Move Java source up one level and allow Java viewer to be built as a standalone project (per community request)

git-svn-id: svn://svn.code.sf.net/p/tigervnc/code/trunk@4715 3789f03b-4d11-0410-bbf8-ca57d06f2519

1 files changed, 496 insertions, 0 deletions

diff --git a/java/com/tigervnc/rfb/DesCipher.java b/java/com/tigervnc/rfb/DesCipher.java
new file mode 100644
index 00000000..f7ae9db9
--- /dev/null
+++ b/java/com/tigervnc/rfb/DesCipher.java
@@ -0,0 +1,496 @@
+//
+// This DES class has been extracted from package Acme.Crypto for use in VNC.
+// The bytebit[] array has been reversed so that the most significant bit
+// in each byte of the key is ignored, not the least significant.  Also the
+// unnecessary odd parity code has been removed.
+//
+// These changes are:
+//  Copyright (C) 1999 AT&T Laboratories Cambridge.  All Rights Reserved.
+//
+// This software is distributed in the hope that it will be useful,
+// but WITHOUT ANY WARRANTY; without even the implied warranty of
+// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.
+//
+
+// DesCipher - the DES encryption method
+//
+// The meat of this code is by Dave Zimmerman <dzimm@widget.com>, and is:
+//
+// Copyright (c) 1996 Widget Workshop, Inc. All Rights Reserved.
+//
+// Permission to use, copy, modify, and distribute this software
+// and its documentation for NON-COMMERCIAL or COMMERCIAL purposes and
+// without fee is hereby granted, provided that this copyright notice is kept 
+// intact. 
+// 
+// WIDGET WORKSHOP MAKES NO REPRESENTATIONS OR WARRANTIES ABOUT THE SUITABILITY
+// OF THE SOFTWARE, EITHER EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED
+// TO THE IMPLIED WARRANTIES OF MERCHANTABILITY, FITNESS FOR A
+// PARTICULAR PURPOSE, OR NON-INFRINGEMENT. WIDGET WORKSHOP SHALL NOT BE LIABLE
+// FOR ANY DAMAGES SUFFERED BY LICENSEE AS A RESULT OF USING, MODIFYING OR
+// DISTRIBUTING THIS SOFTWARE OR ITS DERIVATIVES.
+// 
+// THIS SOFTWARE IS NOT DESIGNED OR INTENDED FOR USE OR RESALE AS ON-LINE
+// CONTROL EQUIPMENT IN HAZARDOUS ENVIRONMENTS REQUIRING FAIL-SAFE
+// PERFORMANCE, SUCH AS IN THE OPERATION OF NUCLEAR FACILITIES, AIRCRAFT
+// NAVIGATION OR COMMUNICATION SYSTEMS, AIR TRAFFIC CONTROL, DIRECT LIFE
+// SUPPORT MACHINES, OR WEAPONS SYSTEMS, IN WHICH THE FAILURE OF THE
+// SOFTWARE COULD LEAD DIRECTLY TO DEATH, PERSONAL INJURY, OR SEVERE
+// PHYSICAL OR ENVIRONMENTAL DAMAGE ("HIGH RISK ACTIVITIES").  WIDGET WORKSHOP
+// SPECIFICALLY DISCLAIMS ANY EXPRESS OR IMPLIED WARRANTY OF FITNESS FOR
+// HIGH RISK ACTIVITIES.
+//
+//
+// The rest is:
+//
+// Copyright (C) 1996 by Jef Poskanzer <jef@acme.com>.  All rights reserved.
+//
+// Redistribution and use in source and binary forms, with or without
+// modification, are permitted provided that the following conditions
+// are met:
+// 1. Redistributions of source code must retain the above copyright
+//    notice, this list of conditions and the following disclaimer.
+// 2. Redistributions in binary form must reproduce the above copyright
+//    notice, this list of conditions and the following disclaimer in the
+//    documentation and/or other materials provided with the distribution.
+//
+// THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
+// ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+// IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+// ARE DISCLAIMED.  IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
+// FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
+// DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
+// OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
+// HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
+// LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
+// OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
+// SUCH DAMAGE.
+//
+// Visit the ACME Labs Java page for up-to-date versions of this and other
+// fine Java utilities: http://www.acme.com/java/
+
+
+/// The DES encryption method.
+// <P>
+// This is surprisingly fast, for pure Java.  On a SPARC 20, wrapped
+// in Acme.Crypto.EncryptedOutputStream or Acme.Crypto.EncryptedInputStream,
+// it does around 7000 bytes/second.
