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unix: make IoctlSetPointerInt available on all platforms

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This may be used with unix.TIOCSPGRP which is available on platforms
other than linux.

Fixes golang/go#40986

Change-Id: Ic96b119e68395e5b6c5f33504ad40f3dfd4804f7
Reviewed-on: https://go-review.googlesource.com/c/sys/+/250001
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Matt Layher <mdlayher@gmail.com>
This commit is contained in:
Tobias Klauser
2020-08-24 11:42:11 +02:00
committed by Tobias Klauser
parent fda516888d
commit 2bddbd2f0c
2 changed files with 9 additions and 9 deletions
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9
unix/ioctl.go
View File

@@ -20,6 +20,15 @@ func IoctlSetInt(fd int, req uint, 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 uint, value int) error {
v := int32(value)
return ioctl(fd, req, uintptr(unsafe.Pointer(&v)))
}
// IoctlSetWinsize performs an ioctl on fd with a *Winsize argument.
//
// To change fd's window size, the req argument should be TIOCSWINSZ.

9
unix/syscall_linux.go
View File

@@ -82,15 +82,6 @@ func IoctlRetInt(fd int, req uint) (int, error) {
return int(ret), nil
}
// 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 uint, value int) error {
v := int32(value)
return ioctl(fd, req, uintptr(unsafe.Pointer(&v)))
}
func IoctlSetRTCTime(fd int, value *RTCTime) error {
err := ioctl(fd, RTC_SET_TIME, uintptr(unsafe.Pointer(value)))
runtime.KeepAlive(value)