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_string.h"
44 #include "querycmds.h"
51 #include "sprintf_irc.h"
67 static char *months[] = {
68 "January", "February", "March", "April",
69 "May", "June", "July", "August",
70 "September", "October", "November", "December"
73 static char *weekdays[] = {
74 "Sunday", "Monday", "Tuesday", "Wednesday",
75 "Thursday", "Friday", "Saturday"
81 static struct ServerStatistics ircst;
82 struct ServerStatistics* ServerStats = &ircst;
84 char *date(time_t clock)
86 static char buf[80], plus;
94 memcpy(&gmbuf, gm, sizeof(gmbuf));
96 lt = localtime(&clock);
98 minswest = (gm->tm_hour - lt->tm_hour) * 60 + (gm->tm_min - lt->tm_min);
99 if (lt->tm_yday != gm->tm_yday)
101 if ((lt->tm_yday > gm->tm_yday && lt->tm_year == gm->tm_year) ||
102 (lt->tm_yday < gm->tm_yday && lt->tm_year != gm->tm_year))
108 plus = (minswest > 0) ? '-' : '+';
110 minswest = -minswest;
112 sprintf(buf, "%s %s %d %d -- %02d:%02d %c%02d:%02d",
113 weekdays[lt->tm_wday], months[lt->tm_mon], lt->tm_mday,
114 1900 + lt->tm_year, lt->tm_hour, lt->tm_min,
115 plus, minswest / 60, minswest % 60);
123 * This is like standard ctime()-function, but it zaps away
124 * the newline from the end of that string. Also, it takes
125 * the time value as parameter, instead of pointer to it.
126 * Note that it is necessary to copy the string to alternate
127 * buffer (who knows how ctime() implements it, maybe it statically
128 * has newline there and never 'refreshes' it -- zapping that
129 * might break things in other places...)
131 char *myctime(time_t value)
136 strcpy(buf, ctime(&value));
137 if ((p = strchr(buf, '\n')) != NULL)
145 * Return the name of the client for various tracking and
146 * admin purposes. The main purpose of this function is to
147 * return the "socket host" name of the client, if that
148 * differs from the advertised name (other than case).
149 * But, this can be used to any client structure.
152 * "name[user@ip#.port]" if 'showip' is true;
153 * "name" if 'showip' is false.
156 * Watch out the allocation of "nbuf", if either sptr->name
157 * or sptr->sockhost gets changed into pointers instead of
158 * directly allocated within the structure...
161 * Function return either a pointer to the structure (sptr) or
162 * to internal buffer (nbuf). *NEVER* use the returned pointer
163 * to modify what it points!!!
165 const char* get_client_name(const struct Client* sptr, int showip)
167 static char nbuf[HOSTLEN * 2 + USERLEN + 5];
169 if (MyConnect(sptr)) {
171 sprintf_irc(nbuf, "%s[%s@%s]", cli_name(sptr),
172 (IsIdented(sptr)) ? cli_username(sptr) : "", cli_sock_ip(sptr));
174 return cli_name(sptr);
177 return cli_name(sptr);
180 const char *get_client_host(const struct Client *cptr)
182 return get_client_name(cptr, HIDE_IP);
186 * Form sockhost such that if the host is of form user@host, only the host
189 void get_sockhost(struct Client *cptr, char *host)
192 if ((s = strchr(host, '@')))
196 ircd_strncpy(cli_sockhost(cptr), s, HOSTLEN);
200 * Exit one client, local or remote. Assuming for local client that
201 * all dependants already have been removed, and socket is closed.
203 * Rewritten by Run - 24 sept 94
205 * bcptr : client being (s)quitted
206 * sptr : The source (prefix) of the QUIT or SQUIT
210 static void exit_one_client(struct Client* bcptr, const char* comment)
214 if (cli_serv(bcptr) && cli_serv(bcptr)->client_list) /* Was SetServerYXX called ? */
215 ClearServerYXX(bcptr); /* Removes server from server_list[] */
218 * clear out uping requests
221 uping_cancel(bcptr, 0);
223 * Stop a running /LIST clean
225 if (MyUser(bcptr) && cli_listing(bcptr)) {
226 cli_listing(bcptr)->chptr->mode.mode &= ~MODE_LISTED;
227 MyFree(cli_listing(bcptr));
228 cli_listing(bcptr) = NULL;
231 * If a person is on a channel, send a QUIT notice
232 * to every client (person) on the same channel (so
233 * that the client can show the "**signoff" message).
