PacketServiceAccept.java :  » Net » Ganymed-SSH-2 » ch » ethz » ssh2 » packets » Java Open Source

package ch.ethz.ssh2.packets;

import java.io.IOException;

/**
 * PacketServiceAccept.
 * 
 * @author Christian Plattner, plattner@inf.ethz.ch
 * @version $Id: PacketServiceAccept.java,v 1.2 2005/08/24 17:54:09 cplattne Exp $
 */
public class PacketServiceAccept
{
  byte[] payload;

  String serviceName;
  
  public PacketServiceAccept(String serviceName)
  {
    this.serviceName = serviceName;
  }

  public PacketServiceAccept(byte payload[], int off, int len) throws IOException
  {
    this.payload = new byte[len];
    System.arraycopy(payload, off, this.payload, 0, len);

    TypesReader tr = new TypesReader(payload, off, len);

    int packet_type = tr.readByte();

    if (packet_type != Packets.SSH_MSG_SERVICE_ACCEPT)
      throw new IOException("This is not a SSH_MSG_SERVICE_ACCEPT! ("
          + packet_type + ")");

    serviceName = tr.readString();
    
    if (tr.remain() != 0)
      throw new IOException("Padding in SSH_MSG_SERVICE_ACCEPT packet!");
  }

  public byte[] getPayload()
  {
    if (payload == null)
    {
      TypesWriter tw = new TypesWriter();
      tw.writeByte(Packets.SSH_MSG_SERVICE_ACCEPT);
      tw.writeString(serviceName);
      payload = tw.getBytes();
    }
    return payload;
  }
}