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

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Revision 1.89 - (hide annotations) (download) (as text)
Wed Oct 17 06:08:11 2001 UTC (17 years, 9 months ago) by stdarg
Branch: MAIN
Changes since 1.88: +3 -1 lines
File MIME type: text/x-chdr
Updates to timer code.
Added USER and CALLBACK types to perl module.

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 1.89 * $Id: main.c,v 1.88 2001/10/17 03:28:16 stdarg 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 stdarg 1.82 #include "egg_timer.h"
57 stdarg 1.85 #include "core_binds.h"
58 fabian 1.38
59 drummer 1.71 #include "adns/adns.h"
60    
61 poptix 1.62 #ifdef CYGWIN_HACKS
62     #include <windows.h>
63     #endif
64    
65 segfault 1.1 #ifndef _POSIX_SOURCE
66 fabian 1.27 /* Solaris needs this */
67 segfault 1.1 #define _POSIX_SOURCE 1
68     #endif
69    
70 fabian 1.27 extern char origbotname[], userfile[], botnetnick[];
71     extern int dcc_total, conmask, cache_hit, cache_miss,
72     max_logs, quick_logs;
73     extern struct dcc_t *dcc;
74     extern struct userrec *userlist;
75     extern struct chanset_t *chanset;
76     extern log_t *logs;
77     extern Tcl_Interp *interp;
78     extern tcl_timer_t *timer,
79     *utimer;
80     extern jmp_buf alarmret;
81    
82 segfault 1.1
83 guppy 1.56 /*
84 segfault 1.1 * Please use the PATCH macro instead of directly altering the version
85     * string from now on (it makes it much easier to maintain patches).
86     * Also please read the README file regarding your rights to distribute
87     * modified versions of this bot.
88     */
89    
90 ite 1.76 char egg_version[1024] = VERSION;
91     int egg_numver = VERSION_NUM;
92 segfault 1.1
93 fabian 1.27 char notify_new[121] = ""; /* Person to send a note to for new users */
94     int default_flags = 0; /* Default user flags and */
95     int default_uflags = 0; /* Default userdefinied flags for people
96     who say 'hello' or for .adduser */
97    
98     int backgrd = 1; /* Run in the background? */
99     int con_chan = 0; /* Foreground: constantly display channel
100     stats? */
101     int term_z = 0; /* Foreground: use the terminal as a party
102     line? */
103     char configfile[121] = "eggdrop.conf"; /* Name of the config file */
104     char helpdir[121]; /* Directory of help files (if used) */
105     char textdir[121] = ""; /* Directory for text files that get dumped */
106     int keep_all_logs = 0; /* Never erase logfiles, no matter how old
107     they are? */
108 fabian 1.40 char logfile_suffix[21] = ".%d%b%Y"; /* Format of logfile suffix. */
109 fabian 1.27 time_t online_since; /* Unix-time that the bot loaded up */
110     int make_userfile = 0; /* Using bot in make-userfile mode? (first
111     user to 'hello' becomes master) */
112     char owner[121] = ""; /* Permanent owner(s) of the bot */
113 guppy 1.49 char pid_file[HANDLEN + 5]; /* Name of the file for the pid to be
114 fabian 1.27 stored in */
115     int save_users_at = 0; /* How many minutes past the hour to
116     save the userfile? */
117     int notify_users_at = 0; /* How many minutes past the hour to
118     notify users of notes? */
119     int switch_logfiles_at = 300; /* When (military time) to switch logfiles */
120     char version[81]; /* Version info (long form) */
121     char ver[41]; /* Version info (short form) */
122     char egg_xtra[2048]; /* Patch info */
123     int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
124     int do_restart = 0; /* .restart has been called, restart asap */
125     int die_on_sighup = 0; /* die if bot receives SIGHUP */
126 guppy 1.52 int die_on_sigterm = 1; /* die if bot receives SIGTERM */
127 fabian 1.27 int resolve_timeout = 15; /* hostname/address lookup timeout */
128 guppy 1.72 char quit_msg[1024]; /* quit message */
129 fabian 1.27 time_t now; /* duh, now :) */
130    
131     /* Traffic stats
132     */
133 fabian 1.33 unsigned long otraffic_irc = 0;
134     unsigned long otraffic_irc_today = 0;
135     unsigned long otraffic_bn = 0;
136     unsigned long otraffic_bn_today = 0;
137     unsigned long otraffic_dcc = 0;
138     unsigned long otraffic_dcc_today = 0;
139     unsigned long otraffic_filesys = 0;
140     unsigned long otraffic_filesys_today = 0;
141     unsigned long otraffic_trans = 0;
142     unsigned long otraffic_trans_today = 0;
143     unsigned long otraffic_unknown = 0;
