patent - LZS. MPPC decompress is OK according to Guus Dhaeze <GDHaeze at hifn dot com>
git-svn-id: svn://svn.code.sf.net/p/rdesktop/code/trunk/rdesktop@688 423420c4-83ab-492f-b58f-81f9feb106b5
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mppc.c
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mppc.c
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/* -*- c-basic-offset: 8 -*-
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rdesktop: A Remote Desktop Protocol client.
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Protocol services - RDP decompression
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Copyright (C) Matthew Chapman 1999-2004
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program; if not, write to the Free Software
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Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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*/
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#include <stdio.h>
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#include <stdio.h>
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#include <string.h>
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#include <string.h>
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/* mppc decompression */
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/* mppc decompression */
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/* http://www.faqs.org/rfcs/rfc2118.html */
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/* http://www.faqs.org/rfcs/rfc2118.html */
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/* TODO: research the below statements */
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/* Contacts: */
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/* there exists one or more patents */
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/* hifn contact mentioned in the faq is */
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/* related to compression algorithms */
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/* Robert Friend rfriend at hifn dot com */
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/* since we are only decompressing I */
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/* if you have questions regarding MPPC */
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/* think the end-user is safe. */
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/* our contact is */
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/* Guus Dhaeze GDhaeze at hifn dot com */
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/* even if that isn't true, aren't you */
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/* Licensing: */
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/* already paying royalties */
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/* through the CAL licenses? */
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/* decompression is alright as long as we */
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/* don't compress data */
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/* Algorithm: */
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/* as the rfc states the algorithm seems to */
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/* as the rfc states the algorithm seems to */
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/* be LZ77 with a sliding buffer */
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/* be LZ77 with a sliding buffer */
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/* that is empty at init. */
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/* that is empty at init. */
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/* as of my limited knowledge these patents */
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/* the algorithm is called LZS and is */
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/* has expired. */
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/* patented for another couple of years. */
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/* more information is available in */
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/* http://www.ietf.org/ietf/IPR/hifn-ipr-draft-friend-tls-lzs-compression.txt */
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RDPCOMP g_mppc_dict;
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RDPCOMP g_mppc_dict;
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