/[cvs]/eggdrop1.9/src/main.c
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Revision 1.104 - (hide annotations) (download) (as text)
Mon Jan 14 02:23:27 2002 UTC (17 years, 7 months ago) by ite
Branch: MAIN
Changes since 1.103: +3 -5 lines
File MIME type: text/x-chdr
* Merged bits of tothwolf cleaunps from his alpha patch.
* Removed some unneeded externs in some files.

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 1.104 * $Id: main.c,v 1.103 2001/12/29 21:21:18 guppy Exp $
8 segfault 1.1 */
9 guppy 1.56 /*
10     * Copyright (C) 1997 Robey Pointer
11     * Copyright (C) 1999, 2000, 2001 Eggheads Development Team
12     *
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 fabian 1.38
58 ite 1.96 #include "lib/adns/adns.h"
59 drummer 1.71
60 poptix 1.62 #ifdef CYGWIN_HACKS
61     #include <windows.h>
62     #endif
63    
64 segfault 1.1 #ifndef _POSIX_SOURCE
65 fabian 1.27 /* Solaris needs this */
66 segfault 1.1 #define _POSIX_SOURCE 1
67     #endif
68    
69 ite 1.104 extern char userfile[], botnetnick[];
70     extern int dcc_total, conmask, cache_hit, cache_miss;
71 fabian 1.27 extern struct dcc_t *dcc;
72     extern struct userrec *userlist;
73     extern struct chanset_t *chanset;
74     extern jmp_buf alarmret;
75    
76 segfault 1.1
77 guppy 1.56 /*
78 segfault 1.1 * Please use the PATCH macro instead of directly altering the version
79     * string from now on (it makes it much easier to maintain patches).
80     * Also please read the README file regarding your rights to distribute
81     * modified versions of this bot.
82     */
83    
84 ite 1.76 char egg_version[1024] = VERSION;
85     int egg_numver = VERSION_NUM;
86 segfault 1.1
87 fabian 1.27 char notify_new[121] = ""; /* Person to send a note to for new users */
88     int default_flags = 0; /* Default user flags and */
89     int default_uflags = 0; /* Default userdefinied flags for people
90     who say 'hello' or for .adduser */
91    
92     int backgrd = 1; /* Run in the background? */
93     int con_chan = 0; /* Foreground: constantly display channel
94     stats? */
95     int term_z = 0; /* Foreground: use the terminal as a party
96     line? */
97     char configfile[121] = "eggdrop.conf"; /* Name of the config file */
98     char helpdir[121]; /* Directory of help files (if used) */
99     char textdir[121] = ""; /* Directory for text files that get dumped */
100     time_t online_since; /* Unix-time that the bot loaded up */
101     int make_userfile = 0; /* Using bot in make-userfile mode? (first
102     user to 'hello' becomes master) */
103     char owner[121] = ""; /* Permanent owner(s) of the bot */
104 guppy 1.92 char pid_file[120]; /* Name of the file for the pid to be
105 fabian 1.27 stored in */
106     int save_users_at = 0; /* How many minutes past the hour to
107     save the userfile? */
108     int notify_users_at = 0; /* How many minutes past the hour to
109     notify users of notes? */
110     char version[81]; /* Version info (long form) */
111     char ver[41]; /* Version info (short form) */
112     char egg_xtra[2048]; /* Patch info */
113     int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
114     int do_restart = 0; /* .restart has been called, restart asap */
115     int die_on_sighup = 0; /* die if bot receives SIGHUP */
116 guppy 1.52 int die_on_sigterm = 1; /* die if bot receives SIGTERM */
117 fabian 1.27 int resolve_timeout = 15; /* hostname/address lookup timeout */
118 guppy 1.72 char quit_msg[1024]; /* quit message */
