trunk/modules/m_pong.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1997-2014 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"


/*! \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[])
{
  struct Client *target_p;
  const char *origin, *destination;

  if (parc < 2 || EmptyString(parv[1]))
  {
    sendto_one_numeric(source_p, &me, ERR_NOORIGIN);
    return 0;
  }

  origin = parv[1];
  destination = parv[2];

  /* Now attempt to route the PONG, comstud pointed out routable PING
   * is used for SPING.  routable PING should also probably be left in
   *        -Dianora
   * That being the case, we will route, but only for registered clients (a
   * case can be made to allow them only from servers). -Shadowfax
   */
  if (!EmptyString(destination) && match(destination, me.name) &&
      irccmp(destination, me.id))
  {
    if ((target_p = hash_find_client(destination)) ||
        (target_p = hash_find_server(destination)))
      sendto_one(target_p, ":%s PONG %s %s",
                 source_p->name, origin, destination);
    else
      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->localClient->registration)
    {
      unsigned int incoming_ping = strtoul(parv[1], NULL, 10);

      if (incoming_ping)
      {
        if (source_p->localClient->random_ping == incoming_ping)
        {
          SetPingCookie(source_p);
          register_local_user(source_p);
        }
        else
          sendto_one_numeric(source_p, &me, ERR_WRONGPONG,
                             source_p->localClient->random_ping);
      }
    }
  }
  else
    sendto_one_numeric(source_p, &me, ERR_NOORIGIN);

  return 0;
}

static struct Message pong_msgtab =
{
  "PONG", NULL, 0, 0, 1, MAXPARA, MFLG_SLOW, 0,
  { mr_pong, m_ignore, ms_pong, m_ignore, m_ignore, 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 =
{
  .node    = { NULL, NULL, NULL },
  .name    = NULL,
  .version = "$Revision$",
  .handle  = NULL,
  .modinit = module_init,
  .modexit = module_exit,
  .flags   = 0
};
Revision:	4565
Committed:	Sun Aug 24 10:27:40 2014 UTC (11 years ago) by michael
Content type:	text/x-csrc
File size:	4420 byte(s)
Log Message:	- Update GPL 2 license headers
#	User	Rev	Content
1	adx	30	/*
2	michael	2820	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	adx	30	*
4	michael	2820	* Copyright (c) 1997-2014 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
39
40	michael	3346	/*! \brief PONG command handler
41			*
42			* \param source_p Pointer to allocated Client struct from which the message
43			* originally comes from. This can be a local or remote client.
44			* \param parc Integer holding the number of supplied arguments.
45			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
46			* pointers.
47			* \note Valid arguments for this command are:
48			* - parv[0] = command
49			* - parv[1] = origin
50			* - parv[2] = destination
51			*/
52	michael	2820	static int
53	michael	3156	ms_pong(struct Client source_p, int parc, char parv[])
54	adx	30	{
55			struct Client *target_p;
56			const char origin, destination;
57
58	michael	1121	if (parc < 2 \|\| EmptyString(parv[1]))
59	adx	30	{
60	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOORIGIN);
61	michael	2820	return 0;
62	adx	30	}
63
64			origin = parv[1];
65			destination = parv[2];
66
67			/* Now attempt to route the PONG, comstud pointed out routable PING
68			* is used for SPING. routable PING should also probably be left in
69			* -Dianora
70			* That being the case, we will route, but only for registered clients (a
71			* case can be made to allow them only from servers). -Shadowfax
72			*/
73	michael	1652	if (!EmptyString(destination) && match(destination, me.name) &&
74	adx	30	irccmp(destination, me.id))
75			{
76	michael	1169	if ((target_p = hash_find_client(destination)) \|\|
77			(target_p = hash_find_server(destination)))
78			sendto_one(target_p, ":%s PONG %s %s",
79	michael	1230	source_p->name, origin, destination);
80	michael	1169	else
81	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOSUCHSERVER, destination);
82	adx	30	}
83	michael	2820
84			return 0;
85	adx	30	}
86
87	michael	3346	/*! \brief PONG command handler
88			*
89			* \param source_p Pointer to allocated Client struct from which the message
90			* originally comes from. This can be a local or remote client.
91			* \param parc Integer holding the number of supplied arguments.
92			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
93			* pointers.
94			* \note Valid arguments for this command are:
95			* - parv[0] = command
96			* - parv[1] = origin/ping cookie
97			*/
98	michael	2820	static int
99	michael	3156	mr_pong(struct Client source_p, int parc, char parv[])
100	adx	30	{
101	michael	3156	assert(MyConnect(source_p));
102	michael	503
103	michael	3331	if (parc == 2 && !EmptyString(parv[1]))
104	adx	30	{
105	michael	4340	if (ConfigGeneral.ping_cookie && !source_p->localClient->registration)
106	adx	30	{
107	michael	982	unsigned int incoming_ping = strtoul(parv[1], NULL, 10);
108	michael	503
109			if (incoming_ping)
110			{
111			if (source_p->localClient->random_ping == incoming_ping)
112			{
113			SetPingCookie(source_p);
114	michael	1080	register_local_user(source_p);
115	michael	503	}
116			else
117	michael	3109	sendto_one_numeric(source_p, &me, ERR_WRONGPONG,
118			source_p->localClient->random_ping);
119	adx	30	}
120			}
121	michael	503	}
122	adx	30	else
123	michael	3109	sendto_one_numeric(source_p, &me, ERR_NOORIGIN);
124
125	michael	2820	return 0;
126	adx	30	}
127	michael	1230
128	michael	2820	static struct Message pong_msgtab =
129			{
130	michael	4545	"PONG", NULL, 0, 0, 1, MAXPARA, MFLG_SLOW, 0,
131	michael	2820	{ mr_pong, m_ignore, ms_pong, m_ignore, m_ignore, m_ignore }
132	michael	1230	};
133
134			static void
135			module_init(void)
136			{
137			mod_add_cmd(&pong_msgtab);
138			}
139
140			static void
141			module_exit(void)
142			{
143			mod_del_cmd(&pong_msgtab);
144			}
145
146	michael	2820	struct module module_entry =
147			{
148	michael	1230	.node = { NULL, NULL, NULL },
149			.name = NULL,
150			.version = "$Revision$",
151			.handle = NULL,
152			.modinit = module_init,
153			.modexit = module_exit,
154			.flags = 0
155			};