1// Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions.
2// See https://llvm.org/LICENSE.txt for license information.
3// SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception
4
5// Simple test for a fuzzer: find interesting value of array index.
6#include <assert.h>
7#include <cstddef>
8#include <cstdint>
9#include <cstring>
10#include <iostream>
11
12static volatile uint8_t Sink;
13const int kArraySize = 32505854; // 0x01effffe
14uint8_t array[kArraySize];
15
16extern "C" int LLVMFuzzerTestOneInput(const uint8_t *Data, size_t Size) {
17 if (Size != 8)
18 return 0;
19 uint64_t a = 0;
20 memcpy(&a, Data, sizeof(a));
21 a &= 0x1fffffff;
22 Sink = array[a % (kArraySize + 1)];
23 return 0;
24}
25