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

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Revision 1.43 - (hide annotations) (download) (as text)
Wed Sep 27 19:48:54 2000 UTC (19 years ago) by fabian
Branch: MAIN
Changes since 1.42: +16 -31 lines
File MIME type: text/x-chdr
fabian: applied threaded_libtcl_support patch

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 1.43 * $Id: main.c,v 1.42 2000/09/27 19:40:43 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 1.43 #include "bg.h"
53 fabian 1.38
54 fabian 1.5 #ifdef CYGWIN_HACKS
55     #include <windows.h>
56     #endif
57 segfault 1.1
58     #ifndef _POSIX_SOURCE
59 fabian 1.27 /* Solaris needs this */
60 segfault 1.1 #define _POSIX_SOURCE 1
61     #endif
62    
63 fabian 1.27 extern char origbotname[], userfile[], botnetnick[];
64     extern int dcc_total, conmask, cache_hit, cache_miss,
65     max_logs, quick_logs;
66     extern struct dcc_t *dcc;
67     extern struct userrec *userlist;
68     extern struct chanset_t *chanset;
69     extern log_t *logs;
70     extern Tcl_Interp *interp;
71     extern tcl_timer_t *timer,
72     *utimer;
73     extern jmp_buf alarmret;
74    
75 segfault 1.1
76 fabian 1.14 /*
77 segfault 1.1 * Please use the PATCH macro instead of directly altering the version
78     * string from now on (it makes it much easier to maintain patches).
79     * Also please read the README file regarding your rights to distribute
80     * modified versions of this bot.
81     */
82    
83 fabian 1.41 char egg_version[1024] = "1.5.5";
84     int egg_numver = 1050500;
85 segfault 1.1
86 fabian 1.27 char notify_new[121] = ""; /* Person to send a note to for new users */
87     int default_flags = 0; /* Default user flags and */
88     int default_uflags = 0; /* Default userdefinied flags for people
89     who say 'hello' or for .adduser */
90    
91     int backgrd = 1; /* Run in the background? */
92     int con_chan = 0; /* Foreground: constantly display channel
93     stats? */
94     int term_z = 0; /* Foreground: use the terminal as a party
95     line? */
96     char configfile[121] = "eggdrop.conf"; /* Name of the config file */
97     char helpdir[121]; /* Directory of help files (if used) */
98     char textdir[121] = ""; /* Directory for text files that get dumped */
99     int keep_all_logs = 0; /* Never erase logfiles, no matter how old
100     they are? */
101 fabian 1.40 char logfile_suffix[21] = ".%d%b%Y"; /* Format of logfile suffix. */
102 fabian 1.27 time_t online_since; /* Unix-time that the bot loaded up */
103     int make_userfile = 0; /* Using bot in make-userfile mode? (first
104     user to 'hello' becomes master) */
105     char owner[121] = ""; /* Permanent owner(s) of the bot */
106     char pid_file[40]; /* Name of the file for the pid to be
107     stored in */
108     int save_users_at = 0; /* How many minutes past the hour to
109     save the userfile? */
110     int notify_users_at = 0; /* How many minutes past the hour to
111     notify users of notes? */
112     int switch_logfiles_at = 300; /* When (military time) to switch logfiles */
113     char version[81]; /* Version info (long form) */
114     char ver[41]; /* Version info (short form) */
115     char egg_xtra[2048]; /* Patch info */
116     int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
117     int do_restart = 0; /* .restart has been called, restart asap */
118     int die_on_sighup = 0; /* die if bot receives SIGHUP */
119     int die_on_sigterm = 0; /* die if bot receives SIGTERM */
120     int resolve_timeout = 15; /* hostname/address lookup timeout */
121     time_t now; /* duh, now :) */
122    
123     /* Traffic stats
124     */
125 fabian 1.33 unsigned long otraffic_irc = 0;
126     unsigned long otraffic_irc_today = 0;
127     unsigned long otraffic_bn = 0;
128     unsigned long otraffic_bn_today = 0;
129     unsigned long otraffic_dcc = 0;
130     unsigned long otraffic_dcc_today = 0;
131     unsigned long otraffic_filesys = 0;
132     unsigned long otraffic_filesys_today = 0;
133     unsigned long otraffic_trans = 0;
134     unsigned long otraffic_trans_today = 0;
