1 // Copyright 2013 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.
5 //go:build !plan9 && !windows
20 func TestReadUnixgramWithUnnamedSocket(t *testing.T) {
21 if !testableNetwork("unixgram") {
22 t.Skip("unixgram test")
26 t.Skipf("skipping: syscall.Socket not implemented on %s", runtime.GOOS)
28 if runtime.GOOS == "openbsd" {
29 testenv.SkipFlaky(t, 15157)
32 addr := testUnixAddr(t)
33 la, err := ResolveUnixAddr("unixgram", addr)
37 c, err := ListenUnixgram("unixgram", la)
46 off := make(chan bool)
47 data := [5]byte{1, 2, 3, 4, 5}
49 defer func() { off <- true }()
50 s, err := syscall.Socket(syscall.AF_UNIX, syscall.SOCK_DGRAM, 0)
55 defer syscall.Close(s)
56 rsa := &syscall.SockaddrUnix{Name: addr}
57 if err := syscall.Sendto(s, data[:], 0, rsa); err != nil {
65 c.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
66 n, from, err := c.ReadFrom(b)
71 t.Fatalf("unexpected peer address: %v", from)
73 if !bytes.Equal(b[:n], data[:]) {
74 t.Fatalf("got %v; want %v", b[:n], data[:])
78 func TestUnixgramZeroBytePayload(t *testing.T) {
79 if !testableNetwork("unixgram") {
80 t.Skip("unixgram test")
83 c1 := newLocalPacketListener(t, "unixgram")
84 defer os.Remove(c1.LocalAddr().String())
87 c2, err := Dial("unixgram", c1.LocalAddr().String())
91 defer os.Remove(c2.LocalAddr().String())
94 for _, genericRead := range []bool{false, true} {
95 n, err := c2.Write(nil)
100 t.Errorf("got %d; want 0", n)
102 c1.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
106 _, err = c1.(Conn).Read(b[:])
108 _, peer, err = c1.ReadFrom(b[:])
111 case nil: // ReadFrom succeeds
112 if peer != nil { // peer is connected-mode
113 t.Fatalf("unexpected peer address: %v", peer)
115 default: // Read may timeout, it depends on the platform
116 if !isDeadlineExceeded(err) {
123 func TestUnixgramZeroByteBuffer(t *testing.T) {
124 if !testableNetwork("unixgram") {
125 t.Skip("unixgram test")
127 // issue 4352: Recvfrom failed with "address family not
128 // supported by protocol family" if zero-length buffer provided
130 c1 := newLocalPacketListener(t, "unixgram")
131 defer os.Remove(c1.LocalAddr().String())
134 c2, err := Dial("unixgram", c1.LocalAddr().String())
138 defer os.Remove(c2.LocalAddr().String())
141 b := []byte("UNIXGRAM ZERO BYTE BUFFER TEST")
142 for _, genericRead := range []bool{false, true} {
143 n, err := c2.Write(b)
148 t.Errorf("got %d; want %d", n, len(b))
150 c1.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
153 _, err = c1.(Conn).Read(nil)
155 _, peer, err = c1.ReadFrom(nil)
158 case nil: // ReadFrom succeeds
159 if peer != nil { // peer is connected-mode
160 t.Fatalf("unexpected peer address: %v", peer)
162 default: // Read may timeout, it depends on the platform
163 if !isDeadlineExceeded(err) {
170 func TestUnixgramWrite(t *testing.T) {
171 if !testableNetwork("unixgram") {
172 t.Skip("unixgram test")
175 addr := testUnixAddr(t)
176 laddr, err := ResolveUnixAddr("unixgram", addr)
180 c, err := ListenPacket("unixgram", addr)
184 defer os.Remove(addr)
187 testUnixgramWriteConn(t, laddr)
188 testUnixgramWritePacketConn(t, laddr)
191 func testUnixgramWriteConn(t *testing.T, raddr *UnixAddr) {
192 c, err := Dial("unixgram", raddr.String())
198 b := []byte("CONNECTED-MODE SOCKET")
199 if _, err := c.(*UnixConn).WriteToUnix(b, raddr); err == nil {
200 t.Fatal("should fail")
201 } else if err.(*OpError).Err != ErrWriteToConnected {
202 t.Fatalf("should fail as ErrWriteToConnected: %v", err)
204 if _, err = c.(*UnixConn).WriteTo(b, raddr); err == nil {
205 t.Fatal("should fail")
206 } else if err.(*OpError).Err != ErrWriteToConnected {
207 t.Fatalf("should fail as ErrWriteToConnected: %v", err)
209 if _, _, err = c.(*UnixConn).WriteMsgUnix(b, nil, raddr); err == nil {
210 t.Fatal("should fail")
211 } else if err.(*OpError).Err != ErrWriteToConnected {
212 t.Fatalf("should fail as ErrWriteToConnected: %v", err)
214 if _, err := c.Write(b); err != nil {
219 func testUnixgramWritePacketConn(t *testing.T, raddr *UnixAddr) {
220 addr := testUnixAddr(t)
221 c, err := ListenPacket("unixgram", addr)
225 defer os.Remove(addr)
228 b := []byte("UNCONNECTED-MODE SOCKET")
229 if _, err := c.(*UnixConn).WriteToUnix(b, raddr); err != nil {
232 if _, err := c.WriteTo(b, raddr); err != nil {
235 if _, _, err := c.(*UnixConn).WriteMsgUnix(b, nil, raddr); err != nil {
