47 lines
1.4 KiB
C
47 lines
1.4 KiB
C
/**
|
|
* This fuzz target performs a lz4 round-trip test (compress & decompress),
|
|
* compares the result with the original, and calls abort() on corruption.
|
|
*/
|
|
|
|
#include <stddef.h>
|
|
#include <stdint.h>
|
|
#include <stdlib.h>
|
|
#include <string.h>
|
|
|
|
#include "fuzz_helpers.h"
|
|
#include "fuzz_data_producer.h"
|
|
#include "lz4.h"
|
|
#include "lz4hc.h"
|
|
|
|
int LLVMFuzzerTestOneInput(const uint8_t *data, size_t size)
|
|
{
|
|
FUZZ_dataProducer_t *producer = FUZZ_dataProducer_create(data, size);
|
|
int const level = FUZZ_dataProducer_uint32NonAdaptive(producer,
|
|
LZ4HC_CLEVEL_MIN, LZ4HC_CLEVEL_MAX);
|
|
size_t const dstCapacity = LZ4_compressBound(
|
|
FUZZ_dataProducer_remainingBytes(producer));
|
|
char* const dst = (char*)malloc(dstCapacity);
|
|
char* const rt = (char*)malloc(size);
|
|
|
|
/* Restrict to remaining data from producer */
|
|
size = FUZZ_dataProducer_remainingBytes(producer);
|
|
|
|
FUZZ_ASSERT(dst);
|
|
FUZZ_ASSERT(rt);
|
|
|
|
/* Compression must succeed and round trip correctly. */
|
|
int const dstSize = LZ4_compress_HC((const char*)data, dst, size,
|
|
dstCapacity, level);
|
|
FUZZ_ASSERT(dstSize > 0);
|
|
|
|
int const rtSize = LZ4_decompress_safe(dst, rt, dstSize, size);
|
|
FUZZ_ASSERT_MSG(rtSize == size, "Incorrect size");
|
|
FUZZ_ASSERT_MSG(!memcmp(data, rt, size), "Corruption!");
|
|
|
|
free(dst);
|
|
free(rt);
|
|
FUZZ_dataProducer_free(producer);
|
|
|
|
return 0;
|
|
}
|