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Re: [hylafax-users] Unable to view received faxes (Windows Client)



On 2004.07.19 14:34 Bill Binko wrote:
On Mon, 19 Jul 2004, Lee Howard wrote:

> The problem is, though, how do we accurately check for an unpatched
> libtiff 3.6.1 without generating just as many problems?

Well, one approach that's worked in the past is to include in the
autoconf
script a test that actually checks the buggy library.  In other words,
include a small C program that triggers the bug, compile, link and run
it
and check the output.  In this case, I think this would involve
setting up
the appropriate structures and seeing if the dsp gets set correctly
(correct?).

I'm not sure what you mean by "the dsp" getting set correctly.


It could be tested by making a test C program that linked the libtiff libraries and generated a TIFF file from some static raster data. Then the test program would need to re-read the TIFF file and then decode it to raster and compare that against the original to make sure the data that was not corrupted in the process. If it was corrupted, then the libtiff bug is present.

Feel free to code this up yourself and hang a patch on Bugzilla ;-)

This is a pain, and I don't recommend it for every external bug.  But
this
one's causing lots of pain (particularly w/Debian users), and it
doesn't
look like a solutions around the corner.

Hopefully Debian users realize that they're using a very slow-moving distribution, especially when it comes to non-security-related issues. Believe me, I'm a big Degian fan, but it's just something that Debian users need to realize: the distribution base moves slower than molasses, and rebuilding your own DEB packages from DEB sources plus a patch is not a particularly simple procedure.


Lee.

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