/src/libnk2/libuna/libuna_codepage_mac_celtic.c
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1  |  | /*  | 
2  |  |  * MacCeltic 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_celtic.h"  | 
26  |  | #include "libuna_libcerror.h"  | 
27  |  | #include "libuna_types.h"  | 
28  |  |  | 
29  |  | /* Extended ASCII to Unicode character lookup table for the MacCeltic codepage  | 
30  |  |  * Unknown are filled with the Unicode replacement character 0xfffd  | 
31  |  |  */  | 
32  |  | const uint16_t libuna_codepage_mac_celtic_byte_stream_to_unicode_base_0x80[ 128 ] = { | 
33  |  |   0x00c4, 0x00c5, 0x00c7, 0x00c9, 0x00d1, 0x00d6, 0x00dc, 0x00e1,  | 
34  |  |   0x00e0, 0x00e2, 0x00e4, 0x00e3, 0x00e5, 0x00e7, 0x00e9, 0x00e8,  | 
35  |  |   0x00ea, 0x00eb, 0x00ed, 0x00ec, 0x00ee, 0x00ef, 0x00f1, 0x00f3,  | 
36  |  |   0x00f2, 0x00f4, 0x00f6, 0x00f5, 0x00fa, 0x00f9, 0x00fb, 0x00fc,  | 
37  |  |   0x2020, 0x00b0, 0x00a2, 0x00a3, 0x00a7, 0x2022, 0x00b6, 0x00df,  | 
38  |  |   0x00ae, 0x00a9, 0x2122, 0x00b4, 0x00a8, 0x2260, 0x00c6, 0x00d8,  | 
39  |  |   0x221e, 0x00b1, 0x2264, 0x2265, 0x00a5, 0x00b5, 0x2202, 0x2211,  | 
40  |  |   0x220f, 0x03c0, 0x222b, 0x00aa, 0x00ba, 0x03a9, 0x00e6, 0x00f8,  | 
41  |  |   0x00bf, 0x00a1, 0x00ac, 0x221a, 0x0192, 0x2248, 0x2206, 0x00ab,  | 
42  |  |   0x00bb, 0x2026, 0x00a0, 0x00c0, 0x00c3, 0x00d5, 0x0152, 0x0153,  | 
43  |  |   0x2013, 0x2014, 0x201c, 0x201d, 0x2018, 0x2019, 0x00f7, 0x25ca,  | 
44  |  |   0x00ff, 0x0178, 0x2044, 0x20ac, 0x2039, 0x203a, 0x0176, 0x0177,  | 
45  |  |   0x2021, 0x00b7, 0x1ef2, 0x1ef3, 0x2030, 0x00c2, 0x00ca, 0x00c1,  | 
46  |  |   0x00cb, 0x00c8, 0x00cd, 0x00ce, 0x00cf, 0x00cc, 0x00d3, 0x00d4,  | 
47  |  |   0x2663, 0x00d2, 0x00da, 0x00db, 0x00d9, 0x0131, 0x00dd, 0x00fd,  | 
48  |  |   0x0174, 0x0175, 0x1e84, 0x1e85, 0x1e80, 0x1e81, 0x1e82, 0x1e83  | 
49  |  | };  | 
50  |  |  | 
51  |  | /* Unicode to ASCII character lookup tables for the MacCeltic codepage  | 
52  |  |  * Unknown are filled with the ASCII replacement character 0x1a  | 
53  |  |  */  | 
54  |  | const uint8_t libuna_codepage_mac_celtic_unicode_to_byte_stream_base_0x00a0[ 96 ] = { | 
55  |  |   0xca, 0xc1, 0xa2, 0xa3, 0x1a, 0xb4, 0x1a, 0xa4,  | 
56  |  |   0xac, 0xa9, 0xbb, 0xc7, 0xc2, 0x1a, 0xa8, 0x1a,  | 
57  |  |   0xa1, 0xb1, 0x1a, 0x1a, 0xab, 0xb5, 0xa6, 0xe1,  | 
58  |  |   0x1a, 0x1a, 0xbc, 0xc8, 0x1a, 0x1a, 0x1a, 0xc0,  | 
59  |  |   0xcb, 0xe7, 0xe5, 0xcc, 0x80, 0x81, 0xae, 0x82,  | 
60  |  |   0xe9, 0x83, 0xe6, 0xe8, 0xed, 0xea, 0xeb, 0xec,  | 
61  |  |   0x1a, 0x84, 0xf1, 0xee, 0xef, 0xcd, 0x85, 0x1a,  | 
62  |  |   0xaf, 0xf4, 0xf2, 0xf3, 0x86, 0xf6, 0x1a, 0xa7,  | 
63  |  |   0x88, 0x87, 0x89, 0x8b, 0x8a, 0x8c, 0xbe, 0x8d,  | 
64  |  |   0x8f, 0x8e, 0x90, 0x91, 0x93, 0x92, 0x94, 0x95,  | 
65  |  |   0x1a, 0x96, 0x98, 0x97, 0x99, 0x9b, 0x9a, 0xd6,  | 
66  |  |   0xbf, 0x9d, 0x9c, 0x9e, 0x9f, 0xf7, 0x1a, 0xd8  | 
67  |  | };  | 
68  |  |  | 
69  |  | const uint8_t libuna_codepage_mac_celtic_unicode_to_byte_stream_base_0x2010[ 56 ] = { | 
