if_is_pp2
int is_pp2 = if_is_pp2(ifname, port, proxy_protocol_port);
int if_is_pp2(const char* ifname, int default_port,
int is_pp2 = if_is_pp2(ifname, port, proxy_protocol_port);
if(if_is_pp2(resif[i][0], cfg->port, cfg->proxy_protocol_port)) {
int if_is_pp2(const char* ifname, int default_port,