135     unsigned long otraffic_unknown = 0;
136     unsigned long otraffic_unknown_today = 0;
137     unsigned long itraffic_irc = 0;
138     unsigned long itraffic_irc_today = 0;
139     unsigned long itraffic_bn = 0;
140     unsigned long itraffic_bn_today = 0;
141     unsigned long itraffic_dcc = 0;
142     unsigned long itraffic_dcc_today = 0;
143     unsigned long itraffic_trans = 0;
144     unsigned long itraffic_trans_today = 0;
145     unsigned long itraffic_unknown = 0;
146     unsigned long itraffic_unknown_today = 0;
147 segfault 1.1
148 fabian 1.11 #ifdef DEBUG_CONTEXT
149 fabian 1.27 /* 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 fabian 1.27
157 segfault 1.1 void fatal(char *s, int recoverable)
158     {
159     int i;
160    
161     putlog(LOG_MISC, "*", "* %s", s);
162     flushlogs();
163     for (i = 0; i < dcc_total; i++)
164 fabian 1.19 if (dcc[i].sock >= 0)
165 fabian 1.15 killsock(dcc[i].sock);
166 segfault 1.1 unlink(pid_file);
167 fabian 1.43 if (!recoverable) {
168     bg_send_quit(BG_ABORT);
169 segfault 1.1 exit(1);
170 fabian 1.43 }
171 segfault 1.1 }
172    
173 fabian 1.27
174 segfault 1.1 int expmem_chanprog(), expmem_users(), expmem_misc(), expmem_dccutil(),
175     expmem_botnet(), expmem_tcl(), expmem_tclhash(), expmem_net(),
176     expmem_modules(int), expmem_language(), expmem_tcldcc();
177    
178 fabian 1.27 /* For mem.c : calculate memory we SHOULD be using
179     */
180 segfault 1.1 int expected_memory()
181     {
182     int tot;
183    
184 fabian 1.10 Context;
185 segfault 1.1 tot = expmem_chanprog() + expmem_users() + expmem_misc() +
186     expmem_dccutil() + expmem_botnet() + expmem_tcl() + expmem_tclhash() +
187     expmem_net() + expmem_modules(0) + expmem_language() + expmem_tcldcc();
188     return tot;
189     }
190    
191     static void check_expired_dcc()
192     {
193     int i;
194    
195     for (i = 0; i < dcc_total; i++)
196     if (dcc[i].type && dcc[i].type->timeout_val &&
197     ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
198     if (dcc[i].type->timeout)
199     dcc[i].type->timeout(i);
200     else if (dcc[i].type->eof)
201     dcc[i].type->eof(i);
202     else
203     continue;
204 fabian 1.27 /* Only timeout 1 socket per cycle, too risky for more */
205 segfault 1.1 return;
206     }
207     }
208    
209 fabian 1.11 #ifdef DEBUG_CONTEXT
210 fabian 1.27 static int nested_debug = 0;
211 segfault 1.1
212     void write_debug()
213     {
214     int x;
215     char s[80];
216     int y;
217    
218     if (nested_debug) {
219 fabian 1.27 /* Yoicks, if we have this there's serious trouble!
220     * All of these are pretty reliable, so we'll try these.
221     *
222     * NOTE: dont try and display context-notes in here, it's
223     * _not_ safe <cybah>
224     */
225 segfault 1.1 x = creat("DEBUG.DEBUG", 0644);
226     setsock(x, SOCK_NONSOCK);
227     if (x >= 0) {
228     strcpy(s, ctime(&now));
229     dprintf(-x, "Debug (%s) written %s", ver, s);
230     dprintf(-x, "Please report problem to eggheads@eggheads.org");
231     dprintf(-x, "after a visit to http://www.eggheads.org/bugs.html");
232     dprintf(-x, "Full Patch List: %s\n", egg_xtra);
233     dprintf(-x, "Context: ");
234     cx_ptr = cx_ptr & 15;
235     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
236     dprintf(-x, "%s/%d,\n ", cx_file[y], cx_line[y]);
237     dprintf(-x, "%s/%d\n\n", cx_file[y], cx_line[y]);
238     killsock(x);
239     close(x);
240     }
241 fabian 1.43 bg_send_quit(BG_ABORT);
242 fabian 1.27 exit(1); /* Dont even try & tell people about, that may
243     have caused the fault last time. */
244 segfault 1.1 } else
245     nested_debug = 1;
246     putlog(LOG_MISC, "*", "* Last context: %s/%d [%s]", cx_file[cx_ptr],
247     cx_line[cx_ptr], cx_note[cx_ptr][0] ? cx_note[cx_ptr] : "");
248 fabian 1.2 putlog(LOG_MISC, "*", "* Please REPORT this BUG!");
249     putlog(LOG_MISC, "*", "* Check doc/BUG-REPORT on how to do so.");
250 fabian 1.9 x = creat("DEBUG", 0644);
251 segfault 1.1 setsock(x, SOCK_NONSOCK);
252     if (x < 0) {
253     putlog(LOG_MISC, "*", "* Failed to write DEBUG");
254     } else {
255     strcpy(s, ctime(&now));
