dumping access point certificate from wpa_supplicant

[Sam Mason]

Hi,
I've just been forced to use 802.1X on a wired lan (PEAP with MS-CHAP
v2) but the network operator isn't providing a certificate for their
server.  I was hoping that validating the certificate might help
prevent PITM attacks, but I'm not even sure if that makes sense for
this protocol.
Google pointed me to https://superuser.com/a/853602/171763 as a way to
dump the certificate, and I've searched back through the archives here
but couldn't find anything more recent.
Thanks!

  Sam