Directory ApacheDS
  1. Directory ApacheDS
  2. DIRSERVER-1093

the ResourceRecordEncoder and QuestionRecordEncoder have bug for empty domainName:(

    Details

    • Type: Bug Bug
    • Status: Resolved
    • Priority: Major Major
    • Resolution: Fixed
    • Affects Version/s: 1.5.1
    • Fix Version/s: 2.0.0-M7
    • Component/s: dns
    • Labels:
      None
    • Environment:
      Windows XP , apacheds-protocol-dns-1.5.1.jar

      Description

      When I use dig trace for Test the apache dns server. the QuestionRecord and ResourceRecord not encoded right for the empty Domain Name.

      my Test command is:

      E:\bind>dig @10.108.20.126 618119.com +trace

      Then found this bug is caeused by the method "encodeDomainName" in QuestionRecordEncoder.java and "putDomainName" in ResourceRecordEncoder.java.

      follow code can be test to get "labels.length == 1";

      [code]
      String s = "";
      String[] labels = new String[0];
      labels = s.split("
      .");
      System.out.println("labels.length == " + labels.length);
      [/code]

      so i fix this bug by follow change :

      [code]
      String[] labels = domainName.split( "
      ." );
      [/code]

      change to:

      [code]
      String[] labels = new String[0];
      if (domainName != null && domainName.length() > 0)

      { labels = domainName.split("\\."); }

      [/code]

      Please fix the bug

      1. correct4trace.jpg
        173 kB
        lizongbo
      2. error4trace.jpg
        182 kB
        lizongbo
      3. testcommand.jpg
        86 kB
        lizongbo

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          People

          • Assignee:
            Enrique Rodriguez
            Reporter:
            lizongbo
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            Dates

            • Created:
              Updated:
              Resolved:

              Development