pppd/plugins/minconn.c

/*
 * minconn.c - pppd plugin to implement a `minconnect' option.
 *
 * Copyright 1999 Paul Mackerras.
 *
 *  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 of the License, or (at your option) any later version.
 */
#include <stddef.h>
#include <time.h>
#include "pppd.h"

static int minconnect = 0;

static option_t my_options[] = {
    { "minconnect", o_int, &minconnect,
      "Set minimum connect time before idle timeout applies" },
    { NULL }
};

static int my_get_idle(struct ppp_idle *idle)
{
    time_t t;

    if (idle == NULL)
        return minconnect? minconnect: idle_time_limit;
    t = idle->xmit_idle;
    if (idle->recv_idle < t)
        t = idle->recv_idle;
    return idle_time_limit - t;
}

void plugin_init(void)
{
    info("plugin_init");
    add_options(my_options);
    idle_time_hook = my_get_idle;
}