+// <P>
+// Most of this code is by Dave Zimmerman <dzimm@widget.com>, and is
+// Copyright (c) 1996 Widget Workshop, Inc.  See the source file for details.
+// <P>
+// <A HREF="/resources/classes/Acme/Crypto/DesCipher.java">Fetch the software.</A><BR>
+// <A HREF="/resources/classes/Acme.tar.Z">Fetch the entire Acme package.</A>
+// <P>
+// @see Des3Cipher
+// @see EncryptedOutputStream
+// @see EncryptedInputStream
+
+package com.tigervnc.rfb;
+
+public class DesCipher
+    {
+
+    // Constructor, byte-array key.
+    public DesCipher( byte[] key )
+	{
+	setKey( key );
+	}
+
+    // Key routines.
+
+    private int[] encryptKeys = new int[32];
+    private int[] decryptKeys = new int[32];
+
+    /// Set the key.
+    public void setKey( byte[] key )
+	{
+	deskey( key, true, encryptKeys );
+	deskey( key, false, decryptKeys );
+	}
+
+    // Turn an 8-byte key into internal keys.
+    private void deskey( byte[] keyBlock, boolean encrypting, int[] KnL )
+	{
+	int i, j, l, m, n;
+	int[] pc1m = new int[56];
+	int[] pcr = new int[56];
+	int[] kn = new int[32];
+
+	for ( j = 0; j < 56; ++j )
+	    {
+	    l = pc1[j];
+	    m = l & 07;
+	    pc1m[j] = ( (keyBlock[l >>> 3] & bytebit[m]) != 0 )? 1: 0;
+	    }
+
+	for ( i = 0; i < 16; ++i )
+	    {
+	    if ( encrypting )
+		m = i << 1;
+	    else
+		m = (15-i) << 1;
+	    n = m+1;
+	    kn[m] = kn[n] = 0;
+	    for ( j = 0; j < 28; ++j )
+		{
+		l = j+totrot[i];
+		if ( l < 28 )
+		    pcr[j] = pc1m[l];
+		else
+		    pcr[j] = pc1m[l-28];
+		}
+	    for ( j=28; j < 56; ++j )
+		{
+		l = j+totrot[i];
+		if ( l < 56 )
+		    pcr[j] = pc1m[l];
+		else
+		    pcr[j] = pc1m[l-28];
+		}
+	    for ( j = 0; j < 24; ++j )
+		{
+		if ( pcr[pc2[j]] != 0 )
+		    kn[m] |= bigbyte[j];
+		if ( pcr[pc2[j+24]] != 0 )
+		    kn[n] |= bigbyte[j];
+		}
+	    }
+	cookey( kn, KnL );
+	}
+
+    private void cookey( int[] raw, int KnL[] )
+	{
+	int raw0, raw1;
+	int rawi, KnLi;
+	int i;
+
+	for ( i = 0, rawi = 0, KnLi = 0; i < 16; ++i )
+	    {
+	    raw0 = raw[rawi++];
+	    raw1 = raw[rawi++];
+	    KnL[KnLi]  = (raw0 & 0x00fc0000) <<   6;
+	    KnL[KnLi] |= (raw0 & 0x00000fc0) <<  10;
+	    KnL[KnLi] |= (raw1 & 0x00fc0000) >>> 10;
+	    KnL[KnLi] |= (raw1 & 0x00000fc0) >>>  6;
+	    ++KnLi;
+	    KnL[KnLi]  = (raw0 & 0x0003f000) <<  12;
+	    KnL[KnLi] |= (raw0 & 0x0000003f) <<  16;
+	    KnL[KnLi] |= (raw1 & 0x0003f000) >>>  4;
+	    KnL[KnLi] |= (raw1 & 0x0000003f);
+	    ++KnLi;
+	    }
+	}
+
+
+    // Block encryption routines.
+
+    private int[] tempInts = new int[2];
+
+    /// Encrypt a block of eight bytes.
+    public void encrypt( byte[] clearText, int clearOff, byte[] cipherText, int cipherOff )
+	{
+	squashBytesToInts( clearText, clearOff, tempInts, 0, 2 );
+	des( tempInts, tempInts, encryptKeys );
+	spreadIntsToBytes( tempInts, 0, cipherText, cipherOff, 2 );
+	}
+
+    /// Decrypt a block of eight bytes.
