private void ReadEntry(UInt32 currentBlock, UInt32 offset, String currentPath)
{
m_br.BaseStream.Seek((currentBlock * m_rootHeader.blockSize) + offset, SeekOrigin.Begin);
// Check creation of directory.
if (Directory.Exists(currentPath) == false)
{
Directory.CreateDirectory(currentPath);
}
int entrycount = 0;
bool lastEntry = false;
while (lastEntry == false)
{
// Entry.
//Console.Write(Environment.NewLine);
//Console.WriteLine("Entry: ");
EntryHeader eh = new EntryHeader();
// Flags.
eh.flags = Util.ArrayToUint32(m_br.ReadBytes(sizeof(UInt32)));
// Convert flags.
EntryFlags entryFlags = EntryFlags.None;
if ((eh.flags & 0x80000000) == 0x80000000)
{
entryFlags |= EntryFlags.LastEntryInDir;
}
if ((eh.flags & 0x40000000) == 0x40000000)
{
entryFlags |= EntryFlags.LastEntryInBlock;
}
if ((eh.flags & 0x07) == 0x07)
{
entryFlags |= EntryFlags.Directory;
}
else if ((eh.flags & 0x06) == 0x06)
{
entryFlags |= EntryFlags.SpecialFile;
}
else if ((eh.flags & 0x02) == 0x02)
{
entryFlags |= EntryFlags.File;
}
if (entryFlags.HasFlag(EntryFlags.LastEntryInDir) == true)
{
lastEntry = true;
}
// Identifier.
eh.id = Util.ArrayToUint32(m_br.ReadBytes(sizeof(UInt32)));
// Type.
eh.type = m_br.ReadBytes(m_entryTypeSize);
//Console.Write("Type: ");
//for (int i = 0; i < m_entryTypeSize; i++)
// Console.Write((Char)eh.type[i]);
//Console.Write(Environment.NewLine);
// Block size.
eh.blockSize = Util.ArrayToUint32(m_br.ReadBytes(sizeof(UInt32)));
// failsafe: Read error, return immediately.
if (eh.blockSize != m_rootHeader.blockSize)
{
break;
}
entrycount++;
// Length of the entry in bytes.
eh.byteCount = Util.ArrayToUint32(m_br.ReadBytes(sizeof(UInt32)));
// Length of the entry in blocks.
eh.blockCount = Util.ArrayToUint32(m_br.ReadBytes(sizeof(UInt32)));
//Console.WriteLine("BlockCount: " + eh.blockCount);
// Burst.
eh.burst = Util.ArrayToUint32(m_br.ReadBytes(sizeof(UInt32)));
// Gap.
eh.gap = Util.ArrayToUint32(m_br.ReadBytes(sizeof(UInt32)));
// Filename.
eh.filename = m_br.ReadBytes(m_filenameSize);
//Console.Write("Filename: ");
//for (int i = 0; i < m_filenameSize; i++)
// Console.Write((Char)eh.filename[i]);
//Console.Write(Environment.NewLine);
// Number of avatars.
eh.avatarsCount = Util.ArrayToUint32(m_br.ReadBytes(sizeof(UInt32)));
// Offset to the avatars, from the beginning of the disk, in blocks.
eh.avatars = new UInt32[eh.avatarsCount + 1];
//Console.Write("Locations of the avatars: ");
for (int i = 0; i < eh.avatarsCount + 1; i++)
{
eh.avatars[i] = Util.ArrayToUint32(m_br.ReadBytes(sizeof(UInt32)));
//Console.Write(eh.avatars[i] + " ");
}
//Console.Write(Environment.NewLine);
// Add entry header to the list.
m_entryHeaderList.Add(eh);
//--
if (m_blocks.ContainsKey(currentBlock) == false)
{
m_blocks[currentBlock] = new BlockInfo();
}
BlockInfo block = m_blocks[currentBlock];
if (block.entryHeaders == null)
{
block.entryHeaders = new List <EntryHeader>();
}
block.entryHeaders.Add(eh);
m_blocks[currentBlock] = block;
//--
//if (entryFlags.HasFlag(EntryFlags.SpecialFile) == true)
//{
// Console.Write("Special File: ");
// for (int i = 0; i < m_filenameSize; i++)
// Console.Write((Char)eh.filename[i]);
// Console.Write(Environment.NewLine);
//}
// Create directory.
if (entryFlags.HasFlag(EntryFlags.Directory) == true)
{
// Store the current position.
long currentPosition = m_br.BaseStream.Position;
// For the filename we need to convert from Byte ASCII to Unicode string and trim the padding ('\0').
