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

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Revision 1.112 - (show annotations) (download) (as text)
Sat Apr 27 18:15:11 2002 UTC (17 years, 5 months ago) by stdarg
Branch: MAIN
Changes since 1.111: +3 -1 lines
File MIME type: text/x-chdr
* Changed some linked variables to new linking method
* Made max_dcc shrinkable down to the last-used dcc slot.

1 /*
2 * main.c -- handles:
3 * core event handling
4 * signal handling
5 * command line arguments
6 *
7 * $Id: main.c,v 1.111 2002/04/01 13:33:33 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 char helpdir[121]; /* Directory of help files (if used) */
103 char textdir[121] = ""; /* Directory for text files that get dumped */
104 time_t online_since; /* Unix-time that the bot loaded up */
105 int make_userfile = 0; /* Using bot in make-userfile mode? (first
106 user to 'hello' becomes master) */
107 char owner[121] = ""; /* Permanent owner(s) of the bot */
108 char pid_file[120]; /* Name of the file for the pid to be
109 stored in */
110 int save_users_at = 0; /* How many minutes past the hour to
111 save the userfile? */
112 int notify_users_at = 0; /* How many minutes past the hour to
113 notify users of notes? */
114 char version[81]; /* Version info (long form) */
115 char ver[41]; /* Version info (short form) */
116 char egg_xtra[2048]; /* Patch info */
117 int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
118 int do_restart = 0; /* .restart has been called, restart asap */
119 int die_on_sighup = 0; /* die if bot receives SIGHUP */
120 int die_on_sigterm = 1; /* die if bot receives SIGTERM */
121 int resolve_timeout = 15; /* hostname/address lookup timeout */
122 char quit_msg[1024]; /* quit message */
123 time_t now; /* duh, now :) */
124 egg_timeval_t egg_timeval_now; /* Same thing, but seconds and microseconds. */
125
126 /* Traffic stats
127 */
128 unsigned long otraffic_irc = 0;
129 unsigned long otraffic_irc_today = 0;
130 unsigned long otraffic_bn = 0;
131 unsigned long otraffic_bn_today = 0;
132 unsigned long otraffic_dcc = 0;
133 unsigned long otraffic_dcc_today = 0;
134 unsigned long otraffic_filesys = 0;
135 unsigned long otraffic_filesys_today = 0;
136 unsigned long otraffic_trans = 0;
137 unsigned long otraffic_trans_today = 0;
138 unsigned long otraffic_unknown = 0;
139 unsigned long otraffic_unknown_today = 0;
140 unsigned long itraffic_irc = 0;
141 unsigned long itraffic_irc_today = 0;
142 unsigned long itraffic_bn = 0;
143 unsigned long itraffic_bn_today = 0;
144 unsigned long itraffic_dcc = 0;
145 unsigned long itraffic_dcc_today = 0;
146 unsigned long itraffic_trans = 0;
147 unsigned long itraffic_trans_today = 0;
148 unsigned long itraffic_unknown = 0;
149 unsigned long itraffic_unknown_today = 0;
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 static void do_arg(char *s)
259 {
260 char x[1024], *z = x;
261 int i;
262
263 if (s[0] == '-')
264 for (i = 1; i < strlen(s); i++) {
265 switch (s[i]) {
266 case 'n':
267 backgrd = 0;
268 break;
269 case 'c':
270 con_chan = 1;
271 term_z = 0;
272 break;
273 case 't':
274 con_chan = 0;
275 term_z = 1;
276 break;
277 case 'm':
278 make_userfile = 1;
279 break;
280 case 'v':
281 strlcpy(x, egg_version, sizeof x);
282 newsplit(&z);
283 newsplit(&z);
284 printf("%s\n", version);
285 if (z[0])
286 printf(" (patches: %s)\n", z);
287 bg_send_quit(BG_ABORT);
288 exit(0);
289 break; /* this should never be reached */
290 case 'h':
291 printf("\n%s\n\n", version);
292 printf(_("Command line arguments:\n\
293 -h help\n\
294 -v print version and exit\n\
295 -n don't go into the background\n\
296 -c (with -n) display channel stats every 10 seconds\n\
297 -t (with -n) use terminal to simulate dcc-chat\n\
298 -m userfile creation mode\n\
299 optional config filename (default 'eggdrop.conf')\n"));
300 printf("\n");
301 bg_send_quit(BG_ABORT);
302 exit(0);
303 break; /* this should never be reached */
304 }
305 } else
306 strlcpy(configfile, s, sizeof configfile);
307 }
308
309 void backup_userfile(void)
310 {
311 char s[125];
312
313 putlog(LOG_MISC, "*", _("Backing up user file..."));
314 snprintf(s, sizeof s, "%s~bak", userfile);
315 copyfile(userfile, s);
316 }
317
318 /* Timer info */
319 static int lastmin = 99;
320 static struct tm nowtm;
321
322 /* Called once a second.
