/* Copyright (C) 1993,1994,1995,1996,1997,1998,2001,2003,2005,2006	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 <errno.h>#include <limits.h>#include <stddef.h>#include <stdlib.h>#include <string.h>#include <dirent.h>#include <fcntl.h>#include <sys/types.h>#include <sys/stat.h>#include <unistd.h>#include <stdio.h>#include <hurd.h>#include <hurd/fd.h>#include "dirstream.h"/* Open a directory stream on a file descriptor in Hurd internal form.   We do no checking here on the descriptor.  */DIR *_hurd_fd_opendir (struct hurd_fd *d){  DIR *dirp;  if (d == NULL)    {      errno = EBADF;      return NULL;    }  dirp = (DIR *) malloc (sizeof (DIR));  if (dirp == NULL)    return NULL;  /* Set the descriptor to close on exec. */  __spin_lock (&d->port.lock);  d->flags |= FD_CLOEXEC;  __spin_unlock (&d->port.lock);  dirp->__fd = d;  dirp->__data = dirp->__ptr = NULL;  dirp->__entry_data = dirp->__entry_ptr = 0;  dirp->__allocation = 0;  dirp->__size = 0;  __libc_lock_init (dirp->__lock);  return dirp;}/* Open a directory stream on NAME.  */DIR *__opendir (const char *name){  if (name[0] == '\0')    {      /* POSIX.1-1990 says an empty name gets ENOENT;	 but `open' might like it fine.  */      __set_errno (ENOENT);      return NULL;    }  int fd = __open (name, O_RDONLY | O_NONBLOCK | O_DIRECTORY);  if (fd < 0)    return NULL;  /* Extract the pointer to the descriptor structure.  */  DIR *dirp = _hurd_fd_opendir (_hurd_fd_get (fd));  if (dirp == NULL)    __close (fd);  return dirp;}weak_alias (__opendir, opendir)