diff options
Diffstat (limited to 'libotr/libgpg-error-1.42/src/w32-iconv.c')
| -rw-r--r-- | libotr/libgpg-error-1.42/src/w32-iconv.c | 1795 |
1 files changed, 1795 insertions, 0 deletions
diff --git a/libotr/libgpg-error-1.42/src/w32-iconv.c b/libotr/libgpg-error-1.42/src/w32-iconv.c new file mode 100644 index 0000000..888b722 --- /dev/null +++ b/libotr/libgpg-error-1.42/src/w32-iconv.c @@ -0,0 +1,1795 @@ +/* w32-iconv.c - iconv implementation for Windows. + * Copyright (C) 2016 g10 Code GmbH + * + * This file is part of libgpg-error. + * + * libgpg-error is free software; you can redistribute it and/or + * modify it under the terms of the GNU Lesser General Public License + * as published by the Free Software Foundation; either version 2.1 of + * the License, or (at your option) any later version. + * + * libgpg-error 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 + * Lesser General Public License for more details. + * + * You should have received a copy of the GNU Lesser General Public + * License along with this program; if not, see <https://www.gnu.org/licenses/>. + * + ************************************************************** + * This code code is based on the file win_iconv.c as found + * at https://github.com/win-iconv/win-iconv with the commit id + * 8c23784e35327c9d85d22810b9e4a2cbd06ffe90, dated 2016-03-18. + * Yukihiro Nakadaira <yukihiro.nakadaira@gmail.com> is the + * original author. The file win_iconv.c carried this notice: + *-------------------------------------------------------------- + * iconv implementation using Win32 API to convert. + * + * This file is placed in the public domain. + *--------------------------------------------------- + */ + +#if HAVE_CONFIG_H +#include <config.h> +#endif +#if !defined (_WIN32) && !defined (__CYGWIN32__) +# error This module may only be build for Windows or Cygwin32 +#endif + +/* for WC_NO_BEST_FIT_CHARS */ +#ifndef WINVER +# define WINVER 0x0500 +#endif + +#include <windows.h> +#include <errno.h> +#include <string.h> +#include <stdlib.h> + +#include "gpgrt-int.h" + +#undef USE_MLANG_DLL + +#define MB_CHAR_MAX 16 + +#define UNICODE_MODE_BOM_DONE 1 +#define UNICODE_MODE_SWAPPED 2 + +#define FLAG_USE_BOM 1 +#define FLAG_TRANSLIT 2 /* //TRANSLIT */ +#define FLAG_IGNORE 4 /* //IGNORE */ + +typedef unsigned char uchar; +typedef unsigned short ushort; +typedef unsigned int uint; + +typedef struct compat_t compat_t; +typedef struct csconv_t csconv_t; + +typedef int* (*f_errno)(void); +typedef int (*f_mbtowc)(csconv_t *cv, const uchar *buf, int bufsize, ushort *wbuf, int *wbufsize); +typedef int (*f_wctomb)(csconv_t *cv, ushort *wbuf, int wbufsize, uchar *buf, int bufsize); +typedef int (*f_mblen)(csconv_t *cv, const uchar *buf, int bufsize); +typedef int (*f_flush)(csconv_t *cv, uchar *buf, int bufsize); + +#define COMPAT_IN 1 +#define COMPAT_OUT 2 + +/* unicode mapping for compatibility with other conversion table. */ +struct compat_t { + uint in; + uint out; + uint flag; +}; + +struct csconv_t { + int codepage; + int flags; + f_mbtowc mbtowc; + f_wctomb wctomb; + f_mblen mblen; + f_flush flush; + DWORD mode; + compat_t *compat; +}; + +struct _gpgrt_w32_iconv_s { + f_errno _errno; + csconv_t from; + csconv_t to; +}; + +#if USE_MLANG_DLL +static int load_mlang(void); +#endif /*USE_MLANG_DLL*/ + +static int make_csconv(const char *name, csconv_t *cv); +static int name_to_codepage(const char *name); +static uint utf16_to_ucs4(const ushort *wbuf); +static void ucs4_to_utf16(uint wc, ushort *wbuf, int *wbufsize); +static int mbtowc_flags(int codepage); +static int must_use_null_useddefaultchar(int codepage); +static char *strrstr(const char *str, const char *token); +static char *xstrndup(const char *s, size_t n); +static int seterror(int err); + +static int sbcs_mblen(csconv_t *cv, const uchar *buf, int bufsize); +static int dbcs_mblen(csconv_t *cv, const uchar *buf, int bufsize); +static int mbcs_mblen(csconv_t *cv, const uchar *buf, int bufsize); +static int utf8_mblen(csconv_t *cv, const uchar *buf, int bufsize); +#if USE_MLANG_DLL +static int eucjp_mblen(csconv_t *cv, const uchar *buf, int bufsize); +#endif /*USE_MLANG_DLL*/ + +static int kernel_mbtowc(csconv_t *cv, const uchar *buf, int bufsize, ushort *wbuf, int *wbufsize); +static int kernel_wctomb(csconv_t *cv, ushort *wbuf, int wbufsize, uchar *buf, int bufsize); + +#if USE_MLANG_DLL +static int mlang_mbtowc(csconv_t *cv, const uchar *buf, int bufsize, ushort *wbuf, int *wbufsize); +static int mlang_wctomb(csconv_t *cv, ushort *wbuf, int wbufsize, uchar *buf, int bufsize); +#endif /*USE_MLANG_DLL*/ + +static int utf16_mbtowc(csconv_t *cv, const uchar *buf, int bufsize, ushort *wbuf, int *wbufsize); +static int utf16_wctomb(csconv_t *cv, ushort *wbuf, int wbufsize, uchar *buf, int bufsize); +static int utf32_mbtowc(csconv_t *cv, const uchar *buf, int bufsize, ushort *wbuf, int *wbufsize); +static int utf32_wctomb(csconv_t *cv, ushort *wbuf, int wbufsize, uchar *buf, int bufsize); + +#if USE_MLANG_DLL +static int iso2022jp_mbtowc(csconv_t *cv, const uchar *buf, int bufsize, ushort *wbuf, int *wbufsize); +static int iso2022jp_wctomb(csconv_t *cv, ushort *wbuf, int wbufsize, uchar *buf, int bufsize); +static int iso2022jp_flush(csconv_t *cv, uchar *buf, int bufsize); +#endif /*USE_MLANG_DLL*/ + +static struct { + int codepage; + const char *name; +} codepage_alias[] = { + {65001, "CP65001"}, + {65001, "UTF8"}, + {65001, "UTF-8"}, + + {1200, "CP1200"}, + {1200, "UTF16LE"}, + {1200, "UTF-16LE"}, + {1200, "UCS2LE"}, + {1200, "UCS-2LE"}, + {1200, "UCS-2-INTERNAL"}, + + {1201, "CP1201"}, + {1201, "UTF16BE"}, + {1201, "UTF-16BE"}, + {1201, "UCS2BE"}, + {1201, "UCS-2BE"}, + {1201, "unicodeFFFE"}, + + {12000, "CP12000"}, + {12000, "UTF32LE"}, + {12000, "UTF-32LE"}, + {12000, "UCS4LE"}, + {12000, "UCS-4LE"}, + + {12001, "CP12001"}, + {12001, "UTF32BE"}, + {12001, "UTF-32BE"}, + {12001, "UCS4BE"}, + {12001, "UCS-4BE"}, + + /* + * Default is big endian. + * See rfc2781 4.3 Interpreting text labelled as UTF-16. + */ + {1201, "UTF16"}, + {1201, "UTF-16"}, + {1201, "UCS2"}, + {1201, "UCS-2"}, + {12001, "UTF32"}, + {12001, "UTF-32"}, + {12001, "UCS-4"}, + {12001, "UCS4"}, + + /* copy from libiconv `iconv -l` */ + /* !IsValidCodePage(367) */ + {20127, "ANSI_X3.4-1968"}, + {20127, "ANSI_X3.4-1986"}, + {20127, "ASCII"}, + {20127, "CP367"}, + {20127, "IBM367"}, + {20127, "ISO-IR-6"}, + {20127, "ISO646-US"}, + {20127, "ISO_646.IRV:1991"}, + {20127, "US"}, + {20127, "US-ASCII"}, + {20127, "CSASCII"}, + + /* !IsValidCodePage(819) */ + {1252, "CP819"}, + {1252, "IBM819"}, + {28591, "ISO-8859-1"}, + {28591, "ISO-IR-100"}, + {28591, "ISO8859-1"}, + {28591, "ISO_8859-1"}, + {28591, "ISO_8859-1:1987"}, + {28591, "L1"}, + {28591, "LATIN1"}, + {28591, "CSISOLATIN1"}, + + {1250, "CP1250"}, + {1250, "MS-EE"}, + {1250, "WINDOWS-1250"}, + + {1251, "CP1251"}, + {1251, "MS-CYRL"}, + {1251, "WINDOWS-1251"}, + + {1252, "CP1252"}, + {1252, "MS-ANSI"}, + {1252, "WINDOWS-1252"}, + + {1253, "CP1253"}, + {1253, "MS-GREEK"}, + {1253, "WINDOWS-1253"}, + + {1254, "CP1254"}, + {1254, "MS-TURK"}, + {1254, "WINDOWS-1254"}, + + {1255, "CP1255"}, + {1255, "MS-HEBR"}, + {1255, "WINDOWS-1255"}, + + {1256, "CP1256"}, + {1256, "MS-ARAB"}, + {1256, "WINDOWS-1256"}, + + {1257, "CP1257"}, + {1257, "WINBALTRIM"}, + {1257, "WINDOWS-1257"}, + + {1258, "CP1258"}, + {1258, "WINDOWS-1258"}, + + {850, "850"}, + {850, "CP850"}, + {850, "IBM850"}, + {850, "CSPC850MULTILINGUAL"}, + + /* !IsValidCodePage(862) */ + {862, "862"}, + {862, "CP862"}, + {862, "IBM862"}, + {862, "CSPC862LATINHEBREW"}, + + {866, "866"}, + {866, "CP866"}, + {866, "IBM866"}, + {866, "CSIBM866"}, + + /* !IsValidCodePage(154) */ + {154, "CP154"}, + {154, "CYRILLIC-ASIAN"}, + {154, "PT154"}, + {154, "PTCP154"}, + {154, "CSPTCP154"}, + + /* !IsValidCodePage(1133) */ + {1133, "CP1133"}, + {1133, "IBM-CP1133"}, + + {874, "CP874"}, + {874, "WINDOWS-874"}, + + /* !IsValidCodePage(51932) */ + {51932, "CP51932"}, + {51932, "MS51932"}, + {51932, "WINDOWS-51932"}, + {51932, "EUC-JP"}, + + {932, "CP932"}, + {932, "MS932"}, + {932, "SHIFFT_JIS"}, + {932, "SHIFFT_JIS-MS"}, + {932, "SJIS"}, + {932, "SJIS-MS"}, + {932, "SJIS-OPEN"}, + {932, "SJIS-WIN"}, + {932, "WINDOWS-31J"}, + {932, "WINDOWS-932"}, + {932, "CSWINDOWS31J"}, + + {50221, "CP50221"}, + {50221, "ISO-2022-JP"}, + {50221, "ISO-2022-JP-MS"}, + {50221, "ISO2022-JP"}, + {50221, "ISO2022-JP-MS"}, + {50221, "MS50221"}, + {50221, "WINDOWS-50221"}, + + {936, "CP936"}, + {936, "GBK"}, + {936, "MS936"}, + {936, "WINDOWS-936"}, + + {950, "CP950"}, + {950, "BIG5"}, + {950, "BIG5HKSCS"}, + {950, "BIG5-HKSCS"}, + + {949, "CP949"}, + {949, "UHC"}, + {949, "EUC-KR"}, + + {1361, "CP1361"}, + {1361, "JOHAB"}, + + {437, "437"}, + {437, "CP437"}, + {437, "IBM437"}, + {437, "CSPC8CODEPAGE437"}, + + {737, "CP737"}, + + {775, "CP775"}, + {775, "IBM775"}, + {775, "CSPC775BALTIC"}, + + {852, "852"}, + {852, "CP852"}, + {852, "IBM852"}, + {852, "CSPCP852"}, + + /* !IsValidCodePage(853) */ + {853, "CP853"}, + + {855, "855"}, + {855, "CP855"}, + {855, "IBM855"}, + {855, "CSIBM855"}, + + {857, "857"}, + {857, "CP857"}, + {857, "IBM857"}, + {857, "CSIBM857"}, + + /* !IsValidCodePage(858) */ + {858, "CP858"}, + + {860, "860"}, + {860, "CP860"}, + {860, "IBM860"}, + {860, "CSIBM860"}, + + {861, "861"}, + {861, "CP-IS"}, + {861, "CP861"}, + {861, "IBM861"}, + {861, "CSIBM861"}, + + {863, "863"}, + {863, "CP863"}, + {863, "IBM863"}, + {863, "CSIBM863"}, + + {864, "CP864"}, + {864, "IBM864"}, + {864, "CSIBM864"}, + + {865, "865"}, + {865, "CP865"}, + {865, "IBM865"}, + {865, "CSIBM865"}, + + {869, "869"}, + {869, "CP-GR"}, + {869, "CP869"}, + {869, "IBM869"}, + {869, "CSIBM869"}, + + /* !IsValidCodePage(1152) */ + {1125, "CP1125"}, + + /* + * Code Page Identifiers + * https://msdn.microsoft.com/en-us/library/dd317756.aspx + */ + {37, "IBM037"}, /* IBM EBCDIC US-Canada */ + {437, "IBM437"}, /* OEM United States */ + {500, "IBM500"}, /* IBM EBCDIC International */ + {708, "ASMO-708"}, /* Arabic (ASMO 708) */ + /* 709 Arabic (ASMO-449+, BCON V4) */ + /* 710 Arabic - Transparent Arabic */ + {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) */ + {932, "shift-jis"}, /* alternative name for it */ + {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) */ + {950, "big5hkscs"}, /* ANSI/OEM Traditional Chinese (Hong Kong SAR); Chinese Traditional (Big5-HKSCS) */ + {950, "big5-hkscs"}, /* alternative name for it */ + {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) */ + {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) */ + {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 */ + /* 21027 (deprecated) */ + {21866, "koi8-u"}, /* Ukrainian (KOI8-U); Cyrillic (KOI8-U) */ + {28591, "iso-8859-1"}, /* ISO 8859-1 Latin 1; Western