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)22 extern "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
34 FuzzedDataProvider stream(data, size);
35
36 const unsigned long size_arg = stream.ConsumeIntegral<unsigned long>();
37 const unsigned long int_arg = stream.ConsumeIntegral<unsigned long>();
38 const std::string string_arg = stream.ConsumeRandomLengthString(size);
39 const std::string format_string = stream.ConsumeRemainingBytesAsString();
40
41 spdlog::info(format_string.c_str(), size_arg, int_arg, string_arg);
42 spdlog::trace(format_string.c_str(), size_arg, int_arg, string_arg);
43 spdlog::debug(format_string.c_str(), size_arg, int_arg, string_arg);
44 spdlog::error(format_string.c_str(), size_arg, int_arg, string_arg);
45 spdlog::warn(format_string.c_str(), size_arg, int_arg, string_arg);
46 spdlog::critical(format_string.c_str(), size_arg, int_arg, string_arg);
47
48 SPDLOG_INFO(format_string.c_str(), size_arg, int_arg, string_arg);
49 SPDLOG_TRACE(format_string.c_str(), size_arg, int_arg, string_arg);
50 SPDLOG_DEBUG(format_string.c_str(), size_arg, int_arg, string_arg);
51 SPDLOG_ERROR(format_string.c_str(), size_arg, int_arg, string_arg);
52 SPDLOG_WARN(format_string.c_str(), size_arg, int_arg, string_arg);
53 SPDLOG_CRITICAL(format_string.c_str(), size_arg, int_arg, string_arg);
54
55 return 0;
56 }
57