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

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Revision 1.83 - (show annotations) (download) (as text)
Sun Oct 14 04:44:36 2001 UTC (17 years, 9 months ago) by stdarg
Branch: MAIN
Changes since 1.82: +3 -1 lines
File MIME type: text/x-chdr
Added code for tclscript.mod
Made it compile correctly with configure et al (hopefully...)
Removed stuff for encodings from tcl.c
egglib/msprintf - like sprintf but mallocs a big enough buffer for you (no overruns, no truncated data)
egglib/mstack - simple stack structure (push, pop) that grows with malloc and is accessible in array form

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 1.82 2001/10/13 12:00:22 stdarg 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
58 #include "adns/adns.h"
59
60 #ifdef CYGWIN_HACKS
61 #include <windows.h>
62 #endif
63
64 #ifndef _POSIX_SOURCE
65 /* Solaris needs this */
66 #define _POSIX_SOURCE 1
67 #endif
68
69 extern char origbotname[], userfile[], botnetnick[];
70 extern int dcc_total, conmask, cache_hit, cache_miss,
71 max_logs, quick_logs;
72 extern struct dcc_t *dcc;
73 extern struct userrec *userlist;
74 extern struct chanset_t *chanset;
75 extern log_t *logs;
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 int keep_all_logs = 0; /* Never erase logfiles, no matter how old
106 they are? */
107 char logfile_suffix[21] = ".%d%b%Y"; /* Format of logfile suffix. */
108 time_t online_since; /* Unix-time that the bot loaded up */
109 int make_userfile = 0; /* Using bot in make-userfile mode? (first
110 user to 'hello' becomes master) */
111 char owner[121] = ""; /* Permanent owner(s) of the bot */
112 char pid_file[HANDLEN + 5]; /* Name of the file for the pid to be
113 stored in */
114 int save_users_at = 0; /* How many minutes past the hour to
115 save the userfile? */
116 int notify_users_at = 0; /* How many minutes past the hour to
117 notify users of notes? */
118 int switch_logfiles_at = 300; /* When (military time) to switch logfiles */
119 char version[81]; /* Version info (long form) */
120 char ver[41]; /* Version info (short form) */
121 char egg_xtra[2048]; /* Patch info */
122 int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
123 int do_restart = 0; /* .restart has been called, restart asap */
124 int die_on_sighup = 0; /* die if bot receives SIGHUP */
125 int die_on_sigterm = 1; /* die if bot receives SIGTERM */
126 int resolve_timeout = 15; /* hostname/address lookup timeout */
127 char quit_msg[1024]; /* quit message */
128 time_t now; /* duh, now :) */
129
130 /* Traffic stats
131 */
132 unsigned long otraffic_irc = 0;
133 unsigned long otraffic_irc_today = 0;
134 unsigned long otraffic_bn = 0;
135 unsigned long otraffic_bn_today = 0;
136 unsigned long otraffic_dcc = 0;
137 unsigned long otraffic_dcc_today = 0;
138 unsigned long otraffic_filesys = 0;
139 unsigned long otraffic_filesys_today = 0;
140 unsigned long otraffic_trans = 0;
141 unsigned long otraffic_trans_today = 0;
142 unsigned long otraffic_unknown = 0;
143 unsigned long otraffic_unknown_today = 0;
144 unsigned long itraffic_irc = 0;
145 unsigned long itraffic_irc_today = 0;
146 unsigned long itraffic_bn = 0;
147 unsigned long itraffic_bn_today = 0;
148 unsigned long itraffic_dcc = 0;
149 unsigned long itraffic_dcc_today = 0;
150 unsigned long itraffic_trans = 0;
151 unsigned long itraffic_trans_today = 0;
152 unsigned long itraffic_unknown = 0;
153 unsigned long itraffic_unknown_today = 0;
154
155 #ifdef DEBUG_CONTEXT
156 /* Context storage for fatal crashes */
157 char cx_file[16][30];
158 char cx_note[16][256];
159 int cx_line[16];
160 int cx_ptr = 0;
161 #endif
162
163
164 void fatal(const char *s, int recoverable)
165 {
166 int i;
167
168 putlog(LOG_MISC, "*", "* %s", s);
169 flushlogs();
170 for (i = 0; i < dcc_total; i++)
171 if (dcc[i].sock >= 0)
172 killsock(dcc[i].sock);
173 unlink(pid_file);
174 if (!recoverable) {
175 bg_send_quit(BG_ABORT);
176 exit(1);
177 }
178 }
179
180 static void check_expired_dcc()
181 {
182 int i;
183
184 for (i = 0; i < dcc_total; i++)
185 if (dcc[i].type && dcc[i].type->timeout_val &&
186 ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
187 if (dcc[i].type->timeout)
188 dcc[i].type->timeout(i);
189 else if (dcc[i].type->eof)
190 dcc[i].type->eof(i);
191 else
192 continue;
193 /* Only timeout 1 socket per cycle, too risky for more */
194 return;
195 }
196 }
197
198 #ifdef DEBUG_CONTEXT
199 static int nested_debug = 0;
200
201 void write_debug()
202 {
203 int x;
204 char s[25];
205 int y;
206
207 if (nested_debug) {
208 /* Yoicks, if we have this there's serious trouble!
