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

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Revision 1.8 - (show annotations) (download) (as text)
Wed Nov 10 21:35:03 1999 UTC (19 years, 11 months ago) by fabian
Branch: MAIN
Changes since 1.7: +5 -4 lines
File MIME type: text/x-chdr
Resync with 1.4

1 /*
2 * main.c -- handles:
3 * changing nicknames when the desired nick is in use
4 * flood detection
5 * signal handling
6 * command line arguments
7 *
8 * dprintf'ized, 15nov1995
9 */
10 /*
11 * This file is part of the eggdrop source code
12 * copyright (c) 1997 Robey Pointer
13 * and is distributed according to the GNU general public license.
14 *
15 * Parts of this eggdrop source code are copyright (c)1999 Eggheads
16 * and is distributed according to the GNU general public license.
17 *
18 * This program is free software; you can redistribute it and/or modify
19 * it under the terms of the GNU General Public License as published by
20 * the Free Software Foundation; either version 2 of the License, or
21 * (at your option) any later version.
22 *
23 * This program is distributed in the hope that it will be useful,
24 * but WITHOUT ANY WARRANTY; without even the implied warranty of
25 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
26 * GNU General Public License for more details.
27 *
28 * You should have received a copy of the GNU General Public License
29 * along with this program; if not, write to the Free Software
30 * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
31 *
32 * The author (Robey Pointer) can be reached at: robey@netcom.com
33 * NOTE: Robey is no long working on this code, there is a discussion
34 * list avaliable at eggheads@eggheads.org.
35 */
36
37 #include "main.h"
38 #include <time.h>
39 #include <fcntl.h>
40 #include <errno.h>
41 #include <signal.h>
42 #include <netdb.h>
43 #include <setjmp.h>
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 #include "chan.h"
51 #include "modules.h"
52 #include "tandem.h"
53 #ifdef CYGWIN_HACKS
54 #include <windows.h>
55 BOOL FreeConsole(VOID);
56 #endif
57
58 #ifndef _POSIX_SOURCE
59 /* solaris needs this */
60 #define _POSIX_SOURCE 1
61 #endif
62
63 extern char origbotname[];
64 extern int dcc_total;
65 extern struct dcc_t *dcc;
66 extern int conmask;
67 extern struct userrec *userlist;
68 extern int cache_hit, cache_miss;
69 extern char userfile[];
70 extern struct chanset_t *chanset;
71 extern char botnetnick[];
72 extern log_t *logs;
73 extern Tcl_Interp *interp;
74 extern int max_logs;
75 extern tcl_timer_t *timer, *utimer;
76 extern jmp_buf alarmret;
77 extern int quick_logs; /* dw */
78
79 /*
80 * Please use the PATCH macro instead of directly altering the version
81 * string from now on (it makes it much easier to maintain patches).
82 * Also please read the README file regarding your rights to distribute
83 * modified versions of this bot.
84 */
85
86 char egg_version[1024] = "1.5.0";
87 int egg_numver = 1050000;
88
89 char notify_new[121] = ""; /* person to send a note to for new users */
90 int default_flags = 0; /* default user flags and */
91 int default_uflags = 0; /* default userdefinied flags for people */
92 /* who say 'hello' or for .adduser */
93
94 int backgrd = 1; /* run in the background? */
95 int con_chan = 0; /* foreground: constantly display channel
96 * stats? */
97 int term_z = 0; /* foreground: use the terminal as a party
98 * line? */
99 char configfile[121] = "eggdrop.conf"; /* name of the config file */
100 char helpdir[121]; /* directory of help files (if used) */