70  |  |   0x1a, 0x1a, 0x1a, 0xd0, 0xd1, 0x1a, 0x1a, 0x1a,  | 
71  |  |   0xd4, 0xd5, 0x1a, 0x1a, 0xd2, 0xd3, 0x1a, 0x1a,  | 
72  |  |   0xa0, 0xe0, 0xa5, 0x1a, 0x1a, 0x1a, 0xc9, 0x1a,  | 
73  |  |   0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a,  | 
74  |  |   0xe4, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a,  | 
75  |  |   0x1a, 0xdc, 0xdd, 0x1a, 0x1a, 0x1a, 0x1a, 0x1a,  | 
76  |  |   0x1a, 0x1a, 0x1a, 0x1a, 0xda, 0x1a, 0x1a, 0x1a  | 
77  |  | };  | 
78  |  |  | 
79  |  | /* Copies an Unicode character from a MacCeltic encoded byte stream  | 
80  |  |  * Returns 1 if successful or -1 on error  | 
81  |  |  */  | 
82  |  | int libuna_codepage_mac_celtic_copy_from_byte_stream(  | 
83  |  |      libuna_unicode_character_t *unicode_character,  | 
84  |  |      const uint8_t *byte_stream,  | 
85  |  |      size_t byte_stream_size,  | 
86  |  |      size_t *byte_stream_index,  | 
87  |  |      libcerror_error_t **error )  | 
88  | 0  | { | 
89  | 0  |   static char *function                             = "libuna_codepage_mac_celtic_copy_from_byte_stream";  | 
90  | 0  |   libuna_unicode_character_t safe_unicode_character = 0xfffd;  | 
91  | 0  |   size_t safe_byte_stream_index                     = 0;  | 
92  | 0  |   uint8_t byte_stream_character                     = 0;  | 
93  |  | 
  | 
94  | 0  |   if( unicode_character == NULL )  | 
95  | 0  |   { | 
96  | 0  |     libcerror_error_set(  | 
97  | 0  |      error,  | 
98  | 0  |      LIBCERROR_ERROR_DOMAIN_ARGUMENTS,  | 
99  | 0  |      LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,  | 
100  | 0  |      "%s: invalid Unicode character.",  | 
101  | 0  |      function );  | 
102  |  | 
  | 
103  | 0  |     return( -1 );  | 
104  | 0  |   }  | 
105  | 0  |   if( byte_stream == 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 byte stream.",  | 
112  | 0  |      function );  | 
113  |  | 
  | 
114  | 0  |     return( -1 );  | 
115  | 0  |   }  | 
116  | 0  |   if( byte_stream_size > (size_t) SSIZE_MAX )  | 
117  | 0  |   { | 
118  | 0  |     libcerror_error_set(  | 
119  | 0  |      error,  | 
120  | 0  |      LIBCERROR_ERROR_DOMAIN_ARGUMENTS,  | 
121  | 0  |      LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,  | 
122  | 0  |      "%s: invalid byte stream size value exceeds maximum.",  | 
123  | 0  |      function );  | 
124  |  | 
  | 
125  | 0  |     return( -1 );  | 
126  | 0  |   }  | 
127  | 0  |   if( byte_stream_index == NULL )  | 
128  | 0  |   { | 
129  | 0  |     libcerror_error_set(  | 
130  | 0  |      error,  | 
131  | 0  |      LIBCERROR_ERROR_DOMAIN_ARGUMENTS,  | 
132  | 0  |      LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,  | 
133  | 0  |      "%s: invalid byte stream index.",  | 
134  | 0  |      function );  | 
135  |  | 
  | 
136  | 0  |     return( -1 );  | 
137  | 0  |   }  | 
138  | 0  |   safe_byte_stream_index = *byte_stream_index;  | 
139  |  | 
  | 
140  | 0  |   if( safe_byte_stream_index >= byte_stream_size )  | 
141  | 0  |   { | 
142  | 0  |     libcerror_error_set(  | 
