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

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Revision 1.14 - (hide annotations) (download) (as text)
Tue Dec 21 17:35:09 1999 UTC (19 years, 7 months ago) by fabian
Branch: MAIN
Changes since 1.13: +16 -18 lines
File MIME type: text/x-chdr
Tothwolf's id-header

1 segfault 1.1 /*
2     * main.c -- handles:
3 fabian 1.14 * core event handling
4     * signal handling
5     * command line arguments
6     * context and assert debugging
7 segfault 1.1 *
8     * dprintf'ized, 15nov1995
9 fabian 1.14 *
10     * $Id$
11 segfault 1.1 */
12 fabian 1.9 /*
13 fabian 1.14 * Copyright (C) 1997 Robey Pointer
14     * Copyright (C) 1999 Eggheads
15 fabian 1.9 *
16 fabian 1.14 * This program is free software; you can redistribute it and/or
17     * modify it under the terms of the GNU General Public License
18     * as published by the Free Software Foundation; either version 2
19     * of the License, or (at your option) any later version.
20 segfault 1.1 *
21     * This program is distributed in the hope that it will be useful,
22     * but WITHOUT ANY WARRANTY; without even the implied warranty of
23     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
24     * GNU General Public License for more details.
25 fabian 1.9 *
26 segfault 1.1 * You should have received a copy of the GNU General Public License
27     * along with this program; if not, write to the Free Software
28 fabian 1.14 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
29     */
30     /*
31 segfault 1.1 * The author (Robey Pointer) can be reached at: robey@netcom.com
32     * NOTE: Robey is no long working on this code, there is a discussion
33     * list avaliable at eggheads@eggheads.org.
34     */
35    
36     #include "main.h"
37     #include <time.h>
38     #include <fcntl.h>
39     #include <errno.h>
40     #include <signal.h>
41     #include <netdb.h>
42     #include <setjmp.h>
43     #ifdef STOP_UAC /* osf/1 complains a lot */
44     #include <sys/sysinfo.h>
45     #define UAC_NOPRINT 0x00000001 /* Don't report unaligned fixups */
46     #endif
47     /* some systems have a working sys/wait.h even though configure will
48     * decide it's not bsd compatable. oh well. */
49     #include "chan.h"
50     #include "modules.h"
51     #include "tandem.h"
52 fabian 1.5 #ifdef CYGWIN_HACKS
53     #include <windows.h>
54     BOOL FreeConsole(VOID);
55     #endif
56 segfault 1.1
57     #ifndef _POSIX_SOURCE
58     /* solaris needs this */
59     #define _POSIX_SOURCE 1
60     #endif
61    
62     extern char origbotname[];
63     extern int dcc_total;
64     extern struct dcc_t *dcc;
65     extern int conmask;
66     extern struct userrec *userlist;
67     extern int cache_hit, cache_miss;
68     extern char userfile[];
69     extern struct chanset_t *chanset;
70     extern char botnetnick[];
71     extern log_t *logs;
72     extern Tcl_Interp *interp;
73     extern int max_logs;
74     extern tcl_timer_t *timer, *utimer;
75     extern jmp_buf alarmret;
76     extern int quick_logs; /* dw */
77    
78 fabian 1.14 /*
79 segfault 1.1 * Please use the PATCH macro instead of directly altering the version
80     * string from now on (it makes it much easier to maintain patches).
81     * Also please read the README file regarding your rights to distribute
82     * modified versions of this bot.
