Coverage Report

Created: 2024-02-25 07:20

/src/libfwevt/libuna/libuna_codepage_windows_1258.c
Line
Count
Source (jump to first uncovered line)
1
/*
2
 * Windows 1258 codepage (Vietnamese) functions
3
 *
4
 * Copyright (C) 2008-2024, Joachim Metz <joachim.metz@gmail.com>
5
 *
6
 * Refer to AUTHORS for acknowledgements.
7
 *
8
 * This program is free software: you can redistribute it and/or modify
9
 * it under the terms of the GNU Lesser General Public License as published by
10
 * the Free Software Foundation, either version 3 of the License, or
11
 * (at your option) any later version.
12
 *
13
 * This program is distributed in the hope that it will be useful,
14
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
15
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
16
 * GNU General Public License for more details.
17
 *
18
 * You should have received a copy of the GNU Lesser General Public License
19
 * along with this program.  If not, see <https://www.gnu.org/licenses/>.
20
 */
21
22
#include <common.h>
23
#include <types.h>
24
25
#include "libuna_codepage_windows_1258.h"
26
#include "libuna_libcerror.h"
27
#include "libuna_types.h"
28
29
/* Extended ASCII to Unicode character lookup table for the Windows 1258 codepage
30
 * Unknown are filled with the Unicode replacement character 0xfffd
31
 */
32
const uint16_t libuna_codepage_windows_1258_byte_stream_to_unicode_base_0x80[ 128 ] = {
33
  0x20ac, 0xfffd, 0x201a, 0x0192, 0x201e, 0x2026, 0x2020, 0x2021,
34
  0x02c6, 0x2030, 0xfffd, 0x2039, 0x0152, 0xfffd, 0xfffd, 0xfffd,
35
  0xfffd, 0x2018, 0x2019, 0x201c, 0x201d, 0x2022, 0x2013, 0x2014,
36
  0x02dc, 0x2122, 0xfffd, 0x203a, 0x0153, 0xfffd, 0xfffd, 0x0178,
37
  0x00a0, 0x00a1, 0x00a2, 0x00a3, 0x00a4, 0x00a5, 0x00a6, 0x00a7,
38
  0x00a8, 0x00a9, 0x00aa, 0x00ab, 0x00ac, 0x00ad, 0x00ae, 0x00af,
39
  0x00b0, 0x00b1, 0x00b2, 0x00b3, 0x00b4, 0x00b5, 0x00b6, 0x00b7,
40
  0x00b8, 0x00b9, 0x00ba, 0x00bb, 0x00bc, 0x00bd, 0x00be, 0x00bf,
41
  0x00c0, 0x00c1, 0x00c2, 0x0102, 0x00c4, 0x00c5, 0x00c6, 0x00c7,
42
  0x00c8, 0x00c9, 0x00ca, 0x00cb, 0x0300, 0x00cd, 0x00ce, 0x00cf,
43
  0x0110, 0x00d1, 0x0309, 0x00d3, 0x00d4, 0x01a0, 0x00d6, 0x00d7,
44
  0x00d8, 0x00d9, 0x00da, 0x00db, 0x00dc, 0x01af, 0x0303, 0x00df,
45
  0x00e0, 0x00e1, 0x00e2, 0x0103, 0x00e4, 0x00e5, 0x00e6, 0x00e7,
46
  0x00e8, 0x00e9, 0x00ea, 0x00eb, 0x0301, 0x00ed, 0x00ee, 0x00ef,
47
  0x0111, 0x00f1, 0x0323, 0x00f3, 0x00f4, 0x01a1, 0x00f6, 0x00f7,
48
  0x00f8, 0x00f9, 0x00fa, 0x00fb, 0x00fc, 0x01b0, 0x20ab, 0x00ff
49
};
50
51
/* Unicode to ASCII character lookup tables for the Windows 1258 codepage
52
 * Unknown are filled with the ASCII replacement character 0x1a
53
 */
54
const uint8_t libuna_codepage_windows_1258_unicode_to_byte_stream_base_0x00c0[ 72 ] = {
55
  0xc0, 0xc1, 0xc2, 0x1a, 0xc4, 0xc5, 0xc6, 0xc7,
56
  0xc8, 0xc9, 0xca, 0xcb, 0x1a, 0xcd, 0xce, 0xcf,
57
  0x1a, 0xd1, 0x1a, 0xd3, 0xd4, 0x1a, 0xd6, 0xd7,
58
  0xd8, 0xd9, 0xda, 0xdb, 0xdc, 0x1a, 0x1a, 0xdf,
59
  0xe0, 0xe1, 0xe2, 0x1a, 0xe4, 0xe5, 0xe6, 0xe7,
60
  0xe8, 0xe9, 0xea, 0xeb, 0x1a, 0xed, 0xee, 0xef,
61
  0x1a, 0xf1, 0x1a, 0xf3, 0xf4, 0x1a, 0xf6, 0xf7,
62
  0xf8, 0xf9, 0xfa, 0xfb, 0xfc, 0x1a, 0x1a, 0xff,
63
  0x1a, 0x1a, 0xc3, 0xe3, 0x1a, 0x1a, 0x1a, 0x1a
64
};
65
66
const uint8_t libuna_codepage_windows_1258_unicode_to_byte_stream_base_0x2010[ 24 ] = {
67
  0x1a, 0x1a, 0x1a, 0x96, 0x97, 0x1a, 0x1a, 0x1a,
68
  0x91, 0x92, 0x82, 0x1a, 0x93, 0x94, 0x84, 0x1a,
69
  0x86, 0x87, 0x95, 0x1a, 0x1a, 0x1a, 0x85, 0x1a
70
};
71
72
/* Copies an Unicode character from a Windows 1258 encoded byte stream
73
 * Returns 1 if successful or -1 on error
74
 */
75
int libuna_codepage_windows_1258_copy_from_byte_stream(
76
     libuna_unicode_character_t *unicode_character,
77
     const uint8_t *byte_stream,
78
     size_t byte_stream_size,
79