101 char textdir[121] = ""; /* directory for text files that get dumped */
102 int keep_all_logs = 0; /* never erase logfiles, no matter how old
103 * they are? */
104 time_t online_since; /* unix-time that the bot loaded up */
105 int make_userfile = 0; /* using bot in make-userfile mode? (first
106 * user to 'hello' becomes master) */
107 char owner[121] = ""; /* permanent owner(s) of the bot */
108 char pid_file[40]; /* name of the file for the pid to be
109 * stored in */
110 int save_users_at = 0; /* how many minutes past the hour to
111 * save the userfile? */
112 int notify_users_at = 0; /* how many minutes past the hour to
113 * notify users of notes? */
114 int switch_logfiles_at = 300; /* when (military time) to switch logfiles */
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 = 0; /* die if bot receives SIGTERM */
122 int resolve_timeout = 15; /* hostname/address lookup timeout */
123 time_t now; /* duh, now :) */
124
125 /* context storage for fatal crashes */
126 char cx_file[16][30];
127 char cx_note[16][256];
128 int cx_line[16];
129 int cx_ptr = 0;
130
131 void fatal(char *s, int recoverable)
132 {
133 int i;
134
135 putlog(LOG_MISC, "*", "* %s", s);
136 flushlogs();
137 for (i = 0; i < dcc_total; i++)
138 killsock(dcc[i].sock);
139 unlink(pid_file);
140 if (!recoverable)
141 exit(1);
142 }
143
144 int expmem_chanprog(), expmem_users(), expmem_misc(), expmem_dccutil(),
145 expmem_botnet(), expmem_tcl(), expmem_tclhash(), expmem_net(),
146 expmem_modules(int), expmem_language(), expmem_tcldcc();
147
148 /* for mem.c : calculate memory we SHOULD be using */
149 int expected_memory()
150 {
151 int tot;
152
153 context;
154 tot = expmem_chanprog() + expmem_users() + expmem_misc() +
155 expmem_dccutil() + expmem_botnet() + expmem_tcl() + expmem_tclhash() +
156 expmem_net() + expmem_modules(0) + expmem_language() + expmem_tcldcc();
157 return tot;
158 }
159
160 static void check_expired_dcc()
161 {
162 int i;
163
164 for (i = 0; i < dcc_total; i++)
165 if (dcc[i].type && dcc[i].type->timeout_val &&
166 ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
167 if (dcc[i].type->timeout)
168 dcc[i].type->timeout(i);
169 else if (dcc[i].type->eof)
170 dcc[i].type->eof(i);
171 else
172 continue;
173 /* only timeout 1 socket per cycle, too risky for more */
174 return;
175 }
176 }
177
178 static int nested_debug = 0;
179
180 void write_debug()
181 {
182 int x;
183 char s[80];
184 int y;
185
186 if (nested_debug) {
187 /* yoicks, if we have this there's serious trouble */
188 /* all of these are pretty reliable, so we'll try these */
189 /* dont try and display context-notes in here, it's _not_ safe <cybah> */
190 x = creat("DEBUG.DEBUG", 0644);
191 setsock(x, SOCK_NONSOCK);
192 if (x >= 0) {
193 strcpy(s, ctime(&now));
194 dprintf(-x, "Debug (%s) written %s", ver, s);
195 dprintf(-x, "Please report problem to eggheads@eggheads.org");
196 dprintf(-x, "after a visit to http://www.eggheads.org/bugs.html");
197 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
198 dprintf(-x, "Context: ");
199 cx_ptr = cx_ptr & 15;
200 for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
201 dprintf(-x, "%s/%d,\n ", cx_file[y], cx_line[y]);
202 dprintf(-x, "%s/%d\n\n", cx_file[y], cx_line[y]);
203 killsock(x);
204 close(x);
205 }
206 exit(1); /* dont even try & tell people about, that may
207 * have caused the fault last time */
208 } else
209 nested_debug = 1;
210 putlog(LOG_MISC, "*", "* Last context: %s/%d [%s]", cx_file[cx_ptr],
211 cx_line[cx_ptr], cx_note[cx_ptr][0] ? cx_note[cx_ptr] : "");
