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
|
// Code generated by cmd/cgo; DO NOT EDIT.
//line /workdir/go/src/os/signal/internal/pty/pty.go:1:1
// Copyright 2017 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.
// +build darwin dragonfly freebsd linux,!android netbsd openbsd
// +build cgo
// Package pty is a simple pseudo-terminal package for Unix systems,
// implemented by calling C functions via cgo.
// This is only used for testing the os/signal package.
package pty
/*
#define _XOPEN_SOURCE 600
#include <fcntl.h>
#include <stdlib.h>
#include <unistd.h>
*/
import _ "unsafe"
import (
"fmt"
"os"
"syscall"
)
type PtyError struct {
FuncName string
ErrorString string
Errno syscall.Errno
}
func ptyError(name string, err error) *PtyError {
return &PtyError{name, err.Error(), err.(syscall.Errno)}
}
func (e *PtyError) Error() string {
return fmt.Sprintf("%s: %s", e.FuncName, e.ErrorString)
}
// Open returns a master pty and the name of the linked slave tty.
func Open() (master *os.File, slave string, err error) {
m, err := (_C2func_posix_openpt)((_Ciconst_O_RDWR))
if err != nil {
return nil, "", ptyError("posix_openpt", err)
}
if _, err := (_C2func_grantpt)(m); err != nil {
(_Cfunc_close)(m)
return nil, "", ptyError("grantpt", err)
}
if _, err := (_C2func_unlockpt)(m); err != nil {
(_Cfunc_close)(m)
return nil, "", ptyError("unlockpt", err)
}
slave = (_Cfunc_GoString)((_Cfunc_ptsname)(m))
return os.NewFile(uintptr(m), "pty-master"), slave, nil
}
|
