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

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Revision 1.156 - (show annotations) (download) (as text)
Tue Dec 16 21:45:35 2003 UTC (15 years, 7 months ago) by wcc
Branch: MAIN
Changes since 1.155: +10 -15 lines
File MIME type: text/x-chdr
* src/ cleanups.

1 /* main.c
2 *
3 * Copyright (C) 1997 Robey Pointer
4 * Copyright (C) 1999, 2000, 2001, 2002, 2003, 2004 Eggheads Development Team
5 *
6 * This program is free software; you can redistribute it and/or
7 * modify it under the terms of the GNU General Public License
8 * as published by the Free Software Foundation; either version 2
9 * of the License, or (at your option) any later version.
10 *
11 * This program is distributed in the hope that it will be useful,
12 * but WITHOUT ANY WARRANTY; without even the implied warranty of
13 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
14 * GNU General Public License for more details.
15 *
16 * You should have received a copy of the GNU General Public License
17 * along with this program; if not, write to the Free Software
18 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA 02111-1307, USA.
19 */
20
21 #ifndef lint
22 static const char rcsid[] = "$Id: main.c,v 1.155 2003/12/16 03:26:42 wcc Exp $";
23 #endif
24
25 #if HAVE_CONFIG_H
26 # include <config.h>
27 #endif
28
29 #include <ctype.h>
30 #include <unistd.h>
31 #include <fcntl.h>
32 #include <eggdrop/eggdrop.h>
33 #include "lib/compat/compat.h"
34 #include "main.h"
35 #include "debug.h"
36 #include "core_config.h"
37 #include "bg.h"
38 #include "core_binds.h"
39 #include "logfile.h"
40
41 #ifdef TIME_WITH_SYS_TIME
42 # include <sys/time.h>
43 # include <time.h>
44 #else
45 # ifdef HAVE_SYS_TIME_H
46 # include <sys/time.h>
47 # else
48 # include <time.h>
49 # endif
50 #endif
51
52 #include <sys/stat.h>
53 #include <errno.h>
54 #include <signal.h>
55 #include <netdb.h>
56 #include <setjmp.h>
57 #include <locale.h>
58 #include <ctype.h>
59 #include <ltdl.h>
60
61 #ifdef STOP_UAC /* OSF/1 complains a lot */
62 # include <sys/sysinfo.h>
63 # define UAC_NOPRINT 0x00000001 /* Don't report unaligned fixups */
64 #endif
65
66 #ifdef CYGWIN_HACKS
67 # include <windows.h>
68 #endif
69
70 #ifndef _POSIX_SOURCE
71 # define _POSIX_SOURCE 1 /* Solaris needs this */
72 #endif
73
74 eggdrop_t *egg = NULL; /* Eggdrop's context */
75
76 int backgrd = 1; /* Run in the background? */
77 int con_chan = 0; /* Foreground: constantly display channel stats? */
78 int term_z = 0; /* Foreground: use the terminal as a partyline? */
79 int make_userfile = 0; /* Start bot in make-userfile mode? */
80
81 char configfile[121] = "config.xml"; /* Name of the config file */
82 char helpdir[121] = "help/"; /* Directory of help files (if used) */
83 char textdir[121] = "text/"; /* Directory for text files that get dumped */
84 char pid_file[120]; /* Name of Eggdrop's pid file */
85
86 time_t online_since; /* Time the bot was started */
87 time_t now; /* Current time */
88 egg_timeval_t egg_timeval_now; /* Current time in seconds and microseconds. */
89
90 int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
91
92 char version[81];
93
94 static int lastmin = 99;
95 static struct tm nowtm;
96
97 void core_party_init();
98 void core_config_init();
99
100 void fatal(const char *s, int recoverable)
101 {
102 putlog(LOG_MISC, "*", "Fatal: %s", s);
103 flushlogs();
104 unlink(pid_file);
105 if (!recoverable) {
106 bg_send_quit(BG_ABORT);
107 exit(1);
108 }
109 }
110
111 static void got_bus(int z)
112 {
113 fatal("BUS ERROR.", 1);
