--- /dev/null
+// Copyright 2013 The Go Authors. All rights reserved.
+// Use of this source code is governed by a BSD-style
+// license that can be found in the LICENSE file.
+
+// +build darwin dragonfly freebsd netbsd openbsd
+
+package terminal
+
+import "syscall"
+
+const ioctlReadTermios = syscall.TIOCGETA
+const ioctlWriteTermios = syscall.TIOCSETA