/src/libfwevt/libuna/libuna_codepage_mac_greek.c
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1 | | /* |
2 | | * MacGreek codepage 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_mac_greek.h" |
26 | | #include "libuna_libcerror.h" |
27 | | #include "libuna_types.h" |
28 | | |
29 | | /* Extended ASCII to Unicode character lookup table for the MacGreek codepage |
30 | | * Unknown are filled with the Unicode replacement character 0xfffd |
31 | | */ |
32 | | const uint16_t libuna_codepage_mac_greek_byte_stream_to_unicode_base_0x80[ 128 ] = { |
33 | | 0x00c4, 0x00b9, 0x00b2, 0x00c9, 0x00b3, 0x00d6, 0x00dc, 0x0385, |
34 | | 0x00e0, 0x00e2, 0x00e4, 0x0384, 0x00a8, 0x00e7, 0x00e9, 0x00e8, |
35 | | 0x00ea, 0x00eb, 0x00a3, 0x2122, 0x00ee, 0x00ef, 0x2022, 0x00bd, |
36 | | 0x2030, 0x00f4, 0x00f6, 0x00a6, 0x20ac, 0x00f9, 0x00fb, 0x00fc, |
37 | | 0x2020, 0x0393, 0x0394, 0x0398, 0x039b, 0x039e, 0x03a0, 0x00df, |
38 | | 0x00ae, 0x00a9, 0x03a3, 0x03aa, 0x00a7, 0x2260, 0x00b0, 0x00b7, |
39 | | 0x0391, 0x00b1, 0x2264, 0x2265, 0x00a5, 0x0392, 0x0395, 0x0396, |
40 | | 0x0397, 0x0399, 0x039a, 0x039c, 0x03a6, 0x03ab, 0x03a8, 0x03a9, |
41 | | 0x03ac, 0x039d, 0x00ac, 0x039f, 0x03a1, 0x2248, 0x03a4, 0x00ab, |
42 | | 0x00bb, 0x2026, 0x00a0, 0x03a5, 0x03a7, 0x0386, 0x0388, 0x0153, |
43 | | 0x2013, 0x2015, 0x201c, 0x201d, 0x2018, 0x2019, 0x00f7, 0x0389, |
44 | | 0x038a, 0x038c, 0x038e, 0x03ad, 0x03ae, 0x03af, 0x03cc, 0x038f, |
45 | | 0x03cd, 0x03b1, 0x03b2, 0x03c8, 0x03b4, 0x03b5, 0x03c6, 0x03b3, |
46 | | 0x03b7, 0x03b9, 0x03be, 0x03ba, 0x03bb, 0x03bc, 0x03bd, 0x03bf, |
47 | | 0x03c0, 0x03ce, 0x03c1, 0x03c3, 0x03c4, 0x03b8, 0x03c9, 0x03c2, |
48 | | 0x03c7, 0x03c5, 0x03b6, 0x03ca, 0x03cb, 0x0390, 0x03b0, 0x00ad |
49 | | }; |
50 | | |
51 | | /* Unicode to ASCII character lookup tables for the MacGreek codepage |
52 | | * Unknown are filled with the ASCII replacement character 0x1a |
53 | | */ |
54 | | const uint8_t libuna_codepage_mac_greek_unicode_to_byte_stream_base_0x00a0[ 96 ] = { |
55 | | 0xca, 0x1a, 0x1a, 0x92, 0x1a, 0xb4, 0x9b, 0xac, |
56 | | 0x8c, 0xa9, 0x1a, 0xc7, 0xc2, 0xff, 0xa8, 0x1a, |
57 | | 0xae, 0xb1, 0x82, 0x84, 0x1a, 0x1a, 0x1a, 0xaf, |
58 | | 0x1a, 0x81, 0x1a, 0xc8, 0x1a, 0x97, 0x1a, 0x1a, |
59 | | 0x1a, 0x1a, 0x1a, 0x1a, 0x80, 0x1a, 0x1a, 0x1a, |
60 | | 0x1a, 0x83, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, |
61 | | 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x85, 0x1a, |
62 | | 0x1a, 0x1a, 0x1a, 0x1a, 0x86, 0x1a, 0x1a, 0xa7, |
63 | | 0x88, 0x1a, 0x89, 0x1a, 0x8a, 0x1a, 0x1a, 0x8d, |
64 | | 0x8f, 0x8e, 0x90, 0x91, 0x1a, 0x1a, 0x94, 0x95, |
65 | | 0x1a, 0x1a, 0x1a, 0x1a, 0x99, 0x1a, 0x9a, 0xd6, |
66 | | 0x1a, 0x9d, 0x1a, 0x9e, 0x9f, 0x1a, 0x1a, 0x1a |
67 | | }; |
68 | | |
