xref: /titanic_41/usr/src/lib/libc/port/i18n/wsdup.c (revision 4496171313bed39e96f21bc2f9faf2868e267ae3)
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, Version 1.0 only
6  * (the "License").  You may not use this file except in compliance
7  * with the License.
8  *
9  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10  * or http://www.opensolaris.org/os/licensing.
11  * See the License for the specific language governing permissions
12  * and limitations under the License.
13  *
14  * When distributing Covered Code, include this CDDL HEADER in each
15  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16  * If applicable, add the following below this CDDL HEADER, with the
17  * fields enclosed by brackets "[]" replaced with your own identifying
18  * information: Portions Copyright [yyyy] [name of copyright owner]
19  *
20  * CDDL HEADER END
21  */
22 /*
23  * Copyright 2004 Sun Microsystems, Inc.  All rights reserved.
24  * Use is subject to license terms.
25  */
26 
27 #pragma ident	"%Z%%M%	%I%	%E% SMI"
28 
29 /*	Copyright (c) 1986 AT&T	*/
30 /*	  All Rights Reserved  	*/
31 
32 
33 /*
34  *	string duplication
35  *	returns pointer to a new string which is the duplicate of string
36  *	pointed to by s1
37  *	NULL is returned if new string can't be created
38  */
39 
40 #include "lint.h"
41 #include <stdlib.h>
42 #include <widec.h>
43 #include "libc.h"
44 
45 wchar_t *
46 wsdup(const wchar_t *s1)
47 {
48 	wchar_t *s2;
49 
50 	s2 = malloc((_wcslen(s1) + 1) * sizeof (wchar_t));
51 	return (s2 == NULL ? NULL : _wcscpy(s2, s1));
52 }
53