text: /*	$NetBSD: readdir.c,v 1.4 2012/12/27 20:21:51 martin Exp $	*/
  
  /*-
   * Copyright (c) 1999,2000 Jonathan Lemon <jlemon@freebsd.org>
   * All rights reserved.
   *
   * Redistribution and use in source and binary forms, with or without
   * modification, are permitted provided that the following conditions
   * are met:
   * 1. Redistributions of source code must retain the above copyright
   *    notice, this list of conditions and the following disclaimer.
   * 2. Redistributions in binary form must reproduce the above copyright
   *    notice, this list of conditions and the following disclaimer in the
   *    documentation and/or other materials provided with the distribution.
   *
   * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
   * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
   * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
   * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
   * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
   * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
   * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
   * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
   * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
   * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
   * SUCH DAMAGE.
   */
  
  #include <sys/cdefs.h>
  
  #include <sys/param.h>
  #include <sys/dirent.h>
  
  #include <lib/libsa/stand.h>
  #include <lib/libsa/loadfile.h>
  
  #include <bootstrap.h>
  
  struct dirent *
  readdirfd(int fd)
  {
  	static struct dirent dir;		/* XXX not thread safe. eh ??? */
  	struct open_file *f = &files[fd];
  
  	if ((unsigned)fd >= SOPEN_MAX) {
  		errno = EBADF;
  		return (NULL);
  	}
  	if (f->f_flags & F_RAW) {
  		errno = EIO;
  		return (NULL);
  	}
  
  	errno = (f->f_ops->readdir)(f, &dir);
  
  	if (errno)
  		return (NULL);
  	return (&dir);
  }
  