/*

 Copyright (C) 2016 Apple Inc. All Rights Reserved.

 See LICENSE.txt for this sample’s licensing information

 Abstract:

 Basic demonstration of how to use the SystemConfiguration Reachablity APIs.

 */

#import <Foundation/Foundation.h>

#import <SystemConfiguration/SystemConfiguration.h>

#import <netinet/in.h>

typedef enum : NSInteger {

    NotReachable = 0,

    ReachableViaWiFi,

    ReachableViaWWAN

} NetworkStatus;

#pragma mark IPv6 Support

//Reachability fully support IPv6.  For full details, see ReadMe.md.

extern NSString *kReachabilityChangedNotification;

@interface Reachability : NSObject

/*!

 * Use to check the reachability of a given host name.

 */

+ (instancetype)reachabilityWithHostName:(NSString *)hostName;

/*!

 * Use to check the reachability of a given IP address.

 */

+ (instancetype)reachabilityWithAddress:(const struct sockaddr *)hostAddress;

/*!

 * Checks whether the default route is available. Should be used by applications that do not connect to a particular host.

 */

+ (instancetype)reachabilityForInternetConnection;

#pragma mark reachabilityForLocalWiFi

//reachabilityForLocalWiFi has been removed from the sample.  See ReadMe.md for more information.

//+ (instancetype)reachabilityForLocalWiFi;

/*!

 * Start listening for reachability notifications on the current run loop.

 */

- (BOOL)startNotifier;

- (void)stopNotifier;

- (NetworkStatus)currentReachabilityStatus;

/*!

 * WWAN may be available, but not active until a connection has been established. WiFi may require a connection for VPN on Demand.

 */

- (BOOL)connectionRequired;

@end