1: 
2: 
3: 
4: 
5: 
6: 
7: 
8: 
9: 
10: LittleEndian ( ) ; 
11: 
12: typedef char BOOL ; 
13: typedef char BYTE ; 
14: typedef unsigned char UBYTE ; 
15: typedef short SHORT ; 
16: typedef unsigned short USHORT ; 
17: typedef long LONG ; 
18: typedef unsigned long ULONG ; 
19: 
20: 
21: local quad DataAreaSector ; 
22: local quad DataAreaFilePos ; 
23: 
24: local quad CurrentPosSector ; 
25: 
26: local unsigned char SizeOfEach_ClusterEntry_InBytes ; 
27: 
28: 
29: 
30: 
31: 
32: typedef enum < uchar > tagSYSTEMID 
33: { 
34: EMPTY = 0 , 
35: FAT_12 = 1 , 
36: XENIX_ROOT = 2 , 
37: XENIX_USR = 3 , 
38: FAT_16_INF32MB = 4 , 
39: EXTENDED = 5 , 
40: FAT_16 = 6 , 
41: NTFS_HPFS = 7 , 
42: AIX = 8 , 
43: AIX_BOOT = 9 , 
44: OS2_BOOT_MGR = 10 , 
45: PRI_FAT32_INT13 = 11 , 
46: EXT_FAT32_INT13 = 12 , 
47: EXT_FAT16_INT13 = 14 , 
48: WIN95_EXT = 15 , 
49: OPUS = 16 , 
50: FAT_12_HIDDEN = 17 , 
51: COMPAQ_DIAG = 18 , 
52: FAT_16_HIDDEN_INF32MB = 20 , 
53: FAT_16_HIDDEN = 22 , 
54: NTFS_HPFS_HIDDEN = 23 , 
55: VENIX = 64 , 
56: NOVEL0 = 81 , 
57: MICROPORT = 82 , 
58: GNU_HURD = 99 , 
59: NOVEL1 = 100 , 
60: PC_IX = 117 , 
61: MINUX_OLD = 128 , 
62: MINUX_LINUX = 129 , 
63: LINUX_SWAP = 130 , 
64: LINUX_NATIVE = 131 , 
65: AMOEBA = 147 , 
66: AMOEBA_BBT = 148 , 
67: BSD_386 = 165 , 
68: BSDI_FS = 183 , 
69: BSDI_SWAP = 184 , 
70: SYRINX = 199 , 
71: CP_M = 219 , 
72: ACCESS_DOS = 225 , 
73: DOS_R_O = 227 , 
74: DOS_SECONDARY = 242 , 
75: BBT = 255 
76: } SYSTEMID ; 
77: 
78: 
79: typedef enum < uchar > tagBOOTINDICATOR 
80: { 
81: NOBOOT = 0 , 
82: SYSTEM_PARTITION = 128 , 
83: } BOOTINDICATOR ; 
84: 
85: 
86: typedef struct PART_ENTRY 
87: { 
88: BOOTINDICATOR BootIndicator ; 
89: UBYTE StartingHead ; 
90: WORD StartingSectCylinder ; 
91: SYSTEMID SystemID ; 
92: UBYTE EndingHead ; 
93: WORD EndingSectCylinder ; 
94: DWORD RelativeSector ; 
95: DWORD TotalSectors ; 
96: } PART_ENTRY ; 
97: 
98: 
99: struct MASTER_BOOT_RECORD 
100: { 
101: UBYTE BootCode [ 446 ] ; 
102: PART_ENTRY partitions [ 4 ] ; 
103: WORD EndOfSectorMarker < format = hex > ; 
104: } ; 
105: 
106: 
107: 
108: 
109: struct BOOTSECTOR_FAT16 
110: { 
111: UBYTE jmp [ 3 ] ; 
112: CHAR OemName [ 8 ] ; 
113: 
114: typedef struct BPB_FAT16 
115: { 
116: USHORT BytesPerSector ; 
117: UBYTE SectorsPerCluster ; 
118: USHORT ReservedSectors ; 
119: UBYTE NumberOfCopiesOfFats ; 
120: USHORT MaxRootDirEntries ; 
121: USHORT NumberOfSectors ; 
122: UBYTE MediaDescriptor ; 
123: USHORT SectorsPerFAT ; 
124: USHORT SectorsPerTrack ; 
125: USHORT NumHeadsPerCylinder ; 
126: ULONG NumHiddenSectors ; 
127: ULONG NumSectorInPartition ; 
128: } ; 
129: BPB_FAT16 bpb_fat16 ; 
130: USHORT LogicDriveNumber ; 
131: UBYTE extBootSignature < format = hex > ; 
132: ULONG SerialNumber ; 
133: CHAR VolumeLabel [ 11 ] ; 
134: CHAR FileSystem [ 8 ] ; 
