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/* $FreeBSD: release/9.1.0/sys/opencrypto/deflate.h 199895 2009-11-28 21:08:19Z bz $ */
/* $OpenBSD: deflate.h,v 1.3 2002/03/14 01:26:51 millert Exp $ */
/*-
* Copyright (c) 2001 Jean-Jacques Bernard-Gundol (jj@wabbitt.org)
*
* 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, 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.
* 3. The name of the author may not be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* THIS SOFTWARE IS PROVIDED BY THE AUTHOR ``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 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.
*/
/*
* Definition for the wrapper around the deflate compression
* algorithm used in /sys/crypto
*/
#ifndef _CRYPTO_DEFLATE_H_
#define _CRYPTO_DEFLATE_H_
#include <net/zlib.h>
#define Z_METHOD 8
#define Z_MEMLEVEL 8
#define MINCOMP 2 /* won't be used, but must be defined */
#define ZBUF 10
u_int32_t deflate_global(u_int8_t *, u_int32_t, int, u_int8_t **);
void *z_alloc(void *, u_int, u_int);
void z_free(void *, void *);
/*
* We are going to use a combined allocation to hold the metadata
* from the struct immediately followed by the real application data.
*/
struct deflate_buf {
struct deflate_buf *next;
uint32_t size;
uint8_t data[];
};
#endif /* _CRYPTO_DEFLATE_H_ */