/[cvs]/eggdrop1.9/src/main.c
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Revision 1.79 - (hide annotations) (download) (as text)
Wed Oct 10 10:44:04 2001 UTC (17 years, 10 months ago) by tothwolf
Branch: MAIN
Changes since 1.78: +7 -26 lines
File MIME type: text/x-chdr
all expmem functions and support removed
all memory status/debugging code removed
all #ifdef DEBUG_MEM code removed

nmalloc macro/n_malloc function removed, use malloc() now
mod_malloc function removed
my_strdup function removed, use malloc_strcpy macro now
channel_malloc removed, use malloc_memset macro now
n_malloc_null function removed, use malloc_memset macro now
user_malloc macro/_user_malloc function removed, use malloc() now

nrealloc macro/n_realloc function removed, use realloc() now
mod_realloc function removed

nfree macro/n_free function removed, use free() now
mod_free function removed
my_free macro removed, use free_null macro now
Tcl_Free compat macro now uses free() instead of removed n_free function

malloc->strcpy now uses malloc_strcpy macro
free(ptr);ptr=NULL; now uses free_null macro
malloc->bzero now uses malloc_memset macro
get_data_ptr macro/_get_data_ptr function removed, use malloc_memset macro now

compat memcpy removed
compat memset removed
egg_memcpy/my_memcpy misuse/mess changed to memcpy
egg_bzero/bzero macro removed, use memset() now

many uninitialized pointers now default to NULL

match.c is now compiled on it's own instead of being included into tclhash.c
match.c cleanup, removed broken/incomplete ircII compat code
wild_match macro removed, _wild_match function renamed to wild_match
wild_match_per function no longer declared static
added prototypes for wild_match and wild_match_per functions

Major function/macro changes:
  nmalloc -> malloc()
  nrealloc -> realloc()
  nfree -> free()

Bugs found and fixed during audit:
  buffer overflow in adduser()

Bugs fixed when code was removed:
  typo in filedb3.c: EBUG_MEM -> DEBUG_MEM
  extra egg_bzero call from filesys.c

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 tothwolf 1.79 * $Id: main.c,v 1.78 2001/09/28 03:15:34 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 fabian 1.38
57 drummer 1.71 #include "adns/adns.h"
58    
59 poptix 1.62 #ifdef CYGWIN_HACKS
60     #include <windows.h>
61     #endif
62    
63 segfault 1.1 #ifndef _POSIX_SOURCE
64 fabian 1.27 /* Solaris needs this */
65 segfault 1.1 #define _POSIX_SOURCE 1
66     #endif
67    
68 fabian 1.27 extern char origbotname[], userfile[], botnetnick[];
69     extern int dcc_total, conmask, cache_hit, cache_miss,
70     max_logs, quick_logs;
71     extern struct dcc_t *dcc;
72     extern struct userrec *userlist;
73     extern struct chanset_t *chanset;
74     extern log_t *logs;
75     extern Tcl_Interp *interp;
76     extern tcl_timer_t *timer,
77     *utimer;
78     extern jmp_buf alarmret;
79    
80 segfault 1.1
81 guppy 1.56 /*
82 segfault 1.1 * Please use the PATCH macro instead of directly altering the version
83     * string from now on (it makes it much easier to maintain patches).
84     * Also please read the README file regarding your rights to distribute
85     * modified versions of this bot.
86     */
87    
88 ite 1.76 char egg_version[1024] = VERSION;
89     int egg_numver = VERSION_NUM;
90 segfault 1.1
91 fabian 1.27 char notify_new[121] = ""; /* Person to send a note to for new users */
92     int default_flags = 0; /* Default user flags and */
93     int default_uflags = 0; /* Default userdefinied flags for people
94     who say 'hello' or for .adduser */
95    
96     int backgrd = 1; /* Run in the background? */
97     int con_chan = 0; /* Foreground: constantly display channel
98     stats? */
99     int term_z = 0; /* Foreground: use the terminal as a party
100     line? */
101     char configfile[121] = "eggdrop.conf"; /* Name of the config file */
102     char helpdir[121]; /* Directory of help files (if used) */
103     char textdir[121] = ""; /* Directory for text files that get dumped */
104     int keep_all_logs = 0; /* Never erase logfiles, no matter how old
105     they are? */
106 fabian 1.40 char logfile_suffix[21] = ".%d%b%Y"; /* Format of logfile suffix. */
107 fabian 1.27 time_t online_since; /* Unix-time that the bot loaded up */
108     int make_userfile = 0; /* Using bot in make-userfile mode? (first
109     user to 'hello' becomes master) */
110     char owner[121] = ""; /* Permanent owner(s) of the bot */
111 guppy 1.49 char pid_file[HANDLEN + 5]; /* Name of the file for the pid to be
112 fabian 1.27 stored in */
113     int save_users_at = 0; /* How many minutes past the hour to
114     save the userfile? */
115     int notify_users_at = 0; /* How many minutes past the hour to
116     notify users of notes? */
117     int switch_logfiles_at = 300; /* When (military time) to switch logfiles */
118     char version[81]; /* Version info (long form) */
119     char ver[41]; /* Version info (short form) */
120     char egg_xtra[2048]; /* Patch info */
121     int use_stderr = 1; /* Send stuff to stderr instead of logfiles? */