256     dprintf(-x, "Debug (%s) written %s", ver, s);
257     dprintf(-x, "Full Patch List: %s\n", egg_xtra);
258     #ifdef STATIC
259     dprintf(-x, "STATICALLY LINKED\n");
260     #endif
261     strcpy(s, "info library");
262     if (interp && (Tcl_Eval(interp, s) == TCL_OK))
263     dprintf(-x, "Using tcl library: %s (header version %s)\n",
264     interp->result, TCL_VERSION);
265     dprintf(-x, "Compile flags: %s\n", CCFLAGS);
266     dprintf(-x, "Link flags : %s\n", LDFLAGS);
267     dprintf(-x, "Strip flags : %s\n", STRIPFLAGS);
268     dprintf(-x, "Context: ");
269     cx_ptr = cx_ptr & 15;
270     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
271     dprintf(-x, "%s/%d, [%s]\n ", cx_file[y], cx_line[y],
272     (cx_note[y][0]) ? cx_note[y] : "");
273     dprintf(-x, "%s/%d [%s]\n\n", cx_file[cx_ptr], cx_line[cx_ptr],
274     (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
275     tell_dcc(-x);
276     dprintf(-x, "\n");
277     debug_mem_to_dcc(-x);
278     killsock(x);
279     close(x);
280     putlog(LOG_MISC, "*", "* Wrote DEBUG");
281     }
282     }
283 fabian 1.10 #endif
284 fabian 1.2
285 segfault 1.1 static void got_bus(int z)
286     {
287 fabian 1.11 #ifdef DEBUG_CONTEXT
288 segfault 1.1 write_debug();
289 fabian 1.10 #endif
290 segfault 1.1 fatal("BUS ERROR -- CRASHING!", 1);
291     #ifdef SA_RESETHAND
292     kill(getpid(), SIGBUS);
293     #else
294 fabian 1.43 bg_send_quit(BG_ABORT);
295 segfault 1.1 exit(1);
296     #endif
297     }
298    
299     static void got_segv(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("SEGMENT VIOLATION -- CRASHING!", 1);
305     #ifdef SA_RESETHAND
306     kill(getpid(), SIGSEGV);
307     #else
308 fabian 1.43 bg_send_quit(BG_ABORT);
309 segfault 1.1 exit(1);
310     #endif
311     }
312    
313     static void got_fpe(int z)
314     {
315 fabian 1.11 #ifdef DEBUG_CONTEXT
316 segfault 1.1 write_debug();
317 fabian 1.10 #endif
318 segfault 1.1 fatal("FLOATING POINT ERROR -- CRASHING!", 0);
319     }
320    
321     static void got_term(int z)
322     {
323     write_userfile(-1);
324     check_tcl_event("sigterm");
325     if (die_on_sigterm) {
326     botnet_send_chat(-1, botnetnick, "ACK, I've been terminated!");
327     fatal("TERMINATE SIGNAL -- SIGNING OFF", 0);
328     } else {
329     putlog(LOG_MISC, "*", "RECEIVED TERMINATE SIGNAL (IGNORING)");
330     }
331     }
332    
333     static void got_quit(int z)
334     {
335     check_tcl_event("sigquit");
336     putlog(LOG_MISC, "*", "RECEIVED QUIT SIGNAL (IGNORING)");
337     return;
338     }
339    
340     static void got_hup(int z)
341     {
342     write_userfile(-1);
343     check_tcl_event("sighup");
344     if (die_on_sighup) {
345     fatal("HANGUP SIGNAL -- SIGNING OFF", 0);
346     } else
347     putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
348     do_restart = -2;
349     return;
350     }
351    
352 fabian 1.27 /* A call to resolver (gethostbyname, etc) timed out
353     */
354 segfault 1.1 static void got_alarm(int z)
355     {
356     longjmp(alarmret, 1);
357 fabian 1.27
358     /* -Never reached- */
359 segfault 1.1 }
360    
361 fabian 1.27 /* Got ILL signal -- log context and continue
362     */
363 segfault 1.1 static void got_ill(int z)
364     {
365     check_tcl_event("sigill");
366 fabian 1.11 #ifdef DEBUG_CONTEXT
367 segfault 1.1 putlog(LOG_MISC, "*", "* Context: %s/%d [%s]", cx_file[cx_ptr],
368     cx_line[cx_ptr], (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
369 fabian 1.5 #endif
370 segfault 1.1 }
371    
372 fabian 1.11 #ifdef DEBUG_CONTEXT
373 fabian 1.10 /* Context */
374     void eggContext(char *file, int line, char *module)
375     {
376 fabian 1.39 char x[31], *p;
377 fabian 1.10
378 fabian 1.39 p = strrchr(file, '/');
379     if (!module) {
380     strncpy(x, p ? p + 1 : file, 30);
381     x[30] = 0;
382     } else
383     egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
384 fabian 1.10 cx_ptr = ((cx_ptr + 1) & 15);
385     strcpy(cx_file[cx_ptr], x);
386     cx_line[cx_ptr] = line;
387     cx_note[cx_ptr][0] = 0;
388     }
389    
390 fabian 1.27 /* Called from the ContextNote macro.