143  | 0  |      error,  | 
144  | 0  |      LIBCERROR_ERROR_DOMAIN_ARGUMENTS,  | 
145  | 0  |      LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,  | 
146  | 0  |      "%s: byte stream too small.",  | 
147  | 0  |      function );  | 
148  |  | 
  | 
149  | 0  |     return( -1 );  | 
150  | 0  |   }  | 
151  | 0  |   byte_stream_character = byte_stream[ safe_byte_stream_index++ ];  | 
152  |  | 
  | 
153  | 0  |   if( byte_stream_character < 0x80 )  | 
154  | 0  |   { | 
155  | 0  |     safe_unicode_character = byte_stream_character;  | 
156  | 0  |   }  | 
157  | 0  |   else  | 
158  | 0  |   { | 
159  | 0  |     byte_stream_character -= 0x80;  | 
160  |  | 
  | 
161  | 0  |     safe_unicode_character = libuna_codepage_mac_celtic_byte_stream_to_unicode_base_0x80[ byte_stream_character ];  | 
162  | 0  |   }  | 
163  | 0  |   *unicode_character = safe_unicode_character;  | 
164  | 0  |   *byte_stream_index = safe_byte_stream_index;  | 
165  |  | 
  | 
166  | 0  |   return( 1 );  | 
167  | 0  | }  | 
168  |  |  | 
169  |  | /* Copies an Unicode character to a MacCeltic encoded byte stream  | 
170  |  |  * Returns 1 if successful or -1 on error  | 
171  |  |  */  | 
172  |  | int libuna_codepage_mac_celtic_copy_to_byte_stream(  | 
173  |  |      libuna_unicode_character_t unicode_character,  | 
174  |  |      uint8_t *byte_stream,  | 
175  |  |      size_t byte_stream_size,  | 
176  |  |      size_t *byte_stream_index,  | 
177  |  |      libcerror_error_t **error )  | 
178  | 0  | { | 
179  | 0  |   static char *function         = "libuna_codepage_mac_celtic_copy_to_byte_stream";  | 
180  | 0  |   size_t safe_byte_stream_index = 0;  | 
181  | 0  |   uint16_t byte_stream_value    = 0x001a;  | 
182  |  | 
  | 
183  | 0  |   if( byte_stream == NULL )  | 
184  | 0  |   { | 
185  | 0  |     libcerror_error_set(  | 
186  | 0  |      error,  | 
187  | 0  |      LIBCERROR_ERROR_DOMAIN_ARGUMENTS,  | 
188  | 0  |      LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,  | 
189  | 0  |      "%s: invalid byte stream.",  | 
190  | 0  |      function );  | 
191  |  | 
  | 
192  | 0  |     return( -1 );  | 
193  | 0  |   }  | 
194  | 0  |   if( byte_stream_size > (size_t) SSIZE_MAX )  | 
195  | 0  |   { | 
196  | 0  |     libcerror_error_set(  | 
197  | 0  |      error,  | 
198  | 0  |      LIBCERROR_ERROR_DOMAIN_ARGUMENTS,  | 
199  | 0  |      LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM,  | 
200  | 0  |      "%s: invalid byte stream size value exceeds maximum.",  | 
201  | 0  |      function );  | 
202  |  | 
  | 
203  | 0  |     return( -1 );  | 
204  | 0  |   }  | 
205  | 0  |   if( byte_stream_index == NULL )  | 
206  | 0  |   { | 
207  | 0  |     libcerror_error_set(  | 
208  | 0  |      error,  | 
209  | 0  |      LIBCERROR_ERROR_DOMAIN_ARGUMENTS,  | 
210  | 0  |      LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE,  | 
211  | 0  |      "%s: invalid byte stream index.",  | 
212  | 0  |      function );  | 
213  |  | 
  | 
214  | 0  |     return( -1 );  | 
