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

Include dependency graph for crc32.c:

Go to the source code of this file.

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Macros
#define	N 5

#define	W 4

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

Functions
z_crc_t multmodp	OF ((z_crc_t a, z_crc_t b))

z_crc_t x2nmodp	OF ((z_off64_t n, unsigned k))

z_crc_t	multmodp (z_crc_t a, z_crc_t b)

z_crc_t	x2nmodp (z_off64_t n, unsigned k)

const z_crc_t FAR *ZEXPORT	get_crc_table ()

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	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 141 of file crc32.c.

◆ W

#define W 4

Definition at line 85 of file crc32.c.

Function Documentation

◆ crc32()

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

Definition at line 1063 of file crc32.c.

References buf, crc32_z(), and len.

◆ crc32_combine()

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

Definition at line 1084 of file crc32.c.

References crc32_combine64().

◆ crc32_combine64()

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

Definition at line 1072 of file crc32.c.

References multmodp(), and x2nmodp().

Referenced by crc32_combine().

◆ crc32_combine_gen()

uLong ZEXPORT crc32_combine_gen ( z_off_t len2 )

Definition at line 1103 of file crc32.c.

References crc32_combine_gen64().

◆ crc32_combine_gen64()

uLong ZEXPORT crc32_combine_gen64 ( z_off64_t len2 )

Definition at line 1093 of file crc32.c.

References x2nmodp().

Referenced by crc32_combine_gen().

◆ crc32_combine_op()

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

Definition at line 1110 of file crc32.c.

References multmodp().

◆ crc32_z()

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

Definition at line 739 of file crc32.c.

References buf, crc_table, len, N, W, and Z_NULL.

Referenced by crc32().

◆ get_crc_table()

const z_crc_t FAR* ZEXPORT get_crc_table ( )

Definition at line 586 of file crc32.c.

References crc_table, and FAR.

◆ multmodp()

z_crc_t multmodp	(	z_crc_t	a,
		z_crc_t	b
	)

Definition at line 542 of file crc32.c.

References a, b, and POLY.

Referenced by crc32_combine64(), crc32_combine_op(), and x2nmodp().

◆ OF() [1/2]

z_crc_t multmodp OF ( (z_crc_t a, z_crc_t b) )

◆ OF() [2/2]

z_crc_t x2nmodp OF ( (z_off64_t n, unsigned k) )

◆ x2nmodp()

z_crc_t x2nmodp	(	z_off64_t	n,
		unsigned	k
	)

Definition at line 566 of file crc32.c.

References multmodp(), n, and x2n_table.

Referenced by crc32_combine64(), and crc32_combine_gen64().

Macros

Functions