Source file src/pkg/net/sockoptip_windows.go

     1	// Copyright 2011 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 net
     6	
     7	import (
     8		"os"
     9		"runtime"
    10		"syscall"
    11		"unsafe"
    12	)
    13	
    14	func setIPv4MulticastInterface(fd *netFD, ifi *Interface) error {
    15		ip, err := interfaceToIPv4Addr(ifi)
    16		if err != nil {
    17			return os.NewSyscallError("setsockopt", err)
    18		}
    19		var a [4]byte
    20		copy(a[:], ip.To4())
    21		err = fd.pfd.Setsockopt(syscall.IPPROTO_IP, syscall.IP_MULTICAST_IF, (*byte)(unsafe.Pointer(&a[0])), 4)
    22		runtime.KeepAlive(fd)
    23		return wrapSyscallError("setsockopt", err)
    24	}
    25	
    26	func setIPv4MulticastLoopback(fd *netFD, v bool) error {
    27		err := fd.pfd.SetsockoptInt(syscall.IPPROTO_IP, syscall.IP_MULTICAST_LOOP, boolint(v))
    28		runtime.KeepAlive(fd)
    29		return wrapSyscallError("setsockopt", err)
    30	}
    31	

View as plain text