trunk/modules/m_whowas.c

/*
 *  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_whowas.c
 * \brief Includes required functions for processing the WHOWAS command.
 * \version $Id$
 */

#include "stdinc.h"
#include "list.h"
#include "whowas.h"
#include "client.h"
#include "hash.h"
#include "irc_string.h"
#include "ircd.h"
#include "numeric.h"
#include "misc.h"
#include "server.h"
#include "send.h"
#include "conf.h"
#include "parse.h"
#include "modules.h"


enum { WHOWAS_MAX_REPLIES = 20 };  /* Only applies to remote clients */

static void
do_whowas(struct Client *source_p, const int parc, char *parv[])
{
  int count = 0, max = -1;
  dlink_node *node;

  if (parc > 2 && !EmptyString(parv[2]))
    max = atoi(parv[2]);

  if (!MyConnect(source_p) && (max <= 0 || max > WHOWAS_MAX_REPLIES))
    max = WHOWAS_MAX_REPLIES;

  DLINK_FOREACH(node, whowas_get_hash(strhash(parv[1]))->head)
  {
    const struct Whowas *whowas = node->data;

    if (irccmp(parv[1], whowas->name) == 0)
    {
      sendto_one_numeric(source_p, &me, RPL_WHOWASUSER, whowas->name,
                         whowas->username, whowas->hostname,
                         whowas->realname);

      if (HasUMode(source_p, UMODE_OPER))
        sendto_one_numeric(source_p, &me, RPL_WHOISACTUALLY, whowas->name,
                           whowas->username, whowas->realhost,
                           whowas->sockhost);

      if (strcmp(whowas->account, "*"))
        sendto_one_numeric(source_p, &me, RPL_WHOISACCOUNT, whowas->name, whowas->account, "was");

      if ((whowas->server_hidden || ConfigServerHide.hide_servers) && !HasUMode(source_p, UMODE_OPER))
        sendto_one_numeric(source_p, &me, RPL_WHOISSERVER, whowas->name,
                           ConfigServerInfo.network_name, date_ctime(whowas->logoff));
      else
        sendto_one_numeric(source_p, &me, RPL_WHOISSERVER, whowas->name,
                           whowas->servername, date_ctime(whowas->logoff));
      ++count;
    }

    if (max > 0 && count >= max)
      break;
  }

  if (count == 0)
    sendto_one_numeric(source_p, &me, ERR_WASNOSUCHNICK, parv[1]);

  sendto_one_numeric(source_p, &me, RPL_ENDOFWHOWAS, parv[1]);
}

/*! \brief WHOWAS 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] = nickname
 *      - parv[2] = count
 *      - parv[3] = nickname/servername
 */
static int
m_whowas(struct Client *source_p, int parc, char *parv[])
{
  static uintmax_t last_used = 0;

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

  if ((last_used + ConfigGeneral.pace_wait) > CurrentTime)
  {
    sendto_one_numeric(source_p, &me, RPL_LOAD2HI, "WHOWAS");
    return 0;
  }

  last_used = CurrentTime;

  if (ConfigServerHide.disable_remote_commands == 0)
    if (server_hunt(source_p, ":%s WHOWAS %s %s :%s", 3, parc, parv)->ret != HUNTED_ISME)
      return 0;

  do_whowas(source_p, parc, parv);
  return 0;
}

/*! \brief WHOWAS 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] = nickname
 *      - parv[2] = count
 *      - parv[3] = nickname/servername
 */
static int
ms_whowas(struct Client *source_p, int parc, char *parv[])
{
  if (parc < 2 || EmptyString(parv[1]))
  {
    sendto_one_numeric(source_p, &me, ERR_NONICKNAMEGIVEN);
    return 0;
  }

  if (server_hunt(source_p, ":%s WHOWAS %s %s :%s", 3, parc, parv)->ret != HUNTED_ISME)
    return 0;

