| // Copyright 2018 The Fuchsia Authors. All rights reserved. |
| // Use of this source code is governed by a BSD-style license that can be |
| // found in the LICENSE file. |
| |
| #include <assert.h> |
| #include <limits.h> |
| #include <stddef.h> |
| #include <stdint.h> |
| #include <stdlib.h> |
| #include <string.h> |
| |
| #include <lz4/lz4.h> |
| |
| static const size_t kMaxBufSize = 1024 * 1024 * 100; // 100 MiB |
| |
| static char compressedData[kMaxBufSize] = {0}; |
| static char decompressedData[kMaxBufSize] = {0}; |
| |
| // fuzz_target.cc |
| extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { |
| static_assert(kMaxBufSize <= INT_MAX); |
| if (size > kMaxBufSize) { |
| return 0; |
| } |
| |
| // src will be data to compress. No need to be NULL-terminated. |
| const char* src = reinterpret_cast<const char*>(data); |
| int srcSize = static_cast<int>(size); |
| |
| int dstSize = LZ4_compressBound(srcSize); |
| assert(dstSize > 0); |
| assert(dstSize <= static_cast<int>(kMaxBufSize)); |
| |
| int compressedSize = LZ4_compress_default(src, compressedData, srcSize, dstSize); |
| // compression is guaranteed to succeed if dstSize <= LZ4_compressBound(srcSize). |
| assert(compressedSize > 0); |
| |
| int decompressedSize = |
| LZ4_decompress_safe(compressedData, decompressedData, compressedSize, kMaxBufSize); |
| |
| assert(decompressedSize == srcSize); |
| assert(memcmp(data, decompressedData, size) == 0); |
| |
| return 0; |
| } |