209 * All of these are pretty reliable, so we'll try these.
210 *
211 * NOTE: dont try and display context-notes in here, it's
212 * _not_ safe <cybah>
213 */
214 x = creat("DEBUG.DEBUG", 0644);
215 setsock(x, SOCK_NONSOCK);
216 if (x >= 0) {
217 strncpyz(s, ctime(&now), sizeof s);
218 dprintf(-x, "Debug (%s) written %s\n", ver, s);
219 dprintf(-x, "Please report problem to bugs@eggheads.org\n");
220 dprintf(-x, "after a visit to http://www.eggheads.org/bugzilla/\n");
221 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
222 dprintf(-x, "Context: ");
223 cx_ptr = cx_ptr & 15;
224 for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
225 dprintf(-x, "%s/%d,\n ", cx_file[y], cx_line[y]);
226 dprintf(-x, "%s/%d\n\n", cx_file[y], cx_line[y]);
227 killsock(x);
228 close(x);
229 }
230 bg_send_quit(BG_ABORT);
231 exit(1); /* Dont even try & tell people about, that may
232 have caused the fault last time. */
233 } else
234 nested_debug = 1;
235 putlog(LOG_MISC, "*", "* Last context: %s/%d [%s]", cx_file[cx_ptr],
236 cx_line[cx_ptr], cx_note[cx_ptr][0] ? cx_note[cx_ptr] : "");
237 putlog(LOG_MISC, "*", "* Please REPORT this BUG!");
238 putlog(LOG_MISC, "*", "* Check doc/BUG-REPORT on how to do so.");
239 x = creat("DEBUG", 0644);
240 setsock(x, SOCK_NONSOCK);
241 if (x < 0) {
242 putlog(LOG_MISC, "*", "* Failed to write DEBUG");
243 } else {
244 strncpyz(s, ctime(&now), sizeof s);
245 dprintf(-x, "Debug (%s) written %s\n", ver, s);
246 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
247 #ifdef STATIC
248 dprintf(-x, "STATICALLY LINKED\n");
249 #endif
250
251 /* info library */
252 dprintf(-x, "TCL library: %s\n",
253 ((interp) && (Tcl_Eval(interp, "info library") == TCL_OK)) ?
254 interp->result : "*unknown*");
255
256 /* info tclversion/patchlevel */
257 dprintf(-x, "TCL version: %s (header version %s)\n",
258 ((interp) && (Tcl_Eval(interp, "info patchlevel") == TCL_OK)) ?
259 interp->result : (Tcl_Eval(interp, "info tclversion") == TCL_OK) ?