212 putlog(LOG_MISC, "*", "* Please REPORT this BUG!");
213 putlog(LOG_MISC, "*", "* Check doc/BUG-REPORT on how to do so.");
214
215 x = creat("DEBUG", 0644);
216 setsock(x, SOCK_NONSOCK);
217 if (x < 0) {
218 putlog(LOG_MISC, "*", "* Failed to write DEBUG");
219 } else {
220 strcpy(s, ctime(&now));
221 dprintf(-x, "Debug (%s) written %s", ver, s);
222 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
223 #ifdef STATIC
224 dprintf(-x, "STATICALLY LINKED\n");
225 #endif
226 strcpy(s, "info library");
227 if (interp && (Tcl_Eval(interp, s) == TCL_OK))
228 dprintf(-x, "Using tcl library: %s (header version %s)\n",
229 interp->result, TCL_VERSION);
230 dprintf(-x, "Compile flags: %s\n", CCFLAGS);
231 dprintf(-x, "Link flags : %s\n", LDFLAGS);
232 dprintf(-x, "Strip flags : %s\n", STRIPFLAGS);
233 dprintf(-x, "Context: ");
234 cx_ptr = cx_ptr & 15;
235 for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
236 dprintf(-x, "%s/%d, [%s]\n ", cx_file[y], cx_line[y],
237 (cx_note[y][0]) ? cx_note[y] : "");
238 dprintf(-x, "%s/%d [%s]\n\n", cx_file[cx_ptr], cx_line[cx_ptr],
239 (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
240 tell_dcc(-x);
241 dprintf(-x, "\n");
242 debug_mem_to_dcc(-x);
243 killsock(x);
244 close(x);
245 putlog(LOG_MISC, "*", "* Wrote DEBUG");
246 }
247 }
248
249 void assert_failed (const char *module, const char *file, const int line)
250 {
251 write_debug();
252 if (!module) {
253 putlog(LOG_MISC, "*", "* In file %s, line %u", file, line);
254 } else {
255 putlog(LOG_MISC, "*", "* In file %s:%s, line %u", module, file, line);
256 }
257 fatal ("ASSERT FAILED -- CRASHING!", 1);
258 exit (1);
259 }
260
261 static void got_bus(int z)
262 {
263 write_debug();
264 fatal("BUS ERROR -- CRASHING!", 1);
265 #ifdef SA_RESETHAND
266 kill(getpid(), SIGBUS);
267 #else
268 exit(1);
269 #endif
270 }
271
272 static void got_segv(int z)
273 {
274 write_debug();
275 fatal("SEGMENT VIOLATION -- CRASHING!", 1);
276 #ifdef SA_RESETHAND
277 kill(getpid(), SIGSEGV);
278 #else
279 exit(1);
280 #endif
281 }
282
283 static void got_fpe(int z)
284 {
285 write_debug();
286 fatal("FLOATING POINT ERROR -- CRASHING!", 0);
287 }
288
289 static void got_term(int z)
290 {
291 write_userfile(-1);
292 check_tcl_event("sigterm");
293 if (die_on_sigterm) {
294 botnet_send_chat(-1, botnetnick, "ACK, I've been terminated!");
295 fatal("TERMINATE SIGNAL -- SIGNING OFF", 0);
296 } else {
297 putlog(LOG_MISC, "*", "RECEIVED TERMINATE SIGNAL (IGNORING)");
298 }
299 }
300
301 static void got_quit(int z)
302 {
303 check_tcl_event("sigquit");
304 putlog(LOG_MISC, "*", "RECEIVED QUIT SIGNAL (IGNORING)");
305 return;
306 }
307
308 static void got_hup(int z)
309 {
310 write_userfile(-1);
311 check_tcl_event("sighup");
312 if (die_on_sighup) {
313 fatal("HANGUP SIGNAL -- SIGNING OFF", 0);
314 } else
315 putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
316 do_restart = -2;
317 return;
318 }
319
320 static void got_alarm(int z)
321 {
322 /* a call to resolver (gethostbyname, etc) timed out */
323 longjmp(alarmret, 1);
324 /* STUPID STUPID STUPID */
325 /* return; */
326 }
327
328 /* got ILL signal -- log context and continue */
329 static void got_ill(int z)
330 {
331 check_tcl_event("sigill");
332 write_debug();
333 putlog(LOG_MISC, "*", "* Context: %s/%d [%s]", cx_file[cx_ptr],
334 cx_line[cx_ptr], (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
335 fatal ("GOT ILL SIGNAL -- CRASHING!", 1);
336 #ifdef SA_RESETHAND
337 kill(getpid(), SIGILL);
338 #else
339 exit(1);
340 #endif
341 }
342
343 static void do_arg(char *s)