144     unsigned long otraffic_unknown_today = 0;
145     unsigned long itraffic_irc = 0;
146     unsigned long itraffic_irc_today = 0;
147     unsigned long itraffic_bn = 0;
148     unsigned long itraffic_bn_today = 0;
149     unsigned long itraffic_dcc = 0;
150     unsigned long itraffic_dcc_today = 0;
151     unsigned long itraffic_trans = 0;
152     unsigned long itraffic_trans_today = 0;
153     unsigned long itraffic_unknown = 0;
154     unsigned long itraffic_unknown_today = 0;
155 segfault 1.1
156 fabian 1.11 #ifdef DEBUG_CONTEXT
157 fabian 1.27 /* Context storage for fatal crashes */
158     char cx_file[16][30];
159     char cx_note[16][256];
160     int cx_line[16];
161     int cx_ptr = 0;
162 fabian 1.10 #endif
163 segfault 1.1
164 fabian 1.27
165 fabian 1.44 void fatal(const char *s, int recoverable)
166 segfault 1.1 {
167     int i;
168    
169     putlog(LOG_MISC, "*", "* %s", s);
170     flushlogs();
171     for (i = 0; i < dcc_total; i++)
172 fabian 1.19 if (dcc[i].sock >= 0)
173 fabian 1.15 killsock(dcc[i].sock);
174 segfault 1.1 unlink(pid_file);
175 fabian 1.43 if (!recoverable) {
176     bg_send_quit(BG_ABORT);
177 segfault 1.1 exit(1);
178 fabian 1.43 }
179 segfault 1.1 }
180    
181     static void check_expired_dcc()
182     {
183     int i;
184    
185     for (i = 0; i < dcc_total; i++)
186     if (dcc[i].type && dcc[i].type->timeout_val &&
187     ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
188     if (dcc[i].type->timeout)
189     dcc[i].type->timeout(i);
190     else if (dcc[i].type->eof)
191     dcc[i].type->eof(i);
192     else
193     continue;
194 fabian 1.27 /* Only timeout 1 socket per cycle, too risky for more */
195 segfault 1.1 return;
196     }
197     }
198    
199 fabian 1.11 #ifdef DEBUG_CONTEXT
200 fabian 1.27 static int nested_debug = 0;
201 segfault 1.1
202     void write_debug()
203     {
204     int x;
205 guppy 1.49 char s[25];
206 segfault 1.1 int y;
207    
208     if (nested_debug) {
209 fabian 1.27 /* Yoicks, if we have this there's serious trouble!
210     * All of these are pretty reliable, so we'll try these.
211 guppy 1.56 *
212 fabian 1.27 * NOTE: dont try and display context-notes in here, it's
213     * _not_ safe <cybah>
214     */
215 segfault 1.1 x = creat("DEBUG.DEBUG", 0644);
216     setsock(x, SOCK_NONSOCK);
217     if (x >= 0) {
218 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
219 guppy 1.57 dprintf(-x, "Debug (%s) written %s\n", ver, s);
220 guppy 1.60 dprintf(-x, "Please report problem to bugs@eggheads.org\n");
221 guppy 1.57 dprintf(-x, "after a visit to http://www.eggheads.org/bugzilla/\n");
222 segfault 1.1 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
223     dprintf(-x, "Context: ");
224     cx_ptr = cx_ptr & 15;
225     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
226     dprintf(-x, "%s/%d,\n ", cx_file[y], cx_line[y]);
227     dprintf(-x, "%s/%d\n\n", cx_file[y], cx_line[y]);
228     killsock(x);
229     close(x);
230     }
231 fabian 1.43 bg_send_quit(BG_ABORT);
232 fabian 1.27 exit(1); /* Dont even try & tell people about, that may
233     have caused the fault last time. */
234 segfault 1.1 } else
235     nested_debug = 1;
236     putlog(LOG_MISC, "*", "* Last context: %s/%d [%s]", cx_file[cx_ptr],
237     cx_line[cx_ptr], cx_note[cx_ptr][0] ? cx_note[cx_ptr] : "");
238 fabian 1.2 putlog(LOG_MISC, "*", "* Please REPORT this BUG!");
239     putlog(LOG_MISC, "*", "* Check doc/BUG-REPORT on how to do so.");
240 fabian 1.9 x = creat("DEBUG", 0644);
241 segfault 1.1 setsock(x, SOCK_NONSOCK);
242     if (x < 0) {
243     putlog(LOG_MISC, "*", "* Failed to write DEBUG");
244     } else {
245 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
246 guppy 1.57 dprintf(-x, "Debug (%s) written %s\n", ver, s);
247 segfault 1.1 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
248     #ifdef STATIC
249     dprintf(-x, "STATICALLY LINKED\n");
250     #endif
251 guppy 1.51
252     /* info library */
253 poptix 1.65 dprintf(-x, "TCL library: %s\n",
254 guppy 1.51 ((interp) && (Tcl_Eval(interp, "info library") == TCL_OK)) ?
255     interp->result : "*unknown*");
256    
257 guppy 1.74 /* info tclversion/patchlevel */
258 poptix 1.65 dprintf(-x, "TCL version: %s (header version %s)\n",
259 guppy 1.51 ((interp) && (Tcl_Eval(interp, "info patchlevel") == TCL_OK)) ?
260 guppy 1.74 interp->result : (Tcl_Eval(interp, "info tclversion") == TCL_OK) ?
