Help me audit a mail filter in C, please?

[bet () RAHUL NET (Bennett Todd)]

I've written the teensiest, tinyest little C program I could manage
to do email filtering. Tomorrow I'm gonna start into figuring out
how to integrate this gizmo into Postfix.

My plan is that this thing _just_ checks, for messages small enough
to fit into a reasonable in-memory buffer (1MB by default) whether
they contain a match for any of the regexps in a file. If a match is
found, or if the file is too large to buffer in memory all at once,
then it barfs it out into a directory for some other program to deal
with; I'll write a daemon for the few that this snaggles, probably
in perl. This way the vast majority of messages will be as fast as
possible.

I've already figured out that I'll need to do a
write-to-tmp-and-rename to clue in the daemon when the write is
really finished, and I'm sure I'll be needing to do something
appropriate with command-line args, or maybe envars, and popen a
/usr/lib/sendmail to send the thing on if it passes the tests. But
basically the hard part of the job should be done now.

I would really appreciate it if any of you can turn up any problems
with this. Or even if you can't. Appreciate as in add names to the
README and the AUTHOR section of the man page.

-Bennett

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<LI>application/x-gzip attachment: mailfilt-1.0.tar.gz
</UL>

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<LI>application/pgp-signature attachment: stored
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