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+// 
+// AUTHOR
+// N. Nielsen
+//
+// VERSION
+// 0.7
+// 
+// LICENSE
+// This software is in the public domain.
+//
+// The software is provided "as is", without warranty of any kind,
+// express or implied, including but not limited to the warranties
+// of merchantability, fitness for a particular purpose, and
+// noninfringement. In no event shall the author(s) be liable for any
+// claim, damages, or other liability, whether in an action of
+// contract, tort, or otherwise, arising from, out of, or in connection
+// with the software or the use or other dealings in the software.
+// 
+// SUPPORT
+// Send bug reports to: <nielsen@memberwebs.com>
+//
+
+
+#ifndef __DRIVE_H__20010822
+#define __DRIVE_H__20010822
+
+#include "usuals.h"
+
+const uint16 kSectorSize = 0x200;
+struct DriveLock;
+
+struct PartitionInfo
+{
+	uint32 firstSector;		
+	uint32 lastSector;		
+	uint32 offMFT;			// In sectors
+	byte clusterSize;		// In sectors
+
+	DriveLock* pLocks;
+	uint32 cLocks;
+	uint32 curLock;
+};
+
+PartitionInfo* CreatePartitionInfo();
+void FreePartitionInfo(PartitionInfo* pInfo);
+
+
+#pragma pack(push, drive)
+#pragma pack(1)
+
+const byte kPartition_Invalid = 0;
+const byte kPartition_Extended = 5;
+const byte kPartition_ExtendedLBA = 15;
+
+
+// Partition table entry
+struct Drive_PartEntry
+{
+	byte active;		// partition bootable flag
+	byte starthead;		// starting head
+	byte startsector;	// starting sector and 2 MS bits of cylinder
+	byte startcylinder;	// starting cylinder (low 8 bits)
+	byte system;		// partition type
+	byte endhead;		// ending head
+	byte endsector;		// ending sector and 2 MS bits of cylinder
+	byte endcylinder;	// ending cylinder (low 8 bits)
+	uint32 startsec;	// absolute starting sector
+	uint32 endsec;		// absolute ending sector
+};
+
+const uint16 kMBR_Sig = 0xAA55;
+
+// Master Boot Record
+struct Drive_MBR
+{
+	byte fill[0x1be];			// boot code
+	Drive_PartEntry partitions[4];	// partition table
+	uint16 sig;				// 55AAh boot signature
+};
+
+#pragma pack(pop, drive)
+
+#define CLUSTER_TO_SECTOR(info, clus) (((clus) * (info).clusterSize) + (info).firstSector)
+#define SECTOR_TO_BYTES(sec) ((sec) * kSectorSize)
+#define CLUSTER_SIZE(info) ((info).clusterSize * kSectorSize)
+
+bool IntersectRange(uint64& b1, uint64& e1, uint64 b2, uint64 e2);
+void AddLocationLock(PartitionInfo* pInfo, uint64 beg, uint64 end);
+bool CheckLocationLock(PartitionInfo* pInfo, uint64& sec);
+
+
+
+#endif //__DRIVE_H__20010822
+\ No newline at end of file