Examples of org.xbill.DNS.OPTRecord$Option

org.xbill.DNS.OPTRecord
Options - describes Extended DNS (EDNS) properties of a Message. No specific options are defined other than those specified in the header. An OPT should be generated by Resolver. EDNS is a method to extend the DNS protocol while providing backwards compatibility and not significantly changing the protocol. This implementation of EDNS is mostly complete at level 0. @see Message @see Resolver @author Brian Wellington

  public static void main(String[] args) throws Exception {
    DefaultOptionBuilder obuilder = new DefaultOptionBuilder();
    ArgumentBuilder abuilder = new ArgumentBuilder();
    GroupBuilder gbuilder = new GroupBuilder();
    
    Option inputOpt = DefaultOptionCreator.inputOption().create();
    
    Option outputOpt = DefaultOptionCreator.outputOption().create();
    
    Option labelOpt = obuilder.withLongName("label").withRequired(true).withArgument(
      abuilder.withName("label").withMinimum(1).withMaximum(1).create()).withDescription("The label of the file")
        .withShortName("l").create();
    
    Option analyzerOpt = obuilder.withLongName("analyzer").withArgument(
      abuilder.withName("analyzer").withMinimum(1).withMaximum(1).create()).withDescription(
      "The fully qualified class name of the analyzer to use. "
          + "Must have a no-arg constructor.  Default is the StandardAnalyzer").withShortName("a").create();
    
    Option charsetOpt = obuilder.withLongName("charset").withArgument(
      abuilder.withName("charset").withMinimum(1).withMaximum(1).create()).withDescription(
      "The character encoding of the input file").withShortName("c").create();
    
    Option collapseOpt = obuilder.withLongName("collapse").withRequired(true).withArgument(
      abuilder.withName("collapse").withMinimum(1).withMaximum(1).create()).withDescription(
      "Collapse a whole directory to a single file, one doc per line").withShortName("p").create();
    
    Option helpOpt = DefaultOptionCreator.helpOption();
    Group group = gbuilder.withName("Options").withOption(inputOpt).withOption(outputOpt).withOption(labelOpt)
        .withOption(analyzerOpt).withOption(charsetOpt).withOption(collapseOpt).withOption(helpOpt).create();
    try {
      Parser parser = new Parser();
      parser.setGroup(group);

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  }


  public static void main(String[] args) throws IOException, InterruptedException, ClassNotFoundException {
    GroupBuilder gbuilder = new GroupBuilder();


    Option inputOpt = DefaultOptionCreator.inputOption().withRequired(false).create();
    Option outputOpt = DefaultOptionCreator.outputOption().withRequired(false).create();
    Option helpOpt = DefaultOptionCreator.helpOption();
    Group group = gbuilder.withName("Options").withOption(inputOpt).withOption(outputOpt).withOption(helpOpt).create();


    try {
      Parser parser = new Parser();
      parser.setGroup(group);

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      if (tsig == null || tsig.verify(query, in, length, null) != Rcode.NOERROR) {
        return formerrMessage(in);
      }
    }


    OPTRecord queryOPT = query.getOPT();
    if (queryOPT != null && queryOPT.getVersion() > 0) {
      // badversion = true;
    }


    if (socket != null) {
      maxLength = 65535;
    } else if (queryOPT != null) {
      maxLength = Math.max(queryOPT.getPayloadSize(), 512);
    } else {
      maxLength = 512;
    }


    if (queryOPT != null && (queryOPT.getFlags() & ExtendedFlags.DO) != 0) {
      flags = FLAG_DNSSECOK;
    }


    Message response = new Message(query.getHeader().getID());
    response.getHeader().setFlag(Flags.QR);
    if (query.getHeader().getFlag(Flags.RD)) {
      response.getHeader().setFlag(Flags.RD);
    }
    response.addRecord(queryRecord, Section.QUESTION);


