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

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Revision 1.133 - (show annotations) (download) (as text)
Tue Feb 11 02:32:05 2003 UTC (16 years, 5 months ago) by stdarg
Branch: MAIN
Changes since 1.132: +5 -2 lines
File MIME type: text/x-chdr
* Some initial config code to play around with.

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 1.132 2003/02/03 11:41:34 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] = "eggdrop.conf"; /* Name of the config file */
127 static char preload_module[121] = ""; /* Name of the module to preload */
128 char helpdir[121] = "help/"; /* Directory of help files (if used) */
129 char textdir[121] = "text/"; /* Directory for text files that get dumped */
130 time_t online_since; /* Unix-time that the bot loaded up */
131 int make_userfile = 0; /* Using bot in make-userfile mode? (first
132 user to 'hello' becomes master) */
133 char owner[121] = ""; /* Permanent owner(s) of the bot */
134 char pid_file[120]; /* Name of the file for the pid to be
135 stored in */
136 int save_users_at = 0; /* How many minutes past the hour to
137 save the userfile? */
138 int notify_users_at = 0; /* How many minutes past the hour to
139 notify users of notes? */
140 char version[81]; /* Version info (long form) */
141 char ver[41]; /* Version info (short form) */
142 char egg_xtra[2048]; /* Patch info */
143 int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
144 int do_restart = 0; /* .restart has been called, restart asap */
145 int die_on_sighup = 0; /* die if bot receives SIGHUP */
146 int die_on_sigterm = 1; /* die if bot receives SIGTERM */
147 int resolve_timeout = 15; /* hostname/address lookup timeout */
148 char quit_msg[1024]; /* quit message */
149 time_t now; /* duh, now :) */
150 egg_timeval_t egg_timeval_now; /* Same thing, but seconds and microseconds. */
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 /* Timer info */
369 static int lastmin = 99;
370 static struct tm nowtm;
371
372 /* Called once a second.
373 */
374 static void core_secondly()
375 {
376 static int cnt = 0;
377 int miltime;
378
379 call_hook(HOOK_SECONDLY); /* Will be removed later */
380 cnt++;
381 if (cnt >= 10) { /* Every 10 seconds */
382 cnt = 0;
383 check_expired_dcc();
384 if (con_chan && !backgrd) {
385 dprintf(DP_STDOUT, "\033[2J\033[1;1H");
386 //tell_verbose_status(DP_STDOUT);
387 do_module_report(DP_STDOUT, 0, "server");
388 do_module_report(DP_STDOUT, 0, "channels");
389 }
390 }
391 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
392 if (nowtm.tm_min != lastmin) {
393 int i = 0;
394
395 /* Once a minute */
396 lastmin = (lastmin + 1) % 60;
397 call_hook(HOOK_MINUTELY);
398 check_expired_ignores();
399 /* In case for some reason more than 1 min has passed: */
400 while (nowtm.tm_min != lastmin) {
401 /* Timer drift, dammit */
402 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
403 i++;
404 lastmin = (lastmin + 1) % 60;
405 call_hook(HOOK_MINUTELY);
406 }
407 if (i > 1)
408 putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
409 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
410 if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
411 call_hook(HOOK_5MINUTELY);
412 if (!miltime) { /* At midnight */
413 char s[25];
414
415 strlcpy(s, ctime(&now), sizeof s);
416 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
417 call_hook(HOOK_BACKUP);
418 call_hook(HOOK_DAILY);
419 }
420 }
421 if (nowtm.tm_min == notify_users_at)
422 call_hook(HOOK_HOURLY);
423 }
424 }
425
426 static void core_minutely()
427 {
428 check_bind_time(&nowtm);
429 }
430
431 static void core_hourly()
432 {
433 write_userfile(-1);
434 }
435
436 static void event_rehash()
437 {
438 check_bind_event("rehash");
439 }
440
441 static void event_prerehash()
442 {
443 check_bind_event("prerehash");
444 }
445
446 static void event_save()
447 {
448 check_bind_event("save");
449 }
450
451 static void event_logfile()
452 {
453 check_bind_event("logfile");
454 }
455
456 static void event_loaded()
457 {
458 check_bind_event("loaded");
459 }
460
461 void kill_tcl();
462 extern module_entry *module_list;
463
464 int init_userent(), init_net(), init_tcl(int, char **);
465 void core_party_init();
466 void core_config_init();
467 void telnet_init();
