_php_mcast_join_leave   54 ext/sockets/multicast.c static int _php_mcast_join_leave(php_socket *sock, int level, struct sockaddr *group, socklen_t group_len, unsigned int if_index, int join);
_php_mcast_join_leave  388 ext/sockets/multicast.c 	return _php_mcast_join_leave(sock, level, group, group_len, if_index, 1);
_php_mcast_join_leave  398 ext/sockets/multicast.c 	return _php_mcast_join_leave(sock, level, group, group_len, if_index, 0);