| David K. Bainbridge | 215e024 | 2017-09-05 23:18:24 -0700 | [diff] [blame] | 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 | // +build darwin dragonfly freebsd linux netbsd openbsd solaris windows |
| 6 | |
| 7 | package ipv6 |
| 8 | |
| 9 | import ( |
| 10 | "net" |
| 11 | "unsafe" |
| 12 | |
| 13 | "golang.org/x/net/internal/socket" |
| 14 | ) |
| 15 | |
| 16 | func (so *sockOpt) setIPMreq(c *socket.Conn, ifi *net.Interface, grp net.IP) error { |
| 17 | var mreq ipv6Mreq |
| 18 | copy(mreq.Multiaddr[:], grp) |
| 19 | if ifi != nil { |
| 20 | mreq.setIfindex(ifi.Index) |
| 21 | } |
| 22 | b := (*[sizeofIPv6Mreq]byte)(unsafe.Pointer(&mreq))[:sizeofIPv6Mreq] |
| 23 | return so.Set(c, b) |
| 24 | } |