1 /*-
2 * SPDX-License-Identifier: BSD-2-Clause
3 *
4 * Copyright 2010 Nexenta Systems, Inc. All rights reserved.
5 * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua>
6 * at Electronni Visti IA, Kiev, Ukraine.
7 * All rights reserved.
8 *
9 * Copyright (c) 2011 The FreeBSD Foundation
10 *
11 * Portions of this software were developed by David Chisnall
12 * under sponsorship from the FreeBSD Foundation.
13 *
14 * Redistribution and use in source and binary forms, with or without
15 * modification, are permitted provided that the following conditions
16 * are met:
17 * 1. Redistributions of source code must retain the above copyright
18 * notice, this list of conditions and the following disclaimer.
19 * 2. Redistributions in binary form must reproduce the above copyright
20 * notice, this list of conditions and the following disclaimer in the
21 * documentation and/or other materials provided with the distribution.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
24 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
25 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
26 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
27 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
28 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
29 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
30 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
31 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
32 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
33 * SUCH DAMAGE.
34 */
35
36 #include <sys/cdefs.h>
37 #include <stdlib.h>
38 #include <string.h>
39 #include <wchar.h>
40 #include "collate.h"
41
42 size_t
wcsxfrm_l(wchar_t * __restrict dest,const wchar_t * __restrict src,size_t len,locale_t locale)43 wcsxfrm_l(wchar_t * __restrict dest, const wchar_t * __restrict src, size_t len, locale_t locale)
44 {
45 size_t slen;
46 FIX_LOCALE(locale);
47 struct xlocale_collate *table =
48 (struct xlocale_collate*)locale->components[XLC_COLLATE];
49
50 if (*src == L'\0') {
51 if (len != 0)
52 *dest = L'\0';
53 return (0);
54 }
55
56 if ((table->__collate_load_error) ||
57 ((slen = _collate_wxfrm(table, src, dest, len)) == (size_t)-1)) {
58 goto error;
59 }
60
61 /* Add null termination at the correct location. */
62 if (len > slen) {
63 dest[slen] = 0;
64 } else if (len) {
65 dest[len-1] = 0;
66 }
67
68 return (slen);
69
70 error:
71 slen = wcslen(src);
72 if (slen < len)
73 (void) wcscpy(dest, src);
74 else if (len > 0) {
75 (void) wcsncpy(dest, src, len - 1);
76 dest[len - 1] = L'\0';
77 }
78 return (slen);
79 }
80
81 size_t
wcsxfrm(wchar_t * __restrict dest,const wchar_t * __restrict src,size_t len)82 wcsxfrm(wchar_t * __restrict dest, const wchar_t * __restrict src, size_t len)
83 {
84 return wcsxfrm_l(dest, src, len, __get_locale());
85 }
86