freebsd-dev/sys/sys/inflate.h
2002-03-26 08:29:40 +00:00

54 lines
1.5 KiB
C

/*
* ----------------------------------------------------------------------------
* "THE BEER-WARE LICENSE" (Revision 42):
* <phk@FreeBSD.org> 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
* ----------------------------------------------------------------------------
*
* $FreeBSD$
*
*/
#ifndef _SYS_INFLATE_H_
#define _SYS_INFLATE_H_
#if defined(_KERNEL) || defined(KZIP)
#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_ */