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- /*
- Unix SMB/Netbios implementation.
- Version 1.9.
- Kanji Extensions
- Copyright (C) Andrew Tridgell 1992-1998
-
- This program is free software; you can redistribute it and/or modify
- it under the terms of the GNU General Public License as published by
- the Free Software Foundation; either version 2 of the License, or
- (at your option) any later version.
-
- This program is distributed in the hope that it will be useful,
- but WITHOUT ANY WARRANTY; without even the implied warranty of
- MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
- GNU General Public License for more details.
-
- You should have received a copy of the GNU General Public License
- along with this program; if not, write to the Free Software
- Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
-
- Adding for Japanese language by <fujita@ainix.isac.co.jp> 1994.9.5
- and extend coding system to EUC/SJIS/JIS/HEX at 1994.10.11
- and add all jis codes sequence type at 1995.8.16
- Notes: Hexadecimal code by <ohki@gssm.otuka.tsukuba.ac.jp>
- */
-
- #define _KANJI_C_
- #include "includes.h"
-
- /*
- * Function pointers that get overridden when multi-byte code pages
- * are loaded.
- */
-
- char *(*multibyte_strchr)(char *, int ) = (char *(*)(char *, int )) strchr;
- char *(*multibyte_strrchr)(char *, int ) = (char *(*)(char *, int )) strrchr;
- char *(*multibyte_strstr)(char *, char *) = (char *(*)(char *, char *)) strstr;
- char *(*multibyte_strtok)(char *, char *) = (char *(*)(char *, char *)) strtok;
-
- /*
- * Kanji is treated differently here due to historical accident of
- * it being the first non-English codepage added to Samba.
- * The define 'KANJI' is being overloaded to mean 'use kanji codepage
- * by default' and also 'this is the filename-to-disk conversion
- * method to use'. This really should be removed and all control
- * over this left in the smb.conf parameters 'client codepage'
- * and 'coding system'.
- */
-
- #ifndef KANJI
-
- /*
- * Set the default conversion to be the functions in
- * charcnv.c.
- */
-
- static int skip_non_multibyte_char(char);
- static BOOL not_multibyte_char_1(char);
-
- char *(*_dos_to_unix)(char *, BOOL) = dos2unix_format;
- char *(*_unix_to_dos)(char *, BOOL) = unix2dos_format;
- int (*_skip_multibyte_char)(char) = skip_non_multibyte_char;
- BOOL (*is_multibyte_char_1)(char) = not_multibyte_char_1;
-
- #else /* KANJI */
-
- /*
- * Set the default conversion to be the function
- * sj_to_sj in this file.
- */
-
- static char *sj_to_sj(char *from, BOOL overwrite);
- static int skip_kanji_multibyte_char(char);
- static BOOL is_kanji_multibyte_char_1(char);
-
- char *(*_dos_to_unix)(char *, BOOL) = sj_to_sj;
- char *(*_unix_to_dos)(char *, BOOL) = sj_to_sj;
- int (*_skip_multibyte_char)(char) = skip_kanji_multibyte_char;
- int (*is_multibyte_char_1)(char) = is_kanji_multibyte_char_1;
-
- #endif /* KANJI */
-
- /* jis si/so sequence */
- static char jis_kso = JIS_KSO;
- static char jis_ksi = JIS_KSI;
- static char hex_tag = HEXTAG;
-
- /*******************************************************************
- SHIFT JIS functions
- ********************************************************************/
- /*******************************************************************
- search token from S1 separated any char of S2
- S1 contains SHIFT JIS chars.
- ********************************************************************/
- static char *sj_strtok(char *s1, char *s2)
- {
- static char *s = NULL;
- char *q;
- if (!s1) {
- if (!s) {
- return NULL;
- }
- s1 = s;
- }
- for (q = s1; *s1; ) {
- if (is_shift_jis (*s1)) {
- s1 += 2;
- } else if (is_kana (*s1)) {
- s1++;
- } else {
- char *p = strchr (s2, *s1);
- if (p) {
- if (s1 != q) {
- s = s1 + 1;
- *s1 = '\0';
- return q;
- }
- q = s1 + 1;
- }
- s1++;
- }
- }
- s = NULL;
- if (*q) {
- return q;
- }
- return NULL;
- }
-
- /*******************************************************************
- search string S2 from S1
- S1 contains SHIFT JIS chars.
