2 * ircd-ratbox: A slightly useful ircd.
3 * s_user.c: User related functions.
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: s_user.c 196 2006-12-19 01:20:05Z beu $
35 #include "irc_string.h"
36 #include "sprintf_irc.h"
43 #include "s_newconf.h"
49 #include "supported.h"
58 #include "blacklist.h"
60 static void report_and_set_user_flags(struct Client
*, struct ConfItem
*);
61 void user_welcome(struct Client
*source_p
);
67 int user_modes
[256] = {
68 /* 0x00 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x0F */
69 /* 0x10 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x1F */
70 /* 0x20 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x2F */
71 /* 0x30 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x3F */
89 UMODE_NOFORWARD
, /* Q */
90 UMODE_REGONLYMSG
, /* R */
91 UMODE_SERVICE
, /* S */
99 /* 0x5B */ 0, 0, 0, 0, 0, 0, /* 0x60 */
106 UMODE_CALLERID
, /* g */
108 UMODE_INVISIBLE
, /* i */
115 UMODE_OVERRIDE
, /* p */
118 UMODE_SERVNOTICE
, /* s */
122 UMODE_WALLOP
, /* w */
125 UMODE_OPERWALL
, /* z */
126 /* 0x7B */ 0, 0, 0, 0, 0, /* 0x7F */
127 /* 0x80 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x9F */
128 /* 0x90 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0x9F */
129 /* 0xA0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xAF */
130 /* 0xB0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xBF */
131 /* 0xC0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xCF */
132 /* 0xD0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xDF */
133 /* 0xE0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, /* 0xEF */
134 /* 0xF0 */ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0 /* 0xFF */
141 * inputs - pointer to client
143 * side effects - display to client user counts etc.
146 show_lusers(struct Client
*source_p
)
148 sendto_one_numeric(source_p
, RPL_LUSERCLIENT
, form_str(RPL_LUSERCLIENT
),
149 (Count
.total
- Count
.invisi
),
150 Count
.invisi
, dlink_list_length(&global_serv_list
));
152 if(dlink_list_length(&oper_list
) > 0)
153 sendto_one_numeric(source_p
, RPL_LUSEROP
,
154 form_str(RPL_LUSEROP
), dlink_list_length(&oper_list
));
156 if(dlink_list_length(&unknown_list
) > 0)
157 sendto_one_numeric(source_p
, RPL_LUSERUNKNOWN
,
158 form_str(RPL_LUSERUNKNOWN
),
159 dlink_list_length(&unknown_list
));
161 if(dlink_list_length(&global_channel_list
) > 0)
162 sendto_one_numeric(source_p
, RPL_LUSERCHANNELS
,
163 form_str(RPL_LUSERCHANNELS
),
164 dlink_list_length(&global_channel_list
));
166 sendto_one_numeric(source_p
, RPL_LUSERME
, form_str(RPL_LUSERME
),
167 dlink_list_length(&lclient_list
),
168 dlink_list_length(&serv_list
));
170 sendto_one_numeric(source_p
, RPL_LOCALUSERS
,
171 form_str(RPL_LOCALUSERS
),
172 dlink_list_length(&lclient_list
),
174 dlink_list_length(&lclient_list
),
177 sendto_one_numeric(source_p
, RPL_GLOBALUSERS
, form_str(RPL_GLOBALUSERS
),
178 Count
.total
, Count
.max_tot
,
179 Count
.total
, Count
.max_tot
);
181 sendto_one_numeric(source_p
, RPL_STATSCONN
,
182 form_str(RPL_STATSCONN
),
183 MaxConnectionCount
, MaxClientCount
,
184 Count
.totalrestartcount
);
186 if(dlink_list_length(&lclient_list
) > (unsigned long)MaxClientCount
)
187 MaxClientCount
= dlink_list_length(&lclient_list
);
189 if((dlink_list_length(&lclient_list
) + dlink_list_length(&serv_list
)) >
190 (unsigned long)MaxConnectionCount
)
191 MaxConnectionCount
= dlink_list_length(&lclient_list
) +
192 dlink_list_length(&serv_list
);
198 ** register_local_user
199 ** This function is called when both NICK and USER messages
200 ** have been accepted for the client, in whatever order. Only
201 ** after this, is the USER message propagated.
203 ** NICK's must be propagated at once when received, although
204 ** it would be better to delay them too until full info is
205 ** available. Doing it is not so simple though, would have
206 ** to implement the following:
208 ** (actually it has been implemented already for a while) -orabidoo
210 ** 1) user telnets in and gives only "NICK foobar" and waits
211 ** 2) another user far away logs in normally with the nick
212 ** "foobar" (quite legal, as this server didn't propagate
214 ** 3) now this server gets nick "foobar" from outside, but
215 ** has alread the same defined locally. Current server
216 ** would just issue "KILL foobar" to clean out dups. But,
217 ** this is not fair. It should actually request another
218 ** nick from local user or kill him/her...
