/src/libewf/libfvalue/libfvalue_floating_point.c
Line | Count | Source |
1 | | /* |
2 | | * Floating point value (IEEE 754) functions |
3 | | * |
4 | | * Copyright (C) 2010-2026, 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 | | #if _BYTE_STREAM_HOST_BYTE_ORDER == _BYTE_STREAM_ENDIAN_BIG |
33 | | #define byte_stream_copy_to_uint32_native_endian byte_stream_copy_to_uint32_big_endian |
34 | | #define byte_stream_copy_to_uint64_native_endian byte_stream_copy_to_uint64_big_endian |
35 | | |
36 | | #elif _BYTE_STREAM_HOST_BYTE_ORDER == _BYTE_STREAM_ENDIAN_LITTLE |
37 | 0 | #define byte_stream_copy_to_uint32_native_endian byte_stream_copy_to_uint32_little_endian |
38 | 0 | #define byte_stream_copy_to_uint64_native_endian byte_stream_copy_to_uint64_little_endian |
39 | | |
40 | | #elif _BYTE_STREAM_HOST_BYTE_ORDER == _BYTE_STREAM_ENDIAN_MIDDLE |
41 | | #error "Unsupported middle-endian host byte-order" |
42 | | #endif |
43 | | |
44 | | /* Creates a floating point |
45 | | * Make sure the value floating_point is referencing, is set to NULL |
46 | | * Returns 1 if successful or -1 on error |
47 | | */ |
48 | | int libfvalue_floating_point_initialize( |
49 | | libfvalue_floating_point_t **floating_point, |
50 | | libcerror_error_t **error ) |
51 | 0 | { |
52 | 0 | static char *function = "libfvalue_floating_point_initialize"; |
53 | |
|
54 | 0 | if( floating_point == NULL ) |
55 | 0 | { |
56 | 0 | libcerror_error_set( |
57 | 0 | error, |
58 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
59 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
60 | 0 | "%s: invalid floating point.", |
61 | 0 | function ); |
62 | |
|
63 | 0 | return( -1 ); |
64 | 0 | } |
65 | 0 | if( *floating_point != NULL ) |
66 | 0 | { |
67 | 0 | libcerror_error_set( |
68 | 0 | error, |
69 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
70 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET, |
71 | 0 | "%s: invalid floating point value already set.", |
72 | 0 | function ); |
73 | |
|
74 | 0 | return( -1 ); |
75 | 0 | } |
76 | 0 | *floating_point = memory_allocate_structure( |
77 | 0 | libfvalue_floating_point_t ); |
78 | |
|
79 | 0 | if( *floating_point == NULL ) |
80 | 0 | { |
81 | 0 | libcerror_error_set( |
82 | 0 | error, |
83 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
84 | 0 | LIBCERROR_MEMORY_ERROR_INSUFFICIENT, |
85 | 0 | "%s: unable to create floating point.", |
86 | 0 | function ); |
87 | |
|
88 | 0 | goto on_error; |
89 | 0 | } |
90 | 0 | if( memory_set( |
91 | 0 | *floating_point, |
92 | 0 | 0, |
93 | 0 | sizeof( libfvalue_floating_point_t ) ) == NULL ) |
94 | 0 | { |
95 | 0 | libcerror_error_set( |
96 | 0 | error, |
97 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
98 | 0 | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
99 | 0 | "%s: unable to clear floating point.", |
100 | 0 | function ); |
101 | |
|
102 | 0 | goto on_error; |
103 | 0 | } |
104 | 0 | return( 1 ); |
105 | | |
106 | 0 | on_error: |
107 | 0 | if( *floating_point != NULL ) |
108 | 0 | { |
109 | 0 | memory_free( |
110 | 0 | *floating_point ); |
111 | |
|
112 | 0 | *floating_point = NULL; |
113 | 0 | } |
114 | 0 | return( -1 ); |
115 | 0 | } |
116 | | |
117 | | /* Frees a floating point |
118 | | * Returns 1 if successful or -1 on error |
119 | | */ |
120 | | int libfvalue_floating_point_free( |
121 | | libfvalue_floating_point_t **floating_point, |
122 | | libcerror_error_t **error ) |
123 | 0 | { |
124 | 0 | static char *function = "libfvalue_floating_point_free"; |
125 | |
|
126 | 0 | if( floating_point == NULL ) |
127 | 0 | { |
128 | 0 | libcerror_error_set( |
129 | 0 | error, |
130 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
131 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
132 | 0 | "%s: invalid floating point.", |
133 | 0 | function ); |
134 | |
|
135 | 0 | return( -1 ); |
136 | 0 | } |
137 | 0 | if( *floating_point != NULL ) |
138 | 0 | { |
139 | 0 | memory_free( |
140 | 0 | *floating_point ); |
141 | |
|
142 | 0 | *floating_point = NULL; |
143 | 0 | } |
144 | 0 | return( 1 ); |
145 | 0 | } |
146 | | |
147 | | /* Clones a floating point |
148 | | * Returns 1 if successful or -1 on error |
149 | | */ |
150 | | int libfvalue_floating_point_clone( |
151 | | libfvalue_floating_point_t **destination_floating_point, |
152 | | libfvalue_floating_point_t *source_floating_point, |
153 | | libcerror_error_t **error ) |
154 | 0 | { |
155 | 0 | static char *function = "libfvalue_floating_point_clone"; |
156 | |
|
157 | 0 | if( destination_floating_point == NULL ) |
158 | 0 | { |
159 | 0 | libcerror_error_set( |
160 | 0 | error, |
161 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
162 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
163 | 0 | "%s: invalid destination floating point.", |
164 | 0 | function ); |
165 | |
|
166 | 0 | return( -1 ); |
167 | 0 | } |
168 | 0 | if( *destination_floating_point != NULL ) |
169 | 0 | { |
170 | 0 | libcerror_error_set( |
171 | 0 | error, |
172 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
173 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET, |
174 | 0 | "%s: destination floating point already set.", |
175 | 0 | function ); |
176 | |
|
177 | 0 | return( -1 ); |
178 | 0 | } |
179 | 0 | if( source_floating_point == NULL ) |
180 | 0 | { |
181 | 0 | *destination_floating_point = NULL; |
182 | |
|
183 | 0 | return( 1 ); |
184 | 0 | } |
185 | 0 | *destination_floating_point = memory_allocate_structure( |
186 | 0 | libfvalue_floating_point_t ); |
187 | |
|
188 | 0 | if( *destination_floating_point == NULL ) |
189 | 0 | { |
190 | 0 | libcerror_error_set( |
191 | 0 | error, |
192 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
193 | 0 | LIBCERROR_MEMORY_ERROR_INSUFFICIENT, |
194 | 0 | "%s: unable to create destination floating point.", |
195 | 0 | function ); |
196 | |
|
197 | 0 | goto on_error; |
198 | 0 | } |
199 | 0 | if( memory_copy( |
200 | 0 | *destination_floating_point, |
201 | 0 | source_floating_point, |
202 | 0 | sizeof( libfvalue_floating_point_t ) ) == NULL ) |
203 | 0 | { |
204 | 0 | libcerror_error_set( |
205 | 0 | error, |
206 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
207 | 0 | LIBCERROR_MEMORY_ERROR_COPY_FAILED, |
208 | 0 | "%s: unable to copy floating point.", |
209 | 0 | function ); |
210 | |
|
211 | 0 | goto on_error; |
212 | 0 | } |
213 | 0 | return( 1 ); |
214 | | |
215 | 0 | on_error: |
216 | 0 | if( *destination_floating_point != NULL ) |
217 | 0 | { |
218 | 0 | memory_free( |
219 | 0 | *destination_floating_point ); |
220 | |
|
221 | 0 | *destination_floating_point = NULL; |
222 | 0 | } |
223 | 0 | return( -1 ); |
224 | 0 | } |
225 | | |
226 | | /* Copies the floating point from a byte stream |
227 | | * Returns 1 if successful or -1 on error |
228 | | */ |
229 | | int libfvalue_floating_point_copy_from_byte_stream( |
230 | | libfvalue_floating_point_t *floating_point, |
231 | | const uint8_t *byte_stream, |
232 | | size_t byte_stream_size, |
233 | | int encoding, |
234 | | libcerror_error_t **error ) |
235 | 0 | { |
236 | 0 | static char *function = "libfvalue_floating_point_copy_from_byte_stream"; |
237 | |
|
238 | 0 | if( floating_point == NULL ) |
239 | 0 | { |
240 | 0 | libcerror_error_set( |
241 | 0 | error, |
242 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
243 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
244 | 0 | "%s: invalid floating point.", |
245 | 0 | function ); |
246 | |
|
247 | 0 | return( -1 ); |
248 | 0 | } |
249 | 0 | if( byte_stream == NULL ) |
250 | 0 | { |
251 | 0 | libcerror_error_set( |
252 | 0 | error, |
253 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
254 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
255 | 0 | "%s: invalid byte stream.", |
256 | 0 | function ); |
257 | |
|
258 | 0 | return( -1 ); |
259 | 0 | } |
260 | 0 | if( byte_stream_size > (size_t) SSIZE_MAX ) |
261 | 0 | { |
262 | 0 | libcerror_error_set( |
263 | 0 | error, |
264 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
265 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
266 | 0 | "%s: invalid byte stream size value exceeds maximum.", |
267 | 0 | function ); |
268 | |
|
269 | 0 | return( -1 ); |
270 | 0 | } |
271 | 0 | if( ( encoding != LIBFVALUE_ENDIAN_BIG ) |
272 | 0 | && ( encoding != LIBFVALUE_ENDIAN_LITTLE ) |
273 | 0 | && ( encoding != LIBFVALUE_ENDIAN_NATIVE ) ) |
274 | 0 | { |
275 | 0 | libcerror_error_set( |
276 | 0 | error, |
277 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
278 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
279 | 0 | "%s: unsupported encoding.", |
280 | 0 | function ); |
281 | |
|
282 | 0 | return( -1 ); |
283 | 0 | } |
284 | 0 | switch( byte_stream_size ) |
285 | 0 | { |
286 | 0 | case 4: |
287 | 0 | if( encoding == LIBFVALUE_ENDIAN_BIG ) |
288 | 0 | { |
289 | 0 | byte_stream_copy_to_uint32_big_endian( |
290 | 0 | byte_stream, |
291 | 0 | floating_point->value ); |
292 | 0 | } |
293 | 0 | else if( encoding == LIBFVALUE_ENDIAN_LITTLE ) |
294 | 0 | { |
295 | 0 | byte_stream_copy_to_uint32_little_endian( |
296 | 0 | byte_stream, |
297 | 0 | floating_point->value ); |
298 | 0 | } |
299 | 0 | else |
300 | 0 | { |
301 | 0 | byte_stream_copy_to_uint32_native_endian( |
302 | 0 | byte_stream, |
303 | 0 | floating_point->value ); |
304 | 0 | } |
305 | 0 | break; |
306 | | |
307 | 0 | case 8: |
308 | 0 | if( encoding == LIBFVALUE_ENDIAN_BIG ) |
309 | 0 | { |
310 | 0 | byte_stream_copy_to_uint64_big_endian( |
311 | 0 | byte_stream, |
312 | 0 | floating_point->value ); |
313 | 0 | } |
314 | 0 | else if( encoding == LIBFVALUE_ENDIAN_LITTLE ) |
315 | 0 | { |
316 | 0 | byte_stream_copy_to_uint64_little_endian( |
317 | 0 | byte_stream, |
318 | 0 | floating_point->value ); |
319 | 0 | } |
320 | 0 | else |
321 | 0 | { |
322 | 0 | byte_stream_copy_to_uint64_native_endian( |
323 | 0 | byte_stream, |
324 | 0 | floating_point->value ); |
325 | 0 | } |
326 | 0 | break; |
327 | | |
328 | 0 | default: |
329 | 0 | libcerror_error_set( |
330 | 0 | error, |
331 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
332 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
333 | 0 | "%s: unsupported byte stream size: %" PRIzd ".", |
334 | 0 | function, |
335 | 0 | byte_stream_size ); |
336 | |
|
337 | 0 | return( -1 ); |
338 | 0 | } |
339 | 0 | floating_point->value_size = byte_stream_size * 8; |
340 | |
|
341 | 0 | return( 1 ); |
342 | 0 | } |
343 | | |
344 | | /* Copies the floating point from an integer value |
345 | | * Returns 1 if successful or -1 on error |
346 | | */ |
347 | | int libfvalue_floating_point_copy_from_integer( |
348 | | libfvalue_floating_point_t *floating_point, |
349 | | uint64_t integer_value, |
350 | | size_t integer_value_size, |
351 | | libcerror_error_t **error ) |
352 | 0 | { |
353 | 0 | byte_stream_float64_t value_float64; |
354 | |
|
355 | 0 | static char *function = "libfvalue_floating_point_copy_from_integer"; |
356 | |
|
357 | 0 | if( floating_point == NULL ) |
358 | 0 | { |
359 | 0 | libcerror_error_set( |
360 | 0 | error, |
361 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
362 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
363 | 0 | "%s: invalid floating point.", |
364 | 0 | function ); |
365 | |
|
366 | 0 | return( -1 ); |
367 | 0 | } |
368 | 0 | if( ( integer_value_size != 32 ) |
369 | 0 | && ( integer_value_size != 64 ) ) |
370 | 0 | { |
371 | 0 | libcerror_error_set( |
372 | 0 | error, |
373 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
374 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
375 | 0 | "%s: unsupported integer value size.", |
376 | 0 | function ); |
377 | |
|
378 | 0 | return( -1 ); |
379 | 0 | } |
380 | 0 | value_float64.floating_point = (double) integer_value; |
381 | 0 | floating_point->value = value_float64.integer; |
382 | 0 | floating_point->value_size = 64; |
383 | |
|
384 | 0 | return( 1 ); |
385 | 0 | } |
386 | | |
387 | | /* Copies the floating point to an integer value |
388 | | * Returns 1 if successful or -1 on error |
389 | | */ |
390 | | int libfvalue_floating_point_copy_to_integer( |
391 | | libfvalue_floating_point_t *floating_point, |
392 | | uint64_t *integer_value, |
393 | | size_t *integer_value_size, |
394 | | libcerror_error_t **error ) |
395 | 0 | { |
396 | 0 | byte_stream_float64_t value_float64; |
397 | |
|
398 | 0 | static char *function = "libfvalue_floating_point_copy_to_integer"; |
399 | |
|
400 | 0 | if( floating_point == NULL ) |
401 | 0 | { |
402 | 0 | libcerror_error_set( |
403 | 0 | error, |
404 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
405 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
406 | 0 | "%s: invalid floating point.", |
407 | 0 | function ); |
408 | |
|
409 | 0 | return( -1 ); |
410 | 0 | } |
411 | 0 | if( integer_value == NULL ) |
412 | 0 | { |
413 | 0 | libcerror_error_set( |
414 | 0 | error, |
415 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
416 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
417 | 0 | "%s: invalid integer value.", |
418 | 0 | function ); |
419 | |
|
420 | 0 | return( -1 ); |
421 | 0 | } |
422 | 0 | if( integer_value_size == NULL ) |
423 | 0 | { |
424 | 0 | libcerror_error_set( |
425 | 0 | error, |
426 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
427 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
428 | 0 | "%s: invalid integer value size.", |
429 | 0 | function ); |
430 | |
|
431 | 0 | return( -1 ); |
432 | 0 | } |
433 | 0 | value_float64.integer = floating_point->value; |
434 | 0 | *integer_value = (uint64_t) value_float64.floating_point; |
435 | 0 | *integer_value_size = 64; |
436 | |
|
437 | 0 | return( 1 ); |
438 | 0 | } |
439 | | |
440 | | /* Copies the floating point from a floating point value |
441 | | * Returns 1 if successful or -1 on error |
442 | | */ |
443 | | int libfvalue_floating_point_copy_from_floating_point( |
444 | | libfvalue_floating_point_t *floating_point, |
445 | | double floating_point_value, |
446 | | size_t floating_point_value_size, |
447 | | libcerror_error_t **error ) |
448 | 0 | { |
449 | 0 | byte_stream_float64_t value_float64; |
450 | |
|
451 | 0 | static char *function = "libfvalue_floating_point_copy_from_floating_point"; |
452 | |
|
453 | 0 | if( floating_point == NULL ) |
454 | 0 | { |
455 | 0 | libcerror_error_set( |
456 | 0 | error, |
457 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
458 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
459 | 0 | "%s: invalid floating point.", |
460 | 0 | function ); |
461 | |
|
462 | 0 | return( -1 ); |
463 | 0 | } |
464 | 0 | if( ( floating_point_value_size != 32 ) |
465 | 0 | && ( floating_point_value_size != 64 ) ) |
466 | 0 | { |
467 | 0 | libcerror_error_set( |
468 | 0 | error, |
