/src/libbde/libcfile/libcfile_file.c
Line | Count | Source (jump to first uncovered line) |
1 | | /* |
2 | | * File functions |
3 | | * |
4 | | * Copyright (C) 2008-2024, Joachim Metz <joachim.metz@gmail.com> |
5 | | * |
6 | | * Refer to AUTHORS for acknowledgements. |
7 | | * |
8 | | * This program is free software: you can redistribute it and/or modify |
9 | | * it under the terms of the GNU Lesser General Public License as published by |
10 | | * the Free Software Foundation, either version 3 of the License, or |
11 | | * (at your option) any later version. |
12 | | * |
13 | | * This program is distributed in the hope that it will be useful, |
14 | | * but WITHOUT ANY WARRANTY; without even the implied warranty of |
15 | | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the |
16 | | * GNU General Public License for more details. |
17 | | * |
18 | | * You should have received a copy of the GNU Lesser General Public License |
19 | | * along with this program. If not, see <https://www.gnu.org/licenses/>. |
20 | | */ |
21 | | |
22 | | #include <common.h> |
23 | | #include <memory.h> |
24 | | #include <narrow_string.h> |
25 | | #include <system_string.h> |
26 | | #include <types.h> |
27 | | #include <wide_string.h> |
28 | | |
29 | | #if defined( HAVE_SYS_STAT_H ) |
30 | | #include <sys/stat.h> |
31 | | #endif |
32 | | |
33 | | #if defined( HAVE_ERRNO_H ) |
34 | | #include <errno.h> |
35 | | #endif |
36 | | |
37 | | #if defined( HAVE_FCNTL_H ) |
38 | | #include <fcntl.h> |
39 | | #endif |
40 | | |
41 | | #if defined( WINAPI ) |
42 | | #include <io.h> |
43 | | #endif |
44 | | |
45 | | #if defined( WINAPI ) && !defined( __CYGWIN__ ) |
46 | | #include <share.h> |
47 | | #endif |
48 | | |
49 | | #if defined( HAVE_SYS_IOCTL_H ) |
50 | | #include <sys/ioctl.h> |
51 | | #endif |
52 | | |
53 | | #if defined( WINAPI ) |
54 | | #include <winioctl.h> |
55 | | |
56 | | #elif defined( HAVE_CYGWIN_FS_H ) |
57 | | #include <cygwin/fs.h> |
58 | | |
59 | | #elif defined( HAVE_LINUX_FS_H ) |
60 | | /* Required for Linux platforms that use a sizeof( u64 ) |
61 | | * in linux/fs.h but have no typedef of it |
62 | | */ |
63 | | #if !defined( HAVE_U64 ) |
64 | | typedef size_t u64; |
65 | | #endif |
66 | | |
67 | | #include <linux/fs.h> |
68 | | |
69 | | #else |
70 | | |
71 | | #if defined( HAVE_SYS_DISK_H ) |
72 | | #include <sys/disk.h> |
73 | | #endif |
74 | | |
75 | | #if defined( HAVE_SYS_DISKLABEL_H ) |
76 | | #include <sys/disklabel.h> |
77 | | #endif |
78 | | |
79 | | #endif |
80 | | |
81 | | #if defined( HAVE_UNISTD_H ) |
82 | | #include <unistd.h> |
83 | | #endif |
84 | | |
85 | | #if defined( HAVE_GLIB_H ) |
86 | | #include <glib.h> |
87 | | #include <glib/gstdio.h> |
88 | | #endif |
89 | | |
90 | | #include "libcfile_definitions.h" |
91 | | #include "libcfile_file.h" |
92 | | #include "libcfile_libcerror.h" |
93 | | #include "libcfile_libcnotify.h" |
94 | | #include "libcfile_system_string.h" |
95 | | #include "libcfile_types.h" |
96 | | #include "libcfile_winapi.h" |
97 | | |
98 | | /* Creates a file |
99 | | * Make sure the value file is referencing, is set to NULL |
100 | | * Returns 1 if successful or -1 on error |
101 | | */ |
102 | | int libcfile_file_initialize( |
103 | | libcfile_file_t **file, |
104 | | libcerror_error_t **error ) |
105 | 0 | { |
106 | 0 | libcfile_internal_file_t *internal_file = NULL; |
107 | 0 | static char *function = "libcfile_file_initialize"; |
108 | |
|
109 | 0 | if( file == NULL ) |
110 | 0 | { |
111 | 0 | libcerror_error_set( |
112 | 0 | error, |
113 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
114 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
115 | 0 | "%s: invalid file.", |
116 | 0 | function ); |
117 | |
|
118 | 0 | return( -1 ); |
119 | 0 | } |
120 | 0 | if( *file != NULL ) |
121 | 0 | { |
122 | 0 | libcerror_error_set( |
123 | 0 | error, |
124 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
125 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET, |
126 | 0 | "%s: invalid file value already set.", |
127 | 0 | function ); |
128 | |
|
129 | 0 | return( -1 ); |
130 | 0 | } |
131 | 0 | internal_file = memory_allocate_structure( |
132 | 0 | libcfile_internal_file_t ); |
133 | |
|
134 | 0 | if( internal_file == NULL ) |
135 | 0 | { |
136 | 0 | libcerror_error_set( |
137 | 0 | error, |
138 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
139 | 0 | LIBCERROR_MEMORY_ERROR_INSUFFICIENT, |
140 | 0 | "%s: unable to create file.", |
141 | 0 | function ); |
142 | |
|
143 | 0 | goto on_error; |
144 | 0 | } |
145 | 0 | if( memory_set( |
146 | 0 | internal_file, |
147 | 0 | 0, |
148 | 0 | sizeof( libcfile_internal_file_t ) ) == NULL ) |
149 | 0 | { |
150 | 0 | libcerror_error_set( |
151 | 0 | error, |
152 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
153 | 0 | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
154 | 0 | "%s: unable to clear file.", |
155 | 0 | function ); |
156 | |
|
157 | 0 | goto on_error; |
158 | 0 | } |
159 | | #if defined( WINAPI ) |
160 | | internal_file->handle = INVALID_HANDLE_VALUE; |
161 | | #else |
162 | 0 | internal_file->descriptor = -1; |
163 | 0 | #endif |
164 | 0 | *file = (libcfile_file_t *) internal_file; |
165 | |
|
166 | 0 | return( 1 ); |
167 | | |
168 | 0 | on_error: |
169 | 0 | if( internal_file != NULL ) |
170 | 0 | { |
171 | 0 | memory_free( |
172 | 0 | internal_file ); |
173 | 0 | } |
174 | 0 | return( -1 ); |
175 | 0 | } |
176 | | |
177 | | /* Frees a file |
178 | | * Returns 1 if successful or -1 on error |
179 | | */ |
180 | | int libcfile_file_free( |
181 | | libcfile_file_t **file, |
182 | | libcerror_error_t **error ) |
183 | 0 | { |
184 | 0 | libcfile_internal_file_t *internal_file = NULL; |
185 | 0 | static char *function = "libcfile_file_free"; |
186 | 0 | int result = 1; |
187 | |
|
188 | 0 | if( file == NULL ) |
189 | 0 | { |
190 | 0 | libcerror_error_set( |
191 | 0 | error, |
192 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
193 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
194 | 0 | "%s: invalid file.", |
195 | 0 | function ); |
196 | |
|
197 | 0 | return( -1 ); |
198 | 0 | } |
199 | 0 | if( *file != NULL ) |
200 | 0 | { |
201 | 0 | internal_file = (libcfile_internal_file_t *) *file; |
202 | |
|
203 | | #if defined( WINAPI ) |
204 | | if( internal_file->handle != INVALID_HANDLE_VALUE ) |
205 | | #else |
206 | 0 | if( internal_file->descriptor != -1 ) |
207 | 0 | #endif |
208 | 0 | { |
209 | 0 | if( libcfile_file_close( |
210 | 0 | *file, |
211 | 0 | error ) != 0 ) |
212 | 0 | { |
213 | 0 | libcerror_error_set( |
214 | 0 | error, |
215 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
216 | 0 | LIBCERROR_IO_ERROR_CLOSE_FAILED, |
217 | 0 | "%s: unable to close file.", |
218 | 0 | function ); |
219 | |
|
220 | 0 | result = -1; |
221 | 0 | } |
222 | 0 | } |
223 | 0 | *file = NULL; |
224 | |
|
225 | 0 | memory_free( |
226 | 0 | internal_file ); |
227 | 0 | } |
228 | 0 | return( result ); |
229 | 0 | } |
230 | | |
231 | | /* Opens a file |
232 | | * Returns 1 if successful or -1 on error |
233 | | */ |
234 | | int libcfile_file_open( |
235 | | libcfile_file_t *file, |
236 | | const char *filename, |
237 | | int access_flags, |
238 | | libcerror_error_t **error ) |
239 | 0 | { |
240 | 0 | static char *function = "libcfile_file_open"; |
241 | 0 | uint32_t error_code = 0; |
242 | |
|
243 | 0 | if( libcfile_file_open_with_error_code( |
244 | 0 | file, |
245 | 0 | filename, |
246 | 0 | access_flags, |
247 | 0 | &error_code, |
248 | 0 | error ) != 1 ) |
249 | 0 | { |
250 | 0 | libcerror_error_set( |
251 | 0 | error, |
252 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
253 | 0 | LIBCERROR_IO_ERROR_OPEN_FAILED, |
254 | 0 | "%s: unable to open file.", |
255 | 0 | function ); |
256 | |
|
257 | 0 | return( -1 ); |
258 | 0 | } |
259 | 0 | return( 1 ); |
260 | 0 | } |
261 | | |
262 | | #if defined( WINAPI ) |
263 | | |
264 | | #if ( WINVER >= 0x0600 ) && ( WINVER < 0x0602 ) |
265 | | |
266 | | #define FileAlignmentInfo 0x11 |
267 | | |
268 | | typedef struct _FILE_ALIGNMENT_INFO FILE_ALIGNMENT_INFO; |
269 | | |
270 | | struct _FILE_ALIGNMENT_INFO { |
271 | | ULONG AlignmentRequirement; |
272 | | }; |
273 | | |
274 | | #endif |
275 | | |
276 | | /* Opens a file |
277 | | * This function uses the WINAPI function for Windows XP (0x0501) or later, |
278 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
279 | | * Returns 1 if successful or -1 on error |
280 | | */ |
281 | | int libcfile_file_open_with_error_code( |
282 | | libcfile_file_t *file, |
283 | | const char *filename, |
284 | | int access_flags, |
285 | | uint32_t *error_code, |
286 | | libcerror_error_t **error ) |
287 | | { |
288 | | #if ( WINVER >= 0x0600 ) |
289 | | FILE_ALIGNMENT_INFO file_alignment_information; |
290 | | |
291 | | BOOL result = 0; |
292 | | #endif |
293 | | |
294 | | libcfile_internal_file_t *internal_file = NULL; |
295 | | static char *function = "libcfile_file_open_with_error_code"; |
296 | | DWORD file_io_access_flags = 0; |
297 | | DWORD file_io_creation_flags = 0; |
298 | | DWORD file_io_shared_flags = 0; |
299 | | DWORD flags_and_attributes = 0; |
300 | | size_t filename_length = 0; |
301 | | ssize_t read_count = 0; |
302 | | |
303 | | if( file == NULL ) |
304 | | { |
305 | | libcerror_error_set( |
306 | | error, |
307 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
308 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
309 | | "%s: invalid file.", |
310 | | function ); |
311 | | |
312 | | return( -1 ); |
313 | | } |
314 | | internal_file = (libcfile_internal_file_t *) file; |
315 | | |
316 | | if( internal_file->handle != INVALID_HANDLE_VALUE ) |
317 | | { |
318 | | libcerror_error_set( |
319 | | error, |
320 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
321 | | LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET, |
322 | | "%s: invalid file - handle value already set.", |
323 | | function ); |
324 | | |
325 | | return( -1 ); |
326 | | } |
327 | | if( filename == NULL ) |
328 | | { |
329 | | libcerror_error_set( |
330 | | error, |
331 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
332 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
333 | | "%s: invalid filename.", |
334 | | function ); |
335 | | |
336 | | return( -1 ); |
337 | | } |
338 | | if( ( ( access_flags & LIBCFILE_ACCESS_FLAG_READ ) != 0 ) |
339 | | && ( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) ) |
340 | | { |
341 | | file_io_access_flags = GENERIC_WRITE | GENERIC_READ; |
342 | | file_io_creation_flags = OPEN_ALWAYS; |
343 | | file_io_shared_flags = FILE_SHARE_READ; |
344 | | } |
345 | | else if( ( access_flags & LIBCFILE_ACCESS_FLAG_READ ) != 0 ) |
346 | | { |
347 | | file_io_access_flags = GENERIC_READ; |
348 | | file_io_creation_flags = OPEN_EXISTING; |
349 | | |
350 | | /* FILE_SHARE_WRITE is set to allow reading files that are |
351 | | * currently being written FILE_SHARE_READ alone does not suffice |
352 | | */ |
353 | | file_io_shared_flags = FILE_SHARE_READ | FILE_SHARE_WRITE; |
354 | | } |
355 | | else if( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
356 | | { |
357 | | file_io_access_flags = GENERIC_WRITE; |
358 | | file_io_creation_flags = OPEN_ALWAYS; |
359 | | file_io_shared_flags = FILE_SHARE_READ; |
360 | | } |
361 | | else |
362 | | { |
363 | | libcerror_error_set( |
364 | | error, |
365 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
366 | | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
367 | | "%s: unsupported access flags: 0x%02x.", |
368 | | function, |
369 | | access_flags ); |
370 | | |
371 | | return( -1 ); |
372 | | } |
373 | | if( ( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
374 | | && ( ( access_flags & LIBCFILE_ACCESS_FLAG_TRUNCATE ) != 0 ) ) |
375 | | { |
376 | | file_io_creation_flags = CREATE_ALWAYS; |
377 | | } |
378 | | if( error_code == NULL ) |
379 | | { |
380 | | libcerror_error_set( |
381 | | error, |
382 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
383 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
384 | | "%s: invalid error code.", |
385 | | function ); |
386 | | |
387 | | return( -1 ); |
388 | | } |
389 | | filename_length = narrow_string_length( |
390 | | filename ); |
391 | | |
392 | | if( filename_length > 4 ) |
393 | | { |
394 | | if( ( filename[ 0 ] == '\\' ) |
395 | | && ( filename[ 1 ] == '\\' ) |
396 | | && ( filename[ 2 ] == '.' ) |
397 | | && ( filename[ 3 ] == '\\' ) ) |
398 | | { |
399 | | /* Ignore \\.\F:\ which is an alternative notation for F: |
400 | | */ |
401 | | if( ( filename_length < 7 ) |
402 | | || ( filename[ 5 ] != ':' ) |
403 | | || ( filename[ 6 ] != '\\' ) ) |
404 | | { |
405 | | internal_file->is_device_filename = 1; |
406 | | internal_file->use_asynchronous_io = 1; |
407 | | } |
408 | | } |
409 | | } |
410 | | flags_and_attributes = FILE_ATTRIBUTE_NORMAL; |
411 | | |
412 | | if( internal_file->use_asynchronous_io != 0 ) |
413 | | { |
414 | | flags_and_attributes |= FILE_FLAG_OVERLAPPED; |
415 | | } |
416 | | #if ( WINVER <= 0x0500 ) |
417 | | internal_file->handle = libcfile_CreateFileA( |
418 | | (LPCSTR) filename, |
419 | | file_io_access_flags, |
420 | | file_io_shared_flags, |
421 | | NULL, |
422 | | file_io_creation_flags, |
423 | | flags_and_attributes, |
424 | | NULL ); |
425 | | #else |
426 | | internal_file->handle = CreateFileA( |
427 | | (LPCSTR) filename, |
428 | | file_io_access_flags, |
429 | | file_io_shared_flags, |
430 | | NULL, |
431 | | file_io_creation_flags, |
432 | | flags_and_attributes, |
433 | | NULL ); |
434 | | #endif |
435 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
436 | | { |
437 | | *error_code = (uint32_t) GetLastError(); |
438 | | |
439 | | switch( *error_code ) |
440 | | { |
441 | | case ERROR_ACCESS_DENIED: |
442 | | libcerror_error_set( |
443 | | error, |
444 | | LIBCERROR_ERROR_DOMAIN_IO, |
445 | | LIBCERROR_IO_ERROR_ACCESS_DENIED, |
446 | | "%s: access denied to file: %" PRIs_SYSTEM ".", |
447 | | function, |
448 | | filename ); |
449 | | |
450 | | break; |
451 | | |
452 | | case ERROR_FILE_NOT_FOUND: |
453 | | case ERROR_PATH_NOT_FOUND: |
454 | | libcerror_error_set( |
455 | | error, |
456 | | LIBCERROR_ERROR_DOMAIN_IO, |
457 | | LIBCERROR_IO_ERROR_INVALID_RESOURCE, |
458 | | "%s: no such file: %" PRIs_SYSTEM ".", |
459 | | function, |
460 | | filename ); |
461 | | |
462 | | break; |
463 | | |
464 | | default: |
465 | | libcerror_system_set_error( |
466 | | error, |
467 | | LIBCERROR_ERROR_DOMAIN_IO, |
468 | | LIBCERROR_IO_ERROR_OPEN_FAILED, |
469 | | *error_code, |
470 | | "%s: unable to open file: %" PRIs_SYSTEM ".", |
471 | | function, |
472 | | filename ); |
473 | | |
474 | | break; |
475 | | } |
476 | | return( -1 ); |
477 | | } |
478 | | if( internal_file->is_device_filename != 0 ) |
479 | | { |
480 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
481 | | internal_file, |
482 | | FSCTL_ALLOW_EXTENDED_DASD_IO, |
483 | | NULL, |
484 | | 0, |
485 | | NULL, |
486 | | 0, |
487 | | error_code, |
488 | | error ); |
489 | | |
490 | | if( read_count == -1 ) |
491 | | { |
492 | | libcerror_error_set( |
493 | | error, |
494 | | LIBCERROR_ERROR_DOMAIN_IO, |
495 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
496 | | "%s: unable to query device for: FSCTL_ALLOW_EXTENDED_DASD_IO.", |
497 | | function ); |
498 | | |
499 | | #if defined( HAVE_DEBUG_OUTPUT ) |
500 | | if( libcnotify_verbose != 0 ) |
501 | | { |
502 | | if( ( error != NULL ) |
503 | | && ( *error != NULL ) ) |
504 | | { |
505 | | libcnotify_print_error_backtrace( |
506 | | *error ); |
507 | | } |
508 | | } |
509 | | #endif |
510 | | libcerror_error_free( |
511 | | error ); |
512 | | } |
513 | | #if ( WINVER >= 0x0600 ) |
514 | | result = GetFileInformationByHandleEx( |
515 | | internal_file->handle, |
516 | | FileAlignmentInfo, |
517 | | (void *) &file_alignment_information, |
518 | | (DWORD) sizeof( FILE_ALIGNMENT_INFO ) ); |
519 | | |
520 | | if( result == FALSE ) |
521 | | { |
522 | | *error_code = (uint32_t) GetLastError(); |
523 | | |
524 | | libcerror_system_set_error( |
525 | | error, |
526 | | LIBCERROR_ERROR_DOMAIN_IO, |
527 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
528 | | *error_code, |
529 | | "%s: unable to retrieve file alignment information.", |
530 | | function ); |
531 | | |
532 | | #if defined( HAVE_DEBUG_OUTPUT ) |
533 | | if( libcnotify_verbose != 0 ) |
534 | | { |
535 | | if( ( error != NULL ) |
536 | | && ( *error != NULL ) ) |
537 | | { |
538 | | libcnotify_print_error_backtrace( |
539 | | *error ); |
540 | | } |
541 | | } |
542 | | #endif |
543 | | libcerror_error_free( |
544 | | error ); |
545 | | } |
546 | | else if( file_alignment_information.AlignmentRequirement != 0 ) |
547 | | { |
548 | | if( libcfile_internal_file_set_block_size( |
549 | | internal_file, |
550 | | (size_t) 512, |
551 | | error ) != 1 ) |
552 | | { |
553 | | libcerror_error_set( |
554 | | error, |
555 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
556 | | LIBCERROR_RUNTIME_ERROR_SET_FAILED, |
557 | | "%s: unable to set block size.", |
558 | | function ); |
559 | | |
560 | | return( -1 ); |
561 | | } |
562 | | } |
563 | | #endif /* ( WINVER >= 0x0600 ) */ |
564 | | } |
565 | | if( libcfile_internal_file_get_size( |
566 | | internal_file, |
567 | | &( internal_file->size ), |
568 | | error ) != 1 ) |
569 | | { |
570 | | libcerror_error_set( |
571 | | error, |
572 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
573 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
574 | | "%s: unable to retrieve size.", |
575 | | function ); |
576 | | |
577 | | return( -1 ); |
578 | | } |
579 | | internal_file->access_flags = access_flags; |
580 | | internal_file->current_offset = 0; |
581 | | |
582 | | return( 1 ); |
583 | | } |
584 | | |
585 | | #elif defined( HAVE_OPEN ) |
586 | | |
587 | | /* Opens a file |
588 | | * This function uses the POSIX open function or equivalent |
589 | | * Returns 1 if successful or -1 on error |
590 | | */ |
591 | | int libcfile_file_open_with_error_code( |
592 | | libcfile_file_t *file, |
593 | | const char *filename, |
594 | | int access_flags, |
595 | | uint32_t *error_code, |
596 | | libcerror_error_t **error ) |