222 register_local_user(struct Client
*client_p
, struct Client
*source_p
, const char *username
)
224 struct ConfItem
*aconf
;
225 struct User
*user
= source_p
->user
;
226 char tmpstr2
[IRCD_BUFSIZE
];
227 char ipaddr
[HOSTIPLEN
];
228 char myusername
[USERLEN
+1];
231 s_assert(NULL
!= source_p
);
232 s_assert(MyConnect(source_p
));
233 s_assert(source_p
->username
!= username
);
238 if(IsAnyDead(source_p
))
241 if(ConfigFileEntry
.ping_cookie
)
243 if(!(source_p
->flags
& FLAGS_PINGSENT
) && source_p
->localClient
->random_ping
== 0)
245 source_p
->localClient
->random_ping
= (unsigned long) (rand() * rand()) << 1;
246 sendto_one(source_p
, "PING :%08lX",
247 (unsigned long) source_p
->localClient
->random_ping
);
248 source_p
->flags
|= FLAGS_PINGSENT
;
251 if(!(source_p
->flags2
& FLAGS2_PING_COOKIE
))
257 /* hasnt finished client cap negotiation */
258 if(source_p
->flags2
& FLAGS2_CLICAP
)
261 /* still has DNSbls to validate against */
262 if(dlink_list_length(&source_p
->preClient
->dnsbl_queries
) > 0)
265 client_p
->localClient
->last
= CurrentTime
;
266 /* Straight up the maximum rate of flooding... */
267 source_p
->localClient
->allow_read
= MAX_FLOOD_BURST
;
269 /* XXX - fixme. we shouldnt have to build a users buffer twice.. */
270 if(!IsGotId(source_p
) && (strchr(username
, '[') != NULL
))
277 while(*p
&& i
< USERLEN
)
280 myusername
[i
++] = *p
;
284 myusername
[i
] = '\0';
285 username
= myusername
;
288 if((status
= check_client(client_p
, source_p
, username
)) < 0)
289 return (CLIENT_EXITED
);
291 /* Apply nick override */
292 if(*source_p
->preClient
->spoofnick
)
294 del_from_client_hash(source_p
->name
, source_p
);
295 strlcpy(source_p
->name
, source_p
->preClient
->spoofnick
, NICKLEN
+ 1);
296 add_to_client_hash(source_p
->name
, source_p
);
297 comm_note(source_p
->localClient
->fd
, "Nick: %s", source_p
->name
);
300 if(!valid_hostname(source_p
->host
))
303 ":%s NOTICE %s :*** Notice -- You have an illegal character in your hostname",
304 me
.name
, source_p
->name
);
306 strlcpy(source_p
->host
, source_p
->sockhost
, sizeof(source_p
->host
));
309 if(ConfigFileEntry
.dot_in_ip6_addr
== 1)
310 strlcat(source_p
->host
, ".", sizeof(source_p
->host
));
315 aconf
= source_p
->localClient
->att_conf
;
319 exit_client(client_p
, source_p
, &me
, "*** Not Authorised");
320 return (CLIENT_EXITED
);
323 if(!IsGotId(source_p
))
328 if(IsNeedIdentd(aconf
))
330 ServerStats
->is_ref
++;
332 ":%s NOTICE %s :*** Notice -- You need to install identd to use this server",
333 me
.name
, client_p
->name
);
334 exit_client(client_p
, source_p
, &me
, "Install identd");
335 return (CLIENT_EXITED
);
338 /* dont replace username if its supposed to be spoofed --fl */
339 if(!IsConfDoSpoofIp(aconf
) || !strchr(aconf
->name
, '@'))
343 if(!IsNoTilde(aconf
))
344 source_p
->username
[i
++] = '~';
346 while (*p
&& i
< USERLEN
)
349 source_p
->username
[i
++] = *p
;
353 source_p
->username
[i
] = '\0';
357 if(IsNeedSasl(aconf
) && !*user
->suser
)
359 ServerStats
->is_ref
++;
361 ":%s NOTICE %s :*** Notice -- You need to identify via SASL to use this server",
362 me
.name
, client_p
->name
);
363 exit_client(client_p
, source_p
, &me
, "SASL access only");
364 return (CLIENT_EXITED
);
368 if(!EmptyString(aconf
->passwd
))
372 if(EmptyString(source_p
->localClient
->passwd
))
374 else if(IsConfEncrypted(aconf
))
375 encr
= crypt(source_p
->localClient
->passwd
, aconf
->passwd
);
377 encr
= source_p
->localClient
->passwd
;
379 if(strcmp(encr
, aconf
->passwd
))
381 ServerStats
->is_ref
++;
382 sendto_one(source_p
, form_str(ERR_PASSWDMISMATCH
), me
.name
, source_p
->name
);
383 exit_client(client_p
, source_p
, &me
, "Bad Password");
384 return (CLIENT_EXITED
);
387 /* clear password only if used now, otherwise send it
388 * to services -- jilles */
389 if(source_p
->localClient
->passwd
)
391 memset(source_p
->localClient
->passwd
, 0, strlen(source_p
->localClient
->passwd
));
392 MyFree(source_p
->localClient
->passwd
);
393 source_p
->localClient
->passwd
= NULL
;
397 /* report if user has &^>= etc. and set flags as needed in source_p */
398 report_and_set_user_flags(source_p
, aconf
);
402 * We want to be able to have servers and F-line clients
403 * connect, so save room for "buffer" connections.
404 * Smaller servers may want to decrease this, and it should
405 * probably be just a percentage of the MAXCLIENTS...
