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
This commit is contained in:
parent
7c346510aa
commit
fce6f415b3
47
mppc.c
47
mppc.c
@ -1,3 +1,23 @@
|
||||
/* -*- c-basic-offset: 8 -*-
|
||||
rdesktop: A Remote Desktop Protocol client.
|
||||
Protocol services - RDP decompression
|
||||
Copyright (C) Matthew Chapman 1999-2004
|
||||
|
||||
This program is free software; you can redistribute it and/or modify
|
||||
it under the terms of the GNU General Public License as published by
|
||||
the Free Software Foundation; either version 2 of the License, or
|
||||
(at your option) any later version.
|
||||
|
||||
This program 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. See the
|
||||
GNU General Public License for more details.
|
||||
|
||||
You should have received a copy of the GNU General Public License
|
||||
along with this program; if not, write to the Free Software
|
||||
Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
|
||||
*/
|
||||
|
||||
#include <stdio.h>
|
||||
#include <string.h>
|
||||
|
||||
@ -6,24 +26,31 @@
|
||||
/* mppc decompression */
|
||||
/* http://www.faqs.org/rfcs/rfc2118.html */
|
||||
|
||||
/* TODO: research the below statements */
|
||||
/* Contacts: */
|
||||
|
||||
/* there exists one or more patents */
|
||||
/* related to compression algorithms */
|
||||
/* hifn contact mentioned in the faq is */
|
||||
/* Robert Friend rfriend at hifn dot com */
|
||||
|
||||
/* since we are only decompressing I */
|
||||
/* think the end-user is safe. */
|
||||
/* if you have questions regarding MPPC */
|
||||
/* our contact is */
|
||||
/* Guus Dhaeze GDhaeze at hifn dot com */
|
||||
|
||||
/* even if that isn't true, aren't you */
|
||||
/* already paying royalties */
|
||||
/* through the CAL licenses? */
|
||||
/* Licensing: */
|
||||
|
||||
/* decompression is alright as long as we */
|
||||
/* don't compress data */
|
||||
|
||||
/* Algorithm: */
|
||||
|
||||
/* as the rfc states the algorithm seems to */
|
||||
/* be LZ77 with a sliding buffer */
|
||||
/* that is empty at init. */
|
||||
|
||||
/* as of my limited knowledge these patents */
|
||||
/* has expired. */
|
||||
/* the algorithm is called LZS and is */
|
||||
/* patented for another couple of years. */
|
||||
|
||||
/* more information is available in */
|
||||
/* http://www.ietf.org/ietf/IPR/hifn-ipr-draft-friend-tls-lzs-compression.txt */
|
||||
|
||||
|
||||
RDPCOMP g_mppc_dict;
|
||||
|
Loading…
Reference in New Issue
Block a user