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

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Revision 1.83 - (hide annotations) (download) (as text)
Sun Oct 14 04:44:36 2001 UTC (17 years, 10 months ago) by stdarg
Branch: MAIN
Changes since 1.82: +3 -1 lines
File MIME type: text/x-chdr
Added code for tclscript.mod
Made it compile correctly with configure et al (hopefully...)
Removed stuff for encodings from tcl.c
egglib/msprintf - like sprintf but mallocs a big enough buffer for you (no overruns, no truncated data)
egglib/mstack - simple stack structure (push, pop) that grows with malloc and is accessible in array form

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 1.83 * $Id: main.c,v 1.82 2001/10/13 12:00:22 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 fabian 1.38
58 drummer 1.71 #include "adns/adns.h"
59    
60 poptix 1.62 #ifdef CYGWIN_HACKS
61     #include <windows.h>
62     #endif
63    
64 segfault 1.1 #ifndef _POSIX_SOURCE
65 fabian 1.27 /* Solaris needs this */
66 segfault 1.1 #define _POSIX_SOURCE 1
67     #endif
68    
69 fabian 1.27 extern char origbotname[], userfile[], botnetnick[];
70     extern int dcc_total, conmask, cache_hit, cache_miss,
71     max_logs, quick_logs;
72     extern struct dcc_t *dcc;
73     extern struct userrec *userlist;
74     extern struct chanset_t *chanset;
75     extern log_t *logs;
76     extern Tcl_Interp *interp;
77     extern tcl_timer_t *timer,
78     *utimer;
79     extern jmp_buf alarmret;
80    
81 segfault 1.1
82 guppy 1.56 /*
83 segfault 1.1 * Please use the PATCH macro instead of directly altering the version
84     * string from now on (it makes it much easier to maintain patches).
85     * Also please read the README file regarding your rights to distribute
86     * modified versions of this bot.
87     */
88    
89 ite 1.76 char egg_version[1024] = VERSION;
90     int egg_numver = VERSION_NUM;
91 segfault 1.1
92 fabian 1.27 char notify_new[121] = ""; /* Person to send a note to for new users */
93     int default_flags = 0; /* Default user flags and */
94     int default_uflags = 0; /* Default userdefinied flags for people
95     who say 'hello' or for .adduser */
96    
97     int backgrd = 1; /* Run in the background? */
98     int con_chan = 0; /* Foreground: constantly display channel
99     stats? */
100     int term_z = 0; /* Foreground: use the terminal as a party
101     line? */
102     char configfile[121] = "eggdrop.conf"; /* Name of the config file */
103     char helpdir[121]; /* Directory of help files (if used) */
104     char textdir[121] = ""; /* Directory for text files that get dumped */
105     int keep_all_logs = 0; /* Never erase logfiles, no matter how old
106     they are? */
107 fabian 1.40 char logfile_suffix[21] = ".%d%b%Y"; /* Format of logfile suffix. */
108 fabian 1.27 time_t online_since; /* Unix-time that the bot loaded up */
109     int make_userfile = 0; /* Using bot in make-userfile mode? (first
110     user to 'hello' becomes master) */
111     char owner[121] = ""; /* Permanent owner(s) of the bot */
112 guppy 1.49 char pid_file[HANDLEN + 5]; /* Name of the file for the pid to be
113 fabian 1.27 stored in */
114     int save_users_at = 0; /* How many minutes past the hour to
115     save the userfile? */
116     int notify_users_at = 0; /* How many minutes past the hour to
117     notify users of notes? */
118     int switch_logfiles_at = 300; /* When (military time) to switch logfiles */
119     char version[81]; /* Version info (long form) */
120     char ver[41]; /* Version info (short form) */
121     char egg_xtra[2048]; /* Patch info */
122     int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
123     int do_restart = 0; /* .restart has been called, restart asap */
124     int die_on_sighup = 0; /* die if bot receives SIGHUP */
125 guppy 1.52 int die_on_sigterm = 1; /* die if bot receives SIGTERM */
126 fabian 1.27 int resolve_timeout = 15; /* hostname/address lookup timeout */
127 guppy 1.72 char quit_msg[1024]; /* quit message */
128 fabian 1.27 time_t now; /* duh, now :) */
129    
130     /* Traffic stats
131     */
132 fabian 1.33 unsigned long otraffic_irc = 0;
133     unsigned long otraffic_irc_today = 0;
134     unsigned long otraffic_bn = 0;
135     unsigned long otraffic_bn_today = 0;
136     unsigned long otraffic_dcc = 0;