469 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
470 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
471 | 0 | "%s: unsupported floating point value size.", |
472 | 0 | function ); |
473 | |
|
474 | 0 | return( -1 ); |
475 | 0 | } |
476 | 0 | value_float64.floating_point = floating_point_value; |
477 | 0 | floating_point->value = value_float64.integer; |
478 | 0 | floating_point->value_size = 64; |
479 | |
|
480 | 0 | return( 1 ); |
481 | 0 | } |
482 | | |
483 | | /* Copies the floating point to a floating point value |
484 | | * Returns 1 if successful or -1 on error |
485 | | */ |
486 | | int libfvalue_floating_point_copy_to_floating_point( |
487 | | libfvalue_floating_point_t *floating_point, |
488 | | double *floating_point_value, |
489 | | size_t *floating_point_value_size, |
490 | | libcerror_error_t **error ) |
491 | 0 | { |
492 | 0 | byte_stream_float64_t value_float64; |
493 | |
|
494 | 0 | static char *function = "libfvalue_floating_point_copy_to_floating_point"; |
495 | |
|
496 | 0 | if( floating_point == NULL ) |
497 | 0 | { |
498 | 0 | libcerror_error_set( |
499 | 0 | error, |
500 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
501 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
502 | 0 | "%s: invalid floating point.", |
503 | 0 | function ); |
504 | |
|
505 | 0 | return( -1 ); |
506 | 0 | } |
507 | 0 | if( floating_point_value == NULL ) |
508 | 0 | { |
509 | 0 | libcerror_error_set( |
510 | 0 | error, |
511 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
512 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
513 | 0 | "%s: invalid floating point value.", |
514 | 0 | function ); |
515 | |
|
516 | 0 | return( -1 ); |
517 | 0 | } |
518 | 0 | if( floating_point_value_size == NULL ) |
519 | 0 | { |
520 | 0 | libcerror_error_set( |
521 | 0 | error, |
522 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
523 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
524 | 0 | "%s: invalid floating point value size.", |
525 | 0 | function ); |
526 | |
|
527 | 0 | return( -1 ); |
528 | 0 | } |
529 | 0 | value_float64.integer = floating_point->value; |
530 | 0 | *floating_point_value = (double) value_float64.floating_point; |
531 | 0 | *floating_point_value_size = 64; |
532 | |
|
533 | 0 | return( 1 ); |
534 | 0 | } |
535 | | |
536 | | /* Retrieves the size of a string of the floating point |
537 | | * Returns 1 if successful or -1 on error |
538 | | */ |
539 | | int libfvalue_floating_point_get_string_size( |
540 | | libfvalue_floating_point_t *floating_point, |
541 | | size_t *string_size, |
542 | | uint32_t string_format_flags, |
543 | | libcerror_error_t **error ) |
544 | 0 | { |
545 | 0 | static char *function = "libfvalue_floating_point_get_string_size"; |
546 | |
|
547 | 0 | if( floating_point == NULL ) |
548 | 0 | { |
549 | 0 | libcerror_error_set( |
550 | 0 | error, |
551 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
552 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
553 | 0 | "%s: invalid floating point.", |
554 | 0 | function ); |
555 | |
|
556 | 0 | return( -1 ); |
557 | 0 | } |
558 | 0 | if( libfvalue_string_size_from_floating_point( |
559 | 0 | string_size, |
560 | 0 | floating_point->value, |
561 | 0 | floating_point->value_size, |
562 | 0 | string_format_flags, |
563 | 0 | error ) != 1 ) |
564 | 0 | { |
565 | 0 | libcerror_error_set( |
566 | 0 | error, |
567 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
568 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
569 | 0 | "%s: unable to determine size of string of %" PRIzd "-bit floating point.", |
570 | 0 | function, |
571 | 0 | floating_point->value_size ); |
572 | |
|
573 | 0 | return( -1 ); |
574 | 0 | } |
575 | 0 | return( 1 ); |
576 | 0 | } |
577 | | |
578 | | /* Copies the floating point from an UTF-8 encoded string |
579 | | * Returns 1 if successful or -1 on error |
580 | | */ |
581 | | int libfvalue_floating_point_copy_from_utf8_string_with_index( |
582 | | libfvalue_floating_point_t *floating_point, |
583 | | uint8_t *utf8_string, |
584 | | size_t utf8_string_length, |
585 | | size_t *utf8_string_index, |
586 | | uint32_t string_format_flags, |
587 | | libcerror_error_t **error ) |
588 | 0 | { |
589 | 0 | static char *function = "libfvalue_floating_point_copy_from_utf8_string_with_index"; |
590 | |
|
591 | 0 | if( floating_point == NULL ) |
592 | 0 | { |
593 | 0 | libcerror_error_set( |
594 | 0 | error, |
595 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
596 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
597 | 0 | "%s: invalid floating point.", |
598 | 0 | function ); |
599 | |
|
600 | 0 | return( -1 ); |
601 | 0 | } |
602 | 0 | if( libfvalue_utf8_string_with_index_copy_to_floating_point( |
603 | 0 | utf8_string, |
604 | 0 | utf8_string_length, |
605 | 0 | utf8_string_index, |
606 | 0 | &( floating_point->value ), |
607 | 0 | floating_point->value_size, |
608 | 0 | string_format_flags, |
609 | 0 | error ) != 1 ) |
610 | 0 | { |
611 | 0 | libcerror_error_set( |
612 | 0 | error, |
613 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
614 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
615 | 0 | "%s: unable to copy %" PRIzd "-bit floating point from UTF-8 string.", |
616 | 0 | function, |
617 | 0 | floating_point->value_size ); |
618 | |
|
619 | 0 | return( -1 ); |
620 | 0 | } |
621 | 0 | return( 1 ); |
622 | 0 | } |
623 | | |
624 | | /* Copies the floating point to an UTF-8 encoded string |
625 | | * Returns 1 if successful or -1 on error |
626 | | */ |
627 | | int libfvalue_floating_point_copy_to_utf8_string_with_index( |
628 | | libfvalue_floating_point_t *floating_point, |
629 | | uint8_t *utf8_string, |
630 | | size_t utf8_string_size, |
631 | | size_t *utf8_string_index, |
632 | | uint32_t string_format_flags, |
633 | | libcerror_error_t **error ) |
634 | 0 | { |
635 | 0 | static char *function = "libfvalue_floating_point_copy_to_utf8_string_with_index"; |
636 | |
|
637 | 0 | if( floating_point == NULL ) |
638 | 0 | { |
639 | 0 | libcerror_error_set( |
640 | 0 | error, |
641 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
642 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
643 | 0 | "%s: invalid floating point.", |
644 | 0 | function ); |
645 | |
|
646 | 0 | return( -1 ); |
647 | 0 | } |
648 | 0 | if( libfvalue_utf8_string_with_index_copy_from_floating_point( |
649 | 0 | utf8_string, |
650 | 0 | utf8_string_size, |
651 | 0 | utf8_string_index, |
652 | 0 | floating_point->value, |
653 | 0 | floating_point->value_size, |
654 | 0 | string_format_flags, |
655 | 0 | error ) != 1 ) |
656 | 0 | { |
657 | 0 | libcerror_error_set( |
658 | 0 | error, |
659 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
660 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
661 | 0 | "%s: unable to copy %" PRIzd "-bit floating point to UTF-8 string.", |
662 | 0 | function, |
663 | 0 | floating_point->value_size ); |
664 | |
|
665 | 0 | return( -1 ); |
666 | 0 | } |
667 | 0 | return( 1 ); |
668 | 0 | } |
669 | | |
670 | | /* Copies the floating point from an UTF-16 encoded string |
671 | | * Returns 1 if successful or -1 on error |
672 | | */ |
673 | | int libfvalue_floating_point_copy_from_utf16_string_with_index( |
674 | | libfvalue_floating_point_t *floating_point, |
675 | | uint16_t *utf16_string, |
676 | | size_t utf16_string_length, |
677 | | size_t *utf16_string_index, |
678 | | uint32_t string_format_flags, |
679 | | libcerror_error_t **error ) |
680 | 0 | { |
681 | 0 | static char *function = "libfvalue_floating_point_copy_from_utf16_string_with_index"; |
682 | |
|
683 | 0 | if( floating_point == NULL ) |
684 | 0 | { |
685 | 0 | libcerror_error_set( |
686 | 0 | error, |
687 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
688 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
689 | 0 | "%s: invalid floating point.", |
690 | 0 | function ); |
691 | |
|
692 | 0 | return( -1 ); |
693 | 0 | } |
694 | 0 | if( libfvalue_utf16_string_with_index_copy_to_floating_point( |
695 | 0 | utf16_string, |
696 | 0 | utf16_string_length, |
697 | 0 | utf16_string_index, |
698 | 0 | &( floating_point->value ), |
699 | 0 | floating_point->value_size, |
700 | 0 | string_format_flags, |
701 | 0 | error ) != 1 ) |
702 | 0 | { |
703 | 0 | libcerror_error_set( |
704 | 0 | error, |
705 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
706 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
707 | 0 | "%s: unable to copy %" PRIzd "-bit floating point from UTF-16 string.", |
708 | 0 | function, |
709 | 0 | floating_point->value_size ); |
710 | |
|
711 | 0 | return( -1 ); |
712 | 0 | } |
713 | 0 | return( 1 ); |
714 | 0 | } |
715 | | |
716 | | /* Copies the floating point to an UTF-16 encoded string |
717 | | * Returns 1 if successful or -1 on error |
718 | | */ |
719 | | int libfvalue_floating_point_copy_to_utf16_string_with_index( |
720 | | libfvalue_floating_point_t *floating_point, |
721 | | uint16_t *utf16_string, |
722 | | size_t utf16_string_size, |
723 | | size_t *utf16_string_index, |
724 | | uint32_t string_format_flags, |
725 | | libcerror_error_t **error ) |
726 | 0 | { |
727 | 0 | static char *function = "libfvalue_floating_point_copy_to_utf16_string_with_index"; |
728 | |
|
729 | 0 | if( floating_point == NULL ) |
730 | 0 | { |
731 | 0 | libcerror_error_set( |
732 | 0 | error, |
733 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
734 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
735 | 0 | "%s: invalid floating point.", |
736 | 0 | function ); |
737 | |
|
738 | 0 | return( -1 ); |
739 | 0 | } |
740 | 0 | if( libfvalue_utf16_string_with_index_copy_from_floating_point( |
741 | 0 | utf16_string, |
742 | 0 | utf16_string_size, |
743 | 0 | utf16_string_index, |
744 | 0 | floating_point->value, |
745 | 0 | floating_point->value_size, |
746 | 0 | string_format_flags, |
747 | 0 | error ) != 1 ) |
748 | 0 | { |
749 | 0 | libcerror_error_set( |
750 | 0 | error, |
751 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
752 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
753 | 0 | "%s: unable to copy %" PRIzd "-bit floating point to UTF-16 string.", |
754 | 0 | function, |
755 | 0 | floating_point->value_size ); |
756 | |
|
757 | 0 | return( -1 ); |
758 | 0 | } |
759 | 0 | return( 1 ); |
760 | 0 | } |
761 | | |
762 | | /* Copies the floating point from an UTF-32 encoded string |
763 | | * Returns 1 if successful or -1 on error |
764 | | */ |
765 | | int libfvalue_floating_point_copy_from_utf32_string_with_index( |
766 | | libfvalue_floating_point_t *floating_point, |
767 | | uint32_t *utf32_string, |
768 | | size_t utf32_string_length, |
769 | | size_t *utf32_string_index, |
770 | | uint32_t string_format_flags, |
771 | | libcerror_error_t **error ) |
772 | 0 | { |
773 | 0 | static char *function = "libfvalue_floating_point_copy_from_utf32_string_with_index"; |
774 | |
|
775 | 0 | if( floating_point == NULL ) |
776 | 0 | { |
777 | 0 | libcerror_error_set( |
778 | 0 | error, |
779 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
780 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
781 | 0 | "%s: invalid floating point.", |
782 | 0 | function ); |
783 | |
|
784 | 0 | return( -1 ); |
785 | 0 | } |
786 | 0 | if( libfvalue_utf32_string_with_index_copy_to_floating_point( |
787 | 0 | utf32_string, |
788 | 0 | utf32_string_length, |
789 | 0 | utf32_string_index, |
790 | 0 | &( floating_point->value ), |
791 | 0 | floating_point->value_size, |
792 | 0 | string_format_flags, |
793 | 0 | error ) != 1 ) |
794 | 0 | { |
795 | 0 | libcerror_error_set( |
796 | 0 | error, |
797 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
798 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
799 | 0 | "%s: unable to copy %" PRIzd "-bit floating point from UTF-32 string.", |
800 | 0 | function, |
801 | 0 | floating_point->value_size ); |
802 | |
|
803 | 0 | return( -1 ); |
804 | 0 | } |
805 | 0 | return( 1 ); |
806 | 0 | } |
807 | | |
808 | | /* Copies the floating point to an UTF-32 encoded string |
809 | | * Returns 1 if successful or -1 on error |
810 | | */ |
811 | | int libfvalue_floating_point_copy_to_utf32_string_with_index( |
812 | | libfvalue_floating_point_t *floating_point, |
813 | | uint32_t *utf32_string, |
814 | | size_t utf32_string_size, |
815 | | size_t *utf32_string_index, |
816 | | uint32_t string_format_flags, |
817 | | libcerror_error_t **error ) |
818 | 0 | { |
819 | 0 | static char *function = "libfvalue_floating_point_copy_to_utf32_string_with_index"; |
820 | |
|
821 | 0 | if( floating_point == NULL ) |
822 | 0 | { |
823 | 0 | libcerror_error_set( |
824 | 0 | error, |
825 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
826 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
827 | 0 | "%s: invalid floating point.", |
828 | 0 | function ); |
829 | |
|
830 | 0 | return( -1 ); |
831 | 0 | } |
832 | 0 | if( libfvalue_utf32_string_with_index_copy_from_floating_point( |
833 | 0 | utf32_string, |
834 | 0 | utf32_string_size, |
835 | 0 | utf32_string_index, |
836 | 0 | floating_point->value, |
837 | 0 | floating_point->value_size, |
838 | 0 | string_format_flags, |
839 | 0 | error ) != 1 ) |
840 | 0 | { |
841 | 0 | libcerror_error_set( |
842 | 0 | error, |
843 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
844 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
845 | 0 | "%s: unable to copy %" PRIzd "-bit floating point to UTF-32 string.", |
846 | 0 | function, |
847 | 0 | floating_point->value_size ); |
848 | |
|
849 | 0 | return( -1 ); |
850 | 0 | } |
851 | 0 | return( 1 ); |
852 | 0 | } |
853 | | |
854 | | /* Determines the size of a string of a floating point value |
855 | | * The floating_point value size is in bits |
856 | | * Returns 1 if successful or -1 on error |
857 | | */ |
858 | | int libfvalue_string_size_from_floating_point( |
859 | | size_t *string_size, |
860 | | uint64_t floating_point_value, |
861 | | size_t floating_point_value_size, |
862 | | uint32_t string_format_flags, |
863 | | libcerror_error_t **error ) |
864 | 0 | { |
865 | 0 | static char *function = "libfvalue_string_size_from_floating_point"; |
866 | 0 | size_t safe_string_size = 0; |
867 | 0 | uint32_t string_format_type = 0; |
868 | 0 | uint32_t supported_flags = 0; |
869 | 0 | uint8_t is_indeterminate = 0; |
870 | 0 | uint8_t is_infinite = 0; |
871 | 0 | uint8_t is_not_a_number = 0; |
872 | 0 | uint8_t is_signed = 0; |
873 | 0 | int8_t bit_shift = 0; |
874 | |
|
875 | 0 | if( string_size == NULL ) |
876 | 0 | { |
877 | 0 | libcerror_error_set( |
878 | 0 | error, |
879 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
880 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
881 | 0 | "%s: invalid string size.", |
882 | 0 | function ); |
883 | |
|
