updwtmp.c 1.4 KB

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  1. /* Copyright (C) 1998-2019 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. Contributed by Mark Kettenis <kettenis@phys.uva.nl>, 1998.
  4. The GNU C Library 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. The GNU C Library is distributed in the hope that it will be useful,
  9. but WITHOUT ANY WARRANTY; without even the implied warranty of
  10. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  11. Lesser General Public License for more details.
  12. You should have received a copy of the GNU Lesser General Public
  13. License along with the GNU C Library; if not, see
  14. <http://www.gnu.org/licenses/>. */
  15. #include <string.h>
  16. #include <unistd.h>
  17. #define TRANSFORM_UTMP_FILE_NAME(file_name) \
  18. ((strcmp (file_name, _PATH_UTMP) == 0 \
  19. && __access (_PATH_UTMP "x", F_OK) == 0) ? (_PATH_UTMP "x") : \
  20. ((strcmp (file_name, _PATH_WTMP) == 0 \
  21. && __access ( _PATH_WTMP "x", F_OK) == 0) ? (_PATH_WTMP "x") : \
  22. ((strcmp (file_name, _PATH_UTMP "x") == 0 \
  23. && __access (_PATH_UTMP "x", F_OK) != 0) ? _PATH_UTMP : \
  24. ((strcmp (file_name, _PATH_WTMP "x") == 0 \
  25. && __access (_PATH_WTMP "x", F_OK) != 0) ? _PATH_WTMP : \
  26. file_name))))
  27. #include <login/updwtmp.c>