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.
31 #include "ircd_alloc.h"
33 #include "ircd_reply.h"
34 #include "ircd_string.h"
41 #include "querycmds.h"
48 #include "sprintf_irc.h"
64 static char *months[] = {
65 "January", "February", "March", "April",
66 "May", "June", "July", "August",
67 "September", "October", "November", "December"
70 static char *weekdays[] = {
71 "Sunday", "Monday", "Tuesday", "Wednesday",
72 "Thursday", "Friday", "Saturday"
78 static struct ServerStatistics ircst;
79 struct ServerStatistics* ServerStats = &ircst;
81 char *date(time_t clock)
83 static char buf[80], plus;
91 memcpy(&gmbuf, gm, sizeof(gmbuf));
93 lt = localtime(&clock);
95 minswest = (gm->tm_hour - lt->tm_hour) * 60 + (gm->tm_min - lt->tm_min);
96 if (lt->tm_yday != gm->tm_yday)
98 if ((lt->tm_yday > gm->tm_yday && lt->tm_year == gm->tm_year) ||
99 (lt->tm_yday < gm->tm_yday && lt->tm_year != gm->tm_year))
105 plus = (minswest > 0) ? '-' : '+';
107 minswest = -minswest;
109 sprintf(buf, "%s %s %d %d -- %02d:%02d %c%02d:%02d",
110 weekdays[lt->tm_wday], months[lt->tm_mon], lt->tm_mday,
111 1900 + lt->tm_year, lt->tm_hour, lt->tm_min,
112 plus, minswest / 60, minswest % 60);
120 * This is like standard ctime()-function, but it zaps away
121 * the newline from the end of that string. Also, it takes
122 * the time value as parameter, instead of pointer to it.
123 * Note that it is necessary to copy the string to alternate
124 * buffer (who knows how ctime() implements it, maybe it statically
125 * has newline there and never 'refreshes' it -- zapping that
126 * might break things in other places...)
128 char *myctime(time_t value)
133 strcpy(buf, ctime(&value));
134 if ((p = strchr(buf, '\n')) != NULL)
142 * Return the name of the client for various tracking and
143 * admin purposes. The main purpose of this function is to
144 * return the "socket host" name of the client, if that
145 * differs from the advertised name (other than case).
146 * But, this can be used to any client structure.
149 * "name[user@ip#.port]" if 'showip' is true;
150 * "name" if 'showip' is false.
153 * Watch out the allocation of "nbuf", if either sptr->name
154 * or sptr->sockhost gets changed into pointers instead of
155 * directly allocated within the structure...
158 * Function return either a pointer to the structure (sptr) or
159 * to internal buffer (nbuf). *NEVER* use the returned pointer
160 * to modify what it points!!!
162 const char* get_client_name(const struct Client* sptr, int showip)
164 static char nbuf[HOSTLEN * 2 + USERLEN + 5];
166 if (MyConnect(sptr)) {
168 sprintf_irc(nbuf, "%s[%s@%s]", sptr->name,
169 (IsIdented(sptr)) ? sptr->username : "", sptr->sock_ip);
177 const char *get_client_host(const struct Client *cptr)
179 return get_client_name(cptr, HIDE_IP);
183 * Form sockhost such that if the host is of form user@host, only the host
186 void get_sockhost(struct Client *cptr, char *host)
189 if ((s = strchr(host, '@')))
193 ircd_strncpy(cptr->sockhost, s, HOSTLEN);
197 * Exit one client, local or remote. Assuming for local client that
198 * all dependants already have been removed, and socket is closed.
200 * Rewritten by Run - 24 sept 94
202 * bcptr : client being (s)quitted
203 * sptr : The source (prefix) of the QUIT or SQUIT
207 static void exit_one_client(struct Client* bcptr, const char* comment)
211 if (bcptr->serv && bcptr->serv->client_list) /* Was SetServerYXX called ? */
212 ClearServerYXX(bcptr); /* Removes server from server_list[] */
215 * clear out uping requests
218 uping_cancel(bcptr, 0);
220 * Stop a running /LIST clean
222 if (MyUser(bcptr) && bcptr->listing) {
223 bcptr->listing->chptr->mode.mode &= ~MODE_LISTED;
224 MyFree(bcptr->listing);
225 bcptr->listing = NULL;
228 * If a person is on a channel, send a QUIT notice
229 * to every client (person) on the same channel (so
230 * that the client can show the "**signoff" message).
