/* 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> #include <string.h> extern int __path_search (char *tmpl, size_t tmpl_len, const char *dir, const char *pfx, int try_tmpdir); extern int __gen_tempname (char *tmpl, int openit); /* Generate a unique temporary filename using up to five characters of PFX if it is not NULL. The directory to put this file in is searched for as follows: First the environment variable "TMPDIR" is checked. If it contains the name of a writable directory, that directory is used. If not and if DIR is not NULL, that value is checked. If that fails, P_tmpdir is tried and finally "/tmp". The storage for the filename is allocated by `malloc'. */ char * tempnam (const char *dir, const char *pfx) { char buf[FILENAME_MAX]; if (__path_search (buf, FILENAME_MAX, dir, pfx, 1)) return NULL; if (__gen_tempname (buf, 0)) return NULL; return strdup (buf); } link_warning (tempnam, "`tempnam' is dangerous, use `mkstemp'")