public RR(RecordReader rr)
{
this.NAME = rr.ReadDomainName();
this.TYPE = (TYPE)rr.ReadUInt16();
this.CLASS = (CLASS)rr.ReadUInt16();
this.TTL = rr.ReadUInt32();
this.RDLENGTH = rr.ReadUInt16();
//begin to read a RDATA
this.RECORD = rr.ReadRecord(TYPE, RDLENGTH);
}
/// <summary>
/// Read a Domain name.
/// </summary>
/// <returns></returns>
public string ReadDomainName()
{
var name = new StringBuilder();
int length = 0;
// get the length of the first label
while ((length = this.ReadByte()) != 0)
{
// top 2 bits set denotes domain name compression and to reference elsewhere
//0xc0 -> Name is a pointer.
if ((length & 0xc0) == 0xc0)
{
// work out the existing domain name, copy this pointer
var newRecordReader = new RecordReader(_buffer, (length & 0x3f) << 8 | this.ReadByte());
name.Append(newRecordReader.ReadDomainName());
return(name.ToString());
}
// if not using compression, copy a char at a time to the domain name
while (length > 0)
{
name.Append(this.ReadChar());
length--;
}
name.Append('.');
}
if (name.Length == 0)
{
return(".");
}
else
{
return(name.ToString());
}
}
public Question(RecordReader rr)
{
this.QName = rr.ReadDomainName();
this.QType = (QTYPE)rr.ReadUInt16();
this.QClass = (QCLASS)rr.ReadUInt16();
}