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 | // UNSUPPORTED: no-exceptions |
11 | // UNSUPPORTED: no-localization |
12 | |
13 | #include <cstddef> |
14 | #include <cstdint> |
15 | #include <regex> |
16 | #include <string> |
17 | |
18 | #include "fuzz.h" |
19 | |
20 | template <std::regex_constants::syntax_option_type Syntax> |
21 | static int regex_test(const std::uint8_t *data, std::size_t size) { |
22 | if (size == 0) |
23 | return 0; |
24 | |
25 | std::string s((const char *)data, size); |
26 | std::regex re; |
27 | try { |
28 | re.assign(s: s, flags: Syntax); |
29 | } catch (std::regex_error &) { |
30 | // the data represents an invalid regex, ignore this test case |
31 | return 0; |
32 | } |
33 | |
34 | auto match = std::regex_match(s: s, re: re); |
35 | (void)match; |
36 | return 0; // always pretend we succeeded -- we're only looking for crashes |
37 | } |
38 | |
39 | extern "C" int LLVMFuzzerTestOneInput(const std::uint8_t *data, std::size_t size) { |
40 | return regex_test<std::regex_constants::awk>(data, size) || |
41 | regex_test<std::regex_constants::basic>(data, size) || |
42 | regex_test<std::regex_constants::ECMAScript>(data, size) || |
43 | regex_test<std::regex_constants::egrep>(data, size) || |
44 | regex_test<std::regex_constants::extended>(data, size) || |
45 | regex_test<std::regex_constants::grep>(data, size); |
46 | } |
47 | |