// Copyright 2017 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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package net
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import (
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"bytes"
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"reflect"
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"syscall"
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"testing"
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"time"
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)
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func TestUnixgramAutobind(t *testing.T) {
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laddr := &UnixAddr{Name: "", Net: "unixgram"}
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c1, err := ListenUnixgram("unixgram", laddr)
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if err != nil {
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t.Fatal(err)
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}
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defer c1.Close()
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// retrieve the autobind address
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autoAddr := c1.LocalAddr().(*UnixAddr)
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if len(autoAddr.Name) <= 1 {
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t.Fatalf("invalid autobind address: %v", autoAddr)
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}
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if autoAddr.Name[0] != '@' {
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t.Fatalf("invalid autobind address: %v", autoAddr)
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}
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c2, err := DialUnix("unixgram", nil, autoAddr)
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if err != nil {
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t.Fatal(err)
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}
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defer c2.Close()
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if !reflect.DeepEqual(c1.LocalAddr(), c2.RemoteAddr()) {
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t.Fatalf("expected autobind address %v, got %v", c1.LocalAddr(), c2.RemoteAddr())
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}
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}
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func TestUnixAutobindClose(t *testing.T) {
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laddr := &UnixAddr{Name: "", Net: "unix"}
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ln, err := ListenUnix("unix", laddr)
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if err != nil {
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t.Fatal(err)
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}
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ln.Close()
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}
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func TestUnixgramLinuxAbstractLongName(t *testing.T) {
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if !testableNetwork("unixgram") {
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t.Skip("abstract unix socket long name test")
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}
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// Create an abstract socket name whose length is exactly
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// the maximum RawSockkaddrUnix Path len
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rsu := syscall.RawSockaddrUnix{}
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addrBytes := make([]byte, len(rsu.Path))
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copy(addrBytes, "@abstract_test")
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addr := string(addrBytes)
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la, err := ResolveUnixAddr("unixgram", addr)
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if err != nil {
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t.Fatal(err)
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}
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c, err := ListenUnixgram("unixgram", la)
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if err != nil {
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t.Fatal(err)
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}
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defer c.Close()
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off := make(chan bool)
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data := [5]byte{1, 2, 3, 4, 5}
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go func() {
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defer func() { off <- true }()
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s, err := syscall.Socket(syscall.AF_UNIX, syscall.SOCK_DGRAM, 0)
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if err != nil {
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t.Error(err)
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return
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}
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defer syscall.Close(s)
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rsa := &syscall.SockaddrUnix{Name: addr}
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if err := syscall.Sendto(s, data[:], 0, rsa); err != nil {
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t.Error(err)
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return
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}
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}()
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<-off
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b := make([]byte, 64)
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c.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
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n, from, err := c.ReadFrom(b)
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if err != nil {
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t.Fatal(err)
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}
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if from != nil {
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t.Fatalf("unexpected peer address: %v", from)
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}
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if !bytes.Equal(b[:n], data[:]) {
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t.Fatalf("got %v; want %v", b[:n], data[:])
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}
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}
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