uvmac/docs/extras/dc42chk/index.html
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<title> DC42Chk </title>
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<i> <a href="https://www.gryphel.com/index.html">www.gryphel.com</a>/c/<a href="../../index.html">minivmac</a>/<a href="../index.html">extras</a>/dc42chk
- <a href="https://www.gryphel.com/c/feedback.html">feedback</a> </i>
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<h2 align=center>
DC42Chk
</h2>
<hr>
<p> Download </p>
<blockquote>
<p> <a href="https://www.gryphel.com/d/minivmac/extras/dc42chk/dc42chk-1.0.0.zip">dc42chk-1.0.0.zip</a>
(66K) a zipped hfs disk image and checksum file.
The disk image can be mounted with Mini vMac.
Includes source code. </p>
</blockquote>
<p> DC42Chk is an application to use in Mini vMac
(version 3.0.0 or later) to check that disk image files
in the format used by Disk Copy 4.2 have correct
checksums. </p>
<p> Mini vMac versions before 3.2.2 by default will mount
and write to Disk Copy 4.2 images without updating the
checksums, resulting in an invalid image.
Mini vMac 3.2.2 and later by default will mount such
images read only, but can be compiled to be able
to write to such images, in which case the checksums
will be updated when the image is unmounted.
It does not verify the checksums before mounting.
Hence this utility. </p>
<p> DC42Chk works similar to
<a href="../importfl/index.html">ImportFl</a>.
The image to check is on the host computer, not
the emulated one.
Upon scanning a valid image, DC42Chk will display
the message :
"Good - I think that is a valid Disk Copy 4.2 disk image."
Otherwise some other message will be displayed indicating
the problem. </p>
<p>
Here is the md5 checksum for the download, signed with
<a href="https://www.gryphel.com/c/keys/k5.html">Gryphel Key 5</a>:
</p>
<blockquote>
<pre>
--------- GRY SIGNED TEXT ---------
f8d7617bb52894c834768d5f53e3fb62 dc42chk-1.0.0.zip
------- BEGIN GRY SIGNATURE -------
Gry/4Xa8CFcUzxdN/A+bwP10hKMZYHEimltz1knBtJ9h56jezDcmeqETrzYmgec2
0XWeeWVA0uV/s2E+BUbfWVfNwHVqaC0NOQo5ttvqZQg6qRq8PNi/WUmgm8xFiF7H
7QP14nVdgJYGyDHoxhTBygjVV77iwYOsYMQzsZBy9KyFpN9bwYf0oCdhaUhtlRH4
-------- END GRY SIGNATURE --------
</pre>
</blockquote>
<p> See the
<a href="../../appc/index.html">Compiling</a>
page for instructions on compiling DC42Chk from the source code. </p>
<p> You can redistribute DC42Chk and/or modify it under the terms
of version 2 of the GNU General Public License as published by
the Free Software Foundation. See the included file COPYING. </p>
<p> DC42Chk is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
license for more details. </p>
<p> : </p>
<p> If you find DC42Chk useful, please consider
<a href="https://www.gryphel.com/c/help/index.html">helping the Gryphel Project</a>,
of which it is a part. </p>
<a href="https://www.gryphel.com/index.html">
<img src="https://www.gryphel.com/d/gryphel-32.gif" width=32 height=32 border=0
alt="gryphel logo, 1K"
>
</a>
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<i> <a href="https://www.gryphel.com/index.html">www.gryphel.com</a>/c/<a href="../../index.html">minivmac</a>/<a href="../index.html">extras</a>/dc42chk
- <a href="https://www.gryphel.com/c/feedback.html">feedback</a> </i>
<br>
copyright (c) 2011 Paul C. Pratt - last update 4/22/2011
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