/[cvs]/eggdrop1.8/src/main.c
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Contents of /eggdrop1.8/src/main.c

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Revision 1.6.2.1 - (show annotations) (download) (as text)
Wed Nov 10 13:39:19 2010 UTC (8 years, 6 months ago) by pseudo
Branch: gettext
Changes since 1.6: +46 -31 lines
File MIME type: text/x-chdr
Converted remaining lang #defines in the core to english strings from core.english.lang. Gettextified most of the hardcoded strings.

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 1.6 2010/10/23 11:16:12 pseudo Exp $
9 */
10 /*
11 * Copyright (C) 1997 Robey Pointer
12 * Copyright (C) 1999 - 2010 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
36 #include <fcntl.h>
37 #include <errno.h>
38 #include <signal.h>
39 #include <netdb.h>
40 #include <setjmp.h>
41
42 #ifdef TIME_WITH_SYS_TIME
43 # include <sys/time.h>
44 # include <time.h>
45 #else
46 # ifdef HAVE_SYS_TIME_H
47 # include <sys/time.h>
48 # else
49 # include <time.h>
50 # endif
51 #endif
52
53 #ifdef STOP_UAC /* OSF/1 complains a lot */
54 # include <sys/sysinfo.h>
55 # define UAC_NOPRINT 0x00000001 /* Don't report unaligned fixups */
56 #endif
57
58 #include "chan.h"
59 #include "modules.h"
60 #include "tandem.h"
61 #include "bg.h"
62
63 #ifdef DEBUG /* For debug compile */
64 # include <sys/resource.h> /* setrlimit() */
65 #endif
66
67 #ifdef CYGWIN_HACKS
68 # include <windows.h>
69 #endif
70
71 #ifndef _POSIX_SOURCE
72 # define _POSIX_SOURCE 1 /* Solaris needs this */
73 #endif
74
75 extern char origbotname[], userfile[], botnetnick[];
76 extern int dcc_total, conmask, cache_hit, cache_miss, max_logs, quick_logs,
77 quiet_save;
78 extern struct dcc_t *dcc;
79 extern struct userrec *userlist;
80 extern struct chanset_t *chanset;
81 extern log_t *logs;
82 extern Tcl_Interp *interp;
83 extern tcl_timer_t *timer, *utimer;
84 extern sigjmp_buf alarmret;
85 time_t now;
86 static int argc;
87 static char **argv;
88
89 /*
90 * Please use the PATCH macro instead of directly altering the version
91 * string from now on (it makes it much easier to maintain patches).
92 * Also please read the README file regarding your rights to distribute
93 * modified versions of this bot.
94 */
95
96 char egg_version[1024] = "1.8.0";
97 int egg_numver = 1080000;
98
99 char notify_new[121] = ""; /* Person to send a note to for new users */
100 int default_flags = 0; /* Default user flags */
101 int default_uflags = 0; /* Default user-definied flags */
102
103 int backgrd = 1; /* Run in the background? */
104 int con_chan = 0; /* Foreground: constantly display channel stats? */
105 int term_z = 0; /* Foreground: use the terminal as a partyline? */
106 int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
107
108 char configfile[121] = "eggdrop.conf"; /* Default config file name */
109 char pid_file[120]; /* Name of the pid file */
110 char helpdir[121] = "help/"; /* Directory of help files */
111 char textdir[121] = "text/"; /* Directory for text files */
112
113 int keep_all_logs = 0; /* Never erase logfiles? */
114 char logfile_suffix[21] = ".%d%b%Y"; /* Format of logfile suffix */
115 int switch_logfiles_at = 300; /* When to switch logfiles */
116
117 time_t online_since; /* time that the bot was started */
118
119 int make_userfile = 0; /* Using bot in userfile-creation mode? */
120 char owner[121] = ""; /* Permanent owner(s) of the bot */
121
122 int save_users_at = 0; /* Minutes past the hour to save the userfile? */
123 int notify_users_at = 0; /* Minutes past the hour to notify users of notes? */
124
125 char version[81]; /* Version info (long form) */
126 char ver[41]; /* Version info (short form) */
127 char egg_xtra[2048]; /* Patch info */
128
129 int do_restart = 0; /* .restart has been called, restart ASAP */
130 int resolve_timeout = 15; /* Hostname/address lookup timeout */
131 char quit_msg[1024]; /* Quit message */
132
133 /* Traffic stats */
134 unsigned long otraffic_irc = 0;
135 unsigned long otraffic_irc_today = 0;
136 unsigned long otraffic_bn = 0;
137 unsigned long otraffic_bn_today = 0;
138 unsigned long otraffic_dcc = 0;
139 unsigned long otraffic_dcc_today = 0;
140 unsigned long otraffic_filesys = 0;
141 unsigned long otraffic_filesys_today = 0;
142 unsigned long otraffic_trans = 0;
143 unsigned long otraffic_trans_today = 0;