119 fabian 1.27 time_t now; /* duh, now :) */
120    
121     /* Traffic stats
122     */
123 fabian 1.33 unsigned long otraffic_irc = 0;
124     unsigned long otraffic_irc_today = 0;
125     unsigned long otraffic_bn = 0;
126     unsigned long otraffic_bn_today = 0;
127     unsigned long otraffic_dcc = 0;
128     unsigned long otraffic_dcc_today = 0;
129     unsigned long otraffic_filesys = 0;
130     unsigned long otraffic_filesys_today = 0;
131     unsigned long otraffic_trans = 0;
132     unsigned long otraffic_trans_today = 0;
133     unsigned long otraffic_unknown = 0;
134     unsigned long otraffic_unknown_today = 0;
135     unsigned long itraffic_irc = 0;
136     unsigned long itraffic_irc_today = 0;
137     unsigned long itraffic_bn = 0;
138     unsigned long itraffic_bn_today = 0;
139     unsigned long itraffic_dcc = 0;
140     unsigned long itraffic_dcc_today = 0;
141     unsigned long itraffic_trans = 0;
142     unsigned long itraffic_trans_today = 0;
143     unsigned long itraffic_unknown = 0;
144     unsigned long itraffic_unknown_today = 0;
145 segfault 1.1
146 fabian 1.44 void fatal(const char *s, int recoverable)
147 segfault 1.1 {
148     int i;
149    
150     putlog(LOG_MISC, "*", "* %s", s);
151     flushlogs();
152     for (i = 0; i < dcc_total; i++)
153 fabian 1.19 if (dcc[i].sock >= 0)
154 fabian 1.15 killsock(dcc[i].sock);
155 segfault 1.1 unlink(pid_file);
156 fabian 1.43 if (!recoverable) {
157     bg_send_quit(BG_ABORT);
158 segfault 1.1 exit(1);
159 fabian 1.43 }
160 segfault 1.1 }
161    
162     static void check_expired_dcc()
163     {
164     int i;
165    
166     for (i = 0; i < dcc_total; i++)
167     if (dcc[i].type && dcc[i].type->timeout_val &&
168     ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
169     if (dcc[i].type->timeout)
170     dcc[i].type->timeout(i);
171     else if (dcc[i].type->eof)
172     dcc[i].type->eof(i);
173     else
174     continue;
175 fabian 1.27 /* Only timeout 1 socket per cycle, too risky for more */
176 segfault 1.1 return;
177     }
178     }
179    
180     static void got_bus(int z)
181     {
182     fatal("BUS ERROR -- CRASHING!", 1);
183     #ifdef SA_RESETHAND
184     kill(getpid(), SIGBUS);
185     #else
186 fabian 1.43 bg_send_quit(BG_ABORT);
187 segfault 1.1 exit(1);
188     #endif
189     }
190    
191     static void got_segv(int z)
192     {
193     fatal("SEGMENT VIOLATION -- CRASHING!", 1);
194     #ifdef SA_RESETHAND
195     kill(getpid(), SIGSEGV);
196     #else
197 fabian 1.43 bg_send_quit(BG_ABORT);
198 segfault 1.1 exit(1);
199     #endif
200     }
201    
202     static void got_fpe(int z)
203     {
204     fatal("FLOATING POINT ERROR -- CRASHING!", 0);
205     }
206    
207     static void got_term(int z)
208     {
209     write_userfile(-1);
210 stdarg 1.85 check_bind_event("sigterm");
211 segfault 1.1 if (die_on_sigterm) {
212     fatal("TERMINATE SIGNAL -- SIGNING OFF", 0);
213     } else {
214     putlog(LOG_MISC, "*", "RECEIVED TERMINATE SIGNAL (IGNORING)");
215     }
216     }
217    
218     static void got_quit(int z)
219     {
220 stdarg 1.85 check_bind_event("sigquit");
221 segfault 1.1 putlog(LOG_MISC, "*", "RECEIVED QUIT SIGNAL (IGNORING)");
222     return;
223     }
224    
225     static void got_hup(int z)
226     {
227     write_userfile(-1);
228 stdarg 1.85 check_bind_event("sighup");
229 segfault 1.1 if (die_on_sighup) {
230     fatal("HANGUP SIGNAL -- SIGNING OFF", 0);
231     } else
232     putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
