-
Notifications
You must be signed in to change notification settings - Fork 3
/
wrapper.c
841 lines (692 loc) · 26.3 KB
/
wrapper.c
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
365
366
367
368
369
370
371
372
373
374
375
376
377
378
379
380
381
382
383
384
385
386
387
388
389
390
391
392
393
394
395
396
397
398
399
400
401
402
403
404
405
406
407
408
409
410
411
412
413
414
415
416
417
418
419
420
421
422
423
424
425
426
427
428
429
430
431
432
433
434
435
436
437
438
439
440
441
442
443
444
445
446
447
448
449
450
451
452
453
454
455
456
457
458
459
460
461
462
463
464
465
466
467
468
469
470
471
472
473
474
475
476
477
478
479
480
481
482
483
484
485
486
487
488
489
490
491
492
493
494
495
496
497
498
499
500
501
502
503
504
505
506
507
508
509
510
511
512
513
514
515
516
517
518
519
520
521
522
523
524
525
526
527
528
529
530
531
532
533
534
535
536
537
538
539
540
541
542
543
544
545
546
547
548
549
550
551
552
553
554
555
556
557
558
559
560
561
562
563
564
565
566
567
568
569
570
571
572
573
574
575
576
577
578
579
580
581
582
583
584
585
586
587
588
589
590
591
592
593
594
595
596
597
598
599
600
601
602
603
604
605
606
607
608
609
610
611
612
613
614
615
616
617
618
619
620
621
622
623
624
625
626
627
628
629
630
631
632
633
634
635
636
637
638
639
640
641
642
643
644
645
646
647
648
649
650
651
652
653
654
655
656
657
658
659
660
661
662
663
664
665
666
667
668
669
670
671
672
673
674
675
676
677
678
679
680
681
682
683
684
685
686
687
688
689
690
691
692
693
694
695
696
697
698
699
700
701
702
703
704
705
706
707
708
709
710
711
712
713
714
715
716
717
718
719
720
721
722
723
724
725
726
727
728
729
730
731
732
733
734
735
736
737
738
739
740
741
742
743
744
745
746
747
748
749
750
751
752
753
754
755
756
757
758
759
760
761
762
763
764
765
766
767
768
769
770
771
772
773
774
775
776
777
778
779
780
781
782
783
784
785
786
787
788
789
790
791
792
793
794
795
796
797
798
799
800
801
802
803
804
805
806
807
808
809
810
811
812
813
814
815
816
817
818
819
820
821
822
823
824
825
826
827
828
829
830
831
832
833
834
835
836
837
838
839
840
841
#include <ccos_image.h>
#include <common.h>
#include <errno.h>
#include <limits.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#include <string_utils.h>
#include <sys/stat.h>
#include <wrapper.h>
#define PROGRAMS_DIR_1 "Programs~Subject~"
#define PROGRAMS_DIR_2 "Programs~subject~"
typedef struct {
const char* target_name;
ccos_inode_t* target_file;
} find_file_data_t;
struct stat statbuf;
typedef enum { RESULT_OK = 1, RESULT_ERROR, RESULT_BREAK } traverse_callback_result_t;
typedef traverse_callback_result_t (*on_file_t)(ccos_inode_t* file, const uint8_t* data, const char* dirname, int level,
void* arg);
typedef traverse_callback_result_t (*on_dir_t)(ccos_inode_t* dir, const uint8_t* data, const char* dirname, int level,
void* arg);
static char* format_version(version_t* version) {
char* version_string = (char*)calloc(VERSION_MAX_SIZE, sizeof(char));
if (version_string == NULL) {
return NULL;
}
snprintf(version_string, VERSION_MAX_SIZE, "%u.%u.%u", version->major, version->minor, version->patch);
return version_string;
}
static int traverse_ccos_image(ccos_inode_t* dir, uint8_t* data, const char* dirname, int level, on_file_t on_file,
on_dir_t on_dir, void* arg) {