261     interp->result : "*unknown*", TCL_PATCH_LEVEL ? TCL_PATCH_LEVEL :
262     "*unknown*");
263 poptix 1.65
264     #if HAVE_TCL_THREADS
265     dprintf(-x, "TCL is threaded\n");
266     #endif
267 guppy 1.51
268     #ifdef CCFLAGS
269 segfault 1.1 dprintf(-x, "Compile flags: %s\n", CCFLAGS);
270 guppy 1.51 #endif
271     #ifdef LDFLAGS
272 guppy 1.64 dprintf(-x, "Link flags: %s\n", LDFLAGS);
273 guppy 1.51 #endif
274     #ifdef STRIPFLAGS
275 guppy 1.64 dprintf(-x, "Strip flags: %s\n", STRIPFLAGS);
276 guppy 1.51 #endif
277    
278 segfault 1.1 dprintf(-x, "Context: ");
279     cx_ptr = cx_ptr & 15;
280     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
281     dprintf(-x, "%s/%d, [%s]\n ", cx_file[y], cx_line[y],
282     (cx_note[y][0]) ? cx_note[y] : "");
283     dprintf(-x, "%s/%d [%s]\n\n", cx_file[cx_ptr], cx_line[cx_ptr],
284     (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
285     tell_dcc(-x);
286     dprintf(-x, "\n");
287 tothwolf 1.79 tell_netdebug(-x);
288 segfault 1.1 killsock(x);
289     close(x);
290     putlog(LOG_MISC, "*", "* Wrote DEBUG");
291     }
292     }
293 fabian 1.10 #endif
294 fabian 1.2
295 segfault 1.1 static void got_bus(int z)
296     {
297 fabian 1.11 #ifdef DEBUG_CONTEXT
298 segfault 1.1 write_debug();
299 fabian 1.10 #endif
300 segfault 1.1 fatal("BUS ERROR -- CRASHING!", 1);
301     #ifdef SA_RESETHAND
302     kill(getpid(), SIGBUS);
303     #else
304 fabian 1.43 bg_send_quit(BG_ABORT);
305 segfault 1.1 exit(1);
306     #endif
307     }
308    
309     static void got_segv(int z)
310     {
311 fabian 1.11 #ifdef DEBUG_CONTEXT
312 segfault 1.1 write_debug();
313 fabian 1.10 #endif
314 segfault 1.1 fatal("SEGMENT VIOLATION -- CRASHING!", 1);
315     #ifdef SA_RESETHAND
316     kill(getpid(), SIGSEGV);
317     #else
318 fabian 1.43 bg_send_quit(BG_ABORT);
319 segfault 1.1 exit(1);
320     #endif
321     }
322    
323     static void got_fpe(int z)
324     {
325 fabian 1.11 #ifdef DEBUG_CONTEXT
326 segfault 1.1 write_debug();
327 fabian 1.10 #endif
328 segfault 1.1 fatal("FLOATING POINT ERROR -- CRASHING!", 0);
329     }
330    
331     static void got_term(int z)
332     {
333     write_userfile(-1);
334 stdarg 1.85 check_bind_event("sigterm");
335 segfault 1.1 if (die_on_sigterm) {
336     fatal("TERMINATE SIGNAL -- SIGNING OFF", 0);
337     } else {
338     putlog(LOG_MISC, "*", "RECEIVED TERMINATE SIGNAL (IGNORING)");
339     }
340     }
341    
342     static void got_quit(int z)
343     {
344 stdarg 1.85 check_bind_event("sigquit");
345 segfault 1.1 putlog(LOG_MISC, "*", "RECEIVED QUIT SIGNAL (IGNORING)");
346     return;
347     }
348    
349     static void got_hup(int z)
350     {
351     write_userfile(-1);
352 stdarg 1.85 check_bind_event("sighup");
353 segfault 1.1 if (die_on_sighup) {
354     fatal("HANGUP SIGNAL -- SIGNING OFF", 0);
355     } else
356     putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
357     do_restart = -2;
358     return;
359     }
360    
361 fabian 1.27 /* A call to resolver (gethostbyname, etc) timed out
362     */
363 segfault 1.1 static void got_alarm(int z)
364     {
365     longjmp(alarmret, 1);
366 fabian 1.27
367     /* -Never reached- */
368 segfault 1.1 }
369    
370 fabian 1.27 /* Got ILL signal -- log context and continue
371     */
372 segfault 1.1 static void got_ill(int z)
373     {
374 stdarg 1.85 check_bind_event("sigill");
375 fabian 1.11 #ifdef DEBUG_CONTEXT
376 segfault 1.1 putlog(LOG_MISC, "*", "* Context: %s/%d [%s]", cx_file[cx_ptr],
377     cx_line[cx_ptr], (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
378 fabian 1.5 #endif
379 segfault 1.1 }
380    
381 fabian 1.11 #ifdef DEBUG_CONTEXT
382 fabian 1.10 /* Context */
383 fabian 1.44 void eggContext(const char *file, int line, const char *module)
384 fabian 1.10 {
385 fabian 1.39 char x[31], *p;
386 fabian 1.10
387 fabian 1.39 p = strrchr(file, '/');
388     if (!module) {
389 guppy 1.49 strncpyz(x, p ? p + 1 : file, sizeof x);
390 fabian 1.39 } else
391     egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
392 fabian 1.10 cx_ptr = ((cx_ptr + 1) & 15);
393     strcpy(cx_file[cx_ptr], x);
394     cx_line[cx_ptr] = line;
395     cx_note[cx_ptr][0] = 0;
396     }
397    
398 fabian 1.27 /* Called from the ContextNote macro.
