Update: another indication that this code has never really been in use is that if the idea is to modify the argument list prior to calling the wrapped do_httpx4, it would have to be called as &do_httpx4 to actually make @_ visible to that subroutine...

Yes, I noticed that initially, then somehow it slipped my mind before I posted.

I'm getting more and more convinced that much of Net::SSLeay is the software equivalent of introns.

Here's another

sub do_httpx4 {
    my ($page, $response, $headers, $server_cert) = &do_httpx3;
    X509_free($server_cert) if defined $server_cert;
    my %hr = ();
    for my $hh (split /\s?\n/, $headers) {
    my ($h,$v)=/^(\S+)\:\s*(.*)$/;
    push @{$hr{uc($h)}}, $v;
    }
    return ($page, $response, \%hr);
}
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If you notice the variable $hh is not used and the m// operator is acting on whatever happens to be in $_.

Am I really looking at the current version of the module (version 1.32 on CPAN)?