/* 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 <errno.h> #include <stddef.h> #include <stdio.h> #include <stdlib.h> #include <string.h> /* 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 * DEFUN(tempnam, (dir, pfx), CONST char *dir AND CONST char *pfx) { size_t len; register char *s; register char *t = __stdio_gen_tempname(dir, pfx, 1, &len, (FILE **) NULL); if (t == NULL) return NULL; s = (char *) malloc(len); if (s == NULL) return NULL; (void) memcpy(s, t, len); return s; }