1 files changed, 333 insertions, 0 deletions
diff --git a/src/net/unix_test.go b/src/net/unix_test.go
new file mode 100644
index 000000000..1cdff3908
--- /dev/null
+++ b/src/net/unix_test.go
@@ -0,0 +1,333 @@
+// 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.
+
+// +build !nacl,!plan9,!windows
+
+package net
+
+import (
+	"bytes"
+	"os"
+	"reflect"
+	"runtime"
+	"syscall"
+	"testing"
+	"time"
+)
+
+func TestReadUnixgramWithUnnamedSocket(t *testing.T) {
+	addr := testUnixAddr()
+	la, err := ResolveUnixAddr("unixgram", addr)
+	if err != nil {
+		t.Fatalf("ResolveUnixAddr failed: %v", err)
+	}
+	c, err := ListenUnixgram("unixgram", la)
+	if err != nil {
+		t.Fatalf("ListenUnixgram failed: %v", err)
+	}
+	defer func() {
+		c.Close()
+		os.Remove(addr)
+	}()
+
+	off := make(chan bool)
+	data := [5]byte{1, 2, 3, 4, 5}
+	go func() {
+		defer func() { off <- true }()
+		s, err := syscall.Socket(syscall.AF_UNIX, syscall.SOCK_DGRAM, 0)
+		if err != nil {
+			t.Errorf("syscall.Socket failed: %v", err)
+			return
+		}
+		defer syscall.Close(s)
+		rsa := &syscall.SockaddrUnix{Name: addr}
+		if err := syscall.Sendto(s, data[:], 0, rsa); err != nil {
+			t.Errorf("syscall.Sendto failed: %v", err)
+			return
+		}
+	}()
+
+	<-off
+	b := make([]byte, 64)
+	c.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
+	n, from, err := c.ReadFrom(b)
+	if err != nil {
+		t.Fatalf("UnixConn.ReadFrom failed: %v", err)
+	}
+	if from != nil {
+		t.Fatalf("neighbor address is %v", from)
+	}
+	if !bytes.Equal(b[:n], data[:]) {
+		t.Fatalf("got %v, want %v", b[:n], data[:])
+	}
+}
+
+func TestReadUnixgramWithZeroBytesBuffer(t *testing.T) {
+	// issue 4352: Recvfrom failed with "address family not
+	// supported by protocol family" if zero-length buffer provided
+
+	addr := testUnixAddr()
+	la, err := ResolveUnixAddr("unixgram", addr)
+	if err != nil {
+		t.Fatalf("ResolveUnixAddr failed: %v", err)
+	}
+	c, err := ListenUnixgram("unixgram", la)
+	if err != nil {
+		t.Fatalf("ListenUnixgram failed: %v", err)
+	}
+	defer func() {
+		c.Close()
+		os.Remove(addr)
+	}()
+
+	off := make(chan bool)
+	go func() {
+		defer func() { off <- true }()
+		c, err := DialUnix("unixgram", nil, la)
+		if err != nil {
+			t.Errorf("DialUnix failed: %v", err)
+			return
+		}
+		defer c.Close()
+		if _, err := c.Write([]byte{1, 2, 3, 4, 5}); err != nil {
+			t.Errorf("UnixConn.Write failed: %v", err)
+			return
+		}
+	}()
+
+	<-off
+	c.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
+	_, from, err := c.ReadFrom(nil)
+	if err != nil {
+		t.Fatalf("UnixConn.ReadFrom failed: %v", err)
+	}
+	if from != nil {
+		t.Fatalf("neighbor address is %v", from)
+	}
+}
+
+func TestUnixgramAutobind(t *testing.T) {
+	if runtime.GOOS != "linux" {
+		t.Skip("skipping: autobind is linux only")
+	}
+
+	laddr := &UnixAddr{Name: "", Net: "unixgram"}
+	c1, err := ListenUnixgram("unixgram", laddr)
+	if err != nil {
+		t.Fatalf("ListenUnixgram failed: %v", err)
