From e1e8d058a33f7566f9c565d04b0d8b56f9645c35 Mon Sep 17 00:00:00 2001 From: Dimitri Sokolyuk Date: Wed, 25 Apr 2018 09:28:54 +0200 Subject: add vendor --- vendor/golang.org/x/net/ipv4/control_pktinfo.go | 39 +++++++++++++++++++++++++ 1 file changed, 39 insertions(+) create mode 100644 vendor/golang.org/x/net/ipv4/control_pktinfo.go (limited to 'vendor/golang.org/x/net/ipv4/control_pktinfo.go') diff --git a/vendor/golang.org/x/net/ipv4/control_pktinfo.go b/vendor/golang.org/x/net/ipv4/control_pktinfo.go new file mode 100644 index 0000000..425338f --- /dev/null +++ b/vendor/golang.org/x/net/ipv4/control_pktinfo.go @@ -0,0 +1,39 @@ +// Copyright 2014 The Go Authors. All rights reserved. +// Use of this source code is governed by a BSD-style +// license that can be found in the LICENSE file. + +// +build darwin linux solaris + +package ipv4 + +import ( + "net" + "unsafe" + + "golang.org/x/net/internal/iana" + "golang.org/x/net/internal/socket" +) + +func marshalPacketInfo(b []byte, cm *ControlMessage) []byte { + m := socket.ControlMessage(b) + m.MarshalHeader(iana.ProtocolIP, sysIP_PKTINFO, sizeofInetPktinfo) + if cm != nil { + pi := (*inetPktinfo)(unsafe.Pointer(&m.Data(sizeofInetPktinfo)[0])) + if ip := cm.Src.To4(); ip != nil { + copy(pi.Spec_dst[:], ip) + } + if cm.IfIndex > 0 { + pi.setIfindex(cm.IfIndex) + } + } + return m.Next(sizeofInetPktinfo) +} + +func parsePacketInfo(cm *ControlMessage, b []byte) { + pi := (*inetPktinfo)(unsafe.Pointer(&b[0])) + cm.IfIndex = int(pi.Ifindex) + if len(cm.Dst) < net.IPv4len { + cm.Dst = make(net.IP, net.IPv4len) + } + copy(cm.Dst, pi.Addr[:]) +} -- cgit v1.2.3