/[cvs]/eggdrop1.9/src/main.c
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Revision 1.106 - (hide annotations) (download) (as text)
Thu Feb 7 22:19:05 2002 UTC (17 years, 6 months ago) by wcc
Branch: MAIN
Changes since 1.105: +3 -3 lines
File MIME type: text/x-chdr
Updated copyright info for 2002

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 wcc 1.106 * $Id: main.c,v 1.105 2002/01/19 20:08:58 ite 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 fabian 1.38
60 ite 1.96 #include "lib/adns/adns.h"
61 drummer 1.71
62 poptix 1.62 #ifdef CYGWIN_HACKS
63     #include <windows.h>
64     #endif
65    
66 segfault 1.1 #ifndef _POSIX_SOURCE
67 fabian 1.27 /* Solaris needs this */
68 segfault 1.1 #define _POSIX_SOURCE 1
69     #endif
70    
71 ite 1.104 extern char userfile[], botnetnick[];
72     extern int dcc_total, conmask, cache_hit, cache_miss;
73 fabian 1.27 extern struct dcc_t *dcc;
74     extern struct userrec *userlist;
75     extern struct chanset_t *chanset;
76     extern jmp_buf alarmret;
77    
78 segfault 1.1
79 guppy 1.56 /*
80 segfault 1.1 * 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 ite 1.76 char egg_version[1024] = VERSION;
87     int egg_numver = VERSION_NUM;
88 segfault 1.1
89 fabian 1.27 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     time_t online_since; /* Unix-time that the bot loaded up */
103     int make_userfile = 0; /* Using bot in make-userfile mode? (first
104     user to 'hello' becomes master) */
105     char owner[121] = ""; /* Permanent owner(s) of the bot */
106 guppy 1.92 char pid_file[120]; /* Name of the file for the pid to be
107 fabian 1.27 stored in */
108     int save_users_at = 0; /* How many minutes past the hour to
109     save the userfile? */
110     int notify_users_at = 0; /* How many minutes past the hour to
111     notify users of notes? */
112     char version[81]; /* Version info (long form) */
113     char ver[41]; /* Version info (short form) */
114     char egg_xtra[2048]; /* Patch info */
115     int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
116     int do_restart = 0; /* .restart has been called, restart asap */
117     int die_on_sighup = 0; /* die if bot receives SIGHUP */
118 guppy 1.52 int die_on_sigterm = 1; /* die if bot receives SIGTERM */
119 fabian 1.27 int resolve_timeout = 15; /* hostname/address lookup timeout */
120 guppy 1.72 char quit_msg[1024]; /* quit message */
121 fabian 1.27 time_t now; /* duh, now :) */
122    
123     /* Traffic stats
124     */
125 fabian 1.33 unsigned long otraffic_irc = 0;
126     unsigned long otraffic_irc_today = 0;
127     unsigned long otraffic_bn = 0;
128     unsigned long otraffic_bn_today = 0;
129     unsigned long otraffic_dcc = 0;
130     unsigned long otraffic_dcc_today = 0;
131     unsigned long otraffic_filesys = 0;
132     unsigned long otraffic_filesys_today = 0;
133     unsigned long otraffic_trans = 0;
134     unsigned long otraffic_trans_today = 0;
135     unsigned long otraffic_unknown = 0;
136     unsigned long otraffic_unknown_today = 0;
137     unsigned long itraffic_irc = 0;
138     unsigned long itraffic_irc_today = 0;
139     unsigned long itraffic_bn = 0;
140     unsigned long itraffic_bn_today = 0;
141     unsigned long itraffic_dcc = 0;
142     unsigned long itraffic_dcc_today = 0;
143     unsigned long itraffic_trans = 0;
144     unsigned long itraffic_trans_today = 0;
145     unsigned long itraffic_unknown = 0;
146     unsigned long itraffic_unknown_today = 0;
