php_add4_to_if_index  671 ext/sockets/multicast.c int php_add4_to_if_index(struct in_addr *addr, php_socket *php_sock, unsigned *if_index)
php_add4_to_if_index  755 ext/sockets/multicast.c int php_add4_to_if_index(struct in_addr *addr, php_socket *php_sock, unsigned *if_index)