234 * (Note: The notice is to the local clients *only*)
236 sendcmdto_common_channels(bcptr, CMD_QUIT, ":%s", comment);
238 remove_user_from_all_channels(bcptr);
240 /* Clean up invitefield */
241 while ((lp = cli_user(bcptr)->invited))
242 del_invite(bcptr, lp->value.chptr);
244 /* Clean up silencefield */
245 while ((lp = cli_user(bcptr)->silence))
246 del_silence(bcptr, lp->value.cp);
248 if (IsInvisible(bcptr))
249 --UserStats.inv_clients;
252 if (MyConnect(bcptr))
253 Count_clientdisconnects(bcptr, UserStats);
255 Count_remoteclientquits(UserStats, bcptr);
258 else if (IsServer(bcptr))
260 /* Remove downlink list node of uplink */
261 remove_dlink(&(cli_serv(cli_serv(bcptr)->up))->down, cli_serv(bcptr)->updown);
262 cli_serv(bcptr)->updown = 0;
264 if (MyConnect(bcptr))
265 Count_serverdisconnects(UserStats);
267 Count_remoteserverquits(UserStats);
269 else if (IsMe(bcptr))
271 sendto_opmask_butone(0, SNO_OLDSNO, "ERROR: tried to exit me! : %s",
273 return; /* ...must *never* exit self! */
275 else if (IsUnknown(bcptr) || IsConnecting(bcptr) || IsHandshake(bcptr))
276 Count_unknowndisconnects(UserStats);
281 if (IsIPChecked(bcptr))
282 IPcheck_disconnect(bcptr);
285 * Remove from serv->client_list
286 * NOTE: user is *always* NULL if this is a server
288 if (cli_user(bcptr)) {
289 assert(!IsServer(bcptr));
290 /* bcptr->user->server->serv->client_list[IndexYXX(bcptr)] = NULL; */
291 RemoveYXXClient(cli_user(bcptr)->server, cli_yxx(bcptr));
294 /* Remove bcptr from the client list */
296 if (hRemClient(bcptr) != 0)
297 Debug((DEBUG_ERROR, "%p !in tab %s[%s] %p %p %p %d %d %p",
298 bcptr, cli_name(bcptr), cli_from(bcptr) ? cli_sockhost(cli_from(bcptr)) : "??host",
299 cli_from(bcptr), cli_next(bcptr), cli_prev(bcptr), cli_fd(bcptr),
300 cli_status(bcptr), cli_user(bcptr)));
304 remove_client_from_list(bcptr);
308 * exit_downlinks - added by Run 25-9-94
310 * Removes all clients and downlinks (+clients) of any server
311 * QUITs are generated and sent to local users.
313 * cptr : server that must have all dependents removed
314 * sptr : source who thought that this was a good idea
315 * comment : comment sent as sign off message to local clients
317 static void exit_downlinks(struct Client *cptr, struct Client *sptr, char *comment)
319 struct Client *acptr;
322 struct Client **acptrp;
325 /* Run over all its downlinks */
326 for (lp = cli_serv(cptr)->down; lp; lp = next)
329 acptr = lp->value.cptr;
330 /* Remove the downlinks and client of the downlink */
331 exit_downlinks(acptr, sptr, comment);
332 /* Remove the downlink itself */
333 exit_one_client(acptr, cli_name(&me));
335 /* Remove all clients of this server */
336 acptrp = cli_serv(cptr)->client_list;
337 for (i = 0; i <= cli_serv(cptr)->nn_mask; ++acptrp, ++i) {
339 exit_one_client(*acptrp, comment);
344 * exit_client, rewritten 25-9-94 by Run
346 * This function exits a client of *any* type (user, server, etc)
347 * from this server. Also, this generates all necessary prototol
348 * messages that this exit may cause.
350 * This function implicitly exits all other clients depending on
353 * For convenience, this function returns a suitable value for
354 * m_funtion return value:
356 * CPTR_KILLED if (cptr == bcptr)
357 * 0 if (cptr != bcptr)
359 * This function can be called in two ways:
360 * 1) From before or in parse(), exitting the 'cptr', in which case it was
361 * invoked as exit_client(cptr, cptr, &me,...), causing it to always
362 * return CPTR_KILLED.
