xref: /illumos-gate/usr/src/boot/libsa/readdir.c (revision 22028508)
1*22028508SToomas Soome /*-
2*22028508SToomas Soome  * Copyright (c) 1999,2000 Jonathan Lemon <jlemon@freebsd.org>
3*22028508SToomas Soome  * All rights reserved.
4*22028508SToomas Soome  *
5*22028508SToomas Soome  * Redistribution and use in source and binary forms, with or without
6*22028508SToomas Soome  * modification, are permitted provided that the following conditions
7*22028508SToomas Soome  * are met:
8*22028508SToomas Soome  * 1. Redistributions of source code must retain the above copyright
9*22028508SToomas Soome  *    notice, this list of conditions and the following disclaimer.
10*22028508SToomas Soome  * 2. Redistributions in binary form must reproduce the above copyright
11*22028508SToomas Soome  *    notice, this list of conditions and the following disclaimer in the
12*22028508SToomas Soome  *    documentation and/or other materials provided with the distribution.
13*22028508SToomas Soome  *
14*22028508SToomas Soome  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15*22028508SToomas Soome  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16*22028508SToomas Soome  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17*22028508SToomas Soome  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18*22028508SToomas Soome  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19*22028508SToomas Soome  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20*22028508SToomas Soome  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21*22028508SToomas Soome  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22*22028508SToomas Soome  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23*22028508SToomas Soome  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24*22028508SToomas Soome  * SUCH DAMAGE.
25*22028508SToomas Soome  */
26*22028508SToomas Soome 
27*22028508SToomas Soome #include <sys/cdefs.h>
28*22028508SToomas Soome 
29*22028508SToomas Soome #include <sys/param.h>
30*22028508SToomas Soome #include "stand.h"
31*22028508SToomas Soome 
32*22028508SToomas Soome struct dirent *
readdirfd(int fd)33*22028508SToomas Soome readdirfd(int fd)
34*22028508SToomas Soome {
35*22028508SToomas Soome 	static struct dirent dir;		/* XXX not thread safe */
36*22028508SToomas Soome 	struct open_file *f;
37*22028508SToomas Soome 
38*22028508SToomas Soome 	f = fd2open_file(fd);
39*22028508SToomas Soome 	if (f == NULL || !(f->f_flags & F_READ)) {
40*22028508SToomas Soome 		errno = EBADF;
41*22028508SToomas Soome 		return (NULL);
42*22028508SToomas Soome 	}
43*22028508SToomas Soome 	if (f->f_flags & F_RAW) {
44*22028508SToomas Soome 		errno = EIO;
45*22028508SToomas Soome 		return (NULL);
46*22028508SToomas Soome 	}
47*22028508SToomas Soome 	errno = (f->f_ops->fo_readdir)(f, &dir);
48*22028508SToomas Soome 	if (errno)
49*22028508SToomas Soome 		return (NULL);
50*22028508SToomas Soome 	return (&dir);
51*22028508SToomas Soome }
52