260 interp->result : "*unknown*", TCL_PATCH_LEVEL ? TCL_PATCH_LEVEL :
261 "*unknown*");
262
263 #if HAVE_TCL_THREADS
264 dprintf(-x, "TCL is threaded\n");
265 #endif
266
267 #ifdef CCFLAGS
268 dprintf(-x, "Compile flags: %s\n", CCFLAGS);
269 #endif
270 #ifdef LDFLAGS
271 dprintf(-x, "Link flags: %s\n", LDFLAGS);
272 #endif
273 #ifdef STRIPFLAGS
274 dprintf(-x, "Strip flags: %s\n", STRIPFLAGS);
275 #endif
276
277 dprintf(-x, "Context: ");
278 cx_ptr = cx_ptr & 15;
279 for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
280 dprintf(-x, "%s/%d, [%s]\n ", cx_file[y], cx_line[y],
281 (cx_note[y][0]) ? cx_note[y] : "");
282 dprintf(-x, "%s/%d [%s]\n\n", cx_file[cx_ptr], cx_line[cx_ptr],
283 (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
284 tell_dcc(-x);
285 dprintf(-x, "\n");
286 tell_netdebug(-x);
287 killsock(x);
288 close(x);
289 putlog(LOG_MISC, "*", "* Wrote DEBUG");
290 }
291 }
292 #endif
293
294 static void got_bus(int z)
295 {
296 #ifdef DEBUG_CONTEXT
297 write_debug();
298 #endif
299 fatal("BUS ERROR -- CRASHING!", 1);
300 #ifdef SA_RESETHAND
301 kill(getpid(), SIGBUS);
302 #else
303 bg_send_quit(BG_ABORT);
304 exit(1);
305 #endif
306 }
307
308 static void got_segv(int z)
309 {
310 #ifdef DEBUG_CONTEXT
311 write_debug();
312 #endif
313 fatal("SEGMENT VIOLATION -- CRASHING!", 1);
314 #ifdef SA_RESETHAND
315 kill(getpid(), SIGSEGV);
316 #else
317 bg_send_quit(BG_ABORT);
318 exit(1);
319 #endif
320 }
321
322 static void got_fpe(int z)
323 {
324 #ifdef DEBUG_CONTEXT
325 write_debug();
326 #endif
327 fatal("FLOATING POINT ERROR -- CRASHING!", 0);
328 }
329
330 static void got_term(int z)
331 {
332 write_userfile(-1);
333 check_tcl_event("sigterm");
334 if (die_on_sigterm) {
335 fatal("TERMINATE SIGNAL -- SIGNING OFF", 0);
336 } else {
337 putlog(LOG_MISC, "*", "RECEIVED TERMINATE SIGNAL (IGNORING)");
338 }
339 }
340
341 static void got_quit(int z)
342 {
343 check_tcl_event("sigquit");
344 putlog(LOG_MISC, "*", "RECEIVED QUIT SIGNAL (IGNORING)");
345 return;
346 }
347
348 static void got_hup(int z)
349 {
350 write_userfile(-1);
351 check_tcl_event("sighup");
352 if (die_on_sighup) {
353 fatal("HANGUP SIGNAL -- SIGNING OFF", 0);
354 } else
355 putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
356 do_restart = -2;
357 return;
358 }
359
360 /* A call to resolver (gethostbyname, etc) timed out
361 */
362 static void got_alarm(int z)
363 {
364 longjmp(alarmret, 1);
365
366 /* -Never reached- */
367 }
368
369 /* Got ILL signal -- log context and continue
370 */
371 static void got_ill(int z)
372 {
373 check_tcl_event("sigill");
374 #ifdef DEBUG_CONTEXT
375 putlog(LOG_MISC, "*", "* Context: %s/%d [%s]", cx_file[cx_ptr],
376 cx_line[cx_ptr], (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
377 #endif
378 }
379
380 #ifdef DEBUG_CONTEXT
381 /* Context */
382 void eggContext(const char *file, int line, const char *module)
383 {
384 char x[31], *p;
385
386 p = strrchr(file, '/');
387 if (!module) {
388 strncpyz(x, p ? p + 1 : file, sizeof x);
389 } else
390 egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
391 cx_ptr = ((cx_ptr + 1) & 15);
392 strcpy(cx_file[cx_ptr], x);
393 cx_line[cx_ptr] = line;
394 cx_note[cx_ptr][0] = 0;
395 }
396
397 /* Called from the ContextNote macro.