884 | 0 | return( -1 ); |
885 | 0 | } |
886 | 0 | if( ( floating_point_value_size != 32 ) |
887 | 0 | && ( floating_point_value_size != 64 ) ) |
888 | 0 | { |
889 | 0 | libcerror_error_set( |
890 | 0 | error, |
891 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
892 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
893 | 0 | "%s: unsupported floating point value size.", |
894 | 0 | function ); |
895 | |
|
896 | 0 | return( -1 ); |
897 | 0 | } |
898 | 0 | supported_flags = 0x000000ffUL; |
899 | |
|
900 | 0 | if( ( string_format_flags & ~( supported_flags ) ) != 0 ) |
901 | 0 | { |
902 | 0 | libcerror_error_set( |
903 | 0 | error, |
904 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
905 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
906 | 0 | "%s: unsupported string format flags: 0x%08" PRIx32 ".", |
907 | 0 | function, |
908 | 0 | string_format_flags ); |
909 | |
|
910 | 0 | return( -1 ); |
911 | 0 | } |
912 | 0 | string_format_type = string_format_flags & 0x000000ffUL; |
913 | |
|
914 | 0 | if( ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_DECIMAL ) |
915 | 0 | && ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) ) |
916 | 0 | { |
917 | 0 | libcerror_error_set( |
918 | 0 | error, |
919 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
920 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
921 | 0 | "%s: unsupported string format type.", |
922 | 0 | function ); |
923 | |
|
924 | 0 | return( -1 ); |
925 | 0 | } |
926 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
927 | 0 | { |
928 | 0 | safe_string_size = ( floating_point_value_size >> 2 ) + 3; |
929 | 0 | } |
930 | 0 | else |
931 | 0 | { |
932 | 0 | bit_shift = (uint8_t) ( floating_point_value_size - 1 ); |
933 | 0 | is_signed = (uint8_t) ( floating_point_value >> bit_shift ); |
934 | |
|
935 | 0 | if( is_signed != 0 ) |
936 | 0 | { |
937 | 0 | floating_point_value &= ~( (uint64_t) 1 << bit_shift ); |
938 | 0 | } |
939 | 0 | switch( floating_point_value_size ) |
940 | 0 | { |
941 | 0 | case 32: |
942 | 0 | if( floating_point_value == 0x7f800000UL ) |
943 | 0 | { |
944 | 0 | is_infinite = 1; |
945 | 0 | } |
946 | 0 | else if( ( is_signed != 0 ) |
947 | 0 | && ( floating_point_value == 0x7fc00000UL ) ) |
948 | 0 | { |
949 | 0 | is_indeterminate = 1; |
950 | 0 | } |
951 | 0 | else if( ( floating_point_value >= 0x7f800001UL ) |
952 | 0 | && ( floating_point_value <= 0x7fffffffUL ) ) |
953 | 0 | { |
954 | 0 | is_not_a_number = 1; |
955 | 0 | } |
956 | 0 | break; |
957 | | |
958 | 0 | case 64: |
959 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
960 | | if( floating_point_value == 0x7ff0000000000000UL ) |
961 | | #else |
962 | 0 | if( floating_point_value == 0x7ff0000000000000ULL ) |
963 | 0 | #endif |
964 | 0 | { |
965 | 0 | is_infinite = 1; |
966 | 0 | } |
967 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
968 | | else if( ( is_signed != 0 ) |
969 | | && ( floating_point_value == 0x7ff8000000000000UL ) ) |
970 | | #else |
971 | 0 | else if( ( is_signed != 0 ) |
972 | 0 | && ( floating_point_value == 0x7ff8000000000000ULL ) ) |
973 | 0 | #endif |
974 | 0 | { |
975 | 0 | is_indeterminate = 1; |
976 | 0 | } |
977 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
978 | | else if( ( floating_point_value >= 0x7ff0000000000001UL ) |
979 | | && ( floating_point_value <= 0x7fffffffffffffffUL ) ) |
980 | | #else |
981 | 0 | else if( ( floating_point_value >= 0x7ff0000000000001ULL ) |
982 | 0 | && ( floating_point_value <= 0x7fffffffffffffffULL ) ) |
983 | 0 | #endif |
984 | 0 | { |
985 | 0 | is_not_a_number = 1; |
986 | 0 | } |
987 | 0 | break; |
988 | 0 | } |
989 | 0 | if( is_indeterminate != 0 ) |
990 | 0 | { |
991 | | /* "Ind\x00" */ |
992 | 0 | safe_string_size = 4; |
993 | 0 | } |
994 | 0 | else if( is_infinite != 0 ) |
995 | 0 | { |
996 | | /* "Inf\x00" */ |
997 | 0 | safe_string_size = 4; |
998 | 0 | } |
999 | 0 | else if( is_not_a_number != 0 ) |
1000 | 0 | { |
1001 | | /* "Nan\x00" */ |
1002 | 0 | safe_string_size = 4; |
1003 | 0 | } |
1004 | 0 | else |
1005 | 0 | { |
1006 | | /* "[-]0.000000e[+-]000\x00" */ |
1007 | 0 | if( is_signed != 0 ) |
1008 | 0 | { |
1009 | 0 | safe_string_size = 15; |
1010 | 0 | } |
1011 | 0 | else |
1012 | 0 | { |
1013 | 0 | safe_string_size = 14; |
1014 | 0 | } |
1015 | 0 | } |
1016 | 0 | } |
1017 | 0 | *string_size = safe_string_size; |
1018 | |
|
1019 | 0 | return( 1 ); |
1020 | 0 | } |
1021 | | |
1022 | | /* Copies an UTF-8 encoded string from a floating point value |
1023 | | * The floating_point value size is in bits |
1024 | | * Returns 1 if successful or -1 on error |
1025 | | */ |
1026 | | int libfvalue_utf8_string_copy_from_floating_point( |
1027 | | uint8_t *utf8_string, |
1028 | | size_t utf8_string_size, |
1029 | | uint64_t floating_point_value, |
1030 | | size_t floating_point_value_size, |
1031 | | uint32_t string_format_flags, |
1032 | | libcerror_error_t **error ) |
1033 | 0 | { |
1034 | 0 | static char *function = "libfvalue_utf8_string_copy_from_floating_point"; |
1035 | 0 | size_t utf8_string_index = 0; |
1036 | |
|
1037 | 0 | if( libfvalue_utf8_string_with_index_copy_from_floating_point( |
1038 | 0 | utf8_string, |
1039 | 0 | utf8_string_size, |
1040 | 0 | &utf8_string_index, |
1041 | 0 | floating_point_value, |
1042 | 0 | floating_point_value_size, |
1043 | 0 | string_format_flags, |
1044 | 0 | error ) != 1 ) |
1045 | 0 | { |
1046 | 0 | libcerror_error_set( |
1047 | 0 | error, |
1048 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1049 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
1050 | 0 | "%s: unable to copy floating point value to UTF-8 string.", |
1051 | 0 | function ); |
1052 | |
|
1053 | 0 | return( -1 ); |
1054 | 0 | } |
1055 | 0 | return( 1 ); |
1056 | 0 | } |
1057 | | |
1058 | | /* Copies an UTF-8 encoded string of from floating_point value |
1059 | | * The floating_point value size is in bits |
1060 | | * Returns 1 if successful or -1 on error |
1061 | | */ |
1062 | | int libfvalue_utf8_string_with_index_copy_from_floating_point( |
1063 | | uint8_t *utf8_string, |
1064 | | size_t utf8_string_size, |
1065 | | size_t *utf8_string_index, |
1066 | | uint64_t floating_point_value, |
1067 | | size_t floating_point_value_size, |
1068 | | uint32_t string_format_flags, |
1069 | | libcerror_error_t **error ) |
1070 | 0 | { |
1071 | 0 | byte_stream_float32_t value_float32; |
1072 | 0 | byte_stream_float64_t value_float64; |
1073 | |
|
1074 | 0 | static char *function = "libfvalue_utf8_string_with_index_copy_from_floating_point"; |
1075 | 0 | size_t safe_utf8_string_index = 0; |
1076 | 0 | uint64_t divider = 0; |
1077 | 0 | uint64_t value_fraction = 0; |
1078 | 0 | uint32_t string_format_type = 0; |
1079 | 0 | uint32_t supported_flags = 0; |
1080 | 0 | int16_t exponent10 = 0; |
1081 | 0 | int16_t exponent2 = 0; |
1082 | 0 | uint8_t byte_value = 0; |
1083 | 0 | uint8_t digit_index = 0; |
1084 | 0 | uint8_t exponent_sign = 0; |
1085 | 0 | uint8_t is_indeterminate = 0; |
1086 | 0 | uint8_t is_infinite = 0; |
1087 | 0 | uint8_t is_not_a_number = 0; |
1088 | 0 | uint8_t is_signed = 0; |
1089 | 0 | uint8_t number_of_characters = 0; |
1090 | 0 | int8_t bit_shift = 0; |
1091 | 0 | double exponent_value = 0.0; |
1092 | 0 | double value_float = 0.0; |
1093 | |
|
1094 | 0 | if( utf8_string == NULL ) |
1095 | 0 | { |
1096 | 0 | libcerror_error_set( |
1097 | 0 | error, |
1098 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1099 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1100 | 0 | "%s: invalid UTF-8 string.", |
1101 | 0 | function ); |
1102 | |
|
1103 | 0 | return( -1 ); |
1104 | 0 | } |
1105 | 0 | if( utf8_string_size > (size_t) SSIZE_MAX ) |
1106 | 0 | { |
1107 | 0 | libcerror_error_set( |
1108 | 0 | error, |
1109 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1110 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
1111 | 0 | "%s: invalid UTF-8 string size value exceeds maximum.", |
1112 | 0 | function ); |
1113 | |
|
1114 | 0 | return( -1 ); |
1115 | 0 | } |
1116 | 0 | if( utf8_string_index == NULL ) |
1117 | 0 | { |
1118 | 0 | libcerror_error_set( |
1119 | 0 | error, |
1120 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1121 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1122 | 0 | "%s: invalid UTF-8 string index.", |
1123 | 0 | function ); |
1124 | |
|
1125 | 0 | return( -1 ); |
1126 | 0 | } |
1127 | 0 | if( *utf8_string_index >= utf8_string_size ) |
1128 | 0 | { |
1129 | 0 | libcerror_error_set( |
1130 | 0 | error, |
1131 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1132 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
1133 | 0 | "%s: invalid UTF-8 string index value out of bounds.", |
1134 | 0 | function ); |
1135 | |
|
1136 | 0 | return( -1 ); |
1137 | 0 | } |
1138 | 0 | safe_utf8_string_index = *utf8_string_index; |
1139 | |
|
1140 | 0 | if( ( floating_point_value_size != 32 ) |
1141 | 0 | && ( floating_point_value_size != 64 ) ) |
1142 | 0 | { |
1143 | 0 | libcerror_error_set( |
1144 | 0 | error, |
1145 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1146 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
1147 | 0 | "%s: unsupported floating point value size.", |
1148 | 0 | function ); |
1149 | |
|
1150 | 0 | return( -1 ); |
1151 | 0 | } |
1152 | 0 | supported_flags = 0x000000ffUL; |
1153 | |
|
1154 | 0 | if( ( string_format_flags & ~( supported_flags ) ) != 0 ) |
1155 | 0 | { |
1156 | 0 | libcerror_error_set( |
1157 | 0 | error, |
1158 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1159 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
1160 | 0 | "%s: unsupported string format flags: 0x%08" PRIx32 ".", |
1161 | 0 | function, |
1162 | 0 | string_format_flags ); |
1163 | |
|
1164 | 0 | return( -1 ); |
1165 | 0 | } |
1166 | 0 | string_format_type = string_format_flags & 0x000000ffUL; |
1167 | |
|
1168 | 0 | if( ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_DECIMAL ) |
1169 | 0 | && ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) ) |
1170 | 0 | { |
1171 | 0 | libcerror_error_set( |
1172 | 0 | error, |
1173 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1174 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
1175 | 0 | "%s: unsupported string format type.", |
1176 | 0 | function ); |
1177 | |
|
1178 | 0 | return( -1 ); |
1179 | 0 | } |
1180 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
1181 | 0 | { |
1182 | 0 | number_of_characters = (uint8_t) ( floating_point_value_size >> 2 ) + 3; |
1183 | 0 | } |
1184 | 0 | else |
1185 | 0 | { |
1186 | 0 | bit_shift = (uint8_t) ( floating_point_value_size - 1 ); |
1187 | 0 | is_signed = (uint8_t) ( floating_point_value >> bit_shift ); |
1188 | |
|
1189 | 0 | if( is_signed != 0 ) |
1190 | 0 | { |
1191 | 0 | floating_point_value &= ~( (uint64_t) 1 << bit_shift ); |
1192 | 0 | } |
1193 | 0 | switch( floating_point_value_size ) |
1194 | 0 | { |
1195 | 0 | case 32: |
1196 | 0 | if( floating_point_value == 0x7f800000UL ) |
1197 | 0 | { |
1198 | 0 | is_infinite = 1; |
1199 | 0 | } |
1200 | 0 | else if( ( is_signed != 0 ) |
1201 | 0 | && ( floating_point_value == 0x7fc00000UL ) ) |
1202 | 0 | { |
1203 | 0 | is_indeterminate = 1; |
1204 | 0 | } |
1205 | 0 | else if( ( floating_point_value >= 0x7f800001UL ) |
1206 | 0 | && ( floating_point_value <= 0x7fffffffUL ) ) |
1207 | 0 | { |
1208 | 0 | is_not_a_number = 1; |
1209 | 0 | } |
1210 | 0 | else if( floating_point_value != 0 ) |
1211 | 0 | { |
1212 | 0 | value_float32.integer = (uint32_t) floating_point_value; |
1213 | 0 | value_float = (double) value_float32.floating_point; |
1214 | |
|
1215 | 0 | exponent2 = (int16_t) ( floating_point_value >> 23 ); |
1216 | |
|
1217 | 0 | if( exponent2 == 0 ) |
1218 | 0 | { |
1219 | 0 | exponent2 = -126; |
1220 | 0 | } |
1221 | 0 | else |
1222 | 0 | { |
1223 | 0 | exponent2 -= 127; |
1224 | 0 | } |
1225 | 0 | } |
1226 | 0 | break; |
1227 | | |
1228 | 0 | case 64: |
1229 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
1230 | | if( floating_point_value == 0x7ff0000000000000UL ) |
1231 | | #else |
1232 | 0 | if( floating_point_value == 0x7ff0000000000000ULL ) |
1233 | 0 | #endif |
1234 | 0 | { |
1235 | 0 | is_infinite = 1; |
1236 | 0 | } |
1237 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
1238 | | else if( ( is_signed != 0 ) |
1239 | | && ( floating_point_value == 0x7ff8000000000000UL ) ) |
1240 | | #else |
1241 | 0 | else if( ( is_signed != 0 ) |
1242 | 0 | && ( floating_point_value == 0x7ff8000000000000ULL ) ) |
1243 | 0 | #endif |
1244 | 0 | { |
1245 | 0 | is_indeterminate = 1; |
1246 | 0 | } |
1247 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
1248 | | else if( ( floating_point_value >= 0x7ff0000000000001UL ) |
1249 | | && ( floating_point_value <= 0x7fffffffffffffffUL ) ) |
1250 | | #else |
1251 | 0 | else if( ( floating_point_value >= 0x7ff0000000000001ULL ) |
1252 | 0 | && ( floating_point_value <= 0x7fffffffffffffffULL ) ) |
1253 | 0 | #endif |
1254 | 0 | { |
1255 | 0 | is_not_a_number = 1; |
1256 | 0 | } |
1257 | 0 | else if( floating_point_value != 0 ) |
1258 | 0 | { |
1259 | 0 | value_float64.integer = (uint64_t) floating_point_value; |
1260 | 0 | value_float = (double) value_float64.floating_point; |
1261 | |
|
1262 | 0 | exponent2 = (int16_t) ( floating_point_value >> 52 ); |
1263 | |
|
1264 | 0 | if( exponent2 == 0 ) |
1265 | 0 | { |
1266 | 0 | exponent2 = -1023; |
1267 | 0 | } |
1268 | 0 | else |
1269 | 0 | { |
1270 | 0 | exponent2 -= 1023; |
1271 | 0 | } |
1272 | 0 | } |
1273 | 0 | break; |
1274 | 0 | } |
1275 | 0 | if( is_indeterminate != 0 ) |
1276 | 0 | { |
1277 | | /* "Ind\x00" */ |
1278 | 0 | number_of_characters = 4; |
1279 | 0 | } |
1280 | 0 | else if( is_infinite != 0 ) |
1281 | 0 | { |
1282 | | /* "Inf\x00" */ |
1283 | 0 | number_of_characters = 4; |
1284 | 0 | } |
1285 | 0 | else if( is_not_a_number != 0 ) |
1286 | 0 | { |
1287 | | /* "Nan\x00" */ |
1288 | 0 | number_of_characters = 4; |
1289 | 0 | } |
1290 | 0 | else |
1291 | 0 | { |
1292 | | /* "[-]0.000000e[+-]000\x00" */ |
1293 | 0 | if( is_signed != 0 ) |
1294 | 0 | { |
1295 | 0 | number_of_characters = 15; |
1296 | 0 | } |
1297 | 0 | else |
1298 | 0 | { |
1299 | 0 | number_of_characters = 14; |
1300 | 0 | } |
1301 | 0 | } |
1302 | 0 | } |
1303 | 0 | if( ( number_of_characters > utf8_string_size ) |
1304 | 0 | || ( safe_utf8_string_index > ( utf8_string_size - number_of_characters ) ) ) |
1305 | 0 | { |
1306 | 0 | libcerror_error_set( |
1307 | 0 | error, |
1308 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1309 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL, |
1310 | 0 | "%s: UTF-8 string size too small.", |
1311 | 0 | function ); |
1312 | |
|
1313 | 0 | return( -1 ); |
1314 | 0 | } |
1315 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
