#!/usr/bin/perl -w
use strict;
use warnings;
use CGI::Carp qw{ fatalsToBrowser };
use IO::File;
my $png = "test.png";
my $fh = new IO::File($png) or die "Can't read file '$png' ($!)\n"
+;
my $nbytes = (-s $png);
binmode $fh;
my $data;
sysread($fh, $data, $nbytes) or die "Failed to read data from '$png' (
+$!)\n";
print "Content-disposition: attachment; filename=$png\n\n";
print $data;
Update: Removed '...' from .png filename in header.
s''(q.S:$/9=(T1';s;(..)(..);$..=substr+crypt($1,$2),2,3;eg;print$..$/
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