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Contents of /eggdrop1.9/src/main.c

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Revision 1.136 - (show annotations) (download) (as text)
Sun Feb 16 11:15:06 2003 UTC (16 years, 6 months ago) by stdarg
Branch: MAIN
Changes since 1.135: +2 -3 lines
File MIME type: text/x-chdr
* Variables can be linked to config now (auto-update).
* config_str bind for changes to config strings

1 /*
2 * main.c --
3 *
4 * core event handling
5 * signal handling
6 * command line arguments
7 */
8 /*
9 * Copyright (C) 1997 Robey Pointer
10 * Copyright (C) 1999, 2000, 2001, 2002, 2003 Eggheads Development Team
11 *
12 * This program is free software; you can redistribute it and/or
13 * modify it under the terms of the GNU General Public License
14 * as published by the Free Software Foundation; either version 2
15 * of the License, or (at your option) any later version.
16 *
17 * This program is distributed in the hope that it will be useful,
18 * but WITHOUT ANY WARRANTY; without even the implied warranty of
19 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
20 * GNU General Public License for more details.
21 *
22 * You should have received a copy of the GNU General Public License
23 * along with this program; if not, write to the Free Software
24 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
25 */
26 /*
27 * The author (Robey Pointer) can be reached at: robey@netcom.com
28 * NOTE: Robey is no longer working on this code, there is a discussion
29 * list available at eggheads@eggheads.org.
30 */
31
32 #ifndef lint
33 static const char rcsid[] = "$Id: main.c,v 1.135 2003/02/15 05:04:58 wcc Exp $";
34 #endif
35
36 #include <eggdrop/eggdrop.h>
37 #include "main.h"
38 #include "core_config.h"
39 #include <fcntl.h>
40 #ifdef TIME_WITH_SYS_TIME
41 # include <sys/time.h>
42 # include <time.h>
43 #else
44 # ifdef HAVE_SYS_TIME_H
45 # include <sys/time.h>
46 # else
47 # include <time.h>
48 # endif
49 #endif
50 #include <errno.h>
51 #include <signal.h>
52 #include <netdb.h>
53 #include <setjmp.h>
54 #include "users.h" /* check_expired_ignores,
55 get_user_by_handle */
56 #include "chanprog.h" /* tell_verbose_status,
57 chanprog, rehash */
58 #include "net.h" /* killsock, setsock,
59 dequeue_sockets, sockgets */
60 #include "userrec.h" /* write_userfile, count_users */
61 #include <locale.h>
62
63 #ifdef STOP_UAC /* osf/1 complains a lot */
64 #include <sys/sysinfo.h>
65 #define UAC_NOPRINT 0x00000001 /* Don't report unaligned fixups */
66 #endif
67 /* Some systems have a working sys/wait.h even though configure will
68 * decide it's not bsd compatable. Oh well.
69 */
70
71 #include "chan.h"
72 #include "modules.h"
73 #include "bg.h"
74 #include "core_binds.h"
75 #include "logfile.h"
76 #include "misc.h"
77 #include "traffic.h"
78 #include "dccutil.h" /* dprintf_eggdrop, new_dcc,
79 dcc_chatter, dcc_remove_lost,
80 lostdcc */
81
82 #include "lib/adns/adns.h"
83
84 #ifdef CYGWIN_HACKS
85 #include <windows.h>
86 #endif
87
88 #ifndef _POSIX_SOURCE
89 /* Solaris needs this */
90 #define _POSIX_SOURCE 1
91 #endif
92
93 extern char userfile[], myname[];
94 extern int dcc_total, conmask, cache_hit, cache_miss;
95 extern struct dcc_t *dcc;
96 extern struct userrec *userlist;
97 extern struct chanset_t *chanset;
98 extern jmp_buf alarmret;
99
100 #ifndef MAKING_MODS
101 extern struct dcc_table DCC_CHAT;
102 #endif /* MAKING_MODS */
103
104 /*
105 * Please use the PATCH macro instead of directly altering the version
106 * string from now on (it makes it much easier to maintain patches).
107 * Also please read the README file regarding your rights to distribute
108 * modified versions of this bot.
