1 |
747 |
jeremybenn |
// Copyright 2009 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 |
|
|
"flag"
|
9 |
|
|
"io"
|
10 |
|
|
"os"
|
11 |
|
|
"runtime"
|
12 |
|
|
"strings"
|
13 |
|
|
"testing"
|
14 |
|
|
"time"
|
15 |
|
|
)
|
16 |
|
|
|
17 |
|
|
// Do not test empty datagrams by default.
|
18 |
|
|
// It causes unexplained timeouts on some systems,
|
19 |
|
|
// including Snow Leopard. I think that the kernel
|
20 |
|
|
// doesn't quite expect them.
|
21 |
|
|
var testUDP = flag.Bool("udp", false, "whether to test UDP datagrams")
|
22 |
|
|
|
23 |
|
|
func runEcho(fd io.ReadWriter, done chan<- int) {
|
24 |
|
|
var buf [1024]byte
|
25 |
|
|
|
26 |
|
|
for {
|
27 |
|
|
n, err := fd.Read(buf[0:])
|
28 |
|
|
if err != nil || n == 0 || string(buf[:n]) == "END" {
|
29 |
|
|
break
|
30 |
|
|
}
|
31 |
|
|
fd.Write(buf[0:n])
|
32 |
|
|
}
|
33 |
|
|
done <- 1
|
34 |
|
|
}
|
35 |
|
|
|
36 |
|
|
func runServe(t *testing.T, network, addr string, listening chan<- string, done chan<- int) {
|
37 |
|
|
l, err := Listen(network, addr)
|
38 |
|
|
if err != nil {
|
39 |
|
|
t.Fatalf("net.Listen(%q, %q) = _, %v", network, addr, err)
|
40 |
|
|
}
|
41 |
|
|
listening <- l.Addr().String()
|
42 |
|
|
|
43 |
|
|
for {
|
44 |
|
|
fd, err := l.Accept()
|
45 |
|
|
if err != nil {
|
46 |
|
|
break
|
47 |
|
|
}
|
48 |
|
|
echodone := make(chan int)
|
49 |
|
|
go runEcho(fd, echodone)
|
50 |
|
|
<-echodone // make sure Echo stops
|
51 |
|
|
l.Close()
|
52 |
|
|
}
|
53 |
|
|
done <- 1
|
54 |
|
|
}
|
55 |
|
|
|
56 |
|
|
func connect(t *testing.T, network, addr string, isEmpty bool) {
|
57 |
|
|
var fd Conn
|
58 |
|
|
var err error
|
59 |
|
|
if network == "unixgram" {
|
60 |
|
|
fd, err = DialUnix(network, &UnixAddr{addr + ".local", network}, &UnixAddr{addr, network})
|
61 |
|
|
} else {
|
62 |
|
|
fd, err = Dial(network, addr)
|
63 |
|
|
}
|
64 |
|
|
if err != nil {
|
65 |
|
|
t.Fatalf("net.Dial(%q, %q) = _, %v", network, addr, err)
|
66 |
|
|
}
|
67 |
|
|
fd.SetReadDeadline(time.Now().Add(1 * time.Second))
|
68 |
|
|
|
69 |
|
|
var b []byte
|
70 |
|
|
if !isEmpty {
|
71 |
|
|
b = []byte("hello, world\n")
|
72 |
|
|
}
|
73 |
|
|
var b1 [100]byte
|
74 |
|
|
|
75 |
|
|
n, err1 := fd.Write(b)
|
76 |
|
|
if n != len(b) {
|
77 |
|
|
t.Fatalf("fd.Write(%q) = %d, %v", b, n, err1)
|
78 |
|
|
}
|
79 |
|
|
|
80 |
|
|
n, err1 = fd.Read(b1[0:])
|
81 |
|
|
if n != len(b) || err1 != nil {
|
82 |
|
|
t.Fatalf("fd.Read() = %d, %v (want %d, nil)", n, err1, len(b))
|
83 |
|
|
}
|
84 |
|
|
|
85 |
|
|
// Send explicit ending for unixpacket.
|
86 |
|
|
// Older Linux kernels do stop reads on close.
