add_open
if(!add_open(rc, cfg, p->address, cfg->control_port, 1)) {
if(cfg->do_ip6 && !add_open(rc, cfg, "::1", cfg->control_port, 0)) {
!add_open(rc, cfg, "127.0.0.1", cfg->control_port, 1)) {
if(!add_open(rcif[i], cfg->control_port, &l, 1, cfg)) {
!add_open("::1", cfg->control_port, &l, 0, cfg)) {
!add_open("127.0.0.1", cfg->control_port, &l, 1, cfg)) {