infback.c File Reference

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

Macros
#define	LOAD()
#define	RESTORE()
#define	INITBITS()
#define	PULL()
#define	PULLBYTE()
#define	NEEDBITS(n)
#define	BITS(n)
#define	DROPBITS(n)
#define	BYTEBITS()
#define	ROOM()

Functions
local void fixedtables1	OF ((struct inflate_state FAR *state))
int ZEXPORT	inflateBackInit_ (z_streamp strm, int windowBits, unsigned char FAR *window, const char *version, int stream_size)
local void	fixedtables1 (struct inflate_state FAR *state)
int ZEXPORT	inflateBack (z_streamp strm, in_func in, void FAR *in_desc, out_func out, void FAR *out_desc)
int ZEXPORT	inflateBackEnd (z_streamp strm)

Macro Definition Documentation

BITS

#define BITS

(

n

)

Value:

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

BYTEBITS

#define BYTEBITS

(

)

Value:

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

DROPBITS

#define DROPBITS

(

n

)

Value:

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

INITBITS

#define INITBITS

(

)

Value:

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

LOAD

#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)

NEEDBITS

#define NEEDBITS

(

n

)

Value:

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

PULL

#define PULL

(

)

Value:

do { \
    if (have == 0) { \
        have = in(in_desc, &next); \
        if (have == 0) { \
            next = Z_NULL; \
            ret = Z_BUF_ERROR; \
            goto inf_leave; \
        } \
    } \
} while (0)

PULLBYTE

#define PULLBYTE

(

)

Value:

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

RESTORE

#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)

ROOM

#define ROOM

(

)

Value:

do { \
    if (left == 0) { \
        put = state->window; \
        left = state->wsize; \
        state->whave = left; \
        if (out(out_desc, put, left)) { \
            ret = Z_BUF_ERROR; \
            goto inf_leave; \
        } \
    } \
} while (0)

Function Documentation

fixedtables1()

local void fixedtables1

(

struct inflate_state FAR *

state

)

inflateBack()

int ZEXPORT inflateBack	(	z_streamp	strm,
		in_func	in,
		void FAR *	in_desc,
		out_func	out,
		void FAR *	out_desc )

inflateBackEnd()

int ZEXPORT inflateBackEnd

(

z_streamp

strm

)

inflateBackInit_()

int ZEXPORT inflateBackInit_	(	z_streamp	strm,
		int	windowBits,
		unsigned char FAR *	window,
		const char *	version,
		int	stream_size )

OF()

local void fixedtables1 OF

(

(struct inflate_state FAR *state)

)