mirror of
https://sourceware.org/git/glibc.git
synced 2024-12-27 05:00:15 +00:00
44 lines
1.3 KiB
C
44 lines
1.3 KiB
C
/* dirfd -- Return the file descriptor used by a DIR stream. Hurd version.
|
|
Copyright (C) 1995-2013 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;
|
|
}
|