2 * ircd-ratbox: A slightly useful ircd.
3 * m_whois.c: Shows who a user is.
5 * Copyright (C) 1990 Jarkko Oikarinen and University of Oulu, Co Center
6 * Copyright (C) 1996-2002 Hybrid Development Team
7 * Copyright (C) 2002-2005 ircd-ratbox development team
9 * This program is free software; you can redistribute it and/or modify
10 * it under the terms of the GNU General Public License as published by
11 * the Free Software Foundation; either version 2 of the License, or
12 * (at your option) any later version.
14 * This program is distributed in the hope that it will be useful,
15 * but WITHOUT ANY WARRANTY; without even the implied warranty of
16 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
17 * GNU General Public License for more details.
19 * You should have received a copy of the GNU General Public License
20 * along with this program; if not, write to the Free Software
21 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307
24 * $Id: m_whois.c 3536 2007-07-14 21:50:21Z jilles $
45 #include "s_newconf.h"
46 #include "ipv4_from_ipv6.h"
48 static void do_whois(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[]);
49 static void single_whois(struct Client
*source_p
, struct Client
*target_p
, int operspy
);
51 static int m_whois(struct Client
*, struct Client
*, int, const char **);
52 static int ms_whois(struct Client
*, struct Client
*, int, const char **);
54 struct Message whois_msgtab
= {
55 "WHOIS", 0, 0, 0, MFLG_SLOW
,
56 {mg_unreg
, {m_whois
, 2}, {ms_whois
, 2}, mg_ignore
, mg_ignore
, {m_whois
, 2}}
60 int doing_whois_global_hook
;
62 mapi_clist_av1 whois_clist
[] = { &whois_msgtab
, NULL
};
63 mapi_hlist_av1 whois_hlist
[] = {
64 { "doing_whois", &doing_whois_hook
},
65 { "doing_whois_global", &doing_whois_global_hook
},
69 DECLARE_MODULE_AV1(whois
, NULL
, NULL
, whois_clist
, whois_hlist
, NULL
, "$Revision: 3536 $");
73 * parv[1] = nickname masklist
76 m_whois(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
78 static time_t last_used
= 0;
82 if(EmptyString(parv
[2]))
84 sendto_one(source_p
, form_str(ERR_NONICKNAMEGIVEN
),
85 me
.name
, source_p
->name
);
91 /* seeing as this is going across servers, we should limit it */
92 if((last_used
+ ConfigFileEntry
.pace_wait_simple
) > rb_current_time())
94 sendto_one(source_p
, form_str(RPL_LOAD2HI
),
95 me
.name
, source_p
->name
, "WHOIS");
96 sendto_one_numeric(source_p
, RPL_ENDOFWHOIS
,
97 form_str(RPL_ENDOFWHOIS
), parv
[2]);
101 last_used
= rb_current_time();
104 if(hunt_server(client_p
, source_p
, ":%s WHOIS %s :%s", 1, parc
, parv
) !=
111 do_whois(client_p
, source_p
, parc
, parv
);
118 * parv[1] = server to reply
119 * parv[2] = nickname to whois
122 ms_whois(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
124 struct Client
*target_p
;
126 /* note: early versions of ratbox allowed users to issue a remote
127 * whois with a blank parv[2], so we cannot treat it as a protocol
130 if(parc
< 3 || EmptyString(parv
[2]))
132 sendto_one(source_p
, form_str(ERR_NONICKNAMEGIVEN
),
133 me
.name
, source_p
->name
);
137 /* check if parv[1] exists */
138 if((target_p
= find_client(parv
[1])) == NULL
)
140 sendto_one_numeric(source_p
, ERR_NOSUCHSERVER
,
141 form_str(ERR_NOSUCHSERVER
),
142 IsDigit(parv
[1][0]) ? "*" : parv
[1]);
146 /* if parv[1] isnt my client, or me, someone else is supposed
147 * to be handling the request.. so send it to them
149 if(!MyClient(target_p
) && !IsMe(target_p
))
151 sendto_one(target_p
, ":%s WHOIS %s :%s",
152 get_id(source_p
, target_p
),
153 get_id(target_p
, target_p
), parv
[2]);
157 /* ok, the target is either us, or a client on our server, so perform the whois
158 * but first, parv[1] == server to perform the whois on, parv[2] == person
159 * to whois, so make parv[1] = parv[2] so do_whois is ok -- fl_
162 do_whois(client_p
, source_p
, parc
, parv
);
169 * inputs - pointer to
174 do_whois(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
176 struct Client
*target_p
;
181 nick
= LOCAL_COPY(parv
[1]);
182 if((p
= strchr(nick
, ',')))
185 if(IsOperSpy(source_p
) && *nick
== '!')
