Coverage Report

Created: 2024-02-25 07:20

/src/libfvde/libuna/libuna_codepage_mac_russian.c
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Source (jump to first uncovered line)
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/*
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 * MacRussian codepage functions
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 *
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 * Copyright (C) 2008-2024, Joachim Metz <joachim.metz@gmail.com>
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 *
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 * Refer to AUTHORS for acknowledgements.
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 *
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 * This program is free software: you can redistribute it and/or modify
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 * it under the terms of the GNU Lesser General Public License as published by
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 * the Free Software Foundation, either version 3 of the License, or
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 * (at your option) any later version.
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 *
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 * This program is distributed in the hope that it will be useful,
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 * but WITHOUT ANY WARRANTY; without even the implied warranty of
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 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
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 * GNU General Public License for more details.
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 *
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 * You should have received a copy of the GNU Lesser General Public License
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 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
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 */
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#include <common.h>
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#include <types.h>
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#include "libuna_codepage_mac_russian.h"
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#include "libuna_libcerror.h"
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#include "libuna_types.h"
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/* Extended ASCII to Unicode character lookup table for the MacRussian codepage
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 * Unknown are filled with the Unicode replacement character 0xfffd
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 */
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const uint16_t libuna_codepage_mac_russian_byte_stream_to_unicode_base_0x80[ 128 ] = {
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  0x0410, 0x0411, 0x0412, 0x0413, 0x0414, 0x0415, 0x0416, 0x0417,
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  0x0418, 0x0419, 0x041a, 0x041b, 0x041c, 0x041d, 0x041e, 0x041f,
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  0x0420, 0x0421, 0x0422, 0x0423, 0x0424, 0x0425, 0x0426, 0x0427,
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  0x0428, 0x0429, 0x042a, 0x042b, 0x042c, 0x042d, 0x042e, 0x042f,
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  0x2020, 0x00b0, 0x00a2, 0x00a3, 0x00a7, 0x2022, 0x00b6, 0x0406,
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  0x00ae, 0x00a9, 0x2122, 0x0402, 0x0452, 0x2260, 0x0403, 0x0453,
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  0x221e, 0x00b1, 0x2264, 0x2265, 0x0456, 0x00b5, 0x2202, 0x0408,
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  0x0404, 0x0454, 0x0407, 0x0457, 0x0409, 0x0459, 0x040a, 0x045a,
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  0x0458, 0x0405, 0x00ac, 0x221a, 0x0192, 0x2248, 0x2206, 0x00ab,
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  0x00bb, 0x2026, 0x00a0, 0x040b, 0x045b, 0x040c, 0x045c, 0x0455,
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  0x2013, 0x2014, 0x201c, 0x201d, 0x2018, 0x2019, 0x00f7, 0x201e,
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  0x040e, 0x045e, 0x040f, 0x045f, 0x2116, 0x0401, 0x0451, 0x044f,
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  0x0430, 0x0431, 0x0432, 0x0433, 0x0434, 0x0435, 0x0436, 0x0437,
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  0x0438, 0x0439, 0x043a, 0x043b, 0x043c, 0x043d, 0x043e, 0x043f,
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  0x0440, 0x0441, 0x0442, 0x0443, 0x0444, 0x0445, 0x0446, 0x0447,
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  0x0448, 0x0449, 0x044a, 0x044b, 0x044c, 0x044d, 0x044e, 0x00a4
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};
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/* Unicode to ASCII character lookup tables for the MacRussian codepage
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 * Unknown are filled with the ASCII replacement character 0x1a
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 */
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const uint8_t libuna_codepage_mac_russian_unicode_to_byte_stream_base_0x00a0[ 32 ] = {
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  0xca, 0x1a, 0xa2, 0xa3, 0xff, 0x1a, 0x1a, 0xa4,
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  0x1a, 0xa9, 0x1a, 0xc7, 0xc2, 0x1a, 0xa8, 0x1a,
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  0xa1, 0xb1, 0x1a, 0x1a, 0x1a, 0xb5, 0xa6, 0x1a,
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  0x1a, 0x1a, 0x1a, 0xc8, 0x1a, 0x1a, 0x1a, 0x1a
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};
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const uint8_t libuna_codepage_mac_russian_unicode_to_byte_stream_base_0x0400[ 96 ] = {
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  0x1a, 0xdd, 0xab, 0xae, 0xb8, 0xc1, 0xa7, 0xba,
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  0xb7, 0xbc, 0xbe, 0xcb, 0xcd, 0x1a, 0xd8, 0xda,
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  0x80, 0x81, 0x82, 0x83, 0x84, 0x85, 0x86, 0x87,