122     int do_restart = 0; /* .restart has been called, restart asap */
123     int die_on_sighup = 0; /* die if bot receives SIGHUP */
124 guppy 1.52 int die_on_sigterm = 1; /* die if bot receives SIGTERM */
125 fabian 1.27 int resolve_timeout = 15; /* hostname/address lookup timeout */
126 guppy 1.72 char quit_msg[1024]; /* quit message */
127 fabian 1.27 time_t now; /* duh, now :) */
128    
129     /* Traffic stats
130     */
131 fabian 1.33 unsigned long otraffic_irc = 0;
132     unsigned long otraffic_irc_today = 0;
133     unsigned long otraffic_bn = 0;
134     unsigned long otraffic_bn_today = 0;
135     unsigned long otraffic_dcc = 0;
136     unsigned long otraffic_dcc_today = 0;
137     unsigned long otraffic_filesys = 0;
138     unsigned long otraffic_filesys_today = 0;
139     unsigned long otraffic_trans = 0;
140     unsigned long otraffic_trans_today = 0;
141     unsigned long otraffic_unknown = 0;
142     unsigned long otraffic_unknown_today = 0;
143     unsigned long itraffic_irc = 0;
144     unsigned long itraffic_irc_today = 0;
145     unsigned long itraffic_bn = 0;
146     unsigned long itraffic_bn_today = 0;
147     unsigned long itraffic_dcc = 0;
148     unsigned long itraffic_dcc_today = 0;
149     unsigned long itraffic_trans = 0;
150     unsigned long itraffic_trans_today = 0;
151     unsigned long itraffic_unknown = 0;
152     unsigned long itraffic_unknown_today = 0;
153 segfault 1.1
154 fabian 1.11 #ifdef DEBUG_CONTEXT
155 fabian 1.27 /* Context storage for fatal crashes */
156     char cx_file[16][30];
157     char cx_note[16][256];
158     int cx_line[16];
159     int cx_ptr = 0;
160 fabian 1.10 #endif
161 segfault 1.1
162 fabian 1.27
163 fabian 1.44 void fatal(const char *s, int recoverable)
164 segfault 1.1 {
165     int i;
166    
167     putlog(LOG_MISC, "*", "* %s", s);
168     flushlogs();
169     for (i = 0; i < dcc_total; i++)
170 fabian 1.19 if (dcc[i].sock >= 0)
171 fabian 1.15 killsock(dcc[i].sock);
172 segfault 1.1 unlink(pid_file);
173 fabian 1.43 if (!recoverable) {
174     bg_send_quit(BG_ABORT);
175 segfault 1.1 exit(1);
176 fabian 1.43 }
177 segfault 1.1 }
178    
179     static void check_expired_dcc()
180     {
181     int i;
182    
183     for (i = 0; i < dcc_total; i++)
184     if (dcc[i].type && dcc[i].type->timeout_val &&
185     ((now - dcc[i].timeval) > *(dcc[i].type->timeout_val))) {
186     if (dcc[i].type->timeout)
187     dcc[i].type->timeout(i);
188     else if (dcc[i].type->eof)
189     dcc[i].type->eof(i);
190     else
191     continue;
192 fabian 1.27 /* Only timeout 1 socket per cycle, too risky for more */
193 segfault 1.1 return;
194     }
195     }
196    
197 fabian 1.11 #ifdef DEBUG_CONTEXT
198 fabian 1.27 static int nested_debug = 0;
199 segfault 1.1
200     void write_debug()
201     {
202     int x;
203 guppy 1.49 char s[25];
204 segfault 1.1 int y;
205    
206     if (nested_debug) {
207 fabian 1.27 /* Yoicks, if we have this there's serious trouble!
208     * All of these are pretty reliable, so we'll try these.
209 guppy 1.56 *
210 fabian 1.27 * NOTE: dont try and display context-notes in here, it's
211     * _not_ safe <cybah>
212     */
213 segfault 1.1 x = creat("DEBUG.DEBUG", 0644);
214     setsock(x, SOCK_NONSOCK);
215     if (x >= 0) {
216 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
217 guppy 1.57 dprintf(-x, "Debug (%s) written %s\n", ver, s);
218 guppy 1.60 dprintf(-x, "Please report problem to bugs@eggheads.org\n");
219 guppy 1.57 dprintf(-x, "after a visit to http://www.eggheads.org/bugzilla/\n");
220 segfault 1.1 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
221     dprintf(-x, "Context: ");
222     cx_ptr = cx_ptr & 15;
223     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
224     dprintf(-x, "%s/%d,\n ", cx_file[y], cx_line[y]);
225     dprintf(-x, "%s/%d\n\n", cx_file[y], cx_line[y]);
226     killsock(x);
227     close(x);
228     }
229 fabian 1.43 bg_send_quit(BG_ABORT);
230 fabian 1.27 exit(1); /* Dont even try & tell people about, that may
231     have caused the fault last time. */
232 segfault 1.1 } else
233     nested_debug = 1;
234     putlog(LOG_MISC, "*", "* Last context: %s/%d [%s]", cx_file[cx_ptr],
235     cx_line[cx_ptr], cx_note[cx_ptr][0] ? cx_note[cx_ptr] : "");
236 fabian 1.2 putlog(LOG_MISC, "*", "* Please REPORT this BUG!");
237     putlog(LOG_MISC, "*", "* Check doc/BUG-REPORT on how to do so.");
238 fabian 1.9 x = creat("DEBUG", 0644);
239 segfault 1.1 setsock(x, SOCK_NONSOCK);
240     if (x < 0) {
241     putlog(LOG_MISC, "*", "* Failed to write DEBUG");
242     } else {
243 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
244 guppy 1.57 dprintf(-x, "Debug (%s) written %s\n", ver, s);
245 segfault 1.1 dprintf(-x, "Full Patch List: %s\n", egg_xtra);
246     #ifdef STATIC
247     dprintf(-x, "STATICALLY LINKED\n");
248     #endif
249 guppy 1.51
250     /* info library */
251 poptix 1.65 dprintf(-x, "TCL library: %s\n",
252 guppy 1.51 ((interp) && (Tcl_Eval(interp, "info library") == TCL_OK)) ?
