/src/libsmraw/libfvalue/libfvalue_floating_point.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * Floating point value (IEEE 754) functions |
3 | | * |
4 | | * Copyright (C) 2010-2024, 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 <byte_stream.h> |
24 | | #include <memory.h> |
25 | | #include <narrow_string.h> |
26 | | #include <types.h> |
27 | | |
28 | | #include "libfvalue_definitions.h" |
29 | | #include "libfvalue_floating_point.h" |
30 | | #include "libfvalue_libcerror.h" |
31 | | |
32 | | /* Creates a floating point |
33 | | * Make sure the value floating_point is referencing, is set to NULL |
34 | | * Returns 1 if successful or -1 on error |
35 | | */ |
36 | | int libfvalue_floating_point_initialize( |
37 | | libfvalue_floating_point_t **floating_point, |
38 | | libcerror_error_t **error ) |
39 | 0 | { |
40 | 0 | static char *function = "libfvalue_floating_point_initialize"; |
41 | |
|
42 | 0 | if( floating_point == NULL ) |
43 | 0 | { |
44 | 0 | libcerror_error_set( |
45 | 0 | error, |
46 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
47 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
48 | 0 | "%s: invalid floating point.", |
49 | 0 | function ); |
50 | |
|
51 | 0 | return( -1 ); |
52 | 0 | } |
53 | 0 | if( *floating_point != NULL ) |
54 | 0 | { |
55 | 0 | libcerror_error_set( |
56 | 0 | error, |
57 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
58 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET, |
59 | 0 | "%s: invalid floating point value already set.", |
60 | 0 | function ); |
61 | |
|
62 | 0 | return( -1 ); |
63 | 0 | } |
64 | 0 | *floating_point = memory_allocate_structure( |
65 | 0 | libfvalue_floating_point_t ); |
66 | |
|
67 | 0 | if( *floating_point == NULL ) |
68 | 0 | { |
69 | 0 | libcerror_error_set( |
70 | 0 | error, |
71 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
72 | 0 | LIBCERROR_MEMORY_ERROR_INSUFFICIENT, |
73 | 0 | "%s: unable to create floating point.", |
74 | 0 | function ); |
75 | |
|
76 | 0 | goto on_error; |
77 | 0 | } |
78 | 0 | if( memory_set( |
79 | 0 | *floating_point, |
80 | 0 | 0, |
81 | 0 | sizeof( libfvalue_floating_point_t ) ) == NULL ) |
82 | 0 | { |
83 | 0 | libcerror_error_set( |
84 | 0 | error, |
85 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
86 | 0 | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
87 | 0 | "%s: unable to clear floating point.", |
88 | 0 | function ); |
89 | |
|
90 | 0 | goto on_error; |
91 | 0 | } |
92 | 0 | return( 1 ); |
93 | | |
94 | 0 | on_error: |
95 | 0 | if( *floating_point != NULL ) |
96 | 0 | { |
97 | 0 | memory_free( |
98 | 0 | *floating_point ); |
99 | |
|
100 | 0 | *floating_point = NULL; |
101 | 0 | } |
102 | 0 | return( -1 ); |
103 | 0 | } |
104 | | |
105 | | /* Frees a floating point |
106 | | * Returns 1 if successful or -1 on error |
107 | | */ |
108 | | int libfvalue_floating_point_free( |
109 | | libfvalue_floating_point_t **floating_point, |
110 | | libcerror_error_t **error ) |
111 | 0 | { |
112 | 0 | static char *function = "libfvalue_floating_point_free"; |
113 | |
|
114 | 0 | if( floating_point == NULL ) |
115 | 0 | { |
116 | 0 | libcerror_error_set( |
117 | 0 | error, |
118 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
119 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
120 | 0 | "%s: invalid floating point.", |
121 | 0 | function ); |
122 | |
|
123 | 0 | return( -1 ); |
124 | 0 | } |
125 | 0 | if( *floating_point != NULL ) |
126 | 0 | { |
127 | 0 | memory_free( |
128 | 0 | *floating_point ); |
129 | |
|
130 | 0 | *floating_point = NULL; |
131 | 0 | } |
132 | 0 | return( 1 ); |
133 | 0 | } |
134 | | |
135 | | /* Clones a floating point |
136 | | * Returns 1 if successful or -1 on error |
137 | | */ |
138 | | int libfvalue_floating_point_clone( |
139 | | libfvalue_floating_point_t **destination_floating_point, |
140 | | libfvalue_floating_point_t *source_floating_point, |
141 | | libcerror_error_t **error ) |
142 | 0 | { |
143 | 0 | static char *function = "libfvalue_floating_point_clone"; |
144 | |
|
145 | 0 | if( destination_floating_point == NULL ) |
146 | 0 | { |
147 | 0 | libcerror_error_set( |
148 | 0 | error, |
149 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
150 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
151 | 0 | "%s: invalid destination floating point.", |
152 | 0 | function ); |
153 | |
|
154 | 0 | return( -1 ); |
155 | 0 | } |
156 | 0 | if( *destination_floating_point != NULL ) |
157 | 0 | { |
158 | 0 | libcerror_error_set( |
159 | 0 | error, |
160 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
161 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET, |
162 | 0 | "%s: destination floating point already set.", |
163 | 0 | function ); |
164 | |
|
165 | 0 | return( -1 ); |
166 | 0 | } |
167 | 0 | if( source_floating_point == NULL ) |
168 | 0 | { |
169 | 0 | *destination_floating_point = NULL; |
170 | |
|
171 | 0 | return( 1 ); |
172 | 0 | } |
173 | 0 | *destination_floating_point = memory_allocate_structure( |
174 | 0 | libfvalue_floating_point_t ); |
175 | |
|
176 | 0 | if( *destination_floating_point == NULL ) |
177 | 0 | { |
178 | 0 | libcerror_error_set( |
179 | 0 | error, |
180 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
181 | 0 | LIBCERROR_MEMORY_ERROR_INSUFFICIENT, |
182 | 0 | "%s: unable to create destination floating point.", |
183 | 0 | function ); |
184 | |
|
185 | 0 | goto on_error; |
186 | 0 | } |
187 | 0 | if( memory_copy( |
188 | 0 | *destination_floating_point, |
189 | 0 | source_floating_point, |
190 | 0 | sizeof( libfvalue_floating_point_t ) ) == NULL ) |
191 | 0 | { |
192 | 0 | libcerror_error_set( |
193 | 0 | error, |
194 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
195 | 0 | LIBCERROR_MEMORY_ERROR_COPY_FAILED, |
196 | 0 | "%s: unable to copy floating point.", |
197 | 0 | function ); |
198 | |
|
199 | 0 | goto on_error; |
200 | 0 | } |
201 | 0 | return( 1 ); |
202 | | |
203 | 0 | on_error: |
204 | 0 | if( *destination_floating_point != NULL ) |
205 | 0 | { |
206 | 0 | memory_free( |
207 | 0 | *destination_floating_point ); |
208 | |
|
209 | 0 | *destination_floating_point = NULL; |
210 | 0 | } |
211 | 0 | return( -1 ); |
212 | 0 | } |
213 | | |
214 | | /* Copies the floating point from a byte stream |
215 | | * Returns 1 if successful or -1 on error |
216 | | */ |
217 | | int libfvalue_floating_point_copy_from_byte_stream( |
218 | | libfvalue_floating_point_t *floating_point, |
219 | | const uint8_t *byte_stream, |
220 | | size_t byte_stream_size, |
221 | | int encoding, |
222 | | libcerror_error_t **error ) |
223 | 0 | { |
224 | 0 | static char *function = "libfvalue_floating_point_copy_from_byte_stream"; |
225 | |
|
226 | 0 | if( floating_point == NULL ) |
227 | 0 | { |
228 | 0 | libcerror_error_set( |
229 | 0 | error, |
230 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
231 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
232 | 0 | "%s: invalid floating point.", |
233 | 0 | function ); |
234 | |
|
235 | 0 | return( -1 ); |
236 | 0 | } |
237 | 0 | if( byte_stream == NULL ) |
238 | 0 | { |
239 | 0 | libcerror_error_set( |
240 | 0 | error, |
241 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
242 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
243 | 0 | "%s: invalid byte stream.", |
244 | 0 | function ); |
245 | |
|
246 | 0 | return( -1 ); |
247 | 0 | } |
248 | 0 | if( byte_stream_size > (size_t) SSIZE_MAX ) |
249 | 0 | { |
250 | 0 | libcerror_error_set( |
251 | 0 | error, |
252 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
253 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
254 | 0 | "%s: invalid byte stream size value exceeds maximum.", |
255 | 0 | function ); |
256 | |
|
257 | 0 | return( -1 ); |
258 | 0 | } |
259 | 0 | if( ( encoding != LIBFVALUE_ENDIAN_BIG ) |
260 | 0 | && ( encoding != LIBFVALUE_ENDIAN_LITTLE ) |
261 | 0 | && ( encoding != LIBFVALUE_ENDIAN_NATIVE ) ) |
262 | 0 | { |
263 | 0 | libcerror_error_set( |
264 | 0 | error, |
265 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
266 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
267 | 0 | "%s: unsupported encoding.", |
268 | 0 | function ); |
269 | |
|
270 | 0 | return( -1 ); |
271 | 0 | } |
272 | 0 | switch( byte_stream_size ) |
273 | 0 | { |
274 | 0 | case 4: |
275 | 0 | if( encoding == LIBFVALUE_ENDIAN_BIG ) |
276 | 0 | { |
277 | 0 | byte_stream_copy_to_uint32_big_endian( |
278 | 0 | byte_stream, |
279 | 0 | floating_point->value ); |
280 | 0 | } |
281 | 0 | else if( encoding == LIBFVALUE_ENDIAN_LITTLE ) |
282 | 0 | { |
283 | 0 | byte_stream_copy_to_uint32_little_endian( |
284 | 0 | byte_stream, |
285 | 0 | floating_point->value ); |
286 | 0 | } |
287 | 0 | else |
288 | 0 | { |
289 | 0 | floating_point->value = (uint64_t) *( (uint32_t *) byte_stream ); |
290 | 0 | } |
291 | 0 | break; |
292 | | |
293 | 0 | case 8: |
294 | 0 | if( encoding == LIBFVALUE_ENDIAN_BIG ) |
295 | 0 | { |
296 | 0 | byte_stream_copy_to_uint64_big_endian( |
297 | 0 | byte_stream, |
298 | 0 | floating_point->value ); |
299 | 0 | } |
300 | 0 | else if( encoding == LIBFVALUE_ENDIAN_LITTLE ) |
301 | 0 | { |
302 | 0 | byte_stream_copy_to_uint64_little_endian( |
303 | 0 | byte_stream, |
304 | 0 | floating_point->value ); |
305 | 0 | } |
306 | 0 | else |
307 | 0 | { |
308 | 0 | floating_point->value = (uint64_t) *( (uint64_t *) byte_stream ); |
309 | 0 | } |
310 | 0 | break; |
311 | | |
312 | 0 | default: |
313 | 0 | libcerror_error_set( |
314 | 0 | error, |
315 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
316 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
317 | 0 | "%s: unsupported byte stream size: %" PRIzd ".", |
318 | 0 | function, |
319 | 0 | byte_stream_size ); |
320 | |
|
321 | 0 | return( -1 ); |
322 | 0 | } |
323 | 0 | floating_point->value_size = byte_stream_size * 8; |
324 | |
|
325 | 0 | return( 1 ); |
326 | 0 | } |
327 | | |
328 | | /* Copies the floating point from an integer value |
329 | | * Returns 1 if successful or -1 on error |
330 | | */ |
331 | | int libfvalue_floating_point_copy_from_integer( |
332 | | libfvalue_floating_point_t *floating_point, |
333 | | uint64_t integer_value, |
334 | | size_t integer_value_size, |
335 | | libcerror_error_t **error ) |
336 | 0 | { |
337 | 0 | byte_stream_float64_t value_float64; |
338 | |
|
339 | 0 | static char *function = "libfvalue_floating_point_copy_from_integer"; |
340 | |
|
341 | 0 | if( floating_point == NULL ) |
342 | 0 | { |
343 | 0 | libcerror_error_set( |
344 | 0 | error, |
345 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
346 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
347 | 0 | "%s: invalid floating point.", |
348 | 0 | function ); |
349 | |
|
350 | 0 | return( -1 ); |
351 | 0 | } |
352 | 0 | if( ( integer_value_size != 32 ) |
353 | 0 | && ( integer_value_size != 64 ) ) |
354 | 0 | { |
355 | 0 | libcerror_error_set( |
356 | 0 | error, |
357 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
358 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
359 | 0 | "%s: unsupported integer value size.", |
360 | 0 | function ); |
361 | |
|
362 | 0 | return( -1 ); |
363 | 0 | } |
364 | 0 | value_float64.floating_point = (double) integer_value; |
365 | 0 | floating_point->value = value_float64.integer; |
366 | 0 | floating_point->value_size = 64; |
367 | |
|
368 | 0 | return( 1 ); |
369 | 0 | } |
370 | | |
371 | | /* Copies the floating point to an integer value |
372 | | * Returns 1 if successful or -1 on error |
373 | | */ |
374 | | int libfvalue_floating_point_copy_to_integer( |
375 | | libfvalue_floating_point_t *floating_point, |
376 | | uint64_t *integer_value, |
377 | | size_t *integer_value_size, |
378 | | libcerror_error_t **error ) |
379 | 0 | { |
380 | 0 | byte_stream_float64_t value_float64; |
381 | |
|
382 | 0 | static char *function = "libfvalue_floating_point_copy_to_integer"; |
383 | |
|
384 | 0 | if( floating_point == NULL ) |
385 | 0 | { |
386 | 0 | libcerror_error_set( |
387 | 0 | error, |
388 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
389 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
390 | 0 | "%s: invalid floating point.", |
391 | 0 | function ); |
392 | |
|
393 | 0 | return( -1 ); |
394 | 0 | } |
395 | 0 | if( integer_value == NULL ) |
396 | 0 | { |
397 | 0 | libcerror_error_set( |
398 | 0 | error, |
399 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
400 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
401 | 0 | "%s: invalid integer value.", |
402 | 0 | function ); |
403 | |
|
404 | 0 | return( -1 ); |
405 | 0 | } |
406 | 0 | if( integer_value_size == NULL ) |
407 | 0 | { |
408 | 0 | libcerror_error_set( |
409 | 0 | error, |
410 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
411 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
412 | 0 | "%s: invalid integer value size.", |
413 | 0 | function ); |
414 | |
|
415 | 0 | return( -1 ); |
416 | 0 | } |
417 | 0 | value_float64.integer = floating_point->value; |
418 | 0 | *integer_value = (uint64_t) value_float64.floating_point; |
419 | 0 | *integer_value_size = 64; |
420 | |
|
421 | 0 | return( 1 ); |
422 | 0 | } |
423 | | |
424 | | /* Copies the floating point from a floating point value |
425 | | * Returns 1 if successful or -1 on error |
426 | | */ |
427 | | int libfvalue_floating_point_copy_from_floating_point( |
428 | | libfvalue_floating_point_t *floating_point, |
429 | | double floating_point_value, |
430 | | size_t floating_point_value_size, |
431 | | libcerror_error_t **error ) |
432 | 0 | { |
433 | 0 | byte_stream_float64_t value_float64; |
434 | |
|
435 | 0 | static char *function = "libfvalue_floating_point_copy_from_floating_point"; |
436 | |
|
437 | 0 | if( floating_point == NULL ) |
438 | 0 | { |
439 | 0 | libcerror_error_set( |
440 | 0 | error, |
441 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
442 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
443 | 0 | "%s: invalid floating point.", |
444 | 0 | function ); |
445 | |
|
446 | 0 | return( -1 ); |
447 | 0 | } |
448 | 0 | if( ( floating_point_value_size != 32 ) |
449 | 0 | && ( floating_point_value_size != 64 ) ) |
450 | 0 | { |
451 | 0 | libcerror_error_set( |
452 | 0 | error, |
453 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
454 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
455 | 0 | "%s: unsupported floating point value size.", |
456 | 0 | function ); |
457 | |
|
458 | 0 | return( -1 ); |
459 | 0 | } |
460 | 0 | value_float64.floating_point = floating_point_value; |
461 | 0 | floating_point->value = value_float64.integer; |
462 | 0 | floating_point->value_size = 64; |
463 | |
|
464 | 0 | return( 1 ); |
465 | 0 | } |
