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authorUlrich Drepper <drepper@redhat.com>2008-07-26 23:42:14 +0000
committerUlrich Drepper <drepper@redhat.com>2008-07-26 23:42:14 +0000
commitc4a710b6b00590e2a4d852beea72cd5a69d3a7bb (patch)
treef91461f899ddd7b18d32a68c9ad9d3ba7f3c0981 /libio
parent31f3b159e3cb07c2733fd7662da6f1abd689ee3f (diff)
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[BZ #6771]
	* libio/fileops.c (_IO_new_file_attach): Preserve errno around
	success call of _IO_SEEKOFF or calls which failed because the
	descriptor is for a pipe.
Diffstat (limited to 'libio')
-rw-r--r--libio/fileops.c4
1 files changed, 3 insertions, 1 deletions
diff --git a/libio/fileops.c b/libio/fileops.c
index 95cd2d64c9..f5b256998d 100644
--- a/libio/fileops.c
+++ b/libio/fileops.c
@@ -1,4 +1,4 @@
-/* Copyright (C) 1993, 1995, 1997-2005, 2006, 2007
+/* Copyright (C) 1993, 1995, 1997-2005, 2006, 2007, 2008
    Free Software Foundation, Inc.
    This file is part of the GNU C Library.
    Written by Per Bothner <bothner@cygnus.com>.
@@ -428,9 +428,11 @@ _IO_new_file_attach (fp, fd)
   /* Get the current position of the file. */
   /* We have to do that since that may be junk. */
   fp->_offset = _IO_pos_BAD;
+  int save_errno = errno;
   if (_IO_SEEKOFF (fp, (_IO_off64_t)0, _IO_seek_cur, _IOS_INPUT|_IOS_OUTPUT)
       == _IO_pos_BAD && errno != ESPIPE)
     return NULL;
+  errno = save_errno;
   return fp;
 }
 INTDEF2(_IO_new_file_attach, _IO_file_attach)