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DnsServer: MergeResponseAnswers changes done to allow authority records only when there are 0 answers.

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Shreyas Zare
2017-01-14 02:18:19 +05:30
parent 1f9ec2ba57
commit 2f855ee283
1 changed files with 7 additions and 7 deletions
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14
DnsServerCore/DnsServer.cs
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@@ -413,25 +413,25 @@ namespace DnsServerCore
case 1:
DnsDatagram responseReceived = responses[0];
return new DnsDatagram(new DnsHeader(request.Header.Identifier, true, request.Header.OPCODE, false, false, true, true, false, false, responseReceived.Header.RCODE, request.Header.QDCOUNT, responseReceived.Header.ANCOUNT, responseReceived.Header.NSCOUNT, responseReceived.Header.ARCOUNT), request.Question, responseReceived.Answer, responseReceived.Authority, responseReceived.Additional);
if (responseReceived.Answer.Length == 0)
return new DnsDatagram(new DnsHeader(request.Header.Identifier, true, request.Header.OPCODE, false, false, true, true, false, false, responseReceived.Header.RCODE, request.Header.QDCOUNT, responseReceived.Header.ANCOUNT, responseReceived.Header.NSCOUNT, 0), request.Question, responseReceived.Answer, responseReceived.Authority, null);
else
return new DnsDatagram(new DnsHeader(request.Header.Identifier, true, request.Header.OPCODE, false, false, true, true, false, false, responseReceived.Header.RCODE, request.Header.QDCOUNT, responseReceived.Header.ANCOUNT, 0, 0), request.Question, responseReceived.Answer, null, null);
default:
List<DnsResourceRecord> responseAnswer = new List<DnsResourceRecord>();
List<DnsResourceRecord> responseAuthority = new List<DnsResourceRecord>();
List<DnsResourceRecord> responseAdditional = new List<DnsResourceRecord>();
foreach (DnsDatagram response in responses)
{
responseAnswer.AddRange(response.Answer);
if (response.Authority != null)
if ((response.Answer.Length == 0) && (response.Authority != null))
responseAuthority.AddRange(response.Authority);
if (response.Additional != null)
responseAuthority.AddRange(response.Additional);
}
return new DnsDatagram(new DnsHeader(request.Header.Identifier, true, request.Header.OPCODE, false, false, true, true, false, false, responses[0].Header.RCODE, request.Header.QDCOUNT, Convert.ToUInt16(responseAnswer.Count), Convert.ToUInt16(responseAuthority.Count), Convert.ToUInt16(responseAdditional.Count)), request.Question, responseAnswer.ToArray(), responseAuthority.ToArray(), responseAdditional.ToArray());
return new DnsDatagram(new DnsHeader(request.Header.Identifier, true, request.Header.OPCODE, false, false, true, true, false, false, responses[0].Header.RCODE, request.Header.QDCOUNT, Convert.ToUInt16(responseAnswer.Count), Convert.ToUInt16(responseAuthority.Count), 0), request.Question, responseAnswer.ToArray(), responseAuthority.ToArray(), null);
}
}