[PATCH] Allow unknown root directory.

To be efficient, the remap translator simply returns ports from the underlying
filesystem, and thus the root directory found through browsing '..' is the
underlying root, not the remap root. This should not be a reason for getcwd to
fail.

* sysdeps/mach/hurd/getcwd.c (_hurd_canonicalize_directory_name_internal): Do
not remove the heading slash if we got an unknown root directory.
(__getcwd): Do not fail with EGRATUITOUS if we got an unknown root directory.

Signed-off-by: Samuel Thibault <samuel.thibault@ens-lyon.org>
Gbp-Pq: Topic hurd-i386
Gbp-Pq: Name tg-remap_getcwd.diff

diff --git a/sysdeps/mach/hurd/getcwd.c b/sysdeps/mach/hurd/getcwd.c
index 1b9381d55efee45d1cb5bb11b17f6b999cbc4c1c..f98b8c049d32552255d2db037840ff8bf5a435db 100644 (file)
--- a/sysdeps/mach/hurd/getcwd.c
+++ b/sysdeps/mach/hurd/getcwd.c
@@ -266,11 +266,6 @@ __hurd_canonicalize_directory_name_internal (file_t thisdir,
        So the root is our current directory.  */
     *--file_namep = '/';
 
-  if (thisid != rootid)
-    /* We did not get to our root directory. The returned name should
-       not begin with a slash.  */
-    ++file_namep;
-
   memmove (file_name, file_namep, file_name + size - file_namep);
   cleanup ();
   return file_name;
@@ -309,13 +304,6 @@ __getcwd (char *buf, size_t size)
     __USEPORT (CWDIR,
               __hurd_canonicalize_directory_name_internal (port,
                                                            buf, size));
-  if (cwd && cwd[0] != '/')
-    {
-      /* `cwd' is an unknown root directory.  */
-      if (buf == NULL)
-         free (cwd);
-      return __hurd_fail (EGRATUITOUS), NULL;
-    }
   return cwd;
 }
 weak_alias (__getcwd, getcwd)