xref: /openbsd/lib/libc/string/wcscat.c (revision 17df1aa7)
1 /*	$OpenBSD: wcscat.c,v 1.3 2005/08/08 08:05:37 espie Exp $	*/
2 /*	$NetBSD: wcscat.c,v 1.2 2001/01/03 14:29:36 lukem Exp $	*/
3 
4 /*-
5  * Copyright (c)1999 Citrus Project,
6  * All rights reserved.
7  *
8  * Redistribution and use in source and binary forms, with or without
9  * modification, are permitted provided that the following conditions
10  * are met:
11  * 1. Redistributions of source code must retain the above copyright
12  *    notice, this list of conditions and the following disclaimer.
13  * 2. Redistributions in binary form must reproduce the above copyright
14  *    notice, this list of conditions and the following disclaimer in the
15  *    documentation and/or other materials provided with the distribution.
16  *
17  * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
18  * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19  * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20  * ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
21  * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22  * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23  * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24  * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25  * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26  * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27  * SUCH DAMAGE.
28  *
29  *	citrus Id: wcscat.c,v 1.1 1999/12/29 21:47:45 tshiozak Exp
30  */
31 
32 #include <wchar.h>
33 
34 #if defined(APIWARN)
35 __warn_references(wcscat,
36     "warning: wcscat() is almost always misused, please use wcslcat()");
37 #endif
38 
39 wchar_t *
40 wcscat(wchar_t *s1, const wchar_t *s2)
41 {
42 	wchar_t *p;
43 	wchar_t *q;
44 	const wchar_t *r;
45 
46 	p = s1;
47 	while (*p)
48 		p++;
49 	q = p;
50 	r = s2;
51 	while (*r)
52 		*q++ = *r++;
53 	*q = '\0';
54 	return s1;
55 }
56