22 lines
570 B
Go
22 lines
570 B
Go
// Copyright 2013 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package ipv6
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import (
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"net"
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"os"
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"syscall"
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"unsafe"
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)
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func setsockoptIPMreq(fd syscall.Handle, opt *sockOpt, ifi *net.Interface, grp net.IP) error {
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var mreq sysIPv6Mreq
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copy(mreq.Multiaddr[:], grp)
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if ifi != nil {
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mreq.setIfindex(ifi.Index)
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}
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return os.NewSyscallError("setsockopt", syscall.Setsockopt(fd, int32(opt.level), int32(opt.name), (*byte)(unsafe.Pointer(&mreq)), sysSizeofIPv6Mreq))
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}
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