acl_valid.c revision 74191 
1/*-
2 * Copyright (c) 1999, 2000, 20001 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 74191 2001-03-13 02:31:32Z 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 _posix1e_acl_sort to make this
44 * true.  POSIX.1e allows acl_valid() to reorder the ACL as it sees fit.
45 *
46 * This call is deprecated, as it doesn't ask whether the ACL is valid
47 * for a particular target.  However, this call is standardized, unlike
48 * the other two forms.
49 */
50int
51acl_valid(acl_t acl)
52{
53	int	error;
54
55	_posix1e_acl_sort(acl);
56	error = _posix1e_acl_check(acl);
57	if (error) {
58		errno = error;
59		return (-1);
60	} else {
61		return (0);
62	}
63}
64
65
66int
67acl_valid_file_np(const char *pathp, acl_type_t type, acl_t acl)
68{
69	int	error;
70
71	if (_posix1e_acl(acl, type)) {
72		error = _posix1e_acl_sort(acl);
73		if (error) {
74			errno = error;
75			return (-1);
76		}
77	}
78
79	return (__acl_aclcheck_file(pathp, type, acl));
80}
81
82
83int
84acl_valid_fd_np(int fd, acl_type_t type, acl_t acl)
85{
86	int	error;
87
88	if (_posix1e_acl(acl, type)) {
89		error = _posix1e_acl_sort(acl);
90		if (error) {
91			errno = error;
92			return (-1);
93		}
94	}
95
96	return (__acl_aclcheck_fd(fd, type, acl));
97}
98