/* encoding.c - character encoding Copyright (C) 2008 siliconforks.com 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA. */ #include #include "encoding.h" #include #include #include #ifdef HAVE_ICONV_H #include #elif defined HAVE_WINDOWS_H #include #endif #include "util.h" static void skip_bom(jschar ** characters, size_t * num_characters) { jschar * c = *characters; size_t nc = *num_characters; size_t i; for (i = 0; i < nc; i++) { if (c[i] != 0xfeff) { break; } } if (i == 0) { return; } nc -= i; jschar * old = c; c = xnew(jschar, nc); memcpy(c, old + i, nc * sizeof(jschar)); free(old); *characters = c; *num_characters = nc; } #ifdef HAVE_ICONV #ifdef WORDS_BIGENDIAN #define UTF_16_INTERNAL "UTF-16BE" #else #define UTF_16_INTERNAL "UTF-16LE" #endif int jscoverage_bytes_to_characters(const char * encoding, const uint8_t * bytes, size_t num_bytes, jschar ** characters, size_t * num_characters) { assert(encoding != NULL); iconv_t state = iconv_open(UTF_16_INTERNAL, encoding); if (state == (iconv_t) -1) { return JSCOVERAGE_ERROR_ENCODING_NOT_SUPPORTED; } ICONV_CONST char * input = (char *) bytes; size_t input_bytes_left = num_bytes; jschar * c = xnew(jschar, num_bytes); char * output = (char *) c; size_t output_bytes_left = sizeof(jschar) * num_bytes; size_t result = iconv(state, &input, &input_bytes_left, &output, &output_bytes_left); iconv_close(state); if (result == (size_t) -1) { free(c); return JSCOVERAGE_ERROR_INVALID_BYTE_SEQUENCE; } assert(input_bytes_left == 0); size_t nc = ((jschar *) output) - c; skip_bom(&c, &nc); *characters = c; *num_characters = nc; return 0; } #elif HAVE_MULTIBYTETOWIDECHAR /* http://msdn.microsoft.com/en-us/library/ms776446(VS.85).aspx */ static struct CodePage { UINT value; LPCSTR string; } code_pages[] = { {37, "IBM037"}, /* IBM EBCDIC US-Canada */ {437, "IBM437"}, /* OEM United States */ {500, "IBM500"}, /* IBM EBCDIC International */ {708, "ASMO-708"}, /* Arabic (ASMO 708) */ {720, "DOS-720"}, /* Arabic (Transparent ASMO); Arabic (DOS) */ {737, "ibm737"}, /* OEM Greek (formerly 437G); Greek (DOS) */ {775, "ibm775"}, /* OEM Baltic; Baltic (DOS) */ {850, "ibm850"}, /* OEM Multilingual Latin 1; Western European (DOS) */ {852, "ibm852"}, /* OEM Latin 2; Central European (DOS) */ {855, "IBM855"}, /* OEM Cyrillic (primarily Russian) */ {857, "ibm857"}, /* OEM Turkish; Turkish (DOS) */ {858, "IBM00858"}, /* OEM Multilingual Latin 1 + Euro symbol */ {860, "IBM860"}, /* OEM Portuguese; Portuguese (DOS) */ {861, "ibm861"}, /* OEM Icelandic; Icelandic (DOS) */ {862, "DOS-862"}, /* OEM Hebrew; Hebrew (DOS) */ {863, "IBM863"}, /* OEM French Canadian; French Canadian (DOS) */ {864, "IBM864"}, /* OEM Arabic; Arabic (864) */ {865, "IBM865"}, /* OEM Nordic; Nordic (DOS) */ {866, "cp866"}, /* OEM Russian; Cyrillic (DOS) */ {869, "ibm869"}, /* OEM Modern Greek; Greek, Modern (DOS) */ {870, "IBM870"}, /* IBM EBCDIC Multilingual/ROECE (Latin 2); IBM EBCDIC Multilingual Latin 2 */ {874, "windows-874"}, /* ANSI/OEM Thai (same