if_req 716 ext/sockets/multicast.c struct ifreq if_req; if_req 728 ext/sockets/multicast.c if_req.ifr_ifindex = if_index; if_req 729 ext/sockets/multicast.c if (ioctl(php_sock->bsd_socket, SIOCGIFNAME, &if_req) == -1) { if_req 731 ext/sockets/multicast.c if (if_indextoname(if_index, if_req.ifr_name) == NULL) { if_req 740 ext/sockets/multicast.c if (ioctl(php_sock->bsd_socket, SIOCGIFADDR, &if_req) == -1) { if_req 746 ext/sockets/multicast.c memcpy(out_addr, &((struct sockaddr_in *) &if_req.ifr_addr)->sin_addr,