344 {
345 int i;
346
347 if (s[0] == '-')
348 for (i = 1; i < strlen(s); i++) {
349 if (s[i] == 'n')
350 backgrd = 0;
351 if (s[i] == 'c') {
352 con_chan = 1;
353 term_z = 0;
354 }
355 if (s[i] == 't') {
356 con_chan = 0;
357 term_z = 1;
358 }
359 if (s[i] == 'm')
360 make_userfile = 1;
361 if (s[i] == 'v') {
362 char x[256], *z = x;
363
364 strcpy(x, egg_version);
365 newsplit(&z);
366 newsplit(&z);
367 printf("%s\n", version);
368 if (z[0])
369 printf(" (patches: %s)\n", z);
370 exit(0);
371 }
372 if (s[i] == 'h') {
373 printf("\n%s\n\n", version);
374 printf(EGG_USAGE);
375 printf("\n");
376 exit(0);
377 }
378 } else
379 strcpy(configfile, s);
380 }
381
382 void backup_userfile()
383 {
384 char s[150];
385
386 putlog(LOG_MISC, "*", USERF_BACKUP);
387 strcpy(s, userfile);
388 strcat(s, "~bak");
389 copyfile(userfile, s);
390 }
391
392 /* timer info: */
393 static int lastmin = 99;
394 static time_t then;
395 static struct tm *nowtm;
396
397 /* rally BB, this is not QUITE as bad as it seems <G> */
398 /* ONCE A SECOND */
399 static void core_secondly()
400 {
401 static int cnt = 0;
402 int miltime;
403
404 do_check_timers(&utimer); /* secondly timers */
405 cnt++;
406 if (cnt >= 10) { /* every 10 seconds */
407 cnt = 0;
408 check_expired_dcc();
409 if (con_chan && !backgrd) {
410 dprintf(DP_STDOUT, "\033[2J\033[1;1H");
411 tell_verbose_status(DP_STDOUT);
412 do_module_report(DP_STDOUT, 0, "server");
413 do_module_report(DP_STDOUT, 0, "channels");
414 tell_mem_status_dcc(DP_STDOUT);
415 }
416 }
417 context;
418 nowtm = localtime(&now);
419 if (nowtm->tm_min != lastmin) {
420 int i = 0;
421
422 /* once a minute */
423 lastmin = (lastmin + 1) % 60;
424 call_hook(HOOK_MINUTELY);
425 check_expired_ignores();
426 autolink_cycle(NULL); /* attempt autolinks */
427 /* in case for some reason more than 1 min has passed: */
428 while (nowtm->tm_min != lastmin) {
429 /* timer drift, dammit */
430 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm->tm_min);
431 context;
432 i++;
433 lastmin = (lastmin + 1) % 60;
434 call_hook(HOOK_MINUTELY);
435 }
436 if (i > 1)
437 putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
438 miltime = (nowtm->tm_hour * 100) + (nowtm->tm_min);
439 context;
440 if (((int) (nowtm->tm_min / 5) * 5) == (nowtm->tm_min)) { /* 5 min */
441 call_hook(HOOK_5MINUTELY);
442 check_botnet_pings();
443 context;
444 if (quick_logs == 0) {
445 flushlogs();
446 check_logsize();
447 }
448 if (miltime == 0) { /* at midnight */
449 char s[128];
450 int j;
451
452 s[my_strcpy(s, ctime(&now)) - 1] = 0;
453 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
454 backup_userfile();
455 for (j = 0; j < max_logs; j++) {
456 if (logs[j].filename != NULL && logs[j].f != NULL) {
457 fclose(logs[j].f);
458 logs[j].f = NULL;
459 }
460 }
461 }
462 }
463 context;
464 if (nowtm->tm_min == notify_users_at)
465 call_hook(HOOK_HOURLY);
466 context; /* these no longer need checking since they are
467 * all check vs minutely settings and we only
468 * get this far on the minute */
469 if (miltime == switch_logfiles_at) {
470 call_hook(HOOK_DAILY);
471 if (!keep_all_logs) {
472 putlog(LOG_MISC, "*", MISC_LOGSWITCH);
473 for (i = 0; i < max_logs; i++)
474 if (logs[i].filename) {
475 char s[1024];
476
477 if (logs[i].f) {
478 fclose(logs[i].f);
479 logs[i].f = NULL;
480 }
481 simple_sprintf(s, "%s.yesterday", logs[i].filename);
482 unlink(s);
483 movefile(logs[i].filename, s);
484 }
485 }
486 }
487 }
488 }
489
490 static void core_minutely()
491 {
492 context;
493 check_tcl_time(nowtm);