137     unsigned long otraffic_dcc_today = 0;
138     unsigned long otraffic_filesys = 0;
139     unsigned long otraffic_filesys_today = 0;
140     unsigned long otraffic_trans = 0;
141     unsigned long otraffic_trans_today = 0;
142     unsigned long otraffic_unknown = 0;
143     unsigned long otraffic_unknown_today = 0;
144     unsigned long itraffic_irc = 0;
145     unsigned long itraffic_irc_today = 0;
146     unsigned long itraffic_bn = 0;
147     unsigned long itraffic_bn_today = 0;
148     unsigned long itraffic_dcc = 0;
149     unsigned long itraffic_dcc_today = 0;
150     unsigned long itraffic_trans = 0;
151     unsigned long itraffic_trans_today = 0;
152     unsigned long itraffic_unknown = 0;
153     unsigned long itraffic_unknown_today = 0;
154 segfault 1.1
155 fabian 1.11 #ifdef DEBUG_CONTEXT
156 fabian 1.27 /* Context storage for fatal crashes */
157     char cx_file[16][30];
158     char cx_note[16][256];
159     int cx_line[16];
160     int cx_ptr = 0;
161 fabian 1.10 #endif
162 segfault 1.1
163 fabian 1.27
164 fabian 1.44 void fatal(const char *s, int recoverable)
165 segfault 1.1 {
166     int i;
167    
168     putlog(LOG_MISC, "*", "* %s", s);
169     flushlogs();
170     for (i = 0; i < dcc_total; i++)
171 fabian 1.19 if (dcc[i].sock >= 0)
172 fabian 1.15 killsock(dcc[i].sock);
173 segfault 1.1 unlink(pid_file);
174 fabian 1.43 if (!recoverable) {
175     bg_send_quit(BG_ABORT);
176 segfault 1.1 exit(1);
177 fabian 1.43 }
178 segfault 1.1 }
179    
180     static void check_expired_dcc()
181     {
182     int i;
183    
184     for (i = 0; i < dcc_total; i++)
185     if (dcc[i].type && dcc[i].type->timeout_val &&
186     ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
187     if (dcc[i].type->timeout)
188     dcc[i].type->timeout(i);
189     else if (dcc[i].type->eof)
190     dcc[i].type->eof(i);
191     else
192     continue;
193 fabian 1.27 /* Only timeout 1 socket per cycle, too risky for more */
194 segfault 1.1 return;
195     }
196     }
197    
198 fabian 1.11 #ifdef DEBUG_CONTEXT
199 fabian 1.27 static int nested_debug = 0;
200 segfault 1.1
201     void write_debug()
202     {
203     int x;
204 guppy 1.49 char s[25];
205 segfault 1.1 int y;
206    
207     if (nested_debug) {
208 fabian 1.27 /* Yoicks, if we have this there's serious trouble!
209     * All of these are pretty reliable, so we'll try these.
210 guppy 1.56 *
211 fabian 1.27 * NOTE: dont try and display context-notes in here, it's
212     * _not_ safe <cybah>
213     */
214 segfault 1.1 x = creat("DEBUG.DEBUG", 0644);
215     setsock(x, SOCK_NONSOCK);
216     if (x >= 0) {
217 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
218 guppy 1.57 dprintf(-x, "Debug (%s) written %s\n", ver, s);
219 guppy 1.60 dprintf(-x, "Please report problem to bugs@eggheads.org\n");
220 guppy 1.57 dprintf(-x, "after a visit to http://www.eggheads.org/bugzilla/\n");
221 segfault 1.1 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
222     dprintf(-x, "Context: ");
223     cx_ptr = cx_ptr & 15;
224     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
225     dprintf(-x, "%s/%d,\n ", cx_file[y], cx_line[y]);
226     dprintf(-x, "%s/%d\n\n", cx_file[y], cx_line[y]);
227     killsock(x);
228     close(x);
229     }
230 fabian 1.43 bg_send_quit(BG_ABORT);
231 fabian 1.27 exit(1); /* Dont even try & tell people about, that may
232     have caused the fault last time. */
233 segfault 1.1 } else
234     nested_debug = 1;
235     putlog(LOG_MISC, "*", "* Last context: %s/%d [%s]", cx_file[cx_ptr],
236     cx_line[cx_ptr], cx_note[cx_ptr][0] ? cx_note[cx_ptr] : "");
237 fabian 1.2 putlog(LOG_MISC, "*", "* Please REPORT this BUG!");
238     putlog(LOG_MISC, "*", "* Check doc/BUG-REPORT on how to do so.");
239 fabian 1.9 x = creat("DEBUG", 0644);
240 segfault 1.1 setsock(x, SOCK_NONSOCK);
241     if (x < 0) {
242     putlog(LOG_MISC, "*", "* Failed to write DEBUG");
243     } else {
244 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
245 guppy 1.57 dprintf(-x, "Debug (%s) written %s\n", ver, s);
246 segfault 1.1 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
247     #ifdef STATIC
248     dprintf(-x, "STATICALLY LINKED\n");
249     #endif
250 guppy 1.51
251     /* info library */
252 poptix 1.65 dprintf(-x, "TCL library: %s\n",
253 guppy 1.51 ((interp) && (Tcl_Eval(interp, "info library") == TCL_OK)) ?
