EXIT_FAILURE);
+ }
+ else
+ f->backend.next->config_complete (f->backend.next);
+}
+
+/* magic_config_key only applies to plugins, so this passes the
+ * request through to the plugin (hence the name).
+ */
+static const char *
+plugin_magic_config_key (struct backend *b)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+
+ return f->backend.next->magic_config_key (f->backend.next);
+}
+
+static int
+next_open (void *nxdata, int readonly)
+{
+ struct b_conn *b_conn = nxdata;
+
+ return b_conn->b->open (b_conn->b, b_conn->conn, readonly);
+}
+
+static int
+filter_open (struct backend *b, struct connection *conn, int readonly)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+ void *handle;
+
+ debug ("%s: open readonly=%d", f->name, readonly);
+
+ if (f->filter.open) {
+ handle = f->filter.open (next_open, &nxdata, readonly);
+ if (handle == NULL)
+ return -1;
+ connection_set_handle (conn, f->backend.i, handle);
+ return 0;
+ }
+ else
+ return f->backend.next->open (f->backend.next, conn, readonly);
+}
+
+static void
+filter_close (struct backend *b, struct connection *conn)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+
+ debug ("%s: close", f->name);
+
+ if (f->filter.close)
+ f->filter.close (handle);
+ f->backend.next->close (f->backend.next, conn);
+}
+
+/* The next_functions structure contains pointers to backend
+ * functions. However because these functions are all expecting a
+ * backend and a connection, we cannot call them directly, but must
+ * write some next_* functions that unpack the two parameters from a
+ * single ‘void *nxdata’ struct pointer (‘b_conn’).
+ */
+
+static int64_t
+next_get_size (void *nxdata)
+{
+ struct b_conn *b_conn = nxdata;
+ return b_conn->b->get_size (b_conn->b, b_conn->conn);
+}
+
+static int
+next_can_write (void *nxdata)
+{
+ struct b_conn *b_conn = nxdata;
+ return b_conn->b->can_write (b_conn->b, b_conn->conn);
+}
+
+static int
+next_can_flush (void *nxdata)
+{
+ struct b_conn *b_conn = nxdata;
+ return b_conn->b->can_flush (b_conn->b, b_conn->conn);
+}
+
+static int
+next_is_rotational (void *nxdata)
+{
+ struct b_conn *b_conn = nxdata;
+ return b_conn->b->is_rotational (b_conn->b, b_conn->conn);
+}
+
+static int
+next_can_trim (void *nxdata)
+{
+ struct b_conn *b_conn = nxdata;
+ return b_conn->b->can_trim (b_conn->b, b_conn->conn);
+}
+
+static int
+next_can_zero (void *nxdata)
+{
+ struct b_conn *b_conn = nxdata;
+ return b_conn->b->can_zero (b_conn->b, b_conn->conn);
+}
+
+static int
+next_can_extents (void *nxdata)
+{
+ struct b_conn *b_conn = nxdata;
+ return b_conn->b->can_extents (b_conn->b, b_conn->conn);
+}
+
+static int
+next_can_fua (void *nxdata)
+{
+ struct b_conn *b_conn = nxdata;
+ return b_conn->b->can_fua (b_conn->b, b_conn->conn);
+}
+
+static int
+next_can_multi_conn (void *nxdata)
+{
+ struct b_conn *b_conn = nxdata;
+ return b_conn->b->can_multi_conn (b_conn->b, b_conn->conn);
+}
+
+static int
+next_pread (void *nxdata, void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ struct b_conn *b_conn = nxdata;
+ return b_conn->b->pread (b_conn->b, b_conn->conn, buf, count, offset, flags,
+ err);
+}
+
+static int
+next_pwrite (void *nxdata, const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ struct b_conn *b_conn = nxdata;
+ return b_conn->b->pwrite (b_conn->b, b_conn->conn, buf, count, offset, flags,
+ err);
+}
+
+static int
+next_flush (void *nxdata, uint32_t flags, int *err)
+{
+ struct b_conn *b_conn = nxdata;
+ return b_conn->b->flush (b_conn->b, b_conn->conn, flags, err);
+}
+
+static int
+next_trim (void *nxdata, uint32_t count, uint64_t offset, uint32_t flags,
+ int *err)
+{
+ struct b_conn *b_conn = nxdata;
+ return b_conn->b->trim (b_conn->b, b_conn->conn, count, offset, flags, err);
+}
+
+static int
+next_zero (void *nxdata, uint32_t count, uint64_t offset, uint32_t flags,
+ int *err)
+{
+ struct b_conn *b_conn = nxdata;
+ return b_conn->b->zero (b_conn->b, b_conn->conn, count, offset, flags, err);
+}
+
+static int
+next_extents (void *nxdata, uint32_t count, uint64_t offset, uint32_t flags,
+ struct nbdkit_extents *extents, int *err)
+{
+ struct b_conn *b_conn = nxdata;
+ return b_conn->b->extents (b_conn->b, b_conn->conn, count, offset, flags,
+ extents, err);
+}
+
+static struct nbdkit_next_ops next_ops = {
+ .get_size = next_get_size,
+ .can_write = next_can_write,
+ .can_flush = next_can_flush,
+ .is_rotational = next_is_rotational,
+ .can_trim = next_can_trim,
+ .can_zero = next_can_zero,
+ .can_extents = next_can_extents,
+ .can_fua = next_can_fua,
+ .can_multi_conn = next_can_multi_conn,
+ .pread = next_pread,
+ .pwrite = next_pwrite,
+ .flush = next_flush,
+ .trim = next_trim,
+ .zero = next_zero,
+ .extents = next_extents,
+};
+
+static int
+filter_prepare (struct backend *b, struct connection *conn)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+
+ debug ("%s: prepare", f->name);
+
+ /* Call these in order starting from the filter closest to the
+ * plugin.
+ */
+ if (f->backend.next->prepare (f->backend.next, conn) == -1)
+ return -1;
+
+ if (f->filter.prepare &&
+ f->filter.prepare (&next_ops, &nxdata, handle) == -1)
+ return -1;
+
+ return 0;
+}
+
+static int
+filter_finalize (struct backend *b, struct connection *conn)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+
+ debug ("%s: finalize", f->name);
+
+ /* Call these in reverse order to .prepare above, starting from the
+ * filter furthest away from the plugin.
+ */
+ if (f->filter.finalize &&
+ f->filter.finalize (&next_ops, &nxdata, handle) == -1)
+ return -1;
+
+ return f->backend.next->finalize (f->backend.next, conn);
+}
+
+static int64_t
+filter_get_size (struct backend *b, struct connection *conn)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+
+ debug ("%s: get_size", f->name);
+
+ if (f->filter.get_size)
+ return f->filter.get_size (&next_ops, &nxdata, handle);
+ else
+ return f->backend.next->get_size (f->backend.next, conn);
+}
+
+static int
+filter_can_write (struct backend *b, struct connection *conn)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+
+ debug ("%s: can_write", f->name);
+
+ if (f->filter.can_write)
+ return f->filter.can_write (&next_ops, &nxdata, handle);
+ else
+ return f->backend.next->can_write (f->backend.next, conn);
+}
+
+static int
+filter_can_flush (struct backend *b, struct connection *conn)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+
+ debug ("%s: can_flush", f->name);
+
+ if (f->filter.can_flush)
+ return f->filter.can_flush (&next_ops, &nxdata, handle);
+ else
+ return f->backend.next->can_flush (f->backend.next, conn);
+}
+
+static int
+filter_is_rotational (struct backend *b, struct connection *conn)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+
+ debug ("%s: is_rotational", f->name);
+
+ if (f->filter.is_rotational)
+ return f->filter.is_rotational (&next_ops, &nxdata, handle);
+ else
+ return f->backend.next->is_rotational (f->backend.next, conn);
+}
+
+static int
+filter_can_trim (struct backend *b, struct connection *conn)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+
+ debug ("%s: can_trim", f->name);
+
+ if (f->filter.can_trim)
+ return f->filter.can_trim (&next_ops, &nxdata, handle);
+ else
+ return f->backend.next->can_trim (f->backend.next, conn);
+}
+
+static int
+filter_can_zero (struct backend *b, struct connection *conn)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+
+ debug ("%s: can_zero", f->name);
+
+ if (f->filter.can_zero)
+ return f->filter.can_zero (&next_ops, &nxdata, handle);
+ else
+ return f->backend.next->can_zero (f->backend.next, conn);
+}
+
+static int
+filter_can_extents (struct backend *b, struct connection *conn)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+
+ debug ("%s: can_extents", f->name);
+
+ if (f->filter.can_extents)
+ return f->filter.can_extents (&next_ops, &nxdata, handle);
+ else
+ return f->backend.next->can_extents (f->backend.next, conn);
+}
+
+static int
+filter_can_fua (struct backend *b, struct connection *conn)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+
+ debug ("%s: can_fua", f->name);
+
+ if (f->filter.can_fua)
+ return f->filter.can_fua (&next_ops, &nxdata, handle);
+ else
+ return f->backend.next->can_fua (f->backend.next, conn);
+}
+
+static int
+filter_can_multi_conn (struct backend *b, struct connection *conn)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+
+ debug ("%s: can_multi_conn", f->name);
+
+ if (f->filter.can_multi_conn)
+ return f->filter.can_multi_conn (&next_ops, &nxdata, handle);
+ else
+ return f->backend.next->can_multi_conn (f->backend.next, conn);
+}
+
+static int
+filter_pread (struct backend *b, struct connection *conn,
+ void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+
+ assert (flags == 0);
+
+ debug ("%s: pread count=%" PRIu32 " offset=%" PRIu64 " flags=0x%" PRIx32,
+ f->name, count, offset, flags);
+
+ if (f->filter.pread)
+ return f->filter.pread (&next_ops, &nxdata, handle,
+ buf, count, offset, flags, err);
+ else
+ return f->backend.next->pread (f->backend.next, conn,
+ buf, count, offset, flags, err);
+}
+
+static int
+filter_pwrite (struct backend *b, struct connection *conn,
+ const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+
+ assert (!(flags & ~NBDKIT_FLAG_FUA));
+
+ debug ("%s: pwrite count=%" PRIu32 " offset=%" PRIu64 " flags=0x%" PRIx32,
+ f->name, count, offset, flags);
+
+ if (f->filter.pwrite)
+ return f->filter.pwrite (&next_ops, &nxdata, handle,
+ buf, count, offset, flags, err);
+ else
+ return f->backend.next->pwrite (f->backend.next, conn,
+ buf, count, offset, flags, err);
+}
+
+static int
+filter_flush (struct backend *b, struct connection *conn, uint32_t flags,
+ int *err)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+
+ assert (flags == 0);
+
+ debug ("%s: flush flags=0x%" PRIx32, f->name, flags);
+
+ if (f->filter.flush)
+ return f->filter.flush (&next_ops, &nxdata, handle, flags, err);
+ else
+ return f->backend.next->flush (f->backend.next, conn, flags, err);
+}
+
+static int
+filter_trim (struct backend *b, struct connection *conn,
+ uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+
+ assert (flags == 0);
+
+ debug ("%s: trim count=%" PRIu32 " offset=%" PRIu64 " flags=0x%" PRIx32,
+ f->name, count, offset, flags);
+
+ if (f->filter.trim)
+ return f->filter.trim (&next_ops, &nxdata, handle, count, offset, flags,
+ err);
+ else
+ return f->backend.next->trim (f->backend.next, conn, count, offset, flags,
+ err);
+}
+
+static int
+filter_zero (struct backend *b, struct connection *conn,
+ uint32_t count, uint64_t offset, uint32_t flags, int *err)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+
+ assert (!(flags & ~(NBDKIT_FLAG_MAY_TRIM | NBDKIT_FLAG_FUA)));
+
+ debug ("%s: zero count=%" PRIu32 " offset=%" PRIu64 " flags=0x%" PRIx32,
+ f->name, count, offset, flags);
+
+ if (f->filter.zero)
+ return f->filter.zero (&next_ops, &nxdata, handle,
+ count, offset, flags, err);
+ else
+ return f->backend.next->zero (f->backend.next, conn,
+ count, offset, flags, err);
+}
+
+static int
+filter_extents (struct backend *b, struct connection *conn,
+ uint32_t count, uint64_t offset, uint32_t flags,
+ struct nbdkit_extents *extents, int *err)
+{
+ struct backend_filter *f = container_of (b, struct backend_filter, backend);
+ void *handle = connection_get_handle (conn, f->backend.i);
+ struct b_conn nxdata = { .b = f->backend.next, .conn = conn };
+
+ assert (!(flags & ~NBDKIT_FLAG_REQ_ONE));
+
+ debug ("%s: extents count=%" PRIu32 " offset=%" PRIu64 " flags=0x%" PRIx32,
+ f->name, count, offset, flags);
+
+ if (f->filter.extents)
+ return f->filter.extents (&next_ops, &nxdata, handle,
+ count, offset, flags,
+ extents, err);
+ else
+ return f->backend.next->extents (f->backend.next, conn,
+ count, offset, flags,
+ extents, err);
+}
+
+static struct backend filter_functions = {
+ .free = filter_free,
+ .thread_model = filter_thread_model,
+ .name = filter_name,
+ .plugin_name = plugin_name,
+ .usage = filter_usage,
+ .version = filter_version,
+ .dump_fields = filter_dump_fields,
+ .config = filter_config,
+ .config_complete = filter_config_complete,
+ .magic_config_key = plugin_magic_config_key,
+ .open = filter_open,
+ .prepare = filter_prepare,
+ .finalize = filter_finalize,
+ .close = filter_close,
+ .get_size = filter_get_size,
+ .can_write = filter_can_write,
+ .can_flush = filter_can_flush,
+ .is_rotational = filter_is_rotational,
+ .can_trim = filter_can_trim,
+ .can_zero = filter_can_zero,
+ .can_extents = filter_can_extents,
+ .can_fua = filter_can_fua,
+ .can_multi_conn = filter_can_multi_conn,
+ .pread = filter_pread,
+ .pwrite = filter_pwrite,
+ .flush = filter_flush,
+ .trim = filter_trim,
+ .zero = filter_zero,
+ .extents = filter_extents,
+};
+
+/* Register and load a filter. */
+struct backend *
+filter_register (struct backend *next, size_t index, const char *filename,
+ void *dl, struct nbdkit_filter *(*filter_init) (void))
+{
+ struct backend_filter *f;
+ const struct nbdkit_filter *filter;
+ size_t i, len;
+
+ f = calloc (1, sizeof *f);
+ if (f == NULL) {
+ out_of_memory:
+ perror ("strdup");
+ exit (EXIT_FAILURE);
+ }
+
+ f->backend = filter_functions;
+ f->backend.next = next;
+ f->backend.i = index;
+ f->filename = strdup (filename);
+ if (f->filename == NULL) goto out_of_memory;
+ f->dl = dl;
+
+ debug ("registering filter %s", f->filename);
+
+ /* Call the initialization function which returns the address of the
+ * filter's own 'struct nbdkit_filter'.
+ */
+ filter = filter_init ();
+ if (!filter) {
+ fprintf (stderr, "%s: %s: filter registration function failed\n",
+ program_name, f->filename);
+ exit (EXIT_FAILURE);
+ }
+
+ /* We do not provide API or ABI guarantees for filters, other than
+ * the ABI position of _api_version that will let us diagnose
+ * mismatch when the API changes.
+ */
+ if (filter->_api_version != NBDKIT_FILTER_API_VERSION) {
+ fprintf (stderr,
+ "%s: %s: filter is incompatible with this version of nbdkit "
+ "(_api_version = %d)\n",
+ program_name, f->filename, filter->_api_version);
+ exit (EXIT_FAILURE);
+ }
+
+ f->filter = *filter;
+
+ /* Only filter.name is required. */
+ if (f->filter.name == NULL) {
+ fprintf (stderr, "%s: %s: filter must have a .name field\n",
+ program_name, f->filename);
+ exit (EXIT_FAILURE);
+ }
+
+ len = strlen (f->filter.name);
+ if (len == 0) {
+ fprintf (stderr, "%s: %s: filter.name field must not be empty\n",
+ program_name, f->filename);
+ exit (EXIT_FAILURE);
+ }
+ for (i = 0; i < len; ++i) {
+ if (!((f->filter.name[i] >= '0' && f->filter.name[i] <= '9') ||
+ (f->filter.name[i] >= 'a' && f->filter.name[i] <= 'z') ||
+ (f->filter.name[i] >= 'A' && f->filter.name[i] <= 'Z'))) {
+ fprintf (stderr,
+ "%s: %s: filter.name ('%s') field "
+ "must contain only ASCII alphanumeric characters\n",
+ program_name, f->filename, f->filter.name);
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ /* Copy the module's name into local storage, so that filter.name
+ * survives past unload.
+ */
+ f->name = strdup (f->filter.name);
+ if (f->name == NULL) {
+ perror ("strdup");
+ exit (EXIT_FAILURE);
+ }
+
+ debug ("registered filter %s (name %s)", f->filename, f->name);
+
+ /* Set debug flags before calling load. */
+ set_debug_flags (dl, f->name);
+
+ /* Call the on-load callback if it exists. */
+ debug ("%s: load", f->name);
+ if (f->filter.load)
+ f->filter.load ();
+
+ return (struct backend *) f;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_INTERNAL_H
+#define NBDKIT_INTERNAL_H
+
+#include <stdbool.h>
+#include <stddef.h>
+#include <stdarg.h>
+#include <sys/socket.h>
+#include <pthread.h>
+
+#define NBDKIT_API_VERSION 2
+#include "nbdkit-plugin.h"
+#include "nbdkit-filter.h"
+
+#ifdef __APPLE__
+#define UNIX_PATH_MAX 104
+#else
+#define UNIX_PATH_MAX 108
+#endif
+
+#ifndef O_CLOEXEC
+#define O_CLOEXEC 0
+#endif
+
+#ifndef SOCK_CLOEXEC
+#define SOCK_CLOEXEC 0
+#endif
+
+#if HAVE_VALGRIND
+# include <valgrind.h>
+/* http://valgrind.org/docs/manual/faq.html#faq.unhelpful */
+# define DO_DLCLOSE !RUNNING_ON_VALGRIND
+#elif defined(__SANITIZE_ADDRESS__)
+# define DO_DLCLOSE 0
+#else
+# define DO_DLCLOSE 1
+#endif
+
+#define container_of(ptr, type, member) ({ \
+ const typeof (((type *) 0)->member) *__mptr = (ptr); \
+ (type *) ((char *) __mptr - offsetof(type, member)); \
+ })
+
+/* main.c */
+struct debug_flag {
+ struct debug_flag *next;
+ char *name; /* plugin or filter name */
+ char *flag; /* flag name */
+ int value; /* value of flag */
+ bool used; /* if flag was successfully set */
+};
+
+enum log_to {
+ LOG_TO_DEFAULT, /* --log not specified: log to stderr, unless
+ we forked into the background in which
+ case log to syslog */
+ LOG_TO_STDERR, /* --log=stderr forced on the command line */
+ LOG_TO_SYSLOG, /* --log=syslog forced on the command line */
+};
+
+extern struct debug_flag *debug_flags;
+extern const char *exportname;
+extern bool foreground;
+extern const char *ipaddr;
+extern enum log_to log_to;
+extern bool newstyle;
+extern const char *port;
+extern bool readonly;
+extern const char *run;
+extern const char *selinux_label;
+extern int threads;
+extern int tls;
+extern const char *tls_certificates_dir;
+extern const char *tls_psk;
+extern bool tls_verify_peer;
+extern char *unixsocket;
+extern const char *user, *group;
+extern bool verbose;
+
+extern struct backend *backend;
+#define for_each_backend(b) for (b = backend; b != NULL; b = b->next)
+
+/* quit.c */
+extern volatile int quit;
+extern int quit_fd;
+extern void set_up_quit_pipe (void);
+extern void handle_quit (int sig);
+extern void set_quit (void);
+
+/* signals.c */
+extern void set_up_signals (void);
+
+/* background.c */
+extern bool forked_into_background;
+extern void fork_into_background (void);
+
+/* captive.c */
+extern void run_command (void);
+
+/* socket-activation.c */
+#define FIRST_SOCKET_ACTIVATION_FD 3 /* defined by systemd ABI */
+extern unsigned int get_socket_activation (void);
+
+/* usergroup.c */
+extern void change_user (void);
+
+/* cleanup.c */
+extern void cleanup_free (void *ptr);
+#define CLEANUP_FREE __attribute__((cleanup (cleanup_free)))
+extern void cleanup_extents_free (void *ptr);
+#define CLEANUP_EXTENTS_FREE __attribute__((cleanup (cleanup_extents_free)))
+extern void cleanup_unlock (pthread_mutex_t **ptr);
+#define CLEANUP_UNLOCK __attribute__((cleanup (cleanup_unlock)))
+#define ACQUIRE_LOCK_FOR_CURRENT_SCOPE(mutex) \
+ CLEANUP_UNLOCK pthread_mutex_t *_lock = mutex; \
+ pthread_mutex_lock (_lock)
+
+/* connections.c */
+struct connection;
+
+typedef int (*connection_recv_function) (struct connection *,
+ void *buf, size_t len)
+ __attribute__((__nonnull__ (1, 2)));
+typedef int (*connection_send_function) (struct connection *,
+ const void *buf, size_t len)
+ __attribute__((__nonnull__ (1, 2)));
+typedef void (*connection_close_function) (struct connection *)
+ __attribute__((__nonnull__ (1)));
+
+struct connection {
+ pthread_mutex_t request_lock;
+ pthread_mutex_t read_lock;
+ pthread_mutex_t write_lock;
+ pthread_mutex_t status_lock;
+ int status; /* 1 for more I/O with client, 0 for shutdown, -1 on error */
+ void *crypto_session;
+ int nworkers;
+
+ void **handles;
+ size_t nr_handles;
+
+ uint32_t cflags;
+ uint64_t exportsize;
+ uint16_t eflags;
+ bool readonly;
+ bool can_flush;
+ bool is_rotational;
+ bool can_trim;
+ bool can_zero;
+ bool can_fua;
+ bool can_multi_conn;
+ bool can_extents;
+ bool using_tls;
+ bool structured_replies;
+ bool meta_context_base_allocation;
+
+ int sockin, sockout;
+ connection_recv_function recv;
+ connection_send_function send;
+ connection_close_function close;
+};
+
+extern int handle_single_connection (int sockin, int sockout);
+extern int connection_set_handle (struct connection *conn,
+ size_t i, void *handle)
+ __attribute__((__nonnull__ (1 /* not 3 */)));
+extern void *connection_get_handle (struct connection *conn, size_t i)
+ __attribute__((__nonnull__ (1)));
+extern int connection_get_status (struct connection *conn)
+ __attribute__((__nonnull__ (1)));
+extern int connection_set_status (struct connection *conn, int value)
+ __attribute__((__nonnull__ (1)));
+
+/* protocol-handshake.c */
+extern int protocol_handshake (struct connection *conn)
+ __attribute__((__nonnull__ (1)));
+extern int protocol_compute_eflags (struct connection *conn, uint16_t *flags)
+ __attribute__((__nonnull__ (1, 2)));
+
+/* protocol-handshake-oldstyle.c */
+extern int protocol_handshake_oldstyle (struct connection *conn)
+ __attribute__((__nonnull__ (1)));
+
+/* protocol-handshake-newstyle.c */
+extern int protocol_handshake_newstyle (struct connection *conn)
+ __attribute__((__nonnull__ (1)));
+
+/* protocol.c */
+extern int protocol_recv_request_send_reply (struct connection *conn)
+ __attribute__((__nonnull__ (1)));
+
+/* The context ID of base:allocation. As far as I can tell it doesn't
+ * matter what this is as long as nbdkit always returns the same
+ * number.
+ */
+#define base_allocation_id 1
+
+/* crypto.c */
+#define root_tls_certificates_dir sysconfdir "/pki/" PACKAGE_NAME
+extern void crypto_init (bool tls_set_on_cli);
+extern void crypto_free (void);
+extern int crypto_negotiate_tls (struct connection *conn,
+ int sockin, int sockout)
+ __attribute__((__nonnull__ (1)));
+
+/* debug.c */
+#define debug nbdkit_debug
+
+/* log-*.c */
+#if !HAVE_VFPRINTF_PERCENT_M
+#include <stdio.h>
+#define vfprintf nbdkit_vfprintf
+extern int nbdkit_vfprintf (FILE *f, const char *fmt, va_list args)
+ __attribute__((__format__ (printf, 2, 0)));
+#endif
+extern void log_stderr_verror (const char *fs, va_list args)
+ __attribute__((__format__ (printf, 1, 0)));
+extern void log_syslog_verror (const char *fs, va_list args)
+ __attribute__((__format__ (printf, 1, 0)));
+
+struct backend {
+ /* Next filter or plugin in the chain. This is always NULL for
+ * plugins and never NULL for filters.
+ */
+ struct backend *next;
+
+ /* A unique index used to fetch the handle from the connections
+ * object. The plugin (last in the chain) has index 0, and the
+ * filters have index 1, 2, ... depending how "far" they are from
+ * the plugin.
+ */
+ size_t i;
+
+ void (*free) (struct backend *);
+ int (*thread_model) (struct backend *);
+ const char *(*name) (struct backend *);
+ const char *(*plugin_name) (struct backend *);
+ void (*usage) (struct backend *);
+ const char *(*version) (struct backend *);
+ void (*dump_fields) (struct backend *);
+ void (*config) (struct backend *, const char *key, const char *value);
+ void (*config_complete) (struct backend *);
+ const char *(*magic_config_key) (struct backend *);
+ int (*open) (struct backend *, struct connection *conn, int readonly);
+ int (*prepare) (struct backend *, struct connection *conn);
+ int (*finalize) (struct backend *, struct connection *conn);
+ void (*close) (struct backend *, struct connection *conn);
+
+ int64_t (*get_size) (struct backend *, struct connection *conn);
+ int (*can_write) (struct backend *, struct connection *conn);
+ int (*can_flush) (struct backend *, struct connection *conn);
+ int (*is_rotational) (struct backend *, struct connection *conn);
+ int (*can_trim) (struct backend *, struct connection *conn);
+ int (*can_zero) (struct backend *, struct connection *conn);
+ int (*can_extents) (struct backend *, struct connection *conn);
+ int (*can_fua) (struct backend *, struct connection *conn);
+ int (*can_multi_conn) (struct backend *, struct connection *conn);
+
+ int (*pread) (struct backend *, struct connection *conn, void *buf,
+ uint32_t count, uint64_t offset, uint32_t flags, int *err);
+ int (*pwrite) (struct backend *, struct connection *conn, const void *buf,
+ uint32_t count, uint64_t offset, uint32_t flags, int *err);
+ int (*flush) (struct backend *, struct connection *conn, uint32_t flags,
+ int *err);
+ int (*trim) (struct backend *, struct connection *conn, uint32_t count,
+ uint64_t offset, uint32_t flags, int *err);
+ int (*zero) (struct backend *, struct connection *conn, uint32_t count,
+ uint64_t offset, uint32_t flags, int *err);
+ int (*extents) (struct backend *, struct connection *conn, uint32_t count,
+ uint64_t offset, uint32_t flags,
+ struct nbdkit_extents *extents, int *err);
+};
+
+/* plugins.c */
+extern struct backend *plugin_register (size_t index, const char *filename,
+ void *dl, struct nbdkit_plugin *(*plugin_init) (void))
+ __attribute__((__nonnull__ (2, 3, 4)));
+extern void set_debug_flags (void *dl, const char *name)
+ __attribute__((__nonnull__ (1, 2)));
+
+/* filters.c */
+extern struct backend *filter_register (struct backend *next, size_t index,
+ const char *filename, void *dl,
+ struct nbdkit_filter *(*filter_init) (void))
+ __attribute__((__nonnull__ (1, 3, 4, 5)));
+
+/* locks.c */
+extern void lock_init_thread_model (void);
+extern void lock_connection (void);
+extern void unlock_connection (void);
+extern void lock_request (struct connection *conn)
+ __attribute__((__nonnull__ (1)));
+extern void unlock_request (struct connection *conn)
+ __attribute__((__nonnull__ (1)));
+extern void lock_unload (void);
+extern void unlock_unload (void);
+
+/* sockets.c */
+extern int *bind_unix_socket (size_t *)
+ __attribute__((__nonnull__ (1)));
+extern int *bind_tcpip_socket (size_t *)
+ __attribute__((__nonnull__ (1)));
+extern void accept_incoming_connections (int *socks, size_t nr_socks)
+ __attribute__((__nonnull__ (1)));
+extern void free_listening_sockets (int *socks, size_t nr_socks)
+ __attribute__((__nonnull__ (1)));
+
+/* threadlocal.c */
+extern void threadlocal_init (void);
+extern void threadlocal_new_server_thread (void);
+extern void threadlocal_set_name (const char *name)
+ __attribute__((__nonnull__ (1)));
+extern const char *threadlocal_get_name (void);
+extern void threadlocal_set_instance_num (size_t instance_num);
+extern size_t threadlocal_get_instance_num (void);
+extern void threadlocal_set_sockaddr (const struct sockaddr *addr,
+ socklen_t addrlen)
+ __attribute__((__nonnull__ (1)));
+/*extern void threadlocal_get_sockaddr ();*/
+extern void threadlocal_set_error (int err);
+extern int threadlocal_get_error (void);
+extern void *threadlocal_buffer (size_t size);
+
+/* Declare program_name. */
+#if HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME == 1
+#include <errno.h>
+#define program_name program_invocation_short_name
+#else
+#define program_name "nbdkit"
+#endif
+
+#endif /* NBDKIT_INTERNAL_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+
+#include "internal.h"
+
+/* Note that the plugin's thread model cannot change after being
+ * loaded, so caching it here is safe.
+ */
+static int thread_model;
+
+static pthread_mutex_t connection_lock = PTHREAD_MUTEX_INITIALIZER;
+static pthread_mutex_t all_requests_lock = PTHREAD_MUTEX_INITIALIZER;
+static pthread_rwlock_t unload_prevention_lock = PTHREAD_RWLOCK_INITIALIZER;
+
+void
+lock_init_thread_model (void)
+{
+ thread_model = backend->thread_model (backend);
+}
+
+void
+lock_connection (void)
+{
+ if (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS)
+ pthread_mutex_lock (&connection_lock);
+}
+
+void
+unlock_connection (void)
+{
+ if (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS)
+ pthread_mutex_unlock (&connection_lock);
+}
+
+void
+lock_request (struct connection *conn)
+{
+ if (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS)
+ pthread_mutex_lock (&all_requests_lock);
+
+ if (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS)
+ pthread_mutex_lock (&conn->request_lock);
+
+ pthread_rwlock_rdlock (&unload_prevention_lock);
+}
+
+void
+unlock_request (struct connection *conn)
+{
+ pthread_rwlock_unlock (&unload_prevention_lock);
+
+ if (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS)
+ pthread_mutex_unlock (&conn->request_lock);
+
+ if (thread_model <= NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS)
+ pthread_mutex_unlock (&all_requests_lock);
+}
+
+void
+lock_unload (void)
+{
+ pthread_rwlock_wrlock (&unload_prevention_lock);
+}
+
+void
+unlock_unload (void)
+{
+ pthread_rwlock_unlock (&unload_prevention_lock);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+
+#include "internal.h"
+
+/* Note: preserves the previous value of errno. */
+void
+log_stderr_verror (const char *fs, va_list args)
+{
+ int err = errno; /* must be first line of function */
+
+ const char *name = threadlocal_get_name ();
+ size_t instance_num = threadlocal_get_instance_num ();
+ int tty;
+
+ flockfile (stderr);
+ tty = isatty (fileno (stderr));
+ if (tty) fputs ("\033[1;31m", stderr);
+
+ fprintf (stderr, "%s: ", program_name);
+
+ if (name) {
+ fprintf (stderr, "%s", name);
+ if (instance_num > 0)
+ fprintf (stderr, "[%zu]", instance_num);
+ fprintf (stderr, ": ");
+ }
+
+ fprintf (stderr, "error: ");
+ errno = err; /* must restore in case fs contains %m */
+ vfprintf (stderr, fs, args);
+ fprintf (stderr, "\n");
+
+ if (tty) fputs ("\033[0m", stderr);
+
+ funlockfile (stderr);
+
+ errno = err; /* must be last line of function */
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <errno.h>
+#include <syslog.h>
+
+#include "internal.h"
+
+/* Tempted to use LOG_FTP instead of LOG_DAEMON! */
+static const int PRIORITY = LOG_DAEMON|LOG_ERR;
+
+/* Note: preserves the previous value of errno. */
+void
+log_syslog_verror (const char *fs, va_list args)
+{
+ int err = errno;
+ const char *name = threadlocal_get_name ();
+ size_t instance_num = threadlocal_get_instance_num ();
+ CLEANUP_FREE char *msg = NULL;
+ size_t len = 0;
+ FILE *fp = NULL;
+
+ fp = open_memstream (&msg, &len);
+ if (fp == NULL) {
+ /* Fallback to logging using fs, args directly. */
+ errno = err; /* Must restore in case fs contains %m */
+ vsyslog (PRIORITY, fs, args);
+ goto out;
+ }
+
+ if (name) {
+ fprintf (fp, "%s", name);
+ if (instance_num > 0)
+ fprintf (fp, "[%zu]", instance_num);
+ fprintf (fp, ": ");
+ }
+
+ errno = err; /* Must restore in case fs contains %m */
+ vfprintf (fp, fs, args);
+ fclose (fp);
+
+ syslog (PRIORITY, "%s", msg);
+
+ out:
+ errno = err;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <errno.h>
+
+#include "internal.h"
+
+/* Call the right nbdkit_verror function depending on log_sink.
+ * Note: preserves the previous value of errno.
+ */
+void
+nbdkit_verror (const char *fs, va_list args)
+{
+ switch (log_to) {
+ case LOG_TO_DEFAULT:
+ if (forked_into_background)
+ log_syslog_verror (fs, args);
+ else
+ log_stderr_verror (fs, args);
+ break;
+ case LOG_TO_SYSLOG:
+ log_syslog_verror (fs, args);
+ break;
+ case LOG_TO_STDERR:
+ log_stderr_verror (fs, args);
+ break;
+ }
+}
+
+/* Wrapper around nbdkit_verror.
+ * Note: preserves the previous value of errno.
+ */
+void
+nbdkit_error (const char *fs, ...)
+{
+ va_list args;
+
+ va_start (args, fs);
+ nbdkit_verror (fs, args);
+ va_end (args);
+}
+
+#if !HAVE_VFPRINTF_PERCENT_M
+/* Work around lack of %m in BSD */
+#undef vfprintf
+
+/* Call the real vfprintf after first changing %m into strerror(errno). */
+int
+nbdkit_vfprintf(FILE *f, const char *fmt, va_list args)
+{
+ char *repl = NULL;
+ char *p = strstr (fmt, "%m"); /* assume strstr doesn't touch errno */
+ int ret;
+
+ /* We only handle the first %m; if a user passes more than one, they
+ * deserve broken output.
+ */
+ if (p && asprintf (&repl, "%.*s%s%s", (int) (p - fmt), fmt, strerror (errno),
+ p + 2) > 0)
+ fmt = repl;
+ ret = vfprintf (f, fmt, args);
+ free (repl);
+ return ret;
+}
+#endif
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <limits.h>
+#include <errno.h>
+#include <assert.h>
+#include <syslog.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <pthread.h>
+
+#include <dlfcn.h>
+
+#include "internal.h"
+#include "options.h"
+#include "exit-with-parent.h"
+
+static char *make_random_fifo (void);
+static struct backend *open_plugin_so (size_t i, const char *filename, int short_name);
+static struct backend *open_filter_so (struct backend *next, size_t i, const char *filename, int short_name);
+static void start_serving (void);
+static void write_pidfile (void);
+static bool is_config_key (const char *key, size_t len);
+
+struct debug_flag *debug_flags; /* -D */
+bool exit_with_parent; /* --exit-with-parent */
+const char *exportname; /* -e */
+bool foreground; /* -f */
+const char *ipaddr; /* -i */
+enum log_to log_to = LOG_TO_DEFAULT; /* --log */
+bool newstyle = true; /* false = -o, true = -n */
+char *pidfile; /* -P */
+const char *port; /* -p */
+bool readonly; /* -r */
+const char *run; /* --run */
+bool listen_stdin; /* -s */
+const char *selinux_label; /* --selinux-label */
+int threads; /* -t */
+int tls; /* --tls : 0=off 1=on 2=require */
+const char *tls_certificates_dir; /* --tls-certificates */
+const char *tls_psk; /* --tls-psk */
+bool tls_verify_peer; /* --tls-verify-peer */
+char *unixsocket; /* -U */
+const char *user, *group; /* -u & -g */
+bool verbose; /* -v */
+unsigned int socket_activation /* $LISTEN_FDS and $LISTEN_PID set */;
+
+/* The currently loaded plugin. */
+struct backend *backend;
+
+static char *random_fifo_dir = NULL;
+static char *random_fifo = NULL;
+
+static void
+usage (void)
+{
+ /* --{short,long}-options remain undocumented */
+ printf (
+#include "synopsis.c"
+ );
+ printf ("\n"
+ "Please read the nbdkit(1) manual page for full usage.\n");
+}
+
+static void
+display_version (void)
+{
+ printf ("%s %s\n", PACKAGE_NAME, PACKAGE_VERSION);
+}
+
+static void
+dump_config (void)
+{
+ printf ("%s=%s\n", "bindir", bindir);
+ printf ("%s=%s\n", "filterdir", filterdir);
+ printf ("%s=%s\n", "libdir", libdir);
+ printf ("%s=%s\n", "mandir", mandir);
+ printf ("%s=%s\n", "name", PACKAGE_NAME);
+ printf ("%s=%s\n", "plugindir", plugindir);
+ printf ("%s=%s\n", "root_tls_certificates_dir", root_tls_certificates_dir);
+ printf ("%s=%s\n", "sbindir", sbindir);
+#ifdef HAVE_LIBSELINUX
+ printf ("selinux=yes\n");
+#else
+ printf ("selinux=no\n");
+#endif
+ printf ("%s=%s\n", "sysconfdir", sysconfdir);
+#ifdef HAVE_GNUTLS
+ printf ("tls=yes\n");
+#else
+ printf ("tls=no\n");
+#endif
+ printf ("%s=%s\n", "version", PACKAGE_VERSION);
+}
+
+int
+main (int argc, char *argv[])
+{
+ int c;
+ bool help = false, version = false, dump_plugin = false;
+ int tls_set_on_cli = false;
+ int short_name;
+ const char *filename;
+ char *p;
+ static struct filter_filename {
+ struct filter_filename *next;
+ const char *filename;
+ } *filter_filenames = NULL;
+ size_t i;
+ const char *magic_config_key;
+
+ threadlocal_init ();
+
+ /* The default setting for TLS depends on whether we were
+ * compiled with GnuTLS.
+ */
+#ifdef HAVE_GNUTLS
+ tls = 1;
+#else
+ tls = 0;
+#endif
+
+ /* Returns 0 if no socket activation, or the number of FDs. */
+ socket_activation = get_socket_activation ();
+
+ for (;;) {
+ c = getopt_long (argc, argv, short_options, long_options, NULL);
+ if (c == -1)
+ break;
+
+ switch (c) {
+ case 'D':
+ {
+ const char *p, *q;
+ struct debug_flag *flag;
+
+ /* Debug Flag must be "NAME.FLAG=N".
+ * ^ ^ ^
+ * optarg p q (after +1 adjustment below)
+ */
+ p = strchr (optarg, '.');
+ q = strchr (optarg, '=');
+ if (p == NULL || q == NULL) {
+ bad_debug_flag:
+ fprintf (stderr,
+ "%s: -D (Debug Flag) must have the format NAME.FLAG=N\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+ p++; /* +1 adjustment */
+ q++;
+
+ if (p - optarg <= 1) goto bad_debug_flag; /* NAME too short */
+ if (p > q) goto bad_debug_flag;
+ if (q - p <= 1) goto bad_debug_flag; /* FLAG too short */
+ if (*q == '\0') goto bad_debug_flag; /* N too short */
+
+ flag = malloc (sizeof *flag);
+ if (flag == NULL) {
+ debug_flag_perror:
+ perror ("malloc");
+ exit (EXIT_FAILURE);
+ }
+ flag->name = strndup (optarg, p-optarg-1);
+ if (!flag->name) goto debug_flag_perror;
+ flag->flag = strndup (p, q-p-1);
+ if (!flag->flag) goto debug_flag_perror;
+ if (sscanf (q, "%d", &flag->value) != 1) goto bad_debug_flag;
+ flag->used = false;
+
+ /* Add flag to the linked list. */
+ flag->next = debug_flags;
+ debug_flags = flag;
+ }
+ break;
+
+ case DUMP_CONFIG_OPTION:
+ dump_config ();
+ exit (EXIT_SUCCESS);
+
+ case DUMP_PLUGIN_OPTION:
+ dump_plugin = true;
+ break;
+
+ case EXIT_WITH_PARENT_OPTION:
+#ifdef HAVE_EXIT_WITH_PARENT
+ exit_with_parent = true;
+ foreground = true;
+ break;
+#else
+ fprintf (stderr,
+ "%s: --exit-with-parent is not implemented "
+ "for this operating system\n",
+ program_name);
+ exit (EXIT_FAILURE);
+#endif
+
+ case FILTER_OPTION:
+ {
+ struct filter_filename *t;
+
+ t = malloc (sizeof *t);
+ if (t == NULL) {
+ perror ("malloc");
+ exit (EXIT_FAILURE);
+ }
+ t->next = filter_filenames;
+ t->filename = optarg;
+ filter_filenames = t;
+ }
+ break;
+
+ case LOG_OPTION:
+ if (strcmp (optarg, "stderr") == 0)
+ log_to = LOG_TO_STDERR;
+ else if (strcmp (optarg, "syslog") == 0)
+ log_to = LOG_TO_SYSLOG;
+ else {
+ fprintf (stderr, "%s: --log must be \"stderr\" or \"syslog\"\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+ break;
+
+ case LONG_OPTIONS_OPTION:
+ for (i = 0; long_options[i].name != NULL; ++i) {
+ if (strcmp (long_options[i].name, "long-options") != 0 &&
+ strcmp (long_options[i].name, "short-options") != 0)
+ printf ("--%s\n", long_options[i].name);
+ }
+ exit (EXIT_SUCCESS);
+
+ case RUN_OPTION:
+ if (socket_activation) {
+ fprintf (stderr, "%s: cannot use socket activation with --run flag\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+ run = optarg;
+ foreground = true;
+ break;
+
+ case SELINUX_LABEL_OPTION:
+ selinux_label = optarg;
+ break;
+
+ case SHORT_OPTIONS_OPTION:
+ for (i = 0; short_options[i]; ++i) {
+ if (short_options[i] != ':')
+ printf ("-%c\n", short_options[i]);
+ }
+ exit (EXIT_SUCCESS);
+
+ case TLS_OPTION:
+ tls_set_on_cli = true;
+ if (strcasecmp (optarg, "require") == 0 ||
+ strcasecmp (optarg, "required") == 0 ||
+ strcasecmp (optarg, "force") == 0)
+ tls = 2;
+ else {
+ tls = nbdkit_parse_bool (optarg);
+ if (tls == -1)
+ exit (EXIT_FAILURE);
+ }
+ break;
+
+ case TLS_CERTIFICATES_OPTION:
+ tls_certificates_dir = optarg;
+ break;
+
+ case TLS_PSK_OPTION:
+ tls_psk = optarg;
+ break;
+
+ case TLS_VERIFY_PEER_OPTION:
+ tls_verify_peer = true;
+ break;
+
+ case 'e':
+ exportname = optarg;
+ newstyle = true;
+ break;
+
+ case 'f':
+ foreground = true;
+ break;
+
+ case 'g':
+ group = optarg;
+ break;
+
+ case 'i':
+ if (socket_activation) {
+ fprintf (stderr, "%s: cannot use socket activation with -i flag\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+ ipaddr = optarg;
+ break;
+
+ case 'n':
+ newstyle = true;
+ break;
+
+ case 'o':
+ newstyle = false;
+ break;
+
+ case 'P':
+ pidfile = nbdkit_absolute_path (optarg);
+ if (pidfile == NULL)
+ exit (EXIT_FAILURE);
+ break;
+
+ case 'p':
+ if (socket_activation) {
+ fprintf (stderr, "%s: cannot use socket activation with -p flag\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+ port = optarg;
+ break;
+
+ case 'r':
+ readonly = true;
+ break;
+
+ case 's':
+ if (socket_activation) {
+ fprintf (stderr, "%s: cannot use socket activation with -s flag\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+ listen_stdin = true;
+ break;
+
+ case 't':
+ {
+ char *end;
+
+ errno = 0;
+ threads = strtoul (optarg, &end, 0);
+ if (errno || *end) {
+ fprintf (stderr, "%s: cannot parse '%s' into threads\n",
+ program_name, optarg);
+ exit (EXIT_FAILURE);
+ }
+ /* XXX Worth a maximimum limit on threads? */
+ }
+ break;
+
+ case 'U':
+ if (socket_activation) {
+ fprintf (stderr, "%s: cannot use socket activation with -U flag\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+ if (strcmp (optarg, "-") == 0)
+ unixsocket = make_random_fifo ();
+ else
+ unixsocket = nbdkit_absolute_path (optarg);
+ if (unixsocket == NULL)
+ exit (EXIT_FAILURE);
+ break;
+
+ case 'u':
+ user = optarg;
+ break;
+
+ case 'v':
+ verbose = true;
+ break;
+
+ case 'V':
+ version = true;
+ break;
+
+ case HELP_OPTION:
+ help = true;
+ break;
+
+ default:
+ usage ();
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ /* No extra parameters. */
+ if (optind >= argc) {
+ if (help) {
+ usage ();
+ exit (EXIT_SUCCESS);
+ }
+ if (version) {
+ display_version ();
+ exit (EXIT_SUCCESS);
+ }
+ if (dump_plugin) {
+ /* Incorrect use of --dump-plugin. */
+ fprintf (stderr,
+ "%s: use 'nbdkit plugin --dump-plugin' or\n"
+ "'nbdkit /path/to/plugin.so --dump-plugin'\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ /* Otherwise this is an error. */
+ fprintf (stderr,
+ "%s: no plugins given on the command line.\n"
+ "Use '%s --help' or "
+ "read the nbdkit(1) manual page for documentation.\n",
+ program_name, program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ /* Oldstyle protocol + exportname not allowed. */
+ if (!newstyle && exportname != NULL) {
+ fprintf (stderr,
+ "%s: cannot use oldstyle protocol (-o) and exportname (-e)\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ /* If exportname was not set on the command line, use "". */
+ if (exportname == NULL)
+ exportname = "";
+
+ /* --tls=require and oldstyle won't work. */
+ if (tls == 2 && !newstyle) {
+ fprintf (stderr,
+ "%s: cannot use oldstyle protocol (-o) and require TLS\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ /* Set the umask to a known value. This makes the behaviour of
+ * plugins when creating files more predictable, and also removes an
+ * implicit dependency on umask when calling mkstemp(3).
+ */
+ umask (0022);
+
+ /* If we will or might use syslog. */
+ if (log_to == LOG_TO_SYSLOG || log_to == LOG_TO_DEFAULT)
+ openlog (program_name, LOG_PID, 0);
+
+ /* Initialize TLS. */
+ crypto_init (tls_set_on_cli);
+ assert (tls != -1);
+
+ /* Implement --exit-with-parent early in case plugin initialization
+ * takes a long time and the parent exits during that time.
+ */
+#ifdef HAVE_EXIT_WITH_PARENT
+ if (exit_with_parent) {
+ if (set_exit_with_parent () == -1) {
+ perror ("nbdkit: --exit-with-parent");
+ exit (EXIT_FAILURE);
+ }
+ }
+#endif
+
+ /* The remaining command line arguments are the plugin name and
+ * parameters. If --help, --version or --dump-plugin were specified
+ * then we open the plugin so that we can display the per-plugin
+ * help/version/plugin information.
+ */
+ filename = argv[optind++];
+ short_name = is_short_name (filename);
+
+ /* Is there an executable script located in the plugindir?
+ * If so we simply execute it with the current command line.
+ */
+ if (short_name) {
+ size_t i;
+ struct stat statbuf;
+ CLEANUP_FREE char *script;
+
+ if (asprintf (&script,
+ "%s/nbdkit-%s-plugin", plugindir, filename) == -1) {
+ perror ("asprintf");
+ exit (EXIT_FAILURE);
+ }
+
+ if (stat (script, &statbuf) == 0 &&
+ (statbuf.st_mode & S_IXUSR) != 0) {
+ /* We're going to execute the plugin directly.
+ * Replace argv[0] with argv[optind-1] and move further arguments
+ * down the list.
+ */
+ argv[0] = argv[optind-1];
+ for (i = optind; i <= argc; i++)
+ argv[i-1] = argv[i];
+ execv (script, argv);
+ perror (script);
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ /* Open the plugin (first) and then wrap the plugin with the
+ * filters. The filters are wrapped in reverse order that they
+ * appear on the command line so that in the end ‘backend’ points to
+ * the first filter on the command line.
+ */
+ backend = open_plugin_so (0, filename, short_name);
+ i = 1;
+ while (filter_filenames) {
+ struct filter_filename *t = filter_filenames;
+ const char *filename = t->filename;
+ int short_name = is_short_name (filename);
+
+ backend = open_filter_so (backend, i++, filename, short_name);
+
+ filter_filenames = t->next;
+ free (t);
+ }
+
+ /* Check all debug flags were used, and free them. */
+ while (debug_flags != NULL) {
+ struct debug_flag *next = debug_flags->next;
+
+ if (!debug_flags->used) {
+ fprintf (stderr, "%s: debug flag -D %s.%s was not used\n",
+ program_name, debug_flags->name, debug_flags->flag);
+ exit (EXIT_FAILURE);
+ }
+ free (debug_flags->name);
+ free (debug_flags->flag);
+ free (debug_flags);
+ debug_flags = next;
+ }
+
+ /* Select a thread model. */
+ lock_init_thread_model ();
+
+ if (help) {
+ struct backend *b;
+
+ usage ();
+ for_each_backend (b) {
+ printf ("\n");
+ b->usage (b);
+ }
+ backend->free (backend);
+ exit (EXIT_SUCCESS);
+ }
+
+ if (version) {
+ const char *v;
+ struct backend *b;
+
+ display_version ();
+ for_each_backend (b) {
+ printf ("%s", b->name (b));
+ if ((v = b->version (b)) != NULL)
+ printf (" %s", v);
+ printf ("\n");
+ }
+ backend->free (backend);
+ exit (EXIT_SUCCESS);
+ }
+
+ /* Call config and config_complete to parse the parameters.
+ *
+ * If the plugin provides magic_config_key then any "bare" values
+ * (ones not containing "=") are prefixed with this key.
+ *
+ * For backwards compatibility with old plugins, and to support
+ * scripting languages, if magic_config_key == NULL then if the
+ * first parameter is bare it is prefixed with the key "script", and
+ * any other bare parameters are errors.
+ */
+ magic_config_key = backend->magic_config_key (backend);
+ for (i = 0; optind < argc; ++i, ++optind) {
+ p = strchr (argv[optind], '=');
+ if (p && is_config_key (argv[optind], p - argv[optind])) { /* key=value */
+ *p = '\0';
+ backend->config (backend, argv[optind], p+1);
+ }
+ else if (magic_config_key == NULL) {
+ if (i == 0) /* magic script parameter */
+ backend->config (backend, "script", argv[optind]);
+ else {
+ fprintf (stderr,
+ "%s: expecting key=value on the command line but got: %s\n",
+ program_name, argv[optind]);
+ exit (EXIT_FAILURE);
+ }
+ }
+ else { /* magic config key */
+ backend->config (backend, magic_config_key, argv[optind]);
+ }
+ }
+
+ /* This must run after parsing the parameters so that the script can
+ * be loaded for scripting languages. But it must be called before
+ * config_complete so that the plugin doesn't check for missing
+ * parameters.
+ */
+ if (dump_plugin) {
+ backend->dump_fields (backend);
+ backend->free (backend);
+ exit (EXIT_SUCCESS);
+ }
+
+ backend->config_complete (backend);
+
+ start_serving ();
+
+ backend->free (backend);
+ backend = NULL;
+
+ free (unixsocket);
+ free (pidfile);
+
+ if (random_fifo) {
+ unlink (random_fifo);
+ free (random_fifo);
+ }
+
+ if (random_fifo_dir) {
+ rmdir (random_fifo_dir);
+ free (random_fifo_dir);
+ }
+
+ crypto_free ();
+
+ exit (EXIT_SUCCESS);
+}
+
+/* Implementation of '-U -' */
+static char *
+make_random_fifo (void)
+{
+ char template[] = "/tmp/nbdkitXXXXXX";
+ char *unixsocket;
+
+ if (mkdtemp (template) == NULL) {
+ perror ("mkdtemp");
+ return NULL;
+ }
+
+ random_fifo_dir = strdup (template);
+ if (random_fifo_dir == NULL) {
+ perror ("strdup");
+ return NULL;
+ }
+
+ if (asprintf (&random_fifo, "%s/socket", template) == -1) {
+ perror ("asprintf");
+ return NULL;
+ }
+
+ unixsocket = strdup (random_fifo);
+ if (unixsocket == NULL) {
+ perror ("strdup");
+ return NULL;
+ }
+
+ return unixsocket;
+}
+
+static struct backend *
+open_plugin_so (size_t i, const char *name, int short_name)
+{
+ struct backend *ret;
+ char *filename = (char *) name;
+ bool free_filename = false;
+ void *dl;
+ struct nbdkit_plugin *(*plugin_init) (void);
+ char *error;
+
+ if (short_name) {
+ /* Short names are rewritten relative to the plugindir. */
+ if (asprintf (&filename,
+ "%s/nbdkit-%s-plugin.so", plugindir, name) == -1) {
+ perror ("asprintf");
+ exit (EXIT_FAILURE);
+ }
+ free_filename = true;
+ }
+
+ dl = dlopen (filename, RTLD_NOW|RTLD_GLOBAL);
+ if (dl == NULL) {
+ fprintf (stderr,
+ "%s: error: cannot open plugin '%s': %s\n"
+ "Use '%s --help' or "
+ "read the nbdkit(1) manual page for documentation.\n",
+ program_name, name, dlerror (),
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ /* Initialize the plugin. See dlopen(3) to understand C weirdness. */
+ dlerror ();
+ *(void **) (&plugin_init) = dlsym (dl, "plugin_init");
+ if ((error = dlerror ()) != NULL) {
+ fprintf (stderr, "%s: %s: %s\n", program_name, name, error);
+ exit (EXIT_FAILURE);
+ }
+ if (!plugin_init) {
+ fprintf (stderr, "%s: %s: invalid plugin_init\n", program_name, name);
+ exit (EXIT_FAILURE);
+ }
+
+ /* Register the plugin. */
+ ret = plugin_register (i, filename, dl, plugin_init);
+
+ if (free_filename)
+ free (filename);
+
+ return ret;
+}
+
+static struct backend *
+open_filter_so (struct backend *next, size_t i,
+ const char *name, int short_name)
+{
+ struct backend *ret;
+ char *filename = (char *) name;
+ bool free_filename = false;
+ void *dl;
+ struct nbdkit_filter *(*filter_init) (void);
+ char *error;
+
+ if (short_name) {
+ /* Short names are rewritten relative to the filterdir. */
+ if (asprintf (&filename,
+ "%s/nbdkit-%s-filter.so", filterdir, name) == -1) {
+ perror ("asprintf");
+ exit (EXIT_FAILURE);
+ }
+ free_filename = true;
+ }
+
+ dl = dlopen (filename, RTLD_NOW|RTLD_GLOBAL);
+ if (dl == NULL) {
+ fprintf (stderr, "%s: error: cannot open filter '%s': %s\n",
+ program_name, name, dlerror ());
+ exit (EXIT_FAILURE);
+ }
+
+ /* Initialize the filter. See dlopen(3) to understand C weirdness. */
+ dlerror ();
+ *(void **) (&filter_init) = dlsym (dl, "filter_init");
+ if ((error = dlerror ()) != NULL) {
+ fprintf (stderr, "%s: %s: %s\n", program_name, name, error);
+ exit (EXIT_FAILURE);
+ }
+ if (!filter_init) {
+ fprintf (stderr, "%s: %s: invalid filter_init\n", program_name, name);
+ exit (EXIT_FAILURE);
+ }
+
+ /* Register the filter. */
+ ret = filter_register (next, i, filename, dl, filter_init);
+
+ if (free_filename)
+ free (filename);
+
+ return ret;
+}
+
+static void
+start_serving (void)
+{
+ int *socks;
+ size_t nr_socks;
+ size_t i;
+
+ /* If the user has mixed up -p/-U/-s options, then give an error.
+ *
+ * XXX Actually the server could easily be extended to handle both
+ * TCP/IP and Unix sockets, or even multiple TCP/IP ports.
+ */
+ if ((port && unixsocket) || (port && listen_stdin) ||
+ (unixsocket && listen_stdin) || (listen_stdin && run)) {
+ fprintf (stderr,
+ "%s: -p, -U and -s options cannot appear at the same time\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ set_up_quit_pipe ();
+ set_up_signals ();
+
+ /* Socket activation -- we are handling connections on pre-opened
+ * file descriptors [FIRST_SOCKET_ACTIVATION_FD ..
+ * FIRST_SOCKET_ACTIVATION_FD+nr_socks-1].
+ */
+ if (socket_activation) {
+ nr_socks = socket_activation;
+ debug ("using socket activation, nr_socks = %zu", nr_socks);
+ socks = malloc (sizeof (int) * nr_socks);
+ if (socks == NULL) {
+ perror ("malloc");
+ exit (EXIT_FAILURE);
+ }
+ for (i = 0; i < nr_socks; ++i)
+ socks[i] = FIRST_SOCKET_ACTIVATION_FD + i;
+ change_user ();
+ write_pidfile ();
+ accept_incoming_connections (socks, nr_socks);
+ free_listening_sockets (socks, nr_socks); /* also closes them */
+ return;
+ }
+
+ /* Handling a single connection on stdin/stdout. */
+ if (listen_stdin) {
+ change_user ();
+ write_pidfile ();
+ threadlocal_new_server_thread ();
+ if (handle_single_connection (0, 1) == -1)
+ exit (EXIT_FAILURE);
+ return;
+ }
+
+ /* Handling multiple connections on TCP/IP or a Unix domain socket. */
+ if (unixsocket)
+ socks = bind_unix_socket (&nr_socks);
+ else
+ socks = bind_tcpip_socket (&nr_socks);
+
+ run_command ();
+ change_user ();
+ fork_into_background ();
+ write_pidfile ();
+ accept_incoming_connections (socks, nr_socks);
+ free_listening_sockets (socks, nr_socks);
+}
+
+static void
+write_pidfile (void)
+{
+ int fd;
+ pid_t pid;
+ char pidstr[64];
+ size_t len;
+
+ if (!pidfile)
+ return;
+
+ pid = getpid ();
+ snprintf (pidstr, sizeof pidstr, "%d\n", pid);
+ len = strlen (pidstr);
+
+ fd = open (pidfile, O_WRONLY|O_TRUNC|O_CREAT|O_CLOEXEC|O_NOCTTY, 0644);
+ if (fd == -1) {
+ perror (pidfile);
+ exit (EXIT_FAILURE);
+ }
+
+ if (write (fd, pidstr, len) < len ||
+ close (fd) == -1) {
+ perror (pidfile);
+ exit (EXIT_FAILURE);
+ }
+
+ debug ("written pidfile %s", pidfile);
+}
+
+/* When parsing plugin and filter config key=value from the command
+ * line, is the key a simple alphanumeric with period, underscore or
+ * dash?
+ */
+static bool
+is_config_key (const char *key, size_t len)
+{
+ static const char allowed_first[] =
+ "abcdefghijklmnopqrstuvwxyz"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+ static const char allowed[] =
+ "._-"
+ "0123456789"
+ "abcdefghijklmnopqrstuvwxyz"
+ "ABCDEFGHIJKLMNOPQRSTUVWXYZ";
+
+ if (len == 0)
+ return false;
+
+ if (strchr (allowed_first, key[0]) == NULL)
+ return false;
+
+ /* This works in context of the caller since key[len] == '='. */
+ if (strspn (key, allowed) != len)
+ return false;
+
+ return true;
+}
--- /dev/null
+prefix=@prefix@
+exec_prefix=@exec_prefix@
+libdir=@libdir@
+includedir=@includedir@
+plugindir=@libdir@/nbdkit/plugins
+filterdir=@libdir@/nbdkit/filters
+
+Name: @PACKAGE_NAME@
+Version: @PACKAGE_VERSION@
+Description: A toolkit for creating NBD servers
+Requires:
+Cflags:
+# There is no library that NBD plugins have to be linked against.
+# All symbols like 'nbdkit_error' are provided by the main nbdkit
+# server binary when the plugin is loaded. So this is empty.
+Libs:
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# This linker script controls the visibility of symbols in the final
+# nbdkit binary. We want to export some symbols to plugins, but at
+# the same time we don't want plugins to be able to call arbitrary
+# functions from nbdkit, so this script lists only the symbols we want
+# to export.
+
+{
+ # The functions we want plugins and filters to call.
+ global:
+ nbdkit_absolute_path;
+ nbdkit_add_extent;
+ nbdkit_debug;
+ nbdkit_error;
+ nbdkit_extents_count;
+ nbdkit_extents_free;
+ nbdkit_extents_new;
+ nbdkit_get_extent;
+ nbdkit_parse_bool;
+ nbdkit_parse_size;
+ nbdkit_read_password;
+ nbdkit_realpath;
+ nbdkit_set_error;
+ nbdkit_vdebug;
+ nbdkit_verror;
+
+ # Everything else is hidden.
+ local: *;
+};
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_OPTIONS_H
+#define NBDKIT_OPTIONS_H
+
+#include <stdbool.h>
+#include <getopt.h>
+#include <limits.h>
+#include <string.h>
+
+enum {
+ HELP_OPTION = CHAR_MAX + 1,
+ DUMP_CONFIG_OPTION,
+ DUMP_PLUGIN_OPTION,
+ EXIT_WITH_PARENT_OPTION,
+ FILTER_OPTION,
+ LOG_OPTION,
+ LONG_OPTIONS_OPTION,
+ RUN_OPTION,
+ SELINUX_LABEL_OPTION,
+ SHORT_OPTIONS_OPTION,
+ TLS_OPTION,
+ TLS_CERTIFICATES_OPTION,
+ TLS_PSK_OPTION,
+ TLS_VERIFY_PEER_OPTION,
+};
+
+static const char *short_options = "D:e:fg:i:nop:P:rst:u:U:vV";
+static const struct option long_options[] = {
+ { "debug", required_argument, NULL, 'D' },
+ { "dump-config", no_argument, NULL, DUMP_CONFIG_OPTION },
+ { "dump-plugin", no_argument, NULL, DUMP_PLUGIN_OPTION },
+ { "exit-with-parent", no_argument, NULL, EXIT_WITH_PARENT_OPTION },
+ { "export", required_argument, NULL, 'e' },
+ { "export-name", required_argument, NULL, 'e' },
+ { "exportname", required_argument, NULL, 'e' },
+ { "filter", required_argument, NULL, FILTER_OPTION },
+ { "foreground", no_argument, NULL, 'f' },
+ { "no-fork", no_argument, NULL, 'f' },
+ { "group", required_argument, NULL, 'g' },
+ { "help", no_argument, NULL, HELP_OPTION },
+ { "ip-addr", required_argument, NULL, 'i' },
+ { "ipaddr", required_argument, NULL, 'i' },
+ { "log", required_argument, NULL, LOG_OPTION },
+ { "long-options", no_argument, NULL, LONG_OPTIONS_OPTION },
+ { "new-style", no_argument, NULL, 'n' },
+ { "newstyle", no_argument, NULL, 'n' },
+ { "old-style", no_argument, NULL, 'o' },
+ { "oldstyle", no_argument, NULL, 'o' },
+ { "pid-file", required_argument, NULL, 'P' },
+ { "pidfile", required_argument, NULL, 'P' },
+ { "port", required_argument, NULL, 'p' },
+ { "read-only", no_argument, NULL, 'r' },
+ { "readonly", no_argument, NULL, 'r' },
+ { "run", required_argument, NULL, RUN_OPTION },
+ { "selinux-label", required_argument, NULL, SELINUX_LABEL_OPTION },
+ { "short-options", no_argument, NULL, SHORT_OPTIONS_OPTION },
+ { "single", no_argument, NULL, 's' },
+ { "stdin", no_argument, NULL, 's' },
+ { "threads", required_argument, NULL, 't' },
+ { "tls", required_argument, NULL, TLS_OPTION },
+ { "tls-certificates", required_argument, NULL, TLS_CERTIFICATES_OPTION },
+ { "tls-psk", required_argument, NULL, TLS_PSK_OPTION },
+ { "tls-verify-peer", no_argument, NULL, TLS_VERIFY_PEER_OPTION },
+ { "unix", required_argument, NULL, 'U' },
+ { "user", required_argument, NULL, 'u' },
+ { "verbose", no_argument, NULL, 'v' },
+ { "version", no_argument, NULL, 'V' },
+ { NULL },
+};
+
+/* Is it a plugin or filter name relative to the plugindir/filterdir? */
+static inline bool
+is_short_name (const char *filename)
+{
+ return strchr (filename, '.') == NULL && strchr (filename, '/') == NULL;
+}
+
+#endif /* NBDKIT_OPTIONS_H */
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+#include <inttypes.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <dlfcn.h>
+
+#include "internal.h"
+#include "minmax.h"
+
+/* Maximum read or write request that we will handle. */
+#define MAX_REQUEST_SIZE (64 * 1024 * 1024)
+
+/* We extend the generic backend struct with extra fields relating
+ * to this plugin.
+ */
+struct backend_plugin {
+ struct backend backend;
+ char *name; /* copy of plugin.name */
+ char *filename;
+ void *dl;
+ struct nbdkit_plugin plugin;
+};
+
+static void
+plugin_free (struct backend *b)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+
+ /* Acquiring this lock prevents any plugin callbacks from running
+ * simultaneously.
+ */
+ lock_unload ();
+
+ debug ("%s: unload", p->name);
+ if (p->plugin.unload)
+ p->plugin.unload ();
+
+ if (DO_DLCLOSE)
+ dlclose (p->dl);
+ free (p->filename);
+
+ unlock_unload ();
+
+ free (p->name);
+ free (p);
+}
+
+static int
+plugin_thread_model (struct backend *b)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+
+ return p->plugin._thread_model;
+}
+
+static const char *
+plugin_name (struct backend *b)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+
+ return p->name;
+}
+
+static void
+plugin_usage (struct backend *b)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+ const char *t;
+
+ printf ("plugin: %s", p->name);
+ if (p->plugin.longname)
+ printf (" (%s)", p->plugin.longname);
+ printf ("\n");
+ printf ("(%s)\n", p->filename);
+ if (p->plugin.description) {
+ printf ("%s", p->plugin.description);
+ if ((t = strrchr (p->plugin.description, '\n')) == NULL || t[1])
+ printf ("\n");
+ }
+ if (p->plugin.config_help) {
+ printf ("%s", p->plugin.config_help);
+ if ((t = strrchr (p->plugin.config_help, '\n')) == NULL || t[1])
+ printf ("\n");
+ }
+}
+
+static const char *
+plugin_version (struct backend *b)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+
+ return p->plugin.version;
+}
+
+/* This implements the --dump-plugin option. */
+static void
+plugin_dump_fields (struct backend *b)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+ char *path;
+
+ path = nbdkit_realpath (p->filename);
+ printf ("path=%s\n", path);
+ free (path);
+
+ printf ("name=%s\n", p->name);
+ if (p->plugin.version)
+ printf ("version=%s\n", p->plugin.version);
+
+ printf ("api_version=%d\n", p->plugin._api_version);
+ printf ("struct_size=%" PRIu64 "\n", p->plugin._struct_size);
+ printf ("thread_model=");
+ switch (p->plugin._thread_model) {
+ case NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS:
+ printf ("serialize_connections");
+ break;
+ case NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS:
+ printf ("serialize_all_requests");
+ break;
+ case NBDKIT_THREAD_MODEL_SERIALIZE_REQUESTS:
+ printf ("serialize_requests");
+ break;
+ case NBDKIT_THREAD_MODEL_PARALLEL:
+ printf ("parallel");
+ break;
+ default:
+ printf ("%d # unknown thread model!", p->plugin._thread_model);
+ break;
+ }
+ printf ("\n");
+ printf ("errno_is_preserved=%d\n", p->plugin.errno_is_preserved);
+ if (p->plugin.magic_config_key)
+ printf ("magic_config_key=%s\n", p->plugin.magic_config_key);
+
+#define HAS(field) if (p->plugin.field) printf ("has_%s=1\n", #field)
+ HAS (longname);
+ HAS (description);
+ HAS (load);
+ HAS (unload);
+ HAS (dump_plugin);
+ HAS (config);
+ HAS (config_complete);
+ HAS (config_help);
+ HAS (open);
+ HAS (close);
+ HAS (get_size);
+ HAS (can_write);
+ HAS (can_flush);
+ HAS (is_rotational);
+ HAS (can_trim);
+ HAS (_pread_old);
+ HAS (_pwrite_old);
+ HAS (_flush_old);
+ HAS (_trim_old);
+ HAS (_zero_old);
+ HAS (can_zero);
+ HAS (can_fua);
+ HAS (pread);
+ HAS (pwrite);
+ HAS (flush);
+ HAS (trim);
+ HAS (zero);
+ HAS (can_multi_conn);
+ HAS (can_extents);
+ HAS (extents);
+#undef HAS
+
+ /* Custom fields. */
+ if (p->plugin.dump_plugin)
+ p->plugin.dump_plugin ();
+}
+
+static void
+plugin_config (struct backend *b, const char *key, const char *value)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+
+ debug ("%s: config key=%s, value=%s", p->name, key, value);
+
+ if (p->plugin.config == NULL) {
+ fprintf (stderr,
+ "%s: %s: this plugin does not need command line configuration\n"
+ "Try using: %s --help %s\n",
+ program_name, p->filename,
+ program_name, p->filename);
+ exit (EXIT_FAILURE);
+ }
+
+ if (p->plugin.config (key, value) == -1)
+ exit (EXIT_FAILURE);
+}
+
+static void
+plugin_config_complete (struct backend *b)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+
+ debug ("%s: config_complete", p->name);
+
+ if (!p->plugin.config_complete)
+ return;
+
+ if (p->plugin.config_complete () == -1)
+ exit (EXIT_FAILURE);
+}
+
+static const char *
+plugin_magic_config_key (struct backend *b)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+
+ return p->plugin.magic_config_key;
+}
+
+static int
+plugin_open (struct backend *b, struct connection *conn, int readonly)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+ void *handle;
+
+ assert (connection_get_handle (conn, 0) == NULL);
+ assert (p->plugin.open != NULL);
+
+ debug ("%s: open readonly=%d", p->name, readonly);
+
+ handle = p->plugin.open (readonly);
+ if (!handle)
+ return -1;
+
+ connection_set_handle (conn, 0, handle);
+ return 0;
+}
+
+/* We don't expose .prepare and .finalize to plugins since they aren't
+ * necessary. Plugins can easily do the same work in .open and
+ * .close.
