/[cvs]/eggdrop1.9/src/main.c
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Contents of /eggdrop1.9/src/main.c

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Revision 1.93 - (show annotations) (download) (as text)
Sat Oct 20 08:04:22 2001 UTC (17 years, 10 months ago) by guppy
Branch: MAIN
Changes since 1.92: +2 -1 lines
File MIME type: text/x-chdr
* Okay, after talking to various #eggdrop people and seeing x+1 people running eggdrop1.7 as production bots -- I added a
small warning to the output of ./eggdrop for 1.7 that tells them this is a development version and that they shouldn't run it
unless they are testing it. Sound good? It better :P~ hehe

1 /*
2 * main.c -- handles:
3 * core event handling
4 * signal handling
5 * command line arguments
6 * context and assert debugging
7 *
8 * $Id: main.c,v 1.92 2001/10/19 05:26:32 guppy Exp $
9 */
10 /*
11 * Copyright (C) 1997 Robey Pointer
12 * Copyright (C) 1999, 2000, 2001 Eggheads Development Team
13 *
14 * This program is free software; you can redistribute it and/or
15 * modify it under the terms of the GNU General Public License
16 * as published by the Free Software Foundation; either version 2
17 * of the License, or (at your option) any later version.
18 *
19 * This program is distributed in the hope that it will be useful,
20 * but WITHOUT ANY WARRANTY; without even the implied warranty of
21 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22 * GNU General Public License for more details.
23 *
24 * You should have received a copy of the GNU General Public License
25 * along with this program; if not, write to the Free Software
26 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27 */
28 /*
29 * The author (Robey Pointer) can be reached at: robey@netcom.com
30 * NOTE: Robey is no long working on this code, there is a discussion
31 * list available at eggheads@eggheads.org.
32 */
33
34 #include "main.h"
35 #include <fcntl.h>
36 #include <time.h>
37 #include <errno.h>
38 #include <signal.h>
39 #include <netdb.h>
40 #include <setjmp.h>
41
42 #include <locale.h>
43
44 #ifdef STOP_UAC /* osf/1 complains a lot */
45 #include <sys/sysinfo.h>
46 #define UAC_NOPRINT 0x00000001 /* Don't report unaligned fixups */
47 #endif
48 /* Some systems have a working sys/wait.h even though configure will
49 * decide it's not bsd compatable. Oh well.
50 */
51
52 #include "chan.h"
53 #include "modules.h"
54 #include "tandem.h"
55 #include "bg.h"
56 #include "egg_timer.h"
57 #include "core_binds.h"
58
59 #include "adns/adns.h"
60
61 #ifdef CYGWIN_HACKS
62 #include <windows.h>
63 #endif
64
65 #ifndef _POSIX_SOURCE
66 /* Solaris needs this */
67 #define _POSIX_SOURCE 1
68 #endif
69
70 extern char origbotname[], userfile[], botnetnick[];
71 extern int dcc_total, conmask, cache_hit, cache_miss,
72 max_logs, quick_logs;
73 extern struct dcc_t *dcc;
74 extern struct userrec *userlist;
75 extern struct chanset_t *chanset;
76 extern Tcl_Interp *interp;
77 extern tcl_timer_t *timer,
78 *utimer;
79 extern jmp_buf alarmret;
80
81
82 /*
83 * Please use the PATCH macro instead of directly altering the version
84 * string from now on (it makes it much easier to maintain patches).
85 * Also please read the README file regarding your rights to distribute
86 * modified versions of this bot.
