libpthread/nptl/sysdeps/pthread/pt-sigaction.c

   1 /* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
   4
   5    The GNU C Library is free software; you can redistribute it and/or
   6    modify it under the terms of the GNU Lesser General Public
   7    License as published by the Free Software Foundation; either
   8    version 2.1 of the License, or (at your option) any later version.
   9
  10    The GNU C Library is distributed in the hope that it will be useful,
  11    but WITHOUT ANY WARRANTY; without even the implied warranty of
  12    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  13    Lesser General Public License for more details.
  14
  15    You should have received a copy of the GNU Lesser General Public
  16    License along with the GNU C Library; if not, see
  17    <http://www.gnu.org/licenses/>.  */
  18
  19 #include <pthreadP.h>
  20 #include <signal.h>
  21
  22 /* We use the libc implementation but we tell it to not allow
  23    SIGCANCEL or SIGTIMER to be handled.  */
  24
  25 libc_hidden_proto(sigaction)
  26 extern __typeof(sigaction) __libc_sigaction;
  27 int
  28 sigaction (int sig, const struct sigaction *act, struct sigaction *oact)
  29 {
  30   if (unlikely (sig == SIGCANCEL || sig == SIGSETXID))
  31     {
  32       __set_errno (EINVAL);
  33       return -1;
  34     }
  35
  36   return __libc_sigaction (sig, act, oact);
  37 }
  38 libc_hidden_def(sigaction)