2 * Copyright (c) 2003, 2005 Ryuichiro Imura
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
8 * 1. Redistributions of source code must retain the above copyright
9 * notice, this list of conditions and the following disclaimer.
10 * 2. Redistributions in binary form must reproduce the above copyright
11 * notice, this list of conditions and the following disclaimer in the
12 * documentation and/or other materials provided with the distribution.
14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 #include <sys/cdefs.h>
28 __FBSDID("$FreeBSD$");
30 #include <sys/param.h>
31 #include <sys/kernel.h>
32 #include <sys/systm.h>
33 #include <sys/malloc.h>
34 #include <sys/iconv.h>
36 #include "iconv_converter_if.h"
43 MODULE_DEPEND(iconv_xlat16, libiconv, 2, 2, 2);
46 #define C2I1(c) ((c) & 0x8000 ? ((c) & 0xff) | 0x100 : (c) & 0xff)
47 #define C2I2(c) ((c) & 0x8000 ? ((c) >> 8) & 0x7f : ((c) >> 8) & 0xff)
50 * XLAT16 converter instance
54 uint32_t * d_table[0x200];
57 struct iconv_cspair * d_csp;
61 iconv_xlat16_open(struct iconv_converter_class *dcp,
62 struct iconv_cspair *csp, struct iconv_cspair *cspf, void **dpp)
64 struct iconv_xlat16 *dp;
65 uint32_t *headp, **idxp;
68 dp = (struct iconv_xlat16 *)kobj_create((struct kobj_class*)dcp, M_ICONV, M_WAITOK);
69 headp = (uint32_t *)((caddr_t)csp->cp_data + sizeof(dp->d_table));
70 idxp = (uint32_t **)csp->cp_data;
71 for (i = 0 ; i < 0x200 ; i++) {
73 dp->d_table[i] = headp;
76 dp->d_table[i] = NULL;
81 if (strcmp(csp->cp_to, KICONV_WCTYPE_NAME) != 0) {
82 if (iconv_open(KICONV_WCTYPE_NAME, csp->cp_from, &dp->f_ctp) != 0)
84 if (iconv_open(KICONV_WCTYPE_NAME, csp->cp_to, &dp->t_ctp) != 0)
87 dp->f_ctp = dp->t_ctp = dp;
97 iconv_xlat16_close(void *data)
99 struct iconv_xlat16 *dp = data;
101 if (dp->f_ctp && dp->f_ctp != data)
102 iconv_close(dp->f_ctp);
103 if (dp->t_ctp && dp->t_ctp != data)
104 iconv_close(dp->t_ctp);
105 dp->d_csp->cp_refcount--;
106 kobj_delete((struct kobj*)data, M_ICONV);
111 iconv_xlat16_conv(void *d2p, const char **inbuf,
112 size_t *inbytesleft, char **outbuf, size_t *outbytesleft,
113 int convchar, int casetype)
115 struct iconv_xlat16 *dp = (struct iconv_xlat16*)d2p;
119 size_t in, on, ir, or, inlen;
122 uint16_t c1, c2, ctmp;
124 if (inbuf == NULL || *inbuf == NULL || outbuf == NULL || *outbuf == NULL)
126 ir = in = *inbytesleft;
127 or = on = *outbytesleft;
131 while(ir > 0 && or > 0) {
136 c1 = ir > 1 ? *(src+1) & 0xff : 0;
140 c1 = c2 & 0x80 ? c1 | 0x100 : c1;
141 c2 = c2 & 0x80 ? c2 & 0x7f : c2;
143 if (ir > 1 && dp->d_table[c1] && dp->d_table[c1][c2]) {
145 * inbuf char is a double byte char
149 /* toupper,tolower */
150 if (casetype == KICONV_FROM_LOWER && dp->f_ctp)
151 ctmp = towlower(((u_char)*src << 8) | (u_char)*(src + 1),
153 else if (casetype == KICONV_FROM_UPPER && dp->f_ctp)
154 ctmp = towupper(((u_char)*src << 8) | (u_char)*(src + 1),
164 if (!dp->d_table[c1]) {
169 * inbuf char is a single byte char
173 if (casetype & (KICONV_FROM_LOWER|KICONV_FROM_UPPER))
