| /* Copyright (C) 1991-2014 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 Lesser General Public |
| License as published by the Free Software Foundation; either |
| version 2.1 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 |
| Lesser General Public License for more details. |
| |
| You should have received a copy of the GNU Lesser General Public |
| License along with the GNU C Library; if not, see |
| <http://www.gnu.org/licenses/>. */ |
| |
| #include <stdio.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 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, 0, __GT_NOCREATE)) |
| return NULL; |
| |
| return __strdup (buf); |
| } |
| |
| #if 0 /* Google-local: b/6115789 */ |
| link_warning (tempnam, |
| "the use of `tempnam' is dangerous, better use `mkstemp'") |
| #endif |
