PingReply.cs source code in C# .NET

Source code for the .NET framework in C#

                        
Code:

                         / FX-1434 / FX-1434 / 1.0 / untmp / whidbey / REDBITS / ndp / fx / src / Net / System / Net / NetworkInformation / PingReply.cs / 1 / PingReply.cs
                        

                        
                            using System.Net.Sockets; 
using System.Runtime.InteropServices;

namespace System.Net.NetworkInformation
{ 

    public class PingReply 
    { 
        IPAddress address;
        PingOptions options; 
        IPStatus ipStatus;  // the status code returned by icmpsendecho, or the icmp status field on the raw socket
        long rtt;  // the round trip time.
        byte[] buffer; //buffer of the data
 

        internal PingReply(){ 
        } 

        internal PingReply (IPStatus ipStatus) { 
            this.ipStatus = ipStatus;
            buffer = new byte[0];
        }
 
        // The downlevel constructor.
        internal PingReply (byte[] data, int dataLength, IPAddress address, int time) { 
            this.address = address; 
            rtt = time;
 

            ipStatus = GetIPStatus ((IcmpV4Type)data[20],(IcmpV4Code) data[21]);

            if (ipStatus == IPStatus.Success) { 
                buffer = new byte[dataLength - 28];
                Array.Copy (data, 28, buffer, 0, dataLength - 28); 
            } 
            else
                buffer = new byte[0]; 
        }


        // the main constructor for the icmpsendecho apis 
        internal PingReply (IcmpEchoReply reply) {
            address = new IPAddress (reply.address); 
            ipStatus = (IPStatus)reply.status; //the icmpsendecho ip status codes 

            //only copy the data if we succeed w/ the ping operation 
            if (ipStatus == IPStatus.Success) {
                rtt = (long)reply.roundTripTime;
                buffer = new byte[reply.dataSize];
                Marshal.Copy (reply.data, buffer, 0, reply.dataSize); 
                options = new PingOptions (reply.options);
            } 
            else 
                buffer = new byte[0];
 
        }

                // the main constructor for the icmpsendecho apis
        internal PingReply (Icmp6EchoReply reply, IntPtr dataPtr, int sendSize) { 

            address = new IPAddress(reply.Address.Address,reply.Address.ScopeID); 
            ipStatus = (IPStatus)reply.Status; //the icmpsendecho ip status codes 

            //only copy the data if we succeed w/ the ping operation 
            if (ipStatus == IPStatus.Success) {
                rtt = (long)reply.RoundTripTime;
                buffer = new byte[sendSize];
                Marshal.Copy (IntPtrHelper.Add(dataPtr, 36), buffer, 0, sendSize); 
                //options = new PingOptions (reply.options);
            } 
            else 
                buffer = new byte[0];
 
        }


 
        //translates the relevant icmpsendecho codes to a ipstatus code
        private IPStatus GetIPStatus (IcmpV4Type type, IcmpV4Code code) { 
            switch (type) { 
                case IcmpV4Type.ICMP4_ECHO_REPLY:
                    return IPStatus.Success; 
                case IcmpV4Type.ICMP4_SOURCE_QUENCH:
                    return IPStatus.SourceQuench;
                case IcmpV4Type.ICMP4_PARAM_PROB:
                    return IPStatus.ParameterProblem; 
                case IcmpV4Type.ICMP4_TIME_EXCEEDED:
                   return IPStatus.TtlExpired; 
 
                case IcmpV4Type.ICMP4_DST_UNREACH:
                { 
                    switch (code) {
                        case  IcmpV4Code.ICMP4_UNREACH_NET:
                            return IPStatus.DestinationNetworkUnreachable;
                        case  IcmpV4Code.ICMP4_UNREACH_HOST: 
                            return IPStatus.DestinationHostUnreachable;
                        case  IcmpV4Code.ICMP4_UNREACH_PROTOCOL: 
                            return IPStatus.DestinationProtocolUnreachable; 
                        case  IcmpV4Code.ICMP4_UNREACH_PORT:
                            return IPStatus.DestinationPortUnreachable; 
                        case  IcmpV4Code.ICMP4_UNREACH_FRAG_NEEDED:
                            return IPStatus.PacketTooBig;
                        default:
                            return IPStatus.DestinationUnreachable; 
                    }
                } 
            } 
            return IPStatus.Unknown;
        } 

        //the basic properties
        public IPStatus Status { get { return ipStatus; } }
        public IPAddress Address { get { return address; } } 
        public long RoundtripTime { get { return rtt; } }
        public PingOptions Options { 
            get { 
                if (!ComNetOS.IsWin2K) {
                    throw new PlatformNotSupportedException(SR.GetString(SR.Win2000Required)); 
                }

                return options;
            } 
        }
        public byte[] Buffer { get { return buffer; } } 
    } 
}

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