Commit | Line | Data |
---|---|---|
c215a4bc IJ |
1 | /* |
2 | * This file is part of secnet. | |
3 | * See README for full list of copyright holders. | |
4 | * | |
5 | * secnet is free software; you can redistribute it and/or modify it | |
6 | * under the terms of the GNU General Public License as published by | |
9c6a8729 | 7 | * the Free Software Foundation; either version 3 of the License, or |
c215a4bc IJ |
8 | * (at your option) any later version. |
9 | * | |
10 | * secnet is distributed in the hope that it will be useful, but | |
11 | * WITHOUT ANY WARRANTY; without even the implied warranty of | |
12 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
13 | * General Public License for more details. | |
14 | * | |
15 | * You should have received a copy of the GNU General Public License | |
16 | * version 3 along with secnet; if not, see | |
17 | * https://www.gnu.org/licenses/gpl.html. | |
18 | */ | |
19 | ||
8689b3a9 | 20 | #include "secnet.h" |
2fe58dfd | 21 | #include <stdio.h> |
59230b9b IJ |
22 | #include <assert.h> |
23 | #include <limits.h> | |
2fe58dfd SE |
24 | #include <string.h> |
25 | #include <getopt.h> | |
2fe58dfd | 26 | #include <errno.h> |
8689b3a9 | 27 | #include <unistd.h> |
2fe58dfd | 28 | #include <sys/socket.h> |
2fe58dfd | 29 | #include <arpa/inet.h> |
2fe58dfd | 30 | #include <pwd.h> |
08daaaff | 31 | #include <grp.h> |
2fe58dfd | 32 | |
2fe58dfd SE |
33 | #include "util.h" |
34 | #include "conffile.h" | |
7138d0c5 | 35 | #include "process.h" |
2fe58dfd | 36 | |
29672515 RK |
37 | #if __APPLE__ |
38 | /* apple's poll() does not work on char devs */ | |
39 | # define USE_SELECT 1 | |
40 | #endif | |
41 | ||
b2a56f7c | 42 | /* XXX should be from autoconf */ |
fe5e9cc4 SE |
43 | static const char *configfile="/etc/secnet/secnet.conf"; |
44 | static const char *sites_key="sites"; | |
baa06aeb | 45 | bool_t just_check_config=False; |
2fe58dfd SE |
46 | static char *userid=NULL; |
47 | static uid_t uid=0; | |
08daaaff | 48 | static gid_t gid; |
b2a56f7c | 49 | bool_t background=True; |
2fe58dfd | 50 | static char *pidfile=NULL; |
9d3a4132 | 51 | bool_t require_root_privileges=False; |
fe5e9cc4 | 52 | cstring_t require_root_privileges_explanation=NULL; |
2fe58dfd | 53 | |
7138d0c5 SE |
54 | static pid_t secnet_pid; |
55 | ||
2fe58dfd SE |
56 | /* Structures dealing with poll() call */ |
57 | struct poll_interest { | |
8bebb299 | 58 | beforepoll_fn *before; /* 0 if deregistered and waiting to be deleted */ |
2fe58dfd SE |
59 | afterpoll_fn *after; |
60 | void *state; | |
1caa23ff | 61 | int32_t nfds; |
fe5e9cc4 | 62 | cstring_t desc; |
cf5f1149 | 63 | LIST_ENTRY(poll_interest) entry; |
2fe58dfd | 64 | }; |
cf5f1149 | 65 | static LIST_HEAD(, poll_interest) reg = LIST_HEAD_INITIALIZER(®); |
2fe58dfd | 66 | |
8bebb299 IJ |
67 | static bool_t interest_isregistered(const struct poll_interest *i) |
68 | { | |
69 | return !!i->before; | |
70 | } | |
71 | ||
2fe58dfd SE |
72 | static bool_t finished=False; |
73 | ||
74 | /* Parse the command line options */ | |
75 | static void parse_options(int argc, char **argv) | |
76 | { | |
77 | int c; | |