Byte[] bytes = Encoding.Convert(Encoding.ASCII, Encoding.Unicode, eh.filename);
String unicode = Encoding.Unicode.GetString(bytes).Trim('\0');
String dirPath = currentPath + m_separator + unicode;
ReadDirectory(eh.avatars[0], 0, dirPath);
// Return to previous position.
m_br.BaseStream.Seek(currentPosition, SeekOrigin.Begin);
}
else // Write file.
{
// [CRIS] special case: Disc label is the header of the FileSystem referenced as a file. Do not create this file.
if (Encoding.ASCII.GetString(eh.filename).Contains("Disc label") == false &&
Encoding.ASCII.GetString(eh.type).Equals("*lbl") == false)
{
// Store the current position.
long currentPosition = m_br.BaseStream.Position;
// For the filename we need to convert from Byte ASCII to Unicode string and trim the padding ('\0').
Byte[] bytes = Encoding.Convert(Encoding.ASCII, Encoding.Unicode, eh.filename);
String unicode = Encoding.Unicode.GetString(bytes).Trim('\0');
String filePath = currentPath + m_separator + unicode;
//Console.WriteLine("Writing '" + unicode + "'...");
ReadFile(eh.avatars[0], filePath, eh.byteCount);
// Return to previous position.
m_br.BaseStream.Seek(currentPosition, SeekOrigin.Begin);
}
}
}
}
// -first free byte
// -root header
// -write to file
// -profit
private void SaveBlocks(String filename)
{
try
{
FileStream fs = new FileStream(filename, FileMode.Create);
m_bw = new BinaryWriter(fs);
//-----------------------------
// The first block is special.
m_volumeHeader.recordType = 1;
m_volumeHeader.syncBytes = new Byte[] { 0x5A, 0x5A, 0x5A, 0x5A, 0x5A };
m_volumeHeader.structureVersion = 1;
m_volumeHeader.flags = 0;
m_volumeHeader.comment = new Byte[m_volumeCommentSize];
m_volumeHeader.label = new Byte[m_volumeLabelSize];
m_volumeHeader.label[0] = (Byte)'C';
m_volumeHeader.label[1] = (Byte)'D';
m_volumeHeader.label[2] = (Byte)'-';
m_volumeHeader.label[3] = (Byte)'R';
m_volumeHeader.label[4] = (Byte)'O';
m_volumeHeader.label[5] = (Byte)'M';
m_volumeHeader.identifier = 1366613; // TODO?
m_volumeHeader.blockSize = m_blockSize;
m_volumeHeader.blockCount = 1 + (UInt32)m_headerBlocks.Keys.Last() + (UInt32)m_dataBlocks.Keys.Last();
m_rootHeader.id = 666; // TODO?
m_rootHeader.blockCount = 1; // TODO!!!
m_rootHeader.blockSize = m_blockSize;
m_rootHeader.avatarsCount = 7; // TODO?
m_rootHeader.avatars = new UInt32[] { 1, 1, 1, 1, 1, 1, 1, 1 }; // TODO?
// Volume header.
m_bw.Write(m_volumeHeader.recordType);
m_bw.Write(m_volumeHeader.syncBytes);
m_bw.Write(m_volumeHeader.structureVersion);
m_bw.Write(m_volumeHeader.flags);
m_bw.Write(m_volumeHeader.comment);
m_bw.Write(m_volumeHeader.label);
m_bw.Write(Util.UInt32ToArray(m_volumeHeader.identifier));
m_bw.Write(Util.UInt32ToArray(m_volumeHeader.blockSize));
m_bw.Write(Util.UInt32ToArray(m_volumeHeader.blockCount));
// Root header.
m_bw.Write(Util.UInt32ToArray(m_rootHeader.id));
m_bw.Write(Util.UInt32ToArray(m_rootHeader.blockCount));
m_bw.Write(Util.UInt32ToArray(m_rootHeader.blockSize));
m_bw.Write(Util.UInt32ToArray(m_rootHeader.avatarsCount));
for (int i = 0; i < m_rootHeader.avatarsCount + 1; i++)
{
m_bw.Write(Util.UInt32ToArray(m_rootHeader.avatars[i]));
}
// Null ended.
m_bw.Write(0);
// Duck this block.