83     */
84    
85 fabian 1.12 char egg_version[1024] = "1.5.1";
86     int egg_numver = 1050100;
87 segfault 1.1
88     char notify_new[121] = ""; /* person to send a note to for new users */
89     int default_flags = 0; /* default user flags and */
90     int default_uflags = 0; /* default userdefinied flags for people */
91     /* who say 'hello' or for .adduser */
92    
93     int backgrd = 1; /* run in the background? */
94     int con_chan = 0; /* foreground: constantly display channel
95     * stats? */
96     int term_z = 0; /* foreground: use the terminal as a party
97     * line? */
98 fabian 1.4 char configfile[121] = "eggdrop.conf"; /* name of the config file */
99 segfault 1.1 char helpdir[121]; /* directory of help files (if used) */
100     char textdir[121] = ""; /* directory for text files that get dumped */
101     int keep_all_logs = 0; /* never erase logfiles, no matter how old
102     * they are? */
103     time_t online_since; /* unix-time that the bot loaded up */
104     int make_userfile = 0; /* using bot in make-userfile mode? (first
105     * user to 'hello' becomes master) */
106     char owner[121] = ""; /* permanent owner(s) of the bot */
107     char pid_file[40]; /* name of the file for the pid to be
108     * stored in */
109     int save_users_at = 0; /* how many minutes past the hour to
110     * save the userfile? */
111     int notify_users_at = 0; /* how many minutes past the hour to
112     * notify users of notes? */
113     int switch_logfiles_at = 300; /* when (military time) to switch logfiles */
114     char version[81]; /* version info (long form) */
115     char ver[41]; /* version info (short form) */
116     char egg_xtra[2048]; /* patch info */
117     int use_stderr = 1; /* send stuff to stderr instead of logfiles? */
118     int do_restart = 0; /* .restart has been called, restart asap */
119     int die_on_sighup = 0; /* die if bot receives SIGHUP */
120     int die_on_sigterm = 0; /* die if bot receives SIGTERM */
121     int resolve_timeout = 15; /* hostname/address lookup timeout */
122     time_t now; /* duh, now :) */
123 fabian 1.13 int otraffic_irc = 0; /* traffic stats */
124     int otraffic_irc_today = 0;
125     int otraffic_bn = 0;
126     int otraffic_bn_today = 0;
127     int otraffic_dcc = 0;
128     int otraffic_dcc_today = 0;
129     int otraffic_filesys = 0;
130     int otraffic_filesys_today = 0;
131     int otraffic_trans = 0;
132     int otraffic_trans_today = 0;
133     int otraffic_unknown = 0;
134     int otraffic_unknown_today = 0;
135     int itraffic_irc = 0;
136     int itraffic_irc_today = 0;
137     int itraffic_bn = 0;
138     int itraffic_bn_today = 0;
139     int itraffic_dcc = 0;
140     int itraffic_dcc_today = 0;
141     int itraffic_trans = 0;
142     int itraffic_trans_today = 0;
143     int itraffic_unknown = 0;
144     int itraffic_unknown_today = 0;
145 segfault 1.1
146 fabian 1.11 #ifdef DEBUG_CONTEXT
147 segfault 1.1 /* context storage for fatal crashes */
148     char cx_file[16][30];
149     char cx_note[16][256];
150     int cx_line[16];
151     int cx_ptr = 0;
152 fabian 1.10 #endif
153 segfault 1.1
154     void fatal(char *s, int recoverable)
155     {
156     int i;
157    
158     putlog(LOG_MISC, "*", "* %s", s);
159     flushlogs();
160     for (i = 0; i < dcc_total; i++)
161     killsock(dcc[i].sock);
162     unlink(pid_file);
163     if (!recoverable)
164     exit(1);
165     }
166    
167     int expmem_chanprog(), expmem_users(), expmem_misc(), expmem_dccutil(),
168     expmem_botnet(), expmem_tcl(), expmem_tclhash(), expmem_net(),
169     expmem_modules(int), expmem_language(), expmem_tcldcc();
170    
171     /* for mem.c : calculate memory we SHOULD be using */
172     int expected_memory()
173     {
174     int tot;
175    
176 fabian 1.10 Context;
177 segfault 1.1 tot = expmem_chanprog() + expmem_users() + expmem_misc() +
178     expmem_dccutil() + expmem_botnet() + expmem_tcl() + expmem_tclhash() +
179     expmem_net() + expmem_modules(0) + expmem_language() + expmem_tcldcc();
180     return tot;
181     }
182    
183     static void check_expired_dcc()
184     {
185     int i;
186    
187     for (i = 0; i < dcc_total; i++)
188     if (dcc[i].type && dcc[i].type->timeout_val &&
189     ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
190     if (dcc[i].type->timeout)
