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

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Revision 1.117 - (show annotations) (download) (as text)
Sun May 5 16:40:38 2002 UTC (17 years, 2 months ago) by tothwolf
Branch: MAIN
Changes since 1.116: +9 -6 lines
File MIME type: text/x-chdr
Grafted GPL header onto newer files.
Storing rcsid in binary files now.

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 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[] = "$Id$";
34 #endif
35
36 #include "main.h"
37 #include <fcntl.h>
38 #include <time.h>
39 #include <errno.h>
40 #include <signal.h>
41 #include <netdb.h>
42 #include <setjmp.h>
43 #include "users.h" /* check_expired_ignores,
44 autolink_cycle,
45 get_user_by_handle */
46 #include "chanprog.h" /* tell_verbose_status,
47 chanprog, rehash */
48 #include "net.h" /* killsock, setsock,
49 dequeue_sockets, sockgets */
50 #include "userrec.h" /* write_userfile, count_users */
51 #include <locale.h>
52
53 #ifdef STOP_UAC /* osf/1 complains a lot */
54 #include <sys/sysinfo.h>
55 #define UAC_NOPRINT 0x00000001 /* Don't report unaligned fixups */
56 #endif
57 /* Some systems have a working sys/wait.h even though configure will
58 * decide it's not bsd compatable. Oh well.
59 */
60
61 #include "chan.h"
62 #include "modules.h"
63 #include "tandem.h"
64 #include "bg.h"
65 #include "egg_timer.h"
66 #include "core_binds.h"
67 #include "logfile.h"
68 #include "misc.h"
69 #include "dccutil.h" /* dprintf_eggdrop, new_dcc,
70 dcc_chatter, dcc_remove_lost,
71 lostdcc */
72
73 #include "lib/adns/adns.h"
74
75 #ifdef CYGWIN_HACKS
76 #include <windows.h>
77 #endif
78
79 #ifndef _POSIX_SOURCE
80 /* Solaris needs this */
81 #define _POSIX_SOURCE 1
82 #endif
83
84 extern char userfile[], botnetnick[];
85 extern int dcc_total, conmask, cache_hit, cache_miss;
86 extern struct dcc_t *dcc;
87 extern struct userrec *userlist;
88 extern struct chanset_t *chanset;
89 extern jmp_buf alarmret;
90
91 #ifndef MAKING_MODS
92 extern struct dcc_table DCC_CHAT;
93 #endif /* MAKING_MODS */
94
95 /*
96 * Please use the PATCH macro instead of directly altering the version
97 * string from now on (it makes it much easier to maintain patches).
98 * Also please read the README file regarding your rights to distribute
99 * modified versions of this bot.
100 */
101
102 char egg_version[1024] = VERSION;
103 int egg_numver = VERSION_NUM;
104
105 eggdrop_t *egg = NULL; /* Eggdrop's context */
106
107 char notify_new[121] = ""; /* Person to send a note to for new users */
108 int default_flags = 0; /* Default user flags and */
109 int default_uflags = 0; /* Default userdefinied flags for people
110 who say 'hello' or for .adduser */
111
112 int backgrd = 1; /* Run in the background? */
113 int con_chan = 0; /* Foreground: constantly display channel
114 stats? */
115 int term_z = 0; /* Foreground: use the terminal as a party
116 line? */
117 char configfile[121] = "eggdrop.conf"; /* Name of the config file */
118 static char preload_module[121] = ""; /* Name of the module to preload */
119 char helpdir[121]; /* Directory of help files (if used) */
120 char textdir[121] = ""; /* Directory for text files that get dumped */
121 time_t online_since; /* Unix-time that the bot loaded up */
122 int make_userfile = 0; /* Using bot in make-userfile mode? (first
123 user to 'hello' becomes master) */
124 char owner[121] = ""; /* Permanent owner(s) of the bot */
125 char pid_file[120]; /* Name of the file for the pid to be
