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 #pragma ident "%Z%%M% %I% %E% SMI" 31 32 #include <sys/types.h> 33 #include "libmail.h" 34 35 /* 36 * This routine looks for string2 in string1. 37 * If found, it returns the position string2 is found at, 38 * otherwise it returns a -1. 39 */ 40 int 41 substr(char *string1, char *string2) 42 { 43 int i, j, len1, len2; 44 45 /* the size of the substring will always fit into an int */ 46 /*LINTED*/ 47 len1 = (int)strlen(string1); 48 /*LINTED*/ 49 len2 = (int)strlen(string2); 50 for (i = 0; i < len1 - len2 + 1; i++) { 51 for (j = 0; j < len2 && string1[i+j] == string2[j]; j++) 52 continue; 53 if (j == len2) 54 return (i); 55 } 56 return (-1); 57 } 58