323 */
324 static void core_secondly()
325 {
326 static int cnt = 0;
327 int miltime;
328
329 call_hook(HOOK_SECONDLY); /* Will be removed later */
330 cnt++;
331 if (cnt >= 10) { /* Every 10 seconds */
332 cnt = 0;
333 check_expired_dcc();
334 if (con_chan && !backgrd) {
335 dprintf(DP_STDOUT, "\033[2J\033[1;1H");
336 tell_verbose_status(DP_STDOUT);
337 do_module_report(DP_STDOUT, 0, "server");
338 do_module_report(DP_STDOUT, 0, "channels");
339 }
340 }
341 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
342 if (nowtm.tm_min != lastmin) {
343 int i = 0;
344
345 /* Once a minute */
346 lastmin = (lastmin + 1) % 60;
347 call_hook(HOOK_MINUTELY);
348 check_expired_ignores();
349 autolink_cycle(NULL); /* Attempt autolinks */
350 /* In case for some reason more than 1 min has passed: */
351 while (nowtm.tm_min != lastmin) {
352 /* Timer drift, dammit */
353 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
354 i++;
355 lastmin = (lastmin + 1) % 60;
356 call_hook(HOOK_MINUTELY);
357 }
358 if (i > 1)
359 putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
360 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
361 if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
362 call_hook(HOOK_5MINUTELY);
363 if (!miltime) { /* At midnight */
364 char s[25];
365
366 strlcpy(s, ctime(&now), sizeof s);
367 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
368 call_hook(HOOK_BACKUP);
369 call_hook(HOOK_DAILY);
370 }
371 }
372 if (nowtm.tm_min == notify_users_at)
373 call_hook(HOOK_HOURLY);
374 }
375 }
376
377 static void core_minutely()
378 {
379 check_bind_time(&nowtm);
380 }
381
382 static void core_hourly()
383 {
384 write_userfile(-1);
385 }
386
387 static void event_rehash()
388 {
389 check_bind_event("rehash");
390 }
391
392 static void event_prerehash()
393 {
394 check_bind_event("prerehash");
395 }
396
397 static void event_save()
398 {
399 check_bind_event("save");
400 }
401
402 static void event_logfile()
403 {
404 check_bind_event("logfile");
405 }
406
407 static void event_resettraffic()
408 {
409 otraffic_irc += otraffic_irc_today;
410 itraffic_irc += itraffic_irc_today;
411 otraffic_bn += otraffic_bn_today;
412 itraffic_bn += itraffic_bn_today;
413 otraffic_dcc += otraffic_dcc_today;
414 itraffic_dcc += itraffic_dcc_today;
415 otraffic_unknown += otraffic_unknown_today;
416 itraffic_unknown += itraffic_unknown_today;
417 otraffic_trans += otraffic_trans_today;
418 itraffic_trans += itraffic_trans_today;
419 otraffic_irc_today = otraffic_bn_today = 0;
420 otraffic_dcc_today = otraffic_unknown_today = 0;
421 itraffic_irc_today = itraffic_bn_today = 0;
422 itraffic_dcc_today = itraffic_unknown_today = 0;
423 itraffic_trans_today = otraffic_trans_today = 0;
424 }
425
426 static void event_loaded()
427 {
428 check_bind_event("loaded");
429 }
430
431 void kill_tcl();
432 extern module_entry *module_list;
433 void restart_chons();
434
435 int init_userent(), init_net(),
436 init_tcl(int, char **);
437 int user_init();
438 void botnet_init();
439 void dns_init();
440 void binds_init();
441 void dcc_init();
442
443 void patch(const char *str)
444 {
445 char *p = strchr(egg_version, '+');
446
447 if (!p)
448 p = &egg_version[strlen(egg_version)];
449 sprintf(p, "+%s", str);
450 egg_numver++;
451 sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
452 }
453
454 /*
455 static inline void garbage_collect(void)
456 {
457 static u_8bit_t run_cnt = 0;
458
459 if (run_cnt == 3)
460 garbage_collect_tclhash();
461 else
462 run_cnt++;
463 }
464 */
465
466 int main(int argc, char **argv)
467 {
468 int xx, i;
469 char buf[520], s[25];
470 FILE *f;
471 struct sigaction sv;
472 struct chanset_t *chan;
473 egg_timeval_t howlong;
474
475 #ifdef DEBUG
