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89ffcd2a LP |
1 | /*-*- Mode: C; c-basic-offset: 8; indent-tabs-mode: nil -*-*/ |
2 | ||
3 | /*** | |
4 | This file is part of systemd. | |
5 | ||
6 | Copyright 2013 Lennart Poettering | |
7 | ||
8 | systemd is free software; you can redistribute it and/or modify it | |
9 | under the terms of the GNU Lesser General Public License as published by | |
10 | the Free Software Foundation; either version 2.1 of the License, or | |
11 | (at your option) any later version. | |
12 | ||
13 | systemd is distributed in the hope that it will be useful, but | |
14 | WITHOUT ANY WARRANTY; without even the implied warranty of | |
15 | MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU | |
16 | Lesser General Public License for more details. | |
17 | ||
18 | You should have received a copy of the GNU Lesser General Public License | |
19 | along with systemd; If not, see <http://www.gnu.org/licenses/>. | |
20 | ***/ | |
21 | ||
22 | #include <assert.h> | |
23 | #include <stdlib.h> | |
24 | #include <pthread.h> | |
e3017af9 | 25 | #include <unistd.h> |
2c93b4ef | 26 | #include <fcntl.h> |
89ffcd2a LP |
27 | |
28 | #include "log.h" | |
29 | #include "util.h" | |
49e5de64 | 30 | #include "macro.h" |
89ffcd2a LP |
31 | |
32 | #include "sd-bus.h" | |
33 | #include "bus-message.h" | |
e3017af9 | 34 | #include "bus-error.h" |
392d5b37 LP |
35 | #include "bus-match.h" |
36 | #include "bus-internal.h" | |
37 | ||
eb01ba5d | 38 | static int match_callback(sd_bus *bus, sd_bus_message *m, void *userdata) { |
392d5b37 LP |
39 | log_info("Match triggered! interface=%s member=%s", strna(sd_bus_message_get_interface(m)), strna(sd_bus_message_get_member(m))); |
40 | return 0; | |
41 | } | |
89ffcd2a | 42 | |
eb01ba5d | 43 | static int object_callback(sd_bus *bus, sd_bus_message *m, void *userdata) { |
a652755d LP |
44 | int r; |
45 | ||
46 | assert(bus); | |
47 | ||
eb01ba5d | 48 | if (sd_bus_message_is_method_error(m, NULL)) |
a652755d LP |
49 | return 0; |
50 | ||
51 | if (sd_bus_message_is_method_call(m, "org.object.test", "Foobar")) { | |
a652755d LP |
52 | log_info("Invoked Foobar() on %s", sd_bus_message_get_path(m)); |
53 | ||
d4100e24 | 54 | r = sd_bus_reply_method_return(bus, m, NULL); |
a652755d LP |
55 | if (r < 0) { |
56 | log_error("Failed to send reply: %s", strerror(-r)); | |
57 | return r; | |
58 | } | |
59 | ||
60 | return 1; | |
61 | } | |
62 | ||
63 | return 0; | |
64 | } | |
65 | ||
89ffcd2a LP |
66 | static int server_init(sd_bus **_bus) { |
67 | sd_bus *bus = NULL; | |
d728d708 | 68 | sd_id128_t id; |
89ffcd2a | 69 | int r; |
20902f3e | 70 | const char *unique; |
89ffcd2a LP |
71 | |
72 | assert(_bus); | |
73 | ||
74 | r = sd_bus_open_user(&bus); | |
75 | if (r < 0) { | |
76 | log_error("Failed to connect to user bus: %s", strerror(-r)); | |
77 | goto fail; | |
78 | } | |
79 | ||
98178d39 | 80 | r = sd_bus_get_server_id(bus, &id); |
d728d708 | 81 | if (r < 0) { |
98178d39 | 82 | log_error("Failed to get server ID: %s", strerror(-r)); |
d728d708 LP |
83 | goto fail; |
84 | } | |
85 | ||
20902f3e LP |
