/[cvs]/eggdrop1.9/src/main.c
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Revision 1.109 - (hide annotations) (download) (as text)
Fri Mar 22 16:01:20 2002 UTC (17 years, 7 months ago) by ite
Branch: MAIN
Changes since 1.108: +8 -7 lines
File MIME type: text/x-chdr
* Created eggdrop's library context.
* Moved registry stuff to libeggdrop.
* Some headers vs. prototypes cleanups.

1 guppy 1.56 /*
2 segfault 1.1 * main.c -- handles:
3 fabian 1.14 * core event handling
4     * signal handling
5     * command line arguments
6 guppy 1.56 *
7 ite 1.109 * $Id: main.c,v 1.108 2002/02/25 02:59:50 stdarg Exp $
8 segfault 1.1 */
9 guppy 1.56 /*
10     * Copyright (C) 1997 Robey Pointer
11 wcc 1.106 * Copyright (C) 1999, 2000, 2001, 2002 Eggheads Development Team
12 guppy 1.56 *
13 fabian 1.14 * This program is free software; you can redistribute it and/or
14     * modify it under the terms of the GNU General Public License
15     * as published by the Free Software Foundation; either version 2
16     * of the License, or (at your option) any later version.
17 guppy 1.56 *
18 segfault 1.1 * This program is distributed in the hope that it will be useful,
19     * but WITHOUT ANY WARRANTY; without even the implied warranty of
20     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
21     * GNU General Public License for more details.
22 guppy 1.56 *
23 segfault 1.1 * You should have received a copy of the GNU General Public License
24     * along with this program; if not, write to the Free Software
25 fabian 1.14 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
26     */
27 guppy 1.56 /*
28 segfault 1.1 * The author (Robey Pointer) can be reached at: robey@netcom.com
29     * NOTE: Robey is no long working on this code, there is a discussion
30 guppy 1.60 * list available at eggheads@eggheads.org.
31 segfault 1.1 */
32    
33 fabian 1.28 #include "main.h"
34 fabian 1.27 #include <fcntl.h>
35 segfault 1.1 #include <time.h>
36     #include <errno.h>
37     #include <signal.h>
38     #include <netdb.h>
39     #include <setjmp.h>
40 fabian 1.27
41 ite 1.76 #include <locale.h>
42    
43 fabian 1.27 #ifdef STOP_UAC /* osf/1 complains a lot */
44 segfault 1.1 #include <sys/sysinfo.h>
45     #define UAC_NOPRINT 0x00000001 /* Don't report unaligned fixups */
46     #endif
47 fabian 1.27 /* Some systems have a working sys/wait.h even though configure will
48     * decide it's not bsd compatable. Oh well.
49     */
50 guppy 1.49
51 segfault 1.1 #include "chan.h"
52     #include "modules.h"
53     #include "tandem.h"
54 fabian 1.43 #include "bg.h"
55 stdarg 1.82 #include "egg_timer.h"
56 stdarg 1.85 #include "core_binds.h"
57 ite 1.105 #include "logfile.h"
58     #include "misc.h"
59 ite 1.109 #include "script.h"
60 fabian 1.38
61 ite 1.96 #include "lib/adns/adns.h"
62 drummer 1.71
63 poptix 1.62 #ifdef CYGWIN_HACKS
64     #include <windows.h>
65     #endif
66    
67 segfault 1.1 #ifndef _POSIX_SOURCE
68 fabian 1.27 /* Solaris needs this */
69 segfault 1.1 #define _POSIX_SOURCE 1
70     #endif
71    
72 ite 1.104 extern char userfile[], botnetnick[];
73     extern int dcc_total, conmask, cache_hit, cache_miss;
74 fabian 1.27 extern struct dcc_t *dcc;
75     extern struct userrec *userlist;
76     extern struct chanset_t *chanset;
77     extern jmp_buf alarmret;
78    
79 segfault 1.1
80 guppy 1.56 /*
81 segfault 1.1 * Please use the PATCH macro instead of directly altering the version
82     * string from now on (it makes it much easier to maintain patches).
83     * Also please read the README file regarding your rights to distribute
84     * modified versions of this bot.