- ********************************************************************/
- static char *sj_strstr(char *s1, char *s2)
- {
- int len = strlen ((char *) s2);
- if (!*s2)
- return (char *) s1;
- for (;*s1;) {
- if (*s1 == *s2) {
- if (strncmp (s1, s2, len) == 0)
- return (char *) s1;
- }
- if (is_shift_jis (*s1)) {
- s1 += 2;
- } else {
- s1++;
- }
- }
- return 0;
- }
-
- /*******************************************************************
- Search char C from beginning of S.
- S contains SHIFT JIS chars.
- ********************************************************************/
- static char *sj_strchr (char *s, int c)
- {
- for (; *s; ) {
- if (*s == c)
- return (char *) s;
- if (is_shift_jis (*s)) {
- s += 2;
- } else {
- s++;
- }
- }
- return 0;
- }
-
- /*******************************************************************
- Search char C end of S.
- S contains SHIFT JIS chars.
- ********************************************************************/
- static char *sj_strrchr(char *s, int c)
- {
- char *q;
-
- for (q = 0; *s; ) {
- if (*s == c) {
- q = (char *) s;
- }
- if (is_shift_jis (*s)) {
- s += 2;
- } else {
- s++;
- }
- }
- return q;
- }
-
- /*******************************************************************
- Kanji multibyte char skip function.
- *******************************************************************/
-
- static int skip_kanji_multibyte_char(char c)
- {
- if(is_shift_jis(c)) {
- return 2;
- } else if (is_kana(c)) {
- return 1;
- }
- return 0;
- }
-
- /*******************************************************************
- Kanji multibyte char identification.
- *******************************************************************/
-
- static BOOL is_kanji_multibyte_char_1(char c)
- {
- return is_shift_jis(c);
- }
-
- /*******************************************************************
- The following functions are the only ones needed to do multibyte
- support for Hangul, Big5 and Simplified Chinese. Most of the
- real work for these codepages is done in the generic multibyte
- functions. The only reason these functions are needed at all
- is that the is_xxx(c) calls are really preprocessor macros.
- ********************************************************************/
-
- /*******************************************************************
- Hangul (Korean - code page 949) function.
- ********************************************************************/
-
- static BOOL hangul_is_multibyte_char_1(char c)
- {
- return is_hangul(c);
- }
-
- /*******************************************************************
- Big5 Traditional Chinese (code page 950) function.
- ********************************************************************/
-
- static BOOL big5_is_multibyte_char_1(char c)
- {
- return is_big5_c1(c);
- }
-
- /*******************************************************************
- Simplified Chinese (code page 936) function.
- ********************************************************************/
-
- static BOOL simpch_is_multibyte_char_1(char c)
- {
- return is_simpch_c1(c);
- }
-
- /*******************************************************************
- Generic multibyte functions - used by Hangul, Big5 and Simplified
- Chinese codepages.
- ********************************************************************/
-
- /*******************************************************************
- search token from S1 separated any char of S2
- S1 contains generic multibyte chars.
- ********************************************************************/
-
- static char *generic_multibyte_strtok(char *s1, char *s2)
- {
- static char *s = NULL;
- char *q;
- if (!s1) {
- if (!s) {
- return NULL;
- }
- s1 = s;
- }
- for (q = s1; *s1; ) {
- if ((*is_multibyte_char_1)(*s1)) {
- s1 += 2;
- } else {
- char *p = strchr (s2, *s1);
- if (p) {
- if (s1 != q) {
- s = s1 + 1;
- *s1 = '\0';
- return q;
- }
- q = s1 + 1;
- }
- s1++;
- }
- }
- s = NULL;
- if (*q) {
- return q;
- }
- return NULL;
- }
-
- /*******************************************************************
- search string S2 from S1
- S1 contains generic multibyte chars.
- ********************************************************************/
-
- static char *generic_multibyte_strstr(char *s1, char *s2)
- {
- int len = strlen ((char *) s2);
- if (!*s2)
- return (char *) s1;
- for (;*s1;) {
- if (*s1 == *s2) {
- if (strncmp (s1, s2, len) == 0)
- return (char *) s1;
- }
- if ((*is_multibyte_char_1)(*s1)) {
- s1 += 2;
- } else {
- s1++;
- }
- }
- return 0;
- }
-
- /*******************************************************************
- Search char C from beginning of S.
- S contains generic multibyte chars.
- ********************************************************************/
-
- static char *generic_multibyte_strchr(char *s, int c)
- {
- for (; *s; ) {
- if (*s == c)
- return (char *) s;
- if ((*is_multibyte_char_1)(*s)) {
- s += 2;
- } else {
- s++;
- }
- }
- return 0;
- }
-
- /*******************************************************************
- Search char C end of S.