86 | r = sd_bus_get_unique_name(bus, &unique); |
87 | if (r < 0) { | |
88 | log_error("Failed to get unique name: %s", strerror(-r)); | |
89 | goto fail; | |
90 | } | |
91 | ||
d728d708 | 92 | log_info("Peer ID is " SD_ID128_FORMAT_STR ".", SD_ID128_FORMAT_VAL(id)); |
20902f3e | 93 | log_info("Unique ID: %s", unique); |
d728d708 | 94 | log_info("Can send file handles: %i", sd_bus_can_send(bus, 'h')); |
d728d708 | 95 | |
89ffcd2a LP |
96 | r = sd_bus_request_name(bus, "org.freedesktop.systemd.test", 0); |
97 | if (r < 0) { | |
98 | log_error("Failed to acquire name: %s", strerror(-r)); | |
99 | goto fail; | |
100 | } | |
101 | ||
a652755d LP |
102 | r = sd_bus_add_fallback(bus, "/foo/bar", object_callback, NULL); |
103 | if (r < 0) { | |
104 | log_error("Failed to add object: %s", strerror(-r)); | |
105 | goto fail; | |
106 | } | |
107 | ||
392d5b37 LP |
108 | r = sd_bus_add_match(bus, "type='signal',interface='foo.bar',member='Notify'", match_callback, NULL); |
109 | if (r < 0) { | |
110 | log_error("Failed to add match: %s", strerror(-r)); | |
111 | goto fail; | |
112 | } | |
113 | ||
114 | r = sd_bus_add_match(bus, "type='signal',interface='org.freedesktop.DBus',member='NameOwnerChanged'", match_callback, NULL); | |
115 | if (r < 0) { | |
116 | log_error("Failed to add match: %s", strerror(-r)); | |
117 | goto fail; | |
118 | } | |
119 | ||
120 | bus_match_dump(&bus->match_callbacks, 0); | |
121 | ||
89ffcd2a LP |
122 | *_bus = bus; |
123 | return 0; | |
124 | ||
125 | fail: | |
126 | if (bus) | |
127 | sd_bus_unref(bus); | |
128 | ||
129 | return r; | |
130 | } | |
131 | ||
e3017af9 | 132 | static int server(sd_bus *bus) { |
89ffcd2a | 133 | int r; |
e3017af9 | 134 | bool client1_gone = false, client2_gone = false; |
89ffcd2a | 135 | |
e3017af9 | 136 | while (!client1_gone || !client2_gone) { |
d4100e24 | 137 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL; |
2571ead1 | 138 | pid_t pid = 0; |
4a875b61 | 139 | const char *label = NULL; |
89ffcd2a LP |
140 | |
141 | r = sd_bus_process(bus, &m); | |
142 | if (r < 0) { | |
143 | log_error("Failed to process requests: %s", strerror(-r)); | |
144 | goto fail; | |
145 | } | |
e3017af9 | 146 | |
89ffcd2a LP |
147 | if (r == 0) { |
148 | r = sd_bus_wait(bus, (uint64_t) -1); | |
149 | if (r < 0) { | |
150 | log_error("Failed to wait: %s", strerror(-r)); | |
151 | goto fail; | |
152 | } | |
153 | ||
154 | continue; | |
155 | } | |
156 | ||
e3017af9 LP |
157 | if (!m) |
158 | continue; | |
159 | ||
2571ead1 | 160 | sd_bus_message_get_pid(m, &pid); |
4a875b61 LP |
161 | sd_bus_message_get_selinux_context(m, &label); |
162 | log_info("Got message! member=%s pid=%lu label=%s", | |
163 | strna(sd_bus_message_get_member(m)), | |
164 | (unsigned long) pid, | |
165 | strna(label)); | |
89ffcd2a LP |
166 | /* bus_message_dump(m); */ |
167 | /* sd_bus_message_rewind(m, true); */ | |
168 | ||
169 | if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "LowerCase")) { | |
170 | const char *hello; | |
171 | _cleanup_free_ char *lowercase = NULL; | |
172 | ||
173 | r = sd_bus_message_read(m, "s", &hello); | |
