Merge pull request #347 from JamesB7/master
[mono.git] / mcs / class / System / System.Net.Sockets / MulticastOption.cs
1 //
2 // System.Net.Sockets.MulticastOption.cs
3 //
4 // Author:
5 //   Andrew Sutton
6 //
7 // (C) Andrew Sutton
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         // <remarks>
37         //   Encapsulates a multicast option
38         // </remarks>
39         public class MulticastOption
40         {
41                 // Don't change the names of these fields without also
42                 // changing socket-io.c in the runtime
43                 private IPAddress group;
44                 private IPAddress local;
45                 int iface_index;
46
47                 public MulticastOption (IPAddress group)
48                         : this (group, IPAddress.Any)
49                 {
50                 }
51
52                 public MulticastOption (IPAddress group, int interfaceIndex)
53                 {
54                         if (group == null)
55                                 throw new ArgumentNullException ("group");
56                         if (interfaceIndex < 0 || interfaceIndex > 0xffffff)
57                                 throw new ArgumentOutOfRangeException ("interfaceIndex");
58
59                         this.group = group;
60                         this.iface_index = interfaceIndex;
61                 }
62
63                 public MulticastOption (IPAddress group, IPAddress mcint)
64                 {
65                         if (group == null)
66                                 throw new ArgumentNullException ("group");
67                         if (mcint == null)
68                                 throw new ArgumentNullException ("mcint");
69
70                         this.group = group;
71                         this.local = mcint;
72                 }
73
74                 public IPAddress Group {
75                         get { return group; }
76                         set { group = value; }
77                 }
78
79                 public IPAddress LocalAddress {
80                         get { return local; }
81                         set {
82                                 local = value;
83                                 iface_index = 0;
84                         }
85                 }
86
87                 public int InterfaceIndex {
88                         get { return iface_index; }
89                         set {
90                                 if (value < 0 || value > 0xffffff)
91                                         throw new ArgumentOutOfRangeException ("value");
92                                 iface_index = value;
93                                 local = null;
94                         }
95                 }
96         }
97 }
98