1*599546b3Sderaadt /* $OpenBSD: close.c,v 1.8 2003/08/11 06:23:09 deraadt Exp $ */
2df930be7Sderaadt /* $NetBSD: close.c,v 1.5 1995/09/06 19:53:29 pk Exp $ */
3df930be7Sderaadt
4df930be7Sderaadt /*-
5df930be7Sderaadt * Copyright (c) 1993
6df930be7Sderaadt * The Regents of the University of California. All rights reserved.
7df930be7Sderaadt *
8df930be7Sderaadt * This code is derived from software contributed to Berkeley by
9df930be7Sderaadt * The Mach Operating System project at Carnegie-Mellon University.
10df930be7Sderaadt *
11df930be7Sderaadt * Redistribution and use in source and binary forms, with or without
12df930be7Sderaadt * modification, are permitted provided that the following conditions
13df930be7Sderaadt * are met:
14df930be7Sderaadt * 1. Redistributions of source code must retain the above copyright
15df930be7Sderaadt * notice, this list of conditions and the following disclaimer.
16df930be7Sderaadt * 2. Redistributions in binary form must reproduce the above copyright
17df930be7Sderaadt * notice, this list of conditions and the following disclaimer in the
18df930be7Sderaadt * documentation and/or other materials provided with the distribution.
1929295d1cSmillert * 3. Neither the name of the University nor the names of its contributors
20df930be7Sderaadt * may be used to endorse or promote products derived from this software
21df930be7Sderaadt * without specific prior written permission.
22df930be7Sderaadt *
23df930be7Sderaadt * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
24df930be7Sderaadt * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25df930be7Sderaadt * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26df930be7Sderaadt * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
27df930be7Sderaadt * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28df930be7Sderaadt * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29df930be7Sderaadt * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30df930be7Sderaadt * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31df930be7Sderaadt * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32df930be7Sderaadt * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33df930be7Sderaadt * SUCH DAMAGE.
34df930be7Sderaadt *
35df930be7Sderaadt * @(#)close.c 8.1 (Berkeley) 6/11/93
36df930be7Sderaadt *
37df930be7Sderaadt *
38df930be7Sderaadt * Copyright (c) 1989, 1990, 1991 Carnegie Mellon University
39df930be7Sderaadt * All Rights Reserved.
40df930be7Sderaadt *
41df930be7Sderaadt * Author: Alessandro Forin
42df930be7Sderaadt *
43df930be7Sderaadt * Permission to use, copy, modify and distribute this software and its
44df930be7Sderaadt * documentation is hereby granted, provided that both the copyright
45df930be7Sderaadt * notice and this permission notice appear in all copies of the
46df930be7Sderaadt * software, derivative works or modified versions, and any portions
47df930be7Sderaadt * thereof, and that both notices appear in supporting documentation.
48df930be7Sderaadt *
49df930be7Sderaadt * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
50df930be7Sderaadt * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
51df930be7Sderaadt * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
52df930be7Sderaadt *
53df930be7Sderaadt * Carnegie Mellon requests users of this software to return to
54df930be7Sderaadt *
55df930be7Sderaadt * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
56df930be7Sderaadt * School of Computer Science
57df930be7Sderaadt * Carnegie Mellon University
58df930be7Sderaadt * Pittsburgh PA 15213-3890
59df930be7Sderaadt *
60df930be7Sderaadt * any improvements or extensions that they make and grant Carnegie the
61df930be7Sderaadt * rights to redistribute these changes.
62df930be7Sderaadt */
63df930be7Sderaadt
64df930be7Sderaadt #include "stand.h"
65176a80a6Smickey #include "saerrno.h"
66df930be7Sderaadt
67df930be7Sderaadt int
6835534e26Sdownsj #ifndef __INTERNAL_LIBSA_CREAD
close(int fd)69*599546b3Sderaadt close(int fd)
7035534e26Sdownsj #else
71*599546b3Sderaadt oclose(int fd)
7235534e26Sdownsj #endif
73df930be7Sderaadt {
74*599546b3Sderaadt struct open_file *f = &files[fd];
75df930be7Sderaadt int err1 = 0, err2 = 0;
76df930be7Sderaadt
77df930be7Sderaadt if ((unsigned)fd >= SOPEN_MAX || f->f_flags == 0) {
78df930be7Sderaadt errno = EBADF;
79df930be7Sderaadt return (-1);
80df930be7Sderaadt }
81df930be7Sderaadt if (!(f->f_flags & F_RAW) && f->f_ops)
82df930be7Sderaadt err1 = (f->f_ops->close)(f);
83df930be7Sderaadt if (!(f->f_flags & F_NODEV) && f->f_dev)
84df930be7Sderaadt err2 = (f->f_dev->dv_close)(f);
85df930be7Sderaadt f->f_flags = 0;
86df930be7Sderaadt if (err1) {
87df930be7Sderaadt errno = err1;
88df930be7Sderaadt return (-1);
89df930be7Sderaadt }
90df930be7Sderaadt if (err2) {
91df930be7Sderaadt errno = err2;
92df930be7Sderaadt return (-1);
93df930be7Sderaadt }
94df930be7Sderaadt return (0);
95df930be7Sderaadt }
96