The following lists all the permissions available in Drupal.
<?php
// Render role/permission overview:
$options = array();
foreach (module_list(FALSE, FALSE, TRUE) as $module) {
  print_r($module);
  // Drupal 6
  // if ($permissions = module_invoke($module, 'perm')) {
  //  print_r($permissions);
  // }
  // Drupal 7
  if ($permissions = module_invoke($module, 'permission')) {
    print_r($permissions);
  }
}
?>You could check whether a particular permission is set or not using the following:
<?php
 user_access($string, $account = NULL) 
?>Technologies: