/*
 * keepalive.c
 *
 * simple program to keep a gateway telnet connection alive.
 *
 */

/* Modified by Alan Bishoff for extra portability.  Specifically hp/ux, probably others */

#include <stdio.h>
#include <unistd.h>
#include <stdlib.h>
#include <string.h>

int main()
{
   int sleep_dur = 30;
   int output_char = '\0';


   while(isatty(STDOUT_FILENO))
   {
      putc(output_char, stdout);
      fflush(stdout);
      sleep(sleep_dur);
   }

   return 0;
}