87 */
88
89 char egg_version[1024] = VERSION;
90 int egg_numver = VERSION_NUM;
91
92 char notify_new[121] = ""; /* Person to send a note to for new users */
93 int default_flags = 0; /* Default user flags and */
94 int default_uflags = 0; /* Default userdefinied flags for people
95 who say 'hello' or for .adduser */
96
97 int backgrd = 1; /* Run in the background? */
98 int con_chan = 0; /* Foreground: constantly display channel
99 stats? */
100 int term_z = 0; /* Foreground: use the terminal as a party
101 line? */
102 char configfile[121] = "eggdrop.conf"; /* Name of the config file */
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
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 #ifdef DEBUG_CONTEXT
152 /* Context storage for fatal crashes */
153 char cx_file[16][30];
154 char cx_note[16][256];
155 int cx_line[16];
156 int cx_ptr = 0;
157 #endif
158
159
160 void fatal(const char *s, int recoverable)
161 {
162 int i;
163
164 putlog(LOG_MISC, "*", "* %s", s);
165 flushlogs();
166 for (i = 0; i < dcc_total; i++)
167 if (dcc[i].sock >= 0)
168 killsock(dcc[i].sock);
169 unlink(pid_file);
170 if (!recoverable) {
171 bg_send_quit(BG_ABORT);
172 exit(1);
173 }
174 }
175
176 static void check_expired_dcc()
177 {
178 int i;
179
180 for (i = 0; i < dcc_total; i++)
181 if (dcc[i].type && dcc[i].type->timeout_val &&
182 ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
183 if (dcc[i].type->timeout)
184 dcc[i].type->timeout(i);
185 else if (dcc[i].type->eof)
186 dcc[i].type->eof(i);
187 else
188 continue;
189 /* Only timeout 1 socket per cycle, too risky for more */
190 return;
191 }
192 }
193
194 #ifdef DEBUG_CONTEXT
195 static int nested_debug = 0;
196
197 void write_debug()
198 {
199 int x;
200 char s[25];
201 int y;
202
203 if (nested_debug) {
204 /* Yoicks, if we have this there's serious trouble!
205 * All of these are pretty reliable, so we'll try these.
206 *
207 * NOTE: dont try and display context-notes in here, it's
208 * _not_ safe <cybah>
209 */
210 x = creat("DEBUG.DEBUG", 0644);
211 setsock(x, SOCK_NONSOCK);
212 if (x >= 0) {
213 strncpyz(s, ctime(&now), sizeof s);
214 dprintf(-x, "Debug (%s) written %s\n", ver, s);
215 dprintf(-x, "Please report problem to bugs@eggheads.org\n");
216 dprintf(-x, "after a visit to http://www.eggheads.org/bugzilla/\n");
217 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
218 dprintf(-x, "Context: ");
219 cx_ptr = cx_ptr & 15;
220 for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
221 dprintf(-x, "%s/%d,\n ", cx_file[y], cx_line[y]);
222 dprintf(-x, "%s/%d\n\n", cx_file[y], cx_line[y]);
223 killsock(x);
224 close(x);
225 }
226 bg_send_quit(BG_ABORT);
227 exit(1); /* Dont even try & tell people about, that may
228 have caused the fault last time. */
229 } else
230 nested_debug = 1;
231 putlog(LOG_MISC, "*", "* Last context: %s/%d [%s]", cx_file[cx_ptr],
232 cx_line[cx_ptr], cx_note[cx_ptr][0] ? cx_note[cx_ptr] : "");
233 putlog(LOG_MISC, "*", "* Please REPORT this BUG!");
234 putlog(LOG_MISC, "*", "* Check doc/BUG-REPORT on how to do so.");
235 x = creat("DEBUG", 0644);
236 setsock(x, SOCK_NONSOCK);
237 if (x < 0) {
238 putlog(LOG_MISC, "*", "* Failed to write DEBUG");
239 } else {
240 strncpyz(s, ctime(&now), sizeof s);
241 dprintf(-x, "Debug (%s) written %s\n", ver, s);
242 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
243 #ifdef STATIC
244 dprintf(-x, "STATICALLY LINKED\n");
245 #endif
246
247 /* info library */
248 dprintf(-x, "TCL library: %s\n",
249 ((interp) && (Tcl_Eval(interp, "info library") == TCL_OK)) ?
250 interp->result : "*unknown*");
251
252 /* info tclversion/patchlevel */
253 dprintf(-x, "TCL version: %s (header version %s)\n",
254 ((interp) && (Tcl_Eval(interp, "info patchlevel") == TCL_OK)) ?
255 interp->result : (Tcl_Eval(interp, "info tclversion") == TCL_OK) ?
