internal static CName Get(BinaryReader reader)
{
ushort byteCount = BinaryHelper.ReadUInt16(reader);
CName cName = new CName();
cName.CNAME = Encoding.UTF8.GetString(reader.ReadBytes(byteCount), 0, byteCount);
return(cName);
}
internal static Answer Get(BackReferenceBinaryReader reader)
{
Answer a = new Answer();
a.DomainName = DomainName.Get(reader);
a.Type = (Type)BinaryHelper.ReadUInt16(reader);
a.Class = (Class)BinaryHelper.ReadUInt16(reader);
a.Ttl = BinaryHelper.ReadUInt32(reader);
a.ResponseData = ResponseData.Get(a.Type, reader);
return(a);
}
internal static Srv Get(BackReferenceBinaryReader reader)
{
Srv srv = new Srv();
//Useless Datalength
reader.ReadBytes(2);
srv.Priority = BinaryHelper.ReadUInt16(reader);
srv.Weight = BinaryHelper.ReadUInt16(reader);
srv.Port = BinaryHelper.ReadUInt16(reader);
srv.Target = DomainName.Get(reader);
return(srv);
}
internal static Question Get(BackReferenceBinaryReader stream)
{
Question q = new Question();
q.DomainName = DomainName.Get(stream);
q.Type = (QType)BinaryHelper.ReadUInt16(stream);
ushort s = BinaryHelper.ReadUInt16(stream);
q.Class = (QClass)((ushort)(s << 1) >> 1);
q.CacheFlush = ((ushort)q.Class) != s;
return(q);
}
private static Message GetMessage(BackReferenceBinaryReader reader)
{
ushort id = BinaryHelper.ReadUInt16(reader);
Message m = new Message(id);
byte b = reader.ReadByte();
//Qr, Opcode, Aa, Tc, Rd
m.RecursionDesired = (b % 2) == 1;
b = (byte)(b >> 1);
m.Truncated = (b % 2) == 1;
b = (byte)(b >> 1);
m.AuthoritativeAnswer = (b % 2) == 1;
b = (byte)(b >> 1);
int opCodeNumber = b % 16;
m.OpCode = (OpCode)opCodeNumber;
b = (byte)(b >> 4);
m.QueryResponse = (Qr)b;
//Ra, Z, Rcode
b = reader.ReadByte();
m.RecursionAvailable = b > 127;
b = (byte)((b << 1) >> 1);
m.ResponseCode = (ResponseCode)b;
ushort questionEntryCount = BinaryHelper.ReadUInt16(reader);
ushort answerEntryCount = BinaryHelper.ReadUInt16(reader);
ushort authorityEntryCount = BinaryHelper.ReadUInt16(reader);
ushort additionalEntryCount = BinaryHelper.ReadUInt16(reader);
for (int i = 0; i < questionEntryCount; i++)
{
m.Questions.Add(Question.Get(reader));
}
for (int i = 0; i < answerEntryCount; i++)
{
m.Answers.Add(Answer.Get(reader));
}
for (int i = 0; i < authorityEntryCount; i++)
{
m.Authorities.Add(Answer.Get(reader));
}
for (int i = 0; i < additionalEntryCount; i++)
{
m.Additionals.Add(Answer.Get(reader));
}
return(m);
}
internal static Txt Get(BinaryReader reader)
{
Txt txt = new Txt();
ushort byteCount = BinaryHelper.ReadUInt16(reader), byteRead = 0;
while (byteRead < byteCount)
{
byte propertyLength = reader.ReadByte();
byteRead += (ushort)(propertyLength + 1);
txt.AddProperty(Encoding.UTF8.GetString(reader.ReadBytes(propertyLength), 0, propertyLength));
}
return(txt);
}
internal static ResponseData Get(BinaryReader reader)
{
ushort byteCount = BinaryHelper.ReadUInt16(reader);
UnknownResponseData data = new UnknownResponseData();
if (byteCount > 0)
{
data.Bytes = reader.ReadBytes(byteCount);
}
else
{
data.Bytes = new byte[0];
}
return(data);
}
