private ushort?GetFileRecordSegmentSequenceNumber(long segmentNumber)
{
byte[] segmentBytes = GetFileRecordSegmentBytes(segmentNumber);
if (FileRecordSegment.ContainsFileRecordSegment(segmentBytes))
{
return(FileRecordSegment.GetSequenceNumber(segmentBytes));
}
return(null);
}
private FileRecordSegment GetFileRecordSegment(long segmentNumber)
{
NTFSBootRecord bootRecord = m_volume.BootRecord;
// Note: File record always start at the beginning of a sector
// Note: Record can span multiple clusters, or alternatively, several records can be stored in the same cluster
long firstSectorIndex = segmentNumber * m_volume.SectorsPerFileRecordSegment;
byte[] segmentBytes = m_mftFile.Data.ReadSectors(firstSectorIndex, m_volume.SectorsPerFileRecordSegment);
if (FileRecordSegment.ContainsFileRecordSegment(segmentBytes))
{
FileRecordSegment recordSegment = new FileRecordSegment(segmentBytes, 0, segmentNumber);
return(recordSegment);
}
else
{
return(null);
}
}
