public ExtentKey(CatalogNodeId cnid, uint startBlock, bool resource_fork = false)
{
_keyLength = 10;
NodeId = cnid;
_startBlock = startBlock;
_forkType = (byte)(resource_fork ? 0xff : 0x00);
}
public override int ReadFrom(byte[] buffer, int offset)
{
_keyLength = EndianUtilities.ToUInt16BigEndian(buffer, offset + 0);
NodeId = new CatalogNodeId(EndianUtilities.ToUInt32BigEndian(buffer, offset + 2));
Name = HfsUtilities.ReadUniStr255(buffer, offset + 6);
return(_keyLength + 2);
}
public int ReadFrom(byte[] buffer, int offset)
{
RecordType = (CatalogRecordType)EndianUtilities.ToInt16BigEndian(buffer, offset + 0);
ParentId = EndianUtilities.ToUInt32BigEndian(buffer, offset + 4);
Name = HfsUtilities.ReadUniStr255(buffer, offset + 8);
return(0);
}
public File(Context context, CatalogNodeId nodeId, CommonCatalogFileInfo catalogInfo)
{
Context = context;
NodeId = nodeId;
_catalogInfo = catalogInfo;
//_hasCompressionAttribute =
// Context.Attributes.Find(new AttributeKey(NodeId, CompressionAttributeName)) != null;
_hasCompressionAttribute = false;
}
public virtual int ReadFrom(byte[] buffer, int offset)
{
RecordType = (CatalogRecordType)EndianUtilities.ToInt16BigEndian(buffer, offset + 0);
FileId = EndianUtilities.ToUInt32BigEndian(buffer, offset + 8);
CreateTime = HfsUtilities.ReadHfsDate(DateTimeKind.Utc, buffer, offset + 12);
ContentModifyTime = HfsUtilities.ReadHfsDate(DateTimeKind.Utc, buffer, offset + 16);
AttributeModifyTime = HfsUtilities.ReadHfsDate(DateTimeKind.Utc, buffer, offset + 20);
AccessTime = HfsUtilities.ReadHfsDate(DateTimeKind.Utc, buffer, offset + 24);
BackupTime = HfsUtilities.ReadHfsDate(DateTimeKind.Utc, buffer, offset + 28);
uint special;
FileSystemInfo = HfsUtilities.ReadBsdInfo(buffer, offset + 32, out special);
UnixSpecialField = special;
return(0);
}
public override int ReadFrom(byte[] buffer, int offset)
{
/*
* struct ExtKeyRec
* size: 8 bytes
* description:
*
* BP Size Type Identifier Description
* ----------------------------------------------------------------------
* 0 1 SInt8 xkrKeyLen key length (SignedByte)
* 1 1 SInt8 xkrFkType fork type (SignedByte)
* 2 4 SInt32 xkrFNum file number (LongInt)
* 6 2 SInt16 xkrFABN starting file allocation block (Integer)
*/
_keyLength = buffer[offset + 0];
_forkType = buffer[offset + 1];
NodeId = new CatalogNodeId(EndianUtilities.ToUInt32BigEndian(buffer, offset + 4));
_startBlock = EndianUtilities.ToUInt32BigEndian(buffer, offset + 6);
return(_keyLength + 2);
}
public CatalogKey(CatalogNodeId nodeId, string name)
{
NodeId = nodeId;
Name = name;
}
public FileBuffer(Context context, ForkData baseData, CatalogNodeId catalogNodeId)
{
_context = context;
_baseData = baseData;
_cnid = catalogNodeId;
}
public AttributeKey(CatalogNodeId nodeId, string name)
{
FileId = nodeId;
Name = name;
}
public Directory(Context context, CatalogNodeId nodeId, CommonCatalogFileInfo fileInfo)
: base(context, nodeId, fileInfo)
{
}
public Symlink(Context context, CatalogNodeId nodeId, CommonCatalogFileInfo catalogInfo)
: base(context, nodeId, catalogInfo)
{
}
public int ReadFrom(byte[] buffer, int offset)
{
/*
* struct MasterDirectoryBlock
* size: 162 bytes
* description:
*
* BP Size Type Identifier Description
* --------------------------------------------------------------------------
* 0 2 UInt16 drSigWord volume signature
* 2 4 UInt32 drCrDate date and time of volume creation
* 6 4 UInt32 drLsMod date and time of last modification
