-/* Copyright (C) 1991, 1993, 1996, 1997, 1998 Free Software Foundation, Inc.
+/* Copyright (C) 1991-2019 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.
+ modify it under the terms of the GNU Lesser General Public
+ License as published by the Free Software Foundation; either
+ version 2.1 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.
+ Lesser 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. */
+ You should have received a copy of the GNU Lesser General Public
+ License along with the GNU C Library; if not, see
+ <https://www.gnu.org/licenses/>. */
#include <stdio.h>
#include <string.h>
{
/* By using two buffers we manage to be thread safe in the case
where S != NULL. */
- char tmpbuf[L_tmpnam];
+ char tmpbufmem[L_tmpnam];
+ char *tmpbuf = s ?: tmpbufmem;
/* In the following call we use the buffer pointed to by S if
non-NULL although we don't know the size. But we limit the size
to L_tmpnam characters in any case. */
- if (__path_search (s ? : tmpbuf, L_tmpnam, NULL, NULL, 0))
+ if (__builtin_expect (__path_search (tmpbuf, L_tmpnam, NULL, NULL, 0),
+ 0))
return NULL;
- if (__gen_tempname (s ? : tmpbuf, 0, 0))
+ if (__glibc_unlikely (__gen_tempname (tmpbuf, 0, 0, __GT_NOCREATE)))
return NULL;
if (s == NULL)
return s;
}
+
+link_warning (tmpnam,
+ "the use of `tmpnam' is dangerous, better use `mkstemp'")