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// Copyright 2011 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.
// Sockets for Windows
package net
import (
"syscall"
)
func setKernelSpecificSockopt(s syscall.Handle, f int) {
// Windows will reuse recently-used addresses by default.
// SO_REUSEADDR should not be used here, as it allows
// a socket to forcibly bind to a port in use by another socket.
// This could lead to a non-deterministic behavior, where
// connection requests over the port cannot be guaranteed
// to be handled by the correct socket.
// Allow broadcast.
syscall.SetsockoptInt(s, syscall.SOL_SOCKET, syscall.SO_BROADCAST, 1)
if f == syscall.AF_INET6 {
// using ip, tcp, udp, etc.
// allow both protocols even if the OS default is otherwise.
syscall.SetsockoptInt(s, syscall.IPPROTO_IPV6, syscall.IPV6_V6ONLY, 0)
}
}
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