147 segfault 1.1
148 fabian 1.44 void fatal(const char *s, int recoverable)
149 segfault 1.1 {
150     int i;
151    
152     putlog(LOG_MISC, "*", "* %s", s);
153     flushlogs();
154     for (i = 0; i < dcc_total; i++)
155 fabian 1.19 if (dcc[i].sock >= 0)
156 fabian 1.15 killsock(dcc[i].sock);
157 segfault 1.1 unlink(pid_file);
158 fabian 1.43 if (!recoverable) {
159     bg_send_quit(BG_ABORT);
160 segfault 1.1 exit(1);
161 fabian 1.43 }
162 segfault 1.1 }
163    
164     static void check_expired_dcc()
165     {
166     int i;
167    
168     for (i = 0; i < dcc_total; i++)
169     if (dcc[i].type && dcc[i].type->timeout_val &&
170     ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
171     if (dcc[i].type->timeout)
172     dcc[i].type->timeout(i);
173     else if (dcc[i].type->eof)
174     dcc[i].type->eof(i);
175     else
176     continue;
177 fabian 1.27 /* Only timeout 1 socket per cycle, too risky for more */
178 segfault 1.1 return;
179     }
180     }
181    
182     static void got_bus(int z)
183     {
184     fatal("BUS ERROR -- CRASHING!", 1);
185     #ifdef SA_RESETHAND
186     kill(getpid(), SIGBUS);
187     #else
188 fabian 1.43 bg_send_quit(BG_ABORT);
189 segfault 1.1 exit(1);
190     #endif
191     }
192    
193     static void got_segv(int z)
194     {
195     fatal("SEGMENT VIOLATION -- CRASHING!", 1);
196     #ifdef SA_RESETHAND
197     kill(getpid(), SIGSEGV);
198     #else
199 fabian 1.43 bg_send_quit(BG_ABORT);
200 segfault 1.1 exit(1);
201     #endif
202     }
203    
204     static void got_fpe(int z)
205     {
206     fatal("FLOATING POINT ERROR -- CRASHING!", 0);
207     }
208    
209     static void got_term(int z)
210     {
211     write_userfile(-1);
212 stdarg 1.85 check_bind_event("sigterm");
213 segfault 1.1 if (die_on_sigterm) {
214     fatal("TERMINATE SIGNAL -- SIGNING OFF", 0);
215     } else {
216     putlog(LOG_MISC, "*", "RECEIVED TERMINATE SIGNAL (IGNORING)");
217     }
218     }
219    
220     static void got_quit(int z)
221     {
222 stdarg 1.85 check_bind_event("sigquit");
223 segfault 1.1 putlog(LOG_MISC, "*", "RECEIVED QUIT SIGNAL (IGNORING)");
224     return;
225     }
226    
227     static void got_hup(int z)
228     {
229     write_userfile(-1);
230 stdarg 1.85 check_bind_event("sighup");
231 segfault 1.1 if (die_on_sighup) {
232     fatal("HANGUP SIGNAL -- SIGNING OFF", 0);
233     } else
234     putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
235     do_restart = -2;
236     return;
237     }
238    
239 fabian 1.27 /* A call to resolver (gethostbyname, etc) timed out
240     */
241 segfault 1.1 static void got_alarm(int z)
242     {
243     longjmp(alarmret, 1);
244 fabian 1.27
245     /* -Never reached- */
246 segfault 1.1 }
247    
248 guppy 1.101 /* Got ILL signal
249 fabian 1.27 */
250 segfault 1.1 static void got_ill(int z)
251     {
252 stdarg 1.85 check_bind_event("sigill");
253 fabian 1.10 }
254    
255 segfault 1.1 static void do_arg(char *s)
256     {
257 guppy 1.49 char x[1024], *z = x;
258 segfault 1.1 int i;
259    
260     if (s[0] == '-')
261     for (i = 1; i < strlen(s); i++) {
262 guppy 1.49 switch (s[i]) {
263     case 'n':
264 segfault 1.1 backgrd = 0;
265 guppy 1.49 break;
266     case 'c':
267 segfault 1.1 con_chan = 1;
268     term_z = 0;
269 guppy 1.49 break;
270     case 't':
271 segfault 1.1 con_chan = 0;
272     term_z = 1;
273 guppy 1.49 break;
274     case 'm':
275 segfault 1.1 make_userfile = 1;
276 guppy 1.49 break;