* 10 2 UInt16 drAtrb volume attributes
* 12 2 UInt16 drNmFls number of files in root directory
* 14 2 UInt16 drVBMSt first block of volume bitmap
* 16 2 UInt16 drAllocPtr start of next allocation search
* 18 2 UInt16 drNmAlBlks number of allocation blocks in volume
* 20 4 UInt32 drAlBlkSiz size (in bytes) of allocation blocks
* 24 4 UInt32 drClpSiz default clump size
* 28 2 UInt16 drAlBlSt first allocation block in volume
* 30 4 UInt32 drNxtCNID next unused catalog node ID
* 34 2 UInt16 drFreeBks number of unused allocation blocks
* 36 1 UInt8 drVNLength length of volume name
* 37 1*27 Char[28] drVN volume name
* 64 4 UInt32 drVolBkUp date and time of last backup
* 68 2 UInt16 drVSeqNum volume backup sequence number
* 70 4 UInt32 drWrCnt volume write count
* 74 4 UInt32 drXTClpSiz clump size for extents overflow file
* 78 4 UInt32 drCTClpSiz clump size for catalog file
* 82 2 UInt16 drNmRtDirs number of directories in root directory
* 84 4 UInt32 drFilCnt number of files in volume
* 88 4 UInt32 drDirCnt number of directories in volume
* 92 32 HFSVolumeFinderInfo drFndrInfo information used by the Finder
* 124 2 UInt16 drVCSize size (in blocks) of volume cache
* 126 2 UInt16 drVBMCSize size (in blocks) of volume bitmap cache
* 128 2 UInt16 drCtlCSize size (in blocks) of common volume cache
* 130 4 UInt32 drXTFlSize size of extents overflow file
* 134 12 ExtDataRec drXTExtRec extent record for extents overflow file
* 146 4 UInt32 drCTFlSize size of catalog file
* 150 12 ExtDataRec drCTExtRec extent record for catalog file
*/
Signature = EndianUtilities.ToUInt16BigEndian(buffer, offset + 0);
CreateDate = HfsUtilities.ReadHfsDate(DateTimeKind.Local, buffer, offset + 2);
ModifyDate = HfsUtilities.ReadHfsDate(DateTimeKind.Utc, buffer, offset + 6);
Attributes = (VolumeAttributes)EndianUtilities.ToUInt16BigEndian(buffer, offset + 10);
RootFileCount = EndianUtilities.ToUInt16BigEndian(buffer, offset + 12);
FirstBlock = EndianUtilities.ToUInt16BigEndian(buffer, offset + 14);
TotalBlocks = EndianUtilities.ToUInt16BigEndian(buffer, offset + 18);
BlockSize = EndianUtilities.ToUInt32BigEndian(buffer, offset + 20);
ResourceClumpSize = EndianUtilities.ToUInt32BigEndian(buffer, offset + 24);
DataClumpSize = EndianUtilities.ToUInt32BigEndian(buffer, offset + 24);
NextAllocation = EndianUtilities.ToUInt16BigEndian(buffer, offset + 28);
NextCatalogId = new CatalogNodeId(EndianUtilities.ToUInt32BigEndian(buffer, offset + 30));
FreeBlocks = EndianUtilities.ToUInt16BigEndian(buffer, offset + 34);
// VolumeName
VolumeName = EndianUtilities.BytesToString(buffer, offset + 37, buffer[36]);
BackupDate = HfsUtilities.ReadHfsDate(DateTimeKind.Local, buffer, offset + 64);
FileCount = EndianUtilities.ToUInt32BigEndian(buffer, offset + 84);
FolderCount = EndianUtilities.ToUInt32BigEndian(buffer, offset + 88);
WriteCount = EndianUtilities.ToUInt32BigEndian(buffer, offset + 70);
//EncodingsBitmap = EndianUtilities.ToUInt64BigEndian(buffer, offset + 72);
FinderInfo = new uint[8];
for (int i = 0; i < 8; ++i)
{
FinderInfo[i] = EndianUtilities.ToUInt32BigEndian(buffer, offset + 92 + i * 4);
}
ExtentsSize = EndianUtilities.ToUInt32BigEndian(buffer, offset + 130);
ExtentsOverflow = EndianUtilities.ToStruct <ExtentDataRecord>(buffer, offset + 134);
CatalogSize = EndianUtilities.ToUInt32BigEndian(buffer, offset + 146);
CatalogExtent = EndianUtilities.ToStruct <ExtentDataRecord>(buffer, offset + 150);
return(162);
}