597 | 0 | { |
598 | 0 | libcfile_internal_file_t *internal_file = NULL; |
599 | 0 | static char *function = "libcfile_file_open_with_error_code"; |
600 | 0 | int file_io_flags = 0; |
601 | |
|
602 | 0 | if( file == NULL ) |
603 | 0 | { |
604 | 0 | libcerror_error_set( |
605 | 0 | error, |
606 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
607 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
608 | 0 | "%s: invalid file.", |
609 | 0 | function ); |
610 | |
|
611 | 0 | return( -1 ); |
612 | 0 | } |
613 | 0 | internal_file = (libcfile_internal_file_t *) file; |
614 | |
|
615 | 0 | if( internal_file->descriptor != -1 ) |
616 | 0 | { |
617 | 0 | libcerror_error_set( |
618 | 0 | error, |
619 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
620 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET, |
621 | 0 | "%s: invalid file - descriptor value already set.", |
622 | 0 | function ); |
623 | |
|
624 | 0 | return( -1 ); |
625 | 0 | } |
626 | 0 | if( filename == NULL ) |
627 | 0 | { |
628 | 0 | libcerror_error_set( |
629 | 0 | error, |
630 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
631 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
632 | 0 | "%s: invalid filename.", |
633 | 0 | function ); |
634 | |
|
635 | 0 | return( -1 ); |
636 | 0 | } |
637 | 0 | if( ( ( access_flags & LIBCFILE_ACCESS_FLAG_READ ) != 0 ) |
638 | 0 | && ( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) ) |
639 | 0 | { |
640 | 0 | file_io_flags = O_RDWR | O_CREAT; |
641 | 0 | } |
642 | 0 | else if( ( access_flags & LIBCFILE_ACCESS_FLAG_READ ) != 0 ) |
643 | 0 | { |
644 | 0 | file_io_flags = O_RDONLY; |
645 | 0 | } |
646 | 0 | else if( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
647 | 0 | { |
648 | 0 | file_io_flags = O_WRONLY | O_CREAT; |
649 | 0 | } |
650 | 0 | else |
651 | 0 | { |
652 | 0 | libcerror_error_set( |
653 | 0 | error, |
654 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
655 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
656 | 0 | "%s: unsupported access flags: 0x%02x.", |
657 | 0 | function, |
658 | 0 | access_flags ); |
659 | |
|
660 | 0 | return( -1 ); |
661 | 0 | } |
662 | 0 | if( ( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
663 | 0 | && ( ( access_flags & LIBCFILE_ACCESS_FLAG_TRUNCATE ) != 0 ) ) |
664 | 0 | { |
665 | 0 | file_io_flags |= O_TRUNC; |
666 | 0 | } |
667 | 0 | if( error_code == NULL ) |
668 | 0 | { |
669 | 0 | libcerror_error_set( |
670 | 0 | error, |
671 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
672 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
673 | 0 | "%s: invalid error code.", |
674 | 0 | function ); |
675 | |
|
676 | 0 | return( -1 ); |
677 | 0 | } |
678 | 0 | #if defined( O_CLOEXEC ) |
679 | | /* Prevent the file descriptor to remain open across an execve |
680 | | */ |
681 | 0 | file_io_flags |= O_CLOEXEC; |
682 | 0 | #endif |
683 | | #if defined( HAVE_GLIB_H ) |
684 | | internal_file->descriptor = g_open( |
685 | | filename, |
686 | | file_io_flags, |
687 | | 0644 ); |
688 | | #else |
689 | 0 | internal_file->descriptor = open( |
690 | 0 | filename, |
691 | 0 | file_io_flags, |
692 | 0 | 0644 ); |
693 | 0 | #endif |
694 | 0 | if( internal_file->descriptor == -1 ) |
695 | 0 | { |
696 | 0 | *error_code = (uint32_t) errno; |
697 | |
|
698 | 0 | switch( *error_code ) |
699 | 0 | { |
700 | 0 | case EACCES: |
701 | 0 | libcerror_error_set( |
702 | 0 | error, |
703 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
704 | 0 | LIBCERROR_IO_ERROR_ACCESS_DENIED, |
705 | 0 | "%s: access denied to file: %" PRIs_SYSTEM ".", |
706 | 0 | function, |
707 | 0 | filename ); |
708 | |
|
709 | 0 | break; |
710 | | |
711 | 0 | case ENOENT: |
712 | 0 | libcerror_error_set( |
713 | 0 | error, |
714 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
715 | 0 | LIBCERROR_IO_ERROR_INVALID_RESOURCE, |
716 | 0 | "%s: no such file: %" PRIs_SYSTEM ".", |
717 | 0 | function, |
718 | 0 | filename ); |
719 | |
|
720 | 0 | break; |
721 | | |
722 | 0 | default: |
723 | 0 | libcerror_system_set_error( |
724 | 0 | error, |
725 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
726 | 0 | LIBCERROR_IO_ERROR_OPEN_FAILED, |
727 | 0 | *error_code, |
728 | 0 | "%s: unable to open file: %" PRIs_SYSTEM ".", |
729 | 0 | function, |
730 | 0 | filename ); |
731 | |
|
732 | 0 | break; |
733 | 0 | } |
734 | 0 | return( -1 ); |
735 | 0 | } |
736 | 0 | if( libcfile_internal_file_get_size( |
737 | 0 | internal_file, |
738 | 0 | &( internal_file->size ), |
739 | 0 | error ) != 1 ) |
740 | 0 | { |
741 | 0 | libcerror_error_set( |
742 | 0 | error, |
743 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
744 | 0 | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
745 | 0 | "%s: unable to retrieve size.", |
746 | 0 | function ); |
747 | |
|
748 | 0 | return( -1 ); |
749 | 0 | } |
750 | 0 | internal_file->access_flags = access_flags; |
751 | 0 | internal_file->current_offset = 0; |
752 | |
|
753 | 0 | return( 1 ); |
754 | 0 | } |
755 | | |
756 | | #else |
757 | | #error Missing file open function |
758 | | #endif |
759 | | |
760 | | #if defined( HAVE_WIDE_CHARACTER_TYPE ) |
761 | | |
762 | | /* Opens a file |
763 | | * Returns 1 if successful or -1 on error |
764 | | */ |
765 | | int libcfile_file_open_wide( |
766 | | libcfile_file_t *file, |
767 | | const wchar_t *filename, |
768 | | int access_flags, |
769 | | libcerror_error_t **error ) |
770 | | { |
771 | | static char *function = "libcfile_file_open_wide"; |
772 | | uint32_t error_code = 0; |
773 | | |
774 | | if( libcfile_file_open_wide_with_error_code( |
775 | | file, |
776 | | filename, |
777 | | access_flags, |
778 | | &error_code, |
779 | | error ) != 1 ) |
780 | | { |
781 | | libcerror_error_set( |
782 | | error, |
783 | | LIBCERROR_ERROR_DOMAIN_IO, |
784 | | LIBCERROR_IO_ERROR_OPEN_FAILED, |
785 | | "%s: unable to open file.", |
786 | | function ); |
787 | | |
788 | | return( -1 ); |
789 | | } |
790 | | return( 1 ); |
791 | | } |
792 | | |
793 | | #if defined( WINAPI ) |
794 | | |
795 | | /* Opens a file |
796 | | * This function uses the WINAPI function for Windows XP (0x0501) or later |
797 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
798 | | * Returns 1 if successful or -1 on error |
799 | | */ |
800 | | int libcfile_file_open_wide_with_error_code( |
801 | | libcfile_file_t *file, |
802 | | const wchar_t *filename, |
803 | | int access_flags, |
804 | | uint32_t *error_code, |
805 | | libcerror_error_t **error ) |
806 | | { |
807 | | #if ( WINVER >= 0x0600 ) |
808 | | FILE_ALIGNMENT_INFO file_alignment_information; |
809 | | |
810 | | BOOL result = 0; |
811 | | #endif |
812 | | |
813 | | libcfile_internal_file_t *internal_file = NULL; |
814 | | static char *function = "libcfile_file_open_wide_with_error_code"; |
815 | | DWORD file_io_access_flags = 0; |
816 | | DWORD file_io_creation_flags = 0; |
817 | | DWORD file_io_shared_flags = 0; |
818 | | DWORD flags_and_attributes = 0; |
819 | | size_t filename_length = 0; |
820 | | ssize_t read_count = 0; |
821 | | |
822 | | if( file == NULL ) |
823 | | { |
824 | | libcerror_error_set( |
825 | | error, |
826 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
827 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
828 | | "%s: invalid file.", |
829 | | function ); |
830 | | |
831 | | return( -1 ); |
832 | | } |
833 | | internal_file = (libcfile_internal_file_t *) file; |
834 | | |
835 | | if( internal_file->handle != INVALID_HANDLE_VALUE ) |
836 | | { |
837 | | libcerror_error_set( |
838 | | error, |
839 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
840 | | LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET, |
841 | | "%s: invalid file - handle value already set.", |
842 | | function ); |
843 | | |
844 | | return( -1 ); |
845 | | } |
846 | | if( filename == NULL ) |
847 | | { |
848 | | libcerror_error_set( |
849 | | error, |
850 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
851 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
852 | | "%s: invalid filename.", |
853 | | function ); |
854 | | |
855 | | return( -1 ); |
856 | | } |
857 | | if( ( ( access_flags & LIBCFILE_ACCESS_FLAG_READ ) != 0 ) |
858 | | && ( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) ) |
859 | | { |
860 | | file_io_access_flags = GENERIC_WRITE | GENERIC_READ; |
861 | | file_io_creation_flags = OPEN_ALWAYS; |
862 | | file_io_shared_flags = FILE_SHARE_READ; |
863 | | } |
864 | | else if( ( access_flags & LIBCFILE_ACCESS_FLAG_READ ) != 0 ) |
865 | | { |
866 | | file_io_access_flags = GENERIC_READ; |
867 | | file_io_creation_flags = OPEN_EXISTING; |
868 | | |
869 | | /* FILE_SHARE_WRITE is set to allow reading files that are |
870 | | * currently being written FILE_SHARE_READ alone does not suffice |
871 | | */ |
872 | | file_io_shared_flags = FILE_SHARE_READ | FILE_SHARE_WRITE; |
873 | | } |
874 | | else if( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
875 | | { |
876 | | file_io_access_flags = GENERIC_WRITE; |
877 | | file_io_creation_flags = OPEN_ALWAYS; |
878 | | file_io_shared_flags = FILE_SHARE_READ; |
879 | | } |
880 | | else |
881 | | { |
882 | | libcerror_error_set( |
883 | | error, |
884 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
885 | | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
886 | | "%s: unsupported access flags: 0x%02x.", |
887 | | function, |
888 | | access_flags ); |
889 | | |
890 | | return( -1 ); |
891 | | } |
892 | | if( ( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
893 | | && ( ( access_flags & LIBCFILE_ACCESS_FLAG_TRUNCATE ) != 0 ) ) |
894 | | { |
895 | | file_io_creation_flags = CREATE_ALWAYS; |
896 | | } |
897 | | if( error_code == NULL ) |
898 | | { |
899 | | libcerror_error_set( |
900 | | error, |
901 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
902 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
903 | | "%s: invalid error code.", |
904 | | function ); |
905 | | |
906 | | return( -1 ); |
907 | | } |
908 | | filename_length = wide_string_length( |
909 | | filename ); |
910 | | |
911 | | if( filename_length > 4 ) |
912 | | { |
913 | | if( ( filename[ 0 ] == (wchar_t) '\\' ) |
914 | | && ( filename[ 1 ] == (wchar_t) '\\' ) |
915 | | && ( filename[ 2 ] == (wchar_t) '.' ) |
916 | | && ( filename[ 3 ] == (wchar_t) '\\' ) ) |
917 | | { |
918 | | /* Ignore \\.\F:\ which is an alternative notation for F: |
919 | | */ |
920 | | if( ( filename_length < 7 ) |
921 | | || ( filename[ 5 ] != (wchar_t) ':' ) |
922 | | || ( filename[ 6 ] != (wchar_t) '\\' ) ) |
923 | | { |
924 | | internal_file->is_device_filename = 1; |
925 | | internal_file->use_asynchronous_io = 1; |
926 | | } |
927 | | } |
928 | | } |
929 | | flags_and_attributes = FILE_ATTRIBUTE_NORMAL; |
930 | | |
931 | | if( internal_file->use_asynchronous_io != 0 ) |
932 | | { |
933 | | flags_and_attributes |= FILE_FLAG_OVERLAPPED; |
934 | | } |
935 | | #if ( WINVER <= 0x0500 ) |
936 | | internal_file->handle = libcfile_CreateFileW( |
937 | | (LPCWSTR) filename, |
938 | | file_io_access_flags, |
939 | | file_io_shared_flags, |
940 | | NULL, |
941 | | file_io_creation_flags, |
942 | | flags_and_attributes, |
943 | | NULL ); |
944 | | #else |
945 | | internal_file->handle = CreateFileW( |
946 | | (LPCWSTR) filename, |
947 | | file_io_access_flags, |
948 | | file_io_shared_flags, |
949 | | NULL, |
950 | | file_io_creation_flags, |
951 | | flags_and_attributes, |
952 | | NULL ); |
953 | | #endif |
954 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
955 | | { |
956 | | *error_code = (uint32_t) GetLastError(); |
957 | | |
958 | | switch( *error_code ) |
959 | | { |
960 | | case ERROR_ACCESS_DENIED: |
961 | | libcerror_error_set( |
962 | | error, |
963 | | LIBCERROR_ERROR_DOMAIN_IO, |
964 | | LIBCERROR_IO_ERROR_ACCESS_DENIED, |
965 | | "%s: access denied to file: %" PRIs_SYSTEM ".", |
966 | | function, |
967 | | filename ); |
968 | | |
969 | | break; |
970 | | |
971 | | case ERROR_FILE_NOT_FOUND: |
972 | | case ERROR_PATH_NOT_FOUND: |
973 | | libcerror_error_set( |
974 | | error, |
975 | | LIBCERROR_ERROR_DOMAIN_IO, |
976 | | LIBCERROR_IO_ERROR_INVALID_RESOURCE, |
977 | | "%s: no such file: %" PRIs_SYSTEM ".", |
978 | | function, |
979 | | filename ); |
980 | | |
981 | | break; |
982 | | |
983 | | default: |
984 | | libcerror_system_set_error( |
985 | | error, |
986 | | LIBCERROR_ERROR_DOMAIN_IO, |
987 | | LIBCERROR_IO_ERROR_OPEN_FAILED, |
988 | | *error_code, |
989 | | "%s: unable to open file: %" PRIs_SYSTEM ".", |
990 | | function, |
991 | | filename ); |
992 | | |
993 | | break; |
994 | | } |
995 | | return( -1 ); |
996 | | } |
997 | | if( internal_file->is_device_filename != 0 ) |
998 | | { |
999 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
1000 | | internal_file, |
1001 | | FSCTL_ALLOW_EXTENDED_DASD_IO, |
1002 | | NULL, |
1003 | | 0, |
1004 | | NULL, |
1005 | | 0, |
1006 | | error_code, |
1007 | | error ); |
1008 | | |
1009 | | if( read_count == -1 ) |
1010 | | { |
1011 | | libcerror_error_set( |
1012 | | error, |
1013 | | LIBCERROR_ERROR_DOMAIN_IO, |
1014 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
1015 | | "%s: unable to query device for: FSCTL_ALLOW_EXTENDED_DASD_IO.", |
1016 | | function ); |
1017 | | |
1018 | | #if defined( HAVE_DEBUG_OUTPUT ) |
1019 | | if( libcnotify_verbose != 0 ) |
1020 | | { |
1021 | | if( ( error != NULL ) |
1022 | | && ( *error != NULL ) ) |
1023 | | { |
1024 | | libcnotify_print_error_backtrace( |
1025 | | *error ); |
1026 | | } |
1027 | | } |
1028 | | #endif |
1029 | | libcerror_error_free( |
1030 | | error ); |
1031 | | } |
1032 | | #if ( WINVER >= 0x0600 ) |
1033 | | result = GetFileInformationByHandleEx( |
1034 | | internal_file->handle, |
1035 | | FileAlignmentInfo, |
1036 | | (void *) &file_alignment_information, |
1037 | | (DWORD) sizeof( FILE_ALIGNMENT_INFO ) ); |
1038 | | |
1039 | | if( result == FALSE ) |
1040 | | { |
1041 | | *error_code = (uint32_t) GetLastError(); |
1042 | | |
1043 | | libcerror_system_set_error( |
1044 | | error, |
1045 | | LIBCERROR_ERROR_DOMAIN_IO, |
1046 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
1047 | | *error_code, |
1048 | | "%s: unable to retrieve file alignment information.", |
1049 | | function ); |
1050 | | |
1051 | | #if defined( HAVE_DEBUG_OUTPUT ) |
1052 | | if( libcnotify_verbose != 0 ) |
1053 | | { |
1054 | | if( ( error != NULL ) |
1055 | | && ( *error != NULL ) ) |
1056 | | { |
1057 | | libcnotify_print_error_backtrace( |
1058 | | *error ); |
1059 | | } |
1060 | | } |
1061 | | #endif |
1062 | | libcerror_error_free( |
1063 | | error ); |
1064 | | } |
1065 | | else if( file_alignment_information.AlignmentRequirement != 0 ) |
1066 | | { |
1067 | | if( libcfile_internal_file_set_block_size( |
1068 | | internal_file, |
1069 | | (size_t) 512, |
1070 | | error ) != 1 ) |
1071 | | { |
1072 | | libcerror_error_set( |
1073 | | error, |
1074 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1075 | | LIBCERROR_RUNTIME_ERROR_SET_FAILED, |
1076 | | "%s: unable to set block size.", |
1077 | | function ); |
1078 | | |
1079 | | return( -1 ); |
1080 | | } |
1081 | | } |
1082 | | #endif /* ( WINVER >= 0x0600 ) */ |
1083 | | } |
1084 | | if( libcfile_internal_file_get_size( |
1085 | | internal_file, |
1086 | | &( internal_file->size ), |
1087 | | error ) != 1 ) |
1088 | | { |
1089 | | libcerror_error_set( |
1090 | | error, |
1091 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1092 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
1093 | | "%s: unable to retrieve size.", |
1094 | | function ); |
1095 | | |
1096 | | return( -1 ); |
1097 | | } |
1098 | | internal_file->access_flags = access_flags; |
1099 | | internal_file->current_offset = 0; |
1100 | | |
1101 | | return( 1 ); |
1102 | | } |
1103 | | |
1104 | | #elif defined( HAVE_OPEN ) |
1105 | | |
1106 | | /* Opens a file |
1107 | | * This function uses the POSIX open function or equivalent |
1108 | | * Returns 1 if successful or -1 on error |
1109 | | */ |
1110 | | int libcfile_file_open_wide_with_error_code( |
1111 | | libcfile_file_t *file, |
1112 | | const wchar_t *filename, |
1113 | | int access_flags, |
1114 | | uint32_t *error_code, |
1115 | | libcerror_error_t **error ) |
1116 | | { |
1117 | | libcfile_internal_file_t *internal_file = NULL; |
1118 | | static char *function = "libcfile_file_open_wide_with_error_code"; |
1119 | | char *narrow_filename = NULL; |
1120 | | size_t filename_size = 0; |
1121 | | size_t narrow_filename_size = 0; |
1122 | | int file_io_flags = 0; |
1123 | | |
1124 | | if( file == NULL ) |
1125 | | { |
1126 | | libcerror_error_set( |
1127 | | error, |
1128 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1129 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1130 | | "%s: invalid file.", |
1131 | | function ); |
1132 | | |
1133 | | return( -1 ); |
1134 | | } |
1135 | | internal_file = (libcfile_internal_file_t *) file; |
1136 | | |
1137 | | if( internal_file->descriptor != -1 ) |
1138 | | { |
1139 | | libcerror_error_set( |
1140 | | error, |
1141 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1142 | | LIBCERROR_RUNTIME_ERROR_VALUE_ALREADY_SET, |
1143 | | "%s: invalid file - descriptor value already set.", |
1144 | | function ); |
1145 | | |
1146 | | return( -1 ); |
1147 | | } |
1148 | | if( filename == NULL ) |
1149 | | { |
1150 | | libcerror_error_set( |
1151 | | error, |
1152 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1153 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1154 | | "%s: invalid filename.", |
1155 | | function ); |
1156 | | |
1157 | | return( -1 ); |
1158 | | } |
1159 | | if( ( ( access_flags & LIBCFILE_ACCESS_FLAG_READ ) != 0 ) |
1160 | | && ( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) ) |
1161 | | { |
1162 | | file_io_flags = O_RDWR | O_CREAT; |
1163 | | } |
1164 | | else if( ( access_flags & LIBCFILE_ACCESS_FLAG_READ ) != 0 ) |
1165 | | { |
1166 | | file_io_flags = O_RDONLY; |
1167 | | } |
1168 | | else if( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
1169 | | { |
1170 | | file_io_flags = O_WRONLY | O_CREAT; |
1171 | | } |
1172 | | else |
1173 | | { |
1174 | | libcerror_error_set( |
1175 | | error, |