1316 | 0 | { |
1317 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) '0'; |
1318 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'x'; |
1319 | |
|
1320 | 0 | bit_shift = (uint8_t) ( floating_point_value_size - 4 ); |
1321 | |
|
1322 | 0 | do |
1323 | 0 | { |
1324 | 0 | byte_value = (uint8_t) ( ( floating_point_value >> bit_shift ) & 0x0f ); |
1325 | |
|
1326 | 0 | if( byte_value <= 9 ) |
1327 | 0 | { |
1328 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) '0' + byte_value; |
1329 | 0 | } |
1330 | 0 | else |
1331 | 0 | { |
1332 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'a' + byte_value - 10; |
1333 | 0 | } |
1334 | 0 | bit_shift -= 4; |
1335 | 0 | } |
1336 | 0 | while( bit_shift >= 0 ); |
1337 | 0 | } |
1338 | 0 | else |
1339 | 0 | { |
1340 | 0 | if( is_indeterminate != 0 ) |
1341 | 0 | { |
1342 | | /* "Ind\x00" */ |
1343 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'I'; |
1344 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'n'; |
1345 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'd'; |
1346 | 0 | } |
1347 | 0 | else if( is_infinite != 0 ) |
1348 | 0 | { |
1349 | | /* "Inf\x00" */ |
1350 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'I'; |
1351 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'n'; |
1352 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'f'; |
1353 | 0 | } |
1354 | 0 | else if( is_not_a_number != 0 ) |
1355 | 0 | { |
1356 | | /* "Nan\x00" */ |
1357 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'N'; |
1358 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'a'; |
1359 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'N'; |
1360 | 0 | } |
1361 | 0 | else |
1362 | 0 | { |
1363 | | /* "[-]0.000000e[+-]000\x00" */ |
1364 | 0 | if( is_signed != 0 ) |
1365 | 0 | { |
1366 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) '-'; |
1367 | 0 | } |
1368 | 0 | if( exponent2 < 0 ) |
1369 | 0 | { |
1370 | 0 | exponent_sign = (uint8_t) '-'; |
1371 | 0 | exponent2 *= -1; |
1372 | 0 | } |
1373 | 0 | else |
1374 | 0 | { |
1375 | 0 | exponent_sign = (uint8_t) '+'; |
1376 | 0 | } |
1377 | 0 | exponent_value = 1.0; |
1378 | 0 | exponent10 = 0; |
1379 | |
|
1380 | 0 | while( exponent2 > 0 ) |
1381 | 0 | { |
1382 | 0 | exponent_value *= 2; |
1383 | 0 | exponent2--; |
1384 | |
|
1385 | 0 | if( exponent_value >= 10.0 ) |
1386 | 0 | { |
1387 | 0 | exponent_value /= 10.0; |
1388 | 0 | exponent10++; |
1389 | |
|
1390 | 0 | if( exponent_sign == (uint8_t) '-' ) |
1391 | 0 | { |
1392 | 0 | value_float *= 10.0; |
1393 | 0 | } |
1394 | 0 | else |
1395 | 0 | { |
1396 | 0 | value_float /= 10.0; |
1397 | 0 | } |
1398 | 0 | } |
1399 | 0 | } |
1400 | 0 | if( value_float != 0.0 ) |
1401 | 0 | { |
1402 | 0 | while( ( value_float < 1.0 ) |
1403 | 0 | || ( value_float >= 10.0 ) ) |
1404 | 0 | { |
1405 | 0 | exponent10++; |
1406 | |
|
1407 | 0 | if( exponent_sign == (uint8_t) '-' ) |
1408 | 0 | { |
1409 | 0 | value_float *= 10; |
1410 | 0 | } |
1411 | 0 | else |
1412 | 0 | { |
1413 | 0 | value_float /= 10; |
1414 | 0 | } |
1415 | 0 | } |
1416 | 0 | } |
1417 | 0 | for( digit_index = 0; |
1418 | 0 | digit_index < 7; |
1419 | 0 | digit_index++ ) |
1420 | 0 | { |
1421 | 0 | value_fraction *= 10; |
1422 | 0 | value_fraction += (uint8_t) value_float; |
1423 | |
|
1424 | 0 | value_float -= (uint8_t) value_float; |
1425 | 0 | value_float *= 10.0; |
1426 | 0 | } |
1427 | 0 | if( value_float >= 5.0 ) |
1428 | 0 | { |
1429 | 0 | value_fraction += 1; |
1430 | 0 | } |
1431 | 0 | divider = 1000000; |
1432 | |
|
1433 | 0 | for( digit_index = 0; |
1434 | 0 | digit_index < 7; |
1435 | 0 | digit_index++ ) |
1436 | 0 | { |
1437 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) '0' + (uint8_t) ( value_fraction / divider ); |
1438 | |
|
1439 | 0 | if( digit_index == 0 ) |
1440 | 0 | { |
1441 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) '.'; |
1442 | 0 | } |
1443 | 0 | value_fraction %= divider; |
1444 | 0 | divider /= 10; |
1445 | 0 | } |
1446 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) 'e'; |
1447 | 0 | utf8_string[ safe_utf8_string_index++ ] = exponent_sign; |
1448 | |
|
1449 | 0 | divider = 100; |
1450 | |
|
1451 | 0 | for( digit_index = 0; |
1452 | 0 | digit_index < 3; |
1453 | 0 | digit_index++ ) |
1454 | 0 | { |
1455 | 0 | utf8_string[ safe_utf8_string_index++ ] = (uint8_t) '0' + (uint8_t) ( exponent10 / divider ); |
1456 | |
|
1457 | 0 | exponent10 %= divider; |
1458 | 0 | divider /= 10; |
1459 | 0 | } |
1460 | 0 | } |
1461 | 0 | } |
1462 | 0 | utf8_string[ safe_utf8_string_index++ ] = 0; |
1463 | |
|
1464 | 0 | *utf8_string_index = safe_utf8_string_index; |
1465 | |
|
1466 | 0 | return( 1 ); |
1467 | 0 | } |
1468 | | |
1469 | | /* Copies an UTF-8 encoded string to a floating point value |
1470 | | * The floating_point value size is in bits |
1471 | | * Returns 1 if successful or -1 on error |
1472 | | */ |
1473 | | int libfvalue_utf8_string_with_index_copy_to_floating_point( |
1474 | | uint8_t *utf8_string, |
1475 | | size_t utf8_string_length, |
1476 | | size_t *utf8_string_index, |
1477 | | uint64_t *floating_point_value, |
1478 | | size_t floating_point_value_size, |
1479 | | uint32_t string_format_flags, |
1480 | | libcerror_error_t **error ) |
1481 | 0 | { |
1482 | 0 | byte_stream_float64_t value_float64; |
1483 | |
|
1484 | 0 | static char *function = "libfvalue_utf8_string_with_index_copy_to_floating_point"; |
1485 | 0 | size_t fraction_index = 0; |
1486 | 0 | size_t maximum_string_index = 0; |
1487 | 0 | size_t safe_utf8_string_index = 0; |
1488 | 0 | uint64_t divider = 0; |
1489 | 0 | uint64_t value_64bit = 0; |
1490 | 0 | uint32_t string_format_type = 0; |
1491 | 0 | uint32_t supported_flags = 0; |
1492 | 0 | uint8_t byte_value = 0; |
1493 | 0 | uint8_t character_value = 0; |
1494 | 0 | int8_t bit_shift = 0; |
1495 | 0 | int8_t sign = 1; |
1496 | 0 | double value_fraction = 0.0; |
1497 | |
|
1498 | 0 | if( utf8_string == NULL ) |
1499 | 0 | { |
1500 | 0 | libcerror_error_set( |
1501 | 0 | error, |
1502 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1503 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1504 | 0 | "%s: invalid UTF-8 string.", |
1505 | 0 | function ); |
1506 | |
|
1507 | 0 | return( -1 ); |
1508 | 0 | } |
1509 | 0 | if( utf8_string_length > (size_t) SSIZE_MAX ) |
1510 | 0 | { |
1511 | 0 | libcerror_error_set( |
1512 | 0 | error, |
1513 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1514 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
1515 | 0 | "%s: invalid UTF-8 string size value exceeds maximum.", |
1516 | 0 | function ); |
1517 | |
|
1518 | 0 | return( -1 ); |
1519 | 0 | } |
1520 | 0 | if( utf8_string_index == NULL ) |
1521 | 0 | { |
1522 | 0 | libcerror_error_set( |
1523 | 0 | error, |
1524 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1525 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1526 | 0 | "%s: invalid UTF-8 string index.", |
1527 | 0 | function ); |
1528 | |
|
1529 | 0 | return( -1 ); |
1530 | 0 | } |
1531 | 0 | if( *utf8_string_index >= utf8_string_length ) |
1532 | 0 | { |
1533 | 0 | libcerror_error_set( |
1534 | 0 | error, |
1535 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1536 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
1537 | 0 | "%s: invalid UTF-8 string index value out of bounds.", |
1538 | 0 | function ); |
1539 | |
|
1540 | 0 | return( -1 ); |
1541 | 0 | } |
1542 | 0 | safe_utf8_string_index = *utf8_string_index; |
1543 | |
|
1544 | 0 | if( floating_point_value == NULL ) |
1545 | 0 | { |
1546 | 0 | libcerror_error_set( |
1547 | 0 | error, |
1548 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1549 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1550 | 0 | "%s: invalid floating point value.", |
1551 | 0 | function ); |
1552 | |
|
1553 | 0 | return( -1 ); |
1554 | 0 | } |
1555 | 0 | if( ( floating_point_value_size != 32 ) |
1556 | 0 | && ( floating_point_value_size != 64 ) ) |
1557 | 0 | { |
1558 | 0 | libcerror_error_set( |
1559 | 0 | error, |
1560 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1561 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
1562 | 0 | "%s: unsupported floating point value size.", |
1563 | 0 | function ); |
1564 | |
|
1565 | 0 | return( -1 ); |
1566 | 0 | } |
1567 | 0 | supported_flags = 0x000000ffUL; |
1568 | |
|
1569 | 0 | if( ( string_format_flags & ~( supported_flags ) ) != 0 ) |
1570 | 0 | { |
1571 | 0 | libcerror_error_set( |
1572 | 0 | error, |
1573 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1574 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
1575 | 0 | "%s: unsupported string format flags: 0x%08" PRIx32 ".", |
1576 | 0 | function, |
1577 | 0 | string_format_flags ); |
1578 | |
|
1579 | 0 | return( -1 ); |
1580 | 0 | } |
1581 | 0 | string_format_type = string_format_flags & 0x000000ffUL; |
1582 | |
|
1583 | 0 | if( ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_DECIMAL ) |
1584 | 0 | && ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) ) |
1585 | 0 | { |
1586 | 0 | libcerror_error_set( |
1587 | 0 | error, |
1588 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1589 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
1590 | 0 | "%s: unsupported string format type.", |
1591 | 0 | function ); |
1592 | |
|
1593 | 0 | return( -1 ); |
1594 | 0 | } |
1595 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
1596 | 0 | { |
1597 | 0 | maximum_string_index = (size_t) ( floating_point_value_size >> 2 ) + 3; |
1598 | 0 | } |
1599 | 0 | else |
1600 | 0 | { |
1601 | | /* The string is at least a single digit with an end of string character |
1602 | | */ |
1603 | 0 | maximum_string_index = 2; |
1604 | |
|
1605 | 0 | bit_shift = (uint8_t) ( floating_point_value_size - 1 ); |
1606 | |
|
1607 | 0 | divider = 1; |
1608 | |
|
1609 | 0 | value_64bit = ~( ( ~( (uint64_t) 1 << bit_shift ) >> bit_shift ) << bit_shift ); |
1610 | |
|
1611 | 0 | while( ( value_64bit / divider ) >= 10 ) |
1612 | 0 | { |
1613 | 0 | divider *= 10; |
1614 | |
|
1615 | 0 | maximum_string_index += 1; |
1616 | 0 | } |
1617 | 0 | } |
1618 | 0 | maximum_string_index += safe_utf8_string_index; |
1619 | |
|
1620 | 0 | if( maximum_string_index > (size_t) SSIZE_MAX ) |
1621 | 0 | { |
1622 | 0 | libcerror_error_set( |
1623 | 0 | error, |
1624 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1625 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM, |
1626 | 0 | "%s: invalid maximum string index value exceeds maximum.", |
1627 | 0 | function ); |
1628 | |
|
1629 | 0 | return( -1 ); |
1630 | 0 | } |
1631 | 0 | value_64bit = 0; |
1632 | |
|
1633 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
1634 | 0 | { |
1635 | 0 | character_value = utf8_string[ safe_utf8_string_index++ ]; |
1636 | |
|
1637 | 0 | if(character_value != (uint8_t) '0' ) |
1638 | 0 | { |
1639 | 0 | libcerror_error_set( |
1640 | 0 | error, |
1641 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1642 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
1643 | 0 | "%s: unsupported character value: 0x%02" PRIx8 " at index: %d.", |
1644 | 0 | function, |
1645 | 0 | character_value, |
1646 | 0 | safe_utf8_string_index ); |
1647 | |
|
1648 | 0 | return( -1 ); |
1649 | 0 | } |
1650 | 0 | character_value = utf8_string[ safe_utf8_string_index++ ]; |
1651 | |
|
1652 | 0 | if( character_value != (uint8_t) 'x' ) |
1653 | 0 | { |
1654 | 0 | libcerror_error_set( |
1655 | 0 | error, |
1656 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1657 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
1658 | 0 | "%s: unsupported character value: 0x%02" PRIx8 " at index: %d.", |
1659 | 0 | function, |
1660 | 0 | character_value, |
1661 | 0 | safe_utf8_string_index ); |
1662 | |
|
1663 | 0 | return( -1 ); |
1664 | 0 | } |
1665 | 0 | while( safe_utf8_string_index < utf8_string_length ) |
1666 | 0 | { |
1667 | 0 | character_value = utf8_string[ safe_utf8_string_index ]; |
1668 | |
|
1669 | 0 | if( character_value == 0 ) |
1670 | 0 | { |
1671 | 0 | break; |
1672 | 0 | } |
1673 | 0 | if( safe_utf8_string_index > (size_t) maximum_string_index ) |
1674 | 0 | { |
1675 | 0 | libcerror_error_set( |
1676 | 0 | error, |
1677 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1678 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
1679 | 0 | "%s: string too large.", |
1680 | 0 | function ); |
1681 | |
|
1682 | 0 | return( -1 ); |
1683 | 0 | } |
1684 | 0 | value_64bit <<= 4; |
1685 | |
|
1686 | 0 | if( ( character_value >= (uint8_t) '0' ) |
1687 | 0 | && ( character_value <= (uint8_t) '9' ) ) |
1688 | 0 | { |
1689 | 0 | byte_value = (uint8_t) ( character_value - (uint8_t) '0' ); |
1690 | 0 | } |
1691 | 0 | else if( ( character_value >= (uint8_t) 'A' ) |
1692 | 0 | && ( character_value <= (uint8_t) 'F' ) ) |
1693 | 0 | { |
1694 | 0 | byte_value = (uint8_t) ( character_value - (uint8_t) 'A' + 10 ); |
1695 | 0 | } |
1696 | 0 | else if( ( character_value >= (uint8_t) 'a' ) |
1697 | 0 | && ( character_value <= (uint8_t) 'f' ) ) |
1698 | 0 | { |
1699 | 0 | byte_value = (uint8_t) ( character_value - (uint8_t) 'a' + 10 ); |
1700 | 0 | } |
1701 | 0 | else |
1702 | 0 | { |
1703 | 0 | libcerror_error_set( |
1704 | 0 | error, |
1705 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1706 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
1707 | 0 | "%s: unsupported character value: 0x%02" PRIx8 " at index: %d.", |
1708 | 0 | function, |
1709 | 0 | character_value, |
1710 | 0 | safe_utf8_string_index ); |
1711 | |
|
1712 | 0 | return( -1 ); |
1713 | 0 | } |
1714 | 0 | value_64bit += byte_value; |
1715 | |
|
1716 | 0 | safe_utf8_string_index++; |
1717 | 0 | } |
1718 | 0 | } |
1719 | 0 | else |
1720 | 0 | { |
1721 | 0 | value_float64.floating_point = 0.0; |
1722 | |
|
1723 | 0 | character_value = utf8_string[ safe_utf8_string_index ]; |
1724 | | |
1725 | | /* In the maximum possible string one character is substituted for the sign |
1726 | | */ |
1727 | 0 | if( character_value == (uint8_t) '-' ) |
1728 | 0 | { |
1729 | 0 | safe_utf8_string_index++; |
1730 | |
|
1731 | 0 | sign = -1; |
1732 | 0 | } |
1733 | 0 | else if( character_value == (uint8_t) '+' ) |
1734 | 0 | { |
1735 | 0 | safe_utf8_string_index++; |
1736 | 0 | } |
1737 | 0 | while( safe_utf8_string_index < utf8_string_length ) |
1738 | 0 | { |
1739 | 0 | character_value = utf8_string[ safe_utf8_string_index ]; |
1740 | |
|
1741 | 0 | if( character_value == 0 ) |
1742 | 0 | { |
1743 | 0 | break; |
1744 | 0 | } |
1745 | 0 | if( safe_utf8_string_index > (size_t) maximum_string_index ) |
1746 | 0 | { |
1747 | 0 | libcerror_error_set( |
1748 | 0 | error, |
1749 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1750 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
1751 | 0 | "%s: string too large.", |
1752 | 0 | function ); |
