45 lines
795 B
Go
45 lines
795 B
Go
/* SPDX-License-Identifier: MIT
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*
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* Copyright (C) 2017-2020 WireGuard LLC. All Rights Reserved.
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*/
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package device
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import "errors"
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func (device *Device) PeekLookAtSocketFd4() (fd int, err error) {
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nb, ok := device.net.bind.(*nativeBind)
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if !ok {
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return 0, errors.New("no socket exists")
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}
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sysconn, err := nb.ipv4.SyscallConn()
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if err != nil {
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return
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}
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err = sysconn.Control(func(f uintptr) {
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fd = int(f)
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})
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if err != nil {
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return
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}
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return
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}
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func (device *Device) PeekLookAtSocketFd6() (fd int, err error) {
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nb, ok := device.net.bind.(*nativeBind)
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if !ok {
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return 0, errors.New("no socket exists")
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}
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sysconn, err := nb.ipv6.SyscallConn()
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if err != nil {
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return
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}
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err = sysconn.Control(func(f uintptr) {
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fd = int(f)
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})
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if err != nil {
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return
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}
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return
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}
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