/[cvs]/eggdrop1.9/src/main.c
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Revision 1.41 - (hide annotations) (download) (as text)
Thu Aug 24 21:03:49 2000 UTC (19 years ago) by fabian
Branch: MAIN
Changes since 1.40: +3 -3 lines
File MIME type: text/x-chdr
fabian: changes to reflect release of 1.5.4

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 fabian 1.41 * $Id: main.c,v 1.40 2000/06/10 01:00:22 fabian Exp $
9 segfault 1.1 */
10 fabian 1.9 /*
11 fabian 1.14 * Copyright (C) 1997 Robey Pointer
12 fabian 1.25 * Copyright (C) 1999, 2000 Eggheads
13 fabian 1.9 *
14 fabian 1.14 * This program is free software; you can redistribute it and/or
15     * modify it under the terms of the GNU General Public License
16     * as published by the Free Software Foundation; either version 2
17     * of the License, or (at your option) any later version.
18 segfault 1.1 *
19     * This program is distributed in the hope that it will be useful,
20     * but WITHOUT ANY WARRANTY; without even the implied warranty of
21     * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
22     * GNU General Public License for more details.
23 fabian 1.9 *
24 segfault 1.1 * You should have received a copy of the GNU General Public License
25     * along with this program; if not, write to the Free Software
26 fabian 1.14 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
27     */
28     /*
29 segfault 1.1 * The author (Robey Pointer) can be reached at: robey@netcom.com
30     * NOTE: Robey is no long working on this code, there is a discussion
31     * list avaliable at eggheads@eggheads.org.
32     */
33    
34 fabian 1.28 #include "main.h"
35 fabian 1.27 #include <fcntl.h>
36 segfault 1.1 #include <time.h>
37     #include <errno.h>
38     #include <signal.h>
39     #include <netdb.h>
40     #include <setjmp.h>
41 fabian 1.27
42     #ifdef STOP_UAC /* osf/1 complains a lot */
43 segfault 1.1 #include <sys/sysinfo.h>
44     #define UAC_NOPRINT 0x00000001 /* Don't report unaligned fixups */
45     #endif
46 fabian 1.27 /* Some systems have a working sys/wait.h even though configure will
47     * decide it's not bsd compatable. Oh well.
48     */
49 segfault 1.1 #include "chan.h"
50     #include "modules.h"
51     #include "tandem.h"
52 fabian 1.38
53 fabian 1.5 #ifdef CYGWIN_HACKS
54     #include <windows.h>
55     #endif
56 segfault 1.1
57     #ifndef _POSIX_SOURCE
58 fabian 1.27 /* Solaris needs this */
59 segfault 1.1 #define _POSIX_SOURCE 1
60     #endif
61    
62 fabian 1.27 extern char origbotname[], userfile[], botnetnick[];
63     extern int dcc_total, conmask, cache_hit, cache_miss,
64     max_logs, quick_logs;
65     extern struct dcc_t *dcc;
66     extern struct userrec *userlist;
67     extern struct chanset_t *chanset;
68     extern log_t *logs;
69     extern Tcl_Interp *interp;
70     extern tcl_timer_t *timer,
71     *utimer;
72     extern jmp_buf alarmret;
73    
74 segfault 1.1
75 fabian 1.14 /*
76 segfault 1.1 * Please use the PATCH macro instead of directly altering the version
77     * string from now on (it makes it much easier to maintain patches).
78     * Also please read the README file regarding your rights to distribute
79     * modified versions of this bot.
80     */
81    
82 fabian 1.41 char egg_version[1024] = "1.5.5";
83     int egg_numver = 1050500;
84 segfault 1.1
85 fabian 1.27 char notify_new[121] = ""; /* Person to send a note to for new users */
86     int default_flags = 0; /* Default user flags and */
87     int default_uflags = 0; /* Default userdefinied flags for people
88     who say 'hello' or for .adduser */
89    
90     int backgrd = 1; /* Run in the background? */
91     int con_chan = 0; /* Foreground: constantly display channel
92     stats? */
93     int term_z = 0; /* Foreground: use the terminal as a party
94     line? */
95     char configfile[121] = "eggdrop.conf"; /* Name of the config file */
96     char helpdir[121]; /* Directory of help files (if used) */
97     char textdir[121] = ""; /* Directory for text files that get dumped */
98     int keep_all_logs = 0; /* Never erase logfiles, no matter how old
99     they are? */
100 fabian 1.40 char logfile_suffix[21] = ".%d%b%Y"; /* Format of logfile suffix. */
