/* $Id: trigger.C,v 1.2 2000/08/25 22:25:29 fubob Exp $ */

/* Use this program to simulate a herd of SFSRO clients.  You
   can then test the maximum number of sustainable connections per
   second to an SFSRO server.  Warning. this is almost as fast
   as a plain TCP connections.  Running longer than 1/2 second
   will likely use up resources.

*/

/*
 *
 * Copyright (C) 2000 Kevin Fu (fubob@mit.edu)
 *
 * 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, or (at
 * your option) any later version.
 *
 * This program is distributed in the hope that it will be useful, but
 * WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 *
 */

#include <sys/types.h>
#include <sys/socket.h>

//#include "sfsmisc.h"
#include "amisc.h"

int
main (int argc, void *argv[]) 
{

  if (argc != 2) {
    warn << "Usage: " << static_cast<char *>(argv[0]) 
	 << "-t <UDP dest port>: Trigger on this port\n"
	 << "Assumes that broadcast is 18.26.7.255\n";
    exit (-1);
  }

  int udpsock = inetsocket (SOCK_DGRAM);

  if (udpsock < 0) {
    fatal ("socket");
  }

  int broadcast = 1;
  if (setsockopt (udpsock, SOL_SOCKET, SO_BROADCAST, &broadcast,
		  sizeof (broadcast)) < 0)
    fatal ("setsockopt: %m\n");
  
  char buf[1];
  bzero (buf, 1);

  sockaddr_in to;
  bzero (&to, sizeof (to));
  to.sin_family = AF_INET;
  //  to.sin_port = htons (atoi (static_cast<char *>(argv[1])));
  to.sin_port = htons (6667);
  inet_aton ("18.26.7.255", &to.sin_addr);

  int tolen = sizeof(to);

  int err;
  if ((err = sendto (udpsock, buf, 1, 0, (struct sockaddr*)&to, tolen)) < 0) {
    warn << "Error: " << err << "\n";
    fatal ("sendto: %m\n");
  }
  
  return 0;
}