glibc/support/xsignal.c

/* Error-checking wrapper for signal.
   Copyright (C) 2017-2019 Free Software Foundation, Inc.
   This file is part of the GNU C Library.

   The GNU C Library is free software; you can redistribute it and/or
   modify it under the terms of the GNU Lesser General Public
   License as published by the Free Software Foundation; either
   version 2.1 of the License, or (at your option) any later version.

   The GNU C Library is distributed in the hope that it will be useful,
   but WITHOUT ANY WARRANTY; without even the implied warranty of
   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
   Lesser General Public License for more details.

   You should have received a copy of the GNU Lesser General Public
   License along with the GNU C Library; if not, see
   <http://www.gnu.org/licenses/>.  */

#include <support/check.h>
#include <support/xsignal.h>

sighandler_t
xsignal (int sig, sighandler_t handler)
{
  sighandler_t result = signal (sig, handler);
  if (result == SIG_ERR)
    FAIL_EXIT1 ("signal (%d, %p): %m", sig, handler);
  return result;
}