Adding license info to my ports

[Daniel J. Luke]

I've been attempting to start adding license info to the ports that I maintain, but I have a few questions.

Presumably, one driver for this is so that we can start building/distributing archives while being license compliant.

Do we have a list of the currently whitelisted licenses? (a pointer to the buildbot code I should be looking at is fine).
Do we have a policy on what to do for licenses that are 'almost' a standard license? (ie, GPL + OpenSSL exception). 
Do we have a way to mark 'odd' licenses as OK for building without having to add them to a master whitelist (ie, the sendmail license which covers libmilter?)

Thanks.
--
Daniel J. Luke                                                                   
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