private EntryData GetNewEntryData(Folder root, string Name)
{
if (m.CheckFileName(Name))
{
EntryData EData = new EntryData();
object[] ourObject = CheckIfBlocksNeeded(root);
//If we need to create a new entry...
if (!(bool)ourObject[0])
{
//Create our new entrydata that will serve as the EData for the new folder
Int32 timeStamp = m.FatTimeInt(DateTime.Now);
byte[] ourArray = BitConverter.GetBytes(timeStamp);
byte[] CD = new byte[] { ourArray[2], ourArray[3] };
byte[] CT = new byte[] { ourArray[0], ourArray[1] };
EData.CreationDate = BitConverter.ToUInt16(CD, 0);
EData.CreationTime = BitConverter.ToUInt16(CT, 0);
EData.FileName = Name;
EData.FileNameSize = (byte)Name.Length;
EData.Flags = 0x10;
EData.Size = 0x0;
//Uint for our blocks..
uint[] Blocks = new FATStuff(root).GetFreeBlocks(1, ((EntryData)ourObject[1]).StartingCluster, 0, false);
//Set our starting cluster using the "GetFreeBlocks" method - tell it we need one block, and the starting block is the block of the previous entry
EData.StartingCluster = Blocks[0];
//If we're using a block that we just created (the current block for the parent folder
//has free space
EData.EntryOffset = ((EntryData)ourObject[1]).EntryOffset;
//Create a new folder
Folder f = new Folder(ourDrive, root.PartInfo);
f.EData = EData;
f.BlocksOccupied = Blocks;
CreateNewEntry(EData);
WriteFATChain(f.BlocksOccupied, f);
}
//We are using a deleted entry
else
{
Int32 timeStamp = m.FatTimeInt(DateTime.Now);
byte[] ourArray = BitConverter.GetBytes(timeStamp);
byte[] CD = new byte[] { ourArray[0], ourArray[1] };
Array.Reverse(CD);
byte[] CT = new byte[] { ourArray[2], ourArray[3] };
Array.Reverse(CT);
EData.CreationDate = BitConverter.ToUInt16(CD, 0);
EData.CreationTime = BitConverter.ToUInt16(CT, 0);
EData.FileName = Name;
EData.FileNameSize = (byte)Name.Length;
EData.Flags = 0x10;
EData.Size = 0x0;
EData.StartingCluster = new FATStuff(root).GetFreeBlocks(1, ((EntryData)ourObject[1]).StartingCluster, 0, false)[0];
EData.EntryOffset = ((EntryData)ourObject[1]).EntryOffset;
Folder f = new Folder(ourDrive, root.PartInfo);
f.EData = EData;
CreateNewEntry(EData);
WriteFATChain(f.BlocksOccupied, f);
}
return EData;
}
throw new Exception("File name not valid");
}
private object[] CheckIfBlocksNeeded(Folder f)
{
//Create our object array that will hold our Bool and Entry for if
//we need an open block, and if there's a deleted file
//Create our entry reader so that we can get a return of entries...
Entries e = new Entries(f);
//Get our entries in the last block
EntryData[] eData = e.GetEntries(f.BlocksOccupied[f.BlocksOccupied.Length - 1]);
//Files span upon multiple blocks... Here we go to the last block that it occupies
//(the most recent block created), and check if it has any open entries
//Check for deleted entries
foreach (EntryData E in eData)
{
if (E.FileNameSize == (byte)Info.FileFlags.Deleted)
{
return new object[] { true, E };
}
}
//We didn't find a deleted entry, but we have room in the last block of the folder
//for a new entry
if (eData.Length < 100)
{
EntryData newEntry = new EntryData();
newEntry.EntryOffset = eData[eData.Length - 1].EntryOffset + 0x40;
newEntry.StartingCluster = eData[eData.Length - 1].StartingCluster;
return new object[] { false, newEntry };
}
//We don't have any deleted entries, and don't have enough room in the last block,
//so let's create a new block, add it to the FAT chain, etc.
