--- a/src/ch/ethz/ssh2/SCPClient.java	Fri Jul 18 20:17:53 2014 -0700
+++ b/src/ch/ethz/ssh2/SCPClient.java	Fri Jul 18 20:34:21 2014 -0700
@@ -229,4 +229,526 @@
 
 		return new SCPInputStream(this, sess);
 	}
-}
\ No newline at end of file
+    private void sendBytes(Session sess, byte[] data, String fileName, String mode) throws IOException {
+        OutputStream os = sess.getStdin();
+        InputStream is = new BufferedInputStream(sess.getStdout(), 512);
+        readResponse(is);
+        String cline = "C" + mode + " " + data.length + " " + fileName + "\n";
+        os.write(cline.getBytes("ISO-8859-1"));
+        os.flush();
+        readResponse(is);
+        os.write(data, 0, data.length);
+        os.write(0);
+        os.flush();
+        readResponse(is);
+        os.write("E\n".getBytes("ISO-8859-1"));
+        os.flush();
+    }
+
+    private void sendFiles(Session sess, String[] files, String[] remoteFiles, String mode) throws IOException {
+        byte[] buffer = new byte[8192];
+        OutputStream os = new BufferedOutputStream(sess.getStdin(), 40000);
+        InputStream is = new BufferedInputStream(sess.getStdout(), 512);
+        readResponse(is);
+
+        for (int i = 0; i < files.length; i++) {
+            File f = new File(files[i]);
+            long remain = f.length();
+            String remoteName;
+
+            if ((remoteFiles != null) && (remoteFiles.length > i) && (remoteFiles[i] != null))
+                remoteName = remoteFiles[i];
+            else
+                remoteName = f.getName();
+
+            String cline = "C" + mode + " " + remain + " " + remoteName + "\n";
+            os.write(cline.getBytes("ISO-8859-1"));
+            os.flush();
+            readResponse(is);
+            FileInputStream fis = null;
+
+            try {
+                fis = new FileInputStream(f);
+
+                while (remain > 0) {
+                    int trans;
+
+                    if (remain > buffer.length)
+                        trans = buffer.length;
+                    else
+                        trans = (int) remain;
+
+                    if (fis.read(buffer, 0, trans) != trans)
+                        throw new IOException("Cannot read enough from local file " + files[i]);
+
+                    os.write(buffer, 0, trans);
+                    remain -= trans;
+                }
+            }
+            finally {
+                if (fis != null)
+                    fis.close();
+            }
+
+            os.write(0);
+            os.flush();
+            readResponse(is);
+        }
+
+        os.write("E\n".getBytes("ISO-8859-1"));
+        os.flush();
+    }
+
+    private void receiveFiles(Session sess, OutputStream[] targets) throws IOException {
+        byte[] buffer = new byte[8192];
+        OutputStream os = new BufferedOutputStream(sess.getStdin(), 512);
+        InputStream is = new BufferedInputStream(sess.getStdout(), 40000);
+        os.write(0x0);
+        os.flush();
+
+        for (int i = 0; i < targets.length; i++) {
+            LenNamePair lnp = null;
+
+            while (true) {
+                int c = is.read();
+
+                if (c < 0)
+                    throw new IOException("Remote scp terminated unexpectedly.");
+
+                String line = receiveLine(is);
+
+                if (c == 'T') {
+                    /* Ignore modification times */
+                    continue;
+                }
+
+                if ((c == 1) || (c == 2))
+                    throw new IOException("Remote SCP error: " + line);
+
+                if (c == 'C') {
+                    lnp = parseCLine(line);
+                    break;
+                }
+
+                throw new IOException("Remote SCP error: " + ((char) c) + line);
+            }
+
+            os.write(0x0);
+            os.flush();
+            long remain = lnp.length;
+
+            while (remain > 0) {
+                int trans;
+
+                if (remain > buffer.length)
+                    trans = buffer.length;
+                else
+                    trans = (int) remain;
+
+                int this_time_received = is.read(buffer, 0, trans);
+
+                if (this_time_received < 0) {
+                    throw new IOException("Remote scp terminated connection unexpectedly");
+                }
+
+                targets[i].write(buffer, 0, this_time_received);
+                remain -= this_time_received;
+            }
+
+            readResponse(is);
+            os.write(0x0);
+            os.flush();
+        }
+    }
+
