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 #include "lint.h" 30 #include <sys/types.h> 31 #include <wchar.h> 32 #include "libc.h" 33 34 wchar_t * 35 wcsstr(const wchar_t *ws1, const wchar_t *ws2) 36 { 37 const wchar_t *os1, *os2; 38 const wchar_t *tptr; 39 wchar_t c; 40 41 os1 = ws1; 42 os2 = ws2; 43 44 if (os1 == NULL || *os2 == L'\0') 45 return ((wchar_t *)os1); 46 c = *os2; 47 48 while (*os1) 49 if (*os1++ == c) { 50 tptr = os1; 51 while (((c = *++os2) == *os1++) && (c != L'\0')) 52 ; 53 if (c == L'\0') 54 return ((wchar_t *)tptr - 1); 55 os1 = tptr; 56 os2 = ws2; 57 c = *os2; 58 } 59 return (NULL); 60 } 61