256 interp->result : "*unknown*", TCL_PATCH_LEVEL ? TCL_PATCH_LEVEL :
257 "*unknown*");
258
259 #if HAVE_TCL_THREADS
260 dprintf(-x, "TCL is threaded\n");
261 #endif
262
263 #ifdef CCFLAGS
264 dprintf(-x, "Compile flags: %s\n", CCFLAGS);
265 #endif
266 #ifdef LDFLAGS
267 dprintf(-x, "Link flags: %s\n", LDFLAGS);
268 #endif
269 #ifdef STRIPFLAGS
270 dprintf(-x, "Strip flags: %s\n", STRIPFLAGS);
271 #endif
272
273 dprintf(-x, "Context: ");
274 cx_ptr = cx_ptr & 15;
275 for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
276 dprintf(-x, "%s/%d, [%s]\n ", cx_file[y], cx_line[y],
277 (cx_note[y][0]) ? cx_note[y] : "");
278 dprintf(-x, "%s/%d [%s]\n\n", cx_file[cx_ptr], cx_line[cx_ptr],
279 (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
280 tell_dcc(-x);
281 dprintf(-x, "\n");
282 tell_netdebug(-x);
283 killsock(x);
284 close(x);
285 putlog(LOG_MISC, "*", "* Wrote DEBUG");
286 }
287 }
288 #endif
289
290 static void got_bus(int z)
291 {
292 #ifdef DEBUG_CONTEXT
293 write_debug();
294 #endif
295 fatal("BUS ERROR -- CRASHING!", 1);
296 #ifdef SA_RESETHAND
297 kill(getpid(), SIGBUS);
298 #else
299 bg_send_quit(BG_ABORT);
300 exit(1);
301 #endif
302 }
303
304 static void got_segv(int z)
305 {
306 #ifdef DEBUG_CONTEXT
307 write_debug();
308 #endif
309 fatal("SEGMENT VIOLATION -- CRASHING!", 1);
310 #ifdef SA_RESETHAND
311 kill(getpid(), SIGSEGV);
312 #else
313 bg_send_quit(BG_ABORT);
314 exit(1);
315 #endif
316 }
317
318 static void got_fpe(int z)
319 {
320 #ifdef DEBUG_CONTEXT
321 write_debug();
322 #endif
323 fatal("FLOATING POINT ERROR -- CRASHING!", 0);
324 }
325
326 static void got_term(int z)
327 {
328 write_userfile(-1);
329 check_bind_event("sigterm");
330 if (die_on_sigterm) {
331 fatal("TERMINATE SIGNAL -- SIGNING OFF", 0);
332 } else {
333 putlog(LOG_MISC, "*", "RECEIVED TERMINATE SIGNAL (IGNORING)");
334 }
335 }
336
337 static void got_quit(int z)
338 {
339 check_bind_event("sigquit");
340 putlog(LOG_MISC, "*", "RECEIVED QUIT SIGNAL (IGNORING)");
341 return;
342 }
343
344 static void got_hup(int z)
345 {
346 write_userfile(-1);
347 check_bind_event("sighup");
348 if (die_on_sighup) {
349 fatal("HANGUP SIGNAL -- SIGNING OFF", 0);
350 } else
351 putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
352 do_restart = -2;
353 return;
354 }
355
356 /* A call to resolver (gethostbyname, etc) timed out
357 */
358 static void got_alarm(int z)
359 {
360 longjmp(alarmret, 1);
361
362 /* -Never reached- */
363 }
364
365 /* Got ILL signal -- log context and continue
366 */
367 static void got_ill(int z)
368 {
369 check_bind_event("sigill");
370 #ifdef DEBUG_CONTEXT
371 putlog(LOG_MISC, "*", "* Context: %s/%d [%s]", cx_file[cx_ptr],
372 cx_line[cx_ptr], (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
373 #endif
374 }
375
376 #ifdef DEBUG_CONTEXT
377 /* Context */
378 void eggContext(const char *file, int line, const char *module)
379 {
380 char x[31], *p;
381
382 p = strrchr(file, '/');
383 if (!module) {
384 strncpyz(x, p ? p + 1 : file, sizeof x);
385 } else
386 snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
387 cx_ptr = ((cx_ptr + 1) & 15);
388 strcpy(cx_file[cx_ptr], x);
389 cx_line[cx_ptr] = line;
390 cx_note[cx_ptr][0] = 0;
391 }
392
393 /* Called from the ContextNote macro.