215  | 0  |   }  | 
216  | 0  |   safe_byte_stream_index = *byte_stream_index;  | 
217  |  | 
  | 
218  | 0  |   if( safe_byte_stream_index >= byte_stream_size )  | 
219  | 0  |   { | 
220  | 0  |     libcerror_error_set(  | 
221  | 0  |      error,  | 
222  | 0  |      LIBCERROR_ERROR_DOMAIN_ARGUMENTS,  | 
223  | 0  |      LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL,  | 
224  | 0  |      "%s: byte stream too small.",  | 
225  | 0  |      function );  | 
226  |  | 
  | 
227  | 0  |     return( -1 );  | 
228  | 0  |   }  | 
229  | 0  |   if( unicode_character < 0x0080 )  | 
230  | 0  |   { | 
231  | 0  |     byte_stream_value = (uint16_t) unicode_character;  | 
232  | 0  |   }  | 
233  | 0  |   else if( ( unicode_character >= 0x00a0 )  | 
234  | 0  |         && ( unicode_character < 0x0100 ) )  | 
235  | 0  |   { | 
236  | 0  |     unicode_character -= 0x00a0;  | 
237  |  | 
  | 
238  | 0  |     byte_stream_value = libuna_codepage_mac_celtic_unicode_to_byte_stream_base_0x00a0[ unicode_character ];  | 
239  | 0  |   }  | 
240  | 0  |   else if( ( unicode_character >= 0x2010 )  | 
241  | 0  |         && ( unicode_character < 0x2048 ) )  | 
242  | 0  |   { | 
243  | 0  |     unicode_character -= 0x2010;  | 
244  |  | 
  | 
245  | 0  |     byte_stream_value = libuna_codepage_mac_celtic_unicode_to_byte_stream_base_0x2010[ unicode_character ];  | 
246  | 0  |   }  | 
247  | 0  |   else switch( unicode_character )  | 
248  | 0  |   { | 
249  | 0  |     case 0x0131:  | 
250  | 0  |       byte_stream_value = 0xf5;  | 
251  | 0  |       break;  | 
252  |  |  | 
253  | 0  |     case 0x0152:  | 
254  | 0  |       byte_stream_value = 0xce;  | 
255  | 0  |       break;  | 
256  |  |  | 
257  | 0  |     case 0x0153:  | 
258  | 0  |       byte_stream_value = 0xcf;  | 
259  | 0  |       break;  | 
260  |  |  | 
261  | 0  |     case 0x0174:  | 
262  | 0  |       byte_stream_value = 0xf8;  | 
263  | 0  |       break;  | 
264  |  |  | 
265  | 0  |     case 0x0175:  | 
266  | 0  |       byte_stream_value = 0xf9;  | 
267  | 0  |       break;  | 
268  |  |  | 
269  | 0  |     case 0x0176:  | 
270  | 0  |       byte_stream_value = 0xde;  | 
271  | 0  |       break;  | 
272  |  |  | 
273  | 0  |     case 0x0177:  | 
274  | 0  |       byte_stream_value = 0xdf;  | 
275  | 0  |       break;  | 
276  |  |  | 
277  | 0  |     case 0x0178:  | 
278  | 0  |       byte_stream_value = 0xd9;  | 
279  | 0  |       break;  | 
280  |  |  | 
281  | 0  |     case 0x0192:  | 
282  | 0  |       byte_stream_value = 0xc4;  | 
283  | 0  |       break;  | 
284  |  |  | 
285  | 0  |     case 0x03a9:  | 
286  | 0  |       byte_stream_value = 0xbd;  | 
287  | 0  |       break;  | 
288  |  |  | 
289  | 0  |     case 0x03c0:  | 
290  | 0  |       byte_stream_value = 0xb9;  | 
291  | 0  |       break;  | 
292  |  |  | 
293  | 0  |     case 0x1e80:  | 
294  | 0  |       byte_stream_value = 0xfc;  | 
295  | 0  |       break;  | 
296  |  |  | 
297  | 0  |     case 0x1e81:  | 
298  | 0  |       byte_stream_value = 0xfd;  | 