WriteDuck();
//Console.WriteLine("Blocks: " + m_volumeHeader.blockCount);
//Console.WriteLine("Block " + 0 + ": Volume and Root Header");
//-----------------------------
// Write standard blocks.
foreach (KeyValuePair <uint, BlockInfo> headerBlock in m_headerBlocks)
{
BlockInfo block = headerBlock.Value;
// Directory header.
m_bw.Write(Util.UInt32ToArray(block.directoryHeader.nextBlock));
m_bw.Write(Util.UInt32ToArray(block.directoryHeader.prevBlock));
m_bw.Write(Util.UInt32ToArray(block.directoryHeader.flags));
m_bw.Write(Util.UInt32ToArray(block.directoryHeader.firstFreeByte));
m_bw.Write(Util.UInt32ToArray(block.directoryHeader.firstEntryOffset));
// Entry headers.
for (int j = 0; j < block.entryHeaders.Count; j++)
{
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].flags));
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].id));
m_bw.Write(block.entryHeaders[j].type);
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].blockSize));
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].byteCount));
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].blockCount));
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].burst));
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].gap));
for (int k = 0; k < block.entryHeaders[j].filename.Length; k++)
{
m_bw.Write(block.entryHeaders[j].filename[k]);
}
//for (int k = 0; k < block.entryHeaders[j].filename.Length; k++)
// Console.Write((char)block.entryHeaders[j].filename[k]);
//Console.WriteLine("");
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].avatarsCount));
for (int k = 0; k < block.entryHeaders[j].avatars.Length; k++)
{
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].avatars[k]));
}
}
// Duck this block.
WriteDuck();
}
foreach (KeyValuePair <uint, BlockInfo> dataBlock in m_dataBlocks)
{
BlockInfo block = dataBlock.Value;
// Write file data.
m_bw.Write(block.data);
// Duck final block.
WriteDuck();
}
//----------
m_bw.Close();
fs.Close();
}
catch (Exception ex)
{
Console.Error.WriteLine(ex);
}
}
private void ConvertFilesToBlocks(String path)
{
m_currentFSIndex = 413666134; // Starting index.
UInt32 currentHBlock = 1; // Header block.
UInt32 currentDBlock = 0; // Data block.
bool isFirstBlock = true;
//-------------------------------------------------
// Special file: Disc label.
CreateNewHeaderBlock(currentHBlock, 0xffffffff, 0xffffffff);
EntryHeader ehLabel = new EntryHeader();
ehLabel.flags = 0x06; // Special file.
ehLabel.id = GetNewFSIndex();
ehLabel.type = GetEntryTypeAsArray("*lbl");
ehLabel.blockSize = m_blockSize;
ehLabel.byteCount = m_discLabelByteCount;
ehLabel.blockCount = 1;
ehLabel.burst = 1;
ehLabel.gap = 0;
ehLabel.filename = GetFilenameAsArray("Disc label");
ehLabel.avatarsCount = 0;
ehLabel.avatars = new UInt32[] { 0 };
// Add to current block.
AddEntryToHeaderBlock(ehLabel, currentHBlock);
//-------------------------------------------------
// Headers.
int dirCountTotal = 0;
int fileCountTotal = 0;
UInt32 avatarPosition = 2;
Queue <String> queue = new Queue <String>();
queue.Enqueue(path);
while (queue.Count > 0)
{
path = queue.Dequeue();
try
{
int totalEntriesCount = Directory.GetDirectories(path).Length + Directory.GetFiles(path).Length;
UInt32 blockOffset = 0;
int indexEntry = 1;
int totalIndexEntry = 1;
// Create new header block (only after block, because of Disc label).
if (isFirstBlock == false)
{
currentHBlock++;
CreateNewHeaderBlock(currentHBlock, 0xffffffff, 0xffffffff);
}
else
{
isFirstBlock = false;
}
UInt32 blockCountAvatarOffset = (UInt32)((totalEntriesCount + m_maxEntryHeadersPerBlock - 1) / m_maxEntryHeadersPerBlock);
String lastIndexDir = String.Empty;
// Directories.
foreach (String subDir in Directory.GetDirectories(path))
{
queue.Enqueue(subDir);
//Console.WriteLine(subDir);
dirCountTotal++;
int currentEntriesCount = Directory.GetDirectories(subDir).Length + Directory.GetFiles(subDir).Length;
// Create entry.
