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

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Revision 1.114 - (show annotations) (download) (as text)
Fri May 3 01:21:16 2002 UTC (17 years, 3 months ago) by ite
Branch: MAIN
Changes since 1.113: +99 -46 lines
File MIME type: text/x-chdr
* Now using getopt_long() for command line processing. Might not be defnitive.
* Workarounded an issue on cygwin which prevented binmode.o to be linked in.
* Minor configure macros cleanup

1 /*
2 * main.c -- handles:
3 * core event handling
4 * signal handling
5 * command line arguments
6 *
7 * $Id: main.c,v 1.113 2002/04/28 05:53:33 ite Exp $
8 */
9 /*
10 * Copyright (C) 1997 Robey Pointer
11 * Copyright (C) 1999, 2000, 2001, 2002 Eggheads Development Team
12 *
13 * This program is free software; you can redistribute it and/or
14 * modify it under the terms of the GNU General Public License
15 * as published by the Free Software Foundation; either version 2
16 * of the License, or (at your option) any later version.
17 *
18 * This program is distributed in the hope that it will be useful,
19 * but WITHOUT ANY WARRANTY; without even the implied warranty of
20 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21 * GNU General Public License for more details.
22 *
23 * You should have received a copy of the GNU General Public License
24 * along with this program; if not, write to the Free Software
25 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
26 */
27 /*
28 * The author (Robey Pointer) can be reached at: robey@netcom.com
29 * NOTE: Robey is no long working on this code, there is a discussion
30 * list available at eggheads@eggheads.org.
31 */
32
33 #include "main.h"
34 #include <fcntl.h>
35 #include <time.h>
36 #include <errno.h>
37 #include <signal.h>
38 #include <netdb.h>
39 #include <setjmp.h>
40
41 #include <locale.h>
42
43 #ifdef STOP_UAC /* osf/1 complains a lot */
44 #include <sys/sysinfo.h>
45 #define UAC_NOPRINT 0x00000001 /* Don't report unaligned fixups */
46 #endif
47 /* Some systems have a working sys/wait.h even though configure will
48 * decide it's not bsd compatable. Oh well.
49 */
50
51 #include "chan.h"
52 #include "modules.h"
53 #include "tandem.h"
54 #include "bg.h"
55 #include "egg_timer.h"
56 #include "core_binds.h"
57 #include "logfile.h"
58 #include "misc.h"
59
60 #include "lib/adns/adns.h"
61
62 #ifdef CYGWIN_HACKS
63 #include <windows.h>
64 #endif
65
66 #ifndef _POSIX_SOURCE
67 /* Solaris needs this */
68 #define _POSIX_SOURCE 1
69 #endif
70
71 extern char userfile[], botnetnick[];
72 extern int dcc_total, conmask, cache_hit, cache_miss;
73 extern struct dcc_t *dcc;
74 extern struct userrec *userlist;
75 extern struct chanset_t *chanset;
76 extern jmp_buf alarmret;
77
78
79 /*
80 * Please use the PATCH macro instead of directly altering the version
81 * string from now on (it makes it much easier to maintain patches).
82 * Also please read the README file regarding your rights to distribute
83 * modified versions of this bot.
