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
30 * kiconv(3) requires shared linked, and reduce module size
31 * when statically linked.
36 #include <sys/types.h>
37 #include <sys/iconv.h>
38 #include <sys/sysctl.h>
52 typedef void *iconv_t;
55 uint32_t * idx[0x200];
60 static struct xlat16_table kiconv_xlat16_open(const char *, const char *, int);
61 static int chklocale(int, const char *);
63 static int my_iconv_init(void);
64 static iconv_t (*my_iconv_open)(const char *, const char *);
65 static size_t (*my_iconv)(iconv_t, const char **, size_t *, char **, size_t *);
66 static int (*my_iconv_close)(iconv_t);
67 static size_t my_iconv_char(iconv_t, const u_char **, size_t *, u_char **, size_t *);
70 kiconv_add_xlat16_cspair(const char *tocode, const char *fromcode, int flag)
74 struct xlat16_table xt;
78 if (kiconv_lookupcs(tocode, fromcode) == 0)
81 if (flag & KICONV_WCTYPE)
82 xt = kiconv_xlat16_open(fromcode, fromcode, flag);
84 xt = kiconv_xlat16_open(tocode, fromcode, flag);
88 idxsize = sizeof(xt.idx);
90 if ((idxsize + xt.size) > ICONV_CSMAXDATALEN) {
95 if ((data = malloc(idxsize + xt.size)) != NULL) {
97 memcpy(p, xt.idx, idxsize);
99 memcpy(p, xt.data, xt.size);
100 error = kiconv_add_xlat16_table(tocode, fromcode, data,
101 (int)(idxsize + xt.size));
109 kiconv_add_xlat16_cspairs(const char *foreigncode, const char *localcode)
113 error = kiconv_add_xlat16_cspair(foreigncode, localcode,
114 KICONV_FROM_LOWER | KICONV_FROM_UPPER);
117 error = kiconv_add_xlat16_cspair(localcode, foreigncode,
118 KICONV_LOWER | KICONV_UPPER);
121 locale = chklocale(LC_CTYPE, localcode);
123 error = kiconv_add_xlat16_cspair(KICONV_WCTYPE_NAME, localcode,
132 static struct xlat16_table
133 kiconv_xlat16_open(const char *tocode, const char *fromcode, int lcase)
135 u_char src[3], dst[4], *srcp, *dstp, ud, ld;
138 uint32_t table[0x80];
139 size_t inbytesleft, outbytesleft, pre_q_size, post_q_size;
140 struct xlat16_table xt;
141 struct quirk_replace_list *pre_q_list, *post_q_list;
151 ret = my_iconv_init();
155 cd = my_iconv_open(search_quirk(tocode, fromcode, &pre_q_list, &pre_q_size),
156 search_quirk(fromcode, tocode, &post_q_list, &post_q_size));
157 if (cd == (iconv_t) (-1))
160 if ((xt.data = malloc(0x200 * 0x80 * sizeof(uint32_t))) == NULL)
165 for (ls = 0 ; ls < 0x200 ; ls++) {
167 for (us = 0 ; us < 0x80 ; us++) {
173 bzero(dst, outbytesleft);
175 c = ((ls & 0x100 ? us | 0x80 : us) << 8) | (u_char)ls;
177 if (lcase & KICONV_WCTYPE) {
182 if ((c & 0xff00) == 0)
184 table[us] = c | XLAT16_HAS_LOWER_CASE;
185 } else if (iswlower(c)) {
187 if ((c & 0xff00) == 0)
189 table[us] = c | XLAT16_HAS_UPPER_CASE;
201 c = quirk_vendor2unix(c, pre_q_list, pre_q_size);
202 src[0] = (u_char)(c >> 8);
205 ret = my_iconv_char(cd, (const u_char **)&srcp,
206 &inbytesleft, &dstp, &outbytesleft);
215 switch(outbytesleft) {
217 #ifdef XLAT16_ACCEPT_3BYTE_CHR