144 unsigned long otraffic_unknown = 0;
145 unsigned long otraffic_unknown_today = 0;
146 unsigned long itraffic_irc = 0;
147 unsigned long itraffic_irc_today = 0;
148 unsigned long itraffic_bn = 0;
149 unsigned long itraffic_bn_today = 0;
150 unsigned long itraffic_dcc = 0;
151 unsigned long itraffic_dcc_today = 0;
152 unsigned long itraffic_trans = 0;
153 unsigned long itraffic_trans_today = 0;
154 unsigned long itraffic_unknown = 0;
155 unsigned long itraffic_unknown_today = 0;
156
157 #ifdef DEBUG_CONTEXT
158 /* Context storage for fatal crashes */
159 char cx_file[16][30];
160 char cx_note[16][256];
161 int cx_line[16];
162 int cx_ptr = 0;
163 #endif
164
165 #ifdef TLS
166 int ssl_cleanup();
167 #endif
168
169 void fatal(const char *s, int recoverable)
170 {
171 int i;
172
173 putlog(LOG_MISC, "*", "* %s", s);
174 flushlogs();
175 for (i = 0; i < dcc_total; i++)
176 if (dcc[i].sock >= 0)
177 killsock(dcc[i].sock);
178 #ifdef TLS
179 ssl_cleanup();
180 #endif
181 unlink(pid_file);
182 if (recoverable != 1) {
183 bg_send_quit(BG_ABORT);
184 exit(!recoverable);
185 }
186 }
187
188 int expmem_chanprog();
189 int expmem_users();
190 int expmem_misc();
191 int expmem_dccutil();
192 int expmem_botnet();
193 int expmem_tcl();
194 int expmem_tclhash();
195 int expmem_net();
196 int expmem_modules(int);
197 int expmem_language();
198 int expmem_tcldcc();
199 int expmem_tclmisc();
200 int expmem_dns();
201 #ifdef TLS
202 int expmem_tls();
203 #endif
204
205 /* For mem.c : calculate memory we SHOULD be using
206 */
207 int expected_memory(void)
208 {
209 int tot;
210
211 tot = expmem_chanprog() + expmem_users() + expmem_misc() + expmem_dccutil() +
212 expmem_botnet() + expmem_tcl() + expmem_tclhash() + expmem_net() +
213 expmem_modules(0) + expmem_language() + expmem_tcldcc() +
214 expmem_tclmisc() + expmem_dns();
215 #ifdef TLS
216 tot += expmem_tls();
217 #endif
218 return tot;
219 }
220
221 static void check_expired_dcc()
222 {
223 int i;
224
225 for (i = 0; i < dcc_total; i++)
226 if (dcc[i].type && dcc[i].type->timeout_val &&
227 ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
228 if (dcc[i].type->timeout)
229 dcc[i].type->timeout(i);
230 else if (dcc[i].type->eof)
231 dcc[i].type->eof(i);
232 else
233 continue;
234 /* Only timeout 1 socket per cycle, too risky for more */
235 return;
236 }
237 }
238
239 #ifndef DEBUG_CONTEXT
240 #define write_debug() do {} while (0)
241 #else
242 static int nested_debug = 0;
243
244 static void write_debug()
245 {
246 int x;
247 char s[25];
248 int y;
249
250 if (nested_debug) {
251 /* Yoicks, if we have this there's serious trouble!
252 * All of these are pretty reliable, so we'll try these.
253 *
254 * NOTE: dont try and display context-notes in here, it's
255 * _not_ safe <cybah>
256 */
257 x = creat("DEBUG.DEBUG", 0644);
258 setsock(x, SOCK_NONSOCK);
259 if (x >= 0) {
260 strncpyz(s, ctime(&now), sizeof s);
261 dprintf(-x, "Debug (%s) written %s\n", ver, s);
262 dprintf(-x, "Please report problem to bugs@eggheads.org\n");
263 dprintf(-x, "after a visit to http://www.eggheads.org/bugzilla/\n");
264 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
265 dprintf(-x, "Context: ");
266 cx_ptr = cx_ptr & 15;
267 for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
268 dprintf(-x, "%s/%d,\n ", cx_file[y], cx_line[y]);
269 dprintf(-x, "%s/%d\n\n", cx_file[y], cx_line[y]);
270 killsock(x);
271 close(x);
272 }
273 bg_send_quit(BG_ABORT);
274 exit(1); /* Dont even try & tell people about, that may
275 * have caused the fault last time. */
276 } else
277 nested_debug = 1;
278 putlog(LOG_MISC, "*", "* Last context: %s/%d [%s]", cx_file[cx_ptr],
279 cx_line[cx_ptr], cx_note[cx_ptr][0] ? cx_note[cx_ptr] : "");
280 putlog(LOG_MISC, "*", "* Please REPORT this BUG!");
281 putlog(LOG_MISC, "*", "* Check doc/BUG-REPORT on how to do so.");
282 x = creat("DEBUG", 0644);
283 setsock(x, SOCK_NONSOCK);
284 if (x < 0) {
285 putlog(LOG_MISC, "*", _("* Failed to write DEBUG"));
286 } else {
287 strncpyz(s, ctime(&now), sizeof s);
288 dprintf(-x, "Debug (%s) written %s\n", ver, s);
289 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
290 #ifdef STATIC
291 dprintf(-x, "STATICALLY LINKED\n");
292 #endif
293
294 /* info library */
295 dprintf(-x, "Tcl library: %s\n",
296 ((interp) && (Tcl_Eval(interp, "info library") == TCL_OK)) ?