84 */
85
86 char egg_version[1024] = VERSION;
87 int egg_numver = VERSION_NUM;
88
89 eggdrop_t *egg = NULL; /* Eggdrop's context */
90
91 char notify_new[121] = ""; /* Person to send a note to for new users */
92 int default_flags = 0; /* Default user flags and */
93 int default_uflags = 0; /* Default userdefinied flags for people
94 who say 'hello' or for .adduser */
95
96 int backgrd = 1; /* Run in the background? */
97 int con_chan = 0; /* Foreground: constantly display channel
98 stats? */
99 int term_z = 0; /* Foreground: use the terminal as a party
100 line? */
101 char configfile[121] = "eggdrop.conf"; /* Name of the config file */
102 static char preload_module[121] = ""; /* Name of the module to preload */
103 char helpdir[121]; /* Directory of help files (if used) */
104 char textdir[121] = ""; /* Directory for text files that get dumped */
105 time_t online_since; /* Unix-time that the bot loaded up */
106 int make_userfile = 0; /* Using bot in make-userfile mode? (first
107 user to 'hello' becomes master) */
108 char owner[121] = ""; /* Permanent owner(s) of the bot */
109 char pid_file[120]; /* Name of the file for the pid to be
110 stored in */
111 int save_users_at = 0; /* How many minutes past the hour to
112 save the userfile? */
113 int notify_users_at = 0; /* How many minutes past the hour to
114 notify users of notes? */
115 char version[81]; /* Version info (long form) */
116 char ver[41]; /* Version info (short form) */
117 char egg_xtra[2048]; /* Patch info */
118 int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
119 int do_restart = 0; /* .restart has been called, restart asap */
120 int die_on_sighup = 0; /* die if bot receives SIGHUP */
121 int die_on_sigterm = 1; /* die if bot receives SIGTERM */
122 int resolve_timeout = 15; /* hostname/address lookup timeout */
123 char quit_msg[1024]; /* quit message */
124 time_t now; /* duh, now :) */
125 egg_timeval_t egg_timeval_now; /* Same thing, but seconds and microseconds. */
126
127 /* Traffic stats
128 */
129 unsigned long otraffic_irc = 0;
130 unsigned long otraffic_irc_today = 0;
131 unsigned long otraffic_bn = 0;
132 unsigned long otraffic_bn_today = 0;
133 unsigned long otraffic_dcc = 0;
134 unsigned long otraffic_dcc_today = 0;
135 unsigned long otraffic_filesys = 0;
136 unsigned long otraffic_filesys_today = 0;
137 unsigned long otraffic_trans = 0;
138 unsigned long otraffic_trans_today = 0;
139 unsigned long otraffic_unknown = 0;
140 unsigned long otraffic_unknown_today = 0;
141 unsigned long itraffic_irc = 0;
142 unsigned long itraffic_irc_today = 0;
143 unsigned long itraffic_bn = 0;
144 unsigned long itraffic_bn_today = 0;
145 unsigned long itraffic_dcc = 0;
146 unsigned long itraffic_dcc_today = 0;
147 unsigned long itraffic_trans = 0;
148 unsigned long itraffic_trans_today = 0;
149 unsigned long itraffic_unknown = 0;
150 unsigned long itraffic_unknown_today = 0;
151
152 void fatal(const char *s, int recoverable)
153 {
154 int i;
155
156 putlog(LOG_MISC, "*", "* %s", s);
157 flushlogs();
158 for (i = 0; i < dcc_total; i++)
159 if (dcc[i].sock >= 0)
160 killsock(dcc[i].sock);
161 unlink(pid_file);
162 if (!recoverable) {
163 bg_send_quit(BG_ABORT);
164 exit(1);
165 }
166 }
167
168 static void check_expired_dcc()
169 {
170 int i;
171
