1/*
2 * Copyright (c) 2002-2004 Tim J. Robbins. All rights reserved.
3 *
4 * ja_JP.SJIS locale table for BSD4.4/rune
5 * version 1.0
6 * (C) Sin'ichiro MIYATANI / Phase One, Inc
7 * May 12, 1995
8 *
9 * Redistribution and use in source and binary forms, with or without
10 * modification, are permitted provided that the following conditions
11 * are met:
12 * 1. Redistributions of source code must retain the above copyright
13 * notice, this list of conditions and the following disclaimer.
14 * 2. Redistributions in binary form must reproduce the above copyright
15 * notice, this list of conditions and the following disclaimer in the
16 * documentation and/or other materials provided with the distribution.
17 * 3. All advertising materials mentioning features or use of this software
18 * must display the following acknowledgement:
19 * This product includes software developed by Phase One, Inc.
20 * 4. The name of Phase One, Inc. may be used to endorse or promote products
21 * derived from this software without specific prior written permission.
22 *
23 * THIS SOFTWARE IS PROVIDED BY THE REGENTS AND CONTRIBUTORS ``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 REGENTS OR CONTRIBUTORS 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#if defined(LIBC_SCCS) && !defined(lint)
37static char sccsid[] = "@(#)mskanji.c 1.0 (Phase One) 5/5/95";
38#endif /* LIBC_SCCS and not lint */
39#include <sys/param.h>
40__FBSDID("$FreeBSD: head/lib/libc/locale/mskanji.c 129153 2004-05-12 14:09:04Z tjr $");
41
42#include <errno.h>
43#include <runetype.h>
44#include <stdlib.h>
45#include <string.h>
46#include <wchar.h>
47#include "mblocal.h"
48
49int _MSKanji_init(_RuneLocale *);
50size_t _MSKanji_mbrtowc(wchar_t * __restrict, const char * __restrict, size_t,
51 mbstate_t * __restrict);
52int _MSKanji_mbsinit(const mbstate_t *);
53size_t _MSKanji_wcrtomb(char * __restrict, wchar_t, mbstate_t * __restrict);
54
55typedef struct {
56 int count;
57 u_char bytes[2];
58} _MSKanjiState;
59
60int
61_MSKanji_init(_RuneLocale *rl)
62{
63
64 __mbrtowc = _MSKanji_mbrtowc;
65 __wcrtomb = _MSKanji_wcrtomb;
66 __mbsinit = _MSKanji_mbsinit;
67 _CurrentRuneLocale = rl;
68 __mb_cur_max = 2;
69 return (0);
70}
71
72int
73_MSKanji_mbsinit(const mbstate_t *ps)
74{
75
76 return (ps == NULL || ((const _MSKanjiState *)ps)->count == 0);
77}
78
79size_t
80_MSKanji_mbrtowc(wchar_t * __restrict pwc, const char * __restrict s, size_t n,
81 mbstate_t * __restrict ps)
82{
83 _MSKanjiState *ms;
84 wchar_t wc;
85 int len, ocount;
86 size_t ncopy;
87
88 ms = (_MSKanjiState *)ps;
89
90 if (ms->count < 0 || ms->count > sizeof(ms->bytes)) {
91 errno = EINVAL;
92 return ((size_t)-1);
93 }
94
95 if (s == NULL) {
96 s = "";
97 n = 1;
98 pwc = NULL;
99 }
100
101 ncopy = MIN(MIN(n, MB_CUR_MAX), sizeof(ms->bytes) - ms->count);
102 memcpy(ms->bytes + ms->count, s, ncopy);
103 ocount = ms->count;
104 ms->count += ncopy;
105 s = (char *)ms->bytes;
106 n = ms->count;
107
108 if (n == 0)
109 /* Incomplete multibyte sequence */
110 return ((size_t)-2);
111 len = 1;
112 wc = *s++ & 0xff;
113 if ((wc > 0x80 && wc < 0xa0) || (wc >= 0xe0 && wc < 0xfd)) {
114 if (n < 2)
115 /* Incomplete multibyte sequence */
116 return ((size_t)-2);
117 if (*s == '\0') {
118 errno = EILSEQ;
119 return ((size_t)-1);
120 }
121 wc = (wc << 8) | (*s++ & 0xff);
122 len = 2;
123 }
124 if (pwc != NULL)
125 *pwc = wc;
126 ms->count = 0;
127 return (wc == L'\0' ? 0 : len - ocount);
128}
129
130size_t
131_MSKanji_wcrtomb(char * __restrict s, wchar_t wc, mbstate_t * __restrict ps)
132{
133 _MSKanjiState *ms;
134 int len, i;
135
136 ms = (_MSKanjiState *)ps;
137
138 if (ms->count != 0) {
139 errno = EINVAL;
140 return ((size_t)-1);
141 }
142
143 if (s == NULL)
144 /* Reset to initial shift state (no-op) */
145 return (1);
146 len = (wc > 0x100) ? 2 : 1;
147 for (i = len; i-- > 0; )
148 *s++ = wc >> (i << 3);
149 return (len);
150}