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 #pragma ident "%Z%%M% %I% %E% SMI"
31
32 /*
33 * Concatenate s2 on the end of s1. S1's space must be large enough.
34 * At most n characters are moved.
35 * return s1.
36 */
37
38 #pragma weak _wcsncat = wcsncat
39 #pragma weak _wsncat = wsncat
40
41 #include "lint.h"
42 #include <stdlib.h>
43 #include <wchar.h>
44
45 wchar_t *
wcsncat(wchar_t * s1,const wchar_t * s2,size_t n)46 wcsncat(wchar_t *s1, const wchar_t *s2, size_t n)
47 {
48 wchar_t *os1 = s1;
49
50 while (*s1++) /* find end of s1 */
51 ;
52 ++n;
53 --s1;
54 while (*s1++ = *s2++) /* copy s2 to s1 */
55 if (--n == 0) { /* at most n chars */
56 *--s1 = 0;
57 break;
58 }
59 return (os1);
60 }
61
62 wchar_t *
wsncat(wchar_t * s1,const wchar_t * s2,size_t n)63 wsncat(wchar_t *s1, const wchar_t *s2, size_t n)
64 {
65 return (wcsncat(s1, s2, n));
66 }
67