glibc/stdio-common/tmpnam.c

43 lines
1.2 KiB
C

/* Copyright (C) 1991, 1993 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., 675 Mass Ave,
Cambridge, MA 02139, USA. */
#include <ansidecl.h>
#include <stddef.h>
#include <stdio.h>
#include <string.h>
/* Generate a unique filename in P_tmpdir. */
char *
DEFUN(tmpnam, (s), register char *s)
{
register char *t = __stdio_gen_tempname((CONST char *) NULL,
(CONST char *) NULL, 0,
(size_t *) NULL, (FILE **) NULL);
if (t == NULL)
return NULL;
if (s != NULL)
(void) strcpy(s, t);
else
s = t;
return s;
}