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
42 #include "s_newconf.h"
43 #include "ipv4_from_ipv6.h"
44 #include "ratelimit.h"
47 static const char whois_desc
[] =
48 "Provides the WHOIS command to display information about a user";
50 static void do_whois(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[]);
51 static void single_whois(struct Client
*source_p
, struct Client
*target_p
, int operspy
);
53 static void m_whois(struct MsgBuf
*, struct Client
*, struct Client
*, int, const char **);
54 static void ms_whois(struct MsgBuf
*, struct Client
*, struct Client
*, int, const char **);
56 struct Message whois_msgtab
= {
58 {mg_unreg
, {m_whois
, 2}, {ms_whois
, 2}, mg_ignore
, mg_ignore
, {m_whois
, 2}}
62 int doing_whois_global_hook
;
63 int doing_whois_channel_visibility_hook
;
65 mapi_clist_av1 whois_clist
[] = { &whois_msgtab
, NULL
};
66 mapi_hlist_av1 whois_hlist
[] = {
67 { "doing_whois", &doing_whois_hook
},
68 { "doing_whois_global", &doing_whois_global_hook
},
69 { "doing_whois_channel_visibility", &doing_whois_channel_visibility_hook
},
73 DECLARE_MODULE_AV2(whois
, NULL
, NULL
, whois_clist
, whois_hlist
, NULL
, NULL
, NULL
, whois_desc
);
77 * parv[1] = nickname masklist
80 m_whois(struct MsgBuf
*msgbuf_p
, struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
82 static time_t last_used
= 0;
86 if(EmptyString(parv
[2]))
88 sendto_one(source_p
, form_str(ERR_NONICKNAMEGIVEN
),
89 me
.name
, source_p
->name
);
95 /* seeing as this is going across servers, we should limit it */
96 if((last_used
+ ConfigFileEntry
.pace_wait_simple
) > rb_current_time() || !ratelimit_client(source_p
, 2))
98 sendto_one(source_p
, form_str(RPL_LOAD2HI
),
99 me
.name
, source_p
->name
, "WHOIS");
100 sendto_one_numeric(source_p
, RPL_ENDOFWHOIS
,
101 form_str(RPL_ENDOFWHOIS
), parv
[2]);
105 last_used
= rb_current_time();
108 if(hunt_server(client_p
, source_p
, ":%s WHOIS %s :%s", 1, parc
, parv
) !=
115 do_whois(client_p
, source_p
, parc
, parv
);
120 * parv[1] = server to reply
121 * parv[2] = nickname to whois
124 ms_whois(struct MsgBuf
*msgbuf_p
, struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
126 struct Client
*target_p
;
128 /* note: early versions of ratbox allowed users to issue a remote
129 * whois with a blank parv[2], so we cannot treat it as a protocol
132 if(parc
< 3 || EmptyString(parv
[2]))
134 sendto_one(source_p
, form_str(ERR_NONICKNAMEGIVEN
),
135 me
.name
, source_p
->name
);
139 /* check if parv[1] exists */
140 if((target_p
= find_client(parv
[1])) == NULL
)
142 sendto_one_numeric(source_p
, ERR_NOSUCHSERVER
,
143 form_str(ERR_NOSUCHSERVER
),
144 IsDigit(parv
[1][0]) ? "*" : parv
[1]);
148 /* if parv[1] isnt my client, or me, someone else is supposed
149 * to be handling the request.. so send it to them
151 if(!MyClient(target_p
) && !IsMe(target_p
))
153 sendto_one(target_p
, ":%s WHOIS %s :%s",
154 get_id(source_p
, target_p
),
155 get_id(target_p
, target_p
), parv
[2]);
159 /* ok, the target is either us, or a client on our server, so perform the whois
160 * but first, parv[1] == server to perform the whois on, parv[2] == person
161 * to whois, so make parv[1] = parv[2] so do_whois is ok -- fl_
164 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 target_p
= find_named_person(nick
);
196 char buffer
[BUFSIZE
];
198 snprintf(buffer
, sizeof(buffer
), "%s!%s@%s %s",
199 target_p
->name
, target_p
->username
,
200 target_p
->host
, target_p
->servptr
->name
);
201 report_operspy(source_p
, "WHOIS", buffer
);
204 single_whois(source_p
, target_p
, operspy
);
207 sendto_one_numeric(source_p
, ERR_NOSUCHNICK
,
208 form_str(ERR_NOSUCHNICK
),
211 sendto_one_numeric(source_p
, RPL_ENDOFWHOIS
,
212 form_str(RPL_ENDOFWHOIS
), parv
[1]);
218 * Inputs - source_p client to report to
219 * - target_p client to report on
220 * Output - if found return 1
221 * Side Effects - do a single whois on given client
222 * writing results to source_p
225 single_whois(struct Client
*source_p
, struct Client
*target_p
, int operspy
)
229 struct membership
*msptr
;
230 struct Channel
*chptr
;
235 hook_data_client hdata
;
238 struct sockaddr_in ip4
;
241 if(target_p
->user
== NULL
)
247 sendto_one_numeric(source_p
, RPL_WHOISUSER
, form_str(RPL_WHOISUSER
),
248 target_p
->name
, target_p
->username
,
249 target_p
->host
, target_p
->info
);
251 cur_len
= mlen
= sprintf(buf
