// Copyright 2009 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 nacl openbsd

package net

import (
	"syscall"
	"time"
)

func setKeepAlivePeriod(fd *netFD, d time.Duration) error {
	// NaCl and OpenBSD have no user-settable per-socket TCP
	// keepalive options.
	return syscall.ENOPROTOOPT
}