408 /* Except "F:" clients */
409 if(((dlink_list_length(&lclient_list
) + 1) >=
410 ((unsigned long)GlobalSetOptions
.maxclients
+ MAX_BUFFER
) ||
411 (dlink_list_length(&lclient_list
) + 1) >=
412 ((unsigned long)GlobalSetOptions
.maxclients
- 5)) && !(IsExemptLimits(source_p
)))
414 sendto_realops_snomask(SNO_FULL
, L_NETWIDE
,
415 "Too many clients, rejecting %s[%s].", source_p
->name
, source_p
->host
);
417 ServerStats
->is_ref
++;
418 exit_client(client_p
, source_p
, &me
, "Sorry, server is full - try later");
419 return (CLIENT_EXITED
);
422 /* valid user name check */
424 if(!valid_username(source_p
->username
))
426 sendto_realops_snomask(SNO_REJ
, L_NETWIDE
,
427 "Invalid username: %s (%s@%s)",
428 source_p
->name
, source_p
->username
, source_p
->host
);
429 ServerStats
->is_ref
++;
430 ircsprintf(tmpstr2
, "Invalid username [%s]", source_p
->username
);
431 exit_client(client_p
, source_p
, &me
, tmpstr2
);
432 return (CLIENT_EXITED
);
435 /* end of valid user name check */
437 /* kline exemption extends to xline too */
438 if(!IsExemptKline(source_p
) &&
439 find_xline(source_p
->info
, 1) != NULL
)
441 ServerStats
->is_ref
++;
442 add_reject(source_p
);
443 exit_client(client_p
, source_p
, &me
, "Bad user info");
444 return CLIENT_EXITED
;
448 if (source_p
->preClient
->dnsbl_listed
!= NULL
)
450 if (IsExemptKline(source_p
) || IsConfExemptDNSBL(aconf
))
451 sendto_one_notice(source_p
, ":*** Your IP address %s is listed in %s, but you are exempt",
452 source_p
->sockhost
, source_p
->preClient
->dnsbl_listed
->host
);
455 ServerStats
->is_ref
++;
456 sendto_one(source_p
, form_str(ERR_YOUREBANNEDCREEP
),
457 me
.name
, source_p
->name
,
458 source_p
->preClient
->dnsbl_listed
->reject_reason
);
459 sendto_one_notice(source_p
, ":*** Your IP address %s is listed in %s",
460 source_p
->sockhost
, source_p
->preClient
->dnsbl_listed
->host
);
461 source_p
->preClient
->dnsbl_listed
->hits
++;
462 add_reject(source_p
);
463 exit_client(client_p
, source_p
, &me
, "*** Banned (DNS blacklist)");
464 return CLIENT_EXITED
;
468 /* Store original hostname -- jilles */
469 strlcpy(source_p
->orighost
, source_p
->host
, HOSTLEN
+ 1);
471 /* Spoof user@host */
472 if(*source_p
->preClient
->spoofuser
)
473 strlcpy(source_p
->username
, source_p
->preClient
->spoofuser
, USERLEN
+ 1);
474 if(*source_p
->preClient
->spoofhost
)
476 strlcpy(source_p
->host
, source_p
->preClient
->spoofhost
, HOSTLEN
+ 1);
477 if (irccmp(source_p
->host
, source_p
->orighost
))
478 SetDynSpoof(source_p
);
481 if(IsAnyDead(client_p
))
482 return CLIENT_EXITED
;
484 inetntop_sock((struct sockaddr
*)&source_p
->localClient
->ip
, ipaddr
, sizeof(ipaddr
));
486 sendto_realops_snomask(SNO_CCONN
, L_ALL
,
487 "Client connecting: %s (%s@%s) [%s] {%s} [%s]",
488 source_p
->name
, source_p
->username
, source_p
->orighost
,
489 show_ip(NULL
, source_p
) ? ipaddr
: "255.255.255.255",
490 get_client_class(source_p
), source_p
->info
);
492 sendto_realops_snomask(SNO_CCONNEXT
, L_ALL
,
493 "CLICONN %s %s %s %s %s %s 0 %s",
494 source_p
->name
, source_p
->username
, source_p
->orighost
,
495 show_ip(NULL
, source_p
) ? ipaddr
: "255.255.255.255",
496 get_client_class(source_p
),
497 /* mirc can sometimes send ips here */
498 show_ip(NULL
, source_p
) ? source_p
->localClient
->fullcaps
: "<hidden> <hidden>",
501 /* If they have died in send_* don't do anything. */
502 if(IsAnyDead(source_p
))
503 return CLIENT_EXITED
;
505 add_to_hostname_hash(source_p
->orighost
, source_p
);
507 /* Allocate a UID if it was not previously allocated.
508 * If this already occured, it was probably during SASL auth...
512 strcpy(source_p
->id
, generate_uid());
513 add_to_id_hash(source_p
->id
, source_p
);
516 source_p
->umodes
|= ConfigFileEntry
.default_umodes
& ~ConfigFileEntry
.oper_only_umodes
;
518 if (source_p
->umodes
& UMODE_INVISIBLE
)
521 s_assert(!IsClient(source_p
));
522 dlinkMoveNode(&source_p
->localClient
->tnode
, &unknown_list
, &lclient_list
);
525 /* XXX source_p->servptr is &me, since local client */
526 source_p
->servptr
= find_server(NULL
, user
->server
);
527 dlinkAdd(source_p
, &source_p
->lnode
, &source_p
->servptr
->serv
->users
);
528 /* Increment our total user count here */
529 if(++Count
.total
> Count
.max_tot
)
530 Count
.max_tot
= Count
.total
;
531 source_p
->localClient
->allow_read
= MAX_FLOOD_BURST
;
533 Count
.totalrestartcount
++;
535 s_assert(source_p
->localClient
!= NULL
);
537 if(dlink_list_length(&lclient_list
) > (unsigned long)Count
.max_loc
)
539 Count
.max_loc
= dlink_list_length(&lclient_list
);
540 if(!(Count
.max_loc
% 10))
541 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
,
542 "New Max Local Clients: %d", Count
.max_loc
);
545 /* they get a reduced limit */
546 if(find_tgchange(source_p
->sockhost
))
547 USED_TARGETS(source_p
) = 6;
549 call_hook(h_new_local_user
, source_p
);
551 monitor_signon(source_p
);
552 user_welcome(source_p
);
554 free_pre_client(source_p
);
556 return (introduce_client(client_p
, source_p
, user
, source_p
->name
, 1));
564 * side effects - This common function introduces a client to the rest
565 * of the net, either from a local client connect or
566 * from a remote connect.
