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authorMelanie Thielker2008-08-08 12:19:11 +0000
committerMelanie Thielker2008-08-08 12:19:11 +0000
commitb5a9b904dc198b64bcf2ab785a2c9386492a9dd4 (patch)
tree85c7a825865a9213522b0d8e4540a43fa8c6c79e /OpenSim
parent* Removed unused m_bAvailable (diff)
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Sorry, thoughtI had added that :/
Missing file from pervious commit
Diffstat (limited to 'OpenSim')
-rw-r--r--OpenSim/Framework/ProxyCodec.cs77
1 files changed, 77 insertions, 0 deletions
diff --git a/OpenSim/Framework/ProxyCodec.cs b/OpenSim/Framework/ProxyCodec.cs
new file mode 100644
index 0000000..cdba93d
--- /dev/null
+++ b/OpenSim/Framework/ProxyCodec.cs
@@ -0,0 +1,77 @@
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 OpenSim 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.Collections;
30using System.Net;
31using libsecondlife;
32using libsecondlife.Packets;
33
34namespace OpenSim.Framework
35{
36 public sealed class ProxyCodec
37 {
38 public static void EncodeProxyMessage(byte[] bytes, ref int numBytes, EndPoint trueEP)
39 {
40 if (numBytes > 4090) // max UPD size = 4096
41 {
42 throw new Exception("ERROR: No space to encode the proxy EP");
43 }
44
45 ushort port = (ushort) ((IPEndPoint) trueEP).Port;
46 bytes[numBytes++] = (byte) (port % 256);
47 bytes[numBytes++] = (byte) (port / 256);
48
49 foreach (byte b in ((IPEndPoint) trueEP).Address.GetAddressBytes())
50 {
51 bytes[numBytes++] = b;
52 }
53
54 int x = numBytes;
55
56 DecodeProxyMessage(bytes, ref numBytes);
57
58 numBytes = x;
59 }
60
61 public static EndPoint DecodeProxyMessage(byte[] bytes, ref int numBytes)
62 {
63 // IPv4 Only
64 byte[] addr = new byte[4];
65
66 addr[3] = bytes[--numBytes];
67 addr[2] = bytes[--numBytes];
68 addr[1] = bytes[--numBytes];
69 addr[0] = bytes[--numBytes];
70
71 ushort port = (ushort) (bytes[--numBytes] * 256);
72 port += (ushort) bytes[--numBytes];
73
74 return (EndPoint) new IPEndPoint(new IPAddress(addr), (int) port);
75 }
76 }
77}