1 /* $NetBSD: wcsxfrm.c,v 1.5 2013/05/17 12:55:57 joerg Exp $ */
2
3 /*-
4 * Copyright (c)2003 Citrus Project,
5 * All rights reserved.
6 *
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
9 * are met:
10 * 1. Redistributions of source code must retain the above copyright
11 * notice, this list of conditions and the following disclaimer.
12 * 2. Redistributions in binary form must reproduce the above copyright
13 * notice, this list of conditions and the following disclaimer in the
14 * documentation and/or other materials provided with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
17 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
19 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
20 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
21 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
22 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
23 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
24 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
25 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
26 * SUCH DAMAGE.
27 */
28
29 #include <sys/cdefs.h>
30 #if defined(LIBC_SCCS) && !defined(lint)
31 __RCSID("$NetBSD: wcsxfrm.c,v 1.5 2013/05/17 12:55:57 joerg Exp $");
32 #endif /* LIBC_SCCS and not lint */
33
34 #include "namespace.h"
35
36 #include <assert.h>
37 #include <wchar.h>
38 #include <locale.h>
39 #include "setlocale_local.h"
40
41 /*
42 * Compare strings with using collating information.
43 */
44 size_t
wcsxfrm_l(wchar_t * s1,const wchar_t * s2,size_t n,locale_t loc)45 wcsxfrm_l(wchar_t *s1, const wchar_t *s2, size_t n, locale_t loc)
46 {
47 size_t len;
48
49 /* XXX: LC_COLLATE should be implemented. */
50 /* LINTED */(void)loc;
51
52 len = wcslen(s2);
53 if (len<n)
54 wcscpy(s1, s2);
55 else {
56 /*
57 * SUSv3 says:
58 * If the value returned is n or more, the contents
59 * of the array pointed to by ws1 are unspecified.
60 */
61 /* thus, do nothing */
62 }
63
64 return (len);
65 }
66
67 size_t
wcsxfrm(wchar_t * s1,const wchar_t * s2,size_t n)68 wcsxfrm(wchar_t *s1, const wchar_t *s2, size_t n)
69 {
70 return wcsxfrm_l(s1, s2, n, _current_locale());
71 }
72