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63be256a | 1 | /* Open a directory stream from a file descriptor. Hurd version. |
2b778ceb | 2 | Copyright (C) 2005-2021 Free Software Foundation, Inc. |
63be256a RM |
3 | This file is part of the GNU C Library. |
4 | ||
5 | The GNU C Library is free software; you can redistribute it and/or | |
6 | modify it under the terms of the GNU Lesser General Public | |
7 | License as published by the Free Software Foundation; either | |
8 | version 2.1 of the License, or (at your option) any later version. | |
9 | ||
10 | The GNU C Library 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 GNU | |
13 | Lesser General Public License for more details. | |
14 | ||
15 | You should have received a copy of the GNU Lesser General Public | |
59ba27a6 | 16 | License along with the GNU C Library; if not, see |
5a82c748 | 17 | <https://www.gnu.org/licenses/>. */ |
63be256a RM |
18 | |
19 | #include <dirent.h> | |
20 | #include <errno.h> | |
21 | #include <hurd.h> | |
22 | #include <hurd/fd.h> | |
4b2faf49 | 23 | #include <fcntl.h> |
63be256a RM |
24 | |
25 | DIR *_hurd_fd_opendir (struct hurd_fd *d); /* opendir.c */ | |
26 | ||
27 | /* Open a directory stream on FD. */ | |
28 | DIR * | |
d369ad76 | 29 | __fdopendir (int fd) |
63be256a | 30 | { |
4b2faf49 | 31 | struct hurd_fd *d = _hurd_fd_get (fd); |
63be256a RM |
32 | |
33 | if (d == NULL) | |
34 | { | |
35 | errno = EBADF; | |
36 | return NULL; | |
37 | } | |
38 | ||
39 | /* Ensure that it's a directory. */ | |
40 | error_t err = HURD_FD_PORT_USE | |
41 | (d, ({ | |
94884ff5 | 42 | file_t dir = __file_name_lookup_under (port, "./", |
0b9b4d88 | 43 | O_DIRECTORY | O_NOTRANS, 0);; |
63be256a RM |
44 | if (dir != MACH_PORT_NULL) |
45 | __mach_port_deallocate (__mach_task_self (), dir); | |
46 | dir != MACH_PORT_NULL ? 0 : errno; | |
47 | })); | |
48 | ||
49 | if (err) | |
50 | { | |
51 | errno = err; | |
52 | return NULL; | |
53 | } | |
54 | ||
55 | return _hurd_fd_opendir (d); | |
56 | } | |
d369ad76 | 57 | weak_alias (__fdopendir, fdopendir) |