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 (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 22 /* 23 * Copyright (c) 1992, 2010, Oracle and/or its affiliates. All rights reserved. 24 */ 25 26 /* 27 * Compare strings ignoring case difference. 28 * returns: s1>s2: >0 s1==s2: 0 s1<s2: <0 29 * All letters are converted to the lowercase and compared. 30 */ 31 32 #pragma weak _wsncasecmp = wsncasecmp 33 34 #include "lint.h" 35 #include <stdlib.h> 36 #include <widec.h> 37 #include "libc.h" 38 39 int 40 wcsncasecmp(const wchar_t *s1, const wchar_t *s2, size_t n) 41 { 42 if (s1 == s2) 43 return (0); 44 45 n++; 46 while (--n > 0 && towlower(*s1) == towlower(*s2++)) 47 if (*s1++ == 0) 48 return (0); 49 return ((n == 0) ? 0 : (towlower(*s1) - towlower(*(s2 - 1)))); 50 } 51 52 int 53 wsncasecmp(const wchar_t *s1, const wchar_t *s2, size_t n) 54 { 55 return (wcsncasecmp(s1, s2, n)); 56 }