109 */
110
111 char egg_version[1024] = VERSION;
112 int egg_numver = VERSION_NUM;
113
114 eggdrop_t *egg = NULL; /* Eggdrop's context */
115
116 char notify_new[121] = ""; /* Person to send a note to for new users */
117 int default_flags = 0; /* Default user flags and */
118 int default_uflags = 0; /* Default userdefinied flags for people
119 who say 'hello' or for .adduser */
120
121 int backgrd = 1; /* Run in the background? */
122 int con_chan = 0; /* Foreground: constantly display channel
123 stats? */
124 int term_z = 0; /* Foreground: use the terminal as a party
125 line? */
126 char configfile[121] = "config.xml"; /* Name of the config file */
127 char helpdir[121] = "help/"; /* Directory of help files (if used) */
128 char textdir[121] = "text/"; /* Directory for text files that get dumped */
129 time_t online_since; /* Unix-time that the bot loaded up */
130 int make_userfile = 0; /* Using bot in make-userfile mode? (first
131 user to 'hello' becomes master) */
132 char owner[121] = ""; /* Permanent owner(s) of the bot */
133 char pid_file[120]; /* Name of the file for the pid to be
134 stored in */
135 int save_users_at = 0; /* How many minutes past the hour to
136 save the userfile? */
137 int notify_users_at = 0; /* How many minutes past the hour to
138 notify users of notes? */
139 char version[81]; /* Version info (long form) */
140 char ver[41]; /* Version info (short form) */
141 char egg_xtra[2048]; /* Patch info */
142 int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
143 int do_restart = 0; /* .restart has been called, restart asap */
144 int die_on_sighup = 0; /* die if bot receives SIGHUP */
145 int die_on_sigterm = 1; /* die if bot receives SIGTERM */
146 int resolve_timeout = 15; /* hostname/address lookup timeout */
147 char quit_msg[1024]; /* quit message */
148 time_t now; /* duh, now :) */
149 egg_timeval_t egg_timeval_now; /* Same thing, but seconds and microseconds. */
150
151 void fatal(const char *s, int recoverable)
152 {
153 int i;
154
155 putlog(LOG_MISC, "*", "* %s", s);
156 flushlogs();
157 for (i = 0; i < dcc_total; i++)
158 if (dcc[i].sock >= 0)
159 killsock(dcc[i].sock);
160 unlink(pid_file);
161 if (!recoverable) {
162 bg_send_quit(BG_ABORT);
163 exit(1);
164 }
165 }
166
167 static void check_expired_dcc()
168 {
169 int i;
170
171 for (i = 0; i < dcc_total; i++)
172 if (dcc[i].type && dcc[i].type->timeout_val &&
173 ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
174 if (dcc[i].type->timeout)
175 dcc[i].type->timeout(i);
176 else if (dcc[i].type->eof)
177 dcc[i].type->eof(i);
178 else
179 continue;
180 /* Only timeout 1 socket per cycle, too risky for more */
181 return;
182 }
183 }
184
185 static void got_bus(int z)
186 {
187 fatal("BUS ERROR -- CRASHING!", 1);
188 #ifdef SA_RESETHAND
189 kill(getpid(), SIGBUS);
190 #else
191 bg_send_quit(BG_ABORT);
192 exit(1);
193 #endif
194 }
195
196 static void got_segv(int z)
197 {
198 fatal("SEGMENT VIOLATION -- CRASHING!", 1);
199 #ifdef SA_RESETHAND
200 kill(getpid(), SIGSEGV);
201 #else
202 bg_send_quit(BG_ABORT);
203 exit(1);
204 #endif
205 }
206
207 static void got_fpe(int z)
208 {
209 fatal("FLOATING POINT ERROR -- CRASHING!", 0);
210 }
211
212 static void got_term(int z)
213 {
214 write_userfile(-1);
215 check_bind_event("sigterm");
216 if (die_on_sigterm) {
217 fatal("TERMINATE SIGNAL -- SIGNING OFF", 0);