394 */
395 void eggContextNote(const char *file, int line, const char *module,
396 const char *note)
397 {
398 char x[31], *p;
399
400 p = strrchr(file, '/');
401 if (!module) {
402 strncpyz(x, p ? p + 1 : file, sizeof x);
403 } else
404 snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
405 cx_ptr = ((cx_ptr + 1) & 15);
406 strcpy(cx_file[cx_ptr], x);
407 cx_line[cx_ptr] = line;
408 strncpyz(cx_note[cx_ptr], note, sizeof cx_note[cx_ptr]);
409 }
410 #endif
411
412 static void do_arg(char *s)
413 {
414 char x[1024], *z = x;
415 int i;
416
417 if (s[0] == '-')
418 for (i = 1; i < strlen(s); i++) {
419 switch (s[i]) {
420 case 'n':
421 backgrd = 0;
422 break;
423 case 'c':
424 con_chan = 1;
425 term_z = 0;
426 break;
427 case 't':
428 con_chan = 0;
429 term_z = 1;
430 break;
431 case 'm':
432 make_userfile = 1;
433 break;
434 case 'v':
435 strncpyz(x, egg_version, sizeof x);
436 newsplit(&z);
437 newsplit(&z);
438 printf("%s\n", version);
439 if (z[0])
440 printf(" (patches: %s)\n", z);
441 bg_send_quit(BG_ABORT);
442 exit(0);
443 break; /* this should never be reached */
444 case 'h':
445 printf("\n%s\n\n", version);
446 printf(_("Command line arguments:\n\
447 -h help\n\
448 -v print version and exit\n\
449 -n don't go into the background\n\
450 -c (with -n) display channel stats every 10 seconds\n\
451 -t (with -n) use terminal to simulate dcc-chat\n\
452 -m userfile creation mode\n\
453 optional config filename (default 'eggdrop.conf')\n"));
454 printf("\n");
455 bg_send_quit(BG_ABORT);
456 exit(0);
457 break; /* this should never be reached */
458 }
459 } else
460 strncpyz(configfile, s, sizeof configfile);
461 }
462
463 void backup_userfile(void)
464 {
465 char s[125];
466
467 putlog(LOG_MISC, "*", _("Backing up user file..."));
468 snprintf(s, sizeof s, "%s~bak", userfile);
469 copyfile(userfile, s);
470 }
471
472 /* Timer info */
473 static int lastmin = 99;
474 static time_t then;
475 static struct tm nowtm;
476
477 /* Called once a second.
478 *
479 * Note: Try to not put any Context lines in here (guppy 21Mar2000).
480 */
481 static void core_secondly()
482 {
483 static int cnt = 0;
484 int miltime;
485
486 call_hook(HOOK_SECONDLY); /* Will be removed later */
487 cnt++;
488 if (cnt >= 10) { /* Every 10 seconds */
489 cnt = 0;
490 check_expired_dcc();
491 if (con_chan && !backgrd) {
492 dprintf(DP_STDOUT, "\033[2J\033[1;1H");
493 tell_verbose_status(DP_STDOUT);
494 do_module_report(DP_STDOUT, 0, "server");
495 do_module_report(DP_STDOUT, 0, "channels");
496 }
497 }
498 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
499 if (nowtm.tm_min != lastmin) {
500 int i = 0;
501
502 /* Once a minute */
503 lastmin = (lastmin + 1) % 60;
504 call_hook(HOOK_MINUTELY);
505 check_expired_ignores();
506 autolink_cycle(NULL); /* Attempt autolinks */
507 /* In case for some reason more than 1 min has passed: */
508 while (nowtm.tm_min != lastmin) {
509 /* Timer drift, dammit */
510 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
511 i++;
512 lastmin = (lastmin + 1) % 60;
513 call_hook(HOOK_MINUTELY);
514 }
515 if (i > 1)
516 putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
517 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
518 if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
519 call_hook(HOOK_5MINUTELY);
520 if (!miltime) { /* At midnight */
521 char s[25];
522 int j;
523
524 strncpyz(s, ctime(&now), sizeof s);