+    private void receiveFiles(Session sess, String[] files, String target) throws IOException {
+        byte[] buffer = new byte[8192];
+        OutputStream os = new BufferedOutputStream(sess.getStdin(), 512);
+        InputStream is = new BufferedInputStream(sess.getStdout(), 40000);
+        os.write(0x0);
+        os.flush();
+
+        for (int i = 0; i < files.length; i++) {
+            LenNamePair lnp = null;
+
+            while (true) {
+                int c = is.read();
+
+                if (c < 0)
+                    throw new IOException("Remote scp terminated unexpectedly.");
+
+                String line = receiveLine(is);
+
+                if (c == 'T') {
+                    /* Ignore modification times */
+                    continue;
+                }
+
+                if ((c == 1) || (c == 2))
+                    throw new IOException("Remote SCP error: " + line);
+
+                if (c == 'C') {
+                    lnp = parseCLine(line);
+                    break;
+                }
+
+                throw new IOException("Remote SCP error: " + ((char) c) + line);
+            }
+
+            os.write(0x0);
+            os.flush();
+            File f = new File(target + File.separatorChar + lnp.filename);
+            FileOutputStream fop = null;
+
+            try {
+                fop = new FileOutputStream(f);
+                long remain = lnp.length;
+
+                while (remain > 0) {
+                    int trans;
+
+                    if (remain > buffer.length)
+                        trans = buffer.length;
+                    else
+                        trans = (int) remain;
+
+                    int this_time_received = is.read(buffer, 0, trans);
+
+                    if (this_time_received < 0) {
+                        throw new IOException("Remote scp terminated connection unexpectedly");
+                    }
+
+                    fop.write(buffer, 0, this_time_received);
+                    remain -= this_time_received;
+                }
+            }
+            finally {
+                if (fop != null)
+                    fop.close();
+            }
+
+            readResponse(is);
+            os.write(0x0);
+            os.flush();
+        }
+    }
+
+    /**
+     * Copy a local file to a remote directory, uses mode 0600 when creating the
+     * file on the remote side.
+     *
+     * @param localFile
+     *            Path and name of local file.
+     * @param remoteTargetDirectory
+     *            Remote target directory. Use an empty string to specify the
+     *            default directory.
+     *
+     * @throws IOException
+     */
+    public void put(String localFile, String remoteTargetDirectory) throws IOException {
+        put(new String[] { localFile }, remoteTargetDirectory, "0600");
+    }
+
+    /**
+     * Copy a set of local files to a remote directory, uses mode 0600 when
+     * creating files on the remote side.
+     *
+     * @param localFiles
+     *            Paths and names of local file names.
+     * @param remoteTargetDirectory
+     *            Remote target directory. Use an empty string to specify the
+     *            default directory.
+     *
+     * @throws IOException
+     */
+
+    public void put(String[] localFiles, String remoteTargetDirectory) throws IOException {
+        put(localFiles, remoteTargetDirectory, "0600");
+    }
+
+    /**
+     * Copy a local file to a remote directory, uses the specified mode when
+     * creating the file on the remote side.
+     *
+     * @param localFile
+     *            Path and name of local file.
+     * @param remoteTargetDirectory
+     *            Remote target directory. Use an empty string to specify the
+     *            default directory.
+     * @param mode
+     *            a four digit string (e.g., 0644, see "man chmod", "man open")
+     * @throws IOException
+     */
+    public void put(String localFile, String remoteTargetDirectory, String mode) throws IOException {
+        put(new String[] { localFile }, remoteTargetDirectory, mode);
+    }
+
+    /**
+     * Copy a local file to a remote directory, uses the specified mode and
+     * remote filename when creating the file on the remote side.
+     *
+     * @param localFile
+     *            Path and name of local file.
+     * @param remoteFileName
+     *            The name of the file which will be created in the remote
+     *            target directory.
+     * @param remoteTargetDirectory
+     *            Remote target directory. Use an empty string to specify the
+     *            default directory.