494 do_check_timers(&timer);
495 context;
496 if (quick_logs != 0) {
497 flushlogs();
498 check_logsize();
499 }
500 }
501
502 static void core_hourly()
503 {
504 context;
505 write_userfile(-1);
506 }
507
508 static void event_rehash()
509 {
510 context;
511 check_tcl_event("rehash");
512 }
513
514 static void event_prerehash()
515 {
516 context;
517 check_tcl_event("prerehash");
518 }
519
520 static void event_save()
521 {
522 context;
523 check_tcl_event("save");
524 }
525
526 static void event_logfile()
527 {
528 context;
529 check_tcl_event("logfile");
530 }
531
532 void kill_tcl();
533 extern module_entry *module_list;
534 void restart_chons();
535
536 #ifdef STATIC
537 void check_static(char *, char *(*)());
538
539 #include "mod/static.h"
540 #endif
541 int init_mem(), init_dcc_max(), init_userent(), init_misc(), init_bots(),
542 init_net(), init_modules(), init_tcl(int, char **),
543 init_language(int);
544
545 int main(int argc, char **argv)
546 {
547 int xx, i;
548 char buf[520], s[520];
549 FILE *f;
550 struct sigaction sv;
551 struct chanset_t *chan;
552
553 /* initialise context list */
554 for (i = 0; i < 16; i++) {
555 context;
556 }
557 #include "patch.h"
558 /* version info! */
559 sprintf(ver, "eggdrop v%s", egg_version);
560 sprintf(version, "Eggdrop v%s (c)1997 Robey Pointer (c)1999 Eggheads", egg_version);
561 /* now add on the patchlevel (for Tcl) */
562 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
563 strcat(egg_version, egg_xtra);
564 context;
565 #ifdef STOP_UAC
566 {
567 int nvpair[2];
568
569 nvpair[0] = SSIN_UACPROC;
570 nvpair[1] = UAC_NOPRINT;
571 setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
572 }
573 #endif
574 /* set up error traps: */
575 sv.sa_handler = got_bus;
576 sigemptyset(&sv.sa_mask);
577 #ifdef SA_RESETHAND
578 sv.sa_flags = SA_RESETHAND;
579 #else
580 sv.sa_flags = 0;
581 #endif
582 sigaction(SIGBUS, &sv, NULL);
583 sv.sa_handler = got_segv;
584 sigaction(SIGSEGV, &sv, NULL);
585 #ifdef SA_RESETHAND
586 sv.sa_flags = 0;
587 #endif
588 sv.sa_handler = got_fpe;
589 sigaction(SIGFPE, &sv, NULL);
590 sv.sa_handler = got_term;
591 sigaction(SIGTERM, &sv, NULL);
592 sv.sa_handler = got_hup;
593 sigaction(SIGHUP, &sv, NULL);
594 sv.sa_handler = got_quit;
595 sigaction(SIGQUIT, &sv, NULL);
596 sv.sa_handler = SIG_IGN;
597 sigaction(SIGPIPE, &sv, NULL);
598 sv.sa_handler = got_ill;
599 sigaction(SIGILL, &sv, NULL);
600 sv.sa_handler = got_alarm;
601 sigaction(SIGALRM, &sv, NULL);
602 /* initialize variables and stuff */
603 now = time(NULL);
604 chanset = NULL;
605 nowtm = localtime(&now);
606 lastmin = nowtm->tm_min;
607 srandom(now);
608 init_mem();
609 init_language(1);
610 if (argc > 1)
611 for (i = 1; i < argc; i++)
612 do_arg(argv[i]);
613 printf("\n%s\n", version);
614 init_dcc_max();
615 init_userent();
616 init_misc();
617 init_bots();
618 init_net();
619 init_modules();
620 init_tcl(argc, argv);
621 init_language(0);
622 #ifdef STATIC
623 link_statics();
624 #endif
625 context;
626 strcpy(s, ctime(&now));
627 s[strlen(s) - 1] = 0;
628 strcpy(&s[11], &s[20]);
629 putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
630 chanprog();
631 context;
632 if (encrypt_pass == 0) {
633 printf(MOD_NOCRYPT);
634 exit(1);
635 }
636 i = 0;
637 for (chan = chanset; chan; chan = chan->next)
638 i++;
639 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
640 botnetnick, i, count_users(userlist));
641 cache_miss = 0;
642 cache_hit = 0;
643 context;
644 sprintf(pid_file, "pid.%s", botnetnick);
645 context;
646 /* check for pre-existing eggdrop! */
