Ham check Internet

import Foundation

import SystemConfiguration

func isInternetAvailable() -> Bool

{

    var zeroAddress = sockaddr_in()

    zeroAddress.sin_len = UInt8(MemoryLayout.size(ofValue: zeroAddress))

    zeroAddress.sin_family = sa_family_t(AF_INET)

    

    let defaultRouteReachability = withUnsafePointer(to: &zeroAddress) {

        $0.withMemoryRebound(to: sockaddr.self, capacity: 1) {zeroSockAddress in

            SCNetworkReachabilityCreateWithAddress(nil, zeroSockAddress)

        }

    }

    

    var flags = SCNetworkReachabilityFlags()

    if !SCNetworkReachabilityGetFlags(defaultRouteReachability!, &flags) {

        return false

    }

    let isReachable = flags.contains(.reachable)

    let needsConnection = flags.contains(.connectionRequired)

    return (isReachable && !needsConnection)

}