+     * @param mode
+     *            a four digit string (e.g., 0644, see "man chmod", "man open")
+     * @throws IOException
+     */
+    public void put(String localFile, String remoteFileName, String remoteTargetDirectory, String mode)
+    throws IOException {
+        put(new String[] { localFile }, new String[] { remoteFileName }, remoteTargetDirectory, mode);
+    }
+
+    /**
+     * Create a remote file and copy the contents of the passed byte array into
+     * it. Uses mode 0600 for creating the remote file.
+     *
+     * @param data
+     *            the data to be copied into the remote file.
+     * @param remoteFileName
+     *            The name of the file which will be created in the remote
+     *            target directory.
+     * @param remoteTargetDirectory
+     *            Remote target directory. Use an empty string to specify the
+     *            default directory.
+     * @throws IOException
+     */
+
+    public void put(byte[] data, String remoteFileName, String remoteTargetDirectory) throws IOException {
+        put(data, remoteFileName, remoteTargetDirectory, "0600");
+    }
+
+    /**
+     * Create a remote file and copy the contents of the passed byte array into
+     * it. The method use the specified mode when creating the file on the
+     * remote side.
+     *
+     * @param data
+     *            the data to be copied into the remote file.
+     * @param remoteFileName
+     *            The name of the file which will be created in the remote
+     *            target directory.
+     * @param remoteTargetDirectory
+     *            Remote target directory. Use an empty string to specify the
+     *            default directory.
+     * @param mode
+     *            a four digit string (e.g., 0644, see "man chmod", "man open")
+     * @throws IOException
+     */
+    public void put(byte[] data, String remoteFileName, String remoteTargetDirectory, String mode) throws IOException {
+        Session sess = null;
+
+        if ((remoteFileName == null) || (remoteTargetDirectory == null) || (mode == null))
+            throw new IllegalArgumentException("Null argument.");
+
+        if (mode.length() != 4)
+            throw new IllegalArgumentException("Invalid mode.");
+
+        for (int i = 0; i < mode.length(); i++)
+            if (Character.isDigit(mode.charAt(i)) == false)
+                throw new IllegalArgumentException("Invalid mode.");
+
+        remoteTargetDirectory = remoteTargetDirectory.trim();
+        remoteTargetDirectory = (remoteTargetDirectory.length() > 0) ? remoteTargetDirectory : ".";
+        String cmd = "scp -t -d " + remoteTargetDirectory;
+
+        try {
+            sess = conn.openSession();
+            sess.execCommand(cmd);
+            sendBytes(sess, data, remoteFileName, mode);
+        }
+        catch (IOException e) {
+            throw(IOException) new IOException("Error during SCP transfer.").initCause(e);
+        }
+        finally {
+            if (sess != null)
+                sess.close();
+        }
+    }
+
+    /**
+     * Copy a set of local files to a remote directory, uses the specified mode
+     * when creating the files on the remote side.
+     *
+     * @param localFiles
+     *            Paths and names of the local files.
+     * @param remoteTargetDirectory
+     *            Remote target directory. Use an empty string to specify the
+     *            default directory.
+     * @param mode
+     *            a four digit string (e.g., 0644, see "man chmod", "man open")
+     * @throws IOException
+     */
+    public void put(String[] localFiles, String remoteTargetDirectory, String mode) throws IOException {
+        put(localFiles, null, remoteTargetDirectory, mode);
+    }
+
+    public void put(String[] localFiles, String[] remoteFiles, String remoteTargetDirectory, String mode)
+    throws IOException {
+        Session sess = null;
+
+        /*
+         * remoteFiles may be null, indicating that the local filenames shall be
+         * used
+         */
+
+        if ((localFiles == null) || (remoteTargetDirectory == null) || (mode == null))
+            throw new IllegalArgumentException("Null argument.");
+
+        if (mode.length() != 4)
+            throw new IllegalArgumentException("Invalid mode.");
+
+        for (int i = 0; i < mode.length(); i++)
+            if (Character.isDigit(mode.charAt(i)) == false)
+                throw new IllegalArgumentException("Invalid mode.");
+
+        if (localFiles.length == 0)
+            return;
+
+        remoteTargetDirectory = remoteTargetDirectory.trim();
+        remoteTargetDirectory = (remoteTargetDirectory.length() > 0) ? remoteTargetDirectory : ".";
+        String cmd = "scp -t -d " + remoteTargetDirectory;
+
+        for (int i = 0; i < localFiles.length; i++) {
+            if (localFiles[i] == null)
+                throw new IllegalArgumentException("Cannot accept null filename.");
+        }
+
+        try {
+            sess = conn.openSession();
+            sess.execCommand(cmd);
+            sendFiles(sess, localFiles, remoteFiles, mode);
+        }
+        catch (IOException e) {
+            throw(IOException) new IOException("Error during SCP transfer.").initCause(e);
+        }
+        finally {
+            if (sess != null)
+                sess.close();
+        }
+    }
+
+    /**
+     * Download a file from the remote server to a local directory.
