MRT_ADD_VIF
if (setsockopt(s, IPPROTO_IP, MRT_ADD_VIF, &vif, sizeof(vif)) == -1)
if (setsockopt(s, IPPROTO_IP, MRT_ADD_VIF, &vif, sizeof(vif)) == -1)
case MRT_ADD_VIF:
case MRT_ADD_VIF:
if (setsockopt(fd, IPPROTO_IP, MRT_ADD_VIF, &vc,
if (setsockopt(igmp_socket, IPPROTO_IP, MRT_ADD_VIF,