299  | 0  |       break;  | 
300  |  |  | 
301  | 0  |     case 0x1e82:  | 
302  | 0  |       byte_stream_value = 0xfe;  | 
303  | 0  |       break;  | 
304  |  |  | 
305  | 0  |     case 0x1e83:  | 
306  | 0  |       byte_stream_value = 0xff;  | 
307  | 0  |       break;  | 
308  |  |  | 
309  | 0  |     case 0x1e84:  | 
310  | 0  |       byte_stream_value = 0xfa;  | 
311  | 0  |       break;  | 
312  |  |  | 
313  | 0  |     case 0x1e85:  | 
314  | 0  |       byte_stream_value = 0xfb;  | 
315  | 0  |       break;  | 
316  |  |  | 
317  | 0  |     case 0x1ef2:  | 
318  | 0  |       byte_stream_value = 0xe2;  | 
319  | 0  |       break;  | 
320  |  |  | 
321  | 0  |     case 0x1ef3:  | 
322  | 0  |       byte_stream_value = 0xe3;  | 
323  | 0  |       break;  | 
324  |  |  | 
325  | 0  |     case 0x20ac:  | 
326  | 0  |       byte_stream_value = 0xdb;  | 
327  | 0  |       break;  | 
328  |  |  | 
329  | 0  |     case 0x2122:  | 
330  | 0  |       byte_stream_value = 0xaa;  | 
331  | 0  |       break;  | 
332  |  |  | 
333  | 0  |     case 0x2202:  | 
334  | 0  |       byte_stream_value = 0xb6;  | 
335  | 0  |       break;  | 
336  |  |  | 
337  | 0  |     case 0x2206:  | 
338  | 0  |       byte_stream_value = 0xc6;  | 
339  | 0  |       break;  | 
340  |  |  | 
341  | 0  |     case 0x220f:  | 
342  | 0  |       byte_stream_value = 0xb8;  | 
343  | 0  |       break;  | 
344  |  |  | 
345  | 0  |     case 0x2211:  | 
346  | 0  |       byte_stream_value = 0xb7;  | 
347  | 0  |       break;  | 
348  |  |  | 
349  | 0  |     case 0x221a:  | 
350  | 0  |       byte_stream_value = 0xc3;  | 
351  | 0  |       break;  | 
352  |  |  | 
353  | 0  |     case 0x221e:  | 
354  | 0  |       byte_stream_value = 0xb0;  | 
355  | 0  |       break;  | 
356  |  |  | 
357  | 0  |     case 0x222b:  | 
358  | 0  |       byte_stream_value = 0xba;  | 
359  | 0  |       break;  | 
360  |  |  | 
361  | 0  |     case 0x2248:  | 
362  | 0  |       byte_stream_value = 0xc5;  | 
363  | 0  |       break;  | 
364  |  |  | 
365  | 0  |     case 0x2260:  | 
366  | 0  |       byte_stream_value = 0xad;  | 
367  | 0  |       break;  | 
368  |  |  | 
369  | 0  |     case 0x2264:  | 
370  | 0  |       byte_stream_value = 0xb2;  | 
371  | 0  |       break;  | 
372  |  |  | 
373  | 0  |     case 0x2265:  | 
374  | 0  |       byte_stream_value = 0xb3;  | 
375  | 0  |       break;  | 
376  |  |  | 
377  | 0  |     case 0x25ca:  | 
378  | 0  |       byte_stream_value = 0xd7;  | 
379  | 0  |       break;  | 
380  |  |  | 
381  | 0  |     case 0x2663:  | 
382  | 0  |       byte_stream_value = 0xf0;  | 
383  | 0  |       break;  | 
384  |  |  | 
385  | 0  |     default:  | 
386  | 0  |       byte_stream_value = 0x1a;  | 
387  | 0  |       break;  | 
388  | 0  |   }  | 
389  | 0  |   byte_stream[ safe_byte_stream_index++ ] = (uint8_t) ( byte_stream_value & 0x00ff );  | 
390  |  | 
  | 
391  | 0  |   *byte_stream_index = safe_byte_stream_index;  | 
392  |  | 
  | 
393  | 0  |   return( 1 );  | 
394  | 0  | }  | 
395  |  |  |