391     */
392 fabian 1.10 void eggContextNote(char *file, int line, char *module, char *note)
393     {
394 fabian 1.39 char x[31], *p;
395 fabian 1.10
396 fabian 1.39 p = strrchr(file, '/');
397     if (!module) {
398     strncpy(x, p ? p + 1 : file, 30);
399     x[30] = 0;
400     } else
401     egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
402 fabian 1.10 cx_ptr = ((cx_ptr + 1) & 15);
403     strcpy(cx_file[cx_ptr], x);
404     cx_line[cx_ptr] = line;
405     strncpy(cx_note[cx_ptr], note, 255);
406     cx_note[cx_ptr][255] = 0;
407     }
408 fabian 1.11 #endif
409 fabian 1.10
410 fabian 1.11 #ifdef DEBUG_ASSERT
411 fabian 1.27 /* Called from the Assert macro.
412     */
413 fabian 1.10 void eggAssert(char *file, int line, char *module, int expr)
414     {
415     if (!(expr)) {
416 fabian 1.11 #ifdef DEBUG_CONTEXT
417 fabian 1.10 write_debug();
418 fabian 1.11 #endif
419 fabian 1.10 if (!module) {
420     putlog(LOG_MISC, "*", "* In file %s, line %u", file, line);
421     } else {
422     putlog(LOG_MISC, "*", "* In file %s:%s, line %u", module, file, line);
423     }
424     fatal("ASSERT FAILED -- CRASHING!", 1);
425     }
426     }
427     #endif
428    
429 segfault 1.1 static void do_arg(char *s)
430     {
431     int i;
432    
433     if (s[0] == '-')
434     for (i = 1; i < strlen(s); i++) {
435     if (s[i] == 'n')
436     backgrd = 0;
437     if (s[i] == 'c') {
438     con_chan = 1;
439     term_z = 0;
440     }
441     if (s[i] == 't') {
442     con_chan = 0;
443     term_z = 1;
444     }
445     if (s[i] == 'm')
446     make_userfile = 1;
447     if (s[i] == 'v') {
448     char x[256], *z = x;
449    
450     strcpy(x, egg_version);
451     newsplit(&z);
452     newsplit(&z);
453     printf("%s\n", version);
454     if (z[0])
455     printf(" (patches: %s)\n", z);
456 fabian 1.43 bg_send_quit(BG_ABORT);
457 segfault 1.1 exit(0);
458     }
459     if (s[i] == 'h') {
460     printf("\n%s\n\n", version);
461     printf(EGG_USAGE);
462     printf("\n");
463 fabian 1.43 bg_send_quit(BG_ABORT);
464 segfault 1.1 exit(0);
465     }
466     } else
467     strcpy(configfile, s);
468     }
469    
470     void backup_userfile()
471     {
472     char s[150];
473    
474     putlog(LOG_MISC, "*", USERF_BACKUP);
475     strcpy(s, userfile);
476     strcat(s, "~bak");
477     copyfile(userfile, s);
478     }
479    
480 fabian 1.27 /* Timer info */
481     static int lastmin = 99;
482     static time_t then;
483     static struct tm nowtm;
484 segfault 1.1
485 fabian 1.34 /* Called once a second.
486     *
487     * Note: Try to not put any Context lines in here (guppy 21Mar2000).
488 fabian 1.27 */
489 segfault 1.1 static void core_secondly()
490     {
491     static int cnt = 0;
492     int miltime;
493    
494 fabian 1.27 do_check_timers(&utimer); /* Secondly timers */
495 segfault 1.1 cnt++;
496 fabian 1.27 if (cnt >= 10) { /* Every 10 seconds */
497 segfault 1.1 cnt = 0;
498     check_expired_dcc();
499     if (con_chan && !backgrd) {
500     dprintf(DP_STDOUT, "\033[2J\033[1;1H");
501     tell_verbose_status(DP_STDOUT);
502     do_module_report(DP_STDOUT, 0, "server");
503     do_module_report(DP_STDOUT, 0, "channels");
504     tell_mem_status_dcc(DP_STDOUT);
505     }
506     }
507 fabian 1.35 egg_memcpy(&nowtm, localtime(&now), sizeof(struct tm));
508 fabian 1.17 if (nowtm.tm_min != lastmin) {
509 segfault 1.1 int i = 0;
510    
511 fabian 1.27 /* Once a minute */
512 segfault 1.1 lastmin = (lastmin + 1) % 60;
513     call_hook(HOOK_MINUTELY);
514     check_expired_ignores();
515 fabian 1.27 autolink_cycle(NULL); /* Attempt autolinks */
516     /* In case for some reason more than 1 min has passed: */
517 fabian 1.17 while (nowtm.tm_min != lastmin) {
518 fabian 1.27 /* Timer drift, dammit */
519 fabian 1.17 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
520 segfault 1.1 i++;
521     lastmin = (lastmin + 1) % 60;
522     call_hook(HOOK_MINUTELY);
523     }
524     if (i > 1)
525     putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
526 fabian 1.17 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
527     if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
528 segfault 1.1 call_hook(HOOK_5MINUTELY);
529     check_botnet_pings();
530     if (quick_logs == 0) {
531     flushlogs();
532     check_logsize();
533     }
534 fabian 1.27 if (miltime == 0) { /* At midnight */
535 segfault 1.1 char s[128];
536     int j;
537    
538     s[my_strcpy(s, ctime(&now)) - 1] = 0;
539 fabian 1.4 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
540 segfault 1.1 backup_userfile();
541     for (j = 0; j < max_logs; j++) {
542     if (logs[j].filename != NULL && logs[j].f != NULL) {
543     fclose(logs[j].f);
544     logs[j].f = NULL;
545     }
546     }
547     }
548     }
549 fabian 1.17 if (nowtm.tm_min == notify_users_at)
550 segfault 1.1 call_hook(HOOK_HOURLY);
551 fabian 1.27 /* These no longer need checking since they are all check vs minutely
552     * settings and we only get this far on the minute.
