/************************************************************************
 *   IRC - Internet Relay Chat, modules/m_ping.c
 *
 *   Copyright (C) 2000-2003 TR-IRCD Development
 *
 *   Copyright (C) 1990 Jarkko Oikarinen and
 *                      University of Oulu, Co Center
 *
 *   See file AUTHORS in IRC package for additional names of
 *   the programmers.
 *
 *   This program is free softwmare; 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., 675 Mass Ave, Cambridge, MA 02139, USA.
 */

/* $Id: m_ping.c,v 1.3 2003/06/14 13:55:51 tr-ircd Exp $ */

#include "struct.h"
#include "common.h"
#include "sys.h"
#include "numeric.h"
#include "msg.h"
#include "channel.h"
#include "h.h"

static char *token = TOK1_PING;

static struct Message _msgtab[] = {
    {MSG_PING, 0, MAXPARA, M_SLOW, 0L,
     m_unregistered, m_ping, m_ping, m_ping, m_ping}
};

#ifndef STATIC_MODULES

char *_version = "$Revision: 1.3 $";

void _modinit(void)
{
    mod_add_cmd(_msgtab);
    tok1_msgtab[(u_char) *token].msg = _msgtab;
}

void _moddeinit(void)
{
    mod_del_cmd(_msgtab);
    tok1_msgtab[(u_char) *token].msg = NULL;
}
#else
void m_ping_init(void)
{
    mod_add_cmd(_msgtab);
    tok1_msgtab[(u_char) *token].msg = _msgtab;
}
#endif

/*
 * * m_ping * parv[0] = sender prefix *       parv[1] = origin *
 * parv[2] = destination
 */
int m_ping(aClient *cptr, aClient *sptr, int parc, char *parv[])
{
    aClient *acptr;
    char *origin, *destination;

    if (parc < 2 || *parv[1] == '\0') {
	send_me_numeric(sptr, ERR_NOORIGIN);
	return 0;
    }
    origin = parv[1];
    destination = parv[2];
    /* Will get NULL or pointer (parc >= 2!!) */

    acptr = find_client(origin);
    if (!acptr)
	acptr = find_server(origin);
    if (acptr && acptr != sptr)
	origin = cptr->name;
    if (!BadPtr(destination) && irc_strcmp(destination, me.name) != 0) {
	if ((acptr = find_server(destination)))
	    sendto_one(acptr, ":%C %s %s :%s", sptr, MSG_PING, origin, destination);
	else {
	    send_me_numeric(sptr, ERR_NOSUCHSERVER, destination);
	    return 0;
	}
    } else
	sendto_one_server(sptr, &me, TOK1_PONG, "%s :%s",
		   (destination) ? destination : me.name, origin);

    return 0;
}