trunk/modules/m_pong.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1997-2017 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 $Id$
 */

#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)
          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 = "$Revision$",
  .modinit = module_init,
  .modexit = module_exit,
};
Revision:	7924
Committed:	Sat Dec 31 13:57:08 2016 UTC (8 years, 7 months ago) by michael
Content type:	text/x-csrc
File size:	4226 byte(s)
Log Message:	- Update copyright years
#	User	Rev	Content
1	adx	30	/*
2	michael	2820	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	adx	30	*
4	michael	7924	* Copyright (c) 1997-2017 ircd-hybrid development team
5	adx	30	*
6			* This program is free software; you can redistribute it and/or modify
7			* it under the terms of the GNU General Public License as published by
8			* the Free Software Foundation; either version 2 of the License, or
9			* (at your option) any later version.
10			*
11			* This program is distributed in the hope that it will be useful,
12			* but WITHOUT ANY WARRANTY; without even the implied warranty of
13			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14			* GNU General Public License for more details.
15			*
16			* You should have received a copy of the GNU General Public License
17			* along with this program; if not, write to the Free Software
18	michael	4565	* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301
19	adx	30	* USA
20			*/
21
22	michael	2820	/*! \file m_pong.c
23			* \brief Includes required functions for processing the PONG command.
24			* \version $Id$
25			*/
26
27	adx	30	#include "stdinc.h"
28			#include "ircd.h"
29	michael	3347	#include "user.h"
30	adx	30	#include "client.h"
31	michael	2820	#include "hash.h"
32	adx	30	#include "numeric.h"
33	michael	1309	#include "conf.h"
34	adx	30	#include "send.h"
35			#include "irc_string.h"
36			#include "parse.h"
37			#include "modules.h"
38	michael	4712	#include "server.h"
39	adx	30
40
41	michael	3346	/*! \brief PONG command handler
42			*
43			* \param source_p Pointer to allocated Client struct from which the message
44			* originally comes from. This can be a local or remote client.
45			* \param parc Integer holding the number of supplied arguments.
46			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
47			* pointers.
48			* \note Valid arguments for this command are:
49			* - parv[0] = command
50			* - parv[1] = origin
51			* - parv[2] = destination
52			*/
53	michael	2820	static int
54	michael	3156	ms_pong(struct Client source_p, int parc, char parv[])
55	adx	30	{
56	michael	1121	if (parc < 2 \|\| EmptyString(parv[1]))
57	adx	30	{
58	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOORIGIN);
59	michael	2820	return 0;
60	adx	30	}
61
62	michael	7894	const char *const destination = parv[2];
63			if (!EmptyString(destination))
64	adx	30	{
65	michael	7894	struct Client *target_p;
66	michael	1169	if ((target_p = hash_find_client(destination)) \|\|
67	michael	4716	(target_p = hash_find_id(destination)))
68	michael	7892	{
69	michael	7894	if (!IsMe(target_p) && target_p->from != source_p->from)
70	michael	7892	sendto_one(target_p, ":%s PONG %s %s",
71			ID_or_name(source_p, target_p), parv[1],
72			ID_or_name(target_p, target_p));
73			}
74	michael	4712	else if (!IsDigit(*destination))
75	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOSUCHSERVER, destination);
76	adx	30	}
77	michael	2820
78			return 0;
79	adx	30	}
80
81	michael	3346	/*! \brief PONG command handler
82			*
83			* \param source_p Pointer to allocated Client struct from which the message
84			* originally comes from. This can be a local or remote client.
85			* \param parc Integer holding the number of supplied arguments.
86			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
87			* pointers.
88			* \note Valid arguments for this command are:
89			* - parv[0] = command
90			* - parv[1] = origin/ping cookie
91			*/
92	michael	2820	static int
93	michael	3156	mr_pong(struct Client source_p, int parc, char parv[])
94	adx	30	{
95	michael	3156	assert(MyConnect(source_p));
96	michael	503
97	michael	3331	if (parc == 2 && !EmptyString(parv[1]))
98	adx	30	{
99	michael	4886	if (ConfigGeneral.ping_cookie && source_p->connection->random_ping)
100	adx	30	{
101	michael	982	unsigned int incoming_ping = strtoul(parv[1], NULL, 10);
102	michael	503
103	michael	4886	if (source_p->connection->random_ping == incoming_ping)
104	michael	503	{
105	michael	6313	AddFlag(source_p, FLAGS_PING_COOKIE);
106	michael	4886
107			if (!source_p->connection->registration)
108	michael	1080	register_local_user(source_p);
109	adx	30	}
110	michael	4886	else
111			sendto_one_numeric(source_p, &me, ERR_WRONGPONG,
112			source_p->connection->random_ping);
113	adx	30	}
114	michael	503	}
115	adx	30	else
116	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOORIGIN);
117
118	michael	2820	return 0;
119	adx	30	}
120	michael	1230
121	michael	2820	static struct Message pong_msgtab =
122			{
123	michael	5881	.cmd = "PONG",
124			.args_max = MAXPARA,
125			.handlers[UNREGISTERED_HANDLER] = mr_pong,
126			.handlers[CLIENT_HANDLER] = m_ignore,
127			.handlers[SERVER_HANDLER] = ms_pong,
128			.handlers[ENCAP_HANDLER] = m_ignore,
129			.handlers[OPER_HANDLER] = m_ignore
130	michael	1230	};
131
132			static void
133			module_init(void)
134			{
135			mod_add_cmd(&pong_msgtab);
136			}
137
138			static void
139			module_exit(void)
140			{
141			mod_del_cmd(&pong_msgtab);
142			}
143
144	michael	2820	struct module module_entry =
145			{
146	michael	1230	.version = "$Revision$",
147			.modinit = module_init,
148			.modexit = module_exit,
149			};