Beispiel #1
0
 /// <summary>
 /// Create data record for AFSDB type from data buffer
 /// </summary>
 /// <param name="buffer"></param>
 public AfsdbRecord(DataBuffer buffer)
 {
     subType = buffer.ReadShortInt();
     domain  = buffer.ReadDomainName();
 }
Beispiel #2
0
 /// <summary>
 /// Common class for all record types that contain a preference and a domain name
 /// </summary>
 /// <param name="buffer"></param>
 public PrefAndDomain(DataBuffer buffer)
 {
     preference = buffer.ReadBEShortInt();
     domain     = buffer.ReadDomainName();
 }
Beispiel #3
0
 /// <summary>
 /// Create a Question record for Dns Answer
 /// </summary>
 /// <param name="buffer"></param>
 public Question(DataBuffer buffer)
 {
     domain    = buffer.ReadDomainName();
     recType   = (RecordType)buffer.ReadBEShortInt();
     classType = buffer.ReadBEShortInt();
 }
Beispiel #4
0
 /// <summary>
 /// Implementation Reference  RFC 1183
 /// </summary>
 /// <param name="buffer"></param>
 public RTRecord(DataBuffer buffer) : base(buffer)
 {
 }
Beispiel #5
0
        /// <summary>
        /// Given a byte array  interpret them as a DnsEntry
        /// </summary>
        /// <param name="response"></param>
        public DnsAnswer(byte[] response)
        {
            questions  = new List <Question>();
            answers    = new List <Answer>();
            servers    = new List <Server>();
            additional = new List <Record>();
            exceptions = new List <Exception>();
            DataBuffer buffer = new DataBuffer(response, 2);
            byte       bits1  = buffer.ReadByte();
            byte       bits2  = buffer.ReadByte();
            //Mask off return code
            int returnCode = bits2 & 15;

            if (returnCode > 6)
            {
                returnCode = 6;
            }
            this.returnCode = (ReturnCode)returnCode;
            //Get Additional Flags
            authoritative = TestBit(bits1, 2);
            recursive     = TestBit(bits2, 8);
            truncated     = TestBit(bits1, 1);

            int nQuestions  = buffer.ReadBEShortInt();
            int nAnswers    = buffer.ReadBEShortInt();
            int nServers    = buffer.ReadBEShortInt();
            int nAdditional = buffer.ReadBEShortInt();

            //read in questions
            for (int i = 0; i < nQuestions; i++)
            {
                try
                {
                    questions.Add(new Question(buffer));
                }
                catch (Exception ex)
                {
                    exceptions.Add(ex);
                }
            }
            //read in answers
            for (int i = 0; i < nAnswers; i++)
            {
                try
                {
                    answers.Add(new Answer(buffer));
                }
                catch (Exception ex)
                {
                    exceptions.Add(ex);
                }
            }
            //read in servers
            for (int i = 0; i < nServers; i++)
            {
                try
                {
                    servers.Add(new Server(buffer));
                }
                catch (Exception ex)
                {
                    exceptions.Add(ex);
                }
            }
            //read in additional records
            for (int i = 0; i < nAdditional; i++)
            {
                try
                {
                    additional.Add(new Record(buffer));
                }
                catch (Exception ex)
                {
                    exceptions.Add(ex);
                }
            }
        }
Beispiel #6
0
 /// <summary>
 /// Implementation Reference RFC 1035
 /// </summary>
 /// <param name="buffer"></param>
 /// <param name="?"></param>
 public NullRecord(DataBuffer buffer, int length) : base(buffer, length)
 {
 }
Beispiel #7
0
 public PtrRecord(DataBuffer buffer) : base(buffer)
 {
 }
Beispiel #8
0
 /// <summary>
 /// Implementation Reference RFC 2672
 /// </summary>
 /// <param name="buffer"></param>
 public DNameRecord(DataBuffer buffer) : base(buffer)
 {
 }