|
87 |
|
|
if network == "unixpacket" {
|
88 |
|
|
fd.Write([]byte("END"))
|
89 |
|
|
}
|
90 |
|
|
|
91 |
|
|
fd.Close()
|
92 |
|
|
}
|
93 |
|
|
|
94 |
|
|
func doTest(t *testing.T, network, listenaddr, dialaddr string) {
|
95 |
|
|
t.Logf("Test %q %q %q", network, listenaddr, dialaddr)
|
96 |
|
|
switch listenaddr {
|
97 |
|
|
case "", "0.0.0.0", "[::]", "[::ffff:0.0.0.0]":
|
98 |
|
|
if testing.Short() || avoidMacFirewall {
|
99 |
|
|
t.Logf("skip wildcard listen during short test")
|
100 |
|
|
return
|
101 |
|
|
}
|
102 |
|
|
}
|
103 |
|
|
listening := make(chan string)
|
104 |
|
|
done := make(chan int)
|
105 |
|
|
if network == "tcp" || network == "tcp4" || network == "tcp6" {
|
106 |
|
|
listenaddr += ":0" // any available port
|
107 |
|
|
}
|
108 |
|
|
go runServe(t, network, listenaddr, listening, done)
|
109 |
|
|
addr := <-listening // wait for server to start
|
110 |
|
|
if network == "tcp" || network == "tcp4" || network == "tcp6" {
|
111 |
|
|
dialaddr += addr[strings.LastIndex(addr, ":"):]
|
112 |
|
|
}
|
113 |
|
|
connect(t, network, dialaddr, false)
|
114 |
|
|
<-done // make sure server stopped
|
115 |
|
|
}
|
116 |
|
|
|
117 |
|
|
func TestTCPServer(t *testing.T) {
|
118 |
|
|
if runtime.GOOS != "openbsd" {
|
119 |
|
|
doTest(t, "tcp", "", "127.0.0.1")
|
120 |
|
|
}
|
121 |
|
|
doTest(t, "tcp", "0.0.0.0", "127.0.0.1")
|
122 |
|
|
doTest(t, "tcp", "127.0.0.1", "127.0.0.1")
|
123 |
|
|
doTest(t, "tcp4", "", "127.0.0.1")
|
124 |
|
|
doTest(t, "tcp4", "0.0.0.0", "127.0.0.1")
|
125 |
|
|
doTest(t, "tcp4", "127.0.0.1", "127.0.0.1")
|
126 |
|
|
if supportsIPv6 {
|
127 |
|
|
doTest(t, "tcp", "", "[::1]")
|
128 |
|
|
doTest(t, "tcp", "[::]", "[::1]")
|
129 |
|
|
doTest(t, "tcp", "[::1]", "[::1]")
|
130 |
|
|
doTest(t, "tcp6", "", "[::1]")
|
131 |
|
|
doTest(t, "tcp6", "[::]", "[::1]")
|
132 |
|
|
doTest(t, "tcp6", "[::1]", "[::1]")
|
133 |
|
|
}
|
134 |
|
|
if supportsIPv6 && supportsIPv4map {
|
135 |
|
|
doTest(t, "tcp", "[::ffff:0.0.0.0]", "127.0.0.1")
|
136 |
|
|
doTest(t, "tcp", "[::]", "127.0.0.1")
|
137 |
|
|
doTest(t, "tcp4", "[::ffff:0.0.0.0]", "127.0.0.1")
|
138 |
|
|
doTest(t, "tcp6", "", "127.0.0.1")
|
139 |
|
|
doTest(t, "tcp6", "[::ffff:0.0.0.0]", "127.0.0.1")
|
140 |
|
|
doTest(t, "tcp6", "[::]", "127.0.0.1")
|
141 |
|
|
doTest(t, "tcp", "127.0.0.1", "[::ffff:127.0.0.1]")
|
142 |
|
|
doTest(t, "tcp", "[::ffff:127.0.0.1]", "127.0.0.1")
|
143 |
|
|
doTest(t, "tcp4", "127.0.0.1", "[::ffff:127.0.0.1]")
|
144 |
|
|
doTest(t, "tcp4", "[::ffff:127.0.0.1]", "127.0.0.1")
|
145 |
|
|
doTest(t, "tcp6", "127.0.0.1", "[::ffff:127.0.0.1]")
|
146 |
|
|
doTest(t, "tcp6", "[::ffff:127.0.0.1]", "127.0.0.1")
|
147 |
|
|
}
|
148 |
|
|
}
|
149 |
|
|
|
150 |
|
|
func TestUnixServer(t *testing.T) {
|
151 |
|
|
// "unix" sockets are not supported on windows and Plan 9.
