wireguard-go/tun/operateonfd.go
Tobias Klauser 217ac1016b tun: make operateonfd.go build tags more specific
(*NativeTun).operateOnFd is only used on darwin and freebsd. Adjust the
build tags accordingly.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>
2021-09-23 09:54:01 -06:00

26 lines
535 B
Go

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