- S contains generic multibyte chars.
- ********************************************************************/
-
- static char *generic_multibyte_strrchr(char *s, int c)
- {
- char *q;
-
- for (q = 0; *s; ) {
- if (*s == c) {
- q = (char *) s;
- }
- if ((*is_multibyte_char_1)(*s)) {
- s += 2;
- } else {
- s++;
- }
- }
- return q;
- }
-
- /*******************************************************************
- Generic multibyte char skip function.
- *******************************************************************/
-
- static int skip_generic_multibyte_char(char c)
- {
- if( (*is_multibyte_char_1)(c)) {
- return 2;
- }
- return 0;
- }
-
- /*******************************************************************
- Code conversion
- ********************************************************************/
- /* convesion buffer */
- static char cvtbuf[1024];
-
- /*******************************************************************
- EUC <-> SJIS
- ********************************************************************/
- static int euc2sjis (int hi, int lo)
- {
- if (hi & 1)
- return ((hi / 2 + (hi < 0xdf ? 0x31 : 0x71)) << 8) |
- (lo - (lo >= 0xe0 ? 0x60 : 0x61));
- else
- return ((hi / 2 + (hi < 0xdf ? 0x30 : 0x70)) << 8) | (lo - 2);
- }
-
- static int sjis2euc (int hi, int lo)
- {
- if (lo >= 0x9f)
- return ((hi * 2 - (hi >= 0xe0 ? 0xe0 : 0x60)) << 8) | (lo + 2);
- else
- return ((hi * 2 - (hi >= 0xe0 ? 0xe1 : 0x61)) << 8) |
- (lo + (lo >= 0x7f ? 0x60 : 0x61));
- }
-
- /*******************************************************************
- Convert FROM contain SHIFT JIS codes to EUC codes
- return converted buffer
- ********************************************************************/
- static char *sj_to_euc(char *from, BOOL overwrite)
- {
- char *out;
- char *save;
-
- save = (char *) from;
- for (out = cvtbuf; *from;) {
- if (is_shift_jis (*from)) {
- int code = sjis2euc ((int) from[0] & 0xff, (int) from[1] & 0xff);
- *out++ = (code >> 8) & 0xff;
- *out++ = code;
- from += 2;
- } else if (is_kana (*from)) {
- *out++ = (char)euc_kana;
- *out++ = *from++;
- } else {
- *out++ = *from++;
- }
- }
- *out = 0;
- if (overwrite) {
- pstrcpy((char *) save, (char *) cvtbuf);
- return (char *) save;
- } else {
- return cvtbuf;
- }
- }
-
- /*******************************************************************
- Convert FROM contain EUC codes to SHIFT JIS codes
- return converted buffer
- ********************************************************************/
- static char *euc_to_sj(char *from, BOOL overwrite)
- {
- char *out;
- char *save;
-
- save = (char *) from;
- for (out = cvtbuf; *from; ) {
- if (is_euc (*from)) {
- int code = euc2sjis ((int) from[0] & 0xff, (int) from[1] & 0xff);
- *out++ = (code >> 8) & 0xff;
- *out++ = code;
- from += 2;
- } else if (is_euc_kana (*from)) {
- *out++ = from[1];
- from += 2;
- } else {
- *out++ = *from++;
- }
- }
- *out = 0;
- if (overwrite) {
- pstrcpy(save, (char *) cvtbuf);
- return save;
- } else {
- return cvtbuf;
- }
- }
-
- /*******************************************************************
- JIS7,JIS8,JUNET <-> SJIS
- ********************************************************************/
- static int sjis2jis(int hi, int lo)
- {
- if (lo >= 0x9f)
- return ((hi * 2 - (hi >= 0xe0 ? 0x160 : 0xe0)) << 8) | (lo - 0x7e);
- else
- return ((hi * 2 - (hi >= 0xe0 ? 0x161 : 0xe1)) << 8) |
- (lo - (lo >= 0x7f ? 0x20 : 0x1f));
- }
-
- static int jis2sjis(int hi, int lo)
- {
- if (hi & 1)
- return ((hi / 2 + (hi < 0x5f ? 0x71 : 0xb1)) << 8) |
