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

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Revision 1.72 - (hide annotations) (download) (as text)
Tue Jul 31 16:40:40 2001 UTC (18 years ago) by guppy
Branch: MAIN
Changes since 1.71: +2 -1 lines
File MIME type: text/x-chdr
sync'd 1.7 to the latest 1.6

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 guppy 1.72 * $Id: main.c,v 1.71 2001/07/26 17:04:33 drummer 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     #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 guppy 1.49
50 segfault 1.1 #include "chan.h"
51     #include "modules.h"
52     #include "tandem.h"
53 fabian 1.43 #include "bg.h"
54 fabian 1.38
55 drummer 1.71 #include "adns/adns.h"
56    
57 poptix 1.62 #ifdef CYGWIN_HACKS
58     #include <windows.h>
59     #endif
60    
61 segfault 1.1 #ifndef _POSIX_SOURCE
62 fabian 1.27 /* Solaris needs this */
63 segfault 1.1 #define _POSIX_SOURCE 1
64     #endif
65    
66 fabian 1.27 extern char origbotname[], userfile[], botnetnick[];
67     extern int dcc_total, conmask, cache_hit, cache_miss,
68     max_logs, quick_logs;
69     extern struct dcc_t *dcc;
70     extern struct userrec *userlist;
71     extern struct chanset_t *chanset;
72     extern log_t *logs;
73     extern Tcl_Interp *interp;
74     extern tcl_timer_t *timer,
75     *utimer;
76     extern jmp_buf alarmret;
77    
78 segfault 1.1
79 guppy 1.56 /*
80 segfault 1.1 * Please use the PATCH macro instead of directly altering the version
81     * string from now on (it makes it much easier to maintain patches).
82     * Also please read the README file regarding your rights to distribute
83     * modified versions of this bot.
84     */
85    
86 guppy 1.70 char egg_version[1024] = "1.7.0";
87     int egg_numver = 1070000;
88 segfault 1.1
89 fabian 1.27 char notify_new[121] = ""; /* Person to send a note to for new users */
90     int default_flags = 0; /* Default user flags and */
91     int default_uflags = 0; /* Default userdefinied flags for people
92     who say 'hello' or for .adduser */
93    
94     int backgrd = 1; /* Run in the background? */
95     int con_chan = 0; /* Foreground: constantly display channel
96     stats? */
97     int term_z = 0; /* Foreground: use the terminal as a party
98     line? */
99     char configfile[121] = "eggdrop.conf"; /* Name of the config file */
100     char helpdir[121]; /* Directory of help files (if used) */
101     char textdir[121] = ""; /* Directory for text files that get dumped */
102     int keep_all_logs = 0; /* Never erase logfiles, no matter how old
103     they are? */
104 fabian 1.40 char logfile_suffix[21] = ".%d%b%Y"; /* Format of logfile suffix. */
105 fabian 1.27 time_t online_since; /* Unix-time that the bot loaded up */
106     int make_userfile = 0; /* Using bot in make-userfile mode? (first
107     user to 'hello' becomes master) */
108     char owner[121] = ""; /* Permanent owner(s) of the bot */
109 guppy 1.49 char pid_file[HANDLEN + 5]; /* Name of the file for the pid to be
110 fabian 1.27 stored in */
111     int save_users_at = 0; /* How many minutes past the hour to
112     save the userfile? */
113     int notify_users_at = 0; /* How many minutes past the hour to
114     notify users of notes? */
115     int switch_logfiles_at = 300; /* When (military time) to switch logfiles */
116     char version[81]; /* Version info (long form) */
117     char ver[41]; /* Version info (short form) */
118     char egg_xtra[2048]; /* Patch info */
119     int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
120     int do_restart = 0; /* .restart has been called, restart asap */
121     int die_on_sighup = 0; /* die if bot receives SIGHUP */
122 guppy 1.52 int die_on_sigterm = 1; /* die if bot receives SIGTERM */
123 fabian 1.27 int resolve_timeout = 15; /* hostname/address lookup timeout */
124 guppy 1.72 char quit_msg[1024]; /* quit message */
125 fabian 1.27 time_t now; /* duh, now :) */
126    
127     /* Traffic stats
128     */
129 fabian 1.33 unsigned long otraffic_irc = 0;
130     unsigned long otraffic_irc_today = 0;
131     unsigned long otraffic_bn = 0;
132     unsigned long otraffic_bn_today = 0;
133     unsigned long otraffic_dcc = 0;
134     unsigned long otraffic_dcc_today = 0;
135     unsigned long otraffic_filesys = 0;
136     unsigned long otraffic_filesys_today = 0;
137     unsigned long otraffic_trans = 0;
138     unsigned long otraffic_trans_today = 0;
139     unsigned long otraffic_unknown = 0;
140     unsigned long otraffic_unknown_today = 0;
141     unsigned long itraffic_irc = 0;
142     unsigned long itraffic_irc_today = 0;
143     unsigned long itraffic_bn = 0;
144     unsigned long itraffic_bn_today = 0;
145     unsigned long itraffic_dcc = 0;
