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unix: unify Ioctl* functions

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Unify Ioctl* functions common across the different UNIX OSs.

Change-Id: I2376d97a7162e7e6518f75faf9317ffc87962411
Reviewed-on: https://go-review.googlesource.com/c/sys/+/192358
Run-TryBot: Tobias Klauser <tobias.klauser@gmail.com>
TryBot-Result: Gobot Gobot <gobot@golang.org>
Reviewed-by: Tobias Klauser <tobias.klauser@gmail.com>
This commit is contained in:
Kir Kolyshkin
2019-08-30 00:33:25 -07:00
committed by Tobias Klauser
parent 19e00faab6
commit 08d80c9d36
9 changed files with 35 additions and 289 deletions
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38
unix/ioctl.go
View File

@@ -6,7 +6,19 @@
package unix
import "runtime"
import (
"runtime"
"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 uint, value int) error {
return ioctl(fd, req, uintptr(value))
}
// IoctlSetWinsize performs an ioctl on fd with a *Winsize argument.
//
@@ -14,7 +26,7 @@ import "runtime"
func IoctlSetWinsize(fd int, req uint, value *Winsize) error {
// TODO: if we get the chance, remove the req parameter and
// hardcode TIOCSWINSZ.
err := ioctlSetWinsize(fd, req, value)
err := ioctl(fd, req, uintptr(unsafe.Pointer(value)))
runtime.KeepAlive(value)
return err
}
@@ -24,7 +36,27 @@ func IoctlSetWinsize(fd int, req uint, value *Winsize) error {
// The req value will usually be TCSETA or TIOCSETA.
func IoctlSetTermios(fd int, req uint, value *Termios) error {
// TODO: if we get the chance, remove the req parameter.
err := ioctlSetTermios(fd, req, value)
err := ioctl(fd, req, uintptr(unsafe.Pointer(value)))
runtime.KeepAlive(value)
return err
}
// IoctlGetInt performs an ioctl operation which gets an integer value
// from fd, using the specified request number.
func IoctlGetInt(fd int, req uint) (int, error) {
var value int
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return value, err
}
func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
var value Winsize
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}
func IoctlGetTermios(fd int, req uint) (*Termios, error) {
var value Termios
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}

37
unix/syscall_aix.go
View File

@@ -356,43 +356,6 @@ func (w WaitStatus) TrapCause() int { return -1 }
//sys ioctl(fd int, req uint, arg uintptr) (err error)
// 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 uint, value int) error {
return ioctl(fd, req, uintptr(value))
}
func ioctlSetWinsize(fd int, req uint, value *Winsize) error {
return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
}
func ioctlSetTermios(fd int, req uint, value *Termios) error {
return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
}
// IoctlGetInt performs an ioctl operation which gets an integer value
// from fd, using the specified request number.
func IoctlGetInt(fd int, req uint) (int, error) {
var value int
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return value, err
}
func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
var value Winsize
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}
func IoctlGetTermios(fd int, req uint) (*Termios, error) {
var value Termios
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}
// fcntl must never be called with cmd=F_DUP2FD because it doesn't work on AIX
// There is no way to create a custom fcntl and to keep //sys fcntl easily,
// Therefore, the programmer must call dup2 instead of fcntl in this case.

37
unix/syscall_darwin.go
View File

@@ -339,43 +339,6 @@ func Kill(pid int, signum syscall.Signal) (err error) { return kill(pid, int(sig
//sys ioctl(fd int, req uint, arg uintptr) (err error)
// 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 uint, value int) error {
return ioctl(fd, req, uintptr(value))
}
func ioctlSetWinsize(fd int, req uint, value *Winsize) error {
return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
}
func ioctlSetTermios(fd int, req uint, value *Termios) error {
return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
}
// IoctlGetInt performs an ioctl operation which gets an integer value
// from fd, using the specified request number.
func IoctlGetInt(fd int, req uint) (int, error) {
var value int
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return value, err
}
func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
var value Winsize
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}
func IoctlGetTermios(fd int, req uint) (*Termios, error) {
var value Termios
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}
func Uname(uname *Utsname) error {
mib := []_C_int{CTL_KERN, KERN_OSTYPE}
n := unsafe.Sizeof(uname.Sysname)

37
unix/syscall_dragonfly.go
View File

@@ -150,43 +150,6 @@ func setattrlistTimes(path string, times []Timespec, flags int) error {
//sys ioctl(fd int, req uint, arg uintptr) (err error)
// 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 uint, value int) error {
return ioctl(fd, req, uintptr(value))
}
func ioctlSetWinsize(fd int, req uint, value *Winsize) error {
return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
}
func ioctlSetTermios(fd int, req uint, value *Termios) error {
return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
}
// IoctlGetInt performs an ioctl operation which gets an integer value
// from fd, using the specified request number.
func IoctlGetInt(fd int, req uint) (int, error) {
var value int
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return value, err
}
func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
var value Winsize
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}
func IoctlGetTermios(fd int, req uint) (*Termios, error) {
var value Termios
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}
func sysctlUname(mib []_C_int, old *byte, oldlen *uintptr) error {
err := sysctl(mib, old, oldlen, nil, 0)
if err != nil {

