-
Notifications
You must be signed in to change notification settings - Fork 1
/
Copy patholefix.c
550 lines (493 loc) · 17.1 KB
/
olefix.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
#include <stdio.h>
#include <stdlib.h>
#include <string.h>
#define WINDOWS_TICK 10000000
#define SEC_TO_UNIX_EPOCH 11644473600LL
time_t convtime(long long *tp){
long long t=*tp;
t=t/WINDOWS_TICK;
t=t-SEC_TO_UNIX_EPOCH;
return (unsigned int) t;
}
inline long long gettime(long long *tp){
return *tp;
}
int main(int argc,char* argv[]){
int javitanikell=0;
FILE* f=fopen(argv[1],"r+b");
if(!f){
printf("cannot open: %s\n",argv[1]);
return 2;
}
//fseek(f,0,0);
unsigned char hdr[512];
fread(hdr,512,1,f);//fseek(f,0x1E,0);
//00000000 7B 5C 72 74 ? 66 31 5C 61 ? 6E 73 69 5C ? 61 6E 73 69 {\rtf1\ansi\ansi
if(hdr[0]==0x7B && hdr[1]==0x5C && hdr[2]==0x72) return 1; // RTF!!!
if(hdr[0]!=0xd0 || hdr[7]!=0xe1) javitanikell=1; //return 1; // TESTING ONLY
fseek(f,0,2);
int fs=ftell(f);
printf("=====================================================================\n");
printf("Analyzing '%s' size=%d\n",argv[1],fs);
printf("=====================================================================\n");
unsigned char rootentry[]={0x52,0,0x6F,0,0x6F,0,0x74,0,0x20,0,0x45,0,0x6E,0,0x74,0,0x72,0,0x79,0};
unsigned char docsumm[]= {0x05,0,0x44,0,0x6F,0,0x63,0,0x75,0,0x6D,0,0x65,0,0x6E,0};
unsigned char rootentry2[]={0x52,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0,
0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0,
0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0,
0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0,
2,0,5,0, 0xFF,0xFF,0xFF,0xFF, 0xFF,0xFF,0xFF,0xFF};
unsigned char rootentry3[]={0,0x52,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0,
0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0,
0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0,
0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0,
2,0,5,0, 0xFF,0xFF,0xFF,0xFF, 0xFF,0xFF,0xFF,0xFF};
//00000400 00 52 00 00 ? 00 00 00 00 ? 00 00 00 00 ? 00 00 00 00 .R..............
//00000410 00 00 00 00 ? 00 00 00 00 ? 00 00 00 00 ? 00 00 00 00 ................
//00000420 00 00 00 00 ? 00 00 00 00 ? 00 00 00 00 ? 00 00 00 00 ................
//00000430 00 00 00 00 ? 00 00 00 00 ? 00 00 00 00 ? 00 00 00 00 ................
//00000440 02 00 05 00 ? FF FF FF FF ? FF FF FF FF ? 02 00 00 00 ....ÿÿÿÿÿÿÿÿ....
//00000400 52 00 00 00 ? 00 00 00 00 ? 00 00 00 00 ? 00 00 00 00 R...............
//00000410 00 00 00 00 ? 00 00 00 00 ? 00 00 00 00 ? 00 00 00 00 ................
//00000420 00 00 00 00 ? 00 00 00 00 ? 00 00 00 00 ? 00 00 00 00 ................
//00000430 00 00 00 00 ? 00 00 00 00 ? 00 00 00 00 ? 00 00 00 00 ................
//00000440 02 00 05 00 ? FF FF FF FF ? FF FF FF FF ? 02 00 00 00 ....ÿÿÿÿÿÿÿÿ....