, form_str(RPL_WHOISCHANNELS
),
252 get_id(&me
, source_p
), get_id(source_p
, source_p
),
255 /* Make sure it won't overflow when sending it to the client
256 * in full names; note that serverhiding may require more space
257 * for a different server name (not done here) -- jilles
259 if (!MyConnect(source_p
))
261 extra_space
= strlen(source_p
->name
) - 9;
264 extra_space
+= strlen(me
.name
) - 2; /* make sure >= 0 */
265 cur_len
+= extra_space
;
270 hdata
.client
= source_p
;
271 hdata
.target
= target_p
;
273 if (!IsService(target_p
))
275 RB_DLINK_FOREACH(ptr
, target_p
->user
->channel
.head
)
278 chptr
= msptr
->chptr
;
282 hdata
.approved
= ShowChannel(source_p
, chptr
);
283 call_hook(doing_whois_channel_visibility_hook
, &hdata
);
285 if(hdata
.approved
|| 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
= sprintf(t
, "%s%s%s ",
295 hdata
.approved
? "" : "!",
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
);
315 if(IsOper(target_p
) && (!ConfigFileEntry
.hide_opers_in_whois
|| IsOper(source_p
)))
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(MyClient(target_p
) && !EmptyString(target_p
->localClient
->opername
) && IsOper(source_p
))
327 snprintf(buf
, sizeof(buf
), "is opered as %s, privset %s",
328 target_p
->localClient
->opername
, target_p
->localClient
->privset
->name
);
329 sendto_one_numeric(source_p
, RPL_WHOISSPECIAL
, form_str(RPL_WHOISSPECIAL
),
330 target_p
->name
, buf
);
333 if(IsSSLClient(target_p
))
335 char cbuf
[256] = "is using a secure connection";
337 if (MyClient(target_p
) && target_p
->localClient
->cipher_string
!= NULL
)
338 rb_snprintf_append(cbuf
, sizeof(cbuf
), " [%s]", target_p
->localClient
->cipher_string
);
340 sendto_one_numeric(source_p
, RPL_WHOISSECURE
, form_str(RPL_WHOISSECURE
),
341 target_p
->name
, cbuf
);
342 if((source_p
== target_p
|| IsOper(source_p
)) &&
343 target_p
->certfp
!= NULL
)
344 sendto_one_numeric(source_p
, RPL_WHOISCERTFP
,
345 form_str(RPL_WHOISCERTFP
),
346 target_p
->name
, target_p
->certfp
);
349 if(MyClient(target_p
))
351 if (IsDynSpoof(target_p
) && (IsOper(source_p
) || source_p
== target_p
))
353 /* trick here: show a nonoper their own IP if
354 * dynamic spoofed but not if auth{} spoofed
356 ClearDynSpoof(target_p
);
357 sendto_one_numeric(source_p
, RPL_WHOISHOST
,
358 form_str(RPL_WHOISHOST
),
359 target_p
->name
, target_p
->orighost
,
360 show_ip(source_p
, target_p
) ? target_p
->sockhost
: "255.255.255.255");
361 SetDynSpoof(target_p
);
363 else if(ConfigFileEntry
.use_whois_actually
&& show_ip(source_p
, target_p
))
364 sendto_one_numeric(source_p
, RPL_WHOISACTUALLY
,
365 form_str(RPL_WHOISACTUALLY
),
366 target_p
->name
, target_p
->sockhost
);
369 if (GET_SS_FAMILY(&target_p
->localClient
->ip
) == AF_INET6
&&
370 (show_ip(source_p
, target_p
) ||
371 (source_p
== target_p
&& !IsIPSpoof(target_p
))) &&
372 ipv4_from_ipv6((struct sockaddr_in6
*)&target_p
->localClient
->ip
, &ip4
))
374 rb_inet_ntop_sock((struct sockaddr
*)&ip4
,
376 sendto_one_numeric(source_p
, RPL_WHOISTEXT
,
377 "%s :Underlying IPv4 is %s",
378 target_p
->name
, buf
);
382 sendto_one_numeric(source_p
, RPL_WHOISIDLE
, form_str(RPL_WHOISIDLE
),
384 (long)(rb_current_time() - target_p
->localClient
->last
),
385 (unsigned long)target_p
->localClient
->firsttime
);
389 if (IsDynSpoof(target_p
) && (IsOper(source_p
) || source_p
== target_p
))
391 ClearDynSpoof(target_p
);
392 sendto_one_numeric(source_p
, RPL_WHOISHOST
,
393 form_str(RPL_WHOISHOST
),
394 target_p
->name
, target_p
->orighost
,
395 show_ip(source_p
, target_p
) && !EmptyString(target_p
->sockhost
) && strcmp(target_p
->sockhost
, "0")? target_p
->sockhost
: "255.255.255.255");
396 SetDynSpoof(target_p
);
398 else if(ConfigFileEntry
.use_whois_actually
&& show_ip(source_p
, target_p
) &&
399 !EmptyString(target_p
->sockhost
) && strcmp(target_p
->sockhost
, "0"))
401 sendto_one_numeric(source_p
, RPL_WHOISACTUALLY
,
402 form_str(RPL_WHOISACTUALLY
),
403 target_p
->name
, target_p
->sockhost
);
408 /* doing_whois_hook must only be called for local clients,
409 * doing_whois_global_hook must only be called for local targets
411 /* it is important that these are called *before* RPL_ENDOFWHOIS is
412 * sent, services compatibility code depends on it. --anfl
414 if(MyClient(source_p
))
415 call_hook(doing_whois_hook
, &hdata
);
417 call_hook(doing_whois_global_hook
, &hdata
);