Back to index

glibc  2.9
sigaction.c
Go to the documentation of this file.
00001 /* Copyright (C) 2002, 2003, 2005 Free Software Foundation, Inc.
00002    This file is part of the GNU C Library.
00003    Contributed by Ulrich Drepper <drepper@redhat.com>, 2002.
00004 
00005    The GNU C Library is free software; you can redistribute it and/or
00006    modify it under the terms of the GNU Lesser General Public
00007    License as published by the Free Software Foundation; either
00008    version 2.1 of the License, or (at your option) any later version.
00009 
00010    The GNU C Library is distributed in the hope that it will be useful,
00011    but WITHOUT ANY WARRANTY; without even the implied warranty of
00012    MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
00013    Lesser General Public License for more details.
00014 
00015    You should have received a copy of the GNU Lesser General Public
00016    License along with the GNU C Library; if not, write to the Free
00017    Software Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA
00018    02111-1307 USA.  */
00019 
00020 
00021 /* This is no complete implementation.  The file is meant to be
00022    included in the real implementation to provide the wrapper around
00023    __libc_sigaction.  */
00024 
00025 #include <nptl/pthreadP.h>
00026 
00027 /* We use the libc implementation but we tell it to not allow
00028    SIGCANCEL or SIGTIMER to be handled.  */
00029 #define LIBC_SIGACTION      1
00030 
00031 
00032 int
00033 __sigaction (sig, act, oact)
00034      int sig;
00035      const struct sigaction *act;
00036      struct sigaction *oact;
00037 {
00038   if (__builtin_expect (sig == SIGCANCEL || sig == SIGSETXID, 0))
00039     {
00040       __set_errno (EINVAL);
00041       return -1;
00042     }
00043 
00044   return __libc_sigaction (sig, act, oact);
00045 }
00046 libc_hidden_weak (__sigaction)
00047 weak_alias (__sigaction, sigaction)