69 | | const uint8_t libuna_codepage_mac_greek_unicode_to_byte_stream_base_0x0380[ 80 ] = { |
70 | | 0x1a, 0x1a, 0x1a, 0x1a, 0x8b, 0x87, 0xcd, 0x1a, |
71 | | 0xce, 0xd7, 0xd8, 0x1a, 0xd9, 0x1a, 0xda, 0xdf, |
72 | | 0xfd, 0xb0, 0xb5, 0xa1, 0xa2, 0xb6, 0xb7, 0xb8, |
73 | | 0xa3, 0xb9, 0xba, 0xa4, 0xbb, 0xc1, 0xa5, 0xc3, |
74 | | 0xa6, 0xc4, 0x1a, 0xaa, 0xc6, 0xcb, 0xbc, 0xcc, |
75 | | 0xbe, 0xbf, 0xab, 0xbd, 0xc0, 0xdb, 0xdc, 0xdd, |
76 | | 0xfe, 0xe1, 0xe2, 0xe7, 0xe4, 0xe5, 0xfa, 0xe8, |
77 | | 0xf5, 0xe9, 0xeb, 0xec, 0xed, 0xee, 0xea, 0xef, |
78 | | 0xf0, 0xf2, 0xf7, 0xf3, 0xf4, 0xf9, 0xe6, 0xf8, |
79 | | 0xe3, 0xf6, 0xfb, 0xfc, 0xde, 0xe0, 0xf1, 0x1a |
80 | | }; |
81 | | |
82 | | const uint8_t libuna_codepage_mac_greek_unicode_to_byte_stream_base_0x2010[ 40 ] = { |
83 | | 0x1a, 0x1a, 0x1a, 0xd0, 0x1a, 0xd1, 0x1a, 0x1a, |
84 | | 0xd4, 0xd5, 0x1a, 0x1a, 0xd2, 0xd3, 0x1a, 0x1a, |
85 | | 0xa0, 0x1a, 0x96, 0x1a, 0x1a, 0x1a, 0xc9, 0x1a, |
86 | | 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, |
87 | | 0x98, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a |
88 | | }; |
89 | | |
90 | | /* Copies an Unicode character from a MacGreek encoded byte stream |
91 | | * Returns 1 if successful or -1 on error |
92 | | */ |
93 | | int libuna_codepage_mac_greek_copy_from_byte_stream( |
94 | | libuna_unicode_character_t *unicode_character, |
95 | | const uint8_t *byte_stream, |
96 | | size_t byte_stream_size, |
97 | | size_t *byte_stream_index, |
98 | | libcerror_error_t **error ) |
99 | 0 | { |
100 | 0 | static char *function = "libuna_codepage_mac_greek_copy_from_byte_stream"; |
101 | 0 | libuna_unicode_character_t safe_unicode_character = 0xfffd; |
102 | 0 | size_t safe_byte_stream_index = 0; |
103 | 0 | uint8_t byte_stream_character = 0; |
104 | |
|
105 | 0 | if( unicode_character == NULL ) |
106 | 0 | { |
107 | 0 | libcerror_error_set( |
108 | 0 | error, |
109 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
110 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
111 | 0 | "%s: invalid Unicode character.", |
112 | 0 | function ); |
113 | |
|
114 | 0 | return( -1 ); |
115 | 0 | } |
116 | 0 | if( byte_stream == NULL ) |
117 | 0 | { |
118 | 0 | libcerror_error_set( |
119 | 0 | error, |
120 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
121 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
122 | 0 | "%s: invalid byte stream.", |
123 | 0 | function ); |
124 | |
|
125 | 0 | return( -1 ); |
126 | 0 | } |
127 | 0 | if( byte_stream_size > (size_t) SSIZE_MAX ) |
128 | 0 | { |
129 | 0 | libcerror_error_set( |
130 | 0 | error, |
131 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
132 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
133 | 0 | "%s: invalid byte stream size value exceeds maximum.", |
134 | 0 | function ); |
135 | |
|
