/[cvs]/eggdrop1.9/src/main.c
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Revision 1.13 - (hide annotations) (download) (as text)
Sun Dec 19 16:06:34 1999 UTC (19 years, 7 months ago) by fabian
Branch: MAIN
Changes since 1.12: +63 -3 lines
File MIME type: text/x-chdr
G`Quann's traffic patch

1 segfault 1.1 /*
2     * main.c -- handles:
3     * changing nicknames when the desired nick is in use
4     * flood detection
5     * signal handling
6     * command line arguments
7 fabian 1.10 * context and assert debugging
8 segfault 1.1 *
9     * dprintf'ized, 15nov1995
10     */
11 fabian 1.9 /*
12 segfault 1.1 * This file is part of the eggdrop source code
13     * copyright (c) 1997 Robey Pointer
14     * and is distributed according to the GNU general public license.
15     *
16     * Parts of this eggdrop source code are copyright (c)1999 Eggheads
17     * and is distributed according to the GNU general public license.
18 fabian 1.9 *
19 segfault 1.1 * This program is free software; you can redistribute it and/or modify
20     * it under the terms of the GNU General Public License as published by
21     * the Free Software Foundation; either version 2 of the License, or
22     * (at your option) any later version.
23     *
24     * This program is distributed in the hope that it will be useful,
25     * but WITHOUT ANY WARRANTY; without even the implied warranty of
26     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
27     * GNU General Public License for more details.
28 fabian 1.9 *
29 segfault 1.1 * You should have received a copy of the GNU General Public License
30     * along with this program; if not, write to the Free Software
31     * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
32 fabian 1.9 *
33 segfault 1.1 * The author (Robey Pointer) can be reached at: robey@netcom.com
34     * NOTE: Robey is no long working on this code, there is a discussion
35     * list avaliable at eggheads@eggheads.org.
36     */
37    
38     #include "main.h"
39     #include <time.h>
40     #include <fcntl.h>
41     #include <errno.h>
42     #include <signal.h>
43     #include <netdb.h>
44     #include <setjmp.h>
45     #ifdef STOP_UAC /* osf/1 complains a lot */
46     #include <sys/sysinfo.h>
47     #define UAC_NOPRINT 0x00000001 /* Don't report unaligned fixups */
48     #endif
49     /* some systems have a working sys/wait.h even though configure will
50     * decide it's not bsd compatable. oh well. */
51     #include "chan.h"
52     #include "modules.h"
53     #include "tandem.h"
54 fabian 1.5 #ifdef CYGWIN_HACKS
55     #include <windows.h>
56     BOOL FreeConsole(VOID);
57     #endif
58 segfault 1.1
59     #ifndef _POSIX_SOURCE
60     /* solaris needs this */
61     #define _POSIX_SOURCE 1
62     #endif
63    
64     extern char origbotname[];
65     extern int dcc_total;
66     extern struct dcc_t *dcc;
67     extern int conmask;
68     extern struct userrec *userlist;
69     extern int cache_hit, cache_miss;
70     extern char userfile[];
71     extern struct chanset_t *chanset;
72     extern char botnetnick[];
73     extern log_t *logs;
74     extern Tcl_Interp *interp;
75     extern int max_logs;
76     extern tcl_timer_t *timer, *utimer;
77     extern jmp_buf alarmret;
78     extern int quick_logs; /* dw */
79    
80     /*
81     * Please use the PATCH macro instead of directly altering the version
82     * string from now on (it makes it much easier to maintain patches).
83     * Also please read the README file regarding your rights to distribute
84     * modified versions of this bot.
