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comparison vendor/golang.org/x/sys/unix/ioctl.go @ 66:787b5ee0289d draft

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Use vendored modules Signed-off-by: Izuru Yakumo <yakumo.izuru@chaotic.ninja>
author yakumo.izuru
date Sun, 23 Jul 2023 13:18:53 +0000
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65:6d985efa0f7a 66:787b5ee0289d
1 // Copyright 2018 The Go Authors. All rights reserved.
2 // Use of this source code is governed by a BSD-style
3 // license that can be found in the LICENSE file.
4
5 //go:build aix || darwin || dragonfly || freebsd || linux || netbsd || openbsd || solaris
6 // +build aix darwin dragonfly freebsd linux netbsd openbsd solaris
7
8 package unix
9
10 import (
11 "runtime"
12 "unsafe"
13 )
14
15 // ioctl itself should not be exposed directly, but additional get/set
16 // functions for specific types are permissible.
17
18 // IoctlSetInt performs an ioctl operation which sets an integer value
19 // on fd, using the specified request number.
20 func IoctlSetInt(fd int, req uint, value int) error {
21 return ioctl(fd, req, uintptr(value))
22 }
23
24 // IoctlSetPointerInt performs an ioctl operation which sets an
25 // integer value on fd, using the specified request number. The ioctl
26 // argument is called with a pointer to the integer value, rather than
27 // passing the integer value directly.
28 func IoctlSetPointerInt(fd int, req uint, value int) error {
29 v := int32(value)
30 return ioctl(fd, req, uintptr(unsafe.Pointer(&v)))
31 }
32
33 // IoctlSetWinsize performs an ioctl on fd with a *Winsize argument.
34 //
35 // To change fd's window size, the req argument should be TIOCSWINSZ.
36 func IoctlSetWinsize(fd int, req uint, value *Winsize) error {
37 // TODO: if we get the chance, remove the req parameter and
38 // hardcode TIOCSWINSZ.
39 err := ioctl(fd, req, uintptr(unsafe.Pointer(value)))
40 runtime.KeepAlive(value)
41 return err
42 }
43
44 // IoctlSetTermios performs an ioctl on fd with a *Termios.
45 //
46 // The req value will usually be TCSETA or TIOCSETA.
47 func IoctlSetTermios(fd int, req uint, value *Termios) error {
48 // TODO: if we get the chance, remove the req parameter.
49 err := ioctl(fd, req, uintptr(unsafe.Pointer(value)))
50 runtime.KeepAlive(value)
51 return err
52 }
53
54 // IoctlGetInt performs an ioctl operation which gets an integer value
55 // from fd, using the specified request number.
56 //
57 // A few ioctl requests use the return value as an output parameter;
58 // for those, IoctlRetInt should be used instead of this function.
59 func IoctlGetInt(fd int, req uint) (int, error) {
60 var value int
61 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
62 return value, err
63 }
64
65 func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
66 var value Winsize
67 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
68 return &value, err
69 }
70
71 func IoctlGetTermios(fd int, req uint) (*Termios, error) {
72 var value Termios
73 err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
74 return &value, err
75 }