218 } else {
219 putlog(LOG_MISC, "*", "RECEIVED TERMINATE SIGNAL (IGNORING)");
220 }
221 }
222
223 static void got_quit(int z)
224 {
225 check_bind_event("sigquit");
226 putlog(LOG_MISC, "*", "RECEIVED QUIT SIGNAL (IGNORING)");
227 return;
228 }
229
230 static void got_hup(int z)
231 {
232 write_userfile(-1);
233 check_bind_event("sighup");
234 if (die_on_sighup) {
235 fatal("HANGUP SIGNAL -- SIGNING OFF", 0);
236 } else
237 putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
238 do_restart = -2;
239 return;
240 }
241
242 /* A call to resolver (gethostbyname, etc) timed out
243 */
244 static void got_alarm(int z)
245 {
246 longjmp(alarmret, 1);
247
248 /* -Never reached- */
249 }
250
251 /* Got ILL signal
252 */
253 static void got_ill(int z)
254 {
255 check_bind_event("sigill");
256 }
257
258
259 static void print_version(void)
260 {
261 char x[1024], *z = x;
262
263 strlcpy(x, egg_version, sizeof x);
264 newsplit(&z);
265 newsplit(&z);
266 printf("%s\n", version);
267 if (z[0])
268 printf(" (patches: %s)\n", z);
269 }
270
271 static void print_help(void)
272 {
273 print_version ();
274 printf("\n\
275 Usage: %s [OPTIONS]... [FILE]\n", PACKAGE);
276 printf(_("\n\
277 -h, --help Print help and exit\n\
278 -v, --version Print version and exit\n\
279 -n, --foreground Don't go into the background (default=off)\n\
280 -c --channel-stats (with -n) Display channel stats every 10 seconds\n\
281 -t --terminal (with -n) Use terminal to simulate dcc-chat\n\
282 -m --make-userfile Userfile creation mode\n\
283 FILE optional config filename (default 'config.xml')\n"));
284 printf("\n");
285 }
286
287 static void do_args(int argc, char * const *argv)
288 {
289 int c;
290
291 optarg = 0;
292 optind = 1;
293 opterr = 1;
294 optopt = '?';
295
296 while (1) {
297 int option_index = 0;
298 static struct option long_options[] = {
299 { "help", 0, NULL, 'h' },
300 { "version", 0, NULL, 'v' },
301 { "load-module", 1, NULL, 'p' },
302 { "foreground", 0, NULL, 'n' },
303 { "channel-stats", 0, NULL, 'c' },
304 { "terminal", 0, NULL, 't' },
305 { "make-userfile", 0, NULL, 'm' },
306 { NULL, 0, NULL, 0 }
307 };
308
309 c = getopt_long (argc, argv, "hvp:nctm", long_options, &option_index);
310
311 if (c == -1) break;
312
313 switch (c) {
314 case 'n':
315 backgrd = 0;
316 break;
317
318 case 'c':
319 con_chan = 1;
320 term_z = 0;
321 break;
322
323 case 't':
324 con_chan = 0;
325 term_z = 1;
326 break;
327
328 case 'm':
329 make_userfile = 1;
330 break;
331
332 case 'v':
333 print_version();
334 bg_send_quit(BG_ABORT);
335 exit(0);
336 break; /* this should never be reached */
337
338 case 'h':
339 print_help();
340 bg_send_quit(BG_ABORT);
341 exit(0);
342 break; /* this should never be reached */
343
344 case 0: /* Long option with no short option */
345 case '?': /* Invalid option. */
346 /* getopt_long() already printed an error message. */
347 bg_send_quit(BG_ABORT);
348 exit(1);
349
350 default: /* bug: option not considered. */
351 fprintf (stderr, "%s: option unknown: %c\n", PACKAGE, c);
352 bg_send_quit(BG_ABORT);
353 exit(1);
354 break; /* this should never be reached */
355 }
356 }
357 if (optind < argc)
358 strlcpy(configfile, argv[optind], sizeof configfile);
359 }
360
361 /* Timer info */
362 static int lastmin = 99;
363 static struct tm nowtm;
364
365 /* Called once a second.
