mcs/class/referencesource/System/net/System/Net/NetworkInformation/SystemTcpConnection.cs

   1
   2
   3 namespace System.Net.NetworkInformation {
   4
   5     using System.Net;
   6     using System.Net.Sockets;
   7     using System.Security.Permissions;
   8     using System;
   9     using System.Runtime.InteropServices;
  10     using System.Collections;
  11     using System.ComponentModel;
  12     using System.Threading;
  13
  14
  15
  16
  17     /// <summary>
  18     /// Represents an active Tcp connection.</summary>
  19     internal class SystemTcpConnectionInformation:TcpConnectionInformation {
  20         IPEndPoint localEndPoint;
  21         IPEndPoint remoteEndPoint;
  22         TcpState state;
  23 #if MONO
  24         public SystemTcpConnectionInformation (IPEndPoint local, IPEndPoint remote, TcpState state)
  25         {
  26             localEndPoint = local;
  27             remoteEndPoint = remote;
  28             this.state = state;
  29         }
  30 #else
  31         internal SystemTcpConnectionInformation(MibTcpRow row) {
  32             state = row.state;
  33
  34             //port is returned in Big-Endian - most significant bit on left
  35             //unfortunately, its done at the word level and not the dword level.
  36
  37             int localPort = row.localPort1<<8|row.localPort2;
  38             int remotePort = ((state == TcpState.Listen)?0:row.remotePort1<<8|row.remotePort2);
  39
  40             localEndPoint = new IPEndPoint(row.localAddr,(int)localPort);
  41             remoteEndPoint= new IPEndPoint(row.remoteAddr,(int)remotePort);
  42         }
  43
  44         // IPV6 version of the Tcp row
  45         internal SystemTcpConnectionInformation(MibTcp6RowOwnerPid row) {
  46             state = row.state;
  47
  48             //port is returned in Big-Endian - most significant bit on left
  49             //unfortunately, its done at the word level and not the dword level.
  50
  51             int localPort = row.localPort1 << 8 | row.localPort2;
  52             int remotePort = ((state == TcpState.Listen) ? 0 : row.remotePort1 << 8 | row.remotePort2);
  53
  54             localEndPoint = new IPEndPoint(new IPAddress(row.localAddr, row.localScopeId), (int)localPort);
  55             remoteEndPoint = new IPEndPoint(new IPAddress(row.remoteAddr, row.remoteScopeId), (int)remotePort);
  56         }
  57 #endif
  58
  59         public override TcpState State{get {return state;}}
  60         public override IPEndPoint LocalEndPoint{get {return localEndPoint;}}
  61         public override IPEndPoint RemoteEndPoint{get {return remoteEndPoint;}}
  62     }
  63  }
  64