2 * IRC - Internet Relay Chat, ircd/s_misc.c (formerly ircd/date.c)
3 * Copyright (C) 1990 Jarkko Oikarinen and
4 * University of Oulu, Computing Center
6 * See file AUTHORS in IRC package for additional names of
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 1, or (at your option)
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., 675 Mass Ave, Cambridge, MA 02139, USA.
33 #include "ircd_alloc.h"
34 #include "ircd_auth.h"
35 #include "ircd_features.h"
37 #include "ircd_reply.h"
38 #include "ircd_snprintf.h"
39 #include "ircd_string.h"
47 #include "querycmds.h"
70 static char *months[] = {
71 "January", "February", "March", "April",
72 "May", "June", "July", "August",
73 "September", "October", "November", "December"
76 static char *weekdays[] = {
77 "Sunday", "Monday", "Tuesday", "Wednesday",
78 "Thursday", "Friday", "Saturday"
84 static struct ServerStatistics ircst;
85 struct ServerStatistics* ServerStats = &ircst;
87 char *date(time_t clock)
89 static char buf[80], plus;
97 memcpy(&gmbuf, gm, sizeof(gmbuf));
99 lt = localtime(&clock);
101 minswest = (gm->tm_hour - lt->tm_hour) * 60 + (gm->tm_min - lt->tm_min);
102 if (lt->tm_yday != gm->tm_yday)
104 if ((lt->tm_yday > gm->tm_yday && lt->tm_year == gm->tm_year) ||
105 (lt->tm_yday < gm->tm_yday && lt->tm_year != gm->tm_year))
111 plus = (minswest > 0) ? '-' : '+';
113 minswest = -minswest;
115 sprintf(buf, "%s %s %d %d -- %02d:%02d %c%02d:%02d",
116 weekdays[lt->tm_wday], months[lt->tm_mon], lt->tm_mday,
117 1900 + lt->tm_year, lt->tm_hour, lt->tm_min,
118 plus, minswest / 60, minswest % 60);
126 * This is like standard ctime()-function, but it zaps away
127 * the newline from the end of that string. Also, it takes
128 * the time value as parameter, instead of pointer to it.
129 * Note that it is necessary to copy the string to alternate
130 * buffer (who knows how ctime() implements it, maybe it statically
131 * has newline there and never 'refreshes' it -- zapping that
132 * might break things in other places...)
134 char *myctime(time_t value)
139 strcpy(buf, ctime(&value));
140 if ((p = strchr(buf, '\n')) != NULL)
148 * Return the name of the client for various tracking and
149 * admin purposes. The main purpose of this function is to
150 * return the "socket host" name of the client, if that
151 * differs from the advertised name (other than case).
152 * But, this can be used to any client structure.
155 * "name[user@ip#.port]" if 'showip' is true;
156 * "name" if 'showip' is false.
159 * Watch out the allocation of "nbuf", if either sptr->name
160 * or sptr->sockhost gets changed into pointers instead of
161 * directly allocated within the structure...
164 * Function return either a pointer to the structure (sptr) or
165 * to internal buffer (nbuf). *NEVER* use the returned pointer
166 * to modify what it points!!!
168 const char* get_client_name(const struct Client* sptr, int showip)
170 static char nbuf[HOSTLEN * 2 + USERLEN + 5];
172 if (MyConnect(sptr)) {
174 ircd_snprintf(0, nbuf, sizeof(nbuf), "%s[%s@%s]", cli_name(sptr),
175 IsIdented(sptr) ? cli_username(sptr) : "unknown",
178 return cli_name(sptr);
181 return cli_name(sptr);
184 const char *get_client_host(const struct Client *cptr)
186 return get_client_name(cptr, HIDE_IP);
190 * Form sockhost such that if the host is of form user@host, only the host
193 void get_sockhost(struct Client *cptr, char *host)
196 if ((s = strchr(host, '@')))
200 ircd_strncpy(cli_sockhost(cptr), s, HOSTLEN);
204 * Exit one client, local or remote. Assuming for local client that
205 * all dependants already have been removed, and socket is closed.
207 * Rewritten by Run - 24 sept 94
209 * bcptr : client being (s)quitted
210 * sptr : The source (prefix) of the QUIT or SQUIT
214 static void exit_one_client(struct Client* bcptr, const char* comment)
218 if (cli_serv(bcptr) && cli_serv(bcptr)->client_list) /* Was SetServerYXX called ? */
219 ClearServerYXX(bcptr); /* Removes server from server_list[] */
222 * clear out uping requests
225 uping_cancel(bcptr, 0);
227 * Stop a running /LIST clean
229 if (MyUser(bcptr) && cli_listing(bcptr)) {
230 cli_listing(bcptr)->chptr->mode.mode &= ~MODE_LISTED;
231 MyFree(cli_listing(bcptr));
232 cli_listing(bcptr) = NULL;
235 * If a person is on a channel, send a QUIT notice
236 * to every client (person) on the same channel (so
237 * that the client can show the "**signoff" message).