1176 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1177 | | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
1178 | | "%s: unsupported access flags: 0x%02x.", |
1179 | | function, |
1180 | | access_flags ); |
1181 | | |
1182 | | return( -1 ); |
1183 | | } |
1184 | | if( ( ( access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
1185 | | && ( ( access_flags & LIBCFILE_ACCESS_FLAG_TRUNCATE ) != 0 ) ) |
1186 | | { |
1187 | | file_io_flags |= O_TRUNC; |
1188 | | } |
1189 | | if( error_code == NULL ) |
1190 | | { |
1191 | | libcerror_error_set( |
1192 | | error, |
1193 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1194 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1195 | | "%s: invalid error code.", |
1196 | | function ); |
1197 | | |
1198 | | return( -1 ); |
1199 | | } |
1200 | | filename_size = 1 + wide_string_length( |
1201 | | filename ); |
1202 | | |
1203 | | if( libcfile_system_string_size_from_wide_string( |
1204 | | filename, |
1205 | | filename_size, |
1206 | | &narrow_filename_size, |
1207 | | error ) != 1 ) |
1208 | | { |
1209 | | libcerror_error_set( |
1210 | | error, |
1211 | | LIBCERROR_ERROR_DOMAIN_CONVERSION, |
1212 | | LIBCERROR_CONVERSION_ERROR_GENERIC, |
1213 | | "%s: unable to determine narrow character filename size.", |
1214 | | function ); |
1215 | | |
1216 | | goto on_error; |
1217 | | } |
1218 | | narrow_filename = narrow_string_allocate( |
1219 | | narrow_filename_size ); |
1220 | | |
1221 | | if( narrow_filename == NULL ) |
1222 | | { |
1223 | | libcerror_error_set( |
1224 | | error, |
1225 | | LIBCERROR_ERROR_DOMAIN_MEMORY, |
1226 | | LIBCERROR_MEMORY_ERROR_INSUFFICIENT, |
1227 | | "%s: unable to create narrow character filename.", |
1228 | | function ); |
1229 | | |
1230 | | goto on_error; |
1231 | | } |
1232 | | if( libcfile_system_string_copy_from_wide_string( |
1233 | | narrow_filename, |
1234 | | narrow_filename_size, |
1235 | | filename, |
1236 | | filename_size, |
1237 | | error ) != 1 ) |
1238 | | { |
1239 | | libcerror_error_set( |
1240 | | error, |
1241 | | LIBCERROR_ERROR_DOMAIN_CONVERSION, |
1242 | | LIBCERROR_CONVERSION_ERROR_GENERIC, |
1243 | | "%s: unable to set narrow character filename.", |
1244 | | function ); |
1245 | | |
1246 | | goto on_error; |
1247 | | } |
1248 | | #if defined( O_CLOEXEC ) |
1249 | | /* Prevent the file descriptor to remain open across an execve |
1250 | | */ |
1251 | | file_io_flags |= O_CLOEXEC; |
1252 | | #endif |
1253 | | #if defined( HAVE_GLIB_H ) |
1254 | | internal_file->descriptor = g_open( |
1255 | | narrow_filename, |
1256 | | file_io_flags, |
1257 | | 0644 ); |
1258 | | #else |
1259 | | internal_file->descriptor = open( |
1260 | | narrow_filename, |
1261 | | file_io_flags, |
1262 | | 0644 ); |
1263 | | #endif |
1264 | | |
1265 | | memory_free( |
1266 | | narrow_filename ); |
1267 | | |
1268 | | narrow_filename = NULL; |
1269 | | |
1270 | | if( internal_file->descriptor == -1 ) |
1271 | | { |
1272 | | *error_code = (uint32_t) errno; |
1273 | | |
1274 | | switch( *error_code ) |
1275 | | { |
1276 | | case EACCES: |
1277 | | libcerror_error_set( |
1278 | | error, |
1279 | | LIBCERROR_ERROR_DOMAIN_IO, |
1280 | | LIBCERROR_IO_ERROR_ACCESS_DENIED, |
1281 | | "%s: access denied to file: %" PRIs_SYSTEM ".", |
1282 | | function, |
1283 | | filename ); |
1284 | | |
1285 | | break; |
1286 | | |
1287 | | case ENOENT: |
1288 | | libcerror_error_set( |
1289 | | error, |
1290 | | LIBCERROR_ERROR_DOMAIN_IO, |
1291 | | LIBCERROR_IO_ERROR_INVALID_RESOURCE, |
1292 | | "%s: no such file: %" PRIs_SYSTEM ".", |
1293 | | function, |
1294 | | filename ); |
1295 | | |
1296 | | break; |
1297 | | |
1298 | | default: |
1299 | | libcerror_system_set_error( |
1300 | | error, |
1301 | | LIBCERROR_ERROR_DOMAIN_IO, |
1302 | | LIBCERROR_IO_ERROR_OPEN_FAILED, |
1303 | | *error_code, |
1304 | | "%s: unable to open file: %" PRIs_SYSTEM ".", |
1305 | | function, |
1306 | | filename ); |
1307 | | |
1308 | | break; |
1309 | | } |
1310 | | goto on_error; |
1311 | | } |
1312 | | if( libcfile_internal_file_get_size( |
1313 | | internal_file, |
1314 | | &( internal_file->size ), |
1315 | | error ) != 1 ) |
1316 | | { |
1317 | | libcerror_error_set( |
1318 | | error, |
1319 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1320 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
1321 | | "%s: unable to retrieve size.", |
1322 | | function ); |
1323 | | |
1324 | | goto on_error; |
1325 | | } |
1326 | | return( 1 ); |
1327 | | |
1328 | | on_error: |
1329 | | if( narrow_filename != NULL ) |
1330 | | { |
1331 | | memory_free( |
1332 | | narrow_filename ); |
1333 | | } |
1334 | | return( -1 ); |
1335 | | } |
1336 | | |
1337 | | #else |
1338 | | #error Missing file open wide function |
1339 | | #endif |
1340 | | |
1341 | | #endif /* defined( HAVE_WIDE_CHARACTER_TYPE ) */ |
1342 | | |
1343 | | #if defined( WINAPI ) |
1344 | | |
1345 | | /* Closes the file |
1346 | | * This function uses the WINAPI function for Windows 2000 (0x0500) or later |
1347 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
1348 | | * Returns 0 if successful or -1 on error |
1349 | | */ |
1350 | | int libcfile_file_close( |
1351 | | libcfile_file_t *file, |
1352 | | libcerror_error_t **error ) |
1353 | | { |
1354 | | libcfile_internal_file_t *internal_file = NULL; |
1355 | | static char *function = "libcfile_file_close"; |
1356 | | DWORD error_code = 0; |
1357 | | BOOL result = FALSE; |
1358 | | |
1359 | | if( file == NULL ) |
1360 | | { |
1361 | | libcerror_error_set( |
1362 | | error, |
1363 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1364 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1365 | | "%s: invalid file.", |
1366 | | function ); |
1367 | | |
1368 | | return( -1 ); |
1369 | | } |
1370 | | internal_file = (libcfile_internal_file_t *) file; |
1371 | | |
1372 | | if( internal_file->handle != INVALID_HANDLE_VALUE ) |
1373 | | { |
1374 | | #if ( WINVER <= 0x0500 ) |
1375 | | result = libcfile_CloseHandle( |
1376 | | internal_file->handle ); |
1377 | | #else |
1378 | | result = CloseHandle( |
1379 | | internal_file->handle ); |
1380 | | #endif |
1381 | | if( result == 0 ) |
1382 | | { |
1383 | | error_code = GetLastError(); |
1384 | | |
1385 | | libcerror_system_set_error( |
1386 | | error, |
1387 | | LIBCERROR_ERROR_DOMAIN_IO, |
1388 | | LIBCERROR_IO_ERROR_CLOSE_FAILED, |
1389 | | error_code, |
1390 | | "%s: unable to close file.", |
1391 | | function ); |
1392 | | |
1393 | | return( -1 ); |
1394 | | } |
1395 | | internal_file->handle = INVALID_HANDLE_VALUE; |
1396 | | internal_file->is_device_filename = 0; |
1397 | | internal_file->use_asynchronous_io = 0; |
1398 | | internal_file->access_flags = 0; |
1399 | | internal_file->size = 0; |
1400 | | internal_file->current_offset = 0; |
1401 | | } |
1402 | | if( internal_file->block_data != NULL ) |
1403 | | { |
1404 | | if( memory_set( |
1405 | | internal_file->block_data, |
1406 | | 0, |
1407 | | internal_file->block_size ) == NULL ) |
1408 | | { |
1409 | | libcerror_error_set( |
1410 | | error, |
1411 | | LIBCERROR_ERROR_DOMAIN_MEMORY, |
1412 | | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
1413 | | "%s: unable to clear block data.", |
1414 | | function ); |
1415 | | |
1416 | | return( -1 ); |
1417 | | } |
1418 | | } |
1419 | | return( 0 ); |
1420 | | } |
1421 | | |
1422 | | #elif defined( HAVE_CLOSE ) |
1423 | | |
1424 | | /* Closes the file |
1425 | | * This function uses the POSIX close function or equivalent |
1426 | | * Returns 0 if successful or -1 on error |
1427 | | */ |
1428 | | int libcfile_file_close( |
1429 | | libcfile_file_t *file, |
1430 | | libcerror_error_t **error ) |
1431 | 0 | { |
1432 | 0 | libcfile_internal_file_t *internal_file = NULL; |
1433 | 0 | static char *function = "libcfile_file_close"; |
1434 | |
|
1435 | 0 | if( file == NULL ) |
1436 | 0 | { |
1437 | 0 | libcerror_error_set( |
1438 | 0 | error, |
1439 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1440 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1441 | 0 | "%s: invalid file.", |
1442 | 0 | function ); |
1443 | |
|
1444 | 0 | return( -1 ); |
1445 | 0 | } |
1446 | 0 | internal_file = (libcfile_internal_file_t *) file; |
1447 | |
|
1448 | 0 | if( internal_file->descriptor != -1 ) |
1449 | 0 | { |
1450 | 0 | if( close( |
1451 | 0 | internal_file->descriptor ) != 0 ) |
1452 | 0 | { |
1453 | 0 | libcerror_system_set_error( |
1454 | 0 | error, |
1455 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
1456 | 0 | LIBCERROR_IO_ERROR_CLOSE_FAILED, |
1457 | 0 | errno, |
1458 | 0 | "%s: unable to close file.", |
1459 | 0 | function ); |
1460 | |
|
1461 | 0 | return( -1 ); |
1462 | 0 | } |
1463 | 0 | internal_file->descriptor = -1; |
1464 | 0 | internal_file->access_flags = 0; |
1465 | 0 | internal_file->size = 0; |
1466 | 0 | internal_file->current_offset = 0; |
1467 | 0 | } |
1468 | 0 | if( internal_file->block_data != NULL ) |
1469 | 0 | { |
1470 | 0 | if( memory_set( |
1471 | 0 | internal_file->block_data, |
1472 | 0 | 0, |
1473 | 0 | internal_file->block_size ) == NULL ) |
1474 | 0 | { |
1475 | 0 | libcerror_error_set( |
1476 | 0 | error, |
1477 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
1478 | 0 | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
1479 | 0 | "%s: unable to clear block data.", |
1480 | 0 | function ); |
1481 | |
|
1482 | 0 | return( -1 ); |
1483 | 0 | } |
1484 | 0 | } |
1485 | 0 | return( 0 ); |
1486 | 0 | } |
1487 | | |
1488 | | #else |
1489 | | #error Missing file close function |
1490 | | #endif |
1491 | | |
1492 | | /* Reads a buffer from the file |
1493 | | * Returns the number of bytes read if successful, or -1 on error |
1494 | | */ |
1495 | | ssize_t libcfile_file_read_buffer( |
1496 | | libcfile_file_t *file, |
1497 | | uint8_t *buffer, |
1498 | | size_t size, |
1499 | | libcerror_error_t **error ) |
1500 | 0 | { |
1501 | 0 | static char *function = "libcfile_file_read_buffer"; |
1502 | 0 | ssize_t read_count = 0; |
1503 | 0 | uint32_t error_code = 0; |
1504 | |
|
1505 | 0 | read_count = libcfile_file_read_buffer_with_error_code( |
1506 | 0 | file, |
1507 | 0 | buffer, |
1508 | 0 | size, |
1509 | 0 | &error_code, |
1510 | 0 | error ); |
1511 | |
|
1512 | 0 | if( read_count == -1 ) |
1513 | 0 | { |
1514 | 0 | libcerror_error_set( |
1515 | 0 | error, |
1516 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
1517 | 0 | LIBCERROR_IO_ERROR_READ_FAILED, |
1518 | 0 | "%s: unable to read from file.", |
1519 | 0 | function ); |
1520 | |
|
1521 | 0 | return( -1 ); |
1522 | 0 | } |
1523 | 0 | return( read_count ); |
1524 | 0 | } |
1525 | | |
1526 | | #if defined( WINAPI ) |
1527 | | |
1528 | | /* Reads a buffer from the file |
1529 | | * This is an internal function to wrap ReadFile in synchronous and asynchronous mode |
1530 | | * the current_offset is only used in asynchronous mode. |
1531 | | * Returns the number of bytes read if successful, or -1 on error |
1532 | | */ |
1533 | | ssize_t libcfile_internal_file_read_buffer_at_offset_with_error_code( |
1534 | | libcfile_internal_file_t *internal_file, |
1535 | | off64_t current_offset, |
1536 | | uint8_t *buffer, |
1537 | | size_t size, |
1538 | | uint32_t *error_code, |
1539 | | libcerror_error_t **error ) |
1540 | | { |
1541 | | OVERLAPPED overlapped_data; |
1542 | | |
1543 | | static char *function = "libcfile_internal_file_read_buffer_at_offset_with_error_code"; |
1544 | | OVERLAPPED *overlapped = NULL; |
1545 | | DWORD read_count = 0; |
1546 | | BOOL io_pending = FALSE; |
1547 | | BOOL result = FALSE; |
1548 | | |
1549 | | if( internal_file == NULL ) |
1550 | | { |
1551 | | libcerror_error_set( |
1552 | | error, |
1553 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1554 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1555 | | "%s: invalid file.", |
1556 | | function ); |
1557 | | |
1558 | | return( -1 ); |
1559 | | } |
1560 | | if( current_offset < 0 ) |
1561 | | { |
1562 | | libcerror_error_set( |
1563 | | error, |
1564 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1565 | | LIBCERROR_ARGUMENT_ERROR_VALUE_OUT_OF_BOUNDS, |
1566 | | "%s: invalid current offset value out of bounds.", |
1567 | | function ); |
1568 | | |
1569 | | return( -1 ); |
1570 | | } |
1571 | | if( buffer == NULL ) |
1572 | | { |
1573 | | libcerror_error_set( |
1574 | | error, |
1575 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1576 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1577 | | "%s: invalid buffer.", |
1578 | | function ); |
1579 | | |
1580 | | return( -1 ); |
1581 | | } |
1582 | | #if ( UINT32_MAX < SSIZE_MAX ) |
1583 | | if( size > (size_t) UINT32_MAX ) |
1584 | | #else |
1585 | | if( size > (size_t) SSIZE_MAX ) |
1586 | | #endif |
1587 | | { |
1588 | | libcerror_error_set( |
1589 | | error, |
1590 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1591 | | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
1592 | | "%s: invalid size value exceeds maximum.", |
1593 | | function ); |
1594 | | |
1595 | | return( -1 ); |
1596 | | } |
1597 | | if( error_code == NULL ) |
1598 | | { |
1599 | | libcerror_error_set( |
1600 | | error, |
1601 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1602 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1603 | | "%s: invalid error code.", |
1604 | | function ); |
1605 | | |
1606 | | return( -1 ); |
1607 | | } |
1608 | | /* For Windows devices we need to use asynchronous IO here |
1609 | | * otherwise the ReadFile function can return ERROR_INVALID_PARAMETER |
1610 | | * if the device is read concurrently and the the block is too large |
1611 | | * to fill. Using smaller block sizes decreases the likelyhood but |
1612 | | * also impacts the performance. |
1613 | | */ |
1614 | | if( internal_file->use_asynchronous_io != 0 ) |
1615 | | { |
1616 | | if( memory_set( |
1617 | | &overlapped_data, |
1618 | | 0, |
1619 | | sizeof( OVERLAPPED ) ) == NULL ) |
1620 | | { |
1621 | | libcerror_error_set( |
1622 | | error, |
1623 | | LIBCERROR_ERROR_DOMAIN_MEMORY, |
1624 | | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
1625 | | "%s: unable to clear overlapped data.", |
1626 | | function ); |
1627 | | |
1628 | | return( -1 ); |
1629 | | } |
1630 | | overlapped = &overlapped_data; |
1631 | | |
1632 | | overlapped->Offset = (DWORD) ( 0x0ffffffffUL & current_offset ); |
1633 | | overlapped->OffsetHigh = (DWORD) ( current_offset >> 32 ); |
1634 | | } |
1635 | | #if ( WINVER <= 0x0500 ) |
1636 | | result = libcfile_ReadFile( |
1637 | | internal_file->handle, |
1638 | | buffer, |
1639 | | (DWORD) size, |
1640 | | &read_count, |
1641 | | overlapped ); |
1642 | | #else |
1643 | | result = ReadFile( |
1644 | | internal_file->handle, |
1645 | | (VOID *) buffer, |
1646 | | (DWORD) size, |
1647 | | &read_count, |
1648 | | overlapped ); |
1649 | | #endif |
1650 | | if( result == 0 ) |
1651 | | { |
1652 | | *error_code = (uint32_t) GetLastError(); |
1653 | | |
1654 | | switch( *error_code ) |
1655 | | { |
1656 | | case ERROR_HANDLE_EOF: |
1657 | | break; |
1658 | | |
1659 | | case ERROR_IO_PENDING: |
1660 | | io_pending = TRUE; |
1661 | | break; |
1662 | | |
1663 | | default: |
1664 | | libcerror_system_set_error( |
1665 | | error, |
1666 | | LIBCERROR_ERROR_DOMAIN_IO, |
1667 | | LIBCERROR_IO_ERROR_READ_FAILED, |
1668 | | *error_code, |
1669 | | "%s: unable to read from file.", |
1670 | | function ); |
1671 | | |
1672 | | return( -1 ); |
1673 | | } |
1674 | | } |
1675 | | if( io_pending == TRUE ) |
1676 | | { |
1677 | | #if ( WINVER <= 0x0500 ) |
1678 | | result = libcfile_GetOverlappedResult( |
1679 | | internal_file->handle, |
1680 | | overlapped, |
1681 | | &read_count, |
1682 | | TRUE ); |
1683 | | #else |
1684 | | result = GetOverlappedResult( |
1685 | | internal_file->handle, |
1686 | | overlapped, |
1687 | | &read_count, |
1688 | | TRUE ); |
1689 | | #endif |
1690 | | if( result == 0 ) |
1691 | | { |
1692 | | *error_code = (uint32_t) GetLastError(); |
1693 | | |
1694 | | switch( *error_code ) |
1695 | | { |
1696 | | case ERROR_HANDLE_EOF: |
1697 | | break; |
1698 | | |
1699 | | default: |
1700 | | libcerror_system_set_error( |
1701 | | error, |
1702 | | LIBCERROR_ERROR_DOMAIN_IO, |
1703 | | LIBCERROR_IO_ERROR_READ_FAILED, |
1704 | | *error_code, |
1705 | | "%s: unable to read from file - overlapped result.", |
1706 | | function ); |
1707 | | |
1708 | | return( -1 ); |
1709 | | } |
1710 | | } |
1711 | | } |
1712 | | return( (ssize_t) read_count ); |
1713 | | } |
1714 | | |
1715 | | /* Reads a buffer from the file |
1716 | | * This function uses the WINAPI function for Windows XP (0x0501) or later |
1717 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
1718 | | * Returns the number of bytes read if successful, or -1 on error |
1719 | | */ |
1720 | | ssize_t libcfile_file_read_buffer_with_error_code( |
1721 | | libcfile_file_t *file, |
1722 | | uint8_t *buffer, |
1723 | | size_t size, |
1724 | | uint32_t *error_code, |
1725 | | libcerror_error_t **error ) |
1726 | | { |
1727 | | libcfile_internal_file_t *internal_file = NULL; |
1728 | | static char *function = "libcfile_file_read_buffer_with_error_code"; |
1729 | | size_t buffer_offset = 0; |
1730 | | size_t read_size = 0; |
1731 | | size_t read_size_remainder = 0; |
1732 | | ssize_t read_count = 0; |
1733 | | BOOL result = FALSE; |
1734 | | |
1735 | | if( file == NULL ) |
1736 | | { |
1737 | | libcerror_error_set( |
1738 | | error, |
1739 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1740 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1741 | | "%s: invalid file.", |
1742 | | function ); |
1743 | | |
1744 | | return( -1 ); |
1745 | | } |
1746 | | internal_file = (libcfile_internal_file_t *) file; |
1747 | | |
1748 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
1749 | | { |
1750 | | libcerror_error_set( |
1751 | | error, |
1752 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1753 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
1754 | | "%s: invalid file - missing handle.", |
1755 | | function ); |
1756 | | |
1757 | | return( -1 ); |
1758 | | } |
1759 | | if( buffer == NULL ) |
1760 | | { |
1761 | | libcerror_error_set( |
1762 | | error, |
1763 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1764 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1765 | | "%s: invalid buffer.", |