174 | if (r < 0) { | |
175 | log_error("Failed to get parameter: %s", strerror(-r)); | |
176 | goto fail; | |
177 | } | |
178 | ||
89ffcd2a LP |
179 | lowercase = strdup(hello); |
180 | if (!lowercase) { | |
181 | r = log_oom(); | |
182 | goto fail; | |
183 | } | |
184 | ||
185 | ascii_strlower(lowercase); | |
186 | ||
d4100e24 | 187 | r = sd_bus_reply_method_return(bus, m, "s", lowercase); |
89ffcd2a | 188 | if (r < 0) { |
d4100e24 | 189 | log_error("Failed to send reply: %s", strerror(-r)); |
89ffcd2a LP |
190 | goto fail; |
191 | } | |
e3017af9 LP |
192 | } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "ExitClient1")) { |
193 | ||
d4100e24 | 194 | r = sd_bus_reply_method_return(bus, m, NULL); |
e3017af9 | 195 | if (r < 0) { |
d4100e24 | 196 | log_error("Failed to send reply: %s", strerror(-r)); |
e3017af9 LP |
197 | goto fail; |
198 | } | |
199 | ||
200 | client1_gone = true; | |
201 | } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "ExitClient2")) { | |
202 | ||
d4100e24 | 203 | r = sd_bus_reply_method_return(bus, m, NULL); |
e3017af9 | 204 | if (r < 0) { |
d4100e24 | 205 | log_error("Failed to send reply: %s", strerror(-r)); |
e3017af9 LP |
206 | goto fail; |
207 | } | |
208 | ||
209 | client2_gone = true; | |
210 | } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "Slow")) { | |
211 | ||
b7f247e0 LP |
212 | sleep(1); |
213 | ||
d4100e24 | 214 | r = sd_bus_reply_method_return(bus, m, NULL); |
e3017af9 | 215 | if (r < 0) { |
d4100e24 | 216 | log_error("Failed to send reply: %s", strerror(-r)); |
e3017af9 LP |
217 | goto fail; |
218 | } | |
219 | ||
2c93b4ef LP |
220 | } else if (sd_bus_message_is_method_call(m, "org.freedesktop.systemd.test", "FileDescriptor")) { |
221 | int fd; | |
222 | static const char x = 'X'; | |
223 | ||
224 | r = sd_bus_message_read(m, "h", &fd); | |
225 | if (r < 0) { | |
226 | log_error("Failed to get parameter: %s", strerror(-r)); | |
227 | goto fail; | |
228 | } | |
229 | ||
230 | if (write(fd, &x, 1) < 0) { | |
231 | log_error("Failed to write to fd: %m"); | |
232 | close_nointr_nofail(fd); | |
233 | goto fail; | |
234 | } | |
235 | ||
d4100e24 | 236 | r = sd_bus_reply_method_return(bus, m, NULL); |
2c93b4ef | 237 | if (r < 0) { |
d4100e24 | 238 | log_error("Failed to send reply: %s", strerror(-r)); |
2c93b4ef LP |
239 | goto fail; |
240 | } | |
241 | ||
e3017af9 | 242 | } else if (sd_bus_message_is_method_call(m, NULL, NULL)) { |
89ffcd2a | 243 | |
d4100e24 | 244 | r = sd_bus_reply_method_error( |
c784c5ce | 245 | bus, m, |
d4100e24 | 246 | &SD_BUS_ERROR_MAKE("org.freedesktop.DBus.Error.UnknownMethod", "Unknown method.")); |
89ffcd2a LP |
247 | if (r < 0) { |
248 | log_error("Failed to send reply: %s", strerror(-r)); | |
249 | goto fail; | |
250 | } | |
251 | } | |
252 | } | |
253 | ||
254 | r = 0; | |
255 | ||
256 | fail: | |
e3017af9 LP |
257 | if (bus) { |
258 | sd_bus_flush(bus); | |
89ffcd2a | 259 | sd_bus_unref(bus); |
e3017af9 | 260 | } |
89ffcd2a | 261 | |
e3017af9 | 262 | return r; |
89ffcd2a LP |
263 | } |
264 | ||
e3017af9 | 265 | static void* client1(void*p) { |
