(void) SIGNAL( SIGTERM, (void *) set_shutdown );
(void) SIGNAL( SIGINT, (void *) set_shutdown );
(void) SIGNAL( SIGHUP, (void *) set_shutdown );
(void) SIGNAL( SIGTERM, (void *) set_shutdown );
(void) SIGNAL( SIGINT, (void *) set_shutdown );
(void) SIGNAL( SIGHUP, (void *) set_shutdown );