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
78
79
80
81
82
83
84
85
86
|
//go:build windows
// +build windows
package term
import (
"os"
"golang.org/x/sys/windows"
)
type state struct {
Mode uint32
}
func isTerminal(fd uintptr) bool {
var st uint32
err := windows.GetConsoleMode(windows.Handle(fd), &st)
return err == nil
}
func makeRaw(fd uintptr) (*State, error) {
var st uint32
if err := windows.GetConsoleMode(windows.Handle(fd), &st); err != nil {
return nil, err
}
raw := st &^ (windows.ENABLE_ECHO_INPUT | windows.ENABLE_PROCESSED_INPUT | windows.ENABLE_LINE_INPUT | windows.ENABLE_PROCESSED_OUTPUT)
if err := windows.SetConsoleMode(windows.Handle(fd), raw); err != nil {
return nil, err
}
return &State{state{st}}, nil
}
func setState(fd uintptr, state *State) error {
var mode uint32
if state != nil {
mode = state.Mode
}
return windows.SetConsoleMode(windows.Handle(fd), mode)
}
func getState(fd uintptr) (*State, error) {
var st uint32
if err := windows.GetConsoleMode(windows.Handle(fd), &st); err != nil {
return nil, err
}
return &State{state{st}}, nil
}
func restore(fd uintptr, state *State) error {
return windows.SetConsoleMode(windows.Handle(fd), state.Mode)
}
func getSize(fd uintptr) (width, height int, err error) {
var info windows.ConsoleScreenBufferInfo
if err := windows.GetConsoleScreenBufferInfo(windows.Handle(fd), &info); err != nil {
return 0, 0, err
}
return int(info.Window.Right - info.Window.Left + 1), int(info.Window.Bottom - info.Window.Top + 1), nil
}
func readPassword(fd uintptr) ([]byte, error) {
var st uint32
if err := windows.GetConsoleMode(windows.Handle(fd), &st); err != nil {
return nil, err
}
old := st
st &^= (windows.ENABLE_ECHO_INPUT | windows.ENABLE_LINE_INPUT)
st |= (windows.ENABLE_PROCESSED_OUTPUT | windows.ENABLE_PROCESSED_INPUT)
if err := windows.SetConsoleMode(windows.Handle(fd), st); err != nil {
return nil, err
}
defer windows.SetConsoleMode(windows.Handle(fd), old)
var h windows.Handle
p, _ := windows.GetCurrentProcess()
if err := windows.DuplicateHandle(p, windows.Handle(fd), p, &h, 0, false, windows.DUPLICATE_SAME_ACCESS); err != nil {
return nil, err
}
f := os.NewFile(uintptr(h), "stdin")
defer f.Close()
return readPasswordLine(f)
}
|
