FreeBSD/Linux Kernel Cross Reference
sys/lib/libsa/fstat.c
1 /* $NetBSD: fstat.c,v 1.4 2003/08/07 16:32:27 agc 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 }
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