1766 | | function ); |
1767 | | |
1768 | | return( -1 ); |
1769 | | } |
1770 | | #if ( UINT32_MAX < SSIZE_MAX ) |
1771 | | if( size > (size_t) UINT32_MAX ) |
1772 | | #else |
1773 | | if( size > (size_t) SSIZE_MAX ) |
1774 | | #endif |
1775 | | { |
1776 | | libcerror_error_set( |
1777 | | error, |
1778 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1779 | | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
1780 | | "%s: invalid size value exceeds maximum.", |
1781 | | function ); |
1782 | | |
1783 | | return( -1 ); |
1784 | | } |
1785 | | if( error_code == NULL ) |
1786 | | { |
1787 | | libcerror_error_set( |
1788 | | error, |
1789 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
1790 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
1791 | | "%s: invalid error code.", |
1792 | | function ); |
1793 | | |
1794 | | return( -1 ); |
1795 | | } |
1796 | | if( internal_file->block_size != 0 ) |
1797 | | { |
1798 | | if( internal_file->block_data == NULL ) |
1799 | | { |
1800 | | libcerror_error_set( |
1801 | | error, |
1802 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1803 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
1804 | | "%s: invalid file - missing block data.", |
1805 | | function ); |
1806 | | |
1807 | | return( -1 ); |
1808 | | } |
1809 | | } |
1810 | | if( internal_file->current_offset < 0 ) |
1811 | | { |
1812 | | libcerror_error_set( |
1813 | | error, |
1814 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
1815 | | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
1816 | | "%s: invalid file - current offset value out of bounds.", |
1817 | | function ); |
1818 | | |
1819 | | return( -1 ); |
1820 | | } |
1821 | | if( ( size == 0 ) |
1822 | | || ( (size64_t) internal_file->current_offset > internal_file->size ) ) |
1823 | | { |
1824 | | return( 0 ); |
1825 | | } |
1826 | | if( ( (size64_t) internal_file->current_offset + size ) > internal_file->size ) |
1827 | | { |
1828 | | size = (size_t) ( internal_file->size - internal_file->current_offset ); |
1829 | | } |
1830 | | if( internal_file->block_size != 0 ) |
1831 | | { |
1832 | | /* Read a block of data to align with the next block |
1833 | | */ |
1834 | | if( ( internal_file->block_data_offset > 0 ) |
1835 | | && ( internal_file->block_data_size == 0 ) ) |
1836 | | { |
1837 | | if( memory_set( |
1838 | | internal_file->block_data, |
1839 | | 0, |
1840 | | internal_file->block_size ) == NULL ) |
1841 | | { |
1842 | | libcerror_error_set( |
1843 | | error, |
1844 | | LIBCERROR_ERROR_DOMAIN_MEMORY, |
1845 | | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
1846 | | "%s: unable to clear block data.", |
1847 | | function ); |
1848 | | |
1849 | | return( -1 ); |
1850 | | } |
1851 | | read_count = libcfile_internal_file_read_buffer_at_offset_with_error_code( |
1852 | | internal_file, |
1853 | | internal_file->current_offset - internal_file->block_data_offset, |
1854 | | internal_file->block_data, |
1855 | | internal_file->block_size, |
1856 | | error_code, |
1857 | | error ); |
1858 | | |
1859 | | if( read_count != (ssize_t) internal_file->block_size ) |
1860 | | { |
1861 | | libcerror_error_set( |
1862 | | error, |
1863 | | LIBCERROR_ERROR_DOMAIN_IO, |
1864 | | LIBCERROR_IO_ERROR_READ_FAILED, |
1865 | | "%s: invalid read count: %" PRIzd " returned.", |
1866 | | function, |
1867 | | read_count ); |
1868 | | |
1869 | | return( -1 ); |
1870 | | } |
1871 | | internal_file->block_data_size = (size_t) read_count; |
1872 | | } |
1873 | | if( ( internal_file->block_data_offset > 0 ) |
1874 | | && ( internal_file->block_data_offset < internal_file->block_data_size ) ) |
1875 | | { |
1876 | | read_size = internal_file->block_data_size - internal_file->block_data_offset; |
1877 | | |
1878 | | if( read_size > size ) |
1879 | | { |
1880 | | read_size = size; |
1881 | | } |
1882 | | if( memory_copy( |
1883 | | buffer, |
1884 | | &( internal_file->block_data[ internal_file->block_data_offset ] ), |
1885 | | read_size ) == NULL ) |
1886 | | { |
1887 | | libcerror_error_set( |
1888 | | error, |
1889 | | LIBCERROR_ERROR_DOMAIN_MEMORY, |
1890 | | LIBCERROR_MEMORY_ERROR_COPY_FAILED, |
1891 | | "%s: unable to copy block data.", |
1892 | | function ); |
1893 | | |
1894 | | return( -1 ); |
1895 | | } |
1896 | | buffer_offset += read_size; |
1897 | | size -= read_size; |
1898 | | internal_file->current_offset += read_size; |
1899 | | internal_file->block_data_offset += read_size; |
1900 | | } |
1901 | | if( size == 0 ) |
1902 | | { |
1903 | | return( (ssize_t) buffer_offset ); |
1904 | | } |
1905 | | } |
1906 | | read_size = size; |
1907 | | |
1908 | | if( internal_file->block_size != 0 ) |
1909 | | { |
1910 | | /* Read block aligned |
1911 | | */ |
1912 | | read_size_remainder = read_size % internal_file->block_size; |
1913 | | read_size -= read_size_remainder; |
1914 | | } |
1915 | | if( read_size > 0 ) |
1916 | | { |
1917 | | read_count = libcfile_internal_file_read_buffer_at_offset_with_error_code( |
1918 | | internal_file, |
1919 | | internal_file->current_offset, |
1920 | | &( buffer[ buffer_offset ] ), |
1921 | | read_size, |
1922 | | error_code, |
1923 | | error ); |
1924 | | |
1925 | | if( ( internal_file->block_size == 0 ) |
1926 | | && ( read_count < 0 ) ) |
1927 | | { |
1928 | | result = 0; |
1929 | | } |
1930 | | else if( ( internal_file->block_size != 0 ) |
1931 | | && ( read_count != (ssize_t) read_size ) ) |
1932 | | { |
1933 | | result = 0; |
1934 | | } |
1935 | | else |
1936 | | { |
1937 | | result = 1; |
1938 | | } |
1939 | | if( result == 0 ) |
1940 | | { |
1941 | | libcerror_system_set_error( |
1942 | | error, |
1943 | | LIBCERROR_ERROR_DOMAIN_IO, |
1944 | | LIBCERROR_IO_ERROR_READ_FAILED, |
1945 | | *error_code, |
1946 | | "%s: unable to read from file.", |
1947 | | function ); |
1948 | | |
1949 | | return( -1 ); |
1950 | | } |
1951 | | buffer_offset += (size_t) read_count; |
1952 | | internal_file->current_offset += read_count; |
1953 | | } |
1954 | | /* Read the non-aligned remainder |
1955 | | */ |
1956 | | if( read_size_remainder > 0 ) |
1957 | | { |
1958 | | if( memory_set( |
1959 | | internal_file->block_data, |
1960 | | 0, |
1961 | | internal_file->block_size ) == NULL ) |
1962 | | { |
1963 | | libcerror_error_set( |
1964 | | error, |
1965 | | LIBCERROR_ERROR_DOMAIN_MEMORY, |
1966 | | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
1967 | | "%s: unable to clear block data.", |
1968 | | function ); |
1969 | | |
1970 | | return( -1 ); |
1971 | | } |
1972 | | read_count = libcfile_internal_file_read_buffer_at_offset_with_error_code( |
1973 | | internal_file, |
1974 | | internal_file->current_offset, |
1975 | | internal_file->block_data, |
1976 | | internal_file->block_size, |
1977 | | error_code, |
1978 | | error ); |
1979 | | |
1980 | | if( read_count != (ssize_t) internal_file->block_size ) |
1981 | | { |
1982 | | libcerror_error_set( |
1983 | | error, |
1984 | | LIBCERROR_ERROR_DOMAIN_IO, |
1985 | | LIBCERROR_IO_ERROR_READ_FAILED, |
1986 | | "%s: invalid read count: %" PRIzd " returned.", |
1987 | | function, |
1988 | | read_count ); |
1989 | | |
1990 | | return( -1 ); |
1991 | | } |
1992 | | internal_file->block_data_offset = 0; |
1993 | | internal_file->block_data_size = (size_t) read_count; |
1994 | | |
1995 | | if( memory_copy( |
1996 | | &( buffer[ buffer_offset ] ), |
1997 | | internal_file->block_data, |
1998 | | read_size_remainder ) == NULL ) |
1999 | | { |
2000 | | libcerror_error_set( |
2001 | | error, |
2002 | | LIBCERROR_ERROR_DOMAIN_MEMORY, |
2003 | | LIBCERROR_MEMORY_ERROR_COPY_FAILED, |
2004 | | "%s: unable to copy block data.", |
2005 | | function ); |
2006 | | |
2007 | | return( -1 ); |
2008 | | } |
2009 | | buffer_offset += read_size_remainder; |
2010 | | internal_file->current_offset += read_size_remainder; |
2011 | | internal_file->block_data_offset += read_size_remainder; |
2012 | | } |
2013 | | return( (ssize_t) buffer_offset ); |
2014 | | } |
2015 | | |
2016 | | #elif defined( HAVE_READ ) |
2017 | | |
2018 | | /* Reads a buffer from the file |
2019 | | * This function uses the POSIX read function or equivalent |
2020 | | * Returns the number of bytes read if successful, or -1 on error |
2021 | | */ |
2022 | | ssize_t libcfile_file_read_buffer_with_error_code( |
2023 | | libcfile_file_t *file, |
2024 | | uint8_t *buffer, |
2025 | | size_t size, |
2026 | | uint32_t *error_code, |
2027 | | libcerror_error_t **error ) |
2028 | 0 | { |
2029 | 0 | libcfile_internal_file_t *internal_file = NULL; |
2030 | 0 | static char *function = "libcfile_file_read_buffer_with_error_code"; |
2031 | 0 | size_t buffer_offset = 0; |
2032 | 0 | size_t read_size = 0; |
2033 | 0 | size_t read_size_remainder = 0; |
2034 | 0 | ssize_t read_count = 0; |
2035 | 0 | int result = 0; |
2036 | |
|
2037 | 0 | if( file == NULL ) |
2038 | 0 | { |
2039 | 0 | libcerror_error_set( |
2040 | 0 | error, |
2041 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2042 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2043 | 0 | "%s: invalid file.", |
2044 | 0 | function ); |
2045 | |
|
2046 | 0 | return( -1 ); |
2047 | 0 | } |
2048 | 0 | internal_file = (libcfile_internal_file_t *) file; |
2049 | |
|
2050 | 0 | if( internal_file->descriptor == -1 ) |
2051 | 0 | { |
2052 | 0 | libcerror_error_set( |
2053 | 0 | error, |
2054 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2055 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
2056 | 0 | "%s: invalid file - missing descriptor.", |
2057 | 0 | function ); |
2058 | |
|
2059 | 0 | return( -1 ); |
2060 | 0 | } |
2061 | 0 | if( buffer == NULL ) |
2062 | 0 | { |
2063 | 0 | libcerror_error_set( |
2064 | 0 | error, |
2065 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2066 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2067 | 0 | "%s: invalid buffer.", |
2068 | 0 | function ); |
2069 | |
|
2070 | 0 | return( -1 ); |
2071 | 0 | } |
2072 | 0 | if( size > (size_t) SSIZE_MAX ) |
2073 | 0 | { |
2074 | 0 | libcerror_error_set( |
2075 | 0 | error, |
2076 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2077 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2078 | 0 | "%s: invalid size value exceeds maximum.", |
2079 | 0 | function ); |
2080 | |
|
2081 | 0 | return( -1 ); |
2082 | 0 | } |
2083 | 0 | if( error_code == NULL ) |
2084 | 0 | { |
2085 | 0 | libcerror_error_set( |
2086 | 0 | error, |
2087 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2088 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2089 | 0 | "%s: invalid error code.", |
2090 | 0 | function ); |
2091 | |
|
2092 | 0 | return( -1 ); |
2093 | 0 | } |
2094 | 0 | if( internal_file->block_size != 0 ) |
2095 | 0 | { |
2096 | 0 | if( internal_file->block_data == NULL ) |
2097 | 0 | { |
2098 | 0 | libcerror_error_set( |
2099 | 0 | error, |
2100 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2101 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
2102 | 0 | "%s: invalid file - missing block data.", |
2103 | 0 | function ); |
2104 | |
|
2105 | 0 | return( -1 ); |
2106 | 0 | } |
2107 | 0 | } |
2108 | 0 | if( internal_file->current_offset < 0 ) |
2109 | 0 | { |
2110 | 0 | libcerror_error_set( |
2111 | 0 | error, |
2112 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2113 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
2114 | 0 | "%s: invalid file - current offset value out of bounds.", |
2115 | 0 | function ); |
2116 | |
|
2117 | 0 | return( -1 ); |
2118 | 0 | } |
2119 | 0 | if( ( size == 0 ) |
2120 | 0 | || ( (size64_t) internal_file->current_offset > internal_file->size ) ) |
2121 | 0 | { |
2122 | 0 | return( 0 ); |
2123 | 0 | } |
2124 | 0 | if( ( (size64_t) internal_file->current_offset + size ) > internal_file->size ) |
2125 | 0 | { |
2126 | 0 | size = (size_t) ( internal_file->size - internal_file->current_offset ); |
2127 | 0 | } |
2128 | 0 | if( internal_file->block_size != 0 ) |
2129 | 0 | { |
2130 | | /* Read a block of data to align with the next block |
2131 | | */ |
2132 | 0 | if( ( internal_file->block_data_offset > 0 ) |
2133 | 0 | && ( internal_file->block_data_size == 0 ) ) |
2134 | 0 | { |
2135 | 0 | if( memory_set( |
2136 | 0 | internal_file->block_data, |
2137 | 0 | 0, |
2138 | 0 | internal_file->block_size ) == NULL ) |
2139 | 0 | { |
2140 | 0 | libcerror_error_set( |
2141 | 0 | error, |
2142 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
2143 | 0 | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
2144 | 0 | "%s: unable to clear block data.", |
2145 | 0 | function ); |
2146 | |
|
2147 | 0 | return( -1 ); |
2148 | 0 | } |
2149 | 0 | read_count = read( |
2150 | 0 | internal_file->descriptor, |
2151 | 0 | internal_file->block_data, |
2152 | 0 | internal_file->block_size ); |
2153 | |
|
2154 | 0 | if( read_count != (ssize_t) internal_file->block_size ) |
2155 | 0 | { |
2156 | 0 | *error_code = (uint32_t) errno; |
2157 | |
|
2158 | 0 | libcerror_system_set_error( |
2159 | 0 | error, |
2160 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
2161 | 0 | LIBCERROR_IO_ERROR_READ_FAILED, |
2162 | 0 | *error_code, |
2163 | 0 | "%s: unable to read from file.", |
2164 | 0 | function ); |
2165 | |
|
2166 | 0 | return( -1 ); |
2167 | 0 | } |
2168 | 0 | internal_file->block_data_size = (size_t) read_count; |
2169 | 0 | } |
2170 | 0 | if( ( internal_file->block_data_offset > 0 ) |
2171 | 0 | && ( internal_file->block_data_offset < internal_file->block_data_size ) ) |
2172 | 0 | { |
2173 | 0 | read_size = internal_file->block_data_size - internal_file->block_data_offset; |
2174 | |
|
2175 | 0 | if( read_size > size ) |
2176 | 0 | { |
2177 | 0 | read_size = size; |
2178 | 0 | } |
2179 | 0 | if( memory_copy( |
2180 | 0 | buffer, |
2181 | 0 | &( internal_file->block_data[ internal_file->block_data_offset ] ), |
2182 | 0 | read_size ) == NULL ) |
2183 | 0 | { |
2184 | 0 | libcerror_error_set( |
2185 | 0 | error, |
2186 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
2187 | 0 | LIBCERROR_MEMORY_ERROR_COPY_FAILED, |
2188 | 0 | "%s: unable to copy block data.", |
2189 | 0 | function ); |
2190 | |
|
2191 | 0 | return( -1 ); |
2192 | 0 | } |
2193 | 0 | buffer_offset += read_size; |
2194 | 0 | size -= read_size; |
2195 | 0 | internal_file->block_data_offset += read_size; |
2196 | 0 | internal_file->current_offset += read_size; |
2197 | 0 | } |
2198 | 0 | if( size == 0 ) |
2199 | 0 | { |
2200 | 0 | return( (ssize_t) buffer_offset ); |
2201 | 0 | } |
2202 | 0 | } |
2203 | 0 | read_size = size; |
2204 | |
|
2205 | 0 | if( internal_file->block_size != 0 ) |
2206 | 0 | { |
2207 | | /* Read block aligned |
2208 | | */ |
2209 | 0 | read_size_remainder = read_size % internal_file->block_size; |
2210 | 0 | read_size -= read_size_remainder; |
2211 | 0 | } |
2212 | 0 | if( read_size > 0 ) |
2213 | 0 | { |
2214 | 0 | read_count = read( |
2215 | 0 | internal_file->descriptor, |
2216 | 0 | (void *) &( buffer[ buffer_offset ] ), |
2217 | 0 | read_size ); |
2218 | |
|
2219 | 0 | if( ( internal_file->block_size == 0 ) |
2220 | 0 | && ( read_count < 0 ) ) |
2221 | 0 | { |
2222 | 0 | result = 0; |
2223 | 0 | } |
2224 | 0 | else if( ( internal_file->block_size != 0 ) |
2225 | 0 | && ( read_count != (ssize_t) read_size ) ) |
2226 | 0 | { |
2227 | 0 | result = 0; |
2228 | 0 | } |
2229 | 0 | else |
2230 | 0 | { |
2231 | 0 | result = 1; |
2232 | 0 | } |
2233 | 0 | if( result == 0 ) |
2234 | 0 | { |
2235 | 0 | *error_code = (uint32_t) errno; |
2236 | |
|
2237 | 0 | libcerror_system_set_error( |
2238 | 0 | error, |
2239 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
2240 | 0 | LIBCERROR_IO_ERROR_READ_FAILED, |
2241 | 0 | *error_code, |
2242 | 0 | "%s: unable to read from file.", |
2243 | 0 | function ); |
2244 | |
|
2245 | 0 | return( -1 ); |
2246 | 0 | } |
2247 | 0 | buffer_offset += (size_t) read_count; |
2248 | 0 | internal_file->current_offset += read_count; |
2249 | 0 | } |
2250 | | /* Read the non-aligned remainder |
2251 | | */ |
2252 | 0 | if( read_size_remainder > 0 ) |
2253 | 0 | { |
2254 | 0 | if( memory_set( |
2255 | 0 | internal_file->block_data, |
2256 | 0 | 0, |
2257 | 0 | internal_file->block_size ) == NULL ) |
2258 | 0 | { |
2259 | 0 | libcerror_error_set( |
2260 | 0 | error, |
2261 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
2262 | 0 | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
2263 | 0 | "%s: unable to clear block data.", |
2264 | 0 | function ); |
2265 | |
|
2266 | 0 | return( -1 ); |
2267 | 0 | } |
2268 | 0 | read_count = read( |
2269 | 0 | internal_file->descriptor, |
2270 | 0 | internal_file->block_data, |
2271 | 0 | internal_file->block_size ); |
2272 | |
|
2273 | 0 | if( read_count != (ssize_t) internal_file->block_size ) |
2274 | 0 | { |
2275 | 0 | *error_code = (uint32_t) errno; |
2276 | |
|
2277 | 0 | libcerror_system_set_error( |
2278 | 0 | error, |
2279 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
2280 | 0 | LIBCERROR_IO_ERROR_READ_FAILED, |
2281 | 0 | *error_code, |
2282 | 0 | "%s: unable to read from file.", |
2283 | 0 | function ); |
2284 | |
|
2285 | 0 | return( -1 ); |
2286 | 0 | } |
2287 | 0 | internal_file->block_data_offset = 0; |
2288 | 0 | internal_file->block_data_size = (size_t) read_count; |
2289 | |
|
2290 | 0 | if( memory_copy( |
2291 | 0 | &( buffer[ buffer_offset ] ), |
2292 | 0 | internal_file->block_data, |
2293 | 0 | read_size_remainder ) == NULL ) |
2294 | 0 | { |
2295 | 0 | libcerror_error_set( |
2296 | 0 | error, |
2297 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
2298 | 0 | LIBCERROR_MEMORY_ERROR_COPY_FAILED, |
2299 | 0 | "%s: unable to copy block data.", |
2300 | 0 | function ); |
2301 | |
|
2302 | 0 | return( -1 ); |
2303 | 0 | } |
2304 | 0 | buffer_offset += read_size_remainder; |
2305 | 0 | internal_file->block_data_offset += read_size_remainder; |
2306 | 0 | internal_file->current_offset += read_size_remainder; |
2307 | 0 | } |
2308 | 0 | return( (ssize_t) buffer_offset ); |
2309 | 0 | } |
2310 | | |
2311 | | #else |
2312 | | #error Missing file read function |
2313 | | #endif |
2314 | | |
2315 | | /* Writes a buffer to the file |
2316 | | * Returns the number of bytes written if successful, or -1 on error |