85     */
86    
87 ite 1.76 char egg_version[1024] = VERSION;
88     int egg_numver = VERSION_NUM;
89 segfault 1.1
90 ite 1.109 eggdrop_t *egg = NULL; /* Eggdrop's context */
91    
92 fabian 1.27 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 guppy 1.92 char pid_file[120]; /* Name of the file for the pid to be
110 fabian 1.27 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 guppy 1.52 int die_on_sigterm = 1; /* die if bot receives SIGTERM */
122 fabian 1.27 int resolve_timeout = 15; /* hostname/address lookup timeout */
123 guppy 1.72 char quit_msg[1024]; /* quit message */
124 fabian 1.27 time_t now; /* duh, now :) */
125 stdarg 1.108 egg_timeval_t egg_timeval_now; /* Same thing, but seconds and microseconds. */
126 fabian 1.27
127     /* Traffic stats
128     */
129 fabian 1.33 unsigned long otraffic_irc = 0;
130     unsigned long otraffic_irc_today = 0;
131     unsigned long otraffic_bn = 0;
132     unsigned long otraffic_bn_today = 0;
133     unsigned long otraffic_dcc = 0;
134     unsigned long otraffic_dcc_today = 0;
135     unsigned long otraffic_filesys = 0;
136     unsigned long otraffic_filesys_today = 0;
137     unsigned long otraffic_trans = 0;
138     unsigned long otraffic_trans_today = 0;
139     unsigned long otraffic_unknown = 0;
140     unsigned long otraffic_unknown_today = 0;
141     unsigned long itraffic_irc = 0;
142     unsigned long itraffic_irc_today = 0;
143     unsigned long itraffic_bn = 0;
144     unsigned long itraffic_bn_today = 0;
145     unsigned long itraffic_dcc = 0;
146     unsigned long itraffic_dcc_today = 0;
147     unsigned long itraffic_trans = 0;
148     unsigned long itraffic_trans_today = 0;
149     unsigned long itraffic_unknown = 0;
150     unsigned long itraffic_unknown_today = 0;
151 segfault 1.1
152 fabian 1.44 void fatal(const char *s, int recoverable)
153 segfault 1.1 {
154     int i;
155    
156     putlog(LOG_MISC, "*", "* %s", s);
157     flushlogs();
158     for (i = 0; i < dcc_total; i++)
159 fabian 1.19 if (dcc[i].sock >= 0)
160 fabian 1.15 killsock(dcc[i].sock);
161 segfault 1.1 unlink(pid_file);
162 fabian 1.43 if (!recoverable) {
163     bg_send_quit(BG_ABORT);
164 segfault 1.1 exit(1);
165 fabian 1.43 }
166 segfault 1.1 }
167    
168     static void check_expired_dcc()
169     {
170     int i;
171    
172     for (i = 0; i < dcc_total; i++)
173     if (dcc[i].type && dcc[i].type->timeout_val &&
174     ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
175     if (dcc[i].type->timeout)
176     dcc[i].type->timeout(i);
177     else if (dcc[i].type->eof)
178     dcc[i].type->eof(i);
179     else
180     continue;
181 fabian 1.27 /* Only timeout 1 socket per cycle, too risky for more */
182 segfault 1.1 return;
183     }
184     }
185    
186     static void got_bus(int z)
187     {
188     fatal("BUS ERROR -- CRASHING!", 1);
189     #ifdef SA_RESETHAND
190     kill(getpid(), SIGBUS);
191     #else
192 fabian 1.43 bg_send_quit(BG_ABORT);
193 segfault 1.1 exit(1);
194     #endif
195     }
196    
197     static void got_segv(int z)
198     {
199     fatal("SEGMENT VIOLATION -- CRASHING!", 1);
200     #ifdef SA_RESETHAND
201     kill(getpid(), SIGSEGV);
202     #else
203 fabian 1.43 bg_send_quit(BG_ABORT);
204 segfault 1.1 exit(1);
205     #endif
206     }
207    
208     static void got_fpe(int z)
209     {