78 | ||
79 | while (True) { | |
80 | int option_index = 0; | |
81 | static struct option long_options[] = { | |
82 | {"verbose", 0, 0, 'v'}, | |
83 | {"nowarnings", 0, 0, 'w'}, | |
84 | {"help", 0, 0, 2}, | |
85 | {"version", 0, 0, 1}, | |
86 | {"nodetach", 0, 0, 'n'}, | |
7b1a9fb7 | 87 | {"managed", 0, 0, 'm'}, |
2fe58dfd SE |
88 | {"silent", 0, 0, 'f'}, |
89 | {"quiet", 0, 0, 'f'}, | |
dd568518 | 90 | {"debug", 0, 0, 'd'}, |
2fe58dfd | 91 | {"config", 1, 0, 'c'}, |
baa06aeb | 92 | {"just-check-config", 0, 0, 'j'}, |
794f2398 | 93 | {"sites-key", 1, 0, 's'}, |
2fe58dfd SE |
94 | {0,0,0,0} |
95 | }; | |
96 | ||
7b1a9fb7 | 97 | c=getopt_long(argc, argv, "vwdnjc:ft:s:m", |
2fe58dfd SE |
98 | long_options, &option_index); |
99 | if (c==-1) | |
100 | break; | |
101 | ||
102 | switch(c) { | |
103 | case 2: | |
104 | /* Help */ | |
4f5e39ec SE |
105 | printf("Usage: secnet [OPTION]...\n\n" |
106 | " -f, --silent, --quiet suppress error messages\n" | |
107 | " -w, --nowarnings suppress warnings\n" | |
108 | " -v, --verbose output extra diagnostics\n" | |
109 | " -c, --config=filename specify a configuration file\n" | |
110 | " -j, --just-check-config stop after reading " | |
111 | "configuration file\n" | |
112 | " -s, --sites-key=name configuration key that " | |
113 | "specifies active sites\n" | |
114 | " -n, --nodetach do not run in background\n" | |
7b1a9fb7 | 115 | " -m, --managed running under a supervisor\n" |
dd568518 | 116 | " -d, --debug output debug messages\n" |
4f5e39ec SE |
117 | " --help display this help and exit\n" |
118 | " --version output version information " | |
119 | "and exit\n" | |
2fe58dfd SE |
120 | ); |
121 | exit(0); | |
122 | break; | |
123 | ||
124 | case 1: | |
125 | /* Version */ | |
4f5e39ec | 126 | printf("%s\n",version); |
2fe58dfd SE |
127 | exit(0); |
128 | break; | |
129 | ||
cb807040 IJ |
130 | case 'd': |
131 | message_level|=M_DEBUG_CONFIG|M_DEBUG_PHASE|M_DEBUG; | |
132 | /* fall through */ | |
2fe58dfd | 133 | case 'v': |
469fd1d9 | 134 | message_level|=M_INFO|M_NOTICE|M_WARNING|M_ERR|M_SECURITY| |
b2a56f7c | 135 | M_FATAL; |
2fe58dfd SE |
136 | break; |
137 | ||
b2a56f7c SE |
138 | case 'w': |
139 | message_level&=(~M_WARNING); | |
2fe58dfd SE |
140 | break; |
141 | ||
2fe58dfd SE |
142 | case 'f': |
143 | message_level=M_FATAL; | |
144 | break; | |
145 | ||
b2a56f7c SE |
146 | case 'n': |
147 | background=False; | |
148 | break; | |
149 | ||
7b1a9fb7 RK |
150 | case 'm': |
151 | secnet_is_daemon=True; | |
152 | break; | |
153 | ||
2fe58dfd SE |
154 | case 'c': |
155 | if (optarg) | |
156 | configfile=safe_strdup(optarg,"config_filename"); | |
157 | else | |
158 | fatal("secnet: no config filename specified"); | |
159 | break; | |
160 | ||
baa06aeb SE |
161 | case 'j': |
162 | just_check_config=True; | |
163 | break; | |
164 | ||
794f2398 SE |
165 | case 's': |
166 | if (optarg) | |
167 | sites_key=safe_strdup(optarg,"sites-key"); | |
168 | else | |
169 | fatal("secnet: no sites key specified"); | |
170 | break; | |
171 | ||
2fe58dfd | 172 | case '?': |
20c68a90 | 173 | exit(1); |
2fe58dfd SE |
174 | break; |
175 | ||
