| xf.li | bdd93d5 | 2023-05-12 07:10:14 -0700 | [diff] [blame] | 1 | /* Copyright (C) 1991-2016 Free Software Foundation, Inc. |
| 2 | This file is part of the GNU C Library. |
| 3 | |
| 4 | The GNU C Library is free software; you can redistribute it and/or |
| 5 | modify it under the terms of the GNU Lesser General Public |
| 6 | License as published by the Free Software Foundation; either |
| 7 | version 2.1 of the License, or (at your option) any later version. |
| 8 | |
| 9 | The GNU C Library is distributed in the hope that it will be useful, |
| 10 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 11 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU |
| 12 | Lesser General Public License for more details. |
| 13 | |
| 14 | You should have received a copy of the GNU Lesser General Public |
| 15 | License along with the GNU C Library; if not, see |
| 16 | <http://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | #include <stdio.h> |
| 19 | #include <string.h> |
| 20 | |
| 21 | /* Generate a unique temporary filename using up to five characters of |
| 22 | PFX if it is not NULL. The directory to put this file in is |
| 23 | searched for as follows: First the environment variable "TMPDIR" is |
| 24 | checked. If it contains the name of a directory, that directory is |
| 25 | used. If not and if DIR is not NULL, that value is checked. If |
| 26 | that fails, P_tmpdir is tried and finally "/tmp". The storage for |
| 27 | the filename is allocated by `malloc'. */ |
| 28 | char * |
| 29 | tempnam (const char *dir, const char *pfx) |
| 30 | { |
| 31 | char buf[FILENAME_MAX]; |
| 32 | |
| 33 | if (__path_search (buf, FILENAME_MAX, dir, pfx, 1)) |
| 34 | return NULL; |
| 35 | |
| 36 | if (__gen_tempname (buf, 0, 0, __GT_NOCREATE)) |
| 37 | return NULL; |
| 38 | |
| 39 | return __strdup (buf); |
| 40 | } |
| 41 | |
| 42 | link_warning (tempnam, |
| 43 | "the use of `tempnam' is dangerous, better use `mkstemp'") |