e9b807c1 | 266 | _cleanup_bus_message_unref_ sd_bus_message *reply = NULL; |
89ffcd2a | 267 | sd_bus *bus = NULL; |
c784c5ce | 268 | sd_bus_error error = SD_BUS_ERROR_NULL; |
89ffcd2a LP |
269 | const char *hello; |
270 | int r; | |
2c93b4ef LP |
271 | int pp[2] = { -1, -1 }; |
272 | char x; | |
89ffcd2a LP |
273 | |
274 | r = sd_bus_open_user(&bus); | |
275 | if (r < 0) { | |
276 | log_error("Failed to connect to user bus: %s", strerror(-r)); | |
277 | goto finish; | |
278 | } | |
279 | ||
d4100e24 | 280 | r = sd_bus_call_method( |
89ffcd2a LP |
281 | bus, |
282 | "org.freedesktop.systemd.test", | |
283 | "/", | |
284 | "org.freedesktop.systemd.test", | |
285 | "LowerCase", | |
d4100e24 LP |
286 | &error, |
287 | &reply, | |
288 | "s", | |
289 | "HELLO"); | |
89ffcd2a | 290 | if (r < 0) { |
d4100e24 | 291 | log_error("Failed to issue method call: %s", strerror(-r)); |
89ffcd2a LP |
292 | goto finish; |
293 | } | |
294 | ||
295 | r = sd_bus_message_read(reply, "s", &hello); | |
296 | if (r < 0) { | |
297 | log_error("Failed to get string: %s", strerror(-r)); | |
298 | goto finish; | |
299 | } | |
300 | ||
301 | assert(streq(hello, "hello")); | |
302 | ||
2c93b4ef LP |
303 | if (pipe2(pp, O_CLOEXEC|O_NONBLOCK) < 0) { |
304 | log_error("Failed to allocate pipe: %m"); | |
305 | r = -errno; | |
306 | goto finish; | |
307 | } | |
308 | ||
b7f247e0 | 309 | r = sd_bus_call_method( |
2c93b4ef LP |
310 | bus, |
311 | "org.freedesktop.systemd.test", | |
312 | "/", | |
313 | "org.freedesktop.systemd.test", | |
314 | "FileDescriptor", | |
b7f247e0 LP |
315 | &error, |
316 | NULL, | |
317 | "h", | |
318 | pp[1]); | |
2c93b4ef | 319 | if (r < 0) { |
b7f247e0 | 320 | log_error("Failed to issue method call: %s", strerror(-r)); |
2c93b4ef LP |
321 | goto finish; |
322 | } | |
323 | ||
324 | errno = 0; | |
325 | if (read(pp[0], &x, 1) <= 0) { | |
326 | log_error("Failed to read from pipe: %s", errno ? strerror(errno) : "early read"); | |
327 | goto finish; | |
328 | } | |
329 | ||
89ffcd2a LP |
330 | r = 0; |
331 | ||
332 | finish: | |
333 | if (bus) { | |
334 | _cleanup_bus_message_unref_ sd_bus_message *q; | |
335 | ||
336 | r = sd_bus_message_new_method_call( | |
337 | bus, | |
338 | "org.freedesktop.systemd.test", | |
339 | "/", | |
340 | "org.freedesktop.systemd.test", | |
e3017af9 | 341 | "ExitClient1", |
89ffcd2a | 342 | &q); |
b7f247e0 | 343 | if (r < 0) |
89ffcd2a | 344 | log_error("Failed to allocate method call: %s", strerror(-r)); |
b7f247e0 LP |
345 | else |
346 | sd_bus_send(bus, q, NULL); | |
89ffcd2a | 347 | |
89ffcd2a LP |
348 | sd_bus_flush(bus); |
349 | sd_bus_unref(bus); | |
350 | } | |
351 | ||
352 | sd_bus_error_free(&error); | |
2c93b4ef LP |
353 | |
354 | close_pipe(pp); | |
355 | ||
e3017af9 LP |
356 | return INT_TO_PTR(r); |
357 | } | |
358 | ||
eb01ba5d | 359 | static int quit_callback(sd_bus *b, sd_bus_message *m, void *userdata) { |
e3017af9 LP |
360 | bool *x = userdata; |
361 | ||
3a7d4f1b | 362 | log_error("Quit callback: %s", strerror(-bus_message_to_errno(m))); |
e3017af9 LP |
363 | |
364 | *x = 1; | |
365 | return 1; | |
366 | } | |
367 | ||