277     case 'v':
278     strncpyz(x, egg_version, sizeof x);
279 segfault 1.1 newsplit(&z);
280     newsplit(&z);
281     printf("%s\n", version);
282     if (z[0])
283     printf(" (patches: %s)\n", z);
284 fabian 1.43 bg_send_quit(BG_ABORT);
285 segfault 1.1 exit(0);
286 guppy 1.49 break; /* this should never be reached */
287     case 'h':
288 segfault 1.1 printf("\n%s\n\n", version);
289 ite 1.73 printf(_("Command line arguments:\n\
290     -h help\n\
291     -v print version and exit\n\
292     -n don't go into the background\n\
293     -c (with -n) display channel stats every 10 seconds\n\
294     -t (with -n) use terminal to simulate dcc-chat\n\
295     -m userfile creation mode\n\
296     optional config filename (default 'eggdrop.conf')\n"));
297 segfault 1.1 printf("\n");
298 fabian 1.43 bg_send_quit(BG_ABORT);
299 segfault 1.1 exit(0);
300 guppy 1.49 break; /* this should never be reached */
301 segfault 1.1 }
302     } else
303 guppy 1.49 strncpyz(configfile, s, sizeof configfile);
304 segfault 1.1 }
305    
306 fabian 1.44 void backup_userfile(void)
307 segfault 1.1 {
308 guppy 1.49 char s[125];
309 segfault 1.1
310 ite 1.73 putlog(LOG_MISC, "*", _("Backing up user file..."));
311 tothwolf 1.91 snprintf(s, sizeof s, "%s~bak", userfile);
312 segfault 1.1 copyfile(userfile, s);
313     }
314    
315 fabian 1.27 /* Timer info */
316     static int lastmin = 99;
317     static time_t then;
318     static struct tm nowtm;
319 segfault 1.1
320 fabian 1.34 /* Called once a second.
321 fabian 1.27 */
322 segfault 1.1 static void core_secondly()
323     {
324     static int cnt = 0;
325     int miltime;
326    
327 stdarg 1.82 call_hook(HOOK_SECONDLY); /* Will be removed later */
328 segfault 1.1 cnt++;
329 fabian 1.27 if (cnt >= 10) { /* Every 10 seconds */
330 segfault 1.1 cnt = 0;
331     check_expired_dcc();
332     if (con_chan && !backgrd) {
333     dprintf(DP_STDOUT, "\033[2J\033[1;1H");
334     tell_verbose_status(DP_STDOUT);
335     do_module_report(DP_STDOUT, 0, "server");
336     do_module_report(DP_STDOUT, 0, "channels");
337     }
338     }
339 tothwolf 1.79 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
340 fabian 1.17 if (nowtm.tm_min != lastmin) {
341 segfault 1.1 int i = 0;
342    
343 fabian 1.27 /* Once a minute */
344 segfault 1.1 lastmin = (lastmin + 1) % 60;
345     call_hook(HOOK_MINUTELY);
346     check_expired_ignores();
347 fabian 1.27 autolink_cycle(NULL); /* Attempt autolinks */
348     /* In case for some reason more than 1 min has passed: */
349 fabian 1.17 while (nowtm.tm_min != lastmin) {
350 fabian 1.27 /* Timer drift, dammit */
351 fabian 1.17 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
352 segfault 1.1 i++;
353     lastmin = (lastmin + 1) % 60;
354     call_hook(HOOK_MINUTELY);
355     }
356     if (i > 1)
357     putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
358 fabian 1.17 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
359     if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
360 segfault 1.1 call_hook(HOOK_5MINUTELY);
361 guppy 1.49 if (!miltime) { /* At midnight */
362     char s[25];
363 segfault 1.1
364 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
365 fabian 1.4 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
366 guppy 1.69 call_hook(HOOK_BACKUP);
367 stdarg 1.90 call_hook(HOOK_DAILY);
368 segfault 1.1 }
369     }
370 fabian 1.17 if (nowtm.tm_min == notify_users_at)
371 segfault 1.1 call_hook(HOOK_HOURLY);
372     }
