module Reline::Terminfo

def self.setupterm(term, fildes)
  errret_int = Fiddle::Pointer.malloc(Fiddle::SIZEOF_INT)
  ret = @setupterm.(term, fildes, errret_int)
  errret = errret_int[0, Fiddle::SIZEOF_INT].unpack1('i')
  case ret
  when 0 # OK
    0
  when -1 # ERR
    case errret
    when 1
      raise TerminfoError.new('The terminal is hardcopy, cannot be used for curses applications.')
    when 0
      raise TerminfoError.new('The terminal could not be found, or that it is a generic type, having too little information for curses applications to run.')
    when -1
      raise TerminfoError.new('The terminfo database could not be found.')
    else # unknown
      -1
    end
  else # unknown
    -2
  end
end