libgo/go/net/rawconn_windows_test.go

   1 // Copyright 2017 The Go Authors. All rights reserved.
   2 // Use of this source code is governed by a BSD-style
   3 // license that can be found in the LICENSE file.
   4
   5 package net
   6
   7 import (
   8         "syscall"
   9         "testing"
  10 )
  11
  12 func TestRawConn(t *testing.T) {
  13         c, err := newLocalPacketListener("udp")
  14         if err != nil {
  15                 t.Fatal(err)
  16         }
  17         defer c.Close()
  18         cc, err := c.(*UDPConn).SyscallConn()
  19         if err != nil {
  20                 t.Fatal(err)
  21         }
  22
  23         var operr error
  24         fn := func(s uintptr) {
  25                 operr = syscall.SetsockoptInt(syscall.Handle(s), syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1)
  26         }
  27         err = cc.Control(fn)
  28         if err != nil || operr != nil {
  29                 t.Fatal(err, operr)
  30         }
  31         c.Close()
  32         err = cc.Control(fn)
  33         if err == nil {
  34                 t.Fatal("should fail")
  35         }
  36 }