399     */
400 fabian 1.44 void eggContextNote(const char *file, int line, const char *module,
401     const char *note)
402 fabian 1.10 {
403 fabian 1.39 char x[31], *p;
404 fabian 1.10
405 fabian 1.39 p = strrchr(file, '/');
406     if (!module) {
407 guppy 1.49 strncpyz(x, p ? p + 1 : file, sizeof x);
408 fabian 1.39 } else
409     egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
410 fabian 1.10 cx_ptr = ((cx_ptr + 1) & 15);
411     strcpy(cx_file[cx_ptr], x);
412     cx_line[cx_ptr] = line;
413 guppy 1.49 strncpyz(cx_note[cx_ptr], note, sizeof cx_note[cx_ptr]);
414 fabian 1.10 }
415 fabian 1.11 #endif
416 fabian 1.10
417 segfault 1.1 static void do_arg(char *s)
418     {
419 guppy 1.49 char x[1024], *z = x;
420 segfault 1.1 int i;
421    
422     if (s[0] == '-')
423     for (i = 1; i < strlen(s); i++) {
424 guppy 1.49 switch (s[i]) {
425     case 'n':
426 segfault 1.1 backgrd = 0;
427 guppy 1.49 break;
428     case 'c':
429 segfault 1.1 con_chan = 1;
430     term_z = 0;
431 guppy 1.49 break;
432     case 't':
433 segfault 1.1 con_chan = 0;
434     term_z = 1;
435 guppy 1.49 break;
436     case 'm':
437 segfault 1.1 make_userfile = 1;
438 guppy 1.49 break;
439     case 'v':
440     strncpyz(x, egg_version, sizeof x);
441 segfault 1.1 newsplit(&z);
442     newsplit(&z);
443     printf("%s\n", version);
444     if (z[0])
445     printf(" (patches: %s)\n", z);
446 fabian 1.43 bg_send_quit(BG_ABORT);
447 segfault 1.1 exit(0);
448 guppy 1.49 break; /* this should never be reached */
449     case 'h':
450 segfault 1.1 printf("\n%s\n\n", version);
451 ite 1.73 printf(_("Command line arguments:\n\
452     -h help\n\
453     -v print version and exit\n\
454     -n don't go into the background\n\
455     -c (with -n) display channel stats every 10 seconds\n\
456     -t (with -n) use terminal to simulate dcc-chat\n\
457     -m userfile creation mode\n\
458     optional config filename (default 'eggdrop.conf')\n"));
459 segfault 1.1 printf("\n");
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 segfault 1.1 }
464     } else
465 guppy 1.49 strncpyz(configfile, s, sizeof configfile);
466 segfault 1.1 }
467    
468 fabian 1.44 void backup_userfile(void)
469 segfault 1.1 {
470 guppy 1.49 char s[125];
471 segfault 1.1
472 ite 1.73 putlog(LOG_MISC, "*", _("Backing up user file..."));
473 guppy 1.49 egg_snprintf(s, sizeof s, "%s~bak", userfile);
474 segfault 1.1 copyfile(userfile, s);
475     }
476    
477 fabian 1.27 /* Timer info */
478     static int lastmin = 99;
479     static time_t then;
480     static struct tm nowtm;
481 segfault 1.1
482 fabian 1.34 /* Called once a second.
483     *
484     * Note: Try to not put any Context lines in here (guppy 21Mar2000).
485 fabian 1.27 */
486 segfault 1.1 static void core_secondly()
487     {
488     static int cnt = 0;
489     int miltime;
490    
491 stdarg 1.82 call_hook(HOOK_SECONDLY); /* Will be removed later */
492 segfault 1.1 cnt++;
493 fabian 1.27 if (cnt >= 10) { /* Every 10 seconds */
494 segfault 1.1 cnt = 0;
495     check_expired_dcc();
496     if (con_chan && !backgrd) {
497     dprintf(DP_STDOUT, "\033[2J\033[1;1H");
498     tell_verbose_status(DP_STDOUT);
499     do_module_report(DP_STDOUT, 0, "server");
500     do_module_report(DP_STDOUT, 0, "channels");
501     }
502     }
503 tothwolf 1.79 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
504 fabian 1.17 if (nowtm.tm_min != lastmin) {
505 segfault 1.1 int i = 0;
506    
507 fabian 1.27 /* Once a minute */
508 segfault 1.1 lastmin = (lastmin + 1) % 60;
509     call_hook(HOOK_MINUTELY);
510     check_expired_ignores();
511 fabian 1.27 autolink_cycle(NULL); /* Attempt autolinks */
512     /* In case for some reason more than 1 min has passed: */
513 fabian 1.17 while (nowtm.tm_min != lastmin) {
514 fabian 1.27 /* Timer drift, dammit */
515 fabian 1.17 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
516 segfault 1.1 i++;
517     lastmin = (lastmin + 1) % 60;
518     call_hook(HOOK_MINUTELY);
519     }
520     if (i > 1)
521     putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
522 fabian 1.17 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
523     if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
524 segfault 1.1 call_hook(HOOK_5MINUTELY);
525 guppy 1.49 if (!quick_logs) {
526 segfault 1.1 flushlogs();
527     check_logsize();
528     }
529 guppy 1.49 if (!miltime) { /* At midnight */
530     char s[25];
531 segfault 1.1 int j;
532    
533 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
534 fabian 1.4 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
535 guppy 1.69 call_hook(HOOK_BACKUP);
536 segfault 1.1 for (j = 0; j < max_logs; j++) {
537     if (logs[j].filename != NULL && logs[j].f != NULL) {
538     fclose(logs[j].f);
539     logs[j].f = NULL;
540     }
541     }
542     }
543     }
544 fabian 1.17 if (nowtm.tm_min == notify_users_at)
545 segfault 1.1 call_hook(HOOK_HOURLY);
546 fabian 1.27 /* These no longer need checking since they are all check vs minutely
547     * settings and we only get this far on the minute.