468 void dns_init();
469 void binds_init();
470 void dcc_init();
471
472 void patch(const char *str)
473 {
474 char *p = strchr(egg_version, '+');
475
476 if (!p)
477 p = &egg_version[strlen(egg_version)];
478 sprintf(p, "+%s", str);
479 egg_numver++;
480 sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
481 }
482
483 /*
484 static inline void garbage_collect(void)
485 {
486 static u_8bit_t run_cnt = 0;
487
488 if (run_cnt == 3)
489 garbage_collect_tclhash();
490 else
491 run_cnt++;
492 }
493 */
494
495 int main(int argc, char **argv)
496 {
497 int xx, i;
498 char buf[520], s[25];
499 FILE *f;
500 struct sigaction sv;
501 struct chanset_t *chan;
502 egg_timeval_t howlong;
503 int timeout;
504
505 #ifdef DEBUG
506 /* Make sure it can write core, if you make debug. Else it's pretty
507 * useless (dw)
508 */
509 {
510 #include <sys/resource.h>
511 struct rlimit cdlim;
512
513 cdlim.rlim_cur = RLIM_INFINITY;
514 cdlim.rlim_max = RLIM_INFINITY;
515 setrlimit(RLIMIT_CORE, &cdlim);
516 }
517 #endif
518
519 #ifdef ENABLE_NLS
520 setlocale(LC_MESSAGES, "");
521 bindtextdomain(PACKAGE, LOCALEDIR);
522 textdomain(PACKAGE);
523 #endif
524
525 #include "patch.h"
526 /* Version info! */
527 snprintf(ver, sizeof ver, "%s v%s", PACKAGE, egg_version);
528 snprintf(version, sizeof version, "Eggdrop v%s (C) 1997 Robey Pointer (C) 2003 Eggheads",
529 egg_version);
530 /* Now add on the patchlevel (for Tcl) */
531 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
532 strcat(egg_version, egg_xtra);
533 #ifdef STOP_UAC
534 {
535 int nvpair[2];
536
537 nvpair[0] = SSIN_UACPROC;
538 nvpair[1] = UAC_NOPRINT;
539 setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
540 }
541 #endif
542
543 /* Set up error traps: */
544 sv.sa_handler = got_bus;
545 sigemptyset(&sv.sa_mask);
546 #ifdef SA_RESETHAND
547 sv.sa_flags = SA_RESETHAND;
548 #else
549 sv.sa_flags = 0;
550 #endif
551 sigaction(SIGBUS, &sv, NULL);
552 sv.sa_handler = got_segv;
553 sigaction(SIGSEGV, &sv, NULL);
554 #ifdef SA_RESETHAND
555 sv.sa_flags = 0;
556 #endif
557 sv.sa_handler = got_fpe;
558 sigaction(SIGFPE, &sv, NULL);
559 sv.sa_handler = got_term;
560 sigaction(SIGTERM, &sv, NULL);
561 sv.sa_handler = got_hup;
562 sigaction(SIGHUP, &sv, NULL);
563 sv.sa_handler = got_quit;
564 sigaction(SIGQUIT, &sv, NULL);
565 sv.sa_handler = SIG_IGN;
566 sigaction(SIGPIPE, &sv, NULL);
567 sv.sa_handler = got_ill;
568 sigaction(SIGILL, &sv, NULL);
569 sv.sa_handler = got_alarm;
570 sigaction(SIGALRM, &sv, NULL);
571
572 /* Initialize variables and stuff */
573 timer_update_now(&egg_timeval_now);
574 now = egg_timeval_now.sec;
575 chanset = NULL;
576 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
577 lastmin = nowtm.tm_min;
578 srandom(now % (getpid() + getppid()));
579
580 do_args(argc, argv);
581
582 printf("\n%s\n", version);
583 printf(" *** WARNING: Do NOT run this DEVELOPMENT version for any purpose other than testing.\n\n");
584
585 /* Don't allow eggdrop to run as root */
586 if (((int) getuid() == 0) || ((int) geteuid() == 0))
587 fatal(_("ERROR: Eggdrop will not run as root!"), 0);
588
589 egg = eggdrop_new();
590 core_config_init();
591 egglog_init();
592 logfile_init();
593 script_init();
594 binds_init();
595 user_init();
596 if (core_config.userfile) user_load(core_config.userfile);
597 partyline_init();
598 core_party_init();
599 telnet_init();
600 modules_init();
601 logfile_init();
602 dns_init();
603 egg_dns_init();
604 core_binds_init();
605 dcc_init();
606 init_userent();
607 init_net();
608 traffic_init();
609
610 if (backgrd)
611 bg_prepare_split();
612
613 init_tcl(argc, argv);
614
615 strlcpy(s, ctime(&now), sizeof s);
616 strcpy(&s[11], &s[20]);
617 putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
618 if (preload_module[0])
619 module_load(preload_module);
620 chanprog();
621 if (!encrypt_pass) {
622 printf(_("You have installed modules but have not selected an encryption\n\
623 module, please consult the default config file for info.\n"));
624 bg_send_quit(BG_ABORT);
625 exit(1);
626 }
627 i = 0;
628 for (chan = chanset; chan; chan = chan->next)
629 i++;
630 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.", myname, 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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