126 stored in */
127 int save_users_at = 0; /* How many minutes past the hour to
128 save the userfile? */
129 int notify_users_at = 0; /* How many minutes past the hour to
130 notify users of notes? */
131 char version[81]; /* Version info (long form) */
132 char ver[41]; /* Version info (short form) */
133 char egg_xtra[2048]; /* Patch info */
134 int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
135 int do_restart = 0; /* .restart has been called, restart asap */
136 int die_on_sighup = 0; /* die if bot receives SIGHUP */
137 int die_on_sigterm = 1; /* die if bot receives SIGTERM */
138 int resolve_timeout = 15; /* hostname/address lookup timeout */
139 char quit_msg[1024]; /* quit message */
140 time_t now; /* duh, now :) */
141 egg_timeval_t egg_timeval_now; /* Same thing, but seconds and microseconds. */
142
143 /* Traffic stats
144 */
145 #include "traffic.h" /* egg_traffic_t */
146 egg_traffic_t traffic;
147
148 void fatal(const char *s, int recoverable)
149 {
150 int i;
151
152 putlog(LOG_MISC, "*", "* %s", s);
153 flushlogs();
154 for (i = 0; i < dcc_total; i++)
155 if (dcc[i].sock >= 0)
156 killsock(dcc[i].sock);
157 unlink(pid_file);
158 if (!recoverable) {
159 bg_send_quit(BG_ABORT);
160 exit(1);
161 }
162 }
163
164 static void check_expired_dcc()
165 {
166 int i;
167
168 for (i = 0; i < dcc_total; i++)
169 if (dcc[i].type && dcc[i].type->timeout_val &&
170 ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
171 if (dcc[i].type->timeout)
172 dcc[i].type->timeout(i);
173 else if (dcc[i].type->eof)
174 dcc[i].type->eof(i);
175 else
176 continue;
177 /* Only timeout 1 socket per cycle, too risky for more */
178 return;
179 }
180 }
181
182 static void got_bus(int z)
183 {
184 fatal("BUS ERROR -- CRASHING!", 1);
185 #ifdef SA_RESETHAND
186 kill(getpid(), SIGBUS);
187 #else
188 bg_send_quit(BG_ABORT);
189 exit(1);
190 #endif
191 }
192
193 static void got_segv(int z)
194 {
195 fatal("SEGMENT VIOLATION -- CRASHING!", 1);
196 #ifdef SA_RESETHAND
197 kill(getpid(), SIGSEGV);
198 #else
199 bg_send_quit(BG_ABORT);
200 exit(1);
201 #endif
202 }
203
204 static void got_fpe(int z)
205 {
206 fatal("FLOATING POINT ERROR -- CRASHING!", 0);
207 }
208
209 static void got_term(int z)
210 {
211 write_userfile(-1);
212 check_bind_event("sigterm");
213 if (die_on_sigterm) {
214 fatal("TERMINATE SIGNAL -- SIGNING OFF", 0);
215 } else {
216 putlog(LOG_MISC, "*", "RECEIVED TERMINATE SIGNAL (IGNORING)");
217 }
218 }
219
220 static void got_quit(int z)
221 {
222 check_bind_event("sigquit");
223 putlog(LOG_MISC, "*", "RECEIVED QUIT SIGNAL (IGNORING)");
224 return;
225 }
226
227 static void got_hup(int z)
228 {
229 write_userfile(-1);
230 check_bind_event("sighup");
231 if (die_on_sighup) {
232 fatal("HANGUP SIGNAL -- SIGNING OFF", 0);
233 } else
234 putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
235 do_restart = -2;
236 return;
237 }
238
239 /* A call to resolver (gethostbyname, etc) timed out
240 */
241 static void got_alarm(int z)
242 {
243 longjmp(alarmret, 1);
244
245 /* -Never reached- */
246 }
247
248 /* Got ILL signal
249 */
250 static void got_ill(int z)
251 {
252 check_bind_event("sigill");
253 }
254
255
256 static void print_version (void)
257 {
258 char x[1024], *z = x;
259
260 strlcpy(x, egg_version, sizeof x);
261 newsplit(&z);
262 newsplit(&z);
263 printf("%s\n", version);
264 if (z[0])
265 printf(" (patches: %s)\n", z);
266 }
267
268 static void print_help (void)
269 {
270 print_version ();
271 printf("\n\
