glibc/stdio/tmpnam.c

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1991-01-30 10:25:34 +00:00
/* Copyright (C) 1991 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 General Public License as published by
the Free Software Foundation; either version 1, 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 General Public License for more details.
You should have received a copy of the GNU General Public License
along with the GNU C Library; see the file COPYING. If not, write to
the Free Software Foundation, 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);
if (t == NULL)
return NULL;
if (s != NULL)
(void) strcpy(s, t);
else
s = t;
return s;
}