191 if(MyClient(source_p
))
192 target_p
= find_named_person(nick
);
194 target_p
= find_person(nick
);
200 char buffer
[BUFSIZE
];
202 rb_snprintf(buffer
, sizeof(buffer
), "%s!%s@%s %s",
203 target_p
->name
, target_p
->username
,
204 target_p
->host
, target_p
->servptr
->name
);
205 report_operspy(source_p
, "WHOIS", buffer
);
208 single_whois(source_p
, target_p
, operspy
);
211 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
212 form_str(ERR_NOSUCHNICK
),
215 sendto_one_numeric(source_p
, RPL_ENDOFWHOIS
,
216 form_str(RPL_ENDOFWHOIS
), parv
[1]);
223 * Inputs - source_p client to report to
224 * - target_p client to report on
225 * Output - if found return 1
226 * Side Effects - do a single whois on given client
227 * writing results to source_p
230 single_whois(struct Client
*source_p
, struct Client
*target_p
, int operspy
)
234 struct membership
*msptr
;
235 struct Channel
*chptr
;
240 hook_data_client hdata
;
244 struct sockaddr_in ip4
;
247 if(target_p
->user
== NULL
)
253 sendto_one_numeric(source_p
, RPL_WHOISUSER
, form_str(RPL_WHOISUSER
),
254 target_p
->name
, target_p
->username
,
255 target_p
->host
, target_p
->info
);
257 cur_len
= mlen
= rb_sprintf(buf
, form_str(RPL_WHOISCHANNELS
),
258 get_id(&me
, source_p
), get_id(source_p
, source_p
),
261 /* Make sure it won't overflow when sending it to the client
262 * in full names; note that serverhiding may require more space
263 * for a different server name (not done here) -- jilles
265 if (!MyConnect(source_p
))
267 extra_space
= strlen(source_p
->name
) - 9;
270 extra_space
+= strlen(me
.name
) - 2; /* make sure >= 0 */
271 cur_len
+= extra_space
;
276 if (!IsService(target_p
))
278 RB_DLINK_FOREACH(ptr
, target_p
->user
->channel
.head
)
281 chptr
= msptr
->chptr
;
283 visible
= ShowChannel(source_p
, chptr
);
285 if(visible
|| operspy
)
287 if((cur_len
+ strlen(chptr
->chname
) + 3) > (BUFSIZE
- 5))
289 sendto_one(source_p
, "%s", buf
);
290 cur_len
= mlen
+ extra_space
;
294 tlen
= rb_sprintf(t
, "%s%s%s ",
296 find_channel_status(msptr
, 1),
304 if(cur_len
> mlen
+ extra_space
)
305 sendto_one(source_p
, "%s", buf
);
307 sendto_one_numeric(source_p
, RPL_WHOISSERVER
, form_str(RPL_WHOISSERVER
),
308 target_p
->name
, target_p
->servptr
->name
,
309 target_p
->servptr
->info
);
311 if(target_p
->user
->away
)
312 sendto_one_numeric(source_p
, RPL_AWAY
, form_str(RPL_AWAY
),
313 target_p
->name
, target_p
->user
->away
);
317 sendto_one_numeric(source_p
, RPL_WHOISOPERATOR
, form_str(RPL_WHOISOPERATOR
),
319 IsService(target_p
) ? ConfigFileEntry
.servicestring
:
320 (IsAdmin(target_p
) ? GlobalSetOptions
.adminstring
:
321 GlobalSetOptions
.operstring
));
324 if(IsSSLClient(target_p