176 | default: | |
469fd1d9 | 177 | Message(M_ERR,"secnet: Unknown getopt code %c\n",c); |
2fe58dfd SE |
178 | } |
179 | } | |
180 | ||
181 | if (argc-optind != 0) { | |
469fd1d9 | 182 | Message(M_ERR,"secnet: You gave extra command line parameters, " |
2fe58dfd SE |
183 | "which were ignored.\n"); |
184 | } | |
185 | } | |
186 | ||
187 | static void setup(dict_t *config) | |
188 | { | |
189 | list_t *l; | |
190 | item_t *site; | |
191 | dict_t *system; | |
2fe58dfd SE |
192 | struct passwd *pw; |
193 | struct cloc loc; | |
194 | int i; | |
195 | ||
196 | l=dict_lookup(config,"system"); | |
197 | ||
198 | if (!l || list_elem(l,0)->type!=t_dict) { | |
4f5e39ec | 199 | fatal("configuration does not include a \"system\" dictionary"); |
2fe58dfd SE |
200 | } |
201 | system=list_elem(l,0)->data.dict; | |
202 | loc=list_elem(l,0)->loc; | |
203 | ||
204 | /* Arrange systemwide log facility */ | |
205 | l=dict_lookup(system,"log"); | |
206 | if (!l) { | |
4f5e39ec | 207 | fatal("configuration does not include a system/log facility"); |
2fe58dfd | 208 | } |
b2a56f7c | 209 | system_log=init_log(l); |
2fe58dfd SE |
210 | |
211 | /* Who are we supposed to run as? */ | |
212 | userid=dict_read_string(system,"userid",False,"system",loc); | |
213 | if (userid) { | |
7b1a9fb7 | 214 | if (!(pw=getpwnam(userid))) |
4f5e39ec | 215 | fatal("userid \"%s\" not found",userid); |
08daaaff RK |
216 | uid=pw->pw_uid; |
217 | gid=pw->pw_gid; | |
2fe58dfd SE |
218 | } |
219 | ||
220 | /* Pidfile name */ | |
221 | pidfile=dict_read_string(system,"pidfile",False,"system",loc); | |
222 | ||
9d3a4132 SE |
223 | /* Check whether we need root privileges */ |
224 | if (require_root_privileges && uid!=0) { | |
4f5e39ec SE |
225 | fatal("the configured feature \"%s\" requires " |
226 | "that secnet retain root privileges while running.", | |
9d3a4132 SE |
227 | require_root_privileges_explanation); |
228 | } | |
229 | ||
2fe58dfd | 230 | /* Go along site list, starting sites */ |
794f2398 | 231 | l=dict_lookup(config,sites_key); |
2fe58dfd | 232 | if (!l) { |
794f2398 SE |
233 | Message(M_WARNING,"secnet: configuration key \"%s\" is missing; no " |
234 | "remote sites are defined\n",sites_key); | |
9d3a4132 SE |
235 | } else { |
236 | i=0; | |
237 | while ((site=list_elem(l, i++))) { | |
238 | struct site_if *s; | |
239 | if (site->type!=t_closure) { | |
240 | cfgfatal(site->loc,"system","non-closure in site list"); | |
241 | } | |
242 | if (site->data.closure->type!=CL_SITE) { | |
243 | cfgfatal(site->loc,"system","non-site closure in site list"); | |
244 | } | |
245 | s=site->data.closure->interface; | |
246 | s->control(s->st,True); | |
2fe58dfd | 247 | } |
2fe58dfd SE |
248 | } |
249 | } | |
250 | ||
8bebb299 | 251 | struct poll_interest *register_for_poll(void *st, beforepoll_fn *before, |
32fc582f | 252 | afterpoll_fn *after, cstring_t desc) |
2fe58dfd SE |
253 | { |
254 | struct poll_interest *i; | |
255 | ||
b7886fd4 | 256 | NEW(i); |
2fe58dfd SE |
257 | i->before=before; |
258 | i->after=after; | |
259 | i->state=st; | |
2fe58dfd SE |
260 | i->nfds=0; |
261 | i->desc=desc; | |