172 for (i = 0; i < dcc_total; i++)
173 if (dcc[i].type && dcc[i].type->timeout_val &&
174 ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
175 if (dcc[i].type->timeout)
176 dcc[i].type->timeout(i);
177 else if (dcc[i].type->eof)
178 dcc[i].type->eof(i);
179 else
180 continue;
181 /* Only timeout 1 socket per cycle, too risky for more */
182 return;
183 }
184 }
185
186 static void got_bus(int z)
187 {
188 fatal("BUS ERROR -- CRASHING!", 1);
189 #ifdef SA_RESETHAND
190 kill(getpid(), SIGBUS);
191 #else
192 bg_send_quit(BG_ABORT);
193 exit(1);
194 #endif
195 }
196
197 static void got_segv(int z)
198 {
199 fatal("SEGMENT VIOLATION -- CRASHING!", 1);
200 #ifdef SA_RESETHAND
201 kill(getpid(), SIGSEGV);
202 #else
203 bg_send_quit(BG_ABORT);
204 exit(1);
205 #endif
206 }
207
208 static void got_fpe(int z)
209 {
210 fatal("FLOATING POINT ERROR -- CRASHING!", 0);
211 }
212
213 static void got_term(int z)
214 {
215 write_userfile(-1);
216 check_bind_event("sigterm");
217 if (die_on_sigterm) {
218 fatal("TERMINATE SIGNAL -- SIGNING OFF", 0);
219 } else {
220 putlog(LOG_MISC, "*", "RECEIVED TERMINATE SIGNAL (IGNORING)");
221 }
222 }
223
224 static void got_quit(int z)
225 {
226 check_bind_event("sigquit");
227 putlog(LOG_MISC, "*", "RECEIVED QUIT SIGNAL (IGNORING)");
228 return;
229 }
230
231 static void got_hup(int z)
232 {
233 write_userfile(-1);
234 check_bind_event("sighup");
235 if (die_on_sighup) {
236 fatal("HANGUP SIGNAL -- SIGNING OFF", 0);
237 } else
238 putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
239 do_restart = -2;
240 return;
241 }
242
243 /* A call to resolver (gethostbyname, etc) timed out
244 */
245 static void got_alarm(int z)
246 {
247 longjmp(alarmret, 1);
248
249 /* -Never reached- */
250 }
251
252 /* Got ILL signal
253 */
254 static void got_ill(int z)
255 {
256 check_bind_event("sigill");
257 }
258
259
260 static void print_version (void)
261 {
262 char x[1024], *z = x;
263
264 strlcpy(x, egg_version, sizeof x);
265 newsplit(&z);
266 newsplit(&z);
267 printf("%s\n", version);
268 if (z[0])
269 printf(" (patches: %s)\n", z);
270 }
271
272 static void print_help (void)
273 {
274 print_version ();
275 printf("\n\
276 Usage: %s [OPTIONS]... [FILE]\n", PACKAGE);
277 printf(_("\n\
278 -h, --help Print help and exit\n\
279 -v, --version Print version and exit\n\
280 -n, --foreground Don't go into the background (default=off)\n\
281 -c --channel-stats (with -n) Display channel stats every 10 seconds\n\
282 -t --terminal (with -n) Use terminal to simulate dcc-chat\n\
283 -m --make-userfile Userfile creation mode\n\
284 -p --load-module=STRING Modules to load before parsing any configuration\n\
285 file\n\
286 FILE optional config filename (default 'eggdrop.conf')\n"));
287 printf("\n");
288 }
289
290 static void do_args(int argc, char * const *argv)
291 {
292 int c;
293
294 optarg = 0;
295 optind = 1;
296 opterr = 1;
297 optopt = '?';
298
299 while (1) {
300 int option_index = 0;
301 static struct option long_options[] = {
302 { "help", 0, NULL, 'h' },
303 { "version", 0, NULL, 'v' },
304 { "load-module", 1, NULL, 'p' },
305 { "foreground", 0, NULL, 'n' },
306 { "channel-stats", 0, NULL, 'c' },
307 { "terminal", 0, NULL, 't' },
308 { "make-userfile", 0, NULL, 'm' },
309 { NULL, 0, NULL, 0 }
310 };
311