European (ISO) */ + {28591, "iso8859-1"}, /* ISO 8859-1 Latin 1; Western European (ISO) */ + {28591, "iso_8859-1"}, + {28591, "iso_8859_1"}, + {28592, "iso-8859-2"}, /* ISO 8859-2 Central European; Central European (ISO) */ + {28592, "iso8859-2"}, /* ISO 8859-2 Central European; Central European (ISO) */ + {28592, "iso_8859-2"}, + {28592, "iso_8859_2"}, + {28593, "iso-8859-3"}, /* ISO 8859-3 Latin 3 */ + {28593, "iso8859-3"}, /* ISO 8859-3 Latin 3 */ + {28593, "iso_8859-3"}, + {28593, "iso_8859_3"}, + {28594, "iso-8859-4"}, /* ISO 8859-4 Baltic */ + {28594, "iso8859-4"}, /* ISO 8859-4 Baltic */ + {28594, "iso_8859-4"}, + {28594, "iso_8859_4"}, + {28595, "iso-8859-5"}, /* ISO 8859-5 Cyrillic */ + {28595, "iso8859-5"}, /* ISO 8859-5 Cyrillic */ + {28595, "iso_8859-5"}, + {28595, "iso_8859_5"}, + {28596, "iso-8859-6"}, /* ISO 8859-6 Arabic */ + {28596, "iso8859-6"}, /* ISO 8859-6 Arabic */ + {28596, "iso_8859-6"}, + {28596, "iso_8859_6"}, + {28597, "iso-8859-7"}, /* ISO 8859-7 Greek */ + {28597, "iso8859-7"}, /* ISO 8859-7 Greek */ + {28597, "iso_8859-7"}, + {28597, "iso_8859_7"}, + {28598, "iso-8859-8"}, /* ISO 8859-8 Hebrew; Hebrew (ISO-Visual) */ + {28598, "iso8859-8"}, /* ISO 8859-8 Hebrew; Hebrew (ISO-Visual) */ + {28598, "iso_8859-8"}, + {28598, "iso_8859_8"}, + {28599, "iso-8859-9"}, /* ISO 8859-9 Turkish */ + {28599, "iso8859-9"}, /* ISO 8859-9 Turkish */ + {28599, "iso_8859-9"}, + {28599, "iso_8859_9"}, + {28603, "iso-8859-13"}, /* ISO 8859-13 Estonian */ + {28603, "iso8859-13"}, /* ISO 8859-13 Estonian */ + {28603, "iso_8859-13"}, + {28603, "iso_8859_13"}, + {28605, "iso-8859-15"}, /* ISO 8859-15 Latin 9 */ + {28605, "iso8859-15"}, /* ISO 8859-15 Latin 9 */ + {28605, "iso_8859-15"}, + {28605, "iso_8859_15"}, + {29001, "x-Europa"}, /* Europa 3 */ + {38598, "iso-8859-8-i"}, /* ISO 8859-8 Hebrew; Hebrew (ISO-Logical) */ + {38598, "iso8859-8-i"}, /* ISO 8859-8 Hebrew; Hebrew (ISO-Logical) */ + {38598, "iso_8859-8-i"}, + {38598, "iso_8859_8-i"}, + {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 */ + {50225, "iso2022-kr"}, /* ISO 2022 Korean */ + {50227, "x-cp50227"}, /* ISO 2022 Simplified Chinese; Chinese Simplified (ISO 2022) */ + /* 50229 ISO 2022 Traditional Chinese */ + /* 50930 EBCDIC Japanese (Katakana) Extended */ + /* 50931 EBCDIC US-Canada and Japanese */ + /* 50933 EBCDIC Korean Extended and Korean */ + /* 50935 EBCDIC Simplified Chinese Extended and Simplified Chinese */ + /* 50936 EBCDIC Simplified Chinese */ + /* 50937 EBCDIC US-Canada and Traditional Chinese */ + /* 50939 EBCDIC Japanese (Latin) Extended and Japanese */ + {51932, "euc-jp"}, /* EUC Japanese */ + {51936, "EUC-CN"}, /* EUC Simplified Chinese; Chinese Simplified (EUC) */ + {51949, "euc-kr"}, /* EUC Korean */ + /* 51950 EUC Traditional Chinese */ + {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 */ + + {0, NULL} +}; + +/* + * SJIS SHIFTJIS table CP932 table + * ---- --------------------------- -------------------------------- + * 5C U+00A5 YEN SIGN U+005C REVERSE SOLIDUS + * 7E U+203E OVERLINE U+007E TILDE + * 815C U+2014 EM DASH U+2015 HORIZONTAL BAR + * 815F U+005C REVERSE SOLIDUS U+FF3C FULLWIDTH REVERSE SOLIDUS + * 8160 U+301C WAVE DASH U+FF5E FULLWIDTH TILDE + * 8161 U+2016 DOUBLE VERTICAL LINE U+2225 PARALLEL TO + * 817C U+2212 MINUS SIGN U+FF0D FULLWIDTH HYPHEN-MINUS + * 8191 U+00A2 CENT SIGN U+FFE0 FULLWIDTH CENT SIGN + * 8192 U+00A3 POUND SIGN U+FFE1 FULLWIDTH POUND SIGN + * 81CA U+00AC NOT SIGN U+FFE2 FULLWIDTH NOT SIGN + * + * EUC-JP and ISO-2022-JP should be compatible with CP932. + * + * Kernel and MLang have different Unicode mapping table. Make sure + * which API is used. + */ +static compat_t cp932_compat[] = { + {0x00A5, 0x005C, COMPAT_OUT}, + {0x203E, 0x007E, COMPAT_OUT}, + {0x2014, 0x2015, COMPAT_OUT}, + {0x301C, 0xFF5E, COMPAT_OUT}, + {0x2016, 0x2225, COMPAT_OUT}, + {0x2212, 0xFF0D, COMPAT_OUT}, + {0x00A2, 0xFFE0, COMPAT_OUT}, + {0x00A3, 0xFFE1, COMPAT_OUT}, + {0x00AC, 0xFFE2, COMPAT_OUT}, + {0, 0, 0} +}; + +static compat_t cp20932_compat[] = { + {0x00A5, 0x005C, COMPAT_OUT}, + {0x203E, 0x007E, COMPAT_OUT}, + {0x2014, 0x2015, COMPAT_OUT}, + {0xFF5E, 0x301C, COMPAT_OUT|COMPAT_IN}, + {0x2225, 0x2016, COMPAT_OUT|COMPAT_IN}, + {0xFF0D, 0x2212, COMPAT_OUT|COMPAT_IN}, + {0xFFE0, 0x00A2, COMPAT_OUT|COMPAT_IN}, + {0xFFE1, 0x00A3, COMPAT_OUT|COMPAT_IN}, + {0xFFE2, 0x00AC, COMPAT_OUT|COMPAT_IN}, + {0, 0, 0} +}; + +static compat_t *cp51932_compat = cp932_compat; + +/* cp20932_compat for kernel. cp932_compat for mlang. */ +static compat_t *cp5022x_compat = cp932_compat; + +#if USE_MLANG_DLL +typedef HRESULT (WINAPI *CONVERTINETSTRING)( + LPDWORD lpdwMode, + DWORD dwSrcEncoding, + DWORD dwDstEncoding, + LPCSTR lpSrcStr, + LPINT lpnSrcSize, + LPBYTE lpDstStr, + LPINT lpnDstSize +); +typedef HRESULT (WINAPI *CONVERTINETMULTIBYTETOUNICODE)( + LPDWORD lpdwMode, + DWORD dwSrcEncoding, + LPCSTR lpSrcStr, + LPINT lpnMultiCharCount, + LPWSTR lpDstStr, + LPINT lpnWideCharCount +); +typedef HRESULT (WINAPI *CONVERTINETUNICODETOMULTIBYTE)( + LPDWORD lpdwMode, + DWORD dwEncoding, + LPCWSTR lpSrcStr, + LPINT lpnWideCharCount, + LPSTR lpDstStr, + LPINT lpnMultiCharCount +); +typedef HRESULT (WINAPI *ISCONVERTINETSTRINGAVAILABLE)( + DWORD dwSrcEncoding, + DWORD dwDstEncoding +); +typedef HRESULT (WINAPI *LCIDTORFC1766A)( + LCID Locale, + LPSTR pszRfc1766, + int nChar +); +typedef HRESULT (WINAPI *LCIDTORFC1766W)( + LCID Locale, + LPWSTR pszRfc1766, + int nChar +); +typedef HRESULT (WINAPI *RFC1766TOLCIDA)( + LCID *pLocale, + LPSTR pszRfc1766 +); +typedef HRESULT (WINAPI *RFC1766TOLCIDW)( + LCID *pLocale, + LPWSTR pszRfc1766 +); +static CONVERTINETSTRING ConvertINetString; +static CONVERTINETMULTIBYTETOUNICODE ConvertINetMultiByteToUnicode; +static CONVERTINETUNICODETOMULTIBYTE ConvertINetUnicodeToMultiByte; +static ISCONVERTINETSTRINGAVAILABLE IsConvertINetStringAvailable; +static LCIDTORFC1766A LcidToRfc1766A; +static RFC1766TOLCIDA Rfc1766ToLcidA; +#endif /*USE_MLANG_DLL*/ + +#if USE_MLANG_DLL +static int +load_mlang(void) +{ + HMODULE h; + if (ConvertINetString != NULL) + return TRUE; + h = LoadLibrary(TEXT("mlang.dll")); + if (!h) + return FALSE; + ConvertINetString = (CONVERTINETSTRING)GetProcAddressA(h, "ConvertINetString"); + ConvertINetMultiByteToUnicode = (CONVERTINETMULTIBYTETOUNICODE)GetProcAddressA(h, "ConvertINetMultiByteToUnicode"); + ConvertINetUnicodeToMultiByte = (CONVERTINETUNICODETOMULTIBYTE)GetProcAddressA(h, "ConvertINetUnicodeToMultiByte"); + IsConvertINetStringAvailable = (ISCONVERTINETSTRINGAVAILABLE)GetProcAddressA(h, "IsConvertINetStringAvailable"); + LcidToRfc1766A = (LCIDTORFC1766A)GetProcAddressA(h, "LcidToRfc1766A"); + Rfc1766ToLcidA = (RFC1766TOLCIDA)GetProcAddressA(h, "Rfc1766ToLcidA"); + return TRUE; +} +#endif + + +static int +win_iconv_open(gpgrt_w32_iconv_t cd, const char *tocode, const char *fromcode) +{ + if (!make_csconv(fromcode, &cd->from) || !make_csconv(tocode, &cd->to)) + return FALSE; + cd->_errno = _errno; + return TRUE; +} + +static size_t +win_iconv (gpgrt_w32_iconv_t cd, + const char **inbuf, size_t *inbytesleft, + char **outbuf, size_t *outbytesleft) +{ + ushort wbuf[MB_CHAR_MAX]; /* enough room for one character */ + int insize; + int outsize; + int wsize; + DWORD frommode; + DWORD tomode; + uint wc; + compat_t *cp; + int i; + + if (inbuf == NULL || *inbuf == NULL) + { + if (outbuf != NULL && *outbuf != NULL && cd->to.flush != NULL) + { + tomode = cd->to.mode; + outsize = cd->to.flush(&cd->to, (uchar *)*outbuf, *outbytesleft); + if (outsize == -1) + { + if ((cd->to.flags & FLAG_IGNORE) && errno != E2BIG) + { + outsize = 0; + } + else + { + cd->to.mode = tomode; + return (size_t)(-1); + } + } + *outbuf += outsize; + *outbytesleft -= outsize; + } + cd->from.mode = 0; + cd->to.mode = 0; + return 0; + } + + while (*inbytesleft != 0) + { + frommode = cd->from.mode; + tomode = cd->to.mode; + wsize = MB_CHAR_MAX; + + insize = cd->from.mbtowc(&cd->from, (const uchar *)*inbuf, *inbytesleft, wbuf, &wsize); + if (insize == -1) + { + if (cd->to.flags & FLAG_IGNORE) + { + cd->from.mode = frommode; + insize = 1; + wsize = 0; + } + else + { + cd->from.mode = frommode; + return (size_t)(-1); + } + } + + if (wsize == 0) + { + *inbuf += insize; + *inbytesleft -= insize; + continue; + } + + if (cd->from.compat != NULL) + { + wc = utf16_to_ucs4(wbuf); + cp = cd->from.compat; + for (i = 0; cp[i].in != 0; ++i) + { + if ((cp[i].flag & COMPAT_IN) && cp[i].out == wc) + { + ucs4_to_utf16(cp[i].in, wbuf, &wsize); + break; + } + } + } + + if (cd->to.compat != NULL) + { + wc = utf16_to_ucs4(wbuf); + cp = cd->to.compat; + for (i = 0; cp[i].in != 0; ++i) + { + if ((cp[i].flag & COMPAT_OUT) && cp[i].in == wc) + { + ucs4_to_utf16(cp[i].out, wbuf, &wsize); + break; + } + } + } + + outsize = cd->to.wctomb(&cd->to, wbuf, wsize, (uchar *)*outbuf, *outbytesleft); + if (outsize == -1) + { + if ((cd->to.flags & FLAG_IGNORE) && errno != E2BIG) + { + cd->to.mode = tomode; + outsize = 0; + } + else + { + cd->from.mode = frommode; + cd->to.mode = tomode; + return (size_t)(-1); + } + } + + *inbuf += insize; + *outbuf += outsize; + *inbytesleft -= insize; + *outbytesleft -= outsize; + } + + return 0; +} + +static int +make_csconv(const char *_name, csconv_t *cv) +{ + CPINFO cpinfo; + int use_compat = TRUE; + int flag = 0; + char *name; + char *p; + + name = xstrndup(_name, strlen(_name)); + if (name == NULL) + return FALSE; + + /* check for option "enc_name//opt1//opt2" */ + while ((p = strrstr(name, "//")) != NULL) + { + if (_stricmp(p + 2, "nocompat") == 0) + use_compat = FALSE; + else if (_stricmp(p + 2, "translit") == 0) + flag |= FLAG_TRANSLIT; + else if (_stricmp(p + 2, "ignore") == 0) + flag |= FLAG_IGNORE; + *p = 0; + } + + cv->mode = 0; + cv->flags = flag; + cv->mblen = NULL; + cv->flush = NULL; + cv->compat = NULL; + cv->codepage = name_to_codepage(name); + if (cv->codepage == 1200 || cv->codepage == 1201) + { + cv->mbtowc = utf16_mbtowc; + cv->wctomb = utf16_wctomb; + if (_stricmp(name, "UTF-16") == 0 || _stricmp(name, "UTF16") == 0 || + _stricmp(name, "UCS-2") == 0 || _stricmp(name, "UCS2") == 0 || + _stricmp(name,"UCS-2-INTERNAL") == 0) + cv->flags |= FLAG_USE_BOM; + } + else if (cv->codepage == 12000 || cv->codepage == 12001) + { + cv->mbtowc = utf32_mbtowc; + cv->wctomb = utf32_wctomb; + if (_stricmp(name, "UTF-32") == 0 || _stricmp(name, "UTF32") == 0 || + _stricmp(name, "UCS-4") == 0 || _stricmp(name, "UCS4") == 0) + cv->flags |= FLAG_USE_BOM; + } + else if (cv->codepage == 65001) + { + cv->mbtowc = kernel_mbtowc; + cv->wctomb = kernel_wctomb; + cv->mblen = utf8_mblen; + } +#if USE_MLANG_DLL + else if ((cv->codepage == 50220 || cv->codepage == 50221 || cv->codepage == 50222) && load_mlang()) + { + cv->mbtowc = iso2022jp_mbtowc; + cv->wctomb = iso2022jp_wctomb; + cv->flush = iso2022jp_flush; + } + else if (cv->codepage == 51932 && load_mlang()) + { + cv->mbtowc = mlang_mbtowc; + cv->wctomb = mlang_wctomb; + cv->mblen = eucjp_mblen; + } +#endif /*USE_MLANG_DLL*/ + else if (IsValidCodePage(cv->codepage) + && GetCPInfo(cv->codepage, &cpinfo) != 0) + { + cv->mbtowc = kernel_mbtowc; + cv->wctomb = kernel_wctomb; + if (cpinfo.MaxCharSize == 1) + cv->mblen = sbcs_mblen; + else if (cpinfo.MaxCharSize == 2) + cv->mblen = dbcs_mblen; + else + cv->mblen = mbcs_mblen; + } + else + { + /* not supported */ + free(name); + errno = EINVAL; + return FALSE; + } + + if (use_compat) + { + switch (cv->codepage) + { + case 932: cv->compat = cp932_compat; break; + case 20932: cv->compat = cp20932_compat; break; + case 51932: cv->compat = cp51932_compat; break; + case 50220: case 50221: case 50222: cv->compat = cp5022x_compat; break; + } + } + + free(name); + + return TRUE; +} + +static int +name_to_codepage(const char *name) +{ + int i; + + if (*name == '\0' || + strcmp(name, "char") == 0) + return GetACP(); + else if (strcmp(name, "wchar_t") == 0) + return 1200; + else if (_strnicmp(name, "cp", 2) == 0) + return atoi(name + 2); /* CP123 */ + else if ('0' <= name[0] && name[0] <= '9') + return atoi(name); /* 123 */ + else if (_strnicmp(name, "xx", 2) == 0) + return atoi(name + 2); /* XX123 for debug */ + + for (i = 0; codepage_alias[i].name != NULL; ++i) + if (_stricmp(name, codepage_alias[i].name) == 0) + return codepage_alias[i].codepage; + return -1; +} + +/* + * https://tools.ietf.org/html/rfc2781 + */ +static uint +utf16_to_ucs4(const ushort *wbuf) +{ + uint wc = wbuf[0]; + if (0xD800 <= wbuf[0] && wbuf[0] <= 0xDBFF) + wc = ((wbuf[0] & 0x3FF) << 10) + (wbuf[1] & 0x3FF) + 0x10000; + return wc; +} + +static void +ucs4_to_utf16(uint wc, ushort *wbuf, int *wbufsize) +{ + if (wc < 0x10000) + { + wbuf[0] = wc; + *wbufsize = 1; + } + else + { + wc -= 0x10000; + wbuf[0] = 0xD800 | ((wc >> 10) & 0x3FF); + wbuf[1] = 0xDC00 | (wc & 0x3FF); + *wbufsize = 2; + } +} + +/* + * Check if codepage is one of those for which the dwFlags parameter + * to MultiByteToWideChar() must be zero. Return zero or + * MB_ERR_INVALID_CHARS. The docs in Platform SDK for Windows + * Server 2003 R2 claims that also codepage 65001 is one of these, but + * that doesn't seem to be the case. The MSDN docs for MSVS2008 leave + * out 65001 (UTF-8), and that indeed seems to be the case on XP, it + * works fine to pass MB_ERR_INVALID_CHARS in dwFlags when converting + * from UTF-8. + */ +static int +mbtowc_flags(int codepage) +{ + return (codepage == 50220 || codepage == 50221 || + codepage == 50222 || codepage == 50225 || + codepage == 50227 || codepage == 50229 || + codepage == 52936 || codepage == 54936 || + (codepage >= 57002 && codepage <= 57011) || + codepage == 65000 || codepage == 42) ? 0 : MB_ERR_INVALID_CHARS; +} + +/* + * Check if codepage is one those for which the lpUsedDefaultChar + * parameter to WideCharToMultiByte() must be NULL. The docs in + * Platform SDK for Windows Server 2003 R2 claims that this is the + * list below, while the MSDN docs for MSVS2008 claim that it is only + * for 65000 (UTF-7) and 65001 (UTF-8). This time the earlier Platform + * SDK seems to be correct, at least for XP. + */ +static int +must_use_null_useddefaultchar(int codepage) +{ + return (codepage == 65000 || codepage == 65001 || + codepage == 50220 || codepage == 50221 || + codepage == 50222 || codepage == 50225 || + codepage == 50227 || codepage == 50229 || + codepage == 52936 || codepage == 54936 || + (codepage >= 57002 && codepage <= 57011) || + codepage == 42); +} + +static char * +strrstr(const char *str, const char *token) +{ + int len = strlen(token); + const char *p = str + strlen(str); + + while (str <= --p) + if (p[0] == token[0] && strncmp(p, token, len) == 0) + return (char *)p; + return NULL; +} + +static char * +xstrndup(const char *s, size_t n) +{ + char *p; + + p = (char *)malloc(n + 1); + if (p == NULL) + return NULL; + memcpy(p, s, n); + p[n] = '\0'; + return p; +} + +static int +seterror(int err) +{ + _gpg_err_set_errno (err); + return -1; +} + + +static int +sbcs_mblen(csconv_t *cv, const uchar *buf, int bufsize) +{ + (void)cv; + (void)buf; + (void)bufsize; + return 1; +} + +static int +dbcs_mblen(csconv_t *cv, const uchar *buf, int bufsize) +{ + int len = IsDBCSLeadByteEx(cv->codepage, buf[0]) ? 2 : 1; + if (bufsize < len) + return seterror(EINVAL); + return len; +} + +static int +mbcs_mblen(csconv_t *cv, const uchar *buf, int bufsize) +{ + int len = 0; + + if (cv->codepage == 54936) { + if (buf[0] <= 0x7F) len = 1; + else if (buf[0] >= 0x81 && buf[0] <= 0xFE && + bufsize >= 2 && + ((buf[1] >= 0x40 && buf[1] <= 0x7E) || + (buf[1] >= 0x80 && buf[1] <= 0xFE))) len = 2; + else if (buf[0] >= 0x81 && buf[0] <= 0xFE && + bufsize >= 4 && + buf[1] >= 0x30 && buf[1] <= 0x39) len = 4; + else + return seterror(EINVAL); + return len; + } + else + return seterror(EINVAL); +} + +static int +utf8_mblen(csconv_t *cv, const uchar *buf, int bufsize) +{ + int len = 0; + + (void) cv; + + if (buf[0] < 0x80) len = 1; + else if ((buf[0] & 0xE0) == 0xC0) len = 2; + else if ((buf[0] & 0xF0) == 0xE0) len = 3; + else if ((buf[0] & 0xF8) == 0xF0) len = 4; + else if ((buf[0] & 0xFC) == 0xF8) len = 5; + else if ((buf[0] & 0xFE) == 0xFC) len = 6; + + if (len == 0) + return seterror(EILSEQ); + else if (bufsize < len) + return seterror(EINVAL); + return len; +} + +#if USE_MLANG_DLL +static int +eucjp_mblen(csconv_t *cv, const uchar *buf, int bufsize) +{ + (void) cv; + + if (buf[0] < 0x80) /* ASCII */ + return 1; + else if (buf[0] == 0x8E) /* JIS X 0201 */ + { + if (bufsize < 2) + return seterror(EINVAL); + else if (!