34 lines
987 B
Go
34 lines
987 B
Go
// 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.
|
|
|
|
// +build darwin freebsd openbsd
|
|
|
|
// Sockets for BSD variants
|
|
|
|
package net
|
|
|
|
import (
|
|
"syscall"
|
|
)
|
|
|
|
func setKernelSpecificSockopt(s, f int) {
|
|
// Allow reuse of recently-used addresses.
|
|
syscall.SetsockoptInt(s, syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1)
|
|
|
|
// Allow reuse of recently-used ports.
|
|
// This option is supported only in descendants of 4.4BSD,
|
|
// to make an effective multicast application and an application
|
|
// that requires quick draw possible.
|
|
syscall.SetsockoptInt(s, syscall.SOL_SOCKET, syscall.SO_REUSEPORT, 1)
|
|
|
|
// 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)
|
|
}
|
|
}
|