569 introduce_client(struct Client
*client_p
, struct Client
*source_p
, struct User
*user
, const char *nick
, int use_euid
)
571 static char ubuf
[12];
572 struct Client
*identifyservice_p
;
574 hook_data_umode_changed hdata
;
575 hook_data_client hdata2
;
577 if(MyClient(source_p
))
578 send_umode(source_p
, source_p
, 0, 0, ubuf
);
580 send_umode(NULL
, source_p
, 0, 0, ubuf
);
588 /* if it has an ID, introduce it with its id to TS6 servers,
589 * otherwise introduce it normally to all.
593 char sockhost
[HOSTLEN
];
594 if(source_p
->sockhost
[0] == ':')
598 strlcat(sockhost
, source_p
->sockhost
, sizeof(sockhost
));
600 strcpy(sockhost
, source_p
->sockhost
);
603 sendto_server(client_p
, NULL
, CAP_EUID
| CAP_TS6
, NOCAPS
,
604 ":%s EUID %s %d %ld %s %s %s %s %s %s %s :%s",
605 source_p
->servptr
->id
, nick
,
606 source_p
->hopcount
+ 1,
607 (long) source_p
->tsinfo
, ubuf
,
608 source_p
->username
, source_p
->host
,
609 IsIPSpoof(source_p
) ? "0" : sockhost
,
611 IsDynSpoof(source_p
) ? source_p
->orighost
: "*",
612 EmptyString(source_p
->user
->suser
) ? "*" : source_p
->user
->suser
,
615 sendto_server(client_p
, NULL
, CAP_TS6
, use_euid
? CAP_EUID
: NOCAPS
,
616 ":%s UID %s %d %ld %s %s %s %s %s :%s",
617 source_p
->servptr
->id
, nick
,
618 source_p
->hopcount
+ 1,
619 (long) source_p
->tsinfo
, ubuf
,
620 source_p
->username
, source_p
->host
,
621 IsIPSpoof(source_p
) ? "0" : sockhost
,
622 source_p
->id
, source_p
->info
);
624 sendto_server(client_p
, NULL
, NOCAPS
, CAP_TS6
,
625 "NICK %s %d %ld %s %s %s %s :%s",
626 nick
, source_p
->hopcount
+ 1,
627 (long) source_p
->tsinfo
,
628 ubuf
, source_p
->username
, source_p
->host
,
629 user
->server
, source_p
->info
);
632 sendto_server(client_p
, NULL
, NOCAPS
, NOCAPS
,
633 "NICK %s %d %ld %s %s %s %s :%s",
634 nick
, source_p
->hopcount
+ 1,
635 (long) source_p
->tsinfo
,
636 ubuf
, source_p
->username
, source_p
->host
,
637 user
->server
, source_p
->info
);
639 if (IsDynSpoof(source_p
))
641 sendto_server(client_p
, NULL
, CAP_TS6
, use_euid
? CAP_EUID
: NOCAPS
, ":%s ENCAP * REALHOST %s",
642 use_id(source_p
), source_p
->orighost
);
643 sendto_server(client_p
, NULL
, NOCAPS
, CAP_TS6
, ":%s ENCAP * REALHOST %s",
644 source_p
->name
, source_p
->orighost
);
646 if (!EmptyString(source_p
->user
->suser
))
648 sendto_server(client_p
, NULL
, CAP_TS6
, use_euid
? CAP_EUID
: NOCAPS
, ":%s ENCAP * LOGIN %s",
649 use_id(source_p
), source_p
->user
->suser
);
650 sendto_server(client_p
, NULL
, NOCAPS
, CAP_TS6
, ":%s ENCAP * LOGIN %s",
651 source_p
->name
, source_p
->user
->suser
);
654 if(MyConnect(source_p
) && source_p
->localClient
->passwd
)
656 if (ConfigFileEntry
.identifyservice
[0] != '\0' &&
657 ConfigFileEntry
.identifycommand
[0] != '\0')
659 /* use user@server */
660 p
= strchr(ConfigFileEntry
.identifyservice
, '@');
662 identifyservice_p
= find_named_client(p
+ 1);
664 identifyservice_p
= NULL
;
665 if (identifyservice_p
!= NULL
)
666 sendto_one(identifyservice_p
, ":%s PRIVMSG %s :%s %s",
667 get_id(source_p
, identifyservice_p
),
668 ConfigFileEntry
.identifyservice
,
669 ConfigFileEntry
.identifycommand
,
670 source_p
->localClient
->passwd
);
672 memset(source_p
->localClient
->passwd
, 0, strlen(source_p
->localClient
->passwd
));
673 MyFree(source_p
->localClient
->passwd
);
674 source_p
->localClient
->passwd
= NULL
;
677 /* let modules providing usermodes know that we've got a new user,
678 * why is this here? -- well, some modules need to be able to send out new
679 * information about a client, so this was the best place to do it
682 hdata
.client
= source_p
;
684 hdata
.oldsnomask
= 0;
685 call_hook(h_umode_changed
, &hdata
);
687 /* On the other hand, some modules need to know when a client is
688 * being introduced, period.
