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8dc2499aa6
gotools/ * Makefile.am (go_cmd_cgo_files): Add ast_go118.go (check-go-tool): Copy golang.org/x/tools directories. * Makefile.in: Regenerate. Reviewed-on: https://go-review.googlesource.com/c/gofrontend/+/384695
464 lines
10 KiB
Go
464 lines
10 KiB
Go
// Copyright 2013 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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//go:build !js && !plan9 && !windows
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package net
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import (
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"bytes"
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"internal/testenv"
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"os"
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"reflect"
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"runtime"
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"syscall"
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"testing"
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"time"
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)
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func TestReadUnixgramWithUnnamedSocket(t *testing.T) {
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if !testableNetwork("unixgram") {
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t.Skip("unixgram test")
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}
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if runtime.GOOS == "openbsd" {
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testenv.SkipFlaky(t, 15157)
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}
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addr := testUnixAddr(t)
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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 func() {
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c.Close()
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os.Remove(addr)
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}()
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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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func TestUnixgramZeroBytePayload(t *testing.T) {
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if !testableNetwork("unixgram") {
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t.Skip("unixgram test")
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}
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c1 := newLocalPacketListener(t, "unixgram")
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defer os.Remove(c1.LocalAddr().String())
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defer c1.Close()
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c2, err := Dial("unixgram", c1.LocalAddr().String())
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if err != nil {
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t.Fatal(err)
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}
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defer os.Remove(c2.LocalAddr().String())
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defer c2.Close()
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for _, genericRead := range []bool{false, true} {
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n, err := c2.Write(nil)
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if err != nil {
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t.Fatal(err)
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}
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if n != 0 {
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t.Errorf("got %d; want 0", n)
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}
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c1.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
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var b [1]byte
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var peer Addr
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if genericRead {
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_, err = c1.(Conn).Read(b[:])
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} else {
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_, peer, err = c1.ReadFrom(b[:])
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}
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switch err {
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case nil: // ReadFrom succeeds
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if peer != nil { // peer is connected-mode
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t.Fatalf("unexpected peer address: %v", peer)
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}
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default: // Read may timeout, it depends on the platform
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if !isDeadlineExceeded(err) {
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t.Fatal(err)
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}
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}
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}
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}
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func TestUnixgramZeroByteBuffer(t *testing.T) {
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if !testableNetwork("unixgram") {
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t.Skip("unixgram test")
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}
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// issue 4352: Recvfrom failed with "address family not
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// supported by protocol family" if zero-length buffer provided
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c1 := newLocalPacketListener(t, "unixgram")
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defer os.Remove(c1.LocalAddr().String())
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defer c1.Close()
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c2, err := Dial("unixgram", c1.LocalAddr().String())
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if err != nil {
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t.Fatal(err)
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}
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defer os.Remove(c2.LocalAddr().String())
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defer c2.Close()
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b := []byte("UNIXGRAM ZERO BYTE BUFFER TEST")
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for _, genericRead := range []bool{false, true} {
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n, err := c2.Write(b)
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if err != nil {
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t.Fatal(err)
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}
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if n != len(b) {
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t.Errorf("got %d; want %d", n, len(b))
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}
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c1.SetReadDeadline(time.Now().Add(100 * time.Millisecond))
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var peer Addr
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if genericRead {
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_, err = c1.(Conn).Read(nil)
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} else {
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_, peer, err = c1.ReadFrom(nil)
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}
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switch err {
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case nil: // ReadFrom succeeds
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if peer != nil { // peer is connected-mode
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t.Fatalf("unexpected peer address: %v", peer)
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}
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default: // Read may timeout, it depends on the platform
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if !isDeadlineExceeded(err) {
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t.Fatal(err)
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}
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}
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}
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}
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func TestUnixgramWrite(t *testing.T) {
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if !testableNetwork("unixgram") {
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t.Skip("unixgram test")
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}
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addr := testUnixAddr(t)
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laddr, 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 := ListenPacket("unixgram", addr)
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if err != nil {
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t.Fatal(err)
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}
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defer os.Remove(addr)
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defer c.Close()
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testUnixgramWriteConn(t, laddr)
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testUnixgramWritePacketConn(t, laddr)
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}
