1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause-FreeBSD
3 *
4 * Copyright (c) 2001-2002 Chris D. Faulhaber
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 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_copy.c 326193 2017-11-25 17:12:48Z pfg $");
32 #else
33 __RCSID("$NetBSD: acl_copy.c,v 1.2 2024/01/20 14:52:48 christos Exp $");
34 #endif
35
36 #include "namespace.h"
37 #include <sys/types.h>
38 #include <sys/acl.h>
39
40 #include <errno.h>
41 #include <string.h>
42
43 #include "acl_support.h"
44
45 /*
46 * acl_copy_entry() (23.4.4): copy the contents of ACL entry src_d to
47 * ACL entry dest_d
48 */
49 int
acl_copy_entry(acl_entry_t dest_d,acl_entry_t src_d)50 acl_copy_entry(acl_entry_t dest_d, acl_entry_t src_d)
51 {
52
53 if (src_d == NULL || dest_d == NULL || src_d == dest_d) {
54 errno = EINVAL;
55 return (-1);
56 }
57
58 /*
59 * Can we brand the new entry the same as the source entry?
60 */
61 if (!_entry_brand_may_be(dest_d, _entry_brand(src_d))) {
62 errno = EINVAL;
63 return (-1);
64 }
65
66 _entry_brand_as(dest_d, _entry_brand(src_d));
67
68 dest_d->ae_tag = src_d->ae_tag;
69 dest_d->ae_id = src_d->ae_id;
70 dest_d->ae_perm = src_d->ae_perm;
71 dest_d->ae_entry_type = src_d->ae_entry_type;
72 dest_d->ae_flags = src_d->ae_flags;
73
74 return (0);
75 }
76
77 ssize_t
78 /*ARGSUSED*/
acl_copy_ext(void * buf_p,acl_t acl,ssize_t size)79 acl_copy_ext(void *buf_p, acl_t acl, ssize_t size)
80 {
81
82 errno = ENOSYS;
83 return (-1);
84 }
85
86 acl_t
87 /*ARGSUSED*/
acl_copy_int(const void * buf_p)88 acl_copy_int(const void *buf_p)
89 {
90
91 errno = ENOSYS;
92 return (NULL);
93 }
94