254     interp->result : "*unknown*");
255    
256 guppy 1.74 /* info tclversion/patchlevel */
257 poptix 1.65 dprintf(-x, "TCL version: %s (header version %s)\n",
258 guppy 1.51 ((interp) && (Tcl_Eval(interp, "info patchlevel") == TCL_OK)) ?
259 guppy 1.74 interp->result : (Tcl_Eval(interp, "info tclversion") == TCL_OK) ?
260     interp->result : "*unknown*", TCL_PATCH_LEVEL ? TCL_PATCH_LEVEL :
261     "*unknown*");
262 poptix 1.65
263     #if HAVE_TCL_THREADS
264     dprintf(-x, "TCL is threaded\n");
265     #endif
266 guppy 1.51
267     #ifdef CCFLAGS
268 segfault 1.1 dprintf(-x, "Compile flags: %s\n", CCFLAGS);
269 guppy 1.51 #endif
270     #ifdef LDFLAGS
271 guppy 1.64 dprintf(-x, "Link flags: %s\n", LDFLAGS);
272 guppy 1.51 #endif
273     #ifdef STRIPFLAGS
274 guppy 1.64 dprintf(-x, "Strip flags: %s\n", STRIPFLAGS);
275 guppy 1.51 #endif
276    
277 segfault 1.1 dprintf(-x, "Context: ");
278     cx_ptr = cx_ptr & 15;
279     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
280     dprintf(-x, "%s/%d, [%s]\n ", cx_file[y], cx_line[y],
281     (cx_note[y][0]) ? cx_note[y] : "");
282     dprintf(-x, "%s/%d [%s]\n\n", cx_file[cx_ptr], cx_line[cx_ptr],
283     (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
284     tell_dcc(-x);
285     dprintf(-x, "\n");
286 tothwolf 1.79 tell_netdebug(-x);
287 segfault 1.1 killsock(x);
288     close(x);
289     putlog(LOG_MISC, "*", "* Wrote DEBUG");
290     }
291     }
292 fabian 1.10 #endif
293 fabian 1.2
294 segfault 1.1 static void got_bus(int z)
295     {
296 fabian 1.11 #ifdef DEBUG_CONTEXT
297 segfault 1.1 write_debug();
298 fabian 1.10 #endif
299 segfault 1.1 fatal("BUS ERROR -- CRASHING!", 1);
300     #ifdef SA_RESETHAND
301     kill(getpid(), SIGBUS);
302     #else
303 fabian 1.43 bg_send_quit(BG_ABORT);
304 segfault 1.1 exit(1);
305     #endif
306     }
307    
308     static void got_segv(int z)
309     {
310 fabian 1.11 #ifdef DEBUG_CONTEXT
311 segfault 1.1 write_debug();
312 fabian 1.10 #endif
313 segfault 1.1 fatal("SEGMENT VIOLATION -- CRASHING!", 1);
314     #ifdef SA_RESETHAND
315     kill(getpid(), SIGSEGV);
316     #else
317 fabian 1.43 bg_send_quit(BG_ABORT);
318 segfault 1.1 exit(1);
319     #endif
320     }
321    
322     static void got_fpe(int z)
323     {
324 fabian 1.11 #ifdef DEBUG_CONTEXT
325 segfault 1.1 write_debug();
326 fabian 1.10 #endif
327 segfault 1.1 fatal("FLOATING POINT ERROR -- CRASHING!", 0);
328     }
329    
330     static void got_term(int z)
331     {
332     write_userfile(-1);
333     check_tcl_event("sigterm");
334     if (die_on_sigterm) {
335     fatal("TERMINATE SIGNAL -- SIGNING OFF", 0);
336     } else {
337     putlog(LOG_MISC, "*", "RECEIVED TERMINATE SIGNAL (IGNORING)");
338     }
339     }
340    
341     static void got_quit(int z)
342     {
343     check_tcl_event("sigquit");
344     putlog(LOG_MISC, "*", "RECEIVED QUIT SIGNAL (IGNORING)");
345     return;
346     }
347    
348     static void got_hup(int z)
349     {
350     write_userfile(-1);
351     check_tcl_event("sighup");
352     if (die_on_sighup) {
353     fatal("HANGUP SIGNAL -- SIGNING OFF", 0);
354     } else
355     putlog(LOG_MISC, "*", "Received HUP signal: rehashing...");
356     do_restart = -2;
357     return;
358     }
359    
360 fabian 1.27 /* A call to resolver (gethostbyname, etc) timed out
361     */
362 segfault 1.1 static void got_alarm(int z)
363     {
364     longjmp(alarmret, 1);
365 fabian 1.27
366     /* -Never reached- */
367 segfault 1.1 }
368    
369 fabian 1.27 /* Got ILL signal -- log context and continue
370     */
371 segfault 1.1 static void got_ill(int z)
372     {
373     check_tcl_event("sigill");
374 fabian 1.11 #ifdef DEBUG_CONTEXT
375 segfault 1.1 putlog(LOG_MISC, "*", "* Context: %s/%d [%s]", cx_file[cx_ptr],
376     cx_line[cx_ptr], (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
377 fabian 1.5 #endif
378 segfault 1.1 }
379    
380 fabian 1.11 #ifdef DEBUG_CONTEXT
381 fabian 1.10 /* Context */
382 fabian 1.44 void eggContext(const char *file, int line, const char *module)
383 fabian 1.10 {
384 fabian 1.39 char x[31], *p;
385 fabian 1.10
386 fabian 1.39 p = strrchr(file, '/');
387     if (!module) {
388 guppy 1.49 strncpyz(x, p ? p + 1 : file, sizeof x);
389 fabian 1.39 } else
390     egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
391 fabian 1.10 cx_ptr = ((cx_ptr + 1) & 15);
392     strcpy(cx_file[cx_ptr], x);
393     cx_line[cx_ptr] = line;
394     cx_note[cx_ptr][0] = 0;
395     }
396    
397 fabian 1.27 /* Called from the ContextNote macro.