297 tcl_resultstring() : "*unknown*");
298
299 /* info tclversion/patchlevel */
300 dprintf(-x, "Tcl version: %s (header version %s)\n",
301 ((interp) && (Tcl_Eval(interp, "info patchlevel") == TCL_OK)) ?
302 tcl_resultstring() : (Tcl_Eval(interp, "info tclversion") == TCL_OK) ?
303 tcl_resultstring() : "*unknown*", TCL_PATCH_LEVEL ? TCL_PATCH_LEVEL :
304 "*unknown*");
305
306 if (tcl_threaded())
307 dprintf(-x, "Tcl is threaded\n");
308 #ifdef IPV6
309 dprintf(-x, "Compiled with IPv6 support\n");
310 #else
311 dprintf(-x, "Compiled without IPv6 support\n");
312 #endif
313
314 #ifdef TLS
315 dprintf(-x, "Compiled with TLS support\n");
316 #else
317 dprintf(-x, "Compiled without TLS support\n");
318 #endif
319
320 dprintf(-x, "Configure flags: %s\n", EGG_AC_ARGS);
321 #ifdef CCFLAGS
322 dprintf(-x, "Compile flags: %s\n", CCFLAGS);
323 #endif
324
325 #ifdef LDFLAGS
326 dprintf(-x, "Link flags: %s\n", LDFLAGS);
327 #endif
328
329 #ifdef STRIPFLAGS
330 dprintf(-x, "Strip flags: %s\n", STRIPFLAGS);
331 #endif
332
333 dprintf(-x, "Context: ");
334 cx_ptr = cx_ptr & 15;
335 for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
336 dprintf(-x, "%s/%d, [%s]\n ", cx_file[y], cx_line[y],
337 (cx_note[y][0]) ? cx_note[y] : "");
338 dprintf(-x, "%s/%d [%s]\n\n", cx_file[cx_ptr], cx_line[cx_ptr],
339 (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
340 tell_dcc(-x);
341 dprintf(-x, "\n");
342 debug_mem_to_dcc(-x);
343 killsock(x);
344 close(x);
345 putlog(LOG_MISC, "*", "* Wrote DEBUG");
346 }
347 }
348 #endif /* DEBUG_CONTEXT */
349
350 static void got_bus(int z)
351 {
352 write_debug();
353 fatal("BUS ERROR -- CRASHING!", 1);
354 #ifdef SA_RESETHAND
355 kill(getpid(), SIGBUS);
356 #else
357 bg_send_quit(BG_ABORT);
358 exit(1);
359 #endif
360 }
361
362 static void got_segv(int z)
363 {
364 write_debug();
365 fatal("SEGMENT VIOLATION -- CRASHING!", 1);
366 #ifdef SA_RESETHAND
367 kill(getpid(), SIGSEGV);
368 #else
369 bg_send_quit(BG_ABORT);
370 exit(1);
371 #endif
372 }
373
374 static void got_fpe(int z)
375 {
376 write_debug();
377 fatal("FLOATING POINT ERROR -- CRASHING!", 0);
378 }
379
380 static void got_term(int z)
381 {
382 /* Now we die by default on sigterm, but scripts have the chance to
383 * catch the event themselves and cancel shutdown by returning 1
384 */
385 if (check_tcl_event("sigterm"))
386 return;
387 kill_bot(_("ACK, I've been terminated!"),
388 _("TERMINATE SIGNAL -- SIGNING OFF"));
389 }
390
391 static void got_quit(int z)
392 {
393 if (check_tcl_event("sigquit"))
394 return;
395 putlog(LOG_MISC, "*", _("Received QUIT signal: restarting..."));
396 do_restart = -1;
397 return;
398 }
399
400 static void got_hup(int z)
401 {
402 write_userfile(-1);
403 if (check_tcl_event("sighup"))
404 return;
405 putlog(LOG_MISC, "*", _("Received HUP signal: rehashing..."));
406 do_restart = -2;
407 return;
408 }
409
410 /* A call to resolver (gethostbyname, etc) timed out
411 */
412 static void got_alarm(int z)
413 {
414 siglongjmp(alarmret, 1);
415
416 /* -Never reached- */
417 }
418
419 /* Got ILL signal -- log context and continue
420 */
421 static void got_ill(int z)
422 {
423 check_tcl_event("sigill");
424 #ifdef DEBUG_CONTEXT
425 putlog(LOG_MISC, "*", "* Context: %s/%d [%s]", cx_file[cx_ptr],
426 cx_line[cx_ptr], (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
427 #endif
428 }
429
430 #ifdef DEBUG_CONTEXT
431 /* Called from the Context macro.
432 */
433 void eggContext(const char *file, int line, const char *module)
434 {
435 char x[31], *p;
436
437 p = strrchr(file, '/');
438 if (!module) {
439 strncpyz(x, p ? p + 1 : file, sizeof x);
440 } else
441 egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
442 cx_ptr = ((cx_ptr + 1) & 15);
443 strcpy(cx_file[cx_ptr], x);
444 cx_line[cx_ptr] = line;
445 cx_note[cx_ptr][0] = 0;
446 }
447
448 /* Called from the ContextNote macro.