  do_whowas(source_p, parc, parv);
  return 0;
}

static struct Message whowas_msgtab =
{
  .cmd = "WHOWAS",
  .args_max = MAXPARA,
  .handlers[UNREGISTERED_HANDLER] = m_unregistered,
  .handlers[CLIENT_HANDLER] = m_whowas,
  .handlers[SERVER_HANDLER] = ms_whowas,
  .handlers[ENCAP_HANDLER] = m_ignore,
  .handlers[OPER_HANDLER] = ms_whowas
};

static void
module_init(void)
{
  mod_add_cmd(&whowas_msgtab);
}

static void
module_exit(void)
{
  mod_del_cmd(&whowas_msgtab);
}

struct module module_entry =
{
  .version = "$Revision$",
  .modinit = module_init,
  .modexit = module_exit,
};
Revision:	8653
Committed:	Sun Nov 11 16:40:11 2018 UTC (7 years, 8 months ago) by michael
Content type:	text/x-csrc
File size:	5582 byte(s)
Log Message:	- Use bool data type in struct Whowas
#	User	Rev	Content
1	adx	30	/*
2	michael	2820	* ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
3	adx	30	*
4	michael	8279	* Copyright (c) 1997-2018 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_whowas.c
23			* \brief Includes required functions for processing the WHOWAS command.
24			* \version $Id$
25			*/
26
27	adx	30	#include "stdinc.h"
28	michael	1358	#include "list.h"
29	adx	30	#include "whowas.h"
30			#include "client.h"
31			#include "hash.h"
32			#include "irc_string.h"
33			#include "ircd.h"
34			#include "numeric.h"
35	michael	3347	#include "misc.h"
36			#include "server.h"
37	adx	30	#include "send.h"
38	michael	1309	#include "conf.h"
39	adx	30	#include "parse.h"
40			#include "modules.h"
41
42
43	michael	6350	enum { WHOWAS_MAX_REPLIES = 20 }; /* Only applies to remote clients */
44	michael	5638
45	adx	30	static void
46	michael	3338	do_whowas(struct Client source_p, const int parc, char parv[])
47	adx	30	{
48	michael	7989	int count = 0, max = -1;
49	michael	7687	dlink_node *node;
50	adx	30
51	michael	2076	if (parc > 2 && !EmptyString(parv[2]))
52	michael	5638	max = atoi(parv[2]);
53	adx	30
54	michael	5638	if (!MyConnect(source_p) && (max <= 0 \|\| max > WHOWAS_MAX_REPLIES))
55			max = WHOWAS_MAX_REPLIES;
56
57	michael	7449	DLINK_FOREACH(node, whowas_get_hash(strhash(parv[1]))->head)
58	michael	1358	{
59	michael	6652	const struct Whowas *whowas = node->data;
60	adx	30
61	michael	8603	if (irccmp(parv[1], whowas->name) == 0)
62	adx	30	{
63	michael	6652	sendto_one_numeric(source_p, &me, RPL_WHOWASUSER, whowas->name,
64			whowas->username, whowas->hostname,
65			whowas->realname);
66	adx	30
67	michael	5631	if (HasUMode(source_p, UMODE_OPER))
68	michael	6831	sendto_one_numeric(source_p, &me, RPL_WHOISACTUALLY, whowas->name,
69	michael	8214	whowas->username, whowas->realhost,
70	michael	6831	whowas->sockhost);
71	michael	5631
72	michael	6827	if (strcmp(whowas->account, "*"))
73	michael	6652	sendto_one_numeric(source_p, &me, RPL_WHOISACCOUNT, whowas->name, whowas->account, "was");
74	michael	4767
75	michael	8653	if ((whowas->server_hidden \|\| ConfigServerHide.hide_servers) && !HasUMode(source_p, UMODE_OPER))
76	michael	6652	sendto_one_numeric(source_p, &me, RPL_WHOISSERVER, whowas->name,
77			ConfigServerInfo.network_name, date_ctime(whowas->logoff));
78	adx	30	else
79	michael	6652	sendto_one_numeric(source_p, &me, RPL_WHOISSERVER, whowas->name,
80			whowas->servername, date_ctime(whowas->logoff));
81	michael	7989	++count;
82	adx	30	}
83
84	michael	7989	if (max > 0 && count >= max)
85	adx	30	break;
86			}
87
88	michael	8603	if (count == 0)
89	michael	3109	sendto_one_numeric(source_p, &me, ERR_WASNOSUCHNICK, parv[1]);
