Supporting Times
SSH Scanning Jerks
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Working with Time
LoGS needs to be able to talk about times easily, at times.
LoGS, of course, already has facilities for doing things at certain times. The problem is that these times have to be specified in *LoGS-INTERNAL-TIME-UNITS-PER-SECOND* since the start of the Lisp process; isn't that convienant?!
What we would like to be able to say is something like: "write me a report on all the invalid ssh connections AT MIDNIGHT" or "... AT 12:01 PM"
While CMUCL has facilities for parsing dates that seem rather robust, these facilities are not portable. I found that Gene Michael Stover has created a library (I'm not quite sure of its name exactly!) that can be found here: http://cybertiggyr.com/gene/pdl/
I've started to do a little work to make this library support the date formats that I would like to see (such as a simple "12:34:56" to mean 12:34:56 AM today and "12:34:56 tomorrow" to mean, obviously, 12:34:56 AM tomorrow). These are the sorts of times I want to be able to use in my LoGS rulesets.
I've submitted a patch to Mr. Stover to support a couple of these formats. I hope that he will accept them so that I don't have to maintain a bunch of time parsing stuff inside of LoGS.