--- tcpd.h
+++ tcpd.h
@@ -128,6 +128,7 @@
 #ifdef __STDC__
 extern struct request_info *request_init(struct request_info *,...);
 extern struct request_info *request_set(struct request_info *,...);
+extern int hosts_ctl(char *daemon, char *client_name, char *client_addr, char *client_user);
 #else
 extern struct request_info *request_init();	/* initialize request */
 extern struct request_info *request_set();	/* update request structure */