use warnings;
use strict;
use LWP;
use HTTP::Message;
# For TLS connection
use LWP::Protocol::https;
use Crypt::SSLeay;

# TLS stuff
$ENV{HTTPS_DEBUG}   = 1;
$ENV{HTTPS_VERSION} = 3;
$ENV{'HTTPS_CERT_FILE'} = '/opt/CT/certs/EHR_ICA.ihe.net.pem';
$ENV{'HTTPS_KEY_FILE'}  = '/opt/CT/requests/EHR_ICA.ihe.net.pem';

my $req = HTTP::Request->new(POST => $self->{'endpoint'});
# ...

##</code><code>##

$ perl -w xds_qry.pl
Enter PEM pass phrase:
SSL_connect:before/connect initialization
SSL_connect:SSLv3 write client hello A
SSL_connect:failed in SSLv3 read server hello A
Enter PEM pass phrase:
SSL_connect:before/connect initialization
SSL_connect:SSLv2 write client hello A
SSL_connect:failed in SSLv2 read server hello A

syntax error at line 1, column 0, byte 0:
500 SSL negotiation failed:
^
 at /usr/lib64/perl5/site_perl/5.8.8/x86_64-linux-thread-multi/XML/Parser.pm line 187