238 if _, err := c.(*UnixConn).Write(b); err == nil {
239 t.Fatal("should fail")
243 func TestUnixConnLocalAndRemoteNames(t *testing.T) {
244 if !testableNetwork("unix") {
248 handler := func(ls *localServer, ln Listener) {}
249 for _, laddr := range []string{"", testUnixAddr(t)} {
251 taddr := testUnixAddr(t)
252 ta, err := ResolveUnixAddr("unix", taddr)
256 ln, err := ListenUnix("unix", ta)
260 ls := (&streamListener{Listener: ln}).newLocalServer()
262 if err := ls.buildup(handler); err != nil {
266 la, err := ResolveUnixAddr("unix", laddr)
270 c, err := DialUnix("unix", la, ta)
277 defer os.Remove(laddr)
280 if _, err := c.Write([]byte("UNIXCONN LOCAL AND REMOTE NAME TEST")); err != nil {
284 switch runtime.GOOS {
285 case "android", "linux":
287 laddr = "@" // autobind feature
290 var connAddrs = [3]struct{ got, want Addr }{
292 {c.LocalAddr(), &UnixAddr{Name: laddr, Net: "unix"}},
293 {c.RemoteAddr(), ta},
295 for _, ca := range connAddrs {
296 if !reflect.DeepEqual(ca.got, ca.want) {
297 t.Fatalf("got %#v, expected %#v", ca.got, ca.want)
303 func TestUnixgramConnLocalAndRemoteNames(t *testing.T) {
304 if !testableNetwork("unixgram") {
305 t.Skip("unixgram test")
308 for _, laddr := range []string{"", testUnixAddr(t)} {
310 taddr := testUnixAddr(t)
311 ta, err := ResolveUnixAddr("unixgram", taddr)
315 c1, err := ListenUnixgram("unixgram", ta)
326 if la, err = ResolveUnixAddr("unixgram", laddr); err != nil {
330 c2, err := DialUnix("unixgram", la, ta)
337 defer os.Remove(laddr)
341 switch runtime.GOOS {
342 case "android", "linux":
344 laddr = "@" // autobind feature
348 var connAddrs = [4]struct{ got, want Addr }{
349 {c1.LocalAddr(), ta},
350 {c1.RemoteAddr(), nil},
351 {c2.LocalAddr(), &UnixAddr{Name: laddr, Net: "unixgram"}},
352 {c2.RemoteAddr(), ta},
354 for _, ca := range connAddrs {
355 if !reflect.DeepEqual(ca.got, ca.want) {
356 t.Fatalf("got %#v; want %#v", ca.got, ca.want)
362 func TestUnixUnlink(t *testing.T) {
363 if !testableNetwork("unix") {
366 switch runtime.GOOS {
368 t.Skipf("skipping: %s does not support Unlink", runtime.GOOS)
371 name := testUnixAddr(t)
373 listen := func(t *testing.T) *UnixListener {
374 l, err := Listen("unix", name)
378 return l.(*UnixListener)
380 checkExists := func(t *testing.T, desc string) {
381 if _, err := os.Stat(name); err != nil {
382 t.Fatalf("unix socket does not exist %s: %v", desc, err)
385 checkNotExists := func(t *testing.T, desc string) {
386 if _, err := os.Stat(name); err == nil {
387 t.Fatalf("unix socket does exist %s: %v", desc, err)
391 // Listener should remove on close.
392 t.Run("Listen", func(t *testing.T) {
394 checkExists(t, "after Listen")
396 checkNotExists(t, "after Listener close")
399 // FileListener should not.
400 t.Run("FileListener", func(t *testing.T) {
403 l1, _ := FileListener(f)
404 checkExists(t, "after FileListener")
406 checkExists(t, "after File close")
408 checkExists(t, "after FileListener close")
410 checkNotExists(t, "after Listener close")
413 // Only first call to l.Close should remove.
414 t.Run("SecondClose", func(t *testing.T) {
416 checkExists(t, "after Listen")
418 checkNotExists(t, "after Listener close")
419 if err := os.WriteFile(name, []byte("hello world"), 0666); err != nil {
420 t.Fatalf("cannot recreate socket file: %v", err)
422 checkExists(t, "after writing temp file")
424 checkExists(t, "after second Listener close")
428 // SetUnlinkOnClose should do what it says.
430 t.Run("Listen/SetUnlinkOnClose(true)", func(t *testing.T) {
432 checkExists(t, "after Listen")
433 l.SetUnlinkOnClose(true)
435 checkNotExists(t, "after Listener close")
438 t.Run("Listen/SetUnlinkOnClose(false)", func(t *testing.T) {
440 checkExists(t, "after Listen")
441 l.SetUnlinkOnClose(false)
443 checkExists(t, "after Listener close")
447 t.Run("FileListener/SetUnlinkOnClose(true)", func(t *testing.T) {
450 l1, _ := FileListener(f)
451 checkExists(t, "after FileListener")
452 l1.(*UnixListener).SetUnlinkOnClose(true)
454 checkExists(t, "after File close")
456 checkNotExists(t, "after FileListener close")
460 t.Run("FileListener/SetUnlinkOnClose(false)", func(t *testing.T) {
463 l1, _ := FileListener(f)
464 checkExists(t, "after FileListener")
465 l1.(*UnixListener).SetUnlinkOnClose(false)
467 checkExists(t, "after File close")
469 checkExists(t, "after FileListener close")