366 */
367 static void core_secondly()
368 {
369 static int cnt = 0;
370 int miltime;
371
372 call_hook(HOOK_SECONDLY); /* Will be removed later */
373 cnt++;
374 if (cnt >= 10) { /* Every 10 seconds */
375 cnt = 0;
376 check_expired_dcc();
377 if (con_chan && !backgrd) {
378 dprintf(DP_STDOUT, "\033[2J\033[1;1H");
379 //tell_verbose_status(DP_STDOUT);
380 do_module_report(DP_STDOUT, 0, "server");
381 do_module_report(DP_STDOUT, 0, "channels");
382 }
383 }
384 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
385 if (nowtm.tm_min != lastmin) {
386 int i = 0;
387
388 /* Once a minute */
389 lastmin = (lastmin + 1) % 60;
390 call_hook(HOOK_MINUTELY);
391 check_expired_ignores();
392 /* In case for some reason more than 1 min has passed: */
393 while (nowtm.tm_min != lastmin) {
394 /* Timer drift, dammit */
395 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
396 i++;
397 lastmin = (lastmin + 1) % 60;
398 call_hook(HOOK_MINUTELY);
399 }
400 if (i > 1)
401 putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
402 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
403 if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
404 call_hook(HOOK_5MINUTELY);
405 if (!miltime) { /* At midnight */
406 char s[25];
407
408 strlcpy(s, ctime(&now), sizeof s);
409 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
410 call_hook(HOOK_BACKUP);
411 call_hook(HOOK_DAILY);
412 }
413 }
414 if (nowtm.tm_min == notify_users_at)
415 call_hook(HOOK_HOURLY);
416 }
417 }
418
419 static void core_minutely()
420 {
421 check_bind_time(&nowtm);
422 }
423
424 static void core_hourly()
425 {
426 write_userfile(-1);
427 }
428
429 static void event_rehash()
430 {
431 check_bind_event("rehash");
432 }
433
434 static void event_prerehash()
435 {
436 check_bind_event("prerehash");
437 }
438
439 static void event_save()
440 {
441 check_bind_event("save");
442 }
443
444 static void event_logfile()
445 {
446 check_bind_event("logfile");
447 }
448
449 static void event_loaded()
450 {
451 check_bind_event("loaded");
452 }
453
454 void kill_tcl();
455 extern module_entry *module_list;
456
457 int init_userent(), init_net(), init_tcl(int, char **);
458 void core_party_init();
459 void core_config_init();
460 void telnet_init();
461 void dns_init();
462 void binds_init();
463 void dcc_init();
464
465 void patch(const char *str)
466 {
467 char *p = strchr(egg_version, '+');
468
469 if (!p)
470 p = &egg_version[strlen(egg_version)];
471 sprintf(p, "+%s", str);
472 egg_numver++;
473 sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
474 }
475
476 /*
477 static inline void garbage_collect(void)
478 {
479 static u_8bit_t run_cnt = 0;
480
481 if (run_cnt == 3)
482 garbage_collect_tclhash();
483 else
484 run_cnt++;
485 }
486 */
487
488 int main(int argc, char **argv)
489 {
490 int xx, i;
491 char buf[520], s[25];
492 FILE *f;
493 struct sigaction sv;
494 struct chanset_t *chan;
495 egg_timeval_t howlong;
496 int timeout;
497 void *config_root;
498 char *modname, *scriptname;
499
500 #ifdef DEBUG
501 /* Make sure it can write core, if you make debug. Else it's pretty
502 * useless (dw)
503 */
504 {
505 #include <sys/resource.h>
506 struct rlimit cdlim;
507
508 cdlim.rlim_cur = RLIM_INFINITY;
509 cdlim.rlim_max = RLIM_INFINITY;
510 setrlimit(RLIMIT_CORE, &cdlim);
511 }
512 #endif
513
514 #ifdef ENABLE_NLS
515 setlocale(LC_MESSAGES, "");
516 bindtextdomain(PACKAGE, LOCALEDIR);
517 textdomain(PACKAGE);
518 #endif
519
520 #include "patch.h"
521 /* Version info! */
522 snprintf(ver, sizeof ver, "%s v%s", PACKAGE, egg_version);
