Method start

java/com/jcraft/jsch/UserAuthPassword.java:35–192

(Session session)

  private final int SSH_MSG_USERAUTH_PASSWD_CHANGEREQ=60;

  public boolean start(Session session) throws Exception{
    super.start(session);

    byte[] password=session.password;
    String dest=username+"@"+session.host;
    if(session.port!=22){
      dest+=(":"+session.port);
    }

    try{

    while(true){

      if(session.auth_failures >= session.max_auth_tries){
        return false;
      }

      if(password==null){
	if(userinfo==null){
	  //throw new JSchException("USERAUTH fail");
	  return false;
	}
	if(!userinfo.promptPassword("Password for "+dest)){
	  throw new JSchAuthCancelException("password");
	  //break;
	}

	String _password=userinfo.getPassword();
	if(_password==null){
	  throw new JSchAuthCancelException("password");
	  //break;
	}
        password=Util.str2byte(_password);
      }

      byte[] _username=null;
      _username=Util.str2byte(username);

      // send
      // byte      SSH_MSG_USERAUTH_REQUEST(50)
      // string    user name
      // string    service name ("ssh-connection")
      // string    "password"
      // boolen    FALSE
      // string    plaintext password (ISO-10646 UTF-8)
      packet.reset();
      buf.putByte((byte)SSH_MSG_USERAUTH_REQUEST);
      buf.putString(_username);
      buf.putString(Util.str2byte("ssh-connection"));
      buf.putString(Util.str2byte("password"));
      buf.putByte((byte)0);
      buf.putString(password);
      session.write(packet);

      loop:
      while(true){
	buf=session.read(buf);
        int command=buf.getCommand()&0xff;