363 * 2) Via parse from a m_function call, in which case it was invoked as
364 * exit_client(cptr, acptr, sptr, ...). Here 'sptr' is known; the client
365 * that generated the message in a way that we can assume he already
366 * did remove acptr from memory himself (or in other cases we don't mind
367 * because he will be delinked.) Or invoked as:
368 * exit_client(cptr, acptr/sptr, &me, ...) when WE decide this one should
370 * In general: No generated SQUIT or QUIT should be sent to source link
371 * sptr->from. And CPTR_KILLED should be returned if cptr got removed (too).
375 int exit_client(struct Client *cptr, /* Connection being handled by
376 read_message right now */
377 struct Client* victim, /* Client being killed */
378 struct Client* killer, /* The client that made the decision
379 to remove this one, never NULL */
380 const char* comment) /* Reason for the exit */
382 struct Client* acptr = 0;
386 char comment1[HOSTLEN + HOSTLEN + 2];
388 if (MyConnect(victim)) {
389 cli_flags(victim) |= FLAGS_CLOSING;
392 on_for = CurrentTime - cli_firsttime(victim);
395 log_write(LS_USER, L_TRACE, 0, "%s (%3d:%02d:%02d): %s@%s (%s)",
396 myctime(cli_firsttime(victim)), on_for / 3600,
397 (on_for % 3600) / 60, on_for % 60, cli_user(victim)->username,
398 cli_sockhost(victim), cli_name(victim));
400 if (victim != cli_from(killer) /* The source knows already */
401 && IsClient(victim)) /* Not a Ping struct or Log file */
403 if (IsServer(victim) || IsHandshake(victim))
404 sendcmdto_one(killer, CMD_SQUIT, victim, "%s 0 :%s", cli_name(&me), comment);
405 else if (!IsConnecting(victim)) {
407 sendrawto_one(victim, MSG_ERROR " :Closing Link: %s by %s (%s)",
408 cli_name(victim), cli_name(killer), comment);
410 if ((IsServer(victim) || IsHandshake(victim) || IsConnecting(victim)) &&
411 (killer == &me || (IsServer(killer) &&
412 (strncmp(comment, "Leaf-only link", 14) ||
413 strncmp(comment, "Non-Hub link", 12)))))
416 * Note: check user == user needed to make sure we have the same
419 if (cli_serv(victim)->user && *(cli_serv(victim))->by &&
420 (acptr = findNUser(cli_serv(victim)->by))) {
421 if (cli_user(acptr) == cli_serv(victim)->user) {
422 sendcmdto_one(&me, CMD_NOTICE, acptr,
423 "%C :Link with %s cancelled: %s", acptr,
424 cli_name(victim), comment);
428 * not right client, set by to empty string
431 *(cli_serv(victim))->by = '\0';
435 sendto_opmask_butone(acptr, SNO_OLDSNO, "Link with %s cancelled: %s",
436 cli_name(victim), comment);
440 * Close the Client connection first.
442 close_connection(victim);
445 if (IsServer(victim))
447 #ifdef HEAD_IN_SAND_NETSPLIT
448 strcpy(comment1, "*.net *.split");
450 strcpy(comment1, cli_name(cli_serv(victim)->up));
451 strcat(comment1, " ");
452 strcat(comment1, cli_name(victim));
455 sendto_opmask_butone(killer, SNO_OLDSNO, "%s SQUIT by %s [%s]:",
456 (cli_user(killer)->server == victim ||
457 cli_user(killer)->server == cli_serv(victim)->up) ?