466 | | |
467 | | /* Copies the floating point to a floating point value |
468 | | * Returns 1 if successful or -1 on error |
469 | | */ |
470 | | int libfvalue_floating_point_copy_to_floating_point( |
471 | | libfvalue_floating_point_t *floating_point, |
472 | | double *floating_point_value, |
473 | | size_t *floating_point_value_size, |
474 | | libcerror_error_t **error ) |
475 | 0 | { |
476 | 0 | byte_stream_float64_t value_float64; |
477 | |
|
478 | 0 | static char *function = "libfvalue_floating_point_copy_to_floating_point"; |
479 | |
|
480 | 0 | if( floating_point == NULL ) |
481 | 0 | { |
482 | 0 | libcerror_error_set( |
483 | 0 | error, |
484 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
485 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
486 | 0 | "%s: invalid floating point.", |
487 | 0 | function ); |
488 | |
|
489 | 0 | return( -1 ); |
490 | 0 | } |
491 | 0 | if( floating_point_value == NULL ) |
492 | 0 | { |
493 | 0 | libcerror_error_set( |
494 | 0 | error, |
495 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
496 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
497 | 0 | "%s: invalid floating point value.", |
498 | 0 | function ); |
499 | |
|
500 | 0 | return( -1 ); |
501 | 0 | } |
502 | 0 | if( floating_point_value_size == NULL ) |
503 | 0 | { |
504 | 0 | libcerror_error_set( |
505 | 0 | error, |
506 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
507 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
508 | 0 | "%s: invalid floating point value size.", |
509 | 0 | function ); |
510 | |
|
511 | 0 | return( -1 ); |
512 | 0 | } |
513 | 0 | value_float64.integer = floating_point->value; |
514 | 0 | *floating_point_value = (double) value_float64.floating_point; |
515 | 0 | *floating_point_value_size = 64; |
516 | |
|
517 | 0 | return( 1 ); |
518 | 0 | } |
519 | | |
520 | | /* Retrieves the size of a string of the floating point |
521 | | * Returns 1 if successful or -1 on error |
522 | | */ |
523 | | int libfvalue_floating_point_get_string_size( |
524 | | libfvalue_floating_point_t *floating_point, |
525 | | size_t *string_size, |
526 | | uint32_t string_format_flags, |
527 | | libcerror_error_t **error ) |
528 | 0 | { |
529 | 0 | static char *function = "libfvalue_floating_point_get_string_size"; |
530 | |
|
531 | 0 | if( floating_point == NULL ) |
532 | 0 | { |
533 | 0 | libcerror_error_set( |
534 | 0 | error, |
535 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
536 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
537 | 0 | "%s: invalid floating point.", |
538 | 0 | function ); |
539 | |
|
540 | 0 | return( -1 ); |
541 | 0 | } |
542 | 0 | if( libfvalue_string_size_from_floating_point( |
543 | 0 | string_size, |
544 | 0 | floating_point->value, |
545 | 0 | floating_point->value_size, |
546 | 0 | string_format_flags, |
547 | 0 | error ) != 1 ) |
548 | 0 | { |
549 | 0 | libcerror_error_set( |
550 | 0 | error, |
551 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
552 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
553 | 0 | "%s: unable to determine size of string of %" PRIzd "-bit floating point.", |
554 | 0 | function, |
555 | 0 | floating_point->value_size ); |
556 | |
|
557 | 0 | return( -1 ); |
558 | 0 | } |
559 | 0 | return( 1 ); |
560 | 0 | } |
561 | | |
562 | | /* Copies the floating point from an UTF-8 encoded string |
563 | | * Returns 1 if successful or -1 on error |
564 | | */ |
565 | | int libfvalue_floating_point_copy_from_utf8_string_with_index( |
566 | | libfvalue_floating_point_t *floating_point, |
567 | | uint8_t *utf8_string, |
568 | | size_t utf8_string_length, |
569 | | size_t *utf8_string_index, |
570 | | uint32_t string_format_flags, |
571 | | libcerror_error_t **error ) |
572 | 0 | { |
573 | 0 | static char *function = "libfvalue_floating_point_copy_from_utf8_string_with_index"; |
574 | |
|
575 | 0 | if( floating_point == NULL ) |
576 | 0 | { |
577 | 0 | libcerror_error_set( |
578 | 0 | error, |
579 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
580 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
581 | 0 | "%s: invalid floating point.", |
582 | 0 | function ); |
583 | |
|
584 | 0 | return( -1 ); |
585 | 0 | } |
586 | 0 | if( libfvalue_utf8_string_with_index_copy_to_floating_point( |
587 | 0 | utf8_string, |
588 | 0 | utf8_string_length, |
589 | 0 | utf8_string_index, |
590 | 0 | &( floating_point->value ), |
591 | 0 | floating_point->value_size, |
592 | 0 | string_format_flags, |
593 | 0 | error ) != 1 ) |
594 | 0 | { |
595 | 0 | libcerror_error_set( |
596 | 0 | error, |
597 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
598 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
599 | 0 | "%s: unable to copy %" PRIzd "-bit floating point from UTF-8 string.", |
600 | 0 | function, |
601 | 0 | floating_point->value_size ); |
602 | |
|
603 | 0 | return( -1 ); |
604 | 0 | } |
605 | 0 | return( 1 ); |
606 | 0 | } |
607 | | |
608 | | /* Copies the floating point to an UTF-8 encoded string |
609 | | * Returns 1 if successful or -1 on error |
610 | | */ |
611 | | int libfvalue_floating_point_copy_to_utf8_string_with_index( |
612 | | libfvalue_floating_point_t *floating_point, |
613 | | uint8_t *utf8_string, |
614 | | size_t utf8_string_size, |
615 | | size_t *utf8_string_index, |
616 | | uint32_t string_format_flags, |
617 | | libcerror_error_t **error ) |
618 | 0 | { |
619 | 0 | static char *function = "libfvalue_floating_point_copy_to_utf8_string_with_index"; |
620 | |
|
621 | 0 | if( floating_point == NULL ) |
622 | 0 | { |
623 | 0 | libcerror_error_set( |
624 | 0 | error, |
625 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
626 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
627 | 0 | "%s: invalid floating point.", |
628 | 0 | function ); |
629 | |
|
630 | 0 | return( -1 ); |
631 | 0 | } |
632 | 0 | if( libfvalue_utf8_string_with_index_copy_from_floating_point( |
633 | 0 | utf8_string, |
634 | 0 | utf8_string_size, |
635 | 0 | utf8_string_index, |
636 | 0 | floating_point->value, |
637 | 0 | floating_point->value_size, |
638 | 0 | string_format_flags, |
639 | 0 | error ) != 1 ) |
640 | 0 | { |
641 | 0 | libcerror_error_set( |
642 | 0 | error, |
643 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
644 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
645 | 0 | "%s: unable to copy %" PRIzd "-bit floating point to UTF-8 string.", |
646 | 0 | function, |
647 | 0 | floating_point->value_size ); |
648 | |
|
649 | 0 | return( -1 ); |
650 | 0 | } |
651 | 0 | return( 1 ); |
652 | 0 | } |
653 | | |
654 | | /* Copies the floating point from an UTF-16 encoded string |
655 | | * Returns 1 if successful or -1 on error |
656 | | */ |
657 | | int libfvalue_floating_point_copy_from_utf16_string_with_index( |
658 | | libfvalue_floating_point_t *floating_point, |
659 | | uint16_t *utf16_string, |
660 | | size_t utf16_string_length, |
661 | | size_t *utf16_string_index, |
662 | | uint32_t string_format_flags, |
663 | | libcerror_error_t **error ) |
664 | 0 | { |
665 | 0 | static char *function = "libfvalue_floating_point_copy_from_utf16_string_with_index"; |
666 | |
|
667 | 0 | if( floating_point == NULL ) |
668 | 0 | { |
669 | 0 | libcerror_error_set( |
670 | 0 | error, |
671 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
672 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
673 | 0 | "%s: invalid floating point.", |
674 | 0 | function ); |
675 | |
|
676 | 0 | return( -1 ); |
677 | 0 | } |
678 | 0 | if( libfvalue_utf16_string_with_index_copy_to_floating_point( |
679 | 0 | utf16_string, |
680 | 0 | utf16_string_length, |
681 | 0 | utf16_string_index, |
682 | 0 | &( floating_point->value ), |
683 | 0 | floating_point->value_size, |
684 | 0 | string_format_flags, |
685 | 0 | error ) != 1 ) |
686 | 0 | { |
687 | 0 | libcerror_error_set( |
688 | 0 | error, |
689 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
690 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
691 | 0 | "%s: unable to copy %" PRIzd "-bit floating point from UTF-16 string.", |
692 | 0 | function, |
693 | 0 | floating_point->value_size ); |
694 | |
|
695 | 0 | return( -1 ); |
696 | 0 | } |
697 | 0 | return( 1 ); |
698 | 0 | } |
699 | | |
700 | | /* Copies the floating point to an UTF-16 encoded string |
701 | | * Returns 1 if successful or -1 on error |
702 | | */ |
703 | | int libfvalue_floating_point_copy_to_utf16_string_with_index( |
704 | | libfvalue_floating_point_t *floating_point, |
705 | | uint16_t *utf16_string, |
706 | | size_t utf16_string_size, |
707 | | size_t *utf16_string_index, |
708 | | uint32_t string_format_flags, |
709 | | libcerror_error_t **error ) |
710 | 0 | { |
711 | 0 | static char *function = "libfvalue_floating_point_copy_to_utf16_string_with_index"; |
712 | |
|
713 | 0 | if( floating_point == NULL ) |
714 | 0 | { |
715 | 0 | libcerror_error_set( |
716 | 0 | error, |
717 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
718 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
719 | 0 | "%s: invalid floating point.", |
720 | 0 | function ); |
721 | |
|
722 | 0 | return( -1 ); |
723 | 0 | } |
724 | 0 | if( libfvalue_utf16_string_with_index_copy_from_floating_point( |
725 | 0 | utf16_string, |
726 | 0 | utf16_string_size, |
727 | 0 | utf16_string_index, |
728 | 0 | floating_point->value, |
729 | 0 | floating_point->value_size, |
730 | 0 | string_format_flags, |
731 | 0 | error ) != 1 ) |
732 | 0 | { |
733 | 0 | libcerror_error_set( |
734 | 0 | error, |
735 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
736 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
737 | 0 | "%s: unable to copy %" PRIzd "-bit floating point to UTF-16 string.", |
738 | 0 | function, |
739 | 0 | floating_point->value_size ); |
740 | |
|
741 | 0 | return( -1 ); |
742 | 0 | } |
743 | 0 | return( 1 ); |
744 | 0 | } |
745 | | |
746 | | /* Copies the floating point from an UTF-32 encoded string |
747 | | * Returns 1 if successful or -1 on error |
748 | | */ |
749 | | int libfvalue_floating_point_copy_from_utf32_string_with_index( |
750 | | libfvalue_floating_point_t *floating_point, |
751 | | uint32_t *utf32_string, |
752 | | size_t utf32_string_length, |
753 | | size_t *utf32_string_index, |
754 | | uint32_t string_format_flags, |
755 | | libcerror_error_t **error ) |
756 | 0 | { |
757 | 0 | static char *function = "libfvalue_floating_point_copy_from_utf32_string_with_index"; |
758 | |
|
759 | 0 | if( floating_point == NULL ) |
760 | 0 | { |
761 | 0 | libcerror_error_set( |
762 | 0 | error, |
763 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
764 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
765 | 0 | "%s: invalid floating point.", |
766 | 0 | function ); |
767 | |
|
768 | 0 | return( -1 ); |
769 | 0 | } |
770 | 0 | if( libfvalue_utf32_string_with_index_copy_to_floating_point( |
771 | 0 | utf32_string, |
772 | 0 | utf32_string_length, |
773 | 0 | utf32_string_index, |
774 | 0 | &( floating_point->value ), |
775 | 0 | floating_point->value_size, |
776 | 0 | string_format_flags, |
777 | 0 | error ) != 1 ) |
778 | 0 | { |
779 | 0 | libcerror_error_set( |
780 | 0 | error, |
781 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
782 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
783 | 0 | "%s: unable to copy %" PRIzd "-bit floating point from UTF-32 string.", |
784 | 0 | function, |
785 | 0 | floating_point->value_size ); |
786 | |
|
787 | 0 | return( -1 ); |
788 | 0 | } |
789 | 0 | return( 1 ); |
790 | 0 | } |
791 | | |
792 | | /* Copies the floating point to an UTF-32 encoded string |
793 | | * Returns 1 if successful or -1 on error |
794 | | */ |
795 | | int libfvalue_floating_point_copy_to_utf32_string_with_index( |
796 | | libfvalue_floating_point_t *floating_point, |
797 | | uint32_t *utf32_string, |
798 | | size_t utf32_string_size, |
799 | | size_t *utf32_string_index, |
800 | | uint32_t string_format_flags, |
801 | | libcerror_error_t **error ) |
802 | 0 | { |
803 | 0 | static char *function = "libfvalue_floating_point_copy_to_utf32_string_with_index"; |
804 | |
|
805 | 0 | if( floating_point == NULL ) |
806 | 0 | { |
807 | 0 | libcerror_error_set( |
808 | 0 | error, |
809 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
810 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
811 | 0 | "%s: invalid floating point.", |
812 | 0 | function ); |
813 | |
|
814 | 0 | return( -1 ); |
815 | 0 | } |
816 | 0 | if( libfvalue_utf32_string_with_index_copy_from_floating_point( |
817 | 0 | utf32_string, |
818 | 0 | utf32_string_size, |
819 | 0 | utf32_string_index, |
820 | 0 | floating_point->value, |
821 | 0 | floating_point->value_size, |
822 | 0 | string_format_flags, |
823 | 0 | error ) != 1 ) |
824 | 0 | { |
825 | 0 | libcerror_error_set( |
826 | 0 | error, |
827 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
828 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
829 | 0 | "%s: unable to copy %" PRIzd "-bit floating point to UTF-32 string.", |
830 | 0 | function, |
831 | 0 | floating_point->value_size ); |
832 | |
|
833 | 0 | return( -1 ); |
834 | 0 | } |
835 | 0 | return( 1 ); |
836 | 0 | } |
837 | | |
838 | | /* Determines the size of a string of a floating point value |
839 | | * The floating_point value size is in bits |
840 | | * Returns 1 if successful or -1 on error |
841 | | */ |
842 | | int libfvalue_string_size_from_floating_point( |
843 | | size_t *string_size, |
844 | | uint64_t floating_point_value, |
845 | | size_t floating_point_value_size, |
846 | | uint32_t string_format_flags, |
847 | | libcerror_error_t **error ) |
848 | 0 | { |
849 | 0 | static char *function = "libfvalue_string_size_from_floating_point"; |
850 | 0 | size_t safe_string_size = 0; |
851 | 0 | uint32_t string_format_type = 0; |
852 | 0 | uint32_t supported_flags = 0; |
853 | 0 | uint8_t is_indeterminate = 0; |
854 | 0 | uint8_t is_infinite = 0; |
855 | 0 | uint8_t is_not_a_number = 0; |
856 | 0 | uint8_t is_signed = 0; |
857 | 0 | int8_t bit_shift = 0; |
858 | |
|
859 | 0 | if( string_size == NULL ) |
860 | 0 | { |
861 | 0 | libcerror_error_set( |
862 | 0 | error, |
863 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
864 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
865 | 0 | "%s: invalid string size.", |
866 | 0 | function ); |
867 | |
|
868 | 0 | return( -1 ); |
869 | 0 | } |
870 | 0 | if( ( floating_point_value_size != 32 ) |
871 | 0 | && ( floating_point_value_size != 64 ) ) |
872 | 0 | { |
873 | 0 | libcerror_error_set( |
874 | 0 | error, |
875 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
876 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
877 | 0 | "%s: unsupported floating point value size.", |
