1143880Spjd/*- 2143880Spjd * Copyright (c) 1990, 1993 3143880Spjd * The Regents of the University of California. All rights reserved. 4143880Spjd * 5143880Spjd * This code is derived from software contributed to Berkeley by 6143880Spjd * Chris Torek. 7143880Spjd * 8143880Spjd * Copyright (c) 2011 The FreeBSD Foundation 9143880Spjd * All rights reserved. 10263351Sjmmv * Portions of this software were developed by David Chisnall 11143880Spjd * under sponsorship from the FreeBSD Foundation. 12143880Spjd * 13143880Spjd * Redistribution and use in source and binary forms, with or without 14143880Spjd * modification, are permitted provided that the following conditions 15143880Spjd * are met: 16143880Spjd * 1. Redistributions of source code must retain the above copyright 17143880Spjd * notice, this list of conditions and the following disclaimer. 18143880Spjd * 2. Redistributions in binary form must reproduce the above copyright 19143880Spjd * notice, this list of conditions and the following disclaimer in the 20143880Spjd * documentation and/or other materials provided with the distribution. 21143880Spjd * 3. Neither the name of the University nor the names of its contributors 22143880Spjd * may be used to endorse or promote products derived from this software 23143880Spjd * without specific prior written permission. 24143880Spjd * 25143880Spjd * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``AS IS'' AND 26143880Spjd * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 27143880Spjd * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 28263351Sjmmv * ARE DISCLAIMED. IN NO EVENT SHALL THE REGENTS OR CONTRIBUTORS BE LIABLE 29143880Spjd * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 30143880Spjd * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 31143880Spjd * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 32143880Spjd * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 33143880Spjd * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 34143880Spjd * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 35143880Spjd * SUCH DAMAGE. 36143880Spjd */ 37143880Spjd 38143880Spjd#include <sys/cdefs.h> 39143880Spjd__FBSDID("$FreeBSD: releng/10.3/lib/libc/string/strcasestr.c 251069 2013-05-28 20:57:40Z emaste $"); 40143880Spjd 41143880Spjd#include <ctype.h> 42143880Spjd#include <string.h> 43#include "xlocale_private.h" 44 45/* 46 * Find the first occurrence of find in s, ignore case. 47 */ 48char * 49strcasestr_l(const char *s, const char *find, locale_t locale) 50{ 51 char c, sc; 52 size_t len; 53 FIX_LOCALE(locale); 54 55 if ((c = *find++) != 0) { 56 c = tolower_l((unsigned char)c, locale); 57 len = strlen(find); 58 do { 59 do { 60 if ((sc = *s++) == 0) 61 return (NULL); 62 } while ((char)tolower_l((unsigned char)sc, locale) != c); 63 } while (strncasecmp_l(s, find, len, locale) != 0); 64 s--; 65 } 66 return ((char *)s); 67} 68char * 69strcasestr(const char *s, const char *find) 70{ 71 return strcasestr_l(s, find, __get_locale()); 72} 73