449 */
450 void eggContextNote(const char *file, int line, const char *module,
451 const char *note)
452 {
453 char x[31], *p;
454
455 p = strrchr(file, '/');
456 if (!module)
457 strncpyz(x, p ? p + 1 : file, sizeof x);
458 else
459 egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
460 cx_ptr = ((cx_ptr + 1) & 15);
461 strcpy(cx_file[cx_ptr], x);
462 cx_line[cx_ptr] = line;
463 strncpyz(cx_note[cx_ptr], note, sizeof cx_note[cx_ptr]);
464 }
465 #endif /* DEBUG_CONTEXT */
466
467 #ifdef DEBUG_ASSERT
468 /* Called from the Assert macro.
469 */
470 void eggAssert(const char *file, int line, const char *module)
471 {
472 write_debug();
473 if (!module)
474 putlog(LOG_MISC, "*", "* In file %s, line %u", file, line);
475 else
476 putlog(LOG_MISC, "*", "* In file %s:%s, line %u", module, file, line);
477 fatal("ASSERT FAILED -- CRASHING!", 1);
478 }
479 #endif
480
481 static void do_arg(char *s)
482 {
483 char x[512], *z = x;
484 int i;
485
486 if (s[0] == '-')
487 for (i = 1; i < strlen(s); i++) {
488 switch (s[i]) {
489 case 'n':
490 backgrd = 0;
491 break;
492 case 'c':
493 con_chan = 1;
494 term_z = 0;
495 break;
496 case 't':
497 con_chan = 0;
498 term_z = 1;
499 break;
500 case 'm':
501 make_userfile = 1;
502 break;
503 case 'v':
504 strncpyz(x, egg_version, sizeof x);
505 newsplit(&z);
506 newsplit(&z);
507 printf("%s\n", version);
508 if (z[0])
509 printf(_(" (patches: %s)\n"), z);
510 printf(_("Configured with: %s\n"), EGG_AC_ARGS);
511 printf(_("Compiled with: "));
512 #ifdef IPV6
513 printf("IPv6, ");
514 #endif
515 #ifdef TLS
516 printf("TLS, ");
517 #endif
518 printf("%s=%d\n", _("handlen"), HANDLEN);
519 bg_send_quit(BG_ABORT);
520 exit(0);
521 break; /* this should never be reached */
522 case 'h':
523 printf("\n%s\n\n", version);
524 printf(_("Usage: eggdrop [options] [config-file]\n\n"
525 "Options:\n"
526 " -h help\n"
527 " -n Don't background; send all log entries to console.\n"
528 " -nc Don't background; display channel stats every 10 seconds.\n"
529 " -nt Don't background; use terminal to simulate DCC chat.\n"
530 " -m Create userfile.\n"
531 " -h Show this help.\n"
532 " -v Show version info, then quit.\n\n"));
533 printf("\n");
534 bg_send_quit(BG_ABORT);
535 exit(0);
536 break; /* this should never be reached */
537 }
538 } else
539 strncpyz(configfile, s, sizeof configfile);
540 }
541
542 void backup_userfile(void)
543 {
544 char s[125];
545
546 if (quiet_save < 2)
547 putlog(LOG_MISC, "*", _("Backing up user file..."));
548 egg_snprintf(s, sizeof s, "%s~bak", userfile);
549 copyfile(userfile, s);
550 }
551
552 /* Timer info */
553 static int lastmin = 99;
554 static time_t then;
555 static struct tm nowtm;
556
557 /* Called once a second.
558 *
559 * Note: Try to not put any Context lines in here (guppy 21Mar2000).
560 */
561 static void core_secondly()
562 {
563 static int cnt = 0;
564 int miltime;
565
566 do_check_timers(&utimer); /* Secondly timers */
567 cnt++;
568 if (cnt >= 10) { /* Every 10 seconds */
569 cnt = 0;
570 check_expired_dcc();
571 if (con_chan && !backgrd) {
572 dprintf(DP_STDOUT, "\033[2J\033[1;1H");
573 tell_verbose_status(DP_STDOUT);
574 do_module_report(DP_STDOUT, 0, "server");
575 do_module_report(DP_STDOUT, 0, "channels");
576 tell_mem_status_dcc(DP_STDOUT);
577 }
578 }
579 egg_memcpy(&nowtm, localtime(&now), sizeof(struct tm));
580 if (nowtm.tm_min != lastmin) {
581 int i = 0;
582
583 /* Once a minute */
584 lastmin = (lastmin + 1) % 60;
585 call_hook(HOOK_MINUTELY);
586 check_expired_ignores();
587 autolink_cycle(NULL); /* Attempt autolinks */
588 /* In case for some reason more than 1 min has passed: */
589 while (nowtm.tm_min != lastmin) {
590 /* Timer drift, dammit */
591 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
592 i++;
593 lastmin = (lastmin + 1) % 60;
594 call_hook(HOOK_MINUTELY);
595 }
596 if (i > 1)
597 putlog(LOG_MISC, "*", _("(!) timer drift -- spun %d minutes"), i);
598 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
599 if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
600 call_hook(HOOK_5MINUTELY);
601 check_botnet_pings();
602 if (!quick_logs) {
603 flushlogs();
604 check_logsize();
605 }
606 if (!miltime) { /* At midnight */
607 char s[25];
608 int j;
609
610 strncpyz(s, ctime(&now), sizeof s);
611 if (quiet_save < 3)
612 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
613 call_hook(HOOK_BACKUP);
614 for (j = 0; j < max_logs; j++) {
615 if (logs[j].filename != NULL && logs[j].f != NULL) {
616 fclose(logs[j].f);
617 logs[j].f = NULL;
618 }
619 }
620 }
621 }
622 if (nowtm.tm_min == notify_users_at)
623 call_hook(HOOK_HOURLY);
624 /* These no longer need checking since they are all check vs minutely
625 * settings and we only get this far on the minute.
