trunk/modules/m_whowas.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_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 *ptr = NULL;

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

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

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

      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:	4759
Committed:	Sun Oct 19 10:54:43 2014 UTC (11 years, 9 months ago) by michael
Content type:	text/x-csrc
File size:	5013 byte(s)
Log Message:	- Improved RPL_LOAD2HI numeric
#	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_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	1358	const dlink_node *ptr = 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	2076	DLINK_FOREACH(ptr, WHOWASHASH[strhash(parv[1])].head)
56	michael	1358	{
57			const struct Whowas *temp = ptr->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	2748	if ((temp->shide \|\| ConfigServerHide.hide_servers) && !HasUMode(source_p, UMODE_OPER))
66	michael	3109	sendto_one_numeric(source_p, &me, RPL_WHOISSERVER, temp->name,
67	michael	4340	ConfigServerInfo.network_name, myctime(temp->logoff));
68	adx	30	else
69	michael	3109	sendto_one_numeric(source_p, &me, RPL_WHOISSERVER, temp->name,
70			temp->servername, myctime(temp->logoff));
71	michael	1358	++cur;
72	adx	30	}
73
74			if (max > 0 && cur >= max)
75			break;
76			}
77
78			if (!cur)
79	michael	3109	sendto_one_numeric(source_p, &me, ERR_WASNOSUCHNICK, parv[1]);
80	adx	30
81	michael	3109	sendto_one_numeric(source_p, &me, RPL_ENDOFWHOWAS, parv[1]);
82	adx	30	}
83	michael	1230
84	michael	3295	/*! \brief WHOWAS command handler
85			*
86			* \param source_p Pointer to allocated Client struct from which the message
87			* originally comes from. This can be a local or remote client.
88			* \param parc Integer holding the number of supplied arguments.
89			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
90			* pointers.
91			* \note Valid arguments for this command are:
92			* - parv[0] = command
93			* - parv[1] = nickname
94			* - parv[2] = count
95			* - parv[3] = nickname/servername
96			*/
97	michael	2820	static int
98	michael	3156	m_whowas(struct Client source_p, int parc, char parv[])
99	michael	1230	{
100			static time_t last_used = 0;
101
102			if (parc < 2 \|\| EmptyString(parv[1]))
103			{
104	michael	3109	sendto_one_numeric(source_p, &me, ERR_NONICKNAMEGIVEN);
105	michael	2820	return 0;
106	michael	1230	}
107
108	michael	4340	if ((last_used + ConfigGeneral.pace_wait) > CurrentTime)
109	michael	1230	{
110	michael	4759	sendto_one_numeric(source_p, &me, RPL_LOAD2HI, "WHOWAS");
111	michael	2820	return 0;
112	michael	1230	}
113
114			last_used = CurrentTime;
115
116	michael	4720	if (!ConfigServerHide.disable_remote_commands)
117			if (hunt_server(source_p, ":%s WHOWAS %s %s :%s", 3, parc, parv) != HUNTED_ISME)
118	michael	2986	return 0;
119
120	michael	3338	do_whowas(source_p, parc, parv);
121	michael	2820	return 0;
122	michael	1230	}
123
124	michael	3295	/*! \brief WHOWAS command handler
125			*
126			* \param source_p Pointer to allocated Client struct from which the message
127			* originally comes from. This can be a local or remote client.
128			* \param parc Integer holding the number of supplied arguments.
129			* \param parv Argument vector where parv[0] .. parv[parc-1] are non-NULL
130			* pointers.
131			* \note Valid arguments for this command are:
132			* - parv[0] = command
133			* - parv[1] = nickname
134			* - parv[2] = count
135			* - parv[3] = nickname/servername
136			*/
137	michael	2820	static int
138	michael	3346	ms_whowas(struct Client source_p, int parc, char parv[])
139	michael	1230	{
140			if (parc < 2 \|\| EmptyString(parv[1]))
141			{
142	michael	3109	sendto_one_numeric(source_p, &me, ERR_NONICKNAMEGIVEN);
143	michael	2820	return 0;
144	michael	1230	}
145
146	michael	4720	if (hunt_server(source_p, ":%s WHOWAS %s %s :%s", 3, parc, parv) != HUNTED_ISME)
147			return 0;
148	michael	2986
149	michael	3338	do_whowas(source_p, parc, parv);
150	michael	2820	return 0;
151	michael	1230	}
152
153	michael	2820	static struct Message whowas_msgtab =
154			{
155	michael	4545	"WHOWAS", NULL, 0, 0, 0, MAXPARA, MFLG_SLOW, 0,
156	michael	3346	{ m_unregistered, m_whowas, ms_whowas, m_ignore, ms_whowas, m_ignore }
157	michael	1230	};
158
159			static void
160			module_init(void)
161			{
162			mod_add_cmd(&whowas_msgtab);
163			}
164
165			static void
166			module_exit(void)
167			{
168			mod_del_cmd(&whowas_msgtab);
169			}
170
171	michael	2820	struct module module_entry =
172			{
173	michael	1230	.node = { NULL, NULL, NULL },
174			.name = NULL,
175			.version = "$Revision$",
176			.handle = NULL,
177			.modinit = module_init,
178			.modexit = module_exit,
179			.flags = 0
180			};