523 snprintf(version, sizeof version, "Eggdrop v%s (C) 1997 Robey Pointer (C) 2003 Eggheads",
524 egg_version);
525 /* Now add on the patchlevel (for Tcl) */
526 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
527 strcat(egg_version, egg_xtra);
528 #ifdef STOP_UAC
529 {
530 int nvpair[2];
531
532 nvpair[0] = SSIN_UACPROC;
533 nvpair[1] = UAC_NOPRINT;
534 setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
535 }
536 #endif
537
538 /* Set up error traps: */
539 sv.sa_handler = got_bus;
540 sigemptyset(&sv.sa_mask);
541 #ifdef SA_RESETHAND
542 sv.sa_flags = SA_RESETHAND;
543 #else
544 sv.sa_flags = 0;
545 #endif
546 sigaction(SIGBUS, &sv, NULL);
547 sv.sa_handler = got_segv;
548 sigaction(SIGSEGV, &sv, NULL);
549 #ifdef SA_RESETHAND
550 sv.sa_flags = 0;
551 #endif
552 sv.sa_handler = got_fpe;
553 sigaction(SIGFPE, &sv, NULL);
554 sv.sa_handler = got_term;
555 sigaction(SIGTERM, &sv, NULL);
556 sv.sa_handler = got_hup;
557 sigaction(SIGHUP, &sv, NULL);
558 sv.sa_handler = got_quit;
559 sigaction(SIGQUIT, &sv, NULL);
560 sv.sa_handler = SIG_IGN;
561 sigaction(SIGPIPE, &sv, NULL);
562 sv.sa_handler = got_ill;
563 sigaction(SIGILL, &sv, NULL);
564 sv.sa_handler = got_alarm;
565 sigaction(SIGALRM, &sv, NULL);
566
567 /* Initialize variables and stuff */
568 timer_update_now(&egg_timeval_now);
569 now = egg_timeval_now.sec;
570 chanset = NULL;
571 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
572 lastmin = nowtm.tm_min;
573 srandom(now % (getpid() + getppid()));
574
575 do_args(argc, argv);
576
577 printf("\n%s\n", version);
578 printf(" *** WARNING: Do NOT run this DEVELOPMENT version for any purpose other than testing.\n\n");
579
580 /* Don't allow eggdrop to run as root */
581 if (((int) getuid() == 0) || ((int) geteuid() == 0))
582 fatal(_("ERROR: Eggdrop will not run as root!"), 0);
583
584 egg = eggdrop_new();
585 config_init();
586 core_config_init(configfile);
587 egglog_init();
588 logfile_init();
589 script_init();
590 user_init();
591 if (core_config.userfile) user_load(core_config.userfile);
592 partyline_init();
593 core_party_init();
594 telnet_init();
595 modules_init();
596 dns_init();
597 egg_dns_init();
598 core_binds_init();
599 dcc_init();
600 init_userent();
601 init_net();
602 traffic_init();
603
604 if (backgrd)
605 bg_prepare_split();
606
607 init_tcl(argc, argv);
608
609 strlcpy(s, ctime(&now), sizeof s);
610 strcpy(&s[11], &s[20]);
611 putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
612
613 /* Scan the autoload section of config. */
614 config_root = config_get_root("eggdrop");
615 for (i = 0; config_exists(config_root, "eggdrop", 0, "autoload", 0, "module", i, NULL); i++) {
616 modname = NULL;
617 config_get_str(&modname, config_root, "eggdrop", 0, "autoload", 0, "module", i, NULL);
618 module_load(modname);
619 }
620 for (i = 0; config_exists(config_root, "eggdrop", 0, "autoload", 0, "script", i, NULL); i++) {
621 scriptname = NULL;
622 config_get_str(&scriptname, config_root, "eggdrop", 0, "autoload", 0, "script", i, NULL);
623 script_load(scriptname);
624 }
625
626
627 i = 0;
628 for (chan = chanset; chan; chan = chan->next)
629 i++;
630 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.", core_config.botname, i,
631 count_users(userlist));
632 cache_miss = 0;
633 cache_hit = 0;
634
635 if (!pid_file[0])
636 snprintf(pid_file, sizeof pid_file, "pid.%s", myname);
637
638 /* Check for pre-existing eggdrop! */
639 f = fopen(pid_file, "r");
640 if (f != NULL) {
641 fgets(s, 10, f);
642 xx = atoi(s);
643 kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
