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<th colspan="3" align="center">LPRng-HOWTO: 8 Feb 2002
(For LPRng-3.8.6)</th>
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<td width="80%" align="center" valign="bottom">Chapter
19. RFC 1179 - Line Printer Daemon Protocol</td>
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<h1 class="SECT1"><a name="SENDBLOCKFORMAT">19.9. Block Job
Transfer</a></h1>
<p>Options used:</p>
<ul>
<li>
<p><tt class="LITERAL">send_block_format</tt> FLAG <i
class="EMPHASIS">Transfer job as a block</i></p>
</li>
</ul>
<br>
<br>
<p>In normal job transfer operations, the sender and receiver
have a handshake interaction in order to transfer a print
job. Each file is sent individually. The <tt class=
"LITERAL">send_block_format</tt> option forces a Block Job
Transfer operation. This causes the sender to transfer a
single file containing all the job printing information,
including control file and data files.</p>
<p>The transfer command line has the form:</p>
<div class="INFORMALEXAMPLE">
<a name="AEN10432"></a>
<pre class="SCREEN">
\007printer size\n
</pre>
</div>
<br>
<br>
<p>The receiver will return any acknowledgement of a single 0
octet, and then the size bytes of the job will be transferred
by the sender. At the end of the transfer a single 0 octet is
added, and the receiver will indicate success by returning a
single 0 octet. Any other value returned by the receiver
indicates an error condition.</p>
<p>The file transferred by the sender is simply the command
lines that it would have normally sent for job transfer,
followed by the control or data file values.</p>
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