     size_t *byte_stream_index,
80
     libcerror_error_t **error )
81
0
{
82
0
  static char *function                             = "libuna_codepage_windows_1258_copy_from_byte_stream";
83
0
  libuna_unicode_character_t safe_unicode_character = 0xfffd;
84
0
  size_t safe_byte_stream_index                     = 0;
85
0
  uint8_t byte_stream_character                     = 0;
86
87
0
  if( unicode_character == NULL )
88
0
  {
89
0
    libcerror_error_set(
90
0
     error,
91
0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
92
0
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
93
0
     "%s: invalid Unicode character.",
94
0
     function );
95
96
0
    return( -1 );
97
0
  }
98
0
  if( byte_stream == NULL )
99
0
  {
100
0
    libcerror_error_set(
101
0
     error,
102
0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
103
0
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
104
0
     "%s: invalid byte stream.",
105
0
     function );
106
107
0
    return( -1 );
108
0
  }
109
0
  if( byte_stream_size > (size_t) SSIZE_MAX )
110
0
  {
111
0
    libcerror_error_set(
112
0
     error,
113
0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
114
0
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
115
0
     "%s: invalid byte stream size value exceeds maximum.",
116
0
     function );
117
118
0
    return( -1 );
119
0
  }
120
0
  if( byte_stream_index == NULL )
121
0
  {
122
0
    libcerror_error_set(
123
0
     error,
124
0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
125
0
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
126
0
     "%s: invalid byte stream index.",
127
0
     function );
128
129
0
    return( -1 );
130
0
  }
131
0
  safe_byte_stream_index = *byte_stream_index;
132
133
0
  if( safe_byte_stream_index >= byte_stream_size )
134
0
  {
135
0
    libcerror_error_set(
136
0
     error,
137
0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
138
0
     LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
139
0
     "%s: byte stream too small.",
140
0
     function );
141
142
0
    return( -1 );
143
0
  }
144
0
  byte_stream_character = byte_stream[ safe_byte_stream_index++ ];
145
146
0
  if( byte_stream_character < 0x80 )
147
0
  {
148
0
    safe_unicode_character = byte_stream_character;
149
0
  }
150
0
  else
151
0
  {
152
0
    byte_stream_character -= 0x80;
153
154
0
    safe_unicode_character = libuna_codepage_windows_1258_byte_stream_to_unicode_base_0x80[ byte_stream_character ];
155
0
  }
156
0
  *unicode_character = safe_unicode_character;
157
0
  *byte_stream_index = safe_byte_stream_index;
158
159
0
  return( 1 );
160
0
}
161
162
/* Copies an Unicode character to a Windows 1258 encoded byte stream
163
 * Returns 1 if successful or -1 on error
164
 */
165
int libuna_codepage_windows_1258_copy_to_byte_stream(
166
     libuna_unicode_character_t unicode_character,
167
     uint8_t *byte_stream,
168
     size_t byte_stream_size,
169
     size_t *byte_stream_index,
170
     libcerror_error_t **error )
171
0
{
172
0
  static char *function         = "libuna_codepage_windows_1258_copy_to_byte_stream";
173
0
  size_t safe_byte_stream_index = 0;
174
0
  uint16_t byte_stream_value    = 0x001a;
175
176
0
  if( byte_stream == NULL )
177
0
  {
178
0
    libcerror_error_set(
179
0
     error,
180
0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
181
0
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
182
0
     "%s: invalid byte stream.",
183
0
     function );
184
185
0
    return( -1 );
186
0
  }
187
0
  if( byte_stream_size > (size_t) SSIZE_MAX )
188
0
  {
189
0
    libcerror_error_set(
190
0
     error,
191
0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
192
0
     LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,
193
0
     "%s: invalid byte stream size value exceeds maximum.",
194
0
     function );
195
196
0
    return( -1 );