459 get_client_name(killer, HIDE_IP),
460 cli_name(cli_user(killer)->server));
461 else if (killer != &me && cli_serv(victim)->up != killer)
462 sendto_opmask_butone(0, SNO_OLDSNO, "Received SQUIT %s from %s :",
463 cli_name(victim), IsServer(killer) ? cli_name(killer) :
464 get_client_name(killer, HIDE_IP));
465 sendto_opmask_butone(0, SNO_NETWORK, "Net break: %C %C (%s)",
466 cli_serv(victim)->up, victim, comment);
470 * First generate the needed protocol for the other server links
473 for (dlp = cli_serv(&me)->down; dlp; dlp = dlp->next) {
474 if (dlp->value.cptr != cli_from(killer) && dlp->value.cptr != victim) {
475 if (IsServer(victim))
476 sendcmdto_one(killer, CMD_SQUIT, dlp->value.cptr, "%s %Tu :%s",
477 cli_name(victim), cli_serv(victim)->timestamp, comment);
478 else if (IsUser(victim) && 0 == (cli_flags(victim) & FLAGS_KILLED))
479 sendcmdto_one(victim, CMD_QUIT, dlp->value.cptr, ":%s", comment);
482 /* Then remove the client structures */
483 if (IsServer(victim))
484 exit_downlinks(victim, killer, comment1);
485 exit_one_client(victim, comment);
488 * cptr can only have been killed if it was cptr itself that got killed here,
489 * because cptr can never have been a dependant of victim --Run
491 return (cptr == victim) ? CPTR_KILLED : 0;
495 * Exit client with formatted message, added 25-9-94 by Run
497 int vexit_client_msg(struct Client *cptr, struct Client *bcptr, struct Client *sptr,
498 const char *pattern, va_list vl)
501 vsprintf_irc(msgbuf, pattern, vl);
502 return exit_client(cptr, bcptr, sptr, msgbuf);
505 int exit_client_msg(struct Client *cptr, struct Client *bcptr,
506 struct Client *sptr, const char *pattern, ...)
511 va_start(vl, pattern);
512 vsprintf_irc(msgbuf, pattern, vl);
515 return exit_client(cptr, bcptr, sptr, msgbuf);
520 memset(&ircst, 0, sizeof(ircst));
523 void tstats(struct Client *cptr, char *name)
525 struct Client *acptr;
527 struct ServerStatistics *sp;
528 struct ServerStatistics tmp;
531 memcpy(sp, ServerStats, sizeof(struct ServerStatistics));
532 for (i = 0; i < MAXCONNECTIONS; i++)
534 if (!(acptr = LocalClientArray[i]))
538 sp->is_sbs += cli_sendB(acptr);
539 sp->is_sbr += cli_receiveB(acptr);
540 sp->is_sks += cli_sendK(acptr);
541 sp->is_skr += cli_receiveK(acptr);
542 sp->is_sti += CurrentTime - cli_firsttime(acptr);
544 if (sp->is_sbs > 1023)
546 sp->is_sks += (sp->is_sbs >> 10);
549 if (sp->is_sbr > 1023)
551 sp->is_skr += (sp->is_sbr >> 10);
555 else if (IsUser(acptr))
557 sp->is_cbs += cli_sendB(acptr);
558 sp->is_cbr += cli_receiveB(acptr);
559 sp->is_cks += cli_sendK(acptr);
560 sp->is_ckr += cli_receiveK(acptr);
561 sp->is_cti += CurrentTime - cli_firsttime(acptr);
563 if (sp->is_cbs > 1023)
565 sp->is_cks += (sp->is_cbs >> 10);
568 if (sp->is_cbr > 1023)
570 sp->is_ckr += (sp->is_cbr >> 10);
574 else if (IsUnknown(acptr))
578 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":accepts %u refused %u",
579 sp->is_ac, sp->is_ref);
580 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
581 ":unknown commands %u prefixes %u", sp->is_unco, sp->is_unpf);
582 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
583 ":nick collisions %u unknown closes %u", sp->is_kill, sp->is_ni);
584 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
585 ":wrong direction %u empty %u", sp->is_wrdi, sp->is_empt);
586 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
587 ":numerics seen %u mode fakes %u", sp->is_num, sp->is_fake);
588 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG,
589 ":auth successes %u fails %u", sp->is_asuc, sp->is_abad);
590 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":local connections %u",
592 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":Client server");
593 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":connected %u %u",
594 sp->is_cl, sp->is_sv);
595 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":bytes sent %u.%uK %u.%uK",
596 sp->is_cks, sp->is_cbs, sp->is_sks, sp->is_sbs);
597 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":bytes recv %u.%uK %u.%uK",
598 sp->is_ckr, sp->is_cbr, sp->is_skr, sp->is_sbr);
599 send_reply(cptr, SND_EXPLICIT | RPL_STATSDEBUG, ":time connected %Tu %Tu",
600 sp->is_cti, sp->is_sti);