/[cvs]/eggdrop1.9/src/main.c
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Revision 1.80 - (hide annotations) (download) (as text)
Fri Oct 12 02:27:45 2001 UTC (17 years, 9 months ago) by stdarg
Branch: MAIN
Changes since 1.79: +6 -3 lines
File MIME type: text/x-chdr
Moved some stuff from main.c to botnet.c (for modularizing botnet)
Changed irctoupper to _irctoupper in match.c (temporary fix, cuz something is making it crash (I think irctoupper isn't initialized or exported or something))
Added code to expand the socket table when it's full.

1 guppy 1.56 /*
2 segfault 1.1 * main.c -- handles:
3 fabian 1.14 * core event handling
4     * signal handling
5     * command line arguments
6     * context and assert debugging
7 guppy 1.56 *
8 stdarg 1.80 * $Id: main.c,v 1.79 2001/10/10 10:44:04 tothwolf Exp $
9 segfault 1.1 */
10 guppy 1.56 /*
11     * Copyright (C) 1997 Robey Pointer
12     * Copyright (C) 1999, 2000, 2001 Eggheads Development Team
13     *
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 guppy 1.56 *
19 segfault 1.1 * 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 guppy 1.56 *
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 guppy 1.56 /*
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 guppy 1.60 * list available at eggheads@eggheads.org.
32 segfault 1.1 */
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 ite 1.76 #include <locale.h>
43    
44 fabian 1.27 #ifdef STOP_UAC /* osf/1 complains a lot */
45 segfault 1.1 #include <sys/sysinfo.h>
46     #define UAC_NOPRINT 0x00000001 /* Don't report unaligned fixups */
47     #endif
48 fabian 1.27 /* Some systems have a working sys/wait.h even though configure will
49     * decide it's not bsd compatable. Oh well.
50     */
51 guppy 1.49
52 segfault 1.1 #include "chan.h"
53     #include "modules.h"
54     #include "tandem.h"
55 fabian 1.43 #include "bg.h"
56 fabian 1.38
57 drummer 1.71 #include "adns/adns.h"
58    
59 poptix 1.62 #ifdef CYGWIN_HACKS
60     #include <windows.h>
61     #endif
62    
63 segfault 1.1 #ifndef _POSIX_SOURCE
64 fabian 1.27 /* Solaris needs this */
65 segfault 1.1 #define _POSIX_SOURCE 1
66     #endif
67    
68 fabian 1.27 extern char origbotname[], userfile[], botnetnick[];
69     extern int dcc_total, conmask, cache_hit, cache_miss,
70     max_logs, quick_logs;
71     extern struct dcc_t *dcc;
72     extern struct userrec *userlist;
73     extern struct chanset_t *chanset;
74     extern log_t *logs;
75     extern Tcl_Interp *interp;
76     extern tcl_timer_t *timer,
77     *utimer;
78     extern jmp_buf alarmret;
79    
80 segfault 1.1
81 guppy 1.56 /*
82 segfault 1.1 * Please use the PATCH macro instead of directly altering the version
83     * string from now on (it makes it much easier to maintain patches).
84     * Also please read the README file regarding your rights to distribute
85     * modified versions of this bot.
86     */
87    
88 ite 1.76 char egg_version[1024] = VERSION;
89     int egg_numver = VERSION_NUM;
90 segfault 1.1
91 fabian 1.27 char notify_new[121] = ""; /* Person to send a note to for new users */
92     int default_flags = 0; /* Default user flags and */
93     int default_uflags = 0; /* Default userdefinied flags for people
94     who say 'hello' or for .adduser */
95    
96     int backgrd = 1; /* Run in the background? */
97     int con_chan = 0; /* Foreground: constantly display channel
98     stats? */
99     int term_z = 0; /* Foreground: use the terminal as a party
100     line? */
101     char configfile[121] = "eggdrop.conf"; /* Name of the config file */
102     char helpdir[121]; /* Directory of help files (if used) */
103     char textdir[121] = ""; /* Directory for text files that get dumped */
104     int keep_all_logs = 0; /* Never erase logfiles, no matter how old
105     they are? */
106 fabian 1.40 char logfile_suffix[21] = ".%d%b%Y"; /* Format of logfile suffix. */
107 fabian 1.27 time_t online_since; /* Unix-time that the bot loaded up */
108     int make_userfile = 0; /* Using bot in make-userfile mode? (first
109     user to 'hello' becomes master) */
110     char owner[121] = ""; /* Permanent owner(s) of the bot */
111 guppy 1.49 char pid_file[HANDLEN + 5]; /* Name of the file for the pid to be
112 fabian 1.27 stored in */
113     int save_users_at = 0; /* How many minutes past the hour to
114     save the userfile? */
115     int notify_users_at = 0; /* How many minutes past the hour to
116     notify users of notes? */
117     int switch_logfiles_at = 300; /* When (military time) to switch logfiles */
118     char version[81]; /* Version info (long form) */
119     char ver[41]; /* Version info (short form) */
120     char egg_xtra[2048]; /* Patch info */
121     int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
122     int do_restart = 0; /* .restart has been called, restart asap */
123     int die_on_sighup = 0; /* die if bot receives SIGHUP */