as 28605, ISO 8859-15); Thai (Windows) */ {875, "cp875"}, /* IBM EBCDIC Greek Modern */ {932, "shift_jis"}, /* ANSI/OEM Japanese; Japanese (Shift-JIS) */ {936, "gb2312"}, /* ANSI/OEM Simplified Chinese (PRC, Singapore); Chinese Simplified (GB2312) */ {949, "ks_c_5601-1987"}, /* ANSI/OEM Korean (Unified Hangul Code) */ {950, "big5"}, /* ANSI/OEM Traditional Chinese (Taiwan; Hong Kong SAR, PRC); Chinese Traditional (Big5) */ {1026, "IBM1026"}, /* IBM EBCDIC Turkish (Latin 5) */ {1047, "IBM01047"}, /* IBM EBCDIC Latin 1/Open System */ {1140, "IBM01140"}, /* IBM EBCDIC US-Canada (037 + Euro symbol); IBM EBCDIC (US-Canada-Euro) */ {1141, "IBM01141"}, /* IBM EBCDIC Germany (20273 + Euro symbol); IBM EBCDIC (Germany-Euro) */ {1142, "IBM01142"}, /* IBM EBCDIC Denmark-Norway (20277 + Euro symbol); IBM EBCDIC (Denmark-Norway-Euro) */ {1143, "IBM01143"}, /* IBM EBCDIC Finland-Sweden (20278 + Euro symbol); IBM EBCDIC (Finland-Sweden-Euro) */ {1144, "IBM01144"}, /* IBM EBCDIC Italy (20280 + Euro symbol); IBM EBCDIC (Italy-Euro) */ {1145, "IBM01145"}, /* IBM EBCDIC Latin America-Spain (20284 + Euro symbol); IBM EBCDIC (Spain-Euro) */ {1146, "IBM01146"}, /* IBM EBCDIC United Kingdom (20285 + Euro symbol); IBM EBCDIC (UK-Euro) */ {1147, "IBM01147"}, /* IBM EBCDIC France (20297 + Euro symbol); IBM EBCDIC (France-Euro) */ {1148, "IBM01148"}, /* IBM EBCDIC International (500 + Euro symbol); IBM EBCDIC (International-Euro) */ {1149, "IBM01149"}, /* IBM EBCDIC Icelandic (20871 + Euro symbol); IBM EBCDIC (Icelandic-Euro) */ {1200, "utf-16"}, /* Unicode UTF-16, little endian byte order (BMP of ISO 10646); available only to managed applications */ {1201, "unicodeFFFE"}, /* Unicode UTF-16, big endian byte order; available only to managed applications */ {1250, "windows-1250"}, /* ANSI Central European; Central European (Windows) */ {1251, "windows-1251"}, /* ANSI Cyrillic; Cyrillic (Windows) */ {1252, "windows-1252"}, /* ANSI Latin 1; Western European (Windows) */ {1253, "windows-1253"}, /* ANSI Greek; Greek (Windows) */ {1254, "windows-1254"}, /* ANSI Turkish; Turkish (Windows) */ {1255, "windows-1255"}, /* ANSI Hebrew; Hebrew (Windows) */ {1256, "windows-1256"}, /* ANSI Arabic; Arabic (Windows) */ {1257, "windows-1257"}, /* ANSI Baltic; Baltic (Windows) */ {1258, "windows-1258"}, /* ANSI/OEM Vietnamese; Vietnamese (Windows) */ {1361, "Johab"}, /* Korean (Johab) */ {10000, "macintosh"}, /* MAC Roman; Western European (Mac) */ {10001, "x-mac-japanese"}, /* Japanese (Mac) */ {10002, "x-mac-chinesetrad"}, /* MAC Traditional Chinese (Big5); Chinese Traditional (Mac) */ {10003, "x-mac-korean"}, /* Korean (Mac) */ {10004, "x-mac-arabic"}, /* Arabic (Mac) */ {10005, "x-mac-hebrew"}, /* Hebrew (Mac) */ {10006, "x-mac-greek"}, /* Greek (Mac) */ {10007, "x-mac-cyrillic"}, /* Cyrillic (Mac) */ {10008, "x-mac-chinesesimp"}, /* MAC Simplified Chinese (GB 2312); Chinese Simplified (Mac) */ {10010, "x-mac-romanian"}, /* Romanian (Mac) */ {10017, "x-mac-ukrainian"}, /* Ukrainian (Mac) */ {10021, "x-mac-thai"}, /* Thai (Mac) */ {10029, "x-mac-ce"}, /* MAC Latin 2; Central European (Mac) */ {10079, "x-mac-icelandic"}, /* Icelandic (Mac) */ {10081, "x-mac-turkish"}, /* Turkish (Mac) */ {10082, "x-mac-croatian"}, /* Croatian (Mac) */ {12000, "utf-32"}, /* Unicode UTF-32, little endian byte order; available only to managed applications */ {12001, "utf-32BE"}, /* Unicode UTF-32, big endian byte order; available only to managed applications */ {20000, "x-Chinese_CNS"}, /* CNS Taiwan; Chinese Traditional (CNS) */ {20001, "x-cp20001"}, /* TCA Taiwan */ {20002, "x_Chinese-Eten"}, /* Eten Taiwan; Chinese Traditional (Eten) */ {20003, "x-cp20003"}, /* IBM5550 Taiwan */ {20004, "x-cp20004"}, /* TeleText Taiwan */ {20005, "x-cp20005"}, /* Wang Taiwan */ {20105, "x-IA5"}, /* IA5 (IRV International Alphabet No. 5, 7-bit); Western European (IA5) */ {20106, "x-IA5-German"}, /* IA5 German (7-bit) */ {20107, "x-IA5-Swedish"}, /* IA5 Swedish (7-bit) */ {20108, "x-IA5-Norwegian"}, /* IA5 Norwegian (7-bit) */ {20127, "us-ascii"}, /* US-ASCII (7-bit) */ {20261, "x-cp20261"}, /* T.61 */ {20269, "x-cp20269"}, /* ISO 6937 Non-Spacing Accent */ {20273, "IBM273"}, /* IBM EBCDIC Germany */ {20277, "IBM277"}, /* IBM EBCDIC Denmark-Norway */ {20278, "IBM278"}, /* IBM EBCDIC Finland-Sweden */ {20280, "IBM280"}, /* IBM EBCDIC Italy */ {20284, "IBM284"}, /* IBM EBCDIC Latin America-Spain */ {20285, "IBM285"}, /* IBM EBCDIC United Kingdom */ {20290, "IBM290"}, /* IBM EBCDIC Japanese Katakana Extended */ {20297, "IBM297"}, /* IBM EBCDIC France */ {20420, "IBM420"}, /* IBM EBCDIC Arabic */ {20423, "IBM423"}, /* IBM EBCDIC Greek */ {20424, "IBM424"}, /* IBM EBCDIC Hebrew */ {20833, "x-EBCDIC-KoreanExtended"}, /* IBM EBCDIC Korean Extended */ {20838, "IBM-Thai"}, /* IBM EBCDIC Thai */ {20866, "koi8-r"}, /* Russian (KOI8-R); Cyrillic (KOI8-R) */ {20871, "IBM871"}, /* IBM EBCDIC Icelandic */ {20880, "IBM880"}, /* IBM EBCDIC Cyrillic Russian */ {20905, "IBM905"}, /* IBM EBCDIC Turkish */ {20924, "IBM00924"}, /* IBM EBCDIC Latin 1/Open System (1047 + Euro symbol) */ {20932, "EUC-JP"}, /* Japanese (JIS 0208-1990 and 0121-1990) */ {20936, "x-cp20936"}, /* Simplified Chinese (GB2312); Chinese Simplified (GB2312-80) */ {20949, "x-cp20949"}, /* Korean Wansung */ {21025, "cp1025"}, /* IBM EBCDIC Cyrillic Serbian-Bulgarian */ {21866, "koi8-u"}, /* Ukrainian (KOI8-U); Cyrillic (KOI8-U) */ {28591, "iso-8859-1"}, /* ISO 8859-1 Latin 1; Western European (ISO) */ {28592, "iso-8859-2"}, /* ISO 8859-2 Central European; Central European (ISO) */ {28593, "iso-8859-3"}, /* ISO 8859-3 Latin 3 */ {28594, "iso-8859-4"}, /* ISO 8859-4 Baltic */ {28595, "iso-8859-5"}, /* ISO 8859-5 Cyrillic */ {28596, "iso-8859-6"}, /* ISO 8859-6 Arabic */ {28597, "iso-8859-7"}, /* ISO 8859-7 Greek */ {28598, "iso-8859-8"}, /* ISO 8859-8 Hebrew; Hebrew (ISO-Visual) */ {28599, "iso-8859-9"}, /* ISO 8859-9 Turkish */ {28603, "iso-8859-13"}, /* ISO 8859-13 Estonian */ {28605, "iso-8859-15"}, /* ISO 8859-15 