EntryHeader eh = new EntryHeader();
eh.flags = 0x07;
eh.id = GetNewFSIndex();
eh.type = GetEntryTypeAsArray("*dir");
eh.blockSize = m_blockSize;
eh.blockCount = (UInt32)((currentEntriesCount + m_maxEntryHeadersPerBlock - 1) / m_maxEntryHeadersPerBlock);
eh.byteCount = (UInt32)(eh.blockCount * m_blockSize);
eh.burst = 1;
eh.gap = 0;
eh.filename = GetFilenameAsArray(Path.GetFileName(subDir));
eh.avatarsCount = 0; // Remember: must add actual avatar array later.
//eh.avatars = // Remember: must add actual avatar array later.
eh.avatars = new UInt32[1];
//----------------------------
// Calculate avatar position.
eh.avatars[0] = avatarPosition;
avatarPosition += eh.blockCount;
if (eh.blockCount * m_maxEntryHeadersPerBlock == currentEntriesCount)
{
avatarPosition++;
}
//----------------------------
// Check if this is the last dir entry of the dir.
if (totalIndexEntry == totalEntriesCount)
{
eh.flags |= 0x80000000;
eh.flags |= 0x40000000;
//avatarPosition += eh.blockCount;
}
// Check if this is the last dir entry in the block.
else if (indexEntry + 1 == m_maxEntryHeadersPerBlock)
{
eh.flags |= 0x40000000;
}
if (indexEntry == m_maxEntryHeadersPerBlock)
{
indexEntry = 1;
blockOffset++;
// Set the info about the new block in the older one.
BlockInfo oldBlock = m_headerBlocks[currentHBlock];
oldBlock.directoryHeader.nextBlock = blockOffset;
m_headerBlocks[currentHBlock] = oldBlock;
// Create a new block and add it.
currentHBlock++;
CreateNewHeaderBlock(currentHBlock, 0xffffffff, blockOffset - 1);
}
// Add to current block.
AddEntryToHeaderBlock(eh, currentHBlock);
totalIndexEntry++;
indexEntry++;
}
// Files.
foreach (String file in Directory.GetFiles(path))
{
fileCountTotal++;
//Console.WriteLine(file);
// Create data block.
BlockInfo dataBlock = new BlockInfo();
dataBlock.data = File.ReadAllBytes(file);
m_dataBlocks[currentDBlock] = dataBlock;
currentDBlock += (UInt32)(dataBlock.data.Length / m_blockSize) + 1;
// Create entry.
EntryHeader eh = new EntryHeader();
eh.flags = 0x02;
eh.id = GetNewFSIndex();
eh.type = GetEntryTypeAsArray(Path.GetExtension(file));
eh.blockSize = m_blockSize;
eh.byteCount = (UInt32)dataBlock.data.Length;
eh.blockCount = (UInt32)((dataBlock.data.Length + m_blockSize - 1) / m_blockSize);
eh.burst = 1;
eh.gap = 0;
eh.filename = GetFilenameAsArray(Path.GetFileName(file));
eh.avatarsCount = 0; // Remember: must add actual avatar array later.
//eh.avatars = // Remember: must add actual avatar array later.
// TODO...
// Check if this is the last dir entry of the dir.
if (totalIndexEntry == totalEntriesCount)
{
eh.flags |= 0x80000000;
eh.flags |= 0x40000000;
}
// Check if this is the last dir entry in the block.
else if (indexEntry + 1 == m_maxEntryHeadersPerBlock)
{
eh.flags |= 0x40000000;
}
if (indexEntry == m_maxEntryHeadersPerBlock)
{
indexEntry = 1;
blockOffset++;
//avatarPosition++;
// Set the info about the new block in the older one.
BlockInfo oldBlock = m_headerBlocks[currentHBlock];
oldBlock.directoryHeader.nextBlock = blockOffset;
m_headerBlocks[currentHBlock] = oldBlock;
// Create a new block and add it.
currentHBlock++;
CreateNewHeaderBlock(currentHBlock, 0xffffffff, blockOffset - 1);
}
// Add to current block.