+    public void decrypt( byte[] cipherText, int cipherOff, byte[] clearText, int clearOff )
+	{
+	squashBytesToInts( cipherText, cipherOff, tempInts, 0, 2 );
+	des( tempInts, tempInts, decryptKeys );
+	spreadIntsToBytes( tempInts, 0, clearText, clearOff, 2 );
+	}
+
+    // The DES function.
+    private void des( int[] inInts, int[] outInts, int[] keys )
+	{
+	int fval, work, right, leftt;
+	int round;
+	int keysi = 0;
+
+	leftt = inInts[0];
+	right = inInts[1];
+
+	work   = ((leftt >>>  4) ^ right) & 0x0f0f0f0f;
+	right ^= work;
+	leftt ^= (work << 4);
+
+	work   = ((leftt >>> 16) ^ right) & 0x0000ffff;
+	right ^= work;
+	leftt ^= (work << 16);
+
+	work   = ((right >>>  2) ^ leftt) & 0x33333333;
+	leftt ^= work;
+	right ^= (work << 2);
+
+	work   = ((right >>>  8) ^ leftt) & 0x00ff00ff;
+	leftt ^= work;
+	right ^= (work << 8);
+	right  = (right << 1) | ((right >>> 31) & 1);
+
+	work   = (leftt ^ right) & 0xaaaaaaaa;
+	leftt ^= work;
+	right ^= work;
+	leftt  = (leftt << 1) | ((leftt >>> 31) & 1);
+
+	for ( round = 0; round < 8; ++round )
+	    {
+	    work   = (right << 28) | (right >>> 4);
+	    work  ^= keys[keysi++];
+	    fval   = SP7[ work	       & 0x0000003f ];
+	    fval  |= SP5[(work >>>  8) & 0x0000003f ];
+	    fval  |= SP3[(work >>> 16) & 0x0000003f ];
+	    fval  |= SP1[(work >>> 24) & 0x0000003f ];
+	    work   = right ^ keys[keysi++];
+	    fval  |= SP8[ work         & 0x0000003f ];
+	    fval  |= SP6[(work >>>  8) & 0x0000003f ];
+	    fval  |= SP4[(work >>> 16) & 0x0000003f ];
+	    fval  |= SP2[(work >>> 24) & 0x0000003f ];
+	    leftt ^= fval;
+	    work   = (leftt << 28) | (leftt >>> 4);
+	    work  ^= keys[keysi++];
+	    fval   = SP7[ work	       & 0x0000003f ];
+	    fval  |= SP5[(work >>>  8) & 0x0000003f ];
+	    fval  |= SP3[(work >>> 16) & 0x0000003f ];
+	    fval  |= SP1[(work >>> 24) & 0x0000003f ];
+	    work   = leftt ^ keys[keysi++];
+	    fval  |= SP8[ work	       & 0x0000003f ];
+	    fval  |= SP6[(work >>>  8) & 0x0000003f ];
+	    fval  |= SP4[(work >>> 16) & 0x0000003f ];
+	    fval  |= SP2[(work >>> 24) & 0x0000003f ];
+	    right ^= fval;
+	    }
+
+	right  = (right << 31) | (right >>> 1);
+	work   = (leftt ^ right) & 0xaaaaaaaa;
+	leftt ^= work;
+	right ^= work;
+	leftt  = (leftt << 31) | (leftt >>> 1);
+	work   = ((leftt >>>  8) ^ right) & 0x00ff00ff;
+	right ^= work;
+	leftt ^= (work << 8);
+	work   = ((leftt >>>  2) ^ right) & 0x33333333;
+	right ^= work;
+	leftt ^= (work << 2);
+	work   = ((right >>> 16) ^ leftt) & 0x0000ffff;
+	leftt ^= work;
+	right ^= (work << 16);
+	work   = ((right >>>  4) ^ leftt) & 0x0f0f0f0f;
+	leftt ^= work;
+	right ^= (work << 4);
+	outInts[0] = right;
+	outInts[1] = leftt;
+	}
+
+
+    // Tables, permutations, S-boxes, etc.
