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18848e28 GF |
1 | /* dirfd.c -- return the file descriptor associated with an open DIR* |
2 | ||
4a626d0a | 3 | Copyright (C) 2001, 2006, 2008-2015 Free Software Foundation, Inc. |
18848e28 GF |
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 | /* Written by Jim Meyering. */ | |
19 | ||
20 | #include <config.h> | |
21 | ||
22 | #include <dirent.h> | |
23 | #include <errno.h> | |
24 | ||
25 | int | |
26 | dirfd (DIR *dir_p) | |
27 | { | |
28 | int fd = DIR_TO_FD (dir_p); | |
29 | if (fd == -1) | |
30 | errno = ENOTSUP; | |
31 | return fd; | |
32 | } |