/*
* CDDL HEADER START
*
* The contents of this file are subject to the terms of the
* Common Development and Distribution License (the "License").
* You may not use this file except in compliance with the License.
*
* You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
* or http://www.opensolaris.org/os/licensing.
* See the License for the specific language governing permissions
* and limitations under the License.
*
* When distributing Covered Code, include this CDDL HEADER in each
* file and include the License file at usr/src/OPENSOLARIS.LICENSE.
* If applicable, add the following below this CDDL HEADER, with the
* fields enclosed by brackets "[]" replaced with your own identifying
* information: Portions Copyright [yyyy] [name of copyright owner]
*
* CDDL HEADER END
*/
/*
* Copyright 2008 Sun Microsystems, Inc. All rights reserved.
* Use is subject to license terms.
*/
/* Copyright (c) 1986 AT&T */
/* All Rights Reserved */
#pragma ident "%Z%%M% %I% %E% SMI"
/*
* Returns a pointer to the first occurrnce of ws1 in ws2.
*/
#pragma weak _wcswcs = wcswcs
#include "lint.h"
#include <stdlib.h>
wchar_t *
wcswcs(const wchar_t *ws1, const wchar_t *ws2)
{
const wchar_t *s1, *s2;
const wchar_t *tptr;
wchar_t c;
s1 = ws1;
s2 = ws2;
if (s2 == NULL || *s2 == 0)
return ((wchar_t *)s1);
c = *s2;
while (*s1)
if (*s1++ == c) {
tptr = s1;
while ((c = *++s2) == *s1++ && c)
;
if (c == 0)
return ((wchar_t *)tptr - 1);
s1 = tptr;
s2 = ws2;
c = *s2;
}
return (NULL);
}