public Fat32Partition(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(bytesPerSector);
fatCopiesNumber = fatInfo.AsWord(16);
fatSize = fatInfo.AsWord(36);
reservedAreaSize = fatInfo.AsWord(14);
sectorsPerCluster = fatInfo.AsByte(13);
fatAddress = reservedAreaSize;
rootDirectoryCluster = fatInfo.AsInt32(44);
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 = rootDirectoryCluster
};
directoryStack.Push(currentDirectory);
LoadCurrentDirectoryObjects();
}
public HardDriveInfo(int hddNumber)
{
_number = hddNumber;
_sectorSize = 0;
_extendedAreaAddress = 0;
string hardDriveName = "\\\\.\\PHYSICALDRIVE" + hddNumber;
try
{
_handle = new UnmanagedFile(hardDriveName);
byte[] mbr = ReadMbr();
if (mbr.AsWord(0x01fe) != 0xAA55)
{
throw new ErrorException("Partition is broken or not valid.");
}
var partitions = GetHddPartitions(mbr);
if (_extendedAreaAddress != 0)
{
int ext = _extendedAreaAddress;
_extendedAreaAddress = 0;
while (true)
{
int nextMbrAddress = ext + _extendedAreaAddress;
_handle.MovePointer(nextMbrAddress << _bitsPerSector, nextMbrAddress >> (32 - _bitsPerSector));
mbr = ReadMbr();
if (mbr.AsWord(0x01fe) != 0xAA55)
{
throw new ErrorException("Partition is broken or not valid.");
}
partitions.Concat(GetHddPartitions(mbr, nextMbrAddress));
if (_extendedAreaAddress == 0)
{
break;
}
}
}
Partitions = partitions;
}
catch (System.IO.FileNotFoundException)
{
Partitions = null;
}
}
