crc32.c File Reference

#include "zutil.h"
#include "crc32.h"

Go to the source code of this file.

Macros
#define	N   5
#define	W   4
#define	W   4
#define	POLY   0xedb88320 /* p(x) reflected, with x^32 implied */

Typedefs
typedef Z_U4	z_word_t

Functions
local z_crc_t multmodp	OF ((z_crc_t a, z_crc_t b))
local z_crc_t x2nmodp	OF ((z_off64_t n, unsigned k))
local z_word_t byte_swap	OF ((z_word_t word))
local z_crc_t crc_word	OF ((z_word_t data))
local z_word_t	byte_swap (z_word_t word)
local z_crc_t	multmodp (z_crc_t a, z_crc_t b)
local z_crc_t	x2nmodp (z_off64_t n, unsigned k)
const z_crc_t FAR *ZEXPORT	get_crc_table ()
local z_crc_t	crc_word (z_word_t data)
local z_word_t	crc_word_big (z_word_t data)
unsigned long ZEXPORT	crc32_z (unsigned long crc, const unsigned char FAR *buf, z_size_t len)
unsigned long ZEXPORT	crc32 (unsigned long crc, const unsigned char FAR *buf, uInt len)
uLong ZEXPORT	crc32_combine64 (uLong crc1, uLong crc2, z_off64_t len2)
uLong ZEXPORT	crc32_combine (uLong crc1, uLong crc2, z_off_t len2)
uLong ZEXPORT	crc32_combine_gen64 (z_off64_t len2)
uLong ZEXPORT	crc32_combine_gen (z_off_t len2)
uLong ZEXPORT	crc32_combine_op (uLong crc1, uLong crc2, uLong op)

Macro Definition Documentation

N

#define N   5

Definition at line 57 of file crc32.c.

POLY

#define POLY   0xedb88320 /* p(x) reflected, with x^32 implied */

Definition at line 150 of file crc32.c.

W [1/2]

#define W   4

Definition at line 85 of file crc32.c.

W [2/2]

#define W   4

Definition at line 85 of file crc32.c.

Typedef Documentation

z_word_t

typedef Z_U4 z_word_t

Definition at line 95 of file crc32.c.

Function Documentation

byte_swap()

local z_word_t byte_swap

(

z_word_t

word

)

Definition at line 126 of file crc32.c.

crc32()

unsigned long ZEXPORT crc32	(	unsigned long	crc,
		const unsigned char FAR *	buf,
		uInt	len )

Definition at line 1072 of file crc32.c.

crc32_combine()

uLong ZEXPORT crc32_combine	(	uLong	crc1,
		uLong	crc2,
		z_off_t	len2 )

Definition at line 1093 of file crc32.c.

crc32_combine64()

uLong ZEXPORT crc32_combine64	(	uLong	crc1,
		uLong	crc2,
		z_off64_t	len2 )

Definition at line 1081 of file crc32.c.

crc32_combine_gen()

uLong ZEXPORT crc32_combine_gen

(

z_off_t

len2

)

Definition at line 1112 of file crc32.c.

crc32_combine_gen64()

uLong ZEXPORT crc32_combine_gen64

(

z_off64_t

len2

)

Definition at line 1102 of file crc32.c.

crc32_combine_op()

uLong ZEXPORT crc32_combine_op	(	uLong	crc1,
		uLong	crc2,
		uLong	op )

Definition at line 1119 of file crc32.c.

crc32_z()

unsigned long ZEXPORT crc32_z	(	unsigned long	crc,
		const unsigned char FAR *	buf,
		z_size_t	len )

Definition at line 748 of file crc32.c.

crc_word()

local z_crc_t crc_word

(

z_word_t

data

)

Definition at line 726 of file crc32.c.

crc_word_big()

local z_word_t crc_word_big

(

z_word_t

data

)

Definition at line 735 of file crc32.c.

get_crc_table()

const z_crc_t FAR *ZEXPORT get_crc_table

(

)

Definition at line 595 of file crc32.c.

multmodp()

local z_crc_t multmodp	(	z_crc_t	a,
		z_crc_t	b )

Definition at line 551 of file crc32.c.

OF() [1/4]

local z_crc_t multmodp OF

(

(z_crc_t a, z_crc_t b)

)

OF() [2/4]

local z_crc_t x2nmodp OF

(

(z_off64_t n, unsigned k)

)

OF() [3/4]

local z_crc_t crc_word OF

(

(z_word_t data)

)

OF() [4/4]

local z_word_t byte_swap OF

(

(z_word_t word)

)

x2nmodp()

local z_crc_t x2nmodp	(	z_off64_t	n,
		unsigned	k )

Definition at line 575 of file crc32.c.