525 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
526 call_hook(HOOK_BACKUP);
527 call_hook(HOOK_DAILY);
528 }
529 }
530 if (nowtm.tm_min == notify_users_at)
531 call_hook(HOOK_HOURLY);
532 }
533 }
534
535 static void core_minutely()
536 {
537 check_bind_time(&nowtm);
538 }
539
540 static void core_hourly()
541 {
542 write_userfile(-1);
543 }
544
545 static void event_rehash()
546 {
547 check_bind_event("rehash");
548 }
549
550 static void event_prerehash()
551 {
552 check_bind_event("prerehash");
553 }
554
555 static void event_save()
556 {
557 check_bind_event("save");
558 }
559
560 static void event_logfile()
561 {
562 check_bind_event("logfile");
563 }
564
565 static void event_resettraffic()
566 {
567 otraffic_irc += otraffic_irc_today;
568 itraffic_irc += itraffic_irc_today;
569 otraffic_bn += otraffic_bn_today;
570 itraffic_bn += itraffic_bn_today;
571 otraffic_dcc += otraffic_dcc_today;
572 itraffic_dcc += itraffic_dcc_today;
573 otraffic_unknown += otraffic_unknown_today;
574 itraffic_unknown += itraffic_unknown_today;
575 otraffic_trans += otraffic_trans_today;
576 itraffic_trans += itraffic_trans_today;
577 otraffic_irc_today = otraffic_bn_today = 0;
578 otraffic_dcc_today = otraffic_unknown_today = 0;
579 itraffic_irc_today = itraffic_bn_today = 0;
580 itraffic_dcc_today = itraffic_unknown_today = 0;
581 itraffic_trans_today = otraffic_trans_today = 0;
582 }
583
584 static void event_loaded()
585 {
586 check_bind_event("loaded");
587 }
588
589 void kill_tcl();
590 extern module_entry *module_list;
591 void restart_chons();
592
593 int init_dcc_max(), init_userent(), init_misc(), init_net(),
594 init_modules(), init_tcl(int, char **);
595 void timer_init();
596 void logfile_init();
597 void botnet_init();
598 void dns_init();
599 void script_init();
600 void binds_init();
601
602 void patch(const char *str)
603 {
604 char *p = strchr(egg_version, '+');
605
606 if (!p)
607 p = &egg_version[strlen(egg_version)];
608 sprintf(p, "+%s", str);
609 egg_numver++;
610 sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
611 }
612
613 static inline void garbage_collect(void)
614 {
615 static u_8bit_t run_cnt = 0;
616
617 if (run_cnt == 3)
618 garbage_collect_tclhash();
619 else
620 run_cnt++;
621 }
622
623 int main(int argc, char **argv)
624 {
625 int xx, i;
626 char buf[520], s[25];
627 FILE *f;
628 struct sigaction sv;
629 struct chanset_t *chan;
630 egg_timeval_t howlong;
631
632 #ifdef DEBUG
633 /* Make sure it can write core, if you make debug. Else it's pretty
634 * useless (dw)
635 */
636 {
637 #include <sys/resource.h>
638 struct rlimit cdlim;
639
640 cdlim.rlim_cur = RLIM_INFINITY;
641 cdlim.rlim_max = RLIM_INFINITY;
642 setrlimit(RLIMIT_CORE, &cdlim);
643 }
644 #endif
645
646 /* Initialise context list */
647 for (i = 0; i < 16; i++)
648 Context;
649
650 setlocale(LC_MESSAGES, "");
651 bindtextdomain(PACKAGE, LOCALEDIR);
652 textdomain(PACKAGE);
653
654 #include "patch.h"
655 /* Version info! */
656 snprintf(ver, sizeof ver, "eggdrop v%s", egg_version);
657 snprintf(version, sizeof version, "Eggdrop v%s (C)1997 Robey Pointer (C)2001 Eggheads",
658 egg_version);
659 /* Now add on the patchlevel (for Tcl) */
660 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
661 strcat(egg_version, egg_xtra);
662 #ifdef STOP_UAC
663 {
664 int nvpair[2];
665
666 nvpair[0] = SSIN_UACPROC;
667 nvpair[1] = UAC_NOPRINT;
668 setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