233     do_restart = -2;
234     return;
235     }
236    
237 fabian 1.27 /* A call to resolver (gethostbyname, etc) timed out
238     */
239 segfault 1.1 static void got_alarm(int z)
240     {
241     longjmp(alarmret, 1);
242 fabian 1.27
243     /* -Never reached- */
244 segfault 1.1 }
245    
246 guppy 1.101 /* Got ILL signal
247 fabian 1.27 */
248 segfault 1.1 static void got_ill(int z)
249     {
250 stdarg 1.85 check_bind_event("sigill");
251 fabian 1.10 }
252    
253 segfault 1.1 static void do_arg(char *s)
254     {
255 guppy 1.49 char x[1024], *z = x;
256 segfault 1.1 int i;
257    
258     if (s[0] == '-')
259     for (i = 1; i < strlen(s); i++) {
260 guppy 1.49 switch (s[i]) {
261     case 'n':
262 segfault 1.1 backgrd = 0;
263 guppy 1.49 break;
264     case 'c':
265 segfault 1.1 con_chan = 1;
266     term_z = 0;
267 guppy 1.49 break;
268     case 't':
269 segfault 1.1 con_chan = 0;
270     term_z = 1;
271 guppy 1.49 break;
272     case 'm':
273 segfault 1.1 make_userfile = 1;
274 guppy 1.49 break;
275     case 'v':
276     strncpyz(x, egg_version, sizeof x);
277 segfault 1.1 newsplit(&z);
278     newsplit(&z);
279     printf("%s\n", version);
280     if (z[0])
281     printf(" (patches: %s)\n", z);
282 fabian 1.43 bg_send_quit(BG_ABORT);
283 segfault 1.1 exit(0);
284 guppy 1.49 break; /* this should never be reached */
285     case 'h':
286 segfault 1.1 printf("\n%s\n\n", version);
287 ite 1.73 printf(_("Command line arguments:\n\
288     -h help\n\
289     -v print version and exit\n\
290     -n don't go into the background\n\
291     -c (with -n) display channel stats every 10 seconds\n\
292     -t (with -n) use terminal to simulate dcc-chat\n\
293     -m userfile creation mode\n\
294     optional config filename (default 'eggdrop.conf')\n"));
295 segfault 1.1 printf("\n");
296 fabian 1.43 bg_send_quit(BG_ABORT);
297 segfault 1.1 exit(0);
298 guppy 1.49 break; /* this should never be reached */
299 segfault 1.1 }
300     } else
301 guppy 1.49 strncpyz(configfile, s, sizeof configfile);
302 segfault 1.1 }
303    
304 fabian 1.44 void backup_userfile(void)
305 segfault 1.1 {
306 guppy 1.49 char s[125];
307 segfault 1.1
308 ite 1.73 putlog(LOG_MISC, "*", _("Backing up user file..."));
309 tothwolf 1.91 snprintf(s, sizeof s, "%s~bak", userfile);
310 segfault 1.1 copyfile(userfile, s);
311     }
312    
313 fabian 1.27 /* Timer info */
314     static int lastmin = 99;
315     static time_t then;
316     static struct tm nowtm;
317 segfault 1.1
318 fabian 1.34 /* Called once a second.
319 fabian 1.27 */
320 segfault 1.1 static void core_secondly()
321     {
322     static int cnt = 0;
323     int miltime;
324    
325 stdarg 1.82 call_hook(HOOK_SECONDLY); /* Will be removed later */
326 segfault 1.1 cnt++;
327 fabian 1.27 if (cnt >= 10) { /* Every 10 seconds */
328 segfault 1.1 cnt = 0;
329     check_expired_dcc();
330     if (con_chan && !backgrd) {
331     dprintf(DP_STDOUT, "\033[2J\033[1;1H");
332     tell_verbose_status(DP_STDOUT);
333     do_module_report(DP_STDOUT, 0, "server");
334     do_module_report(DP_STDOUT, 0, "channels");
335     }
336     }
337 tothwolf 1.79 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
338 fabian 1.17 if (nowtm.tm_min != lastmin) {
339 segfault 1.1 int i = 0;
340    
341 fabian 1.27 /* Once a minute */
342 segfault 1.1 lastmin = (lastmin + 1) % 60;
343     call_hook(HOOK_MINUTELY);
344     check_expired_ignores();
345 fabian 1.27 autolink_cycle(NULL); /* Attempt autolinks */
346     /* In case for some reason more than 1 min has passed: */
