public virtual void LoadDirectories(FileStream isoStream)
{
// change name of top level folder
this.DirectoryRecordForRootDirectory.FileIdentifierString = String.Empty;
// get first path record
byte[] rootDirPathBytes = CdRom.GetSectorByLba(isoStream, this.VolumeBaseOffset, this.LocationOfOccurrenceOfTypeMPathTable, this.IsRawDump, this.LogicalBlockSize);
rootDirPathBytes = CdRom.GetDataChunkFromSector(rootDirPathBytes, this.IsRawDump);
// grab the directory record
uint rootDirectoryOffset = ByteConversion.GetUInt32BigEndian(ParseFile.ParseSimpleOffset(rootDirPathBytes, 2, 4));
byte[] rootDirDirectorySector = CdRom.GetSectorByLba(isoStream, this.VolumeBaseOffset, rootDirectoryOffset, this.IsRawDump, this.LogicalBlockSize);
rootDirDirectorySector = CdRom.GetDataChunkFromSector(rootDirDirectorySector, this.IsRawDump);
byte rootDirectoryRecordSize = rootDirDirectorySector[0];
byte[] rootDirectoryRecord = ParseFile.ParseSimpleOffset(rootDirDirectorySector, 0, rootDirectoryRecordSize);
this.DirectoryRecordForRootDirectory = new GreenBookCdiDirectoryRecord(rootDirectoryRecord);
// populate this volume's directory structure
GreenBookCdiDirectoryStructure rootDirectory =
new GreenBookCdiDirectoryStructure(isoStream, isoStream.Name,
this.VolumeBaseOffset, this.DirectoryRecordForRootDirectory,
this.LogicalBlockSize, this.IsRawDump, this.SectorSize, null);
this.DirectoryStructureArray.Add(rootDirectory);
}
public void Initialize(FileStream isoStream, long offset, bool isRawDump)
{
byte[] rootSector;
this.VolumeBaseOffset = offset;
this.FormatDescription = Panasonic3do.FORMAT_DESCRIPTION_STRING;
this.VolumeType = VolumeDataType.Data;
this.IsRawDump = isRawDump;
this.DirectoryStructureArray = new ArrayList();
rootSector = CdRom.GetSectorByLba(isoStream, this.VolumeBaseOffset, 0, this.IsRawDump, (int)Panasonic3do.SECTOR_SIZE);
rootSector = CdRom.GetDataChunkFromSector(rootSector, this.IsRawDump);
this.RootDirectoryCount = ByteConversion.GetUInt32BigEndian(ParseFile.ParseSimpleOffset(rootSector, 0x60, 4)) + 1;
this.RootDirectoryLbas = new uint[this.RootDirectoryCount];
for (uint i = 0; i < this.RootDirectoryCount; i++)
{
this.RootDirectoryLbas[i] =
ByteConversion.GetUInt32BigEndian(ParseFile.ParseSimpleOffset(rootSector, (int)(0x64 + (i * 4)), 4));
}
this.LoadDirectories(isoStream);
}
private void parseDirectoryRecord(InitializeStruct dirInitStruct)
{
byte recordSize;
int currentOffset;
uint bytesRead = 0;
uint currentLba = dirInitStruct.DirectoryRecord.LocationOfExtent;
byte[] directoryRecordBytes;
NullDcGdiDirectoryRecord tempDirectoryRecord;
NullDcGdiDirectoryStructure tempDirectory;
NullDcGdiDirectoryStructure.InitializeStruct newDirInitStruct;
NullDcGdiFileStructure tempFile;
NullDcGdiFileStructure.InitializeStruct fileInitStruct = new NullDcGdiFileStructure.InitializeStruct();
byte[] directorySector = dirInitStruct.Gdi.GetSectorByLba(currentLba);
directorySector = CdRom.GetDataChunkFromSector(directorySector, dirInitStruct.IsRaw);
currentOffset = 0;
while (bytesRead < dirInitStruct.DirectoryRecord.DataLength)
{
recordSize = ParseFile.ParseSimpleOffset(directorySector, currentOffset, 1)[0];
if (recordSize > 0)
{
try
{
directoryRecordBytes = ParseFile.ParseSimpleOffset(directorySector, currentOffset, recordSize);
tempDirectoryRecord = new NullDcGdiDirectoryRecord(directoryRecordBytes, dirInitStruct.VolumeContainsXaData);