253     interp->result : "*unknown*");
254    
255 guppy 1.74 /* info tclversion/patchlevel */
256 poptix 1.65 dprintf(-x, "TCL version: %s (header version %s)\n",
257 guppy 1.51 ((interp) && (Tcl_Eval(interp, "info patchlevel") == TCL_OK)) ?
258 guppy 1.74 interp->result : (Tcl_Eval(interp, "info tclversion") == TCL_OK) ?
259     interp->result : "*unknown*", TCL_PATCH_LEVEL ? TCL_PATCH_LEVEL :
260     "*unknown*");
261 poptix 1.65
262     #if HAVE_TCL_THREADS
263     dprintf(-x, "TCL is threaded\n");
264     #endif
265 guppy 1.51
266     #ifdef CCFLAGS
267 segfault 1.1 dprintf(-x, "Compile flags: %s\n", CCFLAGS);
268 guppy 1.51 #endif
269     #ifdef LDFLAGS
270 guppy 1.64 dprintf(-x, "Link flags: %s\n", LDFLAGS);
271 guppy 1.51 #endif
272     #ifdef STRIPFLAGS
273 guppy 1.64 dprintf(-x, "Strip flags: %s\n", STRIPFLAGS);
274 guppy 1.51 #endif
275    
276 segfault 1.1 dprintf(-x, "Context: ");
277     cx_ptr = cx_ptr & 15;
278     for (y = ((cx_ptr + 1) & 15); y != cx_ptr; y = ((y + 1) & 15))
279     dprintf(-x, "%s/%d, [%s]\n ", cx_file[y], cx_line[y],
280     (cx_note[y][0]) ? cx_note[y] : "");
281     dprintf(-x, "%s/%d [%s]\n\n", cx_file[cx_ptr], cx_line[cx_ptr],
282     (cx_note[cx_ptr][0]) ? cx_note[cx_ptr] : "");
283     tell_dcc(-x);
284     dprintf(-x, "\n");
285 tothwolf 1.79 tell_netdebug(-x);
286 segfault 1.1 killsock(x);
287     close(x);
288     putlog(LOG_MISC, "*", "* Wrote DEBUG");
289     }
290     }
291 fabian 1.10 #endif
292 fabian 1.2
293 segfault 1.1 static void got_bus(int z)
294     {
295 fabian 1.11 #ifdef DEBUG_CONTEXT
296 segfault 1.1 write_debug();
297 fabian 1.10 #endif
298 segfault 1.1 fatal("BUS ERROR -- CRASHING!", 1);
299     #ifdef SA_RESETHAND
300     kill(getpid(), SIGBUS);
301     #else
302 fabian 1.43 bg_send_quit(BG_ABORT);
303 segfault 1.1 exit(1);
304     #endif
305     }
306    
307     static void got_segv(int z)
308     {
309 fabian 1.11 #ifdef DEBUG_CONTEXT
310 segfault 1.1 write_debug();
311 fabian 1.10 #endif
312 segfault 1.1 fatal("SEGMENT VIOLATION -- CRASHING!", 1);
313     #ifdef SA_RESETHAND
314     kill(getpid(), SIGSEGV);
315     #else
316 fabian 1.43 bg_send_quit(BG_ABORT);
317 segfault 1.1 exit(1);
318     #endif
319     }
320    
321     static void got_fpe(int z)
322     {
323 fabian 1.11 #ifdef DEBUG_CONTEXT
324 segfault 1.1 write_debug();
325 fabian 1.10 #endif
326 segfault 1.1 fatal("FLOATING POINT ERROR -- CRASHING!", 0);
327     }
328    
329     static void got_term(int z)
330     {
331     write_userfile(-1);
332     check_tcl_event("sigterm");
333     if (die_on_sigterm) {
334     botnet_send_chat(-1, botnetnick, "ACK, I've been terminated!");
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 fabian 1.11 #ifdef DEBUG_ASSERT
417 fabian 1.27 /* Called from the Assert macro.