+ */
+static int
+plugin_prepare (struct backend *b, struct connection *conn)
+{
+ return 0;
+}
+
+static int
+plugin_finalize (struct backend *b, struct connection *conn)
+{
+ return 0;
+}
+
+static void
+plugin_close (struct backend *b, struct connection *conn)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+
+ assert (connection_get_handle (conn, 0));
+
+ debug ("close");
+
+ if (p->plugin.close)
+ p->plugin.close (connection_get_handle (conn, 0));
+
+ connection_set_handle (conn, 0, NULL);
+}
+
+static int64_t
+plugin_get_size (struct backend *b, struct connection *conn)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+
+ assert (connection_get_handle (conn, 0));
+ assert (p->plugin.get_size != NULL);
+
+ debug ("get_size");
+
+ return p->plugin.get_size (connection_get_handle (conn, 0));
+}
+
+static int
+plugin_can_write (struct backend *b, struct connection *conn)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+
+ assert (connection_get_handle (conn, 0));
+
+ debug ("can_write");
+
+ if (p->plugin.can_write)
+ return p->plugin.can_write (connection_get_handle (conn, 0));
+ else
+ return p->plugin.pwrite || p->plugin._pwrite_old;
+}
+
+static int
+plugin_can_flush (struct backend *b, struct connection *conn)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+
+ assert (connection_get_handle (conn, 0));
+
+ debug ("can_flush");
+
+ if (p->plugin.can_flush)
+ return p->plugin.can_flush (connection_get_handle (conn, 0));
+ else
+ return p->plugin.flush || p->plugin._flush_old;
+}
+
+static int
+plugin_is_rotational (struct backend *b, struct connection *conn)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+
+ assert (connection_get_handle (conn, 0));
+
+ debug ("is_rotational");
+
+ if (p->plugin.is_rotational)
+ return p->plugin.is_rotational (connection_get_handle (conn, 0));
+ else
+ return 0; /* assume false */
+}
+
+static int
+plugin_can_trim (struct backend *b, struct connection *conn)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+
+ assert (connection_get_handle (conn, 0));
+
+ debug ("can_trim");
+
+ if (p->plugin.can_trim)
+ return p->plugin.can_trim (connection_get_handle (conn, 0));
+ else
+ return p->plugin.trim || p->plugin._trim_old;
+}
+
+static int
+plugin_can_zero (struct backend *b, struct connection *conn)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+
+ assert (connection_get_handle (conn, 0));
+
+ debug ("can_zero");
+
+ /* Note the special case here: the plugin's .can_zero controls only
+ * whether we call .zero; while the backend expects .can_zero to
+ * return whether to advertise zero support. Since we ALWAYS know
+ * how to fall back to .pwrite in plugin_zero(), we ignore the
+ * difference between the plugin's true or false return, and only
+ * call it to catch a -1 failure during negotiation. */
+ if (p->plugin.can_zero &&
+ p->plugin.can_zero (connection_get_handle (conn, 0)) == -1)
+ return -1;
+ return plugin_can_write (b, conn);
+}
+
+static int
+plugin_can_extents (struct backend *b, struct connection *conn)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+
+ assert (connection_get_handle (conn, 0));
+
+ debug ("can_extents");
+
+ if (p->plugin.can_extents)
+ return p->plugin.can_extents (connection_get_handle (conn, 0));
+ else
+ return p->plugin.extents != NULL;
+}
+
+static int
+plugin_can_fua (struct backend *b, struct connection *conn)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+ int r;
+
+ assert (connection_get_handle (conn, 0));
+
+ debug ("can_fua");
+
+ /* The plugin must use API version 2 and have .can_fua return
+ NBDKIT_FUA_NATIVE before we will pass the FUA flag on. */
+ if (p->plugin.can_fua) {
+ r = p->plugin.can_fua (connection_get_handle (conn, 0));
+ if (r > NBDKIT_FUA_EMULATE && p->plugin._api_version == 1)
+ r = NBDKIT_FUA_EMULATE;
+ return r;
+ }
+ /* We intend to call .flush even if .can_flush returns false. */
+ if (p->plugin.flush || p->plugin._flush_old)
+ return NBDKIT_FUA_EMULATE;
+ return NBDKIT_FUA_NONE;
+}
+
+static int
+plugin_can_multi_conn (struct backend *b, struct connection *conn)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+
+ assert (connection_get_handle (conn, 0));
+
+ debug ("can_multi_conn");
+
+ if (p->plugin.can_multi_conn)
+ return p->plugin.can_multi_conn (connection_get_handle (conn, 0));
+ else
+ return 0; /* assume false */
+}
+
+/* Plugins and filters can call this to set the true errno, in cases
+ * where !errno_is_preserved.
+ */
+void
+nbdkit_set_error (int err)
+{
+ threadlocal_set_error (err);
+}
+
+/* Grab the appropriate error value.
+ */
+static int
+get_error (struct backend_plugin *p)
+{
+ int ret = threadlocal_get_error ();
+
+ if (!ret && p->plugin.errno_is_preserved)
+ ret = errno;
+ return ret ? ret : EIO;
+}
+
+static int
+plugin_pread (struct backend *b, struct connection *conn,
+ void *buf, uint32_t count, uint64_t offset, uint32_t flags,
+ int *err)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+ int r;
+
+ assert (connection_get_handle (conn, 0));
+ assert (p->plugin.pread || p->plugin._pread_old);
+ assert (!flags);
+
+ debug ("pread count=%" PRIu32 " offset=%" PRIu64, count, offset);
+
+ if (p->plugin.pread)
+ r = p->plugin.pread (connection_get_handle (conn, 0), buf, count, offset,
+ 0);
+ else
+ r = p->plugin._pread_old (connection_get_handle (conn, 0), buf, count,
+ offset);
+ if (r == -1)
+ *err = get_error (p);
+ return r;
+}
+
+static int
+plugin_flush (struct backend *b, struct connection *conn, uint32_t flags,
+ int *err)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+ int r;
+
+ assert (connection_get_handle (conn, 0));
+ assert (!flags);
+
+ debug ("flush");
+
+ if (p->plugin.flush)
+ r = p->plugin.flush (connection_get_handle (conn, 0), 0);
+ else if (p->plugin._flush_old)
+ r = p->plugin._flush_old (connection_get_handle (conn, 0));
+ else {
+ *err = EINVAL;
+ return -1;
+ }
+ if (r == -1)
+ *err = get_error (p);
+ return r;
+}
+
+static int
+plugin_pwrite (struct backend *b, struct connection *conn,
+ const void *buf, uint32_t count, uint64_t offset, uint32_t flags,
+ int *err)
+{
+ int r;
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+ bool fua = flags & NBDKIT_FLAG_FUA;
+ bool need_flush = false;
+
+ assert (connection_get_handle (conn, 0));
+ assert (!(flags & ~NBDKIT_FLAG_FUA));
+
+ debug ("pwrite count=%" PRIu32 " offset=%" PRIu64 " fua=%d", count, offset,
+ fua);
+
+ if (fua && plugin_can_fua (b, conn) != NBDKIT_FUA_NATIVE) {
+ flags &= ~NBDKIT_FLAG_FUA;
+ need_flush = true;
+ }
+ if (p->plugin.pwrite)
+ r = p->plugin.pwrite (connection_get_handle (conn, 0), buf, count, offset,
+ flags);
+ else if (p->plugin._pwrite_old)
+ r = p->plugin._pwrite_old (connection_get_handle (conn, 0),
+ buf, count, offset);
+ else {
+ *err = EROFS;
+ return -1;
+ }
+ if (r != -1 && need_flush)
+ r = plugin_flush (b, conn, 0, err);
+ if (r == -1)
+ *err = get_error (p);
+ return r;
+}
+
+static int
+plugin_trim (struct backend *b, struct connection *conn,
+ uint32_t count, uint64_t offset, uint32_t flags, int *err)
+{
+ int r;
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+ bool fua = flags & NBDKIT_FLAG_FUA;
+ bool need_flush = false;
+
+ assert (connection_get_handle (conn, 0));
+ assert (!(flags & ~NBDKIT_FLAG_FUA));
+
+ debug ("trim count=%" PRIu32 " offset=%" PRIu64 " fua=%d", count, offset,
+ fua);
+
+ if (fua && plugin_can_fua (b, conn) != NBDKIT_FUA_NATIVE) {
+ flags &= ~NBDKIT_FLAG_FUA;
+ need_flush = true;
+ }
+ if (p->plugin.trim)
+ r = p->plugin.trim (connection_get_handle (conn, 0), count, offset, flags);
+ else if (p->plugin._trim_old)
+ r = p->plugin._trim_old (connection_get_handle (conn, 0), count, offset);
+ else {
+ *err = EINVAL;
+ return -1;
+ }
+ if (r != -1 && need_flush)
+ r = plugin_flush (b, conn, 0, err);
+ if (r == -1)
+ *err = get_error (p);
+ return r;
+}
+
+static int
+plugin_zero (struct backend *b, struct connection *conn,
+ uint32_t count, uint64_t offset, uint32_t flags, int *err)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+ int r = -1;
+ bool may_trim = flags & NBDKIT_FLAG_MAY_TRIM;
+ bool fua = flags & NBDKIT_FLAG_FUA;
+ bool emulate = false;
+ bool need_flush = false;
+ int can_zero = 1; /* TODO cache this per-connection? */
+
+ assert (connection_get_handle (conn, 0));
+ assert (!(flags & ~(NBDKIT_FLAG_MAY_TRIM | NBDKIT_FLAG_FUA)));
+
+ debug ("zero count=%" PRIu32 " offset=%" PRIu64 " may_trim=%d fua=%d",
+ count, offset, may_trim, fua);
+
+ if (fua && plugin_can_fua (b, conn) != NBDKIT_FUA_NATIVE) {
+ flags &= ~NBDKIT_FLAG_FUA;
+ need_flush = true;
+ }
+ if (!count)
+ return 0;
+ if (p->plugin.can_zero) {
+ can_zero = p->plugin.can_zero (connection_get_handle (conn, 0));
+ assert (can_zero != -1);
+ }
+
+ if (can_zero) {
+ errno = 0;
+ if (p->plugin.zero)
+ r = p->plugin.zero (connection_get_handle (conn, 0), count, offset,
+ flags);
+ else if (p->plugin._zero_old)
+ r = p->plugin._zero_old (connection_get_handle (conn, 0), count, offset,
+ may_trim);
+ else
+ emulate = true;
+ if (r == -1)
+ *err = emulate ? EOPNOTSUPP : get_error (p);
+ if (r == 0 || *err != EOPNOTSUPP)
+ goto done;
+ }
+
+ assert (p->plugin.pwrite || p->plugin._pwrite_old);
+ flags &= ~NBDKIT_FLAG_MAY_TRIM;
+ threadlocal_set_error (0);
+
+ while (count) {
+ /* Always contains zeroes, but we can't use const or else gcc 9
+ * will use .rodata instead of .bss and inflate the binary size.
+ */
+ static /* const */ char buf[MAX_REQUEST_SIZE];
+ uint32_t limit = MIN (count, sizeof buf);
+
+ r = plugin_pwrite (b, conn, buf, limit, offset, flags, err);
+ if (r == -1)
+ break;
+ count -= limit;
+ }
+
+ *err = errno;
+ errno = *err;
+
+ done:
+ if (r != -1 && need_flush)
+ r = plugin_flush (b, conn, 0, err);
+ if (r == -1)
+ *err = get_error (p);
+ return r;
+}
+
+static int
+plugin_extents (struct backend *b, struct connection *conn,
+ uint32_t count, uint64_t offset, uint32_t flags,
+ struct nbdkit_extents *extents, int *err)
+{
+ struct backend_plugin *p = container_of (b, struct backend_plugin, backend);
+ bool req_one = flags & NBDKIT_FLAG_REQ_ONE;
+ int r;
+
+ assert (connection_get_handle (conn, 0));
+ assert (!(flags & ~NBDKIT_FLAG_REQ_ONE));
+
+ /* This should be true because plugin_can_extents checks it. */
+ assert (p->plugin.extents);
+
+ debug ("extents count=%" PRIu32 " offset=%" PRIu64 " req_one=%d",
+ count, offset, req_one);
+
+ if (!count)
+ return 0;
+
+ r = p->plugin.extents (connection_get_handle (conn, 0), count, offset,
+ flags, extents);
+ if (r >= 0 && nbdkit_extents_count (extents) < 1) {
+ nbdkit_error ("extents: plugin must return at least one extent");
+ nbdkit_set_error (EINVAL);
+ r = -1;
+ }
+ if (r == -1)
+ *err = get_error (p);
+ return r;
+}
+
+static struct backend plugin_functions = {
+ .free = plugin_free,
+ .thread_model = plugin_thread_model,
+ .name = plugin_name,
+ .plugin_name = plugin_name,
+ .usage = plugin_usage,
+ .version = plugin_version,
+ .dump_fields = plugin_dump_fields,
+ .config = plugin_config,
+ .config_complete = plugin_config_complete,
+ .magic_config_key = plugin_magic_config_key,
+ .open = plugin_open,
+ .prepare = plugin_prepare,
+ .finalize = plugin_finalize,
+ .close = plugin_close,
+ .get_size = plugin_get_size,
+ .can_write = plugin_can_write,
+ .can_flush = plugin_can_flush,
+ .is_rotational = plugin_is_rotational,
+ .can_trim = plugin_can_trim,
+ .can_zero = plugin_can_zero,
+ .can_extents = plugin_can_extents,
+ .can_fua = plugin_can_fua,
+ .can_multi_conn = plugin_can_multi_conn,
+ .pread = plugin_pread,
+ .pwrite = plugin_pwrite,
+ .flush = plugin_flush,
+ .trim = plugin_trim,
+ .zero = plugin_zero,
+ .extents = plugin_extents,
+};
+
+/* Register and load a plugin. */
+struct backend *
+plugin_register (size_t index, const char *filename,
+ void *dl, struct nbdkit_plugin *(*plugin_init) (void))
+{
+ struct backend_plugin *p;
+ const struct nbdkit_plugin *plugin;
+ size_t i, len, size;
+
+ p = malloc (sizeof *p);
+ if (p == NULL) {
+ out_of_memory:
+ perror ("strdup");
+ exit (EXIT_FAILURE);
+ }
+
+ p->backend = plugin_functions;
+ p->backend.next = NULL;
+ p->backend.i = index;
+ p->filename = strdup (filename);
+ if (p->filename == NULL) goto out_of_memory;
+ p->dl = dl;
+
+ debug ("registering plugin %s", p->filename);
+
+ /* Call the initialization function which returns the address of the
+ * plugin's own 'struct nbdkit_plugin'.
+ */
+ plugin = plugin_init ();
+ if (!plugin) {
+ fprintf (stderr, "%s: %s: plugin registration function failed\n",
+ program_name, p->filename);
+ exit (EXIT_FAILURE);
+ }
+
+ /* Check for incompatible future versions. */
+ if (plugin->_api_version < 0 || plugin->_api_version > 2) {
+ fprintf (stderr,
+ "%s: %s: plugin is incompatible with this version of nbdkit "
+ "(_api_version = %d)\n",
+ program_name, p->filename, plugin->_api_version);
+ exit (EXIT_FAILURE);
+ }
+
+ /* Since the plugin might be much older than the current version of
+ * nbdkit, only copy up to the self-declared _struct_size of the
+ * plugin and zero out the rest. If the plugin is much newer then
+ * we'll only call the "old" fields.
+ */
+ size = sizeof p->plugin; /* our struct */
+ memset (&p->plugin, 0, size);
+ if (size > plugin->_struct_size)
+ size = plugin->_struct_size;
+ memcpy (&p->plugin, plugin, size);
+
+ /* Check for the minimum fields which must exist in the
+ * plugin struct.
+ */
+ if (p->plugin.name == NULL) {
+ fprintf (stderr, "%s: %s: plugin must have a .name field\n",
+ program_name, p->filename);
+ exit (EXIT_FAILURE);
+ }
+ if (p->plugin.open == NULL) {
+ fprintf (stderr, "%s: %s: plugin must have a .open callback\n",
+ program_name, p->filename);
+ exit (EXIT_FAILURE);
+ }
+ if (p->plugin.get_size == NULL) {
+ fprintf (stderr, "%s: %s: plugin must have a .get_size callback\n",
+ program_name, p->filename);
+ exit (EXIT_FAILURE);
+ }
+ if (p->plugin.pread == NULL && p->plugin._pread_old == NULL) {
+ fprintf (stderr, "%s: %s: plugin must have a .pread callback\n",
+ program_name, p->filename);
+ exit (EXIT_FAILURE);
+ }
+
+ len = strlen (p->plugin.name);
+ if (len == 0) {
+ fprintf (stderr, "%s: %s: plugin.name field must not be empty\n",
+ program_name, p->filename);
+ exit (EXIT_FAILURE);
+ }
+ for (i = 0; i < len; ++i) {
+ if (!((p->plugin.name[i] >= '0' && p->plugin.name[i] <= '9') ||
+ (p->plugin.name[i] >= 'a' && p->plugin.name[i] <= 'z') ||
+ (p->plugin.name[i] >= 'A' && p->plugin.name[i] <= 'Z'))) {
+ fprintf (stderr,
+ "%s: %s: plugin.name ('%s') field "
+ "must contain only ASCII alphanumeric characters\n",
+ program_name, p->filename, p->plugin.name);
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ /* Copy the module's name into local storage, so that plugin.name
+ * survives past unload.
+ */
+ p->name = strdup (p->plugin.name);
+ if (p->name == NULL) {
+ perror ("strdup");
+ exit (EXIT_FAILURE);
+ }
+
+ debug ("registered plugin %s (name %s)", p->filename, p->name);
+
+ /* Set debug flags before calling load. */
+ set_debug_flags (dl, p->name);
+
+ /* Call the on-load callback if it exists. */
+ debug ("%s: load", p->name);
+ if (p->plugin.load)
+ p->plugin.load ();
+
+ return (struct backend *) p;
+}
+
+/* Set all debug flags which apply to this plugin (also used by filters). */
+void
+set_debug_flags (void *dl, const char *name)
+{
+ struct debug_flag *flag;
+
+ for (flag = debug_flags; flag != NULL; flag = flag->next) {
+ if (!flag->used && strcmp (name, flag->name) == 0) {
+ CLEANUP_FREE char *var = NULL;
+ int *sym;
+
+ /* Synthesize the name of the variable. */
+ if (asprintf (&var, "%s_debug_%s", name, flag->flag) == -1) {
+ perror ("asprintf");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Find the symbol. */
+ sym = dlsym (dl, var);
+ if (sym == NULL) {
+ fprintf (stderr,
+ "%s: -D %s.%s: %s does not contain a "
+ "global variable called %s\n",
+ program_name, name, flag->flag, name, var);
+ exit (EXIT_FAILURE);
+ }
+
+ /* Set the flag. */
+ *sym = flag->value;
+
+ /* Mark this flag as used. */
+ flag->used = true;
+ }
+ }
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "internal.h"
+#include "byte-swapping.h"
+#include "protocol.h"
+
+/* Maximum number of client options we allow before giving up. */
+#define MAX_NR_OPTIONS 32
+
+/* Maximum length of any option data (bytes). */
+#define MAX_OPTION_LENGTH 4096
+
+/* Receive newstyle options. */
+static int
+send_newstyle_option_reply (struct connection *conn,
+ uint32_t option, uint32_t reply)
+{
+ struct fixed_new_option_reply fixed_new_option_reply;
+
+ fixed_new_option_reply.magic = htobe64 (NBD_REP_MAGIC);
+ fixed_new_option_reply.option = htobe32 (option);
+ fixed_new_option_reply.reply = htobe32 (reply);
+ fixed_new_option_reply.replylen = htobe32 (0);
+
+ if (conn->send (conn,
+ &fixed_new_option_reply,
+ sizeof fixed_new_option_reply) == -1) {
+ /* The protocol document says that the client is allowed to simply
+ * drop the connection after sending NBD_OPT_ABORT, or may read
+ * the reply.
+ */
+ if (option == NBD_OPT_ABORT)
+ debug ("write: %s: %m", name_of_nbd_opt (option));
+ else
+ nbdkit_error ("write: %s: %m", name_of_nbd_opt (option));
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+send_newstyle_option_reply_exportname (struct connection *conn,
+ uint32_t option, uint32_t reply,
+ const char *exportname)
+{
+ struct fixed_new_option_reply fixed_new_option_reply;
+ size_t name_len = strlen (exportname);
+ uint32_t len;
+
+ fixed_new_option_reply.magic = htobe64 (NBD_REP_MAGIC);
+ fixed_new_option_reply.option = htobe32 (option);
+ fixed_new_option_reply.reply = htobe32 (reply);
+ fixed_new_option_reply.replylen = htobe32 (name_len + sizeof (len));
+
+ if (conn->send (conn,
+ &fixed_new_option_reply,
+ sizeof fixed_new_option_reply) == -1) {
+ nbdkit_error ("write: %s: %m", name_of_nbd_opt (option));
+ return -1;
+ }
+
+ len = htobe32 (name_len);
+ if (conn->send (conn, &len, sizeof len) == -1) {
+ nbdkit_error ("write: %s: %s: %m",
+ name_of_nbd_opt (option), "sending length");
+ return -1;
+ }
+ if (conn->send (conn, exportname, name_len) == -1) {
+ nbdkit_error ("write: %s: %s: %m",
+ name_of_nbd_opt (option), "sending export name");
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+send_newstyle_option_reply_info_export (struct connection *conn,
+ uint32_t option, uint32_t reply,
+ uint16_t info)
+{
+ struct fixed_new_option_reply fixed_new_option_reply;
+ struct fixed_new_option_reply_info_export export;
+
+ fixed_new_option_reply.magic = htobe64 (NBD_REP_MAGIC);
+ fixed_new_option_reply.option = htobe32 (option);
+ fixed_new_option_reply.reply = htobe32 (reply);
+ fixed_new_option_reply.replylen = htobe32 (sizeof export);
+ export.info = htobe16 (info);
+ export.exportsize = htobe64 (conn->exportsize);
+ export.eflags = htobe16 (conn->eflags);
+
+ if (conn->send (conn,
+ &fixed_new_option_reply,
+ sizeof fixed_new_option_reply) == -1 ||
+ conn->send (conn, &export, sizeof export) == -1) {
+ nbdkit_error ("write: %s: %m", name_of_nbd_opt (option));
+ return -1;
+ }
+
+ return 0;
+}
+
+static int
+send_newstyle_option_reply_meta_context (struct connection *conn,
+ uint32_t option, uint32_t reply,
+ uint32_t context_id,
+ const char *name)
+{
+ struct fixed_new_option_reply fixed_new_option_reply;
+ struct fixed_new_option_reply_meta_context context;
+ const size_t namelen = strlen (name);
+
+ debug ("newstyle negotiation: %s: replying with %s id %d",
+ name_of_nbd_opt (option), name, context_id);
+ fixed_new_option_reply.magic = htobe64 (NBD_REP_MAGIC);
+ fixed_new_option_reply.option = htobe32 (option);
+ fixed_new_option_reply.reply = htobe32 (reply);
+ fixed_new_option_reply.replylen = htobe32 (sizeof context + namelen);
+ context.context_id = htobe32 (context_id);
+
+ if (conn->send (conn,
+ &fixed_new_option_reply,
+ sizeof fixed_new_option_reply) == -1 ||
+ conn->send (conn, &context, sizeof context) == -1 ||
+ conn->send (conn, name, namelen) == -1) {
+ nbdkit_error ("write: %s: %m", name_of_nbd_opt (option));
+ return -1;
+ }
+
+ return 0;
+}
+
+/* Sub-function during negotiate_handshake_newstyle, to uniformly handle
+ * a client hanging up on a message boundary.
+ */
+static int __attribute__ ((format (printf, 4, 5)))
+conn_recv_full (struct connection *conn, void *buf, size_t len,
+ const char *fmt, ...)
+{
+ int r = conn->recv (conn, buf, len);
+ va_list args;
+
+ if (r == -1) {
+ va_start (args, fmt);
+ nbdkit_verror (fmt, args);
+ va_end (args);
+ return -1;
+ }
+ if (r == 0) {
+ /* During negotiation, client EOF on message boundary is less
+ * severe than failure in the middle of the buffer. */
+ debug ("client closed input socket, closing connection");
+ return -1;
+ }
+ return r;
+}
+
+/* Sub-function of negotiate_handshake_newstyle_options below. It
+ * must be called on all non-error paths out of the options for-loop
+ * in that function.
+ */
+static int
+finish_newstyle_options (struct connection *conn)
+{
+ int64_t r;
+
+ r = backend->get_size (backend, conn);
+ if (r == -1)
+ return -1;
+ if (r < 0) {
+ nbdkit_error (".get_size function returned invalid value "
+ "(%" PRIi64 ")", r);
+ return -1;
+ }
+ conn->exportsize = (uint64_t) r;
+
+ if (protocol_compute_eflags (conn, &conn->eflags) < 0)
+ return -1;
+
+ debug ("newstyle negotiation: flags: export 0x%x", conn->eflags);
+ return 0;
+}
+
+static int
+negotiate_handshake_newstyle_options (struct connection *conn)
+{
+ struct new_option new_option;
+ size_t nr_options;
+ uint64_t version;
+ uint32_t option;
+ uint32_t optlen;
+ char data[MAX_OPTION_LENGTH+1];
+ struct new_handshake_finish handshake_finish;
+ const char *optname;
+
+ for (nr_options = 0; nr_options < MAX_NR_OPTIONS; ++nr_options) {
+ if (conn_recv_full (conn, &new_option, sizeof new_option,
+ "reading option: conn->recv: %m") == -1)
+ return -1;
+
+ version = be64toh (new_option.version);
+ if (version != NEW_VERSION) {
+ nbdkit_error ("unknown option version %" PRIx64
+ ", expecting %" PRIx64,
+ version, NEW_VERSION);
+ return -1;
+ }
+
+ /* There is a maximum option length we will accept, regardless
+ * of the option type.
+ */
+ optlen = be32toh (new_option.optlen);
+ if (optlen > MAX_OPTION_LENGTH) {
+ nbdkit_error ("client option data too long (%" PRIu32 ")", optlen);
+ return -1;
+ }
+
+ option = be32toh (new_option.option);
+ optname = name_of_nbd_opt (option);
+
+ /* In --tls=require / FORCEDTLS mode the only options allowed
+ * before TLS negotiation are NBD_OPT_ABORT and NBD_OPT_STARTTLS.
+ */
+ if (tls == 2 && !conn->using_tls &&
+ !(option == NBD_OPT_ABORT || option == NBD_OPT_STARTTLS)) {
+ if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_TLS_REQD))
+ return -1;
+ continue;
+ }
+
+ switch (option) {
+ case NBD_OPT_EXPORT_NAME:
+ if (conn_recv_full (conn, data, optlen,
+ "read: %s: %m", name_of_nbd_opt (option)) == -1)
+ return -1;
+ /* Apart from printing it, ignore the export name. */
+ data[optlen] = '\0';
+ debug ("newstyle negotiation: %s: "
+ "client requested export '%s' (ignored)",
+ name_of_nbd_opt (option), data);
+
+ /* We have to finish the handshake by sending handshake_finish. */
+ if (finish_newstyle_options (conn) == -1)
+ return -1;
+
+ memset (&handshake_finish, 0, sizeof handshake_finish);
+ handshake_finish.exportsize = htobe64 (conn->exportsize);
+ handshake_finish.eflags = htobe16 (conn->eflags);
+
+ if (conn->send (conn,
+ &handshake_finish,
+ (conn->cflags & NBD_FLAG_NO_ZEROES)
+ ? offsetof (struct new_handshake_finish, zeroes)
+ : sizeof handshake_finish) == -1) {
+ nbdkit_error ("write: %s: %m", optname);
+ return -1;
+ }
+ break;
+
+ case NBD_OPT_ABORT:
+ if (send_newstyle_option_reply (conn, option, NBD_REP_ACK) == -1)
+ return -1;
+ debug ("client sent %s to abort the connection",
+ name_of_nbd_opt (option));
+ return -1;
+
+ case NBD_OPT_LIST:
+ if (optlen != 0) {
+ if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_INVALID)
+ == -1)
+ return -1;
+ if (conn_recv_full (conn, data, optlen,
+ "read: %s: %m", name_of_nbd_opt (option)) == -1)
+ return -1;
+ continue;
+ }
+
+ /* Send back the exportname. */
+ debug ("newstyle negotiation: %s: advertising export '%s'",
+ name_of_nbd_opt (option), exportname);
+ if (send_newstyle_option_reply_exportname (conn, option, NBD_REP_SERVER,
+ exportname) == -1)
+ return -1;
+
+ if (send_newstyle_option_reply (conn, option, NBD_REP_ACK) == -1)
+ return -1;
+ break;
+
+ case NBD_OPT_STARTTLS:
+ if (optlen != 0) {
+ if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_INVALID)
+ == -1)
+ return -1;
+ if (conn_recv_full (conn, data, optlen,
+ "read: %s: %m", name_of_nbd_opt (option)) == -1)
+ return -1;
+ continue;
+ }
+
+ if (tls == 0) { /* --tls=off (NOTLS mode). */
+#ifdef HAVE_GNUTLS
+#define NO_TLS_REPLY NBD_REP_ERR_POLICY
+#else
+#define NO_TLS_REPLY NBD_REP_ERR_UNSUP
+#endif
+ if (send_newstyle_option_reply (conn, option, NO_TLS_REPLY) == -1)
+ return -1;
+ }
+ else /* --tls=on or --tls=require */ {
+ /* We can't upgrade to TLS twice on the same connection. */
+ if (conn->using_tls) {
+ if (send_newstyle_option_reply (conn, option,
+ NBD_REP_ERR_INVALID) == -1)
+ return -1;
+ continue;
+ }
+
+ /* We have to send the (unencrypted) reply before starting
+ * the handshake.
+ */
+ if (send_newstyle_option_reply (conn, option, NBD_REP_ACK) == -1)
+ return -1;
+
+ /* Upgrade the connection to TLS. Also performs access control. */
+ if (crypto_negotiate_tls (conn, conn->sockin, conn->sockout) == -1)
+ return -1;
+ conn->using_tls = true;
+ debug ("using TLS on this connection");
+ }
+ break;
+
+ case NBD_OPT_INFO:
+ case NBD_OPT_GO:
+ if (conn_recv_full (conn, data, optlen,
+ "read: %s: %m", optname) == -1)
+ return -1;
+
+ if (optlen < 6) { /* 32 bit export length + 16 bit nr info */
+ debug ("newstyle negotiation: %s option length < 6", optname);
+
+ if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_INVALID)
+ == -1)
+ return -1;
+ continue;
+ }
+
+ {
+ uint32_t exportnamelen;
+ uint16_t nrinfos;
+ uint16_t info;
+ size_t i;
+ CLEANUP_FREE char *requested_exportname = NULL;
+
+ /* Validate the name length and number of INFO requests. */
+ memcpy (&exportnamelen, &data[0], 4);
+ exportnamelen = be32toh (exportnamelen);
+ if (exportnamelen > optlen-6 /* NB optlen >= 6, see above */) {
+ debug ("newstyle negotiation: %s: export name too long", optname);
+ if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_INVALID)
+ == -1)
+ return -1;
+ continue;
+ }
+ memcpy (&nrinfos, &data[exportnamelen+4], 2);
+ nrinfos = be16toh (nrinfos);
+ if (optlen != 4 + exportnamelen + 2 + 2*nrinfos) {
+ debug ("newstyle negotiation: %s: "
+ "number of information requests incorrect", optname);
+ if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_INVALID)
+ == -1)
+ return -1;
+ continue;
+ }
+
+ /* As with NBD_OPT_EXPORT_NAME we print the export name and then
+ * ignore it.
+ */
+ requested_exportname = malloc (exportnamelen+1);
+ if (requested_exportname == NULL) {
+ nbdkit_error ("malloc: %m");
+ return -1;
+ }
+ memcpy (requested_exportname, &data[4], exportnamelen);
+ requested_exportname[exportnamelen] = '\0';
+ debug ("newstyle negotiation: %s: "
+ "client requested export '%s' (ignored)",
+ optname, requested_exportname);
+
+ /* The spec is confusing, but it is required that we send back
+ * NBD_INFO_EXPORT, even if the client did not request it!
+ * qemu client in particular does not request this, but will
+ * fail if we don't send it.
+ */
+ if (finish_newstyle_options (conn) == -1)
+ return -1;
+
+ if (send_newstyle_option_reply_info_export (conn, option,
+ NBD_REP_INFO,
+ NBD_INFO_EXPORT) == -1)
+ return -1;
+
+ /* For now we ignore all other info requests (but we must
+ * ignore NBD_INFO_EXPORT if it was requested, because we
+ * replied already above). Therefore this loop doesn't do
+ * much at the moment.
+ */
+ for (i = 0; i < nrinfos; ++i) {
+ memcpy (&info, &data[4 + exportnamelen + 2 + i*2], 2);
+ info = be16toh (info);
+ switch (info) {
+ case NBD_INFO_EXPORT: /* ignore - reply sent above */ break;
+ default:
+ debug ("newstyle negotiation: %s: "
+ "ignoring NBD_INFO_* request %u (%s)",
+ optname, (unsigned) info, name_of_nbd_info (info));
+ break;
+ }
+ }
+ }
+
+ /* Unlike NBD_OPT_EXPORT_NAME, NBD_OPT_GO sends back an ACK
+ * or ERROR packet.
+ */
+ if (send_newstyle_option_reply (conn, option, NBD_REP_ACK) == -1)
+ return -1;
+
+ break;
+
+ case NBD_OPT_STRUCTURED_REPLY:
+ if (optlen != 0) {
+ if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_INVALID)
+ == -1)
+ return -1;
+ if (conn_recv_full (conn, data, optlen,
+ "read: %s: %m", name_of_nbd_opt (option)) == -1)
+ return -1;
+ continue;
+ }
+
+ debug ("newstyle negotiation: %s: client requested structured replies",
+ name_of_nbd_opt (option));
+
+ if (send_newstyle_option_reply (conn, option, NBD_REP_ACK) == -1)
+ return -1;
+
+ conn->structured_replies = true;
+ break;
+
+ case NBD_OPT_LIST_META_CONTEXT:
+ case NBD_OPT_SET_META_CONTEXT:
+ {
+ uint32_t opt_index;
+ uint32_t exportnamelen;
+ uint32_t nr_queries;
+ uint32_t querylen;
+ const char *what;
+
+ if (conn_recv_full (conn, data, optlen, "read: %s: %m", optname) == -1)
+ return -1;
+
+ if (!conn->structured_replies) {
+ if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_INVALID)
+ == -1)
+ return -1;
+ continue;
+ }
+
+ /* Minimum length of the option payload is:
+ * 32 bit export name length followed by empty export name
+ * + 32 bit number of queries followed by no queries
+ * = 8 bytes.
+ */
+ what = "optlen < 8";
+ if (optlen < 8) {
+ opt_meta_invalid_option_len:
+ debug ("newstyle negotiation: %s: invalid option length: %s",
+ optname, what);
+
+ if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_INVALID)
+ == -1)
+ return -1;
+ continue;
+ }
+
+ /* Discard the export name. */
+ memcpy (&exportnamelen, &data[0], 4);
+ exportnamelen = be32toh (exportnamelen);
+ opt_index = 4 + exportnamelen;
+
+ /* Read the number of queries. */
+ what = "reading number of queries";
+ if (opt_index+4 > optlen)
+ goto opt_meta_invalid_option_len;
+ memcpy (&nr_queries, &data[opt_index], 4);
+ nr_queries = be32toh (nr_queries);
+ opt_index += 4;
+
+ /* for LIST: nr_queries == 0 means return all meta contexts
+ * for SET: nr_queries == 0 means reset all contexts
+ */
+ debug ("newstyle negotiation: %s: %s count: %d", optname,
+ option == NBD_OPT_LIST_META_CONTEXT ? "query" : "set",
+ nr_queries);
+ if (nr_queries == 0) {
+ if (option == NBD_OPT_SET_META_CONTEXT)
+ conn->meta_context_base_allocation = false;
+ else /* LIST */ {
+ if (send_newstyle_option_reply_meta_context
+ (conn, option, NBD_REP_META_CONTEXT,
+ 0, "base:allocation") == -1)
+ return -1;
+ }
+
+ if (send_newstyle_option_reply (conn, option, NBD_REP_ACK) == -1)
+ return -1;
+ }
+ else {
+ /* Read and answer each query. */
+ while (nr_queries > 0) {
+ what = "reading query string length";
+ if (opt_index+4 > optlen)
+ goto opt_meta_invalid_option_len;
+ memcpy (&querylen, &data[opt_index], 4);
+ querylen = be32toh (querylen);
+ opt_index += 4;
+ what = "reading query string";
+ if (opt_index + querylen > optlen)
+ goto opt_meta_invalid_option_len;
+
+ debug ("newstyle negotiation: %s: %s %.*s",
+ optname,
+ option == NBD_OPT_LIST_META_CONTEXT ? "query" : "set",
+ (int) querylen, &data[opt_index]);
+
+ /* For LIST, "base:" returns all supported contexts in the
+ * base namespace. We only support "base:allocation".
+ */
+ if (option == NBD_OPT_LIST_META_CONTEXT &&
+ querylen == 5 &&
+ strncmp (&data[opt_index], "base:", 5) == 0) {
+ if (send_newstyle_option_reply_meta_context
+ (conn, option, NBD_REP_META_CONTEXT,
+ 0, "base:allocation") == -1)
+ return -1;
+ }
+ /* "base:allocation" requested by name. */
+ else if (querylen == 15 &&
+ strncmp (&data[opt_index], "base:allocation", 15) == 0) {
+ if (send_newstyle_option_reply_meta_context
+ (conn, option, NBD_REP_META_CONTEXT,
+ option == NBD_OPT_SET_META_CONTEXT
+ ? base_allocation_id : 0,
+ "base:allocation") == -1)
+ return -1;
+ if (option == NBD_OPT_SET_META_CONTEXT)
+ conn->meta_context_base_allocation = true;
+ }
+ /* Every other query must be ignored. */
+
+ opt_index += querylen;
+ nr_queries--;
+ }
+ if (send_newstyle_option_reply (conn, option, NBD_REP_ACK) == -1)
+ return -1;
+ }
+ debug ("newstyle negotiation: %s: reply complete", optname);
+ }
+ break;
+
+ default:
+ /* Unknown option. */
+ if (send_newstyle_option_reply (conn, option, NBD_REP_ERR_UNSUP) == -1)
+ return -1;
+ if (conn_recv_full (conn, data, optlen,
+ "reading unknown option data: conn->recv: %m") == -1)
+ return -1;
+ }
+
+ /* Note, since it's not very clear from the protocol doc, that the
+ * client must send NBD_OPT_EXPORT_NAME or NBD_OPT_GO last, and
+ * that ends option negotiation.
+ */
+ if (option == NBD_OPT_EXPORT_NAME || option == NBD_OPT_GO)
+ break;
+ }
+
+ if (nr_options >= MAX_NR_OPTIONS) {
+ nbdkit_error ("client exceeded maximum number of options (%d)",
+ MAX_NR_OPTIONS);
+ return -1;
+ }
+
+ /* In --tls=require / FORCEDTLS mode, we must have upgraded to TLS
+ * by the time we finish option negotiation. If not, give up.
+ */
+ if (tls == 2 && !conn->using_tls) {
+ nbdkit_error ("non-TLS client tried to connect in --tls=require mode");
+ return -1;
+ }
+
+ return 0;
+}
+
+int
+protocol_handshake_newstyle (struct connection *conn)
+{
+ struct new_handshake handshake;
+ uint16_t gflags;
+
+ gflags = NBD_FLAG_FIXED_NEWSTYLE | NBD_FLAG_NO_ZEROES;
+
+ debug ("newstyle negotiation: flags: global 0x%x", gflags);
+
+ memcpy (handshake.nbdmagic, "NBDMAGIC", 8);
+ handshake.version = htobe64 (NEW_VERSION);
+ handshake.gflags = htobe16 (gflags);
+
+ if (conn->send (conn, &handshake, sizeof handshake) == -1) {
+ nbdkit_error ("write: %s: %m", "sending newstyle handshake");
+ return -1;
+ }
+
+ /* Client now sends us its 32 bit flags word ... */
+ if (conn_recv_full (conn, &conn->cflags, sizeof conn->cflags,
+ "reading initial client flags: conn->recv: %m") == -1)
+ return -1;
+ conn->cflags = be32toh (conn->cflags);
+ /* ... which we check for accuracy. */
+ debug ("newstyle negotiation: client flags: 0x%x", conn->cflags);
+ if (conn->cflags & ~gflags) {
+ nbdkit_error ("client requested unknown flags 0x%x", conn->cflags);
+ return -1;
+ }
+
+ /* Receive newstyle options. */
+ if (negotiate_handshake_newstyle_options (conn) == -1)
+ return -1;
+
+ return 0;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "internal.h"
+#include "byte-swapping.h"
+#include "protocol.h"
+
+int
+protocol_handshake_oldstyle (struct connection *conn)
+{
+ struct old_handshake handshake;
+ int64_t r;
+ uint64_t exportsize;
+ uint16_t gflags, eflags;
+
+ /* In --tls=require / FORCEDTLS mode, old style handshakes are
+ * rejected because they cannot support TLS.
+ */
+ if (tls == 2) {
+ nbdkit_error ("non-TLS client tried to connect in --tls=require mode");
+ return -1;
+ }
+
+ r = backend->get_size (backend, conn);
+ if (r == -1)
+ return -1;
+ if (r < 0) {
+ nbdkit_error (".get_size function returned invalid value "
+ "(%" PRIi64 ")", r);
+ return -1;
+ }
+ exportsize = (uint64_t) r;
+ conn->exportsize = exportsize;
+
+ gflags = 0;
+ if (protocol_compute_eflags (conn, &eflags) < 0)
+ return -1;
+
+ debug ("oldstyle negotiation: flags: global 0x%x export 0x%x",
+ gflags, eflags);
+
+ memset (&handshake, 0, sizeof handshake);
+ memcpy (handshake.nbdmagic, "NBDMAGIC", 8);
+ handshake.version = htobe64 (OLD_VERSION);
+ handshake.exportsize = htobe64 (exportsize);
+ handshake.gflags = htobe16 (gflags);
+ handshake.eflags = htobe16 (eflags);
+
+ if (conn->send (conn, &handshake, sizeof handshake) == -1) {
+ nbdkit_error ("write: %m");
+ return -1;
+ }
+
+ return 0;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "internal.h"
+#include "byte-swapping.h"
+#include "protocol.h"
+
+/* eflags calculation is the same between oldstyle and newstyle
+ * protocols.
+ */
+int
+protocol_compute_eflags (struct connection *conn, uint16_t *flags)
+{
+ uint16_t eflags = NBD_FLAG_HAS_FLAGS;
+ int fl;
+
+ fl = backend->can_write (backend, conn);
+ if (fl == -1)
+ return -1;
+ if (readonly || !fl) {
+ eflags |= NBD_FLAG_READ_ONLY;
+ conn->readonly = true;
+ }
+ if (!conn->readonly) {
+ fl = backend->can_zero (backend, conn);
+ if (fl == -1)
+ return -1;
+ if (fl) {
+ eflags |= NBD_FLAG_SEND_WRITE_ZEROES;
+ conn->can_zero = true;
+ }
+
+ fl = backend->can_trim (backend, conn);
+ if (fl == -1)
+ return -1;
+ if (fl) {
+ eflags |= NBD_FLAG_SEND_TRIM;
+ conn->can_trim = true;
+ }
+
+ fl = backend->can_fua (backend, conn);
+ if (fl == -1)
+ return -1;
+ if (fl) {
+ eflags |= NBD_FLAG_SEND_FUA;
+ conn->can_fua = true;
+ }
+ }
+
+ fl = backend->can_flush (backend, conn);
+ if (fl == -1)
+ return -1;
+ if (fl) {
+ eflags |= NBD_FLAG_SEND_FLUSH;
+ conn->can_flush = true;
+ }
+
+ fl = backend->is_rotational (backend, conn);
+ if (fl == -1)
+ return -1;
+ if (fl) {
+ eflags |= NBD_FLAG_ROTATIONAL;
+ conn->is_rotational = true;
+ }
+
+ /* multi-conn is useless if parallel connections are not allowed */
+ if (backend->thread_model (backend) >
+ NBDKIT_THREAD_MODEL_SERIALIZE_CONNECTIONS) {
+ fl = backend->can_multi_conn (backend, conn);
+ if (fl == -1)
+ return -1;
+ if (fl) {
+ eflags |= NBD_FLAG_CAN_MULTI_CONN;
+ conn->can_multi_conn = true;
+ }
+ }
+
+ /* The result of this is not returned to callers here (or at any
+ * time during the handshake). However it makes sense to do it once
+ * per connection and store the result in the handle anyway. This
+ * protocol_compute_eflags function is a bit misnamed XXX.
+ */
+ fl = backend->can_extents (backend, conn);
+ if (fl == -1)
+ return -1;
+ if (fl)
+ conn->can_extents = true;
+
+ if (conn->structured_replies)
+ eflags |= NBD_FLAG_SEND_DF;
+
+ *flags = eflags;
+ return 0;
+}
+
+int
+protocol_handshake (struct connection *conn)
+{
+ int r;
+
+ lock_request (conn);
+ if (!newstyle)
+ r = protocol_handshake_oldstyle (conn);
+ else
+ r = protocol_handshake_newstyle (conn);
+ unlock_request (conn);
+
+ return r;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <stdbool.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <assert.h>
+
+#include "internal.h"
+#include "byte-swapping.h"
+#include "minmax.h"
+#include "protocol.h"
+
+/* Maximum read or write request that we will handle. */
+#define MAX_REQUEST_SIZE (64 * 1024 * 1024)
+
+static bool
+valid_range (struct connection *conn, uint64_t offset, uint32_t count)
+{
+ uint64_t exportsize = conn->exportsize;
+
+ return count > 0 && offset <= exportsize && offset + count <= exportsize;
+}
+
+static bool
+validate_request (struct connection *conn,
+ uint16_t cmd, uint16_t flags, uint64_t offset, uint32_t count,
+ uint32_t *error)
+{
+ /* Readonly connection? */
+ if (conn->readonly &&
+ (cmd == NBD_CMD_WRITE || cmd == NBD_CMD_TRIM ||
+ cmd == NBD_CMD_WRITE_ZEROES)) {
+ nbdkit_error ("invalid request: %s: write request on readonly connection",
+ name_of_nbd_cmd (cmd));
+ *error = EROFS;
+ return false;
+ }
+
+ /* Validate cmd, offset, count. */
+ switch (cmd) {
+ case NBD_CMD_READ:
+ case NBD_CMD_WRITE:
+ case NBD_CMD_TRIM:
+ case NBD_CMD_WRITE_ZEROES:
+ case NBD_CMD_BLOCK_STATUS:
+ if (!valid_range (conn, offset, count)) {
+ /* XXX Allow writes to extend the disk? */
+ nbdkit_error ("invalid request: %s: offset and count are out of range: "
+ "offset=%" PRIu64 " count=%" PRIu32,
+ name_of_nbd_cmd (cmd), offset, count);
+ *error = (cmd == NBD_CMD_WRITE ||
+ cmd == NBD_CMD_WRITE_ZEROES) ? ENOSPC : EINVAL;
+ return false;
+ }
+ break;
+
+ case NBD_CMD_FLUSH:
+ if (offset != 0 || count != 0) {
+ nbdkit_error ("invalid request: %s: expecting offset and count = 0",
+ name_of_nbd_cmd (cmd));
+ *error = EINVAL;
+ return false;
+ }
+ break;
+
+ default:
+ nbdkit_error ("invalid request: unknown command (%" PRIu32 ") ignored",
+ cmd);
+ *error = EINVAL;
+ return false;
+ }
+
+ /* Validate flags */
+ if (flags & ~(NBD_CMD_FLAG_FUA | NBD_CMD_FLAG_NO_HOLE |
+ NBD_CMD_FLAG_DF | NBD_CMD_FLAG_REQ_ONE)) {
+ nbdkit_error ("invalid request: unknown flag (0x%x)", flags);
+ *error = EINVAL;
+ return false;
+ }
+ if ((flags & NBD_CMD_FLAG_NO_HOLE) &&
+ cmd != NBD_CMD_WRITE_ZEROES) {
+ nbdkit_error ("invalid request: NO_HOLE flag needs WRITE_ZEROES request");
+ *error = EINVAL;
+ return false;
+ }
+ if (flags & NBD_CMD_FLAG_DF) {
+ if (cmd != NBD_CMD_READ) {
+ nbdkit_error ("invalid request: DF flag needs READ request");
+ *error = EINVAL;
+ return false;
+ }
+ if (!conn->structured_replies) {
+ nbdkit_error ("invalid request: "
+ "%s: structured replies was not negotiated",
+ name_of_nbd_cmd (cmd));
+ *error = EINVAL;
+ return false;
+ }
+ }
+ if ((flags & NBD_CMD_FLAG_REQ_ONE) &&
+ cmd != NBD_CMD_BLOCK_STATUS) {
+ nbdkit_error ("invalid request: REQ_ONE flag needs BLOCK_STATUS request");
+ *error = EINVAL;
+ return false;
+ }
+ if (!conn->can_fua && (flags & NBD_CMD_FLAG_FUA)) {
+ nbdkit_error ("invalid request: FUA flag not supported");
+ *error = EINVAL;
+ return false;
+ }
+
+ /* Refuse over-large read and write requests. */
+ if ((cmd == NBD_CMD_WRITE || cmd == NBD_CMD_READ) &&
+ count > MAX_REQUEST_SIZE) {
+ nbdkit_error ("invalid request: %s: data request is too large (%" PRIu32
+ " > %d)",
+ name_of_nbd_cmd (cmd), count, MAX_REQUEST_SIZE);
+ *error = ENOMEM;
+ return false;
+ }
+
+ /* Flush allowed? */
+ if (!conn->can_flush && cmd == NBD_CMD_FLUSH) {
+ nbdkit_error ("invalid request: %s: flush operation not supported",
+ name_of_nbd_cmd (cmd));
+ *error = EINVAL;
+ return false;
+ }
+
+ /* Trim allowed? */
+ if (!conn->can_trim && cmd == NBD_CMD_TRIM) {
+ nbdkit_error ("invalid request: %s: trim operation not supported",
+ name_of_nbd_cmd (cmd));
+ *error = EINVAL;
+ return false;
+ }
+
+ /* Zero allowed? */
+ if (!conn->can_zero && cmd == NBD_CMD_WRITE_ZEROES) {
+ nbdkit_error ("invalid request: %s: write zeroes operation not supported",
+ name_of_nbd_cmd (cmd));
+ *error = EINVAL;
+ return false;
+ }
+
+ /* Block status allowed? */
+ if (cmd == NBD_CMD_BLOCK_STATUS) {
+ if (!conn->structured_replies) {
+ nbdkit_error ("invalid request: "
+ "%s: structured replies was not negotiated",
+ name_of_nbd_cmd (cmd));
+ *error = EINVAL;
+ return false;
+ }
+ if (!conn->meta_context_base_allocation) {
+ nbdkit_error ("invalid request: "
+ "%s: base:allocation was not negotiated",
+ name_of_nbd_cmd (cmd));
+ *error = EINVAL;
+ return false;
+ }
+ }
+
+ return true; /* Command validates. */
+}
+
+/* This is called with the request lock held to actually execute the
+ * request (by calling the plugin). Note that the request fields have
+ * been validated already in 'validate_request' so we don't have to
+ * check them again.
+ *
+ * 'buf' is either the data to be written or the data to be returned,
+ * and points to a buffer of size 'count' bytes.
+ *
+ * 'extents' is an empty extents list used for block status requests
+ * only.
+ *
+ * In all cases, the return value is the system errno value that will
+ * later be converted to the nbd error to send back to the client (0
+ * for success).
+ */
+static uint32_t
+handle_request (struct connection *conn,
+ uint16_t cmd, uint16_t flags, uint64_t offset, uint32_t count,
+ void *buf, struct nbdkit_extents *extents)
+{
+ uint32_t f = 0;
+ bool fua = conn->can_fua && (flags & NBD_CMD_FLAG_FUA);
+ int err = 0;
+
+ /* Clear the error, so that we know if the plugin calls
+ * nbdkit_set_error() or relied on errno. */
+ threadlocal_set_error (0);
+
+ switch (cmd) {
+ case NBD_CMD_READ:
+ if (backend->pread (backend, conn, buf, count, offset, 0, &err) == -1)
+ return err;
+ break;
+
+ case NBD_CMD_WRITE:
+ if (fua)
+ f |= NBDKIT_FLAG_FUA;
+ if (backend->pwrite (backend, conn, buf, count, offset, f, &err) == -1)
+ return err;
+ break;
+
+ case NBD_CMD_FLUSH:
+ if (backend->flush (backend, conn, 0, &err) == -1)
+ return err;
+ break;
+
+ case NBD_CMD_TRIM:
+ if (fua)
+ f |= NBDKIT_FLAG_FUA;
+ if (backend->trim (backend, conn, count, offset, f, &err) == -1)
+ return err;
+ break;
+
+ case NBD_CMD_WRITE_ZEROES:
+ if (!(flags & NBD_CMD_FLAG_NO_HOLE))
+ f |= NBDKIT_FLAG_MAY_TRIM;
+ if (fua)
+ f |= NBDKIT_FLAG_FUA;
+ if (backend->zero (backend, conn, count, offset, f, &err) == -1)
+ return err;
+ break;
+
+ case NBD_CMD_BLOCK_STATUS:
+ /* The other backend methods don't check can_*. That is because
+ * those methods are implicitly suppressed by returning eflags to
+ * the client. However there is no eflag for extents so we must
+ * check it here.
+ */
+ if (conn->can_extents) {
+ if (flags & NBD_CMD_FLAG_REQ_ONE)
+ f |= NBDKIT_FLAG_REQ_ONE;
+ if (backend->extents (backend, conn, count, offset, f,
+ extents, &err) == -1)
+ return err;
+ }
+ else {
+ int r;
+
+ /* By default it is safe assume that everything in the range is
+ * allocated.
+ */
+ errno = 0;
+ r = nbdkit_add_extent (extents, offset, count, 0 /* allocated data */);
+ if (r == -1)
+ return errno ? errno : EINVAL;
+ return 0;
+ }
+ break;
+
+ default:
+ abort ();
+ }
+
+ return 0;
+}
+
+static int
+skip_over_write_buffer (int sock, size_t count)
+{
+ char buf[BUFSIZ];
+ ssize_t r;
+
+ if (count > MAX_REQUEST_SIZE * 2) {
+ nbdkit_error ("write request too large to skip");
+ return -1;
+ }
+
+ while (count > 0) {
+ r = read (sock, buf, count > BUFSIZ ? BUFSIZ : count);
+ if (r == -1) {
+ nbdkit_error ("skipping write buffer: %m");
+ return -1;
+ }
+ if (r == 0) {
+ nbdkit_error ("unexpected early EOF");
+ errno = EBADMSG;
+ return -1;
+ }
+ count -= r;
+ }
+ return 0;
+}
+
+/* Convert a system errno to an NBD_E* error code. */
+static int
+nbd_errno (int error, bool flag_df)
+{
+ switch (error) {
+ case 0:
+ return NBD_SUCCESS;
+ case EROFS:
+ case EPERM:
+ return NBD_EPERM;
+ case EIO:
+ return NBD_EIO;
+ case ENOMEM:
+ return NBD_ENOMEM;
+#ifdef EDQUOT
+ case EDQUOT:
+#endif
+ case EFBIG:
+ case ENOSPC:
+ return NBD_ENOSPC;
+#ifdef ESHUTDOWN
+ case ESHUTDOWN:
+ return NBD_ESHUTDOWN;
+#endif
+ case EOVERFLOW:
+ if (flag_df)
+ return NBD_EOVERFLOW;
+ /* fallthrough */
+ case EINVAL:
+ default:
+ return NBD_EINVAL;
+ }
+}
+
+static int
+send_simple_reply (struct connection *conn,
+ uint64_t handle, uint16_t cmd,
+ const char *buf, uint32_t count,
+ uint32_t error)
+{
+ ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&conn->write_lock);
+ struct simple_reply reply;
+ int r;
+
+ reply.magic = htobe32 (NBD_SIMPLE_REPLY_MAGIC);
+ reply.handle = handle;
+ reply.error = htobe32 (nbd_errno (error, false));
+
+ r = conn->send (conn, &reply, sizeof reply);
+ if (r == -1) {
+ nbdkit_error ("write reply: %s: %m", name_of_nbd_cmd (cmd));
+ return connection_set_status (conn, -1);
+ }
+
+ /* Send the read data buffer. */
+ if (cmd == NBD_CMD_READ && !error) {
+ r = conn->send (conn, buf, count);
+ if (r == -1) {
+ nbdkit_error ("write data: %s: %m", name_of_nbd_cmd (cmd));
+ return connection_set_status (conn, -1);
+ }
+ }
+
+ return 1; /* command processed ok */
+}
+
+static int
+send_structured_reply_read (struct connection *conn,
+ uint64_t handle, uint16_t cmd,
+ const char *buf, uint32_t count, uint64_t offset)
+{
+ /* Once we are really using structured replies and sending data back
+ * in chunks, we'll be able to grab the write lock for each chunk,
+ * allowing other threads to interleave replies. As we're not doing
+ * that yet we acquire the lock for the whole function.
+ */
+ ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&conn->write_lock);
+ struct structured_reply reply;
+ struct structured_reply_offset_data offset_data;
+ int r;
+
+ assert (cmd == NBD_CMD_READ);
+
+ reply.magic = htobe32 (NBD_STRUCTURED_REPLY_MAGIC);
+ reply.handle = handle;
+ reply.flags = htobe16 (NBD_REPLY_FLAG_DONE);
+ reply.type = htobe16 (NBD_REPLY_TYPE_OFFSET_DATA);
+ reply.length = htobe32 (count + sizeof offset_data);
+
+ r = conn->send (conn, &reply, sizeof reply);
+ if (r == -1) {
+ nbdkit_error ("write reply: %s: %m", name_of_nbd_cmd (cmd));
+ return connection_set_status (conn, -1);
+ }
+
+ /* Send the offset + read data buffer. */
+ offset_data.offset = htobe64 (offset);
+ r = conn->send (conn, &offset_data, sizeof offset_data);
+ if (r == -1) {
+ nbdkit_error ("write data: %s: %m", name_of_nbd_cmd (cmd));
+ return connection_set_status (conn, -1);
+ }
+
+ r = conn->send (conn, buf, count);
+ if (r == -1) {
+ nbdkit_error ("write data: %s: %m", name_of_nbd_cmd (cmd));
+ return connection_set_status (conn, -1);
+ }
+
+ return 1; /* command processed ok */
+}
+
+/* Convert a list of extents into NBD_REPLY_TYPE_BLOCK_STATUS blocks.
+ * The rules here are very complicated. Read the spec carefully!
+ */
+static struct block_descriptor *
+extents_to_block_descriptors (struct nbdkit_extents *extents,
+ uint16_t flags,
+ uint32_t count, uint64_t offset,
+ size_t *nr_blocks)
+{
+ const bool req_one = flags & NBD_CMD_FLAG_REQ_ONE;
+ const size_t nr_extents = nbdkit_extents_count (extents);
+ size_t i;
+ struct block_descriptor *blocks;
+
+ /* This is checked in server/plugins.c. */
+ assert (nr_extents >= 1);
+
+ /* We may send fewer than nr_extents blocks, but never more. */
+ blocks = calloc (req_one ? 1 : nr_extents, sizeof (struct block_descriptor));
+ if (blocks == NULL) {
+ nbdkit_error ("calloc: %m");
+ return NULL;
+ }
+
+ if (req_one) {
+ const struct nbdkit_extent e = nbdkit_get_extent (extents, 0);
+
+ /* Checked as a side effect of how the extent list is created. */
+ assert (e.length > 0);
+
+ *nr_blocks = 1;
+
+ /* Must not exceed count of the original request. */
+ blocks[0].length = MIN (e.length, (uint64_t) count);
+ blocks[0].status_flags = e.type & 3;
+ }
+ else {
+ uint64_t pos = offset;
+
+ *nr_blocks = 0;
+ for (i = 0; i < nr_extents; ++i) {
+ const struct nbdkit_extent e = nbdkit_get_extent (extents, i);
+ uint64_t length;
+
+ if (i == 0)
+ assert (e.offset == offset);
+
+ /* Must not exceed UINT32_MAX. */
+ blocks[i].length = length = MIN (e.length, UINT32_MAX);
+ blocks[i].status_flags = e.type & 3;
+ (*nr_blocks)++;
+
+ pos += length;
+ if (pos > offset + count) /* this must be the last block */
+ break;
+
+ /* If we reach here then we must have consumed this whole
+ * extent. This is currently true because the server only sends
+ * 32 bit requests, but if we move to 64 bit requests we will
+ * need to revisit this code so it can split extents into
+ * multiple blocks. XXX
+ */
+ assert (e.length <= length);
+ }
+ }
+
+#if 0
+ for (i = 0; i < *nr_blocks; ++i)
+ nbdkit_debug ("block status: sending block %" PRIu32 " type %" PRIu32,
+ blocks[i].length, blocks[i].status_flags);
+#endif
+
+ /* Convert to big endian for the protocol. */
+ for (i = 0; i < *nr_blocks; ++i) {
+ blocks[i].length = htobe32 (blocks[i].length);
+ blocks[i].status_flags = htobe32 (blocks[i].status_flags);
+ }
+
+ return blocks;
+}
+
+static int
+send_structured_reply_block_status (struct connection *conn,
+ uint64_t handle,
+ uint16_t cmd, uint16_t flags,
+ uint32_t count, uint64_t offset,
+ struct nbdkit_extents *extents)
+{
+ ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&conn->write_lock);
+ struct structured_reply reply;
+ CLEANUP_FREE struct block_descriptor *blocks = NULL;
+ size_t nr_blocks;
+ uint32_t context_id;
+ size_t i;
+ int r;
+
+ assert (conn->meta_context_base_allocation);
+ assert (cmd == NBD_CMD_BLOCK_STATUS);
+
+ blocks = extents_to_block_descriptors (extents, flags, count, offset,
+ &nr_blocks);
+ if (blocks == NULL)
+ return connection_set_status (conn, -1);
+
+ reply.magic = htobe32 (NBD_STRUCTURED_REPLY_MAGIC);
+ reply.handle = handle;
+ reply.flags = htobe16 (NBD_REPLY_FLAG_DONE);
+ reply.type = htobe16 (NBD_REPLY_TYPE_BLOCK_STATUS);
+ reply.length = htobe32 (sizeof context_id +
+ nr_blocks * sizeof (struct block_descriptor));
+
+ r = conn->send (conn, &reply, sizeof reply);
+ if (r == -1) {
+ nbdkit_error ("write reply: %s: %m", name_of_nbd_cmd (cmd));
+ return connection_set_status (conn, -1);
+ }
+
+ /* Send the base:allocation context ID. */
+ context_id = htobe32 (base_allocation_id);
+ r = conn->send (conn, &context_id, sizeof context_id);
+ if (r == -1) {
+ nbdkit_error ("write reply: %s: %m", name_of_nbd_cmd (cmd));
+ return connection_set_status (conn, -1);
+ }
+
+ /* Send each block descriptor. */
+ for (i = 0; i < nr_blocks; ++i) {
+ r = conn->send (conn, &blocks[i], sizeof blocks[i]);
+ if (r == -1) {
+ nbdkit_error ("write reply: %s: %m", name_of_nbd_cmd (cmd));
+ return connection_set_status (conn, -1);
+ }
+ }
+
+ return 1; /* command processed ok */
+}
+
+static int
+send_structured_reply_error (struct connection *conn,
+ uint64_t handle, uint16_t cmd, uint16_t flags,
+ uint32_t error)
+{
+ ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&conn->write_lock);
+ struct structured_reply reply;
+ struct structured_reply_error error_data;
+ int r;
+
+ reply.magic = htobe32 (NBD_STRUCTURED_REPLY_MAGIC);
+ reply.handle = handle;
+ reply.flags = htobe16 (NBD_REPLY_FLAG_DONE);
+ reply.type = htobe16 (NBD_REPLY_TYPE_ERROR);
+ reply.length = htobe32 (0 /* no human readable error */ + sizeof error_data);
+
+ r = conn->send (conn, &reply, sizeof reply);
+ if (r == -1) {
+ nbdkit_error ("write error reply: %m");
+ return connection_set_status (conn, -1);
+ }
+
+ /* Send the error. */
+ error_data.error = htobe32 (nbd_errno (error, flags & NBD_CMD_FLAG_DF));
+ error_data.len = htobe16 (0);
+ r = conn->send (conn, &error_data, sizeof error_data);
+ if (r == -1) {
+ nbdkit_error ("write data: %s: %m", name_of_nbd_cmd (cmd));
+ return connection_set_status (conn, -1);
+ }
+ /* No human readable error message at the moment. */
+
+ return 1; /* command processed ok */
+}
+
+int
+protocol_recv_request_send_reply (struct connection *conn)
+{
+ int r;
+ struct request request;
+ uint16_t cmd, flags;
+ uint32_t magic, count, error = 0;
+ uint64_t offset;
+ char *buf = NULL;
+ CLEANUP_EXTENTS_FREE struct nbdkit_extents *extents = NULL;
+
+ /* Read the request packet. */
+ {
+ ACQUIRE_LOCK_FOR_CURRENT_SCOPE (&conn->read_lock);
+ r = connection_get_status (conn);
+ if (r <= 0)
+ return r;
+ r = conn->recv (conn, &request, sizeof request);
+ if (r == -1) {
+ nbdkit_error ("read request: %m");
+ return connection_set_status (conn, -1);
+ }
+ if (r == 0) {
+ debug ("client closed input socket, closing connection");
+ return connection_set_status (conn, 0); /* disconnect */
+ }
+
+ magic = be32toh (request.magic);
+ if (magic != NBD_REQUEST_MAGIC) {
+ nbdkit_error ("invalid request: 'magic' field is incorrect (0x%x)",
+ magic);
+ return connection_set_status (conn, -1);
+ }
+
+ flags = be16toh (request.flags);
+ cmd = be16toh (request.type);
+
+ offset = be64toh (request.offset);
+ count = be32toh (request.count);
+
+ if (cmd == NBD_CMD_DISC) {
+ debug ("client sent %s, closing connection", name_of_nbd_cmd (cmd));
+ return connection_set_status (conn, 0); /* disconnect */
+ }
+
+ /* Validate the request. */
+ if (!validate_request (conn, cmd, flags, offset, count, &error)) {
+ if (cmd == NBD_CMD_WRITE &&
+ skip_over_write_buffer (conn->sockin, count) < 0)
+ return connection_set_status (conn, -1);
+ goto send_reply;
+ }
+
+ /* Get the data buffer used for either read or write requests.
+ * This is a common per-thread data buffer, it must not be freed.
+ */
+ if (cmd == NBD_CMD_READ || cmd == NBD_CMD_WRITE) {
+ buf = threadlocal_buffer ((size_t) count);
+ if (buf == NULL) {
+ error = ENOMEM;
+ if (cmd == NBD_CMD_WRITE &&
+ skip_over_write_buffer (conn->sockin, count) < 0)
+ return connection_set_status (conn, -1);
+ goto send_reply;
+ }
+ }
+
+ /* Allocate the extents list for block status only. */
+ if (cmd == NBD_CMD_BLOCK_STATUS) {
+ extents = nbdkit_extents_new (offset, conn->exportsize);
+ if (extents == NULL) {
+ error = ENOMEM;
+ goto send_reply;
+ }
+ }
+
+ /* Receive the write data buffer. */
+ if (cmd == NBD_CMD_WRITE) {
+ r = conn->recv (conn, buf, count);
+ if (r == 0) {
+ errno = EBADMSG;
+ r = -1;
+ }
+ if (r == -1) {
+ nbdkit_error ("read data: %s: %m", name_of_nbd_cmd (cmd));
+ return connection_set_status (conn, -1);
+ }
+ }
+ }
+
+ /* Perform the request. Only this part happens inside the request lock. */
+ if (quit || !connection_get_status (conn)) {
+ error = ESHUTDOWN;
+ }
+ else {
+ lock_request (conn);
+ error = handle_request (conn, cmd, flags, offset, count, buf, extents);
+ assert ((int) error >= 0);
+ unlock_request (conn);
+ }
+
+ /* Send the reply packet. */
+ send_reply:
+ if (connection_get_status (conn) < 0)
+ return -1;
+
+ if (error != 0) {
+ /* Since we're about to send only the limited NBD_E* errno to the
+ * client, don't lose the information about what really happened
+ * on the server side. Make sure there is a way for the operator
+ * to retrieve the real error.
