2 // System.Net.NetworkInformation.IPAddressCollection
5 // Gonzalo Paniagua Javier (gonzalo@novell.com)
6 // Atsushi Enomoto (atsushi@ximian.com)
8 // Copyright (c) 2006-2007 Novell, Inc. (http://www.novell.com)
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:
18 // The above copyright notice and this permission notice shall be
19 // included in all copies or substantial portions of the Software.
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.
30 using System.Collections;
31 using System.Collections.Generic;
33 using System.Runtime.InteropServices;
35 namespace System.Net.NetworkInformation {
36 public class IPAddressCollection : ICollection<IPAddress>, IEnumerable<IPAddress>, IEnumerable {
37 IList <IPAddress> list = new List<IPAddress> ();
39 protected internal IPAddressCollection ()
43 internal void SetReadOnly ()
46 list = ((List<IPAddress>) list).AsReadOnly ();
49 public virtual void Add (IPAddress address)
52 throw new NotSupportedException ("The collection is read-only.");
56 public virtual void Clear ()
59 throw new NotSupportedException ("The collection is read-only.");
63 public virtual bool Contains (IPAddress address)
65 return list.Contains (address);
68 public virtual void CopyTo (IPAddress [] array, int offset)
70 list.CopyTo (array, offset);
73 public virtual IEnumerator<IPAddress> GetEnumerator ()
75 return ((IEnumerable<IPAddress>)list).GetEnumerator ();
78 public virtual bool Remove (IPAddress address)
81 throw new NotSupportedException ("The collection is read-only.");
82 return list.Remove (address);
85 IEnumerator IEnumerable.GetEnumerator ()
87 return list.GetEnumerator ();
90 public virtual int Count {
91 get { return list.Count; }
94 public virtual bool IsReadOnly {
95 get { return list.IsReadOnly; }
98 public virtual IPAddress this [int index] {
99 get { return list [index]; }
104 class Win32IPAddressCollection : IPAddressCollection
106 public static readonly Win32IPAddressCollection Empty = new Win32IPAddressCollection (IntPtr.Zero);
110 // for static methods
111 Win32IPAddressCollection ()
115 public Win32IPAddressCollection (params IntPtr [] heads)
117 foreach (IntPtr head in heads)
118 AddSubsequentlyString (head);
122 public Win32IPAddressCollection (params Win32_IP_ADDR_STRING [] al)
124 foreach (Win32_IP_ADDR_STRING a in al) {
125 if (String.IsNullOrEmpty (a.IpAddress))
127 Add (IPAddress.Parse (a.IpAddress));
128 AddSubsequentlyString (a.Next);
133 public static Win32IPAddressCollection FromAnycast (IntPtr ptr)
135 Win32IPAddressCollection c = new Win32IPAddressCollection ();
136 Win32_IP_ADAPTER_ANYCAST_ADDRESS a;
137 for (IntPtr p = ptr; p != IntPtr.Zero; p = a.Next) {
138 a = (Win32_IP_ADAPTER_ANYCAST_ADDRESS) Marshal.PtrToStructure (p, typeof (Win32_IP_ADAPTER_ANYCAST_ADDRESS));
139 c.Add (a.Address.GetIPAddress ());
141 c.is_readonly = true;
145 public static Win32IPAddressCollection FromDnsServer (IntPtr ptr)
147 Win32IPAddressCollection c = new Win32IPAddressCollection ();
148 Win32_IP_ADAPTER_DNS_SERVER_ADDRESS a;
149 for (IntPtr p = ptr; p != IntPtr.Zero; p = a.Next) {
150 a = (Win32_IP_ADAPTER_DNS_SERVER_ADDRESS) Marshal.PtrToStructure (p, typeof (Win32_IP_ADAPTER_DNS_SERVER_ADDRESS));
151 // FIXME: It somehow fails here. Looks like there is something wrong.
152 //if (a.Address.Sockaddr == IntPtr.Zero) throw new Exception ("pointer " + p + " a.length " + a.Address.SockaddrLength);
153 c.Add (a.Address.GetIPAddress ());
155 c.is_readonly = true;
159 void AddSubsequentlyString (IntPtr head)
161 Win32_IP_ADDR_STRING a;
162 for (IntPtr p = head; p != IntPtr.Zero; p = a.Next) {
163 a = (Win32_IP_ADDR_STRING) Marshal.PtrToStructure (p, typeof (Win32_IP_ADDR_STRING));
164 Add (IPAddress.Parse (a.IpAddress));
168 public override bool IsReadOnly {
169 get { return is_readonly; }