418     */
419 fabian 1.44 void eggAssert(const char *file, int line, const char *module)
420 fabian 1.10 {
421 fabian 1.11 #ifdef DEBUG_CONTEXT
422 fabian 1.44 write_debug();
423 fabian 1.11 #endif
424 fabian 1.44 if (!module)
425     putlog(LOG_MISC, "*", "* In file %s, line %u", file, line);
426     else
427     putlog(LOG_MISC, "*", "* In file %s:%s, line %u", module, file, line);
428     fatal("ASSERT FAILED -- CRASHING!", 1);
429 fabian 1.10 }
430     #endif
431    
432 segfault 1.1 static void do_arg(char *s)
433     {
434 guppy 1.49 char x[1024], *z = x;
435 segfault 1.1 int i;
436    
437     if (s[0] == '-')
438     for (i = 1; i < strlen(s); i++) {
439 guppy 1.49 switch (s[i]) {
440     case 'n':
441 segfault 1.1 backgrd = 0;
442 guppy 1.49 break;
443     case 'c':
444 segfault 1.1 con_chan = 1;
445     term_z = 0;
446 guppy 1.49 break;
447     case 't':
448 segfault 1.1 con_chan = 0;
449     term_z = 1;
450 guppy 1.49 break;
451     case 'm':
452 segfault 1.1 make_userfile = 1;
453 guppy 1.49 break;
454     case 'v':
455     strncpyz(x, egg_version, sizeof x);
456 segfault 1.1 newsplit(&z);
457     newsplit(&z);
458     printf("%s\n", version);
459     if (z[0])
460     printf(" (patches: %s)\n", z);
461 fabian 1.43 bg_send_quit(BG_ABORT);
462 segfault 1.1 exit(0);
463 guppy 1.49 break; /* this should never be reached */
464     case 'h':
465 segfault 1.1 printf("\n%s\n\n", version);
466 ite 1.73 printf(_("Command line arguments:\n\
467     -h help\n\
468     -v print version and exit\n\
469     -n don't go into the background\n\
470     -c (with -n) display channel stats every 10 seconds\n\
471     -t (with -n) use terminal to simulate dcc-chat\n\
472     -m userfile creation mode\n\
473     optional config filename (default 'eggdrop.conf')\n"));
474 segfault 1.1 printf("\n");
475 fabian 1.43 bg_send_quit(BG_ABORT);
476 segfault 1.1 exit(0);
477 guppy 1.49 break; /* this should never be reached */
478 segfault 1.1 }
479     } else
480 guppy 1.49 strncpyz(configfile, s, sizeof configfile);
481 segfault 1.1 }
482    
483 fabian 1.44 void backup_userfile(void)
484 segfault 1.1 {
485 guppy 1.49 char s[125];
486 segfault 1.1
487 ite 1.73 putlog(LOG_MISC, "*", _("Backing up user file..."));
488 guppy 1.49 egg_snprintf(s, sizeof s, "%s~bak", userfile);
489 segfault 1.1 copyfile(userfile, s);
490     }
491    
492 fabian 1.27 /* Timer info */
493     static int lastmin = 99;
494     static time_t then;
495     static struct tm nowtm;
496 segfault 1.1
497 fabian 1.34 /* Called once a second.
498     *
499     * Note: Try to not put any Context lines in here (guppy 21Mar2000).
500 fabian 1.27 */
501 segfault 1.1 static void core_secondly()
502     {
503     static int cnt = 0;
504     int miltime;
505    
506 fabian 1.27 do_check_timers(&utimer); /* Secondly timers */
507 segfault 1.1 cnt++;
508 fabian 1.27 if (cnt >= 10) { /* Every 10 seconds */
509 segfault 1.1 cnt = 0;
510     check_expired_dcc();
511     if (con_chan && !backgrd) {
512     dprintf(DP_STDOUT, "\033[2J\033[1;1H");
513     tell_verbose_status(DP_STDOUT);
514     do_module_report(DP_STDOUT, 0, "server");
515     do_module_report(DP_STDOUT, 0, "channels");
516     }
517     }
518 tothwolf 1.79 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
519 fabian 1.17 if (nowtm.tm_min != lastmin) {
520 segfault 1.1 int i = 0;
521    
522 fabian 1.27 /* Once a minute */
523 segfault 1.1 lastmin = (lastmin + 1) % 60;
524     call_hook(HOOK_MINUTELY);
525     check_expired_ignores();
526 fabian 1.27 autolink_cycle(NULL); /* Attempt autolinks */
527     /* In case for some reason more than 1 min has passed: */
528 fabian 1.17 while (nowtm.tm_min != lastmin) {
529 fabian 1.27 /* Timer drift, dammit */
530 fabian 1.17 debug2("timer: drift (lastmin=%d, now=%d)", lastmin, nowtm.tm_min);
531 segfault 1.1 i++;
532     lastmin = (lastmin + 1) % 60;
533     call_hook(HOOK_MINUTELY);
534     }
535     if (i > 1)
536     putlog(LOG_MISC, "*", "(!) timer drift -- spun %d minutes", i);
537 fabian 1.17 miltime = (nowtm.tm_hour * 100) + (nowtm.tm_min);
538     if (((int) (nowtm.tm_min / 5) * 5) == (nowtm.tm_min)) { /* 5 min */
539 segfault 1.1 call_hook(HOOK_5MINUTELY);
540     check_botnet_pings();
541 guppy 1.49 if (!quick_logs) {
542 segfault 1.1 flushlogs();
543     check_logsize();
544     }
545 guppy 1.49 if (!miltime) { /* At midnight */
546     char s[25];
547 segfault 1.1 int j;
548    
549 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
550 fabian 1.4 putlog(LOG_ALL, "*", "--- %.11s%s", s, s + 20);
551 guppy 1.69 call_hook(HOOK_BACKUP);
552 segfault 1.1 for (j = 0; j < max_logs; j++) {
553     if (logs[j].filename != NULL && logs[j].f != NULL) {
554     fclose(logs[j].f);
555     logs[j].f = NULL;
556     }
557     }
558     }
559     }
560 fabian 1.17 if (nowtm.tm_min == notify_users_at)
561 segfault 1.1 call_hook(HOOK_HOURLY);
562 fabian 1.27 /* These no longer need checking since they are all check vs minutely
563     * settings and we only get this far on the minute.
