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net: fix ipv6 test

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Fixes #1767.

R=rsc
CC=golang-dev
https://golang.org/cl/4436073
This commit is contained in:
Mikio Hara 2011-05-02 10:49:42 -04:00 committed by Russ Cox
parent 540feaae47
commit 756df8e081
1 changed files with 71 additions and 29 deletions
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100
src/pkg/net/dialgoogle_test.go
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@ -41,20 +41,6 @@ func doDial(t *testing.T, network, addr string) {
fd.Close()
}
var googleaddrs = []string{
"%d.%d.%d.%d:80",
"www.google.com:80",
"%d.%d.%d.%d:http",
"www.google.com:http",
"%03d.%03d.%03d.%03d:0080",
"[::ffff:%d.%d.%d.%d]:80",
"[::ffff:%02x%02x:%02x%02x]:80",
"[0:0:0:0:0000:ffff:%d.%d.%d.%d]:80",
"[0:0:0:0:000000:ffff:%d.%d.%d.%d]:80",
"[0:0:0:0:0:ffff::%d.%d.%d.%d]:80",
"[2001:4860:0:2001::68]:80", // ipv6.google.com; removed if ipv6 flag not set
}
func TestLookupCNAME(t *testing.T) {
if testing.Short() {
// Don't use external network.
@ -67,16 +53,25 @@ func TestLookupCNAME(t *testing.T) {
}
}
func TestDialGoogle(t *testing.T) {
var googleaddrsipv4 = []string{
"%d.%d.%d.%d:80",
"www.google.com:80",
"%d.%d.%d.%d:http",
"www.google.com:http",
"%03d.%03d.%03d.%03d:0080",
"[::ffff:%d.%d.%d.%d]:80",
"[::ffff:%02x%02x:%02x%02x]:80",
"[0:0:0:0:0000:ffff:%d.%d.%d.%d]:80",
"[0:0:0:0:000000:ffff:%d.%d.%d.%d]:80",
"[0:0:0:0:0:ffff::%d.%d.%d.%d]:80",
}
func TestDialGoogleIPv4(t *testing.T) {
if testing.Short() {
// Don't use external network.
t.Logf("skipping external network test during -short")
return
}
// If no ipv6 tunnel, don't try the last address.
if !*ipv6 {
googleaddrs[len(googleaddrs)-1] = ""
}
// Insert an actual IPv4 address for google.com
// into the table.
@ -95,14 +90,14 @@ func TestDialGoogle(t *testing.T) {
t.Fatalf("no IPv4 addresses for www.google.com")
}
for i, s := range googleaddrs {
for i, s := range googleaddrsipv4 {
if strings.Contains(s, "%") {
googleaddrs[i] = fmt.Sprintf(s, ip[0], ip[1], ip[2], ip[3])
googleaddrsipv4[i] = fmt.Sprintf(s, ip[0], ip[1], ip[2], ip[3])
}
}
for i := 0; i < len(googleaddrs); i++ {
addr := googleaddrs[i]
for i := 0; i < len(googleaddrsipv4); i++ {
addr := googleaddrsipv4[i]
if addr == "" {
continue
}
@ -110,20 +105,67 @@ func TestDialGoogle(t *testing.T) {
doDial(t, "tcp", addr)
if addr[0] != '[' {
doDial(t, "tcp4", addr)
if !preferIPv4 {
// make sure preferIPv4 flag works.
preferIPv4 = true
syscall.SocketDisableIPv6 = true
doDial(t, "tcp", addr)
doDial(t, "tcp4", addr)
syscall.SocketDisableIPv6 = false
preferIPv4 = false
}
}
// Only run tcp6 if the kernel will take it.
if kernelSupportsIPv6() {
doDial(t, "tcp6", addr)
}
}
}
var googleaddrsipv6 = []string{
"[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]:80",
"ipv6.google.com:80",
"[%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x:%02x%02x]:http",
"ipv6.google.com:http",
}
func TestDialGoogleIPv6(t *testing.T) {
if testing.Short() {
// Don't use external network.
t.Logf("skipping external network test during -short")
return
}
// Only run tcp6 if the kernel will take it.
if !*ipv6 || !kernelSupportsIPv6() {
return
}
// Insert an actual IPv6 address for ipv6.google.com
// into the table.
addrs, err := LookupIP("ipv6.google.com")
if err != nil {
t.Fatalf("lookup ipv6.google.com: %v", err)
}
var ip IP
for _, addr := range addrs {
if x := addr.To16(); x != nil {
ip = x
break
}
}
if ip == nil {
t.Fatalf("no IPv6 addresses for ipv6.google.com")
}
for i, s := range googleaddrsipv6 {
if strings.Contains(s, "%") {
googleaddrsipv6[i] = fmt.Sprintf(s, ip[0], ip[1], ip[2], ip[3], ip[4], ip[5], ip[6], ip[7], ip[8], ip[9], ip[10], ip[11], ip[12], ip[13], ip[14], ip[15])
}
}
for i := 0; i < len(googleaddrsipv6); i++ {
addr := googleaddrsipv6[i]
if addr == "" {
continue
}
t.Logf("-- %s --", addr)
doDial(t, "tcp", addr)
doDial(t, "tcp6", addr)
}
}