turn off epn

[Andreas Ericsson]

Marc Powell wrote:
> 
>> -----Original Message-----
>> From: nagios-users-bounces at lists.sourceforge.net [mailto:nagios-users-
>> bounces at lists.sourceforge.net] On Behalf Of zack kenton
>> Sent: Thursday, September 27, 2007 11:58 AM
>> To: nagios-users at lists.sourceforge.net
>> Subject: Re: [Nagios-users] turn off epn
>>
>> Hi Marc
>>
>> So I've tried everyones methods. Putting perl directly into the
> command
>> line of commands.cfg, setting up a macros user with /usr/bin/perl, the
>> environmental variables are fine...I just dont think there is a way
> around
>> embedded perl.
> 
> I'm quite certain that using the /usr/bin/perl method bypasses embedded
> perl. Search the archives, you'll find lots of evidence of that. 
> 

Or just chuck one look at the code that runs the check. It opens the file,
checks the first line for the handparsed equivalence of the regex
"# *!.*perl" before even considering the command cacheable. The perl
binary clearly doesn't match that, so it's never considered. Nagios doesn't
cache arguments to commands. That would be utterly daft.

It would actually make sense to never even open the file if it's bigger than
a certain size. Say, oh, 100KiB or something. Perl programs rarely (if ever)
grow that large (and if they do they almost certainly don't conform to the
rather strict EPN guidelines), and it would save a few cycles for checks that
bypass the embedded perl thing this way.

-- 
Andreas Ericsson                   andreas.ericsson at op5.se
OP5 AB                             www.op5.se
Tel: +46 8-230225                  Fax: +46 8-230231

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