146     unsigned long itraffic_dcc_today = 0;
147     unsigned long itraffic_trans = 0;
148     unsigned long itraffic_trans_today = 0;
149     unsigned long itraffic_unknown = 0;
150     unsigned long itraffic_unknown_today = 0;
151 segfault 1.1
152 fabian 1.11 #ifdef DEBUG_CONTEXT
153 fabian 1.27 /* Context storage for fatal crashes */
154     char cx_file[16][30];
155     char cx_note[16][256];
156     int cx_line[16];
157     int cx_ptr = 0;
158 fabian 1.10 #endif
159 segfault 1.1
160 fabian 1.27
161 fabian 1.44 void fatal(const char *s, int recoverable)
162 segfault 1.1 {
163     int i;
164    
165     putlog(LOG_MISC, "*", "* %s", s);
166     flushlogs();
167     for (i = 0; i < dcc_total; i++)
168 fabian 1.19 if (dcc[i].sock >= 0)
169 fabian 1.15 killsock(dcc[i].sock);
170 segfault 1.1 unlink(pid_file);
171 fabian 1.43 if (!recoverable) {
172     bg_send_quit(BG_ABORT);
173 segfault 1.1 exit(1);
174 fabian 1.43 }
175 segfault 1.1 }
176    
177 fabian 1.27
178 segfault 1.1 int expmem_chanprog(), expmem_users(), expmem_misc(), expmem_dccutil(),
179     expmem_botnet(), expmem_tcl(), expmem_tclhash(), expmem_net(),
180     expmem_modules(int), expmem_language(), expmem_tcldcc();
181    
182 fabian 1.27 /* For mem.c : calculate memory we SHOULD be using
183     */
184 fabian 1.44 int expected_memory(void)
185 segfault 1.1 {
186     int tot;
187    
188     tot = expmem_chanprog() + expmem_users() + expmem_misc() +
189     expmem_dccutil() + expmem_botnet() + expmem_tcl() + expmem_tclhash() +
190     expmem_net() + expmem_modules(0) + expmem_language() + expmem_tcldcc();
191     return tot;
192     }
193    
194     static void check_expired_dcc()
195     {
196     int i;
197    
198     for (i = 0; i < dcc_total; i++)
199     if (dcc[i].type && dcc[i].type->timeout_val &&
200     ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
201     if (dcc[i].type->timeout)
202     dcc[i].type->timeout(i);
203     else if (dcc[i].type->eof)
204     dcc[i].type->eof(i);
205     else
206     continue;
207 fabian 1.27 /* Only timeout 1 socket per cycle, too risky for more */
208 segfault 1.1 return;
209     }
210     }
211    
212 fabian 1.11 #ifdef DEBUG_CONTEXT
213 fabian 1.27 static int nested_debug = 0;
214 segfault 1.1
215     void write_debug()
216     {
217     int x;
218 guppy 1.49 char s[25];
219 segfault 1.1 int y;
220    
221     if (nested_debug) {
222 fabian 1.27 /* Yoicks, if we have this there's serious trouble!
223     * All of these are pretty reliable, so we'll try these.
224 guppy 1.56 *
225 fabian 1.27 * NOTE: dont try and display context-notes in here, it's
226     * _not_ safe <cybah>
227     */
228 segfault 1.1 x = creat("DEBUG.DEBUG", 0644);
229     setsock(x, SOCK_NONSOCK);
230     if (x >= 0) {
231 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
232 guppy 1.57 dprintf(-x, "Debug (%s) written %s\n", ver, s);
233 guppy 1.60 dprintf(-x, "Please report problem to bugs@eggheads.org\n");
234 guppy 1.57 dprintf(-x, "after a visit to http://www.eggheads.org/bugzilla/\n");
235 segfault 1.1 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
236     dprintf(-x, "Context: ");
237     cx_ptr = cx_ptr & 15;
238     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
239     dprintf(-x, "%s/%d,\n ", cx_file[y], cx_line[y]);
240     dprintf(-x, "%s/%d\n\n", cx_file[y], cx_line[y]);
241     killsock(x);
242     close(x);
243     }
244 fabian 1.43 bg_send_quit(BG_ABORT);
245 fabian 1.27 exit(1); /* Dont even try & tell people about, that may
246     have caused the fault last time. */
247 segfault 1.1 } else
248     nested_debug = 1;
249     putlog(LOG_MISC, "*", "* Last context: %s/%d [%s]", cx_file[cx_ptr],
250     cx_line[cx_ptr], cx_note[cx_ptr][0] ? cx_note[cx_ptr] : "");
251 fabian 1.2 putlog(LOG_MISC, "*", "* Please REPORT this BUG!");
252     putlog(LOG_MISC, "*", "* Check doc/BUG-REPORT on how to do so.");
253 fabian 1.9 x = creat("DEBUG", 0644);
254 segfault 1.1 setsock(x, SOCK_NONSOCK);
255     if (x < 0) {
256     putlog(LOG_MISC, "*", "* Failed to write DEBUG");
257     } else {
258 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
259 guppy 1.57 dprintf(-x, "Debug (%s) written %s\n", ver, s);
260 segfault 1.1 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
261     #ifdef STATIC
262     dprintf(-x, "STATICALLY LINKED\n");
263     #endif
264 guppy 1.51
265     /* info library */
266 poptix 1.65 dprintf(-x, "TCL library: %s\n",
267 guppy 1.51 ((interp) && (Tcl_Eval(interp, "info library") == TCL_OK)) ?
268     interp->result : "*unknown*");
269    
270     /* info tclversion */
271 poptix 1.65 dprintf(-x, "TCL version: %s (header version %s)\n",
272 guppy 1.51 ((interp) && (Tcl_Eval(interp, "info tclversion") == TCL_OK)) ?