1753 | |
|
1754 | 0 | return( -1 ); |
1755 | 0 | } |
1756 | 0 | if( character_value == (uint8_t) '.' ) |
1757 | 0 | { |
1758 | 0 | break; |
1759 | 0 | } |
1760 | 0 | if( ( character_value < (uint8_t) '0' ) |
1761 | 0 | || ( character_value > (uint8_t) '9' ) ) |
1762 | 0 | { |
1763 | 0 | libcerror_error_set( |
1764 | 0 | error, |
1765 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1766 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
1767 | 0 | "%s: unsupported character value: 0x%02" PRIx8 " at index: %d.", |
1768 | 0 | function, |
1769 | 0 | character_value, |
1770 | 0 | safe_utf8_string_index ); |
1771 | |
|
1772 | 0 | return( -1 ); |
1773 | 0 | } |
1774 | 0 | value_float64.floating_point *= 10; |
1775 | 0 | value_float64.floating_point += character_value - (uint8_t) '0'; |
1776 | |
|
1777 | 0 | safe_utf8_string_index++; |
1778 | 0 | } |
1779 | 0 | fraction_index = safe_utf8_string_index; |
1780 | |
|
1781 | 0 | safe_utf8_string_index++; |
1782 | 0 | utf8_string_length--; |
1783 | |
|
1784 | 0 | if( utf8_string_length > (size_t) maximum_string_index ) |
1785 | 0 | { |
1786 | 0 | libcerror_error_set( |
1787 | 0 | error, |
1788 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1789 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
1790 | 0 | "%s: string too large.", |
1791 | 0 | function ); |
1792 | |
|
1793 | 0 | return( -1 ); |
1794 | 0 | } |
1795 | 0 | while( fraction_index < utf8_string_length ) |
1796 | 0 | { |
1797 | 0 | character_value = utf8_string[ utf8_string_length ]; |
1798 | |
|
1799 | 0 | if( character_value == 0 ) |
1800 | 0 | { |
1801 | 0 | break; |
1802 | 0 | } |
1803 | 0 | if( ( character_value < (uint8_t) '0' ) |
1804 | 0 | || ( character_value > (uint8_t) '9' ) ) |
1805 | 0 | { |
1806 | 0 | libcerror_error_set( |
1807 | 0 | error, |
1808 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1809 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
1810 | 0 | "%s: unsupported character value: 0x%02" PRIx8 " at index: %d.", |
1811 | 0 | function, |
1812 | 0 | character_value, |
1813 | 0 | utf8_string_length ); |
1814 | |
|
1815 | 0 | return( -1 ); |
1816 | 0 | } |
1817 | 0 | value_fraction /= 10; |
1818 | 0 | value_fraction += character_value - (uint8_t) '0'; |
1819 | |
|
1820 | 0 | safe_utf8_string_index++; |
1821 | 0 | utf8_string_length--; |
1822 | 0 | } |
1823 | 0 | if( value_fraction != 0.0 ) |
1824 | 0 | { |
1825 | 0 | value_float64.floating_point += value_fraction / 10; |
1826 | 0 | } |
1827 | 0 | if( sign == -1 ) |
1828 | 0 | { |
1829 | 0 | value_float64.floating_point *= 1.0; |
1830 | 0 | } |
1831 | 0 | value_64bit = value_float64.integer; |
1832 | 0 | } |
1833 | 0 | *utf8_string_index = safe_utf8_string_index; |
1834 | 0 | *floating_point_value = value_64bit; |
1835 | |
|
1836 | 0 | return( 1 ); |
1837 | 0 | } |
1838 | | |
1839 | | /* Copies an UTF-16 encoded string of a floating point value |
1840 | | * The floating_point value size is in bits |
1841 | | * Returns 1 if successful or -1 on error |
1842 | | */ |
1843 | | int libfvalue_utf16_string_copy_from_floating_point( |
1844 | | uint16_t *utf16_string, |
1845 | | size_t utf16_string_size, |
1846 | | uint64_t floating_point_value, |
1847 | | size_t floating_point_value_size, |
1848 | | uint32_t string_format_flags, |
1849 | | libcerror_error_t **error ) |
1850 | 0 | { |
1851 | 0 | static char *function = "libfvalue_utf16_string_copy_from_floating_point"; |
1852 | 0 | size_t utf16_string_index = 0; |
1853 | |
|
1854 | 0 | if( libfvalue_utf16_string_with_index_copy_from_floating_point( |
1855 | 0 | utf16_string, |
1856 | 0 | utf16_string_size, |
1857 | 0 | &utf16_string_index, |
1858 | 0 | floating_point_value, |
1859 | 0 | floating_point_value_size, |
1860 | 0 | string_format_flags, |
1861 | 0 | error ) != 1 ) |
1862 | 0 | { |
1863 | 0 | libcerror_error_set( |
1864 | 0 | error, |
1865 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1866 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
1867 | 0 | "%s: unable to copy floating point value to UTF-16 string.", |
1868 | 0 | function ); |
1869 | |
|
1870 | 0 | return( -1 ); |
1871 | 0 | } |
1872 | 0 | return( 1 ); |
1873 | 0 | } |
1874 | | |
1875 | | /* Copies an UTF-16 encoded string of from floating_point value |
1876 | | * The floating_point value size is in bits |
1877 | | * Returns 1 if successful or -1 on error |
1878 | | */ |
1879 | | int libfvalue_utf16_string_with_index_copy_from_floating_point( |
1880 | | uint16_t *utf16_string, |
1881 | | size_t utf16_string_size, |
1882 | | size_t *utf16_string_index, |
1883 | | uint64_t floating_point_value, |
1884 | | size_t floating_point_value_size, |
1885 | | uint32_t string_format_flags, |
1886 | | libcerror_error_t **error ) |
1887 | 0 | { |
1888 | 0 | byte_stream_float32_t value_float32; |
1889 | 0 | byte_stream_float64_t value_float64; |
1890 | |
|
1891 | 0 | static char *function = "libfvalue_utf16_string_with_index_copy_from_floating_point"; |
1892 | 0 | size_t safe_utf16_string_index = 0; |
1893 | 0 | uint64_t divider = 0; |
1894 | 0 | uint64_t value_fraction = 0; |
1895 | 0 | uint32_t string_format_type = 0; |
1896 | 0 | uint32_t supported_flags = 0; |
1897 | 0 | int16_t exponent10 = 0; |
1898 | 0 | int16_t exponent2 = 0; |
1899 | 0 | uint8_t byte_value = 0; |
1900 | 0 | uint8_t digit_index = 0; |
1901 | 0 | uint8_t exponent_sign = 0; |
1902 | 0 | uint8_t is_indeterminate = 0; |
1903 | 0 | uint8_t is_infinite = 0; |
1904 | 0 | uint8_t is_not_a_number = 0; |
1905 | 0 | uint8_t is_signed = 0; |
1906 | 0 | uint8_t number_of_characters = 0; |
1907 | 0 | int8_t bit_shift = 0; |
1908 | 0 | double exponent_value = 0.0; |
1909 | 0 | double value_float = 0.0; |
1910 | |
|
1911 | 0 | if( utf16_string == NULL ) |
1912 | 0 | { |
1913 | 0 | libcerror_error_set( |
1914 | 0 | error, |
1915 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1916 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1917 | 0 | "%s: invalid UTF-16 string.", |
1918 | 0 | function ); |
1919 | |
|
1920 | 0 | return( -1 ); |
1921 | 0 | } |
1922 | 0 | if( utf16_string_size > (size_t) SSIZE_MAX ) |
1923 | 0 | { |
1924 | 0 | libcerror_error_set( |
1925 | 0 | error, |
1926 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1927 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
1928 | 0 | "%s: invalid UTF-16 string size value exceeds maximum.", |
1929 | 0 | function ); |
1930 | |
|
1931 | 0 | return( -1 ); |
1932 | 0 | } |
1933 | 0 | if( utf16_string_index == NULL ) |
1934 | 0 | { |
1935 | 0 | libcerror_error_set( |
1936 | 0 | error, |
1937 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1938 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1939 | 0 | "%s: invalid UTF-16 string index.", |
1940 | 0 | function ); |
1941 | |
|
1942 | 0 | return( -1 ); |
1943 | 0 | } |
1944 | 0 | if( *utf16_string_index >= utf16_string_size ) |
1945 | 0 | { |
1946 | 0 | libcerror_error_set( |
1947 | 0 | error, |
1948 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1949 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
1950 | 0 | "%s: invalid UTF-16 string index value out of bounds.", |
1951 | 0 | function ); |
1952 | |
|
1953 | 0 | return( -1 ); |
1954 | 0 | } |
1955 | 0 | safe_utf16_string_index = *utf16_string_index; |
1956 | |
|
1957 | 0 | if( ( floating_point_value_size != 32 ) |
1958 | 0 | && ( floating_point_value_size != 64 ) ) |
1959 | 0 | { |
1960 | 0 | libcerror_error_set( |
1961 | 0 | error, |
1962 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1963 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
1964 | 0 | "%s: unsupported floating point value size.", |
1965 | 0 | function ); |
1966 | |
|
1967 | 0 | return( -1 ); |
1968 | 0 | } |
1969 | 0 | supported_flags = 0x000000ffUL; |
1970 | |
|
1971 | 0 | if( ( string_format_flags & ~( supported_flags ) ) != 0 ) |
1972 | 0 | { |
1973 | 0 | libcerror_error_set( |
1974 | 0 | error, |
1975 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1976 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
1977 | 0 | "%s: unsupported string format flags: 0x%08" PRIx32 ".", |
1978 | 0 | function, |
1979 | 0 | string_format_flags ); |
1980 | |
|
1981 | 0 | return( -1 ); |
1982 | 0 | } |
1983 | 0 | string_format_type = string_format_flags & 0x000000ffUL; |
1984 | |
|
1985 | 0 | if( ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_DECIMAL ) |
1986 | 0 | && ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) ) |
1987 | 0 | { |
1988 | 0 | libcerror_error_set( |
1989 | 0 | error, |
1990 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1991 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
1992 | 0 | "%s: unsupported string format type.", |
1993 | 0 | function ); |
1994 | |
|
1995 | 0 | return( -1 ); |
1996 | 0 | } |
1997 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
1998 | 0 | { |
1999 | 0 | number_of_characters = (uint8_t) ( floating_point_value_size >> 2 ) + 3; |
2000 | 0 | } |
2001 | 0 | else |
2002 | 0 | { |
2003 | 0 | bit_shift = (int8_t) ( floating_point_value_size - 1 ); |
2004 | 0 | is_signed = (uint8_t) ( floating_point_value >> bit_shift ); |
2005 | |
|
2006 | 0 | if( is_signed != 0 ) |
2007 | 0 | { |
2008 | 0 | floating_point_value &= ~( (uint64_t) 1 << bit_shift ); |
2009 | 0 | } |
2010 | 0 | switch( floating_point_value_size ) |
2011 | 0 | { |
2012 | 0 | case 32: |
2013 | 0 | if( floating_point_value == 0x7f800000UL ) |
2014 | 0 | { |
2015 | 0 | is_infinite = 1; |
2016 | 0 | } |
2017 | 0 | else if( ( is_signed != 0 ) |
2018 | 0 | && ( floating_point_value == 0x7fc00000UL ) ) |
2019 | 0 | { |
2020 | 0 | is_indeterminate = 1; |
2021 | 0 | } |
2022 | 0 | else if( ( floating_point_value >= 0x7f800001UL ) |
2023 | 0 | && ( floating_point_value <= 0x7fffffffUL ) ) |
2024 | 0 | { |
2025 | 0 | is_not_a_number = 1; |
2026 | 0 | } |
2027 | 0 | else if( floating_point_value != 0 ) |
2028 | 0 | { |
2029 | 0 | value_float32.integer = (uint32_t) floating_point_value; |
2030 | 0 | value_float = (double) value_float32.floating_point; |
2031 | |
|
2032 | 0 | exponent2 = (int16_t) ( floating_point_value >> 23 ); |
2033 | |
|
2034 | 0 | if( exponent2 == 0 ) |
2035 | 0 | { |
2036 | 0 | exponent2 = -126; |
2037 | 0 | } |
2038 | 0 | else |
2039 | 0 | { |
2040 | 0 | exponent2 -= 127; |
2041 | 0 | } |
2042 | 0 | } |
2043 | 0 | break; |
2044 | | |
2045 | 0 | case 64: |
2046 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
2047 | | if( floating_point_value == 0x7ff0000000000000UL ) |
2048 | | #else |
2049 | 0 | if( floating_point_value == 0x7ff0000000000000ULL ) |
2050 | 0 | #endif |
2051 | 0 | { |
2052 | 0 | is_infinite = 1; |
2053 | 0 | } |
2054 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
2055 | | else if( ( is_signed != 0 ) |
2056 | | && ( floating_point_value == 0x7ff8000000000000UL ) ) |
2057 | | #else |
2058 | 0 | else if( ( is_signed != 0 ) |
2059 | 0 | && ( floating_point_value == 0x7ff8000000000000ULL ) ) |
2060 | 0 | #endif |
2061 | 0 | { |
2062 | 0 | is_indeterminate = 1; |
2063 | 0 | } |
2064 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
2065 | | else if( ( floating_point_value >= 0x7ff0000000000001UL ) |
2066 | | && ( floating_point_value <= 0x7fffffffffffffffUL ) ) |
2067 | | #else |
2068 | 0 | else if( ( floating_point_value >= 0x7ff0000000000001ULL ) |
2069 | 0 | && ( floating_point_value <= 0x7fffffffffffffffULL ) ) |
2070 | 0 | #endif |
2071 | 0 | { |
2072 | 0 | is_not_a_number = 1; |
2073 | 0 | } |
2074 | 0 | else if( floating_point_value != 0 ) |
2075 | 0 | { |
2076 | 0 | value_float64.integer = (uint64_t) floating_point_value; |
2077 | 0 | value_float = (double) value_float64.floating_point; |
2078 | |
|
2079 | 0 | exponent2 = (int16_t) ( floating_point_value >> 52 ); |
2080 | |
|
2081 | 0 | if( exponent2 == 0 ) |
2082 | 0 | { |
2083 | 0 | exponent2 = -1023; |
2084 | 0 | } |
2085 | 0 | else |
2086 | 0 | { |
2087 | 0 | exponent2 -= 1023; |
2088 | 0 | } |
2089 | 0 | } |
2090 | 0 | break; |
2091 | 0 | } |
2092 | 0 | if( is_indeterminate != 0 ) |
2093 | 0 | { |
2094 | | /* "Ind\x00" */ |
2095 | 0 | number_of_characters = 4; |
2096 | 0 | } |
2097 | 0 | else if( is_infinite != 0 ) |
2098 | 0 | { |
2099 | | /* "Inf\x00" */ |
2100 | 0 | number_of_characters = 4; |
2101 | 0 | } |
2102 | 0 | else if( is_not_a_number != 0 ) |
2103 | 0 | { |
2104 | | /* "Nan\x00" */ |
2105 | 0 | number_of_characters = 4; |
2106 | 0 | } |
2107 | 0 | else |
2108 | 0 | { |
2109 | | /* "[-]0.000000e[+-]000\x00" */ |
2110 | 0 | if( is_signed != 0 ) |
2111 | 0 | { |
2112 | 0 | number_of_characters = 15; |
2113 | 0 | } |
2114 | 0 | else |
2115 | 0 | { |
2116 | 0 | number_of_characters = 14; |
2117 | 0 | } |
2118 | 0 | } |
2119 | 0 | } |
2120 | 0 | if( ( number_of_characters > utf16_string_size ) |
2121 | 0 | || ( safe_utf16_string_index > ( utf16_string_size - number_of_characters ) ) ) |
2122 | 0 | { |
2123 | 0 | libcerror_error_set( |
2124 | 0 | error, |
2125 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2126 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL, |
2127 | 0 | "%s: UTF-16 string size too small.", |
2128 | 0 | function ); |
2129 | |
|
2130 | 0 | return( -1 ); |
2131 | 0 | } |
2132 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
2133 | 0 | { |
2134 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) '0'; |
2135 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'x'; |
2136 | |
|
2137 | 0 | bit_shift = (int8_t) ( floating_point_value_size - 4 ); |
2138 | |
|
2139 | 0 | do |
2140 | 0 | { |
2141 | 0 | byte_value = (uint16_t) ( ( floating_point_value >> bit_shift ) & 0x0f ); |
2142 | |
|
2143 | 0 | if( byte_value <= 9 ) |
2144 | 0 | { |
2145 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) '0' + byte_value; |
2146 | 0 | } |
2147 | 0 | else |
2148 | 0 | { |
2149 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'a' + byte_value - 10; |
2150 | 0 | } |
2151 | 0 | bit_shift -= 4; |
2152 | 0 | } |
2153 | 0 | while( bit_shift >= 0 ); |
2154 | 0 | } |
2155 | 0 | else |
2156 | 0 | { |
2157 | 0 | if( is_indeterminate != 0 ) |
2158 | 0 | { |
2159 | | /* "Ind\x00" */ |
2160 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'I'; |
2161 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'n'; |
2162 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'd'; |
2163 | 0 | } |
2164 | 0 | else if( is_infinite != 0 ) |
2165 | 0 | { |
2166 | | /* "Inf\x00" */ |
2167 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'I'; |
2168 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'n'; |
2169 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'f'; |
2170 | 0 | } |
2171 | 0 | else if( is_not_a_number != 0 ) |
2172 | 0 | { |
2173 | | /* "Nan\x00" */ |
2174 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'N'; |
2175 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'a'; |