(0xA1 <= buf[1] && buf[1] <= 0xDF)) + return seterror(EILSEQ); + return 2; + } + else if (buf[0] == 0x8F) /* JIS X 0212 */ + { + if (bufsize < 3) + return seterror(EINVAL); + else if (!(0xA1 <= buf[1] && buf[1] <= 0xFE) + || !(0xA1 <= buf[2] && buf[2] <= 0xFE)) + return seterror(EILSEQ); + return 3; + } + else /* JIS X 0208 */ + { + if (bufsize < 2) + return seterror(EINVAL); + else if (!(0xA1 <= buf[0] && buf[0] <= 0xFE) + || !(0xA1 <= buf[1] && buf[1] <= 0xFE)) + return seterror(EILSEQ); + return 2; + } +} +#endif /*USE_MLANG_DLL*/ + +static int +kernel_mbtowc(csconv_t *cv, const uchar *buf, int bufsize, ushort *wbuf, int *wbufsize) +{ + int len; + + len = cv->mblen(cv, buf, bufsize); + if (len == -1) + return -1; + /* If converting from ASCII, reject 8bit + * chars. MultiByteToWideChar() doesn't. Note that for ASCII we + * know that the mblen function is sbcs_mblen() so len is 1. + */ + if (cv->codepage == 20127 && buf[0] >= 0x80) + return seterror(EILSEQ); + *wbufsize = MultiByteToWideChar(cv->codepage, mbtowc_flags (cv->codepage), + (const char *)buf, len, (wchar_t *)wbuf, *wbufsize); + if (*wbufsize == 0) + return seterror(EILSEQ); + return len; +} + +static int +kernel_wctomb(csconv_t *cv, ushort *wbuf, int wbufsize, uchar *buf, int bufsize) +{ + BOOL usedDefaultChar = 0; + BOOL *p = NULL; + int flags = 0; + int len; + + if (bufsize == 0) + return seterror(E2BIG); + if (!must_use_null_useddefaultchar(cv->codepage)) + { + p = &usedDefaultChar; +#ifdef WC_NO_BEST_FIT_CHARS + if (!(cv->flags & FLAG_TRANSLIT)) + flags |= WC_NO_BEST_FIT_CHARS; +#endif + } + len = WideCharToMultiByte(cv->codepage, flags, + (const wchar_t *)wbuf, wbufsize, (char *)buf, bufsize, NULL, p); + if (len == 0) + { + if (GetLastError() == ERROR_INSUFFICIENT_BUFFER) + return seterror(E2BIG); + return seterror(EILSEQ); + } + else if (usedDefaultChar && !(cv->flags & FLAG_TRANSLIT)) + return seterror(EILSEQ); + else if (cv->mblen(cv, buf, len) != len) /* validate result */ + return seterror(EILSEQ); + return len; +} + +/* + * It seems that the mode (cv->mode) is fixnum. + * For example, when converting iso-2022-jp(cp50221) to unicode: + * in ascii sequence: mode=0xC42C0000 + * in jisx0208 sequence: mode=0xC42C0001 + * "C42C" is same for each convert session. + * It should be: ((codepage-1)<<16)|state + */ +#if USE_MLANG_DLL +static int +mlang_mbtowc(csconv_t *cv, const uchar *buf, int bufsize, ushort *wbuf, int *wbufsize) +{ + int len; + int insize; + HRESULT hr; + + len = cv->mblen(cv, buf, bufsize); + if (len == -1) + return -1; + insize = len; + hr = ConvertINetMultiByteToUnicode(&cv->mode, cv->codepage, + (const char *)buf, &insize, (wchar_t *)wbuf, wbufsize); + if (hr != S_OK || insize != len) + return seterror(EILSEQ); + return len; +} + +static int +mlang_wctomb(csconv_t *cv, ushort *wbuf, int wbufsize, uchar *buf, int bufsize) +{ + char tmpbuf[MB_CHAR_MAX]; /* enough room for one character */ + int tmpsize = MB_CHAR_MAX; + int insize = wbufsize; + HRESULT hr; + + hr = ConvertINetUnicodeToMultiByte(&cv->mode, cv->codepage, + (const wchar_t *)wbuf, &wbufsize, tmpbuf, &tmpsize); + if (hr != S_OK || insize != wbufsize) + return seterror(EILSEQ); + else if (bufsize < tmpsize) + return seterror(E2BIG); + else if (cv->mblen(cv, (uchar *)tmpbuf, tmpsize) != tmpsize) + return seterror(EILSEQ); + memcpy(buf, tmpbuf, tmpsize); + return tmpsize; +} +#endif /*USE_MLANG_DLL*/ + +static int +utf16_mbtowc(csconv_t *cv, const uchar *buf, int bufsize, ushort *wbuf, int *wbufsize) +{ + int codepage = cv->codepage; + + /* swap endian: 1200 <-> 1201 */ + if (cv->mode & UNICODE_MODE_SWAPPED) + codepage ^= 1; + + if (bufsize < 2) + return seterror(EINVAL); + if (codepage == 1200) /* little endian */ + wbuf[0] = (buf[1] << 8) | buf[0]; + else if (codepage == 1201) /* big endian */ + wbuf[0] = (buf[0] << 8) | buf[1]; + + if ((cv->flags & FLAG_USE_BOM) && !(cv->mode & UNICODE_MODE_BOM_DONE)) + { + cv->mode |= UNICODE_MODE_BOM_DONE; + if (wbuf[0] == 0xFFFE) + { + cv->mode |= UNICODE_MODE_SWAPPED; + *wbufsize = 0; + return 2; + } + else if (wbuf[0] == 0xFEFF) + { + *wbufsize = 0; + return 2; + } + } + + if (0xDC00 <= wbuf[0] && wbuf[0] <= 0xDFFF) + return seterror(EILSEQ); + if (0xD800 <= wbuf[0] && wbuf[0] <= 0xDBFF) + { + if (bufsize < 4) + return seterror(EINVAL); + if (codepage == 1200) /* little endian */ + wbuf[1] = (buf[3] << 8) | buf[2]; + else if (codepage == 1201) /* big endian */ + wbuf[1] = (buf[2] << 8) | buf[3]; + if (!(0xDC00 <= wbuf[1] && wbuf[1] <= 0xDFFF)) + return seterror(EILSEQ); + *wbufsize = 2; + return 4; + } + *wbufsize = 1; + return 2; +} + +static int +utf16_wctomb(csconv_t *cv, ushort *wbuf, int wbufsize, uchar *buf, int bufsize) +{ + if ((cv->flags & FLAG_USE_BOM) && !