/* * Windows 1258 codepage (Vietnamese) functions * * Copyright (C) 2008-2023, Joachim Metz * * Refer to AUTHORS for acknowledgements. * * This program 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 3 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 Lesser General Public License * along with this program. If not, see . */ #include #include #include "libuna_codepage_windows_1258.h" #include "libuna_libcerror.h" #include "libuna_types.h" /* Extended ASCII to Unicode character lookup table for the Windows 1258 codepage * Unknown are filled with the Unicode replacement character 0xfffd */ const uint16_t libuna_codepage_windows_1258_byte_stream_to_unicode_base_0x80[ 128 ] = { 0x20ac, 0xfffd, 0x201a, 0x0192, 0x201e, 0x2026, 0x2020, 0x2021, 0x02c6, 0x2030, 0xfffd, 0x2039, 0x0152, 0xfffd, 0xfffd, 0xfffd, 0xfffd, 0x2018, 0x2019, 0x201c, 0x201d, 0x2022, 0x2013, 0x2014, 0x02dc, 0x2122, 0xfffd, 0x203a, 0x0153, 0xfffd, 0xfffd, 0x0178, 0x00a0, 0x00a1, 0x00a2, 0x00a3, 0x00a4, 0x00a5, 0x00a6, 0x00a7, 0x00a8, 0x00a9, 0x00aa, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0x00af, 0x00b0, 0x00b1, 0x00b2, 0x00b3, 0x00b4, 0x00b5, 0x00b6, 0x00b7, 0x00b8, 0x00b9, 0x00ba, 0x00bb, 0x00bc, 0x00bd, 0x00be, 0x00bf, 0x00c0, 0x00c1, 0x00c2, 0x0102, 0x00c4, 0x00c5, 0x00c6, 0x00c7, 0x00c8, 0x00c9, 0x00ca, 0x00cb, 0x0300, 0x00cd, 0x00ce, 0x00cf, 0x0110, 0x00d1, 0x0309, 0x00d3, 0x00d4, 0x01a0, 0x00d6, 0x00d7, 0x00d8, 0x00d9, 0x00da, 0x00db, 0x00dc, 0x01af, 0x0303, 0x00df, 0x00e0, 0x00e1, 0x00e2, 0x0103, 0x00e4, 0x00e5, 0x00e6, 0x00e7, 0x00e8, 0x00e9, 0x00ea, 0x00eb, 0x0301, 0x00ed, 0x00ee, 0x00ef, 0x0111, 0x00f1, 0x0323, 0x00f3, 0x00f4, 0x01a1, 0x00f6, 0x00f7, 0x00f8, 0x00f9, 0x00fa, 0x00fb, 0x00fc, 0x01b0, 0x20ab, 0x00ff }; /* Unicode to ASCII character lookup tables for the Windows 1258 codepage * Unknown are filled with the ASCII replacement character 0x1a */ const uint8_t libuna_codepage_windows_1258_unicode_to_byte_stream_base_0x00c0[ 72 ] = { 0xc0, 0xc1, 0xc2, 0x1a, 0xc4, 0xc5, 0xc6, 0xc7, 0xc8, 0xc9, 0xca, 0xcb, 0x1a, 0xcd, 0xce, 0xcf, 0x1a, 0xd1, 0x1a, 0xd3, 0xd4, 0x1a, 0xd6, 0xd7, 0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0x1a, 0x1a, 0xdf, 0xe0, 0xe1, 0xe2, 0x1a, 0xe4, 0xe5, 0xe6, 0xe7, 0xe8, 0xe9, 0xea, 0xeb, 0x1a, 0xed, 0xee, 0xef, 0x1a, 0xf1, 0x1a, 0xf3, 0xf4, 0x1a, 0xf6, 0xf7, 0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0x1a, 0x1a, 0xff, 0x1a, 0x1a, 0xc3, 0xe3, 0x1a, 0x1a, 0x1a, 0x1a }; const uint8_t libuna_codepage_windows_1258_unicode_to_byte_stream_base_0x2010[ 24 ] = { 0x1a, 0x1a, 0x1a, 0x96, 0x97, 0x1a, 0x1a, 0x1a, 0x91, 0x92, 0x82, 0x1a, 0x93, 0x94, 0x84, 0x1a, 0x86, 0x87, 0x95, 0x1a, 0x1a, 0x1a, 0x85, 0x1a }; /* Copies an Unicode character from a Windows 1258 encoded byte stream * Returns 1 if successful or -1 on error */ int libuna_codepage_windows_1258_copy_from_byte_stream( libuna_unicode_character_t *unicode_character, const uint8_t *byte_stream, size_t byte_stream_size, size_t *byte_stream_index, libcerror_error_t **error ) { static char *function = "libuna_codepage_windows_1258_copy_from_byte_stream"; libuna_unicode_character_t safe_unicode_character = 0xfffd; size_t safe_byte_stream_index = 0; uint8_t byte_stream_character = 0; if( unicode_character == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid Unicode character.", function ); return( -1 ); } if( byte_stream == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid byte stream.", function ); return( -1 ); } if( byte_stream_size > (size_t) SSIZE_MAX ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, "%s: invalid byte stream size value exceeds maximum.", function ); return( -1 ); } if( byte_stream_index == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid byte stream index.", function ); return( -1 ); } safe_byte_stream_index = *byte_stream_index; if( safe_byte_stream_index >= byte_stream_size ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL, "%s: byte stream too small.", function ); return( -1 ); } byte_stream_character = byte_stream[ safe_byte_stream_index++ ]; if( byte_stream_character < 0x80 ) { safe_unicode_character = byte_stream_character; } else { byte_stream_character -= 0x80; safe_unicode_character = libuna_codepage_windows_1258_byte_stream_to_unicode_base_0x80[ byte_stream_character ]; } *unicode_character = safe_unicode_character; *byte_stream_index = safe_byte_stream_index; return( 1 ); } /* Copies an Unicode character to a Windows 1258 encoded byte stream * Returns 1 if successful or -1 on error */ int libuna_codepage_windows_1258_copy_to_byte_stream( libuna_unicode_character_t unicode_character, uint8_t *byte_stream, size_t byte_stream_size, size_t *byte_stream_index, libcerror_error_t **error ) { static char *function = "libuna_codepage_windows_1258_copy_to_byte_stream"; size_t safe_byte_stream_index = 0; uint16_t byte_stream_value = 0x001a; if( byte_stream == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid byte stream.", function ); return( -1 ); } if( byte_stream_size > (size_t) SSIZE_MAX ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, "%s: invalid byte stream size value exceeds maximum.", function ); return( -1 ); } if( byte_stream_index == NULL ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, "%s: invalid byte stream index.", function ); return( -1 ); } safe_byte_stream_index = *byte_stream_index; if( safe_byte_stream_index >= byte_stream_size ) { libcerror_error_set( error, LIBCERROR_ERROR_DOMAIN_ARGUMENTS, LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL, "%s: byte stream too small.", function ); return( -1 ); } if( unicode_character < 0x0080 ) { byte_stream_value = (uint16_t) unicode_character; } else if( ( unicode_character >= 0x00a0 ) && ( unicode_character < 0x00c0 ) ) { byte_stream_value = (uint16_t) unicode_character; } else if( ( unicode_character >= 0x00c0 ) && ( unicode_character < 0x0108 ) ) { unicode_character -= 0x00c0; byte_stream_value = libuna_codepage_windows_1258_unicode_to_byte_stream_base_0x00c0[ unicode_character ]; } else if( ( unicode_character >= 0x2010 ) && ( unicode_character < 0x2028 ) ) { unicode_character -= 0x2010; byte_stream_value = libuna_codepage_windows_1258_unicode_to_byte_stream_base_0x2010[ unicode_character ]; } else switch( unicode_character ) { case 0x0110: byte_stream_value = 0xd0; break; case 0x0111: byte_stream_value = 0xf0; break; case 0x0152: byte_stream_value = 0x8c; break; case 0x0153: byte_stream_value = 0x9c; break; case 0x0178: byte_stream_value = 0x9f; break; case 0x0192: byte_stream_value = 0x83; break; case 0x01a0: byte_stream_value = 0xd5; break; case 0x01a1: byte_stream_value = 0xf5; break; case 0x01af: byte_stream_value = 0xdd; break; case 0x01b0: byte_stream_value = 0xfd; break; case 0x02c6: byte_stream_value = 0x88; break; case 0x02dc: byte_stream_value = 0x98; break; case 0x0300: byte_stream_value = 0xcc; break; case 0x0301: byte_stream_value = 0xec; break; case 0x0303: byte_stream_value = 0xde; break; case 0x0309: byte_stream_value = 0xd2; break; case 0x0323: byte_stream_value = 0xf2; break; case 0x2030: byte_stream_value = 0x89; break; case 0x2039: byte_stream_value = 0x8b; break; case 0x203a: byte_stream_value = 0x9b; break; case 0x20ab: byte_stream_value = 0xfe; break; case 0x20ac: byte_stream_value = 0x80; break; case 0x2122: byte_stream_value = 0x99; break; default: byte_stream_value = 0x1a; break; } byte_stream[ safe_byte_stream_index++ ] = (uint8_t) ( byte_stream_value & 0x00ff ); *byte_stream_index = safe_byte_stream_index; return( 1 ); }