368 | static void* client2(void*p) { | |
369 | _cleanup_bus_message_unref_ sd_bus_message *m = NULL, *reply = NULL; | |
370 | sd_bus *bus = NULL; | |
c784c5ce | 371 | sd_bus_error error = SD_BUS_ERROR_NULL; |
e3017af9 | 372 | bool quit = false; |
b9bf7e2b LP |
373 | const char *mid; |
374 | int r; | |
e3017af9 LP |
375 | |
376 | r = sd_bus_open_user(&bus); | |
377 | if (r < 0) { | |
378 | log_error("Failed to connect to user bus: %s", strerror(-r)); | |
379 | goto finish; | |
380 | } | |
381 | ||
a652755d LP |
382 | r = sd_bus_message_new_method_call( |
383 | bus, | |
384 | "org.freedesktop.systemd.test", | |
385 | "/foo/bar/waldo/piep", | |
386 | "org.object.test", | |
387 | "Foobar", | |
388 | &m); | |
389 | if (r < 0) { | |
390 | log_error("Failed to allocate method call: %s", strerror(-r)); | |
391 | goto finish; | |
392 | } | |
393 | ||
394 | r = sd_bus_send(bus, m, NULL); | |
395 | if (r < 0) { | |
396 | log_error("Failed to issue method call: %s", bus_error_message(&error, -r)); | |
397 | goto finish; | |
398 | } | |
399 | ||
400 | sd_bus_message_unref(m); | |
401 | m = NULL; | |
402 | ||
392d5b37 LP |
403 | r = sd_bus_message_new_signal( |
404 | bus, | |
405 | "/foobar", | |
406 | "foo.bar", | |
407 | "Notify", | |
408 | &m); | |
409 | if (r < 0) { | |
410 | log_error("Failed to allocate signal: %s", strerror(-r)); | |
411 | goto finish; | |
412 | } | |
413 | ||
414 | r = sd_bus_send(bus, m, NULL); | |
415 | if (r < 0) { | |
416 | log_error("Failed to issue signal: %s", bus_error_message(&error, -r)); | |
417 | goto finish; | |
418 | } | |
419 | ||
420 | sd_bus_message_unref(m); | |
421 | m = NULL; | |
422 | ||
b9bf7e2b LP |
423 | r = sd_bus_message_new_method_call( |
424 | bus, | |
425 | "org.freedesktop.systemd.test", | |
426 | "/", | |
427 | "org.freedesktop.DBus.Peer", | |
428 | "GetMachineId", | |
429 | &m); | |
430 | if (r < 0) { | |
431 | log_error("Failed to allocate method call: %s", strerror(-r)); | |
432 | goto finish; | |
433 | } | |
434 | ||
435 | r = sd_bus_send_with_reply_and_block(bus, m, 0, &error, &reply); | |
436 | if (r < 0) { | |
437 | log_error("Failed to issue method call: %s", bus_error_message(&error, -r)); | |
438 | goto finish; | |
439 | } | |
440 | ||
441 | r = sd_bus_message_read(reply, "s", &mid); | |
442 | if (r < 0) { | |
443 | log_error("Failed to parse machine ID: %s", strerror(-r)); | |
444 | goto finish; | |
445 | } | |
446 | ||
447 | log_info("Machine ID is %s.", mid); | |
448 | ||
449 | sd_bus_message_unref(m); | |
450 | m = NULL; | |
451 | ||
e3017af9 LP |
452 | r = sd_bus_message_new_method_call( |
453 | bus, | |
454 | "org.freedesktop.systemd.test", | |
455 | "/", | |
456 | "org.freedesktop.systemd.test", | |
457 | "Slow", | |
458 | &m); | |
459 | if (r < 0) { | |
460 | log_error("Failed to allocate method call: %s", strerror(-r)); | |
461 | goto finish; | |
462 | } | |
463 | ||
b9bf7e2b LP |
464 | sd_bus_message_unref(reply); |
465 | reply = NULL; | |
466 | ||
e3017af9 LP |
467 | r = sd_bus_send_with_reply_and_block(bus, m, 200 * USEC_PER_MSEC, &error, &reply); |
468 | if (r < 0) | |
