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, Version 1.0 only
6 * (the "License"). You may not use this file except in compliance
7 * with the License.
8 *
9 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
10 * or http://www.opensolaris.org/os/licensing.
11 * See the License for the specific language governing permissions
12 * and limitations under the License.
13 *
14 * When distributing Covered Code, include this CDDL HEADER in each
15 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
16 * If applicable, add the following below this CDDL HEADER, with the
17 * fields enclosed by brackets "[]" replaced with your own identifying
18 * information: Portions Copyright [yyyy] [name of copyright owner]
19 *
20 * CDDL HEADER END
21 */
22 /* Copyright (c) 1984 AT&T */
23 /* All Rights Reserved */
24
25 #pragma ident "%Z%%M% %I% %E% SMI" /* from S5R2 1.1 */
26
27 /*LINTLIBRARY*/
28 /*
29 * Compare n bytes: s1>s2: >0 s1==s2: 0 s1<s2: <0
30 */
31 int
memcmp(s1,s2,n)32 memcmp(s1, s2, n)
33 register char *s1, *s2;
34 register int n;
35 {
36 int diff;
37
38 if (s1 != s2)
39 while (--n >= 0)
40 if (diff = *s1++ - *s2++)
41 return (diff);
42 return (0);
43 }
44