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- /**
- * Copyright (c) 2016-2021, 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).
- * You may select, at your option, one of the above-listed licenses.
- */
- /**
- * 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 = FUZZ_malloc(neededBufSize);
- bufSize = neededBufSize;
- }
- 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;
- }
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