191     dcc[i].type->timeout(i);
192     else if (dcc[i].type->eof)
193     dcc[i].type->eof(i);
194     else
195     continue;
196     /* only timeout 1 socket per cycle, too risky for more */
197     return;
198     }
199     }
200    
201 fabian 1.11 #ifdef DEBUG_CONTEXT
202 segfault 1.1 static int nested_debug = 0;
203    
204     void write_debug()
205     {
206     int x;
207     char s[80];
208     int y;
209    
210     if (nested_debug) {
211     /* yoicks, if we have this there's serious trouble */
212     /* all of these are pretty reliable, so we'll try these */
213     /* dont try and display context-notes in here, it's _not_ safe <cybah> */
214     x = creat("DEBUG.DEBUG", 0644);
215     setsock(x, SOCK_NONSOCK);
216     if (x >= 0) {
217     strcpy(s, ctime(&now));
218     dprintf(-x, "Debug (%s) written %s", ver, s);
219     dprintf(-x, "Please report problem to eggheads@eggheads.org");
220     dprintf(-x, "after a visit to http://www.eggheads.org/bugs.html");
221     dprintf(-x, "Full Patch List: %s\n", egg_xtra);
222     dprintf(-x, "Context: ");
223     cx_ptr = cx_ptr & 15;
224     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
225     dprintf(-x, "%s/%d,\n ", cx_file[y], cx_line[y]);
226     dprintf(-x, "%s/%d\n\n", cx_file[y], cx_line[y]);
227     killsock(x);
228     close(x);
229     }
230     exit(1); /* dont even try & tell people about, that may
231     * have caused the fault last time */
232     } else
233     nested_debug = 1;
234     putlog(LOG_MISC, "*", "* Last context: %s/%d [%s]", cx_file[cx_ptr],
235     cx_line[cx_ptr], cx_note[cx_ptr][0] ? cx_note[cx_ptr] : "");
236 fabian 1.2 putlog(LOG_MISC, "*", "* Please REPORT this BUG!");
237     putlog(LOG_MISC, "*", "* Check doc/BUG-REPORT on how to do so.");
238 fabian 1.9 x = creat("DEBUG", 0644);
239 segfault 1.1 setsock(x, SOCK_NONSOCK);
240     if (x < 0) {
241     putlog(LOG_MISC, "*", "* Failed to write DEBUG");
242     } else {
243     strcpy(s, ctime(&now));
244     dprintf(-x, "Debug (%s) written %s", ver, s);
245     dprintf(-x, "Full Patch List: %s\n", egg_xtra);
246     #ifdef STATIC
247     dprintf(-x, "STATICALLY LINKED\n");
248     #endif
249     strcpy(s, "info library");
250     if (interp && (Tcl_Eval(interp, s) == TCL_OK))
251     dprintf(-x, "Using tcl library: %s (header version %s)\n",
252     interp->result, TCL_VERSION);
253     dprintf(-x, "Compile flags: %s\n", CCFLAGS);
254     dprintf(-x, "Link flags : %s\n", LDFLAGS);
255     dprintf(-x, "Strip flags : %s\n", STRIPFLAGS);
256     dprintf(-x, "Context: ");
257     cx_ptr = cx_ptr & 15;
258     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
259     dprintf(-x, "%s/%d, [%s]\n ", cx_file[y], cx_line[y],
260     (cx_note[y][0]) ? cx_note[y] : "");
261     dprintf(-x, "%s/%d [%s]\n\n", cx_file[cx_ptr], cx_line[cx_ptr],
262     (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
263     tell_dcc(-x);
264     dprintf(-x, "\n");
265     debug_mem_to_dcc(-x);
266     killsock(x);
267     close(x);
268     putlog(LOG_MISC, "*", "* Wrote DEBUG");
269     }
270     }
271 fabian 1.10 #endif
272 fabian 1.2
273 segfault 1.1 static void got_bus(int z)
274     {
275 fabian 1.11 #ifdef DEBUG_CONTEXT
276 segfault 1.1 write_debug();
277 fabian 1.10 #endif
278 segfault 1.1 fatal("BUS ERROR -- CRASHING!", 1);
279     #ifdef SA_RESETHAND
280     kill(getpid(), SIGBUS);
281     #else
282     exit(1);
283     #endif
284     }
285    
286     static void got_segv(int z)
287     {
288 fabian 1.11 #ifdef DEBUG_CONTEXT
289 segfault 1.1 write_debug();
290 fabian 1.10 #endif
291 segfault 1.1 fatal("SEGMENT VIOLATION -- CRASHING!", 1);
292     #ifdef SA_RESETHAND
293     kill(getpid(), SIGSEGV);
294     #else
295     exit(1);
296     #endif
297     }
298    
299     static void got_fpe(int z)
300     {
301 fabian 1.11 #ifdef DEBUG_CONTEXT
302 segfault 1.1 write_debug();
303 fabian 1.10 #endif
304 segfault 1.1 fatal("FLOATING POINT ERROR -- CRASHING!", 0);
305     }
306    
307     static void got_term(int z)
308     {
309     write_userfile(-1);
310     check_tcl_event("sigterm");
311     if (die_on_sigterm) {
312     botnet_send_chat(-1, botnetnick, "ACK, I've been terminated!");
313     fatal("TERMINATE SIGNAL -- SIGNING OFF", 0);
314     } else {
315     putlog(LOG_MISC, "*", "RECEIVED TERMINATE SIGNAL (IGNORING)");
316     }
317     }