124 guppy 1.52 int die_on_sigterm = 1; /* die if bot receives SIGTERM */
125 fabian 1.27 int resolve_timeout = 15; /* hostname/address lookup timeout */
126 guppy 1.72 char quit_msg[1024]; /* quit message */
127 fabian 1.27 time_t now; /* duh, now :) */
128    
129     /* Traffic stats
130     */
131 fabian 1.33 unsigned long otraffic_irc = 0;
132     unsigned long otraffic_irc_today = 0;
133     unsigned long otraffic_bn = 0;
134     unsigned long otraffic_bn_today = 0;
135     unsigned long otraffic_dcc = 0;
136     unsigned long otraffic_dcc_today = 0;
137     unsigned long otraffic_filesys = 0;
138     unsigned long otraffic_filesys_today = 0;
139     unsigned long otraffic_trans = 0;
140     unsigned long otraffic_trans_today = 0;
141     unsigned long otraffic_unknown = 0;
142     unsigned long otraffic_unknown_today = 0;
143     unsigned long itraffic_irc = 0;
144     unsigned long itraffic_irc_today = 0;
145     unsigned long itraffic_bn = 0;
146     unsigned long itraffic_bn_today = 0;
147     unsigned long itraffic_dcc = 0;
148     unsigned long itraffic_dcc_today = 0;
149     unsigned long itraffic_trans = 0;
150     unsigned long itraffic_trans_today = 0;
151     unsigned long itraffic_unknown = 0;
152     unsigned long itraffic_unknown_today = 0;
153 segfault 1.1
154 fabian 1.11 #ifdef DEBUG_CONTEXT
155 fabian 1.27 /* Context storage for fatal crashes */
156     char cx_file[16][30];
157     char cx_note[16][256];
158     int cx_line[16];
159     int cx_ptr = 0;
160 fabian 1.10 #endif
161 segfault 1.1
162 fabian 1.27
163 fabian 1.44 void fatal(const char *s, int recoverable)
164 segfault 1.1 {
165     int i;
166    
167     putlog(LOG_MISC, "*", "* %s", s);
168     flushlogs();
169     for (i = 0; i < dcc_total; i++)
170 fabian 1.19 if (dcc[i].sock >= 0)
171 fabian 1.15 killsock(dcc[i].sock);
172 segfault 1.1 unlink(pid_file);
173 fabian 1.43 if (!recoverable) {
174     bg_send_quit(BG_ABORT);
175 segfault 1.1 exit(1);
176 fabian 1.43 }
177 segfault 1.1 }
178    
179     static void check_expired_dcc()
180     {
181     int i;
182    
183     for (i = 0; i < dcc_total; i++)
184     if (dcc[i].type && dcc[i].type->timeout_val &&
185     ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
186     if (dcc[i].type->timeout)
187     dcc[i].type->timeout(i);
188     else if (dcc[i].type->eof)
189     dcc[i].type->eof(i);
190     else
191     continue;
192 fabian 1.27 /* Only timeout 1 socket per cycle, too risky for more */
193 segfault 1.1 return;
194     }
195     }
196    
197 fabian 1.11 #ifdef DEBUG_CONTEXT
198 fabian 1.27 static int nested_debug = 0;
199 segfault 1.1
200     void write_debug()
201     {
202     int x;
203 guppy 1.49 char s[25];
204 segfault 1.1 int y;
205    
206     if (nested_debug) {
207 fabian 1.27 /* Yoicks, if we have this there's serious trouble!
208     * All of these are pretty reliable, so we'll try these.
209 guppy 1.56 *
210 fabian 1.27 * NOTE: dont try and display context-notes in here, it's
211     * _not_ safe <cybah>
212     */
213 segfault 1.1 x = creat("DEBUG.DEBUG", 0644);
214     setsock(x, SOCK_NONSOCK);
215     if (x >= 0) {
216 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
217 guppy 1.57 dprintf(-x, "Debug (%s) written %s\n", ver, s);
218 guppy 1.60 dprintf(-x, "Please report problem to bugs@eggheads.org\n");
219 guppy 1.57 dprintf(-x, "after a visit to http://www.eggheads.org/bugzilla/\n");
220 segfault 1.1 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
221     dprintf(-x, "Context: ");
222     cx_ptr = cx_ptr & 15;
223     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
224     dprintf(-x, "%s/%d,\n ", cx_file[y], cx_line[y]);
225     dprintf(-x, "%s/%d\n\n", cx_file[y], cx_line[y]);
226     killsock(x);
227     close(x);
228     }
229 fabian 1.43 bg_send_quit(BG_ABORT);
230 fabian 1.27 exit(1); /* Dont even try & tell people about, that may
231     have caused the fault last time. */
232 segfault 1.1 } else
233     nested_debug = 1;
234     putlog(LOG_MISC, "*", "* Last context: %s/%d [%s]", cx_file[cx_ptr],
235     cx_line[cx_ptr], cx_note[cx_ptr][0] ? cx_note[cx_ptr] : "");
236 fabian 1.2 putlog(LOG_MISC, "*", "* Please REPORT this BUG!");
237     putlog(LOG_MISC, "*", "* Check doc/BUG-REPORT on how to do so.");
238 fabian 1.9 x = creat("DEBUG", 0644);
239 segfault 1.1 setsock(x, SOCK_NONSOCK);
240     if (x < 0) {
241     putlog(LOG_MISC, "*", "* Failed to write DEBUG");
242     } else {
243 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
244 guppy 1.57 dprintf(-x, "Debug (%s) written %s\n", ver, s);
245 segfault 1.1 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
246     #ifdef STATIC
247     dprintf(-x, "STATICALLY LINKED\n");
248     #endif
249 guppy 1.51
250     /* info library */
251 poptix 1.65 dprintf(-x, "TCL library: %s\n",
252 guppy 1.51 ((interp) && (Tcl_Eval(interp, "info library") == TCL_OK)) ?