101 fabian 1.27 time_t online_since; /* Unix-time that the bot loaded up */
102     int make_userfile = 0; /* Using bot in make-userfile mode? (first
103     user to 'hello' becomes master) */
104     char owner[121] = ""; /* Permanent owner(s) of the bot */
105     char pid_file[40]; /* Name of the file for the pid to be
106     stored in */
107     int save_users_at = 0; /* How many minutes past the hour to
108     save the userfile? */
109     int notify_users_at = 0; /* How many minutes past the hour to
110     notify users of notes? */
111     int switch_logfiles_at = 300; /* When (military time) to switch logfiles */
112     char version[81]; /* Version info (long form) */
113     char ver[41]; /* Version info (short form) */
114     char egg_xtra[2048]; /* Patch info */
115     int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
116     int do_restart = 0; /* .restart has been called, restart asap */
117     int die_on_sighup = 0; /* die if bot receives SIGHUP */
118     int die_on_sigterm = 0; /* die if bot receives SIGTERM */
119     int resolve_timeout = 15; /* hostname/address lookup timeout */
120     time_t now; /* duh, now :) */
121    
122     /* Traffic stats
123     */
124 fabian 1.33 unsigned long otraffic_irc = 0;
125     unsigned long otraffic_irc_today = 0;
126     unsigned long otraffic_bn = 0;
127     unsigned long otraffic_bn_today = 0;
128     unsigned long otraffic_dcc = 0;
129     unsigned long otraffic_dcc_today = 0;
130     unsigned long otraffic_filesys = 0;
131     unsigned long otraffic_filesys_today = 0;
132     unsigned long otraffic_trans = 0;
133     unsigned long otraffic_trans_today = 0;
134     unsigned long otraffic_unknown = 0;
135     unsigned long otraffic_unknown_today = 0;
136     unsigned long itraffic_irc = 0;
137     unsigned long itraffic_irc_today = 0;
138     unsigned long itraffic_bn = 0;
139     unsigned long itraffic_bn_today = 0;
140     unsigned long itraffic_dcc = 0;
141     unsigned long itraffic_dcc_today = 0;
142     unsigned long itraffic_trans = 0;
143     unsigned long itraffic_trans_today = 0;
144     unsigned long itraffic_unknown = 0;
145     unsigned long itraffic_unknown_today = 0;
146 segfault 1.1
147 fabian 1.11 #ifdef DEBUG_CONTEXT
148 fabian 1.27 /* Context storage for fatal crashes */
149     char cx_file[16][30];
150     char cx_note[16][256];
151     int cx_line[16];
152     int cx_ptr = 0;
153 fabian 1.10 #endif
154 segfault 1.1
155 fabian 1.27
156 segfault 1.1 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 fabian 1.19 if (dcc[i].sock >= 0)
164 fabian 1.15 killsock(dcc[i].sock);
165 segfault 1.1 unlink(pid_file);
166     if (!recoverable)
167     exit(1);
168     }
169    
170 fabian 1.27
171 segfault 1.1 int expmem_chanprog(), expmem_users(), expmem_misc(), expmem_dccutil(),
172     expmem_botnet(), expmem_tcl(), expmem_tclhash(), expmem_net(),
173     expmem_modules(int), expmem_language(), expmem_tcldcc();
174    
175 fabian 1.27 /* For mem.c : calculate memory we SHOULD be using
176     */
177 segfault 1.1 int expected_memory()
178     {
179     int tot;
180    
181 fabian 1.10 Context;
182 segfault 1.1 tot = expmem_chanprog() + expmem_users() + expmem_misc() +
183     expmem_dccutil() + expmem_botnet() + expmem_tcl() + expmem_tclhash() +
184     expmem_net() + expmem_modules(0) + expmem_language() + expmem_tcldcc();
185     return tot;
186     }
187    
188     static void check_expired_dcc()
189     {
190     int i;
191    
192     for (i = 0; i < dcc_total; i++)
193     if (dcc[i].type && dcc[i].type->timeout_val &&
194     ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
195     if (dcc[i].type->timeout)
196     dcc[i].type->timeout(i);
197     else if (dcc[i].type->eof)
198     dcc[i].type->eof(i);
199     else
200     continue;
201 fabian 1.27 /* Only timeout 1 socket per cycle, too risky for more */
202 segfault 1.1 return;
203     }
204     }
205    
206 fabian 1.11 #ifdef DEBUG_CONTEXT
207 fabian 1.27 static int nested_debug = 0;
208 segfault 1.1
209     void write_debug()
210     {
211     int x;
212     char s[80];
213     int y;
214    
215     if (nested_debug) {
216 fabian 1.27 /* Yoicks, if we have this there's serious trouble!
217     * All of these are pretty reliable, so we'll try these.
