Пример #1
0
 private void ReadDirRecord(IsoRecord record)
 {
     byte len = ReadByte();
     // Some CDs can have incorrect value len = 48 ('0') in VolumeDescriptor.
     // But maybe we must use real "len" for other records.
     len = 34;
     ReadDirRecord(record, len);
 }
Пример #2
0
 private void ReadDirRecord(IsoRecord record, byte length)
 {
     record.ExtendedAttributeRecordLen = ReadByte();
     if (record.ExtendedAttributeRecordLen != 0)
         throw new InvalidDataException();
     record._location = ReadInt64();
     record.DataLength = ReadInt64();
     ReadRecordingDateTime(record._DateTime);
     record.Flags = ReadByte();
     record.FileUnitSize = ReadByte();
     record.InterleaveGapSize = ReadByte();
     record.VolSequenceNumber = ReadInt32();
     byte idLen = ReadByte();
     record.FileId = new byte[idLen];
     ReadBytes(record.FileId, idLen);
     int padSize = 1 - (idLen & 1);
     Skeep(1 - ((int)idLen & 1)); // it's bug in some cd's. Must be zeros
     int curPos = 33 + idLen + padSize;
     if (curPos > length)
         throw new InvalidDataException();
     int rem = length - curPos;
     record.SystemUse = new byte[rem];
     ReadBytes(record.SystemUse, rem);
 }
Пример #3
0
 private IsoReader()
 {
     _rootDirectory = new IsoRecord();
     _volumeDescriptor = new List<VolumeDescriptor>();
 }
Пример #4
0
 private void ReadDir(IsoRecord record, int level)
 {
     record.IsJoliet = IsJoliet;
     if (!record.IsDirectory)
         return;
     SeekToBlock(record.Location);
     long startPos = _currentPosition;
     bool firstItem = true;
     for (; ; )
     {
         long offset = _currentPosition - startPos;
         if (offset >= record.DataLength)
             break;
         byte len = ReadByte();
         if (len == 0)
             continue;
         IsoRecord subItem = new IsoRecord();
         subItem._Parent = record;
         ReadDirRecord(subItem, len);
         if (firstItem && level == 0)
             IsSusp = subItem.CheckSusp(SuspSkipSize);
         if (!subItem.IsSystemItem)
         {
             record.SubItems.Add(subItem);
         }
         firstItem = false;
     }
     for (int i = 0; i < record.SubItems.Count; i++)
         ReadDir(record.SubItems[i] as IsoRecord, level + 1);
 }