if (!tempDirectoryRecord.FileIdentifierString.Equals(".") &&
!tempDirectoryRecord.FileIdentifierString.Equals("..")) // skip "this" directory
{
if (tempDirectoryRecord.FlagDirectory)
{
newDirInitStruct = dirInitStruct;
newDirInitStruct.DirectoryRecord = tempDirectoryRecord;
tempDirectory = new NullDcGdiDirectoryStructure(newDirInitStruct);
this.SubDirectoryArray.Add(tempDirectory);
}
else
{
fileInitStruct.Gdi = dirInitStruct.Gdi;
fileInitStruct.ParentDirectoryName = dirInitStruct.ParentDirectory;
fileInitStruct.SourceFilePath = dirInitStruct.Gdi.GetFilePathForLba(tempDirectoryRecord.LocationOfExtent);
fileInitStruct.FileName = tempDirectoryRecord.FileIdentifierString.Replace(";1", String.Empty);
fileInitStruct.VolumeBaseOffset = dirInitStruct.BaseOffset;
fileInitStruct.Lba = tempDirectoryRecord.LocationOfExtent;
fileInitStruct.Size = tempDirectoryRecord.DataLength;
fileInitStruct.IsRaw = dirInitStruct.IsRaw;
fileInitStruct.NonRawSectorSize = dirInitStruct.NonRawSectorSize;
fileInitStruct.FileMode = tempDirectoryRecord.ItemMode;
fileInitStruct.FileTime = tempDirectoryRecord.RecordingDateAndTime;
tempFile = new NullDcGdiFileStructure(fileInitStruct);
this.FileArray.Add(tempFile);
}
}
else if (tempDirectoryRecord.FileIdentifierString.Equals(".."))
{
this.ParentDirectoryRecord = tempDirectoryRecord;
}
bytesRead += recordSize;
currentOffset += recordSize;
}
catch (Exception ex)
{
throw new Exception(String.Format("Error parsing directory structure at offset: {0}, {1}", currentOffset, ex.Message));
}
}
else if ((dirInitStruct.DirectoryRecord.DataLength - bytesRead) > (directorySector.Length - currentOffset))
{
// move to start of next sector
directorySector = dirInitStruct.Gdi.GetSectorByLba(++currentLba);
directorySector = CdRom.GetDataChunkFromSector(directorySector, dirInitStruct.IsRaw);
bytesRead += (uint)(dirInitStruct.LogicalBlockSize - currentOffset);
currentOffset = 0;
}
else
{
break;
}
}
}
public NullDcGdi(string gdiPath)
{
CdAudio audioVolume;
NullDcGdiVolume gdiVolume;
long currentOffset;
long fileSize;
byte[] sectorBytes;
byte[] sectorDataBytes;
byte[] volumeIdBytes;
try
{
// parse GDI
this.ParseGdiFile(gdiPath);
// create volumes
this.VolumeList = new ArrayList();
if (this.TrackEntries != null)
{
for (int i = 0; i < this.TrackEntries.Length; i++)
{
if (this.TrackEntries[i].EntryType == TrackType.Audio)
{
audioVolume = new CdAudio();
audioVolume.Initialize(null, 0, true);
audioVolume.VolumeIdentifier = String.Format("Track {0}", this.TrackEntries[i].TrackNumber.ToString("D2"));
this.VolumeList.Add(audioVolume);
}
else
{
currentOffset = 0;
fileSize = this.TrackEntries[i].TrackStream.Length;
while (currentOffset < fileSize)
{
// get sector
sectorBytes = ParseFile.ParseSimpleOffset(this.TrackEntries[i].TrackStream, currentOffset, (int)this.TrackEntries[i].SectorSize);
// get data bytes from sector
sectorDataBytes = CdRom.GetDataChunkFromSector(sectorBytes, (this.TrackEntries[i].SectorSize == CdRom.RAW_SECTOR_SIZE));
// get header bytes
volumeIdBytes = ParseFile.ParseSimpleOffset(sectorDataBytes, 0, 0x100);
if (ParseFile.CompareSegmentUsingSourceOffset(volumeIdBytes, 0, Iso9660.VOLUME_DESCRIPTOR_IDENTIFIER.Length, Iso9660.VOLUME_DESCRIPTOR_IDENTIFIER))
{
gdiVolume = new NullDcGdiVolume(this);
gdiVolume.Initialize(this.TrackEntries[i].TrackStream, currentOffset, (this.TrackEntries[i].SectorSize == CdRom.RAW_SECTOR_SIZE));