218     *
219     * NOTE: dont try and display context-notes in here, it's
220     * _not_ safe <cybah>
221     */
222 segfault 1.1 x = creat("DEBUG.DEBUG", 0644);
223     setsock(x, SOCK_NONSOCK);
224     if (x >= 0) {
225     strcpy(s, ctime(&now));
226     dprintf(-x, "Debug (%s) written %s", ver, s);
227     dprintf(-x, "Please report problem to eggheads@eggheads.org");
228     dprintf(-x, "after a visit to http://www.eggheads.org/bugs.html");
229     dprintf(-x, "Full Patch List: %s\n", egg_xtra);
230     dprintf(-x, "Context: ");
231     cx_ptr = cx_ptr & 15;
232     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
233     dprintf(-x, "%s/%d,\n ", cx_file[y], cx_line[y]);
234     dprintf(-x, "%s/%d\n\n", cx_file[y], cx_line[y]);
235     killsock(x);
236     close(x);
237     }
238 fabian 1.27 exit(1); /* Dont even try & tell people about, that may
239     have caused the fault last time. */
240 segfault 1.1 } else
241     nested_debug = 1;
242     putlog(LOG_MISC, "*", "* Last context: %s/%d [%s]", cx_file[cx_ptr],
243     cx_line[cx_ptr], cx_note[cx_ptr][0] ? cx_note[cx_ptr] : "");
244 fabian 1.2 putlog(LOG_MISC, "*", "* Please REPORT this BUG!");
245     putlog(LOG_MISC, "*", "* Check doc/BUG-REPORT on how to do so.");
246 fabian 1.9 x = creat("DEBUG", 0644);
247 segfault 1.1 setsock(x, SOCK_NONSOCK);
248     if (x < 0) {
249     putlog(LOG_MISC, "*", "* Failed to write DEBUG");
250     } else {
251     strcpy(s, ctime(&now));
252     dprintf(-x, "Debug (%s) written %s", ver, s);
253     dprintf(-x, "Full Patch List: %s\n", egg_xtra);
254     #ifdef STATIC
255     dprintf(-x, "STATICALLY LINKED\n");
256     #endif
257     strcpy(s, "info library");
258     if (interp && (Tcl_Eval(interp, s) == TCL_OK))
259     dprintf(-x, "Using tcl library: %s (header version %s)\n",
260     interp->result, TCL_VERSION);
261     dprintf(-x, "Compile flags: %s\n", CCFLAGS);
262     dprintf(-x, "Link flags : %s\n", LDFLAGS);
263     dprintf(-x, "Strip flags : %s\n", STRIPFLAGS);
264     dprintf(-x, "Context: ");
265     cx_ptr = cx_ptr & 15;
266     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
267     dprintf(-x, "%s/%d, [%s]\n ", cx_file[y], cx_line[y],
268     (cx_note[y][0]) ? cx_note[y] : "");
269     dprintf(-x, "%s/%d [%s]\n\n", cx_file[cx_ptr], cx_line[cx_ptr],
270     (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
271     tell_dcc(-x);
272     dprintf(-x, "\n");
273     debug_mem_to_dcc(-x);
274     killsock(x);
275     close(x);
276     putlog(LOG_MISC, "*", "* Wrote DEBUG");
277     }
278     }
279 fabian 1.10 #endif
280 fabian 1.2
281 segfault 1.1 static void got_bus(int z)
282     {
283 fabian 1.11 #ifdef DEBUG_CONTEXT
284 segfault 1.1 write_debug();
285 fabian 1.10 #endif
286 segfault 1.1 fatal("BUS ERROR -- CRASHING!", 1);
287     #ifdef SA_RESETHAND
288     kill(getpid(), SIGBUS);
289     #else
290     exit(1);
291     #endif
292     }
293    
294     static void got_segv(int z)
295     {
296 fabian 1.11 #ifdef DEBUG_CONTEXT
297 segfault 1.1 write_debug();
298 fabian 1.10 #endif
299 segfault 1.1 fatal("SEGMENT VIOLATION -- CRASHING!", 1);
300     #ifdef SA_RESETHAND
301     kill(getpid(), SIGSEGV);
302     #else
303     exit(1);
304     #endif
305     }
306    
307     static void got_fpe(int z)
308     {
309 fabian 1.11 #ifdef DEBUG_CONTEXT
310 segfault 1.1 write_debug();
311 fabian 1.10 #endif
312 segfault 1.1 fatal("FLOATING POINT ERROR -- CRASHING!", 0);
313     }
314    
315     static void got_term(int z)
316     {
317     write_userfile(-1);
318     check_tcl_event("sigterm");
319     if (die_on_sigterm) {
320     botnet_send_chat(-1, botnetnick, "ACK, I've been terminated!");
321     fatal("TERMINATE SIGNAL -- SIGNING OFF", 0);
322     } else {
323     putlog(LOG_MISC, "*", "RECEIVED TERMINATE SIGNAL (IGNORING)");
324     }
325     }
326    
327     static void got_quit(int z)
328     {
329     check_tcl_event("sigquit");
330     putlog(LOG_MISC, "*", "RECEIVED QUIT SIGNAL (IGNORING)");
331     return;
332     }
333    
334     static void got_hup(int z)
335     {
336     write_userfile(-1);
337     check_tcl_event("sighup");
338     if (die_on_sighup) {
339     fatal("HANGUP SIGNAL -- SIGNING OFF", 0);
340     } else
341     putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
342     do_restart = -2;
343     return;
344     }
345    
346 fabian 1.27 /* A call to resolver (gethostbyname, etc) timed out
347     */
348 segfault 1.1 static void got_alarm(int z)
349     {
350     longjmp(alarmret, 1);
351 fabian 1.27
352     /* -Never reached- */
353 segfault 1.1 }
354    
355 fabian 1.27 /* Got ILL signal -- log context and continue
356     */
357 segfault 1.1 static void got_ill(int z)
358     {
359     check_tcl_event("sigill");
360 fabian 1.11 #ifdef DEBUG_CONTEXT
361 segfault 1.1 putlog(LOG_MISC, "*", "* Context: %s/%d [%s]", cx_file[cx_ptr],
362     cx_line[cx_ptr], (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
363 fabian 1.5 #endif
364 segfault 1.1 }
365    
366 fabian 1.11 #ifdef DEBUG_CONTEXT
367 fabian 1.10 /* Context */
368     void eggContext(char *file, int line, char *module)
369     {
370 fabian 1.39 char x[31], *p;
371 fabian 1.10
372 fabian 1.39 p = strrchr(file, '/');
373     if (!module) {
374     strncpy(x, p ? p + 1 : file, 30);
375     x[30] = 0;
376     } else
377     egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
378 fabian 1.10 cx_ptr = ((cx_ptr + 1) & 15);
379     strcpy(cx_file[cx_ptr], x);
380     cx_line[cx_ptr] = line;
381     cx_note[cx_ptr][0] = 0;
382     }
383    
384 fabian 1.27 /* Called from the ContextNote macro.