312 c = getopt_long (argc, argv, "hvp:nctm", long_options, &option_index);
313
314 if (c == -1) break;
315
316 switch (c) {
317 case 'n':
318 backgrd = 0;
319 break;
320
321 case 'c':
322 con_chan = 1;
323 term_z = 0;
324 break;
325
326 case 't':
327 con_chan = 0;
328 term_z = 1;
329 break;
330
331 case 'm':
332 make_userfile = 1;
333 break;
334
335 case 'p':
336 strlcpy(preload_module, optarg, sizeof preload_module);
337 break;
338
339 case 'v':
340 print_version();
341 bg_send_quit(BG_ABORT);
342 exit(0);
343 break; /* this should never be reached */
344
345 case 'h':
346 print_help();
347 bg_send_quit(BG_ABORT);
348 exit(0);
349 break; /* this should never be reached */
350
351 case 0: /* Long option with no short option */
352 case '?': /* Invalid option. */
353 /* getopt_long() already printed an error message. */
354 bg_send_quit(BG_ABORT);
355 exit(1);
356
357 default: /* bug: option not considered. */
358 fprintf (stderr, "%s: option unknown: %c\n", PACKAGE, c);
359 bg_send_quit(BG_ABORT);
360 exit(1);
361 break; /* this should never be reached */
362 }
363 }
364 if (optind < argc)
365 strlcpy(configfile, argv[optind], sizeof configfile);
366 }
367
368 void backup_userfile(void)
369 {
370 char s[125];
371
372 putlog(LOG_MISC, "*", _("Backing up user file..."));
373 snprintf(s, sizeof s, "%s~bak", userfile);
374 copyfile(userfile, s);
375 }
376
377 /* Timer info */
378 static int lastmin = 99;
379 static struct tm nowtm;
380
381 /* Called once a second.
382 */
383 static void core_secondly()
384 {
385 static int cnt = 0;
386 int miltime;
387
388 call_hook(HOOK_SECONDLY); /* Will be removed later */
389 cnt++;
390 if (cnt >= 10) { /* Every 10 seconds */
391 cnt = 0;
392 check_expired_dcc();
393 if (con_chan && !backgrd) {
394 dprintf(DP_STDOUT, "\033[2J\033[1;1H");
395 tell_verbose_status(DP_STDOUT);
396 do_module_report(DP_STDOUT, 0, "server");
397 do_module_report(DP_STDOUT, 0, "channels");
398 }
399 }
400 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
401 if (nowtm.tm_min != lastmin) {
402 int i = 0;
403
404 /* Once a minute */
405 lastmin = (lastmin + 1) % 60;
406 call_hook(HOOK_MINUTELY);
407 check_expired_ignores();
408 autolink_cycle(NULL); /* Attempt autolinks */
409 /* In case for some reason more than 1 min has passed: */
410 while (nowtm.tm_min != lastmin) {
411 /* Timer drift, dammit */
412 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
413 i++;
414 lastmin = (lastmin + 1) % 60;
415 call_hook(HOOK_MINUTELY);
416 }
417 if (i > 1)
418 putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
419 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
420 if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
421 call_hook(HOOK_5MINUTELY);
422 if (!miltime) { /* At midnight */
423 char s[25];
424
425 strlcpy(s, ctime(&now), sizeof s);
426 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
427 call_hook(HOOK_BACKUP);
428 call_hook(HOOK_DAILY);
429 }
430 }
431 if (nowtm.tm_min == notify_users_at)
432 call_hook(HOOK_HOURLY);
433 }
434 }
435
436 static void core_minutely()
437 {
438 check_bind_time(&nowtm);
439 }
440
441 static void core_hourly()
442 {
443 write_userfile(-1);
444 }
445
446 static void event_rehash()
447 {
448 check_bind_event("rehash");
449 }
450
451 static void event_prerehash()
452 {
453 check_bind_event("prerehash");