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  0x88, 0x89, 0x8a, 0x8b, 0x8c, 0x8d, 0x8e, 0x8f,
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  0x90, 0x91, 0x92, 0x93, 0x94, 0x95, 0x96, 0x97,
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  0x98, 0x99, 0x9a, 0x9b, 0x9c, 0x9d, 0x9e, 0x9f,
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  0xe0, 0xe1, 0xe2, 0xe3, 0xe4, 0xe5, 0xe6, 0xe7,
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  0xe8, 0xe9, 0xea, 0xeb, 0xec, 0xed, 0xee, 0xef,
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  0xf0, 0xf1, 0xf2, 0xf3, 0xf4, 0xf5, 0xf6, 0xf7,
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  0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0xfd, 0xfe, 0xdf,
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  0x1a, 0xde, 0xac, 0xaf, 0xb9, 0xcf, 0xb4, 0xbb,
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  0xc0, 0xbd, 0xbf, 0xcc, 0xce, 0x1a, 0xd9, 0xdb
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};
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const uint8_t libuna_codepage_mac_russian_unicode_to_byte_stream_base_0x2010[ 24 ] = {
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  0x1a, 0x1a, 0x1a, 0xd0, 0xd1, 0x1a, 0x1a, 0x1a,
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  0xd4, 0xd5, 0x1a, 0x1a, 0xd2, 0xd3, 0xd7, 0x1a,
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  0xa0, 0x1a, 0xa5, 0x1a, 0x1a, 0x1a, 0xc9, 0x1a
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};
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/* Copies an Unicode character from a MacRussian encoded byte stream
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 * Returns 1 if successful or -1 on error
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 */
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int libuna_codepage_mac_russian_copy_from_byte_stream(
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     libuna_unicode_character_t *unicode_character,
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     const uint8_t *byte_stream,
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     size_t byte_stream_size,
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     size_t *byte_stream_index,
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     libcerror_error_t **error )
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0
{
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0
  static char *function                             = "libuna_codepage_mac_russian_copy_from_byte_stream";
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0
  libuna_unicode_character_t safe_unicode_character = 0xfffd;
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0
  size_t safe_byte_stream_index                     = 0;
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0
  uint8_t byte_stream_character                     = 0;
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97
0
  if( unicode_character == NULL )
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0
  {
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0
    libcerror_error_set(
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0
     error,
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0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
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0
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
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0
     "%s: invalid Unicode character.",
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0
     function );
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0
    return( -1 );
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0
  }
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0
  if( byte_stream == NULL )
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0
  {
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0
    libcerror_error_set(
111
0
     error,
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0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
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0
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
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0
     "%s: invalid byte stream.",
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0
     function );
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117
0
    return( -1 );
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0
  }
119
0
  if( byte_stream_size > (size_t) SSIZE_MAX )
120
0
  {
121
0
    libcerror_error_set(
122
0
     error,
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0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
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0
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
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0
     "%s: invalid byte stream size value exceeds maximum.",
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0
     function );
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128
0
    return( -1 );
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0
  }
130
0
  if( byte_stream_index == NULL )
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0
  {
132
0
    libcerror_error_set(
133
0
     error,
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0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
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0
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
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0
     "%s: invalid byte stream index.",
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0
     function );
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0
    return( -1 );
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0
  }
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0
  safe_byte_stream_index = *byte_stream_index;
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143
0
  if( safe_byte_stream_index >= byte_stream_size )
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0
  {
145
0
    libcerror_error_set(
146
0
     error,
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0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
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0
     LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
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0
     "%s: byte stream too small.",
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0
     function );
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0
    return( -1 );
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0
  }
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0
  byte_stream_character = byte_stream[ safe_byte_stream_index++ ];
155
156
0
  if( byte_stream_character < 0x80 )
157
0
  {
158
0
    safe_unicode_character = byte_stream_character;
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0
  }
160
0
  else
161
0
  {
162
0
    byte_stream_character -= 0x80;
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164
0
    safe_unicode_character = libuna_codepage_mac_russian_byte_stream_to_unicode_base_0x80[ byte_stream_character ];
165
0
  }
166
0
  *unicode_character = safe_unicode_character;
167
0
  *byte_stream_index = safe_byte_stream_index;
168
169
0
  return( 1 );
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0
}
171
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/* Copies an Unicode character to a MacRussian encoded byte stream
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 * Returns 1 if successful or -1 on error
174
 */
175
int libuna_codepage_mac_russian_copy_to_byte_stream(
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     libuna_unicode_character_t unicode_character,
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     uint8_t *byte_stream,
178
     size_t byte_stream_size,
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     size_t *byte_stream_index,
180
     libcerror_error_t **error )
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0
{
182
0
  static char *function         = "libuna_codepage_mac_russian_copy_to_byte_stream";
183
0
  size_t safe_byte_stream_index = 0;
184
0
  uint16_t byte_stream_value    = 0x001a;
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186
0
  if( byte_stream == NULL )
187
0
  {
188
0
    libcerror_error_set(
189
0
     error,
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0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
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0
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
192
0
     "%s: invalid byte stream.",
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0
     function );
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0
    return( -1 );
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0
  }
197
0
  if( byte_stream_size > (size_t) SSIZE_MAX )
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0
  {
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0
    libcerror_error_set(
200
0
     error,
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0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
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0
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
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0
     "%s: invalid byte stream size value exceeds maximum.",
204
0
     function );
205
206
0
    return( -1 );
207
0
  }
208
0
  if( byte_stream_index == NULL )
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0
  {
210
0
    libcerror_error_set(
211
0
     error,
212
0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
213
0
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
214
0
     "%s: invalid byte stream index.",
215
0
     function );
216
217
0
    return( -1 );
218
0
  }
219
0
  safe_byte_stream_index = *byte_stream_index;
220
221
0
  if( safe_byte_stream_index >= byte_stream_size )
222
0
  {
223
0
    libcerror_error_set(
224
0
     error,
225
0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
226
0
     LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
227
0
     "%s: byte stream too small.",
228
0
     function );
229
230
0
    return( -1 );
231
0
  }
232
0
  if( unicode_character < 0x0080 )
233
0
  {
234
0
    byte_stream_value = (uint16_t) unicode_character;
235
0
  }
236
0
  else if( ( unicode_character >= 0x00a0 )
237
0
        && ( unicode_character < 0x00c0 ) )
238
0
  {
239
0
    unicode_character -= 0x00a0;
240
241
0
    byte_stream_value = libuna_codepage_mac_russian_unicode_to_byte_stream_base_0x00a0[ unicode_character ];
242
0
  }
243
0
  else if( ( unicode_character >= 0x0400 )
244
0
        && ( unicode_character < 0x0460 ) )
245
0
  {
246
0
    unicode_character -= 0x0400;
247
248
0
    byte_stream_value = libuna_codepage_mac_russian_unicode_to_byte_stream_base_0x0400[ unicode_character ];
249
0
  }
250
0
  else if( ( unicode_character >= 0x2010 )
251
0
        && ( unicode_character < 0x2028 ) )
252
0
  {
253
0
    unicode_character -= 0x2010;
254
255
0
    byte_stream_value = libuna_codepage_mac_russian_unicode_to_byte_stream_base_0x2010[ unicode_character ];
256
0
  }
257
0
  else switch( unicode_character )
258
0
  {
259
0
    case 0x00f7:
260
0
      byte_stream_value = 0xd6;
261
0
      break;
262
263
0
    case 0x0192:
264
0
      byte_stream_value = 0xc4;
265
0
      break;
266
267
0
    case 0x2116:
268
0
      byte_stream_value = 0xdc;
269
0
      break;
270
271
0
    case 0x2122:
272
0
      byte_stream_value = 0xaa;
273
0
      break;
274
275
0
    case 0x2202:
276
0
      byte_stream_value = 0xb6;
277
0
      break;
278
279
0
    case 0x2206:
280
0
      byte_stream_value = 0xc6;
281
0
      break;
282
283
0
    case 0x221a:
284
0
      byte_stream_value = 0xc3;
285
0
      break;
286
287
0
    case 0x221e:
288
0
      byte_stream_value = 0xb0;
289
0
      break;
290
291
0
    case 0x2248:
292
0
      byte_stream_value = 0xc5;
293
0
      break;
294
295
0
    case 0x2260:
296
0
      byte_stream_value = 0xad;
297
0
      break;
298
299
0
    case 0x2264:
300
0
      byte_stream_value = 0xb2;
301
0
      break;
302
303
0
    case 0x2265:
304
0
      byte_stream_value = 0xb3;
305
0
      break;
306
307
0
    default:
308
0
      byte_stream_value = 0x1a;
309
0
      break;
310
0
  }
311
0
  byte_stream[ safe_byte_stream_index++ ] = (uint8_t) ( byte_stream_value & 0x00ff );
312
313
0
  *byte_stream_index = safe_byte_stream_index;
314
315
0
  return( 1 );
316
0
}
317