Latin 9 */ {29001, "x-Europa"}, /* Europa 3 */ {38598, "iso-8859-8-i"}, /* ISO 8859-8 Hebrew; Hebrew (ISO-Logical) */ {50220, "iso-2022-jp"}, /* ISO 2022 Japanese with no halfwidth Katakana; Japanese (JIS) */ {50221, "csISO2022JP"}, /* ISO 2022 Japanese with halfwidth Katakana; Japanese (JIS-Allow 1 byte Kana) */ {50222, "iso-2022-jp"}, /* ISO 2022 Japanese JIS X 0201-1989; Japanese (JIS-Allow 1 byte Kana - SO/SI) */ {50225, "iso-2022-kr"}, /* ISO 2022 Korean */ {50227, "x-cp50227"}, /* ISO 2022 Simplified Chinese; Chinese Simplified (ISO 2022) */ {51932, "euc-jp"}, /* EUC Japanese */ {51936, "EUC-CN"}, /* EUC Simplified Chinese; Chinese Simplified (EUC) */ {51949, "euc-kr"}, /* EUC Korean */ {52936, "hz-gb-2312"}, /* HZ-GB2312 Simplified Chinese; Chinese Simplified (HZ) */ {54936, "GB18030"}, /* Windows XP and later: GB18030 Simplified Chinese (4 byte); Chinese Simplified (GB18030) */ {57002, "x-iscii-de"}, /* ISCII Devanagari */ {57003, "x-iscii-be"}, /* ISCII Bengali */ {57004, "x-iscii-ta"}, /* ISCII Tamil */ {57005, "x-iscii-te"}, /* ISCII Telugu */ {57006, "x-iscii-as"}, /* ISCII Assamese */ {57007, "x-iscii-or"}, /* ISCII Oriya */ {57008, "x-iscii-ka"}, /* ISCII Kannada */ {57009, "x-iscii-ma"}, /* ISCII Malayalam */ {57010, "x-iscii-gu"}, /* ISCII Gujarati */ {57011, "x-iscii-pa"}, /* ISCII Punjabi */ {65000, "utf-7"}, /* Unicode (UTF-7) */ {65001, "utf-8"}, /* Unicode (UTF-8) */ }; int find_code_page(const char * encoding, UINT * code_page) { for (size_t i = 0; i < sizeof(code_pages) / sizeof(code_pages[0]); i++) { if (strcasecmp(encoding, code_pages[i].string) == 0) { *code_page = code_pages[i].value; return 0; } } return -1; } int jscoverage_bytes_to_characters(const char * encoding, const uint8_t * bytes, size_t num_bytes, jschar ** characters, size_t * num_characters) { assert(encoding != NULL); if (num_bytes == 0) { *characters = xnew(jschar, 0); *num_characters = 0; return 0; } UINT code_page; if (find_code_page(encoding, &code_page) != 0) { return JSCOVERAGE_ERROR_ENCODING_NOT_SUPPORTED; } if (num_bytes > INT_MAX) { fatal("overflow"); } *characters = xnew(jschar, num_bytes); int result = MultiByteToWideChar(code_page, MB_ERR_INVALID_CHARS, bytes, num_bytes, *characters, num_bytes); if (result == 0) { free(*characters); return JSCOVERAGE_ERROR_INVALID_BYTE_SEQUENCE; } *num_characters = result; skip_bom(characters, num_characters); return 0; } #else int jscoverage_bytes_to_characters(const char * encoding, const uint8_t * bytes, size_t num_bytes, jschar ** characters, size_t * num_characters) { assert(encoding != NULL); if (strcasecmp(encoding, "us-ascii") != 0 && strcasecmp(encoding, "iso-8859-1") != 0 && strcasecmp(encoding, "utf-8") != 0) { return JSCOVERAGE_ERROR_ENCODING_NOT_SUPPORTED; } jschar * c = xnew(jschar, num_bytes); for (size_t i = 0; i < num_bytes; i++) { if (bytes[i] > 127) { free(c); return JSCOVERAGE_ERROR_ENCODING_NOT_SUPPORTED; } c[i] = bytes[i]; } *characters = c; *num_characters = num_bytes; return 0; } #endif