373     }
374    
375     static void core_minutely()
376     {
377 stdarg 1.85 check_bind_time(&nowtm);
378 segfault 1.1 }
379    
380     static void core_hourly()
381     {
382     write_userfile(-1);
383     }
384    
385     static void event_rehash()
386     {
387 stdarg 1.85 check_bind_event("rehash");
388 segfault 1.1 }
389    
390     static void event_prerehash()
391     {
392 stdarg 1.85 check_bind_event("prerehash");
393 segfault 1.1 }
394    
395     static void event_save()
396     {
397 stdarg 1.85 check_bind_event("save");
398 segfault 1.1 }
399    
400     static void event_logfile()
401     {
402 stdarg 1.85 check_bind_event("logfile");
403 segfault 1.1 }
404    
405 fabian 1.13 static void event_resettraffic()
406     {
407     otraffic_irc += otraffic_irc_today;
408     itraffic_irc += itraffic_irc_today;
409     otraffic_bn += otraffic_bn_today;
410     itraffic_bn += itraffic_bn_today;
411     otraffic_dcc += otraffic_dcc_today;
412     itraffic_dcc += itraffic_dcc_today;
413     otraffic_unknown += otraffic_unknown_today;
414     itraffic_unknown += itraffic_unknown_today;
415     otraffic_trans += otraffic_trans_today;
416     itraffic_trans += itraffic_trans_today;
417     otraffic_irc_today = otraffic_bn_today = 0;
418     otraffic_dcc_today = otraffic_unknown_today = 0;
419     itraffic_irc_today = itraffic_bn_today = 0;
420     itraffic_dcc_today = itraffic_unknown_today = 0;
421 fabian 1.18 itraffic_trans_today = otraffic_trans_today = 0;
422 fabian 1.13 }
423    
424 guppy 1.61 static void event_loaded()
425     {
426 stdarg 1.85 check_bind_event("loaded");
427 guppy 1.61 }
428    
429 segfault 1.1 void kill_tcl();
430     extern module_entry *module_list;
431     void restart_chons();
432    
433 tothwolf 1.97 int init_userent(), init_net(),
434 tothwolf 1.79 init_modules(), init_tcl(int, char **);
435 stdarg 1.89 void timer_init();
436 stdarg 1.90 void logfile_init();
437 stdarg 1.78 void botnet_init();
438 stdarg 1.88 void dns_init();
439 stdarg 1.83 void script_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 segfault 1.1 now = time(NULL);
544     chanset = NULL;
545 tothwolf 1.79 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
546 fabian 1.17 lastmin = nowtm.tm_min;
547 poptix 1.63 srandom(now % (getpid() + getppid()));
548 segfault 1.1 if (argc > 1)
549     for (i = 1; i < argc; i++)
550     do_arg(argv[i]);
551     printf("\n%s\n", version);
552 guppy 1.93 printf(" *** WARNING: Do NOT run this DEVELOPMENT version for any purpose other than testing.\n\n");
553 guppy 1.53
554     /* Don't allow eggdrop to run as root */
555     if (((int) getuid() == 0) || ((int) geteuid() == 0))
556 ite 1.76 fatal(_("ERROR: Eggdrop will not run as root!"), 0);
557 guppy 1.53
558 stdarg 1.83 script_init();
559 stdarg 1.98 binds_init();
560     init_modules();
561 stdarg 1.90 logfile_init();
562 stdarg 1.89 timer_init();
563 stdarg 1.88 dns_init();
564 stdarg 1.85 core_binds_init();
565 stdarg 1.94 dcc_init();
566 segfault 1.1 init_userent();
567 stdarg 1.78 botnet_init();
568 segfault 1.1 init_net();
569 stdarg 1.80
570 fabian 1.43 if (backgrd)
571     bg_prepare_split();
572 stdarg 1.80
573 fabian 1.8 init_tcl(argc, argv);
574 stdarg 1.80
575 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
576 segfault 1.1 strcpy(&s[11], &s[20]);
577     putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
578     chanprog();
579 guppy 1.49 if (!encrypt_pass) {
