EX_OSERR
err(EX_OSERR, "ssend socket");
err(EX_OSERR, "srecv socket");
err(EX_OSERR, "setsockopt IP_OPTIONS");
err(EX_OSERR, "setsockopt IP_TTL");
err(EX_OSERR, "setsockopt IP_MULTICAST_LOOP");
err(EX_OSERR, "setsockopt IP_MULTICAST_TTL");
err(EX_OSERR, "setsockopt IP_MULTICAST_IF");
err(EX_OSERR, "setsockopt SO_TIMESTAMP");
err(EX_OSERR, "setsockopt SO_TS_CLOCK");
err(EX_OSERR, "sigaction SIGINT");
err(EX_OSERR, "sigaction SIGINFO");
err(EX_OSERR, "sigaction SIGALRM");
errx(EX_OSERR, "descriptor too large");
err(EX_OSERR, "sigaction SIGINT");
err(EX_OSERR, "sigaction SIGINFO");
err(EX_OSERR, "sigaction SIGALRM");
exit(EX_OSERR);