detecting ssl

[brian moseley]

warning: these may be silly questions. but i've looked
through the guide and not found the answers, so hopefully
they're not that silly.

how can i test in a content handler if the request was
received over an ssl connection? do i have to look for an
environment variable? is there a test that works with all
the various ssl modules? is there a standard "ssl
interface"? if so, where is it documented?

thanks!