253     interp->result : "*unknown*");
254    
255 guppy 1.74 /* info tclversion/patchlevel */
256 poptix 1.65 dprintf(-x, "TCL version: %s (header version %s)\n",
257 guppy 1.51 ((interp) && (Tcl_Eval(interp, "info patchlevel") == TCL_OK)) ?
258 guppy 1.74 interp->result : (Tcl_Eval(interp, "info tclversion") == TCL_OK) ?
259     interp->result : "*unknown*", TCL_PATCH_LEVEL ? TCL_PATCH_LEVEL :
260     "*unknown*");
261 poptix 1.65
262     #if HAVE_TCL_THREADS
263     dprintf(-x, "TCL is threaded\n");
264     #endif
265 guppy 1.51
266     #ifdef CCFLAGS
267 segfault 1.1 dprintf(-x, "Compile flags: %s\n", CCFLAGS);
268 guppy 1.51 #endif
269     #ifdef LDFLAGS
270 guppy 1.64 dprintf(-x, "Link flags: %s\n", LDFLAGS);
271 guppy 1.51 #endif
272     #ifdef STRIPFLAGS
273 guppy 1.64 dprintf(-x, "Strip flags: %s\n", STRIPFLAGS);
274 guppy 1.51 #endif
275    
276 segfault 1.1 dprintf(-x, "Context: ");
277     cx_ptr = cx_ptr & 15;
278     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
279     dprintf(-x, "%s/%d, [%s]\n ", cx_file[y], cx_line[y],
280     (cx_note[y][0]) ? cx_note[y] : "");
281     dprintf(-x, "%s/%d [%s]\n\n", cx_file[cx_ptr], cx_line[cx_ptr],
282     (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
283     tell_dcc(-x);
284     dprintf(-x, "\n");
285 tothwolf 1.79 tell_netdebug(-x);
286 segfault 1.1 killsock(x);
287     close(x);
288     putlog(LOG_MISC, "*", "* Wrote DEBUG");
289     }
290     }
291 fabian 1.10 #endif
292 fabian 1.2
293 segfault 1.1 static void got_bus(int z)
294     {
295 fabian 1.11 #ifdef DEBUG_CONTEXT
296 segfault 1.1 write_debug();
297 fabian 1.10 #endif
298 segfault 1.1 fatal("BUS ERROR -- CRASHING!", 1);
299     #ifdef SA_RESETHAND
300     kill(getpid(), SIGBUS);
301     #else
302 fabian 1.43 bg_send_quit(BG_ABORT);
303 segfault 1.1 exit(1);
304     #endif
305     }
306    
307     static void got_segv(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("SEGMENT VIOLATION -- CRASHING!", 1);
313     #ifdef SA_RESETHAND
314     kill(getpid(), SIGSEGV);
315     #else
316 fabian 1.43 bg_send_quit(BG_ABORT);
317 segfault 1.1 exit(1);
318     #endif
319     }
320    
321     static void got_fpe(int z)
322     {
323 fabian 1.11 #ifdef DEBUG_CONTEXT
324 segfault 1.1 write_debug();
325 fabian 1.10 #endif
326 segfault 1.1 fatal("FLOATING POINT ERROR -- CRASHING!", 0);
327     }
328    
329     static void got_term(int z)
330     {
331     write_userfile(-1);
332     check_tcl_event("sigterm");
333     if (die_on_sigterm) {
334     fatal("TERMINATE SIGNAL -- SIGNING OFF", 0);
335     } else {
336     putlog(LOG_MISC, "*", "RECEIVED TERMINATE SIGNAL (IGNORING)");
337     }
338     }
339    
340     static void got_quit(int z)
341     {
342     check_tcl_event("sigquit");
343     putlog(LOG_MISC, "*", "RECEIVED QUIT SIGNAL (IGNORING)");
344     return;
345     }
346    
347     static void got_hup(int z)
348     {
349     write_userfile(-1);
350     check_tcl_event("sighup");
351     if (die_on_sighup) {
352     fatal("HANGUP SIGNAL -- SIGNING OFF", 0);
353     } else
354     putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
355     do_restart = -2;
356     return;
357     }
358    
359 fabian 1.27 /* A call to resolver (gethostbyname, etc) timed out
360     */
361 segfault 1.1 static void got_alarm(int z)
362     {
363     longjmp(alarmret, 1);
364 fabian 1.27
365     /* -Never reached- */
366 segfault 1.1 }
367    
368 fabian 1.27 /* Got ILL signal -- log context and continue
369     */
370 segfault 1.1 static void got_ill(int z)
371     {
372     check_tcl_event("sigill");
373 fabian 1.11 #ifdef DEBUG_CONTEXT
374 segfault 1.1 putlog(LOG_MISC, "*", "* Context: %s/%d [%s]", cx_file[cx_ptr],
375     cx_line[cx_ptr], (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
376 fabian 1.5 #endif
377 segfault 1.1 }
378    
379 fabian 1.11 #ifdef DEBUG_CONTEXT
380 fabian 1.10 /* Context */
381 fabian 1.44 void eggContext(const char *file, int line, const char *module)
382 fabian 1.10 {
383 fabian 1.39 char x[31], *p;
384 fabian 1.10
385 fabian 1.39 p = strrchr(file, '/');
386     if (!module) {
387 guppy 1.49 strncpyz(x, p ? p + 1 : file, sizeof x);
388 fabian 1.39 } else
389     egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
390 fabian 1.10 cx_ptr = ((cx_ptr + 1) & 15);
391     strcpy(cx_file[cx_ptr], x);
392     cx_line[cx_ptr] = line;
393     cx_note[cx_ptr][0] = 0;
394     }
395    
396 fabian 1.27 /* Called from the ContextNote macro.