85     */
86    
87 fabian 1.12 char egg_version[1024] = "1.5.1";
88     int egg_numver = 1050100;
89 segfault 1.1
90     char notify_new[121] = ""; /* person to send a note to for new users */
91     int default_flags = 0; /* default user flags and */
92     int default_uflags = 0; /* default userdefinied flags for people */
93     /* who say 'hello' or for .adduser */
94    
95     int backgrd = 1; /* run in the background? */
96     int con_chan = 0; /* foreground: constantly display channel
97     * stats? */
98     int term_z = 0; /* foreground: use the terminal as a party
99     * line? */
100 fabian 1.4 char configfile[121] = "eggdrop.conf"; /* name of the config file */
101 segfault 1.1 char helpdir[121]; /* directory of help files (if used) */
102     char textdir[121] = ""; /* directory for text files that get dumped */
103     int keep_all_logs = 0; /* never erase logfiles, no matter how old
104     * they are? */
105     time_t online_since; /* unix-time that the bot loaded up */
106     int make_userfile = 0; /* using bot in make-userfile mode? (first
107     * user to 'hello' becomes master) */
108     char owner[121] = ""; /* permanent owner(s) of the bot */
109     char pid_file[40]; /* name of the file for the pid to be
110     * stored in */
111     int save_users_at = 0; /* how many minutes past the hour to
112     * save the userfile? */
113     int notify_users_at = 0; /* how many minutes past the hour to
114     * notify users of notes? */
115     int switch_logfiles_at = 300; /* when (military time) to switch logfiles */
116     char version[81]; /* version info (long form) */
117     char ver[41]; /* version info (short form) */
118     char egg_xtra[2048]; /* patch info */
119     int use_stderr = 1; /* send stuff to stderr instead of logfiles? */
120     int do_restart = 0; /* .restart has been called, restart asap */
121     int die_on_sighup = 0; /* die if bot receives SIGHUP */
122     int die_on_sigterm = 0; /* die if bot receives SIGTERM */
123     int resolve_timeout = 15; /* hostname/address lookup timeout */
124     time_t now; /* duh, now :) */
125 fabian 1.13 int otraffic_irc = 0; /* traffic stats */
126     int otraffic_irc_today = 0;
127     int otraffic_bn = 0;
128     int otraffic_bn_today = 0;
129     int otraffic_dcc = 0;
130     int otraffic_dcc_today = 0;
131     int otraffic_filesys = 0;
132     int otraffic_filesys_today = 0;
133     int otraffic_trans = 0;
134     int otraffic_trans_today = 0;
135     int otraffic_unknown = 0;
136     int otraffic_unknown_today = 0;
137     int itraffic_irc = 0;
138     int itraffic_irc_today = 0;
139     int itraffic_bn = 0;
140     int itraffic_bn_today = 0;
141     int itraffic_dcc = 0;
142     int itraffic_dcc_today = 0;
143     int itraffic_trans = 0;
144     int itraffic_trans_today = 0;
145     int itraffic_unknown = 0;
146     int itraffic_unknown_today = 0;
147 segfault 1.1
148 fabian 1.11 #ifdef DEBUG_CONTEXT
149 segfault 1.1 /* context storage for fatal crashes */
150     char cx_file[16][30];
151     char cx_note[16][256];
152     int cx_line[16];
153     int cx_ptr = 0;
154 fabian 1.10 #endif
155 segfault 1.1
156     void fatal(char *s, int recoverable)
157     {
158     int i;
159    
160     putlog(LOG_MISC, "*", "* %s", s);
161     flushlogs();
162     for (i = 0; i < dcc_total; i++)
163     killsock(dcc[i].sock);
164     unlink(pid_file);
165     if (!recoverable)
166     exit(1);
167     }
168    
169     int expmem_chanprog(), expmem_users(), expmem_misc(), expmem_dccutil(),
170     expmem_botnet(), expmem_tcl(), expmem_tclhash(), expmem_net(),
171     expmem_modules(int), expmem_language(), expmem_tcldcc();
172    
173     /* for mem.c : calculate memory we SHOULD be using */
174     int expected_memory()
175     {
176     int tot;
177    
178 fabian 1.10 Context;
179 segfault 1.1 tot = expmem_chanprog() + expmem_users() + expmem_misc() +
180     expmem_dccutil() + expmem_botnet() + expmem_tcl() + expmem_tclhash() +
181     expmem_net() + expmem_modules(0) + expmem_language() + expmem_tcldcc();
182     return tot;
183     }
184    
185     static void check_expired_dcc()
186     {
187     int i;
188    
189     for (i = 0; i < dcc_total; i++)
190     if (dcc[i].type && dcc[i].type->timeout_val &&
191     ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
192     if (dcc[i].type->timeout)
