xref: /netbsd-src/sys/lib/libsa/stat.c (revision 6ea46cb5e46c49111a6ecf3bcbe3c7e2730fe9f6)
1 /*-
2  * Copyright (c) 1993
3  *	The Regents of the University of California.  All rights reserved.
4  *
5  * Redistribution and use in source and binary forms, with or without
6  * modification, are permitted provided that the following conditions
7  * are met:
8  * 1. Redistributions of source code must retain the above copyright
9  *    notice, this list of conditions and the following disclaimer.
10  * 2. Redistributions in binary form must reproduce the above copyright
11  *    notice, this list of conditions and the following disclaimer in the
12  *    documentation and/or other materials provided with the distribution.
13  * 3. All advertising materials mentioning features or use of this software
14  *    must display the following acknowledgement:
15  *	This product includes software developed by the University of
16  *	California, Berkeley and its contributors.
17  * 4. Neither the name of the University nor the names of its contributors
18  *    may be used to endorse or promote products derived from this software
19  *    without specific prior written permission.
20  *
21  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
22  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
23  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
24  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
25  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
26  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
27  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
28  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
29  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
30  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
31  * SUCH DAMAGE.
32  *
33  *	from: @(#)stat.c	8.1 (Berkeley) 6/11/93
34  *	     $Id: stat.c,v 1.2 1994/08/22 21:56:14 brezak Exp $
35  */
36 
37 #include "stand.h"
38 
39 int
40 fstat(fd, sb)
41 	int fd;
42 	struct stat *sb;
43 {
44 	register struct open_file *f = &files[fd];
45 
46 	if ((unsigned)fd >= SOPEN_MAX || f->f_flags == 0) {
47 		errno = EBADF;
48 		return (-1);
49 	}
50 
51 	/* operation not defined on raw devices */
52 	if (f->f_flags & F_RAW) {
53 		errno = EOPNOTSUPP;
54 		return (-1);
55 	}
56 
57 	errno = (f->f_ops->stat)(f, sb);
58 	return (0);
59 }
60 
61 int
62 stat(str, sb)
63 	const char *str;
64 	struct stat *sb;
65 {
66 	int fd, rv;
67 
68 	fd = open(str, 0);
69 	if (fd < 0)
70 		return (-1);
71 	rv = fstat(fd, sb);
72 	(void)close(fd);
73 	return (rv);
74 }
75