548     */
549 segfault 1.1 if (miltime == switch_logfiles_at) {
550     call_hook(HOOK_DAILY);
551     if (!keep_all_logs) {
552 ite 1.73 putlog(LOG_MISC, "*", _("Switching logfiles..."));
553 segfault 1.1 for (i = 0; i < max_logs; i++)
554     if (logs[i].filename) {
555     char s[1024];
556    
557     if (logs[i].f) {
558     fclose(logs[i].f);
559     logs[i].f = NULL;
560     }
561 guppy 1.49 egg_snprintf(s, sizeof s, "%s.yesterday", logs[i].filename);
562 segfault 1.1 unlink(s);
563 fabian 1.2 movefile(logs[i].filename, s);
564 segfault 1.1 }
565     }
566     }
567     }
568     }
569    
570     static void core_minutely()
571     {
572 stdarg 1.85 check_bind_time(&nowtm);
573 segfault 1.1 if (quick_logs != 0) {
574     flushlogs();
575     check_logsize();
576     }
577     }
578    
579     static void core_hourly()
580     {
581     write_userfile(-1);
582     }
583    
584     static void event_rehash()
585     {
586 stdarg 1.85 check_bind_event("rehash");
587 segfault 1.1 }
588    
589     static void event_prerehash()
590     {
591 stdarg 1.85 check_bind_event("prerehash");
592 segfault 1.1 }
593    
594     static void event_save()
595     {
596 stdarg 1.85 check_bind_event("save");
597 segfault 1.1 }
598    
599     static void event_logfile()
600     {
601 stdarg 1.85 check_bind_event("logfile");
602 segfault 1.1 }
603    
604 fabian 1.13 static void event_resettraffic()
605     {
606     otraffic_irc += otraffic_irc_today;
607     itraffic_irc += itraffic_irc_today;
608     otraffic_bn += otraffic_bn_today;
609     itraffic_bn += itraffic_bn_today;
610     otraffic_dcc += otraffic_dcc_today;
611     itraffic_dcc += itraffic_dcc_today;
612     otraffic_unknown += otraffic_unknown_today;
613     itraffic_unknown += itraffic_unknown_today;
614     otraffic_trans += otraffic_trans_today;
615     itraffic_trans += itraffic_trans_today;
616     otraffic_irc_today = otraffic_bn_today = 0;
617     otraffic_dcc_today = otraffic_unknown_today = 0;
618     itraffic_irc_today = itraffic_bn_today = 0;
619     itraffic_dcc_today = itraffic_unknown_today = 0;
620 fabian 1.18 itraffic_trans_today = otraffic_trans_today = 0;
621 fabian 1.13 }
622    
623 guppy 1.61 static void event_loaded()
624     {
625 stdarg 1.85 check_bind_event("loaded");
626 guppy 1.61 }
627    
628 segfault 1.1 void kill_tcl();
629     extern module_entry *module_list;
630     void restart_chons();
631    
632 tothwolf 1.79 int init_dcc_max(), init_userent(), init_misc(), init_net(),
633     init_modules(), init_tcl(int, char **);
634 stdarg 1.89 void timer_init();
635 stdarg 1.78 void botnet_init();
636 stdarg 1.88 void dns_init();
637 stdarg 1.83 void script_init();
638 stdarg 1.85 void binds_init();
639 fabian 1.11
640 fabian 1.44 void patch(const char *str)
641 fabian 1.11 {
642     char *p = strchr(egg_version, '+');
643    
644     if (!p)
645     p = &egg_version[strlen(egg_version)];
646     sprintf(p, "+%s", str);
647     egg_numver++;
648     sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
649     }
650 segfault 1.1
651 fabian 1.45 static inline void garbage_collect(void)
652     {
653     static u_8bit_t run_cnt = 0;
654    
655     if (run_cnt == 3)
656     garbage_collect_tclhash();
657     else
658     run_cnt++;
659     }
660    
661 segfault 1.1 int main(int argc, char **argv)
662     {
663     int xx, i;
664 guppy 1.49 char buf[520], s[25];
665 segfault 1.1 FILE *f;
666     struct sigaction sv;
667     struct chanset_t *chan;
668 stdarg 1.82 egg_timeval_t howlong;
669 segfault 1.1
670 tothwolf 1.81 #ifdef DEBUG
671 fabian 1.21 /* Make sure it can write core, if you make debug. Else it's pretty
672     * useless (dw)
673     */
674 fabian 1.15 {
675     #include <sys/resource.h>
676     struct rlimit cdlim;
677 fabian 1.21
678 fabian 1.15 cdlim.rlim_cur = RLIM_INFINITY;
679     cdlim.rlim_max = RLIM_INFINITY;
680 fabian 1.32 setrlimit(RLIMIT_CORE, &cdlim);
681 fabian 1.15 }
682     #endif
683    
684 fabian 1.27 /* Initialise context list */
685 fabian 1.32 for (i = 0; i < 16; i++)
686 fabian 1.10 Context;
687 fabian 1.32
688 ite 1.76 setlocale(LC_MESSAGES, "");
689     bindtextdomain(PACKAGE, LOCALEDIR);
690     textdomain(PACKAGE);
691    
692 segfault 1.1 #include "patch.h"
693 fabian 1.27 /* Version info! */
694 guppy 1.49 egg_snprintf(ver, sizeof ver, "eggdrop v%s", egg_version);