398 */
399 void eggContextNote(const char *file, int line, const char *module,
400 const char *note)
401 {
402 char x[31], *p;
403
404 p = strrchr(file, '/');
405 if (!module) {
406 strncpyz(x, p ? p + 1 : file, sizeof x);
407 } else
408 egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
409 cx_ptr = ((cx_ptr + 1) & 15);
410 strcpy(cx_file[cx_ptr], x);
411 cx_line[cx_ptr] = line;
412 strncpyz(cx_note[cx_ptr], note, sizeof cx_note[cx_ptr]);
413 }
414 #endif
415
416 static void do_arg(char *s)
417 {
418 char x[1024], *z = x;
419 int i;
420
421 if (s[0] == '-')
422 for (i = 1; i < strlen(s); i++) {
423 switch (s[i]) {
424 case 'n':
425 backgrd = 0;
426 break;
427 case 'c':
428 con_chan = 1;
429 term_z = 0;
430 break;
431 case 't':
432 con_chan = 0;
433 term_z = 1;
434 break;
435 case 'm':
436 make_userfile = 1;
437 break;
438 case 'v':
439 strncpyz(x, egg_version, sizeof x);
440 newsplit(&z);
441 newsplit(&z);
442 printf("%s\n", version);
443 if (z[0])
444 printf(" (patches: %s)\n", z);
445 bg_send_quit(BG_ABORT);
446 exit(0);
447 break; /* this should never be reached */
448 case 'h':
449 printf("\n%s\n\n", version);
450 printf(_("Command line arguments:\n\
451 -h help\n\
452 -v print version and exit\n\
453 -n don't go into the background\n\
454 -c (with -n) display channel stats every 10 seconds\n\
455 -t (with -n) use terminal to simulate dcc-chat\n\
456 -m userfile creation mode\n\
457 optional config filename (default 'eggdrop.conf')\n"));
458 printf("\n");
459 bg_send_quit(BG_ABORT);
460 exit(0);
461 break; /* this should never be reached */
462 }
463 } else
464 strncpyz(configfile, s, sizeof configfile);
465 }
466
467 void backup_userfile(void)
468 {
469 char s[125];
470
471 putlog(LOG_MISC, "*", _("Backing up user file..."));
472 egg_snprintf(s, sizeof s, "%s~bak", userfile);
473 copyfile(userfile, s);
474 }
475
476 /* Timer info */
477 static int lastmin = 99;
478 static time_t then;
479 static struct tm nowtm;
480
481 /* Called once a second.
482 *
483 * Note: Try to not put any Context lines in here (guppy 21Mar2000).
484 */
485 static void core_secondly()
486 {
487 static int cnt = 0;
488 int miltime;
489
490 call_hook(HOOK_SECONDLY); /* Will be removed later */
491 do_check_timers(&utimer); /* Secondly timers */
492 cnt++;
493 if (cnt >= 10) { /* Every 10 seconds */
494 cnt = 0;
495 check_expired_dcc();
496 if (con_chan && !backgrd) {
497 dprintf(DP_STDOUT, "\033[2J\033[1;1H");
498 tell_verbose_status(DP_STDOUT);
499 do_module_report(DP_STDOUT, 0, "server");
500 do_module_report(DP_STDOUT, 0, "channels");
501 }
502 }
503 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
504 if (nowtm.tm_min != lastmin) {
505 int i = 0;
506
507 /* Once a minute */
508 lastmin = (lastmin + 1) % 60;
509 call_hook(HOOK_MINUTELY);
510 check_expired_ignores();
511 autolink_cycle(NULL); /* Attempt autolinks */
512 /* In case for some reason more than 1 min has passed: */
513 while (nowtm.tm_min != lastmin) {
514 /* Timer drift, dammit */
515 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
516 i++;
517 lastmin = (lastmin + 1) % 60;
518 call_hook(HOOK_MINUTELY);
519 }
520 if (i > 1)
521 putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
522 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
523 if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
524 call_hook(HOOK_5MINUTELY);
525 if (!quick_logs) {
526 flushlogs();
527 check_logsize();
528 }
529 if (!miltime) { /* At midnight */
530 char s[25];
531 int j;
532
533 strncpyz(s, ctime(&now), sizeof s);
534 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
535 call_hook(HOOK_BACKUP);
536 for (j = 0; j < max_logs; j++) {
537 if (logs[j].filename != NULL && logs[j].f != NULL) {
538 fclose(logs[j].f);
539 logs[j].f = NULL;
540 }
541 }
542 }
543 }
544 if (nowtm.tm_min == notify_users_at)
545 call_hook(HOOK_HOURLY);
546 /* These no longer need checking since they are all check vs minutely
547 * settings and we only get this far on the minute.