114 #ifdef SA_RESETHAND
115 kill(getpid(), SIGBUS);
116 #else
117 bg_send_quit(BG_ABORT);
118 exit(1);
119 #endif
120 }
121
122 static void got_segv(int z)
123 {
124 fatal("SEGMENT VIOLATION.", 1);
125 #ifdef SA_RESETHAND
126 kill(getpid(), SIGSEGV);
127 #else
128 bg_send_quit(BG_ABORT);
129 exit(1);
130 #endif
131 }
132
133 static void got_fpe(int z)
134 {
135 fatal("FLOATING POINT ERROR.", 0);
136 }
137
138 static void got_term(int z)
139 {
140 eggdrop_event("sigterm");
141 if (core_config.die_on_sigterm) {
142 putlog(LOG_MISC, "*", "Saving user file...");
143 user_save(core_config.userfile);
144 putlog(LOG_MISC, "*", "Saving config file...");
145 core_config_save();
146 putlog(LOG_MISC, "*", "Bot shutting down: received TERMINATE signal.");
147 flushlogs();
148 unlink(pid_file);
149 exit(0);
150 }
151 else putlog(LOG_MISC, "*", "Received TERMINATE signal (ignoring).");
152 }
153
154 static void got_quit(int z)
155 {
156 eggdrop_event("sigquit");
157 putlog(LOG_MISC, "*", "Received QUIT signal (ignoring).");
158 return;
159 }
160
161 static void got_hup(int z)
162 {
163 eggdrop_event("sighup");
164 putlog(LOG_MISC, "*", "Received HUP signal (ignoring).");
165 return;
166 }
167
168 static void got_ill(int z)
169 {
170 eggdrop_event("sigill");
171 putlog(LOG_MISC, "*", "Received ILL signal (ignoring).");
172 }
173
174
175 static void print_version(void)
176 {
177 printf("%s\n", version);
178 }
179
180 static void print_help(const char **argv)
181 {
182 print_version();
183 printf("\nUsage: %s [OPTIONS]... [FILE]\n", argv[0]);
184 printf(_("\n\
185 -h, --help Print help and exit\n\
186 -v, --version Print version and exit\n\
187 -n, --foreground Don't go into the background (default=off)\n\
188 -c --channel-stats (with -n) Display channel stats every 10 seconds\n\
189 -t --terminal (with -n) Use terminal to simulate dcc-chat\n\
190 -m --make-userfile Userfile creation mode\n\
191 FILE optional config filename (default 'config.xml')\n"));
192 printf("\n");
193 }
194
195 static void do_args(int argc, char *const *argv)
196 {
197 int c;
198
199 optarg = 0;
200 optind = 1;
201 opterr = 1;
202 optopt = '?';
203
204 while (1) {
205 int option_index = 0;
206
207 static struct option long_options[] = {
208 {"help", 0, NULL, 'h'},
209 {"version", 0, NULL, 'v'},
210 {"load-module", 1, NULL, 'p'},
211 {"foreground", 0, NULL, 'n'},
212 {"channel-stats", 0, NULL, 'c'},
213 {"terminal", 0, NULL, 't'},
214 {"make-userfile", 0, NULL, 'm'},
215 {NULL, 0, NULL, 0}
216 };
217
218 c = getopt_long(argc, argv, "hvp:nctm", long_options, &option_index);
219 if (c == -1) break;
220 switch (c) {
221 case 'n':
222 backgrd = 0;
223 break;
224 case 'c':
225 con_chan = 1;
226 term_z = 0;
227 break;
228 case 't':
229 con_chan = 0;
230 term_z = 1;
231 break;
232 case 'm':
233 make_userfile = 1;
234 break;
235 case 'v':
236 print_version();
237 bg_send_quit(BG_ABORT);
238 exit(0);
239 break; /* this should never be reached */
240 case 'h':
241 print_help(argv);
242 bg_send_quit(BG_ABORT);
243 exit(0);
244 break; /* this should never be reached */
245 case 0: /* Long option with no short option */
246 case '?': /* Invalid option. */
247 /* getopt_long() already printed an error message. */
248 bg_send_quit(BG_ABORT);
249 exit(1);
250 default: /* bug: option not considered. */
251 fprintf(stderr, "%s: option unknown: %c\n", argv[0], c);
252 bg_send_quit(BG_ABORT);
253 exit(1);
254 break; /* this should never be reached */
255 }
256 }
257 if (optind < argc) strlcpy(configfile, argv[optind], sizeof configfile);
258 }
259
260 /* Called once a second.