135: UBYTE ExecutableCode [ 448 ] ; 
136: WORD EndOfSectorMarker < format = hex > ; 
137: } ; 
138: 
139: 
140: 
141: 
142: typedef enum < ushort > tagMEDIATYPE 
143: { 
144: HARD_DISK = 0xFFF8 , 
145: FLOPPY_DISK = 0xFFF0 
146: } MEDIATYPE ; 
147: 
148: typedef enum < ushort > tagPARTITIONSTATE 
149: { 
150: PARTITION_NOT_IN_USE = 0xFFFF , 
151: PARTITION_IN_USE = 0xFFF7 
152: } PARTITIONSTATE ; 
153: 
154: typedef enum < ushort > tagCLUSTERINFO 
155: { 
156: FREE_CLUSTER = 0x0 , 
157: RESERVED_0001 = 0x1 , 
158: RESERVED_FFF0 = 0xFFF0 , 
159: RESERVED_FFF1 = 0xFFF1 , 
160: RESERVED_FFF2 = 0xFFF2 , 
161: RESERVED_FFF3 = 0xFFF3 , 
162: RESERVED_FFF4 = 0xFFF4 , 
163: RESERVED_FFF5 = 0xFFF5 , 
164: RESERVED_FFF6 = 0xFFF6 , 
165: BAD_CLUSTER = 0xFFF7 , 
166: USED_LAST_CLUSTER_FFF8 = 0xFFF8 , 
167: USED_LAST_CLUSTER_FFF9 = 0xFFF9 , 
168: USED_LAST_CLUSTER_FFFA = 0xFFFA , 
169: USED_LAST_CLUSTER_FFFB = 0xFFFB , 
170: USED_LAST_CLUSTER_FFFC = 0xFFFC , 
171: USED_LAST_CLUSTER_FFFD = 0xFFFD , 
172: USED_LAST_CLUSTER_FFFE = 0xFFFE , 
173: USED_LAST_CLUSTER_FFFF = 0xFFFF 
174: } CLUSTERINFO ; 
175: 
176: void FAT16_FAT_Table ( quad FilePosStartFatTable , quad SizeOfFatTableInSectors , UBYTE NumberOfCopiesOfFats ) 
177: { 
178: SizeOfEach_ClusterEntry_InBytes = 2 ; 
179: 
180: FSeek ( FilePosStartFatTable ) ; 
181: 
182: if ( NumberOfCopiesOfFats == 1 ) 
183: { 
184: MEDIATYPE FAT16_MediaType ; 
185: PARTITIONSTATE FAT16_PartitionState ; 
186: CLUSTERINFO FAT16_Cluster [ ( ( ( SizeOfFatTableInSectors * 512 ) / SizeOfEach_ClusterEntry_InBytes ) - SizeOfEach_ClusterEntry_InBytes ) ] ; 
187: } else if ( NumberOfCopiesOfFats == 2 ) 
188: { 
189: 
190: MEDIATYPE FAT16_MediaType_FAT1 ; 
191: PARTITIONSTATE FAT16_PartitionState_FAT1 ; 
192: CLUSTERINFO FAT16_Cluster_FAT1 [ ( ( ( ( SizeOfFatTableInSectors * 512 ) / SizeOfEach_ClusterEntry_InBytes ) - SizeOfEach_ClusterEntry_InBytes ) / NumberOfCopiesOfFats ) - 1 ] ; 
193: 
194: MEDIATYPE FAT16_MediaType_FAT2 ; 
195: PARTITIONSTATE FAT16_PartitionState_FAT2 ; 
196: CLUSTERINFO FAT16_Cluster_FAT2 [ ( ( ( ( SizeOfFatTableInSectors * 512 ) / SizeOfEach_ClusterEntry_InBytes ) - SizeOfEach_ClusterEntry_InBytes ) / NumberOfCopiesOfFats ) - 1 ] ; 
197: } 
198: } 
199: 
200: 
201: 
202: 
203: 
204: typedef enum < uchar > tagAttribute 
205: { 
206: NoneOrFile = 0 , 
207: ReadOnly = 1 , 
208: Hidden = 2 , 
209: ReadOnlyHidden = 3 , 
210: System = 4 , 
211: ReadOnlySystem = 5 , 
212: HiddenSystem0 = 6 , 
213: ReadOnlyHiddenSystem = 7 , 
214: VolumeID = 8 , 
215: ReadOnlyVolume = 9 , 
216: HiddenSystem1 = 10 , 
217: ReadOnlySystemVolume0 = 11 , 
218: SystemVolume = 12 , 
219: ReadOnlySystemVolume1 = 13 , 
220: HiddenSystemVolume = 14 , 
221: LFN_Entry = 15 , 
222: Directory = 16 , 
223: Archive = 32 , 
224: ArchiveReadOnly = 33 , 
225: ArchiveHidden = 34 
226: } ATTR ; 
227: 
228: typedef struct tagTime 
