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"
35 #include "ircd_policy.h"
36 #include "ircd_reply.h"
37 #include "ircd_snprintf.h"
38 #include "ircd_string.h"
45 #include "querycmds.h"
68 static char *months[] = {
69 "January", "February", "March", "April",
70 "May", "June", "July", "August",
71 "September", "October", "November", "December"
74 static char *weekdays[] = {
75 "Sunday", "Monday", "Tuesday", "Wednesday",
76 "Thursday", "Friday", "Saturday"
82 static struct ServerStatistics ircst;
83 struct ServerStatistics* ServerStats = &ircst;
85 char *date(time_t clock)
87 static char buf[80], plus;
95 memcpy(&gmbuf, gm, sizeof(gmbuf));
97 lt = localtime(&clock);
99 minswest = (gm->tm_hour - lt->tm_hour) * 60 + (gm->tm_min - lt->tm_min);
100 if (lt->tm_yday != gm->tm_yday)
102 if ((lt->tm_yday > gm->tm_yday && lt->tm_year == gm->tm_year) ||
103 (lt->tm_yday < gm->tm_yday && lt->tm_year != gm->tm_year))
109 plus = (minswest > 0) ? '-' : '+';
111 minswest = -minswest;
113 sprintf(buf, "%s %s %d %d -- %02d:%02d %c%02d:%02d",
114 weekdays[lt->tm_wday], months[lt->tm_mon], lt->tm_mday,
115 1900 + lt->tm_year, lt->tm_hour, lt->tm_min,
116 plus, minswest / 60, minswest % 60);
124 * This is like standard ctime()-function, but it zaps away
125 * the newline from the end of that string. Also, it takes
126 * the time value as parameter, instead of pointer to it.
127 * Note that it is necessary to copy the string to alternate
128 * buffer (who knows how ctime() implements it, maybe it statically
129 * has newline there and never 'refreshes' it -- zapping that
130 * might break things in other places...)
132 char *myctime(time_t value)
137 strcpy(buf, ctime(&value));
138 if ((p = strchr(buf, '\n')) != NULL)
146 * Return the name of the client for various tracking and
147 * admin purposes. The main purpose of this function is to
148 * return the "socket host" name of the client, if that
149 * differs from the advertised name (other than case).
150 * But, this can be used to any client structure.
153 * "name[user@ip#.port]" if 'showip' is true;
154 * "name" if 'showip' is false.
157 * Watch out the allocation of "nbuf", if either sptr->name
158 * or sptr->sockhost gets changed into pointers instead of
159 * directly allocated within the structure...
162 * Function return either a pointer to the structure (sptr) or
163 * to internal buffer (nbuf). *NEVER* use the returned pointer
164 * to modify what it points!!!
166 const char* get_client_name(const struct Client* sptr, int showip)
168 static char nbuf[HOSTLEN * 2 + USERLEN + 5];
170 if (MyConnect(sptr)) {
172 ircd_snprintf(0, nbuf, sizeof(nbuf), "%s[%s@%s]", cli_name(sptr),
173 (IsIdented(sptr)) ? cli_username(sptr) : "", cli_sock_ip(sptr));
175 return cli_name(sptr);
178 return cli_name(sptr);
181 const char *get_client_host(const struct Client *cptr)
183 return get_client_name(cptr, HIDE_IP);
187 * Form sockhost such that if the host is of form user@host, only the host
190 void get_sockhost(struct Client *cptr, char *host)
193 if ((s = strchr(host, '@')))
197 ircd_strncpy(cli_sockhost(cptr), s, HOSTLEN);
201 * Exit one client, local or remote. Assuming for local client that
202 * all dependants already have been removed, and socket is closed.
204 * Rewritten by Run - 24 sept 94
206 * bcptr : client being (s)quitted
207 * sptr : The source (prefix) of the QUIT or SQUIT
211 static void exit_one_client(struct Client* bcptr, const char* comment)
215 if (cli_serv(bcptr) && cli_serv(bcptr)->client_list) /* Was SetServerYXX called ? */
216 ClearServerYXX(bcptr); /* Removes server from server_list[] */
219 * clear out uping requests
222 uping_cancel(bcptr, 0);
224 * Stop a running /LIST clean
226 if (MyUser(bcptr) && cli_listing(bcptr)) {
227 cli_listing(bcptr)->chptr->mode.mode &= ~MODE_LISTED;
228 MyFree(cli_listing(bcptr));
229 cli_listing(bcptr) = NULL;
232 * If a person is on a channel, send a QUIT notice
233 * to every client (person) on the same channel (so
234 * that the client can show the "**signoff" message).