272 Usage: %s [OPTIONS]... [FILE]\n", PACKAGE);
273 printf(_("\n\
274 -h, --help Print help and exit\n\
275 -v, --version Print version and exit\n\
276 -n, --foreground Don't go into the background (default=off)\n\
277 -c --channel-stats (with -n) Display channel stats every 10 seconds\n\
278 -t --terminal (with -n) Use terminal to simulate dcc-chat\n\
279 -m --make-userfile Userfile creation mode\n\
280 -p --load-module=STRING Modules to load before parsing any configuration\n\
281 file\n\
282 FILE optional config filename (default 'eggdrop.conf')\n"));
283 printf("\n");
284 }
285
286 static void do_args(int argc, char * const *argv)
287 {
288 int c;
289
290 optarg = 0;
291 optind = 1;
292 opterr = 1;
293 optopt = '?';
294
295 while (1) {
296 int option_index = 0;
297 static struct option long_options[] = {
298 { "help", 0, NULL, 'h' },
299 { "version", 0, NULL, 'v' },
300 { "load-module", 1, NULL, 'p' },
301 { "foreground", 0, NULL, 'n' },
302 { "channel-stats", 0, NULL, 'c' },
303 { "terminal", 0, NULL, 't' },
304 { "make-userfile", 0, NULL, 'm' },
305 { NULL, 0, NULL, 0 }
306 };
307
308 c = getopt_long (argc, argv, "hvp:nctm", long_options, &option_index);
309
310 if (c == -1) break;
311
312 switch (c) {
313 case 'n':
314 backgrd = 0;
315 break;
316
317 case 'c':
318 con_chan = 1;
319 term_z = 0;
320 break;
321
322 case 't':
323 con_chan = 0;
324 term_z = 1;
325 break;
326
327 case 'm':
328 make_userfile = 1;
329 break;
330
331 case 'p':
332 strlcpy(preload_module, optarg, sizeof preload_module);
333 break;
334
335 case 'v':
336 print_version();
337 bg_send_quit(BG_ABORT);
338 exit(0);
339 break; /* this should never be reached */
340
341 case 'h':
342 print_help();
343 bg_send_quit(BG_ABORT);
344 exit(0);
345 break; /* this should never be reached */
346
347 case 0: /* Long option with no short option */
348 case '?': /* Invalid option. */
349 /* getopt_long() already printed an error message. */
350 bg_send_quit(BG_ABORT);
351 exit(1);
352
353 default: /* bug: option not considered. */
354 fprintf (stderr, "%s: option unknown: %c\n", PACKAGE, c);
355 bg_send_quit(BG_ABORT);
356 exit(1);
357 break; /* this should never be reached */
358 }
359 }
360 if (optind < argc)
361 strlcpy(configfile, argv[optind], sizeof configfile);
362 }
363
364 /* Timer info */
365 static int lastmin = 99;
366 static struct tm nowtm;
367
368 /* Called once a second.
369 */
370 static void core_secondly()
371 {
372 static int cnt = 0;
373 int miltime;
374
375 call_hook(HOOK_SECONDLY); /* Will be removed later */
376 cnt++;
377 if (cnt >= 10) { /* Every 10 seconds */
378 cnt = 0;
379 check_expired_dcc();
380 if (con_chan && !backgrd) {
381 dprintf(DP_STDOUT, "\033[2J\033[1;1H");
382 tell_verbose_status(DP_STDOUT);
383 do_module_report(DP_STDOUT, 0, "server");
384 do_module_report(DP_STDOUT, 0, "channels");
385 }
386 }
387 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
388 if (nowtm.tm_min != lastmin) {
389 int i = 0;
390
391 /* Once a minute */
392 lastmin = (lastmin + 1) % 60;
393 call_hook(HOOK_MINUTELY);
394 check_expired_ignores();
395 autolink_cycle(NULL); /* Attempt autolinks */
396 /* In case for some reason more than 1 min has passed: */
397 while (nowtm.tm_min != lastmin) {
398 /* Timer drift, dammit */
399 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
400 i++;
401 lastmin = (lastmin + 1) % 60;
402 call_hook(HOOK_MINUTELY);
403 }
404 if (i > 1)
405 putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
406 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