397     */
398 fabian 1.44 void eggContextNote(const char *file, int line, const char *module,
399     const char *note)
400 fabian 1.10 {
401 fabian 1.39 char x[31], *p;
402 fabian 1.10
403 fabian 1.39 p = strrchr(file, '/');
404     if (!module) {
405 guppy 1.49 strncpyz(x, p ? p + 1 : file, sizeof x);
406 fabian 1.39 } else
407     egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
408 fabian 1.10 cx_ptr = ((cx_ptr + 1) & 15);
409     strcpy(cx_file[cx_ptr], x);
410     cx_line[cx_ptr] = line;
411 guppy 1.49 strncpyz(cx_note[cx_ptr], note, sizeof cx_note[cx_ptr]);
412 fabian 1.10 }
413 fabian 1.11 #endif
414 fabian 1.10
415 fabian 1.11 #ifdef DEBUG_ASSERT
416 fabian 1.27 /* Called from the Assert macro.
417     */
418 fabian 1.44 void eggAssert(const char *file, int line, const char *module)
419 fabian 1.10 {
420 fabian 1.11 #ifdef DEBUG_CONTEXT
421 fabian 1.44 write_debug();
422 fabian 1.11 #endif
423 fabian 1.44 if (!module)
424     putlog(LOG_MISC, "*", "* In file %s, line %u", file, line);
425     else
426     putlog(LOG_MISC, "*", "* In file %s:%s, line %u", module, file, line);
427     fatal("ASSERT FAILED -- CRASHING!", 1);
428 fabian 1.10 }
429     #endif
430    
431 segfault 1.1 static void do_arg(char *s)
432     {
433 guppy 1.49 char x[1024], *z = x;
434 segfault 1.1 int i;
435    
436     if (s[0] == '-')
437     for (i = 1; i < strlen(s); i++) {
438 guppy 1.49 switch (s[i]) {
439     case 'n':
440 segfault 1.1 backgrd = 0;
441 guppy 1.49 break;
442     case 'c':
443 segfault 1.1 con_chan = 1;
444     term_z = 0;
445 guppy 1.49 break;
446     case 't':
447 segfault 1.1 con_chan = 0;
448     term_z = 1;
449 guppy 1.49 break;
450     case 'm':
451 segfault 1.1 make_userfile = 1;
452 guppy 1.49 break;
453     case 'v':
454     strncpyz(x, egg_version, sizeof x);
455 segfault 1.1 newsplit(&z);
456     newsplit(&z);
457     printf("%s\n", version);
458     if (z[0])
459     printf(" (patches: %s)\n", z);
460 fabian 1.43 bg_send_quit(BG_ABORT);
461 segfault 1.1 exit(0);
462 guppy 1.49 break; /* this should never be reached */
463     case 'h':
464 segfault 1.1 printf("\n%s\n\n", version);
465 ite 1.73 printf(_("Command line arguments:\n\
466     -h help\n\
467     -v print version and exit\n\
468     -n don't go into the background\n\
469     -c (with -n) display channel stats every 10 seconds\n\
470     -t (with -n) use terminal to simulate dcc-chat\n\
471     -m userfile creation mode\n\
472     optional config filename (default 'eggdrop.conf')\n"));
473 segfault 1.1 printf("\n");
474 fabian 1.43 bg_send_quit(BG_ABORT);
475 segfault 1.1 exit(0);
476 guppy 1.49 break; /* this should never be reached */
477 segfault 1.1 }
478     } else
479 guppy 1.49 strncpyz(configfile, s, sizeof configfile);
480 segfault 1.1 }
481    
482 fabian 1.44 void backup_userfile(void)
483 segfault 1.1 {
484 guppy 1.49 char s[125];
485 segfault 1.1
486 ite 1.73 putlog(LOG_MISC, "*", _("Backing up user file..."));
487 guppy 1.49 egg_snprintf(s, sizeof s, "%s~bak", userfile);
488 segfault 1.1 copyfile(userfile, s);
489     }
490    
491 fabian 1.27 /* Timer info */
492     static int lastmin = 99;
493     static time_t then;
494     static struct tm nowtm;
495 segfault 1.1
496 fabian 1.34 /* Called once a second.
497     *
498     * Note: Try to not put any Context lines in here (guppy 21Mar2000).
