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"
47 #include "ratelimit.h"
49 static void do_whois(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[]);
50 static void single_whois(struct Client
*source_p
, struct Client
*target_p
, int operspy
);
52 static int m_whois(struct Client
*, struct Client
*, int, const char **);
53 static int ms_whois(struct Client
*, struct Client
*, int, const char **);
55 struct Message whois_msgtab
= {
56 "WHOIS", 0, 0, 0, MFLG_SLOW
,
57 {mg_unreg
, {m_whois
, 2}, {ms_whois
, 2}, mg_ignore
, mg_ignore
, {m_whois
, 2}}
61 int doing_whois_global_hook
;
63 mapi_clist_av1 whois_clist
[] = { &whois_msgtab
, NULL
};
64 mapi_hlist_av1 whois_hlist
[] = {
65 { "doing_whois", &doing_whois_hook
},
66 { "doing_whois_global", &doing_whois_global_hook
},
70 DECLARE_MODULE_AV1(whois
, NULL
, NULL
, whois_clist
, whois_hlist
, NULL
, "$Revision: 3536 $");
74 * parv[1] = nickname masklist
77 m_whois(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
79 static time_t last_used
= 0;
83 if(EmptyString(parv
[2]))
85 sendto_one(source_p
, form_str(ERR_NONICKNAMEGIVEN
),
86 me
.name
, source_p
->name
);
92 /* seeing as this is going across servers, we should limit it */
93 if((last_used
+ ConfigFileEntry
.pace_wait_simple
) > rb_current_time() || !ratelimit_client(source_p
, 2))
95 sendto_one(source_p
, form_str(RPL_LOAD2HI
),
96 me
.name
, source_p
->name
, "WHOIS");
97 sendto_one_numeric(source_p
, RPL_ENDOFWHOIS
,
98 form_str(RPL_ENDOFWHOIS
), parv
[2]);
102 last_used
= rb_current_time();
105 if(hunt_server(client_p
, source_p
, ":%s WHOIS %s :%s", 1, parc
, parv
) !=
112 do_whois(client_p
, source_p
, parc
, parv
);
119 * parv[1] = server to reply
120 * parv[2] = nickname to whois
123 ms_whois(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
125 struct Client
*target_p
;
127 /* note: early versions of ratbox allowed users to issue a remote
128 * whois with a blank parv[2], so we cannot treat it as a protocol
131 if(parc
< 3 || EmptyString(parv
[2]))
133 sendto_one(source_p
, form_str(ERR_NONICKNAMEGIVEN
),
134 me
.name
, source_p
->name
);
138 /* check if parv[1] exists */
139 if((target_p
= find_client(parv
[1])) == NULL
)
141 sendto_one_numeric(source_p
, ERR_NOSUCHSERVER
,
142 form_str(ERR_NOSUCHSERVER
),
143 IsDigit(parv
[1][0]) ? "*" : parv
[1]);
147 /* if parv[1] isnt my client, or me, someone else is supposed
148 * to be handling the request.. so send it to them
150 if(!MyClient(target_p
) && !IsMe(target_p
))
152 sendto_one(target_p
, ":%s WHOIS %s :%s",
153 get_id(source_p
, target_p
),
154 get_id(target_p
, target_p
), parv
[2]);
158 /* ok, the target is either us, or a client on our server, so perform the whois
159 * but first, parv[1] == server to perform the whois on, parv[2] == person
160 * to whois, so make parv[1] = parv[2] so do_whois is ok -- fl_
163 do_whois(client_p
, source_p
, parc
, parv
);
170 * inputs - pointer to
175 do_whois(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
177 struct Client
*target_p
;
182 nick
= LOCAL_COPY(parv
[1]);
183 if((p
= strchr(nick
, ',')))
186 if(IsOperSpy(source_p
) && *nick
== '!')
192 target_p
= find_named_person(nick
);
197 char buffer
[BUFSIZE
];
199 rb_snprintf(buffer
, sizeof(buffer
), "%s!%s@%s %s",
200 target_p
->name
, target_p
->username
,
201 target_p
->host
, target_p
->servptr
->name
);
202 report_operspy(source_p
, "WHOIS", buffer
);
205 single_whois(source_p
, target_p
, operspy
);
208 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
209 form_str(ERR_NOSUCHNICK
),
212 sendto_one_numeric(source_p
, RPL_ENDOFWHOIS
,
213 form_str(RPL_ENDOFWHOIS
), parv
[1]);
220 * Inputs - source_p client to report to
221 * - target_p client to report on
222 * Output - if found return 1
223 * Side Effects - do a single whois on given client
224 * writing results to source_p
227 single_whois(struct Client
*source_p
, struct Client
*target_p
, int operspy
)
231 struct membership
*msptr
;
232 struct Channel
*chptr
;
237 hook_data_client hdata
;
241 struct sockaddr_in ip4
;
244 if(target_p
->user
== NULL
)
250 sendto_one_numeric(source_p
, RPL_WHOISUSER
, form_str(RPL_WHOISUSER
),
251 target_p
->name
, target_p
->username
,
252 target_p
->host
, target_p
->info
);
254 cur_len
