Code:
/ DotNET / DotNET / 8.0 / 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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