|
152 |
|
|
if runtime.GOOS == "windows" || runtime.GOOS == "plan9" {
|
153 |
|
|
return
|
154 |
|
|
}
|
155 |
|
|
os.Remove("/tmp/gotest.net")
|
156 |
|
|
doTest(t, "unix", "/tmp/gotest.net", "/tmp/gotest.net")
|
157 |
|
|
os.Remove("/tmp/gotest.net")
|
158 |
|
|
if runtime.GOOS == "linux" {
|
159 |
|
|
doTest(t, "unixpacket", "/tmp/gotest.net", "/tmp/gotest.net")
|
160 |
|
|
os.Remove("/tmp/gotest.net")
|
161 |
|
|
// Test abstract unix domain socket, a Linux-ism
|
162 |
|
|
doTest(t, "unix", "@gotest/net", "@gotest/net")
|
163 |
|
|
doTest(t, "unixpacket", "@gotest/net", "@gotest/net")
|
164 |
|
|
}
|
165 |
|
|
}
|
166 |
|
|
|
167 |
|
|
func runPacket(t *testing.T, network, addr string, listening chan<- string, done chan<- int) {
|
168 |
|
|
c, err := ListenPacket(network, addr)
|
169 |
|
|
if err != nil {
|
170 |
|
|
t.Fatalf("net.ListenPacket(%q, %q) = _, %v", network, addr, err)
|
171 |
|
|
}
|
172 |
|
|
listening <- c.LocalAddr().String()
|
173 |
|
|
var buf [1000]byte
|
174 |
|
|
Run:
|
175 |
|
|
for {
|
176 |
|
|
c.SetReadDeadline(time.Now().Add(10 * time.Millisecond))
|
177 |
|
|
n, addr, err := c.ReadFrom(buf[0:])
|
178 |
|
|
if e, ok := err.(Error); ok && e.Timeout() {
|
179 |
|
|
select {
|
180 |
|
|
case done <- 1:
|
181 |
|
|
break Run
|
182 |
|
|
default:
|
183 |
|
|
continue Run
|
184 |
|
|
}
|
185 |
|
|
}
|
186 |
|
|
if err != nil {
|
187 |
|
|
break
|
188 |
|
|
}
|
189 |
|
|
if _, err = c.WriteTo(buf[0:n], addr); err != nil {
|
190 |
|
|
t.Fatalf("WriteTo %v: %v", addr, err)
|
191 |
|
|
}
|
192 |
|
|
}
|
193 |
|
|
c.Close()
|
194 |
|
|
done <- 1
|
195 |
|
|
}
|
196 |
|
|
|
197 |
|
|
func doTestPacket(t *testing.T, network, listenaddr, dialaddr string, isEmpty bool) {
|
198 |
|
|
t.Logf("TestPacket %q %q %q", network, listenaddr, dialaddr)
|
199 |
|
|
listening := make(chan string)
|
200 |
|
|
done := make(chan int)
|
201 |
|
|
if network == "udp" {
|
202 |
|
|
listenaddr += ":0" // any available port
|
203 |
|
|
}
|
204 |
|
|
go runPacket(t, network, listenaddr, listening, done)
|
205 |
|
|
addr := <-listening // wait for server to start
|
206 |
|
|
if network == "udp" {
|
207 |
|
|
dialaddr += addr[strings.LastIndex(addr, ":"):]
|
208 |
|
|
}
|
209 |
|
|
connect(t, network, dialaddr, isEmpty)
|
210 |
|
|
<-done // tell server to stop
|
211 |
|
|
<-done // wait for stop
|
212 |
|
|
}
|
213 |
|
|
|
214 |
|
|
func TestUDPServer(t *testing.T) {
|
215 |
|
|
if !*testUDP {
|
216 |
|
|
return
|
217 |
|
|
}
|
218 |
|
|
for _, isEmpty := range []bool{false, true} {
|
219 |
|
|
doTestPacket(t, "udp", "0.0.0.0", "127.0.0.1", isEmpty)
|
220 |
|
|
doTestPacket(t, "udp", "", "127.0.0.1", isEmpty)
|
221 |
|
|
if supportsIPv6 && supportsIPv4map {
|
222 |
|
|
doTestPacket(t, "udp", "[::]", "[::ffff:127.0.0.1]", isEmpty)
|
223 |
|
|
doTestPacket(t, "udp", "[::]", "127.0.0.1", isEmpty)
|
224 |
|
|
doTestPacket(t, "udp", "0.0.0.0", "[::ffff:127.0.0.1]", isEmpty)
|
225 |
|
|
}
|
226 |
|
|
}
|
227 |
|
|
}
|
228 |
|
|
|
229 |
|
|
func TestUnixDatagramServer(t *testing.T) {
|
230 |
|
|
// "unix" sockets are not supported on windows and Plan 9.
|
231 |
|
|
if runtime.GOOS == "windows" || runtime.GOOS == "plan9" {
|
232 |
|
|
return
|
233 |
|
|
}
|
234 |
|
|
for _, isEmpty := range []bool{false} {
|
235 |
|
|
os.Remove("/tmp/gotest1.net")
|
236 |
|
|
os.Remove("/tmp/gotest1.net.local")
|
237 |
|
|
doTestPacket(t, "unixgram", "/tmp/gotest1.net", "/tmp/gotest1.net", isEmpty)
|
238 |
|
|
os.Remove("/tmp/gotest1.net")
|
239 |
|
|
os.Remove("/tmp/gotest1.net.local")
|
240 |
|
|
if runtime.GOOS == "linux" {
|
241 |
|
|
// Test abstract unix domain socket, a Linux-ism
|
242 |
|
|
doTestPacket(t, "unixgram", "@gotest1/net", "@gotest1/net", isEmpty)
|
243 |
|
|
}
|
244 |
|
|
}
|
245 |
|
|
}
|