Repair error caused by username with fewer than four characters

contrib/slapd-modules/radiusov/radius.c

@@ -1810,10 +1810,13 @@ respond_to_ttls_md5_challenge(  EAP_MESSAGE *internal_eap_message,
     uint8_t internal_eap_message_id = internal_eap_message->Identifier;
     int internal_eap_message_length = get_eap_length(internal_eap_message);
 
-    if( internal_eap_message_length < 26 )
+    if( internal_eap_message_length < 23 )
         {
+        // Per RFC1994 and RFC3748: Minimum byte count:
+        // Code, Id, Len1, Len2, EAP-response-Type, Value-Size, 16 byte value, one-byte name
         Debug(  LDAP_DEBUG_TRACE,
-                "The internal EAP message, at %d bytes, is too short to be an MD5 challenge response\n",
+                "The internal EAP message, at %d bytes, is too short "
+                "to be a minimum 23-byte MD5 challenge response\n",
                 internal_eap_message_length);
         return FAIL_SILENTLY;
         }

contrib/slapd-modules/radiusov/radiusov.c

@@ -700,6 +700,8 @@ radiusov_create_udp_port(BackendDB *be, ConfigReply *cr, int port_number)
 // ldap://<host>/<base>?<attrs>?<scope>?<filter>
 // ldap_url_parse()
 
+// ldap:///cn=radius,dc=renbud,dc=com?ipa,port?one?(configuration=<desired_config>)
+
 
 static ConfigDriver radius_config_driver;