uint16_t files_count = 0;
ccos_inode_t** dir_contents = NULL;
if (ccos_get_dir_contents(dir, data, &files_count, &dir_contents) == -1) {
fprintf(stderr, "Unable to get root dir contents!\n");
return -1;
}
TRACE("Processing %d entries in \"%s\"...", files_count, dirname);
for (int i = 0; i < files_count; ++i) {
TRACE("Processing %d/%d...", i + 1, files_count);
const ccos_inode_t* inode = dir_contents[i];
ccos_validate_file(inode);
if (ccos_is_dir(dir_contents[i])) {
TRACE("%d: directory", i + 1);
char subdir_name[CCOS_MAX_FILE_NAME];
memset(subdir_name, 0, CCOS_MAX_FILE_NAME);
if (ccos_parse_file_name(dir_contents[i], subdir_name, NULL, NULL, NULL) == -1) {
free(dir_contents);
return -1;
}
TRACE("%d: Processing directory \"%s\"...", i + 1, subdir_name);
char* subdir = (char*)calloc(sizeof(char), PATH_MAX);
if (subdir == NULL) {
fprintf(stderr, "Unable to allocate memory for subdir!\n");
free(dir_contents);
return -1;
}
snprintf(subdir, PATH_MAX, "%s/%s", dirname, subdir_name);
if (on_dir != NULL) {
traverse_callback_result_t res;
if ((res = on_dir(dir_contents[i], data, dirname, level, arg)) != RESULT_OK) {
TRACE("on_dir returned %d", res);
free(dir_contents);
free(subdir);
if (res == RESULT_ERROR) {
fprintf(stderr, "An error occurred, skipping the rest of the image!\n");
return -1;
} else {
return 0;
}
}
}
int res = traverse_ccos_image(dir_contents[i], data, subdir, level + 1, on_file, on_dir, arg);
free(subdir);
if (res == -1) {
fprintf(stderr, "An error occurred, skipping the rest of the image!\n");
return -1;
}
} else {
TRACE("%d: file", i + 1);
if (on_file != NULL) {
traverse_callback_result_t res;
if ((res = on_file(dir_contents[i], data, dirname, level, arg)) != RESULT_OK) {
TRACE("on_file returned %d", res);
free(dir_contents);
if (res == RESULT_ERROR) {
fprintf(stderr, "An error occurred, skipping the rest of the image!\n");
return -1;
} else {
return 0;
}
}
}
}
}
free(dir_contents);
TRACE("\"%s\" traverse complete!", dirname);
return 0;
}
static traverse_callback_result_t print_file_info(ccos_inode_t* file, UNUSED const uint8_t* data,
UNUSED const char* dirname, int level, void* arg) {
int short_format = *(int*)arg;
uint32_t file_size = ccos_get_file_size(file);
char basename[CCOS_MAX_FILE_NAME];
char type[CCOS_MAX_FILE_NAME];
memset(basename, 0, CCOS_MAX_FILE_NAME);
memset(type, 0, CCOS_MAX_FILE_NAME);
int res = ccos_parse_file_name(file, basename, type, NULL, NULL);
if (res == -1) {
fprintf(stderr, "Invalid file name!\n");
return RESULT_ERROR;
}
size_t formatted_name_length = strlen(basename) + 2 * level;
char* formatted_name = calloc(formatted_name_length + 1, sizeof(char));
if (formatted_name == NULL) {
fprintf(stderr, "Error: unable to allocate memory for formatted name!\n");
return RESULT_ERROR;
}
snprintf(formatted_name, formatted_name_length + 1, "%*s", (int)formatted_name_length, basename);
version_t version = ccos_get_file_version(file);
char* version_string = format_version(&version);
if (version_string == NULL) {
fprintf(stderr, "Error: invalid file version string!\n");
free(formatted_name);
return RESULT_ERROR;
}
ccos_date_t creation_date = ccos_get_creation_date(file);
char creation_date_string[16];
snprintf(creation_date_string, 16, "%04d/%02d/%02d", creation_date.year, creation_date.month, creation_date.day);