//00000450 20 08 02 00 ? 00 00 00 00 ? C0 00 00 00 ? 00 00 00 46 .......À......F
//00000460 00 00 00 00 ? 00 00 00 00 ? 00 00 00 00 ? 0B 7D 31 72 .............}1r
//00000470 95 95 CE 01 ? 3F 00 00 00 ? 80 08 00 00 ? 00 00 00 00 ..Î.?...........
unsigned int fat[1+512/4];
int fatsize=1+(fs>>9);
if(fatsize<=512) fatsize=514; // minifat miatt!!!
unsigned char* fattable=malloc(fatsize+128);
int fatmax=-1;
int fatmax2=-1;
int fatpos[fatsize+128];
memset(fatpos,0xFF,fatsize*4);
unsigned char* secttype=malloc(fatsize+128);
memset(secttype,0,fatsize+128);
#define SECT_ROOT 1
#define SECT_FAT 2
#define SECT_MARKEDFAT 4
#define SECT_MARKEDDIFAT 8
#define SECT_MARKEDDATA 16
#define SECT_MARKEDEND 32
#define SECT_OLD 64
#define SECT_MARKEDFREE 128
unsigned char ujhdr[512]={0xd0, 0xcf, 0x11, 0xe0, 0xa1, 0xb1, 0x1a, 0xe1, //signature
0,0,0,0, 0,0,0,0, 0,0,0,0, 0,0,0,0, //CLSID=0
0x3E,0, 0x03,0, 0xFE,0xFF, // version, byteorder
9,0, 6,0, // sector sizes
0,0,0,0,0,0, // reserved
0,0,0,0, // csectDir
2,0,0,0, // p[0] FAT length!!!
0xA3,0,0,0, // p[1] RootDir start!!!
0,0,0,0, // p[2] signature = 0
0,0x10,0,0, // p[3] ulMiniSectorCutoff=4096
0x94,0,0,0, // p[4] MiniFat Start!!!
1,0,0,0, // p[5] csectMiniFat number of SECTs in the MiniFAT chain
0xFE,0xFF,0xFF,0xFF, // first SECT in the DIFAT chain
0,0,0,0, // number of SECTs in the DIFAT chain
0xFF,0xFF,0xFF,0xFF, // FAT table
};
int* fatlist=ujhdr+0x4C;
int* ujhdrp=ujhdr+0x2C; // params!
memset(fatlist,0xff,4*109); // del fat table
int fatlistlen=0;
int minifat=-2;
if(argc>2) minifat=atoi(argv[2]);
if(argc>3){
// FAT lista megadva parancssorban!
// secttype felulirasa!!!
char* p=argv[3];
while(p && *p){
char* q=strchr(p,',');
if(q){ *q=0; q++; }
fatlist[fatlistlen]=atoi(p);
printf("defined FAT@%d = %d\n",fatlistlen,fatlist[fatlistlen]);
++fatlistlen;
p=q;
}
javitanikell=1;
// for(i=2;i<argc;i++) fatlist[fatlistlen++]=atoi(argv[i]);
}
int i=0;
fseek(f,512,0);
while(1){
// if(fread(hdr,20,1,f)<=0) break;
if(fread(fat,512,1,f)<=0) break;
if((memcmp(rootentry,fat,20)==0) || (memcmp(rootentry2,fat,0x4C)==0) || (memcmp(rootentry3,fat,0x4C)==0) ){
secttype[i]|=SECT_ROOT;
printf("RootEntry @ %d created: %08X %08X modify: %08X %08X\n",i,fat[0x64/4],fat[0x64/4+1],fat[0x64/4+2],fat[0x64/4+3]);
time_t t1=convtime(&fat[0x64/4]);
time_t t2=convtime(&fat[0x64/4+2]);
// printf(" unix times: %d %d\n",t1,t2);
printf(" create: %s",ctime(&t1));
printf(" modify: %s",ctime(&t2));
printf(" start sector: %d size: %d\n",fat[0x74/4],fat[0x78/4]);
}
if(memcmp(docsumm,fat,16)==0) printf("DocumentSymmary @ %d\n",i);
int j;
if(fatlistlen>0){
// van fat-listank!!!!!!! hasznaljuk.
for(j=0;j<fatlistlen;j++)
if(i==fatlist[j]){
// megvan!
printf("FAT Entry @ %d\n",i);
fatpos[i]=j;
secttype[i]|=SECT_FAT;
j*=128;
{ printf(" fat sectors included: ");
int k;
for(k=0;k<128;k++){
if(fat[k]==0xFFFFFFFD) printf("%d,",j+k);
if(fat[k]==0xFFFFFFFC) secttype[j+k]|=SECT_MARKEDDIFAT;
if(fat[k]==0xFFFFFFFD) secttype[j+k]|=SECT_MARKEDFAT;
if(fat[k]==0xFFFFFFFF) secttype[j+k]|=SECT_MARKEDFREE;
if(fat[k]==0xFFFFFFFE) secttype[j+k]|=SECT_MARKEDDATA|SECT_MARKEDEND;
if(fat[k]<=fatsize){
secttype[j+k]|=SECT_MARKEDDATA;
// printf(" data @ %d\n",j+k);
}
}
printf("\n");
// break;
}
break;
}
} else {
// no fat list -> try to detect!