626 */
627 if (miltime == switch_logfiles_at) {
628 call_hook(HOOK_DAILY);
629 if (!keep_all_logs) {
630 if (quiet_save < 3)
631 putlog(LOG_MISC, "*", _("Switching logfiles..."));
632 for (i = 0; i < max_logs; i++)
633 if (logs[i].filename) {
634 char s[1024];
635
636 if (logs[i].f) {
637 fclose(logs[i].f);
638 logs[i].f = NULL;
639 }
640 egg_snprintf(s, sizeof s, "%s.yesterday", logs[i].filename);
641 unlink(s);
642 movefile(logs[i].filename, s);
643 }
644 }
645 }
646 }
647 }
648
649 static void core_minutely()
650 {
651 check_tcl_time(&nowtm);
652 check_tcl_cron(&nowtm);
653 do_check_timers(&timer);
654 if (quick_logs != 0) {
655 flushlogs();
656 check_logsize();
657 }
658 }
659
660 static void core_hourly()
661 {
662 write_userfile(-1);
663 }
664
665 static void event_rehash()
666 {
667 check_tcl_event("rehash");
668 }
669
670 static void event_prerehash()
671 {
672 check_tcl_event("prerehash");
673 }
674
675 static void event_save()
676 {
677 check_tcl_event("save");
678 }
679
680 static void event_logfile()
681 {
682 check_tcl_event("logfile");
683 }
684
685 static void event_resettraffic()
686 {
687 otraffic_irc += otraffic_irc_today;
688 itraffic_irc += itraffic_irc_today;
689 otraffic_bn += otraffic_bn_today;
690 itraffic_bn += itraffic_bn_today;
691 otraffic_dcc += otraffic_dcc_today;
692 itraffic_dcc += itraffic_dcc_today;
693 otraffic_unknown += otraffic_unknown_today;
694 itraffic_unknown += itraffic_unknown_today;
695 otraffic_trans += otraffic_trans_today;
696 itraffic_trans += itraffic_trans_today;
697 otraffic_irc_today = otraffic_bn_today = 0;
698 otraffic_dcc_today = otraffic_unknown_today = 0;
699 itraffic_irc_today = itraffic_bn_today = 0;
700 itraffic_dcc_today = itraffic_unknown_today = 0;
701 itraffic_trans_today = otraffic_trans_today = 0;
702 }
703
704 static void event_loaded()
705 {
706 check_tcl_event("loaded");
707 }
708
709 void kill_tcl();
710 extern module_entry *module_list;
711 void restart_chons();
712
713 #ifdef STATIC
714 void check_static(char *, char *(*)());
715
716 #include "mod/static.h"
717 #endif
718 int init_threaddata(int);
719 int init_mem();
720 int init_userent();
721 int init_misc();
722 int init_bots();
723 int init_modules();
724 int init_tcl(int, char **);
725 int init_language(int);
726 #ifdef TLS
727 int ssl_init();
728 #endif
729
730 static void patch(const char *str)
731 {
732 char *p = strchr(egg_version, '+');
733
734 if (!p)
735 p = &egg_version[strlen(egg_version)];
736 sprintf(p, "+%s", str);
737 egg_numver++;
738 sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
739 }
740
741 static inline void garbage_collect(void)
742 {
743 static u_8bit_t run_cnt = 0;
744
745 if (run_cnt == 3)
746 garbage_collect_tclhash();
747 else
748 run_cnt++;
749 }
750
751 int mainloop(int toplevel)
752 {
753 static int socket_cleanup = 0;
754 int xx, i, eggbusy = 1, tclbusy = 0;
755 char buf[520];
756
757 /* Lets move some of this here, reducing the numer of actual
758 * calls to periodic_timers
759 */
760 now = time(NULL);
761 /*
762 * FIXME: Get rid of this, it's ugly and wastes lots of cpu.
763 *
764 * pre-1.3.0 Eggdrop had random() in the once a second block below.
765 *
766 * This attempts to keep random() more random by constantly
767 * calling random() and updating the state information.
768 */
769 random(); /* Woop, lets really jumble things */
770
771 /* If we want to restart, we have to unwind to the toplevel.
772 * Tcl will Panic if we kill the interp with Tcl_Eval in progress.
773 * This is done by returning -1 in tickle_WaitForEvent.