174 code = dp->d_table[c1][c2];
176 if (casetype == KICONV_FROM_LOWER) {
178 ctmp = towlower((u_char)*src, dp->f_ctp);
179 else if (code & XLAT16_HAS_FROM_LOWER_CASE)
180 ctmp = (u_char)(code >> 16);
181 } else if (casetype == KICONV_FROM_UPPER) {
183 ctmp = towupper((u_char)*src, dp->f_ctp);
184 else if (code & XLAT16_HAS_FROM_UPPER_CASE)
185 ctmp = (u_char)(code >> 16);
188 c1 = C2I1(ctmp << 8);
189 c2 = C2I2(ctmp << 8);
193 code = dp->d_table[c1][c2];
199 nullin = (code & XLAT16_ACCEPT_NULL_IN) ? 1 : 0;
200 if (inlen == 1 && nullin) {
202 * XLAT16_ACCEPT_NULL_IN requires inbuf has 2byte
209 * now start translation
211 u = (u_char)(code >> 8);
214 #ifdef XLAT16_ACCEPT_3BYTE_CHR
215 if (code & XLAT16_IS_3BYTE_CHR) {
222 *dst++ = (u_char)(code >> 16);
226 if (u || code & XLAT16_ACCEPT_NULL_OUT) {
232 /* toupper,tolower */
233 if (casetype == KICONV_LOWER && dp->t_ctp) {
234 code = towlower((uint16_t)code, dp->t_ctp);
235 u = (u_char)(code >> 8);
238 if (casetype == KICONV_UPPER && dp->t_ctp) {
239 code = towupper((uint16_t)code, dp->t_ctp);
240 u = (u_char)(code >> 8);
248 /* toupper,tolower */
249 if (casetype == KICONV_LOWER) {
251 l = (u_char)towlower(l, dp->t_ctp);
252 else if (code & XLAT16_HAS_LOWER_CASE)
253 l = (u_char)(code >> 16);
255 if (casetype == KICONV_UPPER) {
257 l = (u_char)towupper(l, dp->t_ctp);
258 else if (code & XLAT16_HAS_UPPER_CASE)
259 l = (u_char)(code >> 16);
268 * there is a case that inbuf char is a single
269 * byte char while inlen == 2
271 if ((u_char)*(src+1) == 0 && !nullin ) {
289 *inbytesleft -= in - ir;
290 *outbytesleft -= on - or;
295 iconv_xlat16_name(struct iconv_converter_class *dcp)
301 iconv_xlat16_tolower(void *d2p, register int c)
303 struct iconv_xlat16 *dp = (struct iconv_xlat16*)d2p;
304 register int c1, c2, out;
309 } else if (c < 0x10000) {
315 if (dp->d_table[c1] && dp->d_table[c1][c2] & XLAT16_HAS_LOWER_CASE) {
316 /*return (int)(dp->d_table[c1][c2] & 0xffff);*/
317 out = dp->d_table[c1][c2] & 0xffff;
318 if ((out & 0xff) == 0)
319 out = (out >> 8) & 0xff;
326 iconv_xlat16_toupper(void *d2p, register int c)
328 struct iconv_xlat16 *dp = (struct iconv_xlat16*)d2p;
329 register int c1, c2, out;
334 } else if (c < 0x10000) {
340 if (dp->d_table[c1] && dp->d_table[c1][c2] & XLAT16_HAS_UPPER_CASE) {
341 out = dp->d_table[c1][c2] & 0xffff;
342 if ((out & 0xff) == 0)
343 out = (out >> 8) & 0xff;
349 static kobj_method_t iconv_xlat16_methods[] = {
350 KOBJMETHOD(iconv_converter_open, iconv_xlat16_open),
351 KOBJMETHOD(iconv_converter_close, iconv_xlat16_close),
352 KOBJMETHOD(iconv_converter_conv, iconv_xlat16_conv),
354 KOBJMETHOD(iconv_converter_init, iconv_xlat16_init),
355 KOBJMETHOD(iconv_converter_done, iconv_xlat16_done),
357 KOBJMETHOD(iconv_converter_name, iconv_xlat16_name),
358 KOBJMETHOD(iconv_converter_tolower, iconv_xlat16_tolower),
359 KOBJMETHOD(iconv_converter_toupper, iconv_xlat16_toupper),
363 KICONV_CONVERTER(xlat16, sizeof(struct iconv_xlat16));