647 f = fopen(pid_file, "r");
648 if (f != NULL) {
649 fgets(s, 10, f);
650 xx = atoi(s);
651 kill(xx, SIGCHLD); /* meaningless kill to determine if pid
652 * is used */
653 if (errno != ESRCH) {
654 printf(EGG_RUNNING1, origbotname);
655 printf(EGG_RUNNING2, pid_file);
656 exit(1);
657 }
658 }
659 context;
660 #ifndef CYGWIN_HACKS
661 /* move into background? */
662 if (backgrd) {
663 xx = fork();
664 if (xx == -1)
665 fatal("CANNOT FORK PROCESS.", 0);
666 if (xx != 0) {
667 FILE *fp;
668
669 /* need to attempt to write pid now, not later */
670 unlink(pid_file);
671 fp = fopen(pid_file, "w");
672 if (fp != NULL) {
673 fprintf(fp, "%u\n", xx);
674 if (fflush(fp)) {
675 /* kill bot incase a botchk is run from crond */
676 printf(EGG_NOWRITE, pid_file);
677 printf(" Try freeing some disk space\n");
678 fclose(fp);
679 unlink(pid_file);
680 exit(1);
681 }
682 fclose(fp);
683 } else
684 printf(EGG_NOWRITE, pid_file);
685 printf("Launched into the background (pid: %d)\n\n", xx);
686 #if HAVE_SETPGID
687 setpgid(xx, xx);
688 #endif
689 exit(0);
690 }
691 }
692 #endif
693 use_stderr = 0; /* stop writing to stderr now */
694 xx = getpid();
695 if ((xx != 0) && (!backgrd)) {
696 FILE *fp;
697
698 /* write pid to file */
699 unlink(pid_file);
700 fp = fopen(pid_file, "w");
701 if (fp != NULL) {
702 fprintf(fp, "%u\n", xx);
703 if (fflush(fp)) {
704 /* let the bot live since this doesn't appear to be a botchk */
705 printf(EGG_NOWRITE, pid_file);
706 fclose(fp);
707 unlink(pid_file);
708 }
709 fclose(fp);
710 } else
711 printf(EGG_NOWRITE, pid_file);
712 }
713 if (backgrd) {
714 /* ok, try to disassociate from controlling terminal */
715 /* (finger cross) */
716 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
717 setpgid(0, 0);
718 #endif
719 /* close out stdin/out/err */
720 freopen("/dev/null", "r", stdin);
721 freopen("/dev/null", "w", stdout);
722 freopen("/dev/null", "w", stderr);
723 #ifdef CYGWIN_HACKS
724 FreeConsole();
725 #endif
726 /* tcl wants those file handles kept open */
727 /* close(0); close(1); close(2); */
728 }
729 /* terminal emulating dcc chat */
730 if ((!backgrd) && (term_z)) {
731 int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
732
733 dcc[n].addr = iptolong(getmyip());
734 dcc[n].sock = STDOUT;
735 dcc[n].timeval = now;
736 dcc[n].u.chat->con_flags = conmask;
737 dcc[n].u.chat->strip_flags = STRIP_ALL;
738 dcc[n].status = STAT_ECHO;
739 strcpy(dcc[n].nick, "HQ");
740 strcpy(dcc[n].host, "llama@console");
741 dcc[n].user = get_user_by_handle(userlist, "HQ");
742 /* make sure there's an innocuous HQ user if needed */
743 if (!dcc[n].user) {
744 adduser(userlist, "HQ", "none", "-", USER_PARTY);
745 dcc[n].user = get_user_by_handle(userlist, "HQ");
746 }
747 setsock(STDOUT, 0); /* entry in net table */
748 dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
749 dcc_chatter(n);
750 }
751 then = now;
752 online_since = now;
753 autolink_cycle(NULL); /* hurry and connect to tandem bots */
754 add_help_reference("cmds1.help");
755 add_help_reference("cmds2.help");
756 add_help_reference("core.help");
757 add_hook(HOOK_SECONDLY, core_secondly);
758 add_hook(HOOK_MINUTELY, core_minutely);
759 add_hook(HOOK_HOURLY, core_hourly);
760 add_hook(HOOK_REHASH, event_rehash);
761 add_hook(HOOK_PRE_REHASH, event_prerehash);
762 add_hook(HOOK_USERFILE, event_save);
763 add_hook(HOOK_DAILY, event_logfile);
764
765 debug0("main: entering loop");
766 while (1) {
767 int socket_cleanup = 0;
768
769 context;
770 #if !defined(HAVE_PRE7_5_TCL) && !defined(HAVE_TCL_THREADS)
