signal/sigaction.c

   1 /* Copyright (C) 1991, 1995, 1996, 1997, 2002 Free Software Foundation, Inc.
   2    This file is part of the GNU C Library.
   3
   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
   9    The GNU C Library is distributed in the hope that it will be useful,
  10    but WITHOUT ANY WARRANTY; without even the implied warranty of
  11    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  12    Lesser General Public License for more details.
  13
  14    You should have received a copy of the GNU Lesser General Public
  15    License along with the GNU C Library; if not, write to the Free
  16    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
  17    02111-1307 USA.  */
  18
  19 #include <errno.h>
  20 #include <signal.h>
  21
  22
  23 /* If ACT is not NULL, change the action for SIG to *ACT.
  24    If OACT is not NULL, put the old action for SIG in *OACT.  */
  25 int
  26 __sigaction (sig, act, oact)
  27      int sig;
  28      const struct sigaction *act;
  29      struct sigaction *oact;
  30 {
  31   if (sig <= 0 || sig >= NSIG)
  32     {
  33       __set_errno (EINVAL);
  34       return -1;
  35     }
  36
  37   __set_errno (ENOSYS);
  38   return -1;
  39 }
  40 libc_hidden_def (__sigaction)
  41 stub_warning (sigaction)
  42
  43 weak_alias (__sigaction, sigaction)
  44 #include <stub-tag.h>