318    
319     static void got_quit(int z)
320     {
321     check_tcl_event("sigquit");
322     putlog(LOG_MISC, "*", "RECEIVED QUIT SIGNAL (IGNORING)");
323     return;
324     }
325    
326     static void got_hup(int z)
327     {
328     write_userfile(-1);
329     check_tcl_event("sighup");
330     if (die_on_sighup) {
331     fatal("HANGUP SIGNAL -- SIGNING OFF", 0);
332     } else
333     putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
334     do_restart = -2;
335     return;
336     }
337    
338     static void got_alarm(int z)
339     {
340     /* a call to resolver (gethostbyname, etc) timed out */
341     longjmp(alarmret, 1);
342     /* STUPID STUPID STUPID */
343     /* return; */
344     }
345    
346     /* got ILL signal -- log context and continue */
347     static void got_ill(int z)
348     {
349     check_tcl_event("sigill");
350 fabian 1.11 #ifdef DEBUG_CONTEXT
351 segfault 1.1 putlog(LOG_MISC, "*", "* Context: %s/%d [%s]", cx_file[cx_ptr],
352     cx_line[cx_ptr], (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
353 fabian 1.5 #endif
354 segfault 1.1 }
355    
356 fabian 1.11 #ifdef DEBUG_CONTEXT
357 fabian 1.10 /* Context */
358     void eggContext(char *file, int line, char *module)
359     {
360     char x[100];
361    
362     if (!module)
363     sprintf(x, "%s", file);
364     else
365     sprintf(x, "%s:%s", module, file);
366     x[30] = 0;
367     cx_ptr = ((cx_ptr + 1) & 15);
368     strcpy(cx_file[cx_ptr], x);
369     cx_line[cx_ptr] = line;
370     cx_note[cx_ptr][0] = 0;
371     }
372    
373     /* ContextNote */
374     void eggContextNote(char *file, int line, char *module, char *note)
375     {
376     char x[100];
377    
378     if (!module)
379     sprintf(x, "%s", file);
380     else
381     sprintf(x, "%s:%s", module, file);
382     x[30] = 0;
383     cx_ptr = ((cx_ptr + 1) & 15);
384     strcpy(cx_file[cx_ptr], x);
385     cx_line[cx_ptr] = line;
386     strncpy(cx_note[cx_ptr], note, 255);
387     cx_note[cx_ptr][255] = 0;
388     }
389 fabian 1.11 #endif
390 fabian 1.10
391 fabian 1.11 #ifdef DEBUG_ASSERT
392 fabian 1.10 /* Assert */
393     void eggAssert(char *file, int line, char *module, int expr)
394     {
395     if (!(expr)) {
396 fabian 1.11 #ifdef DEBUG_CONTEXT
397 fabian 1.10 write_debug();
398 fabian 1.11 #endif
399 fabian 1.10 if (!module) {
400     putlog(LOG_MISC, "*", "* In file %s, line %u", file, line);
401     } else {
402     putlog(LOG_MISC, "*", "* In file %s:%s, line %u", module, file, line);
403     }
404     fatal("ASSERT FAILED -- CRASHING!", 1);
405     }
406     }
407     #endif
408    
409 segfault 1.1 static void do_arg(char *s)
410     {
411     int i;
412    
413     if (s[0] == '-')
414     for (i = 1; i < strlen(s); i++) {
415     if (s[i] == 'n')
416     backgrd = 0;
417     if (s[i] == 'c') {
418     con_chan = 1;
419     term_z = 0;
420     }
421     if (s[i] == 't') {
422     con_chan = 0;
423     term_z = 1;
424     }
425     if (s[i] == 'm')
426     make_userfile = 1;
427     if (s[i] == 'v') {
428     char x[256], *z = x;
429    
430     strcpy(x, egg_version);
431     newsplit(&z);
432     newsplit(&z);
433     printf("%s\n", version);
434     if (z[0])
435     printf(" (patches: %s)\n", z);
436     exit(0);
437     }
438     if (s[i] == 'h') {
439     printf("\n%s\n\n", version);
440     printf(EGG_USAGE);
441     printf("\n");
442     exit(0);
443     }
444     } else
445     strcpy(configfile, s);
446     }
447    
448     void backup_userfile()
449     {
450     char s[150];
451    
452     putlog(LOG_MISC, "*", USERF_BACKUP);
453     strcpy(s, userfile);
454     strcat(s, "~bak");
455     copyfile(userfile, s);
456     }
457    
458     /* timer info: */
459     static int lastmin = 99;
460     static time_t then;
461     static struct tm *nowtm;
462    
463     /* rally BB, this is not QUITE as bad as it seems <G> */
464     /* ONCE A SECOND */
465     static void core_secondly()
466     {
467     static int cnt = 0;
468     int miltime;
469    
470     do_check_timers(&utimer); /* secondly timers */
471     cnt++;
472     if (cnt >= 10) { /* every 10 seconds */
473     cnt = 0;
474     check_expired_dcc();
475     if (con_chan && !backgrd) {
476     dprintf(DP_STDOUT, "\033[2J\033[1;1H");
477     tell_verbose_status(DP_STDOUT);
478     do_module_report(DP_STDOUT, 0, "server");