197
0
  }
198
0
  if( byte_stream_index == NULL )
199
0
  {
200
0
    libcerror_error_set(
201
0
     error,
202
0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
203
0
     LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,
204
0
     "%s: invalid byte stream index.",
205
0
     function );
206
207
0
    return( -1 );
208
0
  }
209
0
  safe_byte_stream_index = *byte_stream_index;
210
211
0
  if( safe_byte_stream_index >= byte_stream_size )
212
0
  {
213
0
    libcerror_error_set(
214
0
     error,
215
0
     LIBCERROR_ERROR_DOMAIN_ARGUMENTS,
216
0
     LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,
217
0
     "%s: byte stream too small.",
218
0
     function );
219
220
0
    return( -1 );
221
0
  }
222
0
  if( unicode_character < 0x0080 )
223
0
  {
224
0
    byte_stream_value = (uint16_t) unicode_character;
225
0
  }
226
0
  else if( ( unicode_character >= 0x00a0 )
227
0
        && ( unicode_character < 0x00c0 ) )
228
0
  {
229
0
    byte_stream_value = (uint16_t) unicode_character;
230
0
  }
231
0
  else if( ( unicode_character >= 0x00c0 )
232
0
        && ( unicode_character < 0x0108 ) )
233
0
  {
234
0
    unicode_character -= 0x00c0;
235
236
0
    byte_stream_value = libuna_codepage_windows_1258_unicode_to_byte_stream_base_0x00c0[ unicode_character ];
237
0
  }
238
0
  else if( ( unicode_character >= 0x2010 )
239
0
        && ( unicode_character < 0x2028 ) )
240
0
  {
241
0
    unicode_character -= 0x2010;
242
243
0
    byte_stream_value = libuna_codepage_windows_1258_unicode_to_byte_stream_base_0x2010[ unicode_character ];
244
0
  }
245
0
  else switch( unicode_character )
246
0
  {
247
0
    case 0x0110:
248
0
      byte_stream_value = 0xd0;
249
0
      break;
250
251
0
    case 0x0111:
252
0
      byte_stream_value = 0xf0;
253
0
      break;
254
255
0
    case 0x0152:
256
0
      byte_stream_value = 0x8c;
257
0
      break;
258
259
0
    case 0x0153:
260
0
      byte_stream_value = 0x9c;
261
0
      break;
262
263
0
    case 0x0178:
264
0
      byte_stream_value = 0x9f;
265
0
      break;
266
267
0
    case 0x0192:
268
0
      byte_stream_value = 0x83;
269
0
      break;
270
271
0
    case 0x01a0:
272
0
      byte_stream_value = 0xd5;
273
0
      break;
274
275
0
    case 0x01a1:
276
0
      byte_stream_value = 0xf5;
277
0
      break;
278
279
0
    case 0x01af:
280
0
      byte_stream_value = 0xdd;
281
0
      break;
282
283
0
    case 0x01b0:
284
0
      byte_stream_value = 0xfd;
285
0
      break;
286
287
0
    case 0x02c6:
288
0
      byte_stream_value = 0x88;
289
0
      break;
290
291
0
    case 0x02dc:
292
0
      byte_stream_value = 0x98;
293
0
      break;
294
295
0
    case 0x0300:
296
0
      byte_stream_value = 0xcc;
297
0
      break;
298
299
0
    case 0x0301:
300
0
      byte_stream_value = 0xec;
301
0
      break;
302
303
0
    case 0x0303:
304
0
      byte_stream_value = 0xde;
305
0
      break;
306
307
0
    case 0x0309:
308
0
      byte_stream_value = 0xd2;
309
0
      break;
310
311
0
    case 0x0323:
312
0
      byte_stream_value = 0xf2;
313
0
      break;
314
315
0
    case 0x2030:
316
0
      byte_stream_value = 0x89;
317
0
      break;
318
319
0
    case 0x2039:
320
0
      byte_stream_value = 0x8b;
321
0
      break;
322
323
0
    case 0x203a:
324
0
      byte_stream_value = 0x9b;
325
0
      break;
326
327
0
    case 0x20ab:
328
0
      byte_stream_value = 0xfe;
329
0
      break;
330
331
0
    case 0x20ac:
332
0
      byte_stream_value = 0x80;
333
0
      break;
334
335
0
    case 0x2122:
336
0
      byte_stream_value = 0x99;
337
0
      break;
338
339
0
    default:
340
0
      byte_stream_value = 0x1a;
341
0
      break;
342
0
  }
343
0
  byte_stream[ safe_byte_stream_index++ ] = (uint8_t) ( byte_stream_value & 0x00ff );
344
345
0
  *byte_stream_index = safe_byte_stream_index;
346
347
0
  return( 1 );
348
0
}
349