229: { 
230: USHORT Sec : 5 ; 
231: USHORT Min : 6 ; 
232: USHORT Hour : 5 ; 
233: } tTIME ; 
234: 
235: typedef struct tagDate 
236: { 
237: USHORT Day : 5 ; 
238: USHORT Month : 4 ; 
239: USHORT YearSince1980 : 7 ; 
240: } tDATE ; 
241: 
242: typedef struct ShortEntry 
243: { 
244: CHAR Name [ 8 ] ; 
245: CHAR Extension [ 3 ] ; 
246: ATTR Attribute ; 
247: UBYTE Reserved ; 
248: UBYTE CreateTime10ms ; 
249: tTIME CreateTime ; 
250: tDATE CreateDate ; 
251: tDATE AccessDate ; 
252: USHORT HCluster ; 
253: tTIME UpdateTime ; 
254: tDATE UpdateDate ; 
255: USHORT Cluster ; 
256: ULONG FileSizeInBytes ; 
257: } SHORTENTRY < read = Read_SHORT_DIR_ENTRY > ; 
258: 
259: unsigned char FAT16_Attribute ( ATTR Attribute , string & stmp ) 
260: { 
261: unsigned char volume = 0 ; 
262: 
263: switch ( Attribute ) 
264: { 
265: case NoneOrFile : 
266: stmp = "NoneOrFile" ; 
267: break ; 
268: 
269: case ReadOnly : 
270: stmp = "ReadOnly" ; 
271: break ; 
272: 
273: case Hidden : 
274: stmp = "Hidden" ; 
275: break ; 
276: 
277: case ReadOnlyHidden : 
278: stmp = "ReadOnlyHidden" ; 
279: break ; 
280: 
281: case System : 
282: stmp = "System" ; 
283: volume = 1 ; 
284: break ; 
285: 
286: case ReadOnlySystem : 
287: stmp = "ReadOnlySystem" ; 
288: volume = 1 ; 
289: break ; 
290: 
291: case HiddenSystem0 : 
292: stmp = "HiddenSystem0" ; 
293: volume = 1 ; 
294: break ; 
295: 
296: case ReadOnlyHiddenSystem : 
297: stmp = "ReadOnlyHiddenSystem" ; 
298: volume = 1 ; 
299: break ; 
300: 
301: case VolumeID : 
302: stmp = "VolumeID" ; 
303: volume = 1 ; 
304: break ; 
305: 
306: case ReadOnlyVolume : 
307: stmp = "ReadOnlyVolume" ; 
308: volume = 1 ; 
309: break ; 
310: 
311: case HiddenSystem1 : 
312: stmp = "HiddenSystem1" ; 
313: break ; 
314: 
315: case ReadOnlySystemVolume0 : 
316: stmp = "ReadOnlySystemVolume0" ; 
317: break ; 
318: 
319: case SystemVolume : 
320: stmp = "SystemVolume" ; 
321: volume = 1 ; 
322: break ; 
323: 
324: case ReadOnlySystemVolume1 : 
325: stmp = "ReadOnlySystemVolume1" ; 
326: volume = 1 ; 
327: break ; 
328: 
329: case HiddenSystemVolume : 
330: stmp = "HiddenSystemVolume" ; 
331: volume = 1 ; 
332: break ; 
333: 
334: case LFN_Entry : 
335: stmp = "LFN_Entry" ; 
336: break ; 
337: 
338: case Directory : 
339: stmp = "Directory" ; 
340: volume = 1 ; 
341: break ; 
342: 
343: case Archive : 
344: stmp = "Archive" ; 
345: break ; 
346: 
347: case ArchiveReadOnly : 
348: stmp = "ArchiveReadOnly" ; 
349: break ; 
350: 
351: case ArchiveHidden : 
352: stmp = "ArchiveHidden" ; 
353: break ; 
354: 
355: default : 
356: stmp = "Unknown" ; 
357: volume = 1 ; 
358: break ; 
359: } 
360: return volume ; 
361: } 
362: 
363: string Read_SHORT_DIR_ENTRY ( SHORTENTRY & f ) 
364: { 
365: string s ; 
366: string stmp ; 
367: unsigned char volume = 0 ; 
368: 
369: s = "" ; 
370: if ( f . Name [ 0 ] == 0 ) 