+ */
+ debug ("sending error reply: %s", strerror (error));
+ }
+
+ /* Currently we prefer to send simple replies for everything except
+ * where we have to (ie. NBD_CMD_READ and NBD_CMD_BLOCK_STATUS when
+ * structured_replies have been negotiated). However this prevents
+ * us from sending human-readable error messages to the client, so
+ * we should reconsider this in future.
+ */
+ if (conn->structured_replies &&
+ (cmd == NBD_CMD_READ || cmd == NBD_CMD_BLOCK_STATUS)) {
+ if (!error) {
+ if (cmd == NBD_CMD_READ)
+ return send_structured_reply_read (conn, request.handle, cmd,
+ buf, count, offset);
+ else /* NBD_CMD_BLOCK_STATUS */
+ return send_structured_reply_block_status (conn, request.handle,
+ cmd, flags,
+ count, offset,
+ extents);
+ }
+ else
+ return send_structured_reply_error (conn, request.handle, cmd, flags,
+ error);
+ }
+ else
+ return send_simple_reply (conn, request.handle, cmd, buf, count, error);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <unistd.h>
+
+#include "internal.h"
+
+/* Detection of request to exit via signal. Most places in the code
+ * can just poll quit at opportune moments, while sockets.c needs a
+ * pipe-to-self through quit_fd in order to break a poll loop without
+ * a race.
+ */
+volatile int quit;
+int quit_fd;
+static int write_quit_fd;
+
+void
+set_up_quit_pipe (void)
+{
+ int fds[2];
+
+ if (pipe (fds) < 0) {
+ perror ("pipe");
+ exit (EXIT_FAILURE);
+ }
+ quit_fd = fds[0];
+ write_quit_fd = fds[1];
+}
+
+void
+handle_quit (int sig)
+{
+ set_quit ();
+}
+
+void
+set_quit (void)
+{
+ char c = 0;
+
+ quit = 1;
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-result"
+ write (write_quit_fd, &c, 1);
+#pragma GCC diagnostic pop
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <signal.h>
+
+#include "internal.h"
+
+/* Set up signal handlers. */
+void
+set_up_signals (void)
+{
+ struct sigaction sa;
+
+ memset (&sa, 0, sizeof sa);
+ sa.sa_flags = SA_RESTART;
+ sa.sa_handler = handle_quit;
+ sigaction (SIGINT, &sa, NULL);
+ sigaction (SIGQUIT, &sa, NULL);
+ sigaction (SIGTERM, &sa, NULL);
+ sigaction (SIGHUP, &sa, NULL);
+
+ memset (&sa, 0, sizeof sa);
+ sa.sa_flags = SA_RESTART;
+ sa.sa_handler = SIG_IGN;
+ sigaction (SIGPIPE, &sa, NULL);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+
+#include "internal.h"
+
+/* Handle socket activation. This is controlled through special
+ * environment variables inherited by nbdkit. Returns 0 if no socket
+ * activation. Otherwise returns the number of FDs. See also
+ * virGetListenFDs in libvirt.org:src/util/virutil.c
+ */
+unsigned int
+get_socket_activation (void)
+{
+ const char *s;
+ unsigned int pid;
+ unsigned int nr_fds;
+ unsigned int i;
+ int fd;
+
+ s = getenv ("LISTEN_PID");
+ if (s == NULL)
+ return 0;
+ if (sscanf (s, "%u", &pid) != 1) {
+ fprintf (stderr, "%s: malformed %s environment variable (ignored)\n",
+ program_name, "LISTEN_PID");
+ return 0;
+ }
+ if (pid != getpid ()) {
+ fprintf (stderr, "%s: %s was not for us (ignored)\n",
+ program_name, "LISTEN_PID");
+ return 0;
+ }
+
+ s = getenv ("LISTEN_FDS");
+ if (s == NULL)
+ return 0;
+ if (sscanf (s, "%u", &nr_fds) != 1) {
+ fprintf (stderr, "%s: malformed %s environment variable (ignored)\n",
+ program_name, "LISTEN_FDS");
+ return 0;
+ }
+
+ /* So these are not passed to any child processes we might start. */
+ unsetenv ("LISTEN_FDS");
+ unsetenv ("LISTEN_PID");
+
+ /* So the file descriptors don't leak into child processes. */
+ for (i = 0; i < nr_fds; ++i) {
+ fd = FIRST_SOCKET_ACTIVATION_FD + i;
+ if (fcntl (fd, F_SETFD, FD_CLOEXEC) == -1) {
+ /* If we cannot set FD_CLOEXEC then it probably means the file
+ * descriptor is invalid, so socket activation has gone wrong
+ * and we should exit.
+ */
+ fprintf (stderr, "%s: socket activation: "
+ "invalid file descriptor fd = %d: %s\n",
+ program_name, fd, strerror(errno));
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ return nr_fds;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <netdb.h>
+#include <poll.h>
+#include <errno.h>
+#include <assert.h>
+
+#ifdef HAVE_LIBSELINUX
+#include <selinux/selinux.h>
+#endif
+
+#include <pthread.h>
+
+#include "internal.h"
+
+static void
+set_selinux_label (void)
+{
+ if (selinux_label) {
+#ifdef HAVE_LIBSELINUX
+ if (setsockcreatecon_raw (selinux_label) == -1) {
+ perror ("selinux-label: setsockcreatecon_raw");
+ exit (EXIT_FAILURE);
+ }
+#else
+ fprintf (stderr,
+ "%s: --selinux-label option used, but "
+ "this binary was compiled without SELinux support\n",
+ program_name);
+ exit (EXIT_FAILURE);
+#endif
+ }
+}
+
+static void
+clear_selinux_label (void)
+{
+#ifdef HAVE_LIBSELINUX
+ if (selinux_label) {
+ if (setsockcreatecon_raw (NULL) == -1) {
+ perror ("selinux-label: setsockcreatecon_raw(NULL)");
+ exit (EXIT_FAILURE);
+ }
+ }
+#endif
+}
+
+int *
+bind_unix_socket (size_t *nr_socks)
+{
+ size_t len;
+ int sock;
+ struct sockaddr_un addr;
+ int *ret;
+
+ assert (unixsocket);
+ assert (unixsocket[0] == '/');
+
+ len = strlen (unixsocket);
+ if (len >= UNIX_PATH_MAX) {
+ fprintf (stderr, "%s: -U: path too long: length %zu > max %d bytes\n",
+ program_name, len, UNIX_PATH_MAX-1);
+ exit (EXIT_FAILURE);
+ }
+
+ set_selinux_label ();
+
+ sock = socket (AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0);
+ if (sock == -1) {
+ perror ("bind_unix_socket: socket");
+ exit (EXIT_FAILURE);
+ }
+
+ addr.sun_family = AF_UNIX;
+ memcpy (addr.sun_path, unixsocket, len+1 /* trailing \0 */);
+
+ if (bind (sock, (struct sockaddr *) &addr, sizeof addr) == -1) {
+ perror (unixsocket);
+ exit (EXIT_FAILURE);
+ }
+
+ if (listen (sock, SOMAXCONN) == -1) {
+ perror ("listen");
+ exit (EXIT_FAILURE);
+ }
+
+ clear_selinux_label ();
+
+ ret = malloc (sizeof (int));
+ if (!ret) {
+ perror ("malloc");
+ exit (EXIT_FAILURE);
+ }
+ ret[0] = sock;
+ *nr_socks = 1;
+
+ debug ("bound to unix socket %s", unixsocket);
+
+ return ret;
+}
+
+int *
+bind_tcpip_socket (size_t *nr_socks)
+{
+ struct addrinfo *ai = NULL;
+ struct addrinfo hints;
+ struct addrinfo *a;
+ int err, opt;
+ int *socks = NULL;
+ bool addr_in_use = false;
+
+ if (port == NULL)
+ port = "10809";
+
+ memset (&hints, 0, sizeof hints);
+ hints.ai_flags = AI_PASSIVE | AI_ADDRCONFIG;
+ hints.ai_socktype = SOCK_STREAM;
+
+ err = getaddrinfo (ipaddr, port, &hints, &ai);
+ if (err != 0) {
+ fprintf (stderr, "%s: getaddrinfo: %s: %s: %s",
+ program_name,
+ ipaddr ? ipaddr : "<any>",
+ port,
+ gai_strerror (err));
+ exit (EXIT_FAILURE);
+ }
+
+ *nr_socks = 0;
+
+ for (a = ai; a != NULL; a = a->ai_next) {
+ int sock;
+
+ set_selinux_label ();
+
+ sock = socket (a->ai_family, a->ai_socktype, a->ai_protocol);
+ if (sock == -1) {
+ perror ("bind_tcpip_socket: socket");
+ exit (EXIT_FAILURE);
+ }
+
+ opt = 1;
+ if (setsockopt (sock, SOL_SOCKET, SO_REUSEADDR, &opt, sizeof opt) == -1)
+ perror ("setsockopt: SO_REUSEADDR");
+
+#ifdef IPV6_V6ONLY
+ if (a->ai_family == PF_INET6) {
+ if (setsockopt (sock, IPPROTO_IPV6, IPV6_V6ONLY, &opt, sizeof opt) == -1)
+ perror ("setsockopt: IPv6 only");
+ }
+#endif
+
+ if (bind (sock, a->ai_addr, a->ai_addrlen) == -1) {
+ if (errno == EADDRINUSE) {
+ addr_in_use = true;
+ close (sock);
+ continue;
+ }
+ perror ("bind");
+ exit (EXIT_FAILURE);
+ }
+
+ if (listen (sock, SOMAXCONN) == -1) {
+ perror ("listen");
+ exit (EXIT_FAILURE);
+ }
+
+ clear_selinux_label ();
+
+ (*nr_socks)++;
+ socks = realloc (socks, sizeof (int) * (*nr_socks));
+ if (!socks) {
+ perror ("realloc");
+ exit (EXIT_FAILURE);
+ }
+ socks[*nr_socks - 1] = sock;
+ }
+
+ freeaddrinfo (ai);
+
+ if (*nr_socks == 0 && addr_in_use) {
+ fprintf (stderr, "%s: unable to bind to any sockets: %s\n",
+ program_name, strerror (EADDRINUSE));
+ exit (EXIT_FAILURE);
+ }
+
+ debug ("bound to IP address %s:%s (%zu socket(s))",
+ ipaddr ? ipaddr : "<any>", port, *nr_socks);
+
+ return socks;
+}
+
+void
+free_listening_sockets (int *socks, size_t nr_socks)
+{
+ size_t i;
+
+ for (i = 0; i < nr_socks; ++i)
+ close (socks[i]);
+ free (socks);
+}
+
+struct thread_data {
+ int sock;
+ size_t instance_num;
+ struct sockaddr addr;
+ socklen_t addrlen;
+};
+
+static void *
+start_thread (void *datav)
+{
+ struct thread_data *data = datav;
+
+ debug ("accepted connection");
+
+ /* Set thread-local data. */
+ threadlocal_new_server_thread ();
+ threadlocal_set_instance_num (data->instance_num);
+ threadlocal_set_sockaddr (&data->addr, data->addrlen);
+
+ handle_single_connection (data->sock, data->sock);
+
+ free (data);
+ return NULL;
+}
+
+static void
+accept_connection (int listen_sock)
+{
+ int err;
+ pthread_attr_t attrs;
+ pthread_t thread;
+ struct thread_data *thread_data;
+ static size_t instance_num = 1;
+
+ thread_data = malloc (sizeof *thread_data);
+ if (!thread_data) {
+ perror ("malloc");
+ return;
+ }
+
+ thread_data->instance_num = instance_num++;
+ thread_data->addrlen = sizeof thread_data->addr;
+ again:
+ thread_data->sock = accept (listen_sock,
+ &thread_data->addr, &thread_data->addrlen);
+ if (thread_data->sock == -1) {
+ if (errno == EINTR || errno == EAGAIN)
+ goto again;
+ perror ("accept");
+ free (thread_data);
+ return;
+ }
+
+ /* Start a thread to handle this connection. Note we always do this
+ * even for non-threaded plugins. There are mutexes in plugins.c
+ * which ensure that non-threaded plugins are handled correctly.
+ */
+ pthread_attr_init (&attrs);
+ pthread_attr_setdetachstate (&attrs, PTHREAD_CREATE_DETACHED);
+ err = pthread_create (&thread, &attrs, start_thread, thread_data);
+ pthread_attr_destroy (&attrs);
+ if (err != 0) {
+ fprintf (stderr, "%s: pthread_create: %s\n", program_name, strerror (err));
+ close (thread_data->sock);
+ free (thread_data);
+ return;
+ }
+
+ /* If the thread starts successfully, then it is responsible for
+ * closing the socket and freeing thread_data.
+ */
+}
+
+/* Check the list of sockets plus quit_fd until a POLLIN event occurs
+ * on any of them.
+ *
+ * If POLLIN occurs on quit_fd do nothing except returning early
+ * (don't call accept_connection in this case).
+ *
+ * If POLLIN occurs on one of the sockets, call
+ * accept_connection (socks[i]) on each of them.
+ */
+static void
+check_sockets_and_quit_fd (int *socks, size_t nr_socks)
+{
+ struct pollfd fds[nr_socks + 1];
+ size_t i;
+ int r;
+
+ for (i = 0; i < nr_socks; ++i) {
+ fds[i].fd = socks[i];
+ fds[i].events = POLLIN;
+ fds[i].revents = 0;
+ }
+ fds[nr_socks].fd = quit_fd;
+ fds[nr_socks].events = POLLIN;
+ fds[nr_socks].revents = 0;
+
+ r = poll (fds, nr_socks + 1, -1);
+ if (r == -1) {
+ if (errno == EINTR || errno == EAGAIN)
+ return;
+ perror ("poll");
+ exit (EXIT_FAILURE);
+ }
+
+ /* We don't even have to read quit_fd - just knowing that it has
+ * data means the signal handler ran, so we are ready to quit the
+ * loop.
+ */
+ if (fds[nr_socks].revents & POLLIN)
+ return;
+
+ for (i = 0; i < nr_socks; ++i) {
+ if (fds[i].revents & POLLIN)
+ accept_connection (socks[i]);
+ }
+}
+
+void
+accept_incoming_connections (int *socks, size_t nr_socks)
+{
+ while (!quit)
+ check_sockets_and_quit_fd (socks, nr_socks);
+}
--- /dev/null
+"nbdkit [-D|--debug PLUGIN|FILTER.FLAG=N]\n"
+" [-e|--exportname EXPORTNAME] [--exit-with-parent]\n"
+" [--filter FILTER ...] [-f|--foreground]\n"
+" [-g|--group GROUP] [-i|--ipaddr IPADDR]\n"
+" [--log stderr|syslog]\n"
+" [-n|--newstyle] [-o|--oldstyle]\n"
+" [-P|--pidfile PIDFILE]\n"
+" [-p|--port PORT] [-r|--readonly]\n"
+" [--run CMD] [-s|--single] [--selinux-label LABEL]\n"
+" [-t|--threads THREADS]\n"
+" [--tls off|on|require]\n"
+" [--tls-certificates /path/to/certificates]\n"
+" [--tls-psk /path/to/pskfile] [--tls-verify-peer]\n"
+" [-U|--unix SOCKET] [-u|--user USER]\n"
+" [-v|--verbose] [-V|--version]\n"
+" PLUGIN [[KEY=]VALUE [KEY=VALUE [...]]]\n"
+"\n"
+"nbdkit --dump-config\n"
+"\n"
+"nbdkit PLUGIN --dump-plugin\n"
+"\n"
+"nbdkit --help\n"
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <inttypes.h>
+#include <stdbool.h>
+
+#include "internal.h"
+
+static bool error_flagged;
+
+/* Stub for linking against minimal source files, and for proving that
+ * an error message is issued when expected. */
+void
+nbdkit_error (const char *fs, ...)
+{
+ error_flagged = true;
+}
+
+static bool
+test_nbdkit_parse_size (void)
+{
+ bool pass = true;
+ struct pair {
+ const char *str;
+ int64_t res;
+ } pairs[] = {
+ /* Bogus strings */
+ { "", -1 },
+ { "0x0", -1 },
+ { "garbage", -1 },
+ { "0garbage", -1 },
+ { "8E", -1 },
+ { "8192P", -1 },
+
+ /* Strings leading to overflow */
+ { "9223372036854775808", -1 }, /* INT_MAX + 1 */
+ { "18446744073709551614", -1 }, /* UINT64_MAX - 1 */
+ { "18446744073709551615", -1 }, /* UINT64_MAX */
+ { "18446744073709551616", -1 }, /* UINT64_MAX + 1 */
+ { "999999999999999999999999", -1 },
+
+ /* Strings representing negative values */
+ { "-1", -1 },
+ { "-2", -1 },
+ { "-9223372036854775809", -1 }, /* INT64_MIN - 1 */
+ { "-9223372036854775808", -1 }, /* INT64_MIN */
+ { "-9223372036854775807", -1 }, /* INT64_MIN + 1 */
+ { "-18446744073709551616", -1 }, /* -UINT64_MAX - 1 */
+ { "-18446744073709551615", -1 }, /* -UINT64_MAX */
+ { "-18446744073709551614", -1 }, /* -UINT64_MAX + 1 */
+
+ /* Strings we may want to support in the future */
+ { "M", -1 },
+ { "1MB", -1 },
+ { "1MiB", -1 },
+ { "1.5M", -1 },
+
+ /* Valid strings */
+ { "-0", 0 },
+ { "0", 0 },
+ { "+0", 0 },
+ { " 08", 8 },
+ { "1", 1 },
+ { "+1", 1 },
+ { "1234567890", 1234567890 },
+ { "+1234567890", 1234567890 },
+ { "9223372036854775807", INT64_MAX },
+ { "1s", 512 },
+ { "2S", 1024 },
+ { "1b", 1 },
+ { "1B", 1 },
+ { "1k", 1024 },
+ { "1K", 1024 },
+ { "1m", 1024 * 1024 },
+ { "1M", 1024 * 1024 },
+ { "+1M", 1024 * 1024 },
+ { "1g", 1024 * 1024 * 1024 },
+ { "1G", 1024 * 1024 * 1024 },
+ { "1t", 1024LL * 1024 * 1024 * 1024 },
+ { "1T", 1024LL * 1024 * 1024 * 1024 },
+ { "1p", 1024LL * 1024 * 1024 * 1024 * 1024 },
+ { "1P", 1024LL * 1024 * 1024 * 1024 * 1024 },
+ { "8191p", 1024LL * 1024 * 1024 * 1024 * 1024 * 8191 },
+ { "1e", 1024LL * 1024 * 1024 * 1024 * 1024 * 1024 },
+ { "1E", 1024LL * 1024 * 1024 * 1024 * 1024 * 1024 },
+ };
+
+ for (size_t i = 0; i < sizeof pairs / sizeof pairs[0]; i++) {
+ int64_t r;
+
+ error_flagged = false;
+ r = nbdkit_parse_size (pairs[i].str);
+ if (r != pairs[i].res) {
+ fprintf (stderr,
+ "Wrong parse for %s, got %" PRId64 ", expected %" PRId64 "\n",
+ pairs[i].str, r, pairs[i].res);
+ pass = false;
+ }
+ if ((r == -1) != error_flagged) {
+ fprintf (stderr, "Wrong error message handling for %s\n", pairs[i].str);
+ pass = false;
+ }
+ }
+
+ return pass;
+}
+
+int
+main (int argc, char *argv[])
+{
+ bool pass = true;
+ pass &= test_nbdkit_parse_size ();
+ /* XXX add tests for nbdkit_absolute_path, nbdkit_read_password */
+ return pass ? 0 : 1;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+#include <unistd.h>
+#include <assert.h>
+#include <errno.h>
+
+#include <pthread.h>
+
+#include "internal.h"
+
+/* Note that most thread-local storage data is informational, used for
+ * smart error and debug messages on the server side. However, error
+ * tracking can be used to influence which error is sent to the client
+ * in a reply.
+ *
+ * The main thread does not have any associated Thread Local Storage,
+ * *unless* it is serving a request (the '-s' option).
+ */
+
+struct threadlocal {
+ char *name; /* Can be NULL. */
+ size_t instance_num; /* Can be 0. */
+ struct sockaddr *addr;
+ socklen_t addrlen;
+ int err;
+ void *buffer;
+ size_t buffer_size;
+};
+
+static pthread_key_t threadlocal_key;
+
+static void
+free_threadlocal (void *threadlocalv)
+{
+ struct threadlocal *threadlocal = threadlocalv;
+
+ free (threadlocal->name);
+ free (threadlocal->addr);
+ free (threadlocal->buffer);
+ free (threadlocal);
+}
+
+void
+threadlocal_init (void)
+{
+ int err;
+
+ err = pthread_key_create (&threadlocal_key, free_threadlocal);
+ if (err != 0) {
+ fprintf (stderr, "%s: pthread_key_create: %s\n",
+ program_name, strerror (err));
+ exit (EXIT_FAILURE);
+ }
+}
+
+void
+threadlocal_new_server_thread (void)
+{
+ struct threadlocal *threadlocal;
+ int err;
+
+ threadlocal = calloc (1, sizeof *threadlocal);
+ if (threadlocal == NULL) {
+ perror ("malloc");
+ exit (EXIT_FAILURE);
+ }
+ err = pthread_setspecific (threadlocal_key, threadlocal);
+ if (err) {
+ errno = err;
+ perror ("pthread_setspecific");
+ exit (EXIT_FAILURE);
+ }
+}
+
+void
+threadlocal_set_name (const char *name)
+{
+ struct threadlocal *threadlocal = pthread_getspecific (threadlocal_key);
+
+ /* Copy name, as the original may be residing in a module, but we
+ * want our thread name to persist even after unload. */
+ if (threadlocal) {
+ free (threadlocal->name);
+ threadlocal->name = strdup (name);
+ /* Best effort; logging a NULL name is better than exiting. */
+ if (threadlocal->name == NULL)
+ perror ("malloc");
+ }
+}
+
+void
+threadlocal_set_instance_num (size_t instance_num)
+{
+ struct threadlocal *threadlocal = pthread_getspecific (threadlocal_key);
+
+ if (threadlocal)
+ threadlocal->instance_num = instance_num;
+}
+
+void
+threadlocal_set_sockaddr (const struct sockaddr *addr, socklen_t addrlen)
+{
+ struct threadlocal *threadlocal = pthread_getspecific (threadlocal_key);
+
+ if (threadlocal) {
+ free (threadlocal->addr);
+ threadlocal->addr = calloc (1, addrlen);
+ if (threadlocal->addr == NULL) {
+ perror ("calloc");
+ exit (EXIT_FAILURE);
+ }
+ memcpy (threadlocal->addr, addr, addrlen);
+ }
+}
+
+const char *
+threadlocal_get_name (void)
+{
+ struct threadlocal *threadlocal = pthread_getspecific (threadlocal_key);
+
+ if (!threadlocal)
+ return NULL;
+
+ return threadlocal->name;
+}
+
+size_t
+threadlocal_get_instance_num (void)
+{
+ struct threadlocal *threadlocal = pthread_getspecific (threadlocal_key);
+
+ if (!threadlocal)
+ return 0;
+
+ return threadlocal->instance_num;
+}
+
+void
+threadlocal_set_error (int err)
+{
+ struct threadlocal *threadlocal = pthread_getspecific (threadlocal_key);
+
+ if (threadlocal)
+ threadlocal->err = err;
+ else
+ errno = err;
+}
+
+/* This preserves errno, for convenience.
+ */
+int
+threadlocal_get_error (void)
+{
+ int err = errno;
+ struct threadlocal *threadlocal = pthread_getspecific (threadlocal_key);
+
+ errno = err;
+ return threadlocal ? threadlocal->err : 0;
+}
+
+/* Return the single pread/pwrite buffer for this thread. The buffer
+ * size is increased to ‘size’ bytes if required.
+ *
+ * The buffer starts out as zeroes but after use may contain data from
+ * previous requests. This is fine because: (a) Correctly written
+ * plugins should overwrite the whole buffer on each request so no
+ * leak should occur. (b) The aim of this buffer is to avoid leaking
+ * random heap data from the core server; previous request data from
+ * the plugin is not considered sensitive.
+ */
+extern void *
+threadlocal_buffer (size_t size)
+{
+ struct threadlocal *threadlocal = pthread_getspecific (threadlocal_key);
+
+ if (!threadlocal)
+ abort ();
+
+ if (threadlocal->buffer_size < size) {
+ void *ptr;
+
+ ptr = realloc (threadlocal->buffer, size);
+ if (ptr == NULL) {
+ nbdkit_error ("threadlocal_buffer: realloc: %m");
+ return NULL;
+ }
+ memset (ptr, 0, size);
+ threadlocal->buffer = ptr;
+ threadlocal->buffer_size = size;
+ }
+
+ return threadlocal->buffer;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <unistd.h>
+#include <pwd.h>
+#include <grp.h>
+#include <errno.h>
+#include <sys/types.h>
+
+#include "internal.h"
+
+static uid_t parseuser (const char *);
+static gid_t parsegroup (const char *);
+
+/* Handle the -u and -g options. If user and group are non-NULL
+ * then this parses them to work out the UID/GID and changes
+ * user and group.
+ */
+void
+change_user (void)
+{
+ if (group) {
+ gid_t gid = parsegroup (group);
+
+ if (setgid (gid) == -1) {
+ perror ("setgid");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Kill supplemental groups from parent process. */
+ if (setgroups (1, &gid) == -1) {
+ perror ("setgroups");
+ exit (EXIT_FAILURE);
+ }
+
+ debug ("changed group to %s", group);
+ }
+
+ if (user) {
+ uid_t uid = parseuser (user);
+
+ if (setuid (uid) == -1) {
+ perror ("setuid");
+ exit (EXIT_FAILURE);
+ }
+
+ debug ("changed user to %s", user);
+ }
+}
+
+static uid_t
+parseuser (const char *id)
+{
+ struct passwd *pwd;
+ int saved_errno;
+
+ errno = 0;
+ pwd = getpwnam (id);
+
+ if (NULL == pwd) {
+ int val;
+
+ saved_errno = errno;
+
+ if (sscanf (id, "%d", &val) == 1)
+ return val;
+
+ fprintf (stderr, "%s: -u option: %s is not a valid user name or uid",
+ program_name, id);
+ if (saved_errno != 0)
+ fprintf (stderr, " (getpwnam error: %s)", strerror (saved_errno));
+ fprintf (stderr, "\n");
+ exit (EXIT_FAILURE);
+ }
+
+ return pwd->pw_uid;
+}
+
+static gid_t
+parsegroup (const char *id)
+{
+ struct group *grp;
+ int saved_errno;
+
+ errno = 0;
+ grp = getgrnam (id);
+
+ if (NULL == grp) {
+ int val;
+
+ saved_errno = errno;
+
+ if (sscanf (id, "%d", &val) == 1)
+ return val;
+
+ fprintf (stderr, "%s: -g option: %s is not a valid group name or gid",
+ program_name, id);
+ if (saved_errno != 0)
+ fprintf (stderr, " (getgrnam error: %s)", strerror (saved_errno));
+ fprintf (stderr, "\n");
+ exit (EXIT_FAILURE);
+ }
+
+ return grp->gr_gid;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <limits.h>
+#include <termios.h>
+#include <errno.h>
+
+#include "get-current-dir-name.h"
+
+#include "internal.h"
+
+char *
+nbdkit_absolute_path (const char *path)
+{
+ CLEANUP_FREE char *pwd = NULL;
+ char *ret;
+
+ if (path == NULL || *path == '\0') {
+ nbdkit_error ("cannot convert null or empty path to an absolute path");
+ return NULL;
+ }
+
+ if (*path == '/') {
+ ret = strdup (path);
+ if (!ret) {
+ nbdkit_error ("strdup: %m");
+ return NULL;
+ }
+ return ret;
+ }
+
+ pwd = get_current_dir_name ();
+ if (pwd == NULL) {
+ nbdkit_error ("get_current_dir_name: %m");
+ return NULL;
+ }
+
+ if (asprintf (&ret, "%s/%s", pwd, path) == -1) {
+ nbdkit_error ("asprintf: %m");
+ return NULL;
+ }
+
+ return ret;
+}
+
+/* Parse a string as a size with possible scaling suffix, or return -1
+ * after reporting the error.
+ */
+int64_t
+nbdkit_parse_size (const char *str)
+{
+ int64_t size;
+ char *end;
+ uint64_t scale = 1;
+
+ /* Disk sizes cannot usefully exceed off_t (which is signed) and
+ * cannot be negative. */
+ /* XXX Should we also parse things like '1.5M'? */
+ /* XXX Should we allow hex? If so, hex cannot use scaling suffixes,
+ * because some of them are valid hex digits */
+ errno = 0;
+ size = strtoimax (str, &end, 10);
+ if (str == end) {
+ nbdkit_error ("could not parse size string (%s)", str);
+ return -1;
+ }
+ if (size < 0) {
+ nbdkit_error ("size cannot be negative (%s)", str);
+ return -1;
+ }
+ if (errno) {
+ nbdkit_error ("size (%s) exceeds maximum value", str);
+ return -1;
+ }
+
+ switch (*end) {
+ /* No suffix */
+ case '\0':
+ end--; /* Safe, since we already filtered out empty string */
+ break;
+
+ /* Powers of 1024 */
+ case 'e': case 'E':
+ scale *= 1024;
+ /* fallthru */
+ case 'p': case 'P':
+ scale *= 1024;
+ /* fallthru */
+ case 't': case 'T':
+ scale *= 1024;
+ /* fallthru */
+ case 'g': case 'G':
+ scale *= 1024;
+ /* fallthru */
+ case 'm': case 'M':
+ scale *= 1024;
+ /* fallthru */
+ case 'k': case 'K':
+ scale *= 1024;
+ /* fallthru */
+ case 'b': case 'B':
+ break;
+
+ /* "sectors", ie. units of 512 bytes, even if that's not the real
+ * sector size */
+ case 's': case 'S':
+ scale = 512;
+ break;
+
+ default:
+ nbdkit_error ("could not parse size: unknown suffix '%s'", end);
+ return -1;
+ }
+
+ /* XXX Maybe we should support 'MiB' as a synonym for 'M'; and 'MB'
+ * for powers of 1000, for similarity to GNU tools. But for now,
+ * anything beyond 'M' is dropped. */
+ if (end[1]) {
+ nbdkit_error ("could not parse size: unknown suffix '%s'", end);
+ return -1;
+ }
+
+ if (INT64_MAX / scale < size) {
+ nbdkit_error ("overflow computing size (%s)", str);
+ return -1;
+ }
+
+ return size * scale;
+}
+
+/* Parse a string as a boolean, or return -1 after reporting the error.
+ */
+int
+nbdkit_parse_bool (const char *str)
+{
+ if (!strcmp (str, "1") ||
+ !strcasecmp (str, "true") ||
+ !strcasecmp (str, "t") ||
+ !strcasecmp (str, "yes") ||
+ !strcasecmp (str, "y") ||
+ !strcasecmp (str, "on"))
+ return 1;
+
+ if (!strcmp (str, "0") ||
+ !strcasecmp (str, "false") ||
+ !strcasecmp (str, "f") ||
+ !strcasecmp (str, "no") ||
+ !strcasecmp (str, "n") ||
+ !strcasecmp (str, "off"))
+ return 0;
+
+ nbdkit_error ("could not decipher boolean (%s)", str);
+ return -1;
+}
+
+/* Read a password from configuration value. */
+int
+nbdkit_read_password (const char *value, char **password)
+{
+ int tty, err;
+ struct termios orig, temp;
+ ssize_t r;
+ size_t n;
+ FILE *fp;
+
+ /* Read from stdin. */
+ if (strcmp (value, "-") == 0) {
+ printf ("password: ");
+
+ /* Set no echo. */
+ tty = isatty (0);
+ if (tty) {
+ tcgetattr (0, &orig);
+ temp = orig;
+ temp.c_lflag &= ~ECHO;
+ tcsetattr (0, TCSAFLUSH, &temp);
+ }
+
+ r = getline (password, &n, stdin);
+ err = errno;
+
+ /* Restore echo. */
+ if (tty)
+ tcsetattr (0, TCSAFLUSH, &orig);
+
+ /* Complete the printf above. */
+ printf ("\n");
+
+ if (r == -1) {
+ errno = err;
+ nbdkit_error ("could not read password from stdin: %m");
+ return -1;
+ }
+ if (*password && r > 0 && (*password)[r-1] == '\n')
+ (*password)[r-1] = '\0';
+ }
+
+ /* Read password from a file. */
+ else if (value[0] == '+') {
+ fp = fopen (&value[1], "r");
+ if (fp == NULL) {
+ nbdkit_error ("open %s: %m", &value[1]);
+ return -1;
+ }
+ r = getline (password, &n, fp);
+ err = errno;
+ fclose (fp);
+ if (r == -1) {
+ errno = err;
+ nbdkit_error ("could not read password from file %s: %m", &value[1]);
+ return -1;
+ }
+ if (*password && r > 0 && (*password)[r-1] == '\n')
+ (*password)[r-1] = '\0';
+ }
+
+ /* Parameter is the password. */
+ else {
+ *password = strdup (value);
+ if (*password == NULL) {
+ nbdkit_error ("strdup: %m");
+ return -1;
+ }
+ }
+
+ return 0;
+}
+
+char *
+nbdkit_realpath (const char *path)
+{
+ char *ret;
+
+ if (path == NULL || *path == '\0') {
+ nbdkit_error ("cannot resolve a null or empty path");
+ return NULL;
+ }
+
+ ret = realpath (path, NULL);
+ if (ret == NULL) {
+ nbdkit_error ("realpath: %s: %m", path);
+ return NULL;
+ }
+
+ return ret;
+}
--- /dev/null
+#! /bin/sh
+# test-driver - basic testsuite driver script.
+
+scriptversion=2018-03-07.03; # UTC
+
+# Copyright (C) 2011-2018 Free Software Foundation, Inc.
+#
+# This program is free software; you can redistribute it and/or modify
+# it under the terms of the GNU General Public License as published by
+# the Free Software Foundation; either version 2, or (at your option)
+# any later version.
+#
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY; without even the implied warranty of
+# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
+# GNU General Public License for more details.
+#
+# You should have received a copy of the GNU General Public License
+# along with this program. If not, see <https://www.gnu.org/licenses/>.
+
+# As a special exception to the GNU General Public License, if you
+# distribute this file as part of a program that contains a
+# configuration script generated by Autoconf, you may include it under
+# the same distribution terms that you use for the rest of that program.
+
+# This file is maintained in Automake, please report
+# bugs to <bug-automake@gnu.org> or send patches to
+# <automake-patches@gnu.org>.
+
+# Make unconditional expansion of undefined variables an error. This
+# helps a lot in preventing typo-related bugs.
+set -u
+
+usage_error ()
+{
+ echo "$0: $*" >&2
+ print_usage >&2
+ exit 2
+}
+
+print_usage ()
+{
+ cat <<END
+Usage:
+ test-driver --test-name=NAME --log-file=PATH --trs-file=PATH
+ [--expect-failure={yes|no}] [--color-tests={yes|no}]
+ [--enable-hard-errors={yes|no}] [--]
+ TEST-SCRIPT [TEST-SCRIPT-ARGUMENTS]
+The '--test-name', '--log-file' and '--trs-file' options are mandatory.
+END
+}
+
+test_name= # Used for reporting.
+log_file= # Where to save the output of the test script.
+trs_file= # Where to save the metadata of the test run.
+expect_failure=no
+color_tests=no
+enable_hard_errors=yes
+while test $# -gt 0; do
+ case $1 in
+ --help) print_usage; exit $?;;
+ --version) echo "test-driver $scriptversion"; exit $?;;
+ --test-name) test_name=$2; shift;;
+ --log-file) log_file=$2; shift;;
+ --trs-file) trs_file=$2; shift;;
+ --color-tests) color_tests=$2; shift;;
+ --expect-failure) expect_failure=$2; shift;;
+ --enable-hard-errors) enable_hard_errors=$2; shift;;
+ --) shift; break;;
+ -*) usage_error "invalid option: '$1'";;
+ *) break;;
+ esac
+ shift
+done
+
+missing_opts=
+test x"$test_name" = x && missing_opts="$missing_opts --test-name"
+test x"$log_file" = x && missing_opts="$missing_opts --log-file"
+test x"$trs_file" = x && missing_opts="$missing_opts --trs-file"
+if test x"$missing_opts" != x; then
+ usage_error "the following mandatory options are missing:$missing_opts"
+fi
+
+if test $# -eq 0; then
+ usage_error "missing argument"
+fi
+
+if test $color_tests = yes; then
+ # Keep this in sync with 'lib/am/check.am:$(am__tty_colors)'.
+ red='\e[0;31m' # Red.
+ grn='\e[0;32m' # Green.
+ lgn='\e[1;32m' # Light green.
+ blu='\e[1;34m' # Blue.
+ mgn='\e[0;35m' # Magenta.
+ std='\e[m' # No color.
+else
+ red= grn= lgn= blu= mgn= std=
+fi
+
+do_exit='rm -f $log_file $trs_file; (exit $st); exit $st'
+trap "st=129; $do_exit" 1
+trap "st=130; $do_exit" 2
+trap "st=141; $do_exit" 13
+trap "st=143; $do_exit" 15
+
+# Test script is run here.
+"$@" >$log_file 2>&1
+estatus=$?
+
+if test $enable_hard_errors = no && test $estatus -eq 99; then
+ tweaked_estatus=1
+else
+ tweaked_estatus=$estatus
+fi
+
+case $tweaked_estatus:$expect_failure in
+ 0:yes) col=$red res=XPASS recheck=yes gcopy=yes;;
+ 0:*) col=$grn res=PASS recheck=no gcopy=no;;
+ 77:*) col=$blu res=SKIP recheck=no gcopy=yes;;
+ 99:*) col=$mgn res=ERROR recheck=yes gcopy=yes;;
+ *:yes) col=$lgn res=XFAIL recheck=no gcopy=yes;;
+ *:*) col=$red res=FAIL recheck=yes gcopy=yes;;
+esac
+
+# Report the test outcome and exit status in the logs, so that one can
+# know whether the test passed or failed simply by looking at the '.log'
+# file, without the need of also peaking into the corresponding '.trs'
+# file (automake bug#11814).
+echo "$res $test_name (exit status: $estatus)" >>$log_file
+
+# Report outcome to console.
+echo "${col}${res}${std}: $test_name"
+
+# Register the test result, and other relevant metadata.
+echo ":test-result: $res" > $trs_file
+echo ":global-test-result: $res" >> $trs_file
+echo ":recheck: $recheck" >> $trs_file
+echo ":copy-in-global-log: $gcopy" >> $trs_file
+
+# Local Variables:
+# mode: shell-script
+# sh-indentation: 2
+# eval: (add-hook 'before-save-hook 'time-stamp)
+# time-stamp-start: "scriptversion="
+# time-stamp-format: "%:y-%02m-%02d.%02H"
+# time-stamp-time-zone: "UTC0"
+# time-stamp-end: "; # UTC"
+# End:
--- /dev/null
+# nbdkit
+# Copyright (C) 2013-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+EXTRA_DIST = \
+ generate-file-data.sh \
+ generate-offset-data.sh \
+ make-pki.sh \
+ make-psk.sh \
+ python-exception.py \
+ README.tests \
+ shebang.pl \
+ shebang.py \
+ shebang.rb \
+ ssh/sshd_config.in \
+ test-ansi-c.sh \
+ test-blocksize.sh \
+ test-cache.sh \
+ test-cache-max-size.sh \
+ test-cache-on-read.sh \
+ test-captive.sh \
+ test-cow.sh \
+ test-cxx.sh \
+ test-data-7E.sh \
+ test-data-base64.sh \
+ test-data-extents.sh \
+ test-data-file.sh \
+ test-data-raw.sh \
+ test-debug-flags.sh \
+ test-dump-config.sh \
+ test-dump-plugin.sh \
+ test-dump-plugin-example4.sh \
+ test-eflags.sh \
+ test-error0.sh \
+ test-error10.sh \
+ test-error100.sh \
+ test-file-extents.sh \
+ test-floppy.sh \
+ test-foreground.sh \
+ test-fua.sh \
+ test-full.sh \
+ test-help.sh \
+ test-help-plugin.sh \
+ test-ip.sh \
+ test-iso.sh \
+ test-layers.sh \
+ test-linuxdisk.sh \
+ test-linuxdisk-copy-out.sh \
+ test-log.sh \
+ test.lua \
+ test-memory-largest.sh \
+ test-memory-largest-for-qemu.sh \
+ test-nozero.sh \
+ test-null-extents.sh \
+ test_ocaml_plugin.ml \
+ test-ocaml.c \
+ test-offset2.sh \
+ test-offset-extents.sh \
+ test-parallel-file.sh \
+ test-parallel-nbd.sh \
+ test-partition1.sh \
+ test-partition2.sh \
+ test-partitioning1.sh \
+ test-partitioning2.sh \
+ test-partitioning3.sh \
+ test-partitioning4.sh \
+ test-partitioning5.sh \
+ test-partitioning6.sh \
+ test-pattern.sh \
+ test-pattern-largest.sh \
+ test-pattern-largest-for-qemu.sh \
+ test-python-exception.sh \
+ test.pl \
+ test.py \
+ test-rate.sh \
+ test-rate-dynamic.sh \
+ test.rb \
+ test-readahead-copy.sh \
+ test-ssh.sh \
+ test.tcl \
+ test-shebang-perl.sh \
+ test-shebang-python.sh \
+ test-shebang-ruby.sh \
+ test-shell.sh \
+ test-sh-extents.sh \
+ test-single.sh \
+ test-single-from-file.sh \
+ test-start.sh \
+ test-random-sock.sh \
+ test-tls.sh \
+ test-tls-psk.sh \
+ test-truncate1.sh \
+ test-truncate2.sh \
+ test-truncate3.sh \
+ test-truncate-extents.sh \
+ test-vddk.sh \
+ test-vddk-real.sh \
+ test-version.sh \
+ test-version-filter.sh \
+ test-version-plugin.sh \
+ test-zero.sh
+
+# Use 'make check' to run the ordinary tests. To run all the tests
+# under valgrind, use the following rule:
+check-valgrind:
+ NBDKIT_VALGRIND=1 $(MAKE) check
+
+# To run only tests which require root, use:
+check-root:
+ $(MAKE) check TESTS="test-file-block"
+
+# Run a basic check against a real copy of VDDK. You must set
+# vddkdir to point to the library location, eg:
+#
+# make check-vddk vddkdir=vmware-vix-disklib-distrib
+check-vddk:
+ $(MAKE) check TESTS=test-vddk-real.sh
+
+#----------------------------------------------------------------------
+# Basic server command line and start-up tests.
+
+check_PROGRAMS =
+check_DATA =
+check_SCRIPTS =
+check_LTLIBRARIES =
+noinst_LTLIBRARIES =
+
+# Ensure we're testing the local copy by running everything through
+# the nbdkit helper script in the top build directory.
+TESTS_ENVIRONMENT = PATH=$(abs_top_builddir):$(PATH) SRCDIR=$(srcdir)
+
+TESTS = \
+ test-help.sh \
+ test-version.sh \
+ test-dump-config.sh
+
+if HAVE_PLUGINS
+
+TESTS += \
+ test-help-plugin.sh \
+ test-version-plugin.sh \
+ test-version-filter.sh \
+ test-dump-plugin.sh \
+ test-start.sh \
+ test-single.sh \
+ test-single-from-file.sh \
+ test-captive.sh \
+ test-random-sock.sh \
+ test-tls.sh \
+ test-tls-psk.sh \
+ test-ip.sh \
+ test-socket-activation \
+ test-foreground.sh \
+ test-debug-flags.sh
+
+check_PROGRAMS += \
+ test-socket-activation
+
+test_socket_activation_SOURCES = test-socket-activation.c
+test_socket_activation_CFLAGS = $(WARNINGS_CFLAGS)
+
+endif HAVE_PLUGINS
+
+# Test the header files can be included on their own.
+check_PROGRAMS += \
+ test-just-plugin-header \
+ test-just-filter-header
+TESTS += \
+ test-just-plugin-header \
+ test-just-filter-header
+
+test_just_plugin_header_SOURCES = \
+ test-just-plugin-header.c
+test_just_plugin_header_CPPFLAGS = \
+ -I$(top_srcdir)/include
+test_just_plugin_header_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+
+test_just_filter_header_SOURCES = \
+ test-just-filter-header.c
+test_just_filter_header_CPPFLAGS = \
+ -I$(top_srcdir)/include
+test_just_filter_header_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+
+if CAN_TEST_ANSI_C
+# This builds a plugin using an ANSI (ISO C90) compiler to ensure that
+# the header file is compatible. The plugin does nothing very
+# interesting, it's mainly a compile test.
+TESTS += \
+ test-ansi-c.sh
+# check_LTLIBRARIES won't build a shared library (see automake manual).
+# So we have to do this and add a dependency.
+noinst_LTLIBRARIES += test-ansi-c-plugin.la
+test-ansi-c.sh: test-ansi-c-plugin.la
+
+test_ansi_c_plugin_la_SOURCES = \
+ test-ansi-c-plugin.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+test_ansi_c_plugin_la_CPPFLAGS = \
+ -std=c90 -pedantic \
+ -I$(top_srcdir)/include
+test_ansi_c_plugin_la_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+# For use of the -rpath option, see:
+# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html
+test_ansi_c_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared -rpath /nowhere
+endif CAN_TEST_ANSI_C
+
+if HAVE_CXX
+# This builds a plugin and a filter using the C++ compiler. They
+# don't do anything interesting when run.
+TESTS += \
+ test-cxx.sh
+# check_LTLIBRARIES won't build a shared library (see automake manual).
+# So we have to do this and add a dependency.
+noinst_LTLIBRARIES += test-cxx-plugin.la test-cxx-filter.la
+test-cxx.sh: test-cxx-plugin.la test-cxx-filter.la
+
+test_cxx_plugin_la_SOURCES = \
+ test-cxx-plugin.cpp \
+ $(top_srcdir)/include/nbdkit-plugin.h
+test_cxx_plugin_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+test_cxx_plugin_la_CXXFLAGS = \
+ $(WARNINGS_CFLAGS)
+# For use of the -rpath option, see:
+# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html
+test_cxx_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared -rpath /nowhere
+
+test_cxx_filter_la_SOURCES = \
+ test-cxx-filter.cpp \
+ $(top_srcdir)/include/nbdkit-filter.h
+test_cxx_filter_la_CPPFLAGS = \
+ -I$(top_srcdir)/include
+test_cxx_filter_la_CXXFLAGS = \
+ $(WARNINGS_CFLAGS)
+# For use of the -rpath option, see:
+# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html
+test_cxx_filter_la_LDFLAGS = \
+ -module -avoid-version -shared -rpath /nowhere
+endif HAVE_CXX
+
+# Exit with parent test.
+check_PROGRAMS += test-exit-with-parent
+TESTS += test-exit-with-parent
+
+test_exit_with_parent_SOURCES = \
+ test-exit-with-parent.c test.h
+test_exit_with_parent_CPPFLAGS = \
+ -I$(top_srcdir)/common/include
+test_exit_with_parent_CFLAGS = \
+ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+
+# PKI files for the TLS tests.
+check_DATA += pki/.stamp
+pki/.stamp: $(srcdir)/make-pki.sh
+ SRCDIR=$(srcdir) $(srcdir)/make-pki.sh
+
+# PSK keys for the TLS-PSK tests.
+check_DATA += keys.psk
+keys.psk: $(srcdir)/make-psk.sh
+ SRCDIR=$(srcdir) $(srcdir)/make-psk.sh
+
+# Keys are expensive to recreate so only delete them when we do
+# ‘make distclean’.
+DISTCLEANFILES = keys.psk
+distclean-local: distclean-local-tls
+distclean-local-tls:
+ rm -rf pki
+
+#----------------------------------------------------------------------
+# Tests of C plugins or tests which require plugins.
+
+if HAVE_PLUGINS
+
+# Common data shared by multiple tests
+check_DATA += file-data
+CLEANFILES += file-data
+file-data: generate-file-data.sh
+ $(srcdir)/generate-file-data.sh $@
+
+# While most tests need libguestfs, testing parallel I/O is easier when
+# using qemu-io to kick off asynchronous requests.
+TESTS += \
+ test-parallel-file.sh \
+ test-parallel-nbd.sh
+
+# Most in-depth tests need libguestfs, since that is a convenient way to
+# drive qemu.
+LIBGUESTFS_TESTS =
+EXTRA_PROGRAMS =
+if HAVE_LIBGUESTFS
+check_PROGRAMS += $(LIBGUESTFS_TESTS)
+TESTS += $(LIBGUESTFS_TESTS)
+
+# Use the 'direct' backend, and ensure maximum libguestfs debugging is
+# written to the *.log files in case there is a problem.
+TESTS_ENVIRONMENT += \
+ LIBGUESTFS_ATTACH_METHOD=appliance \
+ LIBGUESTFS_DEBUG=1 \
+ LIBGUESTFS_TRACE=1 \
+ LD_LIBRARY_PATH=../plugins/ocaml/.libs:$(LD_LIBRARY_PATH) \
+ LIBRARY_PATH=../plugins/ocaml/.libs:$(LIBRARY_PATH)
+
+# Common test library.
+check_LTLIBRARIES += libtest.la
+libtest_la_SOURCES = test.c test.h
+libtest_la_CFLAGS = $(WARNINGS_CFLAGS)
+
+# Basic connection test.
+LIBGUESTFS_TESTS += test-connect
+
+test_connect_SOURCES = test-connect.c test.h
+test_connect_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_connect_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+# newstyle protocol test.
+LIBGUESTFS_TESTS += test-newstyle
+
+test_newstyle_SOURCES = test-newstyle.c test.h
+test_newstyle_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_newstyle_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+# oldstyle protocol test.
+LIBGUESTFS_TESTS += test-oldstyle
+
+test_oldstyle_SOURCES = test-oldstyle.c test.h
+test_oldstyle_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_oldstyle_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+endif HAVE_LIBGUESTFS
+
+# Test export flags.
+TESTS += test-eflags.sh
+
+# common disk image shared with several tests
+if HAVE_GUESTFISH
+check_DATA += disk
+CLEANFILES += disk
+
+disk:
+ rm -f $@ $@-t
+ guestfish -N $@-t=fs:ext4:100M -m /dev/sda1 \
+ write /hello.txt "hello,world"
+ mv $@-t $@
+
+endif HAVE_GUESTFISH
+
+# curl plugin test.
+
+if HAVE_CURL
+if HAVE_GUESTFISH
+
+# curl plugin test.
+LIBGUESTFS_TESTS += test-curl
+
+test_curl_SOURCES = \
+ test-curl.c \
+ web-server.c \
+ web-server.h \
+ test.h
+test_curl_CFLAGS = \
+ $(WARNINGS_CFLAGS) \
+ $(LIBGUESTFS_CFLAGS) \
+ $(PTHREAD_CFLAGS)
+test_curl_LDFLAGS = \
+ $(PTHREAD_LIBS)
+test_curl_LDADD = \
+ libtest.la \
+ $(LIBGUESTFS_LIBS)
+
+endif HAVE_GUESTFISH
+endif HAVE_CURL
+
+# data plugin test.
+LIBGUESTFS_TESTS += test-data
+TESTS += \
+ test-data-7E.sh \
+ test-data-base64.sh \
+ test-data-extents.sh \
+ test-data-file.sh \
+ test-data-raw.sh
+
+test_data_SOURCES = test-data.c test.h
+test_data_CPPFLAGS = -I$(top_srcdir)/common/include
+test_data_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_data_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+# ext2 plugin test.
+if HAVE_EXT2
+if HAVE_GUESTFISH
+
+LIBGUESTFS_TESTS += test-ext2
+check_DATA += ext2.img
+CLEANFILES += ext2.img
+
+ext2.img: disk
+ rm -f $@ $@-t
+ guestfish \
+ sparse $@-t 2G : \
+ run : \
+ mkfs ext4 /dev/sda : \
+ mount /dev/sda / : \
+ mkdir /disks : \
+ upload $< /disks/disk.img
+ mv $@-t $@
+
+test_ext2_SOURCES = test-ext2.c test.h
+test_ext2_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_ext2_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+endif HAVE_GUESTFISH
+endif HAVE_EXT2
+
+# file plugin test.
+LIBGUESTFS_TESTS += test-file test-file-block
+
+test_file_SOURCES = test-file.c test.h
+test_file_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_file_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+test_file_block_SOURCES = test-file-block.c test.h
+test_file_block_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_file_block_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+if HAVE_GUESTFISH
+TESTS += test-file-extents.sh
+endif HAVE_GUESTFISH
+
+# floppy plugin test.
+if HAVE_GUESTFISH
+TESTS += test-floppy.sh
+endif HAVE_GUESTFISH
+
+# full plugin test.
+TESTS += test-full.sh
+
+# gzip plugin test.
+if HAVE_ZLIB
+if HAVE_GUESTFISH
+
+LIBGUESTFS_TESTS += test-gzip
+check_DATA += disk.gz
+CLEANFILES += disk.gz
+
+test_gzip_SOURCES = test-gzip.c test.h
+test_gzip_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_gzip_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+disk.gz: disk
+ rm -f $@
+ gzip -9 -c disk > $@
+
+endif HAVE_GUESTFISH
+endif HAVE_ZLIB
+
+# iso plugin test.
+if HAVE_ISO
+if HAVE_GUESTFISH
+
+TESTS += test-iso.sh
+
+endif HAVE_GUESTFISH
+endif HAVE_ISO
+
+# linuxdisk plugin test.
+if HAVE_GUESTFISH
+TESTS += \
+ test-linuxdisk.sh \
+ test-linuxdisk-copy-out.sh
+endif HAVE_GUESTFISH
+
+# memory plugin test.
+LIBGUESTFS_TESTS += test-memory
+TESTS += test-memory-largest.sh test-memory-largest-for-qemu.sh
+
+test_memory_SOURCES = test-memory.c test.h
+test_memory_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_memory_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+# partitioning plugin test.
+TESTS += \
+ test-partitioning1.sh \
+ test-partitioning4.sh \
+ test-partitioning6.sh
+if HAVE_GUESTFISH
+TESTS += \
+ test-partitioning2.sh \
+ test-partitioning3.sh \
+ test-partitioning5.sh
+endif HAVE_GUESTFISH
+
+# pattern plugin test.
+TESTS += \
+ test-pattern.sh \
+ test-pattern-largest.sh \
+ test-pattern-largest-for-qemu.sh
+
+# nbd plugin test.
+LIBGUESTFS_TESTS += test-nbd
+
+test_nbd_SOURCES = test-nbd.c test.h
+test_nbd_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_nbd_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+# null plugin test.
+LIBGUESTFS_TESTS += test-null
+TESTS += test-null-extents.sh
+
+test_null_SOURCES = test-null.c test.h
+test_null_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_null_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+# random plugin test.
+LIBGUESTFS_TESTS += test-random
+
+test_random_SOURCES = test-random.c test.h
+test_random_CPPFLAGS = -I $(top_srcdir)/common/include
+test_random_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_random_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+# split files plugin test.
+check_DATA += split1 split2 split3
+CLEANFILES += split1 split2 split3
+split1: file-data
+ rm -f $@ $@-t
+ dd if=$< of=$@-t bs=1 count=100
+ mv $@-t $@
+split2: file-data
+ rm -f $@ $@-t
+ dd if=$< of=$@-t bs=1 count=100 skip=100
+ mv $@-t $@
+split3: file-data
+ rm -f $@ $@-t
+ dd if=$< of=$@-t bs=1 skip=200
+ mv $@-t $@
+LIBGUESTFS_TESTS += test-split
+
+test_split_SOURCES = test-split.c test.h
+test_split_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_split_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+# ssh plugin test.
+if HAVE_SSH
+# Uses ‘disk’ so we have to make it conditional on guestfish.
+if HAVE_GUESTFISH
+TESTS += test-ssh.sh
+endif HAVE_GUESTFISH
+check_DATA += \
+ ssh/sshd_config \
+ ssh/ssh_host_rsa_key ssh/ssh_host_rsa_key.pub \
+ ssh/authorized_keys
+SSH_RANDOM_PORT := $(shell bash -c 'echo $$(( 10000 + $$RANDOM ))')
+CLEANFILES += \
+ ssh/*~ \
+ ssh/sshd_config \
+ ssh/authorized_keys
+DISTCLEANFILES += \
+ ssh/ssh_host_rsa_key ssh/ssh_host_rsa_key.pub \
+ ssh/id_rsa ssh/id_rsa.pub \
+ stamp-ssh-host-key stamp-ssh-user-key
+
+ssh/sshd_config: ssh/sshd_config.in Makefile
+ rm -f $@ $@-t
+ $(SED) \
+ -e 's,__abs_builddir__,$(abs_builddir),g' \
+ -e 's,__RANDOM_PORT__,$(SSH_RANDOM_PORT),g' \
+ < $< > $@-t
+ mv $@-t $@
+
+ssh/ssh_host_rsa_key ssh/ssh_host_rsa_key.pub: stamp-ssh-host-key
+stamp-ssh-host-key:
+ rm -f $@
+ rm -f ssh/ssh_host_rsa_key
+ rm -f ssh/ssh_host_rsa_key.pub
+ ssh-keygen -t rsa -f ssh/ssh_host_rsa_key -N ''
+ touch $@
+
+ssh/authorized_keys: ssh/id_rsa.pub
+ rm -f $@ $@-t
+ cp $< $@-t
+ mv $@-t $@
+
+ssh/id_rsa ssh/id_rsa.pub: stamp-ssh-user-key
+stamp-ssh-user-key:
+ rm -f $@
+ rm -f ssh/id_rsa
+ rm -f ssh/id_rsa.pub
+ ssh-keygen -t rsa -f ssh/id_rsa -N ''
+ touch $@
+endif HAVE_SSH
+
+# streaming plugin test.
+# Doesn't work:
+#LIBGUESTFS_TESTS += test-streaming
+EXTRA_PROGRAMS += test-streaming
+
+test_streaming_SOURCES = test-streaming.c test.h
+test_streaming_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_streaming_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+# VDDK plugin test.
+# This only tests that the plugin can be loaded against a
+# dummy VDDK library, it is not a detailed test.
+
+# check_LTLIBRARIES won't build a shared library (see automake manual).
+# So we have to do this and add a dependency.
+noinst_LTLIBRARIES += libvixDiskLib.la
+TESTS += \
+ test-vddk.sh \
+ test-vddk-real.sh
+
+libvixDiskLib_la_SOURCES = \
+ dummy-vddk.c
+libvixDiskLib_la_CPPFLAGS = \
+ -I$(top_srcdir)/plugins/vddk
+libvixDiskLib_la_CXXFLAGS = \
+ $(WARNINGS_CFLAGS)
+# For use of the -rpath option, see:
+# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html
+libvixDiskLib_la_LDFLAGS = \
+ -shared -version-number 6:0:0 -rpath /nowhere
+
+# zero plugin test.
+TESTS += test-zero.sh
+
+#----------------------------------------------------------------------
+# Tests of language plugins.
+
+# OCaml plugin test.
+if HAVE_OCAML
+
+LIBGUESTFS_TESTS += test-ocaml
+
+# This is somewhat different from the other tests because we have
+# to build an actual plugin here.
+test_ocaml_SOURCES = test-ocaml.c test.h
+test_ocaml_CFLAGS = \
+ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_ocaml_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+check_SCRIPTS += test-ocaml-plugin.so
+test-ocaml-plugin.so: test_ocaml_plugin.cmx ../plugins/ocaml/libnbdkitocaml.la ../plugins/ocaml/NBDKit.cmi ../plugins/ocaml/NBDKit.cmx
+ $(OCAMLOPT) $(OCAMLOPTFLAGS) -I ../plugins/ocaml \
+ -output-obj -runtime-variant _pic -o $@ \
+ NBDKit.cmx $< \
+ -cclib -L../plugins/ocaml/.libs -cclib -lnbdkitocaml
+test_ocaml_plugin.cmx: test_ocaml_plugin.ml ../plugins/ocaml/NBDKit.cmi
+ $(OCAMLOPT) $(OCAMLOPTFLAGS) -I ../plugins/ocaml -c $< -o $@
+
+endif HAVE_OCAML
+
+# perl plugin test.
+if HAVE_PERL
+
+TESTS += \
+ test-dump-plugin-example4.sh \
+ test-shebang-perl.sh
+LIBGUESTFS_TESTS += test-perl
+
+test_perl_SOURCES = test-lang-plugins.c test.h
+test_perl_CFLAGS = \
+ -DLANG='"perl"' -DSCRIPT='"$(srcdir)/test.pl"' \
+ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_perl_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+endif HAVE_PERL
+
+# python plugin test.
+if HAVE_PYTHON
+
+TESTS += \
+ test-python-exception.sh \
+ test-shebang-python.sh
+LIBGUESTFS_TESTS += test-python
+
+test_python_SOURCES = test-lang-plugins.c test.h
+test_python_CFLAGS = \
+ -DLANG='"python"' -DSCRIPT='"$(srcdir)/test.py"' \
+ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_python_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+endif HAVE_PYTHON
+
+# Ruby plugin test.
+if HAVE_RUBY
+
+# Ruby tests are disabled. See "WARNING" section in
+# plugins/ruby/nbdkit-ruby-plugin.pod
+
+#LIBGUESTFS_TESTS += \
+# test-ruby
+#TESTS += test-shebang-ruby.sh
+EXTRA_PROGRAMS += test-ruby
+
+test_ruby_SOURCES = test-lang-plugins.c test.h
+test_ruby_CFLAGS = \
+ -DLANG='"ruby"' -DSCRIPT='"$(srcdir)/test.rb"' \
+ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_ruby_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+endif HAVE_RUBY
+
+# Shell (sh) plugin test.
+LIBGUESTFS_TESTS += test-shell
+check_DATA += test-shell.img
+CLEANFILES += test-shell.img
+
+test_shell_SOURCES = test-lang-plugins.c test.h
+test_shell_CFLAGS = \
+ -DLANG='"sh"' -DSCRIPT='"$(srcdir)/test-shell.sh"' \
+ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_shell_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+test-shell.img:
+ truncate -s 1048576 $@
+
+TESTS += test-sh-extents.sh
+
+# Tcl plugin test.
+if HAVE_TCL
+
+LIBGUESTFS_TESTS += test-tcl
+
+test_tcl_SOURCES = test-lang-plugins.c test.h
+test_tcl_CFLAGS = \
+ -DLANG='"tcl"' -DSCRIPT='"$(srcdir)/test.tcl"' \
+ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_tcl_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+endif HAVE_TCL
+
+# Lua plugin test.
+if HAVE_LUA
+
+LIBGUESTFS_TESTS += test-lua
+
+test_lua_SOURCES = test-lang-plugins.c test.h
+test_lua_CFLAGS = \
+ -DLANG='"lua"' -DSCRIPT='"$(srcdir)/test.lua"' \
+ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_lua_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+endif HAVE_LUA
+
+#----------------------------------------------------------------------
+# Tests of filters.
+
+# Generic test of filter layers.
+check_PROGRAMS += test-layers
+TESTS += test-layers.sh test-layers
+
+test_layers_SOURCES = \
+ test-layers.c
+test_layers_CPPFLAGS = \
+ -I$(top_srcdir)/common/include \
+ -I$(top_srcdir)/common/protocol \
+ -I$(top_srcdir)/server
+test_layers_CFLAGS = \
+ $(WARNINGS_CFLAGS) \
+ $(PTHREAD_CFLAGS)
+test_layers_LDFLAGS = \
+ $(PTHREAD_LIBS)
+test_layers_DEPENDENCIES = \
+ test-layers-plugin.la \
+ test-layers-filter1.la \
+ test-layers-filter2.la \
+ test-layers-filter3.la
+
+# check_LTLIBRARIES won't build a shared library (see automake manual).
+# So we have to do this and add a dependency.
+noinst_LTLIBRARIES += \
+ test-layers-plugin.la \
+ test-layers-filter1.la \
+ test-layers-filter2.la \
+ test-layers-filter3.la
+
+test_layers_plugin_la_SOURCES = \
+ test-layers-plugin.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+test_layers_plugin_la_CPPFLAGS = -I$(top_srcdir)/include
+test_layers_plugin_la_CFLAGS = $(WARNINGS_CFLAGS)
+# For use of the -rpath option, see:
+# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html
+test_layers_plugin_la_LDFLAGS = \
+ -module -avoid-version -shared -rpath /nowhere
+
+test_layers_filter1_la_SOURCES = \
+ test-layers-filter.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+test_layers_filter1_la_CPPFLAGS = -I$(top_srcdir)/include
+test_layers_filter1_la_CFLAGS = $(WARNINGS_CFLAGS) -Dlayer='"filter1"'
+# For use of the -rpath option, see:
+# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html
+test_layers_filter1_la_LDFLAGS = \
+ -module -avoid-version -shared -rpath /nowhere
+
+test_layers_filter2_la_SOURCES = \
+ test-layers-filter.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+test_layers_filter2_la_CPPFLAGS = -I$(top_srcdir)/include
+test_layers_filter2_la_CFLAGS = $(WARNINGS_CFLAGS) -Dlayer='"filter2"'
+# For use of the -rpath option, see:
+# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html
+test_layers_filter2_la_LDFLAGS = \
+ -module -avoid-version -shared -rpath /nowhere
+
+test_layers_filter3_la_SOURCES = \
+ test-layers-filter.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+test_layers_filter3_la_CPPFLAGS = -I$(top_srcdir)/include
+test_layers_filter3_la_CFLAGS = $(WARNINGS_CFLAGS) -Dlayer='"filter3"'
+# For use of the -rpath option, see:
+# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html
+test_layers_filter3_la_LDFLAGS = \
+ -module -avoid-version -shared -rpath /nowhere
+
+# blocksize filter test.
+TESTS += test-blocksize.sh
+
+# cache filter test.
+if HAVE_GUESTFISH
+TESTS += \
+ test-cache.sh \
+ test-cache-on-read.sh
+endif HAVE_GUESTFISH
+TESTS += test-cache-max-size.sh
+
+# cow filter test.
+if HAVE_GUESTFISH
+TESTS += test-cow.sh
+endif HAVE_GUESTFISH
+
+# delay filter test.
+LIBGUESTFS_TESTS += test-delay
+
+test_delay_SOURCES = test-delay.c test.h
+test_delay_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_delay_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+# error filter test.
+LIBGUESTFS_TESTS += test-error
+
+test_error_SOURCES = test-error.c test.h
+test_error_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_error_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+TESTS += \
+ test-error0.sh \
+ test-error10.sh \
+ test-error100.sh
+
+# fua filter test.
+TESTS += test-fua.sh
+
+# log filter test.
+TESTS += test-log.sh
+
+# nozero filter test.
+TESTS += test-nozero.sh
+
+# offset filter test.
+check_DATA += offset-data
+CLEANFILES += offset-data
+LIBGUESTFS_TESTS += test-offset
+
+offset-data: generate-offset-data.sh
+ $(srcdir)/generate-offset-data.sh $@
+
+test_offset_SOURCES = test-offset.c test.h
+test_offset_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_offset_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+TESTS += \
+ test-offset2.sh \
+ test-offset-extents.sh
+
+# partition filter test.
+TESTS += test-partition1.sh
+if HAVE_GUESTFISH
+TESTS += test-partition2.sh
+endif HAVE_GUESTFISH
+
+# rate filter test.
+TESTS += \
+ test-rate.sh \
+ test-rate-dynamic.sh
+
+# readahead filter test.
+LIBGUESTFS_TESTS += test-readahead
+TESTS += test-readahead-copy.sh
+
+test_readahead_SOURCES = test-readahead.c test.h
+test_readahead_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_readahead_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+# truncate filter tests.
+TESTS += \
+ test-truncate1.sh \
+ test-truncate2.sh \
+ test-truncate3.sh \
+ test-truncate-extents.sh
+
+# xz filter test.
+if HAVE_LIBLZMA
+if HAVE_GUESTFISH
+
+LIBGUESTFS_TESTS += test-xz
+check_DATA += disk.xz
+CLEANFILES += disk.xz
+
+test_xz_SOURCES = test-xz.c test.h
+test_xz_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+test_xz_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+
+disk.xz: disk
+ rm -f $@
+# We choose a very small block size here only for testing. Normally
+# you should choose a 16M block size.
+ xz --best --block-size=32768 -c disk > $@
+
+if HAVE_CURL
+
+# xz filter + curl.