774 */
775 if (do_restart && do_restart != -2 && !toplevel)
776 return -1;
777
778 /* Once a second */
779 if (now != then) {
780 call_hook(HOOK_SECONDLY);
781 then = now;
782 }
783
784 /* Only do this every so often. */
785 if (!socket_cleanup) {
786 socket_cleanup = 5;
787
788 /* Remove dead dcc entries. */
789 dcc_remove_lost();
790
791 /* Check for server or dcc activity. */
792 dequeue_sockets();
793 } else
794 socket_cleanup--;
795
796 /* Free unused structures. */
797 garbage_collect();
798
799 xx = sockgets(buf, &i);
800 if (xx >= 0) { /* Non-error */
801 int idx;
802
803 for (idx = 0; idx < dcc_total; idx++)
804 if (dcc[idx].sock == xx) {
805 if (dcc[idx].type && dcc[idx].type->activity) {
806 /* Traffic stats */
807 if (dcc[idx].type->name) {
808 if (!strncmp(dcc[idx].type->name, "BOT", 3))
809 itraffic_bn_today += strlen(buf) + 1;
810 else if (!strcmp(dcc[idx].type->name, "SERVER"))
811 itraffic_irc_today += strlen(buf) + 1;
812 else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
813 itraffic_dcc_today += strlen(buf) + 1;
814 else if (!strncmp(dcc[idx].type->name, "FILES", 5))
815 itraffic_dcc_today += strlen(buf) + 1;
816 else if (!strcmp(dcc[idx].type->name, "SEND"))
817 itraffic_trans_today += strlen(buf) + 1;
818 else if (!strncmp(dcc[idx].type->name, "GET", 3))
819 itraffic_trans_today += strlen(buf) + 1;
820 else
821 itraffic_unknown_today += strlen(buf) + 1;
822 }
823 dcc[idx].type->activity(idx, buf, i);
824 } else
825 putlog(LOG_MISC, "*",
826 _("!!! untrapped dcc activity: type %s, sock %d"),
827 dcc[idx].type->name, dcc[idx].sock);
828 break;
829 }
830 } else if (xx == -1) { /* EOF from someone */
831 int idx;
832
833 if (i == STDOUT && !backgrd)
834 fatal(_("END OF FILE ON TERMINAL"), 0);
835 for (idx = 0; idx < dcc_total; idx++)
836 if (dcc[idx].sock == i) {
837 if (dcc[idx].type && dcc[idx].type->eof)
838 dcc[idx].type->eof(idx);
839 else {
840 if (dcc[idx].type)
841 putlog(LOG_MISC, "*", _("*** ATTENTION: DEAD SOCKET (%d) "
842 "OF TYPE %s UNTRAPPED"), i, dcc[idx].type->name);
843 else
844 putlog(LOG_MISC, "*", _("*** ATTENTION: DEAD SOCKET (%d) "
845 "OF UNKNOWN TYPE UNTRAPPED"), i);
846 killsock(i);
847 lostdcc(idx);
848 }
849 idx = dcc_total + 1;
850 }
851 if (idx == dcc_total) {
852 putlog(LOG_MISC, "*",
853 _("(@) EOF socket %d, not a dcc socket, not anything."), i);
854 close(i);
855 killsock(i);
856 }
857 } else if (xx == -2 && errno != EINTR) { /* select() error */
858 putlog(LOG_MISC, "*", _("* Socket error #%d; recovering."), errno);
859 for (i = 0; i < dcc_total; i++) {
860 if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno == EBADF)) {
861 putlog(LOG_MISC, "*",
862 _("DCC socket %d (type %d, name '%s') expired -- pfft"),
863 dcc[i].sock, dcc[i].type, dcc[i].nick);
864 killsock(dcc[i].sock);
865 lostdcc(i);
866 i--;
867 }
868 }
869 } else if (xx == -3) {
870 call_hook(HOOK_IDLE);
871 socket_cleanup = 0; /* If we've been idle, cleanup & flush */
872 eggbusy = 0;
873 } else if (xx == -5) {
874 eggbusy = 0;
875 tclbusy = 1;
876 }
877
878 if (do_restart) {
879 if (do_restart == -2)
880 rehash();
881 else if (!toplevel)
882 return -1; /* Unwind to toplevel before restarting */
883 else {
884 /* Unload as many modules as possible */
885 int f = 1;
886 module_entry *p;
887 Function startfunc;
888 char name[256];
889
890 /* oops, I guess we should call this event before tcl is restarted */
891 check_tcl_event("prerestart");
892
893 while (f) {
894 f = 0;
895 for (p = module_list; p != NULL; p = p->next) {
896 dependancy *d = dependancy_list;
897 int ok = 1;
898
899 while (ok && d) {
900 if (d->needed == p)
901 ok = 0;
902 d = d->next;
903 }
904 if (ok) {
905 strcpy(name, p->name);
906 if (module_unload(name, botnetnick) == NULL) {
907 f = 1;
908 break;
909 }
910 }
911 }
912 }
913
914 /* Make sure we don't have any modules left hanging around other than
915 * "eggdrop" and the two that are supposed to be.