407 if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
408 call_hook(HOOK_5MINUTELY);
409 if (!miltime) { /* At midnight */
410 char s[25];
411
412 strlcpy(s, ctime(&now), sizeof s);
413 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
414 call_hook(HOOK_BACKUP);
415 call_hook(HOOK_DAILY);
416 }
417 }
418 if (nowtm.tm_min == notify_users_at)
419 call_hook(HOOK_HOURLY);
420 }
421 }
422
423 static void core_minutely()
424 {
425 check_bind_time(&nowtm);
426 }
427
428 static void core_hourly()
429 {
430 write_userfile(-1);
431 }
432
433 static void event_rehash()
434 {
435 check_bind_event("rehash");
436 }
437
438 static void event_prerehash()
439 {
440 check_bind_event("prerehash");
441 }
442
443 static void event_save()
444 {
445 check_bind_event("save");
446 }
447
448 static void event_logfile()
449 {
450 check_bind_event("logfile");
451 }
452
453 static void event_resettraffic()
454 {
455 traffic.out_total.irc += traffic.out_today.irc;
456 traffic.out_total.bn += traffic.out_today.bn;
457 traffic.out_total.dcc += traffic.out_today.dcc;
458 traffic.out_total.filesys += traffic.out_today.filesys;
459 traffic.out_total.trans += traffic.out_today.trans;
460 traffic.out_total.unknown += traffic.out_today.unknown;
461
462 traffic.in_total.irc += traffic.in_today.irc;
463 traffic.in_total.bn += traffic.in_today.bn;
464 traffic.in_total.dcc += traffic.in_today.dcc;
465 traffic.in_total.filesys += traffic.in_today.filesys;
466 traffic.in_total.trans += traffic.in_today.trans;
467 traffic.in_total.unknown += traffic.in_today.unknown;
468
469 memset(&traffic.out_today, 0, sizeof(traffic.out_today));
470 memset(&traffic.in_today, 0, sizeof(traffic.in_today));
471 }
472
473 static void event_loaded()
474 {
475 check_bind_event("loaded");
476 }
477
478 void kill_tcl();
479 extern module_entry *module_list;
480 void restart_chons();
481
482 int init_userent(), init_net(),
483 init_tcl(int, char **);
484 int user_init();
485 void botnet_init();
486 void dns_init();
487 void binds_init();
488 void dcc_init();
489
490 void patch(const char *str)
491 {
492 char *p = strchr(egg_version, '+');
493
494 if (!p)
495 p = &egg_version[strlen(egg_version)];
496 sprintf(p, "+%s", str);
497 egg_numver++;
498 sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
499 }
500
501 /*
502 static inline void garbage_collect(void)
503 {
504 static u_8bit_t run_cnt = 0;
505
506 if (run_cnt == 3)
507 garbage_collect_tclhash();
508 else
509 run_cnt++;
510 }
511 */
512
513 int main(int argc, char **argv)
514 {
515 int xx, i;
516 char buf[520], s[25];
517 FILE *f;
518 struct sigaction sv;
519 struct chanset_t *chan;
520 egg_timeval_t howlong;
521
522 #ifdef DEBUG
523 /* Make sure it can write core, if you make debug. Else it's pretty
524 * useless (dw)
525 */
526 {
527 #include <sys/resource.h>
528 struct rlimit cdlim;
529
530 cdlim.rlim_cur = RLIM_INFINITY;
531 cdlim.rlim_max = RLIM_INFINITY;
532 setrlimit(RLIMIT_CORE, &cdlim);
533 }
534 #endif
535
536 #ifdef ENABLE_NLS
537 setlocale(LC_MESSAGES, "");
538 bindtextdomain(PACKAGE, LOCALEDIR);
539 textdomain(PACKAGE);
540 #endif
541
542 #include "patch.h"
543 /* Version info! */
544 snprintf(ver, sizeof ver, "%s v%s", PACKAGE, egg_version);
545 snprintf(version, sizeof version, "Eggdrop v%s (C) 1997 Robey Pointer (C) 2002 Eggheads",
546 egg_version);
547 /* Now add on the patchlevel (for Tcl) */
548 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
549 strcat(egg_version, egg_xtra);
550 #ifdef STOP_UAC
