10Sstevel@tonic-gate /* 20Sstevel@tonic-gate * CDDL HEADER START 30Sstevel@tonic-gate * 40Sstevel@tonic-gate * The contents of this file are subject to the terms of the 50Sstevel@tonic-gate * Common Development and Distribution License, Version 1.0 only 60Sstevel@tonic-gate * (the "License"). You may not use this file except in compliance 70Sstevel@tonic-gate * with the License. 80Sstevel@tonic-gate * 90Sstevel@tonic-gate * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 100Sstevel@tonic-gate * or http://www.opensolaris.org/os/licensing. 110Sstevel@tonic-gate * See the License for the specific language governing permissions 120Sstevel@tonic-gate * and limitations under the License. 130Sstevel@tonic-gate * 140Sstevel@tonic-gate * When distributing Covered Code, include this CDDL HEADER in each 150Sstevel@tonic-gate * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 160Sstevel@tonic-gate * If applicable, add the following below this CDDL HEADER, with the 170Sstevel@tonic-gate * fields enclosed by brackets "[]" replaced with your own identifying 180Sstevel@tonic-gate * information: Portions Copyright [yyyy] [name of copyright owner] 190Sstevel@tonic-gate * 200Sstevel@tonic-gate * CDDL HEADER END 210Sstevel@tonic-gate */ 22*1219Sraf 230Sstevel@tonic-gate /* Copyright (c) 1984, 1986, 1987, 1988, 1989 AT&T */ 240Sstevel@tonic-gate /* All Rights Reserved */ 250Sstevel@tonic-gate 260Sstevel@tonic-gate /* 27*1219Sraf * Copyright 2006 Sun Microsystems, Inc. All rights reserved. 28*1219Sraf * Use is subject to license terms. 290Sstevel@tonic-gate */ 300Sstevel@tonic-gate 310Sstevel@tonic-gate #pragma ident "%Z%%M% %I% %E% SMI" 320Sstevel@tonic-gate /*LINTLIBRARY*/ 330Sstevel@tonic-gate 340Sstevel@tonic-gate /* 350Sstevel@tonic-gate * NAME 360Sstevel@tonic-gate * casncmp - compare strings ignoring case 370Sstevel@tonic-gate * 380Sstevel@tonic-gate * SYNOPSIS 390Sstevel@tonic-gate * int casncmp(char *s1, char *s2, ssize_t n) 400Sstevel@tonic-gate * 410Sstevel@tonic-gate * DESCRIPTION 420Sstevel@tonic-gate * Compare two strings ignoring case differences. 430Sstevel@tonic-gate * Stop after n bytes or the trailing NUL. 440Sstevel@tonic-gate */ 450Sstevel@tonic-gate 46*1219Sraf #include "c_synonyms.h" 470Sstevel@tonic-gate #include "libmail.h" 480Sstevel@tonic-gate #include <ctype.h> 490Sstevel@tonic-gate #include <sys/types.h> 500Sstevel@tonic-gate 510Sstevel@tonic-gate int 520Sstevel@tonic-gate casncmp(char *s1, char *s2, ssize_t n) 530Sstevel@tonic-gate { 540Sstevel@tonic-gate if (s1 == s2) 550Sstevel@tonic-gate return (0); 560Sstevel@tonic-gate while ((--n >= 0) && (tolower(*s1) == tolower(*s2))) { 570Sstevel@tonic-gate s2++; 580Sstevel@tonic-gate if (*s1++ == '\0') 590Sstevel@tonic-gate return (0); 600Sstevel@tonic-gate } 610Sstevel@tonic-gate return ((n < 0)? 0: (*s1 - *s2)); 620Sstevel@tonic-gate } 63