adler32.h File Reference

#include <rz_types.h>

Go to the source code of this file.

Classes
struct	adler32_t

Macros
#define	RZ_HASH_ADLER32_DIGEST_SIZE   4
#define	RZ_HASH_ADLER32_BLOCK_LENGTH   0

Typedefs
typedef struct adler32_t	RzAdler32

Functions
bool	rz_adler32_init (RzAdler32 *ctx)
bool	rz_adler32_update (RzAdler32 *ctx, const ut8 *data, size_t len)
bool	rz_adler32_final (ut8 *digest, RzAdler32 *ctx)

Macro Definition Documentation

RZ_HASH_ADLER32_BLOCK_LENGTH

#define RZ_HASH_ADLER32_BLOCK_LENGTH   0

Definition at line 10 of file adler32.h.

RZ_HASH_ADLER32_DIGEST_SIZE

#define RZ_HASH_ADLER32_DIGEST_SIZE   4

Definition at line 9 of file adler32.h.

Typedef Documentation

RzAdler32

typedef struct adler32_t RzAdler32

Function Documentation

rz_adler32_final()

bool rz_adler32_final	(	ut8 *	digest,
		RzAdler32 *	ctx
	)

Definition at line 23 of file adler32.c.

                                                   {
    rz_return_val_if_fail(digest && ctx, false);
    rz_write_le32(digest, ctx->high << 16 | ctx->low);
    return true;
}

References rz_return_val_if_fail, and rz_write_le32().

Referenced by plugin_adler32_final(), and plugin_adler32_small_block().

rz_adler32_init()

bool rz_adler32_init

(

RzAdler32 *

ctx

)

Definition at line 7 of file adler32.c.

                                     {
    rz_return_val_if_fail(ctx, false);
    ctx->low = 1;
    ctx->high = 0;
    return true;
}

References rz_return_val_if_fail.

Referenced by plugin_adler32_init(), and plugin_adler32_small_block().

rz_adler32_update()

bool rz_adler32_update	(	RzAdler32 *	ctx,
		const ut8 *	data,
		size_t	len
	)

Definition at line 14 of file adler32.c.

                                                                    {
    rz_return_val_if_fail(ctx && data, false);
    for (size_t index = 0; index < len; index++) {
        ctx->low = (ctx->low + data[index]) % 65521;
        ctx->high = (ctx->high + ctx->low) % 65521;
    }
    return true;
}

References len, and rz_return_val_if_fail.

Referenced by plugin_adler32_small_block(), and plugin_adler32_update().