    Name name = queryRecord.getName();
    int type = queryRecord.getType();
    int dclass = queryRecord.getDClass();
    if (type == Type.AXFR && socket != null) {
      return doAXFR(name, query, tsig, queryTSIG, socket);
    }
    if (!Type.isRR(type) && type != Type.ANY) {
      return errorMessage(query, Rcode.NOTIMP);
    }


    byte rcode = addAnswer(response, name, type, dclass, 0, flags);
    if (rcode != Rcode.NOERROR && rcode != Rcode.NXDOMAIN) {
      return errorMessage(query, rcode);
    }


    addAdditional(response, flags);


    if (queryOPT != null) {
      int optflags = (flags == FLAG_DNSSECOK) ? ExtendedFlags.DO : 0;
      OPTRecord opt = new OPTRecord((short) 4096, rcode, (byte) 0, optflags);
      response.addRecord(opt, Section.ADDITIONAL);
    }


    response.setTSIG(tsig, Rcode.NOERROR, queryTSIG);
    return response.toWire(maxLength);

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        if (header.getOpcode() != Opcode.QUERY)
            return errorMessage(query, Rcode.NOTIMP);


        Record queryRecord = query.getQuestion();


        OPTRecord queryOPT = query.getOPT();
        if (queryOPT != null && queryOPT.getVersion() > 0) {
        }


        if (s != null)
            maxLength = 65535;
        else if (queryOPT != null)
            maxLength = Math.max(queryOPT.getPayloadSize(), 512);
        else
            maxLength = 512;


        if (queryOPT != null && (queryOPT.getFlags() & ExtendedFlags.DO) != 0)
            flags = FLAG_DNSSECOK;


        Message response = new Message(query.getHeader().getID());
        response.getHeader().setFlag(Flags.QR);
        if (query.getHeader().getFlag(Flags.RD))
            response.getHeader().setFlag(Flags.RD);
        response.addRecord(queryRecord, Section.QUESTION);


        Name name = queryRecord.getName();
        int type = queryRecord.getType();
        int dclass = queryRecord.getDClass();
        if (!Type.isRR(type) && type != Type.ANY)
            return errorMessage(query, Rcode.NOTIMP);


        byte rcode = addAnswer(response, name, type, dclass, 0, flags);
        
        // TIMEOUT
        if (rcode == -1) {
            return null;
        }
        
        if (rcode != Rcode.NOERROR && rcode != Rcode.NXDOMAIN)
            return errorMessage(query, rcode);


        addAdditional(response, flags);


        if (queryOPT != null) {
            int optflags = (flags == FLAG_DNSSECOK) ? ExtendedFlags.DO : 0;
            OPTRecord opt = new OPTRecord((short) 4096, rcode, (byte) 0,
                    optflags);
            response.addRecord(opt, Section.ADDITIONAL);
        }


        return response.toWire(maxLength);

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        if (header.getOpcode() != Opcode.QUERY)
            return errorMessage(query, Rcode.NOTIMP);


        Record queryRecord = query.getQuestion();


        OPTRecord queryOPT = query.getOPT();
        if (queryOPT != null && queryOPT.getVersion() > 0) {
        }


        if (s != null)
            maxLength = 65535;
        else if (queryOPT != null)
            maxLength = Math.max(queryOPT.getPayloadSize(), 512);
        else
            maxLength = 512;


        if (queryOPT != null && (queryOPT.getFlags() & ExtendedFlags.DO) != 0)
            flags = FLAG_DNSSECOK;


        Message response = new Message(query.getHeader().getID());
        response.getHeader().setFlag(Flags.QR);
        if (query.getHeader().getFlag(Flags.RD))
            response.getHeader().setFlag(Flags.RD);
        response.addRecord(queryRecord, Section.QUESTION);


        Name name = queryRecord.getName();
        int type = queryRecord.getType();
        int dclass = queryRecord.getDClass();
        if (!Type.isRR(type) && type != Type.ANY)
            return errorMessage(query, Rcode.NOTIMP);


        byte rcode = addAnswer(response, name, type, dclass, 0, flags);
        