273     interp->result : "*unknown*", TCL_VERSION);
274    
275     /* info patchlevel */
276 poptix 1.65 dprintf(-x, "TCL patchlevel: %s (header patchlevel %s)\n",
277 guppy 1.51 ((interp) && (Tcl_Eval(interp, "info patchlevel") == TCL_OK)) ?
278     interp->result : "*unknown*",
279     TCL_PATCH_LEVEL ? TCL_PATCH_LEVEL : "*unknown*");
280 poptix 1.65
281     #if HAVE_TCL_THREADS
282     dprintf(-x, "TCL is threaded\n");
283     #else
284     dprintf(-x, "TCL isn't threaded\n");
285     #endif
286 guppy 1.51
287     #ifdef CCFLAGS
288 segfault 1.1 dprintf(-x, "Compile flags: %s\n", CCFLAGS);
289 guppy 1.51 #endif
290     #ifdef LDFLAGS
291 guppy 1.64 dprintf(-x, "Link flags: %s\n", LDFLAGS);
292 guppy 1.51 #endif
293     #ifdef STRIPFLAGS
294 guppy 1.64 dprintf(-x, "Strip flags: %s\n", STRIPFLAGS);
295 guppy 1.51 #endif
296    
297 segfault 1.1 dprintf(-x, "Context: ");
298     cx_ptr = cx_ptr & 15;
299     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
300     dprintf(-x, "%s/%d, [%s]\n ", cx_file[y], cx_line[y],
301     (cx_note[y][0]) ? cx_note[y] : "");
302     dprintf(-x, "%s/%d [%s]\n\n", cx_file[cx_ptr], cx_line[cx_ptr],
303     (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
304     tell_dcc(-x);
305     dprintf(-x, "\n");
306     debug_mem_to_dcc(-x);
307     killsock(x);
308     close(x);
309     putlog(LOG_MISC, "*", "* Wrote DEBUG");
310     }
311     }
312 fabian 1.10 #endif
313 fabian 1.2
314 segfault 1.1 static void got_bus(int z)
315     {
316 fabian 1.11 #ifdef DEBUG_CONTEXT
317 segfault 1.1 write_debug();
318 fabian 1.10 #endif
319 segfault 1.1 fatal("BUS ERROR -- CRASHING!", 1);
320     #ifdef SA_RESETHAND
321     kill(getpid(), SIGBUS);
322     #else
323 fabian 1.43 bg_send_quit(BG_ABORT);
324 segfault 1.1 exit(1);
325     #endif
326     }
327    
328     static void got_segv(int z)
329     {
330 fabian 1.11 #ifdef DEBUG_CONTEXT
331 segfault 1.1 write_debug();
332 fabian 1.10 #endif
333 segfault 1.1 fatal("SEGMENT VIOLATION -- CRASHING!", 1);
334     #ifdef SA_RESETHAND
335     kill(getpid(), SIGSEGV);
336     #else
337 fabian 1.43 bg_send_quit(BG_ABORT);
338 segfault 1.1 exit(1);
339     #endif
340     }
341    
342     static void got_fpe(int z)
343     {
344 fabian 1.11 #ifdef DEBUG_CONTEXT
345 segfault 1.1 write_debug();
346 fabian 1.10 #endif
347 segfault 1.1 fatal("FLOATING POINT ERROR -- CRASHING!", 0);
348     }
349    
350     static void got_term(int z)
351     {
352     write_userfile(-1);
353     check_tcl_event("sigterm");
354     if (die_on_sigterm) {
355     botnet_send_chat(-1, botnetnick, "ACK, I've been terminated!");
356     fatal("TERMINATE SIGNAL -- SIGNING OFF", 0);
357     } else {
358     putlog(LOG_MISC, "*", "RECEIVED TERMINATE SIGNAL (IGNORING)");
359     }
360     }
361    
362     static void got_quit(int z)
363     {
364     check_tcl_event("sigquit");
365     putlog(LOG_MISC, "*", "RECEIVED QUIT SIGNAL (IGNORING)");
366     return;
367     }
368    
369     static void got_hup(int z)
370     {
371     write_userfile(-1);
372     check_tcl_event("sighup");
373     if (die_on_sighup) {
374     fatal("HANGUP SIGNAL -- SIGNING OFF", 0);
375     } else
376     putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
377     do_restart = -2;
378     return;
379     }
380    
381 fabian 1.27 /* A call to resolver (gethostbyname, etc) timed out
382     */
383 segfault 1.1 static void got_alarm(int z)
384     {
385     longjmp(alarmret, 1);
386 fabian 1.27
387     /* -Never reached- */
388 segfault 1.1 }
389    
390 fabian 1.27 /* Got ILL signal -- log context and continue
391     */
392 segfault 1.1 static void got_ill(int z)
393     {
394     check_tcl_event("sigill");
395 fabian 1.11 #ifdef DEBUG_CONTEXT
396 segfault 1.1 putlog(LOG_MISC, "*", "* Context: %s/%d [%s]", cx_file[cx_ptr],
397     cx_line[cx_ptr], (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
398 fabian 1.5 #endif
399 segfault 1.1 }
400    
401 fabian 1.11 #ifdef DEBUG_CONTEXT
402 fabian 1.10 /* Context */
403 fabian 1.44 void eggContext(const char *file, int line, const char *module)
404 fabian 1.10 {
405 fabian 1.39 char x[31], *p;
406 fabian 1.10
407 fabian 1.39 p = strrchr(file, '/');
408     if (!module) {
409 guppy 1.49 strncpyz(x, p ? p + 1 : file, sizeof x);
410 fabian 1.39 } else
411     egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
412 fabian 1.10 cx_ptr = ((cx_ptr + 1) & 15);
413     strcpy(cx_file[cx_ptr], x);
414     cx_line[cx_ptr] = line;
415     cx_note[cx_ptr][0] = 0;
416     }
417    
418 fabian 1.27 /* Called from the ContextNote macro.
