public bool hasSubDir(UInt32 clusterNum)
{
byte[] secBuff = new byte[bootSector.BPS];
byte[] directoryEntryBuff = new byte[32];
UInt64 byteAdd;
SafeFileHandle handle = WindowsAPI.Open(@"\\.\" + this.name);
do
{
byteAdd = clusterByteAddress(clusterNum);
WindowsAPI.SetFilePointer(handle, byteAdd);
int i = 64;
for (int j = 0; j < bootSector.SPC; j++)
{
secBuff = WindowsAPI.ReadFile(handle, secBuff, 0, secBuff.Length);
for (; i < bootSector.BPS; i += 32)
{
if (secBuff[i] == 0x00)
{
handle.Close();
return(false);
}
for (int f = 0; f < 32; f++)
{
directoryEntryBuff[f] = secBuff[f + i];
}
DirectoryEntry.EntryType type = DirectoryEntry.type(directoryEntryBuff);
if (type == DirectoryEntry.EntryType.Valid_short)
{
DirectoryEntry entry = new DirectoryEntry(directoryEntryBuff, null);
if (entry.attribute == DirectoryEntry.attributes.Directory)
{
return(true);
}
}
}
i = 0;
}
clusterNum = getNextChain(clusterNum);
} while (clusterNum < 0x0FFFFFF8);
return(false);
}
public DirectoryEntry[] getDirectoryData(UInt32 clusterNum)
{
byte[] secBuff = new byte[bootSector.BPS];
byte[] directoryEntryBuff = new byte[32];
Queue <DirectoryEntry> directoryEntry = new Queue <DirectoryEntry>();
UInt64 byteAdd;
//TODO : to take care if address is 64 bit;
SafeFileHandle handle = WindowsAPI.Open(@"\\.\" + this.name);
SafeFileHandle fatHandle = WindowsAPI.Open(@"\\.\" + this.name);
do
{
byteAdd = clusterByteAddress(clusterNum);
WindowsAPI.SetFilePointer(handle, byteAdd);
bool inLongSet = false;
LongDirectoryEntry longEntry = null;
for (int j = 0; j < bootSector.SPC; j++)
{
secBuff = WindowsAPI.ReadFile(handle, secBuff, 0, secBuff.Length);
for (int i = 0; i < bootSector.BPS; i += 32)
{
if (secBuff[i] == 0x00)
{
handle.Close();
fatHandle.Close();
return(directoryEntry.ToArray());
}
for (int f = 0; f < 32; f++)
{
directoryEntryBuff[f] = secBuff[f + i];
}
DirectoryEntry.EntryType type = DirectoryEntry.type(directoryEntryBuff);
if (type == DirectoryEntry.EntryType.Deleted)
{
}
else if (type == DirectoryEntry.EntryType.Valid_long)
{
if (!inLongSet)
{
inLongSet = true;
longEntry = new LongDirectoryEntry(directoryEntryBuff);
}
else
{
longEntry.merge(directoryEntryBuff);
}
}
else if (type == DirectoryEntry.EntryType.Valid_short)
{
DirectoryEntry entry = new DirectoryEntry(directoryEntryBuff, this);
if (entry.attribute != DirectoryEntry.attributes.Vollume_ID)
{
if (inLongSet)
{
longEntry.merge(entry);
}
directoryEntry.Enqueue(entry);
inLongSet = false;
}
}
}
}
clusterNum = getNextChain(clusterNum);
} while (clusterNum < 0x0FFFFFF8);
return(directoryEntry.ToArray());
}
