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stat.c revision 1.3 
      1 /*	$NetBSD: stat.c,v 1.3 1994/10/26 05:45:07 cgd 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. All advertising materials mentioning features or use of this software
     16  *    must display the following acknowledgement:
     17  *	This product includes software developed by the University of
     18  *	California, Berkeley and its contributors.
     19  * 4. Neither the name of the University nor the names of its contributors
     20  *    may be used to endorse or promote products derived from this software
     21  *    without specific prior written permission.
     22  *
     23  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
     24  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
     25  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
     26  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
     27  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
     28  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
     29  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
     30  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
     31  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
     32  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
     33  * SUCH DAMAGE.
     34  *
     35  *	@(#)stat.c	8.1 (Berkeley) 6/11/93
     36  */
     37 
     38 #include "stand.h"
     39 
     40 int
     41 fstat(fd, sb)
     42 	int fd;
     43 	struct stat *sb;
     44 {
     45 	register struct open_file *f = &files[fd];
     46 
     47 	if ((unsigned)fd >= SOPEN_MAX || f->f_flags == 0) {
     48 		errno = EBADF;
     49 		return (-1);
     50 	}
     51 
     52 	/* operation not defined on raw devices */
     53 	if (f->f_flags & F_RAW) {
     54 		errno = EOPNOTSUPP;
     55 		return (-1);
     56 	}
     57 
     58 	errno = (f->f_ops->stat)(f, sb);
     59 	return (0);
     60 }
     61 
     62 int
     63 stat(str, sb)
     64 	const char *str;
     65 	struct stat *sb;
     66 {
     67 	int fd, rv;
     68 
     69 	fd = open(str, 0);
     70 	if (fd < 0)
     71 		return (-1);
     72 	rv = fstat(fd, sb);
     73 	(void)close(fd);
     74 	return (rv);
     75 }
     76