remove_invalid_hosts
remove_invalid_hosts(&($5.redirspec->host), &r.af);
remove_invalid_hosts(&($9.nat->host), &r.af);
remove_invalid_hosts(&($9.rdr->host), &r.af);
remove_invalid_hosts(&($4->host), &(filter_opts.nat->af));
remove_invalid_hosts(&($4->host), &(filter_opts.nat->af));
remove_invalid_hosts(&($6->host), &(filter_opts.rdr->af));
void remove_invalid_hosts(struct node_host **, sa_family_t *);
remove_invalid_hosts(&$9->host, &r.af);
remove_invalid_hosts(&$13->host, &binat.af);