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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright 2008 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 28 /* All Rights Reserved */ 29 30 #include <sys/types.h> 31 #include "libmail.h" 32 33 /* 34 * This routine looks for string2 in string1. 35 * If found, it returns the position string2 is found at, 36 * otherwise it returns a -1. 37 */ 38 int 39 substr(char *string1, char *string2) 40 { 41 int i, j, len1, len2; 42 43 /* the size of the substring will always fit into an int */ 44 /*LINTED*/ 45 len1 = (int)strlen(string1); 46 /*LINTED*/ 47 len2 = (int)strlen(string2); 48 for (i = 0; i < len1 - len2 + 1; i++) { 49 for (j = 0; j < len2 && string1[i+j] == string2[j]; j++) 50 continue; 51 if (j == len2) 52 return (i); 53 } 54 return (-1); 55 } 56