878 | 0 | function ); |
879 | |
|
880 | 0 | return( -1 ); |
881 | 0 | } |
882 | 0 | supported_flags = 0x000000ffUL; |
883 | |
|
884 | 0 | if( ( string_format_flags & ~( supported_flags ) ) != 0 ) |
885 | 0 | { |
886 | 0 | libcerror_error_set( |
887 | 0 | error, |
888 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
889 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
890 | 0 | "%s: unsupported string format flags: 0x%08" PRIx32 ".", |
891 | 0 | function, |
892 | 0 | string_format_flags ); |
893 | |
|
894 | 0 | return( -1 ); |
895 | 0 | } |
896 | 0 | string_format_type = string_format_flags & 0x000000ffUL; |
897 | |
|
898 | 0 | if( ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_DECIMAL ) |
899 | 0 | && ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) ) |
900 | 0 | { |
901 | 0 | libcerror_error_set( |
902 | 0 | error, |
903 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
904 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
905 | 0 | "%s: unsupported string format type.", |
906 | 0 | function ); |
907 | |
|
908 | 0 | return( -1 ); |
909 | 0 | } |
910 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
911 | 0 | { |
912 | 0 | safe_string_size = ( floating_point_value_size >> 2 ) + 3; |
913 | 0 | } |
914 | 0 | else |
915 | 0 | { |
916 | 0 | bit_shift = (uint8_t) ( floating_point_value_size - 1 ); |
917 | 0 | is_signed = (uint8_t) ( floating_point_value >> bit_shift ); |
918 | |
|
919 | 0 | if( is_signed != 0 ) |
920 | 0 | { |
921 | 0 | floating_point_value &= ~( (uint64_t) 1 << bit_shift ); |
922 | 0 | } |
923 | 0 | switch( floating_point_value_size ) |
924 | 0 | { |
925 | 0 | case 32: |
926 | 0 | if( floating_point_value == 0x7f800000UL ) |
927 | 0 | { |
928 | 0 | is_infinite = 1; |
929 | 0 | } |
930 | 0 | else if( ( is_signed != 0 ) |
931 | 0 | && ( floating_point_value == 0x7fc00000UL ) ) |
932 | 0 | { |
933 | 0 | is_indeterminate = 1; |
934 | 0 | } |
935 | 0 | else if( ( floating_point_value >= 0x7f800001UL ) |
936 | 0 | && ( floating_point_value <= 0x7fffffffUL ) ) |
937 | 0 | { |
938 | 0 | is_not_a_number = 1; |
939 | 0 | } |
940 | 0 | break; |
941 | | |
942 | 0 | case 64: |
943 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
944 | | if( floating_point_value == 0x7ff0000000000000UL ) |
945 | | #else |
946 | 0 | if( floating_point_value == 0x7ff0000000000000ULL ) |
947 | 0 | #endif |
948 | 0 | { |
949 | 0 | is_infinite = 1; |
950 | 0 | } |
951 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
952 | | else if( ( is_signed != 0 ) |
953 | | && ( floating_point_value == 0x7ff8000000000000UL ) ) |
954 | | #else |
955 | 0 | else if( ( is_signed != 0 ) |
956 | 0 | && ( floating_point_value == 0x7ff8000000000000ULL ) ) |
957 | 0 | #endif |
958 | 0 | { |
959 | 0 | is_indeterminate = 1; |
960 | 0 | } |
961 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
962 | | else if( ( floating_point_value >= 0x7ff0000000000001UL ) |
963 | | && ( floating_point_value <= 0x7fffffffffffffffUL ) ) |
964 | | #else |
965 | 0 | else if( ( floating_point_value >= 0x7ff0000000000001ULL ) |
966 | 0 | && ( floating_point_value <= 0x7fffffffffffffffULL ) ) |
967 | 0 | #endif |
968 | 0 | { |
969 | 0 | is_not_a_number = 1; |
970 | 0 | } |
971 | 0 | break; |
972 | 0 | } |
973 | 0 | if( is_indeterminate != 0 ) |
974 | 0 | { |
975 | | /* "Ind\x00" */ |
976 | 0 | safe_string_size = 4; |
977 | 0 | } |
978 | 0 | else if( is_infinite != 0 ) |
979 | 0 | { |
980 | | /* "Inf\x00" */ |
981 | 0 | safe_string_size = 4; |
982 | 0 | } |
983 | 0 | else if( is_not_a_number != 0 ) |
984 | 0 | { |
985 | | /* "Nan\x00" */ |
986 | 0 | safe_string_size = 4; |
987 | 0 | } |
988 | 0 | else |
989 | 0 | { |
990 | | /* "[-]0.000000e[+-]000\x00" */ |
991 | 0 | if( is_signed != 0 ) |
992 | 0 | { |
993 | 0 | safe_string_size = 15; |
994 | 0 | } |
995 | 0 | else |
996 | 0 | { |
997 | 0 | safe_string_size = 14; |
998 | 0 | } |
999 | 0 | } |
1000 | 0 | } |
1001 | 0 | *string_size = safe_string_size; |
1002 | |
|
1003 | 0 | return( 1 ); |
1004 | 0 | } |
1005 | | |
1006 | | /* Copies an UTF-8 encoded string from a floating point value |
1007 | | * The floating_point value size is in bits |
1008 | | * Returns 1 if successful or -1 on error |
1009 | | */ |
1010 | | int libfvalue_utf8_string_copy_from_floating_point( |
1011 | | uint8_t *utf8_string, |
1012 | | size_t utf8_string_size, |
1013 | | uint64_t floating_point_value, |
1014 | | size_t floating_point_value_size, |
1015 | | uint32_t string_format_flags, |
1016 | | libcerror_error_t **error ) |
1017 | 0 | { |
1018 | 0 | static char *function = "libfvalue_utf8_string_copy_from_floating_point"; |
1019 | 0 | size_t utf8_string_index = 0; |
1020 | |
|
1021 | 0 | if( libfvalue_utf8_string_with_index_copy_from_floating_point( |
1022 | 0 | utf8_string, |
1023 | 0 | utf8_string_size, |
1024 | 0 | &utf8_string_index, |
1025 | 0 | floating_point_value, |
1026 | 0 | floating_point_value_size, |
1027 | 0 | string_format_flags, |
1028 | 0 | error ) != 1 ) |
1029 | 0 | { |
1030 | 0 | libcerror_error_set( |
1031 | 0 | error, |
1032 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1033 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
1034 | 0 | "%s: unable to copy floating point value to UTF-8 string.", |
1035 | 0 | function ); |
1036 | |
|
1037 | 0 | return( -1 ); |
1038 | 0 | } |
1039 | 0 | return( 1 ); |
1040 | 0 | } |
1041 | | |
1042 | | /* Copies an UTF-8 encoded string of from floating_point value |
1043 | | * The floating_point value size is in bits |
1044 | | * Returns 1 if successful or -1 on error |
1045 | | */ |
1046 | | int libfvalue_utf8_string_with_index_copy_from_floating_point( |
1047 | | uint8_t *utf8_string, |
1048 | | size_t utf8_string_size, |
1049 | | size_t *utf8_string_index, |
1050 | | uint64_t floating_point_value, |
1051 | | size_t floating_point_value_size, |
1052 | | uint32_t string_format_flags, |
1053 | | libcerror_error_t **error ) |
1054 | 0 | { |
1055 | 0 | byte_stream_float32_t value_float32; |
1056 | 0 | byte_stream_float64_t value_float64; |
1057 | |
|
1058 | 0 | static char *function = "libfvalue_utf8_string_with_index_copy_from_floating_point"; |
1059 | 0 | size_t safe_utf8_string_index = 0; |
1060 | 0 | uint64_t divider = 0; |
1061 | 0 | uint64_t value_fraction = 0; |
1062 | 0 | uint32_t string_format_type = 0; |
1063 | 0 | uint32_t supported_flags = 0; |
1064 | 0 | int16_t exponent10 = 0; |
1065 | 0 | int16_t exponent2 = 0; |
1066 | 0 | uint8_t byte_value = 0; |
1067 | 0 | uint8_t digit_index = 0; |
1068 | 0 | uint8_t exponent_sign = 0; |
1069 | 0 | uint8_t is_indeterminate = 0; |
1070 | 0 | uint8_t is_infinite = 0; |
1071 | 0 | uint8_t is_not_a_number = 0; |
1072 | 0 | uint8_t is_signed = 0; |
1073 | 0 | uint8_t number_of_characters = 0; |
1074 | 0 | int8_t bit_shift = 0; |
1075 | 0 | double exponent_value = 0.0; |
1076 | 0 | double value_float = 0.0; |
1077 | |
|
1078 | 0 | if( utf8_string == NULL ) |
1079 | 0 | { |
1080 | 0 | libcerror_error_set( |
1081 | 0 | error, |
1082 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1083 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1084 | 0 | "%s: invalid UTF-8 string.", |
1085 | 0 | function ); |
1086 | |
|
1087 | 0 | return( -1 ); |
1088 | 0 | } |
1089 | 0 | if( utf8_string_size > (size_t) SSIZE_MAX ) |
1090 | 0 | { |
1091 | 0 | libcerror_error_set( |
1092 | 0 | error, |
1093 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1094 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
1095 | 0 | "%s: invalid UTF-8 string size value exceeds maximum.", |
1096 | 0 | function ); |
1097 | |
|
1098 | 0 | return( -1 ); |
1099 | 0 | } |
1100 | 0 | if( utf8_string_index == NULL ) |
1101 | 0 | { |
1102 | 0 | libcerror_error_set( |
1103 | 0 | error, |
1104 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1105 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1106 | 0 | "%s: invalid UTF-8 string index.", |
1107 | 0 | function ); |
1108 | |
|
1109 | 0 | return( -1 ); |
1110 | 0 | } |
1111 | 0 | if( *utf8_string_index >= utf8_string_size ) |
1112 | 0 | { |
1113 | 0 | libcerror_error_set( |
1114 | 0 | error, |
1115 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1116 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
1117 | 0 | "%s: invalid UTF-8 string index value out of bounds.", |
1118 | 0 | function ); |
1119 | |
|
1120 | 0 | return( -1 ); |
1121 | 0 | } |
1122 | 0 | safe_utf8_string_index = *utf8_string_index; |
1123 | |
|
1124 | 0 | if( ( floating_point_value_size != 32 ) |
1125 | 0 | && ( floating_point_value_size != 64 ) ) |
1126 | 0 | { |
1127 | 0 | libcerror_error_set( |
1128 | 0 | error, |
1129 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1130 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
1131 | 0 | "%s: unsupported floating point value size.", |
1132 | 0 | function ); |
1133 | |
|
1134 | 0 | return( -1 ); |
1135 | 0 | } |
1136 | 0 | supported_flags = 0x000000ffUL; |
1137 | |
|
1138 | 0 | if( ( string_format_flags & ~( supported_flags ) ) != 0 ) |
1139 | 0 | { |
1140 | 0 | libcerror_error_set( |
1141 | 0 | error, |
1142 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1143 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
1144 | 0 | "%s: unsupported string format flags: 0x%08" PRIx32 ".", |
1145 | 0 | function, |
1146 | 0 | string_format_flags ); |
1147 | |
|
1148 | 0 | return( -1 ); |
1149 | 0 | } |
1150 | 0 | string_format_type = string_format_flags & 0x000000ffUL; |
1151 | |
|
1152 | 0 | if( ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_DECIMAL ) |
1153 | 0 | && ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) ) |
1154 | 0 | { |
1155 | 0 | libcerror_error_set( |
1156 | 0 | error, |
1157 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1158 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
1159 | 0 | "%s: unsupported string format type.", |
1160 | 0 | function ); |
1161 | |
|
1162 | 0 | return( -1 ); |
1163 | 0 | } |
1164 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
1165 | 0 | { |
1166 | 0 | number_of_characters = (uint8_t) ( floating_point_value_size >> 2 ) + 3; |
1167 | 0 | } |
1168 | 0 | else |
1169 | 0 | { |
1170 | 0 | bit_shift = (uint8_t) ( floating_point_value_size - 1 ); |
1171 | 0 | is_signed = (uint8_t) ( floating_point_value >> bit_shift ); |
1172 | |
|
1173 | 0 | if( is_signed != 0 ) |
1174 | 0 | { |
1175 | 0 | floating_point_value &= ~( (uint64_t) 1 << bit_shift ); |
1176 | 0 | } |
1177 | 0 | switch( floating_point_value_size ) |
1178 | 0 | { |
1179 | 0 | case 32: |
1180 | 0 | if( floating_point_value == 0x7f800000UL ) |
1181 | 0 | { |
1182 | 0 | is_infinite = 1; |
1183 | 0 | } |
1184 | 0 | else if( ( is_signed != 0 ) |
1185 | 0 | && ( floating_point_value == 0x7fc00000UL ) ) |
1186 | 0 | { |
1187 | 0 | is_indeterminate = 1; |
1188 | 0 | } |
1189 | 0 | else if( ( floating_point_value >= 0x7f800001UL ) |
1190 | 0 | && ( floating_point_value <= 0x7fffffffUL ) ) |
1191 | 0 | { |
1192 | 0 | is_not_a_number = 1; |
1193 | 0 | } |
1194 | 0 | else if( floating_point_value != 0 ) |
1195 | 0 | { |
1196 | 0 | value_float32.integer = (uint32_t) floating_point_value; |
1197 | 0 | value_float = (double) value_float32.floating_point; |
1198 | |
|
1199 | 0 | exponent2 = (int16_t) ( floating_point_value >> 23 ); |
1200 | |
|
1201 | 0 | if( exponent2 == 0 ) |
1202 | 0 | { |
1203 | 0 | exponent2 = -126; |
1204 | 0 | } |
1205 | 0 | else |
1206 | 0 | { |
1207 | 0 | exponent2 -= 127; |
1208 | 0 | } |
1209 | 0 | } |
1210 | 0 | break; |
1211 | | |
1212 | 0 | case 64: |
1213 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
1214 | | if( floating_point_value == 0x7ff0000000000000UL ) |
1215 | | #else |
1216 | 0 | if( floating_point_value == 0x7ff0000000000000ULL ) |
1217 | 0 | #endif |
1218 | 0 | { |
1219 | 0 | is_infinite = 1; |
1220 | 0 | } |
1221 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
1222 | | else if( ( is_signed != 0 ) |
1223 | | && ( floating_point_value == 0x7ff8000000000000UL ) ) |
1224 | | #else |
1225 | 0 | else if( ( is_signed != 0 ) |
1226 | 0 | && ( floating_point_value == 0x7ff8000000000000ULL ) ) |
1227 | 0 | #endif |
1228 | 0 | { |
1229 | 0 | is_indeterminate = 1; |
1230 | 0 | } |
1231 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
1232 | | else if( ( floating_point_value >= 0x7ff0000000000001UL ) |
1233 | | && ( floating_point_value <= 0x7fffffffffffffffUL ) ) |
1234 | | #else |
1235 | 0 | else if( ( floating_point_value >= 0x7ff0000000000001ULL ) |
1236 | 0 | && ( floating_point_value <= 0x7fffffffffffffffULL ) ) |
1237 | 0 | #endif |
1238 | 0 | { |
1239 | 0 | is_not_a_number = 1; |
1240 | 0 | } |
1241 | 0 | else if( floating_point_value != 0 ) |
1242 | 0 | { |
1243 | 0 | value_float64.integer = (uint64_t) floating_point_value; |
1244 | 0 | value_float = (double) value_float64.floating_point; |
1245 | |
|
1246 | 0 | exponent2 = (int16_t) ( floating_point_value >> 52 ); |
1247 | |
|
1248 | 0 | if( exponent2 == 0 ) |
1249 | 0 | { |
1250 | 0 | exponent2 = -1023; |
1251 | 0 | } |
1252 | 0 | else |
1253 | 0 | { |
1254 | 0 | exponent2 -= 1023; |
1255 | 0 | } |
1256 | 0 | } |
1257 | 0 | break; |
1258 | 0 | } |
1259 | 0 | if( is_indeterminate != 0 ) |
1260 | 0 | { |
1261 | | /* "Ind\x00" */ |
1262 | 0 | number_of_characters = 4; |
1263 | 0 | } |
1264 | 0 | else if( is_infinite != 0 ) |
1265 | 0 | { |
1266 | | /* "Inf\x00" */ |
1267 | 0 | number_of_characters = 4; |
1268 | 0 | } |
1269 | 0 | else if( is_not_a_number != 0 ) |
1270 | 0 | { |
1271 | | /* "Nan\x00" */ |
1272 | 0 | number_of_characters = 4; |
1273 | 0 | } |
1274 | 0 | else |
1275 | 0 | { |
1276 | | /* "[-]0.000000e[+-]000\x00" */ |
1277 | 0 | if( is_signed != 0 ) |
1278 | 0 | { |
1279 | 0 | number_of_characters = 15; |
1280 | 0 | } |
1281 | 0 | else |
1282 | 0 | { |
1283 | 0 | number_of_characters = 14; |
1284 | 0 | } |
1285 | 0 | } |
1286 | 0 | } |
1287 | 0 | if( ( number_of_characters > utf8_string_size ) |
1288 | 0 | || ( safe_utf8_string_index > ( utf8_string_size - number_of_characters ) ) ) |
1289 | 0 | { |
1290 | 0 | libcerror_error_set( |
1291 | 0 | error, |
1292 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1293 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL, |
1294 | 0 | "%s: UTF-8 string size too small.", |
1295 | 0 | function ); |
1296 | |
|
1297 | 0 | return( -1 ); |
1298 | 0 | } |
1299 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
1300 | 0 | { |
1301 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) '0'; |
1302 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'x'; |
1303 | |
|
1304 | 0 | bit_shift = (uint8_t) ( floating_point_value_size - 4 ); |
1305 | |
|
1306 | 0 | do |
1307 | 0 | { |
