public DnsMessage(byte[] data)
{
Timestamp = DateTime.Now;
DnsReader byteReader = new DnsReader(data);
// Header
Header = new Header(byteReader);
// Question, Answer, Authority, Additional Counts
Questions = new Question[this.QuestionRecordCount];
Answers = new Answer[this.AnswerRecordCount];
Authorities = new Authority[this.AuthorityRecordCount];
Additionals = new Additional[this.AdditionalRecordCount];
// Read Records
for (int i = 0; i < this.QuestionRecordCount; i++)
{
this.Questions[i] = new Question(byteReader);
}
for (int i = 0; i < this.AnswerRecordCount; i++)
{
this.Answers[i] = new Answer(byteReader);
}
for (int i = 0; i < this.AuthorityRecordCount; i++)
{
this.Authorities[i] = new Authority(byteReader);
}
for (int i = 0; i < this.AdditionalRecordCount; i++)
{
this.Additionals[i] = new Additional(byteReader);
}
}
public DnsMessage()
{
Timestamp = DateTime.Now;
Header = new Header();
Header.TransactionId = (ushort)RANDOM.Next(ushort.MaxValue);
Header.QR = false;
Header.OperationCode = OperationCode.Query;
Questions = new Question[0];
Answers = new Answer[0];
Authorities = new Authority[0];
Additionals = new Additional[0];
}
public override string ToString()
{
StringBuilder sb = new StringBuilder();
sb.AppendLine();
sb.AppendLine(" DNS PACKET");
sb.AppendLine(string.Concat(" Message Timestamp : ", this.Timestamp.ToLocalTime().ToString()));
sb.AppendLine(string.Concat(" Transaction Id (ID) : ", this.TransactionId.ToHexString("0x")));
sb.AppendLine(string.Concat(" Is Query (RQ) : ", this.IsQuery.ToString()));
sb.AppendLine(string.Concat(" Operation Code (Opcode) : ", this.OperationCode.ToString()));
sb.AppendLine(string.Concat(" Is Authoritive Answer (AA) : ", this.IsAuthoritiveAnswer.ToString()));
sb.AppendLine(string.Concat(" Is Truncated (TC) : ", this.IsTruncated.ToString()));
sb.AppendLine(string.Concat(" Is Recursion Desired (RD) : ", this.IsRecursionDesired.ToString()));
sb.AppendLine(string.Concat(" Is Recursion Available (RA) : ", this.IsRecursionAvailable.ToString()));
sb.AppendLine(string.Concat(" Response Code (RCODE) : ", this.ResponseCode.ToString()));
sb.AppendLine(string.Concat(" Question Count (QDCOUNT) : ", this.QuestionRecordCount.ToString()));
foreach (Question question in this.Questions)
{
Question record = question as Question;
if (record != null)
{
sb.AppendLine(string.Concat(" -Question Record (Name) : ", record.Domain.ToString()));
sb.AppendLine(string.Concat(" -Class : ", record.Class.ToString()));
sb.AppendLine(string.Concat(" -Type : ", record.Type.ToString()));
}
}
sb.AppendLine(string.Concat(" Answer Count (ANCOUNT) : ", this.AnswerRecordCount.ToString()));
foreach (Answer answer in this.Answers)
{
Answer record = answer as Answer;
if (record != null)
{
sb.AppendLine(string.Concat(" -Answer Record (Name) : ", record.Domain.ToString()));
sb.AppendLine(string.Concat(" -Class : ", record.Class.ToString()));
sb.AppendLine(string.Concat(" -Type : ", record.Type.ToString()));
sb.AppendLine(string.Concat(" -Ttl : ", record.Ttl.ToString()));
sb.AppendLine(string.Concat(" -Record : ", record.Record.ToString()));
}
}
sb.AppendLine(string.Concat(" Additional Count (ARCOUNT) : ", this.AdditionalRecordCount.ToString()));
foreach (Additional additional in this.Additionals)
{
Additional record = additional as Additional;
if (record != null)
{
sb.AppendLine(string.Concat(" -Additional Record (Name) : ", record.Domain.ToString()));
sb.AppendLine(string.Concat(" -Class : ", record.Class.ToString()));
sb.AppendLine(string.Concat(" -Type : ", record.Type.ToString()));
sb.AppendLine(string.Concat(" -Ttl : ", record.Ttl.ToString()));
sb.AppendLine(string.Concat(" -Record : ", record.Record.ToString()));
}
}
sb.AppendLine(string.Concat(" Authority Count (NACOUNT) : ", this.AuthorityRecordCount.ToString()));
foreach (Authority authority in this.Authorities)
{
Authority record = authority as Authority;
if (record != null)
{
sb.AppendLine(string.Concat(" -Authority Record (Name) : ", record.Domain.ToString()));
sb.AppendLine(string.Concat(" -Class : ", record.Class.ToString()));
sb.AppendLine(string.Concat(" -Type : ", record.Type.ToString()));
sb.AppendLine(string.Concat(" -Ttl : ", record.Ttl.ToString()));
sb.AppendLine(string.Concat(" -Record : ", record.Record.ToString()));
}
}
sb.AppendLine();
return(sb.ToString());
}