419     */
420 fabian 1.44 void eggContextNote(const char *file, int line, const char *module,
421     const char *note)
422 fabian 1.10 {
423 fabian 1.39 char x[31], *p;
424 fabian 1.10
425 fabian 1.39 p = strrchr(file, '/');
426     if (!module) {
427 guppy 1.49 strncpyz(x, p ? p + 1 : file, sizeof x);
428 fabian 1.39 } else
429     egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
430 fabian 1.10 cx_ptr = ((cx_ptr + 1) & 15);
431     strcpy(cx_file[cx_ptr], x);
432     cx_line[cx_ptr] = line;
433 guppy 1.49 strncpyz(cx_note[cx_ptr], note, sizeof cx_note[cx_ptr]);
434 fabian 1.10 }
435 fabian 1.11 #endif
436 fabian 1.10
437 fabian 1.11 #ifdef DEBUG_ASSERT
438 fabian 1.27 /* Called from the Assert macro.
439     */
440 fabian 1.44 void eggAssert(const char *file, int line, const char *module)
441 fabian 1.10 {
442 fabian 1.11 #ifdef DEBUG_CONTEXT
443 fabian 1.44 write_debug();
444 fabian 1.11 #endif
445 fabian 1.44 if (!module)
446     putlog(LOG_MISC, "*", "* In file %s, line %u", file, line);
447     else
448     putlog(LOG_MISC, "*", "* In file %s:%s, line %u", module, file, line);
449     fatal("ASSERT FAILED -- CRASHING!", 1);
450 fabian 1.10 }
451     #endif
452    
453 segfault 1.1 static void do_arg(char *s)
454     {
455 guppy 1.49 char x[1024], *z = x;
456 segfault 1.1 int i;
457    
458     if (s[0] == '-')
459     for (i = 1; i < strlen(s); i++) {
460 guppy 1.49 switch (s[i]) {
461     case 'n':
462 segfault 1.1 backgrd = 0;
463 guppy 1.49 break;
464     case 'c':
465 segfault 1.1 con_chan = 1;
466     term_z = 0;
467 guppy 1.49 break;
468     case 't':
469 segfault 1.1 con_chan = 0;
470     term_z = 1;
471 guppy 1.49 break;
472     case 'm':
473 segfault 1.1 make_userfile = 1;
474 guppy 1.49 break;
475     case 'v':
476     strncpyz(x, egg_version, sizeof x);
477 segfault 1.1 newsplit(&z);
478     newsplit(&z);
479     printf("%s\n", version);
480     if (z[0])
481     printf(" (patches: %s)\n", z);
482 fabian 1.43 bg_send_quit(BG_ABORT);
483 segfault 1.1 exit(0);
484 guppy 1.49 break; /* this should never be reached */
485     case 'h':
486 segfault 1.1 printf("\n%s\n\n", version);
487     printf(EGG_USAGE);
488     printf("\n");
489 fabian 1.43 bg_send_quit(BG_ABORT);
490 segfault 1.1 exit(0);
491 guppy 1.49 break; /* this should never be reached */
492 segfault 1.1 }
493     } else
494 guppy 1.49 strncpyz(configfile, s, sizeof configfile);
495 segfault 1.1 }
496    
497 fabian 1.44 void backup_userfile(void)
498 segfault 1.1 {
499 guppy 1.49 char s[125];
500 segfault 1.1
501     putlog(LOG_MISC, "*", USERF_BACKUP);
502 guppy 1.49 egg_snprintf(s, sizeof s, "%s~bak", userfile);
503 segfault 1.1 copyfile(userfile, s);
504     }
505    
506 fabian 1.27 /* Timer info */
507     static int lastmin = 99;
508     static time_t then;
509     static struct tm nowtm;
510 segfault 1.1
511 fabian 1.34 /* Called once a second.
512     *
513     * Note: Try to not put any Context lines in here (guppy 21Mar2000).