580 ite 1.73 printf(_("You have installed modules but have not selected an encryption\n\
581     module, please consult the default config file for info.\n"));
582 fabian 1.43 bg_send_quit(BG_ABORT);
583 segfault 1.1 exit(1);
584     }
585     i = 0;
586     for (chan = chanset; chan; chan = chan->next)
587     i++;
588 fabian 1.4 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
589 segfault 1.1 botnetnick, i, count_users(userlist));
590     cache_miss = 0;
591     cache_hit = 0;
592 guppy 1.92
593     if (!pid_file[0])
594     snprintf(pid_file, sizeof pid_file, "pid.%s", botnetnick);
595 fabian 1.27
596     /* Check for pre-existing eggdrop! */
597 segfault 1.1 f = fopen(pid_file, "r");
598     if (f != NULL) {
599     fgets(s, 10, f);
600     xx = atoi(s);
601 fabian 1.27 kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
602     is used */
603 segfault 1.1 if (errno != ESRCH) {
604 guppy 1.103 printf(_("I detect %s already running from this directory.\n"), botnetnick);
605 ite 1.73 printf(_("If this is incorrect, erase the %s\n"), pid_file);
606 fabian 1.43 bg_send_quit(BG_ABORT);
607 segfault 1.1 exit(1);
608     }
609     }
610 fabian 1.27
611     /* Move into background? */
612 segfault 1.1 if (backgrd) {
613 fabian 1.38 #ifndef CYGWIN_HACKS
614 fabian 1.43 bg_do_split();
615 fabian 1.38 } else { /* !backgrd */
616 fabian 1.5 #endif
617 fabian 1.38 xx = getpid();
618     if (xx != 0) {
619     FILE *fp;
620    
621     /* Write pid to file */
622     unlink(pid_file);
623     fp = fopen(pid_file, "w");
624     if (fp != NULL) {
625     fprintf(fp, "%u\n", xx);
626     if (fflush(fp)) {
627     /* Let the bot live since this doesn't appear to be a botchk */
628 ite 1.73 printf(_("* Warning! Could not write %s file!\n"), pid_file);
629 fabian 1.38 fclose(fp);
630     unlink(pid_file);
631     } else
632     fclose(fp);
633 fabian 1.27 } else
634 ite 1.73 printf(_("* Warning! Could not write %s file!\n"), pid_file);
635 fabian 1.38 #ifdef CYGWIN_HACKS
636 guppy 1.68 printf("Launched into the background (pid: %d)\n\n", xx);
637 fabian 1.38 #endif
638     }
639 segfault 1.1 }
640 fabian 1.38
641     use_stderr = 0; /* Stop writing to stderr now */
642 segfault 1.1 if (backgrd) {
643 fabian 1.27 /* Ok, try to disassociate from controlling terminal (finger cross) */
644 fabian 1.5 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
645 segfault 1.1 setpgid(0, 0);
646     #endif
647 fabian 1.38 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
648 segfault 1.1 freopen("/dev/null", "r", stdin);
649     freopen("/dev/null", "w", stdout);
650     freopen("/dev/null", "w", stderr);
651 poptix 1.62 #ifdef CYGWIN_HACKS
652     FreeConsole();
653     #endif
654 segfault 1.1 }
655 fabian 1.27
656     /* Terminal emulating dcc chat */
657 fabian 1.42 if (!backgrd && term_z) {
658 segfault 1.1 int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
659    
660 drummer 1.71 dcc[n].addr[0] = '\0';
661 segfault 1.1 dcc[n].sock = STDOUT;
662     dcc[n].timeval = now;
663     dcc[n].u.chat->con_flags = conmask;
664     dcc[n].u.chat->strip_flags = STRIP_ALL;
665     dcc[n].status = STAT_ECHO;
666     strcpy(dcc[n].nick, "HQ");
667     strcpy(dcc[n].host, "llama@console");
668     dcc[n].user = get_user_by_handle(userlist, "HQ");
669 fabian 1.27 /* Make sure there's an innocuous HQ user if needed */
670 segfault 1.1 if (!dcc[n].user) {
671 fabian 1.24 userlist = adduser(userlist, "HQ", "none", "-", USER_PARTY);
672 segfault 1.1 dcc[n].user = get_user_by_handle(userlist, "HQ");
