C# (CSharp) PacketSniffer UDPData 예제들

예제 #1

파일: PacketHandler.cs 프로젝트: d3xt3-bitstechlab/PacketSniffer

 private void UDPHandler(ref byte[] PacketData)
 {
     UDPData UDP = new UDPData();
     IPHandler(UDP, ref PacketData);
     byte[] p_UDPData = new byte[PacketData.Length - UDP.IP_IHL];
     UDP.UDP_SourcePort = (ushort)IPAddress.NetworkToHostOrder(BitConverter.ToInt16(p_UDPData, 0));
     UDP.UDP_DestinationPort = (ushort)IPAddress.NetworkToHostOrder(BitConverter.ToInt16(p_UDPData, 2));
     UDP.UDP_Length = (ushort)IPAddress.NetworkToHostOrder(BitConverter.ToInt16(p_UDPData, 4));
     UDP.UDP_Checksum = (ushort)IPAddress.NetworkToHostOrder(BitConverter.ToInt16(p_UDPData, 6));
     if (!((UDP.IP_TotalLength - (UDP.IP_IHL + 8)) <= 0))
     {
         byte[] p_DataSend = new byte[UDP.IP_TotalLength - (8 + UDP.IP_IHL)];
         Buffer.BlockCopy(p_UDPData, 8, p_DataSend, 0, p_DataSend.Length);
         UDP.PacketDataCreate(ref p_DataSend);
         PRE.fire(UDP);
     }else return;
 }

예제 #2

파일: PacketHandler.cs 프로젝트: pinkeemm/PacketSniffer

        private void UDPHandler(ref byte[] PacketData)
        {
            UDPData UDP = new UDPData();

            IPHandler(UDP, ref PacketData);
            byte[] p_UDPData = new byte[PacketData.Length - UDP.IP_IHL];
            UDP.UDP_SourcePort      = (ushort)IPAddress.NetworkToHostOrder(BitConverter.ToInt16(p_UDPData, 0));
            UDP.UDP_DestinationPort = (ushort)IPAddress.NetworkToHostOrder(BitConverter.ToInt16(p_UDPData, 2));
            UDP.UDP_Length          = (ushort)IPAddress.NetworkToHostOrder(BitConverter.ToInt16(p_UDPData, 4));
            UDP.UDP_Checksum        = (ushort)IPAddress.NetworkToHostOrder(BitConverter.ToInt16(p_UDPData, 6));
            if (!((UDP.IP_TotalLength - (UDP.IP_IHL + 8)) <= 0))
            {
                byte[] p_DataSend = new byte[UDP.IP_TotalLength - (8 + UDP.IP_IHL)];
                Buffer.BlockCopy(p_UDPData, 8, p_DataSend, 0, p_DataSend.Length);
                UDP.PacketDataCreate(ref p_DataSend);
                PRE.fire(UDP);
            }
            else
            {
                return;
            }
        }