398     */
399 fabian 1.44 void eggContextNote(const char *file, int line, const char *module,
400     const char *note)
401 fabian 1.10 {
402 fabian 1.39 char x[31], *p;
403 fabian 1.10
404 fabian 1.39 p = strrchr(file, '/');
405     if (!module) {
406 guppy 1.49 strncpyz(x, p ? p + 1 : file, sizeof x);
407 fabian 1.39 } else
408     egg_snprintf(x, 31, "%s:%s", module, p ? p + 1 : file);
409 fabian 1.10 cx_ptr = ((cx_ptr + 1) & 15);
410     strcpy(cx_file[cx_ptr], x);
411     cx_line[cx_ptr] = line;
412 guppy 1.49 strncpyz(cx_note[cx_ptr], note, sizeof cx_note[cx_ptr]);
413 fabian 1.10 }
414 fabian 1.11 #endif
415 fabian 1.10
416 segfault 1.1 static void do_arg(char *s)
417     {
418 guppy 1.49 char x[1024], *z = x;
419 segfault 1.1 int i;
420    
421     if (s[0] == '-')
422     for (i = 1; i < strlen(s); i++) {
423 guppy 1.49 switch (s[i]) {
424     case 'n':
425 segfault 1.1 backgrd = 0;
426 guppy 1.49 break;
427     case 'c':
428 segfault 1.1 con_chan = 1;
429     term_z = 0;
430 guppy 1.49 break;
431     case 't':
432 segfault 1.1 con_chan = 0;
433     term_z = 1;
434 guppy 1.49 break;
435     case 'm':
436 segfault 1.1 make_userfile = 1;
437 guppy 1.49 break;
438     case 'v':
439     strncpyz(x, egg_version, sizeof x);
440 segfault 1.1 newsplit(&z);
441     newsplit(&z);
442     printf("%s\n", version);
443     if (z[0])
444     printf(" (patches: %s)\n", z);
445 fabian 1.43 bg_send_quit(BG_ABORT);
446 segfault 1.1 exit(0);
447 guppy 1.49 break; /* this should never be reached */
448     case 'h':
449 segfault 1.1 printf("\n%s\n\n", version);
450 ite 1.73 printf(_("Command line arguments:\n\
451     -h help\n\
452     -v print version and exit\n\
453     -n don't go into the background\n\
454     -c (with -n) display channel stats every 10 seconds\n\
455     -t (with -n) use terminal to simulate dcc-chat\n\
456     -m userfile creation mode\n\
457     optional config filename (default 'eggdrop.conf')\n"));
458 segfault 1.1 printf("\n");
459 fabian 1.43 bg_send_quit(BG_ABORT);
460 segfault 1.1 exit(0);
461 guppy 1.49 break; /* this should never be reached */
462 segfault 1.1 }
463     } else
464 guppy 1.49 strncpyz(configfile, s, sizeof configfile);
465 segfault 1.1 }
466    
467 fabian 1.44 void backup_userfile(void)
468 segfault 1.1 {
469 guppy 1.49 char s[125];
470 segfault 1.1
471 ite 1.73 putlog(LOG_MISC, "*", _("Backing up user file..."));
472 guppy 1.49 egg_snprintf(s, sizeof s, "%s~bak", userfile);
473 segfault 1.1 copyfile(userfile, s);
474     }
475    
476 fabian 1.27 /* Timer info */
477     static int lastmin = 99;
478     static time_t then;
479     static struct tm nowtm;
480 segfault 1.1
481 fabian 1.34 /* Called once a second.
482     *
483     * Note: Try to not put any Context lines in here (guppy 21Mar2000).
