Hi , would it be possible to prevent the seeds from returning IPV6, My compu/ ISP fails all ipv6 addresses.

clist *bu_dns_lookup(clist *l, const char *seedname, unsigned int def_port)
{
        struct addrinfo hints, *res;

        memset(&hints, 0, sizeof(hints));
        /*hints.ai_family = AF_UNSPEC;*/   
        hints.ai_family = AF_INET;
        hints.ai_socktype = SOCK_STREAM;
        hints.ai_flags = AI_CANONNAME;

        if (getaddrinfo(seedname, NULL, &hints, &res))
                return l;

        struct addrinfo *rp;
        printf("canon-name:%s\n", res->ai_canonname);
        for (rp = res; rp != NULL; rp = rp->ai_next){
                l = add_seed_addr(l, rp, def_port);
        }

        freeaddrinfo(res);

        return l;
}