/* * xearth.c * kirk johnson * july 1993 * * Copyright (C) 1989, 1990, 1993-1995, 1999 Kirk Lauritz Johnson * * Parts of the source code (as marked) are: * Copyright (C) 1989, 1990, 1991 by Jim Frost * Copyright (C) 1992 by Jamie Zawinski * * Permission to use, copy, modify and freely distribute xearth for * non-commercial and not-for-profit purposes is hereby granted * without fee, provided that both the above copyright notice and this * permission notice appear in all copies and in supporting * documentation. * * Unisys Corporation holds worldwide patent rights on the Lempel Zev * Welch (LZW) compression technique employed in the CompuServe GIF * image file format as well as in other formats. Unisys has made it * clear, however, that it does not require licensing or fees to be * paid for freely distributed, non-commercial applications (such as * xearth) that employ LZW/GIF technology. Those wishing further * information about licensing the LZW patent should contact Unisys * directly at (lzw_info@unisys.com) or by writing to * * Unisys Corporation * Welch Licensing Department * M/S-C1SW19 * P.O. Box 500 * Blue Bell, PA 19424 * * The author makes no representations about the suitability of this * software for any purpose. It is provided "as is" without express or * implied warranty. * * THE AUTHOR DISCLAIMS ALL WARRANTIES WITH REGARD TO THIS SOFTWARE, * INCLUDING ALL IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS, * IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR ANY SPECIAL, INDIRECT * OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM * LOSS OF USE, DATA OR PROFITS, WHETHER IN AN ACTION OF CONTRACT, * NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF OR IN * CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. */