public Fat16Partition(PartitionInfo info)
{
_info = base.info = info;
diskFileName = String.Format("\\\\.\\{0}:", info.Letter);
rootDirectoryName = String.Format("{0}:\\", info.Letter);
bytesPerSector = GetBytesPerSector();
diskFile = new UnmanagedFile(diskFileName);
byte[] fatInfo = diskFile.ReadFile((uint)bytesPerSector);
fatCopiesNumber = fatInfo.AsWord(16);
fatSize = fatInfo.AsWord(22);
reservedAreaSize = fatInfo.AsWord(14);
sectorsPerCluster = fatInfo.AsByte(13);
fatAddress = reservedAreaSize;
rootDirectoryEntities = fatInfo.AsWord(17);
rootDirectorySector = reservedAreaSize + (fatCopiesNumber * fatSize);
bitsPerSector = GetBitsNumber(bytesPerSector);
bytesPerCluster = bytesPerSector * sectorsPerCluster;
fatContentSize = (uint)(fatSize * bytesPerSector);
fatContent = LoadFatContent();
info.FreeSpace = GetFreeDiskSpace();
currentDirectory = new FatDirectoryObject
{
Name = String.Empty,
Type = DirectoryObjectType.Directory,
Cluster = 0
};
directoryStack.Push(currentDirectory);
LoadCurrentDirectoryObjects();
}
void Initialize()
{
int hddNumber = ...;
int partitionAddress = ...;
string hardDriveName = "\\\\.\\PHYSICALDRIVE" + hddNumber;
diskFile = new UnmanagedFile(hardDriveName);
bytesPerSector = GetBytesPerSector();
bitsPerSector = GetBitsNumber(bytesPerSector);
diskFile.MovePointer(partitionAddress << bitsPerSector,
partitionAddress >> (32 - bitsPerSector));
byte[] fatInfo = diskFile.ReadFile(bytesPerSector);
fatCopiesNumber = fatInfo.AsWord(16);
fatSize = fatInfo.AsWord(22);
reservedAreaSize = fatInfo.AsWord(14);
sectorsPerCluster = fatInfo.AsByte(13);
fatAddress = reservedAreaSize;
rootDirectoryEntities = fatInfo.AsWord(17);
rootDirectorySector = reservedAreaSize + (fatCopiesNumber * fatSize);
bytesPerCluster = bytesPerSector * sectorsPerCluster;
fatContentSize = (uint)(fatSize * bytesPerSector);
fatContent = LoadFatContent();
contents = LoadCurrentDirectoryObjects().ToList();
}
private byte[] ReadMbr()
{
int size = _sectorSize != 0 ? _sectorSize : 0x200;
var buffer = _handle.ReadFile((uint)size);
if (size != _sectorSize)
{
int i = size;
int n = 0;
while ((i = i / 2) != 0)
{
n++;
}
_bitsPerSector = n;
_sectorSize = size;
}
return(buffer);
}
byte[] LoadFatContent()
{
diskFile.MovePointer(fatAddress << bitsPerSector);
return(diskFile.ReadFile(fatContentSize));
}
void Initialize()
{
int hddNumber = ...;
int partitionAddress = ...;
string hardDriveName = "\\\\.\\PHYSICALDRIVE" + hddNumber;
diskFile = new UnmanagedFile(hardDriveName);
bytesPerSector = GetBytesPerSector();
bitsPerSector = GetBitsNumber(bytesPerSector);
diskFile.MovePointer(partitionAddress << bitsPerSector,
partitionAddress >> (32 - bitsPerSector));
byte[] fatInfo = diskFile.ReadFile(bytesPerSector);
fatCopiesNumber = fatInfo.AsWord(16);
fatSize = fatInfo.AsWord(22);
reservedAreaSize = fatInfo.AsWord(14);
sectorsPerCluster = fatInfo.AsByte(13);
fatAddress = reservedAreaSize;
rootDirectoryEntities = fatInfo.AsWord(17);
rootDirectorySector = reservedAreaSize + (fatCopiesNumber * fatSize);
bytesPerCluster = bytesPerSector * sectorsPerCluster;
fatContentSize = (uint)(fatSize * bytesPerSector);
fatContent = LoadFatContent();
contents = LoadCurrentDirectoryObjects().ToList();
}