usr/src/cmd/cmd-inet/usr.bin/pppd/plugins/minconn.c

   1 /*
   2  * minconn.c - pppd plugin to implement a `minconnect' option.
   3  *
   4  * Copyright 1999 Paul Mackerras.
   5  *
   6  *  This program is free software; you can redistribute it and/or
   7  *  modify it under the terms of the GNU General Public License
   8  *  as published by the Free Software Foundation; either version
   9  *  2 of the License, or (at your option) any later version.
  10  */
  11 #include <stddef.h>
  12 #include <time.h>
  13 #include "pppd.h"
  14
  15 static int minconnect = 0;
  16
  17 static option_t my_options[] = {
  18         { "minconnect", o_int, &minconnect,
  19           "Set minimum connect time before idle timeout applies" },
  20         { NULL }
  21 };
  22
  23 static int my_get_idle(struct ppp_idle *idle)
  24 {
  25         time_t t;
  26
  27         if (idle == NULL)
  28                 return minconnect? minconnect: idle_time_limit;
  29         t = idle->xmit_idle;
  30         if (idle->recv_idle < t)
  31                 t = idle->recv_idle;
  32         return idle_time_limit - t;
  33 }
  34
  35 void plugin_init(void)
  36 {
  37         info("plugin_init");
  38         add_options(my_options);
  39         idle_time_hook = my_get_idle;
  40 }