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 /* 23 * Copyright 2004 Sun Microsystems, Inc. All rights reserved. 24 * Use is subject to license terms. 25 */ 26 27 #pragma ident "%Z%%M% %I% %E% SMI" 28 29 /* Copyright (c) 1988 AT&T */ 30 /* All Rights Reserved */ 31 32 33 #include "synonyms.h" 34 #include <string.h> 35 #include <sys/types.h> 36 37 /* 38 * Compare strings (at most n bytes) 39 * returns: s1>s2; >0 s1==s2; 0 s1<s2; <0 40 */ 41 int 42 strncmp(const char *s1, const char *s2, size_t n) 43 { 44 n++; 45 if (s1 == s2) 46 return (0); 47 while (--n != 0 && *s1 == *s2++) 48 if (*s1++ == '\0') 49 return (0); 50 return (n == 0 ? 0 : *(unsigned char *)s1 - *(unsigned char *)--s2); 51 } 52