479     do_module_report(DP_STDOUT, 0, "channels");
480     tell_mem_status_dcc(DP_STDOUT);
481     }
482     }
483 fabian 1.10 Context;
484 segfault 1.1 nowtm = localtime(&now);
485     if (nowtm->tm_min != lastmin) {
486     int i = 0;
487    
488     /* once a minute */
489     lastmin = (lastmin + 1) % 60;
490     call_hook(HOOK_MINUTELY);
491     check_expired_ignores();
492     autolink_cycle(NULL); /* attempt autolinks */
493     /* in case for some reason more than 1 min has passed: */
494     while (nowtm->tm_min != lastmin) {
495     /* timer drift, dammit */
496     debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm->tm_min);
497 fabian 1.10 Context;
498 segfault 1.1 i++;
499     lastmin = (lastmin + 1) % 60;
500     call_hook(HOOK_MINUTELY);
501     }
502     if (i > 1)
503     putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
504     miltime = (nowtm->tm_hour * 100) + (nowtm->tm_min);
505 fabian 1.10 Context;
506 segfault 1.1 if (((int) (nowtm->tm_min / 5) * 5) == (nowtm->tm_min)) { /* 5 min */
507     call_hook(HOOK_5MINUTELY);
508     check_botnet_pings();
509 fabian 1.10 Context;
510 segfault 1.1 if (quick_logs == 0) {
511     flushlogs();
512     check_logsize();
513     }
514     if (miltime == 0) { /* at midnight */
515     char s[128];
516     int j;
517    
518     s[my_strcpy(s, ctime(&now)) - 1] = 0;
519 fabian 1.4 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
520 segfault 1.1 backup_userfile();
521     for (j = 0; j < max_logs; j++) {
522     if (logs[j].filename != NULL && logs[j].f != NULL) {
523     fclose(logs[j].f);
524     logs[j].f = NULL;
525     }
526     }
527     }
528     }
529 fabian 1.10 Context;
530 segfault 1.1 if (nowtm->tm_min == notify_users_at)
531     call_hook(HOOK_HOURLY);
532 fabian 1.10 Context; /* these no longer need checking since they are
533 segfault 1.1 * all check vs minutely settings and we only
534     * get this far on the minute */
535     if (miltime == switch_logfiles_at) {
536     call_hook(HOOK_DAILY);
537     if (!keep_all_logs) {
538     putlog(LOG_MISC, "*", MISC_LOGSWITCH);
539     for (i = 0; i < max_logs; i++)
540     if (logs[i].filename) {
541     char s[1024];
542    
543     if (logs[i].f) {
544     fclose(logs[i].f);
545     logs[i].f = NULL;
546     }
547     simple_sprintf(s, "%s.yesterday", logs[i].filename);
548     unlink(s);
549 fabian 1.2 movefile(logs[i].filename, s);
550 segfault 1.1 }
551     }
552     }
553     }
554     }
555    
556     static void core_minutely()
557     {
558 fabian 1.10 Context;
559 segfault 1.1 check_tcl_time(nowtm);
560     do_check_timers(&timer);
561 fabian 1.10 Context;
562 segfault 1.1 if (quick_logs != 0) {
563     flushlogs();
564     check_logsize();
565     }
566     }
567    
568     static void core_hourly()
569     {
570 fabian 1.10 Context;
571 segfault 1.1 write_userfile(-1);
572     }
573    
574     static void event_rehash()
575     {
576 fabian 1.10 Context;
577 segfault 1.1 check_tcl_event("rehash");
578     }
579    
580     static void event_prerehash()
581     {
582 fabian 1.10 Context;
583 segfault 1.1 check_tcl_event("prerehash");
584     }
585    
586     static void event_save()
587     {
588 fabian 1.10 Context;
589 segfault 1.1 check_tcl_event("save");
590     }
591    
592     static void event_logfile()
593     {
594 fabian 1.10 Context;
595 segfault 1.1 check_tcl_event("logfile");
596     }
597    
598 fabian 1.13 static void event_resettraffic()
599     {
600     Context;
601     otraffic_irc += otraffic_irc_today;
602     itraffic_irc += itraffic_irc_today;
603     otraffic_bn += otraffic_bn_today;
604     itraffic_bn += itraffic_bn_today;
605     otraffic_dcc += otraffic_dcc_today;
606     itraffic_dcc += itraffic_dcc_today;
607     otraffic_unknown += otraffic_unknown_today;
608     itraffic_unknown += itraffic_unknown_today;
609     otraffic_trans += otraffic_trans_today;
610     itraffic_trans += itraffic_trans_today;
611     otraffic_irc_today = otraffic_bn_today = 0;
612     otraffic_dcc_today = otraffic_unknown_today = 0;
613     itraffic_irc_today = itraffic_bn_today = 0;
614     itraffic_dcc_today = itraffic_unknown_today = 0;
615     itraffic_trans_today = 0;
616     }
617    
618 segfault 1.1 void kill_tcl();
619     extern module_entry *module_list;
620     void restart_chons();
621    
622     #ifdef STATIC