(cv->mode & UNICODE_MODE_BOM_DONE)) + { + int r; + + cv->mode |= UNICODE_MODE_BOM_DONE; + if (bufsize < 2) + return seterror(E2BIG); + if (cv->codepage == 1200) /* little endian */ + memcpy(buf, "\xFF\xFE", 2); + else if (cv->codepage == 1201) /* big endian */ + memcpy(buf, "\xFE\xFF", 2); + + r = utf16_wctomb(cv, wbuf, wbufsize, buf + 2, bufsize - 2); + if (r == -1) + return -1; + return r + 2; + } + + if (bufsize < 2) + return seterror(E2BIG); + if (cv->codepage == 1200) /* little endian */ + { + buf[0] = (wbuf[0] & 0x00FF); + buf[1] = (wbuf[0] & 0xFF00) >> 8; + } + else if (cv->codepage == 1201) /* big endian */ + { + buf[0] = (wbuf[0] & 0xFF00) >> 8; + buf[1] = (wbuf[0] & 0x00FF); + } + if (0xD800 <= wbuf[0] && wbuf[0] <= 0xDBFF) + { + if (bufsize < 4) + return seterror(E2BIG); + if (cv->codepage == 1200) /* little endian */ + { + buf[2] = (wbuf[1] & 0x00FF); + buf[3] = (wbuf[1] & 0xFF00) >> 8; + } + else if (cv->codepage == 1201) /* big endian */ + { + buf[2] = (wbuf[1] & 0xFF00) >> 8; + buf[3] = (wbuf[1] & 0x00FF); + } + return 4; + } + return 2; +} + +static int +utf32_mbtowc(csconv_t *cv, const uchar *buf, int bufsize, ushort *wbuf, int *wbufsize) +{ + int codepage = cv->codepage; + uint wc = 0xD800; + + /* swap endian: 12000 <-> 12001 */ + if (cv->mode & UNICODE_MODE_SWAPPED) + codepage ^= 1; + + if (bufsize < 4) + return seterror(EINVAL); + if (codepage == 12000) /* little endian */ + wc = (buf[3] << 24) | (buf[2] << 16) | (buf[1] << 8) | buf[0]; + else if (codepage == 12001) /* big endian */ + wc = (buf[0] << 24) | (buf[1] << 16) | (buf[2] << 8) | buf[3]; + + if ((cv->flags & FLAG_USE_BOM) && !(cv->mode & UNICODE_MODE_BOM_DONE)) + { + cv->mode |= UNICODE_MODE_BOM_DONE; + if (wc == 0xFFFE0000) + { + cv->mode |= UNICODE_MODE_SWAPPED; + *wbufsize = 0; + return 4; + } + else if (wc == 0x0000FEFF) + { + *wbufsize = 0; + return 4; + } + } + + if ((0xD800 <= wc && wc <= 0xDFFF) || 0x10FFFF < wc) + return seterror(EILSEQ); + ucs4_to_utf16(wc, wbuf, wbufsize); + return 4; +} + +static int +utf32_wctomb(csconv_t *cv, ushort *wbuf, int wbufsize, uchar *buf, int bufsize) +{ + uint wc; + + if ((cv->flags & FLAG_USE_BOM) && !(cv->mode & UNICODE_MODE_BOM_DONE)) + { + int r; + + cv->mode |= UNICODE_MODE_BOM_DONE; + if (bufsize < 4) + return seterror(E2BIG); + if (cv->codepage == 12000) /* little endian */ + memcpy(buf, "\xFF\xFE\x00\x00", 4); + else if (cv->codepage == 12001) /* big endian */ + memcpy(buf, "\x00\x00\xFE\xFF", 4); + + r = utf32_wctomb(cv, wbuf, wbufsize, buf + 4, bufsize - 4); + if (r == -1) + return -1; + return r + 4; + } + + if (bufsize < 4) + return seterror(E2BIG); + wc = utf16_to_ucs4(wbuf); + if (cv->codepage == 12000) /* little endian */ + { + buf[0] = wc & 0x000000FF; + buf[1] = (wc & 0x0000FF00) >> 8; + buf[2] = (wc & 0x00FF0000) >> 16; + buf[3] = (wc & 0xFF000000) >> 24; + } + else if (cv->codepage == 12001) /* big endian */ + { + buf[0] = (wc & 0xFF000000) >> 24; + buf[1] = (wc & 0x00FF0000) >> 16; + buf[2] = (wc & 0x0000FF00) >> 8; + buf[3] = wc & 0x000000FF; + } + return 4; +} + +/* + * 50220: ISO 2022 Japanese with no halfwidth Katakana; Japanese (JIS) + * 50221: ISO 2022 Japanese with halfwidth Katakana; Japanese (JIS-Allow + * 1 byte Kana) + * 50222: ISO 2022 Japanese JIS X 0201-1989; Japanese (JIS-Allow 1 byte + * Kana - SO/SI) + * + * MultiByteToWideChar() and WideCharToMultiByte() behave differently + * depending on Windows version. On XP, WideCharToMultiByte() doesn't + * terminate result sequence with ascii escape. But Vista does. + * Use MLang instead. + */ + +#define ISO2022_MODE(cs, shift) (((cs) << 8) | (shift)) +#define ISO2022_MODE_CS(mode) (((mode) >> 8) & 0xFF) +#define ISO2022_MODE_SHIFT(mode) ((mode) & 0xFF) + +#define ISO2022_SI 0 +#define ISO2022_SO 1 + +#if USE_MLANG_DLL +/* shift in */ +static const char iso2022_SI_seq[] = "\x0F"; +/* shift out */ +static const char iso2022_SO_seq[] = "\x0E"; + +typedef struct iso2022_esc_t iso2022_esc_t; +struct iso2022_esc_t { + const char *esc; + int esc_len; + int len; + int cs; +}; +#endif + +#define ISO2022JP_CS_ASCII 0 +#define ISO2022JP_CS_JISX0201_ROMAN 1 +#define ISO2022JP_CS_JISX0201_KANA 2 +#define ISO2022JP_CS_JISX0208_1978 3 +#define ISO2022JP_CS_JISX0208_1983 4 +#define ISO2022JP_CS_JISX0212 5 + +#if USE_MLANG_DLL +static iso2022_esc_t iso2022jp_esc[] = { + {"\x1B\x28\x42", 3, 1, ISO2022JP_CS_ASCII}, + {"\x1B\x28\x4A", 3, 1, ISO2022JP_CS_JISX0201_ROMAN}, + {"\x1B\x28\x49", 3, 1, ISO2022JP_CS_JISX0201_KANA}, + {"\x1B\x24\x40", 3, 2, ISO2022JP_CS_JISX0208_1983}, /* unify 1978 with 1983 */ + {"\x1B\x24\x42", 3, 2, ISO2022JP_CS_JISX0208_1983}, + {"\x1B\x24\x28\x44", 4, 2, ISO2022JP_CS_JISX0212}, + {NULL, 0, 0, 0} +}; +#endif /*USE_MLANG_DLL*/ + +#if USE_MLANG_DLL +static int +iso2022jp_mbtowc(csconv_t *cv, const uchar *buf, int bufsize, + ushort *wbuf, int *wbufsize) +{ + iso2022_esc_t *iesc = iso2022jp_esc; + char tmp[MB_CHAR_MAX]; + int insize; + HRESULT hr; + DWORD dummy = 0; + int len; + int esc_len; + int cs; + int shift; + int i; + + if (buf[0] == 0x1B) + { + for (i = 0; iesc[i].esc != NULL; ++i) + { + esc_len = iesc[i].esc_len; + if (bufsize < esc_len) + { + if (strncmp((char *)buf, iesc[i].esc, bufsize) == 0) + return seterror(EINVAL); + } + else + { + if (strncmp((char *)buf, iesc[i].esc, esc_len) == 0) + { + cv->mode = ISO2022_MODE(iesc[i].cs, ISO2022_SI); + *wbufsize = 0; + return esc_len; + } + } + } + /* not supported escape sequence */ + return seterror(EILSEQ); + } + else if (buf[0] == iso2022_SO_seq[0]) + { + cv->mode = ISO2022_MODE(ISO2022_MODE_CS(cv->mode), ISO2022_SO); + *wbufsize = 0; + return 1; + } + else if (buf[0] == iso2022_SI_seq[0]) + { + cv->mode = ISO2022_MODE(ISO2022_MODE_CS(cv->mode), ISO2022_SI); + *wbufsize = 0; + return 1; + } + + cs = ISO2022_MODE_CS(cv->mode); + shift = ISO2022_MODE_SHIFT(cv->mode); + + /* reset the mode for informal sequence */ + if (buf[0] < 0x20) + { + cs = ISO2022JP_CS_ASCII; + shift = ISO2022_SI; + } + + len = iesc[cs].len; + if (bufsize < len) + return seterror(EINVAL); + for (i = 0; i < len; ++i) + if (!