xref: /illumos-gate/usr/src/uts/common/syscall/uucopy.c (revision ddb365bfc9e868ad24ccdcb0dc91af18b10df082)
1 /*
2  * CDDL HEADER START
3  *
4  * The contents of this file are subject to the terms of the
5  * Common Development and Distribution License (the "License").
6  * You may not use this file except in compliance with the License.
7  *
8  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
9  * or http://www.opensolaris.org/os/licensing.
10  * See the License for the specific language governing permissions
11  * and limitations under the License.
12  *
13  * When distributing Covered Code, include this CDDL HEADER in each
14  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
15  * If applicable, add the following below this CDDL HEADER, with the
16  * fields enclosed by brackets "[]" replaced with your own identifying
17  * information: Portions Copyright [yyyy] [name of copyright owner]
18  *
19  * CDDL HEADER END
20  */
21 /*
22  * Copyright 2006 Sun Microsystems, Inc.  All rights reserved.
23  * Use is subject to license terms.
24  */
25 
26 #include <sys/systm.h>
27 
28 int
29 uucopy(const void *from, void *to, size_t size)
30 {
31 	label_t ljb;
32 
33 	if (on_fault(&ljb))
34 		return (set_errno(EFAULT));
35 
36 	ucopy(from, to, size);
37 
38 	no_fault();
39 
40 	return (0);
41 }
42 
43 ssize_t
44 uucopystr(const char *from, char *to, size_t size)
45 {
46 	label_t ljb;
47 	size_t len;
48 
49 	if (on_fault(&ljb))
50 		return (set_errno(EFAULT));
51 
52 	ucopystr(from, to, size, &len);
53 
54 	no_fault();
55 
56 	return ((ssize_t)len);
57 }
58