/// <summary> /// Creates a new instance of this class /// </summary> public DNSFrame() { lQuestions = new List <DNSQuestion>(); lAnswers = new List <DNSResourceRecord>(); lAuthorotive = new List <DNSResourceRecord>(); lAdditional = new List <DNSResourceRecord>(); dnsOperationCode = DNSOptCode.Query; dnsResponseCode = DNSResponseCode.NoError; }
/// <summary> /// Creates a new instance of this class by parsing the given data /// </summary> /// <param name="bData">The data to parse</param> public DNSFrame(byte[] bData) { sIdentifier = (short)((bData[0] << 8) + bData[1]); bQRFlag = (bData[2] & 0x80) > 0; dnsOperationCode = (DNSOptCode)((bData[2] >> 3) & 0x0F); bAAFlag = (bData[2] & 0x04) > 0; bTCFlag = (bData[2] & 0x02) > 0; bRDFlag = (bData[2] & 0x01) > 0; bRAFlag = (bData[3] & 0x80) > 0; dnsResponseCode = (DNSResponseCode)((bData[3]) & 0x0F); int iQCount = (bData[4] << 8) + bData[5]; int iACount = (bData[6] << 8) + bData[7]; int iAuthCount = (bData[8] << 8) + bData[9]; int iAddCount = (bData[10] << 8) + bData[11]; lQuestions = new List <DNSQuestion>(); lAnswers = new List <DNSResourceRecord>(); lAuthorotive = new List <DNSResourceRecord>(); lAdditional = new List <DNSResourceRecord>(); int iIndex = 12; while (lQuestions.Count < iQCount) { DNSQuestion qLast = new DNSQuestion(bData, ref iIndex); lQuestions.Add(qLast); } while (lAnswers.Count < iACount) { DNSResourceRecord rLast = new DNSResourceRecord(bData, ref iIndex); lAnswers.Add(rLast); } while (lAuthorotive.Count < iAuthCount) { DNSResourceRecord rLast = new DNSResourceRecord(bData, ref iIndex); lAuthorotive.Add(rLast); } while (lAdditional.Count < iAddCount) { DNSResourceRecord rLast = new DNSResourceRecord(bData, ref iIndex); lAdditional.Add(rLast); } }