ccos_date_t mod_date = ccos_get_mod_date(file);
char mod_date_string[16];
snprintf(mod_date_string, 16, "%04d/%02d/%02d", mod_date.year, mod_date.month, mod_date.day);
ccos_date_t exp_date = ccos_get_exp_date(file);
char exp_date_string[16];
snprintf(exp_date_string, 16, "%04d/%02d/%02d", exp_date.year, exp_date.month, exp_date.day);
if (short_format) {
printf("%-*s%-*s%-*d%-*s\n", 32, formatted_name, 24, type, 14, file_size, 10, version_string);
} else {
printf("%-*s%-*s%-*d%-*s%-*s%-*s%-*s\n", 32, formatted_name, 24, type, 14, file_size, 10, version_string, 16,
creation_date_string, 16, mod_date_string, 16, exp_date_string);
}
free(version_string);
free(formatted_name);
return RESULT_OK;
}
int print_image_info(const char* path, uint8_t* data, size_t data_size, int short_format) {
ccos_inode_t* root_dir = ccos_get_root_dir(data, data_size);
if (root_dir == NULL) {
fprintf(stderr, "Unable to print image info: Unable to find root directory!\n");
return -1;
}
char* floppy_name = short_string_to_string(ccos_get_file_name(root_dir));
const char* name_trimmed = trim_string(floppy_name, ' ');
char* basename = strrchr(path, '/');
if (basename == NULL) {
basename = (char*)path;
} else {
basename = basename + 1;
}
print_frame(strlen(basename) + 2);
printf("|%s| - ", basename);
if (strlen(name_trimmed) == 0) {
printf("No description\n");
} else {
printf("%s\n", floppy_name);
}
print_frame(strlen(basename) + 2);
printf("\n");
free(floppy_name);
if (short_format) {
printf("%-*s%-*s%-*s%-*s\n", 32, "File name", 24, "File type", 14, "File size", 10, "Version");
print_frame(80);
} else {
printf("%-*s%-*s%-*s%-*s%-*s%-*s%-*s\n", 32, "File name", 24, "File type", 14, "File size", 10, "Version", 16,
"Creation date", 16, "Mod. date", 16, "Exp. date");
print_frame(128);
}
return traverse_ccos_image(root_dir, data, "", 0, print_file_info, print_file_info, &short_format);
}
static traverse_callback_result_t dump_dir_tree_on_file(ccos_inode_t* file, const uint8_t* data, const char* dirname,
UNUSED int level, UNUSED void* arg) {
char* abspath = (char*)calloc(sizeof(char), PATH_MAX);
if (abspath == NULL) {
fprintf(stderr, "Unable to allocate memory for the filename!\n");
return RESULT_ERROR;
}
char* file_name = short_string_to_string(ccos_get_file_name(file));
if (file_name == NULL) {
fprintf(stderr, "Unable to get filename at file at 0x%x\n", ccos_file_id(file));
free(abspath);
return RESULT_ERROR;
}
// some files in CCOS may actually have slashes in their names, like GenericSerialXON/XOFF~Printer~
replace_char_in_place(file_name, '/', '_');
snprintf(abspath, PATH_MAX, "%s/%s", dirname, file_name);
free(file_name);
size_t file_size = 0;
uint8_t* file_data = NULL;
if (ccos_read_file(file, data, &file_data, &file_size) == -1) {
fprintf(stderr, "Unable to dump file at 0x%x: Unable to get file contents!\n", ccos_file_id(file));
if (file_data != NULL) {
free(file_data);
return RESULT_ERROR;
}
}
TRACE("Writing to \"%s\"...", abspath);
FILE* f = fopen(abspath, "wb");
if (f == NULL) {
fprintf(stderr, "Unable to open file \"%s\": %s!\n", abspath, strerror(errno));
free(abspath);
free(file_data);
return RESULT_ERROR;
}
if (fwrite(file_data, sizeof(uint8_t), file_size, f) < file_size) {
fprintf(stderr, "Unable to write data to \"%s\": %s!\n", abspath, strerror(errno));