2317 | | */ |
2318 | | ssize_t libcfile_file_write_buffer( |
2319 | | libcfile_file_t *file, |
2320 | | const uint8_t *buffer, |
2321 | | size_t size, |
2322 | | libcerror_error_t **error ) |
2323 | 0 | { |
2324 | 0 | static char *function = "libcfile_file_write_buffer"; |
2325 | 0 | ssize_t write_count = 0; |
2326 | 0 | uint32_t error_code = 0; |
2327 | |
|
2328 | 0 | write_count = libcfile_file_write_buffer_with_error_code( |
2329 | 0 | file, |
2330 | 0 | buffer, |
2331 | 0 | size, |
2332 | 0 | &error_code, |
2333 | 0 | error ); |
2334 | |
|
2335 | 0 | if( write_count == -1 ) |
2336 | 0 | { |
2337 | 0 | libcerror_error_set( |
2338 | 0 | error, |
2339 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
2340 | 0 | LIBCERROR_IO_ERROR_WRITE_FAILED, |
2341 | 0 | "%s: unable to write to file.", |
2342 | 0 | function ); |
2343 | |
|
2344 | 0 | return( -1 ); |
2345 | 0 | } |
2346 | 0 | return( write_count ); |
2347 | 0 | } |
2348 | | |
2349 | | #if defined( WINAPI ) |
2350 | | |
2351 | | /* Writes a buffer to the file |
2352 | | * This function uses the WINAPI function for Windows XP (0x0501) or later |
2353 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
2354 | | * Returns the number of bytes written if successful, or -1 on error |
2355 | | */ |
2356 | | ssize_t libcfile_file_write_buffer_with_error_code( |
2357 | | libcfile_file_t *file, |
2358 | | const uint8_t *buffer, |
2359 | | size_t size, |
2360 | | uint32_t *error_code, |
2361 | | libcerror_error_t **error ) |
2362 | | { |
2363 | | libcfile_internal_file_t *internal_file = NULL; |
2364 | | static char *function = "libcfile_file_write_buffer_with_error_code"; |
2365 | | ssize_t write_count = 0; |
2366 | | BOOL result = FALSE; |
2367 | | |
2368 | | if( file == NULL ) |
2369 | | { |
2370 | | libcerror_error_set( |
2371 | | error, |
2372 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2373 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2374 | | "%s: invalid file.", |
2375 | | function ); |
2376 | | |
2377 | | return( -1 ); |
2378 | | } |
2379 | | internal_file = (libcfile_internal_file_t *) file; |
2380 | | |
2381 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
2382 | | { |
2383 | | libcerror_error_set( |
2384 | | error, |
2385 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2386 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
2387 | | "%s: invalid file - missing handle.", |
2388 | | function ); |
2389 | | |
2390 | | return( -1 ); |
2391 | | } |
2392 | | if( buffer == NULL ) |
2393 | | { |
2394 | | libcerror_error_set( |
2395 | | error, |
2396 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2397 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2398 | | "%s: invalid buffer.", |
2399 | | function ); |
2400 | | |
2401 | | return( -1 ); |
2402 | | } |
2403 | | #if ( UINT32_MAX < SSIZE_MAX ) |
2404 | | if( size > (size_t) UINT32_MAX ) |
2405 | | #else |
2406 | | if( size > (size_t) SSIZE_MAX ) |
2407 | | #endif |
2408 | | { |
2409 | | libcerror_error_set( |
2410 | | error, |
2411 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2412 | | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2413 | | "%s: invalid size value exceeds maximum.", |
2414 | | function ); |
2415 | | |
2416 | | return( -1 ); |
2417 | | } |
2418 | | if( error_code == NULL ) |
2419 | | { |
2420 | | libcerror_error_set( |
2421 | | error, |
2422 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2423 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2424 | | "%s: invalid error code.", |
2425 | | function ); |
2426 | | |
2427 | | return( -1 ); |
2428 | | } |
2429 | | #if ( WINVER <= 0x0500 ) |
2430 | | result = libcfile_WriteFile( |
2431 | | internal_file->handle, |
2432 | | (VOID *) buffer, |
2433 | | (DWORD) size, |
2434 | | (DWORD *) &write_count, |
2435 | | NULL ); |
2436 | | #else |
2437 | | result = WriteFile( |
2438 | | internal_file->handle, |
2439 | | (VOID *) buffer, |
2440 | | (DWORD) size, |
2441 | | (DWORD *) &write_count, |
2442 | | NULL ); |
2443 | | #endif |
2444 | | if( result == 0 ) |
2445 | | { |
2446 | | *error_code = (uint32_t) GetLastError(); |
2447 | | |
2448 | | libcerror_system_set_error( |
2449 | | error, |
2450 | | LIBCERROR_ERROR_DOMAIN_IO, |
2451 | | LIBCERROR_IO_ERROR_WRITE_FAILED, |
2452 | | *error_code, |
2453 | | "%s: unable to write to file.", |
2454 | | function ); |
2455 | | |
2456 | | return( -1 ); |
2457 | | } |
2458 | | if( write_count < 0 ) |
2459 | | { |
2460 | | libcerror_error_set( |
2461 | | error, |
2462 | | LIBCERROR_ERROR_DOMAIN_IO, |
2463 | | LIBCERROR_IO_ERROR_WRITE_FAILED, |
2464 | | "%s: invalid write count: %" PRIzd " returned.", |
2465 | | function, |
2466 | | write_count ); |
2467 | | |
2468 | | return( -1 ); |
2469 | | } |
2470 | | internal_file->current_offset += write_count; |
2471 | | |
2472 | | if( (size64_t) internal_file->current_offset > internal_file->size ) |
2473 | | { |
2474 | | internal_file->size = (size64_t) internal_file->current_offset; |
2475 | | } |
2476 | | return( write_count ); |
2477 | | } |
2478 | | |
2479 | | #elif defined( HAVE_WRITE ) |
2480 | | |
2481 | | /* Writes a buffer to the file |
2482 | | * This function uses the POSIX write function or equivalent |
2483 | | * Returns the number of bytes written if successful, or -1 on error |
2484 | | */ |
2485 | | ssize_t libcfile_file_write_buffer_with_error_code( |
2486 | | libcfile_file_t *file, |
2487 | | const uint8_t *buffer, |
2488 | | size_t size, |
2489 | | uint32_t *error_code, |
2490 | | libcerror_error_t **error ) |
2491 | 0 | { |
2492 | 0 | libcfile_internal_file_t *internal_file = NULL; |
2493 | 0 | static char *function = "libcfile_file_write_buffer_with_error_code"; |
2494 | 0 | ssize_t write_count = 0; |
2495 | |
|
2496 | 0 | if( file == NULL ) |
2497 | 0 | { |
2498 | 0 | libcerror_error_set( |
2499 | 0 | error, |
2500 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2501 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2502 | 0 | "%s: invalid file.", |
2503 | 0 | function ); |
2504 | |
|
2505 | 0 | return( -1 ); |
2506 | 0 | } |
2507 | 0 | internal_file = (libcfile_internal_file_t *) file; |
2508 | |
|
2509 | 0 | if( internal_file->descriptor == -1 ) |
2510 | 0 | { |
2511 | 0 | libcerror_error_set( |
2512 | 0 | error, |
2513 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2514 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
2515 | 0 | "%s: invalid file - missing descriptor.", |
2516 | 0 | function ); |
2517 | |
|
2518 | 0 | return( -1 ); |
2519 | 0 | } |
2520 | 0 | if( buffer == NULL ) |
2521 | 0 | { |
2522 | 0 | libcerror_error_set( |
2523 | 0 | error, |
2524 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2525 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2526 | 0 | "%s: invalid buffer.", |
2527 | 0 | function ); |
2528 | |
|
2529 | 0 | return( -1 ); |
2530 | 0 | } |
2531 | 0 | if( size > (size_t) SSIZE_MAX ) |
2532 | 0 | { |
2533 | 0 | libcerror_error_set( |
2534 | 0 | error, |
2535 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2536 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2537 | 0 | "%s: invalid size value exceeds maximum.", |
2538 | 0 | function ); |
2539 | |
|
2540 | 0 | return( -1 ); |
2541 | 0 | } |
2542 | 0 | if( error_code == NULL ) |
2543 | 0 | { |
2544 | 0 | libcerror_error_set( |
2545 | 0 | error, |
2546 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2547 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2548 | 0 | "%s: invalid error code.", |
2549 | 0 | function ); |
2550 | |
|
2551 | 0 | return( -1 ); |
2552 | 0 | } |
2553 | 0 | write_count = write( |
2554 | 0 | internal_file->descriptor, |
2555 | 0 | (void *) buffer, |
2556 | 0 | size ); |
2557 | |
|
2558 | 0 | if( write_count < 0 ) |
2559 | 0 | { |
2560 | 0 | *error_code = (uint32_t) errno; |
2561 | |
|
2562 | 0 | libcerror_system_set_error( |
2563 | 0 | error, |
2564 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
2565 | 0 | LIBCERROR_IO_ERROR_WRITE_FAILED, |
2566 | 0 | *error_code, |
2567 | 0 | "%s: unable to write to file.", |
2568 | 0 | function ); |
2569 | |
|
2570 | 0 | return( -1 ); |
2571 | 0 | } |
2572 | 0 | internal_file->current_offset += write_count; |
2573 | |
|
2574 | 0 | if( (size64_t) internal_file->current_offset > internal_file->size ) |
2575 | 0 | { |
2576 | 0 | internal_file->size = (size64_t) internal_file->current_offset; |
2577 | 0 | } |
2578 | 0 | return( write_count ); |
2579 | 0 | } |
2580 | | |
2581 | | #else |
2582 | | #error Missing file write function |
2583 | | #endif |
2584 | | |
2585 | | #if defined( WINAPI ) |
2586 | | |
2587 | | /* Seeks a certain offset within the file |
2588 | | * This function uses the WINAPI function for Windows XP (0x0501) or later |
2589 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
2590 | | * Returns the offset if the seek is successful or -1 on error |
2591 | | */ |
2592 | | off64_t libcfile_file_seek_offset( |
2593 | | libcfile_file_t *file, |
2594 | | off64_t offset, |
2595 | | int whence, |
2596 | | libcerror_error_t **error ) |
2597 | | { |
2598 | | libcfile_internal_file_t *internal_file = NULL; |
2599 | | static char *function = "libcfile_file_seek_offset"; |
2600 | | off64_t offset_remainder = 0; |
2601 | | LARGE_INTEGER large_integer_offset = LIBCFILE_LARGE_INTEGER_ZERO; |
2602 | | DWORD error_code = 0; |
2603 | | DWORD move_method = 0; |
2604 | | |
2605 | | if( file == NULL ) |
2606 | | { |
2607 | | libcerror_error_set( |
2608 | | error, |
2609 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2610 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2611 | | "%s: invalid file.", |
2612 | | function ); |
2613 | | |
2614 | | return( -1 ); |
2615 | | } |
2616 | | internal_file = (libcfile_internal_file_t *) file; |
2617 | | |
2618 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
2619 | | { |
2620 | | libcerror_error_set( |
2621 | | error, |
2622 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2623 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
2624 | | "%s: invalid file - missing handle.", |
2625 | | function ); |
2626 | | |
2627 | | return( -1 ); |
2628 | | } |
2629 | | if( offset > (off64_t) INT64_MAX ) |
2630 | | { |
2631 | | libcerror_error_set( |
2632 | | error, |
2633 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2634 | | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2635 | | "%s: invalid offset value exceeds maximum.", |
2636 | | function ); |
2637 | | |
2638 | | return( -1 ); |
2639 | | } |
2640 | | if( ( whence != SEEK_CUR ) |
2641 | | && ( whence != SEEK_END ) |
2642 | | && ( whence != SEEK_SET ) ) |
2643 | | { |
2644 | | libcerror_error_set( |
2645 | | error, |
2646 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2647 | | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
2648 | | "%s: unsupported whence.", |
2649 | | function ); |
2650 | | |
2651 | | return( -1 ); |
2652 | | } |
2653 | | if( internal_file->block_size != 0 ) |
2654 | | { |
2655 | | if( whence == SEEK_CUR ) |
2656 | | { |
2657 | | offset += internal_file->current_offset; |
2658 | | } |
2659 | | else if( whence == SEEK_END ) |
2660 | | { |
2661 | | offset += internal_file->size; |
2662 | | } |
2663 | | whence = SEEK_SET; |
2664 | | offset_remainder = offset % internal_file->block_size; |
2665 | | offset -= offset_remainder; |
2666 | | } |
2667 | | if( whence == SEEK_SET ) |
2668 | | { |
2669 | | move_method = FILE_BEGIN; |
2670 | | } |
2671 | | else if( whence == SEEK_CUR ) |
2672 | | { |
2673 | | move_method = FILE_CURRENT; |
2674 | | } |
2675 | | else if( whence == SEEK_END ) |
2676 | | { |
2677 | | move_method = FILE_END; |
2678 | | } |
2679 | | /* SetFilePointerEx cannot be used in combination with FILE_FLAG_OVERLAPPED. |
2680 | | */ |
2681 | | if( internal_file->use_asynchronous_io == 0 ) |
2682 | | { |
2683 | | #if defined( __BORLANDC__ ) && __BORLANDC__ <= 0x0520 |
2684 | | large_integer_offset.QuadPart = (LONGLONG) offset; |
2685 | | #else |
2686 | | large_integer_offset.LowPart = (DWORD) ( 0x0ffffffffUL & offset ); |
2687 | | large_integer_offset.HighPart = (LONG) ( offset >> 32 ); |
2688 | | #endif |
2689 | | |
2690 | | #if ( WINVER <= 0x0500 ) |
2691 | | if( libcfile_SetFilePointerEx( |
2692 | | internal_file->handle, |
2693 | | large_integer_offset, |
2694 | | &large_integer_offset, |
2695 | | move_method ) == 0 ) |
2696 | | #else |
2697 | | if( SetFilePointerEx( |
2698 | | internal_file->handle, |
2699 | | large_integer_offset, |
2700 | | &large_integer_offset, |
2701 | | move_method ) == 0 ) |
2702 | | #endif |
2703 | | { |
2704 | | error_code = GetLastError(); |
2705 | | |
2706 | | libcerror_system_set_error( |
2707 | | error, |
2708 | | LIBCERROR_ERROR_DOMAIN_IO, |
2709 | | LIBCERROR_IO_ERROR_SEEK_FAILED, |
2710 | | error_code, |
2711 | | "%s: unable to seek offset in file.", |
2712 | | function ); |
2713 | | |
2714 | | return( -1 ); |
2715 | | } |
2716 | | #if defined( __BORLANDC__ ) && __BORLANDC__ <= 0x0520 |
2717 | | offset = (off64_t) large_integer_offset.QuadPart; |
2718 | | #else |
2719 | | offset = ( (off64_t) large_integer_offset.HighPart << 32 ) + large_integer_offset.LowPart; |
2720 | | #endif |
2721 | | |
2722 | | if( offset < 0 ) |
2723 | | { |
2724 | | libcerror_error_set( |
2725 | | error, |
2726 | | LIBCERROR_ERROR_DOMAIN_IO, |
2727 | | LIBCERROR_IO_ERROR_SEEK_FAILED, |
2728 | | "%s: invalid offset: %" PRIi64 " returned.", |
2729 | | function, |
2730 | | offset ); |
2731 | | |
2732 | | return( -1 ); |
2733 | | } |
2734 | | } |
2735 | | internal_file->current_offset = offset; |
2736 | | |
2737 | | if( internal_file->block_size != 0 ) |
2738 | | { |
2739 | | internal_file->current_offset += offset_remainder; |
2740 | | internal_file->block_data_offset = (size_t) offset_remainder; |
2741 | | internal_file->block_data_size = 0; |
2742 | | } |
2743 | | return( internal_file->current_offset ); |
2744 | | } |
2745 | | |
2746 | | #elif defined( HAVE_LSEEK ) |
2747 | | |
2748 | | /* Seeks a certain offset within the file |
2749 | | * This function uses the POSIX lseek function or equivalent |
2750 | | * Returns the offset if the seek is successful or -1 on error |
2751 | | */ |
2752 | | off64_t libcfile_file_seek_offset( |
2753 | | libcfile_file_t *file, |
2754 | | off64_t offset, |
2755 | | int whence, |
2756 | | libcerror_error_t **error ) |
2757 | 0 | { |
2758 | 0 | libcfile_internal_file_t *internal_file = NULL; |
2759 | 0 | static char *function = "libcfile_file_seek_offset"; |
2760 | 0 | off64_t offset_remainder = 0; |
2761 | |
|
2762 | 0 | if( file == NULL ) |
2763 | 0 | { |
2764 | 0 | libcerror_error_set( |
2765 | 0 | error, |
2766 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2767 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2768 | 0 | "%s: invalid file.", |
2769 | 0 | function ); |
2770 | |
|
2771 | 0 | return( -1 ); |
2772 | 0 | } |
2773 | 0 | internal_file = (libcfile_internal_file_t *) file; |
2774 | |
|
2775 | 0 | if( internal_file->descriptor == -1 ) |
2776 | 0 | { |
2777 | 0 | libcerror_error_set( |
2778 | 0 | error, |
2779 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2780 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
2781 | 0 | "%s: invalid file - missing descriptor.", |
2782 | 0 | function ); |
2783 | |
|
2784 | 0 | return( -1 ); |
2785 | 0 | } |
2786 | 0 | if( offset > (off64_t) INT64_MAX ) |
2787 | 0 | { |
2788 | 0 | libcerror_error_set( |
2789 | 0 | error, |
2790 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2791 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2792 | 0 | "%s: invalid offset value exceeds maximum.", |
2793 | 0 | function ); |
2794 | |
|
2795 | 0 | return( -1 ); |
2796 | 0 | } |
2797 | 0 | if( ( whence != SEEK_CUR ) |
2798 | 0 | && ( whence != SEEK_END ) |
2799 | 0 | && ( whence != SEEK_SET ) ) |
2800 | 0 | { |
2801 | 0 | libcerror_error_set( |
2802 | 0 | error, |
2803 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2804 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
2805 | 0 | "%s: unsupported whence.", |
2806 | 0 | function ); |
2807 | |
|
2808 | 0 | return( -1 ); |
2809 | 0 | } |
2810 | 0 | if( internal_file->block_size != 0 ) |
2811 | 0 | { |
2812 | 0 | if( whence == SEEK_CUR ) |
2813 | 0 | { |
2814 | 0 | offset += internal_file->current_offset; |
2815 | 0 | } |
2816 | 0 | else if( whence == SEEK_END ) |
2817 | 0 | { |
2818 | 0 | offset += internal_file->size; |
2819 | 0 | } |
2820 | 0 | whence = SEEK_SET; |
2821 | 0 | offset_remainder = offset % internal_file->block_size; |
2822 | 0 | offset -= offset_remainder; |
2823 | 0 | } |
2824 | 0 | offset = lseek( |
2825 | 0 | internal_file->descriptor, |
2826 | 0 | (off_t) offset, |
2827 | 0 | whence ); |
2828 | |
|
2829 | 0 | if( offset < 0 ) |
2830 | 0 | { |
2831 | 0 | libcerror_system_set_error( |
2832 | 0 | error, |
2833 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
2834 | 0 | LIBCERROR_IO_ERROR_SEEK_FAILED, |
2835 | 0 | errno, |
2836 | 0 | "%s: unable to seek offset in file.", |
2837 | 0 | function ); |
2838 | |
|
2839 | 0 | return( -1 ); |
2840 | 0 | } |
2841 | 0 | internal_file->current_offset = offset; |
2842 | |
|
2843 | 0 | if( internal_file->block_size != 0 ) |
2844 | 0 | { |
2845 | 0 | internal_file->current_offset += offset_remainder; |
2846 | 0 | internal_file->block_data_offset = (size_t) offset_remainder; |
2847 | 0 | internal_file->block_data_size = 0; |
2848 | 0 | } |
2849 | 0 | return( internal_file->current_offset ); |
2850 | 0 | } |
2851 | | |
2852 | | #else |
2853 | | #error Missing file lseek function |
2854 | | #endif |
2855 | | |
2856 | | #if defined( WINAPI ) |
2857 | | |
2858 | | /* Resizes the file |
2859 | | * This function uses the WINAPI function for Windows XP (0x0501) or later |
2860 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
2861 | | * Returns 1 if successful or -1 on error |
2862 | | */ |
2863 | | int libcfile_file_resize( |
2864 | | libcfile_file_t *file, |
2865 | | size64_t size, |
2866 | | libcerror_error_t **error ) |
2867 | | { |
2868 | | libcfile_internal_file_t *internal_file = NULL; |
2869 | | static char *function = "libcfile_file_resize"; |
2870 | | off64_t offset = 0; |
2871 | | LARGE_INTEGER large_integer_offset = LIBCFILE_LARGE_INTEGER_ZERO; |
