//go:build !windows

package main

import (

"net"

"os"

"strconv"

"golang.org/x/sys/unix"

"golang.zx2c4.com/wireguard/ipc"

"golang.zx2c4.com/wireguard/tun"

)

func createTUNFromFD(tunFdStr string, mtuInt int) (tun.Device, error) {

fd, err := strconv.ParseUint(tunFdStr, 10, 32)

if err != nil {

return nil, err

}

err = unix.SetNonblock(int(fd), true)

if err != nil {

return nil, err

}

file := os.NewFile(uintptr(fd), "")

return tun.CreateTUNFromFile(file, mtuInt)

}

func uapiOpen(interfaceName string) (*os.File, error) {

return ipc.UAPIOpen(interfaceName)

}

func uapiListen(interfaceName string, fileUAPI *os.File) (net.Listener, error) {

return ipc.UAPIListen(interfaceName, fileUAPI)

}