X-Git-Url: https://git.p6c8.net/selfforum.git/blobdiff_plain/9b9648223ab2db3960298d04b83ecdd147ec21e9..c80b6ed9be80ba3a63256be3a0ae79664bbe6b59:/selfforum-cgi/shared/Id.pm?ds=sidebyside

diff --git a/selfforum-cgi/shared/Id.pm b/selfforum-cgi/shared/Id.pm
index 480a57e..8e91379 100644
--- a/selfforum-cgi/shared/Id.pm
+++ b/selfforum-cgi/shared/Id.pm
@@ -14,8 +14,15 @@ use strict;
 use vars qw(
   @table
   @EXPORT
+  $VERSION
 );
 
+################################################################################
+#
+# Version check
+#
+$VERSION = do { my @r =(q$Revision$ =~ /\d+/g); sprintf "%d."."%02d" x $#r, @r };
+
 ################################################################################
 #
 # Export
@@ -59,6 +66,8 @@ sub unique_id () {
 #
 sub to_base64 ($) {
   my $x = shift;
+  return '' unless defined $x;
+
   my $y = $table[$x % 64];
 
   $y = $table[$x % 64].$y while ($x = int ($x/64));
@@ -79,7 +88,7 @@ BEGIN {
   );
 }
 
-# keep require happy
+# keep 'require' happy
 1;
 
 #