 contents of the file named by <EM>pathname</EM>.  <EM>digest</EM> and <EM>digest-start</EM> are as in <A HREF="#produce-digest" STYLE="symbol">produce-digest</A>.</P><P>If <EM>buffer</EM> is provided, it must be a <TT>(SIMPLE-ARRAY
(UNSIGNED-BYTE 8) (*))</TT>; the portion of <EM>buffer</EM> between <EM>start</EM> and <EM>end</EM> will be used to read the data from the stream.</P><H3>Inquiry functions</H3><DIV CLASS="lisp-symbol"><A NAME="list-all-digests"></A><TT><STRONG>list-all-digests</STRONG>  =&gt; <E