484 fabian 1.27 */
485 segfault 1.1 static void core_secondly()
486     {
487     static int cnt = 0;
488     int miltime;
489    
490 stdarg 1.82 call_hook(HOOK_SECONDLY); /* Will be removed later */
491 fabian 1.27 do_check_timers(&utimer); /* Secondly timers */
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 fabian 1.17 check_tcl_time(&nowtm);
573 segfault 1.1 do_check_timers(&timer);
574     if (quick_logs != 0) {
575     flushlogs();
576     check_logsize();
577     }
578     }
579    
580     static void core_hourly()
581     {
582     write_userfile(-1);
583     }
584    
585     static void event_rehash()
586     {
587     check_tcl_event("rehash");
588     }
589    
590     static void event_prerehash()
591     {
592     check_tcl_event("prerehash");
593     }
594    
595     static void event_save()
596     {
597     check_tcl_event("save");
598     }
599    
600     static void event_logfile()
601     {
602     check_tcl_event("logfile");
603     }
604    
605 fabian 1.13 static void event_resettraffic()
606     {
607     otraffic_irc += otraffic_irc_today;
608     itraffic_irc += itraffic_irc_today;
609     otraffic_bn += otraffic_bn_today;
610     itraffic_bn += itraffic_bn_today;
611     otraffic_dcc += otraffic_dcc_today;
612     itraffic_dcc += itraffic_dcc_today;
613     otraffic_unknown += otraffic_unknown_today;
614     itraffic_unknown += itraffic_unknown_today;
615     otraffic_trans += otraffic_trans_today;
616     itraffic_trans += itraffic_trans_today;
617     otraffic_irc_today = otraffic_bn_today = 0;
618     otraffic_dcc_today = otraffic_unknown_today = 0;
619     itraffic_irc_today = itraffic_bn_today = 0;
620     itraffic_dcc_today = itraffic_unknown_today = 0;
621 fabian 1.18 itraffic_trans_today = otraffic_trans_today = 0;
622 fabian 1.13 }
623    
624 guppy 1.61 static void event_loaded()
625     {
626     check_tcl_event("loaded");
627     }
628    
629 segfault 1.1 void kill_tcl();
630     extern module_entry *module_list;
631     void restart_chons();
632    
633     #ifdef STATIC
634     void check_static(char *, char *(*)());
635    
636     #include "mod/static.h"
637     #endif
638 tothwolf 1.79 int init_dcc_max(), init_userent(), init_misc(), init_net(),
639     init_modules(), init_tcl(int, char **);
640 stdarg 1.78 void botnet_init();
641 stdarg 1.83 void script_init();
642 stdarg 1.80 void init_binds();
643 fabian 1.11
644 fabian 1.44 void patch(const char *str)
645 fabian 1.11 {
646     char *p = strchr(egg_version, '+');
647    
648     if (!p)
649     p = &egg_version[strlen(egg_version)];
650     sprintf(p, "+%s", str);
651     egg_numver++;
652     sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
653     }
654 segfault 1.1
655 fabian 1.45 static inline void garbage_collect(void)
656     {
657     static u_8bit_t run_cnt = 0;
658    
659     if (run_cnt == 3)
660     garbage_collect_tclhash();
661     else
662     run_cnt++;
663     }
664    
665 segfault 1.1 int main(int argc, char **argv)
666     {
667     int xx, i;
668 guppy 1.49 char buf[520], s[25];
669 segfault 1.1 FILE *f;
670     struct sigaction sv;
671     struct chanset_t *chan;
672 stdarg 1.82 egg_timeval_t howlong;
673 segfault 1.1
674 tothwolf 1.81 #ifdef DEBUG
675 fabian 1.21 /* Make sure it can write core, if you make debug. Else it's pretty
676     * useless (dw)
677     */
678 fabian 1.15 {
679     #include <sys/resource.h>
680     struct rlimit cdlim;
681 fabian 1.21
682 fabian 1.15 cdlim.rlim_cur = RLIM_INFINITY;
683     cdlim.rlim_max = RLIM_INFINITY;
684 fabian 1.32 setrlimit(RLIMIT_CORE, &cdlim);
685 fabian 1.15 }
686     #endif
687    
688 fabian 1.27 /* Initialise context list */
689 fabian 1.32 for (i = 0; i < 16; i++)
690 fabian 1.10 Context;
691 fabian 1.32
692 ite 1.76 setlocale(LC_MESSAGES, "");
693     bindtextdomain(PACKAGE, LOCALEDIR);
694     textdomain(PACKAGE);
695    
696 segfault 1.1 #include "patch.h"
697 fabian 1.27 /* Version info! */
698 guppy 1.49 egg_snprintf(ver, sizeof ver, "eggdrop v%s", egg_version);
699 guppy 1.56 egg_snprintf(version, sizeof version, "Eggdrop v%s (C)1997 Robey Pointer (C)2001 Eggheads",
700     egg_version);
701 fabian 1.27 /* Now add on the patchlevel (for Tcl) */
702 fabian 1.2 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
