26 lines
535 B
Go
26 lines
535 B
Go
//go:build darwin || freebsd
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// +build darwin freebsd
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/* SPDX-License-Identifier: MIT
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*
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* Copyright (C) 2017-2021 WireGuard LLC. All Rights Reserved.
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*/
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package tun
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import (
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"fmt"
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)
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func (tun *NativeTun) operateOnFd(fn func(fd uintptr)) {
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sysconn, err := tun.tunFile.SyscallConn()
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if err != nil {
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tun.errors <- fmt.Errorf("unable to find sysconn for tunfile: %s", err.Error())
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return
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}
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err = sysconn.Control(fn)
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if err != nil {
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tun.errors <- fmt.Errorf("unable to control sysconn for tunfile: %s", err.Error())
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}
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}
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