| 1 | //===----------------------------------------------------------------------===// |
|---|---|
| 2 | // |
| 3 | // Part of the LLVM Project, under the Apache License v2.0 with LLVM Exceptions. |
| 4 | // See https://llvm.org/LICENSE.txt for license information. |
| 5 | // SPDX-License-Identifier: Apache-2.0 WITH LLVM-exception |
| 6 | // |
| 7 | //===----------------------------------------------------------------------===// |
| 8 | |
| 9 | // UNSUPPORTED: c++03, c++11 |
| 10 | |
| 11 | #include <algorithm> |
| 12 | #include <cassert> |
| 13 | #include <cstddef> |
| 14 | #include <cstdint> |
| 15 | #include <limits> |
| 16 | |
| 17 | #include "fuzz.h" |
| 18 | |
| 19 | extern "C"int LLVMFuzzerTestOneInput(const std::uint8_t *data, std::size_t size) { |
| 20 | if (size < 2) |
| 21 | return 0; |
| 22 | |
| 23 | const std::size_t pat_size = data[0] * (size - 1) / std::numeric_limits<uint8_t>::max(); |
| 24 | assert(pat_size <= size - 1); |
| 25 | const std::uint8_t *pat_begin = data + 1; |
| 26 | const std::uint8_t *pat_end = pat_begin + pat_size; |
| 27 | const std::uint8_t *data_end = data + size; |
| 28 | assert(pat_end <= data_end); |
| 29 | |
| 30 | auto it = std::search(first1: pat_end, last1: data_end, first2: pat_begin, last2: pat_end); |
| 31 | if (it != data_end) // not found |
| 32 | if (!std::equal(first1: pat_begin, last1: pat_end, first2: it)) |
| 33 | return 1; |
| 34 | return 0; |
| 35 | } |
| 36 |