644 is used */
645 if (errno != ESRCH) {
646 printf(_("I detect %s already running from this directory.\n"), myname);
647 printf(_("If this is incorrect, erase the %s\n"), pid_file);
648 bg_send_quit(BG_ABORT);
649 exit(1);
650 }
651 }
652
653 /* Move into background? */
654 if (backgrd) {
655 #ifndef CYGWIN_HACKS
656 bg_do_split();
657 } else { /* !backgrd */
658 #endif
659 xx = getpid();
660 if (xx != 0) {
661 FILE *fp;
662
663 /* Write pid to file */
664 unlink(pid_file);
665 fp = fopen(pid_file, "w");
666 if (fp != NULL) {
667 fprintf(fp, "%u\n", xx);
668 if (fflush(fp)) {
669 /* Let the bot live since this doesn't appear to be a botchk */
670 printf(_("* Warning! Could not write %s file!\n"), pid_file);
671 fclose(fp);
672 unlink(pid_file);
673 } else
674 fclose(fp);
675 } else
676 printf(_("* Warning! Could not write %s file!\n"), pid_file);
677 #ifdef CYGWIN_HACKS
678 printf("Launched into the background (pid: %d)\n\n", xx);
679 #endif
680 }
681 }
682
683 use_stderr = 0; /* Stop writing to stderr now */
684 if (backgrd) {
685 /* Ok, try to disassociate from controlling terminal (finger cross) */
686 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
687 setpgid(0, 0);
688 #endif
689 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
690 freopen("/dev/null", "r", stdin);
691 freopen("/dev/null", "w", stdout);
692 freopen("/dev/null", "w", stderr);
693 #ifdef CYGWIN_HACKS
694 FreeConsole();
695 #endif
696 }
697
698 /* Terminal emulating dcc chat */
699 if (!backgrd && term_z) {
700 int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
701
702 dcc[n].addr[0] = '\0';
703 dcc[n].sock = STDOUT;
704 dcc[n].timeval = now;
705 dcc[n].u.chat->con_flags = conmask;
706 dcc[n].status = STAT_ECHO;
707 strcpy(dcc[n].nick, "HQ");
708 strcpy(dcc[n].host, "llama@console");
709 dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
710 /* Make sure there's an innocuous HQ user if needed */
711 if (!dcc[n].user) {
712 userlist = adduser(userlist, dcc[n].nick, "none", "-", USER_PARTY);
713 dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
714 }
715 setsock(STDOUT, 0); /* Entry in net table */
716 dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
717 dcc_chatter(n);
718 }
719
720 online_since = now;
721 add_help_reference("cmds1.help");
722 add_help_reference("cmds2.help");
723 add_help_reference("core.help");
724 howlong.sec = 1;
725 howlong.usec = 0;
726 timer_create_repeater(&howlong, (Function) core_secondly);
727
728 /* init time'd hooks */
729 add_hook(HOOK_MINUTELY, (Function) core_minutely);
730 add_hook(HOOK_HOURLY, (Function) core_hourly);
731 add_hook(HOOK_REHASH, (Function) event_rehash);
732 add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
733 add_hook(HOOK_USERFILE, (Function) event_save);
734 add_hook(HOOK_BACKUP, (Function) backup_userfile);
735 add_hook(HOOK_DAILY, (Function) event_logfile);
736 add_hook(HOOK_LOADED, (Function) event_loaded);
737
738 call_hook(HOOK_LOADED);
739
740 debug0("main: entering loop");
741 while (1) {
742 int socket_cleanup = 0;
743
744 #if !defined(HAVE_PRE7_5_TCL)
745 /* Process a single tcl event */
746 Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
747 #endif
748
749 /* Lets move some of this here, reducing the numer of actual
750 * calls to periodic_timers
751 */
752 timer_get_time(&egg_timeval_now);
753 now = egg_timeval_now.sec;
754 random(); /* Woop, lets really jumble things */
755 timer_run();
756
757 /* Only do this every so often. */
758 if (!socket_cleanup) {
759 socket_cleanup = 5;
760
761 /* Remove dead dcc entries. */