free(abspath);
free(file_data);
fclose(f);
return RESULT_ERROR;
}
fclose(f);
free(file_data);
free(abspath);
TRACE("Done!");
return RESULT_OK;
}
static traverse_callback_result_t dump_dir_tree_on_dir(ccos_inode_t* dir, UNUSED const uint8_t* data,
const char* dirname, UNUSED int level, UNUSED void* arg) {
char subdir_name[CCOS_MAX_FILE_NAME];
memset(subdir_name, 0, CCOS_MAX_FILE_NAME);
if (ccos_parse_file_name(dir, subdir_name, NULL, NULL, NULL) == -1) {
fprintf(stderr, "Unable to dump directory at 0x%x: Unable to get directory name!\n", ccos_file_id(dir));
return -1;
}
// some directories have '/' in their names, e.g. "GRiD-OS/Windows 113x, 114x v3.1.5D"
replace_char_in_place(subdir_name, '/', '_');
char* subdir = (char*)calloc(sizeof(char), PATH_MAX);
if (subdir == NULL) {
fprintf(stderr, "Unable to allocate memory for subdir!\n");
return RESULT_ERROR;
}
snprintf(subdir, PATH_MAX, "%s/%s", dirname, subdir_name);
int res = MKDIR(subdir, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH);
if (res == -1) {
if (errno == EEXIST) {
TRACE("Directory \"%s\" already exists! Dumping...", subdir);
} else {
fprintf(stderr, "Unable to create directory \"%s\": %s!\n", subdir, strerror(errno));
free(subdir);
return RESULT_ERROR;
}
}
free(subdir);
return RESULT_OK;
}
int dump_image(const char* path, uint8_t* data, size_t data_size) {
ccos_inode_t* root_dir = ccos_get_root_dir(data, data_size);
if (root_dir == NULL) {
fprintf(stderr, "Unable to dump image: Unable to get root directory!\n");
return -1;
}
return dump_dir(path, root_dir, data);
}
int dump_file(const char* path_to_dir, ccos_inode_t* file, uint8_t* image_data) {
char dir_name[CCOS_MAX_FILE_NAME];
memset(dir_name, 0, CCOS_MAX_FILE_NAME);
char dir_type[CCOS_MAX_FILE_NAME];
memset(dir_type, 0, CCOS_MAX_FILE_NAME);
ccos_parse_file_name(file, dir_name, dir_type, NULL, NULL);
traverse_callback_result_t res = dump_dir_tree_on_file(file, image_data, path_to_dir, 0, NULL);
if (res == RESULT_ERROR) {
fprintf(stderr, "Unable to dump file \"%s~%s\": %s!\n", dir_name, dir_type, strerror(errno));
return -1;
}
return 0;
}
int dump_dir(const char* path, ccos_inode_t* dir, uint8_t* data) {
char* name_trimmed;
if (dir == ccos_get_parent_dir(dir, data)) {
name_trimmed = strdup(short_string_to_string(ccos_get_file_name(dir)));
if (strcmp(name_trimmed, "")) {
int sz = strlen(name_trimmed);
memmove(name_trimmed, name_trimmed + 1, sz - 1);
name_trimmed[sz - 1] = 0;
}
} else {
name_trimmed = (char*)calloc(sizeof(char), CCOS_MAX_FILE_NAME);
char* delim = strchr(ccos_get_file_name(dir)->data, '~');
strncpy(name_trimmed, ccos_get_file_name(dir)->data, (delim - ccos_get_file_name(dir)->data));
}
const char* basename = get_basename(path);
char* dirname = (char*)calloc(sizeof(char), PATH_MAX);
if (dirname == NULL) {
fprintf(stderr, "Unable to allocate memory for directory name!\n");
free(name_trimmed);
return -1;
}
if (strlen(name_trimmed) == 0) {
char* dot_position;
if ((dot_position = strchr(basename, '.')) != NULL) {
strncpy(dirname, basename, dot_position - basename);
} else {
strcpy(dirname, basename);
}
} else {
const char* idx = rtrim_string(name_trimmed, ' ');
if (idx == NULL) {
strcpy(dirname, name_trimmed);
} else {
strncpy(dirname, name_trimmed, idx - name_trimmed);