2176 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'N'; |
2177 | 0 | } |
2178 | 0 | else |
2179 | 0 | { |
2180 | | /* "[-]0.000000e[+-]000\x00" */ |
2181 | 0 | if( is_signed != 0 ) |
2182 | 0 | { |
2183 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) '-'; |
2184 | 0 | } |
2185 | 0 | if( exponent2 < 0 ) |
2186 | 0 | { |
2187 | 0 | exponent_sign = (uint16_t) '-'; |
2188 | 0 | exponent2 *= -1; |
2189 | 0 | } |
2190 | 0 | else |
2191 | 0 | { |
2192 | 0 | exponent_sign = (uint16_t) '+'; |
2193 | 0 | } |
2194 | 0 | exponent_value = 1.0; |
2195 | 0 | exponent10 = 0; |
2196 | |
|
2197 | 0 | while( exponent2 > 0 ) |
2198 | 0 | { |
2199 | 0 | exponent_value *= 2; |
2200 | 0 | exponent2--; |
2201 | |
|
2202 | 0 | if( exponent_value >= 10.0 ) |
2203 | 0 | { |
2204 | 0 | exponent_value /= 10.0; |
2205 | 0 | exponent10++; |
2206 | |
|
2207 | 0 | if( exponent_sign == (uint16_t) '-' ) |
2208 | 0 | { |
2209 | 0 | value_float *= 10.0; |
2210 | 0 | } |
2211 | 0 | else |
2212 | 0 | { |
2213 | 0 | value_float /= 10.0; |
2214 | 0 | } |
2215 | 0 | } |
2216 | 0 | } |
2217 | 0 | if( value_float != 0.0 ) |
2218 | 0 | { |
2219 | 0 | while( ( value_float < 1.0 ) |
2220 | 0 | || ( value_float >= 10.0 ) ) |
2221 | 0 | { |
2222 | 0 | exponent10++; |
2223 | |
|
2224 | 0 | if( exponent_sign == (uint16_t) '-' ) |
2225 | 0 | { |
2226 | 0 | value_float *= 10; |
2227 | 0 | } |
2228 | 0 | else |
2229 | 0 | { |
2230 | 0 | value_float /= 10; |
2231 | 0 | } |
2232 | 0 | } |
2233 | 0 | } |
2234 | 0 | for( digit_index = 0; |
2235 | 0 | digit_index < 7; |
2236 | 0 | digit_index++ ) |
2237 | 0 | { |
2238 | 0 | value_fraction *= 10; |
2239 | 0 | value_fraction += (uint16_t) value_float; |
2240 | |
|
2241 | 0 | value_float -= (uint16_t) value_float; |
2242 | 0 | value_float *= 10.0; |
2243 | 0 | } |
2244 | 0 | if( value_float >= 5.0 ) |
2245 | 0 | { |
2246 | 0 | value_fraction += 1; |
2247 | 0 | } |
2248 | 0 | divider = 1000000; |
2249 | |
|
2250 | 0 | for( digit_index = 0; |
2251 | 0 | digit_index < 7; |
2252 | 0 | digit_index++ ) |
2253 | 0 | { |
2254 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) '0' + (uint16_t) ( value_fraction / divider ); |
2255 | |
|
2256 | 0 | if( digit_index == 0 ) |
2257 | 0 | { |
2258 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) '.'; |
2259 | 0 | } |
2260 | 0 | value_fraction %= divider; |
2261 | 0 | divider /= 10; |
2262 | 0 | } |
2263 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) 'e'; |
2264 | 0 | utf16_string[ safe_utf16_string_index++ ] = exponent_sign; |
2265 | |
|
2266 | 0 | divider = 100; |
2267 | |
|
2268 | 0 | for( digit_index = 0; |
2269 | 0 | digit_index < 3; |
2270 | 0 | digit_index++ ) |
2271 | 0 | { |
2272 | 0 | utf16_string[ safe_utf16_string_index++ ] = (uint16_t) '0' + (uint16_t) ( exponent10 / divider ); |
2273 | |
|
2274 | 0 | exponent10 %= divider; |
2275 | 0 | divider /= 10; |
2276 | 0 | } |
2277 | 0 | } |
2278 | 0 | } |
2279 | 0 | utf16_string[ safe_utf16_string_index++ ] = 0; |
2280 | |
|
2281 | 0 | *utf16_string_index = safe_utf16_string_index; |
2282 | |
|
2283 | 0 | return( 1 ); |
2284 | 0 | } |
2285 | | |
2286 | | /* Copies an UTF-16 encoded string to a floating point value |
2287 | | * The floating_point value size is in bits |
2288 | | * Returns 1 if successful or -1 on error |
2289 | | */ |
2290 | | int libfvalue_utf16_string_with_index_copy_to_floating_point( |
2291 | | uint16_t *utf16_string, |
2292 | | size_t utf16_string_length, |
2293 | | size_t *utf16_string_index, |
2294 | | uint64_t *floating_point_value, |
2295 | | size_t floating_point_value_size, |
2296 | | uint32_t string_format_flags, |
2297 | | libcerror_error_t **error ) |
2298 | 0 | { |
2299 | 0 | byte_stream_float64_t value_float64; |
2300 | |
|
2301 | 0 | static char *function = "libfvalue_utf16_string_with_index_copy_to_floating_point"; |
2302 | 0 | size_t fraction_index = 0; |
2303 | 0 | size_t maximum_string_index = 0; |
2304 | 0 | size_t safe_utf16_string_index = 0; |
2305 | 0 | uint64_t divider = 0; |
2306 | 0 | uint64_t value_64bit = 0; |
2307 | 0 | uint32_t string_format_type = 0; |
2308 | 0 | uint32_t supported_flags = 0; |
2309 | 0 | uint16_t character_value = 0; |
2310 | 0 | uint8_t byte_value = 0; |
2311 | 0 | int8_t bit_shift = 0; |
2312 | 0 | int8_t sign = 1; |
2313 | 0 | double value_fraction = 0.0; |
2314 | |
|
2315 | 0 | if( utf16_string == NULL ) |
2316 | 0 | { |
2317 | 0 | libcerror_error_set( |
2318 | 0 | error, |
2319 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2320 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2321 | 0 | "%s: invalid UTF-16 string.", |
2322 | 0 | function ); |
2323 | |
|
2324 | 0 | return( -1 ); |
2325 | 0 | } |
2326 | 0 | if( utf16_string_length > (size_t) SSIZE_MAX ) |
2327 | 0 | { |
2328 | 0 | libcerror_error_set( |
2329 | 0 | error, |
2330 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2331 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2332 | 0 | "%s: invalid UTF-16 string size value exceeds maximum.", |
2333 | 0 | function ); |
2334 | |
|
2335 | 0 | return( -1 ); |
2336 | 0 | } |
2337 | 0 | if( utf16_string_index == NULL ) |
2338 | 0 | { |
2339 | 0 | libcerror_error_set( |
2340 | 0 | error, |
2341 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2342 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2343 | 0 | "%s: invalid UTF-16 string index.", |
2344 | 0 | function ); |
2345 | |
|
2346 | 0 | return( -1 ); |
2347 | 0 | } |
2348 | 0 | if( *utf16_string_index >= utf16_string_length ) |
2349 | 0 | { |
2350 | 0 | libcerror_error_set( |
2351 | 0 | error, |
2352 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2353 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
2354 | 0 | "%s: invalid UTF-16 string index value out of bounds.", |
2355 | 0 | function ); |
2356 | |
|
2357 | 0 | return( -1 ); |
2358 | 0 | } |
2359 | 0 | safe_utf16_string_index = *utf16_string_index; |
2360 | |
|
2361 | 0 | if( floating_point_value == NULL ) |
2362 | 0 | { |
2363 | 0 | libcerror_error_set( |
2364 | 0 | error, |
2365 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2366 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2367 | 0 | "%s: invalid floating point value.", |
2368 | 0 | function ); |
2369 | |
|
2370 | 0 | return( -1 ); |
2371 | 0 | } |
2372 | 0 | if( ( floating_point_value_size != 32 ) |
2373 | 0 | && ( floating_point_value_size != 64 ) ) |
2374 | 0 | { |
2375 | 0 | libcerror_error_set( |
2376 | 0 | error, |
2377 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2378 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
2379 | 0 | "%s: unsupported floating point value size.", |
2380 | 0 | function ); |
2381 | |
|
2382 | 0 | return( -1 ); |
2383 | 0 | } |
2384 | 0 | supported_flags = 0x000000ffUL; |
2385 | |
|
2386 | 0 | if( ( string_format_flags & ~( supported_flags ) ) != 0 ) |
2387 | 0 | { |
2388 | 0 | libcerror_error_set( |
2389 | 0 | error, |
2390 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2391 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
2392 | 0 | "%s: unsupported string format flags: 0x%08" PRIx32 ".", |
2393 | 0 | function, |
2394 | 0 | string_format_flags ); |
2395 | |
|
2396 | 0 | return( -1 ); |
2397 | 0 | } |
2398 | 0 | string_format_type = string_format_flags & 0x000000ffUL; |
2399 | |
|
2400 | 0 | if( ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_DECIMAL ) |
2401 | 0 | && ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) ) |
2402 | 0 | { |
2403 | 0 | libcerror_error_set( |
2404 | 0 | error, |
2405 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2406 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
2407 | 0 | "%s: unsupported string format type.", |
2408 | 0 | function ); |
2409 | |
|
2410 | 0 | return( -1 ); |
2411 | 0 | } |
2412 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
2413 | 0 | { |
2414 | 0 | maximum_string_index = (size_t) ( floating_point_value_size >> 2 ) + 3; |
2415 | 0 | } |
2416 | 0 | else |
2417 | 0 | { |
2418 | | /* The string is at least a single digit with an end of string character |
2419 | | */ |
2420 | 0 | maximum_string_index = 2; |
2421 | |
|
2422 | 0 | bit_shift = (uint8_t) ( floating_point_value_size - 1 ); |
2423 | |
|
2424 | 0 | divider = 1; |
2425 | |
|
2426 | 0 | value_64bit = ~( ( ~( (uint64_t) 1 << bit_shift ) >> bit_shift ) << bit_shift ); |
2427 | |
|
2428 | 0 | while( ( value_64bit / divider ) >= 10 ) |
2429 | 0 | { |
2430 | 0 | divider *= 10; |
2431 | |
|
2432 | 0 | maximum_string_index += 1; |
2433 | 0 | } |
2434 | 0 | } |
2435 | 0 | maximum_string_index += safe_utf16_string_index; |
2436 | |
|
2437 | 0 | if( maximum_string_index > (size_t) SSIZE_MAX ) |
2438 | 0 | { |
2439 | 0 | libcerror_error_set( |
2440 | 0 | error, |
2441 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2442 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2443 | 0 | "%s: invalid maximum string index value exceeds maximum.", |
2444 | 0 | function ); |
2445 | |
|
2446 | 0 | return( -1 ); |
2447 | 0 | } |
2448 | 0 | value_64bit = 0; |
2449 | |
|
2450 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
2451 | 0 | { |
2452 | 0 | character_value = utf16_string[ safe_utf16_string_index++ ]; |
2453 | |
|
2454 | 0 | if( character_value != (uint16_t) '0' ) |
2455 | 0 | { |
2456 | 0 | libcerror_error_set( |
2457 | 0 | error, |
2458 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2459 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
2460 | 0 | "%s: unsupported character value: 0x%02" PRIx16 " at index: %d.", |
2461 | 0 | function, |
2462 | 0 | character_value, |
2463 | 0 | safe_utf16_string_index ); |
2464 | |
|
2465 | 0 | return( -1 ); |
2466 | 0 | } |
2467 | 0 | character_value = utf16_string[ safe_utf16_string_index++ ]; |
2468 | |
|
2469 | 0 | if( character_value != (uint16_t) 'x' ) |
2470 | 0 | { |
2471 | 0 | libcerror_error_set( |
2472 | 0 | error, |
2473 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2474 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
2475 | 0 | "%s: unsupported character value: 0x%02" PRIx16 " at index: %d.", |
2476 | 0 | function, |
2477 | 0 | character_value, |
2478 | 0 | safe_utf16_string_index ); |
2479 | |
|
2480 | 0 | return( -1 ); |
2481 | 0 | } |
2482 | 0 | while( safe_utf16_string_index < utf16_string_length ) |
2483 | 0 | { |
2484 | 0 | character_value = utf16_string[ safe_utf16_string_index ]; |
2485 | |
|
2486 | 0 | if( character_value == 0 ) |
2487 | 0 | { |
2488 | 0 | break; |
2489 | 0 | } |
2490 | 0 | if( safe_utf16_string_index > (size_t) maximum_string_index ) |
2491 | 0 | { |
2492 | 0 | libcerror_error_set( |
2493 | 0 | error, |
2494 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2495 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
2496 | 0 | "%s: string too large.", |
2497 | 0 | function ); |
2498 | |
|
2499 | 0 | return( -1 ); |
2500 | 0 | } |
2501 | 0 | value_64bit <<= 4; |
2502 | |
|
2503 | 0 | if( ( character_value >= (uint16_t) '0' ) |
2504 | 0 | && ( character_value <= (uint16_t) '9' ) ) |
2505 | 0 | { |
2506 | 0 | byte_value = (uint8_t) ( character_value - (uint16_t) '0' ); |
2507 | 0 | } |
2508 | 0 | else if( ( character_value >= (uint16_t) 'A' ) |
2509 | 0 | && ( character_value <= (uint16_t) 'F' ) ) |
2510 | 0 | { |
2511 | 0 | byte_value = (uint8_t) ( character_value - (uint16_t) 'A' + 10 ); |
2512 | 0 | } |
2513 | 0 | else if( ( character_value >= (uint16_t) 'a' ) |
2514 | 0 | && ( character_value <= (uint16_t) 'f' ) ) |
2515 | 0 | { |
2516 | 0 | byte_value = (uint8_t) ( character_value - (uint16_t) 'a' + 10 ); |
2517 | 0 | } |
2518 | 0 | else |
2519 | 0 | { |
2520 | 0 | libcerror_error_set( |
2521 | 0 | error, |
2522 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2523 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
2524 | 0 | "%s: unsupported character value: 0x04%" PRIx16 " at index: %d.", |
2525 | 0 | function, |
2526 | 0 | character_value, |
2527 | 0 | safe_utf16_string_index ); |
2528 | |
|
2529 | 0 | return( -1 ); |
2530 | 0 | } |
2531 | 0 | value_64bit += byte_value; |
2532 | |
|
2533 | 0 | safe_utf16_string_index++; |
2534 | 0 | } |
2535 | 0 | } |
2536 | 0 | else |
2537 | 0 | { |
2538 | 0 | value_float64.floating_point = 0.0; |
2539 | |
|
2540 | 0 | character_value = utf16_string[ safe_utf16_string_index ]; |
2541 | | |
2542 | | /* In the maximum possible string one character is substituted for the sign |
2543 | | */ |
2544 | 0 | if( character_value == (uint16_t) '-' ) |
2545 | 0 | { |
2546 | 0 | safe_utf16_string_index++; |
2547 | |
|
2548 | 0 | sign = -1; |
2549 | 0 | } |
2550 | 0 | else if( character_value == (uint16_t) '+' ) |
2551 | 0 | { |
2552 | 0 | safe_utf16_string_index++; |
2553 | 0 | } |
2554 | 0 | while( safe_utf16_string_index < utf16_string_length ) |
2555 | 0 | { |
2556 | 0 | character_value = utf16_string[ safe_utf16_string_index ]; |
2557 | |
|
2558 | 0 | if( character_value == 0 ) |
2559 | 0 | { |
2560 | 0 | break; |
2561 | 0 | } |
2562 | 0 | if( safe_utf16_string_index > (size_t) maximum_string_index ) |
2563 | 0 | { |
2564 | 0 | libcerror_error_set( |
2565 | 0 | error, |
2566 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2567 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
2568 | 0 | "%s: string too large.", |
2569 | 0 | function ); |
2570 | |
|
2571 | 0 | return( -1 ); |
2572 | 0 | } |
2573 | 0 | if( character_value == (uint16_t) '.' ) |
2574 | 0 | { |
2575 | 0 | break; |
2576 | 0 | } |
2577 | 0 | if( ( character_value < (uint16_t) '0' ) |
2578 | 0 | || ( character_value > (uint16_t) '9' ) ) |
2579 | 0 | { |
2580 | 0 | libcerror_error_set( |
2581 | 0 | error, |
2582 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2583 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
2584 | 0 | "%s: unsupported character value: 0x%02" PRIx16 " at index: %d.", |
2585 | 0 | function, |
2586 | 0 | character_value, |
2587 | 0 | safe_utf16_string_index ); |
2588 | |
|
2589 | 0 | return( -1 ); |
2590 | 0 | } |
2591 | 0 | value_float64.floating_point *= 10; |
2592 | 0 | value_float64.floating_point += character_value - (uint16_t) '0'; |
2593 | |
|
2594 | 0 | safe_utf16_string_index++; |
2595 | 0 | } |
2596 | 0 | fraction_index = safe_utf16_string_index; |
2597 | |
|
2598 | 0 | safe_utf16_string_index++; |
2599 | 0 | utf16_string_length--; |
2600 | |
|
2601 | 0 | if( utf16_string_length > (size_t) maximum_string_index ) |
2602 | 0 | { |
2603 | 0 | libcerror_error_set( |
2604 | 0 | error, |
2605 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2606 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
2607 | 0 | "%s: string too large.", |
2608 | 0 | function ); |
2609 | |
|
2610 | 0 | return( -1 ); |
2611 | 0 | } |
2612 | 0 | while( fraction_index < utf16_string_length ) |
2613 | 0 | { |
