mcs/class/System/System.Net.Sockets/IPPacketInformation.cs

   1 //
   2 // System.Net.Sockets.IPPacketInformation.cs
   3 //
   4 // Author:
   5 //      Dick Porter (dick@ximian.com)
   6 //
   7 // Copyright (C) 2007 Novell, Inc.  http://www.novell.com
   8 //
   9
  10 //
  11 // Permission is hereby granted, free of charge, to any person obtaining
  12 // a copy of this software and associated documentation files (the
  13 // "Software"), to deal in the Software without restriction, including
  14 // without limitation the rights to use, copy, modify, merge, publish,
  15 // distribute, sublicense, and/or sell copies of the Software, and to
  16 // permit persons to whom the Software is furnished to do so, subject to
  17 // the following conditions:
  18 //
  19 // The above copyright notice and this permission notice shall be
  20 // included in all copies or substantial portions of the Software.
  21 //
  22 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  23 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  24 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  25 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  26 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  27 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  28 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  29 //
  30
  31 using System;
  32 using System.Net;
  33
  34 namespace System.Net.Sockets
  35 {
  36         public struct IPPacketInformation
  37         {
  38                 IPAddress address;
  39                 int iface;
  40
  41                 internal IPPacketInformation (IPAddress address, int iface)
  42                 {
  43                         this.address = address;
  44                         this.iface = iface;
  45                 }
  46
  47                 public IPAddress Address
  48                 {
  49                         get {
  50                                 return(address);
  51                         }
  52                 }
  53
  54                 public int Interface
  55                 {
  56                         get {
  57                                 return(iface);
  58                         }
  59                 }
  60
  61                 public override bool Equals (object comparand)
  62                 {
  63                         if (!(comparand is IPPacketInformation)) {
  64                                 return(false);
  65                         }
  66
  67                         IPPacketInformation packet = (IPPacketInformation)comparand;
  68
  69                         if (packet.iface != iface) {
  70                                 return(false);
  71                         }
  72
  73                         return(packet.address.Equals (address));
  74                 }
  75
  76                 public override int GetHashCode ()
  77                 {
  78                         /* FIXME: see if we can work out the MS algorithm */
  79                         return(address.GetHashCode () + iface);
  80                 }
  81
  82                 public static bool operator== (IPPacketInformation p1,
  83                                                IPPacketInformation p2)
  84                 {
  85                         return(p1.Equals (p2));
  86                 }
  87
  88                 public static bool operator!= (IPPacketInformation p1,
  89                                                IPPacketInformation p2)
  90                 {
  91                         return(!p1.Equals (p2));
  92                 }
  93         }
  94 }
  95