231 * (Note: The notice is to the local clients *only*)
233 sendcmdto_common_channels(bcptr, CMD_QUIT, ":%s", comment);
235 remove_user_from_all_channels(bcptr);
237 /* Clean up invitefield */
238 while ((lp = bcptr->user->invited))
239 del_invite(bcptr, lp->value.chptr);
241 /* Clean up silencefield */
242 while ((lp = bcptr->user->silence))
243 del_silence(bcptr, lp->value.cp);
245 if (IsInvisible(bcptr))
246 --UserStats.inv_clients;
249 if (MyConnect(bcptr))
250 Count_clientdisconnects(bcptr, UserStats);
252 Count_remoteclientquits(UserStats, bcptr);
255 else if (IsServer(bcptr))
257 /* Remove downlink list node of uplink */
258 remove_dlink(&bcptr->serv->up->serv->down, bcptr->serv->updown);
259 bcptr->serv->updown = 0;
261 if (MyConnect(bcptr))
262 Count_serverdisconnects(UserStats);
264 Count_remoteserverquits(UserStats);
266 else if (IsMe(bcptr))
268 sendto_opmask_butone(0, SNO_OLDSNO, "ERROR: tried to exit me! : %s",
270 return; /* ...must *never* exit self! */
272 else if (IsUnknown(bcptr) || IsConnecting(bcptr) || IsHandshake(bcptr))
273 Count_unknowndisconnects(UserStats);
278 if (IsIPChecked(bcptr))
279 IPcheck_disconnect(bcptr);
282 * Remove from serv->client_list
283 * NOTE: user is *always* NULL if this is a server
286 assert(!IsServer(bcptr));
287 /* bcptr->user->server->serv->client_list[IndexYXX(bcptr)] = NULL; */
288 RemoveYXXClient(bcptr->user->server, bcptr->yxx);
291 /* Remove bcptr from the client list */
293 if (hRemClient(bcptr) != 0)
294 Debug((DEBUG_ERROR, "%p !in tab %s[%s] %p %p %p %d %d %p",
295 bcptr, bcptr->name, bcptr->from ? bcptr->from->sockhost : "??host",
296 bcptr->from, bcptr->next, bcptr->prev, bcptr->fd,
297 bcptr->status, bcptr->user));
301 remove_client_from_list(bcptr);
305 * exit_downlinks - added by Run 25-9-94
307 * Removes all clients and downlinks (+clients) of any server
308 * QUITs are generated and sent to local users.
310 * cptr : server that must have all dependents removed
311 * sptr : source who thought that this was a good idea
312 * comment : comment sent as sign off message to local clients
314 static void exit_downlinks(struct Client *cptr, struct Client *sptr, char *comment)
316 struct Client *acptr;
319 struct Client **acptrp;
322 /* Run over all its downlinks */
323 for (lp = cptr->serv->down; lp; lp = next)
326 acptr = lp->value.cptr;
327 /* Remove the downlinks and client of the downlink */
328 exit_downlinks(acptr, sptr, comment);
329 /* Remove the downlink itself */
330 exit_one_client(acptr, me.name);
332 /* Remove all clients of this server */
333 acptrp = cptr->serv->client_list;
334 for (i = 0; i <= cptr->serv->nn_mask; ++acptrp, ++i) {
336 exit_one_client(*acptrp, comment);
341 * exit_client, rewritten 25-9-94 by Run
343 * This function exits a client of *any* type (user, server, etc)
344 * from this server. Also, this generates all necessary prototol
345 * messages that this exit may cause.
347 * This function implicitly exits all other clients depending on
350 * For convenience, this function returns a suitable value for
351 * m_funtion return value:
353 * CPTR_KILLED if (cptr == bcptr)
354 * 0 if (cptr != bcptr)
356 * This function can be called in two ways:
357 * 1) From before or in parse(), exitting the 'cptr', in which case it was
358 * invoked as exit_client(cptr, cptr, &me,...), causing it to always
359 * return CPTR_KILLED.
