diff options
Diffstat (limited to 'REORG.TODO/sysdeps/mach/hurd/dirfd.c')
-rw-r--r-- | REORG.TODO/sysdeps/mach/hurd/dirfd.c | 43 |
1 files changed, 43 insertions, 0 deletions
diff --git a/REORG.TODO/sysdeps/mach/hurd/dirfd.c b/REORG.TODO/sysdeps/mach/hurd/dirfd.c new file mode 100644 index 0000000000..0ad290d515 --- /dev/null +++ b/REORG.TODO/sysdeps/mach/hurd/dirfd.c @@ -0,0 +1,43 @@ +/* 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; +} |