= mlen
= rb_sprintf(buf
, form_str(RPL_WHOISCHANNELS
),
255 get_id(&me
, source_p
), get_id(source_p
, source_p
),
258 /* Make sure it won't overflow when sending it to the client
259 * in full names; note that serverhiding may require more space
260 * for a different server name (not done here) -- jilles
262 if (!MyConnect(source_p
))
264 extra_space
= strlen(source_p
->name
) - 9;
267 extra_space
+= strlen(me
.name
) - 2; /* make sure >= 0 */
268 cur_len
+= extra_space
;
273 if (!IsService(target_p
))
275 RB_DLINK_FOREACH(ptr
, target_p
->user
->channel
.head
)
278 chptr
= msptr
->chptr
;
280 visible
= ShowChannel(source_p
, chptr
);
282 if(visible
|| operspy
)
284 if((cur_len
+ strlen(chptr
->chname
) + 3) > (BUFSIZE
- 5))
286 sendto_one(source_p
, "%s", buf
);
287 cur_len
= mlen
+ extra_space
;
291 tlen
= rb_sprintf(t
, "%s%s%s ",
293 find_channel_status(msptr
, 1),
301 if(cur_len
> mlen
+ extra_space
)
302 sendto_one(source_p
, "%s", buf
);
304 sendto_one_numeric(source_p
, RPL_WHOISSERVER
, form_str(RPL_WHOISSERVER
),
305 target_p
->name
, target_p
->servptr
->name
,
306 target_p
->servptr
->info
);
308 if(target_p
->user
->away
)
309 sendto_one_numeric(source_p
, RPL_AWAY
, form_str(RPL_AWAY
),
310 target_p
->name
, target_p
->user
->away
);
314 sendto_one_numeric(source_p
, RPL_WHOISOPERATOR
, form_str(RPL_WHOISOPERATOR
),
316 IsService(target_p
) ? ConfigFileEntry
.servicestring
:
317 (IsAdmin(target_p
) ? GlobalSetOptions
.adminstring
:
318 GlobalSetOptions
.operstring
));
321 if(IsSSLClient(target_p
))
322 sendto_one_numeric(source_p
, RPL_WHOISSECURE
, form_str(RPL_WHOISSECURE
),
324 if((source_p
== target_p
|| IsOper(source_p
)) &&
325 target_p
->certfp
!= NULL
)
326 sendto_one_numeric(source_p
, RPL_WHOISCERTFP
,
327 form_str(RPL_WHOISCERTFP
),
328 target_p
->name
, target_p
->certfp
);
330 if(MyClient(target_p
))
332 if (IsDynSpoof(target_p
) && (IsOper(source_p
) || source_p
== target_p
))
334 /* trick here: show a nonoper their own IP if
335 * dynamic spoofed but not if auth{} spoofed
337 ClearDynSpoof(target_p
);
338 sendto_one_numeric(source_p
, RPL_WHOISHOST
,
339 form_str(RPL_WHOISHOST
),
340 target_p
->name
, target_p
->orighost
,
341 show_ip(source_p
, target_p
) ? target_p
->sockhost
: "255.255.255.255");
342 SetDynSpoof(target_p
);
344 else if(ConfigFileEntry
.use_whois_actually
&& show_ip(source_p
, target_p
))
345 sendto_one_numeric(source_p
, RPL_WHOISACTUALLY
,
346 form_str(RPL_WHOISACTUALLY
),
347 target_p
->name
, target_p
->sockhost
);
350 if (target_p
->localClient
->ip
.ss_family
== AF_INET6
&&
351 (show_ip(source_p
, target_p
) ||
352 (source_p
== target_p
&& !IsIPSpoof(target_p
))) &&
353 ipv4_from_ipv6((struct sockaddr_in6
*)&target_p
->localClient
->ip
, &ip4
))
355 rb_inet_ntop_sock((struct sockaddr
*)&ip4
,
357 sendto_one_numeric(source_p
, RPL_WHOISTEXT
,
358 "%s :Underlying IPv4 is %s",
359 target_p
->name
, buf
);
363 sendto_one_numeric(source_p
, RPL_WHOISIDLE
, form_str(RPL_WHOISIDLE
),
365 rb_current_time() - target_p
->localClient
->last
,
366 target_p
->localClient
->firsttime
);
370 if (IsDynSpoof(target_p
) && (IsOper(source_p
) || source_p
== target_p
))
372 ClearDynSpoof(target_p
);
373 sendto_one_numeric(source_p
, RPL_WHOISHOST
,
374 form_str(RPL_WHOISHOST
),
375 target_p
->name
, target_p
->orighost
,
376 show_ip(source_p
, target_p
) && !EmptyString(target_p
->sockhost
) && strcmp(target_p
->sockhost
, "0")? target_p
->sockhost
: "255.255.255.255");
377 SetDynSpoof(target_p
);
379 else if(ConfigFileEntry
.use_whois_actually
&& show_ip(source_p
, target_p
) &&
380 !EmptyString(target_p
->sockhost
) && strcmp(target_p
->sockhost
, "0"))
382 sendto_one_numeric(source_p
, RPL_WHOISACTUALLY
,
383 form_str(RPL_WHOISACTUALLY
),
384 target_p
->name
, target_p
->sockhost
);
389 hdata
.client
= source_p
;
390 hdata
.target
= target_p
;
392 /* doing_whois_hook must only be called for local clients,
393 * doing_whois_global_hook must only be called for local targets
395 /* it is important that these are called *before* RPL_ENDOFWHOIS is
396 * sent, services compatibility code depends on it. --anfl
398 if(MyClient(source_p
))
399 call_hook(doing_whois_hook
, &hdata
);
401 call_hook(doing_whois_global_hook
, &hdata
);