sequence_compression_api.c File Reference

#include <stddef.h>
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <time.h>
#include "fuzz_helpers.h"
#include "zstd_helpers.h"
#include "fuzz_data_producer.h"
#include "fuzz_third_party_seq_prod.h"

Macros
#define	ZSTD_STATIC_LINKING_ONLY
#define	ZSTD_FUZZ_GENERATED_SRC_MAXSIZE   (1 << 20) /* Allow up to 1MB generated data */
#define	ZSTD_FUZZ_GENERATED_LITERALS_SIZE   (1 << 20) /* Fixed size 1MB literals buffer */
#define	ZSTD_FUZZ_MATCHLENGTH_MAXSIZE   (1 << 18) /* Allow up to 256KB matches */
#define	ZSTD_FUZZ_GENERATED_DICT_MAXSIZE   (1 << ZSTD_WINDOWLOG_MAX_32) /* Allow up to 1 << ZSTD_WINDOWLOG_MAX_32 dictionary */
#define	ZSTD_FUZZ_MAX_NBSEQ   (1 << 17) /* Maximum of 128K sequences */
#define	FUZZ_RDG_rotl32(x, r)
#define	SPLITPROB   6000
#define	SPLITMARK   5234

Functions
int	LLVMFuzzerTestOneInput (const uint8_t *src, size_t size)

Macro Definition Documentation

FUZZ_RDG_rotl32

#define FUZZ_RDG_rotl32	(		x,
			r )

Value:

((x << r) | (x >> (32 - r)))

SPLITMARK

#define SPLITMARK   5234

SPLITPROB

#define SPLITPROB   6000

ZSTD_FUZZ_GENERATED_DICT_MAXSIZE

#define ZSTD_FUZZ_GENERATED_DICT_MAXSIZE   (1 << ZSTD_WINDOWLOG_MAX_32) /* Allow up to 1 << ZSTD_WINDOWLOG_MAX_32 dictionary */

ZSTD_FUZZ_GENERATED_LITERALS_SIZE

#define ZSTD_FUZZ_GENERATED_LITERALS_SIZE   (1 << 20) /* Fixed size 1MB literals buffer */

ZSTD_FUZZ_GENERATED_SRC_MAXSIZE

#define ZSTD_FUZZ_GENERATED_SRC_MAXSIZE   (1 << 20) /* Allow up to 1MB generated data */

ZSTD_FUZZ_MATCHLENGTH_MAXSIZE

#define ZSTD_FUZZ_MATCHLENGTH_MAXSIZE   (1 << 18) /* Allow up to 256KB matches */

ZSTD_FUZZ_MAX_NBSEQ

#define ZSTD_FUZZ_MAX_NBSEQ   (1 << 17) /* Maximum of 128K sequences */

ZSTD_STATIC_LINKING_ONLY

#define ZSTD_STATIC_LINKING_ONLY

This fuzz target performs a zstd round-trip test by generating an arbitrary array of sequences, generating the associated source buffer, calling ZSTD_compressSequences(), and then decompresses and compares the result with the original generated source buffer.

Function Documentation

LLVMFuzzerTestOneInput()

int LLVMFuzzerTestOneInput	(	const uint8_t *	src,
		size_t	size )

This fuzz target attempts to compress the fuzzed data with the simple compression function with an output buffer that may be too small to ensure that the compressor never crashes.

This fuzz target attempts to decompress the fuzzed data with the simple decompression function to ensure the decompressor never crashes.

This fuzz target performs a lz4 round-trip test (compress & decompress), compares the result with the original, and calls abort() on corruption.

This fuzz target fuzzes all of the helper functions that consume compressed input.

This fuzz target performs a zstd round-trip test (compress & decompress), compares the result with the original, and calls abort() on corruption.