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/*
* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
*
* Copyright (c) 1997-2018 ircd-hybrid development team
*
* 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.
*
* 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., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
* USA
*/
/*! \file m_pong.c
* \brief Includes required functions for processing the PONG command.
* \version $Id: m_pong.c 8436 2018-03-29 09:04:53Z michael $
*/
#include "stdinc.h"
#include "ircd.h"
#include "user.h"
#include "client.h"
#include "hash.h"
#include "numeric.h"
#include "conf.h"
#include "send.h"
#include "irc_string.h"
#include "parse.h"
#include "modules.h"
#include "server.h"
/*! \brief PONG command handler
*
* \param source_p Pointer to allocated Client struct from which the message
* originally comes from. This can be a local or remote client.
* \param parc Integer holding the number of supplied arguments.
* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
* pointers.
* \note Valid arguments for this command are:
* - parv[0] = command
* - parv[1] = origin
* - parv[2] = destination
*/
static int
ms_pong(struct Client *source_p, int parc, char *parv[])
{
if (parc < 2 || EmptyString(parv[1]))
{
sendto_one_numeric(source_p, &me, ERR_NOORIGIN);
return 0;
}
const char *const destination = parv[2];
if (!EmptyString(destination))
{
struct Client *target_p;
if ((target_p = hash_find_client(destination)) ||
(target_p = hash_find_id(destination)))
{
if (!IsMe(target_p) && target_p->from != source_p->from)
sendto_one(target_p, ":%s PONG %s %s",
ID_or_name(source_p, target_p), parv[1],
ID_or_name(target_p, target_p));
}
else if (!IsDigit(*destination))
sendto_one_numeric(source_p, &me, ERR_NOSUCHSERVER, destination);
}
return 0;
}
/*! \brief PONG command handler
*
* \param source_p Pointer to allocated Client struct from which the message
* originally comes from. This can be a local or remote client.
* \param parc Integer holding the number of supplied arguments.
* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
* pointers.
* \note Valid arguments for this command are:
* - parv[0] = command
* - parv[1] = origin/ping cookie
*/
static int
mr_pong(struct Client *source_p, int parc, char *parv[])
{
assert(MyConnect(source_p));
if (parc == 2 && !EmptyString(parv[1]))
{
if (ConfigGeneral.ping_cookie && source_p->connection->random_ping)
{
unsigned int incoming_ping = strtoul(parv[1], NULL, 10);
if (source_p->connection->random_ping == incoming_ping)
{
AddFlag(source_p, FLAGS_PING_COOKIE);
if (source_p->connection->registration == 0)
register_local_user(source_p);
}
else
sendto_one_numeric(source_p, &me, ERR_WRONGPONG,
source_p->connection->random_ping);
}
}
else
sendto_one_numeric(source_p, &me, ERR_NOORIGIN);
return 0;
}
static struct Message pong_msgtab =
{
.cmd = "PONG",
.args_max = MAXPARA,
.handlers[UNREGISTERED_HANDLER] = mr_pong,
.handlers[CLIENT_HANDLER] = m_ignore,
.handlers[SERVER_HANDLER] = ms_pong,
.handlers[ENCAP_HANDLER] = m_ignore,
.handlers[OPER_HANDLER] = m_ignore
};
static void
module_init(void)
{
mod_add_cmd(&pong_msgtab);
}
static void
module_exit(void)
{
mod_del_cmd(&pong_msgtab);
}
struct module module_entry =
{
.version = "$Revision: 8436 $",
.modinit = module_init,
.modexit = module_exit,
};
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