/usr/share/gocode/src/code.google.com/p/go.net/ipv6/multicastsockopt_test.go is in golang-go.net-dev 0.0~hg20131201-1.
This file is owned by root:root, with mode 0o644.
The actual contents of the file can be viewed below.
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30 31 32 33 34 35 36 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51 52 53 54 55 56 57 58 59 60 61 62 63 64 65 66 67 68 69 70 71 72 73 74 75 76 | // Copyright 2013 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 ipv6_test
import (
"code.google.com/p/go.net/ipv6"
"net"
"os"
"runtime"
"testing"
)
var packetConnMulticastSocketOptionTests = []struct {
net, proto, addr string
gaddr net.Addr
}{
{"udp6", "", "[ff02::]:0", &net.UDPAddr{IP: net.ParseIP("ff02::114")}}, // see RFC 4727
{"ip6", ":ipv6-icmp", "::", &net.IPAddr{IP: net.ParseIP("ff02::114")}}, // see RFC 4727
}
func TestPacketConnMulticastSocketOptions(t *testing.T) {
switch runtime.GOOS {
case "plan9", "windows":
t.Skipf("not supported on %q", runtime.GOOS)
}
if !supportsIPv6 {
t.Skip("ipv6 is not supported")
}
ifi := loopbackInterface()
if ifi == nil {
t.Skipf("not available on %q", runtime.GOOS)
}
for _, tt := range packetConnMulticastSocketOptionTests {
if tt.net == "ip6" && os.Getuid() != 0 {
t.Skip("must be root")
}
c, err := net.ListenPacket(tt.net+tt.proto, tt.addr)
if err != nil {
t.Fatalf("net.ListenPacket failed: %v", err)
}
defer c.Close()
p := ipv6.NewPacketConn(c)
hoplim := 255
if err := p.SetMulticastHopLimit(hoplim); err != nil {
t.Fatalf("ipv6.PacketConn.SetMulticastHopLimit failed: %v", err)
}
if v, err := p.MulticastHopLimit(); err != nil {
t.Fatalf("ipv6.PacketConn.MulticastHopLimit failed: %v", err)
} else if v != hoplim {
t.Fatalf("got unexpected multicast hop limit %v; expected %v", v, hoplim)
}
for _, toggle := range []bool{true, false} {
if err := p.SetMulticastLoopback(toggle); err != nil {
t.Fatalf("ipv6.PacketConn.SetMulticastLoopback failed: %v", err)
}
if v, err := p.MulticastLoopback(); err != nil {
t.Fatalf("ipv6.PacketConn.MulticastLoopback failed: %v", err)
} else if v != toggle {
t.Fatalf("got unexpected multicast loopback %v; expected %v", v, toggle)
}
}
if err := p.JoinGroup(ifi, tt.gaddr); err != nil {
t.Fatalf("ipv6.PacketConn.JoinGroup(%v, %v) failed: %v", ifi, tt.gaddr, err)
}
if err := p.LeaveGroup(ifi, tt.gaddr); err != nil {
t.Fatalf("ipv6.PacketConn.LeaveGroup(%v, %v) failed: %v", ifi, tt.gaddr, err)
}
}
}
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