contrib/tcp_wrappers/clean_exit.c

   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
  17 extern void exit();
  18
  19 #include "tcpd.h"
  20
  21 /* clean_exit - clean up and exit */
  22
  23 void    clean_exit(request)
  24 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 }