210     fatal("FLOATING POINT ERROR -- CRASHING!", 0);
211     }
212    
213     static void got_term(int z)
214     {
215     write_userfile(-1);
216 stdarg 1.85 check_bind_event("sigterm");
217 segfault 1.1 if (die_on_sigterm) {
218     fatal("TERMINATE SIGNAL -- SIGNING OFF", 0);
219     } else {
220     putlog(LOG_MISC, "*", "RECEIVED TERMINATE SIGNAL (IGNORING)");
221     }
222     }
223    
224     static void got_quit(int z)
225     {
226 stdarg 1.85 check_bind_event("sigquit");
227 segfault 1.1 putlog(LOG_MISC, "*", "RECEIVED QUIT SIGNAL (IGNORING)");
228     return;
229     }
230    
231     static void got_hup(int z)
232     {
233     write_userfile(-1);
234 stdarg 1.85 check_bind_event("sighup");
235 segfault 1.1 if (die_on_sighup) {
236     fatal("HANGUP SIGNAL -- SIGNING OFF", 0);
237     } else
238     putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
239     do_restart = -2;
240     return;
241     }
242    
243 fabian 1.27 /* A call to resolver (gethostbyname, etc) timed out
244     */
245 segfault 1.1 static void got_alarm(int z)
246     {
247     longjmp(alarmret, 1);
248 fabian 1.27
249     /* -Never reached- */
250 segfault 1.1 }
251    
252 guppy 1.101 /* Got ILL signal
253 fabian 1.27 */
254 segfault 1.1 static void got_ill(int z)
255     {
256 stdarg 1.85 check_bind_event("sigill");
257 fabian 1.10 }
258    
259 segfault 1.1 static void do_arg(char *s)
260     {
261 guppy 1.49 char x[1024], *z = x;
262 segfault 1.1 int i;
263    
264     if (s[0] == '-')
265     for (i = 1; i < strlen(s); i++) {
266 guppy 1.49 switch (s[i]) {
267     case 'n':
268 segfault 1.1 backgrd = 0;
269 guppy 1.49 break;
270     case 'c':
271 segfault 1.1 con_chan = 1;
272     term_z = 0;
273 guppy 1.49 break;
274     case 't':
275 segfault 1.1 con_chan = 0;
276     term_z = 1;
277 guppy 1.49 break;
278     case 'm':
279 segfault 1.1 make_userfile = 1;
280 guppy 1.49 break;
281     case 'v':
282     strncpyz(x, egg_version, sizeof x);
283 segfault 1.1 newsplit(&z);
284     newsplit(&z);
285     printf("%s\n", version);
286     if (z[0])
287     printf(" (patches: %s)\n", z);
288 fabian 1.43 bg_send_quit(BG_ABORT);
289 segfault 1.1 exit(0);
290 guppy 1.49 break; /* this should never be reached */
291     case 'h':
292 segfault 1.1 printf("\n%s\n\n", version);
293 ite 1.73 printf(_("Command line arguments:\n\
294     -h help\n\
295     -v print version and exit\n\
296     -n don't go into the background\n\
297     -c (with -n) display channel stats every 10 seconds\n\
298     -t (with -n) use terminal to simulate dcc-chat\n\
299     -m userfile creation mode\n\
300     optional config filename (default 'eggdrop.conf')\n"));
301 segfault 1.1 printf("\n");
302 fabian 1.43 bg_send_quit(BG_ABORT);
303 segfault 1.1 exit(0);
304 guppy 1.49 break; /* this should never be reached */
305 segfault 1.1 }
306     } else
307 guppy 1.49 strncpyz(configfile, s, sizeof configfile);
308 segfault 1.1 }
309    
310 fabian 1.44 void backup_userfile(void)
311 segfault 1.1 {
312 guppy 1.49 char s[125];
313 segfault 1.1
314 ite 1.73 putlog(LOG_MISC, "*", _("Backing up user file..."));
315 tothwolf 1.91 snprintf(s, sizeof s, "%s~bak", userfile);
316 segfault 1.1 copyfile(userfile, s);
317     }
318    
319 fabian 1.27 /* Timer info */
320     static int lastmin = 99;
321     static struct tm nowtm;
322 segfault 1.1
323 fabian 1.34 /* Called once a second.
