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Currently, only solaris provides IoctlSetString. However, it might be useful on other platforms too, e.g. for SIOCBRADDBR on linux. Change-Id: I19ed47a3e4ed0180ba6777bc193e32bfb61c0506 Reviewed-on: https://go-review.googlesource.com/c/sys/+/720200 Reviewed-by: Michael Pratt <mpratt@google.com> Reviewed-by: Ian Lance Taylor <iant@golang.org> Reviewed-by: Florian Lehner <lehner.florian86@gmail.com> LUCI-TryBot-Result: Go LUCI <golang-scoped@luci-project-accounts.iam.gserviceaccount.com> Auto-Submit: Tobias Klauser <tobias.klauser@gmail.com> Reviewed-by: Cherry Mui <cherryyz@google.com>
75 lines
2.4 KiB
Go
75 lines
2.4 KiB
Go
// Copyright 2018 The Go Authors. All rights reserved.
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// Use of this source code is governed by a BSD-style
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// license that can be found in the LICENSE file.
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//go:build aix || solaris
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package unix
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import "unsafe"
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// ioctl itself should not be exposed directly, but additional get/set
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// functions for specific types are permissible.
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// IoctlSetInt performs an ioctl operation which sets an integer value
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// on fd, using the specified request number.
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func IoctlSetInt(fd int, req int, value int) error {
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return ioctl(fd, req, uintptr(value))
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}
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// IoctlSetPointerInt performs an ioctl operation which sets an
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// integer value on fd, using the specified request number. The ioctl
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// argument is called with a pointer to the integer value, rather than
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// passing the integer value directly.
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func IoctlSetPointerInt(fd int, req int, value int) error {
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v := int32(value)
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return ioctlPtr(fd, req, unsafe.Pointer(&v))
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}
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// IoctlSetString performs an ioctl operation which sets a string value
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// on fd, using the specified request number.
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func IoctlSetString(fd int, req int, value string) error {
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bs := append([]byte(value), 0)
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return ioctlPtr(fd, req, unsafe.Pointer(&bs[0]))
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}
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// IoctlSetWinsize performs an ioctl on fd with a *Winsize argument.
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//
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// To change fd's window size, the req argument should be TIOCSWINSZ.
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func IoctlSetWinsize(fd int, req int, value *Winsize) error {
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// TODO: if we get the chance, remove the req parameter and
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// hardcode TIOCSWINSZ.
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return ioctlPtr(fd, req, unsafe.Pointer(value))
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}
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// IoctlSetTermios performs an ioctl on fd with a *Termios.
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//
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// The req value will usually be TCSETA or TIOCSETA.
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func IoctlSetTermios(fd int, req int, value *Termios) error {
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// TODO: if we get the chance, remove the req parameter.
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return ioctlPtr(fd, req, unsafe.Pointer(value))
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}
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// IoctlGetInt performs an ioctl operation which gets an integer value
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// from fd, using the specified request number.
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//
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// A few ioctl requests use the return value as an output parameter;
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// for those, IoctlRetInt should be used instead of this function.
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func IoctlGetInt(fd int, req int) (int, error) {
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var value int
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err := ioctlPtr(fd, req, unsafe.Pointer(&value))
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return value, err
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}
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func IoctlGetWinsize(fd int, req int) (*Winsize, error) {
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var value Winsize
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err := ioctlPtr(fd, req, unsafe.Pointer(&value))
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return &value, err
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}
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func IoctlGetTermios(fd int, req int) (*Termios, error) {
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var value Termios
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err := ioctlPtr(fd, req, unsafe.Pointer(&value))
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return &value, err
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}
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