499 fabian 1.27 */
500 segfault 1.1 static void core_secondly()
501     {
502     static int cnt = 0;
503     int miltime;
504    
505 fabian 1.27 do_check_timers(&utimer); /* Secondly timers */
506 segfault 1.1 cnt++;
507 fabian 1.27 if (cnt >= 10) { /* Every 10 seconds */
508 segfault 1.1 cnt = 0;
509     check_expired_dcc();
510     if (con_chan && !backgrd) {
511     dprintf(DP_STDOUT, "\033[2J\033[1;1H");
512     tell_verbose_status(DP_STDOUT);
513     do_module_report(DP_STDOUT, 0, "server");
514     do_module_report(DP_STDOUT, 0, "channels");
515     }
516     }
517 tothwolf 1.79 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
518 fabian 1.17 if (nowtm.tm_min != lastmin) {
519 segfault 1.1 int i = 0;
520    
521 fabian 1.27 /* Once a minute */
522 segfault 1.1 lastmin = (lastmin + 1) % 60;
523     call_hook(HOOK_MINUTELY);
524     check_expired_ignores();
525 fabian 1.27 autolink_cycle(NULL); /* Attempt autolinks */
526     /* In case for some reason more than 1 min has passed: */
527 fabian 1.17 while (nowtm.tm_min != lastmin) {
528 fabian 1.27 /* Timer drift, dammit */
529 fabian 1.17 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
530 segfault 1.1 i++;
531     lastmin = (lastmin + 1) % 60;
532     call_hook(HOOK_MINUTELY);
533     }
534     if (i > 1)
535     putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
536 fabian 1.17 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
537     if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
538 segfault 1.1 call_hook(HOOK_5MINUTELY);
539 guppy 1.49 if (!quick_logs) {
540 segfault 1.1 flushlogs();
541     check_logsize();
542     }
543 guppy 1.49 if (!miltime) { /* At midnight */
544     char s[25];
545 segfault 1.1 int j;
546    
547 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
548 fabian 1.4 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
549 guppy 1.69 call_hook(HOOK_BACKUP);
550 segfault 1.1 for (j = 0; j < max_logs; j++) {
551     if (logs[j].filename != NULL && logs[j].f != NULL) {
552     fclose(logs[j].f);
553     logs[j].f = NULL;
554     }
555     }
556     }
557     }
558 fabian 1.17 if (nowtm.tm_min == notify_users_at)
559 segfault 1.1 call_hook(HOOK_HOURLY);
560 fabian 1.27 /* These no longer need checking since they are all check vs minutely
561     * settings and we only get this far on the minute.
562     */
563 segfault 1.1 if (miltime == switch_logfiles_at) {
564     call_hook(HOOK_DAILY);
565     if (!keep_all_logs) {
566 ite 1.73 putlog(LOG_MISC, "*", _("Switching logfiles..."));
567 segfault 1.1 for (i = 0; i < max_logs; i++)
568     if (logs[i].filename) {
569     char s[1024];
570    
571     if (logs[i].f) {
572     fclose(logs[i].f);
573     logs[i].f = NULL;
574     }
575 guppy 1.49 egg_snprintf(s, sizeof s, "%s.yesterday", logs[i].filename);
576 segfault 1.1 unlink(s);
577 fabian 1.2 movefile(logs[i].filename, s);
578 segfault 1.1 }
579     }
580     }
581     }
582     }
583    
584     static void core_minutely()
585     {
586 fabian 1.17 check_tcl_time(&nowtm);
587 segfault 1.1 do_check_timers(&timer);
588     if (quick_logs != 0) {
589     flushlogs();
590     check_logsize();
591     }
592     }
593    
594     static void core_hourly()
595     {
596     write_userfile(-1);
597     }
598    
599     static void event_rehash()
600     {
601     check_tcl_event("rehash");
602     }
603    
604     static void event_prerehash()
605     {
606     check_tcl_event("prerehash");
607     }
608    
609     static void event_save()
610     {
611     check_tcl_event("save");
612     }
613    
614     static void event_logfile()
615     {
616     check_tcl_event("logfile");
617     }
618    
619 fabian 1.13 static void event_resettraffic()
620     {
621     otraffic_irc += otraffic_irc_today;
622     itraffic_irc += itraffic_irc_today;
623     otraffic_bn += otraffic_bn_today;
624     itraffic_bn += itraffic_bn_today;
625     otraffic_dcc += otraffic_dcc_today;
626     itraffic_dcc += itraffic_dcc_today;
627     otraffic_unknown += otraffic_unknown_today;
628     itraffic_unknown += itraffic_unknown_today;
629     otraffic_trans += otraffic_trans_today;
630     itraffic_trans += itraffic_trans_today;
631     otraffic_irc_today = otraffic_bn_today = 0;
632     otraffic_dcc_today = otraffic_unknown_today = 0;
633     itraffic_irc_today = itraffic_bn_today = 0;
634     itraffic_dcc_today = itraffic_unknown_today = 0;
635 fabian 1.18 itraffic_trans_today = otraffic_trans_today = 0;
636 fabian 1.13 }
637    
638 guppy 1.61 static void event_loaded()
639     {
640     check_tcl_event("loaded");
641     }
642    
643 segfault 1.1 void kill_tcl();
644     extern module_entry *module_list;
645     void restart_chons();
646    
647     #ifdef STATIC
648     void check_static(char *, char *(*)());
649    
650     #include "mod/static.h"
651     #endif
652 tothwolf 1.79 int init_dcc_max(), init_userent(), init_misc(), init_net(),
