 password to encrypted form before it is sent.  The
      arguments are the cleartext password, and the SQL name of the user
      it is for.  The return value is a string allocated by
      <CODE
CLASS="FUNCTION"
>malloc</CODE
>, or <TT
CLASS="SYMBOL"
>NULL</TT
> if out of
      memory.  The caller can assume the string doesn't contain any
      special characters that would require escaping.  Use
      <CODE
CLASS="FUNCTION"
>PQfreemem</CODE
> to free the result when done with it.
     </P
></DD
><DT
><A