385     */
386 fabian 1.10 void eggContextNote(char *file, int line, char *module, char *note)
387     {
388 fabian 1.39 char x[31], *p;
389 fabian 1.10
390 fabian 1.39 p = strrchr(file, '/');
391     if (!module) {
392     strncpy(x, p ? p + 1 : file, 30);
393     x[30] = 0;
394     } else
395     egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
396 fabian 1.10 cx_ptr = ((cx_ptr + 1) & 15);
397     strcpy(cx_file[cx_ptr], x);
398     cx_line[cx_ptr] = line;
399     strncpy(cx_note[cx_ptr], note, 255);
400     cx_note[cx_ptr][255] = 0;
401     }
402 fabian 1.11 #endif
403 fabian 1.10
404 fabian 1.11 #ifdef DEBUG_ASSERT
405 fabian 1.27 /* Called from the Assert macro.
406     */
407 fabian 1.10 void eggAssert(char *file, int line, char *module, int expr)
408     {
409     if (!(expr)) {
410 fabian 1.11 #ifdef DEBUG_CONTEXT
411 fabian 1.10 write_debug();
412 fabian 1.11 #endif
413 fabian 1.10 if (!module) {
414     putlog(LOG_MISC, "*", "* In file %s, line %u", file, line);
415     } else {
416     putlog(LOG_MISC, "*", "* In file %s:%s, line %u", module, file, line);
417     }
418     fatal("ASSERT FAILED -- CRASHING!", 1);
419     }
420     }
421     #endif
422    
423 segfault 1.1 static void do_arg(char *s)
424     {
425     int i;
426    
427     if (s[0] == '-')
428     for (i = 1; i < strlen(s); i++) {
429     if (s[i] == 'n')
430     backgrd = 0;
431     if (s[i] == 'c') {
432     con_chan = 1;
433     term_z = 0;
434     }
435     if (s[i] == 't') {
436     con_chan = 0;
437     term_z = 1;
438     }
439     if (s[i] == 'm')
440     make_userfile = 1;
441     if (s[i] == 'v') {
442     char x[256], *z = x;
443    
444     strcpy(x, egg_version);
445     newsplit(&z);
446     newsplit(&z);
447     printf("%s\n", version);
448     if (z[0])
449     printf(" (patches: %s)\n", z);
450     exit(0);
451     }
452     if (s[i] == 'h') {
453     printf("\n%s\n\n", version);
454     printf(EGG_USAGE);
455     printf("\n");
456     exit(0);
457     }
458     } else
459     strcpy(configfile, s);
460     }
461    
462     void backup_userfile()
463     {
464     char s[150];
465    
466     putlog(LOG_MISC, "*", USERF_BACKUP);
467     strcpy(s, userfile);
468     strcat(s, "~bak");
469     copyfile(userfile, s);
470     }
471    
472 fabian 1.27 /* Timer info */
473     static int lastmin = 99;
474     static time_t then;
475     static struct tm nowtm;
476 segfault 1.1
477 fabian 1.34 /* Called once a second.
478     *
479     * Note: Try to not put any Context lines in here (guppy 21Mar2000).
480 fabian 1.27 */
481 segfault 1.1 static void core_secondly()
482     {
483     static int cnt = 0;
484     int miltime;
485    
486 fabian 1.27 do_check_timers(&utimer); /* Secondly timers */
487 segfault 1.1 cnt++;
488 fabian 1.27 if (cnt >= 10) { /* Every 10 seconds */
489 segfault 1.1 cnt = 0;
490     check_expired_dcc();
491     if (con_chan && !backgrd) {
492     dprintf(DP_STDOUT, "\033[2J\033[1;1H");
493     tell_verbose_status(DP_STDOUT);
494     do_module_report(DP_STDOUT, 0, "server");
495     do_module_report(DP_STDOUT, 0, "channels");
496     tell_mem_status_dcc(DP_STDOUT);
497     }
498     }
499 fabian 1.35 egg_memcpy(&nowtm, localtime(&now), sizeof(struct tm));
500 fabian 1.17 if (nowtm.tm_min != lastmin) {
501 segfault 1.1 int i = 0;
502    
503 fabian 1.27 /* Once a minute */
504 segfault 1.1 lastmin = (lastmin + 1) % 60;
505     call_hook(HOOK_MINUTELY);
506     check_expired_ignores();
507 fabian 1.27 autolink_cycle(NULL); /* Attempt autolinks */
508     /* In case for some reason more than 1 min has passed: */
509 fabian 1.17 while (nowtm.tm_min != lastmin) {
510 fabian 1.27 /* Timer drift, dammit */
511 fabian 1.17 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
512 segfault 1.1 i++;
513     lastmin = (lastmin + 1) % 60;
514     call_hook(HOOK_MINUTELY);
515     }
516     if (i > 1)
517     putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
518 fabian 1.17 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
519     if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
520 segfault 1.1 call_hook(HOOK_5MINUTELY);
521     check_botnet_pings();
522     if (quick_logs == 0) {
523     flushlogs();
524     check_logsize();
525     }
526 fabian 1.27 if (miltime == 0) { /* At midnight */
527 segfault 1.1 char s[128];
528     int j;
529    
530     s[my_strcpy(s, ctime(&now)) - 1] = 0;
531 fabian 1.4 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
532 segfault 1.1 backup_userfile();
533     for (j = 0; j < max_logs; j++) {
534     if (logs[j].filename != NULL && logs[j].f != NULL) {
535     fclose(logs[j].f);
536     logs[j].f = NULL;
537     }
538     }
539     }
540     }
541 fabian 1.17 if (nowtm.tm_min == notify_users_at)
542 segfault 1.1 call_hook(HOOK_HOURLY);
543 fabian 1.27 /* These no longer need checking since they are all check vs minutely
544     * settings and we only get this far on the minute.