193     dcc[i].type->timeout(i);
194     else if (dcc[i].type->eof)
195     dcc[i].type->eof(i);
196     else
197     continue;
198     /* only timeout 1 socket per cycle, too risky for more */
199     return;
200     }
201     }
202    
203 fabian 1.11 #ifdef DEBUG_CONTEXT
204 segfault 1.1 static int nested_debug = 0;
205    
206     void write_debug()
207     {
208     int x;
209     char s[80];
210     int y;
211    
212     if (nested_debug) {
213     /* yoicks, if we have this there's serious trouble */
214     /* all of these are pretty reliable, so we'll try these */
215     /* dont try and display context-notes in here, it's _not_ safe <cybah> */
216     x = creat("DEBUG.DEBUG", 0644);
217     setsock(x, SOCK_NONSOCK);
218     if (x >= 0) {
219     strcpy(s, ctime(&now));
220     dprintf(-x, "Debug (%s) written %s", ver, s);
221     dprintf(-x, "Please report problem to eggheads@eggheads.org");
222     dprintf(-x, "after a visit to http://www.eggheads.org/bugs.html");
223     dprintf(-x, "Full Patch List: %s\n", egg_xtra);
224     dprintf(-x, "Context: ");
225     cx_ptr = cx_ptr & 15;
226     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
227     dprintf(-x, "%s/%d,\n ", cx_file[y], cx_line[y]);
228     dprintf(-x, "%s/%d\n\n", cx_file[y], cx_line[y]);
229     killsock(x);
230     close(x);
231     }
232     exit(1); /* dont even try & tell people about, that may
233     * have caused the fault last time */
234     } else
235     nested_debug = 1;
236     putlog(LOG_MISC, "*", "* Last context: %s/%d [%s]", cx_file[cx_ptr],
237     cx_line[cx_ptr], cx_note[cx_ptr][0] ? cx_note[cx_ptr] : "");
238 fabian 1.2 putlog(LOG_MISC, "*", "* Please REPORT this BUG!");
239     putlog(LOG_MISC, "*", "* Check doc/BUG-REPORT on how to do so.");
240 fabian 1.9 x = creat("DEBUG", 0644);
241 segfault 1.1 setsock(x, SOCK_NONSOCK);
242     if (x < 0) {
243     putlog(LOG_MISC, "*", "* Failed to write DEBUG");
244     } else {
245     strcpy(s, ctime(&now));
246     dprintf(-x, "Debug (%s) written %s", ver, s);
247     dprintf(-x, "Full Patch List: %s\n", egg_xtra);
248     #ifdef STATIC
249     dprintf(-x, "STATICALLY LINKED\n");
250     #endif
251     strcpy(s, "info library");
252     if (interp && (Tcl_Eval(interp, s) == TCL_OK))
253     dprintf(-x, "Using tcl library: %s (header version %s)\n",
254     interp->result, TCL_VERSION);
255     dprintf(-x, "Compile flags: %s\n", CCFLAGS);
256     dprintf(-x, "Link flags : %s\n", LDFLAGS);
257     dprintf(-x, "Strip flags : %s\n", STRIPFLAGS);
258     dprintf(-x, "Context: ");
259     cx_ptr = cx_ptr & 15;
260     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
261     dprintf(-x, "%s/%d, [%s]\n ", cx_file[y], cx_line[y],
262     (cx_note[y][0]) ? cx_note[y] : "");
263     dprintf(-x, "%s/%d [%s]\n\n", cx_file[cx_ptr], cx_line[cx_ptr],
264     (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
265     tell_dcc(-x);
266     dprintf(-x, "\n");
267     debug_mem_to_dcc(-x);
268     killsock(x);
269     close(x);
270     putlog(LOG_MISC, "*", "* Wrote DEBUG");
271     }
272     }
273 fabian 1.10 #endif
274 fabian 1.2
275 segfault 1.1 static void got_bus(int z)
276     {
277 fabian 1.11 #ifdef DEBUG_CONTEXT
278 segfault 1.1 write_debug();
279 fabian 1.10 #endif
280 segfault 1.1 fatal("BUS ERROR -- CRASHING!", 1);
281     #ifdef SA_RESETHAND
282     kill(getpid(), SIGBUS);
283     #else
284     exit(1);
285     #endif
286     }
287    
288     static void got_segv(int z)
289     {
290 fabian 1.11 #ifdef DEBUG_CONTEXT
291 segfault 1.1 write_debug();
292 fabian 1.10 #endif
293 segfault 1.1 fatal("SEGMENT VIOLATION -- CRASHING!", 1);
294     #ifdef SA_RESETHAND
295     kill(getpid(), SIGSEGV);
296     #else
297     exit(1);
298     #endif
299     }
300    
301     static void got_fpe(int z)
302     {
303 fabian 1.11 #ifdef DEBUG_CONTEXT
304 segfault 1.1 write_debug();
305 fabian 1.10 #endif
306 segfault 1.1 fatal("FLOATING POINT ERROR -- CRASHING!", 0);
307     }
308    
309     static void got_term(int z)
310     {
311     write_userfile(-1);
312     check_tcl_event("sigterm");
313     if (die_on_sigterm) {
314     botnet_send_chat(-1, botnetnick, "ACK, I've been terminated!");
315     fatal("TERMINATE SIGNAL -- SIGNING OFF", 0);
316     } else {
317     putlog(LOG_MISC, "*", "RECEIVED TERMINATE SIGNAL (IGNORING)");
318     }
319     }