int ff=0;
for(j=0;j<128;j++){
if(fat[j]<0xFFFFFFFD)
if(fat[j]>=fatsize) break;
// if(!fat[j] || fat[j]>=fatsize) break;
}
//maybe FAT @ 46 (120) 130
//maybe FAT @ 117 (128) -1208797620
// printf("maybe FAT @ %d (%d) %d\n",i,j,fat[j]);
if(j==128){
// maybe FAT sector... verify deeper
memset(fattable,0,fatsize);
int fat00=0;
int fatXX=0;
int fatFC=0;
int fatFD=0;
int fatFE=0;
int fatFF=0;
for(j=0;j<128;j++){
// printf(" j=%d %d\n",j,fat[j]);
if(fat[j]<0xFFFFFFFC){
// if(!fat[j] || fat[j]>=fatsize) break;
if(fat[j]>=fatsize) break;
if((++fattable[fat[j]])!=1) break;
if(!fat[j]){
if(fat00) break; // tobb mint egy db nulla
++fat00;
}
++fatXX;
} else
if(fat[j]==0xFFFFFFFC) ++fatFC; else
if(fat[j]==0xFFFFFFFD) ++fatFD; else
if(fat[j]==0xFFFFFFFE) ++fatFE; else
if(fat[j]==0xFFFFFFFF) ++fatFF;
}
if(j==128 && fatFF<128){
printf("FAT Entry @ %d %d/%d end=%d fat=%d di=%d (%d,%d,%d,%d,%d,%d,%d,%d...%d,%d)\n",
i, fatXX,fatFF, fatFE, fatFD, fatFC,
fat[0],fat[1],fat[2],fat[3],fat[4],fat[5],fat[6],fat[7], fat[126],fat[127]);
memset(fattable,0,fatsize);
fatmax2=0;
for(j=0;j<128;j++){
int c=fat[j]-j-1;
if(c>=0 && c<fatsize) fattable[c]++;
if((j&7)==0) putchar(' ');
if((j&15)==0) putchar(' ');
if(fat[j]==0xFFFFFFFF) putchar('.'); else
if(fat[j]==0xFFFFFFFE) putchar('e'); else
if(fat[j]==0xFFFFFFFD) putchar('F'); else
if(fat[j]==0xFFFFFFFC) putchar('D'); else
putchar('*');
if((j&63)==63) printf("\n");
if(fat[j]!=0xFFFFFFFF) fatmax2=j;
}
secttype[i]|=SECT_FAT;
//FAT Entry @ 129 4/121 end=1 fat=2 di=0 (-3,-3,131,-2,133...-1,-1)
//
int jmax=0;
for(j=1;j<fatsize;j++) if(fattable[j]>fattable[jmax]) jmax=j;
printf(" best diff match: %dx %d\n",fattable[jmax],jmax);
if( ((jmax&127)==0) && fattable[jmax]>=fatXX/2 && fattable[jmax]>1){
j=jmax;
printf(" fat entry for sectors %d .. %d\n",j,j+127);
fatmax=j+128;
//if((j&127)==0)
fatpos[i]=j/128;
//if(fatFD>0)
{ printf(" fat sectors included: ");
int k;
for(k=0;k<128;k++){
if(fat[k]==0xFFFFFFFD) printf("%d,",j+k);
if(fat[k]==0xFFFFFFFC) secttype[j+k]|=SECT_MARKEDDIFAT;
if(fat[k]==0xFFFFFFFD) secttype[j+k]|=SECT_MARKEDFAT;
if(fat[k]==0xFFFFFFFF) secttype[j+k]|=SECT_MARKEDFREE;
if(fat[k]==0xFFFFFFFE) secttype[j+k]|=SECT_MARKEDDATA|SECT_MARKEDEND;
if(fat[k]<=fatsize){
secttype[j+k]|=SECT_MARKEDDATA;
// printf(" data @ %d\n",j+k);
}
}
printf("\n");
// break;
}
} else
//FAT Entry @ 129 1/122 end=3 fat=2 di=0 (-3,-3,131,-2,-2,-2,-1,-1...-1,-1)
// FF*eee.. ........ ........ ........ ........ ........ ........ ........