553     */
554 segfault 1.1 if (miltime == switch_logfiles_at) {
555     call_hook(HOOK_DAILY);
556     if (!keep_all_logs) {
557     putlog(LOG_MISC, "*", MISC_LOGSWITCH);
558     for (i = 0; i < max_logs; i++)
559     if (logs[i].filename) {
560     char s[1024];
561    
562     if (logs[i].f) {
563     fclose(logs[i].f);
564     logs[i].f = NULL;
565     }
566     simple_sprintf(s, "%s.yesterday", logs[i].filename);
567     unlink(s);
568 fabian 1.2 movefile(logs[i].filename, s);
569 segfault 1.1 }
570     }
571     }
572     }
573     }
574    
575     static void core_minutely()
576     {
577 fabian 1.17 check_tcl_time(&nowtm);
578 segfault 1.1 do_check_timers(&timer);
579     if (quick_logs != 0) {
580     flushlogs();
581     check_logsize();
582     }
583     }
584    
585     static void core_hourly()
586     {
587 fabian 1.10 Context;
588 segfault 1.1 write_userfile(-1);
589     }
590    
591     static void event_rehash()
592     {
593 fabian 1.10 Context;
594 segfault 1.1 check_tcl_event("rehash");
595     }
596    
597     static void event_prerehash()
598     {
599 fabian 1.10 Context;
600 segfault 1.1 check_tcl_event("prerehash");
601     }
602    
603     static void event_save()
604     {
605 fabian 1.10 Context;
606 segfault 1.1 check_tcl_event("save");
607     }
608    
609     static void event_logfile()
610     {
611 fabian 1.10 Context;
612 segfault 1.1 check_tcl_event("logfile");
613     }
614    
615 fabian 1.13 static void event_resettraffic()
616     {
617     Context;
618     otraffic_irc += otraffic_irc_today;
619     itraffic_irc += itraffic_irc_today;
620     otraffic_bn += otraffic_bn_today;
621     itraffic_bn += itraffic_bn_today;
622     otraffic_dcc += otraffic_dcc_today;
623     itraffic_dcc += itraffic_dcc_today;
624     otraffic_unknown += otraffic_unknown_today;
625     itraffic_unknown += itraffic_unknown_today;
626     otraffic_trans += otraffic_trans_today;
627     itraffic_trans += itraffic_trans_today;
628     otraffic_irc_today = otraffic_bn_today = 0;
629     otraffic_dcc_today = otraffic_unknown_today = 0;
630     itraffic_irc_today = itraffic_bn_today = 0;
631     itraffic_dcc_today = itraffic_unknown_today = 0;
632 fabian 1.18 itraffic_trans_today = otraffic_trans_today = 0;
633 fabian 1.13 }
634    
635 segfault 1.1 void kill_tcl();
636     extern module_entry *module_list;
637     void restart_chons();
638    
639     #ifdef STATIC
640     void check_static(char *, char *(*)());
641    
642     #include "mod/static.h"
643     #endif
644     int init_mem(), init_dcc_max(), init_userent(), init_misc(), init_bots(),
645 fabian 1.8 init_net(), init_modules(), init_tcl(int, char **),
646     init_language(int);
647 fabian 1.11
648     void patch(char *str)
649     {
650     char *p = strchr(egg_version, '+');
651    
652     if (!p)
653     p = &egg_version[strlen(egg_version)];
654     sprintf(p, "+%s", str);
655     egg_numver++;
656     sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
657     }
658 segfault 1.1
659     int main(int argc, char **argv)
660     {
661     int xx, i;
662     char buf[520], s[520];
663     FILE *f;
664     struct sigaction sv;
665     struct chanset_t *chan;
666    
667 fabian 1.15 #ifdef DEBUG_MEM
668 fabian 1.21 /* Make sure it can write core, if you make debug. Else it's pretty
669     * useless (dw)
670     */
671 fabian 1.15 {
672     #include <sys/resource.h>
673     struct rlimit cdlim;
674 fabian 1.21
675 fabian 1.15 cdlim.rlim_cur = RLIM_INFINITY;
676     cdlim.rlim_max = RLIM_INFINITY;
677 fabian 1.32 setrlimit(RLIMIT_CORE, &cdlim);
678 fabian 1.15 }
679     #endif
680    
681 fabian 1.27 /* Initialise context list */
682 fabian 1.32 for (i = 0; i < 16; i++)
683 fabian 1.10 Context;
684 fabian 1.32
685 segfault 1.1 #include "patch.h"
686 fabian 1.27 /* Version info! */
687 segfault 1.1 sprintf(ver, "eggdrop v%s", egg_version);
688 fabian 1.25 sprintf(version, "Eggdrop v%s (c)1997 Robey Pointer (c)1999, 2000 Eggheads",