this.VolumeList.Add((IVolume)gdiVolume);
}
currentOffset += this.TrackEntries[i].SectorSize;
}
}
}
}
}
catch (Exception ex)
{
throw new FileLoadException(String.Format("Error loading GDI: {0}.", ex.Message));
}
finally
{
// close all streams
if (this.TrackEntries != null)
{
for (int i = 0; i < this.TrackEntries.Length; i++)
{
if (this.TrackEntries[i].TrackStream.CanRead)
{
this.TrackEntries[i].TrackStream.Close();
this.TrackEntries[i].TrackStream.Dispose();
}
}
}
}
}
public virtual void Initialize(FileStream isoStream, long offset, bool isRawDump)
{
byte[] sectorBytes;
byte[] sectorDataBytes;
this.FormatDescription = NullDcGdi.FORMAT_DESCRIPTION_STRING;
this.VolumeType = VolumeDataType.Data;
this.IsRawDump = isRawDump;
this.DirectoryStructureArray = new ArrayList();
this.VolumeBaseOffset =
this.IsRawDump ? (offset - Iso9660.EMPTY_HEADER_SIZE_RAW) : (offset - Iso9660.EMPTY_HEADER_SIZE);
this.SectorSize =
this.IsRawDump ? (int)CdRom.RAW_SECTOR_SIZE : (int)CdRom.NON_RAW_SECTOR_SIZE;
// parse inital level sector
sectorBytes = ParseFile.ParseSimpleOffset(isoStream, offset, this.SectorSize);
sectorDataBytes = CdRom.GetDataChunkFromSector(sectorBytes, this.IsRawDump);
// check for CDXA marker
this.ContainsCdxaData = ParseFile.CompareSegmentUsingSourceOffset(sectorDataBytes, (int)Iso9660.CDXA_IDENTIFIER_OFFSET, Iso9660.CDXA_IDENTIFIER.Length, Iso9660.CDXA_IDENTIFIER);
this.VolumeDescriptorType = ParseFile.ParseSimpleOffset(sectorDataBytes, 0x00, 1)[0];
this.StandardIdentifier = ParseFile.ParseSimpleOffset(sectorDataBytes, 0x01, 5);
this.VolumeDescriptorVersion = ParseFile.ParseSimpleOffset(sectorDataBytes, 0x06, 1)[0];
this.UnusedField1 = ParseFile.ParseSimpleOffset(sectorDataBytes, 0x07, 1)[0];
this.SystemIdentifier = ByteConversion.GetAsciiText(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x08, 0x20)).Trim();
this.VolumeIdentifier = ByteConversion.GetAsciiText(FileUtil.ReplaceNullByteWithSpace(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x28, 0x20))).Trim();
this.UnusedField2 = ParseFile.ParseSimpleOffset(sectorDataBytes, 0x48, 0x08);
this.VolumeSpaceSize = BitConverter.ToUInt32(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x50, 0x04), 0);
this.UnusedField3 = ParseFile.ParseSimpleOffset(sectorDataBytes, 0x58, 0x20);
this.VolumeSetSize = BitConverter.ToUInt16(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x78, 0x02), 0);
this.VolumeSequenceNumber = BitConverter.ToUInt16(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x7C, 0x02), 0);
this.LogicalBlockSize = BitConverter.ToUInt16(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x80, 0x02), 0);
this.PathTableSize = BitConverter.ToUInt32(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x84, 0x04), 0);
this.LocationOfOccurrenceOfTypeLPathTable = BitConverter.ToUInt32(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x8C, 0x04), 0);
this.LocationOfOptionalOccurrenceOfTypeLPathTable = BitConverter.ToUInt32(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x90, 0x04), 0);
this.LocationOfOccurrenceOfTypeMPathTable = ByteConversion.GetUInt32BigEndian(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x94, 0x04));
this.LocationOfOptionalOccurrenceOfTypeMPathTable = ByteConversion.GetUInt32BigEndian(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x98, 0x04));
this.DirectoryRecordForRootDirectoryBytes = ParseFile.ParseSimpleOffset(sectorDataBytes, 0x9C, 0x22);