238 * (Note: The notice is to the local clients *only*)
240 sendcmdto_common_channels_butone(bcptr, CMD_QUIT, NULL, ":%s", comment);
242 remove_user_from_all_channels(bcptr);
244 /* Clean up invitefield */
245 while ((lp = cli_user(bcptr)->invited))
246 del_invite(bcptr, lp->value.chptr);
248 /* Clean up silencefield */
249 while ((lp = cli_user(bcptr)->silence))
250 del_silence(bcptr, lp->value.cp);
252 /* Clean up snotice lists */
254 set_snomask(bcptr, ~0, SNO_DEL);
256 if (IsInvisible(bcptr))
257 --UserStats.inv_clients;
260 if (MyConnect(bcptr))
261 Count_clientdisconnects(bcptr, UserStats);
263 Count_remoteclientquits(UserStats, bcptr);
266 else if (IsServer(bcptr))
268 /* Remove downlink list node of uplink */
269 remove_dlink(&(cli_serv(cli_serv(bcptr)->up))->down, cli_serv(bcptr)->updown);
270 cli_serv(bcptr)->updown = 0;
272 if (MyConnect(bcptr))
273 Count_serverdisconnects(UserStats);
275 Count_remoteserverquits(UserStats);
277 else if (IsMe(bcptr))
279 sendto_opmask_butone(0, SNO_OLDSNO, "ERROR: tried to exit me! : %s",
281 return; /* ...must *never* exit self! */
283 else if (IsUnknown(bcptr) || IsConnecting(bcptr) || IsHandshake(bcptr))
284 Count_unknowndisconnects(UserStats);
289 if (IsIPChecked(bcptr))
290 IPcheck_disconnect(bcptr);
293 * Remove from serv->client_list
294 * NOTE: user is *always* NULL if this is a server
296 if (cli_user(bcptr)) {
297 assert(!IsServer(bcptr));
298 /* bcptr->user->server->serv->client_list[IndexYXX(bcptr)] = NULL; */
299 RemoveYXXClient(cli_user(bcptr)->server, cli_yxx(bcptr));
300 if (IsIAuthed(bcptr) || cli_iauth(bcptr))
301 iauth_exit_client(bcptr);
304 /* Remove bcptr from the client list */
306 if (hRemClient(bcptr) != 0)
307 Debug((DEBUG_ERROR, "%p !in tab %s[%s] %p %p %p %d %d %p",
308 bcptr, cli_name(bcptr), cli_from(bcptr) ? cli_sockhost(cli_from(bcptr)) : "??host",
309 cli_from(bcptr), cli_next(bcptr), cli_prev(bcptr), cli_fd(bcptr),
310 cli_status(bcptr), cli_user(bcptr)));
314 remove_client_from_list(bcptr);
318 * exit_downlinks - added by Run 25-9-94
320 * Removes all clients and downlinks (+clients) of any server
321 * QUITs are generated and sent to local users.
323 * cptr : server that must have all dependents removed
324 * sptr : source who thought that this was a good idea
325 * comment : comment sent as sign off message to local clients
327 static void exit_downlinks(struct Client *cptr, struct Client *sptr, char *comment)
329 struct Client *acptr;
332 struct Client **acptrp;
335 /* Run over all its downlinks */
336 for (lp = cli_serv(cptr)->down; lp; lp = next)
339 acptr = lp->value.cptr;
340 /* Remove the downlinks and client of the downlink */
341 exit_downlinks(acptr, sptr, comment);
342 /* Remove the downlink itself */
343 exit_one_client(acptr, cli_name(&me));
345 /* Remove all clients of this server */
346 acptrp = cli_serv(cptr)->client_list;
347 for (i = 0; i <= cli_serv(cptr)->nn_mask; ++acptrp, ++i) {
349 exit_one_client(*acptrp, comment);
354 * exit_client, rewritten 25-9-94 by Run
356 * This function exits a client of *any* type (user, server, etc)
357 * from this server. Also, this generates all necessary prototol
358 * messages that this exit may cause.
360 * This function implicitly exits all other clients depending on
363 * For convenience, this function returns a suitable value for
364 * m_funtion return value:
366 * CPTR_KILLED if (cptr == bcptr)
367 * 0 if (cptr != bcptr)
369 * This function can be called in two ways:
370 * 1) From before or in parse(), exitting the 'cptr', in which case it was
371 * invoked as exit_client(cptr, cptr, &me,...), causing it to always
372 * return CPTR_KILLED.
