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https://github.com/golang/go
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946cb0ece1
This CL enables to list the multicast, joined group addresses for a specific interface by using Interface.MulticastAddrs method. R=rsc CC=golang-dev https://golang.org/cl/4808062
74 lines
1.9 KiB
Go
74 lines
1.9 KiB
Go
// Copyright 2011 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package net
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import (
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"bytes"
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"testing"
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)
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func sameInterface(i, j *Interface) bool {
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if i == nil || j == nil {
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return false
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}
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if i.Index == j.Index && i.Name == j.Name && bytes.Equal(i.HardwareAddr, j.HardwareAddr) {
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return true
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}
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return false
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}
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func TestInterfaces(t *testing.T) {
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ift, err := Interfaces()
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if err != nil {
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t.Fatalf("Interfaces() failed: %v", err)
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}
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t.Logf("table: len/cap = %v/%v\n", len(ift), cap(ift))
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for _, ifi := range ift {
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ifxi, err := InterfaceByIndex(ifi.Index)
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if err != nil {
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t.Fatalf("InterfaceByIndex(%#q) failed: %v", ifi.Index, err)
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}
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if !sameInterface(ifxi, &ifi) {
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t.Fatalf("InterfaceByIndex(%#q) = %v, want %v", ifi.Index, *ifxi, ifi)
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}
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ifxn, err := InterfaceByName(ifi.Name)
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if err != nil {
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t.Fatalf("InterfaceByName(%#q) failed: %v", ifi.Name, err)
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}
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if !sameInterface(ifxn, &ifi) {
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t.Fatalf("InterfaceByName(%#q) = %v, want %v", ifi.Name, *ifxn, ifi)
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}
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ifat, err := ifi.Addrs()
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if err != nil {
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t.Fatalf("Interface.Addrs() failed: %v", err)
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}
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ifmat, err := ifi.MulticastAddrs()
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if err != nil {
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t.Fatalf("Interface.MulticastAddrs() failed: %v", err)
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}
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t.Logf("%q: flags %q, ifindex %v, mtu %v\n", ifi.Name, ifi.Flags.String(), ifi.Index, ifi.MTU)
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for _, ifa := range ifat {
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t.Logf("\tinterface address %q\n", ifa.String())
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}
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for _, ifma := range ifmat {
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t.Logf("\tjoined group address %q\n", ifma.String())
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}
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t.Logf("\thardware address %q", ifi.HardwareAddr.String())
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}
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}
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func TestInterfaceAddrs(t *testing.T) {
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ifat, err := InterfaceAddrs()
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if err != nil {
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t.Fatalf("InterfaceAddrs() failed: %v", err)
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}
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t.Logf("table: len/cap = %v/%v\n", len(ifat), cap(ifat))
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for _, ifa := range ifat {
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t.Logf("interface address %q\n", ifa.String())
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}
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}
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