1 // Copyright 2020 Google LLC 2 // 3 // Licensed under the Apache License, Version 2.0 (the "License"); 4 // you may not use this file except in compliance with the License. 5 // You may obtain a copy of the License at 6 // 7 // http://www.apache.org/licenses/LICENSE-2.0 8 // 9 // Unless required by applicable law or agreed to in writing, software 10 // distributed under the License is distributed on an "AS IS" BASIS, 11 // WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. 12 // See the License for the specific language governing permissions and 13 // limitations under the License. 14 15 #include <cstddef> 16 17 #include <fuzzer/FuzzedDataProvider.h> 18 19 #include "spdlog/spdlog.h" 20 #include "spdlog/sinks/basic_file_sink.h" 21 LLVMFuzzerTestOneInput(const uint8_t * data,size_t size)22extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) { 23 static std::shared_ptr<spdlog::logger> my_logger; 24 if (!my_logger.get()) { 25 my_logger = spdlog::basic_logger_mt("basic_logger", "/dev/null"); 26 spdlog::set_default_logger(my_logger); 27 } 28 29 if (size == 0) { 30 return 0; 31 } 32 33 FuzzedDataProvider stream(data, size); 34 35 const uint16_t size_arg = stream.ConsumeIntegral<uint16_t>(); 36 37 spdlog::enable_backtrace(size_arg); 38 for(int i=0; i<size_arg; i++){ 39 spdlog::debug(stream.ConsumeRandomLengthString(size)); 40 } 41 spdlog::dump_backtrace(); 42 return 0; 43 } 44