2872 | | DWORD error_code = 0; |
2873 | | |
2874 | | if( file == NULL ) |
2875 | | { |
2876 | | libcerror_error_set( |
2877 | | error, |
2878 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2879 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
2880 | | "%s: invalid file.", |
2881 | | function ); |
2882 | | |
2883 | | return( -1 ); |
2884 | | } |
2885 | | internal_file = (libcfile_internal_file_t *) file; |
2886 | | |
2887 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
2888 | | { |
2889 | | libcerror_error_set( |
2890 | | error, |
2891 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
2892 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
2893 | | "%s: invalid file - missing handle.", |
2894 | | function ); |
2895 | | |
2896 | | return( -1 ); |
2897 | | } |
2898 | | if( size > (size64_t) INT64_MAX ) |
2899 | | { |
2900 | | libcerror_error_set( |
2901 | | error, |
2902 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
2903 | | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
2904 | | "%s: invalid size value exceeds maximum.", |
2905 | | function ); |
2906 | | |
2907 | | return( -1 ); |
2908 | | } |
2909 | | #if defined( __BORLANDC__ ) && __BORLANDC__ <= 0x0520 |
2910 | | large_integer_offset.QuadPart = (LONGLONG) size; |
2911 | | #else |
2912 | | large_integer_offset.LowPart = (DWORD) ( 0x0ffffffffUL & size ); |
2913 | | large_integer_offset.HighPart = (LONG) ( size >> 32 ); |
2914 | | #endif |
2915 | | |
2916 | | #if ( WINVER <= 0x0500 ) |
2917 | | if( libcfile_SetFilePointerEx( |
2918 | | internal_file->handle, |
2919 | | large_integer_offset, |
2920 | | &large_integer_offset, |
2921 | | FILE_BEGIN ) == 0 ) |
2922 | | #else |
2923 | | if( SetFilePointerEx( |
2924 | | internal_file->handle, |
2925 | | large_integer_offset, |
2926 | | &large_integer_offset, |
2927 | | FILE_BEGIN ) == 0 ) |
2928 | | #endif |
2929 | | { |
2930 | | error_code = GetLastError(); |
2931 | | |
2932 | | libcerror_system_set_error( |
2933 | | error, |
2934 | | LIBCERROR_ERROR_DOMAIN_IO, |
2935 | | LIBCERROR_IO_ERROR_SEEK_FAILED, |
2936 | | error_code, |
2937 | | "%s: unable to seek offset in file.", |
2938 | | function ); |
2939 | | |
2940 | | return( -1 ); |
2941 | | } |
2942 | | #if defined( __BORLANDC__ ) && __BORLANDC__ <= 0x0520 |
2943 | | offset = (off64_t) large_integer_offset.QuadPart; |
2944 | | #else |
2945 | | offset = ( (off64_t) large_integer_offset.HighPart << 32 ) + large_integer_offset.LowPart; |
2946 | | #endif |
2947 | | |
2948 | | if( offset < 0 ) |
2949 | | { |
2950 | | libcerror_error_set( |
2951 | | error, |
2952 | | LIBCERROR_ERROR_DOMAIN_IO, |
2953 | | LIBCERROR_IO_ERROR_SEEK_FAILED, |
2954 | | "%s: invalid offset: %" PRIi64 " returned.", |
2955 | | function, |
2956 | | offset ); |
2957 | | |
2958 | | return( -1 ); |
2959 | | } |
2960 | | internal_file->current_offset = offset; |
2961 | | |
2962 | | #if ( WINVER <= 0x0500 ) |
2963 | | if( libcfile_SetEndOfFile( |
2964 | | internal_file->handle ) == 0 ) |
2965 | | #else |
2966 | | if( SetEndOfFile( |
2967 | | internal_file->handle ) == 0 ) |
2968 | | #endif |
2969 | | { |
2970 | | error_code = GetLastError(); |
2971 | | |
2972 | | libcerror_system_set_error( |
2973 | | error, |
2974 | | LIBCERROR_ERROR_DOMAIN_IO, |
2975 | | LIBCERROR_IO_ERROR_SEEK_FAILED, |
2976 | | error_code, |
2977 | | "%s: unable to resize file.", |
2978 | | function ); |
2979 | | |
2980 | | return( -1 ); |
2981 | | } |
2982 | | return( 1 ); |
2983 | | } |
2984 | | |
2985 | | #elif defined( HAVE_FTRUNCATE ) |
2986 | | |
2987 | | /* Resizes the file |
2988 | | * This function uses the POSIX truncate function or equivalent |
2989 | | * Returns 1 if successful or -1 on error |
2990 | | */ |
2991 | | int libcfile_file_resize( |
2992 | | libcfile_file_t *file, |
2993 | | size64_t size, |
2994 | | libcerror_error_t **error ) |
2995 | 0 | { |
2996 | 0 | libcfile_internal_file_t *internal_file = NULL; |
2997 | 0 | static char *function = "libcfile_file_resize"; |
2998 | 0 | off_t offset = 0; |
2999 | |
|
3000 | 0 | if( file == NULL ) |
3001 | 0 | { |
3002 | 0 | libcerror_error_set( |
3003 | 0 | error, |
3004 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3005 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3006 | 0 | "%s: invalid file.", |
3007 | 0 | function ); |
3008 | |
|
3009 | 0 | return( -1 ); |
3010 | 0 | } |
3011 | 0 | internal_file = (libcfile_internal_file_t *) file; |
3012 | |
|
3013 | 0 | if( internal_file->descriptor == -1 ) |
3014 | 0 | { |
3015 | 0 | libcerror_error_set( |
3016 | 0 | error, |
3017 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3018 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
3019 | 0 | "%s: invalid file - missing descriptor.", |
3020 | 0 | function ); |
3021 | |
|
3022 | 0 | return( -1 ); |
3023 | 0 | } |
3024 | 0 | #if SIZEOF_OFF_T >= 8 |
3025 | 0 | if( size > (size64_t) INT64_MAX ) |
3026 | | #else |
3027 | | if( size > (size64_t) INT32_MAX ) |
3028 | | #endif |
3029 | 0 | { |
3030 | 0 | libcerror_error_set( |
3031 | 0 | error, |
3032 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3033 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
3034 | 0 | "%s: invalid size value exceeds maximum.", |
3035 | 0 | function ); |
3036 | |
|
3037 | 0 | return( -1 ); |
3038 | 0 | } |
3039 | 0 | if( ftruncate( |
3040 | 0 | internal_file->descriptor, |
3041 | 0 | (off_t) size ) != 0 ) |
3042 | 0 | { |
3043 | 0 | libcerror_system_set_error( |
3044 | 0 | error, |
3045 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
3046 | 0 | LIBCERROR_IO_ERROR_GENERIC, |
3047 | 0 | errno, |
3048 | 0 | "%s: unable to resize file.", |
3049 | 0 | function ); |
3050 | |
|
3051 | 0 | return( -1 ); |
3052 | 0 | } |
3053 | 0 | offset = lseek( |
3054 | 0 | internal_file->descriptor, |
3055 | 0 | 0, |
3056 | 0 | SEEK_CUR ); |
3057 | |
|
3058 | 0 | if( offset < 0 ) |
3059 | 0 | { |
3060 | 0 | libcerror_system_set_error( |
3061 | 0 | error, |
3062 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
3063 | 0 | LIBCERROR_IO_ERROR_SEEK_FAILED, |
3064 | 0 | errno, |
3065 | 0 | "%s: unable to seek offset in file.", |
3066 | 0 | function ); |
3067 | |
|
3068 | 0 | return( -1 ); |
3069 | 0 | } |
3070 | 0 | internal_file->current_offset = (off64_t) offset; |
3071 | |
|
3072 | 0 | return( 1 ); |
3073 | 0 | } |
3074 | | |
3075 | | #else |
3076 | | #error Missing file truncate function |
3077 | | #endif |
3078 | | |
3079 | | /* Checks if the file is open |
3080 | | * Returns 1 if open, 0 if not or -1 on error |
3081 | | */ |
3082 | | int libcfile_file_is_open( |
3083 | | libcfile_file_t *file, |
3084 | | libcerror_error_t **error ) |
3085 | 0 | { |
3086 | 0 | libcfile_internal_file_t *internal_file = NULL; |
3087 | 0 | static char *function = "libcfile_file_is_open"; |
3088 | |
|
3089 | 0 | if( file == NULL ) |
3090 | 0 | { |
3091 | 0 | libcerror_error_set( |
3092 | 0 | error, |
3093 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3094 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3095 | 0 | "%s: invalid file.", |
3096 | 0 | function ); |
3097 | |
|
3098 | 0 | return( -1 ); |
3099 | 0 | } |
3100 | 0 | internal_file = (libcfile_internal_file_t *) file; |
3101 | |
|
3102 | | #if defined( WINAPI ) |
3103 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
3104 | | #else |
3105 | 0 | if( internal_file->descriptor == -1 ) |
3106 | 0 | #endif |
3107 | 0 | { |
3108 | 0 | return( 0 ); |
3109 | 0 | } |
3110 | 0 | return( 1 ); |
3111 | 0 | } |
3112 | | |
3113 | | /* Retrieves the current offset in the file |
3114 | | * Returns 1 if successful or -1 on error |
3115 | | */ |
3116 | | int libcfile_file_get_offset( |
3117 | | libcfile_file_t *file, |
3118 | | off64_t *offset, |
3119 | | libcerror_error_t **error ) |
3120 | 0 | { |
3121 | 0 | libcfile_internal_file_t *internal_file = NULL; |
3122 | 0 | static char *function = "libcfile_file_get_offset"; |
3123 | |
|
3124 | 0 | if( file == NULL ) |
3125 | 0 | { |
3126 | 0 | libcerror_error_set( |
3127 | 0 | error, |
3128 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3129 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3130 | 0 | "%s: invalid file.", |
3131 | 0 | function ); |
3132 | |
|
3133 | 0 | return( -1 ); |
3134 | 0 | } |
3135 | 0 | internal_file = (libcfile_internal_file_t *) file; |
3136 | |
|
3137 | | #if defined( WINAPI ) |
3138 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
3139 | | { |
3140 | | libcerror_error_set( |
3141 | | error, |
3142 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3143 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
3144 | | "%s: invalid file - missing handle.", |
3145 | | function ); |
3146 | | |
3147 | | return( -1 ); |
3148 | | } |
3149 | | #else |
3150 | 0 | if( internal_file->descriptor == -1 ) |
3151 | 0 | { |
3152 | 0 | libcerror_error_set( |
3153 | 0 | error, |
3154 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3155 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
3156 | 0 | "%s: invalid file - missing descriptor.", |
3157 | 0 | function ); |
3158 | |
|
3159 | 0 | return( -1 ); |
3160 | 0 | } |
3161 | 0 | #endif |
3162 | 0 | if( offset == NULL ) |
3163 | 0 | { |
3164 | 0 | libcerror_error_set( |
3165 | 0 | error, |
3166 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3167 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3168 | 0 | "%s: invalid offset.", |
3169 | 0 | function ); |
3170 | |
|
3171 | 0 | return( -1 ); |
3172 | 0 | } |
3173 | 0 | *offset = internal_file->current_offset; |
3174 | |
|
3175 | 0 | return( 1 ); |
3176 | 0 | } |
3177 | | |
3178 | | #if defined( WINAPI ) |
3179 | | |
3180 | | #if !defined( IOCTL_DISK_GET_LENGTH_INFO ) |
3181 | | #define IOCTL_DISK_GET_LENGTH_INFO \ |
3182 | | CTL_CODE( IOCTL_DISK_BASE, 0x0017, METHOD_BUFFERED, FILE_READ_ACCESS ) |
3183 | | |
3184 | | typedef struct |
3185 | | { |
3186 | | LARGE_INTEGER Length; |
3187 | | } |
3188 | | GET_LENGTH_INFORMATION; |
3189 | | |
3190 | | #endif /* !defined( IOCTL_DISK_GET_LENGTH_INFO ) */ |
3191 | | |
3192 | | /* Retrieves the size of the file |
3193 | | * This function uses the WINAPI function for Windows XP (0x0501) or later |
3194 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
3195 | | * Returns 1 if successful or -1 on error |
3196 | | */ |
3197 | | int libcfile_internal_file_get_size( |
3198 | | libcfile_internal_file_t *internal_file, |
3199 | | size64_t *size, |
3200 | | libcerror_error_t **error ) |
3201 | | { |
3202 | | DISK_GEOMETRY disk_geometry; |
3203 | | GET_LENGTH_INFORMATION length_information; |
3204 | | |
3205 | | static char *function = "libcfile_internal_file_get_size"; |
3206 | | LARGE_INTEGER large_integer_size = LIBCFILE_LARGE_INTEGER_ZERO; |
3207 | | size_t read_count = 0; |
3208 | | uint32_t error_code = 0; |
3209 | | int result = 0; |
3210 | | |
3211 | | if( internal_file == NULL ) |
3212 | | { |
3213 | | libcerror_error_set( |
3214 | | error, |
3215 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3216 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3217 | | "%s: invalid file.", |
3218 | | function ); |
3219 | | |
3220 | | return( -1 ); |
3221 | | } |
3222 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
3223 | | { |
3224 | | libcerror_error_set( |
3225 | | error, |
3226 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3227 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
3228 | | "%s: invalid file - missing handle.", |
3229 | | function ); |
3230 | | |
3231 | | return( -1 ); |
3232 | | } |
3233 | | if( size == NULL ) |
3234 | | { |
3235 | | libcerror_error_set( |
3236 | | error, |
3237 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3238 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3239 | | "%s: invalid size.", |
3240 | | function ); |
3241 | | |
3242 | | return( -1 ); |
3243 | | } |
3244 | | result = libcfile_file_is_device( |
3245 | | (libcfile_file_t *) internal_file, |
3246 | | error ); |
3247 | | |
3248 | | if( result == -1 ) |
3249 | | { |
3250 | | libcerror_error_set( |
3251 | | error, |
3252 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3253 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
3254 | | "%s: unable to determine if file is a device.", |
3255 | | function ); |
3256 | | |
3257 | | return( -1 ); |
3258 | | } |
3259 | | else if( result != 0 ) |
3260 | | { |
3261 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
3262 | | internal_file, |
3263 | | IOCTL_DISK_GET_LENGTH_INFO, |
3264 | | NULL, |
3265 | | 0, |
3266 | | (uint8_t *) &length_information, |
3267 | | sizeof( GET_LENGTH_INFORMATION ), |
3268 | | &error_code, |
3269 | | error ); |
3270 | | |
3271 | | if( read_count == -1 ) |
3272 | | { |
3273 | | libcerror_error_set( |
3274 | | error, |
3275 | | LIBCERROR_ERROR_DOMAIN_IO, |
3276 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
3277 | | "%s: unable to query device for: IOCTL_DISK_GET_LENGTH_INFO.", |
3278 | | function ); |
3279 | | |
3280 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3281 | | if( libcnotify_verbose != 0 ) |
3282 | | { |
3283 | | if( ( error != NULL ) |
3284 | | && ( *error != NULL ) ) |
3285 | | { |
3286 | | libcnotify_print_error_backtrace( |
3287 | | *error ); |
3288 | | } |
3289 | | } |
3290 | | #endif |
3291 | | libcerror_error_free( |
3292 | | error ); |
3293 | | |
3294 | | if( error_code == ERROR_NOT_SUPPORTED ) |
3295 | | { |
3296 | | /* A floppy device does not support IOCTL_DISK_GET_LENGTH_INFO |
3297 | | */ |
3298 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
3299 | | internal_file, |
3300 | | IOCTL_DISK_GET_DRIVE_GEOMETRY, |
3301 | | NULL, |
3302 | | 0, |
3303 | | (uint8_t *) &disk_geometry, |
3304 | | sizeof( DISK_GEOMETRY ), |
3305 | | &error_code, |
3306 | | error ); |
3307 | | |
3308 | | if( read_count == -1 ) |
3309 | | { |
3310 | | libcerror_error_set( |
3311 | | error, |
3312 | | LIBCERROR_ERROR_DOMAIN_IO, |
3313 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
3314 | | "%s: unable to query device for: IOCTL_DISK_GET_DRIVE_GEOMETRY.", |
3315 | | function ); |
3316 | | |
3317 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3318 | | if( libcnotify_verbose != 0 ) |
3319 | | { |
3320 | | if( ( error != NULL ) |
3321 | | && ( *error != NULL ) ) |
3322 | | { |
3323 | | libcnotify_print_error_backtrace( |
3324 | | *error ); |
3325 | | } |
3326 | | } |
3327 | | #endif |
3328 | | libcerror_error_free( |
3329 | | error ); |
3330 | | } |
3331 | | else |
3332 | | { |
3333 | | *size = disk_geometry.Cylinders.QuadPart; |
3334 | | *size *= disk_geometry.TracksPerCylinder; |
3335 | | *size *= disk_geometry.SectorsPerTrack; |
3336 | | *size *= disk_geometry.BytesPerSector; |
3337 | | } |
3338 | | } |
3339 | | } |
3340 | | else |
3341 | | { |
3342 | | *size = (size64_t) length_information.Length.HighPart << 32; |
3343 | | *size += (uint32_t) length_information.Length.LowPart; |
3344 | | } |
3345 | | } |
3346 | | else |
3347 | | { |
3348 | | #if ( WINVER <= 0x0500 ) |
3349 | | if( libcfile_GetFileSizeEx( |
3350 | | internal_file->handle, |
3351 | | &large_integer_size ) == 0 ) |
3352 | | #else |
3353 | | if( GetFileSizeEx( |
3354 | | internal_file->handle, |
3355 | | &large_integer_size ) == 0 ) |
3356 | | #endif |
3357 | | { |
3358 | | libcerror_error_set( |
3359 | | error, |
3360 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3361 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
3362 | | "%s: unable to retrieve file size.", |
3363 | | function ); |
3364 | | |
3365 | | return( -1 ); |
3366 | | } |
3367 | | #if defined( __BORLANDC__ ) && __BORLANDC__ <= 0x520 |
3368 | | *size = (size64_t) large_integer_size.QuadPart; |
3369 | | #else |
3370 | | *size = (size64_t) large_integer_size.HighPart << 32; |
3371 | | *size += (uint32_t) large_integer_size.LowPart; |
3372 | | #endif |
3373 | | } |
3374 | | return( 1 ); |
3375 | | } |
3376 | | |
3377 | | #elif defined( HAVE_FSTAT ) |
3378 | | |
3379 | | /* Retrieves the size of the file |
3380 | | * This function uses the POSIX fstat function or equivalent |
3381 | | * Returns 1 if successful or -1 on error |
3382 | | */ |
3383 | | int libcfile_internal_file_get_size( |
3384 | | libcfile_internal_file_t *internal_file, |
3385 | | size64_t *size, |
3386 | | libcerror_error_t **error ) |
3387 | 0 | { |
3388 | 0 | struct stat file_statistics; |
3389 | |
|
3390 | 0 | static char *function = "libcfile_internal_file_get_size"; |
3391 | 0 | size64_t safe_size = 0; |
3392 | 0 | ssize_t read_count = 0; |
3393 | 0 | off64_t current_offset = 0; |
3394 | 0 | off64_t offset = 0; |
3395 | |
|
3396 | 0 | #if defined( BLKGETSIZE64 ) || defined( DIOCGMEDIASIZE ) || defined( DIOCGDINFO ) || ( defined( DKIOCGETBLOCKCOUNT ) && defined( DKIOCGETBLOCKSIZE ) ) |
3397 | 0 | uint32_t error_code = 0; |
3398 | 0 | #endif |
3399 | |
|
3400 | | #if !defined( DIOCGMEDIASIZE ) && defined( DIOCGDINFO ) |
3401 | | struct disklabel disk_label; |
3402 | | #endif |
3403 | | #if defined( DKIOCGETBLOCKCOUNT ) && defined( DKIOCGETBLOCKSIZE ) |
3404 | | uint64_t block_count = 0; |
3405 | | uint32_t bytes_per_sector = 0; |
3406 | | #endif |
3407 | |
|
3408 | 0 | if( internal_file == NULL ) |
3409 | 0 | { |
3410 | 0 | libcerror_error_set( |
3411 | 0 | error, |
3412 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3413 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3414 | 0 | "%s: invalid file.", |
3415 | 0 | function ); |
3416 | |
|
3417 | 0 | return( -1 ); |
3418 | 0 | } |
3419 | 0 | if( internal_file->descriptor == -1 ) |
3420 | 0 | { |
3421 | 0 | libcerror_error_set( |
3422 | 0 | error, |
3423 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3424 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
3425 | 0 | "%s: invalid file - missing descriptor.", |
3426 | 0 | function ); |
3427 | |
|
3428 | 0 | return( -1 ); |
3429 | 0 | } |
3430 | 0 | if( size == NULL ) |
3431 | 0 | { |
3432 | 0 | libcerror_error_set( |
3433 | 0 | error, |
3434 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3435 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3436 | 0 | "%s: invalid size.", |
3437 | 0 | function ); |
3438 | |
|
3439 | 0 | return( -1 ); |
3440 | 0 | } |
3441 | 0 | if( memory_set( |
3442 | 0 | &file_statistics, |
3443 | 0 | 0, |