371: { 
372: return "Last Dir Entry Empty" ; 
373: } 
374: 
375: 
376: volume = FAT16_Attribute ( f . Attribute , stmp ) ; 
377: s += stmp ; 
378: 
379: if ( volume ) 
380: { 
381: SPrintf ( stmp , "=%08s%03s" , f . Name , f . Extension ) ; 
382: s += stmp ; 
383: } else 
384: { 
385: SPrintf ( stmp , "=%08s.%03s" , f . Name , f . Extension ) ; 
386: s += stmp ; 
387: } 
388: return s ; 
389: } 
390: 
391: typedef struct tagLFN_RecordSeqNum 
392: { 
393: UBYTE LFN_RecSeqNum : 6 ; 
394: UBYTE Last_LFN_record : 1 ; 
395: UBYTE LFN_Erased : 1 ; 
396: } tLFN_RecordSeqNum ; 
397: 
398: local string sconv ; 
399: local unsigned short iconv ; 
400: string Conv_UnicodeToASCII ( char data [ ] , unsigned short totalsize_inbyte ) 
401: { 
402: sconv = "" ; 
403: for ( iconv = 0 ; iconv < totalsize_inbyte ; iconv += 2 ) 
404: { 
405: if ( data [ iconv ] != - 1 ) 
406: { 
407: sconv += data [ iconv ] ; 
408: } 
409: } 
410: return sconv ; 
411: } 
412: 
413: local string s_longentry ; 
414: 
415: typedef struct LongEntry 
416: { 
417: 
418: 
419: 
420: typedef struct internalLongEntry 
421: { 
422: typedef union ulfn 
423: { 
424: tLFN_RecordSeqNum LFN_RecordSeqNum ; 
425: unsigned char char0 ; 
426: } ULFN ; 
427: ULFN LFN ; 
428: char UnicodeChar1 [ 10 ] ; 
429: ATTR Attribute ; 
430: UBYTE Reserved ; 
431: UBYTE ChkShortName ; 
432: char UnicodeChar2 [ 12 ] ; 
433: USHORT Cluster ; 
434: char UnicodeChar3 [ 4 ] ; 
435: } ILONGENTRY ; 
436: 
437: local unsigned char NumberOfLFNEntry ; 
438: local unsigned char dirname0 ; 
439: dirname0 = ReadByte ( FTell ( ) ) ; 
440: if ( ! ( dirname0 == 0x0 ) ) 
441: { 
442: if ( dirname0 == 0xE5 ) 
443: { 
444: for ( i = 0 ; i < 63 ; i ++ ) 
445: { 
446: dirname0 = ReadByte ( FTell ( ) ) ; 
447: if ( ! ( dirname0 == 0xE5 ) ) 
448: break ; 
449: 
450: if ( ReadByte ( FTell ( ) + 11 ) != 0xF ) 
451: break ; 
452: 
453: ILONGENTRY long_entry ; 
454: } 
455: } else 
456: { 
457: ILONGENTRY long_entry ; 
458: NumberOfLFNEntry = long_entry . LFN . LFN_RecordSeqNum . LFN_RecSeqNum - 1 ; 
459: for ( i = 0 ; i < NumberOfLFNEntry ; i ++ ) 
460: { 
461: ILONGENTRY long_entry ; 
462: } 
463: } 
464: } 
465: } LONGENTRY < read = Read_LONG_DIR_ENTRY > ; 
466: 
467: string Read_LONG_DIR_ENTRY ( LONGENTRY & f ) 
468: { 
469: local unsigned short i ; 
470: local unsigned short NumberOfLFNEntry ; 
471: local string str ; 
472: 
473: str = "" ; 
474: 
475: if ( f . long_entry [ 0 ] . LFN . LFN_RecordSeqNum . LFN_Erased == 1 ) 
476: { 
477: 
478: str += "Erased name:" ; 
479: 
480: for ( i = 0 ; i < 63 ; i ++ ) 
481: { 
482: if ( exists ( f . long_entry [ i ] . LFN . char0 ) ) 
483: { 
484: if ( f . long_entry [ i ] . LFN . char0 != 0xE5 ) 
485: { 
486: break ; 
487: } 
488: } else 
489: { 
490: break ; 
491: } 
492: } 
493: NumberOfLFNEntry = i - 1 ; 
494: } else 
495: { 
496: 