551 {
552 int nvpair[2];
553
554 nvpair[0] = SSIN_UACPROC;
555 nvpair[1] = UAC_NOPRINT;
556 setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
557 }
558 #endif
559
560 /* Set up error traps: */
561 sv.sa_handler = got_bus;
562 sigemptyset(&sv.sa_mask);
563 #ifdef SA_RESETHAND
564 sv.sa_flags = SA_RESETHAND;
565 #else
566 sv.sa_flags = 0;
567 #endif
568 sigaction(SIGBUS, &sv, NULL);
569 sv.sa_handler = got_segv;
570 sigaction(SIGSEGV, &sv, NULL);
571 #ifdef SA_RESETHAND
572 sv.sa_flags = 0;
573 #endif
574 sv.sa_handler = got_fpe;
575 sigaction(SIGFPE, &sv, NULL);
576 sv.sa_handler = got_term;
577 sigaction(SIGTERM, &sv, NULL);
578 sv.sa_handler = got_hup;
579 sigaction(SIGHUP, &sv, NULL);
580 sv.sa_handler = got_quit;
581 sigaction(SIGQUIT, &sv, NULL);
582 sv.sa_handler = SIG_IGN;
583 sigaction(SIGPIPE, &sv, NULL);
584 sv.sa_handler = got_ill;
585 sigaction(SIGILL, &sv, NULL);
586 sv.sa_handler = got_alarm;
587 sigaction(SIGALRM, &sv, NULL);
588
589 /* Initialize variables and stuff */
590 timer_get_time(&egg_timeval_now);
591 now = egg_timeval_now.sec;
592 chanset = NULL;
593 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
594 lastmin = nowtm.tm_min;
595 srandom(now % (getpid() + getppid()));
596
597 do_args(argc, argv);
598
599 printf("\n%s\n", version);
600 printf(" *** WARNING: Do NOT run this DEVELOPMENT version for any purpose other than testing.\n\n");
601
602 /* Don't allow eggdrop to run as root */
603 if (((int) getuid() == 0) || ((int) geteuid() == 0))
604 fatal(_("ERROR: Eggdrop will not run as root!"), 0);
605
606 egg = eggdrop_new();
607 script_init();
608 binds_init();
609 modules_init();
610 logfile_init();
611 timer_init();
612 dns_init();
613 core_binds_init();
614 dcc_init();
615 user_init();
616 init_userent();
617 botnet_init();
618 init_net();
619
620 if (backgrd)
621 bg_prepare_split();
622
623 init_tcl(argc, argv);
624
625 strlcpy(s, ctime(&now), sizeof s);
626 strcpy(&s[11], &s[20]);
627 putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
628 if (preload_module[0])
629 module_load(preload_module);
630 chanprog();
631 if (!encrypt_pass) {
632 printf(_("You have installed modules but have not selected an encryption\n\
633 module, please consult the default config file for info.\n"));
634 bg_send_quit(BG_ABORT);
635 exit(1);
636 }
637 i = 0;
638 for (chan = chanset; chan; chan = chan->next)
639 i++;
640 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
641 botnetnick, i, count_users(userlist));
642 cache_miss = 0;
643 cache_hit = 0;
644
645 if (!pid_file[0])
646 snprintf(pid_file, sizeof pid_file, "pid.%s", botnetnick);
647
648 /* Check for pre-existing eggdrop! */
649 f = fopen(pid_file, "r");
650 if (f != NULL) {
651 fgets(s, 10, f);
652 xx = atoi(s);
653 kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
654 is used */
655 if (errno != ESRCH) {
656 printf(_("I detect %s already running from this directory.\n"), botnetnick);
657 printf(_("If this is incorrect, erase the %s\n"), pid_file);
658 bg_send_quit(BG_ABORT);
659 exit(1);
660 }
661 }
662
663 /* Move into background? */
664 if (backgrd) {
665 #ifndef CYGWIN_HACKS
666 bg_do_split();
667 } else { /* !backgrd */
668 #endif
669 xx = getpid();
670 if (xx != 0) {
671 FILE *fp;
672
673 /* Write pid to file */
674 unlink(pid_file);
675 fp = fopen(pid_file, "w");
676 if (fp != NULL) {
677 fprintf(fp, "%u\n", xx);
678 if (fflush(fp)) {
679 /* Let the bot live since this doesn't appear to be a botchk */
680 printf(_("* Warning! Could not write %s file!\n"), pid_file);
