bug#28458: 26.0.50; Does Emacs support SAN (subject alternate names)?

[Lars Ingebrigtsen]

I've been seeing some warnings about invalid TLS certificates lately
that seem kinda unlikely.  I mean, it's from major sites that shouldn't
have broken TLS certificates.  And the error is always that the host
name doesn't match the name of the certificate.

Which made me wonder: Does gnutls.c support SAN (subject alternate
names), which is a way to list oodles of host names in a single
certificate?  I can't find any mention of this in the code...

I'll try to get a test case going, but this bug report is mainly to
remind myself not to forget this again, which I've done the previous
dozen times this has happened.


In GNU Emacs 26.0.50 (build 7, x86_64-pc-linux-gnu, GTK+ Version 3.22.11)
 of 2017-09-13 built on mouse
Repository revision: bdb71dea4a478115bde5c8260f228613d6717157
Windowing system distributor 'The X.Org Foundation', version 11.0.11903000
System Description:     Ubuntu 17.04


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(domestic pets only, the antidote for overdose, milk.)
   bloggy blog: http://lars.ingebrigtsen.no