/// <summary>
///
/// </summary>
/// <param name="volumeName"></param>
/// <param name="fileName"></param>
/// <returns></returns>
private static byte[] GetHeaderBytes(string volumeName, string fileName)
{
VolumeHeader volHeader = VolumeHeader.Get(volumeName);
ExtentDescriptor extent = null;
switch (fileName)
{
case "Catalog":
extent = volHeader.CatalogFile.Extents[0];
break;
case "Attributes":
extent = volHeader.AttributesFile.Extents[0];
break;
case "ExtentsOverflow":
extent = volHeader.ExtentsOverflowFile.Extents[0];
break;
}
// Read the smallest possible amount of bytes
byte[] firstSectorBytes = Helper.readDrive(volumeName, extent.StartBlock * volHeader.BlockSize, 0x200);
// Parse HeaderRecord to determine NodeSize
HeaderRecord headerRecord = HeaderRecord.Get(firstSectorBytes, 0x0E, volumeName, fileName);
// Read the full Header Node
return(Helper.readDrive(volumeName, extent.StartBlock * volHeader.BlockSize, headerRecord.NodeSize));
}
private Node(byte[] bytes, string volumeName, string fileName, uint nodeNumber)
{
VolumeName = volumeName;
FileName = fileName;
NodeNumber = nodeNumber;
NodeDescriptor = NodeDescriptor.Get(bytes, 0x00, volumeName, fileName);
List <Record> recordList = new List <Record>();
switch (NodeDescriptor.Kind)
{
case NodeDescriptor.NODE_KIND.kBTHeaderNode:
recordList.Add(HeaderRecord.Get(bytes, Helper.SwapEndianness(BitConverter.ToUInt16(bytes, bytes.Length - 0x02)), volumeName, fileName));
recordList.Add(UserDataRecord.Get(bytes, Helper.SwapEndianness(BitConverter.ToUInt16(bytes, bytes.Length - 0x04))));
//recordList.Add(Helper.GetSubArray(bytes, Helper.SwapEndianness(BitConverter.ToUInt16(bytes, bytes.Length - 0x06)), ));
break;
case NodeDescriptor.NODE_KIND.kBTIndexNode:
for (int i = 1; i <= NodeDescriptor.NumRecords; i++)
{
ushort recordOffset = Helper.SwapEndianness(BitConverter.ToUInt16(bytes, bytes.Length - (0x02 * i)));
recordList.Add(PointerRecord.Get(bytes, recordOffset, volumeName, fileName));
}
break;
case NodeDescriptor.NODE_KIND.kBTLeafNode:
for (int i = 1; i <= NodeDescriptor.NumRecords; i++)
{
ushort recordOffset = Helper.SwapEndianness(BitConverter.ToUInt16(bytes, bytes.Length - (0x02 * i)));
switch (fileName)
{
case "Catalog":
switch (DataRecord.GetRecordType(bytes, recordOffset))
{
case DataRecord.RECORD_TYPE.kHFSPlusFolderRecord:
recordList.Add(CatalogFolderRecord.Get(bytes, recordOffset, volumeName, fileName));
break;
case DataRecord.RECORD_TYPE.kHFSPlusFileRecord:
recordList.Add(CatalogFileRecord.Get(bytes, recordOffset, volumeName, fileName));
break;
case DataRecord.RECORD_TYPE.kHFSPlusFolderThreadRecord:
recordList.Add(CatalogThread.Get(bytes, recordOffset, volumeName, fileName));
break;
case DataRecord.RECORD_TYPE.kHFSPlusFileThreadRecord:
recordList.Add(CatalogThread.Get(bytes, recordOffset, volumeName, fileName));
break;
}
break;
case "ExtentsOverflow":
recordList.Add(ExtentsOverflowRecord.Get(bytes, recordOffset, volumeName, fileName));
break;
}
}
break;
case NodeDescriptor.NODE_KIND.kBTMapNode:
break;
}
Records = recordList.ToArray();
}