320    
321     static void got_quit(int z)
322     {
323     check_tcl_event("sigquit");
324     putlog(LOG_MISC, "*", "RECEIVED QUIT SIGNAL (IGNORING)");
325     return;
326     }
327    
328     static void got_hup(int z)
329     {
330     write_userfile(-1);
331     check_tcl_event("sighup");
332     if (die_on_sighup) {
333     fatal("HANGUP SIGNAL -- SIGNING OFF", 0);
334     } else
335     putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
336     do_restart = -2;
337     return;
338     }
339    
340     static void got_alarm(int z)
341     {
342     /* a call to resolver (gethostbyname, etc) timed out */
343     longjmp(alarmret, 1);
344     /* STUPID STUPID STUPID */
345     /* return; */
346     }
347    
348     /* got ILL signal -- log context and continue */
349     static void got_ill(int z)
350     {
351     check_tcl_event("sigill");
352 fabian 1.11 #ifdef DEBUG_CONTEXT
353 segfault 1.1 putlog(LOG_MISC, "*", "* Context: %s/%d [%s]", cx_file[cx_ptr],
354     cx_line[cx_ptr], (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
355 fabian 1.5 #endif
356 segfault 1.1 }
357    
358 fabian 1.11 #ifdef DEBUG_CONTEXT
359 fabian 1.10 /* Context */
360     void eggContext(char *file, int line, char *module)
361     {
362     char x[100];
363    
364     if (!module)
365     sprintf(x, "%s", file);
366     else
367     sprintf(x, "%s:%s", module, file);
368     x[30] = 0;
369     cx_ptr = ((cx_ptr + 1) & 15);
370     strcpy(cx_file[cx_ptr], x);
371     cx_line[cx_ptr] = line;
372     cx_note[cx_ptr][0] = 0;
373     }
374    
375     /* ContextNote */
376     void eggContextNote(char *file, int line, char *module, char *note)
377     {
378     char x[100];
379    
380     if (!module)
381     sprintf(x, "%s", file);
382     else
383     sprintf(x, "%s:%s", module, file);
384     x[30] = 0;
385     cx_ptr = ((cx_ptr + 1) & 15);
386     strcpy(cx_file[cx_ptr], x);
387     cx_line[cx_ptr] = line;
388     strncpy(cx_note[cx_ptr], note, 255);
389     cx_note[cx_ptr][255] = 0;
390     }
391 fabian 1.11 #endif
392 fabian 1.10
393 fabian 1.11 #ifdef DEBUG_ASSERT
394 fabian 1.10 /* Assert */
395     void eggAssert(char *file, int line, char *module, int expr)
396     {
397     if (!(expr)) {
398 fabian 1.11 #ifdef DEBUG_CONTEXT
399 fabian 1.10 write_debug();
400 fabian 1.11 #endif
401 fabian 1.10 if (!module) {
402     putlog(LOG_MISC, "*", "* In file %s, line %u", file, line);
403     } else {
404     putlog(LOG_MISC, "*", "* In file %s:%s, line %u", module, file, line);
405     }
406     fatal("ASSERT FAILED -- CRASHING!", 1);
407     }
408     }
409     #endif
410    
411 segfault 1.1 static void do_arg(char *s)
412     {
413     int i;
414    
415     if (s[0] == '-')
416     for (i = 1; i < strlen(s); i++) {
417     if (s[i] == 'n')
418     backgrd = 0;
419     if (s[i] == 'c') {
420     con_chan = 1;
421     term_z = 0;
422     }
423     if (s[i] == 't') {
424     con_chan = 0;
425     term_z = 1;
426     }
427     if (s[i] == 'm')
428     make_userfile = 1;
429     if (s[i] == 'v') {
430     char x[256], *z = x;
431    
432     strcpy(x, egg_version);
433     newsplit(&z);
434     newsplit(&z);
435     printf("%s\n", version);
436     if (z[0])
437     printf(" (patches: %s)\n", z);
438     exit(0);
439     }
440     if (s[i] == 'h') {
441     printf("\n%s\n\n", version);
442     printf(EGG_USAGE);
443     printf("\n");
444     exit(0);
445     }
446     } else
447     strcpy(configfile, s);
448     }
449    
450     void backup_userfile()
451     {
452     char s[150];
453    
454     putlog(LOG_MISC, "*", USERF_BACKUP);
455     strcpy(s, userfile);
456     strcat(s, "~bak");
457     copyfile(userfile, s);
458     }
459    
460     /* timer info: */
461     static int lastmin = 99;
462     static time_t then;
463     static struct tm *nowtm;
464    
465     /* rally BB, this is not QUITE as bad as it seems <G> */
466     /* ONCE A SECOND */
467     static void core_secondly()
468     {
469     static int cnt = 0;
470     int miltime;
471    
472     do_check_timers(&utimer); /* secondly timers */
473     cnt++;
474     if (cnt >= 10) { /* every 10 seconds */
475     cnt = 0;
476     check_expired_dcc();
477     if (con_chan && !backgrd) {
478     dprintf(DP_STDOUT, "\033[2J\033[1;1H");
479     tell_verbose_status(DP_STDOUT);
480     do_module_report(DP_STDOUT, 0, "server");