653     init_modules(), init_tcl(int, char **);
654 stdarg 1.78 void botnet_init();
655 stdarg 1.80 void init_binds();
656 fabian 1.11
657 fabian 1.44 void patch(const char *str)
658 fabian 1.11 {
659     char *p = strchr(egg_version, '+');
660    
661     if (!p)
662     p = &egg_version[strlen(egg_version)];
663     sprintf(p, "+%s", str);
664     egg_numver++;
665     sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
666     }
667 segfault 1.1
668 fabian 1.45 static inline void garbage_collect(void)
669     {
670     static u_8bit_t run_cnt = 0;
671    
672     if (run_cnt == 3)
673     garbage_collect_tclhash();
674     else
675     run_cnt++;
676     }
677    
678 segfault 1.1 int main(int argc, char **argv)
679     {
680     int xx, i;
681 guppy 1.49 char buf[520], s[25];
682 segfault 1.1 FILE *f;
683     struct sigaction sv;
684     struct chanset_t *chan;
685    
686 tothwolf 1.79 #ifdef DEBUG_ASSERT
687 fabian 1.21 /* Make sure it can write core, if you make debug. Else it's pretty
688     * useless (dw)
689     */
690 fabian 1.15 {
691     #include <sys/resource.h>
692     struct rlimit cdlim;
693 fabian 1.21
694 fabian 1.15 cdlim.rlim_cur = RLIM_INFINITY;
695     cdlim.rlim_max = RLIM_INFINITY;
696 fabian 1.32 setrlimit(RLIMIT_CORE, &cdlim);
697 fabian 1.15 }
698     #endif
699    
700 fabian 1.27 /* Initialise context list */
701 fabian 1.32 for (i = 0; i < 16; i++)
702 fabian 1.10 Context;
703 fabian 1.32
704 ite 1.76 setlocale(LC_MESSAGES, "");
705     bindtextdomain(PACKAGE, LOCALEDIR);
706     textdomain(PACKAGE);
707    
708 segfault 1.1 #include "patch.h"
709 fabian 1.27 /* Version info! */
710 guppy 1.49 egg_snprintf(ver, sizeof ver, "eggdrop v%s", egg_version);
711 guppy 1.56 egg_snprintf(version, sizeof version, "Eggdrop v%s (C)1997 Robey Pointer (C)2001 Eggheads",
712     egg_version);
713 fabian 1.27 /* Now add on the patchlevel (for Tcl) */
714 fabian 1.2 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
715 segfault 1.1 strcat(egg_version, egg_xtra);
716     #ifdef STOP_UAC
717     {
718     int nvpair[2];
719    
720     nvpair[0] = SSIN_UACPROC;
721     nvpair[1] = UAC_NOPRINT;
722     setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
723     }
724     #endif
725 fabian 1.27
726     /* Set up error traps: */
727 segfault 1.1 sv.sa_handler = got_bus;
728     sigemptyset(&sv.sa_mask);
729     #ifdef SA_RESETHAND
730     sv.sa_flags = SA_RESETHAND;
731     #else
732     sv.sa_flags = 0;
733     #endif
734     sigaction(SIGBUS, &sv, NULL);
735     sv.sa_handler = got_segv;
736     sigaction(SIGSEGV, &sv, NULL);
737     #ifdef SA_RESETHAND
738     sv.sa_flags = 0;
739     #endif
740     sv.sa_handler = got_fpe;
741     sigaction(SIGFPE, &sv, NULL);
742     sv.sa_handler = got_term;
743     sigaction(SIGTERM, &sv, NULL);
744     sv.sa_handler = got_hup;
745     sigaction(SIGHUP, &sv, NULL);
746     sv.sa_handler = got_quit;
747     sigaction(SIGQUIT, &sv, NULL);
748     sv.sa_handler = SIG_IGN;
749     sigaction(SIGPIPE, &sv, NULL);
750     sv.sa_handler = got_ill;
751     sigaction(SIGILL, &sv, NULL);
752     sv.sa_handler = got_alarm;
753     sigaction(SIGALRM, &sv, NULL);
754 fabian 1.27
755     /* Initialize variables and stuff */
756 segfault 1.1 now = time(NULL);
757     chanset = NULL;
758 tothwolf 1.79 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
759 fabian 1.17 lastmin = nowtm.tm_min;
760 poptix 1.63 srandom(now % (getpid() + getppid()));
761 segfault 1.1 if (argc > 1)
762     for (i = 1; i < argc; i++)
763     do_arg(argv[i]);
764     printf("\n%s\n", version);
765 guppy 1.53
766     /* Don't allow eggdrop to run as root */
767     if (((int) getuid() == 0) || ((int) geteuid() == 0))
768 ite 1.76 fatal(_("ERROR: Eggdrop will not run as root!"), 0);
769 guppy 1.53
770 stdarg 1.80 init_binds();
771 segfault 1.1 init_dcc_max();
772     init_userent();
773     init_misc();
774 stdarg 1.78 botnet_init();
775 segfault 1.1 init_net();
776     init_modules();
777 stdarg 1.80
778 fabian 1.43 if (backgrd)
779     bg_prepare_split();
780 stdarg 1.80
781 fabian 1.8 init_tcl(argc, argv);
782 stdarg 1.80
783 segfault 1.1 #ifdef STATIC
784     link_statics();
785     #endif
786 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
787 segfault 1.1 strcpy(&s[11], &s[20]);
788     putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
789     chanprog();
790 guppy 1.49 if (!encrypt_pass) {
791 ite 1.73 printf(_("You have installed modules but have not selected an encryption\n\
792     module, please consult the default config file for info.\n"));
793 fabian 1.43 bg_send_quit(BG_ABORT);
794 segfault 1.1 exit(1);
795     }
796     i = 0;
797     for (chan = chanset; chan; chan = chan->next)
798     i++;
799 fabian 1.4 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
800 segfault 1.1 botnetnick, i, count_users(userlist));
801     cache_miss = 0;
802     cache_hit = 0;