476 /* Make sure it can write core, if you make debug. Else it's pretty
477 * useless (dw)
478 */
479 {
480 #include <sys/resource.h>
481 struct rlimit cdlim;
482
483 cdlim.rlim_cur = RLIM_INFINITY;
484 cdlim.rlim_max = RLIM_INFINITY;
485 setrlimit(RLIMIT_CORE, &cdlim);
486 }
487 #endif
488
489 #ifdef ENABLE_NLS
490 setlocale(LC_MESSAGES, "");
491 bindtextdomain(PACKAGE, LOCALEDIR);
492 textdomain(PACKAGE);
493 #endif
494
495 #include "patch.h"
496 /* Version info! */
497 snprintf(ver, sizeof ver, "eggdrop v%s", egg_version);
498 snprintf(version, sizeof version, "Eggdrop v%s (C) 1997 Robey Pointer (C) 2002 Eggheads",
499 egg_version);
500 /* Now add on the patchlevel (for Tcl) */
501 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
502 strcat(egg_version, egg_xtra);
503 #ifdef STOP_UAC
504 {
505 int nvpair[2];
506
507 nvpair[0] = SSIN_UACPROC;
508 nvpair[1] = UAC_NOPRINT;
509 setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
510 }
511 #endif
512
513 /* Set up error traps: */
514 sv.sa_handler = got_bus;
515 sigemptyset(&sv.sa_mask);
516 #ifdef SA_RESETHAND
517 sv.sa_flags = SA_RESETHAND;
518 #else
519 sv.sa_flags = 0;
520 #endif
521 sigaction(SIGBUS, &sv, NULL);
522 sv.sa_handler = got_segv;
523 sigaction(SIGSEGV, &sv, NULL);
524 #ifdef SA_RESETHAND
525 sv.sa_flags = 0;
526 #endif
527 sv.sa_handler = got_fpe;
528 sigaction(SIGFPE, &sv, NULL);
529 sv.sa_handler = got_term;
530 sigaction(SIGTERM, &sv, NULL);
531 sv.sa_handler = got_hup;
532 sigaction(SIGHUP, &sv, NULL);
533 sv.sa_handler = got_quit;
534 sigaction(SIGQUIT, &sv, NULL);
535 sv.sa_handler = SIG_IGN;
536 sigaction(SIGPIPE, &sv, NULL);
537 sv.sa_handler = got_ill;
538 sigaction(SIGILL, &sv, NULL);
539 sv.sa_handler = got_alarm;
540 sigaction(SIGALRM, &sv, NULL);
541
542 /* Initialize variables and stuff */
543 timer_get_time(&egg_timeval_now);
544 now = egg_timeval_now.sec;
545 chanset = NULL;
546 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
547 lastmin = nowtm.tm_min;
548 srandom(now % (getpid() + getppid()));
549 if (argc > 1)
550 for (i = 1; i < argc; i++)
551 do_arg(argv[i]);
552 printf("\n%s\n", version);
553 printf(" *** WARNING: Do NOT run this DEVELOPMENT version for any purpose other than testing.\n\n");
554
555 /* Don't allow eggdrop to run as root */
556 if (((int) getuid() == 0) || ((int) geteuid() == 0))
557 fatal(_("ERROR: Eggdrop will not run as root!"), 0);
558
559 egg = eggdrop_new();
560 script_init();
561 binds_init();
562 modules_init();
563 logfile_init();
564 timer_init();
565 dns_init();
566 core_binds_init();
567 dcc_init();
568 user_init();
569 init_userent();
570 botnet_init();
571 init_net();
572
573 if (backgrd)
574 bg_prepare_split();
575
576 init_tcl(argc, argv);
577
578 strlcpy(s, ctime(&now), sizeof s);
579 strcpy(&s[11], &s[20]);
580 putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
581 chanprog();
582 if (!encrypt_pass) {
583 printf(_("You have installed modules but have not selected an encryption\n\
584 module, please consult the default config file for info.\n"));
585 bg_send_quit(BG_ABORT);
586 exit(1);
587 }
588 i = 0;
589 for (chan = chanset; chan; chan = chan->next)
590 i++;
591 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
592 botnetnick, i, count_users(userlist));
593 cache_miss = 0;
594 cache_hit = 0;
595
596 if (!pid_file[0])
597 snprintf(pid_file, sizeof pid_file, "pid.%s", botnetnick);
598
599 /* Check for pre-existing eggdrop! */
600 f = fopen(pid_file, "r");
601 if (f != NULL) {
602 fgets(s, 10, f);
603 xx = atoi(s);
604 kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
605 is used */
606 if (errno != ESRCH) {
607 printf(_("I detect %s already running from this directory.\n"), botnetnick);
608 printf(_("If this is incorrect, erase the %s\n"), pid_file);