514 fabian 1.27 */
515 segfault 1.1 static void core_secondly()
516     {
517     static int cnt = 0;
518     int miltime;
519    
520 fabian 1.27 do_check_timers(&utimer); /* Secondly timers */
521 segfault 1.1 cnt++;
522 fabian 1.27 if (cnt >= 10) { /* Every 10 seconds */
523 segfault 1.1 cnt = 0;
524     check_expired_dcc();
525     if (con_chan && !backgrd) {
526     dprintf(DP_STDOUT, "\033[2J\033[1;1H");
527     tell_verbose_status(DP_STDOUT);
528     do_module_report(DP_STDOUT, 0, "server");
529     do_module_report(DP_STDOUT, 0, "channels");
530     tell_mem_status_dcc(DP_STDOUT);
531     }
532     }
533 fabian 1.35 egg_memcpy(&nowtm, localtime(&now), sizeof(struct tm));
534 fabian 1.17 if (nowtm.tm_min != lastmin) {
535 segfault 1.1 int i = 0;
536    
537 fabian 1.27 /* Once a minute */
538 segfault 1.1 lastmin = (lastmin + 1) % 60;
539     call_hook(HOOK_MINUTELY);
540     check_expired_ignores();
541 fabian 1.27 autolink_cycle(NULL); /* Attempt autolinks */
542     /* In case for some reason more than 1 min has passed: */
543 fabian 1.17 while (nowtm.tm_min != lastmin) {
544 fabian 1.27 /* Timer drift, dammit */
545 fabian 1.17 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
546 segfault 1.1 i++;
547     lastmin = (lastmin + 1) % 60;
548     call_hook(HOOK_MINUTELY);
549     }
550     if (i > 1)
551     putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
552 fabian 1.17 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
553     if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
554 segfault 1.1 call_hook(HOOK_5MINUTELY);
555     check_botnet_pings();
556 guppy 1.49 if (!quick_logs) {
557 segfault 1.1 flushlogs();
558     check_logsize();
559     }
560 guppy 1.49 if (!miltime) { /* At midnight */
561     char s[25];
562 segfault 1.1 int j;
563    
564 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
565 fabian 1.4 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
566 guppy 1.69 call_hook(HOOK_BACKUP);
567 segfault 1.1 for (j = 0; j < max_logs; j++) {
568     if (logs[j].filename != NULL && logs[j].f != NULL) {
569     fclose(logs[j].f);
570     logs[j].f = NULL;
571     }
572     }
573     }
574     }
575 fabian 1.17 if (nowtm.tm_min == notify_users_at)
576 segfault 1.1 call_hook(HOOK_HOURLY);
577 fabian 1.27 /* These no longer need checking since they are all check vs minutely
578     * settings and we only get this far on the minute.
579     */
580 segfault 1.1 if (miltime == switch_logfiles_at) {
581     call_hook(HOOK_DAILY);
582     if (!keep_all_logs) {
583     putlog(LOG_MISC, "*", MISC_LOGSWITCH);
584     for (i = 0; i < max_logs; i++)
585     if (logs[i].filename) {
586     char s[1024];
587    
588     if (logs[i].f) {
589     fclose(logs[i].f);
590     logs[i].f = NULL;
591     }
592 guppy 1.49 egg_snprintf(s, sizeof s, "%s.yesterday", logs[i].filename);
593 segfault 1.1 unlink(s);
594 fabian 1.2 movefile(logs[i].filename, s);
595 segfault 1.1 }
596     }
597     }
598     }
599     }
600    
601     static void core_minutely()
602     {
603 fabian 1.17 check_tcl_time(&nowtm);
604 segfault 1.1 do_check_timers(&timer);
605     if (quick_logs != 0) {
606     flushlogs();
607     check_logsize();
608     }
609     }
610    
611     static void core_hourly()
612     {
613     write_userfile(-1);
614     }
615    
616     static void event_rehash()
617     {
618     check_tcl_event("rehash");
619     }
620    
621     static void event_prerehash()
622     {
623     check_tcl_event("prerehash");
624     }
625    
626     static void event_save()
627     {
628     check_tcl_event("save");
629     }
630    
631     static void event_logfile()
632     {
633     check_tcl_event("logfile");
634     }
635    
636 fabian 1.13 static void event_resettraffic()
637     {
638     otraffic_irc += otraffic_irc_today;
639     itraffic_irc += itraffic_irc_today;
640     otraffic_bn += otraffic_bn_today;
641     itraffic_bn += itraffic_bn_today;
642     otraffic_dcc += otraffic_dcc_today;
643     itraffic_dcc += itraffic_dcc_today;
644     otraffic_unknown += otraffic_unknown_today;
645     itraffic_unknown += itraffic_unknown_today;
646     otraffic_trans += otraffic_trans_today;
647     itraffic_trans += itraffic_trans_today;
648     otraffic_irc_today = otraffic_bn_today = 0;
649     otraffic_dcc_today = otraffic_unknown_today = 0;
650     itraffic_irc_today = itraffic_bn_today = 0;
651     itraffic_dcc_today = itraffic_unknown_today = 0;
652 fabian 1.18 itraffic_trans_today = otraffic_trans_today = 0;
653 fabian 1.13 }
654    
655 guppy 1.61 static void event_loaded()
656     {
657     check_tcl_event("loaded");
658     }
659    
660 segfault 1.1 void kill_tcl();
661     extern module_entry *module_list;
662     void restart_chons();
663    
664     #ifdef STATIC
