public SOA(NetBinaryReader nbr)
{
PrimaryNS = nbr.ReadLblOrPntString();
AdminMB = nbr.ReadLblOrPntString();
SerialNbr = nbr.ReadUInt32();
RefreshInterval = nbr.ReadUInt32();
RetryInterval = nbr.ReadUInt32();
ExpirationLimit = nbr.ReadUInt32();
MaxTTL = nbr.ReadUInt32();
}
public TcpHeader(byte[] byIpData, int start)
{
NetBinaryReader nbr = new NetBinaryReader(byIpData, start);
SourcePort = nbr.ReadUInt16();
DestinationPort = nbr.ReadUInt16();
SequenceNumber = nbr.ReadUInt32();
AcknowledgmentNumber = nbr.ReadUInt32();
DataOffset = nbr.ReadNible();
nbr.SkipPadBits();
nbr.ReadCustomAmount(2);
URG = nbr.ReadBit();
ACK = nbr.ReadBit();
PSH = nbr.ReadBit();
RST = nbr.ReadBit();
SYN = nbr.ReadBit();
FIN = nbr.ReadBit();
Window = nbr.ReadUInt16();
Checksum = nbr.ReadUInt16();
UrgentPointer = nbr.ReadUInt16();
//TODO: test
byte option;
long optionsStart = nbr.BaseStream.Position;
Options = new byte[0][];
while ((option = nbr.ReadByte()) != 0 || nbr.BaseStream.Position > start + DataOffset) // 0 = End list
{
if (option == 1) continue; // 1 = No Option
if (option == 2) // Max Segm size
{
byte length = nbr.ReadByte();
byte[] cur = new byte[length];
for (byte i = 0; i < length; i++)
{
cur[i] = nbr.ReadByte();
}
Array.Resize(ref Options, Options.Length + 1);
Options[Options.Length - 1] = cur;
}
}
long dataLength = DataOffset - optionsStart;
Data = new byte[dataLength];
for (int i = 0; i < dataLength; i++)
{
Data[i] = nbr.ReadByte();
}
}
public DnsAnswer(NetBinaryReader nbr)
{
Name = nbr.ReadLblOrPntString();
Type = (QType)nbr.ReadUInt16();
ushort rawClass = nbr.ReadUInt16();
if (rawClass > 65279) rawClass = 0;
else if (rawClass > 4 && rawClass < 252) rawClass = 2;
else if (rawClass > 255 && rawClass < 65280) rawClass = 2;
Class = (DnsClass)rawClass;
TTL = nbr.ReadUInt32();
ByteCount = nbr.ReadUInt16();
HandleRData(nbr);
}