481     do_module_report(DP_STDOUT, 0, "channels");
482     tell_mem_status_dcc(DP_STDOUT);
483     }
484     }
485 fabian 1.10 Context;
486 segfault 1.1 nowtm = localtime(&now);
487     if (nowtm->tm_min != lastmin) {
488     int i = 0;
489    
490     /* once a minute */
491     lastmin = (lastmin + 1) % 60;
492     call_hook(HOOK_MINUTELY);
493     check_expired_ignores();
494     autolink_cycle(NULL); /* attempt autolinks */
495     /* in case for some reason more than 1 min has passed: */
496     while (nowtm->tm_min != lastmin) {
497     /* timer drift, dammit */
498     debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm->tm_min);
499 fabian 1.10 Context;
500 segfault 1.1 i++;
501     lastmin = (lastmin + 1) % 60;
502     call_hook(HOOK_MINUTELY);
503     }
504     if (i > 1)
505     putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
506     miltime = (nowtm->tm_hour * 100) + (nowtm->tm_min);
507 fabian 1.10 Context;
508 segfault 1.1 if (((int) (nowtm->tm_min / 5) * 5) == (nowtm->tm_min)) { /* 5 min */
509     call_hook(HOOK_5MINUTELY);
510     check_botnet_pings();
511 fabian 1.10 Context;
512 segfault 1.1 if (quick_logs == 0) {
513     flushlogs();
514     check_logsize();
515     }
516     if (miltime == 0) { /* at midnight */
517     char s[128];
518     int j;
519    
520     s[my_strcpy(s, ctime(&now)) - 1] = 0;
521 fabian 1.4 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
522 segfault 1.1 backup_userfile();
523     for (j = 0; j < max_logs; j++) {
524     if (logs[j].filename != NULL && logs[j].f != NULL) {
525     fclose(logs[j].f);
526     logs[j].f = NULL;
527     }
528     }
529     }
530     }
531 fabian 1.10 Context;
532 segfault 1.1 if (nowtm->tm_min == notify_users_at)
533     call_hook(HOOK_HOURLY);
534 fabian 1.10 Context; /* these no longer need checking since they are
535 segfault 1.1 * all check vs minutely settings and we only
536     * get this far on the minute */
537     if (miltime == switch_logfiles_at) {
538     call_hook(HOOK_DAILY);
539     if (!keep_all_logs) {
540     putlog(LOG_MISC, "*", MISC_LOGSWITCH);
541     for (i = 0; i < max_logs; i++)
542     if (logs[i].filename) {
543     char s[1024];
544    
545     if (logs[i].f) {
546     fclose(logs[i].f);
547     logs[i].f = NULL;
548     }
549     simple_sprintf(s, "%s.yesterday", logs[i].filename);
550     unlink(s);
551 fabian 1.2 movefile(logs[i].filename, s);
552 segfault 1.1 }
553     }
554     }
555     }
556     }
557    
558     static void core_minutely()
559     {
560 fabian 1.10 Context;
561 segfault 1.1 check_tcl_time(nowtm);
562     do_check_timers(&timer);
563 fabian 1.10 Context;
564 segfault 1.1 if (quick_logs != 0) {
565     flushlogs();
566     check_logsize();
567     }
568     }
569    
570     static void core_hourly()
571     {
572 fabian 1.10 Context;
573 segfault 1.1 write_userfile(-1);
574     }
575    
576     static void event_rehash()
577     {
578 fabian 1.10 Context;
579 segfault 1.1 check_tcl_event("rehash");
580     }
581    
582     static void event_prerehash()
583     {
584 fabian 1.10 Context;
585 segfault 1.1 check_tcl_event("prerehash");
586     }
587    
588     static void event_save()
589     {
590 fabian 1.10 Context;
591 segfault 1.1 check_tcl_event("save");
592     }
593    
594     static void event_logfile()
595     {
596 fabian 1.10 Context;
597 segfault 1.1 check_tcl_event("logfile");
598     }
599    
600 fabian 1.13 static void event_resettraffic()
601     {
602     Context;
603     otraffic_irc += otraffic_irc_today;
604     itraffic_irc += itraffic_irc_today;
605     otraffic_bn += otraffic_bn_today;
606     itraffic_bn += itraffic_bn_today;
607     otraffic_dcc += otraffic_dcc_today;
608     itraffic_dcc += itraffic_dcc_today;
609     otraffic_unknown += otraffic_unknown_today;
610     itraffic_unknown += itraffic_unknown_today;
611     otraffic_trans += otraffic_trans_today;
612     itraffic_trans += itraffic_trans_today;
613     otraffic_irc_today = otraffic_bn_today = 0;
614     otraffic_dcc_today = otraffic_unknown_today = 0;
615     itraffic_irc_today = itraffic_bn_today = 0;
616     itraffic_dcc_today = itraffic_unknown_today = 0;
617     itraffic_trans_today = 0;
618     }
619    
620 segfault 1.1 void kill_tcl();
621     extern module_entry *module_list;
622     void restart_chons();
623    
624     #ifdef STATIC
