| 1 | /* dirfd.c -- return the file descriptor associated with an open DIR* |
| 2 | |
| 3 | Copyright (C) 2001, 2006, 2008-2014 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 Lesser 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 Lesser General Public License for more details. |
| 14 | |
| 15 | You should have received a copy of the GNU Lesser 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 | } |