695 guppy 1.56 egg_snprintf(version, sizeof version, "Eggdrop v%s (C)1997 Robey Pointer (C)2001 Eggheads",
696     egg_version);
697 fabian 1.27 /* Now add on the patchlevel (for Tcl) */
698 fabian 1.2 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
699 segfault 1.1 strcat(egg_version, egg_xtra);
700     #ifdef STOP_UAC
701     {
702     int nvpair[2];
703    
704     nvpair[0] = SSIN_UACPROC;
705     nvpair[1] = UAC_NOPRINT;
706     setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
707     }
708     #endif
709 fabian 1.27
710     /* Set up error traps: */
711 segfault 1.1 sv.sa_handler = got_bus;
712     sigemptyset(&sv.sa_mask);
713     #ifdef SA_RESETHAND
714     sv.sa_flags = SA_RESETHAND;
715     #else
716     sv.sa_flags = 0;
717     #endif
718     sigaction(SIGBUS, &sv, NULL);
719     sv.sa_handler = got_segv;
720     sigaction(SIGSEGV, &sv, NULL);
721     #ifdef SA_RESETHAND
722     sv.sa_flags = 0;
723     #endif
724     sv.sa_handler = got_fpe;
725     sigaction(SIGFPE, &sv, NULL);
726     sv.sa_handler = got_term;
727     sigaction(SIGTERM, &sv, NULL);
728     sv.sa_handler = got_hup;
729     sigaction(SIGHUP, &sv, NULL);
730     sv.sa_handler = got_quit;
731     sigaction(SIGQUIT, &sv, NULL);
732     sv.sa_handler = SIG_IGN;
733     sigaction(SIGPIPE, &sv, NULL);
734     sv.sa_handler = got_ill;
735     sigaction(SIGILL, &sv, NULL);
736     sv.sa_handler = got_alarm;
737     sigaction(SIGALRM, &sv, NULL);
738 fabian 1.27
739     /* Initialize variables and stuff */
740 segfault 1.1 now = time(NULL);
741     chanset = NULL;
742 tothwolf 1.79 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
743 fabian 1.17 lastmin = nowtm.tm_min;
744 poptix 1.63 srandom(now % (getpid() + getppid()));
745 segfault 1.1 if (argc > 1)
746     for (i = 1; i < argc; i++)
747     do_arg(argv[i]);
748     printf("\n%s\n", version);
749 guppy 1.53
750     /* Don't allow eggdrop to run as root */
751     if (((int) getuid() == 0) || ((int) geteuid() == 0))
752 ite 1.76 fatal(_("ERROR: Eggdrop will not run as root!"), 0);
753 guppy 1.53
754 stdarg 1.83 script_init();
755 stdarg 1.89 timer_init();
756 stdarg 1.88 dns_init();
757 stdarg 1.85 binds_init();
758     core_binds_init();
759 segfault 1.1 init_dcc_max();
760     init_userent();
761     init_misc();
762 stdarg 1.78 botnet_init();
763 segfault 1.1 init_net();
764     init_modules();
765 stdarg 1.80
766 fabian 1.43 if (backgrd)
767     bg_prepare_split();
768 stdarg 1.80
769 fabian 1.8 init_tcl(argc, argv);
770 stdarg 1.80
771 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
772 segfault 1.1 strcpy(&s[11], &s[20]);
773     putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
774     chanprog();
775 guppy 1.49 if (!encrypt_pass) {
776 ite 1.73 printf(_("You have installed modules but have not selected an encryption\n\
777     module, please consult the default config file for info.\n"));
778 fabian 1.43 bg_send_quit(BG_ABORT);
779 segfault 1.1 exit(1);
780     }
781     i = 0;
782     for (chan = chanset; chan; chan = chan->next)
783     i++;
784 fabian 1.4 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
785 segfault 1.1 botnetnick, i, count_users(userlist));
786     cache_miss = 0;
787     cache_hit = 0;
788 guppy 1.49 egg_snprintf(pid_file, sizeof pid_file, "pid.%s", botnetnick);
789 fabian 1.27
790     /* Check for pre-existing eggdrop! */
791 segfault 1.1 f = fopen(pid_file, "r");
792     if (f != NULL) {
793     fgets(s, 10, f);
794     xx = atoi(s);
795 fabian 1.27 kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
796     is used */
797 segfault 1.1 if (errno != ESRCH) {
798 ite 1.73 printf(_("I detect %s already running from this directory.\n"), origbotname);
799     printf(_("If this is incorrect, erase the %s\n"), pid_file);
800 fabian 1.43 bg_send_quit(BG_ABORT);
801 segfault 1.1 exit(1);
802     }
803     }
804 fabian 1.27
805     /* Move into background? */
806 segfault 1.1 if (backgrd) {
807 fabian 1.38 #ifndef CYGWIN_HACKS
808 fabian 1.43 bg_do_split();
809 fabian 1.38 } else { /* !backgrd */
810 fabian 1.5 #endif
811 fabian 1.38 xx = getpid();
812     if (xx != 0) {
813     FILE *fp;
814    
815     /* Write pid to file */
816     unlink(pid_file);
817     fp = fopen(pid_file, "w");
818     if (fp != NULL) {
819     fprintf(fp, "%u\n", xx);
820     if (fflush(fp)) {
821     /* Let the bot live since this doesn't appear to be a botchk */
