63 lines
2.4 KiB
C
63 lines
2.4 KiB
C
/*-
|
|
* Copyright (c) 2007 Alexander Motin <mav@freebsd.org>
|
|
* 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 unmodified, 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.
|
|
*
|
|
* $FreeBSD$
|
|
*/
|
|
|
|
/*
|
|
* MPPC decompression library.
|
|
* Version 1.0
|
|
*
|
|
* Note that Hi/Fn (later acquired by Exar Corporation) held US patents
|
|
* on some implementation-critical aspects of MPPC compression.
|
|
* These patents lapsed due to non-payment of fees in 2007 and by 2015
|
|
* expired altogether.
|
|
*/
|
|
|
|
#ifndef _NET_MPPC_H_
|
|
#define _NET_MPPC_H_
|
|
|
|
#define MPPC_MANDATORY_COMPRESS_FLAGS 0
|
|
#define MPPC_MANDATORY_DECOMPRESS_FLAGS 0
|
|
|
|
#define MPPC_SAVE_HISTORY 1
|
|
|
|
#define MPPC_OK 5
|
|
#define MPPC_EXPANDED 8
|
|
#define MPPC_RESTART_HISTORY 16
|
|
#define MPPC_DEST_EXHAUSTED 32
|
|
|
|
extern size_t MPPC_SizeOfCompressionHistory(void);
|
|
extern size_t MPPC_SizeOfDecompressionHistory(void);
|
|
|
|
extern void MPPC_InitCompressionHistory(char *history);
|
|
extern void MPPC_InitDecompressionHistory(char *history);
|
|
|
|
extern int MPPC_Compress(u_char **src, u_char **dst, u_long *srcCnt, u_long *dstCnt, char *history, int flags, int undef);
|
|
extern int MPPC_Decompress(u_char **src, u_char **dst, u_long *srcCnt, u_long *dstCnt, char *history, int flags);
|
|
|
|
#endif
|