xref: /freebsd/lib/libc/posix1e/acl_copy.c (revision 0b57cec536236d46e3dba9bd041533462f33dbb7)
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 __FBSDID("$FreeBSD$");
31 
32 #include <sys/types.h>
33 #include "namespace.h"
34 #include <sys/acl.h>
35 #include "un-namespace.h"
36 
37 #include <errno.h>
38 #include <string.h>
39 
40 #include "acl_support.h"
41 
42 /*
43  * acl_copy_entry() (23.4.4): copy the contents of ACL entry src_d to
44  * ACL entry dest_d
45  */
46 int
47 acl_copy_entry(acl_entry_t dest_d, acl_entry_t src_d)
48 {
49 
50 	if (src_d == NULL || dest_d == NULL || src_d == dest_d) {
51 		errno = EINVAL;
52 		return (-1);
53 	}
54 
55 	/*
56 	 * Can we brand the new entry the same as the source entry?
57 	 */
58 	if (!_entry_brand_may_be(dest_d, _entry_brand(src_d))) {
59 		errno = EINVAL;
60 		return (-1);
61 	}
62 
63 	_entry_brand_as(dest_d, _entry_brand(src_d));
64 
65 	dest_d->ae_tag = src_d->ae_tag;
66 	dest_d->ae_id = src_d->ae_id;
67 	dest_d->ae_perm = src_d->ae_perm;
68 	dest_d->ae_entry_type = src_d->ae_entry_type;
69 	dest_d->ae_flags = src_d->ae_flags;
70 
71 	return (0);
72 }
73 
74 ssize_t
75 acl_copy_ext(void *buf_p, acl_t acl, ssize_t size)
76 {
77 
78 	errno = ENOSYS;
79 	return (-1);
80 }
81 
82 acl_t
83 acl_copy_int(const void *buf_p)
84 {
85 
86 	errno = ENOSYS;
87 	return (NULL);
88 }
89