utf_string_conversions_fuzzer.cc 2.2 KB

12345678910111213141516171819202122232425262728293031323334353637383940414243444546474849505152535455565758
  1. // Copyright 2018 The Chromium Authors. All rights reserved.
  2. // Use of this source code is governed by a BSD-style license that can be
  3. // found in the LICENSE file.
  4. #include <tuple>
  5. #include "base/strings/string_util.h"
  6. #include "base/strings/utf_string_conversions.h"
  7. std::string output_std_string;
  8. std::wstring output_std_wstring;
  9. std::u16string output_string16;
  10. // Entry point for LibFuzzer.
  11. extern "C" int LLVMFuzzerTestOneInput(const uint8_t* data, size_t size) {
  12. base::StringPiece string_piece_input(reinterpret_cast<const char*>(data),
  13. size);
  14. std::ignore = base::UTF8ToWide(string_piece_input);
  15. base::UTF8ToWide(reinterpret_cast<const char*>(data), size,
  16. &output_std_wstring);
  17. std::ignore = base::UTF8ToUTF16(string_piece_input);
  18. base::UTF8ToUTF16(reinterpret_cast<const char*>(data), size,
  19. &output_string16);
  20. // Test for char16_t.
  21. if (size % 2 == 0) {
  22. base::StringPiece16 string_piece_input16(
  23. reinterpret_cast<const char16_t*>(data), size / 2);
  24. std::ignore = base::UTF16ToWide(output_string16);
  25. base::UTF16ToWide(reinterpret_cast<const char16_t*>(data), size / 2,
  26. &output_std_wstring);
  27. std::ignore = base::UTF16ToUTF8(string_piece_input16);
  28. base::UTF16ToUTF8(reinterpret_cast<const char16_t*>(data), size / 2,
  29. &output_std_string);
  30. }
  31. // Test for wchar_t.
  32. size_t wchar_t_size = sizeof(wchar_t);
  33. if (size % wchar_t_size == 0) {
  34. std::ignore = base::WideToUTF8(output_std_wstring);
  35. base::WideToUTF8(reinterpret_cast<const wchar_t*>(data),
  36. size / wchar_t_size, &output_std_string);
  37. std::ignore = base::WideToUTF16(output_std_wstring);
  38. base::WideToUTF16(reinterpret_cast<const wchar_t*>(data),
  39. size / wchar_t_size, &output_string16);
  40. }
  41. // Test for ASCII. This condition is needed to avoid hitting instant CHECK
  42. // failures.
  43. if (base::IsStringASCII(string_piece_input)) {
  44. output_string16 = base::ASCIIToUTF16(string_piece_input);
  45. base::StringPiece16 string_piece_input16(output_string16);
  46. std::ignore = base::UTF16ToASCII(string_piece_input16);
  47. }
  48. return 0;
  49. }