/* Error-checking wrapper for signal. Copyright (C) 2017-2021 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 <https://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; }