public static DefaultDnsResponse FromArray(byte[] message)
{
DnsMessageHeader header = DnsMessageHeader.FromArray(message);
int offset = header.Size;
if (!header.Response || header.QuestionCount == 0)
{
throw new ArgumentException("Invalid response message");
}
if (header.Truncated)
{
return(new DefaultDnsResponse(header,
DnsQuestion.GetAllFromArray(message, offset, header.QuestionCount),
new List <IResourceRecord>(),
new List <IResourceRecord>(),
new List <IResourceRecord>()));
}
return(new DefaultDnsResponse(header,
DnsQuestion.GetAllFromArray(message, offset, header.QuestionCount, out offset),
ResourceRecordFactory.GetAllFromArray(message, offset, header.AnswerRecordCount, out offset),
ResourceRecordFactory.GetAllFromArray(message, offset, header.AuthorityRecordCount, out offset),
ResourceRecordFactory.GetAllFromArray(message, offset, header.AdditionalRecordCount, out offset)));
}
public DefaultDnsResponse(DnsMessageHeader header, IList <DnsQuestion> questions, IList <IResourceRecord> answers,
IList <IResourceRecord> authority, IList <IResourceRecord> additional)
{
this.header = header;
this.questions = questions;
this.answers = answers;
this.authority = authority;
this.additional = additional;
}
public DefaultDnsRequest()
{
this.questions = new List <DnsQuestion>();
this.header = new DnsMessageHeader();
this.additional = new List <IResourceRecord>();
this.header.OperationCode = DnsOperationCode.Query;
this.header.Response = false;
this.header.Id = RANDOM.Next(UInt16.MaxValue);
}
public DefaultDnsResponse()
{
this.header = new DnsMessageHeader();
this.questions = new List <DnsQuestion>();
this.answers = new List <IResourceRecord>();
this.authority = new List <IResourceRecord>();
this.additional = new List <IResourceRecord>();
this.header.Response = true;
this.header.Id = RANDOM.Next(UInt16.MaxValue);
}
public DefaultDnsRequest(IDnsRequest request)
{
this.header = new DnsMessageHeader();
this.questions = new List <DnsQuestion>(request.Questions);
this.additional = new List <IResourceRecord>(request.AdditionalRecords);
this.header.Response = false;
Id = request.Id;
OperationCode = request.OperationCode;
RecursionDesired = request.RecursionDesired;
}
public DefaultDnsResponse(IDnsResponse response)
{
this.header = new DnsMessageHeader();
this.questions = new List <DnsQuestion>(response.Questions);
this.answers = new List <IResourceRecord>(response.AnswerRecords);
this.authority = new List <IResourceRecord>(response.AuthorityRecords);
this.additional = new List <IResourceRecord>(response.AdditionalRecords);
this.header.Response = true;
Id = response.Id;
RecursionAvailable = response.RecursionAvailable;
AuthorativeServer = response.AuthorativeServer;
OperationCode = response.OperationCode;
ResponseCode = response.ResponseCode;
}
public static DefaultDnsRequest FromArray(byte[] message)
{
DnsMessageHeader header = DnsMessageHeader.FromArray(message);
int offset = header.Size;
if (header.Response || header.QuestionCount == 0 ||
header.AnswerRecordCount + header.AuthorityRecordCount > 0 ||
header.ResponseCode != DnsResponseCode.NoError)
{
throw new ArgumentException("Invalid request message");
}
return(new DefaultDnsRequest(header,
DnsQuestion.GetAllFromArray(message, offset, header.QuestionCount, out offset),
ResourceRecordFactory.GetAllFromArray(message, offset, header.AdditionalRecordCount, out offset)));
}
public DefaultDnsRequest(DnsMessageHeader header, IList <DnsQuestion> questions, IList <IResourceRecord> additional)
{
this.header = header;
this.questions = questions;
this.additional = additional;
}