454 }
455
456 static void event_save()
457 {
458 check_bind_event("save");
459 }
460
461 static void event_logfile()
462 {
463 check_bind_event("logfile");
464 }
465
466 static void event_resettraffic()
467 {
468 otraffic_irc += otraffic_irc_today;
469 itraffic_irc += itraffic_irc_today;
470 otraffic_bn += otraffic_bn_today;
471 itraffic_bn += itraffic_bn_today;
472 otraffic_dcc += otraffic_dcc_today;
473 itraffic_dcc += itraffic_dcc_today;
474 otraffic_unknown += otraffic_unknown_today;
475 itraffic_unknown += itraffic_unknown_today;
476 otraffic_trans += otraffic_trans_today;
477 itraffic_trans += itraffic_trans_today;
478 otraffic_irc_today = otraffic_bn_today = 0;
479 otraffic_dcc_today = otraffic_unknown_today = 0;
480 itraffic_irc_today = itraffic_bn_today = 0;
481 itraffic_dcc_today = itraffic_unknown_today = 0;
482 itraffic_trans_today = otraffic_trans_today = 0;
483 }
484
485 static void event_loaded()
486 {
487 check_bind_event("loaded");
488 }
489
490 void kill_tcl();
491 extern module_entry *module_list;
492 void restart_chons();
493
494 int init_userent(), init_net(),
495 init_tcl(int, char **);
496 int user_init();
497 void botnet_init();
498 void dns_init();
499 void binds_init();
500 void dcc_init();
501
502 void patch(const char *str)
503 {
504 char *p = strchr(egg_version, '+');
505
506 if (!p)
507 p = &egg_version[strlen(egg_version)];
508 sprintf(p, "+%s", str);
509 egg_numver++;
510 sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
511 }
512
513 /*
514 static inline void garbage_collect(void)
515 {
516 static u_8bit_t run_cnt = 0;
517
518 if (run_cnt == 3)
519 garbage_collect_tclhash();
520 else
521 run_cnt++;
522 }
523 */
524
525 int main(int argc, char **argv)
526 {
527 int xx, i;
528 char buf[520], s[25];
529 FILE *f;
530 struct sigaction sv;
531 struct chanset_t *chan;
532 egg_timeval_t howlong;
533
534 #ifdef DEBUG
535 /* Make sure it can write core, if you make debug. Else it's pretty
536 * useless (dw)
537 */
538 {
539 #include <sys/resource.h>
540 struct rlimit cdlim;
541
542 cdlim.rlim_cur = RLIM_INFINITY;
543 cdlim.rlim_max = RLIM_INFINITY;
544 setrlimit(RLIMIT_CORE, &cdlim);
545 }
546 #endif
547
548 #ifdef ENABLE_NLS
549 setlocale(LC_MESSAGES, "");
550 bindtextdomain(PACKAGE, LOCALEDIR);
551 textdomain(PACKAGE);
552 #endif
553
554 #include "patch.h"
555 /* Version info! */
556 snprintf(ver, sizeof ver, "%s v%s", PACKAGE, egg_version);
557 snprintf(version, sizeof version, "Eggdrop v%s (C) 1997 Robey Pointer (C) 2002 Eggheads",
558 egg_version);
559 /* Now add on the patchlevel (for Tcl) */
560 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
561 strcat(egg_version, egg_xtra);
562 #ifdef STOP_UAC
563 {
564 int nvpair[2];
565
566 nvpair[0] = SSIN_UACPROC;
567 nvpair[1] = UAC_NOPRINT;
568 setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
569 }
570 #endif
571
572 /* Set up error traps: */
573 sv.sa_handler = got_bus;
574 sigemptyset(&sv.sa_mask);
575 #ifdef SA_RESETHAND
576 sv.sa_flags = SA_RESETHAND;
577 #else
578 sv.sa_flags = 0;
579 #endif
580 sigaction(SIGBUS, &sv, NULL);
581 sv.sa_handler = got_segv;
582 sigaction(SIGSEGV, &sv, NULL);
583 #ifdef SA_RESETHAND
584 sv.sa_flags = 0;
585 #endif
586 sv.sa_handler = got_fpe;
587 sigaction(SIGFPE, &sv, NULL);
588 sv.sa_handler = got_term;
