[Bug libc/2418] New: getcwd() print an assertion for a path greater than MAX_PATH

["aurelien at aurel32 dot net" <sourceware-bugzilla@sourceware.org>]

Here is the code which causes problem, in sysdeps/unix/sysv/linux/getcwd.c :

      /* It should never happen that the `getcwd' syscall failed because
         the buffer is too small if we allocated the buffer ourselves
         large enough.  */
      assert (errno != ERANGE || buf != NULL || size != 0);

The buffer allocated by the code before is of size MAX_PATH. So if the actual
size of the path on the filesystem is greater than MAX_PATH, an assertion is
printed.

That proves that it could happen! I suggest simply removing the assertion, as
the function then just exits with the error code.

Note that the problem only occurs on ia64, on other platforms the error number
returned is ENAMETOOLONG (see bug 2417)

-- 
           Summary: getcwd() print an assertion for a path greater than
                    MAX_PATH
           Product: glibc
           Version: 2.3.6
            Status: NEW
          Severity: normal
          Priority: P2
         Component: libc
        AssignedTo: drepper at redhat dot com
        ReportedBy: aurelien at aurel32 dot net
                CC: glibc-bugs at sources dot redhat dot com
 GCC build triplet: ia64-unknown-linux-gnu
  GCC host triplet: ia64-unknown-linux-gnu
GCC target triplet: ia64-unknown-linux-gnu


http://sourceware.org/bugzilla/show_bug.cgi?id=2418

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