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fstat.c revision 1.3.28.2 
      1 /*	$NetBSD: fstat.c,v 1.3.28.2 2004/09/18 14:54:02 skrll Exp $	*/
      2 
      3 /*-
      4  * Copyright (c) 1993
      5  *	The Regents of the University of California.  All rights reserved.
      6  *
      7  * Redistribution and use in source and binary forms, with or without
      8  * modification, are permitted provided that the following conditions
      9  * are met:
     10  * 1. Redistributions of source code must retain the above copyright
     11  *    notice, this list of conditions and the following disclaimer.
     12  * 2. Redistributions in binary form must reproduce the above copyright
     13  *    notice, this list of conditions and the following disclaimer in the
     14  *    documentation and/or other materials provided with the distribution.
     15  * 3. Neither the name of the University nor the names of its contributors
     16  *    may be used to endorse or promote products derived from this software
     17  *    without specific prior written permission.
     18  *
     19  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     20  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     21  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     22  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     23  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     24  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     25  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     26  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     27  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     28  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     29  * SUCH DAMAGE.
     30  *
     31  *	@(#)stat.c	8.1 (Berkeley) 6/11/93
     32  */
     33 
     34 #include "stand.h"
     35 
     36 int
     37 fstat(fd, sb)
     38 	int fd;
     39 	struct stat *sb;
     40 {
     41 	struct open_file *f = &files[fd];
     42 
     43 #if !defined(LIBSA_NO_FD_CHECKING)
     44 	if ((unsigned)fd >= SOPEN_MAX || f->f_flags == 0) {
     45 		errno = EBADF;
     46 		return (-1);
     47 	}
     48 #endif
     49 
     50 #if !defined(LIBSA_NO_RAW_ACCESS)
     51 	/* operation not defined on raw devices */
     52 	if (f->f_flags & F_RAW) {
     53 		errno = EOPNOTSUPP;
     54 		return (-1);
     55 	}
     56 #endif
     57 
     58 	errno = FS_STAT(f->f_ops)(f, sb);	/* XXX no point setting errno */
     59 	return (0);
     60 }
     61