669 }
670 #endif
671
672 /* Set up error traps: */
673 sv.sa_handler = got_bus;
674 sigemptyset(&sv.sa_mask);
675 #ifdef SA_RESETHAND
676 sv.sa_flags = SA_RESETHAND;
677 #else
678 sv.sa_flags = 0;
679 #endif
680 sigaction(SIGBUS, &sv, NULL);
681 sv.sa_handler = got_segv;
682 sigaction(SIGSEGV, &sv, NULL);
683 #ifdef SA_RESETHAND
684 sv.sa_flags = 0;
685 #endif
686 sv.sa_handler = got_fpe;
687 sigaction(SIGFPE, &sv, NULL);
688 sv.sa_handler = got_term;
689 sigaction(SIGTERM, &sv, NULL);
690 sv.sa_handler = got_hup;
691 sigaction(SIGHUP, &sv, NULL);
692 sv.sa_handler = got_quit;
693 sigaction(SIGQUIT, &sv, NULL);
694 sv.sa_handler = SIG_IGN;
695 sigaction(SIGPIPE, &sv, NULL);
696 sv.sa_handler = got_ill;
697 sigaction(SIGILL, &sv, NULL);
698 sv.sa_handler = got_alarm;
699 sigaction(SIGALRM, &sv, NULL);
700
701 /* Initialize variables and stuff */
702 now = time(NULL);
703 chanset = NULL;
704 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
705 lastmin = nowtm.tm_min;
706 srandom(now % (getpid() + getppid()));
707 if (argc > 1)
708 for (i = 1; i < argc; i++)
709 do_arg(argv[i]);
710 printf("\n%s\n", version);
711 printf(" *** WARNING: Do NOT run this DEVELOPMENT version for any purpose other than testing.\n\n");
712
713 /* Don't allow eggdrop to run as root */
714 if (((int) getuid() == 0) || ((int) geteuid() == 0))
715 fatal(_("ERROR: Eggdrop will not run as root!"), 0);
716
717 script_init();
718 logfile_init();
719 timer_init();
720 dns_init();
721 binds_init();
722 core_binds_init();
723 init_dcc_max();
724 init_userent();
725 init_misc();
726 botnet_init();
727 init_net();
728 init_modules();
729
730 if (backgrd)
731 bg_prepare_split();
732
733 init_tcl(argc, argv);
734
735 strncpyz(s, ctime(&now), sizeof s);
736 strcpy(&s[11], &s[20]);
737 putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
738 chanprog();
739 if (!encrypt_pass) {
740 printf(_("You have installed modules but have not selected an encryption\n\
741 module, please consult the default config file for info.\n"));
742 bg_send_quit(BG_ABORT);
743 exit(1);
744 }
745 i = 0;
746 for (chan = chanset; chan; chan = chan->next)
747 i++;
748 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
749 botnetnick, i, count_users(userlist));
750 cache_miss = 0;
751 cache_hit = 0;
752
753 if (!pid_file[0])
754 snprintf(pid_file, sizeof pid_file, "pid.%s", botnetnick);
755
756 /* Check for pre-existing eggdrop! */
757 f = fopen(pid_file, "r");
758 if (f != NULL) {
759 fgets(s, 10, f);
760 xx = atoi(s);
761 kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
762 is used */
763 if (errno != ESRCH) {
764 printf(_("I detect %s already running from this directory.\n"), origbotname);
765 printf(_("If this is incorrect, erase the %s\n"), pid_file);
766 bg_send_quit(BG_ABORT);
767 exit(1);
768 }
769 }
770
771 /* Move into background? */
772 if (backgrd) {
773 #ifndef CYGWIN_HACKS
774 bg_do_split();
775 } else { /* !backgrd */
776 #endif
777 xx = getpid();
778 if (xx != 0) {
779 FILE *fp;
780
781 /* Write pid to file */
782 unlink(pid_file);
783 fp = fopen(pid_file, "w");
784 if (fp != NULL) {
785 fprintf(fp, "%u\n", xx);
786 if (fflush(fp)) {
787 /* Let the bot live since this doesn't appear to be a botchk */
788 printf(_("* Warning! Could not write %s file!\n"), pid_file);
789 fclose(fp);
790 unlink(pid_file);
791 } else
792 fclose(fp);
793 } else
794 printf(_("* Warning! Could not write %s file!\n"), pid_file);
