github.com/graybobo/golang.org-package-offline-cache@v0.0.0-20200626051047-6608995c132f/x/net/ipv6/sockopt_asmreq_windows.go (about)

     1  // Copyright 2013 The Go Authors.  All rights reserved.
     2  // Use of this source code is governed by a BSD-style
     3  // license that can be found in the LICENSE file.
     4  
     5  package ipv6
     6  
     7  import (
     8  	"net"
     9  	"os"
    10  	"syscall"
    11  	"unsafe"
    12  )
    13  
    14  func setsockoptIPMreq(fd syscall.Handle, opt *sockOpt, ifi *net.Interface, grp net.IP) error {
    15  	var mreq sysIPv6Mreq
    16  	copy(mreq.Multiaddr[:], grp)
    17  	if ifi != nil {
    18  		mreq.setIfindex(ifi.Index)
    19  	}
    20  	return os.NewSyscallError("setsockopt", syscall.Setsockopt(fd, int32(opt.level), int32(opt.name), (*byte)(unsafe.Pointer(&mreq)), sysSizeofIPv6Mreq))
    21  }