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