public static int ReadFrom(byte[] src, int offset, Encoding enc, out DirectoryRecord record)
{
int length = src[offset + 0];
record = new DirectoryRecord();
record.ExtendedAttributeRecordLength = src[offset + 1];
record.LocationOfExtent = IsoUtilities.ToUInt32FromBoth(src, offset + 2);
record.DataLength = IsoUtilities.ToUInt32FromBoth(src, offset + 10);
record.RecordingDateAndTime = IsoUtilities.ToUTCDateTimeFromDirectoryTime(src, offset + 18);
record.Flags = (FileFlags)src[offset + 25];
record.FileUnitSize = src[offset + 26];
record.InterleaveGapSize = src[offset + 27];
record.VolumeSequenceNumber = IsoUtilities.ToUInt16FromBoth(src, offset + 28);
byte lengthOfFileIdentifier = src[offset + 32];
record.FileIdentifier = IsoUtilities.ReadChars(src, offset + 33, lengthOfFileIdentifier, enc);
int padding = (lengthOfFileIdentifier & 1) == 0 ? 1 : 0;
int startSystemArea = lengthOfFileIdentifier + padding + 33;
int lenSystemArea = length - startSystemArea;
if (lenSystemArea > 0)
{
record.SystemUseData = new byte[lenSystemArea];
Array.Copy(src, offset + startSystemArea, record.SystemUseData, 0, lenSystemArea);
}
return(length);
}
private DateTime ReadTimestamp(Timestamps timestamp, byte[] data, bool longForm, ref int pos)
{
DateTime result = DateTime.MinValue;
if ((TimestampsPresent & timestamp) != 0)
{
if (longForm)
{
result = IsoUtilities.ToDateTimeFromVolumeDescriptorTime(data, pos);
pos += 17;
}
else
{
result = IsoUtilities.ToUTCDateTimeFromDirectoryTime(data, pos);
pos += 7;
}
}
return(result);
}