| 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 uint8_t Sink; |
| 13 | const int kArraySize = 32505854; // 0x01effffe |
| 14 | uint8_t 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(dest: &a, src: Data, n: sizeof(a)); |
| 21 | a &= 0x1fffffff; |
| 22 | Sink = array[a % (kArraySize + 1)]; |
| 23 | return 0; |
| 24 | } |
| 25 |