fopen_utf8.h 2.0 KB

123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172
  1. /*
  2. * This file is part of FFmpeg.
  3. *
  4. * FFmpeg is free software; you can redistribute it and/or
  5. * modify it under the terms of the GNU Lesser General Public
  6. * License as published by the Free Software Foundation; either
  7. * version 2.1 of the License, or (at your option) any later version.
  8. *
  9. * FFmpeg is distributed in the hope that it will be useful,
  10. * but WITHOUT ANY WARRANTY; without even the implied warranty of
  11. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  12. * Lesser General Public License for more details.
  13. *
  14. * You should have received a copy of the GNU Lesser General Public
  15. * License along with FFmpeg; if not, write to the Free Software
  16. * Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
  17. */
  18. #ifndef FFTOOLS_FOPEN_UTF8_H
  19. #define FFTOOLS_FOPEN_UTF8_H
  20. #include <stdio.h>
  21. /* The fopen_utf8 function here is essentially equivalent to avpriv_fopen_utf8,
  22. * except that it doesn't set O_CLOEXEC, and that it isn't exported
  23. * from a different library. (On Windows, each DLL might use a different
  24. * CRT, and FILE* handles can't be shared across them.) */
  25. #ifdef _WIN32
  26. #include "libavutil/mem.h"
  27. #include "libavutil/wchar_filename.h"
  28. static inline FILE *fopen_utf8(const char *path_utf8, const char *mode)
  29. {
  30. wchar_t *path_w, *mode_w;
  31. FILE *f;
  32. /* convert UTF-8 to wide chars */
  33. if (get_extended_win32_path(path_utf8, &path_w)) /* This sets errno on error. */
  34. return NULL;
  35. if (!path_w)
  36. goto fallback;
  37. if (utf8towchar(mode, &mode_w))
  38. return NULL;
  39. if (!mode_w) {
  40. /* If failing to interpret the mode string as utf8, it is an invalid
  41. * parameter. */
  42. av_freep(&path_w);
  43. errno = EINVAL;
  44. return NULL;
  45. }
  46. f = _wfopen(path_w, mode_w);
  47. av_freep(&path_w);
  48. av_freep(&mode_w);
  49. return f;
  50. fallback:
  51. /* path may be in CP_ACP */
  52. return fopen(path_utf8, mode);
  53. }
  54. #else
  55. static inline FILE *fopen_utf8(const char *path, const char *mode)
  56. {
  57. return fopen(path, mode);
  58. }
  59. #endif
  60. #endif /* FFTOOLS_FOPEN_UTF8_H */