548 */
549 if (miltime == switch_logfiles_at) {
550 call_hook(HOOK_DAILY);
551 if (!keep_all_logs) {
552 putlog(LOG_MISC, "*", _("Switching logfiles..."));
553 for (i = 0; i < max_logs; i++)
554 if (logs[i].filename) {
555 char s[1024];
556
557 if (logs[i].f) {
558 fclose(logs[i].f);
559 logs[i].f = NULL;
560 }
561 egg_snprintf(s, sizeof s, "%s.yesterday", logs[i].filename);
562 unlink(s);
563 movefile(logs[i].filename, s);
564 }
565 }
566 }
567 }
568 }
569
570 static void core_minutely()
571 {
572 check_tcl_time(&nowtm);
573 do_check_timers(&timer);
574 if (quick_logs != 0) {
575 flushlogs();
576 check_logsize();
577 }
578 }
579
580 static void core_hourly()
581 {
582 write_userfile(-1);
583 }
584
585 static void event_rehash()
586 {
587 check_tcl_event("rehash");
588 }
589
590 static void event_prerehash()
591 {
592 check_tcl_event("prerehash");
593 }
594
595 static void event_save()
596 {
597 check_tcl_event("save");
598 }
599
600 static void event_logfile()
601 {
602 check_tcl_event("logfile");
603 }
604
605 static void event_resettraffic()
606 {
607 otraffic_irc += otraffic_irc_today;
608 itraffic_irc += itraffic_irc_today;
609 otraffic_bn += otraffic_bn_today;
610 itraffic_bn += itraffic_bn_today;
611 otraffic_dcc += otraffic_dcc_today;
612 itraffic_dcc += itraffic_dcc_today;
613 otraffic_unknown += otraffic_unknown_today;
614 itraffic_unknown += itraffic_unknown_today;
615 otraffic_trans += otraffic_trans_today;
616 itraffic_trans += itraffic_trans_today;
617 otraffic_irc_today = otraffic_bn_today = 0;
618 otraffic_dcc_today = otraffic_unknown_today = 0;
619 itraffic_irc_today = itraffic_bn_today = 0;
620 itraffic_dcc_today = itraffic_unknown_today = 0;
621 itraffic_trans_today = otraffic_trans_today = 0;
622 }
623
624 static void event_loaded()
625 {
626 check_tcl_event("loaded");
627 }
628
629 void kill_tcl();
630 extern module_entry *module_list;
631 void restart_chons();
632
633 #ifdef STATIC
634 void check_static(char *, char *(*)());
635
636 #include "mod/static.h"
637 #endif
638 int init_dcc_max(), init_userent(), init_misc(), init_net(),
639 init_modules(), init_tcl(int, char **);
640 void botnet_init();
641 void script_init();
642 void init_binds();
643
644 void patch(const char *str)
645 {
646 char *p = strchr(egg_version, '+');
647
648 if (!p)
649 p = &egg_version[strlen(egg_version)];
650 sprintf(p, "+%s", str);
651 egg_numver++;
652 sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
653 }
654
655 static inline void garbage_collect(void)
656 {
657 static u_8bit_t run_cnt = 0;
658
659 if (run_cnt == 3)
660 garbage_collect_tclhash();
661 else
662 run_cnt++;
663 }
664
665 int main(int argc, char **argv)
666 {
667 int xx, i;
668 char buf[520], s[25];
669 FILE *f;
670 struct sigaction sv;
671 struct chanset_t *chan;
672 egg_timeval_t howlong;
673
674 #ifdef DEBUG
675 /* Make sure it can write core, if you make debug. Else it's pretty
676 * useless (dw)
677 */
678 {
679 #include <sys/resource.h>
680 struct rlimit cdlim;
681
682 cdlim.rlim_cur = RLIM_INFINITY;
683 cdlim.rlim_max = RLIM_INFINITY;
684 setrlimit(RLIMIT_CORE, &cdlim);
685 }
686 #endif
687
688 /* Initialise context list */
689 for (i = 0; i < 16; i++)
690 Context;
691
692 setlocale(LC_MESSAGES, "");
693 bindtextdomain(PACKAGE, LOCALEDIR);
694 textdomain(PACKAGE);
695
696 #include "patch.h"
697 /* Version info! */
698 egg_snprintf(ver, sizeof ver, "eggdrop v%s", egg_version);
699 egg_snprintf(version, sizeof version, "Eggdrop v%s (C)1997 Robey Pointer (C)2001 Eggheads",