689     egg_version);
690 fabian 1.27 /* Now add on the patchlevel (for Tcl) */
691 fabian 1.2 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
692 segfault 1.1 strcat(egg_version, egg_xtra);
693 fabian 1.10 Context;
694 segfault 1.1 #ifdef STOP_UAC
695     {
696     int nvpair[2];
697    
698     nvpair[0] = SSIN_UACPROC;
699     nvpair[1] = UAC_NOPRINT;
700     setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
701     }
702     #endif
703 fabian 1.27
704     /* Set up error traps: */
705 segfault 1.1 sv.sa_handler = got_bus;
706     sigemptyset(&sv.sa_mask);
707     #ifdef SA_RESETHAND
708     sv.sa_flags = SA_RESETHAND;
709     #else
710     sv.sa_flags = 0;
711     #endif
712     sigaction(SIGBUS, &sv, NULL);
713     sv.sa_handler = got_segv;
714     sigaction(SIGSEGV, &sv, NULL);
715     #ifdef SA_RESETHAND
716     sv.sa_flags = 0;
717     #endif
718     sv.sa_handler = got_fpe;
719     sigaction(SIGFPE, &sv, NULL);
720     sv.sa_handler = got_term;
721     sigaction(SIGTERM, &sv, NULL);
722     sv.sa_handler = got_hup;
723     sigaction(SIGHUP, &sv, NULL);
724     sv.sa_handler = got_quit;
725     sigaction(SIGQUIT, &sv, NULL);
726     sv.sa_handler = SIG_IGN;
727     sigaction(SIGPIPE, &sv, NULL);
728     sv.sa_handler = got_ill;
729     sigaction(SIGILL, &sv, NULL);
730     sv.sa_handler = got_alarm;
731     sigaction(SIGALRM, &sv, NULL);
732 fabian 1.27
733     /* Initialize variables and stuff */
734 segfault 1.1 now = time(NULL);
735     chanset = NULL;
736 fabian 1.35 egg_memcpy(&nowtm, localtime(&now), sizeof(struct tm));
737 fabian 1.17 lastmin = nowtm.tm_min;
738 segfault 1.1 srandom(now);
739     init_mem();
740     init_language(1);
741     if (argc > 1)
742     for (i = 1; i < argc; i++)
743     do_arg(argv[i]);
744     printf("\n%s\n", version);
745     init_dcc_max();
746     init_userent();
747     init_misc();
748     init_bots();
749     init_net();
750     init_modules();
751 fabian 1.43 if (backgrd)
752     bg_prepare_split();
753 fabian 1.8 init_tcl(argc, argv);
754 segfault 1.1 init_language(0);
755     #ifdef STATIC
756     link_statics();
757     #endif
758 fabian 1.10 Context;
759 segfault 1.1 strcpy(s, ctime(&now));
760     s[strlen(s) - 1] = 0;
761     strcpy(&s[11], &s[20]);
762     putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
763     chanprog();
764 fabian 1.10 Context;
765 segfault 1.1 if (encrypt_pass == 0) {
766     printf(MOD_NOCRYPT);
767 fabian 1.43 bg_send_quit(BG_ABORT);
768 segfault 1.1 exit(1);
769     }
770     i = 0;
771     for (chan = chanset; chan; chan = chan->next)
772     i++;
773 fabian 1.4 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
774 segfault 1.1 botnetnick, i, count_users(userlist));
775     cache_miss = 0;
776     cache_hit = 0;
777     sprintf(pid_file, "pid.%s", botnetnick);
778 fabian 1.10 Context;
779 fabian 1.27
780     /* Check for pre-existing eggdrop! */
781 segfault 1.1 f = fopen(pid_file, "r");
782     if (f != NULL) {
783     fgets(s, 10, f);
784     xx = atoi(s);
785 fabian 1.27 kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
786     is used */
787 segfault 1.1 if (errno != ESRCH) {
788     printf(EGG_RUNNING1, origbotname);
789     printf(EGG_RUNNING2, pid_file);
790 fabian 1.43 bg_send_quit(BG_ABORT);
791 segfault 1.1 exit(1);
792     }
793     }
794 fabian 1.10 Context;
795 fabian 1.27
796     /* Move into background? */
797 segfault 1.1 if (backgrd) {
798 fabian 1.38 #ifndef CYGWIN_HACKS
799 fabian 1.43 bg_do_split();
800 fabian 1.38 } else { /* !backgrd */
801 fabian 1.5 #endif
802 fabian 1.38 xx = getpid();
803     if (xx != 0) {
804     FILE *fp;
805    
806     /* Write pid to file */
807     unlink(pid_file);
808     fp = fopen(pid_file, "w");
809     if (fp != NULL) {
810     fprintf(fp, "%u\n", xx);
811     if (fflush(fp)) {
812     /* Let the bot live since this doesn't appear to be a botchk */
813     printf(EGG_NOWRITE, pid_file);
814     fclose(fp);
815     unlink(pid_file);
816     } else