347 fabian 1.17 while (nowtm.tm_min != lastmin) {
348 fabian 1.27 /* Timer drift, dammit */
349 fabian 1.17 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
350 segfault 1.1 i++;
351     lastmin = (lastmin + 1) % 60;
352     call_hook(HOOK_MINUTELY);
353     }
354     if (i > 1)
355     putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
356 fabian 1.17 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
357     if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
358 segfault 1.1 call_hook(HOOK_5MINUTELY);
359 guppy 1.49 if (!miltime) { /* At midnight */
360     char s[25];
361 segfault 1.1
362 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
363 fabian 1.4 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
364 guppy 1.69 call_hook(HOOK_BACKUP);
365 stdarg 1.90 call_hook(HOOK_DAILY);
366 segfault 1.1 }
367     }
368 fabian 1.17 if (nowtm.tm_min == notify_users_at)
369 segfault 1.1 call_hook(HOOK_HOURLY);
370     }
371     }
372    
373     static void core_minutely()
374     {
375 stdarg 1.85 check_bind_time(&nowtm);
376 segfault 1.1 }
377    
378     static void core_hourly()
379     {
380     write_userfile(-1);
381     }
382    
383     static void event_rehash()
384     {
385 stdarg 1.85 check_bind_event("rehash");
386 segfault 1.1 }
387    
388     static void event_prerehash()
389     {
390 stdarg 1.85 check_bind_event("prerehash");
391 segfault 1.1 }
392    
393     static void event_save()
394     {
395 stdarg 1.85 check_bind_event("save");
396 segfault 1.1 }
397    
398     static void event_logfile()
399     {
400 stdarg 1.85 check_bind_event("logfile");
401 segfault 1.1 }
402    
403 fabian 1.13 static void event_resettraffic()
404     {
405     otraffic_irc += otraffic_irc_today;
406     itraffic_irc += itraffic_irc_today;
407     otraffic_bn += otraffic_bn_today;
408     itraffic_bn += itraffic_bn_today;
409     otraffic_dcc += otraffic_dcc_today;
410     itraffic_dcc += itraffic_dcc_today;
411     otraffic_unknown += otraffic_unknown_today;
412     itraffic_unknown += itraffic_unknown_today;
413     otraffic_trans += otraffic_trans_today;
414     itraffic_trans += itraffic_trans_today;
415     otraffic_irc_today = otraffic_bn_today = 0;
416     otraffic_dcc_today = otraffic_unknown_today = 0;
417     itraffic_irc_today = itraffic_bn_today = 0;
418     itraffic_dcc_today = itraffic_unknown_today = 0;
419 fabian 1.18 itraffic_trans_today = otraffic_trans_today = 0;
420 fabian 1.13 }
421    
422 guppy 1.61 static void event_loaded()
423     {
424 stdarg 1.85 check_bind_event("loaded");
425 guppy 1.61 }
426    
427 segfault 1.1 void kill_tcl();
428     extern module_entry *module_list;
429     void restart_chons();
430    
431 tothwolf 1.97 int init_userent(), init_net(),
432 tothwolf 1.79 init_modules(), init_tcl(int, char **);
433 stdarg 1.89 void timer_init();
434 stdarg 1.90 void logfile_init();
435 stdarg 1.78 void botnet_init();
436 stdarg 1.88 void dns_init();
437 stdarg 1.83 void script_init();
438 stdarg 1.85 void binds_init();
439 stdarg 1.94 void dcc_init();
440 fabian 1.11
441 fabian 1.44 void patch(const char *str)
442 fabian 1.11 {
443     char *p = strchr(egg_version, '+');
444    
445     if (!p)
446     p = &egg_version[strlen(egg_version)];
447     sprintf(p, "+%s", str);
448     egg_numver++;
449     sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
450     }
451 segfault 1.1
452 stdarg 1.100 /*
453 fabian 1.45 static inline void garbage_collect(void)
454     {
455     static u_8bit_t run_cnt = 0;
