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// 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 !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 TestUnixAutobind(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 TestUnixConnLocalAndRemoteNames(t *testing.T) {
for _, laddr := range []string{"", testUnixAddr()} {
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)
}
if runtime.GOOS == "linux" && 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()} {
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 != "" {
var err error
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)
}
}()
if runtime.GOOS == "linux" && 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)
}
}
}
}
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