623     void check_static(char *, char *(*)());
624    
625     #include "mod/static.h"
626     #endif
627     int init_mem(), init_dcc_max(), init_userent(), init_misc(), init_bots(),
628 fabian 1.8 init_net(), init_modules(), init_tcl(int, char **),
629     init_language(int);
630 fabian 1.11
631     void patch(char *str)
632     {
633     char *p = strchr(egg_version, '+');
634    
635     if (!p)
636     p = &egg_version[strlen(egg_version)];
637     sprintf(p, "+%s", str);
638     egg_numver++;
639     sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
640     }
641 segfault 1.1
642     int main(int argc, char **argv)
643     {
644     int xx, i;
645     char buf[520], s[520];
646     FILE *f;
647     struct sigaction sv;
648     struct chanset_t *chan;
649    
650     /* initialise context list */
651     for (i = 0; i < 16; i++) {
652 fabian 1.10 Context;
653 segfault 1.1 }
654     #include "patch.h"
655     /* version info! */
656     sprintf(ver, "eggdrop v%s", egg_version);
657     sprintf(version, "Eggdrop v%s (c)1997 Robey Pointer (c)1999 Eggheads", egg_version);
658     /* now add on the patchlevel (for Tcl) */
659 fabian 1.2 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
660 segfault 1.1 strcat(egg_version, egg_xtra);
661 fabian 1.10 Context;
662 segfault 1.1 #ifdef STOP_UAC
663     {
664     int nvpair[2];
665    
666     nvpair[0] = SSIN_UACPROC;
667     nvpair[1] = UAC_NOPRINT;
668     setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
669     }
670     #endif
671     /* set up error traps: */
672     sv.sa_handler = got_bus;
673     sigemptyset(&sv.sa_mask);
674     #ifdef SA_RESETHAND
675     sv.sa_flags = SA_RESETHAND;
676     #else
677     sv.sa_flags = 0;
678     #endif
679     sigaction(SIGBUS, &sv, NULL);
680     sv.sa_handler = got_segv;
681     sigaction(SIGSEGV, &sv, NULL);
682     #ifdef SA_RESETHAND
683     sv.sa_flags = 0;
684     #endif
685     sv.sa_handler = got_fpe;
686     sigaction(SIGFPE, &sv, NULL);
687     sv.sa_handler = got_term;
688     sigaction(SIGTERM, &sv, NULL);
689     sv.sa_handler = got_hup;
690     sigaction(SIGHUP, &sv, NULL);
691     sv.sa_handler = got_quit;
692     sigaction(SIGQUIT, &sv, NULL);
693     sv.sa_handler = SIG_IGN;
694     sigaction(SIGPIPE, &sv, NULL);
695     sv.sa_handler = got_ill;
696     sigaction(SIGILL, &sv, NULL);
697     sv.sa_handler = got_alarm;
698     sigaction(SIGALRM, &sv, NULL);
699     /* initialize variables and stuff */
700     now = time(NULL);
701     chanset = NULL;
702     nowtm = localtime(&now);
703     lastmin = nowtm->tm_min;
704     srandom(now);
705     init_mem();
706     init_language(1);
707     if (argc > 1)
708     for (i = 1; i < argc; i++)
709     do_arg(argv[i]);
710     printf("\n%s\n", version);
711     init_dcc_max();
712     init_userent();
713     init_misc();
714     init_bots();
715     init_net();
716     init_modules();
717 fabian 1.8 init_tcl(argc, argv);
718 segfault 1.1 init_language(0);
719     #ifdef STATIC
720     link_statics();
721     #endif
722 fabian 1.10 Context;
723 segfault 1.1 strcpy(s, ctime(&now));
724     s[strlen(s) - 1] = 0;
725     strcpy(&s[11], &s[20]);
726     putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
727     chanprog();
728 fabian 1.10 Context;
729 segfault 1.1 if (encrypt_pass == 0) {
730     printf(MOD_NOCRYPT);
731     exit(1);
732     }
733     i = 0;
734     for (chan = chanset; chan; chan = chan->next)
735     i++;
736 fabian 1.4 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
737 segfault 1.1 botnetnick, i, count_users(userlist));
738     cache_miss = 0;
739     cache_hit = 0;
740 fabian 1.10 Context;
741 segfault 1.1 sprintf(pid_file, "pid.%s", botnetnick);
742 fabian 1.10 Context;
743 segfault 1.1 /* check for pre-existing eggdrop! */
744     f = fopen(pid_file, "r");
745     if (f != NULL) {
746     fgets(s, 10, f);
747     xx = atoi(s);
748     kill(xx, SIGCHLD); /* meaningless kill to determine if pid
749     * is used */
750     if (errno != ESRCH) {
751     printf(EGG_RUNNING1, origbotname);
752     printf(EGG_RUNNING2, pid_file);
753     exit(1);
754     }
755     }
756 fabian 1.10 Context;
757 fabian 1.5 #ifndef CYGWIN_HACKS
758 segfault 1.1 /* move into background? */
759     if (backgrd) {
760     xx = fork();
761     if (xx == -1)
762     fatal("CANNOT FORK PROCESS.", 0);