))
325 sendto_one_numeric(source_p
, RPL_WHOISSECURE
, form_str(RPL_WHOISSECURE
),
327 if((source_p
== target_p
|| IsOper(source_p
)) &&
328 target_p
->certfp
!= NULL
)
329 sendto_one_numeric(source_p
, RPL_WHOISCERTFP
,
330 form_str(RPL_WHOISCERTFP
),
331 target_p
->name
, target_p
->certfp
);
333 if(MyClient(target_p
))
335 if (IsDynSpoof(target_p
) && (IsOper(source_p
) || source_p
== target_p
))
337 /* trick here: show a nonoper their own IP if
338 * dynamic spoofed but not if auth{} spoofed
340 ClearDynSpoof(target_p
);
341 sendto_one_numeric(source_p
, RPL_WHOISHOST
,
342 form_str(RPL_WHOISHOST
),
343 target_p
->name
, target_p
->orighost
,
344 show_ip(source_p
, target_p
) ? target_p
->sockhost
: "255.255.255.255");
345 SetDynSpoof(target_p
);
347 else if(ConfigFileEntry
.use_whois_actually
&& show_ip(source_p
, target_p
))
348 sendto_one_numeric(source_p
, RPL_WHOISACTUALLY
,
349 form_str(RPL_WHOISACTUALLY
),
350 target_p
->name
, target_p
->sockhost
);
353 if (target_p
->localClient
->ip
.ss_family
== AF_INET6
&&
354 (show_ip(source_p
, target_p
) ||
355 (source_p
== target_p
&& !IsIPSpoof(target_p
))) &&
356 ipv4_from_ipv6((struct sockaddr_in6
*)&target_p
->localClient
->ip
, &ip4
))
358 rb_inet_ntop_sock((struct sockaddr
*)&ip4
,
360 sendto_one_numeric(source_p
, RPL_WHOISTEXT
,
361 "%s :Underlying IPv4 is %s",
362 target_p
->name
, buf
);
366 sendto_one_numeric(source_p
, RPL_WHOISIDLE
, form_str(RPL_WHOISIDLE
),
368 rb_current_time() - target_p
->localClient
->last
,
369 target_p
->localClient
->firsttime
);
373 if (IsDynSpoof(target_p
) && (IsOper(source_p
) || source_p
== target_p
))
375 ClearDynSpoof(target_p
);
376 sendto_one_numeric(source_p
, RPL_WHOISHOST
,
377 form_str(RPL_WHOISHOST
),
378 target_p
->name
, target_p
->orighost
,
379 show_ip(source_p
, target_p
) && !EmptyString(target_p
->sockhost
) && strcmp(target_p
->sockhost
, "0")? target_p
->sockhost
: "255.255.255.255");
380 SetDynSpoof(target_p
);
382 else if(ConfigFileEntry
.use_whois_actually
&& show_ip(source_p
, target_p
) &&
383 !EmptyString(target_p
->sockhost
) && strcmp(target_p
->sockhost
, "0"))
385 sendto_one_numeric(source_p
, RPL_WHOISACTUALLY
,
386 form_str(RPL_WHOISACTUALLY
),
387 target_p
->name
, target_p
->sockhost
);
392 hdata
.client
= source_p
;
393 hdata
.target
= target_p
;
395 /* doing_whois_hook must only be called for local clients,
396 * doing_whois_global_hook must only be called for local targets
398 /* it is important that these are called *before* RPL_ENDOFWHOIS is
399 * sent, services compatibility code depends on it. --anfl
401 if(MyClient(source_p
))
402 call_hook(doing_whois_hook
, &hdata
);
404 call_hook(doing_whois_global_hook
, &hdata
);