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-rw-r--r--OpenSim/Framework/ProxyCodec.cs68
1 files changed, 0 insertions, 68 deletions
diff --git a/OpenSim/Framework/ProxyCodec.cs b/OpenSim/Framework/ProxyCodec.cs
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--- a/OpenSim/Framework/ProxyCodec.cs
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1/*
2 * Copyright (c) Contributors, http://opensimulator.org/
3 * See CONTRIBUTORS.TXT for a full list of copyright holders.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions are met:
7 * * Redistributions of source code must retain the above copyright
8 * notice, this list of conditions and the following disclaimer.
9 * * Redistributions in binary form must reproduce the above copyright
10 * notice, this list of conditions and the following disclaimer in the
11 * documentation and/or other materials provided with the distribution.
12 * * Neither the name of the OpenSimulator Project nor the
13 * names of its contributors may be used to endorse or promote products
14 * derived from this software without specific prior written permission.
15 *
16 * THIS SOFTWARE IS PROVIDED BY THE DEVELOPERS ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
18 * WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
19 * DISCLAIMED. IN NO EVENT SHALL THE CONTRIBUTORS BE LIABLE FOR ANY
20 * DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
21 * (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
22 * LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
23 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
24 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
25 * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
26 */
27
28using System;
29using System.Net;
30
31namespace OpenSim.Framework
32{
33 public sealed class ProxyCodec
34 {
35 public static void EncodeProxyMessage(byte[] bytes, ref int numBytes, EndPoint trueEP)
36 {
37 if (numBytes > 4090) // max UPD size = 4096
38 {
39 throw new Exception("ERROR: No space to encode the proxy EP");
40 }
41
42 ushort port = (ushort) ((IPEndPoint) trueEP).Port;
43 bytes[numBytes++] = (byte) (port % 256);
44 bytes[numBytes++] = (byte) (port / 256);
45
46 foreach (byte b in ((IPEndPoint) trueEP).Address.GetAddressBytes())
47 {
48 bytes[numBytes++] = b;
49 }
50 }
51
52 public static IPEndPoint DecodeProxyMessage(byte[] bytes, ref int numBytes)
53 {
54 // IPv4 Only
55 byte[] addr = new byte[4];
56
57 addr[3] = bytes[--numBytes];
58 addr[2] = bytes[--numBytes];
59 addr[1] = bytes[--numBytes];
60 addr[0] = bytes[--numBytes];
61
62 ushort port = (ushort) (bytes[--numBytes] * 256);
63 port += (ushort) bytes[--numBytes];
64
65 return new IPEndPoint(new IPAddress(addr), (int) port);
66 }
67 }
68}