235 * (Note: The notice is to the local clients *only*)
237 sendcmdto_common_channels_butone(bcptr, CMD_QUIT, NULL, ":%s", comment);
239 remove_user_from_all_channels(bcptr);
241 /* Clean up invitefield */
242 while ((lp = cli_user(bcptr)->invited))
243 del_invite(bcptr, lp->value.chptr);
245 /* Clean up silencefield */
246 while ((lp = cli_user(bcptr)->silence))
247 del_silence(bcptr, lp->value.cp);
249 /* Clean up snotice lists */
251 set_snomask(bcptr, ~0, SNO_DEL);
253 if (IsInvisible(bcptr))
254 --UserStats.inv_clients;
257 if (MyConnect(bcptr))
258 Count_clientdisconnects(bcptr, UserStats);
260 Count_remoteclientquits(UserStats, bcptr);
263 else if (IsServer(bcptr))
265 /* Remove downlink list node of uplink */
266 remove_dlink(&(cli_serv(cli_serv(bcptr)->up))->down, cli_serv(bcptr)->updown);
267 cli_serv(bcptr)->updown = 0;
269 if (MyConnect(bcptr))
270 Count_serverdisconnects(UserStats);
272 Count_remoteserverquits(UserStats);
273 #ifdef HEAD_IN_SAND_MAP
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));
302 /* Remove bcptr from the client list */
304 if (hRemClient(bcptr) != 0)
305 Debug((DEBUG_ERROR, "%p !in tab %s[%s] %p %p %p %d %d %p",
306 bcptr, cli_name(bcptr), cli_from(bcptr) ? cli_sockhost(cli_from(bcptr)) : "??host",
307 cli_from(bcptr), cli_next(bcptr), cli_prev(bcptr), cli_fd(bcptr),
308 cli_status(bcptr), cli_user(bcptr)));
312 remove_client_from_list(bcptr);
316 * exit_downlinks - added by Run 25-9-94
318 * Removes all clients and downlinks (+clients) of any server
319 * QUITs are generated and sent to local users.
321 * cptr : server that must have all dependents removed
322 * sptr : source who thought that this was a good idea
323 * comment : comment sent as sign off message to local clients
325 static void exit_downlinks(struct Client *cptr, struct Client *sptr, char *comment)
327 struct Client *acptr;
330 struct Client **acptrp;
333 /* Run over all its downlinks */
334 for (lp = cli_serv(cptr)->down; lp; lp = next)
337 acptr = lp->value.cptr;
338 /* Remove the downlinks and client of the downlink */
339 exit_downlinks(acptr, sptr, comment);
340 /* Remove the downlink itself */
341 exit_one_client(acptr, cli_name(&me));
343 /* Remove all clients of this server */
344 acptrp = cli_serv(cptr)->client_list;
345 for (i = 0; i <= cli_serv(cptr)->nn_mask; ++acptrp, ++i) {
347 exit_one_client(*acptrp, comment);
352 * exit_client, rewritten 25-9-94 by Run
354 * This function exits a client of *any* type (user, server, etc)
355 * from this server. Also, this generates all necessary prototol
356 * messages that this exit may cause.
358 * This function implicitly exits all other clients depending on
361 * For convenience, this function returns a suitable value for
362 * m_funtion return value:
364 * CPTR_KILLED if (cptr == bcptr)
365 * 0 if (cptr != bcptr)
367 * This function can be called in two ways:
368 * 1) From before or in parse(), exitting the 'cptr', in which case it was
369 * invoked as exit_client(cptr, cptr, &me,...), causing it to always
370 * return CPTR_KILLED.
