Tidy up str to gostr conversion
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65e273c74b
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@ -87,14 +87,10 @@ class PacketTunnelProvider: NEPacketTunnelProvider {
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if path.status == .satisfied {
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wg_log(.debug, message: "Network change detected, re-establishing sockets and IPs: \(path.availableInterfaces)")
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let endpointString = packetTunnelSettingsGenerator.endpointUapiConfiguration(currentListenPort: wgGetListenPort(handle))
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let err = endpointString.withCString {
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wgSetConfig(handle, gostring_t(p: $0, n: endpointString.utf8.count))
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}
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let err = withStringsAsGoStrings(endpointString, call: { return wgSetConfig(handle, $0.0) })
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if err == -EADDRINUSE {
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let endpointString = packetTunnelSettingsGenerator.endpointUapiConfiguration(currentListenPort: 0)
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_ = endpointString.withCString {
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wgSetConfig(handle, gostring_t(p: $0, n: endpointString.utf8.count))
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}
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_ = withStringsAsGoStrings(endpointString, call: { return wgSetConfig(handle, $0.0) })
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}
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}
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}
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@ -158,18 +154,14 @@ class PacketTunnelProvider: NEPacketTunnelProvider {
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}
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private func connect(interfaceName: String, settings: String, fileDescriptor: Int32) -> Int32 {
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return withStringsAsGoStrings(interfaceName, settings) { nameGoStr, settingsGoStr in
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return wgTurnOn(nameGoStr, settingsGoStr, fileDescriptor)
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}
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return withStringsAsGoStrings(interfaceName, settings) { return wgTurnOn($0.0, $0.1, fileDescriptor) }
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}
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}
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private func withStringsAsGoStrings<R>(_ str1: String, _ str2: String, closure: (gostring_t, gostring_t) -> R) -> R {
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return str1.withCString { s1cStr in
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let gstr1 = gostring_t(p: s1cStr, n: str1.utf8.count)
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return str2.withCString { s2cStr in
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let gstr2 = gostring_t(p: s2cStr, n: str2.utf8.count)
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return closure(gstr1, gstr2)
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}
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// swiftlint:disable large_tuple
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func withStringsAsGoStrings<R>(_ s1: String, _ s2: String? = nil, _ s3: String? = nil, _ s4: String? = nil, call: @escaping ((gostring_t, gostring_t, gostring_t, gostring_t)) -> R) -> R {
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func helper(_ p1: UnsafePointer<Int8>?, _ p2: UnsafePointer<Int8>?, _ p3: UnsafePointer<Int8>?, _ p4: UnsafePointer<Int8>?) -> R {
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return call((gostring_t(p: p1, n: s1.utf8.count), gostring_t(p: p2, n: s2?.utf8.count ?? 0), gostring_t(p: p3, n: s3?.utf8.count ?? 0), gostring_t(p: p4, n: s4?.utf8.count ?? 0)))
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}
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return helper(s1, s2, s3, s4)
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}
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