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// Copyright 2009 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 (
"net";
"flag";
"io";
"os";
"testing";
)
// If an IPv6 tunnel is running (see go/stubl), we can try dialing a real IPv6 address.
var ipv6 = false
var ipv6_flag = flag.Bool("ipv6", false, &ipv6, "assume ipv6 tunnel is present")
// fd is already connected to www.google.com port 80.
// Run an HTTP request to fetch the main page.
func FetchGoogle(t *testing.T, fd net.Conn, network, addr string) {
req := io.StringBytes("GET / HTTP/1.0\r\nHost: www.google.com\r\n\r\n");
n, errno := fd.Write(req);
buf := new([]byte, 1000);
n, errno = io.Readn(fd, buf);
if n < 1000 {
t.Errorf("FetchGoogle: short HTTP read from %s %s", network, addr);
return
}
}
func DoDial(t *testing.T, network, addr string) {
fd, err := net.Dial(network, "", addr);
if err != nil {
t.Errorf("net.Dial(%q, %q, %q) = _, %v", network, "", addr, err);
return
}
FetchGoogle(t, fd, network, addr);
fd.Close()
}
func DoDialTCP(t *testing.T, network, addr string) {
fd, err := net.DialTCP(network, "", addr);
if err != nil {
t.Errorf("net.DialTCP(%q, %q, %q) = _, %v", network, "", addr, err);
} else {
FetchGoogle(t, fd, network, addr);
}
fd.Close()
}
var googleaddrs = []string {
"74.125.19.99:80",
"www.google.com:80",
"74.125.19.99:http",
"www.google.com:http",
"074.125.019.099:0080",
"[::ffff:74.125.19.99]:80",
"[::ffff:4a7d:1363]:80",
"[0:0:0:0:0000:ffff:74.125.19.99]:80",
"[0:0:0:0:000000:ffff:74.125.19.99]:80",
"[0:0:0:0:0:ffff::74.125.19.99]:80",
"[2001:4860:0:2001::68]:80" // ipv6.google.com; removed if ipv6 flag not set
}
export func TestDialGoogle(t *testing.T) {
// If no ipv6 tunnel, don't try the last address.
if !ipv6 {
googleaddrs[len(googleaddrs)-1] = ""
}
for i := 0; i < len(googleaddrs); i++ {
addr := googleaddrs[i];
if addr == "" {
continue
}
t.Logf("-- %s --", addr);
DoDial(t, "tcp", addr);
DoDialTCP(t, "tcp", addr);
if addr[0] != '[' {
DoDial(t, "tcp4", addr);
DoDialTCP(t, "tcp4", addr)
}
DoDial(t, "tcp6", addr);
DoDialTCP(t, "tcp6", addr)
}
}
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