545     */
546 segfault 1.1 if (miltime == switch_logfiles_at) {
547     call_hook(HOOK_DAILY);
548     if (!keep_all_logs) {
549     putlog(LOG_MISC, "*", MISC_LOGSWITCH);
550     for (i = 0; i < max_logs; i++)
551     if (logs[i].filename) {
552     char s[1024];
553    
554     if (logs[i].f) {
555     fclose(logs[i].f);
556     logs[i].f = NULL;
557     }
558     simple_sprintf(s, "%s.yesterday", logs[i].filename);
559     unlink(s);
560 fabian 1.2 movefile(logs[i].filename, s);
561 segfault 1.1 }
562     }
563     }
564     }
565     }
566    
567     static void core_minutely()
568     {
569 fabian 1.17 check_tcl_time(&nowtm);
570 segfault 1.1 do_check_timers(&timer);
571     if (quick_logs != 0) {
572     flushlogs();
573     check_logsize();
574     }
575     }
576    
577     static void core_hourly()
578     {
579 fabian 1.10 Context;
580 segfault 1.1 write_userfile(-1);
581     }
582    
583     static void event_rehash()
584     {
585 fabian 1.10 Context;
586 segfault 1.1 check_tcl_event("rehash");
587     }
588    
589     static void event_prerehash()
590     {
591 fabian 1.10 Context;
592 segfault 1.1 check_tcl_event("prerehash");
593     }
594    
595     static void event_save()
596     {
597 fabian 1.10 Context;
598 segfault 1.1 check_tcl_event("save");
599     }
600    
601     static void event_logfile()
602     {
603 fabian 1.10 Context;
604 segfault 1.1 check_tcl_event("logfile");
605     }
606    
607 fabian 1.13 static void event_resettraffic()
608     {
609     Context;
610     otraffic_irc += otraffic_irc_today;
611     itraffic_irc += itraffic_irc_today;
612     otraffic_bn += otraffic_bn_today;
613     itraffic_bn += itraffic_bn_today;
614     otraffic_dcc += otraffic_dcc_today;
615     itraffic_dcc += itraffic_dcc_today;
616     otraffic_unknown += otraffic_unknown_today;
617     itraffic_unknown += itraffic_unknown_today;
618     otraffic_trans += otraffic_trans_today;
619     itraffic_trans += itraffic_trans_today;
620     otraffic_irc_today = otraffic_bn_today = 0;
621     otraffic_dcc_today = otraffic_unknown_today = 0;
622     itraffic_irc_today = itraffic_bn_today = 0;
623     itraffic_dcc_today = itraffic_unknown_today = 0;
624 fabian 1.18 itraffic_trans_today = otraffic_trans_today = 0;
625 fabian 1.13 }
626    
627 segfault 1.1 void kill_tcl();
628     extern module_entry *module_list;
629     void restart_chons();
630    
631     #ifdef STATIC
632     void check_static(char *, char *(*)());
633    
634     #include "mod/static.h"
635     #endif
636     int init_mem(), init_dcc_max(), init_userent(), init_misc(), init_bots(),
637 fabian 1.8 init_net(), init_modules(), init_tcl(int, char **),
638     init_language(int);
639 fabian 1.11
640     void patch(char *str)
641     {
642     char *p = strchr(egg_version, '+');
643    
644     if (!p)
645     p = &egg_version[strlen(egg_version)];
646     sprintf(p, "+%s", str);
647     egg_numver++;
648     sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
649     }
650 segfault 1.1
651     int main(int argc, char **argv)
652     {
653     int xx, i;
654     char buf[520], s[520];
655     FILE *f;
656     struct sigaction sv;
657     struct chanset_t *chan;
658    
659 fabian 1.15 #ifdef DEBUG_MEM
660 fabian 1.21 /* Make sure it can write core, if you make debug. Else it's pretty
661     * useless (dw)
662     */
663 fabian 1.15 {
664     #include <sys/resource.h>
665     struct rlimit cdlim;
666 fabian 1.21
667 fabian 1.15 cdlim.rlim_cur = RLIM_INFINITY;
668     cdlim.rlim_max = RLIM_INFINITY;
669 fabian 1.32 setrlimit(RLIMIT_CORE, &cdlim);
670 fabian 1.15 }
671     #endif
672    
673 fabian 1.27 /* Initialise context list */
674 fabian 1.32 for (i = 0; i < 16; i++)
675 fabian 1.10 Context;
676 fabian 1.32
677 segfault 1.1 #include "patch.h"
678 fabian 1.27 /* Version info! */
679 segfault 1.1 sprintf(ver, "eggdrop v%s", egg_version);
680 fabian 1.25 sprintf(version, "Eggdrop v%s (c)1997 Robey Pointer (c)1999, 2000 Eggheads",
681     egg_version);
682 fabian 1.27 /* Now add on the patchlevel (for Tcl) */
683 fabian 1.2 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
