crc32.c File Reference

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

Include dependency graph for crc32.c:

Go to the source code of this file.

Macros
#define	local   static
#define	TBLS   1
#define	DO1   crc = crc_table[0][((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8)
#define	DO8   DO1; DO1; DO1; DO1; DO1; DO1; DO1; DO1
#define	GF2_DIM   32 /* dimension of GF(2) vectors (length of CRC) */

Functions
static unsigned long	gf2_matrix_times ()
static void	gf2_matrix_square ()
static uLong	crc32_combine_ ()
z_crc_t *	get_crc_table ()
unsigned long	crc32 (unsigned long crc, unsigned char *buf, uInt len)
static unsigned long	gf2_matrix_times (unsigned long *mat, unsigned long vec)
static void	gf2_matrix_square (unsigned long *square, unsigned long *mat)
static uLong	crc32_combine_ (uLong crc1, uLong crc2, long len2)
uLong	crc32_combine (uLong crc1, uLong crc2, long len2)
uLong	crc32_combine64 (uLong crc1, uLong crc2, long len2)

Macro Definition Documentation

#define DO1   crc = crc_table[0][((int)crc ^ (*buf++)) & 0xff] ^ (crc >> 8)

Definition at line 200 of file crc32.c.

#define DO8   DO1; DO1; DO1; DO1; DO1; DO1; DO1; DO1

Definition at line 201 of file crc32.c.

#define GF2_DIM   32 /* dimension of GF(2) vectors (length of CRC) */

Definition at line 324 of file crc32.c.

#define local   static

Definition at line 33 of file crc32.c.

#define TBLS   1

Definition at line 46 of file crc32.c.

Function Documentation

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

Definition at line 204 of file crc32.c.

uLong crc32_combine	(	uLong	crc1,
		uLong	crc2,
		long	len2
	)

Definition at line 411 of file crc32.c.

uLong crc32_combine64	(	uLong	crc1,
		uLong	crc2,
		long	len2
	)

Definition at line 419 of file crc32.c.

static uLong crc32_combine_ ( )

static

static uLong crc32_combine_ ( uLong  crc1, uLong  crc2, long  len2  )

static

Definition at line 355 of file crc32.c.

z_crc_t* get_crc_table

(

)

Definition at line 190 of file crc32.c.

static void gf2_matrix_square ( )

static

static void gf2_matrix_square ( unsigned long *  square, unsigned long *  mat  )

static

Definition at line 344 of file crc32.c.

static unsigned long gf2_matrix_times ( )

static

static unsigned long gf2_matrix_times ( unsigned long *  mat, unsigned long  vec  )

static

Definition at line 327 of file crc32.c.