gist:4e8d467571680a3bf774

## gistfile1.m
#import <Foundation/Foundation.h>

#import <ifaddrs.h>
#import <net/if.h>
#import <SystemConfiguration/CaptiveNetwork.h>

@interface SMTWiFiStatus : NSObject

- (BOOL)       isWiFiEnabled;
- (BOOL)       isWiFiConnected;
- (NSString *) BSSID;
- (NSString *) SSID;

@end

@implementation SMTWiFiStatus

- (BOOL) isWiFiEnabled {

    NSCountedSet * cset = [NSCountedSet new];

    struct ifaddrs *interfaces;

    if( ! getifaddrs(&interfaces) ) {
        for( struct ifaddrs *interface = interfaces; interface; interface = interface->ifa_next) {
            if ( (interface->ifa_flags & IFF_UP) == IFF_UP ) {
                [cset addObject:[NSString stringWithUTF8String:interface->ifa_name]];
            }
        }
    }

    return [cset countForObject:@"awdl0"] > 1 ? YES : NO;
}

- (NSDictionary *) wifiDetails {
    return
        (__bridge NSDictionary *)
        CNCopyCurrentNetworkInfo(
            CFArrayGetValueAtIndex( CNCopySupportedInterfaces(), 0)
        );
}

- (BOOL) isWiFiConnected {
    return [self wifiDetails] == nil ? NO : YES;
}

- (NSString *) BSSID {
    return [self wifiDetails][@"BSSID"];
}

- (NSString *) SSID {
    return [self wifiDetails][@"SSID"];
}

@end