916 */
917 for (f = 0, p = module_list; p; p = p->next) {
918 if (strcmp(p->name, "eggdrop") && strcmp(p->name, "encryption") &&
919 strcmp(p->name, "uptime")) {
920 f++;
921 }
922 }
923 if (f != 0) {
924 putlog(LOG_MISC, "*", _("Stagnant modules; "
925 "there WILL be memory leaks!"));
926 }
927
928 flushlogs();
929 kill_tcl();
930 init_tcl(argc, argv);
931 init_language(0);
932
933 /* this resets our modules which we didn't unload (encryption and uptime) */
934 for (p = module_list; p; p = p->next) {
935 if (p->funcs) {
936 startfunc = p->funcs[MODCALL_START];
937 startfunc(NULL);
938 }
939 }
940
941 rehash();
942 #ifdef TLS
943 ssl_cleanup();
944 ssl_init();
945 #endif
946 restart_chons();
947 call_hook(HOOK_LOADED);
948 }
949 eggbusy = 1;
950 do_restart = 0;
951 }
952
953 #ifdef USE_TCL_EVENTS
954 if (!eggbusy) {
955 /* Process all pending tcl events */
956 # ifdef REPLACE_NOTIFIER
957 if (Tcl_ServiceAll())
958 tclbusy = 1;
959 # else
960 while (Tcl_DoOneEvent(TCL_DONT_WAIT | TCL_ALL_EVENTS))
961 tclbusy = 1;
962 # endif /* REPLACE_NOTIFIER */
963 #endif /* USE_TCL_EVENTS */
964 }
965
966 return (eggbusy || tclbusy);
967 }
968
969 int main(int arg_c, char **arg_v)
970 {
971 int i, xx;
972 char s[25];
973 FILE *f;
974 struct sigaction sv;
975 struct chanset_t *chan;
976 #ifdef DEBUG
977 struct rlimit cdlim;
978 #endif
979 #ifdef STOP_UAC
980 int nvpair[2];
981 #endif
982
983 /* Make sure it can write core, if you make debug. Else it's pretty
984 * useless (dw)
985 *
986 * Only allow unlimited size core files when compiled with DEBUG defined.
987 * This is not a good idea for normal builds -- in these cases, use the
988 * default system resource limits instead.
989 */
990 #ifdef DEBUG
991 cdlim.rlim_cur = RLIM_INFINITY;
992 cdlim.rlim_max = RLIM_INFINITY;
993 setrlimit(RLIMIT_CORE, &cdlim);
994 #endif
995
996 #ifdef DEBUG_CONTEXT
997 /* Initialise context list */
998 for (i = 0; i < 16; i++)
999 Context;
1000 #endif
1001
1002 /* Include patch.h header for patch("...") */
1003 #include "patch.h"
1004
1005 argc = arg_c;
1006 argv = arg_v;
1007
1008 /* Version info! */
1009 egg_snprintf(ver, sizeof ver, "eggdrop v%s", egg_version);
1010 egg_snprintf(version, sizeof version,
1011 "Eggdrop v%s (C) 1997 Robey Pointer (C) 2010 Eggheads",
1012 egg_version);
1013 /* Now add on the patchlevel (for Tcl) */
1014 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
1015 strcat(egg_version, egg_xtra);
1016
1017 /* For OSF/1 */
1018 #ifdef STOP_UAC
1019 /* Don't print "unaligned access fixup" warning to the user */
1020 nvpair[0] = SSIN_UACPROC;
1021 nvpair[1] = UAC_NOPRINT;
1022 setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
1023 #endif
1024
1025 /* Set up error traps: */
1026 sv.sa_handler = got_bus;
1027 sigemptyset(&sv.sa_mask);
1028 #ifdef SA_RESETHAND
1029 sv.sa_flags = SA_RESETHAND;
1030 #else
1031 sv.sa_flags = 0;
1032 #endif
1033 sigaction(SIGBUS, &sv, NULL);
1034 sv.sa_handler = got_segv;
1035 sigaction(SIGSEGV, &sv, NULL);
1036 #ifdef SA_RESETHAND
1037 sv.sa_flags = 0;
1038 #endif
1039 sv.sa_handler = got_fpe;
1040 sigaction(SIGFPE, &sv, NULL);
1041 sv.sa_handler = got_term;
1042 sigaction(SIGTERM, &sv, NULL);
1043 sv.sa_handler = got_hup;
1044 sigaction(SIGHUP, &sv, NULL);
1045 sv.sa_handler = got_quit;
1046 sigaction(SIGQUIT, &sv, NULL);
1047 sv.sa_handler = SIG_IGN;
1048 sigaction(SIGPIPE, &sv, NULL);
1049 sv.sa_handler = got_ill;
1050 sigaction(SIGILL, &sv, NULL);
1051 sv.sa_handler = got_alarm;
1052 sigaction(SIGALRM, &sv, NULL);
1053
1054 /* Initialize variables and stuff */
1055 now = time(NULL);
1056 chanset = NULL;
1057 egg_memcpy(&nowtm, localtime(&now), sizeof(struct tm));
1058 lastmin = nowtm.tm_min;
1059 srandom((unsigned int) (now % (getpid() + getppid())));
1060 init_mem();
1061 init_language(1);
1062 if (argc > 1)
1063 for (i = 1; i < argc; i++)
1064 do_arg(argv[i]);
1065
1066 printf("\n%s\n", version);
1067
1068 #ifndef CYGWIN_HACKS
1069 /* Don't allow eggdrop to run as root
1070 * This check isn't useful under cygwin and has been
1071 * reported to cause trouble in some situations.