469 | log_info("Failed to issue method call: %s", bus_error_message(&error, -r)); | |
470 | else | |
471 | log_info("Slow call succeed."); | |
472 | ||
473 | sd_bus_message_unref(m); | |
474 | m = NULL; | |
475 | ||
476 | r = sd_bus_message_new_method_call( | |
477 | bus, | |
478 | "org.freedesktop.systemd.test", | |
479 | "/", | |
480 | "org.freedesktop.systemd.test", | |
481 | "Slow", | |
482 | &m); | |
483 | if (r < 0) { | |
484 | log_error("Failed to allocate method call: %s", strerror(-r)); | |
485 | goto finish; | |
486 | } | |
487 | ||
488 | r = sd_bus_send_with_reply(bus, m, quit_callback, &quit, 200 * USEC_PER_MSEC, NULL); | |
489 | if (r < 0) { | |
490 | log_info("Failed to issue method call: %s", bus_error_message(&error, -r)); | |
491 | goto finish; | |
492 | } | |
493 | ||
494 | while (!quit) { | |
495 | r = sd_bus_process(bus, NULL); | |
496 | if (r < 0) { | |
497 | log_error("Failed to process requests: %s", strerror(-r)); | |
498 | goto finish; | |
499 | } | |
500 | if (r == 0) { | |
501 | r = sd_bus_wait(bus, (uint64_t) -1); | |
502 | if (r < 0) { | |
503 | log_error("Failed to wait: %s", strerror(-r)); | |
504 | goto finish; | |
505 | } | |
506 | } | |
507 | } | |
508 | ||
509 | r = 0; | |
510 | ||
511 | finish: | |
512 | if (bus) { | |
513 | _cleanup_bus_message_unref_ sd_bus_message *q; | |
514 | ||
515 | r = sd_bus_message_new_method_call( | |
516 | bus, | |
517 | "org.freedesktop.systemd.test", | |
518 | "/", | |
519 | "org.freedesktop.systemd.test", | |
520 | "ExitClient2", | |
521 | &q); | |
522 | if (r < 0) { | |
523 | log_error("Failed to allocate method call: %s", strerror(-r)); | |
524 | goto finish; | |
525 | } | |
526 | ||
527 | sd_bus_send(bus, q, NULL); | |
528 | sd_bus_flush(bus); | |
529 | sd_bus_unref(bus); | |
530 | } | |
531 | ||
532 | sd_bus_error_free(&error); | |
533 | return INT_TO_PTR(r); | |
89ffcd2a LP |
534 | } |
535 | ||
536 | int main(int argc, char *argv[]) { | |
e3017af9 | 537 | pthread_t c1, c2; |
89ffcd2a LP |
538 | sd_bus *bus; |
539 | void *p; | |
540 | int q, r; | |
541 | ||
542 | r = server_init(&bus); | |
49e5de64 ZJS |
543 | if (r < 0) { |
544 | log_info("Failed to connect to bus, skipping tests."); | |
545 | return EXIT_TEST_SKIP; | |
546 | } | |
89ffcd2a | 547 | |
e3017af9 LP |
548 | log_info("Initialized..."); |
549 | ||
550 | r = pthread_create(&c1, NULL, client1, bus); | |
551 | if (r != 0) | |
89ffcd2a | 552 | return EXIT_FAILURE; |
89ffcd2a | 553 | |
e3017af9 LP |
554 | r = pthread_create(&c2, NULL, client2, bus); |
555 | if (r != 0) | |
556 | return EXIT_FAILURE; | |
89ffcd2a | 557 | |
e3017af9 LP |
558 | r = server(bus); |
559 | ||
560 | q = pthread_join(c1, &p); | |
561 | if (q != 0) | |
562 | return EXIT_FAILURE; | |
2181a7f5 LP |
563 | if (PTR_TO_INT(p) < 0) |
564 | return EXIT_FAILURE; | |
565 | ||
e3017af9 | 566 | q = pthread_join(c2, &p); |
89ffcd2a LP |
567 | if (q != 0) |
568 | return EXIT_FAILURE; | |
2181a7f5 LP |
569 | if (PTR_TO_INT(p) < 0) |
570 | return EXIT_FAILURE; | |
571 | ||
89ffcd2a LP |
572 | if (r < 0) |
573 | return EXIT_FAILURE; | |
574 | ||
575 | return EXIT_SUCCESS; | |
576 | } |