261 */
262 static int core_secondly()
263 {
264 static int cnt = 0;
265 int miltime;
266
267 check_bind_secondly();
268 cnt++;
269 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
270 if (nowtm.tm_min != lastmin) {
271 int i = 0;
272
273 /* Once a minute */
274 lastmin = (lastmin + 1) % 60;
275 eggdrop_event("minutely");
276 check_bind_time(&nowtm);
277 /* In case for some reason more than 1 min has passed: */
278 while (nowtm.tm_min != lastmin) {
279 /* Timer drift, dammit */
280 putlog(LOG_DEBUG, "*", "timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
281 i++;
282 lastmin = (lastmin + 1) % 60;
283 eggdrop_event("minutely");
284 }
285 if (i > 1) putlog(LOG_MISC, "*", "Warning: timer drift (%d minutes).", i);
286
287 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
288 if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 minutes */
289 eggdrop_event("5minutely");
290 if (!miltime) { /* At midnight */
291 char s[25];
292
293 strlcpy(s, ctime(&now), sizeof s);
294 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
295 eggdrop_event("backup");
296 eggdrop_event("daily");
297 }
298 }
299 }
300 return(0);
301 }
302
303
304 int file_check(const char *filename)
305 {
306 struct stat sbuf = {0};
307 int r;
308
309 r = stat(filename, &sbuf);
310 if (r) return(-1);
311 errno = 0;
312 if (sbuf.st_mode & (S_IRGRP|S_IWGRP|S_IROTH|S_IWOTH)) return(-1);
313 return(0);
314 }
315
316 int main(int argc, char **argv)
317 {
318 int xx, i, timeout;
319 char s[25], *modname, *scriptname;
320 FILE *f;
321 struct sigaction sv;
322 egg_timeval_t howlong;
323 void *config_root, *entry;
324
325 #ifdef DEBUG
326 {
327 # include <sys/resource.h>
328 struct rlimit cdlim;
329
330 cdlim.rlim_cur = RLIM_INFINITY;
331 cdlim.rlim_max = RLIM_INFINITY;
332 setrlimit(RLIMIT_CORE, &cdlim);
333 }
334 #endif
335
336 #ifdef ENABLE_NLS
337 setlocale(LC_MESSAGES, "");
338 bindtextdomain(PACKAGE, LOCALEDIR);
339 textdomain(PACKAGE);
340 #endif
341
342 /* Initialize ltdl. */
343 LTDL_SET_PRELOADED_SYMBOLS();
344 if (lt_dlinit()) {
345 printf("Fatal error initializing ltdl: %s\n", lt_dlerror());
346 return(-1);
347 }
348
349 snprintf(version, sizeof version, "Eggdrop v%s (C) 1997 Robey Pointer (C) 2004 Eggheads Development Team", VERSION);
350
351 #ifdef STOP_UAC
352 {
353 int nvpair[2];
354
355 nvpair[0] = SSIN_UACPROC;
356 nvpair[1] = UAC_NOPRINT;
357 setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
358 }
359 #endif
360
361 sv.sa_handler = got_bus;
362 sigemptyset(&sv.sa_mask);
363 #ifdef SA_RESETHAND
364 sv.sa_flags = SA_RESETHAND;
365 #else
366 sv.sa_flags = 0;
367 #endif
368 sigaction(SIGBUS, &sv, NULL);
369
370 sv.sa_handler = got_segv;
371 sigaction(SIGSEGV, &sv, NULL);
372 #ifdef SA_RESETHAND
373 sv.sa_flags = 0;
374 #endif
375
376 sv.sa_handler = got_fpe;
377 sigaction(SIGFPE, &sv, NULL);
378
379 sv.sa_handler = got_term;
380 sigaction(SIGTERM, &sv, NULL);
381
382 sv.sa_handler = got_hup;
383 sigaction(SIGHUP, &sv, NULL);
384
385 sv.sa_handler = got_quit;
386 sigaction(SIGQUIT, &sv, NULL);
387
388 sv.sa_handler = SIG_IGN;
389 sigaction(SIGPIPE, &sv, NULL);
390
391 sv.sa_handler = got_ill;
392 sigaction(SIGILL, &sv, NULL);
393
394 timer_update_now(&egg_timeval_now);
395 now = egg_timeval_now.sec;
396 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
397 lastmin = nowtm.tm_min;
398
399 srandom(now % (getpid() + getppid()));
400
401 do_args(argc, argv);
402 printf("\n%s\n", version);
403 printf("WARNING: Do NOT run this DEVELOPMENT version for any purpose other than testing.\n\n");
404
405 if (((int) getuid() == 0) || ((int) geteuid() == 0)) fatal(_("Eggdrop will not run as root!"), 0);
406
407 if (file_check(configfile)) {
408 if (errno) perror(configfile);
409 else fprintf(stderr, "ERROR\n\nCheck file permissions on your config file!\nMake sure other groups and users cannot read/write it.\n");
410 exit(-1);
411 }
412
413 egg = eggdrop_new();
414 eggdrop_init();
415 core_config_init(configfile);
416 logfile_init();
417 if (core_config.userfile) user_load(core_config.userfile);
418 core_party_init();
419 core_binds_init();
420
421 if (make_userfile) {
422 user_t *owner;
423 char handle[512], password[12];
424 int len;
425
426 if (user_count() != 0) {
