What are you using to do the HTTPS transfer?
I'm using LWP (libwww-perl) with Crypt::SSLeasy (lib-crypt-ssleay-perl on Debian), and if I say:
HEAD -x https://db.debian.org/
I get some headers back in the response, e.g.:
Client-SSL-Warning: Peer certificate not verified
I strongly recommend reading the Crypt::SSLeay documentation.
So, to use this in a more substantive example:
our $hostname = shift or die "Syntax: $0 hostname\n";
our $ua = LWP::UserAgent->new;
our $req = HTTP::Request->new(HEAD => "https://$hostname");
our $resp = $ua->request($req);
print " Site: ", $resp->header('Client-SSL-Cert-Subject'), "
print "Cert. Authority: ", $resp->header('Client-SSL-Cert-Issuer'), "\
print " Cipher: ", $resp->header('Client-SSL-Cipher'), "\n";
and then you should be able to run this script with the hostname of an SSL site as a parmaeter, e.g. "www.verisign.com".
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