+ * Revision 1.70.2.3 2002/11/28 18:14:32 oes
+ * Disable access to critical CGIs via untrusted referrers.
+ * This prevents users from being tricked by malicious websites
+ * into making unintentional configuration changes:
+ *
+ * - Added flag to each cgi_dispatcher that allows or denies
+ * external linking
+ * - Introduced proviorical function that greps for the
+ * referrer header before regular header parsing happens
+ * - Added safety check to dispatch_known_cgi. CGI is called
+ * if (cgi harmless || no referrer || we are referrer).
+ * Else a) toggle calls are modified not to change status and
+ * b) all other calls are denied.
+ *