360 * 2) Via parse from a m_function call, in which case it was invoked as
361 * exit_client(cptr, acptr, sptr, ...). Here 'sptr' is known; the client
362 * that generated the message in a way that we can assume he already
363 * did remove acptr from memory himself (or in other cases we don't mind
364 * because he will be delinked.) Or invoked as:
365 * exit_client(cptr, acptr/sptr, &me, ...) when WE decide this one should
367 * In general: No generated SQUIT or QUIT should be sent to source link
368 * sptr->from. And CPTR_KILLED should be returned if cptr got removed (too).
372 int exit_client(struct Client *cptr, /* Connection being handled by
373 read_message right now */
374 struct Client* victim, /* Client being killed */
375 struct Client* killer, /* The client that made the decision
376 to remove this one, never NULL */
377 const char* comment) /* Reason for the exit */
379 struct Client* acptr = 0;
384 char comment1[HOSTLEN + HOSTLEN + 2];
386 if (MyConnect(victim)) {
387 victim->flags |= FLAGS_CLOSING;
390 on_for = CurrentTime - victim->firsttime;
391 #if defined(USE_SYSLOG) && defined(SYSLOG_USERS)
393 ircd_log(L_TRACE, "%s (%3d:%02d:%02d): %s@%s (%s)\n",
394 myctime(victim->firsttime), on_for / 3600, (on_for % 3600) / 60,
395 on_for % 60, victim->user->username, victim->sockhost, victim->name);
398 write_log(FNAME_USERLOG,
399 "%s (%3d:%02d:%02d): %s@%s [%s]\n",
400 myctime(victim->firsttime),
401 on_for / 3600, (on_for % 3600) / 60,
403 victim->user->username, victim->user->host, victim->username);
406 if (victim != killer->from /* The source knows already */
407 && IsClient(victim)) /* Not a Ping struct or Log file */
409 if (IsServer(victim) || IsHandshake(victim))
410 sendcmdto_one(killer, CMD_SQUIT, victim, "%s 0 :%s", me.name, comment);
411 else if (!IsConnecting(victim)) {
413 sendrawto_one(victim, MSG_ERROR " :Closing Link: %s by %s (%s)",
414 victim->name, killer->name, comment);
416 if ((IsServer(victim) || IsHandshake(victim) || IsConnecting(victim)) &&
417 (killer == &me || (IsServer(killer) &&
418 (strncmp(comment, "Leaf-only link", 14) ||
419 strncmp(comment, "Non-Hub link", 12)))))
422 * Note: check user == user needed to make sure we have the same
425 if (victim->serv->user && *victim->serv->by &&
426 (acptr = findNUser(victim->serv->by))) {
427 if (acptr->user == victim->serv->user) {
428 sendcmdto_one(&me, CMD_NOTICE, acptr,
429 "%C :Link with %s cancelled: %s", acptr,
430 victim->name, comment);
434 * not right client, set by to empty string
437 *victim->serv->by = '\0';
441 sendto_opmask_butone(acptr, SNO_OLDSNO, "Link with %s cancelled: %s",
442 victim->name, comment);
446 * Close the Client connection first.
448 close_connection(victim);
451 if (IsServer(victim))
453 strcpy(comment1, victim->serv->up->name);
454 strcat(comment1, " ");
455 strcat(comment1, victim->name);
457 sendto_opmask_butone(killer, SNO_OLDSNO, "%s SQUIT by %s [%s]:",
458 (killer->user->server == victim ||
459 killer->user->server == victim->serv->up) ?
