Function ParseDrive

fuzz/libfuzzer/FuzzerIOWindows.cpp:247–258

Parse disk designators, like "C:\". If Relative == true, also accepts: "C:". Returns number of characters considered if successful.

// Parse disk designators, like "C:\". If Relative == true, also accepts: "C:".
// Returns number of characters considered if successful.
static size_t ParseDrive(const std::string &FileName, const size_t Offset,
                         bool Relative = true) {
  if (Offset + 1 >= FileName.size() || FileName[Offset + 1] != ':')
    return 0;
  if (Offset + 2 >= FileName.size() || !IsSeparator(FileName[Offset + 2])) {
    if (!Relative) // Accept relative path?
      return 0;
    else
      return 2;
  }
  return 3;
}

// Parse a file name, like: SomeFile.txt
// Returns number of characters considered if successful.