700 egg_version);
701 /* Now add on the patchlevel (for Tcl) */
702 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
703 strcat(egg_version, egg_xtra);
704 #ifdef STOP_UAC
705 {
706 int nvpair[2];
707
708 nvpair[0] = SSIN_UACPROC;
709 nvpair[1] = UAC_NOPRINT;
710 setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
711 }
712 #endif
713
714 /* Set up error traps: */
715 sv.sa_handler = got_bus;
716 sigemptyset(&sv.sa_mask);
717 #ifdef SA_RESETHAND
718 sv.sa_flags = SA_RESETHAND;
719 #else
720 sv.sa_flags = 0;
721 #endif
722 sigaction(SIGBUS, &sv, NULL);
723 sv.sa_handler = got_segv;
724 sigaction(SIGSEGV, &sv, NULL);
725 #ifdef SA_RESETHAND
726 sv.sa_flags = 0;
727 #endif
728 sv.sa_handler = got_fpe;
729 sigaction(SIGFPE, &sv, NULL);
730 sv.sa_handler = got_term;
731 sigaction(SIGTERM, &sv, NULL);
732 sv.sa_handler = got_hup;
733 sigaction(SIGHUP, &sv, NULL);
734 sv.sa_handler = got_quit;
735 sigaction(SIGQUIT, &sv, NULL);
736 sv.sa_handler = SIG_IGN;
737 sigaction(SIGPIPE, &sv, NULL);
738 sv.sa_handler = got_ill;
739 sigaction(SIGILL, &sv, NULL);
740 sv.sa_handler = got_alarm;
741 sigaction(SIGALRM, &sv, NULL);
742
743 /* Initialize variables and stuff */
744 now = time(NULL);
745 chanset = NULL;
746 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
747 lastmin = nowtm.tm_min;
748 srandom(now % (getpid() + getppid()));
749 if (argc > 1)
750 for (i = 1; i < argc; i++)
751 do_arg(argv[i]);
752 printf("\n%s\n", version);
753
754 /* Don't allow eggdrop to run as root */
755 if (((int) getuid() == 0) || ((int) geteuid() == 0))
756 fatal(_("ERROR: Eggdrop will not run as root!"), 0);
757
758 script_init();
759 init_binds();
760 init_dcc_max();
761 init_userent();
762 init_misc();
763 botnet_init();
764 init_net();
765 init_modules();
766
767 if (backgrd)
768 bg_prepare_split();
769
770 init_tcl(argc, argv);
771
772 #ifdef STATIC
773 link_statics();
774 #endif
775 strncpyz(s, ctime(&now), sizeof s);
776 strcpy(&s[11], &s[20]);
777 putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
778 chanprog();
779 if (!encrypt_pass) {
780 printf(_("You have installed modules but have not selected an encryption\n\
781 module, please consult the default config file for info.\n"));
782 bg_send_quit(BG_ABORT);
783 exit(1);
784 }
785 i = 0;
786 for (chan = chanset; chan; chan = chan->next)
787 i++;
788 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
789 botnetnick, i, count_users(userlist));
790 cache_miss = 0;
791 cache_hit = 0;
792 egg_snprintf(pid_file, sizeof pid_file, "pid.%s", botnetnick);
793
794 /* Check for pre-existing eggdrop! */
795 f = fopen(pid_file, "r");
796 if (f != NULL) {
797 fgets(s, 10, f);
798 xx = atoi(s);
799 kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
800 is used */
801 if (errno != ESRCH) {
802 printf(_("I detect %s already running from this directory.\n"), origbotname);
803 printf(_("If this is incorrect, erase the %s\n"), pid_file);
804 bg_send_quit(BG_ABORT);
805 exit(1);
806 }
807 }
808
809 /* Move into background? */
810 if (backgrd) {
811 #ifndef CYGWIN_HACKS
812 bg_do_split();
813 } else { /* !backgrd */
814 #endif
815 xx = getpid();
816 if (xx != 0) {
817 FILE *fp;
818
819 /* Write pid to file */
820 unlink(pid_file);
821 fp = fopen(pid_file, "w");
822 if (fp != NULL) {
823 fprintf(fp, "%u\n", xx);
824 if (fflush(fp)) {
825 /* Let the bot live since this doesn't appear to be a botchk */
826 printf(_("* Warning! Could not write %s file!\n"), pid_file);
