1 /*
2 * Copyright 2013 Garrett D'Amore <garrett@damore.org>
3 * Copyright 2011 Nexenta Systems, Inc. All rights reserved.
4 * Copyright (c) 1995 Alex Tatmanjants <alex@elvisti.kiev.ua>
5 * at Electronni Visti IA, Kiev, Ukraine.
6 * All rights reserved.
7 *
8 * Redistribution and use in source and binary forms, with or without
9 * modification, are permitted provided that the following conditions
10 * are met:
11 * 1. Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * 2. Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in the
15 * documentation and/or other materials provided with the distribution.
16 *
17 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``AS IS'' AND
18 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
19 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
20 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR BE LIABLE
21 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
22 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
23 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
24 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
25 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
26 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 */
29
30 #include "lint.h"
31 #include <stdlib.h>
32 #include <string.h>
33 #include <wchar.h>
34 #include <assert.h>
35 #include "collate.h"
36
37 #define WCS_XFRM_OFFSET 1
38
39 size_t
wcsxfrm_l(wchar_t * _RESTRICT_KYWD dest,const wchar_t * _RESTRICT_KYWD src,size_t len,locale_t loc)40 wcsxfrm_l(wchar_t *_RESTRICT_KYWD dest,
41 const wchar_t *_RESTRICT_KYWD src, size_t len, locale_t loc)
42 {
43 size_t slen;
44 const struct lc_collate *lcc = loc->collate;
45
46 if (*src == L'\0') {
47 if (len != 0)
48 *dest = L'\0';
49 return (0);
50 }
51
52 if ((lcc->lc_is_posix) ||
53 ((slen = _collate_wxfrm(lcc, src, dest, len)) == (size_t)-1)) {
54 goto error;
55 }
56
57 /* Add null termination at the correct location. */
58 if (len > slen) {
59 dest[slen] = 0;
60 } else if (len != 0) {
61 dest[len-1] = 0;
62 }
63
64 return (slen);
65
66 error:
67 slen = wcslen(src);
68 if (slen < len)
69 (void) wcscpy(dest, src);
70 else if (len != 0) {
71 (void) wcsncpy(dest, src, len - 1);
72 dest[len - 1] = L'\0';
73 }
74 return (slen);
75 }
76
77 size_t
wcsxfrm(wchar_t * _RESTRICT_KYWD dest,const wchar_t * _RESTRICT_KYWD src,size_t len)78 wcsxfrm(wchar_t *_RESTRICT_KYWD dest,
79 const wchar_t *_RESTRICT_KYWD src, size_t len)
80 {
81 return (wcsxfrm_l(dest, src, len, uselocale(NULL)));
82 }
83