AddEntryToHeaderBlock(eh, currentHBlock);
totalIndexEntry++;
indexEntry++;
}
}
catch (Exception ex)
{
Console.Error.WriteLine(ex);
}
}
Console.WriteLine("dirCountTotal: " + dirCountTotal);
Console.WriteLine("fileCountTotal: " + fileCountTotal);
}
public void CompileFSFromMemory(String filename)
{
try
{
FileStream fs = new FileStream(filename, FileMode.Create);
m_bw = new BinaryWriter(fs);
//-----------------------------
// The first block is special.
// Volume header.
m_bw.Write(m_volumeHeader.recordType);
m_bw.Write(m_volumeHeader.syncBytes);
m_bw.Write(m_volumeHeader.structureVersion);
m_bw.Write(m_volumeHeader.flags);
m_bw.Write(m_volumeHeader.comment);
m_bw.Write(m_volumeHeader.label);
m_bw.Write(Util.UInt32ToArray(m_volumeHeader.identifier));
m_bw.Write(Util.UInt32ToArray(m_volumeHeader.blockSize));
m_bw.Write(Util.UInt32ToArray(m_volumeHeader.blockCount));
// Root header.
m_bw.Write(Util.UInt32ToArray(m_rootHeader.id));
m_bw.Write(Util.UInt32ToArray(m_rootHeader.blockCount));
m_bw.Write(Util.UInt32ToArray(m_rootHeader.blockSize));
m_bw.Write(Util.UInt32ToArray(m_rootHeader.avatarsCount));
for (int i = 0; i < m_rootHeader.avatarsCount + 1; i++)
{
m_bw.Write(Util.UInt32ToArray(m_rootHeader.avatars[i]));
}
// Null ended.
m_bw.Write(0);
// Duck this block.
WriteDuck();
//-----------------------------
// Write standard blocks.
for (UInt32 i = 1; i < m_volumeHeader.blockCount;)
{
if (m_blocks.ContainsKey(i) == true)
{
BlockInfo block = m_blocks[i];
if (block.type == BlockType.Data)
{
//Console.WriteLine("Block " + i + ": Data");
// Write file data.
m_bw.Write(block.data);
// Duck final block.
WriteDuck();
UInt32 blockCount = (UInt32)((block.data.Length + m_volumeHeader.blockSize - 1) / m_volumeHeader.blockSize);
i += blockCount;
//Console.WriteLine("size: " + blockCount);
}
else if (block.type == BlockType.Header)
{
//Console.WriteLine("Block " + i + ": Header");
// Directory header.
m_bw.Write(Util.UInt32ToArray(block.directoryHeader.nextBlock));
m_bw.Write(Util.UInt32ToArray(block.directoryHeader.prevBlock));
m_bw.Write(Util.UInt32ToArray(block.directoryHeader.flags));
m_bw.Write(Util.UInt32ToArray(block.directoryHeader.firstFreeByte));
m_bw.Write(Util.UInt32ToArray(block.directoryHeader.firstEntryOffset));
// Entry headers.
for (int j = 0; j < block.entryHeaders.Count; j++)
{
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].flags));
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].id));
for (int k = 0; k < block.entryHeaders[j].type.Length; k++)
{
m_bw.Write(block.entryHeaders[j].type[k]);
}
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].blockSize));
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].byteCount));
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].blockCount));
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].burst));
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].gap));
for (int k = 0; k < block.entryHeaders[j].filename.Length; k++)
{
m_bw.Write(block.entryHeaders[j].filename[k]);
}
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].avatarsCount));
for (int k = 0; k < block.entryHeaders[j].avatars.Length; k++)
{
m_bw.Write(Util.UInt32ToArray(block.entryHeaders[j].avatars[k]));
}
}
// Duck this block.
WriteDuck();
i++;
}
else
{
// FAIL block?
Console.WriteLine("Block " + i + ": FAIL");
WriteDuck();
i++;
}
}
else
{
// Empty block.
Console.WriteLine("Block " + i + ": Empty");
WriteDuck();
i++;
}
}
//----------
m_bw.Close();
fs.Close();
}
catch (Exception ex)
{
Console.Error.WriteLine(ex);
}
}
