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/sys_asmreqn.go | 42 +++++++++++++++++++++++++++++ 1 file changed, 42 insertions(+) create mode 100644 vendor/golang.org/x/net/ipv4/sys_asmreqn.go (limited to 'vendor/golang.org/x/net/ipv4/sys_asmreqn.go') diff --git a/vendor/golang.org/x/net/ipv4/sys_asmreqn.go b/vendor/golang.org/x/net/ipv4/sys_asmreqn.go new file mode 100644 index 0000000..1f24f69 --- /dev/null +++ b/vendor/golang.org/x/net/ipv4/sys_asmreqn.go @@ -0,0 +1,42 @@ +// 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 freebsd linux + +package ipv4 + +import ( + "net" + "unsafe" + + "golang.org/x/net/internal/socket" +) + +func (so *sockOpt) getIPMreqn(c *socket.Conn) (*net.Interface, error) { + b := make([]byte, so.Len) + if _, err := so.Get(c, b); err != nil { + return nil, err + } + mreqn := (*ipMreqn)(unsafe.Pointer(&b[0])) + if mreqn.Ifindex == 0 { + return nil, nil + } + ifi, err := net.InterfaceByIndex(int(mreqn.Ifindex)) + if err != nil { + return nil, err + } + return ifi, nil +} + +func (so *sockOpt) setIPMreqn(c *socket.Conn, ifi *net.Interface, grp net.IP) error { + var mreqn ipMreqn + if ifi != nil { + mreqn.Ifindex = int32(ifi.Index) + } + if grp != nil { + mreqn.Multiaddr = [4]byte{grp[0], grp[1], grp[2], grp[3]} + } + b := (*[sizeofIPMreqn]byte)(unsafe.Pointer(&mreqn))[:sizeofIPMreqn] + return so.Set(c, b) +} -- cgit v1.2.3