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 * At most n characters are moved.
33 * return s1.
34 */
35
36 #pragma weak _wcsncat = wcsncat
37 #pragma weak _wsncat = wsncat
38
39 #include "lint.h"
40 #include <stdlib.h>
41 #include <wchar.h>
42
43 wchar_t *
wcsncat(wchar_t * s1,const wchar_t * s2,size_t n)44 wcsncat(wchar_t *s1, const wchar_t *s2, size_t n)
45 {
46 wchar_t *os1 = s1;
47
48 while (*s1++) /* find end of s1 */
49 ;
50 ++n;
51 --s1;
52 while ((*s1++ = *s2++) != 0) /* copy s2 to s1 */
53 if (--n == 0) { /* at most n chars */
54 *--s1 = 0;
55 break;
56 }
57 return (os1);
58 }
59
60 wchar_t *
wsncat(wchar_t * s1,const wchar_t * s2,size_t n)61 wsncat(wchar_t *s1, const wchar_t *s2, size_t n)
62 {
63 return (wcsncat(s1, s2, n));
64 }
65