RFC 1035: 3.4.1. A RDATA format +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ | ADDRESS | +--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+--+ where: ADDRESS A 32 bit Internet address. Hosts that have multiple Internet addresses will have multiple A records. A records cause no additional section processing. The RDATA section of an A line in a master file is an Internet address expressed as four decimal numbers separated by dots without any imbedded spaces (e.g., "10.2.0.52" or "192.0.5.6").
Наследование: DnsRecordBase, IDnsRecord
Пример #1
0
        public static IDnsRecord Create(ref MemoryStream ms)
        {
            IDnsRecord dnsRecord;
            // Have to start out with an unknown record, since we have to parse the entire
            // header before we can determine the type of DNS record it is.
            // TODO: Consider other options.

            // start as an unknown type, then create a known type, parse the response
            // and return the object.
            //DnsRecordBase dr = new DnsUnknownRecord();
            //dr.ParseRecordHeader(ref ms);

            RecordHeader dnsHeader = new RecordHeader();
            dnsHeader.ParseRecordHeader(ref ms);

            switch (dnsHeader.NsType)
            {
                case NsType.A:
                    {
                        dnsRecord = new ARecord(dnsHeader);
                        break;
                    }
                case NsType.AAAA:
                    {
                        dnsRecord = new AaaaRecord(dnsHeader);
                        break;
                    }
                case NsType.MX:
                    {
                        dnsRecord = new MxRecord(dnsHeader);
                        break;
                    }
                case NsType.RP:
                    {
                        dnsRecord = new RpRecord(dnsHeader);
                        break;
                    }
                case NsType.MR:
                    {
                        dnsRecord = new MrRecord(dnsHeader);
                        break;
                    }
                case NsType.MB:
                    {
                        dnsRecord = new MbRecord(dnsHeader);
                        break;
                    }
                case NsType.MG:
                    {
                        dnsRecord = new MgRecord(dnsHeader);
                        break;
                    }
                case NsType.NS:
                    {
                        dnsRecord = new NsRecord(dnsHeader);
                        break;
                    }
                case NsType.CNAME:
                    {
                        dnsRecord = new CNameRecord(dnsHeader);
                        break;
                    }
                case NsType.PTR:
                    {
                        dnsRecord = new PtrRecord(dnsHeader);
                        break;
                    }
                case NsType.HINFO:
                    {
                        dnsRecord = new HInfoRecord(dnsHeader);
                        break;
                    }
                case NsType.MINFO:
                    {
                        dnsRecord = new MInfoRecord(dnsHeader);
                        break;
                    }
                case NsType.X25:
                    {
                        dnsRecord = new X25Record(dnsHeader);
                        break;
                    }
                case NsType.TXT:
                    {
                        dnsRecord = new TxtRecord(dnsHeader);
                        break;
                    }
                case NsType.LOC:
                    {
                        dnsRecord = new LocRecord(dnsHeader);
                        break;
                    }
                case NsType.SOA:
                    {
                        dnsRecord = new SoaRecord(dnsHeader);
                        break;
                    }
                case NsType.SRV:
                    {
                        dnsRecord = new SrvRecord(dnsHeader);
                        break;
                    }
                case NsType.AFSDB:
                    {
                        dnsRecord = new AfsdbRecord(dnsHeader);
                        break;
                    }
                case NsType.ATMA:
                    {
                        dnsRecord = new AtmaRecord(dnsHeader);
                        break;
                    }
                case NsType.ISDN:
                    {
                        dnsRecord = new IsdnRecord(dnsHeader);
                        break;
                    }
                case NsType.RT:
                    {
                        dnsRecord = new RtRecord(dnsHeader);
                        break;
                    }
                case NsType.WKS:
                    {
                        dnsRecord = new WksRecord(dnsHeader);
                        break;
                    }
                case NsType.TSIG:
                    {
                        dnsRecord = new TSigRecord(dnsHeader);
                        break;
                    }
                default:
                    {
                        // Unknown type. parse and return the DnsUnknownRecord
                        dnsRecord = new UnknownRecord(dnsHeader);
                        break;
                    }
            }