//
// if(fatpos[i]<0 && fatXX==0 && i>=fatmax && i<fatmax+128 && fat[i-fatmax]==0xFFFFFFFD){
if(fatpos[i]<0 && i>=fatmax && i<fatmax+128 && fat[i-fatmax]==0xFFFFFFFD){
int fs2=((fs-512)+511)/512;
printf(" MAYBE fat entry for sectors %d .. %d\n",fatmax,fatmax+127);
printf(" file is %d sectors, fatmax2=%d\n",fs2,fatmax+fatmax2);
if(fs2>=fatmax && fs2<fatmax+130)
{ int j=fatmax;
fatpos[i]=j/128;
printf(" fat sectors included: ");
int k;
for(k=0;k<128;k++){
if(fat[k]==0xFFFFFFFD) printf("%d,",j+k);
if(fat[k]==0xFFFFFFFC) secttype[j+k]|=SECT_MARKEDDIFAT;
if(fat[k]==0xFFFFFFFD) secttype[j+k]|=SECT_MARKEDFAT;
if(fat[k]==0xFFFFFFFF) secttype[j+k]|=SECT_MARKEDFREE;
if(fat[k]==0xFFFFFFFE) secttype[j+k]|=SECT_MARKEDDATA|SECT_MARKEDEND;
if(fat[k]<=fatsize){
secttype[j+k]|=SECT_MARKEDDATA;
// printf(" data @ %d\n",j+k);
}
}
printf("\n");
// break;
}
}
}
// else printf("maybe FAT @ %d (%d) %d\n",i,j,fat[j]);
}
}
++i;
}
printf("=====================================================================\n");
printf(" Starting recovery...\n");
printf("=====================================================================\n");
//00000000 D0 CF 11 E0 ? A1 B1 1A E1 ? 00 00 00 00 ? 00 00 00 00 ÐÏ.ࡱ.á........
//00000010 00 00 00 00 ? 00 00 00 00 ? 3E 00 03 00 ? FE FF 09 00 ........>...þÿ..
//00000020 06 00 00 00 ? 00 00 00 00 ? 00 00 00 00 ? 02 00 00 00 ................
//00000030 A3 00 00 00 ? 00 00 00 00 ? 00 10 00 00 ? 94 00 00 00 £...............
//00000040 01 00 00 00 ? FE FF FF FF ? 00 00 00 00 ? A5 00 00 00 ....þÿÿÿ....¥...
//00000050 A4 00 00 00 ? FF FF FF FF ? FF FF FF FF ? FF FF FF FF ¤...ÿÿÿÿÿÿÿÿÿÿÿÿ
int rootdir=-2;
int rootdirstart=-2;
long long rootdirtime=0;
int minifatsize=0;
int prob_sokfat=0;
int prob_sokmini=0;
// find rootdir
for(i=0;i<fatsize;i++){
unsigned char t=secttype[i];
if(t&15){
if( (t&SECT_ROOT) ){
if(t&SECT_MARKEDDATA){
fseek(f,512*(i+1),0);
if(fread(fat,512,1,f)<=0) break;
// time_t t1=convtime(&fat[0x64/4]);
time_t t2=convtime(&fat[0x64/4+2]);
long long tl=gettime(&fat[0x64/4+2]);
printf("RootDir sector:%4d modify:%s",i,ctime(&t2));
printf(" start sector:%4d size: %d\n",fat[0x74/4],fat[0x78/4]);
if(rootdir<0 || tl>=rootdirtime){
rootdir=i; rootdirtime=tl;
rootdirstart=fat[0x74/4];
}
}
}
}
}
for(i=0;i<fatsize;i++){
unsigned char t=secttype[i];
if(t&15){
printf("sector %3d: 0x%02X ",i,t);
if( (t&SECT_ROOT) ){
if(t&SECT_MARKEDDATA){
if(i==rootdir)
printf("RootDir");
else
printf("old RootDir");
} else
printf("deleted RootDir");
} else
if( (t&(SECT_FAT|SECT_MARKEDFAT|SECT_MARKEDDATA)) == (SECT_FAT|SECT_MARKEDDATA) ){