+	}
+	defer c1.Close()
+
+	// retrieve the autobind address
+	autoAddr := c1.LocalAddr().(*UnixAddr)
+	if len(autoAddr.Name) <= 1 {
+		t.Fatalf("invalid autobind address: %v", autoAddr)
+	}
+	if autoAddr.Name[0] != '@' {
+		t.Fatalf("invalid autobind address: %v", autoAddr)
+	}
+
+	c2, err := DialUnix("unixgram", nil, autoAddr)
+	if err != nil {
+		t.Fatalf("DialUnix failed: %v", err)
+	}
+	defer c2.Close()
+
+	if !reflect.DeepEqual(c1.LocalAddr(), c2.RemoteAddr()) {
+		t.Fatalf("expected autobind address %v, got %v", c1.LocalAddr(), c2.RemoteAddr())
+	}
+}
+
+func TestUnixAutobindClose(t *testing.T) {
+	if runtime.GOOS != "linux" {
+		t.Skip("skipping: autobind is linux only")
+	}
+	laddr := &UnixAddr{Name: "", Net: "unix"}
+	ln, err := ListenUnix("unix", laddr)
+	if err != nil {
+		t.Fatalf("ListenUnix failed: %v", err)
+	}
+	ln.Close()
+}
+
+func TestUnixgramWrite(t *testing.T) {
+	addr := testUnixAddr()
+	laddr, err := ResolveUnixAddr("unixgram", addr)
+	if err != nil {
+		t.Fatalf("ResolveUnixAddr failed: %v", err)
+	}
+	c, err := ListenPacket("unixgram", addr)
+	if err != nil {
+		t.Fatalf("ListenPacket failed: %v", err)
+	}
+	defer os.Remove(addr)
+	defer c.Close()
+
+	testUnixgramWriteConn(t, laddr)
+	testUnixgramWritePacketConn(t, laddr)
+}
+
+func testUnixgramWriteConn(t *testing.T, raddr *UnixAddr) {
+	c, err := Dial("unixgram", raddr.String())
+	if err != nil {
+		t.Fatalf("Dial failed: %v", err)
+	}
+	defer c.Close()
+
+	if _, err := c.(*UnixConn).WriteToUnix([]byte("Connection-oriented mode socket"), raddr); err == nil {
+		t.Fatal("WriteToUnix should fail")
+	} else if err.(*OpError).Err != ErrWriteToConnected {
+		t.Fatalf("WriteToUnix should fail as ErrWriteToConnected: %v", err)
+	}
+	if _, err = c.(*UnixConn).WriteTo([]byte("Connection-oriented mode socket"), raddr); err == nil {
+		t.Fatal("WriteTo should fail")
+	} else if err.(*OpError).Err != ErrWriteToConnected {
+		t.Fatalf("WriteTo should fail as ErrWriteToConnected: %v", err)
+	}
+	if _, _, err = c.(*UnixConn).WriteMsgUnix([]byte("Connection-oriented mode socket"), nil, raddr); err == nil {
+		t.Fatal("WriteTo should fail")
+	} else if err.(*OpError).Err != ErrWriteToConnected {
+		t.Fatalf("WriteMsgUnix should fail as ErrWriteToConnected: %v", err)
+	}
+	if _, err := c.Write([]byte("Connection-oriented mode socket")); err != nil {
+		t.Fatalf("Write failed: %v", err)
+	}
+}
+
+func testUnixgramWritePacketConn(t *testing.T, raddr *UnixAddr) {
+	addr := testUnixAddr()
+	c, err := ListenPacket("unixgram", addr)
+	if err != nil {
+		t.Fatalf("ListenPacket failed: %v", err)
+	}
+	defer os.Remove(addr)
+	defer c.Close()
+
+	if _, err := c.(*UnixConn).WriteToUnix([]byte("Connectionless mode socket"), raddr); err != nil {
+		t.Fatalf("WriteToUnix failed: %v", err)
+	}
+	if _, err := c.WriteTo([]byte("Connectionless mode socket"), raddr); err != nil {
+		t.Fatalf("WriteTo failed: %v", err)
+	}
