1 files changed, 164 insertions, 0 deletions
diff --git a/src/main/java/ch/ethz/ssh2/packets/TypesWriter.java b/src/main/java/ch/ethz/ssh2/packets/TypesWriter.java
new file mode 100644
index 0000000..30c2f40
--- /dev/null
+++ b/src/main/java/ch/ethz/ssh2/packets/TypesWriter.java
@@ -0,0 +1,164 @@
+/*
+ * 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;
+
+/**
+ * TypesWriter.
+ * 
+ * @author Christian Plattner
+ * @version 2.50, 03/15/10
+ */
+public 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());
+	}
+}