136 | 0 | return( -1 ); |
137 | 0 | } |
138 | 0 | if( byte_stream_index == NULL ) |
139 | 0 | { |
140 | 0 | libcerror_error_set( |
141 | 0 | error, |
142 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
143 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
144 | 0 | "%s: invalid byte stream index.", |
145 | 0 | function ); |
146 | |
|
147 | 0 | return( -1 ); |
148 | 0 | } |
149 | 0 | safe_byte_stream_index = *byte_stream_index; |
150 | |
|
151 | 0 | if( safe_byte_stream_index >= byte_stream_size ) |
152 | 0 | { |
153 | 0 | libcerror_error_set( |
154 | 0 | error, |
155 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
156 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL, |
157 | 0 | "%s: byte stream too small.", |
158 | 0 | function ); |
159 | |
|
160 | 0 | return( -1 ); |
161 | 0 | } |
162 | 0 | byte_stream_character = byte_stream[ safe_byte_stream_index++ ]; |
163 | |
|
164 | 0 | if( byte_stream_character < 0x80 ) |
165 | 0 | { |
166 | 0 | safe_unicode_character = byte_stream_character; |
167 | 0 | } |
168 | 0 | else |
169 | 0 | { |
170 | 0 | byte_stream_character -= 0x80; |
171 | |
|
172 | 0 | safe_unicode_character = libuna_codepage_mac_greek_byte_stream_to_unicode_base_0x80[ byte_stream_character ]; |
173 | 0 | } |
174 | 0 | *unicode_character = safe_unicode_character; |
175 | 0 | *byte_stream_index = safe_byte_stream_index; |
176 | |
|
177 | 0 | return( 1 ); |
178 | 0 | } |
179 | | |
180 | | /* Copies an Unicode character to a MacGreek encoded byte stream |
181 | | * Returns 1 if successful or -1 on error |
182 | | */ |
183 | | int libuna_codepage_mac_greek_copy_to_byte_stream( |
184 | | libuna_unicode_character_t unicode_character, |
185 | | uint8_t *byte_stream, |
186 | | size_t byte_stream_size, |
187 | | size_t *byte_stream_index, |
188 | | libcerror_error_t **error ) |
189 | 0 | { |
190 | 0 | static char *function = "libuna_codepage_mac_greek_copy_to_byte_stream"; |
191 | 0 | size_t safe_byte_stream_index = 0; |
192 | 0 | uint16_t byte_stream_value = 0x001a; |
193 | |
|
194 | 0 | if( byte_stream == NULL ) |
195 | 0 | { |
196 | 0 | libcerror_error_set( |
197 | 0 | error, |
198 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
199 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
200 | 0 | "%s: invalid byte stream.", |
201 | 0 | function ); |
202 | |
|
203 | 0 | return( -1 ); |
204 | 0 | } |
205 | 0 | if( byte_stream_size > (size_t) SSIZE_MAX ) |
206 | 0 | { |
207 | 0 | libcerror_error_set( |
208 | 0 | error, |
209 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
210 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
211 | 0 | "%s: invalid byte stream size value exceeds maximum.", |
212 | 0 | function ); |
213 | |
|
214 | 0 | return( -1 ); |
215 | 0 | } |
216 | 0 | if( byte_stream_index == NULL ) |