+
+    private static byte[] bytebit = {
+	(byte)0x01, (byte)0x02, (byte)0x04, (byte)0x08,
+	(byte)0x10, (byte)0x20, (byte)0x40, (byte)0x80
+	};
+    private static int[] bigbyte = {
+	0x800000, 0x400000, 0x200000, 0x100000,
+	0x080000, 0x040000, 0x020000, 0x010000,
+	0x008000, 0x004000, 0x002000, 0x001000,
+	0x000800, 0x000400, 0x000200, 0x000100,
+	0x000080, 0x000040, 0x000020, 0x000010,
+	0x000008, 0x000004, 0x000002, 0x000001
+	};
+    private static byte[] pc1 = {
+         (byte)56, (byte)48, (byte)40, (byte)32, (byte)24, (byte)16, (byte) 8,
+      (byte) 0, (byte)57, (byte)49, (byte)41, (byte)33, (byte)25, (byte)17,
+	 (byte) 9, (byte) 1, (byte)58, (byte)50, (byte)42, (byte)34, (byte)26,
+      (byte)18, (byte)10, (byte) 2, (byte)59, (byte)51, (byte)43, (byte)35,
+	 (byte)62, (byte)54, (byte)46, (byte)38, (byte)30, (byte)22, (byte)14,
+      (byte) 6, (byte)61, (byte)53, (byte)45, (byte)37, (byte)29, (byte)21,
+	 (byte)13, (byte) 5, (byte)60, (byte)52, (byte)44, (byte)36, (byte)28,
+      (byte)20, (byte)12, (byte) 4, (byte)27, (byte)19, (byte)11, (byte)3
+	};
+    private static int[] totrot = {
+        1, 2, 4, 6, 8, 10, 12, 14, 15, 17, 19, 21, 23, 25, 27, 28
+	};
+
+    private static byte[] pc2 = {
+	(byte)13, (byte)16, (byte)10, (byte)23, (byte) 0, (byte) 4,
+	          (byte) 2, (byte)27, (byte)14, (byte) 5, (byte)20, (byte) 9,
+	(byte)22, (byte)18, (byte)11, (byte)3 , (byte)25, (byte) 7,
+	          (byte)15, (byte) 6, (byte)26, (byte)19, (byte)12, (byte) 1,
+	(byte)40, (byte)51, (byte)30, (byte)36, (byte)46, (byte)54,
+	          (byte)29, (byte)39, (byte)50, (byte)44, (byte)32, (byte)47,
+	(byte)43, (byte)48, (byte)38, (byte)55, (byte)33, (byte)52,
+	          (byte)45, (byte)41, (byte)49, (byte)35, (byte)28, (byte)31,
+	};
+
+    private static int[] SP1 = {
+        0x01010400, 0x00000000, 0x00010000, 0x01010404,
+	0x01010004, 0x00010404, 0x00000004, 0x00010000,
+	0x00000400, 0x01010400, 0x01010404, 0x00000400,
+	0x01000404, 0x01010004, 0x01000000, 0x00000004,
+	0x00000404, 0x01000400, 0x01000400, 0x00010400,
+	0x00010400, 0x01010000, 0x01010000, 0x01000404,
+	0x00010004, 0x01000004, 0x01000004, 0x00010004,
+	0x00000000, 0x00000404, 0x00010404, 0x01000000,
+	0x00010000, 0x01010404, 0x00000004, 0x01010000,
+	0x01010400, 0x01000000, 0x01000000, 0x00000400,
+	0x01010004, 0x00010000, 0x00010400, 0x01000004,
+	0x00000400, 0x00000004, 0x01000404, 0x00010404,
+	0x01010404, 0x00010004, 0x01010000, 0x01000404,
+	0x01000004, 0x00000404, 0x00010404, 0x01010400,
+	0x00000404, 0x01000400, 0x01000400, 0x00000000,
+	0x00010004, 0x00010400, 0x00000000, 0x01010004
+	};
+    private static int[] SP2 = {
+	0x80108020, 0x80008000, 0x00008000, 0x00108020,
+	0x00100000, 0x00000020, 0x80100020, 0x80008020,
+	0x80000020, 0x80108020, 0x80108000, 0x80000000,
+	0x80008000, 0x00100000, 0x00000020, 0x80100020,
+	0x00108000, 0x00100020, 0x80008020, 0x00000000,
+	0x80000000, 0x00008000, 0x00108020, 0x80100000,
+	0x00100020, 0x80000020, 0x00000000, 0x00108000,
+	0x00008020, 0x80108000, 0x80100000, 0x00008020,
+	0x00000000, 0x00108020, 0x80100020, 0x00100000,
+	0x80008020, 0x80100000, 0x80108000, 0x00008000,