456    
457     if (run_cnt == 3)
458     garbage_collect_tclhash();
459     else
460     run_cnt++;
461     }
462 stdarg 1.100 */
463 fabian 1.45
464 segfault 1.1 int main(int argc, char **argv)
465     {
466     int xx, i;
467 guppy 1.49 char buf[520], s[25];
468 segfault 1.1 FILE *f;
469     struct sigaction sv;
470     struct chanset_t *chan;
471 stdarg 1.82 egg_timeval_t howlong;
472 segfault 1.1
473 tothwolf 1.81 #ifdef DEBUG
474 fabian 1.21 /* Make sure it can write core, if you make debug. Else it's pretty
475     * useless (dw)
476     */
477 fabian 1.15 {
478     #include <sys/resource.h>
479     struct rlimit cdlim;
480 fabian 1.21
481 fabian 1.15 cdlim.rlim_cur = RLIM_INFINITY;
482     cdlim.rlim_max = RLIM_INFINITY;
483 fabian 1.32 setrlimit(RLIMIT_CORE, &cdlim);
484 fabian 1.15 }
485     #endif
486 fabian 1.32
487 ite 1.99 #ifdef ENABLE_NLS
488 ite 1.76 setlocale(LC_MESSAGES, "");
489     bindtextdomain(PACKAGE, LOCALEDIR);
490     textdomain(PACKAGE);
491 ite 1.99 #endif
492 ite 1.76
493 segfault 1.1 #include "patch.h"
494 fabian 1.27 /* Version info! */
495 tothwolf 1.91 snprintf(ver, sizeof ver, "eggdrop v%s", egg_version);
496 tothwolf 1.102 snprintf(version, sizeof version, "Eggdrop v%s (C) 1997 Robey Pointer (C) 2001 Eggheads",
497 guppy 1.56 egg_version);
498 fabian 1.27 /* Now add on the patchlevel (for Tcl) */
499 fabian 1.2 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
500 segfault 1.1 strcat(egg_version, egg_xtra);
501     #ifdef STOP_UAC
502     {
503     int nvpair[2];
504    
505     nvpair[0] = SSIN_UACPROC;
506     nvpair[1] = UAC_NOPRINT;
507     setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
508     }
509     #endif
510 fabian 1.27
511     /* Set up error traps: */
512 segfault 1.1 sv.sa_handler = got_bus;
513     sigemptyset(&sv.sa_mask);
514     #ifdef SA_RESETHAND
515     sv.sa_flags = SA_RESETHAND;
516     #else
517     sv.sa_flags = 0;
518     #endif
519     sigaction(SIGBUS, &sv, NULL);
520     sv.sa_handler = got_segv;
521     sigaction(SIGSEGV, &sv, NULL);
522     #ifdef SA_RESETHAND
523     sv.sa_flags = 0;
524     #endif
525     sv.sa_handler = got_fpe;
526     sigaction(SIGFPE, &sv, NULL);
527     sv.sa_handler = got_term;
528     sigaction(SIGTERM, &sv, NULL);
529     sv.sa_handler = got_hup;
530     sigaction(SIGHUP, &sv, NULL);
531     sv.sa_handler = got_quit;
532     sigaction(SIGQUIT, &sv, NULL);
533     sv.sa_handler = SIG_IGN;
534     sigaction(SIGPIPE, &sv, NULL);
535     sv.sa_handler = got_ill;
536     sigaction(SIGILL, &sv, NULL);
537     sv.sa_handler = got_alarm;
538     sigaction(SIGALRM, &sv, NULL);
539 fabian 1.27
540     /* Initialize variables and stuff */
541 segfault 1.1 now = time(NULL);
542     chanset = NULL;
543 tothwolf 1.79 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
544 fabian 1.17 lastmin = nowtm.tm_min;
545 poptix 1.63 srandom(now % (getpid() + getppid()));
546 segfault 1.1 if (argc > 1)
547     for (i = 1; i < argc; i++)
548     do_arg(argv[i]);
549     printf("\n%s\n", version);
550 guppy 1.93 printf(" *** WARNING: Do NOT run this DEVELOPMENT version for any purpose other than testing.\n\n");
551 guppy 1.53
552     /* Don't allow eggdrop to run as root */
553     if (((int) getuid() == 0) || ((int) geteuid() == 0))
554 ite 1.76 fatal(_("ERROR: Eggdrop will not run as root!"), 0);
555 guppy 1.53
556 stdarg 1.83 script_init();
557 stdarg 1.98 binds_init();
558     init_modules();
559 stdarg 1.90 logfile_init();
560 stdarg 1.89 timer_init();
