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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.
// +build darwin dragonfly freebsd linux netbsd openbsd solaris
package net
import (
"bytes"
"syscall"
"testing"
)
func TestRawConn(t *testing.T) {
handler := func(ls *localServer, ln Listener) {
c, err := ln.Accept()
if err != nil {
t.Error(err)
return
}
defer c.Close()
var b [32]byte
n, err := c.Read(b[:])
if err != nil {
t.Error(err)
return
}
if _, err := c.Write(b[:n]); err != nil {
t.Error(err)
return
}
}
ls, err := newLocalServer("tcp")
if err != nil {
t.Fatal(err)
}
defer ls.teardown()
if err := ls.buildup(handler); err != nil {
t.Fatal(err)
}
c, err := Dial(ls.Listener.Addr().Network(), ls.Listener.Addr().String())
if err != nil {
t.Fatal(err)
}
defer c.Close()
cc, err := c.(*TCPConn).SyscallConn()
if err != nil {
t.Fatal(err)
}
var operr error
data := []byte("HELLO-R-U-THERE")
err = cc.Write(func(s uintptr) bool {
_, operr = syscall.Write(int(s), data)
if operr == syscall.EAGAIN {
return false
}
return true
})
if err != nil || operr != nil {
t.Fatal(err, operr)
}
var nr int
var b [32]byte
err = cc.Read(func(s uintptr) bool {
nr, operr = syscall.Read(int(s), b[:])
if operr == syscall.EAGAIN {
return false
}
return true
})
if err != nil || operr != nil {
t.Fatal(err, operr)
}
if bytes.Compare(b[:nr], data) != 0 {
t.Fatalf("got %#v; want %#v", b[:nr], data)
}
fn := func(s uintptr) {
operr = syscall.SetsockoptInt(int(s), syscall.SOL_SOCKET, syscall.SO_REUSEADDR, 1)
}
err = cc.Control(fn)
if err != nil || operr != nil {
t.Fatal(err, operr)
}
c.Close()
err = cc.Control(fn)
if err == nil {
t.Fatal("should fail")
}
}
func TestRawConnListener(t *testing.T) {
ln, err := newLocalListener("tcp")
if err != nil {
t.Fatal(err)
}
defer ln.Close()
cc, err := ln.(*TCPListener).SyscallConn()
if err != nil {
t.Fatal(err)
}
called := false
op := func(uintptr) bool {
called = true
return true
}
err = cc.Write(op)
if err == nil {
t.Error("Write should return an error")
}
if called {
t.Error("Write shouldn't call op")
}
called = false
err = cc.Read(op)
if err == nil {
t.Error("Read should return an error")
}
if called {
t.Error("Read shouldn't call op")
}
var operr error
fn := func(s uintptr) {
_, operr = syscall.GetsockoptInt(int(s), syscall.SOL_SOCKET, syscall.SO_REUSEADDR)
}
err = cc.Control(fn)
if err != nil || operr != nil {
t.Fatal(err, operr)
}
ln.Close()
err = cc.Control(fn)
if err == nil {
t.Fatal("Control after Close should fail")
}
}
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