703 segfault 1.1 strcat(egg_version, egg_xtra);
704     #ifdef STOP_UAC
705     {
706     int nvpair[2];
707    
708     nvpair[0] = SSIN_UACPROC;
709     nvpair[1] = UAC_NOPRINT;
710     setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
711     }
712     #endif
713 fabian 1.27
714     /* Set up error traps: */
715 segfault 1.1 sv.sa_handler = got_bus;
716     sigemptyset(&sv.sa_mask);
717     #ifdef SA_RESETHAND
718     sv.sa_flags = SA_RESETHAND;
719     #else
720     sv.sa_flags = 0;
721     #endif
722     sigaction(SIGBUS, &sv, NULL);
723     sv.sa_handler = got_segv;
724     sigaction(SIGSEGV, &sv, NULL);
725     #ifdef SA_RESETHAND
726     sv.sa_flags = 0;
727     #endif
728     sv.sa_handler = got_fpe;
729     sigaction(SIGFPE, &sv, NULL);
730     sv.sa_handler = got_term;
731     sigaction(SIGTERM, &sv, NULL);
732     sv.sa_handler = got_hup;
733     sigaction(SIGHUP, &sv, NULL);
734     sv.sa_handler = got_quit;
735     sigaction(SIGQUIT, &sv, NULL);
736     sv.sa_handler = SIG_IGN;
737     sigaction(SIGPIPE, &sv, NULL);
738     sv.sa_handler = got_ill;
739     sigaction(SIGILL, &sv, NULL);
740     sv.sa_handler = got_alarm;
741     sigaction(SIGALRM, &sv, NULL);
742 fabian 1.27
743     /* Initialize variables and stuff */
744 segfault 1.1 now = time(NULL);
745     chanset = NULL;
746 tothwolf 1.79 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
747 fabian 1.17 lastmin = nowtm.tm_min;
748 poptix 1.63 srandom(now % (getpid() + getppid()));
749 segfault 1.1 if (argc > 1)
750     for (i = 1; i < argc; i++)
751     do_arg(argv[i]);
752     printf("\n%s\n", version);
753 guppy 1.53
754     /* Don't allow eggdrop to run as root */
755     if (((int) getuid() == 0) || ((int) geteuid() == 0))
756 ite 1.76 fatal(_("ERROR: Eggdrop will not run as root!"), 0);
757 guppy 1.53
758 stdarg 1.83 script_init();
759 stdarg 1.80 init_binds();
760 segfault 1.1 init_dcc_max();
761     init_userent();
762     init_misc();
763 stdarg 1.78 botnet_init();
764 segfault 1.1 init_net();
765     init_modules();
766 stdarg 1.80
767 fabian 1.43 if (backgrd)
768     bg_prepare_split();
769 stdarg 1.80
770 fabian 1.8 init_tcl(argc, argv);
771 stdarg 1.80
772 segfault 1.1 #ifdef STATIC
773     link_statics();
774     #endif
775 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
776 segfault 1.1 strcpy(&s[11], &s[20]);
777     putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
778     chanprog();
779 guppy 1.49 if (!encrypt_pass) {
780 ite 1.73 printf(_("You have installed modules but have not selected an encryption\n\
781     module, please consult the default config file for info.\n"));
782 fabian 1.43 bg_send_quit(BG_ABORT);
783 segfault 1.1 exit(1);
784     }
785     i = 0;
786     for (chan = chanset; chan; chan = chan->next)
787     i++;
788 fabian 1.4 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
789 segfault 1.1 botnetnick, i, count_users(userlist));
790     cache_miss = 0;
791     cache_hit = 0;
792 guppy 1.49 egg_snprintf(pid_file, sizeof pid_file, "pid.%s", botnetnick);
793 fabian 1.27
794     /* Check for pre-existing eggdrop! */
795 segfault 1.1 f = fopen(pid_file, "r");
796     if (f != NULL) {
797     fgets(s, 10, f);
798     xx = atoi(s);
799 fabian 1.27 kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
800     is used */
801 segfault 1.1 if (errno != ESRCH) {
802 ite 1.73 printf(_("I detect %s already running from this directory.\n"), origbotname);
803     printf(_("If this is incorrect, erase the %s\n"), pid_file);
804 fabian 1.43 bg_send_quit(BG_ABORT);
805 segfault 1.1 exit(1);
806     }
807     }
808 fabian 1.27
809     /* Move into background? */
810 segfault 1.1 if (backgrd) {
811 fabian 1.38 #ifndef CYGWIN_HACKS
812 fabian 1.43 bg_do_split();
813 fabian 1.38 } else { /* !backgrd */
814 fabian 1.5 #endif
815 fabian 1.38 xx = getpid();
816     if (xx != 0) {
817     FILE *fp;
818    
819     /* Write pid to file */
820     unlink(pid_file);
821     fp = fopen(pid_file, "w");
822     if (fp != NULL) {
823     fprintf(fp, "%u\n", xx);
824     if (fflush(fp)) {
825     /* Let the bot live since this doesn't appear to be a botchk */
826 ite 1.73 printf(_("* Warning! Could not write %s file!\n"), pid_file);
827 fabian 1.38 fclose(fp);
828     unlink(pid_file);
829     } else
830     fclose(fp);
