1*0Sstevel@tonic-gate /*
2*0Sstevel@tonic-gate  * CDDL HEADER START
3*0Sstevel@tonic-gate  *
4*0Sstevel@tonic-gate  * The contents of this file are subject to the terms of the
5*0Sstevel@tonic-gate  * Common Development and Distribution License, Version 1.0 only
6*0Sstevel@tonic-gate  * (the "License").  You may not use this file except in compliance
7*0Sstevel@tonic-gate  * with the License.
8*0Sstevel@tonic-gate  *
9*0Sstevel@tonic-gate  * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10*0Sstevel@tonic-gate  * or http://www.opensolaris.org/os/licensing.
11*0Sstevel@tonic-gate  * See the License for the specific language governing permissions
12*0Sstevel@tonic-gate  * and limitations under the License.
13*0Sstevel@tonic-gate  *
14*0Sstevel@tonic-gate  * When distributing Covered Code, include this CDDL HEADER in each
15*0Sstevel@tonic-gate  * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16*0Sstevel@tonic-gate  * If applicable, add the following below this CDDL HEADER, with the
17*0Sstevel@tonic-gate  * fields enclosed by brackets "[]" replaced with your own identifying
18*0Sstevel@tonic-gate  * information: Portions Copyright [yyyy] [name of copyright owner]
19*0Sstevel@tonic-gate  *
20*0Sstevel@tonic-gate  * CDDL HEADER END
21*0Sstevel@tonic-gate  */
22*0Sstevel@tonic-gate /*	Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T	*/
23*0Sstevel@tonic-gate /*	  All Rights Reserved  	*/
24*0Sstevel@tonic-gate 
25*0Sstevel@tonic-gate 
26*0Sstevel@tonic-gate /*
27*0Sstevel@tonic-gate  * Copyright (c) 1999, by Sun Microsystems, Inc.
28*0Sstevel@tonic-gate  * All rights reserved.
29*0Sstevel@tonic-gate  */
30*0Sstevel@tonic-gate 
31*0Sstevel@tonic-gate #pragma ident	"%Z%%M%	%I%	%E% SMI"
32*0Sstevel@tonic-gate /*LINTLIBRARY*/
33*0Sstevel@tonic-gate 
34*0Sstevel@tonic-gate #include "synonyms.h"
35*0Sstevel@tonic-gate #include <sys/types.h>
36*0Sstevel@tonic-gate #include "libmail.h"
37*0Sstevel@tonic-gate 
38*0Sstevel@tonic-gate /*
39*0Sstevel@tonic-gate  *	This routine looks for string2 in string1.
40*0Sstevel@tonic-gate  *	If found, it returns the position string2 is found at,
41*0Sstevel@tonic-gate  *	otherwise it returns a -1.
42*0Sstevel@tonic-gate  */
43*0Sstevel@tonic-gate int
44*0Sstevel@tonic-gate substr(char *string1, char *string2)
45*0Sstevel@tonic-gate {
46*0Sstevel@tonic-gate 	int i, j, len1, len2;
47*0Sstevel@tonic-gate 
48*0Sstevel@tonic-gate 	/* the size of the substring will always fit into an int */
49*0Sstevel@tonic-gate 	/*LINTED*/
50*0Sstevel@tonic-gate 	len1 = (int)strlen(string1);
51*0Sstevel@tonic-gate 	/*LINTED*/
52*0Sstevel@tonic-gate 	len2 = (int)strlen(string2);
53*0Sstevel@tonic-gate 	for (i = 0; i < len1 - len2 + 1; i++) {
54*0Sstevel@tonic-gate 		for (j = 0; j < len2 && string1[i+j] == string2[j]; j++);
55*0Sstevel@tonic-gate 		if (j == len2)
56*0Sstevel@tonic-gate 			return (i);
57*0Sstevel@tonic-gate 	}
58*0Sstevel@tonic-gate 	return (-1);
59*0Sstevel@tonic-gate }
60