+LIBGUESTFS_TESTS += test-xz-curl
+
+test_xz_curl_SOURCES = \
+ test-xz-curl.c \
+ web-server.c \
+ web-server.h \
+ test.h
+test_xz_curl_CFLAGS = \
+ $(WARNINGS_CFLAGS) \
+ $(LIBGUESTFS_CFLAGS) \
+ $(PTHREAD_CFLAGS)
+test_xz_curl_LDFLAGS = \
+ $(PTHREAD_LIBS)
+test_xz_curl_LDADD = \
+ libtest.la \
+ $(LIBGUESTFS_LIBS)
+
+endif HAVE_CURL
+
+endif HAVE_GUESTFISH
+endif HAVE_LIBLZMA
+
+endif HAVE_PLUGINS
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2013-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
+ elif test -n '$(MAKE_HOST)'; then \
+ true; \
+ elif test -n '$(MAKE_VERSION)' && test -n '$(CURDIR)'; then \
+ true; \
+ else \
+ false; \
+ fi; \
+}
+am__make_running_with_option = \
+ case $${target_option-} in \
+ ?) ;; \
+ *) echo "am__make_running_with_option: internal error: invalid" \
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+@HAVE_PLUGINS_TRUE@ test-dump-plugin.sh \
+@HAVE_PLUGINS_TRUE@ test-start.sh \
+@HAVE_PLUGINS_TRUE@ test-single.sh \
+@HAVE_PLUGINS_TRUE@ test-single-from-file.sh \
+@HAVE_PLUGINS_TRUE@ test-captive.sh \
+@HAVE_PLUGINS_TRUE@ test-random-sock.sh \
+@HAVE_PLUGINS_TRUE@ test-tls.sh \
+@HAVE_PLUGINS_TRUE@ test-tls-psk.sh \
+@HAVE_PLUGINS_TRUE@ test-ip.sh \
+@HAVE_PLUGINS_TRUE@ test-socket-activation \
+@HAVE_PLUGINS_TRUE@ test-foreground.sh \
+@HAVE_PLUGINS_TRUE@ test-debug-flags.sh
+
+@HAVE_PLUGINS_TRUE@am__append_2 = \
+@HAVE_PLUGINS_TRUE@ test-socket-activation
+
+
+# This builds a plugin using an ANSI (ISO C90) compiler to ensure that
+# the header file is compatible. The plugin does nothing very
+# interesting, it's mainly a compile test.
+@CAN_TEST_ANSI_C_TRUE@am__append_3 = \
+@CAN_TEST_ANSI_C_TRUE@ test-ansi-c.sh
+
+# check_LTLIBRARIES won't build a shared library (see automake manual).
+# So we have to do this and add a dependency.
+@CAN_TEST_ANSI_C_TRUE@am__append_4 = test-ansi-c-plugin.la
+
+# This builds a plugin and a filter using the C++ compiler. They
+# don't do anything interesting when run.
+@HAVE_CXX_TRUE@am__append_5 = \
+@HAVE_CXX_TRUE@ test-cxx.sh
+
+# check_LTLIBRARIES won't build a shared library (see automake manual).
+# So we have to do this and add a dependency.
+@HAVE_CXX_TRUE@am__append_6 = test-cxx-plugin.la test-cxx-filter.la
+
+#----------------------------------------------------------------------
+# Tests of C plugins or tests which require plugins.
+
+# Common data shared by multiple tests
+@HAVE_PLUGINS_TRUE@am__append_7 = file-data
+@HAVE_PLUGINS_TRUE@am__append_8 = file-data
+
+# While most tests need libguestfs, testing parallel I/O is easier when
+# using qemu-io to kick off asynchronous requests.
+@HAVE_PLUGINS_TRUE@am__append_9 = \
+@HAVE_PLUGINS_TRUE@ test-parallel-file.sh \
+@HAVE_PLUGINS_TRUE@ test-parallel-nbd.sh
+
+@HAVE_PLUGINS_TRUE@EXTRA_PROGRAMS = test-streaming$(EXEEXT) \
+@HAVE_PLUGINS_TRUE@ $(am__EXEEXT_1)
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am__append_10 = $(LIBGUESTFS_TESTS)
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am__append_11 = $(LIBGUESTFS_TESTS)
+
+# Use the 'direct' backend, and ensure maximum libguestfs debugging is
+# written to the *.log files in case there is a problem.
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am__append_12 = \
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ LIBGUESTFS_ATTACH_METHOD=appliance \
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ LIBGUESTFS_DEBUG=1 \
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ LIBGUESTFS_TRACE=1 \
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ LD_LIBRARY_PATH=../plugins/ocaml/.libs:$(LD_LIBRARY_PATH) \
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ LIBRARY_PATH=../plugins/ocaml/.libs:$(LIBRARY_PATH)
+
+
+# Common test library.
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am__append_13 = libtest.la
+
+# Basic connection test.
+
+# newstyle protocol test.
+
+# oldstyle protocol test.
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am__append_14 = test-connect \
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ test-newstyle \
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ test-oldstyle
+
+# Test export flags.
+@HAVE_PLUGINS_TRUE@am__append_15 = test-eflags.sh test-data-7E.sh \
+@HAVE_PLUGINS_TRUE@ test-data-base64.sh test-data-extents.sh \
+@HAVE_PLUGINS_TRUE@ test-data-file.sh test-data-raw.sh
+
+# common disk image shared with several tests
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_16 = disk
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_17 = disk
+
+# curl plugin test.
+
+# curl plugin test.
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_18 = test-curl
+
+# ext2 plugin test.
+@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_19 = test-ext2
+@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_20 = ext2.img
+@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_21 = ext2.img
+
+# floppy plugin test.
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_22 = \
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-file-extents.sh \
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-floppy.sh
+
+# full plugin test.
+@HAVE_PLUGINS_TRUE@am__append_23 = test-full.sh
+
+# gzip plugin test.
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_ZLIB_TRUE@am__append_24 = test-gzip
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_ZLIB_TRUE@am__append_25 = disk.gz
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_ZLIB_TRUE@am__append_26 = disk.gz
+
+# iso plugin test.
+@HAVE_GUESTFISH_TRUE@@HAVE_ISO_TRUE@@HAVE_PLUGINS_TRUE@am__append_27 = test-iso.sh
+
+# linuxdisk plugin test.
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_28 = \
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-linuxdisk.sh \
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-linuxdisk-copy-out.sh
+
+
+# partitioning plugin test.
+@HAVE_PLUGINS_TRUE@am__append_29 = test-memory-largest.sh \
+@HAVE_PLUGINS_TRUE@ test-memory-largest-for-qemu.sh \
+@HAVE_PLUGINS_TRUE@ test-partitioning1.sh test-partitioning4.sh \
+@HAVE_PLUGINS_TRUE@ test-partitioning6.sh
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_30 = \
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-partitioning2.sh \
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-partitioning3.sh \
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-partitioning5.sh
+
+
+# pattern plugin test.
+@HAVE_PLUGINS_TRUE@am__append_31 = test-pattern.sh \
+@HAVE_PLUGINS_TRUE@ test-pattern-largest.sh \
+@HAVE_PLUGINS_TRUE@ test-pattern-largest-for-qemu.sh \
+@HAVE_PLUGINS_TRUE@ test-null-extents.sh
+
+# split files plugin test.
+@HAVE_PLUGINS_TRUE@am__append_32 = split1 split2 split3
+@HAVE_PLUGINS_TRUE@am__append_33 = split1 split2 split3
+
+# ssh plugin test.
+# Uses ‘disk’ so we have to make it conditional on guestfish.
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@am__append_34 = test-ssh.sh
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@am__append_35 = \
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh/sshd_config \
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh/ssh_host_rsa_key ssh/ssh_host_rsa_key.pub \
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh/authorized_keys
+
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@am__append_36 = \
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh/*~ \
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh/sshd_config \
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh/authorized_keys
+
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@am__append_37 = \
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh/ssh_host_rsa_key ssh/ssh_host_rsa_key.pub \
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh/id_rsa ssh/id_rsa.pub \
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ stamp-ssh-host-key stamp-ssh-user-key
+
+
+# VDDK plugin test.
+# This only tests that the plugin can be loaded against a
+# dummy VDDK library, it is not a detailed test.
+
+# check_LTLIBRARIES won't build a shared library (see automake manual).
+# So we have to do this and add a dependency.
+
+# check_LTLIBRARIES won't build a shared library (see automake manual).
+# So we have to do this and add a dependency.
+@HAVE_PLUGINS_TRUE@am__append_38 = libvixDiskLib.la \
+@HAVE_PLUGINS_TRUE@ test-layers-plugin.la \
+@HAVE_PLUGINS_TRUE@ test-layers-filter1.la \
+@HAVE_PLUGINS_TRUE@ test-layers-filter2.la \
+@HAVE_PLUGINS_TRUE@ test-layers-filter3.la
+
+# zero plugin test.
+@HAVE_PLUGINS_TRUE@am__append_39 = test-vddk.sh test-vddk-real.sh \
+@HAVE_PLUGINS_TRUE@ test-zero.sh
+
+#----------------------------------------------------------------------
+# Tests of language plugins.
+
+# OCaml plugin test.
+@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@am__append_40 = test-ocaml
+@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@am__append_41 = test-ocaml-plugin.so
+
+# perl plugin test.
+@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@am__append_42 = \
+@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@ test-dump-plugin-example4.sh \
+@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@ test-shebang-perl.sh
+
+@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@am__append_43 = test-perl
+
+# python plugin test.
+@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@am__append_44 = \
+@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@ test-python-exception.sh \
+@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@ test-shebang-python.sh
+
+@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@am__append_45 = test-python
+
+# Ruby plugin test.
+
+# Ruby tests are disabled. See "WARNING" section in
+# plugins/ruby/nbdkit-ruby-plugin.pod
+
+#LIBGUESTFS_TESTS += \
+# test-ruby
+#TESTS += test-shebang-ruby.sh
+@HAVE_PLUGINS_TRUE@@HAVE_RUBY_TRUE@am__append_46 = test-ruby
+
+# offset filter test.
+@HAVE_PLUGINS_TRUE@am__append_47 = test-shell.img offset-data
+@HAVE_PLUGINS_TRUE@am__append_48 = test-shell.img offset-data
+
+# blocksize filter test.
+@HAVE_PLUGINS_TRUE@am__append_49 = test-sh-extents.sh test-layers.sh \
+@HAVE_PLUGINS_TRUE@ test-layers test-blocksize.sh
+
+# Tcl plugin test.
+@HAVE_PLUGINS_TRUE@@HAVE_TCL_TRUE@am__append_50 = test-tcl
+
+# Lua plugin test.
+@HAVE_LUA_TRUE@@HAVE_PLUGINS_TRUE@am__append_51 = test-lua
+
+#----------------------------------------------------------------------
+# Tests of filters.
+
+# Generic test of filter layers.
+@HAVE_PLUGINS_TRUE@am__append_52 = test-layers
+
+# cache filter test.
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_53 = \
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-cache.sh \
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-cache-on-read.sh
+
+@HAVE_PLUGINS_TRUE@am__append_54 = test-cache-max-size.sh
+
+# cow filter test.
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_55 = test-cow.sh
+
+# fua filter test.
+
+# log filter test.
+
+# nozero filter test.
+
+# partition filter test.
+@HAVE_PLUGINS_TRUE@am__append_56 = test-error0.sh test-error10.sh \
+@HAVE_PLUGINS_TRUE@ test-error100.sh test-fua.sh test-log.sh \
+@HAVE_PLUGINS_TRUE@ test-nozero.sh test-offset2.sh \
+@HAVE_PLUGINS_TRUE@ test-offset-extents.sh test-partition1.sh
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__append_57 = test-partition2.sh
+
+# rate filter test.
+
+# truncate filter tests.
+@HAVE_PLUGINS_TRUE@am__append_58 = test-rate.sh test-rate-dynamic.sh \
+@HAVE_PLUGINS_TRUE@ test-readahead-copy.sh test-truncate1.sh \
+@HAVE_PLUGINS_TRUE@ test-truncate2.sh test-truncate3.sh \
+@HAVE_PLUGINS_TRUE@ test-truncate-extents.sh
+
+# xz filter test.
+@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@am__append_59 = test-xz
+@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@am__append_60 = disk.xz
+@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@am__append_61 = disk.xz
+
+# xz filter + curl.
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@am__append_62 = test-xz-curl
+subdir = tests
+ACLOCAL_M4 = $(top_srcdir)/aclocal.m4
+am__aclocal_m4_deps = $(top_srcdir)/m4/ax_pthread.m4 \
+ $(top_srcdir)/m4/libtool.m4 $(top_srcdir)/m4/ltoptions.m4 \
+ $(top_srcdir)/m4/ltsugar.m4 $(top_srcdir)/m4/ltversion.m4 \
+ $(top_srcdir)/m4/lt~obsolete.m4 $(top_srcdir)/m4/ocaml.m4 \
+ $(top_srcdir)/configure.ac
+am__configure_deps = $(am__aclocal_m4_deps) $(CONFIGURE_DEPENDENCIES) \
+ $(ACLOCAL_M4)
+DIST_COMMON = $(srcdir)/Makefile.am $(am__DIST_COMMON)
+mkinstalldirs = $(install_sh) -d
+CONFIG_HEADER = $(top_builddir)/config.h
+CONFIG_CLEAN_FILES = functions.sh
+CONFIG_CLEAN_VPATH_FILES =
+@HAVE_PLUGINS_TRUE@@HAVE_RUBY_TRUE@am__EXEEXT_1 = test-ruby$(EXEEXT)
+@HAVE_PLUGINS_TRUE@am__EXEEXT_2 = test-socket-activation$(EXEEXT)
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_3 = test-connect$(EXEEXT) \
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ test-newstyle$(EXEEXT) \
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ test-oldstyle$(EXEEXT)
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_4 = test-curl$(EXEEXT)
+@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_5 = test-ext2$(EXEEXT)
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_ZLIB_TRUE@am__EXEEXT_6 = test-gzip$(EXEEXT)
+@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_7 = \
+@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@ test-ocaml$(EXEEXT)
+@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_8 = test-perl$(EXEEXT)
+@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@am__EXEEXT_9 = \
+@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@ test-python$(EXEEXT)
+@HAVE_PLUGINS_TRUE@@HAVE_TCL_TRUE@am__EXEEXT_10 = test-tcl$(EXEEXT)
+@HAVE_LUA_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_11 = test-lua$(EXEEXT)
+@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_12 = test-xz$(EXEEXT)
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_13 = test-xz-curl$(EXEEXT)
+@HAVE_PLUGINS_TRUE@am__EXEEXT_14 = $(am__EXEEXT_3) $(am__EXEEXT_4) \
+@HAVE_PLUGINS_TRUE@ test-data$(EXEEXT) $(am__EXEEXT_5) \
+@HAVE_PLUGINS_TRUE@ test-file$(EXEEXT) test-file-block$(EXEEXT) \
+@HAVE_PLUGINS_TRUE@ $(am__EXEEXT_6) test-memory$(EXEEXT) \
+@HAVE_PLUGINS_TRUE@ test-nbd$(EXEEXT) test-null$(EXEEXT) \
+@HAVE_PLUGINS_TRUE@ test-random$(EXEEXT) test-split$(EXEEXT) \
+@HAVE_PLUGINS_TRUE@ $(am__EXEEXT_7) $(am__EXEEXT_8) \
+@HAVE_PLUGINS_TRUE@ $(am__EXEEXT_9) test-shell$(EXEEXT) \
+@HAVE_PLUGINS_TRUE@ $(am__EXEEXT_10) $(am__EXEEXT_11) \
+@HAVE_PLUGINS_TRUE@ test-delay$(EXEEXT) test-error$(EXEEXT) \
+@HAVE_PLUGINS_TRUE@ test-offset$(EXEEXT) \
+@HAVE_PLUGINS_TRUE@ test-readahead$(EXEEXT) $(am__EXEEXT_12) \
+@HAVE_PLUGINS_TRUE@ $(am__EXEEXT_13)
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am__EXEEXT_15 = \
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ $(am__EXEEXT_14)
+@HAVE_PLUGINS_TRUE@am__EXEEXT_16 = test-layers$(EXEEXT)
+LTLIBRARIES = $(noinst_LTLIBRARIES)
+libtest_la_LIBADD =
+am__libtest_la_SOURCES_DIST = test.c test.h
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am_libtest_la_OBJECTS = \
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@ libtest_la-test.lo
+libtest_la_OBJECTS = $(am_libtest_la_OBJECTS)
+AM_V_lt = $(am__v_lt_@AM_V@)
+am__v_lt_ = $(am__v_lt_@AM_DEFAULT_V@)
+am__v_lt_0 = --silent
+am__v_lt_1 =
+libtest_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC $(AM_LIBTOOLFLAGS) \
+ $(LIBTOOLFLAGS) --mode=link $(CCLD) $(libtest_la_CFLAGS) \
+ $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@am_libtest_la_rpath =
+libvixDiskLib_la_LIBADD =
+am__libvixDiskLib_la_SOURCES_DIST = dummy-vddk.c
+@HAVE_PLUGINS_TRUE@am_libvixDiskLib_la_OBJECTS = \
+@HAVE_PLUGINS_TRUE@ libvixDiskLib_la-dummy-vddk.lo
+libvixDiskLib_la_OBJECTS = $(am_libvixDiskLib_la_OBJECTS)
+libvixDiskLib_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC \
+ $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \
+ $(AM_CFLAGS) $(CFLAGS) $(libvixDiskLib_la_LDFLAGS) $(LDFLAGS) \
+ -o $@
+@HAVE_PLUGINS_TRUE@am_libvixDiskLib_la_rpath =
+test_ansi_c_plugin_la_LIBADD =
+am__test_ansi_c_plugin_la_SOURCES_DIST = test-ansi-c-plugin.c \
+ $(top_srcdir)/include/nbdkit-plugin.h
+@CAN_TEST_ANSI_C_TRUE@am_test_ansi_c_plugin_la_OBJECTS = test_ansi_c_plugin_la-test-ansi-c-plugin.lo
+test_ansi_c_plugin_la_OBJECTS = $(am_test_ansi_c_plugin_la_OBJECTS)
+test_ansi_c_plugin_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC \
+ $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \
+ $(test_ansi_c_plugin_la_CFLAGS) $(CFLAGS) \
+ $(test_ansi_c_plugin_la_LDFLAGS) $(LDFLAGS) -o $@
+@CAN_TEST_ANSI_C_TRUE@am_test_ansi_c_plugin_la_rpath =
+test_cxx_filter_la_LIBADD =
+am__test_cxx_filter_la_SOURCES_DIST = test-cxx-filter.cpp \
+ $(top_srcdir)/include/nbdkit-filter.h
+@HAVE_CXX_TRUE@am_test_cxx_filter_la_OBJECTS = \
+@HAVE_CXX_TRUE@ test_cxx_filter_la-test-cxx-filter.lo
+test_cxx_filter_la_OBJECTS = $(am_test_cxx_filter_la_OBJECTS)
+test_cxx_filter_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
+ $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
+ $(test_cxx_filter_la_CXXFLAGS) $(CXXFLAGS) \
+ $(test_cxx_filter_la_LDFLAGS) $(LDFLAGS) -o $@
+@HAVE_CXX_TRUE@am_test_cxx_filter_la_rpath =
+test_cxx_plugin_la_LIBADD =
+am__test_cxx_plugin_la_SOURCES_DIST = test-cxx-plugin.cpp \
+ $(top_srcdir)/include/nbdkit-plugin.h
+@HAVE_CXX_TRUE@am_test_cxx_plugin_la_OBJECTS = \
+@HAVE_CXX_TRUE@ test_cxx_plugin_la-test-cxx-plugin.lo
+test_cxx_plugin_la_OBJECTS = $(am_test_cxx_plugin_la_OBJECTS)
+test_cxx_plugin_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CXX \
+ $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CXXLD) \
+ $(test_cxx_plugin_la_CXXFLAGS) $(CXXFLAGS) \
+ $(test_cxx_plugin_la_LDFLAGS) $(LDFLAGS) -o $@
+@HAVE_CXX_TRUE@am_test_cxx_plugin_la_rpath =
+test_layers_filter1_la_LIBADD =
+am__test_layers_filter1_la_SOURCES_DIST = test-layers-filter.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+@HAVE_PLUGINS_TRUE@am_test_layers_filter1_la_OBJECTS = test_layers_filter1_la-test-layers-filter.lo
+test_layers_filter1_la_OBJECTS = $(am_test_layers_filter1_la_OBJECTS)
+test_layers_filter1_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC \
+ $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \
+ $(test_layers_filter1_la_CFLAGS) $(CFLAGS) \
+ $(test_layers_filter1_la_LDFLAGS) $(LDFLAGS) -o $@
+@HAVE_PLUGINS_TRUE@am_test_layers_filter1_la_rpath =
+test_layers_filter2_la_LIBADD =
+am__test_layers_filter2_la_SOURCES_DIST = test-layers-filter.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+@HAVE_PLUGINS_TRUE@am_test_layers_filter2_la_OBJECTS = test_layers_filter2_la-test-layers-filter.lo
+test_layers_filter2_la_OBJECTS = $(am_test_layers_filter2_la_OBJECTS)
+test_layers_filter2_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC \
+ $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \
+ $(test_layers_filter2_la_CFLAGS) $(CFLAGS) \
+ $(test_layers_filter2_la_LDFLAGS) $(LDFLAGS) -o $@
+@HAVE_PLUGINS_TRUE@am_test_layers_filter2_la_rpath =
+test_layers_filter3_la_LIBADD =
+am__test_layers_filter3_la_SOURCES_DIST = test-layers-filter.c \
+ $(top_srcdir)/include/nbdkit-filter.h
+@HAVE_PLUGINS_TRUE@am_test_layers_filter3_la_OBJECTS = test_layers_filter3_la-test-layers-filter.lo
+test_layers_filter3_la_OBJECTS = $(am_test_layers_filter3_la_OBJECTS)
+test_layers_filter3_la_LINK = $(LIBTOOL) $(AM_V_lt) --tag=CC \
+ $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \
+ $(test_layers_filter3_la_CFLAGS) $(CFLAGS) \
+ $(test_layers_filter3_la_LDFLAGS) $(LDFLAGS) -o $@
+@HAVE_PLUGINS_TRUE@am_test_layers_filter3_la_rpath =
+test_layers_plugin_la_LIBADD =
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+ $(AM_LIBTOOLFLAGS) $(LIBTOOLFLAGS) --mode=link $(CCLD) \
+ $(test_layers_plugin_la_CFLAGS) $(CFLAGS) \
+ $(test_layers_plugin_la_LDFLAGS) $(LDFLAGS) -o $@
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+ $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
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+ $(CFLAGS) $(test_curl_LDFLAGS) $(LDFLAGS) -o $@
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+ $(LIBTOOLFLAGS) --mode=link $(CCLD) $(test_data_CFLAGS) \
+ $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
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+ $(LIBTOOLFLAGS) --mode=link $(CCLD) $(test_error_CFLAGS) \
+ $(CFLAGS) $(AM_LDFLAGS) $(LDFLAGS) -o $@
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+ $(test_exit_with_parent_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
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+ $(test_just_plugin_header_CFLAGS) $(CFLAGS) $(AM_LDFLAGS) \
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+ $(LIBTOOLFLAGS) --mode=link $(CCLD) $(test_layers_CFLAGS) \
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+OCAMLOPTDOTOPT = @OCAMLOPTDOTOPT@
+OCAMLOPTFLAGS = @OCAMLOPTFLAGS@
+OCAMLVERSION = @OCAMLVERSION@
+OTOOL = @OTOOL@
+OTOOL64 = @OTOOL64@
+PACKAGE = @PACKAGE@
+PACKAGE_BUGREPORT = @PACKAGE_BUGREPORT@
+PACKAGE_NAME = @PACKAGE_NAME@
+PACKAGE_STRING = @PACKAGE_STRING@
+PACKAGE_TARNAME = @PACKAGE_TARNAME@
+PACKAGE_URL = @PACKAGE_URL@
+PACKAGE_VERSION = @PACKAGE_VERSION@
+PATH_SEPARATOR = @PATH_SEPARATOR@
+PERL = @PERL@
+PERL_ARCHLIB = @PERL_ARCHLIB@
+PERL_CFLAGS = @PERL_CFLAGS@
+PERL_LDOPTS = @PERL_LDOPTS@
+PKG_CONFIG = @PKG_CONFIG@
+PKG_CONFIG_LIBDIR = @PKG_CONFIG_LIBDIR@
+PKG_CONFIG_PATH = @PKG_CONFIG_PATH@
+PODWRAPPER = @PODWRAPPER@
+PTHREAD_CC = @PTHREAD_CC@
+PTHREAD_CFLAGS = @PTHREAD_CFLAGS@
+PTHREAD_LIBS = @PTHREAD_LIBS@
+PYTHON = @PYTHON@
+PYTHON_CFLAGS = @PYTHON_CFLAGS@
+PYTHON_LDFLAGS = @PYTHON_LDFLAGS@
+PYTHON_LIBS = @PYTHON_LIBS@
+PYTHON_VERSION = @PYTHON_VERSION@
+RANLIB = @RANLIB@
+RUBY = @RUBY@
+RUBY_CFLAGS = @RUBY_CFLAGS@
+RUBY_LIBS = @RUBY_LIBS@
+SED = @SED@
+SET_MAKE = @SET_MAKE@
+SHELL = @SHELL@
+SSH_CFLAGS = @SSH_CFLAGS@
+SSH_LIBS = @SSH_LIBS@
+STRIP = @STRIP@
+TCL_CFLAGS = @TCL_CFLAGS@
+TCL_LIBS = @TCL_LIBS@
+VALGRIND = @VALGRIND@
+VALGRIND_CFLAGS = @VALGRIND_CFLAGS@
+VALGRIND_LIBS = @VALGRIND_LIBS@
+VERSION = @VERSION@
+WARNINGS_CFLAGS = @WARNINGS_CFLAGS@
+ZLIB_CFLAGS = @ZLIB_CFLAGS@
+ZLIB_LIBS = @ZLIB_LIBS@
+abs_builddir = @abs_builddir@
+abs_srcdir = @abs_srcdir@
+abs_top_builddir = @abs_top_builddir@
+abs_top_srcdir = @abs_top_srcdir@
+ac_ct_AR = @ac_ct_AR@
+ac_ct_CC = @ac_ct_CC@
+ac_ct_CXX = @ac_ct_CXX@
+ac_ct_DUMPBIN = @ac_ct_DUMPBIN@
+am__include = @am__include@
+am__leading_dot = @am__leading_dot@
+am__quote = @am__quote@
+am__tar = @am__tar@
+am__untar = @am__untar@
+ax_pthread_config = @ax_pthread_config@
+bashcompdir = @bashcompdir@
+bindir = @bindir@
+build = @build@
+build_alias = @build_alias@
+build_cpu = @build_cpu@
+build_os = @build_os@
+build_vendor = @build_vendor@
+builddir = @builddir@
+datadir = @datadir@
+datarootdir = @datarootdir@
+docdir = @docdir@
+dvidir = @dvidir@
+exec_prefix = @exec_prefix@
+filters = @filters@
+host = @host@
+host_alias = @host_alias@
+host_cpu = @host_cpu@
+host_os = @host_os@
+host_vendor = @host_vendor@
+htmldir = @htmldir@
+includedir = @includedir@
+infodir = @infodir@
+install_sh = @install_sh@
+lang_plugins = @lang_plugins@
+libdir = @libdir@
+libexecdir = @libexecdir@
+localedir = @localedir@
+localstatedir = @localstatedir@
+mandir = @mandir@
+mkdir_p = @mkdir_p@
+non_lang_plugins = @non_lang_plugins@
+oldincludedir = @oldincludedir@
+pdfdir = @pdfdir@
+plugins = @plugins@
+prefix = @prefix@
+program_transform_name = @program_transform_name@
+psdir = @psdir@
+sbindir = @sbindir@
+sharedstatedir = @sharedstatedir@
+srcdir = @srcdir@
+sysconfdir = @sysconfdir@
+target_alias = @target_alias@
+top_build_prefix = @top_build_prefix@
+top_builddir = @top_builddir@
+top_srcdir = @top_srcdir@
+plugindir = $(libdir)/nbdkit/plugins
+filterdir = $(libdir)/nbdkit/filters
+CLEANFILES = *~ *.cmi *.cmx *.cmxa *.so $(am__append_8) \
+ $(am__append_17) $(am__append_21) $(am__append_26) \
+ $(am__append_33) $(am__append_36) $(am__append_48) \
+ $(am__append_61)
+EXTRA_DIST = \
+ generate-file-data.sh \
+ generate-offset-data.sh \
+ make-pki.sh \
+ make-psk.sh \
+ python-exception.py \
+ README.tests \
+ shebang.pl \
+ shebang.py \
+ shebang.rb \
+ ssh/sshd_config.in \
+ test-ansi-c.sh \
+ test-blocksize.sh \
+ test-cache.sh \
+ test-cache-max-size.sh \
+ test-cache-on-read.sh \
+ test-captive.sh \
+ test-cow.sh \
+ test-cxx.sh \
+ test-data-7E.sh \
+ test-data-base64.sh \
+ test-data-extents.sh \
+ test-data-file.sh \
+ test-data-raw.sh \
+ test-debug-flags.sh \
+ test-dump-config.sh \
+ test-dump-plugin.sh \
+ test-dump-plugin-example4.sh \
+ test-eflags.sh \
+ test-error0.sh \
+ test-error10.sh \
+ test-error100.sh \
+ test-file-extents.sh \
+ test-floppy.sh \
+ test-foreground.sh \
+ test-fua.sh \
+ test-full.sh \
+ test-help.sh \
+ test-help-plugin.sh \
+ test-ip.sh \
+ test-iso.sh \
+ test-layers.sh \
+ test-linuxdisk.sh \
+ test-linuxdisk-copy-out.sh \
+ test-log.sh \
+ test.lua \
+ test-memory-largest.sh \
+ test-memory-largest-for-qemu.sh \
+ test-nozero.sh \
+ test-null-extents.sh \
+ test_ocaml_plugin.ml \
+ test-ocaml.c \
+ test-offset2.sh \
+ test-offset-extents.sh \
+ test-parallel-file.sh \
+ test-parallel-nbd.sh \
+ test-partition1.sh \
+ test-partition2.sh \
+ test-partitioning1.sh \
+ test-partitioning2.sh \
+ test-partitioning3.sh \
+ test-partitioning4.sh \
+ test-partitioning5.sh \
+ test-partitioning6.sh \
+ test-pattern.sh \
+ test-pattern-largest.sh \
+ test-pattern-largest-for-qemu.sh \
+ test-python-exception.sh \
+ test.pl \
+ test.py \
+ test-rate.sh \
+ test-rate-dynamic.sh \
+ test.rb \
+ test-readahead-copy.sh \
+ test-ssh.sh \
+ test.tcl \
+ test-shebang-perl.sh \
+ test-shebang-python.sh \
+ test-shebang-ruby.sh \
+ test-shell.sh \
+ test-sh-extents.sh \
+ test-single.sh \
+ test-single-from-file.sh \
+ test-start.sh \
+ test-random-sock.sh \
+ test-tls.sh \
+ test-tls-psk.sh \
+ test-truncate1.sh \
+ test-truncate2.sh \
+ test-truncate3.sh \
+ test-truncate-extents.sh \
+ test-vddk.sh \
+ test-vddk-real.sh \
+ test-version.sh \
+ test-version-filter.sh \
+ test-version-plugin.sh \
+ test-zero.sh
+
+
+# PKI files for the TLS tests.
+
+# PSK keys for the TLS-PSK tests.
+check_DATA = pki/.stamp keys.psk $(am__append_7) $(am__append_16) \
+ $(am__append_20) $(am__append_25) $(am__append_32) \
+ $(am__append_35) $(am__append_47) $(am__append_60)
+check_SCRIPTS = $(am__append_41)
+check_LTLIBRARIES = $(am__append_13)
+noinst_LTLIBRARIES = $(am__append_4) $(am__append_6) $(am__append_38)
+
+# Ensure we're testing the local copy by running everything through
+# the nbdkit helper script in the top build directory.
+TESTS_ENVIRONMENT = PATH=$(abs_top_builddir):$(PATH) SRCDIR=$(srcdir) \
+ $(am__append_12)
+@HAVE_PLUGINS_TRUE@test_socket_activation_SOURCES = test-socket-activation.c
+@HAVE_PLUGINS_TRUE@test_socket_activation_CFLAGS = $(WARNINGS_CFLAGS)
+test_just_plugin_header_SOURCES = \
+ test-just-plugin-header.c
+
+test_just_plugin_header_CPPFLAGS = \
+ -I$(top_srcdir)/include
+
+test_just_plugin_header_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+
+test_just_filter_header_SOURCES = \
+ test-just-filter-header.c
+
+test_just_filter_header_CPPFLAGS = \
+ -I$(top_srcdir)/include
+
+test_just_filter_header_CFLAGS = \
+ $(WARNINGS_CFLAGS)
+
+@CAN_TEST_ANSI_C_TRUE@test_ansi_c_plugin_la_SOURCES = \
+@CAN_TEST_ANSI_C_TRUE@ test-ansi-c-plugin.c \
+@CAN_TEST_ANSI_C_TRUE@ $(top_srcdir)/include/nbdkit-plugin.h
+
+@CAN_TEST_ANSI_C_TRUE@test_ansi_c_plugin_la_CPPFLAGS = \
+@CAN_TEST_ANSI_C_TRUE@ -std=c90 -pedantic \
+@CAN_TEST_ANSI_C_TRUE@ -I$(top_srcdir)/include
+
+@CAN_TEST_ANSI_C_TRUE@test_ansi_c_plugin_la_CFLAGS = \
+@CAN_TEST_ANSI_C_TRUE@ $(WARNINGS_CFLAGS)
+
+# For use of the -rpath option, see:
+# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html
+@CAN_TEST_ANSI_C_TRUE@test_ansi_c_plugin_la_LDFLAGS = \
+@CAN_TEST_ANSI_C_TRUE@ -module -avoid-version -shared -rpath /nowhere
+
+@HAVE_CXX_TRUE@test_cxx_plugin_la_SOURCES = \
+@HAVE_CXX_TRUE@ test-cxx-plugin.cpp \
+@HAVE_CXX_TRUE@ $(top_srcdir)/include/nbdkit-plugin.h
+
+@HAVE_CXX_TRUE@test_cxx_plugin_la_CPPFLAGS = \
+@HAVE_CXX_TRUE@ -I$(top_srcdir)/include
+
+@HAVE_CXX_TRUE@test_cxx_plugin_la_CXXFLAGS = \
+@HAVE_CXX_TRUE@ $(WARNINGS_CFLAGS)
+
+# For use of the -rpath option, see:
+# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html
+@HAVE_CXX_TRUE@test_cxx_plugin_la_LDFLAGS = \
+@HAVE_CXX_TRUE@ -module -avoid-version -shared -rpath /nowhere
+
+@HAVE_CXX_TRUE@test_cxx_filter_la_SOURCES = \
+@HAVE_CXX_TRUE@ test-cxx-filter.cpp \
+@HAVE_CXX_TRUE@ $(top_srcdir)/include/nbdkit-filter.h
+
+@HAVE_CXX_TRUE@test_cxx_filter_la_CPPFLAGS = \
+@HAVE_CXX_TRUE@ -I$(top_srcdir)/include
+
+@HAVE_CXX_TRUE@test_cxx_filter_la_CXXFLAGS = \
+@HAVE_CXX_TRUE@ $(WARNINGS_CFLAGS)
+
+# For use of the -rpath option, see:
+# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html
+@HAVE_CXX_TRUE@test_cxx_filter_la_LDFLAGS = \
+@HAVE_CXX_TRUE@ -module -avoid-version -shared -rpath /nowhere
+
+test_exit_with_parent_SOURCES = \
+ test-exit-with-parent.c test.h
+
+test_exit_with_parent_CPPFLAGS = \
+ -I$(top_srcdir)/common/include
+
+test_exit_with_parent_CFLAGS = \
+ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+
+
+# Keys are expensive to recreate so only delete them when we do
+# ‘make distclean’.
+DISTCLEANFILES = keys.psk $(am__append_37)
+
+# Most in-depth tests need libguestfs, since that is a convenient way to
+# drive qemu.
+
+# data plugin test.
+
+# file plugin test.
+
+# memory plugin test.
+
+# nbd plugin test.
+
+# null plugin test.
+
+# random plugin test.
+
+# Shell (sh) plugin test.
+
+# delay filter test.
+
+# error filter test.
+
+# readahead filter test.
+@HAVE_PLUGINS_TRUE@LIBGUESTFS_TESTS = $(am__append_14) \
+@HAVE_PLUGINS_TRUE@ $(am__append_18) test-data $(am__append_19) \
+@HAVE_PLUGINS_TRUE@ test-file test-file-block $(am__append_24) \
+@HAVE_PLUGINS_TRUE@ test-memory test-nbd test-null test-random \
+@HAVE_PLUGINS_TRUE@ test-split $(am__append_40) \
+@HAVE_PLUGINS_TRUE@ $(am__append_43) $(am__append_45) \
+@HAVE_PLUGINS_TRUE@ test-shell $(am__append_50) \
+@HAVE_PLUGINS_TRUE@ $(am__append_51) test-delay test-error \
+@HAVE_PLUGINS_TRUE@ test-offset test-readahead $(am__append_59) \
+@HAVE_PLUGINS_TRUE@ $(am__append_62)
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@libtest_la_SOURCES = test.c test.h
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@libtest_la_CFLAGS = $(WARNINGS_CFLAGS)
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_connect_SOURCES = test-connect.c test.h
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_connect_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_connect_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_newstyle_SOURCES = test-newstyle.c test.h
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_newstyle_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_newstyle_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_oldstyle_SOURCES = test-oldstyle.c test.h
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_oldstyle_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_LIBGUESTFS_TRUE@@HAVE_PLUGINS_TRUE@test_oldstyle_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@test_curl_SOURCES = \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test-curl.c \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ web-server.c \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ web-server.h \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ test.h
+
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@test_curl_CFLAGS = \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ $(WARNINGS_CFLAGS) \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ $(LIBGUESTFS_CFLAGS) \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ $(PTHREAD_CFLAGS)
+
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@test_curl_LDFLAGS = \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ $(PTHREAD_LIBS)
+
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@test_curl_LDADD = \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ libtest.la \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ $(LIBGUESTFS_LIBS)
+
+@HAVE_PLUGINS_TRUE@test_data_SOURCES = test-data.c test.h
+@HAVE_PLUGINS_TRUE@test_data_CPPFLAGS = -I$(top_srcdir)/common/include
+@HAVE_PLUGINS_TRUE@test_data_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_PLUGINS_TRUE@test_data_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@test_ext2_SOURCES = test-ext2.c test.h
+@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@test_ext2_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@test_ext2_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PLUGINS_TRUE@test_file_SOURCES = test-file.c test.h
+@HAVE_PLUGINS_TRUE@test_file_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_PLUGINS_TRUE@test_file_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PLUGINS_TRUE@test_file_block_SOURCES = test-file-block.c test.h
+@HAVE_PLUGINS_TRUE@test_file_block_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_PLUGINS_TRUE@test_file_block_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_ZLIB_TRUE@test_gzip_SOURCES = test-gzip.c test.h
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_ZLIB_TRUE@test_gzip_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_ZLIB_TRUE@test_gzip_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PLUGINS_TRUE@test_memory_SOURCES = test-memory.c test.h
+@HAVE_PLUGINS_TRUE@test_memory_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_PLUGINS_TRUE@test_memory_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PLUGINS_TRUE@test_nbd_SOURCES = test-nbd.c test.h
+@HAVE_PLUGINS_TRUE@test_nbd_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_PLUGINS_TRUE@test_nbd_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PLUGINS_TRUE@test_null_SOURCES = test-null.c test.h
+@HAVE_PLUGINS_TRUE@test_null_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_PLUGINS_TRUE@test_null_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PLUGINS_TRUE@test_random_SOURCES = test-random.c test.h
+@HAVE_PLUGINS_TRUE@test_random_CPPFLAGS = -I $(top_srcdir)/common/include
+@HAVE_PLUGINS_TRUE@test_random_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_PLUGINS_TRUE@test_random_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PLUGINS_TRUE@test_split_SOURCES = test-split.c test.h
+@HAVE_PLUGINS_TRUE@test_split_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_PLUGINS_TRUE@test_split_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@SSH_RANDOM_PORT := $(shell bash -c 'echo $$(( 10000 + $$RANDOM ))')
+@HAVE_PLUGINS_TRUE@test_streaming_SOURCES = test-streaming.c test.h
+@HAVE_PLUGINS_TRUE@test_streaming_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_PLUGINS_TRUE@test_streaming_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PLUGINS_TRUE@libvixDiskLib_la_SOURCES = \
+@HAVE_PLUGINS_TRUE@ dummy-vddk.c
+
+@HAVE_PLUGINS_TRUE@libvixDiskLib_la_CPPFLAGS = \
+@HAVE_PLUGINS_TRUE@ -I$(top_srcdir)/plugins/vddk
+
+@HAVE_PLUGINS_TRUE@libvixDiskLib_la_CXXFLAGS = \
+@HAVE_PLUGINS_TRUE@ $(WARNINGS_CFLAGS)
+
+# For use of the -rpath option, see:
+# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html
+@HAVE_PLUGINS_TRUE@libvixDiskLib_la_LDFLAGS = \
+@HAVE_PLUGINS_TRUE@ -shared -version-number 6:0:0 -rpath /nowhere
+
+
+# This is somewhat different from the other tests because we have
+# to build an actual plugin here.
+@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@test_ocaml_SOURCES = test-ocaml.c test.h
+@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@test_ocaml_CFLAGS = \
+@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+
+@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@test_ocaml_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@test_perl_SOURCES = test-lang-plugins.c test.h
+@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@test_perl_CFLAGS = \
+@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@ -DLANG='"perl"' -DSCRIPT='"$(srcdir)/test.pl"' \
+@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+
+@HAVE_PERL_TRUE@@HAVE_PLUGINS_TRUE@test_perl_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@test_python_SOURCES = test-lang-plugins.c test.h
+@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@test_python_CFLAGS = \
+@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@ -DLANG='"python"' -DSCRIPT='"$(srcdir)/test.py"' \
+@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+
+@HAVE_PLUGINS_TRUE@@HAVE_PYTHON_TRUE@test_python_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PLUGINS_TRUE@@HAVE_RUBY_TRUE@test_ruby_SOURCES = test-lang-plugins.c test.h
+@HAVE_PLUGINS_TRUE@@HAVE_RUBY_TRUE@test_ruby_CFLAGS = \
+@HAVE_PLUGINS_TRUE@@HAVE_RUBY_TRUE@ -DLANG='"ruby"' -DSCRIPT='"$(srcdir)/test.rb"' \
+@HAVE_PLUGINS_TRUE@@HAVE_RUBY_TRUE@ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+
+@HAVE_PLUGINS_TRUE@@HAVE_RUBY_TRUE@test_ruby_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PLUGINS_TRUE@test_shell_SOURCES = test-lang-plugins.c test.h
+@HAVE_PLUGINS_TRUE@test_shell_CFLAGS = \
+@HAVE_PLUGINS_TRUE@ -DLANG='"sh"' -DSCRIPT='"$(srcdir)/test-shell.sh"' \
+@HAVE_PLUGINS_TRUE@ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+
+@HAVE_PLUGINS_TRUE@test_shell_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PLUGINS_TRUE@@HAVE_TCL_TRUE@test_tcl_SOURCES = test-lang-plugins.c test.h
+@HAVE_PLUGINS_TRUE@@HAVE_TCL_TRUE@test_tcl_CFLAGS = \
+@HAVE_PLUGINS_TRUE@@HAVE_TCL_TRUE@ -DLANG='"tcl"' -DSCRIPT='"$(srcdir)/test.tcl"' \
+@HAVE_PLUGINS_TRUE@@HAVE_TCL_TRUE@ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+
+@HAVE_PLUGINS_TRUE@@HAVE_TCL_TRUE@test_tcl_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_LUA_TRUE@@HAVE_PLUGINS_TRUE@test_lua_SOURCES = test-lang-plugins.c test.h
+@HAVE_LUA_TRUE@@HAVE_PLUGINS_TRUE@test_lua_CFLAGS = \
+@HAVE_LUA_TRUE@@HAVE_PLUGINS_TRUE@ -DLANG='"lua"' -DSCRIPT='"$(srcdir)/test.lua"' \
+@HAVE_LUA_TRUE@@HAVE_PLUGINS_TRUE@ $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+
+@HAVE_LUA_TRUE@@HAVE_PLUGINS_TRUE@test_lua_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PLUGINS_TRUE@test_layers_SOURCES = \
+@HAVE_PLUGINS_TRUE@ test-layers.c
+
+@HAVE_PLUGINS_TRUE@test_layers_CPPFLAGS = \
+@HAVE_PLUGINS_TRUE@ -I$(top_srcdir)/common/include \
+@HAVE_PLUGINS_TRUE@ -I$(top_srcdir)/common/protocol \
+@HAVE_PLUGINS_TRUE@ -I$(top_srcdir)/server
+
+@HAVE_PLUGINS_TRUE@test_layers_CFLAGS = \
+@HAVE_PLUGINS_TRUE@ $(WARNINGS_CFLAGS) \
+@HAVE_PLUGINS_TRUE@ $(PTHREAD_CFLAGS)
+
+@HAVE_PLUGINS_TRUE@test_layers_LDFLAGS = \
+@HAVE_PLUGINS_TRUE@ $(PTHREAD_LIBS)
+
+@HAVE_PLUGINS_TRUE@test_layers_DEPENDENCIES = \
+@HAVE_PLUGINS_TRUE@ test-layers-plugin.la \
+@HAVE_PLUGINS_TRUE@ test-layers-filter1.la \
+@HAVE_PLUGINS_TRUE@ test-layers-filter2.la \
+@HAVE_PLUGINS_TRUE@ test-layers-filter3.la
+
+@HAVE_PLUGINS_TRUE@test_layers_plugin_la_SOURCES = \
+@HAVE_PLUGINS_TRUE@ test-layers-plugin.c \
+@HAVE_PLUGINS_TRUE@ $(top_srcdir)/include/nbdkit-plugin.h
+
+@HAVE_PLUGINS_TRUE@test_layers_plugin_la_CPPFLAGS = -I$(top_srcdir)/include
+@HAVE_PLUGINS_TRUE@test_layers_plugin_la_CFLAGS = $(WARNINGS_CFLAGS)
+# For use of the -rpath option, see:
+# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html
+@HAVE_PLUGINS_TRUE@test_layers_plugin_la_LDFLAGS = \
+@HAVE_PLUGINS_TRUE@ -module -avoid-version -shared -rpath /nowhere
+
+@HAVE_PLUGINS_TRUE@test_layers_filter1_la_SOURCES = \
+@HAVE_PLUGINS_TRUE@ test-layers-filter.c \
+@HAVE_PLUGINS_TRUE@ $(top_srcdir)/include/nbdkit-filter.h
+
+@HAVE_PLUGINS_TRUE@test_layers_filter1_la_CPPFLAGS = -I$(top_srcdir)/include
+@HAVE_PLUGINS_TRUE@test_layers_filter1_la_CFLAGS = $(WARNINGS_CFLAGS) -Dlayer='"filter1"'
+# For use of the -rpath option, see:
+# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html
+@HAVE_PLUGINS_TRUE@test_layers_filter1_la_LDFLAGS = \
+@HAVE_PLUGINS_TRUE@ -module -avoid-version -shared -rpath /nowhere
+
+@HAVE_PLUGINS_TRUE@test_layers_filter2_la_SOURCES = \
+@HAVE_PLUGINS_TRUE@ test-layers-filter.c \
+@HAVE_PLUGINS_TRUE@ $(top_srcdir)/include/nbdkit-filter.h
+
+@HAVE_PLUGINS_TRUE@test_layers_filter2_la_CPPFLAGS = -I$(top_srcdir)/include
+@HAVE_PLUGINS_TRUE@test_layers_filter2_la_CFLAGS = $(WARNINGS_CFLAGS) -Dlayer='"filter2"'
+# For use of the -rpath option, see:
+# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html
+@HAVE_PLUGINS_TRUE@test_layers_filter2_la_LDFLAGS = \
+@HAVE_PLUGINS_TRUE@ -module -avoid-version -shared -rpath /nowhere
+
+@HAVE_PLUGINS_TRUE@test_layers_filter3_la_SOURCES = \
+@HAVE_PLUGINS_TRUE@ test-layers-filter.c \
+@HAVE_PLUGINS_TRUE@ $(top_srcdir)/include/nbdkit-filter.h
+
+@HAVE_PLUGINS_TRUE@test_layers_filter3_la_CPPFLAGS = -I$(top_srcdir)/include
+@HAVE_PLUGINS_TRUE@test_layers_filter3_la_CFLAGS = $(WARNINGS_CFLAGS) -Dlayer='"filter3"'
+# For use of the -rpath option, see:
+# https://lists.gnu.org/archive/html/libtool/2007-07/msg00067.html
+@HAVE_PLUGINS_TRUE@test_layers_filter3_la_LDFLAGS = \
+@HAVE_PLUGINS_TRUE@ -module -avoid-version -shared -rpath /nowhere
+
+@HAVE_PLUGINS_TRUE@test_delay_SOURCES = test-delay.c test.h
+@HAVE_PLUGINS_TRUE@test_delay_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_PLUGINS_TRUE@test_delay_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PLUGINS_TRUE@test_error_SOURCES = test-error.c test.h
+@HAVE_PLUGINS_TRUE@test_error_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_PLUGINS_TRUE@test_error_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PLUGINS_TRUE@test_offset_SOURCES = test-offset.c test.h
+@HAVE_PLUGINS_TRUE@test_offset_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_PLUGINS_TRUE@test_offset_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_PLUGINS_TRUE@test_readahead_SOURCES = test-readahead.c test.h
+@HAVE_PLUGINS_TRUE@test_readahead_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_PLUGINS_TRUE@test_readahead_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@test_xz_SOURCES = test-xz.c test.h
+@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@test_xz_CFLAGS = $(WARNINGS_CFLAGS) $(LIBGUESTFS_CFLAGS)
+@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@test_xz_LDADD = libtest.la $(LIBGUESTFS_LIBS)
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@test_xz_curl_SOURCES = \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@ test-xz-curl.c \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@ web-server.c \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@ web-server.h \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@ test.h
+
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@test_xz_curl_CFLAGS = \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@ $(WARNINGS_CFLAGS) \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@ $(LIBGUESTFS_CFLAGS) \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@ $(PTHREAD_CFLAGS)
+
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@test_xz_curl_LDFLAGS = \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@ $(PTHREAD_LIBS)
+
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@test_xz_curl_LDADD = \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@ libtest.la \
+@HAVE_CURL_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@ $(LIBGUESTFS_LIBS)
+
+all: all-am
+
+.SUFFIXES:
+.SUFFIXES: .c .cpp .lo .log .o .obj .test .test$(EXEEXT) .trs
+$(srcdir)/Makefile.in: $(srcdir)/Makefile.am $(top_srcdir)/common-rules.mk $(am__configure_deps)
+ @for dep in $?; do \
+ case '$(am__configure_deps)' in \
+ *$$dep*) \
+ ( cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh ) \
+ && { if test -f $@; then exit 0; else break; fi; }; \
+ exit 1;; \
+ esac; \
+ done; \
+ echo ' cd $(top_srcdir) && $(AUTOMAKE) --foreign tests/Makefile'; \
+ $(am__cd) $(top_srcdir) && \
+ $(AUTOMAKE) --foreign tests/Makefile
+Makefile: $(srcdir)/Makefile.in $(top_builddir)/config.status
+ @case '$?' in \
+ *config.status*) \
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh;; \
+ *) \
+ echo ' cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles)'; \
+ cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@ $(am__maybe_remake_depfiles);; \
+ esac;
+$(top_srcdir)/common-rules.mk $(am__empty):
+
+$(top_builddir)/config.status: $(top_srcdir)/configure $(CONFIG_STATUS_DEPENDENCIES)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+
+$(top_srcdir)/configure: $(am__configure_deps)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(ACLOCAL_M4): $(am__aclocal_m4_deps)
+ cd $(top_builddir) && $(MAKE) $(AM_MAKEFLAGS) am--refresh
+$(am__aclocal_m4_deps):
+functions.sh: $(top_builddir)/config.status $(srcdir)/functions.sh.in
+ cd $(top_builddir) && $(SHELL) ./config.status $(subdir)/$@
+
+clean-checkPROGRAMS:
+ @list='$(check_PROGRAMS)'; test -n "$$list" || exit 0; \
+ echo " rm -f" $$list; \
+ rm -f $$list || exit $$?; \
+ test -n "$(EXEEXT)" || exit 0; \
+ list=`for p in $$list; do echo "$$p"; done | sed 's/$(EXEEXT)$$//'`; \
+ echo " rm -f" $$list; \
+ rm -f $$list
+
+clean-checkLTLIBRARIES:
+ -test -z "$(check_LTLIBRARIES)" || rm -f $(check_LTLIBRARIES)
+ @list='$(check_LTLIBRARIES)'; \
+ locs=`for p in $$list; do echo $$p; done | \
+ sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+ sort -u`; \
+ test -z "$$locs" || { \
+ echo rm -f $${locs}; \
+ rm -f $${locs}; \
+ }
+
+clean-noinstLTLIBRARIES:
+ -test -z "$(noinst_LTLIBRARIES)" || rm -f $(noinst_LTLIBRARIES)
+ @list='$(noinst_LTLIBRARIES)'; \
+ locs=`for p in $$list; do echo $$p; done | \
+ sed 's|^[^/]*$$|.|; s|/[^/]*$$||; s|$$|/so_locations|' | \
+ sort -u`; \
+ test -z "$$locs" || { \
+ echo rm -f $${locs}; \
+ rm -f $${locs}; \
+ }
+
+libtest.la: $(libtest_la_OBJECTS) $(libtest_la_DEPENDENCIES) $(EXTRA_libtest_la_DEPENDENCIES)
+ $(AM_V_CCLD)$(libtest_la_LINK) $(am_libtest_la_rpath) $(libtest_la_OBJECTS) $(libtest_la_LIBADD) $(LIBS)
+
+libvixDiskLib.la: $(libvixDiskLib_la_OBJECTS) $(libvixDiskLib_la_DEPENDENCIES) $(EXTRA_libvixDiskLib_la_DEPENDENCIES)
+ $(AM_V_CCLD)$(libvixDiskLib_la_LINK) $(am_libvixDiskLib_la_rpath) $(libvixDiskLib_la_OBJECTS) $(libvixDiskLib_la_LIBADD) $(LIBS)
+
+test-ansi-c-plugin.la: $(test_ansi_c_plugin_la_OBJECTS) $(test_ansi_c_plugin_la_DEPENDENCIES) $(EXTRA_test_ansi_c_plugin_la_DEPENDENCIES)
+ $(AM_V_CCLD)$(test_ansi_c_plugin_la_LINK) $(am_test_ansi_c_plugin_la_rpath) $(test_ansi_c_plugin_la_OBJECTS) $(test_ansi_c_plugin_la_LIBADD) $(LIBS)
+
+test-cxx-filter.la: $(test_cxx_filter_la_OBJECTS) $(test_cxx_filter_la_DEPENDENCIES) $(EXTRA_test_cxx_filter_la_DEPENDENCIES)
+ $(AM_V_CXXLD)$(test_cxx_filter_la_LINK) $(am_test_cxx_filter_la_rpath) $(test_cxx_filter_la_OBJECTS) $(test_cxx_filter_la_LIBADD) $(LIBS)
+
+test-cxx-plugin.la: $(test_cxx_plugin_la_OBJECTS) $(test_cxx_plugin_la_DEPENDENCIES) $(EXTRA_test_cxx_plugin_la_DEPENDENCIES)
+ $(AM_V_CXXLD)$(test_cxx_plugin_la_LINK) $(am_test_cxx_plugin_la_rpath) $(test_cxx_plugin_la_OBJECTS) $(test_cxx_plugin_la_LIBADD) $(LIBS)
+
+test-layers-filter1.la: $(test_layers_filter1_la_OBJECTS) $(test_layers_filter1_la_DEPENDENCIES) $(EXTRA_test_layers_filter1_la_DEPENDENCIES)
+ $(AM_V_CCLD)$(test_layers_filter1_la_LINK) $(am_test_layers_filter1_la_rpath) $(test_layers_filter1_la_OBJECTS) $(test_layers_filter1_la_LIBADD) $(LIBS)
+
+test-layers-filter2.la: $(test_layers_filter2_la_OBJECTS) $(test_layers_filter2_la_DEPENDENCIES) $(EXTRA_test_layers_filter2_la_DEPENDENCIES)
+ $(AM_V_CCLD)$(test_layers_filter2_la_LINK) $(am_test_layers_filter2_la_rpath) $(test_layers_filter2_la_OBJECTS) $(test_layers_filter2_la_LIBADD) $(LIBS)
+
+test-layers-filter3.la: $(test_layers_filter3_la_OBJECTS) $(test_layers_filter3_la_DEPENDENCIES) $(EXTRA_test_layers_filter3_la_DEPENDENCIES)
+ $(AM_V_CCLD)$(test_layers_filter3_la_LINK) $(am_test_layers_filter3_la_rpath) $(test_layers_filter3_la_OBJECTS) $(test_layers_filter3_la_LIBADD) $(LIBS)
+
+test-layers-plugin.la: $(test_layers_plugin_la_OBJECTS) $(test_layers_plugin_la_DEPENDENCIES) $(EXTRA_test_layers_plugin_la_DEPENDENCIES)
+ $(AM_V_CCLD)$(test_layers_plugin_la_LINK) $(am_test_layers_plugin_la_rpath) $(test_layers_plugin_la_OBJECTS) $(test_layers_plugin_la_LIBADD) $(LIBS)
+
+test-connect$(EXEEXT): $(test_connect_OBJECTS) $(test_connect_DEPENDENCIES) $(EXTRA_test_connect_DEPENDENCIES)
+ @rm -f test-connect$(EXEEXT)
+ $(AM_V_CCLD)$(test_connect_LINK) $(test_connect_OBJECTS) $(test_connect_LDADD) $(LIBS)
+
+test-curl$(EXEEXT): $(test_curl_OBJECTS) $(test_curl_DEPENDENCIES) $(EXTRA_test_curl_DEPENDENCIES)
+ @rm -f test-curl$(EXEEXT)
+ $(AM_V_CCLD)$(test_curl_LINK) $(test_curl_OBJECTS) $(test_curl_LDADD) $(LIBS)
+
+test-data$(EXEEXT): $(test_data_OBJECTS) $(test_data_DEPENDENCIES) $(EXTRA_test_data_DEPENDENCIES)
+ @rm -f test-data$(EXEEXT)
+ $(AM_V_CCLD)$(test_data_LINK) $(test_data_OBJECTS) $(test_data_LDADD) $(LIBS)
+
+test-delay$(EXEEXT): $(test_delay_OBJECTS) $(test_delay_DEPENDENCIES) $(EXTRA_test_delay_DEPENDENCIES)
+ @rm -f test-delay$(EXEEXT)
+ $(AM_V_CCLD)$(test_delay_LINK) $(test_delay_OBJECTS) $(test_delay_LDADD) $(LIBS)
+
+test-error$(EXEEXT): $(test_error_OBJECTS) $(test_error_DEPENDENCIES) $(EXTRA_test_error_DEPENDENCIES)
+ @rm -f test-error$(EXEEXT)
+ $(AM_V_CCLD)$(test_error_LINK) $(test_error_OBJECTS) $(test_error_LDADD) $(LIBS)
+
+test-exit-with-parent$(EXEEXT): $(test_exit_with_parent_OBJECTS) $(test_exit_with_parent_DEPENDENCIES) $(EXTRA_test_exit_with_parent_DEPENDENCIES)
+ @rm -f test-exit-with-parent$(EXEEXT)
+ $(AM_V_CCLD)$(test_exit_with_parent_LINK) $(test_exit_with_parent_OBJECTS) $(test_exit_with_parent_LDADD) $(LIBS)
+
+test-ext2$(EXEEXT): $(test_ext2_OBJECTS) $(test_ext2_DEPENDENCIES) $(EXTRA_test_ext2_DEPENDENCIES)
+ @rm -f test-ext2$(EXEEXT)
+ $(AM_V_CCLD)$(test_ext2_LINK) $(test_ext2_OBJECTS) $(test_ext2_LDADD) $(LIBS)
+
+test-file$(EXEEXT): $(test_file_OBJECTS) $(test_file_DEPENDENCIES) $(EXTRA_test_file_DEPENDENCIES)
+ @rm -f test-file$(EXEEXT)
+ $(AM_V_CCLD)$(test_file_LINK) $(test_file_OBJECTS) $(test_file_LDADD) $(LIBS)
+
+test-file-block$(EXEEXT): $(test_file_block_OBJECTS) $(test_file_block_DEPENDENCIES) $(EXTRA_test_file_block_DEPENDENCIES)
+ @rm -f test-file-block$(EXEEXT)
+ $(AM_V_CCLD)$(test_file_block_LINK) $(test_file_block_OBJECTS) $(test_file_block_LDADD) $(LIBS)
+
+test-gzip$(EXEEXT): $(test_gzip_OBJECTS) $(test_gzip_DEPENDENCIES) $(EXTRA_test_gzip_DEPENDENCIES)
+ @rm -f test-gzip$(EXEEXT)
+ $(AM_V_CCLD)$(test_gzip_LINK) $(test_gzip_OBJECTS) $(test_gzip_LDADD) $(LIBS)
+
+test-just-filter-header$(EXEEXT): $(test_just_filter_header_OBJECTS) $(test_just_filter_header_DEPENDENCIES) $(EXTRA_test_just_filter_header_DEPENDENCIES)
+ @rm -f test-just-filter-header$(EXEEXT)
+ $(AM_V_CCLD)$(test_just_filter_header_LINK) $(test_just_filter_header_OBJECTS) $(test_just_filter_header_LDADD) $(LIBS)
+
+test-just-plugin-header$(EXEEXT): $(test_just_plugin_header_OBJECTS) $(test_just_plugin_header_DEPENDENCIES) $(EXTRA_test_just_plugin_header_DEPENDENCIES)
+ @rm -f test-just-plugin-header$(EXEEXT)
+ $(AM_V_CCLD)$(test_just_plugin_header_LINK) $(test_just_plugin_header_OBJECTS) $(test_just_plugin_header_LDADD) $(LIBS)
+
+test-layers$(EXEEXT): $(test_layers_OBJECTS) $(test_layers_DEPENDENCIES) $(EXTRA_test_layers_DEPENDENCIES)
+ @rm -f test-layers$(EXEEXT)
+ $(AM_V_CCLD)$(test_layers_LINK) $(test_layers_OBJECTS) $(test_layers_LDADD) $(LIBS)
+
+test-lua$(EXEEXT): $(test_lua_OBJECTS) $(test_lua_DEPENDENCIES) $(EXTRA_test_lua_DEPENDENCIES)
+ @rm -f test-lua$(EXEEXT)
+ $(AM_V_CCLD)$(test_lua_LINK) $(test_lua_OBJECTS) $(test_lua_LDADD) $(LIBS)
+
+test-memory$(EXEEXT): $(test_memory_OBJECTS) $(test_memory_DEPENDENCIES) $(EXTRA_test_memory_DEPENDENCIES)
+ @rm -f test-memory$(EXEEXT)
+ $(AM_V_CCLD)$(test_memory_LINK) $(test_memory_OBJECTS) $(test_memory_LDADD) $(LIBS)
+
+test-nbd$(EXEEXT): $(test_nbd_OBJECTS) $(test_nbd_DEPENDENCIES) $(EXTRA_test_nbd_DEPENDENCIES)
+ @rm -f test-nbd$(EXEEXT)
+ $(AM_V_CCLD)$(test_nbd_LINK) $(test_nbd_OBJECTS) $(test_nbd_LDADD) $(LIBS)
+
+test-newstyle$(EXEEXT): $(test_newstyle_OBJECTS) $(test_newstyle_DEPENDENCIES) $(EXTRA_test_newstyle_DEPENDENCIES)
+ @rm -f test-newstyle$(EXEEXT)
+ $(AM_V_CCLD)$(test_newstyle_LINK) $(test_newstyle_OBJECTS) $(test_newstyle_LDADD) $(LIBS)
+
+test-null$(EXEEXT): $(test_null_OBJECTS) $(test_null_DEPENDENCIES) $(EXTRA_test_null_DEPENDENCIES)
+ @rm -f test-null$(EXEEXT)
+ $(AM_V_CCLD)$(test_null_LINK) $(test_null_OBJECTS) $(test_null_LDADD) $(LIBS)
+
+test-ocaml$(EXEEXT): $(test_ocaml_OBJECTS) $(test_ocaml_DEPENDENCIES) $(EXTRA_test_ocaml_DEPENDENCIES)
+ @rm -f test-ocaml$(EXEEXT)
+ $(AM_V_CCLD)$(test_ocaml_LINK) $(test_ocaml_OBJECTS) $(test_ocaml_LDADD) $(LIBS)
+
+test-offset$(EXEEXT): $(test_offset_OBJECTS) $(test_offset_DEPENDENCIES) $(EXTRA_test_offset_DEPENDENCIES)
+ @rm -f test-offset$(EXEEXT)
+ $(AM_V_CCLD)$(test_offset_LINK) $(test_offset_OBJECTS) $(test_offset_LDADD) $(LIBS)
+
+test-oldstyle$(EXEEXT): $(test_oldstyle_OBJECTS) $(test_oldstyle_DEPENDENCIES) $(EXTRA_test_oldstyle_DEPENDENCIES)
+ @rm -f test-oldstyle$(EXEEXT)
+ $(AM_V_CCLD)$(test_oldstyle_LINK) $(test_oldstyle_OBJECTS) $(test_oldstyle_LDADD) $(LIBS)
+
+test-perl$(EXEEXT): $(test_perl_OBJECTS) $(test_perl_DEPENDENCIES) $(EXTRA_test_perl_DEPENDENCIES)
+ @rm -f test-perl$(EXEEXT)
+ $(AM_V_CCLD)$(test_perl_LINK) $(test_perl_OBJECTS) $(test_perl_LDADD) $(LIBS)
+
+test-python$(EXEEXT): $(test_python_OBJECTS) $(test_python_DEPENDENCIES) $(EXTRA_test_python_DEPENDENCIES)
+ @rm -f test-python$(EXEEXT)
+ $(AM_V_CCLD)$(test_python_LINK) $(test_python_OBJECTS) $(test_python_LDADD) $(LIBS)
+
+test-random$(EXEEXT): $(test_random_OBJECTS) $(test_random_DEPENDENCIES) $(EXTRA_test_random_DEPENDENCIES)
+ @rm -f test-random$(EXEEXT)
+ $(AM_V_CCLD)$(test_random_LINK) $(test_random_OBJECTS) $(test_random_LDADD) $(LIBS)
+
+test-readahead$(EXEEXT): $(test_readahead_OBJECTS) $(test_readahead_DEPENDENCIES) $(EXTRA_test_readahead_DEPENDENCIES)
+ @rm -f test-readahead$(EXEEXT)
+ $(AM_V_CCLD)$(test_readahead_LINK) $(test_readahead_OBJECTS) $(test_readahead_LDADD) $(LIBS)
+
+test-ruby$(EXEEXT): $(test_ruby_OBJECTS) $(test_ruby_DEPENDENCIES) $(EXTRA_test_ruby_DEPENDENCIES)
+ @rm -f test-ruby$(EXEEXT)
+ $(AM_V_CCLD)$(test_ruby_LINK) $(test_ruby_OBJECTS) $(test_ruby_LDADD) $(LIBS)
+
+test-shell$(EXEEXT): $(test_shell_OBJECTS) $(test_shell_DEPENDENCIES) $(EXTRA_test_shell_DEPENDENCIES)
+ @rm -f test-shell$(EXEEXT)
+ $(AM_V_CCLD)$(test_shell_LINK) $(test_shell_OBJECTS) $(test_shell_LDADD) $(LIBS)
+
+test-socket-activation$(EXEEXT): $(test_socket_activation_OBJECTS) $(test_socket_activation_DEPENDENCIES) $(EXTRA_test_socket_activation_DEPENDENCIES)
+ @rm -f test-socket-activation$(EXEEXT)
+ $(AM_V_CCLD)$(test_socket_activation_LINK) $(test_socket_activation_OBJECTS) $(test_socket_activation_LDADD) $(LIBS)
+
+test-split$(EXEEXT): $(test_split_OBJECTS) $(test_split_DEPENDENCIES) $(EXTRA_test_split_DEPENDENCIES)
+ @rm -f test-split$(EXEEXT)
+ $(AM_V_CCLD)$(test_split_LINK) $(test_split_OBJECTS) $(test_split_LDADD) $(LIBS)
+
+test-streaming$(EXEEXT): $(test_streaming_OBJECTS) $(test_streaming_DEPENDENCIES) $(EXTRA_test_streaming_DEPENDENCIES)
+ @rm -f test-streaming$(EXEEXT)
+ $(AM_V_CCLD)$(test_streaming_LINK) $(test_streaming_OBJECTS) $(test_streaming_LDADD) $(LIBS)
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+ -rm -f ./$(DEPDIR)/test_xz_curl-web-server.Po
+ -rm -f Makefile
+maintainer-clean-am: distclean-am maintainer-clean-generic
+
+mostlyclean: mostlyclean-am
+
+mostlyclean-am: mostlyclean-compile mostlyclean-generic \
+ mostlyclean-libtool
+
+pdf: pdf-am
+
+pdf-am:
+
+ps: ps-am
+
+ps-am:
+
+uninstall-am:
+
+.MAKE: check-am install-am install-strip
+
+.PHONY: CTAGS GTAGS TAGS all all-am am--depfiles check check-TESTS \
+ check-am clean clean-checkLTLIBRARIES clean-checkPROGRAMS \
+ clean-generic clean-libtool clean-noinstLTLIBRARIES \
+ cscopelist-am ctags ctags-am distclean distclean-compile \
+ distclean-generic distclean-libtool distclean-local \
+ distclean-tags distdir dvi dvi-am html html-am info info-am \
+ install install-am install-data install-data-am install-dvi \
+ install-dvi-am install-exec install-exec-am install-html \
+ install-html-am install-info install-info-am install-man \
+ install-pdf install-pdf-am install-ps install-ps-am \
+ install-strip installcheck installcheck-am installdirs \
+ maintainer-clean maintainer-clean-generic mostlyclean \
+ mostlyclean-compile mostlyclean-generic mostlyclean-libtool \
+ pdf pdf-am ps ps-am recheck tags tags-am uninstall \
+ uninstall-am
+
+.PRECIOUS: Makefile
+
+
+# Use 'make check' to run the ordinary tests. To run all the tests
+# under valgrind, use the following rule:
+check-valgrind:
+ NBDKIT_VALGRIND=1 $(MAKE) check
+
+# To run only tests which require root, use:
+check-root:
+ $(MAKE) check TESTS="test-file-block"
+
+# Run a basic check against a real copy of VDDK. You must set
+# vddkdir to point to the library location, eg:
+#
+# make check-vddk vddkdir=vmware-vix-disklib-distrib
+check-vddk:
+ $(MAKE) check TESTS=test-vddk-real.sh
+@CAN_TEST_ANSI_C_TRUE@test-ansi-c.sh: test-ansi-c-plugin.la
+@HAVE_CXX_TRUE@test-cxx.sh: test-cxx-plugin.la test-cxx-filter.la
+pki/.stamp: $(srcdir)/make-pki.sh
+ SRCDIR=$(srcdir) $(srcdir)/make-pki.sh
+keys.psk: $(srcdir)/make-psk.sh
+ SRCDIR=$(srcdir) $(srcdir)/make-psk.sh
+distclean-local: distclean-local-tls
+distclean-local-tls:
+ rm -rf pki
+@HAVE_PLUGINS_TRUE@file-data: generate-file-data.sh
+@HAVE_PLUGINS_TRUE@ $(srcdir)/generate-file-data.sh $@
+
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@disk:
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ rm -f $@ $@-t
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ guestfish -N $@-t=fs:ext4:100M -m /dev/sda1 \
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ write /hello.txt "hello,world"
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ mv $@-t $@
+
+@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ext2.img: disk
+@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ rm -f $@ $@-t
+@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ guestfish \
+@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ sparse $@-t 2G : \
+@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ run : \
+@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ mkfs ext4 /dev/sda : \
+@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ mount /dev/sda / : \
+@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ mkdir /disks : \
+@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ upload $< /disks/disk.img
+@HAVE_EXT2_TRUE@@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@ mv $@-t $@
+
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_ZLIB_TRUE@disk.gz: disk
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_ZLIB_TRUE@ rm -f $@
+@HAVE_GUESTFISH_TRUE@@HAVE_PLUGINS_TRUE@@HAVE_ZLIB_TRUE@ gzip -9 -c disk > $@
+@HAVE_PLUGINS_TRUE@split1: file-data
+@HAVE_PLUGINS_TRUE@ rm -f $@ $@-t
+@HAVE_PLUGINS_TRUE@ dd if=$< of=$@-t bs=1 count=100
+@HAVE_PLUGINS_TRUE@ mv $@-t $@
+@HAVE_PLUGINS_TRUE@split2: file-data
+@HAVE_PLUGINS_TRUE@ rm -f $@ $@-t
+@HAVE_PLUGINS_TRUE@ dd if=$< of=$@-t bs=1 count=100 skip=100
+@HAVE_PLUGINS_TRUE@ mv $@-t $@
+@HAVE_PLUGINS_TRUE@split3: file-data
+@HAVE_PLUGINS_TRUE@ rm -f $@ $@-t
+@HAVE_PLUGINS_TRUE@ dd if=$< of=$@-t bs=1 skip=200
+@HAVE_PLUGINS_TRUE@ mv $@-t $@
+
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ssh/sshd_config: ssh/sshd_config.in Makefile
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ rm -f $@ $@-t
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ $(SED) \
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ -e 's,__abs_builddir__,$(abs_builddir),g' \
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ -e 's,__RANDOM_PORT__,$(SSH_RANDOM_PORT),g' \
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ < $< > $@-t
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ mv $@-t $@
+
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ssh/ssh_host_rsa_key ssh/ssh_host_rsa_key.pub: stamp-ssh-host-key
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@stamp-ssh-host-key:
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ rm -f $@
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ rm -f ssh/ssh_host_rsa_key
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ rm -f ssh/ssh_host_rsa_key.pub
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh-keygen -t rsa -f ssh/ssh_host_rsa_key -N ''
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ touch $@
+
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ssh/authorized_keys: ssh/id_rsa.pub
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ rm -f $@ $@-t
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ cp $< $@-t
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ mv $@-t $@
+
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ssh/id_rsa ssh/id_rsa.pub: stamp-ssh-user-key
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@stamp-ssh-user-key:
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ rm -f $@
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ rm -f ssh/id_rsa
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ rm -f ssh/id_rsa.pub
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ ssh-keygen -t rsa -f ssh/id_rsa -N ''
+@HAVE_PLUGINS_TRUE@@HAVE_SSH_TRUE@ touch $@
+@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@test-ocaml-plugin.so: test_ocaml_plugin.cmx ../plugins/ocaml/libnbdkitocaml.la ../plugins/ocaml/NBDKit.cmi ../plugins/ocaml/NBDKit.cmx
+@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@ $(OCAMLOPT) $(OCAMLOPTFLAGS) -I ../plugins/ocaml \
+@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@ -output-obj -runtime-variant _pic -o $@ \
+@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@ NBDKit.cmx $< \
+@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@ -cclib -L../plugins/ocaml/.libs -cclib -lnbdkitocaml
+@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@test_ocaml_plugin.cmx: test_ocaml_plugin.ml ../plugins/ocaml/NBDKit.cmi
+@HAVE_OCAML_TRUE@@HAVE_PLUGINS_TRUE@ $(OCAMLOPT) $(OCAMLOPTFLAGS) -I ../plugins/ocaml -c $< -o $@
+
+@HAVE_PLUGINS_TRUE@test-shell.img:
+@HAVE_PLUGINS_TRUE@ truncate -s 1048576 $@
+
+@HAVE_PLUGINS_TRUE@offset-data: generate-offset-data.sh
+@HAVE_PLUGINS_TRUE@ $(srcdir)/generate-offset-data.sh $@
+
+@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@disk.xz: disk
+@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@ rm -f $@
+# We choose a very small block size here only for testing. Normally
+# you should choose a 16M block size.
