trunk/modules/m_whowas.c

/*
 *  ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
 *  m_whois.c: Shows who a user was.
 *
 *  Copyright (C) 2002 by the past and present ircd coders, and others.
 *
 *  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., 59 Temple Place, Suite 330, Boston, MA  02111-1307
 *  USA
 *
 *  $Id$
 */

#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 "s_serv.h"
#include "s_user.h"
#include "send.h"
#include "conf.h"
#include "parse.h"
#include "modules.h"


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

  if (parc > 3 && !EmptyString(parv[3]))
    if (hunt_server(client_p, source_p, ":%s WHOWAS %s %s :%s", 3,
                    parc, parv) != HUNTED_ISME)
      return;

  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(source_p, form_str(RPL_WHOWASUSER),
                 me.name, source_p->name, temp->name,
                 temp->username, temp->hostname,
                 temp->realname);

      if (ConfigServerHide.hide_servers && !HasUMode(source_p, UMODE_OPER))
        sendto_one(source_p, form_str(RPL_WHOISSERVER), me.name,
                   source_p->name, temp->name,
                   ServerInfo.network_name, myctime(temp->logoff));
      else
        sendto_one(source_p, form_str(RPL_WHOISSERVER), me.name,
                   source_p->name, temp->name,
                   temp->servername, myctime(temp->logoff));
      ++cur;
    }

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

  if (!cur)
    sendto_one(source_p, form_str(ERR_WASNOSUCHNICK),
               me.name, source_p->name, parv[1]);

  sendto_one(source_p, form_str(RPL_ENDOFWHOWAS),
             me.name, source_p->name, parv[1]);
}

/*
** m_whowas
**      parv[0] = sender prefix
**      parv[1] = nickname queried
*/
static void
m_whowas(struct Client *client_p, struct Client *source_p,
         int parc, char *parv[])
{
  static time_t last_used = 0;

  if (parc < 2 || EmptyString(parv[1]))
  {
    sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
               me.name, source_p->name);
    return;
  }

  if ((last_used + ConfigFileEntry.pace_wait) > CurrentTime)
  {
    sendto_one(source_p,form_str(RPL_LOAD2HI),
               me.name, source_p->name);
    return;
  }

  last_used = CurrentTime;

  whowas_do(client_p, source_p, parc, parv);
}

static void
mo_whowas(struct Client *client_p, struct Client *source_p,
          int parc, char *parv[])
{
  if (parc < 2 || EmptyString(parv[1]))
  {
    sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
               me.name, source_p->name);
    return;
  }