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func testUnixgramWriteConn(t *testing.T, raddr *UnixAddr) {
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c, err := Dial("unixgram", raddr.String())
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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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b := []byte("CONNECTED-MODE SOCKET")
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if _, err := c.(*UnixConn).WriteToUnix(b, raddr); err == nil {
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t.Fatal("should fail")
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} else if err.(*OpError).Err != ErrWriteToConnected {
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t.Fatalf("should fail as ErrWriteToConnected: %v", err)
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}
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if _, err = c.(*UnixConn).WriteTo(b, raddr); err == nil {
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t.Fatal("should fail")
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} else if err.(*OpError).Err != ErrWriteToConnected {
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t.Fatalf("should fail as ErrWriteToConnected: %v", err)
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}
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if _, _, err = c.(*UnixConn).WriteMsgUnix(b, nil, raddr); err == nil {
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t.Fatal("should fail")
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} else if err.(*OpError).Err != ErrWriteToConnected {
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t.Fatalf("should fail as ErrWriteToConnected: %v", err)
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}
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if _, err := c.Write(b); err != nil {
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t.Fatal(err)
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}
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}
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func testUnixgramWritePacketConn(t *testing.T, raddr *UnixAddr) {
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addr := testUnixAddr(t)
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c, err := ListenPacket("unixgram", addr)
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if err != nil {
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t.Fatal(err)
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}
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defer os.Remove(addr)
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defer c.Close()
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b := []byte("UNCONNECTED-MODE SOCKET")
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if _, err := c.(*UnixConn).WriteToUnix(b, raddr); err != nil {
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t.Fatal(err)
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}
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if _, err := c.WriteTo(b, raddr); err != nil {
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t.Fatal(err)
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}
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if _, _, err := c.(*UnixConn).WriteMsgUnix(b, nil, raddr); err != nil {
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t.Fatal(err)
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}
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if _, err := c.(*UnixConn).Write(b); err == nil {
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t.Fatal("should fail")
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}
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}
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func TestUnixConnLocalAndRemoteNames(t *testing.T) {
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if !testableNetwork("unix") {
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t.Skip("unix test")
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}
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handler := func(ls *localServer, ln Listener) {}
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for _, laddr := range []string{"", testUnixAddr(t)} {
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laddr := laddr
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taddr := testUnixAddr(t)
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ta, err := ResolveUnixAddr("unix", taddr)
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if err != nil {
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t.Fatal(err)
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}
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ln, err := ListenUnix("unix", ta)
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if err != nil {
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t.Fatal(err)
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}
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ls := (&streamListener{Listener: ln}).newLocalServer()
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defer ls.teardown()
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if err := ls.buildup(handler); err != nil {
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t.Fatal(err)
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}
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la, err := ResolveUnixAddr("unix", laddr)
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if err != nil {
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t.Fatal(err)
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}
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c, err := DialUnix("unix", la, ta)
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if err != nil {
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t.Fatal(err)
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}
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defer func() {
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c.Close()
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if la != nil {
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defer os.Remove(laddr)
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}
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}()
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if _, err := c.Write([]byte("UNIXCONN LOCAL AND REMOTE NAME TEST")); err != nil {
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t.Fatal(err)
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}
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switch runtime.GOOS {
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case "android", "linux":
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if laddr == "" {
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laddr = "@" // autobind feature
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}
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}
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var connAddrs = [3]struct{ got, want Addr }{
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{ln.Addr(), ta},
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{c.LocalAddr(), &UnixAddr{Name: laddr, Net: "unix"}},
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{c.RemoteAddr(), ta},
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}
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for _, ca := range connAddrs {
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if !reflect.DeepEqual(ca.got, ca.want) {
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t.Fatalf("got %#v, expected %#v", ca.got, ca.want)
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}
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}
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}
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}
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func TestUnixgramConnLocalAndRemoteNames(t *testing.T) {
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if !testableNetwork("unixgram") {
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t.Skip("unixgram test")
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}
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for _, laddr := range []string{"", testUnixAddr(t)} {
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laddr := laddr
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taddr := testUnixAddr(t)
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ta, err := ResolveUnixAddr("unixgram", taddr)
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if err != nil {
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t.Fatal(err)
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}
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c1, err := ListenUnixgram("unixgram", ta)
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if err != nil {
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t.Fatal(err)
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}
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defer func() {
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c1.Close()
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os.Remove(taddr)
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}()
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var la *UnixAddr
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if laddr != "" {
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if la, err = ResolveUnixAddr("unixgram", laddr); err != nil {
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t.Fatal(err)
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}
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}
