DnsMessage.cs

using System.Text;

namespace DnsMessageParser;

public class DnsMessage(byte[] udpPacket)
    : DnsHeader(udpPacket)
{
    public byte[] GetBytes()
    {
        return GetHeaderBytes();
    }

    public override string ToString()
    {
        var sb = new StringBuilder();

        sb.AppendLine("DNS Header Information:");
        sb.AppendLine($"  Packet Identifier: {PacketIdentifier}");
        sb.AppendLine($"  Query Response: {QueryResponse}");
        sb.AppendLine($"  Operation Code: {OperationCode}");
        sb.AppendLine($"  Authoritative Answer: {AuthoritativeAnswer}");
        sb.AppendLine($"  Truncation: {Truncation}");
        sb.AppendLine($"  Recursion Desired: {RecursionDesired}");
        sb.AppendLine($"  Recursion Available: {RecursionAvailable}");
        sb.AppendLine($"  Response Code: {ResponseCode}");
        sb.AppendLine($"  Question Count: {QuestionCount}");
        sb.AppendLine($"  Answer Record Count: {AnswerRecordCount}");
        sb.AppendLine($"  Authority Record Count: {AuthorityRecordCount}");
        sb.AppendLine($"  Additional Record Count: {AdditionalRecordCount}");

        sb.AppendLine("DNS Question Information:");
        foreach (var question in DnsQuestions)
        {
            sb.AppendLine($"  Domain Name: {question.DomainName}");
            sb.AppendLine($"  Type: {question.DnsType}");
            sb.AppendLine($"  Class: {question.DnsClass}");
        }

        sb.AppendLine("DNS Answer Information:");
        foreach (var answer in DnsAnswers)
        {
            sb.AppendLine($"  Domain Name: {answer.DomainName}");
            sb.AppendLine($"  Type: {answer.DnsType}");
            sb.AppendLine($"  Class: {answer.DnsClass}");
            sb.AppendLine($"  TTL: {answer.TimeToLive}");
            sb.AppendLine($"  Data: {answer.Data}");
        }

        return sb.ToString();
    }
}