Get Mac address of client connected with esp8266

I turned my esp8266 as an access point, so that the mobile devices could connect to it. Want to get the macAddress of the devices connected to it. How could I get it?

I got the answer from here

and it works

#include <ESP8266WiFi.h>
#include <ESP8266WebServer.h>

extern "C" {
  #include<user_interface.h>
}

/* configuration  wifi */
const char *ssid = "COblaster";

ESP8266WebServer server(80);

void handleRoot() { 
    server.send(200, "text/html", "<h1>You are connected</h1>");
    String addy = server.client().remoteIP().toString();
    Serial.println(addy);
}

void setup() {
    delay(1000);
    Serial.begin(115200);
    Serial.println();
    Serial.print("Configuring access point...");
    WiFi.softAP(ssid);
    IPAddress myIP = WiFi.softAPIP();
    Serial.print("AP IP address: ");
    Serial.println(myIP);
    server.on("/", handleRoot);
    server.begin();
    Serial.println("HTTP server started");  
}
 
void loop() {
    server.handleClient();    
    delay(5000);
    client_status();
    delay(4000);
}

void client_status() {
    unsigned char number_client;
    struct station_info *stat_info;

    struct ip_addr *IPaddress;
    IPAddress address;
    int i=1;

    number_client= wifi_softap_get_station_num();
    stat_info = wifi_softap_get_station_info();

    Serial.print(" Total connected_client are = ");
    Serial.println(number_client);

    while (stat_info != NULL) {
        IPaddress = &stat_info->ip;
        address = IPaddress->addr;

        Serial.print("client= ");

        Serial.print(i);
        Serial.print(" ip adress is = ");
        Serial.print((address));
        Serial.print(" with mac adress is = ");

        Serial.print(stat_info->bssid[0],HEX);
        Serial.print(stat_info->bssid[1],HEX);
        Serial.print(stat_info->bssid[2],HEX);
        Serial.print(stat_info->bssid[3],HEX);
        Serial.print(stat_info->bssid[4],HEX);
        Serial.print(stat_info->bssid[5],HEX);

        stat_info = STAILQ_NEXT(stat_info, next);
        i++;
        Serial.println();
    }
    delay(500);
}