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<h1 align=center>MAKE_SHA1</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#OPTIONS">OPTIONS</a><br>
<a href="#FILES">FILES</a><br>
<a href="#AUTHORS">AUTHORS</a><br>
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<a name="NAME"></a>
<h2>NAME</h2>
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<p>make_sha1 − Generate SHA1 checksums for given set
of users.</p>
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<a name="SYNOPSIS"></a>
<h2>SYNOPSIS</h2>
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<p><b>make_sha1</b> [ <b>−C</b> <i>config-file</i> ] [
<b>−D</b> <i>md5_dir</i> ] [ <b>−k</b>
<i>count</i> ] [ <b>−f</b> <i>input_file</i> ] [
<b>−m</b> <i>offset</i> ] [ <b>−M</b>
<i>modulo</i> ] [ <b>−v</b> ] [ <i>userid</i>... ]</p>
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<h2>DESCRIPTION</h2>
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<p>Generate SHA1 checksums for messages given set of users.
Works as incremental update: reads in existing set of SHA1
checksums from <i>sha1_dir/u/userid</i> (hashed on first
letter of userid) if that file exists. Scans account looking
for new messages, and then updates record.</p>
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<p>The SHA1 checksums which are generated are used to test
integrity of the master, replica and backup systems on
Hermes.</p>
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<a name="OPTIONS"></a>
<h2>OPTIONS</h2>
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<p><b>−C</b> <i>config-file</i></p></td>
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<p>Read configuration options from <i>config-file</i>.</p>
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<p><b>−D</b> <i>sha1_dir</i></p></td>
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<p>Read and write SHA1 checksums from <i>sha1_dir</i>,
overrides configuration file setting of the same name.</p>
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<p><b>−k</b> <i>count</i></p></td>
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<p>Concurrency level: run up to <i>count</i> asynchronous
child processes.</p>
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<p><b>−f</b> <i>input_file</i></p></td>
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<p>List of accounts to process: use in place of command line
arguments.</p>
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<p><b>−m</b> <i>offset</i></p></td>
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<p>Regenerate given fraction of the user database in
combination with −M below.</p>
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<p><b>−M</b> <i>modulo</i></p></td>
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<p>Regenerate SHA1 checksums for given fraction of user
database. Allows for rolling consisency checks.</p>
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<p><b>−v</b></p>
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<p>Verbose mode.</p>
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<a name="FILES"></a>
<h2>FILES</h2>
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<p><b>/etc/imapd.conf</b></p></td>
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<a name="AUTHORS"></a>
<h2>AUTHORS</h2>
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<p>David Carter (dpc22@cam.ac.uk)</p>
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