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- // Copyright 2017 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.
- package net
- import (
- "bytes"
- "reflect"
- "syscall"
- "testing"
- "time"
- )
- func TestUnixgramAutobind(t *testing.T) {
- laddr := &UnixAddr{Name: "", Net: "unixgram"}
- c1, err := ListenUnixgram("unixgram", laddr)
- if err != nil {
- t.Fatal(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.Fatal(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) {
- laddr := &UnixAddr{Name: "", Net: "unix"}
- ln, err := ListenUnix("unix", laddr)
- if err != nil {
- t.Fatal(err)
- }
- ln.Close()
- }
- func TestUnixgramLinuxAbstractLongName(t *testing.T) {
- if !testableNetwork("unixgram") {
- t.Skip("abstract unix socket long name test")
- }
- // Create an abstract socket name whose length is exactly
- // the maximum RawSockkaddrUnix Path len
- rsu := syscall.RawSockaddrUnix{}
- addrBytes := make([]byte, len(rsu.Path))
- copy(addrBytes, "@abstract_test")
- addr := string(addrBytes)
- la, err := ResolveUnixAddr("unixgram", addr)
- if err != nil {
- t.Fatal(err)
- }
- c, err := ListenUnixgram("unixgram", la)
- if err != nil {
- t.Fatal(err)
- }
- defer c.Close()
- 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.Error(err)
- return
- }
- defer syscall.Close(s)
- rsa := &syscall.SockaddrUnix{Name: addr}
- if err := syscall.Sendto(s, data[:], 0, rsa); err != nil {
- t.Error(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.Fatal(err)
- }
- if from != nil {
- t.Fatalf("unexpected peer address: %v", from)
- }
- if !bytes.Equal(b[:n], data[:]) {
- t.Fatalf("got %v; want %v", b[:n], data[:])
- }
- }
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