625     void check_static(char *, char *(*)());
626    
627     #include "mod/static.h"
628     #endif
629     int init_mem(), init_dcc_max(), init_userent(), init_misc(), init_bots(),
630 fabian 1.8 init_net(), init_modules(), init_tcl(int, char **),
631     init_language(int);
632 fabian 1.11
633     void patch(char *str)
634     {
635     char *p = strchr(egg_version, '+');
636    
637     if (!p)
638     p = &egg_version[strlen(egg_version)];
639     sprintf(p, "+%s", str);
640     egg_numver++;
641     sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
642     }
643 segfault 1.1
644     int main(int argc, char **argv)
645     {
646     int xx, i;
647     char buf[520], s[520];
648     FILE *f;
649     struct sigaction sv;
650     struct chanset_t *chan;
651    
652     /* initialise context list */
653     for (i = 0; i < 16; i++) {
654 fabian 1.10 Context;
655 segfault 1.1 }
656     #include "patch.h"
657     /* version info! */
658     sprintf(ver, "eggdrop v%s", egg_version);
659     sprintf(version, "Eggdrop v%s (c)1997 Robey Pointer (c)1999 Eggheads", egg_version);
660     /* now add on the patchlevel (for Tcl) */
661 fabian 1.2 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
662 segfault 1.1 strcat(egg_version, egg_xtra);
663 fabian 1.10 Context;
664 segfault 1.1 #ifdef STOP_UAC
665     {
666     int nvpair[2];
667    
668     nvpair[0] = SSIN_UACPROC;
669     nvpair[1] = UAC_NOPRINT;
670     setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
671     }
672     #endif
673     /* set up error traps: */
674     sv.sa_handler = got_bus;
675     sigemptyset(&sv.sa_mask);
676     #ifdef SA_RESETHAND
677     sv.sa_flags = SA_RESETHAND;
678     #else
679     sv.sa_flags = 0;
680     #endif
681     sigaction(SIGBUS, &sv, NULL);
682     sv.sa_handler = got_segv;
683     sigaction(SIGSEGV, &sv, NULL);
684     #ifdef SA_RESETHAND
685     sv.sa_flags = 0;
686     #endif
687     sv.sa_handler = got_fpe;
688     sigaction(SIGFPE, &sv, NULL);
689     sv.sa_handler = got_term;
690     sigaction(SIGTERM, &sv, NULL);
691     sv.sa_handler = got_hup;
692     sigaction(SIGHUP, &sv, NULL);
693     sv.sa_handler = got_quit;
694     sigaction(SIGQUIT, &sv, NULL);
695     sv.sa_handler = SIG_IGN;
696     sigaction(SIGPIPE, &sv, NULL);
697     sv.sa_handler = got_ill;
698     sigaction(SIGILL, &sv, NULL);
699     sv.sa_handler = got_alarm;
700     sigaction(SIGALRM, &sv, NULL);
701     /* initialize variables and stuff */
702     now = time(NULL);
703     chanset = NULL;
704     nowtm = localtime(&now);
705     lastmin = nowtm->tm_min;
706     srandom(now);
707     init_mem();
708     init_language(1);
709     if (argc > 1)
710     for (i = 1; i < argc; i++)
711     do_arg(argv[i]);
712     printf("\n%s\n", version);
713     init_dcc_max();
714     init_userent();
715     init_misc();
716     init_bots();
717     init_net();
718     init_modules();
719 fabian 1.8 init_tcl(argc, argv);
720 segfault 1.1 init_language(0);
721     #ifdef STATIC
722     link_statics();
723     #endif
724 fabian 1.10 Context;
725 segfault 1.1 strcpy(s, ctime(&now));
726     s[strlen(s) - 1] = 0;
727     strcpy(&s[11], &s[20]);
728     putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
729     chanprog();
730 fabian 1.10 Context;
731 segfault 1.1 if (encrypt_pass == 0) {
732     printf(MOD_NOCRYPT);
733     exit(1);
734     }
735     i = 0;
736     for (chan = chanset; chan; chan = chan->next)
737     i++;
738 fabian 1.4 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
739 segfault 1.1 botnetnick, i, count_users(userlist));
740     cache_miss = 0;
741     cache_hit = 0;
742 fabian 1.10 Context;
743 segfault 1.1 sprintf(pid_file, "pid.%s", botnetnick);
744 fabian 1.10 Context;
745 segfault 1.1 /* check for pre-existing eggdrop! */
746     f = fopen(pid_file, "r");
747     if (f != NULL) {
748     fgets(s, 10, f);
749     xx = atoi(s);
750     kill(xx, SIGCHLD); /* meaningless kill to determine if pid
751     * is used */
752     if (errno != ESRCH) {
753     printf(EGG_RUNNING1, origbotname);
754     printf(EGG_RUNNING2, pid_file);
755     exit(1);
756     }
757     }
758 fabian 1.10 Context;
759 fabian 1.5 #ifndef CYGWIN_HACKS
760 segfault 1.1 /* move into background? */
761     if (backgrd) {
762     xx = fork();
763     if (xx == -1)
764     fatal("CANNOT FORK PROCESS.", 0);
765     if (xx != 0) {