681 fclose(fp);
682 unlink(pid_file);
683 } else
684 fclose(fp);
685 } else
686 printf(_("* Warning! Could not write %s file!\n"), pid_file);
687 #ifdef CYGWIN_HACKS
688 printf("Launched into the background (pid: %d)\n\n", xx);
689 #endif
690 }
691 }
692
693 use_stderr = 0; /* Stop writing to stderr now */
694 if (backgrd) {
695 /* Ok, try to disassociate from controlling terminal (finger cross) */
696 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
697 setpgid(0, 0);
698 #endif
699 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
700 freopen("/dev/null", "r", stdin);
701 freopen("/dev/null", "w", stdout);
702 freopen("/dev/null", "w", stderr);
703 #ifdef CYGWIN_HACKS
704 FreeConsole();
705 #endif
706 }
707
708 /* Terminal emulating dcc chat */
709 if (!backgrd && term_z) {
710 int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
711
712 dcc[n].addr[0] = '\0';
713 dcc[n].sock = STDOUT;
714 dcc[n].timeval = now;
715 dcc[n].u.chat->con_flags = conmask;
716 dcc[n].u.chat->strip_flags = STRIP_ALL;
717 dcc[n].status = STAT_ECHO;
718 strcpy(dcc[n].nick, "HQ");
719 strcpy(dcc[n].host, "llama@console");
720 dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
721 /* Make sure there's an innocuous HQ user if needed */
722 if (!dcc[n].user) {
723 userlist = adduser(userlist, dcc[n].nick, "none", "-", USER_PARTY);
724 dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
725 }
726 setsock(STDOUT, 0); /* Entry in net table */
727 dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
728 dcc_chatter(n);
729 }
730
731 online_since = now;
732 autolink_cycle(NULL); /* Hurry and connect to tandem bots */
733 add_help_reference("cmds1.help");
734 add_help_reference("cmds2.help");
735 add_help_reference("core.help");
736 howlong.sec = 1;
737 howlong.usec = 0;
738 timer_create_repeater(&howlong, (Function) core_secondly);
739 add_hook(HOOK_MINUTELY, (Function) core_minutely);
740 add_hook(HOOK_HOURLY, (Function) core_hourly);
741 add_hook(HOOK_REHASH, (Function) event_rehash);
742 add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
743 add_hook(HOOK_USERFILE, (Function) event_save);
744 add_hook(HOOK_BACKUP, (Function) backup_userfile);
745 add_hook(HOOK_DAILY, (Function) event_logfile);
746 add_hook(HOOK_DAILY, (Function) event_resettraffic);
747 add_hook(HOOK_LOADED, (Function) event_loaded);
748
749 call_hook(HOOK_LOADED);
750
751 debug0("main: entering loop");
752 while (1) {
753 int socket_cleanup = 0;
754
755 #if !defined(HAVE_PRE7_5_TCL)
756 /* Process a single tcl event */
757 Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
758 #endif
759
760 /* Lets move some of this here, reducing the numer of actual
761 * calls to periodic_timers
762 */
763 timer_get_time(&egg_timeval_now);
764 now = egg_timeval_now.sec;
765 random(); /* Woop, lets really jumble things */
766 timer_run();
767
768 /* Only do this every so often. */
769 if (!socket_cleanup) {
770 socket_cleanup = 5;
771
772 /* Remove dead dcc entries. */
773 dcc_remove_lost();
774
775 /* Check for server or dcc activity. */
776 dequeue_sockets();
777 } else
778 socket_cleanup--;
779
780 /* Free unused structures. */
781 /* garbage_collect(); */
782
783 xx = sockgets(buf, &i);
784 timer_get_time(&egg_timeval_now);
785 if (xx >= 0) { /* Non-error */
786 int idx;
787
788 for (idx = 0; idx < dcc_total; idx++)
789 if (dcc[idx].sock == xx) {
790 if (dcc[idx].type && dcc[idx].type->activity) {
791 /* Traffic stats */
792 if (dcc[idx].type->name) {
