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