glibc/stdio-common/tmpnam_r.c
Ulrich Drepper e5448d7ad2 Update.
2000-09-26  Ulrich Drepper  <drepper@redhat.com>

	* sysdeps/unix/sysv/linux/gethostid.c (sethostid): Use O_TRUNC to
	remove possible garbage at the end of the file.

	* stdio-common/tmpnam_r.c: Warn about insecure tmpnam_r.
	* stdio-common/tmpnam.c: Warn about insecure tmpnam.
	* stdio-common/tempnam.c: Warn about insecure tempnam.
	* misc/mktemp.c: Warn about insecure mktemp.
2000-09-26 07:18:57 +00:00

39 lines
1.3 KiB
C

/* Copyright (C) 1991,1993,1996-1999,2000 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Library General Public License as
published by the Free Software Foundation; either version 2 of the
License, or (at your option) any later version.
The GNU C Library 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
Library General Public License for more details.
You should have received a copy of the GNU Library General Public
License along with the GNU C Library; see the file COPYING.LIB. If not,
write to the Free Software Foundation, Inc., 59 Temple Place - Suite 330,
Boston, MA 02111-1307, USA. */
#include <stdio.h>
/* Generate a unique filename in P_tmpdir. If S is NULL return NULL.
This makes this function thread safe. */
char *
tmpnam_r (char *s)
{
if (s == NULL)
return NULL;
if (__path_search (s, L_tmpnam, NULL, NULL, 0))
return NULL;
if (__gen_tempname (s, __GT_NOCREATE))
return NULL;
return s;
}
link_warning (tmpnam_r,
"the use of `tmpnam_r' is dangerous, better use `mkstemp'")