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ceph-csi/vendor/golang.org/x/term/term_windows.go
Niels de Vos 2b7f078943 rebase: vendor golang.org/x/crypto and update to latest
The new SecretsMetadataKMS provider encrypts/decrypts DEKs as they are
stored in the metadata of volumes. The encryption/decryption uses
golang.org/x/crypto/scrypt to generate the encryption key from a
passphrase.

While vendoring golang.org/x/crypto, already vendored sub-packages have
been updated.

Signed-off-by: Niels de Vos <ndevos@redhat.com>
2021-03-12 10:11:47 +00:00

80 lines
2.1 KiB
Go

// Copyright 2019 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.
package term
import (
"os"
"golang.org/x/sys/windows"
)
type state struct {
mode uint32
}
func isTerminal(fd int) bool {
var st uint32
err := windows.GetConsoleMode(windows.Handle(fd), &st)
return err == nil
}
func makeRaw(fd int) (*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 getState(fd int) (*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 int, state *State) error {
return windows.SetConsoleMode(windows.Handle(fd), state.mode)
}
func getSize(fd int) (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 int) ([]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)
}