564     */
565 segfault 1.1 if (miltime == switch_logfiles_at) {
566     call_hook(HOOK_DAILY);
567     if (!keep_all_logs) {
568 ite 1.73 putlog(LOG_MISC, "*", _("Switching logfiles..."));
569 segfault 1.1 for (i = 0; i < max_logs; i++)
570     if (logs[i].filename) {
571     char s[1024];
572    
573     if (logs[i].f) {
574     fclose(logs[i].f);
575     logs[i].f = NULL;
576     }
577 guppy 1.49 egg_snprintf(s, sizeof s, "%s.yesterday", logs[i].filename);
578 segfault 1.1 unlink(s);
579 fabian 1.2 movefile(logs[i].filename, s);
580 segfault 1.1 }
581     }
582     }
583     }
584     }
585    
586     static void core_minutely()
587     {
588 fabian 1.17 check_tcl_time(&nowtm);
589 segfault 1.1 do_check_timers(&timer);
590     if (quick_logs != 0) {
591     flushlogs();
592     check_logsize();
593     }
594     }
595    
596     static void core_hourly()
597     {
598     write_userfile(-1);
599     }
600    
601     static void event_rehash()
602     {
603     check_tcl_event("rehash");
604     }
605    
606     static void event_prerehash()
607     {
608     check_tcl_event("prerehash");
609     }
610    
611     static void event_save()
612     {
613     check_tcl_event("save");
614     }
615    
616     static void event_logfile()
617     {
618     check_tcl_event("logfile");
619     }
620    
621 fabian 1.13 static void event_resettraffic()
622     {
623     otraffic_irc += otraffic_irc_today;
624     itraffic_irc += itraffic_irc_today;
625     otraffic_bn += otraffic_bn_today;
626     itraffic_bn += itraffic_bn_today;
627     otraffic_dcc += otraffic_dcc_today;
628     itraffic_dcc += itraffic_dcc_today;
629     otraffic_unknown += otraffic_unknown_today;
630     itraffic_unknown += itraffic_unknown_today;
631     otraffic_trans += otraffic_trans_today;
632     itraffic_trans += itraffic_trans_today;
633     otraffic_irc_today = otraffic_bn_today = 0;
634     otraffic_dcc_today = otraffic_unknown_today = 0;
635     itraffic_irc_today = itraffic_bn_today = 0;
636     itraffic_dcc_today = itraffic_unknown_today = 0;
637 fabian 1.18 itraffic_trans_today = otraffic_trans_today = 0;
638 fabian 1.13 }
639    
640 guppy 1.61 static void event_loaded()
641     {
642     check_tcl_event("loaded");
643     }
644    
645 segfault 1.1 void kill_tcl();
646     extern module_entry *module_list;
647     void restart_chons();
648    
649     #ifdef STATIC
650     void check_static(char *, char *(*)());
651    
652     #include "mod/static.h"
653     #endif
654 tothwolf 1.79 int init_dcc_max(), init_userent(), init_misc(), init_net(),
655     init_modules(), init_tcl(int, char **);
656 stdarg 1.78 void botnet_init();
657 fabian 1.11
658 fabian 1.44 void patch(const char *str)
659 fabian 1.11 {
660     char *p = strchr(egg_version, '+');
661    
662     if (!p)
663     p = &egg_version[strlen(egg_version)];
664     sprintf(p, "+%s", str);
665     egg_numver++;
666     sprintf(&egg_xtra[strlen(egg_xtra)], " %s", str);
667     }
668 segfault 1.1
669 fabian 1.45 static inline void garbage_collect(void)
670     {
671     static u_8bit_t run_cnt = 0;
672    
673     if (run_cnt == 3)
674     garbage_collect_tclhash();
675     else
676     run_cnt++;
677     }
678    
679 segfault 1.1 int main(int argc, char **argv)
680     {
681     int xx, i;
682 guppy 1.49 char buf[520], s[25];
683 segfault 1.1 FILE *f;
684     struct sigaction sv;
685     struct chanset_t *chan;
686    
687 tothwolf 1.79 #ifdef DEBUG_ASSERT
688 fabian 1.21 /* Make sure it can write core, if you make debug. Else it's pretty
689     * useless (dw)
690     */
691 fabian 1.15 {
692     #include <sys/resource.h>
693     struct rlimit cdlim;
694 fabian 1.21
695 fabian 1.15 cdlim.rlim_cur = RLIM_INFINITY;
696     cdlim.rlim_max = RLIM_INFINITY;
697 fabian 1.32 setrlimit(RLIMIT_CORE, &cdlim);
698 fabian 1.15 }
699     #endif
700    
701 fabian 1.27 /* Initialise context list */
702 fabian 1.32 for (i = 0; i < 16; i++)
703 fabian 1.10 Context;
704 fabian 1.32
705 ite 1.76 setlocale(LC_MESSAGES, "");
706     bindtextdomain(PACKAGE, LOCALEDIR);
707     textdomain(PACKAGE);
708    
709 segfault 1.1 #include "patch.h"
710 fabian 1.27 /* Version info! */
711 guppy 1.49 egg_snprintf(ver, sizeof ver, "eggdrop v%s", egg_version);
