single socket option

2 files changed, 6 insertions, 0 deletions

diff --git a/pkg/server/socket/socket.go b/pkg/server/socket/socket.go
index b419468..62ce5cf 100644
--- a/pkg/server/socket/socket.go
+++ b/pkg/server/socket/socket.go
@@ -25,6 +25,10 @@ type S interface {
 	Close()
 }
 
+type Single interface {
+	Single()
+}
+
 type conn struct {
 	net.Conn
 
diff --git a/pkg/server/socket/tun.go b/pkg/server/socket/tun.go
index 7336c04..d48c30c 100644
--- a/pkg/server/socket/tun.go
+++ b/pkg/server/socket/tun.go
@@ -43,6 +43,8 @@ func (s *tunSocket) String() string {
 	return fmt.Sprintf("tun/%s", s.name)
 }
 
+func (s *tunSocket) Single() {}
+
 func (s *tunSocket) Open(env.Env) (Conn, error) {
 	fd, err := unix.Open("/dev/net/tun", unix.O_RDWR, 0)
 	if err != nil {