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Use Ioctl{SetPointerInt,GetInt} from golang.org/x/sys/unix on linux #42

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Merged
estesp merged 1 commit into from
Sep 24, 2020
Merged

Use Ioctl{SetPointerInt,GetInt} from golang.org/x/sys/unix on linux #42

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11 changes: 3 additions & 8 deletions tc_linux.go
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Original file line number Diff line number Diff line change
Expand Up @@ -19,7 +19,6 @@ package console
import (
"fmt"
"os"
"unsafe"

"golang.org/x/sys/unix"
)
Expand All @@ -32,17 +31,13 @@ const (
// unlockpt unlocks the slave pseudoterminal device corresponding to the master pseudoterminal referred to by f.
// unlockpt should be called before opening the slave side of a pty.
func unlockpt(f *os.File) error {
var u int32
if _, _, err := unix.Syscall(unix.SYS_IOCTL, f.Fd(), unix.TIOCSPTLCK, uintptr(unsafe.Pointer(&u))); err != 0 {
return err
}
return nil
return unix.IoctlSetPointerInt(int(f.Fd()), unix.TIOCSPTLCK, 0)
}

// ptsname retrieves the name of the first available pts for the given master.
func ptsname(f *os.File) (string, error) {
var u uint32
if _, _, err := unix.Syscall(unix.SYS_IOCTL, f.Fd(), unix.TIOCGPTN, uintptr(unsafe.Pointer(&u))); err != 0 {
u, err := unix.IoctlGetInt(int(f.Fd()), unix.TIOCGPTN)
if err != nil {
return "", err
}
return fmt.Sprintf("/dev/pts/%d", u), nil
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