Fixed an error that occured when adding privileges to non-existant or wildcarded tables.

ChangeLog

@@ -9,6 +9,8 @@ $Source$
     * Documentation.html, README:
       - The MySQL 4.1 support is not experimental anymore;
       - Updated credits.
+    * server_privileges.php: Fixed an error that occured when adding
+      privileges to non-existant or wildcarded tables.
 
 2004-04-20 Marc Delisle  <lem9@users.sourceforge.net>
     * libraries/tbl_change.js: was always returning current day

server_privileges.php

@@ -193,8 +193,9 @@ function PMA_displayPrivTable($db = '*', $table = '*', $submit = TRUE, $indent =
             $row[$current_grant . '_priv'] = in_array($current_grant, $users_grants) ? 'Y' : 'N';
         }
         unset($row['Table_priv'], $current_grant, $av_grants, $users_grants);
-        $res = PMA_DBI_query('SHOW COLUMNS FROM `' . $db . '`.`' . $table . '`;');
+        $res = PMA_DBI_try_query('SHOW COLUMNS FROM `' . $db . '`.`' . $table . '`;');
         $columns = array();
+        if ($res) {
             while ($row1 = PMA_DBI_fetch_row($res)) {
                 $columns[$row1[0]] = array(
                     'Select' => FALSE,
@@ -204,6 +205,7 @@ function PMA_displayPrivTable($db = '*', $table = '*', $submit = TRUE, $indent =
                 );
             }
             PMA_DBI_free_result($res);
+        }
         unset($res, $row1);
     }
     if (!empty($columns)) {