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// +build !windows
package termios
import (
"fmt"
"os"
"golang.org/x/sys/unix"
)
func open_device(path string) (uintptr, error) {
fd, err := unix.Open(path, unix.O_NOCTTY|unix.O_RDWR|unix.O_CLOEXEC, 0666)
if err != nil {
return 0, fmt.Errorf("unable to open %q: %v", path, err)
}
return uintptr(fd), nil
}
// Pty returns a UNIX 98 pseudoterminal device.
// Pty returns a pair of fds representing the master and slave pair.
func Pty() (*os.File, *os.File, error) {
ptm, err := open_pty_master()
if err != nil {
return nil, nil, err
}
sname, err := Ptsname(ptm)
if err != nil {
return nil, nil, err
}
err = grantpt(ptm)
if err != nil {
return nil, nil, err
}
err = unlockpt(ptm)
if err != nil {
return nil, nil, err
}
pts, err := open_device(sname)
if err != nil {
return nil, nil, err
}
return os.NewFile(uintptr(ptm), "ptm"), os.NewFile(uintptr(pts), sname), nil
}
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