766     FILE *fp;
767    
768     /* need to attempt to write pid now, not later */
769     unlink(pid_file);
770     fp = fopen(pid_file, "w");
771     if (fp != NULL) {
772     fprintf(fp, "%u\n", xx);
773     if (fflush(fp)) {
774     /* kill bot incase a botchk is run from crond */
775     printf(EGG_NOWRITE, pid_file);
776     printf(" Try freeing some disk space\n");
777     fclose(fp);
778     unlink(pid_file);
779     exit(1);
780     }
781     fclose(fp);
782     } else
783     printf(EGG_NOWRITE, pid_file);
784     printf("Launched into the background (pid: %d)\n\n", xx);
785     #if HAVE_SETPGID
786     setpgid(xx, xx);
787     #endif
788     exit(0);
789     }
790     }
791 fabian 1.5 #endif
792 segfault 1.1 use_stderr = 0; /* stop writing to stderr now */
793     xx = getpid();
794     if ((xx != 0) && (!backgrd)) {
795     FILE *fp;
796    
797     /* write pid to file */
798     unlink(pid_file);
799     fp = fopen(pid_file, "w");
800     if (fp != NULL) {
801     fprintf(fp, "%u\n", xx);
802     if (fflush(fp)) {
803     /* let the bot live since this doesn't appear to be a botchk */
804     printf(EGG_NOWRITE, pid_file);
805     fclose(fp);
806     unlink(pid_file);
807     }
808     fclose(fp);
809     } else
810     printf(EGG_NOWRITE, pid_file);
811     }
812     if (backgrd) {
813     /* ok, try to disassociate from controlling terminal */
814     /* (finger cross) */
815 fabian 1.5 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
816 segfault 1.1 setpgid(0, 0);
817     #endif
818     /* close out stdin/out/err */
819     freopen("/dev/null", "r", stdin);
820     freopen("/dev/null", "w", stdout);
821     freopen("/dev/null", "w", stderr);
822 fabian 1.5 #ifdef CYGWIN_HACKS
823     FreeConsole();
824     #endif
825 segfault 1.1 /* tcl wants those file handles kept open */
826     /* close(0); close(1); close(2); */
827     }
828     /* terminal emulating dcc chat */
829     if ((!backgrd) && (term_z)) {
830     int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
831    
832     dcc[n].addr = iptolong(getmyip());
833     dcc[n].sock = STDOUT;
834     dcc[n].timeval = now;
835     dcc[n].u.chat->con_flags = conmask;
836     dcc[n].u.chat->strip_flags = STRIP_ALL;
837     dcc[n].status = STAT_ECHO;
838     strcpy(dcc[n].nick, "HQ");
839     strcpy(dcc[n].host, "llama@console");
840     dcc[n].user = get_user_by_handle(userlist, "HQ");
841     /* make sure there's an innocuous HQ user if needed */
842     if (!dcc[n].user) {
843     adduser(userlist, "HQ", "none", "-", USER_PARTY);
844     dcc[n].user = get_user_by_handle(userlist, "HQ");
845     }
846     setsock(STDOUT, 0); /* entry in net table */
847     dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
848     dcc_chatter(n);
849     }
850     then = now;
851     online_since = now;
852     autolink_cycle(NULL); /* hurry and connect to tandem bots */
853     add_help_reference("cmds1.help");
854     add_help_reference("cmds2.help");
855     add_help_reference("core.help");
856     add_hook(HOOK_SECONDLY, core_secondly);
857     add_hook(HOOK_MINUTELY, core_minutely);
858     add_hook(HOOK_HOURLY, core_hourly);
859     add_hook(HOOK_REHASH, event_rehash);
860     add_hook(HOOK_PRE_REHASH, event_prerehash);
861     add_hook(HOOK_USERFILE, event_save);
862     add_hook(HOOK_DAILY, event_logfile);
863 fabian 1.13 add_hook(HOOK_DAILY, event_resettraffic);
864 segfault 1.1
865     debug0("main: entering loop");
866     while (1) {
867     int socket_cleanup = 0;
868    
869 fabian 1.10 Context;
870 fabian 1.8 #if !defined(HAVE_PRE7_5_TCL) && !defined(HAVE_TCL_THREADS)
871 segfault 1.1 /* process a single tcl event */
872     Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
873 fabian 1.5 #endif
874 segfault 1.1 /* lets move some of this here, reducing the numer of actual
875     * calls to periodic_timers */
876     now = time(NULL);
877     random(); /* woop, lets really jumble things */
878     if (now != then) { /* once a second */
879     call_hook(HOOK_SECONDLY);
880     then = now;
881     }
882 fabian 1.10 Context;
883 segfault 1.1 /* only do this every so often */
884     if (!socket_cleanup) {
885     /* clean up sockets that were just left for dead */
886     for (i = 0; i < dcc_total; i++) {
887     if (dcc[i].type == &DCC_LOST) {
888     dcc[i].type = (struct dcc_table *) (dcc[i].sock);