3444 | 0 | sizeof( struct stat ) ) == NULL ) |
3445 | 0 | { |
3446 | 0 | libcerror_error_set( |
3447 | 0 | error, |
3448 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
3449 | 0 | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
3450 | 0 | "%s: unable to clear file statistics.", |
3451 | 0 | function ); |
3452 | |
|
3453 | 0 | return( -1 ); |
3454 | 0 | } |
3455 | 0 | if( fstat( |
3456 | 0 | internal_file->descriptor, |
3457 | 0 | &file_statistics ) != 0 ) |
3458 | 0 | { |
3459 | 0 | libcerror_error_set( |
3460 | 0 | error, |
3461 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3462 | 0 | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
3463 | 0 | "%s: unable to retrieve file statistics.", |
3464 | 0 | function ); |
3465 | |
|
3466 | 0 | return( -1 ); |
3467 | 0 | } |
3468 | 0 | if( S_ISBLK( file_statistics.st_mode ) |
3469 | 0 | || S_ISCHR( file_statistics.st_mode ) ) |
3470 | 0 | { |
3471 | 0 | #if defined( BLKGETSIZE64 ) |
3472 | 0 | read_count = libcfile_internal_file_io_control_read_with_error_code( |
3473 | 0 | internal_file, |
3474 | 0 | (uint32_t) BLKGETSIZE64, |
3475 | 0 | NULL, |
3476 | 0 | 0, |
3477 | 0 | (uint8_t *) &safe_size, |
3478 | 0 | 8, |
3479 | 0 | &error_code, |
3480 | 0 | error ); |
3481 | |
|
3482 | 0 | if( read_count == -1 ) |
3483 | 0 | { |
3484 | 0 | libcerror_error_set( |
3485 | 0 | error, |
3486 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
3487 | 0 | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
3488 | 0 | "%s: unable to query device for: BLKGETSIZE64.", |
3489 | 0 | function ); |
3490 | |
|
3491 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3492 | | if( libcnotify_verbose != 0 ) |
3493 | | { |
3494 | | if( ( error != NULL ) |
3495 | | && ( *error != NULL ) ) |
3496 | | { |
3497 | | libcnotify_print_error_backtrace( |
3498 | | *error ); |
3499 | | } |
3500 | | } |
3501 | | #endif |
3502 | 0 | libcerror_error_free( |
3503 | 0 | error ); |
3504 | 0 | } |
3505 | | #elif defined( DIOCGMEDIASIZE ) |
3506 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
3507 | | internal_file, |
3508 | | (uint32_t) DIOCGMEDIASIZE, |
3509 | | NULL, |
3510 | | 0, |
3511 | | (uint8_t *) &safe_size, |
3512 | | 8, |
3513 | | &error_code, |
3514 | | error ); |
3515 | | |
3516 | | if( read_count == -1 ) |
3517 | | { |
3518 | | libcerror_error_set( |
3519 | | error, |
3520 | | LIBCERROR_ERROR_DOMAIN_IO, |
3521 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
3522 | | "%s: unable to query device for: DIOCGMEDIASIZE.", |
3523 | | function ); |
3524 | | |
3525 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3526 | | if( libcnotify_verbose != 0 ) |
3527 | | { |
3528 | | if( ( error != NULL ) |
3529 | | && ( *error != NULL ) ) |
3530 | | { |
3531 | | libcnotify_print_error_backtrace( |
3532 | | *error ); |
3533 | | } |
3534 | | } |
3535 | | #endif |
3536 | | libcerror_error_free( |
3537 | | error ); |
3538 | | } |
3539 | | #elif defined( DIOCGDINFO ) |
3540 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
3541 | | internal_file, |
3542 | | (uint32_t) DIOCGDINFO, |
3543 | | NULL, |
3544 | | 0, |
3545 | | (uint8_t *) &disk_label, |
3546 | | sizeof( struct disklabel ), |
3547 | | &error_code, |
3548 | | error ); |
3549 | | |
3550 | | if( read_count == -1 ) |
3551 | | { |
3552 | | libcerror_error_set( |
3553 | | error, |
3554 | | LIBCERROR_ERROR_DOMAIN_IO, |
3555 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
3556 | | "%s: unable to query device for: DIOCGDINFO.", |
3557 | | function ); |
3558 | | |
3559 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3560 | | if( libcnotify_verbose != 0 ) |
3561 | | { |
3562 | | if( ( error != NULL ) |
3563 | | && ( *error != NULL ) ) |
3564 | | { |
3565 | | libcnotify_print_error_backtrace( |
3566 | | *error ); |
3567 | | } |
3568 | | } |
3569 | | #endif |
3570 | | libcerror_error_free( |
3571 | | error ); |
3572 | | } |
3573 | | else |
3574 | | { |
3575 | | safe_size = disk_label.d_secperunit * disk_label.d_secsize; |
3576 | | } |
3577 | | #elif defined( DKIOCGETBLOCKCOUNT ) && defined( DKIOCGETBLOCKSIZE ) |
3578 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
3579 | | internal_file, |
3580 | | (uint32_t) DKIOCGETBLOCKSIZE, |
3581 | | NULL, |
3582 | | 0, |
3583 | | (uint8_t *) &bytes_per_sector, |
3584 | | 4, |
3585 | | &error_code, |
3586 | | error ); |
3587 | | |
3588 | | if( read_count == -1 ) |
3589 | | { |
3590 | | libcerror_error_set( |
3591 | | error, |
3592 | | LIBCERROR_ERROR_DOMAIN_IO, |
3593 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
3594 | | "%s: unable to query device for: DKIOCGETBLOCKSIZE.", |
3595 | | function ); |
3596 | | |
3597 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3598 | | if( libcnotify_verbose != 0 ) |
3599 | | { |
3600 | | if( ( error != NULL ) |
3601 | | && ( *error != NULL ) ) |
3602 | | { |
3603 | | libcnotify_print_error_backtrace( |
3604 | | *error ); |
3605 | | } |
3606 | | } |
3607 | | #endif |
3608 | | libcerror_error_free( |
3609 | | error ); |
3610 | | } |
3611 | | else |
3612 | | { |
3613 | | read_count = libcfile_internal_file_io_control_read_with_error_code( |
3614 | | internal_file, |
3615 | | (uint32_t) DKIOCGETBLOCKCOUNT, |
3616 | | NULL, |
3617 | | 0, |
3618 | | (uint8_t *) &block_count, |
3619 | | 4, |
3620 | | &error_code, |
3621 | | error ); |
3622 | | |
3623 | | if( read_count == -1 ) |
3624 | | { |
3625 | | libcerror_error_set( |
3626 | | error, |
3627 | | LIBCERROR_ERROR_DOMAIN_IO, |
3628 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
3629 | | "%s: unable to query device for: DKIOCGETBLOCKCOUNT.", |
3630 | | function ); |
3631 | | |
3632 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3633 | | if( libcnotify_verbose != 0 ) |
3634 | | { |
3635 | | if( ( error != NULL ) |
3636 | | && ( *error != NULL ) ) |
3637 | | { |
3638 | | libcnotify_print_error_backtrace( |
3639 | | *error ); |
3640 | | } |
3641 | | } |
3642 | | #endif |
3643 | | libcerror_error_free( |
3644 | | error ); |
3645 | | } |
3646 | | else |
3647 | | { |
3648 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3649 | | if( libcnotify_verbose != 0 ) |
3650 | | { |
3651 | | libcnotify_printf( |
3652 | | "%s: block size: %" PRIu32 " block count: %" PRIu64 " ", |
3653 | | function, |
3654 | | bytes_per_sector, |
3655 | | block_count ); |
3656 | | } |
3657 | | #endif |
3658 | | safe_size = (size64_t) ( block_count * bytes_per_sector ); |
3659 | | } |
3660 | | } |
3661 | | #endif /* defined( BLKGETSIZE64 ) || defined( DIOCGMEDIASIZE ) || defined( DIOCGDINFO ) || ( defined( DKIOCGETBLOCKCOUNT ) && defined( DKIOCGETBLOCKSIZE ) ) */ |
3662 | |
|
3663 | 0 | if( read_count <= 0 ) |
3664 | 0 | { |
3665 | | /* Try to seek the end of the file and determine the size based on the offset |
3666 | | */ |
3667 | 0 | if( libcfile_file_get_offset( |
3668 | 0 | (libcfile_file_t *) internal_file, |
3669 | 0 | ¤t_offset, |
3670 | 0 | error ) != 1 ) |
3671 | 0 | { |
3672 | 0 | libcerror_error_set( |
3673 | 0 | error, |
3674 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3675 | 0 | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
3676 | 0 | "%s: unable to retrieve current offset.", |
3677 | 0 | function ); |
3678 | |
|
3679 | 0 | return( -1 ); |
3680 | 0 | } |
3681 | 0 | offset = libcfile_file_seek_offset( |
3682 | 0 | (libcfile_file_t *) internal_file, |
3683 | 0 | 0, |
3684 | 0 | SEEK_END, |
3685 | 0 | error ); |
3686 | |
|
3687 | 0 | if( offset == -1 ) |
3688 | 0 | { |
3689 | 0 | libcerror_error_set( |
3690 | 0 | error, |
3691 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
3692 | 0 | LIBCERROR_IO_ERROR_SEEK_FAILED, |
3693 | 0 | "%s: unable to seek end of file.", |
3694 | 0 | function ); |
3695 | |
|
3696 | 0 | return( -1 ); |
3697 | 0 | } |
3698 | 0 | safe_size = (size64_t) offset; |
3699 | |
|
3700 | 0 | offset = libcfile_file_seek_offset( |
3701 | 0 | (libcfile_file_t *) internal_file, |
3702 | 0 | current_offset, |
3703 | 0 | SEEK_SET, |
3704 | 0 | error ); |
3705 | |
|
3706 | 0 | if( offset == -1 ) |
3707 | 0 | { |
3708 | 0 | libcerror_error_set( |
3709 | 0 | error, |
3710 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
3711 | 0 | LIBCERROR_IO_ERROR_SEEK_FAILED, |
3712 | 0 | "%s: unable to seek offset: %" PRIi64 ".", |
3713 | 0 | function, |
3714 | 0 | current_offset ); |
3715 | |
|
3716 | 0 | return( -1 ); |
3717 | 0 | } |
3718 | 0 | } |
3719 | | #if defined( HAVE_DEBUG_OUTPUT ) |
3720 | | if( libcnotify_verbose != 0 ) |
3721 | | { |
3722 | | libcnotify_printf( |
3723 | | "%s: device media size: %" PRIu64 "\n", |
3724 | | function, |
3725 | | safe_size ); |
3726 | | } |
3727 | | #endif |
3728 | 0 | } |
3729 | 0 | else |
3730 | 0 | { |
3731 | 0 | safe_size = (size64_t) file_statistics.st_size; |
3732 | 0 | } |
3733 | 0 | *size = safe_size; |
3734 | |
|
3735 | 0 | return( 1 ); |
3736 | 0 | } |
3737 | | |
3738 | | #else |
3739 | | #error Missing file get size function |
3740 | | #endif |
3741 | | |
3742 | | /* Retrieves the size of the file |
3743 | | * Returns 1 if successful or -1 on error |
3744 | | */ |
3745 | | int libcfile_file_get_size( |
3746 | | libcfile_file_t *file, |
3747 | | size64_t *size, |
3748 | | libcerror_error_t **error ) |
3749 | 0 | { |
3750 | 0 | libcfile_internal_file_t *internal_file = NULL; |
3751 | 0 | static char *function = "libcfile_file_get_size"; |
3752 | |
|
3753 | 0 | if( file == NULL ) |
3754 | 0 | { |
3755 | 0 | libcerror_error_set( |
3756 | 0 | error, |
3757 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3758 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3759 | 0 | "%s: invalid file.", |
3760 | 0 | function ); |
3761 | |
|
3762 | 0 | return( -1 ); |
3763 | 0 | } |
3764 | 0 | internal_file = (libcfile_internal_file_t *) file; |
3765 | |
|
3766 | 0 | if( size == NULL ) |
3767 | 0 | { |
3768 | 0 | libcerror_error_set( |
3769 | 0 | error, |
3770 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3771 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3772 | 0 | "%s: invalid size.", |
3773 | 0 | function ); |
3774 | |
|
3775 | 0 | return( -1 ); |
3776 | 0 | } |
3777 | 0 | *size = internal_file->size; |
3778 | |
|
3779 | 0 | return( 1 ); |
3780 | 0 | } |
3781 | | |
3782 | | #if defined( WINAPI ) |
3783 | | |
3784 | | /* Determines if a file is a device |
3785 | | * This function uses the WINAPI function for Windows XP (0x0501) or later |
3786 | | * or tries to dynamically call the function for Windows 2000 (0x0500) or earlier |
3787 | | * Returns 1 if true, 0 if not or -1 on error |
3788 | | */ |
3789 | | int libcfile_file_is_device( |
3790 | | libcfile_file_t *file, |
3791 | | libcerror_error_t **error ) |
3792 | | { |
3793 | | libcfile_internal_file_t *internal_file = NULL; |
3794 | | static char *function = "libcfile_file_is_device"; |
3795 | | DWORD file_type = 0; |
3796 | | int result = 0; |
3797 | | |
3798 | | if( file == NULL ) |
3799 | | { |
3800 | | libcerror_error_set( |
3801 | | error, |
3802 | | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3803 | | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3804 | | "%s: invalid file.", |
3805 | | function ); |
3806 | | |
3807 | | return( -1 ); |
3808 | | } |
3809 | | internal_file = (libcfile_internal_file_t *) file; |
3810 | | |
3811 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
3812 | | { |
3813 | | libcerror_error_set( |
3814 | | error, |
3815 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3816 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
3817 | | "%s: invalid file - missing handle.", |
3818 | | function ); |
3819 | | |
3820 | | return( -1 ); |
3821 | | } |
3822 | | /* TODO what about FILE_ATTRIBUTE_DEVICE using GetFileAttributes() */ |
3823 | | |
3824 | | /* Use the GetFileType function to rule out certain file types |
3825 | | * like pipes, sockets, etc. |
3826 | | */ |
3827 | | #if ( WINVER <= 0x0500 ) |
3828 | | file_type = libcfile_GetFileType( |
3829 | | internal_file->handle ); |
3830 | | #else |
3831 | | file_type = GetFileType( |
3832 | | internal_file->handle ); |
3833 | | #endif |
3834 | | |
3835 | | if( file_type == FILE_TYPE_UNKNOWN ) |
3836 | | { |
3837 | | libcerror_error_set( |
3838 | | error, |
3839 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3840 | | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
3841 | | "%s: unable to determine file type.", |
3842 | | function ); |
3843 | | |
3844 | | return( -1 ); |
3845 | | } |
3846 | | else if( file_type == FILE_TYPE_DISK ) |
3847 | | { |
3848 | | if( internal_file->is_device_filename ) |
3849 | | { |
3850 | | result = 1; |
3851 | | } |
3852 | | } |
3853 | | return( result ); |
3854 | | } |
3855 | | |
3856 | | #elif defined( HAVE_FSTAT ) |
3857 | | |
3858 | | /* Determines if a file is a device |
3859 | | * This function uses the POSIX fstat function or equivalent |
3860 | | * Returns 1 if true, 0 if not or -1 on error |
3861 | | */ |
3862 | | int libcfile_file_is_device( |
3863 | | libcfile_file_t *file, |
3864 | | libcerror_error_t **error ) |
3865 | 0 | { |
3866 | 0 | struct stat file_statistics; |
3867 | |
|
3868 | 0 | libcfile_internal_file_t *internal_file = NULL; |
3869 | 0 | static char *function = "libcfile_file_is_device"; |
3870 | 0 | int result = 0; |
3871 | |
|
3872 | 0 | if( file == NULL ) |
3873 | 0 | { |
3874 | 0 | libcerror_error_set( |
3875 | 0 | error, |
3876 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3877 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3878 | 0 | "%s: invalid file.", |
3879 | 0 | function ); |
3880 | |
|
3881 | 0 | return( -1 ); |
3882 | 0 | } |
3883 | 0 | internal_file = (libcfile_internal_file_t *) file; |
3884 | |
|
3885 | 0 | if( internal_file->descriptor == -1 ) |
3886 | 0 | { |
3887 | 0 | libcerror_error_set( |
3888 | 0 | error, |
3889 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3890 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
3891 | 0 | "%s: invalid file - missing descriptor.", |
3892 | 0 | function ); |
3893 | |
|
3894 | 0 | return( -1 ); |
3895 | 0 | } |
3896 | 0 | if( memory_set( |
3897 | 0 | &file_statistics, |
3898 | 0 | 0, |
3899 | 0 | sizeof( struct stat ) ) == NULL ) |
3900 | 0 | { |
3901 | 0 | libcerror_error_set( |
3902 | 0 | error, |
3903 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
3904 | 0 | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
3905 | 0 | "%s: unable to clear file statistics.", |
3906 | 0 | function ); |
3907 | |
|
3908 | 0 | return( -1 ); |
3909 | 0 | } |
3910 | 0 | if( fstat( |
3911 | 0 | internal_file->descriptor, |
3912 | 0 | &file_statistics ) != 0 ) |
3913 | 0 | { |
3914 | 0 | libcerror_error_set( |
3915 | 0 | error, |
3916 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3917 | 0 | LIBCERROR_RUNTIME_ERROR_GET_FAILED, |
3918 | 0 | "%s: unable to retrieve file statistics.", |
3919 | 0 | function ); |
3920 | |
|
3921 | 0 | return( -1 ); |
3922 | 0 | } |
3923 | 0 | if( S_ISBLK( file_statistics.st_mode ) |
3924 | 0 | || S_ISCHR( file_statistics.st_mode ) ) |
3925 | 0 | { |
3926 | 0 | result = 1; |
3927 | 0 | } |
3928 | 0 | return( result ); |
3929 | 0 | } |
3930 | | |
3931 | | #else |
3932 | | #error Missing file is device function |
3933 | | #endif |
3934 | | |
3935 | | #if defined( HAVE_IOCTL ) || defined( WINAPI ) |
3936 | | |
3937 | | /* Read data from a device file using IO control |
3938 | | * This function uses the POSIX ioctl function or WINAPI DeviceIoControl |
3939 | | * Returns the number of bytes read if successful or -1 on error |
3940 | | */ |
3941 | | ssize_t libcfile_internal_file_io_control_read_with_error_code( |
3942 | | libcfile_internal_file_t *internal_file, |
3943 | | uint32_t control_code, |
3944 | | uint8_t *control_data, |
3945 | | size_t control_data_size, |
3946 | | uint8_t *data, |
3947 | | size_t data_size, |
3948 | | uint32_t *error_code, |
3949 | | libcerror_error_t **error ) |
3950 | 0 | { |
3951 | 0 | static char *function = "libcfile_internal_file_io_control_read_with_error_code"; |
3952 | |
|
3953 | | #if defined( WINAPI ) |
3954 | | DWORD response_count = 0; |
3955 | | #endif |
3956 | |
|
3957 | 0 | if( internal_file == NULL ) |
3958 | 0 | { |
3959 | 0 | libcerror_error_set( |
3960 | 0 | error, |
3961 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
3962 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
3963 | 0 | "%s: invalid file.", |
3964 | 0 | function ); |
3965 | |
|
3966 | 0 | return( -1 ); |
3967 | 0 | } |
3968 | | #if defined( WINAPI ) |
3969 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
3970 | | { |
3971 | | libcerror_error_set( |
3972 | | error, |
3973 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3974 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
3975 | | "%s: invalid file - missing handle.", |
3976 | | function ); |
3977 | | |
3978 | | return( -1 ); |
3979 | | } |
3980 | | #else |
3981 | 0 | if( internal_file->descriptor == -1 ) |
3982 | 0 | { |
3983 | 0 | libcerror_error_set( |
3984 | 0 | error, |
3985 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
3986 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
3987 | 0 | "%s: invalid file - missing descriptor.", |
3988 | 0 | function ); |
3989 | |
|
3990 | 0 | return( -1 ); |
3991 | 0 | } |
3992 | 0 | #endif |
3993 | 0 | if( control_data == NULL ) |
3994 | 0 | { |
3995 | 0 | if( control_data_size != 0 ) |
3996 | 0 | { |
3997 | 0 | libcerror_error_set( |
3998 | 0 | error, |
3999 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4000 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
4001 | 0 | "%s: invalid control data size value exceeds maximum.", |
4002 | 0 | function ); |
4003 | |
|
4004 | 0 | return( -1 ); |
4005 | 0 | } |
4006 | 0 | } |
4007 | 0 | else |
4008 | 0 | { |
4009 | 0 | #if ( UINT32_MAX < SSIZE_MAX ) |
4010 | 0 | if( control_data_size > (size_t) UINT32_MAX ) |
4011 | | #else |
4012 | | if( control_data_size > (size_t) SSIZE_MAX ) |
4013 | | #endif |
4014 | 0 | { |
4015 | 0 | libcerror_error_set( |
4016 | 0 | error, |
4017 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4018 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
4019 | 0 | "%s: invalid control data size value exceeds maximum.", |
4020 | 0 | function ); |
4021 | |
|
4022 | 0 | return( -1 ); |
