withUnsafePointer in Swift 2

Question

I\'m trying to check if the user has internet connection, and part of the process involves invoking withUnsafePointer. In Swift 1.x, I was able to use:

Answer 1

Swift 3:

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)
    }
})