- (void)getWifiInfo

 {

     NSArray *ifs = (__bridge_transfer NSArray *)CNCopySupportedInterfaces();

     if (!ifs) {

         return ;

     }

     NSDictionary *info = nil;

     for (NSString *ifnam in ifs) {

         info = (__bridge_transfer NSDictionary *)CNCopyCurrentNetworkInfo((__bridge CFStringRef)ifnam);

         if (info && [info count]) {

             break;

         }

     }

     NSLog(@"WIFI名称 %@    MAC地址 %@",info[@"SSID"],info[@"BSSID"]);

 }

 - (NSMutableDictionary *)getLocalInfoForCurrentWiFi {

     NSMutableDictionary *dict = [NSMutableDictionary dictionary];

     struct ifaddrs *interfaces = NULL;

     struct ifaddrs *temp_addr = NULL;

     int success = ;

     // retrieve the current interfaces - returns 0 on success

     success = getifaddrs(&interfaces);

     if (success == ) {

         // Loop through linked list of interfaces

         temp_addr = interfaces;

         //*/

         while(temp_addr != NULL) {

             if(temp_addr->ifa_addr->sa_family == AF_INET) {

                 // Check if interface is en0 which is the wifi connection on the iPhone

                 if([[NSString stringWithUTF8String:temp_addr->ifa_name] isEqualToString:@"en0"]) {

                     //----192.168.1.255 广播地址

                     NSString *broadcast = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_dstaddr)->sin_addr)];

                     if (broadcast) {

                         [dict setObject:broadcast forKey:@"broadcast"];

                     }

                     NSLog(@"broadcast address--%@",broadcast);

                     //--192.168.1.106 本机地址

                     NSString *localIp = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_addr)->sin_addr)];

                     if (localIp) {

                         [dict setObject:localIp forKey:@"localIp"];

                     }

                     NSLog(@"local device ip--%@",localIp);

                     //--255.255.255.0 子网掩码地址

                     NSString *netmask = [NSString stringWithUTF8String:inet_ntoa(((struct sockaddr_in *)temp_addr->ifa_netmask)->sin_addr)];

                     if (netmask) {

                         [dict setObject:netmask forKey:@"netmask"];

                     }

                     NSLog(@"netmask--%@",netmask);

                     //--en0 端口地址

                     NSString *interface = [NSString stringWithUTF8String:temp_addr->ifa_name];

                     if (interface) {

                         [dict setObject:interface forKey:@"interface"];

                     }

                     NSLog(@"interface--%@",interface);

                     return dict;

                 }

             }

             temp_addr = temp_addr->ifa_next;

         }

     }

     // Free memory

     freeifaddrs(interfaces);

     return dict;

 }