...

Source file src/pkg/net/sockoptip_linux.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		"runtime"
     9		"syscall"
    10	)
    11	
    12	func setIPv4MulticastInterface(fd *netFD, ifi *Interface) error {
    13		var v int32
    14		if ifi != nil {
    15			v = int32(ifi.Index)
    16		}
    17		mreq := &syscall.IPMreqn{Ifindex: v}
    18		err := fd.pfd.SetsockoptIPMreqn(syscall.IPPROTO_IP, syscall.IP_MULTICAST_IF, mreq)
    19		runtime.KeepAlive(fd)
    20		return wrapSyscallError("setsockopt", err)
    21	}
    22	
    23	func setIPv4MulticastLoopback(fd *netFD, v bool) error {
    24		err := fd.pfd.SetsockoptInt(syscall.IPPROTO_IP, syscall.IP_MULTICAST_LOOP, boolint(v))
    25		runtime.KeepAlive(fd)
    26		return wrapSyscallError("setsockopt", err)
    27	}
    28	

View as plain text