795 #ifdef CYGWIN_HACKS
796 printf("Launched into the background (pid: %d)\n\n", xx);
797 #endif
798 }
799 }
800
801 use_stderr = 0; /* Stop writing to stderr now */
802 if (backgrd) {
803 /* Ok, try to disassociate from controlling terminal (finger cross) */
804 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
805 setpgid(0, 0);
806 #endif
807 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
808 freopen("/dev/null", "r", stdin);
809 freopen("/dev/null", "w", stdout);
810 freopen("/dev/null", "w", stderr);
811 #ifdef CYGWIN_HACKS
812 FreeConsole();
813 #endif
814 }
815
816 /* Terminal emulating dcc chat */
817 if (!backgrd && term_z) {
818 int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
819
820 dcc[n].addr[0] = '\0';
821 dcc[n].sock = STDOUT;
822 dcc[n].timeval = now;
823 dcc[n].u.chat->con_flags = conmask;
824 dcc[n].u.chat->strip_flags = STRIP_ALL;
825 dcc[n].status = STAT_ECHO;
826 strcpy(dcc[n].nick, "HQ");
827 strcpy(dcc[n].host, "llama@console");
828 dcc[n].user = get_user_by_handle(userlist, "HQ");
829 /* Make sure there's an innocuous HQ user if needed */
830 if (!dcc[n].user) {
831 userlist = adduser(userlist, "HQ", "none", "-", USER_PARTY);
832 dcc[n].user = get_user_by_handle(userlist, "HQ");
833 }
834 setsock(STDOUT, 0); /* Entry in net table */
835 dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
836 dcc_chatter(n);
837 }
838
839 then = now;
840 online_since = now;
841 autolink_cycle(NULL); /* Hurry and connect to tandem bots */
842 add_help_reference("cmds1.help");
843 add_help_reference("cmds2.help");
844 add_help_reference("core.help");
845 howlong.sec = 1;
846 howlong.usec = 0;
847 timer_create_repeater(&howlong, (Function) core_secondly);
848 add_hook(HOOK_MINUTELY, (Function) core_minutely);
849 add_hook(HOOK_HOURLY, (Function) core_hourly);
850 add_hook(HOOK_REHASH, (Function) event_rehash);
851 add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
852 add_hook(HOOK_USERFILE, (Function) event_save);
853 add_hook(HOOK_BACKUP, (Function) backup_userfile);
854 add_hook(HOOK_DAILY, (Function) event_logfile);
855 add_hook(HOOK_DAILY, (Function) event_resettraffic);
856 add_hook(HOOK_LOADED, (Function) event_loaded);
857
858 call_hook(HOOK_LOADED);
859
860 debug0("main: entering loop");
861 while (1) {
862 int socket_cleanup = 0;
863
864 #if !defined(HAVE_PRE7_5_TCL)
865 /* Process a single tcl event */
866 Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
867 #endif
868
869 /* Lets move some of this here, reducing the numer of actual
870 * calls to periodic_timers
871 */
872 now = time(NULL);
873 random(); /* Woop, lets really jumble things */
874 timer_run();
875 if (now != then) { /* Once a second */
876 /* call_hook(HOOK_SECONDLY); */
877 then = now;
878 }
879
880 /* Only do this every so often. */
881 if (!socket_cleanup) {
882 socket_cleanup = 5;
883
884 /* Remove dead dcc entries. */
885 dcc_remove_lost();
886
887 /* Check for server or dcc activity. */
888 dequeue_sockets();
889 } else
890 socket_cleanup--;
891
892 /* Free unused structures. */
893 garbage_collect();
894
895 xx = sockgets(buf, &i);
896 if (xx >= 0) { /* Non-error */
897 int idx;
898
899 for (idx = 0; idx < dcc_total; idx++)
900 if (dcc[idx].sock == xx) {
901 if (dcc[idx].type && dcc[idx].type->activity) {
902 /* Traffic stats */
903 if (dcc[idx].type->name) {
904 if (!strncmp(dcc[idx].type->name, "BOT", 3))
905 itraffic_bn_today += strlen(buf) + 1;