831 fabian 1.27 } else
832 ite 1.73 printf(_("* Warning! Could not write %s file!\n"), pid_file);
833 fabian 1.38 #ifdef CYGWIN_HACKS
834 guppy 1.68 printf("Launched into the background (pid: %d)\n\n", xx);
835 fabian 1.38 #endif
836     }
837 segfault 1.1 }
838 fabian 1.38
839     use_stderr = 0; /* Stop writing to stderr now */
840 segfault 1.1 if (backgrd) {
841 fabian 1.27 /* Ok, try to disassociate from controlling terminal (finger cross) */
842 fabian 1.5 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
843 segfault 1.1 setpgid(0, 0);
844     #endif
845 fabian 1.38 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
846 segfault 1.1 freopen("/dev/null", "r", stdin);
847     freopen("/dev/null", "w", stdout);
848     freopen("/dev/null", "w", stderr);
849 poptix 1.62 #ifdef CYGWIN_HACKS
850     FreeConsole();
851     #endif
852 segfault 1.1 }
853 fabian 1.27
854     /* Terminal emulating dcc chat */
855 fabian 1.42 if (!backgrd && term_z) {
856 segfault 1.1 int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
857    
858 drummer 1.71 dcc[n].addr[0] = '\0';
859 segfault 1.1 dcc[n].sock = STDOUT;
860     dcc[n].timeval = now;
861     dcc[n].u.chat->con_flags = conmask;
862     dcc[n].u.chat->strip_flags = STRIP_ALL;
863     dcc[n].status = STAT_ECHO;
864     strcpy(dcc[n].nick, "HQ");
865     strcpy(dcc[n].host, "llama@console");
866     dcc[n].user = get_user_by_handle(userlist, "HQ");
867 fabian 1.27 /* Make sure there's an innocuous HQ user if needed */
868 segfault 1.1 if (!dcc[n].user) {
869 fabian 1.24 userlist = adduser(userlist, "HQ", "none", "-", USER_PARTY);
870 segfault 1.1 dcc[n].user = get_user_by_handle(userlist, "HQ");
871     }
872 fabian 1.27 setsock(STDOUT, 0); /* Entry in net table */
873 segfault 1.1 dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
874     dcc_chatter(n);
875     }
876 fabian 1.27
877 segfault 1.1 then = now;
878     online_since = now;
879 fabian 1.27 autolink_cycle(NULL); /* Hurry and connect to tandem bots */
880 segfault 1.1 add_help_reference("cmds1.help");
881     add_help_reference("cmds2.help");
882     add_help_reference("core.help");
883 stdarg 1.82 howlong.sec = 1;
884     howlong.usec = 0;
885     timer_create_repeater(&howlong, (Function) core_secondly);
886 fabian 1.22 add_hook(HOOK_MINUTELY, (Function) core_minutely);
887     add_hook(HOOK_HOURLY, (Function) core_hourly);
888     add_hook(HOOK_REHASH, (Function) event_rehash);
889     add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
890     add_hook(HOOK_USERFILE, (Function) event_save);
891 guppy 1.69 add_hook(HOOK_BACKUP, (Function) backup_userfile);
892 fabian 1.22 add_hook(HOOK_DAILY, (Function) event_logfile);
893     add_hook(HOOK_DAILY, (Function) event_resettraffic);
894 guppy 1.61 add_hook(HOOK_LOADED, (Function) event_loaded);
895    
896     call_hook(HOOK_LOADED);
897 segfault 1.1
898     debug0("main: entering loop");
899     while (1) {
900     int socket_cleanup = 0;
901    
902 fabian 1.43 #if !defined(HAVE_PRE7_5_TCL)
903 fabian 1.27 /* Process a single tcl event */
904 segfault 1.1 Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
905 fabian 1.5 #endif
906 fabian 1.45
907 fabian 1.27 /* Lets move some of this here, reducing the numer of actual
908     * calls to periodic_timers
909     */
910 segfault 1.1 now = time(NULL);
911 fabian 1.27 random(); /* Woop, lets really jumble things */
912 stdarg 1.82 timer_run();
913 fabian 1.27 if (now != then) { /* Once a second */
914 stdarg 1.82 /* call_hook(HOOK_SECONDLY); */
915 segfault 1.1 then = now;
916     }
917 fabian 1.45
918     /* Only do this every so often. */
919 segfault 1.1 if (!socket_cleanup) {
920 fabian 1.45 socket_cleanup = 5;
921    
922     /* Remove dead dcc entries. */
923 fabian 1.16 dcc_remove_lost();
924 fabian 1.45
925     /* Check for server or dcc activity. */
926 segfault 1.1 dequeue_sockets();
927     } else
928     socket_cleanup--;
929 fabian 1.45
930     /* Free unused structures. */
931     garbage_collect();
932    
933 segfault 1.1 xx = sockgets(buf, &i);
934 fabian 1.27 if (xx >= 0) { /* Non-error */
935 segfault 1.1 int idx;
936    
937     for (idx = 0; idx < dcc_total; idx++)
938     if (dcc[idx].sock == xx) {
939 fabian 1.13 if (dcc[idx].type && dcc[idx].type->activity) {