218 table[us] = (ud << 8) | ld;
219 table[us] |= (u_char)dst[2] << 16;
220 table[us] |= XLAT16_IS_3BYTE_CHR;
227 table[us] = quirk_unix2vendor((ud << 8) | ld,
228 post_q_list, post_q_size);
229 if ((table[us] >> 8) == 0)
230 table[us] |= XLAT16_ACCEPT_NULL_OUT;
234 if (lcase & KICONV_LOWER && ud != tolower(ud)) {
235 table[us] |= (u_char)tolower(ud) << 16;
236 table[us] |= XLAT16_HAS_LOWER_CASE;
238 if (lcase & KICONV_UPPER && ud != toupper(ud)) {
239 table[us] |= (u_char)toupper(ud) << 16;
240 table[us] |= XLAT16_HAS_UPPER_CASE;
245 switch(inbytesleft) {
247 if ((ls & 0xff) == 0)
248 table[us] |= XLAT16_ACCEPT_NULL_IN;
251 c = ls > 0xff ? us | 0x80 : us;
252 if (lcase & KICONV_FROM_LOWER && c != tolower(c)) {
253 table[us] |= (u_char)tolower(c) << 16;
254 table[us] |= XLAT16_HAS_FROM_LOWER_CASE;
256 if (lcase & KICONV_FROM_UPPER && c != toupper(c)) {
257 table[us] |= (u_char)toupper(c) << 16;
258 table[us] |= XLAT16_HAS_FROM_UPPER_CASE;
272 memcpy(p, table, sizeof(table));
278 xt.size = p - (char *)xt.data;
279 xt.data = realloc(xt.data, xt.size);
284 chklocale(int category, const char *code)
289 p = strchr(setlocale(category, NULL), '.');
291 error = strcasecmp(code, p);
293 /* XXX - can't avoid calling quirk here... */
294 error = strcasecmp(code, kiconv_quirkcs(p,
295 KICONV_VENDOR_MICSFT));
306 iconv_lib = dlopen("libiconv.so", RTLD_LAZY | RTLD_GLOBAL);
307 if (iconv_lib == NULL) {
308 warn("Unable to load iconv library: %s\n", dlerror());
312 my_iconv_open = dlsym(iconv_lib, "iconv_open");
313 my_iconv = dlsym(iconv_lib, "iconv");
314 my_iconv_close = dlsym(iconv_lib, "iconv_close");
320 my_iconv_char(iconv_t cd, const u_char **ibuf, size_t * ilen, u_char **obuf,
324 u_char *dp, ilocal[3], olocal[3];
334 ret = my_iconv(cd, (const char **)&sp, ilen, (char **)&dp, olen);
339 if (*ilen == ir - 1 && (*ibuf)[1] == '\0' && (c1 || c2))
346 * We must judge if inbuf is a single byte char or double byte char.
347 * Here, to judge, try first byte(*sp) conversion and compare.
353 memcpy(ilocal, *ibuf, sizeof(ilocal));
357 if ((my_iconv(cd,(const char **)&sp, &ir, (char **)&dp, &or)) != -1) {
361 if (olocal[1] == c2 && (*ibuf)[1] == '\0') {
363 * inbuf is a single byte char
373 if (olocal[1] == c2) {
375 * inbuf is a single byte char,
376 * so return false here.
381 * inbuf is a double byte char
388 * should compare second byte of inbuf
394 * inbuf clould not be splitted, so inbuf is
395 * a double byte char.
401 * try second byte(*(sp+1)) conversion, and compare
411 if ((my_iconv(cd,(const char **)&sp, &ir, (char **)&dp, &or)) != -1) {
414 * inbuf is a single byte char
422 #else /* statically linked */
424 #include <sys/types.h>
425 #include <sys/iconv.h>
429 kiconv_add_xlat16_cspair(const char *tocode __unused, const char *fromcode __unused,
438 kiconv_add_xlat16_cspairs(const char *tocode __unused, const char *fromcode __unused)