# https://www.openssl.org/source/license.html
-$flavour = shift;
-$output = shift;
-open STDOUT,">$output";
+# $output is the last argument if it looks like a file (it has an extension)
+# $flavour is the first argument if it doesn't look like a file
+$output = $#ARGV >= 0 && $ARGV[$#ARGV] =~ m|\.\w+$| ? pop : undef;
+$flavour = $#ARGV >= 0 && $ARGV[0] !~ m|\.| ? shift : undef;
+
+$output and open STDOUT,">$output";
if ($flavour =~ /64/) {
$LEVEL ="2.0W";
print $_,"\n";
}
-close STDOUT;
+close STDOUT or die "error closing STDOUT: $!";