sscanf(delim, "%i", &l) == 0 || l > 128 ||
inet_pton(AF_INET6, astr, &iface->pio_filter_addr) == 0) {
iface->pio_filter_length = 0;
sscanf(delim, "%i", &l) == 0 || l > 128 ||
inet_pton(AF_INET6, astr, &iface->pio_filter_addr) == 0) {
iface->pio_filter_length = 0;