8.2.x/modules/m_whowas.c

/*
 *  ircd-hybrid: an advanced, lightweight Internet Relay Chat Daemon (ircd)
 *
 *  Copyright (c) 1997-2015 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 "ircd_defs.h"
#include "numeric.h"
#include "misc.h"
#include "server.h"
#include "send.h"
#include "conf.h"
#include "parse.h"
#include "modules.h"


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

  if (parc > 2 && !EmptyString(parv[2]))
    if ((max = atoi(parv[2])) > 20 && !MyConnect(source_p))
      max = 20;

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

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

      if (!IsDigit(temp->account[0]) && temp->account[0] != '*')
        sendto_one_numeric(source_p, &me, RPL_WHOISACCOUNT, temp->name, temp->account, "was");

      if ((temp->shide || ConfigServerHide.hide_servers) && !HasUMode(source_p, UMODE_OPER))
        sendto_one_numeric(source_p, &me, RPL_WHOISSERVER, temp->name,
                           ConfigServerInfo.network_name, myctime(temp->logoff));
      else
        sendto_one_numeric(source_p, &me, RPL_WHOISSERVER, temp->name,
                           temp->servername, myctime(temp->logoff));
      ++cur;
    }

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

  if (!cur)
    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 time_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)
    if (hunt_server(source_p, ":%s WHOWAS %s %s :%s", 3, parc, parv) != 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 (hunt_server(source_p, ":%s WHOWAS %s %s :%s", 3, parc, parv) != HUNTED_ISME)
    return 0;

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

static struct Message whowas_msgtab =
{
  "WHOWAS", NULL, 0, 0, 0, MAXPARA, MFLG_SLOW, 0,
  { m_unregistered, m_whowas, ms_whowas, m_ignore, ms_whowas, m_ignore }
};