        // TIMEOUT
        if (rcode == -1) {
            return null;
        }
        
        if (rcode != Rcode.NOERROR && rcode != Rcode.NXDOMAIN)
            return errorMessage(query, rcode);


        addAdditional(response, flags);


        if (queryOPT != null) {
            int optflags = (flags == FLAG_DNSSECOK) ? ExtendedFlags.DO : 0;
            OPTRecord opt = new OPTRecord((short) 4096, rcode, (byte) 0,
                    optflags);
            response.addRecord(opt, Section.ADDITIONAL);
        }


        return response.toWire(maxLength);

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        if (header.getOpcode() != Opcode.QUERY)
            return errorMessage(query, Rcode.NOTIMP);


        Record queryRecord = query.getQuestion();


        OPTRecord queryOPT = query.getOPT();
        if (queryOPT != null && queryOPT.getVersion() > 0) {
        }


        if (s != null)
            maxLength = 65535;
        else if (queryOPT != null)
            maxLength = Math.max(queryOPT.getPayloadSize(), 512);
        else
            maxLength = 512;


        if (queryOPT != null && (queryOPT.getFlags() & ExtendedFlags.DO) != 0)
            flags = FLAG_DNSSECOK;


        Message response = new Message(query.getHeader().getID());
        response.getHeader().setFlag(Flags.QR);
        if (query.getHeader().getFlag(Flags.RD))
            response.getHeader().setFlag(Flags.RD);
        response.addRecord(queryRecord, Section.QUESTION);


        Name name = queryRecord.getName();
        int type = queryRecord.getType();
        int dclass = queryRecord.getDClass();
        if (!Type.isRR(type) && type != Type.ANY)
            return errorMessage(query, Rcode.NOTIMP);


        byte rcode = addAnswer(response, name, type, dclass, 0, flags);
        
        // TIMEOUT
        if (rcode == -1) {
            return null;
        }
        
        if (rcode != Rcode.NOERROR && rcode != Rcode.NXDOMAIN)
            return errorMessage(query, rcode);


        addAdditional(response, flags);


        if (queryOPT != null) {
            int optflags = (flags == FLAG_DNSSECOK) ? ExtendedFlags.DO : 0;
            OPTRecord opt = new OPTRecord((short) 4096, rcode, (byte) 0,
                    optflags);
            response.addRecord(opt, Section.ADDITIONAL);
        }


        return response.toWire(maxLength);

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      if (tsig == null || tsig.verify(query, in, length, null) != Rcode.NOERROR) {
        return formerrMessage(in);
      }
    }


    OPTRecord queryOPT = query.getOPT();
    if (queryOPT != null && queryOPT.getVersion() > 0) {
      // badversion = true;
    }


    if (socket != null) {
      maxLength = 65535;
    } else if (queryOPT != null) {
      maxLength = Math.max(queryOPT.getPayloadSize(), 512);
    } else {
      maxLength = 512;
    }


    if (queryOPT != null && (queryOPT.getFlags() & ExtendedFlags.DO) != 0) {
      flags = FLAG_DNSSECOK;
    }


    Message response = new Message(query.getHeader().getID());
    response.getHeader().setFlag(Flags.QR);
    if (query.getHeader().getFlag(Flags.RD)) {
      response.getHeader().setFlag(Flags.RD);
    }
    response.addRecord(queryRecord, Section.QUESTION);


    Name name = queryRecord.getName();
    int type = queryRecord.getType();
    int dclass = queryRecord.getDClass();
    if (type == Type.AXFR && socket != null) {
      return doAXFR(name, query, tsig, queryTSIG, socket);
    }
    if (!Type.isRR(type) && type != Type.ANY) {
      return errorMessage(query, Rcode.NOTIMP);
    }


    byte rcode = addAnswer(response, name, type, dclass, 0, flags);
    if (rcode != Rcode.NOERROR && rcode != Rcode.NXDOMAIN) {
      return errorMessage(query, rcode);
    }


    addAdditional(response, flags);


    if (queryOPT != null) {
      int optflags = (flags == FLAG_DNSSECOK) ? ExtendedFlags.DO : 0;
      OPTRecord opt = new OPTRecord((short) 4096, rcode, (byte) 0, optflags);
      response.addRecord(opt, Section.ADDITIONAL);
    }


    response.setTSIG(tsig, Rcode.NOERROR, queryTSIG);
    return response.toWire(maxLength);