589 sigaction(SIGTERM, &sv, NULL);
590 sv.sa_handler = got_hup;
591 sigaction(SIGHUP, &sv, NULL);
592 sv.sa_handler = got_quit;
593 sigaction(SIGQUIT, &sv, NULL);
594 sv.sa_handler = SIG_IGN;
595 sigaction(SIGPIPE, &sv, NULL);
596 sv.sa_handler = got_ill;
597 sigaction(SIGILL, &sv, NULL);
598 sv.sa_handler = got_alarm;
599 sigaction(SIGALRM, &sv, NULL);
600
601 /* Initialize variables and stuff */
602 timer_get_time(&egg_timeval_now);
603 now = egg_timeval_now.sec;
604 chanset = NULL;
605 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
606 lastmin = nowtm.tm_min;
607 srandom(now % (getpid() + getppid()));
608
609 do_args(argc, argv);
610
611 printf("\n%s\n", version);
612 printf(" *** WARNING: Do NOT run this DEVELOPMENT version for any purpose other than testing.\n\n");
613
614 /* Don't allow eggdrop to run as root */
615 if (((int) getuid() == 0) || ((int) geteuid() == 0))
616 fatal(_("ERROR: Eggdrop will not run as root!"), 0);
617
618 egg = eggdrop_new();
619 script_init();
620 binds_init();
621 modules_init();
622 logfile_init();
623 timer_init();
624 dns_init();
625 core_binds_init();
626 dcc_init();
627 user_init();
628 init_userent();
629 botnet_init();
630 init_net();
631
632 if (backgrd)
633 bg_prepare_split();
634
635 init_tcl(argc, argv);
636
637 strlcpy(s, ctime(&now), sizeof s);
638 strcpy(&s[11], &s[20]);
639 putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
640 if (preload_module[0])
641 module_load(preload_module);
642 chanprog();
643 if (!encrypt_pass) {
644 printf(_("You have installed modules but have not selected an encryption\n\
645 module, please consult the default config file for info.\n"));
646 bg_send_quit(BG_ABORT);
647 exit(1);
648 }
649 i = 0;
650 for (chan = chanset; chan; chan = chan->next)
651 i++;
652 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
653 botnetnick, i, count_users(userlist));
654 cache_miss = 0;
655 cache_hit = 0;
656
657 if (!pid_file[0])
658 snprintf(pid_file, sizeof pid_file, "pid.%s", botnetnick);
659
660 /* Check for pre-existing eggdrop! */
661 f = fopen(pid_file, "r");
662 if (f != NULL) {
663 fgets(s, 10, f);
664 xx = atoi(s);
665 kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
666 is used */
667 if (errno != ESRCH) {
668 printf(_("I detect %s already running from this directory.\n"), botnetnick);
669 printf(_("If this is incorrect, erase the %s\n"), pid_file);
670 bg_send_quit(BG_ABORT);
671 exit(1);
672 }
673 }
674
675 /* Move into background? */
676 if (backgrd) {
677 #ifndef CYGWIN_HACKS
678 bg_do_split();
679 } else { /* !backgrd */
680 #endif
681 xx = getpid();
682 if (xx != 0) {
683 FILE *fp;
684
685 /* Write pid to file */
686 unlink(pid_file);
687 fp = fopen(pid_file, "w");
688 if (fp != NULL) {
689 fprintf(fp, "%u\n", xx);
690 if (fflush(fp)) {
691 /* Let the bot live since this doesn't appear to be a botchk */
692 printf(_("* Warning! Could not write %s file!\n"), pid_file);
693 fclose(fp);
694 unlink(pid_file);
695 } else
696 fclose(fp);
697 } else
698 printf(_("* Warning! Could not write %s file!\n"), pid_file);
699 #ifdef CYGWIN_HACKS
700 printf("Launched into the background (pid: %d)\n\n", xx);
701 #endif
702 }
703 }
704
705 use_stderr = 0; /* Stop writing to stderr now */
706 if (backgrd) {
707 /* Ok, try to disassociate from controlling terminal (finger cross) */