+@HAVE_GUESTFISH_TRUE@@HAVE_LIBLZMA_TRUE@@HAVE_PLUGINS_TRUE@ xz --best --block-size=32768 -c disk > $@
+
+# Tell versions [3.59,3.63) of GNU make to not export all variables.
+# Otherwise a system limit (for SysV at least) may be exceeded.
+.NOEXPORT:
--- /dev/null
+The real tests use libguestfs as a convenient way to control the qemu
+NBD client.
+
+To test a plugin using libguestfs:
+
+ - #include <test.h>
+
+ - Call:
+
+ test_start_nbdkit ("plugin", <plugin args ...>, NULL)
+
+ at the beginning. This starts the nbdkit server.
+
+ - Open a libguestfs handle, and configure the NBD client using:
+
+ guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+
+ 'server' is a global that is initialized by 'test_start_nbdkit' and
+ points to the nbdkit server socket.
+
+ - Perform tests via libguestfs using the libguestfs device "/dev/sda",
+ which corresponds to the NBD drive exposed by the plugin.
+
+ - Close the handle and exit. An 'atexit' handler installed by
+ 'test_start_nbdkit' cleans up the server automatically.
+
+For an example, see 'test-file.c'.
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* This file pretends to be libvixDiskLib.so.6.
+ *
+ * However it only implements --dump-plugin support so our stubs don't
+ * need to do anything.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+
+#include "vddk-structs.h"
+
+VixError
+VixDiskLib_InitEx (uint32_t major, uint32_t minor,
+ VixDiskLibGenericLogFunc *log_function,
+ VixDiskLibGenericLogFunc *warn_function,
+ VixDiskLibGenericLogFunc *panic_function,
+ const char *lib_dir, const char *config_file)
+{
+ /* Do nothing, only exit with no error. */
+ return VIX_OK;
+}
+
+void
+VixDiskLib_Exit (void)
+{
+ /* Do nothing. */
+}
+
+#define STUB(fn) void fn (void) { abort (); }
+STUB (VixDiskLib_GetErrorText)
+STUB (VixDiskLib_FreeErrorText)
+STUB (VixDiskLib_ConnectEx)
+STUB (VixDiskLib_Open)
+STUB (VixDiskLib_GetTransportMode)
+STUB (VixDiskLib_Close)
+STUB (VixDiskLib_Disconnect)
+STUB (VixDiskLib_GetInfo)
+STUB (VixDiskLib_FreeInfo)
+STUB (VixDiskLib_Read)
+STUB (VixDiskLib_Write)
+STUB (VixDiskLib_FreeConnectParams)
--- /dev/null
+# nbdkit
+# Common functions used by the tests.
+# @configure_input@
+# Copyright (C) 2017-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# cleanup_fn f [args]
+#
+# A generic trap handling function. This runs the function or command
+# f plus optional args when the script exits for any reason.
+declare -a _cleanup_hook
+cleanup_fn ()
+{
+ _cleanup_hook[${#_cleanup_hook[@]}]="$@"
+}
+
+_run_cleanup_hooks ()
+{
+ status=$?
+ set +e
+ trap '' INT QUIT TERM EXIT ERR
+ echo $0: run cleanup hooks: exit code $status
+
+ for (( i = 0; i < ${#_cleanup_hook[@]}; ++i )); do
+ ${_cleanup_hook[i]}
+ done
+
+ exit $status
+}
+trap _run_cleanup_hooks INT QUIT TERM EXIT ERR
+
+# requires program [args]
+#
+# Check that ‘program [args]’ works. If not, skip the test.
+# For example to check that qemu-img is available, do:
+#
+# requires qemu-img --version
+requires ()
+{
+ ( "$@" ) </dev/null >/dev/null 2>&1 || {
+ echo "$0: ‘$*’ failed with error code $?"
+ echo "$0: test prerequisite is missing or not working"
+ exit 77
+ }
+}
+
+# start_nbdkit -P pidfile args...
+#
+# Run nbdkit with args and wait for it to start up. If it fails to
+# start up, exit with an error message. Also a cleanup handler is
+# installed automatically which kills nbdkit on exit.
+start_nbdkit ()
+{
+ # -P <pidfile> must be the first two parameters.
+ if [ "$1" != "-P" ]; then
+ echo "$0: start_nbdkit: -P <pidfile> option must be first"
+ exit 1
+ fi
+ pidfile="$2"
+
+ # Run nbdkit.
+ nbdkit -v "$@"
+
+ # Wait for the pidfile to appear.
+ for i in {1..60}; do
+ if test -f "$pidfile"; then
+ break
+ fi
+ sleep 1
+ done
+ if ! test -f "$pidfile"; then
+ echo "$0: start_nbdkit: PID file $pidfile was not created"
+ exit 1
+ fi
+
+ # Kill nbdkit on exit.
+ cleanup_fn kill "$(cat "$pidfile")"
+}
+
+# foreach_plugin f [args]
+#
+# For each plugin that was built, run the function or command f with
+# the plugin name as the first argument, optionally followed by the
+# remaining args.
+foreach_plugin ()
+{
+ f="$1"
+ shift
+
+ for p in @plugins@; do
+ # Was the plugin built?
+ d="@top_builddir@/plugins/$p"
+ if [ -f "$d/.libs/nbdkit-$p-plugin.so" ] ||
+ [ -f "$d/nbdkit-$p-plugin" ]; then
+ # Yes so run the test.
+ "$f" "$p" "$@"
+ fi
+ done
+}
+
+# pick_unused_port
+#
+# Picks and returns an "unused" port, setting the global variable
+# $port.
+#
+# This is inherently racy so we only use it where it's absolutely
+# necessary (eg. testing TLS because qemu cannot do TLS over a Unix
+# domain socket).
+pick_unused_port ()
+{
+ requires ss --version
+
+ # Start at a random port to make it less likely that two parallel
+ # tests will conflict.
+ port=$(( 50000 + (RANDOM%15000) ))
+ while ss -ltn | grep -sqE ":$port\b"; do
+ ((port++))
+ if [ $port -eq 65000 ]; then port=50000; fi
+ done
+ echo picked unused port $port
+}
--- /dev/null
+#!/usr/bin/env bash
+# Copyright (C) 2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+set -e
+
+rm -f $1-t $1
+
+for f in {1..512}; do
+ echo -ne '\x01\x02\x03\x04\x05\x06\x07\x08'
+done > $1-t
+
+mv $1-t $1
--- /dev/null
+#!/usr/bin/env bash
+# Copyright (C) 2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+set -e
+
+rm -f $1-t $1
+
+for f in {1..1048576}; do
+ echo -ne '\x55\xAA\x55\xAA\x55\xAA\x55\xAA\x55\xAA'
+done > $1-t
+
+mv $1-t $1
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2017 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+set -e
+
+# This creates the PKI files for the TLS tests. However if certtool
+# doesn't exist, just create an empty directory instead.
+
+if [ -z "$SRCDIR" ] || [ ! -f "$SRCDIR/test-tls.sh" ]; then
+ echo "$0: script is being run from the wrong directory."
+ echo "Don't try to run this script by hand."
+ exit 1
+fi
+
+rm -rf pki pki-t
+
+mkdir pki-t
+
+if ! certtool --help >/dev/null 2>&1; then
+ echo "$0: certtool not found, TLS tests will be skipped."
+ touch pki-t/.stamp
+ mv pki-t pki
+ exit 0
+fi
+
+# Create the CA.
+certtool --generate-privkey > pki-t/ca-key.pem
+chmod 0600 pki-t/ca-key.pem
+
+cat > pki-t/ca.info <<EOF
+cn = Test
+ca
+cert_signing_key
+EOF
+certtool --generate-self-signed \
+ --load-privkey pki-t/ca-key.pem \
+ --template pki-t/ca.info \
+ --outfile pki-t/ca-cert.pem
+
+# Create the server certificate and key.
+certtool --generate-privkey > pki-t/server-key.pem
+chmod 0600 pki-t/server-key.pem
+
+cat > pki-t/server.info <<EOF
+organization = Test
+cn = localhost
+tls_www_server
+encryption_key
+signing_key
+EOF
+certtool --generate-certificate \
+ --load-ca-certificate pki-t/ca-cert.pem \
+ --load-ca-privkey pki-t/ca-key.pem \
+ --load-privkey pki-t/server-key.pem \
+ --template pki-t/server.info \
+ --outfile pki-t/server-cert.pem
+
+# Create a client certificate and key.
+certtool --generate-privkey > pki-t/client-key.pem
+chmod 0600 pki-t/client-key.pem
+
+cat > pki-t/client.info <<EOF
+country = US
+state = New York
+locality = New York
+organization = Test
+cn = localhost
+tls_www_client
+encryption_key
+signing_key
+EOF
+certtool --generate-certificate \
+ --load-ca-certificate pki-t/ca-cert.pem \
+ --load-ca-privkey pki-t/ca-key.pem \
+ --load-privkey pki-t/client-key.pem \
+ --template pki-t/client.info \
+ --outfile pki-t/client-cert.pem
+
+# Finish off.
+touch pki-t/.stamp
+mv pki-t pki
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+set -e
+
+# This creates the PSK keys for the TLS-PSK tests. However if pkstool
+# doesn't exist, just create an empty directory instead.
+
+if [ -z "$SRCDIR" ] || [ ! -f "$SRCDIR/test-tls-psk.sh" ]; then
+ echo "$0: script is being run from the wrong directory."
+ echo "Don't try to run this script by hand."
+ exit 1
+fi
+
+rm -f keys.psk
+
+if ! psktool --help >/dev/null 2>&1; then
+ echo "$0: psktool not found, TLS-PSK tests will be skipped."
+ touch keys.psk
+ exit 0
+fi
+
+# Create the keys file.
+psktool -u qemu -p keys.psk
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# A dummy python plugin which just raises an exception in config_complete.
+
+test = "simple"
+
+def config(k, v):
+ global test
+ if k == "test":
+ test = v
+ else:
+ raise RuntimeError("unknown config parameter")
+
+def raise_error2():
+ raise RuntimeError("this is the test string")
+
+def raise_error1():
+ raise_error2()
+
+def config_complete():
+ if test == "simple":
+ raise RuntimeError("this is the test string")
+ elif test == "traceback":
+ raise_error1()
+ else:
+ raise RuntimeError("unknown test")
+
+def open(readonly):
+ return 1
+
+
+def get_size(h):
+ return 0
+
+
+def pread(h, count, offset):
+ return ""
--- /dev/null
+#!../nbdkit perl
+
+use strict;
+
+my $disk = "\0" x (1024*1024);
+
+sub open
+{
+ my $readonly = shift;
+ my $h = { readonly => $readonly };
+ return $h;
+}
+
+sub close
+{
+ my $h = shift;
+}
+
+sub get_size
+{
+ my $h = shift;
+ return length ($disk);
+}
+
+sub pread
+{
+ my $h = shift;
+ my $count = shift;
+ my $offset = shift;
+ return substr ($disk, $offset, $count);
+}
--- /dev/null
+#!../nbdkit python
+
+disk = bytearray(1024 * 1024)
+
+
+def open(readonly):
+ print("open: readonly=%d" % readonly)
+ return 1
+
+
+def get_size(h):
+ global disk
+ return len(disk)
+
+
+def pread(h, count, offset):
+ global disk
+ return disk[offset:offset+count]
--- /dev/null
+#!../nbdkit ruby
+
+include Nbdkit
+
+$disk = "\0" * (1024 * 1024)
+
+def open(readonly)
+ h = {}
+ return h
+end
+
+def get_size(h)
+ return $disk.bytesize
+end
+
+def pread(h, count, offset)
+ return $disk.byteslice(offset, count)
+end
--- /dev/null
+# nbdkit sshd_config used by test-ssh.sh.
+# Copyright (C) 2014-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Minimal sshd_config used by test-ssh.sh when it runs
+# a captive sshd. This file is processed by $(SED).
+
+# Choose a random high port number.
+Port __RANDOM_PORT__
+
+# Only allow connections from loopback.
+ListenAddress [::1]
+ListenAddress 127.0.0.1
+
+# Privilege separation breaks non-root usage of sshd.
+UsePrivilegeSeparation no
+
+# Use local files instead of inaccessible global configuration.
+PidFile __abs_builddir__/ssh/sshd.pid
+HostKey __abs_builddir__/ssh/ssh_host_rsa_key
+
+AuthorizedKeysFile __abs_builddir__/ssh/authorized_keys
+
+# Don't check file permissions.
+StrictModes no
+
+# Allow the environment to be set in the authorized_keys file above.
+PermitUserEnvironment yes
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <nbdkit-plugin.h>
+
+/* This looks like a 100MB disk with one empty partition. */
+static unsigned char bootsector[512] = {
+ 0xfa, 0xb8, 0x00, 0x10, 0x8e, 0xd0, 0xbc, 0x00,
+ 0xb0, 0xb8, 0x00, 0x00, 0x8e, 0xd8, 0x8e, 0xc0,
+ 0xfb, 0xbe, 0x00, 0x7c, 0xbf, 0x00, 0x06, 0xb9,
+ 0x00, 0x02, 0xf3, 0xa4, 0xea, 0x21, 0x06, 0x00,
+ 0x00, 0xbe, 0xbe, 0x07, 0x38, 0x04, 0x75, 0x0b,
+ 0x83, 0xc6, 0x10, 0x81, 0xfe, 0xfe, 0x07, 0x75,
+ 0xf3, 0xeb, 0x16, 0xb4, 0x02, 0xb0, 0x01, 0xbb,
+ 0x00, 0x7c, 0xb2, 0x80, 0x8a, 0x74, 0x01, 0x8b,
+ 0x4c, 0x02, 0xcd, 0x13, 0xea, 0x00, 0x7c, 0x00,
+ 0x00, 0xeb, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0xe1, 0x5b, 0x02, 0x00, 0x00, 0x00, 0x00, 0x02,
+ 0x03, 0x00, 0x83, 0xbc, 0x31, 0x0c, 0x80, 0x00,
+ 0x00, 0x00, 0x01, 0x1f, 0x03, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xaa
+};
+static unsigned char data[104857600];
+
+static void
+ansi_c_load (void)
+{
+ memcpy (data, bootsector, sizeof bootsector);
+}
+
+static void *
+ansi_c_open (int readonly)
+{
+ return NBDKIT_HANDLE_NOT_NEEDED;
+}
+
+static int64_t
+ansi_c_get_size (void *handle)
+{
+ return (int64_t) sizeof (data);
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+
+static int
+ansi_c_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ memcpy (buf, data+offset, count);
+ return 0;
+}
+
+/* Strictly speaking (and we're compiling with -pedantic, so we _are_
+ * "strictly speaking"), ANSI C did not allow struct initialization
+ * using labels. However it was a common extension to C compilers of
+ * the period.
+ *
+ * Therefore we rely here on the order of fields in struct
+ * nbdkit_plugin. But that's OK because of nbdkit's stable ABI
+ * guarantee.
+ *
+ * If you are really writing an nbdkit plugin which can only use C90
+ * then you are advised to find the extension to your compiler which
+ * allows you to initialize named fields.
+ */
+static struct nbdkit_plugin plugin = {
+ 0, 0, 0, /* _struct_size, _api_version, _thread_model */
+ "ansic",
+ NULL, /* longname */
+ "1.0",
+ NULL, /* description */
+ ansi_c_load,
+ NULL, /* unload */
+ NULL, NULL, NULL, /* config, config_complete, config_help */
+ ansi_c_open,
+ NULL, /* close */
+ ansi_c_get_size,
+ NULL, NULL, NULL, NULL, /* can_write, can_flush, is_rotational, can_trim */
+ ansi_c_pread
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2017-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+
+# We only really care that the plugin compiled, so we don't
+# need to run it properly.
+libs=./.libs
+nbdkit $libs/test-ansi-c-plugin.so --version
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+
+sock1=`mktemp -u`
+sock2=`mktemp -u`
+files="blocksize1.img blocksize1.log $sock1 blocksize1.pid
+ blocksize2.img blocksize2.log $sock2 blocksize2.pid"
+rm -f $files
+
+# Prep images, and check that qemu-io understands the actions we plan on doing.
+# TODO: Until we implement NBD_INFO_BLOCK_SIZE, qemu-io does its own
+# read-modify-write at 512-byte alignment, while we'd like to ultimately test
+# 1-byte accesses
+truncate -s 10M blocksize1.img
+if ! qemu-io -f raw -c 'r 0 1' -c 'w -z 1000 2000' \
+ -c 'w -P 0 1M 2M' -c 'discard 3M 4M' blocksize1.img; then
+ echo "$0: missing or broken qemu-io"
+ rm blocksize1.img
+ exit 77
+fi
+truncate -s 10M blocksize2.img
+
+# For easier debugging, dump the final log files before removing them
+# on exit.
+cleanup ()
+{
+ echo "Log 1 file contents:"
+ cat blocksize1.log || :
+ echo "Log 2 file contents:"
+ cat blocksize2.log || :
+ rm -f $files
+}
+cleanup_fn cleanup
+
+# Run two parallel nbdkit; to compare the logs and see what changes.
+start_nbdkit -P blocksize1.pid -U $sock1 \
+ --filter=log file logfile=blocksize1.log blocksize1.img
+start_nbdkit -P blocksize2.pid -U $sock2 --filter=blocksize \
+ --filter=log file logfile=blocksize2.log blocksize2.img \
+ minblock=1024 maxdata=512k maxlen=1M
+
+# Test behavior on short accesses.
+qemu-io -f raw -c 'r 1 1' -c 'w 10001 1' -c 'w -z 20001 1' \
+ -c 'discard 30001 1' "nbd+unix://?socket=$sock1"
+qemu-io -f raw -c 'r 1 1' -c 'w 10001 1' -c 'w -z 20001 1' \
+ -c 'discard 30001 1' "nbd+unix://?socket=$sock2"
+
+# Read should round up (qemu-io may round to 512, but we must round to 1024
+grep 'connection=1 Read .* count=0x\(1\|200\) ' blocksize1.log ||
+ { echo "qemu-io can't pass 1-byte reads"; exit 77; }
+grep 'connection=1 Read .* offset=0x0 count=0x400 ' blocksize2.log
+# Write should become read-modify-write
+grep 'connection=1 Write .* count=0x\(1\|200\) ' blocksize1.log ||
+ { echo "qemu-io can't pass 1-byte writes"; exit 77; }
+grep 'connection=1 Read .* offset=0x2400 count=0x400 ' blocksize2.log
+grep 'connection=1 Write .* offset=0x2400 count=0x400 ' blocksize2.log
+# Zero should become read-modify-write
+if grep 'connection=1 Zero' blocksize2.log; then
+ echo "filter should have converted short zero to write"
+ exit 1
+fi
+grep 'connection=1 Read .* offset=0x4c00 count=0x400 ' blocksize2.log
+grep 'connection=1 Write .* offset=0x4c00 count=0x400 ' blocksize2.log
+# Trim should be discarded
+if grep 'connection=1 Trim' blocksize2.log; then
+ echo "filter should have dropped too-small trim"
+ exit 1
+fi
+
+# Test behavior on overlarge accesses.
+qemu-io -f raw -c 'w -P 11 1048575 4094305' -c 'w -z 1050000 1100000' \
+ -c 'r -P 0 1050000 1100000' -c 'r -P 11 3000000 1048577' \
+ -c 'discard 7340031 2097153' "nbd+unix://?socket=$sock1"
+qemu-io -f raw -c 'w -P 11 1048575 4094305' -c 'w -z 1050000 1100000' \
+ -c 'r -P 0 1050000 1100000' -c 'r -P 11 3000000 1048577' \
+ -c 'discard 7340031 2097153' "nbd+unix://?socket=$sock2"
+
+# Reads and writes should have been split.
+test "$(grep -c '\(Read\|Write\) .*count=0x80000 ' blocksize2.log)" -ge 10
+test "$(grep -c '\(Read\|Write\) .*count=0x[0-9a-f]\{6\} ' blocksize2.log)" = 0
+# Zero and trim should be split, but at different boundary
+grep 'Zero .*count=0x100000 ' blocksize2.log
+test "$(grep -c 'connection=2 Zero' blocksize2.log)" = 2
+if grep Trim blocksize1.log; then
+ test "$(grep -c 'connection=2 Trim .*count=0x100000 ' blocksize2.log)" = 2
+fi
+
+# Final sanity checks.
+if grep 'offset=0x[0-9a-f]*\([1235679abdef]00\|[0-9a-f]\(.[^0]\|[^0].\)\) ' \
+ blocksize2.log; then
+ echo "filter didn't align offset to 1024";
+ exit 1;
+fi
+if grep 'count=0x[0-9a-f]*\([1235679abdef]00\|[0-9a-f]\(.[^0]\|[^0].\)\) ' \
+ blocksize2.log; then
+ echo"filter didn't align count to 512";
+ exit 1;
+fi
+diff -u blocksize1.img blocksize2.img
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+# Check that this is a Linux-like system supporting /proc/$pid/fd.
+requires test -d /proc/self/fd
+requires qemu-io --version
+# Need the stat command from coreutils.
+requires stat --version
+
+sock=`mktemp -u`
+d=cache-max-size.d
+rm -rf $d
+mkdir -p $d
+cleanup_fn rm -rf $d
+cleanup_fn rm -f $sock
+
+# Create a cache directory.
+mkdir $d/cache
+TMPDIR=$d/cache
+export TMPDIR
+
+# Create an empty base image.
+truncate -s 1G $d/cache-max-size.img
+
+# Run nbdkit with the caching filter and a low size limit to ensure
+# that the reclaim code is exercised.
+start_nbdkit -P $d/cache-max-size.pid -U $sock \
+ --filter=cache \
+ file $d/cache-max-size.img \
+ cache-max-size=10M cache-on-read=true
+
+# Write > 10M to the plugin.
+qemu-io -f raw "nbd+unix://?socket=$sock" \
+ -c "w -P 0 0 10M" \
+ -c "w -P 0 20M 10M" \
+ -c "r 20M 10M" \
+ -c "r 30M 10M" \
+ -c "w -P 0 40M 10M"
+
+# We can't use ‘du’ on the cache directory because the cache file is
+# deleted by the filter, and so is only accessible via /proc/$pid/fd.
+# Get the /proc link to the cache file, and the size of it in bytes.
+fddir="/proc/$( cat $d/cache-max-size.pid )/fd"
+ls -l $fddir ||:
+fd="$fddir/$( ls -l $fddir | grep $TMPDIR | head -1 | awk '{print $9}' )"
+stat -L $fd
+size=$(( $(stat -L -c '%b * %B' $fd) ))
+
+if [ "$size" -gt $(( 11 * 1024 * 1024 )) ]; then
+ echo "$0: cache size is larger than 10M (actual size: $size bytes)"
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# XXX Suggestion to improve this test: Use the delay filter below the
+# cache filter, and time reads to prove that the second read is faster
+# because it isn't going through the delay filter and plugin.
+
+source ./functions.sh
+set -e
+set -x
+
+sock=`mktemp -u`
+files="cache-on-read.img $sock cache-on-read.pid"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Create an empty base image.
+truncate -s 1G cache-on-read.img
+
+# Run nbdkit with the caching filter and cache-on-read set.
+start_nbdkit -P cache-on-read.pid -U $sock \
+ --filter=cache \
+ file cache-on-read.img \
+ cache-on-read=true
+
+# Open the overlay and perform some operations.
+guestfish --format=raw -a "nbd://?socket=$sock" <<'EOF'
+ run
+ part-disk /dev/sda gpt
+ mkfs ext4 /dev/sda1
+ mount /dev/sda1 /
+ fill-dir / 10000
+ fill-pattern "abcde" 5M /large
+ write /hello "hello, world"
+EOF
+
+# Check the last files we created exist.
+guestfish --ro -a cache-on-read.img -m /dev/sda1 <<'EOF'
+ cat /hello
+ cat /large | cat >/dev/null
+EOF
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+sock=`mktemp -u`
+files="cache.img $sock cache.pid"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Create an empty base image.
+truncate -s 1G cache.img
+
+# Run nbdkit with the caching filter.
+start_nbdkit -P cache.pid -U $sock --filter=cache file cache.img
+
+# Open the overlay and perform some operations.
+guestfish --format=raw -a "nbd://?socket=$sock" <<'EOF'
+ run
+ part-disk /dev/sda gpt
+ mkfs ext4 /dev/sda1
+ mount /dev/sda1 /
+ fill-dir / 10000
+ fill-pattern "abcde" 5M /large
+ write /hello "hello, world"
+EOF
+
+# Check the last files we created exist.
+guestfish --ro -a cache.img -m /dev/sda1 <<'EOF'
+ cat /hello
+ cat /large | cat >/dev/null
+EOF
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2014-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+# Test nbdkit --run (captive nbdkit) option.
+
+sock=`mktemp -u`
+files="$sock captive.out"
+rm -f $files
+cleanup_fn rm -f $files
+
+nbdkit -U $sock example1 --run '
+ sleep 5; echo nbd=$nbd; echo port=$port; echo socket=$unixsocket
+ ' > captive.out
+
+# Check the output.
+if [ "$(cat captive.out)" != "nbd=nbd:unix:$sock
+port=
+socket=$sock" ]; then
+ echo "$0: unexpected output"
+ cat captive.out
+ exit 1
+fi
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ int64_t size;
+ char **parts;
+ size_t i;
+
+ if (test_start_nbdkit ("example1", NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_READONLY, 1,
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* The example1 plugin makes a static virtual disk which is 100 MB
+ * in size and has one empty partition. Check this.
+ */
+ size = guestfs_blockdev_getsize64 (g, "/dev/sda");
+ if (size == -1)
+ exit (EXIT_FAILURE);
+ if (size != 104857600) {
+ fprintf (stderr,
+ "%s FAILED: incorrect disk size (actual: %" PRIi64
+ ", expected: 104857600)\n", program_name, size);
+ exit (EXIT_FAILURE);
+ }
+
+ parts = guestfs_list_partitions (g);
+ if (!parts)
+ exit (EXIT_FAILURE);
+ if (parts[0] == NULL || parts[1] != NULL ||
+ strcmp (parts[0], "/dev/sda1") != 0) {
+ fprintf (stderr,
+ "%s FAILED: incorrect result from guestfs_list_partitions\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ for (i = 0; parts[i] != NULL; ++i)
+ free (parts[i]);
+ free (parts);
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+sock=`mktemp -u`
+files="cow-base.img cow-diff.qcow2 $sock cow.pid"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Create a base image which is partitioned with an empty filesystem.
+guestfish -N cow-base.img=fs exit
+lastmod="$(stat -c "%y" cow-base.img)"
+
+# Run nbdkit with a COW overlay.
+start_nbdkit -P cow.pid -U $sock --filter=cow file cow-base.img
+
+# Write some data into the overlay.
+guestfish --format=raw -a "nbd://?socket=$sock" -m /dev/sda1 <<EOF
+ fill-dir / 10000
+ fill-pattern "abcde" 5M /large
+ write /hello "hello, world"
+EOF
+
+# The original file must not be modified.
+currmod="$(stat -c "%y" cow-base.img)"
+
+if [ "$lastmod" != "$currmod" ]; then
+ echo "$0: FAILED last modified time of base file changed"
+ exit 1
+fi
+
+# If we have qemu-img, try the hairy rebase operation documented
+# in the nbdkit-cow-filter manual.
+if qemu-img --version >/dev/null 2>&1; then
+ qemu-img create -f qcow2 -b nbd:unix:$sock cow-diff.qcow2
+ time qemu-img rebase -b cow-base.img cow-diff.qcow2
+ qemu-img info cow-diff.qcow2
+
+ # This checks the file we created exists.
+ guestfish --ro -a cow-diff.qcow2 -m /dev/sda1 cat /hello
+fi
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "web-server.h"
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ const char *sockpath;
+ size_t n;
+ guestfs_h *g;
+ int r;
+ char *data;
+
+#ifndef HAVE_CURLOPT_UNIX_SOCKET_PATH
+ fprintf (stderr, "%s: curl does not support CURLOPT_UNIX_SOCKET_PATH\n",
+ program_name);
+ exit (77);
+#endif
+
+ sockpath = web_server ("disk");
+ if (sockpath == NULL) {
+ fprintf (stderr, "%s: could not start web server thread\n", program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ /* Start nbdkit. */
+ n = strlen ("unix-socket-path") + 1 + strlen (sockpath) + 1;
+ char usp_param[n];
+ snprintf (usp_param, n, "%s=%s", "unix-socket-path", sockpath);
+ if (test_start_nbdkit ("curl",
+ "cookie=foo=bar; baz=1;",
+ usp_param, /* unix-socket-path=... */
+ "http://localhost/disk",
+ NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_READONLY, 1,
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* 'disk' contains one partition and a test file called "hello.txt" */
+ if (guestfs_mount_ro (g, "/dev/sda1", "/") == -1)
+ exit (EXIT_FAILURE);
+
+ data = guestfs_cat (g, "/hello.txt");
+ if (!data)
+ exit (EXIT_FAILURE);
+
+ if (strcmp (data, "hello,world") != 0) {
+ fprintf (stderr,
+ "%s FAILED: unexpected content of /hello.txt file "
+ "(actual: %s, expected: \"hello,world\")\n",
+ program_name, data);
+ exit (EXIT_FAILURE);
+ }
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef __cplusplus
+#error "this test should be compiled with a C++ compiler"
+#endif
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <nbdkit-filter.h>
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+/* https://bugzilla.redhat.com/show_bug.cgi?id=1418328#c9 */
+namespace {
+ nbdkit_filter create_filter() {
+ nbdkit_filter filter = nbdkit_filter ();
+ filter.name = "cxxfilter";
+ filter.version = PACKAGE_VERSION;
+ return filter;
+ }
+}
+static struct nbdkit_filter filter = create_filter ();
+
+NBDKIT_REGISTER_FILTER(filter)
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef __cplusplus
+#error "this test should be compiled with a C++ compiler"
+#endif
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <string.h>
+
+#include <nbdkit-plugin.h>
+
+/* This looks like a 100MB disk with one empty partition. */
+static unsigned char bootsector[512] = {
+ 0xfa, 0xb8, 0x00, 0x10, 0x8e, 0xd0, 0xbc, 0x00,
+ 0xb0, 0xb8, 0x00, 0x00, 0x8e, 0xd8, 0x8e, 0xc0,
+ 0xfb, 0xbe, 0x00, 0x7c, 0xbf, 0x00, 0x06, 0xb9,
+ 0x00, 0x02, 0xf3, 0xa4, 0xea, 0x21, 0x06, 0x00,
+ 0x00, 0xbe, 0xbe, 0x07, 0x38, 0x04, 0x75, 0x0b,
+ 0x83, 0xc6, 0x10, 0x81, 0xfe, 0xfe, 0x07, 0x75,
+ 0xf3, 0xeb, 0x16, 0xb4, 0x02, 0xb0, 0x01, 0xbb,
+ 0x00, 0x7c, 0xb2, 0x80, 0x8a, 0x74, 0x01, 0x8b,
+ 0x4c, 0x02, 0xcd, 0x13, 0xea, 0x00, 0x7c, 0x00,
+ 0x00, 0xeb, 0xfe, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0xe1, 0x5b, 0x02, 0x00, 0x00, 0x00, 0x00, 0x02,
+ 0x03, 0x00, 0x83, 0xbc, 0x31, 0x0c, 0x80, 0x00,
+ 0x00, 0x00, 0x01, 0x1f, 0x03, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x00,
+ 0x00, 0x00, 0x00, 0x00, 0x00, 0x00, 0x55, 0xaa
+};
+static unsigned char data[104857600];
+
+static void
+cxx_load (void)
+{
+ memcpy (data, bootsector, sizeof bootsector);
+}
+
+static void *
+cxx_open (int readonly)
+{
+ return NBDKIT_HANDLE_NOT_NEEDED;
+}
+
+static int64_t
+cxx_get_size (void *handle)
+{
+ return (int64_t) sizeof (data);
+}
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_SERIALIZE_ALL_REQUESTS
+
+static int
+cxx_pread (void *handle, void *buf, uint32_t count, uint64_t offset)
+{
+ memcpy (buf, data+offset, count);
+ return 0;
+}
+
+/* https://bugzilla.redhat.com/show_bug.cgi?id=1418328#c9 */
+namespace {
+ nbdkit_plugin create_plugin() {
+ nbdkit_plugin plugin = nbdkit_plugin ();
+ plugin.name = "cxx";
+ plugin.version = PACKAGE_VERSION;
+ plugin.load = cxx_load;
+ plugin.open = cxx_open;
+ plugin.get_size = cxx_get_size;
+ plugin.pread = cxx_pread;
+ return plugin;
+ }
+}
+static struct nbdkit_plugin plugin = create_plugin ();
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2017-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+
+# We only really care that the plugin compiled, so we don't
+# need to run it properly.
+libs=./.libs
+nbdkit --filter=$libs/test-cxx-filter.so $libs/test-cxx-plugin.so --version
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the data plugin creating a 7 EB partitioned disk, and
+# the partition filter on top.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-io --version
+
+sock=`mktemp -u`
+files="data-7E.out data-7E.pid $sock"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Run nbdkit.
+start_nbdkit -P data-7E.pid -U $sock --export= \
+ --filter=partition \
+ data size=7E partition=1 \
+ data="
+ @0x1c0 2 0 0xee 0xfe 0xff 0xff 0x01 0 0 0 0xff 0xff 0xff 0xff
+ @0x1fe 0x55 0xaa
+ @0x200 0x45 0x46 0x49 0x20 0x50 0x41 0x52 0x54
+ 0 0 1 0 0x5c 0 0 0
+ 0x9b 0xe5 0x6a 0xc5 0 0 0 0 1 0 0 0 0 0 0 0
+ 0xff 0xff 0xff 0xff 0xff 0xff 0x37 0 0x22 0 0 0 0 0 0 0
+ 0xde 0xff 0xff 0xff 0xff 0xff 0x37 0
+ 0x72 0xb6 0x9e 0x0c 0x6b 0x76 0xb0 0x4f
+ 0xb3 0x94 0xb2 0xf1 0x61 0xec 0xdd 0x3c 2 0 0 0 0 0 0 0
+ 0x80 0 0 0 0x80 0 0 0 0x79 0x8a 0xd0 0x7e 0 0 0 0
+ @0x400 0xaf 0x3d 0xc6 0x0f 0x83 0x84 0x72 0x47
+ 0x8e 0x79 0x3d 0x69 0xd8 0x47 0x7d 0xe4
+ 0xd5 0x19 0x46 0x95 0xe3 0x82 0xa8 0x4c
+ 0x95 0x82 0x7a 0xbe 0x1c 0xfc 0x62 0x90
+ 0x80 0 0 0 0 0 0 0 0x80 0xff 0xff 0xff 0xff 0xff 0x37 0
+ 0 0 0 0 0 0 0 0 0x70 0 0x31 0 0 0 0 0
+ @0x6fffffffffffbe00
+ 0xaf 0x3d 0xc6 0x0f 0x83 0x84 0x72 0x47
+ 0x8e 0x79 0x3d 0x69 0xd8 0x47 0x7d 0xe4
+ 0xd5 0x19 0x46 0x95 0xe3 0x82 0xa8 0x4c
+ 0x95 0x82 0x7a 0xbe 0x1c 0xfc 0x62 0x90
+ 0x80 0 0 0 0 0 0 0 0x80 0xff 0xff 0xff 0xff 0xff 0x37 0
+ 0 0 0 0 0 0 0 0 0x70 0 0x31 0 0 0 0 0
+ @0x6ffffffffffffe00
+ 0x45 0x46 0x49 0x20 0x50 0x41 0x52 0x54
+ 0 0 1 0 0x5c 0 0 0
+ 0x6c 0x76 0xa1 0xa0 0 0 0 0
+ 0xff 0xff 0xff 0xff 0xff 0xff 0x37 0
+ 1 0 0 0 0 0 0 0 0x22 0 0 0 0 0 0 0
+ 0xde 0xff 0xff 0xff 0xff 0xff 0x37 0
+ 0x72 0xb6 0x9e 0x0c 0x6b 0x76 0xb0 0x4f
+ 0xb3 0x94 0xb2 0xf1 0x61 0xec 0xdd 0x3c
+ 0xdf 0xff 0xff 0xff 0xff 0xff 0x37 0
+ 0x80 0 0 0 0x80 0 0 0 0x79 0x8a 0xd0 0x7e 0 0 0 0
+ "
+
+# Since we're reading the empty first partition, any read returns zeroes.
+qemu-io -r -f raw "nbd+unix://?socket=$sock" \
+ -c 'r -v 498 16' | grep -E '^[[:xdigit:]]+:' > data-7E.out
+if [ "$(cat data-7E.out)" != "000001f2: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................" ]
+then
+ echo "$0: unexpected pattern:"
+ cat data-7E.out
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the data plugin with base64= parameter.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-io --version
+
+# Test if the base64 parameter is supported in this build.
+if ! nbdkit data --dump-plugin | grep -sq "data_base64=yes"; then
+ echo "$0: base64 parameter is not supported in this build"
+ exit 77
+fi
+
+sock=`mktemp -u`
+files="data-base64.out data-base64.pid $sock"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Run nbdkit.
+start_nbdkit -P data-base64.pid -U $sock \
+ data base64=MTIz size=512
+
+qemu-io -r -f raw "nbd+unix://?socket=$sock" \
+ -c 'r -v 0 512' | grep -E '^[[:xdigit:]]+:' > data-base64.out
+if [ "$(cat data-base64.out)" != "00000000: 31 32 33 00 00 00 00 00 00 00 00 00 00 00 00 00 123.............
+00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000000a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000000b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000000c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000000d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000000e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000000f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000001a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000001b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000001c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000001d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000001e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000001f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................" ]
+then
+ echo "$0: unexpected pattern:"
+ cat data-base64.out
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Unfortunately the output of this test depends on the PAGE_SIZE
+# defined in common/sparse/sparse.c and would change (breaking the
+# test) if we ever changed that definition.
+
+source ./functions.sh
+set -e
+set -x
+
+requires jq --version
+requires qemu-img --version
+requires qemu-img map --help
+
+out="test-data-extents.out"
+expected="test-data-extents.expected"
+files="$out $expected"
+rm -f $files
+cleanup_fn rm -f $files
+
+do_test ()
+{
+ # We use jq to normalize the output and convert it to plain text.
+ nbdkit -U - data data="$1" size="$2" \
+ --run 'qemu-img map -f raw --output=json $nbd' |
+ jq -c '.[] | {start:.start, length:.length, data:.data, zero:.zero}' \
+ > $out
+ if ! cmp $out $expected; then
+ echo "$0: output did not match expected data"
+ echo "expected:"
+ cat $expected
+ echo "output:"
+ cat $out
+ exit 1
+ fi
+}
+
+# Completely sparse disk.
+cat > $expected <<'EOF'
+{"start":0,"length":1048576,"data":false,"zero":true}
+EOF
+do_test "" 1M
+
+# Completely allocated disk.
+cat > $expected <<'EOF'
+{"start":0,"length":32768,"data":true,"zero":false}
+EOF
+do_test "1" 32K
+
+# Allocated data at the start of a 1M disk.
+cat > $expected <<'EOF'
+{"start":0,"length":32768,"data":true,"zero":false}
+{"start":32768,"length":1015808,"data":false,"zero":true}
+EOF
+do_test "1" 1M
+
+# Allocated zeroes at the start of the disk. This should create a
+# zero extent (data=true zero=true).
+cat > $expected <<'EOF'
+{"start":0,"length":32768,"data":true,"zero":true}
+{"start":32768,"length":1015808,"data":false,"zero":true}
+EOF
+do_test "0" 1M
+
+# Completely zero disk.
+cat > $expected <<'EOF'
+{"start":0,"length":32768,"data":true,"zero":true}
+EOF
+do_test "0 0 0" 32K
+
+# Allocated data and zero extents in a few places in the middle.
+cat > $expected <<'EOF'
+{"start":0,"length":32768,"data":false,"zero":true}
+{"start":32768,"length":32768,"data":true,"zero":false}
+{"start":65536,"length":32768,"data":true,"zero":true}
+{"start":98304,"length":32768,"data":false,"zero":true}
+{"start":131072,"length":32768,"data":true,"zero":false}
+{"start":163840,"length":98304,"data":false,"zero":true}
+{"start":262144,"length":32768,"data":true,"zero":true}
+{"start":294912,"length":32768,"data":true,"zero":false}
+{"start":327680,"length":720896,"data":false,"zero":true}
+EOF
+do_test "@32768 1 @65536 0 @131072 1 @262144 0 @294912 1" 1M
+
+# This should test coalescing in the extents code.
+cat > $expected <<'EOF'
+{"start":0,"length":32768,"data":false,"zero":true}
+{"start":32768,"length":65536,"data":true,"zero":false}
+{"start":98304,"length":32768,"data":false,"zero":true}
+{"start":131072,"length":65536,"data":true,"zero":true}
+{"start":196608,"length":851968,"data":false,"zero":true}
+EOF
+do_test "@32768 1 @65536 1 @131072 0 @163840 0" 1M
+
+# Zero-length plugin. Unlike nbdkit-zero-plugin, the data plugin
+# advertises extents and so will behave differently.
+cat > $expected <<'EOF'
+{"start":0,"length":0,"data":false,"zero":false}
+EOF
+do_test "" 0
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the data plugin with an inline file.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-io --version
+
+sock=`mktemp -u`
+files="data-file.out data-file.pid $sock data-hello.txt"
+rm -f $files
+cleanup_fn rm -f $files
+
+rm -f data-hello.txt
+for i in {0..1000}; do
+ echo -n "hello " >> data-hello.txt
+done
+
+# Run nbdkit.
+start_nbdkit -P data-file.pid -U $sock \
+ --filter=partition \
+ data partition=1 \
+ size=1M \
+ data="
+ @0x1b8 178 190 207 221 0 0 0 0 2 0 131 32 32 0 1 0 0 0 255 7
+ @0x1fe 85 170
+ @0x200 <data-hello.txt
+ "
+
+# Since we're reading the empty first partition, any read returns zeroes.
+qemu-io -r -f raw "nbd+unix://?socket=$sock" \
+ -c 'r -v 0 900' | grep -E '^[[:xdigit:]]+:' > data-file.out
+if [ "$(cat data-file.out)" != "00000000: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+00000010: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+00000020: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+00000030: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+00000040: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+00000050: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+00000060: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+00000070: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+00000080: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+00000090: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+000000a0: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+000000b0: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+000000c0: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+000000d0: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+000000e0: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+000000f0: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+00000100: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+00000110: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+00000120: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+00000130: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+00000140: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+00000150: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+00000160: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+00000170: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+00000180: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+00000190: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+000001a0: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+000001b0: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+000001c0: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+000001d0: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+000001e0: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+000001f0: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+00000200: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+00000210: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+00000220: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+00000230: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+00000240: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+00000250: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+00000260: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+00000270: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+00000280: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+00000290: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+000002a0: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+000002b0: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+000002c0: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+000002d0: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+000002e0: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+000002f0: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+00000300: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+00000310: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+00000320: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+00000330: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+00000340: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+00000350: 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 llo.hello.hello.
+00000360: 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c hello.hello.hell
+00000370: 6f 20 68 65 6c 6c 6f 20 68 65 6c 6c 6f 20 68 65 o.hello.hello.he
+00000380: 6c 6c 6f 20 llo." ]
+then
+ echo "$0: unexpected pattern:"
+ cat data-file.out
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the data plugin with raw= parameter.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-io --version
+
+sock=`mktemp -u`
+files="data-raw.out data-raw.pid $sock"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Run nbdkit.
+start_nbdkit -P data-raw.pid -U $sock --export "" \
+ data raw=123 size=512
+
+qemu-io -r -f raw "nbd+unix://?socket=$sock" \
+ -c 'r -v 0 512' | grep -E '^[[:xdigit:]]+:' > data-raw.out
+if [ "$(cat data-raw.out)" != "00000000: 31 32 33 00 00 00 00 00 00 00 00 00 00 00 00 00 123.............
+00000010: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000020: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000030: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000040: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000050: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000060: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000070: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000080: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000090: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000000a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000000b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000000c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000000d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000000e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000000f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000100: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000110: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000120: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000130: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000140: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000150: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000160: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000170: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000180: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+00000190: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000001a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000001b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000001c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000001d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000001e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+000001f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................" ]
+then
+ echo "$0: unexpected pattern:"
+ cat data-raw.out
+ exit 1
+fi
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "iszero.h"
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ char *data;
+ size_t size;
+
+ if (test_start_nbdkit ("data",
+ /* This example from the nbdkit-data-plugin(1)
+ * man page creates a 1 MB disk with one
+ * empty MBR-formatted partition.
+ */
+ "data=@0x1b8 0xf8 0x21 0xdc 0xeb 0 0 0 0 "
+ "2 0 0x83 0x20 0x20 0 1 0 0 0 0xff 0x7 "
+ "@0x1fe 0x55 0xaa",
+ "size=1M",
+ NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Read the actual data in the first sector, to check that it
+ * matches what we described in the data= parameter above.
+ */
+ data = guestfs_pread_device (g, "/dev/sda", 512, 0, &size);
+ if (data == NULL)
+ exit (EXIT_FAILURE);
+ if (size != 512) {
+ fprintf (stderr, "%s: unexpected short read\n", program_name);
+ exit (EXIT_FAILURE);
+ }
+ if (memcmp (&data[0x1b8],
+ "\xf8\x21\xdc\xeb\0\0\0\0"
+ "\2\0\x83\x20\x20\0\1\0\0\0\xff\x7", 20) != 0 ||
+ memcmp (&data[0x1fe], "\x55\xaa", 2) != 0) {
+ fprintf (stderr, "%s: unexpected data in boot sector\n", program_name);
+ exit (EXIT_FAILURE);
+ }
+ memset (&data[0x1b8], 0, 20);
+ memset (&data[0x1fe], 0, 2);
+ if (!is_zero (data, 512)) {
+ fprintf (stderr, "%s: unexpected data in zero parts of boot sector\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+ free (data);
+
+ /* Since the disk image has a partition, we should be able to format it. */
+ if (guestfs_mkfs (g, "vfat", "/dev/sda1") == -1)
+ exit (EXIT_FAILURE);
+
+ /* Mount it and write a file. */
+ if (guestfs_mount (g, "/dev/sda1", "/") == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_write (g, "/foo", "hello", 5) == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_shutdown (g) == -1)
+ exit (EXIT_FAILURE);
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -x
+
+export LANG=C
+
+# Test nbdkit -D option.
+
+files=debug-flags.out
+rm -f $files
+cleanup_fn rm -f $files
+
+expected_failure ()
+{
+ echo "expected previous nbdkit command to fail, but it did not"
+ exit 1
+}
+
+check_error ()
+{
+ if ! grep -sq "$1" debug-flags.out; then
+ echo "unexpected error message containing: $1"
+ echo "actual output:"
+ cat debug-flags.out
+ exit 1
+ fi
+}
+
+# This is expected to fail because we didn't set the file= parameter,
+# but it should not fail because of the debug flag.
+nbdkit -f -D example2.extra=1 example2 2>debug-flags.out && expected_failure
+check_error "you must supply the file="
+
+# This should fail because the -D flag refers to an unknown global in
+# a known plugin.
+nbdkit -f -D example2.unknown=1 example2 2>debug-flags.out && expected_failure
+check_error "does not contain a global variable called example2_debug_unknown"
+
+# This should fail because the -D flag is unused.
+nbdkit -f -D example1.foo=1 example2 2>debug-flags.out && expected_failure
+check_error "was not used"
+
+# These should fail because the -D flag has a bad format.
+nbdkit -f -D = example2 2>debug-flags.out && expected_failure
+check_error "must have the format"
+nbdkit -f -D . example2 2>debug-flags.out && expected_failure
+check_error "must have the format"
+nbdkit -f -D =. example2 2>debug-flags.out && expected_failure
+check_error "must have the format"
+nbdkit -f -D .= example2 2>debug-flags.out && expected_failure
+check_error "must have the format"
+nbdkit -f -D .extra=1 example2 2>debug-flags.out && expected_failure
+check_error "must have the format"
+nbdkit -f -D example2.=1 example2 2>debug-flags.out && expected_failure
+check_error "must have the format"
+nbdkit -f -D example2.extra= example2 2>debug-flags.out && expected_failure
+check_error "must have the format"
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <time.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int i, r;
+ time_t start_t, end_t;
+
+ if (test_start_nbdkit ("--filter", "delay",
+ "memory", "size=1M",
+ "wdelay=10", NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Reads should work as normal. Do lots of small reads here so
+ * we will notice if they are being delayed.
+ */
+ for (i = 0; i < 100; ++i) {
+ char *data;
+ size_t n;
+
+ data = guestfs_pread_device (g, "/dev/sda", 512, 51200-512*i, &n);
+ if (data == NULL)
+ exit (EXIT_FAILURE);
+ free (data);
+ }
+
+ /* Writes should be delayed by >= 10 seconds. */
+ time (&start_t);
+ if (guestfs_pwrite_device (g, "/dev/sda", "hello", 5, 100000) == -1)
+ exit (EXIT_FAILURE);
+ if (guestfs_sync (g) == -1)
+ exit (EXIT_FAILURE);
+ time (&end_t);
+
+ if (end_t - start_t < 10) {
+ fprintf (stderr, "%s FAILED: no write delay detected\n", program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2014 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+
+output="$(nbdkit --dump-config)"
+if [[ ! ( "$output" =~ ^bindir= ) ]]; then
+ echo "$0: unexpected output from nbdkit --dump-config"
+ echo "$output"
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2017 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+set -e
+source ./functions.sh
+
+output="$(nbdkit example4 --dump-plugin)"
+if [[ ! ( "$output" =~ example4_extra\=hello ) ]]; then
+ echo "$0: unexpected output from nbdkit example4 --dump-plugin"
+ echo "$output"
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2014 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+# Basic check that the name field is present.
+output="$(nbdkit example1 --dump-plugin)"
+if [[ ! ( "$output" =~ name\=example1 ) ]]; then
+ echo "$0: unexpected output from nbdkit example1 --dump-plugin"
+ echo "$output"
+ exit 1
+fi
+
+# example2 overrides the --dump-plugin with extra data.
+output="$(nbdkit example2 --dump-plugin)"
+if [[ ! ( "$output" =~ example2_extra\=hello ) ]]; then
+ echo "$0: unexpected output from nbdkit example2 --dump-plugin"
+ echo "$output"
+ exit 1
+fi
+
+# Run nbdkit plugin --dump-plugin for each plugin.
+# However some of these tests are expected to fail.
+test ()
+{
+ vg=; [ "$NBDKIT_VALGRIND" = "1" ] && vg="-valgrind"
+ case "$1$vg" in
+ vddk | vddk-valgrind)
+ echo "$0: skipping $1$vg because VDDK cannot run without special environment variables"
+ ;;
+ python-valgrind | ruby-valgrind | tcl-valgrind)
+ echo "$0: skipping $1$vg because this language doesn't support valgrind"
+ ;;
+ *)
+ nbdkit $1 --dump-plugin
+ ;;
+ esac
+}
+foreach_plugin test
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test export flags.
+#
+# Run nbdkit with various can_* callbacks defined and with or without
+# the -r flag, and check that nbdkit constructs the export flags
+# controlling READ_ONLY, ROTATIONAL, SEND_TRIM, etc. as expected.
+#
+# We use the shell plugin because it gives maximum control over the
+# can_* callbacks (at least, max without having to write a C plugin).
+
+source ./functions.sh
+set -e
+
+requires qemu-nbd --version
+
+# This test uses the ‘qemu-nbd --list’ option added in qemu 4.0.
+if ! qemu-nbd --help | grep -sq -- --list; then
+ echo "$0: skipping because qemu-nbd does not support the --list option"
+ exit 77
+fi
+
+files="eflags.out"
+rm -f $files
+cleanup_fn rm -f $files
+
+# The export flags.
+# See also common/protocol/protocol.h
+HAS_FLAGS=$(( 1 << 0 ))
+READ_ONLY=$(( 1 << 1 ))
+SEND_FLUSH=$(( 1 << 2 ))
+SEND_FUA=$(( 1 << 3 ))
+ROTATIONAL=$(( 1 << 4 ))
+SEND_TRIM=$(( 1 << 5 ))
+SEND_WRITE_ZEROES=$(( 1 << 6 ))
+SEND_DF=$(( 1 << 7 ))
+CAN_MULTI_CONN=$(( 1 << 8 ))
+SEND_RESIZE=$(( 1 << 9 ))
+SEND_CACHE=$(( 1 << 10 ))
+
+do_nbdkit ()
+{
+ nbdkit -v -U - "$@" sh - --run 'qemu-nbd --list -k $unixsocket' |
+ grep -E "flags: 0x" | grep -Eoi '0x[a-f0-9]+' > eflags.out
+ echo -n eflags=; cat eflags.out
+
+ # Convert hex flags to decimal and assign it to $eflags.
+ eflags=$(printf "%d" $(cat eflags.out))
+}
+
+fail ()
+{
+ echo "error: $@ (actual flags were $eflags)"
+ exit 1
+}
+
+#----------------------------------------------------------------------
+# can_write=false
+
+do_nbdkit <<'EOF'
+case "$1" in
+ get_size) echo 1M ;;
+ *) exit 2 ;;
+esac
+EOF
+
+[ $eflags -eq $(( HAS_FLAGS|READ_ONLY|SEND_DF )) ] ||
+ fail "expected HAS_FLAGS|READ_ONLY|SEND_DF"
+
+#----------------------------------------------------------------------
+# -r
+# can_write=false
+
+do_nbdkit -r <<'EOF'
+case "$1" in
+ get_size) echo 1M ;;
+ *) exit 2 ;;
+esac
+EOF
+
+[ $eflags -eq $(( HAS_FLAGS|READ_ONLY|SEND_DF )) ] ||
+ fail "expected HAS_FLAGS|READ_ONLY|SEND_DF"
+
+#----------------------------------------------------------------------
+# can_write=true
+#
+# NBD_FLAG_SEND_WRITE_ZEROES is always set on writable connections
+# even if can_zero returns false, because nbdkit reckons it can
+# emulate zeroing using pwrite.
+
+do_nbdkit <<'EOF'
+case "$1" in
+ get_size) echo 1M ;;
+ can_write) exit 0 ;;
+ *) exit 2 ;;
+esac
+EOF
+
+[ $eflags -eq $(( HAS_FLAGS|SEND_WRITE_ZEROES|SEND_DF )) ] ||
+ fail "expected HAS_FLAGS|SEND_WRITE_ZEROES|SEND_DF"
+
+#----------------------------------------------------------------------
+# -r
+# can_write=true
+#
+# The -r flag overrides the plugin so this behaves as if can_write is
+# false.
+
+do_nbdkit -r <<'EOF'
+case "$1" in
+ get_size) echo 1M ;;
+ can_write) exit 0 ;;
+ *) exit 2 ;;
+esac
+EOF
+
+[ $eflags -eq $(( HAS_FLAGS|READ_ONLY|SEND_DF )) ] ||
+ fail "expected HAS_FLAGS|READ_ONLY|SEND_DF"
+
+#----------------------------------------------------------------------
+# can_write=false
+# can_trim=true
+# can_zero=true
+#
+# If writing is not possible then trim and zero are always disabled.
+
+do_nbdkit <<'EOF'
+case "$1" in
+ get_size) echo 1M ;;
+ can_write) exit 3 ;;
+ can_trim) exit 0 ;;
+ can_zero) exit 0 ;;
+ *) exit 2 ;;
+esac
+EOF
+
+[ $eflags -eq $(( HAS_FLAGS|READ_ONLY|SEND_DF )) ] ||
+ fail "expected HAS_FLAGS|READ_ONLY|SEND_DF"
+
+#----------------------------------------------------------------------
+# -r
+# can_write=false
+# can_trim=true
+# can_zero=true
+#
+# This is a formality, but check it's the same as above.
+
+do_nbdkit -r <<'EOF'
+case "$1" in
+ get_size) echo 1M ;;
+ can_write) exit 3 ;;
+ can_trim) exit 0 ;;
+ can_zero) exit 0 ;;
+ *) exit 2 ;;
+esac
+EOF
+
+[ $eflags -eq $(( HAS_FLAGS|READ_ONLY|SEND_DF )) ] ||
+ fail "expected HAS_FLAGS|READ_ONLY|SEND_DF"
+
+#----------------------------------------------------------------------
+# can_write=true
+# can_trim=true
+
+do_nbdkit <<'EOF'
+case "$1" in
+ get_size) echo 1M ;;
+ can_write) exit 0 ;;
+ can_trim) exit 0 ;;
+ *) exit 2 ;;
+esac
+EOF
+
+[ $eflags -eq $(( HAS_FLAGS|SEND_TRIM|SEND_WRITE_ZEROES|SEND_DF )) ] ||
+ fail "expected HAS_FLAGS|SEND_TRIM|SEND_WRITE_ZEROES|SEND_DF"
+
+#----------------------------------------------------------------------
+# can_write=true
+# is_rotational=true
+
+do_nbdkit <<'EOF'
+case "$1" in
+ get_size) echo 1M ;;
+ can_write) exit 0 ;;
+ is_rotational) exit 0 ;;
+ *) exit 2 ;;
+esac
+EOF
+
+[ $eflags -eq $(( HAS_FLAGS|ROTATIONAL|SEND_WRITE_ZEROES|SEND_DF )) ] ||
+ fail "expected HAS_FLAGS|ROTATIONAL|SEND_WRITE_ZEROES|SEND_DF"
+
+#----------------------------------------------------------------------
+# -r
+# can_write=true
+# is_rotational=true
+
+do_nbdkit -r <<'EOF'
+case "$1" in
+ get_size) echo 1M ;;
+ can_write) exit 0 ;;
+ is_rotational) exit 0 ;;
+ *) exit 2 ;;
+esac
+EOF
+
+[ $eflags -eq $(( HAS_FLAGS|READ_ONLY|ROTATIONAL|SEND_DF )) ] ||
+ fail "expected HAS_FLAGS|READ_ONLY|ROTATIONAL|SEND_DF"
+
+#----------------------------------------------------------------------
+# can_write=true
+# can_fua=native
+
+do_nbdkit <<'EOF'
+case "$1" in
+ get_size) echo 1M ;;
+ can_write) exit 0 ;;
+ can_fua) echo "native" ;;
+ *) exit 2 ;;
+esac
+EOF
+
+[ $eflags -eq $(( HAS_FLAGS|SEND_FUA|SEND_WRITE_ZEROES|SEND_DF )) ] ||
+ fail "expected HAS_FLAGS|SEND_FUA|SEND_WRITE_ZEROES|SEND_DF"
+
+#----------------------------------------------------------------------
+# -r
+# can_write=true
+# can_fua=native
+#
+# Setting read-only should ignore can_fua.
+
+do_nbdkit -r <<'EOF'
+case "$1" in
+ get_size) echo 1M ;;
+ can_write) exit 0 ;;
+ can_fua) echo "native" ;;
+ *) exit 2 ;;
+esac
+EOF
+
+[ $eflags -eq $(( HAS_FLAGS|READ_ONLY|SEND_DF )) ] ||
+ fail "expected HAS_FLAGS|READ_ONLY|SEND_DF"
+
+#----------------------------------------------------------------------
+# -r
+# can_multi_conn=true
+
+do_nbdkit -r <<'EOF'
+case "$1" in
+ get_size) echo 1M ;;
+ can_multi_conn) exit 0 ;;
+ *) exit 2 ;;
+esac
+EOF
+
+[ $eflags -eq $(( HAS_FLAGS|READ_ONLY|SEND_DF|CAN_MULTI_CONN )) ] ||
+ fail "expected HAS_FLAGS|READ_ONLY|SEND_DF|CAN_MULTI_CONN"
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <time.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ FILE *fp;
+ char *data;
+#if 0
+ int error;
+#endif
+ char tmpdir[] = "/tmp/errorXXXXXX";
+ char error_file[] = "/tmp/errorXXXXXX/trigger";
+ char error_file_param[] = "error-file=/tmp/errorXXXXXX/trigger";
+
+ /* Create temporary directory to store the trigger file. */
+ if (mkdtemp (tmpdir) == NULL) {
+ perror ("mkdtemp");
+ exit (EXIT_FAILURE);
+ }
+
+ memcpy (error_file, tmpdir, strlen (tmpdir));
+ memcpy (&error_file_param[11], tmpdir, strlen (tmpdir));
+
+ if (test_start_nbdkit ("--filter", "error",
+ "memory", "size=1M",
+ "error=EIO",
+ "error-rate=100%",
+ error_file_param,
+ NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Format the disk with a filesystem. No errors are being injected
+ * yet so we expect this to work.
+ */
+ if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_mkfs (g, "ext2", "/dev/sda1") == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_mount (g, "/dev/sda1", "/") == -1)
+ exit (EXIT_FAILURE);
+
+#define filename "/hello.txt"
+#define content "hello, people of the world"
+
+ if (guestfs_write (g, filename, content, strlen (content)) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Try as hard as we can to sync data and kill the libguestfs cache. */
+ if (guestfs_sync (g) == -1)
+ exit (EXIT_FAILURE);
+ if (guestfs_drop_caches (g, 3) == -1)
+ exit (EXIT_FAILURE);
+ sleep (1);
+
+ /* Now start injecting EIO errors. */
+ fp = fopen (error_file, "w");
+ if (fp == NULL) {
+ perror (error_file);
+ exit (EXIT_FAILURE);
+ }
+ fclose (fp);
+
+ data = guestfs_cat (g, filename);
+ if (data != NULL) {
+ fprintf (stderr,
+ "%s: error: "
+ "expecting Input/output error, but read data!\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+
+#if 0
+ /* Apparently libguestfs doesn't preserve the errno here yet XXX */
+ error = guestfs_last_errno (g);
+ if (error != EIO) {
+ fprintf (stderr, "%s: error: expecting errno = EIO, but got %d\n",
+ program_name, error);
+ exit (EXIT_FAILURE);
+ }
+#endif
+
+ /* Stop injecting errors, hope that the filesystem recovers. */
+ unlink (error_file);
+
+ /* But we'll probably have to remount the filesystem because ext2
+ * will get itself into a "state".
+ */
+ if (guestfs_umount (g, "/") == -1)
+ exit (EXIT_FAILURE);
+ if (guestfs_mount (g, "/dev/sda1", "/") == -1)
+ exit (EXIT_FAILURE);
+
+ data = guestfs_cat (g, filename);
+ if (data == NULL)
+ exit (EXIT_FAILURE);
+ if (strcmp (data, content) != 0) {
+ fprintf (stderr, "%s: error: read unexpected data\n", program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ guestfs_close (g);
+
+ rmdir (tmpdir);
+
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-io --version
+
+sock=`mktemp -u`
+files="$sock error0.pid"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Run nbdkit with the error filter.
+start_nbdkit -P error0.pid -U $sock \
+ --filter=error \
+ pattern size=1G error-rate=0%
+
+# Because error rate is 0%, reads should never fail.
+qemu-io -r -f raw "nbd+unix://?socket=$sock" \
+ -c "r 0M 10M" \
+ -c "r 20M 10M" \
+ -c "r 40M 10M" \
+ -c "r 60M 10M"
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-io --version
+
+sock=`mktemp -u`
+files="$sock error10.pid"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Run nbdkit with the error filter.
+start_nbdkit -P error10.pid -U $sock \
+ --filter=error \
+ pattern size=1G error-rate=10%
+
+# The error rate is 10% so about every 1 in 10 operations should fail.
+errors=0
+for i in {1..100}; do
+ qemu-io -r -f raw "nbd+unix://?socket=$sock" \
+ -c "r 0 512" || ((++errors))
+done
+
+echo errors=$errors
+# Unfortunately there's no "right answer" here, so our policy is if we
+# see the error number in a real test run we will extend the
+# boundaries here.
+if [ $errors -lt 3 ] || [ $errors -gt 21 ]; then
+ echo "$0: unexpected error rate"
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-io --version
+
+sock=`mktemp -u`
+files="$sock error100.pid"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Run nbdkit with the error filter.
