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Java > Open Source Codes > ch > ethz > ssh2 > packets > PacketNewKeys


1 package ch.ethz.ssh2.packets;
2
3 import java.io.IOException JavaDoc;
4
5 /**
6  * PacketNewKeys.
7  *
8  * @author Christian Plattner, plattner@inf.ethz.ch
9  * @version $Id: PacketNewKeys.java,v 1.2 2005/08/24 17:54:09 cplattne Exp $
10  */
11 public class PacketNewKeys
12 {
13     byte[] payload;
14
15     public PacketNewKeys()
16     {
17     }
18     
19     public PacketNewKeys(byte payload[], int off, int len) throws IOException JavaDoc
20     {
21         this.payload = new byte[len];
22         System.arraycopy(payload, off, this.payload, 0, len);
23
24         TypesReader tr = new TypesReader(payload, off, len);
25
26         int packet_type = tr.readByte();
27
28         if (packet_type != Packets.SSH_MSG_NEWKEYS)
29             throw new IOException JavaDoc("This is not a SSH_MSG_NEWKEYS! ("
30                     + packet_type + ")");
31
32         if (tr.remain() != 0)
33             throw new IOException JavaDoc("Padding in SSH_MSG_NEWKEYS packet!");
34     }
35
36     public byte[] getPayload()
37     {
38         if (payload == null)
39         {
40             TypesWriter tw = new TypesWriter();
41             tw.writeByte(Packets.SSH_MSG_NEWKEYS);
42             payload = tw.getBytes();
43         }
44         return payload;
45     }
46 }
47
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