427 printf("\n\n\nYou are trying to create a new userfile, but the old one still exists (%s)!\n\nPlease remove the userfile, or do not pass the -m option.\n\n", core_config.userfile);
428 exit(1);
429 }
430
431 printf("\n\n\nHello! I see you are creating a new userfile.\n\n");
432 printf("Let's create the owner account.\n\n");
433 do {
434 printf("Enter the owner handle: ");
435 fflush(stdout);
436 fgets(handle, sizeof(handle), stdin);
437 for (len = 0; handle[len]; len++) {
438 if (!ispunct(handle[len]) && !isalnum(handle[len])) break;
439 }
440 if (len == 0) printf("Come on, enter a real handle.\n\n");
441 } while (len <= 0);
442 handle[len] = 0;
443 owner = user_new(handle);
444 if (!owner) {
445 printf("Failed to create user record! Out of memory?\n\n");
446 exit(1);
447 }
448 user_rand_pass(password, sizeof(password));
449 user_set_pass(owner, password);
450 user_set_flag_str(owner, NULL, "+n");
451 printf("Your owner handle is '%s' and your password is '%s' (without the quotes).\n\n", handle, password);
452 memset(password, 0, sizeof(password));
453 str_redup(&core_config.owner, handle);
454 core_config_save();
455 user_save(core_config.userfile);
456 }
457
458 if (backgrd) bg_prepare_split();
459
460 strlcpy(s, ctime(&now), sizeof s);
461 strcpy(&s[11], &s[20]);
462 putlog(LOG_ALL, "*", "Loading Eggdrop %s (%s)", VERSION, s);
463 snprintf(pid_file, sizeof pid_file, "pid.%s", core_config.botname);
464
465 f = fopen(pid_file, "r");
466 if (f != NULL) {
467 fgets(s, 10, f);
468 xx = atoi(s);
469 kill(xx, SIGCHLD); /* Meaningless kill to determine if pid is used */
470 if (errno != ESRCH) {
471 printf(_("I detect %s already running from this directory.\n"), core_config.botname);
472 printf(_("If this is incorrect, please erase '%s'.\n"), pid_file);
473 bg_send_quit(BG_ABORT);
474 exit(1);
475 }
476 }
477
478 /* Put the module directory in the ltdl search path. */
479 if (core_config.module_path) module_add_dir(core_config.module_path);
480
481 /* Scan the autoload section of config. */
482 config_root = config_get_root("eggdrop");
483 for (i = 0; (entry = config_exists(config_root, "eggdrop", 0, "autoload", 0, "module", i, NULL)); i++) {
484 modname = NULL;
485 config_get_str(&modname, entry, NULL);
486 module_load(modname);
487 }
488 for (i = 0; (entry = config_exists(config_root, "eggdrop", 0, "autoload", 0, "script", i, NULL)); i++) {
489 scriptname = NULL;
490 config_get_str(&scriptname, entry, NULL);
491 script_load(scriptname);
492 }
493
494 if (backgrd) { /* Move into background? */
495 #ifndef CYGWIN_HACKS
496 bg_do_split();
497 }
498 else {
499 #endif
500 xx = getpid();
501 if (xx != 0) {
502 FILE *fp;
503
504 unlink(pid_file);
505 fp = fopen(pid_file, "w");
506 if (fp != NULL) {
507 fprintf(fp, "%u\n", xx);
508 if (fflush(fp)) {
509 /* Let the bot live since this doesn't appear to be a botchk */
510 printf("WARNING: Could not write pid file '%s'.\n", pid_file);
511 fclose(fp);
512 unlink(pid_file);
513 }
514 else fclose(fp);
515 }
516 else printf("WARNING: Could not write pid file '%s'.\n", pid_file);
517 #ifdef CYGWIN_HACKS
518 printf("Launched into the background (pid: %d)\n\n", xx);
519 #endif
520 }
521 }
522
523 use_stderr = 0; /* Stop writing to stderr now */
524
525 if (backgrd) {
526 /* Try to disassociate from controlling terminal (finger cross) */
527 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
528 setpgid(0, 0);
529 #endif
530 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
531 freopen("/dev/null", "r", stdin);
532 freopen("/dev/null", "w", stdout);
533 freopen("/dev/null", "w", stderr);
534 #ifdef CYGWIN_HACKS
535 FreeConsole();
536 #endif
537 }
538
539 online_since = now;
540 howlong.sec = 1;
541 howlong.usec = 0;
542 timer_create_repeater(&howlong, "main loop", core_secondly);
543
544 putlog(LOG_DEBUG, "*", "Entering main loop.");
545 while (1) {
546 timer_update_now(&egg_timeval_now);
547 now = egg_timeval_now.sec;
548 random(); /* Woop, lets really jumble things */
549 timer_run();
550 if (timer_get_shortest(&howlong)) timeout = 1000;
551 else timeout = howlong.sec * 1000 + howlong.usec / 1000;
552 sockbuf_update_all(timeout);
553 garbage_run();
554 }
555 }

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