803 guppy 1.49 egg_snprintf(pid_file, sizeof pid_file, "pid.%s", botnetnick);
804 fabian 1.27
805     /* Check for pre-existing eggdrop! */
806 segfault 1.1 f = fopen(pid_file, "r");
807     if (f != NULL) {
808     fgets(s, 10, f);
809     xx = atoi(s);
810 fabian 1.27 kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
811     is used */
812 segfault 1.1 if (errno != ESRCH) {
813 ite 1.73 printf(_("I detect %s already running from this directory.\n"), origbotname);
814     printf(_("If this is incorrect, erase the %s\n"), pid_file);
815 fabian 1.43 bg_send_quit(BG_ABORT);
816 segfault 1.1 exit(1);
817     }
818     }
819 fabian 1.27
820     /* Move into background? */
821 segfault 1.1 if (backgrd) {
822 fabian 1.38 #ifndef CYGWIN_HACKS
823 fabian 1.43 bg_do_split();
824 fabian 1.38 } else { /* !backgrd */
825 fabian 1.5 #endif
826 fabian 1.38 xx = getpid();
827     if (xx != 0) {
828     FILE *fp;
829    
830     /* Write pid to file */
831     unlink(pid_file);
832     fp = fopen(pid_file, "w");
833     if (fp != NULL) {
834     fprintf(fp, "%u\n", xx);
835     if (fflush(fp)) {
836     /* Let the bot live since this doesn't appear to be a botchk */
837 ite 1.73 printf(_("* Warning! Could not write %s file!\n"), pid_file);
838 fabian 1.38 fclose(fp);
839     unlink(pid_file);
840     } else
841     fclose(fp);
842 fabian 1.27 } else
843 ite 1.73 printf(_("* Warning! Could not write %s file!\n"), pid_file);
844 fabian 1.38 #ifdef CYGWIN_HACKS
845 guppy 1.68 printf("Launched into the background (pid: %d)\n\n", xx);
846 fabian 1.38 #endif
847     }
848 segfault 1.1 }
849 fabian 1.38
850     use_stderr = 0; /* Stop writing to stderr now */
851 segfault 1.1 if (backgrd) {
852 fabian 1.27 /* Ok, try to disassociate from controlling terminal (finger cross) */
853 fabian 1.5 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
854 segfault 1.1 setpgid(0, 0);
855     #endif
856 fabian 1.38 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
857 segfault 1.1 freopen("/dev/null", "r", stdin);
858     freopen("/dev/null", "w", stdout);
859     freopen("/dev/null", "w", stderr);
860 poptix 1.62 #ifdef CYGWIN_HACKS
861     FreeConsole();
862     #endif
863 segfault 1.1 }
864 fabian 1.27
865     /* Terminal emulating dcc chat */
866 fabian 1.42 if (!backgrd && term_z) {
867 segfault 1.1 int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
868    
869 drummer 1.71 dcc[n].addr[0] = '\0';
870 segfault 1.1 dcc[n].sock = STDOUT;
871     dcc[n].timeval = now;
872     dcc[n].u.chat->con_flags = conmask;
873     dcc[n].u.chat->strip_flags = STRIP_ALL;
874     dcc[n].status = STAT_ECHO;
875     strcpy(dcc[n].nick, "HQ");
876     strcpy(dcc[n].host, "llama@console");
877     dcc[n].user = get_user_by_handle(userlist, "HQ");
878 fabian 1.27 /* Make sure there's an innocuous HQ user if needed */
879 segfault 1.1 if (!dcc[n].user) {
880 fabian 1.24 userlist = adduser(userlist, "HQ", "none", "-", USER_PARTY);
881 segfault 1.1 dcc[n].user = get_user_by_handle(userlist, "HQ");
882     }
883 fabian 1.27 setsock(STDOUT, 0); /* Entry in net table */
884 segfault 1.1 dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
885     dcc_chatter(n);
886     }
887 fabian 1.27
888 segfault 1.1 then = now;
889     online_since = now;
890 fabian 1.27 autolink_cycle(NULL); /* Hurry and connect to tandem bots */
891 segfault 1.1 add_help_reference("cmds1.help");
892     add_help_reference("cmds2.help");
893     add_help_reference("core.help");
894 fabian 1.22 add_hook(HOOK_SECONDLY, (Function) core_secondly);
895     add_hook(HOOK_MINUTELY, (Function) core_minutely);
896     add_hook(HOOK_HOURLY, (Function) core_hourly);
897     add_hook(HOOK_REHASH, (Function) event_rehash);
898     add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
899     add_hook(HOOK_USERFILE, (Function) event_save);
900 guppy 1.69 add_hook(HOOK_BACKUP, (Function) backup_userfile);
901 fabian 1.22 add_hook(HOOK_DAILY, (Function) event_logfile);
902     add_hook(HOOK_DAILY, (Function) event_resettraffic);
903 guppy 1.61 add_hook(HOOK_LOADED, (Function) event_loaded);
904    
905     call_hook(HOOK_LOADED);
906 segfault 1.1
907     debug0("main: entering loop");
908     while (1) {
909     int socket_cleanup = 0;
910    
911 fabian 1.43 #if !defined(HAVE_PRE7_5_TCL)
912 fabian 1.27 /* Process a single tcl event */
913 segfault 1.1 Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
914 fabian 1.5 #endif
915 fabian 1.45
916 fabian 1.27 /* Lets move some of this here, reducing the numer of actual
917     * calls to periodic_timers
918     */
919 segfault 1.1 now = time(NULL);
920 fabian 1.27 random(); /* Woop, lets really jumble things */
921     if (now != then) { /* Once a second */
922 segfault 1.1 call_hook(HOOK_SECONDLY);
923     then = now;
924     }
925 fabian 1.45
926     /* Only do this every so often. */
927 segfault 1.1 if (!socket_cleanup) {
928 fabian 1.45 socket_cleanup = 5;
