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25 lines
589 B
Go
25 lines
589 B
Go
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// 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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// +build darwin dragonfly freebsd linux netbsd openbsd solaris windows
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package ipv6
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import (
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"net"
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"unsafe"
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"golang.org/x/net/internal/socket"
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)
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func (so *sockOpt) setIPMreq(c *socket.Conn, ifi *net.Interface, grp net.IP) error {
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var mreq ipv6Mreq
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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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b := (*[sizeofIPv6Mreq]byte)(unsafe.Pointer(&mreq))[:sizeofIPv6Mreq]
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return so.Set(c, b)
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}
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