324 fabian 1.27 */
325 segfault 1.1 static void core_secondly()
326     {
327     static int cnt = 0;
328     int miltime;
329    
330 stdarg 1.82 call_hook(HOOK_SECONDLY); /* Will be removed later */
331 segfault 1.1 cnt++;
332 fabian 1.27 if (cnt >= 10) { /* Every 10 seconds */
333 segfault 1.1 cnt = 0;
334     check_expired_dcc();
335     if (con_chan && !backgrd) {
336     dprintf(DP_STDOUT, "\033[2J\033[1;1H");
337     tell_verbose_status(DP_STDOUT);
338     do_module_report(DP_STDOUT, 0, "server");
339     do_module_report(DP_STDOUT, 0, "channels");
340     }
341     }
342 tothwolf 1.79 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
343 fabian 1.17 if (nowtm.tm_min != lastmin) {
344 segfault 1.1 int i = 0;
345    
346 fabian 1.27 /* Once a minute */
347 segfault 1.1 lastmin = (lastmin + 1) % 60;
348     call_hook(HOOK_MINUTELY);
349     check_expired_ignores();
350 fabian 1.27 autolink_cycle(NULL); /* Attempt autolinks */
351     /* In case for some reason more than 1 min has passed: */
352 fabian 1.17 while (nowtm.tm_min != lastmin) {
353 fabian 1.27 /* Timer drift, dammit */
354 fabian 1.17 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
355 segfault 1.1 i++;
356     lastmin = (lastmin + 1) % 60;
357     call_hook(HOOK_MINUTELY);
358     }
359     if (i > 1)
360     putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
361 fabian 1.17 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
362     if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
363 segfault 1.1 call_hook(HOOK_5MINUTELY);
364 guppy 1.49 if (!miltime) { /* At midnight */
365     char s[25];
366 segfault 1.1
367 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
368 fabian 1.4 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
369 guppy 1.69 call_hook(HOOK_BACKUP);
370 stdarg 1.90 call_hook(HOOK_DAILY);
371 segfault 1.1 }
372     }
373 fabian 1.17 if (nowtm.tm_min == notify_users_at)
374 segfault 1.1 call_hook(HOOK_HOURLY);
375     }
376     }
377    
378     static void core_minutely()
379     {
380 stdarg 1.85 check_bind_time(&nowtm);
381 segfault 1.1 }
382    
383     static void core_hourly()
384     {
385     write_userfile(-1);
386     }
387    
388     static void event_rehash()
389     {
390 stdarg 1.85 check_bind_event("rehash");
391 segfault 1.1 }
392    
393     static void event_prerehash()
394     {
395 stdarg 1.85 check_bind_event("prerehash");
396 segfault 1.1 }
397    
398     static void event_save()
399     {
400 stdarg 1.85 check_bind_event("save");
401 segfault 1.1 }
402    
403     static void event_logfile()
404     {
405 stdarg 1.85 check_bind_event("logfile");
406 segfault 1.1 }
407    
408 fabian 1.13 static void event_resettraffic()
409     {
410     otraffic_irc += otraffic_irc_today;
411     itraffic_irc += itraffic_irc_today;
412     otraffic_bn += otraffic_bn_today;
413     itraffic_bn += itraffic_bn_today;
414     otraffic_dcc += otraffic_dcc_today;
415     itraffic_dcc += itraffic_dcc_today;
416     otraffic_unknown += otraffic_unknown_today;
417     itraffic_unknown += itraffic_unknown_today;
418     otraffic_trans += otraffic_trans_today;
419     itraffic_trans += itraffic_trans_today;
420     otraffic_irc_today = otraffic_bn_today = 0;
421     otraffic_dcc_today = otraffic_unknown_today = 0;
422     itraffic_irc_today = itraffic_bn_today = 0;
423     itraffic_dcc_today = itraffic_unknown_today = 0;
424 fabian 1.18 itraffic_trans_today = otraffic_trans_today = 0;
425 fabian 1.13 }
426    
427 guppy 1.61 static void event_loaded()
428     {
429 stdarg 1.85 check_bind_event("loaded");
430 guppy 1.61 }
431    
432 segfault 1.1 void kill_tcl();
433     extern module_entry *module_list;
434     void restart_chons();
435    
436 tothwolf 1.97 int init_userent(), init_net(),
437 ite 1.109 init_tcl(int, char **);