  whowas_do(client_p, source_p, parc, parv);
}

static struct Message whowas_msgtab = {
  "WHOWAS", 0, 0, 0, MAXPARA, MFLG_SLOW, 0,
  { m_unregistered, m_whowas, mo_whowas, m_ignore, mo_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:	2076
Committed:	Fri May 17 16:25:48 2013 UTC (13 years, 2 months ago) by michael
Content type:	text/x-csrc
File size:	4193 byte(s)
Log Message:	- m_whowas.c:whowas_do(): minor cleanups and optimizations
#	User	Rev	Content
1	adx	30	/*
2			* ircd-hybrid: an advanced Internet Relay Chat Daemon(ircd).
3			* m_whois.c: Shows who a user was.
4			*
5			* Copyright (C) 2002 by the past and present ircd coders, and others.
6			*
7			* This program is free software; you can redistribute it and/or modify
8			* it under the terms of the GNU General Public License as published by
9			* the Free Software Foundation; either version 2 of the License, or
10			* (at your option) any later version.
11			*
12			* This program is distributed in the hope that it will be useful,
13			* but WITHOUT ANY WARRANTY; without even the implied warranty of
14			* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
15			* GNU General Public License for more details.
16			*
17			* You should have received a copy of the GNU General Public License
18			* along with this program; if not, write to the Free Software
19			* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
20			* USA
21			*
22	knight	31	* $Id$
23	adx	30	*/
24
25			#include "stdinc.h"
26	michael	1358	#include "list.h"
27	adx	30	#include "whowas.h"
28			#include "client.h"
29			#include "hash.h"
30			#include "irc_string.h"
31			#include "ircd.h"
32			#include "ircd_defs.h"
33			#include "numeric.h"
34			#include "s_serv.h"
35			#include "s_user.h"
36			#include "send.h"
37	michael	1309	#include "conf.h"
38	adx	30	#include "parse.h"
39			#include "modules.h"
40
41
42			static void
43			whowas_do(struct Client client_p, struct Client source_p,
44	michael	1857	const int parc, char *parv[])
45	adx	30	{
46			int cur = 0;
47			int max = -1;
48	michael	1358	const dlink_node *ptr = NULL;
49	adx	30
50	michael	2076	if (parc > 3 && !EmptyString(parv[3]))
51	michael	143	if (hunt_server(client_p, source_p, ":%s WHOWAS %s %s :%s", 3,
52			parc, parv) != HUNTED_ISME)
53	adx	30	return;
54
55	michael	2076	if (parc > 2 && !EmptyString(parv[2]))
56			if ((max = atoi(parv[2])) > 20 && !MyConnect(source_p))
57			max = 20;
58	adx	30
59	michael	2076	DLINK_FOREACH(ptr, WHOWASHASH[strhash(parv[1])].head)
60	michael	1358	{
61			const struct Whowas *temp = ptr->data;
62	adx	30
63	michael	2076	if (!irccmp(parv[1], temp->name))
64	adx	30	{
65	michael	1834	sendto_one(source_p, form_str(RPL_WHOWASUSER),
66	adx	30	me.name, source_p->name, temp->name,
67			temp->username, temp->hostname,
68			temp->realname);
69
70	michael	1219	if (ConfigServerHide.hide_servers && !HasUMode(source_p, UMODE_OPER))
71	michael	2076	sendto_one(source_p, form_str(RPL_WHOISSERVER), me.name,
72			source_p->name, temp->name,
73	adx	30	ServerInfo.network_name, myctime(temp->logoff));
74			else
75	michael	2076	sendto_one(source_p, form_str(RPL_WHOISSERVER), me.name,
76			source_p->name, temp->name,
77	adx	30	temp->servername, myctime(temp->logoff));
78	michael	1358	++cur;
79	adx	30	}
80
81			if (max > 0 && cur >= max)
82			break;
83			}
84
85			if (!cur)
86	michael	1834	sendto_one(source_p, form_str(ERR_WASNOSUCHNICK),
87	michael	2076	me.name, source_p->name, parv[1]);
88	adx	30
89	michael	1834	sendto_one(source_p, form_str(RPL_ENDOFWHOWAS),
90	adx	30	me.name, source_p->name, parv[1]);
91			}
92	michael	1230
93			/*
94			** m_whowas
95			** parv[0] = sender prefix
96			** parv[1] = nickname queried
97			*/
98			static void
99			m_whowas(struct Client client_p, struct Client source_p,
100			int parc, char *parv[])
101			{
102			static time_t last_used = 0;
103
104			if (parc < 2 \|\| EmptyString(parv[1]))
105			{
106	michael	1834	sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
107	michael	1230	me.name, source_p->name);
108			return;
109			}
110
111			if ((last_used + ConfigFileEntry.pace_wait) > CurrentTime)
112			{
113	michael	1834	sendto_one(source_p,form_str(RPL_LOAD2HI),
114	michael	1230	me.name, source_p->name);
115			return;
116			}
117
118			last_used = CurrentTime;
119
120			whowas_do(client_p, source_p, parc, parv);
121			}
122
123			static void
124			mo_whowas(struct Client client_p, struct Client source_p,
125			int parc, char *parv[])
126			{
127			if (parc < 2 \|\| EmptyString(parv[1]))
128			{
129	michael	1834	sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
130	michael	1230	me.name, source_p->name);
131			return;
132			}
133
134			whowas_do(client_p, source_p, parc, parv);
135			}
136
137			static struct Message whowas_msgtab = {
138			"WHOWAS", 0, 0, 0, MAXPARA, MFLG_SLOW, 0,
139			{ m_unregistered, m_whowas, mo_whowas, m_ignore, mo_whowas, m_ignore }
140			};
141
142			static void
143			module_init(void)
144			{
145			mod_add_cmd(&whowas_msgtab);
146			}
147
148			static void
149			module_exit(void)
150			{
151			mod_del_cmd(&whowas_msgtab);
152			}
153
154			struct module module_entry = {
155			.node = { NULL, NULL, NULL },
156			.name = NULL,
157			.version = "$Revision$",
158			.handle = NULL,
159			.modinit = module_init,
160			.modexit = module_exit,
161			.flags = 0
162			};