#include <HFSVolumes.h>

Data Fields
UInt16	drSigWord

UInt32	drCrDate

UInt32	drLsMod

UInt16	drAtrb

UInt16	drNmFls

UInt16	drVBMSt

UInt16	drAllocPtr

UInt16	drNmAlBlks

UInt32	drAlBlkSiz

UInt32	drClpSiz

UInt16	drAlBlSt

UInt32	drNxtCNID

UInt16	drFreeBks

Str27	drVN

UInt32	drVolBkUp

UInt16	drVSeqNum

UInt32	drWrCnt

UInt32	drXTClpSiz

UInt32	drCTClpSiz

UInt16	drNmRtDirs

UInt32	drFilCnt

UInt32	drDirCnt

SInt32	drFndrInfo [8]

UInt16	drEmbedSigWord

HFSExtentDescriptor	drEmbedExtent

UInt32	drXTFlSize

HFSExtentRecord	drXTExtRec

UInt32	drCTFlSize

HFSExtentRecord	drCTExtRec

Detailed Description

Master Directory Block (HFS only) - 162 bytes Stored at sector #2 (3rd sector)

Field Documentation

◆ drAlBlkSiz

UInt32 HFSMasterDirectoryBlock::drAlBlkSiz

number of allocation blocks in volume

◆ drAlBlSt

UInt16 HFSMasterDirectoryBlock::drAlBlSt

default clump size

◆ drAllocPtr

UInt16 HFSMasterDirectoryBlock::drAllocPtr

first block of volume bitmap

◆ drAtrb

UInt16 HFSMasterDirectoryBlock::drAtrb

date and time of last modification

◆ drClpSiz

UInt32 HFSMasterDirectoryBlock::drClpSiz

size (in bytes) of allocation blocks

◆ drCrDate

UInt32 HFSMasterDirectoryBlock::drCrDate

volume signature

◆ drCTClpSiz

UInt32 HFSMasterDirectoryBlock::drCTClpSiz

clump size for extents overflow file

◆ drCTExtRec

HFSExtentRecord HFSMasterDirectoryBlock::drCTExtRec

size of catalog file

◆ drCTFlSize

UInt32 HFSMasterDirectoryBlock::drCTFlSize

extent record for extents overflow file

◆ drDirCnt

UInt32 HFSMasterDirectoryBlock::drDirCnt

number of files in volume

◆ drEmbedExtent

HFSExtentDescriptor HFSMasterDirectoryBlock::drEmbedExtent

embedded volume signature (formerly drVCSize)

◆ drEmbedSigWord

UInt16 HFSMasterDirectoryBlock::drEmbedSigWord

information used by the Finder

◆ drFilCnt

UInt32 HFSMasterDirectoryBlock::drFilCnt

number of directories in root folder

◆ drFndrInfo

SInt32 HFSMasterDirectoryBlock::drFndrInfo[8]

number of directories in volume

◆ drFreeBks

UInt16 HFSMasterDirectoryBlock::drFreeBks

next unused catalog node ID

◆ drLsMod

UInt32 HFSMasterDirectoryBlock::drLsMod

date and time of volume creation

◆ drNmAlBlks

UInt16 HFSMasterDirectoryBlock::drNmAlBlks

start of next allocation search

◆ drNmFls

UInt16 HFSMasterDirectoryBlock::drNmFls

volume attributes

◆ drNmRtDirs

UInt16 HFSMasterDirectoryBlock::drNmRtDirs

clump size for catalog file

◆ drNxtCNID

UInt32 HFSMasterDirectoryBlock::drNxtCNID

first allocation block in volume

◆ drSigWord

UInt16 HFSMasterDirectoryBlock::drSigWord

These first fields are also used by MFS

◆ drVBMSt

UInt16 HFSMasterDirectoryBlock::drVBMSt

number of files in root folder

◆ drVN

Str27 HFSMasterDirectoryBlock::drVN

number of unused allocation blocks

◆ drVolBkUp

UInt32 HFSMasterDirectoryBlock::drVolBkUp

volume name Master Directory Block extensions for HFS

◆ drVSeqNum

UInt16 HFSMasterDirectoryBlock::drVSeqNum

date and time of last backup

◆ drWrCnt

UInt32 HFSMasterDirectoryBlock::drWrCnt

volume backup sequence number

◆ drXTClpSiz

UInt32 HFSMasterDirectoryBlock::drXTClpSiz

volume write count

◆ drXTExtRec

HFSExtentRecord HFSMasterDirectoryBlock::drXTExtRec

size of extents overflow file

◆ drXTFlSize

UInt32 HFSMasterDirectoryBlock::drXTFlSize

embedded volume location and size (formerly drVBMCSize and drCtlCSize)

The documentation for this struct was generated from the following file:

HFSVolumes.h

Data Fields