2614 | 0 | character_value = utf16_string[ utf16_string_length ]; |
2615 | |
|
2616 | 0 | if( character_value == 0 ) |
2617 | 0 | { |
2618 | 0 | break; |
2619 | 0 | } |
2620 | 0 | if( ( character_value < (uint16_t) '0' ) |
2621 | 0 | || ( character_value > (uint16_t) '9' ) ) |
2622 | 0 | { |
2623 | 0 | libcerror_error_set( |
2624 | 0 | error, |
2625 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2626 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
2627 | 0 | "%s: unsupported character value: 0x%02" PRIx16 " at index: %d.", |
2628 | 0 | function, |
2629 | 0 | character_value, |
2630 | 0 | utf16_string_length ); |
2631 | |
|
2632 | 0 | return( -1 ); |
2633 | 0 | } |
2634 | 0 | value_fraction /= 10; |
2635 | 0 | value_fraction += character_value - (uint16_t) '0'; |
2636 | |
|
2637 | 0 | safe_utf16_string_index++; |
2638 | 0 | utf16_string_length--; |
2639 | 0 | } |
2640 | 0 | if( value_fraction != 0.0 ) |
2641 | 0 | { |
2642 | 0 | value_float64.floating_point += value_fraction / 10; |
2643 | 0 | } |
2644 | 0 | if( sign == -1 ) |
2645 | 0 | { |
2646 | 0 | value_float64.floating_point *= 1.0; |
2647 | 0 | } |
2648 | 0 | value_64bit = value_float64.integer; |
2649 | 0 | } |
2650 | 0 | *utf16_string_index = safe_utf16_string_index; |
2651 | 0 | *floating_point_value = value_64bit; |
2652 | |
|
2653 | 0 | return( 1 ); |
2654 | 0 | } |
2655 | | |
2656 | | /* Copies an UTF-32 encoded string of a floating point value |
2657 | | * The floating_point value size is in bits |
2658 | | * Returns 1 if successful or -1 on error |
2659 | | */ |
2660 | | int libfvalue_utf32_string_copy_from_floating_point( |
2661 | | uint32_t *utf32_string, |
2662 | | size_t utf32_string_size, |
2663 | | uint64_t floating_point_value, |
2664 | | size_t floating_point_value_size, |
2665 | | uint32_t string_format_flags, |
2666 | | libcerror_error_t **error ) |
2667 | 0 | { |
2668 | 0 | static char *function = "libfvalue_utf32_string_copy_from_floating_point"; |
2669 | 0 | size_t utf32_string_index = 0; |
2670 | |
|
2671 | 0 | if( libfvalue_utf32_string_with_index_copy_from_floating_point( |
2672 | 0 | utf32_string, |
2673 | 0 | utf32_string_size, |
2674 | 0 | &utf32_string_index, |
2675 | 0 | floating_point_value, |
2676 | 0 | floating_point_value_size, |
2677 | 0 | string_format_flags, |
2678 | 0 | error ) != 1 ) |
2679 | 0 | { |
2680 | 0 | libcerror_error_set( |
2681 | 0 | error, |
2682 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2683 | 0 | LIBCERROR_RUNTIME_ERROR_COPY_FAILED, |
2684 | 0 | "%s: unable to copy floating point value to UTF-32 string.", |
2685 | 0 | function ); |
2686 | |
|
2687 | 0 | return( -1 ); |
2688 | 0 | } |
2689 | 0 | return( 1 ); |
2690 | 0 | } |
2691 | | |
2692 | | /* Copies an UTF-32 encoded string of from floating_point value |
2693 | | * The floating_point value size is in bits |
2694 | | * Returns 1 if successful or -1 on error |
2695 | | */ |
2696 | | int libfvalue_utf32_string_with_index_copy_from_floating_point( |
2697 | | uint32_t *utf32_string, |
2698 | | size_t utf32_string_size, |
2699 | | size_t *utf32_string_index, |
2700 | | uint64_t floating_point_value, |
2701 | | size_t floating_point_value_size, |
2702 | | uint32_t string_format_flags, |
2703 | | libcerror_error_t **error ) |
2704 | 0 | { |
2705 | 0 | byte_stream_float32_t value_float32; |
2706 | 0 | byte_stream_float64_t value_float64; |
2707 | |
|
2708 | 0 | static char *function = "libfvalue_utf32_string_with_index_copy_from_floating_point"; |
2709 | 0 | size_t safe_utf32_string_index = 0; |
2710 | 0 | uint64_t divider = 0; |
2711 | 0 | uint64_t value_fraction = 0; |
2712 | 0 | uint32_t string_format_type = 0; |
2713 | 0 | uint32_t supported_flags = 0; |
2714 | 0 | int16_t exponent10 = 0; |
2715 | 0 | int16_t exponent2 = 0; |
2716 | 0 | uint8_t byte_value = 0; |
2717 | 0 | uint8_t digit_index = 0; |
2718 | 0 | uint8_t exponent_sign = 0; |
2719 | 0 | uint8_t is_indeterminate = 0; |
2720 | 0 | uint8_t is_infinite = 0; |
2721 | 0 | uint8_t is_not_a_number = 0; |
2722 | 0 | uint8_t is_signed = 0; |
2723 | 0 | uint8_t number_of_characters = 0; |
2724 | 0 | int8_t bit_shift = 0; |
2725 | 0 | double exponent_value = 0.0; |
2726 | 0 | double value_float = 0.0; |
2727 | |
|
2728 | 0 | if( utf32_string == NULL ) |
2729 | 0 | { |
2730 | 0 | libcerror_error_set( |
2731 | 0 | error, |
2732 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2733 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2734 | 0 | "%s: invalid UTF-32 string.", |
2735 | 0 | function ); |
2736 | |
|
2737 | 0 | return( -1 ); |
2738 | 0 | } |
2739 | 0 | if( utf32_string_size > (size_t) SSIZE_MAX ) |
2740 | 0 | { |
2741 | 0 | libcerror_error_set( |
2742 | 0 | error, |
2743 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2744 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2745 | 0 | "%s: invalid UTF-32 string size value exceeds maximum.", |
2746 | 0 | function ); |
2747 | |
|
2748 | 0 | return( -1 ); |
2749 | 0 | } |
2750 | 0 | if( utf32_string_index == NULL ) |
2751 | 0 | { |
2752 | 0 | libcerror_error_set( |
2753 | 0 | error, |
2754 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2755 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2756 | 0 | "%s: invalid UTF-32 string index.", |
2757 | 0 | function ); |
2758 | |
|
2759 | 0 | return( -1 ); |
2760 | 0 | } |
2761 | 0 | if( *utf32_string_index >= utf32_string_size ) |
2762 | 0 | { |
2763 | 0 | libcerror_error_set( |
2764 | 0 | error, |
2765 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2766 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
2767 | 0 | "%s: invalid UTF-32 string index value out of bounds.", |
2768 | 0 | function ); |
2769 | |
|
2770 | 0 | return( -1 ); |
2771 | 0 | } |
2772 | 0 | safe_utf32_string_index = *utf32_string_index; |
2773 | |
|
2774 | 0 | if( ( floating_point_value_size != 32 ) |
2775 | 0 | && ( floating_point_value_size != 64 ) ) |
2776 | 0 | { |
2777 | 0 | libcerror_error_set( |
2778 | 0 | error, |
2779 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2780 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
2781 | 0 | "%s: unsupported floating point value size.", |
2782 | 0 | function ); |
2783 | |
|
2784 | 0 | return( -1 ); |
2785 | 0 | } |
2786 | 0 | supported_flags = 0x000000ffUL; |
2787 | |
|
2788 | 0 | if( ( string_format_flags & ~( supported_flags ) ) != 0 ) |
2789 | 0 | { |
2790 | 0 | libcerror_error_set( |
2791 | 0 | error, |
2792 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2793 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
2794 | 0 | "%s: unsupported string format flags: 0x%08" PRIx32 ".", |
2795 | 0 | function, |
2796 | 0 | string_format_flags ); |
2797 | |
|
2798 | 0 | return( -1 ); |
2799 | 0 | } |
2800 | 0 | string_format_type = string_format_flags & 0x000000ffUL; |
2801 | |
|
2802 | 0 | if( ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_DECIMAL ) |
2803 | 0 | && ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) ) |
2804 | 0 | { |
2805 | 0 | libcerror_error_set( |
2806 | 0 | error, |
2807 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2808 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
2809 | 0 | "%s: unsupported string format type.", |
2810 | 0 | function ); |
2811 | |
|
2812 | 0 | return( -1 ); |
2813 | 0 | } |
2814 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
2815 | 0 | { |
2816 | 0 | number_of_characters = (uint8_t) ( floating_point_value_size >> 2 ) + 3; |
2817 | 0 | } |
2818 | 0 | else |
2819 | 0 | { |
2820 | 0 | bit_shift = (int8_t) ( floating_point_value_size - 1 ); |
2821 | 0 | is_signed = (uint8_t) ( floating_point_value >> bit_shift ); |
2822 | |
|
2823 | 0 | if( is_signed != 0 ) |
2824 | 0 | { |
2825 | 0 | floating_point_value &= ~( (uint64_t) 1 << bit_shift ); |
2826 | 0 | } |
2827 | 0 | switch( floating_point_value_size ) |
2828 | 0 | { |
2829 | 0 | case 32: |
2830 | 0 | if( floating_point_value == 0x7f800000UL ) |
2831 | 0 | { |
2832 | 0 | is_infinite = 1; |
2833 | 0 | } |
2834 | 0 | else if( ( is_signed != 0 ) |
2835 | 0 | && ( floating_point_value == 0x7fc00000UL ) ) |
2836 | 0 | { |
2837 | 0 | is_indeterminate = 1; |
2838 | 0 | } |
2839 | 0 | else if( ( floating_point_value >= 0x7f800001UL ) |
2840 | 0 | && ( floating_point_value <= 0x7fffffffUL ) ) |
2841 | 0 | { |
2842 | 0 | is_not_a_number = 1; |
2843 | 0 | } |
2844 | 0 | else if( floating_point_value != 0 ) |
2845 | 0 | { |
2846 | 0 | value_float32.integer = (uint32_t) floating_point_value; |
2847 | 0 | value_float = (double) value_float32.floating_point; |
2848 | |
|
2849 | 0 | exponent2 = (int16_t) ( floating_point_value >> 23 ); |
2850 | |
|
2851 | 0 | if( exponent2 == 0 ) |
2852 | 0 | { |
2853 | 0 | exponent2 = -126; |
2854 | 0 | } |
2855 | 0 | else |
2856 | 0 | { |
2857 | 0 | exponent2 -= 127; |
2858 | 0 | } |
2859 | 0 | } |
2860 | 0 | break; |
2861 | | |
2862 | 0 | case 64: |
2863 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
2864 | | if( floating_point_value == 0x7ff0000000000000UL ) |
2865 | | #else |
2866 | 0 | if( floating_point_value == 0x7ff0000000000000ULL ) |
2867 | 0 | #endif |
2868 | 0 | { |
2869 | 0 | is_infinite = 1; |
2870 | 0 | } |
2871 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
2872 | | else if( ( is_signed != 0 ) |
2873 | | && ( floating_point_value == 0x7ff8000000000000UL ) ) |
2874 | | #else |
2875 | 0 | else if( ( is_signed != 0 ) |
2876 | 0 | && ( floating_point_value == 0x7ff8000000000000ULL ) ) |
2877 | 0 | #endif |
2878 | 0 | { |
2879 | 0 | is_indeterminate = 1; |
2880 | 0 | } |
2881 | | #if defined( __BORLANDC__ ) && ( __BORLANDC__ < 0x0560 ) |
2882 | | else if( ( floating_point_value >= 0x7ff0000000000001UL ) |
2883 | | && ( floating_point_value <= 0x7fffffffffffffffUL ) ) |
2884 | | #else |
2885 | 0 | else if( ( floating_point_value >= 0x7ff0000000000001ULL ) |
2886 | 0 | && ( floating_point_value <= 0x7fffffffffffffffULL ) ) |
2887 | 0 | #endif |
2888 | 0 | { |
2889 | 0 | is_not_a_number = 1; |
2890 | 0 | } |
2891 | 0 | else if( floating_point_value != 0 ) |
2892 | 0 | { |
2893 | 0 | value_float64.integer = (uint64_t) floating_point_value; |
2894 | 0 | value_float = (double) value_float64.floating_point; |
2895 | |
|
2896 | 0 | exponent2 = (int16_t) ( floating_point_value >> 52 ); |
2897 | |
|
2898 | 0 | if( exponent2 == 0 ) |
2899 | 0 | { |
2900 | 0 | exponent2 = -1023; |
2901 | 0 | } |
2902 | 0 | else |
2903 | 0 | { |
2904 | 0 | exponent2 -= 1023; |
2905 | 0 | } |
2906 | 0 | } |
2907 | 0 | break; |
2908 | 0 | } |
2909 | 0 | if( is_indeterminate != 0 ) |
2910 | 0 | { |
2911 | | /* "Ind\x00" */ |
2912 | 0 | number_of_characters = 4; |
2913 | 0 | } |
2914 | 0 | else if( is_infinite != 0 ) |
2915 | 0 | { |
2916 | | /* "Inf\x00" */ |
2917 | 0 | number_of_characters = 4; |
2918 | 0 | } |
2919 | 0 | else if( is_not_a_number != 0 ) |
2920 | 0 | { |
2921 | | /* "Nan\x00" */ |
2922 | 0 | number_of_characters = 4; |
2923 | 0 | } |
2924 | 0 | else |
2925 | 0 | { |
2926 | | /* "[-]0.000000e[+-]000\x00" */ |
2927 | 0 | if( is_signed != 0 ) |
2928 | 0 | { |
2929 | 0 | number_of_characters = 15; |
2930 | 0 | } |
2931 | 0 | else |
2932 | 0 | { |
2933 | 0 | number_of_characters = 14; |
2934 | 0 | } |
2935 | 0 | } |
2936 | 0 | } |
2937 | 0 | if( ( number_of_characters > utf32_string_size ) |
2938 | 0 | || ( safe_utf32_string_index > ( utf32_string_size - number_of_characters ) ) ) |
2939 | 0 | { |
2940 | 0 | libcerror_error_set( |
2941 | 0 | error, |
2942 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2943 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_SMALL, |
2944 | 0 | "%s: UTF-32 string size too small.", |
2945 | 0 | function ); |
2946 | |
|
2947 | 0 | return( -1 ); |
2948 | 0 | } |
2949 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
2950 | 0 | { |
2951 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) '0'; |
2952 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'x'; |
2953 | |
|
2954 | 0 | bit_shift = (int8_t) ( floating_point_value_size - 4 ); |
2955 | |
|
2956 | 0 | do |
2957 | 0 | { |
2958 | 0 | byte_value = (uint32_t) ( ( floating_point_value >> bit_shift ) & 0x0f ); |
2959 | |
|
2960 | 0 | if( byte_value <= 9 ) |
2961 | 0 | { |
2962 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) '0' + byte_value; |
2963 | 0 | } |
2964 | 0 | else |
2965 | 0 | { |
2966 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'a' + byte_value - 10; |
2967 | 0 | } |
2968 | 0 | bit_shift -= 4; |
2969 | 0 | } |
2970 | 0 | while( bit_shift >= 0 ); |
2971 | 0 | } |
2972 | 0 | else |
2973 | 0 | { |
2974 | 0 | if( is_indeterminate != 0 ) |
2975 | 0 | { |
2976 | | /* "Ind\x00" */ |
2977 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'I'; |
2978 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'n'; |
2979 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'd'; |
2980 | 0 | } |
2981 | 0 | else if( is_infinite != 0 ) |
2982 | 0 | { |
2983 | | /* "Inf\x00" */ |
2984 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'I'; |
2985 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'n'; |
2986 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'f'; |
2987 | 0 | } |
2988 | 0 | else if( is_not_a_number != 0 ) |
2989 | 0 | { |
2990 | | /* "Nan\x00" */ |
2991 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'N'; |
2992 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'a'; |
2993 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'N'; |
2994 | 0 | } |
2995 | 0 | else |
2996 | 0 | { |
2997 | | /* "[-]0.000000e[+-]000\x00" */ |
2998 | 0 | if( is_signed != 0 ) |
2999 | 0 | { |
3000 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) '-'; |
3001 | 0 | } |
3002 | 0 | if( exponent2 < 0 ) |
3003 | 0 | { |
3004 | 0 | exponent_sign = (uint32_t) '-'; |
3005 | 0 | exponent2 *= -1; |
3006 | 0 | } |
3007 | 0 | else |
3008 | 0 | { |
3009 | 0 | exponent_sign = (uint32_t) '+'; |
3010 | 0 | } |
3011 | 0 | exponent_value = 1.0; |
3012 | 0 | exponent10 = 0; |
3013 | |
|
3014 | 0 | while( exponent2 > 0 ) |
3015 | 0 | { |
3016 | 0 | exponent_value *= 2; |
3017 | 0 | exponent2--; |
3018 | |
|
3019 | 0 | if( exponent_value >= 10.0 ) |
3020 | 0 | { |
3021 | 0 | exponent_value /= 10.0; |
3022 | 0 | exponent10++; |
3023 | |
|
3024 | 0 | if( exponent_sign == (uint32_t) '-' ) |
3025 | 0 | { |
3026 | 0 | value_float *= 10.0; |
3027 | 0 | } |
3028 | 0 | else |
3029 | 0 | { |
3030 | 0 | value_float /= 10.0; |
3031 | 0 | } |
3032 | 0 | } |
3033 | 0 | } |
3034 | 0 | if( value_float != 0.0 ) |
3035 | 0 | { |
3036 | 0 | while( ( value_float < 1.0 ) |
3037 | 0 | || ( value_float >= 10.0 ) ) |
3038 | 0 | { |
3039 | 0 | exponent10++; |
3040 | |
|
3041 | 0 | if( exponent_sign == (uint32_t) '-' ) |
3042 | 0 | { |
3043 | 0 | value_float *= 10; |
3044 | 0 | } |
3045 | 0 | else |
3046 | 0 | { |