691 hdata2
.client
= client_p
;
692 hdata2
.target
= source_p
;
693 call_hook(h_introduce_client
, &hdata2
);
699 * valid_hostname - check hostname for validity
701 * Inputs - pointer to user
702 * Output - YES if valid, NO if not
703 * Side effects - NONE
705 * NOTE: this doesn't allow a hostname to begin with a dot and
706 * will not allow more dots than chars.
709 valid_hostname(const char *hostname
)
711 const char *p
= hostname
;
719 if('.' == *p
|| ':' == *p
|| '/' == *p
)
726 if(*p
== '.' || *p
== ':' || *p
== '/')
738 * valid_username - check username for validity
740 * Inputs - pointer to user
741 * Output - YES if valid, NO if not
742 * Side effects - NONE
744 * Absolutely always reject any '*' '!' '?' '@' in an user name
745 * reject any odd control characters names.
746 * Allow '.' in username to allow for "first.last"
750 valid_username(const char *username
)
753 const char *p
= username
;
763 /* reject usernames that don't start with an alphanum
764 * i.e. reject jokers who have '-@somehost' or '.@somehost'
765 * or "-hi-@somehost", "h-----@somehost" would still be accepted.
772 if((*p
== '.') && ConfigFileEntry
.dots_in_ident
)
775 if(dots
> ConfigFileEntry
.dots_in_ident
)
777 if(!IsUserChar(p
[1]))
780 else if(!IsUserChar(*p
))
786 /* report_and_set_user_flags
788 * Inputs - pointer to source_p
789 * - pointer to aconf for this user
792 * Report to user any special flags they are getting, and set them.
796 report_and_set_user_flags(struct Client
*source_p
, struct ConfItem
*aconf
)
798 /* If this user is being spoofed, tell them so */
799 if(IsConfDoSpoofIp(aconf
))
802 ":%s NOTICE %s :*** Spoofing your IP. congrats.",
803 me
.name
, source_p
->name
);
806 /* If this user is in the exception class, Set it "E lined" */
807 if(IsConfExemptKline(aconf
))
809 SetExemptKline(source_p
);
811 ":%s NOTICE %s :*** You are exempt from K/D/G/X lines. congrats.",
812 me
.name
, source_p
->name
);
815 if(IsConfExemptDNSBL(aconf
))
816 /* kline exempt implies this, don't send both */
817 if(!IsConfExemptKline(aconf
))
819 ":%s NOTICE %s :*** You are exempt from DNS blacklists.",
820 me
.name
, source_p
->name
);
822 /* If this user is exempt from user limits set it F lined" */
823 if(IsConfExemptLimits(aconf
))
825 SetExemptLimits(source_p
);
827 ":%s NOTICE %s :*** You are exempt from user limits. congrats.",
828 me
.name
, source_p
->name
);
831 /* If this user is exempt from idle time outs */
832 if(IsConfIdlelined(aconf
))
834 SetIdlelined(source_p
);
836 ":%s NOTICE %s :*** You are exempt from idle limits. congrats.",
837 me
.name
, source_p
->name
);
840 if(IsConfExemptFlood(aconf
))
842 SetExemptFlood(source_p
);
844 ":%s NOTICE %s :*** You are exempt from flood limits.",
845 me
.name
, source_p
->name
);
848 if(IsConfExemptSpambot(aconf
))
850 SetExemptSpambot(source_p
);
852 ":%s NOTICE %s :*** You are exempt from spambot checks.",
853 me
.name
, source_p
->name
);
856 if(IsConfExemptJupe(aconf
))
858 SetExemptJupe(source_p
);
860 ":%s NOTICE %s :*** You are exempt from juped channel warnings.",
861 me
.name
, source_p
->name
);
864 if(IsConfExemptResv(aconf
))
866 SetExemptResv(source_p
);
868 ":%s NOTICE %s :*** You are exempt from resvs.",
869 me
.name
, source_p
->name
);
872 if(IsConfExemptShide(aconf
))
874 SetExemptShide(source_p
);
876 ":%s NOTICE %s :*** You are exempt from serverhiding.",
877 me
.name
, source_p
->name
);
882 * user_mode - set get current users mode
884 * m_umode() added 15/10/91 By Darren Reed.
886 * parv[1] - username to change mode for
887 * parv[2] - modes to change
890 user_mode(struct Client
*client_p
, struct Client
*source_p
, int parc
, const char *parv
[])
896 struct Client
*target_p
;
898 int badflag
= NO
; /* Only send one bad flag notice */
899 int showsnomask
= NO
;
900 unsigned int setsnomask
;
902 hook_data_umode_changed hdata
;
908 sendto_one(source_p
, form_str(ERR_NEEDMOREPARAMS
), me
.name
, source_p
->name
, "MODE");
912 if((target_p
= MyClient(source_p
) ? find_named_person(parv
[1]) : find_person(parv
[1])) == NULL
)
914 if(MyConnect(source_p
))
915 sendto_one_numeric(source_p
, ERR_NOSUCHCHANNEL
,
916 form_str(ERR_NOSUCHCHANNEL
), parv
[1]);
920 /* Dont know why these were commented out..