+start_nbdkit -P error100.pid -U $sock \
+ --filter=error \
+ pattern size=1G error-rate=100%
+
+# The error rate is 100% so every operation must fail.
+for i in {1..100}; do
+ if qemu-io -r -f raw "nbd+unix://?socket=$sock" \
+ -c "r 0 512"; then
+ echo "$0: expected qemu-io command to fail"
+ exit 1
+ fi
+done
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <errno.h>
+
+#include "exit-with-parent.h"
+#include "test.h"
+
+static char pidpath[] = "/tmp/nbdkitpidXXXXXX";
+
+static void run_test (void);
+
+int
+main (int argc, char *argv[])
+{
+#ifndef HAVE_EXIT_WITH_PARENT
+ printf ("--exit-with-parent is not implemented on this platform, skipping\n");
+ exit (77);
+#else
+ run_test ();
+ exit (EXIT_SUCCESS);
+#endif
+}
+
+static void
+run_test (void)
+{
+ pid_t cpid, nbdpid;
+ int i, fd, status;
+ FILE *fp;
+ ssize_t r;
+ size_t n;
+ char *pidstr;
+
+ fd = mkstemp (pidpath);
+ if (fd == -1) {
+ perror ("mkstemp");
+ exit (EXIT_FAILURE);
+ }
+ close (fd);
+ unlink (pidpath);
+
+ /* We're going to create:
+ *
+ * monitoring process (this)
+ * |
+ * `--- child process waits for nbdkit to start then exits (cpid)
+ * |
+ * `--- exec nbdkit --exit-with-parent (pidpath)
+ *
+ * We can read the nbdkit PID in the monitoring process using
+ * the pidpath file.
+ */
+ cpid = fork ();
+ if (cpid == 0) { /* child process */
+ pid_t pid;
+
+ pid = fork ();
+ if (pid == 0) { /* exec nbdkit process */
+ const char *argv[] = {
+ "nbdkit", "-U", "-", "-P", pidpath, "-f", "--exit-with-parent",
+ "example1",
+ NULL
+ };
+
+ execvp ("nbdkit", (char **) argv);
+ perror ("exec: nbdkit");
+ _exit (EXIT_FAILURE);
+ }
+
+ /* Wait for the pidfile to turn up, which indicates that nbdkit has
+ * started up successfully and is ready to serve requests. However
+ * if 'pid' exits in this time it indicates a failure to start up.
+ * Also there is a timeout in case nbdkit hangs.
+ */
+ for (i = 0; i < NBDKIT_START_TIMEOUT; ++i) {
+ if (waitpid (pid, NULL, WNOHANG) == pid)
+ goto early_exit;
+
+ if (kill (pid, 0) == -1) {
+ if (errno == ESRCH) {
+ early_exit:
+ fprintf (stderr,
+ "%s FAILED: nbdkit exited before starting to serve files\n",
+ program_name);
+ pid = 0;
+ exit (EXIT_FAILURE);
+ }
+ perror ("kill");
+ }
+
+ if (access (pidpath, F_OK) == 0)
+ break;
+
+ sleep (1);
+ }
+
+ /* nbdkit is now running, check that --exit-with-parent works
+ * by exiting abruptly here.
+ */
+ _exit (EXIT_SUCCESS);
+ }
+
+ /* Monitoring process. */
+ if (waitpid (cpid, &status, 0) == -1) {
+ perror ("waitpid (cpid)");
+ exit (EXIT_FAILURE);
+ }
+ if (WIFEXITED (status) && WEXITSTATUS (status) != 1)
+ exit (WEXITSTATUS (status));
+ if (WIFSIGNALED (status)) {
+ fprintf (stderr, "child terminated by signal %d\n", WTERMSIG (status));
+ exit (EXIT_FAILURE);
+ }
+ if (WIFSTOPPED (status)) {
+ fprintf (stderr, "child stopped by signal %d\n", WSTOPSIG (status));
+ exit (EXIT_FAILURE);
+ }
+
+ /* Get the PID of nbdkit from the pidpath file. */
+ fp = fopen (pidpath, "r");
+ if (fp == NULL) {
+ perror (pidpath);
+ exit (EXIT_FAILURE);
+ }
+ r = getline (&pidstr, &n, fp);
+ if (r == -1) {
+ perror ("read");
+ exit (EXIT_FAILURE);
+ }
+ if (sscanf (pidstr, "%d", &nbdpid) != 1) {
+ fprintf (stderr, "could not read nbdkit PID from -P pidfile (%s)\n",
+ pidpath);
+ exit (EXIT_FAILURE);
+ }
+ fclose (fp);
+ free (pidstr);
+ unlink (pidpath);
+
+ /* We expect PID to go away, but it might take a few seconds. */
+ for (i = 0; i < NBDKIT_START_TIMEOUT; ++i) {
+ if (kill (nbdpid, 0) == -1) {
+ if (errno == ESRCH) goto done; /* good - gone away */
+ perror ("kill");
+ exit (EXIT_FAILURE);
+ }
+
+ sleep (1);
+ }
+
+ fprintf (stderr, "--exit-with-parent does not appear to work\n");
+ exit (EXIT_FAILURE);
+
+ done:
+ ;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ char *data;
+
+ if (test_start_nbdkit ("ext2", "-r", "disk=ext2.img", "file=/disks/disk.img",
+ NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_READONLY, 1,
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* disk.img contains one partition and a test file called "hello.txt" */
+ if (guestfs_mount_ro (g, "/dev/sda1", "/") == -1)
+ exit (EXIT_FAILURE);
+
+ data = guestfs_cat (g, "/hello.txt");
+ if (!data)
+ exit (EXIT_FAILURE);
+
+ if (strcmp (data, "hello,world") != 0) {
+ fprintf (stderr,
+ "%s FAILED: unexpected content of /hello.txt file "
+ "(actual: %s, expected: \"hello,world\")\n",
+ program_name, data);
+ exit (EXIT_FAILURE);
+ }
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+static char *loopdev; /* Name of the loop device. */
+static void detach_loopdev (void);
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ int fd;
+ char cmd[64], buf[64];
+ char disk[] = LARGE_TMPDIR "/diskXXXXXX"; /* Backing disk. */
+ FILE *pp;
+ char *data;
+ size_t len;
+ char *s;
+
+ /* This test can only be run as root, and will be skipped otherwise. */
+ if (geteuid () != 0) {
+ fprintf (stderr, "%s: this test has to be run as root.\n",
+ program_name);
+ exit (77);
+ }
+
+ /* losetup must be available. */
+ r = system ("losetup --version");
+ if (r != 0) {
+ fprintf (stderr, "%s: losetup program must be installed.\n",
+ program_name);
+ exit (77);
+ }
+
+ /* Create the temporary backing disk. */
+ fd = mkstemp (disk);
+ if (fd == -1) {
+ perror ("mkstemp");
+ exit (EXIT_FAILURE);
+ }
+ if (ftruncate (fd, 100 * 1024 * 1024) == -1) {
+ perror ("ftruncate");
+ unlink (disk);
+ exit (EXIT_FAILURE);
+ }
+
+ /* Create the loopback device. */
+ snprintf (cmd, sizeof cmd, "losetup -f --show %s", disk);
+ pp = popen (cmd, "r");
+ if (pp == NULL) {
+ perror ("popen: losetup");
+ unlink (disk);
+ exit (EXIT_FAILURE);
+ }
+ if (fgets (buf, sizeof buf, pp) == NULL) {
+ fprintf (stderr, "%s: could not read loop device name from losetup\n",
+ program_name);
+ unlink (disk);
+ exit (EXIT_FAILURE);
+ }
+ len = strlen (buf);
+ if (len > 0 && buf[len-1] == '\n') {
+ buf[len-1] = '\0';
+ len--;
+ }
+ pclose (pp);
+
+ /* We can delete the backing disk. The loop device will hold it open. */
+ unlink (disk);
+
+ /* If we get to this point, set up an atexit handler to detach the
+ * loop device.
+ */
+ loopdev = malloc (len+1);
+ if (loopdev == NULL) {
+ perror ("malloc");
+ exit (EXIT_FAILURE);
+ }
+ strcpy (loopdev, buf);
+ atexit (detach_loopdev);
+
+ /* Start nbdkit. */
+ if (test_start_nbdkit ("-D", "file.zero=1",
+ "file", loopdev, NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Partition the disk. */
+ if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1)
+ exit (EXIT_FAILURE);
+ if (guestfs_mkfs (g, "ext4", "/dev/sda1") == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_mount_options (g, "discard", "/dev/sda1", "/") == -1)
+ exit (EXIT_FAILURE);
+
+#define filename "/hello.txt"
+#define content "hello, people of the world"
+
+ if (guestfs_write (g, filename, content, strlen (content)) == -1)
+ exit (EXIT_FAILURE);
+
+ data = guestfs_cat (g, filename);
+ if (!data)
+ exit (EXIT_FAILURE);
+
+ if (strcmp (data, content) != 0) {
+ fprintf (stderr,
+ "%s FAILED: unexpected content of %s file "
+ "(actual: %s, expected: %s)\n",
+ program_name, filename, data, content);
+ exit (EXIT_FAILURE);
+ }
+
+ /* Run sync to test flush path. */
+ if (guestfs_sync (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Run fstrim to test trim path. However only recent versions of
+ * libguestfs have this, and it probably only works in recent
+ * versions of qemu.
+ */
+#ifdef GUESTFS_HAVE_FSTRIM
+ if (guestfs_fstrim (g, "/", -1) == -1)
+ exit (EXIT_FAILURE);
+#endif
+
+ /* Run fallocate(1) on the device to test zero path. */
+ if (guestfs_umount (g, "/") == -1)
+ exit (EXIT_FAILURE);
+ const char *sh[] = { "fallocate", "-nzl", "64k", "/dev/sda", NULL };
+ s = guestfs_debug (g, "sh", (char **) sh);
+ free (s);
+
+ if (guestfs_shutdown (g) == -1)
+ exit (EXIT_FAILURE);
+
+ guestfs_close (g);
+
+ /* The atexit handler should detach the loop device and clean up
+ * the backing disk.
+ */
+ exit (EXIT_SUCCESS);
+}
+
+/* atexit handler. */
+static void
+detach_loopdev (void)
+{
+ char cmd[64];
+
+ if (loopdev == NULL)
+ return;
+
+ snprintf (cmd, sizeof cmd, "losetup -d %s", loopdev);
+#pragma GCC diagnostic push
+#pragma GCC diagnostic ignored "-Wunused-result"
+ system (cmd);
+#pragma GCC diagnostic pop
+ free (loopdev);
+ loopdev = NULL;
+}
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# The output of qemu-img map on the local sparse file ‘disk’ should be
+# identical to the output when we use the file plugin to read the
+# extents.
+
+source ./functions.sh
+set -e
+set -x
+
+requires jq --version
+requires qemu-img --version
+requires qemu-img map --help
+
+files="test-file-extents.out test-file-extents.expected"
+rm -f $files
+cleanup_fn rm -f $files
+
+qemu-img map -f raw --output=json disk |
+ jq -c '.[] | {start:.start, length:.length, data:.data, zero:.zero}' \
+ > test-file-extents.out
+nbdkit -U - file disk --run 'qemu-img map -f raw --output=json $nbd' |
+ jq -c '.[] | {start:.start, length:.length, data:.data, zero:.zero}' \
+ > test-file-extents.expected
+
+diff -u test-file-extents.out test-file-extents.expected
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ char *data;
+ size_t i, size;
+
+ if (test_start_nbdkit ("file", "file-data", NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Check the data in the file is \x01-\x08 repeated 512 times. */
+ data = guestfs_pread_device (g, "/dev/sda", 8 * 512, 0, &size);
+ if (!data)
+ exit (EXIT_FAILURE);
+ if (size != 8 * 512) {
+ fprintf (stderr,
+ "%s FAILED: unexpected size (actual: %zu, expected: 512)\n",
+ program_name, size);
+ exit (EXIT_FAILURE);
+ }
+
+ for (i = 0; i < 512 * 8; i += 8) {
+ if (data[i] != 1 || data[i+1] != 2 ||
+ data[i+2] != 3 || data[i+3] != 4 ||
+ data[i+4] != 5 || data[i+5] != 6 ||
+ data[i+6] != 7 || data[i+7] != 8) {
+ fprintf (stderr, "%s FAILED: unexpected data returned at offset %zu\n",
+ program_name, i);
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ free (data);
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the floppy / FAT32 plugin.
+
+source ./functions.sh
+set -e
+
+sock=`mktemp -u`
+files="floppy.pid $sock floppy.test1 floppy.test2"
+rm -f $files
+cleanup_fn rm -f $files
+
+# When testing this we need to use a directory which won't change
+# during the test (so not the current directory).
+start_nbdkit -P floppy.pid -U $sock floppy $srcdir/../plugins
+
+# Check the floppy content.
+guestfish --ro --format=raw -a "nbd://?socket=$sock" -m /dev/sda1 <<'EOF'
+ ll /
+ ll /floppy/
+ ll /iso/
+
+# This reads out all the directory entries and all file contents.
+ tar-out / - | cat >/dev/null
+
+# Check some files exist. This also tests LFN support.
+ is-file /floppy/Makefile.am
+ is-file /floppy/nbdkit-floppy-plugin.pod
+
+# Download some files and compare to local copies.
+ download /floppy/Makefile.am floppy.test1
+ download /iso/Makefile.am floppy.test2
+EOF
+
+# Compare downloaded files to local versions.
+cmp floppy.test1 $srcdir/../plugins/floppy/Makefile.am
+cmp floppy.test2 $srcdir/../plugins/iso/Makefile.am
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2014 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+set -e
+set -x
+source ./functions.sh
+
+# Test nbdkit -f option.
+
+sock=`mktemp -u`
+files="foreground.pid $sock"
+rm -f $files
+cleanup_fn rm -f $files
+
+nbdkit -f -P foreground.pid -U $sock example1 &
+bg_pid=$!
+
+# We may have to wait a short time for the pid file to appear.
+for i in {1..60}; do
+ if test -f foreground.pid; then
+ break
+ fi
+ sleep 1
+done
+if ! test -f foreground.pid; then
+ echo "$0: PID file was not created"
+ exit 1
+fi
+
+pid="$(cat foreground.pid)"
+cleanup_fn kill $pid
+
+test "$bg_pid" -eq "$pid"
+
+# Check the socket was created (and is a socket).
+test -S $sock
+
+# Kill the process.
+kill $pid
+
+# Check the process exits (eventually).
+for i in {1..10}; do
+ if ! kill -s 0 $pid; then
+ break;
+ fi
+ sleep 1
+done
+if kill -s 0 $pid; then
+ echo "$0: process did not exit after sending a signal"
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+sockdir=`mktemp -d`
+files="fua.img
+ fua1.log fua1.pid
+ fua2.log fua2.pid
+ fua3.log fua3.pid
+ fua4.log fua4.pid"
+rm -f $files
+
+# Prep images, and check that qemu-io understands the actions we plan on
+# doing. We can't test trim+FUA, since qemu-io won't expose that.
+truncate -s 1M fua.img
+if ! qemu-io -f raw -t none -c flush -c 'w -f -z 0 64k' fua.img; then
+ echo "$0: missing or broken qemu-io"
+ rm fua.img
+ exit 77
+fi
+
+# For easier debugging, dump the final log files before removing them
+# on exit.
+cleanup ()
+{
+ echo "Log 1 file contents:"
+ cat fua1.log || :
+ echo "Log 2 file contents:"
+ cat fua2.log || :
+ echo "Log 3 file contents:"
+ cat fua3.log || :
+ echo "Log 4 file contents:"
+ cat fua4.log || :
+ rm -f $files
+ rm -rf $sockdir
+}
+cleanup_fn cleanup
+
+# Run four parallel nbdkit; to compare the logs and see what changes.
+# 1: fuamode=none (default): client should send flush instead
+# 2: fuamode=emulate: log shows that blocksize optimizes fua to flush
+# 3: fuamode=native: log shows that blocksize preserves fua
+# 4: fuamode=force: log shows that fua is always enabled
+start_nbdkit -P fua1.pid -U $sockdir/fua1.sock \
+ --filter=log --filter=fua \
+ file logfile=fua1.log fua.img
+start_nbdkit -P fua2.pid -U $sockdir/fua2.sock \
+ --filter=blocksize --filter=log --filter=fua \
+ file logfile=fua2.log fua.img fuamode=emulate maxdata=4k maxlen=4k
+start_nbdkit -P fua3.pid -U $sockdir/fua3.sock \
+ --filter=blocksize --filter=log --filter=fua \
+ file logfile=fua3.log fua.img fuamode=native maxdata=4k maxlen=4k
+start_nbdkit -P fua4.pid -U $sockdir/fua4.sock \
+ --filter=fua --filter=log \
+ file logfile=fua4.log fua.img fuamode=force
+
+# Perform a flush, write, and zero, first without then with FUA
+for f in '' -f; do
+ for i in {1..4}; do
+ qemu-io -f raw -t none -c flush -c "w $f 0 64k" -c "w -z $f 64k 64k" \
+ "nbd+unix://?socket=$sockdir/fua$i.sock"
+ done
+done
+
+# Test 1: no fua sent over wire, qemu-io sent more flushes in place of fua
+if grep 'fua=1' fua1.log; then
+ echo "filter should have prevented fua"
+ exit 1
+fi
+test $(grep -c 'connection=1 Flush' fua1.log) -lt \
+ $(grep -c 'connection=2 Flush' fua1.log)
+
+# Test 2: either last part of split has fua, or a flush is added, but
+# all earlier parts of the transaction do not have fua
+flush1=$(grep -c 'connection=1 Flush' fua2.log || :)
+flush2=$(grep -c 'connection=2 Flush' fua2.log || :)
+fua=$(grep -c 'connection=2.*fua=1 \.' fua2.log || :)
+test $(( $flush2 - $flush1 + $fua )) = 2
+
+# Test 3: every part of split has fua, and no flushes are added
+flush1=$(grep -c 'connection=1 Flush' fua3.log || :)
+flush2=$(grep -c 'connection=2 Flush' fua3.log || :)
+test $flush1 = $flush2
+test $(grep -c 'connection=2.*fua=1 \.' fua3.log) = 32
+
+# Test 4: flush is no-op, and every transaction has fua
+if grep 'fua=0' fua4.log; then
+ echo "filter should have forced fua"
+ exit 1
+fi
+if grep 'Flush' fua4.log; then
+ echo "filter should have elided flush"
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the full plugin. Note that this plugin causes libguestfs to
+# hang so we have to use low level tools (qemu-io).
+
+source ./functions.sh
+set -e
+
+requires qemu-io --version
+
+sock=`mktemp -u`
+files="full.pid $sock full.out"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Run nbdkit with the full plugin.
+start_nbdkit -P full.pid -U $sock full size=1M
+
+# All reads should succeed.
+qemu-io -f raw "nbd+unix://?socket=$sock" \
+ -c 'r -v 0 512' \
+ -c 'r -v 512 512' \
+ -c 'r -v 1048064 512'
+
+# All writes should fail with the ENOSPC error.
+! LANG=C qemu-io -f raw "nbd+unix://?socket=$sock" \
+ -c 'w -P 1 0 512' \
+ -c 'w -P 2 1048064 512' >& full.out
+grep "No space left on device" full.out
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ char *data;
+
+ if (test_start_nbdkit ("gzip", "-r", "file=disk.gz", NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_READONLY, 1,
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* disk.gz contains one partition and a test file called "hello.txt" */
+ if (guestfs_mount_ro (g, "/dev/sda1", "/") == -1)
+ exit (EXIT_FAILURE);
+
+ data = guestfs_cat (g, "/hello.txt");
+ if (!data)
+ exit (EXIT_FAILURE);
+
+ if (strcmp (data, "hello,world") != 0) {
+ fprintf (stderr,
+ "%s FAILED: unexpected content of /hello.txt file "
+ "(actual: %s, expected: \"hello,world\")\n",
+ program_name, data);
+ exit (EXIT_FAILURE);
+ }
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2014 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+set -e
+source ./functions.sh
+
+output="$(nbdkit file --help)"
+if [[ ! ( "$output" =~ "nbdkit file plugin" ) ]]; then
+ echo "$0: unexpected output from nbdkit file --help"
+ echo "$output"
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2014 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+output="$(nbdkit --help)"
+if [[ ! ( "$output" =~ dump-config ) ]]; then
+ echo "$0: unexpected output from nbdkit --help"
+ echo "$output"
+ exit 1
+fi
+
+# Run nbdkit plugin --help for each plugin.
+# However some of these tests are expected to fail.
+test ()
+{
+ vg=; [ "$NBDKIT_VALGRIND" = "1" ] && vg="-valgrind"
+ case "$1$vg" in
+ vddk | vddk-valgrind)
+ echo "$0: skipping $1$vg because VDDK cannot run without special environment variables"
+ ;;
+ python-valgrind | ruby-valgrind | tcl-valgrind)
+ echo "$0: skipping $1$vg because this language doesn't support valgrind"
+ ;;
+ *)
+ nbdkit $1 --help
+ ;;
+ esac
+}
+foreach_plugin test
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2016-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Every other test uses a Unix domain socket. This tests nbdkit over
+# IPv4 and IPv6 localhost connections.
+
+source ./functions.sh
+set -e
+
+requires ip -V
+requires qemu-img --version
+requires qemu-img info --image-opts driver=file,filename=functions.sh
+
+rm -f ip.pid ipv4.out ipv6.out
+cleanup_fn rm -f ip.pid ipv4.out ipv6.out
+
+# Find an unused port to listen on.
+pick_unused_port
+
+# By default nbdkit will listen on all available interfaces, ie.
+# IPv4 and IPv6.
+start_nbdkit -P ip.pid -p $port example1
+pid="$(cat ip.pid)"
+
+# Check the process exists.
+kill -s 0 $pid
+
+# Check we can connect over the IPv4 loopback interface.
+ipv4_lo="$(ip -o -4 addr show scope host)"
+if test -n "$ipv4_lo"; then
+ qemu-img info --image-opts "file.driver=nbd,file.host=127.0.0.1,file.port=$port" > ipv4.out
+ cat ipv4.out
+ grep -sq "^virtual size: 100M" ipv4.out
+fi
+
+# Check we can connect over the IPv6 loopback interface.
+ipv6_lo="$(ip -o -6 addr show scope host)"
+if test -n "$ipv6_lo"; then
+ qemu-img info --image-opts "file.driver=nbd,file.host=::1,file.port=$port" > ipv6.out
+ cat ipv6.out
+ grep -sq "^virtual size: 100M" ipv6.out
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test ISO plugin.
+
+source ./functions.sh
+set -e
+
+sock=`mktemp -u`
+files="iso.pid $sock"
+rm -f $files
+cleanup_fn rm -f $files
+
+start_nbdkit -P iso.pid -U $sock iso $srcdir/../docs params="-JrT"
+
+# Check the ISO content.
+guestfish --ro --format=raw -a "nbd://?socket=$sock" -m /dev/sda <<'EOF'
+ ll /
+ is-file /Makefile.am
+ is-file /nbdkit.pod
+EOF
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <nbdkit-filter.h>
+
+int
+main (int argc, char *argv[])
+{
+ return 0;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <nbdkit-plugin.h>
+
+int
+main (int argc, char *argv[])
+{
+ return 0;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ const char *s;
+ char *data;
+
+ /* These languages currently fail completely when run under
+ * valgrind, so skip them.
+ */
+ s = getenv ("NBDKIT_VALGRIND");
+ if (s && strcmp (s, "1") == 0 &&
+ (strcmp (LANG, "python") == 0 ||
+ strcmp (LANG, "ruby") == 0 ||
+ strcmp (LANG, "tcl") == 0)) {
+ fprintf (stderr, "%s test skipped under valgrind.\n", LANG);
+ exit (77); /* Tells automake to skip the test. */
+ }
+
+ if (test_start_nbdkit (LANG, SCRIPT, NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* The test script creates an empty disk. We format it, write some
+ * data, and check we can read it back.
+ */
+
+ if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1)
+ exit (EXIT_FAILURE);
+ if (guestfs_mkfs (g, "ext4", "/dev/sda1") == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_mount_options (g, "discard", "/dev/sda1", "/") == -1)
+ exit (EXIT_FAILURE);
+
+#define filename "/hello.txt"
+#define content "hello, people of the world"
+
+ if (guestfs_write (g, filename, content, strlen (content)) == -1)
+ exit (EXIT_FAILURE);
+
+ data = guestfs_cat (g, filename);
+ if (!data)
+ exit (EXIT_FAILURE);
+
+ if (strcmp (data, content) != 0) {
+ fprintf (stderr,
+ "%s FAILED: unexpected content of %s file "
+ "(actual: %s, expected: %s)\n",
+ program_name, filename, data, content);
+ exit (EXIT_FAILURE);
+ }
+ free (data);
+
+ /* Run sync to test flush path. */
+ if (guestfs_sync (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Run fstrim to test trim path. However only recent versions of
+ * libguestfs have this, and it probably only works in recent
+ * versions of qemu.
+ */
+#ifdef GUESTFS_HAVE_FSTRIM
+ if (guestfs_fstrim (g, "/", -1) == -1)
+ exit (EXIT_FAILURE);
+#endif
+
+ /* Run fallocate(1) on the device to test zero path. */
+ if (guestfs_umount (g, "/") == -1)
+ exit (EXIT_FAILURE);
+ const char *cmd[] = { "fallocate", "-nzl", "64k", "/dev/sda", NULL };
+ data = guestfs_debug (g, "sh", (char **) cmd);
+ free (data);
+
+ if (guestfs_shutdown (g) == -1)
+ exit (EXIT_FAILURE);
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+
+#include <nbdkit-filter.h>
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+#define str(s) #s
+#define DEBUG_FUNCTION nbdkit_debug ("%s: %s", layer, __func__)
+
+static void
+test_layers_filter_load (void)
+{
+ DEBUG_FUNCTION;
+}
+
+static void
+test_layers_filter_unload (void)
+{
+ DEBUG_FUNCTION;
+}
+
+static int
+test_layers_filter_config (nbdkit_next_config *next, void *nxdata,
+ const char *key, const char *value)
+{
+ DEBUG_FUNCTION;
+ return next (nxdata, key, value);
+}
+
+static int
+test_layers_filter_config_complete (nbdkit_next_config_complete *next,
+ void *nxdata)
+{
+ DEBUG_FUNCTION;
+ return next (nxdata);
+}
+
+#define test_layers_filter_config_help \
+ "test_layers_" layer "_config_help"
+
+static void *
+test_layers_filter_open (nbdkit_next_open *next, void *nxdata, int readonly)
+{
+ static int handle;
+
+ DEBUG_FUNCTION;
+
+ if (next (nxdata, readonly) == -1)
+ return NULL;
+
+ return &handle;
+}
+
+static void
+test_layers_filter_close (void *handle)
+{
+ DEBUG_FUNCTION;
+}
+
+static int
+test_layers_filter_prepare (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ DEBUG_FUNCTION;
+ return 0;
+}
+
+static int
+test_layers_filter_finalize (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ DEBUG_FUNCTION;
+ return 0;
+}
+
+static int64_t
+test_layers_filter_get_size (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ DEBUG_FUNCTION;
+ return next_ops->get_size (nxdata);
+}
+
+static int
+test_layers_filter_can_write (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ DEBUG_FUNCTION;
+ return next_ops->can_write (nxdata);
+}
+
+static int
+test_layers_filter_can_flush (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ DEBUG_FUNCTION;
+ return next_ops->can_flush (nxdata);
+}
+
+static int
+test_layers_filter_is_rotational (struct nbdkit_next_ops *next_ops,
+ void *nxdata,
+ void *handle)
+{
+ DEBUG_FUNCTION;
+ return next_ops->is_rotational (nxdata);
+}
+
+static int
+test_layers_filter_can_trim (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ DEBUG_FUNCTION;
+ return next_ops->can_trim (nxdata);
+}
+
+static int
+test_layers_filter_can_zero (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ DEBUG_FUNCTION;
+ return next_ops->can_zero (nxdata);
+}
+
+static int
+test_layers_filter_can_fua (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle)
+{
+ DEBUG_FUNCTION;
+ return next_ops->can_fua (nxdata);
+}
+
+static int
+test_layers_filter_can_multi_conn (struct nbdkit_next_ops *next_ops,
+ void *nxdata,
+ void *handle)
+{
+ DEBUG_FUNCTION;
+ return next_ops->can_multi_conn (nxdata);
+}
+
+static int
+test_layers_filter_can_extents (struct nbdkit_next_ops *next_ops,
+ void *nxdata,
+ void *handle)
+{
+ DEBUG_FUNCTION;
+ return next_ops->can_extents (nxdata);
+}
+
+static int
+test_layers_filter_pread (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, void *buf,
+ uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ DEBUG_FUNCTION;
+ return next_ops->pread (nxdata, buf, count, offset, flags, err);
+}
+
+static int
+test_layers_filter_pwrite (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle,
+ const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ DEBUG_FUNCTION;
+ return next_ops->pwrite (nxdata, buf, count, offset, flags, err);
+}
+
+static int
+test_layers_filter_flush (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle,
+ uint32_t flags, int *err)
+{
+ DEBUG_FUNCTION;
+ return next_ops->flush (nxdata, flags, err);
+}
+
+static int
+test_layers_filter_trim (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ DEBUG_FUNCTION;
+ return next_ops->trim (nxdata, count, offset, flags, err);
+}
+
+static int
+test_layers_filter_zero (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset,
+ uint32_t flags, int *err)
+{
+ DEBUG_FUNCTION;
+ return next_ops->zero (nxdata, count, offset, flags, err);
+}
+
+static int
+test_layers_filter_extents (struct nbdkit_next_ops *next_ops, void *nxdata,
+ void *handle, uint32_t count, uint64_t offset,
+ uint32_t flags, struct nbdkit_extents *extents,
+ int *err)
+{
+ DEBUG_FUNCTION;
+ return next_ops->extents (nxdata, count, offset, flags, extents, err);
+}
+
+static struct nbdkit_filter filter = {
+ .name = "testlayers" layer,
+ .version = PACKAGE_VERSION,
+ .load = test_layers_filter_load,
+ .unload = test_layers_filter_unload,
+ .config = test_layers_filter_config,
+ .config_complete = test_layers_filter_config_complete,
+ .config_help = test_layers_filter_config_help,
+ .open = test_layers_filter_open,
+ .close = test_layers_filter_close,
+ .prepare = test_layers_filter_prepare,
+ .finalize = test_layers_filter_finalize,
+ .get_size = test_layers_filter_get_size,
+ .can_write = test_layers_filter_can_write,
+ .can_flush = test_layers_filter_can_flush,
+ .is_rotational = test_layers_filter_is_rotational,
+ .can_trim = test_layers_filter_can_trim,
+ .can_zero = test_layers_filter_can_zero,
+ .can_fua = test_layers_filter_can_fua,
+ .can_multi_conn = test_layers_filter_can_multi_conn,
+ .can_extents = test_layers_filter_can_extents,
+ .pread = test_layers_filter_pread,
+ .pwrite = test_layers_filter_pwrite,
+ .flush = test_layers_filter_flush,
+ .trim = test_layers_filter_trim,
+ .zero = test_layers_filter_zero,
+ .extents = test_layers_filter_extents,
+};
+
+NBDKIT_REGISTER_FILTER(filter)
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <string.h>
+
+#define NBDKIT_API_VERSION 2
+#include <nbdkit-plugin.h>
+
+#define THREAD_MODEL NBDKIT_THREAD_MODEL_PARALLEL
+
+#define DEBUG_FUNCTION nbdkit_debug ("%s", __func__)
+
+static void
+test_layers_plugin_load (void)
+{
+ DEBUG_FUNCTION;
+}
+
+static void
+test_layers_plugin_unload (void)
+{
+ DEBUG_FUNCTION;
+}
+
+static int
+test_layers_plugin_config (const char *key, const char *value)
+{
+ DEBUG_FUNCTION;
+ return 0;
+}
+
+static int
+test_layers_plugin_config_complete (void)
+{
+ DEBUG_FUNCTION;
+ return 0;
+}
+
+#define test_layers_plugin_config_help "test_layers_plugin_config_help"
+
+static void *
+test_layers_plugin_open (int readonly)
+{
+ static int handle;
+
+ DEBUG_FUNCTION;
+ return &handle;
+}
+
+static void
+test_layers_plugin_close (void *handle)
+{
+ DEBUG_FUNCTION;
+}
+
+static int64_t
+test_layers_plugin_get_size (void *handle)
+{
+ DEBUG_FUNCTION;
+ return 1024;
+}
+
+static int
+test_layers_plugin_can_write (void *handle)
+{
+ DEBUG_FUNCTION;
+ return 1;
+}
+
+static int
+test_layers_plugin_can_flush (void *handle)
+{
+ DEBUG_FUNCTION;
+ return 1;
+}
+
+static int
+test_layers_plugin_is_rotational (void *handle)
+{
+ DEBUG_FUNCTION;
+ return 1;
+}
+
+static int
+test_layers_plugin_can_trim (void *handle)
+{
+ DEBUG_FUNCTION;
+ return 1;
+}
+
+static int
+test_layers_plugin_can_zero (void *handle)
+{
+ DEBUG_FUNCTION;
+ return 1;
+}
+
+static int
+test_layers_plugin_can_fua (void *handle)
+{
+ DEBUG_FUNCTION;
+ return NBDKIT_FUA_NATIVE;
+}
+
+static int
+test_layers_plugin_can_multi_conn (void *handle)
+{
+ DEBUG_FUNCTION;
+ return 1;
+}
+
+static int
+test_layers_plugin_can_extents (void *handle)
+{
+ DEBUG_FUNCTION;
+ return 1;
+}
+
+static int
+test_layers_plugin_pread (void *handle,
+ void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ DEBUG_FUNCTION;
+ memset (buf, 0, count);
+ return 0;
+}
+
+static int
+test_layers_plugin_pwrite (void *handle,
+ const void *buf, uint32_t count, uint64_t offset,
+ uint32_t flags)
+{
+ DEBUG_FUNCTION;
+ return 0;
+}
+
+static int
+test_layers_plugin_flush (void *handle, uint32_t flags)
+{
+ DEBUG_FUNCTION;
+ return 0;
+}
+
+static int
+test_layers_plugin_trim (void *handle,
+ uint32_t count, uint64_t offset, uint32_t flags)
+{
+ DEBUG_FUNCTION;
+ return 0;
+}
+
+static int
+test_layers_plugin_zero (void *handle,
+ uint32_t count, uint64_t offset, uint32_t flags)
+{
+ DEBUG_FUNCTION;
+ return 0;
+}
+
+static int
+test_layers_plugin_extents (void *handle,
+ uint32_t count, uint64_t offset, uint32_t flags,
+ struct nbdkit_extents *extents)
+{
+ DEBUG_FUNCTION;
+ return 0;
+}
+
+static struct nbdkit_plugin plugin = {
+ .name = "testlayersplugin",
+ .version = PACKAGE_VERSION,
+ .load = test_layers_plugin_load,
+ .unload = test_layers_plugin_unload,
+ .config = test_layers_plugin_config,
+ .config_complete = test_layers_plugin_config_complete,
+ .config_help = test_layers_plugin_config_help,
+ .open = test_layers_plugin_open,
+ .close = test_layers_plugin_close,
+ .get_size = test_layers_plugin_get_size,
+ .can_write = test_layers_plugin_can_write,
+ .can_flush = test_layers_plugin_can_flush,
+ .is_rotational = test_layers_plugin_is_rotational,
+ .can_trim = test_layers_plugin_can_trim,
+ .can_zero = test_layers_plugin_can_zero,
+ .can_fua = test_layers_plugin_can_fua,
+ .can_multi_conn = test_layers_plugin_can_multi_conn,
+ .can_extents = test_layers_plugin_can_extents,
+ .pread = test_layers_plugin_pread,
+ .pwrite = test_layers_plugin_pwrite,
+ .flush = test_layers_plugin_flush,
+ .trim = test_layers_plugin_trim,
+ .zero = test_layers_plugin_zero,
+ .extents = test_layers_plugin_extents,
+ /* In this plugin, errno is preserved properly along error return
+ * paths from failed system calls.
+ */
+ .errno_is_preserved = 1,
+};
+
+NBDKIT_REGISTER_PLUGIN(plugin)
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* This test constructs a plugin and 3 layers of filters:
+ *
+ * NBD ┌─────────┐ ┌─────────┐ ┌─────────┐ ┌────────┐
+ * client ───▶│ filter3 │───▶│ filter2 │───▶│ filter1 │───▶│ plugin │
+ * request └─────────┘ └─────────┘ └─────────┘ └────────┘
+ *
+ * We then run every possible request and ensure that each method in
+ * each filter and the plugin is called in the right order. This
+ * cannot be done with libguestfs or qemu-io, instead we must make NBD
+ * client requests over a socket directly.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/wait.h>
+
+#include <pthread.h>
+
+#include "byte-swapping.h"
+#include "exit-with-parent.h"
+#include "protocol.h"
+
+/* Declare program_name. */
+#if HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME == 1
+#include <errno.h>
+#define program_name program_invocation_short_name
+#else
+#define program_name "nbdkit"
+#endif
+
+static void *start_log_capture (void *);
+static void log_verify_seen (const char *msg);
+static void log_verify_seen_in_order (const char *msg, ...)
+ __attribute__((sentinel));
+static void log_free (void);
+
+int
+main (int argc, char *argv[])
+{
+ pid_t pid;
+ int sfd[2];
+ int pfd[2];
+ int err;
+ pthread_t thread;
+ int sock;
+ struct new_handshake handshake;
+ uint32_t cflags;
+ struct new_option option;
+ struct new_handshake_finish handshake_finish;
+ uint16_t eflags;
+ struct request request;
+ struct simple_reply reply;
+ char data[512];
+
+#ifndef HAVE_EXIT_WITH_PARENT
+ printf ("%s: this test requires --exit-with-parent functionality\n",
+ program_name);
+ exit (77);
+#endif
+
+ /* Socket for communicating with nbdkit. */
+ if (socketpair (AF_LOCAL, SOCK_STREAM, 0, sfd) == -1) {
+ perror ("socketpair");
+ exit (EXIT_FAILURE);
+ }
+ sock = sfd[0];
+
+ /* Start nbdkit. */
+ if (pipe (pfd) == -1) { /* Pipe for log messages. */
+ perror ("pipe");
+ exit (EXIT_FAILURE);
+ }
+ pid = fork ();
+ if (pid == 0) { /* Child. */
+ dup2 (sfd[1], 0);
+ dup2 (sfd[1], 1);
+ close (pfd[0]);
+ dup2 (pfd[1], 2);
+ close (pfd[1]);
+ execlp ("nbdkit", "nbdkit",
+ "--exit-with-parent",
+ "-fvns",
+ /* Because of asynchronous shutdown with threads, finalize
+ * isn't reliably called unless we disable parallel.
+ */
+ "-t", "1",
+ "--filter", ".libs/test-layers-filter3.so",
+ "--filter", ".libs/test-layers-filter2.so",
+ "--filter", ".libs/test-layers-filter1.so",
+ ".libs/test-layers-plugin.so",
+ "foo=bar",
+ NULL);
+ perror ("exec: nbdkit");
+ _exit (EXIT_FAILURE);
+ }
+
+ /* Parent (test). */
+ close (sfd[1]);
+ close (pfd[1]);
+
+ fprintf (stderr, "%s: nbdkit running\n", program_name);
+
+ /* Start a thread which will just listen on the pipe and
+ * place the log messages in a memory buffer.
+ */
+ err = pthread_create (&thread, NULL, start_log_capture, &pfd[0]);
+ if (err) {
+ errno = err;
+ perror ("pthread_create");
+ exit (EXIT_FAILURE);
+ }
+ err = pthread_detach (thread);
+ if (err) {
+ errno = err;
+ perror ("pthread_detach");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Note for the purposes of this test we're not very careful about
+ * checking for errors (except for the bare minimum) or handling the
+ * full NBD protocol. This is because we can be certain about
+ * exactly which server we are connecting to and what it supports.
+ * Don't use this as example code for connecting to NBD servers.
+ *
+ * Expect to receive newstyle handshake.
+ */
+ if (recv (sock, &handshake, sizeof handshake,
+ MSG_WAITALL) != sizeof handshake) {
+ perror ("recv: handshake");
+ exit (EXIT_FAILURE);
+ }
+ if (memcmp (handshake.nbdmagic, "NBDMAGIC", 8) != 0 ||
+ be64toh (handshake.version) != NEW_VERSION) {
+ fprintf (stderr, "%s: unexpected NBDMAGIC or version\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ /* Send client flags. */
+ cflags = htobe32 (be16toh (handshake.gflags));
+ if (send (sock, &cflags, sizeof cflags, 0) != sizeof cflags) {
+ perror ("send: flags");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Send NBD_OPT_EXPORT_NAME with no export name. */
+ option.version = htobe64 (NEW_VERSION);
+ option.option = htobe32 (NBD_OPT_EXPORT_NAME);
+ option.optlen = htobe32 (0);
+ if (send (sock, &option, sizeof option, 0) != sizeof option) {
+ perror ("send: option");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Receive handshake finish. */
+ if (recv (sock, &handshake_finish, sizeof handshake_finish - 124,
+ MSG_WAITALL) != sizeof handshake_finish - 124) {
+ perror ("recv: handshake finish");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Verify export size (see tests/test-layers-plugin.c). */
+ if (be64toh (handshake_finish.exportsize) != 1024) {
+ fprintf (stderr, "%s: unexpected export size %" PRIu64 " != 1024\n",
+ program_name, be64toh (handshake_finish.exportsize));
+ exit (EXIT_FAILURE);
+ }
+
+ /* Verify export flags. */
+ eflags = be16toh (handshake_finish.eflags);
+ if ((eflags & NBD_FLAG_READ_ONLY) != 0) {
+ fprintf (stderr, "%s: unexpected eflags: NBD_FLAG_READ_ONLY not clear\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+ if ((eflags & NBD_FLAG_SEND_FLUSH) == 0) {
+ fprintf (stderr, "%s: unexpected eflags: NBD_FLAG_SEND_FLUSH not set\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+ if ((eflags & NBD_FLAG_SEND_FUA) == 0) {
+ fprintf (stderr, "%s: unexpected eflags: NBD_FLAG_SEND_FUA not set\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+ if ((eflags & NBD_FLAG_ROTATIONAL) == 0) {
+ fprintf (stderr, "%s: unexpected eflags: NBD_FLAG_ROTATIONAL not set\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+ if ((eflags & NBD_FLAG_SEND_TRIM) == 0) {
+ fprintf (stderr, "%s: unexpected eflags: NBD_FLAG_SEND_TRIM not set\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+ if ((eflags & NBD_FLAG_SEND_WRITE_ZEROES) == 0) {
+ fprintf (stderr,
+ "%s: unexpected eflags: NBD_FLAG_SEND_WRITE_ZEROES not set\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ /* Sleep briefly to allow the log to catch up. */
+ sleep (1);
+
+ /* Verify expected log messages were seen during the handshake and
+ * option negotiation phases.
+ */
+
+ /* Plugin and 3 filters should run the load method in any order. */
+ log_verify_seen ("test_layers_plugin_load");
+ log_verify_seen ("filter1: test_layers_filter_load");
+ log_verify_seen ("filter2: test_layers_filter_load");
+ log_verify_seen ("filter3: test_layers_filter_load");
+
+ /* config methods called in order. */
+ log_verify_seen_in_order
+ ("testlayersfilter3: config key=foo, value=bar",
+ "filter3: test_layers_filter_config",
+ "testlayersfilter2: config key=foo, value=bar",
+ "filter2: test_layers_filter_config",
+ "testlayersfilter1: config key=foo, value=bar",
+ "filter1: test_layers_filter_config",
+ "testlayersplugin: config key=foo, value=bar",
+ "test_layers_plugin_config",
+ NULL);
+
+ /* config_complete methods called in order. */
+ log_verify_seen_in_order
+ ("testlayersfilter3: config_complete",
+ "filter3: test_layers_filter_config_complete",
+ "testlayersfilter2: config_complete",
+ "filter2: test_layers_filter_config_complete",
+ "testlayersfilter1: config_complete",
+ "filter1: test_layers_filter_config_complete",
+ "testlayersplugin: config_complete",
+ "test_layers_plugin_config_complete",
+ NULL);
+
+ /* open methods called in order. */
+ log_verify_seen_in_order
+ ("testlayersfilter3: open readonly=0",
+ "filter3: test_layers_filter_open",
+ "testlayersfilter2: open readonly=0",
+ "filter2: test_layers_filter_open",
+ "testlayersfilter1: open readonly=0",
+ "filter1: test_layers_filter_open",
+ "testlayersplugin: open readonly=0",
+ "test_layers_plugin_open",
+ NULL);
+
+ /* prepare methods called in order.
+ *
+ * Note that prepare methods only exist for filters, and they must
+ * be called from inner to outer (but finalize methods below are
+ * called the other way around).
+ */
+ log_verify_seen_in_order
+ ("filter1: test_layers_filter_prepare",
+ "filter2: test_layers_filter_prepare",
+ "filter3: test_layers_filter_prepare",
+ NULL);
+
+ /* get_size methods called in order. */
+ log_verify_seen_in_order
+ ("filter3: test_layers_filter_get_size",
+ "filter2: test_layers_filter_get_size",
+ "filter1: test_layers_filter_get_size",
+ "test_layers_plugin_get_size",
+ NULL);
+
+ /* can_* / is_* methods called in order. */
+ log_verify_seen_in_order
+ ("filter3: test_layers_filter_can_write",
+ "filter2: test_layers_filter_can_write",
+ "filter1: test_layers_filter_can_write",
+ "test_layers_plugin_can_write",
+ NULL);
+ log_verify_seen_in_order
+ ("filter3: test_layers_filter_can_zero",
+ "filter2: test_layers_filter_can_zero",
+ "filter1: test_layers_filter_can_zero",
+ "test_layers_plugin_can_zero",
+ NULL);
+ log_verify_seen_in_order
+ ("filter3: test_layers_filter_can_trim",
+ "filter2: test_layers_filter_can_trim",
+ "filter1: test_layers_filter_can_trim",
+ "test_layers_plugin_can_trim",
+ NULL);
+ log_verify_seen_in_order
+ ("filter3: test_layers_filter_can_fua",
+ "filter2: test_layers_filter_can_fua",
+ "filter1: test_layers_filter_can_fua",
+ "test_layers_plugin_can_fua",
+ NULL);
+ log_verify_seen_in_order
+ ("filter3: test_layers_filter_can_flush",
+ "filter2: test_layers_filter_can_flush",
+ "filter1: test_layers_filter_can_flush",
+ "test_layers_plugin_can_flush",
+ NULL);
+ log_verify_seen_in_order
+ ("filter3: test_layers_filter_is_rotational",
+ "filter2: test_layers_filter_is_rotational",
+ "filter1: test_layers_filter_is_rotational",
+ "test_layers_plugin_is_rotational",
+ NULL);
+ log_verify_seen_in_order
+ ("filter3: test_layers_filter_can_multi_conn",
+ "filter2: test_layers_filter_can_multi_conn",
+ "filter1: test_layers_filter_can_multi_conn",
+ "test_layers_plugin_can_multi_conn",
+ NULL);
+ log_verify_seen_in_order
+ ("filter3: test_layers_filter_can_extents",
+ "filter2: test_layers_filter_can_extents",
+ "filter1: test_layers_filter_can_extents",
+ "test_layers_plugin_can_extents",
+ NULL);
+
+ fprintf (stderr, "%s: protocol connected\n", program_name);
+
+ /* Send one command of each type. */
+ request.magic = htobe32 (NBD_REQUEST_MAGIC);
+ request.handle = htobe64 (0);
+
+ request.type = htobe16 (NBD_CMD_READ);
+ request.offset = htobe64 (0);
+ request.count = htobe32 (512);
+ request.flags = htobe16 (0);
+ if (send (sock, &request, sizeof request, 0) != sizeof request) {
+ perror ("send: NBD_CMD_READ");
+ exit (EXIT_FAILURE);
+ }
+ if (recv (sock, &reply, sizeof reply, MSG_WAITALL) != sizeof reply) {
+ perror ("recv: NBD_CMD_READ reply");
+ exit (EXIT_FAILURE);
+ }
+ if (reply.error != NBD_SUCCESS) {
+ fprintf (stderr, "%s: NBD_CMD_READ failed with %d\n",
+ program_name, reply.error);
+ exit (EXIT_FAILURE);
+ }
+ if (recv (sock, data, sizeof data, MSG_WAITALL) != sizeof data) {
+ perror ("recv: NBD_CMD_READ data");
+ exit (EXIT_FAILURE);
+ }
+
+ sleep (1);
+ log_verify_seen_in_order
+ ("testlayersfilter3: pread count=512 offset=0 flags=0x0",
+ "filter3: test_layers_filter_pread",
+ "testlayersfilter2: pread count=512 offset=0 flags=0x0",
+ "filter2: test_layers_filter_pread",
+ "testlayersfilter1: pread count=512 offset=0 flags=0x0",
+ "filter1: test_layers_filter_pread",
+ "testlayersplugin: debug: pread count=512 offset=0",
+ "test_layers_plugin_pread",
+ NULL);
+
+ request.type = htobe16 (NBD_CMD_WRITE);
+ request.offset = htobe64 (0);
+ request.count = htobe32 (512);
+ request.flags = htobe16 (0);
+ if (send (sock, &request, sizeof request, 0) != sizeof request) {
+ perror ("send: NBD_CMD_WRITE");
+ exit (EXIT_FAILURE);
+ }
+ if (send (sock, data, sizeof data, 0) != sizeof data) {
+ perror ("send: NBD_CMD_WRITE data");
+ exit (EXIT_FAILURE);
+ }
+ if (recv (sock, &reply, sizeof reply, MSG_WAITALL) != sizeof reply) {
+ perror ("recv: NBD_CMD_WRITE");
+ exit (EXIT_FAILURE);
+ }
+ if (reply.error != NBD_SUCCESS) {
+ fprintf (stderr, "%s: NBD_CMD_WRITE failed with %d\n",
+ program_name, reply.error);
+ exit (EXIT_FAILURE);
+ }
+
+ sleep (1);
+ log_verify_seen_in_order
+ ("testlayersfilter3: pwrite count=512 offset=0 flags=0x0",
+ "filter3: test_layers_filter_pwrite",
+ "testlayersfilter2: pwrite count=512 offset=0 flags=0x0",
+ "filter2: test_layers_filter_pwrite",
+ "testlayersfilter1: pwrite count=512 offset=0 flags=0x0",
+ "filter1: test_layers_filter_pwrite",
+ "testlayersplugin: debug: pwrite count=512 offset=0",
+ "test_layers_plugin_pwrite",
+ NULL);
+
+ request.type = htobe16 (NBD_CMD_FLUSH);
+ request.offset = htobe64 (0);
+ request.count = htobe32 (0);
+ request.flags = htobe16 (0);
+ if (send (sock, &request, sizeof request, 0) != sizeof request) {
+ perror ("send: NBD_CMD_FLUSH");
+ exit (EXIT_FAILURE);
+ }
+ if (recv (sock, &reply, sizeof reply, MSG_WAITALL) != sizeof reply) {
+ perror ("recv: NBD_CMD_FLUSH");
+ exit (EXIT_FAILURE);
+ }
+ if (reply.error != NBD_SUCCESS) {
+ fprintf (stderr, "%s: NBD_CMD_FLUSH failed with %d\n",
+ program_name, reply.error);
+ exit (EXIT_FAILURE);
+ }
+
+ sleep (1);
+ log_verify_seen_in_order
+ ("testlayersfilter3: flush flags=0x0",
+ "filter3: test_layers_filter_flush",
+ "testlayersfilter2: flush flags=0x0",
+ "filter2: test_layers_filter_flush",
+ "testlayersfilter1: flush flags=0x0",
+ "filter1: test_layers_filter_flush",
+ "testlayersplugin: debug: flush",
+ "test_layers_plugin_flush",
+ NULL);
+
+ request.type = htobe16 (NBD_CMD_TRIM);
+ request.offset = htobe64 (0);
+ request.count = htobe32 (512);
+ request.flags = htobe16 (0);
+ if (send (sock, &request, sizeof request, 0) != sizeof request) {
+ perror ("send: NBD_CMD_TRIM");
+ exit (EXIT_FAILURE);
+ }
+ if (recv (sock, &reply, sizeof reply, MSG_WAITALL) != sizeof reply) {
+ perror ("recv: NBD_CMD_TRIM");
+ exit (EXIT_FAILURE);
+ }
+ if (reply.error != NBD_SUCCESS) {
+ fprintf (stderr, "%s: NBD_CMD_TRIM failed with %d\n",
+ program_name, reply.error);
+ exit (EXIT_FAILURE);
+ }
+
+ sleep (1);
+ log_verify_seen_in_order
+ ("testlayersfilter3: trim count=512 offset=0 flags=0x0",
+ "filter3: test_layers_filter_trim",
+ "testlayersfilter2: trim count=512 offset=0 flags=0x0",
+ "filter2: test_layers_filter_trim",
+ "testlayersfilter1: trim count=512 offset=0 flags=0x0",
+ "filter1: test_layers_filter_trim",
+ "testlayersplugin: debug: trim count=512 offset=0",
+ "test_layers_plugin_trim",
+ NULL);
+
+ request.type = htobe16 (NBD_CMD_WRITE_ZEROES);
+ request.offset = htobe64 (0);
+ request.count = htobe32 (512);
+ request.flags = htobe16 (0);
+ if (send (sock, &request, sizeof request, 0) != sizeof request) {
+ perror ("send: NBD_CMD_WRITE_ZEROES");
+ exit (EXIT_FAILURE);
+ }
+ if (recv (sock, &reply, sizeof reply, MSG_WAITALL) != sizeof reply) {
+ perror ("recv: NBD_CMD_WRITE_ZEROES");
+ exit (EXIT_FAILURE);
+ }
+ if (reply.error != NBD_SUCCESS) {
+ fprintf (stderr, "%s: NBD_CMD_WRITE_ZEROES failed with %d\n",
+ program_name, reply.error);
+ exit (EXIT_FAILURE);
+ }
+
+ sleep (1);
+ log_verify_seen_in_order
+ ("testlayersfilter3: zero count=512 offset=0 flags=0x1",
+ "filter3: test_layers_filter_zero",
+ "testlayersfilter2: zero count=512 offset=0 flags=0x1",
+ "filter2: test_layers_filter_zero",
+ "testlayersfilter1: zero count=512 offset=0 flags=0x1",
+ "filter1: test_layers_filter_zero",
+ "testlayersplugin: debug: zero count=512 offset=0 may_trim=1 fua=0",
+ "test_layers_plugin_zero",
+ NULL);
+
+ /* XXX We should test NBD_CMD_BLOCK_STATUS here. However it
+ * requires that we negotiate structured replies and base:allocation
+ * in the handshake, and the format of the reply is more complex
+ * than what we expect in this naive test.
+ */
+
+ /* Close the connection. */
+ fprintf (stderr, "%s: closing the connection\n", program_name);
+ request.type = htobe16 (NBD_CMD_DISC);
+ request.offset = htobe64 (0);
+ request.count = htobe32 (0);
+ request.flags = htobe16 (0);
+ if (send (sock, &request, sizeof request, 0) != sizeof request) {
+ perror ("send: NBD_CMD_DISC");
+ exit (EXIT_FAILURE);
+ }
+ /* (no reply from NBD_CMD_DISC) */
+ close (sock);
+
+ /* Clean up the child process. */
+ if (waitpid (pid, NULL, 0) == -1)
+ perror ("waitpid");
+
+ /* finalize methods called in reverse order of prepare */
+ sleep (1);
+ log_verify_seen_in_order
+ ("filter3: test_layers_filter_finalize",
+ "filter2: test_layers_filter_finalize",
+ "filter1: test_layers_filter_finalize",
+ NULL);
+
+ /* close methods called in order */
+ log_verify_seen_in_order
+ ("filter3: test_layers_filter_close",
+ "filter2: test_layers_filter_close",
+ "filter1: test_layers_filter_close",
+ "test_layers_plugin_close",
+ NULL);
+
+ /* unload methods should be run in any order. */
+ log_verify_seen ("test_layers_plugin_unload");
+ log_verify_seen ("filter1: test_layers_filter_unload");
+ log_verify_seen ("filter2: test_layers_filter_unload");
+ log_verify_seen ("filter3: test_layers_filter_unload");
+
+ log_free ();
+
+ exit (EXIT_SUCCESS);
+}
+
+/* The log from nbdkit is captured in a separate thread. */
+static char *log = NULL;
+static size_t log_len = 0;
+static pthread_mutex_t log_lock = PTHREAD_MUTEX_INITIALIZER;
+
+static void *
+start_log_capture (void *arg)
+{
+ int fd = *(int *)arg;
+ size_t allocated = 0;
+ ssize_t r;
+
+ for (;;) {
+ pthread_mutex_lock (&log_lock);
+ if (allocated <= log_len) {
+ allocated += 4096;
+ log = realloc (log, allocated);
+ if (log == NULL) {
+ perror ("log: realloc");
+ exit (EXIT_FAILURE);
+ }
+ }
+ pthread_mutex_unlock (&log_lock);
+
+ r = read (fd, &log[log_len], allocated-log_len);
+ if (r == -1) {
+ perror ("log: read");
+ exit (EXIT_FAILURE);
+ }
+ if (r == 0)
+ break;
+
+ /* Dump the log as we receive it to stderr, for debugging. */
+ if (write (2, &log[log_len], r) == -1)
+ perror ("log: write");
+
+ pthread_mutex_lock (&log_lock);
+ log_len += r;
+ pthread_mutex_unlock (&log_lock);
+ }
+
+ /* nbdkit closed the connection. */
+ pthread_exit (NULL);
+}
+
+/* These functions are called from the main thread to verify messages
+ * appeared as expected in the log.
+ *
+ * NB: The log buffer is NOT \0-terminated.
+ */
+
+static void no_message_error (const char *msg) __attribute__((noreturn));
+
+static void
+no_message_error (const char *msg)
+{
+ fprintf (stderr, "%s: did not find expected message \"%s\"\n",
+ program_name, msg);
+ exit (EXIT_FAILURE);
+}
+
+static void
+log_verify_seen (const char *msg)
+{
+ pthread_mutex_lock (&log_lock);
+ if (memmem (log, log_len, msg, strlen (msg)) == NULL)
+ no_message_error (msg);
+ pthread_mutex_unlock (&log_lock);
+}
+
+static void messages_out_of_order (const char *msg1, const char *msg2)
+ __attribute__((noreturn));
+
+static void
+messages_out_of_order (const char *msg1, const char *msg2)
+{
+ fprintf (stderr, "%s: message \"%s\" expected before message \"%s\"\n",
+ program_name, msg1, msg2);
+ exit (EXIT_FAILURE);
+}
+
+static void
+log_verify_seen_in_order (const char *msg, ...)
+{
+ va_list args;
+ void *prev, *curr;
+ const char *prev_msg, *curr_msg;
+
+ pthread_mutex_lock (&log_lock);
+
+ prev = memmem (log, log_len, msg, strlen (msg));
+ if (prev == NULL) no_message_error (msg);
+ prev_msg = msg;
+
+ va_start (args, msg);
+ while ((curr_msg = va_arg (args, char *)) != NULL) {
+ curr = memmem (log, log_len, curr_msg, strlen (curr_msg));
+ if (curr == NULL) no_message_error (curr_msg);
+ if (prev > curr) messages_out_of_order (prev_msg, curr_msg);
+ prev_msg = curr_msg;
+ prev = curr;
+ }
+ va_end (args);
+
+ pthread_mutex_unlock (&log_lock);
+}
+
+static void
+log_free (void)
+{
+ pthread_mutex_lock (&log_lock);
+ free (log);
+ log = NULL;
+ log_len = 0;
+ pthread_mutex_unlock (&log_lock);
+}
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+files="test-layers.out"
+rm -f $files
+cleanup_fn rm -f $files
+
+cmd="nbdkit --filter=.libs/test-layers-filter3.so --filter=.libs/test-layers-filter2.so --filter=.libs/test-layers-filter1.so .libs/test-layers-plugin.so"
+
+$cmd --help > test-layers.out
+cat test-layers.out ||:
+grep test_layers_filter3_config_help test-layers.out
+grep test_layers_filter2_config_help test-layers.out
+grep test_layers_filter1_config_help test-layers.out
+grep test_layers_plugin_config_help test-layers.out
+
+$cmd --dump-plugin > test-layers.out
+cat test-layers.out ||:
+grep name=testlayersplugin test-layers.out
+grep has_load=1 test-layers.out
+grep has_zero=1 test-layers.out
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the linuxdisk plugin with captive nbdkit, as described
+# in the man page.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-img --version
+
+files="linuxdisk-copy-out.img
+ linuxdisk-copy-out.test1 linuxdisk-copy-out.test2
+ linuxdisk-copy-out.test3 linuxdisk-copy-out.test4"
+rm -f $files
+cleanup_fn rm -f $files
+
+nbdkit -f -v -U - \
+ --filter=partition \
+ linuxdisk $srcdir/../plugins partition=1 label=ROOT \
+ --run 'qemu-img convert $nbd linuxdisk-copy-out.img'
+
+# Check the disk content.
+guestfish --ro -a linuxdisk-copy-out.img -m /dev/sda <<EOF
+# Check some known files and directories exist.
+ ll /
+ ll /linuxdisk
+ is-dir /linuxdisk
+ is-file /linuxdisk/Makefile.am
+
+# This reads out all the directory entries and all file contents.
+ tar-out / - | cat >/dev/null
+
+# Download some files and compare to local copies.
+ download /linuxdisk/Makefile linuxdisk-copy-out.test1
+ download /linuxdisk/Makefile.am linuxdisk-copy-out.test2
+ download /linuxdisk/nbdkit-linuxdisk-plugin.pod linuxdisk-copy-out.test3
+ download /linuxdisk/filesystem.c linuxdisk-copy-out.test4
+EOF
+
+# Compare downloaded files to local versions.
+cmp linuxdisk-copy-out.test1 $srcdir/../plugins/linuxdisk/Makefile
+cmp linuxdisk-copy-out.test2 $srcdir/../plugins/linuxdisk/Makefile.am
+cmp linuxdisk-copy-out.test3 $srcdir/../plugins/linuxdisk/nbdkit-linuxdisk-plugin.pod
+cmp linuxdisk-copy-out.test4 $srcdir/../plugins/linuxdisk/filesystem.c
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the linuxdisk plugin.
+
+source ./functions.sh
+set -e
+set -x
+
+requires mkfifo --version
+
+sock=`mktemp -u`
+d=linuxdisk.d
+rm -rf $d
+cleanup_fn rm -rf $d
+cleanup_fn rm -f $sock
+
+# Create a test directory with some regular files, subdirectories and
+# special files.
+mkdir $d
+mkfifo $d/fifo
+mkdir $d/sub
+cp $srcdir/Makefile.am $d/sub/Makefile.am
+ln $d/sub/Makefile.am $d/sub/hardlink
+ln -s $d/sub/Makefile.am $d/sub/symlink
+
+# It would be nice to use the Unix domain socket to test that the
+# socket gets created, but in fact that won't work because this socket
+# isn't created until after the plugin creates the virtual disk.
+start_nbdkit -P $d/linuxdisk.pid \
+ -U $sock \
+ linuxdisk $d
+
+# Check the disk content.
+guestfish --ro --format=raw -a "nbd://?socket=$sock" -m /dev/sda1 <<EOF
+ ll /
+ ll /sub
+
+# Check regular files exist.
+ is-file /sub/Makefile.am
+ is-file /sub/hardlink
+# XXX Test sparse files in future.
+
+# Check the specials exist.
+ is-fifo /fifo
+ is-symlink /sub/symlink
+# XXX Test sockets, etc. in future.
+
+# Check hard linked files.
+ lstatns /sub/Makefile.am | cat > $d/nlink.1
+ lstatns /sub/hardlink | cat > $d/nlink.2
+
+# This reads out all the directory entries and all file contents.
+ tar-out / - | cat >/dev/null
+
+# Download file and compare to local copy.
+ download /sub/Makefile.am $d/Makefile.am
+EOF
+
+# Check the two hard linked files have st_nlink == 2.
+grep "st_nlink: 2" $d/nlink.1
+grep "st_nlink: 2" $d/nlink.2
+
+# Compare downloaded file to local version.
+cmp $d/Makefile.am $srcdir/Makefile.am
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+
+sock=`mktemp -u`
+files="log.img log.log $sock log.pid"
+rm -f $files
+
+# Test that qemu-io works
+truncate -s 10M log.img
+if ! qemu-io -f raw -c 'w 1M 2M' log.img; then
+ echo "$0: missing or broken qemu-io"
+ exit 77
+fi
+
+# Run nbdkit with logging enabled to file.
+echo '# My log' > log.log
+start_nbdkit -P log.pid -U $sock --filter=log file log.img \
+ logfile=log.log logappend=1
+
+# For easier debugging, dump the final log files before removing them
+# on exit.
+cleanup ()
+{
+ echo "Log file contents:"
+ cat log.log
+ rm -f $files
+}
+cleanup_fn cleanup
+
+# Write, then read some data in the file.
+qemu-io -f raw -c 'w -P 11 1M 2M' "nbd+unix://?socket=$sock"
+qemu-io -r -f raw -c 'r -P 11 2M 1M' "nbd+unix://?socket=$sock"
+
+# The log should have been appended, preserving our marker.
+grep '# My log' log.log
+# The log should show a write on connection 1, and read on connection 2.
+grep 'connection=1 Write id=1 offset=0x100000 count=0x200000 ' log.log
+grep 'connection=2 Read id=1 offset=0x200000 count=0x100000 ' log.log
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the memory plugin with the largest possible size supported
+# by qemu and nbdkit.
+
+source ./functions.sh
+set -e
+
+requires qemu-io --version
+
+sock=`mktemp -u`
+files="memory-largest-for-qemu.out memory-largest-for-qemu.pid $sock"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Run nbdkit with memory plugin.
+# size = (2^63-1) & ~511 which is the largest supported by qemu.
+start_nbdkit -P memory-largest-for-qemu.pid -U $sock \
+ memory size=9223372036854775296
+
+# Write some stuff to the beginning, middle and end.
+qemu-io -f raw "nbd+unix://?socket=$sock" \
+ -c 'w -P 1 0 512' \
+ -c 'w -P 2 1000000001 65536' \
+ -c 'w -P 3 9223372036854774784 512'
+
+qemu-io -r -f raw "nbd+unix://?socket=$sock" \
+ -c 'r -v 0 512' | grep -E '^[[:xdigit:]]+:' > memory-largest-for-qemu.out
+if [ "$(cat memory-largest-for-qemu.out)" != "00000000: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000010: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000020: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000030: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000040: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000050: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000060: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000070: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000080: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000090: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+000000a0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+000000b0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+000000c0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+000000d0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+000000e0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+000000f0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000100: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000110: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000120: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000130: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000140: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000150: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000160: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000170: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000180: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+00000190: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+000001a0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+000001b0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+000001c0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+000001d0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+000001e0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................
+000001f0: 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 01 ................" ]
+then
+ echo "$0: unexpected memory:"
+ cat memory-largest-for-qemu.out
+ exit 1
+fi
+
+qemu-io -r -f raw "nbd+unix://?socket=$sock" \
+ -c 'r -v 1000000001 512' | grep -E '^[[:xdigit:]]+:' > memory-largest-for-qemu.out
+if [ "$(cat memory-largest-for-qemu.out)" != "3b9aca01: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9aca11: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9aca21: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9aca31: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9aca41: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9aca51: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9aca61: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9aca71: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9aca81: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9aca91: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acaa1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acab1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acac1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acad1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acae1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acaf1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acb01: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acb11: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acb21: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acb31: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acb41: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acb51: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acb61: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acb71: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acb81: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acb91: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acba1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acbb1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acbc1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acbd1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acbe1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................
+3b9acbf1: 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 02 ................" ]
+then
+ echo "$0: unexpected memory:"
+ cat memory-largest-for-qemu.out
+ exit 1
+fi
+
+# This block of memory was not set, so it should read back as zeroes.
+qemu-io -r -f raw "nbd+unix://?socket=$sock" \
+ -c 'r -v 2000000000 512' | grep -E '^[[:xdigit:]]+:' > memory-largest-for-qemu.out
+if [ "$(cat memory-largest-for-qemu.out)" != "77359400: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359410: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359420: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359430: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359440: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359450: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359460: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359470: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359480: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359490: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+773594a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+773594b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+773594c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+773594d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+773594e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+773594f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359500: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359510: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359520: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359530: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359540: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359550: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359560: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359570: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359580: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+77359590: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+773595a0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+773595b0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+773595c0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+773595d0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+773595e0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................
+773595f0: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 ................" ]
+then
+ echo "$0: unexpected memory:"
+ cat memory-largest-for-qemu.out
+ exit 1
+fi
+
+qemu-io -r -f raw "nbd+unix://?socket=$sock" \
+ -c 'r -v 9223372036854774784 512' | grep -E '^[[:xdigit:]]+:' > memory-largest-for-qemu.out
+if [ "$(cat memory-largest-for-qemu.out)" != "7ffffffffffffc00: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffc10: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffc20: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffc30: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffc40: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffc50: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffc60: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffc70: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffc80: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffc90: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffca0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffcb0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffcc0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffcd0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffce0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffcf0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffd00: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffd10: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffd20: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffd30: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffd40: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffd50: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffd60: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffd70: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffd80: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffd90: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffda0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffdb0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffdc0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffdd0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffde0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................
