/*
 * ----------------------------------------------------------------------------
 * "THE BEER-WARE LICENSE" (Revision 42):
 * <phk@login.dkuug.dk> wrote this file.  As long as you retain this notice you
 * can do whatever you want with this stuff. If we meet some day, and you think
 * this stuff is worth it, you can buy me a beer in return.   Poul-Henning Kamp
 * ----------------------------------------------------------------------------
 *
 * $FreeBSD: src/sys/sys/inflate.h,v 1.11 1999/12/29 04:24:42 peter Exp $
 * $DragonFly: src/sys/sys/inflate.h,v 1.4 2006/05/20 02:42:13 dillon Exp $
 *
 */
#ifndef _SYS_INFLATE_H_
#define _SYS_INFLATE_H_

#if defined(_KERNEL) || defined(KZIP)

#ifndef _SYS_TYPES_H_
#include <sys/types.h>
#endif

#define GZ_EOF -1

#define GZ_WSIZE 0x8000

/*
 * Global variables used by inflate and friends.
 * This structure is used in order to make inflate() reentrant.
 */
struct inflate {
        /* Public part */

        /* This pointer is passed along to the two functions below */
        void           *gz_private;

        /* Fetch next character to be uncompressed */
        int             (*gz_input) (void *);

        /* Dispose of uncompressed characters */
        int             (*gz_output) (void *, u_char *, u_long);

        /* Private part */
        u_long          gz_bb;  /* bit buffer */
        unsigned        gz_bk;  /* bits in bit buffer */
        unsigned        gz_hufts;       /* track memory usage */
        struct huft    *gz_fixed_tl;    /* must init to NULL !! */
        struct huft    *gz_fixed_td;
        int             gz_fixed_bl;
        int             gz_fixed_bd;
        u_char         *gz_slide;
        unsigned        gz_wp;
};

int inflate     (struct inflate *);

#endif  /* _KERNEL || KZIP */

#endif  /* ! _SYS_INFLATE_H_ */