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c2, err := DialUnix("unixgram", la, ta)
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if err != nil {
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t.Fatal(err)
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}
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defer func() {
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c2.Close()
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if la != nil {
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defer os.Remove(laddr)
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}
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}()
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switch runtime.GOOS {
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case "android", "linux":
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if laddr == "" {
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laddr = "@" // autobind feature
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}
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}
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var connAddrs = [4]struct{ got, want Addr }{
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{c1.LocalAddr(), ta},
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{c1.RemoteAddr(), nil},
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{c2.LocalAddr(), &UnixAddr{Name: laddr, Net: "unixgram"}},
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{c2.RemoteAddr(), ta},
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}
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for _, ca := range connAddrs {
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if !reflect.DeepEqual(ca.got, ca.want) {
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t.Fatalf("got %#v; want %#v", ca.got, ca.want)
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}
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}
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}
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}
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func TestUnixUnlink(t *testing.T) {
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if !testableNetwork("unix") {
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t.Skip("unix test")
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}
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name := testUnixAddr(t)
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listen := func(t *testing.T) *UnixListener {
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l, err := Listen("unix", name)
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if err != nil {
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t.Fatal(err)
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}
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return l.(*UnixListener)
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}
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checkExists := func(t *testing.T, desc string) {
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if _, err := os.Stat(name); err != nil {
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t.Fatalf("unix socket does not exist %s: %v", desc, err)
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}
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}
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checkNotExists := func(t *testing.T, desc string) {
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if _, err := os.Stat(name); err == nil {
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t.Fatalf("unix socket does exist %s: %v", desc, err)
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}
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}
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// Listener should remove on close.
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t.Run("Listen", func(t *testing.T) {
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l := listen(t)
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checkExists(t, "after Listen")
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l.Close()
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checkNotExists(t, "after Listener close")
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})
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// FileListener should not.
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t.Run("FileListener", func(t *testing.T) {
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l := listen(t)
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f, _ := l.File()
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l1, _ := FileListener(f)
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checkExists(t, "after FileListener")
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f.Close()
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checkExists(t, "after File close")
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l1.Close()
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checkExists(t, "after FileListener close")
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l.Close()
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checkNotExists(t, "after Listener close")
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})
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// Only first call to l.Close should remove.
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t.Run("SecondClose", func(t *testing.T) {
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l := listen(t)
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checkExists(t, "after Listen")
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l.Close()
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checkNotExists(t, "after Listener close")
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if err := os.WriteFile(name, []byte("hello world"), 0666); err != nil {
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t.Fatalf("cannot recreate socket file: %v", err)
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}
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checkExists(t, "after writing temp file")
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l.Close()
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checkExists(t, "after second Listener close")
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os.Remove(name)
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})
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// SetUnlinkOnClose should do what it says.
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t.Run("Listen/SetUnlinkOnClose(true)", func(t *testing.T) {
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l := listen(t)
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checkExists(t, "after Listen")
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l.SetUnlinkOnClose(true)
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l.Close()
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checkNotExists(t, "after Listener close")
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})
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t.Run("Listen/SetUnlinkOnClose(false)", func(t *testing.T) {
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l := listen(t)
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checkExists(t, "after Listen")
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l.SetUnlinkOnClose(false)
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l.Close()
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checkExists(t, "after Listener close")
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os.Remove(name)
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})
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t.Run("FileListener/SetUnlinkOnClose(true)", func(t *testing.T) {
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l := listen(t)
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f, _ := l.File()
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l1, _ := FileListener(f)
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checkExists(t, "after FileListener")
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l1.(*UnixListener).SetUnlinkOnClose(true)
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f.Close()
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checkExists(t, "after File close")
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l1.Close()
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checkNotExists(t, "after FileListener close")
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l.Close()
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})
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t.Run("FileListener/SetUnlinkOnClose(false)", func(t *testing.T) {
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l := listen(t)
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f, _ := l.File()
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l1, _ := FileListener(f)
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checkExists(t, "after FileListener")
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l1.(*UnixListener).SetUnlinkOnClose(false)
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f.Close()
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checkExists(t, "after File close")
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l1.Close()
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checkExists(t, "after FileListener close")
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l.Close()
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})
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}
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