497: str += "Name:" ; 
498: NumberOfLFNEntry = f . long_entry [ 0 ] . LFN . LFN_RecordSeqNum . LFN_RecSeqNum - 1 ; 
499: } 
500: for ( i = NumberOfLFNEntry ; i > 0 ; i -- ) 
501: { 
502: str += Conv_UnicodeToASCII ( f . long_entry [ i ] . UnicodeChar1 , 10 ) ; 
503: str += Conv_UnicodeToASCII ( f . long_entry [ i ] . UnicodeChar2 , 12 ) ; 
504: str += Conv_UnicodeToASCII ( f . long_entry [ i ] . UnicodeChar3 , 4 ) ; 
505: } 
506: str += Conv_UnicodeToASCII ( f . long_entry [ 0 ] . UnicodeChar1 , 10 ) ; 
507: str += Conv_UnicodeToASCII ( f . long_entry [ 0 ] . UnicodeChar2 , 12 ) ; 
508: str += Conv_UnicodeToASCII ( f . long_entry [ 0 ] . UnicodeChar3 , 4 ) ; 
509: return str ; 
510: } 
511: 
512: 
513: 
514: 
515: 
516: 
517: 
518: 
519: 
520: 
521: 
522: 
523: 
524: 
525: 
526: 
527: void FAT16_Directory_Entry ( quad FilePosStartDirectoryEntry ) 
528: { 
529: FSeek ( FilePosStartDirectoryEntry ) ; 
530: i = 0 ; 
531: while ( 1 ) 
532: { 
533: if ( ReadByte ( FTell ( ) + 11 ) == 0xF ) 
534: { 
535: LONGENTRY fat16_long_direntry ; 
536: } else 
537: { 
538: SHORTENTRY fat16_short_direntry ; 
539: if ( fat16_short_direntry . Name [ 0 ] == 0 && fat16_short_direntry . Name [ 1 ] == 0 ) 
540: { 
541: break ; 
542: } 
543: } 
544: } 
545: } 
546: 
547: 
548: 
549: 
550: struct BOOTSECTOR_FAT32 
551: { 
552: BYTE jmp [ 3 ] ; 
553: CHAR OemName [ 8 ] ; 
554: 
555: typedef struct BPB_FAT32 
556: { 
557: WORD BytesPerSector ; 
558: BYTE SectorsPerCluster ; 
559: WORD ReservedSectors ; 
560: BYTE NumberOfFATs ; 
561: WORD RootEntries ; 
562: WORD TotalSectors ; 
563: BYTE Media ; 
564: WORD SectorsPerFAT ; 
565: WORD SectorsPerTrack ; 
566: WORD HeadsPerCylinder ; 
567: DWORD HiddenSectors ; 
568: DWORD TotalSectorsBig ; 
569: DWORD SectorsPerFAT ; 
570: WORD Flags ; 
571: WORD Version ; 
572: DWORD RootCluster ; 
573: WORD InfoSector ; 
574: WORD BootBackupStart ; 
575: BYTE Reserved [ 12 ] ; 
576: } ; 
577: 
578: BPB_FAT32 bpb_fat32 ; 
579: 
580: BYTE DriveNumber ; 
581: BYTE Unused ; 
582: BYTE ExtBootSignature < format = hex > ; 
583: DWORD SerialNumber ; 
584: CHAR VolumeLabel [ 11 ] ; 
585: CHAR FileSystem [ 8 ] ; 
586: CHAR BootCode [ 420 ] ; 
587: WORD EndOfSectorMarker < format = hex > ; 
588: } ; 
589: 
590: 
591: 
592: 
593: 
594: 
595: 
596: 
597: 
598: typedef enum < ulong > tagMEDIATYPE_FAT32 
599: { 
600: HARD_DISK_FAT32 = 0xFFFFFF8 , 
601: FLOPPY_DISK_FAT32 = 0xFFFFFF0 
602: } MEDIATYPE_FAT32 ; 
603: 
604: typedef enum < ulong > tagPARTITIONSTATE_FAT32 
605: { 
606: PARTITION_NOT_IN_USE_FAT32 = 0xFFFFFFFF , 
607: PARTITION_IN_USE_FAT32 = 0xFFFFFFF7 
608: } PARTITIONSTATE_FAT32 ; 
609: 
610: typedef enum < ulong > tagCLUSTERINFO_FAT32 
611: { 
612: FREE_CLUSTER_FAT32 = 0x0 , 
613: RESERVED_0001_FAT32 = 0x1 , 
614: RESERVED_FFF0_FAT32 = 0xFFFFFF0 , 
615: RESERVED_FFF1_FAT32 = 0xFFFFFF1 , 