373 * 2) Via parse from a m_function call, in which case it was invoked as
374 * exit_client(cptr, acptr, sptr, ...). Here 'sptr' is known; the client
375 * that generated the message in a way that we can assume he already
376 * did remove acptr from memory himself (or in other cases we don't mind
377 * because he will be delinked.) Or invoked as:
378 * exit_client(cptr, acptr/sptr, &me, ...) when WE decide this one should
380 * In general: No generated SQUIT or QUIT should be sent to source link
381 * sptr->from. And CPTR_KILLED should be returned if cptr got removed (too).
385 int exit_client(struct Client *cptr, /* Connection being handled by
386 read_message right now */
387 struct Client* victim, /* Client being killed */
388 struct Client* killer, /* The client that made the decision
389 to remove this one, never NULL */
390 const char* comment) /* Reason for the exit */
392 struct Client* acptr = 0;
396 char comment1[HOSTLEN + HOSTLEN + 2];
398 if (MyConnect(victim))
400 SetFlag(victim, FLAG_CLOSING);
402 if (feature_bool(FEAT_CONNEXIT_NOTICES) && IsUser(victim))
403 sendto_opmask_butone(0, SNO_CONNEXIT,
404 "Client exiting: %s (%s@%s) [%s] [%s] <%s%s>",
405 cli_name(victim), cli_user(victim)->username,
406 cli_user(victim)->host, comment,
407 ircd_ntoa((const char*) &(cli_ip(victim))),
408 NumNick(victim) /* two %s's */);
411 on_for = CurrentTime - cli_firsttime(victim);
414 log_write(LS_USER, L_TRACE, 0, "%Tu %i %s@%s %s %s %s%s %s :%s",
415 cli_firsttime(victim), on_for,
416 cli_user(victim)->username, cli_sockhost(victim),
417 ircd_ntoa((const char*) &(cli_ip(victim))),
418 IsAccount(victim) ? cli_username(victim) : "0",
419 NumNick(victim), /* two %s's */
420 cli_name(victim), cli_info(victim));
422 if (victim != cli_from(killer) /* The source knows already */
423 && IsClient(victim)) /* Not a Ping struct or Log file */
425 if (IsServer(victim) || IsHandshake(victim))
426 sendcmdto_one(killer, CMD_SQUIT, victim, "%s 0 :%s", cli_name(&me), comment);
427 else if (!IsConnecting(victim)) {
428 if (!IsDead(victim)) {
429 if (IsServer(victim))
430 sendcmdto_one(killer, CMD_ERROR, victim,
431 ":Closing Link: %s by %s (%s)", cli_name(victim),
432 cli_name(killer), comment);
434 sendrawto_one(victim, MSG_ERROR " :Closing Link: %s by %s (%s)",
435 cli_name(victim), IsServer(killer) ? cli_name(&me) :
436 cli_name(killer), comment);
439 if ((IsServer(victim) || IsHandshake(victim) || IsConnecting(victim)) &&
440 (killer == &me || (IsServer(killer) &&
441 (strncmp(comment, "Leaf-only link", 14) ||
442 strncmp(comment, "Non-Hub link", 12)))))
445 * Note: check user == user needed to make sure we have the same
448 if (cli_serv(victim)->user && *(cli_serv(victim))->by &&
449 (acptr = findNUser(cli_serv(victim)->by))) {
450 if (cli_user(acptr) == cli_serv(victim)->user) {
451 sendcmdto_one(&me, CMD_NOTICE, acptr,
452 "%C :Link with %s cancelled: %s", acptr,
453 cli_name(victim), comment);
457 * not right client, set by to empty string
460 *(cli_serv(victim))->by = '\0';
464 sendto_opmask_butone(acptr, SNO_OLDSNO, "Link with %s cancelled: %s",
465 cli_name(victim), comment);
469 * Close the Client connection first.
471 close_connection(victim);
474 if (IsServer(victim))
476 if (feature_bool(FEAT_HIS_NETSPLIT))
477 strcpy(comment1, "*.net *.split");
480 strcpy(comment1, cli_name(cli_serv(victim)->up));
481 strcat(comment1, " ");
482 strcat(comment1, cli_name(victim));
486 sendto_opmask_butone(killer, SNO_OLDSNO, "%s SQUIT by %s [%s]:",
487 (cli_user(killer)->server == victim ||
488 cli_user(killer)->server == cli_serv(victim)->up) ?