438 stdarg 1.78 void botnet_init();
439 stdarg 1.88 void dns_init();
440 stdarg 1.85 void binds_init();
441 stdarg 1.94 void dcc_init();
442 fabian 1.11
443 fabian 1.44 void patch(const char *str)
444 fabian 1.11 {
445     char *p = strchr(egg_version, '+');
446    
447     if (!p)
448     p = &egg_version[strlen(egg_version)];
449     sprintf(p, "+%s", str);
450     egg_numver++;
451     sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
452     }
453 segfault 1.1
454 stdarg 1.100 /*
455 fabian 1.45 static inline void garbage_collect(void)
456     {
457     static u_8bit_t run_cnt = 0;
458    
459     if (run_cnt == 3)
460     garbage_collect_tclhash();
461     else
462     run_cnt++;
463     }
464 stdarg 1.100 */
465 fabian 1.45
466 segfault 1.1 int main(int argc, char **argv)
467     {
468     int xx, i;
469 guppy 1.49 char buf[520], s[25];
470 segfault 1.1 FILE *f;
471     struct sigaction sv;
472     struct chanset_t *chan;
473 stdarg 1.82 egg_timeval_t howlong;
474 segfault 1.1
475 tothwolf 1.81 #ifdef DEBUG
476 fabian 1.21 /* Make sure it can write core, if you make debug. Else it's pretty
477     * useless (dw)
478     */
479 fabian 1.15 {
480     #include <sys/resource.h>
481     struct rlimit cdlim;
482 fabian 1.21
483 fabian 1.15 cdlim.rlim_cur = RLIM_INFINITY;
484     cdlim.rlim_max = RLIM_INFINITY;
485 fabian 1.32 setrlimit(RLIMIT_CORE, &cdlim);
486 fabian 1.15 }
487     #endif
488 fabian 1.32
489 ite 1.99 #ifdef ENABLE_NLS
490 ite 1.76 setlocale(LC_MESSAGES, "");
491     bindtextdomain(PACKAGE, LOCALEDIR);
492     textdomain(PACKAGE);
493 ite 1.99 #endif
494 ite 1.76
495 segfault 1.1 #include "patch.h"
496 fabian 1.27 /* Version info! */
497 tothwolf 1.91 snprintf(ver, sizeof ver, "eggdrop v%s", egg_version);
498 wcc 1.106 snprintf(version, sizeof version, "Eggdrop v%s (C) 1997 Robey Pointer (C) 2002 Eggheads",
499 guppy 1.56 egg_version);
500 fabian 1.27 /* Now add on the patchlevel (for Tcl) */
501 fabian 1.2 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
502 segfault 1.1 strcat(egg_version, egg_xtra);
503     #ifdef STOP_UAC
504     {
505     int nvpair[2];
506    
507     nvpair[0] = SSIN_UACPROC;
508     nvpair[1] = UAC_NOPRINT;
509     setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
510     }
511     #endif
512 fabian 1.27
513     /* Set up error traps: */
514 segfault 1.1 sv.sa_handler = got_bus;
515     sigemptyset(&sv.sa_mask);
516     #ifdef SA_RESETHAND
517     sv.sa_flags = SA_RESETHAND;
518     #else
519     sv.sa_flags = 0;
520     #endif
521     sigaction(SIGBUS, &sv, NULL);
522     sv.sa_handler = got_segv;
523     sigaction(SIGSEGV, &sv, NULL);
524     #ifdef SA_RESETHAND
525     sv.sa_flags = 0;
526     #endif
527     sv.sa_handler = got_fpe;
528     sigaction(SIGFPE, &sv, NULL);
529     sv.sa_handler = got_term;
530     sigaction(SIGTERM, &sv, NULL);
531     sv.sa_handler = got_hup;
532     sigaction(SIGHUP, &sv, NULL);
533     sv.sa_handler = got_quit;
534     sigaction(SIGQUIT, &sv, NULL);
535     sv.sa_handler = SIG_IGN;
536     sigaction(SIGPIPE, &sv, NULL);
537     sv.sa_handler = got_ill;
538     sigaction(SIGILL, &sv, NULL);
539     sv.sa_handler = got_alarm;
540     sigaction(SIGALRM, &sv, NULL);
541 fabian 1.27
542     /* Initialize variables and stuff */
543 stdarg 1.108 timer_get_time(&egg_timeval_now);
544     now = egg_timeval_now.sec;
545 segfault 1.1 chanset = NULL;
546 tothwolf 1.79 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
547 fabian 1.17 lastmin = nowtm.tm_min;
548 poptix 1.63 srandom(now % (getpid() + getppid()));
549 segfault 1.1 if (argc > 1)
550     for (i = 1; i < argc; i++)
551     do_arg(argv[i]);
552     printf("\n%s\n", version);
553 guppy 1.93 printf(" *** WARNING: Do NOT run this DEVELOPMENT version for any purpose other than testing.\n\n");
