adler32.c File Reference

#include "zutil.h"

Go to the source code of this file.

Macros
#define	local   static
#define	BASE   65521 /* largest prime smaller than 65536 */
#define	NMAX   5552
#define	DO1(buf, i)   {adler += (buf)[i]; sum2 += adler;}
#define	DO2(buf, i)   DO1(buf,i); DO1(buf,i+1);
#define	DO4(buf, i)   DO2(buf,i); DO2(buf,i+2);
#define	DO8(buf, i)   DO4(buf,i); DO4(buf,i+4);
#define	DO16(buf)   DO8(buf,0); DO8(buf,8);
#define	MOD(a)   a %= BASE
#define	MOD28(a)   a %= BASE
#define	MOD63(a)   a %= BASE

Functions
local uLong adler32_combine_	OF ((uLong adler1, uLong adler2, z_off64_t len2))
uLong ZEXPORT	adler32 (uLong adler, const Bytef *buf, uInt len)
local uLong	adler32_combine_ (uLong adler1, uLong adler2, z_off64_t len2)
uLong ZEXPORT	adler32_combine (uLong adler1, uLong adler2, z_off_t len2)
uLong ZEXPORT	adler32_combine64 (uLong adler1, uLong adler2, z_off64_t len2)

Macro Definition Documentation

BASE

#define BASE   65521 /* largest prime smaller than 65536 */

Definition at line 14 of file adler32.c.

Referenced by adler32(), and adler32_combine_().

DO1

#define DO1	(		buf,
			i
	)		{adler += (buf)[i]; sum2 += adler;}

Definition at line 18 of file adler32.c.

DO16

#define DO16

(

buf

)

DO8(buf,0); DO8(buf,8);

Definition at line 22 of file adler32.c.

Referenced by adler32().

DO2

#define DO2	(		buf,
			i
	)		DO1(buf,i); DO1(buf,i+1);

Definition at line 19 of file adler32.c.

DO4

#define DO4	(		buf,
			i
	)		DO2(buf,i); DO2(buf,i+2);

Definition at line 20 of file adler32.c.

DO8

#define DO8	(		buf,
			i
	)		DO4(buf,i); DO4(buf,i+4);

Definition at line 21 of file adler32.c.

local

#define local   static

Definition at line 10 of file adler32.c.

MOD

#define MOD

(

a

)

a %= BASE

Definition at line 59 of file adler32.c.

Referenced by adler32(), and adler32_combine_().

MOD28

#define MOD28

(

a

)

a %= BASE

Definition at line 60 of file adler32.c.

Referenced by adler32().

MOD63

#define MOD63

(

a

)

a %= BASE

Definition at line 61 of file adler32.c.

Referenced by adler32_combine_().

NMAX

#define NMAX   5552

Definition at line 15 of file adler32.c.

Referenced by adler32().

Function Documentation

adler32()

uLong ZEXPORT adler32	(	uLong	adler,
		const Bytef *	buf,
		uInt	len
	)

Definition at line 65 of file adler32.c.

References BASE, DO16, MOD, MOD28, NMAX, and Z_NULL.

Referenced by deflate(), deflateResetKeep(), deflateSetDictionary(), inflate(), inflateSetDictionary(), read_buf(), DotZLib.CRC32Checksum::Update(), DotZLib.AdlerChecksum::Update(), and ZEXPORT().

adler32_combine()

uLong ZEXPORT adler32_combine	(	uLong	adler1,
		uLong	adler2,
		z_off_t	len2
	)

Definition at line 165 of file adler32.c.

References adler32_combine_().

adler32_combine64()

uLong ZEXPORT adler32_combine64	(	uLong	adler1,
		uLong	adler2,
		z_off64_t	len2
	)

Definition at line 173 of file adler32.c.

References adler32_combine_().

adler32_combine_()

local uLong adler32_combine_	(	uLong	adler1,
		uLong	adler2,
		z_off64_t	len2
	)

Definition at line 136 of file adler32.c.

References BASE, MOD, and MOD63.

Referenced by adler32_combine(), and adler32_combine64().

OF()

local uLong adler32_combine_ OF

(

(uLong adler1, uLong adler2, z_off64_t len2)

)