Coverage Report

Created: 2025-07-18 06:19

/proc/self/cwd/test/fuzz.cpp
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Source (jump to first uncovered line)
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#include <cassert>
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#include <cxxopts.hpp>
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#include <fuzzer/FuzzedDataProvider.h>
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constexpr int kMaxOptions = 1024;
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constexpr int kMaxArgSize = 1024;
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enum class ParseableTypes
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{
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  kInt,
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  kString,
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  kVectorString,
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  kFloat,
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  kDouble,
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  // Marker for fuzzer.
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  kMaxValue,
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};
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template <typename T>
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void
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add_fuzzed_option(cxxopts::Options* options, FuzzedDataProvider* provider)
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22.0k
{
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22.0k
  assert(options);
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22.0k
  assert(provider);
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22.0k
  options->add_options()(provider->ConsumeRandomLengthString(kMaxArgSize),
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22.0k
                         provider->ConsumeRandomLengthString(kMaxArgSize),
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22.0k
                         cxxopts::value<T>());
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22.0k
}
void add_fuzzed_option<int>(cxxopts::Options*, FuzzedDataProvider*)
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Source
23
4.30k
{
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4.30k
  assert(options);
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4.30k
  assert(provider);
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4.30k
  options->add_options()(provider->ConsumeRandomLengthString(kMaxArgSize),
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4.30k
                         provider->ConsumeRandomLengthString(kMaxArgSize),
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4.30k
                         cxxopts::value<T>());
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4.30k
}
void add_fuzzed_option<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > >(cxxopts::Options*, FuzzedDataProvider*)
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Source
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3.80k
{
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3.80k
  assert(options);
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3.80k
  assert(provider);
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3.80k
  options->add_options()(provider->ConsumeRandomLengthString(kMaxArgSize),
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3.80k
                         provider->ConsumeRandomLengthString(kMaxArgSize),
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3.80k
                         cxxopts::value<T>());
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3.80k
}
void add_fuzzed_option<std::__1::vector<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> >, std::__1::allocator<std::__1::basic_string<char, std::__1::char_traits<char>, std::__1::allocator<char> > > > >(cxxopts::Options*, FuzzedDataProvider*)
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Count
Source
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5.43k
{
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5.43k
  assert(options);
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5.43k
  assert(provider);
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5.43k
  options->add_options()(provider->ConsumeRandomLengthString(kMaxArgSize),
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5.43k
                         provider->ConsumeRandomLengthString(kMaxArgSize),
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5.43k
                         cxxopts::value<T>());
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5.43k
}
void add_fuzzed_option<float>(cxxopts::Options*, FuzzedDataProvider*)
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Source
23
5.63k
{
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5.63k
  assert(options);
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5.63k
  assert(provider);
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5.63k
  options->add_options()(provider->ConsumeRandomLengthString(kMaxArgSize),
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5.63k
                         provider->ConsumeRandomLengthString(kMaxArgSize),
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5.63k
                         cxxopts::value<T>());
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5.63k
}
void add_fuzzed_option<double>(cxxopts::Options*, FuzzedDataProvider*)
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Count
Source
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2.88k
{
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2.88k
  assert(options);
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2.88k
  assert(provider);
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2.88k
  options->add_options()(provider->ConsumeRandomLengthString(kMaxArgSize),
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2.88k
                         provider->ConsumeRandomLengthString(kMaxArgSize),
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2.88k
                         cxxopts::value<T>());
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2.88k
}
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extern "C" int
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LLVMFuzzerTestOneInput(const uint8_t* data, size_t size)
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4.47k
{
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4.47k
  try
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4.47k
  {
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4.47k
    FuzzedDataProvider provider(data, size);
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    // Randomly generate a usage string.
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4.47k
    cxxopts::Options options(provider.ConsumeRandomLengthString(kMaxArgSize),
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4.47k
                             provider.ConsumeRandomLengthString(kMaxArgSize));
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    // Randomly generate a set of flags configurations.
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27.9k
    for (int i = 0; i < provider.ConsumeIntegralInRange<int>(0, kMaxOptions);
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23.4k
         i++)
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23.8k
    {
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23.8k
      switch (provider.ConsumeEnum<ParseableTypes>())
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23.8k
      {
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4.30k
      case ParseableTypes::kInt:
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4.30k
        add_fuzzed_option<int>(&options, &provider);
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4.30k
        break;
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3.80k
      case ParseableTypes::kString:
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3.80k
        add_fuzzed_option<std::string>(&options, &provider);
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3.80k
        break;
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5.43k
      case ParseableTypes::kVectorString:
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5.43k
        add_fuzzed_option<std::vector<std::string>>(&options, &provider);
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5.43k
        break;
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5.63k
      case ParseableTypes::kFloat:
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5.63k
        add_fuzzed_option<float>(&options, &provider);
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5.63k
        break;
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2.88k
      case ParseableTypes::kDouble:
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2.88k
        add_fuzzed_option<double>(&options, &provider);
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2.88k
        break;
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1.77k
      default:
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1.77k
        break;
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23.8k
      }
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23.8k
    }
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    // Sometimes allow unrecognised options.
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4.13k
    if (provider.ConsumeBool())
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1.22k
    {
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1.22k
      options.allow_unrecognised_options();
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1.22k
    }
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    // Sometimes allow trailing positional arguments.
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4.13k
    if (provider.ConsumeBool())
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1.18k
    {
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1.18k
      std::string positional_option_name =
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1.18k
        provider.ConsumeRandomLengthString(kMaxArgSize);
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1.18k
      options.add_options()(positional_option_name,
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1.18k
                            provider.ConsumeRandomLengthString(kMaxArgSize),
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1.18k
                            cxxopts::value<std::vector<std::string>>());
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1.18k
      options.parse_positional({positional_option_name});
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1.18k
    }
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    // Build command line input.
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4.13k
    const int argc = provider.ConsumeIntegralInRange<int>(1, kMaxOptions);
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4.13k
    std::vector<std::string> command_line_container;
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4.13k
    command_line_container.reserve(argc);
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4.13k
    std::vector<const char*> argv;
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4.13k
    argv.reserve(argc);
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976k
    for (int i = 0; i < argc; i++)
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972k
    {
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972k
      command_line_container.push_back(
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972k
        provider.ConsumeRandomLengthString(kMaxArgSize));
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972k
      argv.push_back(command_line_container[i].c_str());
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972k
    }
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    // Parse command line;
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4.13k
    auto result = options.parse(argc, argv.data());
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4.13k
  } catch (...)
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4.47k
  {
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936
  }
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4.47k
  return 0;
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4.47k
}