371 * 2) Via parse from a m_function call, in which case it was invoked as
372 * exit_client(cptr, acptr, sptr, ...). Here 'sptr' is known; the client
373 * that generated the message in a way that we can assume he already
374 * did remove acptr from memory himself (or in other cases we don't mind
375 * because he will be delinked.) Or invoked as:
376 * exit_client(cptr, acptr/sptr, &me, ...) when WE decide this one should
378 * In general: No generated SQUIT or QUIT should be sent to source link
379 * sptr->from. And CPTR_KILLED should be returned if cptr got removed (too).
383 int exit_client(struct Client *cptr, /* Connection being handled by
384 read_message right now */
385 struct Client* victim, /* Client being killed */
386 struct Client* killer, /* The client that made the decision
387 to remove this one, never NULL */
388 const char* comment) /* Reason for the exit */
390 struct Client* acptr = 0;
394 char comment1[HOSTLEN + HOSTLEN + 2];
396 if (MyConnect(victim)) {
397 cli_flags(victim) |= FLAGS_CLOSING;
400 on_for = CurrentTime - cli_firsttime(victim);
403 log_write(LS_USER, L_TRACE, 0, "%s (%3d:%02d:%02d): %s@%s (%s)",
404 myctime(cli_firsttime(victim)), on_for / 3600,
405 (on_for % 3600) / 60, on_for % 60, cli_user(victim)->username,
406 cli_sockhost(victim), cli_name(victim));
408 if (victim != cli_from(killer) /* The source knows already */
409 && IsClient(victim)) /* Not a Ping struct or Log file */
411 if (IsServer(victim) || IsHandshake(victim))
412 sendcmdto_one(killer, CMD_SQUIT, victim, "%s 0 :%s", cli_name(&me), comment);
413 else if (!IsConnecting(victim)) {
414 if (!IsDead(victim)) {
415 if (IsServer(victim))
416 sendcmdto_one(killer, CMD_ERROR, victim,
417 ":Closing Link: %s by %s (%s)", cli_name(victim),
418 cli_name(killer), comment);
420 sendrawto_one(victim, MSG_ERROR " :Closing Link: %s by %s (%s)",
421 cli_name(victim), IsServer(killer) ? cli_name(&me) :
422 cli_name(killer), comment);
425 if ((IsServer(victim) || IsHandshake(victim) || IsConnecting(victim)) &&
426 (killer == &me || (IsServer(killer) &&
427 (strncmp(comment, "Leaf-only link", 14) ||
428 strncmp(comment, "Non-Hub link", 12)))))
431 * Note: check user == user needed to make sure we have the same
434 if (cli_serv(victim)->user && *(cli_serv(victim))->by &&
435 (acptr = findNUser(cli_serv(victim)->by))) {
436 if (cli_user(acptr) == cli_serv(victim)->user) {
437 sendcmdto_one(&me, CMD_NOTICE, acptr,
438 "%C :Link with %s cancelled: %s", acptr,
439 cli_name(victim), comment);
443 * not right client, set by to empty string
446 *(cli_serv(victim))->by = '\0';
450 sendto_opmask_butone(acptr, SNO_OLDSNO, "Link with %s cancelled: %s",
451 cli_name(victim), comment);
455 * Close the Client connection first.
457 close_connection(victim);
460 if (IsServer(victim))
462 #ifdef HEAD_IN_SAND_NETSPLIT
463 strcpy(comment1, "*.net *.split");
465 strcpy(comment1, cli_name(cli_serv(victim)->up));
466 strcat(comment1, " ");
467 strcat(comment1, cli_name(victim));
470 sendto_opmask_butone(killer, SNO_OLDSNO, "%s SQUIT by %s [%s]:",
471 (cli_user(killer)->server == victim ||
472 cli_user(killer)->server == cli_serv(victim)->up) ?
