internal static DomainName Get(BackReferenceBinaryReader reader)
{
byte stringLength = reader.ReadByte();
if (stringLength >> 6 == 3)
{
//In case of pointer
ushort ptr;
BinaryHelper.FromBytes(new byte[] { (byte)(stringLength - (3 << 6)), reader.ReadByte() }, out ptr);
return(reader.Get <DomainName>(ptr));
}
else
{
DomainName dn = new DomainName();
reader.Register((int)reader.BaseStream.Position - 1, dn);
//stringLength = reader.ReadByte();
if (stringLength != 0)
{
dn.Add(Encoding.UTF8.GetString(reader.ReadBytes(stringLength), 0, stringLength));
//dn.Add(Encoding.UTF8.GetString(bytes, index + 1, bytes[index]));
dn.AddRange(DomainName.Get(reader));
}
//else
// index++;
return(dn);
}
}
public static DomainName FromBytes(byte[] bytes, ref int index)
{
if (bytes[index] >> 6 == 3)
{
//In case of pointer
ushort ptr;
bytes[index] -= 3 << 6;
BinaryHelper.FromBytes(bytes, index, out ptr);
bytes[index] += 3 << 6;
index += 2;
ptr = (ushort)(ptr << 2 >> 2);
int iPtr = ptr;
return(FromBytes(bytes, ref iPtr));
}
else
{
DomainName dn = new DomainName();
if (bytes[index] != 0)
{
dn.Add(Encoding.UTF8.GetString(bytes, index + 1, bytes[index]));
index += bytes[index] + 1;
dn.AddRange(DomainName.FromBytes(bytes, ref index));
}
else
{
index++;
}
return(dn);
}
}
internal static HostAddress Get(BinaryReader reader)
{
ushort byteCount;
BinaryHelper.FromBytes(reader.ReadBytes(2), out byteCount);
HostAddress ha = new HostAddress();
ha.Address = new IPAddress(reader.ReadBytes(byteCount));
return(ha);
}
public static Question FromBytes(byte[] bytes, ref int index)
{
Question q = new Question();
q.DomainName = DomainName.FromBytes(bytes, ref index);
ushort s;
BinaryHelper.FromBytes(bytes, index, out s);
index += 2;
q.Type = (QType)s;
BinaryHelper.FromBytes(bytes, index, out s);
q.Class = (QClass)s;
index += 2;
return(q);
}
