?? dirfd.c
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/* dirfd -- Return the file descriptor used by a DIR stream. Hurd version. Copyright (C) 1995, 1996 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, write to the Free Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. */#include <dirent.h>#include <dirstream.h>#include <hurd/fd.h>#include <errno.h>intdirfd (DIR *dirp){ int fd; __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); return fd;}
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