684 segfault 1.1 strcat(egg_version, egg_xtra);
685 fabian 1.10 Context;
686 segfault 1.1 #ifdef STOP_UAC
687     {
688     int nvpair[2];
689    
690     nvpair[0] = SSIN_UACPROC;
691     nvpair[1] = UAC_NOPRINT;
692     setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
693     }
694     #endif
695 fabian 1.27
696     /* Set up error traps: */
697 segfault 1.1 sv.sa_handler = got_bus;
698     sigemptyset(&sv.sa_mask);
699     #ifdef SA_RESETHAND
700     sv.sa_flags = SA_RESETHAND;
701     #else
702     sv.sa_flags = 0;
703     #endif
704     sigaction(SIGBUS, &sv, NULL);
705     sv.sa_handler = got_segv;
706     sigaction(SIGSEGV, &sv, NULL);
707     #ifdef SA_RESETHAND
708     sv.sa_flags = 0;
709     #endif
710     sv.sa_handler = got_fpe;
711     sigaction(SIGFPE, &sv, NULL);
712     sv.sa_handler = got_term;
713     sigaction(SIGTERM, &sv, NULL);
714     sv.sa_handler = got_hup;
715     sigaction(SIGHUP, &sv, NULL);
716     sv.sa_handler = got_quit;
717     sigaction(SIGQUIT, &sv, NULL);
718     sv.sa_handler = SIG_IGN;
719     sigaction(SIGPIPE, &sv, NULL);
720     sv.sa_handler = got_ill;
721     sigaction(SIGILL, &sv, NULL);
722     sv.sa_handler = got_alarm;
723     sigaction(SIGALRM, &sv, NULL);
724 fabian 1.27
725     /* Initialize variables and stuff */
726 segfault 1.1 now = time(NULL);
727     chanset = NULL;
728 fabian 1.35 egg_memcpy(&nowtm, localtime(&now), sizeof(struct tm));
729 fabian 1.17 lastmin = nowtm.tm_min;
730 segfault 1.1 srandom(now);
731     init_mem();
732     init_language(1);
733     if (argc > 1)
734     for (i = 1; i < argc; i++)
735     do_arg(argv[i]);
736     printf("\n%s\n", version);
737     init_dcc_max();
738     init_userent();
739     init_misc();
740     init_bots();
741     init_net();
742     init_modules();
743 fabian 1.8 init_tcl(argc, argv);
744 segfault 1.1 init_language(0);
745     #ifdef STATIC
746     link_statics();
747     #endif
748 fabian 1.10 Context;
749 segfault 1.1 strcpy(s, ctime(&now));
750     s[strlen(s) - 1] = 0;
751     strcpy(&s[11], &s[20]);
752     putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
753     chanprog();
754 fabian 1.10 Context;
755 segfault 1.1 if (encrypt_pass == 0) {
756     printf(MOD_NOCRYPT);
757     exit(1);
758     }
759     i = 0;
760     for (chan = chanset; chan; chan = chan->next)
761     i++;
762 fabian 1.4 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
763 segfault 1.1 botnetnick, i, count_users(userlist));
764     cache_miss = 0;
765     cache_hit = 0;
766     sprintf(pid_file, "pid.%s", botnetnick);
767 fabian 1.10 Context;
768 fabian 1.27
769     /* Check for pre-existing eggdrop! */
770 segfault 1.1 f = fopen(pid_file, "r");
771     if (f != NULL) {
772     fgets(s, 10, f);
773     xx = atoi(s);
774 fabian 1.27 kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
775     is used */
776 segfault 1.1 if (errno != ESRCH) {
777     printf(EGG_RUNNING1, origbotname);
778     printf(EGG_RUNNING2, pid_file);
779     exit(1);
780     }
781     }
782 fabian 1.10 Context;
783 fabian 1.27
784     /* Move into background? */
785 segfault 1.1 if (backgrd) {
786 fabian 1.38 #ifndef CYGWIN_HACKS
787 segfault 1.1 xx = fork();
788     if (xx == -1)
789     fatal("CANNOT FORK PROCESS.", 0);
790     if (xx != 0) {
791     FILE *fp;
792    
793 fabian 1.27 /* Need to attempt to write pid now, not later */
794 segfault 1.1 unlink(pid_file);
795     fp = fopen(pid_file, "w");
796     if (fp != NULL) {
797     fprintf(fp, "%u\n", xx);
798     if (fflush(fp)) {
799 fabian 1.27 /* Kill bot incase a botchk is run from crond */
800 segfault 1.1 printf(EGG_NOWRITE, pid_file);
801     printf(" Try freeing some disk space\n");
802     fclose(fp);
803     unlink(pid_file);
804     exit(1);
805     }
806     fclose(fp);
807     } else
808     printf(EGG_NOWRITE, pid_file);
809     printf("Launched into the background (pid: %d)\n\n", xx);
810     #if HAVE_SETPGID
811     setpgid(xx, xx);
812     #endif
813     exit(0);
814     }
815 fabian 1.38 } else { /* !backgrd */
816 fabian 1.5 #endif
817 fabian 1.38 xx = getpid();
818     if (xx != 0) {
819     FILE *fp;
820    
821     /* Write pid to file */
