wireguard-go-bridge: update to Go 1.12

Signed-off-by: Jason A. Donenfeld <Jason@zx2c4.com>

1 files changed, 4 insertions, 10 deletions

diff --git a/wireguard-go-bridge/src/tun/api-ios.go b/wireguard-go-bridge/src/tun/api-ios.go
index 0d542cf..8d3413e 100644
--- a/wireguard-go-bridge/src/tun/api-ios.go
+++ b/wireguard-go-bridge/src/tun/api-ios.go
@@ -6,28 +6,24 @@
 package tun
 
 import (
-	"git.zx2c4.com/wireguard-go/rwcancel"
 	"golang.org/x/sys/unix"
 	"net"
 	"os"
 )
 
 func CreateTUNFromFD(tunFd int) (TUNDevice, string, error) {
+	err := unix.SetNonblock(tunFd, true)
+	if err != nil {
+		return nil, "", err
+	}
 	file := os.NewFile(uintptr(tunFd), "/dev/tun")
 	tun := &nativeTun{
 		tunFile: file,
-		fd:      file.Fd(),
 		events:  make(chan TUNEvent, 5),
 		errors:  make(chan error, 5),
 	}
-	var err error
-	tun.rwcancel, err = rwcancel.NewRWCancel(tunFd)
-	if err != nil {
-		return nil, "", err
-	}
 	name, err := tun.Name()
 	if err != nil {
-		tun.rwcancel.Cancel()
 		return nil, "", err
 	}
 	tunIfindex, err := func() (int, error) {
@@ -38,12 +34,10 @@ func CreateTUNFromFD(tunFd int) (TUNDevice, string, error) {
 		return iface.Index, nil
 	}()
 	if err != nil {
-		tun.tunFile.Close()
 		return nil, "", err
 	}
 	tun.routeSocket, err = unix.Socket(unix.AF_ROUTE, unix.SOCK_RAW, unix.AF_UNSPEC)
 	if err != nil {
-		tun.tunFile.Close()
 		return nil, "", err
 	}
 	go tun.routineRouteListener(tunIfindex)