37
unix/syscall_freebsd.go
View File

@@ -201,43 +201,6 @@ func setattrlistTimes(path string, times []Timespec, flags int) error {
//sys ioctl(fd int, req uint, arg uintptr) (err error)
// 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 uint, value int) error {
return ioctl(fd, req, uintptr(value))
}
func ioctlSetWinsize(fd int, req uint, value *Winsize) error {
return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
}
func ioctlSetTermios(fd int, req uint, value *Termios) error {
return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
}
// IoctlGetInt performs an ioctl operation which gets an integer value
// from fd, using the specified request number.
func IoctlGetInt(fd int, req uint) (int, error) {
var value int
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return value, err
}
func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
var value Winsize
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}
func IoctlGetTermios(fd int, req uint) (*Termios, error) {
var value Termios
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}
func Uname(uname *Utsname) error {
mib := []_C_int{CTL_KERN, KERN_OSTYPE}
n := unsafe.Sizeof(uname.Sysname)

34
unix/syscall_linux.go
View File

@@ -80,52 +80,18 @@ func IoctlSetPointerInt(fd int, req uint, value int) error {
return ioctl(fd, req, uintptr(unsafe.Pointer(&v)))
}
// IoctlSetInt performs an ioctl operation which sets an integer value
// on fd, using the specified request number.
func IoctlSetInt(fd int, req uint, value int) error {
return ioctl(fd, req, uintptr(value))
}
func ioctlSetWinsize(fd int, req uint, value *Winsize) error {
return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
}
func ioctlSetTermios(fd int, req uint, value *Termios) error {
return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
}
func IoctlSetRTCTime(fd int, value *RTCTime) error {
err := ioctl(fd, RTC_SET_TIME, uintptr(unsafe.Pointer(value)))
runtime.KeepAlive(value)
return err
}
// IoctlGetInt performs an ioctl operation which gets an integer value
// from fd, using the specified request number.
func IoctlGetInt(fd int, req uint) (int, error) {
var value int
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return value, err
}
func IoctlGetUint32(fd int, req uint) (uint32, error) {
var value uint32
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return value, err
}
func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
var value Winsize
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}
func IoctlGetTermios(fd int, req uint) (*Termios, error) {
var value Termios
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}
func IoctlGetRTCTime(fd int) (*RTCTime, error) {
var value RTCTime
err := ioctl(fd, RTC_RD_TIME, uintptr(unsafe.Pointer(&value)))

37
unix/syscall_netbsd.go
View File

@@ -187,43 +187,6 @@ func setattrlistTimes(path string, times []Timespec, flags int) error {
//sys ioctl(fd int, req uint, arg uintptr) (err error)
// 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 uint, value int) error {
return ioctl(fd, req, uintptr(value))
}
func ioctlSetWinsize(fd int, req uint, value *Winsize) error {
return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
}
func ioctlSetTermios(fd int, req uint, value *Termios) error {
return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
}
// IoctlGetInt performs an ioctl operation which gets an integer value
// from fd, using the specified request number.
func IoctlGetInt(fd int, req uint) (int, error) {
var value int
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return value, err
}
func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
var value Winsize
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}
func IoctlGetTermios(fd int, req uint) (*Termios, error) {
var value Termios
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}
func IoctlGetPtmget(fd int, req uint) (*Ptmget, error) {
var value Ptmget
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))

37
unix/syscall_openbsd.go
View File

@@ -178,43 +178,6 @@ func setattrlistTimes(path string, times []Timespec, flags int) error {
//sys ioctl(fd int, req uint, arg uintptr) (err error)
// 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 uint, value int) error {
return ioctl(fd, req, uintptr(value))
}
func ioctlSetWinsize(fd int, req uint, value *Winsize) error {
return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
}
func ioctlSetTermios(fd int, req uint, value *Termios) error {
return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
}
// IoctlGetInt performs an ioctl operation which gets an integer value
// from fd, using the specified request number.
func IoctlGetInt(fd int, req uint) (int, error) {
var value int
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return value, err
}
func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
var value Winsize
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}
func IoctlGetTermios(fd int, req uint) (*Termios, error) {
var value Termios
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}
//sys ppoll(fds *PollFd, nfds int, timeout *Timespec, sigmask *Sigset_t) (n int, err error)
func Ppoll(fds []PollFd, timeout *Timespec, sigmask *Sigset_t) (n int, err error) {

30
unix/syscall_solaris.go
View File

@@ -553,40 +553,10 @@ func Minor(dev uint64) uint32 {
//sys ioctl(fd int, req uint, arg uintptr) (err error)
func IoctlSetInt(fd int, req uint, value int) (err error) {
return ioctl(fd, req, uintptr(value))
}
func ioctlSetWinsize(fd int, req uint, value *Winsize) (err error) {
return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
}
func ioctlSetTermios(fd int, req uint, value *Termios) (err error) {
return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
}
func IoctlSetTermio(fd int, req uint, value *Termio) (err error) {
return ioctl(fd, req, uintptr(unsafe.Pointer(value)))
}
func IoctlGetInt(fd int, req uint) (int, error) {
var value int
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return value, err
}
func IoctlGetWinsize(fd int, req uint) (*Winsize, error) {
var value Winsize
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}
func IoctlGetTermios(fd int, req uint) (*Termios, error) {
var value Termios
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))
return &value, err
}
func IoctlGetTermio(fd int, req uint) (*Termio, error) {
var value Termio
err := ioctl(fd, req, uintptr(unsafe.Pointer(&value)))