xref: /netbsd-src/sys/arch/ia64/stand/common/readdir.c (revision a5847cc334d9a7029f6352b847e9e8d71a0f9e0c)
1 /*	$NetBSD: readdir.c,v 1.3 2009/07/20 04:59:03 kiyohara Exp $	*/
2 
3 /*-
4  * Copyright (c) 1999,2000 Jonathan Lemon <jlemon@freebsd.org>
5  * 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  *
16  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26  * SUCH DAMAGE.
27  */
28 
29 #include <sys/cdefs.h>
30 
31 
32 #include <lib/libsa/stand.h>
33 #include <lib/libsa/loadfile.h>
34 
35 #include <sys/param.h>
36 #include <sys/dirent.h>
37 
38 #include <bootstrap.h>
39 
40 struct dirent *
41 readdirfd(int fd)
42 {
43 	static struct dirent dir;		/* XXX not thread safe. eh ??? */
44 	struct open_file *f = &files[fd];
45 
46 	if ((unsigned)fd >= SOPEN_MAX) {
47 		errno = EBADF;
48 		return (NULL);
49 	}
50 	if (f->f_flags & F_RAW) {
51 		errno = EIO;
52 		return (NULL);
53 	}
54 
55 	/* XXXwill be f->f_ops->fo_readdir)(f, &dir); when/if we fix stand.h */
56 	errno = FS_READDIR(f, &dir);
57 
58 	if (errno)
59 		return (NULL);
60 	return (&dir);
61 }
62