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 int CompareTo(object obj)
{
if (obj is GreenBookCdiDirectoryStructure)
{
GreenBookCdiDirectoryStructure o = (GreenBookCdiDirectoryStructure)obj;
return(this.DirectoryName.CompareTo(o.DirectoryName));
}
throw new ArgumentException("object is not an GreenBookCdiDirectoryStructure");
}
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;
}
}
}
