Simple Wi-Fi check for iOS

localWiFiAvailable

#import <arpa/inet.h>
#import <ifaddrs.h>
#import <net/if.h>

BOOL localWiFiAvailable( void )
{
    struct ifaddrs *addresses;
    struct ifaddrs *cursor;
    BOOL wiFiAvailable = NO;

    if (getifaddrs(&addresses) != 0) return NO;
	
    cursor = addresses;
    while (cursor != NULL) {
        if (cursor->ifa_addr->sa_family == AF_INET && !(cursor->ifa_flags & IFF_LOOPBACK))
        {
			// Check for WiFi adapter
			if (strcmp(cursor->ifa_name, "en0") == 0) 
			{
				wiFiAvailable = YES;
				break;
			}
        }
        cursor = cursor -> ifa_next;
    }

    freeifaddrs(addresses);
    return wiFiAvailable;
}