}
}
free(name_trimmed);
// some directories have '/' in their names, e.g. "GRiD-OS/Windows 113x, 114x v3.1.5D"
replace_char_in_place(dirname, '/', '_');
if (MKDIR(dirname, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH) == -1) {
if (errno == EEXIST) {
TRACE("Directory \"%s\" already exists! Dumping...", dirname);
} else {
fprintf(stderr, "Unable to create directory \"%s\": %s!\n", dirname, strerror(errno));
free(dirname);
return -1;
}
}
int res = traverse_ccos_image(dir, data, dirname, 0, dump_dir_tree_on_file, dump_dir_tree_on_dir, NULL);
free(dirname);
TRACE("Image dump complete!");
return res;
}
int dump_image_to(const char* path, uint8_t* data, size_t data_size, const char* destpath) {
ccos_inode_t* root_dir = ccos_get_root_dir(data, data_size);
if (root_dir == NULL) {
fprintf(stderr, "Unable to dump image: Unable to get root directory!\n");
return -1;
}
return dump_dir_to(path, root_dir, data, destpath);
}
int dump_dir_to(const char* path, ccos_inode_t* dir, uint8_t* data, const char* destpath) {
char* name_trimmed;
if (dir == ccos_get_parent_dir(dir, data)) {
name_trimmed = strdup(short_string_to_string(ccos_get_file_name(dir)));
if (strcmp(name_trimmed, "")) {
int sz = strlen(name_trimmed);
memmove(name_trimmed, name_trimmed + 1, sz - 1);
name_trimmed[sz - 1] = 0;
}
} else {
name_trimmed = (char*)calloc(sizeof(char), CCOS_MAX_FILE_NAME);
char* delim = strchr(ccos_get_file_name(dir)->data, '~');
strncpy(name_trimmed, ccos_get_file_name(dir)->data, (delim - ccos_get_file_name(dir)->data));
}
const char* basename = get_basename(path);
char* dirname = (char*)calloc(sizeof(char), PATH_MAX);
if (dirname == NULL) {
fprintf(stderr, "Unable to allocate memory for directory name!\n");
free(name_trimmed);
return -1;
}
if (strlen(name_trimmed) == 0) {
char* dot_position;
if ((dot_position = strchr(basename, '.')) != NULL) {
strncpy(dirname, basename, dot_position - basename);
} else {
strcpy(dirname, basename);
}
} else {
const char* idx = rtrim_string(name_trimmed, ' ');
if (idx == NULL) {
strcpy(dirname, name_trimmed);
} else {
strncpy(dirname, name_trimmed, idx - name_trimmed);
}
}
free(name_trimmed);
// some directories have '/' in their names, e.g. "GRiD-OS/Windows 113x, 114x v3.1.5D"
replace_char_in_place(dirname, '/', '_');
char* dest = (char*)calloc(sizeof(char), PATH_MAX);
if (dirname == NULL) {
fprintf(stderr, "Unable to allocate memory for directory name!\n");
return -1;
}
strcpy(dest, destpath);
strcat(dest, "/");
strcat(dest, dirname);
free(dirname);
if (MKDIR(dest, S_IRWXU | S_IRWXG | S_IROTH | S_IXOTH) == -1) {
if (errno == EEXIST) {
TRACE("Directory \"%s\" already exists! Dumping...", dest);
} else {
fprintf(stderr, "Unable to create directory \"%s\": %s!\n", dest, strerror(errno));
free(dest);
return -1;
}
}
int res = traverse_ccos_image(dir, data, dest, 0, dump_dir_tree_on_file, dump_dir_tree_on_dir, NULL);
free(dest);
TRACE("Image dump complete!");
return res;
}
static traverse_callback_result_t find_file_on_file(ccos_inode_t* file, UNUSED const uint8_t* data,
UNUSED const char* dirname, UNUSED int level, void* arg) {
char* file_name = short_string_to_string(ccos_get_file_name(file));
if (file_name == NULL) {
fprintf(stderr, "Unable to get filename at 0x%x\n", ccos_file_id(file));
return RESULT_ERROR;