712 guppy 1.56 egg_snprintf(version, sizeof version, "Eggdrop v%s (C)1997 Robey Pointer (C)2001 Eggheads",
713     egg_version);
714 fabian 1.27 /* Now add on the patchlevel (for Tcl) */
715 fabian 1.2 sprintf(&egg_version[strlen(egg_version)], " %u", egg_numver);
716 segfault 1.1 strcat(egg_version, egg_xtra);
717     #ifdef STOP_UAC
718     {
719     int nvpair[2];
720    
721     nvpair[0] = SSIN_UACPROC;
722     nvpair[1] = UAC_NOPRINT;
723     setsysinfo(SSI_NVPAIRS, (char *) nvpair, 1, NULL, 0);
724     }
725     #endif
726 fabian 1.27
727     /* Set up error traps: */
728 segfault 1.1 sv.sa_handler = got_bus;
729     sigemptyset(&sv.sa_mask);
730     #ifdef SA_RESETHAND
731     sv.sa_flags = SA_RESETHAND;
732     #else
733     sv.sa_flags = 0;
734     #endif
735     sigaction(SIGBUS, &sv, NULL);
736     sv.sa_handler = got_segv;
737     sigaction(SIGSEGV, &sv, NULL);
738     #ifdef SA_RESETHAND
739     sv.sa_flags = 0;
740     #endif
741     sv.sa_handler = got_fpe;
742     sigaction(SIGFPE, &sv, NULL);
743     sv.sa_handler = got_term;
744     sigaction(SIGTERM, &sv, NULL);
745     sv.sa_handler = got_hup;
746     sigaction(SIGHUP, &sv, NULL);
747     sv.sa_handler = got_quit;
748     sigaction(SIGQUIT, &sv, NULL);
749     sv.sa_handler = SIG_IGN;
750     sigaction(SIGPIPE, &sv, NULL);
751     sv.sa_handler = got_ill;
752     sigaction(SIGILL, &sv, NULL);
753     sv.sa_handler = got_alarm;
754     sigaction(SIGALRM, &sv, NULL);
755 fabian 1.27
756     /* Initialize variables and stuff */
757 segfault 1.1 now = time(NULL);
758     chanset = NULL;
759 tothwolf 1.79 memcpy(&nowtm, localtime(&now), sizeof(struct tm));
760 fabian 1.17 lastmin = nowtm.tm_min;
761 poptix 1.63 srandom(now % (getpid() + getppid()));
762 segfault 1.1 if (argc > 1)
763     for (i = 1; i < argc; i++)
764     do_arg(argv[i]);
765     printf("\n%s\n", version);
766 guppy 1.53
767     /* Don't allow eggdrop to run as root */
768     if (((int) getuid() == 0) || ((int) geteuid() == 0))
769 ite 1.76 fatal(_("ERROR: Eggdrop will not run as root!"), 0);
770 guppy 1.53
771 segfault 1.1 init_dcc_max();
772     init_userent();
773     init_misc();
774 stdarg 1.78 botnet_init();
775 segfault 1.1 init_net();
776     init_modules();
777 fabian 1.43 if (backgrd)
778     bg_prepare_split();
779 fabian 1.8 init_tcl(argc, argv);
780 segfault 1.1 #ifdef STATIC
781     link_statics();
782     #endif
783 guppy 1.49 strncpyz(s, ctime(&now), sizeof s);
784 segfault 1.1 strcpy(&s[11], &s[20]);
785     putlog(LOG_ALL, "*", "--- Loading %s (%s)", ver, s);
786     chanprog();
787 guppy 1.49 if (!encrypt_pass) {
788 ite 1.73 printf(_("You have installed modules but have not selected an encryption\n\
789     module, please consult the default config file for info.\n"));
790 fabian 1.43 bg_send_quit(BG_ABORT);
791 segfault 1.1 exit(1);
792     }
793     i = 0;
794     for (chan = chanset; chan; chan = chan->next)
795     i++;
796 fabian 1.4 putlog(LOG_MISC, "*", "=== %s: %d channels, %d users.",
797 segfault 1.1 botnetnick, i, count_users(userlist));
798     cache_miss = 0;
799     cache_hit = 0;
800 guppy 1.49 egg_snprintf(pid_file, sizeof pid_file, "pid.%s", botnetnick);
801 fabian 1.27
802     /* Check for pre-existing eggdrop! */
803 segfault 1.1 f = fopen(pid_file, "r");
804     if (f != NULL) {
805     fgets(s, 10, f);
806     xx = atoi(s);
807 fabian 1.27 kill(xx, SIGCHLD); /* Meaningless kill to determine if pid
808     is used */
809 segfault 1.1 if (errno != ESRCH) {
810 ite 1.73 printf(_("I detect %s already running from this directory.\n"), origbotname);
811     printf(_("If this is incorrect, erase the %s\n"), pid_file);
812 fabian 1.43 bg_send_quit(BG_ABORT);
813 segfault 1.1 exit(1);
814     }
815     }
816 fabian 1.27
817     /* Move into background? */
818 segfault 1.1 if (backgrd) {
819 fabian 1.38 #ifndef CYGWIN_HACKS
820 fabian 1.43 bg_do_split();
821 fabian 1.38 } else { /* !backgrd */
822 fabian 1.5 #endif
823 fabian 1.38 xx = getpid();
824     if (xx != 0) {
825     FILE *fp;
826    
827     /* Write pid to file */
828     unlink(pid_file);
829     fp = fopen(pid_file, "w");
830     if (fp != NULL) {
831     fprintf(fp, "%u\n", xx);
832     if (fflush(fp)) {
833     /* Let the bot live since this doesn't appear to be a botchk */
834 ite 1.73 printf(_("* Warning! Could not write %s file!\n"), pid_file);
