Function forkpty
pub unsafe extern "C" fn forkpty(amaster: *mut c_int, name: *mut c_char, termp: *const termios, winp: *const winsize) -> pid_tforkptypub unsafe extern "C" fn forkpty(amaster: *mut c_int, name: *mut c_char, termp: *const termios, winp: *const winsize) -> pid_t