+/* =======================================================================
+ locking
+ ======================================================================= */
+
+#ifndef NO_LOCKING
+extern Bool unlock_p (saver_info *si);
+extern Bool lock_init (int argc, char **argv);
+extern Bool passwd_valid_p (const char *typed_passwd);
+
+extern void make_passwd_window (saver_info *si);
+extern void draw_passwd_window (saver_info *si);
+extern void update_passwd_window (saver_info *si, const char *printed_passwd,
+ float ratio);
+extern void destroy_passwd_window (saver_info *si);
+
+#endif /* NO_LOCKING */
+
+/* =======================================================================
+ runtime privileges
+ ======================================================================= */
+
+extern void hack_uid (saver_info *si);
+extern void describe_uids (saver_info *si, FILE *out);
+
+/* =======================================================================
+ demoing
+ ======================================================================= */
+
+extern void draw_shaded_rectangle (Display *dpy, Window window,
+ int x, int y,
+ int width, int height,
+ int thickness,
+ unsigned long top_color,
+ unsigned long bottom_color);
+extern int string_width (XFontStruct *font, char *s);
+
+
+#ifndef NO_DEMO_MODE
+extern void demo_mode (saver_info *si);
+extern void demo_mode_restart_process (saver_info *si);
+extern void create_demo_dialog (Widget, Visual *, Colormap);
+extern void create_resources_dialog (Widget, Visual *, Colormap);
+#endif
+
+#if !defined(NO_LOCKING) || !defined(NO_DEMO_MODE)
+extern void pop_up_dialog_box (Widget dialog, Widget form, int where);
+extern void format_into_label (Widget label, const char *arg);
+extern void steal_focus_and_colormap (Widget dialog);
+#endif
+
+extern void make_splash_dialog (saver_info *si);
+extern void handle_splash_event (saver_info *si, XEvent *e);
+extern void skull (Display *, Window, GC, GC, int, int, int, int);
+
+
+/* =======================================================================
+ timers
+ ======================================================================= */
+
+extern void start_notice_events_timer (saver_info *, Window);
+extern void cycle_timer (XtPointer si, XtIntervalId *id);
+extern void activate_lock_timer (XtPointer si, XtIntervalId *id);
+extern void reset_watchdog_timer (saver_info *si, Bool on_p);
+extern void idle_timer (XtPointer si, XtIntervalId *id);
+extern void sleep_until_idle (saver_info *si, Bool until_idle_p);
+
+/* =======================================================================
+ remote control
+ ======================================================================= */
+
+extern Bool handle_clientmessage (saver_info *, XEvent *, Bool);
+
+/* =======================================================================
+ subprocs
+ ======================================================================= */
+
+extern void hack_environment (saver_info *si);
+extern void init_sigchld (void);
+extern void spawn_screenhack (saver_info *si, Bool first_time_p);
+extern void kill_screenhack (saver_info *si);
+extern void suspend_screenhack (saver_info *si, Bool suspend_p);
+extern Bool screenhack_running_p (saver_info *si);
+extern void emergency_kill_subproc (saver_info *si);
+extern Bool select_visual (saver_screen_info *ssi, const char *visual_name);
+extern const char *signal_name (int signal);
+
+/* =======================================================================
+ subprocs diagnostics
+ ======================================================================= */