763     if (xx != 0) {
764     FILE *fp;
765    
766     /* need to attempt to write pid now, not later */
767     unlink(pid_file);
768     fp = fopen(pid_file, "w");
769     if (fp != NULL) {
770     fprintf(fp, "%u\n", xx);
771     if (fflush(fp)) {
772     /* kill bot incase a botchk is run from crond */
773     printf(EGG_NOWRITE, pid_file);
774     printf(" Try freeing some disk space\n");
775     fclose(fp);
776     unlink(pid_file);
777     exit(1);
778     }
779     fclose(fp);
780     } else
781     printf(EGG_NOWRITE, pid_file);
782     printf("Launched into the background (pid: %d)\n\n", xx);
783     #if HAVE_SETPGID
784     setpgid(xx, xx);
785     #endif
786     exit(0);
787     }
788     }
789 fabian 1.5 #endif
790 segfault 1.1 use_stderr = 0; /* stop writing to stderr now */
791     xx = getpid();
792     if ((xx != 0) && (!backgrd)) {
793     FILE *fp;
794    
795     /* write pid to file */
796     unlink(pid_file);
797     fp = fopen(pid_file, "w");
798     if (fp != NULL) {
799     fprintf(fp, "%u\n", xx);
800     if (fflush(fp)) {
801     /* let the bot live since this doesn't appear to be a botchk */
802     printf(EGG_NOWRITE, pid_file);
803     fclose(fp);
804     unlink(pid_file);
805     }
806     fclose(fp);
807     } else
808     printf(EGG_NOWRITE, pid_file);
809     }
810     if (backgrd) {
811     /* ok, try to disassociate from controlling terminal */
812     /* (finger cross) */
813 fabian 1.5 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
814 segfault 1.1 setpgid(0, 0);
815     #endif
816     /* close out stdin/out/err */
817     freopen("/dev/null", "r", stdin);
818     freopen("/dev/null", "w", stdout);
819     freopen("/dev/null", "w", stderr);
820 fabian 1.5 #ifdef CYGWIN_HACKS
821     FreeConsole();
822     #endif
823 segfault 1.1 /* tcl wants those file handles kept open */
824     /* close(0); close(1); close(2); */
825     }
826     /* terminal emulating dcc chat */
827     if ((!backgrd) && (term_z)) {
828     int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
829    
830     dcc[n].addr = iptolong(getmyip());
831     dcc[n].sock = STDOUT;
832     dcc[n].timeval = now;
833     dcc[n].u.chat->con_flags = conmask;
834     dcc[n].u.chat->strip_flags = STRIP_ALL;
835     dcc[n].status = STAT_ECHO;
836     strcpy(dcc[n].nick, "HQ");
837     strcpy(dcc[n].host, "llama@console");
838     dcc[n].user = get_user_by_handle(userlist, "HQ");
839     /* make sure there's an innocuous HQ user if needed */
840     if (!dcc[n].user) {
841     adduser(userlist, "HQ", "none", "-", USER_PARTY);
842     dcc[n].user = get_user_by_handle(userlist, "HQ");
843     }
844     setsock(STDOUT, 0); /* entry in net table */
845     dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
846     dcc_chatter(n);
847     }
848     then = now;
849     online_since = now;
850     autolink_cycle(NULL); /* hurry and connect to tandem bots */
851     add_help_reference("cmds1.help");
852     add_help_reference("cmds2.help");
853     add_help_reference("core.help");
854     add_hook(HOOK_SECONDLY, core_secondly);
855     add_hook(HOOK_MINUTELY, core_minutely);
856     add_hook(HOOK_HOURLY, core_hourly);
857     add_hook(HOOK_REHASH, event_rehash);
858     add_hook(HOOK_PRE_REHASH, event_prerehash);
859     add_hook(HOOK_USERFILE, event_save);
860     add_hook(HOOK_DAILY, event_logfile);
861 fabian 1.13 add_hook(HOOK_DAILY, event_resettraffic);
862 segfault 1.1
863     debug0("main: entering loop");
864     while (1) {
865     int socket_cleanup = 0;
866    
867 fabian 1.10 Context;
868 fabian 1.8 #if !defined(HAVE_PRE7_5_TCL) && !defined(HAVE_TCL_THREADS)
869 segfault 1.1 /* process a single tcl event */
870     Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
871 fabian 1.5 #endif
872 segfault 1.1 /* lets move some of this here, reducing the numer of actual
873     * calls to periodic_timers */
874     now = time(NULL);
875     random(); /* woop, lets really jumble things */
876     if (now != then) { /* once a second */
877     call_hook(HOOK_SECONDLY);
878     then = now;
879     }
880 fabian 1.10 Context;
881 segfault 1.1 /* only do this every so often */
882     if (!socket_cleanup) {
883     /* clean up sockets that were just left for dead */
884     for (i = 0; i < dcc_total; i++) {
885     if (dcc[i].type == &DCC_LOST) {
886     dcc[i].type = (struct dcc_table *) (dcc[i].sock);
