inflate.c File Reference

#include "zutil.h"
#include "inftrees.h"
#include "inflate.h"
#include "inffast.h"
#include "inffixed.h"

Go to the source code of this file.

Macros
#define	UPDATE(check, buf, len)   (state->flags ? crc32(check, buf, len) : adler32(check, buf, len))
#define	CRC2(check, word)
#define	CRC4(check, word)
#define	LOAD()
#define	RESTORE()
#define	INITBITS()
#define	PULLBYTE()
#define	NEEDBITS(n)
#define	BITS(n)   ((unsigned)hold & ((1U << (n)) - 1))
#define	DROPBITS(n)
#define	BYTEBITS()

Functions
local void fixedtables	OF ((struct inflate_state FAR *state))
local int updatewindow	OF ((z_streamp strm, unsigned out))
local unsigned syncsearch	OF ((unsigned FAR *have, unsigned char FAR *buf, unsigned len))
int ZEXPORT	inflateResetKeep (z_streamp strm)
int ZEXPORT	inflateReset (z_streamp strm)
int ZEXPORT	inflateReset2 (z_streamp strm, int windowBits)
int ZEXPORT	inflateInit2_ (z_streamp strm, int windowBits, const char *version, int stream_size)
int ZEXPORT	inflateInit_ (z_streamp strm, const char *version, int stream_size)
int ZEXPORT	inflatePrime (z_streamp strm, int bits, int value)
local void	fixedtables (struct inflate_state FAR *state)
local int	updatewindow (z_streamp strm, unsigned out)
int ZEXPORT	inflate (z_streamp strm, int flush)
int ZEXPORT	inflateEnd (z_streamp strm)
int ZEXPORT	inflateSetDictionary (z_streamp strm, const Bytef *dictionary, uInt dictLength)
int ZEXPORT	inflateGetHeader (z_streamp strm, gz_headerp head)
local unsigned	syncsearch (unsigned FAR *have, unsigned char FAR *buf, unsigned len)
int ZEXPORT	inflateSync (z_streamp strm)
int ZEXPORT	inflateSyncPoint (z_streamp strm)
int ZEXPORT	inflateCopy (z_streamp dest, z_streamp source)
int ZEXPORT	inflateUndermine (z_streamp strm, int subvert)
long ZEXPORT	inflateMark (z_streamp strm)

Macro Definition Documentation

#define BITS

(

n)

((unsigned)hold & ((1U << (n)) - 1))

Definition at line 505 of file inflate.c.

#define BYTEBITS

(

)

Value:

do { \
        hold >>= bits & 7; \
        bits -= bits & 7; \
    } while (0)

Definition at line 516 of file inflate.c.

#define CRC2	(		check,
			word
	)

Value:

do { \
        hbuf[0] = (unsigned char)(word); \
        hbuf[1] = (unsigned char)((word) >> 8); \
        check = crc32(check, hbuf, 2); \
    } while (0)

Definition at line 440 of file inflate.c.

#define CRC4	(		check,
			word
	)

Value:

do { \
        hbuf[0] = (unsigned char)(word); \
        hbuf[1] = (unsigned char)((word) >> 8); \
        hbuf[2] = (unsigned char)((word) >> 16); \
        hbuf[3] = (unsigned char)((word) >> 24); \
        check = crc32(check, hbuf, 4); \
    } while (0)

Definition at line 447 of file inflate.c.

#define DROPBITS

(

n)

Value:

do { \
        hold >>= (n); \
        bits -= (unsigned)(n); \
    } while (0)

Definition at line 509 of file inflate.c.

#define INITBITS

(

)

Value:

do { \
        hold = 0; \
        bits = 0; \
    } while (0)

Definition at line 480 of file inflate.c.

#define LOAD

(

)

Value:

do { \
        put = strm->next_out; \
        left = strm->avail_out; \
        next = strm->next_in; \
        have = strm->avail_in; \
        hold = state->hold; \
        bits = state->bits; \
    } while (0)

Definition at line 458 of file inflate.c.

#define NEEDBITS

(

n)

Value:

do { \
        while (bits < (unsigned)(n)) \
            PULLBYTE(); \
    } while (0)

Definition at line 498 of file inflate.c.

#define PULLBYTE

(

)

Value:

do { \
        if (have == 0) goto inf_leave; \
        have--; \
        hold += (unsigned long)(*next++) << bits; \
        bits += 8; \
    } while (0)

Definition at line 488 of file inflate.c.

#define RESTORE

(

)

Value:

do { \
        strm->next_out = put; \
        strm->avail_out = left; \
        strm->next_in = next; \
        strm->avail_in = have; \
        state->hold = hold; \
        state->bits = bits; \
    } while (0)

Definition at line 469 of file inflate.c.

#define UPDATE	(		check,
			buf,
			len
	)		(state->flags ? crc32(check, buf, len) : adler32(check, buf, len))

Definition at line 432 of file inflate.c.

Function Documentation

local void fixedtables

(

struct inflate_state FAR *

state)

Definition at line 260 of file inflate.c.

int ZEXPORT inflate	(	z_streamp	strm,
		int	flush
	)

Definition at line 604 of file inflate.c.

int ZEXPORT inflateCopy	(	z_streamp	dest,
		z_streamp	source
	)

Definition at line 1422 of file inflate.c.

int ZEXPORT inflateEnd

(

z_streamp

strm)

Definition at line 1253 of file inflate.c.

int ZEXPORT inflateGetHeader	(	z_streamp	strm,
		gz_headerp	head
	)

Definition at line 1310 of file inflate.c.

int ZEXPORT inflateInit2_	(	z_streamp	strm,
		int	windowBits,
		const char *	version,
		int	stream_size
	)

Definition at line 179 of file inflate.c.

int ZEXPORT inflateInit_	(	z_streamp	strm,
		const char *	version,
		int	stream_size
	)

Definition at line 221 of file inflate.c.

long ZEXPORT inflateMark

(

z_streamp

strm)

Definition at line 1486 of file inflate.c.

int ZEXPORT inflatePrime	(	z_streamp	strm,
		int	bits,
		int	value
	)

Definition at line 229 of file inflate.c.

int ZEXPORT inflateReset

(

z_streamp

strm)

Definition at line 128 of file inflate.c.

int ZEXPORT inflateReset2	(	z_streamp	strm,
		int	windowBits
	)

Definition at line 141 of file inflate.c.

int ZEXPORT inflateResetKeep

(

z_streamp

strm)

Definition at line 103 of file inflate.c.

int ZEXPORT inflateSetDictionary	(	z_streamp	strm,
		const Bytef *	dictionary,
		uInt	dictLength
	)

Definition at line 1267 of file inflate.c.

int ZEXPORT inflateSync

(

z_streamp

strm)

Definition at line 1361 of file inflate.c.

int ZEXPORT inflateSyncPoint

(

z_streamp

strm)

Definition at line 1412 of file inflate.c.

int ZEXPORT inflateUndermine	(	z_streamp	strm,
		int	subvert
	)

Definition at line 1469 of file inflate.c.

local void fixedtables OF

(

(struct inflate_state FAR *state)

)

local int updatewindow OF

(

(z_streamp strm, unsigned out)

)

local unsigned syncsearch OF

(

(unsigned FAR *have, unsigned char FAR *buf, unsigned len)

)

local unsigned syncsearch	(	unsigned FAR *	have,
		unsigned char FAR *	buf,
		unsigned	len
	)

Definition at line 1338 of file inflate.c.

local int updatewindow	(	z_streamp	strm,
		unsigned	out
	)

Definition at line 378 of file inflate.c.