--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/app/src/main/java/ch/ethz/ssh2/packets/TypesWriter.java	Thu Dec 03 11:23:55 2015 -0800
@@ -0,0 +1,151 @@
+/*
+ * Copyright (c) 2006-2011 Christian Plattner. All rights reserved.
+ * Please refer to the LICENSE.txt for licensing details.
+ */
+package ch.ethz.ssh2.packets;
+
+import java.io.UnsupportedEncodingException;
+import java.math.BigInteger;
+
+import ch.ethz.ssh2.util.StringEncoder;
+
+/**
+ * @author Christian Plattner
+ * @version $Id: TypesWriter.java 160 2014-05-01 14:30:26Z dkocher@sudo.ch $
+ */
+public final class TypesWriter {
+    byte arr[];
+    int pos;
+
+    public TypesWriter() {
+        arr = new byte[256];
+        pos = 0;
+    }
+
+    private void resize(int len) {
+        byte new_arr[] = new byte[len];
+        System.arraycopy(arr, 0, new_arr, 0, arr.length);
+        arr = new_arr;
+    }
+
+    public int length() {
+        return pos;
+    }
+
+    public byte[] getBytes() {
+        byte[] dst = new byte[pos];
+        System.arraycopy(arr, 0, dst, 0, pos);
+        return dst;
+    }
+
+    public void getBytes(byte dst[]) {
+        System.arraycopy(arr, 0, dst, 0, pos);
+    }
+
+    public void writeUINT32(int val, int off) {
+        if ((off + 4) > arr.length) {
+            resize(off + 32);
+        }
+
+        arr[off++] = (byte)(val >> 24);
+        arr[off++] = (byte)(val >> 16);
+        arr[off++] = (byte)(val >> 8);
+        arr[off++] = (byte) val;
+    }
+
+    public void writeUINT32(int val) {
+        writeUINT32(val, pos);
+        pos += 4;
+    }
+
+    public void writeUINT64(long val) {
+        if ((pos + 8) > arr.length) {
+            resize(arr.length + 32);
+        }
+
+        arr[pos++] = (byte)(val >> 56);
+        arr[pos++] = (byte)(val >> 48);
+        arr[pos++] = (byte)(val >> 40);
+        arr[pos++] = (byte)(val >> 32);
+        arr[pos++] = (byte)(val >> 24);
+        arr[pos++] = (byte)(val >> 16);
+        arr[pos++] = (byte)(val >> 8);
+        arr[pos++] = (byte) val;
+    }
+
+    public void writeBoolean(boolean v) {
+        if ((pos + 1) > arr.length) {
+            resize(arr.length + 32);
+        }
+
+        arr[pos++] = v ? (byte) 1 : (byte) 0;
+    }
+
+    public void writeByte(int v, int off) {
+        if ((off + 1) > arr.length) {
+            resize(off + 32);
+        }
+
+        arr[off] = (byte) v;
+    }
+
+    public void writeByte(int v) {
+        writeByte(v, pos);
+        pos++;
+    }
+
+    public void writeMPInt(BigInteger b) {
+        byte raw[] = b.toByteArray();
+
+        if ((raw.length == 1) && (raw[0] == 0)) {
+            writeUINT32(0); /* String with zero bytes of data */
+        }
+        else {
+            writeString(raw, 0, raw.length);
+        }
+    }
+
+    public void writeBytes(byte[] buff) {
+        writeBytes(buff, 0, buff.length);
+    }
+
+    public void writeBytes(byte[] buff, int off, int len) {
+        if ((pos + len) > arr.length) {
+            resize(arr.length + len + 32);
+        }
+
+        System.arraycopy(buff, off, arr, pos, len);
+        pos += len;
+    }
+
+    public void writeString(byte[] buff, int off, int len) {
+        writeUINT32(len);
+        writeBytes(buff, off, len);
+    }
+
+    public void writeString(String v) {
+        byte[] b = StringEncoder.GetBytes(v);
+        writeUINT32(b.length);
+        writeBytes(b, 0, b.length);
+    }
+
+    public void writeString(String v, String charsetName) throws UnsupportedEncodingException {
+        byte[] b = (charsetName == null) ? StringEncoder.GetBytes(v) : v.getBytes(charsetName);
+        writeUINT32(b.length);
+        writeBytes(b, 0, b.length);
+    }
+
+    public void writeNameList(String v[]) {
+        StringBuilder sb = new StringBuilder();
+
+        for (int i = 0; i < v.length; i++) {
+            if (i > 0) {
+                sb.append(',');
+            }
+
+            sb.append(v[i]);
+        }
+
+        writeString(sb.toString());
+    }
+}