561 stdarg 1.88 dns_init();
562 stdarg 1.85 core_binds_init();
563 stdarg 1.94 dcc_init();
564 segfault 1.1 init_userent();
565 stdarg 1.78 botnet_init();
566 segfault 1.1 init_net();
567 stdarg 1.80
568 fabian 1.43 if (backgrd)
569     bg_prepare_split();
570 stdarg 1.80
571 fabian 1.8 init_tcl(argc, argv);
572 stdarg 1.80
573 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
574 segfault 1.1 strcpy(&s[11], &s[20]);
575     putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
576     chanprog();
577 guppy 1.49 if (!encrypt_pass) {
578 ite 1.73 printf(_("You have installed modules but have not selected an encryption\n\
579     module, please consult the default config file for info.\n"));
580 fabian 1.43 bg_send_quit(BG_ABORT);
581 segfault 1.1 exit(1);
582     }
583     i = 0;
584     for (chan = chanset; chan; chan = chan->next)
585     i++;
586 fabian 1.4 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
587 segfault 1.1 botnetnick, i, count_users(userlist));
588     cache_miss = 0;
589     cache_hit = 0;
590 guppy 1.92
591     if (!pid_file[0])
592     snprintf(pid_file, sizeof pid_file, "pid.%s", botnetnick);
593 fabian 1.27
594     /* Check for pre-existing eggdrop! */
595 segfault 1.1 f = fopen(pid_file, "r");
596     if (f != NULL) {
597     fgets(s, 10, f);
598     xx = atoi(s);
599 fabian 1.27 kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
600     is used */
601 segfault 1.1 if (errno != ESRCH) {
602 guppy 1.103 printf(_("I detect %s already running from this directory.\n"), botnetnick);
603 ite 1.73 printf(_("If this is incorrect, erase the %s\n"), pid_file);
604 fabian 1.43 bg_send_quit(BG_ABORT);
605 segfault 1.1 exit(1);
606     }
607     }
608 fabian 1.27
609     /* Move into background? */
610 segfault 1.1 if (backgrd) {
611 fabian 1.38 #ifndef CYGWIN_HACKS
612 fabian 1.43 bg_do_split();
613 fabian 1.38 } else { /* !backgrd */
614 fabian 1.5 #endif
615 fabian 1.38 xx = getpid();
616     if (xx != 0) {
617     FILE *fp;
618    
619     /* Write pid to file */
620     unlink(pid_file);
621     fp = fopen(pid_file, "w");
622     if (fp != NULL) {
623     fprintf(fp, "%u\n", xx);
624     if (fflush(fp)) {
625     /* Let the bot live since this doesn't appear to be a botchk */
626 ite 1.73 printf(_("* Warning! Could not write %s file!\n"), pid_file);
627 fabian 1.38 fclose(fp);
628     unlink(pid_file);
629     } else
630     fclose(fp);
631 fabian 1.27 } else
632 ite 1.73 printf(_("* Warning! Could not write %s file!\n"), pid_file);
633 fabian 1.38 #ifdef CYGWIN_HACKS
634 guppy 1.68 printf("Launched into the background (pid: %d)\n\n", xx);
635 fabian 1.38 #endif
636     }
637 segfault 1.1 }
638 fabian 1.38
639     use_stderr = 0; /* Stop writing to stderr now */
640 segfault 1.1 if (backgrd) {
641 fabian 1.27 /* Ok, try to disassociate from controlling terminal (finger cross) */
642 fabian 1.5 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
643 segfault 1.1 setpgid(0, 0);
644     #endif
645 fabian 1.38 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
646 segfault 1.1 freopen("/dev/null", "r", stdin);
647     freopen("/dev/null", "w", stdout);
648     freopen("/dev/null", "w", stderr);
649 poptix 1.62 #ifdef CYGWIN_HACKS
650     FreeConsole();
651     #endif
652 segfault 1.1 }
653 fabian 1.27
654     /* Terminal emulating dcc chat */
655 fabian 1.42 if (!backgrd && term_z) {
656 segfault 1.1 int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
657    
658 drummer 1.71 dcc[n].addr[0] = '\0';
659 segfault 1.1 dcc[n].sock = STDOUT;