827 fclose(fp);
828 unlink(pid_file);
829 } else
830 fclose(fp);
831 } else
832 printf(_("* Warning! Could not write %s file!\n"), pid_file);
833 #ifdef CYGWIN_HACKS
834 printf("Launched into the background (pid: %d)\n\n", xx);
835 #endif
836 }
837 }
838
839 use_stderr = 0; /* Stop writing to stderr now */
840 if (backgrd) {
841 /* Ok, try to disassociate from controlling terminal (finger cross) */
842 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
843 setpgid(0, 0);
844 #endif
845 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
846 freopen("/dev/null", "r", stdin);
847 freopen("/dev/null", "w", stdout);
848 freopen("/dev/null", "w", stderr);
849 #ifdef CYGWIN_HACKS
850 FreeConsole();
851 #endif
852 }
853
854 /* Terminal emulating dcc chat */
855 if (!backgrd && term_z) {
856 int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
857
858 dcc[n].addr[0] = '\0';
859 dcc[n].sock = STDOUT;
860 dcc[n].timeval = now;
861 dcc[n].u.chat->con_flags = conmask;
862 dcc[n].u.chat->strip_flags = STRIP_ALL;
863 dcc[n].status = STAT_ECHO;
864 strcpy(dcc[n].nick, "HQ");
865 strcpy(dcc[n].host, "llama@console");
866 dcc[n].user = get_user_by_handle(userlist, "HQ");
867 /* Make sure there's an innocuous HQ user if needed */
868 if (!dcc[n].user) {
869 userlist = adduser(userlist, "HQ", "none", "-", USER_PARTY);
870 dcc[n].user = get_user_by_handle(userlist, "HQ");
871 }
872 setsock(STDOUT, 0); /* Entry in net table */
873 dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
874 dcc_chatter(n);
875 }
876
877 then = now;
878 online_since = now;
879 autolink_cycle(NULL); /* Hurry and connect to tandem bots */
880 add_help_reference("cmds1.help");
881 add_help_reference("cmds2.help");
882 add_help_reference("core.help");
883 howlong.sec = 1;
884 howlong.usec = 0;
885 timer_create_repeater(&howlong, (Function) core_secondly);
886 add_hook(HOOK_MINUTELY, (Function) core_minutely);
887 add_hook(HOOK_HOURLY, (Function) core_hourly);
888 add_hook(HOOK_REHASH, (Function) event_rehash);
889 add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
890 add_hook(HOOK_USERFILE, (Function) event_save);
891 add_hook(HOOK_BACKUP, (Function) backup_userfile);
892 add_hook(HOOK_DAILY, (Function) event_logfile);
893 add_hook(HOOK_DAILY, (Function) event_resettraffic);
894 add_hook(HOOK_LOADED, (Function) event_loaded);
895
896 call_hook(HOOK_LOADED);
897
898 debug0("main: entering loop");
899 while (1) {
900 int socket_cleanup = 0;
901
902 #if !defined(HAVE_PRE7_5_TCL)
903 /* Process a single tcl event */
904 Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
905 #endif
906
907 /* Lets move some of this here, reducing the numer of actual
908 * calls to periodic_timers
909 */
910 now = time(NULL);
911 random(); /* Woop, lets really jumble things */
912 timer_run();
913 if (now != then) { /* Once a second */
914 /* call_hook(HOOK_SECONDLY); */
915 then = now;
916 }
917
918 /* Only do this every so often. */
919 if (!socket_cleanup) {
920 socket_cleanup = 5;
921
922 /* Remove dead dcc entries. */
923 dcc_remove_lost();
924
925 /* Check for server or dcc activity. */
926 dequeue_sockets();
927 } else
928 socket_cleanup--;
929
930 /* Free unused structures. */
931 garbage_collect();
932
933 xx = sockgets(buf, &i);
934 if (xx >= 0) { /* Non-error */
935 int idx;
936
937 for (idx = 0; idx < dcc_total; idx++)
938 if (dcc[idx].sock == xx) {
939 if (dcc[idx].type && dcc[idx].type->activity) {
940 /* Traffic stats */
941 if (dcc[idx].type->name) {