665     void check_static(char *, char *(*)());
666    
667     #include "mod/static.h"
668     #endif
669     int init_mem(), init_dcc_max(), init_userent(), init_misc(), init_bots(),
670 fabian 1.8 init_net(), init_modules(), init_tcl(int, char **),
671     init_language(int);
672 fabian 1.11
673 fabian 1.44 void patch(const char *str)
674 fabian 1.11 {
675     char *p = strchr(egg_version, '+');
676    
677     if (!p)
678     p = &egg_version[strlen(egg_version)];
679     sprintf(p, "+%s", str);
680     egg_numver++;
681     sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
682     }
683 segfault 1.1
684 fabian 1.45 static inline void garbage_collect(void)
685     {
686     static u_8bit_t run_cnt = 0;
687    
688     if (run_cnt == 3)
689     garbage_collect_tclhash();
690     else
691     run_cnt++;
692     }
693    
694 segfault 1.1 int main(int argc, char **argv)
695     {
696     int xx, i;
697 guppy 1.49 char buf[520], s[25];
698 segfault 1.1 FILE *f;
699     struct sigaction sv;
700     struct chanset_t *chan;
701    
702 fabian 1.15 #ifdef DEBUG_MEM
703 fabian 1.21 /* Make sure it can write core, if you make debug. Else it's pretty
704     * useless (dw)
705     */
706 fabian 1.15 {
707     #include <sys/resource.h>
708     struct rlimit cdlim;
709 fabian 1.21
710 fabian 1.15 cdlim.rlim_cur = RLIM_INFINITY;
711     cdlim.rlim_max = RLIM_INFINITY;
712 fabian 1.32 setrlimit(RLIMIT_CORE, &cdlim);
713 fabian 1.15 }
714     #endif
715    
716 fabian 1.27 /* Initialise context list */
717 fabian 1.32 for (i = 0; i < 16; i++)
718 fabian 1.10 Context;
719 fabian 1.32
720 segfault 1.1 #include "patch.h"
721 fabian 1.27 /* Version info! */
722 guppy 1.49 egg_snprintf(ver, sizeof ver, "eggdrop v%s", egg_version);
723 guppy 1.56 egg_snprintf(version, sizeof version, "Eggdrop v%s (C)1997 Robey Pointer (C)2001 Eggheads",
724     egg_version);
725 fabian 1.27 /* Now add on the patchlevel (for Tcl) */
726 fabian 1.2 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
727 segfault 1.1 strcat(egg_version, egg_xtra);
728     #ifdef STOP_UAC
729     {
730     int nvpair[2];
731    
732     nvpair[0] = SSIN_UACPROC;
733     nvpair[1] = UAC_NOPRINT;
734     setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
735     }
736     #endif
737 fabian 1.27
738     /* Set up error traps: */
739 segfault 1.1 sv.sa_handler = got_bus;
740     sigemptyset(&sv.sa_mask);
741     #ifdef SA_RESETHAND
742     sv.sa_flags = SA_RESETHAND;
743     #else
744     sv.sa_flags = 0;
745     #endif
746     sigaction(SIGBUS, &sv, NULL);
747     sv.sa_handler = got_segv;
748     sigaction(SIGSEGV, &sv, NULL);
749     #ifdef SA_RESETHAND
750     sv.sa_flags = 0;
751     #endif
752     sv.sa_handler = got_fpe;
753     sigaction(SIGFPE, &sv, NULL);
754     sv.sa_handler = got_term;
755     sigaction(SIGTERM, &sv, NULL);
756     sv.sa_handler = got_hup;
757     sigaction(SIGHUP, &sv, NULL);
758     sv.sa_handler = got_quit;
759     sigaction(SIGQUIT, &sv, NULL);
760     sv.sa_handler = SIG_IGN;
761     sigaction(SIGPIPE, &sv, NULL);
762     sv.sa_handler = got_ill;
763     sigaction(SIGILL, &sv, NULL);
764     sv.sa_handler = got_alarm;
765     sigaction(SIGALRM, &sv, NULL);
766 fabian 1.27
767     /* Initialize variables and stuff */
768 segfault 1.1 now = time(NULL);
769     chanset = NULL;
770 fabian 1.35 egg_memcpy(&nowtm, localtime(&now), sizeof(struct tm));
771 fabian 1.17 lastmin = nowtm.tm_min;
772 poptix 1.63 srandom(now % (getpid() + getppid()));
773 segfault 1.1 init_mem();
774     init_language(1);
775     if (argc > 1)
776     for (i = 1; i < argc; i++)
777     do_arg(argv[i]);
778     printf("\n%s\n", version);
779 guppy 1.53
780     /* Don't allow eggdrop to run as root */
781     if (((int) getuid() == 0) || ((int) geteuid() == 0))
782     fatal("ERROR: Eggdrop will not run as root!", 0);
783    
784 segfault 1.1 init_dcc_max();
785     init_userent();
786     init_misc();
787     init_bots();
788     init_net();
789     init_modules();
790 fabian 1.43 if (backgrd)
791     bg_prepare_split();
792 fabian 1.8 init_tcl(argc, argv);
793 segfault 1.1 init_language(0);
794     #ifdef STATIC
795     link_statics();
796     #endif
797 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
798 segfault 1.1 strcpy(&s[11], &s[20]);
799     putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
800     chanprog();
801 guppy 1.49 if (!encrypt_pass) {
802 segfault 1.1 printf(MOD_NOCRYPT);
803 fabian 1.43 bg_send_quit(BG_ABORT);
804 segfault 1.1 exit(1);
805     }
806     i = 0;
807     for (chan = chanset; chan; chan = chan->next)
808     i++;
809 fabian 1.4 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
810 segfault 1.1 botnetnick, i, count_users(userlist));
811     cache_miss = 0;
812     cache_hit = 0;
813 guppy 1.49 egg_snprintf(pid_file, sizeof pid_file, "pid.%s", botnetnick);
