/*
* Licensed to the Apache Software Foundation (ASF) under one
* or more contributor license agreements. See the NOTICE file
* distributed with this work for additional information
* regarding copyright ownership. The ASF licenses this file
* to you under the Apache License, Version 2.0 (the
* "License"); you may not use this file except in compliance
* with the License. You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing,
* software distributed under the License is distributed on an
* "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
* KIND, either express or implied. See the License for the
* specific language governing permissions and limitations
* under the License.
*/
package org.apache.sshd.client.channel;
import org.apache.sshd.common.SshConstants;
import org.apache.sshd.common.util.Buffer;
/**
* Client channel to run a subsystem
*
* @author <a href="mailto:dev@mina.apache.org">Apache MINA SSHD Project</a>
*/
public class ChannelSubsystem extends ChannelSession {
private final String subsystem;
public ChannelSubsystem(String subsystem) {
if (subsystem == null) {
throw new IllegalArgumentException("subsystem must not be null");
}
this.subsystem = subsystem;
}
protected void doOpen() throws Exception {
super.doOpen();
log.info("Send SSH_MSG_CHANNEL_REQUEST exec");
Buffer buffer = session.createBuffer(SshConstants.Message.SSH_MSG_CHANNEL_REQUEST, 0);
buffer.putInt(recipient);
buffer.putString("subsystem");
buffer.putBoolean(false);
buffer.putString(subsystem);
session.writePacket(buffer);
}
}