PacketChannelOpenFailure.java revision 48ded2421114c4c87ef3f8005c9f793a5d077cbd 
1/*
2 * Copyright (c) 2006-2011 Christian Plattner. All rights reserved.
3 * Please refer to the LICENSE.txt for licensing details.
4 */
5package ch.ethz.ssh2.packets;
6
7import java.io.IOException;
8
9/**
10 * PacketChannelOpenFailure.
11 *
12 * @author Christian Plattner
13 * @version 2.50, 03/15/10
14 */
15public class PacketChannelOpenFailure
16{
17	byte[] payload;
18
19	public int recipientChannelID;
20	public int reasonCode;
21	public String description;
22	public String languageTag;
23
24	public PacketChannelOpenFailure(int recipientChannelID, int reasonCode, String description,
25			String languageTag)
26	{
27		this.recipientChannelID = recipientChannelID;
28		this.reasonCode = reasonCode;
29		this.description = description;
30		this.languageTag = languageTag;
31	}
32
33	public PacketChannelOpenFailure(byte payload[], int off, int len) throws IOException
34	{
35		this.payload = new byte[len];
36		System.arraycopy(payload, off, this.payload, 0, len);
37
38		TypesReader tr = new TypesReader(payload, off, len);
39
40		int packet_type = tr.readByte();
41
42		if (packet_type != Packets.SSH_MSG_CHANNEL_OPEN_FAILURE)
43			throw new IOException(
44					"This is not a SSH_MSG_CHANNEL_OPEN_FAILURE! ("
45							+ packet_type + ")");
46
47		recipientChannelID = tr.readUINT32();
48		reasonCode = tr.readUINT32();
49		description = tr.readString();
50		languageTag = tr.readString();
51
52		if (tr.remain() != 0)
53			throw new IOException("Padding in SSH_MSG_CHANNEL_OPEN_FAILURE packet!");
54	}
55
56	public byte[] getPayload()
57	{
58		if (payload == null)
59		{
60			TypesWriter tw = new TypesWriter();
61			tw.writeByte(Packets.SSH_MSG_CHANNEL_OPEN_FAILURE);
62			tw.writeUINT32(recipientChannelID);
63			tw.writeUINT32(reasonCode);
64			tw.writeString(description);
65			tw.writeString(languageTag);
66			payload = tw.getBytes();
67		}
68		return payload;
69	}
70}
71