133   if (res < 0) perror_exit("setsockopt ttl %d", ttl);  in send_probe4()
138   if (res != len) perror_exit(" sendto");  in send_probe4()
158     perror_exit("sendto");  in send_probe6()
165           &set, sizeof(set)) < 0)) perror_exit("SO_DEBUG failed ");  in set_flag_dr()
168           &set, sizeof(set)) < 0)) perror_exit("SO_DONTROUTE failed ");  in set_flag_dr()
238           if (errno != EINTR) perror_exit("poll");  in do_trace()
524           sizeof(two)) < 0)  perror_exit("setsockopt RAW_CHECKSUM");  in traceroute_main()
555         perror_exit("LSRR IP_OPTIONS");  in traceroute_main()
560         sizeof(TT.msg_len)) < 0) perror_exit("SO_SNDBUF failed ");  in traceroute_main()
565       perror_exit("IP_TOS %ld failed ", TT.tos);  in traceroute_main()
570                     sizeof(set)) < 0)) perror_exit("IP_DONTFRAG failed ");  in traceroute_main()
573         sizeof(TT.tos)) < 0) perror_exit("IPV6_TCLASS %ld failed ", TT.tos);  in traceroute_main()
589         perror_exit("can't set multicast source interface");  in traceroute_main()
591             sizeof(struct sockaddr_in)) < 0) perror_exit("bind");  in traceroute_main()
621         perror_exit("can't connect to remote host");  in traceroute_main()
627             sizeof(struct sockaddr_in6))) perror_exit("bind");  in traceroute_main()
629             sizeof(struct sockaddr_in6))) perror_exit("bind");  in traceroute_main()