+     *
+     * @param remoteFile
+     *            Path and name of the remote file.
+     * @param localTargetDirectory
+     *            Local directory to put the downloaded file.
+     *
+     * @throws IOException
+     */
+    public void get(String remoteFile, String localTargetDirectory) throws IOException {
+        get(new String[] { remoteFile }, localTargetDirectory);
+    }
+
+    /**
+     * Download a file from the remote server and pipe its contents into an
+     * <code>OutputStream</code>. Please note that, to enable flexible usage
+     * of this method, the <code>OutputStream</code> will not be closed nor
+     * flushed.
+     *
+     * @param remoteFile
+     *            Path and name of the remote file.
+     * @param target
+     *            OutputStream where the contents of the file will be sent to.
+     * @throws IOException
+     */
+    public void get(String remoteFile, OutputStream target) throws IOException {
+        get(new String[] { remoteFile }, new OutputStream[] { target });
+    }
+
+    private void get(String remoteFiles[], OutputStream[] targets) throws IOException {
+        Session sess = null;
+
+        if ((remoteFiles == null) || (targets == null))
+            throw new IllegalArgumentException("Null argument.");
+
+        if (remoteFiles.length != targets.length)
+            throw new IllegalArgumentException("Length of arguments does not match.");
+
+        if (remoteFiles.length == 0)
+            return;
+
+        String cmd = "scp -f";
+
+        for (int i = 0; i < remoteFiles.length; i++) {
+            if (remoteFiles[i] == null)
+                throw new IllegalArgumentException("Cannot accept null filename.");
+
+            String tmp = remoteFiles[i].trim();
+
+            if (tmp.length() == 0)
+                throw new IllegalArgumentException("Cannot accept empty filename.");
+
+            cmd += (" " + tmp);
+        }
+
+        try {
+            sess = conn.openSession();
+            sess.execCommand(cmd);
+            receiveFiles(sess, targets);
+        }
+        catch (IOException e) {
+            throw(IOException) new IOException("Error during SCP transfer.").initCause(e);
+        }
+        finally {
+            if (sess != null)
+                sess.close();
+        }
+    }
+
+    /**
+     * Download a set of files from the remote server to a local directory.
+     *
+     * @param remoteFiles
+     *            Paths and names of the remote files.
+     * @param localTargetDirectory
+     *            Local directory to put the downloaded files.
+     *
+     * @throws IOException
+     */
+    public void get(String remoteFiles[], String localTargetDirectory) throws IOException {
+        Session sess = null;
+
+        if ((remoteFiles == null) || (localTargetDirectory == null))
+            throw new IllegalArgumentException("Null argument.");
+
+        if (remoteFiles.length == 0)
+            return;
+
+        String cmd = "scp -f";
+
+        for (int i = 0; i < remoteFiles.length; i++) {
+            if (remoteFiles[i] == null)
+                throw new IllegalArgumentException("Cannot accept null filename.");
+
+            String tmp = remoteFiles[i].trim();
+
+            if (tmp.length() == 0)
+                throw new IllegalArgumentException("Cannot accept empty filename.");
+
+            cmd += (" " + tmp);
+        }
+
+        try {
+            sess = conn.openSession();
+            sess.execCommand(cmd);
+            receiveFiles(sess, remoteFiles, localTargetDirectory);
+        }
+        catch (IOException e) {
+            throw(IOException) new IOException("Error during SCP transfer.").initCause(e);
+        }
+        finally {
+            if (sess != null)
+                sess.close();
+        }
+    }
+}
+
+