46 lines
2.1 KiB
Swift
46 lines
2.1 KiB
Swift
// The MIT License (MIT)
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// Copyright © 2017 Ivan Vorobei (hello@ivanvorobei.by)
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//
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// Permission is hereby granted, free of charge, to any person obtaining a copy
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// of this software and associated documentation files (the "Software"), to deal
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// in the Software without restriction, including without limitation the rights
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// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
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// copies of the Software, and to permit persons to whom the Software is
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// furnished to do so, subject to the following conditions:
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//
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// The above copyright notice and this permission notice shall be included in all
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// copies or substantial portions of the Software.
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//
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// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
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// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
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// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
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// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
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// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
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// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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// SOFTWARE.
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import SystemConfiguration
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public struct SPInternetConnection {
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static var isOpen: Bool {
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var zeroAddress = sockaddr_in()
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zeroAddress.sin_len = UInt8(MemoryLayout.size(ofValue: zeroAddress))
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zeroAddress.sin_family = sa_family_t(AF_INET)
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let defaultRouteReachability = withUnsafePointer(to: &zeroAddress) {
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$0.withMemoryRebound(to: sockaddr.self, capacity: 1) {zeroSockAddress in
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SCNetworkReachabilityCreateWithAddress(nil, zeroSockAddress)
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}
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}
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var flags = SCNetworkReachabilityFlags()
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if !SCNetworkReachabilityGetFlags(defaultRouteReachability!, &flags) {
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return false
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}
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let isReachable = (flags.rawValue & UInt32(kSCNetworkFlagsReachable)) != 0
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let needsConnection = (flags.rawValue & UInt32(kSCNetworkFlagsConnectionRequired)) != 0
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return (isReachable && !needsConnection)
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}
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private init() {}
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}
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