71 lines
2.3 KiB
C++
71 lines
2.3 KiB
C++
// Copyright 2020 Google LLC
|
|
//
|
|
// Licensed under the Apache License, Version 2.0 (the "License");
|
|
// you may not use this file except in compliance with the License.
|
|
// You may obtain a copy of the License at
|
|
//
|
|
// http://www.apache.org/licenses/LICENSE-2.0
|
|
//
|
|
// Unless required by applicable law or agreed to in writing, software
|
|
// distributed under the License is distributed on an "AS IS" BASIS,
|
|
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
|
|
// See the License for the specific language governing permissions and
|
|
// limitations under the License.
|
|
|
|
#include <cstddef>
|
|
|
|
#include <fuzzer/FuzzedDataProvider.h>
|
|
|
|
#include "spdlog/spdlog.h"
|
|
#include "spdlog/sinks/basic_file_sink.h"
|
|
#include "spdlog/pattern_formatter.h"
|
|
|
|
|
|
std::string my_formatter_txt = "custom-flag";
|
|
|
|
class my_formatter_flag : public spdlog::custom_flag_formatter
|
|
{
|
|
|
|
public:
|
|
void format(const spdlog::details::log_msg &, const std::tm &, spdlog::memory_buf_t &dest) override
|
|
{
|
|
dest.append(my_formatter_txt.data(), my_formatter_txt.data() + my_formatter_txt.size());
|
|
}
|
|
|
|
std::unique_ptr<custom_flag_formatter> clone() const override
|
|
{
|
|
return spdlog::details::make_unique<my_formatter_flag>();
|
|
}
|
|
};
|
|
|
|
extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
|
|
if (size == 0) {
|
|
return 0;
|
|
}
|
|
|
|
static std::shared_ptr<spdlog::logger> my_logger;
|
|
if (!my_logger.get()) {
|
|
my_logger = spdlog::basic_logger_mt("basic_logger", "/dev/null");
|
|
spdlog::set_default_logger(my_logger);
|
|
}
|
|
|
|
FuzzedDataProvider stream(data, size);
|
|
|
|
const unsigned long size_arg = stream.ConsumeIntegral<unsigned long>();
|
|
const unsigned long int_arg = stream.ConsumeIntegral<unsigned long>();
|
|
const char flag = (char)(stream.ConsumeIntegral<char>());
|
|
const std::string pattern = stream.ConsumeRandomLengthString();
|
|
my_formatter_txt = stream.ConsumeRandomLengthString();
|
|
const std::string string_arg = stream.ConsumeRandomLengthString();
|
|
const std::string format_string = stream.ConsumeRemainingBytesAsString();
|
|
|
|
using spdlog::details::make_unique;
|
|
auto formatter = make_unique<spdlog::pattern_formatter>();
|
|
formatter->add_flag<my_formatter_flag>(flag).set_pattern(pattern);
|
|
spdlog::set_formatter(std::move(formatter));
|
|
|
|
spdlog::info(format_string.c_str(), size_arg, int_arg, string_arg);
|
|
|
|
return 0;
|
|
}
|