1308 | 0 | byte_value = (uint8_t) ( ( floating_point_value >> bit_shift ) & 0x0f ); |
1309 | |
|
1310 | 0 | if( byte_value <= 9 ) |
1311 | 0 | { |
1312 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) '0' + byte_value; |
1313 | 0 | } |
1314 | 0 | else |
1315 | 0 | { |
1316 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'a' + byte_value - 10; |
1317 | 0 | } |
1318 | 0 | bit_shift -= 4; |
1319 | 0 | } |
1320 | 0 | while( bit_shift >= 0 ); |
1321 | 0 | } |
1322 | 0 | else |
1323 | 0 | { |
1324 | 0 | if( is_indeterminate != 0 ) |
1325 | 0 | { |
1326 | | /* "Ind\x00" */ |
1327 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'I'; |
1328 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'n'; |
1329 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'd'; |
1330 | 0 | } |
1331 | 0 | else if( is_infinite != 0 ) |
1332 | 0 | { |
1333 | | /* "Inf\x00" */ |
1334 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'I'; |
1335 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'n'; |
1336 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'f'; |
1337 | 0 | } |
1338 | 0 | else if( is_not_a_number != 0 ) |
1339 | 0 | { |
1340 | | /* "Nan\x00" */ |
1341 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'N'; |
1342 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'a'; |
1343 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'N'; |
1344 | 0 | } |
1345 | 0 | else |
1346 | 0 | { |
1347 | | /* "[-]0.000000e[+-]000\x00" */ |
1348 | 0 | if( is_signed != 0 ) |
1349 | 0 | { |
1350 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) '-'; |
1351 | 0 | } |
1352 | 0 | if( exponent2 < 0 ) |
1353 | 0 | { |
1354 | 0 | exponent_sign = (uint8_t) '-'; |
1355 | 0 | exponent2 *= -1; |
1356 | 0 | } |
1357 | 0 | else |
1358 | 0 | { |
1359 | 0 | exponent_sign = (uint8_t) '+'; |
1360 | 0 | } |
1361 | 0 | exponent_value = 1.0; |
1362 | 0 | exponent10 = 0; |
1363 | |
|
1364 | 0 | while( exponent2 > 0 ) |
1365 | 0 | { |
1366 | 0 | exponent_value *= 2; |
1367 | 0 | exponent2--; |
1368 | |
|
1369 | 0 | if( exponent_value >= 10.0 ) |
1370 | 0 | { |
1371 | 0 | exponent_value /= 10.0; |
1372 | 0 | exponent10++; |
1373 | |
|
1374 | 0 | if( exponent_sign == (uint8_t) '-' ) |
1375 | 0 | { |
1376 | 0 | value_float *= 10.0; |
1377 | 0 | } |
1378 | 0 | else |
1379 | 0 | { |
1380 | 0 | value_float /= 10.0; |
1381 | 0 | } |
1382 | 0 | } |
1383 | 0 | } |
1384 | 0 | if( value_float != 0.0 ) |
1385 | 0 | { |
1386 | 0 | while( ( value_float < 1.0 ) |
1387 | 0 | || ( value_float >= 10.0 ) ) |
1388 | 0 | { |
1389 | 0 | exponent10++; |
1390 | |
|
1391 | 0 | if( exponent_sign == (uint8_t) '-' ) |
1392 | 0 | { |
1393 | 0 | value_float *= 10; |
1394 | 0 | } |
1395 | 0 | else |
1396 | 0 | { |
1397 | 0 | value_float /= 10; |
1398 | 0 | } |
1399 | 0 | } |
1400 | 0 | } |
1401 | 0 | for( digit_index = 0; |
1402 | 0 | digit_index < 7; |
1403 | 0 | digit_index++ ) |
1404 | 0 | { |
1405 | 0 | value_fraction *= 10; |
1406 | 0 | value_fraction += (uint8_t) value_float; |
1407 | |
|
1408 | 0 | value_float -= (uint8_t) value_float; |
1409 | 0 | value_float *= 10.0; |
1410 | 0 | } |
1411 | 0 | if( value_float >= 5.0 ) |
1412 | 0 | { |
1413 | 0 | value_fraction += 1; |
1414 | 0 | } |
1415 | 0 | divider = 1000000; |
1416 | |
|
1417 | 0 | for( digit_index = 0; |
1418 | 0 | digit_index < 7; |
1419 | 0 | digit_index++ ) |
1420 | 0 | { |
1421 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) '0' + (uint8_t) ( value_fraction / divider ); |
1422 | |
|
1423 | 0 | if( digit_index == 0 ) |
1424 | 0 | { |
1425 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) '.'; |
1426 | 0 | } |
1427 | 0 | value_fraction %= divider; |
1428 | 0 | divider /= 10; |
1429 | 0 | } |
1430 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'e'; |
1431 | 0 | utf8_string[ safe_utf8_string_index++ ] = exponent_sign; |
1432 | |
|
1433 | 0 | divider = 100; |
1434 | |
|
1435 | 0 | for( digit_index = 0; |
1436 | 0 | digit_index < 3; |
1437 | 0 | digit_index++ ) |
1438 | 0 | { |
1439 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) '0' + (uint8_t) ( exponent10 / divider ); |
1440 | |
|
1441 | 0 | exponent10 %= divider; |
1442 | 0 | divider /= 10; |
1443 | 0 | } |
1444 | 0 | } |
1445 | 0 | } |
1446 | 0 | utf8_string[ safe_utf8_string_index++ ] = 0; |
1447 | |
|
1448 | 0 | *utf8_string_index = safe_utf8_string_index; |
1449 | |
|
1450 | 0 | return( 1 ); |
1451 | 0 | } |
1452 | | |
1453 | | /* Copies an UTF-8 encoded string to a floating point value |
1454 | | * The floating_point value size is in bits |
1455 | | * Returns 1 if successful or -1 on error |
1456 | | */ |
1457 | | int libfvalue_utf8_string_with_index_copy_to_floating_point( |
1458 | | uint8_t *utf8_string, |
1459 | | size_t utf8_string_length, |
1460 | | size_t *utf8_string_index, |
1461 | | uint64_t *floating_point_value, |
1462 | | size_t floating_point_value_size, |
1463 | | uint32_t string_format_flags, |
1464 | | libcerror_error_t **error ) |
1465 | 0 | { |
1466 | 0 | byte_stream_float64_t value_float64; |
1467 | |
|
1468 | 0 | static char *function = "libfvalue_utf8_string_with_index_copy_to_floating_point"; |
1469 | 0 | size_t fraction_index = 0; |
1470 | 0 | size_t maximum_string_index = 0; |
1471 | 0 | size_t safe_utf8_string_index = 0; |
1472 | 0 | uint64_t divider = 0; |
1473 | 0 | uint64_t value_64bit = 0; |
1474 | 0 | uint32_t string_format_type = 0; |
1475 | 0 | uint32_t supported_flags = 0; |
1476 | 0 | uint8_t byte_value = 0; |
1477 | 0 | uint8_t character_value = 0; |
1478 | 0 | int8_t bit_shift = 0; |
1479 | 0 | int8_t sign = 1; |
1480 | 0 | double value_fraction = 0.0; |
1481 | |
|
1482 | 0 | if( utf8_string == NULL ) |
1483 | 0 | { |
1484 | 0 | libcerror_error_set( |
1485 | 0 | error, |
1486 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1487 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1488 | 0 | "%s: invalid UTF-8 string.", |
1489 | 0 | function ); |
1490 | |
|
1491 | 0 | return( -1 ); |
1492 | 0 | } |
1493 | 0 | if( utf8_string_length > (size_t) SSIZE_MAX ) |
1494 | 0 | { |
1495 | 0 | libcerror_error_set( |
1496 | 0 | error, |
1497 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1498 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
1499 | 0 | "%s: invalid UTF-8 string size value exceeds maximum.", |
1500 | 0 | function ); |
1501 | |
|
1502 | 0 | return( -1 ); |
1503 | 0 | } |
1504 | 0 | if( utf8_string_index == NULL ) |
1505 | 0 | { |
1506 | 0 | libcerror_error_set( |
1507 | 0 | error, |
1508 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1509 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1510 | 0 | "%s: invalid UTF-8 string index.", |
1511 | 0 | function ); |
1512 | |
|
1513 | 0 | return( -1 ); |
1514 | 0 | } |
1515 | 0 | if( *utf8_string_index >= utf8_string_length ) |
1516 | 0 | { |
1517 | 0 | libcerror_error_set( |
1518 | 0 | error, |
1519 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1520 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
1521 | 0 | "%s: invalid UTF-8 string index value out of bounds.", |
1522 | 0 | function ); |
1523 | |
|
1524 | 0 | return( -1 ); |
1525 | 0 | } |
1526 | 0 | safe_utf8_string_index = *utf8_string_index; |
1527 | |
|
1528 | 0 | if( floating_point_value == NULL ) |
1529 | 0 | { |
1530 | 0 | libcerror_error_set( |
1531 | 0 | error, |
1532 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1533 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1534 | 0 | "%s: invalid floating point value.", |
1535 | 0 | function ); |
1536 | |
|
1537 | 0 | return( -1 ); |
1538 | 0 | } |
1539 | 0 | if( ( floating_point_value_size != 32 ) |
1540 | 0 | && ( floating_point_value_size != 64 ) ) |
1541 | 0 | { |
1542 | 0 | libcerror_error_set( |
1543 | 0 | error, |
1544 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1545 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
1546 | 0 | "%s: unsupported floating point value size.", |
1547 | 0 | function ); |
1548 | |
|
1549 | 0 | return( -1 ); |
1550 | 0 | } |
1551 | 0 | supported_flags = 0x000000ffUL; |
1552 | |
|
1553 | 0 | if( ( string_format_flags & ~( supported_flags ) ) != 0 ) |
1554 | 0 | { |
1555 | 0 | libcerror_error_set( |
1556 | 0 | error, |
1557 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1558 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
1559 | 0 | "%s: unsupported string format flags: 0x%08" PRIx32 ".", |
1560 | 0 | function, |
1561 | 0 | string_format_flags ); |
1562 | |
|
1563 | 0 | return( -1 ); |
1564 | 0 | } |
1565 | 0 | string_format_type = string_format_flags & 0x000000ffUL; |
1566 | |
|
1567 | 0 | if( ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_DECIMAL ) |
1568 | 0 | && ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) ) |
1569 | 0 | { |
1570 | 0 | libcerror_error_set( |
1571 | 0 | error, |
1572 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1573 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
1574 | 0 | "%s: unsupported string format type.", |
1575 | 0 | function ); |
1576 | |
|
1577 | 0 | return( -1 ); |
1578 | 0 | } |
1579 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
1580 | 0 | { |
1581 | 0 | maximum_string_index = (size_t) ( floating_point_value_size >> 2 ) + 3; |
1582 | 0 | } |
1583 | 0 | else |
1584 | 0 | { |
1585 | | /* The string is at least a single digit with an end of string character |
1586 | | */ |
1587 | 0 | maximum_string_index = 2; |
1588 | |
|
1589 | 0 | bit_shift = (uint8_t) ( floating_point_value_size - 1 ); |
1590 | |
|
1591 | 0 | divider = 1; |
1592 | |
|
1593 | 0 | value_64bit = ~( ( ~( (uint64_t) 1 << bit_shift ) >> bit_shift ) << bit_shift ); |
1594 | |
|
1595 | 0 | while( ( value_64bit / divider ) >= 10 ) |
1596 | 0 | { |
1597 | 0 | divider *= 10; |
1598 | |
|
1599 | 0 | maximum_string_index += 1; |
1600 | 0 | } |
1601 | 0 | } |
1602 | 0 | maximum_string_index += safe_utf8_string_index; |
1603 | |
|
1604 | 0 | if( maximum_string_index > (size_t) SSIZE_MAX ) |
1605 | 0 | { |
1606 | 0 | libcerror_error_set( |
1607 | 0 | error, |
1608 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1609 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM, |
1610 | 0 | "%s: invalid maximum string index value exceeds maximum.", |
1611 | 0 | function ); |
1612 | |
|
1613 | 0 | return( -1 ); |
1614 | 0 | } |
1615 | 0 | value_64bit = 0; |
1616 | |
|
1617 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
1618 | 0 | { |
1619 | 0 | character_value = utf8_string[ safe_utf8_string_index++ ]; |
1620 | |
|
1621 | 0 | if(character_value != (uint8_t) '0' ) |
1622 | 0 | { |
1623 | 0 | libcerror_error_set( |
1624 | 0 | error, |
1625 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1626 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
1627 | 0 | "%s: unsupported character value: 0x%02" PRIx8 " at index: %d.", |
1628 | 0 | function, |
1629 | 0 | character_value, |
1630 | 0 | safe_utf8_string_index ); |
1631 | |
|
1632 | 0 | return( -1 ); |
1633 | 0 | } |
1634 | 0 | character_value = utf8_string[ safe_utf8_string_index++ ]; |
1635 | |
|
1636 | 0 | if( character_value != (uint8_t) 'x' ) |
1637 | 0 | { |
1638 | 0 | libcerror_error_set( |
1639 | 0 | error, |
1640 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1641 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
1642 | 0 | "%s: unsupported character value: 0x%02" PRIx8 " at index: %d.", |
1643 | 0 | function, |
1644 | 0 | character_value, |
1645 | 0 | safe_utf8_string_index ); |
1646 | |
|
1647 | 0 | return( -1 ); |
1648 | 0 | } |
1649 | 0 | while( safe_utf8_string_index < utf8_string_length ) |
1650 | 0 | { |
1651 | 0 | character_value = utf8_string[ safe_utf8_string_index ]; |
1652 | |
|
1653 | 0 | if( character_value == 0 ) |
1654 | 0 | { |
1655 | 0 | break; |
1656 | 0 | } |
1657 | 0 | if( safe_utf8_string_index > (size_t) maximum_string_index ) |
1658 | 0 | { |
1659 | 0 | libcerror_error_set( |
1660 | 0 | error, |
1661 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1662 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
1663 | 0 | "%s: string too large.", |
1664 | 0 | function ); |
1665 | |
|
1666 | 0 | return( -1 ); |
1667 | 0 | } |
1668 | 0 | value_64bit <<= 4; |
1669 | |
|
1670 | 0 | if( ( character_value >= (uint8_t) '0' ) |
1671 | 0 | && ( character_value <= (uint8_t) '9' ) ) |
1672 | 0 | { |
1673 | 0 | byte_value = (uint8_t) ( character_value - (uint8_t) '0' ); |
1674 | 0 | } |
1675 | 0 | else if( ( character_value >= (uint8_t) 'A' ) |
1676 | 0 | && ( character_value <= (uint8_t) 'F' ) ) |
1677 | 0 | { |
1678 | 0 | byte_value = (uint8_t) ( character_value - (uint8_t) 'A' + 10 ); |
1679 | 0 | } |
1680 | 0 | else if( ( character_value >= (uint8_t) 'a' ) |
1681 | 0 | && ( character_value <= (uint8_t) 'f' ) ) |
1682 | 0 | { |
1683 | 0 | byte_value = (uint8_t) ( character_value - (uint8_t) 'a' + 10 ); |
1684 | 0 | } |
1685 | 0 | else |
1686 | 0 | { |
1687 | 0 | libcerror_error_set( |
1688 | 0 | error, |
1689 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1690 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
1691 | 0 | "%s: unsupported character value: 0x%02" PRIx8 " at index: %d.", |
1692 | 0 | function, |
1693 | 0 | character_value, |
1694 | 0 | safe_utf8_string_index ); |
1695 | |
|
1696 | 0 | return( -1 ); |
1697 | 0 | } |
1698 | 0 | value_64bit += byte_value; |
1699 | |
|
1700 | 0 | safe_utf8_string_index++; |
1701 | 0 | } |
1702 | 0 | } |
1703 | 0 | else |
1704 | 0 | { |
1705 | 0 | value_float64.floating_point = 0.0; |
1706 | |
|
1707 | 0 | character_value = utf8_string[ safe_utf8_string_index ]; |
1708 | | |
1709 | | /* In the maximum possible string one character is substituted for the sign |
1710 | | */ |
1711 | 0 | if( character_value == (uint8_t) '-' ) |
1712 | 0 | { |
1713 | 0 | safe_utf8_string_index++; |
1714 | |
|
1715 | 0 | sign = -1; |
1716 | 0 | } |
1717 | 0 | else if( character_value == (uint8_t) '+' ) |
1718 | 0 | { |
1719 | 0 | safe_utf8_string_index++; |
1720 | 0 | } |
1721 | 0 | while( safe_utf8_string_index < utf8_string_length ) |
1722 | 0 | { |
1723 | 0 | character_value = utf8_string[ safe_utf8_string_index ]; |
1724 | |
|
1725 | 0 | if( character_value == 0 ) |
1726 | 0 | { |
1727 | 0 | break; |
1728 | 0 | } |
1729 | 0 | if( safe_utf8_string_index > (size_t) maximum_string_index ) |
1730 | 0 | { |
1731 | 0 | libcerror_error_set( |
1732 | 0 | error, |
1733 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1734 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
1735 | 0 | "%s: string too large.", |
1736 | 0 | function ); |
1737 | |
|
1738 | 0 | return( -1 ); |
1739 | 0 | } |
1740 | 0 | if( character_value == (uint8_t) '.' ) |
1741 | 0 | { |
1742 | 0 | break; |
1743 | 0 | } |
1744 | 0 | if( ( character_value < (uint8_t) '0' ) |