609 bg_send_quit(BG_ABORT);
610 exit(1);
611 }
612 }
613
614 /* Move into background? */
615 if (backgrd) {
616 #ifndef CYGWIN_HACKS
617 bg_do_split();
618 } else { /* !backgrd */
619 #endif
620 xx = getpid();
621 if (xx != 0) {
622 FILE *fp;
623
624 /* Write pid to file */
625 unlink(pid_file);
626 fp = fopen(pid_file, "w");
627 if (fp != NULL) {
628 fprintf(fp, "%u\n", xx);
629 if (fflush(fp)) {
630 /* Let the bot live since this doesn't appear to be a botchk */
631 printf(_("* Warning! Could not write %s file!\n"), pid_file);
632 fclose(fp);
633 unlink(pid_file);
634 } else
635 fclose(fp);
636 } else
637 printf(_("* Warning! Could not write %s file!\n"), pid_file);
638 #ifdef CYGWIN_HACKS
639 printf("Launched into the background (pid: %d)\n\n", xx);
640 #endif
641 }
642 }
643
644 use_stderr = 0; /* Stop writing to stderr now */
645 if (backgrd) {
646 /* Ok, try to disassociate from controlling terminal (finger cross) */
647 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
648 setpgid(0, 0);
649 #endif
650 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
651 freopen("/dev/null", "r", stdin);
652 freopen("/dev/null", "w", stdout);
653 freopen("/dev/null", "w", stderr);
654 #ifdef CYGWIN_HACKS
655 FreeConsole();
656 #endif
657 }
658
659 /* Terminal emulating dcc chat */
660 if (!backgrd && term_z) {
661 int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
662
663 dcc[n].addr[0] = '\0';
664 dcc[n].sock = STDOUT;
665 dcc[n].timeval = now;
666 dcc[n].u.chat->con_flags = conmask;
667 dcc[n].u.chat->strip_flags = STRIP_ALL;
668 dcc[n].status = STAT_ECHO;
669 strcpy(dcc[n].nick, "HQ");
670 strcpy(dcc[n].host, "llama@console");
671 dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
672 /* Make sure there's an innocuous HQ user if needed */
673 if (!dcc[n].user) {
674 userlist = adduser(userlist, dcc[n].nick, "none", "-", USER_PARTY);
675 dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
676 }
677 setsock(STDOUT, 0); /* Entry in net table */
678 dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
679 dcc_chatter(n);
680 }
681
682 online_since = now;
683 autolink_cycle(NULL); /* Hurry and connect to tandem bots */
684 add_help_reference("cmds1.help");
685 add_help_reference("cmds2.help");
686 add_help_reference("core.help");
687 howlong.sec = 1;
688 howlong.usec = 0;
689 timer_create_repeater(&howlong, (Function) core_secondly);
690 add_hook(HOOK_MINUTELY, (Function) core_minutely);
691 add_hook(HOOK_HOURLY, (Function) core_hourly);
692 add_hook(HOOK_REHASH, (Function) event_rehash);
693 add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
694 add_hook(HOOK_USERFILE, (Function) event_save);
695 add_hook(HOOK_BACKUP, (Function) backup_userfile);
696 add_hook(HOOK_DAILY, (Function) event_logfile);
697 add_hook(HOOK_DAILY, (Function) event_resettraffic);
698 add_hook(HOOK_LOADED, (Function) event_loaded);
699
700 call_hook(HOOK_LOADED);
701
702 debug0("main: entering loop");
703 while (1) {
704 int socket_cleanup = 0;
705
706 #if !defined(HAVE_PRE7_5_TCL)
707 /* Process a single tcl event */
708 Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
709 #endif
710
711 /* Lets move some of this here, reducing the numer of actual
712 * calls to periodic_timers
713 */
714 timer_get_time(&egg_timeval_now);
715 now = egg_timeval_now.sec;
716 random(); /* Woop, lets really jumble things */
717 timer_run();
718
719 /* Only do this every so often. */
720 if (!socket_cleanup) {
721 socket_cleanup = 5;
722
723 /* Remove dead dcc entries. */
724 dcc_remove_lost();
725
726 /* Check for server or dcc activity. */
727 dequeue_sockets();
728 } else
729 socket_cleanup--;
730
731 /* Free unused structures. */
732 /* garbage_collect(); */
733
734 xx = sockgets(buf, &i);
