/*
 * Copyright 1989, 1990, 1991, 1992 by John Bradley and
 *                       The University of Pennsylvania
 *
 * Permission to use, copy, and distribute for non-commercial purposes,
 * is hereby granted without fee, providing that the above copyright
 * notice appear in all copies and that both the copyright notice and this
 * permission notice appear in supporting documentation.
 *
 * The software may be modified for your own purposes, but modified versions
 * may not be distributed.
 *
 * This software is provided "as is" without any expressed or implied warranty.
 *
 * The author may be contacted via:
 *    US Mail:   John Bradley
 *               GRASP Lab, Room 301C
 *               3401 Walnut St.
 *               Philadelphia, PA  19104
 *
 *    Phone:     (215) 898-8813
 *    EMail:     bradley@cis.upenn.edu
 */

/*****************************************************************
 * Portions of this code Copyright (C) 1989 by Michael Mauldin.
 * Permission is granted to use this file in whole or in
 * part for any purpose, educational, recreational or commercial,
 * provided that this copyright notice is retained unchanged.
 * This software is available to all free of charge by anonymous
 * FTP and in the UUNET archives.
 *
 *
 * Authors:  Michael Mauldin (mlm@cs.cmu.edu)
 *           David Rowley (mgardi@watdcsu.waterloo.edu)
 *
 * Based on: compress.c - File compression ala IEEE Computer, June 1984.
 *
 *      Spencer W. Thomas       (decvax!harpo!utah-cs!utah-gr!thomas)
 *      Jim McKie               (decvax!mcvax!jim)
 *      Steve Davies            (decvax!vax135!petsd!peora!srd)
 *      Ken Turkowski           (decvax!decwrl!turtlevax!ken)
 *      James A. Woods          (decvax!ihnp4!ames!jaw)
 *      Joe Orost               (decvax!vax135!petsd!joe)
 *****************************************************************/