217 | 0 | { |
218 | 0 | libcerror_error_set( |
219 | 0 | error, |
220 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
221 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
222 | 0 | "%s: invalid byte stream index.", |
223 | 0 | function ); |
224 | |
|
225 | 0 | return( -1 ); |
226 | 0 | } |
227 | 0 | safe_byte_stream_index = *byte_stream_index; |
228 | |
|
229 | 0 | if( safe_byte_stream_index >= byte_stream_size ) |
230 | 0 | { |
231 | 0 | libcerror_error_set( |
232 | 0 | error, |
233 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
234 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL, |
235 | 0 | "%s: byte stream too small.", |
236 | 0 | function ); |
237 | |
|
238 | 0 | return( -1 ); |
239 | 0 | } |
240 | 0 | if( unicode_character < 0x0080 ) |
241 | 0 | { |
242 | 0 | byte_stream_value = (uint16_t) unicode_character; |
243 | 0 | } |
244 | 0 | else if( ( unicode_character >= 0x00a0 ) |
245 | 0 | && ( unicode_character < 0x0100 ) ) |
246 | 0 | { |
247 | 0 | unicode_character -= 0x00a0; |
248 | |
|
249 | 0 | byte_stream_value = libuna_codepage_mac_greek_unicode_to_byte_stream_base_0x00a0[ unicode_character ]; |
250 | 0 | } |
251 | 0 | else if( ( unicode_character >= 0x0380 ) |
252 | 0 | && ( unicode_character < 0x03d0 ) ) |
253 | 0 | { |
254 | 0 | unicode_character -= 0x0380; |
255 | |
|
256 | 0 | byte_stream_value = libuna_codepage_mac_greek_unicode_to_byte_stream_base_0x0380[ unicode_character ]; |
257 | 0 | } |
258 | 0 | else if( ( unicode_character >= 0x2010 ) |
259 | 0 | && ( unicode_character < 0x2038 ) ) |
260 | 0 | { |
261 | 0 | unicode_character -= 0x2010; |
262 | |
|
263 | 0 | byte_stream_value = libuna_codepage_mac_greek_unicode_to_byte_stream_base_0x2010[ unicode_character ]; |
264 | 0 | } |
265 | 0 | else switch( unicode_character ) |
266 | 0 | { |
267 | 0 | case 0x0153: |
268 | 0 | byte_stream_value = 0xcf; |
269 | 0 | break; |
270 | | |
271 | 0 | case 0x20ac: |
272 | 0 | byte_stream_value = 0x9c; |
273 | 0 | break; |
274 | | |
275 | 0 | case 0x2122: |
276 | 0 | byte_stream_value = 0x93; |
277 | 0 | break; |
278 | | |
279 | 0 | case 0x2248: |
280 | 0 | byte_stream_value = 0xc5; |
281 | 0 | break; |
282 | | |
283 | 0 | case 0x2260: |
284 | 0 | byte_stream_value = 0xad; |
285 | 0 | break; |
286 | | |
287 | 0 | case 0x2264: |
288 | 0 | byte_stream_value = 0xb2; |
289 | 0 | break; |
290 | | |
291 | 0 | case 0x2265: |
292 | 0 | byte_stream_value = 0xb3; |
293 | 0 | break; |
294 | | |
295 | 0 | default: |
296 | 0 | byte_stream_value = 0x1a; |
297 | 0 | break; |
298 | 0 | } |
299 | 0 | byte_stream[ safe_byte_stream_index++ ] = (uint8_t) ( byte_stream_value & 0x00ff ); |
300 | |
|
301 | 0 | *byte_stream_index = safe_byte_stream_index; |
302 | |
|
303 | 0 | return( 1 ); |
304 | 0 | } |
305 | | |