//go:build go1.20 package inbound import ( "context" "net" "github.com/sagernet/tfo-go" ) const go120Available = true func listenTFO(listenConfig net.ListenConfig, ctx context.Context, network string, address string) (net.Listener, error) { var tfoConfig tfo.ListenConfig tfoConfig.ListenConfig = listenConfig return tfoConfig.Listen(ctx, network, address) }