xref: /freebsd/lib/libc/posix1e/acl_copy.c (revision 2008043f386721d58158e37e0d7e50df8095942d)
1 /*-
2  * SPDX-License-Identifier: BSD-2-Clause
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/types.h>
30 #include "namespace.h"
31 #include <sys/acl.h>
32 #include "un-namespace.h"
33 
34 #include <errno.h>
35 #include <string.h>
36 
37 #include "acl_support.h"
38 
39 /*
40  * acl_copy_entry() (23.4.4): copy the contents of ACL entry src_d to
41  * ACL entry dest_d
42  */
43 int
44 acl_copy_entry(acl_entry_t dest_d, acl_entry_t src_d)
45 {
46 
47 	if (src_d == NULL || dest_d == NULL || src_d == dest_d) {
48 		errno = EINVAL;
49 		return (-1);
50 	}
51 
52 	/*
53 	 * Can we brand the new entry the same as the source entry?
54 	 */
55 	if (!_entry_brand_may_be(dest_d, _entry_brand(src_d))) {
56 		errno = EINVAL;
57 		return (-1);
58 	}
59 
60 	_entry_brand_as(dest_d, _entry_brand(src_d));
61 
62 	dest_d->ae_tag = src_d->ae_tag;
63 	dest_d->ae_id = src_d->ae_id;
64 	dest_d->ae_perm = src_d->ae_perm;
65 	dest_d->ae_entry_type = src_d->ae_entry_type;
66 	dest_d->ae_flags = src_d->ae_flags;
67 
68 	return (0);
69 }
70 
71 ssize_t
72 acl_copy_ext(void *buf_p, acl_t acl, ssize_t size)
73 {
74 
75 	errno = ENOSYS;
76 	return (-1);
77 }
78 
79 acl_t
80 acl_copy_int(const void *buf_p)
81 {
82 
83 	errno = ENOSYS;
84 	return (NULL);
85 }
86