cf5f1149 | 262 | LIST_INSERT_HEAD(®, i, entry); |
8bebb299 IJ |
263 | return i; |
264 | } | |
265 | ||
266 | void deregister_for_poll(struct poll_interest *i) | |
267 | { | |
268 | /* We cannot simply throw this away because we're reentrantly | |
269 | * inside the main loop, which needs to remember which range of | |
270 | * fds corresponds to this now-obsolete interest */ | |
271 | i->before=0; | |
2fe58dfd SE |
272 | } |
273 | ||
274 | static void system_phase_hook(void *sst, uint32_t newphase) | |
275 | { | |
276 | if (newphase==PHASE_SHUTDOWN && pidfile) { | |
277 | /* Try to unlink the pidfile; don't care if it fails */ | |
278 | unlink(pidfile); | |
279 | } | |
280 | } | |
281 | ||
29672515 RK |
282 | #if USE_SELECT |
283 | static int fakepoll(struct pollfd *fds, int nfds, int timeout) { | |
284 | fd_set infds[1], outfds[1]; | |
285 | int maxfd = -1, i, rc; | |
286 | struct timeval tvtimeout; | |
287 | FD_ZERO(infds); | |
288 | FD_ZERO(outfds); | |
289 | for(i = 0; i < nfds; ++i) { | |
290 | if(fds[i].events & POLLIN) | |
291 | FD_SET(fds[i].fd, infds); | |
292 | if(fds[i].events & POLLOUT) | |
293 | FD_SET(fds[i].fd, outfds); | |
294 | if(fds[i].fd > maxfd) | |
295 | maxfd = fds[i].fd; | |
296 | } | |
297 | if(timeout != -1) { | |
298 | tvtimeout.tv_sec = timeout / 1000; | |
299 | tvtimeout.tv_usec = 1000 * (timeout % 1000); | |
300 | } | |
301 | rc = select(maxfd + 1, infds, outfds, NULL, | |
302 | timeout == -1 ? NULL : &tvtimeout); | |
303 | if(rc >= 0) { | |
304 | for(i = 0; i < nfds; ++i) { | |
305 | int revents = 0; | |
306 | if(FD_ISSET(fds[i].fd, infds)) | |
307 | revents |= POLLIN; | |
308 | if(FD_ISSET(fds[i].fd, outfds)) | |
309 | revents |= POLLOUT; | |
310 | fds[i].revents = revents; | |
311 | } | |
312 | } | |
313 | return rc; | |
314 | } | |
315 | #endif | |
316 | ||
698280de IJ |
317 | struct timeval tv_now_global; |
318 | uint64_t now_global; | |
319 | ||
2fe58dfd SE |
320 | static void run(void) |
321 | { | |
8bebb299 | 322 | struct poll_interest *i, *itmp; |
d613fd78 | 323 | int rv, nfds, idx; |
2fe58dfd | 324 | int timeout; |
67be07ed IJ |
325 | struct pollfd *fds=0; |
326 | int allocdfds=0, shortfall=0; | |
2fe58dfd | 327 | |
7138d0c5 | 328 | Message(M_NOTICE,"%s [%d]: starting\n",version,secnet_pid); |
b2a56f7c | 329 | |
7138d0c5 | 330 | do { |
698280de | 331 | if (gettimeofday(&tv_now_global, NULL)!=0) { |
2fe58dfd SE |
332 | fatal_perror("main loop: gettimeofday"); |
333 | } | |
698280de IJ |
334 | now_global=((uint64_t)tv_now_global.tv_sec*(uint64_t)1000)+ |
335 | ((uint64_t)tv_now_global.tv_usec/(uint64_t)1000); | |
2fe58dfd | 336 | idx=0; |
cf5f1149 | 337 | LIST_FOREACH(i, ®, entry) { |
508bb583 | 338 | int check; |
8bebb299 IJ |
339 | if (interest_isregistered(i)) { |
340 | for (check=0; check<i->nfds; check++) { | |
341 | if(fds[idx+check].revents & POLLNVAL) { | |
342 | fatal("run: poll (%s#%d) set POLLNVAL", i->desc, check); | |
343 | } | |
508bb583 | 344 | } |
8bebb299 | 345 | i->after(i->state, fds+idx, i->nfds); |
29672515 | 346 | } |
2fe58dfd SE |
347 | idx+=i->nfds; |
348 | } | |
67be07ed IJ |
349 | if (shortfall) { |