this.DirectoryRecordForRootDirectory = new NullDcGdiDirectoryRecord(this.DirectoryRecordForRootDirectoryBytes, this.ContainsCdxaData);
this.VolumeSetIdentifier = ByteConversion.GetAsciiText(ParseFile.ParseSimpleOffset(sectorDataBytes, 0xBE, 0x80)).Trim();
this.PublisherIdentifier = ByteConversion.GetAsciiText(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x13E, 0x80)).Trim();
this.DataPreparerIdentifier = ByteConversion.GetAsciiText(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x1BE, 0x80)).Trim();
this.ApplicationIdentifier = ByteConversion.GetAsciiText(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x23E, 0x80)).Trim();
this.CopyrightFileIdentifier = ByteConversion.GetAsciiText(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x2BE, 0x25)).Trim();
this.AbstractFileIdentifier = ByteConversion.GetAsciiText(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x2E3, 0x25)).Trim();
this.BibliographicFileIdentifier = ByteConversion.GetAsciiText(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x308, 0x25)).Trim();
this.VolumeCreationDateAndTime = Iso9660.GetIsoDateTime(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x32D, 0x11));
this.VolumeModificationDateAndTime = Iso9660.GetIsoDateTime(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x33E, 0x11));
this.VolumeExpirationDateAndTime = Iso9660.GetIsoDateTime(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x34F, 0x11));
this.VolumeEffectiveDateAndTime = Iso9660.GetIsoDateTime(ParseFile.ParseSimpleOffset(sectorDataBytes, 0x360, 0x11));
this.FileStructureVersion = ParseFile.ParseSimpleOffset(sectorDataBytes, 0x371, 1)[0];
this.Reserved1 = ParseFile.ParseSimpleOffset(sectorDataBytes, 0x372, 1)[0];
this.ApplicationUse = ParseFile.ParseSimpleOffset(sectorDataBytes, 0x373, 0x200);
this.Reserved2 = ParseFile.ParseSimpleOffset(sectorDataBytes, 0x573, 0x28D);
this.LoadDirectories(isoStream);
}
private void parseDirectoryRecord(
FileStream isoStream,
DateTime creationDateTime,
long baseOffset,
long directoryLba,
uint logicalBlockSize,
string parentDirectory,
bool isRaw,
int nonRawSectorSize)
{
uint recordSize;
byte[] directorySector;
byte[] directoryRecordBytes;
uint directoryRecordLength;
uint bytesRead;
uint currentOffset;
long currentLba = directoryLba;
Panasonic3doDirectoryRecord tempDirectoryRecord;
Panasonic3doDirectoryStructure tempDirectory;
Panasonic3doFileStructure tempFile;
// get the first sector
directorySector = CdRom.GetSectorByLba(isoStream, baseOffset, currentLba, isRaw, nonRawSectorSize);
directorySector = CdRom.GetDataChunkFromSector(directorySector, isRaw);
directoryRecordLength = ByteConversion.GetUInt32BigEndian(ParseFile.ParseSimpleOffset(directorySector, 0xC, 4));
bytesRead = 0x14;
currentOffset = 0x14;
while (bytesRead < directoryRecordLength)
{
recordSize = 0x48 + (4 * ByteConversion.GetUInt32BigEndian(ParseFile.ParseSimpleOffset(directorySector, (int)(currentOffset + 0x40), 4)));
directoryRecordBytes = ParseFile.ParseSimpleOffset(directorySector, (int)currentOffset, (int)recordSize);
tempDirectoryRecord = new Panasonic3doDirectoryRecord(directoryRecordBytes);
if (tempDirectoryRecord.DirectoryItemTypeBytes[3] == 0x07)
{
//for (uint i = 0; i < tempDirectoryRecord.SubDirectoryCount; i++)
//{
tempDirectory =
new Panasonic3doDirectoryStructure(isoStream, isoStream.Name,
