EX_NOHOST
errx(EX_NOHOST, "%s", gai_strerror(error));
errx(EX_NOHOST, "hostname ``%s'' unknown", av);
errx(EX_NOHOST, "hostname ``%s'' unknown", arg);
exit(EX_NOHOST);
return (EX_NOHOST);
error = EX_NOHOST;
errx(EX_NOHOST, "cannot resolve %s: %s",
errx(EX_NOHOST, "cannot resolve %s", target);
errx(EX_NOHOST, "cannot resolve %s: %s",
errx(EX_NOHOST, "cannot resolve %s: %s",
errx(EX_NOHOST, "cannot resolve %s: %s",
errx(EX_NOHOST, "cannot resolve %s", target);
errx(EX_NOHOST, "bad address: %s", str);
errx(EX_NOHOST, "bad mask length: %s", q + 1);
errx(EX_NOHOST,
errx(EX_NOHOST, "bad address: %s", str);
errx(EX_NOHOST, "cannot resolve hostname: %s", *argv);
err(EX_NOHOST, "%s: %s", host, gai_strerror(error));
exit(EX_NOHOST);
errx((errno == EPERM) ? EX_NOPERM : EX_NOHOST,