printf("MiniFAT @ %d",fatpos[i]);
// if(fatpos[i]==0) minifat=i;
} else
if( (t&(SECT_FAT|SECT_MARKEDFAT)) == (SECT_FAT|SECT_MARKEDFAT) ){
fseek(f,512*(i+1),0);
if(fread(fat,512,1,f)<=0) break;
int k;
k=128*fatpos[i];
int old=0;
if(rootdir>=k && rootdir<k+128)
if(fat[rootdir-k]!=0xFFFFFFFE && fat[rootdir-k]>fatsize) old++;
// if(rootdirstart>=k && rootdirstart<k+128)
// if(fat[rootdirstart-k]!=0xFFFFFFFE && fat[rootdirstart-k]>fatsize) old++;
printf("%sFAT @ %d includes: ",old?"old ":"",fatpos[i]);
if(old) secttype[i]|=SECT_OLD;
for(k=0;k<128;k++){
if(fat[k]==0xFFFFFFFD)
printf("%d,",128*fatpos[i]+k); else
if((secttype[128*fatpos[i]+k]&(SECT_FAT|SECT_MARKEDFAT|SECT_MARKEDDATA)) == (SECT_FAT|SECT_MARKEDDATA)){
printf("(%d),",128*fatpos[i]+k);
}
if((fat[k]>=0 && fat[k]<fatsize) || fat[k]==0xFFFFFFFE){
if(rootdir==128*fatpos[i]+k) printf("Root,");
if(rootdirstart==128*fatpos[i]+k) printf("Stream,");
}
}
if(fatlist[fatpos[i]]<0 || !old){
if(fatlist[fatpos[i]]>=0)
if(!(secttype[fatlist[fatpos[i]]]&SECT_OLD)) ++prob_sokfat;
fatlist[fatpos[i]]=i;
if(fatpos[i]+1>fatlistlen) fatlistlen=fatpos[i]+1;
}
} else
printf("???");
printf("\n");
}
}
if(minifat>=0){
// minifat given
printf("MiniFAT sector defined: %d\n",minifat);
int i=minifat;
while(i>=0 && i<fatsize && minifatsize<32){
// verify in FAT
int j=fatlist[i/128];
if(j>=0 && j<fatsize){
fseek(f,512*(j+1),0);
if(fread(fat,512,1,f)<=0) break;
if(fat[i&127]==0xFFFFFFFE || fat[i&127]<fatsize){
printf("MiniFAT @ %d sector: %d (next: %d)\n",minifatsize,i,fat[i&127]);
i=fat[i&127];++minifatsize;continue;
}
}
break;
}
} else
for(i=0;i<fatsize;i++){
// find minifat
unsigned char t=secttype[i];
if(t&15){
if( (t&(SECT_FAT|SECT_MARKEDFAT|SECT_MARKEDDATA)) == (SECT_FAT|SECT_MARKEDDATA) ){
// verify in FAT
int j=fatlist[i/128];
if(j>=0 && j<fatsize){
fseek(f,512*(j+1),0);
if(fread(fat,512,1,f)<=0) break;
if(fat[i&127]==0xFFFFFFFE || fat[i&127]<fatsize){
printf("MiniFAT @ %d sector: %d (next: %d)\n",fatpos[i],i,fat[i&127]);
if(fatpos[i]==0 && minifat>=0) ++prob_sokmini;
if((fatpos[i]<=0 && minifat<0)||(fatpos[i]==0)){
minifat=i;
minifatsize = (fat[i&127]==0xFFFFFFFE) ? 1 : 2;
} else
if(fatpos[i]>0)
minifatsize = fatpos[i]+1;
}
}
// printf("MiniFAT @ %d",fatpos[i]);
// if(fatpos[i]==0) minifat=i;
}
}
}
printf("NEW hdr: root=%d mini=%d(%d) FAT(%d):",rootdir,minifat,minifatsize,fatlistlen);
for(i=0;i<fatlistlen;i++) printf("%d,",fatlist[i]);
printf("\n");
int chkfat(int x){
if(x>=i*128 && x<i*128+128){
if(fat[x-i*128]==0xFFFFFFFE) return 1; // end