(buf[i] < 0x80)) + return seterror(EILSEQ); + esc_len = iesc[cs].esc_len; + memcpy(tmp, iesc[cs].esc, esc_len); + if (shift == ISO2022_SO) + { + memcpy(tmp + esc_len, iso2022_SO_seq, 1); + esc_len += 1; + } + memcpy(tmp + esc_len, buf, len); + + if ((cv->codepage == 50220 || cv->codepage == 50221 + || cv->codepage == 50222) && shift == ISO2022_SO) + { + /* XXX: shift-out cannot be used for mbtowc (both kernel and + * mlang) */ + esc_len = iesc[ISO2022JP_CS_JISX0201_KANA].esc_len; + memcpy(tmp, iesc[ISO2022JP_CS_JISX0201_KANA].esc, esc_len); + memcpy(tmp + esc_len, buf, len); + } + + insize = len + esc_len; + hr = ConvertINetMultiByteToUnicode(&dummy, cv->codepage, + (const char *)tmp, &insize, (wchar_t *)wbuf, wbufsize); + if (hr != S_OK || insize != len + esc_len) + return seterror(EILSEQ); + + /* Check for conversion error. Assuming defaultChar is 0x3F. */ + /* ascii should be converted from ascii */ + if (wbuf[0] == buf[0] + && cv->mode != ISO2022_MODE(ISO2022JP_CS_ASCII, ISO2022_SI)) + return seterror(EILSEQ); + + /* reset the mode for informal sequence */ + if (cv->mode != ISO2022_MODE(cs, shift)) + cv->mode = ISO2022_MODE(cs, shift); + + return len; +} +#endif /*USE_MLANG_DLL*/ + + +#if USE_MLANG_DLL +static int +iso2022jp_wctomb(csconv_t *cv, ushort *wbuf, int wbufsize, uchar *buf, int bufsize) +{ + iso2022_esc_t *iesc = iso2022jp_esc; + char tmp[MB_CHAR_MAX]; + int tmpsize = MB_CHAR_MAX; + int insize = wbufsize; + HRESULT hr; + DWORD dummy = 0; + int len; + int esc_len; + int cs; + int shift; + int i; + + /* + * MultiByte = [escape sequence] + character + [escape sequence] + * + * Whether trailing escape sequence is added depends on which API is + * used (kernel or MLang, and its version). + */ + hr = ConvertINetUnicodeToMultiByte(&dummy, cv->codepage, + (const wchar_t *)wbuf, &wbufsize, tmp, &tmpsize); + if (hr != S_OK || insize != wbufsize) + return seterror(EILSEQ); + else if (bufsize < tmpsize) + return seterror(E2BIG); + + if (tmpsize == 1) + { + cs = ISO2022JP_CS_ASCII; + esc_len = 0; + } + else + { + for (i = 1; iesc[i].esc != NULL; ++i) + { + esc_len = iesc[i].esc_len; + if (strncmp(tmp, iesc[i].esc, esc_len) == 0) + { + cs = iesc[i].cs; + break; + } + } + if (iesc[i].esc == NULL) + /* not supported escape sequence */ + return seterror(EILSEQ); + } + + shift = ISO2022_SI; + if (tmp[esc_len] == iso2022_SO_seq[0]) + { + shift = ISO2022_SO; + esc_len += 1; + } + + len = iesc[cs].len; + + /* Check for converting error. Assuming defaultChar is 0x3F. */ + /* ascii should be converted from ascii */ + if (cs == ISO2022JP_CS_ASCII && !(wbuf[0] < 0x80)) + return seterror(EILSEQ); + else if (tmpsize < esc_len + len) + return seterror(EILSEQ); + + if (cv->mode == ISO2022_MODE(cs, shift)) + { + /* remove escape sequence */ + if (esc_len != 0) + memmove(tmp, tmp + esc_len, len); + esc_len = 0; + } + else + { + if (cs == ISO2022JP_CS_ASCII) + { + esc_len = iesc[ISO2022JP_CS_ASCII].esc_len; + memmove(tmp + esc_len, tmp, len); + memcpy(tmp, iesc[ISO2022JP_CS_ASCII].esc, esc_len); + } + if (ISO2022_MODE_SHIFT(cv->mode) == ISO2022_SO) + { + /* shift-in before changing to other mode */ + memmove(tmp + 1, tmp, len + esc_len); + memcpy(tmp, iso2022_SI_seq, 1); + esc_len += 1; + } + } + + if (bufsize < len + esc_len) + return seterror(E2BIG); + memcpy(buf, tmp, len + esc_len); + cv->mode = ISO2022_MODE(cs, shift); + return len + esc_len; +} +#endif /*USE_MLANG_DLL*/ + +#if USE_MLANG_DLL +static int +iso2022jp_flush(csconv_t *cv, uchar *buf, int bufsize) +{ + iso2022_esc_t *iesc = iso2022jp_esc; + int esc_len; + + if (cv->mode != ISO2022_MODE(ISO2022JP_CS_ASCII, ISO2022_SI)) + { + esc_len = 0; + if (ISO2022_MODE_SHIFT(cv->mode) != ISO2022_SI) + esc_len += 1; + if (ISO2022_MODE_CS(cv->mode) != ISO2022JP_CS_ASCII) + esc_len += iesc[ISO2022JP_CS_ASCII].esc_len; + if (bufsize < esc_len) + return seterror(E2BIG); + + esc_len = 0; + if (ISO2022_MODE_SHIFT(cv->mode) != ISO2022_SI) + { + memcpy(buf, iso2022_SI_seq, 1); + esc_len += 1; + } + if (ISO2022_MODE_CS(cv->mode) != ISO2022JP_CS_ASCII) + { + memcpy(buf + esc_len, iesc[ISO2022JP_CS_ASCII].esc, + iesc[ISO2022JP_CS_ASCII].esc_len); + esc_len += iesc[ISO2022JP_CS_ASCII].esc_len; + } + return esc_len; + } + return 0; +} +#endif /*USE_MLANG_DLL*/ + + +gpgrt_w32_iconv_t +gpgrt_w32_iconv_open (const char *tocode, const char *fromcode) +{ + gpgrt_w32_iconv_t cd; + + cd = calloc(1, sizeof *cd); + if (!cd) + return (gpgrt_w32_iconv_t)(-1); + + /* reset the errno to prevent reporting wrong error code. + * 0 for unsorted error. */ + _gpg_err_set_errno (0); + if (win_iconv_open(cd, tocode, fromcode)) + return cd; + + free(cd); + + return (gpgrt_w32_iconv_t)(-1); +} + +int +gpgrt_w32_iconv_close (gpgrt_w32_iconv_t cd) +{ + if (cd) + { + free (cd); + } + + return 0; +} + +size_t +gpgrt_w32_iconv (gpgrt_w32_iconv_t cd, + const char **inbuf, size_t *inbytesleft, + char **outbuf, size_t *outbytesleft) +{ + size_t r; + + r = win_iconv (cd, inbuf, inbytesleft, outbuf, outbytesleft); + _gpg_err_set_errno (*(cd->_errno())); + return r; +} |