- (lo + (lo >= 0x60 ? 0x20 : 0x1f));
- else
- return ((hi / 2 + (hi < 0x5f ? 0x70 : 0xb0)) << 8) | (lo + 0x7e);
- }
-
- /*******************************************************************
- Convert FROM contain JIS codes to SHIFT JIS codes
- return converted buffer
- ********************************************************************/
- static char *jis8_to_sj(char *from, BOOL overwrite)
- {
- char *out;
- int shifted;
- char *save;
-
- shifted = _KJ_ROMAN;
- save = (char *) from;
- for (out = cvtbuf; *from;) {
- if (is_esc (*from)) {
- if (is_so1 (from[1]) && is_so2 (from[2])) {
- shifted = _KJ_KANJI;
- from += 3;
- } else if (is_si1 (from[1]) && is_si2 (from[2])) {
- shifted = _KJ_ROMAN;
- from += 3;
- } else { /* sequence error */
- goto normal;
- }
- } else {
- normal:
- switch (shifted) {
- default:
- case _KJ_ROMAN:
- *out++ = *from++;
- break;
- case _KJ_KANJI:
- {
- int code = jis2sjis ((int) from[0] & 0xff, (int) from[1] & 0xff);
- *out++ = (code >> 8) & 0xff;
- *out++ = code;
- from += 2;
- }
- break;
- }
- }
- }
- *out = 0;
- if (overwrite) {
- pstrcpy (save, (char *) cvtbuf);
- return save;
- } else {
- return cvtbuf;
- }
- }
-
- /*******************************************************************
- Convert FROM contain SHIFT JIS codes to JIS codes
- return converted buffer
- ********************************************************************/
- static char *sj_to_jis8(char *from, BOOL overwrite)
- {
- char *out;
- int shifted;
- char *save;
-
- shifted = _KJ_ROMAN;
- save = (char *) from;
- for (out = cvtbuf; *from; ) {
- if (is_shift_jis (*from)) {
- int code;
- switch (shifted) {
- case _KJ_ROMAN: /* to KANJI */
- *out++ = jis_esc;
- *out++ = jis_so1;
- *out++ = jis_kso;
- shifted = _KJ_KANJI;
- break;
- }
- code = sjis2jis ((int) from[0] & 0xff, (int) from[1] & 0xff);
- *out++ = (code >> 8) & 0xff;
- *out++ = code;
- from += 2;
- } else {
- switch (shifted) {
- case _KJ_KANJI: /* to ROMAN/KANA */
- *out++ = jis_esc;
- *out++ = jis_si1;
- *out++ = jis_ksi;
- shifted = _KJ_ROMAN;
- break;
- }
- *out++ = *from++;
- }
- }
- switch (shifted) {
- case _KJ_KANJI: /* to ROMAN/KANA */
- *out++ = jis_esc;
- *out++ = jis_si1;
- *out++ = jis_ksi;
- shifted = _KJ_ROMAN;
- break;
- }
- *out = 0;
- if (overwrite) {
- pstrcpy (save, (char *) cvtbuf);
- return save;
- } else {
- return cvtbuf;
- }
- }
-
- /*******************************************************************
- Convert FROM contain 7 bits JIS codes to SHIFT JIS codes
- return converted buffer
- ********************************************************************/
- static char *jis7_to_sj(char *from, BOOL overwrite)
- {
- char *out;
- int shifted;
- char *save;
-
- shifted = _KJ_ROMAN;
- save = (char *) from;
- for (out = cvtbuf; *from;) {
- if (is_esc (*from)) {
- if (is_so1 (from[1]) && is_so2 (from[2])) {
- shifted = _KJ_KANJI;
- from += 3;
- } else if (is_si1 (from[1]) && is_si2 (from[2])) {
- shifted = _KJ_ROMAN;
- from += 3;
- } else { /* sequence error */
- goto normal;
- }
- } else if (is_so (*from)) {
- shifted = _KJ_KANA; /* to KANA */
- from++;
- } else if (is_si (*from)) {
- shifted = _KJ_ROMAN; /* to ROMAN */
- from++;
- } else {
- normal:
- switch (shifted) {
- default:
- case _KJ_ROMAN:
- *out++ = *from++;
- break;
- case _KJ_KANJI:
- {
- int code = jis2sjis ((int) from[0] & 0xff, (int) from[1] & 0xff);
- *out++ = (code >> 8) & 0xff;
- *out++ = code;
- from += 2;
- }
- break;
- case _KJ_KANA:
- *out++ = ((int) from[0]) + 0x80;