if(fat[x-i*128]>=0 && fat[x-i*128]<fatsize) return 1;
}
return 0;
}
// detect possible problems
// check FAT size, content:
int fs2=((fs-512)+511)/512;
int fs3=(fs2+127)/128; // FAT sectorok szama
int prob_fat=0;
int prob_fathasroot=0;
int prob_fathasmini=0;
int prob_fathasfat=0;
int prob_fathasstream=0;
int prob_fatcount=0;
for(i=0;i<fs3;i++){
if(fatlist[i]>=0){
fseek(f,512*(fatlist[i]+1),0);
if(fread(fat,512,1,f)>0){
prob_fathasroot+=chkfat(rootdir);
prob_fathasmini+=chkfat(minifat);
prob_fathasstream+=chkfat(rootdirstart);
int j;
for(j=0;j<fs3;j++){
int x=fatlist[j];
if(x>=i*128 && x<i*128+128){
// printf("FF(%d): %d in %d = %d\n",j,x,fatlist[i],fat[x-i*128]);
if(fat[x-i*128]==0xFFFFFFFD)
prob_fathasfat++;
}
}
for(j=0;j<128;j++)
if(fat[j]==0xFFFFFFFD)
++prob_fatcount;
}
} else {
printf("WARNING: missing FAT sector @ %d\n",i);
++prob_fat;
}
}
printf("PROBLEMS:");
if(rootdir<0) printf(",nincs ROOT!"); else
if(prob_fathasroot!=1) printf(",nincs ROOT a FATban");
if(rootdirstart>=0 && prob_fathasstream!=1) printf(",nincs stream a FATban");
if(prob_fathasfat!=fs3) printf(",nincs FAT a FATban (%d/%d)",prob_fathasfat,fs3); else
if(prob_fatcount!=fs3) printf(",tobb FAT a FATban! (%d/%d)",prob_fatcount,fs3);
if(prob_fat) printf(",hianyzo FAT sector (%d)",prob_fat);
if(prob_sokfat) printf(",tobb FAT verzio"); // ez csak warning
if(prob_sokmini) printf(",tobb MiniFAT verzio");
if(minifat>=0 && prob_fathasmini!=1) printf(",nincs Mini a FATban");
printf(" [%s]\n",argv[1]);
printf(" multi-fat: %d multi-mini: %d FAT: root=%d stream=%d mini=%d fat=%d/%d/%d missing=%d\n",
prob_sokfat,prob_sokmini, prob_fathasroot, prob_fathasstream,prob_fathasmini, prob_fathasfat, prob_fatcount,fs3, prob_fat);
ujhdrp[0]=fatlistlen;
ujhdrp[1]=rootdir;
ujhdrp[4]=minifat;
ujhdrp[5]=minifatsize; //(minifat<0)?0:( (secttype[minifat]&SECT_MARKEDEND) ? 1 : 2 );
//if(hdr[0]!=0xd0 || hdr[7]!=0xe1) return 1;
unsigned int* data=hdr+0x2C;
if(hdr[0]==0xd0 && hdr[7]==0xe1){
printf("%d/%d FATlen:%3d root:%3d mini:%3d(%d)[%d] difat:%d(%d) FAT:",
hdr[0x1E],hdr[0x20],
data[0], data[1], data[4],data[5],data[4]-data[1], data[6],data[7]);
for(i=0;i<data[0];i++) printf("%d,",data[8+i]);
printf(" [%d] %s\n",fs,argv[1]);
if(memcmp(ujhdr,hdr,512)){
printf("HDR mismatch!!! file:%s\n",argv[1]);
for(i=0;i<512;i++)
if(hdr[i]!=ujhdr[i])
printf("at 0x%02X: old=0x%02X new=0x%02X\n",i,hdr[i],ujhdr[i]);
} else
printf("HDR OKAY!!!!! file:%s\n",argv[1]);
}
if(javitanikell){
// recover file!!!
printf("HDR rewrite!!! file:%s\n",argv[1]);
fseek(f,0,0);
fwrite(ujhdr,512,1,f);
fclose(f);
}
}