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 a757dab9651c98c24364e298c11819852218f4d5..d7827589d03967cb3741728a32bba7c79f7b614e 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;
@@ -308,13 +303,6 @@ __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)