817     fclose(fp);
818 fabian 1.27 } else
819 fabian 1.38 printf(EGG_NOWRITE, pid_file);
820     #ifdef CYGWIN_HACKS
821     printf("Launched (pid: %d)\n\n", xx);
822     #endif
823     }
824 segfault 1.1 }
825 fabian 1.38
826     use_stderr = 0; /* Stop writing to stderr now */
827 segfault 1.1 if (backgrd) {
828 fabian 1.27 /* Ok, try to disassociate from controlling terminal (finger cross) */
829 fabian 1.5 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
830 segfault 1.1 setpgid(0, 0);
831     #endif
832 fabian 1.38 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
833 segfault 1.1 freopen("/dev/null", "r", stdin);
834     freopen("/dev/null", "w", stdout);
835     freopen("/dev/null", "w", stderr);
836 fabian 1.5 #ifdef CYGWIN_HACKS
837     FreeConsole();
838     #endif
839 segfault 1.1 }
840 fabian 1.27
841     /* Terminal emulating dcc chat */
842 fabian 1.42 if (!backgrd && term_z) {
843 segfault 1.1 int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
844    
845     dcc[n].addr = iptolong(getmyip());
846     dcc[n].sock = STDOUT;
847     dcc[n].timeval = now;
848     dcc[n].u.chat->con_flags = conmask;
849     dcc[n].u.chat->strip_flags = STRIP_ALL;
850     dcc[n].status = STAT_ECHO;
851     strcpy(dcc[n].nick, "HQ");
852     strcpy(dcc[n].host, "llama@console");
853     dcc[n].user = get_user_by_handle(userlist, "HQ");
854 fabian 1.27 /* Make sure there's an innocuous HQ user if needed */
855 segfault 1.1 if (!dcc[n].user) {
856 fabian 1.24 userlist = adduser(userlist, "HQ", "none", "-", USER_PARTY);
857 segfault 1.1 dcc[n].user = get_user_by_handle(userlist, "HQ");
858     }
859 fabian 1.27 setsock(STDOUT, 0); /* Entry in net table */
860 segfault 1.1 dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
861     dcc_chatter(n);
862     }
863 fabian 1.27
864 segfault 1.1 then = now;
865     online_since = now;
866 fabian 1.27 autolink_cycle(NULL); /* Hurry and connect to tandem bots */
867 segfault 1.1 add_help_reference("cmds1.help");
868     add_help_reference("cmds2.help");
869     add_help_reference("core.help");
870 fabian 1.22 add_hook(HOOK_SECONDLY, (Function) core_secondly);
871     add_hook(HOOK_MINUTELY, (Function) core_minutely);
872     add_hook(HOOK_HOURLY, (Function) core_hourly);
873     add_hook(HOOK_REHASH, (Function) event_rehash);
874     add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
875     add_hook(HOOK_USERFILE, (Function) event_save);
876     add_hook(HOOK_DAILY, (Function) event_logfile);
877     add_hook(HOOK_DAILY, (Function) event_resettraffic);
878 segfault 1.1
879     debug0("main: entering loop");
880     while (1) {
881     int socket_cleanup = 0;
882    
883 fabian 1.10 Context;
884 fabian 1.43 #if !defined(HAVE_PRE7_5_TCL)
885 fabian 1.27 /* Process a single tcl event */
886 segfault 1.1 Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
887 fabian 1.5 #endif
888 fabian 1.27 /* Lets move some of this here, reducing the numer of actual
889     * calls to periodic_timers
890     */
891 segfault 1.1 now = time(NULL);
892 fabian 1.27 random(); /* Woop, lets really jumble things */
893     if (now != then) { /* Once a second */
894 segfault 1.1 call_hook(HOOK_SECONDLY);
895     then = now;
896     }
897 fabian 1.10 Context;
898 fabian 1.27 /* Only do this every so often */
899 segfault 1.1 if (!socket_cleanup) {
900 fabian 1.16 dcc_remove_lost();
901 fabian 1.27 /* Check for server or dcc activity */
902 segfault 1.1 dequeue_sockets();
903     socket_cleanup = 5;
904     } else
905     socket_cleanup--;
906     xx = sockgets(buf, &i);
907 fabian 1.27 if (xx >= 0) { /* Non-error */
908 segfault 1.1 int idx;
909    
910 fabian 1.10 Context;
911 segfault 1.1 for (idx = 0; idx < dcc_total; idx++)
912     if (dcc[idx].sock == xx) {
913 fabian 1.13 if (dcc[idx].type && dcc[idx].type->activity) {
914 fabian 1.27 /* Traffic stats */
915     if (dcc[idx].type->name) {
916     if (!strncmp(dcc[idx].type->name, "BOT", 3))
917     itraffic_bn_today += strlen(buf) + 1;
