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 
12 static volatile int Sink;
13 const int kArraySize = 1234567;
14 int array[kArraySize];
15 
16 extern "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, 8);
21   Sink = array[a % (kArraySize + 1)];
22   return 0;
23 }
24