1745 | 0 | || ( character_value > (uint8_t) '9' ) ) |
1746 | 0 | { |
1747 | 0 | libcerror_error_set( |
1748 | 0 | error, |
1749 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1750 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
1751 | 0 | "%s: unsupported character value: 0x%02" PRIx8 " at index: %d.", |
1752 | 0 | function, |
1753 | 0 | character_value, |
1754 | 0 | safe_utf8_string_index ); |
1755 | |
|
1756 | 0 | return( -1 ); |
1757 | 0 | } |
1758 | 0 | value_float64.floating_point *= 10; |
1759 | 0 | value_float64.floating_point += character_value - (uint8_t) '0'; |
1760 | |
|
1761 | 0 | safe_utf8_string_index++; |
1762 | 0 | } |
1763 | 0 | fraction_index = safe_utf8_string_index; |
1764 | |
|
1765 | 0 | safe_utf8_string_index++; |
1766 | 0 | utf8_string_length--; |
1767 | |
|
1768 | 0 | if( utf8_string_length > (size_t) maximum_string_index ) |
1769 | 0 | { |
1770 | 0 | libcerror_error_set( |
1771 | 0 | error, |
1772 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1773 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
1774 | 0 | "%s: string too large.", |
1775 | 0 | function ); |
1776 | |
|
1777 | 0 | return( -1 ); |
1778 | 0 | } |
1779 | 0 | while( fraction_index < utf8_string_length ) |
1780 | 0 | { |
1781 | 0 | character_value = utf8_string[ utf8_string_length ]; |
1782 | |
|
1783 | 0 | if( character_value == 0 ) |
1784 | 0 | { |
1785 | 0 | break; |
1786 | 0 | } |
1787 | 0 | if( ( character_value < (uint8_t) '0' ) |
1788 | 0 | || ( character_value > (uint8_t) '9' ) ) |
1789 | 0 | { |
1790 | 0 | libcerror_error_set( |
1791 | 0 | error, |
1792 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1793 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
1794 | 0 | "%s: unsupported character value: 0x%02" PRIx8 " at index: %d.", |
1795 | 0 | function, |
1796 | 0 | character_value, |
1797 | 0 | utf8_string_length ); |
1798 | |
|
1799 | 0 | return( -1 ); |
1800 | 0 | } |
1801 | 0 | value_fraction /= 10; |
1802 | 0 | value_fraction += character_value - (uint8_t) '0'; |
1803 | |
|
1804 | 0 | safe_utf8_string_index++; |
1805 | 0 | utf8_string_length--; |
1806 | 0 | } |
1807 | 0 | if( value_fraction != 0.0 ) |
1808 | 0 | { |
1809 | 0 | value_float64.floating_point += value_fraction / 10; |
1810 | 0 | } |
1811 | 0 | if( sign == -1 ) |
1812 | 0 | { |
1813 | 0 | value_float64.floating_point *= 1.0; |
1814 | 0 | } |
1815 | 0 | value_64bit = value_float64.integer; |
1816 | 0 | } |
1817 | 0 | *utf8_string_index = safe_utf8_string_index; |
1818 | 0 | *floating_point_value = value_64bit; |
1819 | |
|
1820 | 0 | return( 1 ); |
1821 | 0 | } |
1822 | | |
1823 | | /* Copies an UTF-16 encoded string of a floating point value |
1824 | | * The floating_point value size is in bits |
1825 | | * Returns 1 if successful or -1 on error |
1826 | | */ |
1827 | | int libfvalue_utf16_string_copy_from_floating_point( |
1828 | | uint16_t *utf16_string, |
1829 | | size_t utf16_string_size, |
1830 | | uint64_t floating_point_value, |
1831 | | size_t floating_point_value_size, |
1832 | | uint32_t string_format_flags, |
1833 | | libcerror_error_t **error ) |
1834 | 0 | { |
1835 | 0 | static char *function = "libfvalue_utf16_string_copy_from_floating_point"; |
1836 | 0 | size_t utf16_string_index = 0; |
1837 | |
|
1838 | 0 | if( libfvalue_utf16_string_with_index_copy_from_floating_point( |
1839 | 0 | utf16_string, |
1840 | 0 | utf16_string_size, |
1841 | 0 | &utf16_string_index, |
1842 | 0 | floating_point_value, |
1843 | 0 | floating_point_value_size, |
1844 | 0 | string_format_flags, |
1845 | 0 | error ) != 1 ) |
1846 | 0 | { |
1847 | 0 | libcerror_error_set( |
1848 | 0 | error, |
1849 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1850 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
1851 | 0 | "%s: unable to copy floating point value to UTF-16 string.", |
1852 | 0 | function ); |
1853 | |
|
1854 | 0 | return( -1 ); |
1855 | 0 | } |
1856 | 0 | return( 1 ); |
1857 | 0 | } |
1858 | | |
1859 | | /* Copies an UTF-16 encoded string of from floating_point value |
1860 | | * The floating_point value size is in bits |
1861 | | * Returns 1 if successful or -1 on error |
1862 | | */ |
1863 | | int libfvalue_utf16_string_with_index_copy_from_floating_point( |
1864 | | uint16_t *utf16_string, |
1865 | | size_t utf16_string_size, |
1866 | | size_t *utf16_string_index, |
1867 | | uint64_t floating_point_value, |
1868 | | size_t floating_point_value_size, |
1869 | | uint32_t string_format_flags, |
1870 | | libcerror_error_t **error ) |
1871 | 0 | { |
1872 | 0 | byte_stream_float32_t value_float32; |
1873 | 0 | byte_stream_float64_t value_float64; |
1874 | |
|
1875 | 0 | static char *function = "libfvalue_utf16_string_with_index_copy_from_floating_point"; |
1876 | 0 | size_t safe_utf16_string_index = 0; |
1877 | 0 | uint64_t divider = 0; |
1878 | 0 | uint64_t value_fraction = 0; |
1879 | 0 | uint32_t string_format_type = 0; |
1880 | 0 | uint32_t supported_flags = 0; |
1881 | 0 | int16_t exponent10 = 0; |
1882 | 0 | int16_t exponent2 = 0; |
1883 | 0 | uint8_t byte_value = 0; |
1884 | 0 | uint8_t digit_index = 0; |
1885 | 0 | uint8_t exponent_sign = 0; |
1886 | 0 | uint8_t is_indeterminate = 0; |
1887 | 0 | uint8_t is_infinite = 0; |
1888 | 0 | uint8_t is_not_a_number = 0; |
1889 | 0 | uint8_t is_signed = 0; |
1890 | 0 | uint8_t number_of_characters = 0; |
1891 | 0 | int8_t bit_shift = 0; |
1892 | 0 | double exponent_value = 0.0; |
1893 | 0 | double value_float = 0.0; |
1894 | |
|
1895 | 0 | if( utf16_string == NULL ) |
1896 | 0 | { |
1897 | 0 | libcerror_error_set( |
1898 | 0 | error, |
1899 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1900 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1901 | 0 | "%s: invalid UTF-16 string.", |
1902 | 0 | function ); |
1903 | |
|
1904 | 0 | return( -1 ); |
1905 | 0 | } |
1906 | 0 | if( utf16_string_size > (size_t) SSIZE_MAX ) |
1907 | 0 | { |
1908 | 0 | libcerror_error_set( |
1909 | 0 | error, |
1910 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1911 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
1912 | 0 | "%s: invalid UTF-16 string size value exceeds maximum.", |
1913 | 0 | function ); |
1914 | |
|
1915 | 0 | return( -1 ); |
1916 | 0 | } |
1917 | 0 | if( utf16_string_index == NULL ) |
1918 | 0 | { |
1919 | 0 | libcerror_error_set( |
1920 | 0 | error, |
1921 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1922 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1923 | 0 | "%s: invalid UTF-16 string index.", |
1924 | 0 | function ); |
1925 | |
|
1926 | 0 | return( -1 ); |
1927 | 0 | } |
1928 | 0 | if( *utf16_string_index >= utf16_string_size ) |
1929 | 0 | { |
1930 | 0 | libcerror_error_set( |
1931 | 0 | error, |
1932 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1933 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
1934 | 0 | "%s: invalid UTF-16 string index value out of bounds.", |
1935 | 0 | function ); |
1936 | |
|
1937 | 0 | return( -1 ); |
1938 | 0 | } |
1939 | 0 | safe_utf16_string_index = *utf16_string_index; |
1940 | |
|
1941 | 0 | if( ( floating_point_value_size != 32 ) |
1942 | 0 | && ( floating_point_value_size != 64 ) ) |
1943 | 0 | { |
1944 | 0 | libcerror_error_set( |
1945 | 0 | error, |
1946 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1947 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
1948 | 0 | "%s: unsupported floating point value size.", |
1949 | 0 | function ); |
1950 | |
|
1951 | 0 | return( -1 ); |
1952 | 0 | } |
1953 | 0 | supported_flags = 0x000000ffUL; |
1954 | |
|
1955 | 0 | if( ( string_format_flags & ~( supported_flags ) ) != 0 ) |
1956 | 0 | { |
1957 | 0 | libcerror_error_set( |
1958 | 0 | error, |
1959 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1960 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
1961 | 0 | "%s: unsupported string format flags: 0x%08" PRIx32 ".", |
1962 | 0 | function, |
1963 | 0 | string_format_flags ); |
1964 | |
|
1965 | 0 | return( -1 ); |
1966 | 0 | } |
1967 | 0 | string_format_type = string_format_flags & 0x000000ffUL; |
1968 | |
|
1969 | 0 | if( ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_DECIMAL ) |
1970 | 0 | && ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) ) |
1971 | 0 | { |
1972 | 0 | libcerror_error_set( |
1973 | 0 | error, |
1974 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1975 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
1976 | 0 | "%s: unsupported string format type.", |
1977 | 0 | function ); |
1978 | |
|
1979 | 0 | return( -1 ); |
1980 | 0 | } |
1981 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
1982 | 0 | { |
1983 | 0 | number_of_characters = (uint8_t) ( floating_point_value_size >> 2 ) + 3; |
1984 | 0 | } |
1985 | 0 | else |
1986 | 0 | { |
1987 | 0 | bit_shift = (int8_t) ( floating_point_value_size - 1 ); |
1988 | 0 | is_signed = (uint8_t) ( floating_point_value >> bit_shift ); |
1989 | |
|
1990 | 0 | if( is_signed != 0 ) |
1991 | 0 | { |
1992 | 0 | floating_point_value &= ~( (uint64_t) 1 << bit_shift ); |
1993 | 0 | } |
1994 | 0 | switch( floating_point_value_size ) |
1995 | 0 | { |
1996 | 0 | case 32: |
1997 | 0 | if( floating_point_value == 0x7f800000UL ) |
1998 | 0 | { |
1999 | 0 | is_infinite = 1; |
2000 | 0 | } |
2001 | 0 | else if( ( is_signed != 0 ) |
2002 | 0 | && ( floating_point_value == 0x7fc00000UL ) ) |
2003 | 0 | { |
2004 | 0 | is_indeterminate = 1; |
2005 | 0 | } |
2006 | 0 | else if( ( floating_point_value >= 0x7f800001UL ) |
2007 | 0 | && ( floating_point_value <= 0x7fffffffUL ) ) |
2008 | 0 | { |
2009 | 0 | is_not_a_number = 1; |
2010 | 0 | } |
2011 | 0 | else if( floating_point_value != 0 ) |
2012 | 0 | { |
2013 | 0 | value_float32.integer = (uint32_t) floating_point_value; |
2014 | 0 | value_float = (double) value_float32.floating_point; |
2015 | |
|
2016 | 0 | exponent2 = (int16_t) ( floating_point_value >> 23 ); |
2017 | |
|
2018 | 0 | if( exponent2 == 0 ) |
2019 | 0 | { |
2020 | 0 | exponent2 = -126; |
2021 | 0 | } |
2022 | 0 | else |
2023 | 0 | { |
2024 | 0 | exponent2 -= 127; |
2025 | 0 | } |
2026 | 0 | } |
2027 | 0 | break; |
2028 | | |
2029 | 0 | case 64: |
2030 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
2031 | | if( floating_point_value == 0x7ff0000000000000UL ) |
2032 | | #else |
2033 | 0 | if( floating_point_value == 0x7ff0000000000000ULL ) |
2034 | 0 | #endif |
2035 | 0 | { |
2036 | 0 | is_infinite = 1; |
2037 | 0 | } |
2038 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
2039 | | else if( ( is_signed != 0 ) |
2040 | | && ( floating_point_value == 0x7ff8000000000000UL ) ) |
2041 | | #else |
2042 | 0 | else if( ( is_signed != 0 ) |
2043 | 0 | && ( floating_point_value == 0x7ff8000000000000ULL ) ) |
2044 | 0 | #endif |
2045 | 0 | { |
2046 | 0 | is_indeterminate = 1; |
2047 | 0 | } |
2048 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
2049 | | else if( ( floating_point_value >= 0x7ff0000000000001UL ) |
2050 | | && ( floating_point_value <= 0x7fffffffffffffffUL ) ) |
2051 | | #else |
2052 | 0 | else if( ( floating_point_value >= 0x7ff0000000000001ULL ) |
2053 | 0 | && ( floating_point_value <= 0x7fffffffffffffffULL ) ) |
2054 | 0 | #endif |
2055 | 0 | { |
2056 | 0 | is_not_a_number = 1; |
2057 | 0 | } |
2058 | 0 | else if( floating_point_value != 0 ) |
2059 | 0 | { |
2060 | 0 | value_float64.integer = (uint64_t) floating_point_value; |
2061 | 0 | value_float = (double) value_float64.floating_point; |
2062 | |
|
2063 | 0 | exponent2 = (int16_t) ( floating_point_value >> 52 ); |
2064 | |
|
2065 | 0 | if( exponent2 == 0 ) |
2066 | 0 | { |
2067 | 0 | exponent2 = -1023; |
2068 | 0 | } |
2069 | 0 | else |
2070 | 0 | { |
2071 | 0 | exponent2 -= 1023; |
2072 | 0 | } |
2073 | 0 | } |
2074 | 0 | break; |
2075 | 0 | } |
2076 | 0 | if( is_indeterminate != 0 ) |
2077 | 0 | { |
2078 | | /* "Ind\x00" */ |
2079 | 0 | number_of_characters = 4; |
2080 | 0 | } |
2081 | 0 | else if( is_infinite != 0 ) |
2082 | 0 | { |
2083 | | /* "Inf\x00" */ |
2084 | 0 | number_of_characters = 4; |
2085 | 0 | } |
2086 | 0 | else if( is_not_a_number != 0 ) |
2087 | 0 | { |
2088 | | /* "Nan\x00" */ |
2089 | 0 | number_of_characters = 4; |
2090 | 0 | } |
2091 | 0 | else |
2092 | 0 | { |
2093 | | /* "[-]0.000000e[+-]000\x00" */ |
2094 | 0 | if( is_signed != 0 ) |
2095 | 0 | { |
2096 | 0 | number_of_characters = 15; |
2097 | 0 | } |
2098 | 0 | else |
2099 | 0 | { |
2100 | 0 | number_of_characters = 14; |
2101 | 0 | } |
2102 | 0 | } |
2103 | 0 | } |
2104 | 0 | if( ( number_of_characters > utf16_string_size ) |
2105 | 0 | || ( safe_utf16_string_index > ( utf16_string_size - number_of_characters ) ) ) |
2106 | 0 | { |
2107 | 0 | libcerror_error_set( |
2108 | 0 | error, |
2109 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2110 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL, |
2111 | 0 | "%s: UTF-16 string size too small.", |
2112 | 0 | function ); |
2113 | |
|
2114 | 0 | return( -1 ); |
2115 | 0 | } |
2116 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
2117 | 0 | { |
2118 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) '0'; |
2119 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'x'; |
2120 | |
|
2121 | 0 | bit_shift = (int8_t) ( floating_point_value_size - 4 ); |
2122 | |
|
2123 | 0 | do |
2124 | 0 | { |
2125 | 0 | byte_value = (uint16_t) ( ( floating_point_value >> bit_shift ) & 0x0f ); |
2126 | |
|
2127 | 0 | if( byte_value <= 9 ) |
2128 | 0 | { |
2129 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) '0' + byte_value; |
2130 | 0 | } |
2131 | 0 | else |
2132 | 0 | { |
2133 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'a' + byte_value - 10; |
2134 | 0 | } |
2135 | 0 | bit_shift -= 4; |
2136 | 0 | } |
2137 | 0 | while( bit_shift >= 0 ); |
2138 | 0 | } |
2139 | 0 | else |
2140 | 0 | { |
2141 | 0 | if( is_indeterminate != 0 ) |
2142 | 0 | { |
2143 | | /* "Ind\x00" */ |
2144 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'I'; |
2145 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'n'; |
2146 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'd'; |
2147 | 0 | } |
2148 | 0 | else if( is_infinite != 0 ) |
2149 | 0 | { |
2150 | | /* "Inf\x00" */ |
2151 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'I'; |
2152 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'n'; |
2153 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'f'; |
2154 | 0 | } |
2155 | 0 | else if( is_not_a_number != 0 ) |
2156 | 0 | { |
2157 | | /* "Nan\x00" */ |
2158 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'N'; |
2159 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'a'; |
2160 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'N'; |
2161 | 0 | } |
2162 | 0 | else |
2163 | 0 | { |