- break;
- }
- }
- }
- *out = 0;
- if (overwrite) {
- pstrcpy (save, (char *) cvtbuf);
- return save;
- } else {
- return cvtbuf;
- }
- }
-
- /*******************************************************************
- Convert FROM contain SHIFT JIS codes to 7 bits JIS codes
- return converted buffer
- ********************************************************************/
- static char *sj_to_jis7(char *from, BOOL overwrite)
- {
- char *out;
- int shifted;
- char *save;
-
- shifted = _KJ_ROMAN;
- save = (char *) from;
- for (out = cvtbuf; *from; ) {
- if (is_shift_jis (*from)) {
- int code;
- switch (shifted) {
- case _KJ_KANA:
- *out++ = jis_si; /* to ROMAN and through down */
- case _KJ_ROMAN: /* to KANJI */
- *out++ = jis_esc;
- *out++ = jis_so1;
- *out++ = jis_kso;
- shifted = _KJ_KANJI;
- break;
- }
- code = sjis2jis ((int) from[0] & 0xff, (int) from[1] & 0xff);
- *out++ = (code >> 8) & 0xff;
- *out++ = code;
- from += 2;
- } else if (is_kana (from[0])) {
- switch (shifted) {
- case _KJ_KANJI: /* to ROMAN */
- *out++ = jis_esc;
- *out++ = jis_si1;
- *out++ = jis_ksi;
- case _KJ_ROMAN: /* to KANA */
- *out++ = jis_so;
- shifted = _KJ_KANA;
- break;
- }
- *out++ = ((int) *from++) - 0x80;
- } else {
- switch (shifted) {
- case _KJ_KANA:
- *out++ = jis_si; /* to ROMAN */
- shifted = _KJ_ROMAN;
- break;
- case _KJ_KANJI: /* to ROMAN */
- *out++ = jis_esc;
- *out++ = jis_si1;
- *out++ = jis_ksi;
- shifted = _KJ_ROMAN;
- break;
- }
- *out++ = *from++;
- }
- }
- switch (shifted) {
- case _KJ_KANA:
- *out++ = jis_si; /* to ROMAN */
- break;
- case _KJ_KANJI: /* to ROMAN */
- *out++ = jis_esc;
- *out++ = jis_si1;
- *out++ = jis_ksi;
- break;
- }
- *out = 0;
- if (overwrite) {
- pstrcpy (save, (char *) cvtbuf);
- return save;
- } else {
- return cvtbuf;
- }
- }
-
- /*******************************************************************
- Convert FROM contain 7 bits JIS(junet) codes to SHIFT JIS codes
- return converted buffer
- ********************************************************************/
- static char *junet_to_sj(char *from, BOOL overwrite)
- {
- char *out;
- int shifted;
- char *save;
-
- shifted = _KJ_ROMAN;
- save = (char *) from;
- for (out = cvtbuf; *from;) {
- if (is_esc (*from)) {
- if (is_so1 (from[1]) && is_so2 (from[2])) {
- shifted = _KJ_KANJI;
- from += 3;
- } else if (is_si1 (from[1]) && is_si2 (from[2])) {
- shifted = _KJ_ROMAN;
- from += 3;
- } else if (is_juk1(from[1]) && is_juk2 (from[2])) {
- shifted = _KJ_KANA;
- from += 3;
- } else { /* sequence error */
- goto normal;
- }
- } else {
- normal:
- switch (shifted) {
- default:
- case _KJ_ROMAN:
- *out++ = *from++;
- break;
- case _KJ_KANJI:
- {
- int code = jis2sjis ((int) from[0] & 0xff, (int) from[1] & 0xff);
- *out++ = (code >> 8) & 0xff;
- *out++ = code;
- from += 2;
- }
- break;
- case _KJ_KANA:
- *out++ = ((int) from[0]) + 0x80;
- break;
- }
- }
- }
- *out = 0;
- if (overwrite) {
- pstrcpy (save, (char *) cvtbuf);
- return save;
- } else {
- return cvtbuf;
- }
- }
-
- /*******************************************************************
- Convert FROM contain SHIFT JIS codes to 7 bits JIS(junet) codes
- return converted buffer
- ********************************************************************/
- static char *sj_to_junet(char *from, BOOL overwrite)
- {
- char *out;
- int shifted;
- char *save;
-
- shifted = _KJ_ROMAN;
- save = (char *) from;
- for (out = cvtbuf; *from; ) {
- if (is_shift_jis (*from)) {
- int code;
- switch (shifted) {
- case _KJ_KANA:
