--- loncom/cgi/barcode.png	2001/12/11 20:01:05	1.6
+++ loncom/cgi/barcode.png	2002/12/13 21:33:30	1.10
@@ -1,9 +1,9 @@
 #!/usr/bin/perl
 
 # The LearningOnline Network with CAPA
-# barcode.gif - A CGI script that dynamically outputs a barcode.
+# barcode.png - A CGI script that dynamically outputs a barcode.
 #
-# $Id: barcode.png,v 1.6 2001/12/11 20:01:05 harris41 Exp $
+# $Id: barcode.png,v 1.10 2002/12/13 21:33:30 albertel Exp $
 #
 # Copyright Michigan State University Board of Trustees
 #
@@ -43,6 +43,7 @@
 use strict;
 use GD::Barcode::Code39;
 
+$|=1;   # Autoflush after each print/write
 foreach (split(/&/,$ENV{'QUERY_STRING'})) {
     my ($name, $value) = split(/=/,$_);
     $value =~ tr/+/ /;
@@ -52,17 +53,17 @@ foreach (split(/&/,$ENV{'QUERY_STRING'})
     }
 }
 
-# Tell the server we are sending a gif graphic
+# Tell the server we are sending a png graphic
 print <<END;
-Content-type: image/gif
+Content-type: image/png
 
 END
 
 unless(defined($ENV{'form.encode'}) and length($ENV{'form.encode'})) {
     $ENV{'form.encode'}='***ERROR***UNDEFINED***';
 }
-
-my $oGdBar=GD::Barcode::Code39->new($ENV{'form.encode'});
+my $text = '*'.uc($ENV{'form.encode'}).'*';
+my $oGdBar=GD::Barcode::Code39->new($text);
 if ($GD::Barcode::errStr or !defined($oGdBar)) {
     warn($GD::Barcode::errStr);
     $oGdBar=GD::Barcode::Code39->new('***ERROR***INVALID***');
@@ -70,7 +71,8 @@ if ($GD::Barcode::errStr or !defined($oG
 my $bindata=$oGdBar->plot->png; # create barcode image
 undef $oGdBar;
 binmode(STDOUT);
-open OUT,"|pngtopnm|ppmtogif 2>/dev/null"; # convert into gif image
-print OUT $bindata; # output image
-$|=1; # be sure to flush before closing
-close OUT;
+#open OUT,"|pngtopnm|ppmtogif 2>/dev/null"; # convert into gif image
+#print OUT $bindata; # output image
+#$|=1; # be sure to flush before closing
+#close OUT;
+print $bindata;