2164 | | /* "[-]0.000000e[+-]000\x00" */ |
2165 | 0 | if( is_signed != 0 ) |
2166 | 0 | { |
2167 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) '-'; |
2168 | 0 | } |
2169 | 0 | if( exponent2 < 0 ) |
2170 | 0 | { |
2171 | 0 | exponent_sign = (uint16_t) '-'; |
2172 | 0 | exponent2 *= -1; |
2173 | 0 | } |
2174 | 0 | else |
2175 | 0 | { |
2176 | 0 | exponent_sign = (uint16_t) '+'; |
2177 | 0 | } |
2178 | 0 | exponent_value = 1.0; |
2179 | 0 | exponent10 = 0; |
2180 | |
|
2181 | 0 | while( exponent2 > 0 ) |
2182 | 0 | { |
2183 | 0 | exponent_value *= 2; |
2184 | 0 | exponent2--; |
2185 | |
|
2186 | 0 | if( exponent_value >= 10.0 ) |
2187 | 0 | { |
2188 | 0 | exponent_value /= 10.0; |
2189 | 0 | exponent10++; |
2190 | |
|
2191 | 0 | if( exponent_sign == (uint16_t) '-' ) |
2192 | 0 | { |
2193 | 0 | value_float *= 10.0; |
2194 | 0 | } |
2195 | 0 | else |
2196 | 0 | { |
2197 | 0 | value_float /= 10.0; |
2198 | 0 | } |
2199 | 0 | } |
2200 | 0 | } |
2201 | 0 | if( value_float != 0.0 ) |
2202 | 0 | { |
2203 | 0 | while( ( value_float < 1.0 ) |
2204 | 0 | || ( value_float >= 10.0 ) ) |
2205 | 0 | { |
2206 | 0 | exponent10++; |
2207 | |
|
2208 | 0 | if( exponent_sign == (uint16_t) '-' ) |
2209 | 0 | { |
2210 | 0 | value_float *= 10; |
2211 | 0 | } |
2212 | 0 | else |
2213 | 0 | { |
2214 | 0 | value_float /= 10; |
2215 | 0 | } |
2216 | 0 | } |
2217 | 0 | } |
2218 | 0 | for( digit_index = 0; |
2219 | 0 | digit_index < 7; |
2220 | 0 | digit_index++ ) |
2221 | 0 | { |
2222 | 0 | value_fraction *= 10; |
2223 | 0 | value_fraction += (uint16_t) value_float; |
2224 | |
|
2225 | 0 | value_float -= (uint16_t) value_float; |
2226 | 0 | value_float *= 10.0; |
2227 | 0 | } |
2228 | 0 | if( value_float >= 5.0 ) |
2229 | 0 | { |
2230 | 0 | value_fraction += 1; |
2231 | 0 | } |
2232 | 0 | divider = 1000000; |
2233 | |
|
2234 | 0 | for( digit_index = 0; |
2235 | 0 | digit_index < 7; |
2236 | 0 | digit_index++ ) |
2237 | 0 | { |
2238 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) '0' + (uint16_t) ( value_fraction / divider ); |
2239 | |
|
2240 | 0 | if( digit_index == 0 ) |
2241 | 0 | { |
2242 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) '.'; |
2243 | 0 | } |
2244 | 0 | value_fraction %= divider; |
2245 | 0 | divider /= 10; |
2246 | 0 | } |
2247 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'e'; |
2248 | 0 | utf16_string[ safe_utf16_string_index++ ] = exponent_sign; |
2249 | |
|
2250 | 0 | divider = 100; |
2251 | |
|
2252 | 0 | for( digit_index = 0; |
2253 | 0 | digit_index < 3; |
2254 | 0 | digit_index++ ) |
2255 | 0 | { |
2256 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) '0' + (uint16_t) ( exponent10 / divider ); |
2257 | |
|
2258 | 0 | exponent10 %= divider; |
2259 | 0 | divider /= 10; |
2260 | 0 | } |
2261 | 0 | } |
2262 | 0 | } |
2263 | 0 | utf16_string[ safe_utf16_string_index++ ] = 0; |
2264 | |
|
2265 | 0 | *utf16_string_index = safe_utf16_string_index; |
2266 | |
|
2267 | 0 | return( 1 ); |
2268 | 0 | } |
2269 | | |
2270 | | /* Copies an UTF-16 encoded string to a floating point value |
2271 | | * The floating_point value size is in bits |
2272 | | * Returns 1 if successful or -1 on error |
2273 | | */ |
2274 | | int libfvalue_utf16_string_with_index_copy_to_floating_point( |
2275 | | uint16_t *utf16_string, |
2276 | | size_t utf16_string_length, |
2277 | | size_t *utf16_string_index, |
2278 | | uint64_t *floating_point_value, |
2279 | | size_t floating_point_value_size, |
2280 | | uint32_t string_format_flags, |
2281 | | libcerror_error_t **error ) |
2282 | 0 | { |
2283 | 0 | byte_stream_float64_t value_float64; |
2284 | |
|
2285 | 0 | static char *function = "libfvalue_utf16_string_with_index_copy_to_floating_point"; |
2286 | 0 | size_t fraction_index = 0; |
2287 | 0 | size_t maximum_string_index = 0; |
2288 | 0 | size_t safe_utf16_string_index = 0; |
2289 | 0 | uint64_t divider = 0; |
2290 | 0 | uint64_t value_64bit = 0; |
2291 | 0 | uint32_t string_format_type = 0; |
2292 | 0 | uint32_t supported_flags = 0; |
2293 | 0 | uint16_t character_value = 0; |
2294 | 0 | uint8_t byte_value = 0; |
2295 | 0 | int8_t bit_shift = 0; |
2296 | 0 | int8_t sign = 1; |
2297 | 0 | double value_fraction = 0.0; |
2298 | |
|
2299 | 0 | if( utf16_string == NULL ) |
2300 | 0 | { |
2301 | 0 | libcerror_error_set( |
2302 | 0 | error, |
2303 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2304 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2305 | 0 | "%s: invalid UTF-16 string.", |
2306 | 0 | function ); |
2307 | |
|
2308 | 0 | return( -1 ); |
2309 | 0 | } |
2310 | 0 | if( utf16_string_length > (size_t) SSIZE_MAX ) |
2311 | 0 | { |
2312 | 0 | libcerror_error_set( |
2313 | 0 | error, |
2314 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2315 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2316 | 0 | "%s: invalid UTF-16 string size value exceeds maximum.", |
2317 | 0 | function ); |
2318 | |
|
2319 | 0 | return( -1 ); |
2320 | 0 | } |
2321 | 0 | if( utf16_string_index == NULL ) |
2322 | 0 | { |
2323 | 0 | libcerror_error_set( |
2324 | 0 | error, |
2325 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2326 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2327 | 0 | "%s: invalid UTF-16 string index.", |
2328 | 0 | function ); |
2329 | |
|
2330 | 0 | return( -1 ); |
2331 | 0 | } |
2332 | 0 | if( *utf16_string_index >= utf16_string_length ) |
2333 | 0 | { |
2334 | 0 | libcerror_error_set( |
2335 | 0 | error, |
2336 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2337 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
2338 | 0 | "%s: invalid UTF-16 string index value out of bounds.", |
2339 | 0 | function ); |
2340 | |
|
2341 | 0 | return( -1 ); |
2342 | 0 | } |
2343 | 0 | safe_utf16_string_index = *utf16_string_index; |
2344 | |
|
2345 | 0 | if( floating_point_value == NULL ) |
2346 | 0 | { |
2347 | 0 | libcerror_error_set( |
2348 | 0 | error, |
2349 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2350 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2351 | 0 | "%s: invalid floating point value.", |
2352 | 0 | function ); |
2353 | |
|
2354 | 0 | return( -1 ); |
2355 | 0 | } |
2356 | 0 | if( ( floating_point_value_size != 32 ) |
2357 | 0 | && ( floating_point_value_size != 64 ) ) |
2358 | 0 | { |
2359 | 0 | libcerror_error_set( |
2360 | 0 | error, |
2361 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2362 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
2363 | 0 | "%s: unsupported floating point value size.", |
2364 | 0 | function ); |
2365 | |
|
2366 | 0 | return( -1 ); |
2367 | 0 | } |
2368 | 0 | supported_flags = 0x000000ffUL; |
2369 | |
|
2370 | 0 | if( ( string_format_flags & ~( supported_flags ) ) != 0 ) |
2371 | 0 | { |
2372 | 0 | libcerror_error_set( |
2373 | 0 | error, |
2374 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2375 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
2376 | 0 | "%s: unsupported string format flags: 0x%08" PRIx32 ".", |
2377 | 0 | function, |
2378 | 0 | string_format_flags ); |
2379 | |
|
2380 | 0 | return( -1 ); |
2381 | 0 | } |
2382 | 0 | string_format_type = string_format_flags & 0x000000ffUL; |
2383 | |
|
2384 | 0 | if( ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_DECIMAL ) |
2385 | 0 | && ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) ) |
2386 | 0 | { |
2387 | 0 | libcerror_error_set( |
2388 | 0 | error, |
2389 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2390 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
2391 | 0 | "%s: unsupported string format type.", |
2392 | 0 | function ); |
2393 | |
|
2394 | 0 | return( -1 ); |
2395 | 0 | } |
2396 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
2397 | 0 | { |
2398 | 0 | maximum_string_index = (size_t) ( floating_point_value_size >> 2 ) + 3; |
2399 | 0 | } |
2400 | 0 | else |
2401 | 0 | { |
2402 | | /* The string is at least a single digit with an end of string character |
2403 | | */ |
2404 | 0 | maximum_string_index = 2; |
2405 | |
|
2406 | 0 | bit_shift = (uint8_t) ( floating_point_value_size - 1 ); |
2407 | |
|
2408 | 0 | divider = 1; |
2409 | |
|
2410 | 0 | value_64bit = ~( ( ~( (uint64_t) 1 << bit_shift ) >> bit_shift ) << bit_shift ); |
2411 | |
|
2412 | 0 | while( ( value_64bit / divider ) >= 10 ) |
2413 | 0 | { |
2414 | 0 | divider *= 10; |
2415 | |
|
2416 | 0 | maximum_string_index += 1; |
2417 | 0 | } |
2418 | 0 | } |
2419 | 0 | maximum_string_index += safe_utf16_string_index; |
2420 | |
|
2421 | 0 | if( maximum_string_index > (size_t) SSIZE_MAX ) |
2422 | 0 | { |
2423 | 0 | libcerror_error_set( |
2424 | 0 | error, |
2425 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2426 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2427 | 0 | "%s: invalid maximum string index value exceeds maximum.", |
2428 | 0 | function ); |
2429 | |
|
2430 | 0 | return( -1 ); |
2431 | 0 | } |
2432 | 0 | value_64bit = 0; |
2433 | |
|
2434 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
2435 | 0 | { |
2436 | 0 | character_value = utf16_string[ safe_utf16_string_index++ ]; |
2437 | |
|
2438 | 0 | if( character_value != (uint16_t) '0' ) |
2439 | 0 | { |
2440 | 0 | libcerror_error_set( |
2441 | 0 | error, |
2442 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2443 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
2444 | 0 | "%s: unsupported character value: 0x%02" PRIx16 " at index: %d.", |
2445 | 0 | function, |
2446 | 0 | character_value, |
2447 | 0 | safe_utf16_string_index ); |
2448 | |
|
2449 | 0 | return( -1 ); |
2450 | 0 | } |
2451 | 0 | character_value = utf16_string[ safe_utf16_string_index++ ]; |
2452 | |
|
2453 | 0 | if( character_value != (uint16_t) 'x' ) |
2454 | 0 | { |
2455 | 0 | libcerror_error_set( |
2456 | 0 | error, |
2457 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2458 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
2459 | 0 | "%s: unsupported character value: 0x%02" PRIx16 " at index: %d.", |
2460 | 0 | function, |
2461 | 0 | character_value, |
2462 | 0 | safe_utf16_string_index ); |
2463 | |
|
2464 | 0 | return( -1 ); |
2465 | 0 | } |
2466 | 0 | while( safe_utf16_string_index < utf16_string_length ) |
2467 | 0 | { |
2468 | 0 | character_value = utf16_string[ safe_utf16_string_index ]; |
2469 | |
|
2470 | 0 | if( character_value == 0 ) |
2471 | 0 | { |
2472 | 0 | break; |
2473 | 0 | } |
2474 | 0 | if( safe_utf16_string_index > (size_t) maximum_string_index ) |
2475 | 0 | { |
2476 | 0 | libcerror_error_set( |
2477 | 0 | error, |
2478 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2479 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
2480 | 0 | "%s: string too large.", |
2481 | 0 | function ); |
2482 | |
|
2483 | 0 | return( -1 ); |
2484 | 0 | } |
2485 | 0 | value_64bit <<= 4; |
2486 | |
|
2487 | 0 | if( ( character_value >= (uint16_t) '0' ) |
2488 | 0 | && ( character_value <= (uint16_t) '9' ) ) |
2489 | 0 | { |
2490 | 0 | byte_value = (uint8_t) ( character_value - (uint16_t) '0' ); |
2491 | 0 | } |
2492 | 0 | else if( ( character_value >= (uint16_t) 'A' ) |
2493 | 0 | && ( character_value <= (uint16_t) 'F' ) ) |
2494 | 0 | { |
2495 | 0 | byte_value = (uint8_t) ( character_value - (uint16_t) 'A' + 10 ); |
2496 | 0 | } |
2497 | 0 | else if( ( character_value >= (uint16_t) 'a' ) |
2498 | 0 | && ( character_value <= (uint16_t) 'f' ) ) |
2499 | 0 | { |
2500 | 0 | byte_value = (uint8_t) ( character_value - (uint16_t) 'a' + 10 ); |
2501 | 0 | } |
2502 | 0 | else |
2503 | 0 | { |
2504 | 0 | libcerror_error_set( |
2505 | 0 | error, |
2506 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2507 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
2508 | 0 | "%s: unsupported character value: 0x04%" PRIx16 " at index: %d.", |
2509 | 0 | function, |
2510 | 0 | character_value, |
2511 | 0 | safe_utf16_string_index ); |
2512 | |
|
2513 | 0 | return( -1 ); |
2514 | 0 | } |
2515 | 0 | value_64bit += byte_value; |
2516 | |
|
2517 | 0 | safe_utf16_string_index++; |
2518 | 0 | } |
2519 | 0 | } |
2520 | 0 | else |
2521 | 0 | { |
2522 | 0 | value_float64.floating_point = 0.0; |
2523 | |
|
2524 | 0 | character_value = utf16_string[ safe_utf16_string_index ]; |
2525 | | |
2526 | | /* In the maximum possible string one character is substituted for the sign |
2527 | | */ |
2528 | 0 | if( character_value == (uint16_t) '-' ) |
2529 | 0 | { |
2530 | 0 | safe_utf16_string_index++; |
2531 | |
|
2532 | 0 | sign = -1; |
2533 | 0 | } |
2534 | 0 | else if( character_value == (uint16_t) '+' ) |
2535 | 0 | { |
2536 | 0 | safe_utf16_string_index++; |
2537 | 0 | } |
2538 | 0 | while( safe_utf16_string_index < utf16_string_length ) |
2539 | 0 | { |
2540 | 0 | character_value = utf16_string[ safe_utf16_string_index ]; |
2541 | |
|
2542 | 0 | if( character_value == 0 ) |
2543 | 0 | { |
2544 | 0 | break; |
2545 | 0 | } |
2546 | 0 | if( safe_utf16_string_index > (size_t) maximum_string_index ) |
2547 | 0 | { |
2548 | 0 | libcerror_error_set( |
2549 | 0 | error, |
2550 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2551 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
2552 | 0 | "%s: string too large.", |
2553 | 0 | function ); |
2554 | |
|
2555 | 0 | return( -1 ); |
2556 | 0 | } |
2557 | 0 | if( character_value == (uint16_t) '.' ) |
2558 | 0 | { |
2559 | 0 | break; |
2560 | 0 | } |
2561 | 0 | if( ( character_value < (uint16_t) '0' ) |
2562 | 0 | || ( character_value > (uint16_t) '9' ) ) |
2563 | 0 | { |
2564 | 0 | libcerror_error_set( |
2565 | 0 | error, |
2566 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2567 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
2568 | 0 | "%s: unsupported character value: 0x%02" PRIx16 " at index: %d.", |
2569 | 0 | function, |
2570 | 0 | character_value, |
2571 | 0 | safe_utf16_string_index ); |
2572 | |
|
2573 | 0 | return( -1 ); |
2574 | 0 | } |
2575 | 0 | value_float64.floating_point *= 10; |
2576 | 0 | value_float64.floating_point += character_value - (uint16_t) '0'; |
2577 | |
|
2578 | 0 | safe_utf16_string_index++; |
2579 | 0 | } |
2580 | 0 | fraction_index = safe_utf16_string_index; |
2581 | |
|
2582 | 0 | safe_utf16_string_index++; |
2583 | 0 | utf16_string_length--; |
2584 | |
|
2585 | 0 | if( utf16_string_length > (size_t) maximum_string_index ) |
2586 | 0 | { |
2587 | 0 | libcerror_error_set( |
2588 | 0 | error, |
2589 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2590 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
2591 | 0 | "%s: string too large.", |
2592 | 0 | function ); |
2593 | |
|
2594 | 0 | return( -1 ); |
2595 | 0 | } |
2596 | 0 | while( fraction_index < utf16_string_length ) |
2597 | 0 | { |
2598 | 0 | character_value = utf16_string[ utf16_string_length ]; |
