open.c 1.3 KB

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  1. /* -*-comment-start: "//";comment-end:""-*-
  2. * GNU Mes --- Maxwell Equations of Software
  3. * Copyright © 2016,2017,2018,2019 Jan (janneke) Nieuwenhuizen <janneke@gnu.org>
  4. *
  5. * This file is part of GNU Mes.
  6. *
  7. * GNU Mes is free software; you can redistribute it and/or modify it
  8. * under the terms of the GNU General Public License as published by
  9. * the Free Software Foundation; either version 3 of the License, or (at
  10. * your option) any later version.
  11. *
  12. * GNU Mes is distributed in the hope that it will be useful, but
  13. * WITHOUT ANY WARRANTY; without even the implied warranty of
  14. * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
  15. * GNU General Public License for more details.
  16. *
  17. * You should have received a copy of the GNU General Public License
  18. * along with GNU Mes. If not, see <http://www.gnu.org/licenses/>.
  19. */
  20. #include <mes/lib.h>
  21. #include <fcntl.h>
  22. #include <stdarg.h>
  23. int
  24. _open2 (char const *file_name, int flags)
  25. {
  26. int mask = 0777;
  27. return _open3 (file_name, flags, mask);
  28. }
  29. int
  30. open (char const *file_name, int flags, ...)
  31. {
  32. if (flags & O_CREAT)
  33. {
  34. va_list ap;
  35. va_start (ap, flags);
  36. int mask = va_arg (ap, int);
  37. int r = _open3 (file_name, flags, mask);
  38. va_end (ap);
  39. return r;
  40. }
  41. else
  42. return _open2 (file_name, flags);
  43. }