835 fabian 1.38 fclose(fp);
836     unlink(pid_file);
837     } else
838     fclose(fp);
839 fabian 1.27 } else
840 ite 1.73 printf(_("* Warning! Could not write %s file!\n"), pid_file);
841 fabian 1.38 #ifdef CYGWIN_HACKS
842 guppy 1.68 printf("Launched into the background (pid: %d)\n\n", xx);
843 fabian 1.38 #endif
844     }
845 segfault 1.1 }
846 fabian 1.38
847     use_stderr = 0; /* Stop writing to stderr now */
848 segfault 1.1 if (backgrd) {
849 fabian 1.27 /* Ok, try to disassociate from controlling terminal (finger cross) */
850 fabian 1.5 #if HAVE_SETPGID && !defined(CYGWIN_HACKS)
851 segfault 1.1 setpgid(0, 0);
852     #endif
853 fabian 1.38 /* Tcl wants the stdin, stdout and stderr file handles kept open. */
854 segfault 1.1 freopen("/dev/null", "r", stdin);
855     freopen("/dev/null", "w", stdout);
856     freopen("/dev/null", "w", stderr);
857 poptix 1.62 #ifdef CYGWIN_HACKS
858     FreeConsole();
859     #endif
860 segfault 1.1 }
861 fabian 1.27
862     /* Terminal emulating dcc chat */
863 fabian 1.42 if (!backgrd && term_z) {
864 segfault 1.1 int n = new_dcc(&DCC_CHAT, sizeof(struct chat_info));
865    
866 drummer 1.71 dcc[n].addr[0] = '\0';
867 segfault 1.1 dcc[n].sock = STDOUT;
868     dcc[n].timeval = now;
869     dcc[n].u.chat->con_flags = conmask;
870     dcc[n].u.chat->strip_flags = STRIP_ALL;
871     dcc[n].status = STAT_ECHO;
872     strcpy(dcc[n].nick, "HQ");
873     strcpy(dcc[n].host, "llama@console");
874     dcc[n].user = get_user_by_handle(userlist, "HQ");
875 fabian 1.27 /* Make sure there's an innocuous HQ user if needed */
876 segfault 1.1 if (!dcc[n].user) {
877 fabian 1.24 userlist = adduser(userlist, "HQ", "none", "-", USER_PARTY);
878 segfault 1.1 dcc[n].user = get_user_by_handle(userlist, "HQ");
879     }
880 fabian 1.27 setsock(STDOUT, 0); /* Entry in net table */
881 segfault 1.1 dprintf(n, "\n### ENTERING DCC CHAT SIMULATION ###\n\n");
882     dcc_chatter(n);
883     }
884 fabian 1.27
885 segfault 1.1 then = now;
886     online_since = now;
887 fabian 1.27 autolink_cycle(NULL); /* Hurry and connect to tandem bots */
888 segfault 1.1 add_help_reference("cmds1.help");
889     add_help_reference("cmds2.help");
890     add_help_reference("core.help");
891 fabian 1.22 add_hook(HOOK_SECONDLY, (Function) core_secondly);
892     add_hook(HOOK_MINUTELY, (Function) core_minutely);
893     add_hook(HOOK_HOURLY, (Function) core_hourly);
894     add_hook(HOOK_REHASH, (Function) event_rehash);
895     add_hook(HOOK_PRE_REHASH, (Function) event_prerehash);
896     add_hook(HOOK_USERFILE, (Function) event_save);
897 guppy 1.69 add_hook(HOOK_BACKUP, (Function) backup_userfile);
898 fabian 1.22 add_hook(HOOK_DAILY, (Function) event_logfile);
899     add_hook(HOOK_DAILY, (Function) event_resettraffic);
900 guppy 1.61 add_hook(HOOK_LOADED, (Function) event_loaded);
901    
902     call_hook(HOOK_LOADED);
903 segfault 1.1
904     debug0("main: entering loop");
905     while (1) {
906     int socket_cleanup = 0;
907    
908 fabian 1.43 #if !defined(HAVE_PRE7_5_TCL)
909 fabian 1.27 /* Process a single tcl event */
910 segfault 1.1 Tcl_DoOneEvent(TCL_ALL_EVENTS | TCL_DONT_WAIT);
911 fabian 1.5 #endif
912 fabian 1.45
913 fabian 1.27 /* Lets move some of this here, reducing the numer of actual
914     * calls to periodic_timers
915     */
916 segfault 1.1 now = time(NULL);
917 fabian 1.27 random(); /* Woop, lets really jumble things */
918     if (now != then) { /* Once a second */
919 segfault 1.1 call_hook(HOOK_SECONDLY);
920     then = now;
921     }
922 fabian 1.45
923     /* Only do this every so often. */
924 segfault 1.1 if (!socket_cleanup) {
925 fabian 1.45 socket_cleanup = 5;
926    
927     /* Remove dead dcc entries. */
928 fabian 1.16 dcc_remove_lost();
929 fabian 1.45
930     /* Check for server or dcc activity. */
931 segfault 1.1 dequeue_sockets();
932     } else
933     socket_cleanup--;
934 fabian 1.45
935     /* Free unused structures. */
936     garbage_collect();
937    
938 segfault 1.1 xx = sockgets(buf, &i);
939 fabian 1.27 if (xx >= 0) { /* Non-error */
940 segfault 1.1 int idx;
941    
942     for (idx = 0; idx < dcc_total; idx++)
943     if (dcc[idx].sock == xx) {
944 fabian 1.13 if (dcc[idx].type && dcc[idx].type->activity) {
945 fabian 1.27 /* Traffic stats */
