1/*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2008, 2009 Edward Tomasz Napiera��a <trasz@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#if 0
31__FBSDID("$FreeBSD: head/lib/libc/posix1e/acl_flag.c 326193 2017-11-25 17:12:48Z pfg $");
32#else
33__RCSID("$NetBSD: acl_flag.c,v 1.1 2020/05/16 18:31:47 christos Exp $");
34#endif
35
36#include <stdio.h>
37#include <errno.h>
38#include <sys/acl.h>
39
40#include "acl_support.h"
41
42static int
43_flag_is_invalid(acl_flag_t flag)
44{
45
46	if ((flag & ACL_FLAGS_BITS) == flag)
47		return (0);
48
49	errno = EINVAL;
50
51	return (1);
52}
53
54int
55acl_add_flag_np(acl_flagset_t flagset_d, acl_flag_t flag)
56{
57
58	if (flagset_d == NULL) {
59		errno = EINVAL;
60		return (-1);
61	}
62
63	if (_flag_is_invalid(flag))
64		return (-1);
65
66	*flagset_d |= flag;
67
68	return (0);
69}
70
71int
72acl_clear_flags_np(acl_flagset_t flagset_d)
73{
74
75	if (flagset_d == NULL) {
76		errno = EINVAL;
77		return (-1);
78	}
79
80	*flagset_d = 0;
81
82	return (0);
83}
84
85int
86acl_delete_flag_np(acl_flagset_t flagset_d, acl_flag_t flag)
87{
88
89	if (flagset_d == NULL) {
90		errno = EINVAL;
91		return (-1);
92	}
93
94	if (_flag_is_invalid(flag))
95		return (-1);
96
97	*flagset_d &= ~flag;
98
99	return (0);
100}
101
102int
103acl_get_flag_np(acl_flagset_t flagset_d, acl_flag_t flag)
104{
105
106	if (flagset_d == NULL) {
107		errno = EINVAL;
108		return (-1);
109	}
110
111	if (_flag_is_invalid(flag))
112		return (-1);
113
114	if (*flagset_d & flag)
115		return (1);
116
117	return (0);
118}
119
120int
121acl_get_flagset_np(acl_entry_t entry_d, acl_flagset_t *flagset_p)
122{
123
124	if (entry_d == NULL || flagset_p == NULL) {
125		errno = EINVAL;
126		return (-1);
127	}
128
129	if (!_entry_brand_may_be(entry_d, ACL_BRAND_NFS4)) {
130		errno = EINVAL;
131		return (-1);
132	}
133
134	*flagset_p = &entry_d->ae_flags;
135
136	return (0);
137}
138
139int
140acl_set_flagset_np(acl_entry_t entry_d, acl_flagset_t flagset_d)
141{
142
143	if (entry_d == NULL) {
144		errno = EINVAL;
145		return (-1);
146	}
147
148	if (!_entry_brand_may_be(entry_d, ACL_BRAND_NFS4)) {
149		errno = EINVAL;
150		return (-1);
151	}
152
153	_entry_brand_as(entry_d, ACL_BRAND_NFS4);
154
155	if (_flag_is_invalid(*flagset_d))
156		return (-1);
157
158	entry_d->ae_flags = *flagset_d;
159
160	return (0);
161}
162