sigblock.c 1.2 KB

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  1. /* Copyright (C) 1991, 1994-1998, 2001-2002 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, write to the Free
  13. Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  14. 02111-1307 USA. */
  15. #include <errno.h>
  16. #include <signal.h>
  17. #include "sigset-cvt-mask.h"
  18. /* Block signals in MASK, returning the old mask. */
  19. int attribute_hidden __sigblock (int mask)
  20. {
  21. sigset_t set, oset;
  22. if (sigset_set_old_mask (&set, mask) < 0)
  23. return -1;
  24. if (__sigprocmask (SIG_BLOCK, &set, &oset) < 0)
  25. return -1;
  26. return sigset_get_old_mask (&oset);
  27. }
  28. strong_alias (__sigblock, sigblock)