616: RESERVED_FFF2_FAT32 = 0xFFFFFF2 , 
617: RESERVED_FFF3_FAT32 = 0xFFFFFF3 , 
618: RESERVED_FFF4_FAT32 = 0xFFFFFF4 , 
619: RESERVED_FFF5_FAT32 = 0xFFFFFF5 , 
620: RESERVED_FFF6_FAT32 = 0xFFFFFF6 , 
621: BAD_CLUSTER_FAT32 = 0xFFFFFF7 , 
622: USED_LAST_CLUSTER_FFF8_FAT32 = 0xFFFFFF8 , 
623: USED_LAST_CLUSTER_FFF9_FAT32 = 0xFFFFFF9 , 
624: USED_LAST_CLUSTER_FFFA_FAT32 = 0xFFFFFFA , 
625: USED_LAST_CLUSTER_FFFB_FAT32 = 0xFFFFFFB , 
626: USED_LAST_CLUSTER_FFFC_FAT32 = 0xFFFFFFC , 
627: USED_LAST_CLUSTER_FFFD_FAT32 = 0xFFFFFFD , 
628: USED_LAST_CLUSTER_FFFE_FAT32 = 0xFFFFFFE , 
629: USED_LAST_CLUSTER_FFFF_FAT32 = 0xFFFFFFF 
630: } CLUSTERINFO_FAT32 ; 
631: 
632: void FAT32_FAT_Table ( quad FilePosStartFatTable , quad SizeOfFatTableInSectors , UBYTE NumberOfCopiesOfFats ) 
633: { 
634: local unsigned char SizeOfEach_ClusterEntry_InBytes ; 
635: SizeOfEach_ClusterEntry_InBytes = 4 ; 
636: 
637: FSeek ( FilePosStartFatTable ) ; 
638: 
639: if ( NumberOfCopiesOfFats == 1 ) 
640: { 
641: MEDIATYPE_FAT32 FAT32_MediaType ; 
642: PARTITIONSTATE_FAT32 FAT32_PartitionState ; 
643: CLUSTERINFO_FAT32 FAT32_Cluster [ ( ( ( SizeOfFatTableInSectors * 512 ) / SizeOfEach_ClusterEntry_InBytes ) - SizeOfEach_ClusterEntry_InBytes ) ] ; 
644: 
645: } else if ( NumberOfCopiesOfFats == 2 ) 
646: { 
647: MEDIATYPE_FAT32 FAT32_MediaType_FAT1 ; 
648: PARTITIONSTATE_FAT32 FAT32_PartitionState_FAT1 ; 
649: CLUSTERINFO_FAT32 FAT32_Cluster_FAT1 [ ( ( ( ( SizeOfFatTableInSectors * 512 ) / SizeOfEach_ClusterEntry_InBytes ) - SizeOfEach_ClusterEntry_InBytes ) / NumberOfCopiesOfFats ) - 0 ] ; 
650: 
651: MEDIATYPE_FAT32 FAT32_MediaType_FAT2 ; 
652: PARTITIONSTATE_FAT32 FAT32_PartitionState_FAT2 ; 
653: CLUSTERINFO_FAT32 FAT32_Cluster_FAT2 [ ( ( ( ( SizeOfFatTableInSectors * 512 ) / SizeOfEach_ClusterEntry_InBytes ) - SizeOfEach_ClusterEntry_InBytes ) / NumberOfCopiesOfFats ) - 0 ] ; 
654: } 
655: } 
656: 
657: void FAT32_Directory_Entry ( quad FilePosStartDirectoryEntry ) 
658: { 
659: FSeek ( FilePosStartDirectoryEntry ) ; 
660: i = 0 ; 
661: while ( 1 ) 
662: { 
663: if ( ReadByte ( FTell ( ) + 11 ) == 0xF ) 
664: { 
665: LONGENTRY fat32_long_direntry ; 
666: } else 
667: { 
668: SHORTENTRY fat32_short_direntry ; 
669: if ( fat32_short_direntry . Name [ 0 ] == 0 && fat32_short_direntry . Name [ 1 ] == 0 ) 
670: { 
671: break ; 
672: } 
673: } 
674: } 
675: } 
676: 
677: 
678: 
679: 
680: 
681: struct BOOTSECTOR_NTFS 
682: { 
683: BYTE jmp [ 3 ] ; 
684: CHAR OEMName [ 8 ] ; 
685: 
686: typedef struct BPB_NTFS 
687: { 
688: WORD BytesPerSector ; 
689: BYTE SectorsPerCluster ; 
690: WORD ReservedSectors ; 
691: BYTE Zero [ 3 ] ; 
692: WORD NotUsed ; 
693: BYTE MediaDescriptor ; 
694: WORD Zero ; 
695: WORD SectorsPerTrack ; 
696: WORD HeadsPerCylinder ; 
697: DWORD HiddenSectors ; 
698: DWORD NotUsed ; 
699: DWORD NotUsed ; 
700: UQUAD TotalSectors ; 
