| 1 | /* Create a temporary file or directory. |
| 2 | |
| 3 | Copyright (C) 2006, 2009-2014 Free Software Foundation, Inc. |
| 4 | |
| 5 | This program is free software: you can redistribute it and/or modify |
| 6 | it under the terms of the GNU General Public License as published by |
| 7 | the Free Software Foundation; either version 3 of the License, or |
| 8 | (at your option) any later version. |
| 9 | |
| 10 | This program is distributed in the hope that it will be useful, |
| 11 | but WITHOUT ANY WARRANTY; without even the implied warranty of |
| 12 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
| 13 | GNU General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU General Public License |
| 16 | along with this program. If not, see <http://www.gnu.org/licenses/>. */ |
| 17 | |
| 18 | /* header written by Eric Blake */ |
| 19 | |
| 20 | #ifndef GL_TEMPNAME_H |
| 21 | # define GL_TEMPNAME_H |
| 22 | |
| 23 | # include <stdio.h> |
| 24 | |
| 25 | # ifdef __GT_FILE |
| 26 | # define GT_FILE __GT_FILE |
| 27 | # define GT_DIR __GT_DIR |
| 28 | # define GT_NOCREATE __GT_NOCREATE |
| 29 | # else |
| 30 | # define GT_FILE 0 |
| 31 | # define GT_DIR 1 |
| 32 | # define GT_NOCREATE 2 |
| 33 | # endif |
| 34 | |
| 35 | /* Generate a temporary file name based on TMPL. TMPL must match the |
| 36 | rules for mk[s]temp (i.e. end in "XXXXXX", possibly with a suffix). |
| 37 | The name constructed does not exist at the time of the call to |
| 38 | gen_tempname. TMPL is overwritten with the result. |
| 39 | |
| 40 | KIND may be one of: |
| 41 | GT_NOCREATE: simply verify that the name does not exist |
| 42 | at the time of the call. |
| 43 | GT_FILE: create a large file using open(O_CREAT|O_EXCL) |
| 44 | and return a read-write fd. The file is mode 0600. |
| 45 | GT_DIR: create a directory, which will be mode 0700. |
| 46 | |
| 47 | We use a clever algorithm to get hard-to-predict names. */ |
| 48 | extern int gen_tempname (char *tmpl, int suffixlen, int flags, int kind); |
| 49 | |
| 50 | #endif /* GL_TEMPNAME_H */ |