public int CompareTo(object obj)
{
if (obj is NullDcGdiDirectoryStructure)
{
NullDcGdiDirectoryStructure o = (NullDcGdiDirectoryStructure)obj;
return(this.DirectoryName.CompareTo(o.DirectoryName));
}
throw new ArgumentException("object is not an NullDcGdiDirectoryStructure");
}
public virtual void LoadDirectories(FileStream isoStream)
{
NullDcGdiDirectoryStructure.InitializeStruct dirInitStruct = new NullDcGdiDirectoryStructure.InitializeStruct();
// change name of top level folder
this.DirectoryRecordForRootDirectory.FileIdentifierString = String.Empty;
// populate this volume's directory structure
dirInitStruct.Gdi = this.ParentGdi;
dirInitStruct.SourceFilePath = isoStream.Name;
dirInitStruct.BaseOffset = this.VolumeBaseOffset;
dirInitStruct.DirectoryRecord = this.DirectoryRecordForRootDirectory;
dirInitStruct.LogicalBlockSize = this.LogicalBlockSize;
dirInitStruct.IsRaw = this.IsRawDump;
dirInitStruct.NonRawSectorSize = this.SectorSize;
dirInitStruct.VolumeContainsXaData = this.ContainsCdxaData;
dirInitStruct.ParentDirectory = null;
NullDcGdiDirectoryStructure rootDirectory = new NullDcGdiDirectoryStructure(dirInitStruct);
this.DirectoryStructureArray.Add(rootDirectory);
}
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;
}
}
}