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            if (tsig == null ||
                    tsig.verify(query, in, length, null) != Rcode.NOERROR)
                return formerrMessage(in);
        }


        OPTRecord queryOPT = query.getOPT();
        if (queryOPT != null && queryOPT.getVersion() > 0)
            badversion = true;


        if (s != null)
            maxLength = 65535;
        else if (queryOPT != null)
            maxLength = Math.max(queryOPT.getPayloadSize(), 512);
        else
            maxLength = 512;


        if (queryOPT != null && (queryOPT.getFlags() & ExtendedFlags.DO) != 0)
            flags = FLAG_DNSSECOK;


        Message response = new Message(query.getHeader().getID());
        response.getHeader().setFlag(Flags.QR);
        if (query.getHeader().getFlag(Flags.RD))
            response.getHeader().setFlag(Flags.RD);
        response.addRecord(queryRecord, Section.QUESTION);


        Name name = queryRecord.getName();
        int type = queryRecord.getType();
        int dclass = queryRecord.getDClass();
        if (type == Type.AXFR && s != null)
            return doAXFR(name, query, tsig, queryTSIG, s);
        if (!Type.isRR(type) && type != Type.ANY)
            return errorMessage(query, Rcode.NOTIMP);


        byte rcode = addAnswer(response, name, type, dclass, 0, flags);
        if (rcode != Rcode.NOERROR && rcode != Rcode.NXDOMAIN)
            return errorMessage(query, rcode);


        addAdditional(response, flags);


        if (queryOPT != null) {
            int optflags = (flags == FLAG_DNSSECOK) ? ExtendedFlags.DO : 0;
            OPTRecord opt = new OPTRecord((short) 4096, rcode, (byte) 0,
                    optflags);
            response.addRecord(opt, Section.ADDITIONAL);
        }


        response.setTSIG(tsig, Rcode.NOERROR, queryTSIG);

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        if (header.getOpcode() != Opcode.QUERY)
            return errorMessage(query, Rcode.NOTIMP);


        Record queryRecord = query.getQuestion();


        OPTRecord queryOPT = query.getOPT();
        if (queryOPT != null && queryOPT.getVersion() > 0) {
        }


        if (s != null)
            maxLength = 65535;
        else if (queryOPT != null)
            maxLength = Math.max(queryOPT.getPayloadSize(), 512);
        else
            maxLength = 512;


        if (queryOPT != null && (queryOPT.getFlags() & ExtendedFlags.DO) != 0)
            flags = FLAG_DNSSECOK;


        Message response = new Message(query.getHeader().getID());
        response.getHeader().setFlag(Flags.QR);
        if (query.getHeader().getFlag(Flags.RD))
            response.getHeader().setFlag(Flags.RD);
        response.addRecord(queryRecord, Section.QUESTION);


        Name name = queryRecord.getName();
        int type = queryRecord.getType();
        int dclass = queryRecord.getDClass();
        if (!Type.isRR(type) && type != Type.ANY)
            return errorMessage(query, Rcode.NOTIMP);


        byte rcode = addAnswer(response, name, type, dclass, 0, flags);
        
        // TIMEOUT
        if (rcode == -1) {
            return null;
        }
        
        if (rcode != Rcode.NOERROR && rcode != Rcode.NXDOMAIN)
            return errorMessage(query, rcode);


        addAdditional(response, flags);


        if (queryOPT != null) {
            int optflags = (flags == FLAG_DNSSECOK) ? ExtendedFlags.DO : 0;
            OPTRecord opt = new OPTRecord((short) 4096, rcode, (byte) 0,
                    optflags);
            response.addRecord(opt, Section.ADDITIONAL);
        }


        return response.toWire(maxLength);

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    pcapReader = new TestableDnsPcapReader();
  }


  @Test
  public void normalizeOPTRecord() throws IOException {
    OPTRecord record = new OPTRecord(4096, 0, 0, 32768);
    assertEquals(". 32768 CLASS4096 OPT ; payload 4096, xrcode 0, version 0, flags 32768",
                 pcapReader.normalizeRecordString(record.toString()));
  }

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