Function FuzzerDriver

fuzz/libfuzzer/FuzzerDriver.cpp:652–971

}

int FuzzerDriver(int *argc, char ***argv, UserCallback Callback) {
  using namespace fuzzer;
  assert(argc && argv && "Argument pointers cannot be nullptr");
  std::string Argv0((*argv)[0]);
  EF = new ExternalFunctions();
  if (EF->LLVMFuzzerInitialize)
    EF->LLVMFuzzerInitialize(argc, argv);
  if (EF->__msan_scoped_disable_interceptor_checks)
    EF->__msan_scoped_disable_interceptor_checks();
  const std::vector<std::string> Args(*argv, *argv + *argc);
  assert(!Args.empty());
  ProgName = new std::string(Args[0]);
  if (Argv0 != *ProgName) {
    Printf("ERROR: argv[0] has been modified in LLVMFuzzerInitialize\n");
    exit(1);
  }
  ParseFlags(Args, EF);
  if (Flags.help) {
    PrintHelp();
    return 0;
  }

  if (Flags.close_fd_mask & 2)
    DupAndCloseStderr();
  if (Flags.close_fd_mask & 1)
    CloseStdout();

  if (Flags.jobs > 0 && Flags.workers == 0) {
    Flags.workers = std::min(NumberOfCpuCores() / 2, Flags.jobs);
    if (Flags.workers > 1)
      Printf("Running %u workers\n", Flags.workers);
  }

  if (Flags.workers > 0 && Flags.jobs > 0)
    return RunInMultipleProcesses(Args, Flags.workers, Flags.jobs);

  FuzzingOptions Options;
  Options.Verbosity = Flags.verbosity;
  Options.MaxLen = Flags.max_len;
  Options.LenControl = Flags.len_control;
  Options.KeepSeed = Flags.keep_seed;
  Options.UnitTimeoutSec = Flags.timeout;
  Options.ErrorExitCode = Flags.error_exitcode;
  Options.TimeoutExitCode = Flags.timeout_exitcode;
  Options.IgnoreTimeouts = Flags.ignore_timeouts;
  Options.IgnoreOOMs = Flags.ignore_ooms;
  Options.IgnoreCrashes = Flags.ignore_crashes;
  Options.MaxTotalTimeSec = Flags.max_total_time;
  Options.DoCrossOver = Flags.cross_over;
  Options.CrossOverUniformDist = Flags.cross_over_uniform_dist;
  Options.MutateDepth = Flags.mutate_depth;
  Options.ReduceDepth = Flags.reduce_depth;
  Options.UseCounters = Flags.use_counters;
  Options.UseMemmem = Flags.use_memmem;
  Options.UseCmp = Flags.use_cmp;
  Options.UseValueProfile = Flags.use_value_profile;
  Options.Shrink = Flags.shrink;
  Options.ReduceInputs = Flags.reduce_inputs;