            //dnsRecord.ParseRecordHeader(ref ms);
            dnsRecord.ParseRecord(ref ms);
            return dnsRecord;
        }
Пример #2
0
        public static IDnsRecord Create(ref MemoryStream ms)
        {
            IDnsRecord dnsRecord;
            // Have to start out with an unknown record, since we have to parse the entire
            // header before we can determine the type of DNS record it is.
            // TODO: Consider other options.

            // start as an unknown type, then create a known type, parse the response
            // and return the object.
            //DnsRecordBase dr = new DnsUnknownRecord();
            //dr.ParseRecordHeader(ref ms);

            RecordHeader dnsHeader = new RecordHeader();

            dnsHeader.ParseRecordHeader(ref ms);

            switch (dnsHeader.NsType)
            {
            case NsType.A:
            {
                dnsRecord = new ARecord(dnsHeader);
                break;
            }

            case NsType.AAAA:
            {
                dnsRecord = new AaaaRecord(dnsHeader);
                break;
            }

            case NsType.MX:
            {
                dnsRecord = new MxRecord(dnsHeader);
                break;
            }

            case NsType.RP:
            {
                dnsRecord = new RpRecord(dnsHeader);
                break;
            }

            case NsType.MR:
            {
                dnsRecord = new MrRecord(dnsHeader);
                break;
            }

            case NsType.MB:
            {
                dnsRecord = new MbRecord(dnsHeader);
                break;
            }

            case NsType.MG:
            {
                dnsRecord = new MgRecord(dnsHeader);
                break;
            }

            case NsType.NS:
            {
                dnsRecord = new NsRecord(dnsHeader);
                break;
            }

            case NsType.CNAME:
            {
                dnsRecord = new CNameRecord(dnsHeader);
                break;
            }

            case NsType.PTR:
            {
                dnsRecord = new PtrRecord(dnsHeader);
                break;
            }

            case NsType.HINFO:
            {
                dnsRecord = new HInfoRecord(dnsHeader);
                break;
            }

            case NsType.MINFO:
            {
                dnsRecord = new MInfoRecord(dnsHeader);
                break;
            }

            case NsType.X25:
            {
                dnsRecord = new X25Record(dnsHeader);
                break;
            }

            case NsType.TXT:
            {
                dnsRecord = new TxtRecord(dnsHeader);
                break;
            }

            case NsType.LOC:
            {
                dnsRecord = new LocRecord(dnsHeader);
                break;
            }

            case NsType.SOA:
            {
                dnsRecord = new SoaRecord(dnsHeader);
                break;
            }

            case NsType.SRV:
            {
                dnsRecord = new SrvRecord(dnsHeader);
                break;
            }

            case NsType.AFSDB:
            {
                dnsRecord = new AfsdbRecord(dnsHeader);
                break;
            }

            case NsType.ATMA:
            {
                dnsRecord = new AtmaRecord(dnsHeader);
                break;
            }

            case NsType.ISDN:
            {
                dnsRecord = new IsdnRecord(dnsHeader);
                break;
            }

            case NsType.RT:
            {
                dnsRecord = new RtRecord(dnsHeader);
                break;
            }

            case NsType.WKS:
            {
                dnsRecord = new WksRecord(dnsHeader);
                break;
            }

            case NsType.TSIG:
            {
                dnsRecord = new TSigRecord(dnsHeader);
                break;
            }

            default:
            {
                // Unknown type. parse and return the DnsUnknownRecord
                dnsRecord = new UnknownRecord(dnsHeader);
                break;
            }
            }

            //dnsRecord.ParseRecordHeader(ref ms);
            dnsRecord.ParseRecord(ref ms);
            return(dnsRecord);
        }