942 if (!strncmp(dcc[idx].type->name, "BOT", 3))
943 itraffic_bn_today += strlen(buf) + 1;
944 else if (!strcmp(dcc[idx].type->name, "SERVER"))
945 itraffic_irc_today += strlen(buf) + 1;
946 else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
947 itraffic_dcc_today += strlen(buf) + 1;
948 else if (!strncmp(dcc[idx].type->name, "FILES", 5))
949 itraffic_dcc_today += strlen(buf) + 1;
950 else if (!strcmp(dcc[idx].type->name, "SEND"))
951 itraffic_trans_today += strlen(buf) + 1;
952 else if (!strncmp(dcc[idx].type->name, "GET", 3))
953 itraffic_trans_today += strlen(buf) + 1;
954 else
955 itraffic_unknown_today += strlen(buf) + 1;
956 }
957 dcc[idx].type->activity(idx, buf, i);
958 } else
959 putlog(LOG_MISC, "*",
960 "!!! untrapped dcc activity: type %s, sock %d",
961 dcc[idx].type->name, dcc[idx].sock);
962 break;
963 }
964 } else if (xx == -1) { /* EOF from someone */
965 int idx;
966
967 if (i == STDOUT && !backgrd)
968 fatal("END OF FILE ON TERMINAL", 0);
969 for (idx = 0; idx < dcc_total; idx++)
970 if (dcc[idx].sock == i) {
971 if (dcc[idx].type && dcc[idx].type->eof)
972 dcc[idx].type->eof(idx);
973 else {
974 putlog(LOG_MISC, "*",
975 "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
976 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
977 killsock(i);
978 lostdcc(idx);
979 }
980 idx = dcc_total + 1;
981 }
982 if (idx == dcc_total) {
983 putlog(LOG_MISC, "*",
984 "(@) EOF socket %d, not a dcc socket, not anything.", i);
985 close(i);
986 killsock(i);
987 }
988 } else if (xx == -2 && errno != EINTR) { /* select() error */
989 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
990 for (i = 0; i < dcc_total; i++) {
991 if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
992 putlog(LOG_MISC, "*",
993 "DCC socket %d (type %d, name '%s') expired -- pfft",
994 dcc[i].sock, dcc[i].type, dcc[i].nick);
995 killsock(dcc[i].sock);
996 lostdcc(i);
997 i--;
998 }
999 }
1000 } else if (xx == -3) {
1001 call_hook(HOOK_IDLE);
1002 socket_cleanup = 0; /* If we've been idle, cleanup & flush */
1003 }
1004
1005 if (do_restart) {
1006 if (do_restart == -2)
1007 rehash();
1008 else {
1009 /* Unload as many modules as possible */
1010 int f = 1;
1011 module_entry *p;
1012 Function x;
1013 char xx[256];
1014
1015 /* oops, I guess we should call this event before tcl is restarted */
1016 check_tcl_event("prerestart");
1017
1018 while (f) {
1019 f = 0;
1020 for (p = module_list; p != NULL; p = p->next) {
1021 dependancy *d = dependancy_list;
1022 int ok = 1;
1023
1024 while (ok && d) {
1025 if (d->needed == p)
1026 ok = 0;
1027 d = d->next;
1028 }
1029 if (ok) {
1030 strcpy(xx, p->name);
1031 if (module_unload(xx, origbotname) == NULL) {
1032 f = 1;
1033 break;
1034 }
1035 }
1036 }
1037 }
1038 p = module_list;
1039 if (p && p->next && p->next->next)
1040 /* Should be only 2 modules now - blowfish (or some other
1041 encryption module) and eggdrop. */
1042 putlog(LOG_MISC, "*", _("Stagnant module; there WILL be memory leaks!"));
1043 flushlogs();
1044 kill_tcl();
1045 init_tcl(argc, argv);
1046 /* We expect the encryption module as the current module pointed
1047 * to by `module_list'.
1048 */
1049 x = p->funcs[MODCALL_START];
1050 /* `NULL' indicates that we just recently restarted. The module
1051 * is expected to re-initialise as needed.
1052 */
1053 x(NULL);
1054 rehash();
1055 restart_chons();
1056 call_hook(HOOK_LOADED);
1057 }
1058 do_restart = 0;
1059 }
1060 }
1061 }

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