940 fabian 1.27 /* Traffic stats */
941     if (dcc[idx].type->name) {
942     if (!strncmp(dcc[idx].type->name, "BOT", 3))
943     itraffic_bn_today += strlen(buf) + 1;
944     else if (!strcmp(dcc[idx].type->name, "SERVER"))
945     itraffic_irc_today += strlen(buf) + 1;
946     else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
947     itraffic_dcc_today += strlen(buf) + 1;
948     else if (!strncmp(dcc[idx].type->name, "FILES", 5))
949     itraffic_dcc_today += strlen(buf) + 1;
950     else if (!strcmp(dcc[idx].type->name, "SEND"))
951     itraffic_trans_today += strlen(buf) + 1;
952     else if (!strncmp(dcc[idx].type->name, "GET", 3))
953     itraffic_trans_today += strlen(buf) + 1;
954     else
955     itraffic_unknown_today += strlen(buf) + 1;
956     }
957 guppy 1.56 dcc[idx].type->activity(idx, buf, i);
958 fabian 1.13 } else
959 segfault 1.1 putlog(LOG_MISC, "*",
960     "!!! untrapped dcc activity: type %s, sock %d",
961     dcc[idx].type->name, dcc[idx].sock);
962     break;
963     }
964     } else if (xx == -1) { /* EOF from someone */
965     int idx;
966    
967 fabian 1.45 if (i == STDOUT && !backgrd)
968 segfault 1.1 fatal("END OF FILE ON TERMINAL", 0);
969     for (idx = 0; idx < dcc_total; idx++)
970     if (dcc[idx].sock == i) {
971     if (dcc[idx].type && dcc[idx].type->eof)
972     dcc[idx].type->eof(idx);
973     else {
974     putlog(LOG_MISC, "*",
975     "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
976 fabian 1.2 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
977     killsock(i);
978 segfault 1.1 lostdcc(idx);
979     }
980     idx = dcc_total + 1;
981     }
982     if (idx == dcc_total) {
983     putlog(LOG_MISC, "*",
984 fabian 1.2 "(@) EOF socket %d, not a dcc socket, not anything.", i);
985     close(i);
986     killsock(i);
987 segfault 1.1 }
988 fabian 1.45 } else if (xx == -2 && errno != EINTR) { /* select() error */
989 segfault 1.1 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
990     for (i = 0; i < dcc_total; i++) {
991     if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
992     putlog(LOG_MISC, "*",
993     "DCC socket %d (type %d, name '%s') expired -- pfft",
994     dcc[i].sock, dcc[i].type, dcc[i].nick);
995     killsock(dcc[i].sock);
996     lostdcc(i);
997     i--;
998     }
999     }
1000 fabian 1.45 } else if (xx == -3) {
1001 segfault 1.1 call_hook(HOOK_IDLE);
1002 fabian 1.27 socket_cleanup = 0; /* If we've been idle, cleanup & flush */
1003 segfault 1.1 }
1004 fabian 1.27
1005 segfault 1.1 if (do_restart) {
1006     if (do_restart == -2)
1007     rehash();
1008     else {
1009 fabian 1.27 /* Unload as many modules as possible */
1010 segfault 1.1 int f = 1;
1011     module_entry *p;
1012     Function x;
1013     char xx[256];
1014 guppy 1.59
1015     /* oops, I guess we should call this event before tcl is restarted */
1016 stdarg 1.77 check_tcl_event("prerestart");
1017 segfault 1.1
1018     while (f) {
1019     f = 0;
1020     for (p = module_list; p != NULL; p = p->next) {
1021     dependancy *d = dependancy_list;
1022     int ok = 1;
1023    
1024     while (ok && d) {
1025     if (d->needed == p)
1026     ok = 0;
1027     d = d->next;
1028     }
1029     if (ok) {
1030     strcpy(xx, p->name);
1031     if (module_unload(xx, origbotname) == NULL) {
1032     f = 1;
1033     break;
1034     }
1035     }
1036     }
1037     }
1038     p = module_list;
1039     if (p && p->next && p->next->next)
1040 fabian 1.45 /* Should be only 2 modules now - blowfish (or some other
1041     encryption module) and eggdrop. */
1042 ite 1.73 putlog(LOG_MISC, "*", _("Stagnant module; there WILL be memory leaks!"));
1043 segfault 1.1 flushlogs();
1044     kill_tcl();
1045 fabian 1.8 init_tcl(argc, argv);
1046 fabian 1.30 /* We expect the encryption module as the current module pointed
1047     * to by `module_list'.
1048     */
1049 segfault 1.1 x = p->funcs[MODCALL_START];
1050 fabian 1.30 /* `NULL' indicates that we just recently restarted. The module
1051     * is expected to re-initialise as needed.
1052     */
1053     x(NULL);
1054 segfault 1.1 rehash();
1055     restart_chons();
1056 guppy 1.61 call_hook(HOOK_LOADED);
1057 segfault 1.1 }
1058     do_restart = 0;
1059     }
1060     }
1061     }

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