814 fabian 1.27
815     /* Check for pre-existing eggdrop! */
816 segfault 1.1 f = fopen(pid_file, "r");
817     if (f != NULL) {
818     fgets(s, 10, f);
819     xx = atoi(s);
820 fabian 1.27 kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
821     is used */
822 segfault 1.1 if (errno != ESRCH) {
823     printf(EGG_RUNNING1, origbotname);
824     printf(EGG_RUNNING2, pid_file);
825 fabian 1.43 bg_send_quit(BG_ABORT);
826 segfault 1.1 exit(1);
827     }
828     }
829 fabian 1.27
830     /* Move into background? */
831 segfault 1.1 if (backgrd) {
832 fabian 1.38 #ifndef CYGWIN_HACKS
833 fabian 1.43 bg_do_split();
834 fabian 1.38 } else { /* !backgrd */
835 fabian 1.5 #endif
836 fabian 1.38 xx = getpid();
837     if (xx != 0) {
838     FILE *fp;
839    
840     /* Write pid to file */
841     unlink(pid_file);
842     fp = fopen(pid_file, "w");
843     if (fp != NULL) {
844     fprintf(fp, "%u\n", xx);
845     if (fflush(fp)) {
846     /* Let the bot live since this doesn't appear to be a botchk */
847     printf(EGG_NOWRITE, pid_file);
848     fclose(fp);
849     unlink(pid_file);
850     } else
851     fclose(fp);
852 fabian 1.27 } else
853 fabian 1.38 printf(EGG_NOWRITE, pid_file);
854     #ifdef CYGWIN_HACKS
855 guppy 1.68 printf("Launched into the background (pid: %d)\n\n", xx);
856 fabian 1.38 #endif
857     }
858 segfault 1.1 }
859 fabian 1.38
860     use_stderr = 0; /* Stop writing to stderr now */
861 segfault 1.1 if (backgrd) {
862 fabian 1.27 /* Ok, try to disassociate from controlling terminal (finger cross) */
863 fabian 1.5 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
864 segfault 1.1 setpgid(0, 0);
865     #endif
866 fabian 1.38 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
867 segfault 1.1 freopen("/dev/null", "r", stdin);
868     freopen("/dev/null", "w", stdout);
869     freopen("/dev/null", "w", stderr);
870 poptix 1.62 #ifdef CYGWIN_HACKS
871     FreeConsole();
872     #endif
873 segfault 1.1 }
874 fabian 1.27
875     /* Terminal emulating dcc chat */
876 fabian 1.42 if (!backgrd && term_z) {
877 segfault 1.1 int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
878    
879 drummer 1.71 dcc[n].addr[0] = '\0';
880 segfault 1.1 dcc[n].sock = STDOUT;
881     dcc[n].timeval = now;
882     dcc[n].u.chat->con_flags = conmask;
883     dcc[n].u.chat->strip_flags = STRIP_ALL;
884     dcc[n].status = STAT_ECHO;
885     strcpy(dcc[n].nick, "HQ");
886     strcpy(dcc[n].host, "llama@console");
887     dcc[n].user = get_user_by_handle(userlist, "HQ");
888 fabian 1.27 /* Make sure there's an innocuous HQ user if needed */
889 segfault 1.1 if (!dcc[n].user) {
890 fabian 1.24 userlist = adduser(userlist, "HQ", "none", "-", USER_PARTY);
891 segfault 1.1 dcc[n].user = get_user_by_handle(userlist, "HQ");
892     }
893 fabian 1.27 setsock(STDOUT, 0); /* Entry in net table */
894 segfault 1.1 dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
895     dcc_chatter(n);
896     }
897 fabian 1.27
898 segfault 1.1 then = now;
899     online_since = now;
900 fabian 1.27 autolink_cycle(NULL); /* Hurry and connect to tandem bots */
901 segfault 1.1 add_help_reference("cmds1.help");
902     add_help_reference("cmds2.help");
903     add_help_reference("core.help");
904 fabian 1.22 add_hook(HOOK_SECONDLY, (Function) core_secondly);
905     add_hook(HOOK_MINUTELY, (Function) core_minutely);
906     add_hook(HOOK_HOURLY, (Function) core_hourly);
907     add_hook(HOOK_REHASH, (Function) event_rehash);
908     add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
909     add_hook(HOOK_USERFILE, (Function) event_save);
910 guppy 1.69 add_hook(HOOK_BACKUP, (Function) backup_userfile);
911 fabian 1.22 add_hook(HOOK_DAILY, (Function) event_logfile);
912     add_hook(HOOK_DAILY, (Function) event_resettraffic);
913 guppy 1.61 add_hook(HOOK_LOADED, (Function) event_loaded);
914    
915     call_hook(HOOK_LOADED);
916 segfault 1.1
917     debug0("main: entering loop");
918     while (1) {
919     int socket_cleanup = 0;
920    
921 fabian 1.43 #if !defined(HAVE_PRE7_5_TCL)
922 fabian 1.27 /* Process a single tcl event */
923 segfault 1.1 Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
924 fabian 1.5 #endif
925 fabian 1.45
926 fabian 1.27 /* Lets move some of this here, reducing the numer of actual
927     * calls to periodic_timers
928     */
929 segfault 1.1 now = time(NULL);
930 fabian 1.27 random(); /* Woop, lets really jumble things */
931     if (now != then) { /* Once a second */
932 segfault 1.1 call_hook(HOOK_SECONDLY);
933     then = now;
934     }
935 fabian 1.45
936     /* Only do this every so often. */
937 segfault 1.1 if (!socket_cleanup) {
938 fabian 1.45 socket_cleanup = 5;
939    
940     /* Remove dead dcc entries. */
941 fabian 1.16 dcc_remove_lost();