762 dcc_remove_lost();
763
764 /* Check for server or dcc activity. */
765 dequeue_sockets();
766 } else
767 socket_cleanup--;
768
769 /* Free unused structures. */
770 /* garbage_collect(); */
771
772 if (timer_get_shortest(&howlong)) {
773 timeout = 1000;
774 }
775 else {
776 timeout = howlong.sec * 1000 + howlong.usec / 1000;
777 }
778 sockbuf_update_all(timeout);
779
780 xx = sockgets(buf, &i);
781 timer_update_now(&egg_timeval_now);
782 if (xx >= 0) { /* Non-error */
783 int idx;
784
785 for (idx = 0; idx < dcc_total; idx++)
786 if (dcc[idx].sock == xx) {
787 if (dcc[idx].type && dcc[idx].type->activity) {
788
789 /* update traffic stats */
790 traffic_update_in(dcc[idx].type, (strlen(buf) + 1));
791
792 dcc[idx].type->activity(idx, buf, i);
793 } else
794 putlog(LOG_MISC, "*",
795 "!!! untrapped dcc activity: type %s, sock %d",
796 dcc[idx].type->name, dcc[idx].sock);
797 break;
798 }
799 } else if (xx == -1) { /* EOF from someone */
800 int idx;
801
802 if (i == STDOUT && !backgrd)
803 fatal("END OF FILE ON TERMINAL", 0);
804 for (idx = 0; idx < dcc_total; idx++)
805 if (dcc[idx].sock == i) {
806 if (dcc[idx].type && dcc[idx].type->eof)
807 dcc[idx].type->eof(idx);
808 else {
809 putlog(LOG_MISC, "*",
810 "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
811 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
812 killsock(i);
813 lostdcc(idx);
814 }
815 idx = dcc_total + 1;
816 }
817 if (idx == dcc_total) {
818 putlog(LOG_MISC, "*",
819 "(@) EOF socket %d, not a dcc socket, not anything.", i);
820 close(i);
821 killsock(i);
822 }
823 } else if (xx == -2 && errno != EINTR) { /* select() error */
824 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
825 for (i = 0; i < dcc_total; i++) {
826 if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno == EBADF)) {
827 putlog(LOG_MISC, "*",
828 "DCC socket %d (type %d, name '%s') expired -- pfft",
829 dcc[i].sock, dcc[i].type, dcc[i].nick);
830 killsock(dcc[i].sock);
831 lostdcc(i);
832 i--;
833 }
834 }
835 } else if (xx == -3) {
836 call_hook(HOOK_IDLE);
837 socket_cleanup = 0; /* If we've been idle, cleanup & flush */
838 }
839
840 if (do_restart) {
841 if (do_restart == -2)
842 rehash();
843 else {
844 /* Unload as many modules as possible */
845 int f = 1;
846 module_entry *p;
847 Function x;
848 char xx[256];
849
850 /* oops, I guess we should call this event before tcl is restarted */
851 check_bind_event("prerestart");
852
853 while (f) {
854 f = 0;
855 for (p = module_list; p != NULL; p = p->next) {
856 dependancy *d = dependancy_list;
857 int ok = 1;
858
859 while (ok && d) {
860 if (d->needed == p)
861 ok = 0;
862 d = d->next;
863 }
864 if (ok) {
865 strcpy(xx, p->name);
866 if (module_unload(xx, myname) == NULL) {
867 f = 1;
868 break;
869 }
870 }
871 }
872 }
873 p = module_list;
874 if (p && p->next && p->next->next)
875 /* Should be only 2 modules now - blowfish (or some other
876 encryption module) and eggdrop. */
877 putlog(LOG_MISC, "*", _("Stagnant module; there WILL be memory leaks!"));
878 flushlogs();
879 kill_tcl();
880 timer_destroy_all(); /* Destroy all timers. */
881 init_tcl(argc, argv);
882 /* We expect the encryption module as the current module pointed
883 * to by `module_list'.
884 */
885 x = p->funcs[MODCALL_START];
886 /* `NULL' indicates that we just recently restarted. The module
887 * is expected to re-initialise as needed.
888 */
889 x(NULL);
890 rehash();
891 call_hook(HOOK_LOADED);
892 }
893 do_restart = 0;
894 }
895 }
896 }

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