[rancid] Updated module for APC network management cards

[Kevin Bonner]

Hi Terry,

I've been using the rancid-apc tarball from rancid FTP contrib to monitor over 
90 APC devices successfully for about a month and just wanted to give a 
success report for this module.  The only thing I needed to change was to use 
passive ftp, but that was easy to get around.  If you'd like the diff, just to 
throw into apcrancid and disabled in the command table by default, just let me 
know.

-Kevin

>   7+ years ago, I released a first cut of a RANCID module for pulling
> configs from APC network management cards. As part of migrating my
> monitoring systems from RANCID 2.3.1 (heavily modified) to 2.3.8, I've
> 
> completely re-done the APC modules. Some of the changes are:
>   o Based on 2.3.8 clogin / rancid code base - easier to see what I
>     changed if you want to audit the code
>   
>   o Now reports the exact APC model number in the "Chassis Type" com-
>     ment line
>   
>   o Supports 2nd-generation APC management cards such as the AP9630/
>     AP9631
>   
>   o Supports a wider variety of FTP clients (different prompts)
>   o Better handling of configuration errors (such as specifying a non-
>     standard port number)
>   
>   o Better handling of errors from the FTP client - errors are now de-
>   
>     tected and reported rather than relying on the timeout mechanism
>   
>   o RANCID-CONTENT-TYPE header changed to "apc" from "apc-netmgmt"
>   o Greatly expanded the amount of info in the 0-README file
> 
>   You can download this version from:
> http://www.tmk.com/transient/rancid-apc.tar.gz
> 
>   If you want the 2005 version for some reason, it is available as:
> http://www.tmk.com/transient/rancid-apc-old.tar.gz
> 
>         Terry Kennedy             http://www.tmk.com
>         terry at tmk.com             New York, NY USA