554 guppy 1.53
555     /* Don't allow eggdrop to run as root */
556     if (((int) getuid() == 0) || ((int) geteuid() == 0))
557 ite 1.76 fatal(_("ERROR: Eggdrop will not run as root!"), 0);
558 guppy 1.53
559 ite 1.109 egg = eggdrop_new();
560     script_init(egg);
561 stdarg 1.98 binds_init();
562 ite 1.109 modules_init();
563 stdarg 1.90 logfile_init();
564 stdarg 1.89 timer_init();
565 stdarg 1.88 dns_init();
566 stdarg 1.85 core_binds_init();
567 stdarg 1.94 dcc_init();
568 segfault 1.1 init_userent();
569 stdarg 1.78 botnet_init();
570 segfault 1.1 init_net();
571 stdarg 1.80
572 fabian 1.43 if (backgrd)
573     bg_prepare_split();
574 stdarg 1.80
575 fabian 1.8 init_tcl(argc, argv);
576 stdarg 1.80
577 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
578 segfault 1.1 strcpy(&s[11], &s[20]);
579     putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
580     chanprog();
581 guppy 1.49 if (!encrypt_pass) {
582 ite 1.73 printf(_("You have installed modules but have not selected an encryption\n\
583     module, please consult the default config file for info.\n"));
584 fabian 1.43 bg_send_quit(BG_ABORT);
585 segfault 1.1 exit(1);
586     }
587     i = 0;
588     for (chan = chanset; chan; chan = chan->next)
589     i++;
590 fabian 1.4 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
591 segfault 1.1 botnetnick, i, count_users(userlist));
592     cache_miss = 0;
593     cache_hit = 0;
594 guppy 1.92
595     if (!pid_file[0])
596     snprintf(pid_file, sizeof pid_file, "pid.%s", botnetnick);
597 fabian 1.27
598     /* Check for pre-existing eggdrop! */
599 segfault 1.1 f = fopen(pid_file, "r");
600     if (f != NULL) {
601     fgets(s, 10, f);
602     xx = atoi(s);
603 fabian 1.27 kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
604     is used */
605 segfault 1.1 if (errno != ESRCH) {
606 guppy 1.103 printf(_("I detect %s already running from this directory.\n"), botnetnick);
607 ite 1.73 printf(_("If this is incorrect, erase the %s\n"), pid_file);
608 fabian 1.43 bg_send_quit(BG_ABORT);
609 segfault 1.1 exit(1);
610     }
611     }
612 fabian 1.27
613     /* Move into background? */
614 segfault 1.1 if (backgrd) {
615 fabian 1.38 #ifndef CYGWIN_HACKS
616 fabian 1.43 bg_do_split();
617 fabian 1.38 } else { /* !backgrd */
618 fabian 1.5 #endif
619 fabian 1.38 xx = getpid();
620     if (xx != 0) {
621     FILE *fp;
622    
623     /* Write pid to file */
624     unlink(pid_file);
625     fp = fopen(pid_file, "w");
626     if (fp != NULL) {
627     fprintf(fp, "%u\n", xx);
628     if (fflush(fp)) {
629     /* Let the bot live since this doesn't appear to be a botchk */
630 ite 1.73 printf(_("* Warning! Could not write %s file!\n"), pid_file);
631 fabian 1.38 fclose(fp);
632     unlink(pid_file);
633     } else
634     fclose(fp);
635 fabian 1.27 } else
636 ite 1.73 printf(_("* Warning! Could not write %s file!\n"), pid_file);
637 fabian 1.38 #ifdef CYGWIN_HACKS
638 guppy 1.68 printf("Launched into the background (pid: %d)\n\n", xx);
639 fabian 1.38 #endif
640     }
641 segfault 1.1 }
642 fabian 1.38
643     use_stderr = 0; /* Stop writing to stderr now */
644 segfault 1.1 if (backgrd) {
645 fabian 1.27 /* Ok, try to disassociate from controlling terminal (finger cross) */
646 fabian 1.5 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
647 segfault 1.1 setpgid(0, 0);
648     #endif
649 fabian 1.38 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
650 segfault 1.1 freopen("/dev/null", "r", stdin);
651     freopen("/dev/null", "w", stdout);
652     freopen("/dev/null", "w", stderr);
653 poptix 1.62 #ifdef CYGWIN_HACKS
654     FreeConsole();
655     #endif
656 segfault 1.1 }
657 fabian 1.27
658     /* Terminal emulating dcc chat */
659 fabian 1.42 if (!backgrd && term_z) {
