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 "whowas.h"
#include "handlers.h"
#include "client.h"
#include "common.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 "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_simple) > CurrentTime)
  {
    sendto_one(source_p,form_str(RPL_LOAD2HI),
               me.name, source_p->name);
    return;
  }
  else
    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[])
{
  struct Whowas *temp = 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;

  temp  = WHOWASHASH[strhash(nick)];

  for (; temp; temp = temp->next)
  {
    if (irccmp(nick, temp->name) == 0)
    {
      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:	145
Committed:	Sun Oct 16 10:07:13 2005 UTC (20 years, 9 months ago) by michael
Content type:	text/x-csrc
Original Path:	*ircd-hybrid-7.2/modules/m_whowas.c*
File size:	4380 byte(s)
Log Message:	- Limit maximum WHOWAS replies for remote requests to 20, as per H6
#	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 "irc_string.h"
32			#include "ircd.h"
33			#include "ircd_defs.h"
34			#include "numeric.h"
35			#include "s_serv.h"
36			#include "s_user.h"
37			#include "send.h"
38			#include "s_conf.h"
39			#include "msg.h"
40			#include "parse.h"
41			#include "modules.h"
42
43
44			static void m_whowas(struct Client , struct Client , int, char *[]);
45			static void mo_whowas(struct Client , struct Client , int, char *[]);
46			static void whowas_do(struct Client , struct Client , int, char *[]);
47
48			struct Message whowas_msgtab = {
49			"WHOWAS", 0, 0, 0, 0, MFLG_SLOW, 0,
50	michael	143	{ m_unregistered, m_whowas, mo_whowas, m_ignore, mo_whowas, m_ignore }
51	adx	30	};
52
53			#ifndef STATIC_MODULES
54			void
55			_modinit(void)
56			{
57			mod_add_cmd(&whowas_msgtab);
58			}
59
60			void
61			_moddeinit(void)
62			{
63			mod_del_cmd(&whowas_msgtab);
64			}
65
66	knight	31	const char *_version = "$Revision$";
67	adx	30	#endif
68
69			/*
70			** m_whowas
71			** parv[0] = sender prefix
72			** parv[1] = nickname queried
73			*/
74			static void
75			m_whowas(struct Client client_p, struct Client source_p,
76			int parc, char *parv[])
77			{
78			static time_t last_used = 0;
79
80			if (parc < 2 \|\| *parv[1] == '\0')
81			{
82			sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
83			me.name, source_p->name);
84			return;
85			}
86
87			if ((last_used + ConfigFileEntry.pace_wait_simple) > CurrentTime)
88			{
89			sendto_one(source_p,form_str(RPL_LOAD2HI),
90			me.name, source_p->name);
91			return;
92			}
93			else
94			last_used = CurrentTime;
95
96			whowas_do(client_p, source_p, parc, parv);
97			}
98
99			static void
100			mo_whowas(struct Client client_p, struct Client source_p,
101			int parc, char *parv[])
102			{
103			if (parc < 2 \|\| *parv[1] == '\0')
104			{
105			sendto_one(source_p, form_str(ERR_NONICKNAMEGIVEN),
106			me.name, source_p->name);
107			return;
108			}
109
110			whowas_do(client_p, source_p, parc, parv);
111			}
112
113			static void
114			whowas_do(struct Client client_p, struct Client source_p,
115			int parc, char *parv[])
116			{
117			struct Whowas *temp = NULL;
118			int cur = 0;
119			int max = -1;
120	michael	143	char p = NULL, nick = NULL;
121	adx	30
122			if (parc > 2)
123	michael	145	{
124	adx	30	max = atoi(parv[2]);
125	michael	143
126	michael	145	if (!MyConnect(source_p) && max > 20)
127			max = 20;
128			}
129
130	adx	30	if (parc > 3)
131	michael	143	if (hunt_server(client_p, source_p, ":%s WHOWAS %s %s :%s", 3,
132			parc, parv) != HUNTED_ISME)
133	adx	30	return;
134
135			nick = parv[1];
136			while (*nick == ',')
137			nick++;
138			if ((p = strchr(nick,',')) != NULL)
139			*p = '\0';
140			if (*nick == '\0')
141			return;
142
143			temp = WHOWASHASH[strhash(nick)];
144
145			for (; temp; temp = temp->next)
146			{
147			if (irccmp(nick, temp->name) == 0)
148			{
149			sendto_one(source_p, form_str(RPL_WHOWASUSER),
150			me.name, source_p->name, temp->name,
151			temp->username, temp->hostname,
152			temp->realname);
153
154			if (ConfigServerHide.hide_servers && !IsOper(source_p))
155			sendto_one(source_p, form_str(RPL_WHOISSERVER),
156			me.name, source_p->name, temp->name,
157			ServerInfo.network_name, myctime(temp->logoff));
158			else
159			sendto_one(source_p, form_str(RPL_WHOISSERVER),
160			me.name, source_p->name, temp->name,
161			temp->servername, myctime(temp->logoff));
162			cur++;
163			}
164
165			if (max > 0 && cur >= max)
166			break;
167			}
168
169			if (!cur)
170			sendto_one(source_p, form_str(ERR_WASNOSUCHNICK),
171			me.name, source_p->name, nick);
172
173			sendto_one(source_p, form_str(RPL_ENDOFWHOWAS),
174			me.name, source_p->name, parv[1]);
175			}