350 | allocdfds *= 2; | |
351 | allocdfds += shortfall; | |
2f9fa75f | 352 | REALLOC_ARY(fds,allocdfds); |
67be07ed | 353 | } |
67be07ed | 354 | shortfall=0; |
2fe58dfd SE |
355 | idx=0; |
356 | timeout=-1; | |
8bebb299 | 357 | LIST_FOREACH_SAFE(i, ®, entry, itmp) { |
d613fd78 | 358 | int remain=allocdfds-idx; |
2fe58dfd | 359 | nfds=remain; |
8bebb299 IJ |
360 | if (interest_isregistered(i)) { |
361 | rv=i->before(i->state, fds+idx, &nfds, &timeout); | |
362 | if (rv!=0) { | |
363 | if (rv!=ERANGE) | |
364 | fatal("run: beforepoll_fn (%s) returns %d",i->desc,rv); | |
365 | assert(nfds < INT_MAX/4 - shortfall); | |
366 | shortfall += nfds-remain; | |
367 | nfds=0; | |
368 | timeout=0; | |
369 | } | |
370 | } else { | |
67be07ed | 371 | nfds=0; |
2fe58dfd SE |
372 | } |
373 | if (timeout<-1) { | |
779837e1 IJ |
374 | fatal("run: beforepoll_fn (%s) set timeout to %d", |
375 | i->desc,timeout); | |
2fe58dfd | 376 | } |
8bebb299 IJ |
377 | if (!interest_isregistered(i)) { |
378 | /* check this here, rather than earlier, so that we | |
379 | handle the case where i->before() calls deregister */ | |
380 | LIST_REMOVE(i, entry); | |
381 | free(i); | |
382 | continue; | |
383 | } | |
2fe58dfd | 384 | idx+=nfds; |
2fe58dfd SE |
385 | i->nfds=nfds; |
386 | } | |
387 | do { | |
7138d0c5 | 388 | if (finished) break; |
29672515 RK |
389 | #if USE_SELECT |
390 | rv=fakepoll(fds, idx, timeout); | |
391 | #else | |
2fe58dfd | 392 | rv=poll(fds, idx, timeout); |
29672515 | 393 | #endif |
2fe58dfd SE |
394 | if (rv<0) { |
395 | if (errno!=EINTR) { | |
396 | fatal_perror("run: poll"); | |
397 | } | |
398 | } | |
399 | } while (rv<0); | |
7138d0c5 | 400 | } while (!finished); |
3b83c932 | 401 | free(fds); |
2fe58dfd SE |
402 | } |
403 | ||
64f5ae57 IJ |
404 | bool_t will_droppriv(void) |
405 | { | |
406 | assert(current_phase >= PHASE_SETUP); | |
407 | return !!uid; | |
408 | } | |
409 | ||
7b1a9fb7 | 410 | /* Surrender privileges, if necessary */ |
2fe58dfd SE |
411 | static void droppriv(void) |
412 | { | |
08daaaff RK |
413 | if (userid) { |
414 | if (setgid(gid)!=0) | |
415 | fatal_perror("can't set gid to %ld",(long)gid); | |
7b1a9fb7 | 416 | if (initgroups(userid, gid) < 0) |
08daaaff | 417 | fatal_perror("initgroups"); |
b2a56f7c SE |
418 | if (setuid(uid)!=0) { |
419 | fatal_perror("can't set uid to \"%s\"",userid); | |
420 | } | |
08daaaff RK |
421 | assert(getuid() == uid); |
422 | assert(geteuid() == uid); | |
423 | assert(getgid() == gid); | |
424 | assert(getegid() == gid); | |
b2a56f7c | 425 | } |
7b1a9fb7 RK |
426 | } |
427 | ||
428 | /* Become a daemon, if necessary */ | |
429 | static void become_daemon(void) | |
430 | { | |
431 | FILE *pf=NULL; | |
432 | pid_t p; | |
433 | int errfds[2]; | |
434 | ||
435 | add_hook(PHASE_SHUTDOWN,system_phase_hook,NULL); | |
436 | ||
437 | /* We only want to become a daemon if we are not one | |
438 | already */ | |
439 | if (background && !secnet_is_daemon) { | |
2fe58dfd SE |
440 | p=fork(); |
441 | if (p>0) { | |
7b1a9fb7 RK |
442 | /* Parent process - just exit */ |
443 | _exit(0); | |
2fe58dfd SE |
444 | } else if (p==0) { |
