1 package dbus
2
3 import (
4 "encoding/binary"
5 "errors"
6 "io"
7 "unsafe"
8 )
9
10 var nativeEndian binary.ByteOrder
11
12 func detectEndianness() binary.ByteOrder {
13 var x uint32 = 0x01020304
14 if *(*byte)(unsafe.Pointer(&x)) == 0x01 {
15 return binary.BigEndian
16 }
17 return binary.LittleEndian
18 }
19
20 func init() {
21 nativeEndian = detectEndianness()
22 }
23
24 type genericTransport struct {
25 io.ReadWriteCloser
26 }
27
28 func (t genericTransport) SendNullByte() error {
29 _, err := t.Write([]byte{0})
30 return err
31 }
32
33 func (t genericTransport) SupportsUnixFDs() bool {
34 return false
35 }
36
37 func (t genericTransport) EnableUnixFDs() {}
38
39 func (t genericTransport) ReadMessage() (*Message, error) {
40 return DecodeMessage(t)
41 }
42
43 func (t genericTransport) SendMessage(msg *Message) error {
44 fds, err := msg.CountFds()
45 if err != nil {
46 return err
47 }
48 if fds != 0 {
49 return errors.New("dbus: unix fd passing not enabled")
50 }
51 return msg.EncodeTo(t, nativeEndian)
52 }
53
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