- case _KJ_ROMAN: /* to KANJI */
- *out++ = jis_esc;
- *out++ = jis_so1;
- *out++ = jis_so2;
- shifted = _KJ_KANJI;
- break;
- }
- code = sjis2jis ((int) from[0] & 0xff, (int) from[1] & 0xff);
- *out++ = (code >> 8) & 0xff;
- *out++ = code;
- from += 2;
- } else if (is_kana (from[0])) {
- switch (shifted) {
- case _KJ_KANJI: /* to ROMAN */
- case _KJ_ROMAN: /* to KANA */
- *out++ = jis_esc;
- *out++ = junet_kana1;
- *out++ = junet_kana2;
- shifted = _KJ_KANA;
- break;
- }
- *out++ = ((int) *from++) - 0x80;
- } else {
- switch (shifted) {
- case _KJ_KANA:
- case _KJ_KANJI: /* to ROMAN */
- *out++ = jis_esc;
- *out++ = jis_si1;
- *out++ = jis_si2;
- shifted = _KJ_ROMAN;
- break;
- }
- *out++ = *from++;
- }
- }
- switch (shifted) {
- case _KJ_KANA:
- case _KJ_KANJI: /* to ROMAN */
- *out++ = jis_esc;
- *out++ = jis_si1;
- *out++ = jis_si2;
- break;
- }
- *out = 0;
- if (overwrite) {
- pstrcpy (save, (char *) cvtbuf);
- return save;
- } else {
- return cvtbuf;
- }
- }
-
- /*******************************************************************
- HEX <-> SJIS
- ********************************************************************/
- /* ":xx" -> a byte */
- static char *hex_to_sj(char *from, BOOL overwrite)
- {
- char *sp, *dp;
-
- sp = (char *) from;
- dp = cvtbuf;
- while (*sp) {
- if (*sp == hex_tag && isxdigit (sp[1]) && isxdigit (sp[2])) {
- *dp++ = (hex2bin (sp[1])<<4) | (hex2bin (sp[2]));
- sp += 3;
- } else
- *dp++ = *sp++;
- }
- *dp = '\0';
- if (overwrite) {
- pstrcpy ((char *) from, (char *) cvtbuf);
- return (char *) from;
- } else {
- return cvtbuf;
- }
- }
-
- /*******************************************************************
- kanji/kana -> ":xx"
- ********************************************************************/
- static char *sj_to_hex(char *from, BOOL overwrite)
- {
- unsigned char *sp, *dp;
-
- sp = (unsigned char*) from;
- dp = (unsigned char*) cvtbuf;
- while (*sp) {
- if (is_kana(*sp)) {
- *dp++ = hex_tag;
- *dp++ = bin2hex (((*sp)>>4)&0x0f);
- *dp++ = bin2hex ((*sp)&0x0f);
- sp++;
- } else if (is_shift_jis (*sp) && is_shift_jis2 (sp[1])) {
- *dp++ = hex_tag;
- *dp++ = bin2hex (((*sp)>>4)&0x0f);
- *dp++ = bin2hex ((*sp)&0x0f);
- sp++;
- *dp++ = hex_tag;
- *dp++ = bin2hex (((*sp)>>4)&0x0f);
- *dp++ = bin2hex ((*sp)&0x0f);
- sp++;
- } else
- *dp++ = *sp++;
- }
- *dp = '\0';
- if (overwrite) {
- pstrcpy ((char *) from, (char *) cvtbuf);
- return (char *) from;
- } else {
- return cvtbuf;
- }
- }
-
- /*******************************************************************
- CAP <-> SJIS
- ********************************************************************/
- /* ":xx" CAP -> a byte */
- static char *cap_to_sj(char *from, BOOL overwrite)
- {
- char *sp, *dp;
-
- sp = (char *) from;
- dp = cvtbuf;
- while (*sp) {
- /*
- * The only change between this and hex_to_sj is here. sj_to_cap only
- * translates characters greater or equal to 0x80 - make sure that here
- * we only do the reverse (that's why the strchr is used rather than
- * isxdigit. Based on fix from ado@elsie.nci.nih.gov (Arthur David Olson).
- */
- if (*sp == hex_tag && (strchr ("89abcdefABCDEF", sp[1]) != NULL) && isxdigit (sp[2])) {
- *dp++ = (hex2bin (sp[1])<<4) | (hex2bin (sp[2]));
- sp += 3;
- } else
- *dp++ = *sp++;
- }
- *dp = '\0';
- if (overwrite) {
- pstrcpy ((char *) from, (char *) cvtbuf);
- return (char *) from;
- } else {
- return cvtbuf;
- }
- }
-
- /*******************************************************************
- kanji/kana -> ":xx" - CAP format.
