From 595edd2276244fbbec6f08c99085a949c72a4ebe Mon Sep 17 00:00:00 2001 From: Eric Andersen Date: Thu, 17 May 2001 05:25:30 +0000 Subject: Add in tempnam() --- libc/stdio/tempnam.c | 48 ++++++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 48 insertions(+) create mode 100644 libc/stdio/tempnam.c (limited to 'libc/stdio/tempnam.c') diff --git a/libc/stdio/tempnam.c b/libc/stdio/tempnam.c new file mode 100644 index 000000000..f1ea626b6 --- /dev/null +++ b/libc/stdio/tempnam.c @@ -0,0 +1,48 @@ +/* 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 +#include + +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'") -- cgit v1.2.3