xref: /freebsd/lib/libc/posix1e/acl_copy.c (revision 2f02600abfddfc4e9f20dd384a2e729b451e16bd)
1 /*
2  * Copyright (c) 2001-2002 Chris D. Faulhaber
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 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 
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
29 
30 #include <sys/types.h>
31 #include "namespace.h"
32 #include <sys/acl.h>
33 #include "un-namespace.h"
34 
35 #include <errno.h>
36 #include <string.h>
37 
38 #include "acl_support.h"
39 
40 /*
41  * acl_copy_entry() (23.4.4): copy the contents of ACL entry src_d to
42  * ACL entry dest_d
43  */
44 int
45 acl_copy_entry(acl_entry_t dest_d, acl_entry_t src_d)
46 {
47 
48 	if (src_d == NULL || dest_d == NULL || src_d == dest_d) {
49 		errno = EINVAL;
50 		return (-1);
51 	}
52 
53 	/*
54 	 * Can we brand the new entry the same as the source entry?
55 	 */
56 	if (!_entry_brand_may_be(dest_d, _entry_brand(src_d))) {
57 		errno = EINVAL;
58 		return (-1);
59 	}
60 
61 	_entry_brand_as(dest_d, _entry_brand(src_d));
62 
63 	dest_d->ae_tag = src_d->ae_tag;
64 	dest_d->ae_id = src_d->ae_id;
65 	dest_d->ae_perm = src_d->ae_perm;
66 	dest_d->ae_entry_type = src_d->ae_entry_type;
67 	dest_d->ae_flags = src_d->ae_flags;
68 
69 	return (0);
70 }
71 
72 ssize_t
73 acl_copy_ext(void *buf_p, acl_t acl, ssize_t size)
74 {
75 
76 	errno = ENOSYS;
77 	return (-1);
78 }
79 
80 acl_t
81 acl_copy_int(const void *buf_p)
82 {
83 
84 	errno = ENOSYS;
85 	return (NULL);
86 }
87