Get Wifi network information in Objective-C

NetworkInfo.m

/** Returns first non-empty SSID network info dictionary.
 *  @see CNCopyCurrentNetworkInfo 
 * remember to import this:
 * @import SystemConfiguration.CaptiveNetwork;
 **/
 
+ (id)fetchSSIDInfo {
    NSArray *ifs = (__bridge_transfer NSArray *)CNCopySupportedInterfaces();
    //NSLog(@"Supported interfaces: %@", ifs);
    NSDictionary *info;
    for (NSString *ifnam in ifs) {
        info = (__bridge_transfer NSDictionary *)CNCopyCurrentNetworkInfo((__bridge CFStringRef)ifnam);
        //NSLog(@"%@ => %@", ifnam, info);
        if (info && [info count]) { break; }
    }
    return info;
}