660     dcc[n].timeval = now;
661     dcc[n].u.chat->con_flags = conmask;
662     dcc[n].u.chat->strip_flags = STRIP_ALL;
663     dcc[n].status = STAT_ECHO;
664     strcpy(dcc[n].nick, "HQ");
665     strcpy(dcc[n].host, "llama@console");
666     dcc[n].user = get_user_by_handle(userlist, "HQ");
667 fabian 1.27 /* Make sure there's an innocuous HQ user if needed */
668 segfault 1.1 if (!dcc[n].user) {
669 fabian 1.24 userlist = adduser(userlist, "HQ", "none", "-", USER_PARTY);
670 segfault 1.1 dcc[n].user = get_user_by_handle(userlist, "HQ");
671     }
672 fabian 1.27 setsock(STDOUT, 0); /* Entry in net table */
673 segfault 1.1 dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
674     dcc_chatter(n);
675     }
676 fabian 1.27
677 segfault 1.1 then = now;
678     online_since = now;
679 fabian 1.27 autolink_cycle(NULL); /* Hurry and connect to tandem bots */
680 segfault 1.1 add_help_reference("cmds1.help");
681     add_help_reference("cmds2.help");
682     add_help_reference("core.help");
683 stdarg 1.82 howlong.sec = 1;
684     howlong.usec = 0;
685     timer_create_repeater(&howlong, (Function) core_secondly);
686 fabian 1.22 add_hook(HOOK_MINUTELY, (Function) core_minutely);
687     add_hook(HOOK_HOURLY, (Function) core_hourly);
688     add_hook(HOOK_REHASH, (Function) event_rehash);
689     add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
690     add_hook(HOOK_USERFILE, (Function) event_save);
691 guppy 1.69 add_hook(HOOK_BACKUP, (Function) backup_userfile);
692 fabian 1.22 add_hook(HOOK_DAILY, (Function) event_logfile);
693     add_hook(HOOK_DAILY, (Function) event_resettraffic);
694 guppy 1.61 add_hook(HOOK_LOADED, (Function) event_loaded);
695    
696     call_hook(HOOK_LOADED);
697 segfault 1.1
698     debug0("main: entering loop");
699     while (1) {
700     int socket_cleanup = 0;
701    
702 fabian 1.43 #if !defined(HAVE_PRE7_5_TCL)
703 fabian 1.27 /* Process a single tcl event */
704 segfault 1.1 Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
705 fabian 1.5 #endif
706 fabian 1.45
707 fabian 1.27 /* Lets move some of this here, reducing the numer of actual
708     * calls to periodic_timers
709     */
710 segfault 1.1 now = time(NULL);
711 fabian 1.27 random(); /* Woop, lets really jumble things */
712 stdarg 1.82 timer_run();
713 fabian 1.27 if (now != then) { /* Once a second */
714 stdarg 1.82 /* call_hook(HOOK_SECONDLY); */
715 segfault 1.1 then = now;
716     }
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 fabian 1.27 if (xx >= 0) { /* Non-error */
735 segfault 1.1 int idx;
736    
737     for (idx = 0; idx < dcc_total; idx++)
738     if (dcc[idx].sock == xx) {
739 fabian 1.13 if (dcc[idx].type && dcc[idx].type->activity) {
740 fabian 1.27 /* Traffic stats */
741     if (dcc[idx].type->name) {
742     if (!strncmp(dcc[idx].type->name, "BOT", 3))
743     itraffic_bn_today += strlen(buf) + 1;
744     else if (!strcmp(dcc[idx].type->name, "SERVER"))
745     itraffic_irc_today += strlen(buf) + 1;
746     else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
747     itraffic_dcc_today += strlen(buf) + 1;
748     else if (!strncmp(dcc[idx].type->name, "FILES", 5))
749     itraffic_dcc_today += strlen(buf) + 1;
750     else if (!strcmp(dcc[idx].type->name, "SEND"))
751     itraffic_trans_today += strlen(buf) + 1;
752     else if (!strncmp(dcc[idx].type->name, "GET", 3))
753     itraffic_trans_today += strlen(buf) + 1;
754     else
755     itraffic_unknown_today += strlen(buf) + 1;
756     }
