45 lines
1.3 KiB
Swift
45 lines
1.3 KiB
Swift
#if !os(Linux)
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import SystemConfiguration
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#endif
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/// Helper class providing the static helper method `isConnectedToNetwork()`
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internal class Reachability {
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enum ConnectivityStatus {
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case connected, disconnected, unknown
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}
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/// Returns whether the device is connected to a network, if known.
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/// On Linux, this always evaluates to `nil`.
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internal static var connectivityStatus: ConnectivityStatus {
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#if os(Linux)
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return .unknown
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#else
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var zeroAddress = sockaddr_in()
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zeroAddress.sin_len = UInt8(MemoryLayout<sockaddr_in>.size)
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zeroAddress.sin_family = sa_family_t(AF_INET)
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guard let defaultRouteReachability = withUnsafePointer(to: &zeroAddress, {
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$0.withMemoryRebound(to: sockaddr.self, capacity: 1) {
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SCNetworkReachabilityCreateWithAddress(nil, $0)
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}
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}) else {
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return .unknown
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}
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var flags: SCNetworkReachabilityFlags = []
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if !SCNetworkReachabilityGetFlags(defaultRouteReachability, &flags) {
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return .unknown
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}
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if flags.isEmpty {
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return .disconnected
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}
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let isReachable = flags.contains(.reachable)
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let needsConnection = flags.contains(.connectionRequired)
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return (isReachable && !needsConnection) ? .connected : .disconnected
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#endif
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}
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}
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