IP_MULTICAST_TTL
if (option == IP_MULTICAST_TTL) {
if (option == IP_MULTICAST_TTL) {
SOCKET_OPTION_INFO_ENTRY(IPPROTO_IP, IP_MULTICAST_TTL),
if (setsockopt(ssend, IPPROTO_IP, IP_MULTICAST_TTL, &mttl,
sockopt_h = IP_MULTICAST_TTL;
const int sockopt_h = IP_MULTICAST_TTL;