921 * put them back using new sendto() funcs
924 if(IsServer(source_p
))
926 sendto_realops_snomask(SNO_GENERAL
, L_NETWIDE
,
927 "*** Mode for User %s from %s", parv
[1], source_p
->name
);
931 if(source_p
!= target_p
|| target_p
->from
!= source_p
->from
)
933 sendto_one(source_p
, form_str(ERR_USERSDONTMATCH
), me
.name
, source_p
->name
);
942 for (i
= 0; i
< 128; i
++) /* >= 127 is extended ascii */
943 if (source_p
->umodes
& user_modes
[i
])
947 sendto_one(source_p
, form_str(RPL_UMODEIS
), me
.name
, source_p
->name
, buf
);
948 if (source_p
->snomask
!= 0)
949 sendto_one(source_p
, form_str(RPL_SNOMASK
), me
.name
, source_p
->name
,
950 construct_snobuf(source_p
->snomask
));
954 /* find flags already set for user */
955 setflags
= source_p
->umodes
;
956 setsnomask
= source_p
->snomask
;
959 * parse mode change string(s)
961 for (pm
= parv
[2]; *pm
; pm
++)
974 if(IsServer(client_p
) && !IsOper(source_p
))
978 dlinkAddAlloc(source_p
, &oper_list
);
983 /* Only decrement the oper counts if an oper to begin with
984 * found by Pat Szuta, Perly , perly@xnet.com
987 if(!IsOper(source_p
))
994 if(MyConnect(source_p
))
996 source_p
->umodes
&= ~ConfigFileEntry
.oper_only_umodes
;
997 if (!(source_p
->umodes
& UMODE_SERVNOTICE
) && source_p
->snomask
!= 0)
999 source_p
->snomask
= 0;
1002 source_p
->operflags
= 0;
1004 MyFree(source_p
->localClient
->opername
);
1005 source_p
->localClient
->opername
= NULL
;
1007 dlinkFindDestroy(source_p
, &local_oper_list
);
1010 dlinkFindDestroy(source_p
, &oper_list
);
1014 /* we may not get these,
1015 * but they shouldnt be in default
1018 /* can only be set on burst */
1027 if (MyConnect(source_p
))
1029 if(!IsOper(source_p
)
1030 && (ConfigFileEntry
.oper_only_umodes
& UMODE_SERVNOTICE
))
1032 if (what
== MODE_ADD
|| source_p
->umodes
& UMODE_SERVNOTICE
)
1037 if(what
== MODE_ADD
)
1040 source_p
->snomask
= parse_snobuf_to_mask(source_p
->snomask
, parv
[3]);
1042 source_p
->snomask
|= SNO_GENERAL
;
1045 source_p
->snomask
= 0;
1046 if (source_p
->snomask
!= 0)
1047 source_p
->umodes
|= UMODE_SERVNOTICE
;
1049 source_p
->umodes
&= ~UMODE_SERVNOTICE
;
1054 if((flag
= user_modes
[(unsigned char) *pm
]))
1056 if(MyConnect(source_p
)
1057 && !IsOper(source_p
)
1058 && (ConfigFileEntry
.oper_only_umodes
& flag
))
1060 if (what
== MODE_ADD
|| source_p
->umodes
& flag
)
1065 if(what
== MODE_ADD
)
1066 source_p
->umodes
|= flag
;
1068 source_p
->umodes
&= ~flag
;
1073 if(MyConnect(source_p
))
1080 sendto_one(source_p
, form_str(ERR_UMODEUNKNOWNFLAG
), me
.name
, source_p
->name
);
1082 if(MyClient(source_p
) && (source_p
->umodes
& UMODE_OPERWALL
) && !IsOperOperwall(source_p
))
1084 if(IsOper(source_p
))
1085 sendto_one(source_p
,
1086 ":%s NOTICE %s :*** You need the operwall flag for +z", me
.name
, parv
[0]);
1088 sendto_one(source_p
, form_str(ERR_UMODEUNKNOWNFLAG
), me
.name
, source_p
->name
);
1089 source_p
->umodes
&= ~UMODE_OPERWALL
;
1092 if(MyConnect(source_p
) && (source_p
->umodes
& UMODE_ADMIN
) &&
1093 (!IsOperAdmin(source_p
) || IsOperHiddenAdmin(source_p
)))
1095 if(IsOper(source_p
))
1096 sendto_one(source_p
,
1097 ":%s NOTICE %s :*** You need the A flag for +a", me
.name
, parv
[0]);
1099 sendto_one(source_p
, form_str(ERR_UMODEUNKNOWNFLAG
), me
.name
, source_p
->name
);
1100 source_p
->umodes
&= ~UMODE_ADMIN
;
1103 if(MyClient(source_p
) && (source_p
->umodes
& UMODE_HELPER
) && !IsOperHelper(source_p
))
1105 if(IsOper(source_p
))
1106 sendto_one(source_p
,
1107 ":%s NOTICE %s :*** You need the helper flag for +T", me
.name
, parv
[0]);
1109 sendto_one(source_p
, form_str(ERR_UMODEUNKNOWNFLAG
), me
.name
, source_p
->name
);
1111 source_p
->umodes
&= ~UMODE_HELPER
;
1114 if(MyClient(source_p
) && (source_p
->umodes
& UMODE_OVERRIDE
) && !IsOperOverride(source_p
))
1116 if(IsOper(source_p
))
1117 sendto_one(source_p
,
1118 ":%s NOTICE %s :*** You need the override flag for +p", me
.name
, parv
[0]);
1120 sendto_one(source_p
, form_str(ERR_UMODEUNKNOWNFLAG
), me
.name
, source_p
->name
);
1122 source_p
->umodes
&= ~UMODE_OVERRIDE
;
1125 if(MyClient(source_p
) &&
1126 ((source_p
->snomask
& source_p
->allowed_snomask
) != source_p
->snomask
))
1128 sendto_one(source_p
,
1129 ":%s NOTICE %s :*** Server notices not granted: %s",
1130 me
.name
, source_p
->name
,
1131 construct_snobuf(source_p
->snomask
& ~source_p
->allowed_snomask
));
1132 source_p
->snomask
&= source_p
->allowed_snomask
;
1135 /* let modules providing usermodes know that we've changed our usermode --nenolod */
1136 hdata
.client
= source_p
;
1137 hdata
.oldumodes
= setflags
;
1138 hdata
.oldsnomask
= setsnomask
;
1139 call_hook(h_umode_changed
, &hdata
);
1141 if(!(setflags
& UMODE_INVISIBLE
) && IsInvisible(source_p
))
1143 if((setflags
& UMODE_INVISIBLE
) && !IsInvisible(source_p
))
1146 * compare new flags with old flags and send string which
1147 * will cause servers to update correctly.
