mcs/class/System/System.Net.NetworkInformation/IPAddressInformationCollection.cs

   1 //
   2 // System.Net.NetworkInformation.IPAddressInformationCollection
   3 //
   4 // Authors:
   5 //      Gonzalo Paniagua Javier (gonzalo@novell.com)
   6 //      Atsushi Enomoto (atsushi@ximian.com)
   7 //
   8 // Copyright (c) 2006-2007 Novell, Inc. (http://www.novell.com)
   9 //
  10 // Permission is hereby granted, free of charge, to any person obtaining
  11 // a copy of this software and associated documentation files (the
  12 // "Software"), to deal in the Software without restriction, including
  13 // without limitation the rights to use, copy, modify, merge, publish,
  14 // distribute, sublicense, and/or sell copies of the Software, and to
  15 // permit persons to whom the Software is furnished to do so, subject to
  16 // the following conditions:
  17 //
  18 // The above copyright notice and this permission notice shall be
  19 // included in all copies or substantial portions of the Software.
  20 //
  21 // THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
  22 // EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
  23 // MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
  24 // NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE
  25 // LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION
  26 // OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION
  27 // WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
  28 //
  29 using System;
  30 using System.Collections;
  31 using System.Collections.Generic;
  32 using System.Runtime.InteropServices;
  33
  34 namespace System.Net.NetworkInformation {
  35         public class IPAddressInformationCollection : ICollection<IPAddressInformation>, IEnumerable<IPAddressInformation>, IEnumerable {
  36                 List <IPAddressInformation> list = new List <IPAddressInformation> ();
  37
  38                 internal IPAddressInformationCollection ()
  39                 {
  40                 }
  41
  42                 public virtual void Add (IPAddressInformation address)
  43                 {
  44                         if (IsReadOnly)
  45                                 throw new NotSupportedException ("The collection is read-only.");
  46                         list.Add (address);
  47                 }
  48
  49                 public virtual void Clear ()
  50                 {
  51                         if (IsReadOnly)
  52                                 throw new NotSupportedException ("The collection is read-only.");
  53                         list.Clear ();
  54                 }
  55
  56                 public virtual bool Contains (IPAddressInformation address)
  57                 {
  58                         return list.Contains (address);
  59                 }
  60
  61                 public virtual void CopyTo (IPAddressInformation [] array, int offset)
  62                 {
  63                         list.CopyTo (array, offset);
  64                 }
  65
  66                 public virtual IEnumerator<IPAddressInformation> GetEnumerator ()
  67                 {
  68                         return ((IEnumerable<IPAddressInformation>)list).GetEnumerator ();
  69                 }
  70
  71                 public virtual bool Remove (IPAddressInformation address)
  72                 {
  73                         if (IsReadOnly)
  74                                 throw new NotSupportedException ("The collection is read-only.");
  75                         return list.Remove (address);
  76                 }
  77
  78                 IEnumerator IEnumerable.GetEnumerator ()
  79                 {
  80                         return list.GetEnumerator ();
  81                 }
  82
  83                 public virtual int Count {
  84                         get { return list.Count; }
  85                 }
  86
  87                 public virtual bool IsReadOnly {
  88                         get { return true; }
  89                 }
  90
  91                 public virtual IPAddressInformation this [int index] {
  92                         get { return list [index]; }
  93                 }
  94         }
  95
  96         class IPAddressInformationImplCollection : IPAddressInformationCollection
  97         {
  98                 public static readonly IPAddressInformationImplCollection Empty = new IPAddressInformationImplCollection (true);
  99
 100                 bool is_readonly;
 101
 102                 // for static methods
 103                 IPAddressInformationImplCollection (bool isReadOnly)
 104                 {
 105                         is_readonly = isReadOnly;
 106                 }
 107
 108                 public override bool IsReadOnly {
 109                         get { return is_readonly; }
 110                 }
 111
 112                 public static IPAddressInformationCollection Win32FromAnycast (IntPtr ptr)
 113                 {
 114                         IPAddressInformationImplCollection c = new IPAddressInformationImplCollection (false);
 115                         Win32_IP_ADAPTER_ANYCAST_ADDRESS a;
 116                         for (IntPtr p = ptr; p != IntPtr.Zero; p = a.Next) {
 117                                 a = (Win32_IP_ADAPTER_ANYCAST_ADDRESS) Marshal.PtrToStructure (p, typeof (Win32_IP_ADAPTER_ANYCAST_ADDRESS));
 118                                 c.Add (new IPAddressInformationImpl (
 119                                        a.Address.GetIPAddress (),
 120                                        a.LengthFlags.IsDnsEligible,
 121                                        a.LengthFlags.IsTransient));
 122                         }
 123                         c.is_readonly = true;
 124                         return c;
 125                 }
 126
 127                 public static IPAddressInformationImplCollection LinuxFromAnycast (IList<IPAddress> addresses)
 128                 {
 129                         IPAddressInformationImplCollection c = new IPAddressInformationImplCollection (false);
 130                         foreach (IPAddress address in addresses) {
 131                                 c.Add (new IPAddressInformationImpl (address, false, false));
 132                         }
 133                         c.is_readonly = true;
 134                         return c;
 135                 }
 136         }
 137 }
 138