822 ite 1.73 printf(_("* Warning! Could not write %s file!\n"), pid_file);
823 fabian 1.38 fclose(fp);
824     unlink(pid_file);
825     } else
826     fclose(fp);
827 fabian 1.27 } else
828 ite 1.73 printf(_("* Warning! Could not write %s file!\n"), pid_file);
829 fabian 1.38 #ifdef CYGWIN_HACKS
830 guppy 1.68 printf("Launched into the background (pid: %d)\n\n", xx);
831 fabian 1.38 #endif
832     }
833 segfault 1.1 }
834 fabian 1.38
835     use_stderr = 0; /* Stop writing to stderr now */
836 segfault 1.1 if (backgrd) {
837 fabian 1.27 /* Ok, try to disassociate from controlling terminal (finger cross) */
838 fabian 1.5 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
839 segfault 1.1 setpgid(0, 0);
840     #endif
841 fabian 1.38 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
842 segfault 1.1 freopen("/dev/null", "r", stdin);
843     freopen("/dev/null", "w", stdout);
844     freopen("/dev/null", "w", stderr);
845 poptix 1.62 #ifdef CYGWIN_HACKS
846     FreeConsole();
847     #endif
848 segfault 1.1 }
849 fabian 1.27
850     /* Terminal emulating dcc chat */
851 fabian 1.42 if (!backgrd && term_z) {
852 segfault 1.1 int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
853    
854 drummer 1.71 dcc[n].addr[0] = '\0';
855 segfault 1.1 dcc[n].sock = STDOUT;
856     dcc[n].timeval = now;
857     dcc[n].u.chat->con_flags = conmask;
858     dcc[n].u.chat->strip_flags = STRIP_ALL;
859     dcc[n].status = STAT_ECHO;
860     strcpy(dcc[n].nick, "HQ");
861     strcpy(dcc[n].host, "llama@console");
862     dcc[n].user = get_user_by_handle(userlist, "HQ");
863 fabian 1.27 /* Make sure there's an innocuous HQ user if needed */
864 segfault 1.1 if (!dcc[n].user) {
865 fabian 1.24 userlist = adduser(userlist, "HQ", "none", "-", USER_PARTY);
866 segfault 1.1 dcc[n].user = get_user_by_handle(userlist, "HQ");
867     }
868 fabian 1.27 setsock(STDOUT, 0); /* Entry in net table */
869 segfault 1.1 dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
870     dcc_chatter(n);
871     }
872 fabian 1.27
873 segfault 1.1 then = now;
874     online_since = now;
875 fabian 1.27 autolink_cycle(NULL); /* Hurry and connect to tandem bots */
876 segfault 1.1 add_help_reference("cmds1.help");
877     add_help_reference("cmds2.help");
878     add_help_reference("core.help");
879 stdarg 1.82 howlong.sec = 1;
880     howlong.usec = 0;
881     timer_create_repeater(&howlong, (Function) core_secondly);
882 fabian 1.22 add_hook(HOOK_MINUTELY, (Function) core_minutely);
883     add_hook(HOOK_HOURLY, (Function) core_hourly);
884     add_hook(HOOK_REHASH, (Function) event_rehash);
885     add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
886     add_hook(HOOK_USERFILE, (Function) event_save);
887 guppy 1.69 add_hook(HOOK_BACKUP, (Function) backup_userfile);
888 fabian 1.22 add_hook(HOOK_DAILY, (Function) event_logfile);
889     add_hook(HOOK_DAILY, (Function) event_resettraffic);
890 guppy 1.61 add_hook(HOOK_LOADED, (Function) event_loaded);
891    
892     call_hook(HOOK_LOADED);
893 segfault 1.1
894     debug0("main: entering loop");
895     while (1) {
896     int socket_cleanup = 0;
897    
898 fabian 1.43 #if !defined(HAVE_PRE7_5_TCL)
899 fabian 1.27 /* Process a single tcl event */
900 segfault 1.1 Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
901 fabian 1.5 #endif
902 fabian 1.45
903 fabian 1.27 /* Lets move some of this here, reducing the numer of actual
904     * calls to periodic_timers
905     */
906 segfault 1.1 now = time(NULL);
907 fabian 1.27 random(); /* Woop, lets really jumble things */
908 stdarg 1.82 timer_run();
909 fabian 1.27 if (now != then) { /* Once a second */
910 stdarg 1.82 /* call_hook(HOOK_SECONDLY); */
911 segfault 1.1 then = now;
912     }
913 fabian 1.45
914     /* Only do this every so often. */
915 segfault 1.1 if (!socket_cleanup) {
916 fabian 1.45 socket_cleanup = 5;
917    
918     /* Remove dead dcc entries. */
919 fabian 1.16 dcc_remove_lost();
920 fabian 1.45
921     /* Check for server or dcc activity. */
922 segfault 1.1 dequeue_sockets();
923     } else
924     socket_cleanup--;
925 fabian 1.45
926     /* Free unused structures. */
927     garbage_collect();
928    
929 segfault 1.1 xx = sockgets(buf, &i);
930 fabian 1.27 if (xx >= 0) { /* Non-error */
931 segfault 1.1 int idx;
932    
933     for (idx = 0; idx < dcc_total; idx++)
934     if (dcc[idx].sock == xx) {
935 fabian 1.13 if (dcc[idx].type && dcc[idx].type->activity) {
