xref: /netbsd-src/sys/lib/libsa/stat.c (revision 1f2744e6e4915c9da2a3f980279398c4cf7d5e6d)
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