rss-tools @ master

// Copyright 2018 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 || solaris

package unix

import "unsafe"

// ioctl itself should not be exposed directly, but additional get/set

// functions for specific types are permissible.

// IoctlSetInt performs an ioctl operation which sets an integer value

// on fd, using the specified request number.

func IoctlSetInt(fd int, req int, value int) error {

	return ioctl(fd, req, uintptr(value))

}

// IoctlSetPointerInt performs an ioctl operation which sets an

// integer value on fd, using the specified request number. The ioctl

// argument is called with a pointer to the integer value, rather than

// passing the integer value directly.

func IoctlSetPointerInt(fd int, req int, value int) error {

	v := int32(value)

	return ioctlPtr(fd, req, unsafe.Pointer(&v))

}

// IoctlSetString performs an ioctl operation which sets a string value

// on fd, using the specified request number.

func IoctlSetString(fd int, req int, value string) error {

	bs := append([]byte(value), 0)

	return ioctlPtr(fd, req, unsafe.Pointer(&bs[0]))

}

// IoctlSetWinsize performs an ioctl on fd with a *Winsize argument.

//

// To change fd's window size, the req argument should be TIOCSWINSZ.

func IoctlSetWinsize(fd int, req int, value *Winsize) error {

	// TODO: if we get the chance, remove the req parameter and

	// hardcode TIOCSWINSZ.

	return ioctlPtr(fd, req, unsafe.Pointer(value))

}

// IoctlSetTermios performs an ioctl on fd with a *Termios.

//

// The req value will usually be TCSETA or TIOCSETA.

func IoctlSetTermios(fd int, req int, value *Termios) error {

	// TODO: if we get the chance, remove the req parameter.

	return ioctlPtr(fd, req, unsafe.Pointer(value))

}

// IoctlGetInt performs an ioctl operation which gets an integer value

// from fd, using the specified request number.

//

// A few ioctl requests use the return value as an output parameter;

// for those, IoctlRetInt should be used instead of this function.

func IoctlGetInt(fd int, req int) (int, error) {

	var value int

	err := ioctlPtr(fd, req, unsafe.Pointer(&value))

	return value, err

}

func IoctlGetWinsize(fd int, req int) (*Winsize, error) {

	var value Winsize

	err := ioctlPtr(fd, req, unsafe.Pointer(&value))

	return &value, err

}

func IoctlGetTermios(fd int, req int) (*Termios, error) {

	var value Termios

	err := ioctlPtr(fd, req, unsafe.Pointer(&value))

	return &value, err

}