701: UQUAD LogicalClusterMFT ; 
702: UQUAD LogicalClusterMFTMiror ; 
703: DWORD ClustersPerFileRecSegment ; 
704: DWORD ClustersPerIndexBlock ; 
705: UQUAD SerialNumber ; 
706: DWORD Checksum ; 
707: } ; 
708: 
709: BPB_NTFS bpb_ntfs ; 
710: BYTE BootCode [ 426 ] ; 
711: WORD EndOfSectorMarker < format = hex > ; 
712: } ; 
713: 
714: typedef union boot 
715: { 
716: struct MASTER_BOOT_RECORD mbr ; 
717: struct BOOTSECTOR_FAT16 boot_fat16 ; 
718: struct BOOTSECTOR_FAT32 boot_fat32 ; 
719: struct BOOTSECTOR_NTFS boot_ntfs ; 
720: } ; 
721: 
722: 
723: void FAT16CheckInit ( SYSTEMID SystemID ) 
724: { 
725: if ( SystemID == FAT_16_INF32MB || 
726: SystemID == FAT_16 || 
727: SystemID == EXT_FAT16_INT13 
728: ) 
729: { 
730: CurrentPosSector = FTell ( ) / 512 ; 
731: 
732: BOOTSECTOR_FAT16 detected_fat16 ; 
733: 
734: FATTableSector = CurrentPosSector + detected_fat16 . bpb_fat16 . ReservedSectors ; 
735: 
736: RootDirEntrySector = CurrentPosSector + detected_fat16 . bpb_fat16 . ReservedSectors + 
737: ( detected_fat16 . bpb_fat16 . SectorsPerFAT * 2 ) ; 
738: RootDirEntryFilePos = RootDirEntrySector * 512 ; 
739: 
740: FATTableFilePos = FATTableSector * 512 ; 
741: FATTableSizeInSectors = RootDirEntrySector - FATTableSector ; 
742: 
743: 
744: FAT16_FAT_Table ( FATTableFilePos , FATTableSizeInSectors , detected_fat16 . bpb_fat16 . NumberOfCopiesOfFats ) ; 
745: 
746: 
747: FAT16_Directory_Entry ( RootDirEntryFilePos ) ; 
748: 
749: DataAreaSector = CurrentPosSector + detected_fat16 . bpb_fat16 . ReservedSectors + 
750: ( detected_fat16 . bpb_fat16 . SectorsPerFAT * 2 ) + 
751: ( ( detected_fat16 . bpb_fat16 . MaxRootDirEntries * 32 ) / detected_fat16 . bpb_fat16 . BytesPerSector ) ; 
752: DataAreaFilePos = DataAreaSector * 512 ; 
753: 
754: 
755: } 
756: } 
757: 
758: void FAT32CheckInit ( SYSTEMID SystemID ) 
759: { 
760: if ( SystemID == PRI_FAT32_INT13 || 
761: SystemID == EXT_FAT32_INT13 
762: ) 
763: { 
764: CurrentPosSector = FTell ( ) / 512 ; 
765: 
766: struct BOOTSECTOR_FAT32 detected_fat32 ; 
767: 
768: FATTableSector = CurrentPosSector + detected_fat32 . bpb_fat32 . ReservedSectors ; 
769: 
770: RootDirEntrySector = CurrentPosSector + detected_fat32 . bpb_fat32 . ReservedSectors + 
771: ( detected_fat32 . bpb_fat32 . SectorsPerFAT * 2 ) ; 
772: RootDirEntryFilePos = RootDirEntrySector * 512 ; 
773: 
774: FATTableFilePos = FATTableSector * 512 ; 
775: FATTableSizeInSectors = RootDirEntrySector - FATTableSector ; 
776: 
777: 
778: FAT32_FAT_Table ( FATTableFilePos , FATTableSizeInSectors , detected_fat32 . bpb_fat32 . NumberOfFATs ) ; 
779: 
780: 
781: FAT32_Directory_Entry ( RootDirEntryFilePos ) ; 
782: } 
783: } 
784: 
785: 
786: 
787: 
788: typedef struct _FATStruct 
789: { 
790: local unsigned short mbr_boot_ok = 0 ; 
791: local quad FATTableSector ; 
792: local quad FATTableFilePos ; 
