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 /* 23*0Sstevel@tonic-gate * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24*0Sstevel@tonic-gate * Use is subject to license terms. 25*0Sstevel@tonic-gate */ 26*0Sstevel@tonic-gate 27*0Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 28*0Sstevel@tonic-gate 29*0Sstevel@tonic-gate /* Copyright (c) 1988 AT&T */ 30*0Sstevel@tonic-gate /* All Rights Reserved */ 31*0Sstevel@tonic-gate 32*0Sstevel@tonic-gate 33*0Sstevel@tonic-gate #if !defined(_KMDB) && !defined(_BOOT) && !defined(_KERNEL) 34*0Sstevel@tonic-gate 35*0Sstevel@tonic-gate #pragma weak memcmp = _memcmp 36*0Sstevel@tonic-gate 37*0Sstevel@tonic-gate #include "synonyms.h" 38*0Sstevel@tonic-gate #endif /* !_KMDB && !_BOOT && !_KERNEL */ 39*0Sstevel@tonic-gate 40*0Sstevel@tonic-gate #include <sys/types.h> 41*0Sstevel@tonic-gate #if defined(_KERNEL) 42*0Sstevel@tonic-gate #include <sys/systm.h> 43*0Sstevel@tonic-gate #else 44*0Sstevel@tonic-gate #include <string.h> 45*0Sstevel@tonic-gate #include <stddef.h> 46*0Sstevel@tonic-gate #endif 47*0Sstevel@tonic-gate 48*0Sstevel@tonic-gate /* 49*0Sstevel@tonic-gate * Compare n bytes: s1>s2: >0 s1==s2: 0 s1<s2: <0 50*0Sstevel@tonic-gate */ 51*0Sstevel@tonic-gate int 52*0Sstevel@tonic-gate memcmp(const void *s1, const void *s2, size_t n) 53*0Sstevel@tonic-gate { 54*0Sstevel@tonic-gate if (s1 != s2 && n != 0) { 55*0Sstevel@tonic-gate const unsigned char *ps1 = s1; 56*0Sstevel@tonic-gate const unsigned char *ps2 = s2; 57*0Sstevel@tonic-gate 58*0Sstevel@tonic-gate do { 59*0Sstevel@tonic-gate if (*ps1++ != *ps2++) 60*0Sstevel@tonic-gate return (ps1[-1] - ps2[-1]); 61*0Sstevel@tonic-gate } while (--n != 0); 62*0Sstevel@tonic-gate } 63*0Sstevel@tonic-gate 64*0Sstevel@tonic-gate return (0); 65*0Sstevel@tonic-gate } 66