Examples of com.sshtools.j2ssh.io.ByteArrayWriter

com.sshtools.j2ssh.io.ByteArrayWriter
@author $author$ @version $Revision: 1.18 $

     */
    public boolean executeCommand(String command) throws IOException {
        log.info("Requesting command execution");
        log.info("Command is " + command);


        ByteArrayWriter baw = new ByteArrayWriter();
        baw.writeString(command);


        if( connection.sendChannelRequest(this, "exec", true, baw.toByteArray()) ) 
        {
          if (sessionType.equals("Uninitialized")) {
            sessionType = command;
          }

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            log.debug("Width=" + String.valueOf(width));
            log.debug("Height=" + String.valueOf(height));
        }


        // This requests a pseudo terminal
        ByteArrayWriter baw = new ByteArrayWriter();
        baw.writeString(term);
        baw.writeInt(cols);
        baw.writeInt(rows);
        baw.writeInt(width);
        baw.writeInt(height);
        baw.writeString(terminalModes);


        return connection.sendChannelRequest(this, "pty-req", true,
            baw.toByteArray());
    }

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     * @throws IOException
     */
    public boolean startSubsystem(String subsystem) throws IOException {
        log.info("Starting " + subsystem + " subsystem");


        ByteArrayWriter baw = new ByteArrayWriter();
        baw.writeString(subsystem);


        if (connection.sendChannelRequest(this, "subsystem", true,
                    baw.toByteArray())) {
            if (sessionType.equals("Uninitialized")) {
                sessionType = subsystem;
            }


            return true;

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        if (x11ForwardingConfiguration == null) {
            throw new ForwardingConfigurationException(
                "X11 forwarding hasn't been enabled.");
        }


        ByteArrayWriter baw = new ByteArrayWriter();
        baw.writeString(x11ForwardingConfiguration.getAddressToBind());
        baw.writeInt(x11ForwardingConfiguration.getPortToBind());
        x11ForwardingConfiguration.getState().setValue(StartStopState.STARTED);


        if (log.isDebugEnabled()) {
            log.info("X11 forwarding started");
            log.debug("Address to bind: " +

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            throw new ForwardingConfigurationException(
                "The name is not a valid forwarding configuration");
        }


        ForwardingConfiguration config = (ForwardingConfiguration) remoteForwardings.get(name);
        ByteArrayWriter baw = new ByteArrayWriter();
        baw.writeString(config.getAddressToBind());
        baw.writeInt(config.getPortToBind());
        connection.sendGlobalRequest(REMOTE_FORWARD_REQUEST, true,
            baw.toByteArray());
        remoteForwardings.put(name, config);
        config.getState().setValue(StartStopState.STARTED);
        log.info("Remote forwarding configuration '" + name + "' started");


        if (log.isDebugEnabled()) {

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            throw new ForwardingConfigurationException(
                "The remote forwarding configuration does not exist");
        }


        ForwardingConfiguration config = (ForwardingConfiguration) remoteForwardings.get(name);
        ByteArrayWriter baw = new ByteArrayWriter();
        baw.writeString(config.getAddressToBind());
        baw.writeInt(config.getPortToBind());
        connection.sendGlobalRequest(REMOTE_FORWARD_CANCEL_REQUEST, true,
            baw.toByteArray());
        config.getState().setValue(StartStopState.STOPPED);
        log.info("Remote forwarding configuration '" + name + "' stopped");
    }

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     *
     * @return
     */
    public byte[] getEncoded() {
        try {
            ByteArrayWriter baw = new ByteArrayWriter();


            // The private key consists of the public key blob
            baw.write(getPublicKey().getEncoded());


            // And the private data
            baw.writeBigInteger(prvKey.getPrivateExponent());


            return baw.toByteArray();
        } catch (IOException ioe) {
            return null;
        }
    }

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        try {
            Signature sig = Signature.getInstance("SHA1withRSA");
            sig.initSign(prvKey);
            sig.update(data);


            ByteArrayWriter baw = new ByteArrayWriter();
            baw.writeString(getAlgorithmName());
            baw.writeBinaryString(sig.sign());


            return baw.toByteArray();
        } catch (Exception e) {
            return null;
        }
    }

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                    break;
                }
            }


            // This is now the public key blob Base64 encoded
            ByteArrayWriter baw = new ByteArrayWriter();


            while (true) {
                blob += line;
                line = reader.readLine();

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     *
     * @return
     */
    public byte[] getChannelOpenData() {
        try {
            ByteArrayWriter baw = new ByteArrayWriter();
            baw.writeString(hostToConnectOrBind);
            baw.writeInt(portToConnectOrBind);
            baw.writeString(originatingHost);
            baw.writeInt(originatingPort);


            return baw.toByteArray();
        } catch (IOException ioe) {
            return null;
        }
    }

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