445 | /* Child process - all done, just carry on */ | |
b2a56f7c | 446 | secnet_is_daemon=True; |
7b1a9fb7 RK |
447 | if (setsid() < 0) |
448 | fatal_perror("setsid"); | |
2fe58dfd SE |
449 | } else { |
450 | /* Error */ | |
451 | fatal_perror("cannot fork"); | |
452 | exit(1); | |
453 | } | |
2fe58dfd | 454 | } |
7b1a9fb7 RK |
455 | if (secnet_is_daemon) { |
456 | /* stderr etc are redirected to the system/log facility */ | |
6a06198c | 457 | pipe_cloexec(errfds); |
7b1a9fb7 RK |
458 | if (dup2(errfds[1],0) < 0 |
459 | || dup2(errfds[1],1) < 0 | |
460 | || dup2(errfds[1],2) < 0) | |
461 | fatal_perror("can't dup2 pipe"); | |
462 | if (close(errfds[1]) < 0) | |
463 | fatal_perror("can't close redundant pipe endpoint"); | |
464 | log_from_fd(errfds[0],"stderr",system_log); | |
465 | } | |
7138d0c5 | 466 | secnet_pid=getpid(); |
7b1a9fb7 RK |
467 | |
468 | /* Now we can write the pidfile */ | |
469 | if (pidfile) { | |
470 | pf=fopen(pidfile,"w"); | |
471 | if (!pf) { | |
472 | fatal_perror("cannot open pidfile \"%s\"",pidfile); | |
473 | } | |
474 | if (fprintf(pf,"%ld\n",(long)secnet_pid) < 0 | |
475 | || fclose(pf) < 0) | |
476 | fatal_perror("cannot write to pidfile \"%s\"",pidfile); | |
477 | } | |
7138d0c5 | 478 | } |
2fe58dfd | 479 | |
7138d0c5 SE |
480 | static signal_notify_fn finish,ignore_hup; |
481 | static void finish(void *st, int signum) | |
482 | { | |
483 | finished=True; | |
484 | Message(M_NOTICE,"%s [%d]: received %s\n",version,secnet_pid,(string_t)st); | |
485 | } | |
486 | static void ignore_hup(void *st, int signum) | |
487 | { | |
488 | Message(M_INFO,"%s [%d]: received SIGHUP\n",version,secnet_pid); | |
489 | return; | |
2fe58dfd SE |
490 | } |
491 | ||
492 | int main(int argc, char **argv) | |
493 | { | |
494 | dict_t *config; | |
495 | ||
a614cf77 IJ |
496 | phase_hooks_init(); |
497 | ||
2fe58dfd SE |
498 | enter_phase(PHASE_GETOPTS); |
499 | parse_options(argc,argv); | |
500 | ||
501 | enter_phase(PHASE_READCONFIG); | |
502 | config=read_conffile(configfile); | |
503 | ||
504 | enter_phase(PHASE_SETUP); | |
505 | setup(config); | |
baa06aeb SE |
506 | |
507 | if (just_check_config) { | |
508 | Message(M_INFO,"configuration file check complete\n"); | |
509 | exit(0); | |
510 | } | |
511 | ||
7b1a9fb7 RK |
512 | enter_phase(PHASE_DAEMONIZE); |
513 | become_daemon(); | |
514 | ||
baa06aeb SE |
515 | enter_phase(PHASE_GETRESOURCES); |
516 | /* Appropriate phase hooks will have been run */ | |
2fe58dfd SE |
517 | |
518 | enter_phase(PHASE_DROPPRIV); | |
519 | droppriv(); | |
520 | ||
7138d0c5 | 521 | start_signal_handling(); |
fe5e9cc4 SE |
522 | request_signal_notification(SIGTERM,finish,safe_strdup("SIGTERM","run")); |
523 | if (!background) request_signal_notification(SIGINT,finish, | |
524 | safe_strdup("SIGINT","run")); | |
7138d0c5 | 525 | request_signal_notification(SIGHUP,ignore_hup,NULL); |
042a8da9 | 526 | enter_phase(PHASE_RUN); |
2fe58dfd SE |
527 | run(); |
528 | ||
529 | enter_phase(PHASE_SHUTDOWN); | |
7138d0c5 | 530 | Message(M_NOTICE,"%s [%d]: finished\n",version,secnet_pid); |
2fe58dfd SE |
531 | |
532 | return 0; | |
533 | } |