793 if (!strncmp(dcc[idx].type->name, "BOT", 3))
794 traffic.in_today.bn += strlen(buf) + 1;
795 else if (!strcmp(dcc[idx].type->name, "SERVER"))
796 traffic.in_today.irc += strlen(buf) + 1;
797 else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
798 traffic.in_today.dcc += strlen(buf) + 1;
799 else if (!strncmp(dcc[idx].type->name, "FILES", 5))
800 traffic.in_today.dcc += strlen(buf) + 1;
801 else if (!strcmp(dcc[idx].type->name, "SEND"))
802 traffic.in_today.trans += strlen(buf) + 1;
803 else if (!strncmp(dcc[idx].type->name, "GET", 3))
804 traffic.in_today.trans += strlen(buf) + 1;
805 else
806 traffic.in_today.unknown += strlen(buf) + 1;
807 }
808 dcc[idx].type->activity(idx, buf, i);
809 } else
810 putlog(LOG_MISC, "*",
811 "!!! untrapped dcc activity: type %s, sock %d",
812 dcc[idx].type->name, dcc[idx].sock);
813 break;
814 }
815 } else if (xx == -1) { /* EOF from someone */
816 int idx;
817
818 if (i == STDOUT && !backgrd)
819 fatal("END OF FILE ON TERMINAL", 0);
820 for (idx = 0; idx < dcc_total; idx++)
821 if (dcc[idx].sock == i) {
822 if (dcc[idx].type && dcc[idx].type->eof)
823 dcc[idx].type->eof(idx);
824 else {
825 putlog(LOG_MISC, "*",
826 "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
827 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
828 killsock(i);
829 lostdcc(idx);
830 }
831 idx = dcc_total + 1;
832 }
833 if (idx == dcc_total) {
834 putlog(LOG_MISC, "*",
835 "(@) EOF socket %d, not a dcc socket, not anything.", i);
836 close(i);
837 killsock(i);
838 }
839 } else if (xx == -2 && errno != EINTR) { /* select() error */
840 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
841 for (i = 0; i < dcc_total; i++) {
842 if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
843 putlog(LOG_MISC, "*",
844 "DCC socket %d (type %d, name '%s') expired -- pfft",
845 dcc[i].sock, dcc[i].type, dcc[i].nick);
846 killsock(dcc[i].sock);
847 lostdcc(i);
848 i--;
849 }
850 }
851 } else if (xx == -3) {
852 call_hook(HOOK_IDLE);
853 socket_cleanup = 0; /* If we've been idle, cleanup & flush */
854 }
855
856 if (do_restart) {
857 if (do_restart == -2)
858 rehash();
859 else {
860 /* Unload as many modules as possible */
861 int f = 1;
862 module_entry *p;
863 Function x;
864 char xx[256];
865
866 /* oops, I guess we should call this event before tcl is restarted */
867 check_bind_event("prerestart");
868
869 while (f) {
870 f = 0;
871 for (p = module_list; p != NULL; p = p->next) {
872 dependancy *d = dependancy_list;
873 int ok = 1;
874
875 while (ok && d) {
876 if (d->needed == p)
877 ok = 0;
878 d = d->next;
879 }
880 if (ok) {
881 strcpy(xx, p->name);
882 if (module_unload(xx, botnetnick) == NULL) {
883 f = 1;
884 break;
885 }
886 }
887 }
888 }
889 p = module_list;
890 if (p && p->next && p->next->next)
891 /* Should be only 2 modules now - blowfish (or some other
892 encryption module) and eggdrop. */
893 putlog(LOG_MISC, "*", _("Stagnant module; there WILL be memory leaks!"));
894 flushlogs();
895 kill_tcl();
896 timer_destroy_all(); /* Destroy all timers. */
897 init_tcl(argc, argv);
898 /* We expect the encryption module as the current module pointed
899 * to by `module_list'.
900 */
901 x = p->funcs[MODCALL_START];
902 /* `NULL' indicates that we just recently restarted. The module
903 * is expected to re-initialise as needed.
904 */
905 x(NULL);
906 rehash();
907 restart_chons();
908 call_hook(HOOK_LOADED);
909 }
910 do_restart = 0;
911 }
912 }
913 }

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