50 lines
1.3 KiB
C
50 lines
1.3 KiB
C
|
/**
|
||
|
|
* Copyright (c) 2016-present, Yann Collet, Facebook, Inc.
|
||
|
|
* All rights reserved.
|
||
|
|
*
|
||
|
|
* This source code is licensed under both the BSD-style license (found in the
|
||
|
|
* LICENSE file in the root directory of this source tree) and the GPLv2 (found
|
||
|
|
* in the COPYING file in the root directory of this source tree).
|
||
|
|
*/
|
||
|
|
|
||
|
|
/**
|
||
|
|
* This fuzz target attempts to decompress the fuzzed data with the simple
|
||
|
|
* decompression function to ensure the decompressor never crashes.
|
||
|
|
*/
|
||
|
|
|
||
|
|
#define ZSTD_STATIC_LINKING_ONLY
|
||
|
|
|
||
|
|
#include <stddef.h>
|
||
|
|
#include <stdlib.h>
|
||
|
|
#include <stdio.h>
|
||
|
|
#include "fuzz_helpers.h"
|
||
|
|
#include "zstd.h"
|
||
|
|
|
||
|
|
static ZSTD_DCtx *dctx = NULL;
|
||
|
|
static void* rBuf = NULL;
|
||
|
|
static size_t bufSize = 0;
|
||
|
|
|
||
|
|
int LLVMFuzzerTestOneInput(const uint8_t *src, size_t size)
|
||
|
|
{
|
||
|
|
size_t const neededBufSize = ZSTD_BLOCKSIZE_MAX;
|
||
|
|
|
||
|
|
/* Allocate all buffers and contexts if not already allocated */
|
||
|
|
if (neededBufSize > bufSize) {
|
||
|
|
free(rBuf);
|
||
|
|
rBuf = malloc(neededBufSize);
|
||
|
|
bufSize = neededBufSize;
|
||
|
|
FUZZ_ASSERT(rBuf);
|
||
|
|
}
|
||
|
|
if (!dctx) {
|
||
|
|
dctx = ZSTD_createDCtx();
|
||
|
|
FUZZ_ASSERT(dctx);
|
||
|
|
}
|
||
|
|
ZSTD_decompressBegin(dctx);
|
||
|
|
ZSTD_decompressBlock(dctx, rBuf, neededBufSize, src, size);
|
||
|
|
|
||
|
|
#ifndef STATEFUL_FUZZING
|
||
|
|
ZSTD_freeDCtx(dctx); dctx = NULL;
|
||
|
|
#endif
|
||
|
|
return 0;
|
||
|
|
}
|