3047 | 0 | value_float /= 10; |
3048 | 0 | } |
3049 | 0 | } |
3050 | 0 | } |
3051 | 0 | for( digit_index = 0; |
3052 | 0 | digit_index < 7; |
3053 | 0 | digit_index++ ) |
3054 | 0 | { |
3055 | 0 | value_fraction *= 10; |
3056 | 0 | value_fraction += (uint32_t) value_float; |
3057 | |
|
3058 | 0 | value_float -= (uint32_t) value_float; |
3059 | 0 | value_float *= 10.0; |
3060 | 0 | } |
3061 | 0 | if( value_float >= 5.0 ) |
3062 | 0 | { |
3063 | 0 | value_fraction += 1; |
3064 | 0 | } |
3065 | 0 | divider = 1000000; |
3066 | |
|
3067 | 0 | for( digit_index = 0; |
3068 | 0 | digit_index < 7; |
3069 | 0 | digit_index++ ) |
3070 | 0 | { |
3071 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) '0' + (uint32_t) ( value_fraction / divider ); |
3072 | |
|
3073 | 0 | if( digit_index == 0 ) |
3074 | 0 | { |
3075 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) '.'; |
3076 | 0 | } |
3077 | 0 | value_fraction %= divider; |
3078 | 0 | divider /= 10; |
3079 | 0 | } |
3080 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) 'e'; |
3081 | 0 | utf32_string[ safe_utf32_string_index++ ] = exponent_sign; |
3082 | |
|
3083 | 0 | divider = 100; |
3084 | |
|
3085 | 0 | for( digit_index = 0; |
3086 | 0 | digit_index < 3; |
3087 | 0 | digit_index++ ) |
3088 | 0 | { |
3089 | 0 | utf32_string[ safe_utf32_string_index++ ] = (uint32_t) '0' + (uint32_t) ( exponent10 / divider ); |
3090 | |
|
3091 | 0 | exponent10 %= divider; |
3092 | 0 | divider /= 10; |
3093 | 0 | } |
3094 | 0 | } |
3095 | 0 | } |
3096 | 0 | utf32_string[ safe_utf32_string_index++ ] = 0; |
3097 | |
|
3098 | 0 | *utf32_string_index = safe_utf32_string_index; |
3099 | |
|
3100 | 0 | return( 1 ); |
3101 | 0 | } |
3102 | | |
3103 | | /* Copies an UTF-32 encoded string to a floating point value |
3104 | | * The floating_point value size is in bits |
3105 | | * Returns 1 if successful or -1 on error |
3106 | | */ |
3107 | | int libfvalue_utf32_string_with_index_copy_to_floating_point( |
3108 | | uint32_t *utf32_string, |
3109 | | size_t utf32_string_length, |
3110 | | size_t *utf32_string_index, |
3111 | | uint64_t *floating_point_value, |
3112 | | size_t floating_point_value_size, |
3113 | | uint32_t string_format_flags, |
3114 | | libcerror_error_t **error ) |
3115 | 0 | { |
3116 | 0 | byte_stream_float64_t value_float64; |
3117 | |
|
3118 | 0 | static char *function = "libfvalue_utf32_string_with_index_copy_to_floating_point"; |
3119 | 0 | size_t fraction_index = 0; |
3120 | 0 | size_t maximum_string_index = 0; |
3121 | 0 | size_t safe_utf32_string_index = 0; |
3122 | 0 | uint64_t divider = 0; |
3123 | 0 | uint64_t value_64bit = 0; |
3124 | 0 | uint32_t character_value = 0; |
3125 | 0 | uint32_t string_format_type = 0; |
3126 | 0 | uint32_t supported_flags = 0; |
3127 | 0 | uint8_t byte_value = 0; |
3128 | 0 | int8_t bit_shift = 0; |
3129 | 0 | int8_t sign = 1; |
3130 | 0 | double value_fraction = 0.0; |
3131 | |
|
3132 | 0 | if( utf32_string == NULL ) |
3133 | 0 | { |
3134 | 0 | libcerror_error_set( |
3135 | 0 | error, |
3136 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3137 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3138 | 0 | "%s: invalid UTF-32 string.", |
3139 | 0 | function ); |
3140 | |
|
3141 | 0 | return( -1 ); |
3142 | 0 | } |
3143 | 0 | if( utf32_string_length > (size_t) SSIZE_MAX ) |
3144 | 0 | { |
3145 | 0 | libcerror_error_set( |
3146 | 0 | error, |
3147 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3148 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
3149 | 0 | "%s: invalid UTF-32 string size value exceeds maximum.", |
3150 | 0 | function ); |
3151 | |
|
3152 | 0 | return( -1 ); |
3153 | 0 | } |
3154 | 0 | if( utf32_string_index == NULL ) |
3155 | 0 | { |
3156 | 0 | libcerror_error_set( |
3157 | 0 | error, |
3158 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3159 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3160 | 0 | "%s: invalid UTF-32 string index.", |
3161 | 0 | function ); |
3162 | |
|
3163 | 0 | return( -1 ); |
3164 | 0 | } |
3165 | 0 | if( *utf32_string_index >= utf32_string_length ) |
3166 | 0 | { |
3167 | 0 | libcerror_error_set( |
3168 | 0 | error, |
3169 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3170 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
3171 | 0 | "%s: invalid UTF-32 string index value out of bounds.", |
3172 | 0 | function ); |
3173 | |
|
3174 | 0 | return( -1 ); |
3175 | 0 | } |
3176 | 0 | safe_utf32_string_index = *utf32_string_index; |
3177 | |
|
3178 | 0 | if( floating_point_value == NULL ) |
3179 | 0 | { |
3180 | 0 | libcerror_error_set( |
3181 | 0 | error, |
3182 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3183 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3184 | 0 | "%s: invalid floating point value.", |
3185 | 0 | function ); |
3186 | |
|
3187 | 0 | return( -1 ); |
3188 | 0 | } |
3189 | 0 | if( ( floating_point_value_size != 32 ) |
3190 | 0 | && ( floating_point_value_size != 64 ) ) |
3191 | 0 | { |
3192 | 0 | libcerror_error_set( |
3193 | 0 | error, |
3194 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3195 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
3196 | 0 | "%s: unsupported floating point value size.", |
3197 | 0 | function ); |
3198 | |
|
3199 | 0 | return( -1 ); |
3200 | 0 | } |
3201 | 0 | supported_flags = 0x000000ffUL; |
3202 | |
|
3203 | 0 | if( ( string_format_flags & ~( supported_flags ) ) != 0 ) |
3204 | 0 | { |
3205 | 0 | libcerror_error_set( |
3206 | 0 | error, |
3207 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3208 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
3209 | 0 | "%s: unsupported string format flags: 0x%08" PRIx32 ".", |
3210 | 0 | function, |
3211 | 0 | string_format_flags ); |
3212 | |
|
3213 | 0 | return( -1 ); |
3214 | 0 | } |
3215 | 0 | string_format_type = string_format_flags & 0x000000ffUL; |
3216 | |
|
3217 | 0 | if( ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_DECIMAL ) |
3218 | 0 | && ( string_format_type != LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) ) |
3219 | 0 | { |
3220 | 0 | libcerror_error_set( |
3221 | 0 | error, |
3222 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3223 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
3224 | 0 | "%s: unsupported string format type.", |
3225 | 0 | function ); |
3226 | |
|
3227 | 0 | return( -1 ); |
3228 | 0 | } |
3229 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
3230 | 0 | { |
3231 | 0 | maximum_string_index = (size_t) ( floating_point_value_size >> 2 ) + 3; |
3232 | 0 | } |
3233 | 0 | else |
3234 | 0 | { |
3235 | | /* The string is at least a single digit with an end of string character |
3236 | | */ |
3237 | 0 | maximum_string_index = 2; |
3238 | |
|
3239 | 0 | bit_shift = (uint8_t) ( floating_point_value_size - 1 ); |
3240 | |
|
3241 | 0 | divider = 1; |
3242 | |
|
3243 | 0 | value_64bit = ~( ( ~( (uint64_t) 1 << bit_shift ) >> bit_shift ) << bit_shift ); |
3244 | |
|
3245 | 0 | while( ( value_64bit / divider ) >= 10 ) |
3246 | 0 | { |
3247 | 0 | divider *= 10; |
3248 | |
|
3249 | 0 | maximum_string_index += 1; |
3250 | 0 | } |
3251 | 0 | } |
3252 | 0 | maximum_string_index += safe_utf32_string_index; |
3253 | |
|
3254 | 0 | if( maximum_string_index > (size_t) SSIZE_MAX ) |
3255 | 0 | { |
3256 | 0 | libcerror_error_set( |
3257 | 0 | error, |
3258 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3259 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_EXCEEDS_MAXIMUM, |
3260 | 0 | "%s: invalid maximum string index value exceeds maximum.", |
3261 | 0 | function ); |
3262 | |
|
3263 | 0 | return( -1 ); |
3264 | 0 | } |
3265 | 0 | value_64bit = 0; |
3266 | |
|
3267 | 0 | if( string_format_type == LIBFVALUE_FLOATING_POINT_FORMAT_TYPE_HEXADECIMAL ) |
3268 | 0 | { |
3269 | 0 | character_value = utf32_string[ safe_utf32_string_index++ ]; |
3270 | |
|
3271 | 0 | if(character_value != (uint32_t) '0' ) |
3272 | 0 | { |
3273 | 0 | libcerror_error_set( |
3274 | 0 | error, |
3275 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3276 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
3277 | 0 | "%s: unsupported character value: 0x%02" PRIx32 " at index: %d.", |
3278 | 0 | function, |
3279 | 0 | character_value, |
3280 | 0 | safe_utf32_string_index ); |
3281 | |
|
3282 | 0 | return( -1 ); |
3283 | 0 | } |
3284 | 0 | character_value = utf32_string[ safe_utf32_string_index++ ]; |
3285 | |
|
3286 | 0 | if( character_value != (uint32_t) 'x' ) |
3287 | 0 | { |
3288 | 0 | libcerror_error_set( |
3289 | 0 | error, |
3290 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3291 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
3292 | 0 | "%s: unsupported character value: 0x%02" PRIx32 " at index: %d.", |
3293 | 0 | function, |
3294 | 0 | character_value, |
3295 | 0 | safe_utf32_string_index ); |
3296 | |
|
3297 | 0 | return( -1 ); |
3298 | 0 | } |
3299 | 0 | while( safe_utf32_string_index < utf32_string_length ) |
3300 | 0 | { |
3301 | 0 | character_value = utf32_string[ safe_utf32_string_index ]; |
3302 | |
|
3303 | 0 | if( character_value == 0 ) |
3304 | 0 | { |
3305 | 0 | break; |
3306 | 0 | } |
3307 | 0 | if( safe_utf32_string_index > (size_t) maximum_string_index ) |
3308 | 0 | { |
3309 | 0 | libcerror_error_set( |
3310 | 0 | error, |
3311 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3312 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
3313 | 0 | "%s: string too large.", |
3314 | 0 | function ); |
3315 | |
|
3316 | 0 | return( -1 ); |
3317 | 0 | } |
3318 | 0 | value_64bit <<= 4; |
3319 | |
|
3320 | 0 | if( ( character_value >= (uint32_t) '0' ) |
3321 | 0 | && ( character_value <= (uint32_t) '9' ) ) |
3322 | 0 | { |
3323 | 0 | byte_value = (uint8_t) ( character_value - (uint32_t) '0' ); |
3324 | 0 | } |
3325 | 0 | else if( ( character_value >= (uint32_t) 'A' ) |
3326 | 0 | && ( character_value <= (uint32_t) 'F' ) ) |
3327 | 0 | { |
3328 | 0 | byte_value = (uint8_t) ( character_value - (uint32_t) 'A' + 10 ); |
3329 | 0 | } |
3330 | 0 | else if( ( character_value >= (uint32_t) 'a' ) |
3331 | 0 | && ( character_value <= (uint32_t) 'f' ) ) |
3332 | 0 | { |
3333 | 0 | byte_value = (uint8_t) ( character_value - (uint32_t) 'a' + 10 ); |
3334 | 0 | } |
3335 | 0 | else |
3336 | 0 | { |
3337 | 0 | libcerror_error_set( |
3338 | 0 | error, |
3339 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3340 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
3341 | 0 | "%s: unsupported character value: 0x08%" PRIx32 " at index: %d.", |
3342 | 0 | function, |
3343 | 0 | character_value, |
3344 | 0 | safe_utf32_string_index ); |
3345 | |
|
3346 | 0 | return( -1 ); |
3347 | 0 | } |
3348 | 0 | value_64bit += byte_value; |
3349 | |
|
3350 | 0 | safe_utf32_string_index++; |
3351 | 0 | } |
3352 | 0 | } |
3353 | 0 | else |
3354 | 0 | { |
3355 | 0 | value_float64.floating_point = 0.0; |
3356 | |
|
3357 | 0 | character_value = utf32_string[ safe_utf32_string_index ]; |
3358 | | |
3359 | | /* In the maximum possible string one character is substituted for the sign |
3360 | | */ |
3361 | 0 | if( character_value == (uint32_t) '-' ) |
3362 | 0 | { |
3363 | 0 | safe_utf32_string_index++; |
3364 | |
|
3365 | 0 | sign = -1; |
3366 | 0 | } |
3367 | 0 | else if( character_value == (uint32_t) '+' ) |
3368 | 0 | { |
3369 | 0 | safe_utf32_string_index++; |
3370 | 0 | } |
3371 | 0 | while( safe_utf32_string_index < utf32_string_length ) |
3372 | 0 | { |
3373 | 0 | character_value = utf32_string[ safe_utf32_string_index ]; |
3374 | |
|
3375 | 0 | if( character_value == 0 ) |
3376 | 0 | { |
3377 | 0 | break; |
3378 | 0 | } |
3379 | 0 | if( safe_utf32_string_index > (size_t) maximum_string_index ) |
3380 | 0 | { |
3381 | 0 | libcerror_error_set( |
3382 | 0 | error, |
3383 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3384 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
3385 | 0 | "%s: string too large.", |
3386 | 0 | function ); |
3387 | |
|
3388 | 0 | return( -1 ); |
3389 | 0 | } |
3390 | 0 | if( character_value == (uint32_t) '.' ) |
3391 | 0 | { |
3392 | 0 | break; |
3393 | 0 | } |
3394 | 0 | if( ( character_value < (uint32_t) '0' ) |
3395 | 0 | || ( character_value > (uint32_t) '9' ) ) |
3396 | 0 | { |
3397 | 0 | libcerror_error_set( |
3398 | 0 | error, |
3399 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3400 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
3401 | 0 | "%s: unsupported character value: 0x%02" PRIx32 " at index: %d.", |
3402 | 0 | function, |
3403 | 0 | character_value, |
3404 | 0 | safe_utf32_string_index ); |
3405 | |
|
3406 | 0 | return( -1 ); |
3407 | 0 | } |
3408 | 0 | value_float64.floating_point *= 10; |
3409 | 0 | value_float64.floating_point += character_value - (uint32_t) '0'; |
3410 | |
|
3411 | 0 | safe_utf32_string_index++; |
3412 | 0 | } |
3413 | 0 | fraction_index = safe_utf32_string_index; |
3414 | |
|
3415 | 0 | safe_utf32_string_index++; |
3416 | 0 | utf32_string_length--; |
3417 | |
|
3418 | 0 | if( utf32_string_length > (size_t) maximum_string_index ) |
3419 | 0 | { |
3420 | 0 | libcerror_error_set( |
3421 | 0 | error, |
3422 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3423 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_TOO_LARGE, |
3424 | 0 | "%s: string too large.", |
3425 | 0 | function ); |
3426 | |
|
3427 | 0 | return( -1 ); |
3428 | 0 | } |
3429 | 0 | while( fraction_index < utf32_string_length ) |
3430 | 0 | { |
3431 | 0 | character_value = utf32_string[ utf32_string_length ]; |
3432 | |
|
3433 | 0 | if( character_value == 0 ) |
3434 | 0 | { |
3435 | 0 | break; |
3436 | 0 | } |
3437 | 0 | if( ( character_value < (uint32_t) '0' ) |
3438 | 0 | || ( character_value > (uint32_t) '9' ) ) |
3439 | 0 | { |
3440 | 0 | libcerror_error_set( |
3441 | 0 | error, |
3442 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3443 | 0 | LIBCERROR_RUNTIME_ERROR_UNSUPPORTED_VALUE, |
3444 | 0 | "%s: unsupported character value: 0x%02" PRIx32 " at index: %d.", |
3445 | 0 | function, |
3446 | 0 | character_value, |
3447 | 0 | utf32_string_length ); |
3448 | |
|
3449 | 0 | return( -1 ); |
3450 | 0 | } |
3451 | 0 | value_fraction /= 10; |
3452 | 0 | value_fraction += character_value - (uint32_t) '0'; |
3453 | |
|
3454 | 0 | safe_utf32_string_index++; |
3455 | 0 | utf32_string_length--; |
3456 | 0 | } |
3457 | 0 | if( value_fraction != 0.0 ) |
3458 | 0 | { |
3459 | 0 | value_float64.floating_point += value_fraction / 10; |
3460 | 0 | } |
3461 | 0 | if( sign == -1 ) |
3462 | 0 | { |
3463 | 0 | value_float64.floating_point *= 1.0; |
3464 | 0 | } |
3465 | 0 | value_64bit = value_float64.integer; |
3466 | 0 | } |
3467 | 0 | *utf32_string_index = safe_utf32_string_index; |
3468 | 0 | *floating_point_value = value_64bit; |
3469 | |
|
3470 | 0 | return( 1 ); |
3471 | 0 | } |
3472 | | |