673     }
674 fabian 1.27 setsock(STDOUT, 0); /* Entry in net table */
675 segfault 1.1 dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
676     dcc_chatter(n);
677     }
678 fabian 1.27
679 segfault 1.1 then = now;
680     online_since = now;
681 fabian 1.27 autolink_cycle(NULL); /* Hurry and connect to tandem bots */
682 segfault 1.1 add_help_reference("cmds1.help");
683     add_help_reference("cmds2.help");
684     add_help_reference("core.help");
685 stdarg 1.82 howlong.sec = 1;
686     howlong.usec = 0;
687     timer_create_repeater(&howlong, (Function) core_secondly);
688 fabian 1.22 add_hook(HOOK_MINUTELY, (Function) core_minutely);
689     add_hook(HOOK_HOURLY, (Function) core_hourly);
690     add_hook(HOOK_REHASH, (Function) event_rehash);
691     add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
692     add_hook(HOOK_USERFILE, (Function) event_save);
693 guppy 1.69 add_hook(HOOK_BACKUP, (Function) backup_userfile);
694 fabian 1.22 add_hook(HOOK_DAILY, (Function) event_logfile);
695     add_hook(HOOK_DAILY, (Function) event_resettraffic);
696 guppy 1.61 add_hook(HOOK_LOADED, (Function) event_loaded);
697    
698     call_hook(HOOK_LOADED);
699 segfault 1.1
700     debug0("main: entering loop");
701     while (1) {
702     int socket_cleanup = 0;
703    
704 fabian 1.43 #if !defined(HAVE_PRE7_5_TCL)
705 fabian 1.27 /* Process a single tcl event */
706 segfault 1.1 Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
707 fabian 1.5 #endif
708 fabian 1.45
709 fabian 1.27 /* Lets move some of this here, reducing the numer of actual
710     * calls to periodic_timers
711     */
712 segfault 1.1 now = time(NULL);
713 fabian 1.27 random(); /* Woop, lets really jumble things */
714 stdarg 1.82 timer_run();
715 fabian 1.27 if (now != then) { /* Once a second */
716 stdarg 1.82 /* call_hook(HOOK_SECONDLY); */
717 segfault 1.1 then = now;
718     }
719 fabian 1.45
720     /* Only do this every so often. */
721 segfault 1.1 if (!socket_cleanup) {
722 fabian 1.45 socket_cleanup = 5;
723    
724     /* Remove dead dcc entries. */
725 fabian 1.16 dcc_remove_lost();
726 fabian 1.45
727     /* Check for server or dcc activity. */
728 segfault 1.1 dequeue_sockets();
729     } else
730     socket_cleanup--;
731 fabian 1.45
732     /* Free unused structures. */
733 stdarg 1.100 /* garbage_collect(); */
734 fabian 1.45
735 segfault 1.1 xx = sockgets(buf, &i);
736 fabian 1.27 if (xx >= 0) { /* Non-error */
737 segfault 1.1 int idx;
738    
739     for (idx = 0; idx < dcc_total; idx++)
740     if (dcc[idx].sock == xx) {
741 fabian 1.13 if (dcc[idx].type && dcc[idx].type->activity) {
742 fabian 1.27 /* Traffic stats */
743     if (dcc[idx].type->name) {
744     if (!strncmp(dcc[idx].type->name, "BOT", 3))
745     itraffic_bn_today += strlen(buf) + 1;
746     else if (!strcmp(dcc[idx].type->name, "SERVER"))
747     itraffic_irc_today += strlen(buf) + 1;
748     else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
749     itraffic_dcc_today += strlen(buf) + 1;
750     else if (!strncmp(dcc[idx].type->name, "FILES", 5))
751     itraffic_dcc_today += strlen(buf) + 1;
752     else if (!strcmp(dcc[idx].type->name, "SEND"))
753     itraffic_trans_today += strlen(buf) + 1;
754     else if (!strncmp(dcc[idx].type->name, "GET", 3))
755     itraffic_trans_today += strlen(buf) + 1;
756     else
757     itraffic_unknown_today += strlen(buf) + 1;
758     }
759 guppy 1.56 dcc[idx].type->activity(idx, buf, i);
