setegid.c 1.2 KB

1234567891011121314151617181920212223242526272829303132333435363738394041
  1. /* Copyright (C) 1998-2019 Free Software Foundation, Inc.
  2. This file is part of the GNU C Library.
  3. The GNU C Library is free software; you can redistribute it and/or
  4. modify it under the terms of the GNU Lesser General Public
  5. License as published by the Free Software Foundation; either
  6. version 2.1 of the License, or (at your option) any later version.
  7. The GNU C Library is distributed in the hope that it will be useful,
  8. but WITHOUT ANY WARRANTY; without even the implied warranty of
  9. MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
  10. Lesser General Public License for more details.
  11. You should have received a copy of the GNU Lesser General Public
  12. License along with the GNU C Library; if not, see
  13. <http://www.gnu.org/licenses/>. */
  14. #include <errno.h>
  15. #include <unistd.h>
  16. #include <setxid.h>
  17. int
  18. setegid (gid_t gid)
  19. {
  20. int result;
  21. if (gid == (gid_t) ~0)
  22. return INLINE_SYSCALL_ERROR_RETURN_VALUE (EINVAL);
  23. #ifdef __NR_setresgid32
  24. result = INLINE_SETXID_SYSCALL (setresgid32, 3, -1, gid, -1);
  25. #else
  26. result = INLINE_SETXID_SYSCALL (setresgid, 3, -1, gid, -1);
  27. #endif
  28. return result;
  29. }
  30. #ifndef setegid
  31. libc_hidden_def (setegid)
  32. #endif