- ********************************************************************/
- static char *sj_to_cap(char *from, BOOL overwrite)
- {
- unsigned char *sp, *dp;
-
- sp = (unsigned char*) from;
- dp = (unsigned char*) cvtbuf;
- while (*sp) {
- if (*sp >= 0x80) {
- *dp++ = hex_tag;
- *dp++ = bin2hex (((*sp)>>4)&0x0f);
- *dp++ = bin2hex ((*sp)&0x0f);
- sp++;
- } else {
- *dp++ = *sp++;
- }
- }
- *dp = '\0';
- if (overwrite) {
- pstrcpy ((char *) from, (char *) cvtbuf);
- return (char *) from;
- } else {
- return cvtbuf;
- }
- }
-
- /*******************************************************************
- sj to sj
- ********************************************************************/
- static char *sj_to_sj(char *from, BOOL overwrite)
- {
- if (!overwrite) {
- pstrcpy (cvtbuf, (char *) from);
- return cvtbuf;
- } else {
- return (char *) from;
- }
- }
-
- /************************************************************************
- conversion:
- _dos_to_unix _unix_to_dos
- ************************************************************************/
-
- static void setup_string_function(int codes)
- {
- switch (codes) {
- default:
- _dos_to_unix = dos2unix_format;
- _unix_to_dos = unix2dos_format;
- break;
-
- case SJIS_CODE:
- _dos_to_unix = sj_to_sj;
- _unix_to_dos = sj_to_sj;
- break;
-
- case EUC_CODE:
- _dos_to_unix = sj_to_euc;
- _unix_to_dos = euc_to_sj;
- break;
-
- case JIS7_CODE:
- _dos_to_unix = sj_to_jis7;
- _unix_to_dos = jis7_to_sj;
- break;
-
- case JIS8_CODE:
- _dos_to_unix = sj_to_jis8;
- _unix_to_dos = jis8_to_sj;
- break;
-
- case JUNET_CODE:
- _dos_to_unix = sj_to_junet;
- _unix_to_dos = junet_to_sj;
- break;
-
- case HEX_CODE:
- _dos_to_unix = sj_to_hex;
- _unix_to_dos = hex_to_sj;
- break;
-
- case CAP_CODE:
- _dos_to_unix = sj_to_cap;
- _unix_to_dos = cap_to_sj;
- break;
- }
- }
-
- /************************************************************************
- Interpret coding system.
- ************************************************************************/
-
- void interpret_coding_system(char *str)
- {
- int codes = UNKNOWN_CODE;
-
- if (strequal (str, "sjis")) {
- codes = SJIS_CODE;
- } else if (strequal (str, "euc")) {
- codes = EUC_CODE;
- } else if (strequal (str, "cap")) {
- codes = CAP_CODE;
- hex_tag = HEXTAG;
- } else if (strequal (str, "hex")) {
- codes = HEX_CODE;
- hex_tag = HEXTAG;
- } else if (!strncasecmp (str, "hex", 3)) {
- codes = HEX_CODE;
- hex_tag = (str[3] ? str[3] : HEXTAG);
- } else if (strequal (str, "j8bb")) {
- codes = JIS8_CODE;
- jis_kso = 'B';
- jis_ksi = 'B';
- } else if (strequal (str, "j8bj") || strequal (str, "jis8")) {
- codes = JIS8_CODE;
- jis_kso = 'B';
- jis_ksi = 'J';
- } else if (strequal (str, "j8bh")) {
- codes = JIS8_CODE;
- jis_kso = 'B';
- jis_ksi = 'H';
- } else if (strequal (str, "j8@b")) {
- codes = JIS8_CODE;
- jis_kso = '@';
- jis_ksi = 'B';
- } else if (strequal (str, "j8@j")) {
- codes = JIS8_CODE;
- jis_kso = '@';
- jis_ksi = 'J';
- } else if (strequal (str, "j8@h")) {
- codes = JIS8_CODE;
- jis_kso = '@';
- jis_ksi = 'H';
- } else if (strequal (str, "j7bb")) {
- codes = JIS7_CODE;
- jis_kso = 'B';
- jis_ksi = 'B';
- } else if (strequal (str, "j7bj") || strequal (str, "jis7")) {
- codes = JIS7_CODE;
- jis_kso = 'B';
- jis_ksi = 'J';
- } else if (strequal (str, "j7bh")) {
- codes = JIS7_CODE;
- jis_kso = 'B';
- jis_ksi = 'H';
- } else if (strequal (str, "j7@b")) {
- codes = JIS7_CODE;
- jis_kso = '@';
- jis_ksi = 'B';
- } else if (strequal (str, "j7@j")) {
- codes = JIS7_CODE;
- jis_kso = '@';
- jis_ksi = 'J';
- } else if (strequal (str, "j7@h")) {
- codes = JIS7_CODE;
- jis_kso = '@';
- jis_ksi = 'H';
- } else if (strequal (str, "jubb")) {
- codes = JUNET_CODE;
- jis_kso = 'B';
- jis_ksi = 'B';
- } else if (strequal (str, "jubj") || strequal (str, "junet")) {
- codes = JUNET_CODE;
- jis_kso = 'B';
- jis_ksi = 'J';
- } else if (strequal (str, "jubh")) {
- codes = JUNET_CODE;
- jis_kso = 'B';
- jis_ksi = 'H';
- } else if (strequal (str, "ju@b")) {
- codes = JUNET_CODE;
- jis_kso = '@';
- jis_ksi = 'B';
- } else if (strequal (str, "ju@j")) {
- codes = JUNET_CODE;
- jis_kso = '@';
- jis_ksi = 'J';
- } else if (strequal (str, "ju@h")) {
- codes = JUNET_CODE;
- jis_kso = '@';
- jis_ksi = 'H';
- }
- setup_string_function (codes);
- }
-
- /*******************************************************************
- Non multibyte char function.