461 get_client_name(killer, HIDE_IP),
462 killer->user->server->name);
463 else if (killer != &me && victim->serv->up != killer)
464 sendto_opmask_butone(0, SNO_OLDSNO, "Received SQUIT %s from %s :",
465 victim->name, IsServer(killer) ? killer->name :
466 get_client_name(killer, HIDE_IP));
467 sendto_opmask_butone(0, SNO_NETWORK, "Net break: %s (%s)", comment1,
472 * First generate the needed protocol for the other server links
475 for (dlp = me.serv->down; dlp; dlp = dlp->next) {
476 if (dlp->value.cptr != killer->from && dlp->value.cptr != victim) {
477 if (IsServer(victim))
478 sendcmdto_one(killer, CMD_SQUIT, dlp->value.cptr, "%s %Tu :%s",
479 victim->name, victim->serv->timestamp, comment);
480 else if (IsUser(victim) && 0 == (victim->flags & FLAGS_KILLED))
481 sendcmdto_one(victim, CMD_QUIT, dlp->value.cptr, ":%s", comment);
484 /* Then remove the client structures */
485 if (IsServer(victim))
486 exit_downlinks(victim, killer, comment1);
487 exit_one_client(victim, comment);
490 * cptr can only have been killed if it was cptr itself that got killed here,
491 * because cptr can never have been a dependant of victim --Run
493 return (cptr == victim) ? CPTR_KILLED : 0;
497 * Exit client with formatted message, added 25-9-94 by Run
499 int vexit_client_msg(struct Client *cptr, struct Client *bcptr, struct Client *sptr,
500 const char *pattern, va_list vl)
503 vsprintf_irc(msgbuf, pattern, vl);
504 return exit_client(cptr, bcptr, sptr, msgbuf);
507 int exit_client_msg(struct Client *cptr, struct Client *bcptr,
508 struct Client *sptr, const char *pattern, ...)
513 va_start(vl, pattern);
514 vsprintf_irc(msgbuf, pattern, vl);
517 return exit_client(cptr, bcptr, sptr, msgbuf);
522 memset(&ircst, 0, sizeof(ircst));
525 void tstats(struct Client *cptr, char *name)
527 struct Client *acptr;
529 struct ServerStatistics *sp;
530 struct ServerStatistics tmp;
533 memcpy(sp, ServerStats, sizeof(struct ServerStatistics));
534 for (i = 0; i < MAXCONNECTIONS; i++)
536 if (!(acptr = LocalClientArray[i]))
540 sp->is_sbs += acptr->sendB;
541 sp->is_sbr += acptr->receiveB;
542 sp->is_sks += acptr->sendK;
543 sp->is_skr += acptr->receiveK;
544 sp->is_sti += CurrentTime - acptr->firsttime;
546 if (sp->is_sbs > 1023)
548 sp->is_sks += (sp->is_sbs >> 10);
551 if (sp->is_sbr > 1023)
553 sp->is_skr += (sp->is_sbr >> 10);
557 else if (IsUser(acptr))
559 sp->is_cbs += acptr->sendB;
560 sp->is_cbr += acptr->receiveB;
561 sp->is_cks += acptr->sendK;
562 sp->is_ckr += acptr->receiveK;
563 sp->is_cti += CurrentTime - acptr->firsttime;
565 if (sp->is_cbs > 1023)
567 sp->is_cks += (sp->is_cbs >> 10);
570 if (sp->is_cbr > 1023)
572 sp->is_ckr += (sp->is_cbr >> 10);
576 else if (IsUnknown(acptr))
580 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":accepts %u refused %u",
581 sp->is_ac, sp->is_ref);
582 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
583 ":unknown commands %u prefixes %u", sp->is_unco, sp->is_unpf);
584 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
585 ":nick collisions %u unknown closes %u", sp->is_kill, sp->is_ni);
586 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
587 ":wrong direction %u empty %u", sp->is_wrdi, sp->is_empt);
588 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
589 ":numerics seen %u mode fakes %u", sp->is_num, sp->is_fake);
590 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
591 ":auth successes %u fails %u", sp->is_asuc, sp->is_abad);
592 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":local connections %u",
594 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":Client server");
595 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":connected %u %u",
596 sp->is_cl, sp->is_sv);
597 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":bytes sent %u.%uK %u.%uK",
598 sp->is_cks, sp->is_cbs, sp->is_sks, sp->is_sbs);
599 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":bytes recv %u.%uK %u.%uK",
600 sp->is_ckr, sp->is_cbr, sp->is_skr, sp->is_sbr);
601 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":time connected %Tu %Tu",
602 sp->is_cti, sp->is_sti);