490 get_client_name(killer, HIDE_IP),
491 cli_name(cli_user(killer)->server));
492 else if (killer != &me && cli_serv(victim)->up != killer)
493 sendto_opmask_butone(0, SNO_OLDSNO, "Received SQUIT %s from %s :",
494 cli_name(victim), IsServer(killer) ? cli_name(killer) :
495 get_client_name(killer, HIDE_IP));
496 sendto_opmask_butone(0, SNO_NETWORK, "Net break: %C %C (%s)",
497 cli_serv(victim)->up, victim, comment);
499 if (feature_bool(FEAT_HIS_MAP) || feature_bool(FEAT_HIS_LINKS))
504 * First generate the needed protocol for the other server links
507 for (dlp = cli_serv(&me)->down; dlp; dlp = dlp->next) {
508 if (dlp->value.cptr != cli_from(killer) && dlp->value.cptr != victim)
510 if (IsServer(victim))
511 sendcmdto_one(killer, CMD_SQUIT, dlp->value.cptr, "%s %Tu :%s",
512 cli_name(victim), cli_serv(victim)->timestamp, comment);
513 else if (IsUser(victim) && !HasFlag(victim, FLAG_KILLED))
514 sendcmdto_one(victim, CMD_QUIT, dlp->value.cptr, ":%s", comment);
517 /* Then remove the client structures */
518 if (IsServer(victim))
519 exit_downlinks(victim, killer, comment1);
520 exit_one_client(victim, comment);
523 * cptr can only have been killed if it was cptr itself that got killed here,
524 * because cptr can never have been a dependant of victim --Run
526 return (cptr == victim) ? CPTR_KILLED : 0;
530 * Exit client with formatted message, added 25-9-94 by Run
532 int vexit_client_msg(struct Client *cptr, struct Client *bcptr, struct Client *sptr,
533 const char *pattern, va_list vl)
536 ircd_vsnprintf(0, msgbuf, sizeof(msgbuf), pattern, vl);
537 return exit_client(cptr, bcptr, sptr, msgbuf);
540 int exit_client_msg(struct Client *cptr, struct Client *bcptr,
541 struct Client *sptr, const char *pattern, ...)
546 va_start(vl, pattern);
547 ircd_vsnprintf(0, msgbuf, sizeof(msgbuf), pattern, vl);
550 return exit_client(cptr, bcptr, sptr, msgbuf);
555 memset(&ircst, 0, sizeof(ircst));
558 void tstats(struct Client *cptr, struct StatDesc *sd, int stat, char *param)
560 struct Client *acptr;
562 struct ServerStatistics *sp;
563 struct ServerStatistics tmp;
566 memcpy(sp, ServerStats, sizeof(struct ServerStatistics));
567 for (i = 0; i < MAXCONNECTIONS; i++)
569 if (!(acptr = LocalClientArray[i]))
573 sp->is_sbs += cli_sendB(acptr);
574 sp->is_sbr += cli_receiveB(acptr);
575 sp->is_sks += cli_sendK(acptr);
576 sp->is_skr += cli_receiveK(acptr);
577 sp->is_sti += CurrentTime - cli_firsttime(acptr);
579 if (sp->is_sbs > 1023)
581 sp->is_sks += (sp->is_sbs >> 10);
584 if (sp->is_sbr > 1023)
586 sp->is_skr += (sp->is_sbr >> 10);
590 else if (IsUser(acptr))
592 sp->is_cbs += cli_sendB(acptr);
593 sp->is_cbr += cli_receiveB(acptr);
594 sp->is_cks += cli_sendK(acptr);
595 sp->is_ckr += cli_receiveK(acptr);
596 sp->is_cti += CurrentTime - cli_firsttime(acptr);
598 if (sp->is_cbs > 1023)
600 sp->is_cks += (sp->is_cbs >> 10);
603 if (sp->is_cbr > 1023)
605 sp->is_ckr += (sp->is_cbr >> 10);
609 else if (IsUnknown(acptr))
613 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":accepts %u refused %u",
614 sp->is_ac, sp->is_ref);
615 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
616 ":unknown commands %u prefixes %u", sp->is_unco, sp->is_unpf);
617 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
618 ":nick collisions %u unknown closes %u", sp->is_kill, sp->is_ni);
619 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
620 ":wrong direction %u empty %u", sp->is_wrdi, sp->is_empt);
621 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
622 ":numerics seen %u mode fakes %u", sp->is_num, sp->is_fake);
623 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
624 ":auth successes %u fails %u", sp->is_asuc, sp->is_abad);
625 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":local connections %u",
627 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":Client server");
628 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":connected %u %u",
629 sp->is_cl, sp->is_sv);
630 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":bytes sent %u.%uK %u.%uK",
631 sp->is_cks, sp->is_cbs, sp->is_sks, sp->is_sbs);
632 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":bytes recv %u.%uK %u.%uK",
633 sp->is_ckr, sp->is_cbr, sp->is_skr, sp->is_sbr);
634 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":time connected %Tu %Tu",
635 sp->is_cti, sp->is_sti);