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45 lines
1.6 KiB
Go
Vendored
45 lines
1.6 KiB
Go
Vendored
// Copyright 2014 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 ipv4
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import (
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"golang.org/x/net/internal/iana"
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"golang.org/x/net/internal/socket"
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"golang.org/x/sys/windows"
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)
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const (
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sizeofIPMreq = 0x8
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sizeofIPMreqSource = 0xc
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)
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type ipMreq struct {
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Multiaddr [4]byte
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Interface [4]byte
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}
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type ipMreqSource struct {
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Multiaddr [4]byte
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Sourceaddr [4]byte
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Interface [4]byte
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}
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// See http://msdn.microsoft.com/en-us/library/windows/desktop/ms738586(v=vs.85).aspx
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var (
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ctlOpts = [ctlMax]ctlOpt{}
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sockOpts = map[int]*sockOpt{
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ssoTOS: {Option: socket.Option{Level: iana.ProtocolIP, Name: windows.IP_TOS, Len: 4}},
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ssoTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: windows.IP_TTL, Len: 4}},
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ssoMulticastTTL: {Option: socket.Option{Level: iana.ProtocolIP, Name: windows.IP_MULTICAST_TTL, Len: 4}},
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ssoMulticastInterface: {Option: socket.Option{Level: iana.ProtocolIP, Name: windows.IP_MULTICAST_IF, Len: 4}},
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ssoMulticastLoopback: {Option: socket.Option{Level: iana.ProtocolIP, Name: windows.IP_MULTICAST_LOOP, Len: 4}},
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ssoHeaderPrepend: {Option: socket.Option{Level: iana.ProtocolIP, Name: windows.IP_HDRINCL, Len: 4}},
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ssoJoinGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: windows.IP_ADD_MEMBERSHIP, Len: sizeofIPMreq}, typ: ssoTypeIPMreq},
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ssoLeaveGroup: {Option: socket.Option{Level: iana.ProtocolIP, Name: windows.IP_DROP_MEMBERSHIP, Len: sizeofIPMreq}, typ: ssoTypeIPMreq},
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}
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)
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