760 fabian 1.13 } else
761 segfault 1.1 putlog(LOG_MISC, "*",
762     "!!! untrapped dcc activity: type %s, sock %d",
763     dcc[idx].type->name, dcc[idx].sock);
764     break;
765     }
766     } else if (xx == -1) { /* EOF from someone */
767     int idx;
768    
769 fabian 1.45 if (i == STDOUT && !backgrd)
770 segfault 1.1 fatal("END OF FILE ON TERMINAL", 0);
771     for (idx = 0; idx < dcc_total; idx++)
772     if (dcc[idx].sock == i) {
773     if (dcc[idx].type && dcc[idx].type->eof)
774     dcc[idx].type->eof(idx);
775     else {
776     putlog(LOG_MISC, "*",
777     "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
778 fabian 1.2 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
779     killsock(i);
780 segfault 1.1 lostdcc(idx);
781     }
782     idx = dcc_total + 1;
783     }
784     if (idx == dcc_total) {
785     putlog(LOG_MISC, "*",
786 fabian 1.2 "(@) EOF socket %d, not a dcc socket, not anything.", i);
787     close(i);
788     killsock(i);
789 segfault 1.1 }
790 fabian 1.45 } else if (xx == -2 && errno != EINTR) { /* select() error */
791 segfault 1.1 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
792     for (i = 0; i < dcc_total; i++) {
793     if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
794     putlog(LOG_MISC, "*",
795     "DCC socket %d (type %d, name '%s') expired -- pfft",
796     dcc[i].sock, dcc[i].type, dcc[i].nick);
797     killsock(dcc[i].sock);
798     lostdcc(i);
799     i--;
800     }
801     }
802 fabian 1.45 } else if (xx == -3) {
803 segfault 1.1 call_hook(HOOK_IDLE);
804 fabian 1.27 socket_cleanup = 0; /* If we've been idle, cleanup & flush */
805 segfault 1.1 }
806 fabian 1.27
807 segfault 1.1 if (do_restart) {
808     if (do_restart == -2)
809     rehash();
810     else {
811 fabian 1.27 /* Unload as many modules as possible */
812 segfault 1.1 int f = 1;
813     module_entry *p;
814     Function x;
815     char xx[256];
816 guppy 1.59
817     /* oops, I guess we should call this event before tcl is restarted */
818 stdarg 1.85 check_bind_event("prerestart");
819 segfault 1.1
820     while (f) {
821     f = 0;
822     for (p = module_list; p != NULL; p = p->next) {
823     dependancy *d = dependancy_list;
824     int ok = 1;
825    
826     while (ok && d) {
827     if (d->needed == p)
828     ok = 0;
829     d = d->next;
830     }
831     if (ok) {
832     strcpy(xx, p->name);
833 guppy 1.103 if (module_unload(xx, botnetnick) == NULL) {
834 segfault 1.1 f = 1;
835     break;
836     }
837     }
838     }
839     }
840     p = module_list;
841     if (p && p->next && p->next->next)
842 fabian 1.45 /* Should be only 2 modules now - blowfish (or some other
843     encryption module) and eggdrop. */
844 ite 1.73 putlog(LOG_MISC, "*", _("Stagnant module; there WILL be memory leaks!"));
845 segfault 1.1 flushlogs();
846     kill_tcl();
847 stdarg 1.87 timer_destroy_all(); /* Destroy all timers. */
848 fabian 1.8 init_tcl(argc, argv);
849 fabian 1.30 /* We expect the encryption module as the current module pointed
850     * to by `module_list'.
851     */
852 segfault 1.1 x = p->funcs[MODCALL_START];
853 fabian 1.30 /* `NULL' indicates that we just recently restarted. The module
854     * is expected to re-initialise as needed.
855     */
856     x(NULL);
857 segfault 1.1 rehash();
858     restart_chons();
859 guppy 1.61 call_hook(HOOK_LOADED);
860 segfault 1.1 }
861     do_restart = 0;
862     }
863     }
864     }

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