Forgotten to add

+/* GNU mailutils - a suite of utilities for electronic mail
+   Copyright (C) 1999, 2000, 2001 Free Software Foundation, Inc.
+
+   This program is free software; you can redistribute it and/or modify
+   it under the terms of the GNU General Public License as published by
+   the Free Software Foundation; either version 2, or (at your option)
+   any later version.
+
+   This program is distributed in the hope that it will be useful,
+   but WITHOUT ANY WARRANTY; without even the implied warranty of
+   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
+   GNU General Public License for more details.
+
+   You should have received a copy of the GNU General Public License
+   along with this program; if not, write to the Free Software
+   Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.  */
+
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <unistd.h>
+#include <stdlib.h>
+#include <stdio.h>
+
+#include <sys/types.h>
+#include <sys/stat.h>
+#include <sys/time.h>
+#include <sys/socket.h>
+#include <netinet/in.h>
+#include <arpa/inet.h>
+#include <signal.h>
+#include <errno.h>
+#include <termios.h>
+#include <syslog.h>
+#include <string.h>
+#include <pwd.h>
+#include <getopt.h>
+
+#ifndef INADDR_NONE
+# define INADDR_NONE -1
+#endif
+
+unsigned maxrequests;
+time_t request_control_interval;
+time_t overflow_control_interval;
+time_t overflow_delay_time;
+int maxlines;
+
+extern void read_config (char *config_file);
+int acl_match (struct sockaddr_in *sa_in);