+	if _, _, err := c.(*UnixConn).WriteMsgUnix([]byte("Connectionless mode socket"), nil, raddr); err != nil {
+		t.Fatalf("WriteMsgUnix failed: %v", err)
+	}
+	if _, err := c.(*UnixConn).Write([]byte("Connectionless mode socket")); err == nil {
+		t.Fatal("Write should fail")
+	}
+}
+
+func TestUnixConnLocalAndRemoteNames(t *testing.T) {
+	for _, laddr := range []string{"", testUnixAddr()} {
+		laddr := laddr
+		taddr := testUnixAddr()
+		ta, err := ResolveUnixAddr("unix", taddr)
+		if err != nil {
+			t.Fatalf("ResolveUnixAddr failed: %v", err)
+		}
+		ln, err := ListenUnix("unix", ta)
+		if err != nil {
+			t.Fatalf("ListenUnix failed: %v", err)
+		}
+		defer func() {
+			ln.Close()
+			os.Remove(taddr)
+		}()
+
+		done := make(chan int)
+		go transponder(t, ln, done)
+
+		la, err := ResolveUnixAddr("unix", laddr)
+		if err != nil {
+			t.Fatalf("ResolveUnixAddr failed: %v", err)
+		}
+		c, err := DialUnix("unix", la, ta)
+		if err != nil {
+			t.Fatalf("DialUnix failed: %v", err)
+		}
+		defer func() {
+			c.Close()
+			if la != nil {
+				defer os.Remove(laddr)
+			}
+		}()
+		if _, err := c.Write([]byte("UNIXCONN LOCAL AND REMOTE NAME TEST")); err != nil {
+			t.Fatalf("UnixConn.Write failed: %v", err)
+		}
+
+		switch runtime.GOOS {
+		case "android", "linux":
+			if laddr == "" {
+				laddr = "@" // autobind feature
+			}
+		}
+		var connAddrs = [3]struct{ got, want Addr }{
+			{ln.Addr(), ta},
+			{c.LocalAddr(), &UnixAddr{Name: laddr, Net: "unix"}},
+			{c.RemoteAddr(), ta},
+		}
+		for _, ca := range connAddrs {
+			if !reflect.DeepEqual(ca.got, ca.want) {
+				t.Fatalf("got %#v, expected %#v", ca.got, ca.want)
+			}
+		}
+
+		<-done
+	}
+}
+
+func TestUnixgramConnLocalAndRemoteNames(t *testing.T) {
+	for _, laddr := range []string{"", testUnixAddr()} {
+		laddr := laddr
+		taddr := testUnixAddr()
+		ta, err := ResolveUnixAddr("unixgram", taddr)
+		if err != nil {
+			t.Fatalf("ResolveUnixAddr failed: %v", err)
+		}
+		c1, err := ListenUnixgram("unixgram", ta)
+		if err != nil {
+			t.Fatalf("ListenUnixgram failed: %v", err)
+		}
+		defer func() {
+			c1.Close()
+			os.Remove(taddr)
+		}()
+
+		var la *UnixAddr
+		if laddr != "" {
+			if la, err = ResolveUnixAddr("unixgram", laddr); err != nil {
+				t.Fatalf("ResolveUnixAddr failed: %v", err)
+			}
+		}
+		c2, err := DialUnix("unixgram", la, ta)
+		if err != nil {
+			t.Fatalf("DialUnix failed: %v", err)
+		}
+		defer func() {
+			c2.Close()
+			if la != nil {
+				defer os.Remove(laddr)
+			}
+		}()
+
+		switch runtime.GOOS {
+		case "android", "linux":
+			if laddr == "" {
+				laddr = "@" // autobind feature
+			}
+		}
+
+		var connAddrs = [4]struct{ got, want Addr }{
+			{c1.LocalAddr(), ta},
+			{c1.RemoteAddr(), nil},
+			{c2.LocalAddr(), &UnixAddr{Name: laddr, Net: "unixgram"}},
+			{c2.RemoteAddr(), ta},
+		}
+		for _, ca := range connAddrs {
+			if !reflect.DeepEqual(ca.got, ca.want) {
+				t.Fatalf("got %#v, expected %#v", ca.got, ca.want)
+			}
+		}
+	}
+}