918     else if (!strcmp(dcc[idx].type->name, "SERVER"))
919     itraffic_irc_today += strlen(buf) + 1;
920     else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
921     itraffic_dcc_today += strlen(buf) + 1;
922     else if (!strncmp(dcc[idx].type->name, "FILES", 5))
923     itraffic_dcc_today += strlen(buf) + 1;
924     else if (!strcmp(dcc[idx].type->name, "SEND"))
925     itraffic_trans_today += strlen(buf) + 1;
926     else if (!strncmp(dcc[idx].type->name, "GET", 3))
927     itraffic_trans_today += strlen(buf) + 1;
928     else
929     itraffic_unknown_today += strlen(buf) + 1;
930     }
931     dcc[idx].type->activity(idx, buf, i);
932 fabian 1.13 } else
933 segfault 1.1 putlog(LOG_MISC, "*",
934     "!!! untrapped dcc activity: type %s, sock %d",
935     dcc[idx].type->name, dcc[idx].sock);
936     break;
937     }
938     } else if (xx == -1) { /* EOF from someone */
939     int idx;
940    
941     if ((i == STDOUT) && !backgrd)
942     fatal("END OF FILE ON TERMINAL", 0);
943 fabian 1.10 Context;
944 segfault 1.1 for (idx = 0; idx < dcc_total; idx++)
945     if (dcc[idx].sock == i) {
946     if (dcc[idx].type && dcc[idx].type->eof)
947     dcc[idx].type->eof(idx);
948     else {
949     putlog(LOG_MISC, "*",
950     "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
951 fabian 1.2 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
952     killsock(i);
953 segfault 1.1 lostdcc(idx);
954     }
955     idx = dcc_total + 1;
956     }
957     if (idx == dcc_total) {
958     putlog(LOG_MISC, "*",
959 fabian 1.2 "(@) EOF socket %d, not a dcc socket, not anything.", i);
960     close(i);
961     killsock(i);
962 segfault 1.1 }
963     } else if ((xx == -2) && (errno != EINTR)) { /* select() error */
964 fabian 1.10 Context;
965 segfault 1.1 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
966     for (i = 0; i < dcc_total; i++) {
967     if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
968     putlog(LOG_MISC, "*",
969     "DCC socket %d (type %d, name '%s') expired -- pfft",
970     dcc[i].sock, dcc[i].type, dcc[i].nick);
971     killsock(dcc[i].sock);
972     lostdcc(i);
973     i--;
974     }
975     }
976     } else if (xx == (-3)) {
977     call_hook(HOOK_IDLE);
978 fabian 1.27 socket_cleanup = 0; /* If we've been idle, cleanup & flush */
979 segfault 1.1 }
980 fabian 1.27
981 segfault 1.1 if (do_restart) {
982     if (do_restart == -2)
983     rehash();
984     else {
985 fabian 1.27 /* Unload as many modules as possible */
986 segfault 1.1 int f = 1;
987     module_entry *p;
988     Function x;
989     char xx[256];
990    
991     while (f) {
992     f = 0;
993     for (p = module_list; p != NULL; p = p->next) {
994     dependancy *d = dependancy_list;
995     int ok = 1;
996    
997     while (ok && d) {
998     if (d->needed == p)
999     ok = 0;
1000     d = d->next;
1001     }
1002     if (ok) {
1003     strcpy(xx, p->name);
1004     if (module_unload(xx, origbotname) == NULL) {
1005     f = 1;
1006     break;
1007     }
1008     }
1009     }
1010     }
1011     p = module_list;
1012     if (p && p->next && p->next->next)
1013 fabian 1.27 /* Should be only 2 modules now -
1014     * blowfish & eggdrop
1015     */
1016 segfault 1.1 putlog(LOG_MISC, "*", MOD_STAGNANT);
1017 fabian 1.10 Context;
1018 segfault 1.1 flushlogs();
1019 fabian 1.10 Context;
1020 segfault 1.1 kill_tcl();
1021 fabian 1.8 init_tcl(argc, argv);
1022 segfault 1.1 init_language(0);
1023 fabian 1.30 /* We expect the encryption module as the current module pointed
1024     * to by `module_list'.
1025     */
1026 segfault 1.1 x = p->funcs[MODCALL_START];
1027 fabian 1.30 /* `NULL' indicates that we just recently restarted. The module
1028     * is expected to re-initialise as needed.
1029     */
1030     x(NULL);
1031 segfault 1.1 rehash();
1032     restart_chons();
1033     }
1034     do_restart = 0;
1035     }
1036     }
1037     }

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