90	adx	30
91	michael	3109	sendto_one_numeric(source_p, &me, RPL_ENDOFWHOWAS, parv[1]);
92	adx	30	}
93	michael	1230
94	michael	3295	/*! \brief WHOWAS command handler
95			*
96			* \param source_p Pointer to allocated Client struct from which the message
97			* originally comes from. This can be a local or remote client.
98			* \param parc Integer holding the number of supplied arguments.
99			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
100			* pointers.
101			* \note Valid arguments for this command are:
102			* - parv[0] = command
103			* - parv[1] = nickname
104			* - parv[2] = count
105			* - parv[3] = nickname/servername
106			*/
107	michael	2820	static int
108	michael	3156	m_whowas(struct Client source_p, int parc, char parv[])
109	michael	1230	{
110	michael	7330	static uintmax_t last_used = 0;
111	michael	1230
112			if (parc < 2 \|\| EmptyString(parv[1]))
113			{
114	michael	3109	sendto_one_numeric(source_p, &me, ERR_NONICKNAMEGIVEN);
115	michael	2820	return 0;
116	michael	1230	}
117
118	michael	4340	if ((last_used + ConfigGeneral.pace_wait) > CurrentTime)
119	michael	1230	{
120	michael	4759	sendto_one_numeric(source_p, &me, RPL_LOAD2HI, "WHOWAS");
121	michael	2820	return 0;
122	michael	1230	}
123
124			last_used = CurrentTime;
125
126	michael	8603	if (ConfigServerHide.disable_remote_commands == 0)
127	michael	7971	if (server_hunt(source_p, ":%s WHOWAS %s %s :%s", 3, parc, parv)->ret != HUNTED_ISME)
128	michael	2986	return 0;
129
130	michael	3338	do_whowas(source_p, parc, parv);
131	michael	2820	return 0;
132	michael	1230	}
133
134	michael	3295	/*! \brief WHOWAS command handler
135			*
136			* \param source_p Pointer to allocated Client struct from which the message
137			* originally comes from. This can be a local or remote client.
138			* \param parc Integer holding the number of supplied arguments.
139			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
140			* pointers.
141			* \note Valid arguments for this command are:
142			* - parv[0] = command
143			* - parv[1] = nickname
144			* - parv[2] = count
145			* - parv[3] = nickname/servername
146			*/
147	michael	2820	static int
148	michael	3346	ms_whowas(struct Client source_p, int parc, char parv[])
149	michael	1230	{
150			if (parc < 2 \|\| EmptyString(parv[1]))
151			{
152	michael	3109	sendto_one_numeric(source_p, &me, ERR_NONICKNAMEGIVEN);
153	michael	2820	return 0;
154	michael	1230	}
155
156	michael	7971	if (server_hunt(source_p, ":%s WHOWAS %s %s :%s", 3, parc, parv)->ret != HUNTED_ISME)
157	michael	4720	return 0;
158	michael	2986
159	michael	3338	do_whowas(source_p, parc, parv);
160	michael	2820	return 0;
161	michael	1230	}
162
163	michael	2820	static struct Message whowas_msgtab =
164			{
165	michael	5881	.cmd = "WHOWAS",
166			.args_max = MAXPARA,
167			.handlers[UNREGISTERED_HANDLER] = m_unregistered,
168			.handlers[CLIENT_HANDLER] = m_whowas,
169			.handlers[SERVER_HANDLER] = ms_whowas,
170			.handlers[ENCAP_HANDLER] = m_ignore,
171			.handlers[OPER_HANDLER] = ms_whowas
172	michael	1230	};
173
174			static void
175			module_init(void)
176			{
177			mod_add_cmd(&whowas_msgtab);
178			}
179
180			static void
181			module_exit(void)
182			{
183			mod_del_cmd(&whowas_msgtab);
184			}
185
186	michael	2820	struct module module_entry =
187			{
188	michael	1230	.version = "$Revision$",
189			.modinit = module_init,
190			.modexit = module_exit,
191			};