708 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
709 setpgid(0, 0);
710 #endif
711 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
712 freopen("/dev/null", "r", stdin);
713 freopen("/dev/null", "w", stdout);
714 freopen("/dev/null", "w", stderr);
715 #ifdef CYGWIN_HACKS
716 FreeConsole();
717 #endif
718 }
719
720 /* Terminal emulating dcc chat */
721 if (!backgrd && term_z) {
722 int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
723
724 dcc[n].addr[0] = '\0';
725 dcc[n].sock = STDOUT;
726 dcc[n].timeval = now;
727 dcc[n].u.chat->con_flags = conmask;
728 dcc[n].u.chat->strip_flags = STRIP_ALL;
729 dcc[n].status = STAT_ECHO;
730 strcpy(dcc[n].nick, "HQ");
731 strcpy(dcc[n].host, "llama@console");
732 dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
733 /* Make sure there's an innocuous HQ user if needed */
734 if (!dcc[n].user) {
735 userlist = adduser(userlist, dcc[n].nick, "none", "-", USER_PARTY);
736 dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
737 }
738 setsock(STDOUT, 0); /* Entry in net table */
739 dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
740 dcc_chatter(n);
741 }
742
743 online_since = now;
744 autolink_cycle(NULL); /* Hurry and connect to tandem bots */
745 add_help_reference("cmds1.help");
746 add_help_reference("cmds2.help");
747 add_help_reference("core.help");
748 howlong.sec = 1;
749 howlong.usec = 0;
750 timer_create_repeater(&howlong, (Function) core_secondly);
751 add_hook(HOOK_MINUTELY, (Function) core_minutely);
752 add_hook(HOOK_HOURLY, (Function) core_hourly);
753 add_hook(HOOK_REHASH, (Function) event_rehash);
754 add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
755 add_hook(HOOK_USERFILE, (Function) event_save);
756 add_hook(HOOK_BACKUP, (Function) backup_userfile);
757 add_hook(HOOK_DAILY, (Function) event_logfile);
758 add_hook(HOOK_DAILY, (Function) event_resettraffic);
759 add_hook(HOOK_LOADED, (Function) event_loaded);
760
761 call_hook(HOOK_LOADED);
762
763 debug0("main: entering loop");
764 while (1) {
765 int socket_cleanup = 0;
766
767 #if !defined(HAVE_PRE7_5_TCL)
768 /* Process a single tcl event */
769 Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
770 #endif
771
772 /* Lets move some of this here, reducing the numer of actual
773 * calls to periodic_timers
774 */
775 timer_get_time(&egg_timeval_now);
776 now = egg_timeval_now.sec;
777 random(); /* Woop, lets really jumble things */
778 timer_run();
779
780 /* Only do this every so often. */
781 if (!socket_cleanup) {
782 socket_cleanup = 5;
783
784 /* Remove dead dcc entries. */
785 dcc_remove_lost();
786
787 /* Check for server or dcc activity. */
788 dequeue_sockets();
789 } else
790 socket_cleanup--;
791
792 /* Free unused structures. */
793 /* garbage_collect(); */
794
795 xx = sockgets(buf, &i);
796 timer_get_time(&egg_timeval_now);
797 if (xx >= 0) { /* Non-error */
798 int idx;
799
800 for (idx = 0; idx < dcc_total; idx++)
801 if (dcc[idx].sock == xx) {
802 if (dcc[idx].type && dcc[idx].type->activity) {
803 /* Traffic stats */
804 if (dcc[idx].type->name) {
805 if (!strncmp(dcc[idx].type->name, "BOT", 3))
806 itraffic_bn_today += strlen(buf) + 1;
807 else if (!strcmp(dcc[idx].type->name, "SERVER"))
808 itraffic_irc_today += strlen(buf) + 1;
