// license that can be found in the LICENSE file.

package testpty

import (
	"internal/syscall/unix"
	"os"
	"syscall"
)

func open() (pty *os.File, processTTY string, err error) {
	m, err := unix.PosixOpenpt(syscall.O_RDWR)
	if err != nil {
		return nil, "", ptyError("posix_openpt", err)
	}
	if err := unix.Grantpt(m); err != nil {
		syscall.Close(m)
		return nil, "", ptyError("grantpt", err)
	}

			buf = buf[:i]
			break
		}
	}
	return string(buf), nil
}

//go:cgo_import_dynamic libc_posix_openpt posix_openpt "/usr/lib/libSystem.B.dylib"
func libc_posix_openpt_trampoline()

func PosixOpenpt(flag int) (fd int, err error) {
	ufd, _, errno := syscall_syscall6(abi.FuncPCABI0(libc_posix_openpt_trampoline), uintptr(flag), 0, 0, 0, 0, 0)
	if errno != 0 {
		return -1, errno
	}
	return int(ufd), nil