929    
930     /* Remove dead dcc entries. */
931 fabian 1.16 dcc_remove_lost();
932 fabian 1.45
933     /* Check for server or dcc activity. */
934 segfault 1.1 dequeue_sockets();
935     } else
936     socket_cleanup--;
937 fabian 1.45
938     /* Free unused structures. */
939     garbage_collect();
940    
941 segfault 1.1 xx = sockgets(buf, &i);
942 fabian 1.27 if (xx >= 0) { /* Non-error */
943 segfault 1.1 int idx;
944    
945     for (idx = 0; idx < dcc_total; idx++)
946     if (dcc[idx].sock == xx) {
947 fabian 1.13 if (dcc[idx].type && dcc[idx].type->activity) {
948 fabian 1.27 /* Traffic stats */
949     if (dcc[idx].type->name) {
950     if (!strncmp(dcc[idx].type->name, "BOT", 3))
951     itraffic_bn_today += strlen(buf) + 1;
952     else if (!strcmp(dcc[idx].type->name, "SERVER"))
953     itraffic_irc_today += strlen(buf) + 1;
954     else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
955     itraffic_dcc_today += strlen(buf) + 1;
956     else if (!strncmp(dcc[idx].type->name, "FILES", 5))
957     itraffic_dcc_today += strlen(buf) + 1;
958     else if (!strcmp(dcc[idx].type->name, "SEND"))
959     itraffic_trans_today += strlen(buf) + 1;
960     else if (!strncmp(dcc[idx].type->name, "GET", 3))
961     itraffic_trans_today += strlen(buf) + 1;
962     else
963     itraffic_unknown_today += strlen(buf) + 1;
964     }
965 guppy 1.56 dcc[idx].type->activity(idx, buf, i);
966 fabian 1.13 } else
967 segfault 1.1 putlog(LOG_MISC, "*",
968     "!!! untrapped dcc activity: type %s, sock %d",
969     dcc[idx].type->name, dcc[idx].sock);
970     break;
971     }
972     } else if (xx == -1) { /* EOF from someone */
973     int idx;
974    
975 fabian 1.45 if (i == STDOUT && !backgrd)
976 segfault 1.1 fatal("END OF FILE ON TERMINAL", 0);
977     for (idx = 0; idx < dcc_total; idx++)
978     if (dcc[idx].sock == i) {
979     if (dcc[idx].type && dcc[idx].type->eof)
980     dcc[idx].type->eof(idx);
981     else {
982     putlog(LOG_MISC, "*",
983     "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
984 fabian 1.2 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
985     killsock(i);
986 segfault 1.1 lostdcc(idx);
987     }
988     idx = dcc_total + 1;
989     }
990     if (idx == dcc_total) {
991     putlog(LOG_MISC, "*",
992 fabian 1.2 "(@) EOF socket %d, not a dcc socket, not anything.", i);
993     close(i);
994     killsock(i);
995 segfault 1.1 }
996 fabian 1.45 } else if (xx == -2 && errno != EINTR) { /* select() error */
997 segfault 1.1 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
998     for (i = 0; i < dcc_total; i++) {
999     if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
1000     putlog(LOG_MISC, "*",
1001     "DCC socket %d (type %d, name '%s') expired -- pfft",
1002     dcc[i].sock, dcc[i].type, dcc[i].nick);
1003     killsock(dcc[i].sock);
1004     lostdcc(i);
1005     i--;
1006     }
1007     }
1008 fabian 1.45 } else if (xx == -3) {
1009 segfault 1.1 call_hook(HOOK_IDLE);
1010 fabian 1.27 socket_cleanup = 0; /* If we've been idle, cleanup & flush */
1011 segfault 1.1 }
1012 fabian 1.27
1013 segfault 1.1 if (do_restart) {
1014     if (do_restart == -2)
1015     rehash();
1016     else {
1017 fabian 1.27 /* Unload as many modules as possible */
1018 segfault 1.1 int f = 1;
1019     module_entry *p;
1020     Function x;
1021     char xx[256];
1022 guppy 1.59
1023     /* oops, I guess we should call this event before tcl is restarted */
1024 stdarg 1.77 check_tcl_event("prerestart");
1025 segfault 1.1
1026     while (f) {
1027     f = 0;
1028     for (p = module_list; p != NULL; p = p->next) {
1029     dependancy *d = dependancy_list;
1030     int ok = 1;
1031    
1032     while (ok && d) {
1033     if (d->needed == p)
1034     ok = 0;
1035     d = d->next;
1036     }
1037     if (ok) {
1038     strcpy(xx, p->name);
1039     if (module_unload(xx, origbotname) == NULL) {
1040     f = 1;
1041     break;
1042     }
1043     }
1044     }
1045     }
1046     p = module_list;
1047     if (p && p->next && p->next->next)
1048 fabian 1.45 /* Should be only 2 modules now - blowfish (or some other
1049     encryption module) and eggdrop. */
1050 ite 1.73 putlog(LOG_MISC, "*", _("Stagnant module; there WILL be memory leaks!"));
1051 segfault 1.1 flushlogs();
1052     kill_tcl();
1053 fabian 1.8 init_tcl(argc, argv);
1054 fabian 1.30 /* We expect the encryption module as the current module pointed
1055     * to by `module_list'.
1056     */
1057 segfault 1.1 x = p->funcs[MODCALL_START];
1058 fabian 1.30 /* `NULL' indicates that we just recently restarted. The module
1059     * is expected to re-initialise as needed.
1060     */
1061     x(NULL);
1062 segfault 1.1 rehash();
1063     restart_chons();
1064 guppy 1.61 call_hook(HOOK_LOADED);
1065 segfault 1.1 }
1066     do_restart = 0;
1067     }
1068     }
1069     }

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