sigaction(SIGTERM, &action, (struct sigaction *) NULL);
sigaction(SIGINT, &action, (struct sigaction *) NULL);
sigaction(SIGHUP, &action, (struct sigaction *) NULL);
sigaction(SIGTERM, &action, (struct sigaction *) NULL);
sigaction(SIGINT, &action, (struct sigaction *) NULL);
sigaction(SIGHUP, &action, (struct sigaction *) NULL);