1072 */
1073 if (((int) getuid() == 0) || ((int) geteuid() == 0))
1074 fatal(_("ERROR: Eggdrop will not run as root!"), 0);
1075 #endif
1076
1077 #ifndef REPLACE_NOTIFIER
1078 init_threaddata(1);
1079 #endif
1080 init_userent();
1081 init_misc();
1082 init_bots();
1083 init_modules();
1084 if (backgrd)
1085 bg_prepare_split();
1086 init_tcl(argc, argv);
1087 init_language(0);
1088 #ifdef STATIC
1089 link_statics();
1090 #endif
1091 strncpyz(s, ctime(&now), sizeof s);
1092 strcpy(&s[11], &s[20]);
1093 putlog(LOG_ALL, "*", _("--- Loading %s (%s)"), ver, s);
1094 chanprog();
1095 if (!encrypt_pass) {
1096 printf(_("You have installed modules but have not selected an encryption\n"
1097 "module. Please consult the default config file for info.\n"));
1098 bg_send_quit(BG_ABORT);
1099 exit(1);
1100 }
1101 i = 0;
1102 for (chan = chanset; chan; chan = chan->next)
1103 i++;
1104 putlog(LOG_MISC, "*", _("=== %s: %d channels, %d users."),
1105 botnetnick, i, count_users(userlist));
1106 #ifdef TLS
1107 ssl_init();
1108 #endif
1109 cache_miss = 0;
1110 cache_hit = 0;
1111 if (!pid_file[0])
1112 egg_snprintf(pid_file, sizeof pid_file, "pid.%s", botnetnick);
1113
1114 /* Check for pre-existing eggdrop! */
1115 f = fopen(pid_file, "r");
1116 if (f != NULL) {
1117 fgets(s, 10, f);
1118 xx = atoi(s);
1119 i = kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
1120 * is used */
1121 if (i == 0 || errno != ESRCH) {
1122 printf(_("I detect %s already running from this directory.\n"),
1123 botnetnick);
1124 printf(_("If this is incorrect, erase the '%s'\n"), pid_file);
1125 bg_send_quit(BG_ABORT);
1126 exit(1);
1127 }
1128 }
1129
1130 /* Move into background? */
1131 if (backgrd) {
1132 bg_do_split();
1133 } else { /* !backgrd */
1134 xx = getpid();
1135 if (xx != 0) {
1136 FILE *fp;
1137
1138 /* Write pid to file */
1139 unlink(pid_file);
1140 fp = fopen(pid_file, "w");
1141 if (fp != NULL) {
1142 fprintf(fp, "%u\n", xx);
1143 if (fflush(fp)) {
1144 /* Let the bot live since this doesn't appear to be a botchk */
1145 printf(_("* Warning! Could not write %s file!\n"), pid_file);
1146 fclose(fp);
1147 unlink(pid_file);
1148 } else
1149 fclose(fp);
1150 } else
1151 printf(_("* Warning! Could not write %s file!\n"), pid_file);
1152 }
1153 }
1154
1155 use_stderr = 0; /* Stop writing to stderr now */
1156 if (backgrd) {
1157 /* Ok, try to disassociate from controlling terminal (finger cross) */
1158 #ifdef HAVE_SETPGID
1159 setpgid(0, 0);
1160 #endif
1161 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
1162 freopen("/dev/null", "r", stdin);
1163 freopen("/dev/null", "w", stdout);
1164 freopen("/dev/null", "w", stderr);
1165 #ifdef CYGWIN_HACKS
1166 FreeConsole();
1167 #endif
1168 }
1169
1170 /* Terminal emulating dcc chat */
1171 if (!backgrd && term_z) {
1172 int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
1173
1174 getvhost(&dcc[n].sockname, AF_INET);
1175 dcc[n].sock = STDOUT;
1176 dcc[n].timeval = now;
1177 dcc[n].u.chat->con_flags = conmask;
1178 dcc[n].u.chat->strip_flags = STRIP_ALL;
1179 dcc[n].status = STAT_ECHO;
1180 strcpy(dcc[n].nick, "HQ");
1181 strcpy(dcc[n].host, "llama@console");
1182 /* HACK: Workaround not to pass literal "HQ" as a non-const arg */
1183 dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
1184 /* Make sure there's an innocuous HQ user if needed */
1185 if (!dcc[n].user) {
1186 userlist = adduser(userlist, dcc[n].nick, "none", "-", USER_PARTY);
1187 dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
1188 }
1189 setsock(STDOUT, 0); /* Entry in net table */
1190 dprintf(n, _("\n### ENTERING DCC CHAT SIMULATION ###\n\n"));
1191 dcc_chatter(n);
1192 }
1193
1194 then = now;
1195 online_since = now;
1196 autolink_cycle(NULL); /* Hurry and connect to tandem bots */
1197 add_help_reference("cmds1.help");
1198 add_help_reference("cmds2.help");
1199 add_help_reference("core.help");
1200 add_hook(HOOK_SECONDLY, (Function) core_secondly);
1201 add_hook(HOOK_MINUTELY, (Function) core_minutely);
1202 add_hook(HOOK_HOURLY, (Function) core_hourly);
1203 add_hook(HOOK_REHASH, (Function) event_rehash);
1204 add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
1205 add_hook(HOOK_USERFILE, (Function) event_save);
1206 add_hook(HOOK_BACKUP, (Function) backup_userfile);
1207 add_hook(HOOK_DAILY, (Function) event_logfile);
1208 add_hook(HOOK_DAILY, (Function) event_resettraffic);
1209 add_hook(HOOK_LOADED, (Function) event_loaded);
1210
1211 call_hook(HOOK_LOADED);
1212
1213 debug0("main: entering loop");
1214 while (1) {
1215 mainloop(1);
1216 }
1217 }

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