887     lostdcc(i);
888     i--;
889     }
890     }
891     /* check for server or dcc activity */
892     dequeue_sockets();
893     socket_cleanup = 5;
894     } else
895     socket_cleanup--;
896     /* new net routines: help me mary! */
897     xx = sockgets(buf, &i);
898     if (xx >= 0) { /* non-error */
899     int idx;
900    
901 fabian 1.10 Context;
902 segfault 1.1 for (idx = 0; idx < dcc_total; idx++)
903     if (dcc[idx].sock == xx) {
904 fabian 1.13 if (dcc[idx].type && dcc[idx].type->activity) {
905     /* traffic stats */
906     if (dcc[idx].type->name) {
907     if (!strncmp(dcc[idx].type->name, "BOT", 3))
908     itraffic_bn_today += strlen(buf) + 1;
909     else if (!strcmp(dcc[idx].type->name, "SERVER"))
910     itraffic_irc_today += strlen(buf) + 1;
911     else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
912     itraffic_dcc_today += strlen(buf) + 1;
913     else if (!strncmp(dcc[idx].type->name, "FILES", 5))
914     itraffic_dcc_today += strlen(buf) + 1;
915     else if (!strcmp(dcc[idx].type->name, "SEND"))
916     itraffic_trans_today += strlen(buf) + 1;
917     else if (!strncmp(dcc[idx].type->name, "GET", 3))
918     itraffic_trans_today += strlen(buf) + 1;
919     else
920     itraffic_unknown_today += strlen(buf) + 1;
921     }
922     dcc[idx].type->activity(idx, buf, i);
923     } else
924 segfault 1.1 putlog(LOG_MISC, "*",
925     "!!! untrapped dcc activity: type %s, sock %d",
926     dcc[idx].type->name, dcc[idx].sock);
927     break;
928     }
929     } else if (xx == -1) { /* EOF from someone */
930     int idx;
931    
932     if ((i == STDOUT) && !backgrd)
933     fatal("END OF FILE ON TERMINAL", 0);
934 fabian 1.10 Context;
935 segfault 1.1 for (idx = 0; idx < dcc_total; idx++)
936     if (dcc[idx].sock == i) {
937     if (dcc[idx].type && dcc[idx].type->eof)
938     dcc[idx].type->eof(idx);
939     else {
940     putlog(LOG_MISC, "*",
941     "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
942 fabian 1.2 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
943     killsock(i);
944 segfault 1.1 lostdcc(idx);
945     }
946     idx = dcc_total + 1;
947     }
948     if (idx == dcc_total) {
949     putlog(LOG_MISC, "*",
950 fabian 1.2 "(@) EOF socket %d, not a dcc socket, not anything.", i);
951     close(i);
952     killsock(i);
953 segfault 1.1 }
954     } else if ((xx == -2) && (errno != EINTR)) { /* select() error */
955 fabian 1.10 Context;
956 segfault 1.1 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
957     for (i = 0; i < dcc_total; i++) {
958     if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
959     if (dcc[i].type == &DCC_LOST)
960     dcc[i].type = (struct dcc_table *) (dcc[i].sock);
961     putlog(LOG_MISC, "*",
962     "DCC socket %d (type %d, name '%s') expired -- pfft",
963     dcc[i].sock, dcc[i].type, dcc[i].nick);
964     killsock(dcc[i].sock);
965     lostdcc(i);
966     i--;
967     }
968     }
969     } else if (xx == (-3)) {
970     call_hook(HOOK_IDLE);
971     socket_cleanup = 0; /* if we've been idle, cleanup & flush */
972     }
973     if (do_restart) {
974     if (do_restart == -2)
975     rehash();
976     else {
977     /* unload as many modules as possible */
978     int f = 1;
979     module_entry *p;
980     Function x;
981     char xx[256];
982    
983     while (f) {
984     f = 0;
985     for (p = module_list; p != NULL; p = p->next) {
986     dependancy *d = dependancy_list;
987     int ok = 1;
988    
989     while (ok && d) {
990     if (d->needed == p)
991     ok = 0;
992     d = d->next;
993     }
994     if (ok) {
995     strcpy(xx, p->name);
996     if (module_unload(xx, origbotname) == NULL) {
997     f = 1;
998     break;
999     }
1000     }
1001     }
1002     }
1003     p = module_list;
1004     if (p && p->next && p->next->next)
1005     /* should be only 2 modules now -
1006     * blowfish & eggdrop */
1007     putlog(LOG_MISC, "*", MOD_STAGNANT);
1008 fabian 1.10 Context;
1009 segfault 1.1 flushlogs();
1010 fabian 1.10 Context;
1011 segfault 1.1 kill_tcl();
1012 fabian 1.8 init_tcl(argc, argv);
1013 segfault 1.1 init_language(0);
1014     x = p->funcs[MODCALL_START];
1015     x(0);
1016     rehash();
1017     restart_chons();
1018     }
1019     do_restart = 0;
1020     }
1021     }
1022     }

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