mirror of
https://github.com/golang/go
synced 2024-11-18 07:44:51 -07:00
5fea2ccc77
The tree's pretty inconsistent about single space vs double space after a period in documentation. Make it consistently a single space, per earlier decisions. This means contributors won't be confused by misleading precedence. This CL doesn't use go/doc to parse. It only addresses // comments. It was generated with: $ perl -i -npe 's,^(\s*// .+[a-z]\.) +([A-Z]),$1 $2,' $(git grep -l -E '^\s*//(.+\.) +([A-Z])') $ go test go/doc -update Change-Id: Iccdb99c37c797ef1f804a94b22ba5ee4b500c4f7 Reviewed-on: https://go-review.googlesource.com/20022 Reviewed-by: Rob Pike <r@golang.org> Reviewed-by: Dave Day <djd@golang.org> Run-TryBot: Brad Fitzpatrick <bradfitz@golang.org> TryBot-Result: Gobot Gobot <gobot@golang.org>
55 lines
2.1 KiB
Go
55 lines
2.1 KiB
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 dragonfly freebsd netbsd openbsd
|
|
|
|
package net
|
|
|
|
import (
|
|
"os"
|
|
"runtime"
|
|
"syscall"
|
|
)
|
|
|
|
func setDefaultSockopts(s, family, sotype int, ipv6only bool) error {
|
|
if runtime.GOOS == "dragonfly" && sotype != syscall.SOCK_RAW {
|
|
// On DragonFly BSD, we adjust the ephemeral port
|
|
// range because unlike other BSD systems its default
|
|
// port range doesn't conform to IANA recommendation
|
|
// as described in RFC 6056 and is pretty narrow.
|
|
switch family {
|
|
case syscall.AF_INET:
|
|
syscall.SetsockoptInt(s, syscall.IPPROTO_IP, syscall.IP_PORTRANGE, syscall.IP_PORTRANGE_HIGH)
|
|
case syscall.AF_INET6:
|
|
syscall.SetsockoptInt(s, syscall.IPPROTO_IPV6, syscall.IPV6_PORTRANGE, syscall.IPV6_PORTRANGE_HIGH)
|
|
}
|
|
}
|
|
if supportsIPv4map && family == syscall.AF_INET6 && sotype != syscall.SOCK_RAW {
|
|
// Allow both IP versions even if the OS default
|
|
// is otherwise. Note that some operating systems
|
|
// never admit this option.
|
|
syscall.SetsockoptInt(s, syscall.IPPROTO_IPV6, syscall.IPV6_V6ONLY, boolint(ipv6only))
|
|
}
|
|
// Allow broadcast.
|
|
return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(s, syscall.SOL_SOCKET, syscall.SO_BROADCAST, 1))
|
|
}
|
|
|
|
func setDefaultListenerSockopts(s int) error {
|
|
// Allow reuse of recently-used addresses.
|
|
return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(s, syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1))
|
|
}
|
|
|
|
func setDefaultMulticastSockopts(s int) error {
|
|
// Allow multicast UDP and raw IP datagram sockets to listen
|
|
// concurrently across multiple listeners.
|
|
if err := syscall.SetsockoptInt(s, syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1); err != nil {
|
|
return os.NewSyscallError("setsockopt", err)
|
|
}
|
|
// Allow reuse of recently-used ports.
|
|
// This option is supported only in descendants of 4.4BSD,
|
|
// to make an effective multicast application that requires
|
|
// quick draw possible.
|
|
return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(s, syscall.SOL_SOCKET, syscall.SO_REUSEPORT, 1))
|
|
}
|