660 segfault 1.1 int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
661    
662 drummer 1.71 dcc[n].addr[0] = '\0';
663 segfault 1.1 dcc[n].sock = STDOUT;
664     dcc[n].timeval = now;
665     dcc[n].u.chat->con_flags = conmask;
666     dcc[n].u.chat->strip_flags = STRIP_ALL;
667     dcc[n].status = STAT_ECHO;
668     strcpy(dcc[n].nick, "HQ");
669     strcpy(dcc[n].host, "llama@console");
670 ite 1.107 dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
671 fabian 1.27 /* Make sure there's an innocuous HQ user if needed */
672 segfault 1.1 if (!dcc[n].user) {
673 ite 1.107 userlist = adduser(userlist, dcc[n].nick, "none", "-", USER_PARTY);
674     dcc[n].user = get_user_by_handle(userlist, dcc[n].nick);
675 segfault 1.1 }
676 fabian 1.27 setsock(STDOUT, 0); /* Entry in net table */
677 segfault 1.1 dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
678     dcc_chatter(n);
679     }
680 fabian 1.27
681 segfault 1.1 online_since = now;
682 fabian 1.27 autolink_cycle(NULL); /* Hurry and connect to tandem bots */
683 segfault 1.1 add_help_reference("cmds1.help");
684     add_help_reference("cmds2.help");
685     add_help_reference("core.help");
686 stdarg 1.82 howlong.sec = 1;
687     howlong.usec = 0;
688     timer_create_repeater(&howlong, (Function) core_secondly);
689 fabian 1.22 add_hook(HOOK_MINUTELY, (Function) core_minutely);
690     add_hook(HOOK_HOURLY, (Function) core_hourly);
691     add_hook(HOOK_REHASH, (Function) event_rehash);
692     add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
693     add_hook(HOOK_USERFILE, (Function) event_save);
694 guppy 1.69 add_hook(HOOK_BACKUP, (Function) backup_userfile);
695 fabian 1.22 add_hook(HOOK_DAILY, (Function) event_logfile);
696     add_hook(HOOK_DAILY, (Function) event_resettraffic);
697 guppy 1.61 add_hook(HOOK_LOADED, (Function) event_loaded);
698    
699     call_hook(HOOK_LOADED);
700 segfault 1.1
701     debug0("main: entering loop");
702     while (1) {
703     int socket_cleanup = 0;
704    
705 fabian 1.43 #if !defined(HAVE_PRE7_5_TCL)
706 fabian 1.27 /* Process a single tcl event */
707 segfault 1.1 Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
708 fabian 1.5 #endif
709 fabian 1.45
710 fabian 1.27 /* Lets move some of this here, reducing the numer of actual
711     * calls to periodic_timers
712     */
713 stdarg 1.108 timer_get_time(&egg_timeval_now);
714     now = egg_timeval_now.sec;
715 fabian 1.27 random(); /* Woop, lets really jumble things */
716 stdarg 1.82 timer_run();
717 fabian 1.45
718     /* Only do this every so often. */
719 segfault 1.1 if (!socket_cleanup) {
720 fabian 1.45 socket_cleanup = 5;
721    
722     /* Remove dead dcc entries. */
723 fabian 1.16 dcc_remove_lost();
724 fabian 1.45
725     /* Check for server or dcc activity. */
726 segfault 1.1 dequeue_sockets();
727     } else
728     socket_cleanup--;
729 fabian 1.45
730     /* Free unused structures. */
731 stdarg 1.100 /* garbage_collect(); */
732 fabian 1.45
733 segfault 1.1 xx = sockgets(buf, &i);
734 stdarg 1.108 timer_get_time(&egg_timeval_now);
735 fabian 1.27 if (xx >= 0) { /* Non-error */
736 segfault 1.1 int idx;
737    
738     for (idx = 0; idx < dcc_total; idx++)
739     if (dcc[idx].sock == xx) {
740 fabian 1.13 if (dcc[idx].type && dcc[idx].type->activity) {
741 fabian 1.27 /* Traffic stats */
742     if (dcc[idx].type->name) {
743     if (!strncmp(dcc[idx].type->name, "BOT", 3))
744     itraffic_bn_today += strlen(buf) + 1;
745     else if (!strcmp(dcc[idx].type->name, "SERVER"))
746     itraffic_irc_today += strlen(buf) + 1;
747     else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
748     itraffic_dcc_today += strlen(buf) + 1;
749     else if (!strncmp(dcc[idx].type->name, "FILES", 5))
750     itraffic_dcc_today += strlen(buf) + 1;
751     else if (!strcmp(dcc[idx].type->name, "SEND"))