creationDateTime, baseOffset, tempDirectoryRecord.SubDirectoryLbas[0],
logicalBlockSize, tempDirectoryRecord.DirectoryItemName,
parentDirectory, isRaw, nonRawSectorSize);
this.SubDirectoryArray.Add(tempDirectory);
//}
}
else
{
tempFile = new Panasonic3doFileStructure(parentDirectory,
this.SourceFilePath, tempDirectoryRecord.DirectoryItemName,
baseOffset, tempDirectoryRecord.SubDirectoryLbas[0],
tempDirectoryRecord.DirectoryItemSize, isRaw, nonRawSectorSize,
creationDateTime);
this.FileArray.Add(tempFile);
}
if (tempDirectoryRecord.DirectoryItemTypeBytes[0] == 0xC0)
{
break;
}
else if (tempDirectoryRecord.DirectoryItemTypeBytes[0] == 0x40)
{
directorySector = CdRom.GetSectorByLba(isoStream, baseOffset, ++currentLba, isRaw, nonRawSectorSize);
directorySector = CdRom.GetDataChunkFromSector(directorySector, isRaw);
directoryRecordLength = ByteConversion.GetUInt32BigEndian(ParseFile.ParseSimpleOffset(directorySector, 0xC, 4));
bytesRead = 0x14;
currentOffset = 0x14;
}
else
{
bytesRead += recordSize;
currentOffset += recordSize;
}
}
}
private void parseDirectoryRecord(FileStream isoStream, long baseOffset,
GreenBookCdiDirectoryRecord directoryRecord, uint logicalBlockSize,
bool isRaw, int nonRawSectorSize, string parentDirectory)
{
byte recordSize;
int currentOffset;
uint bytesRead = 0;
uint currentLba = directoryRecord.LocationOfExtent;
byte[] directoryRecordBytes;
GreenBookCdiDirectoryRecord tempDirectoryRecord;
GreenBookCdiDirectoryStructure tempDirectory;
GreenBookCdiFileStructure tempFile;
byte[] directorySector = CdRom.GetSectorByLba(isoStream, baseOffset, currentLba, isRaw, nonRawSectorSize);
directorySector = CdRom.GetDataChunkFromSector(directorySector, isRaw);
currentOffset = 0;
while (bytesRead < directoryRecord.DataLength)
{
recordSize = ParseFile.ParseSimpleOffset(directorySector, currentOffset, 1)[0];
if (recordSize > 0)
{
directoryRecordBytes = ParseFile.ParseSimpleOffset(directorySector, currentOffset, recordSize);
tempDirectoryRecord = new GreenBookCdiDirectoryRecord(directoryRecordBytes);
if (!tempDirectoryRecord.FileIdentifierString.Equals(".") &&
!tempDirectoryRecord.FileIdentifierString.Equals("..")) // skip "this" directory
{
//if (tempDirectoryRecord.FlagMultiExtent)
//{
// int x = 1;
//}
if (tempDirectoryRecord.FlagDirectory)
{
tempDirectory = new GreenBookCdiDirectoryStructure(isoStream, isoStream.Name, baseOffset, tempDirectoryRecord, logicalBlockSize, isRaw, nonRawSectorSize, parentDirectory);
this.SubDirectoryArray.Add(tempDirectory);
}
else
{
tempFile = new GreenBookCdiFileStructure(parentDirectory,
this.SourceFilePath,
tempDirectoryRecord.FileIdentifierString.Replace(";1", String.Empty),
baseOffset,
tempDirectoryRecord.LocationOfExtent,
tempDirectoryRecord.DataLength,
isRaw,
nonRawSectorSize,
tempDirectoryRecord.RecordingDateAndTime);
this.FileArray.Add(tempFile);
}
}
else if (tempDirectoryRecord.FileIdentifierString.Equals(".."))
{
this.ParentDirectoryRecord = tempDirectoryRecord;
}
bytesRead += recordSize;
currentOffset += recordSize;
}
else if ((directoryRecord.DataLength - bytesRead) > (directorySector.Length - currentOffset))
{
// move to start of next sector
directorySector = CdRom.GetSectorByLba(isoStream, baseOffset, ++currentLba, isRaw, nonRawSectorSize);
directorySector = CdRom.GetDataChunkFromSector(directorySector, isRaw);
bytesRead += (uint)(logicalBlockSize - currentOffset);
currentOffset = 0;
}
else
{
break;
}
}
}