1// Copyright 2013 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//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || windows 6// +build aix darwin dragonfly freebsd linux netbsd openbsd solaris windows 7 8package ipv6 9 10import ( 11 "net" 12 "unsafe" 13 14 "golang.org/x/net/internal/socket" 15) 16 17func (so *sockOpt) setIPMreq(c *socket.Conn, ifi *net.Interface, grp net.IP) error { 18 var mreq ipv6Mreq 19 copy(mreq.Multiaddr[:], grp) 20 if ifi != nil { 21 mreq.setIfindex(ifi.Index) 22 } 23 b := (*[sizeofIPv6Mreq]byte)(unsafe.Pointer(&mreq))[:sizeofIPv6Mreq] 24 return so.Set(c, b) 25} 26