+7ffffffffffffdf0: 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 03 ................" ]
+then
+ echo "$0: unexpected memory:"
+ cat memory-largest-for-qemu.out
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the memory plugin with the largest possible size supported
+# by nbdkit.
+
+source ./functions.sh
+set -e
+
+requires qemu-io --version
+
+sock=`mktemp -u`
+files="memory-largest.out memory-largest.pid $sock"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Run nbdkit with memory plugin.
+# size = 2^63-1
+start_nbdkit -P memory-largest.pid -U $sock \
+ memory size=9223372036854775807
+
+# qemu cannot open this image!
+#
+# can't open device nbd+unix://?socket=$sock: Could not get image size: File too large
+#
+# Therefore we skip the remainder of this test (in effect, testing
+# only that nbdkit can create the file).
+exit 77
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ char *data;
+
+ if (test_start_nbdkit ("-D", "memory.dir=1",
+ "memory", "size=100M", NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1)
+ exit (EXIT_FAILURE);
+ if (guestfs_mkfs (g, "ext4", "/dev/sda1") == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_mount_options (g, "discard", "/dev/sda1", "/") == -1)
+ exit (EXIT_FAILURE);
+
+#define filename "/hello.txt"
+#define content "hello, people of the world"
+
+ if (guestfs_write (g, filename, content, strlen (content)) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Force write through to and read back from disk. */
+ if (guestfs_sync (g) == -1 || guestfs_drop_caches (g, 3) == -1)
+ exit (EXIT_FAILURE);
+
+ data = guestfs_cat (g, filename);
+ if (!data)
+ exit (EXIT_FAILURE);
+
+ if (strcmp (data, content) != 0) {
+ fprintf (stderr,
+ "%s FAILED: unexpected content of %s file "
+ "(actual: %s, expected: %s)\n",
+ program_name, filename, data, content);
+ exit (EXIT_FAILURE);
+ }
+
+#ifdef GUESTFS_HAVE_FSTRIM
+ /* Delete the file and fstrim to test zeroing/trimming. */
+ if (guestfs_rm (g, filename) == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_fstrim (g, "/", -1) == -1)
+ exit (EXIT_FAILURE);
+#endif
+
+ if (guestfs_shutdown (g) == -1)
+ exit (EXIT_FAILURE);
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ char *data;
+ char *sockarg = NULL;
+ size_t i, size;
+
+ /* If wrapping once is good, why not do it twice! Shows that we can
+ * convert between either style of server options. */
+ if (test_start_nbdkit ("-o", "file", "file-data", NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ if (asprintf (&sockarg, "socket=%s", sock) < 0) {
+ perror ("asprintf");
+ exit (EXIT_FAILURE);
+ }
+ if (test_start_nbdkit ("-e", "wrap", "nbd", sockarg, NULL) == -1)
+ exit (EXIT_FAILURE);
+ free (sockarg);
+
+ if (asprintf (&sockarg, "socket=%s", sock) < 0) {
+ perror ("asprintf");
+ exit (EXIT_FAILURE);
+ }
+ if (test_start_nbdkit ("-o", "nbd", sockarg, "export=wrap", NULL) == -1)
+ exit (EXIT_FAILURE);
+ free (sockarg);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Check the data in the file is \x01-\x08 repeated 512 times. */
+ data = guestfs_pread_device (g, "/dev/sda", 8 * 512, 0, &size);
+ if (!data)
+ exit (EXIT_FAILURE);
+ if (size != 8 * 512) {
+ fprintf (stderr,
+ "%s FAILED: unexpected size (actual: %zu, expected: 512)\n",
+ program_name, size);
+ exit (EXIT_FAILURE);
+ }
+
+ for (i = 0; i < 512 * 8; i += 8) {
+ if (data[i] != 1 || data[i+1] != 2 ||
+ data[i+2] != 3 || data[i+3] != 4 ||
+ data[i+4] != 5 || data[i+5] != 6 ||
+ data[i+6] != 7 || data[i+7] != 8) {
+ fprintf (stderr, "%s FAILED: unexpected data returned at offset %zu\n",
+ program_name, i);
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ free (data);
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+#define EXPORTNAME "/"
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ char *data;
+ size_t i, size;
+
+ if (test_start_nbdkit ("-e", EXPORTNAME,
+ "-n", "file", "file-data", NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Using any exportname causes qemu to use the newstyle protocol. */
+ r = guestfs_add_drive_opts (g, EXPORTNAME,
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Check the data in the file is \x01-\x08 repeated 512 times. */
+ data = guestfs_pread_device (g, "/dev/sda", 8 * 512, 0, &size);
+ if (!data)
+ exit (EXIT_FAILURE);
+ if (size != 8 * 512) {
+ fprintf (stderr,
+ "%s FAILED: unexpected size (actual: %zu, expected: 512)\n",
+ program_name, size);
+ exit (EXIT_FAILURE);
+ }
+
+ for (i = 0; i < 512 * 8; i += 8) {
+ if (data[i] != 1 || data[i+1] != 2 ||
+ data[i+2] != 3 || data[i+3] != 4 ||
+ data[i+4] != 5 || data[i+5] != 6 ||
+ data[i+6] != 7 || data[i+7] != 8) {
+ fprintf (stderr, "%s FAILED: unexpected data returned at offset %zu\n",
+ program_name, i);
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ free (data);
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+
+sock1=`mktemp -u`
+sock2=`mktemp -u`
+sock3=`mktemp -u`
+sock4=`mktemp -u`
+sock5a=`mktemp -u`
+sock5b=`mktemp -u`
+files="nozero1.img nozero1.log $sock1 nozero1.pid
+ nozero2.img nozero2.log $sock2 nozero2.pid
+ nozero3.img nozero3.log $sock3 nozero3.pid
+ nozero4.img nozero4.log $sock4 nozero4.pid
+ nozero5.img nozero5a.log nozero5b.log $sock5a $sock5b
+ nozero5a.pid nozero5b.pid"
+rm -f $files
+
+# Prep images, and check that qemu-io understands the actions we plan on
+# doing, and that zero with trim results in a sparse image.
+for f in {0..1023}; do printf '%1024s' . >> nozero1.img; done
+cp nozero1.img nozero2.img
+cp nozero1.img nozero3.img
+cp nozero1.img nozero4.img
+cp nozero1.img nozero5.img
+if ! qemu-io -f raw -d unmap -c 'w -z -u 0 1M' nozero1.img; then
+ echo "$0: missing or broken qemu-io"
+ rm nozero?.img
+ exit 77
+fi
+if test "$(stat -c %b nozero1.img)" = "$(stat -c %b nozero2.img)"; then
+ echo "$0: can't trim file by writing zeroes"
+ rm nozero?.img
+ exit 77
+fi
+cp nozero2.img nozero1.img
+
+# For easier debugging, dump the final log files before removing them
+# on exit.
+cleanup ()
+{
+ echo "Log 1 file contents:"
+ cat nozero1.log || :
+ echo "Log 2 file contents:"
+ cat nozero2.log || :
+ echo "Log 3 file contents:"
+ cat nozero3.log || :
+ echo "Log 4 file contents:"
+ cat nozero4.log || :
+ echo "Log 5a file contents:"
+ cat nozero5a.log || :
+ echo "Log 5b file contents:"
+ cat nozero5b.log || :
+ rm -f $files
+}
+cleanup_fn cleanup
+
+# Run four parallel nbdkit; to compare the logs and see what changes.
+# 1: unfiltered, to check that qemu-io sends ZERO request and plugin trims
+# 2: log before filter with zeromode=none (default), to ensure no ZERO request
+# 3: log before filter with zeromode=emulate, to ensure ZERO from client
+# 4: log after filter with zeromode=emulate, to ensure no ZERO to plugin
+# 5a/b: both sides of nbd plugin: even though server side does not advertise
+# ZERO, the client side still exposes it, and just skips calling nbd's .zero
+start_nbdkit -P nozero1.pid -U $sock1 --filter=log \
+ file logfile=nozero1.log nozero1.img
+start_nbdkit -P nozero2.pid -U $sock2 --filter=log --filter=nozero \
+ file logfile=nozero2.log nozero2.img
+start_nbdkit -P nozero3.pid -U $sock3 --filter=log --filter=nozero \
+ file logfile=nozero3.log nozero3.img zeromode=emulate
+start_nbdkit -P nozero4.pid -U $sock4 --filter=nozero --filter=log \
+ file logfile=nozero4.log nozero4.img zeromode=emulate
+start_nbdkit -P nozero5a.pid -U $sock5a --filter=log --filter=nozero \
+ file logfile=nozero5a.log nozero5.img
+start_nbdkit -P nozero5b.pid -U $sock5b --filter=log \
+ nbd logfile=nozero5b.log socket=$sock5a
+
+# Perform the zero write.
+qemu-io -f raw -c 'w -z -u 0 1M' "nbd+unix://?socket=$sock1"
+qemu-io -f raw -c 'w -z -u 0 1M' "nbd+unix://?socket=$sock2"
+qemu-io -f raw -c 'w -z -u 0 1M' "nbd+unix://?socket=$sock3"
+qemu-io -f raw -c 'w -z -u 0 1M' "nbd+unix://?socket=$sock4"
+qemu-io -f raw -c 'w -z -u 0 1M' "nbd+unix://?socket=$sock5b"
+
+# Check for expected ZERO vs. WRITE results
+grep 'connection=1 Zero' nozero1.log
+if grep 'connection=1 Zero' nozero2.log; then
+ echo "filter should have prevented zero"
+ exit 1
+fi
+grep 'connection=1 Zero' nozero3.log
+if grep 'connection=1 Zero' nozero4.log; then
+ echo "filter should have converted zero into write"
+ exit 1
+fi
+grep 'connection=1 Zero' nozero5b.log
+if grep 'connection=1 Zero' nozero5a.log; then
+ echo "nbdkit should have converted zero into write before nbd plugin"
+ exit 1
+fi
+
+# Sanity check on contents - all 5 files should read identically
+cmp nozero1.img nozero2.img
+cmp nozero2.img nozero3.img
+cmp nozero3.img nozero4.img
+cmp nozero4.img nozero5.img
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+requires jq --version
+requires qemu-img --version
+requires qemu-img map --help
+
+out="test-null-extents.out"
+expected="test-null-extents.expected"
+files="$out $expected"
+rm -f $files
+cleanup_fn rm -f $files
+
+do_test ()
+{
+ # We use jq to normalize the output and convert it to plain text.
+ nbdkit -U - \
+ null size="$1" \
+ --run 'qemu-img map -f raw --output=json $nbd' |
+ jq -c '.[] | {start:.start, length:.length, data:.data, zero:.zero}' \
+ > $out
+ if ! cmp $out $expected; then
+ echo "$0: output did not match expected data"
+ echo "expected:"
+ cat $expected
+ echo "output:"
+ cat $out
+ exit 1
+ fi
+}
+
+# Non-zero sized null disk.
+cat > $expected <<'EOF'
+{"start":0,"length":65536,"data":false,"zero":true}
+EOF
+do_test 64K
+
+# Zero sized null disk.
+cat > $expected <<'EOF'
+{"start":0,"length":0,"data":false,"zero":false}
+EOF
+do_test 0
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+static char data[257] =
+ "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+ "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+ "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx"
+ "xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx";
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ char *rdata;
+ size_t rsize;
+ size_t i;
+
+ if (test_start_nbdkit ("null", "size=100M", NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* All writes should read back as zeroes. However we have to
+ * reopen the handle to stop the libguestfs kernel from caching
+ * the written data.
+ */
+ if (guestfs_pwrite_device (g, "/dev/sda", data, 256, 1024) == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_shutdown (g) == -1)
+ exit (EXIT_FAILURE);
+
+ guestfs_close (g);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ rdata = guestfs_pread_device (g, "/dev/sda", 2048, 0, &rsize);
+ if (rdata == NULL)
+ exit (EXIT_FAILURE);
+ if (rsize != 2048) {
+ fprintf (stderr, "test-null: short read\n");
+ exit (EXIT_FAILURE);
+ }
+
+ for (i = 0; i < 2048; ++i) {
+ if (rdata[i] != 0) {
+ fprintf (stderr, "test-null: unexpected non-zero data read\n");
+ exit (EXIT_FAILURE);
+ }
+ }
+ free (rdata);
+
+ if (guestfs_shutdown (g) == -1)
+ exit (EXIT_FAILURE);
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2014 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ int64_t size;
+ char *data;
+
+ if (test_start_nbdkit ("./test-ocaml-plugin.so", "a=1", "b=2", "c=3",
+ NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Check the size is exactly 1M. */
+ size = guestfs_blockdev_getsize64 (g, "/dev/sda");
+ if (size != 1024 * 1024) {
+ fprintf (stderr, "%s FAILED: unexpected size "
+ "(actual: %" PRIi64 ", expected: %d)\n",
+ program_name, size, 1024*1024);
+ exit (EXIT_FAILURE);
+ }
+
+ if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1)
+ exit (EXIT_FAILURE);
+ if (guestfs_mkfs (g, "ext2", "/dev/sda1") == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_mount_options (g, "discard", "/dev/sda1", "/") == -1)
+ exit (EXIT_FAILURE);
+
+#define filename "/hello.txt"
+#define content "hello, people of the world"
+
+ if (guestfs_write (g, filename, content, strlen (content)) == -1)
+ exit (EXIT_FAILURE);
+
+ data = guestfs_cat (g, filename);
+ if (!data)
+ exit (EXIT_FAILURE);
+
+ if (strcmp (data, content) != 0) {
+ fprintf (stderr,
+ "%s FAILED: unexpected content of %s file "
+ "(actual: %s, expected: %s)\n",
+ program_name, filename, data, content);
+ exit (EXIT_FAILURE);
+ }
+ free (data);
+
+ /* Run sync to test flush path. */
+ if (guestfs_sync (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Run fstrim to test trim path. However only recent versions of
+ * libguestfs have this, and it probably only works in recent
+ * versions of qemu.
+ */
+#ifdef GUESTFS_HAVE_FSTRIM
+ if (guestfs_fstrim (g, "/", -1) == -1)
+ exit (EXIT_FAILURE);
+#endif
+
+ /* Run fallocate(1) on the device to test zero path. */
+ if (guestfs_umount (g, "/") == -1)
+ exit (EXIT_FAILURE);
+ const char *cmd[] = { "fallocate", "-nzl", "64k", "/dev/sda", NULL };
+ data = guestfs_debug (g, "sh", (char **) cmd);
+ free (data);
+
+ if (guestfs_shutdown (g) == -1)
+ exit (EXIT_FAILURE);
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Unfortunately the output of this test depends on the PAGE_SIZE
+# defined in common/sparse/sparse.c and would change (breaking the
+# test) if we ever changed that definition.
+
+source ./functions.sh
+set -e
+set -x
+
+requires jq --version
+requires qemu-img --version
+requires qemu-img map --help
+
+out="test-offset-extents.out"
+expected="test-offset-extents.expected"
+files="$out $expected"
+rm -f $files
+cleanup_fn rm -f $files
+
+do_test ()
+{
+ # We use jq to normalize the output and convert it to plain text.
+ nbdkit -U - \
+ --filter=offset \
+ data data="$1" size="$2" \
+ offset=1024 range=65536 \
+ --run 'qemu-img map -f raw --output=json $nbd' |
+ jq -c '.[] | {start:.start, length:.length, data:.data, zero:.zero}' \
+ > $out
+ if ! cmp $out $expected; then
+ echo "$0: output did not match expected data"
+ echo "expected:"
+ cat $expected
+ echo "output:"
+ cat $out
+ exit 1
+ fi
+}
+
+# Completely sparse disk.
+cat > $expected <<'EOF'
+{"start":0,"length":65536,"data":false,"zero":true}
+EOF
+do_test "" 1M
+
+# Completely allocated disk.
+#
+# We have to write a non-zero byte @32767 so that the sparse array
+# doesn't detect the range from 1024-32767 as being all zeroes.
+cat > $expected <<'EOF'
+{"start":0,"length":65536,"data":true,"zero":false}
+EOF
+do_test "1 @32767 1 @32768 1 @65536 1 @98304 1" 128K
+
+# Allocated data at the start of a 1M disk.
+cat > $expected <<'EOF'
+{"start":0,"length":31744,"data":true,"zero":false}
+{"start":31744,"length":33792,"data":false,"zero":true}
+EOF
+do_test "1 @32767 1" 1M
+
+# Allocated zeroes at the start of the disk.
+cat > $expected <<'EOF'
+{"start":0,"length":31744,"data":true,"zero":true}
+{"start":31744,"length":33792,"data":false,"zero":true}
+EOF
+do_test "0" 1M
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <fcntl.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+static uint8_t buf[1024*1024];
+
+static void
+check_buf (void)
+{
+ size_t i;
+
+ for (i = 0; i < sizeof buf; i += 2) {
+ if (buf[i] != 0x55 || buf[i+1] != 0xAA) {
+ fprintf (stderr, "%s FAILED: file overwritten outside offset/range\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+ }
+}
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r, fd;
+ char *data;
+
+ /* offset-data (created by tests/Makefile.am) is a 10 MB file
+ * containing test pattern data 0x55AA repeated. We use the middle
+ * 8 MB to create a partition table and filesystem, and check
+ * afterwards that the test pattern in the first and final megabyte
+ * has not been overwritten.
+ */
+ if (test_start_nbdkit ("--filter", "offset",
+ "file", "offset-data",
+ "offset=1M", "range=8M",
+ NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1)
+ exit (EXIT_FAILURE);
+ if (guestfs_mkfs (g, "ext2", "/dev/sda1") == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_mount (g, "/dev/sda1", "/") == -1)
+ exit (EXIT_FAILURE);
+
+#define filename "/hello.txt"
+#define content "hello, people of the world"
+
+ if (guestfs_write (g, filename, content, strlen (content)) == -1)
+ exit (EXIT_FAILURE);
+
+ data = guestfs_cat (g, filename);
+ if (!data)
+ exit (EXIT_FAILURE);
+
+ if (strcmp (data, content) != 0) {
+ fprintf (stderr,
+ "%s FAILED: unexpected content of %s file "
+ "(actual: %s, expected: %s)\n",
+ program_name, filename, data, content);
+ exit (EXIT_FAILURE);
+ }
+
+ if (guestfs_fill_dir (g, "/", 1000) == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_shutdown (g) == -1)
+ exit (EXIT_FAILURE);
+
+ guestfs_close (g);
+
+ /* Check the first and final megabyte of test patterns has not been
+ * overwritten in the underlying file.
+ */
+ fd = open ("offset-data", O_RDONLY|O_CLOEXEC);
+ if (fd == -1) {
+ perror ("open: offset-data");
+ exit (EXIT_FAILURE);
+ }
+ if (pread (fd, buf, sizeof buf, 0) != sizeof buf) {
+ fprintf (stderr, "pread: short read or error (%d)\n", errno);
+ exit (EXIT_FAILURE);
+ }
+ check_buf ();
+ if (pread (fd, buf, sizeof buf, 9*1024*1024) != sizeof buf) {
+ fprintf (stderr, "pread: short read or error (%d)\n", errno);
+ exit (EXIT_FAILURE);
+ }
+ check_buf ();
+ close (fd);
+
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Additional test of the offset filter using the pattern plugin.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-io --version
+
+sock=`mktemp -u`
+files="offset2.out offset2.pid $sock"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Run nbdkit with pattern plugin and offset filter in front.
+# 8070450532247927809 = 7E - 1023
+start_nbdkit -P offset2.pid -U $sock \
+ --filter=offset \
+ pattern size=7E \
+ offset=8070450532247927809 range=512
+
+qemu-io -r -f raw "nbd+unix://?socket=$sock" \
+ -c 'r -v 0 512' | grep -E '^[[:xdigit:]]+:' > offset2.out
+if [ "$(cat offset2.out)" != "00000000: ff ff ff ff ff fc 00 6f ff ff ff ff ff fc 08 6f .......o.......o
+00000010: ff ff ff ff ff fc 10 6f ff ff ff ff ff fc 18 6f .......o.......o
+00000020: ff ff ff ff ff fc 20 6f ff ff ff ff ff fc 28 6f .......o.......o
+00000030: ff ff ff ff ff fc 30 6f ff ff ff ff ff fc 38 6f ......0o......8o
+00000040: ff ff ff ff ff fc 40 6f ff ff ff ff ff fc 48 6f .......o......Ho
+00000050: ff ff ff ff ff fc 50 6f ff ff ff ff ff fc 58 6f ......Po......Xo
+00000060: ff ff ff ff ff fc 60 6f ff ff ff ff ff fc 68 6f .......o......ho
+00000070: ff ff ff ff ff fc 70 6f ff ff ff ff ff fc 78 6f ......po......xo
+00000080: ff ff ff ff ff fc 80 6f ff ff ff ff ff fc 88 6f .......o.......o
+00000090: ff ff ff ff ff fc 90 6f ff ff ff ff ff fc 98 6f .......o.......o
+000000a0: ff ff ff ff ff fc a0 6f ff ff ff ff ff fc a8 6f .......o.......o
+000000b0: ff ff ff ff ff fc b0 6f ff ff ff ff ff fc b8 6f .......o.......o
+000000c0: ff ff ff ff ff fc c0 6f ff ff ff ff ff fc c8 6f .......o.......o
+000000d0: ff ff ff ff ff fc d0 6f ff ff ff ff ff fc d8 6f .......o.......o
+000000e0: ff ff ff ff ff fc e0 6f ff ff ff ff ff fc e8 6f .......o.......o
+000000f0: ff ff ff ff ff fc f0 6f ff ff ff ff ff fc f8 6f .......o.......o
+00000100: ff ff ff ff ff fd 00 6f ff ff ff ff ff fd 08 6f .......o.......o
+00000110: ff ff ff ff ff fd 10 6f ff ff ff ff ff fd 18 6f .......o.......o
+00000120: ff ff ff ff ff fd 20 6f ff ff ff ff ff fd 28 6f .......o.......o
+00000130: ff ff ff ff ff fd 30 6f ff ff ff ff ff fd 38 6f ......0o......8o
+00000140: ff ff ff ff ff fd 40 6f ff ff ff ff ff fd 48 6f .......o......Ho
+00000150: ff ff ff ff ff fd 50 6f ff ff ff ff ff fd 58 6f ......Po......Xo
+00000160: ff ff ff ff ff fd 60 6f ff ff ff ff ff fd 68 6f .......o......ho
+00000170: ff ff ff ff ff fd 70 6f ff ff ff ff ff fd 78 6f ......po......xo
+00000180: ff ff ff ff ff fd 80 6f ff ff ff ff ff fd 88 6f .......o.......o
+00000190: ff ff ff ff ff fd 90 6f ff ff ff ff ff fd 98 6f .......o.......o
+000001a0: ff ff ff ff ff fd a0 6f ff ff ff ff ff fd a8 6f .......o.......o
+000001b0: ff ff ff ff ff fd b0 6f ff ff ff ff ff fd b8 6f .......o.......o
+000001c0: ff ff ff ff ff fd c0 6f ff ff ff ff ff fd c8 6f .......o.......o
+000001d0: ff ff ff ff ff fd d0 6f ff ff ff ff ff fd d8 6f .......o.......o
+000001e0: ff ff ff ff ff fd e0 6f ff ff ff ff ff fd e8 6f .......o.......o
+000001f0: ff ff ff ff ff fd f0 6f ff ff ff ff ff fd f8 6f .......o.......o" ]
+then
+ echo "$0: unexpected pattern:"
+ cat offset2.out
+ exit 1
+fi
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ char *data;
+ size_t i, size;
+
+ if (test_start_nbdkit ("-o", "file", "file-data", NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Using exportname = "" causes qemu to use the oldstyle protocol. */
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Check the data in the file is \x01-\x08 repeated 512 times. */
+ data = guestfs_pread_device (g, "/dev/sda", 8 * 512, 0, &size);
+ if (!data)
+ exit (EXIT_FAILURE);
+ if (size != 8 * 512) {
+ fprintf (stderr,
+ "%s FAILED: unexpected size (actual: %zu, expected: 512)\n",
+ program_name, size);
+ exit (EXIT_FAILURE);
+ }
+
+ for (i = 0; i < 512 * 8; i += 8) {
+ if (data[i] != 1 || data[i+1] != 2 ||
+ data[i+2] != 3 || data[i+3] != 4 ||
+ data[i+4] != 5 || data[i+5] != 6 ||
+ data[i+6] != 7 || data[i+7] != 8) {
+ fprintf (stderr, "%s FAILED: unexpected data returned at offset %zu\n",
+ program_name, i);
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ free (data);
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2017-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+
+# Check file-data was created by Makefile and qemu-io exists.
+requires test -f file-data
+requires qemu-io --version
+
+cleanup_fn rm -f test-parallel-file.data test-parallel-file.out
+
+# Populate file, and sanity check that qemu-io can issue parallel requests
+printf '%1024s' . > test-parallel-file.data
+qemu-io -f raw -c "aio_write -P 1 0 512" -c "aio_write -P 2 512 512" \
+ -c aio_flush test-parallel-file.data ||
+ { echo "'qemu-io' can't drive parallel requests"; exit 77; }
+
+# Set up the file plugin to delay both reads and writes (for a good chance
+# that parallel requests are in flight), and with writes longer than reads
+# (to more easily detect if out-of-order completion happens). This test
+# may have spurious failures under heavy loads on the test machine, where
+# tuning the delays may help.
+
+# With --threads=1, the write should complete first because it was issued first
+nbdkit -v -t 1 -U - --filter=delay file test-parallel-file.data \
+ wdelay=2 rdelay=1 --run 'qemu-io -f raw -c "aio_write -P 2 512 512" \
+ -c "aio_read -P 1 0 512" -c aio_flush $nbd' |
+ tee test-parallel-file.out
+if test "$(grep '512/512' test-parallel-file.out)" != \
+"wrote 512/512 bytes at offset 512
+read 512/512 bytes at offset 0"; then
+ exit 1
+fi
+
+# With default --threads, the faster read should complete first
+nbdkit -v -U - --filter=delay file test-parallel-file.data \
+ wdelay=2 rdelay=1 --run 'qemu-io -f raw -c "aio_write -P 2 512 512" \
+ -c "aio_read -P 1 0 512" -c aio_flush $nbd' |
+ tee test-parallel-file.out
+if test "$(grep '512/512' test-parallel-file.out)" != \
+"read 512/512 bytes at offset 0
+wrote 512/512 bytes at offset 512"; then
+ exit 1
+fi
+
+exit 0
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2017-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+
+# Check file-data was created by Makefile and qemu-io exists.
+requires test -f file-data
+requires qemu-io --version
+
+sock=`mktemp -u`
+files="test-parallel-nbd.out $sock test-parallel-nbd.data test-parallel-nbd.pid"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Populate file, and sanity check that qemu-io can issue parallel requests
+printf '%1024s' . > test-parallel-nbd.data
+qemu-io -f raw -c "aio_write -P 1 0 512" -c "aio_write -P 2 512 512" \
+ -c aio_flush test-parallel-nbd.data ||
+ { echo "'qemu-io' can't drive parallel requests"; exit 77; }
+
+# Set up the file plugin to delay both reads and writes (for a good chance
+# that parallel requests are in flight), and with writes longer than reads
+# (to more easily detect if out-of-order completion happens). This test
+# may have spurious failures under heavy loads on the test machine, where
+# tuning the delays may help.
+
+start_nbdkit -P test-parallel-nbd.pid \
+ -U $sock \
+ --filter=delay \
+ file test-parallel-nbd.data wdelay=2 rdelay=1
+
+# With --threads=1, the write should complete first because it was issued first
+nbdkit -v -t 1 -U - nbd socket=$sock --run '
+ qemu-io -f raw -c "aio_write -P 2 512 512" -c "aio_read -P 1 0 512" \
+ -c aio_flush $nbd' | tee test-parallel-nbd.out
+if test "$(grep '512/512' test-parallel-nbd.out)" != \
+"wrote 512/512 bytes at offset 512
+read 512/512 bytes at offset 0"; then
+ exit 1
+fi
+
+# With default --threads, the faster read should complete first
+nbdkit -v -U - nbd socket=$sock --run '
+ qemu-io -f raw -c "aio_write -P 2 512 512" -c "aio_read -P 1 0 512" \
+ -c aio_flush $nbd' | tee test-parallel-nbd.out
+if test "$(grep '512/512' test-parallel-nbd.out)" != \
+"read 512/512 bytes at offset 0
+wrote 512/512 bytes at offset 512"; then
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+requires sfdisk --help
+requires test -r /dev/urandom
+requires qemu-img --version
+
+d="partition1.d"
+rm -rf $d
+cleanup_fn rm -rf $d
+mkdir $d
+
+test ()
+{
+ label=$1
+ nrparts=$2
+ skip_extended=$3
+
+ rm -f $d/disk
+ truncate -s 1G $d/disk
+ sfdisk -X $label $d/disk
+
+ # Run nbdkit on each partition, copying data in and out.
+ for ((part=1; part <= $nrparts; ++part)); do
+ # The smallest partition in any test is 1023 sectors. However
+ # to make things quicker only write a sector of random data.
+ dd if=/dev/urandom of=$d/rand bs=512 count=1
+
+ if [ "$part" != "$skip_extended" ]; then
+ nbdkit -f -v -U - \
+ --filter=partition file $d/disk partition=$part \
+ --run "qemu-img convert -n $d/rand \$nbd"
+ nbdkit -f -v -U - \
+ --filter=partition file $d/disk partition=$part \
+ --run "qemu-img convert \$nbd $d/out"
+ truncate -s 512 $d/out
+ cmp $d/rand $d/out
+ fi
+ done
+}
+
+# Regular MBR with 1-4 primary partitions.
+test dos 1 <<'EOF'
+2048 1023 L -
+EOF
+
+test dos 2 <<'EOF'
+2048 1023 L -
+4096 4095 L -
+EOF
+
+test dos 3 <<'EOF'
+2048 1023 L -
+4096 4095 L -
+8192 8191 L -
+EOF
+
+test dos 4 <<'EOF'
+2048 1023 L -
+4096 4095 L -
+8192 8191 L -
+16384 16383 L -
+EOF
+
+# MBR with 3 primary partitions and 2 logical partitions.
+# Ignore partition 4 which is the extended partition.
+test dos 6 4 <<'EOF'
+2048 2047 L -
+4096 4095 L -
+8192 8191 L -
+16384 16383 E -
+17000 999 L -
+18000 999 L -
+EOF
+
+# As above but the extended partition is 1.
+test dos 6 1 <<'EOF'
+16384 16383 E -
+2048 2047 L -
+4096 4095 L -
+8192 8191 L -
+17000 999 L -
+18000 999 L -
+EOF
+
+# MBR also allows missing partitions. This disk has only partition 2.
+# (Partition 1 must be ignored since it is missing.)
+test dos 2 1 <<'EOF'
+disk2: start=1024 size=1023 type=83
+EOF
+
+# Regular GPT with 1-6 partitions.
+test gpt 1 <<'EOF'
+2048 1023 L -
+EOF
+
+test gpt 2 <<'EOF'
+2048 1023 L -
+4096 4095 L -
+EOF
+
+test gpt 3 <<'EOF'
+2048 1023 L -
+4096 4095 L -
+8192 8191 L -
+EOF
+
+test gpt 4 <<'EOF'
+2048 1023 L -
+4096 4095 L -
+8192 8191 L -
+16384 16383 L -
+EOF
+
+test gpt 5 <<'EOF'
+2048 2047 L -
+4096 4095 L -
+8192 8191 L -
+16384 16383 L -
+32768 32767 L -
+EOF
+
+test gpt 6 <<'EOF'
+2048 2047 L -
+4096 4095 L -
+8192 8191 L -
+16384 16383 L -
+32768 32767 L -
+65536 65535 L -
+EOF
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-img --version
+
+files="partition2.log"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Select partition 3 from a 2 partition disk.
+nbdkit -U - -r -f -v --filter=partition \
+ partitioning disk disk partition-type=mbr partition=3 \
+ --run 'qemu-img info $nbd' > partition2.log 2>&1 ||:
+
+cat partition2.log
+
+grep "MBR partition 3 not found" partition2.log
+
+# Selection partition 11 from a 9 partition disk. NB: partition 4 is
+# the extended partition so it is skipped. This test is slightly
+# different from above as it invokes the code supporting logical
+# partitions.
+nbdkit -U - -r -f -v --filter=partition \
+ partitioning disk disk disk disk disk disk disk disk disk \
+ partition-type=mbr partition=11 \
+ --run 'qemu-img info $nbd' > partition2.log 2>&1 ||:
+
+cat partition2.log
+
+grep "MBR partition 11 not found" partition2.log
+
+# It should be impossible to select an extended partition.
+nbdkit -U - -r -f -v --filter=partition \
+ partitioning disk disk disk disk disk partition-type=mbr partition=4 \
+ --run 'qemu-img info $nbd' > partition2.log 2>&1 ||:
+
+cat partition2.log
+
+grep "MBR partition 4 not found" partition2.log
+
+# Selecting a logical partition on a disk without an extended
+# partition gives a different error.
+nbdkit -U - -r -f -v --filter=partition \
+ partitioning disk disk partition-type=mbr partition=5 \
+ --run 'qemu-img info $nbd' > partition2.log 2>&1 ||:
+
+cat partition2.log
+
+grep "there is no extended partition" partition2.log
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the partitioning plugin.
+#
+# Test 1: check that partitioning + partition filter = identity
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-img --version
+
+files="partitioning1.out partitioning1-p1 partitioning1-p2 partitioning1-p3 partitioning1-p4 partitioning1-p5 partitioning1-p6"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Create some odd-sized partitions. These exist to test alignment and
+# padding.
+truncate -s 1 partitioning1-p1
+truncate -s 511 partitioning1-p2
+truncate -s 10M partitioning1-p3
+truncate -s 1023 partitioning1-p4
+truncate -s 1 partitioning1-p5
+truncate -s 511 partitioning1-p6
+
+# Run nbdkit with partitioning plugin and partition filter.
+nbdkit -f -v -D partitioning.regions=1 -U - \
+ --filter=partition \
+ partitioning \
+ mbr-id=0x83 alignment=512 \
+ partitioning1-p1 \
+ mbr-id=0x82 alignment=$((2048 * 512)) \
+ partitioning1-p2 \
+ mbr-id=0x83 \
+ file-data \
+ mbr-id=0x82 \
+ partitioning1-p3 \
+ partition-type=mbr \
+ partition=3 \
+ --run 'qemu-img convert $nbd partitioning1.out'
+
+# Contents of partitioning1.out should be identical to file-data.
+cmp file-data partitioning1.out
+
+# Same test with > 4 MBR partitions.
+# Note we select partition 6 because partition 4 is the extended partition.
+nbdkit -f -v -D partitioning.regions=1 -U - \
+ --filter=partition \
+ partitioning \
+ partitioning1-p1 \
+ partitioning1-p2 \
+ partitioning1-p3 \
+ partitioning1-p4 \
+ file-data \
+ partitioning1-p5 \
+ partitioning1-p6 \
+ partition-type=mbr \
+ partition=6 \
+ --run 'qemu-img convert $nbd partitioning1.out'
+
+cmp file-data partitioning1.out
+
+# Same test with GPT.
+nbdkit -f -v -D partitioning.regions=1 -U - \
+ --filter=partition \
+ partitioning \
+ partitioning1-p1 \
+ partitioning1-p2 \
+ partitioning1-p3 \
+ partitioning1-p4 \
+ type-guid=A2A0D0EB-E5B9-3344-87C0-68B6B72699C7 \
+ file-data \
+ type-guid=AF3DC60F-8384-7247-8E79-3D69D8477DE4 \
+ partitioning1-p5 \
+ partitioning1-p6 \
+ partition-type=gpt \
+ partition=5 \
+ --run 'qemu-img convert $nbd partitioning1.out'
+
+cmp file-data partitioning1.out
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the partitioning plugin.
+#
+# Test 2: Create a naked filesystem, embed in a partition, and try to
+# read/write it with guestfish.
+
+source ./functions.sh
+set -e
+set -x
+
+requires mke2fs -V
+
+sock=`mktemp -u`
+files="partitioning2.pid $sock partitioning2.fs partitioning2.p1 partitioning2.p3"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Create partitions before and after.
+truncate -s 1 partitioning2.p1
+truncate -s 10M partitioning2.p3
+
+# Create the naked filesystem.
+truncate -s 20M partitioning2.fs
+mke2fs -F -t ext2 partitioning2.fs
+
+# Run nbdkit.
+start_nbdkit -P partitioning2.pid -U $sock \
+ partitioning partitioning2.p1 partitioning2.fs partitioning2.p3 \
+ partition-type=gpt
+
+# Connect with guestfish and read/write stuff to partition 2.
+guestfish --format=raw -a "nbd://?socket=$sock" <<'EOF'
+ run
+ mount /dev/sda2 /
+ touch /hello
+ fill-pattern "abc" 10000 /pattern
+ ll /
+ umount /dev/sda2
+ sync
+EOF
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the partitioning plugin.
+#
+# Test 3: Check GUIDs.
+
+source ./functions.sh
+set -e
+set -x
+
+sock=`mktemp -u`
+files="partitioning3.pid $sock partitioning3.p1 partitioning3.p2 partitioning3.p3 partitioning3.out"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Create the partitions.
+truncate -s 1 partitioning3.p1
+truncate -s 10M partitioning3.p2
+truncate -s 100M partitioning3.p3
+
+# Run nbdkit.
+start_nbdkit -P partitioning3.pid -U $sock \
+ partitioning \
+ partitioning3.p1 \
+ type-guid=0FC63DAF-8483-4772-8E79-3D69D8477DE4 \
+ partitioning3.p2 \
+ type-guid=0657FD6D-A4AB-43C4-84E5-0933C84B4F4F \
+ partitioning3.p3 \
+ partition-type=gpt
+
+# Connect with guestfish and read partition types.
+guestfish --ro --format=raw -a "nbd://?socket=$sock" > partitioning3.out <<'EOF'
+ run
+ part-get-gpt-type /dev/sda 1
+ part-get-gpt-type /dev/sda 2
+ part-get-gpt-type /dev/sda 3
+EOF
+
+if [ "$(cat partitioning3.out)" != "0FC63DAF-8483-4772-8E79-3D69D8477DE4
+0FC63DAF-8483-4772-8E79-3D69D8477DE4
+0657FD6D-A4AB-43C4-84E5-0933C84B4F4F" ]; then
+ echo "$0: unexpected partition type GUIDs:"
+ cat partitioning3.out
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the partitioning plugin.
+#
+# Test 4: Test > 128 partitions using GPT.
+#
+# virtio-scsi (used by libguestfs) doesn't support more than 15
+# partitions. In fact the only client which supports this is our own
+# partition filter so we use that for the test.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-img --version
+
+# This test requires the partitioning plugin to open at least 768
+# files (say 800 to make it a round number). On OpenBSD the limit on
+# open files is set to 512 and so the test fails.
+if [ $(ulimit -n) -lt 800 ]; then
+ echo "$0: ulimit open files is too low for this test"
+ exit 77
+fi
+
+d=partitioning4.d
+rm -rf $d
+mkdir $d
+cleanup_fn rm -rf $d
+
+# Create the partitions.
+for i in {1..768}; do
+ truncate -s 1 $(printf '%s/part.%04d' $d $i)
+done
+
+# Create partition 250 containing data and truncate it to a whole
+# number of sectors.
+rm $d/part.0250
+for i in {0..1000}; do
+ echo -n "hello " >> $d/part.0250
+done
+truncate -s 6144 $d/part.0250
+
+# Run nbdkit.
+nbdkit -f -v -D partitioning.regions=1 -U - \
+ --filter=partition \
+ partitioning \
+ $d/part.* \
+ partition-type=gpt \
+ partition=250 \
+ --run "qemu-img convert \$nbd $d/out"
+
+# The output should be identical to partition 250.
+cmp $d/part.0250 $d/out
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the partitioning plugin.
+#
+# Test 5: Create a filesystem and embed it in an MBR logical
+# partition. libguestfs uses virtio-scsi so the practical limit here
+# is about 15 partitions.
+
+source ./functions.sh
+set -e
+set -x
+
+requires mke2fs -V
+
+sock=`mktemp -u`
+files="partitioning5.pid $sock
+ partitioning5.fs
+ partitioning5.p1 partitioning5.p2 partitioning5.p3 partitioning5.p5 partitioning5.p6 partitioning5.p7 partitioning5.p8 partitioning5.p9 partitioning5.p10 partitioning5.p11 partitioning5.p13"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Create partitions before and after.
+truncate -s 1 partitioning5.p1
+truncate -s 10M partitioning5.p2
+truncate -s 512 partitioning5.p3
+# partition 4 = extended partition
+truncate -s 1 partitioning5.p5
+truncate -s 512 partitioning5.p6
+truncate -s 1 partitioning5.p7
+truncate -s 1 partitioning5.p8
+truncate -s 10M partitioning5.p9
+truncate -s 512 partitioning5.p10
+truncate -s 1 partitioning5.p11
+# partition 12 = naked filesystem
+truncate -s 10M partitioning5.p13
+
+# Create the naked filesystem.
+truncate -s 20M partitioning5.fs
+mke2fs -F -t ext2 partitioning5.fs
+
+# Run nbdkit.
+start_nbdkit -P partitioning5.pid -U $sock \
+ partitioning \
+ partitioning5.p1 partitioning5.p2 \
+ partitioning5.p3 \
+ partitioning5.p5 partitioning5.p6 \
+ partitioning5.p7 partitioning5.p8 \
+ partitioning5.p9 partitioning5.p10 \
+ partitioning5.p11 partitioning5.fs \
+ partitioning5.p13 \
+ partition-type=mbr
+
+# Connect with guestfish and read/write stuff to partition 12.
+guestfish --format=raw -a "nbd://?socket=$sock" <<'EOF'
+ run
+ mount /dev/sda12 /
+ touch /hello
+ fill-pattern "abc" 10000 /pattern
+ ll /
+ umount /dev/sda12
+ sync
+EOF
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the partitioning plugin.
+#
+# Test 4: Test > 128 partitions using MBR.
+#
+# virtio-scsi (used by libguestfs) doesn't support more than 15
+# partitions. In fact the only client which supports this is our own
+# partition filter so we use that for the test.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-img --version
+
+# This test requires the partitioning plugin to open at least 768
+# files (say 800 to make it a round number). On OpenBSD the limit on
+# open files is set to 512 and so the test fails.
+if [ $(ulimit -n) -lt 800 ]; then
+ echo "$0: ulimit open files is too low for this test"
+ exit 77
+fi
+
+d=partitioning6.d
+rm -rf $d
+mkdir $d
+cleanup_fn rm -rf $d
+
+# Create the partitions.
+for i in {1..768}; do
+ truncate -s 1 $(printf '%s/part.%04d' $d $i)
+done
+
+# Create partition 250 containing data and truncate it to a whole
+# number of sectors.
+rm $d/part.0250
+for i in {0..1000}; do
+ echo -n "hello " >> $d/part.0250
+done
+truncate -s 6144 $d/part.0250
+
+# Run nbdkit.
+#
+# Note we select partition 251 (not 250) because partition 4 is the
+# extended partition and everything partition following moves up by 1.
+nbdkit -f -v -D partitioning.regions=1 -U - \
+ --filter=partition \
+ partitioning \
+ $d/part.* \
+ partition-type=mbr \
+ partition=251 \
+ --run "qemu-img convert \$nbd $d/out"
+
+# The output should be identical to partition 250.
+cmp $d/part.0250 $d/out
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the pattern plugin with the largest possible size supported
+# by qemu and nbdkit.
+
+source ./functions.sh
+set -e
+
+requires qemu-io --version
+
+sock=`mktemp -u`
+files="pattern-largest-for-qemu.out pattern-largest-for-qemu.pid $sock"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Run nbdkit with pattern plugin.
+# size = (2^63-1) & ~511 which is the largest supported by qemu.
+start_nbdkit -P pattern-largest-for-qemu.pid -U $sock \
+ pattern size=9223372036854775296
+
+qemu-io -r -f raw "nbd+unix://?socket=$sock" \
+ -c 'r -v 9223372036854774784 512' | grep -E '^[[:xdigit:]]+:' > pattern-largest-for-qemu.out
+if [ "$(cat pattern-largest-for-qemu.out)" != "7ffffffffffffc00: 7f ff ff ff ff ff fc 00 7f ff ff ff ff ff fc 08 ................
+7ffffffffffffc10: 7f ff ff ff ff ff fc 10 7f ff ff ff ff ff fc 18 ................
+7ffffffffffffc20: 7f ff ff ff ff ff fc 20 7f ff ff ff ff ff fc 28 ................
+7ffffffffffffc30: 7f ff ff ff ff ff fc 30 7f ff ff ff ff ff fc 38 .......0.......8
+7ffffffffffffc40: 7f ff ff ff ff ff fc 40 7f ff ff ff ff ff fc 48 ...............H
+7ffffffffffffc50: 7f ff ff ff ff ff fc 50 7f ff ff ff ff ff fc 58 .......P.......X
+7ffffffffffffc60: 7f ff ff ff ff ff fc 60 7f ff ff ff ff ff fc 68 ...............h
+7ffffffffffffc70: 7f ff ff ff ff ff fc 70 7f ff ff ff ff ff fc 78 .......p.......x
+7ffffffffffffc80: 7f ff ff ff ff ff fc 80 7f ff ff ff ff ff fc 88 ................
+7ffffffffffffc90: 7f ff ff ff ff ff fc 90 7f ff ff ff ff ff fc 98 ................
+7ffffffffffffca0: 7f ff ff ff ff ff fc a0 7f ff ff ff ff ff fc a8 ................
+7ffffffffffffcb0: 7f ff ff ff ff ff fc b0 7f ff ff ff ff ff fc b8 ................
+7ffffffffffffcc0: 7f ff ff ff ff ff fc c0 7f ff ff ff ff ff fc c8 ................
+7ffffffffffffcd0: 7f ff ff ff ff ff fc d0 7f ff ff ff ff ff fc d8 ................
+7ffffffffffffce0: 7f ff ff ff ff ff fc e0 7f ff ff ff ff ff fc e8 ................
+7ffffffffffffcf0: 7f ff ff ff ff ff fc f0 7f ff ff ff ff ff fc f8 ................
+7ffffffffffffd00: 7f ff ff ff ff ff fd 00 7f ff ff ff ff ff fd 08 ................
+7ffffffffffffd10: 7f ff ff ff ff ff fd 10 7f ff ff ff ff ff fd 18 ................
+7ffffffffffffd20: 7f ff ff ff ff ff fd 20 7f ff ff ff ff ff fd 28 ................
+7ffffffffffffd30: 7f ff ff ff ff ff fd 30 7f ff ff ff ff ff fd 38 .......0.......8
+7ffffffffffffd40: 7f ff ff ff ff ff fd 40 7f ff ff ff ff ff fd 48 ...............H
+7ffffffffffffd50: 7f ff ff ff ff ff fd 50 7f ff ff ff ff ff fd 58 .......P.......X
+7ffffffffffffd60: 7f ff ff ff ff ff fd 60 7f ff ff ff ff ff fd 68 ...............h
+7ffffffffffffd70: 7f ff ff ff ff ff fd 70 7f ff ff ff ff ff fd 78 .......p.......x
+7ffffffffffffd80: 7f ff ff ff ff ff fd 80 7f ff ff ff ff ff fd 88 ................
+7ffffffffffffd90: 7f ff ff ff ff ff fd 90 7f ff ff ff ff ff fd 98 ................
+7ffffffffffffda0: 7f ff ff ff ff ff fd a0 7f ff ff ff ff ff fd a8 ................
+7ffffffffffffdb0: 7f ff ff ff ff ff fd b0 7f ff ff ff ff ff fd b8 ................
+7ffffffffffffdc0: 7f ff ff ff ff ff fd c0 7f ff ff ff ff ff fd c8 ................
+7ffffffffffffdd0: 7f ff ff ff ff ff fd d0 7f ff ff ff ff ff fd d8 ................
+7ffffffffffffde0: 7f ff ff ff ff ff fd e0 7f ff ff ff ff ff fd e8 ................
+7ffffffffffffdf0: 7f ff ff ff ff ff fd f0 7f ff ff ff ff ff fd f8 ................" ]
+then
+ echo "$0: unexpected pattern:"
+ cat pattern-largest-for-qemu.out
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the pattern plugin with the largest possible size supported
+# by nbdkit.
+
+source ./functions.sh
+set -e
+
+requires qemu-io --version
+
+sock=`mktemp -u`
+files="pattern-largest.out pattern-largest.pid $sock"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Run nbdkit with pattern plugin.
+# size = 2^63-1
+start_nbdkit -P pattern-largest.pid -U $sock \
+ pattern size=9223372036854775807
+
+# qemu cannot open this image!
+#
+# can't open device nbd+unix://?socket=$sock: Could not get image size: File too large
+#
+# Therefore we skip the remainder of this test (in effect, testing
+# only that nbdkit can create the file).
+exit 77
+
+# XXX Unfortunately qemu-io can only issue 512-byte aligned requests,
+# and the final block is only 511 bytes, so we have to request the 512
+# bytes before that block.
+qemu-io -r -f raw "nbd+unix://?socket=$sock" \
+ -c 'r -v 9223372036854774784 512' | grep -E '^[[:xdigit:]]+:' > pattern-largest.out
+if [ "$(cat pattern-largest.out)" != "XXX EXPECTED PATTERN HERE" ]
+then
+ echo "$0: unexpected pattern:"
+ cat pattern-largest.out
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the pattern plugin.
+#
+# Note we don't have any client which can issue misaligned NBD
+# requests. qemu-io will issue 512-byte aligned requests no matter
+# what read parameters we give it. Hence these tests are rather
+# limited. (XXX)
+
+source ./functions.sh
+set -e
+
+sock=`mktemp -u`
+files="pattern.out pattern.pid $sock"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Test that qemu-io works
+if ! qemu-io --help >/dev/null; then
+ echo "$0: missing or broken qemu-io"
+ exit 77
+fi
+
+# Run nbdkit with pattern plugin.
+start_nbdkit -P pattern.pid -U $sock pattern size=1G
+
+qemu-io -r -f raw "nbd+unix://?socket=$sock" \
+ -c 'r -v 0 512' | grep -E '^[[:xdigit:]]+:' > pattern.out
+if [ "$(cat pattern.out)" != "00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08 ................
+00000010: 00 00 00 00 00 00 00 10 00 00 00 00 00 00 00 18 ................
+00000020: 00 00 00 00 00 00 00 20 00 00 00 00 00 00 00 28 ................
+00000030: 00 00 00 00 00 00 00 30 00 00 00 00 00 00 00 38 .......0.......8
+00000040: 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 48 ...............H
+00000050: 00 00 00 00 00 00 00 50 00 00 00 00 00 00 00 58 .......P.......X
+00000060: 00 00 00 00 00 00 00 60 00 00 00 00 00 00 00 68 ...............h
+00000070: 00 00 00 00 00 00 00 70 00 00 00 00 00 00 00 78 .......p.......x
+00000080: 00 00 00 00 00 00 00 80 00 00 00 00 00 00 00 88 ................
+00000090: 00 00 00 00 00 00 00 90 00 00 00 00 00 00 00 98 ................
+000000a0: 00 00 00 00 00 00 00 a0 00 00 00 00 00 00 00 a8 ................
+000000b0: 00 00 00 00 00 00 00 b0 00 00 00 00 00 00 00 b8 ................
+000000c0: 00 00 00 00 00 00 00 c0 00 00 00 00 00 00 00 c8 ................
+000000d0: 00 00 00 00 00 00 00 d0 00 00 00 00 00 00 00 d8 ................
+000000e0: 00 00 00 00 00 00 00 e0 00 00 00 00 00 00 00 e8 ................
+000000f0: 00 00 00 00 00 00 00 f0 00 00 00 00 00 00 00 f8 ................
+00000100: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 01 08 ................
+00000110: 00 00 00 00 00 00 01 10 00 00 00 00 00 00 01 18 ................
+00000120: 00 00 00 00 00 00 01 20 00 00 00 00 00 00 01 28 ................
+00000130: 00 00 00 00 00 00 01 30 00 00 00 00 00 00 01 38 .......0.......8
+00000140: 00 00 00 00 00 00 01 40 00 00 00 00 00 00 01 48 ...............H
+00000150: 00 00 00 00 00 00 01 50 00 00 00 00 00 00 01 58 .......P.......X
+00000160: 00 00 00 00 00 00 01 60 00 00 00 00 00 00 01 68 ...............h
+00000170: 00 00 00 00 00 00 01 70 00 00 00 00 00 00 01 78 .......p.......x
+00000180: 00 00 00 00 00 00 01 80 00 00 00 00 00 00 01 88 ................
+00000190: 00 00 00 00 00 00 01 90 00 00 00 00 00 00 01 98 ................
+000001a0: 00 00 00 00 00 00 01 a0 00 00 00 00 00 00 01 a8 ................
+000001b0: 00 00 00 00 00 00 01 b0 00 00 00 00 00 00 01 b8 ................
+000001c0: 00 00 00 00 00 00 01 c0 00 00 00 00 00 00 01 c8 ................
+000001d0: 00 00 00 00 00 00 01 d0 00 00 00 00 00 00 01 d8 ................
+000001e0: 00 00 00 00 00 00 01 e0 00 00 00 00 00 00 01 e8 ................
+000001f0: 00 00 00 00 00 00 01 f0 00 00 00 00 00 00 01 f8 ................" ]
+then
+ echo "$0: unexpected pattern:"
+ cat pattern.out
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+if test ! -d "$SRCDIR"; then
+ echo "$0: could not locate python-exception.py"
+ exit 1
+fi
+
+# Python has proven very difficult to valgrind, therefore it is disabled.
+if [ "$NBDKIT_VALGRIND" = "1" ]; then
+ echo "$0: skipping Python test under valgrind."
+ exit 77
+fi
+
+output=test-python-exception.out
+rm -f $output
+cleanup_fn rm -f $output
+
+nbdkit -f -v python $SRCDIR/python-exception.py test=simple > $output 2>&1 ||:
+cat $output
+
+grep 'this is the test string' $output
+
+nbdkit -f -v python $SRCDIR/python-exception.py test=traceback > $output 2>&1 ||:
+cat $output
+
+grep 'raise_error1' $output
+grep 'raise_error2' $output
+grep 'this is the test string' $output
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2014 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+# Test nbdkit -U - + captive nbdkit.
+
+nbdkit -U - example1 --run 'sleep 5'
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+#include <time.h>
+
+#include <guestfs.h>
+
+#include "random.h"
+
+#include "test.h"
+
+#define SIZE 1024*1024
+static char data[SIZE];
+
+static unsigned histogram[256];
+
+/* After reading the whole disk above, we then read randomly selected
+ * subsets of the disk and compare the data (it should be identical).
+ */
+#define RSIZE 10240
+#define NR_READS 50
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r, i;
+ struct random_state random_state;
+ unsigned offset;
+ char sizearg[32];
+ char *rdata;
+ size_t rsize;
+
+ snprintf (sizearg, sizeof sizearg, "size=%d", SIZE);
+
+ if (test_start_nbdkit ("random", sizearg, NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_READONLY, 1,
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Read the whole device. */
+ rdata = guestfs_pread_device (g, "/dev/sda", SIZE, 0, &rsize);
+ if (rdata == NULL)
+ exit (EXIT_FAILURE);
+ if (rsize != SIZE) {
+ fprintf (stderr, "test-random: short read\n");
+ exit (EXIT_FAILURE);
+ }
+ memcpy (data, rdata, SIZE);
+ free (rdata);
+
+ /* Test that the data is sufficiently random using a simple
+ * histogram. This just tests for gross errors and is not a
+ * complete statistical study.
+ */
+ for (i = 0; i < SIZE; ++i) {
+ unsigned char c = (unsigned char) data[i];
+ histogram[c]++;
+ }
+ for (i = 0; i < 256; ++i) {
+ const unsigned expected = SIZE / 256;
+ if (histogram[i] < 80 * expected / 100) {
+ fprintf (stderr, "test-random: "
+ "random data is not uniformly distributed\n"
+ "eg. byte %d occurs %u times (expected about %u times)\n",
+ i, histogram[i], expected);
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ /* Randomly read parts of the disk to ensure we get the same data.
+ */
+ xsrandom (time (NULL), &random_state);
+ for (i = 0; i < NR_READS; ++i) {
+ offset = xrandom (&random_state);
+ offset %= SIZE - RSIZE;
+ rdata = guestfs_pread_device (g, "/dev/sda", RSIZE, offset, &rsize);
+ if (rdata == NULL)
+ exit (EXIT_FAILURE);
+ if (rsize != RSIZE) {
+ fprintf (stderr, "test-random: short read\n");
+ exit (EXIT_FAILURE);
+ }
+ if (memcmp (&data[offset], rdata, rsize) != 0) {
+ fprintf (stderr, "test-random: returned different data\n");
+ exit (EXIT_FAILURE);
+ }
+ free (rdata);
+ }
+
+ if (guestfs_shutdown (g) == -1)
+ exit (EXIT_FAILURE);
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-img --version
+
+files="rate-dynamic.img rate-dynamic.time rate-dynamic.err rate-dynamic.txt"
+rm -f $files
+cleanup_fn rm -f $files
+
+# This should take no less than 20 seconds to run:
+# (8 * 25 * 1024 * 1024) / (10 * 1024 * 1024) = 20
+# but because the bucket is full at the start the filter will
+# burst for a couple of seconds to begin with, therefore the
+# expected minimum time is more like 18-19 seconds.
+#
+# However if the dynamic rate isn't being picked up then
+# it will take much longer (approx 200 seconds).
+echo 10M > rate-dynamic.txt
+
+# We are using the bash time builtin, so setting TIMEFORMAT will
+# control the output format of the time builtin. For strange use of
+# { ; } here, see: https://stackoverflow.com/a/13356654
+set +x
+{ TIMEFORMAT="%0R" ; time nbdkit -U - --filter=rate pattern size=25M rate=1M rate-file=rate-dynamic.txt --run 'qemu-img convert -p $nbd rate-dynamic.img' 2>rate-dynamic.err ; } 2>rate-dynamic.time
+set -x
+
+cat rate-dynamic.err ||:
+
+seconds="$( cat rate-dynamic.time )"
+if [ "$seconds" -lt 18 ]; then
+ echo "$0: rate filter failed: command took $seconds seconds, expected about 20"
+ exit 1
+fi
+if [ "$seconds" -gt 180 ]; then
+ echo "$0: rate filter failed: command took $seconds seconds, expected about 20"
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-img --version
+
+files="rate.img rate.time rate.err"
+rm -f $files
+cleanup_fn rm -f $files
+
+# This should take no less than 20 seconds to run:
+# (8 * 25 * 1024 * 1024) / (10 * 1024 * 1024) = 20
+# but because the bucket is full at the start the filter will
+# burst for a couple of seconds to begin with, therefore the
+# expected minimum time is more like 18-19 seconds.
+
+# We are using the bash time builtin, so setting TIMEFORMAT will
+# control the output format of the time builtin. For strange use of
+# { ; } here, see: https://stackoverflow.com/a/13356654
+set +x
+{ TIMEFORMAT="%0R" ; time nbdkit -U - --filter=rate pattern size=25M rate=10M --run 'qemu-img convert -p $nbd rate.img' 2>rate.err ; } 2>rate.time
+set -x
+
+cat rate.err ||:
+
+seconds="$( cat rate.time )"
+if [ "$seconds" -lt 18 ]; then
+ echo "$0: rate filter failed: command took $seconds seconds, expected about 20"
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-img --version
+
+files="readahead-copy1.img readahead-copy2.img"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Run nbdkit with and without the readahead filter and a very sparse
+# disk with bytes scattered around. Compare the two outputs which
+# should be identical.
+#
+# Note we must set the size to a multiple of 512 bytes else qemu-img
+# cannot cope.
+data=" 1
+ @0x10001 2
+ @0x100020 3
+ @0x1000301 4
+ @0x10004020 5
+ @0x20050301 6
+ @0x40604020 7
+ @0x87050300 8
+ @0x100000000 9 "
+size=$((2**32 + 512))
+
+nbdkit -v -U - --filter=readahead data data="$data" size=$size \
+ --run 'qemu-img convert $nbd readahead-copy1.img'
+nbdkit -v -U - data data="$data" size=$size \
+ --run 'qemu-img convert $nbd readahead-copy2.img'
+
+# Check the output.
+cmp readahead-copy{1,2}.img
+
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017-2019 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ char *data;
+ char **files;
+ size_t i;
+
+ /* The idea behind the test is that the readahead filter should not
+ * interfere with normal, complex, non-sequential read and write
+ * operations (although it will slow things down a lot).
+ */
+ if (test_start_nbdkit ("--filter", "readahead",
+ "memory", "size=1G", NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_part_disk (g, "/dev/sda", "mbr") == -1)
+ exit (EXIT_FAILURE);
+ if (guestfs_mkfs (g, "ext2", "/dev/sda1") == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_mount_options (g, "discard", "/dev/sda1", "/") == -1)
+ exit (EXIT_FAILURE);
+
+#define filename "/hello.txt"
+#define content "hello, people of the world"
+
+ if (guestfs_write (g, filename, content, strlen (content)) == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_mkdir (g, "/fill") == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_fill_dir (g, "/fill", 10000) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Force write through to and read back from disk. */
+ if (guestfs_sync (g) == -1 || guestfs_drop_caches (g, 3) == -1)
+ exit (EXIT_FAILURE);
+
+ data = guestfs_cat (g, filename);
+ if (!data)
+ exit (EXIT_FAILURE);
+
+ if (strcmp (data, content) != 0) {
+ fprintf (stderr,
+ "%s FAILED: unexpected content of %s file "
+ "(actual: %s, expected: %s)\n",
+ program_name, filename, data, content);
+ exit (EXIT_FAILURE);
+ }
+
+ files = guestfs_find (g, "/");
+ if (!files)
+ exit (EXIT_FAILURE);
+ for (i = 0; files[i] != NULL; ++i)
+ free (files[i]);
+ free (files);
+
+#ifdef GUESTFS_HAVE_FSTRIM
+ /* Delete the files and fstrim to test zeroing/trimming. */
+ if (guestfs_rm (g, filename) == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_rm_rf (g, "/fill") == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_fstrim (g, "/", -1) == -1)
+ exit (EXIT_FAILURE);
+#endif
+
+ if (guestfs_shutdown (g) == -1)
+ exit (EXIT_FAILURE);
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+requires jq --version
+requires qemu-img --version
+requires qemu-img map --help
+
+out="test-sh-extents.out"
+expected="test-sh-extents.expected"
+files="$out $expected"
+rm -f $files
+cleanup_fn rm -f $files
+
+do_test ()
+{
+ # We use jq to normalize the output and convert it to plain text.
+ nbdkit -v -U - sh - --run 'qemu-img map -f raw --output=json $nbd' |
+ jq -c '.[] | {start:.start, length:.length, data:.data, zero:.zero}' \
+ > $out
+ if ! cmp $out $expected; then
+ echo "$0: output did not match expected data"
+ echo "expected:"
+ cat $expected
+ echo "output:"
+ cat $out
+ exit 1
+ fi
+}
+
+# Completely sparse disk.
+cat > $expected <<'EOF'
+{"start":0,"length":65536,"data":false,"zero":true}
+EOF
+do_test <<'EOF'
+case "$1" in
+ get_size) echo 64K ;;
+ can_extents) exit 0 ;;
+ extents)
+ echo "0 64K hole,zero"
+ ;;
+ *) exit 2 ;;
+esac
+EOF
+
+# Completely allocated disk.
+# type field missing means allocated data.
+cat > $expected <<'EOF'
+{"start":0,"length":65536,"data":true,"zero":false}
+EOF
+do_test <<'EOF'
+case "$1" in
+ get_size) echo 64K ;;
+ can_extents) exit 0 ;;
+ extents)
+ echo "0 64K"
+ ;;
+ *) exit 2 ;;
+esac
+EOF
+
+# Completely allocated disk.
+# type=0
+cat > $expected <<'EOF'
+{"start":0,"length":65536,"data":true,"zero":false}
+EOF
+do_test <<'EOF'
+case "$1" in
+ get_size) echo 64K ;;
+ can_extents) exit 0 ;;
+ extents)
+ echo "0 64K 0"
+ ;;
+ *) exit 2 ;;
+esac
+EOF
+
+# Allocated data at the start of a 1M disk.
+cat > $expected <<'EOF'
+{"start":0,"length":32768,"data":true,"zero":false}
+{"start":32768,"length":1015808,"data":false,"zero":true}
+EOF
+do_test <<'EOF'
+case "$1" in
+ get_size) echo 1M ;;
+ can_extents) exit 0 ;;
+ extents)
+ echo "0 32K"
+ echo "32K 1015808 hole,zero"
+ ;;
+ *) exit 2 ;;
+esac
+EOF
+
+# Zeroes at the start of a 1M disk.
+cat > $expected <<'EOF'
+{"start":0,"length":32768,"data":true,"zero":true}
+{"start":32768,"length":32768,"data":false,"zero":true}
+{"start":65536,"length":983040,"data":true,"zero":false}
+EOF
+do_test <<'EOF'
+case "$1" in
+ get_size) echo 1M ;;
+ can_extents) exit 0 ;;
+ extents)
+ echo "0 32K zero"
+ echo "32K 32K hole,zero"
+ echo "64K 983040 "
+ ;;
+ *) exit 2 ;;
+esac
+EOF
+
+# If can_extents is not defined, extents should never be called.
+cat > $expected <<'EOF'
+{"start":0,"length":65536,"data":true,"zero":false}
+EOF
+do_test <<'EOF'
+case "$1" in
+ get_size) echo 64K ;;
+ extents) exit 1 ;;
+ *) exit 2 ;;
+esac
+EOF
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2017 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+
+pidfile=shebang-perl.pid
+sock=`mktemp -u`
+script=$SRCDIR/shebang.pl
+
+if test ! -d "$SRCDIR"; then
+ echo "$0: could not locate shebang.pl"
+ exit 1
+fi
+
+rm -f $pidfile $sock
+cleanup_fn rm -f $pidfile $sock
+
+$script -P $pidfile -U $sock -f -v &
+
+# We may have to wait a short time for the pid file to appear.
+for i in {1..60}; do
+ if test -f $pidfile; then
+ break
+ fi
+ sleep 1
+done
+if ! test -f $pidfile; then
+ echo "$0: PID file was not created"
+ exit 1
+fi
+
+pid="$(cat $pidfile)"
+cleanup_fn kill $pid
+
+# Check the process exists.
+kill -s 0 $pid
+
+# Check the socket was created (and is a socket).
+test -S $sock
+
+# Kill the process.
+kill $pid
+
+# Check the process exits (eventually).
+for i in {1..10}; do
+ if ! kill -s 0 $pid; then
+ break;
+ fi
+ sleep 1
+done
+if kill -s 0 $pid; then
+ echo "$0: process did not exit after sending a signal"
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2017 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+
+pidfile=shebang-python.pid
+sock=`mktemp -u`
+script=$SRCDIR/shebang.py
+
+if test ! -d "$SRCDIR"; then
+ echo "$0: could not locate shebang.py"
+ exit 1
+fi
+
+rm -f $pidfile $sock
+cleanup_fn rm -f $pidfile $sock
+
+$script -P $pidfile -U $sock -f -v &
+
+# We may have to wait a short time for the pid file to appear.
+for i in {1..60}; do
+ if test -f $pidfile; then
+ break
+ fi
+ sleep 1
+done
+if ! test -f $pidfile; then
+ echo "$0: PID file was not created"
+ exit 1
+fi
+
+pid="$(cat $pidfile)"
+cleanup_fn kill $pid
+
+# Check the process exists.
+kill -s 0 $pid
+
+# Check the socket was created (and is a socket).
+test -S $sock
+
+# Kill the process.
+kill $pid
+
+# Check the process exits (eventually).
+for i in {1..10}; do
+ if ! kill -s 0 $pid; then
+ break;
+ fi
+ sleep 1
+done
+if kill -s 0 $pid; then
+ echo "$0: process did not exit after sending a signal"
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2017 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+
+pidfile=shebang-ruby.pid
+sock=`mktemp -u`
+script=./shebang.rb
+
+rm -f $pidfile $sock
+cleanup_fn rm -f $pidfile $sock
+
+$script -P $pidfile -U $sock -f -v &
+
+# We may have to wait a short time for the pid file to appear.
+for i in {1..60}; do
+ if test -f $pidfile; then
+ break
+ fi
+ sleep 1
+done
+if ! test -f $pidfile; then
+ echo "$0: PID file was not created"
+ exit 1
+fi
+
+pid="$(cat $pidfile)"
+cleanup_fn kill $pid
+
+# Check the process exists.
+kill -s 0 $pid
+
+# Check the socket was created (and is a socket).
+test -S $sock
+
+# Kill the process.
+kill $pid
+
+# Check the process exits (eventually).
+for i in {1..10}; do
+ if ! kill -s 0 $pid; then
+ break;
+ fi
+ sleep 1
+done
+if kill -s 0 $pid; then
+ echo "$0: process did not exit after sending a signal"
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env sh
+
+# Assume that the current directory is the tests/ directory.
+# If this fails we're probably running the test from the wrong
+# directory.
+f=test-shell.img
+if [ ! -r $f ]; then
+ echo "cannot find disk image $f" >&2
+ exit 1
+fi
+
+# nbdkit is supposed to set $tmpdir. If it doesn't, it's an error.
+if [ ! -d $tmpdir ]; then
+ echo "\$tmpdir was not set" >&2
+ exit 1
+fi
+
+# Check that SIGPIPE is not ignored unless we want it that way.
