xref: /illumos-gate/usr/src/lib/libc/port/i18n/wscat.c (revision d48be21240dfd051b689384ce2b23479d757f2d8)
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 /*
23  * Copyright 2008 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 /*	Copyright (c) 1986 AT&T	*/
28 /*	  All Rights Reserved	*/
29 
30 /*
31  * Concatenate s2 on the end of s1. S1's space must be large enough.
32  * return s1.
33  */
34 
35 #pragma weak _wcscat = wcscat
36 #pragma weak _wscat = wscat
37 
38 #include "lint.h"
39 #include <stdlib.h>
40 #include <wchar.h>
41 
42 wchar_t *
43 wcscat(wchar_t *s1, const wchar_t *s2)
44 {
45 	wchar_t *os1 = s1;
46 
47 	while (*s1++) /* find end of s1 */
48 		;
49 	--s1;
50 	while ((*s1++ = *s2++) != 0) /* copy s2 to s1 */
51 		;
52 	return (os1);
53 }
54 
55 wchar_t *
56 wscat(wchar_t *s1, const wchar_t *s2)
57 {
58 	return (wcscat(s1, s2));
59 }
60