inflate.c File Reference

#include <compat/zutil.h>
#include "inftrees.h"
#include "inflate.h"
#include "inffast.h"
#include "inffixed.h"

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Macros
#define	Z_TREES   6
#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
int	inflateReset2 (z_streamp strm, int windowBits)
static void	fixedtables (struct inflate_state FAR *state)
static int	updatewindow (z_streamp strm, const unsigned char FAR *end, unsigned copy)
static unsigned	syncsearch (unsigned FAR *have, const unsigned char FAR *buf, unsigned len)
long	inflateMark (z_streamp strm)
int	inflateResetKeep (z_streamp strm)
int	inflateUndermine (z_streamp strm, int subvert)
int	inflateGetDictionary (z_streamp strm, Bytef *dictionary, uInt *dictLength)
int	inflateReset (z_streamp strm)
int	inflateInit2_ (z_streamp strm, int windowBits, const char *version, int stream_size)
int	inflateInit_ (z_streamp strm, const char *version, int stream_size)
int	inflatePrime (z_streamp strm, int bits, int value)
static int	updatewindow (z_streamp strm, const Bytef *end, unsigned copy)
int	inflate (z_streamp strm, int flush)
int	inflateEnd (z_streamp strm)
int	inflateSetDictionary (z_streamp strm, const Bytef *dictionary, uInt dictLength)
int	inflateGetHeader (z_streamp strm, gz_headerp head)
int	inflateSync (z_streamp strm)
int	inflateSyncPoint (z_streamp strm)
int	inflateCopy (z_streamp dest, z_streamp source)

Macro Definition Documentation

BITS

#define BITS

(

n

)

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

BYTEBITS

#define BYTEBITS

(

)

Value:

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

CRC2

#define CRC2	(		check,
			word
	)

Value:

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

CRC4

#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)

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)

PULLBYTE

#define PULLBYTE

(

)

Value:

do { \
      if (have == 0) goto inf_leave; \
      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)

UPDATE

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

Z_TREES

#define Z_TREES   6

Function Documentation

fixedtables()

static void fixedtables ( struct inflate_state FAR *  state )

static

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inflate()

int inflate	(	z_streamp	strm,
		int	flush
	)

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inflateCopy()

int inflateCopy	(	z_streamp	dest,
		z_streamp	source
	)

inflateEnd()

int inflateEnd

(

z_streamp

strm

)

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inflateGetDictionary()

int inflateGetDictionary	(	z_streamp	strm,
		Bytef *	dictionary,
		uInt *	dictLength
	)

inflateGetHeader()

int inflateGetHeader	(	z_streamp	strm,
		gz_headerp	head
	)

inflateInit2_()

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

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inflateInit_()

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

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inflateMark()

long inflateMark

(

z_streamp

strm

)

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inflatePrime()

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

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inflateReset()

int inflateReset

(

z_streamp

strm

)

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inflateReset2()

int inflateReset2	(	z_streamp	strm,
		int	windowBits
	)

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inflateResetKeep()

int inflateResetKeep

(

z_streamp

strm

)

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inflateSetDictionary()

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

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inflateSync()

int inflateSync

(

z_streamp

strm

)

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inflateSyncPoint()

int inflateSyncPoint

(

z_streamp

strm

)

inflateUndermine()

int inflateUndermine	(	z_streamp	strm,
		int	subvert
	)

syncsearch()

static unsigned syncsearch ( unsigned FAR *  have, const unsigned char FAR *  buf, unsigned  len  )

static

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updatewindow() [1/2]

static int updatewindow ( z_streamp  strm, const unsigned char FAR *  end, unsigned  copy  )

static

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updatewindow() [2/2]

static int updatewindow ( z_streamp  strm, const Bytef *  end, unsigned  copy  )

static