libgo/go/net/sockopt_aix.go

   1 // Copyright 2017 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package net
   6
   7 import (
   8         "os"
   9         "syscall"
  10 )
  11
  12 // This was copied from sockopt_linux.go
  13
  14 func setDefaultSockopts(s, family, sotype int, ipv6only bool) error {
  15         if family == syscall.AF_INET6 && sotype != syscall.SOCK_RAW {
  16                 // Allow both IP versions even if the OS default
  17                 // is otherwise. Note that some operating systems
  18                 // never admit this option.
  19                 syscall.SetsockoptInt(s, syscall.IPPROTO_IPV6, syscall.IPV6_V6ONLY, boolint(ipv6only))
  20         }
  21         // Allow broadcast.
  22         return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(s, syscall.SOL_SOCKET, syscall.SO_BROADCAST, 1))
  23 }
  24
  25 func setDefaultListenerSockopts(s int) error {
  26         // Allow reuse of recently-used addresses.
  27         return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(s, syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1))
  28 }
  29
  30 func setDefaultMulticastSockopts(s int) error {
  31         // Allow multicast UDP and raw IP datagram sockets to listen
  32         // concurrently across multiple listeners.
  33         return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(s, syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1))
  34 }