}
find_file_data_t* target_data = (find_file_data_t*)arg;
replace_char_in_place(file_name, '/', '_');
if (strcmp(target_data->target_name, file_name) == 0) {
target_data->target_file = file;
free(file_name);
return RESULT_BREAK;
}
free(file_name);
return RESULT_OK;
}
static int find_filename(ccos_inode_t* root_dir, uint8_t* data, const char* filename, ccos_inode_t** file,
int verbose) {
find_file_data_t find_file_data = {.target_name = filename, .target_file = 0};
if (traverse_ccos_image(root_dir, data, "", 0, find_file_on_file, find_file_on_file, &find_file_data) == -1) {
fprintf(stderr, "Unable to find file in image: Unable to complete search!\n");
return -1;
}
if (find_file_data.target_file == 0) {
if (verbose) {
fprintf(stderr, "No file %s in the image.\n", filename);
}
return -1;
}
*file = find_file_data.target_file;
return 0;
}
int replace_file(const char* path, const char* filename, const char* target_name, uint8_t* data, size_t data_size,
int in_place) {
const char* basename;
if (target_name != NULL) {
basename = target_name;
} else {
basename = get_basename(path);
}
ccos_inode_t* root_dir = ccos_get_root_dir(data, data_size);
ccos_inode_t* found_file = NULL;
if (find_filename(root_dir, data, basename, &found_file, 1) != 0) {
fprintf(stderr, "Unable to find file %s in the image!\n", basename);
return -1;
}
FILE* target_file = fopen(filename, "rb");
if (target_file == NULL) {
fprintf(stderr, "Unable to open %s: %s!\n", filename, strerror(errno));
return -1;
}
fseek(target_file, 0, SEEK_END);
long file_size = ftell(target_file);
fseek(target_file, 0, SEEK_SET);
uint8_t* file_contents = (uint8_t*)calloc(file_size, sizeof(uint8_t));
if (file_contents == NULL) {
fprintf(stderr, "Unable to allocate %li bytes for the file %s contents: %s!\n", file_size, filename,
strerror(errno));
fclose(target_file);
return -1;
}
size_t readed = fread(file_contents, sizeof(uint8_t), file_size, target_file);
fclose(target_file);
if (readed != file_size) {
fprintf(stderr, "Unable to read %li bytes from the file %s: %s!\n", file_size, filename, strerror(errno));
free(file_contents);
return -1;
}
if (ccos_replace_file(found_file, file_contents, file_size, data) == -1) {
fprintf(stderr, "Unable to overwrite file %s in the image!\n", filename);
free(file_contents);
return -1;
}
FILE* output;
if (in_place) {
output = fopen(path, "wb");
} else {
char output_path[PATH_MAX];
memset(output_path, 0, PATH_MAX);
snprintf(output_path, PATH_MAX, "%s.new", path);
output = fopen(output_path, "wb");
}
if (output == NULL) {
fprintf(stderr, "Unable to open output file for writing: %s!\n", strerror(errno));
free(file_contents);
return -1;
}
size_t res = fwrite(data, sizeof(uint8_t), data_size, output);
free(file_contents);
fclose(output);
if (res != data_size) {
fprintf(stderr, "Unable to write new image: written " SIZE_T ", expected " SIZE_T ": %s!\n", res, data_size,
strerror(errno));
return -1;
}
return 0;
}
static int do_copy_file(uint8_t* dest_data, size_t dest_size, ccos_inode_t* dest_root_dir, uint8_t* source_data,
ccos_inode_t* source_root_dir, const char* filename) {
ccos_inode_t* source_file = NULL;
if (find_filename(source_root_dir, source_data, filename, &source_file, 1) != 0) {
fprintf(stderr, "Unable to find file %s in the image!\n", filename);