735 timer_get_time(&egg_timeval_now);
736 if (xx >= 0) { /* Non-error */
737 int idx;
738
739 for (idx = 0; idx < dcc_total; idx++)
740 if (dcc[idx].sock == xx) {
741 if (dcc[idx].type && dcc[idx].type->activity) {
742 /* Traffic stats */
743 if (dcc[idx].type->name) {
744 if (!strncmp(dcc[idx].type->name, "BOT", 3))
745 itraffic_bn_today += strlen(buf) + 1;
746 else if (!strcmp(dcc[idx].type->name, "SERVER"))
747 itraffic_irc_today += strlen(buf) + 1;
748 else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
749 itraffic_dcc_today += strlen(buf) + 1;
750 else if (!strncmp(dcc[idx].type->name, "FILES", 5))
751 itraffic_dcc_today += strlen(buf) + 1;
752 else if (!strcmp(dcc[idx].type->name, "SEND"))
753 itraffic_trans_today += strlen(buf) + 1;
754 else if (!strncmp(dcc[idx].type->name, "GET", 3))
755 itraffic_trans_today += strlen(buf) + 1;
756 else
757 itraffic_unknown_today += strlen(buf) + 1;
758 }
759 dcc[idx].type->activity(idx, buf, i);
760 } else
761 putlog(LOG_MISC, "*",
762 "!!! untrapped dcc activity: type %s, sock %d",
763 dcc[idx].type->name, dcc[idx].sock);
764 break;
765 }
766 } else if (xx == -1) { /* EOF from someone */
767 int idx;
768
769 if (i == STDOUT && !backgrd)
770 fatal("END OF FILE ON TERMINAL", 0);
771 for (idx = 0; idx < dcc_total; idx++)
772 if (dcc[idx].sock == i) {
773 if (dcc[idx].type && dcc[idx].type->eof)
774 dcc[idx].type->eof(idx);
775 else {
776 putlog(LOG_MISC, "*",
777 "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
778 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
779 killsock(i);
780 lostdcc(idx);
781 }
782 idx = dcc_total + 1;
783 }
784 if (idx == dcc_total) {
785 putlog(LOG_MISC, "*",
786 "(@) EOF socket %d, not a dcc socket, not anything.", i);
787 close(i);
788 killsock(i);
789 }
790 } else if (xx == -2 && errno != EINTR) { /* select() error */
791 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
792 for (i = 0; i < dcc_total; i++) {
793 if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
794 putlog(LOG_MISC, "*",
795 "DCC socket %d (type %d, name '%s') expired -- pfft",
796 dcc[i].sock, dcc[i].type, dcc[i].nick);
797 killsock(dcc[i].sock);
798 lostdcc(i);
799 i--;
800 }
801 }
802 } else if (xx == -3) {
803 call_hook(HOOK_IDLE);
804 socket_cleanup = 0; /* If we've been idle, cleanup & flush */
805 }
806
807 if (do_restart) {
808 if (do_restart == -2)
809 rehash();
810 else {
811 /* Unload as many modules as possible */
812 int f = 1;
813 module_entry *p;
814 Function x;
815 char xx[256];
816
817 /* oops, I guess we should call this event before tcl is restarted */
818 check_bind_event("prerestart");
819
820 while (f) {
821 f = 0;
822 for (p = module_list; p != NULL; p = p->next) {
823 dependancy *d = dependancy_list;
824 int ok = 1;
825
826 while (ok && d) {
827 if (d->needed == p)
828 ok = 0;
829 d = d->next;
830 }
831 if (ok) {
832 strcpy(xx, p->name);
833 if (module_unload(xx, botnetnick) == NULL) {
834 f = 1;
835 break;
836 }
837 }
838 }
839 }
840 p = module_list;
841 if (p && p->next && p->next->next)
842 /* Should be only 2 modules now - blowfish (or some other
843 encryption module) and eggdrop. */
844 putlog(LOG_MISC, "*", _("Stagnant module; there WILL be memory leaks!"));
845 flushlogs();
846 kill_tcl();
847 timer_destroy_all(); /* Destroy all timers. */
848 init_tcl(argc, argv);
849 /* We expect the encryption module as the current module pointed
850 * to by `module_list'.
851 */
852 x = p->funcs[MODCALL_START];
853 /* `NULL' indicates that we just recently restarted. The module
854 * is expected to re-initialise as needed.
855 */
856 x(NULL);
857 rehash();
858 restart_chons();
859 call_hook(HOOK_LOADED);
860 }
861 do_restart = 0;
862 }
863 }
864 }

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