2599 | |
|
2600 | 0 | if( character_value == 0 ) |
2601 | 0 | { |
2602 | 0 | break; |
2603 | 0 | } |
2604 | 0 | if( ( character_value < (uint16_t) '0' ) |
2605 | 0 | || ( character_value > (uint16_t) '9' ) ) |
2606 | 0 | { |
2607 | 0 | libcerror_error_set( |
2608 | 0 | error, |
2609 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2610 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
2611 | 0 | "%s: unsupported character value: 0x%02" PRIx16 " at index: %d.", |
2612 | 0 | function, |
2613 | 0 | character_value, |
2614 | 0 | utf16_string_length ); |
2615 | |
|
2616 | 0 | return( -1 ); |
2617 | 0 | } |
2618 | 0 | value_fraction /= 10; |
2619 | 0 | value_fraction += character_value - (uint16_t) '0'; |
2620 | |
|
2621 | 0 | safe_utf16_string_index++; |
2622 | 0 | utf16_string_length--; |
2623 | 0 | } |
2624 | 0 | if( value_fraction != 0.0 ) |
2625 | 0 | { |
2626 | 0 | value_float64.floating_point += value_fraction / 10; |
2627 | 0 | } |
2628 | 0 | if( sign == -1 ) |
2629 | 0 | { |
2630 | 0 | value_float64.floating_point *= 1.0; |
2631 | 0 | } |
2632 | 0 | value_64bit = value_float64.integer; |
2633 | 0 | } |
2634 | 0 | *utf16_string_index = safe_utf16_string_index; |
2635 | 0 | *floating_point_value = value_64bit; |
2636 | |
|
2637 | 0 | return( 1 ); |
2638 | 0 | } |
2639 | | |
2640 | | /* Copies an UTF-32 encoded string of a floating point value |
2641 | | * The floating_point value size is in bits |
2642 | | * Returns 1 if successful or -1 on error |
2643 | | */ |
2644 | | int libfvalue_utf32_string_copy_from_floating_point( |
2645 | | uint32_t *utf32_string, |
2646 | | size_t utf32_string_size, |
2647 | | uint64_t floating_point_value, |
2648 | | size_t floating_point_value_size, |
2649 | | uint32_t string_format_flags, |
2650 | | libcerror_error_t **error ) |
2651 | 0 | { |
2652 | 0 | static char *function = "libfvalue_utf32_string_copy_from_floating_point"; |
2653 | 0 | size_t utf32_string_index = 0; |
2654 | |
|
2655 | 0 | if( libfvalue_utf32_string_with_index_copy_from_floating_point( |
2656 | 0 | utf32_string, |
2657 | 0 | utf32_string_size, |
2658 | 0 | &utf32_string_index, |
2659 | 0 | floating_point_value, |
2660 | 0 | floating_point_value_size, |
2661 | 0 | string_format_flags, |
2662 | 0 | error ) != 1 ) |
2663 | 0 | { |
2664 | 0 | libcerror_error_set( |
2665 | 0 | error, |
2666 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2667 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
2668 | 0 | "%s: unable to copy floating point value to UTF-32 string.", |
2669 | 0 | function ); |
2670 | |
|
2671 | 0 | return( -1 ); |
2672 | 0 | } |
2673 | 0 | return( 1 ); |
2674 | 0 | } |
2675 | | |
2676 | | /* Copies an UTF-32 encoded string of from floating_point value |
2677 | | * The floating_point value size is in bits |
2678 | | * Returns 1 if successful or -1 on error |
2679 | | */ |
2680 | | int libfvalue_utf32_string_with_index_copy_from_floating_point( |
2681 | | uint32_t *utf32_string, |
2682 | | size_t utf32_string_size, |
2683 | | size_t *utf32_string_index, |
2684 | | uint64_t floating_point_value, |
2685 | | size_t floating_point_value_size, |
2686 | | uint32_t string_format_flags, |
2687 | | libcerror_error_t **error ) |
2688 | 0 | { |
2689 | 0 | byte_stream_float32_t value_float32; |
2690 | 0 | byte_stream_float64_t value_float64; |
2691 | |
|
2692 | 0 | static char *function = "libfvalue_utf32_string_with_index_copy_from_floating_point"; |
2693 | 0 | size_t safe_utf32_string_index = 0; |
2694 | 0 | uint64_t divider = 0; |
2695 | 0 | uint64_t value_fraction = 0; |
2696 | 0 | uint32_t string_format_type = 0; |
2697 | 0 | uint32_t supported_flags = 0; |
2698 | 0 | int16_t exponent10 = 0; |
2699 | 0 | int16_t exponent2 = 0; |
2700 | 0 | uint8_t byte_value = 0; |
2701 | 0 | uint8_t digit_index = 0; |
2702 | 0 | uint8_t exponent_sign = 0; |
2703 | 0 | uint8_t is_indeterminate = 0; |
2704 | 0 | uint8_t is_infinite = 0; |
2705 | 0 | uint8_t is_not_a_number = 0; |
2706 | 0 | uint8_t is_signed = 0; |
2707 | 0 | uint8_t number_of_characters = 0; |
2708 | 0 | int8_t bit_shift = 0; |
2709 | 0 | double exponent_value = 0.0; |
2710 | 0 | double value_float = 0.0; |
2711 | |
|
2712 | 0 | if( utf32_string == NULL ) |
2713 | 0 | { |
2714 | 0 | libcerror_error_set( |
2715 | 0 | error, |
2716 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2717 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2718 | 0 | "%s: invalid UTF-32 string.", |
2719 | 0 | function ); |
2720 | |
|
2721 | 0 | return( -1 ); |
2722 | 0 | } |
2723 | 0 | if( utf32_string_size > (size_t) SSIZE_MAX ) |
2724 | 0 | { |
2725 | 0 | libcerror_error_set( |
2726 | 0 | error, |
2727 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2728 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2729 | 0 | "%s: invalid UTF-32 string size value exceeds maximum.", |
2730 | 0 | function ); |
2731 | |
|
2732 | 0 | return( -1 ); |
2733 | 0 | } |
2734 | 0 | if( utf32_string_index == NULL ) |
2735 | 0 | { |
2736 | 0 | libcerror_error_set( |
2737 | 0 | error, |
2738 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2739 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2740 | 0 | "%s: invalid UTF-32 string index.", |
2741 | 0 | function ); |
2742 | |
|
2743 | 0 | return( -1 ); |
2744 | 0 | } |
2745 | 0 | if( *utf32_string_index >= utf32_string_size ) |
2746 | 0 | { |
2747 | 0 | libcerror_error_set( |
2748 | 0 | error, |
2749 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2750 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
2751 | 0 | "%s: invalid UTF-32 string index value out of bounds.", |
2752 | 0 | function ); |
2753 | |
|
2754 | 0 | return( -1 ); |
2755 | 0 | } |
2756 | 0 | safe_utf32_string_index = *utf32_string_index; |
2757 | |
|
2758 | 0 | if( ( floating_point_value_size != 32 ) |
2759 | 0 | && ( floating_point_value_size != 64 ) ) |
2760 | 0 | { |
2761 | 0 | libcerror_error_set( |
2762 | 0 | error, |
2763 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2764 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
2765 | 0 | "%s: unsupported floating point value size.", |
2766 | 0 | function ); |
2767 | |
|
2768 | 0 | return( -1 ); |
2769 | 0 | } |
2770 | 0 | supported_flags = 0x000000ffUL; |
2771 | |
|
2772 | 0 | if( ( string_format_flags & ~( supported_flags ) ) != 0 ) |
2773 | 0 | { |
2774 | 0 | libcerror_error_set( |
2775 | 0 | error, |
2776 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2777 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
2778 | 0 | "%s: unsupported string format flags: 0x%08" PRIx32 ".", |
2779 | 0 | function, |
2780 | 0 | string_format_flags ); |
2781 | |
|
2782 | 0 | return( -1 ); |
2783 | 0 | } |
2784 | 0 | string_format_type = string_format_flags & 0x000000ffUL; |
2785 | |
|
2786 | 0 | if( ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_DECIMAL ) |
2787 | 0 | && ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) ) |
2788 | 0 | { |
2789 | 0 | libcerror_error_set( |
2790 | 0 | error, |
2791 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2792 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
2793 | 0 | "%s: unsupported string format type.", |
2794 | 0 | function ); |
2795 | |
|
2796 | 0 | return( -1 ); |
2797 | 0 | } |
2798 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
2799 | 0 | { |
2800 | 0 | number_of_characters = (uint8_t) ( floating_point_value_size >> 2 ) + 3; |
2801 | 0 | } |
2802 | 0 | else |
2803 | 0 | { |
2804 | 0 | bit_shift = (int8_t) ( floating_point_value_size - 1 ); |
2805 | 0 | is_signed = (uint8_t) ( floating_point_value >> bit_shift ); |
2806 | |
|
2807 | 0 | if( is_signed != 0 ) |
2808 | 0 | { |
2809 | 0 | floating_point_value &= ~( (uint64_t) 1 << bit_shift ); |
2810 | 0 | } |
2811 | 0 | switch( floating_point_value_size ) |
2812 | 0 | { |
2813 | 0 | case 32: |
2814 | 0 | if( floating_point_value == 0x7f800000UL ) |
2815 | 0 | { |
2816 | 0 | is_infinite = 1; |
2817 | 0 | } |
2818 | 0 | else if( ( is_signed != 0 ) |
2819 | 0 | && ( floating_point_value == 0x7fc00000UL ) ) |
2820 | 0 | { |
2821 | 0 | is_indeterminate = 1; |
2822 | 0 | } |
2823 | 0 | else if( ( floating_point_value >= 0x7f800001UL ) |
2824 | 0 | && ( floating_point_value <= 0x7fffffffUL ) ) |
2825 | 0 | { |
2826 | 0 | is_not_a_number = 1; |
2827 | 0 | } |
2828 | 0 | else if( floating_point_value != 0 ) |
2829 | 0 | { |
2830 | 0 | value_float32.integer = (uint32_t) floating_point_value; |
2831 | 0 | value_float = (double) value_float32.floating_point; |
2832 | |
|
2833 | 0 | exponent2 = (int16_t) ( floating_point_value >> 23 ); |
2834 | |
|
2835 | 0 | if( exponent2 == 0 ) |
2836 | 0 | { |
2837 | 0 | exponent2 = -126; |
2838 | 0 | } |
2839 | 0 | else |
2840 | 0 | { |
2841 | 0 | exponent2 -= 127; |
2842 | 0 | } |
2843 | 0 | } |
2844 | 0 | break; |
2845 | | |
2846 | 0 | case 64: |
2847 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
2848 | | if( floating_point_value == 0x7ff0000000000000UL ) |
2849 | | #else |
2850 | 0 | if( floating_point_value == 0x7ff0000000000000ULL ) |
2851 | 0 | #endif |
2852 | 0 | { |
2853 | 0 | is_infinite = 1; |
2854 | 0 | } |
2855 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
2856 | | else if( ( is_signed != 0 ) |
2857 | | && ( floating_point_value == 0x7ff8000000000000UL ) ) |
2858 | | #else |
2859 | 0 | else if( ( is_signed != 0 ) |
2860 | 0 | && ( floating_point_value == 0x7ff8000000000000ULL ) ) |
2861 | 0 | #endif |
2862 | 0 | { |
2863 | 0 | is_indeterminate = 1; |
2864 | 0 | } |
2865 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
2866 | | else if( ( floating_point_value >= 0x7ff0000000000001UL ) |
2867 | | && ( floating_point_value <= 0x7fffffffffffffffUL ) ) |
2868 | | #else |
2869 | 0 | else if( ( floating_point_value >= 0x7ff0000000000001ULL ) |
2870 | 0 | && ( floating_point_value <= 0x7fffffffffffffffULL ) ) |
2871 | 0 | #endif |
2872 | 0 | { |
2873 | 0 | is_not_a_number = 1; |
2874 | 0 | } |
2875 | 0 | else if( floating_point_value != 0 ) |
2876 | 0 | { |
2877 | 0 | value_float64.integer = (uint64_t) floating_point_value; |
2878 | 0 | value_float = (double) value_float64.floating_point; |
2879 | |
|
2880 | 0 | exponent2 = (int16_t) ( floating_point_value >> 52 ); |
2881 | |
|
2882 | 0 | if( exponent2 == 0 ) |
2883 | 0 | { |
2884 | 0 | exponent2 = -1023; |
2885 | 0 | } |
2886 | 0 | else |
2887 | 0 | { |
2888 | 0 | exponent2 -= 1023; |
2889 | 0 | } |
2890 | 0 | } |
2891 | 0 | break; |
2892 | 0 | } |
2893 | 0 | if( is_indeterminate != 0 ) |
2894 | 0 | { |
2895 | | /* "Ind\x00" */ |
2896 | 0 | number_of_characters = 4; |
2897 | 0 | } |
2898 | 0 | else if( is_infinite != 0 ) |
2899 | 0 | { |
2900 | | /* "Inf\x00" */ |
2901 | 0 | number_of_characters = 4; |
2902 | 0 | } |
2903 | 0 | else if( is_not_a_number != 0 ) |
2904 | 0 | { |
2905 | | /* "Nan\x00" */ |
2906 | 0 | number_of_characters = 4; |
2907 | 0 | } |
2908 | 0 | else |
2909 | 0 | { |
2910 | | /* "[-]0.000000e[+-]000\x00" */ |
2911 | 0 | if( is_signed != 0 ) |
2912 | 0 | { |
2913 | 0 | number_of_characters = 15; |
2914 | 0 | } |
2915 | 0 | else |
2916 | 0 | { |
2917 | 0 | number_of_characters = 14; |
2918 | 0 | } |
2919 | 0 | } |
2920 | 0 | } |
2921 | 0 | if( ( number_of_characters > utf32_string_size ) |
2922 | 0 | || ( safe_utf32_string_index > ( utf32_string_size - number_of_characters ) ) ) |
2923 | 0 | { |
2924 | 0 | libcerror_error_set( |
2925 | 0 | error, |
2926 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2927 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL, |
2928 | 0 | "%s: UTF-32 string size too small.", |
2929 | 0 | function ); |
2930 | |
|
2931 | 0 | return( -1 ); |
2932 | 0 | } |
2933 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
2934 | 0 | { |
2935 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) '0'; |
2936 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'x'; |
2937 | |
|
2938 | 0 | bit_shift = (int8_t) ( floating_point_value_size - 4 ); |
2939 | |
|
2940 | 0 | do |
2941 | 0 | { |
2942 | 0 | byte_value = (uint32_t) ( ( floating_point_value >> bit_shift ) & 0x0f ); |
2943 | |
|
2944 | 0 | if( byte_value <= 9 ) |
2945 | 0 | { |
2946 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) '0' + byte_value; |
2947 | 0 | } |
2948 | 0 | else |
2949 | 0 | { |
2950 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'a' + byte_value - 10; |
2951 | 0 | } |
2952 | 0 | bit_shift -= 4; |
2953 | 0 | } |
2954 | 0 | while( bit_shift >= 0 ); |
2955 | 0 | } |
2956 | 0 | else |
2957 | 0 | { |
2958 | 0 | if( is_indeterminate != 0 ) |
2959 | 0 | { |
2960 | | /* "Ind\x00" */ |
2961 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'I'; |
2962 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'n'; |
2963 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'd'; |
2964 | 0 | } |
2965 | 0 | else if( is_infinite != 0 ) |
2966 | 0 | { |
2967 | | /* "Inf\x00" */ |
2968 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'I'; |
2969 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'n'; |
2970 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'f'; |
2971 | 0 | } |
2972 | 0 | else if( is_not_a_number != 0 ) |
2973 | 0 | { |
2974 | | /* "Nan\x00" */ |
2975 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'N'; |
2976 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'a'; |
2977 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'N'; |
2978 | 0 | } |
2979 | 0 | else |
2980 | 0 | { |
2981 | | /* "[-]0.000000e[+-]000\x00" */ |
2982 | 0 | if( is_signed != 0 ) |
2983 | 0 | { |
2984 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) '-'; |
2985 | 0 | } |
2986 | 0 | if( exponent2 < 0 ) |
2987 | 0 | { |
2988 | 0 | exponent_sign = (uint32_t) '-'; |
2989 | 0 | exponent2 *= -1; |
2990 | 0 | } |
2991 | 0 | else |
2992 | 0 | { |
2993 | 0 | exponent_sign = (uint32_t) '+'; |
2994 | 0 | } |
2995 | 0 | exponent_value = 1.0; |
2996 | 0 | exponent10 = 0; |
2997 | |
|
2998 | 0 | while( exponent2 > 0 ) |
2999 | 0 | { |
3000 | 0 | exponent_value *= 2; |
3001 | 0 | exponent2--; |
3002 | |
|
3003 | 0 | if( exponent_value >= 10.0 ) |
3004 | 0 | { |
3005 | 0 | exponent_value /= 10.0; |
3006 | 0 | exponent10++; |
3007 | |
|
3008 | 0 | if( exponent_sign == (uint32_t) '-' ) |
3009 | 0 | { |
3010 | 0 | value_float *= 10.0; |
3011 | 0 | } |
3012 | 0 | else |
3013 | 0 | { |
3014 | 0 | value_float /= 10.0; |
3015 | 0 | } |
3016 | 0 | } |
3017 | 0 | } |
3018 | 0 | if( value_float != 0.0 ) |
3019 | 0 | { |
3020 | 0 | while( ( value_float < 1.0 ) |
3021 | 0 | || ( value_float >= 10.0 ) ) |
3022 | 0 | { |
3023 | 0 | exponent10++; |
3024 | |
|
3025 | 0 | if( exponent_sign == (uint32_t) '-' ) |
3026 | 0 | { |
3027 | 0 | value_float *= 10; |
3028 | 0 | } |
3029 | 0 | else |
3030 | 0 | { |