822     unlink(pid_file);
823     fp = fopen(pid_file, "w");
824     if (fp != NULL) {
825     fprintf(fp, "%u\n", xx);
826     if (fflush(fp)) {
827     /* Let the bot live since this doesn't appear to be a botchk */
828     printf(EGG_NOWRITE, pid_file);
829     fclose(fp);
830     unlink(pid_file);
831     } else
832     fclose(fp);
833 fabian 1.27 } else
834 fabian 1.38 printf(EGG_NOWRITE, pid_file);
835     #ifdef CYGWIN_HACKS
836     printf("Launched (pid: %d)\n\n", xx);
837     #endif
838     }
839 segfault 1.1 }
840 fabian 1.38
841     use_stderr = 0; /* Stop writing to stderr now */
842 segfault 1.1 if (backgrd) {
843 fabian 1.27 /* Ok, try to disassociate from controlling terminal (finger cross) */
844 fabian 1.5 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
845 segfault 1.1 setpgid(0, 0);
846     #endif
847 fabian 1.38 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
848 segfault 1.1 freopen("/dev/null", "r", stdin);
849     freopen("/dev/null", "w", stdout);
850     freopen("/dev/null", "w", stderr);
851 fabian 1.5 #ifdef CYGWIN_HACKS
852     FreeConsole();
853     #endif
854 segfault 1.1 }
855 fabian 1.27
856     /* Terminal emulating dcc chat */
857 segfault 1.1 if ((!backgrd) && (term_z)) {
858     int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
859    
860     dcc[n].addr = iptolong(getmyip());
861     dcc[n].sock = STDOUT;
862     dcc[n].timeval = now;
863     dcc[n].u.chat->con_flags = conmask;
864     dcc[n].u.chat->strip_flags = STRIP_ALL;
865     dcc[n].status = STAT_ECHO;
866     strcpy(dcc[n].nick, "HQ");
867     strcpy(dcc[n].host, "llama@console");
868     dcc[n].user = get_user_by_handle(userlist, "HQ");
869 fabian 1.27 /* Make sure there's an innocuous HQ user if needed */
870 segfault 1.1 if (!dcc[n].user) {
871 fabian 1.24 userlist = adduser(userlist, "HQ", "none", "-", USER_PARTY);
872 segfault 1.1 dcc[n].user = get_user_by_handle(userlist, "HQ");
873     }
874 fabian 1.27 setsock(STDOUT, 0); /* Entry in net table */
875 segfault 1.1 dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
876     dcc_chatter(n);
877     }
878 fabian 1.27
879 segfault 1.1 then = now;
880     online_since = now;
881 fabian 1.27 autolink_cycle(NULL); /* Hurry and connect to tandem bots */
882 segfault 1.1 add_help_reference("cmds1.help");
883     add_help_reference("cmds2.help");
884     add_help_reference("core.help");
885 fabian 1.22 add_hook(HOOK_SECONDLY, (Function) core_secondly);
886     add_hook(HOOK_MINUTELY, (Function) core_minutely);
887     add_hook(HOOK_HOURLY, (Function) core_hourly);
888     add_hook(HOOK_REHASH, (Function) event_rehash);
889     add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
890     add_hook(HOOK_USERFILE, (Function) event_save);
891     add_hook(HOOK_DAILY, (Function) event_logfile);
892     add_hook(HOOK_DAILY, (Function) event_resettraffic);
893 segfault 1.1
894     debug0("main: entering loop");
895     while (1) {
896     int socket_cleanup = 0;
897    
898 fabian 1.10 Context;
899 fabian 1.8 #if !defined(HAVE_PRE7_5_TCL) && !defined(HAVE_TCL_THREADS)
900 fabian 1.27 /* Process a single tcl event */
901 segfault 1.1 Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
902 fabian 1.5 #endif
903 fabian 1.27 /* Lets move some of this here, reducing the numer of actual
904     * calls to periodic_timers
905     */
906 segfault 1.1 now = time(NULL);
907 fabian 1.27 random(); /* Woop, lets really jumble things */
908     if (now != then) { /* Once a second */
909 segfault 1.1 call_hook(HOOK_SECONDLY);
910     then = now;
911     }
912 fabian 1.10 Context;
913 fabian 1.27 /* Only do this every so often */
914 segfault 1.1 if (!socket_cleanup) {
915 fabian 1.16 dcc_remove_lost();
916 fabian 1.27 /* Check for server or dcc activity */
917 segfault 1.1 dequeue_sockets();
918     socket_cleanup = 5;
919     } else
920     socket_cleanup--;
921     xx = sockgets(buf, &i);
922 fabian 1.27 if (xx >= 0) { /* Non-error */
923 segfault 1.1 int idx;
924    
925 fabian 1.10 Context;
926 segfault 1.1 for (idx = 0; idx < dcc_total; idx++)
927     if (dcc[idx].sock == xx) {
928 fabian 1.13 if (dcc[idx].type && dcc[idx].type->activity) {
