xref: /minix3/sys/lib/libsa/fstat.c (revision 58a2b0008e28f606a7f7f5faaeaba4faac57a1ea)
1*58a2b000SEvgeniy Ivanov /*	$NetBSD: fstat.c,v 1.7 2007/12/02 04:59:25 tsutsui Exp $	*/
2*58a2b000SEvgeniy Ivanov 
3*58a2b000SEvgeniy Ivanov /*-
4*58a2b000SEvgeniy Ivanov  * Copyright (c) 1993
5*58a2b000SEvgeniy Ivanov  *	The Regents of the University of California.  All rights reserved.
6*58a2b000SEvgeniy Ivanov  *
7*58a2b000SEvgeniy Ivanov  * Redistribution and use in source and binary forms, with or without
8*58a2b000SEvgeniy Ivanov  * modification, are permitted provided that the following conditions
9*58a2b000SEvgeniy Ivanov  * are met:
10*58a2b000SEvgeniy Ivanov  * 1. Redistributions of source code must retain the above copyright
11*58a2b000SEvgeniy Ivanov  *    notice, this list of conditions and the following disclaimer.
12*58a2b000SEvgeniy Ivanov  * 2. Redistributions in binary form must reproduce the above copyright
13*58a2b000SEvgeniy Ivanov  *    notice, this list of conditions and the following disclaimer in the
14*58a2b000SEvgeniy Ivanov  *    documentation and/or other materials provided with the distribution.
15*58a2b000SEvgeniy Ivanov  * 3. Neither the name of the University nor the names of its contributors
16*58a2b000SEvgeniy Ivanov  *    may be used to endorse or promote products derived from this software
17*58a2b000SEvgeniy Ivanov  *    without specific prior written permission.
18*58a2b000SEvgeniy Ivanov  *
19*58a2b000SEvgeniy Ivanov  * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
20*58a2b000SEvgeniy Ivanov  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
21*58a2b000SEvgeniy Ivanov  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
22*58a2b000SEvgeniy Ivanov  * ARE DISCLAIMED.  IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
23*58a2b000SEvgeniy Ivanov  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
24*58a2b000SEvgeniy Ivanov  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
25*58a2b000SEvgeniy Ivanov  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
26*58a2b000SEvgeniy Ivanov  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
27*58a2b000SEvgeniy Ivanov  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
28*58a2b000SEvgeniy Ivanov  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
29*58a2b000SEvgeniy Ivanov  * SUCH DAMAGE.
30*58a2b000SEvgeniy Ivanov  *
31*58a2b000SEvgeniy Ivanov  *	@(#)stat.c	8.1 (Berkeley) 6/11/93
32*58a2b000SEvgeniy Ivanov  */
33*58a2b000SEvgeniy Ivanov 
34*58a2b000SEvgeniy Ivanov #include "stand.h"
35*58a2b000SEvgeniy Ivanov 
36*58a2b000SEvgeniy Ivanov int
fstat(int fd,struct stat * sb)37*58a2b000SEvgeniy Ivanov fstat(int fd, struct stat *sb)
38*58a2b000SEvgeniy Ivanov {
39*58a2b000SEvgeniy Ivanov 	struct open_file *f = &files[fd];
40*58a2b000SEvgeniy Ivanov 
41*58a2b000SEvgeniy Ivanov #if !defined(LIBSA_NO_FD_CHECKING)
42*58a2b000SEvgeniy Ivanov 	if ((unsigned int)fd >= SOPEN_MAX || f->f_flags == 0) {
43*58a2b000SEvgeniy Ivanov 		errno = EBADF;
44*58a2b000SEvgeniy Ivanov 		return -1;
45*58a2b000SEvgeniy Ivanov 	}
46*58a2b000SEvgeniy Ivanov #endif
47*58a2b000SEvgeniy Ivanov 
48*58a2b000SEvgeniy Ivanov #if !defined(LIBSA_NO_RAW_ACCESS)
49*58a2b000SEvgeniy Ivanov 	/* operation not defined on raw devices */
50*58a2b000SEvgeniy Ivanov 	if (f->f_flags & F_RAW) {
51*58a2b000SEvgeniy Ivanov 		errno = EOPNOTSUPP;
52*58a2b000SEvgeniy Ivanov 		return -1;
53*58a2b000SEvgeniy Ivanov 	}
54*58a2b000SEvgeniy Ivanov #endif
55*58a2b000SEvgeniy Ivanov 
56*58a2b000SEvgeniy Ivanov 	errno = FS_STAT(f->f_ops)(f, sb);	/* XXX no point setting errno */
57*58a2b000SEvgeniy Ivanov 	return 0;
58*58a2b000SEvgeniy Ivanov }
59