+	0x80100000, 0x80008000, 0x00000020, 0x80108020,
+	0x00108020, 0x00000020, 0x00008000, 0x80000000,
+	0x00008020, 0x80108000, 0x00100000, 0x80000020,
+	0x00100020, 0x80008020, 0x80000020, 0x00100020,
+	0x00108000, 0x00000000, 0x80008000, 0x00008020,
+	0x80000000, 0x80100020, 0x80108020, 0x00108000
+	};
+    private static int[] SP3 = {
+	0x00000208, 0x08020200, 0x00000000, 0x08020008,
+	0x08000200, 0x00000000, 0x00020208, 0x08000200,
+	0x00020008, 0x08000008, 0x08000008, 0x00020000,
+	0x08020208, 0x00020008, 0x08020000, 0x00000208,
+	0x08000000, 0x00000008, 0x08020200, 0x00000200,
+	0x00020200, 0x08020000, 0x08020008, 0x00020208,
+	0x08000208, 0x00020200, 0x00020000, 0x08000208,
+	0x00000008, 0x08020208, 0x00000200, 0x08000000,
+	0x08020200, 0x08000000, 0x00020008, 0x00000208,
+	0x00020000, 0x08020200, 0x08000200, 0x00000000,
+	0x00000200, 0x00020008, 0x08020208, 0x08000200,
+	0x08000008, 0x00000200, 0x00000000, 0x08020008,
+	0x08000208, 0x00020000, 0x08000000, 0x08020208,
+	0x00000008, 0x00020208, 0x00020200, 0x08000008,
+	0x08020000, 0x08000208, 0x00000208, 0x08020000,
+	0x00020208, 0x00000008, 0x08020008, 0x00020200
+	};
+    private static int[] SP4 = {
+	0x00802001, 0x00002081, 0x00002081, 0x00000080,
+	0x00802080, 0x00800081, 0x00800001, 0x00002001,
+	0x00000000, 0x00802000, 0x00802000, 0x00802081,
+	0x00000081, 0x00000000, 0x00800080, 0x00800001,
+	0x00000001, 0x00002000, 0x00800000, 0x00802001,
+	0x00000080, 0x00800000, 0x00002001, 0x00002080,
+	0x00800081, 0x00000001, 0x00002080, 0x00800080,
+	0x00002000, 0x00802080, 0x00802081, 0x00000081,
+	0x00800080, 0x00800001, 0x00802000, 0x00802081,
+	0x00000081, 0x00000000, 0x00000000, 0x00802000,
+	0x00002080, 0x00800080, 0x00800081, 0x00000001,
+	0x00802001, 0x00002081, 0x00002081, 0x00000080,
+	0x00802081, 0x00000081, 0x00000001, 0x00002000,
+	0x00800001, 0x00002001, 0x00802080, 0x00800081,
+	0x00002001, 0x00002080, 0x00800000, 0x00802001,
+	0x00000080, 0x00800000, 0x00002000, 0x00802080
+	};
+    private static int[] SP5 = {
+	0x00000100, 0x02080100, 0x02080000, 0x42000100,
+	0x00080000, 0x00000100, 0x40000000, 0x02080000,
+	0x40080100, 0x00080000, 0x02000100, 0x40080100,
+	0x42000100, 0x42080000, 0x00080100, 0x40000000,
+	0x02000000, 0x40080000, 0x40080000, 0x00000000,
+	0x40000100, 0x42080100, 0x42080100, 0x02000100,
+	0x42080000, 0x40000100, 0x00000000, 0x42000000,
+	0x02080100, 0x02000000, 0x42000000, 0x00080100,
+	0x00080000, 0x42000100, 0x00000100, 0x02000000,
+	0x40000000, 0x02080000, 0x42000100, 0x40080100,
+	0x02000100, 0x40000000, 0x42080000, 0x02080100,
+	0x40080100, 0x00000100, 0x02000000, 0x42080000,
+	0x42080100, 0x00080100, 0x42000000, 0x42080100,
+	0x02080000, 0x00000000, 0x40080000, 0x42000000,
+	0x00080100, 0x02000100, 0x40000100, 0x00080000,
+	0x00000000, 0x40080000, 0x02080100, 0x40000100
+	};
+    private static int[] SP6 = {
+	0x20000010, 0x20400000, 0x00004000, 0x20404010,
+	0x20400000, 0x00000010, 0x20404010, 0x00400000,
+	0x20004000, 0x00404010, 0x00400000, 0x20000010,
+	0x00400010, 0x20004000, 0x20000000, 0x00004010,
+	0x00000000, 0x00400010, 0x20004010, 0x00004000,
+	0x00404000, 0x20004010, 0x00000010, 0x20400010,
+	0x20400010, 0x00000000, 0x00404010, 0x20404000,