757 guppy 1.56 dcc[idx].type->activity(idx, buf, i);
758 fabian 1.13 } else
759 segfault 1.1 putlog(LOG_MISC, "*",
760     "!!! untrapped dcc activity: type %s, sock %d",
761     dcc[idx].type->name, dcc[idx].sock);
762     break;
763     }
764     } else if (xx == -1) { /* EOF from someone */
765     int idx;
766    
767 fabian 1.45 if (i == STDOUT && !backgrd)
768 segfault 1.1 fatal("END OF FILE ON TERMINAL", 0);
769     for (idx = 0; idx < dcc_total; idx++)
770     if (dcc[idx].sock == i) {
771     if (dcc[idx].type && dcc[idx].type->eof)
772     dcc[idx].type->eof(idx);
773     else {
774     putlog(LOG_MISC, "*",
775     "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
776 fabian 1.2 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
777     killsock(i);
778 segfault 1.1 lostdcc(idx);
779     }
780     idx = dcc_total + 1;
781     }
782     if (idx == dcc_total) {
783     putlog(LOG_MISC, "*",
784 fabian 1.2 "(@) EOF socket %d, not a dcc socket, not anything.", i);
785     close(i);
786     killsock(i);
787 segfault 1.1 }
788 fabian 1.45 } else if (xx == -2 && errno != EINTR) { /* select() error */
789 segfault 1.1 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
790     for (i = 0; i < dcc_total; i++) {
791     if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
792     putlog(LOG_MISC, "*",
793     "DCC socket %d (type %d, name '%s') expired -- pfft",
794     dcc[i].sock, dcc[i].type, dcc[i].nick);
795     killsock(dcc[i].sock);
796     lostdcc(i);
797     i--;
798     }
799     }
800 fabian 1.45 } else if (xx == -3) {
801 segfault 1.1 call_hook(HOOK_IDLE);
802 fabian 1.27 socket_cleanup = 0; /* If we've been idle, cleanup & flush */
803 segfault 1.1 }
804 fabian 1.27
805 segfault 1.1 if (do_restart) {
806     if (do_restart == -2)
807     rehash();
808     else {
809 fabian 1.27 /* Unload as many modules as possible */
810 segfault 1.1 int f = 1;
811     module_entry *p;
812     Function x;
813     char xx[256];
814 guppy 1.59
815     /* oops, I guess we should call this event before tcl is restarted */
816 stdarg 1.85 check_bind_event("prerestart");
817 segfault 1.1
818     while (f) {
819     f = 0;
820     for (p = module_list; p != NULL; p = p->next) {
821     dependancy *d = dependancy_list;
822     int ok = 1;
823    
824     while (ok && d) {
825     if (d->needed == p)
826     ok = 0;
827     d = d->next;
828     }
829     if (ok) {
830     strcpy(xx, p->name);
831 guppy 1.103 if (module_unload(xx, botnetnick) == NULL) {
832 segfault 1.1 f = 1;
833     break;
834     }
835     }
836     }
837     }
838     p = module_list;
839     if (p && p->next && p->next->next)
840 fabian 1.45 /* Should be only 2 modules now - blowfish (or some other
841     encryption module) and eggdrop. */
842 ite 1.73 putlog(LOG_MISC, "*", _("Stagnant module; there WILL be memory leaks!"));
843 segfault 1.1 flushlogs();
844     kill_tcl();
845 stdarg 1.87 timer_destroy_all(); /* Destroy all timers. */
846 fabian 1.8 init_tcl(argc, argv);
847 fabian 1.30 /* We expect the encryption module as the current module pointed
848     * to by `module_list'.
849     */
850 segfault 1.1 x = p->funcs[MODCALL_START];
851 fabian 1.30 /* `NULL' indicates that we just recently restarted. The module
852     * is expected to re-initialise as needed.
853     */
854     x(NULL);
855 segfault 1.1 rehash();
856     restart_chons();
857 guppy 1.61 call_hook(HOOK_LOADED);
858 segfault 1.1 }
859     do_restart = 0;
860     }
861     }
862     }

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