906 else if (!strcmp(dcc[idx].type->name, "SERVER"))
907 itraffic_irc_today += strlen(buf) + 1;
908 else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
909 itraffic_dcc_today += strlen(buf) + 1;
910 else if (!strncmp(dcc[idx].type->name, "FILES", 5))
911 itraffic_dcc_today += strlen(buf) + 1;
912 else if (!strcmp(dcc[idx].type->name, "SEND"))
913 itraffic_trans_today += strlen(buf) + 1;
914 else if (!strncmp(dcc[idx].type->name, "GET", 3))
915 itraffic_trans_today += strlen(buf) + 1;
916 else
917 itraffic_unknown_today += strlen(buf) + 1;
918 }
919 dcc[idx].type->activity(idx, buf, i);
920 } else
921 putlog(LOG_MISC, "*",
922 "!!! untrapped dcc activity: type %s, sock %d",
923 dcc[idx].type->name, dcc[idx].sock);
924 break;
925 }
926 } else if (xx == -1) { /* EOF from someone */
927 int idx;
928
929 if (i == STDOUT && !backgrd)
930 fatal("END OF FILE ON TERMINAL", 0);
931 for (idx = 0; idx < dcc_total; idx++)
932 if (dcc[idx].sock == i) {
933 if (dcc[idx].type && dcc[idx].type->eof)
934 dcc[idx].type->eof(idx);
935 else {
936 putlog(LOG_MISC, "*",
937 "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
938 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
939 killsock(i);
940 lostdcc(idx);
941 }
942 idx = dcc_total + 1;
943 }
944 if (idx == dcc_total) {
945 putlog(LOG_MISC, "*",
946 "(@) EOF socket %d, not a dcc socket, not anything.", i);
947 close(i);
948 killsock(i);
949 }
950 } else if (xx == -2 && errno != EINTR) { /* select() error */
951 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
952 for (i = 0; i < dcc_total; i++) {
953 if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
954 putlog(LOG_MISC, "*",
955 "DCC socket %d (type %d, name '%s') expired -- pfft",
956 dcc[i].sock, dcc[i].type, dcc[i].nick);
957 killsock(dcc[i].sock);
958 lostdcc(i);
959 i--;
960 }
961 }
962 } else if (xx == -3) {
963 call_hook(HOOK_IDLE);
964 socket_cleanup = 0; /* If we've been idle, cleanup & flush */
965 }
966
967 if (do_restart) {
968 if (do_restart == -2)
969 rehash();
970 else {
971 /* Unload as many modules as possible */
972 int f = 1;
973 module_entry *p;
974 Function x;
975 char xx[256];
976
977 /* oops, I guess we should call this event before tcl is restarted */
978 check_bind_event("prerestart");
979
980 while (f) {
981 f = 0;
982 for (p = module_list; p != NULL; p = p->next) {
983 dependancy *d = dependancy_list;
984 int ok = 1;
985
986 while (ok && d) {
987 if (d->needed == p)
988 ok = 0;
989 d = d->next;
990 }
991 if (ok) {
992 strcpy(xx, p->name);
993 if (module_unload(xx, origbotname) == NULL) {
994 f = 1;
995 break;
996 }
997 }
998 }
999 }
1000 p = module_list;
1001 if (p && p->next && p->next->next)
1002 /* Should be only 2 modules now - blowfish (or some other
1003 encryption module) and eggdrop. */
1004 putlog(LOG_MISC, "*", _("Stagnant module; there WILL be memory leaks!"));
1005 flushlogs();
1006 kill_tcl();
1007 timer_destroy_all(); /* Destroy all timers. */
1008 init_tcl(argc, argv);
1009 /* We expect the encryption module as the current module pointed
1010 * to by `module_list'.
1011 */
1012 x = p->funcs[MODCALL_START];
1013 /* `NULL' indicates that we just recently restarted. The module
1014 * is expected to re-initialise as needed.
1015 */
1016 x(NULL);
1017 rehash();
1018 restart_chons();
1019 call_hook(HOOK_LOADED);
1020 }
1021 do_restart = 0;
1022 }
1023 }
1024 }

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