Function PrintHelp

fuzz/libfuzzer/FuzzerDriver.cpp:100–125

static std::string *ProgName;

static void PrintHelp() {
  Printf("Usage:\n");
  auto Prog = ProgName->c_str();
  Printf("\nTo run fuzzing pass 0 or more directories.\n");
  Printf("%s [-flag1=val1 [-flag2=val2 ...] ] [dir1 [dir2 ...] ]\n", Prog);

  Printf("\nTo run individual tests without fuzzing pass 1 or more files:\n");
  Printf("%s [-flag1=val1 [-flag2=val2 ...] ] file1 [file2 ...]\n", Prog);

  Printf("\nFlags: (strictly in form -flag=value)\n");
  size_t MaxFlagLen = 0;
  for (size_t F = 0; F < kNumFlags; F++)
    MaxFlagLen = std::max(strlen(FlagDescriptions[F].Name), MaxFlagLen);

  for (size_t F = 0; F < kNumFlags; F++) {
    const auto &D = FlagDescriptions[F];
    if (strstr(D.Description, "internal flag") == D.Description) continue;
    Printf(" %s", D.Name);
    for (size_t i = 0, n = MaxFlagLen - strlen(D.Name); i < n; i++)
      Printf(" ");
    Printf("\t");
    Printf("%d\t%s\n", D.Default, D.Description);
  }
  Printf("\nFlags starting with '--' will be ignored and "
            "will be passed verbatim to subprocesses.\n");
}

static const char *FlagValue(const char *Param, const char *Name) {
  size_t Len = strlen(Name);