3031 | 0 | value_float /= 10; |
3032 | 0 | } |
3033 | 0 | } |
3034 | 0 | } |
3035 | 0 | for( digit_index = 0; |
3036 | 0 | digit_index < 7; |
3037 | 0 | digit_index++ ) |
3038 | 0 | { |
3039 | 0 | value_fraction *= 10; |
3040 | 0 | value_fraction += (uint32_t) value_float; |
3041 | |
|
3042 | 0 | value_float -= (uint32_t) value_float; |
3043 | 0 | value_float *= 10.0; |
3044 | 0 | } |
3045 | 0 | if( value_float >= 5.0 ) |
3046 | 0 | { |
3047 | 0 | value_fraction += 1; |
3048 | 0 | } |
3049 | 0 | divider = 1000000; |
3050 | |
|
3051 | 0 | for( digit_index = 0; |
3052 | 0 | digit_index < 7; |
3053 | 0 | digit_index++ ) |
3054 | 0 | { |
3055 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) '0' + (uint32_t) ( value_fraction / divider ); |
3056 | |
|
3057 | 0 | if( digit_index == 0 ) |
3058 | 0 | { |
3059 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) '.'; |
3060 | 0 | } |
3061 | 0 | value_fraction %= divider; |
3062 | 0 | divider /= 10; |
3063 | 0 | } |
3064 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'e'; |
3065 | 0 | utf32_string[ safe_utf32_string_index++ ] = exponent_sign; |
3066 | |
|
3067 | 0 | divider = 100; |
3068 | |
|
3069 | 0 | for( digit_index = 0; |
3070 | 0 | digit_index < 3; |
3071 | 0 | digit_index++ ) |
3072 | 0 | { |
3073 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) '0' + (uint32_t) ( exponent10 / divider ); |
3074 | |
|
3075 | 0 | exponent10 %= divider; |
3076 | 0 | divider /= 10; |
3077 | 0 | } |
3078 | 0 | } |
3079 | 0 | } |
3080 | 0 | utf32_string[ safe_utf32_string_index++ ] = 0; |
3081 | |
|
3082 | 0 | *utf32_string_index = safe_utf32_string_index; |
3083 | |
|
3084 | 0 | return( 1 ); |
3085 | 0 | } |
3086 | | |
3087 | | /* Copies an UTF-32 encoded string to a floating point value |
3088 | | * The floating_point value size is in bits |
3089 | | * Returns 1 if successful or -1 on error |
3090 | | */ |
3091 | | int libfvalue_utf32_string_with_index_copy_to_floating_point( |
3092 | | uint32_t *utf32_string, |
3093 | | size_t utf32_string_length, |
3094 | | size_t *utf32_string_index, |
3095 | | uint64_t *floating_point_value, |
3096 | | size_t floating_point_value_size, |
3097 | | uint32_t string_format_flags, |
3098 | | libcerror_error_t **error ) |
3099 | 0 | { |
3100 | 0 | byte_stream_float64_t value_float64; |
3101 | |
|
3102 | 0 | static char *function = "libfvalue_utf32_string_with_index_copy_to_floating_point"; |
3103 | 0 | size_t fraction_index = 0; |
3104 | 0 | size_t maximum_string_index = 0; |
3105 | 0 | size_t safe_utf32_string_index = 0; |
3106 | 0 | uint64_t divider = 0; |
3107 | 0 | uint64_t value_64bit = 0; |
3108 | 0 | uint32_t character_value = 0; |
3109 | 0 | uint32_t string_format_type = 0; |
3110 | 0 | uint32_t supported_flags = 0; |
3111 | 0 | uint8_t byte_value = 0; |
3112 | 0 | int8_t bit_shift = 0; |
3113 | 0 | int8_t sign = 1; |
3114 | 0 | double value_fraction = 0.0; |
3115 | |
|
3116 | 0 | if( utf32_string == NULL ) |
3117 | 0 | { |
3118 | 0 | libcerror_error_set( |
3119 | 0 | error, |
3120 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3121 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3122 | 0 | "%s: invalid UTF-32 string.", |
3123 | 0 | function ); |
3124 | |
|
3125 | 0 | return( -1 ); |
3126 | 0 | } |
3127 | 0 | if( utf32_string_length > (size_t) SSIZE_MAX ) |
3128 | 0 | { |
3129 | 0 | libcerror_error_set( |
3130 | 0 | error, |
3131 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3132 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
3133 | 0 | "%s: invalid UTF-32 string size value exceeds maximum.", |
3134 | 0 | function ); |
3135 | |
|
3136 | 0 | return( -1 ); |
3137 | 0 | } |
3138 | 0 | if( utf32_string_index == NULL ) |
3139 | 0 | { |
3140 | 0 | libcerror_error_set( |
3141 | 0 | error, |
3142 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3143 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3144 | 0 | "%s: invalid UTF-32 string index.", |
3145 | 0 | function ); |
3146 | |
|
3147 | 0 | return( -1 ); |
3148 | 0 | } |
3149 | 0 | if( *utf32_string_index >= utf32_string_length ) |
3150 | 0 | { |
3151 | 0 | libcerror_error_set( |
3152 | 0 | error, |
3153 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3154 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
3155 | 0 | "%s: invalid UTF-32 string index value out of bounds.", |
3156 | 0 | function ); |
3157 | |
|
3158 | 0 | return( -1 ); |
3159 | 0 | } |
3160 | 0 | safe_utf32_string_index = *utf32_string_index; |
3161 | |
|
3162 | 0 | if( floating_point_value == NULL ) |
3163 | 0 | { |
3164 | 0 | libcerror_error_set( |
3165 | 0 | error, |
3166 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3167 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3168 | 0 | "%s: invalid floating point value.", |
3169 | 0 | function ); |
3170 | |
|
3171 | 0 | return( -1 ); |
3172 | 0 | } |
3173 | 0 | if( ( floating_point_value_size != 32 ) |
3174 | 0 | && ( floating_point_value_size != 64 ) ) |
3175 | 0 | { |
3176 | 0 | libcerror_error_set( |
3177 | 0 | error, |
3178 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3179 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
3180 | 0 | "%s: unsupported floating point value size.", |
3181 | 0 | function ); |
3182 | |
|
3183 | 0 | return( -1 ); |
3184 | 0 | } |
3185 | 0 | supported_flags = 0x000000ffUL; |
3186 | |
|
3187 | 0 | if( ( string_format_flags & ~( supported_flags ) ) != 0 ) |
3188 | 0 | { |
3189 | 0 | libcerror_error_set( |
3190 | 0 | error, |
3191 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3192 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
3193 | 0 | "%s: unsupported string format flags: 0x%08" PRIx32 ".", |
3194 | 0 | function, |
3195 | 0 | string_format_flags ); |
3196 | |
|
3197 | 0 | return( -1 ); |
3198 | 0 | } |
3199 | 0 | string_format_type = string_format_flags & 0x000000ffUL; |
3200 | |
|
3201 | 0 | if( ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_DECIMAL ) |
3202 | 0 | && ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) ) |
3203 | 0 | { |
3204 | 0 | libcerror_error_set( |
3205 | 0 | error, |
3206 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3207 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
3208 | 0 | "%s: unsupported string format type.", |
3209 | 0 | function ); |
3210 | |
|
3211 | 0 | return( -1 ); |
3212 | 0 | } |
3213 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
3214 | 0 | { |
3215 | 0 | maximum_string_index = (size_t) ( floating_point_value_size >> 2 ) + 3; |
3216 | 0 | } |
3217 | 0 | else |
3218 | 0 | { |
3219 | | /* The string is at least a single digit with an end of string character |
3220 | | */ |
3221 | 0 | maximum_string_index = 2; |
3222 | |
|
3223 | 0 | bit_shift = (uint8_t) ( floating_point_value_size - 1 ); |
3224 | |
|
3225 | 0 | divider = 1; |
3226 | |
|
3227 | 0 | value_64bit = ~( ( ~( (uint64_t) 1 << bit_shift ) >> bit_shift ) << bit_shift ); |
3228 | |
|
3229 | 0 | while( ( value_64bit / divider ) >= 10 ) |
3230 | 0 | { |
3231 | 0 | divider *= 10; |
3232 | |
|
3233 | 0 | maximum_string_index += 1; |
3234 | 0 | } |
3235 | 0 | } |
3236 | 0 | maximum_string_index += safe_utf32_string_index; |
3237 | |
|
3238 | 0 | if( maximum_string_index > (size_t) SSIZE_MAX ) |
3239 | 0 | { |
3240 | 0 | libcerror_error_set( |
3241 | 0 | error, |
3242 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3243 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM, |
3244 | 0 | "%s: invalid maximum string index value exceeds maximum.", |
3245 | 0 | function ); |
3246 | |
|
3247 | 0 | return( -1 ); |
3248 | 0 | } |
3249 | 0 | value_64bit = 0; |
3250 | |
|
3251 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
3252 | 0 | { |
3253 | 0 | character_value = utf32_string[ safe_utf32_string_index++ ]; |
3254 | |
|
3255 | 0 | if(character_value != (uint32_t) '0' ) |
3256 | 0 | { |
3257 | 0 | libcerror_error_set( |
3258 | 0 | error, |
3259 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3260 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
3261 | 0 | "%s: unsupported character value: 0x%02" PRIx32 " at index: %d.", |
3262 | 0 | function, |
3263 | 0 | character_value, |
3264 | 0 | safe_utf32_string_index ); |
3265 | |
|
3266 | 0 | return( -1 ); |
3267 | 0 | } |
3268 | 0 | character_value = utf32_string[ safe_utf32_string_index++ ]; |
3269 | |
|
3270 | 0 | if( character_value != (uint32_t) 'x' ) |
3271 | 0 | { |
3272 | 0 | libcerror_error_set( |
3273 | 0 | error, |
3274 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3275 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
3276 | 0 | "%s: unsupported character value: 0x%02" PRIx32 " at index: %d.", |
3277 | 0 | function, |
3278 | 0 | character_value, |
3279 | 0 | safe_utf32_string_index ); |
3280 | |
|
3281 | 0 | return( -1 ); |
3282 | 0 | } |
3283 | 0 | while( safe_utf32_string_index < utf32_string_length ) |
3284 | 0 | { |
3285 | 0 | character_value = utf32_string[ safe_utf32_string_index ]; |
3286 | |
|
3287 | 0 | if( character_value == 0 ) |
3288 | 0 | { |
3289 | 0 | break; |
3290 | 0 | } |
3291 | 0 | if( safe_utf32_string_index > (size_t) maximum_string_index ) |
3292 | 0 | { |
3293 | 0 | libcerror_error_set( |
3294 | 0 | error, |
3295 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3296 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
3297 | 0 | "%s: string too large.", |
3298 | 0 | function ); |
3299 | |
|
3300 | 0 | return( -1 ); |
3301 | 0 | } |
3302 | 0 | value_64bit <<= 4; |
3303 | |
|
3304 | 0 | if( ( character_value >= (uint32_t) '0' ) |
3305 | 0 | && ( character_value <= (uint32_t) '9' ) ) |
3306 | 0 | { |
3307 | 0 | byte_value = (uint8_t) ( character_value - (uint32_t) '0' ); |
3308 | 0 | } |
3309 | 0 | else if( ( character_value >= (uint32_t) 'A' ) |
3310 | 0 | && ( character_value <= (uint32_t) 'F' ) ) |
3311 | 0 | { |
3312 | 0 | byte_value = (uint8_t) ( character_value - (uint32_t) 'A' + 10 ); |
3313 | 0 | } |
3314 | 0 | else if( ( character_value >= (uint32_t) 'a' ) |
3315 | 0 | && ( character_value <= (uint32_t) 'f' ) ) |
3316 | 0 | { |
3317 | 0 | byte_value = (uint8_t) ( character_value - (uint32_t) 'a' + 10 ); |
3318 | 0 | } |
3319 | 0 | else |
3320 | 0 | { |
3321 | 0 | libcerror_error_set( |
3322 | 0 | error, |
3323 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3324 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
3325 | 0 | "%s: unsupported character value: 0x08%" PRIx32 " at index: %d.", |
3326 | 0 | function, |
3327 | 0 | character_value, |
3328 | 0 | safe_utf32_string_index ); |
3329 | |
|
3330 | 0 | return( -1 ); |
3331 | 0 | } |
3332 | 0 | value_64bit += byte_value; |
3333 | |
|
3334 | 0 | safe_utf32_string_index++; |
3335 | 0 | } |
3336 | 0 | } |
3337 | 0 | else |
3338 | 0 | { |
3339 | 0 | value_float64.floating_point = 0.0; |
3340 | |
|
3341 | 0 | character_value = utf32_string[ safe_utf32_string_index ]; |
3342 | | |
3343 | | /* In the maximum possible string one character is substituted for the sign |
3344 | | */ |
3345 | 0 | if( character_value == (uint32_t) '-' ) |
3346 | 0 | { |
3347 | 0 | safe_utf32_string_index++; |
3348 | |
|
3349 | 0 | sign = -1; |
3350 | 0 | } |
3351 | 0 | else if( character_value == (uint32_t) '+' ) |
3352 | 0 | { |
3353 | 0 | safe_utf32_string_index++; |
3354 | 0 | } |
3355 | 0 | while( safe_utf32_string_index < utf32_string_length ) |
3356 | 0 | { |
3357 | 0 | character_value = utf32_string[ safe_utf32_string_index ]; |
3358 | |
|
3359 | 0 | if( character_value == 0 ) |
3360 | 0 | { |
3361 | 0 | break; |
3362 | 0 | } |
3363 | 0 | if( safe_utf32_string_index > (size_t) maximum_string_index ) |
3364 | 0 | { |
3365 | 0 | libcerror_error_set( |
3366 | 0 | error, |
3367 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3368 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
3369 | 0 | "%s: string too large.", |
3370 | 0 | function ); |
3371 | |
|
3372 | 0 | return( -1 ); |
3373 | 0 | } |
3374 | 0 | if( character_value == (uint32_t) '.' ) |
3375 | 0 | { |
3376 | 0 | break; |
3377 | 0 | } |
3378 | 0 | if( ( character_value < (uint32_t) '0' ) |
3379 | 0 | || ( character_value > (uint32_t) '9' ) ) |
3380 | 0 | { |
3381 | 0 | libcerror_error_set( |
3382 | 0 | error, |
3383 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3384 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
3385 | 0 | "%s: unsupported character value: 0x%02" PRIx32 " at index: %d.", |
3386 | 0 | function, |
3387 | 0 | character_value, |
3388 | 0 | safe_utf32_string_index ); |
3389 | |
|
3390 | 0 | return( -1 ); |
3391 | 0 | } |
3392 | 0 | value_float64.floating_point *= 10; |
3393 | 0 | value_float64.floating_point += character_value - (uint32_t) '0'; |
3394 | |
|
3395 | 0 | safe_utf32_string_index++; |
3396 | 0 | } |
3397 | 0 | fraction_index = safe_utf32_string_index; |
3398 | |
|
3399 | 0 | safe_utf32_string_index++; |
3400 | 0 | utf32_string_length--; |
3401 | |
|
3402 | 0 | if( utf32_string_length > (size_t) maximum_string_index ) |
3403 | 0 | { |
3404 | 0 | libcerror_error_set( |
3405 | 0 | error, |
3406 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3407 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
3408 | 0 | "%s: string too large.", |
3409 | 0 | function ); |
3410 | |
|
3411 | 0 | return( -1 ); |
3412 | 0 | } |
3413 | 0 | while( fraction_index < utf32_string_length ) |
3414 | 0 | { |
3415 | 0 | character_value = utf32_string[ utf32_string_length ]; |
3416 | |
|
3417 | 0 | if( character_value == 0 ) |
3418 | 0 | { |
3419 | 0 | break; |
3420 | 0 | } |
3421 | 0 | if( ( character_value < (uint32_t) '0' ) |
3422 | 0 | || ( character_value > (uint32_t) '9' ) ) |
3423 | 0 | { |
3424 | 0 | libcerror_error_set( |
3425 | 0 | error, |
3426 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3427 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
3428 | 0 | "%s: unsupported character value: 0x%02" PRIx32 " at index: %d.", |
3429 | 0 | function, |
3430 | 0 | character_value, |
3431 | 0 | utf32_string_length ); |
3432 | |
|
3433 | 0 | return( -1 ); |
3434 | 0 | } |
3435 | 0 | value_fraction /= 10; |
3436 | 0 | value_fraction += character_value - (uint32_t) '0'; |
3437 | |
|
3438 | 0 | safe_utf32_string_index++; |
3439 | 0 | utf32_string_length--; |
3440 | 0 | } |
3441 | 0 | if( value_fraction != 0.0 ) |
3442 | 0 | { |
3443 | 0 | value_float64.floating_point += value_fraction / 10; |
3444 | 0 | } |
3445 | 0 | if( sign == -1 ) |
3446 | 0 | { |
3447 | 0 | value_float64.floating_point *= 1.0; |
3448 | 0 | } |
3449 | 0 | value_64bit = value_float64.integer; |
3450 | 0 | } |
3451 | 0 | *utf32_string_index = safe_utf32_string_index; |
3452 | 0 | *floating_point_value = value_64bit; |
3453 | |
|
3454 | 0 | return( 1 ); |
3455 | 0 | } |
3456 | | |