929 fabian 1.27 /* Traffic stats */
930     if (dcc[idx].type->name) {
931     if (!strncmp(dcc[idx].type->name, "BOT", 3))
932     itraffic_bn_today += strlen(buf) + 1;
933     else if (!strcmp(dcc[idx].type->name, "SERVER"))
934     itraffic_irc_today += strlen(buf) + 1;
935     else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
936     itraffic_dcc_today += strlen(buf) + 1;
937     else if (!strncmp(dcc[idx].type->name, "FILES", 5))
938     itraffic_dcc_today += strlen(buf) + 1;
939     else if (!strcmp(dcc[idx].type->name, "SEND"))
940     itraffic_trans_today += strlen(buf) + 1;
941     else if (!strncmp(dcc[idx].type->name, "GET", 3))
942     itraffic_trans_today += strlen(buf) + 1;
943     else
944     itraffic_unknown_today += strlen(buf) + 1;
945     }
946     dcc[idx].type->activity(idx, buf, i);
947 fabian 1.13 } else
948 segfault 1.1 putlog(LOG_MISC, "*",
949     "!!! untrapped dcc activity: type %s, sock %d",
950     dcc[idx].type->name, dcc[idx].sock);
951     break;
952     }
953     } else if (xx == -1) { /* EOF from someone */
954     int idx;
955    
956     if ((i == STDOUT) && !backgrd)
957     fatal("END OF FILE ON TERMINAL", 0);
958 fabian 1.10 Context;
959 segfault 1.1 for (idx = 0; idx < dcc_total; idx++)
960     if (dcc[idx].sock == i) {
961     if (dcc[idx].type && dcc[idx].type->eof)
962     dcc[idx].type->eof(idx);
963     else {
964     putlog(LOG_MISC, "*",
965     "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
966 fabian 1.2 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
967     killsock(i);
968 segfault 1.1 lostdcc(idx);
969     }
970     idx = dcc_total + 1;
971     }
972     if (idx == dcc_total) {
973     putlog(LOG_MISC, "*",
974 fabian 1.2 "(@) EOF socket %d, not a dcc socket, not anything.", i);
975     close(i);
976     killsock(i);
977 segfault 1.1 }
978     } else if ((xx == -2) && (errno != EINTR)) { /* select() error */
979 fabian 1.10 Context;
980 segfault 1.1 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
981     for (i = 0; i < dcc_total; i++) {
982     if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
983     putlog(LOG_MISC, "*",
984     "DCC socket %d (type %d, name '%s') expired -- pfft",
985     dcc[i].sock, dcc[i].type, dcc[i].nick);
986     killsock(dcc[i].sock);
987     lostdcc(i);
988     i--;
989     }
990     }
991     } else if (xx == (-3)) {
992     call_hook(HOOK_IDLE);
993 fabian 1.27 socket_cleanup = 0; /* If we've been idle, cleanup & flush */
994 segfault 1.1 }
995 fabian 1.27
996 segfault 1.1 if (do_restart) {
997     if (do_restart == -2)
998     rehash();
999     else {
1000 fabian 1.27 /* Unload as many modules as possible */
1001 segfault 1.1 int f = 1;
1002     module_entry *p;
1003     Function x;
1004     char xx[256];
1005    
1006     while (f) {
1007     f = 0;
1008     for (p = module_list; p != NULL; p = p->next) {
1009     dependancy *d = dependancy_list;
1010     int ok = 1;
1011    
1012     while (ok && d) {
1013     if (d->needed == p)
1014     ok = 0;
1015     d = d->next;
1016     }
1017     if (ok) {
1018     strcpy(xx, p->name);
1019     if (module_unload(xx, origbotname) == NULL) {
1020     f = 1;
1021     break;
1022     }
1023     }
1024     }
1025     }
1026     p = module_list;
1027     if (p && p->next && p->next->next)
1028 fabian 1.27 /* Should be only 2 modules now -
1029     * blowfish & eggdrop
1030     */
1031 segfault 1.1 putlog(LOG_MISC, "*", MOD_STAGNANT);
1032 fabian 1.10 Context;
1033 segfault 1.1 flushlogs();
1034 fabian 1.10 Context;
1035 segfault 1.1 kill_tcl();
1036 fabian 1.8 init_tcl(argc, argv);
1037 segfault 1.1 init_language(0);
1038 fabian 1.30 /* We expect the encryption module as the current module pointed
1039     * to by `module_list'.
1040     */
1041 segfault 1.1 x = p->funcs[MODCALL_START];
1042 fabian 1.30 /* `NULL' indicates that we just recently restarted. The module
1043     * is expected to re-initialise as needed.
1044     */
1045     x(NULL);
1046 segfault 1.1 rehash();
1047     restart_chons();
1048     }
1049     do_restart = 0;
1050     }
1051     }
1052     }

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