//Get our new block...
uint nextBlock = new FATStuff(f).GetFreeBlocks(1, f.BlocksOccupied[f.BlocksOccupied.Length - 1], 0, false)[0];
//Write the fat chain
WriteFATChain(new uint[] { f.BlocksOccupied[f.BlocksOccupied.Length - 1], nextBlock}, f);
//Create our new entrydata
EntryData EntryNew = new EntryData();
EntryNew.EntryOffset = m.GetBlockOffset(nextBlock, f);
return new object[] { false, EntryNew };
}
public bool OverWriteFile(File FileToOverwrite, string FilePath, ref int Progress, ref int BlocksToWrite)
{
FATX_Browser.FATX.IOReader br = null;
//Do a try...
try
{
//Create our new fatstuff to get our free blocks
FATStuff fs = new FATStuff(FileToOverwrite);
//Get our blocks needed
int BlocksNeeded = (int)(m.UpToNearestCluster(new System.IO.FileInfo(FilePath).Length, FileToOverwrite.PartInfo.ClusterSize) / FileToOverwrite.PartInfo.ClusterSize);
//Create our block array for the blocks we do have
uint[] BlocksWeHave = FileToOverwrite.BlocksOccupied;
//If we have more blocks than we need already...
if ((int)FileToOverwrite.BlocksOccupied.Length > BlocksNeeded)
{
//Get our blocks that we're going to clear...
List<uint> BlocksList = FileToOverwrite.BlocksOccupied.ToList<uint>();
//Remove the blocks we need from the list of blocks to overwrite
BlocksList.RemoveRange(0x0, (int)((int)FileToOverwrite.BlocksOccupied.Length - BlocksNeeded));
//Finalize
uint[] BlocksToFree = BlocksList.ToArray();
//Clears the blocks.
ClearFATChain(BlocksToFree, FileToOverwrite);
//Make the final block in the series the ending block by writing 0xFFFF to it
uint EndBlock = FileToOverwrite.BlocksOccupied[(FileToOverwrite.BlocksOccupied.Length - 1) - BlocksNeeded];
if (FileToOverwrite.PartInfo.EntrySize == Info.PartitionBit.FATX16)
{
WriteBlock(EndBlock, new byte[] { 0xFF, 0xFF }, FileToOverwrite);
}
else
{
WriteBlock(EndBlock, new byte[] { 0xFF, 0xFF, 0xFF, 0xFF }, FileToOverwrite);
}
BlocksList = FileToOverwrite.BlocksOccupied.ToList<uint>();
BlocksList.RemoveRange(0x0, (FileToOverwrite.BlocksOccupied.Length - 1) - BlocksNeeded);
BlocksWeHave = BlocksList.ToArray();
}
else if ((int)FileToOverwrite.BlocksOccupied.Length < BlocksNeeded)
{
//Get the number of blocks we REALLY need
int RealBlocksNeeded = BlocksNeeded - FileToOverwrite.BlocksOccupied.Length;
//Write out the FAT chain from that last block
List<uint> bl = new List<uint>();
bl.Add(FileToOverwrite.BlocksOccupied[FileToOverwrite.BlocksOccupied.Length - 1]);
uint[] newBlocks = new FATStuff(FileToOverwrite).GetFreeBlocks(RealBlocksNeeded, bl[0], 0, false);
bl.AddRange(newBlocks);
//Set the BlocksWeHave
BlocksWeHave = bl.ToArray();
}
//Create our binary reader to read our file
br = new FATX_Browser.FATX.IOReader(new System.IO.FileStream(FilePath, System.IO.FileMode.Open));
for (int i = 0; i < BlocksWeHave.Length; i++)
{
WriteToCluster(m.GetBlockOffset(BlocksWeHave[i], FileToOverwrite), br.ReadBytes(0x200));
}
br.Close();
return true;
}
catch (Exception e)
{
try
{
br.Close();
}
catch { }
throw e;
}
}
public bool WriteNewFile(Folder Root, string FilePath, ref int Progress, ref int BlocksToWrite)
{
FATX_Browser.FATX.IOReader br = null;
//Do a try...
try
{
//Get our entry
EntryData EData = GetNewEntryData(Root, new System.IO.FileInfo(FilePath).Name);
//Create our entry in the folder
CreateNewEntry(EData);
//Create our new fatstuff to get our free blocks
FATStuff fs = new FATStuff(Root);
//Get our free blocks
uint[] blocks = fs.GetFreeBlocks((int)(m.UpToNearestCluster(new System.IO.FileInfo(FilePath).Length, Root.PartInfo.ClusterSize) / Root.PartInfo.ClusterSize), EData.StartingCluster, 0, false);
//Make a new list for the blocks...
