mcs/class/System/System.Net/DnsEndPoint.cs

   1 //
   2 // System.Net.DnsEndPoint
   3 //
   4 // Authors:
   5 //      Stephane Delcroix  <stephane@delcroix.org>
   6 //
   7 // (c) 2007, 2009 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
  32 using System.Net.Sockets;
  33
  34 namespace System.Net {
  35
  36 #if NET_2_1
  37         sealed
  38 #endif
  39         public class DnsEndPoint : EndPoint {
  40                 string host;
  41                 int port;
  42                 AddressFamily addressFamily = AddressFamily.Unspecified;
  43
  44                 public DnsEndPoint (string host, int port)
  45                 {
  46                         if (host == null)
  47                                 throw new ArgumentNullException ("host");
  48                         if (host == String.Empty)
  49                                 throw new ArgumentException ("host parameter contains an empty string");
  50                         if (port < 0 || port > 0xffff)
  51                                 throw new ArgumentOutOfRangeException ("port is less than 0 or greater than 0xffff");
  52
  53                         this.host = host;
  54                         this.port = port;
  55                 }
  56
  57                 public DnsEndPoint (string host, int port, AddressFamily addressFamily) : this (host, port)
  58                 {
  59                         switch (addressFamily) {
  60                         case AddressFamily.InterNetwork:
  61                         case AddressFamily.InterNetworkV6:
  62                         case AddressFamily.Unspecified:
  63                                 this.addressFamily = addressFamily;
  64                                 break;
  65                         default:
  66                                 // throw for Unknown or any invalid value
  67                                 throw new ArgumentException ("addressFamily");
  68                         }
  69                 }
  70
  71                 public override bool Equals (object comparand)
  72                 {
  73                         DnsEndPoint dep = (comparand as DnsEndPoint);
  74                         return (comparand != null) && Equals (dep);
  75                 }
  76
  77                 private bool Equals (DnsEndPoint other)
  78                 {
  79                         if (port != other.port || addressFamily != other.addressFamily|| host != other.host)
  80                                 return false;
  81                         return true;
  82                 }
  83
  84                 public override int GetHashCode ()
  85                 {
  86                         return port ^ (int)addressFamily ^ host.GetHashCode ();
  87                 }
  88
  89                 public override string ToString ()
  90                 {
  91                         return String.Format ("{0}/{1}:{2}", addressFamily, host, port);
  92                 }
  93
  94                 public override AddressFamily AddressFamily {
  95                         get { return addressFamily; }
  96                 }
  97
  98                 public string Host {
  99                         get { return host; }
 100                 }
 101
 102                 public int Port {
 103                         get { return port; }
 104                 }
 105         }
 106 }
 107