946     if (dcc[idx].type->name) {
947     if (!strncmp(dcc[idx].type->name, "BOT", 3))
948     itraffic_bn_today += strlen(buf) + 1;
949     else if (!strcmp(dcc[idx].type->name, "SERVER"))
950     itraffic_irc_today += strlen(buf) + 1;
951     else if (!strncmp(dcc[idx].type->name, "CHAT", 4))
952     itraffic_dcc_today += strlen(buf) + 1;
953     else if (!strncmp(dcc[idx].type->name, "FILES", 5))
954     itraffic_dcc_today += strlen(buf) + 1;
955     else if (!strcmp(dcc[idx].type->name, "SEND"))
956     itraffic_trans_today += strlen(buf) + 1;
957     else if (!strncmp(dcc[idx].type->name, "GET", 3))
958     itraffic_trans_today += strlen(buf) + 1;
959     else
960     itraffic_unknown_today += strlen(buf) + 1;
961     }
962 guppy 1.56 dcc[idx].type->activity(idx, buf, i);
963 fabian 1.13 } else
964 segfault 1.1 putlog(LOG_MISC, "*",
965     "!!! untrapped dcc activity: type %s, sock %d",
966     dcc[idx].type->name, dcc[idx].sock);
967     break;
968     }
969     } else if (xx == -1) { /* EOF from someone */
970     int idx;
971    
972 fabian 1.45 if (i == STDOUT && !backgrd)
973 segfault 1.1 fatal("END OF FILE ON TERMINAL", 0);
974     for (idx = 0; idx < dcc_total; idx++)
975     if (dcc[idx].sock == i) {
976     if (dcc[idx].type && dcc[idx].type->eof)
977     dcc[idx].type->eof(idx);
978     else {
979     putlog(LOG_MISC, "*",
980     "*** ATTENTION: DEAD SOCKET (%d) OF TYPE %s UNTRAPPED",
981 fabian 1.2 i, dcc[idx].type ? dcc[idx].type->name : "*UNKNOWN*");
982     killsock(i);
983 segfault 1.1 lostdcc(idx);
984     }
985     idx = dcc_total + 1;
986     }
987     if (idx == dcc_total) {
988     putlog(LOG_MISC, "*",
989 fabian 1.2 "(@) EOF socket %d, not a dcc socket, not anything.", i);
990     close(i);
991     killsock(i);
992 segfault 1.1 }
993 fabian 1.45 } else if (xx == -2 && errno != EINTR) { /* select() error */
994 segfault 1.1 putlog(LOG_MISC, "*", "* Socket error #%d; recovering.", errno);
995     for (i = 0; i < dcc_total; i++) {
996     if ((fcntl(dcc[i].sock, F_GETFD, 0) == -1) && (errno = EBADF)) {
997     putlog(LOG_MISC, "*",
998     "DCC socket %d (type %d, name '%s') expired -- pfft",
999     dcc[i].sock, dcc[i].type, dcc[i].nick);
1000     killsock(dcc[i].sock);
1001     lostdcc(i);
1002     i--;
1003     }
1004     }
1005 fabian 1.45 } else if (xx == -3) {
1006 segfault 1.1 call_hook(HOOK_IDLE);
1007 fabian 1.27 socket_cleanup = 0; /* If we've been idle, cleanup & flush */
1008 segfault 1.1 }
1009 fabian 1.27
1010 segfault 1.1 if (do_restart) {
1011     if (do_restart == -2)
1012     rehash();
1013     else {
1014 fabian 1.27 /* Unload as many modules as possible */
1015 segfault 1.1 int f = 1;
1016     module_entry *p;
1017     Function x;
1018     char xx[256];
1019 guppy 1.59
1020     /* oops, I guess we should call this event before tcl is restarted */
1021 stdarg 1.77 check_tcl_event("prerestart");
1022 segfault 1.1
1023     while (f) {
1024     f = 0;
1025     for (p = module_list; p != NULL; p = p->next) {
1026     dependancy *d = dependancy_list;
1027     int ok = 1;
1028    
1029     while (ok && d) {
1030     if (d->needed == p)
1031     ok = 0;
1032     d = d->next;
1033     }
1034     if (ok) {
1035     strcpy(xx, p->name);
1036     if (module_unload(xx, origbotname) == NULL) {
1037     f = 1;
1038     break;
1039     }
1040     }
1041     }
1042     }
1043     p = module_list;
1044     if (p && p->next && p->next->next)
1045 fabian 1.45 /* Should be only 2 modules now - blowfish (or some other
1046     encryption module) and eggdrop. */
1047 ite 1.73 putlog(LOG_MISC, "*", _("Stagnant module; there WILL be memory leaks!"));
1048 segfault 1.1 flushlogs();
1049     kill_tcl();
1050 fabian 1.8 init_tcl(argc, argv);
1051 fabian 1.30 /* We expect the encryption module as the current module pointed
1052     * to by `module_list'.
1053     */
1054 segfault 1.1 x = p->funcs[MODCALL_START];
1055 fabian 1.30 /* `NULL' indicates that we just recently restarted. The module
1056     * is expected to re-initialise as needed.
1057     */
1058     x(NULL);
1059 segfault 1.1 rehash();
1060     restart_chons();
1061 guppy 1.61 call_hook(HOOK_LOADED);
1062 segfault 1.1 }
1063     do_restart = 0;
1064     }
1065     }
1066     }

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