mirror of
https://github.com/ergochat/ergo.git
synced 2024-11-24 21:09:30 +01:00
16ab0a67b5
Bumps [golang.org/x/crypto](https://github.com/golang/crypto) from 0.5.0 to 0.17.0. - [Commits](https://github.com/golang/crypto/compare/v0.5.0...v0.17.0) --- updated-dependencies: - dependency-name: golang.org/x/crypto dependency-type: direct:production ... Signed-off-by: dependabot[bot] <support@github.com>
92 lines
2.3 KiB
Go
92 lines
2.3 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.
|
|
|
|
//go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris || zos
|
|
|
|
package term
|
|
|
|
import (
|
|
"golang.org/x/sys/unix"
|
|
)
|
|
|
|
type state struct {
|
|
termios unix.Termios
|
|
}
|
|
|
|
func isTerminal(fd int) bool {
|
|
_, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
|
|
return err == nil
|
|
}
|
|
|
|
func makeRaw(fd int) (*State, error) {
|
|
termios, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
oldState := State{state{termios: *termios}}
|
|
|
|
// This attempts to replicate the behaviour documented for cfmakeraw in
|
|
// the termios(3) manpage.
|
|
termios.Iflag &^= unix.IGNBRK | unix.BRKINT | unix.PARMRK | unix.ISTRIP | unix.INLCR | unix.IGNCR | unix.ICRNL | unix.IXON
|
|
termios.Oflag &^= unix.OPOST
|
|
termios.Lflag &^= unix.ECHO | unix.ECHONL | unix.ICANON | unix.ISIG | unix.IEXTEN
|
|
termios.Cflag &^= unix.CSIZE | unix.PARENB
|
|
termios.Cflag |= unix.CS8
|
|
termios.Cc[unix.VMIN] = 1
|
|
termios.Cc[unix.VTIME] = 0
|
|
if err := unix.IoctlSetTermios(fd, ioctlWriteTermios, termios); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &oldState, nil
|
|
}
|
|
|
|
func getState(fd int) (*State, error) {
|
|
termios, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
return &State{state{termios: *termios}}, nil
|
|
}
|
|
|
|
func restore(fd int, state *State) error {
|
|
return unix.IoctlSetTermios(fd, ioctlWriteTermios, &state.termios)
|
|
}
|
|
|
|
func getSize(fd int) (width, height int, err error) {
|
|
ws, err := unix.IoctlGetWinsize(fd, unix.TIOCGWINSZ)
|
|
if err != nil {
|
|
return 0, 0, err
|
|
}
|
|
return int(ws.Col), int(ws.Row), nil
|
|
}
|
|
|
|
// passwordReader is an io.Reader that reads from a specific file descriptor.
|
|
type passwordReader int
|
|
|
|
func (r passwordReader) Read(buf []byte) (int, error) {
|
|
return unix.Read(int(r), buf)
|
|
}
|
|
|
|
func readPassword(fd int) ([]byte, error) {
|
|
termios, err := unix.IoctlGetTermios(fd, ioctlReadTermios)
|
|
if err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
newState := *termios
|
|
newState.Lflag &^= unix.ECHO
|
|
newState.Lflag |= unix.ICANON | unix.ISIG
|
|
newState.Iflag |= unix.ICRNL
|
|
if err := unix.IoctlSetTermios(fd, ioctlWriteTermios, &newState); err != nil {
|
|
return nil, err
|
|
}
|
|
|
|
defer unix.IoctlSetTermios(fd, ioctlWriteTermios, termios)
|
|
|
|
return readPasswordLine(passwordReader(fd))
|
|
}
|