mirror of
https://github.com/autc04/Retro68.git
synced 2024-07-11 11:29:05 +00:00
32 lines
830 B
Go
32 lines
830 B
Go
// Copyright 2011 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.
|
|
|
|
package net
|
|
|
|
import (
|
|
"os"
|
|
"syscall"
|
|
)
|
|
|
|
func setIPv4MulticastInterface(fd *netFD, ifi *Interface) error {
|
|
var v int32
|
|
if ifi != nil {
|
|
v = int32(ifi.Index)
|
|
}
|
|
mreq := &syscall.IPMreqn{Ifindex: v}
|
|
if err := fd.incref(); err != nil {
|
|
return err
|
|
}
|
|
defer fd.decref()
|
|
return os.NewSyscallError("setsockopt", syscall.SetsockoptIPMreqn(fd.sysfd, syscall.IPPROTO_IP, syscall.IP_MULTICAST_IF, mreq))
|
|
}
|
|
|
|
func setIPv4MulticastLoopback(fd *netFD, v bool) error {
|
|
if err := fd.incref(); err != nil {
|
|
return err
|
|
}
|
|
defer fd.decref()
|
|
return os.NewSyscallError("setsockopt", syscall.SetsockoptInt(fd.sysfd, syscall.IPPROTO_IP, syscall.IP_MULTICAST_LOOP, boolint(v)))
|
|
}
|