809 else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
810 itraffic_dcc_today += strlen(buf) + 1;
811 else if (!strncmp(dcc[idx].type->name, "FILES", 5))
812 itraffic_dcc_today += strlen(buf) + 1;
813 else if (!strcmp(dcc[idx].type->name, "SEND"))
814 itraffic_trans_today += strlen(buf) + 1;
815 else if (!strncmp(dcc[idx].type->name, "GET", 3))
816 itraffic_trans_today += strlen(buf) + 1;
817 else
818 itraffic_unknown_today += strlen(buf) + 1;
819 }
820 dcc[idx].type->activity(idx, buf, i);
821 } else
822 putlog(LOG_MISC, "*",
823 "!!! untrapped dcc activity: type %s, sock %d",
824 dcc[idx].type->name, dcc[idx].sock);
825 break;
826 }
827 } else if (xx == -1) { /* EOF from someone */
828 int idx;
829
830 if (i == STDOUT && !backgrd)
831 fatal("END OF FILE ON TERMINAL", 0);
832 for (idx = 0; idx < dcc_total; idx++)
833 if (dcc[idx].sock == i) {
834 if (dcc[idx].type && dcc[idx].type->eof)
835 dcc[idx].type->eof(idx);
836 else {
837 putlog(LOG_MISC, "*",
838 "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
839 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
840 killsock(i);
841 lostdcc(idx);
842 }
843 idx = dcc_total + 1;
844 }
845 if (idx == dcc_total) {
846 putlog(LOG_MISC, "*",
847 "(@) EOF socket %d, not a dcc socket, not anything.", i);
848 close(i);
849 killsock(i);
850 }
851 } else if (xx == -2 && errno != EINTR) { /* select() error */
852 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
853 for (i = 0; i < dcc_total; i++) {
854 if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
855 putlog(LOG_MISC, "*",
856 "DCC socket %d (type %d, name '%s') expired -- pfft",
857 dcc[i].sock, dcc[i].type, dcc[i].nick);
858 killsock(dcc[i].sock);
859 lostdcc(i);
860 i--;
861 }
862 }
863 } else if (xx == -3) {
864 call_hook(HOOK_IDLE);
865 socket_cleanup = 0; /* If we've been idle, cleanup & flush */
866 }
867
868 if (do_restart) {
869 if (do_restart == -2)
870 rehash();
871 else {
872 /* Unload as many modules as possible */
873 int f = 1;
874 module_entry *p;
875 Function x;
876 char xx[256];
877
878 /* oops, I guess we should call this event before tcl is restarted */
879 check_bind_event("prerestart");
880
881 while (f) {
882 f = 0;
883 for (p = module_list; p != NULL; p = p->next) {
884 dependancy *d = dependancy_list;
885 int ok = 1;
886
887 while (ok && d) {
888 if (d->needed == p)
889 ok = 0;
890 d = d->next;
891 }
892 if (ok) {
893 strcpy(xx, p->name);
894 if (module_unload(xx, botnetnick) == NULL) {
895 f = 1;
896 break;
897 }
898 }
899 }
900 }
901 p = module_list;
902 if (p && p->next && p->next->next)
903 /* Should be only 2 modules now - blowfish (or some other
904 encryption module) and eggdrop. */
905 putlog(LOG_MISC, "*", _("Stagnant module; there WILL be memory leaks!"));
906 flushlogs();
907 kill_tcl();
908 timer_destroy_all(); /* Destroy all timers. */
909 init_tcl(argc, argv);
910 /* We expect the encryption module as the current module pointed
911 * to by `module_list'.
912 */
913 x = p->funcs[MODCALL_START];
914 /* `NULL' indicates that we just recently restarted. The module
915 * is expected to re-initialise as needed.
916 */
917 x(NULL);
918 rehash();
919 restart_chons();
920 call_hook(HOOK_LOADED);
921 }
922 do_restart = 0;
923 }
924 }
925 }

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