int
main(int argc, char **argv)
{
if ( argc != 2 ) {
printf("Usage: %s <hostname>\n",argv[0]);
exit(1);
}
char *_h = argv[1];
get_addr4(_h);
get_addr6(_h);
printf("isabel_gethostbyname:: address failed. Host: [%s]\n", _h);
exit(1);
}
static int mcast4opt_add_membership(struct netsocket_config *cfg)
{
struct ip_mreq mreq;
mreq.imr_multiaddr = *get_addr4(bound_address);
if (cfg->in_interface) {
if (str_to_addr4(cfg->in_interface, &mreq.imr_interface))
return 1;
} else {
mreq.imr_interface.s_addr = htonl(INADDR_ANY);
}
if (setsockopt(sk, IPPROTO_IP, IP_ADD_MEMBERSHIP, &mreq,
sizeof(mreq))) {
log_perror("-> setsockopt(IP_ADD_MEMBERSHIP) failed", errno);
return 1;
}
log_info("-> We're now registered to the multicast group.");
return 0;
}
