public int ReadFrom(byte[] buffer, int offset)
{
Signature = EndianUtilities.ToUInt16BigEndian(buffer, offset + 0);
if (!IsValid)
{
return(Size);
}
Version = EndianUtilities.ToUInt16BigEndian(buffer, offset + 2);
Attributes = (VolumeAttributes)EndianUtilities.ToUInt32BigEndian(buffer, offset + 4);
LastMountedVersion = EndianUtilities.ToUInt32BigEndian(buffer, offset + 8);
JournalInfoBlock = EndianUtilities.ToUInt32BigEndian(buffer, offset + 12);
CreateDate = HfsPlusUtilities.ReadHFSPlusDate(DateTimeKind.Local, buffer, offset + 16);
ModifyDate = HfsPlusUtilities.ReadHFSPlusDate(DateTimeKind.Utc, buffer, offset + 20);
BackupDate = HfsPlusUtilities.ReadHFSPlusDate(DateTimeKind.Utc, buffer, offset + 24);
CheckedDate = HfsPlusUtilities.ReadHFSPlusDate(DateTimeKind.Utc, buffer, offset + 28);
FileCount = EndianUtilities.ToUInt32BigEndian(buffer, offset + 32);
FolderCount = EndianUtilities.ToUInt32BigEndian(buffer, offset + 36);
BlockSize = EndianUtilities.ToUInt32BigEndian(buffer, offset + 40);
TotalBlocks = EndianUtilities.ToUInt32BigEndian(buffer, offset + 44);
FreeBlocks = EndianUtilities.ToUInt32BigEndian(buffer, offset + 48);
NextAllocation = EndianUtilities.ToUInt32BigEndian(buffer, offset + 52);
ResourceClumpSize = EndianUtilities.ToUInt32BigEndian(buffer, offset + 56);
DataClumpSize = EndianUtilities.ToUInt32BigEndian(buffer, offset + 60);
NextCatalogId = new CatalogNodeId(EndianUtilities.ToUInt32BigEndian(buffer, offset + 64));
WriteCount = EndianUtilities.ToUInt32BigEndian(buffer, offset + 68);
EncodingsBitmap = EndianUtilities.ToUInt64BigEndian(buffer, offset + 72);
FinderInfo = new uint[8];
for (int i = 0; i < 8; ++i)
{
FinderInfo[i] = EndianUtilities.ToUInt32BigEndian(buffer, offset + 80 + i * 4);
}
AllocationFile = EndianUtilities.ToStruct <ForkData>(buffer, offset + 112);
ExtentsFile = EndianUtilities.ToStruct <ForkData>(buffer, offset + 192);
CatalogFile = EndianUtilities.ToStruct <ForkData>(buffer, offset + 272);
AttributesFile = EndianUtilities.ToStruct <ForkData>(buffer, offset + 352);
StartupFile = EndianUtilities.ToStruct <ForkData>(buffer, offset + 432);
return(512);
}
public int ReadFrom(byte[] buffer, int offset)
{
Signature = Utilities.ToUInt16BigEndian(buffer, offset + 0);
Version = Utilities.ToUInt16BigEndian(buffer, offset + 2);
Attributes = (VolumeAttributes)Utilities.ToUInt32BigEndian(buffer, offset + 4);
LastMountedVersion = Utilities.ToUInt32BigEndian(buffer, offset + 8);
JournalInfoBlock = Utilities.ToUInt32BigEndian(buffer, offset + 12);
CreateDate = HfsPlusUtilities.ReadHFSPlusDate(DateTimeKind.Local, buffer, offset + 16);
ModifyDate = HfsPlusUtilities.ReadHFSPlusDate(DateTimeKind.Utc, buffer, offset + 20);
BackupDate = HfsPlusUtilities.ReadHFSPlusDate(DateTimeKind.Utc, buffer, offset + 24);
CheckedDate = HfsPlusUtilities.ReadHFSPlusDate(DateTimeKind.Utc, buffer, offset + 28);
FileCount = Utilities.ToUInt32BigEndian(buffer, offset + 32);
FolderCount = Utilities.ToUInt32BigEndian(buffer, offset + 36);
BlockSize = Utilities.ToUInt32BigEndian(buffer, offset + 40);
TotalBlocks = Utilities.ToUInt32BigEndian(buffer, offset + 44);
FreeBlocks = Utilities.ToUInt32BigEndian(buffer, offset + 48);
NextAllocation = Utilities.ToUInt32BigEndian(buffer, offset + 52);
ResourceClumpSize = Utilities.ToUInt32BigEndian(buffer, offset + 56);
DataClumpSize = Utilities.ToUInt32BigEndian(buffer, offset + 60);
NextCatalogId = new CatalogNodeId(Utilities.ToUInt32BigEndian(buffer, offset + 64));
WriteCount = Utilities.ToUInt32BigEndian(buffer, offset + 68);
EncodingsBitmap = Utilities.ToUInt64BigEndian(buffer, offset + 72);
FinderInfo = new uint[8];
for (int i = 0; i < 8; ++i)
{
FinderInfo[i] = Utilities.ToUInt32BigEndian(buffer, offset + 80 + (i * 4));
}
AllocationFile = (ForkData)Utilities.ToStruct<ForkData>(buffer, offset + 112);
ExtentsFile = (ForkData)Utilities.ToStruct<ForkData>(buffer, offset + 192);
CatalogFile = (ForkData)Utilities.ToStruct<ForkData>(buffer, offset + 272);
AttributesFile = (ForkData)Utilities.ToStruct<ForkData>(buffer, offset + 272);
StartupFile = (ForkData)Utilities.ToStruct<ForkData>(buffer, offset + 272);
return 512;
}
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);
}