936 fabian 1.27 /* Traffic stats */
937     if (dcc[idx].type->name) {
938     if (!strncmp(dcc[idx].type->name, "BOT", 3))
939     itraffic_bn_today += strlen(buf) + 1;
940     else if (!strcmp(dcc[idx].type->name, "SERVER"))
941     itraffic_irc_today += strlen(buf) + 1;
942     else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
943     itraffic_dcc_today += strlen(buf) + 1;
944     else if (!strncmp(dcc[idx].type->name, "FILES", 5))
945     itraffic_dcc_today += strlen(buf) + 1;
946     else if (!strcmp(dcc[idx].type->name, "SEND"))
947     itraffic_trans_today += strlen(buf) + 1;
948     else if (!strncmp(dcc[idx].type->name, "GET", 3))
949     itraffic_trans_today += strlen(buf) + 1;
950     else
951     itraffic_unknown_today += strlen(buf) + 1;
952     }
953 guppy 1.56 dcc[idx].type->activity(idx, buf, i);
954 fabian 1.13 } else
955 segfault 1.1 putlog(LOG_MISC, "*",
956     "!!! untrapped dcc activity: type %s, sock %d",
957     dcc[idx].type->name, dcc[idx].sock);
958     break;
959     }
960     } else if (xx == -1) { /* EOF from someone */
961     int idx;
962    
963 fabian 1.45 if (i == STDOUT && !backgrd)
964 segfault 1.1 fatal("END OF FILE ON TERMINAL", 0);
965     for (idx = 0; idx < dcc_total; idx++)
966     if (dcc[idx].sock == i) {
967     if (dcc[idx].type && dcc[idx].type->eof)
968     dcc[idx].type->eof(idx);
969     else {
970     putlog(LOG_MISC, "*",
971     "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
972 fabian 1.2 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
973     killsock(i);
974 segfault 1.1 lostdcc(idx);
975     }
976     idx = dcc_total + 1;
977     }
978     if (idx == dcc_total) {
979     putlog(LOG_MISC, "*",
980 fabian 1.2 "(@) EOF socket %d, not a dcc socket, not anything.", i);
981     close(i);
982     killsock(i);
983 segfault 1.1 }
984 fabian 1.45 } else if (xx == -2 && errno != EINTR) { /* select() error */
985 segfault 1.1 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
986     for (i = 0; i < dcc_total; i++) {
987     if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
988     putlog(LOG_MISC, "*",
989     "DCC socket %d (type %d, name '%s') expired -- pfft",
990     dcc[i].sock, dcc[i].type, dcc[i].nick);
991     killsock(dcc[i].sock);
992     lostdcc(i);
993     i--;
994     }
995     }
996 fabian 1.45 } else if (xx == -3) {
997 segfault 1.1 call_hook(HOOK_IDLE);
998 fabian 1.27 socket_cleanup = 0; /* If we've been idle, cleanup & flush */
999 segfault 1.1 }
1000 fabian 1.27
1001 segfault 1.1 if (do_restart) {
1002     if (do_restart == -2)
1003     rehash();
1004     else {
1005 fabian 1.27 /* Unload as many modules as possible */
1006 segfault 1.1 int f = 1;
1007     module_entry *p;
1008     Function x;
1009     char xx[256];
1010 guppy 1.59
1011     /* oops, I guess we should call this event before tcl is restarted */
1012 stdarg 1.85 check_bind_event("prerestart");
1013 segfault 1.1
1014     while (f) {
1015     f = 0;
1016     for (p = module_list; p != NULL; p = p->next) {
1017     dependancy *d = dependancy_list;
1018     int ok = 1;
1019    
1020     while (ok && d) {
1021     if (d->needed == p)
1022     ok = 0;
1023     d = d->next;
1024     }
1025     if (ok) {
1026     strcpy(xx, p->name);
1027     if (module_unload(xx, origbotname) == NULL) {
1028     f = 1;
1029     break;
1030     }
1031     }
1032     }
1033     }
1034     p = module_list;
1035     if (p && p->next && p->next->next)
1036 fabian 1.45 /* Should be only 2 modules now - blowfish (or some other
1037     encryption module) and eggdrop. */
1038 ite 1.73 putlog(LOG_MISC, "*", _("Stagnant module; there WILL be memory leaks!"));
1039 segfault 1.1 flushlogs();
1040     kill_tcl();
1041 stdarg 1.87 timer_destroy_all(); /* Destroy all timers. */
1042 fabian 1.8 init_tcl(argc, argv);
1043 fabian 1.30 /* We expect the encryption module as the current module pointed
1044     * to by `module_list'.
1045     */
1046 segfault 1.1 x = p->funcs[MODCALL_START];
1047 fabian 1.30 /* `NULL' indicates that we just recently restarted. The module
1048     * is expected to re-initialise as needed.
1049     */
1050     x(NULL);
1051 segfault 1.1 rehash();
1052     restart_chons();
1053 guppy 1.61 call_hook(HOOK_LOADED);
1054 segfault 1.1 }
1055     do_restart = 0;
1056     }
1057     }
1058     }

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