1149 send_umode_out(client_p
, source_p
, setflags
);
1150 if (showsnomask
&& MyConnect(source_p
))
1151 sendto_one(source_p
, form_str(RPL_SNOMASK
), me
.name
, source_p
->name
,
1152 construct_snobuf(source_p
->snomask
));
1158 * send the MODE string for user (user) to connection client_p
1162 send_umode(struct Client
*client_p
, struct Client
*source_p
, int old
, int sendmask
, char *umode_buf
)
1170 * build a string in umode_buf to represent the change in the user's
1171 * mode between the new (source_p->flag) and 'old'.
1176 for (i
= 0; i
< 128; i
++)
1178 flag
= user_modes
[i
];
1180 if((flag
& old
) && !(source_p
->umodes
& flag
))
1182 if(what
== MODE_DEL
)
1191 else if(!(flag
& old
) && (source_p
->umodes
& flag
))
1193 if(what
== MODE_ADD
)
1205 if(*umode_buf
&& client_p
)
1206 sendto_one(client_p
, ":%s MODE %s :%s", source_p
->name
, source_p
->name
, umode_buf
);
1217 send_umode_out(struct Client
*client_p
, struct Client
*source_p
, int old
)
1219 struct Client
*target_p
;
1223 send_umode(NULL
, source_p
, old
, 0, buf
);
1225 DLINK_FOREACH(ptr
, serv_list
.head
)
1227 target_p
= ptr
->data
;
1229 if((target_p
!= client_p
) && (target_p
!= source_p
) && (*buf
))
1231 sendto_one(target_p
, ":%s MODE %s :%s",
1232 get_id(source_p
, target_p
),
1233 get_id(source_p
, target_p
), buf
);
1237 if(client_p
&& MyClient(client_p
))
1238 send_umode(client_p
, source_p
, old
, 0, buf
);
1244 * inputs - client pointer to client to welcome
1249 user_welcome(struct Client
*source_p
)
1251 sendto_one(source_p
, form_str(RPL_WELCOME
), me
.name
, source_p
->name
,
1252 ServerInfo
.network_name
, source_p
->name
);
1253 sendto_one(source_p
, form_str(RPL_YOURHOST
), me
.name
,
1255 get_listener_name(source_p
->localClient
->listener
), ircd_version
);
1257 sendto_one(source_p
, form_str(RPL_CREATED
), me
.name
, source_p
->name
, creation
);
1258 sendto_one(source_p
, form_str(RPL_MYINFO
), me
.name
, source_p
->name
, me
.name
, ircd_version
, umodebuf
);
1260 show_isupport(source_p
);
1262 show_lusers(source_p
);
1264 if(ConfigFileEntry
.short_motd
)
1266 sendto_one(source_p
,
1267 "NOTICE %s :*** Notice -- motd was last changed at %s",
1268 source_p
->name
, user_motd_changed
);
1270 sendto_one(source_p
,
1271 "NOTICE %s :*** Notice -- Please read the motd if you haven't read it",
1274 sendto_one(source_p
, form_str(RPL_MOTDSTART
),
1275 me
.name
, source_p
->name
, me
.name
);
1277 sendto_one(source_p
, form_str(RPL_MOTD
),
1278 me
.name
, source_p
->name
, "*** This is the short motd ***");
1280 sendto_one(source_p
, form_str(RPL_ENDOFMOTD
), me
.name
, source_p
->name
);
1283 send_user_motd(source_p
);
1288 * inputs - pointer to given client to oper
1289 * - pointer to ConfItem to use
1291 * side effects - opers up source_p using aconf for reference
1294 oper_up(struct Client
*source_p
, struct oper_conf
*oper_p
)
1296 unsigned int old
= source_p
->umodes
, oldsnomask
= source_p
->snomask
;
1297 hook_data_umode_changed hdata
;
1302 source_p
->umodes
|= oper_p
->umodes
;
1303 else if(ConfigFileEntry
.oper_umodes
)
1304 source_p
->umodes
|= ConfigFileEntry
.oper_umodes
;
1306 source_p
->umodes
|= DEFAULT_OPER_UMODES
;
1308 if (oper_p
->snomask
)
1310 source_p
->snomask
|= oper_p
->snomask
& oper_p
->allowed_snomask
;
1311 source_p
->umodes
|= UMODE_SERVNOTICE
;
1313 else if (source_p
->umodes
& UMODE_SERVNOTICE
)
1315 /* Only apply these if +s is already set -- jilles */
1316 if (ConfigFileEntry
.oper_snomask
)
1317 source_p
->snomask
|= ConfigFileEntry
.oper_snomask
;
1319 source_p
->snomask
|= DEFAULT_OPER_SNOMASK
;
1324 SetExemptKline(source_p
);
1326 source_p
->allowed_snomask
= oper_p
