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<TITLE>sane-devel: Re: EOF detection</TITLE>
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<META NAME="Author" CONTENT="Nick Lamb (njl98r@ecs.soton.ac.uk)">
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<META NAME="Subject" CONTENT="Re: EOF detection">
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<H1>Re: EOF detection</H1>
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<STRONG>From:</STRONG> Nick Lamb (<A HREF="mailto:njl98r@ecs.soton.ac.uk?Subject=Re:%20EOF%20detection&In-Reply-To=<20010508183110.B25971@ecs.soton.ac.uk>"><EM>njl98r@ecs.soton.ac.uk</EM></A>)<BR>
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<STRONG>Date:</STRONG> Tue May 08 2001 - 10:31:10 PDT
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<LI><STRONG>Next message:</STRONG> <A HREF="0096.html">Henning Meier-Geinitz: "Re: EOF detection"</A>
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<LI><STRONG>Previous message:</STRONG> <A HREF="0094.html">Marian Eichholz: "Re: EOF detection"</A>
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<LI><STRONG>In reply to:</STRONG> <A HREF="0094.html">Marian Eichholz: "Re: EOF detection"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0107.html">Marian Eichholz: "Re: EOF detection"</A>
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<LI><STRONG>Next in thread:</STRONG> <A HREF="0096.html">Henning Meier-Geinitz: "Re: EOF detection"</A>
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<LI><STRONG>Reply:</STRONG> <A HREF="0107.html">Marian Eichholz: "Re: EOF detection"</A>
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<P>
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On Tue, May 08, 2001 at 06:44:26PM +0200, Marian Eichholz wrote:
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<BR>
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<EM>> I did't look into the new scanning code, but 0.74 had in fact a
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</EM><BR>
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<EM>> vulnerability (buffer overrun), if the backend offers actually more data
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</EM><BR>
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<EM>> than was precalculated by the front end.
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</EM><BR>
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<EM>>
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</EM><BR>
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<EM>> This is/was really a bug in the front end Xsane, because the parameters
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</EM><BR>
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<EM>> to sane_read (aount of data requestet) don't mention the coming end of
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</EM><BR>
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<EM>> the buffer (always requesting 64K/8K).
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</EM><BR>
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<P>I'm having trouble understanding this, can you give a concrete example,
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<BR>
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showing the SANE API calls made by Xsane, the response from the backend
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<BR>
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and where this leads to an overrun?
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<BR>
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<P>Nick.
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<BR>
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<P><PRE>
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--
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Source code, list archive, and docs: <A HREF="http://www.mostang.com/sane/">http://www.mostang.com/sane/</A>
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</PRE>
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<LI><STRONG>Next message:</STRONG> <A HREF="0096.html">Henning Meier-Geinitz: "Re: EOF detection"</A>
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This archive was generated by <A HREF="http://www.hypermail.org/">hypermail 2b29</A>
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: <EM>Tue May 08 2001 - 10:20:41 PDT</EM>
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