ircd-hybrid/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 "whowas.h"
#include "handlers.h"
#include "client.h"
#include "common.h"
#include "hash.h"
#include "ircd.h"
#include "ircd_defs.h"
#include "numeric.h"
#include "s_serv.h"
#include "s_user.h"
#include "send.h"
#include "s_conf.h"
#include "msg.h"
#include "parse.h"
#include "modules.h"


static void m_whowas(struct Client *, struct Client *, int, char *[]);
static void mo_whowas(struct Client *, struct Client *, int, char *[]);
static void whowas_do(struct Client *, struct Client *, int, char *[]);

struct Message whowas_msgtab = {
  "WHOWAS", 0, 0, 0, 0, MFLG_SLOW, 0,
  { m_unregistered, m_whowas, mo_whowas, m_ignore, mo_whowas, m_ignore }
};

#ifndef STATIC_MODULES
void
_modinit(void)
{
  mod_add_cmd(&whowas_msgtab);
}

void
_moddeinit(void)
{
  mod_del_cmd(&whowas_msgtab);
}

const char *_version = "$Revision$";
#endif

/*
** 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 || *parv[1] == '\0')
  {
    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 || *parv[1] == '\0')
  {
    sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
               me.name, source_p->name);
    return;
  }

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

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

  if (parc > 2)
  {
    max = atoi(parv[2]);

    if (!MyConnect(source_p) && max > 20)
      max = 20;
  }

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

  nick = parv[1];
  while (*nick == ',')
    nick++;
  if ((p = strchr(nick,',')) != NULL)
    *p = '\0';
  if (*nick == '\0')
    return;

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

    if (!irccmp(nick, 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 && !IsOper(source_p))
        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, nick);

  sendto_one(source_p, form_str(RPL_ENDOFWHOWAS),
             me.name, source_p->name, parv[1]);
}
Revision:	270
Committed:	Mon Nov 14 19:39:35 2005 UTC (20 years, 9 months ago) by adx
Content type:	text/x-csrc
File size:	4364 byte(s)
Log Message:	+ ported rate limiting fixes from 7.2
#	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			#include "whowas.h"
27			#include "handlers.h"
28			#include "client.h"
29			#include "common.h"
30			#include "hash.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			#include "s_conf.h"
38			#include "msg.h"
39			#include "parse.h"
40			#include "modules.h"
41
42
43			static void m_whowas(struct Client , struct Client , int, char *[]);
44			static void mo_whowas(struct Client , struct Client , int, char *[]);
45			static void whowas_do(struct Client , struct Client , int, char *[]);
46
47			struct Message whowas_msgtab = {
48			"WHOWAS", 0, 0, 0, 0, MFLG_SLOW, 0,
49	michael	142	{ m_unregistered, m_whowas, mo_whowas, m_ignore, mo_whowas, m_ignore }
50	adx	30	};
51
52			#ifndef STATIC_MODULES
53			void
54			_modinit(void)
55			{
56			mod_add_cmd(&whowas_msgtab);
57			}
58
59			void
60			_moddeinit(void)
61			{
62			mod_del_cmd(&whowas_msgtab);
63			}
64
65	knight	31	const char *_version = "$Revision$";
66	adx	30	#endif
67
68			/*
69			** m_whowas
70			** parv[0] = sender prefix
71			** parv[1] = nickname queried
72			*/
73			static void
74			m_whowas(struct Client client_p, struct Client source_p,
75			int parc, char *parv[])
76			{
77			static time_t last_used = 0;
78
79			if (parc < 2 \|\| *parv[1] == '\0')
80			{
81			sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
82			me.name, source_p->name);
83			return;
84			}
85
86	adx	270	if ((last_used + ConfigFileEntry.pace_wait) > CurrentTime)
87	adx	30	{
88			sendto_one(source_p,form_str(RPL_LOAD2HI),
89			me.name, source_p->name);
90			return;
91			}
92
93	michael	191	last_used = CurrentTime;
94
95	adx	30	whowas_do(client_p, source_p, parc, parv);
96			}
97
98			static void
99			mo_whowas(struct Client client_p, struct Client source_p,
100			int parc, char *parv[])
101			{
102			if (parc < 2 \|\| *parv[1] == '\0')
103			{
104			sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
105			me.name, source_p->name);
106			return;
107			}
108
109			whowas_do(client_p, source_p, parc, parv);
110			}
111
112			static void
113			whowas_do(struct Client client_p, struct Client source_p,
114			int parc, char *parv[])
115			{
116	michael	191	const dlink_node *ptr = NULL;
117	adx	30	int cur = 0;
118			int max = -1;
119	michael	142	char p = NULL, nick = NULL;
120	adx	30
121			if (parc > 2)
122	michael	144	{
123	adx	30	max = atoi(parv[2]);
124	michael	142
125	michael	144	if (!MyConnect(source_p) && max > 20)
126			max = 20;
127			}
128
129	adx	30	if (parc > 3)
130	michael	142	if (hunt_server(client_p, source_p, ":%s WHOWAS %s %s :%s", 3,
131			parc, parv) != HUNTED_ISME)
132	adx	30	return;
133
134			nick = parv[1];
135			while (*nick == ',')
136			nick++;
137			if ((p = strchr(nick,',')) != NULL)
138			*p = '\0';
139			if (*nick == '\0')
140			return;
141
142	michael	191	DLINK_FOREACH(ptr, WHOWASHASH[strhash(nick)].head)
143	adx	30	{
144	michael	191	const struct Whowas *temp = ptr->data;
145
146			if (!irccmp(nick, temp->name))
147	adx	30	{
148			sendto_one(source_p, form_str(RPL_WHOWASUSER),
149			me.name, source_p->name, temp->name,
150			temp->username, temp->hostname,
151			temp->realname);
152
153			if (ConfigServerHide.hide_servers && !IsOper(source_p))
154			sendto_one(source_p, form_str(RPL_WHOISSERVER),
155			me.name, source_p->name, temp->name,
156			ServerInfo.network_name, myctime(temp->logoff));
157			else
158			sendto_one(source_p, form_str(RPL_WHOISSERVER),
159			me.name, source_p->name, temp->name,
160			temp->servername, myctime(temp->logoff));
161	michael	142	++cur;
162	adx	30	}
163
164			if (max > 0 && cur >= max)
165			break;
166			}
167
168			if (!cur)
169			sendto_one(source_p, form_str(ERR_WASNOSUCHNICK),
170			me.name, source_p->name, nick);
171
172			sendto_one(source_p, form_str(RPL_ENDOFWHOWAS),
173			me.name, source_p->name, parv[1]);
174			}