1*2d08521bSGarrett D'Amore /* 2*2d08521bSGarrett D'Amore * CDDL HEADER START 3*2d08521bSGarrett D'Amore * 4*2d08521bSGarrett D'Amore * The contents of this file are subject to the terms of the 5*2d08521bSGarrett D'Amore * Common Development and Distribution License (the "License"). 6*2d08521bSGarrett D'Amore * You may not use this file except in compliance with the License. 7*2d08521bSGarrett D'Amore * 8*2d08521bSGarrett D'Amore * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9*2d08521bSGarrett D'Amore * or http://www.opensolaris.org/os/licensing. 10*2d08521bSGarrett D'Amore * See the License for the specific language governing permissions 11*2d08521bSGarrett D'Amore * and limitations under the License. 12*2d08521bSGarrett D'Amore * 13*2d08521bSGarrett D'Amore * When distributing Covered Code, include this CDDL HEADER in each 14*2d08521bSGarrett D'Amore * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15*2d08521bSGarrett D'Amore * If applicable, add the following below this CDDL HEADER, with the 16*2d08521bSGarrett D'Amore * fields enclosed by brackets "[]" replaced with your own identifying 17*2d08521bSGarrett D'Amore * information: Portions Copyright [yyyy] [name of copyright owner] 18*2d08521bSGarrett D'Amore * 19*2d08521bSGarrett D'Amore * CDDL HEADER END 20*2d08521bSGarrett D'Amore */ 21*2d08521bSGarrett D'Amore 22*2d08521bSGarrett D'Amore /* 23*2d08521bSGarrett D'Amore * Copyright 2013 Garrett D'Amore <garrett@damore.org> 24*2d08521bSGarrett D'Amore * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. 25*2d08521bSGarrett D'Amore */ 26*2d08521bSGarrett D'Amore 27*2d08521bSGarrett D'Amore /* Copyright (c) 1988 AT&T */ 28*2d08521bSGarrett D'Amore /* All Rights Reserved */ 29*2d08521bSGarrett D'Amore 30*2d08521bSGarrett D'Amore #include "lint.h" 31*2d08521bSGarrett D'Amore #include <string.h> 32*2d08521bSGarrett D'Amore #include <ctype.h> 33*2d08521bSGarrett D'Amore #include <sys/types.h> 34*2d08521bSGarrett D'Amore #include <locale.h> 35*2d08521bSGarrett D'Amore #include "lctype.h" 36*2d08521bSGarrett D'Amore #include "localeimpl.h" 37*2d08521bSGarrett D'Amore 38*2d08521bSGarrett D'Amore /* 39*2d08521bSGarrett D'Amore * strcasestr() locates the first occurrence in the string s1 of the 40*2d08521bSGarrett D'Amore * sequence of characters (excluding the terminating null character) 41*2d08521bSGarrett D'Amore * in the string s2, ignoring case. strcasestr() returns a pointer 42*2d08521bSGarrett D'Amore * to the located string, or a null pointer if the string is not found. 43*2d08521bSGarrett D'Amore * If s2 is empty, the function returns s1. 44*2d08521bSGarrett D'Amore */ 45*2d08521bSGarrett D'Amore 46*2d08521bSGarrett D'Amore char * 47*2d08521bSGarrett D'Amore strcasestr_l(const char *s1, const char *s2, locale_t loc) 48*2d08521bSGarrett D'Amore { 49*2d08521bSGarrett D'Amore const int *cm = loc->ctype->lc_trans_lower; 50*2d08521bSGarrett D'Amore const uchar_t *us1 = (const uchar_t *)s1; 51*2d08521bSGarrett D'Amore const uchar_t *us2 = (const uchar_t *)s2; 52*2d08521bSGarrett D'Amore const uchar_t *tptr; 53*2d08521bSGarrett D'Amore int c; 54*2d08521bSGarrett D'Amore 55*2d08521bSGarrett D'Amore if (us2 == NULL || *us2 == '\0') 56*2d08521bSGarrett D'Amore return ((char *)us1); 57*2d08521bSGarrett D'Amore 58*2d08521bSGarrett D'Amore c = cm[*us2]; 59*2d08521bSGarrett D'Amore while (*us1 != '\0') { 60*2d08521bSGarrett D'Amore if (c == cm[*us1++]) { 61*2d08521bSGarrett D'Amore tptr = us1; 62*2d08521bSGarrett D'Amore while (cm[c = *++us2] == cm[*us1++] && c != '\0') 63*2d08521bSGarrett D'Amore continue; 64*2d08521bSGarrett D'Amore if (c == '\0') 65*2d08521bSGarrett D'Amore return ((char *)tptr - 1); 66*2d08521bSGarrett D'Amore us1 = tptr; 67*2d08521bSGarrett D'Amore us2 = (const uchar_t *)s2; 68*2d08521bSGarrett D'Amore c = cm[*us2]; 69*2d08521bSGarrett D'Amore } 70*2d08521bSGarrett D'Amore } 71*2d08521bSGarrett D'Amore 72*2d08521bSGarrett D'Amore return (NULL); 73*2d08521bSGarrett D'Amore } 74*2d08521bSGarrett D'Amore 75*2d08521bSGarrett D'Amore char * 76*2d08521bSGarrett D'Amore strcasestr(const char *s1, const char *s2) 77*2d08521bSGarrett D'Amore { 78*2d08521bSGarrett D'Amore return (strcasestr_l(s1, s2, uselocale(NULL))); 79*2d08521bSGarrett D'Amore } 80