return -1;
}
const ccos_inode_t* source_parent_dir = ccos_get_parent_dir(source_file, source_data);
char* source_dir_name = short_string_to_string(ccos_get_file_name(source_parent_dir));
ccos_inode_t* dest_directory = NULL;
if (find_filename(dest_root_dir, dest_data, source_dir_name, &dest_directory, 1) == -1) {
fprintf(stderr, "Warn: Unable to find directory %s in dest image, will copy to the " PROGRAMS_DIR_1 " instead.\n",
source_dir_name);
if (find_filename(dest_root_dir, dest_data, PROGRAMS_DIR_1, &dest_directory, 0) == -1 &&
find_filename(dest_root_dir, dest_data, PROGRAMS_DIR_2, &dest_directory, 0) == -1) {
fprintf(stderr, "Warn: Unable to find directory %s in dest image, will copy to the root directory instead\n",
PROGRAMS_DIR_1);
dest_directory = dest_root_dir;
}
}
free(source_dir_name);
return ccos_copy_file(dest_data, dest_size, dest_directory, source_data, source_file);
}
int copy_file(const char* target_image, const char* filename, uint8_t* source_data, size_t source_size, int in_place) {
if (target_image == NULL) {
fprintf(stderr, "No target image is provided to copy file to!\n");
return -1;
}
if (filename == NULL) {
fprintf(stderr, "No file name provided to copy to another image!\n");
return -1;
}
uint8_t* dest_data = NULL;
size_t dest_size = 0;
if (read_file(target_image, &dest_data, &dest_size) == -1) {
fprintf(stderr, "Unable to read target disk image file!\n");
return -1;
}
ccos_inode_t* root_dir;
if ((root_dir = ccos_get_root_dir(source_data, source_size)) == NULL) {
fprintf(stderr, "Unable to get root directory of the source image!\n");
free(dest_data);
return -1;
}
ccos_inode_t* dest_root_dir;
if ((dest_root_dir = (ccos_inode_t*)ccos_get_root_dir(dest_data, dest_size)) == NULL) {
fprintf(stderr, "Unable to get root directory of the target image!\n");
free(dest_data);
return -1;
}
if (do_copy_file(dest_data, dest_size, dest_root_dir, source_data, root_dir, filename) == -1) {
fprintf(stderr, "Unable to copy file \"%s\" in \"%s\"!\n", filename, target_image);
free(dest_data);
return -1;
}
int res = save_image(target_image, dest_data, dest_size, in_place);
free(dest_data);
return res;
}
int add_file(const char* image_path, const char* file_path, const char* file_name, uint8_t* data, size_t data_size,
int in_place) {
if (image_path == NULL) {
fprintf(stderr, "No path to image is provided to copy file to!\n");
return -1;
}
if (file_path == NULL) {
fprintf(stderr, "No file name provided to add to image!\n");
return -1;
}
uint8_t* file_data = NULL;
size_t file_size = 0;
if (read_file(file_path, &file_data, &file_size) == -1) {
fprintf(stderr, "Unable to read target disk image file!\n");
return -1;
}
ccos_inode_t* root_dir = ccos_get_root_dir(data, data_size);
if (root_dir == NULL) {
fprintf(stderr, "Unable to add file to image: Unable to get root directory!\n");
free(file_data);
return -1;
}
ccos_inode_t* dest_dir = NULL;
if (find_filename(root_dir, data, PROGRAMS_DIR_1, &dest_dir, 0) == -1 &&
find_filename(root_dir, data, PROGRAMS_DIR_2, &dest_dir, 0) == -1) {
fprintf(stderr, "Warn: Unable to find directory %s in dest image, will add file to the root directory instead\n",
PROGRAMS_DIR_1);
dest_dir = root_dir;
}
ccos_inode_t* new_file = ccos_add_file(dest_dir, file_data, file_size, file_name, data, data_size);
