blob: 0ad290d5156f94161c1a40f051195bbf09c7ef07 (
plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
|
/* dirfd -- Return the file descriptor used by a DIR stream. Hurd version.
Copyright (C) 1995-2017 Free Software Foundation, Inc.
This file is part of the GNU C Library.
The GNU C Library is free software; you can redistribute it and/or
modify it under the terms of the GNU Lesser General Public
License as published by the Free Software Foundation; either
version 2.1 of the License, or (at your option) any later version.
The GNU C Library is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
Lesser General Public License for more details.
You should have received a copy of the GNU Lesser General Public
License along with the GNU C Library; if not, see
<http://www.gnu.org/licenses/>. */
#include <dirent.h>
#include <dirstream.h>
#include <hurd/fd.h>
#include <errno.h>
int
dirfd (DIR *dirp)
{
int fd;
HURD_CRITICAL_BEGIN;
__mutex_lock (&_hurd_dtable_lock);
for (fd = 0; fd < _hurd_dtablesize; ++fd)
if (_hurd_dtable[fd] == dirp->__fd)
break;
if (fd == _hurd_dtablesize)
{
errno = EINVAL;
fd = -1;
}
__mutex_unlock (&_hurd_dtable_lock);
HURD_CRITICAL_END;
return fd;
}
|