4023 | 0 | } |
4024 | 0 | } |
4025 | 0 | if( data == NULL ) |
4026 | 0 | { |
4027 | 0 | if( data_size != 0 ) |
4028 | 0 | { |
4029 | 0 | libcerror_error_set( |
4030 | 0 | error, |
4031 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4032 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
4033 | 0 | "%s: invalid data size value exceeds maximum.", |
4034 | 0 | function ); |
4035 | |
|
4036 | 0 | return( -1 ); |
4037 | 0 | } |
4038 | 0 | } |
4039 | 0 | else |
4040 | 0 | { |
4041 | 0 | #if ( UINT32_MAX < SSIZE_MAX ) |
4042 | 0 | if( data_size > (size_t) UINT32_MAX ) |
4043 | | #else |
4044 | | if( data_size > (size_t) SSIZE_MAX ) |
4045 | | #endif |
4046 | 0 | { |
4047 | 0 | libcerror_error_set( |
4048 | 0 | error, |
4049 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4050 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
4051 | 0 | "%s: invalid data size value exceeds maximum.", |
4052 | 0 | function ); |
4053 | |
|
4054 | 0 | return( -1 ); |
4055 | 0 | } |
4056 | 0 | } |
4057 | 0 | if( error_code == NULL ) |
4058 | 0 | { |
4059 | 0 | libcerror_error_set( |
4060 | 0 | error, |
4061 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4062 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
4063 | 0 | "%s: invalid error code.", |
4064 | 0 | function ); |
4065 | |
|
4066 | 0 | return( -1 ); |
4067 | 0 | } |
4068 | | #if defined( WINAPI ) |
4069 | | if( DeviceIoControl( |
4070 | | internal_file->handle, |
4071 | | (DWORD) control_code, |
4072 | | control_data, |
4073 | | (DWORD) control_data_size, |
4074 | | data, |
4075 | | (DWORD) data_size, |
4076 | | &response_count, |
4077 | | NULL ) == 0 ) |
4078 | | { |
4079 | | *error_code = (uint32_t) GetLastError(); |
4080 | | |
4081 | | libcerror_system_set_error( |
4082 | | error, |
4083 | | LIBCERROR_ERROR_DOMAIN_IO, |
4084 | | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
4085 | | *error_code, |
4086 | | "%s: unable to IO control device.", |
4087 | | function ); |
4088 | | |
4089 | | return( -1 ); |
4090 | | } |
4091 | | #if ( SSIZE_MAX < UINT32_MAX ) |
4092 | | if( response_count > (size_t) SSIZE_MAX ) |
4093 | | { |
4094 | | libcerror_error_set( |
4095 | | error, |
4096 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4097 | | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
4098 | | "%s: invalid response count value out of bounds.", |
4099 | | function ); |
4100 | | |
4101 | | return( -1 ); |
4102 | | } |
4103 | | #endif |
4104 | | return( (ssize_t) response_count ); |
4105 | | |
4106 | | #elif defined( HAVE_IOCTL ) |
4107 | 0 | if( control_data != NULL ) |
4108 | 0 | { |
4109 | 0 | libcerror_error_set( |
4110 | 0 | error, |
4111 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4112 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
4113 | 0 | "%s: unsupported control data.", |
4114 | 0 | function ); |
4115 | |
|
4116 | 0 | return( -1 ); |
4117 | 0 | } |
4118 | 0 | if( ioctl( |
4119 | 0 | internal_file->descriptor, |
4120 | 0 | (int) control_code, |
4121 | 0 | data ) == -1 ) |
4122 | 0 | { |
4123 | 0 | *error_code = (uint32_t) errno; |
4124 | |
|
4125 | 0 | libcerror_system_set_error( |
4126 | 0 | error, |
4127 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
4128 | 0 | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
4129 | 0 | *error_code, |
4130 | 0 | "%s: unable to IO control device.", |
4131 | 0 | function ); |
4132 | |
|
4133 | 0 | return( -1 ); |
4134 | 0 | } |
4135 | 0 | return( (size_t) data_size ); |
4136 | 0 | #endif |
4137 | 0 | } |
4138 | | |
4139 | | #else |
4140 | | #error Missing file IO control with data function |
4141 | | #endif |
4142 | | |
4143 | | /* Read data from a device file using IO control |
4144 | | * Returns the number of bytes read if successful or -1 on error |
4145 | | */ |
4146 | | ssize_t libcfile_file_io_control_read( |
4147 | | libcfile_file_t *file, |
4148 | | uint32_t control_code, |
4149 | | uint8_t *control_data, |
4150 | | size_t control_data_size, |
4151 | | uint8_t *data, |
4152 | | size_t data_size, |
4153 | | libcerror_error_t **error ) |
4154 | 0 | { |
4155 | 0 | libcfile_internal_file_t *internal_file = NULL; |
4156 | 0 | static char *function = "libcfile_file_io_control_read"; |
4157 | 0 | ssize_t read_count = 0; |
4158 | 0 | uint32_t error_code = 0; |
4159 | |
|
4160 | 0 | if( file == NULL ) |
4161 | 0 | { |
4162 | 0 | libcerror_error_set( |
4163 | 0 | error, |
4164 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4165 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
4166 | 0 | "%s: invalid file.", |
4167 | 0 | function ); |
4168 | |
|
4169 | 0 | return( -1 ); |
4170 | 0 | } |
4171 | 0 | internal_file = (libcfile_internal_file_t *) file; |
4172 | |
|
4173 | 0 | read_count = libcfile_internal_file_io_control_read_with_error_code( |
4174 | 0 | internal_file, |
4175 | 0 | control_code, |
4176 | 0 | control_data, |
4177 | 0 | control_data_size, |
4178 | 0 | data, |
4179 | 0 | data_size, |
4180 | 0 | &error_code, |
4181 | 0 | error ); |
4182 | |
|
4183 | 0 | if( read_count == -1 ) |
4184 | 0 | { |
4185 | 0 | libcerror_error_set( |
4186 | 0 | error, |
4187 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
4188 | 0 | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
4189 | 0 | "%s: unable to to IO control device.", |
4190 | 0 | function ); |
4191 | |
|
4192 | 0 | return( -1 ); |
4193 | 0 | } |
4194 | 0 | return( read_count ); |
4195 | 0 | } |
4196 | | |
4197 | | /* Read data from a device file using IO control |
4198 | | * Returns the number of bytes read if successful or -1 on error |
4199 | | */ |
4200 | | ssize_t libcfile_file_io_control_read_with_error_code( |
4201 | | libcfile_file_t *file, |
4202 | | uint32_t control_code, |
4203 | | uint8_t *control_data, |
4204 | | size_t control_data_size, |
4205 | | uint8_t *data, |
4206 | | size_t data_size, |
4207 | | uint32_t *error_code, |
4208 | | libcerror_error_t **error ) |
4209 | 0 | { |
4210 | 0 | libcfile_internal_file_t *internal_file = NULL; |
4211 | 0 | static char *function = "libcfile_file_io_control_read_with_error_code"; |
4212 | 0 | ssize_t read_count = 0; |
4213 | |
|
4214 | 0 | if( file == NULL ) |
4215 | 0 | { |
4216 | 0 | libcerror_error_set( |
4217 | 0 | error, |
4218 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4219 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
4220 | 0 | "%s: invalid file.", |
4221 | 0 | function ); |
4222 | |
|
4223 | 0 | return( -1 ); |
4224 | 0 | } |
4225 | 0 | internal_file = (libcfile_internal_file_t *) file; |
4226 | |
|
4227 | 0 | read_count = libcfile_internal_file_io_control_read_with_error_code( |
4228 | 0 | internal_file, |
4229 | 0 | control_code, |
4230 | 0 | control_data, |
4231 | 0 | control_data_size, |
4232 | 0 | data, |
4233 | 0 | data_size, |
4234 | 0 | error_code, |
4235 | 0 | error ); |
4236 | |
|
4237 | 0 | if( read_count == -1 ) |
4238 | 0 | { |
4239 | 0 | libcerror_error_set( |
4240 | 0 | error, |
4241 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
4242 | 0 | LIBCERROR_IO_ERROR_IOCTL_FAILED, |
4243 | 0 | "%s: unable to to IO control device.", |
4244 | 0 | function ); |
4245 | |
|
4246 | 0 | return( -1 ); |
4247 | 0 | } |
4248 | 0 | return( read_count ); |
4249 | 0 | } |
4250 | | |
4251 | | /* On some versions of Linux the FADVISE definions seem to be missing from fcntl.h |
4252 | | */ |
4253 | | #if defined( HAVE_POSIX_FADVISE ) && !defined( WINAPI ) |
4254 | | |
4255 | | #if !defined( POSIX_FADV_NORMAL ) |
4256 | | #define POSIX_FADV_NORMAL 0 |
4257 | | #endif |
4258 | | |
4259 | | #if !defined( POSIX_FADV_RANDOM ) |
4260 | | #define POSIX_FADV_RANDOM 1 |
4261 | | #endif |
4262 | | |
4263 | | #if !defined( POSIX_FADV_SEQUENTIAL ) |
4264 | | #define POSIX_FADV_SEQUENTIAL 2 |
4265 | | #endif |
4266 | | |
4267 | | #endif /* #if defined( HAVE_POSIX_FADVISE ) && !defined( WINAPI ) */ |
4268 | | |
4269 | | /* Sets the expected access behavior so the system can optimize the access |
4270 | | * Returns 1 if successful or -1 on error |
4271 | | */ |
4272 | | int libcfile_file_set_access_behavior( |
4273 | | libcfile_file_t *file, |
4274 | | int access_behavior, |
4275 | | libcerror_error_t **error ) |
4276 | 0 | { |
4277 | 0 | libcfile_internal_file_t *internal_file = NULL; |
4278 | 0 | static char *function = "libcfile_file_set_access_behavior"; |
4279 | |
|
4280 | 0 | #if defined( HAVE_POSIX_FADVISE ) && !defined( WINAPI ) |
4281 | 0 | int advice = POSIX_FADV_NORMAL; |
4282 | 0 | int result = 0; |
4283 | 0 | #endif |
4284 | |
|
4285 | 0 | if( file == NULL ) |
4286 | 0 | { |
4287 | 0 | libcerror_error_set( |
4288 | 0 | error, |
4289 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4290 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
4291 | 0 | "%s: invalid file.", |
4292 | 0 | function ); |
4293 | |
|
4294 | 0 | return( -1 ); |
4295 | 0 | } |
4296 | 0 | internal_file = (libcfile_internal_file_t *) file; |
4297 | |
|
4298 | | #if defined( WINAPI ) |
4299 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
4300 | | { |
4301 | | libcerror_error_set( |
4302 | | error, |
4303 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4304 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
4305 | | "%s: invalid file - missing handle.", |
4306 | | function ); |
4307 | | |
4308 | | return( -1 ); |
4309 | | } |
4310 | | #else |
4311 | 0 | if( internal_file->descriptor == -1 ) |
4312 | 0 | { |
4313 | 0 | libcerror_error_set( |
4314 | 0 | error, |
4315 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4316 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
4317 | 0 | "%s: invalid file - missing descriptor.", |
4318 | 0 | function ); |
4319 | |
|
4320 | 0 | return( -1 ); |
4321 | 0 | } |
4322 | 0 | #endif |
4323 | 0 | if( ( access_behavior != LIBCFILE_ACCESS_BEHAVIOR_NORMAL ) |
4324 | 0 | && ( access_behavior != LIBCFILE_ACCESS_BEHAVIOR_RANDOM ) |
4325 | 0 | && ( access_behavior != LIBCFILE_ACCESS_BEHAVIOR_SEQUENTIAL ) ) |
4326 | 0 | { |
4327 | 0 | libcerror_error_set( |
4328 | 0 | error, |
4329 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4330 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
4331 | 0 | "%s: unsupported access behavior: %d.", |
4332 | 0 | function, |
4333 | 0 | access_behavior ); |
4334 | |
|
4335 | 0 | return( -1 ); |
4336 | 0 | } |
4337 | 0 | #if defined( HAVE_POSIX_FADVISE ) && !defined( WINAPI ) |
4338 | 0 | if( access_behavior == LIBCFILE_ACCESS_BEHAVIOR_NORMAL ) |
4339 | 0 | { |
4340 | 0 | advice = POSIX_FADV_NORMAL; |
4341 | 0 | } |
4342 | 0 | else if( access_behavior == LIBCFILE_ACCESS_BEHAVIOR_RANDOM ) |
4343 | 0 | { |
4344 | 0 | advice = POSIX_FADV_RANDOM; |
4345 | 0 | } |
4346 | 0 | else if( access_behavior == LIBCFILE_ACCESS_BEHAVIOR_SEQUENTIAL ) |
4347 | 0 | { |
4348 | 0 | advice = POSIX_FADV_SEQUENTIAL; |
4349 | 0 | } |
4350 | 0 | result = posix_fadvise( |
4351 | 0 | internal_file->descriptor, |
4352 | 0 | 0, |
4353 | 0 | 0, |
4354 | 0 | advice ); |
4355 | | |
4356 | | /* Safely ignore if the device does not support fadvise. |
4357 | | * Note that FreeBSD 10.0 had a bug and was returning -1 |
4358 | | * and setting errno. |
4359 | | */ |
4360 | 0 | if( ( result != 0 ) |
4361 | 0 | && ( result != ENODEV ) ) |
4362 | 0 | { |
4363 | 0 | libcerror_system_set_error( |
4364 | 0 | error, |
4365 | 0 | LIBCERROR_ERROR_DOMAIN_IO, |
4366 | 0 | LIBCERROR_IO_ERROR_GENERIC, |
4367 | 0 | errno, |
4368 | 0 | "%s: unable to advice file descriptor on access behavior.", |
4369 | 0 | function ); |
4370 | |
|
4371 | 0 | return( -1 ); |
4372 | 0 | } |
4373 | 0 | #endif /* defined( HAVE_POSIX_FADVISE ) && !defined( WINAPI ) */ |
4374 | | |
4375 | 0 | return( 1 ); |
4376 | 0 | } |
4377 | | |
4378 | | /* Sets the block size for the read and seek operations |
4379 | | * A block size of 0 represents no block-based operations |
4380 | | * The total size must be a multitude of block size |
4381 | | * Returns 1 if successful or -1 on error |
4382 | | */ |
4383 | | int libcfile_internal_file_set_block_size( |
4384 | | libcfile_internal_file_t *internal_file, |
4385 | | size_t block_size, |
4386 | | libcerror_error_t **error ) |
4387 | 0 | { |
4388 | 0 | static char *function = "libcfile_internal_file_set_block_size"; |
4389 | |
|
4390 | 0 | if( internal_file == NULL ) |
4391 | 0 | { |
4392 | 0 | libcerror_error_set( |
4393 | 0 | error, |
4394 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4395 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
4396 | 0 | "%s: invalid file.", |
4397 | 0 | function ); |
4398 | |
|
4399 | 0 | return( -1 ); |
4400 | 0 | } |
4401 | | #if defined( WINAPI ) && ( UINT32_MAX < SSIZE_MAX ) |
4402 | | if( block_size > (size_t) UINT32_MAX ) |
4403 | | #else |
4404 | 0 | if( block_size > (size_t) SSIZE_MAX ) |
4405 | 0 | #endif |
4406 | 0 | { |
4407 | 0 | libcerror_error_set( |
4408 | 0 | error, |
4409 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4410 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
4411 | 0 | "%s: invalid block size value exceeds maximum.", |
4412 | 0 | function ); |
4413 | |
|
4414 | 0 | return( -1 ); |
4415 | 0 | } |
4416 | 0 | if( internal_file->block_data != NULL ) |
4417 | 0 | { |
4418 | 0 | if( block_size != internal_file->block_size ) |
4419 | 0 | { |
4420 | 0 | memory_free( |
4421 | 0 | internal_file->block_data ); |
4422 | |
|
4423 | 0 | internal_file->block_data = NULL; |
4424 | 0 | internal_file->block_data_size = 0; |
4425 | 0 | } |
4426 | 0 | } |
4427 | 0 | if( internal_file->block_data == NULL ) |
4428 | 0 | { |
4429 | 0 | if( block_size > 0 ) |
4430 | 0 | { |
4431 | 0 | internal_file->block_data = (uint8_t *) memory_allocate( |
4432 | 0 | sizeof( uint8_t ) * block_size ); |
4433 | |
|
4434 | 0 | if( internal_file->block_data == NULL ) |
4435 | 0 | { |
4436 | 0 | libcerror_error_set( |
4437 | 0 | error, |
4438 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
4439 | 0 | LIBCERROR_MEMORY_ERROR_INSUFFICIENT, |
4440 | 0 | "%s: unable to create block data.", |
4441 | 0 | function ); |
4442 | |
|
4443 | 0 | return( -1 ); |
4444 | 0 | } |
4445 | 0 | if( memory_set( |
4446 | 0 | internal_file->block_data, |
4447 | 0 | 0, |
4448 | 0 | block_size ) == NULL ) |
4449 | 0 | { |
4450 | 0 | libcerror_error_set( |
4451 | 0 | error, |
4452 | 0 | LIBCERROR_ERROR_DOMAIN_MEMORY, |
4453 | 0 | LIBCERROR_MEMORY_ERROR_SET_FAILED, |
4454 | 0 | "%s: unable to clear block data.", |
4455 | 0 | function ); |
4456 | |
|
4457 | 0 | return( -1 ); |
4458 | 0 | } |
4459 | 0 | } |
4460 | 0 | internal_file->block_size = block_size; |
4461 | 0 | } |
4462 | 0 | return( 1 ); |
4463 | 0 | } |
4464 | | |
4465 | | /* Sets the block size for the read and seek operations |
4466 | | * A block size of 0 represents no block-based operations |
4467 | | * The total size must be a multitude of block size |
4468 | | * Returns 1 if successful or -1 on error |
4469 | | */ |
4470 | | int libcfile_file_set_block_size( |
4471 | | libcfile_file_t *file, |
4472 | | size_t block_size, |
4473 | | libcerror_error_t **error ) |
4474 | 0 | { |
4475 | 0 | libcfile_internal_file_t *internal_file = NULL; |
4476 | 0 | static char *function = "libcfile_file_set_block_size"; |
4477 | |
|
4478 | 0 | if( file == NULL ) |
4479 | 0 | { |
4480 | 0 | libcerror_error_set( |
4481 | 0 | error, |
4482 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4483 | 0 | LIBCERROR_ARGUMENT_ERROR_INVALID_VALUE, |
4484 | 0 | "%s: invalid file.", |
4485 | 0 | function ); |
4486 | |
|
4487 | 0 | return( -1 ); |
4488 | 0 | } |
4489 | 0 | internal_file = (libcfile_internal_file_t *) file; |
4490 | |
|
4491 | 0 | if( ( internal_file->access_flags & LIBCFILE_ACCESS_FLAG_WRITE ) != 0 ) |
4492 | 0 | { |
4493 | 0 | libcerror_error_set( |
4494 | 0 | error, |
4495 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4496 | 0 | LIBCERROR_ARGUMENT_ERROR_UNSUPPORTED_VALUE, |
4497 | 0 | "%s: setting block size not supported with write access.", |
4498 | 0 | function ); |
4499 | |
|
4500 | 0 | return( -1 ); |
4501 | 0 | } |
4502 | | #if defined( WINAPI ) |
4503 | | if( internal_file->handle == INVALID_HANDLE_VALUE ) |
4504 | | { |
4505 | | libcerror_error_set( |
4506 | | error, |
4507 | | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4508 | | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
4509 | | "%s: invalid file - missing handle.", |
4510 | | function ); |
4511 | | |
4512 | | return( -1 ); |
4513 | | } |
4514 | | #else |
4515 | 0 | if( internal_file->descriptor == -1 ) |
4516 | 0 | { |
4517 | 0 | libcerror_error_set( |
4518 | 0 | error, |
4519 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4520 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_MISSING, |
4521 | 0 | "%s: invalid file - missing descriptor.", |
4522 | 0 | function ); |
4523 | |
|
4524 | 0 | return( -1 ); |
4525 | 0 | } |
4526 | 0 | #endif |
4527 | | #if defined( WINAPI ) && ( UINT32_MAX < SSIZE_MAX ) |
4528 | | if( block_size > (size_t) UINT32_MAX ) |
4529 | | #else |
4530 | 0 | if( block_size > (size_t) SSIZE_MAX ) |
4531 | 0 | #endif |
4532 | 0 | { |
4533 | 0 | libcerror_error_set( |
4534 | 0 | error, |
4535 | 0 | LIBCERROR_ERROR_DOMAIN_ARGUMENTS, |
4536 | 0 | LIBCERROR_ARGUMENT_ERROR_VALUE_EXCEEDS_MAXIMUM, |
4537 | 0 | "%s: invalid block size value exceeds maximum.", |
4538 | 0 | function ); |
4539 | |
|
4540 | 0 | return( -1 ); |
4541 | 0 | } |
4542 | 0 | if( ( block_size != 0 ) |
4543 | 0 | && ( ( internal_file->size % block_size ) != 0 ) ) |
4544 | 0 | { |
4545 | 0 | libcerror_error_set( |
4546 | 0 | error, |
4547 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4548 | 0 | LIBCERROR_RUNTIME_ERROR_VALUE_OUT_OF_BOUNDS, |
4549 | 0 | "%s: invalid block size value out of bounds.", |
4550 | 0 | function ); |
4551 | |
|
4552 | 0 | return( -1 ); |
4553 | 0 | } |
4554 | 0 | if( libcfile_internal_file_set_block_size( |
4555 | 0 | internal_file, |
4556 | 0 | block_size, |
4557 | 0 | error ) != 1 ) |
4558 | 0 | { |
4559 | 0 | libcerror_error_set( |
4560 | 0 | error, |
4561 | 0 | LIBCERROR_ERROR_DOMAIN_RUNTIME, |
4562 | 0 | LIBCERROR_RUNTIME_ERROR_SET_FAILED, |
4563 | 0 | "%s: unable to set block size.", |
4564 | 0 | function ); |
4565 | |
|
4566 | 0 | return( -1 ); |
4567 | 0 | } |
4568 | 0 | return( 1 ); |
4569 | 0 | } |
4570 | | |