1 /* $OpenBSD: wcsstr.c,v 1.3 2005/08/08 08:05:37 espie Exp $ */ 2 /* $NetBSD: wcsstr.c,v 1.3 2003/03/05 20:18:17 tshiozak 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: wcsstr.c,v 1.2 2000/12/21 05:07:25 itojun Exp 30 */ 31 32 #include <wchar.h> 33 34 wchar_t * 35 #ifdef WCSWCS 36 wcswcs(const wchar_t *big, const wchar_t *little) 37 #else 38 wcsstr(const wchar_t *big, const wchar_t *little) 39 #endif 40 { 41 const wchar_t *p; 42 const wchar_t *q; 43 const wchar_t *r; 44 45 if (!*little) { 46 /* LINTED interface specification */ 47 return (wchar_t *)big; 48 } 49 if (wcslen(big) < wcslen(little)) 50 return NULL; 51 52 p = big; 53 q = little; 54 while (*p) { 55 q = little; 56 r = p; 57 while (*q) { 58 if (*r != *q) 59 break; 60 q++; 61 r++; 62 } 63 if (!*q) { 64 /* LINTED interface specification */ 65 return (wchar_t *)p; 66 } 67 p++; 68 } 69 return NULL; 70 } 71