752     itraffic_trans_today += strlen(buf) + 1;
753     else if (!strncmp(dcc[idx].type->name, "GET", 3))
754     itraffic_trans_today += strlen(buf) + 1;
755     else
756     itraffic_unknown_today += strlen(buf) + 1;
757     }
758 guppy 1.56 dcc[idx].type->activity(idx, buf, i);
759 fabian 1.13 } else
760 segfault 1.1 putlog(LOG_MISC, "*",
761     "!!! untrapped dcc activity: type %s, sock %d",
762     dcc[idx].type->name, dcc[idx].sock);
763     break;
764     }
765     } else if (xx == -1) { /* EOF from someone */
766     int idx;
767    
768 fabian 1.45 if (i == STDOUT && !backgrd)
769 segfault 1.1 fatal("END OF FILE ON TERMINAL", 0);
770     for (idx = 0; idx < dcc_total; idx++)
771     if (dcc[idx].sock == i) {
772     if (dcc[idx].type && dcc[idx].type->eof)
773     dcc[idx].type->eof(idx);
774     else {
775     putlog(LOG_MISC, "*",
776     "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
777 fabian 1.2 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
778     killsock(i);
779 segfault 1.1 lostdcc(idx);
780     }
781     idx = dcc_total + 1;
782     }
783     if (idx == dcc_total) {
784     putlog(LOG_MISC, "*",
785 fabian 1.2 "(@) EOF socket %d, not a dcc socket, not anything.", i);
786     close(i);
787     killsock(i);
788 segfault 1.1 }
789 fabian 1.45 } else if (xx == -2 && errno != EINTR) { /* select() error */
790 segfault 1.1 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
791     for (i = 0; i < dcc_total; i++) {
792     if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
793     putlog(LOG_MISC, "*",
794     "DCC socket %d (type %d, name '%s') expired -- pfft",
795     dcc[i].sock, dcc[i].type, dcc[i].nick);
796     killsock(dcc[i].sock);
797     lostdcc(i);
798     i--;
799     }
800     }
801 fabian 1.45 } else if (xx == -3) {
802 segfault 1.1 call_hook(HOOK_IDLE);
803 fabian 1.27 socket_cleanup = 0; /* If we've been idle, cleanup & flush */
804 segfault 1.1 }
805 fabian 1.27
806 segfault 1.1 if (do_restart) {
807     if (do_restart == -2)
808     rehash();
809     else {
810 fabian 1.27 /* Unload as many modules as possible */
811 segfault 1.1 int f = 1;
812     module_entry *p;
813     Function x;
814     char xx[256];
815 guppy 1.59
816     /* oops, I guess we should call this event before tcl is restarted */
817 stdarg 1.85 check_bind_event("prerestart");
818 segfault 1.1
819     while (f) {
820     f = 0;
821     for (p = module_list; p != NULL; p = p->next) {
822     dependancy *d = dependancy_list;
823     int ok = 1;
824    
825     while (ok && d) {
826     if (d->needed == p)
827     ok = 0;
828     d = d->next;
829     }
830     if (ok) {
831     strcpy(xx, p->name);
832 guppy 1.103 if (module_unload(xx, botnetnick) == NULL) {
833 segfault 1.1 f = 1;
834     break;
835     }
836     }
837     }
838     }
839     p = module_list;
840     if (p && p->next && p->next->next)
841 fabian 1.45 /* Should be only 2 modules now - blowfish (or some other
842     encryption module) and eggdrop. */
843 ite 1.73 putlog(LOG_MISC, "*", _("Stagnant module; there WILL be memory leaks!"));
844 segfault 1.1 flushlogs();
845     kill_tcl();
846 stdarg 1.87 timer_destroy_all(); /* Destroy all timers. */
847 fabian 1.8 init_tcl(argc, argv);
848 fabian 1.30 /* We expect the encryption module as the current module pointed
849     * to by `module_list'.
850     */
851 segfault 1.1 x = p->funcs[MODCALL_START];
852 fabian 1.30 /* `NULL' indicates that we just recently restarted. The module
853     * is expected to re-initialise as needed.
854     */
855     x(NULL);
856 segfault 1.1 rehash();
857     restart_chons();
858 guppy 1.61 call_hook(HOOK_LOADED);
859 segfault 1.1 }
860     do_restart = 0;
861     }
862     }
863     }

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