1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
|
/* SPDX-License-Identifier: MIT
*
* Copyright (C) 2019 WireGuard LLC. All Rights Reserved.
*/
package manager
import (
"os"
"strconv"
"golang.org/x/sys/windows"
)
type pipeRWC struct {
reader *os.File
writer *os.File
}
func (p *pipeRWC) Read(b []byte) (int, error) {
return p.reader.Read(b)
}
func (p *pipeRWC) Write(b []byte) (int, error) {
return p.writer.Write(b)
}
func (p *pipeRWC) Close() error {
err1 := p.writer.Close()
err2 := p.reader.Close()
if err1 != nil {
return err1
}
return err2
}
func makeInheritableAndGetStr(f *os.File) (str string, err error) {
sc, err := f.SyscallConn()
if err != nil {
return
}
err2 := sc.Control(func(fd uintptr) {
err = windows.SetHandleInformation(windows.Handle(fd), windows.HANDLE_FLAG_INHERIT, windows.HANDLE_FLAG_INHERIT)
str = strconv.FormatUint(uint64(fd), 10)
})
if err2 != nil {
err = err2
}
return
}
func inheritableEvents() (ourEvents *os.File, theirEvents *os.File, theirEventStr string, err error) {
theirEvents, ourEvents, err = os.Pipe()
if err != nil {
return
}
theirEventStr, err = makeInheritableAndGetStr(theirEvents)
return
}
func inheritableSocketpairEmulation() (ourReader *os.File, theirReader *os.File, theirReaderStr string, ourWriter *os.File, theirWriter *os.File, theirWriterStr string, err error) {
ourReader, theirWriter, err = os.Pipe()
if err != nil {
return
}
theirWriterStr, err = makeInheritableAndGetStr(theirWriter)
if err != nil {
return
}
theirReader, ourWriter, err = os.Pipe()
if err != nil {
return
}
theirReaderStr, err = makeInheritableAndGetStr(theirReader)
return
}
|