List<uint> COCKS = blocks.ToList<uint>();
//Insert the beginning block at the 0 index
COCKS.Insert(0, EData.StartingCluster);
//Make the cocks an array
blocks = COCKS.ToArray();
//Write the FAT chain
WriteFATChain(blocks, Root);
//Create our binary reader to read our file
br = new FATX_Browser.FATX.IOReader(new System.IO.FileStream(FilePath, System.IO.FileMode.Open));
for (int i = 0; i < blocks.Length; i++)
{
WriteToCluster(m.GetBlockOffset(blocks[i], Root), br.ReadBytes(0x200));
}
br.Close();
return true;
}
catch(Exception e)
{
try
{
br.Close();
}
catch { }
throw e;
}
}
/// <summary>
/// Returns the readable partitions as folders on the drive
/// </summary>
public Folder[] Get(FATXDrive xDrive)
{
List<Folder> PIList = new List<Folder>();
if (xDrive.DriveType == Info.DriveType.HDD | xDrive.DriveType == Info.DriveType.Backup)
{
foreach (Info.HDDFATX.Partitions e in Enum.GetValues(typeof(Info.HDDFATX.Partitions)))
{
if (e == Info.HDDFATX.Partitions.Data | e == Info.HDDFATX.Partitions.Compatibility)
{
FATStuff FS = new FATStuff(xDrive, e);
if (FS.Magic() == "XTAF")
{
PartitionInfo PI = new PartitionInfo();
PI.ClusterSize = FS.ClusterSize();
PI.DataOffset = FS.DataOffset();
PI.FATCopies = FS.FATCopies();
PI.FATOffset = FS.FATOffset;
PI.FATSize = FS.FATSize();
PI.ID = FS.PartitionID();
PI.Magic = FS.Magic();
PI.Name = e.ToString();
PI.Offset = (long)e;
PI.SectorsPerCluster = FS.SectorsPerCluster();
PI.EntrySize = FS.bit;
PI.Size = FS.PartitionSize();
Folder f = new Folder(xDrive, PI);
f.EData.StartingCluster = 0;
PIList.Add(f);
}
}
}
if (PIList.Count == 0)
{
FATStuff FS = new FATStuff(xDrive, (long)0);
if (FS.Magic() == "XTAF")
{
PartitionInfo PI = new PartitionInfo();
PI.ClusterSize = FS.ClusterSize();
PI.DataOffset = FS.DataOffset();
PI.FATCopies = FS.FATCopies();
PI.FATOffset = FS.FATOffset;
PI.FATSize = FS.FATSize();
PI.ID = FS.PartitionID();
PI.Magic = FS.Magic();
PI.Name = "Root";
PI.Offset = 0x0;
PI.SectorsPerCluster = FS.SectorsPerCluster();
PI.EntrySize = FS.bit;
PI.Size = xDrive.DriveSize;
Folder f = new Folder(xDrive, PI);
PIList.Add(f);
}
}
}
else if (xDrive.DriveType == Info.DriveType.USB)
{
foreach (Info.USBOffsets e in Enum.GetValues(typeof(Info.USBOffsets)))
{
FATStuff FS = new FATStuff(xDrive, (long)e);
if (FS.Magic() == "XTAF")
{
PartitionInfo PI = new PartitionInfo();
PI.ClusterSize = FS.ClusterSize();
PI.DataOffset = FS.DataOffset();
PI.FATCopies = FS.FATCopies();
PI.FATOffset = FS.FATOffset;
PI.FATSize = FS.FATSize();
PI.ID = FS.PartitionID();
PI.Magic = FS.Magic();
PI.Name = e.ToString();
PI.Offset = (long)e;
PI.SectorsPerCluster = FS.SectorsPerCluster();
PI.EntrySize = FS.bit;
PI.Size = FS.PartitionSize();
Folder f = new Folder(xDrive, PI);
f.EData.StartingCluster = 0;
PIList.Add(f);
}
}
}
else if (PIList.Count == 0)
{
if (System.Windows.Forms.MessageBox.Show("No partitions were found. Would you like to use the Manual Partition tool to set the offset yourself?", "No Partitions Found", System.Windows.Forms.MessageBoxButtons.YesNo, System.Windows.Forms.MessageBoxIcon.Question) == System.Windows.Forms.DialogResult.Yes)
{
PartitionInfo PI = new PartitionInfo();
Manual_Partition mp = new Manual_Partition(ref PI);
if (mp.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
PI = mp.ReturnInfo;
FATStuff FS = new FATStuff(xDrive, PI.Offset);
if (FS.Magic() == "XTAF")
{
PI.ClusterSize = FS.ClusterSize();
PI.DataOffset = FS.DataOffset();
PI.FATCopies = FS.FATCopies();
PI.FATOffset = FS.FATOffset;
PI.FATSize = FS.FATSize();
PI.ID = FS.PartitionID();
PI.Magic = FS.Magic();
PI.Name = "Root";
PI.SectorsPerCluster = FS.SectorsPerCluster();
PI.EntrySize = FS.bit;
PI.Size = FS.PartitionSize();
Folder f = new Folder(xDrive, PI);
f.EData.StartingCluster = 0;
PIList.Add(f);
}
}
}
}
return PIList.ToArray();
}