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

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

struct module module_entry =
{
  .node    = { NULL, NULL, NULL },
  .name    = NULL,
  .version = "$Revision$",
  .handle  = NULL,
  .modinit = module_init,
  .modexit = module_exit,
  .flags   = 0
};
Revision:	5346
Committed:	Sun Jan 11 12:41:14 2015 UTC (10 years, 7 months ago) by michael
Content type:	text/x-csrc
File size:	5177 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	5346	* Copyright (c) 1997-2015 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	4564	* 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 "ircd_defs.h"
35			#include "numeric.h"
36	michael	3347	#include "misc.h"
37			#include "server.h"
38	adx	30	#include "send.h"
39	michael	1309	#include "conf.h"
40	adx	30	#include "parse.h"
41			#include "modules.h"
42
43
44			static void
45	michael	3338	do_whowas(struct Client source_p, const int parc, char parv[])
46	adx	30	{
47			int cur = 0;
48			int max = -1;
49	michael	4816	const dlink_node *node = NULL;
50	adx	30
51	michael	2076	if (parc > 2 && !EmptyString(parv[2]))
52			if ((max = atoi(parv[2])) > 20 && !MyConnect(source_p))
53			max = 20;
54	adx	30
55	michael	4816	DLINK_FOREACH(node, WHOWASHASH[strhash(parv[1])].head)
56	michael	1358	{
57	michael	4816	const struct Whowas *temp = node->data;
58	adx	30
59	michael	2076	if (!irccmp(parv[1], temp->name))
60	adx	30	{
61	michael	3109	sendto_one_numeric(source_p, &me, RPL_WHOWASUSER, temp->name,
62			temp->username, temp->hostname,
63			temp->realname);
64	adx	30
65	michael	4820	if (!IsDigit(temp->account[0]) && temp->account[0] != '*')
66			sendto_one_numeric(source_p, &me, RPL_WHOISACCOUNT, temp->name, temp->account, "was");
67	michael	4766
68	michael	2748	if ((temp->shide \|\| ConfigServerHide.hide_servers) && !HasUMode(source_p, UMODE_OPER))
69	michael	3109	sendto_one_numeric(source_p, &me, RPL_WHOISSERVER, temp->name,
70	michael	4341	ConfigServerInfo.network_name, myctime(temp->logoff));
71	adx	30	else
72	michael	3109	sendto_one_numeric(source_p, &me, RPL_WHOISSERVER, temp->name,
73			temp->servername, myctime(temp->logoff));
74	michael	1358	++cur;
75	adx	30	}
76
77			if (max > 0 && cur >= max)
78			break;
79			}
80
81			if (!cur)
82	michael	3109	sendto_one_numeric(source_p, &me, ERR_WASNOSUCHNICK, parv[1]);
83	adx	30
84	michael	3109	sendto_one_numeric(source_p, &me, RPL_ENDOFWHOWAS, parv[1]);
85	adx	30	}
86	michael	1230
87	michael	3295	/*! \brief WHOWAS 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] = nickname
97			* - parv[2] = count
98			* - parv[3] = nickname/servername
99			*/
100	michael	2820	static int
101	michael	3156	m_whowas(struct Client source_p, int parc, char parv[])
102	michael	1230	{
103			static time_t last_used = 0;
104
105			if (parc < 2 \|\| EmptyString(parv[1]))
106			{
107	michael	3109	sendto_one_numeric(source_p, &me, ERR_NONICKNAMEGIVEN);
108	michael	2820	return 0;
109	michael	1230	}
110
111	michael	4341	if ((last_used + ConfigGeneral.pace_wait) > CurrentTime)
112	michael	1230	{
113	michael	4758	sendto_one_numeric(source_p, &me, RPL_LOAD2HI, "WHOWAS");
114	michael	2820	return 0;
115	michael	1230	}
116
117			last_used = CurrentTime;
118
119	michael	4719	if (!ConfigServerHide.disable_remote_commands)
120			if (hunt_server(source_p, ":%s WHOWAS %s %s :%s", 3, parc, parv) != HUNTED_ISME)
121	michael	2986	return 0;
122
123	michael	3338	do_whowas(source_p, parc, parv);
124	michael	2820	return 0;
125	michael	1230	}
126
127	michael	3295	/*! \brief WHOWAS command handler
128			*
129			* \param source_p Pointer to allocated Client struct from which the message
130			* originally comes from. This can be a local or remote client.
131			* \param parc Integer holding the number of supplied arguments.
132			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
133			* pointers.
134			* \note Valid arguments for this command are:
135			* - parv[0] = command
136			* - parv[1] = nickname
137			* - parv[2] = count
138			* - parv[3] = nickname/servername
139			*/
140	michael	2820	static int
141	michael	3346	ms_whowas(struct Client source_p, int parc, char parv[])
142	michael	1230	{
143			if (parc < 2 \|\| EmptyString(parv[1]))
144			{
145	michael	3109	sendto_one_numeric(source_p, &me, ERR_NONICKNAMEGIVEN);
146	michael	2820	return 0;
147	michael	1230	}
148
149	michael	4719	if (hunt_server(source_p, ":%s WHOWAS %s %s :%s", 3, parc, parv) != HUNTED_ISME)
150			return 0;
151	michael	2986
152	michael	3338	do_whowas(source_p, parc, parv);
153	michael	2820	return 0;
154	michael	1230	}
155
156	michael	2820	static struct Message whowas_msgtab =
157			{
158	michael	4546	"WHOWAS", NULL, 0, 0, 0, MAXPARA, MFLG_SLOW, 0,
159	michael	3346	{ m_unregistered, m_whowas, ms_whowas, m_ignore, ms_whowas, m_ignore }
160	michael	1230	};
161
162			static void
163			module_init(void)
164			{
165			mod_add_cmd(&whowas_msgtab);
166			}
167
168			static void
169			module_exit(void)
170			{
171			mod_del_cmd(&whowas_msgtab);
172			}
173
174	michael	2820	struct module module_entry =
175			{
176	michael	1230	.node = { NULL, NULL, NULL },
177			.name = NULL,
178			.version = "$Revision$",
179			.handle = NULL,
180			.modinit = module_init,
181			.modexit = module_exit,
182			.flags = 0
183			};