793: local quad FATTableSizeInSectors ; 
794: 
795: local quad RootDirEntrySector ; 
796: local quad RootDirEntryFilePos ; 
797: 
798: 
799: if ( ReadUShort ( 510 ) == 0xAA55 ) 
800: { 
801: boot boot_sect ; 
802: local unsigned short i ; 
803: 
804: for ( i = 0 ; i < 4 ; i ++ ) 
805: { 
806: if ( ( boot_sect . mbr . partitions [ i ] . BootIndicator == SYSTEM_PARTITION || 
807: boot_sect . mbr . partitions [ i ] . BootIndicator == NOBOOT ) && 
808: boot_sect . mbr . partitions [ i ] . SystemID != EMPTY 
809: ) 
810: { 
811: if ( mbr_boot_ok == 0 ) 
812: { 
813: FSeek ( 0 ) ; 
814: MASTER_BOOT_RECORD detected_mbr ; 
815: mbr_boot_ok = 1 ; 
816: } 
817: 
818: FSeek ( boot_sect . mbr . partitions [ i ] . RelativeSector * 512 ) ; 
819: 
820: FAT16CheckInit ( boot_sect . mbr . partitions [ i ] . SystemID ) ; 
821: FAT32CheckInit ( boot_sect . mbr . partitions [ i ] . SystemID ) ; 
822: } 
823: } 
824: 
825: if ( boot_sect . boot_fat16 . FileSystem == "FAT16   " ) 
826: { 
827: FSeek ( 0 ) ; 
828: BOOTSECTOR_FAT16 detected_fat16 ; 
829: 
830: FATTableSector = 0 + detected_fat16 . bpb_fat16 . ReservedSectors ; 
831: 
832: RootDirEntrySector = 0 + detected_fat16 . bpb_fat16 . ReservedSectors + 
833: ( detected_fat16 . bpb_fat16 . SectorsPerFAT * 2 ) ; 
834: RootDirEntryFilePos = RootDirEntrySector * 512 ; 
835: 
836: FATTableFilePos = FATTableSector * 512 ; 
837: FATTableSizeInSectors = RootDirEntrySector - FATTableSector ; 
838: 
839: 
840: FAT16_FAT_Table ( FATTableFilePos , FATTableSizeInSectors , detected_fat16 . bpb_fat16 . NumberOfCopiesOfFats ) ; 
841: 
842: 
843: FAT16_Directory_Entry ( RootDirEntryFilePos ) ; 
844: 
845: DataAreaSector = 0 + detected_fat16 . bpb_fat16 . ReservedSectors + 
846: ( detected_fat16 . bpb_fat16 . SectorsPerFAT * 2 ) + 
847: ( ( detected_fat16 . bpb_fat16 . MaxRootDirEntries * 32 ) / detected_fat16 . bpb_fat16 . BytesPerSector ) ; 
848: DataAreaFilePos = DataAreaSector * 512 ; 
849: 
850: 
851: } 
852: 
853: if ( boot_sect . boot_fat32 . FileSystem == "FAT32   " ) 
854: { 
855: FSeek ( 0 ) ; 
856: struct BOOTSECTOR_FAT32 detected_fat32 ; 
857: 
858: FATTableSector = 0 + detected_fat32 . bpb_fat32 . ReservedSectors ; 
859: 
860: RootDirEntrySector = 0 + detected_fat32 . bpb_fat32 . ReservedSectors + 
861: ( detected_fat32 . bpb_fat32 . SectorsPerFAT * 2 ) ; 
862: RootDirEntryFilePos = RootDirEntrySector * 512 ; 
863: 
864: FATTableFilePos = FATTableSector * 512 ; 
865: FATTableSizeInSectors = RootDirEntrySector - FATTableSector ; 
866: 
867: 
868: FAT32_FAT_Table ( FATTableFilePos , FATTableSizeInSectors , detected_fat32 . bpb_fat32 . NumberOfFATs ) ; 
869: 
870: 
871: FAT32_Directory_Entry ( RootDirEntryFilePos ) ; 
872: 
873: } 
874: 
875: 
876: 
877: } else 
878: { 
879: 
880: 
881: 
882: 
883: } 
884: } MBR_FAT ; 
885: 
886: MBR_FAT mbr_fat ; 
887: 
888: tok_eof