| // © 2019 and later: Unicode, Inc. and others. |
| // License & terms of use: http://www.unicode.org/copyright.html |
| |
| // Fuzzer for ICU Locales. |
| |
| #include <algorithm> |
| #include <cstddef> |
| #include <cstdint> |
| #include <cstdlib> |
| #include <string> |
| #include <vector> |
| |
| #include "unicode/locid.h" |
| |
| namespace { |
| |
| void ConsumeNBytes(const uint8_t** data, size_t* size, size_t N) { |
| *data += N; |
| *size -= N; |
| } |
| |
| uint8_t ConsumeUint8(const uint8_t** data, size_t* size) { |
| uint8_t tmp = 0; |
| if (*size >= 1) { |
| tmp = (*data)[0]; |
| ConsumeNBytes(data, size, 1); |
| } |
| return tmp; |
| } |
| |
| std::string ConsumeSubstring(const uint8_t** data, size_t* size) { |
| const size_t request_size = ConsumeUint8(data, size); |
| const char* substring_start = reinterpret_cast<const char*>(*data); |
| const size_t substring_size = std::min(*size, request_size); |
| ConsumeNBytes(data, size, substring_size); |
| return std::string(substring_start, substring_size); |
| } |
| |
| } // namespace |
| |
| extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { |
| const std::string language = ConsumeSubstring(&data, &size); |
| const std::string country = ConsumeSubstring(&data, &size); |
| const std::string variant = ConsumeSubstring(&data, &size); |
| const std::string kv_pairs = ConsumeSubstring(&data, &size); |
| icu::Locale locale(language.c_str(), country.c_str(), variant.c_str(), |
| kv_pairs.c_str()); |
| return EXIT_SUCCESS; |
| } |