889     lostdcc(i);
890     i--;
891     }
892     }
893     /* check for server or dcc activity */
894     dequeue_sockets();
895     socket_cleanup = 5;
896     } else
897     socket_cleanup--;
898     /* new net routines: help me mary! */
899     xx = sockgets(buf, &i);
900     if (xx >= 0) { /* non-error */
901     int idx;
902    
903 fabian 1.10 Context;
904 segfault 1.1 for (idx = 0; idx < dcc_total; idx++)
905     if (dcc[idx].sock == xx) {
906 fabian 1.13 if (dcc[idx].type && dcc[idx].type->activity) {
907     /* traffic stats */
908     if (dcc[idx].type->name) {
909     if (!strncmp(dcc[idx].type->name, "BOT", 3))
910     itraffic_bn_today += strlen(buf) + 1;
911     else if (!strcmp(dcc[idx].type->name, "SERVER"))
912     itraffic_irc_today += strlen(buf) + 1;
913     else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
914     itraffic_dcc_today += strlen(buf) + 1;
915     else if (!strncmp(dcc[idx].type->name, "FILES", 5))
916     itraffic_dcc_today += strlen(buf) + 1;
917     else if (!strcmp(dcc[idx].type->name, "SEND"))
918     itraffic_trans_today += strlen(buf) + 1;
919     else if (!strncmp(dcc[idx].type->name, "GET", 3))
920     itraffic_trans_today += strlen(buf) + 1;
921     else
922     itraffic_unknown_today += strlen(buf) + 1;
923     }
924     dcc[idx].type->activity(idx, buf, i);
925     } else
926 segfault 1.1 putlog(LOG_MISC, "*",
927     "!!! untrapped dcc activity: type %s, sock %d",
928     dcc[idx].type->name, dcc[idx].sock);
929     break;
930     }
931     } else if (xx == -1) { /* EOF from someone */
932     int idx;
933    
934     if ((i == STDOUT) && !backgrd)
935     fatal("END OF FILE ON TERMINAL", 0);
936 fabian 1.10 Context;
937 segfault 1.1 for (idx = 0; idx < dcc_total; idx++)
938     if (dcc[idx].sock == i) {
939     if (dcc[idx].type && dcc[idx].type->eof)
940     dcc[idx].type->eof(idx);
941     else {
942     putlog(LOG_MISC, "*",
943     "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
944 fabian 1.2 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
945     killsock(i);
946 segfault 1.1 lostdcc(idx);
947     }
948     idx = dcc_total + 1;
949     }
950     if (idx == dcc_total) {
951     putlog(LOG_MISC, "*",
952 fabian 1.2 "(@) EOF socket %d, not a dcc socket, not anything.", i);
953     close(i);
954     killsock(i);
955 segfault 1.1 }
956     } else if ((xx == -2) && (errno != EINTR)) { /* select() error */
957 fabian 1.10 Context;
958 segfault 1.1 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
959     for (i = 0; i < dcc_total; i++) {
960     if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
961     if (dcc[i].type == &DCC_LOST)
962     dcc[i].type = (struct dcc_table *) (dcc[i].sock);
963     putlog(LOG_MISC, "*",
964     "DCC socket %d (type %d, name '%s') expired -- pfft",
965     dcc[i].sock, dcc[i].type, dcc[i].nick);
966     killsock(dcc[i].sock);
967     lostdcc(i);
968     i--;
969     }
970     }
971     } else if (xx == (-3)) {
972     call_hook(HOOK_IDLE);
973     socket_cleanup = 0; /* if we've been idle, cleanup & flush */
974     }
975     if (do_restart) {
976     if (do_restart == -2)
977     rehash();
978     else {
979     /* unload as many modules as possible */
980     int f = 1;
981     module_entry *p;
982     Function x;
983     char xx[256];
984    
985     while (f) {
986     f = 0;
987     for (p = module_list; p != NULL; p = p->next) {
988     dependancy *d = dependancy_list;
989     int ok = 1;
990    
991     while (ok && d) {
992     if (d->needed == p)
993     ok = 0;
994     d = d->next;
995     }
996     if (ok) {
997     strcpy(xx, p->name);
998     if (module_unload(xx, origbotname) == NULL) {
999     f = 1;
1000     break;
1001     }
1002     }
1003     }
1004     }
1005     p = module_list;
1006     if (p && p->next && p->next->next)
1007     /* should be only 2 modules now -
1008     * blowfish & eggdrop */
1009     putlog(LOG_MISC, "*", MOD_STAGNANT);
1010 fabian 1.10 Context;
1011 segfault 1.1 flushlogs();
1012 fabian 1.10 Context;
1013 segfault 1.1 kill_tcl();
1014 fabian 1.8 init_tcl(argc, argv);
1015 segfault 1.1 init_language(0);
1016     x = p->funcs[MODCALL_START];
1017     x(0);
1018     rehash();
1019     restart_chons();
1020     }
1021     do_restart = 0;
1022     }
1023     }
1024     }

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