+if (type yes) >/dev/null 2>&1; then
+ ignored=$(trap "" 13;
+ ({ yes; echo $? >&3; } | head -c1) 3>&1 >/dev/null 2>&1)
+ default=$(trap - 13;
+ ({ yes; echo $? >&3; } | head -c1) 3>&1 >/dev/null 2>&1)
+ if [ $ignored = $default ]; then
+ echo "SIGPIPE was inherited ignored" >&2
+ exit 1;
+ fi
+fi
+
+case "$1" in
+ open)
+ echo handle
+ ;;
+
+ get_size)
+ stat -L -c '%s' $f || exit 1
+ ;;
+
+ pread)
+ dd iflag=skip_bytes,count_bytes skip=$4 count=$3 if=$f || \
+ exit 1
+ ;;
+
+ pwrite)
+ dd oflag=seek_bytes conv=notrunc seek=$4 of=$f || exit 1
+ ;;
+ can_write)
+ ;;
+
+ flush)
+ sync
+ ;;
+ can_flush)
+ ;;
+
+ trim)
+ fallocate -p -o $4 -l $3 -n $f
+ ;;
+ can_trim)
+ # We can trim if the fallocate command exists.
+ fallocate --help >/dev/null 2>&1 || exit 3
+ ;;
+
+ zero)
+ fallocate -z -o $4 -l $3 -n $f
+ ;;
+ can_zero)
+ # We can zero efficiently if the fallocate command exists.
+ fallocate --help >/dev/null 2>&1 || exit 3
+ ;;
+
+ *)
+ # Unknown methods must exit with code 2.
+ exit 2
+esac
+
+exit 0
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2014-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Check that the -s option can be used from a plain file. This is
+# used when we fuzz nbdkit (see fuzzing/README) so we should try not
+# to break it.
+
+source ./functions.sh
+set -e
+set -x
+
+testcase=$srcdir/../fuzzing/testcase_dir/newstyle-cflags-go
+
+nbdkit -f -v -s memory size=1M <$testcase >/dev/null
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2014 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+requires socat -h
+requires qemu-img --version
+
+sock=`mktemp -u`
+files="$sock single.disk"
+rm -f $files
+
+truncate -s 1G single.disk
+
+socat unix-listen:$sock,reuseaddr,fork \
+ exec:'nbdkit -r -s file single.disk' &
+pid=$!
+
+cleanup ()
+{
+ kill $pid
+ rm -f $files
+}
+cleanup_fn cleanup
+
+# Wait for socat to start up and create the socket.
+for i in {1..10}; do
+ if test -S $sock; then
+ break
+ fi
+ sleep 1
+done
+if ! test -S $sock; then
+ echo "$0: socket was not created"
+ exit 1
+fi
+
+qemu-img info nbd:unix:$sock
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* Test socket activation.
+ *
+ * We cannot use the test framework for this since the framework
+ * always uses the -U flag which is incompatible with socket
+ * activation. Unfortunately this does mean we duplicate some code
+ * from the test framework.
+ *
+ * It's *almost* possible to test this from a shell script
+ * (cf. test-ip.sh) but as far as I can tell setting LISTEN_PID
+ * correctly is impossible from shell.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <signal.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+#include <sys/wait.h>
+
+#define FIRST_SOCKET_ACTIVATION_FD 3
+
+#define NBDKIT_START_TIMEOUT 30 /* seconds */
+
+/* Declare program_name. */
+#if HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME == 1
+#include <errno.h>
+#define program_name program_invocation_short_name
+#else
+#define program_name "nbdkit"
+#endif
+
+static char tmpdir[] = "/tmp/nbdkitXXXXXX";
+static char sockpath[] = "/tmp/nbdkitXXXXXX/sock";
+static char pidpath[] = "/tmp/nbdkitXXXXXX/pid";
+
+static pid_t pid = 0;
+
+static void
+cleanup (void)
+{
+ int status;
+
+ if (pid > 0) {
+ kill (pid, SIGTERM);
+
+ /* Check the status of nbdkit is normal on exit. */
+ if (waitpid (pid, &status, 0) == -1) {
+ perror ("waitpid");
+ _exit (EXIT_FAILURE);
+ }
+ if (WIFEXITED (status) && WEXITSTATUS (status) != 0) {
+ _exit (WEXITSTATUS (status));
+ }
+ if (WIFSIGNALED (status)) {
+ /* Note that nbdkit is supposed to catch the signal we send and
+ * exit cleanly, so the following shouldn't happen.
+ */
+ fprintf (stderr, "nbdkit terminated by signal %d\n", WTERMSIG (status));
+ _exit (EXIT_FAILURE);
+ }
+ if (WIFSTOPPED (status)) {
+ fprintf (stderr, "nbdkit stopped by signal %d\n", WSTOPSIG (status));
+ _exit (EXIT_FAILURE);
+ }
+ }
+
+ unlink (pidpath);
+ unlink (sockpath);
+ rmdir (tmpdir);
+}
+
+int
+main (int argc, char *argv[])
+{
+ int sock;
+ struct sockaddr_un addr;
+ char pid_str[16];
+ size_t i, len;
+ char magic[8];
+
+ if (mkdtemp (tmpdir) == NULL) {
+ perror ("mkdtemp");
+ exit (EXIT_FAILURE);
+ }
+ len = strlen (tmpdir);
+ memcpy (sockpath, tmpdir, len);
+ memcpy (pidpath, tmpdir, len);
+
+ atexit (cleanup);
+
+ /* Open the listening socket which will be passed into nbdkit. */
+ sock = socket (AF_UNIX, SOCK_STREAM /* NB do not use SOCK_CLOEXEC */, 0);
+ if (sock == -1) {
+ perror ("socket");
+ exit (EXIT_FAILURE);
+ }
+
+ addr.sun_family = AF_UNIX;
+ len = strlen (sockpath);
+ memcpy (addr.sun_path, sockpath, len+1 /* trailing \0 */);
+
+ if (bind (sock, (struct sockaddr *) &addr, sizeof addr) == -1) {
+ perror (sockpath);
+ exit (EXIT_FAILURE);
+ }
+
+ if (listen (sock, 1) == -1) {
+ perror ("listen");
+ exit (EXIT_FAILURE);
+ }
+
+ if (sock != FIRST_SOCKET_ACTIVATION_FD) {
+ if (dup2 (sock, FIRST_SOCKET_ACTIVATION_FD) == -1) {
+ perror ("dup2");
+ exit (EXIT_FAILURE);
+ }
+ close (sock);
+ }
+
+ /* Run nbdkit. */
+ pid = fork ();
+ if (pid == -1) {
+ perror ("fork");
+ exit (EXIT_FAILURE);
+ }
+ if (pid == 0) {
+ /* Run nbdkit in the child. */
+ setenv ("LISTEN_FDS", "1", 1);
+ snprintf (pid_str, sizeof pid_str, "%d", (int) getpid ());
+ setenv ("LISTEN_PID", pid_str, 1);
+
+ execlp ("nbdkit",
+ "nbdkit",
+ "-P", pidpath,
+ "-o",
+ "-v",
+ "example1", NULL);
+ perror ("exec: nbdkit");
+ _exit (EXIT_FAILURE);
+ }
+
+ /* We don't need the listening socket now. */
+ close (sock);
+
+ /* Wait for the pidfile to turn up, which indicates that nbdkit has
+ * started up successfully and is ready to serve requests. However
+ * if 'pid' exits in this time it indicates a failure to start up.
+ * Also there is a timeout in case nbdkit hangs.
+ */
+ for (i = 0; i < NBDKIT_START_TIMEOUT; ++i) {
+ if (waitpid (pid, NULL, WNOHANG) == pid)
+ goto early_exit;
+
+ if (kill (pid, 0) == -1) {
+ if (errno == ESRCH) {
+ early_exit:
+ fprintf (stderr,
+ "%s FAILED: nbdkit exited before starting to serve files\n",
+ program_name);
+ pid = 0;
+ exit (EXIT_FAILURE);
+ }
+ perror ("kill");
+ }
+
+ if (access (pidpath, F_OK) == 0)
+ break;
+
+ sleep (1);
+ }
+
+ /* Now nbdkit is supposed to be listening on the Unix domain socket
+ * (which it got via the listening socket that we passed down to it,
+ * not from the path), so we should be able to connect to the Unix
+ * domain socket by its path and receive an NBD magic string.
+ */
+#ifdef SOCK_CLOEXEC
+ sock = socket (AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0);
+#else
+ sock = socket (AF_UNIX, SOCK_STREAM, 0);
+ fcntl (sock, F_SETFD, FD_CLOEXEC);
+#endif
+ if (sock == -1) {
+ perror ("socket");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Reuse addr which was set up above. */
+ if (connect (sock, (struct sockaddr *) &addr, sizeof addr) == -1) {
+ perror (sockpath);
+ exit (EXIT_FAILURE);
+ }
+
+ if (read (sock, magic, 8) != 8) {
+ perror ("read");
+ exit (EXIT_FAILURE);
+ }
+
+ if (memcmp (magic, "NBDMAGIC", 8) != 0) {
+ fprintf (stderr, "%s FAILED: did not read magic string from server\n",
+ program_name);
+ exit (EXIT_FAILURE);
+ }
+
+ close (sock);
+
+ /* Test succeeded. */
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ char *data;
+ size_t i, size;
+
+ if (test_start_nbdkit ("split",
+ "split1", "split2",
+ "file=split3" /* leave file= to test */,
+ NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Check the data in the file is \x01-\x08 repeated 512 times. */
+ data = guestfs_pread_device (g, "/dev/sda", 8 * 512, 0, &size);
+ if (!data)
+ exit (EXIT_FAILURE);
+ if (size != 8 * 512) {
+ fprintf (stderr,
+ "%s FAILED: unexpected size "
+ "(actual: %zu, expected: 512)\n",
+ program_name, size);
+ exit (EXIT_FAILURE);
+ }
+
+ for (i = 0; i < 512 * 8; i += 8) {
+ if (data[i] != 1 || data[i+1] != 2 ||
+ data[i+2] != 3 || data[i+3] != 4 ||
+ data[i+4] != 5 || data[i+5] != 6 ||
+ data[i+6] != 7 || data[i+7] != 8) {
+ fprintf (stderr, "%s FAILED: unexpected data returned at offset %zu\n",
+ program_name, i);
+ exit (EXIT_FAILURE);
+ }
+ }
+
+ free (data);
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+requires sshd -t -f ssh/sshd_config
+requires qemu-img --version
+
+# Check that ssh to localhost will work without any passwords or phrases.
+requires ssh -V
+if ! ssh -o PreferredAuthentications=none,publickey -o StrictHostKeyChecking=no localhost echo </dev/null
+then
+ echo "$0: passwordless/phraseless authentication to localhost not possible"
+ exit 77
+fi
+
+files="ssh.img"
+rm -f $files
+cleanup_fn rm -f $files
+
+`which sshd` -f ssh/sshd_config -D -e &
+sshd_pid=$!
+cleanup_fn kill $sshd_pid
+
+# Get the sshd port number which was randomly assigned.
+port="$(grep ^Port ssh/sshd_config | awk '{print $2}')"
+
+# Run nbdkit with the ssh plugin to copy a file.
+nbdkit -v -D ssh.log=2 -U - \
+ ssh host=localhost $PWD/disk \
+ --run 'qemu-img convert $nbd ssh.img'
+
+# The output should be identical.
+cmp disk ssh.img
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2014 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+# Test nbdkit starts up, forks in the background, writes a PID file,
+# and can be killed.
+
+sock=`mktemp -u`
+rm -f start.pid $sock
+cleanup_fn rm -f start.pid $sock
+
+start_nbdkit -P start.pid -U $sock example1
+pid="$(cat start.pid)"
+
+# Check the process exists.
+kill -s 0 $pid
+
+# Check the socket was created (and is a socket).
+test -S $sock
+
+# Kill the process.
+kill $pid
+
+# Check the process exits (eventually).
+for i in {1..10}; do
+ if ! kill -s 0 $pid; then
+ break;
+ fi
+ sleep 1
+done
+if kill -s 0 $pid; then
+ echo "$0: process did not exit after sending a signal"
+ exit 1
+fi
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2014 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/wait.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+static char data[65536];
+
+int
+main (int argc, char *argv[])
+{
+ pid_t md5pid;
+ guestfs_h *g;
+ int r;
+ size_t i;
+ int pipefd[2];
+ char md5[33];
+ int status;
+
+ unlink ("streaming.fifo");
+ if (mknod ("streaming.fifo", S_IFIFO | 0600, 0) == -1) {
+ perror ("streaming.fifo");
+ exit (EXIT_FAILURE);
+ }
+
+ if (test_start_nbdkit ("streaming", "pipe=streaming.fifo", "size=640k",
+ NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Fork to run a second process which reads from streaming.fifo
+ * and checks that the content is correct.
+ */
+ if (pipe (pipefd) == -1) {
+ perror ("pipe");
+ exit (EXIT_FAILURE);
+ }
+
+ md5pid = fork ();
+ if (md5pid == -1) {
+ perror ("fork");
+ exit (EXIT_FAILURE);
+ }
+
+ if (md5pid == 0) {
+ /* Child: run md5sum on the pipe. */
+ char *argv[] = { "md5sum", NULL };
+
+ close (0);
+ open ("streaming.fifo", O_RDONLY);
+ close (1);
+ dup2 (pipefd[1], 1);
+ close (pipefd[0]);
+
+ execvp ("md5sum", argv);
+ perror ("md5sum");
+ _exit (EXIT_FAILURE);
+ }
+
+ close (pipefd[1]);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* Write linearly to the virtual disk. */
+ memset (data, 1, sizeof data);
+ for (i = 0; i < 10; ++i) {
+ guestfs_pwrite_device (g, "/dev/sda", data, sizeof data,
+ i * sizeof data);
+ }
+
+ if (guestfs_shutdown (g) == -1)
+ exit (EXIT_FAILURE);
+
+ guestfs_close (g);
+
+ /* We have to explicitly kill nbdkit here so that it closes the
+ * pipe.
+ */
+ kill (pid, SIGINT);
+
+ /* Check the hash computed by the child process. */
+ if (read (pipefd[0], md5, 32) != 32) {
+ perror ("read");
+ exit (EXIT_FAILURE);
+ }
+ md5[32] = '\0';
+
+ if (strcmp (md5, "2c7f81c580f7f9eb52c1bd2f6f493b6f") != 0) {
+ fprintf (stderr, "unexpected hash: %s\n", md5);
+ exit (EXIT_FAILURE);
+ }
+
+ if (waitpid (md5pid, &status, 0) == -1) {
+ perror ("waitpid");
+ exit (EXIT_FAILURE);
+ }
+ if (status != 0) {
+ fprintf (stderr, "md5sum subprocess failed\n");
+ exit (EXIT_FAILURE);
+ }
+
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-img --version
+
+if ! qemu-img --help | grep -- --object; then
+ echo "$0: 'qemu-img' command does not have the --object option"
+ exit 77
+fi
+
+# Does the qemu-img binary support PSK?
+if LANG=C qemu-img info --object tls-creds-psk,id=id disk |&
+ grep -sq "invalid object type: tls-creds-psk"
+then
+ echo "$0: 'qemu-img' command does not support TLS-PSK"
+ exit 77
+fi
+
+# Does the nbdkit binary support TLS?
+if ! nbdkit --dump-config | grep -sq tls=yes; then
+ echo "$0: nbdkit built without TLS support"
+ exit 77
+fi
+
+# Did we create the PSK keys file?
+# Probably 'certtool' is missing.
+if [ ! -s keys.psk ]; then
+ echo "$0: PSK keys file was not created by the test harness"
+ exit 77
+fi
+
+# Unfortunately qemu cannot do TLS over a Unix domain socket (nbdkit
+# probably can, although it is not tested). Find an unused port to
+# listen on.
+pick_unused_port
+
+cleanup_fn rm -f tls-psk.pid tls-psk.out
+start_nbdkit -P tls-psk.pid -p $port -n \
+ --tls=require --tls-psk=keys.psk example1
+
+# Run qemu-img against the server.
+LANG=C \
+qemu-img info \
+ --object "tls-creds-psk,id=tls0,endpoint=client,dir=$PWD" \
+ --image-opts "file.driver=nbd,file.host=localhost,file.port=$port,file.tls-creds=tls0" > tls-psk.out
+
+cat tls-psk.out
+
+grep -sq "^file format: raw" tls-psk.out
+grep -sq "^virtual size: 100M" tls-psk.out
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2017 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-img --version
+
+if ! qemu-img --help | grep -- --object; then
+ echo "$0: 'qemu-img' command does not have the --object option"
+ exit 77
+fi
+
+# Does the nbdkit binary support TLS?
+if ! nbdkit --dump-config | grep -sq tls=yes; then
+ echo "$0: nbdkit built without TLS support"
+ exit 77
+fi
+
+# Did we create the PKI files?
+# Probably 'certtool' is missing.
+pkidir="$PWD/pki"
+if [ ! -f "$pkidir/ca-cert.pem" ]; then
+ echo "$0: PKI files were not created by the test harness"
+ exit 77
+fi
+
+# Unfortunately qemu cannot do TLS over a Unix domain socket (nbdkit
+# probably can, although it is not tested). Find an unused port to
+# listen on.
+pick_unused_port
+
+cleanup_fn rm -f tls.pid tls.out
+start_nbdkit -P tls.pid -p $port -n --tls=require \
+ --tls-certificates="$pkidir" example1
+
+# Run qemu-img against the server.
+LANG=C \
+qemu-img info \
+ --object "tls-creds-x509,id=tls0,endpoint=client,dir=$pkidir" \
+ --image-opts "file.driver=nbd,file.host=localhost,file.port=$port,file.tls-creds=tls0" > tls.out
+
+cat tls.out
+
+grep -sq "^file format: raw" tls.out
+grep -sq "^virtual size: 100M" tls.out
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Unfortunately the output of this test depends on the PAGE_SIZE
+# defined in common/sparse/sparse.c and would change (breaking the
+# test) if we ever changed that definition.
+
+source ./functions.sh
+set -e
+set -x
+
+requires jq --version
+requires qemu-img --version
+requires qemu-img map --help
+
+out="test-truncate-extents.out"
+expected="test-truncate-extents.expected"
+files="$out $expected"
+rm -f $files
+cleanup_fn rm -f $files
+
+do_test ()
+{
+ # We use jq to normalize the output and convert it to plain text.
+ nbdkit -U - \
+ --filter=truncate \
+ data data="$1" size="$2" \
+ truncate="$3" \
+ --run 'qemu-img map -f raw --output=json $nbd' |
+ jq -c '.[] | {start:.start, length:.length, data:.data, zero:.zero}' \
+ > $out
+ if ! cmp $out $expected; then
+ echo "$0: output did not match expected data"
+ echo "expected:"
+ cat $expected
+ echo "output:"
+ cat $out
+ exit 1
+ fi
+}
+
+# Completely sparse disk.
+cat > $expected <<'EOF'
+{"start":0,"length":65536,"data":false,"zero":true}
+EOF
+do_test "" 1M 65536
+
+# Completely allocated disk.
+cat > $expected <<'EOF'
+{"start":0,"length":32768,"data":true,"zero":false}
+EOF
+do_test "1 @32768 1 @65536 1 @98304 1" 128K 32768
+
+#----------------------------------------------------------------------
+# The above are the easy cases. Now let's truncate to a larger
+# size which should create a hole at the end.
+
+# Completely sparse disk.
+cat > $expected <<'EOF'
+{"start":0,"length":1048576,"data":false,"zero":true}
+EOF
+do_test "" 65536 1M
+
+# Completely allocated disk.
+cat > $expected <<'EOF'
+{"start":0,"length":512,"data":true,"zero":false}
+{"start":512,"length":1048064,"data":false,"zero":true}
+EOF
+do_test "1" 512 1M
+
+# Zero-length plugin. Unlike nbdkit-zero-plugin, the data plugin
+# advertises extents and so will behave differently.
+cat > $expected <<'EOF'
+{"start":0,"length":0,"data":false,"zero":false}
+EOF
+do_test "" 0 0
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the truncate filter using the pattern plugin.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-io --version
+
+sock=`mktemp -u`
+files="truncate1.out truncate1.pid $sock"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Run nbdkit with pattern plugin and truncate filter in front.
+start_nbdkit -P truncate1.pid -U $sock \
+ --filter=truncate \
+ pattern size=503 \
+ truncate=512
+
+qemu-io -r -f raw "nbd+unix://?socket=$sock" \
+ -c 'r -v 0 512' | grep -E '^[[:xdigit:]]+:' > truncate1.out
+if [ "$(cat truncate1.out)" != "00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08 ................
+00000010: 00 00 00 00 00 00 00 10 00 00 00 00 00 00 00 18 ................
+00000020: 00 00 00 00 00 00 00 20 00 00 00 00 00 00 00 28 ................
+00000030: 00 00 00 00 00 00 00 30 00 00 00 00 00 00 00 38 .......0.......8
+00000040: 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 48 ...............H
+00000050: 00 00 00 00 00 00 00 50 00 00 00 00 00 00 00 58 .......P.......X
+00000060: 00 00 00 00 00 00 00 60 00 00 00 00 00 00 00 68 ...............h
+00000070: 00 00 00 00 00 00 00 70 00 00 00 00 00 00 00 78 .......p.......x
+00000080: 00 00 00 00 00 00 00 80 00 00 00 00 00 00 00 88 ................
+00000090: 00 00 00 00 00 00 00 90 00 00 00 00 00 00 00 98 ................
+000000a0: 00 00 00 00 00 00 00 a0 00 00 00 00 00 00 00 a8 ................
+000000b0: 00 00 00 00 00 00 00 b0 00 00 00 00 00 00 00 b8 ................
+000000c0: 00 00 00 00 00 00 00 c0 00 00 00 00 00 00 00 c8 ................
+000000d0: 00 00 00 00 00 00 00 d0 00 00 00 00 00 00 00 d8 ................
+000000e0: 00 00 00 00 00 00 00 e0 00 00 00 00 00 00 00 e8 ................
+000000f0: 00 00 00 00 00 00 00 f0 00 00 00 00 00 00 00 f8 ................
+00000100: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 01 08 ................
+00000110: 00 00 00 00 00 00 01 10 00 00 00 00 00 00 01 18 ................
+00000120: 00 00 00 00 00 00 01 20 00 00 00 00 00 00 01 28 ................
+00000130: 00 00 00 00 00 00 01 30 00 00 00 00 00 00 01 38 .......0.......8
+00000140: 00 00 00 00 00 00 01 40 00 00 00 00 00 00 01 48 ...............H
+00000150: 00 00 00 00 00 00 01 50 00 00 00 00 00 00 01 58 .......P.......X
+00000160: 00 00 00 00 00 00 01 60 00 00 00 00 00 00 01 68 ...............h
+00000170: 00 00 00 00 00 00 01 70 00 00 00 00 00 00 01 78 .......p.......x
+00000180: 00 00 00 00 00 00 01 80 00 00 00 00 00 00 01 88 ................
+00000190: 00 00 00 00 00 00 01 90 00 00 00 00 00 00 01 98 ................
+000001a0: 00 00 00 00 00 00 01 a0 00 00 00 00 00 00 01 a8 ................
+000001b0: 00 00 00 00 00 00 01 b0 00 00 00 00 00 00 01 b8 ................
+000001c0: 00 00 00 00 00 00 01 c0 00 00 00 00 00 00 01 c8 ................
+000001d0: 00 00 00 00 00 00 01 d0 00 00 00 00 00 00 01 d8 ................
+000001e0: 00 00 00 00 00 00 01 e0 00 00 00 00 00 00 01 e8 ................
+000001f0: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00 ................" ]
+then
+ echo "$0: unexpected pattern:"
+ cat truncate1.out
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Test the truncate filter using the pattern plugin.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-io --version
+
+sock=`mktemp -u`
+files="truncate2.out truncate2.pid $sock"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Run nbdkit with pattern plugin and truncate filter in front.
+start_nbdkit -P truncate2.pid -U $sock \
+ --filter=truncate \
+ pattern size=503 \
+ round-up=512
+
+qemu-io -r -f raw "nbd+unix://?socket=$sock" \
+ -c 'r -v 0 512' | grep -E '^[[:xdigit:]]+:' > truncate2.out
+if [ "$(cat truncate2.out)" != "00000000: 00 00 00 00 00 00 00 00 00 00 00 00 00 00 00 08 ................
+00000010: 00 00 00 00 00 00 00 10 00 00 00 00 00 00 00 18 ................
+00000020: 00 00 00 00 00 00 00 20 00 00 00 00 00 00 00 28 ................
+00000030: 00 00 00 00 00 00 00 30 00 00 00 00 00 00 00 38 .......0.......8
+00000040: 00 00 00 00 00 00 00 40 00 00 00 00 00 00 00 48 ...............H
+00000050: 00 00 00 00 00 00 00 50 00 00 00 00 00 00 00 58 .......P.......X
+00000060: 00 00 00 00 00 00 00 60 00 00 00 00 00 00 00 68 ...............h
+00000070: 00 00 00 00 00 00 00 70 00 00 00 00 00 00 00 78 .......p.......x
+00000080: 00 00 00 00 00 00 00 80 00 00 00 00 00 00 00 88 ................
+00000090: 00 00 00 00 00 00 00 90 00 00 00 00 00 00 00 98 ................
+000000a0: 00 00 00 00 00 00 00 a0 00 00 00 00 00 00 00 a8 ................
+000000b0: 00 00 00 00 00 00 00 b0 00 00 00 00 00 00 00 b8 ................
+000000c0: 00 00 00 00 00 00 00 c0 00 00 00 00 00 00 00 c8 ................
+000000d0: 00 00 00 00 00 00 00 d0 00 00 00 00 00 00 00 d8 ................
+000000e0: 00 00 00 00 00 00 00 e0 00 00 00 00 00 00 00 e8 ................
+000000f0: 00 00 00 00 00 00 00 f0 00 00 00 00 00 00 00 f8 ................
+00000100: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 01 08 ................
+00000110: 00 00 00 00 00 00 01 10 00 00 00 00 00 00 01 18 ................
+00000120: 00 00 00 00 00 00 01 20 00 00 00 00 00 00 01 28 ................
+00000130: 00 00 00 00 00 00 01 30 00 00 00 00 00 00 01 38 .......0.......8
+00000140: 00 00 00 00 00 00 01 40 00 00 00 00 00 00 01 48 ...............H
+00000150: 00 00 00 00 00 00 01 50 00 00 00 00 00 00 01 58 .......P.......X
+00000160: 00 00 00 00 00 00 01 60 00 00 00 00 00 00 01 68 ...............h
+00000170: 00 00 00 00 00 00 01 70 00 00 00 00 00 00 01 78 .......p.......x
+00000180: 00 00 00 00 00 00 01 80 00 00 00 00 00 00 01 88 ................
+00000190: 00 00 00 00 00 00 01 90 00 00 00 00 00 00 01 98 ................
+000001a0: 00 00 00 00 00 00 01 a0 00 00 00 00 00 00 01 a8 ................
+000001b0: 00 00 00 00 00 00 01 b0 00 00 00 00 00 00 01 b8 ................
+000001c0: 00 00 00 00 00 00 01 c0 00 00 00 00 00 00 01 c8 ................
+000001d0: 00 00 00 00 00 00 01 d0 00 00 00 00 00 00 01 d8 ................
+000001e0: 00 00 00 00 00 00 01 e0 00 00 00 00 00 00 01 e8 ................
+000001f0: 00 00 00 00 00 00 01 00 00 00 00 00 00 00 00 00 ................" ]
+then
+ echo "$0: unexpected pattern:"
+ cat truncate2.out
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Regression test for problem with truncate filter and C type
+# promotion, spotted by Eric Blake.
+
+source ./functions.sh
+set -e
+set -x
+
+requires qemu-img --version
+
+sock=`mktemp -u`
+files="truncate3.out truncate3.pid $sock"
+rm -f $files
+cleanup_fn rm -f $files
+
+# Run nbdkit with pattern plugin and truncate filter in front.
+start_nbdkit -P truncate3.pid -U $sock \
+ --filter=truncate \
+ pattern size=5G \
+ round-up=512
+
+LANG=C qemu-img info nbd:unix:$sock > truncate3.out
+if ! grep "virtual size: 5.0G" truncate3.out; then
+ echo "$0: unexpected output from truncate3 regression test:"
+ cat truncate3.out
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018-2019 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+requires test "x$vddkdir" != "x"
+requires test -d "$vddkdir"
+requires test -f "$vddkdir/lib64/libvixDiskLib.so"
+requires qemu-img --version
+
+# VMware only supports i686 or x86_64 so this is fine:
+case `uname -m` in
+ i?86) lib=lib32 ;;
+ x86_64) lib=lib64 ;;
+ *)
+ echo "$0: unsupported architecture"
+ exit 77
+esac
+
+files="test-vddk-real.vmdk test-vddk-real.out"
+rm -f $files
+cleanup_fn rm -f $files
+
+qemu-img create -f vmdk test-vddk-real.vmdk 100M
+
+export old_ld_library_path="$LD_LIBRARY_PATH"
+export LD_LIBRARY_PATH="$vddkdir/$lib:$LD_LIBRARY_PATH"
+
+nbdkit -f -v -U - \
+ --filter=readahead \
+ vddk libdir="$vddkdir" file=test-vddk-real.vmdk \
+ --run '
+ # VDDK library path breaks qemu-img, we must restore the
+ # original path here.
+ export LD_LIBRARY_PATH="$old_ld_library_path"
+ qemu-img convert $nbd -O raw test-vddk-real.out
+'
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+rm -f test-vddk.out
+cleanup_fn rm -f test-vddk.out
+
+LD_LIBRARY_PATH=.libs:$LD_LIBRARY_PATH \
+LIBRARY_PATH=.libs:$LIBRARY_PATH \
+nbdkit vddk --dump-plugin > test-vddk.out
+cat test-vddk.out
+
+grep ^vddk_default_libdir= test-vddk.out
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2016-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+
+cmd="nbdkit --filter offset --filter=cow file --version"
+output="$($cmd)"
+if [[ ! ( "$output" =~ file\ 1\. ) ||
+ ! ( "$output" =~ offset\ 1\. ) ||
+ ! ( "$output" =~ cow\ 1\. ) ]]; then
+ echo "$0: unexpected output from $cmd"
+ echo "$output"
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2016 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+
+output="$(nbdkit file --version)"
+if [[ ! ( "$output" =~ file\ 1\. ) ]]; then
+ echo "$0: unexpected output from nbdkit file --version"
+ echo "$output"
+ exit 1
+fi
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2016 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -e
+set -x
+
+output="$(nbdkit --version)"
+if [[ ! ( "$output" =~ ^nbdkit\ 1\. ) ]]; then
+ echo "$0: unexpected output from nbdkit --version"
+ echo "$output"
+ exit 1
+fi
+
+# Run nbdkit plugin --version for each plugin.
+# However some of these tests are expected to fail.
+test ()
+{
+ vg=; [ "$NBDKIT_VALGRIND" = "1" ] && vg="-valgrind"
+ case "$1$vg" in
+ vddk | vddk-valgrind)
+ echo "$0: skipping $1$vg because VDDK cannot run without special environment variables"
+ ;;
+ python-valgrind | ruby-valgrind | tcl-valgrind)
+ echo "$0: skipping $1$vg because this language doesn't support valgrind"
+ ;;
+ *)
+ nbdkit $1 --version
+ ;;
+ esac
+}
+foreach_plugin test
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "web-server.h"
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ const char *sockpath;
+ size_t n;
+ guestfs_h *g;
+ int r;
+ char *data;
+
+#ifndef HAVE_CURLOPT_UNIX_SOCKET_PATH
+ fprintf (stderr, "%s: curl does not support CURLOPT_UNIX_SOCKET_PATH\n",
+ argv[0]);
+ exit (77);
+#endif
+
+ sockpath = web_server ("disk.xz");
+ if (sockpath == NULL) {
+ fprintf (stderr, "test-xz-curl: could not start web server thread\n");
+ exit (EXIT_FAILURE);
+ }
+
+ /* Start nbdkit. */
+ n = strlen ("unix_socket_path") + 1 + strlen (sockpath) + 1;
+ char usp_param[n];
+ snprintf (usp_param, n, "%s=%s", "unix_socket_path", sockpath);
+ if (test_start_nbdkit ("--filter=xz",
+ "curl", usp_param, "http://localhost/disk.xz",
+ NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_READONLY, 1,
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* disk.xz contains one partition and a test file called "hello.txt" */
+ if (guestfs_mount_ro (g, "/dev/sda1", "/") == -1)
+ exit (EXIT_FAILURE);
+
+ data = guestfs_cat (g, "/hello.txt");
+ if (!data)
+ exit (EXIT_FAILURE);
+
+ if (strcmp (data, "hello,world") != 0) {
+ fprintf (stderr,
+ "%s FAILED: unexpected content of /hello.txt file "
+ "(actual: %s, expected: \"hello,world\")\n",
+ program_name, data);
+ exit (EXIT_FAILURE);
+ }
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <unistd.h>
+
+#include <guestfs.h>
+
+#include "test.h"
+
+int
+main (int argc, char *argv[])
+{
+ guestfs_h *g;
+ int r;
+ char *data;
+
+ if (test_start_nbdkit ("--filter=xz", "file", "disk.xz", NULL) == -1)
+ exit (EXIT_FAILURE);
+
+ g = guestfs_create ();
+ if (g == NULL) {
+ perror ("guestfs_create");
+ exit (EXIT_FAILURE);
+ }
+
+ r = guestfs_add_drive_opts (g, "",
+ GUESTFS_ADD_DRIVE_OPTS_READONLY, 1,
+ GUESTFS_ADD_DRIVE_OPTS_FORMAT, "raw",
+ GUESTFS_ADD_DRIVE_OPTS_PROTOCOL, "nbd",
+ GUESTFS_ADD_DRIVE_OPTS_SERVER, server,
+ -1);
+ if (r == -1)
+ exit (EXIT_FAILURE);
+
+ if (guestfs_launch (g) == -1)
+ exit (EXIT_FAILURE);
+
+ /* disk.xz contains one partition and a test file called "hello.txt" */
+ if (guestfs_mount_ro (g, "/dev/sda1", "/") == -1)
+ exit (EXIT_FAILURE);
+
+ data = guestfs_cat (g, "/hello.txt");
+ if (!data)
+ exit (EXIT_FAILURE);
+
+ if (strcmp (data, "hello,world") != 0) {
+ fprintf (stderr,
+ "%s FAILED: unexpected content of /hello.txt file "
+ "(actual: %s, expected: \"hello,world\")\n",
+ program_name, data);
+ exit (EXIT_FAILURE);
+ }
+
+ guestfs_close (g);
+ exit (EXIT_SUCCESS);
+}
--- /dev/null
+#!/usr/bin/env bash
+# nbdkit
+# Copyright (C) 2017-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+source ./functions.sh
+set -x
+set -e
+
+requires qemu-img --version
+
+files="test-zero.out"
+rm -f $files
+cleanup_fn rm -f $files
+
+nbdkit -U - zero --run 'qemu-img convert $nbd test-zero.out'
+
+# Resulting file should be zero-sized.
+test -f test-zero.out
+! test -s test-zero.out
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdarg.h>
+#include <string.h>
+#include <unistd.h>
+#include <sys/types.h>
+#include <sys/wait.h>
+#include <signal.h>
+#include <errno.h>
+#include <assert.h>
+
+#include "test.h"
+
+/* 'test_start_nbdkit' below makes assumptions about the format of
+ * these strings.
+ */
+#define TEST_NBDKIT_TEMPLATE "/tmp/nbdkitXXXXXX"
+struct test_nbdkit {
+ char tmpdir[ 17 + 1]; /* template, NUL */
+ char sockpath[ 17 + 5 + 1]; /* template, "/sock", NUL */
+ char unixsockpath[5 + 17 + 5 + 1]; /* "unix:", template, "/sock", NUL */
+ char pidpath[ 17 + 4 + 1]; /* template, "/pid", NUL */
+ pid_t pid;
+ struct test_nbdkit *next;
+};
+const struct test_nbdkit template = {
+ .tmpdir = TEST_NBDKIT_TEMPLATE,
+ .sockpath = TEST_NBDKIT_TEMPLATE "/sock",
+ .unixsockpath = "unix:" TEST_NBDKIT_TEMPLATE "/sock",
+ .pidpath = TEST_NBDKIT_TEMPLATE "/pid",
+};
+
+static struct test_nbdkit *head;
+
+pid_t pid = 0;
+const char *sock = NULL;
+const char *server[2] = { NULL, NULL };
+
+static void
+cleanup (void)
+{
+ int status;
+ struct test_nbdkit *next;
+
+ while (head) {
+ if (head->pid > 0) {
+ assert (!pid || pid == head->pid);
+ pid = 0;
+ kill (head->pid, SIGTERM);
+
+ /* Check the status of nbdkit is normal on exit. */
+ if (waitpid (head->pid, &status, 0) == -1) {
+ perror ("waitpid");
+ _exit (EXIT_FAILURE);
+ }
+ if (WIFEXITED (status) && WEXITSTATUS (status) != 0) {
+ _exit (WEXITSTATUS (status));
+ }
+ if (WIFSIGNALED (status)) {
+ /* Note that nbdkit is supposed to catch the signal we send and
+ * exit cleanly, so the following shouldn't happen.
+ */
+ fprintf (stderr, "nbdkit terminated by signal %d\n", WTERMSIG (status));
+ _exit (EXIT_FAILURE);
+ }
+ if (WIFSTOPPED (status)) {
+ fprintf (stderr, "nbdkit stopped by signal %d\n", WSTOPSIG (status));
+ _exit (EXIT_FAILURE);
+ }
+ }
+
+ unlink (head->pidpath);
+ unlink (head->sockpath);
+ rmdir (head->tmpdir);
+
+ next = head->next;
+ free (head);
+ head = next;
+ }
+}
+
+int
+test_start_nbdkit (const char *arg, ...)
+{
+ size_t i, len;
+ struct test_nbdkit *kit = malloc (sizeof *kit);
+
+ if (!kit) {
+ perror ("malloc");
+ return -1;
+ }
+ *kit = template;
+ if (mkdtemp (kit->tmpdir) == NULL) {
+ perror ("mkdtemp");
+ free (kit);
+ return -1;
+ }
+ len = strlen (kit->tmpdir);
+ memcpy (kit->sockpath, kit->tmpdir, len);
+ memcpy (kit->unixsockpath+5, kit->tmpdir, len);
+ memcpy (kit->pidpath, kit->tmpdir, len);
+
+ kit->pid = fork ();
+ if (kit->pid == 0) { /* Child (nbdkit). */
+ const char *p;
+ const int MAX_ARGS = 64;
+ const char *argv[MAX_ARGS+1];
+ va_list args;
+
+ argv[0] = "nbdkit";
+ argv[1] = "-U";
+ argv[2] = kit->sockpath;
+ argv[3] = "-P";
+ argv[4] = kit->pidpath;
+ argv[5] = "-f";
+ argv[6] = "-v";
+ argv[7] = arg;
+ i = 8;
+
+ va_start (args, arg);
+ while ((p = va_arg (args, const char *)) != NULL) {
+ if (i >= MAX_ARGS)
+ abort ();
+ argv[i] = p;
+ ++i;
+ }
+ va_end (args);
+ argv[i] = NULL;
+
+ execvp ("nbdkit", (char **) argv);
+ perror ("exec: nbdkit");
+ _exit (EXIT_FAILURE);
+ }
+
+ /* Ensure nbdkit is killed and temporary files are deleted when the
+ * main program exits.
+ */
+ if (head)
+ kit->next = head;
+ else
+ atexit (cleanup);
+ head = kit;
+ pid = kit->pid;
+ sock = kit->sockpath;
+ server[0] = kit->unixsockpath;
+
+ /* Wait for the pidfile to turn up, which indicates that nbdkit has
+ * started up successfully and is ready to serve requests. However
+ * if 'pid' exits in this time it indicates a failure to start up.
+ * Also there is a timeout in case nbdkit hangs.
+ */
+ for (i = 0; i < NBDKIT_START_TIMEOUT; ++i) {
+ if (waitpid (pid, NULL, WNOHANG) == pid)
+ goto early_exit;
+
+ if (kill (pid, 0) == -1) {
+ if (errno == ESRCH) {
+ early_exit:
+ fprintf (stderr,
+ "%s FAILED: nbdkit exited before starting to serve files\n",
+ program_name);
+ pid = 0;
+ return -1;
+ }
+ perror ("kill");
+ }
+
+ if (access (kit->pidpath, F_OK) == 0)
+ break;
+
+ sleep (1);
+ }
+
+ return 0;
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2013 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+#ifndef NBDKIT_TEST_H
+#define NBDKIT_TEST_H
+
+#include <stdarg.h>
+#include <unistd.h>
+
+#define NBDKIT_START_TIMEOUT 30 /* seconds */
+
+extern pid_t pid; /* PID of most recent nbdkit process */
+extern const char *sock; /* socket of most recent nbdkit process */
+extern const char *server[2]; /* server parameter for add_drive */
+
+/* Can be called more than once (useful for nbd plugin) */
+extern int test_start_nbdkit (const char *arg, ...)
+ __attribute__((__nonnull__ (1)))
+ __attribute__((__sentinel__));
+
+/* Declare program_name. */
+#if HAVE_DECL_PROGRAM_INVOCATION_SHORT_NAME == 1
+#include <errno.h>
+#define program_name program_invocation_short_name
+#else
+#define program_name "nbdkit"
+#endif
+
+#endif /* NBDKIT_TEST_H */
--- /dev/null
+disk = string.rep ('\0', 1024*1024)
+
+-- Lua strings are indexed from 1, which is crazy. This is a
+-- sane substring function.
+function disk_sub (n, len)
+ return disk:sub (n+1, n+len)
+end
+
+function open (readonly)
+ return 1
+end
+
+function get_size (h)
+ return disk:len()
+end
+
+function pread (h, count, offset)
+ return disk_sub(offset, count)
+end
+
+function pwrite (h, buf, offset)
+ -- There's no built-in mutable string type, so this is going
+ -- to be very inefficient.
+ local count = buf:len()
+ local end_len = disk:len() - (offset+count)
+ disk = disk_sub(0, offset) .. buf .. disk_sub(offset+count, end_len)
+end
--- /dev/null
+use strict;
+
+my $disk = "\0" x (1024*1024);
+
+sub config_complete
+{
+}
+
+sub open
+{
+ my $readonly = shift;
+ my $h = { readonly => $readonly };
+ return $h;
+}
+
+sub close
+{
+ my $h = shift;
+}
+
+sub get_size
+{
+ my $h = shift;
+ return length ($disk);
+}
+
+sub can_write
+{
+ my $h = shift;
+ return 1;
+}
+
+sub can_flush
+{
+ my $h = shift;
+ return 1;
+}
+
+sub is_rotational
+{
+ my $h = shift;
+ return 0;
+}
+
+sub can_trim
+{
+ my $h = shift;
+ return 1;
+}
+
+sub pread
+{
+ my $h = shift;
+ my $count = shift;
+ my $offset = shift;
+ return substr ($disk, $offset, $count);
+}
+
+sub pwrite
+{
+ my $h = shift;
+ my $buf = shift;
+ my $count = length ($buf);
+ my $offset = shift;
+ substr ($disk, $offset, $count) = $buf;
+}
+
+sub flush
+{
+ my $h = shift;
+}
+
+sub trim
+{
+ my $h = shift;
+ my $count = shift;
+ my $offset = shift;
+}
--- /dev/null
+import nbdkit
+
+disk = bytearray(1024*1024)
+
+
+def config_complete():
+ print ("set_error = %r" % nbdkit.set_error)
+
+
+def open(readonly):
+ return 1
+
+
+def get_size(h):
+ global disk
+ return len(disk)
+
+
+def can_write(h):
+ return True
+
+
+def can_flush(h):
+ return True
+
+
+def is_rotational(h):
+ return False
+
+
+def can_trim(h):
+ return True
+
+
+def pread(h, count, offset):
+ global disk
+ return disk[offset:offset+count]
+
+
+def pwrite(h, buf, offset):
+ global disk
+ end = offset + len(buf)
+ disk[offset:end] = buf
+
+
+def zero(h, count, offset, may_trim=False):
+ global disk
+ disk[offset:offset+count] = bytearray(count)
+
+
+def flush(h):
+ pass
+
+
+def trim(h, count, offset):
+ pass
--- /dev/null
+$disk = "\0" * (1024*1024);
+
+def config_complete()
+end
+
+def open(readonly)
+ return {}
+end
+
+def get_size(h)
+ return $disk.bytesize
+end
+
+def can_write(h)
+ return true
+end
+
+def can_flush(h)
+ return true
+end
+
+def is_rotational(h)
+ return false
+end
+
+def can_trim(h)
+ return true
+end
+
+def pread(h, count, offset)
+ return $disk.byteslice(offset, count)
+end
+
+def pwrite(h, buf, offset)
+ # Is this using bytes or chars? XXX
+ $disk[offset, buf.length] = buf
+end
+
+def flush(h)
+end
+
+def trim(h, count, offset)
+end
--- /dev/null
+# XXX This actually creates a Unicode (UCS-2) array. It's also rather
+# slow to run. It's possible we should be using a list instead.
+set disk [string repeat "\u0000" [expr 1024*1024]]
+
+proc plugin_open {readonly} {
+ return 1
+}
+
+proc get_size {h} {
+ global disk
+
+ return [string length $disk]
+}
+
+proc pread {h count offset} {
+ global disk
+
+ set last [expr $offset+$count-1]
+ return [string range $disk $offset $last]
+}
+
+proc pwrite {h buf offset} {
+ global disk
+
+ set count [string length $buf]
+ set last [expr $offset+$count-1]
+ set disk [string replace $disk $offset $last $buf]
+}
--- /dev/null
+type handle = {
+ disk : bytes; (* The disk image. *)
+}
+
+let test_load () =
+ NBDKit.debug "test ocaml plugin loaded"
+
+let test_unload () =
+ NBDKit.debug "test ocaml plugin unloaded"
+
+let params = ref []
+
+let test_config k v =
+ params := (k, v) :: !params
+
+let test_config_complete () =
+ let params = List.rev !params in
+ assert (params = [ "a", "1"; "b", "2"; "c", "3" ])
+
+let test_open readonly =
+ NBDKit.debug "test ocaml plugin handle opened readonly=%b" readonly;
+ let disk = Bytes.make (1024*1024) '\000' in
+ { disk }
+
+let test_close h =
+ ()
+
+let test_get_size h =
+ Int64.of_int (Bytes.length h.disk)
+
+let test_pread h buf offset _ =
+ let len = Bytes.length buf in
+ Bytes.blit h.disk (Int64.to_int offset) buf 0 len
+
+let test_pwrite h buf offset _ =
+ let len = String.length buf in
+ String.blit buf 0 h.disk (Int64.to_int offset) len
+
+let plugin = {
+ NBDKit.default_callbacks with
+ NBDKit.name = "testocaml";
+ version = "1.0";
+
+ load = Some test_load;
+ unload = Some test_unload;
+ config = Some test_config;
+ config_complete = Some test_config_complete;
+
+ open_connection = Some test_open;
+ close = Some test_close;
+ get_size = Some test_get_size;
+ pread = Some test_pread;
+ pwrite = Some test_pwrite;
+}
+
+let thread_model = NBDKit.THREAD_MODEL_SERIALIZE_CONNECTIONS
+
+let () = NBDKit.register_plugin thread_model plugin
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* See web-server.h */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdint.h>
+#include <inttypes.h>
+#include <string.h>
+#include <fcntl.h>
+#include <unistd.h>
+#include <errno.h>
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/socket.h>
+#include <sys/un.h>
+
+#include <pthread.h>
+
+static char tmpdir[] = "/tmp/wsXXXXXX";
+static char sockpath[] = "............./sock";
+static int listen_sock = -1;
+static int fd = -1;
+static struct stat statbuf;
+static char request[16384];
+
+static void *start_web_server (void *arg);
+static void handle_requests (int s);
+static void handle_request (int s, bool headers_only);
+static void xwrite (int s, const char *buf, size_t len);
+static void xpread (int fd, char *buf, size_t count, off_t offset);
+
+static void
+cleanup (void)
+{
+ if (fd >= 0)
+ close (fd);
+ if (listen_sock >= 0)
+ close (listen_sock);
+ unlink (sockpath);
+ rmdir (tmpdir);
+}
+
+const char *
+web_server (const char *filename)
+{
+ struct sockaddr_un addr;
+ pthread_t thread;
+ int err;
+
+ /* Open the file. */
+ fd = open (filename, O_RDONLY|O_CLOEXEC);
+ if (fd == -1) {
+ perror (filename);
+ return NULL;
+ }
+ if (fstat (fd, &statbuf) == -1) {
+ perror ("stat");
+ goto err1;
+ }
+
+ /* Create the temporary directory for the socket. */
+ if (mkdtemp (tmpdir) == NULL) {
+ perror ("mkdtemp");
+ goto err1;
+ }
+
+ /* Create the listening socket for the web server. */
+ memcpy (sockpath, tmpdir, strlen (tmpdir));
+ listen_sock = socket (AF_UNIX, SOCK_STREAM|SOCK_CLOEXEC, 0);
+ if (listen_sock == -1) {
+ perror ("socket");
+ goto err2;
+ }
+
+ addr.sun_family = AF_UNIX;
+ memcpy (addr.sun_path, sockpath, strlen (sockpath) + 1);
+ if (bind (listen_sock, (struct sockaddr *) &addr, sizeof addr) == -1) {
+ perror (sockpath);
+ goto err3;
+ }
+
+ if (listen (listen_sock, SOMAXCONN) == -1) {
+ perror ("listen");
+ goto err4;
+ }
+
+ /* Run the web server in a separate thread. */
+ err = pthread_create (&thread, NULL, start_web_server, NULL);
+ if (err) {
+ errno = err;
+ perror ("pthread_create");
+ goto err4;
+ }
+ err = pthread_detach (thread);
+ if (err) {
+ errno = err;
+ perror ("pthread_detach");
+ goto err4;
+ }
+
+ atexit (cleanup);
+
+ return sockpath;
+
+ err4:
+ unlink (sockpath);
+ err3:
+ close (listen_sock);
+ err2:
+ rmdir (tmpdir);
+ err1:
+ close (fd);
+ return NULL;
+}
+
+static void *
+start_web_server (void *arg)
+{
+ int s;
+
+ fprintf (stderr, "web server: listening on %s\n", sockpath);
+
+ for (;;) {
+ s = accept (listen_sock, NULL, NULL);
+ if (s == -1) {
+ perror ("accept");
+ exit (EXIT_FAILURE);
+ }
+ handle_requests (s);
+ }
+}
+
+static void
+handle_requests (int s)
+{
+ size_t r, n, sz;
+ bool eof = false;
+
+ fprintf (stderr, "web server: accepted connection\n");
+
+ while (!eof) {
+ /* Read request until we see "\r\n\r\n" (end of headers) or EOF. */
+ n = 0;
+ for (;;) {
+ if (n >= sizeof request - 1 /* allow one byte for \0 */) {
+ fprintf (stderr, "web server: request too long\n");
+ exit (EXIT_FAILURE);
+ }
+ sz = sizeof request - n - 1;
+ r = read (s, &request[n], sz);
+ if (r == -1) {
+ perror ("read");
+ exit (EXIT_FAILURE);
+ }
+ if (r == 0) {
+ eof = true;
+ break;
+ }
+ n += r;
+ request[n] = '\0';
+ if (strstr (request, "\r\n\r\n"))
+ break;
+ }
+
+ if (n == 0)
+ continue;
+
+ fprintf (stderr, "web server: request:\n%s", request);
+
+ /* HEAD or GET request? */
+ if (strncmp (request, "HEAD ", 5) == 0)
+ handle_request (s, true);
+ else if (strncmp (request, "GET ", 4) == 0)
+ handle_request (s, false);
+ else {
+ /* Return 405 Method Not Allowed. */
+ const char response[] =
+ "HTTP/1.1 405 Method Not Allowed\r\n"
+ "Content-Length: 0\r\n"
+ "Connection: close\r\n"
+ "\r\n";
+ xwrite (s, response, strlen (response));
+ eof = true;
+ break;
+ }
+ }
+
+ close (s);
+}
+
+static void
+handle_request (int s, bool headers_only)
+{
+ uint64_t offset, length, end;
+ const char *p;
+ const char response1_ok[] = "HTTP/1.1 200 OK\r\n";
+ const char response1_partial[] = "HTTP/1.1 206 Partial Content\r\n";
+ const char response2[] =
+ "Accept-Ranges: bytes\r\n"
+ "Connection: keep-alive\r\n"
+ "Content-Type: application/octet-stream\r\n";
+ char response3[64];
+ const char response4[] = "\r\n";
+ char *data;
+
+ /* If there's no Range request header then send the full size as the
+ * content-length.
+ */
+ p = strcasestr (request, "\r\nRange: bytes=");
+ if (p == NULL) {
+ offset = 0;
+ length = statbuf.st_size;
+ xwrite (s, response1_ok, strlen (response1_ok));
+ }
+ else {
+ p += 15;
+ if (sscanf (p, "%" SCNu64 "-%" SCNu64, &offset, &end) != 2) {
+ fprintf (stderr, "web server: could not parse "
+ "range request from curl client\n");
+ exit (EXIT_FAILURE);
+ }
+ /* Unclear but "Range: bytes=0-4" means bytes 0-3. '4' is the
+ * byte beyond the end of the range.
+ */
+ length = end - offset;
+ xwrite (s, response1_partial, strlen (response1_partial));
+ }
+
+ xwrite (s, response2, strlen (response2));
+ snprintf (response3, sizeof response3,
+ "Content-Length: %" PRIu64 "\r\n", length);
+ xwrite (s, response3, strlen (response3));
+ xwrite (s, response4, strlen (response4));
+
+ if (headers_only)
+ return;
+
+ /* Send the file content. */
+ data = malloc (length);
+ if (data == NULL) {
+ perror ("malloc");
+ exit (EXIT_FAILURE);
+ }
+
+ xpread (fd, data, length, offset);
+ xwrite (s, data, length);
+
+ free (data);
+}
+
+static void
+xwrite (int s, const char *buf, size_t len)
+{
+ ssize_t r;
+
+ while (len > 0) {
+ r = write (s, buf, len);
+ if (r == -1) {
+ perror ("write");
+ exit (EXIT_FAILURE);
+ }
+ buf += r;
+ len -= r;
+ }
+}
+
+static void
+xpread (int fd, char *buf, size_t count, off_t offset)
+{
+ ssize_t r;
+
+ while (count > 0) {
+ r = pread (fd, buf, count, offset);
+ if (r == -1) {
+ perror ("read");
+ exit (EXIT_FAILURE);
+ }
+ if (r == 0) {
+ fprintf (stderr, "pread: unexpected end of file\n");
+ exit (EXIT_FAILURE);
+ }
+ buf += r;
+ count -= r;
+ offset += r;
+ }
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/* This implements a basic web server supporting range requests. Note
+ * that its only purpose is to answer queries from libcurl over a Unix
+ * domain socket. Any use outside that extremely narrow one will
+ * probably not work.
+ *
+ * It is also not written with security in mind and therefore should
+ * only be used for testing over a hidden socket. In the context of
+ * the nbdkit tests this assumption is sound.
+ */
+
+#ifndef NBDKIT_WEB_SERVER_H
+#define NBDKIT_WEB_SERVER_H
+
+/* Starts a web server in a background thread. The web server will
+ * serve 'filename' (only) - the URL in requests is ignored.
+ *
+ * Returns the name of the private Unix domain socket which can be
+ * used to connect to this web server (using Curl's UNIX_SOCKET_PATH
+ * feature).
+ *
+ * The thread will run until the program exits. The Unix socket is
+ * cleaned up automatically on exit. Note that the returned string
+ * must NOT be freed by the main program.
+ */
+extern const char *web_server (const char *filename)
+ __attribute__((__nonnull__ (1)));
+
+#endif /* NBDKIT_WEB_SERVER_H */
--- /dev/null
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+include $(top_srcdir)/common-rules.mk
+
+suppressions_files = $(wildcard $(srcdir)/*.suppressions)
+
+EXTRA_DIST = $(suppressions_files)
+
+noinst_DATA = suppressions
+
+suppressions: $(suppressions_files)
+ rm -f $@ $@-t
+ cat $^ > $@-t
+ mv $@-t $@
+ chmod 0444 $@
+
+DISTCLEANFILES = suppressions
--- /dev/null
+# Makefile.in generated by automake 1.16.1 from Makefile.am.
+# @configure_input@
+
+# Copyright (C) 1994-2018 Free Software Foundation, Inc.
+
+# This Makefile.in is free software; the Free Software Foundation
+# gives unlimited permission to copy and/or distribute it,
+# with or without modifications, as long as this notice is preserved.
+
+# This program is distributed in the hope that it will be useful,
+# but WITHOUT ANY WARRANTY, to the extent permitted by law; without
+# even the implied warranty of MERCHANTABILITY or FITNESS FOR A
+# PARTICULAR PURPOSE.
+
+@SET_MAKE@
+
+# nbdkit
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# nbdkit
+# Copyright (C) 2013-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+VPATH = @srcdir@
+am__is_gnu_make = { \
+ if test -z '$(MAKELEVEL)'; then \
+ false; \
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+.NOEXPORT:
--- /dev/null
+# ext2fs valgrind suppressions
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# The error table is always leaked.
+{
+ ext2fs_1
+ Memcheck:Leak
+ fun:malloc
+ fun:initialize_ext2_error_table_r
+}
--- /dev/null
+# glibc valgrind suppressions
+# Copyright (C) 2016-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Allow thread-local storage from pthread_create to leak.
+{
+ glibc_1
+ Memcheck:Leak
+ fun:calloc
+ ...
+ fun:_dl_allocate_tls
+}
+
+# Suppress leaks from dlopen. When running under valgrind we
+# deliberately don't run dlclose because otherwise valgrind cannot
+# print symbols. So it's expected that dlopen will leak.
+{
+ glibc_2
+ Memcheck:Leak
+ ...
+ obj:/usr/lib*/libdl-*
+}
+
+# bindtextdomain leaks.
+{
+ glibc_3
+ Memcheck:Leak
+ ...
+ fun:bindtextdomain
+}
+
+# Both gmtime_r and locatime_r leak some sort of timezone-related
+# struct inside glibc. These are used by the log filter and the
+# floppy plugin.
+{
+ glibc_4
+ Memcheck:Leak
+ fun:malloc
+ ...
+ fun:tzset_internal
+}
+
+# __printf_chk leaks.
+{
+ glibc_5
+ Memcheck:Leak
+ fun:malloc
+ ...
+ fun:__printf_chk
+}
+
+# iconv is very leaky, even if we close the handle.
+{
+ glibc_6
+ Memcheck:Leak
+ fun:malloc
+ ...
+ fun:__gconv_open
+}
+
+{
+ glibc_7
+ Memcheck:Leak
+ fun:calloc
+ ...
+ fun:__gconv_open
+}
+
+# getaddrinfo leaks a memory allocation even though we
+# call freeaddrinfo.
+{
+ glibc_8
+ Memcheck:Leak
+ fun:malloc
+ ...
+ fun:__check_pf
+ fun:getaddrinfo
+}
--- /dev/null
+# nbdkit valgrind suppressions
+# Copyright (C) 2016-2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# This is a fairly unavoidable leak which happens when we fork
+# into the background. The foreground process exits, but does
+# not free the malloc'd list of sockets.
+{
+ nbdkit_1
+ Memcheck:Leak
+ fun:malloc
+ fun:bind_unix_socket
+}
+
+# Accepting a connection starts a thread (which allocates a thread
+# stack). However if we get a signal then there's no way to cleanly
+# exit all threads in progress, so the stack leaks.
+{
+ nbdkit_2
+ Memcheck:Leak
+ ...
+ fun:allocate_stack
+}
+
+# close methods are not guaranteed to be called if a connection is in
+# progress when the server is being shut down, so leaks in various
+# *_open functions are fairly inevitable. We simply have to check by
+# hand that the following leaks are not possible under normal
+# circumstances, and then add them to this list.
+{
+ nbdkit_3
+ Memcheck:Leak
+ fun:malloc
+ fun:error_open
+ fun:filter_open
+}
+
+{
+ nbdkit_4
+ Memcheck:Leak
+ fun:malloc
+ fun:file_open
+ fun:plugin_open
+}
+
+{
+ nbdkit_5
+ Memcheck:Leak
+ fun:malloc
+ fun:memory_open
+ fun:plugin_open
+}
+
+{
+ nbdkit_6
+ Memcheck:Leak
+ fun:malloc
+ fun:null_open
+ fun:plugin_open
+}
+
+{
+ nbdkit_7
+ Memcheck:Leak
+ fun:malloc
+ fun:partition_open
+ fun:filter_open
+}
--- /dev/null
+# Perl valgrind suppressions
+# Copyright (C) 2018 Red Hat Inc.
+#
+# Redistribution and use in source and binary forms, with or without
+# modification, are permitted provided that the following conditions are
+# met:
+#
+# * Redistributions of source code must retain the above copyright
+# notice, this list of conditions and the following disclaimer.
+#
+# * Redistributions in binary form must reproduce the above copyright
+# notice, this list of conditions and the following disclaimer in the
+# documentation and/or other materials provided with the distribution.
+#
+# * Neither the name of Red Hat nor the names of its contributors may be
+# used to endorse or promote products derived from this software without
+# specific prior written permission.
+#
+# THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+# ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+# THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+# PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+# CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+# SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+# LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+# USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+# ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+# OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+# OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+# SUCH DAMAGE.
+
+# Perl leaks lots of memory by design.
+{
+ perl_1
+ Memcheck:Leak
+ fun:malloc
+ ...
+ fun:perl_construct
+}
+
+{
+ perl_2
+ Memcheck:Leak
+ fun:realloc
+ ...
+ fun:perl_construct
+}
--- /dev/null
+/* nbdkit
+ * Copyright (C) 2017-2018 Red Hat Inc.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions are
+ * met:
+ *
+ * * Redistributions of source code must retain the above copyright
+ * notice, this list of conditions and the following disclaimer.
+ *
+ * * Redistributions in binary form must reproduce the above copyright
+ * notice, this list of conditions and the following disclaimer in the
+ * documentation and/or other materials provided with the distribution.
+ *
+ * * Neither the name of Red Hat nor the names of its contributors may be
+ * used to endorse or promote products derived from this software without
+ * specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY RED HAT AND CONTRIBUTORS ''AS IS'' AND
+ * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A
+ * PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL RED HAT OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+ * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+ * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
+ * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
+ * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
+ * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
+ * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+ * SUCH DAMAGE.
+ */
+
+/*------------------------------------------------------------
+ * This is not nbdkit. This is a wrapper which lets you run nbdkit
+ * from the source directory without installing nbdkit.
+ *
+ * You can use either:
+ *
+ * ./nbdkit file [arg=value] [arg=value] ...
+ *
+ * or:
+ *
+ * /path/to/nbdkit file [arg=value] [arg=value] ...
+ *
+ * or you can set $PATH to include the nbdkit source directory and run
+ * the bare "nbdkit" command without supplying the full path.
+ *
+ * The wrapper modifies the bare plugin name (eg. "file") to be the
+ * full path to the locally compiled plugin. If you don't use this
+ * program and run server/nbdkit directly then it will pick up the
+ * globally installed plugins which is usually not what you want.
+ *
+ * This program is also used to run the tests (make check).
+ *
+ * You can enable valgrind by setting NBDKIT_VALGRIND=1 (this
+ * is mainly used by the internal tests).
+ *
+ * You can enable debugging by setting NBDKIT_GDB=1
+ *------------------------------------------------------------
+ */
+
+#include <config.h>
+
+#include <stdio.h>
+#include <stdlib.h>
+#include <stdbool.h>
+#include <stdarg.h>
+#include <string.h>
+#include <unistd.h>
+#include <getopt.h>
+#include <limits.h>
+#include <time.h>
+
+#include "options.h"
+
+/* Construct an array of parameters passed through to real nbdkit. */
+static const char **cmd;
+static size_t len;
+
+/* Plugins written in scripting languages (only Perl right now) need
+ * to be rewritten on the command line in a different way from plugins
+ * written in C. So we have to list those here.
+ */
+static bool
+is_perl_plugin (const char *name)
+{
+ return strcmp (name, "example4") == 0 || strcmp (name, "tar") == 0;
+}
+
+static void
+passthru (const char *s)
+{
+ cmd = realloc (cmd, (len+1) * sizeof (const char *));
+ if (cmd == NULL)
+ abort ();
+ cmd[len] = s;
+ ++len;
+}
+
+static void __attribute__((format (printf, 1, 2)))
+passthru_format (const char *fs, ...)
+{
+ va_list args;
+ char *str;
+
+ va_start (args, fs);
+ if (vasprintf (&str, fs, args) == -1)
+ abort ();
+ va_end (args);
+ passthru (str);
+}
+
+static void
+end_passthru (void)
+{
+ passthru (NULL);
+}
+
+static void
+print_command (void)
+{
+ size_t i;
+
+ if (len > 0)
+ fprintf (stderr, "%s", cmd[0]);
+ for (i = 1; i < len && cmd[i] != NULL; ++i)
+ fprintf (stderr, " %s", cmd[i]);
+ fprintf (stderr, "\n");
+}
+
+int
+main (int argc, char *argv[])
+{
+ bool verbose = false;
+ char *s;
+ time_t t;
+ unsigned tu;
+ char ts[32];
+
+ /* If NBDKIT_VALGRIND=1 is set in the environment, then we run the
+ * program under valgrind. This is used by the tests. Similarly if
+ * NBDKIT_GDB=1 is set, we run the program under GDB, useful during
+ * development.
+ */
+ s = getenv ("NBDKIT_VALGRIND");
+ if (s && strcmp (s, "1") == 0) {
+ passthru (VALGRIND);
+ passthru ("--vgdb=no");
+ passthru ("--leak-check=full");
+ passthru ("--show-leak-kinds=all");
+ passthru ("--error-exitcode=119");
+ passthru_format ("--suppressions=%s/valgrind/suppressions", builddir);
+ passthru ("--trace-children=no");
+ passthru ("--run-libc-freeres=no");
+ passthru ("--num-callers=100");
+ /* This is a temporary workaround until RHBZ#1662656 is fixed: */
+ passthru ("--read-inline-info=no");
+ }
+ else {
+ s = getenv ("NBDKIT_GDB");
+ if (s && strcmp (s, "1") == 0) {
+ passthru ("gdb");
+ passthru ("--args");
+ }
+ }
+
+ /* Absolute path of the real nbdkit command. */
+ passthru_format ("%s/server/nbdkit", builddir);
+
+ /* Option parsing. We don't really parse options here. We are only
+ * interested in which options have arguments and which need
+ * rewriting.
+ */
+ for (;;) {
+ int c;
+ int long_index = -1;
+ bool is_long_option;
+
+ c = getopt_long (argc, argv, short_options, long_options, &long_index);
+ if (c == -1)
+ break;
+
+ if (c == '?') /* getopt prints an error */
+ exit (EXIT_FAILURE);
+
+ /* long_index is only set if it's an actual long option. */
+ is_long_option = long_index >= 0;
+
+ /* Verbose is special because we will print the final command. */
+ if (c == 'v') {
+ verbose = true;
+ if (is_long_option)
+ passthru ("--verbose");
+ else
+ passthru ("-v");
+ }
+ /* Filters can be rewritten if they are a short name. */
+ else if (c == FILTER_OPTION) {
+ if (is_short_name (optarg))
+ passthru_format ("--filter=%s/filters/%s/.libs/nbdkit-%s-filter.so",
+ builddir, optarg, optarg);
+ else
+ passthru_format ("--filter=%s", optarg);
+ }
+ /* Any long option. */
+ else if (is_long_option) {
+ if (optarg) /* Long option which takes an argument. */
+ passthru_format ("--%s=%s", long_options[long_index].name, optarg);
+ else /* Long option which takes no argument. */
+ passthru_format ("--%s", long_options[long_index].name);
+ }
+ /* Any short option. */
+ else {
+ passthru_format ("-%c", c);
+ if (optarg)
+ passthru (optarg);
+ }
+ }
+
+ /* Are there any non-option arguments? */
+ if (optind < argc) {
+ /* Ensure any further parameters can never be parsed as options by
+ * real nbdkit.
+ */
+ passthru ("--");
+
+ /* The first non-option argument is the plugin name. If it is a
+ * short name then rewrite it.
+ */
+ if (is_short_name (argv[optind])) {
+ /* Special plugins written in Perl. */
+ if (is_perl_plugin (argv[optind])) {
+ passthru_format ("%s/plugins/perl/.libs/nbdkit-perl-plugin.so",
+ builddir);
+ passthru_format ("%s/plugins/%s/nbdkit-%s-plugin",
+ builddir, argv[optind], argv[optind]);
+ }
+ else {
+ passthru_format ("%s/plugins/%s/.libs/nbdkit-%s-plugin.so",
+ builddir, argv[optind], argv[optind]);
+ }
+ ++optind;
+ }
+
+ /* Everything else is passed through without rewriting. */
+ while (optind < argc) {
+ passthru (argv[optind]);
+ ++optind;
+ }
+ }
+
+ end_passthru ();
+ if (verbose)
+ print_command ();
+
+ /* This is a cheap way to find some use-after-free and uninitialized
+ * read problems when using glibc, and doesn't affect normal
+ * operation or other libc. We don't overwrite existing values so
+ * this can be disabled or overridden at runtime.
+ */
+ setenv ("MALLOC_CHECK_", "1", 0);
+ time (&t);
+ tu = t;
+ tu %= 255;
+ tu++;
+ snprintf (ts, sizeof ts, "%u", tu);
+ setenv ("MALLOC_PERTURB_", ts, 0);
+
+ /* Run the final command. */
+ execvp (cmd[0], (char **) cmd);
+ perror (cmd[0]);
+ exit (EXIT_FAILURE);
+}
projects / nbdkit.git / commitdiff