474 get_client_name(killer, HIDE_IP),
475 cli_name(cli_user(killer)->server));
476 else if (killer != &me && cli_serv(victim)->up != killer)
477 sendto_opmask_butone(0, SNO_OLDSNO, "Received SQUIT %s from %s :",
478 cli_name(victim), IsServer(killer) ? cli_name(killer) :
479 get_client_name(killer, HIDE_IP));
480 sendto_opmask_butone(0, SNO_NETWORK, "Net break: %C %C (%s)",
481 cli_serv(victim)->up, victim, comment);
485 * First generate the needed protocol for the other server links
488 for (dlp = cli_serv(&me)->down; dlp; dlp = dlp->next) {
489 if (dlp->value.cptr != cli_from(killer) && dlp->value.cptr != victim) {
490 if (IsServer(victim))
491 sendcmdto_one(killer, CMD_SQUIT, dlp->value.cptr, "%s %Tu :%s",
492 cli_name(victim), cli_serv(victim)->timestamp, comment);
493 else if (IsUser(victim) && 0 == (cli_flags(victim) & FLAGS_KILLED))
494 sendcmdto_one(victim, CMD_QUIT, dlp->value.cptr, ":%s", comment);
497 /* Then remove the client structures */
498 if (IsServer(victim))
499 exit_downlinks(victim, killer, comment1);
500 exit_one_client(victim, comment);
503 * cptr can only have been killed if it was cptr itself that got killed here,
504 * because cptr can never have been a dependant of victim --Run
506 return (cptr == victim) ? CPTR_KILLED : 0;
510 * Exit client with formatted message, added 25-9-94 by Run
512 int vexit_client_msg(struct Client *cptr, struct Client *bcptr, struct Client *sptr,
513 const char *pattern, va_list vl)
516 ircd_vsnprintf(0, msgbuf, sizeof(msgbuf), pattern, vl);
517 return exit_client(cptr, bcptr, sptr, msgbuf);
520 int exit_client_msg(struct Client *cptr, struct Client *bcptr,
521 struct Client *sptr, const char *pattern, ...)
526 va_start(vl, pattern);
527 ircd_vsnprintf(0, msgbuf, sizeof(msgbuf), pattern, vl);
530 return exit_client(cptr, bcptr, sptr, msgbuf);
535 memset(&ircst, 0, sizeof(ircst));
538 void tstats(struct Client *cptr, char *name)
540 struct Client *acptr;
542 struct ServerStatistics *sp;
543 struct ServerStatistics tmp;
546 memcpy(sp, ServerStats, sizeof(struct ServerStatistics));
547 for (i = 0; i < MAXCONNECTIONS; i++)
549 if (!(acptr = LocalClientArray[i]))
553 sp->is_sbs += cli_sendB(acptr);
554 sp->is_sbr += cli_receiveB(acptr);
555 sp->is_sks += cli_sendK(acptr);
556 sp->is_skr += cli_receiveK(acptr);
557 sp->is_sti += CurrentTime - cli_firsttime(acptr);
559 if (sp->is_sbs > 1023)
561 sp->is_sks += (sp->is_sbs >> 10);
564 if (sp->is_sbr > 1023)
566 sp->is_skr += (sp->is_sbr >> 10);
570 else if (IsUser(acptr))
572 sp->is_cbs += cli_sendB(acptr);
573 sp->is_cbr += cli_receiveB(acptr);
574 sp->is_cks += cli_sendK(acptr);
575 sp->is_ckr += cli_receiveK(acptr);
576 sp->is_cti += CurrentTime - cli_firsttime(acptr);
578 if (sp->is_cbs > 1023)
580 sp->is_cks += (sp->is_cbs >> 10);
583 if (sp->is_cbr > 1023)
585 sp->is_ckr += (sp->is_cbr >> 10);
589 else if (IsUnknown(acptr))
593 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":accepts %u refused %u",
594 sp->is_ac, sp->is_ref);
595 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
596 ":unknown commands %u prefixes %u", sp->is_unco, sp->is_unpf);
597 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
598 ":nick collisions %u unknown closes %u", sp->is_kill, sp->is_ni);
599 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
600 ":wrong direction %u empty %u", sp->is_wrdi, sp->is_empt);
601 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
602 ":numerics seen %u mode fakes %u", sp->is_num, sp->is_fake);
603 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
604 ":auth successes %u fails %u", sp->is_asuc, sp->is_abad);
605 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":local connections %u",
607 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":Client server");
608 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":connected %u %u",
609 sp->is_cl, sp->is_sv);
610 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":bytes sent %u.%uK %u.%uK",
611 sp->is_cks, sp->is_cbs, sp->is_sks, sp->is_sbs);
612 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":bytes recv %u.%uK %u.%uK",
613 sp->is_ckr, sp->is_cbr, sp->is_skr, sp->is_sbr);
614 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":time connected %Tu %Tu",
615 sp->is_cti, sp->is_sti);