->allowed_snomask
;
1327 source_p
->operflags
= oper_p
->flags
;
1328 DupString(source_p
->localClient
->opername
, oper_p
->name
);
1330 dlinkAddAlloc(source_p
, &local_oper_list
);
1331 dlinkAddAlloc(source_p
, &oper_list
);
1333 if(IsOperAdmin(source_p
) && !IsOperHiddenAdmin(source_p
))
1334 source_p
->umodes
|= UMODE_ADMIN
;
1335 if(!IsOperOperwall(source_p
))
1336 source_p
->umodes
&= ~UMODE_OPERWALL
;
1337 hdata
.client
= source_p
;
1338 hdata
.oldumodes
= old
;
1339 hdata
.oldsnomask
= oldsnomask
;
1340 call_hook(h_umode_changed
, &hdata
);
1342 sendto_realops_snomask(SNO_GENERAL
, L_ALL
,
1343 "%s (%s@%s) is now an operator", source_p
->name
,
1344 source_p
->username
, source_p
->host
);
1345 send_umode_out(source_p
, source_p
, old
);
1346 sendto_one(source_p
, form_str(RPL_SNOMASK
), me
.name
, source_p
->name
,
1347 construct_snobuf(source_p
->snomask
));
1348 sendto_one(source_p
, form_str(RPL_YOUREOPER
), me
.name
, source_p
->name
);
1349 sendto_one(source_p
, ":%s NOTICE %s :*** Oper privs are %s", me
.name
,
1350 source_p
->name
, get_oper_privs(oper_p
->flags
));
1351 sendto_one(source_p
, ":%s NOTICE %s :*** Allowed snomasks are %s", me
.name
,
1352 source_p
->name
, construct_snobuf(source_p
->allowed_snomask
));
1353 send_oper_motd(source_p
);
1355 sendto_server(source_p
, NULL
, CAP_TS6
, NOCAPS
, ":%s ENCAP * OPER %s",
1356 use_id(source_p
), get_oper_privs(oper_p
->flags
));
1358 sendto_server(source_p
, NULL
, NOCAPS
, CAP_TS6
, ":%s ENCAP * OPER %s",
1359 source_p
->name
, get_oper_privs(oper_p
->flags
));
1365 construct_umodebuf(void)
1368 char *ptr
= umodebuf
;
1372 for (i
= 0; i
< 128; i
++)
1380 change_nick_user_host(struct Client
*target_p
, const char *nick
, const char *user
,
1381 const char *host
, int newts
, char *format
, ...)
1384 struct Channel
*chptr
;
1385 struct membership
*mscptr
;
1386 int changed
= irccmp(target_p
->name
, nick
);
1387 int changed_case
= strcmp(target_p
->name
, nick
);
1388 int do_qjm
= irccmp(target_p
->username
, user
) || irccmp(target_p
->host
, host
);
1389 char mode
[10], modeval
[NICKLEN
* 2 + 2], reason
[256], *mptr
;
1396 target_p
->tsinfo
= newts
;
1397 monitor_signoff(target_p
);
1399 invalidate_bancache_user(target_p
);
1403 va_start(ap
, format
);
1404 vsnprintf(reason
, 255, format
, ap
);
1407 sendto_common_channels_local_butone(target_p
, ":%s!%s@%s QUIT :%s",
1408 target_p
->name
, target_p
->username
, target_p
->host
,
1411 DLINK_FOREACH(ptr
, target_p
->user
->channel
.head
)
1414 chptr
= mscptr
->chptr
;
1417 if(is_real_chanop(mscptr
))
1420 strcat(modeval
, nick
);
1421 strcat(modeval
, " ");
1424 if(is_voiced(mscptr
))
1427 strcat(modeval
, nick
);
1432 sendto_channel_local_butone(target_p
, ALL_MEMBERS
, chptr
, ":%s!%s@%s JOIN :%s",
1433 nick
, user
, host
, chptr
->chname
);
1435 sendto_channel_local_butone(target_p
, ALL_MEMBERS
, chptr
,
1436 ":%s MODE %s +%s %s",
1437 target_p
->servptr
->name
,
1438 chptr
->chname
, mode
, modeval
);
1443 if(MyClient(target_p
) && changed_case
)
1444 sendto_one(target_p
, ":%s!%s@%s NICK %s",
1445 target_p
->name
, target_p
->username
, target_p
->host
, nick
);
1447 else if(changed_case
)
1449 sendto_common_channels_local(target_p
, ":%s!%s@%s NICK :%s",
1450 target_p
->name
, target_p
->username
,
1451 target_p
->host
, nick
);
1454 strlcpy(target_p
->username
, user
, USERLEN
);
1455 strlcpy(target_p
->host
, host
, HOSTLEN
);
1458 add_history(target_p
, 1);
1460 del_from_client_hash(target_p
->name
, target_p
);
1461 strlcpy(target_p
->name
, nick
, NICKLEN
);
1462 add_to_client_hash(target_p
->name
, target_p
);
1466 monitor_signon(target_p
);
1467 del_all_accepts(target_p
);