771 /* process a single tcl event */
772 Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
773 #endif
774 /* lets move some of this here, reducing the numer of actual
775 * calls to periodic_timers */
776 now = time(NULL);
777 random(); /* woop, lets really jumble things */
778 if (now != then) { /* once a second */
779 call_hook(HOOK_SECONDLY);
780 then = now;
781 }
782 context;
783 /* only do this every so often */
784 if (!socket_cleanup) {
785 /* clean up sockets that were just left for dead */
786 for (i = 0; i < dcc_total; i++) {
787 if (dcc[i].type == &DCC_LOST) {
788 dcc[i].type = (struct dcc_table *) (dcc[i].sock);
789 lostdcc(i);
790 i--;
791 }
792 }
793 /* check for server or dcc activity */
794 dequeue_sockets();
795 socket_cleanup = 5;
796 } else
797 socket_cleanup--;
798 /* new net routines: help me mary! */
799 xx = sockgets(buf, &i);
800 if (xx >= 0) { /* non-error */
801 int idx;
802
803 context;
804 for (idx = 0; idx < dcc_total; idx++)
805 if (dcc[idx].sock == xx) {
806 if (dcc[idx].type && dcc[idx].type->activity)
807 dcc[idx].type->activity(idx, buf, i);
808 else
809 putlog(LOG_MISC, "*",
810 "!!! untrapped dcc activity: type %s, sock %d",
811 dcc[idx].type->name, dcc[idx].sock);
812 break;
813 }
814 } else if (xx == -1) { /* EOF from someone */
815 int idx;
816
817 if ((i == STDOUT) && !backgrd)
818 fatal("END OF FILE ON TERMINAL", 0);
819 context;
820 for (idx = 0; idx < dcc_total; idx++)
821 if (dcc[idx].sock == i) {
822 if (dcc[idx].type && dcc[idx].type->eof)
823 dcc[idx].type->eof(idx);
824 else {
825 putlog(LOG_MISC, "*",
826 "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
827 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
828 killsock(i);
829 lostdcc(idx);
830 }
831 idx = dcc_total + 1;
832 }
833 if (idx == dcc_total) {
834 putlog(LOG_MISC, "*",
835 "(@) EOF socket %d, not a dcc socket, not anything.", i);
836 close(i);
837 killsock(i);
838 }
839 } else if ((xx == -2) && (errno != EINTR)) { /* select() error */
840 context;
841 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
842 for (i = 0; i < dcc_total; i++) {
843 if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
844 if (dcc[i].type == &DCC_LOST)
845 dcc[i].type = (struct dcc_table *) (dcc[i].sock);
846 putlog(LOG_MISC, "*",
847 "DCC socket %d (type %d, name '%s') expired -- pfft",
848 dcc[i].sock, dcc[i].type, dcc[i].nick);
849 killsock(dcc[i].sock);
850 lostdcc(i);
851 i--;
852 }
853 }
854 } else if (xx == (-3)) {
855 call_hook(HOOK_IDLE);
856 socket_cleanup = 0; /* if we've been idle, cleanup & flush */
857 }
858 if (do_restart) {
859 if (do_restart == -2)
860 rehash();
861 else {
862 /* unload as many modules as possible */
863 int f = 1;
864 module_entry *p;
865 Function x;
866 char xx[256];
867
868 while (f) {
869 f = 0;
870 for (p = module_list; p != NULL; p = p->next) {
871 dependancy *d = dependancy_list;
872 int ok = 1;
873
874 while (ok && d) {
875 if (d->needed == p)
876 ok = 0;
877 d = d->next;
878 }
879 if (ok) {
880 strcpy(xx, p->name);
881 if (module_unload(xx, origbotname) == NULL) {
882 f = 1;
883 break;
884 }
885 }
886 }
887 }
888 p = module_list;
889 if (p && p->next && p->next->next)
890 /* should be only 2 modules now -
891 * blowfish & eggdrop */
892 putlog(LOG_MISC, "*", MOD_STAGNANT);
893 context;
894 flushlogs();
895 context;
896 kill_tcl();
897 init_tcl(argc, argv);
898 init_language(0);
899 x = p->funcs[MODCALL_START];
900 x(0);
901 rehash();
902 restart_chons();
903 }
904 do_restart = 0;
905 }
906 }
907 }

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