xref: /freebsd/contrib/tcp_wrappers/clean_exit.c (revision d9a42747950146bf03cda7f6e25d219253f8a57a)
1  /*
2   * clean_exit() cleans up and terminates the program. It should be called
3   * instead of exit() when for some reason the real network daemon will not or
4   * cannot be run. Reason: in the case of a datagram-oriented service we must
5   * discard the not-yet received data from the client. Otherwise, inetd will
6   * see the same datagram again and again, and go into a loop.
7   *
8   * Author: Wietse Venema, Eindhoven University of Technology, The Netherlands.
9   */
10 
11 #ifndef lint
12 static char sccsid[] = "@(#) clean_exit.c 1.4 94/12/28 17:42:19";
13 #endif
14 
15 #include <stdio.h>
16 #include <unistd.h>
17 
18 extern void exit();
19 
20 #include "tcpd.h"
21 
22 /* clean_exit - clean up and exit */
23 
24 void    clean_exit(struct request_info *request)
25 {
26 
27     /*
28      * In case of unconnected protocols we must eat up the not-yet received
29      * data or inetd will loop.
30      */
31 
32     if (request->sink)
33 	request->sink(request->fd);
34 
35     /*
36      * Be kind to the inetd. We already reported the problem via the syslogd,
37      * and there is no need for additional garbage in the logfile.
38      */
39 
40     sleep(5);
41     exit(0);
42 }
43