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 _wscasecmp = wscasecmp
33
34 #include "lint.h"
35 #include <stdlib.h>
36 #include <widec.h>
37 #include "libc.h"
38
39 int
wcscasecmp(const wchar_t * s1,const wchar_t * s2)40 wcscasecmp(const wchar_t *s1, const wchar_t *s2)
41 {
42 if (s1 == s2)
43 return (0);
44
45 while (towlower(*s1) == towlower(*s2++))
46 if (*s1++ == 0)
47 return (0);
48 return (towlower(*s1) - towlower(*(s2 - 1)));
49 }
50
51 int
wscasecmp(const wchar_t * s1,const wchar_t * s2)52 wscasecmp(const wchar_t *s1, const wchar_t *s2)
53 {
54 return (wcscasecmp(s1, s2));
55 }
56