free(file_data);
if (new_file == NULL) {
fprintf(stderr, "Unable to copy %s to %s!\n", file_name, file_path);
return -1;
}
return save_image(image_path, data, data_size, in_place);
}
int delete_file(const char* path, const char* filename, int in_place) {
if (path == NULL) {
fprintf(stderr, "No target image is provided to copy file to!\n");
return -1;
}
if (filename == NULL) {
fprintf(stderr, "No file name provided to copy to another image!\n");
return -1;
}
uint8_t* data = NULL;
size_t size = 0;
if (read_file(path, &data, &size) == -1) {
fprintf(stderr, "Unable to read target disk image file!\n");
return -1;
}
ccos_inode_t* root_dir = ccos_get_root_dir(data, size);
ccos_inode_t* file = NULL;
if (find_filename(root_dir, data, filename, &file, 1) != 0) {
fprintf(stderr, "Unable to find file %s in the image!\n", filename);
free(data);
return -1;
}
if (ccos_delete_file(data, size, file) == -1) {
fprintf(stderr, "Unable to delete file %s!\n", filename);
free(data);
return -1;
}
int res = save_image(path, data, size, in_place);
free(data);
return res;
}
int create_directory(char* path, char* directory_name, uint8_t* image_data, size_t image_size, int in_place) {
if (path == NULL) {
fprintf(stderr, "No target image is provided to copy file to!\n");
return -1;
}
if (directory_name == NULL) {
fprintf(stderr, "No file name provided to copy to another image!\n");
return -1;
}
ccos_inode_t* root_dir = ccos_get_root_dir(image_data, image_size);
if (root_dir == NULL) {
fprintf(stderr, "Unable to add file to image: Unable to get root directory!\n");
return -1;
}
if (ccos_create_dir(root_dir, directory_name, image_data, image_size) == NULL) {
fprintf(stderr, "Unable to create directory!\n");
return -1;
}
return save_image(path, image_data, image_size, in_place);
}
int rename_file(char* path, char* file_name, char* new_name, uint8_t* image_data, size_t image_size, int in_place) {
if (path == NULL) {
fprintf(stderr, "No target image is provided to copy file to!\n");
return -1;
}
if (file_name == NULL) {
fprintf(stderr, "No file provided to rename!\n");
return -1;
}
if (new_name == NULL) {
fprintf(stderr, "No new file name provided to rename file to!\n");
return -1;
}
ccos_inode_t* root_dir = ccos_get_root_dir(image_data, image_size);
if (root_dir == NULL) {
fprintf(stderr, "Unable to rename file: Unable to get root directory!\n");
return -1;
}
ccos_inode_t* file = NULL;
if (find_filename(root_dir, image_data, file_name, &file, 1) != 0) {
fprintf(stderr, "Unable to find file %s in the image!\n", file_name);
return -1;
}
if (ccos_rename_file(image_data, image_size, file, new_name, NULL) == -1) {
char* old_file_name = short_string_to_string(ccos_get_file_name(file));
fprintf(stderr, "Unable to rename file %s to %s!\n", old_file_name, new_name);
free(old_file_name);
return -1;
}
int res = save_image(path, image_data, image_size, in_place);
return res;
}
int create_blank_image(char* path) {
if (path == NULL) {
fprintf(stderr, "No target image is provided to copy file to!\n");
return -1;
}
size_t image_size = 0;
uint8_t* image_data = ccos_create_new_image(&image_size);
if (image_data == NULL) {
fprintf(stderr, "Unable to create blank image!\n");
return -1;
}
int res = save_image(path, image_data, image_size, 1);
free(image_data);
return res;
}