942 fabian 1.45
943     /* Check for server or dcc activity. */
944 segfault 1.1 dequeue_sockets();
945     } else
946     socket_cleanup--;
947 fabian 1.45
948     /* Free unused structures. */
949     garbage_collect();
950    
951 segfault 1.1 xx = sockgets(buf, &i);
952 fabian 1.27 if (xx >= 0) { /* Non-error */
953 segfault 1.1 int idx;
954    
955     for (idx = 0; idx < dcc_total; idx++)
956     if (dcc[idx].sock == xx) {
957 fabian 1.13 if (dcc[idx].type && dcc[idx].type->activity) {
958 fabian 1.27 /* Traffic stats */
959     if (dcc[idx].type->name) {
960     if (!strncmp(dcc[idx].type->name, "BOT", 3))
961     itraffic_bn_today += strlen(buf) + 1;
962     else if (!strcmp(dcc[idx].type->name, "SERVER"))
963     itraffic_irc_today += strlen(buf) + 1;
964     else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
965     itraffic_dcc_today += strlen(buf) + 1;
966     else if (!strncmp(dcc[idx].type->name, "FILES", 5))
967     itraffic_dcc_today += strlen(buf) + 1;
968     else if (!strcmp(dcc[idx].type->name, "SEND"))
969     itraffic_trans_today += strlen(buf) + 1;
970     else if (!strncmp(dcc[idx].type->name, "GET", 3))
971     itraffic_trans_today += strlen(buf) + 1;
972     else
973     itraffic_unknown_today += strlen(buf) + 1;
974     }
975 guppy 1.56 dcc[idx].type->activity(idx, buf, i);
976 fabian 1.13 } else
977 segfault 1.1 putlog(LOG_MISC, "*",
978     "!!! untrapped dcc activity: type %s, sock %d",
979     dcc[idx].type->name, dcc[idx].sock);
980     break;
981     }
982     } else if (xx == -1) { /* EOF from someone */
983     int idx;
984    
985 fabian 1.45 if (i == STDOUT && !backgrd)
986 segfault 1.1 fatal("END OF FILE ON TERMINAL", 0);
987     for (idx = 0; idx < dcc_total; idx++)
988     if (dcc[idx].sock == i) {
989     if (dcc[idx].type && dcc[idx].type->eof)
990     dcc[idx].type->eof(idx);
991     else {
992     putlog(LOG_MISC, "*",
993     "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
994 fabian 1.2 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
995     killsock(i);
996 segfault 1.1 lostdcc(idx);
997     }
998     idx = dcc_total + 1;
999     }
1000     if (idx == dcc_total) {
1001     putlog(LOG_MISC, "*",
1002 fabian 1.2 "(@) EOF socket %d, not a dcc socket, not anything.", i);
1003     close(i);
1004     killsock(i);
1005 segfault 1.1 }
1006 fabian 1.45 } else if (xx == -2 && errno != EINTR) { /* select() error */
1007 segfault 1.1 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
1008     for (i = 0; i < dcc_total; i++) {
1009     if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
1010     putlog(LOG_MISC, "*",
1011     "DCC socket %d (type %d, name '%s') expired -- pfft",
1012     dcc[i].sock, dcc[i].type, dcc[i].nick);
1013     killsock(dcc[i].sock);
1014     lostdcc(i);
1015     i--;
1016     }
1017     }
1018 fabian 1.45 } else if (xx == -3) {
1019 segfault 1.1 call_hook(HOOK_IDLE);
1020 fabian 1.27 socket_cleanup = 0; /* If we've been idle, cleanup & flush */
1021 segfault 1.1 }
1022 fabian 1.27
1023 segfault 1.1 if (do_restart) {
1024     if (do_restart == -2)
1025     rehash();
1026     else {
1027 fabian 1.27 /* Unload as many modules as possible */
1028 segfault 1.1 int f = 1;
1029     module_entry *p;
1030     Function x;
1031     char xx[256];
1032 guppy 1.59
1033     /* oops, I guess we should call this event before tcl is restarted */
1034     check_tcl_event("prerestart");
1035 segfault 1.1
1036     while (f) {
1037     f = 0;
1038     for (p = module_list; p != NULL; p = p->next) {
1039     dependancy *d = dependancy_list;
1040     int ok = 1;
1041    
1042     while (ok && d) {
1043     if (d->needed == p)
1044     ok = 0;
1045     d = d->next;
1046     }
1047     if (ok) {
1048     strcpy(xx, p->name);
1049     if (module_unload(xx, origbotname) == NULL) {
1050     f = 1;
1051     break;
1052     }
1053     }
1054     }
1055     }
1056     p = module_list;
1057     if (p && p->next && p->next->next)
1058 fabian 1.45 /* Should be only 2 modules now - blowfish (or some other
1059     encryption module) and eggdrop. */
1060 segfault 1.1 putlog(LOG_MISC, "*", MOD_STAGNANT);
1061     flushlogs();
1062     kill_tcl();
1063 fabian 1.8 init_tcl(argc, argv);
1064 segfault 1.1 init_language(0);
1065 fabian 1.30 /* We expect the encryption module as the current module pointed
1066     * to by `module_list'.
1067     */
1068 segfault 1.1 x = p->funcs[MODCALL_START];
1069 fabian 1.30 /* `NULL' indicates that we just recently restarted. The module
1070     * is expected to re-initialise as needed.
1071     */
1072     x(NULL);
1073 segfault 1.1 rehash();
1074     restart_chons();
1075 guppy 1.61 call_hook(HOOK_LOADED);
1076 segfault 1.1 }
1077     do_restart = 0;
1078     }
1079     }
1080     }

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