1 /* $FreeBSD: src/lib/libstand/open.c,v 1.2.6.1 2000/09/10 01:32:06 ps Exp $ */
2 /* $NetBSD: open.c,v 1.16 1997/01/28 09:41:03 pk Exp $ */
6 * The Regents of the University of California. All rights reserved.
8 * This code is derived from software contributed to Berkeley by
9 * The Mach Operating System project at Carnegie-Mellon University.
11 * Redistribution and use in source and binary forms, with or without
12 * modification, are permitted provided that the following conditions
14 * 1. Redistributions of source code must retain the above copyright
15 * notice, this list of conditions and the following disclaimer.
16 * 2. Redistributions in binary form must reproduce the above copyright
17 * notice, this list of conditions and the following disclaimer in the
18 * documentation and/or other materials provided with the distribution.
19 * 3. All advertising materials mentioning features or use of this software
20 * must display the following acknowledgement:
21 * This product includes software developed by the University of
22 * California, Berkeley and its contributors.
23 * 4. Neither the name of the University nor the names of its contributors
24 * may be used to endorse or promote products derived from this software
25 * without specific prior written permission.
27 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND
28 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
29 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
30 * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE
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32 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
33 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
34 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
35 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
36 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
39 * @(#)open.c 8.1 (Berkeley) 6/11/93
42 * Copyright (c) 1989, 1990, 1991 Carnegie Mellon University
43 * All Rights Reserved.
45 * Author: Alessandro Forin
47 * Permission to use, copy, modify and distribute this software and its
48 * documentation is hereby granted, provided that both the copyright
49 * notice and this permission notice appear in all copies of the
50 * software, derivative works or modified versions, and any portions
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53 * CARNEGIE MELLON ALLOWS FREE USE OF THIS SOFTWARE IN ITS "AS IS"
54 * CONDITION. CARNEGIE MELLON DISCLAIMS ANY LIABILITY OF ANY KIND FOR
55 * ANY DAMAGES WHATSOEVER RESULTING FROM THE USE OF THIS SOFTWARE.
57 * Carnegie Mellon requests users of this software to return to
59 * Software Distribution Coordinator or Software.Distribution@CS.CMU.EDU
60 * School of Computer Science
61 * Carnegie Mellon University
62 * Pittsburgh PA 15213-3890
64 * any improvements or extensions that they make and grant Carnegie the
65 * rights to redistribute these changes.
70 struct open_file files[SOPEN_MAX];
77 for (fd = 0; fd < SOPEN_MAX; fd++)
78 if (files[fd].f_flags == 0)
84 o_rainit(struct open_file *f)
86 f->f_rabuf = malloc(SOPEN_RASIZE);
92 open(const char *fname, int mode)
95 int fd, i, error, besterror;
98 if ((fd = o_gethandle()) == -1) {
104 f->f_flags = mode + 1;
111 error = devopen(f, fname, &file);
113 (((f->f_flags & F_NODEV) == 0) && f->f_dev == NULL))
116 /* see if we opened a raw device; otherwise, 'file' is the file name. */
117 if (file == NULL || *file == '\0') {
122 /* pass file name to the different filesystem open routines */
124 for (i = 0; file_system[i] != NULL; i++) {
125 error = ((*file_system[i]).fo_open)(file, f);
127 f->f_ops = file_system[i];
136 if ((f->f_flags & F_NODEV) == 0)
137 f->f_dev->dv_close(f);