+	0x00004010, 0x00404000, 0x20404000, 0x20000000,
+	0x20004000, 0x00000010, 0x20400010, 0x00404000,
+	0x20404010, 0x00400000, 0x00004010, 0x20000010,
+	0x00400000, 0x20004000, 0x20000000, 0x00004010,
+	0x20000010, 0x20404010, 0x00404000, 0x20400000,
+	0x00404010, 0x20404000, 0x00000000, 0x20400010,
+	0x00000010, 0x00004000, 0x20400000, 0x00404010,
+	0x00004000, 0x00400010, 0x20004010, 0x00000000,
+	0x20404000, 0x20000000, 0x00400010, 0x20004010
+	};
+    private static int[] SP7 = {
+	0x00200000, 0x04200002, 0x04000802, 0x00000000,
+	0x00000800, 0x04000802, 0x00200802, 0x04200800,
+	0x04200802, 0x00200000, 0x00000000, 0x04000002,
+	0x00000002, 0x04000000, 0x04200002, 0x00000802,
+	0x04000800, 0x00200802, 0x00200002, 0x04000800,
+	0x04000002, 0x04200000, 0x04200800, 0x00200002,
+	0x04200000, 0x00000800, 0x00000802, 0x04200802,
+	0x00200800, 0x00000002, 0x04000000, 0x00200800,
+	0x04000000, 0x00200800, 0x00200000, 0x04000802,
+	0x04000802, 0x04200002, 0x04200002, 0x00000002,
+	0x00200002, 0x04000000, 0x04000800, 0x00200000,
+	0x04200800, 0x00000802, 0x00200802, 0x04200800,
+	0x00000802, 0x04000002, 0x04200802, 0x04200000,
+	0x00200800, 0x00000000, 0x00000002, 0x04200802,
+	0x00000000, 0x00200802, 0x04200000, 0x00000800,
+	0x04000002, 0x04000800, 0x00000800, 0x00200002
+	};
+    private static int[] SP8 = {
+	0x10001040, 0x00001000, 0x00040000, 0x10041040,
+	0x10000000, 0x10001040, 0x00000040, 0x10000000,
+	0x00040040, 0x10040000, 0x10041040, 0x00041000,
+	0x10041000, 0x00041040, 0x00001000, 0x00000040,
+	0x10040000, 0x10000040, 0x10001000, 0x00001040,
+	0x00041000, 0x00040040, 0x10040040, 0x10041000,
+	0x00001040, 0x00000000, 0x00000000, 0x10040040,
+	0x10000040, 0x10001000, 0x00041040, 0x00040000,
+	0x00041040, 0x00040000, 0x10041000, 0x00001000,
+	0x00000040, 0x10040040, 0x00001000, 0x00041040,
+	0x10001000, 0x00000040, 0x10000040, 0x10040000,
+	0x10040040, 0x10000000, 0x00040000, 0x10001040,
+	0x00000000, 0x10041040, 0x00040040, 0x10000040,
+	0x10040000, 0x10001000, 0x10001040, 0x00000000,
+	0x10041040, 0x00041000, 0x00041000, 0x00001040,
+	0x00001040, 0x00040040, 0x10000000, 0x10041000
+	};
+
+    // Routines taken from other parts of the Acme utilities.
+
+    /// Squash bytes down to ints.
+    public static void squashBytesToInts( byte[] inBytes, int inOff, int[] outInts, int outOff, int intLen )
+        {
+	for ( int i = 0; i < intLen; ++i )
+	    outInts[outOff + i] = 
+		( ( inBytes[inOff + i * 4    ] & 0xff ) << 24 ) |
+		( ( inBytes[inOff + i * 4 + 1] & 0xff ) << 16 ) |
+		( ( inBytes[inOff + i * 4 + 2] & 0xff ) <<  8 ) |
+		  ( inBytes[inOff + i * 4 + 3] & 0xff );
+        }
+
+    /// Spread ints into bytes.
+    public static void spreadIntsToBytes( int[] inInts, int inOff, byte[] outBytes, int outOff, int intLen )
+        {
+	for ( int i = 0; i < intLen; ++i )
+	    {
+	    outBytes[outOff + i * 4    ] = (byte) ( inInts[inOff + i] >>> 24 );
+	    outBytes[outOff + i * 4 + 1] = (byte) ( inInts[inOff + i] >>> 16 );
+	    outBytes[outOff + i * 4 + 2] = (byte) ( inInts[inOff + i] >>>  8 );
+	    outBytes[outOff + i * 4 + 3] = (byte)   inInts[inOff + i];
+	    }
+        }
+    }