173   credits();

   173   credits();

   174 

   174 

   175   signal(SIGTERM, sig_handler);

   175   signal(SIGTERM, sig_handler);

   176   signal(SIGINT,  sig_handler);

   176   signal(SIGINT,  sig_handler);

   177   signal(SIGCHLD, sig_handler);

   177   signal(SIGCHLD, sig_handler);

   178 

   179 

   179   /* Parse command line options */

   180   /* Parse command line options */

   180   while (1) {

   181   while (1) {

   181     int c = getopt(argc, argv, "hf:");

   182     int c = getopt(argc, argv, "hf:");

   182     if (c == -1) {

   183     if (c == -1) {