acl_valid.c revision 56055 
1/*-
2 * Copyright (c) 1999 Robert N. M. Watson
3 * All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 * 1. Redistributions of source code must retain the above copyright
9 *    notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 *    notice, this list of conditions and the following disclaimer in the
12 *    documentation and/or other materials provided with the distribution.
13 *
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
24 * SUCH DAMAGE.
25 *
26 *	$FreeBSD: head/lib/libc/posix1e/acl_valid.c 56055 2000-01-15 19:44:27Z rwatson $
27 */
28/*
29 * acl_valid -- POSIX.1e ACL check routine
30 */
31
32#include <sys/types.h>
33#include <sys/acl.h>
34#include <sys/errno.h>
35
36#include "acl_support.h"
37
38/*
39 * acl_valid: accepts an ACL, returns 0 on valid ACL, -1 for invalid,
40 * and errno set to EINVAL.
41 *
42 * Implemented by calling the acl_check routine in acl_support, which
43 * requires ordering.  We call acl_support's acl_sort to make this
44 * true.
45 *
46 * POSIX.1e allows acl_valid() to reorder the ACL as it sees fit.
47 *
48 * This call is deprecated, as it doesn't ask whether the ACL is valid
49 * for a particular target.
50 */
51int
52acl_valid(acl_t acl)
53{
54	int	error;
55
56	acl_sort(acl);
57	error = acl_check(acl);
58	if (error) {
59		errno = error;
60		return (-1);
61	} else {
62		return (0);
63	}
64}
65
66
67int
68acl_valid_file(const char *pathp, acl_type_t type, acl_t acl)
69{
70	int	error;
71
72	if (acl_posix1e(acl)) {
73		error = acl_sort(acl);
74		if (error) {
75			errno = error;
76			return (-1);
77		}
78	}
79
80	return (acl_syscall_aclcheck_file(pathp, type, acl));
81}
82
83
84int
85acl_valid_fd(int fd, acl_type_t type, acl_t acl)
86{
87	int	error;
88
89	if (acl_posix1e(acl)) {
90		error = acl_sort(acl);
91		if (error) {
92			errno = error;
93			return (-1);
94		}
95	}
96
97	return (acl_syscall_aclcheck_fd(fd, type, acl));
98}
99