- *******************************************************************/
-
- static int skip_non_multibyte_char(char c)
- {
- return 0;
- }
-
- /*******************************************************************
- Function that always says a character isn't multibyte.
- *******************************************************************/
-
- static BOOL not_multibyte_char_1(char c)
- {
- return False;
- }
-
- /*******************************************************************
- Setup the function pointers for the functions that are replaced
- when multi-byte codepages are used.
-
- The dos_to_unix and unix_to_dos function pointers are only
- replaced by setup_string_function called by interpret_coding_system
- above.
- *******************************************************************/
-
- void initialize_multibyte_vectors( int client_codepage)
- {
- switch( client_codepage )
- {
- case KANJI_CODEPAGE:
- multibyte_strchr = (char *(*)(char *, int )) sj_strchr;
- multibyte_strrchr = (char *(*)(char *, int )) sj_strrchr;
- multibyte_strstr = (char *(*)(char *, char *)) sj_strstr;
- multibyte_strtok = (char *(*)(char *, char *)) sj_strtok;
- _skip_multibyte_char = skip_kanji_multibyte_char;
- is_multibyte_char_1 = is_kanji_multibyte_char_1;
- break;
- case HANGUL_CODEPAGE:
- multibyte_strchr = (char *(*)(char *, int )) generic_multibyte_strchr;
- multibyte_strrchr = (char *(*)(char *, int )) generic_multibyte_strrchr;
- multibyte_strstr = (char *(*)(char *, char *)) generic_multibyte_strstr;
- multibyte_strtok = (char *(*)(char *, char *)) generic_multibyte_strtok;
- _skip_multibyte_char = skip_generic_multibyte_char;
- is_multibyte_char_1 = hangul_is_multibyte_char_1;
- case BIG5_CODEPAGE:
- multibyte_strchr = (char *(*)(char *, int )) generic_multibyte_strchr;
- multibyte_strrchr = (char *(*)(char *, int )) generic_multibyte_strrchr;
- multibyte_strstr = (char *(*)(char *, char *)) generic_multibyte_strstr;
- multibyte_strtok = (char *(*)(char *, char *)) generic_multibyte_strtok;
- _skip_multibyte_char = skip_generic_multibyte_char;
- is_multibyte_char_1 = big5_is_multibyte_char_1;
- case SIMPLIFIED_CHINESE_CODEPAGE:
- multibyte_strchr = (char *(*)(char *, int )) generic_multibyte_strchr;
- multibyte_strrchr = (char *(*)(char *, int )) generic_multibyte_strrchr;
- multibyte_strstr = (char *(*)(char *, char *)) generic_multibyte_strstr;
- multibyte_strtok = (char *(*)(char *, char *)) generic_multibyte_strtok;
- _skip_multibyte_char = skip_generic_multibyte_char;
- is_multibyte_char_1 = simpch_is_multibyte_char_1;
- break;
- /*
- * Single char size code page.
- */
- default:
- multibyte_strchr = (char *(*)(char *, int )) strchr;
- multibyte_strrchr = (char *(*)(char *, int )) strrchr;
- multibyte_strstr = (char *(*)(char *, char *)) strstr;
- multibyte_strtok = (char *(*)(char *, char *)) strtok;
- _skip_multibyte_char = skip_non_multibyte_char;
- is_multibyte_char_1 = not_multibyte_char_1;
- break;
- }
- }
-